summaryrefslogtreecommitdiff
path: root/lib/jabber.php
blob: 68bd0d8d35a652fc08339838859b10aada55bae9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
<?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 = $matches[2];
		return strtolower($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
								);

		if (!$conn) {
			return false;
		}

		$conn->autoSubscribe();
		$conn->useEncryption(common_config('xmpp', 'encryption'));

		try {
			$conn->connect(true); # true = persistent connection
		} catch (XMPPHP_Exception $e) {
			common_log(LOG_ERROR, $e->getMessage());
			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);
	$conn->message($to, $msg, 'chat', NULL, $entry);
	return true;
}

# Extra stuff defined by Twitter, needed by twitter clients

function jabber_format_entry($profile, $notice) {

	# FIXME: notice url might be remote

	$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";
	$entry .= "<link href='" . htmlspecialchars($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";

	$html = "\n<html xmlns='http://jabber.org/protocol/xhtml-im'>\n";
	$html .= "<body xmlns='http://www.w3.org/1999/xhtml'>\n";
	$html .= "<a href='".common_profile_url($profile->nickname)."'>".$profile->nickname."</a>: ";
	$html .= ($notice->rendered) ? $notice->rendered : common_render_content($notice->content, $notice);
	$html .= "\n</body>\n";
	$html .= "\n</html>\n";

	$address = "<addresses xmlns='http://jabber.org/protocol/address'>\n";
	$address .= "<address type='replyto' jid='" . jabber_daemon_address() . "' />\n";
	$address .= "</addresses>\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 $html . $entry . $address;
	return $entry . $address;
#	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,
							  $type = 'available', $priority=NULL)
{
	$conn = jabber_connect();
	if (!$conn) {
		return false;
	}
	$conn->presence($status, $show, $to, $type, $priority);
	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) {

	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 false;
	}

	$msg = jabber_format_notice($profile, $notice);
	$entry = jabber_format_entry($profile, $notice);

	$sent_to = array();
	$conn = jabber_connect();

	# First, get users to whom this is a direct reply
	$user = new User();
	$user->query('SELECT user.id, user.jabber ' .
				 'FROM user JOIN reply ON user.id = reply.profile_id ' .
				 'WHERE reply.notice_id = ' . $notice->id . ' ' .
				 'AND user.jabber is not null ' .
				 'AND user.jabbernotify = 1 ' .
				 'AND user.jabberreplies = 1 ');

	while ($user->fetch()) {
		common_log(LOG_INFO,
				   'Sending reply notice ' . $notice->id . ' to ' . $user->jabber,
				   __FILE__);
		$conn->message($user->jabber, $msg, 'chat', NULL, $entry);
		$sent_to[$user->id] = 1;
	}

    # Now, get users subscribed to this profile

	$user = new User();
	$user->query('SELECT user.id, user.jabber ' .
				 'FROM user JOIN subscription ON user.id = subscription.subscriber ' .
				 'WHERE subscription.subscribed = ' . $notice->profile_id . ' ' .
				 'AND user.jabber is not null ' .
				 'AND user.jabbernotify = 1 ');

	while ($user->fetch()) {
		if (!array_key_exists($user->id, $sent_to)) {
			common_log(LOG_INFO,
					   'Sending notice ' . $notice->id . ' to ' . $user->jabber,
					   __FILE__);
			$conn->message($user->jabber, $msg, 'chat', NULL, $entry);
		}
	}

	return true;
}

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) {
		$profile = Profile::staticGet($notice->profile_id);

		if (!$profile) {
			common_log(LOG_WARNING, 'Refusing to broadcast notice with ' .
					   'unknown profile ' . common_log_objstring($notice),
					   __FILE__);
			return false;
		}

		$msg = jabber_format_notice($profile, $notice);
		$entry = jabber_format_entry($profile, $notice);

		$conn = jabber_connect();

		foreach ($public as $address) {
			common_log(LOG_INFO,
					   'Sending notice ' . $notice->id . ' to public listener ' . $address,
					   __FILE__);
			$conn->message($address, $msg, 'chat', NULL, $entry);
		}
	}

	return true;
}

function jabber_format_notice(&$profile, &$notice) {
	return $profile->nickname . ': ' . $notice->content;
}