<?php
-/*
- * Laconica - a distributed open-source microblogging tool
- * Copyright (C) 2008, Controlez-Vous, Inc.
+/**
+ * StatusNet, the distributed open-source microblogging tool
*
- * This program is free software: you can redistribute it and/or modify
+ * utility functions for Jabber/GTalk/XMPP messages
+ *
+ * PHP version 5
+ *
+ * LICENCE: 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.
*
* 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 Network
+ * @package StatusNet
+ * @author Evan Prodromou <evan@status.net>
+ * @copyright 2008 StatusNet, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://status.net/
+ */
+
+if (!defined('STATUSNET') && !defined('LACONICA')) {
+ exit(1);
+}
+
+require_once 'XMPPHP/XMPP.php';
+
+/**
+ * checks whether a string is a syntactically valid Jabber ID (JID)
+ *
+ * @param string $jid string to check
+ *
+ * @return boolean whether the string is a valid JID
+ */
+
+function jabber_valid_base_jid($jid)
+{
+ // Cheap but effective
+ return Validate::email($jid);
+}
+
+/**
+ * normalizes a Jabber ID for comparison
+ *
+ * @param string $jid JID to check
+ *
+ * @return string an equivalent JID in normalized (lowercase) form
+ */
+
+function jabber_normalize_jid($jid)
+{
+ if (preg_match("/(?:([^\@]+)\@)?([^\/]+)(?:\/(.*))?$/", $jid, $matches)) {
+ $node = $matches[1];
+ $server = $matches[2];
+ return strtolower($node.'@'.$server);
+ } else {
+ return null;
+ }
+}
+
+/**
+ * the JID of the Jabber daemon for this StatusNet instance
+ *
+ * @return string JID of the Jabber daemon
+ */
+
+function jabber_daemon_address()
+{
+ return common_config('xmpp', 'user') . '@' . common_config('xmpp', 'server');
+}
+
+class Sharing_XMPP extends XMPPHP_XMPP
+{
+ function getSocket()
+ {
+ return $this->socket;
+ }
+}
+
+/**
+ * Build an XMPP proxy connection that'll save outgoing messages
+ * to the 'xmppout' queue to be picked up by xmppdaemon later.
+ */
+function jabber_proxy()
+{
+ $proxy = new Queued_XMPP(common_config('xmpp', 'host') ?
+ common_config('xmpp', 'host') :
+ common_config('xmpp', 'server'),
+ common_config('xmpp', 'port'),
+ common_config('xmpp', 'user'),
+ common_config('xmpp', 'password'),
+ common_config('xmpp', 'resource') . 'daemon',
+ common_config('xmpp', 'server'),
+ common_config('xmpp', 'debug') ?
+ true : false,
+ common_config('xmpp', 'debug') ?
+ XMPPHP_Log::LEVEL_VERBOSE : null);
+ return $proxy;
+}
+
+/**
+ * Lazy-connect the configured Jabber account to the configured server;
+ * if already opened, the same connection will be returned.
+ *
+ * In a multi-site background process, each site configuration
+ * will get its own connection.
+ *
+ * @param string $resource Resource to connect (defaults to configured resource)
+ *
+ * @return XMPPHP connection to the configured server
*/
-if (!defined('LACONICA')) { exit(1); }
-
-function jabber_valid_base_jid($jid) {
- # Cheap but effective
- return Validate::email($jid);
-}
-
-function jabber_normalize_jid($jid) {
- preg_match("/(?:([^\@]+)\@)?([^\/]+)(?:\/(.*))?$/", $jid, $matches);
- $node = $matches[1];
- $server = $matches[2];
- $resource = $matches[3];
- return strtolower($node.'@'.$server);
-}
-
-function jabber_connect($resource=NULL) {
- static $conn = NULL;
- if (!$conn) {
- $conn = new XMPP(common_config('xmpp', 'server'),
- common_config('xmpp', 'port'),
- common_config('xmpp', 'user'),
- common_config('xmpp', 'password'),
- ($resource) ? $resource :
- common_config('xmpp', 'resource'));
-
- if (!$conn) {
- return false;
- }
- $conn->connect(true); # try to get a persistent connection
- if ($conn->disconnected) {
- return false;
- }
+function jabber_connect($resource=null)
+{
+ static $connections = array();
+ $site = common_config('site', 'server');
+ if (empty($connections[$site])) {
+ if (empty($resource)) {
+ $resource = common_config('xmpp', 'resource');
+ }
+ $conn = new Sharing_XMPP(common_config('xmpp', 'host') ?
+ common_config('xmpp', 'host') :
+ common_config('xmpp', 'server'),
+ common_config('xmpp', 'port'),
+ common_config('xmpp', 'user'),
+ common_config('xmpp', 'password'),
+ $resource,
+ common_config('xmpp', 'server'),
+ common_config('xmpp', 'debug') ?
+ true : false,
+ common_config('xmpp', 'debug') ?
+ XMPPHP_Log::LEVEL_VERBOSE : null
+ );
+
+ if (!$conn) {
+ return false;
+ }
+ $connections[$site] = $conn;
+
+ $conn->autoSubscribe();
+ $conn->useEncryption(common_config('xmpp', 'encryption'));
+
+ try {
+ common_log(LOG_INFO, __METHOD__ . ": connecting " .
+ common_config('xmpp', 'user') . '/' . $resource);
+ //$conn->connect(true); // true = persistent connection
+ $conn->connect(); // persistent connections break multisite
+ } catch (XMPPHP_Exception $e) {
+ common_log(LOG_ERR, $e->getMessage());
+ return false;
+ }
+
$conn->processUntil('session_start');
- }
- return $conn;
-}
-
-function jabber_send_message($to, $body, $type='chat', $subject=NULL) {
- $conn = jabber_connect();
- if (!$conn) {
- return false;
- }
- $conn->message($to, $body, $type, $subject);
- return true;
-}
-
-function jabber_send_presence($status=Null, $show='available', $to=Null) {
- $conn = jabber_connect();
- if (!$conn) {
- return false;
- }
- $conn->presence($status, $show, $to);
- return true;
-}
-
-function jabber_confirm_address($code, $nickname, $address) {
-
- # FIXME: do we have to request presence first?
-
- $body = "Hey, $nickname.";
- $body .= "\n\n";
- $body .= 'Someone just entered this IM address on ';
- $body .= common_config('site', 'name') . '.';
- $body .= "\n\n";
- $body .= 'If it was you, and you want to confirm your entry, ';
- $body .= 'use the URL below:';
- $body .= "\n\n";
- $body .= "\t".common_local_url('confirmaddress',
- array('code' => $code));
- $body .= "\n\n";
- $body .= 'If not, just ignore this message.';
- $body .= "\n\n";
- $body .= 'Thanks for your time, ';
- $body .= "\n";
- $body .= common_config('site', 'name');
- $body .= "\n";
-
- jabber_send_message($address, $body);
+ }
+ return $connections[$site];
+}
+
+/**
+ * Queue send for a single notice to a given Jabber address
+ *
+ * @param string $to JID to send the notice to
+ * @param Notice $notice notice to send
+ *
+ * @return boolean success value
+ */
+
+function jabber_send_notice($to, $notice)
+{
+ $conn = jabber_proxy();
+ $profile = Profile::staticGet($notice->profile_id);
+ if (!$profile) {
+ common_log(LOG_WARNING, 'Refusing to send notice with ' .
+ 'unknown profile ' . common_log_objstring($notice),
+ __FILE__);
+ return false;
+ }
+ $msg = jabber_format_notice($profile, $notice);
+ $entry = jabber_format_entry($profile, $notice);
+ $conn->message($to, $msg, 'chat', null, $entry);
+ $profile->free();
+ return true;
+}
+
+/**
+ * extra information for XMPP messages, as defined by Twitter
+ *
+ * @param Profile $profile Profile of the sending user
+ * @param Notice $notice Notice being sent
+ *
+ * @return string Extra information (Atom, HTML, addresses) in string format
+ */
+
+function jabber_format_entry($profile, $notice)
+{
+ $entry = $notice->asAtomEntry(true, true);
+
+ $xs = new XMLStringer();
+ $xs->elementStart('html', array('xmlns' => 'http://jabber.org/protocol/xhtml-im'));
+ $xs->elementStart('body', array('xmlns' => 'http://www.w3.org/1999/xhtml'));
+ $xs->element('a', array('href' => $profile->profileurl),
+ $profile->nickname);
+ $xs->text(": ");
+ if (!empty($notice->rendered)) {
+ $xs->raw($notice->rendered);
+ } else {
+ $xs->raw(common_render_content($notice->content, $notice));
+ }
+ $xs->text(" ");
+ $xs->element('a', array(
+ 'href'=>common_local_url('conversation',
+ array('id' => $notice->conversation)).'#notice-'.$notice->id
+ ),sprintf(_('[%s]'),$notice->id));
+ $xs->elementEnd('body');
+ $xs->elementEnd('html');
+
+ $html = $xs->getString();
+
+ return $html . ' ' . $entry;
+}
+
+/**
+ * sends a single text message to a given JID
+ *
+ * @param string $to JID to send the message to
+ * @param string $body body of the message
+ * @param string $type type of the message
+ * @param string $subject subject of the message
+ *
+ * @return boolean success flag
+ */
+
+function jabber_send_message($to, $body, $type='chat', $subject=null)
+{
+ $conn = jabber_proxy();
+ $conn->message($to, $body, $type, $subject);
+ return true;
}
+/**
+ * sends a presence stanza on the Jabber network
+ *
+ * @param string $status current status, free-form string
+ * @param string $show structured status value
+ * @param string $to recipient of presence, null for general
+ * @param string $type type of status message, related to $show
+ * @param int $priority priority of the presence
+ *
+ * @return boolean success value
+ */
+
+function jabber_send_presence($status, $show='available', $to=null,
+ $type = 'available', $priority=null)
+{
+ $conn = jabber_connect();
+ if (!$conn) {
+ return false;
+ }
+ $conn->presence($status, $show, $to, $type, $priority);
+ return true;
+}
+
+/**
+ * sends a confirmation request to a JID
+ *
+ * @param string $code confirmation code for confirmation URL
+ * @param string $nickname nickname of confirming user
+ * @param string $address JID to send confirmation to
+ *
+ * @return boolean success flag
+ */
+
+function jabber_confirm_address($code, $nickname, $address)
+{
+ $body = 'User "' . $nickname . '" on ' . common_config('site', 'name') . ' ' .
+ 'has said that your Jabber ID belongs to them. ' .
+ 'If that\'s true, you can confirm by clicking on this URL: ' .
+ common_local_url('confirmaddress', array('code' => $code)) .
+ ' . (If you cannot click it, copy-and-paste it into the ' .
+ 'address bar of your browser). If that user isn\'t you, ' .
+ 'or if you didn\'t request this confirmation, just ignore this message.';
+
+ return jabber_send_message($address, $body);
+}
+
+/**
+ * sends a "special" presence stanza on the Jabber network
+ *
+ * @param string $type Type of presence
+ * @param string $to JID to send presence to
+ * @param string $show show value for presence
+ * @param string $status status value for presence
+ *
+ * @return boolean success flag
+ *
+ * @see jabber_send_presence()
+ */
+
+function jabber_special_presence($type, $to=null, $show=null, $status=null)
+{
+ // FIXME: why use this instead of jabber_send_presence()?
+ $conn = jabber_connect();
+
+ $to = htmlspecialchars($to);
+ $status = htmlspecialchars($status);
+
+ $out = "<presence";
+ if ($to) {
+ $out .= " to='$to'";
+ }
+ if ($type) {
+ $out .= " type='$type'";
+ }
+ if ($show == 'available' and !$status) {
+ $out .= "/>";
+ } else {
+ $out .= ">";
+ if ($show && ($show != 'available')) {
+ $out .= "<show>$show</show>";
+ }
+ if ($status) {
+ $out .= "<status>$status</status>";
+ }
+ $out .= "</presence>";
+ }
+ $conn->send($out);
+}
+
+/**
+ * Queue broadcast of a notice to all subscribers and reply recipients
+ *
+ * This function will send a notice to all subscribers on the local server
+ * who have Jabber addresses, and have Jabber notification enabled, and
+ * have this subscription enabled for Jabber. It also sends the notice to
+ * all recipients of @-replies who have Jabber addresses and Jabber notification
+ * enabled. This is really the heart of Jabber distribution in StatusNet.
+ *
+ * @param Notice $notice The notice to broadcast
+ *
+ * @return boolean success flag
+ */
+
+function jabber_broadcast_notice($notice)
+{
+ if (!common_config('xmpp', 'enabled')) {
+ return true;
+ }
+ $profile = Profile::staticGet($notice->profile_id);
+
+ if (!$profile) {
+ common_log(LOG_WARNING, 'Refusing to broadcast notice with ' .
+ 'unknown profile ' . common_log_objstring($notice),
+ __FILE__);
+ return true; // not recoverable; discard.
+ }
+
+ $msg = jabber_format_notice($profile, $notice);
+ $entry = jabber_format_entry($profile, $notice);
+
+ $profile->free();
+ unset($profile);
+
+ $sent_to = array();
+
+ $conn = jabber_proxy();
+
+ $ni = $notice->whoGets();
+
+ foreach ($ni as $user_id => $reason) {
+ $user = User::staticGet($user_id);
+ if (empty($user) ||
+ empty($user->jabber) ||
+ !$user->jabbernotify) {
+ // either not a local user, or just not found
+ continue;
+ }
+ switch ($reason) {
+ case NOTICE_INBOX_SOURCE_REPLY:
+ if (!$user->jabberreplies) {
+ continue 2;
+ }
+ break;
+ case NOTICE_INBOX_SOURCE_SUB:
+ $sub = Subscription::pkeyGet(array('subscriber' => $user->id,
+ 'subscribed' => $notice->profile_id));
+ if (empty($sub) || !$sub->jabber) {
+ continue 2;
+ }
+ break;
+ case NOTICE_INBOX_SOURCE_GROUP:
+ break;
+ default:
+ throw new Exception(sprintf(_("Unknown inbox source %d."), $reason));
+ }
+
+ common_log(LOG_INFO,
+ 'Sending notice ' . $notice->id . ' to ' . $user->jabber,
+ __FILE__);
+ $conn->message($user->jabber, $msg, 'chat', null, $entry);
+ }
+
+ return true;
+}
+
+/**
+ * Queue send of a notice to all public listeners
+ *
+ * For notices that are generated on the local system (by users), we can optionally
+ * forward them to remote listeners by XMPP.
+ *
+ * @param Notice $notice notice to broadcast
+ *
+ * @return boolean success flag
+ */
+
+function jabber_public_notice($notice)
+{
+ // Now, users who want everything
+
+ $public = common_config('xmpp', 'public');
+
+ // FIXME PRIV don't send out private messages here
+ // XXX: should we send out non-local messages if public,localonly
+ // = false? I think not
+
+ if ($public && $notice->is_local == Notice::LOCAL_PUBLIC) {
+ $profile = Profile::staticGet($notice->profile_id);
+
+ if (!$profile) {
+ common_log(LOG_WARNING, 'Refusing to broadcast notice with ' .
+ 'unknown profile ' . common_log_objstring($notice),
+ __FILE__);
+ return true; // not recoverable; discard.
+ }
+
+ $msg = jabber_format_notice($profile, $notice);
+ $entry = jabber_format_entry($profile, $notice);
+
+ $conn = jabber_proxy();
+
+ foreach ($public as $address) {
+ common_log(LOG_INFO,
+ 'Sending notice ' . $notice->id .
+ ' to public listener ' . $address,
+ __FILE__);
+ $conn->message($address, $msg, 'chat', null, $entry);
+ }
+ $profile->free();
+ }
+
+ return true;
+}
+
+/**
+ * makes a plain-text formatted version of a notice, suitable for Jabber distribution
+ *
+ * @param Profile &$profile profile of the sending user
+ * @param Notice &$notice notice being sent
+ *
+ * @return string plain-text version of the notice, with user nickname prefixed
+ */
+
+function jabber_format_notice(&$profile, &$notice)
+{
+ return $profile->nickname . ': ' . $notice->content . ' [' . $notice->id . ']';
+}
projects / quix0rs-gnu-social.git / blobdiff