gnu-social/plugins/Irc/ircmanager.php

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<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2008, 2009, StatusNet, Inc.
*
* 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/>.
*/
if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
/**
* IRC background connection manager for IRC-using queue handlers,
* allowing them to send outgoing messages on the right connection.
*
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* Input is handled during socket select loop, Any incoming messages will be handled.
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*
* In a multi-site queuedaemon.php run, one connection will be instantiated
* for each site being handled by the current process that has IRC enabled.
*/
class IrcManager extends ImManager {
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protected $conn = null;
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protected $lastPing = null;
protected $messageWaiting = true;
protected $lastMessage = null;
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protected $regChecks = array();
protected $regChecksLookup = array();
protected $connected = false;
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/**
* Initialize connection to server.
*
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* @return boolean true on success
*/
public function start($master) {
if (parent::start($master)) {
$this->connect();
return true;
} else {
return false;
}
}
/**
* Return any open sockets that the run loop should listen
* for input on.
*
* @return array Array of socket resources
*/
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public function getSockets() {
$this->connect();
if ($this->conn) {
return $this->conn->getSockets();
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} else {
return array();
}
}
/**
* Request a maximum timeout for listeners before the next idle period.
*
* @return integer Maximum timeout
*/
public function timeout() {
if ($this->messageWaiting) {
return 1;
} else {
return $this->plugin->pinginterval;
}
}
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/**
* Idle processing for io manager's execution loop.
*
* @return void
*/
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public function idle() {
// Send a ping if necessary
if (empty($this->lastPing) || time() - $this->lastPing > $this->plugin->pinginterval) {
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$this->sendPing();
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}
if ($this->connected) {
// Send a waiting message if appropriate
if ($this->messageWaiting && time() - $this->lastMessage > 1) {
$wm = Irc_waiting_message::top();
if ($wm === NULL) {
$this->messageWaiting = false;
return;
}
$data = unserialize($wm->data);
$wm->incAttempts();
if ($this->send_raw_message($data)) {
$wm->delete();
} else {
if ($wm->attempts <= common_config('queue', 'max_retries')) {
// Try again next idle
$wm->releaseClaim();
} else {
// Exceeded the maximum number of retries
$wm->delete();
}
}
}
}
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}
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/**
* Process IRC events that have come in over the wire.
*
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* @param resource $socket Socket to handle input on
* @return void
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*/
public function handleInput($socket) {
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common_log(LOG_DEBUG, 'Servicing the IRC queue.');
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$this->stats('irc_process');
try {
$this->conn->handleEvents();
} catch (Phergie_Driver_Exception $e) {
$this->connected = false;
$this->conn->reconnect();
}
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}
/**
* Initiate connection
*
* @return void
*/
public function connect() {
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if (!$this->conn) {
$this->conn = new Phergie_StatusnetBot;
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$config = new Phergie_Config;
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$config->readArray(
array(
'connections' => array(
array(
'host' => $this->plugin->host,
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'port' => $this->plugin->port,
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'username' => $this->plugin->username,
'realname' => $this->plugin->realname,
'nick' => $this->plugin->nick,
'password' => $this->plugin->password,
'transport' => $this->plugin->transporttype,
'encoding' => $this->plugin->encoding
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)
),
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'driver' => 'statusnet',
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'processor' => 'async',
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'processor.options' => array('sec' => 0, 'usec' => 0),
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'plugins' => array(
'Pong',
'NickServ',
'AutoJoin',
'Statusnet',
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),
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'plugins.autoload' => true,
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// Uncomment to enable debugging output
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//'ui.enabled' => true,
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'nickserv.password' => $this->plugin->nickservpassword,
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'nickserv.identify_message' => $this->plugin->nickservidentifyregexp,
'autojoin.channels' => $this->plugin->channels,
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'statusnet.messagecallback' => array($this, 'handle_irc_message'),
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'statusnet.regcallback' => array($this, 'handle_reg_response'),
'statusnet.connectedcallback' => array($this, 'handle_connected'),
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'statusnet.unregregexp' => $this->plugin->unregregexp,
'statusnet.regregexp' => $this->plugin->regregexp
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)
);
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$this->conn->setConfig($config);
$this->conn->connect();
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$this->lastPing = time();
$this->lastMessage = time();
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}
return $this->conn;
}
/**
* Called via a callback when a message is received
* Passes it back to the queuing system
*
* @param array $data Data
* @return boolean
*/
public function handle_irc_message($data) {
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$this->plugin->enqueue_incoming_raw($data);
return true;
}
/**
* Called via a callback when NickServ responds to
* the bots query asking if a nick is registered
*
* @param array $data Data
* @return void
*/
public function handle_reg_response($data) {
// Retrieve data
$screenname = $data['screenname'];
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$nickdata = $this->regChecks[$screenname];
$usernick = $nickdata['user']->nickname;
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if (isset($this->regChecksLookup[$usernick])) {
if ($data['registered']) {
// Send message
$this->plugin->send_confirmation_code($screenname, $nickdata['code'], $nickdata['user'], true);
} else {
$this->plugin->send_message($screenname, _m('Your nickname is not registered so IRC connectivity cannot be enabled'));
$confirm = new Confirm_address();
$confirm->user_id = $user->id;
$confirm->address_type = $this->plugin->transport;
if ($confirm->find(true)) {
$result = $confirm->delete();
if (!$result) {
common_log_db_error($confirm, 'DELETE', __FILE__);
// TRANS: Server error thrown on database error canceling IM address confirmation.
$this->serverError(_('Couldn\'t delete confirmation.'));
return;
}
}
}
// Unset lookup value
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unset($this->regChecksLookup[$usernick]);
// Unset data
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unset($this->regChecks[$screename]);
}
}
/**
* Called when the connection is established
*
* @return void
*/
public function handle_connected() {
$this->connected = true;
}
/**
* Enters a message into the database for sending when ready
*
* @param string $command Command
* @param array $args Arguments
* @return boolean
*/
protected function enqueue_waiting_message($data) {
$wm = new Irc_waiting_message();
$wm->data = serialize($data);
$wm->prioritise = $data['prioritise'];
$wm->attempts = 0;
$wm->created = common_sql_now();
$result = $wm->insert();
if (!$result) {
common_log_db_error($wm, 'INSERT', __FILE__);
throw new ServerException('DB error inserting IRC waiting queue item');
}
return true;
}
/**
* Send a message using the daemon
*
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* @param $data Message data
* @return boolean true on success
*/
public function send_raw_message($data) {
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$this->connect();
if (!$this->conn) {
return false;
}
if ($data['type'] != 'delayedmessage') {
if ($data['type'] != 'message') {
// Nick checking
$nickdata = $data['nickdata'];
$usernick = $nickdata['user']->nickname;
$screenname = $nickdata['screenname'];
// Cancel any existing checks for this user
if (isset($this->regChecksLookup[$usernick])) {
unset($this->regChecks[$this->regChecksLookup[$usernick]]);
}
$this->regChecks[$screenname] = $nickdata;
$this->regChecksLookup[$usernick] = $screenname;
}
// If there is a backlog or we need to wait, queue the message
if ($this->messageWaiting || time() - $this->lastMessage < 1) {
$this->enqueue_waiting_message(
array(
'type' => 'delayedmessage',
'prioritise' => $data['prioritise'],
'data' => $data['data']
)
);
$this->messageWaiting = true;
return true;
}
}
try {
$this->conn->send($data['data']['command'], $data['data']['args']);
} catch (Phergie_Driver_Exception $e) {
$this->connected = false;
$this->conn->reconnect();
return false;
}
$this->lastMessage = time();
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return true;
}
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/**
* Sends a ping
*
* @return void
*/
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protected function sendPing() {
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$this->lastPing = time();
$this->conn->send('PING', $this->lastPing);
}
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}