forked from GNUsocial/gnu-social
c00491cd7a
Since these functions exit (or throw exception) after running, there is no need to have a 'return' statement or similar afterwards.
358 lines
11 KiB
PHP
358 lines
11 KiB
PHP
<?php
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/*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2008, 2009, StatusNet, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
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/**
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* IRC background connection manager for IRC-using queue handlers,
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* allowing them to send outgoing messages on the right connection.
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*
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* Input is handled during socket select loop, Any incoming messages will be handled.
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*
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* In a multi-site queuedaemon.php run, one connection will be instantiated
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* for each site being handled by the current process that has IRC enabled.
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*/
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class IrcManager extends ImManager {
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protected $conn = null;
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protected $lastPing = null;
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protected $messageWaiting = true;
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protected $lastMessage = null;
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protected $regChecks = array();
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protected $regChecksLookup = array();
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protected $connected = false;
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/**
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* Initialize connection to server.
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*
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* @return boolean true on success
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*/
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public function start($master) {
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if (parent::start($master)) {
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$this->connect();
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return true;
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} else {
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return false;
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}
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}
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/**
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* Return any open sockets that the run loop should listen
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* for input on.
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*
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* @return array Array of socket resources
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*/
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public function getSockets() {
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$this->connect();
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if ($this->conn) {
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return $this->conn->getSockets();
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} else {
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return array();
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}
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}
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/**
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* Request a maximum timeout for listeners before the next idle period.
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*
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* @return integer Maximum timeout
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*/
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public function timeout() {
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if ($this->messageWaiting) {
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return 1;
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} else {
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return $this->plugin->pinginterval;
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}
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}
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/**
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* Idle processing for io manager's execution loop.
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*
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* @return void
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*/
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public function idle() {
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// Send a ping if necessary
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if (empty($this->lastPing) || time() - $this->lastPing > $this->plugin->pinginterval) {
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$this->sendPing();
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}
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if ($this->connected) {
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// Send a waiting message if appropriate
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if ($this->messageWaiting && time() - $this->lastMessage > 1) {
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$wm = Irc_waiting_message::top();
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if ($wm === NULL) {
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$this->messageWaiting = false;
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return;
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}
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$data = unserialize($wm->data);
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$wm->incAttempts();
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if ($this->send_raw_message($data)) {
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$wm->delete();
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} else {
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if ($wm->attempts <= common_config('queue', 'max_retries')) {
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// Try again next idle
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$wm->releaseClaim();
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} else {
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// Exceeded the maximum number of retries
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$wm->delete();
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}
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}
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}
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}
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}
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/**
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* Process IRC events that have come in over the wire.
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*
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* @param resource $socket Socket to handle input on
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* @return void
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*/
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public function handleInput($socket) {
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common_log(LOG_DEBUG, 'Servicing the IRC queue.');
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$this->stats('irc_process');
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try {
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$this->conn->handleEvents();
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} catch (Phergie_Driver_Exception $e) {
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$this->connected = false;
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$this->conn->reconnect();
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}
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}
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/**
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* Initiate connection
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*
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* @return void
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*/
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public function connect() {
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if (!$this->conn) {
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$this->conn = new Phergie_StatusnetBot;
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$config = new Phergie_Config;
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$config->readArray(
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array(
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'connections' => array(
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array(
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'host' => $this->plugin->host,
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'port' => $this->plugin->port,
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'username' => $this->plugin->username,
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'realname' => $this->plugin->realname,
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'nick' => $this->plugin->nick,
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'password' => $this->plugin->password,
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'transport' => $this->plugin->transporttype,
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'encoding' => $this->plugin->encoding
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)
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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(
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'Pong',
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'NickServ',
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'AutoJoin',
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'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,
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'autojoin.channels' => $this->plugin->channels,
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'statusnet.messagecallback' => array($this, 'handle_irc_message'),
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'statusnet.regcallback' => array($this, 'handle_reg_response'),
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'statusnet.connectedcallback' => array($this, 'handle_connected'),
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'statusnet.unregregexp' => $this->plugin->unregregexp,
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'statusnet.regregexp' => $this->plugin->regregexp
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)
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);
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$this->conn->setConfig($config);
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$this->conn->connect();
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$this->lastPing = time();
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$this->lastMessage = time();
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}
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return $this->conn;
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}
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/**
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* Called via a callback when a message is received
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* Passes it back to the queuing system
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*
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* @param array $data Data
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* @return boolean
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*/
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public function handle_irc_message($data) {
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$this->plugin->enqueueIncomingRaw($data);
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return true;
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}
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/**
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* Called via a callback when NickServ responds to
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* the bots query asking if a nick is registered
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*
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* @param array $data Data
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* @return void
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*/
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public function handle_reg_response($data) {
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// Retrieve data
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$screenname = $data['screenname'];
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$nickdata = $this->regChecks[$screenname];
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$usernick = $nickdata['user']->nickname;
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if (isset($this->regChecksLookup[$usernick])) {
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if ($data['registered']) {
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// Send message
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$this->plugin->sendConfirmationCode($screenname, $nickdata['code'], $nickdata['user'], true);
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} else {
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// TRANS: Message given when using an unregistered IRC nickname.
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$this->plugin->sendMessage($screenname, _m('Your nickname is not registered so IRC connectivity cannot be enabled.'));
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$confirm = new Confirm_address();
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$confirm->user_id = $user->id;
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$confirm->address_type = $this->plugin->transport;
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if ($confirm->find(true)) {
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$result = $confirm->delete();
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if (!$result) {
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common_log_db_error($confirm, 'DELETE', __FILE__);
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// TRANS: Server error thrown on database error when deleting IRC nickname confirmation.
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$this->serverError(_m('Could not delete confirmation.'));
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}
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}
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}
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// Unset lookup value
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unset($this->regChecksLookup[$usernick]);
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// Unset data
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unset($this->regChecks[$screename]);
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}
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}
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/**
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* Called when the connection is established
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*
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* @return void
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*/
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public function handle_connected() {
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$this->connected = true;
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}
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/**
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* Enters a message into the database for sending when ready
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*
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* @param string $command Command
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* @param array $args Arguments
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* @return boolean
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*/
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protected function enqueue_waiting_message($data) {
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$wm = new Irc_waiting_message();
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$wm->data = serialize($data);
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$wm->prioritise = $data['prioritise'];
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$wm->attempts = 0;
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$wm->created = common_sql_now();
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$result = $wm->insert();
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if (!$result) {
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common_log_db_error($wm, 'INSERT', __FILE__);
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// TRANS: Server exception thrown when an IRC waiting queue item could not be added to the database.
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throw new ServerException(_m('Database error inserting IRC waiting queue item.'));
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}
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return true;
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}
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/**
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* Send a message using the daemon
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*
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* @param $data Message data
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* @return boolean true on success
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*/
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public function send_raw_message($data) {
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$this->connect();
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if (!$this->conn) {
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return false;
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}
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if ($data['type'] != 'delayedmessage') {
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if ($data['type'] != 'message') {
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// Nick checking
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$nickdata = $data['nickdata'];
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$usernick = $nickdata['user']->nickname;
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$screenname = $nickdata['screenname'];
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// Cancel any existing checks for this user
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if (isset($this->regChecksLookup[$usernick])) {
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unset($this->regChecks[$this->regChecksLookup[$usernick]]);
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}
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$this->regChecks[$screenname] = $nickdata;
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$this->regChecksLookup[$usernick] = $screenname;
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}
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// If there is a backlog or we need to wait, queue the message
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if ($this->messageWaiting || time() - $this->lastMessage < 1) {
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$this->enqueue_waiting_message(
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array(
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'type' => 'delayedmessage',
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'prioritise' => $data['prioritise'],
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'data' => $data['data']
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)
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);
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$this->messageWaiting = true;
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return true;
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}
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}
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try {
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$this->conn->send($data['data']['command'], $data['data']['args']);
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} catch (Phergie_Driver_Exception $e) {
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$this->connected = false;
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$this->conn->reconnect();
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return false;
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}
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$this->lastMessage = time();
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return true;
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}
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/**
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* Sends a ping
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*
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* @return void
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*/
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protected function sendPing() {
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$this->lastPing = time();
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$this->conn->send('PING', $this->lastPing);
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}
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}
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