<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* Send and receive notices using an IRC network
*
* PHP version 5
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category IM
* @package StatusNet
* @author Luke Fitzgerald <lw.fitzgerald@googlemail.com>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
// This check helps protect against security problems;
// your code file can't be executed directly from the web.
exit(1);
}
// We bundle the Phergie library...
set_include_path(get_include_path() . PATH_SEPARATOR . dirname(__FILE__) . '/extlib/phergie');
/**
* Plugin for IRC
*
* @category Plugin
* @package StatusNet
* @author Luke Fitzgerald <lw.fitzgerald@googlemail.com>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class IrcPlugin extends ImPlugin {
public $host = null;
public $port = null;
public $username = null;
public $realname = null;
public $nick = null;
public $password = null;
public $nickservidentifyregexp = null;
public $nickservpassword = null;
public $channels = null;
public $transporttype = null;
public $encoding = null;
public $pinginterval = null;
public $regcheck = null;
public $unregregexp = null;
public $regregexp = null;
public $transport = 'irc';
protected $whiteList;
protected $fake_irc;
/**
* Get the internationalized/translated display name of this IM service
*
* @return string Name of service
*/
public function getDisplayName() {
// TRANS: Service name for IRC.
return _m('IRC');
}
/**
* Normalize a screenname for comparison
*
* @param string $screenname Screenname to normalize
* @return string An equivalent screenname in normalized form
*/
public function normalize($screenname) {
$screenname = str_replace(" ","", $screenname);
return strtolower($screenname);
}
/**
* Get the screenname of the daemon that sends and receives messages
*
* @return string Screenname
*/
public function daemonScreenname() {
return $this->nick;
}
/**
* Validate (ensure the validity of) a screenname
*
* @param string $screenname Screenname to validate
* @return boolean true if screenname is valid
*/
public function validate($screenname) {
if (preg_match('/\A[a-z0-9\-_]{1,1000}\z/i', $screenname)) {
return true;
} else {
return false;
}
}
/**
* Load related modules when needed
*
* @param string $cls Name of the class to be loaded
* @return boolean hook value; true means continue processing, false means stop.
*/
public function onAutoload($cls) {
// in the beginning of this file, we have added an include path
if (substr($cls, 0, 7) == 'Phergie') {
include_once str_replace('_', DIRECTORY_SEPARATOR, $cls) . '.php';
return false;
}
return parent::onAutoload($cls);
}
/*
* Start manager on daemon start
*
* @param array &$versions Array to insert manager into
* @return boolean
*/
public function onStartImDaemonIoManagers(&$classes) {
parent::onStartImDaemonIoManagers($classes);
$classes[] = new IrcManager($this); // handles sending/receiving
return true;
}
/**
* Ensure the database table is present
*
*/
public function onCheckSchema() {
$schema = Schema::get();
// For storing messages while sessions become ready
$schema->ensureTable('irc_waiting_message', Irc_waiting_message::schemaDef());
return true;
}
/**
* Get a microid URI for the given screenname
*
* @param string $screenname Screenname
* @return string microid URI
*/
public function microiduri($screenname) {
return 'irc:' . $screenname;
}
/**
* Send a message to a given screenname
*
* @param string $screenname Screenname to send to
* @param string $body Text to send
* @return boolean true on success
*/
public function sendMessage($screenname, $body) {
$lines = explode("\n", $body);
foreach ($lines as $line) {
$this->fake_irc->doPrivmsg($screenname, $line);
$this->enqueueOutgoingRaw(array('type' => 'message', 'prioritise' => 0, 'data' => $this->fake_irc->would_be_sent));
}
return true;
}
/**
* Accept a queued input message.
*
* @return boolean true if processing completed, false if message should be reprocessed
*/
public function receiveRawMessage($data) {
if (strpos($data['source'], '#') === 0) {
$message = $data['message'];
$parts = explode(' ', $message, 2);
$command = $parts[0];
if (in_array($command, $this->whiteList)) {
$this->handle_channel_incoming($data['sender'], $data['source'], $message);
} else {
$this->handleIncoming($data['sender'], $message);
}
} else {
$this->handleIncoming($data['sender'], $data['message']);
}
return true;
}
/**
* Helper for handling incoming messages from a channel requiring response
* to the channel instead of via PM
*
* @param string $nick Screenname the message was sent from
* @param string $channel Channel the message originated from
* @param string $message Message text
* @param boolean true on success
*/
protected function handle_channel_incoming($nick, $channel, $notice_text) {
$user = $this->getUser($nick);
// For common_current_user to work
global $_cur;
$_cur = $user;
if (!$user) {
$this->sendFromSite($nick, 'Unknown user; go to ' .
common_local_url('imsettings') .
' to add your address to your account');
common_log(LOG_WARNING, 'Message from unknown user ' . $nick);
return;
}
if ($this->handle_channel_command($user, $channel, $notice_text)) {
common_log(LOG_INFO, "Command message by $nick handled.");
return;
} else if ($this->isAutoreply($notice_text)) {
common_log(LOG_INFO, 'Ignoring auto reply from ' . $nick);
return;
} else if ($this->isOtr($notice_text)) {
common_log(LOG_INFO, 'Ignoring OTR from ' . $nick);
return;
} else {
common_log(LOG_INFO, 'Posting a notice from ' . $user->nickname);
$this->addNotice($nick, $user, $notice_text);
}
$user->free();
unset($user);
unset($_cur);
unset($message);
}
/**
* Attempt to handle a message from a channel as a command
*
* @param User $user User the message is from
* @param string $channel Channel the message originated from
* @param string $body Message text
* @return boolean true if the message was a command and was executed, false if it was not a command
*/
protected function handle_channel_command($user, $channel, $body) {
$inter = new CommandInterpreter();
$cmd = $inter->handle_command($user, $body);
if ($cmd) {
$chan = new ChannelResponseChannel($this, $channel);
$cmd->execute($chan);
return true;
} else {
return false;
}
}
/**
* Send a confirmation code to a user
*
* @param string $screenname screenname sending to
* @param string $code the confirmation code
* @param User $user user sending to
* @return boolean success value
*/
public function sendConfirmationCode($screenname, $code, $user, $checked = false) {
// TRANS: Body text for e-mail confirmation message for IRC.
// TRANS: %1$s is a user nickname, %2$s is the StatusNet sitename,
// TRANS: %3$s is the plugin display name ("IRC"), %4$s is the confirm address URL.
$body = sprintf(_m('User "%1$s" on %2$s has said that your %3$s screenname belongs to them. ' .
'If that\'s true, you can confirm by clicking on this URL: ' .
'%4$s' .
' . (If you cannot click it, copy-and-paste it into the ' .
'address bar of your browser). If that user is not you, ' .
'or if you did not request this confirmation, just ignore this message.'),
$user->nickname, common_config('site', 'name'), $this->getDisplayName(), common_local_url('confirmaddress', array('code' => $code)));
if ($this->regcheck && !$checked) {
return $this->checked_sendConfirmationCode($screenname, $code, $user);
} else {
return $this->sendMessage($screenname, $body);
}
}
/**
* Only sends the confirmation message if the nick is
* registered
*
* @param string $screenname Screenname sending to
* @param string $code The confirmation code
* @param User $user User sending to
* @return boolean true on succes
*/
public function checked_sendConfirmationCode($screenname, $code, $user) {
$this->fake_irc->doPrivmsg('NickServ', 'INFO '.$screenname);
$this->enqueueOutgoingRaw(
array(
'type' => 'nickcheck',
'prioritise' => 1,
'data' => $this->fake_irc->would_be_sent,
'nickdata' =>
array(
'screenname' => $screenname,
'code' => $code,
'user' => $user
)
)
);
return true;
}
/**
* Initialize plugin
*
* @return boolean
*/
public function initialize() {
if (!isset($this->host)) {
// TRANS: Exception thrown when initialising the IRC plugin fails because of an incorrect configuration.
throw new Exception(_m('You must specify a host.'));
}
if (!isset($this->username)) {
// TRANS: Exception thrown when initialising the IRC plugin fails because of an incorrect configuration.
throw new Exception(_m('You must specify a username.'));
}
if (!isset($this->realname)) {
// TRANS: Exception thrown when initialising the IRC plugin fails because of an incorrect configuration.
throw new Exception(_m('You must specify a "real name".'));
}
if (!isset($this->nick)) {
// TRANS: Exception thrown when initialising the IRC plugin fails because of an incorrect configuration.
throw new Exception(_m('You must specify a nickname.'));
}
if (!isset($this->port)) {
$this->port = 6667;
}
if (!isset($this->transporttype)) {
$this->transporttype = 'tcp';
}
if (!isset($this->encoding)) {
$this->encoding = 'UTF-8';
}
if (!isset($this->pinginterval)) {
$this->pinginterval = 120;
}
if (!isset($this->regcheck)) {
$this->regcheck = true;
}
$this->fake_irc = new FakeIrc;
/*
* Commands allowed to return output to a channel
*/
$this->whiteList = array('stats', 'last', 'get');
return true;
}
/**
* Get plugin information
*
* @param array $versions Array to insert information into
* @return void
*/
public function onPluginVersion(&$versions) {
$versions[] = array('name' => 'IRC',
'version' => GNUSOCIAL_VERSION,
'author' => 'Luke Fitzgerald',
'homepage' => 'http://status.net/wiki/Plugin:IRC',
'rawdescription' =>
// TRANS: Plugin description.
_m('The IRC plugin allows users to send and receive notices over an IRC network.'));
return true;
}
}