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 // To ensure the data integrity we do it in an transaction
58 // We cannot simply expand the condition to check for origin entries
59 // The condition needn't to be a simple array but could be a complex condition.
60 // And we have to execute this query before the update to ensure to fetch the same data.
61 $items = dba::select('item', ['id', 'origin'], $condition);
63 $success = dba::update('item', $fields, $condition);
71 $rows = dba::affected_rows();
73 while ($item = dba::fetch($items)) {
74 Term::insertFromTagFieldByItemId($item['id']);
75 Term::insertFromFileFieldByItemId($item['id']);
76 self::updateThread($item['id']);
78 // We only need to notfiy others when it is an original entry from us.
79 // Only call the notifier when the item has some content relevant change.
80 if ($item['origin'] && in_array('edited', array_keys($fields))) {
81 Worker::add(PRIORITY_HIGH, "Notifier", 'edit_post', $item['id']);
91 * @brief Delete an item and notify others about it - if it was ours
93 * @param array $condition The condition for finding the item entries
94 * @param integer $priority Priority for the notification
95 * @param integer $uid User who wants to delete the item
97 public static function delete($condition, $priority = PRIORITY_HIGH, $uid = 0)
99 $items = dba::select('item', ['id'], $condition);
100 while ($item = dba::fetch($items)) {
101 self::deleteById($item['id'], $priority, $uid);
107 * @brief Delete an item and notify others about it - if it was ours
109 * @param integer $item_id Item ID that should be delete
110 * @param integer $priority Priority for the notification
111 * @param integer $uid User who wants to delete the item
113 * @return boolean success
115 public static function deleteById($item_id, $priority = PRIORITY_HIGH, $uid = 0)
117 // locate item to be deleted
118 $fields = ['id', 'uri', 'uid', 'parent', 'parent-uri', 'origin',
119 'deleted', 'file', 'resource-id', 'event-id', 'attach',
120 'verb', 'object-type', 'object', 'target', 'contact-id'];
121 $item = dba::selectFirst('item', $fields, ['id' => $item_id]);
122 if (!DBM::is_result($item)) {
123 logger('Item with ID ' . $item_id . " hasn't been found.", LOGGER_DEBUG);
127 if ($item['deleted']) {
128 logger('Item with ID ' . $item_id . ' has already been deleted.', LOGGER_DEBUG);
132 $parent = dba::selectFirst('item', ['origin'], ['id' => $item['parent']]);
133 if (!DBM::is_result($parent)) {
134 $parent = ['origin' => false];
137 // "Deleting" global items just means hiding them
138 if (($item['uid'] == 0) && ($uid != 0)) {
139 dba::update('user-item', ['hidden' => true], ['iid' => $item_id, 'uid' => $uid], true);
143 // clean up categories and tags so they don't end up as orphans
146 $cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
148 foreach ($matches as $mtch) {
149 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],true);
155 $cnt = preg_match_all('/\[(.*?)\]/', $item['file'], $matches, PREG_SET_ORDER);
157 foreach ($matches as $mtch) {
158 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],false);
163 * If item is a link to a photo resource, nuke all the associated photos
164 * (visitors will not have photo resources)
165 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
166 * generate a resource-id and therefore aren't intimately linked to the item.
168 if (strlen($item['resource-id'])) {
169 dba::delete('photo', ['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
172 // If item is a link to an event, delete the event.
173 if (intval($item['event-id'])) {
174 Event::delete($item['event-id']);
177 // If item has attachments, drop them
178 foreach (explode(", ", $item['attach']) as $attach) {
179 preg_match("|attach/(\d+)|", $attach, $matches);
180 dba::delete('attach', ['id' => $matches[1], 'uid' => $item['uid']]);
183 // Delete tags that had been attached to other items
184 self::deleteTagsFromItem($item);
186 // Set the item to "deleted"
187 dba::update('item', ['deleted' => true, 'title' => '', 'body' => '',
188 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()],
189 ['id' => $item['id']]);
191 Term::insertFromTagFieldByItemId($item['id']);
192 Term::insertFromFileFieldByItemId($item['id']);
193 self::deleteThread($item['id'], $item['parent-uri']);
195 if (!dba::exists('item', ["`uri` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri']])) {
196 self::delete(['uri' => $item['uri'], 'uid' => 0, 'deleted' => false], $priority);
199 // If it's the parent of a comment thread, kill all the kids
200 if ($item['id'] == $item['parent']) {
201 self::delete(['parent' => $item['parent'], 'deleted' => false], $priority);
204 // Is it our comment and/or our thread?
205 if ($item['origin'] || $parent['origin']) {
207 // When we delete the original post we will delete all existing copies on the server as well
208 self::delete(['uri' => $item['uri'], 'deleted' => false], $priority);
210 // send the notification upstream/downstream
211 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", "drop", intval($item['id']));
212 } elseif ($item['uid'] != 0) {
214 // When we delete just our local user copy of an item, we have to set a marker to hide it
215 $global_item = dba::selectFirst('item', ['id'], ['uri' => $item['uri'], 'uid' => 0, 'deleted' => false]);
216 if (DBM::is_result($global_item)) {
217 dba::update('user-item', ['hidden' => true], ['iid' => $global_item['id'], 'uid' => $item['uid']], true);
221 logger('Item with ID ' . $item_id . " has been deleted.", LOGGER_DEBUG);
226 private static function deleteTagsFromItem($item)
228 if (($item["verb"] != ACTIVITY_TAG) || ($item["object-type"] != ACTIVITY_OBJ_TAGTERM)) {
232 $xo = XML::parseString($item["object"], false);
233 $xt = XML::parseString($item["target"], false);
235 if ($xt->type != ACTIVITY_OBJ_NOTE) {
239 $i = dba::selectFirst('item', ['id', 'contact-id', 'tag'], ['uri' => $xt->id, 'uid' => $item['uid']]);
240 if (!DBM::is_result($i)) {
244 // For tags, the owner cannot remove the tag on the author's copy of the post.
245 $owner_remove = ($item["contact-id"] == $i["contact-id"]);
246 $author_copy = $item["origin"];
248 if (($owner_remove && $author_copy) || !$owner_remove) {
252 $tags = explode(',', $i["tag"]);
255 foreach ($tags as $tag) {
256 if (trim($tag) !== trim($xo->body)) {
257 $newtags[] = trim($tag);
261 self::update(['tag' => implode(',', $newtags)], ['id' => $i["id"]]);
264 private static function guid($item, $notify)
266 $guid = notags(trim($item['guid']));
273 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
274 // We add the hash of our own host because our host is the original creator of the post.
275 $prefix_host = get_app()->get_hostname();
279 // We are only storing the post so we create a GUID from the original hostname.
280 if (!empty($item['author-link'])) {
281 $parsed = parse_url($item['author-link']);
282 if (!empty($parsed['host'])) {
283 $prefix_host = $parsed['host'];
287 if (empty($prefix_host) && !empty($item['plink'])) {
288 $parsed = parse_url($item['plink']);
289 if (!empty($parsed['host'])) {
290 $prefix_host = $parsed['host'];
294 if (empty($prefix_host) && !empty($item['uri'])) {
295 $parsed = parse_url($item['uri']);
296 if (!empty($parsed['host'])) {
297 $prefix_host = $parsed['host'];
301 // Is it in the format data@host.tld? - Used for mail contacts
302 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
303 $mailparts = explode('@', $item['author-link']);
304 $prefix_host = array_pop($mailparts);
308 if (!empty($item['plink'])) {
309 $guid = self::guidFromUri($item['plink'], $prefix_host);
310 } elseif (!empty($item['uri'])) {
311 $guid = self::guidFromUri($item['uri'], $prefix_host);
313 $guid = get_guid(32, hash('crc32', $prefix_host));
319 private static function contactId($item)
321 $contact_id = (int)$item["contact-id"];
323 if (!empty($contact_id)) {
326 logger('Missing contact-id. Called by: '.System::callstack(), LOGGER_DEBUG);
328 * First we are looking for a suitable contact that matches with the author of the post
329 * This is done only for comments
331 if ($item['parent-uri'] != $item['uri']) {
332 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
335 // If not present then maybe the owner was found
336 if ($contact_id == 0) {
337 $contact_id = Contact::getIdForURL($item['owner-link'], $item['uid']);
340 // Still missing? Then use the "self" contact of the current user
341 if ($contact_id == 0) {
342 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $item['uid']]);
343 if (DBM::is_result($self)) {
344 $contact_id = $self["id"];
347 logger("Contact-id was missing for post ".$item['guid']." from user id ".$item['uid']." - now set to ".$contact_id, LOGGER_DEBUG);
352 public static function insert($item, $force_parent = false, $notify = false, $dontcache = false)
356 // If it is a posting where users should get notifications, then define it as wall posting
359 $item['type'] = 'wall';
361 $item['network'] = NETWORK_DFRN;
362 $item['protocol'] = PROTOCOL_DFRN;
364 if (is_int($notify)) {
367 $priority = PRIORITY_HIGH;
370 $item['network'] = trim(defaults($item, 'network', NETWORK_PHANTOM));
373 $item['guid'] = self::guid($item, $notify);
374 $item['uri'] = notags(trim(defaults($item, 'uri', item_new_uri($a->get_hostname(), $item['uid'], $item['guid']))));
376 // Store conversation data
377 $item = Conversation::insert($item);
380 * If a Diaspora signature structure was passed in, pull it out of the
381 * item array and set it aside for later storage.
385 if (x($item, 'dsprsig')) {
386 $encoded_signature = $item['dsprsig'];
387 $dsprsig = json_decode(base64_decode($item['dsprsig']));
388 unset($item['dsprsig']);
391 if (!empty($item['diaspora_signed_text'])) {
392 $diaspora_signed_text = $item['diaspora_signed_text'];
393 unset($item['diaspora_signed_text']);
395 $diaspora_signed_text = '';
398 // Converting the plink
399 /// @TODO Check if this is really still needed
400 if ($item['network'] == NETWORK_OSTATUS) {
401 if (isset($item['plink'])) {
402 $item['plink'] = OStatus::convertHref($item['plink']);
403 } elseif (isset($item['uri'])) {
404 $item['plink'] = OStatus::convertHref($item['uri']);
408 if (!empty($item['thr-parent'])) {
409 $item['parent-uri'] = $item['thr-parent'];
412 if (x($item, 'gravity')) {
413 $item['gravity'] = intval($item['gravity']);
414 } elseif ($item['parent-uri'] === $item['uri']) {
415 $item['gravity'] = 0;
416 } elseif (activity_match($item['verb'],ACTIVITY_POST)) {
417 $item['gravity'] = 6;
419 $item['gravity'] = 6; // extensible catchall
422 $item['type'] = defaults($item, 'type', 'remote');
424 $uid = intval($item['uid']);
426 // check for create date and expire time
427 $expire_interval = Config::get('system', 'dbclean-expire-days', 0);
429 $user = dba::selectFirst('user', ['expire'], ['uid' => $uid]);
430 if (DBM::is_result($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
431 $expire_interval = $user['expire'];
434 if (($expire_interval > 0) && !empty($item['created'])) {
435 $expire_date = time() - ($expire_interval * 86400);
436 $created_date = strtotime($item['created']);
437 if ($created_date < $expire_date) {
438 logger('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($item,true), LOGGER_DEBUG);
444 * Do we already have this item?
445 * We have to check several networks since Friendica posts could be repeated
446 * via OStatus (maybe Diasporsa as well)
448 if (in_array($item['network'], [NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS, ""])) {
449 $condition = ["`uri` = ? AND `uid` = ? AND `network` IN (?, ?, ?)",
450 trim($item['uri']), $item['uid'],
451 NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS];
452 $existing = dba::selectFirst('item', ['id', 'network'], $condition);
453 if (DBM::is_result($existing)) {
454 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
456 logger("Item with uri ".$item['uri']." already existed for user ".$uid." with id ".$existing["id"]." target network ".$existing["network"]." - new network: ".$item['network']);
459 return $existing["id"];
463 self::addLanguageInPostopts($item);
465 $item['wall'] = intval(defaults($item, 'wall', 0));
466 $item['extid'] = trim(defaults($item, 'extid', ''));
467 $item['author-name'] = trim(defaults($item, 'author-name', ''));
468 $item['author-link'] = trim(defaults($item, 'author-link', ''));
469 $item['author-avatar'] = trim(defaults($item, 'author-avatar', ''));
470 $item['owner-name'] = trim(defaults($item, 'owner-name', ''));
471 $item['owner-link'] = trim(defaults($item, 'owner-link', ''));
472 $item['owner-avatar'] = trim(defaults($item, 'owner-avatar', ''));
473 $item['received'] = ((x($item, 'received') !== false) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
474 $item['created'] = ((x($item, 'created') !== false) ? DateTimeFormat::utc($item['created']) : $item['received']);
475 $item['edited'] = ((x($item, 'edited') !== false) ? DateTimeFormat::utc($item['edited']) : $item['created']);
476 $item['changed'] = ((x($item, 'changed') !== false) ? DateTimeFormat::utc($item['changed']) : $item['created']);
477 $item['commented'] = ((x($item, 'commented') !== false) ? DateTimeFormat::utc($item['commented']) : $item['created']);
478 $item['title'] = trim(defaults($item, 'title', ''));
479 $item['location'] = trim(defaults($item, 'location', ''));
480 $item['coord'] = trim(defaults($item, 'coord', ''));
481 $item['visible'] = ((x($item, 'visible') !== false) ? intval($item['visible']) : 1);
482 $item['deleted'] = 0;
483 $item['parent-uri'] = trim(defaults($item, 'parent-uri', $item['uri']));
484 $item['verb'] = trim(defaults($item, 'verb', ''));
485 $item['object-type'] = trim(defaults($item, 'object-type', ''));
486 $item['object'] = trim(defaults($item, 'object', ''));
487 $item['target-type'] = trim(defaults($item, 'target-type', ''));
488 $item['target'] = trim(defaults($item, 'target', ''));
489 $item['plink'] = trim(defaults($item, 'plink', ''));
490 $item['allow_cid'] = trim(defaults($item, 'allow_cid', ''));
491 $item['allow_gid'] = trim(defaults($item, 'allow_gid', ''));
492 $item['deny_cid'] = trim(defaults($item, 'deny_cid', ''));
493 $item['deny_gid'] = trim(defaults($item, 'deny_gid', ''));
494 $item['private'] = intval(defaults($item, 'private', 0));
495 $item['bookmark'] = intval(defaults($item, 'bookmark', 0));
496 $item['body'] = trim(defaults($item, 'body', ''));
497 $item['tag'] = trim(defaults($item, 'tag', ''));
498 $item['attach'] = trim(defaults($item, 'attach', ''));
499 $item['app'] = trim(defaults($item, 'app', ''));
500 $item['origin'] = intval(defaults($item, 'origin', 0));
501 $item['postopts'] = trim(defaults($item, 'postopts', ''));
502 $item['resource-id'] = trim(defaults($item, 'resource-id', ''));
503 $item['event-id'] = intval(defaults($item, 'event-id', 0));
504 $item['inform'] = trim(defaults($item, 'inform', ''));
505 $item['file'] = trim(defaults($item, 'file', ''));
507 // When there is no content then we don't post it
508 if ($item['body'].$item['title'] == '') {
512 // Items cannot be stored before they happen ...
513 if ($item['created'] > DateTimeFormat::utcNow()) {
514 $item['created'] = DateTimeFormat::utcNow();
517 // We haven't invented time travel by now.
518 if ($item['edited'] > DateTimeFormat::utcNow()) {
519 $item['edited'] = DateTimeFormat::utcNow();
522 if (($item['author-link'] == "") && ($item['owner-link'] == "")) {
523 logger("Both author-link and owner-link are empty. Called by: " . System::callstack(), LOGGER_DEBUG);
526 $item['plink'] = defaults($item, 'plink', System::baseUrl() . '/display/' . urlencode($item['guid']));
528 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
529 $item["contact-id"] = self::contactId($item);
531 $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
532 'photo' => $item['author-avatar'], 'network' => $item['network']];
534 $item['author-id'] = defaults($item, 'author-id', Contact::getIdForURL($item["author-link"], 0, false, $default));
536 if (Contact::isBlocked($item["author-id"])) {
537 logger('Contact '.$item["author-id"].' is blocked, item '.$item["uri"].' will not be stored');
541 $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
542 'photo' => $item['owner-avatar'], 'network' => $item['network']];
544 $item['owner-id'] = defaults($item, 'owner-id', Contact::getIdForURL($item["owner-link"], 0, false, $default));
546 if (Contact::isBlocked($item["owner-id"])) {
547 logger('Contact '.$item["owner-id"].' is blocked, item '.$item["uri"].' will not be stored');
551 if ($item['network'] == NETWORK_PHANTOM) {
552 logger('Missing network. Called by: '.System::callstack(), LOGGER_DEBUG);
554 $contact = Contact::getDetailsByURL($item['author-link'], $item['uid']);
555 if (!empty($contact['network'])) {
556 $item['network'] = $contact["network"];
558 $item['network'] = NETWORK_DFRN;
560 logger("Set network to " . $item["network"] . " for " . $item["uri"], LOGGER_DEBUG);
563 // Checking if there is already an item with the same guid
564 logger('Checking for an item for user '.$item['uid'].' on network '.$item['network'].' with the guid '.$item['guid'], LOGGER_DEBUG);
565 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
566 if (dba::exists('item', $condition)) {
567 logger('found item with guid '.$item['guid'].' for user '.$item['uid'].' on network '.$item['network'], LOGGER_DEBUG);
571 // Check for hashtags in the body and repair or add hashtag links
572 self::setHashtags($item);
574 $item['thr-parent'] = $item['parent-uri'];
582 if ($item['parent-uri'] === $item['uri']) {
585 $allow_cid = $item['allow_cid'];
586 $allow_gid = $item['allow_gid'];
587 $deny_cid = $item['deny_cid'];
588 $deny_gid = $item['deny_gid'];
589 $notify_type = 'wall-new';
591 // find the parent and snarf the item id and ACLs
592 // and anything else we need to inherit
594 $fields = ['uri', 'parent-uri', 'id', 'deleted',
595 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
596 'wall', 'private', 'forum_mode', 'origin'];
597 $condition = ['uri' => $item['parent-uri'], 'uid' => $item['uid']];
598 $params = ['order' => ['id' => false]];
599 $parent = dba::selectFirst('item', $fields, $condition, $params);
601 if (DBM::is_result($parent)) {
602 // is the new message multi-level threaded?
603 // even though we don't support it now, preserve the info
604 // and re-attach to the conversation parent.
606 if ($parent['uri'] != $parent['parent-uri']) {
607 $item['parent-uri'] = $parent['parent-uri'];
609 $condition = ['uri' => $item['parent-uri'],
610 'parent-uri' => $item['parent-uri'],
611 'uid' => $item['uid']];
612 $params = ['order' => ['id' => false]];
613 $toplevel_parent = dba::selectFirst('item', $fields, $condition, $params);
615 if (DBM::is_result($toplevel_parent)) {
616 $parent = $toplevel_parent;
620 $parent_id = $parent['id'];
621 $parent_deleted = $parent['deleted'];
622 $allow_cid = $parent['allow_cid'];
623 $allow_gid = $parent['allow_gid'];
624 $deny_cid = $parent['deny_cid'];
625 $deny_gid = $parent['deny_gid'];
626 $item['wall'] = $parent['wall'];
627 $notify_type = 'comment-new';
630 * If the parent is private, force privacy for the entire conversation
631 * This differs from the above settings as it subtly allows comments from
632 * email correspondents to be private even if the overall thread is not.
634 if ($parent['private']) {
635 $item['private'] = $parent['private'];
639 * Edge case. We host a public forum that was originally posted to privately.
640 * The original author commented, but as this is a comment, the permissions
641 * weren't fixed up so it will still show the comment as private unless we fix it here.
643 if ((intval($parent['forum_mode']) == 1) && $parent['private']) {
644 $item['private'] = 0;
647 // If its a post from myself then tag the thread as "mention"
648 logger("Checking if parent ".$parent_id." has to be tagged as mention for user ".$item['uid'], LOGGER_DEBUG);
649 $user = dba::selectFirst('user', ['nickname'], ['uid' => $item['uid']]);
650 if (DBM::is_result($user)) {
651 $self = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
652 logger("'myself' is ".$self." for parent ".$parent_id." checking against ".$item['author-link']." and ".$item['owner-link'], LOGGER_DEBUG);
653 if ((normalise_link($item['author-link']) == $self) || (normalise_link($item['owner-link']) == $self)) {
654 dba::update('thread', ['mention' => true], ['iid' => $parent_id]);
655 logger("tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
660 * Allow one to see reply tweets from status.net even when
661 * we don't have or can't see the original post.
664 logger('$force_parent=true, reply converted to top-level post.');
666 $item['parent-uri'] = $item['uri'];
667 $item['gravity'] = 0;
669 logger('item parent '.$item['parent-uri'].' for '.$item['uid'].' was not found - ignoring item');
677 $condition = ["`uri` = ? AND `network` IN (?, ?) AND `uid` = ?",
678 $item['uri'], $item['network'], NETWORK_DFRN, $item['uid']];
679 if (dba::exists('item', $condition)) {
680 logger('duplicated item with the same uri found. '.print_r($item,true));
684 // On Friendica and Diaspora the GUID is unique
685 if (in_array($item['network'], [NETWORK_DFRN, NETWORK_DIASPORA])) {
686 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
687 if (dba::exists('item', $condition)) {
688 logger('duplicated item with the same guid found. '.print_r($item,true));
692 // Check for an existing post with the same content. There seems to be a problem with OStatus.
693 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
694 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
695 if (dba::exists('item', $condition)) {
696 logger('duplicated item with the same body found. '.print_r($item,true));
701 // Is this item available in the global items (with uid=0)?
702 if ($item["uid"] == 0) {
703 $item["global"] = true;
705 // Set the global flag on all items if this was a global item entry
706 dba::update('item', ['global' => true], ['uri' => $item["uri"]]);
708 $item["global"] = dba::exists('item', ['uid' => 0, 'uri' => $item["uri"]]);
712 if (strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid)) {
715 $private = $item['private'];
718 $item["allow_cid"] = $allow_cid;
719 $item["allow_gid"] = $allow_gid;
720 $item["deny_cid"] = $deny_cid;
721 $item["deny_gid"] = $deny_gid;
722 $item["private"] = $private;
723 $item["deleted"] = $parent_deleted;
725 // Fill the cache field
726 put_item_in_cache($item);
729 Addon::callHooks('post_local', $item);
731 Addon::callHooks('post_remote', $item);
734 // This array field is used to trigger some automatic reactions
735 // It is mainly used in the "post_local" hook.
736 unset($item['api_source']);
738 if (x($item, 'cancel')) {
739 logger('post cancelled by addon.');
744 * Check for already added items.
745 * There is a timing issue here that sometimes creates double postings.
746 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
748 if ($item["uid"] == 0) {
749 if (dba::exists('item', ['uri' => trim($item['uri']), 'uid' => 0])) {
750 logger('Global item already stored. URI: '.$item['uri'].' on network '.$item['network'], LOGGER_DEBUG);
755 logger('' . print_r($item,true), LOGGER_DATA);
758 $ret = dba::insert('item', $item);
760 // When the item was successfully stored we fetch the ID of the item.
761 if (DBM::is_result($ret)) {
762 $current_post = dba::lastInsertId();
764 // This can happen - for example - if there are locking timeouts.
767 // Store the data into a spool file so that we can try again later.
769 // At first we restore the Diaspora signature that we removed above.
770 if (isset($encoded_signature)) {
771 $item['dsprsig'] = $encoded_signature;
774 // Now we store the data in the spool directory
775 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
776 $file = 'item-'.round(microtime(true) * 10000).'-'.mt_rand().'.msg';
778 $spoolpath = get_spoolpath();
779 if ($spoolpath != "") {
780 $spool = $spoolpath.'/'.$file;
781 file_put_contents($spool, json_encode($item));
782 logger("Item wasn't stored - Item was spooled into file ".$file, LOGGER_DEBUG);
787 if ($current_post == 0) {
788 // This is one of these error messages that never should occur.
789 logger("couldn't find created item - we better quit now.");
794 // How much entries have we created?
795 // We wouldn't need this query when we could use an unique index - but MySQL has length problems with them.
796 $entries = dba::count('item', ['uri' => $item['uri'], 'uid' => $item['uid'], 'network' => $item['network']]);
799 // There are duplicates. We delete our just created entry.
800 logger('Duplicated post occurred. uri = ' . $item['uri'] . ' uid = ' . $item['uid']);
802 // Yes, we could do a rollback here - but we are having many users with MyISAM.
803 dba::delete('item', ['id' => $current_post]);
806 } elseif ($entries == 0) {
807 // This really should never happen since we quit earlier if there were problems.
808 logger("Something is terribly wrong. We haven't found our created entry.");
813 logger('created item '.$current_post);
814 self::updateContact($item);
816 if (!$parent_id || ($item['parent-uri'] === $item['uri'])) {
817 $parent_id = $current_post;
821 dba::update('item', ['parent' => $parent_id], ['id' => $current_post]);
823 $item['id'] = $current_post;
824 $item['parent'] = $parent_id;
826 // update the commented timestamp on the parent
827 // Only update "commented" if it is really a comment
828 if (($item['verb'] == ACTIVITY_POST) || !Config::get("system", "like_no_comment")) {
829 dba::update('item', ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
831 dba::update('item', ['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
836 * Friendica servers lower than 3.4.3-2 had double encoded the signature ...
837 * We can check for this condition when we decode and encode the stuff again.
839 if (base64_encode(base64_decode(base64_decode($dsprsig->signature))) == base64_decode($dsprsig->signature)) {
840 $dsprsig->signature = base64_decode($dsprsig->signature);
841 logger("Repaired double encoded signature from handle ".$dsprsig->signer, LOGGER_DEBUG);
844 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $dsprsig->signed_text,
845 'signature' => $dsprsig->signature, 'signer' => $dsprsig->signer]);
848 if (!empty($diaspora_signed_text)) {
849 // Formerly we stored the signed text, the signature and the author in different fields.
850 // We now store the raw data so that we are more flexible.
851 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $diaspora_signed_text]);
854 $deleted = self::tagDeliver($item['uid'], $current_post);
857 * current post can be deleted if is for a community page and no mention are
860 if (!$deleted && !$dontcache) {
861 $posted_item = dba::selectFirst('item', [], ['id' => $current_post]);
862 if (DBM::is_result($posted_item)) {
864 Addon::callHooks('post_local_end', $posted_item);
866 Addon::callHooks('post_remote_end', $posted_item);
869 logger('new item not found in DB, id ' . $current_post);
873 if ($item['parent-uri'] === $item['uri']) {
874 self::addThread($current_post);
876 self::updateThread($parent_id);
882 * Due to deadlock issues with the "term" table we are doing these steps after the commit.
883 * This is not perfect - but a workable solution until we found the reason for the problem.
885 Term::insertFromTagFieldByItemId($current_post);
886 Term::insertFromFileFieldByItemId($current_post);
888 if ($item['parent-uri'] === $item['uri']) {
889 self::addShadow($current_post);
891 self::addShadowPost($current_post);
894 check_user_notification($current_post);
897 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", $notify_type, $current_post);
898 } elseif (!empty($parent) && $parent['origin']) {
899 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "Notifier", "comment-import", $current_post);
902 return $current_post;
906 * @brief Distributes public items to the receivers
908 * @param integer $itemid Item ID that should be added
909 * @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
911 public static function distribute($itemid, $signed_text = '')
913 $condition = ["`id` IN (SELECT `parent` FROM `item` WHERE `id` = ?)", $itemid];
914 $parent = dba::selectFirst('item', ['owner-id'], $condition);
915 if (!DBM::is_result($parent)) {
919 // Only distribute public items from native networks
920 $condition = ['id' => $itemid, 'uid' => 0,
921 'network' => [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""],
922 'visible' => true, 'deleted' => false, 'moderated' => false, 'private' => false];
923 $item = dba::selectFirst('item', [], ['id' => $itemid]);
924 if (!DBM::is_result($item)) {
929 unset($item['parent']);
930 unset($item['mention']);
931 unset($item['wall']);
932 unset($item['origin']);
933 unset($item['starred']);
934 unset($item['rendered-hash']);
935 unset($item['rendered-html']);
939 $condition = ["`nurl` IN (SELECT `nurl` FROM `contact` WHERE `id` = ?) AND `uid` != 0 AND NOT `blocked` AND `rel` IN (?, ?)",
940 $parent['owner-id'], CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
941 $contacts = dba::select('contact', ['uid'], $condition);
942 while ($contact = dba::fetch($contacts)) {
943 $users[$contact['uid']] = $contact['uid'];
948 if ($item['uri'] != $item['parent-uri']) {
949 $parents = dba::select('item', ['uid', 'origin'], ["`uri` = ? AND `uid` != 0", $item['parent-uri']]);
950 while ($parent = dba::fetch($parents)) {
951 $users[$parent['uid']] = $parent['uid'];
952 if ($parent['origin'] && !$item['origin']) {
953 $origin_uid = $parent['uid'];
958 foreach ($users as $uid) {
959 if ($origin_uid == $uid) {
960 $item['diaspora_signed_text'] = $signed_text;
962 self::storeForUser($itemid, $item, $uid);
967 * @brief Store public items for the receivers
969 * @param integer $itemid Item ID that should be added
970 * @param array $item The item entry that will be stored
971 * @param integer $uid The user that will receive the item entry
973 private static function storeForUser($itemid, $item, $uid)
978 if ($item['uri'] == $item['parent-uri']) {
979 $item['contact-id'] = Contact::getIdForURL($item['owner-link'], $uid);
981 $item['contact-id'] = Contact::getIdForURL($item['author-link'], $uid);
984 if (empty($item['contact-id'])) {
985 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
986 if (!DBM::is_result($self)) {
989 $item['contact-id'] = $self['id'];
992 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
993 $item['type'] = 'remote-comment';
994 } elseif ($item['type'] == 'wall') {
995 $item['type'] = 'remote';
998 /// @todo Handling of "event-id"
1001 if ($item['uri'] == $item['parent-uri']) {
1002 $contact = dba::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
1003 if (DBM::is_result($contact)) {
1004 $notify = self::isRemoteSelf($contact, $item);
1008 $distributed = self::insert($item, false, $notify, true);
1010 if (!$distributed) {
1011 logger("Distributed public item " . $itemid . " for user " . $uid . " wasn't stored", LOGGER_DEBUG);
1013 logger("Distributed public item " . $itemid . " for user " . $uid . " with id " . $distributed, LOGGER_DEBUG);
1018 * @brief Add a shadow entry for a given item id that is a thread starter
1020 * We store every public item entry additionally with the user id "0".
1021 * This is used for the community page and for the search.
1022 * It is planned that in the future we will store public item entries only once.
1024 * @param integer $itemid Item ID that should be added
1026 public static function addShadow($itemid)
1028 $fields = ['uid', 'private', 'moderated', 'visible', 'deleted', 'network'];
1029 $condition = ['id' => $itemid, 'parent' => [0, $itemid]];
1030 $item = dba::selectFirst('item', $fields, $condition);
1032 if (!DBM::is_result($item)) {
1036 // is it already a copy?
1037 if (($itemid == 0) || ($item['uid'] == 0)) {
1041 // Is it a visible public post?
1042 if (!$item["visible"] || $item["deleted"] || $item["moderated"] || $item["private"]) {
1046 // is it an entry from a connector? Only add an entry for natively connected networks
1047 if (!in_array($item["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
1051 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1053 if (DBM::is_result($item) && ($item["allow_cid"] == '') && ($item["allow_gid"] == '') &&
1054 ($item["deny_cid"] == '') && ($item["deny_gid"] == '')) {
1056 if (!dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
1057 // Preparing public shadow (removing user specific data)
1060 unset($item['parent']);
1061 unset($item['wall']);
1062 unset($item['mention']);
1063 unset($item['origin']);
1064 unset($item['starred']);
1065 unset($item['rendered-hash']);
1066 unset($item['rendered-html']);
1067 if ($item['uri'] == $item['parent-uri']) {
1068 $item['contact-id'] = Contact::getIdForURL($item['owner-link']);
1070 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1073 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1074 $item['type'] = 'remote-comment';
1075 } elseif ($item['type'] == 'wall') {
1076 $item['type'] = 'remote';
1079 $public_shadow = self::insert($item, false, false, true);
1081 logger("Stored public shadow for thread ".$itemid." under id ".$public_shadow, LOGGER_DEBUG);
1087 * @brief Add a shadow entry for a given item id that is a comment
1089 * This function does the same like the function above - but for comments
1091 * @param integer $itemid Item ID that should be added
1093 public static function addShadowPost($itemid)
1095 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1096 if (!DBM::is_result($item)) {
1100 // Is it a toplevel post?
1101 if ($item['id'] == $item['parent']) {
1102 self::addShadow($itemid);
1106 // Is this a shadow entry?
1107 if ($item['uid'] == 0)
1110 // Is there a shadow parent?
1111 if (!dba::exists('item', ['uri' => $item['parent-uri'], 'uid' => 0])) {
1115 // Is there already a shadow entry?
1116 if (dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
1120 // Save "origin" and "parent" state
1121 $origin = $item['origin'];
1122 $parent = $item['parent'];
1124 // Preparing public shadow (removing user specific data)
1127 unset($item['parent']);
1128 unset($item['wall']);
1129 unset($item['mention']);
1130 unset($item['origin']);
1131 unset($item['starred']);
1132 unset($item['rendered-hash']);
1133 unset($item['rendered-html']);
1134 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1136 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1137 $item['type'] = 'remote-comment';
1138 } elseif ($item['type'] == 'wall') {
1139 $item['type'] = 'remote';
1142 $public_shadow = self::insert($item, false, false, true);
1144 logger("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, LOGGER_DEBUG);
1146 // If this was a comment to a Diaspora post we don't get our comment back.
1147 // This means that we have to distribute the comment by ourselves.
1149 if (dba::exists('item', ['id' => $parent, 'network' => NETWORK_DIASPORA])) {
1150 self::distribute($public_shadow);
1156 * Adds a "lang" specification in a "postopts" element of given $arr,
1157 * if possible and not already present.
1158 * Expects "body" element to exist in $arr.
1160 private static function addLanguageInPostopts(&$item)
1162 if (!empty($item['postopts'])) {
1163 if (strstr($item['postopts'], 'lang=')) {
1167 $postopts = $item['postopts'];
1172 $naked_body = Text\BBCode::toPlaintext($item['body'], false);
1174 $languages = (new Text_LanguageDetect())->detect($naked_body, 3);
1176 if (sizeof($languages) > 0) {
1177 if ($postopts != '') {
1178 $postopts .= '&'; // arbitrary separator, to be reviewed
1181 $postopts .= 'lang=';
1184 foreach ($languages as $language => $score) {
1185 $postopts .= $sep . $language . ";" . $score;
1188 $item['postopts'] = $postopts;
1193 * @brief Creates an unique guid out of a given uri
1195 * @param string $uri uri of an item entry
1196 * @param string $host hostname for the GUID prefix
1197 * @return string unique guid
1199 public static function guidFromUri($uri, $host)
1201 // Our regular guid routine is using this kind of prefix as well
1202 // We have to avoid that different routines could accidentally create the same value
1203 $parsed = parse_url($uri);
1205 // We use a hash of the hostname as prefix for the guid
1206 $guid_prefix = hash("crc32", $host);
1208 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1209 unset($parsed["scheme"]);
1211 // Glue it together to be able to make a hash from it
1212 $host_id = implode("/", $parsed);
1214 // We could use any hash algorithm since it isn't a security issue
1215 $host_hash = hash("ripemd128", $host_id);
1217 return $guid_prefix.$host_hash;
1221 * @brief Set "success_update" and "last-item" to the date of the last time we heard from this contact
1223 * This can be used to filter for inactive contacts.
1224 * Only do this for public postings to avoid privacy problems, since poco data is public.
1225 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1227 * @param array $arr Contains the just posted item record
1229 private static function updateContact($arr)
1231 // Unarchive the author
1232 $contact = dba::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1233 if (DBM::is_result($contact)) {
1234 Contact::unmarkForArchival($contact);
1237 // Unarchive the contact if it's not our own contact
1238 $contact = dba::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
1239 if (DBM::is_result($contact)) {
1240 Contact::unmarkForArchival($contact);
1243 $update = (!$arr['private'] && (($arr["author-link"] === $arr["owner-link"]) || ($arr["parent-uri"] === $arr["uri"])));
1245 // Is it a forum? Then we don't care about the rules from above
1246 if (!$update && ($arr["network"] == NETWORK_DFRN) && ($arr["parent-uri"] === $arr["uri"])) {
1247 if (dba::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
1253 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1254 ['id' => $arr['contact-id']]);
1256 // Now do the same for the system wide contacts with uid=0
1257 if (!$arr['private']) {
1258 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1259 ['id' => $arr['owner-id']]);
1261 if ($arr['owner-id'] != $arr['author-id']) {
1262 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1263 ['id' => $arr['author-id']]);
1268 public static function setHashtags(&$item)
1271 $tags = get_tags($item["body"]);
1274 if (!count($tags)) {
1278 // This sorting is important when there are hashtags that are part of other hashtags
1279 // Otherwise there could be problems with hashtags like #test and #test2
1282 $URLSearchString = "^\[\]";
1284 // All hashtags should point to the home server if "local_tags" is activated
1285 if (Config::get('system', 'local_tags')) {
1286 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1287 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["body"]);
1289 $item["tag"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1290 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["tag"]);
1293 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
1294 $item["body"] = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1296 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
1299 $item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
1301 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
1304 $item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
1306 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
1309 // Repair recursive urls
1310 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1311 "#$2", $item["body"]);
1313 foreach ($tags as $tag) {
1314 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=')) {
1318 $basetag = str_replace('_',' ',substr($tag,1));
1320 $newtag = '#[url=' . System::baseUrl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
1322 $item["body"] = str_replace($tag, $newtag, $item["body"]);
1324 if (!stristr($item["tag"], "/search?tag=" . $basetag . "]" . $basetag . "[/url]")) {
1325 if (strlen($item["tag"])) {
1326 $item["tag"] = ','.$item["tag"];
1328 $item["tag"] = $newtag.$item["tag"];
1332 // Convert back the masked hashtags
1333 $item["body"] = str_replace("#", "#", $item["body"]);
1336 public static function getGuidById($id)
1338 $item = dba::selectFirst('item', ['guid'], ['id' => $id]);
1339 if (DBM::is_result($item)) {
1340 return $item['guid'];
1346 public static function getIdAndNickByGuid($guid, $uid = 0)
1352 $uid == local_user();
1355 // Does the given user have this item?
1357 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1358 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1359 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1360 AND `item`.`guid` = ? AND `item`.`uid` = ?", $guid, $uid);
1361 if (DBM::is_result($item)) {
1363 $nick = $item["nickname"];
1367 // Or is it anywhere on the server?
1369 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1370 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1371 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1372 AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = ''
1373 AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = ''
1374 AND NOT `item`.`private` AND `item`.`wall`
1375 AND `item`.`guid` = ?", $guid);
1376 if (DBM::is_result($item)) {
1378 $nick = $item["nickname"];
1381 return ["nick" => $nick, "id" => $id];
1385 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1387 * @param int $item_id
1388 * @return bool true if item was deleted, else false
1390 private static function tagDeliver($uid, $item_id)
1394 $user = dba::selectFirst('user', [], ['uid' => $uid]);
1395 if (!DBM::is_result($user)) {
1399 $community_page = (($user['page-flags'] == PAGE_COMMUNITY) ? true : false);
1400 $prvgroup = (($user['page-flags'] == PAGE_PRVGROUP) ? true : false);
1402 $item = dba::selectFirst('item', [], ['id' => $item_id]);
1403 if (!DBM::is_result($item)) {
1407 $link = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
1410 * Diaspora uses their own hardwired link URL in @-tags
1411 * instead of the one we supply with webfinger
1413 $dlink = normalise_link(System::baseUrl() . '/u/' . $user['nickname']);
1415 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
1417 foreach ($matches as $mtch) {
1418 if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) {
1420 logger('mention found: ' . $mtch[2]);
1426 if (($community_page || $prvgroup) &&
1427 !$item['wall'] && !$item['origin'] && ($item['id'] == $item['parent'])) {
1428 // mmh.. no mention.. community page or private group... no wall.. no origin.. top-post (not a comment)
1430 logger("no-mention top-level post to community or private group. delete.");
1431 dba::delete('item', ['id' => $item_id]);
1437 $arr = ['item' => $item, 'user' => $user];
1439 Addon::callHooks('tagged', $arr);
1441 if (!$community_page && !$prvgroup) {
1446 * tgroup delivery - setup a second delivery chain
1447 * prevent delivery looping - only proceed
1448 * if the message originated elsewhere and is a top-level post
1450 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
1454 // now change this copy of the post to a forum head message and deliver to all the tgroup members
1455 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
1456 if (!DBM::is_result($self)) {
1460 $owner_id = Contact::getIdForURL($self['url']);
1462 // also reset all the privacy bits to the forum default permissions
1464 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? 1 : 0;
1466 $forum_mode = ($prvgroup ? 2 : 1);
1468 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
1469 'owner-id' => $owner_id, 'owner-name' => $self['name'], 'owner-link' => $self['url'],
1470 'owner-avatar' => $self['thumb'], 'private' => $private, 'allow_cid' => $user['allow_cid'],
1471 'allow_gid' => $user['allow_gid'], 'deny_cid' => $user['deny_cid'], 'deny_gid' => $user['deny_gid']];
1472 dba::update('item', $fields, ['id' => $item_id]);
1474 self::updateThread($item_id);
1476 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', 'tgroup', $item_id);
1479 public static function isRemoteSelf($contact, &$datarray)
1483 if (!$contact['remote_self']) {
1487 // Prevent the forwarding of posts that are forwarded
1488 if ($datarray["extid"] == NETWORK_DFRN) {
1489 logger('Already forwarded', LOGGER_DEBUG);
1493 // Prevent to forward already forwarded posts
1494 if ($datarray["app"] == $a->get_hostname()) {
1495 logger('Already forwarded (second test)', LOGGER_DEBUG);
1499 // Only forward posts
1500 if ($datarray["verb"] != ACTIVITY_POST) {
1501 logger('No post', LOGGER_DEBUG);
1505 if (($contact['network'] != NETWORK_FEED) && $datarray['private']) {
1506 logger('Not public', LOGGER_DEBUG);
1510 $datarray2 = $datarray;
1511 logger('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), LOGGER_DEBUG);
1512 if ($contact['remote_self'] == 2) {
1513 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
1514 ['uid' => $contact['uid'], 'self' => true]);
1515 if (DBM::is_result($self)) {
1516 $datarray['contact-id'] = $self["id"];
1518 $datarray['owner-name'] = $self["name"];
1519 $datarray['owner-link'] = $self["url"];
1520 $datarray['owner-avatar'] = $self["thumb"];
1522 $datarray['author-name'] = $datarray['owner-name'];
1523 $datarray['author-link'] = $datarray['owner-link'];
1524 $datarray['author-avatar'] = $datarray['owner-avatar'];
1526 unset($datarray['created']);
1527 unset($datarray['edited']);
1529 unset($datarray['network']);
1530 unset($datarray['owner-id']);
1531 unset($datarray['author-id']);
1534 if ($contact['network'] != NETWORK_FEED) {
1535 $datarray["guid"] = get_guid(32);
1536 unset($datarray["plink"]);
1537 $datarray["uri"] = item_new_uri($a->get_hostname(), $contact['uid'], $datarray["guid"]);
1538 $datarray["parent-uri"] = $datarray["uri"];
1539 $datarray["thr-parent"] = $datarray["uri"];
1540 $datarray["extid"] = NETWORK_DFRN;
1541 $urlpart = parse_url($datarray2['author-link']);
1542 $datarray["app"] = $urlpart["host"];
1544 $datarray['private'] = 0;
1548 if ($contact['network'] != NETWORK_FEED) {
1549 // Store the original post
1550 $result = self::insert($datarray2, false, false);
1551 logger('remote-self post original item - Contact '.$contact['url'].' return '.$result.' Item '.print_r($datarray2, true), LOGGER_DEBUG);
1553 $datarray["app"] = "Feed";
1557 // Trigger automatic reactions for addons
1558 $datarray['api_source'] = true;
1560 // We have to tell the hooks who we are - this really should be improved
1561 $_SESSION["authenticated"] = true;
1562 $_SESSION["uid"] = $contact['uid'];
1571 * @param array $item
1575 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
1577 if (Config::get('system', 'disable_embedded')) {
1581 logger('check for photos', LOGGER_DEBUG);
1582 $site = substr(System::baseUrl(), strpos(System::baseUrl(), '://'));
1587 $img_start = strpos($orig_body, '[img');
1588 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
1589 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
1591 while (($img_st_close !== false) && ($img_len !== false)) {
1592 $img_st_close++; // make it point to AFTER the closing bracket
1593 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
1595 logger('found photo ' . $image, LOGGER_DEBUG);
1597 if (stristr($image, $site . '/photo/')) {
1598 // Only embed locally hosted photos
1600 $i = basename($image);
1601 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
1602 $x = strpos($i, '-');
1605 $res = substr($i, $x + 1);
1606 $i = substr($i, 0, $x);
1607 $fields = ['data', 'type', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
1608 $photo = dba::selectFirst('photo', $fields, ['resource-id' => $i, 'scale' => $res, 'uid' => $uid]);
1609 if (DBM::is_result($photo)) {
1611 * Check to see if we should replace this photo link with an embedded image
1612 * 1. No need to do so if the photo is public
1613 * 2. If there's a contact-id provided, see if they're in the access list
1614 * for the photo. If so, embed it.
1615 * 3. Otherwise, if we have an item, see if the item permissions match the photo
1616 * permissions, regardless of order but first check to see if they're an exact
1617 * match to save some processing overhead.
1619 if (self::hasPermissions($photo)) {
1621 $recips = self::enumeratePermissions($photo);
1622 if (in_array($cid, $recips)) {
1626 if (self::samePermissions($item, $photo)) {
1632 $data = $photo['data'];
1633 $type = $photo['type'];
1635 // If a custom width and height were specified, apply before embedding
1636 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
1637 logger('scaling photo', LOGGER_DEBUG);
1639 $width = intval($match[1]);
1640 $height = intval($match[2]);
1642 $Image = new Image($data, $type);
1643 if ($Image->isValid()) {
1644 $Image->scaleDown(max($width, $height));
1645 $data = $Image->asString();
1646 $type = $Image->getType();
1650 logger('replacing photo', LOGGER_DEBUG);
1651 $image = 'data:' . $type . ';base64,' . base64_encode($data);
1652 logger('replaced: ' . $image, LOGGER_DATA);
1658 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
1659 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
1660 if ($orig_body === false) {
1664 $img_start = strpos($orig_body, '[img');
1665 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
1666 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
1669 $new_body = $new_body . $orig_body;
1674 private static function hasPermissions($obj)
1678 x($obj, 'allow_cid')
1680 x($obj, 'allow_gid')
1689 private static function samePermissions($obj1, $obj2)
1691 // first part is easy. Check that these are exactly the same.
1692 if (($obj1['allow_cid'] == $obj2['allow_cid'])
1693 && ($obj1['allow_gid'] == $obj2['allow_gid'])
1694 && ($obj1['deny_cid'] == $obj2['deny_cid'])
1695 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
1699 // This is harder. Parse all the permissions and compare the resulting set.
1700 $recipients1 = self::enumeratePermissions($obj1);
1701 $recipients2 = self::enumeratePermissions($obj2);
1705 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
1706 return ($recipients1 == $recipients2);
1709 // returns an array of contact-ids that are allowed to see this object
1710 private static function enumeratePermissions($obj)
1712 $allow_people = expand_acl($obj['allow_cid']);
1713 $allow_groups = Group::expand(expand_acl($obj['allow_gid']));
1714 $deny_people = expand_acl($obj['deny_cid']);
1715 $deny_groups = Group::expand(expand_acl($obj['deny_gid']));
1716 $recipients = array_unique(array_merge($allow_people, $allow_groups));
1717 $deny = array_unique(array_merge($deny_people, $deny_groups));
1718 $recipients = array_diff($recipients, $deny);
1722 public static function getFeedTags($item)
1726 $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
1728 for ($x = 0; $x < $cnt; $x ++) {
1729 if ($matches[1][$x]) {
1730 $ret[$matches[2][$x]] = ['#', $matches[1][$x], $matches[2][$x]];
1735 $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
1737 for ($x = 0; $x < $cnt; $x ++) {
1738 if ($matches[1][$x]) {
1739 $ret[] = ['@', $matches[1][$x], $matches[2][$x]];
1746 public static function expire($uid, $days, $network = "", $force = false)
1748 if (!$uid || ($days < 1)) {
1753 * $expire_network_only = save your own wall posts
1754 * and just expire conversations started by others
1756 $expire_network_only = PConfig::get($uid,'expire', 'network_only');
1757 $sql_extra = (intval($expire_network_only) ? " AND wall = 0 " : "");
1759 if ($network != "") {
1760 $sql_extra .= sprintf(" AND network = '%s' ", dbesc($network));
1763 * There is an index "uid_network_received" but not "uid_network_created"
1764 * This avoids the creation of another index just for one purpose.
1765 * And it doesn't really matter wether to look at "received" or "created"
1767 $range = "AND `received` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
1769 $range = "AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
1772 $r = q("SELECT `file`, `resource-id`, `starred`, `type`, `id` FROM `item`
1773 WHERE `uid` = %d $range
1781 if (!DBM::is_result($r)) {
1785 $expire_items = PConfig::get($uid, 'expire', 'items', 1);
1787 // Forcing expiring of items - but not notes and marked items
1789 $expire_items = true;
1792 $expire_notes = PConfig::get($uid, 'expire', 'notes', 1);
1793 $expire_starred = PConfig::get($uid, 'expire', 'starred', 1);
1794 $expire_photos = PConfig::get($uid, 'expire', 'photos', 0);
1796 logger('User '.$uid.': expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
1798 foreach ($r as $item) {
1800 // don't expire filed items
1802 if (strpos($item['file'],'[') !== false) {
1806 // Only expire posts, not photos and photo comments
1808 if ($expire_photos == 0 && strlen($item['resource-id'])) {
1810 } elseif ($expire_starred == 0 && intval($item['starred'])) {
1812 } elseif ($expire_notes == 0 && $item['type'] == 'note') {
1814 } elseif ($expire_items == 0 && $item['type'] != 'note') {
1818 self::deleteById($item['id'], PRIORITY_LOW);
1822 public static function firstPostDate($uid, $wall = false)
1824 $condition = ['uid' => $uid, 'wall' => $wall, 'deleted' => false, 'visible' => true, 'moderated' => false];
1825 $params = ['order' => ['created' => false]];
1826 $thread = dba::selectFirst('thread', ['created'], $condition, $params);
1827 if (DBM::is_result($thread)) {
1828 return substr(DateTimeFormat::local($thread['created']), 0, 10);
1834 * @brief add/remove activity to an item
1836 * Toggle activities as like,dislike,attend of an item
1838 * @param string $item_id
1839 * @param string $verb
1840 * Activity verb. One of
1841 * like, unlike, dislike, undislike, attendyes, unattendyes,
1842 * attendno, unattendno, attendmaybe, unattendmaybe
1843 * @hook 'post_local_end'
1845 * 'post_id' => ID of posted item
1847 public static function performLike($item_id, $verb)
1849 if (!local_user() && !remote_user()) {
1856 $bodyverb = L10n::t('%1$s likes %2$s\'s %3$s');
1857 $activity = ACTIVITY_LIKE;
1861 $bodyverb = L10n::t('%1$s doesn\'t like %2$s\'s %3$s');
1862 $activity = ACTIVITY_DISLIKE;
1866 $bodyverb = L10n::t('%1$s is attending %2$s\'s %3$s');
1867 $activity = ACTIVITY_ATTEND;
1871 $bodyverb = L10n::t('%1$s is not attending %2$s\'s %3$s');
1872 $activity = ACTIVITY_ATTENDNO;
1875 case 'unattendmaybe':
1876 $bodyverb = L10n::t('%1$s may attend %2$s\'s %3$s');
1877 $activity = ACTIVITY_ATTENDMAYBE;
1880 logger('like: unknown verb ' . $verb . ' for item ' . $item_id);
1884 // Enable activity toggling instead of on/off
1885 $event_verb_flag = $activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE;
1887 logger('like: verb ' . $verb . ' item ' . $item_id);
1889 $item = dba::selectFirst('item', [], ['`id` = ? OR `uri` = ?', $item_id, $item_id]);
1890 if (!DBM::is_result($item)) {
1891 logger('like: unknown item ' . $item_id);
1895 $uid = $item['uid'];
1896 if (($uid == 0) && local_user()) {
1897 $uid = local_user();
1900 if (!can_write_wall($uid)) {
1901 logger('like: unable to write on wall ' . $uid);
1905 // Retrieves the local post owner
1906 $owner_self_contact = dba::selectFirst('contact', [], ['uid' => $uid, 'self' => true]);
1907 if (!DBM::is_result($owner_self_contact)) {
1908 logger('like: unknown owner ' . $uid);
1912 // Retrieve the current logged in user's public contact
1913 $author_id = public_contact();
1915 $author_contact = dba::selectFirst('contact', [], ['id' => $author_id]);
1916 if (!DBM::is_result($author_contact)) {
1917 logger('like: unknown author ' . $author_id);
1921 // Contact-id is the uid-dependant author contact
1922 if (local_user() == $uid) {
1923 $item_contact_id = $owner_self_contact['id'];
1924 $item_contact = $owner_self_contact;
1926 $item_contact_id = Contact::getIdForURL($author_contact['url'], $uid, true);
1927 $item_contact = dba::selectFirst('contact', [], ['id' => $item_contact_id]);
1928 if (!DBM::is_result($item_contact)) {
1929 logger('like: unknown item contact ' . $item_contact_id);
1934 // Look for an existing verb row
1935 // event participation are essentially radio toggles. If you make a subsequent choice,
1936 // we need to eradicate your first choice.
1937 if ($event_verb_flag) {
1938 $verbs = "'" . dbesc(ACTIVITY_ATTEND) . "', '" . dbesc(ACTIVITY_ATTENDNO) . "', '" . dbesc(ACTIVITY_ATTENDMAYBE) . "'";
1940 $verbs = "'".dbesc($activity)."'";
1943 /// @todo This query is expected to be a performance eater due to the "OR" - it has to be changed totally
1944 $existing_like = q("SELECT `id`, `guid`, `verb` FROM `item`
1945 WHERE `verb` IN ($verbs)
1947 AND `author-id` = %d
1949 AND (`parent` = '%s' OR `parent-uri` = '%s' OR `thr-parent` = '%s')
1951 intval($author_contact['id']),
1952 intval($item['uid']),
1953 dbesc($item_id), dbesc($item_id), dbesc($item['uri'])
1956 // If it exists, mark it as deleted
1957 if (DBM::is_result($existing_like)) {
1958 $like_item = $existing_like[0];
1960 // Already voted, undo it
1961 $fields = ['deleted' => true, 'unseen' => true, 'changed' => DateTimeFormat::utcNow()];
1962 dba::update('item', $fields, ['id' => $like_item['id']]);
1964 // Clean up the Diaspora signatures for this like
1965 // Go ahead and do it even if Diaspora support is disabled. We still want to clean up
1966 // if it had been enabled in the past
1967 dba::delete('sign', ['iid' => $like_item['id']]);
1969 $like_item_id = $like_item['id'];
1970 Worker::add(PRIORITY_HIGH, "Notifier", "like", $like_item_id);
1972 if (!$event_verb_flag || $like_item['verb'] == $activity) {
1977 // Verb is "un-something", just trying to delete existing entries
1978 if (strpos($verb, 'un') === 0) {
1982 // Else or if event verb different from existing row, create a new item row
1983 $post_type = (($item['resource-id']) ? L10n::t('photo') : L10n::t('status'));
1984 if ($item['object-type'] === ACTIVITY_OBJ_EVENT) {
1985 $post_type = L10n::t('event');
1987 $objtype = $item['resource-id'] ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE ;
1988 $link = xmlify('<link rel="alternate" type="text/html" href="' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . '" />' . "\n") ;
1989 $body = $item['body'];
1994 <type>$objtype</type>
1996 <id>{$item['uri']}</id>
1999 <content>$body</content>
2003 $ulink = '[url=' . $author_contact['url'] . ']' . $author_contact['name'] . '[/url]';
2004 $alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
2005 $plink = '[url=' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
2008 'guid' => get_guid(32),
2009 'uri' => item_new_uri(self::getApp()->get_hostname(), $item['uid']),
2010 'uid' => $item['uid'],
2011 'contact-id' => $item_contact_id,
2012 'type' => 'activity',
2013 'wall' => $item['wall'],
2015 'gravity' => GRAVITY_LIKE,
2016 'parent' => $item['id'],
2017 'parent-uri' => $item['uri'],
2018 'thr-parent' => $item['uri'],
2019 'owner-id' => $item['owner-id'],
2020 'owner-name' => $item['owner-name'],
2021 'owner-link' => $item['owner-link'],
2022 'owner-avatar' => $item['owner-avatar'],
2023 'author-id' => $author_contact['id'],
2024 'author-name' => $author_contact['name'],
2025 'author-link' => $author_contact['url'],
2026 'author-avatar' => $author_contact['thumb'],
2027 'body' => sprintf($bodyverb, $ulink, $alink, $plink),
2028 'verb' => $activity,
2029 'object-type' => $objtype,
2031 'allow_cid' => $item['allow_cid'],
2032 'allow_gid' => $item['allow_gid'],
2033 'deny_cid' => $item['deny_cid'],
2034 'deny_gid' => $item['deny_gid'],
2039 $new_item_id = self::insert($new_item);
2041 // If the parent item isn't visible then set it to visible
2042 if (!$item['visible']) {
2043 self::update(['visible' => true], ['id' => $item['id']]);
2046 // Save the author information for the like in case we need to relay to Diaspora
2047 Diaspora::storeLikeSignature($item_contact, $new_item_id);
2049 $new_item['id'] = $new_item_id;
2051 Addon::callHooks('post_local_end', $new_item);
2053 Worker::add(PRIORITY_HIGH, "Notifier", "like", $new_item_id);
2058 private static function addThread($itemid, $onlyshadow = false)
2060 $fields = ['uid', 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private', 'pubmail',
2061 'moderated', 'visible', 'spam', 'starred', 'bookmark', 'contact-id',
2062 'deleted', 'origin', 'forum_mode', 'mention', 'network', 'author-id', 'owner-id'];
2063 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
2064 $item = dba::selectFirst('item', $fields, $condition);
2066 if (!DBM::is_result($item)) {
2070 $item['iid'] = $itemid;
2073 $result = dba::insert('thread', $item);
2075 logger("Add thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
2079 private static function updateThread($itemid, $setmention = false)
2081 $fields = ['uid', 'guid', 'title', 'body', 'created', 'edited', 'commented', 'received', 'changed',
2082 'wall', 'private', 'pubmail', 'moderated', 'visible', 'spam', 'starred', 'bookmark', 'contact-id',
2083 'deleted', 'origin', 'forum_mode', 'network', 'author-id', 'owner-id', 'rendered-html', 'rendered-hash'];
2084 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
2086 $item = dba::selectFirst('item', $fields, $condition);
2087 if (!DBM::is_result($item)) {
2092 $item["mention"] = 1;
2099 foreach ($item as $field => $data) {
2100 if (!in_array($field, ["guid", "title", "body", "rendered-html", "rendered-hash"])) {
2101 $fields[$field] = $data;
2105 $result = dba::update('thread', $fields, ['iid' => $itemid]);
2107 logger("Update thread for item ".$itemid." - guid ".$item["guid"]." - ".(int)$result, LOGGER_DEBUG);
2109 // Updating a shadow item entry
2110 $items = dba::selectFirst('item', ['id'], ['guid' => $item['guid'], 'uid' => 0]);
2112 if (!DBM::is_result($items)) {
2116 $fields = ['title' => $item['title'], 'body' => $item['body'],
2117 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
2118 $result = dba::update('item', $fields, ['id' => $items['id']]);
2120 logger("Updating public shadow for post ".$items["id"]." - guid ".$item["guid"]." Result: ".print_r($result, true), LOGGER_DEBUG);
2123 private static function deleteThread($itemid, $itemuri = "")
2125 $item = dba::selectFirst('thread', ['uid'], ['iid' => $itemid]);
2126 if (!DBM::is_result($item)) {
2127 logger('No thread found for id '.$itemid, LOGGER_DEBUG);
2131 // Using dba::delete at this time could delete the associated item entries
2132 $result = dba::e("DELETE FROM `thread` WHERE `iid` = ?", $itemid);
2134 logger("deleteThread: Deleted thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
2136 if ($itemuri != "") {
2137 $condition = ["`uri` = ? AND NOT `deleted` AND NOT (`uid` IN (?, 0))", $itemuri, $item["uid"]];
2138 if (!dba::exists('item', $condition)) {
2139 dba::delete('item', ['uri' => $itemuri, 'uid' => 0]);
2140 logger("deleteThread: Deleted shadow for item ".$itemuri, LOGGER_DEBUG);