diff options
Diffstat (limited to 'lib/xmppmanager.php')
-rw-r--r-- | lib/xmppmanager.php | 485 |
1 files changed, 0 insertions, 485 deletions
diff --git a/lib/xmppmanager.php b/lib/xmppmanager.php deleted file mode 100644 index 985e7c32e..000000000 --- a/lib/xmppmanager.php +++ /dev/null @@ -1,485 +0,0 @@ -<?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); } - -/** - * XMPP background connection manager for XMPP-using queue handlers, - * allowing them to send outgoing messages on the right connection. - * - * Input is handled during socket select loop, keepalive pings during idle. - * Any incoming messages will be forwarded to the main XmppDaemon process, - * which handles direct user interaction. - * - * In a multi-site queuedaemon.php run, one connection will be instantiated - * for each site being handled by the current process that has XMPP enabled. - */ - -class XmppManager extends IoManager -{ - protected $site = null; - protected $pingid = 0; - protected $lastping = null; - - static protected $singletons = array(); - - const PING_INTERVAL = 120; - - /** - * Fetch the singleton XmppManager for the current site. - * @return mixed XmppManager, or false if unneeded - */ - public static function get() - { - if (common_config('xmpp', 'enabled')) { - $site = common_config('site', 'server'); - if (empty(self::$singletons[$site])) { - self::$singletons[$site] = new XmppManager(); - } - return self::$singletons[$site]; - } else { - return false; - } - } - - /** - * Tell the i/o master we need one instance for each supporting site - * being handled in this process. - */ - public static function multiSite() - { - return IoManager::INSTANCE_PER_SITE; - } - - function __construct() - { - $this->site = common_config('site', 'server'); - $this->resource = common_config('xmpp', 'resource') . 'daemon'; - } - - /** - * Initialize connection to server. - * @return boolean true on success - */ - public function start($master) - { - parent::start($master); - $this->switchSite(); - - require_once INSTALLDIR . "/lib/jabber.php"; - - # Low priority; we don't want to receive messages - - common_log(LOG_INFO, "INITIALIZE"); - $this->conn = jabber_connect($this->resource); - - if (empty($this->conn)) { - common_log(LOG_ERR, "Couldn't connect to server."); - return false; - } - - $this->log(LOG_DEBUG, "Initializing stanza handlers."); - - $this->conn->addEventHandler('message', 'handle_message', $this); - $this->conn->addEventHandler('presence', 'handle_presence', $this); - $this->conn->addEventHandler('reconnect', 'handle_reconnect', $this); - - $this->conn->setReconnectTimeout(600); - jabber_send_presence("Send me a message to post a notice", 'available', null, 'available', 100); - - return !is_null($this->conn); - } - - /** - * Message pump is triggered on socket input, so we only need an idle() - * call often enough to trigger our outgoing pings. - */ - function timeout() - { - return self::PING_INTERVAL; - } - - /** - * Lists the XMPP connection socket to allow i/o master to wake - * when input comes in here as well as from the queue source. - * - * @return array of resources - */ - public function getSockets() - { - if ($this->conn) { - return array($this->conn->getSocket()); - } else { - return array(); - } - } - - /** - * Process XMPP events that have come in over the wire. - * Side effects: may switch site configuration - * @fixme may kill process on XMPP error - * @param resource $socket - */ - public function handleInput($socket) - { - $this->switchSite(); - - # Process the queue for as long as needed - try { - if ($this->conn) { - assert($socket === $this->conn->getSocket()); - - common_log(LOG_DEBUG, "Servicing the XMPP queue."); - $this->stats('xmpp_process'); - $this->conn->processTime(0); - } - } catch (XMPPHP_Exception $e) { - common_log(LOG_ERR, "Got an XMPPHP_Exception: " . $e->getMessage()); - die($e->getMessage()); - } - } - - /** - * Idle processing for io manager's execution loop. - * Send keepalive pings to server. - * - * Side effect: kills process on exception from XMPP library. - * - * @fixme non-dying error handling - */ - public function idle($timeout=0) - { - if ($this->conn) { - $now = time(); - if (empty($this->lastping) || $now - $this->lastping > self::PING_INTERVAL) { - $this->switchSite(); - try { - $this->sendPing(); - $this->lastping = $now; - } catch (XMPPHP_Exception $e) { - common_log(LOG_ERR, "Got an XMPPHP_Exception: " . $e->getMessage()); - die($e->getMessage()); - } - } - } - } - - /** - * For queue handlers to pass us a message to push out, - * if we're active. - * - * @fixme should this be blocking etc? - * - * @param string $msg XML stanza to send - * @return boolean success - */ - public function send($msg) - { - if ($this->conn && !$this->conn->isDisconnected()) { - $bytes = $this->conn->send($msg); - if ($bytes > 0) { - $this->conn->processTime(0); - return true; - } else { - return false; - } - } else { - // Can't send right now... - return false; - } - } - - /** - * Send a keepalive ping to the XMPP server. - */ - protected function sendPing() - { - $jid = jabber_daemon_address().'/'.$this->resource; - $server = common_config('xmpp', 'server'); - - if (!isset($this->pingid)) { - $this->pingid = 0; - } else { - $this->pingid++; - } - - common_log(LOG_DEBUG, "Sending ping #{$this->pingid}"); - - $this->conn->send("<iq from='{$jid}' to='{$server}' id='ping_{$this->pingid}' type='get'><ping xmlns='urn:xmpp:ping'/></iq>"); - } - - /** - * Callback for Jabber reconnect event - * @param $pl - */ - function handle_reconnect(&$pl) - { - common_log(LOG_NOTICE, 'XMPP reconnected'); - - $this->conn->processUntil('session_start'); - $this->conn->presence(null, 'available', null, 'available', 100); - } - - - function get_user($from) - { - $user = User::staticGet('jabber', jabber_normalize_jid($from)); - return $user; - } - - /** - * XMPP callback for handling message input... - * @param array $pl XMPP payload - */ - function handle_message(&$pl) - { - $from = jabber_normalize_jid($pl['from']); - - if ($pl['type'] != 'chat') { - $this->log(LOG_WARNING, "Ignoring message of type ".$pl['type']." from $from."); - return; - } - - if (mb_strlen($pl['body']) == 0) { - $this->log(LOG_WARNING, "Ignoring message with empty body from $from."); - return; - } - - // Forwarded from another daemon for us to handle; this shouldn't - // happen any more but we might get some legacy items. - if ($this->is_self($from)) { - $this->log(LOG_INFO, "Got forwarded notice from self ($from)."); - $from = $this->get_ofrom($pl); - $this->log(LOG_INFO, "Originally sent by $from."); - if (is_null($from) || $this->is_self($from)) { - $this->log(LOG_INFO, "Ignoring notice originally sent by $from."); - return; - } - } - - $user = $this->get_user($from); - - // For common_current_user to work - global $_cur; - $_cur = $user; - - if (!$user) { - $this->from_site($from, 'Unknown user; go to ' . - common_local_url('imsettings') . - ' to add your address to your account'); - $this->log(LOG_WARNING, 'Message from unknown user ' . $from); - return; - } - if ($this->handle_command($user, $pl['body'])) { - $this->log(LOG_INFO, "Command message by $from handled."); - return; - } else if ($this->is_autoreply($pl['body'])) { - $this->log(LOG_INFO, 'Ignoring auto reply from ' . $from); - return; - } else if ($this->is_otr($pl['body'])) { - $this->log(LOG_INFO, 'Ignoring OTR from ' . $from); - return; - } else { - - $this->log(LOG_INFO, 'Posting a notice from ' . $user->nickname); - - $this->add_notice($user, $pl); - } - - $user->free(); - unset($user); - unset($_cur); - - unset($pl['xml']); - $pl['xml'] = null; - - $pl = null; - unset($pl); - } - - - function is_self($from) - { - return preg_match('/^'.strtolower(jabber_daemon_address()).'/', strtolower($from)); - } - - function get_ofrom($pl) - { - $xml = $pl['xml']; - $addresses = $xml->sub('addresses'); - if (!$addresses) { - $this->log(LOG_WARNING, 'Forwarded message without addresses'); - return null; - } - $address = $addresses->sub('address'); - if (!$address) { - $this->log(LOG_WARNING, 'Forwarded message without address'); - return null; - } - if (!array_key_exists('type', $address->attrs)) { - $this->log(LOG_WARNING, 'No type for forwarded message'); - return null; - } - $type = $address->attrs['type']; - if ($type != 'ofrom') { - $this->log(LOG_WARNING, 'Type of forwarded message is not ofrom'); - return null; - } - if (!array_key_exists('jid', $address->attrs)) { - $this->log(LOG_WARNING, 'No jid for forwarded message'); - return null; - } - $jid = $address->attrs['jid']; - if (!$jid) { - $this->log(LOG_WARNING, 'Could not get jid from address'); - return null; - } - $this->log(LOG_DEBUG, 'Got message forwarded from jid ' . $jid); - return $jid; - } - - function is_autoreply($txt) - { - if (preg_match('/[\[\(]?[Aa]uto[-\s]?[Rr]e(ply|sponse)[\]\)]/', $txt)) { - return true; - } else if (preg_match('/^System: Message wasn\'t delivered. Offline storage size was exceeded.$/', $txt)) { - return true; - } else { - return false; - } - } - - function is_otr($txt) - { - if (preg_match('/^\?OTR/', $txt)) { - return true; - } else { - return false; - } - } - - function from_site($address, $msg) - { - $text = '['.common_config('site', 'name') . '] ' . $msg; - jabber_send_message($address, $text); - } - - function handle_command($user, $body) - { - $inter = new CommandInterpreter(); - $cmd = $inter->handle_command($user, $body); - if ($cmd) { - $chan = new XMPPChannel($this->conn); - $cmd->execute($chan); - return true; - } else { - return false; - } - } - - function add_notice(&$user, &$pl) - { - $body = trim($pl['body']); - $content_shortened = common_shorten_links($body); - if (Notice::contentTooLong($content_shortened)) { - $from = jabber_normalize_jid($pl['from']); - $this->from_site($from, sprintf(_('Message too long - maximum is %1$d characters, you sent %2$d.'), - Notice::maxContent(), - mb_strlen($content_shortened))); - return; - } - - try { - $notice = Notice::saveNew($user->id, $content_shortened, 'xmpp'); - } catch (Exception $e) { - $this->log(LOG_ERR, $e->getMessage()); - $this->from_site($user->jabber, $e->getMessage()); - return; - } - - common_broadcast_notice($notice); - $this->log(LOG_INFO, - 'Added notice ' . $notice->id . ' from user ' . $user->nickname); - $notice->free(); - unset($notice); - } - - function handle_presence(&$pl) - { - $from = jabber_normalize_jid($pl['from']); - switch ($pl['type']) { - case 'subscribe': - # We let anyone subscribe - $this->subscribed($from); - $this->log(LOG_INFO, - 'Accepted subscription from ' . $from); - break; - case 'subscribed': - case 'unsubscribed': - case 'unsubscribe': - $this->log(LOG_INFO, - 'Ignoring "' . $pl['type'] . '" from ' . $from); - break; - default: - if (!$pl['type']) { - $user = User::staticGet('jabber', $from); - if (!$user) { - $this->log(LOG_WARNING, 'Presence from unknown user ' . $from); - return; - } - if ($user->updatefrompresence) { - $this->log(LOG_INFO, 'Updating ' . $user->nickname . - ' status from presence.'); - $this->add_notice($user, $pl); - } - $user->free(); - unset($user); - } - break; - } - unset($pl['xml']); - $pl['xml'] = null; - - $pl = null; - unset($pl); - } - - function log($level, $msg) - { - $text = 'XMPPDaemon('.$this->resource.'): '.$msg; - common_log($level, $text); - } - - function subscribed($to) - { - jabber_special_presence('subscribed', $to); - } - - /** - * Make sure we're on the right site configuration - */ - protected function switchSite() - { - if ($this->site != common_config('site', 'server')) { - common_log(LOG_DEBUG, __METHOD__ . ": switching to site $this->site"); - $this->stats('switch'); - StatusNet::init($this->site); - } - } -} |