4 * @file src/Model/Item.php
7 namespace Friendica\Model;
9 use Friendica\BaseObject;
10 use Friendica\Content\Text;
11 use Friendica\Core\Addon;
12 use Friendica\Core\Config;
13 use Friendica\Core\L10n;
14 use Friendica\Core\PConfig;
15 use Friendica\Core\System;
16 use Friendica\Core\Worker;
17 use Friendica\Database\DBM;
18 use Friendica\Model\Contact;
19 use Friendica\Model\Conversation;
20 use Friendica\Model\Group;
21 use Friendica\Model\Term;
22 use Friendica\Object\Image;
23 use Friendica\Protocol\Diaspora;
24 use Friendica\Protocol\OStatus;
25 use Friendica\Util\DateTimeFormat;
26 use Friendica\Util\XML;
28 use Text_LanguageDetect;
30 require_once 'boot.php';
31 require_once 'include/items.php';
32 require_once 'include/text.php';
34 class Item extends BaseObject
37 * @brief Update existing item entries
39 * @param array $fields The fields that are to be changed
40 * @param array $condition The condition for finding the item entries
42 * In the future we may have to change permissions as well.
43 * Then we had to add the user id as third parameter.
45 * A return value of "0" doesn't mean an error - but that 0 rows had been changed.
47 * @return integer|boolean number of affected rows - or "false" if there was an error
49 public static function update(array $fields, array $condition)
51 if (empty($condition) || empty($fields)) {
55 $success = dba::update('item', $fields, $condition);
61 $rows = dba::affected_rows();
63 // We cannot simply expand the condition to check for origin entries
64 // The condition needn't to be a simple array but could be a complex condition.
65 $items = dba::select('item', ['id', 'origin'], $condition);
66 while ($item = dba::fetch($items)) {
67 Term::insertFromTagFieldByItemId($item['id']);
68 Term::insertFromFileFieldByItemId($item['id']);
69 self::updateThread($item['id']);
71 // We only need to notfiy others when it is an original entry from us
72 if ($item['origin']) {
73 Worker::add(PRIORITY_HIGH, "Notifier", 'edit_post', $item['id']);
81 * @brief Delete an item and notify others about it - if it was ours
83 * @param array $condition The condition for finding the item entries
84 * @param integer $priority Priority for the notification
86 public static function delete($condition, $priority = PRIORITY_HIGH)
88 $items = dba::select('item', ['id'], $condition);
89 while ($item = dba::fetch($items)) {
90 self::deleteById($item['id'], $priority);
96 * @brief Delete an item and notify others about it - if it was ours
98 * @param integer $item_id Item ID that should be delete
99 * @param integer $priority Priority for the notification
101 * @return boolean success
103 public static function deleteById($item_id, $priority = PRIORITY_HIGH)
105 // locate item to be deleted
106 $fields = ['id', 'uid', 'parent', 'parent-uri', 'origin', 'deleted',
107 'file', 'resource-id', 'event-id', 'attach',
108 'verb', 'object-type', 'object', 'target', 'contact-id'];
109 $item = dba::selectFirst('item', $fields, ['id' => $item_id]);
110 if (!DBM::is_result($item)) {
114 if ($item['deleted']) {
118 $parent = dba::selectFirst('item', ['origin'], ['id' => $item['parent']]);
119 if (!DBM::is_result($parent)) {
120 $parent = ['origin' => false];
123 logger('delete item: ' . $item['id'], LOGGER_DEBUG);
125 // clean up categories and tags so they don't end up as orphans
128 $cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
130 foreach ($matches as $mtch) {
131 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],true);
137 $cnt = preg_match_all('/\[(.*?)\]/', $item['file'], $matches, PREG_SET_ORDER);
139 foreach ($matches as $mtch) {
140 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],false);
145 * If item is a link to a photo resource, nuke all the associated photos
146 * (visitors will not have photo resources)
147 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
148 * generate a resource-id and therefore aren't intimately linked to the item.
150 if (strlen($item['resource-id'])) {
151 dba::delete('photo', ['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
154 // If item is a link to an event, delete the event.
155 if (intval($item['event-id'])) {
156 Event::delete($item['event-id']);
159 // If item has attachments, drop them
160 foreach (explode(", ", $item['attach']) as $attach) {
161 preg_match("|attach/(\d+)|", $attach, $matches);
162 dba::delete('attach', ['id' => $matches[1], 'uid' => $item['uid']]);
165 // Delete tags that had been attached to other items
166 self::deleteTagsFromItem($item);
168 // Set the item to "deleted"
169 dba::update('item', ['deleted' => true, 'title' => '', 'body' => '',
170 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()],
171 ['id' => $item['id']]);
173 Term::insertFromTagFieldByItemId($item['id']);
174 Term::insertFromFileFieldByItemId($item['id']);
175 self::deleteThread($item['id'], $item['parent-uri']);
177 // If it's the parent of a comment thread, kill all the kids
178 if ($item['id'] == $item['parent']) {
179 self::delete(['parent' => $item['parent']], $priority);
182 // send the notification upstream/downstream
183 if ($item['origin'] || $parent['origin']) {
184 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", "drop", intval($item['id']));
190 private static function deleteTagsFromItem($item)
192 if (($item["verb"] != ACTIVITY_TAG) || ($item["object-type"] != ACTIVITY_OBJ_TAGTERM)) {
196 $xo = XML::parseString($item["object"], false);
197 $xt = XML::parseString($item["target"], false);
199 if ($xt->type != ACTIVITY_OBJ_NOTE) {
203 $i = dba::selectFirst('item', ['id', 'contact-id', 'tag'], ['uri' => $xt->id, 'uid' => $item['uid']]);
204 if (!DBM::is_result($i)) {
208 // For tags, the owner cannot remove the tag on the author's copy of the post.
209 $owner_remove = ($item["contact-id"] == $i["contact-id"]);
210 $author_copy = $item["origin"];
212 if (($owner_remove && $author_copy) || !$owner_remove) {
216 $tags = explode(',', $i["tag"]);
219 foreach ($tags as $tag) {
220 if (trim($tag) !== trim($xo->body)) {
221 $newtags[] = trim($tag);
225 self::update(['tag' => implode(',', $newtags)], ['id' => $i["id"]]);
228 private static function guid($item, $notify)
230 $guid = notags(trim($item['guid']));
237 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
238 // We add the hash of our own host because our host is the original creator of the post.
239 $prefix_host = get_app()->get_hostname();
243 // We are only storing the post so we create a GUID from the original hostname.
244 if (!empty($item['author-link'])) {
245 $parsed = parse_url($item['author-link']);
246 if (!empty($parsed['host'])) {
247 $prefix_host = $parsed['host'];
251 if (empty($prefix_host) && !empty($item['plink'])) {
252 $parsed = parse_url($item['plink']);
253 if (!empty($parsed['host'])) {
254 $prefix_host = $parsed['host'];
258 if (empty($prefix_host) && !empty($item['uri'])) {
259 $parsed = parse_url($item['uri']);
260 if (!empty($parsed['host'])) {
261 $prefix_host = $parsed['host'];
265 // Is it in the format data@host.tld? - Used for mail contacts
266 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
267 $mailparts = explode('@', $item['author-link']);
268 $prefix_host = array_pop($mailparts);
272 if (!empty($item['plink'])) {
273 $guid = self::guidFromUri($item['plink'], $prefix_host);
274 } elseif (!empty($item['uri'])) {
275 $guid = self::guidFromUri($item['uri'], $prefix_host);
277 $guid = get_guid(32, hash('crc32', $prefix_host));
283 private static function contactId($item)
285 $contact_id = (int)$item["contact-id"];
287 if (!empty($contact_id)) {
290 logger('Missing contact-id. Called by: '.System::callstack(), LOGGER_DEBUG);
292 * First we are looking for a suitable contact that matches with the author of the post
293 * This is done only for comments
295 if ($item['parent-uri'] != $item['uri']) {
296 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
299 // If not present then maybe the owner was found
300 if ($contact_id == 0) {
301 $contact_id = Contact::getIdForURL($item['owner-link'], $item['uid']);
304 // Still missing? Then use the "self" contact of the current user
305 if ($contact_id == 0) {
306 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $item['uid']]);
307 if (DBM::is_result($self)) {
308 $contact_id = $self["id"];
311 logger("Contact-id was missing for post ".$item['guid']." from user id ".$item['uid']." - now set to ".$contact_id, LOGGER_DEBUG);
316 public static function insert($item, $force_parent = false, $notify = false, $dontcache = false)
320 // If it is a posting where users should get notifications, then define it as wall posting
323 $item['type'] = 'wall';
325 $item['network'] = NETWORK_DFRN;
326 $item['protocol'] = PROTOCOL_DFRN;
328 $item['network'] = trim(defaults($item, 'network', NETWORK_PHANTOM));
331 $item['guid'] = self::guid($item, $notify);
332 $item['uri'] = notags(trim(defaults($item, 'uri', item_new_uri($a->get_hostname(), $item['uid'], $item['guid']))));
334 // Store conversation data
335 $item = Conversation::insert($item);
338 * If a Diaspora signature structure was passed in, pull it out of the
339 * item array and set it aside for later storage.
343 if (x($item, 'dsprsig')) {
344 $encoded_signature = $item['dsprsig'];
345 $dsprsig = json_decode(base64_decode($item['dsprsig']));
346 unset($item['dsprsig']);
349 // Converting the plink
350 /// @TODO Check if this is really still needed
351 if ($item['network'] == NETWORK_OSTATUS) {
352 if (isset($item['plink'])) {
353 $item['plink'] = OStatus::convertHref($item['plink']);
354 } elseif (isset($item['uri'])) {
355 $item['plink'] = OStatus::convertHref($item['uri']);
359 if (!empty($item['thr-parent'])) {
360 $item['parent-uri'] = $item['thr-parent'];
363 if (x($item, 'gravity')) {
364 $item['gravity'] = intval($item['gravity']);
365 } elseif ($item['parent-uri'] === $item['uri']) {
366 $item['gravity'] = 0;
367 } elseif (activity_match($item['verb'],ACTIVITY_POST)) {
368 $item['gravity'] = 6;
370 $item['gravity'] = 6; // extensible catchall
373 $item['type'] = defaults($item, 'type', 'remote');
375 $uid = intval($item['uid']);
377 // check for create date and expire time
378 $expire_interval = Config::get('system', 'dbclean-expire-days', 0);
380 $user = dba::selectFirst('user', ['expire'], ['uid' => $uid]);
381 if (DBM::is_result($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
382 $expire_interval = $user['expire'];
385 if (($expire_interval > 0) && !empty($item['created'])) {
386 $expire_date = time() - ($expire_interval * 86400);
387 $created_date = strtotime($item['created']);
388 if ($created_date < $expire_date) {
389 logger('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($item,true), LOGGER_DEBUG);
395 * Do we already have this item?
396 * We have to check several networks since Friendica posts could be repeated
397 * via OStatus (maybe Diasporsa as well)
399 if (in_array($item['network'], [NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS, ""])) {
400 $condition = ["`uri` = ? AND `uid` = ? AND `network` IN (?, ?, ?)",
401 trim($item['uri']), $item['uid'],
402 NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS];
403 $existing = dba::selectFirst('item', ['id', 'network'], $condition);
404 if (DBM::is_result($existing)) {
405 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
407 logger("Item with uri ".$item['uri']." already existed for user ".$uid." with id ".$existing["id"]." target network ".$existing["network"]." - new network: ".$item['network']);
410 return $existing["id"];
414 self::addLanguageInPostopts($item);
416 $item['wall'] = intval(defaults($item, 'wall', 0));
417 $item['extid'] = trim(defaults($item, 'extid', ''));
418 $item['author-name'] = trim(defaults($item, 'author-name', ''));
419 $item['author-link'] = trim(defaults($item, 'author-link', ''));
420 $item['author-avatar'] = trim(defaults($item, 'author-avatar', ''));
421 $item['owner-name'] = trim(defaults($item, 'owner-name', ''));
422 $item['owner-link'] = trim(defaults($item, 'owner-link', ''));
423 $item['owner-avatar'] = trim(defaults($item, 'owner-avatar', ''));
424 $item['received'] = ((x($item, 'received') !== false) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
425 $item['created'] = ((x($item, 'created') !== false) ? DateTimeFormat::utc($item['created']) : $item['received']);
426 $item['edited'] = ((x($item, 'edited') !== false) ? DateTimeFormat::utc($item['edited']) : $item['created']);
427 $item['changed'] = ((x($item, 'changed') !== false) ? DateTimeFormat::utc($item['changed']) : $item['created']);
428 $item['commented'] = ((x($item, 'commented') !== false) ? DateTimeFormat::utc($item['commented']) : $item['created']);
429 $item['title'] = trim(defaults($item, 'title', ''));
430 $item['location'] = trim(defaults($item, 'location', ''));
431 $item['coord'] = trim(defaults($item, 'coord', ''));
432 $item['visible'] = ((x($item, 'visible') !== false) ? intval($item['visible']) : 1);
433 $item['deleted'] = 0;
434 $item['parent-uri'] = trim(defaults($item, 'parent-uri', $item['uri']));
435 $item['verb'] = trim(defaults($item, 'verb', ''));
436 $item['object-type'] = trim(defaults($item, 'object-type', ''));
437 $item['object'] = trim(defaults($item, 'object', ''));
438 $item['target-type'] = trim(defaults($item, 'target-type', ''));
439 $item['target'] = trim(defaults($item, 'target', ''));
440 $item['plink'] = trim(defaults($item, 'plink', ''));
441 $item['allow_cid'] = trim(defaults($item, 'allow_cid', ''));
442 $item['allow_gid'] = trim(defaults($item, 'allow_gid', ''));
443 $item['deny_cid'] = trim(defaults($item, 'deny_cid', ''));
444 $item['deny_gid'] = trim(defaults($item, 'deny_gid', ''));
445 $item['private'] = intval(defaults($item, 'private', 0));
446 $item['bookmark'] = intval(defaults($item, 'bookmark', 0));
447 $item['body'] = trim(defaults($item, 'body', ''));
448 $item['tag'] = trim(defaults($item, 'tag', ''));
449 $item['attach'] = trim(defaults($item, 'attach', ''));
450 $item['app'] = trim(defaults($item, 'app', ''));
451 $item['origin'] = intval(defaults($item, 'origin', 0));
452 $item['postopts'] = trim(defaults($item, 'postopts', ''));
453 $item['resource-id'] = trim(defaults($item, 'resource-id', ''));
454 $item['event-id'] = intval(defaults($item, 'event-id', 0));
455 $item['inform'] = trim(defaults($item, 'inform', ''));
456 $item['file'] = trim(defaults($item, 'file', ''));
458 // When there is no content then we don't post it
459 if ($item['body'].$item['title'] == '') {
463 // Items cannot be stored before they happen ...
464 if ($item['created'] > DateTimeFormat::utcNow()) {
465 $item['created'] = DateTimeFormat::utcNow();
468 // We haven't invented time travel by now.
469 if ($item['edited'] > DateTimeFormat::utcNow()) {
470 $item['edited'] = DateTimeFormat::utcNow();
473 if (($item['author-link'] == "") && ($item['owner-link'] == "")) {
474 logger("Both author-link and owner-link are empty. Called by: " . System::callstack(), LOGGER_DEBUG);
477 $item['plink'] = defaults($item, 'plink', System::baseUrl() . '/display/' . urlencode($item['guid']));
479 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
480 $item["contact-id"] = self::contactId($item);
482 $item['author-id'] = defaults($item, 'author-id', Contact::getIdForURL($item["author-link"]));
484 if (Contact::isBlocked($item["author-id"])) {
485 logger('Contact '.$item["author-id"].' is blocked, item '.$item["uri"].' will not be stored');
489 $item['owner-id'] = defaults($item, 'owner-id', Contact::getIdForURL($item["owner-link"]));
491 if (Contact::isBlocked($item["owner-id"])) {
492 logger('Contact '.$item["owner-id"].' is blocked, item '.$item["uri"].' will not be stored');
496 if ($item['network'] == NETWORK_PHANTOM) {
497 logger('Missing network. Called by: '.System::callstack(), LOGGER_DEBUG);
499 $contact = Contact::getDetailsByURL($item['author-link'], $item['uid']);
500 if (!empty($contact['network'])) {
501 $item['network'] = $contact["network"];
503 $item['network'] = NETWORK_DFRN;
505 logger("Set network to " . $item["network"] . " for " . $item["uri"], LOGGER_DEBUG);
508 // Checking if there is already an item with the same guid
509 logger('Checking for an item for user '.$item['uid'].' on network '.$item['network'].' with the guid '.$item['guid'], LOGGER_DEBUG);
510 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
511 if (dba::exists('item', $condition)) {
512 logger('found item with guid '.$item['guid'].' for user '.$item['uid'].' on network '.$item['network'], LOGGER_DEBUG);
516 // Check for hashtags in the body and repair or add hashtag links
517 self::setHashtags($item);
519 $item['thr-parent'] = $item['parent-uri'];
527 if ($item['parent-uri'] === $item['uri']) {
530 $allow_cid = $item['allow_cid'];
531 $allow_gid = $item['allow_gid'];
532 $deny_cid = $item['deny_cid'];
533 $deny_gid = $item['deny_gid'];
534 $notify_type = 'wall-new';
536 // find the parent and snarf the item id and ACLs
537 // and anything else we need to inherit
539 $fields = ['uri', 'parent-uri', 'id', 'deleted',
540 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
541 'wall', 'private', 'forum_mode'];
542 $condition = ['uri' => $item['parent-uri'], 'uid' => $item['uid']];
543 $params = ['order' => ['id' => false]];
544 $parent = dba::selectFirst('item', $fields, $condition, $params);
546 if (DBM::is_result($parent)) {
547 // is the new message multi-level threaded?
548 // even though we don't support it now, preserve the info
549 // and re-attach to the conversation parent.
551 if ($parent['uri'] != $parent['parent-uri']) {
552 $item['parent-uri'] = $parent['parent-uri'];
554 $condition = ['uri' => $item['parent-uri'],
555 'parent-uri' => $item['parent-uri'],
556 'uid' => $item['uid']];
557 $params = ['order' => ['id' => false]];
558 $toplevel_parent = dba::selectFirst('item', $fields, $condition, $params);
560 if (DBM::is_result($toplevel_parent)) {
561 $parent = $toplevel_parent;
565 $parent_id = $parent['id'];
566 $parent_deleted = $parent['deleted'];
567 $allow_cid = $parent['allow_cid'];
568 $allow_gid = $parent['allow_gid'];
569 $deny_cid = $parent['deny_cid'];
570 $deny_gid = $parent['deny_gid'];
571 $item['wall'] = $parent['wall'];
572 $notify_type = 'comment-new';
575 * If the parent is private, force privacy for the entire conversation
576 * This differs from the above settings as it subtly allows comments from
577 * email correspondents to be private even if the overall thread is not.
579 if ($parent['private']) {
580 $item['private'] = $parent['private'];
584 * Edge case. We host a public forum that was originally posted to privately.
585 * The original author commented, but as this is a comment, the permissions
586 * weren't fixed up so it will still show the comment as private unless we fix it here.
588 if ((intval($parent['forum_mode']) == 1) && $parent['private']) {
589 $item['private'] = 0;
592 // If its a post from myself then tag the thread as "mention"
593 logger("Checking if parent ".$parent_id." has to be tagged as mention for user ".$item['uid'], LOGGER_DEBUG);
594 $user = dba::selectFirst('user', ['nickname'], ['uid' => $item['uid']]);
595 if (DBM::is_result($user)) {
596 $self = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
597 logger("'myself' is ".$self." for parent ".$parent_id." checking against ".$item['author-link']." and ".$item['owner-link'], LOGGER_DEBUG);
598 if ((normalise_link($item['author-link']) == $self) || (normalise_link($item['owner-link']) == $self)) {
599 dba::update('thread', ['mention' => true], ['iid' => $parent_id]);
600 logger("tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
605 * Allow one to see reply tweets from status.net even when
606 * we don't have or can't see the original post.
609 logger('$force_parent=true, reply converted to top-level post.');
611 $item['parent-uri'] = $item['uri'];
612 $item['gravity'] = 0;
614 logger('item parent '.$item['parent-uri'].' for '.$item['uid'].' was not found - ignoring item');
622 $condition = ["`uri` = ? AND `network` IN (?, ?) AND `uid` = ?",
623 $item['uri'], $item['network'], NETWORK_DFRN, $item['uid']];
624 if (dba::exists('item', $condition)) {
625 logger('duplicated item with the same uri found. '.print_r($item,true));
629 // On Friendica and Diaspora the GUID is unique
630 if (in_array($item['network'], [NETWORK_DFRN, NETWORK_DIASPORA])) {
631 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
632 if (dba::exists('item', $condition)) {
633 logger('duplicated item with the same guid found. '.print_r($item,true));
637 // Check for an existing post with the same content. There seems to be a problem with OStatus.
638 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
639 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
640 if (dba::exists('item', $condition)) {
641 logger('duplicated item with the same body found. '.print_r($item,true));
646 // Is this item available in the global items (with uid=0)?
647 if ($item["uid"] == 0) {
648 $item["global"] = true;
650 // Set the global flag on all items if this was a global item entry
651 dba::update('item', ['global' => true], ['uri' => $item["uri"]]);
653 $item["global"] = dba::exists('item', ['uid' => 0, 'uri' => $item["uri"]]);
657 if (strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid)) {
660 $private = $item['private'];
663 $item["allow_cid"] = $allow_cid;
664 $item["allow_gid"] = $allow_gid;
665 $item["deny_cid"] = $deny_cid;
666 $item["deny_gid"] = $deny_gid;
667 $item["private"] = $private;
668 $item["deleted"] = $parent_deleted;
670 // Fill the cache field
671 put_item_in_cache($item);
674 Addon::callHooks('post_local', $item);
676 Addon::callHooks('post_remote', $item);
679 // This array field is used to trigger some automatic reactions
680 // It is mainly used in the "post_local" hook.
681 unset($item['api_source']);
683 if (x($item, 'cancel')) {
684 logger('post cancelled by addon.');
689 * Check for already added items.
690 * There is a timing issue here that sometimes creates double postings.
691 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
693 if ($item["uid"] == 0) {
694 if (dba::exists('item', ['uri' => trim($item['uri']), 'uid' => 0])) {
695 logger('Global item already stored. URI: '.$item['uri'].' on network '.$item['network'], LOGGER_DEBUG);
700 logger('' . print_r($item,true), LOGGER_DATA);
703 $ret = dba::insert('item', $item);
705 // When the item was successfully stored we fetch the ID of the item.
706 if (DBM::is_result($ret)) {
707 $current_post = dba::lastInsertId();
709 // This can happen - for example - if there are locking timeouts.
712 // Store the data into a spool file so that we can try again later.
714 // At first we restore the Diaspora signature that we removed above.
715 if (isset($encoded_signature)) {
716 $item['dsprsig'] = $encoded_signature;
719 // Now we store the data in the spool directory
720 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
721 $file = 'item-'.round(microtime(true) * 10000).'-'.mt_rand().'.msg';
723 $spoolpath = get_spoolpath();
724 if ($spoolpath != "") {
725 $spool = $spoolpath.'/'.$file;
726 file_put_contents($spool, json_encode($item));
727 logger("Item wasn't stored - Item was spooled into file ".$file, LOGGER_DEBUG);
732 if ($current_post == 0) {
733 // This is one of these error messages that never should occur.
734 logger("couldn't find created item - we better quit now.");
739 // How much entries have we created?
740 // We wouldn't need this query when we could use an unique index - but MySQL has length problems with them.
741 $entries = dba::count('item', ['uri' => $item['uri'], 'uid' => $item['uid'], 'network' => $item['network']]);
744 // There are duplicates. We delete our just created entry.
745 logger('Duplicated post occurred. uri = ' . $item['uri'] . ' uid = ' . $item['uid']);
747 // Yes, we could do a rollback here - but we are having many users with MyISAM.
748 dba::delete('item', ['id' => $current_post]);
751 } elseif ($entries == 0) {
752 // This really should never happen since we quit earlier if there were problems.
753 logger("Something is terribly wrong. We haven't found our created entry.");
758 logger('created item '.$current_post);
759 self::updateContact($item);
761 if (!$parent_id || ($item['parent-uri'] === $item['uri'])) {
762 $parent_id = $current_post;
766 dba::update('item', ['parent' => $parent_id], ['id' => $current_post]);
768 $item['id'] = $current_post;
769 $item['parent'] = $parent_id;
771 // update the commented timestamp on the parent
772 // Only update "commented" if it is really a comment
773 if (($item['verb'] == ACTIVITY_POST) || !Config::get("system", "like_no_comment")) {
774 dba::update('item', ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
776 dba::update('item', ['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
781 * Friendica servers lower than 3.4.3-2 had double encoded the signature ...
782 * We can check for this condition when we decode and encode the stuff again.
784 if (base64_encode(base64_decode(base64_decode($dsprsig->signature))) == base64_decode($dsprsig->signature)) {
785 $dsprsig->signature = base64_decode($dsprsig->signature);
786 logger("Repaired double encoded signature from handle ".$dsprsig->signer, LOGGER_DEBUG);
789 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $dsprsig->signed_text,
790 'signature' => $dsprsig->signature, 'signer' => $dsprsig->signer]);
793 $deleted = self::tagDeliver($item['uid'], $current_post);
796 * current post can be deleted if is for a community page and no mention are
799 if (!$deleted && !$dontcache) {
800 $posted_item = dba::selectFirst('item', [], ['id' => $current_post]);
801 if (DBM::is_result($posted_item)) {
803 Addon::callHooks('post_local_end', $posted_item);
805 Addon::callHooks('post_remote_end', $posted_item);
808 logger('new item not found in DB, id ' . $current_post);
812 if ($item['parent-uri'] === $item['uri']) {
813 self::addThread($current_post);
815 self::updateThread($parent_id);
821 * Due to deadlock issues with the "term" table we are doing these steps after the commit.
822 * This is not perfect - but a workable solution until we found the reason for the problem.
824 Term::insertFromTagFieldByItemId($current_post);
825 Term::insertFromFileFieldByItemId($current_post);
827 if ($item['parent-uri'] === $item['uri']) {
828 self::addShadow($current_post);
830 self::addShadowPost($current_post);
833 check_user_notification($current_post);
836 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "Notifier", $notify_type, $current_post);
839 return $current_post;
843 * @brief Distributes public items to the receivers
845 * @param integer $itemid Item ID that should be added
847 public static function distribute($itemid)
849 $condition = ["`id` IN (SELECT `parent` FROM `item` WHERE `id` = ?)", $itemid];
850 $parent = dba::selectFirst('item', ['owner-id'], $condition);
851 if (!DBM::is_result($parent)) {
855 // Only distribute public items from native networks
856 $condition = ['id' => $itemid, 'uid' => 0,
857 'network' => [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""],
858 'visible' => true, 'deleted' => false, 'moderated' => false, 'private' => false];
859 $item = dba::selectFirst('item', [], ['id' => $itemid]);
860 if (!DBM::is_result($item)) {
868 $condition = ["`nurl` IN (SELECT `nurl` FROM `contact` WHERE `id` = ?) AND `uid` != 0 AND NOT `blocked` AND NOT `readonly` AND `rel` IN (?, ?)",
869 $parent['owner-id'], CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
870 $contacts = dba::select('contact', ['uid'], $condition);
871 while ($contact = dba::fetch($contacts)) {
872 $users[$contact['uid']] = $contact['uid'];
875 if ($item['uri'] != $item['parent-uri']) {
876 $parents = dba::select('item', ['uid'], ["`uri` = ? AND `uid` != 0", $item['parent-uri']]);
877 while ($parent = dba::fetch($parents)) {
878 $users[$parent['uid']] = $parent['uid'];
882 foreach ($users as $uid) {
883 self::storeForUser($itemid, $item, $uid);
888 * @brief Store public items for the receivers
890 * @param integer $itemid Item ID that should be added
891 * @param array $item The item entry that will be stored
892 * @param integer $uid The user that will receive the item entry
894 private static function storeForUser($itemid, $item, $uid)
899 if ($item['uri'] == $item['parent-uri']) {
900 $item['contact-id'] = Contact::getIdForURL($item['owner-link'], $uid);
902 $item['contact-id'] = Contact::getIdForURL($item['author-link'], $uid);
905 if (empty($item['contact-id'])) {
906 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
907 if (!DBM::is_result($self)) {
910 $item['contact-id'] = $self['id'];
913 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
914 $item['type'] = 'remote-comment';
915 } elseif ($item['type'] == 'wall') {
916 $item['type'] = 'remote';
919 /// @todo Handling of "event-id"
921 $distributed = self::insert($item, false, false, true);
924 logger("Distributed public item " . $itemid . " for user " . $uid . " wasn't stored", LOGGER_DEBUG);
926 logger("Distributed public item " . $itemid . " for user " . $uid . " with id " . $distributed, LOGGER_DEBUG);
931 * @brief Add a shadow entry for a given item id that is a thread starter
933 * We store every public item entry additionally with the user id "0".
934 * This is used for the community page and for the search.
935 * It is planned that in the future we will store public item entries only once.
937 * @param integer $itemid Item ID that should be added
939 public static function addShadow($itemid)
941 $fields = ['uid', 'private', 'moderated', 'visible', 'deleted', 'network'];
942 $condition = ['id' => $itemid, 'parent' => [0, $itemid]];
943 $item = dba::selectFirst('item', $fields, $condition);
945 if (!DBM::is_result($item)) {
949 // is it already a copy?
950 if (($itemid == 0) || ($item['uid'] == 0)) {
954 // Is it a visible public post?
955 if (!$item["visible"] || $item["deleted"] || $item["moderated"] || $item["private"]) {
959 // is it an entry from a connector? Only add an entry for natively connected networks
960 if (!in_array($item["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
964 $item = dba::selectFirst('item', [], ['id' => $itemid]);
966 if (DBM::is_result($item) && ($item["allow_cid"] == '') && ($item["allow_gid"] == '') &&
967 ($item["deny_cid"] == '') && ($item["deny_gid"] == '')) {
969 if (!dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
970 // Preparing public shadow (removing user specific data)
975 if ($item['uri'] == $item['parent-uri']) {
976 $item['contact-id'] = Contact::getIdForURL($item['owner-link']);
978 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
981 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
982 $item['type'] = 'remote-comment';
983 } elseif ($item['type'] == 'wall') {
984 $item['type'] = 'remote';
987 $public_shadow = self::insert($item, false, false, true);
989 logger("Stored public shadow for thread ".$itemid." under id ".$public_shadow, LOGGER_DEBUG);
995 * @brief Add a shadow entry for a given item id that is a comment
997 * This function does the same like the function above - but for comments
999 * @param integer $itemid Item ID that should be added
1001 public static function addShadowPost($itemid)
1003 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1004 if (!DBM::is_result($item)) {
1008 // Is it a toplevel post?
1009 if ($item['id'] == $item['parent']) {
1010 self::addShadow($itemid);
1014 // Is this a shadow entry?
1015 if ($item['uid'] == 0)
1018 // Is there a shadow parent?
1019 if (!dba::exists('item', ['uri' => $item['parent-uri'], 'uid' => 0])) {
1023 // Is there already a shadow entry?
1024 if (dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
1028 // Preparing public shadow (removing user specific data)
1031 $item['origin'] = 0;
1033 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1035 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1036 $item['type'] = 'remote-comment';
1037 } elseif ($item['type'] == 'wall') {
1038 $item['type'] = 'remote';
1041 $public_shadow = self::insert($item, false, false, true);
1043 logger("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, LOGGER_DEBUG);
1047 * Adds a "lang" specification in a "postopts" element of given $arr,
1048 * if possible and not already present.
1049 * Expects "body" element to exist in $arr.
1051 private static function addLanguageInPostopts(&$item)
1053 if (!empty($item['postopts'])) {
1054 if (strstr($item['postopts'], 'lang=')) {
1058 $postopts = $item['postopts'];
1063 $naked_body = Text\BBCode::toPlaintext($item['body'], false);
1065 $languages = (new Text_LanguageDetect())->detect($naked_body, 3);
1067 if (sizeof($languages) > 0) {
1068 if ($postopts != '') {
1069 $postopts .= '&'; // arbitrary separator, to be reviewed
1072 $postopts .= 'lang=';
1075 foreach ($languages as $language => $score) {
1076 $postopts .= $sep . $language . ";" . $score;
1079 $item['postopts'] = $postopts;
1084 * @brief Creates an unique guid out of a given uri
1086 * @param string $uri uri of an item entry
1087 * @param string $host hostname for the GUID prefix
1088 * @return string unique guid
1090 public static function guidFromUri($uri, $host)
1092 // Our regular guid routine is using this kind of prefix as well
1093 // We have to avoid that different routines could accidentally create the same value
1094 $parsed = parse_url($uri);
1096 // We use a hash of the hostname as prefix for the guid
1097 $guid_prefix = hash("crc32", $host);
1099 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1100 unset($parsed["scheme"]);
1102 // Glue it together to be able to make a hash from it
1103 $host_id = implode("/", $parsed);
1105 // We could use any hash algorithm since it isn't a security issue
1106 $host_hash = hash("ripemd128", $host_id);
1108 return $guid_prefix.$host_hash;
1112 * @brief Set "success_update" and "last-item" to the date of the last time we heard from this contact
1114 * This can be used to filter for inactive contacts.
1115 * Only do this for public postings to avoid privacy problems, since poco data is public.
1116 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1118 * @param array $arr Contains the just posted item record
1120 private static function updateContact($arr)
1122 // Unarchive the author
1123 $contact = dba::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1124 if (DBM::is_result($contact)) {
1125 Contact::unmarkForArchival($contact);
1128 // Unarchive the contact if it's not our own contact
1129 $contact = dba::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
1130 if (DBM::is_result($contact)) {
1131 Contact::unmarkForArchival($contact);
1134 $update = (!$arr['private'] && (($arr["author-link"] === $arr["owner-link"]) || ($arr["parent-uri"] === $arr["uri"])));
1136 // Is it a forum? Then we don't care about the rules from above
1137 if (!$update && ($arr["network"] == NETWORK_DFRN) && ($arr["parent-uri"] === $arr["uri"])) {
1138 if (dba::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
1144 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1145 ['id' => $arr['contact-id']]);
1147 // Now do the same for the system wide contacts with uid=0
1148 if (!$arr['private']) {
1149 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1150 ['id' => $arr['owner-id']]);
1152 if ($arr['owner-id'] != $arr['author-id']) {
1153 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1154 ['id' => $arr['author-id']]);
1159 private static function setHashtags(&$item)
1162 $tags = get_tags($item["body"]);
1165 if (!count($tags)) {
1169 // This sorting is important when there are hashtags that are part of other hashtags
1170 // Otherwise there could be problems with hashtags like #test and #test2
1173 $URLSearchString = "^\[\]";
1175 // All hashtags should point to the home server if "local_tags" is activated
1176 if (Config::get('system', 'local_tags')) {
1177 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1178 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["body"]);
1180 $item["tag"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1181 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["tag"]);
1184 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
1185 $item["body"] = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1187 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
1190 $item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
1192 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
1195 $item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
1197 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
1200 // Repair recursive urls
1201 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1202 "#$2", $item["body"]);
1204 foreach ($tags as $tag) {
1205 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=')) {
1209 $basetag = str_replace('_',' ',substr($tag,1));
1211 $newtag = '#[url=' . System::baseUrl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
1213 $item["body"] = str_replace($tag, $newtag, $item["body"]);
1215 if (!stristr($item["tag"], "/search?tag=" . $basetag . "]" . $basetag . "[/url]")) {
1216 if (strlen($item["tag"])) {
1217 $item["tag"] = ','.$item["tag"];
1219 $item["tag"] = $newtag.$item["tag"];
1223 // Convert back the masked hashtags
1224 $item["body"] = str_replace("#", "#", $item["body"]);
1227 public static function getGuidById($id)
1229 $item = dba::selectFirst('item', ['guid'], ['id' => $id]);
1230 if (DBM::is_result($item)) {
1231 return $item['guid'];
1237 public static function getIdAndNickByGuid($guid, $uid = 0)
1243 $uid == local_user();
1246 // Does the given user have this item?
1248 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1249 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1250 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1251 AND `item`.`guid` = ? AND `item`.`uid` = ?", $guid, $uid);
1252 if (DBM::is_result($item)) {
1254 $nick = $item["nickname"];
1258 // Or is it anywhere on the server?
1260 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1261 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1262 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1263 AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = ''
1264 AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = ''
1265 AND NOT `item`.`private` AND `item`.`wall`
1266 AND `item`.`guid` = ?", $guid);
1267 if (DBM::is_result($item)) {
1269 $nick = $item["nickname"];
1272 return ["nick" => $nick, "id" => $id];
1276 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1278 * @param int $item_id
1279 * @return bool true if item was deleted, else false
1281 private static function tagDeliver($uid, $item_id)
1285 $user = dba::selectFirst('user', [], ['uid' => $uid]);
1286 if (!DBM::is_result($user)) {
1290 $community_page = (($user['page-flags'] == PAGE_COMMUNITY) ? true : false);
1291 $prvgroup = (($user['page-flags'] == PAGE_PRVGROUP) ? true : false);
1293 $item = dba::selectFirst('item', [], ['id' => $item_id]);
1294 if (!DBM::is_result($item)) {
1298 $link = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
1301 * Diaspora uses their own hardwired link URL in @-tags
1302 * instead of the one we supply with webfinger
1304 $dlink = normalise_link(System::baseUrl() . '/u/' . $user['nickname']);
1306 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
1308 foreach ($matches as $mtch) {
1309 if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) {
1311 logger('mention found: ' . $mtch[2]);
1317 if (($community_page || $prvgroup) &&
1318 !$item['wall'] && !$item['origin'] && ($item['id'] == $item['parent'])) {
1319 // mmh.. no mention.. community page or private group... no wall.. no origin.. top-post (not a comment)
1321 logger("no-mention top-level post to community or private group. delete.");
1322 dba::delete('item', ['id' => $item_id]);
1328 $arr = ['item' => $item, 'user' => $user];
1330 Addon::callHooks('tagged', $arr);
1332 if (!$community_page && !$prvgroup) {
1337 * tgroup delivery - setup a second delivery chain
1338 * prevent delivery looping - only proceed
1339 * if the message originated elsewhere and is a top-level post
1341 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
1345 // now change this copy of the post to a forum head message and deliver to all the tgroup members
1346 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
1347 if (!DBM::is_result($self)) {
1351 $owner_id = Contact::getIdForURL($self['url']);
1353 // also reset all the privacy bits to the forum default permissions
1355 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? 1 : 0;
1357 $forum_mode = ($prvgroup ? 2 : 1);
1359 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
1360 'owner-id' => $owner_id, 'owner-name' => $self['name'], 'owner-link' => $self['url'],
1361 'owner-avatar' => $self['thumb'], 'private' => $private, 'allow_cid' => $user['allow_cid'],
1362 'allow_gid' => $user['allow_gid'], 'deny_cid' => $user['deny_cid'], 'deny_gid' => $user['deny_gid']];
1363 dba::update('item', $fields, ['id' => $item_id]);
1365 self::updateThread($item_id);
1367 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', 'tgroup', $item_id);
1370 public static function isRemoteSelf($contact, &$datarray)
1374 if (!$contact['remote_self']) {
1378 // Prevent the forwarding of posts that are forwarded
1379 if ($datarray["extid"] == NETWORK_DFRN) {
1383 // Prevent to forward already forwarded posts
1384 if ($datarray["app"] == $a->get_hostname()) {
1388 // Only forward posts
1389 if ($datarray["verb"] != ACTIVITY_POST) {
1393 if (($contact['network'] != NETWORK_FEED) && $datarray['private']) {
1397 $datarray2 = $datarray;
1398 logger('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), LOGGER_DEBUG);
1399 if ($contact['remote_self'] == 2) {
1400 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
1401 ['uid' => $contact['uid'], 'self' => true]);
1402 if (DBM::is_result($self)) {
1403 $datarray['contact-id'] = $self["id"];
1405 $datarray['owner-name'] = $self["name"];
1406 $datarray['owner-link'] = $self["url"];
1407 $datarray['owner-avatar'] = $self["thumb"];
1409 $datarray['author-name'] = $datarray['owner-name'];
1410 $datarray['author-link'] = $datarray['owner-link'];
1411 $datarray['author-avatar'] = $datarray['owner-avatar'];
1413 unset($datarray['created']);
1414 unset($datarray['edited']);
1417 if ($contact['network'] != NETWORK_FEED) {
1418 $datarray["guid"] = get_guid(32);
1419 unset($datarray["plink"]);
1420 $datarray["uri"] = item_new_uri($a->get_hostname(), $contact['uid'], $datarray["guid"]);
1421 $datarray["parent-uri"] = $datarray["uri"];
1422 $datarray["extid"] = $contact['network'];
1423 $urlpart = parse_url($datarray2['author-link']);
1424 $datarray["app"] = $urlpart["host"];
1426 $datarray['private'] = 0;
1430 if ($contact['network'] != NETWORK_FEED) {
1431 // Store the original post
1432 $r = self::insert($datarray2, false, false);
1433 logger('remote-self post original item - Contact '.$contact['url'].' return '.$r.' Item '.print_r($datarray2, true), LOGGER_DEBUG);
1435 $datarray["app"] = "Feed";
1438 // Trigger automatic reactions for addons
1439 $datarray['api_source'] = true;
1441 // We have to tell the hooks who we are - this really should be improved
1442 $_SESSION["authenticated"] = true;
1443 $_SESSION["uid"] = $contact['uid'];
1452 * @param array $item
1456 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
1458 if (Config::get('system', 'disable_embedded')) {
1462 logger('check for photos', LOGGER_DEBUG);
1463 $site = substr(System::baseUrl(), strpos(System::baseUrl(), '://'));
1468 $img_start = strpos($orig_body, '[img');
1469 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
1470 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
1472 while (($img_st_close !== false) && ($img_len !== false)) {
1473 $img_st_close++; // make it point to AFTER the closing bracket
1474 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
1476 logger('found photo ' . $image, LOGGER_DEBUG);
1478 if (stristr($image, $site . '/photo/')) {
1479 // Only embed locally hosted photos
1481 $i = basename($image);
1482 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
1483 $x = strpos($i, '-');
1486 $res = substr($i, $x + 1);
1487 $i = substr($i, 0, $x);
1488 $fields = ['data', 'type', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
1489 $photo = dba::selectFirst('photo', $fields, ['resource-id' => $i, 'scale' => $res, 'uid' => $uid]);
1490 if (DBM::is_result($photo)) {
1492 * Check to see if we should replace this photo link with an embedded image
1493 * 1. No need to do so if the photo is public
1494 * 2. If there's a contact-id provided, see if they're in the access list
1495 * for the photo. If so, embed it.
1496 * 3. Otherwise, if we have an item, see if the item permissions match the photo
1497 * permissions, regardless of order but first check to see if they're an exact
1498 * match to save some processing overhead.
1500 if (self::hasPermissions($photo)) {
1502 $recips = self::enumeratePermissions($photo);
1503 if (in_array($cid, $recips)) {
1507 if (self::samePermissions($item, $photo)) {
1513 $data = $photo['data'];
1514 $type = $photo['type'];
1516 // If a custom width and height were specified, apply before embedding
1517 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
1518 logger('scaling photo', LOGGER_DEBUG);
1520 $width = intval($match[1]);
1521 $height = intval($match[2]);
1523 $Image = new Image($data, $type);
1524 if ($Image->isValid()) {
1525 $Image->scaleDown(max($width, $height));
1526 $data = $Image->asString();
1527 $type = $Image->getType();
1531 logger('replacing photo', LOGGER_DEBUG);
1532 $image = 'data:' . $type . ';base64,' . base64_encode($data);
1533 logger('replaced: ' . $image, LOGGER_DATA);
1539 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
1540 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
1541 if ($orig_body === false) {
1545 $img_start = strpos($orig_body, '[img');
1546 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
1547 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
1550 $new_body = $new_body . $orig_body;
1555 private static function hasPermissions($obj)
1559 x($obj, 'allow_cid')
1561 x($obj, 'allow_gid')
1570 private static function samePermissions($obj1, $obj2)
1572 // first part is easy. Check that these are exactly the same.
1573 if (($obj1['allow_cid'] == $obj2['allow_cid'])
1574 && ($obj1['allow_gid'] == $obj2['allow_gid'])
1575 && ($obj1['deny_cid'] == $obj2['deny_cid'])
1576 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
1580 // This is harder. Parse all the permissions and compare the resulting set.
1581 $recipients1 = self::enumeratePermissions($obj1);
1582 $recipients2 = self::enumeratePermissions($obj2);
1586 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
1587 return ($recipients1 == $recipients2);
1590 // returns an array of contact-ids that are allowed to see this object
1591 private static function enumeratePermissions($obj)
1593 $allow_people = expand_acl($obj['allow_cid']);
1594 $allow_groups = Group::expand(expand_acl($obj['allow_gid']));
1595 $deny_people = expand_acl($obj['deny_cid']);
1596 $deny_groups = Group::expand(expand_acl($obj['deny_gid']));
1597 $recipients = array_unique(array_merge($allow_people, $allow_groups));
1598 $deny = array_unique(array_merge($deny_people, $deny_groups));
1599 $recipients = array_diff($recipients, $deny);
1603 public static function getFeedTags($item)
1607 $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
1609 for ($x = 0; $x < $cnt; $x ++) {
1610 if ($matches[1][$x]) {
1611 $ret[$matches[2][$x]] = ['#', $matches[1][$x], $matches[2][$x]];
1616 $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
1618 for ($x = 0; $x < $cnt; $x ++) {
1619 if ($matches[1][$x]) {
1620 $ret[] = ['@', $matches[1][$x], $matches[2][$x]];
1627 public static function expire($uid, $days, $network = "", $force = false)
1629 if (!$uid || ($days < 1)) {
1634 * $expire_network_only = save your own wall posts
1635 * and just expire conversations started by others
1637 $expire_network_only = PConfig::get($uid,'expire', 'network_only');
1638 $sql_extra = (intval($expire_network_only) ? " AND wall = 0 " : "");
1640 if ($network != "") {
1641 $sql_extra .= sprintf(" AND network = '%s' ", dbesc($network));
1644 * There is an index "uid_network_received" but not "uid_network_created"
1645 * This avoids the creation of another index just for one purpose.
1646 * And it doesn't really matter wether to look at "received" or "created"
1648 $range = "AND `received` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
1650 $range = "AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
1653 $r = q("SELECT `file`, `resource-id`, `starred`, `type`, `id` FROM `item`
1654 WHERE `uid` = %d $range
1662 if (!DBM::is_result($r)) {
1666 $expire_items = PConfig::get($uid, 'expire', 'items', 1);
1668 // Forcing expiring of items - but not notes and marked items
1670 $expire_items = true;
1673 $expire_notes = PConfig::get($uid, 'expire', 'notes', 1);
1674 $expire_starred = PConfig::get($uid, 'expire', 'starred', 1);
1675 $expire_photos = PConfig::get($uid, 'expire', 'photos', 0);
1677 logger('User '.$uid.': expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
1679 foreach ($r as $item) {
1681 // don't expire filed items
1683 if (strpos($item['file'],'[') !== false) {
1687 // Only expire posts, not photos and photo comments
1689 if ($expire_photos == 0 && strlen($item['resource-id'])) {
1691 } elseif ($expire_starred == 0 && intval($item['starred'])) {
1693 } elseif ($expire_notes == 0 && $item['type'] == 'note') {
1695 } elseif ($expire_items == 0 && $item['type'] != 'note') {
1699 self::deleteById($item['id'], PRIORITY_LOW);
1703 public static function firstPostDate($uid, $wall = false)
1705 $condition = ['uid' => $uid, 'wall' => $wall, 'deleted' => false, 'visible' => true, 'moderated' => false];
1706 $params = ['order' => ['created' => false]];
1707 $thread = dba::selectFirst('thread', ['created'], $condition, $params);
1708 if (DBM::is_result($thread)) {
1709 return substr(DateTimeFormat::local($thread['created']), 0, 10);
1715 * @brief add/remove activity to an item
1717 * Toggle activities as like,dislike,attend of an item
1719 * @param string $item_id
1720 * @param string $verb
1721 * Activity verb. One of
1722 * like, unlike, dislike, undislike, attendyes, unattendyes,
1723 * attendno, unattendno, attendmaybe, unattendmaybe
1724 * @hook 'post_local_end'
1726 * 'post_id' => ID of posted item
1728 public static function performLike($item_id, $verb)
1730 if (!local_user() && !remote_user()) {
1737 $bodyverb = L10n::t('%1$s likes %2$s\'s %3$s');
1738 $activity = ACTIVITY_LIKE;
1742 $bodyverb = L10n::t('%1$s doesn\'t like %2$s\'s %3$s');
1743 $activity = ACTIVITY_DISLIKE;
1747 $bodyverb = L10n::t('%1$s is attending %2$s\'s %3$s');
1748 $activity = ACTIVITY_ATTEND;
1752 $bodyverb = L10n::t('%1$s is not attending %2$s\'s %3$s');
1753 $activity = ACTIVITY_ATTENDNO;
1756 case 'unattendmaybe':
1757 $bodyverb = L10n::t('%1$s may attend %2$s\'s %3$s');
1758 $activity = ACTIVITY_ATTENDMAYBE;
1761 logger('like: unknown verb ' . $verb . ' for item ' . $item_id);
1765 // Enable activity toggling instead of on/off
1766 $event_verb_flag = $activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE;
1768 logger('like: verb ' . $verb . ' item ' . $item_id);
1770 $item = dba::selectFirst('item', [], ['`id` = ? OR `uri` = ?', $item_id, $item_id]);
1771 if (!DBM::is_result($item)) {
1772 logger('like: unknown item ' . $item_id);
1776 $uid = $item['uid'];
1777 if (($uid == 0) && local_user()) {
1778 $uid = local_user();
1781 if (!can_write_wall($uid)) {
1782 logger('like: unable to write on wall ' . $uid);
1786 // Retrieves the local post owner
1787 $owner_self_contact = dba::selectFirst('contact', [], ['uid' => $uid, 'self' => true]);
1788 if (!DBM::is_result($owner_self_contact)) {
1789 logger('like: unknown owner ' . $uid);
1793 // Retrieve the current logged in user's public contact
1794 $author_id = public_contact();
1796 $author_contact = dba::selectFirst('contact', [], ['id' => $author_id]);
1797 if (!DBM::is_result($author_contact)) {
1798 logger('like: unknown author ' . $author_id);
1802 // Contact-id is the uid-dependant author contact
1803 if (local_user() == $uid) {
1804 $item_contact_id = $owner_self_contact['id'];
1805 $item_contact = $owner_self_contact;
1807 $item_contact_id = Contact::getIdForURL($author_contact['url'], $uid, true);
1808 $item_contact = dba::selectFirst('contact', [], ['id' => $item_contact_id]);
1809 if (!DBM::is_result($item_contact)) {
1810 logger('like: unknown item contact ' . $item_contact_id);
1815 // Look for an existing verb row
1816 // event participation are essentially radio toggles. If you make a subsequent choice,
1817 // we need to eradicate your first choice.
1818 if ($event_verb_flag) {
1819 $verbs = "'" . dbesc(ACTIVITY_ATTEND) . "', '" . dbesc(ACTIVITY_ATTENDNO) . "', '" . dbesc(ACTIVITY_ATTENDMAYBE) . "'";
1821 $verbs = "'".dbesc($activity)."'";
1824 /// @todo This query is expected to be a performance eater due to the "OR" - it has to be changed totally
1825 $existing_like = q("SELECT `id`, `guid`, `verb` FROM `item`
1826 WHERE `verb` IN ($verbs)
1828 AND `author-id` = %d
1830 AND (`parent` = '%s' OR `parent-uri` = '%s' OR `thr-parent` = '%s')
1832 intval($author_contact['id']),
1833 intval($item['uid']),
1834 dbesc($item_id), dbesc($item_id), dbesc($item['uri'])
1837 // If it exists, mark it as deleted
1838 if (DBM::is_result($existing_like)) {
1839 $like_item = $existing_like[0];
1841 // Already voted, undo it
1842 $fields = ['deleted' => true, 'unseen' => true, 'changed' => DateTimeFormat::utcNow()];
1843 dba::update('item', $fields, ['id' => $like_item['id']]);
1845 // Clean up the Diaspora signatures for this like
1846 // Go ahead and do it even if Diaspora support is disabled. We still want to clean up
1847 // if it had been enabled in the past
1848 dba::delete('sign', ['iid' => $like_item['id']]);
1850 $like_item_id = $like_item['id'];
1851 Worker::add(PRIORITY_HIGH, "Notifier", "like", $like_item_id);
1853 if (!$event_verb_flag || $like_item['verb'] == $activity) {
1858 // Verb is "un-something", just trying to delete existing entries
1859 if (strpos($verb, 'un') === 0) {
1863 // Else or if event verb different from existing row, create a new item row
1864 $post_type = (($item['resource-id']) ? L10n::t('photo') : L10n::t('status'));
1865 if ($item['object-type'] === ACTIVITY_OBJ_EVENT) {
1866 $post_type = L10n::t('event');
1868 $objtype = $item['resource-id'] ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE ;
1869 $link = xmlify('<link rel="alternate" type="text/html" href="' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . '" />' . "\n") ;
1870 $body = $item['body'];
1875 <type>$objtype</type>
1877 <id>{$item['uri']}</id>
1880 <content>$body</content>
1884 $ulink = '[url=' . $author_contact['url'] . ']' . $author_contact['name'] . '[/url]';
1885 $alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
1886 $plink = '[url=' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
1889 'guid' => get_guid(32),
1890 'uri' => item_new_uri(self::getApp()->get_hostname(), $item['uid']),
1891 'uid' => $item['uid'],
1892 'contact-id' => $item_contact_id,
1893 'type' => 'activity',
1894 'wall' => $item['wall'],
1896 'gravity' => GRAVITY_LIKE,
1897 'parent' => $item['id'],
1898 'parent-uri' => $item['uri'],
1899 'thr-parent' => $item['uri'],
1900 'owner-id' => $item['owner-id'],
1901 'owner-name' => $item['owner-name'],
1902 'owner-link' => $item['owner-link'],
1903 'owner-avatar' => $item['owner-avatar'],
1904 'author-id' => $author_contact['id'],
1905 'author-name' => $author_contact['name'],
1906 'author-link' => $author_contact['url'],
1907 'author-avatar' => $author_contact['thumb'],
1908 'body' => sprintf($bodyverb, $ulink, $alink, $plink),
1909 'verb' => $activity,
1910 'object-type' => $objtype,
1912 'allow_cid' => $item['allow_cid'],
1913 'allow_gid' => $item['allow_gid'],
1914 'deny_cid' => $item['deny_cid'],
1915 'deny_gid' => $item['deny_gid'],
1920 $new_item_id = self::insert($new_item);
1922 // If the parent item isn't visible then set it to visible
1923 if (!$item['visible']) {
1924 self::update(['visible' => true], ['id' => $item['id']]);
1927 // Save the author information for the like in case we need to relay to Diaspora
1928 Diaspora::storeLikeSignature($item_contact, $new_item_id);
1930 $new_item['id'] = $new_item_id;
1932 Addon::callHooks('post_local_end', $new_item);
1934 Worker::add(PRIORITY_HIGH, "Notifier", "like", $new_item_id);
1939 private static function addThread($itemid, $onlyshadow = false)
1941 $fields = ['uid', 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private', 'pubmail',
1942 'moderated', 'visible', 'spam', 'starred', 'bookmark', 'contact-id',
1943 'deleted', 'origin', 'forum_mode', 'mention', 'network', 'author-id', 'owner-id'];
1944 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
1945 $item = dba::selectFirst('item', $fields, $condition);
1947 if (!DBM::is_result($item)) {
1951 $item['iid'] = $itemid;
1954 $result = dba::insert('thread', $item);
1956 logger("Add thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
1960 private static function updateThread($itemid, $setmention = false)
1962 $fields = ['uid', 'guid', 'title', 'body', 'created', 'edited', 'commented', 'received', 'changed',
1963 'wall', 'private', 'pubmail', 'moderated', 'visible', 'spam', 'starred', 'bookmark', 'contact-id',
1964 'deleted', 'origin', 'forum_mode', 'network', 'rendered-html', 'rendered-hash'];
1965 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
1967 $item = dba::selectFirst('item', $fields, $condition);
1968 if (!DBM::is_result($item)) {
1973 $item["mention"] = 1;
1980 foreach ($item as $field => $data) {
1981 if (!in_array($field, ["guid", "title", "body", "rendered-html", "rendered-hash"])) {
1982 $fields[$field] = $data;
1986 $result = dba::update('thread', $fields, ['iid' => $itemid]);
1988 logger("Update thread for item ".$itemid." - guid ".$item["guid"]." - ".(int)$result." ".print_r($item, true), LOGGER_DEBUG);
1990 // Updating a shadow item entry
1991 $items = dba::selectFirst('item', ['id'], ['guid' => $item['guid'], 'uid' => 0]);
1993 if (!DBM::is_result($items)) {
1997 $fields = ['title' => $item['title'], 'body' => $item['body'],
1998 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
1999 $result = dba::update('item', $fields, ['id' => $items['id']]);
2001 logger("Updating public shadow for post ".$items["id"]." - guid ".$item["guid"]." Result: ".print_r($result, true), LOGGER_DEBUG);
2004 private static function deleteThread($itemid, $itemuri = "")
2006 $item = dba::selectFirst('thread', ['uid'], ['iid' => $itemid]);
2007 if (!DBM::is_result($item)) {
2008 logger('No thread found for id '.$itemid, LOGGER_DEBUG);
2012 // Using dba::delete at this time could delete the associated item entries
2013 $result = dba::e("DELETE FROM `thread` WHERE `iid` = ?", $itemid);
2015 logger("deleteThread: Deleted thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
2017 if ($itemuri != "") {
2018 $condition = ["`uri` = ? AND NOT `deleted` AND NOT (`uid` IN (?, 0))", $itemuri, $item["uid"]];
2019 if (!dba::exists('item', $condition)) {
2020 dba::delete('item', ['uri' => $itemuri, 'uid' => 0]);
2021 logger("deleteThread: Deleted shadow for item ".$itemuri, LOGGER_DEBUG);