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------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2002-2012, AdaCore --
-- --
-- This is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the --
-- Free Software Foundation; either version 3, or (at your option) any --
-- later version. This software 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 --
-- distributed with this software; see file COPYING3. If not, go --
-- to http://www.gnu.org/licenses for a complete copy of the license. --
------------------------------------------------------------------------------
with Ada.Strings.Unbounded;
with Ada.Text_IO;
with GNAT.Command_Line;
with AWS.Jabber.Client;
procedure Jabber_Demo is
use Ada;
use Ada.Strings.Unbounded;
use AWS.Jabber.Client;
Chat_Command : constant String := "/msg";
procedure Chat
(Account : AWS.Jabber.Client.Account; Command : String);
-- Parse and execute the chat command
procedure Parse_Command_Line;
-- Parse the command line argument and set the variable below
procedure Display_Usage;
-- Ouput the usage information to the standard output
Host : Unbounded_String;
Login : Unbounded_String;
Pwd : Unbounded_String;
----------
-- Chat --
----------
procedure Chat
(Account : AWS.Jabber.Client.Account;
Command : String)
is
Sent : Boolean := False;
begin
Parse_Command : for K in Command'Range loop
if Command (K) = ' ' then
Send (Account => Account,
JID => Jabber_ID (Command (Command'First .. K - 1)),
Content => Command (K + 1 .. Command'Last));
Sent := True;
exit Parse_Command;
end if;
end loop Parse_Command;
if not Sent then
-- Invalid line !
Text_IO.Put_Line ("Can't parse line");
end if;
end Chat;
-------------------
-- Display_Usage --
-------------------
procedure Display_Usage is
use Text_IO;
begin
New_Line;
Put_Line ("Usage : jabber_demo -h host -l login -p pwd");
New_Line;
Put_Line (" -h Host Jabber host server");
Put_Line (" -l login Login for the Jabber server account");
Put_Line (" -p password Password for the Jabber server account");
New_Line;
end Display_Usage;
------------------------
-- Parse_Command_Line --
------------------------
procedure Parse_Command_Line is
begin
loop
case GNAT.Command_Line.Getopt ("h: l: p:") is
when ASCII.NUL =>
exit;
when 'h' =>
Host := To_Unbounded_String (GNAT.Command_Line.Parameter);
when 'l' =>
Login := To_Unbounded_String (GNAT.Command_Line.Parameter);
when 'p' =>
Pwd := To_Unbounded_String (GNAT.Command_Line.Parameter);
when others =>
raise Program_Error; -- cannot occurs!
end case;
end loop;
exception
when others =>
Display_Usage;
end Parse_Command_Line;
begin
Parse_Command_Line;
if Host = Null_Unbounded_String
or else Login = Null_Unbounded_String
or else Pwd = Null_Unbounded_String
then
Display_Usage;
return;
end if;
Jabber_Session : declare
Account : AWS.Jabber.Client.Account;
begin
Set_Host (Account, To_String (Host));
Set_Login_Information (Account, To_String (Login), To_String (Pwd));
Connect (Account);
Text_IO.Put_Line ("Type /help for help");
Main_Loop : loop
Process_Line : declare
Line : constant String := Text_IO.Get_Line;
begin
if Line (Line'First .. Line'First + Chat_Command'Length - 1)
= Chat_Command
then
Chat
(Account,
Line (Line'First + Chat_Command'Length + 1 .. Line'Last));
elsif Line = "/help" then
Text_IO.Put_Line ("Type /msg user@server A chat message");
Text_IO.Put_Line (" to send a message to user@server");
Text_IO.Put_Line ("Type /quit to quit");
elsif Line = "/quit" then
exit Main_Loop;
else
Text_IO.Put_Line ("Error can't parse line");
end if;
end Process_Line;
end loop Main_Loop;
Text_IO.Put_Line ("Closing");
Close (Account);
end Jabber_Session;
end Jabber_Demo;
|
