ircchat/irc.php

<?php

// Prevent PHP from stopping the script after 30 sec
set_time_limit(0);

include_once("config.php");

// Change these values!
$username = $argv[1];

if(!isset($username) || $username == "") {
	echo "Username not given...";
	exit(1);
}

echo "Starting client...";

file_put_contents(".$username.socket", "Welcome");
chmod(".$username.socket", 0777);

file_put_contents(".$username.pingfile", "pong");
chmod(".$username.pingfile", 0777);

// Opening the socket to the Rizon network
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);

socket_connect($socket, $server, $port);


// Send auth info
// fputs($socket, "PASS " . $password . "\n");
echo "Connected, sending nickname to IRC server...";

$nickline = "NICK " . $username . "\n";
$userline = "USER " . $username . " 0 * :" . $username . "'s Bot\n";

socket_write($socket, $nickline, strlen($nickline));
socket_write($socket, $userline, strlen($userline));

// Join channel
foreach($channels as $channel) {
	$channelline = "JOIN " . $channel . "\n";
	socket_write($socket, $channelline, strlen($channelline));
}

// Force an endless while
while (1) {
    // Continue the rest of the script here
    
    while($bytes = socket_recv($socket, $r_data, 2048, MSG_DONTWAIT) !== '') {
		if($bytes !== FALSE) {
			//$data = socket_read($socket, 2048, PHP_NORMAL_READ);
			$data = $r_data;
		}
        // If client sent something, push it to the IRC server!
        if(file_exists(".$username.push")) {
			$pushFile = file_get_contents(".$username.push");
			socket_write($socket, $pushFile, strlen($pushFile));
			unlink(".$username.push");
		}
        
        // Check if web client still up, if no pong after 15 seconds, connection closed.
        if(!file_exists(".$username.pingfile") || (date("YmdHis.", filemtime(".$username.pingfile"))<(date("YmdHis.", filemtime(".$username.pingfile"))-10))) {
			echo "Exiting, leaving IRC server...";
			$quitline = "QUIT :Timed out\n";
			socket_write($socket, $quitline, strlen($quitline));
			socket_close($socket);
            exit(1);
		}
		
		if(isset($data)) {
			$stringMsg = explode('PRIVMSG', $data);
			$socketFileContents = file_get_contents(".$username.socket");
			file_put_contents(".$username.socket", $socketFileContents . $data);
	
			$ex = explode(' ', $data);
        
			// Send PONG back to the server
			if ($ex[0] == "PING") {
				echo "PONG to IRC server...";
				$pongline = "PONG " . $ex[1] . "\n";
				socket_write($socket, $pongline, strlen($pongline));
			}
		}
		
        usleep(500);
	}
}
?>