aboutsummaryrefslogtreecommitdiffstats
path: root/include/delivery.php
blob: f6ebe9dede09d16c05b94e571b602ae1e229ad7f (plain) (blame)
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
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
<?php
require_once("boot.php");
require_once('include/queue_fn.php');
require_once('include/html2plain.php');

function delivery_run($argv, $argc){
	global $a, $db;

	if(is_null($a)){
		$a = new App;
	}

	if(is_null($db)) {
		@include(".htconfig.php");
		require_once("dba.php");
		$db = new dba($db_host, $db_user, $db_pass, $db_data);
		        unset($db_host, $db_user, $db_pass, $db_data);
	}

	require_once("session.php");
	require_once("datetime.php");
	require_once('include/items.php');
	require_once('include/bbcode.php');
	require_once('include/email.php');

	load_config('config');
	load_config('system');

	load_hooks();

	if($argc < 3)
		return;

	$a->set_baseurl(get_config('system','url'));

	logger('delivery: invoked: ' . print_r($argv,true), LOGGER_DEBUG);

	$cmd        = $argv[1];
	$item_id    = intval($argv[2]);

	for($x = 3; $x < $argc; $x ++) {

		$contact_id = intval($argv[$x]);

		// Some other process may have delivered this item already.

		$r = q("select * from deliverq where cmd = '%s' and item = %d and contact = %d limit 1",
			dbesc($cmd),
			dbesc($item_id),
			dbesc($contact_id)
		);
		if(! count($r)) {
			continue;
		}	

		$maxsysload = intval(get_config('system','maxloadavg'));
		if($maxsysload < 1)
			$maxsysload = 50;
		if(function_exists('sys_getloadavg')) {
			$load = sys_getloadavg();
			if(intval($load[0]) > $maxsysload) {
				logger('system: load ' . $load . ' too high. Delivery deferred to next queue run.');
				return;
			}
		}

		// It's ours to deliver. Remove it from the queue.
		// should probably set to "pending" or some such

		q("delete from deliverq where cmd = '%s' and item = %d and contact = %d limit 1",
			dbesc($cmd),
			dbesc($item_id),
			dbesc($contact_id)
		);

		if((! $item_id) || (! $contact_id))
			continue;

		$expire = false;
		$top_level = false;
		$recipients = array();
		$url_recipients = array();

		$normal_mode = true;

		$recipients[] = $contact_id;

		if($cmd === 'expire') {
			$normal_mode = false;
			$expire = true;
			$items = q("SELECT * FROM `item` WHERE `uid` = %d AND `wall` = 1 
				AND `deleted` = 1 AND `changed` > UTC_TIMESTAMP() - INTERVAL 30 MINUTE",
				intval($item_id)
			);
			$uid = $item_id;
			$item_id = 0;
			if(! count($items))
			continue;
		}
		else {

			// find ancestors
			$r = q("SELECT * FROM `item` WHERE `id` = %d and visible = 1 and moderated = 0 LIMIT 1",
				intval($item_id)
			);

			if((! count($r)) || (! intval($r[0]['parent']))) {
				continue;
			}

			$target_item = $r[0];
			$parent_id = intval($r[0]['parent']);
			$uid = $r[0]['uid'];
			$updated = $r[0]['edited'];

			// POSSIBLE CLEANUP --> The following seems superfluous. We've already checked for "if (! intval($r[0]['parent']))" a few lines up
			if(! $parent_id)
				continue;


			$items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer` 
				FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d and visible = 1 and moderated = 0 ORDER BY `id` ASC",
				intval($parent_id)
			);

			if(! count($items)) {
				continue;
			}

			$icontacts = null;
			$contacts_arr = array();
			foreach($items as $item)
				if(! in_array($item['contact-id'],$contacts_arr))
					$contacts_arr[] = intval($item['contact-id']);
			if(count($contacts_arr)) {
				$str_contacts = implode(',',$contacts_arr); 
				$icontacts = q("SELECT * FROM `contact` 
					WHERE `id` IN ( $str_contacts ) "
				);
			}
			if( ! ($icontacts && count($icontacts)))
				continue;

			// avoid race condition with deleting entries

			if($items[0]['deleted']) {
				foreach($items as $item)
					$item['deleted'] = 1;
			}

			if((count($items) == 1) && ($items[0]['uri'] === $items[0]['parent_uri'])) {
				logger('delivery: top level post');
				$top_level = true;
			}
		}

		$r = q("SELECT `contact`.*, `user`.`pubkey` AS `upubkey`, `user`.`prvkey` AS `uprvkey`, 
			`user`.`timezone`, `user`.`nickname`, `user`.`page-flags`
			FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid` 
			WHERE `contact`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
			intval($uid)
		);

		if(! count($r))
			continue;

		$owner = $r[0];

		$walltowall = ((($top_level) && ($owner['id'] != $items[0]['contact-id'])) ? true : false);

		$public_message = true;

		// fill this in with a single salmon slap if applicable

		$slap = '';

		require_once('include/group.php');

		$parent = $items[0];

			// This is IMPORTANT!!!!

			// We will only send a "notify owner to relay" or followup message if the referenced post
			// originated on our system by virtue of having our hostname somewhere
			// in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
			// if $parent['wall'] == 1 we will already have the parent message in our array
			// and we will relay the whole lot.
 	
			// expire sends an entire group of expire messages and cannot be forwarded.
			// However the conversation owner will be a part of the conversation and will 
			// be notified during this run.
			// Other DFRN conversation members will be alerted during polled updates.

		$localhost = $a->get_hostname();
		if(strpos($localhost,':'))
			$localhost = substr($localhost,0,strpos($localhost,':'));

		/**
		 *
		 * Be VERY CAREFUL if you make any changes to the following line. Seemingly innocuous changes 
		 * have been known to cause runaway conditions which affected several servers, along with 
		 * permissions issues. 
		 *
		 */
 
		if((! $top_level) && ($parent['wall'] == 0) && (! $expire) && (stristr($target_item['uri'],$localhost))) {
			logger('relay denied for delivery agent.');

			/* no relay allowed for direct contact delivery */
			continue;
		}

		if((strlen($parent['allow_cid'])) 
			|| (strlen($parent['allow_gid'])) 
			|| (strlen($parent['deny_cid'])) 
			|| (strlen($parent['deny_gid']))) {
			$public_message = false; // private recipients, not public
		}

		$r = q("SELECT * FROM `contact` WHERE `id` = %d AND `blocked` = 0 AND `pending` = 0",
			intval($contact_id)
		);

		if(count($r))
			$contact = $r[0];
	
		$hubxml = feed_hublinks();

		logger('notifier: slaps: ' . print_r($slaps,true), LOGGER_DATA);

		require_once('include/salmon.php');

		if($contact['self'])
			continue;

		$deliver_status = 0;

		switch($contact['network']) {

			case NETWORK_DFRN :
				logger('notifier: dfrndelivery: ' . $contact['name']);

				$feed_template = get_markup_template('atom_feed.tpl');
				$mail_template = get_markup_template('atom_mail.tpl');

				$atom = '';


				$birthday = feed_birthday($owner['uid'],$owner['timezone']);

				if(strlen($birthday))
					$birthday = '<dfrn:birthday>' . xmlify($birthday) . '</dfrn:birthday>';

				$atom .= replace_macros($feed_template, array(
						'$version'      => xmlify(FRIENDICA_VERSION),
						'$feed_id'      => xmlify($a->get_baseurl() . '/profile/' . $owner['nickname'] ),
						'$feed_title'   => xmlify($owner['name']),
						'$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', $updated . '+00:00' , ATOM_TIME)) ,
						'$hub'          => $hubxml,
						'$salmon'       => '',  // private feed, we don't use salmon here
						'$name'         => xmlify($owner['name']),
						'$profile_page' => xmlify($owner['url']),
						'$photo'        => xmlify($owner['photo']),
						'$thumb'        => xmlify($owner['thumb']),
						'$picdate'      => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
						'$uridate'      => xmlify(datetime_convert('UTC','UTC',$owner['uri-date']    . '+00:00' , ATOM_TIME)) ,
						'$namdate'      => xmlify(datetime_convert('UTC','UTC',$owner['name-date']   . '+00:00' , ATOM_TIME)) ,
						'$birthday'     => $birthday,
						'$community'    => (($owner['page-flags'] == PAGE_COMMUNITY) ? '<dfrn:community>1</dfrn:community>' : '')
				));

				foreach($items as $item) {
					if(! $item['parent'])
						continue;

					// private emails may be in included in public conversations. Filter them.
					if(($public_message) && $item['private'] == 1)
						continue;

					$item_contact = get_item_contact($item,$icontacts);
					if(! $item_contact)
						continue;

					if($normal_mode) {
						if($item_id == $item['id'] || $item['id'] == $item['parent'])
							$atom .= atom_entry($item,'text',null,$owner,true,(($top_level) ? $contact['id'] : 0));
					}
					else
						$atom .= atom_entry($item,'text',null,$owner,true);

				}

				$atom .= '</feed>' . "\r\n";
	
				logger('notifier: ' . $atom, LOGGER_DATA);
				$basepath =  implode('/', array_slice(explode('/',$contact['url']),0,3));

				// perform local delivery if we are on the same site

				if(link_compare($basepath,$a->get_baseurl())) {

					$nickname = basename($contact['url']);
					if($contact['issued-id'])
						$sql_extra = sprintf(" AND `dfrn-id` = '%s' ", dbesc($contact['issued-id']));
					else
						$sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($contact['dfrn-id']));

					$x = q("SELECT	`contact`.*, `contact`.`uid` AS `importer_uid`, 
						`contact`.`pubkey` AS `cpubkey`, 
						`contact`.`prvkey` AS `cprvkey`, 
						`contact`.`thumb` AS `thumb`, 
						`contact`.`url` as `url`,
						`contact`.`name` as `senderName`,
						`user`.* 
						FROM `contact` 
						LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid` 
						WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
						AND `contact`.`network` = '%s' AND `user`.`nickname` = '%s'
						$sql_extra
						AND `user`.`account_expired` = 0 LIMIT 1",
						dbesc(NETWORK_DFRN),
						dbesc($nickname)
					);

					if(count($x)) {
						if($owner['page-flags'] == PAGE_COMMUNITY && ! $x[0]['writable']) {
							q("update contact set writable = 1 where id = %d limit 1",
								intval($x[0]['id'])
							);
							$x[0]['writable'] = 1;
						}

						$ssl_policy = get_config('system','ssl_policy');
						fix_contact_ssl_policy($x[0],$ssl_policy);

						// If we are setup as a soapbox we aren't accepting input from this person

						if($x[0]['page-flags'] == PAGE_SOAPBOX)
							break;

						require_once('library/simplepie/simplepie.inc');
						logger('mod-delivery: local delivery');
						local_delivery($x[0],$atom);
						break;
					}
				}

				if(! was_recently_delayed($contact['id']))
					$deliver_status = dfrn_deliver($owner,$contact,$atom);
				else
					$deliver_status = (-1);

				logger('notifier: dfrn_delivery returns ' . $deliver_status);

				if($deliver_status == (-1)) {
					logger('notifier: delivery failed: queuing message');
					add_to_queue($contact['id'],NETWORK_DFRN,$atom);
				}
				break;

			default:
				break;
		}
	}

	return;
}

if (array_search(__file__,get_included_files())===0){
  delivery_run($argv,$argc);
  killme();
}