IRC bot

client.ini

; default servers to send chat messages to
; currently no way to change this in the client
; this functionality will come in the future.
server = "pine"
channel = "#Pine64"

irc.php

<?php
// Text file for login output
define('logFile', './logs/login.txt');

/*spl_autoload_register(function ($class_name) {
    include $class_name . '.php';
});*/

$IRC_Servers = parse_ini_file('servers.ini', true); # Load Config from INI file
$IRC_Config = parse_ini_file('client.ini'); # Load Config from INI file
$swears = array_map('trim', file("http://www.bannedwordlist.com/lists/swearWords.txt"));

$running = true;

foreach($IRC_Servers as $ID => $config) {
    if(is_array($config) && isset($config['host'])) {
        $Servers[$ID] = new IRC_Server($ID, $config['host'], $config['port'], $config['user'], $config['pass'], $config['channels'], $config['ignored']);
    }
}

stream_set_blocking(STDIN, 0);

while($running) {
    $active = 0;
    foreach($Servers as $ID => $IRC) {
        if($IRC->serverActive) {
            $IRC->runEvents();
            $active++;
        } else {
            # Connection has failed.
        }
    }
    if($active == 0) {
        # All servers closed
        exit();
    }
    $line = stream_get_line(STDIN, 1024, PHP_EOL);
    if($line !== false) {
        # User Typed Something. handle it!
        $Servers[$IRC_Config['server']]->_PRIVMSG($IRC_Config['channel'], $line);
    }
}

class IRC_Server {
    private $chatServer;
    public $serverActive = true;

    protected $serverID;

    private $username;

    private $startChannels;
    private $activeChannels;
    private $ignoredChannels;

    private $eventHandlers = array(
        '004' => 'joinStartChannels',
        '372' => 'writeMOTD',
        'PRIVMSG' => 'handleServerMessage',
        #'JOIN' => 'handleJoin',
        #'PART' => 'handlePart',
        #'QUIT' => 'handlePart'

        );

    public function __construct($serverID, $host, $port, $user, $pass, $channels, $ignoredChannels){
        $this->serverID = $serverID;
        $this->username = $user;
        $this->ignoredChannels = $ignoredChannels;

        $this->chatServer = @fsockopen($host, $port, $errno, $errstr, 15);
        stream_set_timeout($this->chatServer, 0, 200000);

        if ($this->chatServer) {
            // login success
            fwrite($this->chatServer, "PASS {$pass}\r\n");
            fwrite($this->chatServer, "NICK {$user}\r\n");
            fwrite($this->chatServer, "USER {$user} localhost {$host} : T3ch IRC BOT\r\n");
            #fwrite($this->chatServer, "JOIN " . $config['channel'] . " \r\n");

            $this->startChannels = $channels;

            file_put_contents(logFile, "IRC login succeeded at ".date("H:i:s Y-m-d").".\r\n");

            echo "IRC login succeeded.\r\n";
        } else {
            $this->serverActive = false;
            file_put_contents(logFile, "IRC login failed at ".date("H:i:s Y-m-d").". Error ".$errno.": ".$errstr."\r\n");

            echo "IRC login failed.\r\n";
        }

        foreach($channels as $channel) {
            #$this->_JOIN($channel);
        }
    }

    public function __destruct() {
        foreach($channels as $channel) {
            #$this->_PART($channel);
        }
    }

    public function runEvents() {
        if (!$this->chatServer) {
            echo 'not active. ignoring.';
            return false;
        }

        if(feof($this->chatServer)) {
            echo 'Connection Closed.';
            $this->serverActive = false;
            return false;
        }

        $line = fgets($this->chatServer, 512);
        #var_dump($line)
        if (strlen($line) > 0) {
            $tokens = array_map('trim', explode(' ',$line));

            if ($tokens[0] == 'PING') {
                fwrite($this->chatServer, "PONG {$tokens[1]}\r\n");
                #echo "ping-pong\r\n";
            } else {
                $fget_userString = array_shift($tokens);
                $fget_user = substr($fget_userString, 1, strpos($fget_userString, '!') - 1);
                $fget_command = array_shift($tokens);
                #$fget_target = substr(array_shift($tokens), 1);
                $fget_target = array_shift($tokens);
                $fget_text = trim(substr(implode(' ', $tokens), 1));

                if(isset($this->eventHandlers[$fget_command])) {
                    call_user_func(array($this, $this->eventHandlers[$fget_command]), $fget_userString, $fget_user, $fget_command, $fget_target, $fget_text);
                }
            }
            flush();
        }
    }

    public function joinStartChannels() {
        foreach($this->startChannels as $channel) {
            $this->_JOIN($channel);
        }
    }

    public function writeMOTD($userString, $user, $command, $target, $text) {
        echo "motd: {$text}\r\n";
    }

    public function handleServerMessage($userString, $user, $command, $target, $text) {
        echo date("[h:i:s] ") . $this->formatTarget($user) . " @ " . $this->formatTarget($target) . ":\r\n{$text}\r\n";
        if($target == $this->username) {
            # PM to this user
            $target = $user;
        }
        if(in_array($target, $this->ignoredChannels)) {
            #return false;
        }
        $args = str_getcsv($text, ' ');
        if($args[0] == chr(1).'PING') {
            $this->_PRIVMSG($target, chr(1)."PONG {$args[1]}");
        }
        if($args[0] == chr(1).'ACTION') {
            if($args[1] == 'slaps' && $args[2] == 'T3charmy') {
                $this->_PRIVMSG($target, "How dare you slap my owner. Prepare for PAIN!!!");
                $this->_ACTION($target, "punches {$user} square in the face.");
            }
        }

        $lower_args = array_map('strtolower', $args);
        $this->hotWords($user, $target, $lower_args);
        $this->handleCMD($user, $target, $lower_args);
    }

    private function hotWords($user, $target, $args) {
        if(in_array("pine64", $args) && rand(1, 10) > 8) {
            $this->_PRIVMSG($target, "Pine64? That's my favorite!");
        }
        if(in_array("pi", $args) && rand(1, 10) > 8) {
            $this->_PRIVMSG($target, "Talking about Pi? Yuck!!!");
        }
        if(in_array("windows", $args) && rand(1, 10) > 5) {
            $this->_PRIVMSG($target, "Windows? ItsDave hates that word.");
        }
        if(in_array("linux", $args) && rand(1, 10) > 8) {
            $this->_PRIVMSG($target, "Linux? You can't go wrong there.");
        }

        #swear words
        foreach($args as $word) {
            if(in_array($word, $GLOBALS['swears']))
            {
                $this->_PRIVMSG($target, "Whoa {$user}!");
                $this->_ACTION($target, "slaps {$user}. Watch the language!");
                break;
            }
        }
    }

    private function handleCMD($user, $target, $args)
    {
        #var_dump($args);
        if($args[0] != '!t3')
        {
            return false;
        }

        switch($args[1])
        {
            case 'slap':
                $this->_ACTION($target, "slaps {$args[2]}");
                break;
        }
    }

    private function handleJoin($userString, $user, $command, $target, $text)
    {
        $target = substr($target, 1);
        var_dump($userString, $user, $command, $target, $text);
        if($user == $this->username)
                return false;
        #$this->_PRIVMSG($user, "Welcome {$user}");
    }
    private function handlePart($userString, $user, $command, $target, $text)
    {
        var_dump($userString, $user, $command, $target, $text);
        if($user == $this->username)
                return false;
        #$this->_PRIVMSG($target, "Bye {$user}, we didn't like you anyways. :'(");
    }

    private function _JOIN ($channel) {
        $this->activeChannels[] = $channel;
        fwrite($this->chatServer, "JOIN #{$channel}\r\n");
    }

    private function _PART ($channel, $reason) {
        fwrite($this->chatServer, "PART #{$channel} {$reason}\r\n");
    }

    public function _PRIVMSG ($target, $message) {
        echo date("[h:i:s] ") . $this->formatTarget($this->username) . " @ " . $this->formatTarget($target) . ":\r\n{$message}\r\n";
        fwrite($this->chatServer, "PRIVMSG {$target} {$message}\r\n");
    }

    public function _ACTION ($target, $action)
    {
        $this->_PRIVMSG($target, chr(1)."ACTION {$action}".chr(1));
    }

    private function formatTarget($target, $length = 10) {
        if(strlen($target) > $length) {
            return substr($target, 0, $length-1) . "+";
        } else {
            return str_pad($target, $length, " ", STR_PAD_BOTH);
        }
    }

}

servers.ini

[pine]
host = "pine64.no-ip.info"
port = "6667"
user = "PineBot|Example1"
pass = "Null"
channels[] = "test"
channels[] = "Pine64"
ignored[] = "#Pine64"
ignored[] = "ItsDaveBot"
ignored[] = "CedarBot"
;If you want to log in to a 2nd(or more) server(s) repeat the following Lines
;[servername2]
;host = "pine64.no-ip.info"
;port = "6667"
;user = "PineBot|Example2"
;pass = "Null"
;channels[] = "test"
;channels[] = "Pine64"
;Ignore users and channels
;ignored[] = "#Pine64"
;ignored[] = "ItsDaveBot"
;ignored[] = "CedarBot"