<?php
/*
* Laconica - a distributed open-source microblogging tool
* Copyright (C) 2008, Controlez-Vous, 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('LACONICA')) { exit(1); }
require_once('XMPPHP/XMPP.php');
function jabber_valid_base_jid($jid) {
# Cheap but effective
return Validate::email($jid);
}
function jabber_normalize_jid($jid) {
if (preg_match("/(?:([^\@]+)\@)?([^\/]+)(?:\/(.*))?$/", $jid, $matches)) {
$node = $matches[1];
$server = $matches[2];
$resource = $matches[3];
return strtolower($node.'@'.$server);
} else {
return NULL;
}
}
function jabber_daemon_address() {
return common_config('xmpp', 'user') . '@' . common_config('xmpp', 'server');
}
function jabber_connect($resource=NULL) {
static $conn = NULL;
if (!$conn) {
$conn = new XMPPHP_XMPP(common_config('xmpp', 'host') ?
common_config('xmpp', 'host') :
common_config('xmpp', 'server'),
common_config('xmpp', 'port'),
common_config('xmpp', 'user'),
common_config('xmpp', 'password'),
($resource) ? $resource :
common_config('xmpp', 'resource'),
common_config('xmpp', 'server'),
common_config('xmpp', 'debug') ?
true : false,
common_config('xmpp', 'debug') ?
XMPPHP_Log::LEVEL_VERBOSE : NULL
);
$conn->autoSubscribe();
if (!$conn) {
return false;
}
$conn->connect(true); # true = persistent connection
if ($conn->isDisconnected()) {
return false;
}
$conn->processUntil('session_start');
}
return $conn;
}
function jabber_send_notice($to, $notice) {
$conn = jabber_connect();
if (!$conn) {
return false;
}
$profile = Profile::staticGet($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);
$stanza = jabber_make_stanza($to, $msg, 'chat', NULL, $entry);
common_log(LOG_DEBUG, 'full stanza = ' . $stanza, __FILE__);
$conn->send($stanza);
return true;
}
function jabber_make_stanza($to, $body, $type = 'chat', $subject = null, $payload = null) {
$to = htmlspecialchars($to);
$body = htmlspecialchars($body);
$subject = htmlspecialchars($subject);
$jid = jabber_daemon_address();
$out = "<message from='$jid' to='$to' type='$type'>";
if($subject) $out .= "<subject>$subject</subject>";
$out .= "<body>$body</body>";
if($payload) $out .= $payload;
$out .= "</message>";
return $out;
}
# Extra stuff defined by Twitter, needed by twitter clients
function jabber_format_entry($profile, $notice) {
$noticeurl = common_local_url('shownotice',
array('notice' => $notice->id));
$msg = jabber_format_notice($profile, $notice);
$entry = "\n<entry xmlns='http://www.w3.org/2005/Atom'>\n";
$entry .= "<source>\n";
$entry .= "<title>" . $profile->nickname . " - " . common_config('site', 'name') . "</title>\n";
$entry .= "<link href='" . $profile->profileurl . "'/>\n";
$entry .= "<link rel='self' type='application/rss+xml' href='" . common_local_url('userrss', array('nickname' => $profile->nickname)) . "'/>\n";
$entry .= "<author><name>" . $profile->nickname . "</name></author>\n";
$entry .= "<icon>" . common_profile_avatar_url($profile, AVATAR_PROFILE_SIZE) . "</icon>\n";
$entry .= "</source>\n";
$entry .= "<title>" . htmlspecialchars($msg) . "</title>\n";
$entry .= "<summary>" . htmlspecialchars($msg) . "</summary>\n";
$entry .= "<link rel='alternate' href='" . $noticeurl . "' />\n";
$entry .= "<id>". $notice->uri . "</id>\n";
$entry .= "<published>".common_date_w3dtf($notice->created)."</published>\n";
$entry .= "<updated>".common_date_w3dtf($notice->modified)."</updated>\n";
$entry .= "</entry>\n";
$event = "<event xmlns='http://jabber.org/protocol/pubsub#event'>\n";
$event .= "<items xmlns='http://jabber.org/protocol/pubsub' ";
$event .= "node='" . common_local_url('public') . "'>\n";
$event .= "<item id='" . $notice->uri ."' />\n";
$event .= "</items>\n";
$event .= "</event>\n";
# FIXME: include the pubsub event, too.
return $entry;
# return $entry . "\n" . $event;
}
function jabber_send_message($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, $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) {
$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, $body);
}
function jabber_special_presence($type, $to=NULL, $show=NULL, $status=NULL) {
$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);
}
function jabber_broadcast_notice($notice) {
# First, get users subscribed to this profile
# XXX: use a join here rather than looping through results
$profile = Profile::staticGet($notice->profile_id);
if (!$profile) {
common_log(LOG_WARNING, 'Refusing to broadcast notice with ' .
'unknown profile ' . common_log_objstring($notice),
__FILE__);
return false;
}
$sub = new Subscription();
$sub->subscribed = $notice->profile_id;
if ($sub->find()) {
while ($sub->fetch()) {
$user = User::staticGet($sub->subscriber);
if ($user && $user->jabber && $user->jabbernotify) {
common_log(LOG_INFO,
'Sending notice ' . $notice->id . ' to ' . $user->jabber,
__FILE__);
$success = jabber_send_notice($user->jabber, $notice);
if (!$success) {
# XXX: Not sure, but I think that's the right thing to do
return false;
}
}
}
}
return true;
}
function jabber_format_notice(&$profile, &$notice) {
return $profile->nickname . ': ' . $notice->content;
}