AWS - version 2.2w
Support for SOAP 1.1 - version 1.4
SMTP, POP, LDAP and Jabber protocols.
Document revision level $Revision: 1.170 $
Date: 20 September 2006
AdaCore
Copyright © 2000, Pascal Obry
Copyright © 2001, Pascal Obry, Dmitriy Anisimkov
Copyright © 2002-2005, AdaCore
This document may be copied, in whole or in part, in any form or by any means, as is or with alterations, provided that (1) alterations are clearly marked as alterations and (2) this copyright notice is included unmodified in any copy.
AWS stand for Ada Web Server. It is an Ada implementation of the
HTTP/1.1 protocol as defined in the RFC 2616 from June 1999.
The goal is not to build a full Web server but more to make it possible
to use a Web browser (like Internet Explorer, or Netscape Navigator) to
control an Ada application. As we'll see later it is also possible to
have two Ada programs exchange informations via the HTTP protocol. This
is possible as AWS also implement the client side of the HTTP protocol.
Moreover with this library it is possible to have more than one server
in a single application. It is then possible to export different kind
of services by using different HTTP ports, or to have different ports
for different services priority. Client which must be served with a
very high priority can be assigned a specific port for example.
As designed, AWS big difference with a standard CGI server
is that there is only one executable. A CGI server has one
executable for each request or so, this becomes a pain to build and
to distribute when the project gets bigger. We will also see that it is
easier with AWS to deal with session data.
AWS support also HTTPS (secure HTTP) using
SSL. This is based on OpenSSL a very good and Open Source SSL
implementation.
Major supported features are:
AWS has been mainly developed with GNAT on Windows.
It is built and tested regularly on GNU/Linux and
Solaris, it should be fairly portable across platforms. To
build AWS you need:
GNAT GAP 2005 Edition,
GNAT GPL 2005 Edition or GNAT Pro 5.04w as the Ada 2005
Ada.Containers is used. The code should be fairly portable but
has never been tested on another compiler than GNAT.
GNAT.Sockets is the default socket implementation used. It is possible
to use AdaSockets (AdaSockets was used in AWS v 1.2) and
in this case you must install the AdaSockets package.
On Windows you must use the one distributed at
http://www.obry.net/contrib which is a
Win32 port (done by Dmitriy Anisimkov) of the ENST version.
On UNIX you must use the socket binding from ENST
http://www.rfc1149.net/devel/adasockets.
AWS/LDAP API
on UNIX based systems, you need to install properly the OpenLDAP
package. On Windows you don't need to install it as the
libldap.a library will be built by AWS and will use the
standard Windows LDAP DLL wldap32.dll.
You can download OpenLDAP from http://www.openldap.org.
The AWS.OS_Lib has 3 implementations. One using POSIX, one using
GNAT.OS_Lib and one using direct Win32 calls. This last
one is not anymore supported in this version. Contribution is welcome
of course.
GNAT.OS_Lib is GNAT dependent and will run on whatever
OS GNAT has be ported to. This is the default implementation used.
$ make gnat_oslib
POSIX is compiler and OS independent (well if you
have a POSIX implementation for your OS). Check out Florist
which is available on many UNIX and the version for Win32 is
available on http://www.obry.net/contrib.
$ make posix_oslib
$ make win32_oslib
This package is the standard (non-SSL) socket implementation. It exists different implementation of this package:
GNAT.Sockets, is GNAT dependent and will
run on whatever OS GNAT has be ported to. This is the
default implementation used. To select this implementation just do:
$ make gnatsockets
AdaSockets packages. This was the default implementation
used up to AWS 1.2. To select this implementation just do:
$ make adasockets
Before building be sure to edit makefile.conf, this file
contains many settings important for the build. Note that it is
important to run make setup each time you edit this file.
When you have built and configured all external libraries you must set the
ADA_PROJECT_PATH variable to point to the GNAT Project files for
the different packages. For XML/Ada support, you also need to set
XMLADA to true in makefile.conf.
At this point you can build AWS with:
$ make setup build
Note that by default AWS demos will be built without SSL
support except on Windows. If you want to build the demos with
SSL on UNIX (in this case you must have libssl.a and
libcrypto.a available on your platform), open
makefile.conf and set the SOCKET variable to
openssl. Then rebuild with:
$ make setup build
It is is possible to build AWS in debug mode by setting
DEBUG make's variable in makefile.conf, or just:
$ make DEBUG=1 setup build
Note that by default AWS is configured to use the GNAT
compiler. So, if you use GNAT you can build AWS just with:
$ make setup build
If you want to build only the AWS libraries and tools and do not want
to build the demos you can set EXTRA_MODULES to "" as in:
$ make EXTRA_MODULES="" build
During the build, the AWS library and demos will be compiled. The
demos are a good way to learn how to use AWS. Yet to learn all
features in AWS you'll need to read the documentation.
Here are a short description of the demos:
PNG
image and an HTML page. The executable is self contained.
AWS features. If this test runs fine
on your platform, AWS is certainly ok.
AWS.Services.Page_Server.
see Static Page server.
If XML/Ada is installed it is possible to build the SOAP binding
and the SOAP demos, for this just type:
$ make build_soap
There is four demos:
SOAP protocol.
SOAP procedures for testing purpose.
SOAP program that test all seven SOAP
procedure of the above server.
In each case you'll certainly have to edit the makefile to correctly set
the include path for the libraries POSIX, OpenSSL,
Socket and XML/Ada. For more information, look at the makefiles.
When the build is done you must install AWS at a specific
location. The target directory is defined with the INSTALL
makefile.conf variable. The default value is your home directory. To
install:
$ make install
To install AWS into another directory you can either edit
makefile.conf and set INSTALL to the directory you like
to install AWS or just force the make INSTALL variable:
$ make INSTALL=/opt install
Alternatively, with GNAT 5.03 and above it is possible to
install AWS into the GNAT Standard Library location. In this
case AWS is ready-to-use as there is no need to set
ADA_PROJECT_PATH, just set INSTALL to point to GNAT root
directory:
$ make INSTALL=/opt/gnatpro/5.03a install
Now you are ready to use AWS !
After installing AWS you must set the build environment to
point the compiler to the right libraries. First let's say that
AWS has been installed in awsroot directory.
This can be done automatically for the GNAT compiler by using
the <awsroot>/set-aws.sh on UNIX or <awsroot>\set-aws.cmd
on Windows.
If you pefer setting the environment yourself here is how to do with
GNAT.
-aI<awsroot>/include.
AWS uses some components they are installed in
<awsroot>/components. Add this path into ADA_INCLUDE_PATH or
put it on the command line -I<awsroot>/components.
AWS libraries
(libaws.a) are installed into <awsroot>/lib. Add this
path into ADA_OBJECTS_PATH or put it on the command line
-aO<awsroot>/lib. Furthermore for gnatlink to find the
libraries you must add the following library path option on the
gnatmake command line -largs -L<awsroot>/lib -laws.
Note that to build SSL applications you need to add -lssl -lcrypto on
gnatmake's -largs section.
GNAT to the
AdaSockets libraries and pass -ladasockets on the gnatmake's
-largs section. The same apply if you have built AWS with
POSIX or with SSL support.
The best solution is to use the installed GNAT Project File
aws.gpr. This is supported only for GNAT 5.01 or
above. You must have installed XML/Ada with project file
support too.
If this is the case just set the ADA_PROJECT_PATH variable to
point to the AWS and XML/Ada install directories. From
there you just have to with the AWS project file in your GNAT
Project file, nothing else to set.
with "aws";
project Simple is
for Main use ("prog.adb");
for Source_Dirs use (".");
for Object_Dir use ".";
end Simple;
If your application must support SSL, you have to link against the
-lcrypto and -lssl libraries. Add a package
Linker in your project file, something like:
package Linker is
for Default_Switches ("Ada") use ("-lcrypto", "-lssl");
end Linker;
See the GNAT User's Guide for more information about GNAT Project Files.
AWS is not a Web Server like IIS or Apache, it is a component
to embedded HTTP protocol in an application. It means that it is possible
to build an application which can also answer to a standard browser like
Internet Explorer or Netscape Navigator. Since AWS provides
support client and server HTTP protocol, applications can communicate
through the HTTP channel. This give a way to build distributed
applications, See AWS.Client.
An application using AWS can open many HTTP channels. Each
channel will use a specific port. For example, it is possible to
embedded many HTTP and/or many HTTPS channels in the
same application.
To build a server you must:
WS : AWS.Server.HTTP;
AWS.Server.Start (See AWS.Server.)
procedure Start
(Web_Server : in out HTTP;
Name : in String;
Callback : in Response.Callback;
Max_Connection : in Positive := Def_Max_Connect;
Admin_URI : in String := Def_Admin_URI;
Port : in Positive := Def_Port;
Security : in Boolean := False;
Session : in Boolean := False;
Case_Sensitive_Parameters : in Boolean := True;
Upload_Directory : in String := Def_Upload_Dir);
-- Start the Web server. It initialize the Max_Connection connections
-- lines. Name is just a string used to identify the server. This is used
-- for example in the administrative page. Admin_URI must be set to enable
-- the administrative status page. Callback is the procedure to call for
-- each resource requested. Port is the Web server port. If Security is
-- set to True the server will use an HTTPS/SSL connection. If Session is
-- set to True the server will be able to get a status for each client
-- connected. A session ID is used for that, on the client side it is a
-- cookie. Case_Sensitive_Parameters if set to False it means that the CGI
-- parameters name will be handled without case sensitivity. Upload
-- directory point to a directory where uploaded files will be stored.
Start takes many parameters:
The administrative page returns many information about the server. It is
possible to configure the server via two configuration files
See Configuration options.
OpenSSL library.
Note that there is other Start routines which support other features.
For example there is a Start routine which use a dispatcher routine
instead of the simple callback procedure. see AWS.Server. And
there is also the version using a Config.Object which is the most
generic one.
The callback procedure has the following prototype:
function Service (Request : in AWS.Status.Data) return AWS.Response.Data;
This procedure receive the request status. It is possible to retrieve
information about the request through the AWS.Status API
(See AWS.Status.).
For example, to know what URI has been asked:
URI : constant String := AWS.Status.URI (Request);
if URI = "/whatever" then
...
end if;
Then this function should return an answer using one of the constructors
in AWS.Response (See AWS.Response.). For example, to return an
HTML message:
AWS.Response.Build (Content_Type => "text/html",
Message_Body => "<p>just a demo");
It is also possible to return a file. For example, here is the way to return a PNG image:
AWS.Response.File (Content_Type => "image/png",
Filename => "adains.png");
Note that the main procedure should exit only when the server is terminated.
For this you can use the AWS.Server.Wait service.
A better solution is to use a template engine like Templates_Parser to
build the HTML Web Server answer. Templates_Parser module is
distributed with this version of AWS.
The callback procedure is the user's code that will be called by the AWS
component to get the right answer for the requested resource. In fact
AWS just open the HTTP message, parsing the HTTP header and it builds
an object of type AWS.Status.Data. At this point it calls the
user's callback procedure, passing the object. The callback procedure
must returns the right response for the requested resources. Now AWS
will just build up the HTTP response message and send it back to
user's browser.
But what is the resource ?
Indeed in a standard Web development a resource is either a static
object - an HTML page, an XML or XSL document -
or a CGI script. With AWS a resource is just a
string to identify the resource, it does not represent the name of a
static object or CGI script.
So this string is just an internal representation for the resource. The callback procedure must be implemented to handle each internal resource and return the right response.
Let's have a small example. For example we want to build a Web server that will answer “Hello World” if we ask for the internal resource /hello, and must answer “Hum...” otherwise.
with AWS.Response;
with AWS.Server;
with AWS.Status;
procedure Hello_World is
WS : AWS.Server.HTTP;
function HW_CB (Request : in AWS.Status.Data)
return AWS.Response.Data
is
URI : constant String := Status.URI (Request);
begin
if URI = "/hello" then
return AWS.Response.Build ("text/html", "<p>Hello world !");
else
return AWS.Response.Build ("text/html", "<p>Hum...");
end if;
end HW_CB;
begin
AWS.Server.Start
(WS, "Hello World", Callback => HW_CB'Unrestricted_Access);
delay 30.0;
end Hello_World;
Now of course the resource internal name can represent a file on
disk. It is not mandatory but it is possible. For example it is
perfectly possible to build with AWS a simple page server.
As an example, let's build a simple page server. This server will
returns files in the current directory. Resources internal name
represent an HTML page or a GIF or PNG image for
example. This server will return a 404 message (Web Page Not Found) if
the file does not exist. Here is the callback procedure that implements
such simple page server:
function Get (Request : in AWS.Status.Data) return AWS.Response.Data is
URI : constant String := AWS.Status.URI (Request);
Filename : constant String := URI (2 .. URI'Last);
begin
if OS_Lib.Is_Regular_File (Filename) then
return AWS.Response.File
(Content_Type => AWS.MIME.Content_Type (Filename),
Filename => Filename);
else
return AWS.Response.Acknowledge
(Messages.S404,
"<p>Page '" & URI & "' Not found.");
end if;
end Get;
Form parameters are stored into a table of key/value pair. The key is the form input tag name and the value is the content of the input field as filled by the user.
Enter your name
<FORM METHOD=GET ACTION=/get-form>"
<INPUT TYPE=TEXT NAME=name VALUE="<default>" size=15>
<INPUT TYPE=SUBMIT NAME=go VALUE="Ok">
</FORM>
Note that as explained above see Callback procedure, the resource
described in ACTION is just an internal string representation
for the resource.
In this example there is two form parameters:
There is many functions (in AWS.Parameters) to retrieve the tag name
or value and the number of parameters. Here are some examples:
function Service (Request : in AWS.Status.Data)
return AWS.Response.Data
is
P : constant AWS.Parameters.List := AWS.Status.Parameters (Request);
...
AWS.Parameters.Get (P, "name")AWS.Parameters.Get_Name (P, 1)AWS.Parameters.Get (P, 1)AWS.Parameters.Get (P, "go")AWS.Parameters.Get_Name (P, 2)AWS.Parameters.Get (P, 2)Request is the AWS current connection status passed to the
callback procedure. And P is the parameters list retrieved from the
connection status data. For a discussion about the callback procedure
See Building an AWS server.
The directory containing the server program must contain the following files if you plan to use a status page See Status page.
HTML file for the AWS status page.
AWS logo displayed on the status page.
AWS hotplug table up arrow.
AWS hotplug table down arrow.
Note that these filenames are the current AWS default. But it is
possible to change those defaults using the configuration files
see Configuration options.
We have already seen, in simple examples, how to build basic answers using
AWS.Response API. In this section we present all ways to build
answers from basic support to the more advanced support like the
compressed memory stream response.
A redirection is a way to redirect the client's browser to another URL. Client's won't notice that a redirection has occurs. As soon as the browser has received the response from the server it will retrieve the page as pointed by the redirection.
return Response.URL (Location => "/use-this-one");
User will receive a Web page saying that this page has moved and eventually pointing to the new location.
return Response.Moved
(Location => "/use-this-one";
Message => "This page has moved, please update your reference");
For protected pages you need to ask user to enter a password. see Authentication.
Acknowledge can be used to send back error messages. There is
many kind of status code, see Message.Status_Code
definition. Together with the status code it is possible to pass
textual error message in Message_Body parameter.
return Response.Acknowledge
(Status_Code => Messages.S503,
Message_Body => "Can't connect to the database, please retry later.",
Content_Type => MIME.Text_Plain);
This is the simplest way to build a response object. There is two
constructors in AWS.Response, one based on a standard string
and one for Unbounded_String.
return Response.Build (MIME.Text_HTML, "My answer");
The Build routine takes also a status code parameter to handle
errors. By default this code is Messages.S200 which is the
standard HTTP status (no error encountered). The other parameter can
be used to control caches. see AWS.Response.
This is exactly as above but the Build routine takes a
Stream_Element_Array instead of a string.
To build a File response there is a single constructor named
File. This routine is very similar to the one above except that
we specify a filename as the response.
return Response.File (MIME.Text_HTML, "index.html");
Again there parameters to control the status code and cache. No check on the filename is done at this point, so if index.html does not exit no exception is raised. The server is responsible to check for the file and to properly send back the 404 message if necessary.
Note that this routine takes an optional parameter named Once
that is to be used for temporary files created on the server side for
the client. With Once set to True the file will be
deleted by the server after sending it (this includes the case where
the download is suspended).
Sometimes it is not possible (or convenient) to build the response in
memory as a string object for example. Streams can be used to
workaround this. The constructor for such response is again very
similar to the ones above except that instead of the data we pass an
handle to a Resources.Streams.Stream_Type object.
The first step is to build the stream object. This is done by deriving
a new type from Resources.Streams.Stream_Type and implementing
three abstract procedures.
ReadEnd_Of_FileCloseThe second step is to build the response object:
type SQL_Stream is new Resources.Streams.Stream_Type;
Stream_Object : SQL_Stream;
procedure Read (...) is ...
function End_Of_File (...) return Boolean is ...
procedure Close (...) is
...
return Response.Stream (MIME.Text_HTML, Stream_Object);
Note that in some cases it is needed to create a file containing the
data for the client (for example a tar.gz or a zip archive). But there
is no way to properly remove this file from the file system as we
really don't know when the upload is terminated when using the
AWS.Response.File constructor. To solve this problem it is
possible to use a stream as the procedure Close is called by
the server when all data have been read. In this procedure it is
trivial to do the necessary clean-up.
An ready-to-use implementation of the stream API described above where the stream content is read from an on-disk file.
An ready-to-use implementation of the stream API described above where the stream content is read from an on-disk file. When the transfer is completed the file is removed from the file system.
This is an implementation of the standard stream support described above. In this case the stream is in memory and built by adding data to it.
To create a memory stream just declare an object of type
AWS.Resources.Streams.Memory.Stream_Type. When created, this
memory stream is empty, using the Streams.Memory.Append
routines it is possible to add chunk of data to it. It is of course
possible to call Append as many times as needed. When done just
return this object to the server.
Data : AWS.Resources.Streams.Memory.Stream_Type;
Append (Data, Translator.To_Stream_Element_Array ("First chunk"));
Append (Data, Translator.To_Stream_Element_Array ("Second chunk..."));
...
return Response.Stream (MIME.Text_HTML, Data);
Note that you do not have to take care of releasing the allocated
memory, the default Close routine will do just that.
This is a slight variant of the standard memory stream described
above. In this case the stream object must be declared as a
AWS.Resources.Streams.Memory.ZLib.Stream_Type.
The ZLib stream object must be initialized to enable the
compression and select the right parameters. This is done using the
AWS.Resources.Streams.Memory.ZLib.Deflate_Initialize routine which
takes many parameters to select the right options for the compression
algorithm, all of them have good default values. When initialized the
compressed stream object is used exactly as a standard stream.
Data : AWS.Resources.Streams.Memory.ZLib.Stream_Type;
Deflate_Initialize (Data);
Append (Data, Translator.To_Stream_Element_Array ("First chunk"));
Append (Data, Translator.To_Stream_Element_Array ("Second chunk..."));
...
return Response.Stream (MIME.Text_HTML, Data);
Note that there is the reverse implementation to decompress a stream. see AWS.Resources.Streams.Memory.ZLib. It's usage is identical.
AWS has a specific high level service to split a large response
into a set of pages. For more information see Split pages.
To configure an AWS server it is possible to use a
configuration object. This object can be set using the AWS.Config.Set
API or initialized using a configuration file.
Configuration files are a way to configure the server without recompiling it. Each application can be configured using two configurations files:
Furthermore, it is possible to read a specific configuration file
using the AWS.Config.Ini.Read routine. see AWS.Config.Ini.
Current supported options are:
Accept_Queue_Size (positive)Admin_URI (string)AWS.Server.Start. The default is .
Certificate (string)PEM format
and the chain must be sorted starting with the subject's certificate, followed
by intermediate CA certificates if applicable and ending at the highest
level (root) CA certificate. If the file contains only a single
certificate, it can be followed by a private key. In this case the Key
parameter (see below) must empty.
Case_Sensitive_Parameters (boolean)True the HTTP parameters are case
sensitive. The default value is TRUE.
Check_URL_Validity (boolean)Cleaner_Wait_For_Client_Timeout (duration)Cleaner_Client_Header_Timeout (duration)Cleaner_Client_Data_Timeout (duration)Cleaner_Server_Response_Timeout (duration)Directory_Browser_Page (string)Down_Image (string).Error_Log_Filename_Prefix (string)Error_Log_Split_Mode [None/Each_Run/Daily/Monthly]Exchange_Certificate (boolean)Force_Wait_For_Client_Timeout (duration)Force_Client_Header_Timeout (duration)Force_Client_Data_Timeout (duration)Force_Server_Response_Timeout (duration)Free_Slots_Keep_Alive_Limit (positive)Hotplug_Port (positive)Key (string)Line_Stack_Size (positive)Log_File_Directory (string)AWS.Log if logging
facility is enabled. By default log files are written in the current
directory. The default is ./.
Log_Filename_Prefix (string)Log_Split_Mode [None/Each_Run/Daily/Monthly]Logo (string).Max_Connection (positive)AWS.Server.Start. The
default is 5.
Note that the total number of threads used by a server is:
N = <main server thread> + <max connections> [+ <session>]
Note: [...] means optional value
Add 1 only if the session feature is activated. This is
due to the session cleaner task.
Receive_Timeout (duration)Security_Mode (string)Send_Timeout (duration)Server_Host (string)Server_Name (string)AWS.Server.Start. The default is "AWS Module".
Server_Port (integer)AWS.Server.Start. The default is
8080.
Session_Lifetime (duration)Session_Cleanup_Interval (duration)Status_Page (string)Transient_Cleanup_Interval (positive)Transient_LifetimeUp_Image (string)Upload_Directory (string)WWW_Root (string)Each option value can be retrieved using the AWS.Config unit or
set using AWS.Config.Set.
For example to build a server where the port and the maximum number of connection can be changed via a configuration file (either aws.ini or <program_name>.ini):
WS : AWS.Server.HTTP;
Conf : constant AWS.Config.Object := AWS.Config.Get_Current;
Server.Start (WS, Service'Access, Conf);
AWS provides a way to keep session data while users are
browsing. There is no need to mess with the Cookies, AWS will do
that for you. The idea is simple. A session ID will be transparently
created and then you'll be able to insert and retrieve session data
using a standard Ada API (See AWS.Session.). Session data
are key/value pair each of them being strings. How to deal with that ?
WS : AWS.Server.HTTP;
Server.Start (WS,
Port => 1234,
Callback => Service'Access,
Session => True);
Here we have built an HTTP channel with a maximum of 3 simultaneous connections using the port 1234. A session ID will be created and sent inside a cookie to the client's browser at the first request. This session ID will be sent back to the server each time the client will ask for a resource to the server.
function Service (Request : in AWS.Status.Data) return AWS.Response.Data;
The Session ID is kept in the Request object and can be retrieved using:
Session_ID : constant AWS.Session.ID := AWS.Status.Session (Request);
declare
C : Integer;
begin
C := AWS.Session.Get (Session_ID, "counter");
C := C + 1;
AWS.Session.Set (Session_ID, "counter", C);
end;
This example first get the value (as an Integer) for session data whose
key is "counter", increment this counter and then set it back to
the new value.
It is also possible to save and restore all session data. It means that the server can be shutdown and launched some time after and all client data are restored as they were at shutdown time. Client will just see nothing. With this feature it is possible to shutdown a server to update its look or because a bug has been fixed for example. It is then possible to restart it keeping the complete Web server context.
AWS supports Basic and Digest authentication. The
authentication request can be sent at any time from the callback
procedure. For this the AWS.Response.Authenticate message must
be returned.
The authentication process is as follow:
From the callback routine return an authentication request when needed.
function Service (Request : in Status.Data) return Response.Data is
URI : constant String := Status.URI (Request);
User : constant String := Status.Authorization_Name (Request);
begin
-- URI starting with "/prot/" are protected
if URI (URI'First .. URI'First + 5) = "/prot/"
and then User = ""
then
return Response.Authenticate ("AWS", Response.Basic);
The first parameter is the Realm, it is just a string that will be displayed (on the authentication dialog box) by the browser to indicate for which resource the authentication is needed.
When an authentication as been done the callback's request data contain the user and password. Checks the values against an ACL for each protected resources.
function Protected_Service
(Request : in AWS.Status.Data)
return AWS.Response.Data
is
User : constant String := Status.Authorization_Name (Request);
Pwd : constant String := Status.Authorization_Password (Request);
begin
if User = "xyz" and then Pwd = "azerty" then
return ...;
Note that the Basic authentication is not secure at all. The password is sent unencoded by the browser to the server. If security is an issue it is better to use the Digest authentication and/or an SSL server.
File upload is the way to send a file from the client to the server. To enable file upload on the client side the Web page must contain a FORM with an INPUT tag of type FILE. The FORM must also contain the enctype attribute set to multipart/form-data.
<FORM enctype="multipart/form-data" ACTION=/whatever METHOD=POST>
File to process: <INPUT NAME=filename TYPE=FILE>
<INPUT TYPE=SUBMIT NAME=go VALUE="Send File">
</FORM>
On the server side, AWS will retrieve the file and put it into the upload directory. AWS add a prefix to the file to ensure that the filename will be unique on the server side. The upload directory can be changed using the configuration options. See Configuration options.
AWS will also setup the form parameters as usual. In the above example there is two parameters (See Form parameters.)
This API is used to do communication between programs using the HTTP
GET protocol. It is a very simple API not to be compared with GLADE
or SOAP. This communication facility is to be used for simple
request or when a light communication support is needed. For more
complex communications or to achieve inter-operability with other
modules it is certainly a good idea to have a look at the
AWS/SOAP support, see SOAP.
In a communication there is a Client and a Server. Here is what is to be done on both sides to have programs talking together.
On the client side it is quite simple. You just have to send a message
using AWS.Communication.Client.Send_Message.
function Send_Message
(Server : in String;
Port : in Positive;
Name : in String;
Parameters : in Parameter_Set := Null_Parameter_Set)
return Response.Data;
The message is sent to the specified server using the given port. A
message is composed of a name which is a string and a set of
parameters. There is a parameter set constructor in
AWS.Communication. This function return a response as for any
callback procedure.
On the server side things are a bit more complex but not that
difficult. You must instantiate the AWS.Communication.Server
generic package by providing a callback procedure. This callback
procedure will must handle all kind of message that a client will send.
During instantiation you must also pass a context for the communication server. This context will be passed back to the callback procedure.
generic
type T (<>) is limited private;
type T_Access is access T;
with function Callback
(Server : in String;
Name : in String;
Context : in T_Access;
Parameters : in Parameter_Set := Null_Parameter_Set)
return Response.Data;
package AWS.Communication.Server is
...
A complete example can be found in the demos directory. Look for
com_1.adb and com_2.adb.
Note that this communication API is used by the Hotplug module facility See Hotplug module.
An Hotplug module is a module that can by dynamically binded to a running server. It is a Web server and the development process is very similar to what we have seen until now See Building an AWS server. The Hotplug module will register itself into a Web server by sending a message using the communication API. The Hotplug module send to the server a regular expression and an URL. The main server will redirect all URL matching the regular expression to the Hotplug module.
Note that the main server will redirect the URL to the first matching regular expression.
The first step is to properly create the main server hotplug module registration file. This file must list all hotplug modules that can register into the main server. Each line have the following format:
hotplug_module_name:password:server:port
server.
You must create a password for each hotplug modules. The generated
password depends on the hotplug module name. A tool named
hotplug_password is provided with AWS to generate such
password. Usage is simple:
$ hotplug_password <hotplug_module_name> <password>
Then, after starting the main server you must activate the Hotplug feature:
AWS.Server.Hotplug.Activate (WS'Unchecked_Access, 2222, "hotplug_conf.ini");
hotplug_conf.ini is the hotplug module registration file described above.
Here is how to create an Hotplug module:
WS : AWS.Server.HTTP
(3, 1235, False, Hotplug_CB.Hotplug'Access, False);
Here we have a server listening to the port 1235. This server can be used alone if needed as any Server developed with AWS.
Response := AWS.Client.Hotplug.Register
(Name => "Hotplug_Module_Demo",
Password => "my_password",
Server => "http://dieppe:2222",
Regexp => ".*AWS.*",
URL => "http://omsk:1235/");
The hotplug module Hotplug_Module_Demo must have been declared
on the main server, the password and redirection must have been
properly recorded too for security reasons
see Hotplug module - server activation.
This command register Hotplug_Module_Demo into the server running
on the machine dieppe and ask it to redirect all URL
containing AWS to the server running on machine omsk on
port 1235.
Response := AWS.Client.Hotplug.Unregister
(Name => "Hotplug_Module_Demo",
Password => "my_password",
Server => "http://dieppe:2222",
Regexp => ".*AWS.*");
Here we ask to unregister Hotplug_Module_Demo from server
dieppe. As for the registration process a proper password must
be specified see Hotplug module - server activation.
A complete example can be found in the demos directory. Look for
main.adb and hotplug.adb.
Server Push is a feature that let the Web Server send continuously data to client's Web Browser or client applications. The client does not have to reload at periodic time (which is what is called client pull) to have the data updated, each time the server send a piece of data it gets displayed on the client.
To build a push server you need to build an instance of the
AWS.Server.Push package. This package takes a set of formal
parameters. Here are the step-by-step instructions to build a Push
Server:
First you must create a type that will contains the data to be sent to
client's browser except if it is a standard Ada type. See
Client_Output_Type formal parameter.
This is the representation of the data that will be sent to client's
browser. This will be either a String for Web pages or
Stream_Element_Array for binary data like pictures. See
Stream_Output_Type formal parameter.
It is often nice to be able to configure each client with different
parameters if needed. This can be achieved with the Context data type
that will be passed as parameter of the conversion function described
below. See Client_Environment formal parameter.
This is a function that will transform the data described on point 1
above to the form described on point 2 above. See
To_Stream_Output formal parameter.
To do so you just need to instantiate AWS.Server.Push with the
above declarations.
In the standard AWS procedure callback it is possible to register a
client if requested. This is done by calling
AWS.Server.Push.Register. It is possible to unregister a
client using AWS.Server.Push.Unregister. Each client must be
identified with a unique client ID. After registering a new client
from the callback procedure you must return the
AWS.Response.Socket_Taken message. This is very important, it
tells the server to not close this socket.
At this point it is possible to send data to clients. To do so two routines are available.
Very large Internet applications should use this feature carefully. A push server keeps a socket reserved for each registered clients and the number of available sockets per process is limited by the OS.
With AWS is is possible to take out a socket from the server and give
it back later. This feature must be used carefully but it gives a lot
of flexibility. As the socket is taken away, the connection line (or slot)
is released, AWS can then use it to handle other requests.
This can be used to better support heavy loaded servers when some requests need a long time to complete. Long time here means longer than most of the other requests which should be mostly interractives for a Web server. Of course in such a case a keep-alive connection is kept open.
The usage in such a case is to take out the socket and put it in a waiting line. This releases the connection for the server. When the data to prepare the answer is ready you give back the socket to the server.
This first step is done form the callback function. A user instead of
replying immediatly decides to take away the socket from the
server. The first step is to record the connection socket socket by
calling AWS.Status.Socket. The second step is to tell the
server to not release this socket by returning AWS.Response.Socket_Taken
from the callback function. At this point the server will continue to
serve other clients.
Note that this feature is used by the server push implementation see Server Push.
Calling AWS.Sever.Give_Back_Socket will register the socket for
reuse. This socket will be placed into a spool, next time the server
will check for incoming requests it will be picked up.
It is possible to have the server activity logged into the file
<progname>-Y-M-D.log. To activate the logging you must call the
AWS.Server.Log.Start, and it is possible to stop logging by calling
AWS.Server.Log.Stop. Note that AWS.Server.Log.Start have
a parameter named Auto_Flush to control output buffering. This
parameter is False by default. If set to True, the log file will be
automatically flushed after each data. If the server logging is not
buffered, i.e. Auto_Flush is False, the log can still be flushed by
calling the AWS.Server.Log.Flush routine. See AWS.Log, for
more information especially about the way rotating logs can be
setup. Using this feature it is possible to have automatic split of
the log file each day, each month or at every run. See AWS.Log
spec. This is very useful to avoid having very big log files.
The log format is using the same format than the Apache Web server.
<client IP> - <auth name> - [<date and time>] "<request>" <status code> <size>
For example:
100.99.12.1 - - [22/Nov/2000:11:44:14] "GET /whatever HTTP/1.1" 200 1789
AWS also support error log files. If activated every internal error
detected by AWS will gets logged into this special file. See
AWS.Server.Log.Start_Error and
AWS.Server.Log.Stop_Error.
For the full set of routines supporting the log facility see AWS.Server.Log .
It is not much difficult to use a secure server (HTTPS) than a
standard one. Here we describe only what is specific to an HTTPS
server.
Before going further you must check that AWS has been
configured with SSL support. see Building. You must also
have installed the OpenSSL library on your system. If this is
done, you can continue reading this section.
A server is configured as using the HTTPS protocol at the time it is
started. The only thing to do is to set the Start's Security parameter
to True. This will start a server and activate the SSL layer by
default. A secure server must use a valid certificate, the default one
is cert.pem. This certificate has been
created by the openssl tool and is valid until year 2008. Yet, this
certificate has not been signed. To build a secure server user's can
rely on, you must have a valid certificate signed by one of the
Certificate Authorities.
The certificate to be used must be specified before starting the
secure server with AWS.Server.Set_Security.
AWS.Server.Set_Security (WS, Certificate_Filename => "/xyz/aws.pem");
The goal here is not to replace the OpenSSL documentation but
just to present one way to create a certificate for an HTTPS
test server.
$ openssl genrsa -rand <filename> -out ca-key.pem
Filename must be point to any file, this is used to initialized the
random seed.
$ openssl req -new -x509 -days 730 -key ca-key.pem -out ca-cert.pem
$ cat ca-key.pem ca-cert.pem > aws.pem
A this point you can use aws.pem with your server.
There are different security options, either SSLv2, SSLv3 or
TLSv1. SSLv2 and SSLv3 are supported by most if
not all Web browsers. These are the default protocol used by
AWS.
TLSv1 is not supported at this point.
When AWS detects an internal problem, it calls a specific
handler. This handler can be used to log the error, send an alert
message or build the answer to be sent back to the client's browser.
Here is the spec for this handler:
type Unexpected_Exception_Handler is access
procedure (E : in Ada.Exceptions.Exception_Occurrence;
Log : in out AWS.Log.Object;
Error : in Data;
Answer : in out Response.Data);
The handler can be called in two modes:
AWS will continue working without problem. A
bug has been detected but it was not fatal to the thread (slot in
AWS's terminology) handling. In this case it is possible to
send back an application level message to the client's browser. For
that you just have to fill the unexpected handler's Answer parameter
with the right response message. The Error parameter receive
information about the problem, see AWS.Exceptions.
AWS will continue working but a thread (slot number
Error.Slot in AWS's terminology) will be killed. It means
that AWS will have lost one the simultaneous connection
handler. The server will continue working unless it was the last slot handler
available. Note that a Fatal error means an AWS internal bug
and it should be reported if possible. In this mode there is no way to
send back an answer to the client's browser and Error value must
be ignored.
The default handler for unexpected exceptions send a message to standard error for fatal errors. For non fatal errors it log a message (if the error log is activated for the server) and send back a message back to the client. The message is either a built-in one or, if present in the server's directory, the content of the 500.tmplt file. This templates can used the following tags:
XML payload for SOAP request.
SOAP request.
For more information see AWS.Server and see AWS.Exceptions.
To ease AWS applications debugging it is possible to log all data
sent/received to/from the sockets. For this you need to call the
AWS.Net.Log.Start routine by passing a write procedure
callback. You have to create such procedure or use one read-to-use
provided in AWS.Net.Log.Callbacks package.
For more information see AWS.Net.Log and see AWS.Net.Log.Callbacks.
AWS is not only a server it also implement the HTTP and HTTPS
protocol from the client side. For example with AWS it is
possible to get a Web page content using the AWS.Client API,
See AWS.Client.
It also support client Keep-Alive connections. It is then possible to request many URI from the same server using the same connection (i.e. the same sockets).
AWS client API also support proxy, proxy authentication and Web server
authentication. Only basic (and not digest) authentication is
supported at this time.
Let's say that you want to retrieve the contrib.html Web page from
Pascal Obry's homepage which is http://perso.wanadoo.fr/pascal.obry. The
code to do so is:
Data := Client.Get
(URL => "http://perso.wanadoo.fr/pascal.obry/contrib.html");
From there you can ask for the result's content type:
if Response.Content_Type (Data) = "text/html" then
...
end if;
Or using the MIME types defined in AWS.MIME unit:
if Response.Content_Type (Data) = MIME.Text_HTML then
...
end if;
And display the content if it is some kind of text data:
Text_IO.Put_Line (Response.Message_Body (Data));
If the content is some kind of binary data (executable, PNG image, Zip
archive...), then it is possible to write the result to a file for
example. Look at the agent program in the demos
directory.
If the Web page is protected and you must pass the request through an authenticating proxy, the call will becomes:
Data := Client.Get
(URL => "http://www.mydomain.net/protected/index.html"
User => "me",
Pwd => "mypwd",
Proxy => "192.168.67.1",
Proxy_User => "puser",
Proxy_Pwd => "ppwd");
The client upload protocol is implemented. Using AWS.Client.Upload it
is possible to send a file to a server which support the file upload protocol.
Here you will find a description of high level services. These services are ready to use with AWS and can be used together with user's callbacks.
Refer to the Ada spec for a complete API and usage description.
This service will help building a Web directory browser. It has a lot of options to sort directory entries and is based on the templates interface see AWS.Templates. This means that you can use the default directory template or provide your own.
see AWS.Services.Directory for complete spec and services descriptions.
In many AWS applications it is needed to check the URI to give the right answer. This means that part of the application is a big if/elsif procedure. Also, in standard callback it is not possible to have user data. Both of these restrictions are addressed with the Dispatchers facilities.
Working with a dispatcher is quite easy:
This is a wrapper around the standard callback procedure. It is needed
to mix dispatcher based callback and access to procedure
callback. Note that it is not in the AWS.Services.Dispatchers
hierarchy but in AWS.Dispatchers.Callback because this is a
basic service needed for the server itself. It is referenced here for
documentation purpose but an AWS server can be built with using it.
see AWS.Dispatchers.Callback for complete spec description.
This is a dispatcher based on the request method. A different callback procedure can be registered for the supported request methods: GET, POST, PUT, HEAD.
see AWS.Services.Dispatchers.Method for complete spec description.
This is a dispatcher based on the request resource. A different callback procedure can be registered for specific resources. The resource is described either by its full name (string) or a regular expression.
see AWS.Services.Dispatchers.URI for complete spec description.
This is a dispatcher based on the host name. A different callback procedure can be registered for specific host. This is also known as virtual hosting.
The same computer can be registered into the DNS with different names. So all names point to the same machine. But in fact you want each name to be seen as a different Web server. This is called virtual hosting. This service will just do that, call different callback procedures or redirect to some machine/port based on the host name in the client's request.
see AWS.Services.Dispatchers.Virtual_Host for complete spec description.
This is a dispatcher that calls a user's callback and if the resource requested is not found (i.e. the user's callback returns status code 404) it checks if this resource is known as a transient page. see Transient Pages.
A timer dispatcher can be used to call different callback routines
depending on the current date and time. Such dispatcher is composed of
a set of Period activated. When the current date and time is
inside a Period the corresponding callback is called. A
Period can eventually be repeated. Here are the different kind
of Period supported by AWS:
A dispatcher that can be used to chain two dispatchers. The response of the first dispatcher is returned except if it is a 404 (Not Found) error. In this case, the response of the second dispatcher is returned.
AWS provides also a SOAP specific dispatcher. This is a way to
automatically route HTTP requests or SOAP requests to different
callback routines.
see SOAP helpers for more information.
see SOAP.Dispatchers.Callback for complete spec description.
This service is a ready to use static page server callback. Using it is possible to build a simple static page server, as simple as:
with AWS.Server;
with AWS.Services.Page_Server;
procedure WPS is
WS : AWS.Server.HTTP;
begin
AWS.Server.Start
(WS, "Simple Page Server demo",
Port => 8080,
Callback => AWS.Services.Page_Server.Callback'Access,
Max_Connection => 5);
AWS.Server.Wait (AWS.Server.Q_Key_Pressed);
AWS.Server.Shutdown (WS);
end WPS;
Build this program and launch it, it will server HTML pages and images
in the current directory.
It is possible to activate the directory browsing facility of this simple page server. This is not activated by default. This feature is based on the directory browsing service see Directory browser.
Note that this service uses two template files:
Note that on Microsoft IE this page will be displayed only if the total page size is bigger than 512 bytes or it includes at least one image.
see AWS.Services.Page_Server for a complete spec description.
A transient page is a resource that has a certain life time on the server. After this time the resource will be released and will not be accessible anymore.
Sometimes you want to reference, in a Web page, a resource that is built in memory by the server. This resource can be requested by the client (by clicking on the corresponding link) or not, in both cases the page must be released after a certain amount of time to free the associated memory.
This is exactly what the transient pages high level service do
automatically. Each transient page must be registered into the
service, a specific routine named Get_URI can be used to create
a unique URI on this server. see AWS.Services.Transient_Pages.
A transient pages dispatcher can be used to build a transient pages aware server. see Transient pages dispatcher.
It not not very convenient to send back a Web page with a large table. In such a case it is better to split the table in chunks (20 lines or so) and to send only the first page. This page reference the next pages and can also contains an index of the pages.
The AWS's split page feature can automatically do that for
you. Given template Translate_Table or Translate_Set and the
max line per page it returns the first page and create a set of
transient pages for all other pages. A set of template tags are used
to reference the previous and next page and also to build the page index.
There is different ways to split a set of pages and ready-to-use splitters are available:
Using the spliter abstract interface it is possible to build a customized splitter algorithm. see AWS.Services.Split_Pages.
A server that need to handle lot of large downloads can run out of connection to answer the standard Web pages. A solution is to increase the number of simultaneous connections, but this is not really efficient as a task is created for each connection and does not ensure that all the connections will be used for the downloads anyway.
The download manager can be used for that, and provides the following feature:
The server must be configured to use dispatchers (standard callbacks are not supported, note that it is possible to create a dispatcher for standard callbacks. see AWS.Dispatchers.Callback).
To start the download manager you need to pass the main server dispatcher object. The start routine will return a new dispatcher, linked with the download server specific dispatcher, that must be used to start the standard Web server. See comment in see AWS.Services.Download.
To queue a download request in the download manager you just need to
create a stream object (can be any kind of stream, see
AWS.Resources.Streams.*) for the resource to download.
The download manager needs two templates files:
aws_download_manager_waiting.thtmlaws_download_manager_start.thtmlIt is important to note that those templates must be reloaded
periodically. The best way to do that in the context of an HTML
document is to use a meta-tag. For example to refresh the page every
two seconds:
<meta http-equiv="refresh" content="2">
The templates could look like:
aws_download_manager_waiting.thtml <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="refresh" content="2">
<title>Download Manager - waiting</title>
</head>
<body>
<p>Waiting for downloading @_NAME_@
<p>Position in the waiting line @_POSITION_@
</body>
</html>
aws_download_manager_start.thtml <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="refresh" content="2">
<title>Download Manager - waiting</title>
</head>
<body>
<p>Waiting for downloading @_NAME_@
<p>The download will start in a moment
</body>
</html>
AWS provides some components to help creating nice looking Web
interfaces. It is possible to browse those Web Elements using the
web_elements demo. Just launch this Web application from the
demos directory and turn your Web browser to
http://localhost:2400.
Currently AWS provides:
All of them are based on templates to be easily reused in other
applications. The three first are best described by the Web Elements
demos as they are 100% design. The Ajax one is a bit more complex, we
will present its use in the following section.
To ease integration we have used the following design:
AWS's web_elements directory
are self contained. The content must be copied into the project. Note
that the icons and javascripts directories contain the
icons and javascripts code shared by all web elements and must also be
copied, see below.
/we_icons/<icon_name>. So users must provide the right alias
("/we_icons/") in the Web server.
/we_js/<script>. So users must provide the right alias
("/we_js/") in the Web server.
First of all, Ajax stand for
Asynchronous JavaScript language and XML, and is not well defined
at the moment. Ajax is on one side able to send HTTP requests
to the Web server and on the other side able to manipulate directly the Web
browser's DOM tree. On the DOM it can add, remove or
replace XML nodes. So, it is possible to change the content of
a Web page without reloading it from the server.
Most importantly, Ajax changes the way Web applications are
thought from page based to event based.
As implemented into AWS, Ajax support comes as a set of
JavaScript templates. Using those templates there is no need to
know JavaScript (except for the JavaScript event names) and it
makes Ajax programming lot easier. Two actions are provided,
one for replacing another for clearing part of the web page content.
What are the steps to do Ajax ?
Remember, do not think about the Web page but about a specific widget
(HTML fragments) with the associated event and action.
This is the AWS/Ajax runtime, it contains JavaScript
code needed for the AWS/Ajax support.
There is nothing special here, use your favorite Web designer tool.
Using some HTML <div> tags we create areas where we will place
HTML fragments later. For example when clicking on a button
(described above) in our Web interface we want to display a new form
in this area.
Give a different name to the widgets using id="name". This name will
be later used to identify the widgets on which the envent and
corresponding action must be placed. We do not want to clutter the Web
design with JavaScript code like onclick="dothis()" or
onchange="dothat()".
This is the interresting part. At this point we link events/actions to the widgets and specify in which area the results sent by the server will be placed.
This is not the only way to do Ajax, we just presented here a simple
approach that works well with the AWS/Ajax templates.
This section describes the AWS/Ajax support where the answer from the
server is an HTML fragment. This basic support is designed to
be used for migration of a Web server to Ajax. For new
applications, it is worth considering using the XML based Ajax support,
see XML based Ajax.
Let's have a very simple example:
@@INCLUDE@@ aws.tjs
<input id="clickme" type="button" value="Clik Me">
<div id="placeholder">... result here ...</div>
@@INCLUDE@@ aws_action_replace.tjs onclick clickme placeholder
Basically it places an onclick attribute (the event) in the HTML
<input> identified as clickme (the action) above. Here is
what happen when the button is clicked:
<div> placeholder.
On the server side the code would look like this:
function Callback (Request : in Status.Data) return Response.Data is
URI : constant String := Status.URI (Request);
begin
if URI = "/clickme" then
return Response.Build (MIME.Text_HTML, "you click me!");
...
So when the button is clicked the string "you click me!" will replace the "... result here ..." string of the place holder div above.
This is a simple and very limited example as there is no parameter
passed to the HTTP request. In real Web applications it is necessary
to send a context with the request. This can be either the value of
other widgets or all values of widgets' form.
References to widgets or forms can be passed to the aws_action_replace.tjs template starting with the 5th parameter.
<input id="field" type="text" value="default value">
...
@@INCLUDE@@ aws_action_replace.tjs (onclick clickme placeholder 5=>field)
or
<form id="small_form" name="small_form">
...
</form>
@@INCLUDE@@ aws_action_replace.tjs (onclick clickme placeholder 5=>small_form)
Note that the onclick event is only one of the possible
JavaScript event on a button. It is possible to used
any supported event, for example on an HTML <select> widget
it is common to map the action to the onchange event.
AWS also provides support for clearing an area or a widget
content (like an input).
@@INCLUDE@@ aws_action_clear.tjs (onclick, clear, field)
This simple action adds the onclick event to the clear button to erase the content of the field widget.
In many cases you'll like to update and/or clear multiple areas in your
Web interface. With the templates above only a single action is
possible. AWS provides support for XML based answers. In
this XML documents it is possible to:
<replace id="item_id">new text</replace>
<clear id="item_id"/>
<select action="add" id="item_id"
option_value="value" option_content="content"/>
<select action="delete" id="item_id" option_value="value"/>
<select action="select" id="item_id" option_value="value"/>
<select action="clear" id="item_id"/>
<radio action="select" id="item_id"/>
<check action="select" id="item_id"/>
<check action="clear" id="item_id"/>
<get url="http://thishost/action">
<parameters value="name=Ajax"/>
<field id="input1"/>
</get>
This will send the following request:
http://thishost/action?name=Ajax&input1=<val_input1>
Where val_input1 is the current value of the input1 input
widget. The result must be an XML/Ajax document that will be parsed.
<make_sortable>
<list id="firstlist"/>
<list id="secondlist"/>
</make_sortable>
Here firstlist and secondlist are id of UL elements. It is
possible to specified as many list id as needed. A drag and drop is
then possible for all elements in those lists. It is then possible to
reference such list by passing the list id as a field to the
template. Items on those list will be serialized and passed to the AWS
callback. Note that for the serialization to work properly, each
LI elements must be given the id of the list and then the value
we want to pass.
<ul id="firstlist">
<li id="firstlist_red">Red</li>
<li id="firstlist_green">Green</li>
<li id="firstlist_blue">Blue</li>
</ul>
The serialization will send each value on this list using a multi-valued parameter named firstlist[].
http://server?firstlist[]=red&firstlist[]=green&firstlist[]=blue
<destroy_sortable>
<list id="firstlist"/>
<list id="secondlist"/>
</destroy_sortable>
Remove the sortable properly from the specified lists.
<location url="http://thishost/go_there"/>
Redirect the browser to the specified URL.
<apply_style id="node_id">
<attribute id="display" value="none"/>
</apply_style>
Add the CSS style display:none to the node_id element. It
is possible to specify multiple attributes if needed.
Here is an example of such XML document:
<response>
<replace id="xml_status_bar">Fill Widgets...</replace>
<replace id="text1">Response from XML</replace>
<replace id="text2">Another response for text2</replace>
<replace id="input1">tag is input1</replace>
<replace id="input2">tag is input2</replace>
<select action="add" id="xmlsel" option_value="one" option_content="1"/>
<select action="add" id="xmlsel" option_value="two" option_content="2"/>
<select action="add" id="xmlsel" option_value="three" option_content="3"/>
<select action="select" id="xmlsel" option_value="two"/>
<radio action="select" id="radio1"/>
<check action="select" id="check1"/>
<check action="select" id="check3"/>
<check action="clear" id="check2"/>
</response>
The template to use this feature is aws_action_xml.tjs. The usage is similar to what is described in the previous section (see Basic Ajax support) expect that in this case we do not have to pass the placeholder.
Let's revisit the first example above to use the XML
Ajax support.
@@INCLUDE@@ aws.tjs
<input id="clickme" type="button" value="Clik Me">
<div id="placeholder">... result here ...</div>
@@INCLUDE@@ aws_action_xml.tjs onclick clickme
Basically it places an onclick attribute (the event) in the HTML
<input> identified as clickme (the action) above. Here is
what happen when the button is clicked:
XML content.
To set the placeholder with "new text", the XML document
returned by the server must be:
<response>
<replace id="placeholder">new text</replace>
</response>
If we want also to clear the input field named field and to select the radio button named radio1 we must return:
<response>
<replace id="placeholder">new text</replace>
<clear id="field"/>
<radio action="select" id="radio1"/>
</response>
This is by far the most flexible solution as it is possible to return, from the server, a structured answer.
A final comment, if the text returned by the server to replace a
specific area is an HTML fragment, the content must be placed into a
CDATA tag:
<response>
<replace id="item_id">
<![CDATA[ HTML CODE HERE ]]>
</replace>
</response>
Finally, if this is not enough because you need to use some specific
JavaScript code, AWS provides a template to add an event
to a specific widget, the action being the name of a JavaScript
routine, see aws_action_js.tjs.
This template together with aws_func_replace.tjs, aws_func_clear.tjs and aws_func_xml.tjs can be used to chain multiple actions. Those templates are the function body used by the corresponding templates aws_action_replace.tjs, aws_action_clear.tjs and aws_action_xml.tjs.
Let say you want to clear a widget, change the content of another one
and calling one of your specific JavaScript routine when clicking on
a button. It is not possible to have mutiple onclick events on
the same widget, the solution is the following:
For this in the the body of the clear_replace() JavaScript
routine we place:
function clear_replace()
{
@@INCLUDE@@ aws_func_replace.tjs (clickme placeholder 4=>field)
@@INCLUDE@@ aws_func_clear.tjs (area)
call_this_routine();
}
Then to add the event on the widget:
@@INCLUDE@@ aws_action_js.tjs (onclick clickme clear_replace)
Furthermore, it is possible to pass (as the parameter number 20) a routine to call after a specific action to all templates. This is another way to chain multiple actions for a single event.
Note that all AWS/Ajax templates have a set of comments at the start
explaining in details the usage of each parameter.
SOAP can be used to implements Web Services. The SOAP
implementation uses AWS HTTP as the transport layer. SOAP is
platforms and languages independent, to ensure a good
inter-operability, AWS/SOAP implementation has been validated through
http://validator.soapware.org/, the version number listed on
this server corresponds to the AWS version string
(AWS.Version) catenated with the SOAP version string
(SOAP.Version).
This SOAP implementation is certainly one with the higher level
of abstraction. No need to mess with a serializer, to know what is a
payload or be an XML expert. All the low level stuffs are
completely hidden as the SOAP type system has been binded as
much as possible to the Ada type system.
The SOAP type system has been relaxed to be compatible with
WSDL based SOAP implementation. In these implementations, types
are generally (as in the Microsoft implementation) not part of the
payload and should be taken from the WSDL (Web Services Description
Language). AWS/SOAP is not WSDL compliant at this stage, all
such types are binded into the Ada type system as strings. It is up to
the programer to convert such strings to the desired type.
The SOAP client interface is quite simple. Here are the step-by-step
instructions to call a SOAP Web Service:
SOAP parameters
As for the SOAP servers, the SOAP parameters are built using a
SOAP.Parameters.List object.
Params : constant Parameters.List
:= +I (10, "v1") & I (32, "v2");
SOAP Payload
The Payload object is the procedure name and the associated parameters.
declare
Payload : Message.Payload.Object;
begin
Payload := Message.Payload.Build ("Add", Params);
SOAP Web Service
Here we send the above Payload to the Web Server which handles the Web
Service. Let's say that this server is named myserver, it is
listening on port 8082 and the SOAPAction is soapdemo.
Resp : constant Message.Response.Object'Class :=
SOAP.Client.Call ("http://myserver:8082/soapdemo", Payload);
Let's say that the answer is sent back into the parameter named "myres", to get it:
My_Res : constant Integer := SOAP.Parameters.Get (Params, "myres");
In the above example we have called a Web Service whose spec could be described in Ada as follow:
function Add (V1, V2 : in Integer) return Integer;
-- Add V1 and V2 and returns the result. In SOAP the result is named "myres"
A SOAP server implementation must provides a callback procedure as for
standard Web server see Callback procedure. This callback must
checks for the SOAP Action URI to handle both standard Web requests
and SOAP ones. The SOAPAction is sent with the HTTP headers and
can be retrieved using AWS.Status.SOAPAction.
Here are the step-by-step instructions to be followed in the SOAP
callback procedure:
SOAP Payload
The SOAP Payload is the XML message, it contains the
procedure name to be called and the associated parameters.
function SOAP_CB (Request : in AWS.Status.Data)
return AWS.Response.Data
is
use SOAP.Types;
use SOAP.Parameters;
Payload : constant SOAP.Message.Payload.Object
:= SOAP.Message.XML.Load_Payload (AWS.Status.Payload (Request));
AWS.Status.Payload returns the XML Payload as sent by
the SOAP Client. This XML Payload is then parsed using
SOAP.Message.XML.Load_Payload which returns a
SOAP.Message.Payload.Object object.
SOAP Parameters
The SOAP procedure's parameters.
Params : constant SOAP.Parameters.List
:= SOAP.Message.Parameters (Payload);
SOAP.Parameters.List is a structure which holds the SOAP
parameters. Each parameter can be retrieved using a
SOAP.Parameters API, see SOAP.Parameters. For example to
get the parameter named myStruc which is a SOAP struct:
My_Struct : constant SOAP_Record
:= SOAP.Parameters.Get (Params, "myStruct");
Another example, to get the parameter named myInt which is a
SOAP integer:
My_Int : constant Integer := SOAP.Parameters.Get (Params, "myInt");
This is the real job, as for any procedure you can do whatever is needed to compute the result.
SOAP answer
This is the procedure answer. A SOAP answer is built from the
SOAP Payload and by setting the returned parameters.
declare
Resp : SOAP.Message.Response.Object;
Resp_Params : SOAP.Parameters.List;
begin
Resp := SOAP.Message.Response.From (Payload);
Resp_Params := +I (My_Int * 2, "answer");
SOAP.Message.Set_Parameters (Resp, Resp_Params);
This build a response which is a single integer value named
answer with the value My_Int * 2.
This last step will encode the response object in XML and will
returns it as the body of an HTTP message.
return SOAP.Message.Response.Build (Resp);
There is two ways to help building the SOAP
callbacks. AWS provides a SOAP specific callback, the spec is :
function SOAP_Callback
(SOAPAction : in String;
Payload : in Message.Payload.Object;
Request : in AWS.Status.Data)
return AWS.Response.Data;
With both solutions exposed below, AWS retrieve the
SOAPAction and the Payload from the SOAP request. This
is transparent to the user.
SOAP.Utils.SOAP_Wrapper generic routine.
generic
with function SOAP_CB
(SOAPAction : in String;
Payload : in Message.Payload.Object;
Request : in AWS.Status.Data)
return AWS.Response.Data;
function SOAP_Wrapper
(Request : in AWS.Status.Data)
return AWS.Response.Data;
-- From a standard HTTP callback call the SOAP callback passed as generic
-- formal procedure. Raise Constraint_Error if Request is not a SOAP
-- request.
For example, from the standard HTTP callback CB we want to call
SOAP_CB for all SOAP requests:
function SOAP_CB
(SOAPAction : in String;
Payload : in Message.Payload.Object;
Request : in AWS.Status.Data)
return AWS.Response.Data
is
begin
-- Code here
end SOAP_CB;
procedure SOAP_Wrapper is new SOAP.Utils.SOAP_Wrapper (SOAP_CB);
function CB (Request : in AWS.Status.Data)
return AWS.Response.Data
is
SOAPAction : constant String := Status.SOAPAction (Request);
begin
if SOAPAction /= "" then
SOAP_Wrapper (Request);
else
...
AWS provides also a SOAP specific dispatcher. This
dispatcher will automatically calls a standard HTTP or
SOAP callback depending on the request. If SOAPAction is
specified (i.e. it is a SOAP request), the dispatcher will call
the SOAP callback otherwise it will call the standard HTTP
callback. This is by far the easiest integration procedure. Using
dispatcher the above code will be written:
function SOAP_CB
(SOAPAction : in String;
Payload : in Message.Payload.Object;
Request : in AWS.Status.Data)
return AWS.Response.Data
is
begin
-- Code here
end SOAP_CB;
function CB (Request : in AWS.Status.Data)
return AWS.Response.Data
is
SOAPAction : constant String := Status.SOAPAction (Request);
begin
-- Code here
end CB;
-- In the main procedure
begin
AWS.Server.Start
(WS,
Dispatcher =>
SOAP.Dispatchers.Callback.Create (CB'Access, SOAP_CB'Access),
Config =>
AWS.Config.Default_Config);
The dispacther is created using SOAP.Dispatchers.Callback.Create.
This routine takes two parameters, one is the standard HTTP
callback procedure and the other is the SOAP callback procedure.
WSDL (Web Service Definition Language) is an XML based document
which described a set of Web Services either based on SOAP or
XML/RPC.
By using a WSDL document it is possible to describe, in a formal way,
the interface to any Web Services. The WSDL document contains the
end-point (URL to the server offering the service), the SOAPAction
(needed to call the right routine), the procedure names and a
description of the input and output parameters.
AWS provides two tools to work with WSDL documents:
WSDL document from an Ada package spec.
SOAP interface is completely abstracted out, users will deal only
with Ada API. All the SOAP marshaling will be created
automatically.
Note that this tool is based on ASIS.
ada2wsdl can be used on any Ada spec file to generated a
WSDL document. The Ada spec is parsed using ASIS.
The simplest way to use it is:
$ ada2wsdl simple.ads
Given the following Ada spec file:
package Simple is
function Plus (Value : in Natural) return Natural;
end Simple;
It will generate the following WSDL document:
<?xml version="1.0" encoding="UTF-8"?>
<definitions name="Simple"
targetNamespace="urn:aws:Simple"
xmlns:tns="urn:aws:Simple"
xmlns="http://schemas.xmlsoap.org/wsdl/"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:soap-enc="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<message name="Plus_Request">
<part name="Value" type="xsd:int"/>
</message>
<message name="Plus_Response">
<part name="Result" type="xsd:int"/>
</message>
<portType name="Simple_PortType">
<operation name="Plus">
<input message="tns:Plus_Request"/>
<output message="tns:Plus_Response"/>
</operation>
</portType>
<binding name="Simple_Binding" type="tns:Simple_PortType">
<soap:binding style="rpc"
transport="http://schemas.xmlsoap.org/soap/http"/>
<operation name="Plus">
<soap:operation soapAction="Plus"/>
<input>
<soap:body
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
namespace="urn:aws:Simple"
use="encoded"/>
</input>
<output>
<soap:body
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
namespace="urn:aws:Simple"
use="encoded"/>
</output>
</operation>
</binding>
<service name="Simple_Service">
<port name="Simple_Port" binding="tns:Simple_Binding">
<soap:address location="http://.../"/>
</port>
</service>
</definitions>
In bold are marked the important parts from a spec point of view. The
first item is the name of the WSDL document (the name of the
Ada spec package). On the portType section we have the
description of the Ada Plus function. Something important to note
is that in Ada a function does not have a named return parameter,
ada2wsdl use Result for the response. Both the input and
output parameter are mapped to SOAP xsd:int type.
Note that the SOAP address generated by default (http://.../)
must be edited manually or specified using ada2wsdl's -a
option.
This is of course a very simple example. ada2wsdl does support lot
more complex specs and will map Ada records, arrays, enumerations,
derived types to a corresponding XML schema definition. See
section below for a description of the mapping.
ada2wsdl parse Ada records, arrays, derived types, enumerations,
procedures and functions and generate the corresponding WSDL
document. In this section we describe the mapping between Ada and
WSDL.
Float type should not be used
as xsd:float is really an Ada Long_Float. ada2wsdl will
issue a warning if such type is used. Note also that full
interoperability is not supported for type Float.
<simpleType name="Character">
<restriction base="xsd:string">
<length value="1"/>
</restriction>
</simpleType>
SOAP.Utils.SOAP_Base64 is a
subtype of string which is is recognized by ada2wsdl to
generate the proper SOAP type.
SOAP.Types.Byte is a type which is
recognized by ada2wsdl to generate the proper SOAP type.
SOAP.Types.Short is a type which is
recognized by ada2wsdl to generate the proper SOAP type.
SOAP.Types.Long is a type which is
recognized by ada2wsdl to generate the proper SOAP type.
SOAP.Types.Unsigned_Byte is a
type which is recognized by ada2wsdl to generate the proper SOAP type.
SOAP.Types.Unsigned_Short is a
type which is recognized by ada2wsdl to generate the proper SOAP type.
SOAP.Types.Unsigned_Int is a
type which is recognized by ada2wsdl to generate the proper SOAP type.
SOAP.Types.Unsigned_Long is a
type which is recognized by ada2wsdl to generate the proper SOAP type.
type Color is (Red, Green, Blue);
is defined as:
<simpleType name="Color">
<restriction base="xsd:string">
<enumeration value="Red"/>
<enumeration value="Green"/>
<enumeration value="Blue"/>
</restriction>
</simpleType>
type Rec is record
A : Integer;
B : Long_Float;
C : Long_Long_Float;
D : Character;
E : Unbounded_String;
F : Boolean;
end record;
is defined as:
<complexType name="Rec">
<all>
<element name="A" type="xsd:int"/>
<element name="B" type="xsd:float"/>
<element name="C" type="xsd:double"/>
<element name="D" type="tns:Character"/>
<element name="E" type="xsd:string"/>
<element name="F" type="xsd:boolean"/>
</all>
</complexType>
type Set_Of_Rec is array (Positive range <>) of Rec;
is defined as:
<complexType name="Set_Of_Rec">
<complexContent>
<restriction base="soap-enc:Array">
<attribute ref="soap-enc:arrayType" wsdl:arrayType="tns:Rec[]"/>
</restriction>
</complexContent>
</complexType>
SOAP arrays is most of the time not constrained at all. To
support this AWS use a safe access array component. Such a type
is built using a generic runtime support package named
SOAP.Utils.Safe_Pointers. This package implements a reference
counter for the array access and will release automatically the memory
when no more reference exists for a given object.
For example, let's say that we have an array of integer that we want to put inside a record:
type Set_Of_Int is array (Positive range <>) of Integer;
The first step is to create the safe array access support:
type Set_Of_Int_Access is access Set_Of_Int;
package Set_Of_Int_Safe_Pointer is
new SOAP.Utils.Safe_Pointers (Set_Of_Int, Set_Of_Int_Access);
Note that the name Set_Of_Int_Safe_Pointer (<type>_Safe_Pointer)
is mandatory (and checked by ada2wsdl) to achieve
interoperability with wsdl2aws. see Working with WSDL documents.
From there the safe array access can be placed into the record:
type Complex_Rec is record
SI : Set_Of_Int_Safe_Pointer.Safe_Pointer;
end record;
To create a Safe_Pointer given a Set_Of_Int one must use
Set_Of_Int_Safe_Pointer.To_Safe_Pointer routine. Accessing
individual items is done with SI.Item (K).
These Ada definitions are fully recognized by ada2wsdl and will
generate standard array and record WSDL definitions as seen above.
<complexType name="Set_Of_Int">
<complexContent>
<restriction base="soap-enc:Array">
<attribute ref="soap-enc:arrayType" wsdl:arrayType="xsd:int[]"/>
</restriction>
</complexContent>
</complexType>
<complexType name="Complex_Rec">
<all>
<element name="SI" type="tns:Set_Of_Int"/>
</all>
</complexType>
Usage: ada2wsdl [options] ada_spec
ada2wsdl options are:
URL for the Web Server address. Web Services will be
available at this address. A port can be specified on the URL,
http://server[:port]. The default value is http://.../.
WSDL file. Overwrite exiting file
with the same name.
ASIS compilation step. This option can
appear any number of time on the command line.
WSDL representation for Ada enumerations, map
them to standard string. see Ada mapping to WSDL.
WSDL document into file.
WSDL document, by default
the spec package's name is used.
This section describe how to use a Web Service. Let's say that we want
to use the Barnes & Noble Price Quote service. The WSDL document for
this service can be found at
http://www.xmethods.net/sd/2001/BNQuoteService.wsdl. In summary
this document says that there is a service named getPrice
taking as input a string representing the ISBN number and returning
the price as floating point.
The first step is to generate the client interface (stub):
$ wsdl2aws -noskel http://www.xmethods.net/sd/2001/BNQuoteService.wsdl
This will create many files, the interesting one at this point is bnquoteservice-client.ads, inside we have:
function getPrice
(isbn : in String)
return Long_Float;
-- Raises SOAP.SOAP_Error if the procedure fails
Let's call this service to find out the price for The Sword of Shannara Trilogy book.
with Ada.Text_IO;
with BNQuoteService.Client;
procedure Price is
use Ada;
ISBN : constant String := "0345453751";
-- The Sword of Shannara Trilogy ISBN
package LFIO is new Text_IO.Float_IO (Long_Float);
begin
Text_IO.Put_Line ("B&N Price for The Sword of Shannara Trilogy");
LFIO.Put (BNQuoteService.Client.getPrice (ISBN), Aft => 2, Exp => 0);
end Price;
That's all is needed to use this Web Service. This program is fully functional, It is possible to build it and to run it to get the answer.
Building a Web Service can also be done from a WSDL document. Let's
say that you are Barnes & Noble and that you want to build Web Service
getPrice as described in the previous section.
You have created the WSDL document to specify the service spec.
From there you can create the skeleton:
$ wsdl2aws -nostub http://www.xmethods.net/sd/2001/BNQuoteService.wsdl
This will create many files, the interesting one here is bnquoteservice-server.ads, inside we have:
Port : constant := 80;
generic
with function getPrice
(isbn : in String)
return Long_Float;
function getPrice_CB
(SOAPAction : in String;
Payload : in SOAP.Message.Payload.Object;
Request : in AWS.Status.Data)
return AWS.Response.Data;
This is a SOAP AWS's callback routine that can be instantiated
with the right routine to retrieve the price of a book given its ISBN
number. A possible implementation of such routine could be:
function getPrice
(isbn : in String)
return Long_Float is
begin
if isbn = "0987654321" then
return 45.0;
elsif ...
end getPrice;
function SOAP_getPrice is new BNQuoteService.Server.getPrice_CB (getPrice);
SOAP_getPrice is a SOAP AWS's callback routine (i.e. it is not
a standard callback). To use it there is different solutions:
AWS.Status.Data into a SOAP callback routine.
function getPrice_Wrapper is new SOAP.Utils.SOAP_Wrapper (SOAP_getPrice);
The routine getPrice_Wrapper can be used as any other AWS's
callback routines. Note that inside this wrapper the XML payload is
parsed to check the routine name and to retrieve the SOAP
parameters. To call this routine the payload needs to be parsed (we
need to know which routine has be invoked). In this case we have
parsed the XML payload twice, this is not efficient.
SOAP
procedures as the payload is parsed only once.
function CB (Request : in Status.Data) return Response.Data is
SOAPAction : constant String := Status.SOAPAction (Request);
Payload : constant SOAP.Message.Payload.Object
:= SOAP.Message.XML.Load_Payload (AWS.Status.Payload (Request));
Proc : constant String
:= SOAP.Message.Payload.Procedure_Name (Payload);
begin
if SOAPAction = "..." then
if Proc = "getPrice" then
return SOAP_getPrice (SOAPAction, Payload, Request);
elsif ...
...
end if;
else
...
end if;
Note that the port to be used by the AWS server is described into the server spec.
Usage: wsdl2aws [options] <file|URL>
It is possible to pass a WSDL file or direct wsdl2aws to
a WSDL document on the Web by passing it's URL.
wsdl2aws options are:
getPrice will be converted
to Get_Price. This formatting is done for packages, routines and formal
parameters.
SOAP routines. If -s is not used,
wsdl2aws will exit with an error when a problem is found while
parsing the WSDL document. This option is useful to skip
routines using non supported types and still be able to compile the
generated files.
WSDL document. This option can be used
only when using a Web WSDL document (i.e. passing an URL to
wsdl2aws).
WSDL document specify a document style binding even
though it is really an RPC one.
WSDL document tree.
WSDL document as comment into the generated root unit.
SOAP dispatcher callback routine for the
server. This dispatcher routine contains the code to handle all the
operations as described in the WSDL document. You need also to
specify the -spec and/or -types options, see below.
operation to the list of SOAP operations to skip during the
code generation. It is possible to specify multiple -x options on the
command line.
SOAP routines. This is used for example by the -cb option above
to instantiate all the server side SOAP callbacks used by the main
SOAP dispatcher routine. If -types is not specified, the
type definitions are also used from this spec.
SOAP routines specified with option -spec. If -spec is
not specified, the spec definitions are also used from this spec.
WSDL
document. This tag can be used to include the right units
with @_SOAP_SERVICE_@.Client;
with @_SOAP_SERVICE_@.CB;
procedure @_UNIT_NAME_@ is
begin
...
WSDL document and generate code to access
to these Web Services via this proxy. The proxy can be specified by
its DNS name or IP address.
The wsdl2aws tool read a WSDL document and creates a root
package and a set of child packages as described below:
WSDL in
comment and the description of the services as read from the WSDL
document.
SOAP
base types. We find here the definitions of the SOAP structs
and arrays with routines to convert them between the Ada and SOAP type
model. A subtype definition is also created for every routine's returned type.
In fact, all definitions here are only alias or renaming of types
and/or routines generated in other packages. The real definitions for
structs, arrays, enumerations and derived types are generated into a
package whose name depends on the name space used for these
entities. This package act as a container for all definitions and it
is the only one used in the other generated packages.
SOAP dispatcher callback routine.
It is hard to know all current limitations as the WSDL and
SOAP world is quite complex. We list there all known limitations:
SOAP base types are not supported : date, time, xsd:hexBinary, decimal. All these are easy to add (except decimal), it is just not
supported with the current version.
Using both tools together is an effective way to build rapidely a SOAP
server. It can be said that doing so is quite trivial in fact. Let's
take the following spec:
package Graphics is
type Point is record
X, Y : Long_Float;
end record;
function Distance (P1, P2 : in Point) return Long_Float;
-- Returns the distance between points P1 and P2
end Graphics;
We do not show the body here but we suppose it is implemented. To build a server for this service it is as easy as:
$ ada2wsdl -a http://localhost:8787 -o graphics.wsdl graphics.ads
The server will be available on localhost at port 8787.
$ wsdl2aws -cb -main server -types graphics graphics.wsdl
$ gnatmake server -largs ...
Options
-cbSOAP dispatcher callback routine,
-main server-types graphicsGraphics.Point for example).
AWS provides a complete API to send e-mail using SMTP
protocol. You need to have access to an SMTP server to use this
feature. The API covers sending simple mail with text message and/or
with MIME attachments (base64 encoded). Here are the steps to
send a simple e-mail:
SMTP_Server : SMTP.Receiver
:= SMTP.Client.Initialize ("smtp.hostname");
Here AWS uses the default SMTP port to create an SMTP mail server but
it is possible to specify a different one. The hostname specified
must be a valid SMTP server.
To send an e-mail there is many different API. Let's send a simple text mail.
Status : SMTP.Status;
SMTP.Client.Send
(SMTP_Server,
From => SMTP.E_Mail ("Pascal Obry", "p.obry@wanadoo.fr"),
To => SMTP.E_Mail ("John Doe", "john.doe@here.com"),
Subject => "About AWS SMTP protocol",
Message => "AWS can now send mails",
Status => Status);
Here Status will contain the SMTP returned status.
Using above status data it is possible to check that the message was
sent or not by the server. The status contain a code and an error
message, both of them can be retrieved using specific routines,
See AWS.SMTP. It is also possible to check that the call was
successful with SMTP.Is_Ok routine.
if not SMTP.Is_Ok (Status) then
Put_Line ("Can't send message: " & SMTP.Status_Message (Status));
end if;
In the above example, the message content was given as a string but it
is possible to specify a disk file. AWS can also send MIME messages
either from disk files or with in memory base64 encoded binary
data. The API provides also a way to send messages to multiple
recipients at the same time. These features are not described here,
complete documentation can be found on the spec see AWS.SMTP and
see AWS.SMTP.Client.
AWS provides an API to retrieve e-mails from a POP
mailbox. POP stands for Post Office Protocol and is the main
protocol used by Internet Service Providers around the
world. IMAP is another well known protocol in this area but it
is not supported by AWS.
We describes here the POP API. For a complete description see
see AWS.POP.
The first step is to authenticate using a user name and
password. AWS supports two methods one called Clear_Text
which is the most used and another one APOP which is more secure but
almost not supported by ISP for the moment (and will probably
never be supported as a more secure protocol named SPA -Secure
Password Authentication- could be used instead).
Mailbox : POP.Mailbox
:= POP.Initialize ("pop.hostname", "john.does", "mysuperpwd");
The default Authentication method is Clear_Text.
When the connection is opened it is possible to get information about the mailbox like the number of messages or the total number of bytes in the mailbox.
N : constant Natural := POP.Message_Count (Mailbox);
Bytes : constant Natural := POP.Size (Mailbox);
Each message is numbered starting from 1. A function named Get
will return a message given its mailbox's number.
Message : constant POP.Message := POP.Get (Mailbox, 2, Remove => True);
Remove can be set to False for the message to stay on the
mailbox. The default value is False.
Another way to retreive message is by using an iterator.
procedure Print_Subject
(Message : in POP.Message
Index : in Positive;
Quit : in out Boolean) is
begin
Text_IO.Put_Line (POP.Subject (Message));
end Print_Message;
procedure Print_All_Subjects is new POP.For_Every_Message (Print_Subject);
...
Print_All_Subjects (Mailbox, Remove => True);
It exists a set of routines on a POP.Message object to get the subject
the content, the date or any headers. It is also possible to work with
attachments. See point below.
A message can have a set of MIME attachments. The number of
attachments can be retrieved using Attachment_Count.
Message : constant POP.Message := ...;
A_Count : constant Natural := POP.Attachment_Count (Message);
As for messages it is possible to get a single attachment using its index in the message or by using an iterator.
First_Attachment : constant POP.Attachment := POP.Get (Message, 1);
procedure Write_Attachment
(Attachment : in POP.Attachment
Index : in Positive;
Quit : in out Boolean) is
begin
POP.Write (Attachment, Directory => ".");
end Print_Message;
procedure Write_All_Attachments is new POP.For_Every_Attachment (Write_Attachment);
...
Write_All_Attachments (Message);
It is also possible to retrieve the attachment's filename, the content as a memory stream. see AWS.POP.
POP.Close (POP_Server);
AWS provides a complete API to retrieve information from LDAP servers.
Note that there is no support for updating, modifying or deleting
information only to read information from the server.
The AWS/LDAP implementation is based on OpenLDAP. To
build an LDAP application you need to link with the libldap.a
library. This library is built by AWS on Windows based system
and will use the wldap32.dll as provided with Windows
NT/2000/XP. On UNIX based systems, you must install properly the
OpenLDAP package.
The steps required to read information from an LDAP server are:
declare
Directory : LDAP.Client.Directory;
begin
Directory := LDAP.Client.Init (Host);
Host is the hostname where the LDAP directory is running. It is
possible to specify the port if the LDAP server does not use the
default one.
LDAP.Client.Bind (Directory, "", "");
Response_Set := LDAP.Client.Search
(Directory, Base_DN, Filter, LDAP.Client.LDAP_Scope_Subtree,
LDAP.Client.Attributes
("cn", "sn", "telephonenumber"));
For more information see AWS.LDAP.Client.
First_Entry/Next_Entry or the
generic high level iterator For_Every_Entry.
declare
Message : LDAP.Client.LDAP_Message;
begin
Message := LDAP.Client.First_Entry (Directory, Response_Set);
while Message /= LDAP.Client.Null_LDAP_Message loop
Do_Job (Message);
Message := LDAP.Client.Next_Entry (Directory, Message);
end loop;
end;
First_Attribute / Next_Attribute
or the generic high level iterator For_Every_Attribute.
declare
BER : aliased LDAP.Client.BER_Element;
Attr : constant String := LDAP.Client.First_Attribute
(Directory, Message, BER'Unchecked_Access);
begin
Do_Job (Attr);
loop
declare
Attr : constant String := LDAP.Client.Next_Attribute
(Directory, Message, BER);
begin
exit when Attr = "";
Do_Job (Attr);
end;
end loop;
end;
LDAP.Client.Free (Message);
LDAP.Client.Unbind (Directory);
see AWS.LDAP.Client for all high level supported API and documentation.
Note that for complete information about AWS/LDAP you you should read
an LDAP API description. AWS/LDAP is only a binding and follow the
LDAP API closely.
AWS support part of the Jabber protocol. At this stage only two kind
of messages are supported:
To check the presence status of a specific JID (Jabber ID)
To send messages to a specific JID (Jabber ID)
Note that if you want an application to check the presence or send message to users it is recommended to create a specific Jabber ID on the server for this application and ask users to accept this specific user to check their presence status.
To check for the presence of another JID you must first have the right to do so. The jabber server won't let you see presence of another JID unless the JID have permitted you to see its presence.
Server : AWS.Jabber.Server;
Status : AWS.Jabber.Presence_Status;
AWS.Jabber.Connect
(Server, "jabber.domain.org", "joe", "mysuperpwd");
AWS.Jabber.Check_Presence
(Server, "john@jabber.domain.org", Status);
AWS.Jabber.Close (Server);
To send a message to a specific JID, you must connect to the server as above and close the server when you don't need to communicate with it anymore. The only different part is to send the message, here is an example:
Send_Message
(Server,
JID => "john@jabber.domain.org",
Subject => "Hello there!",
Content => "Are you using AWS ?");
It is as simple as that !
AWS support embedded resources. It means that it is possible to build
a fully self dependent executable. This is useful when distributing a
server. The server program contains the code but also the images (PNG,
JPEG, GIF), the templates, the HTML pages... more
generally any file the Web Server must serve to clients.
To embbed the files into the executable you must build a resource tree. This task is greatly simplified using AWSRes tool. For example let's say that you want to build a simple server with a single page containing some text and one PNG image. The text is handled directly in the callback procedure and contain a reference to the image logo.png. To build the resource tree:
$ awsres logo.png
This will create a set of packages whose root is the unit res by
default. The resource tree is created. see awsres tool for the complete
AWS's usage description.
awsres can also compress the resource files. This can be done
by using awsres's -z option. Compressed resources are
handled transparently. If the Web client supports compression the
resource is sent as-is otherwise a decompression stream will be
created for the resource to be decompressed on-the-fly while sending it.
This is really the simplest step. The resource tree must be linked
with your executable, to do so you just have to “with” the
resource tree root into one of your program unit. This will ensure
that the resource tree will be compiled and linked into the
executable. AWS and Templates_Parser know about resource
files and will pick them up if available.
Note that this is transparent to users. It is possible to build the very same server based on standard files or resources files. The only change in the code is to “with” or not the resource tree.
Note that AWS supports only a single resource tree. If more
than one resource tree is included into a program only one will be
seen.
Users can build a response directly from a stream. In this case the
callback answer is built using AWS.Response.Stream. It creates a
resource object whose operations have been inherited from
AWS.Resource.Stream.Stream_Type and redefined by the user. So
the Read operation can dynamically create the result stream
data, the End_Of_File operation must returns True when the
stream data is out and so on. This feature is useful to let users completely
create and control dynamically AWS's response content.
AWSRes is a tool to build resource files. It creates a root package
named res by default and a child package for each resource
file.
Usage: awsres [-hrquz] file1 [-uz] [file2...]
-h-q-r nameres.
-u-z
The status page gives information about the AWS internal status. For
example it returns the server socket ID, the number of simultaneous
connection, the number of time a connection has been used...
To display the information AWS use a template file. The
template file (default is aws_status.thtml) is an HTML file with
some specific tags recognized by the parser. For more information
about how the template parser works, please look for the template
parser documentation distributed with AWS.
Here are the tag variables recognized by AWS status page:
HTML
"<td>" tag. This is to be able to display the key/value in column.
HTML tag. This is the name of
the AWS logo image.
NONE, DAILY,
MONTHLY or EACH_RUN.
HTML
"<td>" tag. This is to be able to display the key/value in column.
AWS version string.
There is also all Templates_Parser specific tags. This is not listed
here please have a look at the Templates_Parser documentation
distributed with AWS.
Here is a list of documents used to implement AWS, the
SOAP support and associated services:
SIMPLE MAIL TRANSFER PROTOCOL
Jonathan B. Postel
August 1982
Information Sciences Institute
University of Southern California
4676 Admiralty Way
Marina del Rey, California 90291
Network Working Group E. Nebel
Request For Comments: 1867 L. Masinter
Category: Experimental Xerox Corporation
November 1995
Form-based File Upload in HTML
Network Working Group J. Myers
Request for Comments: 1939 Carnegie Mellon
STD: 53 M. Rose
Obsoletes: 1725 Dover Beach Consulting, Inc.
Category: Standards Track May 1996
Post Office Protocol - Version 3
Network Working Group T. Berners-Lee
Request for Comments: 1945 MIT/LCS
Category: Informational R. Fielding
UC Irvine
H. Frystyk
MIT/LCS
May 1996
Hypertext Transfer Protocol -- HTTP/1.0
Network Working Group N. Freed
Request for Comments: 2049 Innosoft
Obsoletes: 1521, 1522, 1590 N. Borenstein
Category: Standards Track First Virtual
November 1996
Multipurpose Internet Mail Extensions
(MIME) Part Five:
Conformance Criteria and Examples
Network Working Group D. Kristol
Request for Comments: 2109 Bell Laboratories, Lucent Technologies
Category: Standards Track L. Montulli
Netscape Communications
February 1997
HTTP State Management Mechanism
Network Working Group J. Klensin
Request for Comments: 2195 R. Catoe
Category: Standards Track P. Krumviede
Obsoletes: 2095 MCI
September 1997
IMAP/POP AUTHorize Extension for Simple Challenge/Response
Network Working Group J. Myers
Request for Comments: 2554 Netscape Communications
Category: Standards Track March 1999
SMTP Service Extension
for Authentication
Network Working Group R. Fielding
Request for Comments: 2616 UC Irvine
Obsoletes: 2068 J. Gettys
Category: Standards Track Compaq/W3C
J. Mogul
Compaq
H. Frystyk
W3C/MIT
L. Masinter
Xerox
P. Leach
Microsoft
T. Berners-Lee
W3C/MIT
June 1999
Hypertext Transfer Protocol -- HTTP/1.1
Network Working Group J. Franks
Request for Comments: 2617 Northwestern University
Obsoletes: 2069 P. Hallam-Baker
Category: Standards Track Verisign, Inc.
J. Hostetler
AbiSource, Inc.
S. Lawrence
Agranat Systems, Inc.
P. Leach
Microsoft Corporation
A. Luotonen
Netscape Communications Corporation
L. Stewart
Open Market, Inc.
June 1999
HTTP Authentication: Basic and Digest Access Authentication
Transport Layer Security Working Group Alan O. Freier
INTERNET-DRAFT Netscape Communications
Expire in six months Philip Karlton
Netscape Communications
Paul C. Kocher
Independent Consultant
November 18, 1996
The SSL Protocol
Version 3.0
Simple Object Access Protocol (SOAP) 1.1
W3C Note 08 May 2000
This version:
http://www.w3.org/TR/2000/NOTE-SOAP-20000508
Latest version:
http://www.w3.org/TR/SOAP
Authors (alphabetically):
Don Box, DevelopMentor
David Ehnebuske, IBM
Gopal Kakivaya, Microsoft
Andrew Layman, Microsoft
Noah Mendelsohn, Lotus Development Corp.
Henrik Frystyk Nielsen, Microsoft
Satish Thatte, Microsoft
Dave Winer, UserLand Software, Inc.
Copyright© 2000 DevelopMentor, International Business Machines Corporation,
Lotus Development Corporation, Microsoft, UserLand Software
By Dave Winer, Jake Savin, UserLand Software, 4/2/01.
AWS User's API:
SOAP User's API:
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2006 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
package AWS is
pragma Pure;
Version : constant String := "2.2.0";
HTTP_Version : constant String := "HTTP/1.1";
end AWS;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2004-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Strings.Unbounded;
with AI302.Containers.Indefinite_Vectors;
with AWS.Headers;
with AWS.Net;
package AWS.Attachments is
type Element is private;
type List is tagged private;
Empty_List : constant List;
procedure Add
(Attachments : in out List;
Filename : in String;
Content_Id : in String);
-- Adds an Attachment to the list. The header of the Attachment is
-- generated.
procedure Add
(Attachments : in out List;
Filename : in String;
Headers : in AWS.Headers.List);
-- Adds an Attachment to the list
procedure Reset
(Attachments : in out List;
Delete_Files : in Boolean);
-- Reset the list to be empty. If Delete_Files is set to true the
-- attached files are removed from the file system.
function Count (Attachments : in List) return Natural;
-- Returns the number of Attachments in the data
function Get
(Attachments : in List;
Index : in Positive)
return Element;
-- Returns specified Attachment
function Get
(Attachments : in List;
Content_Id : in String)
return Element;
-- Returns the Attachment with the Content Id
generic
with procedure Action
(Attachment : in Element;
Index : in Positive;
Quit : in out Boolean);
procedure For_Every_Attachment (Attachments : in List);
-- Calls action for every Attachment in Message. Stop iterator if Quit is
-- set to True, Quit is set to False by default.
function Headers (Attachment : in Element) return AWS.Headers.List;
-- Returns the list of header lines for the attachment
function Content_Type (Attachment : in Element) return String;
-- Get value for "Content-Type:" header
function Content_Id (Attachment : in Element) return String;
-- Returns Attachment's content id
function Local_Filename (Attachment : in Element) return String;
-- Returns the local filename of the Attachment.
-- Local filename is the name the receiver used when extracting the
-- Attachment into a file.
function Length
(Attachments : in List;
Boundary : in String) return Natural;
-- Returns the complete size of all attachments including the surrounding
-- boundaries.
procedure Send
(Socket : in AWS.Net.Socket_Type'Class;
Attachments : in List;
Boundary : in String);
-- Send all Attachments, including the surrounding boundarys, in the list
-- to the socket
private
-- implementation removed
end AWS.Attachments;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Streams;
with Ada.Strings.Unbounded;
with AWS.Attachments;
with AWS.Default;
with AWS.Net.SSL.Certificate;
with AWS.Response;
with AWS.URL;
with AWS.Utils;
with ZLib;
package AWS.Client is
Connection_Error : exception;
-- Raised if the connection with the server cannot be established
Protocol_Error : exception;
-- Raised if the client receives wrong HTTP protocol data
No_Data : constant String;
-- Used as the default parameter when no data specified for a specific
-- parameter.
Retry_Default : constant := 0;
-- Number of time a data is requested from the Server if the first
-- time fails.
type Timeouts_Values is record
Send : Duration;
Receive : Duration;
end record;
-- Defined the number of seconds for the send and receive timeout
No_Timeout : constant Timeouts_Values;
-- No timeout, allow infinite time to send or retrieve data
type Content_Bound is new Integer range -1 .. Integer'Last;
Undefined : constant Content_Bound := -1;
type Content_Range is record
First, Last : Content_Bound := Undefined;
end record;
-- Range for partial download
No_Range : constant Content_Range := (Undefined, Undefined);
type Authentication_Mode is new AWS.Response.Authentication_Mode;
type Authentication_Level is private;
type Authentication_Type is private;
type Auth_Attempts_Count is private;
--------------
-- Messages --
--------------
function Get
(URL : in String;
User : in String := No_Data;
Pwd : in String := No_Data;
Proxy : in String := No_Data;
Proxy_User : in String := No_Data;
Proxy_Pwd : in String := No_Data;
Timeouts : in Timeouts_Values := No_Timeout;
Data_Range : in Content_Range := No_Range;
Follow_Redirection : in Boolean := False)
return Response.Data;
-- Retrieve the message data given a specific URL. It open a connection
-- with the server and ask for the resource specified in the URL it then
-- return it in the Response.Data structure.
-- If User/Pwd are given then it uses it to access the URL.
--
-- Eventually it connect through a PROXY using if necessary the Proxy
-- authentication Proxy_User:Proxy_Pwd.
--
-- Only Basic authentication is supported (i.e. Digest is not). Digest
-- authentication is supported with the keep-alive client API, see below.
--
-- If Follow_Redirection is set to True, Get will follow the redirection
-- information for 301 status code response. Note that this is not
-- supported for keep-alive connections as the redirection could point to
-- another server.
--
-- Get will retry one time if it fails.
function Head
(URL : in String;
User : in String := No_Data;
Pwd : in String := No_Data;
Proxy : in String := No_Data;
Proxy_User : in String := No_Data;
Proxy_Pwd : in String := No_Data;
Timeouts : in Timeouts_Values := No_Timeout)
return Response.Data;
-- Idem as above but we do not get the message body.
-- Head will retry one time if it fails.
function Put
(URL : in String;
Data : in String;
User : in String := No_Data;
Pwd : in String := No_Data;
Proxy : in String := No_Data;
Proxy_User : in String := No_Data;
Proxy_Pwd : in String := No_Data;
Timeouts : in Timeouts_Values := No_Timeout)
return Response.Data;
-- Send to the server URL a PUT request with Data
-- Put will retry one time if it fails.
function Post
(URL : in String;
Data : in String;
Content_Type : in String := No_Data;
User : in String := No_Data;
Pwd : in String := No_Data;
Proxy : in String := No_Data;
Proxy_User : in String := No_Data;
Proxy_Pwd : in String := No_Data;
Timeouts : in Timeouts_Values := No_Timeout;
Attachments : in AWS.Attachments.List := AWS.Attachments.Empty_List)
return Response.Data;
-- Send to the server URL a POST request with Data
-- Post will retry one time if it fails.
function Post
(URL : in String;
Data : in Ada.Streams.Stream_Element_Array;
Content_Type : in String := No_Data;
User : in String := No_Data;
Pwd : in String := No_Data;
Proxy : in String := No_Data;
Proxy_User : in String := No_Data;
Proxy_Pwd : in String := No_Data;
Timeouts : in Timeouts_Values := No_Timeout;
Attachments : in AWS.Attachments.List := AWS.Attachments.Empty_List)
return Response.Data;
-- Idem as above but with binary data.
function SOAP_Post
(URL : in String;
Data : in String;
SOAPAction : in String;
User : in String := No_Data;
Pwd : in String := No_Data;
Proxy : in String := No_Data;
Proxy_User : in String := No_Data;
Proxy_Pwd : in String := No_Data;
Timeouts : in Timeouts_Values := No_Timeout;
Attachments : in AWS.Attachments.List := AWS.Attachments.Empty_List)
return Response.Data;
-- Send to the server URL a POST request with Data
-- Post will retry one time if it fails.
function Upload
(URL : in String;
Filename : in String;
User : in String := No_Data;
Pwd : in String := No_Data;
Proxy : in String := No_Data;
Proxy_User : in String := No_Data;
Proxy_Pwd : in String := No_Data;
Timeouts : in Timeouts_Values := No_Timeout)
return Response.Data;
-- This is a file upload request. Filename file's content will be send to
-- the server at address URL.
---------------------------------------
-- Keep-Alive client implementation --
---------------------------------------
type HTTP_Connection is limited private;
procedure Create
(Connection : in out HTTP_Connection;
Host : in String;
User : in String := No_Data;
Pwd : in String := No_Data;
Proxy : in String := No_Data;
Proxy_User : in String := No_Data;
Proxy_Pwd : in String := No_Data;
Retry : in Natural := Retry_Default;
Persistent : in Boolean := True;
Timeouts : in Timeouts_Values := No_Timeout;
Server_Push : in Boolean := False;
Certificate : in String := Default.Client_Certificate;
User_Agent : in String := Default.User_Agent);
-- Create a new connection. This is to be used with Keep-Alive client API
-- below. The connection will be tried Retry times if it fails. If
-- persistent is True the connection will remain open otherwise it will be
-- closed after each request. User/Pwd are the server authentication info,
-- Proxy is the name of the proxy server to use, Proxy_USer/Proxy_Pwd are
-- the proxy authentication data. Only Basic authentication is supported
-- from this routine, for Digest authentication see below. Timeouts are
-- the send/receive timeouts for each request. If Server_Push is True the
-- connection will be used to push information to the client.
-- Certificate can be set to specify the certificate filename to use for
-- the secure connection. User_Agent can be overridden to whatever you want
-- the client interface to present itself to the server.
function Get_Certificate
(Connection : in HTTP_Connection)
return AWS.Net.SSL.Certificate.Object;
-- Return the certificate used for the secure connection. If this is not a
-- secure connection, returns Net.SSL.Certificate.Undefined.
procedure Set_WWW_Authentication
(Connection : in out HTTP_Connection;
User : in String;
Pwd : in String;
Mode : in Authentication_Mode);
-- Sets the username password and authentication mode for the Web
-- authentication.
--
-- "Any" mean that user want to use Digest server authentication mode but
-- could use Basic if the server does not support Digest authentication.
--
-- "Basic" mean that client will send basic authentication. "Basic"
-- authentication is send with the first request and is a fast
-- authentication protocol.
--
-- "Digest" mean that the client ask for Digest authentication, it
-- requires that a first unauthorized request be sent to the server. The
-- server will answer "nonce" for the authentication protocol to continue.
procedure Set_Proxy_Authentication
(Connection : in out HTTP_Connection;
User : in String;
Pwd : in String;
Mode : in Authentication_Mode);
-- Sets the username, password and authentication mode for the proxy
-- authentication.
procedure Copy_Cookie
(Source : in HTTP_Connection;
Destination : in out HTTP_Connection);
-- Copy a session Id from connection Source to connection Destination.
-- Allow both connections to share the same user environment. Note that
-- user's environment are thread-safe.
function Read_Until
(Connection : in HTTP_Connection;
Delimiter : in String)
return String;
-- Read data on the Connection until the delimiter (including the
-- delimiter). It can be used to retrieve the next piece of data from a
-- push server. If returned data is empty or does not termintate with the
-- delimiter the server push connection is closed.
procedure Read_Until
(Connection : in out HTTP_Connection;
Delimiter : in String;
Result : in out Ada.Strings.Unbounded.Unbounded_String);
-- Idem as above but returns the result as an Unbounded_String
procedure Read_Some
(Connection : in out HTTP_Connection;
Data : out Ada.Streams.Stream_Element_Array;
Last : out Ada.Streams.Stream_Element_Offset);
-- Reads any available data from the client's connection.
-- If no data available, it will wait for some data to become available or
-- until it timeouts. Returns Last < Data'First when there is no data
-- available in the HTTP response. Connection have to be created with
-- parameter Server_Push => True.
procedure Read
(Connection : in out HTTP_Connection;
Data : out Ada.Streams.Stream_Element_Array;
Last : out Ada.Streams.Stream_Element_Offset);
-- Reads data from the client's connection until Data buffer if filled
-- or it reached the end of the response. Returns Last < Data'Last if
-- there is no more data available in HTTP response. Connection have
-- to be created with parameter Server_Push => True.
procedure Get
(Connection : in out HTTP_Connection;
Result : out Response.Data;
URI : in String := No_Data;
Data_Range : in Content_Range := No_Range);
-- Same as Get above but using a Connection
procedure Head
(Connection : in out HTTP_Connection;
Result : out Response.Data;
URI : in String := No_Data);
-- Same as Head above but using a Connection
procedure Put
(Connection : in out HTTP_Connection;
Result : out Response.Data;
Data : in String;
URI : in String := No_Data);
-- Same as Put above but using a Connection
procedure Post
(Connection : in out HTTP_Connection;
Result : out Response.Data;
Data : in String;
Content_Type : in String := No_Data;
URI : in String := No_Data;
Attachments : in AWS.Attachments.List
:= AWS.Attachments.Empty_List);
-- Same as Post above but using a Connection
procedure Post
(Connection : in out HTTP_Connection;
Result : out Response.Data;
Data : in Ada.Streams.Stream_Element_Array;
Content_Type : in String := No_Data;
URI : in String := No_Data;
Attachments : in AWS.Attachments.List
:= AWS.Attachments.Empty_List);
-- Same as Post above but using a Connection
procedure Upload
(Connection : in out HTTP_Connection;
Result : out Response.Data;
Filename : in String;
URI : in String := No_Data);
-- Same as Upload above but using a Connection
procedure SOAP_Post
(Connection : in HTTP_Connection;
Result : out Response.Data;
SOAPAction : in String;
Data : in String;
Streaming : in Boolean := False;
Attachments : in AWS.Attachments.List := AWS.Attachments.Empty_List);
-- Same as SOAP_Post above but using a Connection
-- Streaming is to be able to parse response XML on the fly,
-- without intermediate buffer.
procedure Close (Connection : in out HTTP_Connection);
-- Close connection, it releases all associated resources
procedure Set_Streaming_Output
(Connection : in out HTTP_Connection;
Value : in Boolean);
pragma Inline (Set_Streaming_Output);
-- Call this routine with Value => True to be able to read data as a
-- stream by using Read and/or Read_Some routines above. Note that
-- Connection is already in Streaming mode if it has been created
-- with Server_Push => True.
procedure Set_Debug (On : in Boolean);
-- Set debug mode on/off. If debug is activated the request header and the
-- server response header will be displayed.
private
-- implementation removed
end AWS.Client;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with AWS.Response;
package AWS.Client.Hotplug is
-- Below are two routines to register/unregister hotplug modules into
-- server. Note that such server must be configured to accept hotplug
-- modules. Password parameter is the clear text paswword, it will be sent
-- encoded. An authorization entry for module Name with Password (and the
-- given URL host for registration) must be found in the server's
-- authorization file. See AWS.Server.Hotplug.Activate.
function Register
(Name : in String;
Password : in String;
Server : in String;
Regexp : in String;
URL : in String)
return Response.Data;
-- Register hotplug module Name into Server with address URL to respond to
-- requests matching Regexp. Server must be a valid URL, http://host:port.
-- If port is not specified the default HTTP port is used.
function Unregister
(Name : in String;
Password : in String;
Server : in String;
Regexp : in String)
return Response.Data;
-- Unregister hotplug module Name responding to Regexp requests from
-- Server. See comment above about Password.
end AWS.Client.Hotplug;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2006 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- The communication protocol uses a light encoding scheme based on the HTTP
-- GET method. For standard, XML based, communication you can use the SOAP
-- protocol. This API can be convenient if you do not plan to build AWS with
-- SOAP support.
with Ada.Strings.Unbounded;
package AWS.Communication is
use Ada.Strings.Unbounded;
type Parameter_Set is array (Positive range <>) of Unbounded_String;
Null_Parameter_Set : constant Parameter_Set;
function Parameters (P1, P2, P3, P4, P5 : in String := "")
return Parameter_Set;
-- Constructor function to help create a Parameter_Set. This function will
-- return a Parameter_Set array containing any parameter with a non emptry
-- string value.
private
-- implementation removed
end AWS.Communication;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2003 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with AWS.Response;
package AWS.Communication.Client is
function Send_Message
(Server : in String;
Port : in Positive;
Name : in String;
Parameters : in Parameter_Set := Null_Parameter_Set)
return Response.Data;
-- Send a message to server with a set of parameters. The destination is
-- server is http://Server:Port, the message name is Name and the set of
-- parameters is to be found into Parameters.
--
-- The complete message format is:
--
-- http://<Server>:<Port>/AWS_Com?HOST=<host>&NAME=<name>
-- &P1=<param1>&P2=<param2>
end AWS.Communication.Client;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with AWS.Response;
generic
type T (<>) is limited private; -- Data type received by this server
type T_Access is access T;
with function Callback
(Server : in String; -- Host name
Name : in String; -- Message name
Context : in T_Access;
Parameters : in Parameter_Set := Null_Parameter_Set)
return Response.Data;
package AWS.Communication.Server is
-- Each instantiation of this package will create an HTTP server waiting
-- for incoming requests at the Port specified in the Start formal
-- parameter. This communication server must be started with the Start
-- procedure and can be stopped with the procedure Shutdown below.
procedure Start (Port : in Positive; Context : in T_Access);
-- Start communication HTTP server listening at the given port
procedure Shutdown;
-- Shutdown the communication HTTP server
end AWS.Communication.Server;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2006 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This package provide an easy way to handle server configuration options.
--
-- If initialization of this package is not done all functions below will
-- return the default value as declared in AWS.Default.
with Ada.Strings.Unbounded;
with AWS.Default;
package AWS.Config is
use Ada.Strings.Unbounded;
type Object is private;
Default_Config : constant Object;
function Get_Current return Object;
-- Returns a configuration record. This is the properties as read in files
-- 'aws.ini' and 'progname.ini'. This configuration object holds only the
-- per-server options.
------------------------
-- Per Server options --
------------------------
------------
-- Server --
------------
function Server_Name (O : in Object) return String;
pragma Inline (Server_Name);
-- This is the name of the server as set by AWS.Server.Start
function Server_Host (O : in Object) return String;
pragma Inline (Server_Host);
-- This is the server host. Can be used if the computer has a more than
-- one IP address. It is possible to have two servers at the same port
-- on the same machine, both being binded on different IP addresses.
function Server_Port (O : in Object) return Positive;
pragma Inline (Server_Port);
-- This is the server port as set by the HTTP object declaration
function Hotplug_Port (O : in Object) return Positive;
pragma Inline (Hotplug_Port);
-- This is the hotplug communication port needed to register and
-- un-register an hotplug module.
function Session (O : in Object) return Boolean;
pragma Inline (Session);
-- Returns True if the server session is activated
function Case_Sensitive_Parameters (O : in Object) return Boolean;
pragma Inline (Case_Sensitive_Parameters);
-- HTTP parameters are case sensitive
----------------
-- Connection --
----------------
function Max_Connection (O : in Object) return Positive;
pragma Inline (Max_Connection);
-- This is the max simultaneous connections as set by the HTTP object
-- declaration.
function Free_Slots_Keep_Alive_Limit (O : in Object) return Natural;
pragma Inline (Free_Slots_Keep_Alive_Limit);
-- The minimum number of free slots where keep-alive connections are still
-- enabled. After this limit no more keep-alive connection will be
-- accepted by the server. This parameter must be used for heavy-loaded
-- servers to make sure the server will never run out of slots. This limit
-- must be less than Max_Connection.
function Accept_Queue_Size (O : in Object) return Positive;
pragma Inline (Accept_Queue_Size);
-- This is the size of the queue for the incoming requests. Higher this
-- value will be and less "connection refused" will be reported to the
-- client.
function Line_Stack_Size (O : in Object) return Positive;
pragma Inline (Line_Stack_Size);
-- HTTP lines stack size
----------
-- Data --
----------
function WWW_Root (O : in Object) return String;
pragma Inline (WWW_Root);
-- This is the root directory name for the server. This variable is not
-- used internally by AWS. It is supposed to be used by the callback
-- procedures who want to retrieve physical objects (images, Web
-- pages...). The default value is the current working directory.
function Upload_Directory (O : in Object) return String;
pragma Inline (Upload_Directory);
-- This point to the directory where uploaded files will be stored. The
-- directory returned will end with a directory separator.
function Directory_Browser_Page (O : in Object) return String;
pragma Inline (Directory_Browser_Page);
-- Filename for the directory browser template page
---------
-- Log --
---------
function Log_File_Directory (O : in Object) return String;
pragma Inline (Log_File_Directory);
-- This point to the directory where log files will be written. The
-- directory returned will end with a directory separator.
function Log_Filename_Prefix (O : in Object) return String;
pragma Inline (Log_Filename_Prefix);
-- This is the prefix to use for the log filename
function Log_Split_Mode (O : in Object) return String;
pragma Inline (Log_Split_Mode);
-- This is split mode for the log file. Possible values are : Each_Run,
-- Daily, Monthly and None. Any other values will raise an exception.
function Error_Log_Filename_Prefix (O : in Object) return String;
pragma Inline (Error_Log_Filename_Prefix);
-- This is the prefix to use for the log filename.
function Error_Log_Split_Mode (O : in Object) return String;
pragma Inline (Error_Log_Split_Mode);
-- This is split mode for the log file. Possible values are : Each_Run,
-- Daily, Monthly and None. Any other values will raise an exception.
------------
-- Status --
------------
function Admin_URI (O : in Object) return String;
pragma Inline (Admin_URI);
-- This is the name of the admin server page as set by AWS.Server.Start.
-- It is also known as the status page.
function Status_Page (O : in Object) return String;
pragma Inline (Status_Page);
-- Filename for the status template page
function Up_Image (O : in Object) return String;
pragma Inline (Up_Image);
-- Filename for the up arrow image used in the status page
function Down_Image (O : in Object) return String;
pragma Inline (Down_Image);
-- Filename for the down arrow image used in the status page
function Logo_Image (O : in Object) return String;
pragma Inline (Logo_Image);
-- Filename for the AWS logo image used in the status page
--------------
-- Timeouts --
--------------
function Cleaner_Wait_For_Client_Timeout (O : in Object) return Duration;
pragma Inline (Cleaner_Wait_For_Client_Timeout);
-- Number of seconds to timout on waiting for a client request.
-- This is a timeout for regular cleaning task.
function Cleaner_Client_Header_Timeout (O : in Object) return Duration;
pragma Inline (Cleaner_Client_Header_Timeout);
-- Number of seconds to timout on waiting for client header.
-- This is a timeout for regular cleaning task.
function Cleaner_Client_Data_Timeout (O : in Object) return Duration;
pragma Inline (Cleaner_Client_Data_Timeout);
-- Number of seconds to timout on waiting for client message body.
-- This is a timeout for regular cleaning task.
function Cleaner_Server_Response_Timeout (O : in Object) return Duration;
pragma Inline (Cleaner_Server_Response_Timeout);
-- Number of seconds to timout on waiting for client to accept answer.
-- This is a timeout for regular cleaning task.
function Force_Wait_For_Client_Timeout (O : in Object) return Duration;
pragma Inline (Force_Wait_For_Client_Timeout);
-- Number of seconds to timout on waiting for a client request.
-- This is a timeout for urgent request when resources are missing.
function Force_Client_Header_Timeout (O : in Object) return Duration;
pragma Inline (Force_Client_Header_Timeout);
-- Number of seconds to timout on waiting for client header.
-- This is a timeout for urgent request when resources are missing.
function Force_Client_Data_Timeout (O : in Object) return Duration;
pragma Inline (Force_Client_Data_Timeout);
-- Number of seconds to timout on waiting for client message body.
-- This is a timeout for urgent request when resources are missing.
function Force_Server_Response_Timeout (O : in Object) return Duration;
pragma Inline (Force_Server_Response_Timeout);
-- Number of seconds to timout on waiting for client to accept answer.
-- This is a timeout for urgent request when resources are missing.
function Send_Timeout (O : in Object) return Duration;
pragma Inline (Send_Timeout);
-- Number of seconds to timeout when sending chunck of data
function Receive_Timeout (O : in Object) return Duration;
pragma Inline (Receive_Timeout);
-- Number of seconds to timeout when receiving chunck of data.
--------------
-- Security --
--------------
function Check_URL_Validity (O : in Object) return Boolean;
pragma Inline (Check_URL_Validity);
-- Server have to check URI for validity. For example it checks that an
-- URL does not reference a resource above the Web root.
function Security (O : in Object) return Boolean;
pragma Inline (Security);
-- Is the server working through th SSL
function Certificate (O : in Object) return String;
pragma Inline (Certificate);
-- Returns the certificate to be used with the secure server. Returns the
-- empty string if the server is not a secure one.
function Key (O : in Object) return String;
pragma Inline (Key);
-- Returns the key to be used with the secure server. Returns the
-- empty string if the server is not a secure one.
function Security_Mode (O : in Object) return String;
pragma Inline (Security_Mode);
-- Returns the security mode to be used with the secure server. Returns the
-- empty string if the server is not a secure one.
function Exchange_Certificate (O : in Object) return Boolean;
pragma Inline (Exchange_Certificate);
-- Returns True if the client is requested to send its certificate to the
-- server. Note that this option must not be used if the client is a Web
-- Browser.
-------------------------
-- Per Process options --
-------------------------
function Session_Cleanup_Interval return Duration;
pragma Inline (Session_Cleanup_Interval);
-- Number of seconds between each run of the cleaner task to remove
-- obsolete session data.
function Session_Lifetime return Duration;
pragma Inline (Session_Lifetime);
-- Number of seconds to keep a session if not used. After this period the
-- session data is obsoleted and will be removed during next cleanup.
function Transient_Cleanup_Interval return Duration;
pragma Inline (Transient_Cleanup_Interval);
-- Number of seconds between each run of the cleaner task to remove
-- transient pages.
function Transient_Lifetime return Duration;
pragma Inline (Transient_Lifetime);
-- Number of seconds to keep a transient page. After this period the
-- transient page is obsoleted and will be removed during next cleanup.
function Max_Concurrent_Download return Positive;
pragma Inline (Max_Concurrent_Download);
-- Number of maximum concurrent download supported by the download manager
-- service.
private
-- implementation removed
end AWS.Config;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- Handle .ini style configuration file. In this file each option is on one
-- line. The first word is the option name and the second one is the option
-- value.
package AWS.Config.Ini is
procedure Read
(Config : in out Object;
Filename : in String);
-- Read Filename and update the configuration object with the
-- options read from it. Raises Ada.Text_IO.Name_Error if Filename does
-- not exist.
end AWS.Config.Ini;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2006 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This package can be used to Set any AWS parameters.
package AWS.Config.Set is
------------------------
-- Per Server Options --
------------------------
------------
-- Server --
------------
procedure Server_Name (O : in out Object; Value : in String);
-- This is the name of the server as set by AWS.Server.Start
procedure Server_Host (O : in out Object; Value : in String);
-- This is the server host as set by the HTTP object declaration
procedure Server_Port (O : in out Object; Value : in Positive);
-- This is the server port as set by the HTTP object declaration
procedure Hotplug_Port (O : in out Object; Value : in Positive);
-- This is the hotplug communication port needed to register and
-- un-register an hotplug module.
procedure Session (O : in out Object; Value : in Boolean);
-- Enable session handling is Value is True
procedure Case_Sensitive_Parameters (O : in out Object; Value : in Boolean);
-- Parameters are handled with the case if Value is True
procedure Line_Stack_Size (O : in out Object; Value : in Positive);
-- HTTP lines stack size
----------------
-- Connection --
----------------
procedure Max_Connection (O : in out Object; Value : in Positive);
-- This is the max simultaneous connections as set by the HTTP object
-- declaration.
procedure Free_Slots_Keep_Alive_Limit
(O : in out Object;
Value : in Natural);
-- The minimum number of free slots where keep-alive connections are still
-- enabled. After this limit no more keep-alive connection will be
-- accepted by the server. This parameter must be used for heavy-loaded
-- servers to make sure the server will never run out of slots. This limit
-- must be less than Max_Connection.
procedure Accept_Queue_Size (O : in out Object; Value : in Positive);
-- This is the size of the queue for the incoming requests. Higher this
-- value will be and less "connection refused" will be reported to the
-- client.
----------
-- Data --
----------
procedure WWW_Root (O : in out Object; Value : in String);
-- This is the root directory name for the server. This variable is not
-- used internally by AWS. It is supposed to be used by the callback
-- procedures who want to retrieve physical objects (images, Web
-- pages...). The default value is the current working directory.
procedure Upload_Directory (O : in out Object; Value : in String);
-- This point to the directory where uploaded files will be stored. The
-- directory returned will end with a directory separator.
procedure Directory_Browser_Page (O : in out Object; Value : in String);
-- Filename for the directory browser template page.
---------
-- Log --
---------
procedure Log_File_Directory (O : in out Object; Value : in String);
-- This point to the directory where log files will be written. The
-- directory returned will end with a directory separator.
procedure Log_Filename_Prefix (O : in out Object; Value : in String);
-- This is the prefix to use for the log filename.
procedure Log_Split_Mode (O : in out Object; Value : in String);
-- This is split mode for the log file. Possible values are : Each_Run,
-- Daily, Monthly and None. Any other values will raise an exception.
procedure Error_Log_Filename_Prefix (O : in out Object; Value : in String);
-- This is the prefix to use for the log filename.
procedure Error_Log_Split_Mode (O : in out Object; Value : in String);
-- This is split mode for the log file. Possible values are : Each_Run,
-- Daily, Monthly and None. Any other values will raise an exception.
------------
-- Status --
------------
procedure Admin_URI (O : in out Object; Value : in String);
-- This is the name of the admin server page as set by AWS.Server.Start
procedure Status_Page (O : in out Object; Value : in String);
-- Filename for the status template page
procedure Up_Image (O : in out Object; Value : in String);
-- Filename for the up arrow image used in the status page
procedure Down_Image (O : in out Object; Value : in String);
-- Filename for the down arrow image used in the status page
procedure Logo_Image (O : in out Object; Value : in String);
-- Filename for the AWS logo image used in the status page
--------------
-- Timeouts --
--------------
procedure Cleaner_Wait_For_Client_Timeout
(O : in out Object;
Value : in Duration);
-- Number of seconds to timout on waiting for a client request.
-- This is a timeout for regular cleaning task.
procedure Cleaner_Client_Header_Timeout
(O : in out Object;
Value : in Duration);
-- Number of seconds to timout on waiting for client header.
-- This is a timeout for regular cleaning task.
procedure Cleaner_Client_Data_Timeout
(O : in out Object;
Value : in Duration);
-- Number of seconds to timout on waiting for client message body.
-- This is a timeout for regular cleaning task.
procedure Cleaner_Server_Response_Timeout
(O : in out Object;
Value : in Duration);
-- Number of seconds to timout on waiting for client to accept answer.
-- This is a timeout for regular cleaning task.
procedure Force_Wait_For_Client_Timeout
(O : in out Object;
Value : in Duration);
-- Number of seconds to timout on waiting for a client request.
-- This is a timeout for urgent request when resources are missing.
procedure Force_Client_Header_Timeout
(O : in out Object;
Value : in Duration);
-- Number of seconds to timout on waiting for client header.
-- This is a timeout for urgent request when resources are missing.
procedure Force_Client_Data_Timeout
(O : in out Object;
Value : in Duration);
-- Number of seconds to timout on waiting for client message body.
-- This is a timeout for urgent request when resources are missing.
procedure Force_Server_Response_Timeout
(O : in out Object;
Value : in Duration);
-- Number of seconds to timout on waiting for client to accept answer.
-- This is a timeout for urgent request when resources are missing.
procedure Send_Timeout (O : in out Object; Value : in Duration);
-- Number of seconds to timeout when sending chunck of data.
procedure Receive_Timeout (O : in out Object; Value : in Duration);
-- Number of seconds to timeout when receiving chunck of data.
--------------
-- Security --
--------------
procedure Check_URL_Validity (O : in out Object; Value : in Boolean);
-- Set the check URL validity flag. If True an URL that reference a
-- resource above the Web root will be rejected.
procedure Security (O : in out Object; Value : in Boolean);
-- Enable security (HTTPS/SSL) if Value is True
procedure Certificate (O : in out Object; Filename : in String);
-- Set the certificate to be used with the secure server
procedure Key (O : in out Object; Filename : in String);
-- Set the key to be used with the secure server
procedure Security_Mode (O : in out Object; Mode : in String);
-- Set the security mode to be used with the secure server. Only values
-- from AWS.Net.SSL.Method can be used.
procedure Exchange_Certificate (O : in out Object; Value : in Boolean);
-- Set to True to request the client to send its certificate to the server
-------------------------
-- Per Process Options --
-------------------------
procedure Session_Cleanup_Interval (Value : in Duration);
-- Number of seconds between each run of the cleaner task to remove
-- obsolete session data.
procedure Session_Lifetime (Value : in Duration);
-- Number of seconds to keep a session if not used. After this period the
-- session data is obsoleted and will be removed during next cleanup.
procedure Transient_Cleanup_Interval (Value : in Duration);
-- Number of seconds between each run of the cleaner task to remove
-- transient pages.
procedure Transient_Lifetime (Value : in Duration);
-- Number of seconds to keep a transient page. After this period the
-- transient page is obsoleted and will be removed during next cleanup.
procedure Parameter
(Config : in out Object;
Name : in String;
Value : in String;
Error_Context : in String := "");
-- Set one of the AWS HTTP per server parameters. Raises Constraint_Error
-- in case of wrong parameter name or wrong parameter value.
-- Error_Context may contain additional information about the parameter.
-- This message will be added to the Constraint_Error exception.
-- One way to use Error_Context is to set it with information about
-- where this parameter come form.
procedure Parameter
(Name : in String;
Value : in String;
Error_Context : in String := "");
-- Set one of the AWS HTTP per process parameters. See description above
end AWS.Config.Set;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Strings.Unbounded;
with AI302.Containers.Indefinite_Hashed_Maps;
with AI302.Strings.Hash;
with AI302.Containers.Vectors;
with AI302.Containers.Indefinite_Vectors;
package AWS.Containers.Tables is
type Table_Type is tagged private;
type Element (Name_Length, Value_Length : Natural) is record
Name : String (1 .. Name_Length);
Value : String (1 .. Value_Length);
end record;
-- Data type to store name/value pair retrieved from a Table_Type
Null_Element : constant Element;
type VString_Array is array (Positive range <>)
of Ada.Strings.Unbounded.Unbounded_String;
function Count (Table : in Table_Type) return Natural;
-- Returns the number of item in Table
function Name_Count (Table : in Table_Type) return Natural;
-- Returns the number of unique key name in Table
function Count (Table : in Table_Type; Name : in String) return Natural;
-- Returns the number of value for Key Name in Table. It returns
-- 0 if Key does not exist.
function Exist (Table : in Table_Type; Name : in String) return Boolean;
-- Returns True if Key exist in Table
function Get
(Table : in Table_Type;
Name : in String;
N : in Positive := 1)
return String;
-- Returns the Nth value associated with Key into Table. Returns
-- the emptry string if key does not exist.
function Get_Name
(Table : in Table_Type;
N : in Positive := 1)
return String;
-- Returns the Nth Name in Table or the empty string if there is
-- no parameter with this number.
function Get_Value
(Table : in Table_Type;
N : in Positive := 1)
return String;
-- Returns the Nth Value in Table or the empty string if there is
-- no parameter with this number.
function Get
(Table : in Table_Type;
N : in Positive)
return Element;
-- Returns N'th name/value pair. Returns Null_Element if there is no
-- such item in the table.
function Get_Names
(Table : in Table_Type;
Sort : in Boolean := False)
return VString_Array;
-- Returns array of unique key names. If Sort is True, the returned names
-- array is sorted in alphabetical order. This is of course slightly
-- slower than returning unsorted results.
function Get_Values
(Table : in Table_Type;
Name : in String)
return VString_Array;
-- Returns all values for the specified parameter key name.
private
-- implementation removed
end AWS.Containers.Tables;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This package contains the default AWS configuration values. These values
-- are used to initialize the configuration objects. Users should not modify
-- the values here, see AWS.Config.* API.
package AWS.Default is
pragma Pure;
-- All times are in seconds
One_Hour : constant := 3_600.0;
One_Minute : constant := 60.0;
Eight_Hours : constant := 8.0 * One_Hour;
Three_Hours : constant := 3.0 * One_Hour;
Three_Minutes : constant := 3.0 * One_Minute;
Five_Minutes : constant := 5.0 * One_Minute;
Ten_Minutes : constant := 10.0 * One_Minute;
-- Server configuration
Server_Name : constant String := "AWS Module";
WWW_Root : constant String := "./";
Admin_URI : constant String := "";
Server_Port : constant := 8080;
Hotplug_Port : constant := 8888;
Max_Connection : constant := 5;
Free_Slots_Keep_Alive_Limit : constant := 1;
Accept_Queue_Size : constant := 64;
Upload_Directory : constant String := "";
Line_Stack_Size : constant := 16#150_000#;
Case_Sensitive_Parameters : constant Boolean := True;
Max_Concurrent_Download : constant := 25;
-- Client configuration
User_Agent : constant String
:= "AWS (Ada Web Server) v" & Version;
-- Log values. The character '@' in the error log filename prefix is
-- replaced by the running program name.
Log_File_Directory : constant String := "./";
Log_Split_Mode : constant String := "NONE";
Log_Filename_Prefix : constant String := "@";
Error_Log_Split_Mode : constant String := "NONE";
Error_Log_Filename_Prefix : constant String := "@_error";
-- Session
Session : constant Boolean := False;
Session_Cleanup_Interval : constant Duration := Five_Minutes;
Session_Lifetime : constant Duration := Ten_Minutes;
-- Transient pages
Transient_Cleanup_Interval : constant Duration := Three_Minutes;
Transient_Lifetime : constant Duration := Five_Minutes;
-- Server's timeouts
Cleaner_Wait_For_Client_Timeout : constant Duration := 80.0;
Cleaner_Client_Header_Timeout : constant Duration := 20.0;
Cleaner_Client_Data_Timeout : constant Duration := Eight_Hours;
Cleaner_Server_Response_Timeout : constant Duration := Eight_Hours;
Force_Wait_For_Client_Timeout : constant Duration := 2.0;
Force_Client_Header_Timeout : constant Duration := 3.0;
Force_Client_Data_Timeout : constant Duration := Three_Hours;
Force_Server_Response_Timeout : constant Duration := Three_Hours;
Send_Timeout : constant Duration := 40.0;
Receive_Timeout : constant Duration := 30.0;
-- Directory template
Directory_Browser_Page : constant String := "aws_directory.thtml";
-- Status page
Status_Page : constant String := "aws_status.thtml";
Up_Image : constant String := "aws_up.png";
Down_Image : constant String := "aws_down.png";
Logo_Image : constant String := "aws_logo.png";
-- Security
Security : constant Boolean := False;
Security_Mode : constant String := "SSLv23";
Certificate : constant String := "cert.pem";
Key : constant String := "";
Client_Certificate : constant String := "client.pem";
Exchange_Certificate : constant Boolean := False;
Check_URL_Validity : constant Boolean := True;
end AWS.Default;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2003 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This package provides a service to build Callbacks which can support
-- user's data. It is possible to build a new dispatcher by inheriting the
-- handler type and to provides the Dispatch routine.
with Ada.Finalization;
with AWS.Response;
with AWS.Status;
package AWS.Dispatchers is
type Handler is abstract new Ada.Finalization.Controlled with private;
procedure Initialize (Dispatcher : in out Handler);
procedure Adjust (Dispatcher : in out Handler);
procedure Finalize (Dispatcher : in out Handler);
-- Initialize/Adjust/Finalize is doing the reference counting, children
-- should just call these routines if possible. It is possible to know if
-- no more object are referenced by calling Ref_Counter below.
function Dispatch
(Dispatcher : in Handler;
Request : in Status.Data)
return Response.Data is abstract;
-- Call the appropriate inherited dispatcher
function Ref_Counter (Dispatcher : in Handler) return Natural;
-- Returns the reference counter for Handler. If 0 is returned then this
-- object is not referenced anymore, it is safe to deallocate ressources.
type Handler_Class_Access is access all Handler'Class;
procedure Free (Dispatcher : in out Handler_Class_Access);
pragma Inline (Free);
-- Release memory associated with the dispatcher
private
-- implementation removed
end AWS.Dispatchers;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2001 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- Dispatch on a Callback procedure.
with AWS.Dispatchers;
with AWS.Response;
with AWS.Status;
package AWS.Dispatchers.Callback is
type Handler is new Dispatchers.Handler with private;
-- This is a simple wrapper around standard callback procedure (access to
-- function). It will be used to build dispatchers services and for the
-- main server callback.
function Create
(Callback : in Response.Callback)
return Handler;
pragma Inline (Create);
-- Build a dispatcher for the specified callback.
function Dispatch
(Dispatcher : in Handler;
Request : in Status.Data)
return Response.Data;
private
-- implementation removed
end AWS.Dispatchers.Callback;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2003-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Exceptions;
with AWS.Log;
with AWS.Response;
with AWS.Status;
package AWS.Exceptions is
type Data is record
Fatal : Boolean;
-- If True it means that we go a fatal error. The slot will be
-- terminated so AWS will loose one of it's simultaneous connection.
-- This is clearly an AWS internal error that should be fixed in AWS.
Slot : Positive;
-- The failing slot number
Request : Status.Data;
-- The complete request information that was served when the slot has
-- failed. This variable is set only when Fatal is False.
end record;
type Unexpected_Exception_Handler is access
procedure (E : in Ada.Exceptions.Exception_Occurrence;
Log : in out AWS.Log.Object;
Error : in Data;
Answer : in out Response.Data);
-- Unexpected exception handler can be set to monitor server errors.
-- Answer can be set with the answer to send back to the client's
-- browser. Note that this is possible only for non fatal error
-- (i.e. Error.Fatal is False).
-- Log is the error log object for the failing server, it can be used
-- to log user's information (if error log is activated for this
-- server). Note that the server will have already logged information
-- about the problem.
end AWS.Exceptions;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with AWS.Containers.Tables;
with AWS.Net;
package AWS.Headers is
type List is new AWS.Containers.Tables.Table_Type with private;
-- Header container. This set handles a set of HTTP header line, each new
-- header line is inserted at the end of the list (see AWS.Headers.Set API)
-- and can be retrieved by the following services. Header lines are
-- numbered from 1 to N.
subtype VString_Array is AWS.Containers.Tables.VString_Array;
subtype Element is AWS.Containers.Tables.Element;
Format_Error : exception;
-- Raised when header line format is wrong
procedure Send_Header
(Socket : in Net.Socket_Type'Class;
Headers : in List);
-- Send all header lines in Headers list to the socket
function Get_Line
(Headers : in List;
N : in Positive)
return String;
-- Returns the Nth header line in Headers container. The returned value is
-- formatted as a correct header line:
--
-- message-header = field-name ":" [ field-value ]
--
-- That is the header-name followed with character ':' and the header
-- values. If there is less than Nth header line it returns the empty
-- string. Note that this routine does returns all header line values, for
-- example it would return:
--
-- Content_Type: multipart/mixed; boundary="0123_The_Boundary_Value_"
--
-- For a file upload content type header style.
function Get_Values
(Headers : in List;
Name : in String)
return String;
-- Returns all values for the specified header field Name in a
-- comma-separated string. This format is conformant to [RFC 2616 - 4.2]
-- (see last paragraph).
function Length (Headers : in AWS.Headers.List) return Natural;
-- Returns the length (in bytes) of the header, including the ending
-- empty line.
-- See AWS.Containers.Tables for inherited routines.
private
-- implementation removed
end AWS.Headers;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2002-2003 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Strings.Unbounded;
package AWS.Headers.Values is
use Ada.Strings.Unbounded;
-- Data represent a token from an header line. There is two kinds of
-- token, either named or un-named.
--
-- Content-Type: xyz boundary="uvt"
--
-- Here xyz is an un-named value and uvt a named value the name is
-- boundary.
type Data (Named_Value : Boolean := True) is record
Value : Unbounded_String;
case Named_Value is
when True =>
Name : Unbounded_String;
when False =>
null;
end case;
end record;
type Set is array (Positive range <>) of Data;
-----------
-- Parse --
-----------
generic
with procedure Value
(Item : in String;
Quit : in out Boolean);
-- Called for every un-named value read from the header value
with procedure Named_Value
(Name : in String;
Value : in String;
Quit : in out Boolean);
-- Called for every named value read from the header value
procedure Parse (Header_Value : in String);
-- Look for un-named values and named ones (Name="Value" pairs) in the
-- header line, and call appropriate routines when found. Quit is set to
-- False before calling Value or Named_Value, the parsing can be stopped
-- by setting Quit to True.
-------------------
-- Split / Index --
-------------------
function Split (Header_Value : in String) return Set;
-- Returns a Set with each named and un-named values splited from Data.
function Index
(Set : in Values.Set;
Name : in String;
Case_Sensitive : in Boolean := True)
return Natural;
-- Returns index for Name in the set or 0 if Name not found.
-- If Case_Sensitive is false the find is case_insensitive.
---------------------------
-- Other search routines --
---------------------------
function Search
(Header_Value : in String;
Name : in String;
Case_Sensitive : in Boolean := True)
return String;
-- Returns Value for Name in Header_Value or the empty string if Name not
-- found. If Case_Sensitive is False the search is case insensitive.
function Get_Unnamed_Value
(Header_Value : in String;
N : in Positive := 1)
return String;
-- Returns N-th un-named value from Header_Value.
function Unnamed_Value_Exists
(Header_Value : in String;
Value : in String;
Case_Sensitive : in Boolean := True)
return Boolean;
-- Returns True if the unnamed value specified has been found in
-- Header_Value.
end AWS.Headers.Values;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2002-2003 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Strings.Unbounded;
with AWS.Containers.Key_Value;
with AWS.Net;
with AWS.Utils;
package AWS.Jabber is
type Server is limited private;
-- This is the Jabber server connection. This object is initialized by
-- Connect below and is used with all services.
Default_Port : constant := 5222;
-- Standard Jabber Server default port is 5222. The SSL based connection
-- port is 5223 but this is not supported by this API.
Server_Error : exception;
-- Raised by any routine below when an server or protocol error occurs. A
-- message is attached to the exception, this correspond to the <error>
-- XML protocol tag if present.
procedure Connect
(Server : in out Jabber.Server;
Host : in String;
User : in String;
Password : in String;
Port : in Positive := Default_Port);
-- Connect to a Jabber server Host:Port using User/Password account. It
-- returns the Server object which can be used with services below.
procedure Close (Server : in out Jabber.Server);
-- Close the connection with the Jabber server.
procedure Send_Message
(Server : in Jabber.Server;
JID : in String;
Subject : in String;
Content : in String);
-- Send a message to user JID (Jabber ID) via the specified Server. The
-- message is composed of Subject and a body (Content).
type Presence_Status
is (Offline, Available, Chat, Away, Extended_Away, Do_Not_Disturb);
procedure Check_Presence
(Server : in Jabber.Server;
JID : in String;
Status : out Presence_Status);
-- Returns the presence status for JID.
private
-- implementation removed
end AWS.Jabber;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2003 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- $Id: aws-ldap-client.ads,v 1.10 2004/11/10 13:53:22 obry Exp $:
-- Provides an API to read information from an LDAP server. This API does not
-- cover modifing, adding or deleting information into the server. It is a
-- thick binding, see AWS.LDAP.Thin for a thin binding.
--
-- This API has been tested on Windows and Linux (OpenLDAP).
with Ada.Exceptions;
with Ada.Strings.Unbounded;
with AWS.LDAP.Thin;
package AWS.LDAP.Client is
use Ada.Strings.Unbounded;
Default_Port : constant Positive := Positive (Thin.LDAP_PORT);
subtype Directory is Thin.LDAP_Type;
-- An LDAP directory. This object must be initialized with Init and Bind
-- and terminated with Unbind.
subtype LDAP_Message is Thin.LDAPMessage;
-- An LDAP message or set of messages. There is a set of iterators to
-- access all messages returned by the search procedure.
subtype BER_Element is Thin.BerElement;
-- An iterator structure. Initialized and used to iterate through all the
-- attributes for a specific message.
Null_Directory : constant Directory := Thin.Null_LDAP_Type;
Null_LDAP_Message : constant LDAP_Message := Thin.Null_LDAPMessage;
type Scope_Type is
(LDAP_Scope_Default, LDAP_Scope_Base,
LDAP_Scope_One_Level, LDAP_Scope_Subtree);
-- LDAP scope for the search
type String_Set is array (Positive range <>) of Unbounded_String;
-- A set of strings, this is used to map C array of strings (a char **)
-- from the thin binding.
Null_Set : constant String_Set;
function Get_Error
(E : in Ada.Exceptions.Exception_Occurrence)
return Thin.Return_Code;
-- Returns the error code in the LDAP_Error exception occurence E. Returns
-- Think.LDAP_SUCCESS if no error code has been found.
----------------
-- Attributes --
----------------
subtype Attribute_Set is String_Set;
-- Used to represent the set of attributes to retrieve from the LDAP server
function Attributes
(S1, S2, S3, S4, S5, S6, S7, S8, S9, S10 : in String := "")
return Attribute_Set;
-- Returns a String_Set object containing only none empty values. Values
-- for S1 through S10 must be set in the order of the parameters. This is
-- an helper routine to help building an array of unbounded string from a
-- set of string.
function uid (Val : in String := "") return String;
-- Returns the uid attribute, if Val is specified "=<Val>" is
-- added after the attribute name.
function givenName (Val : in String := "") return String;
-- Returns the given name (firstname) attribute. if Val is specified
-- "=<Val>" is added after the attribute name.
function cn (Val : in String := "") return String;
function commonName (Val : in String := "") return String renames cn;
-- Returns the common Name attribute, if Val is specified "=<Val>" is
-- added after the attribute name.
function sn (Val : in String := "") return String;
function surname (Val : in String := "") return String renames sn;
-- Returns the surname attribute, if Val is specified "=<Val>" is
-- added after the attribute name.
function telephoneNumber (Val : in String := "") return String;
-- Returns the phone number. if Val is specified "=<Val>" is
-- added after the attribute name. Val must use the international notation
-- according to CCITT E.123.
function mail (Val : in String := "") return String;
-- Returns the mail attribute. if Val is specified "=<Val>" is added after
-- the attribute name.
function l (Val : in String := "") return String;
function localityName (Val : in String := "") return String renames l;
-- Returns the locality attribute, if Val is specified "=<Val>" is
-- added after the attribute name.
function o (Val : in String := "") return String;
function organizationName (Val : in String := "") return String renames o;
-- Returns the organization attribute, if Val is specified "=<Val>" is
-- added after the attribute name.
function ou (Val : in String := "") return String;
function organizationalUnitName (Val : in String := "") return String
renames ou;
-- Returns the organizational unit attribute, if Val is specified "=<Val>"
-- is added after the attribute name.
function st (Val : in String := "") return String;
function stateOrProvinceName (Val : in String := "") return String
renames st;
-- Returns the state name attribute, if Val is specified "=<Val>" is
-- added after the attribute name.
function c (Val : in String := "") return String;
function countryName (Val : in String) return String renames c;
-- Returns country code attribute, if Val is specified "=<Val>" is
-- added after the attribute name. Val must be a two-letter ISO 3166
-- country code.
function dc (Val : in String := "") return String;
function domainComponent (Val : in String := "") return String renames dc;
-- Returns a domain component attribute, if Val is specified "=<Val>" is
-- added after the attribute name.
function Cat
(S1, S2, S3, S4, S5, S6, S7, S8, S9, S10 : in String := "")
return String;
-- Returns a string object containing only none empty values. Values for
-- S1 through S10 must be set in the order of the parameters. All values
-- are catenated and separated with a coma. This is an helper routine to
-- help building a filter objects or base distinguished name.
----------------
-- Initialize --
----------------
function Init
(Host : in String;
Port : in Positive := Default_Port)
return Directory;
-- Must be called first, to initialize the LDAP communication with the
-- server. Returns Null_Directory in case of error.
procedure Bind
(Dir : in out Directory;
Login : in String;
Password : in String);
-- Bind to the server by providing a login and password
procedure Unbind (Dir : in out Directory);
-- Must be called to release resources associated with the Directory. Does
-- nothing if Dir is Null_Directory.
function Is_Open (Dir : in Directory) return Boolean;
-- Returns True if the directory has correctly been initialized and binded
-- with the server.
------------
-- Search --
------------
function Search
(Dir : in Directory;
Base : in String;
Filter : in String;
Scope : in Scope_Type := LDAP_Scope_Default;
Attrs : in Attribute_Set := Null_Set;
Attrs_Only : in Boolean := False)
return LDAP_Message;
-- Do a search on the LDAP server. Base is the name of the database.
-- Filter can be used to retrieve a specific set of entries. Attrs specify
-- the set of attributes to retrieve. If Attrs_Only is set to True only
-- the types are returned. Raises LDAP_Error in case of problem.
---------------
-- Iterators --
---------------
function First_Entry
(Dir : in Directory;
Chain : in LDAP_Message)
return LDAP_Message;
-- Returns the first entry (or Node) for the search result (Chain).
function Next_Entry
(Dir : in Directory;
Entries : in LDAP_Message)
return LDAP_Message;
-- Returns next entry (or Node) for Entries.
function Count_Entries
(Dir : in Directory;
Chain : in LDAP_Message)
return Natural;
-- Returns the number of entries in the search result (Chain).
procedure Free (Chain : in LDAP_Message);
-- Release memory associated with the search result Chain.
generic
with procedure Action
(Node : in LDAP_Message;
Quit : in out Boolean);
procedure For_Every_Entry (Dir : in Directory; Chain : in LDAP_Message);
-- This iterator call Action for each entry (Node) found in the LDAP result
-- set as returned by the search procedure. Quit can be set to True to
-- stop iteration; its initial value is False.
function First_Attribute
(Dir : in Directory;
Node : in LDAP_Message;
BER : access BER_Element)
return String;
-- Returns the first attribute for the entry. It initialize an iteraror
-- (the BER structure). The BER structure must be released after used by
-- using the Free routine below.
function Next_Attribute
(Dir : in Directory;
Node : in LDAP_Message;
BER : in BER_Element)
return String;
-- Returns next attribute for iterator BER. First_Attribute must have been
-- called to initialize this iterator.
procedure Free (BER : in BER_Element);
-- Releases memory associated with the BER structure which has been
-- allocated by the First_Attribute routine.
generic
with procedure Action
(Attribute : in String;
Quit : in out Boolean);
procedure For_Every_Attribute
(Dir : in Directory;
Node : in LDAP_Message);
-- This iterator call action for each attribute found in the LDAP Entries
-- Node as returned by First_Entry or Next_Entry. Quit can be set to True
-- to stop iteration; its initial value is False.
---------------
-- Accessors --
---------------
function Get_DN
(Dir : in Directory;
Node : in LDAP_Message)
return String;
-- Returns the distinguished name for the given entry Node.
function DN2UFN (DN : in String) return String;
-- Returns a distinguished name converted to a user-friendly format
function Get_Values
(Dir : in Directory;
Node : in LDAP_Message;
Target : in String)
return String_Set;
-- Returns the list of values of a given attribute (Target) found in entry
-- Node.
function Explode_DN
(DN : in String;
No_Types : in Boolean := True)
return String_Set;
-- Breaks up an entry name into its component parts. If No_Types is set to
-- True the types information ("cn=") won't be included.
private
-- implementation removed
end AWS.LDAP.Client;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2005 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This package handle the logging facility for AWS. The log file is named
-- '<progname>-Y-M-D.log' and is written by default in the directory where
-- the server is launched, see configuration file.
--
-- Note that this package is used internally by AWS to log server requests
-- but it can also be used by users to handle application's log.
--
-- This package is thread safe.
with Ada.Finalization;
with Ada.Text_IO;
with Ada.Strings.Unbounded;
with AWS.Status;
with AWS.Response;
with AWS.Messages;
with AWS.Utils;
package AWS.Log is
type Object is limited private;
-- A log object. It must be activated by calling Start below
type Split_Mode is (None, Each_Run, Daily, Monthly);
-- It specifies when to create a new log file.
-- None : all log info gets accumulated into the same file.
-- Each_Run : a new log file is created each time the server is started.
-- Daily : a new log file is created each day.
-- Monthly : a new log file is created each month.
Not_Specified : constant String;
procedure Start
(Log : in out Object;
Split : in Split_Mode := None;
File_Directory : in String := Not_Specified;
Filename_Prefix : in String := Not_Specified;
Auto_Flush : in Boolean := False);
-- Activate server's activity logging. Split indicate the way the log file
-- should be created. Log_File_Prefix is the log filename prefix. If it is
-- not specified the default prefix is the program name.
-- Set Auto_Flush to True if you want every write to the log to be flushed
-- (not buffered). Auto_Flush should be set to True only for logs with few
-- entries per second as the flush has a performance penalty.
procedure Write
(Log : in out Object;
Connect_Stat : in Status.Data;
Answer : in Response.Data);
-- Write log info if activated (i.e. Start routine above has been called)
procedure Write
(Log : in out Object;
Connect_Stat : in Status.Data;
Status_Code : in Messages.Status_Code;
Content_Length : in Response.Content_Length_Type);
-- Write log info if activated (i.e. Start routine above has been called).
-- This version separated the Content_Length from Status.Data, this is
-- required for example in the case of a user defined stream content. See
-- AWS.Resources.Stream.
procedure Write
(Log : in out Object;
Connect_Stat : in Status.Data;
Data : in String);
-- Write user's log info if activated. (i.e. Start routine above has been
-- called).
procedure Write
(Log : in out Object;
Data : in String);
-- Write Data into the log file. This Data is unstructured, only a time
-- tag prefix is prepended to Data. This routine is designed to be used
-- for user's info in error log file.
procedure Flush (Log : in out Object);
-- Flush the data to the Log file, for be able to see last logged
-- messages.
procedure Stop (Log : in out Object);
-- Stop logging activity
function Is_Active (Log : in Object) return Boolean;
-- Returns True if Log is activated
function Filename (Log : in Object) return String;
-- Returns current log filename or the empty string if the log is not
-- activated.
function Mode (Log : in Object) return Split_Mode;
-- Returns the split mode. None will be returned if log is not activated.
private
-- implementation removed
end AWS.Log;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Calendar;
package AWS.Messages is
use Ada;
-----------------
-- HTTP tokens --
-----------------
HTTP_Token : constant String := "HTTP/";
Get_Token : constant String := "GET ";
Put_Token : constant String := "PUT ";
Head_Token : constant String := "HEAD ";
Post_Token : constant String := "POST ";
------------------------
-- HTTP header tokens --
------------------------
-- General header tokens RFC 2616
Cache_Control_Token : constant String := "Cache-Control";
Connection_Token : constant String := "Connection";
Date_Token : constant String := "Date";
Pragma_Token : constant String := "Pragma";
Trailer_Token : constant String := "Trailer";
Transfer_Encoding_Token : constant String := "Transfer-Encoding";
Upgrade_Token : constant String := "Upgrade";
Via_Token : constant String := "Via";
Warning_Token : constant String := "Warning";
-- Request header tokens RFC 2616
Accept_Token : constant String := "Accept";
Accept_Charset_Token : constant String := "Accept-Charset";
Accept_Encoding_Token : constant String := "Accept-Encoding";
Accept_Language_Token : constant String := "Accept-Language";
Authorization_Token : constant String := "Authorization";
Expect_Token : constant String := "Expect";
From_Token : constant String := "From";
Host_Token : constant String := "Host";
If_Match_Token : constant String := "If-Match";
If_Modified_Since_Token : constant String := "If-Modified-Since";
If_None_Match_Token : constant String := "If-None-Match";
If_Range_Token : constant String := "If-Range";
If_Unmodified_Since_Token : constant String := "If-Unmodified-Since";
Max_Forwards_Token : constant String := "Max-Forwards";
Proxy_Authorization_Token : constant String := "Proxy-Authorization";
Range_Token : constant String := "Range";
Referer_Token : constant String := "Referer";
TE_Token : constant String := "TE";
User_Agent_Token : constant String := "User-Agent";
-- Response header tokens RFC 2616
Accept_Ranges_Token : constant String := "Accept-Ranges";
Age_Token : constant String := "Age";
ETag_Token : constant String := "ETag";
Location_Token : constant String := "Location";
Proxy_Authenticate_Token : constant String := "Proxy-Authenticate";
Retry_After_Token : constant String := "Retry-After";
Server_Token : constant String := "Server";
Vary_Token : constant String := "Vary";
WWW_Authenticate_Token : constant String := "WWW-Authenticate";
-- Entity header tokens RFC 2616
Allow_Token : constant String := "Allow";
Content_Encoding_Token : constant String := "Content-Encoding";
Content_Language_Token : constant String := "Content-Language";
Content_Length_Token : constant String := "Content-Length";
Content_Location_Token : constant String := "Content-Location";
Content_MD5_Token : constant String := "Content-MD5";
Content_Range_Token : constant String := "Content-Range";
Content_Type_Token : constant String := "Content-Type";
Expires_Token : constant String := "Expires";
Last_Modified_Token : constant String := "Last-Modified";
-- Other tokens
Proxy_Connection_Token : constant String := "Proxy-Connection";
Content_Disposition_Token : constant String := "Content-Disposition";
Cookie_Token : constant String := "Cookie";
Set_Cookie_Token : constant String := "Set-Cookie";
SOAPAction_Token : constant String := "SOAPAction";
Content_Id_Token : constant String := "Content-ID";
Content_Transfer_Encoding_Token : constant String
:= "Content-Transfer-Encoding";
-----------------
-- Status Code --
-----------------
type Status_Code is
(S100, S101,
-- 1xx : Informational - Request received, continuing process
S200, S201, S202, S203, S204, S205, S206,
-- 2xx : Success - The action was successfully received, understood and
-- accepted
S300, S301, S302, S303, S304, S305, S307,
-- 3xx : Redirection - Further action must be taken in order to
-- complete the request
S400, S401, S402, S403, S404, S405, S406, S407, S408, S409,
S410, S411, S412, S413, S414, S415, S416, S417,
-- 4xx : Client Error - The request contains bad syntax or cannot be
-- fulfilled
S500, S501, S502, S503, S504, S505
-- 5xx : Server Error - The server failed to fulfill an apparently
-- valid request
);
function Image (S : in Status_Code) return String;
-- Returns Status_Code image. This value does not contain the leading S.
function Reason_Phrase (S : in Status_Code) return String;
-- Returns the reason phrase for the status code S, see [RFC 2616 - 6.1.1]
----------------------
-- Content encoding --
----------------------
type Content_Encoding is (Identity, GZip, Deflate);
-- Encoding mode for the response, Identity means that no encoding is
-- done, Gzip/Deflate to select the Gzip or Deflate encoding algorithm.
-------------------
-- Cache_Control --
-------------------
type Cache_Option is new String;
-- Cache_Option is a string and any specific option can be specified. We
-- define three options:
--
-- Unspecified : No cache option will used.
-- No_Cache : Ask browser and proxy to not cache data (no-cache,
-- max-age, and s-maxage are specified).
-- No_Store : Ask browser and proxy to not store any data. This can be
-- used to protect sensitive data.
-- Prevent_Cache : Equivalent to No_Store + No_Cache
Unspecified : constant Cache_Option;
No_Cache : constant Cache_Option;
No_Store : constant Cache_Option;
Prevent_Cache : constant Cache_Option;
-------------------------------
-- HTTP message constructors --
-------------------------------
function Accept_Type (Mode : in String) return String;
pragma Inline (Accept_Type);
function Accept_Language (Mode : in String) return String;
pragma Inline (Accept_Language);
function Authorization (Mode, Password : in String) return String;
pragma Inline (Authorization);
function Connection (Mode : in String) return String;
pragma Inline (Connection);
function Content_Length (Size : in Natural) return String;
pragma Inline (Content_Length);
function Cookie (Value : in String) return String;
pragma Inline (Cookie);
function Content_Type
(Format : in String;
Boundary : in String := "")
return String;
pragma Inline (Content_Type);
function Cache_Control (Option : in Cache_Option) return String;
pragma Inline (Cache_Control);
function Content_Disposition
(Format : in String;
Name : in String;
Filename : in String)
return String;
pragma Inline (Content_Disposition);
-- Note that this is not part of HTTP/1.1 standard, it is there because
-- there is a lot of implementation around using it. This header is used
-- in multipart data.
function Host (Name : in String) return String;
pragma Inline (Host);
function Last_Modified (Date : in Calendar.Time) return String;
pragma Inline (Last_Modified);
function Location (URL : in String) return String;
pragma Inline (Location);
function Proxy_Authorization (Mode, Password : in String) return String;
pragma Inline (Proxy_Authorization);
function Proxy_Connection (Mode : in String) return String;
pragma Inline (Proxy_Connection);
function SOAPAction (URI : in String) return String;
pragma Inline (SOAPAction);
function Status_Line (Code : in Status_Code) return String;
pragma Inline (Status_Line);
function Transfer_Encoding (Encoding : in String) return String;
pragma Inline (Transfer_Encoding);
function User_Agent (Name : in String) return String;
pragma Inline (User_Agent);
function WWW_Authenticate (Realm : in String) return String;
pragma Inline (WWW_Authenticate);
-- Basic authentication request.
function WWW_Authenticate
(Realm : in String;
Nonce : in String;
Stale : in Boolean)
return String;
pragma Inline (WWW_Authenticate);
-- Digest authentication request.
-----------------------
-- helper functions --
-----------------------
function Match (Str, Pattern : in String) return Boolean;
pragma Inline (Match);
-- Returns True if Pattern matches the begining of Str. The test is not
-- case sensitive.
function Does_Not_Match (Str, Pattern : in String) return Boolean;
pragma Inline (Does_Not_Match);
-- Returns True if Pattern does not matches the begining of Str. The test
-- is not case sensitive.
function To_HTTP_Date (Time : in Calendar.Time) return String;
-- Returns an Ada time as a string using the HTTP normalized format.
-- Format is RFC 822, updated by RFC 1123.
function To_Time (HTTP_Date : in String) return Calendar.Time;
-- Returns an Ada time from an HTTP one. This is To_HTTP_Date opposite
-- function.
private
-- implementation removed
end AWS.Messages;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
package AWS.MIME is
-- Some content type constants. All of them will be defined into this
-- package and associated with the right extensions. It is possible to
-- add new MIME types with the routines below or by placing a file named
-- aws.mime into the startup directory.
--
-- A MIME type is written in two parts: type/format
----------
-- Text --
----------
Text_CSS : constant String := "text/css";
Text_HTML : constant String := "text/html";
Text_Plain : constant String := "text/plain";
Text_XML : constant String := "text/xml";
Text_X_SGML : constant String := "text/x-sgml";
-----------
-- Image --
-----------
Image_Gif : constant String := "image/gif";
Image_Jpeg : constant String := "image/jpeg";
Image_Png : constant String := "image/png";
Image_Tiff : constant String := "image/tiff";
Image_X_Portable_Anymap : constant String := "image/x-portable-anymap";
Image_X_Portable_Bitmap : constant String := "image/x-portable-bitmap";
Image_X_Portable_Graymap : constant String := "image/x-portable-graymap";
Image_X_Portable_Pixmap : constant String := "image/x-portable-pixmap";
Image_X_RGB : constant String := "image/x-rgb";
Image_X_Xbitmap : constant String := "image/x-xbitmap";
Image_X_Xpixmap : constant String := "image/x-xpixmap";
Image_X_Xwindowdump : constant String := "image/x-xwindowdump";
-----------------
-- Application --
-----------------
Application_Postscript : constant String := "application/postscript";
Application_Pdf : constant String := "application/pdf";
Application_Zip : constant String := "application/zip";
Application_Octet_Stream : constant String := "application/octet-stream";
Application_Form_Data : constant String
:= "application/x-www-form-urlencoded";
Application_Mac_Binhex40 : constant String := "application/mac-binhex40";
Application_Msword : constant String := "application/msword";
Application_Powerpoint : constant String := "application/powerpoint";
Application_Rtf : constant String := "application/rtf";
Application_X_Compress : constant String := "application/x-compress";
Application_X_GTar : constant String := "application/x-gtar";
Application_X_GZip : constant String := "application/x-gzip";
Application_X_Latex : constant String := "application/x-latex";
Application_X_Sh : constant String := "application/x-sh";
Application_X_Shar : constant String := "application/x-shar";
Application_X_Tar : constant String := "application/x-tar";
Application_X_Tcl : constant String := "application/x-tcl";
Application_X_Tex : constant String := "application/x-tex";
Application_X_Texinfo : constant String := "application/x-texinfo";
Application_X_Troff : constant String := "application/x-troff";
Application_X_Troff_Man : constant String := "application/x-troff-man";
-----------
-- Audio --
-----------
Audio_Basic : constant String := "audio/basic";
Audio_Mpeg : constant String := "audio/mpeg";
Audio_X_Wav : constant String := "audio/x-wav";
Audio_X_Pn_Realaudio : constant String := "audio/x-pn-realaudio";
Audio_X_Pn_Realaudio_Plugin : constant String
:= "audio/x-pn-realaudio-plugin";
Audio_X_Realaudio : constant String := "audio/x-realaudio";
-----------
-- Video --
-----------
Video_Mpeg : constant String := "video/mpeg";
Video_Quicktime : constant String := "video/quicktime";
Video_X_Msvideo : constant String := "video/x-msvideo";
---------------
-- Multipart --
---------------
Multipart_Form_Data : constant String := "multipart/form-data";
Multipart_Byteranges : constant String := "multipart/byteranges";
Multipart_Related : constant String := "multipart/related";
Multipart_X_Mixed_Replace : constant String
:= "multipart/x-mixed-replace";
-------------
-- Setting --
-------------
procedure Add_Extension (Ext : in String; MIME_Type : in String);
-- Add extension Ext (file extension without the dot, e.g. "txt") to the
-- set of MIME type extension handled by this API. Ext will be mapped to
-- the MIME_Type string.
procedure Add_Regexp (Filename : in String; MIME_Type : in String);
-- Add a specific rule to the MIME type table. Filename is a regular
-- expression and will be mapped to the MIME_Type string.
---------------
-- MIME Type --
---------------
function Content_Type
(Filename : in String;
Default : in String := Application_Octet_Stream) return String;
-- Returns the MIME Content Type based on filename's extension or if not
-- found the MIME Content type where Filename matches one of the specific
-- rules set by Add_Regexp (see below).
-- Returns Default if the file type is unknown (i.e. no extension and
-- no regular expression match filename).
function Extension (Content_Type : in String) return String;
-- Returns the best guess of the extension to use for the Content Type.
-- Note that extensions added indirectly by Add_Regexp are not searched.
function Is_Text (MIME_Type : in String) return Boolean;
-- Returns True if the MIME_Type is a text data
function Is_Audio (MIME_Type : in String) return Boolean;
-- Returns True if the MIME_Type is an audio data
function Is_Image (MIME_Type : in String) return Boolean;
-- Returns True if the MIME_Type is an image data
function Is_Video (MIME_Type : in String) return Boolean;
-- Returns True if the MIME_Type is a video data
function Is_Application (MIME_Type : in String) return Boolean;
-- Returns True if the MIME_Type is an application data
end AWS.MIME;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2006 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This is two implementations for this spec. One for standard sockets and
-- one for SSL socket. Note that the SSL implementation does support standard
-- socket too, this is controlled with the Security boolean on rountine
-- below. The corresponding implementation will be selected at build time.
with Ada.Exceptions;
with Ada.Finalization;
with Ada.Streams;
with AWS.Utils;
package AWS.Net is
use Ada;
use Ada.Streams;
use Ada.Exceptions;
Socket_Error : exception;
-- Raised by all routines below, a message will indicate the nature of
-- the error.
type Socket_Type is abstract tagged private;
type Socket_Access is access all Socket_Type'Class;
type Socket_Set is array (Positive range <>) of Socket_Access;
type Event_Type is (Error, Input, Output);
-- Error - socket is in error state.
-- Input - socket ready for read.
-- Output - socket available for write.
type Event_Set is array (Event_Type) of Boolean;
-- Type for get result of events waiting
subtype Wait_Event_Type is Event_Type range Input .. Output;
type Wait_Event_Set is array (Wait_Event_Type) of Boolean;
-- Type for set events to wait, note that Error event would be waited
-- anyway.
Forever : constant Duration;
-- The longest delay possible on the implementation
----------------
-- Initialize --
----------------
function Socket (Security : in Boolean) return Socket_Type'Class;
-- Create an uninitialized socket
function Socket (Security : in Boolean) return Socket_Access;
-- Create a dynamically allocated uninitialized socket
procedure Bind
(Socket : in out Socket_Type;
Port : in Natural;
Host : in String := "")
is abstract;
-- Create the server socket and bind it on the given port.
-- Using 0 for the port will tell the OS to allocate a non-privileged
-- free port. The port can be later retrieved using Get_Port on the
-- bound socket.
procedure Listen
(Socket : in Socket_Type;
Queue_Size : in Positive := 5)
is abstract;
-- Set the queue size of the socket
procedure Accept_Socket
(Socket : in Socket_Type'Class;
New_Socket : in out Socket_Type)
is abstract;
-- Accept a connection on a socket. If it raises Socket_Error, all
-- resources used by new_Socket have been released.
-- There is not need to call Free or Shutdown.
type Socket_Constructor is access
function (Security : in Boolean) return Socket_Type'Class;
procedure Connect
(Socket : in out Socket_Type;
Host : in String;
Port : in Positive;
Wait : in Boolean := True)
is abstract;
-- Connect a socket on a given host/port. If Wait is True Connect will wait
-- for the connection to be established for timeout seconds, specified by
-- Set_Timeout routine. If Wait is False Connect will return immediately,
-- not waiting for the connection to be establised. It is possible to wait
-- for the Connection completion by calling Wait routine with Output set to
-- True in Events parameter.
procedure Socket_Pair (S1, S2 : out Socket_Type);
-- Create 2 sockets and connect them together
procedure Shutdown (Socket : in Socket_Type) is abstract;
-- Shutdown both side of the socket and close it. Does not raise
-- Socket_Error if the socket is not connected.
procedure Free (Socket : in out Socket_Access);
-- Release memory associated with the socket
--------
-- IO --
--------
procedure Send
(Socket : in Socket_Type'Class;
Data : in Stream_Element_Array);
-- Send Data chunk to the socket
procedure Send
(Socket : in Socket_Type;
Data : in Stream_Element_Array;
Last : out Stream_Element_Offset)
is abstract;
-- Try to place data to Socket's output buffer.
-- If all data cannot be placed to the socket output buffer, Last will
-- be lower than Data'Last, if no data has been placed into the output
-- buffer, Last is set to be out of Data'Range, either Data'First - 1
-- or Stream_Element_Offset'Last is used.
procedure Receive
(Socket : in Socket_Type;
Data : out Stream_Element_Array;
Last : out Stream_Element_Offset)
is abstract;
-- Read a chunk of data from the socket and set appropriate Last value.
-- This call always returns some data and will wait for incoming data only
-- if necessary.
function Receive
(Socket : in Socket_Type'Class;
Max : in Stream_Element_Count := 4096)
return Stream_Element_Array;
-- Read a chunk of data from the socket and returns it. This call always
-- returns some data and will wait for incoming data only if necessary.
function Pending
(Socket : in Socket_Type)
return Stream_Element_Count
is abstract;
-- Returns the number of bytes which are available inside socket
-- for immediate read.
------------
-- Others --
------------
function Get_FD (Socket : in Socket_Type) return Integer is abstract;
-- Returns the file descriptor associated with the socket
function Peer_Addr (Socket : in Socket_Type) return String is abstract;
-- Returns the peer name/address
function Peer_Port (Socket : in Socket_Type) return Positive is abstract;
-- Returns the port of the peer socket
function Get_Port (Socket : in Socket_Type) return Positive is abstract;
-- Returns the port of the socket
function Host_Name return String;
-- Returns the running host name
procedure Set_Send_Buffer_Size
(Socket : in Socket_Type;
Size : in Natural)
is abstract;
-- Set the internal socket send buffer size.
-- Do not confuse with buffers for the AWS.Net.Buffered operations.
procedure Set_Receive_Buffer_Size
(Socket : in Socket_Type;
Size : in Natural)
is abstract;
-- Set the internal socket receive buffer size.
-- Do not confuse with buffers for the AWS.Net.Buffered operations.
function Get_Send_Buffer_Size (Socket : in Socket_Type) return Natural
is abstract;
-- Returns the internal socket send buffer size.
-- Do not confuse with buffers for the AWS.Net.Buffered operations.
function Get_Receive_Buffer_Size (Socket : in Socket_Type) return Natural
is abstract;
-- Returns the internal socket receive buffer size.
-- Do not confuse with buffers for the AWS.Net.Buffered operations.
procedure Set_Blocking_Mode
(Socket : in out Socket_Type;
Blocking : in Boolean);
pragma Obsolescent ("Use Set_Timeout instead");
-- Set the blocking mode for the socket
procedure Set_Timeout
(Socket : in out Socket_Type;
Timeout : in Duration);
pragma Inline (Set_Timeout);
-- Sets the timeout for the socket read/write operations
procedure Set_No_Delay
(Socket : in Socket_Type;
Value : in Boolean := True);
-- Set/clear TCP_NODELAY option on socket.
function Wait
(Socket : in Socket_Type'Class;
Events : in Wait_Event_Set)
return Event_Set;
-- Waiting for Input/Output/Error events.
-- Waiting time is defined by Set_Timeout.
-- Empty event set in result mean that timeout occured.
function Errno (Socket : in Socket_Type) return Integer is abstract;
-- Returns and clears error state in socket
function Is_Timeout (E : in Exception_Occurrence) return Boolean;
-- Returns True if the message associated with the Exception_Occurence for
-- a Socket_Error is a timeout.
private
-- implementation removed
end AWS.Net;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2002-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- All routines below are buffered both ways (input and output) for better
-- performances.
package AWS.Net.Buffered is
------------
-- Output --
------------
procedure Put (Socket : in Socket_Type'Class; Item : in String);
-- Write Item into Socket's buffer. Send the buffer to the socket if full
procedure Put_Line (Socket : in Socket_Type'Class; Item : in String);
-- Write Item & CRLF into Socket's buffer. Send the buffer to the socket
-- if full.
procedure New_Line (Socket : in Socket_Type'Class);
pragma Inline (New_Line);
-- Write CRLF into Socket's buffer. Send the buffer to the socket if full.
procedure Write
(Socket : in Socket_Type'Class;
Item : in Stream_Element_Array);
-- Write Item into Socket's buffer. Send the buffer to the socket if full.
procedure Flush (Socket : in Socket_Type'Class);
-- Send the buffer to the socket
-----------
-- Input --
-----------
procedure Read
(Socket : in Socket_Type'Class;
Data : out Stream_Element_Array);
pragma Inline (Read);
-- Returns Data array read from the socket
function Read
(Socket : in Socket_Type'Class;
Max : in Stream_Element_Count := 4096)
return Ada.Streams.Stream_Element_Array;
pragma Inline (Read);
-- Returns an array of bytes read from the socket
procedure Read
(Socket : in Socket_Type'Class;
Data : out Stream_Element_Array;
Last : out Stream_Element_Offset);
-- Read any available data from buffered socket.
-- Wait if no data available.
-- Same semantic with Net.Receive procedure.
function Get_Line (Socket : in Socket_Type'Class) return String;
-- Returns a line read from Socket. A line is a set of character
-- terminated by CRLF.
function Get_Char (Socket : in Socket_Type'Class) return Character;
pragma Inline (Get_Char);
-- Returns a single character read from socket
function Peek_Char (Socket : in Socket_Type'Class) return Character;
pragma Inline (Peek_Char);
-- Returns next character that will be read from Socket. It does not
-- actually consume the character, this character will be returned by
-- the next read operation on the socket.
procedure Read_Buffer
(Socket : in Socket_Type'Class;
Data : out Stream_Element_Array;
Last : out Stream_Element_Offset);
-- Returns data read from the internal socket's read buffer. No data are
-- read from the socket. This can be useful when switching to non buffered
-- mode.
-------------
-- Control --
-------------
procedure Shutdown (Socket : in Socket_Type'Class);
-- Shutdown and close the socket. Release all memory and resources
-- associated with it.
end AWS.Net.Buffered;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2004-2006 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This package handles the Net logging facility for AWS.
--
-- AWS calls the Write procedure which in turn calls the callback routine
-- provided by the user when starting the logging. This feature can help
-- greatly to debug an application.
--
-- This package is thread safe. There will never be two simultaneous calls
-- to the callback routine.
package AWS.Net.Log is
type Data_Direction is (Sent, Received);
-- The direction of the data, sent or received to/from the socket
type Event_Type is (Connect, Accept_Socket, Shutdown);
type Write_Callback is access procedure
(Direction : in Data_Direction;
Socket : in Socket_Type'Class;
Data : in Stream_Element_Array;
Last : in Stream_Element_Offset);
-- The callback procedure which is called for each incoming/outgoing data
type Event_Callback is access procedure
(Action : in Event_Type; Socket : in Socket_Type'Class);
-- The callback procedure which is called for every socket creation,
-- connect and accept.
type Error_Callback is access procedure
(Socket : in Socket_Type'Class; Message : in String);
-- The callback procedure which is called for every socket error.
procedure Start
(Write : in Write_Callback;
Event : in Event_Callback := null;
Error : in Error_Callback := null);
-- Activate the logging
function Is_Active return Boolean;
pragma Inline (Is_Active);
-- Returns True if Log is activated and False otherwise
function Is_Write_Active return Boolean;
pragma Inline (Is_Write_Active);
-- Returns True if Write Log is activated and False otherwise
function Is_Event_Active return Boolean;
pragma Inline (Is_Event_Active);
-- Returns True if Event Log is activated and False otherwise
procedure Write
(Direction : in Data_Direction;
Socket : in Socket_Type'Class;
Data : in Stream_Element_Array;
Last : in Stream_Element_Offset);
-- Write sent/received data indirectly through the callback routine,
-- if activated (i.e. Start routine above has been called). Otherwise this
-- call does nothing.
procedure Event (Action : in Event_Type; Socket : in Socket_Type'Class);
-- Call Event callback if activated (i.e. Start routine above has been
-- called). Otherwise this call does nothing.
procedure Error (Socket : in Socket_Type'Class; Message : in String);
-- Call Error callback if activated (i.e. Start routine above has been
-- called). Otherwise this call does nothing.
procedure Stop;
-- Stop logging activity
end AWS.Net.Log;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- Some ready to use write procedures
package AWS.Net.Log.Callbacks is
procedure Initialize
(Filename : in String;
Callback : in Write_Callback);
-- Initialize the logging, must be called before using the callbacks below
procedure Finalize;
-- Stop logging, close log file
procedure Text
(Direction : in Data_Direction;
Socket : in Socket_Type'Class;
Data : in Stream_Element_Array;
Last : in Stream_Element_Offset);
-- A text output, each chunk is output with an header and footer:
-- Data sent/received to/from socket <FD> (<size>/<buffer size>)
-- <data>
-- Total data sent: <nnn> received: <nnn>
procedure Binary
(Direction : in Data_Direction;
Socket : in Socket_Type'Class;
Data : in Stream_Element_Array;
Last : in Stream_Element_Offset);
-- A binary output, each chunk is output with an header and footer. The
-- data itself is written using a format close to the Emacs hexl-mode:
-- Data sent/received to/from socket <FD> (<size>/<buffer size>)
-- HH HH HH HH HH HH HH HH HH HH HH HH az.rt.mpl..q
-- Total data sent: <nnn> received: <nnn>
--
-- HH is the hex character number, if the character is not printable a dot
-- is written.
end AWS.Net.Log.Callbacks;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2002-2006 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This is the SSL based implementation of the Net package. The implementation
-- should depend only on AWS.Net.Std and the SSL library. It is important to
-- not call directly a socket binding here to ease porting.
with AWS.Net.Std;
with SSL.Thin;
package AWS.Net.SSL is
type Socket_Type is new Net.Std.Socket_Type with private;
Is_Supported : constant Boolean;
-- True if SSL supported in the current runtime
----------------
-- Initialize --
----------------
procedure Accept_Socket
(Socket : in Net.Socket_Type'Class;
New_Socket : in out Socket_Type);
-- Accept a connection on a socket
procedure Connect
(Socket : in out Socket_Type;
Host : in String;
Port : in Positive;
Wait : in Boolean := True);
-- Connect a socket on a given host/port. If Wait is True Connect will wait
-- for the connection to be established for timeout seconds, specified by
-- Set_Timeout routine. If Wait is False Connect will return immediately,
-- not waiting for the connection to be establised and it does not make the
-- SSL handshake. It is possible to wait for the Connection completion by
-- calling Wait routine with Output set to True in Events parameter.
procedure Socket_Pair (S1, S2 : out Socket_Type);
-- Create 2 sockets and connect them together.
procedure Shutdown (Socket : in Socket_Type);
-- Shutdown both side of the socket and close it
procedure Free (Socket : in out Socket_Type);
-- Release memory associated with the socket object
--------
-- IO --
--------
procedure Send
(Socket : in Socket_Type;
Data : in Stream_Element_Array;
Last : out Stream_Element_Offset);
procedure Receive
(Socket : in Socket_Type;
Data : out Stream_Element_Array;
Last : out Stream_Element_Offset);
pragma Inline (Receive);
function Pending (Socket : in Socket_Type) return Stream_Element_Count;
-- Returns the number of bytes which are available inside socket
-- for immediate read.
--------------------
-- Initialization --
--------------------
type Method is
(SSLv2, SSLv2_Server, SSLv2_Client,
SSLv23, SSLv23_Server, SSLv23_Client,
TLSv1, TLSv1_Server, TLSv1_Client,
SSLv3, SSLv3_Server, SSLv3_Client);
type Config is private;
Null_Config : constant Config;
procedure Initialize
(Config : in out SSL.Config;
Certificate_Filename : in String;
Security_Mode : in Method := SSLv23;
Key_Filename : in String := "";
Exchange_Certificate : in Boolean := False);
-- Initialize the SSL layer into Config. Certificate_Filename must point
-- to a valid certificate. Security mode can be used to change the
-- security method used by AWS. Key_Filename must be specified if the key
-- is not in the same file as the certificate. The Config object can be
-- associated with all secure sockets sharing the same options. If
-- Exchange_Certificate is True the client will send it's certificate to
-- the server, if False only the server will send its certificate.
procedure Release (Config : in out SSL.Config);
-- Release memory associated with the Config object
procedure Set_Config
(Socket : in out Socket_Type;
Config : in SSL.Config);
-- Set the SSL configuration object for the secure socket
function Secure_Client
(Socket : in Net.Socket_Type'Class;
Config : in SSL.Config := Null_Config) return Socket_Type;
-- Make client side SSL connection from plain socket.
-- SSL handshake does not performed. SSL handshake would be made
-- automatically on first Read/Write, or explicitly by the Do_Handshake
-- call. Do not free or close source socket after this call.
function Secure_Server
(Socket : in Net.Socket_Type'Class;
Config : in SSL.Config := Null_Config) return Socket_Type;
-- Make server side SSL connection from plain socket.
-- SSL handshake does not performed. SSL handshake would be made
-- automatically on first Read/Write, or explicitly by the Do_Handshake
-- call. Do not free or close source socket after this call.
procedure Do_Handshake (Socket : in out Socket_Type);
-- Wait for a SSL/TLS handshake to take place. You need to call this
-- routine if you have converted a standard socket to secure one and need
-- to get the peer certificate.
private
-- implementation removed
end AWS.Net.SSL;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2003 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Strings.Unbounded;
package AWS.Net.SSL.Certificate is
use Ada.Strings.Unbounded;
type Object is private;
Undefined : constant Object;
function Get (Socket : in Socket_Type) return Object;
-- Returns the certificate used by the SSL
function Subject (Certificate : in Object) return String;
-- Returns the certificate's subject
function Issuer (Certificate : in Object) return String;
-- Returns the certificate's issuer
private
-- implementation removed
end AWS.Net.SSL.Certificate;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2002 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Strings.Unbounded;
with AWS.Containers.Tables;
package AWS.Parameters is
type List is new AWS.Containers.Tables.Table_Type with private;
subtype VString_Array is AWS.Containers.Tables.VString_Array;
function URI_Format (Parameter_List : in List) return String;
-- Returns the list of parameters in the URI format. This can be added
-- after the ressource to form the complete URI. The format is:
-- "?name1=value1&name2=value2..."
-- See AWS.Containers.Tables for inherited routines.
private
-- implementation removed
end AWS.Parameters;
------------------------------------------------------------------------------
-- Ada Web Server --
-- P O P - Post Office Protocol --
-- --
-- Copyright (C) 2003-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Finalization;
with Ada.Strings.Unbounded;
with AWS.Headers;
with AWS.Net.Std;
with AWS.Resources.Streams;
package AWS.POP is
use Ada.Strings.Unbounded;
POP_Error : exception;
-- Raised by all routines when an error has been detected
-------------
-- Mailbox --
-------------
Default_POP_Port : constant := 110;
type Mailbox is private;
type Authenticate_Mode is (Clear_Text, APOP);
function Initialize
(Server_Name : in String;
User : in String;
Password : in String;
Authenticate : in Authenticate_Mode := Clear_Text;
Port : in Positive := Default_POP_Port)
return Mailbox;
-- Connect on the given Port to Server_Name and open User's Mailbox. This
-- mailbox object will be used to retrieve messages.
procedure Close (Mailbox : in POP.Mailbox);
-- Close mailbox
function User_Name (Mailbox : in POP.Mailbox) return String;
-- Returns User's name for this mailbox
function Message_Count (Mailbox : in POP.Mailbox) return Natural;
-- Returns the number of messages in the user's mailbox
function Size (Mailbox : in POP.Mailbox) return Natural;
-- Returns the total size in bytes of the user's mailbox
-------------
-- Message --
-------------
type Message is tagged private;
function Get
(Mailbox : in POP.Mailbox;
N : in Positive;
Remove : in Boolean := False)
return Message;
-- Retrieve Nth message from the mailbox, let the message on the mailbox
-- if Remove is False.
procedure Delete
(Mailbox : in POP.Mailbox;
N : in Positive);
-- Detele message number N from the mailbox
function Get_Header
(Mailbox : in POP.Mailbox;
N : in Positive)
return Message;
-- Retrieve headers for the Nth message from the mailbox, let the message
-- on the mailbox. This is useful to build a quick summary of the mailbox.
generic
with procedure Action
(Message : in POP.Message;
Index : in Positive;
Quit : in out Boolean);
procedure For_Every_Message
(Mailbox : in POP.Mailbox;
Remove : in Boolean := False);
-- Calls Action for each message read on the mailbox, delete the message
-- from the mailbox if Remove is True. Set Quit to True to stop the
-- iterator. Index is the mailbox's message index.
generic
with procedure Action
(Message : in POP.Message;
Index : in Positive;
Quit : in out Boolean);
procedure For_Every_Message_Header (Mailbox : in POP.Mailbox);
-- Calls Action for each message read on the mailbox. Only the headers are
-- read from the mailbox. Set Quit to True to stop the iterator. Index is
-- the mailbox's message index.
function Size (Message : in POP.Message) return Natural;
-- Returns the message size in bytes
function Content (Message : in POP.Message) return Unbounded_String;
-- Returns message's content as an Unbounded_String. Each line are
-- separated by CR+LF characters.
function From (Message : in POP.Message) return String;
-- Returns From header value
function To (Message : in POP.Message; N : Natural := 0) return String;
-- Returns the To header value. If N = 0 returns all recipients separated
-- by a coma otherwise it returns the Nth To recipient.
function To_Count (Message : in POP.Message) return Natural;
-- Returns the number of To recipient for Message. returns 0 if there is
-- no To for this message.
function CC (Message : in POP.Message; N : Natural := 0) return String;
-- Retruns the CC header value. If N = 0 returns all recipients separated
-- by a coma otherwise it returns the Nth CC recipient.
function CC_Count (Message : in POP.Message) return Natural;
-- Returns the number of CC recipient for Message. Returns 0 if there is
-- no CC for this message.
function Subject (Message : in POP.Message) return String;
-- Returns Subject header value
function Date (Message : in POP.Message) return String;
-- Returns Date header value
function Header
(Message : in POP.Message;
Header : in String)
return String;
-- Returns header value for header named Header, returns the empty string
-- if such header does not exist.
----------------
-- Attachment --
----------------
type Attachment is private;
function Attachment_Count (Message : in POP.Message) return Natural;
-- Returns the number of Attachments into Message
function Get
(Message : in POP.Message'Class;
Index : in Positive)
return Attachment;
-- Returns the Nth Attachment for Message, Raises Constraint_Error if
-- there is not such attachment.
generic
with procedure Action
(Attachment : in POP.Attachment;
Index : in Positive;
Quit : in out Boolean);
procedure For_Every_Attachment (Message : in POP.Message);
-- Calls action for every Attachment in Message. Stop iterator if Quit is
-- set to True, Quit is set to False by default.
function Content
(Attachment : in POP.Attachment)
return AWS.Resources.Streams.Stream_Access;
-- Returns Attachment's content as a memory stream. Note that the stream
-- has already been decoded. Most attachments are MIME Base64 encoded.
function Content (Attachment : in POP.Attachment) return Unbounded_String;
-- Returns Attachment's content as an Unbounded_String. This routine must
-- only be used for non file attachments. Raises Constraint_Error if
-- called for a file attachment.
function Filename (Attachment : in POP.Attachment) return String;
-- Returns the Attachment filename or the empty string if it is not a file
-- but an embedded message.
function Is_File (Attachment : in POP.Attachment) return Boolean;
-- Returns True if Attachment is a file
procedure Write (Attachment : in POP.Attachment; Directory : in String);
-- Writes Attachment's file content into Directory. This must only be used
-- for a file attachment.
private
-- implementation removed
end AWS.POP;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2002-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Calendar;
with Ada.Streams;
with Ada.Unchecked_Deallocation;
package AWS.Resources is
use Ada.Streams;
Resource_Error : exception;
type File_Type is limited private;
type File_Instance is (None, Plain, GZip, Both);
-- None : No instance of this file present.
-- Plain : A non-compressed version of this file exists.
-- GZip : A gzip encoded version of this file exists.
-- Both : Both versions of this file exists.
subtype Content_Length_Type is Stream_Element_Offset;
Undefined_Length : constant Content_Length_Type;
-- Undefined length could be used when we do not know the message stream
-- length at the start of transfer. The end of message could be determined
-- by the chunked transfer-encoding in the HTTP/1.1, or by the closing
-- connection in the HTTP/1.0.
procedure Open
(File : out File_Type;
Name : in String;
Form : in String := "");
-- Open file in mode In_File. Only reading from the file is supported.
-- This procedure open the in-memory (embedded) file if present, otherwise
-- the file on disk is opened. Note that if Name file is not found, it
-- checks for Name & ".gz" and unzipped the file content in this case.
procedure Open
(File : out File_Type;
Name : in String;
Form : in String := "";
GZip : in out Boolean);
-- Open file in mode In_File. Only reading from the file is supported.
-- This procedure open the in-memory (embedded) file if present, otherwise
-- the file on disk is opened. If GZip parameter is False this call is
-- equivalent to the Open routine above. If GZip is True this routine will
-- first check for the compressed version of the resource (Name & ".gz"),
-- if found GZip output value will remain True. If GZip value is True and
-- the compressed version of the resource does not exist it looks for
-- non-compressed version and set GZip value to False.
procedure Reset (Resource : in out File_Type);
-- Reset the file, reading will restart at the beginning
procedure Set_Index
(Resource : in out File_Type;
To : in Stream_Element_Offset);
-- Set the position in the stream, next Read will start at the position
-- whose index is To. If To is outside the content the index is set to
-- Last + 1 to ensure that next End_Of_File will return True.
procedure Close (Resource : in out File_Type);
-- Close the file
procedure Read
(Resource : in out File_Type;
Buffer : out Stream_Element_Array;
Last : out Stream_Element_Offset);
-- Returns a set of bytes from the file
procedure Get_Line
(Resource : in out File_Type;
Buffer : out String;
Last : out Natural);
-- Returns a line from the file. A line is a set of character terminated
-- by ASCII.LF (UNIX style EOF) or ASCII.CR+ASCII.LF (DOS style EOF).
function End_Of_File (Resource : in File_Type) return Boolean;
-- Returns true if there is no more data to read.
function LF_Terminated (Resource : in File_Type) return Boolean;
-- Returns True if last line returned by Get_Line was terminated with a LF
-- or CR+LF on DOS based systems.
function Size (Resource : in File_Type) return Content_Length_Type;
-- Returns the size (in bytes) of the resource. If the size of the
-- resource is not defined, the routine Size returns Undefined_Length
-- value.
function Exist (Name : in String) return File_Instance;
-- Return GZip if only file Name & ".gz" exists.
-- Return Plain if only file Name exists.
-- Return Both if both file Name and Name & ".gz" exists.
-- Return None if files neither Name nor Name & ".gz" exist.
function Is_Regular_File (Name : in String) return Boolean;
-- Returns True if Filename is a regular file and is readable. Checks
-- first for in memory file then for disk file.
function File_Size (Name : in String) return Stream_Element_Offset;
-- Returns Filename's size in bytes. Checks first for in memory file
-- then for disk file.
function File_Timestamp (Name : in String) return Ada.Calendar.Time;
-- Get the time for last modification to a file in UTC/GMT. Checks first
-- for in memory file then for disk file.
private
-- implementation removed
end AWS.Resources;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2002-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Streams;
with AWS.Resources.Streams.Memory;
package AWS.Resources.Embedded is
use Ada;
subtype Buffer_Access is Streams.Memory.Buffer_Access;
procedure Open
(File : out File_Type;
Name : in String;
Form : in String := "";
GZip : in out Boolean);
-- Open resource from registered data
procedure Create
(File : out File_Type;
Buffer : in Buffer_Access);
-- Create the resource directly from memory data
function Exist (Name : in String) return File_Instance;
-- Return GZip if only file Name & ".gz" exists.
-- Return Plain if only file Name exists.
-- Return Both if both file Name and Name & ".gz" exists.
-- Return None if files neither Name nor Name & ".gz" exist.
function Is_Regular_File (Name : in String) return Boolean;
pragma Inline (Is_Regular_File);
-- Returns True if file named Name has been registered (i.e. it is an
-- in-memory file).
function File_Size
(Name : in String)
return Ada.Streams.Stream_Element_Offset;
function File_Timestamp (Name : in String) return Ada.Calendar.Time;
procedure Register
(Name : in String;
Content : in Buffer_Access;
File_Time : in Calendar.Time);
-- Register a new file named Name into the embedded resources. The file
-- content is pointed to by Content, the File_Time must be the last
-- modification time stamp for the file. If Name ends with ".gz" the
-- embedded resource registered as compressed. If a file is already
-- registered for this name, Content replace the previous one.
end AWS.Resources.Embedded;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2002-2003 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
package AWS.Resources.Files is
procedure Open
(File : out File_Type;
Name : in String;
Form : in String := "";
GZip : in out Boolean);
procedure Open
(File : out File_Type;
Name : in String;
Form : in String := "");
function Exist (Name : in String) return File_Instance;
-- Return GZip if only file Name & ".gz" exists.
-- Return Plain if only file Name exists.
-- Return Both if both file Name and Name & ".gz" exists.
-- Return None if files neither Name nor Name & ".gz" exist.
function Is_Regular_File (Name : in String) return Boolean;
function File_Size
(Name : in String)
return Ada.Streams.Stream_Element_Offset;
function File_Timestamp (Name : in String) return Ada.Calendar.Time;
end AWS.Resources.Files;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2002-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
package AWS.Resources.Streams is
use Ada;
type Stream_Type is abstract tagged limited private;
type Stream_Access is access all Stream_Type'Class;
function End_Of_File (Resource : in Stream_Type) return Boolean is abstract;
procedure Read
(Resource : in out Stream_Type;
Buffer : out Stream_Element_Array;
Last : out Stream_Element_Offset) is abstract;
procedure Reset (Resource : in out Stream_Type) is abstract;
procedure Set_Index
(Resource : in out Stream_Type;
To : in Stream_Element_Offset) is abstract;
-- Set the position in the stream, next Read will start at the position
-- whose index is To. If To is outside the content the index is set to
-- Last + 1 to ensure that next End_Of_File will return True.
procedure Close (Resource : in out Stream_Type) is abstract;
function Size (Resource : in Stream_Type) return Stream_Element_Offset;
-- This default implementation returns Undefined_Length. If the derived
-- stream implementation knows about the size (in bytes) of the stream
-- this routine should be redefined.
function Name (Resource : in Stream_Type) return String;
-- This default implementation returns the empty string. It is must be
-- overwritten by file based stream to provide the proper filename
-- associated with the stream.
procedure Create
(Resource : out File_Type;
Stream : in Stream_Access);
pragma Inline (Create);
-- Create a resource file from user defined stream
private
-- implementation removed
end AWS.Resources.Streams;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2003-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- An ready-to-use implementation of the stream API where the stream content
-- is read from an on-disk file.
with Ada.Streams.Stream_IO;
package AWS.Resources.Streams.Disk is
type Stream_Type is new Streams.Stream_Type with private;
procedure Open
(File : out Stream_Type;
Name : in String;
Form : in String := "shared=no");
function End_Of_File (Resource : in Stream_Type) return Boolean;
procedure Read
(Resource : in out Stream_Type;
Buffer : out Stream_Element_Array;
Last : out Stream_Element_Offset);
function Size (Resource : in Stream_Type) return Stream_Element_Offset;
function Name (Resource : in Stream_Type) return String;
procedure Reset (Resource : in out Stream_Type);
procedure Set_Index
(Resource : in out Stream_Type;
To : in Stream_Element_Offset);
procedure Close (Resource : in out Stream_Type);
private
-- implementation removed
end AWS.Resources.Streams.Disk;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2003-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- An ready-to-use implementation of the stream API where the stream content
-- is read from an on-disk file. The file is removed from the file system
-- when the transfer is completed.
package AWS.Resources.Streams.Disk.Once is
type Stream_Type is new Disk.Stream_Type with null record;
procedure Close (Resource : in out Stream_Type);
-- Only redefine Close that will not only close the stream but also delete
-- the file.
end AWS.Resources.Streams.Disk.Once;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2003-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- API to handle a memory stream. A memory stream is first created
-- empty. User can add chunk of data using the Append routines. The stream
-- is then read using the Read procedure.
with AWS.Utils;
with Memory_Streams;
package AWS.Resources.Streams.Memory is
type Stream_Type is new Streams.Stream_Type with private;
subtype Stream_Element_Access is Utils.Stream_Element_Array_Access;
type Buffer_Access is access constant Ada.Streams.Stream_Element_Array;
procedure Append
(Resource : in out Stream_Type;
Buffer : in Stream_Element_Array;
Trim : in Boolean := False);
-- Append Buffer into the memory stream
procedure Append
(Resource : in out Stream_Type;
Buffer : in Stream_Element_Access);
-- Append static data pointed to Buffer into the memory stream as is.
-- The stream will free the memory on close.
procedure Append
(Resource : in out Stream_Type;
Buffer : in Buffer_Access);
-- Append static data pointed to Buffer into the memory stream as is.
-- The stream would not try to free the memory on close.
procedure Read
(Resource : in out Stream_Type;
Buffer : out Stream_Element_Array;
Last : out Stream_Element_Offset);
-- Returns a chunck of data in Buffer, Last point to the last element
-- returned in Buffer.
function End_Of_File (Resource : in Stream_Type) return Boolean;
-- Returns True if the end of the memory stream has been reached
procedure Clear (Resource : in out Stream_Type);
pragma Inline (Clear);
-- Delete all data from memory stream
procedure Reset (Resource : in out Stream_Type);
-- Reset the streaming data to the first position
procedure Set_Index
(Resource : in out Stream_Type;
To : in Stream_Element_Offset);
-- Set the position in the stream, next Read will start at the position
-- whose index is To.
function Size (Resource : in Stream_Type) return Stream_Element_Offset;
-- Returns the number of bytes in the memory stream
procedure Close (Resource : in out Stream_Type);
-- Close the memory stream. Release all memory associated with the stream
private
-- implementation removed
end AWS.Resources.Streams.Memory;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2003-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This API is used as for standard memory stream (see parent package), the
-- only difference is that the stream is compressing/decompressing on append.
with ZLib;
package AWS.Resources.Streams.Memory.ZLib is
package ZL renames Standard.ZLib;
type Stream_Type is new Memory.Stream_Type with private;
subtype Window_Bits_Type is ZL.Window_Bits_Type;
subtype Header_Type is ZL.Header_Type;
subtype Compression_Level is ZL.Compression_Level;
subtype Strategy_Type is ZL.Strategy_Type;
subtype Compression_Method is ZL.Compression_Method;
subtype Memory_Level_Type is ZL.Memory_Level_Type;
Default_Compression : constant Compression_Level := ZL.Default_Compression;
Default_Header : constant Header_Type := ZL.Default;
procedure Deflate_Initialize
(Resource : in out Stream_Type;
Level : in Compression_Level := ZL.Default_Compression;
Strategy : in Strategy_Type := ZL.Default_Strategy;
Method : in Compression_Method := ZL.Deflated;
Window_Bits : in Window_Bits_Type := ZL.Default_Window_Bits;
Memory_Level : in Memory_Level_Type := ZL.Default_Memory_Level;
Header : in Header_Type := ZL.Default);
pragma Inline (Deflate_Initialize);
-- Initialize the compression
procedure Inflate_Initialize
(Resource : in out Stream_Type;
Window_Bits : in Window_Bits_Type := ZL.Default_Window_Bits;
Header : in Header_Type := ZL.Default);
pragma Inline (Inflate_Initialize);
-- Initialize the decompression
procedure Append
(Resource : in out Stream_Type;
Buffer : in Stream_Element_Array;
Trim : in Boolean := False);
-- Compress/decompress and Append Buffer into the memory stream
procedure Read
(Resource : in out Stream_Type;
Buffer : out Stream_Element_Array;
Last : out Stream_Element_Offset);
-- Returns a chunck of data in Buffer, Last point to the last element
-- returned in Buffer.
function Size (Resource : in Stream_Type) return Stream_Element_Offset;
-- Returns the number of bytes in the memory stream
procedure Close (Resource : in out Stream_Type);
-- Close the ZLib stream, release all memory associated with the Resource
-- object.
private
-- implementation removed
end AWS.Resources.Streams.Memory.ZLib;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This package is to be used to build answer to be sent to the client
-- browser. It is also used as the object returned from the client API. So
-- it is either a response built on the server side or the response received
-- on the client side.
with Ada.Strings.Unbounded;
with Ada.Streams;
with Ada.Finalization;
with Ada.Unchecked_Deallocation;
with AWS.Headers;
with AWS.Messages;
with AWS.MIME;
with AWS.Net;
with AWS.Resources.Streams;
with AWS.Status;
package AWS.Response is
use Ada;
type Data is private;
-- Note that this type use a reference counter which is not thread safe.
type Callback is access function (Request : in Status.Data) return Data;
-- This is the Web Server Callback procedure. A client must declare and
-- pass such procedure to the HTTP record.
type Data_Mode is
(Header, -- Send only the HTTP header
Message, -- Send a standard HTTP message
File, -- Send a file
File_Once, -- Send a file once, delete it after sending
Stream, -- Send a stream
Socket_Taken, -- Socket has been taken from the server
No_Data); -- No data, this is not a response
type Authentication_Mode is (Any, Basic, Digest);
-- The authentication mode.
-- "Basic" and "Digest" mean that server must accept the requested
-- authentication mode. "Any" mean that server could accept any
-- authentication from client.
-- Note the order here should not be changed as it is used in AWS.Client.
subtype Content_Length_Type is Integer range -1 .. Integer'Last;
Undefined_Length : constant Content_Length_Type;
-- Undefined length could be used when we do not know the message length
-- at the start of transfer. The end of message could be determined by the
-- chunked transfer-encoding in the HTTP/1.1, or by the closing connection
-- in the HTTP/1.0.
Default_Moved_Message : constant String;
-- This is a template message, _@_ will be replaced by the Location (see
-- function Build with Location below).
Default_Authenticate_Message : constant String;
-- This is the message that will be displayed on the Web Browser if the
-- authentication process fails or is cancelled.
-----------------------
-- Data Constructors --
-----------------------
function Build
(Content_Type : in String;
Message_Body : in String;
Status_Code : in Messages.Status_Code := Messages.S200;
Cache_Control : in Messages.Cache_Option := Messages.Unspecified;
Encoding : in Messages.Content_Encoding := Messages.Identity)
return Data;
function Build
(Content_Type : in String;
UString_Message : in Strings.Unbounded.Unbounded_String;
Status_Code : in Messages.Status_Code := Messages.S200;
Cache_Control : in Messages.Cache_Option := Messages.Unspecified;
Encoding : in Messages.Content_Encoding := Messages.Identity)
return Data;
-- Return a message whose body is passed into Message_Body. The
-- Content_Type parameter is the MIME type for the message
-- body. Status_Code is the response status (see Messages.Status_Code
-- definition).
function Build
(Content_Type : in String;
Message_Body : in Streams.Stream_Element_Array;
Status_Code : in Messages.Status_Code := Messages.S200;
Cache_Control : in Messages.Cache_Option := Messages.Unspecified;
Encoding : in Messages.Content_Encoding := Messages.Identity)
return Data;
-- Idem above, but the message body is a stream element array
type Disposition_Mode is (Attachment, Inline, None);
-- Describes the way a file/stream is sent to the browser.
--
-- Attachment : The file is sent as an attachment, the browser
-- wont display the content even if the MIME type
-- is supported (.txt or .doc on IE for example).
--
-- Inline : The file can be displayed inside the browser if
-- MIME type is supported. If not the browser will
-- propose to save this file.
--
-- None : No specific setting is sent to the browser. The
-- browser default setting will be used. Note that in
-- this case the browser determine the filename using
-- the URI. This is the default setting.
function File
(Content_Type : in String;
Filename : in String;
Status_Code : in Messages.Status_Code := Messages.S200;
Cache_Control : in Messages.Cache_Option := Messages.Unspecified;
Encoding : in Messages.Content_Encoding := Messages.Identity;
Once : in Boolean := False;
Disposition : in Disposition_Mode := None;
User_Filename : in String := "")
return Data;
-- Returns a message whose message body is the content of the file. The
-- Content_Type must indicate the MIME type for the file. User_Filename
-- can be used to force the filename on the client side. This can be
-- different from the server side Filename. If Once is set to True the
-- file will be deleted after the download (this includes the case where
-- the download is suspended).
function Stream
(Content_Type : in String;
Handle : access Resources.Streams.Stream_Type'Class;
Status_Code : in Messages.Status_Code := Messages.S200;
Cache_Control : in Messages.Cache_Option := Messages.No_Cache;
Encoding : in Messages.Content_Encoding := Messages.Identity;
Server_Close : in Boolean := True;
Disposition : in Disposition_Mode := None;
User_Filename : in String := "")
return Data;
-- Returns a message whose message body is the content of the user defined
-- stream. The Content_Type must indicate the MIME type for the data
-- stream, Status_Code is the the header status code which should be send
-- back to client's browser. If Server_Close is set to False the server
-- will not close the stream after sending it, it is then user's
-- responsability to close the stream. User_Filename can be used to force
-- the filename on the client side. This can be different from the server
-- side filename (for file based stream) or can be used to name a non disk
-- based stream.
------------------------------
-- Redirection Constructors --
------------------------------
function URL
(Location : in String;
Cache_Control : in Messages.Cache_Option := Messages.Unspecified)
return Data;
-- This ask the server for a redirection to the specified URL
function Moved
(Location : in String;
Message : in String := Default_Moved_Message;
Cache_Control : in Messages.Cache_Option := Messages.Unspecified)
return Data;
-- This send back a moved message (Messages.S301) with the specified
-- message body.
------------------------
-- Other Constructors --
------------------------
function Acknowledge
(Status_Code : in Messages.Status_Code;
Message_Body : in String := "";
Content_Type : in String := MIME.Text_HTML)
return Data;
-- Returns a message to the Web browser. This routine must be used to
-- send back an error message to the Web browser. For example if a
-- requested resource cannot be served a message with status code S404
-- must be sent.
function Authenticate
(Realm : in String;
Mode : in Authentication_Mode := Basic;
Stale : in Boolean := False;
Message : in String := Default_Authenticate_Message)
return Data;
-- Returns an authentication message (Messages.S401), the Web browser
-- will then ask for an authentication. Realm string will be displayed
-- by the Web Browser in the authentication dialog box.
function Socket_Taken return Data;
-- Must be used to say that the connection socket has been taken by user
-- inside of user callback. No operations should be performed on this
-- socket, and associated slot should be released for further operations.
function Empty return Data;
-- Returns an empty message (Data_Mode = No_Data and Status_Code is 204).
-- It is used to say that user's handlers were not able to do something
-- with the request. This is used by the callback's chain in the
-- dispatchers and should not be used by users.
--
-- API to retrieve response data
--
------------
-- Header --
------------
function Header
(D : in Data;
Name : in String;
N : in Positive)
return String;
pragma Inline (Header);
-- Return the N-th value for header Name
function Header
(D : in Data;
Name : in String)
return String;
pragma Inline (Header);
-- Return all values as a comma-separated string for header Name.
-- See [RFC 2616 - 4.2] last paragraph.
procedure Send_Header (Socket : in Net.Socket_Type'Class; D : in Data);
pragma Inline (Send_Header);
-- Send all header lines to the socket
function Status_Code (D : in Data) return Messages.Status_Code;
pragma Inline (Status_Code);
-- Returns the status code
function Content_Length (D : in Data) return Content_Length_Type;
pragma Inline (Content_Length);
-- Returns the content length (i.e. the message body length). A value of 0
-- indicate that there is no message body.
function Content_Type (D : in Data) return String;
pragma Inline (Content_Type);
-- Returns the MIME type for the message body
function Cache_Control (D : in Data) return Messages.Cache_Option;
pragma Inline (Cache_Control);
-- Returns the cache control specified for the response
function Location (D : in Data) return String;
pragma Inline (Location);
-- Returns the location for the new page in the case of a moved
-- message. See Moved constructor above.
----------
-- Data --
----------
function Mode (D : in Data) return Data_Mode;
pragma Inline (Mode);
-- Returns the data mode, either Header, Message or File
function Message_Body (D : in Data) return String;
pragma Inline (Message_Body);
-- Returns the message body content as a string.
-- Message_Body routines could not be used with user defined streams
-- (see. Stream routine in this package). Constraint_Error would be raised
-- on try to get data by the Message_Body from the user defined streams.
-- For get data from user defined streams routine Create_Resource should
-- be used.
function Message_Body
(D : in Data)
return Strings.Unbounded.Unbounded_String;
-- Returns message body content as an unbounded_string
function Message_Body (D : in Data) return Streams.Stream_Element_Array;
-- Returns message body as a binary content
procedure Message_Body
(D : in Data;
File : out AWS.Resources.File_Type);
-- Returns the message body as a stream
function Filename (D : in Data) return String;
pragma Inline (Filename);
-- Returns the filename which should be sent back
--------------------
-- Authentication --
--------------------
function Realm (D : in Data) return String;
pragma Inline (Realm);
-- Returns the Realm for the current authentication request
function Authentication (D : in Data) return Authentication_Mode;
pragma Inline (Authentication);
-- Returns the authentication mode requested by server
function Authentication_Stale (D : in Data) return Boolean;
pragma Inline (Authentication_Stale);
-- Returns the stale parameter for authentication
---------------
-- Resources --
---------------
procedure Create_Resource
(D : in out Data;
File : out AWS.Resources.File_Type;
GZip : in Boolean);
pragma Inline (Create_Resource);
-- Creates the resource object (either a file or in-memory object) for
-- the data to be sent to the client. The resource should be closed after
-- use.
-- GZip is true when the http client support GZip decoding,
-- if file or embedded resource is in the GZip format this routine would
-- define Content-Encoding header field value.
function Close_Resource (D : in Data) return Boolean;
-- Returns True if the resource stream must be close
private
-- implementation removed
end AWS.Response;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2006 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Calendar;
with Ada.Exceptions;
with Ada.Finalization;
with AWS.Config;
with AWS.Default;
with AWS.Dispatchers;
with AWS.Exceptions;
with AWS.Hotplug;
with AWS.Log;
with AWS.Net.SSL;
with AWS.Response;
with AWS.Status;
with AWS.Utils;
package AWS.Server is
type HTTP is limited private;
-- A Web server
---------------------------
-- Server initialization --
---------------------------
-- Note that starting a sercure server if AWS has not been configured to
-- support HTTPS will raise Program_Error.
procedure Start
(Web_Server : in out HTTP;
Callback : in Response.Callback;
Config : in AWS.Config.Object);
-- Start server using a full configuration object. With this routine it is
-- possible to control all features of the server. A simplified version of
-- Start is also provided below with the most common options.
procedure Start
(Web_Server : in out HTTP;
Dispatcher : in Dispatchers.Handler'Class;
Config : in AWS.Config.Object);
-- Idem, but using the dispatcher tagged type instead of callback. See
-- AWS.Services.Dispatchers and AWS.Dispatchers hierarchies for built-in
-- services and interface to build your own dispatcher models.
-- Note that a copy of the Dispatcher is keept into Web_Server. Any
-- changes done to the Dispatcher object will not be part of the Web
-- server dispatcher.
procedure Start
(Web_Server : in out HTTP;
Name : in String;
Callback : in Response.Callback;
Max_Connection : in Positive := Default.Max_Connection;
Admin_URI : in String := Default.Admin_URI;
Port : in Positive := Default.Server_Port;
Security : in Boolean := False;
Session : in Boolean := False;
Case_Sensitive_Parameters : in Boolean := True;
Upload_Directory : in String := Default.Upload_Directory;
Line_Stack_Size : in Positive := Default.Line_Stack_Size);
-- Start the Web server. Max_Connection is the number of simultaneous
-- connections the server's will handle (the number of slots in AWS).
-- Name is just a string used to identify the server. This is used
-- for example in the administrative page. Admin_URI must be set to enable
-- the administrative status page. Callback is the procedure to call for
-- each resource requested. Port is the Web server port. If Security is
-- set to True the server will use an HTTPS/SSL connection. If Session is
-- set to True the server will be able to get a status for each client
-- connected. A session Id is used for that, on the client side it is a
-- cookie. Case_Sensitive_Parameters if set to False it means that the CGI
-- parameters name will be handled without case sensitivity. Upload
-- directory point to a directory where uploaded files will be stored.
------------------------
-- Server termination --
------------------------
procedure Shutdown (Web_Server : in out HTTP);
-- Stop the server and release all associated memory. This routine can
-- take some time to terminate because it waits for all tasks to terminate
-- properly before releasing the memory. The log facilities will be
-- automatically stopped by calling Stop_Log below.
type Termination is (No_Server, Q_Key_Pressed, Forever);
procedure Wait (Mode : in Termination := No_Server);
-- The purpose of this procedure is to control the main procedure
-- termination. This procedure will return only when no server are running
-- (No_Server mode) or the 'q' key has been pressed. If mode is set to
-- Forever, Wait will never return and the process will have to be killed.
--------------------------
-- Server configuration --
--------------------------
function Config (Web_Server : in HTTP) return AWS.Config.Object;
-- Returns configuration object for Web_Server
procedure Set_Unexpected_Exception_Handler
(Web_Server : in out HTTP;
Handler : in Exceptions.Unexpected_Exception_Handler);
-- Set the unexpected exception handler. It is called whenever an
-- unrecoverable error has been detected. The default handler just display
-- (on standard output) an error message with the location of the
-- error. By changing this handler it is possible to log or display full
-- symbolic stack backtrace if needed.
procedure Set
(Web_Server : in out HTTP;
Dispatcher : in Dispatchers.Handler'Class);
-- Dynamically associate a new dispatcher object to the server. With the
-- feature it is possible to change server behavior at runtime. The
-- complete set of callback procedures will be changed when calling this
-- routine.
procedure Set_Security
(Web_Server : in out HTTP;
Certificate_Filename : in String;
Security_Mode : in Net.SSL.Method := Net.SSL.SSLv23_Server;
Key_Filename : in String := "");
-- Set security option for AWS. Certificate_Filename is the name of a file
-- containing a certificate. Key_Filename is the name of the file
-- containing the key, if the empty string the key will be taken from the
-- certificate filename. This must be called before starting the secure
-- server otherwise the default security options or options set in the
-- config files will be used. After that the call will have no effect.
procedure Set_Socket_Constructor
(Web_Server : in out HTTP;
Socket_Constructor : in Net.Socket_Constructor);
-- Set the socket constructor routine to use when creating new sockets on
-- the server. By calling this routine it is possible to replace the
-- default AWS communication layer used. The default constructor is
-- AWS.Net.Socket. Note that this routine must be called before starting
-- the server. It is also important to note that sockets returned by the
-- constructor must have the cache properly initialized. See AWS.Net.Cache
-- for more information.
type HTTP_Access is access all HTTP;
function Get_Current return HTTP_Access;
-- Get current server. This can be used in a callback procedure to
-- retrieve the running HTTP server. It is needed when a callback
-- procedure is shared by multiple servers.
function Get_Status return Status.Data;
-- Returns the current status data. This is useful to get the full status
-- in a templates engine callback procedure for example.
---------------
-- Other API --
---------------
procedure Give_Back_Socket
(Web_Server : in out HTTP;
Socket : in Net.Socket_Type'Class);
-- Give the socket back to the server. Socket must have been taken from
-- the server using the Response.Socket_Taken routine in a callback.
private
-- implementation removed
end AWS.Server;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with AWS.Hotplug;
package AWS.Server.Hotplug is
-- Messages used to register/unregister hotplug modules
Register_Message : constant String := "REGISTER";
Unregister_Message : constant String := "UNREGISTER";
Request_Nonce_Message : constant String := "REQUEST_NONCE";
-- The Authorization_File below is a file that contains authorizations
-- for the hotplug modules. Only modules that have an entry into this
-- file will be able to register to server. Each line on this fille must
-- have the following format:
--
-- <module_name>:<md5_password>:<host>:<port>
--
-- module_name : The name of the module that will register
-- md5_password : The corresponding password, use hotplug_password
-- tool to generate such password
-- host : The host name where requests will be redirected
-- port : and the corresponding port
procedure Activate
(Web_Server : in HTTP_Access;
Port : in Positive;
Authorization_File : in String;
Register_Mode : in AWS.Hotplug.Register_Mode := AWS.Hotplug.Add);
-- Start hotplug server listening at the specified Port for the Web_Server.
-- Only client modules listed in the authorization file will be able to
-- connect to this server. For better securite the host of redictection
-- must also be specified.
procedure Shutdown;
-- Shutdown hotplug server
end AWS.Server.Hotplug;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2003-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
package AWS.Server.Log is
------------------
-- Standard Log --
------------------
procedure Start
(Web_Server : in out HTTP;
Split_Mode : in AWS.Log.Split_Mode := AWS.Log.None;
Filename_Prefix : in String := "";
Auto_Flush : in Boolean := False);
-- Activate server's logging activity. See AWS.Log. If Auto_Flush is True
-- the file will be flushed after all written data.
function Name (Web_Server : in HTTP) return String;
-- Return the name of the Log or an empty string if one is not active
procedure Stop (Web_Server : in out HTTP);
-- Stop server's logging activity. See AWS.Log
function Is_Active
(Web_Server : in HTTP) return Boolean;
-- Returns True if the Web Server log has been activated
procedure Flush (Web_Server : in out HTTP);
-- Flush the server log.
-- Note that error log does not need to be flushed because it is always
-- flushed by default.
---------------
-- Error Log --
---------------
procedure Start_Error
(Web_Server : in out HTTP;
Split_Mode : in AWS.Log.Split_Mode := AWS.Log.None;
Filename_Prefix : in String := "");
-- Activate server's logging activity. See AWS.Log
function Error_Name (Web_Server : in HTTP) return String;
-- Return the name of the Error Log or an empty string if one is not active
procedure Stop_Error (Web_Server : in out HTTP);
-- Stop server's logging activity. See AWS.Log
function Is_Error_Active (Web_Server : in HTTP) return Boolean;
-- Returns True if the Web Server error log has been activated
end AWS.Server.Log;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2006 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- Package to support Server Push feature. This is only supported by Netscape
-- browsers. It will not work with Microsoft Internet Explorer.
-- For Microsoft Internet Explorer complementary active components
-- should be used like java applets or ActiveX controls.
with Ada.Strings.Unbounded;
with AWS.Net.Stream_IO;
with Strings_Maps;
generic
type Client_Output_Type (<>) is private;
-- Data type client want to send through server push.
type Stream_Output_Type (<>) is private;
-- Data type to be sent through the socket stream.
type Client_Environment is private;
-- Data type to keep client context. This context will be passed to the
-- conversion routine below.
with function To_Stream_Output
(Output : in Client_Output_Type;
Client : in Client_Environment)
return Stream_Output_Type;
-- Function used for convert Client_Output_Type to Stream_Output_Type.
-- This is used by the server to prepare the data to be sent to the
-- clients.
package AWS.Server.Push is
use Ada.Strings.Unbounded;
Client_Gone : exception;
-- Raised when a client is not responding
Closed : exception;
-- Raised when trying to register to a closed push server
Duplicate_Client_Id : exception;
-- Raised in trying to register an already registered client
type Object is limited private;
-- This is the push server object. A push server has two modes, either it
-- is Open or Closed. When open it will send data to registered
-- clients. No data will be sent to registered client if the server is
-- Closed.
type Mode is (Plain, Multipart, Chunked);
-- Describeed the mode to communicate with the client.
-- Plain : no transformation is done, the data are sent as-is
-- Multipart : data are MIME encoded.
-- Chuncked : data are chunked, a piece of data is sent in small pieces.
subtype Client_Key is String;
-- The Client Id key representation. In a server each client must have a
-- uniq ID. This Id is used for registration and for sending data to
-- specific client.
type Group_Set is array (Positive range <>) of Unbounded_String;
Empty_Group : constant Group_Set := (1 .. 0 => Null_Unbounded_String);
procedure Register
(Server : in out Object;
Client_Id : in Client_Key;
Socket : in Net.Socket_Type'Class;
Environment : in Client_Environment;
Init_Data : in Client_Output_Type;
Init_Content_Type : in String := "";
Kind : in Mode := Plain;
Close_Duplicate : in Boolean := False;
Groups : in Group_Set := Empty_Group);
-- Add client identified by Client_Id to the server subscription
-- list and send the Init_Data (as a Data_Content_Type mime content) to
-- him. After registering this client will be able to receive pushed data
-- from the server in brodcasting mode. If Close_Duplicate is True and
-- Client_Id is already registered into the list then old one will be
-- unregistered first (no exception will be raised).
procedure Register
(Server : in out Object;
Client_Id : in Client_Key;
Socket : in Net.Socket_Type'Class;
Environment : in Client_Environment;
Kind : in Mode := Plain;
Close_Duplicate : in Boolean := False;
Groups : in Group_Set := Empty_Group);
-- Same as above but without sending initial data
procedure Unregister
(Server : in out Object;
Client_Id : in Client_Key;
Close_Socket : in Boolean := True);
-- Removes client Client_Id from server subscription list. The associated
-- client's socket will be closed if Close_Socket is True. No exception is
-- raised if Client_Id was not registered.
procedure Unregister_Clients
(Server : in out Object;
Close_Sockets : in Boolean := True);
-- Remove all registered clients from the server. Closes if Close_Sockets
-- is set to True (default) otherwise the sockets remain open. After this
-- call the sever will still in running mode. Does nothing if there is no
-- client registered.
procedure Send_To
(Server : in out Object;
Client_Id : in Client_Key;
Data : in Client_Output_Type;
Content_Type : in String := "");
-- Push data to a specified client identified by Client_Id
procedure Send
(Server : in out Object;
Data : in Client_Output_Type;
Group_Id : in String := "";
Content_Type : in String := "");
-- Push data to group of clients (broadcast) subscribed to the server.
-- If Group_Id is empty, data transferred to each client.
generic
with procedure Client_Gone (Client_Id : in String);
procedure Send_G
(Server : in out Object;
Data : in Client_Output_Type;
Group_Id : in String := "";
Content_Type : in String := "");
-- Push data to group of clients (broadcast) subscribed to the server.
-- If Group_Id is empty, data transferred to each client.
-- Call Client_Gone for each client with broken socket.
function Count (Server : in Object) return Natural;
-- Returns the number of registered clients in the server
function Is_Open (Server : in Object) return Boolean;
-- Return True if the server is open, meaning server is still running,
-- ready to accept client's registration and still sending data to
-- clients.
-- Shutdown routines put the server in a Closed mode. The routines below
-- provides a way to eventually close the socket, to send some
-- finalisation data.
procedure Shutdown
(Server : in out Object;
Close_Sockets : in Boolean := True);
-- Unregisted all clients and close all associated connections (socket) if
-- Close_Socket is True. The server will be in Closed mode. After this
-- call any client trying to register will get the Closed exception. It is
-- possible to reactivate the server with Restart.
procedure Shutdown
(Server : in out Object;
Final_Data : in Client_Output_Type;
Final_Content_Type : in String := "");
-- Idem as above but it send Final_Data (as a Data_Content_Type mime
-- content) before closing connections.
procedure Shutdown_If_Empty
(Server : in out Object;
Open : out Boolean);
-- Server will be shutdown (close mode) if there is no more active clients
-- (Count = 0). Returns new server status in Open (Open will be True if
-- server is in Open mode and False otherwise). After this call any client
-- trying to register will get the Closed exception. It is possible to
-- reactivate the server with Restart.
procedure Restart (Server : in out Object);
-- Set server to Open mode. Server will again send data to registered
-- clients. It does nothing if server was already open.
private
-- implementation removed
end AWS.Server.Push;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2003-2006 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This package provides routine to retrieve server's internal status
with Ada.Calendar;
with AWS.Templates;
package AWS.Server.Status is
function Translations (Server : in HTTP) return Templates.Translate_Table;
-- Returns a translate table to be used with a template file. This table
-- contains all internal server's data. This table is used by the server
-- internal status page for example.
function Start_Time (Server : in HTTP) return Ada.Calendar.Time;
-- Returns the server's start time
function Resources_Served (Server : in HTTP) return Natural;
-- Returns the total number of resources (static file, templates,
-- in-memory string) served by the server.
function Socket (Server : in HTTP) return Net.Socket_Type'Class;
-- Returns the server's socket
function Current_Connections (Server : in HTTP) return Natural;
-- Returns the current number of connections
function Is_Session_Activated (Server : in HTTP) return Boolean;
-- Returns True if the session feature has been activated
function Is_Security_Activated (Server : in HTTP) return Boolean;
-- Returns True if the HTTPS protocol is used
function Is_Shutdown (Server : in HTTP) return Boolean;
-- Returns True if server has been stopped (the server could still be in
-- the shutdown phase).
end AWS.Server.Status;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- Services to be used to declare aliases based on URI. This is mostly
-- designed to be used with AWS.services.Dispatchers.URI.
with AWS.Response;
with AWS.Status;
package AWS.Services.Callbacks is
use AWS;
generic
Prefix : String; -- the prefix found in the URI
Directory : String; -- the directory where the file is
function File (Request : in Status.Data) return Response.Data;
-- This is a callback function where URL:
-- http://<host>/<prefix>toto
-- references the file:
-- <directory>/toto
--
-- If the URL does not start with Prefix it returns a 404 error page.
-- This is designed to be use with AWS.Services.Dispatchers.URI.
end AWS.Services.Callbacks;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2003 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with AWS.Status;
with Templates_Parser;
-- This service can be used to browse a file system. The browsing mechanism
-- will gather information (filename, size, directory...) from a specified
-- directory name and will fill a translation table. This table will be used
-- with a template file to render the HTML document. You can design your own
-- browsing template file, here is a description of all tag variables defined
-- in the translation table:
--
-- URI (discrete)
-- The URI pointing to the directory parsed.
--
-- VERSION (discrete)
-- AWS version string.
--
-- IS_DIR_V (vector)
-- A list of booleans, indicate if Nth entry is a directory or not.
--
-- NAME_V (vector)
-- A list of filenames. Nth name is a directory if Nth entry in IS_DIR
-- is set to true.
--
-- SIZE_V (vector)
-- A list of sizes. Nth entry is the file size of the Nth entry in
-- NAMES.
--
-- TIME_V (vector)
-- A list of last modification times. Nth entry is is the last
-- modification time of the Nth entry in NAMES.
--
-- NAME_ORDR
-- Rule to either set ordering on name or to revert current name
-- ordering.
--
-- SNME_ORDR
-- Rule to either set ordering on name (case sensitive) or to revert
-- current name (case sensitive) ordering.
--
-- EXT_ORDR
-- Rule to either set ordering on extension or to revert current
-- extension ordering.
--
-- SEXT_ORDR
-- Rule to either set ordering on extension (case sensitive) or to
-- revert current extension (case sensitive) ordering.
--
-- MIME_ORDR
-- Rule to either set ordering on MIME type or to revert current MIME
-- type ordering.
--
-- DIR_ORDR
-- Rule to either set ordering on directory or to revert current
-- directory ordering.
--
-- SIZE_ORDR
-- Rule to either set ordering on size or to revert current size
-- ordering.
--
-- TIME_ORDR
-- Rule to either set ordering on time or to revert current time
-- ordering.
--
-- ORIG_ORDR
-- Rule to either set original ordering (file order as read on the file
-- system) or to revert current original ordering.
--
-- DIR_NAME_ORDR
-- Rule to either set ordering on directory/name or to revert current
-- directory/name ordering.
--
-- DIR_SNME_ORDR
-- Rule to either set ordering on directory/name (case sensitive) or to
-- revert current directory/name (case sensitive) ordering.
--
-- DIR_TIME_ORDR
-- Rule to either set ordering on directory/time or to revert current
-- directory/time ordering.
--
package AWS.Services.Directory is
use Templates_Parser;
function Browse
(Directory_Name : in String;
Request : in AWS.Status.Data)
return Translate_Table;
-- Returns a translation table containing information parsed from
-- Directory_Name. This is supposed to be used with a directory template.
function Browse
(Directory_Name : in String;
Template_Filename : in String;
Request : in AWS.Status.Data;
Translations : in Translate_Table := No_Translation)
return String;
-- Parses directory Directory_Name and use Templates_Parser to fill in the
-- template Template_Filename. It is possible to specified some specifics
-- tags in Translations.
end AWS.Services.Directory;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
package AWS.Services.Dispatchers is
pragma Pure;
-- Services on the Dispatcher tree are to help building big servers.
-- Experiences shows that a lot of user's code is to check the value of a
-- specific URI or request method to call the right callback that will
-- handle the request. This code is a big "if/elsif/end if" that just hide
-- the real job. A dispatcher is to replace this code. Currently there is
-- five of them:
--
-- URI (AWS.Services.Dispatchers.URI)
-- to dispatch to a callback depending of the ressource name.
--
-- Method (AWS.Services.Dispatchers.Method)
-- to dispatch to a callback depending of the request method.
--
-- Virtual_Host (AWS.Services.Dispatchers.Virtual_Host)
-- to dispatch to a callback depending on the host name. This is known
-- as virtual hosting and permit to have multiple servers on the same
-- machine using the same port.
--
-- Transient_Pages (AWS.Services.Dispatchers.Transient_Pages)
-- to handle transient pages, if the default user's callback returns
-- 404 this dispatcher checks if the requested resource is a transient
-- page.
--
-- Timer (AWS.Services.Dispatchers.Timer)
-- to dispatch to a specific callback depending on the current time.
--
-- Linker (AWS.Services.Dispatchers.Linker)
-- to link two dispatchers together, if the first one retruns 404 tries
-- the second one.
end AWS.Services.Dispatchers;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- Link two dispatchers together
with AWS.Dispatchers;
with AWS.Response;
with AWS.Status;
package AWS.Services.Dispatchers.Linker is
type Handler is new AWS.Dispatchers.Handler with private;
function Dispatch
(Dispatcher : in Handler;
Request : in Status.Data)
return Response.Data;
-- Dispatch to the first dispatcher, if the resources is not found (status
-- code 404 returned) there try on the second one.
procedure Register
(Dispatcher : in out Handler;
First, Second : in AWS.Dispatchers.Handler'Class);
-- Set the dispatcher first and second handler. The First handler will be
-- looked for before the second.
private
-- implementation removed
end AWS.Services.Dispatchers.Linker;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2003 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- Dispatch a specific request to a callback depending on the request method.
with AWS.Dispatchers;
with AWS.Response;
with AWS.Status;
package AWS.Services.Dispatchers.Method is
type Handler is new AWS.Dispatchers.Handler with private;
function Dispatch
(Dispatcher : in Handler;
Request : in Status.Data)
return Response.Data;
procedure Register
(Dispatcher : in out Handler;
Method : in Status.Request_Method;
Action : in AWS.Dispatchers.Handler'Class);
-- Register callback to use for a specific request method.
procedure Register
(Dispatcher : in out Handler;
Method : in Status.Request_Method;
Action : in Response.Callback);
-- Idem as above but take a callback procedure as parameter.
procedure Unregister
(Dispatcher : in out Handler;
Method : in Status.Request_Method);
-- Removes Method from the list of request method to handle.
procedure Register_Default_Callback
(Dispatcher : in out Handler;
Action : in AWS.Dispatchers.Handler'Class);
-- Register the default callback. This will be used if no request method
-- have been activated.
private
-- implementation removed
end AWS.Services.Dispatchers.Method;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- Dispatch a specific request to a callback depending on the URI.
with Ada.Strings.Unbounded;
with AI302.Containers.Vectors;
with AWS.Dispatchers;
with AWS.Response;
with AWS.Status;
package AWS.Services.Dispatchers.URI is
type Handler is new AWS.Dispatchers.Handler with private;
function Dispatch
(Dispatcher : in Handler;
Request : in Status.Data)
return Response.Data;
-- Dispatch will return the value returned by the first callback matching
-- the request. Note that if a callback returns the Response.Empty
-- message, Dispatch will just continue to the next matching callback. In
-- any cases, if no handler matches it will call the default callback. If
-- no default callback is registered an error HTML message will be
-- returned.
procedure Register
(Dispatcher : in out Handler;
URI : in String;
Action : in AWS.Dispatchers.Handler'Class;
Prefix : in Boolean := False);
-- Register URI to use the specified dispatcher. URI is the full string
-- that must match the ressource requested (with the leading /). If Prefix
-- is True, only the URI prefix is checked.
procedure Register
(Dispatcher : in out Handler;
URI : in String;
Action : in Response.Callback;
Prefix : in Boolean := False);
-- Idem as above but take a callback procedure as parameter
procedure Register_Regexp
(Dispatcher : in out Handler;
URI : in String;
Action : in AWS.Dispatchers.Handler'Class);
-- Register URI to use the specified dispatcher. URI is a regular
-- expression that must math the ressource requested (with the leading /).
procedure Register_Regexp
(Dispatcher : in out Handler;
URI : in String;
Action : in Response.Callback);
-- Idem as above but take a callback procedure as parameter
procedure Unregister
(Dispatcher : in out Handler;
URI : in String);
-- Removes URI from the list. URI is either a name or a regexp and must
-- have exactaly the value used with Register.
procedure Register_Default_Callback
(Dispatcher : in out Handler;
Action : in AWS.Dispatchers.Handler'Class);
-- Register the default callback. This will be used if no URI match
-- the request.
private
-- implementation removed
end AWS.Services.Dispatchers.URI;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2001 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Strings.Unbounded;
with Strings_Maps;
with AWS.Dispatchers;
with AWS.Response;
with AWS.Status;
package AWS.Services.Dispatchers.Virtual_Host is
type Handler is new AWS.Dispatchers.Handler with private;
function Dispatch
(Dispatcher : in Handler;
Request : in Status.Data)
return Response.Data;
procedure Register
(Dispatcher : in out Handler;
Virtual_Hostname : in String;
Hostname : in String);
-- Register Virtual_Hostname to be a redirection to the specified
-- hostname.
procedure Register
(Dispatcher : in out Handler;
Virtual_Hostname : in String;
Action : in AWS.Dispatchers.Handler'Class);
-- Register Virtual_Hostname to use the specified callback.
procedure Register
(Dispatcher : in out Handler;
Virtual_Hostname : in String;
Action : in Response.Callback);
-- Idem as above but take a callback procedure as parameter.
procedure Unregister
(Dispatcher : in out Handler;
Virtual_Hostname : in String);
-- Removes Virtual_Hostname from the list of virtual hostnames to handle.
procedure Register_Default_Callback
(Dispatcher : in out Handler;
Action : in AWS.Dispatchers.Handler'Class);
-- Register the default callback. This will be used if no Virtual_Hostname
-- match the request.
private
-- implementation removed
end AWS.Services.Dispatchers.Virtual_Host;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This is a download manager service, can be used to avoid polluting the main
-- server slot with long downloads. A single task is used in this
-- implementation.
with AWS.Config;
with AWS.Dispatchers;
with AWS.Resources.Streams;
with AWS.Response;
with AWS.Services.Dispatchers.Linker;
with AWS.Status;
package AWS.Services.Download is
procedure Start
(Server_Dispatcher : in AWS.Dispatchers.Handler'Class;
Main_Dispatcher : out Services.Dispatchers.Linker.Handler;
Max_Concurrent_Download : in Positive :=
Config.Max_Concurrent_Download);
-- Start the download manager server. Server_Dispatcher is the dispatcher
-- for the Web server. Main_Dispatcher is the dispatcher that must be used
-- with the main server start routine. This dispatcher handles the standard
-- web server resources and the download manager ones.
-- Max_Concurrent_Download contains the number of simultaneous download
-- that can be handled, request past this limit are queued. Note that a
-- single task is used for this implementation. Using a download manager is
-- useful to avoid the standard Web server to be busy with long downloads.
procedure Stop;
-- Stop the download server, all current download are interrupted
function Build
(Request : in Status.Data;
Name : in String;
Resource : access Resources.Streams.Stream_Type'Class)
return Response.Data;
-- Queue a download request. If there is room on the download manager the
-- template page aws_download_manager_start.thtml is used to build the
-- answer otherwise the template page aws_download_manager_waiting.thtml is
-- used. Name is the resource name and will be the default name used on the
-- user side to save the file on disk. Resource is a stream on which the
-- data to be sent are read.
--
-- Templates tags description:
--
-- aws_download_manager_waiting.thtml
-- NAME the name of the resource as pass to build
-- RES_URI the resource URI unique to the download server
-- POSITION the position on the waiting queue
-- aws_download_manager_start.thtml
-- NAME the name of the resource as pass to build
-- RES_URI the resource URI unique to the download server
--
-- Note that both template pages must contain a refresh meta-tag:
--
-- <meta http-equiv="refresh" content="2">
end AWS.Services.Download;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2001 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- The Callback is an implementation of a simple static Web page server. It
-- will return the Web pages found in the Web server directory. If directory
-- browsing is activated, it will be possible to browse directory content if
-- the requested ressource is a directory. There is two specials files that
-- are recognized:
--
-- 404.thtml The Web page returned if the requested page is
-- not found. This is a template with a single tag
-- variable named PAGE. It will be replaced by the
-- ressource which was not found.
--
-- Note that on Microsoft IE this page will be
-- displayed only if the total page size is bigger
-- than 512 bytes or it includes at least one
-- image.
--
-- aws_directory.thtml The template page used for directory browsing.
-- See AWS.Services.Directory for a full description
-- of this template usage.
with AWS.Status;
with AWS.Response;
package AWS.Services.Page_Server is
procedure Directory_Browsing (Activated : in Boolean);
-- If Activated is set to True the directory browsing faciity will be
-- activated. By default this feature is not activated.
function Callback (Request : in AWS.Status.Data) return AWS.Response.Data;
-- This is the AWS callback for the simple static Web pages server.
end AWS.Services.Page_Server;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2003-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Strings.Unbounded;
with AWS.Response;
with AWS.Templates;
package AWS.Services.Split_Pages is
use Ada.Strings.Unbounded;
Splitter_Error : exception;
-- This package provides an API to split a big table in multiple pages
-- using the transient Web Pages support.
type Page_Range is record
First : Positive;
Last : Natural; -- For an empty range, Last < First
end record;
type Ranges_Table is array (Positive range <>) of Page_Range;
type URI_Table is array (Positive range <>) of Unbounded_String;
type Splitter is abstract tagged limited private;
-- This is the (abstract) root class of all splitters
-- Two operations are necessary: Get_Page_Ranges and Get_Translations
-- The following tags are always defined by the Parse function; however,
-- if a splitter redefines them in Get_Translations, the new definition
-- will replace the standard one:
-- NUMBER_PAGES Number of pages generated.
-- PAGE_NUMBER Position of the current page in all pages
-- OFFSET Current table line offset real table line can be computed
-- using: @_"+"(OFFSET):TABLE_LINE_@
function Get_Page_Ranges
(This : in Splitter;
Table : in Templates.Translate_Set)
return Ranges_Table is abstract;
-- Get_Page_Ranges is called to define the range (in lines) of each split
-- page. Note that the ranges may overlap and need not cover the full
-- table.
function Get_Translations
(This : in Splitter;
Page : in Positive;
URIs : in URI_Table;
Ranges : in Ranges_Table)
return Templates.Translate_Set is abstract;
-- Get_Translations builds the translation table for use with the splitter
function Parse
(Template : in String;
Translations : in Templates.Translate_Set;
Table : in Templates.Translate_Set;
Split_Rule : in Splitter'Class;
Cached : in Boolean := True)
return Response.Data;
function Parse
(Template : in String;
Translations : in Templates.Translate_Table;
Table : in Templates.Translate_Table;
Split_Rule : in Splitter'Class;
Cached : in Boolean := True)
return Response.Data;
-- Parse the Template file and split the result in multiple pages.
-- Translations is a standard Translate_Set used for all pages. Table
-- is the Translate_Set containing data for the table to split in
-- multiple pages. This table will be analysed and according to the
-- Split_Rule, a set of transient pages will be created.
-- If Cached is True the template will be cached (see Templates_Parser
-- documentation).
-- Each Split_Rule define a number of specific tags for use in the template
-- file.
function Parse
(Template : in String;
Translations : in Templates.Translate_Table;
Table : in Templates.Translate_Table;
Max_Per_Page : in Positive := 25;
Max_In_Index : in Positive := 20;
Cached : in Boolean := True)
return Response.Data;
-- Compatibility function with previous version of AWS.
-- Uses the Uniform_Splitter
-- Note that the Max_In_Index parameter is ignored.
-- The same effect can be achieved by using the bounded_index.thtml
-- template for displaying the index.
private
-- implementation removed
end AWS.Services.Split_Pages;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
package AWS.Services.Split_Pages.Alpha is
-- Split in (at most) 28 pages, one for empty fields, one for all fields
-- that start with a digit, and one for each different initial letter.
-- Note that leading spaces in the key field are ignored; this means that a
-- key field containing only spaces is treated as an empty field.
-- The key field is set by calling Set_Key. If no key is defined, or no
-- corresponding association is found in Table, or the association is not a
-- vector, Splitter_Error is raised.
-- The key field must be sorted, and all values must be empty or start with
-- a digit or letter (case ignored). Otherwise, Splitter_Error is raised.
-- Letters that do not appear in the key field are associated to the empty
-- string; an Href can be specified instead by calling Set_Default_Href.
--
-- Tags:
-- NEXT The href to the next page.
-- PREVIOUS The href to the previous page.
-- FIRST The href to the first page.
-- LAST The href to the last page.
-- PAGE_INDEX Position of the current page in the INDEXES_V vector
-- HREFS_V A vector tag containing a set of href to pages, or "" if
-- their is no page for the corresponding letter.
-- INDEXES_V A vector tag (synchronized with HREFS_V) containing ' '
-- and the letters 'A' .. 'Z'
--
-- HREFS_V and INDEXES_V can be used to create an index to the generated
-- pages.
type Splitter is new Split_Pages.Splitter with private;
function Get_Page_Ranges
(This : in Splitter;
Table : in Templates.Translate_Set)
return Ranges_Table;
function Get_Translations
(This : in Splitter;
Page : in Positive;
URIs : in URI_Table;
Ranges : in Ranges_Table)
return Templates.Translate_Set;
procedure Set_Key (This : in out Splitter; Key : in String);
-- Set the key field, this is the name of the vector association in the
-- translate_set that will be used to create the index.
procedure Set_Default_Href (This : in out Splitter; Href : in String);
-- Href to use for letter having no entry in the key, if not specified the
-- empty string is used.
private
-- implementation removed
end AWS.Services.Split_Pages.Alpha;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
package AWS.Services.Split_Pages.Alpha.Bounded is
-- Same as the alpha splitter, but pages larger than Max_Per_Page are
-- further splitted.
-- A secondary index is generated that gives the various pages for a given
-- letter.
--
-- Tags (in addition to those of the alpha splitter):
-- S_NEXT The href to the next page.
-- S_PREVIOUS The href to the previous page.
-- S_FIRST The href to the first page.
-- S_LAST The href to the last page.
-- S_PAGE_INDEX Position of the current page in the S_INDEXES_V vector
-- Note that for this splitter, this is also the page number.
-- S_HREFS_V A vector tag containing a set of href to the different
-- pages for the current letter.
-- S_INDEXES_V A vector tag (synchronized with S_HREFS_V) containing the
-- page numbers for the hrefs.
--
-- HREFS_V and INDEXES_V can be used to create an index to the generated
-- pages. S_HREFS_V and S_INDEXES_V can be used to create a secondary
-- alphabetical index that points directly to the corresponding element.
type Splitter (Max_Per_Page : Positive) is new Alpha.Splitter with private;
function Get_Page_Ranges
(This : in Splitter;
Table : in Templates.Translate_Set)
return Ranges_Table;
function Get_Translations
(This : in Splitter;
Page : in Positive;
URIs : in URI_Table;
Ranges : in Ranges_Table)
return Templates.Translate_Set;
private
-- implementation removed
end AWS.Services.Split_Pages.Alpha.Bounded;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
package AWS.Services.Split_Pages.Uniform is
-- Split in pages of length Max_Per_Page (except the last one)
--
-- Tags:
-- NEXT The href to the next page.
-- PREVIOUS The href to the previous page.
-- FIRST The href to the first page.
-- LAST The href to the last page.
-- PAGE_INDEX Position of the current page in the INDEXES_V vector
-- Note that for this splitter, this is also the page number.
-- HREFS_V A vector tag containing a set of href to pages.
-- INDEXES_V A vector tag (synchronized with HREFS_V) containing the
-- page numbers for the hrefs.
--
-- HREFS_V and INDEXES_V can be used to create an index to the generated
-- pages.
type Splitter (Max_Per_Page : Positive)
is new Split_Pages.Splitter with private;
function Get_Page_Ranges
(This : in Splitter;
Table : in Templates.Translate_Set)
return Ranges_Table;
function Get_Translations
(This : in Splitter;
Page : in Positive;
URIs : in URI_Table;
Ranges : in Ranges_Table)
return Templates.Translate_Set;
private
-- implementation removed
end AWS.Services.Split_Pages.Uniform;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
package AWS.Services.Split_Pages.Uniform.Alpha is
-- Same as the uniform splitter, but builds in addition an alphabetical
-- secondary index from a key field.
-- For the references from the index to work, each line of the @TABLE@
-- statement must include the following:
-- <a name="@_TABLE_LINE_@>
-- The alphabetical index will include one entry for empty fields, one
-- entry for all fields that start with a digit, and one entry for each
-- different initial letter.
-- Note that leading spaces in the key field are ignored; this means that a
-- key field containing only spaces is treated as an empty field.
-- The key field is set by calling Set_Key. If no key is defined, or no
-- corresponding association is found in Table, or the association is not a
-- vector, Splitter_Error is raised.
-- The key field must be sorted, and all values must be empty or start with
-- a digit or letter (case ignored). Otherwise, Splitter_Error is raised.
--
-- Tags (in addition to those of the uniform splitter):
-- S_HREFS_V A vector tag containing a set of href to pages in the form
-- <page>#<line>.
-- S_INDEXES_V A vector tag (synchronized with S_HREFS_V) containing
-- "<>", "0..9", and the letters 'A' .. 'Z'
--
-- HREFS_V and INDEXES_V can be used to create an index to the generated
-- pages. S_HREFS_V and S_INDEXES_V can be used to create a secondary
-- alphabetical index that points directly to the corresponding element.
type Splitter is new Uniform.Splitter with private;
function Get_Page_Ranges
(This : in Splitter;
Table : in Templates.Translate_Set)
return Ranges_Table;
function Get_Translations
(This : in Splitter;
Page : in Positive;
URIs : in URI_Table;
Ranges : in Ranges_Table)
return Templates.Translate_Set;
procedure Set_Key (This : in out Splitter; Key : in String);
-- Set the key field, this is the name of the vector association in the
-- translate_set that will be used to create the index.
private
-- implementation removed
end AWS.Services.Split_Pages.Uniform.Alpha;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
package AWS.Services.Split_Pages.Uniform.Overlapping is
-- Same as the uniform splitter, but pages (except the first one)
-- repeat Overlap lines from the previous page in addition to the
-- Max_Per_Page lines
--
-- Tags:
-- Same as the Uniform splitter
type Splitter
(Max_Per_Page : Positive;
Overlap : Natural) is new Uniform.Splitter with private;
function Get_Page_Ranges
(This : in Splitter;
Table : in Templates.Translate_Set)
return Ranges_Table;
private
-- implementation removed
end AWS.Services.Split_Pages.Uniform.Overlapping;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2003-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with AWS.Default;
with AWS.Resources.Streams;
package AWS.Services.Transient_Pages is
function Get_URI return String;
-- Create a unique URI, must be used to register a transient web page
procedure Register
(URI : in String;
Resource : in AWS.Resources.Streams.Stream_Access;
Lifetime : in Duration := Default.Transient_Lifetime);
-- Register a new transient page, this page will be deleted after Lifetime
-- seconds.
function Get (URI : in String) return AWS.Resources.Streams.Stream_Access;
-- Returns the stream access for the URI or null if this URI has not been
-- registered.
private
-- implementation removed
end AWS.Services.Transient_Pages;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2006 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This is the API to handle session data for each client connected.
with Ada.Calendar;
package AWS.Session is
type Id is private;
No_Session : constant Id;
function Create return Id;
-- Create a new uniq Session Id
procedure Delete (SID : in Id);
-- Delete session, does nothing if SID does not exists.
-- In most cases, the client browser will still send the cookie identifying
-- the session on its next request. In such a case, the function
-- AWS.Status.Timed_Out will return True, same as when the session was
-- deleted automatically by AWS when it expired.
-- The recommended practice is therefore to call
-- AWS.Response.Set.Clear_Session when you send a response to the customer
-- after deleting the session, so that the cookie is not sent again.
function Image (SID : in Id) return String;
pragma Inline (Image);
-- Return ID image
function Value (SID : in String) return Id;
pragma Inline (Value);
-- Build an ID from a String, returns No_Session if SID is not recongnized
-- as an AWS session ID.
function Exist (SID : in Id) return Boolean;
-- Returns True if SID exist
procedure Touch (SID : in Id);
-- Update to current time the timestamp associated with SID. Does nothing
-- if SID does not exists.
procedure Set
(SID : in Id;
Key : in String;
Value : in String);
-- Set key/pair value for the SID
procedure Set
(SID : in Id;
Key : in String;
Value : in Integer);
-- Set key/pair value for the SID
procedure Set
(SID : in Id;
Key : in String;
Value : in Float);
-- Set key/pair value for the SID
procedure Set
(SID : in Id;
Key : in String;
Value : in Boolean);
-- Set key/pair value for the SID
function Get (SID : in Id; Key : in String) return String;
pragma Inline (Get);
-- Returns the Value for Key in the session SID or the emptry string if
-- key does not exist.
function Get (SID : in Id; Key : in String) return Integer;
pragma Inline (Get);
-- Returns the Value for Key in the session SID or the integer value 0 if
-- key does not exist or is not an integer.
function Get (SID : in Id; Key : in String) return Float;
pragma Inline (Get);
-- Returns the Value for Key in the session SID or the float value 0.0 if
-- key does not exist or is not a float.
function Get (SID : in Id; Key : in String) return Boolean;
pragma Inline (Get);
-- Returns the Value for Key in the session SID or the boolean False if
-- key does not exist or is not a boolean.
generic
type Data is private;
Null_Data : Data;
package Generic_Data is
procedure Set
(SID : in Id;
Key : in String;
Value : in Data);
-- Set key/pair value for the SID
function Get (SID : in Id; Key : in String) return Data;
pragma Inline (Get);
-- Returns the Value for Key in the session SID or Null_Data if
-- key does not exist.
end Generic_Data;
procedure Remove
(SID : in Id;
Key : in String);
-- Removes Key from the specified session
function Exist
(SID : in Id;
Key : in String)
return Boolean;
-- Returns True if Key exist in session SID
procedure Clear;
-- Removes all sessions data
---------------
-- Iterators --
---------------
generic
with procedure Action
(N : in Positive;
SID : in Id;
Time_Stamp : in Ada.Calendar.Time;
Quit : in out Boolean);
procedure For_Every_Session;
-- Iterator which call Action for every active session. N is the SID
-- order. Time_Stamp is the time when SID was updated for the last
-- time. Quit is set to False by default, it is possible to control the
-- iterator termination by setting its value to True. Note that in the
-- Action procedure it is possible to use routines that read session's
-- data (Get, Exist) but any routines which modify the data will block
-- (i.e. Touch, Set, Remove, Delete will dead lock).
generic
with procedure Action
(N : in Positive;
Key, Value : in String;
Quit : in out Boolean);
procedure For_Every_Session_Data (SID : in Id);
-- Iterator which returns all the key/value pair defined for session SID.
-- Quit is set to False by default, it is possible to control the iterator
-- termination by setting its value to True. Note that in the Action
-- procedure it is possible to use routines that read session's data (Get,
-- Exist) but any routines which modify the data will block (i.e. Touch,
-- Set, Remove, Delete will dead lock).
--------------
-- Lifetime --
--------------
procedure Set_Lifetime (Seconds : in Duration);
-- Set the lifetime for session data. At the point a session is deleted,
-- reusing the session ID makes AWS.Status.Session_Timed_Out return True.
function Get_Lifetime return Duration;
-- Get current session lifetime for session data
function Has_Expired (SID : in Id) return Boolean;
-- Returns true if SID should be considered as expired (ie there hasn't
-- been any transaction on it since Get_Lifetime seconds. Such a session
-- should be deleted. Calling this function is mostly internal to AWS, and
-- sessions are deleted automatically when they expire.
----------------------
-- Session Callback --
----------------------
type Callback is access procedure (SID : in Id);
-- Callback procedure called when a sesssion is deleted from the server
procedure Set_Callback (Callback : in Session.Callback);
-- Set the callback procedure to call when a session is deleted from the
-- server. If Callback is Null the session's callback will be removed.
----------------
-- Session IO --
----------------
procedure Save (File_Name : in String);
-- Save all sessions data into File_Name
procedure Load (File_Name : in String);
-- Restore all sessions data from File_Name
private
-- implementation removed
end AWS.Session;
------------------------------------------------------------------------------
-- Ada Web Server --
-- S M T P - Simple Mail Transfer Protocol --
-- --
-- Copyright (C) 2000-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This library implement the Simple Mail Transfer Protocol. Only part of the
-- RFC 821 is covered. There is no support to send a message to a console for
-- example.
with Ada.Strings.Unbounded;
with AWS.Net;
package AWS.SMTP is
Server_Error : exception;
-- Raised when an unrecoverable error is found.
Reply_Code_Error : exception;
-- Raised when a reply code error is not known.
Default_SMTP_Port : constant := 25;
type Receiver is private;
-- The receiver part (i.e. a server) of SMTP messages as defined in
-- RFC 821. This is the SMTP server
----------------
-- Reply_Code --
----------------
type Reply_Code is range 200 .. 554;
Service_Ready : constant Reply_Code := 220;
Service_Closing : constant Reply_Code := 221;
Requested_Action_Ok : constant Reply_Code := 250;
Start_Mail_Input : constant Reply_Code := 354;
Syntax_Error : constant Reply_Code := 500;
function Image (R : in Reply_Code) return String;
-- Returns the reply code as a string. Raises Reply_Code_Error if R is
-- not a valid reply code.
function Name (R : in Reply_Code) return String;
-- Returns the reply code reason string. Raises Reply_Code_Error if R is
-- not a valid reply code.
function Message (R : in Reply_Code) return String;
-- This returns the value: Image (R) & ' ' & Name (R)
------------
-- Status --
------------
type Status is private;
function Is_Ok (Status : in SMTP.Status) return Boolean;
pragma Inline (Is_Ok);
-- Return True is status if Ok (no problem) or false if a problem has been
-- detected. This is not an error (in that case Error is raised) but a
-- warning because something wrong (but not unrecoverable) has happen.
function Status_Message (Status : in SMTP.Status) return String;
-- If Is_Ok is False, this function return the reason of the problem. The
-- return message is the error message as reported by the server.
function Status_Code (Status : in SMTP.Status) return Reply_Code;
pragma Inline (Status_Code);
-- Returns the code replied by the server.
procedure Clear (Status : in out SMTP.Status);
pragma Inline (Clear);
-- Clear Status value. Code is set to Requested_Action_Ok and message
-- string to null.
-----------------
-- E_Mail_Data --
-----------------
type E_Mail_Data is private;
type Address_Mode is (Full, Name, Address);
function Image
(E_Mail : in E_Mail_Data;
Mode : in Address_Mode := Full) return String;
-- Returns E_Mail only (Mode = Address), recipient name only (Mode = Name)
-- or Name and e-mail (Mode = Full).
function E_Mail (Name : in String; Address : in String)
return E_Mail_Data;
-- Returns an e-mail address
function Parse (E_Mail : in String) return E_Mail_Data;
-- Parse an e-mail with format "Name <address>" or "address (Name)"
-- and Returns the corresponding E_Mail_Data. Raises Contraint_Error
-- if E_Mail can't be parsed.
type Recipients is array (Positive range <>) of E_Mail_Data;
private
-- implementation removed
end AWS.SMTP;
------------------------------------------------------------------------------
-- Ada Web Server --
-- S M T P - Simple Mail Transfer Protocol --
-- --
-- Copyright (C) 2000-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
--
-- This unit implement API to send mail message. It is possible to send
-- simple mail [RFC 821] and mail with MIME attachments [RFC 2045 & 2049].
--
-- How to send a mail:
--
-- 1) Initialize a Server to send the messages.
--
-- Wanadoo : SMTP.Server := SMTP.Client.Initialize ("smtp.wanadoo.fr");
--
-- 2) Send a message via this server.
--
-- Result : SMTP.Status;
--
-- SMTP.Client.Send
-- (Server => Wanadoo,
-- From => SMTP.E_Mail ("Pascal Obry", "p.obry@wanadoo.fr"),
-- To => SMTP.E_Mail
-- ("Dmitriy Anisimkov", "anisimkov@omsknet.ru"),
-- Subject => "Latest Ada news",
-- Message => "now Ada can send SMTP mail!",
-- Status => Result);
with Ada.Strings.Unbounded;
package AWS.SMTP.Client is
use Ada.Strings.Unbounded;
function Initialize
(Server_Name : in String;
Port : in Positive := Default_SMTP_Port)
return Receiver;
-- Create a Server composed of the Name and the Port (default SMTP port
-- is 25), this server will be used to send SMTP message.
procedure Send
(Server : in Receiver;
From : in E_Mail_Data;
To : in E_Mail_Data;
Subject : in String;
Message : in String;
Status : out SMTP.Status);
-- Send a message via Server. The mail is a simple message composed of a
-- subject and a text message body. Raise Server_Error in case of an
-- unrecoverable error (e.g. can't contact the server).
type Attachment is private;
-- This is an attachment object, either a File or a Base64 content.
function File (Filename : in String) return Attachment;
-- Returns a file attachment. Filename point to a file on the file system.
function Base64_Data (Name, Content : in String) return Attachment;
-- Returns a base64 attachment. Content is the Base64 encoded
-- data. Attachment is named Name. This is a way to send a file attachment
-- from in-memory data.
type Attachment_Set is array (Positive range <>) of Attachment;
-- A set of file attachments.
procedure Send
(Server : in Receiver;
From : in E_Mail_Data;
To : in E_Mail_Data;
Subject : in String;
Message : in String;
Attachments : in Attachment_Set;
Status : out SMTP.Status);
-- Send a message via Server. The mail is a MIME message composed of a
-- subject, a message and a set of files MIME encoded. Raise Server_Error
-- in case of an unrecoverable error (e.g. can't contact the server).
-- Raises Constraint_Error is a file attachment cannot be opened.
type Message_File is new String;
procedure Send
(Server : in Receiver;
From : in E_Mail_Data;
To : in E_Mail_Data;
Subject : in String;
Filename : in Message_File;
Status : out SMTP.Status);
-- Send filename content via Server. The mail is a message composed of a
-- subject and a message body coming from a file. Raises Server_Error in
-- case of an unrecoverable error (e.g. can't contact the server). Raises
-- Constraint_Error if Filename cannot be opened.
--
-- Extentded interfaces to send a message to many recipients.
--
procedure Send
(Server : in Receiver;
From : in E_Mail_Data;
To : in Recipients;
Subject : in String;
Message : in String;
Status : out SMTP.Status);
-- Send a message via Server. The mail is a simple message composed of a
-- subject and a text message body. Raise Server_Error in case of an
-- unrecoverable error (e.g. can't contact the server).
procedure Send
(Server : in Receiver;
From : in E_Mail_Data;
To : in Recipients;
Subject : in String;
Message : in String;
Attachments : in Attachment_Set;
Status : out SMTP.Status);
-- Send a message via Server. The mail is a MIME message composed of a
-- subject, a message and a set of files MIME encoded. Raise Server_Error
-- in case of an unrecoverable error (e.g. can't contact the server).
-- Raises Constraint_Error is a file attachment cannot be opened.
private
-- implementation removed
end AWS.SMTP.Client;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This package is used to keep the HTTP protocol status. Client can then
-- request the status for various values like the requested URI, the
-- Content_Length and the Session ID for example.
with Ada.Streams;
with Ada.Strings.Unbounded;
with AWS.Attachments;
with AWS.Headers;
with AWS.Messages;
with AWS.Net;
with AWS.Parameters;
with AWS.Session;
with AWS.URL;
with AWS.Utils;
package AWS.Status is
type Data is private;
type Request_Method is (GET, HEAD, POST, PUT);
type Authorization_Type is (None, Basic, Digest);
------------------
-- Request-Line --
------------------
function Method (D : in Data) return Request_Method;
pragma Inline (Method);
-- Returns the request method
function URI (D : in Data) return String;
pragma Inline (URI);
-- Returns the requested resource
function URI (D : in Data) return URL.Object;
pragma Inline (URI);
-- As above but return an URL object
function Parameters (D : in Data) return Parameters.List;
pragma Inline (Parameters);
-- Returns the list of parameters for the request. This list can be empty
-- if there was no form or URL parameters.
function Parameter
(D : in Data; Name : in String; N : in Positive := 1) return String;
pragma Inline (Parameter);
function HTTP_Version (D : in Data) return String;
pragma Inline (HTTP_Version);
-- Returns the HTTP version used by the client
------------
-- Header --
------------
function Header (D : in Data) return Headers.List;
pragma Inline (Header);
-- Returns the list of header lines for the request
function Accept_Encoding (D : in Data) return String;
pragma Inline (Accept_Encoding);
-- Get the value for "Accept-Encoding:" header
function Connection (D : in Data) return String;
pragma Inline (Connection);
-- Get the value for "Connection:" parameter
function Content_Length (D : in Data) return Natural;
pragma Inline (Content_Length);
-- Get the value for "Content-Length:" header, this is the number of
-- bytes in the message body.
function Content_Type (D : in Data) return String;
pragma Inline (Content_Type);
-- Get value for "Content-Type:" header
function Host (D : in Data) return String;
pragma Inline (Host);
-- Get value for "Host:" header
function If_Modified_Since (D : in Data) return String;
pragma Inline (If_Modified_Since);
-- Get value for "If-Modified-Since:" header
function Keep_Alive (D : in Data) return Boolean;
pragma Inline (Keep_Alive);
-- Returns the flag if the current HTTP connection is keep-alive
function User_Agent (D : in Data) return String;
pragma Inline (User_Agent);
-- Get value for "User-Agent:" header
function Referer (D : in Data) return String;
pragma Inline (Referer);
-- Get value for "Referer:" header
function Is_Supported
(D : in Data;
Encoding : in Messages.Content_Encoding)
return Boolean;
-- Returns True if the content encoding scheme is sported by the client
function Preferred_Coding (D : in Data) return Messages.Content_Encoding;
-- Returns supported by AWS coding preferred by client from the
-- Accept-Coding header.
----------------
-- Connection --
----------------
function Peername (D : in Data) return String;
pragma Inline (Peername);
-- Returns the name of the peer (the name of the client computer)
function Socket (D : in Data) return Net.Socket_Type'Class;
pragma Inline (Socket);
-- Returns the socket used to transfert data between the client and
-- server.
----------
-- Data --
----------
function Multipart_Boundary (D : in Data) return String;
pragma Inline (Multipart_Boundary);
-- Get value for the boundary part in "Content-Type: ...; boundary=..."
-- parameter. This is a string that will be used to separate each chunk of
-- data in a multipart message.
subtype Stream_Element_Array is Ada.Streams.Stream_Element_Array;
function Binary_Data (D : in Data) return Stream_Element_Array;
pragma Inline (Binary_Data);
-- Returns the binary data message content.
-- Note that only the root part of a multipart/related message is returned.
-----------------
-- Attachments --
-----------------
function Attachments (D : in Data) return AWS.Attachments.List;
pragma Inline (Attachments);
-- Returns the list of Attachments for the request
-------------
-- Session --
-------------
function Has_Session (D : in Data) return Boolean;
pragma Inline (Has_Session);
-- Returns true if a session ID has been received
function Session (D : in Data) return Session.Id;
pragma Inline (Session);
-- Returns the Session ID for the request. Raises Constraint_Error if
-- server's session support not activated.
function Session_Created (D : in Data) return Boolean;
-- Returns True if session was just created and is going to be sent to
-- client.
function Session_Timed_Out (D : in Data) return Boolean;
-- Returns True if a previous session was timeout (even if a new session
-- has been created).
----------
-- SOAP --
----------
function Is_SOAP (D : in Data) return Boolean;
pragma Inline (Is_SOAP);
-- Returns True if it is a SOAP request. In this case SOAPAction return
-- the SOAPAction header and Payload returns the XML SOAP Payload message.
function SOAPAction (D : in Data) return String;
pragma Inline (SOAPAction);
-- Get value for "SOAPAction:" parameter. This is a standard header to
-- support SOAP over HTTP protocol.
function Payload (D : in Data) return String;
pragma Inline (Payload);
-- Returns the XML Payload message. XML payload is the actual SOAP
-- request. This is the root part of multipart/related SOAP message.
-----------
-- HTTPS --
-----------
function Check_Digest
(D : in Data;
Password : in String)
return Messages.Status_Code;
-- This function is used by the digest authentication to check if the
-- client password and authentication parameters are correct.
-- The password is not transferred between the client and the server,
-- the server check that the client knows the right password using the
-- MD5 checksum.
-- Returns Messages.S200 in case of successful authentication,
-- Messages.S400 in case of wrong authentication request
-- (RFC 2617 3.2.2, 3.2.2.5),
-- and Messages.S401 in case of authentication error.
function Check_Digest (D : in Data; Password : in String) return Boolean;
-- The same as above, but do not distinguish wrong requests and
-- authentication errors.
function Authorization_Mode (D : in Data) return Authorization_Type;
pragma Inline (Authorization_Mode);
-- Returns the type of the "Authorization:" parameter
function Authorization_Name (D : in Data) return String;
pragma Inline (Authorization_Name);
-- Returns "username" value in the "Authorization:" parameter
function Authorization_URI (D : in Data) return String;
pragma Inline (Authorization_URI);
-- Returns "uri" value in the "Authorization:" parameter
-- Note, it could differ from HTTP URI field, for example Mozilla browser
-- places http parameters to the authorization uri field.
function Authorization_Password (D : in Data) return String;
pragma Inline (Authorization_Password);
-- Returns "password" value in the "Authorization:" parameter
function Authorization_Realm (D : in Data) return String;
pragma Inline (Authorization_Realm);
-- Returns "realm" value in the "Authorization:" parameter
function Authorization_Nonce (D : in Data) return String;
pragma Inline (Authorization_Nonce);
-- Returns "nonce" value in the "Authorization:" parameter
function Authorization_NC (D : in Data) return String;
pragma Inline (Authorization_NC);
-- Returns "nc" value in the "Authorization:" parameter
function Authorization_CNonce (D : in Data) return String;
pragma Inline (Authorization_CNonce);
-- Returns "cnonce" value in the "Authorization:" parameter
function Authorization_QOP (D : in Data) return String;
pragma Inline (Authorization_QOP);
-- Retruns "qop" value in the "Authorization:" parameter
function Authorization_Response (D : in Data) return String;
pragma Inline (Authorization_Response);
-- Returns "response" value in the "Authorization:" parameter
function Authorization_Tail (D : in Data) return String;
pragma Inline (Authorization_Tail);
-- Returns precalculated part of digest composed of
-- Nonce, NC, CNonce, QOP, Method, URI authorization fields.
-- To build a full authorization response you can use:
--
-- MD5.Digest
-- (MD5.Digest (Username & ':' & Realm & ':' & Password)
-- & Authorization_Tail);
--
-- This method can be used to avoid sending a password over the network.
private
-- implementation removed
end AWS.Status;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2001 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Templates_Parser;
package AWS.Templates renames Templates_Parser;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2003 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Streams;
with Ada.Strings.Unbounded;
with AWS.Resources.Streams.Memory.ZLib;
with AWS.Utils;
package AWS.Translator is
package ZL renames AWS.Resources.Streams.Memory.ZLib;
------------
-- Base64 --
------------
function Base64_Encode
(Data : in Ada.Streams.Stream_Element_Array)
return String;
-- Encode Data using the base64 algorithm
function Base64_Encode (Data : in String) return String;
-- Same as above but takes a string as input
function Base64_Decode
(B64_Data : in String)
return Ada.Streams.Stream_Element_Array;
-- Decode B64_Data using the base64 algorithm
--------
-- QP --
--------
function QP_Decode
(QP_Data : in String)
return String;
-- Decode QP_Data using the Quoted Printable algorithm
------------------------------------
-- String to Stream_Element_Array --
------------------------------------
function To_String
(Data : in Ada.Streams.Stream_Element_Array)
return String;
pragma Inline (To_String);
-- Convert a Stream_Element_Array to a string. Note that as this routine
-- returns a String it should not be used with large array as this could
-- break the stack size limit. Use the routine below for large array.
function To_Stream_Element_Array
(Data : in String)
return Ada.Streams.Stream_Element_Array;
pragma Inline (To_Stream_Element_Array);
-- Convert a String to a Stream_Element_Array.
function To_Unbounded_String
(Data : in Ada.Streams.Stream_Element_Array)
return Ada.Strings.Unbounded.Unbounded_String;
-- Convert a Stream_Element_Array to an Unbounded_String.
--------------------------
-- Compress/Decompress --
--------------------------
subtype Compression_Level is ZL.Compression_Level;
Default_Compression : constant Compression_Level := ZL.Default_Compression;
function Compress
(Data : in Ada.Streams.Stream_Element_Array;
Level : in Compression_Level := Default_Compression;
Header : in ZL.Header_Type := ZL.Default_Header)
return Utils.Stream_Element_Array_Access;
-- Returns Data compressed with a standard deflate algorithm based on the
-- zlib library. The result is dynamically allocated and must be
-- explicitly freed.
function Decompress
(Data : in Ada.Streams.Stream_Element_Array;
Header : in ZL.Header_Type := ZL.Default_Header)
return Utils.Stream_Element_Array_Access;
-- Returns Data decompressed based on the zlib library. The results is
-- dynamically allocated and must be explicitly freed.
end AWS.Translator;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Strings.Maps;
with Ada.Strings.Unbounded;
package AWS.URL is
use Ada;
-- The general URL form as described in RFC2616 is:
--
-- http_URL = "http:" "//" host [ ":" port ] [ abs_path [ "?" query ]]
--
-- Note also that there are different RFC describing URL like the 2616 and
-- 1738 but they use different terminologies. Here we try to follow the
-- names used in RFC2616 but we have implemented some extensions at the
-- end of this package. For example the way Path and File are separated or
-- the handling of user/password which is explicitly not allowed in the
-- RFC but are used and supported in many browsers. Here are the extended
-- URL supported:
--
-- http://username:password@www.here.com:80/dir1/dir2/xyz.html?p=8&x=doh
-- | | | | | |
-- protocol host port path file parameters
--
-- <-- pathname -->
type Object is private;
URL_Error : exception;
Default_HTTP_Port : constant := 80;
Default_HTTPS_Port : constant := 443;
function Parse
(URL : in String;
Check_Validity : in Boolean := True;
Normalize : in Boolean := False)
return Object;
-- Parse an URL and return an Object representing this URL. It is then
-- possible to extract each part of the URL with the services bellow.
-- Raises URL_Error if Check_Validity is true and the URL reference a
-- resource above the web root directory.
procedure Normalize (URL : in out Object);
-- Removes all occurrences to parent directory ".." and current directory
-- ".". Raises URL_Error if the URL reference a resource above the Web
-- root directory.
function Is_Valid (URL : in Object) return Boolean;
-- Returns True if the URL is valid (does not reference directory above
-- the Web root).
function URL (URL : in Object) return String;
-- Returns full URL string, this can be different to the URL passed if it
-- has been normalized.
function Protocol_Name (URL : in Object) return String;
-- Returns "http" or "https" depending on the protocol used by URL.
function Host (URL : in Object) return String;
-- Returns the hostname
function Port (URL : in Object) return Positive;
-- Returns the port as a positive
function Port (URL : in Object) return String;
-- Returns the port as a string
function Abs_Path
(URL : in Object;
Encode : in Boolean := False)
return String;
-- Returns the absolute path. This is the complete resource reference
-- without the query part.
function Query
(URL : in Object;
Encode : in Boolean := False)
return String;
-- Returns the Query part of the URL or the empty string if none was
-- specified. Note that character '?' is not part of the Query and is
-- therefore not returned.
--
-- Below are extended API not part of the RFC 2616 URL specification
--
function User (URL : in Object) return String;
-- Returns user name part of the URL. Returns the empty string if user was
-- not specified.
function Password (URL : in Object) return String;
-- Returns user's password part of the URL. Returns the empty string if
-- password was not specified.
function Server_Name (URL : in Object) return String renames Host;
function Security (URL : in Object) return Boolean;
-- Returns True if it is a Secure HTTP (HTTPS) URL
function Path (URL : in Object; Encode : in Boolean := False) return String;
-- Returns the Path (including the leading slash). If Encode is True then
-- the URL will be encoded using the Encode routine.
function File (URL : in Object; Encode : in Boolean := False) return String;
-- Returns the File. If Encode is True then the URL will be encoded using
-- the Encode routine. Not that by File here we mean the latest part of
-- the URL, it could be a real file or a diretory into the filesystem.
-- Parent and current directories are part of the path.
function Parameters
(URL : in Object;
Encode : in Boolean := False)
return String;
-- Returns the Parameters (including the starting ? character). If Encode
-- is True then the URL will be encoded using the Encode routine.
function Pathname
(URL : in Object;
Encode : in Boolean := False)
return String
renames Abs_Path;
function Pathname_And_Parameters
(URL : in Object;
Encode : in Boolean := False)
return String;
-- Returns the pathname and the parameters. This is equivalent to:
-- Pathname & Parameters.
--
-- URL Encoding and Decoding
--
Default_Encoding_Set : constant Strings.Maps.Character_Set;
function Encode
(Str : in String;
Encoding_Set : in Strings.Maps.Character_Set := Default_Encoding_Set)
return String;
-- Encode Str into a URL-safe form. Many characters are forbiden into an
-- URL and needs to be encoded. A character is encoded by %XY where XY is
-- the character's ASCII hexadecimal code. For example a space is encoded
-- as %20.
function Decode (Str : in String) return String;
-- This is the oposite of Encode above
private
-- implementation removed
end AWS.URL;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2006 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
package SOAP is
-- This is the root package for the SOAP implementation. It supports
-- SOAP 1.1 specifications.
SOAP_Error : exception;
-- Will be raised when an error occurs in the SOAP implementation. The
-- exception message will described the problem.
Version : constant String := "1.4.0";
-- Version number for this implementation
No_SOAPAction : constant String := (1 => ASCII.Nul);
-- Value used to specify that there was no SOAPAction specified
end SOAP;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with AWS.Client;
with SOAP.Message.Payload;
with SOAP.Message.Response;
package SOAP.Client is
Not_Specified : String renames AWS.Client.No_Data;
function Call
(URL : in String;
P : in Message.Payload.Object;
SOAPAction : in String := No_SOAPAction;
User : in String := Not_Specified;
Pwd : in String := Not_Specified;
Proxy : in String := Not_Specified;
Proxy_User : in String := Not_Specified;
Proxy_Pwd : in String := Not_Specified;
Timeouts : in AWS.Client.Timeouts_Values := AWS.Client.No_Timeout)
return Message.Response.Object'Class;
-- Send a SOAP HTTP request to URL address. The P is the Payload and
-- SOAPAction is the required HTTP field. If it is not specified then the
-- URI (URL resource) will be used for the SOAPAction field. The complete
-- format is "URL & '#' & Procedure_Name" (Procedure_Name is retrieved
-- from the Payload object.
function Call
(Connection : in AWS.Client.HTTP_Connection;
SOAPAction : in String;
P : in Message.Payload.Object)
return Message.Response.Object'Class;
-- Idem as above, but use an already opened connection
end SOAP.Client;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2003 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- Dispatcher for SOAP requests.
with AWS.Dispatchers;
with AWS.Response;
with AWS.Status;
with SOAP.Message.Payload;
package SOAP.Dispatchers is
type Handler is abstract new AWS.Dispatchers.Handler with private;
-- This dispatcher will send SOAP and HTTP requests to different routines
type SOAP_Callback is
access function (SOAPAction : in String;
Payload : in Message.Payload.Object;
Request : in AWS.Status.Data)
return AWS.Response.Data;
-- This is the SOAP Server callback type. SOAPAction is the HTTP header
-- SOAPAction value, Payload is the parsed XML payload, request is the
-- HTTP request status.
function Dispatch_SOAP
(Dispatcher : in Handler;
SOAPAction : in String;
Payload : in Message.Payload.Object;
Request : in AWS.Status.Data)
return AWS.Response.Data is abstract;
-- This dispatch function is called for SOAP requests
function Dispatch_HTTP
(Dispatcher : in Handler;
Request : in AWS.Status.Data)
return AWS.Response.Data is abstract;
-- This dispatch function is called for standard HTTP requests
private
-- implementation removed
end SOAP.Dispatchers;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2003 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- Dispatch on a Callback procedures.
package SOAP.Dispatchers.Callback is
type Handler is new Dispatchers.Handler with private;
-- This is a simple wrapper around standard callback procedure (access to
-- function). It will be used to build dispatchers services and for the
-- main server callback.
function Create
(HTTP_Callback : in AWS.Response.Callback;
SOAP_Callback : in Dispatchers.SOAP_Callback)
return Handler;
-- Build a dispatcher for the specified callback.
private
-- implementation removed
end SOAP.Dispatchers.Callback;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Strings.Unbounded;
with SOAP.Name_Space;
with SOAP.Parameters;
package SOAP.Message is
use Ada.Strings.Unbounded;
type Object is tagged private;
function XML_Image (M : in Object) return Unbounded_String;
-- Returns the XML image for the wrapper and parameters. This is designed
-- to be used by Payload and Response object.
function Name_Space (M : in Object'Class) return SOAP.Name_Space.Object;
-- Returns message Namespace
function Wrapper_Name (M : in Object'class) return String;
-- Returns wrapper name
function Parameters (M : in Object'class) return SOAP.Parameters.List;
-- Returns the parameter
procedure Set_Name_Space
(M : in out Object'Class;
NS : in SOAP.Name_Space.Object);
-- Set message's Namespace
procedure Set_Wrapper_Name
(M : in out Object'Class;
Name : in String);
-- Set message's wrapper name
procedure Set_Parameters
(M : in out Object'Class;
P_Set : in SOAP.Parameters.List);
-- Set message's parameters
private
-- implementation removed
end SOAP.Message;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with AWS.Client;
with SOAP.Message.Payload;
with SOAP.Message.Response;
package SOAP.Message.XML is
function Load_Payload (XML : in String) return Message.Payload.Object;
-- Build a Payload object by parsing the XML payload string
function Load_Response
(Connection : in AWS.Client.HTTP_Connection)
return Message.Response.Object'Class;
-- Build a Response object (either a standard response or an error
-- response) by parsing the HTTP client connection output.
function Load_Response
(XML : in String) return Message.Response.Object'Class;
-- Build a Response object (either a standard response or an error
-- response) by parsing the XML response string.
function Load_Response
(XML : in Unbounded_String) return Message.Response.Object'Class;
-- As above but using an Unbounded_String
function Image (O : in Object'Class) return String;
-- Returns XML representation of object O
function Image (O : in Object'Class) return Unbounded_String;
-- Idem as above but returns an Unbounded_String instead of a String
end SOAP.Message.XML;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2000-2005 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Calendar;
with Ada.Strings.Unbounded;
with SOAP.Types;
package SOAP.Parameters is
use Ada.Strings.Unbounded;
Max_Parameters : constant := 50;
-- This is the maximum number of parameters supported by this
-- implementation.
type List is private;
function Argument_Count (P : in List) return Natural;
-- Returns the number of parameters in P
function Argument (P : in List; Name : in String) return Types.Object'Class;
-- Returns parameters named Name in P. Raises Types.Data_Error if not
-- found.
function Argument (P : in List; N : in Positive) return Types.Object'Class;
-- Returns Nth parameters in P. Raises Types.Data_Error if not found
function Exist (P : in List; Name : in String) return Boolean;
-- Returns True if parameter named Name exist in P and False otherwise
function Get (P : in List; Name : in String) return Types.Long;
-- Returns parameter named Name in P as a Long value. Raises
-- Types.Data_Error if this parameter does not exist or is not a Long.
function Get (P : in List; Name : in String) return Integer;
-- Returns parameter named Name in P as an Integer value. Raises
-- Types.Data_Error if this parameter does not exist or is not an Integer.
function Get (P : in List; Name : in String) return Types.Short;
-- Returns parameter named Name in P as a Short value. Raises
-- Types.Data_Error if this parameter does not exist or is not an Short.
function Get (P : in List; Name : in String) return Types.Byte;
-- Returns parameter named Name in P as a Byte value. Raises
-- Types.Data_Error if this parameter does not exist or is not a Byte.
function Get (P : in List; Name : in String) return Long_Float;
-- Returns parameter named Name in P as a Float value. Raises
-- Types.Data_Error if this parameter does not exist or is not a Float.
function Get (P : in List; Name : in String) return Long_Long_Float;
-- Returns parameter named Name in P as a Float value. Raises
-- Types.Data_Error if this parameter does not exist or is not a Double.
function Get (P : in List; Name : in String) return String;
-- Returns parameter named Name in P as a String value. Raises
-- Types.Data_Error if this parameter does not exist or is not a String.
function Get (P : in List; Name : in String) return Unbounded_String;
-- Idem as above, but return an Unbounded_String
function Get (P : in List; Name : in String) return Boolean;
-- Returns parameter named Name in P as a Boolean value. Raises
-- Types.Data_Error if this parameter does not exist or is not a Boolean.
function Get (P : in List; Name : in String) return Ada.Calendar.Time;
-- Returns parameter named Name in P as a Time value. Raises
-- Types.Data_Error if this parameter does not exist or is not a time.
function Get (P : in List; Name : in String) return Types.Unsigned_Long;
-- Returns parameter named Name in P as a Unsigned_Long value. Raises
-- Types.Data_Error if this parameter does not exist or is not an
-- Unsigned_Long.
function Get (P : in List; Name : in String) return Types.Unsigned_Int;
-- Returns parameter named Name in P as a Unsigned_Int value. Raises
-- Types.Data_Error if this parameter does not exist or is not an
-- Unsigned_Int.
function Get (P : in List; Name : in String) return Types.Unsigned_Short;
-- Returns parameter named Name in P as a Unsigned_Short value. Raises
-- Types.Data_Error if this parameter does not exist or is not an
-- Unsigned_Short.
function Get (P : in List; Name : in String) return Types.Unsigned_Byte;
-- Returns parameter named Name in P as a Unsigned_Byte value. Raises
-- Types.Data_Error if this parameter does not exist or is not an
-- Unsigned_Byte.
function Get (P : in List; Name : in String) return Types.SOAP_Base64;
-- Returns parameter named Name in P as a SOAP Base64 value. Raises
-- Types.Data_Error if this parameter does not exist or is not a SOAP
-- Base64.
function Get (P : in List; Name : in String) return Types.SOAP_Record;
-- Returns parameter named Name in P as a SOAP Struct value. Raises
-- Types.Data_Error if this parameter does not exist or is not a SOAP
-- Struct.
function Get (P : in List; Name : in String) return Types.SOAP_Array;
-- Returns parameter named Name in P as a SOAP Array value. Raises
-- Types.Data_Error if this parameter does not exist or is not a SOAP
-- Array.
------------------
-- Constructors --
------------------
function "&" (P : in List; O : in Types.Object'Class) return List;
function "+" (O : in Types.Object'Class) return List;
----------------
-- Validation --
----------------
procedure Check (P : in List; N : in Natural);
-- Checks that there is exactly N parameters or raise Types.Data_Error
procedure Check_Integer (P : in List; Name : in String);
-- Checks that parameter named Name exist and is an Integer value
procedure Check_Float (P : in List; Name : in String);
-- Checks that parameter named Name exist and is a Float value
procedure Check_Boolean (P : in List; Name : in String);
-- Checks that parameter named Name exist and is a Boolean value
procedure Check_Time_Instant (P : in List; Name : in String);
-- Checks that parameter named Name exist and is a Time_Instant value
procedure Check_Base64 (P : in List; Name : in String);
-- Checks that parameter named Name exist and is a Base64 value
procedure Check_Null (P : in List; Name : in String);
-- Checks that parameter named Name exist and is a Null value
procedure Check_Record (P : in List; Name : in String);
-- Checks that parameter named Name exist and is a Record value
procedure Check_Array (P : in List; Name : in String);
-- Checks that parameter named Name exist and is an Array value
private
-- implementation removed
end SOAP.Parameters;
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2001-2006 --
-- AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- This package contains all SOAP types supported by this implementation.
-- Here are some notes about adding support for a new SOAP type (not a
-- container) and the corresponding WSDL support:
--
-- 1. Add new type derived from scalar in this package. Implements all
-- inherited routines (Image, XML_Image and XML_Type). Implements also
-- a constructor for this new type and a routine named V to get the
-- value as an Ada type.
--
-- 2. In SOAP.Parameters add corresponding Get routine.
--
-- 3. In SOAP.WSDL, add the new type name in Parameter_Type.
--
-- 4. Add support for this new type in all SOAP.WSDL routines. All routines
-- are using a case statement to be sure that it won't compile without
-- fixing it first. For obvious reasons, only SOAP.WSDL.To_Type and
-- SOAP.WSDL.From_Ada are not using a case statement, be sure to do the
-- right Change There.
--
-- 5. Finaly add support for this type in SOAP.Message.XML. Add this type
-- into Type_State, write the corresponding parse procedure and fill entry
-- into Handlers. Again after adding the proper type into Type_State the
-- compiler will issue errors where changes are needed.
with Ada.Calendar;
with Ada.Finalization;
with Ada.Strings.Unbounded;
with SOAP.Name_Space;
package SOAP.Types is
use Ada.Strings.Unbounded;
Data_Error : exception;
-- Raised when a variable has not the expected type
type Object is abstract tagged private;
-- Root type for all SOAP types defined in this package
type Object_Access is access all Object'Class;
type Object_Safe_Pointer is tagged private;
-- A safe pointer to a SOAP object, such objects are controlled so the
-- memory is freed automatically.
type Object_Set is array (Positive range <>) of Object_Safe_Pointer;
-- A set of SOAP types. This is used to build arrays or records. We use
-- Positive for the index to have the item index map the SOAP array
-- element order.
function Image (O : in Object) return String;
-- Returns O value image.
function XML_Image (O : in Object) return String;
-- Returns O value encoded for use by the Payload object or Response
-- object.
function XML_Type (O : in Object) return String;
-- Returns the XML type for the object.
function Name (O : in Object'Class) return String;
-- Returns name for object O.
function "+" (O : in Object'Class) return Object_Safe_Pointer;
-- Allocate an object into the heap and return a safe pointer to it.
function "-" (O : in Object_Safe_Pointer) return Object'Class;
-- Returns the object associated with the safe pointer.
type Scalar is abstract new Object with private;
-- Scalar types are using a by-copy semantic.
type Composite is abstract new Object with private;
-- Composite types are using a by-reference semantic for efficiency
-- reason. Not that these types are not thread safe.
function V (C : in Composite) return Object_Set is abstract;
--------------
-- Any Type --
--------------
XML_Any_Type : aliased constant String := "xsd:anyType";
type XSD_Any_Type is new Object with private;
function Image (O : in XSD_Any_Type) return String;
function XML_Image (O : in XSD_Any_Type) return String;
function XML_Type (O : in XSD_Any_Type) return String;
function Any
(V : in Object'Class;
Name : in String := "item") return XSD_Any_Type;
function V (O : in XSD_Any_Type) return Object_Access;
-----------
-- Array --
-----------
XML_Array : constant String := "soapenc:Array";
XML_Undefined : aliased constant String := "xsd:ur-type";
type SOAP_Array is new Composite with private;
function Image (O : in SOAP_Array) return String;
function XML_Image (O : in SOAP_Array) return String;
function XML_Type (O : in SOAP_Array) return String;
function A
(V : in Object_Set;
Name : in String;
Type_Name : in String := "")
return SOAP_Array;
-- Type_Name of the array's elements, if not specified it will be computed
-- based on element's name.
function Size (O : in SOAP_Array) return Natural;
-- Returns the number of item into the array
function V (O : in SOAP_Array; N : in Positive) return Object'Class;
-- Returns SOAP_Array item at position N
function V (O : in SOAP_Array) return Object_Set;
------------
-- Base64 --
------------
XML_Base64 : aliased constant String := "soapenc:base64";
XML_Base64_Binary : constant String := "xsd:base64Binary";
type SOAP_Base64 is new Scalar with private;
function Image (O : in SOAP_Base64) return String;
function XML_Image (O : in SOAP_Base64) return String;
function XML_Type (O : in SOAP_Base64) return String;
function B64
(V : in String;
Name : in String := "item")
return SOAP_Base64;
function V (O : in SOAP_Base64) return String;
-------------
-- Boolean --
-------------
XML_Boolean : aliased constant String := "xsd:boolean";
type XSD_Boolean is new Scalar with private;
function Image (O : in XSD_Boolean) return String;
function XML_Image (O : in XSD_Boolean) return String;
function XML_Type (O : in XSD_Boolean) return String;
function B (V : in Boolean; Name : in String := "item") return XSD_Boolean;
function V (O : in XSD_Boolean) return Boolean;
----------
-- Byte --
----------
type Byte is range -2**7 .. 2**7 - 1;
XML_Byte : aliased constant String := "xsd:byte";
type XSD_Byte is new Scalar with private;
function Image (O : in XSD_Byte) return String;
function XML_Image (O : in XSD_Byte) return String;
function XML_Type (O : in XSD_Byte) return String;
function B (V : in Byte; Name : in String := "item") return XSD_Byte;
function V (O : in XSD_Byte) return Byte;
------------
-- Double --
------------
XML_Double : aliased constant String := "xsd:double";
type XSD_Double is new Scalar with private;
function Image (O : in XSD_Double) return String;
function XML_Image (O : in XSD_Double) return String;
function XML_Type (O : in XSD_Double) return String;
function D
(V : in Long_Long_Float;
Name : in String := "item")
return XSD_Double;
function V (O : in XSD_Double) return Long_Long_Float;
-----------
-- Float --
-----------
XML_Float : aliased constant String := "xsd:float";
type XSD_Float is new Scalar with private;
function Image (O : in XSD_Float) return String;
function XML_Image (O : in XSD_Float) return String;
function XML_Type (O : in XSD_Float) return String;
function F (V : in Long_Float; Name : in String := "item") return XSD_Float;
function V (O : in XSD_Float) return Long_Float;
-------------
-- Integer --
-------------
XML_Int : aliased constant String := "xsd:int";
type XSD_Integer is new Scalar with private;
function Image (O : in XSD_Integer) return String;
function XML_Image (O : in XSD_Integer) return String;
function XML_Type (O : in XSD_Integer) return String;
function I (V : in Integer; Name : in String := "item") return XSD_Integer;
function V (O : in XSD_Integer) return Integer;
----------
-- Long --
----------
type Long is range -2**63 .. 2**63 - 1;
XML_Long : aliased constant String := "xsd:long";
type XSD_Long is new Scalar with private;
function Image (O : in XSD_Long) return String;
function XML_Image (O : in XSD_Long) return String;
function XML_Type (O : in XSD_Long) return String;
function L (V : in Long; Name : in String := "item") return XSD_Long;
function V (O : in XSD_Long) return Long;
----------
-- Null --
----------
XML_Null : constant String := "1";
type XSD_Null is new Scalar with private;
function XML_Image (O : in XSD_Null) return String;
function XML_Type (O : in XSD_Null) return String;
function N (Name : in String := "item") return XSD_Null;
------------
-- Record --
------------
type SOAP_Record is new Composite with private;
function Image (O : in SOAP_Record) return String;
function XML_Image (O : in SOAP_Record) return String;
function XML_Type (O : in SOAP_Record) return String;
function R
(V : in Object_Set;
Name : in String;
Type_Name : in String := "")
return SOAP_Record;
-- If Type_Name is omitted then the type name is the name of the record.
-- Type_Name must be specified for item into an array for example.
function V (O : in SOAP_Record; Name : in String) return Object'Class;
-- Returns SOAP_Record field named Name
function V (O : in SOAP_Record) return Object_Set;
-----------
-- Short --
-----------
type Short is range -2**15 .. 2**15 - 1;
XML_Short : aliased constant String := "xsd:short";
type XSD_Short is new Scalar with private;
function Image (O : in XSD_Short) return String;
function XML_Image (O : in XSD_Short) return String;
function XML_Type (O : in XSD_Short) return String;
function S (V : in Short; Name : in String := "item") return XSD_Short;
function V (O : in XSD_Short) return Short;
------------
-- String --
------------
XML_String : aliased constant String := "xsd:string";
type XSD_String is new Scalar with private;
function Image (O : in XSD_String) return String;
function XML_Image (O : in XSD_String) return String;
function XML_Type (O : in XSD_String) return String;
function S
(V : in String;
Name : in String := "item")
return XSD_String;
function S
(V : in Unbounded_String;
Name : in String := "item")
return XSD_String;
function V (O : in XSD_String) return String;
function V (O : in XSD_String) return Unbounded_String;
-----------------
-- TimeInstant --
-----------------
XML_Time_Instant : aliased constant String := "xsd:timeInstant";
XML_Date_Time : constant String := "xsd:dateTime";
type XSD_Time_Instant is new Scalar with private;
function Image (O : in XSD_Time_Instant) return String;
function XML_Image (O : in XSD_Time_Instant) return String;
function XML_Type (O : in XSD_Time_Instant) return String;
subtype TZ is Integer range -11 .. +11;
GMT : constant TZ := 0;
function T
(V : in Ada.Calendar.Time;
Name : in String := "item";
Timezone : in TZ := GMT)
return XSD_Time_Instant;
function V (O : in XSD_Time_Instant) return Ada.Calendar.Time;
-- Returns a GMT date and time
-------------------
-- Unsigned_Long --
-------------------
type Unsigned_Long is mod 2**64;
XML_Unsigned_Long : aliased constant String := "xsd:unsignedLong";
type XSD_Unsigned_Long is new Scalar with private;
function Image (O : in XSD_Unsigned_Long) return String;
function XML_Image (O : in XSD_Unsigned_Long) return String;
function XML_Type (O : in XSD_Unsigned_Long) return String;
function UL
(V : in Unsigned_Long;
Name : in String := "item") return XSD_Unsigned_Long;
function V (O : in XSD_Unsigned_Long) return Unsigned_Long;
------------------
-- Unsigned_Int --
------------------
type Unsigned_Int is mod 2**32;
XML_Unsigned_Int : aliased constant String := "xsd:unsignedInt";
type XSD_Unsigned_Int is new Scalar with private;
function Image (O : in XSD_Unsigned_Int) return String;
function XML_Image (O : in XSD_Unsigned_Int) return String;
function XML_Type (O : in XSD_Unsigned_Int) return String;
function UI
(V : in Unsigned_Int;
Name : in String := "item") return XSD_Unsigned_Int;
function V (O : in XSD_Unsigned_Int) return Unsigned_Int;
--------------------
-- Unsigned_Short --
--------------------
type Unsigned_Short is mod 2**16;
XML_Unsigned_Short : aliased constant String := "xsd:unsignedShort";
type XSD_Unsigned_Short is new Scalar with private;
function Image (O : in XSD_Unsigned_Short) return String;
function XML_Image (O : in XSD_Unsigned_Short) return String;
function XML_Type (O : in XSD_Unsigned_Short) return String;
function US
(V : in Unsigned_Short;
Name : in String := "item") return XSD_Unsigned_Short;
function V (O : in XSD_Unsigned_Short) return Unsigned_Short;
-------------------
-- Unsigned_Byte --
-------------------
type Unsigned_Byte is mod 2**8;
XML_Unsigned_Byte : aliased constant String := "xsd:unsignedByte";
type XSD_Unsigned_Byte is new Scalar with private;
function Image (O : in XSD_Unsigned_Byte) return String;
function XML_Image (O : in XSD_Unsigned_Byte) return String;
function XML_Type (O : in XSD_Unsigned_Byte) return String;
function UB
(V : in Unsigned_Byte;
Name : in String := "item") return XSD_Unsigned_Byte;
function V (O : in XSD_Unsigned_Byte) return Unsigned_Byte;
-----------------
-- Enumeration --
-----------------
type SOAP_Enumeration is new Scalar with private;
function Image (O : in SOAP_Enumeration) return String;
function XML_Image (O : in SOAP_Enumeration) return String;
function XML_Type (O : in SOAP_Enumeration) return String;
function E
(V : in String;
Type_Name : in String;
Name : in String := "item")
return SOAP_Enumeration;
function V (O : in SOAP_Enumeration) return String;
---------
-- Get --
---------
-- It is possible to pass an XSD_Any_Type to all get routines below. The
-- proper value will be returned if the XSD_Any_Type is actually of this
-- type.
function Get (O : in Object'Class) return XSD_Any_Type;
-- Returns O value as an XSD_Any_Type. Raises Data_Error if O is not a
-- SOAP anyType.
function Get (O : in Object'Class) return Long;
-- Returns O value as a Long. Raises Data_Error if O is not a SOAP
-- Long.
function Get (O : in Object'Class) return Integer;
-- Returns O value as an Integer. Raises Data_Error if O is not a SOAP
-- Integer.
function Get (O : in Object'Class) return Short;
-- Returns O value as a Short. Raises Data_Error if O is not a SOAP
-- Short.
function Get (O : in Object'Class) return Byte;
-- Returns O value as a Byte. Raises Data_Error if O is not a SOAP
-- Byte.
function Get (O : in Object'Class) return Long_Float;
-- Returns O value as a Long_Float. Raises Data_Error if O is not a SOAP
-- Float.
function Get (O : in Object'Class) return Long_Long_Float;
-- Returns O value as a Long_Long_Float. Raises Data_Error if O is not a
-- SOAP Double.
function Get (O : in Object'Class) return String;
-- Returns O value as a String. Raises Data_Error if O is not a SOAP
-- String.
function Get (O : in Object'Class) return Unbounded_String;
-- As above but returns an Unbounded_String
function Get (O : in Object'Class) return Boolean;
-- Returns O value as a Boolean. Raises Data_Error if O is not a SOAP
-- Boolean.
function Get (O : in Object'Class) return Ada.Calendar.Time;
-- Returns O value as a Time. Raises Data_Error if O is not a SOAP
-- Time.
function Get (O : in Object'Class) return Unsigned_Long;
-- Returns O value as a Unsigned_Long. Raises Data_Error if O is not a SOAP
-- Unsigned_Long.
function Get (O : in Object'Class) return Unsigned_Int;
-- Returns O value as a Unsigned_Byte. Raises Data_Error if O is not a SOAP
-- Unsigned_Int.
function Get (O : in Object'Class) return Unsigned_Short;
-- Returns O value as a Unsigned_Short. Raises Data_Error if O is not a
-- SOAP Unsigned_Short.
function Get (O : in Object'Class) return Unsigned_Byte;
-- Returns O value as a Unsigned_Byte. Raises Data_Error if O is not a SOAP
-- Unsigned_Byte.
function Get (O : in Object'Class) return SOAP_Base64;
-- Returns O value as a SOAP Base64. Raises Data_Error if O is not a SOAP
-- Base64 object.
function Get (O : in Object'Class) return SOAP_Record;
-- Returns O value as a SOAP Struct. Raises Data_Error if O is not a SOAP
-- Struct.
function Get (O : in Object'Class) return SOAP_Array;
-- Returns O value as a SOAP Array. Raises Data_Error if O is not a SOAP
-- Array.
----------------
-- Name space --
----------------
procedure Set_Name_Space
(O : in out Object'Class;
NS : in Name_Space.Object);
-- Set the name space for object O
function Name_Space (O : in Object'Class) return Name_Space.Object;
-- Returns name space associated with object O
private
-- implementation removed
end SOAP.Types;