<?php
/***************************************************************************
* SimpleServer Example 3
* ----------------------
* begin : Saturday, Dec 18, 2004 - 17:30
* copyright : (C) 2004 MC Breit
* email : [email protected] - MCB.CC - Free and Open Sources
* last modified : 18/12/04 - 18:01 - MC Breit
* version : 1.0.0
*
***************************************************************************/
/***************************************************************************
*
* This program 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 example will show how easy to create your own Callback Based Server
*
* What should our FOO Server do?
* Our FOO Server should listen to port 8000 on the local ip address
* 127.0.0.1 and waiting for clients conntcting in.
* While a client is connected, it should wait that the client is
* sending a "\r\n" and the return the message the cleint sended before.
* If the client entered "SHUTDOWN" it should close the connection to the
* client and say "Bye bye..".
* When the client types "FOO" it should print "BAR" and remove the handle
* of foo, but should initiate a handle to "BAR". Then if "BAR" was typed
* by the client the same should happend in reverse was..
*
* To test the server, you can run it using the console and run telnet
* in an other console window.
* Then connect to "127.0.0.1 port 8000" with telnet and type anything.
* For example under Windows you can exec "cmd" and then type in:
* C:\> telnet 127.0.0.1 8000
* After that you should see the welcome message.
* Now, to test the server you can type the following:
* FOO is cool!
* FOO Rulez, yeha!
* BAR is nice to, well..
* FOO
* BAR BAR BAR BAR!
* FAZ
* SHUTDOWN
* Should produce some output like these:
* >> C:\> telnet 127.0.0.1 8000
* Welcome to my FOO Server!
* >> FOO is cool!
* BAR: is cool!
* >> FOO Rulez, yeha!
* Unknown signal: FOO
* >> BAR is nice too, well..
* FOO: is nice too, well..
* >> FOO
* BAR:
* >> BAR BAR BAR BAR!
* FOO: BAR BAR BAR!
* >> FAZ
* Unknown signal: FAZ
* >> SHUTDOWN
* ByeBye
*
* Connection lost.
* C:\> _
*
* !! Important: Dont forget your firewall settings while testing !!
***************************************************************************/
//Kill the max_ex_time (on pure installations not needed)
set_time_limit(0);
//Including the main class..
include('SimpleServerCallback.class.php');
//Creating a new server object using port 8000 and the local ip "127.0.0.1".
$srv = &new SimpleServerCallback(8000, '127.0.0.1');
//Register our callbacks..
$srv->register_callback(SSRV_CBS_CON, 'say_hello'); //The connected in signal..
$srv->register_callback('FOO', 'callback_foo'); //The "FOO" signal..
$srv->register_callback('SHUTDOWN', 'callback_shutdown'); //THe "SHUTDOWN" signal..
$srv->register_callback(SSRV_CBS_DEF, 'callback_default'); //All the unknown signals..
//Main loop to listen for clients..
$srv->main();
//Any errors inside the main loop?
if( $error = $srv->get_error_str() )
{
print $error;
}
//The functions we use to handle the callbacks..
function say_hello(&$srv, $signal, $params)
{
//Say hello to the new client..
$srv->put('Welcome to my FOO Server!'."\r\n");
return TRUE;
}
function callback_foo(&$srv, $signal, $params)
{
//Return "BAR: .."
$srv->put('BAR: '."$params\r\n");
//Register the BAR signal..
$srv->register_callback('BAR', 'callback_bar');
//Return FALSE to unregister the own signal..
return FALSE;
}
function callback_bar(&$srv, $signal, $params)
{
//Return "FOO: .."
$srv->put('FOO: '."$params\r\n");
//Register the FOO signal..
$srv->register_callback('FOO', 'callback_foo');
//Return FALSE to unregister the own signal..
return FALSE;
}
function callback_shutdown(&$srv, $signal, $params)
{
//Send the Bye bye.. message to client..
$srv->put('ByeBye');
//Quit from main loop..
$srv->main_quit();
return TRUE;
}
function callback_default(&$srv, $signal, $params)
{
//Tell the client that I dont know about this signal..
$srv->put('Unknown signal: '.$signal."\r\n");
return TRUE;
}
?>
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