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Admin at 22:45, 9 April 2010

2010-04-09T22:45:44Z

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<pre><nowiki>
#!/usr/bin/php
<?php
/* Copyright 2010 Ivo Smits <Ivo@UCIS.nl>. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are
permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of
conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list
of conditions and the following disclaimer in the documentation and/or other materials
provided with the distribution.

THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

The views and conclusions contained in the software and documentation are those of the
authors and should not be interpreted as representing official policies, either expressed
or implied, of Ivo Smits.*/

print("UCIS IRC Relay bot (c) 2010 Ivo Smits <Ivo@UCIS.nl>\n");
print("More information: http://wiki.qontrol.nl/IRCRelay\n");
print("\n");

class Network {
public $key = NULL;
public $name = NULL;
public $socket = NULL;
public $server = NULL;
public $port = 6667;
public $nick = NULL;
public $realnick = NULL;
public $connected = FALSE;
public $connecting = FALSE;
public $timeout = 0;
public $channels = array();
public $addressfamily = AF_INET;
public $active = FALSE;
public $ident = 'none';
public $realname = 'Not set - http://wiki.qontrol.nl/IRCRelay';
public $debug = FALSE;
}
class NetworkChannel {
public $network;
public $channel;
public $name;
public $display;
}
class Channel {
public $name = NULL;
public $links = array();
public function __construct($name) { $this->name = $name; }
}

$networks = array();
$channels = array();
$status = NULL;
$adminpass = NULL;

prepare();
configure();
init();
readloop();

function getchannel($name) {
global $channels;
if (array_key_exists($name, $channels)) return $channels[$name];
$ch = new Channel($name);
$channels[$name] = $ch;
return $ch;
}
function configure() {
global $networks;
global $channels;
global $adminpass;

print("Loading configuration...\n");
require 'config.php';

if (isset($config['password'])) $adminpass = $config['password'];
foreach ($config['networks'] as $key => $nc) {
$net = new Network();
$net->key = $key;
$net->server = $nc['server'];
$net->nick = $nc['nick'];
$net->name = isset($nc['name']) ? $nc['name'] : $key;
if (isset($nc['port'])) $net->port = $nc['port'];
if (isset($nc['ident'])) $net->ident = $nc['ident'];
if (isset($nc['realname'])) $net->realname = $nc['realname'];
if (isset($nc['ipv6']) && $nc['ipv6']) $net->addressfamily = AF_INET6;
if (isset($nc['debug']) && $nc['debug']) $net->debug = TRUE;
foreach ($nc['channels'] as $chn => $cf) {
$ch = getchannel($cf['link']);
$nch = new NetworkChannel();
$nch->name = $chn;
$nch->network = $net;
$nch->channel = $ch;
$nch->display = isset($cf['display']) ? $cf['display'] : $net->key;
$ch->links[] = $nch;
$net->channels[$chn] = $nch;
}
$networks[$key] = $net;
$net->active = TRUE;
print('NET '.$net->key.' create'."\n");
}
}

function prepare() {
global $channels, $status;
print("Starting IRC Relay...\n");
$ch = new Channel('status');
$channels[$ch->name] = $ch;
$status = $ch;
}

function init() {
global $networks;
print("Initializing...\n");
}

function readloop() {
global $networks;

$ltime = 0;

print("Running\n");
while (TRUE) {
$selread = array();
$selwrite = array();
$selerror = array();
$selcount = 0;

$ntime = time();
$tdiff = $ntime - $ltime;
$ltime = $ntime;

foreach ($networks as $net) {
if ($net->connected) {
$selread[] = $net->socket;
$selerror[] = $net->socket;
$selcount++;
} else if ($net->connecting) {
$selwrite[] = $net->socket;
$selerror[] = $net->socket;
$selcount++;
} else if ($net->active) {
$net->timeout -= $tdiff;
if ($net->timeout <= 0) {
$net->connecting = TRUE;
print('NET '.$net->key.' connect '.$net->server.':'.$net->port."\n");
$net->socket = socket_create($net->addressfamily, SOCK_STREAM, SOL_TCP);
socket_set_nonblock($net->socket);
socket_connect($net->socket, $net->server, $net->port);
$selwrite[] = $net->socket;
$selerror[] = $net->socket;
}
}
}

if (!$selcount) {
sleep(1);
continue;
}

socket_select(&$selread, &$selwrite, &$selerror, 10);

foreach ($networks as $net) {
if (in_array($net->socket, $selerror)) {
print('NET '.$net->key.' socket error'."\n");
network_reset($net);
} else if ($net->connected && in_array($net->socket, $selread)) {
if (!network_read($net)) {
print('NET '.$net->key.' read error'."\n");
network_reset($net);
}
} else if ($net->connecting && in_array($net->socket, $selwrite)) {
$net->connected = TRUE;
$net->connecting = FALSE;
print('NET '.$net->key.' identify '.$net->nick."\n");
network_send($net, 'USER '.$net->ident.' host server :'.$net->realname);
network_send($net, 'NICK '.$net->nick);
}
}
}
}

function network_reset($net) {
print('NET '.$net->key.' reset'."\n");
socket_close($net->socket);
$net->connected = FALSE;
$net->connecting = FALSE;
$net->readbuffer = '';
$net->timeout = 60;
}

function network_read($net) {
$newdata = socket_read($net->socket, 1024);
if ($newdata === FALSE || !strlen($newdata)) return FALSE;
$net->readbuffer .= $newdata;
$offset = 0;
$len = strlen($net->readbuffer);
while ($offset < $len) {
$posa = strpos($net->readbuffer, "\n", $offset);
$posb = strpos($net->readbuffer, "\r", $offset);
if ($posa !== FALSE && $posb !== FALSE) {
$pos = min($posa, $posb);
} else if ($posa !== FALSE) {
$pos = $posa;
} else if ($posb !== FALSE) {
$pos = $posb;
} else {
break;
}
$line = substr($net->readbuffer, $offset, $pos - $offset);
if (strlen($line)) {
if (!network_process($net, $line)) return FALSE;
}
$offset = $pos + 1;
}
if ($offset == $len) {
$net->readbuffer = '';
} else if ($offset != 0) {
$net->readbuffer = substr($net->readbuffer, $offset);
}
return TRUE;
}

function network_process($net, $line) {
global $adminpass;
if ($net->debug) print('NET '.$net->key.' recv '.$line."\n");
$partsa = explode(' :', $line, 2);
$parts = explode(' ', $partsa[0]);
if ($parts[0][0] == ':') {
$sender = substr(array_shift(&$parts), 1);
} else {
$sender = NULL;
}
$command = array_shift(&$parts);
if (count($partsa) > 1) array_push(&$parts, $partsa[1]);
$partsa = explode('!', $sender);
$sendernick = $partsa[0];
switch (strtoupper($command)) {
case '001': //Welcome
$net->realnick = $parts[0];
print('NET '.$net->key.' welcome '.$net->realnick."\n");
foreach ($net->channels as $ch) network_send($net, "JOIN :".$ch->name);
break;
case '433': //Nickname in use
print('NET '.$net->key.' nickname_in_use'."\n");
network_send($net, "NICK ".$net->nick.rand(100,999));
break;
case 'NICK': //Nickname change
if (strcasecmp($sendernick, $net->realnick)) {
$net->realnick = $parts[0];
print('NET '.$net->key.' nickname '.$net->realnick."\n");
}
break;
case 'PING':
network_send($net, 'PONG :'.$parts[0]);
break;
case 'PRIVMSG':
case 'NOTICE':
if ($parts[0][0] == '#') {
$to = $parts[0];
} else {
$to = $sendernick;
if (!is_null($adminpass) && $parts[1][0] == '.' && substr($parts[1], 1, strlen($adminpass)) === $adminpass) {
$ret = admincmd(array_slice(explode(' ', $parts[1]), 1));
network_send($net, 'PRIVMSG '.$to.' :'.$ret);
break;
}
}
if (!array_key_exists($to, $net->channels)) {
print('NET '.$net->key.' privmsg '.$sendernick.' @ '.$to.' - '.$parts[1]."\n");
break;
}
$ch = $net->channels[$to];
$prefix = '['.$sendernick.(is_null($ch->display) ? '' : ' @ '.$ch->display).'] ';
if (ord($parts[1][0]) == 1) { //CTCP
if (substr($parts[1], 1, 6) != 'ACTION') break;
$msg = chr(1).'ACTION '.$prefix.substr($parts[1], 8, -1).chr(1);
} else {
$msg = $prefix.$parts[1];
}
channel_send($ch->channel, $msg, $ch, $command == 'NOTICE');
break;
case '372': //Motd
case '376': //End of moth
case '002': //Your host
case '003': //This server
case '004': //Version
case '005': //Supported
case '422': //Motd missing
case '251': case '254': case '255': case '265': case '266': case '396': case '353': case '366':
case '252': case '375':
case 'MODE':
case 'JOIN':
case 'PART':
case 'QUIT':
break;
default:
print('NET '.$net->key.' unknown '.$line."\n");
}
return TRUE;
}

function network_send($net, $line) {
if ($net->debug) print('NET '.$net->key.' send '.$line."\n");
$line .= "\r\n";
socket_send($net->socket, $line, strlen($line), 0);
}

function channel_send($ch, $message, $source = NULL, $notice = FALSE) {
foreach ($ch->links as $link) {
if ($link->network->connected && $link !== $source) {
network_send($link->network, ($notice ? 'NOTICE ' : 'PRIVMSG ').$link->name.' :'.$message);
}
}
}

function admincmd($parts) {
global $channels, $networks;
switch (strtolower($parts[0])) {
case 'die': exit(0);
case 'c': case 'chn': case 'chan': case 'channel':
switch (strtolower($parts[1])) {
case 'join': case 'part': case 'rejoin': case 'msg': case 'links':
if (!isset($channels[$parts[2]])) return 'ERR Channel does not exist';
return admincmd_channel($parts[1], $channels[$parts[2]], array_slice($parts, 3));
case 'list': return 'OK '.implode('; ', array_keys($channels));
case 'help':
return 'OK list; links [ch]; join [ch]; part [ch]; rejoin [ch]; msg [ch] [msg]; help';
}
break;
case 'n': case 'net': case 'network':
switch (strtolower($parts[1])) {
case 'disconnect': case 'raw': case 'join': case 'part': case 'rejoin': case 'msg': case 'delete': case 'info': case 'status': case 'channels': case 'set': case 'active': case 'ipv6': case 'link': case 'unlink': case 'linkinfo':
if (!isset($networks[$parts[2]])) return 'ERR Network does not exist';
return admincmd_network($parts[1], $networks[$parts[2]], array_slice($parts, 3));
case 'list': return 'OK '.implode('; ', array_keys($networks));
case 'help':
return 'OK list; disconnect [net]; raw [net] [text]; join [net] [ch]; part [net] [ch]; rejoin [net] [ch]; msg [net] [ch] [msg]; help; delete; info; status; channels; set [name] [server] [port] [nick]; active [enable]; ipv6 [enable]; link [name] [channel] [display]; unlink [name]; linkinfo [name]';
}
break;
case 'help':
return 'OK die; channel help; network help';
}
return 'ERR Unknown command';
}

function admincmd_channel($cmd, $chn, $parts) {
switch (strtolower($cmd)) {
case 'links':
$arr = array();
foreach ($chn->links as $link) $arr[] = $link->network->key.'/'.$link->name;
return 'OK '.implode('; ', $arr);
case 'join':
foreach ($chn->links as $link) if ($link->network->connected) network_send($link->network, 'JOIN '.$link->name);
return 'OK';
case 'part':
foreach ($chn->links as $link) if ($link->network->connected) network_send($link->network, 'PART '.$link->name);
return 'OK';
case 'rejoin':
foreach ($chn->links as $link) if ($link->network->connected) network_send($link->network, 'PART '.$link->name);
foreach ($chn->links as $link) if ($link->network->connected) network_send($link->network, 'JOIN '.$link->name);
return 'OK';
case 'msg':
foreach ($chn->links as $link) if ($link->network->connected) network_send($link->network, 'PRIVMSG '.$link->name.' :'.implode(' ', array_slice($parts, 0)));
return 'OK';
}
return 'ERR Unknown command';
}
function admincmd_network($cmd, $net, $parts) {
global $channels;
switch (strtolower($cmd)) {
case 'disconnect':
network_reset($net);
return 'OK';
case 'raw':
network_send($net, implode(' ', array_slice($parts, 0)));
return 'OK';
case 'join':
network_send($net, 'JOIN '.$parts[0]);
return 'OK';
case 'part':
network_send($net, 'PART '.$parts[0]);
return 'OK';
case 'rejoin':
network_send($net, 'JOIN '.$parts[0]);
network_send($net, 'PART '.$parts[0]);
return 'OK';
case 'msg':
network_send($net, 'PRIVMSG '.$parts[0].' :'.implode(' ', array_slice($parts, 1)));
return 'OK';
case 'delete':
network_Reset($net);
unset($networks[$net->key]);
return 'OK';
case 'info':
return 'OK key='.$net->key.'; name='.$net->name.'; server='.$net->server.'; port='.$net->port.'; nick='.$net->nick.'; active='.$net->active.'; af='.$net->addressfamily;
case 'status':
return 'OK connected='.$net->connected.'; connecting='.$net->connecting.'; timeout='.$net->timeout.'; nick='.$net->realnick;
case 'channels':
return 'OK '.implode('; ', array_keys($net->channels));
case 'set':
$net->name = $parts[0];
$net->server = $parts[1];
$net->port = (int)$parts[2];
$net->nick = $parts[3];
return 'OK';
case 'active':
$net->active = $parts[0];
return 'OK';
case 'ipv6':
$net->addressfamily = $parts[0] ? AF_INET6 : AF_INET;
return 'OK';
case 'link':
if (isset($net->channels[$parts[0]])) return 'ERR Channel already linked';
$link = new NetworkChannel();
$link->name = $parts[0];
$link->network = $net;
$link->channel = getchannel($parts[1]);
$link->display = implode(' ', array_slice($parts, 2));
$link->channel->links[] = $link;
$net->channels[$link->name] = $link;
if ($net->connected && $link->name[0] == '#') network_send($net, 'JOIN '.$link->name);
return 'OK';
case 'unlink':
if (!isset($net->channels[$parts[0]])) return 'ERR Channel not linked';
$link = $net->channels[$parts[0]];
unset($net->channels[$link->name]);
foreach ($link->channel->links as $k => $l) if ($l === $link) unset($link->channel->links[$k]);
if (!count($link->channel->links)) unset($channels[$link->channel->name]);
if ($net->connected && $link->name[0] == '#') network_send($net, 'PART '.$link->name);
return 'OK';
case 'linkinfo':
if (!isset($net->channels[$parts[0]])) return 'ERR Channel not linked';
$link = $net->channels[$parts[0]];
return 'OK channel='.$link->channel->name.'; display='.$link->display;
}
return 'ERR Unknown command';
}
</nowiki></pre>

IRCRelay/Sourcecode - Revision history

Admin: 1 revision imported

Admin at 22:45, 9 April 2010