4 * @file src/Model/Item.php
7 namespace Friendica\Model;
9 use Friendica\BaseObject;
10 use Friendica\Core\Addon;
11 use Friendica\Core\Config;
12 use Friendica\Core\L10n;
13 use Friendica\Core\PConfig;
14 use Friendica\Core\System;
15 use Friendica\Core\Worker;
16 use Friendica\Database\DBM;
17 use Friendica\Model\Contact;
18 use Friendica\Model\Conversation;
19 use Friendica\Model\Group;
20 use Friendica\Model\Term;
21 use Friendica\Object\Image;
22 use Friendica\Protocol\Diaspora;
23 use Friendica\Protocol\OStatus;
24 use Friendica\Util\DateTimeFormat;
26 use Text_LanguageDetect;
28 require_once 'boot.php';
29 require_once 'include/items.php';
30 require_once 'include/text.php';
31 require_once 'include/event.php';
33 class Item extends BaseObject
36 * @brief Update existing item entries
38 * @param array $fields The fields that are to be changed
39 * @param array $condition The condition for finding the item entries
41 * In the future we may have to change permissions as well.
42 * Then we had to add the user id as third parameter.
44 * A return value of "0" doesn't mean an error - but that 0 rows had been changed.
46 * @return integer|boolean number of affected rows - or "false" if there was an error
48 public static function update(array $fields, array $condition)
50 if (empty($condition) || empty($fields)) {
54 $success = dba::update('item', $fields, $condition);
60 $rows = dba::affected_rows();
62 // We cannot simply expand the condition to check for origin entries
63 // The condition needn't to be a simple array but could be a complex condition.
64 $items = dba::select('item', ['id', 'origin'], $condition);
65 while ($item = dba::fetch($items)) {
66 Term::insertFromTagFieldByItemId($item['id']);
67 Term::insertFromFileFieldByItemId($item['id']);
68 self::updateThread($item['id']);
70 // We only need to notfiy others when it is an original entry from us
71 if ($item['origin']) {
72 Worker::add(PRIORITY_HIGH, "Notifier", 'edit_post', $item['id']);
80 * @brief Delete an item and notify others about it - if it was ours
82 * @param array $condition The condition for finding the item entries
83 * @param integer $priority Priority for the notification
85 public static function delete($condition, $priority = PRIORITY_HIGH)
87 $items = dba::select('item', ['id'], $condition);
88 while ($item = dba::fetch($items)) {
89 self::deleteById($item['id'], $priority);
95 * @brief Delete an item and notify others about it - if it was ours
97 * @param integer $item_id Item ID that should be delete
98 * @param integer $priority Priority for the notification
100 * @return $boolean success
102 public static function deleteById($item_id, $priority = PRIORITY_HIGH)
104 // locate item to be deleted
105 $fields = ['id', 'uid', 'parent', 'parent-uri', 'origin', 'deleted',
106 'file', 'resource-id', 'event-id', 'attach',
107 'verb', 'object-type', 'object', 'target', 'contact-id'];
108 $item = dba::selectFirst('item', $fields, ['id' => $item_id]);
109 if (!DBM::is_result($item)) {
113 if ($item['deleted']) {
117 $parent = dba::selectFirst('item', ['origin'], ['id' => $item['parent']]);
118 if (!DBM::is_result($parent)) {
119 $parent = ['origin' => false];
122 logger('delete item: ' . $item['id'], LOGGER_DEBUG);
124 // clean up categories and tags so they don't end up as orphans
127 $cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
129 foreach ($matches as $mtch) {
130 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],true);
136 $cnt = preg_match_all('/\[(.*?)\]/', $item['file'], $matches, PREG_SET_ORDER);
138 foreach ($matches as $mtch) {
139 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],false);
144 * If item is a link to a photo resource, nuke all the associated photos
145 * (visitors will not have photo resources)
146 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
147 * generate a resource-id and therefore aren't intimately linked to the item.
149 if (strlen($item['resource-id'])) {
150 dba::delete('photo', ['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
153 // If item is a link to an event, delete the event.
154 if (intval($item['event-id'])) {
155 event_delete($item['event-id']);
158 // If item has attachments, drop them
159 foreach (explode(", ", $item['attach']) as $attach) {
160 preg_match("|attach/(\d+)|", $attach, $matches);
161 dba::delete('attach', ['id' => $matches[1], 'uid' => $item['uid']]);
164 // Delete tags that had been attached to other items
165 self::deleteTagsFromItem($item);
167 // Set the item to "deleted"
168 dba::update('item', ['deleted' => true, 'title' => '', 'body' => '',
169 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()],
170 ['id' => $item['id']]);
172 Term::insertFromTagFieldByItemId($item['id']);
173 Term::insertFromFileFieldByItemId($item['id']);
174 self::deleteThread($item['id'], $item['parent-uri']);
176 // If it's the parent of a comment thread, kill all the kids
177 if ($item['id'] == $item['parent']) {
178 self::delete(['parent' => $item['parent']], $priority);
181 // send the notification upstream/downstream
182 if ($item['origin'] || $parent['origin']) {
183 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", "drop", intval($item['id']));
189 private static function deleteTagsFromItem($item)
191 if (($item["verb"] != ACTIVITY_TAG) || ($item["object-type"] != ACTIVITY_OBJ_TAGTERM)) {
195 $xo = XML::parseString($item["object"], false);
196 $xt = XML::parseString($item["target"], false);
198 if ($xt->type != ACTIVITY_OBJ_NOTE) {
202 $i = dba::selectFirst('item', ['id', 'contact-id', 'tag'], ['uri' => $xt->id, 'uid' => $item['uid']]);
203 if (!DBM::is_result($i)) {
207 // For tags, the owner cannot remove the tag on the author's copy of the post.
208 $owner_remove = ($item["contact-id"] == $i["contact-id"]);
209 $author_copy = $item["origin"];
211 if (($owner_remove && $author_copy) || !$owner_remove) {
215 $tags = explode(',', $i["tag"]);
218 foreach ($tags as $tag) {
219 if (trim($tag) !== trim($xo->body)) {
220 $newtags[] = trim($tag);
224 self::update(['tag' => implode(',', $newtags)], ['id' => $i["id"]]);
227 private static function guid($item, $notify)
229 $guid = notags(trim($item['guid']));
236 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
237 // We add the hash of our own host because our host is the original creator of the post.
238 $prefix_host = get_app()->get_hostname();
242 // We are only storing the post so we create a GUID from the original hostname.
243 if (!empty($item['author-link'])) {
244 $parsed = parse_url($item['author-link']);
245 if (!empty($parsed['host'])) {
246 $prefix_host = $parsed['host'];
250 if (empty($prefix_host) && !empty($item['plink'])) {
251 $parsed = parse_url($item['plink']);
252 if (!empty($parsed['host'])) {
253 $prefix_host = $parsed['host'];
257 if (empty($prefix_host) && !empty($item['uri'])) {
258 $parsed = parse_url($item['uri']);
259 if (!empty($parsed['host'])) {
260 $prefix_host = $parsed['host'];
264 // Is it in the format data@host.tld? - Used for mail contacts
265 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
266 $mailparts = explode('@', $item['author-link']);
267 $prefix_host = array_pop($mailparts);
271 if (!empty($item['plink'])) {
272 $guid = self::guidFromUri($item['plink'], $prefix_host);
273 } elseif (!empty($item['uri'])) {
274 $guid = self::guidFromUri($item['uri'], $prefix_host);
276 $guid = get_guid(32, hash('crc32', $prefix_host));
282 private static function contactId($item)
284 $contact_id = (int)$item["contact-id"];
286 if (!empty($contact_id)) {
289 logger('Missing contact-id. Called by: '.System::callstack(), LOGGER_DEBUG);
291 * First we are looking for a suitable contact that matches with the author of the post
292 * This is done only for comments
294 if ($item['parent-uri'] != $item['uri']) {
295 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
298 // If not present then maybe the owner was found
299 if ($contact_id == 0) {
300 $contact_id = Contact::getIdForURL($item['owner-link'], $item['uid']);
303 // Still missing? Then use the "self" contact of the current user
304 if ($contact_id == 0) {
305 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $item['uid']]);
306 if (DBM::is_result($self)) {
307 $contact_id = $self["id"];
310 logger("Contact-id was missing for post ".$item['guid']." from user id ".$item['uid']." - now set to ".$contact_id, LOGGER_DEBUG);
315 public static function insert($item, $force_parent = false, $notify = false, $dontcache = false)
319 // If it is a posting where users should get notifications, then define it as wall posting
322 $item['type'] = 'wall';
324 $item['network'] = NETWORK_DFRN;
325 $item['protocol'] = PROTOCOL_DFRN;
327 $item['network'] = trim(defaults($item, 'network', NETWORK_PHANTOM));
330 $item['guid'] = self::guid($item, $notify);
331 $item['uri'] = notags(trim(defaults($item, 'uri', item_new_uri($a->get_hostname(), $item['uid'], $item['guid']))));
333 // Store conversation data
334 $item = Conversation::insert($item);
337 * If a Diaspora signature structure was passed in, pull it out of the
338 * item array and set it aside for later storage.
342 if (x($item, 'dsprsig')) {
343 $encoded_signature = $item['dsprsig'];
344 $dsprsig = json_decode(base64_decode($item['dsprsig']));
345 unset($item['dsprsig']);
348 // Converting the plink
349 /// @TODO Check if this is really still needed
350 if ($item['network'] == NETWORK_OSTATUS) {
351 if (isset($item['plink'])) {
352 $item['plink'] = OStatus::convertHref($item['plink']);
353 } elseif (isset($item['uri'])) {
354 $item['plink'] = OStatus::convertHref($item['uri']);
358 if (x($item, 'gravity')) {
359 $item['gravity'] = intval($item['gravity']);
360 } elseif ($item['parent-uri'] === $item['uri']) {
361 $item['gravity'] = 0;
362 } elseif (activity_match($item['verb'],ACTIVITY_POST)) {
363 $item['gravity'] = 6;
365 $item['gravity'] = 6; // extensible catchall
368 $item['type'] = defaults($item, 'type', 'remote');
370 $uid = intval($item['uid']);
372 // check for create date and expire time
373 $expire_interval = Config::get('system', 'dbclean-expire-days', 0);
375 $user = dba::selectFirst('user', ['expire'], ['uid' => $uid]);
376 if (DBM::is_result($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
377 $expire_interval = $user['expire'];
380 if (($expire_interval > 0) && !empty($item['created'])) {
381 $expire_date = time() - ($expire_interval * 86400);
382 $created_date = strtotime($item['created']);
383 if ($created_date < $expire_date) {
384 logger('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($item,true), LOGGER_DEBUG);
390 * Do we already have this item?
391 * We have to check several networks since Friendica posts could be repeated
392 * via OStatus (maybe Diasporsa as well)
394 if (in_array($item['network'], [NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS, ""])) {
395 $condition = ["`uri` = ? AND `uid` = ? AND `network` IN (?, ?, ?)",
396 trim($item['uri']), $item['uid'],
397 NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS];
398 $existing = dba::selectFirst('item', ['id', 'network'], $condition);
399 if (DBM::is_result($existing)) {
400 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
402 logger("Item with uri ".$item['uri']." already existed for user ".$uid." with id ".$existing["id"]." target network ".$existing["network"]." - new network: ".$item['network']);
405 return $existing["id"];
409 self::addLanguageInPostopts($item);
411 $item['wall'] = intval(defaults($item, 'wall', 0));
412 $item['extid'] = trim(defaults($item, 'extid', ''));
413 $item['author-name'] = trim(defaults($item, 'author-name', ''));
414 $item['author-link'] = trim(defaults($item, 'author-link', ''));
415 $item['author-avatar'] = trim(defaults($item, 'author-avatar', ''));
416 $item['owner-name'] = trim(defaults($item, 'owner-name', ''));
417 $item['owner-link'] = trim(defaults($item, 'owner-link', ''));
418 $item['owner-avatar'] = trim(defaults($item, 'owner-avatar', ''));
419 $item['received'] = ((x($item, 'received') !== false) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
420 $item['created'] = ((x($item, 'created') !== false) ? DateTimeFormat::utc($item['created']) : $item['received']);
421 $item['edited'] = ((x($item, 'edited') !== false) ? DateTimeFormat::utc($item['edited']) : $item['created']);
422 $item['changed'] = ((x($item, 'changed') !== false) ? DateTimeFormat::utc($item['changed']) : $item['created']);
423 $item['commented'] = ((x($item, 'commented') !== false) ? DateTimeFormat::utc($item['commented']) : $item['created']);
424 $item['title'] = trim(defaults($item, 'title', ''));
425 $item['location'] = trim(defaults($item, 'location', ''));
426 $item['coord'] = trim(defaults($item, 'coord', ''));
427 $item['visible'] = ((x($item, 'visible') !== false) ? intval($item['visible']) : 1);
428 $item['deleted'] = 0;
429 $item['parent-uri'] = trim(defaults($item, 'parent-uri', $item['uri']));
430 $item['verb'] = trim(defaults($item, 'verb', ''));
431 $item['object-type'] = trim(defaults($item, 'object-type', ''));
432 $item['object'] = trim(defaults($item, 'object', ''));
433 $item['target-type'] = trim(defaults($item, 'target-type', ''));
434 $item['target'] = trim(defaults($item, 'target', ''));
435 $item['plink'] = trim(defaults($item, 'plink', ''));
436 $item['allow_cid'] = trim(defaults($item, 'allow_cid', ''));
437 $item['allow_gid'] = trim(defaults($item, 'allow_gid', ''));
438 $item['deny_cid'] = trim(defaults($item, 'deny_cid', ''));
439 $item['deny_gid'] = trim(defaults($item, 'deny_gid', ''));
440 $item['private'] = intval(defaults($item, 'private', 0));
441 $item['bookmark'] = intval(defaults($item, 'bookmark', 0));
442 $item['body'] = trim(defaults($item, 'body', ''));
443 $item['tag'] = trim(defaults($item, 'tag', ''));
444 $item['attach'] = trim(defaults($item, 'attach', ''));
445 $item['app'] = trim(defaults($item, 'app', ''));
446 $item['origin'] = intval(defaults($item, 'origin', 0));
447 $item['postopts'] = trim(defaults($item, 'postopts', ''));
448 $item['resource-id'] = trim(defaults($item, 'resource-id', ''));
449 $item['event-id'] = intval(defaults($item, 'event-id', 0));
450 $item['inform'] = trim(defaults($item, 'inform', ''));
451 $item['file'] = trim(defaults($item, 'file', ''));
453 // When there is no content then we don't post it
454 if ($item['body'].$item['title'] == '') {
458 // Items cannot be stored before they happen ...
459 if ($item['created'] > DateTimeFormat::utcNow()) {
460 $item['created'] = DateTimeFormat::utcNow();
463 // We haven't invented time travel by now.
464 if ($item['edited'] > DateTimeFormat::utcNow()) {
465 $item['edited'] = DateTimeFormat::utcNow();
468 if (($item['author-link'] == "") && ($item['owner-link'] == "")) {
469 logger("Both author-link and owner-link are empty. Called by: " . System::callstack(), LOGGER_DEBUG);
472 $item['plink'] = defaults($item, 'plink', System::baseUrl() . '/display/' . urlencode($item['guid']));
474 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
475 $item["contact-id"] = self::contactId($item);
477 $item['author-id'] = defaults($item, 'author-id', Contact::getIdForURL($item["author-link"], 0));
479 if (Contact::isBlocked($item["author-id"])) {
480 logger('Contact '.$item["author-id"].' is blocked, item '.$item["uri"].' will not be stored');
484 $item['owner-id'] = defaults($item, 'owner-id', Contact::getIdForURL($item["owner-link"], 0));
486 if (Contact::isBlocked($item["owner-id"])) {
487 logger('Contact '.$item["owner-id"].' is blocked, item '.$item["uri"].' will not be stored');
491 if ($item['network'] == NETWORK_PHANTOM) {
492 logger('Missing network. Called by: '.System::callstack(), LOGGER_DEBUG);
494 $contact = Contact::getDetailsByURL($item['author-link'], $item['uid']);
495 if (!empty($contact['network'])) {
496 $item['network'] = $contact["network"];
498 $item['network'] = NETWORK_DFRN;
500 logger("Set network to " . $item["network"] . " for " . $item["uri"], LOGGER_DEBUG);
503 // Checking if there is already an item with the same guid
504 logger('Checking for an item for user '.$item['uid'].' on network '.$item['network'].' with the guid '.$item['guid'], LOGGER_DEBUG);
505 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
506 if (dba::exists('item', $condition)) {
507 logger('found item with guid '.$item['guid'].' for user '.$item['uid'].' on network '.$item['network'], LOGGER_DEBUG);
511 // Check for hashtags in the body and repair or add hashtag links
512 self::setHashtags($item);
514 $item['thr-parent'] = $item['parent-uri'];
522 if ($item['parent-uri'] === $item['uri']) {
525 $allow_cid = $item['allow_cid'];
526 $allow_gid = $item['allow_gid'];
527 $deny_cid = $item['deny_cid'];
528 $deny_gid = $item['deny_gid'];
529 $notify_type = 'wall-new';
531 // find the parent and snarf the item id and ACLs
532 // and anything else we need to inherit
534 $fields = ['uri', 'parent-uri', 'id', 'deleted',
535 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
536 'wall', 'private', 'forum_mode'];
537 $condition = ['uri' => $item['parent-uri'], 'uid' => $item['uid']];
538 $params = ['order' => ['id' => false]];
539 $parent = dba::selectFirst('item', $fields, $condition, $params);
541 if (DBM::is_result($parent)) {
542 // is the new message multi-level threaded?
543 // even though we don't support it now, preserve the info
544 // and re-attach to the conversation parent.
546 if ($parent['uri'] != $parent['parent-uri']) {
547 $item['parent-uri'] = $parent['parent-uri'];
549 $condition = ['uri' => $item['parent-uri'],
550 'parent-uri' => $item['parent-uri'],
551 'uid' => $item['uid']];
552 $params = ['order' => ['id' => false]];
553 $toplevel_parent = dba::selectFirst('item', $fields, $condition, $params);
555 if (DBM::is_result($toplevel_parent)) {
556 $parent = $toplevel_parent;
560 $parent_id = $parent['id'];
561 $parent_deleted = $parent['deleted'];
562 $allow_cid = $parent['allow_cid'];
563 $allow_gid = $parent['allow_gid'];
564 $deny_cid = $parent['deny_cid'];
565 $deny_gid = $parent['deny_gid'];
566 $item['wall'] = $parent['wall'];
567 $notify_type = 'comment-new';
570 * If the parent is private, force privacy for the entire conversation
571 * This differs from the above settings as it subtly allows comments from
572 * email correspondents to be private even if the overall thread is not.
574 if ($parent['private']) {
575 $item['private'] = $parent['private'];
579 * Edge case. We host a public forum that was originally posted to privately.
580 * The original author commented, but as this is a comment, the permissions
581 * weren't fixed up so it will still show the comment as private unless we fix it here.
583 if ((intval($parent['forum_mode']) == 1) && $parent['private']) {
584 $item['private'] = 0;
587 // If its a post from myself then tag the thread as "mention"
588 logger("Checking if parent ".$parent_id." has to be tagged as mention for user ".$item['uid'], LOGGER_DEBUG);
589 $user = dba::selectFirst('user', ['nickname'], ['uid' => $item['uid']]);
590 if (DBM::is_result($user)) {
591 $self = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
592 logger("'myself' is ".$self." for parent ".$parent_id." checking against ".$item['author-link']." and ".$item['owner-link'], LOGGER_DEBUG);
593 if ((normalise_link($item['author-link']) == $self) || (normalise_link($item['owner-link']) == $self)) {
594 dba::update('thread', ['mention' => true], ['iid' => $parent_id]);
595 logger("tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
600 * Allow one to see reply tweets from status.net even when
601 * we don't have or can't see the original post.
604 logger('$force_parent=true, reply converted to top-level post.');
606 $item['parent-uri'] = $item['uri'];
607 $item['gravity'] = 0;
609 logger('item parent '.$item['parent-uri'].' for '.$item['uid'].' was not found - ignoring item');
617 $condition = ["`uri` = ? AND `network` IN (?, ?) AND `uid` = ?",
618 $item['uri'], $item['network'], NETWORK_DFRN, $item['uid']];
619 if (dba::exists('item', $condition)) {
620 logger('duplicated item with the same uri found. '.print_r($item,true));
624 // On Friendica and Diaspora the GUID is unique
625 if (in_array($item['network'], [NETWORK_DFRN, NETWORK_DIASPORA])) {
626 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
627 if (dba::exists('item', $condition)) {
628 logger('duplicated item with the same guid found. '.print_r($item,true));
632 // Check for an existing post with the same content. There seems to be a problem with OStatus.
633 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
634 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
635 if (dba::exists('item', $condition)) {
636 logger('duplicated item with the same body found. '.print_r($item,true));
641 // Is this item available in the global items (with uid=0)?
642 if ($item["uid"] == 0) {
643 $item["global"] = true;
645 // Set the global flag on all items if this was a global item entry
646 dba::update('item', ['global' => true], ['uri' => $item["uri"]]);
648 $item["global"] = dba::exists('item', ['uid' => 0, 'uri' => $item["uri"]]);
652 if (strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid)) {
655 $private = $item['private'];
658 $item["allow_cid"] = $allow_cid;
659 $item["allow_gid"] = $allow_gid;
660 $item["deny_cid"] = $deny_cid;
661 $item["deny_gid"] = $deny_gid;
662 $item["private"] = $private;
663 $item["deleted"] = $parent_deleted;
665 // Fill the cache field
666 put_item_in_cache($item);
669 Addon::callHooks('post_local', $item);
671 Addon::callHooks('post_remote', $item);
674 // This array field is used to trigger some automatic reactions
675 // It is mainly used in the "post_local" hook.
676 unset($item['api_source']);
678 if (x($item, 'cancel')) {
679 logger('post cancelled by addon.');
684 * Check for already added items.
685 * There is a timing issue here that sometimes creates double postings.
686 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
688 if ($item["uid"] == 0) {
689 if (dba::exists('item', ['uri' => trim($item['uri']), 'uid' => 0])) {
690 logger('Global item already stored. URI: '.$item['uri'].' on network '.$item['network'], LOGGER_DEBUG);
695 logger('' . print_r($item,true), LOGGER_DATA);
698 $ret = dba::insert('item', $item);
700 // When the item was successfully stored we fetch the ID of the item.
701 if (DBM::is_result($ret)) {
702 $current_post = dba::lastInsertId();
704 // This can happen - for example - if there are locking timeouts.
707 // Store the data into a spool file so that we can try again later.
709 // At first we restore the Diaspora signature that we removed above.
710 if (isset($encoded_signature)) {
711 $item['dsprsig'] = $encoded_signature;
714 // Now we store the data in the spool directory
715 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
716 $file = 'item-'.round(microtime(true) * 10000).'-'.mt_rand().'.msg';
718 $spoolpath = get_spoolpath();
719 if ($spoolpath != "") {
720 $spool = $spoolpath.'/'.$file;
721 file_put_contents($spool, json_encode($item));
722 logger("Item wasn't stored - Item was spooled into file ".$file, LOGGER_DEBUG);
727 if ($current_post == 0) {
728 // This is one of these error messages that never should occur.
729 logger("couldn't find created item - we better quit now.");
734 // How much entries have we created?
735 // We wouldn't need this query when we could use an unique index - but MySQL has length problems with them.
736 $entries = dba::count('item', ['uri' => $item['uri'], 'uid' => $item['uid'], 'network' => $item['network']]);
739 // There are duplicates. We delete our just created entry.
740 logger('Duplicated post occurred. uri = ' . $item['uri'] . ' uid = ' . $item['uid']);
742 // Yes, we could do a rollback here - but we are having many users with MyISAM.
743 dba::delete('item', ['id' => $current_post]);
746 } elseif ($entries == 0) {
747 // This really should never happen since we quit earlier if there were problems.
748 logger("Something is terribly wrong. We haven't found our created entry.");
753 logger('created item '.$current_post);
754 self::updateContact($item);
756 if (!$parent_id || ($item['parent-uri'] === $item['uri'])) {
757 $parent_id = $current_post;
761 dba::update('item', ['parent' => $parent_id], ['id' => $current_post]);
763 $item['id'] = $current_post;
764 $item['parent'] = $parent_id;
766 // update the commented timestamp on the parent
767 // Only update "commented" if it is really a comment
768 if (($item['verb'] == ACTIVITY_POST) || !Config::get("system", "like_no_comment")) {
769 dba::update('item', ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
771 dba::update('item', ['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
776 * Friendica servers lower than 3.4.3-2 had double encoded the signature ...
777 * We can check for this condition when we decode and encode the stuff again.
779 if (base64_encode(base64_decode(base64_decode($dsprsig->signature))) == base64_decode($dsprsig->signature)) {
780 $dsprsig->signature = base64_decode($dsprsig->signature);
781 logger("Repaired double encoded signature from handle ".$dsprsig->signer, LOGGER_DEBUG);
784 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $dsprsig->signed_text,
785 'signature' => $dsprsig->signature, 'signer' => $dsprsig->signer]);
788 $deleted = self::tagDeliver($item['uid'], $current_post);
791 * current post can be deleted if is for a community page and no mention are
794 if (!$deleted && !$dontcache) {
795 $posted_item = dba::selectFirst('item', [], ['id' => $current_post]);
796 if (DBM::is_result($posted_item)) {
798 Addon::callHooks('post_local_end', $posted_item);
800 Addon::callHooks('post_remote_end', $posted_item);
803 logger('new item not found in DB, id ' . $current_post);
807 if ($item['parent-uri'] === $item['uri']) {
808 self::addThread($current_post);
810 self::updateThread($parent_id);
816 * Due to deadlock issues with the "term" table we are doing these steps after the commit.
817 * This is not perfect - but a workable solution until we found the reason for the problem.
819 Term::insertFromTagFieldByItemId($current_post);
820 Term::insertFromFileFieldByItemId($current_post);
822 if ($item['parent-uri'] === $item['uri']) {
823 self::addShadow($current_post);
825 self::addShadowPost($current_post);
828 check_user_notification($current_post);
831 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "Notifier", $notify_type, $current_post);
834 return $current_post;
838 * @brief Add a shadow entry for a given item id that is a thread starter
840 * We store every public item entry additionally with the user id "0".
841 * This is used for the community page and for the search.
842 * It is planned that in the future we will store public item entries only once.
844 * @param integer $itemid Item ID that should be added
846 public static function addShadow($itemid)
848 $fields = ['uid', 'wall', 'private', 'moderated', 'visible', 'contact-id', 'deleted', 'network', 'author-id', 'owner-id'];
849 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
850 $item = dba::selectFirst('item', $fields, $condition);
852 if (!DBM::is_result($item)) {
856 // is it already a copy?
857 if (($itemid == 0) || ($item['uid'] == 0)) {
861 // Is it a visible public post?
862 if (!$item["visible"] || $item["deleted"] || $item["moderated"] || $item["private"]) {
866 // is it an entry from a connector? Only add an entry for natively connected networks
867 if (!in_array($item["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
871 // Only do these checks if the post isn't a wall post
872 if (!$item["wall"]) {
873 // Check, if hide-friends is activated - then don't do a shadow entry
874 if (dba::exists('profile', ['is-default' => true, 'uid' => $item['uid'], 'hide-friends' => true])) {
878 // Check if the contact is hidden or blocked
879 if (!dba::exists('contact', ['hidden' => false, 'blocked' => false, 'id' => $item['contact-id']])) {
884 // Only add a shadow, if the profile isn't hidden
885 if (dba::exists('user', ['uid' => $item['uid'], 'hidewall' => true])) {
889 $item = dba::selectFirst('item', [], ['id' => $itemid]);
891 if (DBM::is_result($item) && ($item["allow_cid"] == '') && ($item["allow_gid"] == '') &&
892 ($item["deny_cid"] == '') && ($item["deny_gid"] == '')) {
894 if (!dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
895 // Preparing public shadow (removing user specific data)
900 $item['contact-id'] = Contact::getIdForURL($item['author-link'], 0);
902 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
903 $item['type'] = 'remote-comment';
904 } elseif ($item['type'] == 'wall') {
905 $item['type'] = 'remote';
908 $public_shadow = self::insert($item, false, false, true);
910 logger("Stored public shadow for thread ".$itemid." under id ".$public_shadow, LOGGER_DEBUG);
916 * @brief Add a shadow entry for a given item id that is a comment
918 * This function does the same like the function above - but for comments
920 * @param integer $itemid Item ID that should be added
922 public static function addShadowPost($itemid)
924 $item = dba::selectFirst('item', [], ['id' => $itemid]);
925 if (!DBM::is_result($item)) {
929 // Is it a toplevel post?
930 if ($item['id'] == $item['parent']) {
931 self::addShadow($itemid);
935 // Is this a shadow entry?
936 if ($item['uid'] == 0)
939 // Is there a shadow parent?
940 if (!dba::exists('item', ['uri' => $item['parent-uri'], 'uid' => 0])) {
944 // Is there already a shadow entry?
945 if (dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
949 // Preparing public shadow (removing user specific data)
954 $item['contact-id'] = Contact::getIdForURL($item['author-link'], 0);
956 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
957 $item['type'] = 'remote-comment';
958 } elseif ($item['type'] == 'wall') {
959 $item['type'] = 'remote';
962 $public_shadow = self::insert($item, false, false, true);
964 logger("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, LOGGER_DEBUG);
968 * Adds a "lang" specification in a "postopts" element of given $arr,
969 * if possible and not already present.
970 * Expects "body" element to exist in $arr.
972 private static function addLanguageInPostopts(&$arr)
974 if (x($arr, 'postopts')) {
975 if (strstr($arr['postopts'], 'lang=')) {
979 $postopts = $arr['postopts'];
984 $naked_body = preg_replace('/\[(.+?)\]/','', $arr['body']);
985 $l = new Text_LanguageDetect();
986 $lng = $l->detect($naked_body, 3);
988 if (sizeof($lng) > 0) {
989 if ($postopts != "") {
990 $postopts .= '&'; // arbitrary separator, to be reviewed
993 $postopts .= 'lang=';
996 foreach ($lng as $language => $score) {
997 $postopts .= $sep . $language . ";" . $score;
1000 $arr['postopts'] = $postopts;
1005 * @brief Creates an unique guid out of a given uri
1007 * @param string $uri uri of an item entry
1008 * @param string $host hostname for the GUID prefix
1009 * @return string unique guid
1011 public static function guidFromUri($uri, $host)
1013 // Our regular guid routine is using this kind of prefix as well
1014 // We have to avoid that different routines could accidentally create the same value
1015 $parsed = parse_url($uri);
1017 // We use a hash of the hostname as prefix for the guid
1018 $guid_prefix = hash("crc32", $host);
1020 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1021 unset($parsed["scheme"]);
1023 // Glue it together to be able to make a hash from it
1024 $host_id = implode("/", $parsed);
1026 // We could use any hash algorithm since it isn't a security issue
1027 $host_hash = hash("ripemd128", $host_id);
1029 return $guid_prefix.$host_hash;
1033 * @brief Set "success_update" and "last-item" to the date of the last time we heard from this contact
1035 * This can be used to filter for inactive contacts.
1036 * Only do this for public postings to avoid privacy problems, since poco data is public.
1037 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1039 * @param array $arr Contains the just posted item record
1041 private static function updateContact($arr)
1043 // Unarchive the author
1044 $contact = dba::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1045 if (DBM::is_result($contact)) {
1046 Contact::unmarkForArchival($contact);
1049 // Unarchive the contact if it's not our own contact
1050 $contact = dba::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
1051 if (DBM::is_result($contact)) {
1052 Contact::unmarkForArchival($contact);
1055 $update = (!$arr['private'] && (($arr["author-link"] === $arr["owner-link"]) || ($arr["parent-uri"] === $arr["uri"])));
1057 // Is it a forum? Then we don't care about the rules from above
1058 if (!$update && ($arr["network"] == NETWORK_DFRN) && ($arr["parent-uri"] === $arr["uri"])) {
1059 if (dba::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
1065 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1066 ['id' => $arr['contact-id']]);
1068 // Now do the same for the system wide contacts with uid=0
1069 if (!$arr['private']) {
1070 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1071 ['id' => $arr['owner-id']]);
1073 if ($arr['owner-id'] != $arr['author-id']) {
1074 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1075 ['id' => $arr['author-id']]);
1080 private static function setHashtags(&$item)
1083 $tags = get_tags($item["body"]);
1086 if (!count($tags)) {
1090 // This sorting is important when there are hashtags that are part of other hashtags
1091 // Otherwise there could be problems with hashtags like #test and #test2
1094 $URLSearchString = "^\[\]";
1096 // All hashtags should point to the home server if "local_tags" is activated
1097 if (Config::get('system', 'local_tags')) {
1098 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1099 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["body"]);
1101 $item["tag"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1102 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["tag"]);
1105 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
1106 $item["body"] = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1108 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
1111 $item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
1113 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
1116 $item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
1118 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
1121 // Repair recursive urls
1122 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1123 "#$2", $item["body"]);
1125 foreach ($tags as $tag) {
1126 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=')) {
1130 $basetag = str_replace('_',' ',substr($tag,1));
1132 $newtag = '#[url=' . System::baseUrl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
1134 $item["body"] = str_replace($tag, $newtag, $item["body"]);
1136 if (!stristr($item["tag"], "/search?tag=" . $basetag . "]" . $basetag . "[/url]")) {
1137 if (strlen($item["tag"])) {
1138 $item["tag"] = ','.$item["tag"];
1140 $item["tag"] = $newtag.$item["tag"];
1144 // Convert back the masked hashtags
1145 $item["body"] = str_replace("#", "#", $item["body"]);
1148 public static function getGuidById($id)
1150 $item = dba::selectFirst('item', ['guid'], ['id' => $id]);
1151 if (DBM::is_result($item)) {
1152 return $item['guid'];
1158 public static function getIdAndNickByGuid($guid, $uid = 0)
1164 $uid == local_user();
1167 // Does the given user have this item?
1169 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1170 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1171 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1172 AND `item`.`guid` = ? AND `item`.`uid` = ?", $guid, $uid);
1173 if (DBM::is_result($item)) {
1175 $nick = $item["nickname"];
1179 // Or is it anywhere on the server?
1181 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1182 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1183 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1184 AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = ''
1185 AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = ''
1186 AND NOT `item`.`private` AND `item`.`wall`
1187 AND `item`.`guid` = ?", $guid);
1188 if (DBM::is_result($item)) {
1190 $nick = $item["nickname"];
1193 return ["nick" => $nick, "id" => $id];
1197 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1199 * @param int $item_id
1200 * @return bool true if item was deleted, else false
1202 private static function tagDeliver($uid, $item_id)
1206 $user = dba::selectFirst('user', [], ['uid' => $uid]);
1207 if (!DBM::is_result($user)) {
1211 $community_page = (($user['page-flags'] == PAGE_COMMUNITY) ? true : false);
1212 $prvgroup = (($user['page-flags'] == PAGE_PRVGROUP) ? true : false);
1214 $item = dba::selectFirst('item', [], ['id' => $item_id]);
1215 if (!DBM::is_result($item)) {
1219 $link = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
1222 * Diaspora uses their own hardwired link URL in @-tags
1223 * instead of the one we supply with webfinger
1225 $dlink = normalise_link(System::baseUrl() . '/u/' . $user['nickname']);
1227 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
1229 foreach ($matches as $mtch) {
1230 if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) {
1232 logger('mention found: ' . $mtch[2]);
1238 if (($community_page || $prvgroup) &&
1239 !$item['wall'] && !$item['origin'] && ($item['id'] == $item['parent'])) {
1240 // mmh.. no mention.. community page or private group... no wall.. no origin.. top-post (not a comment)
1242 logger("no-mention top-level post to community or private group. delete.");
1243 dba::delete('item', ['id' => $item_id]);
1249 $arr = ['item' => $item, 'user' => $user];
1251 Addon::callHooks('tagged', $arr);
1253 if (!$community_page && !$prvgroup) {
1258 * tgroup delivery - setup a second delivery chain
1259 * prevent delivery looping - only proceed
1260 * if the message originated elsewhere and is a top-level post
1262 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
1266 // now change this copy of the post to a forum head message and deliver to all the tgroup members
1267 $self = dba::selectFirst('contact', ['name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
1268 if (!DBM::is_result($self)) {
1272 // also reset all the privacy bits to the forum default permissions
1274 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? 1 : 0;
1276 $forum_mode = ($prvgroup ? 2 : 1);
1278 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode,
1279 'owner-name' => $self['name'], 'owner-link' => $self['url'], 'owner-avatar' => $self['thumb'],
1280 'private' => $private, 'allow_cid' => $user['allow_cid'], 'allow_gid' => $user['allow_gid'],
1281 'deny_cid' => $user['deny_cid'], 'deny_gid' => $user['deny_gid']];
1282 dba::update('item', $fields, ['id' => $item_id]);
1284 self::updateThread($item_id);
1286 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', 'tgroup', $item_id);
1289 public static function isRemoteSelf($contact, &$datarray)
1293 if (!$contact['remote_self']) {
1297 // Prevent the forwarding of posts that are forwarded
1298 if ($datarray["extid"] == NETWORK_DFRN) {
1302 // Prevent to forward already forwarded posts
1303 if ($datarray["app"] == $a->get_hostname()) {
1307 // Only forward posts
1308 if ($datarray["verb"] != ACTIVITY_POST) {
1312 if (($contact['network'] != NETWORK_FEED) && $datarray['private']) {
1316 $datarray2 = $datarray;
1317 logger('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), LOGGER_DEBUG);
1318 if ($contact['remote_self'] == 2) {
1319 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
1320 ['uid' => $contact['uid'], 'self' => true]);
1321 if (DBM::is_result($self)) {
1322 $datarray['contact-id'] = $self["id"];
1324 $datarray['owner-name'] = $self["name"];
1325 $datarray['owner-link'] = $self["url"];
1326 $datarray['owner-avatar'] = $self["thumb"];
1328 $datarray['author-name'] = $datarray['owner-name'];
1329 $datarray['author-link'] = $datarray['owner-link'];
1330 $datarray['author-avatar'] = $datarray['owner-avatar'];
1332 unset($datarray['created']);
1333 unset($datarray['edited']);
1336 if ($contact['network'] != NETWORK_FEED) {
1337 $datarray["guid"] = get_guid(32);
1338 unset($datarray["plink"]);
1339 $datarray["uri"] = item_new_uri($a->get_hostname(), $contact['uid'], $datarray["guid"]);
1340 $datarray["parent-uri"] = $datarray["uri"];
1341 $datarray["extid"] = $contact['network'];
1342 $urlpart = parse_url($datarray2['author-link']);
1343 $datarray["app"] = $urlpart["host"];
1345 $datarray['private'] = 0;
1349 if ($contact['network'] != NETWORK_FEED) {
1350 // Store the original post
1351 $r = self::insert($datarray2, false, false);
1352 logger('remote-self post original item - Contact '.$contact['url'].' return '.$r.' Item '.print_r($datarray2, true), LOGGER_DEBUG);
1354 $datarray["app"] = "Feed";
1357 // Trigger automatic reactions for addons
1358 $datarray['api_source'] = true;
1360 // We have to tell the hooks who we are - this really should be improved
1361 $_SESSION["authenticated"] = true;
1362 $_SESSION["uid"] = $contact['uid'];
1371 * @param array $item
1375 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
1377 if (Config::get('system', 'disable_embedded')) {
1381 logger('check for photos', LOGGER_DEBUG);
1382 $site = substr(System::baseUrl(), strpos(System::baseUrl(), '://'));
1387 $img_start = strpos($orig_body, '[img');
1388 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
1389 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
1391 while (($img_st_close !== false) && ($img_len !== false)) {
1392 $img_st_close++; // make it point to AFTER the closing bracket
1393 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
1395 logger('found photo ' . $image, LOGGER_DEBUG);
1397 if (stristr($image, $site . '/photo/')) {
1398 // Only embed locally hosted photos
1400 $i = basename($image);
1401 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
1402 $x = strpos($i, '-');
1405 $res = substr($i, $x + 1);
1406 $i = substr($i, 0, $x);
1407 $fields = ['data', 'type', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
1408 $photo = dba::selectFirst('photo', $fields, ['resource-id' => $i, 'scale' => $res, 'uid' => $uid]);
1409 if (DBM::is_result($photo)) {
1411 * Check to see if we should replace this photo link with an embedded image
1412 * 1. No need to do so if the photo is public
1413 * 2. If there's a contact-id provided, see if they're in the access list
1414 * for the photo. If so, embed it.
1415 * 3. Otherwise, if we have an item, see if the item permissions match the photo
1416 * permissions, regardless of order but first check to see if they're an exact
1417 * match to save some processing overhead.
1419 if (self::hasPermissions($photo)) {
1421 $recips = self::enumeratePermissions($photo);
1422 if (in_array($cid, $recips)) {
1426 if (self::samePermissions($item, $photo)) {
1432 $data = $photo['data'];
1433 $type = $photo['type'];
1435 // If a custom width and height were specified, apply before embedding
1436 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
1437 logger('scaling photo', LOGGER_DEBUG);
1439 $width = intval($match[1]);
1440 $height = intval($match[2]);
1442 $Image = new Image($data, $type);
1443 if ($Image->isValid()) {
1444 $Image->scaleDown(max($width, $height));
1445 $data = $Image->asString();
1446 $type = $Image->getType();
1450 logger('replacing photo', LOGGER_DEBUG);
1451 $image = 'data:' . $type . ';base64,' . base64_encode($data);
1452 logger('replaced: ' . $image, LOGGER_DATA);
1458 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
1459 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
1460 if ($orig_body === false) {
1464 $img_start = strpos($orig_body, '[img');
1465 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
1466 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
1469 $new_body = $new_body . $orig_body;
1474 private static function hasPermissions($obj)
1478 x($obj, 'allow_cid')
1480 x($obj, 'allow_gid')
1489 private static function samePermissions($obj1, $obj2)
1491 // first part is easy. Check that these are exactly the same.
1492 if (($obj1['allow_cid'] == $obj2['allow_cid'])
1493 && ($obj1['allow_gid'] == $obj2['allow_gid'])
1494 && ($obj1['deny_cid'] == $obj2['deny_cid'])
1495 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
1499 // This is harder. Parse all the permissions and compare the resulting set.
1500 $recipients1 = self::enumeratePermissions($obj1);
1501 $recipients2 = self::enumeratePermissions($obj2);
1505 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
1506 return ($recipients1 == $recipients2);
1509 // returns an array of contact-ids that are allowed to see this object
1510 private static function enumeratePermissions($obj)
1512 $allow_people = expand_acl($obj['allow_cid']);
1513 $allow_groups = Group::expand(expand_acl($obj['allow_gid']));
1514 $deny_people = expand_acl($obj['deny_cid']);
1515 $deny_groups = Group::expand(expand_acl($obj['deny_gid']));
1516 $recipients = array_unique(array_merge($allow_people, $allow_groups));
1517 $deny = array_unique(array_merge($deny_people, $deny_groups));
1518 $recipients = array_diff($recipients, $deny);
1522 public static function getFeedTags($item)
1526 $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
1528 for ($x = 0; $x < $cnt; $x ++) {
1529 if ($matches[1][$x]) {
1530 $ret[$matches[2][$x]] = ['#', $matches[1][$x], $matches[2][$x]];
1535 $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
1537 for ($x = 0; $x < $cnt; $x ++) {
1538 if ($matches[1][$x]) {
1539 $ret[] = ['@', $matches[1][$x], $matches[2][$x]];
1546 public static function expire($uid, $days, $network = "", $force = false)
1548 if (!$uid || ($days < 1)) {
1553 * $expire_network_only = save your own wall posts
1554 * and just expire conversations started by others
1556 $expire_network_only = PConfig::get($uid,'expire', 'network_only');
1557 $sql_extra = (intval($expire_network_only) ? " AND wall = 0 " : "");
1559 if ($network != "") {
1560 $sql_extra .= sprintf(" AND network = '%s' ", dbesc($network));
1563 * There is an index "uid_network_received" but not "uid_network_created"
1564 * This avoids the creation of another index just for one purpose.
1565 * And it doesn't really matter wether to look at "received" or "created"
1567 $range = "AND `received` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
1569 $range = "AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
1572 $r = q("SELECT `file`, `resource-id`, `starred`, `type`, `id` FROM `item`
1573 WHERE `uid` = %d $range
1581 if (!DBM::is_result($r)) {
1585 $expire_items = PConfig::get($uid, 'expire', 'items', 1);
1587 // Forcing expiring of items - but not notes and marked items
1589 $expire_items = true;
1592 $expire_notes = PConfig::get($uid, 'expire', 'notes', 1);
1593 $expire_starred = PConfig::get($uid, 'expire', 'starred', 1);
1594 $expire_photos = PConfig::get($uid, 'expire', 'photos', 0);
1596 logger('User '.$uid.': expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
1598 foreach ($r as $item) {
1600 // don't expire filed items
1602 if (strpos($item['file'],'[') !== false) {
1606 // Only expire posts, not photos and photo comments
1608 if ($expire_photos == 0 && strlen($item['resource-id'])) {
1610 } elseif ($expire_starred == 0 && intval($item['starred'])) {
1612 } elseif ($expire_notes == 0 && $item['type'] == 'note') {
1614 } elseif ($expire_items == 0 && $item['type'] != 'note') {
1618 self::deleteById($item['id'], PRIORITY_LOW);
1622 public static function firstPostDate($uid, $wall = false)
1624 $condition = ['uid' => $uid, 'wall' => $wall, 'deleted' => false, 'visible' => true, 'moderated' => false];
1625 $params = ['order' => ['created' => false]];
1626 $thread = dba::selectFirst('thread', ['created'], $condition, $params);
1627 if (DBM::is_result($thread)) {
1628 return substr(DateTimeFormat::local($thread['created']), 0, 10);
1634 * @brief add/remove activity to an item
1636 * Toggle activities as like,dislike,attend of an item
1638 * @param string $item_id
1639 * @param string $verb
1640 * Activity verb. One of
1641 * like, unlike, dislike, undislike, attendyes, unattendyes,
1642 * attendno, unattendno, attendmaybe, unattendmaybe
1643 * @hook 'post_local_end'
1645 * 'post_id' => ID of posted item
1647 public static function performLike($item_id, $verb)
1649 if (!local_user() && !remote_user()) {
1656 $bodyverb = L10n::t('%1$s likes %2$s\'s %3$s');
1657 $activity = ACTIVITY_LIKE;
1661 $bodyverb = L10n::t('%1$s doesn\'t like %2$s\'s %3$s');
1662 $activity = ACTIVITY_DISLIKE;
1666 $bodyverb = L10n::t('%1$s is attending %2$s\'s %3$s');
1667 $activity = ACTIVITY_ATTEND;
1671 $bodyverb = L10n::t('%1$s is not attending %2$s\'s %3$s');
1672 $activity = ACTIVITY_ATTENDNO;
1675 case 'unattendmaybe':
1676 $bodyverb = L10n::t('%1$s may attend %2$s\'s %3$s');
1677 $activity = ACTIVITY_ATTENDMAYBE;
1680 logger('like: unknown verb ' . $verb . ' for item ' . $item_id);
1684 // Enable activity toggling instead of on/off
1685 $event_verb_flag = $activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE;
1687 logger('like: verb ' . $verb . ' item ' . $item_id);
1689 $item = dba::selectFirst('item', [], ['`id` = ? OR `uri` = ?', $item_id, $item_id]);
1690 if (!DBM::is_result($item)) {
1691 logger('like: unknown item ' . $item_id);
1695 $uid = $item['uid'];
1696 if (($uid == 0) && local_user()) {
1697 $uid = local_user();
1700 if (!can_write_wall($uid)) {
1701 logger('like: unable to write on wall ' . $uid);
1705 // Retrieves the local post owner
1706 $owner_self_contact = dba::selectFirst('contact', [], ['uid' => $uid, 'self' => true]);
1707 if (!DBM::is_result($owner_self_contact)) {
1708 logger('like: unknown owner ' . $uid);
1712 // Retrieve the current logged in user's public contact
1713 $author_id = public_contact();
1715 $author_contact = dba::selectFirst('contact', [], ['id' => $author_id]);
1716 if (!DBM::is_result($author_contact)) {
1717 logger('like: unknown author ' . $author_id);
1721 // Contact-id is the uid-dependant author contact
1722 if (local_user() == $uid) {
1723 $item_contact_id = $owner_self_contact['id'];
1724 $item_contact = $owner_self_contact;
1726 $item_contact_id = Contact::getIdForURL($author_contact['url'], $uid);
1727 $item_contact = dba::selectFirst('contact', [], ['id' => $item_contact_id]);
1728 if (!DBM::is_result($item_contact)) {
1729 logger('like: unknown item contact ' . $item_contact_id);
1734 // Look for an existing verb row
1735 // event participation are essentially radio toggles. If you make a subsequent choice,
1736 // we need to eradicate your first choice.
1737 if ($event_verb_flag) {
1738 $verbs = "'" . dbesc(ACTIVITY_ATTEND) . "', '" . dbesc(ACTIVITY_ATTENDNO) . "', '" . dbesc(ACTIVITY_ATTENDMAYBE) . "'";
1740 $verbs = "'".dbesc($activity)."'";
1743 /// @todo This query is expected to be a performance eater due to the "OR" - it has to be changed totally
1744 $existing_like = q("SELECT `id`, `guid`, `verb` FROM `item`
1745 WHERE `verb` IN ($verbs)
1747 AND `author-id` = %d
1749 AND (`parent` = '%s' OR `parent-uri` = '%s' OR `thr-parent` = '%s')
1751 intval($author_contact['id']),
1752 intval($item['uid']),
1753 dbesc($item_id), dbesc($item_id), dbesc($item['uri'])
1756 // If it exists, mark it as deleted
1757 if (DBM::is_result($existing_like)) {
1758 $like_item = $existing_like[0];
1760 // Already voted, undo it
1761 $fields = ['deleted' => true, 'unseen' => true, 'changed' => DateTimeFormat::utcNow()];
1762 dba::update('item', $fields, ['id' => $like_item['id']]);
1764 // Clean up the Diaspora signatures for this like
1765 // Go ahead and do it even if Diaspora support is disabled. We still want to clean up
1766 // if it had been enabled in the past
1767 dba::delete('sign', ['iid' => $like_item['id']]);
1769 $like_item_id = $like_item['id'];
1770 Worker::add(PRIORITY_HIGH, "Notifier", "like", $like_item_id);
1772 if (!$event_verb_flag || $like_item['verb'] == $activity) {
1777 // Verb is "un-something", just trying to delete existing entries
1778 if (strpos($verb, 'un') === 0) {
1782 // Else or if event verb different from existing row, create a new item row
1783 $post_type = (($item['resource-id']) ? L10n::t('photo') : L10n::t('status'));
1784 if ($item['object-type'] === ACTIVITY_OBJ_EVENT) {
1785 $post_type = L10n::t('event');
1787 $objtype = $item['resource-id'] ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE ;
1788 $link = xmlify('<link rel="alternate" type="text/html" href="' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . '" />' . "\n") ;
1789 $body = $item['body'];
1794 <type>$objtype</type>
1796 <id>{$item['uri']}</id>
1799 <content>$body</content>
1803 $ulink = '[url=' . $author_contact['url'] . ']' . $author_contact['name'] . '[/url]';
1804 $alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
1805 $plink = '[url=' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
1808 'guid' => get_guid(32),
1809 'uri' => item_new_uri(self::getApp()->get_hostname(), $item['uid']),
1810 'uid' => $item['uid'],
1811 'contact-id' => $item_contact_id,
1812 'type' => 'activity',
1813 'wall' => $item['wall'],
1815 'gravity' => GRAVITY_LIKE,
1816 'parent' => $item['id'],
1817 'parent-uri' => $item['uri'],
1818 'thr-parent' => $item['uri'],
1819 'owner-id' => $item['owner-id'],
1820 'owner-name' => $item['owner-name'],
1821 'owner-link' => $item['owner-link'],
1822 'owner-avatar' => $item['owner-avatar'],
1823 'author-id' => $author_contact['id'],
1824 'author-name' => $author_contact['name'],
1825 'author-link' => $author_contact['url'],
1826 'author-avatar' => $author_contact['thumb'],
1827 'body' => sprintf($bodyverb, $ulink, $alink, $plink),
1828 'verb' => $activity,
1829 'object-type' => $objtype,
1831 'allow_cid' => $item['allow_cid'],
1832 'allow_gid' => $item['allow_gid'],
1833 'deny_cid' => $item['deny_cid'],
1834 'deny_gid' => $item['deny_gid'],
1839 $new_item_id = self::insert($new_item);
1841 // If the parent item isn't visible then set it to visible
1842 if (!$item['visible']) {
1843 self::update(['visible' => true], ['id' => $item['id']]);
1846 // Save the author information for the like in case we need to relay to Diaspora
1847 Diaspora::storeLikeSignature($item_contact, $new_item_id);
1849 $new_item['id'] = $new_item_id;
1851 Addon::callHooks('post_local_end', $new_item);
1853 Worker::add(PRIORITY_HIGH, "Notifier", "like", $new_item_id);
1858 private static function addThread($itemid, $onlyshadow = false)
1860 $fields = ['uid', 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private', 'pubmail',
1861 'moderated', 'visible', 'spam', 'starred', 'bookmark', 'contact-id',
1862 'deleted', 'origin', 'forum_mode', 'mention', 'network', 'author-id', 'owner-id'];
1863 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
1864 $item = dba::selectFirst('item', $fields, $condition);
1866 if (!DBM::is_result($item)) {
1870 $item['iid'] = $itemid;
1873 $result = dba::insert('thread', $item);
1875 logger("Add thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
1879 private static function updateThread($itemid, $setmention = false)
1881 $fields = ['uid', 'guid', 'title', 'body', 'created', 'edited', 'commented', 'received', 'changed',
1882 'wall', 'private', 'pubmail', 'moderated', 'visible', 'spam', 'starred', 'bookmark', 'contact-id',
1883 'deleted', 'origin', 'forum_mode', 'network', 'rendered-html', 'rendered-hash'];
1884 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
1886 $item = dba::selectFirst('item', $fields, $condition);
1887 if (!DBM::is_result($item)) {
1892 $item["mention"] = 1;
1899 foreach ($item as $field => $data) {
1900 if (!in_array($field, ["guid", "title", "body", "rendered-html", "rendered-hash"])) {
1901 $fields[$field] = $data;
1905 $result = dba::update('thread', $fields, ['iid' => $itemid]);
1907 logger("Update thread for item ".$itemid." - guid ".$item["guid"]." - ".(int)$result." ".print_r($item, true), LOGGER_DEBUG);
1909 // Updating a shadow item entry
1910 $items = dba::selectFirst('item', ['id'], ['guid' => $item['guid'], 'uid' => 0]);
1912 if (!DBM::is_result($items)) {
1916 $fields = ['title' => $item['title'], 'body' => $item['body'],
1917 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
1918 $result = dba::update('item', $fields, ['id' => $items['id']]);
1920 logger("Updating public shadow for post ".$items["id"]." - guid ".$item["guid"]." Result: ".print_r($result, true), LOGGER_DEBUG);
1923 private static function deleteThread($itemid, $itemuri = "")
1925 $item = dba::selectFirst('thread', ['uid'], ['iid' => $itemid]);
1926 if (!DBM::is_result($item)) {
1927 logger('No thread found for id '.$itemid, LOGGER_DEBUG);
1931 // Using dba::delete at this time could delete the associated item entries
1932 $result = dba::e("DELETE FROM `thread` WHERE `iid` = ?", $itemid);
1934 logger("deleteThread: Deleted thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
1936 if ($itemuri != "") {
1937 $condition = ["`uri` = ? AND NOT `deleted` AND NOT (`uid` IN (?, 0))", $itemuri, $item["uid"]];
1938 if (!dba::exists('item', $condition)) {
1939 dba::delete('item', ['uri' => $itemuri, 'uid' => 0]);
1940 logger("deleteThread: Deleted shadow for item ".$itemuri, LOGGER_DEBUG);