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 if ($item['origin']) {
80 Worker::add(PRIORITY_HIGH, "Notifier", 'edit_post', $item['id']);
90 * @brief Delete an item and notify others about it - if it was ours
92 * @param array $condition The condition for finding the item entries
93 * @param integer $priority Priority for the notification
95 public static function delete($condition, $priority = PRIORITY_HIGH)
97 $items = dba::select('item', ['id'], $condition);
98 while ($item = dba::fetch($items)) {
99 self::deleteById($item['id'], $priority);
105 * @brief Delete an item and notify others about it - if it was ours
107 * @param integer $item_id Item ID that should be delete
108 * @param integer $priority Priority for the notification
110 * @return boolean success
112 public static function deleteById($item_id, $priority = PRIORITY_HIGH)
114 // locate item to be deleted
115 $fields = ['id', 'uri', 'uid', 'parent', 'parent-uri', 'origin',
116 'deleted', 'file', 'resource-id', 'event-id', 'attach',
117 'verb', 'object-type', 'object', 'target', 'contact-id'];
118 $item = dba::selectFirst('item', $fields, ['id' => $item_id]);
119 if (!DBM::is_result($item)) {
120 logger('Item with ID ' . $item_id . " hadn't been found.", LOGGER_DEBUG);
124 if ($item['deleted']) {
125 logger('Item with ID ' . $item_id . ' is already deleted.', LOGGER_DEBUG);
129 $parent = dba::selectFirst('item', ['origin'], ['id' => $item['parent']]);
130 if (!DBM::is_result($parent)) {
131 $parent = ['origin' => false];
134 // clean up categories and tags so they don't end up as orphans
137 $cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
139 foreach ($matches as $mtch) {
140 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],true);
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'], $mtch[1],false);
154 * If item is a link to a photo resource, nuke all the associated photos
155 * (visitors will not have photo resources)
156 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
157 * generate a resource-id and therefore aren't intimately linked to the item.
159 if (strlen($item['resource-id'])) {
160 dba::delete('photo', ['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
163 // If item is a link to an event, delete the event.
164 if (intval($item['event-id'])) {
165 Event::delete($item['event-id']);
168 // If item has attachments, drop them
169 foreach (explode(", ", $item['attach']) as $attach) {
170 preg_match("|attach/(\d+)|", $attach, $matches);
171 dba::delete('attach', ['id' => $matches[1], 'uid' => $item['uid']]);
174 // Delete tags that had been attached to other items
175 self::deleteTagsFromItem($item);
177 // Set the item to "deleted"
178 dba::update('item', ['deleted' => true, 'title' => '', 'body' => '',
179 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()],
180 ['id' => $item['id']]);
182 Term::insertFromTagFieldByItemId($item['id']);
183 Term::insertFromFileFieldByItemId($item['id']);
184 self::deleteThread($item['id'], $item['parent-uri']);
186 if (!dba::exists('item', ["`uri` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri']])) {
187 self::delete(['uri' => $item['uri'], 'uid' => 0, 'deleted' => false], $priority);
190 // If it's the parent of a comment thread, kill all the kids
191 if ($item['id'] == $item['parent']) {
192 self::delete(['parent' => $item['parent'], 'deleted' => false], $priority);
195 // Is it our comment and/or our thread?
196 if ($item['origin'] || $parent['origin']) {
198 // When we delete the original post we will delete all existing copies on the server as well
199 self::delete(['uri' => $item['uri'], 'deleted' => false], $priority);
201 // send the notification upstream/downstream
202 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", "drop", intval($item['id']));
205 logger('Item with ID ' . $item_id . " had been deleted.", LOGGER_DEBUG);
210 private static function deleteTagsFromItem($item)
212 if (($item["verb"] != ACTIVITY_TAG) || ($item["object-type"] != ACTIVITY_OBJ_TAGTERM)) {
216 $xo = XML::parseString($item["object"], false);
217 $xt = XML::parseString($item["target"], false);
219 if ($xt->type != ACTIVITY_OBJ_NOTE) {
223 $i = dba::selectFirst('item', ['id', 'contact-id', 'tag'], ['uri' => $xt->id, 'uid' => $item['uid']]);
224 if (!DBM::is_result($i)) {
228 // For tags, the owner cannot remove the tag on the author's copy of the post.
229 $owner_remove = ($item["contact-id"] == $i["contact-id"]);
230 $author_copy = $item["origin"];
232 if (($owner_remove && $author_copy) || !$owner_remove) {
236 $tags = explode(',', $i["tag"]);
239 foreach ($tags as $tag) {
240 if (trim($tag) !== trim($xo->body)) {
241 $newtags[] = trim($tag);
245 self::update(['tag' => implode(',', $newtags)], ['id' => $i["id"]]);
248 private static function guid($item, $notify)
250 $guid = notags(trim($item['guid']));
257 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
258 // We add the hash of our own host because our host is the original creator of the post.
259 $prefix_host = get_app()->get_hostname();
263 // We are only storing the post so we create a GUID from the original hostname.
264 if (!empty($item['author-link'])) {
265 $parsed = parse_url($item['author-link']);
266 if (!empty($parsed['host'])) {
267 $prefix_host = $parsed['host'];
271 if (empty($prefix_host) && !empty($item['plink'])) {
272 $parsed = parse_url($item['plink']);
273 if (!empty($parsed['host'])) {
274 $prefix_host = $parsed['host'];
278 if (empty($prefix_host) && !empty($item['uri'])) {
279 $parsed = parse_url($item['uri']);
280 if (!empty($parsed['host'])) {
281 $prefix_host = $parsed['host'];
285 // Is it in the format data@host.tld? - Used for mail contacts
286 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
287 $mailparts = explode('@', $item['author-link']);
288 $prefix_host = array_pop($mailparts);
292 if (!empty($item['plink'])) {
293 $guid = self::guidFromUri($item['plink'], $prefix_host);
294 } elseif (!empty($item['uri'])) {
295 $guid = self::guidFromUri($item['uri'], $prefix_host);
297 $guid = get_guid(32, hash('crc32', $prefix_host));
303 private static function contactId($item)
305 $contact_id = (int)$item["contact-id"];
307 if (!empty($contact_id)) {
310 logger('Missing contact-id. Called by: '.System::callstack(), LOGGER_DEBUG);
312 * First we are looking for a suitable contact that matches with the author of the post
313 * This is done only for comments
315 if ($item['parent-uri'] != $item['uri']) {
316 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
319 // If not present then maybe the owner was found
320 if ($contact_id == 0) {
321 $contact_id = Contact::getIdForURL($item['owner-link'], $item['uid']);
324 // Still missing? Then use the "self" contact of the current user
325 if ($contact_id == 0) {
326 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $item['uid']]);
327 if (DBM::is_result($self)) {
328 $contact_id = $self["id"];
331 logger("Contact-id was missing for post ".$item['guid']." from user id ".$item['uid']." - now set to ".$contact_id, LOGGER_DEBUG);
336 public static function insert($item, $force_parent = false, $notify = false, $dontcache = false)
340 // If it is a posting where users should get notifications, then define it as wall posting
343 $item['type'] = 'wall';
345 $item['network'] = NETWORK_DFRN;
346 $item['protocol'] = PROTOCOL_DFRN;
348 $item['network'] = trim(defaults($item, 'network', NETWORK_PHANTOM));
351 $item['guid'] = self::guid($item, $notify);
352 $item['uri'] = notags(trim(defaults($item, 'uri', item_new_uri($a->get_hostname(), $item['uid'], $item['guid']))));
354 // Store conversation data
355 $item = Conversation::insert($item);
358 * If a Diaspora signature structure was passed in, pull it out of the
359 * item array and set it aside for later storage.
363 if (x($item, 'dsprsig')) {
364 $encoded_signature = $item['dsprsig'];
365 $dsprsig = json_decode(base64_decode($item['dsprsig']));
366 unset($item['dsprsig']);
369 if (!empty($item['diaspora_signed_text'])) {
370 $diaspora_signed_text = $item['diaspora_signed_text'];
371 unset($item['diaspora_signed_text']);
373 $diaspora_signed_text = '';
376 // Converting the plink
377 /// @TODO Check if this is really still needed
378 if ($item['network'] == NETWORK_OSTATUS) {
379 if (isset($item['plink'])) {
380 $item['plink'] = OStatus::convertHref($item['plink']);
381 } elseif (isset($item['uri'])) {
382 $item['plink'] = OStatus::convertHref($item['uri']);
386 if (!empty($item['thr-parent'])) {
387 $item['parent-uri'] = $item['thr-parent'];
390 if (x($item, 'gravity')) {
391 $item['gravity'] = intval($item['gravity']);
392 } elseif ($item['parent-uri'] === $item['uri']) {
393 $item['gravity'] = 0;
394 } elseif (activity_match($item['verb'],ACTIVITY_POST)) {
395 $item['gravity'] = 6;
397 $item['gravity'] = 6; // extensible catchall
400 $item['type'] = defaults($item, 'type', 'remote');
402 $uid = intval($item['uid']);
404 // check for create date and expire time
405 $expire_interval = Config::get('system', 'dbclean-expire-days', 0);
407 $user = dba::selectFirst('user', ['expire'], ['uid' => $uid]);
408 if (DBM::is_result($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
409 $expire_interval = $user['expire'];
412 if (($expire_interval > 0) && !empty($item['created'])) {
413 $expire_date = time() - ($expire_interval * 86400);
414 $created_date = strtotime($item['created']);
415 if ($created_date < $expire_date) {
416 logger('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($item,true), LOGGER_DEBUG);
422 * Do we already have this item?
423 * We have to check several networks since Friendica posts could be repeated
424 * via OStatus (maybe Diasporsa as well)
426 if (in_array($item['network'], [NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS, ""])) {
427 $condition = ["`uri` = ? AND `uid` = ? AND `network` IN (?, ?, ?)",
428 trim($item['uri']), $item['uid'],
429 NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS];
430 $existing = dba::selectFirst('item', ['id', 'network'], $condition);
431 if (DBM::is_result($existing)) {
432 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
434 logger("Item with uri ".$item['uri']." already existed for user ".$uid." with id ".$existing["id"]." target network ".$existing["network"]." - new network: ".$item['network']);
437 return $existing["id"];
441 self::addLanguageInPostopts($item);
443 $item['wall'] = intval(defaults($item, 'wall', 0));
444 $item['extid'] = trim(defaults($item, 'extid', ''));
445 $item['author-name'] = trim(defaults($item, 'author-name', ''));
446 $item['author-link'] = trim(defaults($item, 'author-link', ''));
447 $item['author-avatar'] = trim(defaults($item, 'author-avatar', ''));
448 $item['owner-name'] = trim(defaults($item, 'owner-name', ''));
449 $item['owner-link'] = trim(defaults($item, 'owner-link', ''));
450 $item['owner-avatar'] = trim(defaults($item, 'owner-avatar', ''));
451 $item['received'] = ((x($item, 'received') !== false) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
452 $item['created'] = ((x($item, 'created') !== false) ? DateTimeFormat::utc($item['created']) : $item['received']);
453 $item['edited'] = ((x($item, 'edited') !== false) ? DateTimeFormat::utc($item['edited']) : $item['created']);
454 $item['changed'] = ((x($item, 'changed') !== false) ? DateTimeFormat::utc($item['changed']) : $item['created']);
455 $item['commented'] = ((x($item, 'commented') !== false) ? DateTimeFormat::utc($item['commented']) : $item['created']);
456 $item['title'] = trim(defaults($item, 'title', ''));
457 $item['location'] = trim(defaults($item, 'location', ''));
458 $item['coord'] = trim(defaults($item, 'coord', ''));
459 $item['visible'] = ((x($item, 'visible') !== false) ? intval($item['visible']) : 1);
460 $item['deleted'] = 0;
461 $item['parent-uri'] = trim(defaults($item, 'parent-uri', $item['uri']));
462 $item['verb'] = trim(defaults($item, 'verb', ''));
463 $item['object-type'] = trim(defaults($item, 'object-type', ''));
464 $item['object'] = trim(defaults($item, 'object', ''));
465 $item['target-type'] = trim(defaults($item, 'target-type', ''));
466 $item['target'] = trim(defaults($item, 'target', ''));
467 $item['plink'] = trim(defaults($item, 'plink', ''));
468 $item['allow_cid'] = trim(defaults($item, 'allow_cid', ''));
469 $item['allow_gid'] = trim(defaults($item, 'allow_gid', ''));
470 $item['deny_cid'] = trim(defaults($item, 'deny_cid', ''));
471 $item['deny_gid'] = trim(defaults($item, 'deny_gid', ''));
472 $item['private'] = intval(defaults($item, 'private', 0));
473 $item['bookmark'] = intval(defaults($item, 'bookmark', 0));
474 $item['body'] = trim(defaults($item, 'body', ''));
475 $item['tag'] = trim(defaults($item, 'tag', ''));
476 $item['attach'] = trim(defaults($item, 'attach', ''));
477 $item['app'] = trim(defaults($item, 'app', ''));
478 $item['origin'] = intval(defaults($item, 'origin', 0));
479 $item['postopts'] = trim(defaults($item, 'postopts', ''));
480 $item['resource-id'] = trim(defaults($item, 'resource-id', ''));
481 $item['event-id'] = intval(defaults($item, 'event-id', 0));
482 $item['inform'] = trim(defaults($item, 'inform', ''));
483 $item['file'] = trim(defaults($item, 'file', ''));
485 // When there is no content then we don't post it
486 if ($item['body'].$item['title'] == '') {
490 // Items cannot be stored before they happen ...
491 if ($item['created'] > DateTimeFormat::utcNow()) {
492 $item['created'] = DateTimeFormat::utcNow();
495 // We haven't invented time travel by now.
496 if ($item['edited'] > DateTimeFormat::utcNow()) {
497 $item['edited'] = DateTimeFormat::utcNow();
500 if (($item['author-link'] == "") && ($item['owner-link'] == "")) {
501 logger("Both author-link and owner-link are empty. Called by: " . System::callstack(), LOGGER_DEBUG);
504 $item['plink'] = defaults($item, 'plink', System::baseUrl() . '/display/' . urlencode($item['guid']));
506 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
507 $item["contact-id"] = self::contactId($item);
509 $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
510 'photo' => $item['author-avatar'], 'network' => $item['network']];
512 $item['author-id'] = defaults($item, 'author-id', Contact::getIdForURL($item["author-link"], 0, false, $default));
514 if (Contact::isBlocked($item["author-id"])) {
515 logger('Contact '.$item["author-id"].' is blocked, item '.$item["uri"].' will not be stored');
519 $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
520 'photo' => $item['owner-avatar'], 'network' => $item['network']];
522 $item['owner-id'] = defaults($item, 'owner-id', Contact::getIdForURL($item["owner-link"], 0, false, $default));
524 if (Contact::isBlocked($item["owner-id"])) {
525 logger('Contact '.$item["owner-id"].' is blocked, item '.$item["uri"].' will not be stored');
529 if ($item['network'] == NETWORK_PHANTOM) {
530 logger('Missing network. Called by: '.System::callstack(), LOGGER_DEBUG);
532 $contact = Contact::getDetailsByURL($item['author-link'], $item['uid']);
533 if (!empty($contact['network'])) {
534 $item['network'] = $contact["network"];
536 $item['network'] = NETWORK_DFRN;
538 logger("Set network to " . $item["network"] . " for " . $item["uri"], LOGGER_DEBUG);
541 // Checking if there is already an item with the same guid
542 logger('Checking for an item for user '.$item['uid'].' on network '.$item['network'].' with the guid '.$item['guid'], LOGGER_DEBUG);
543 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
544 if (dba::exists('item', $condition)) {
545 logger('found item with guid '.$item['guid'].' for user '.$item['uid'].' on network '.$item['network'], LOGGER_DEBUG);
549 // Check for hashtags in the body and repair or add hashtag links
550 self::setHashtags($item);
552 $item['thr-parent'] = $item['parent-uri'];
560 if ($item['parent-uri'] === $item['uri']) {
563 $allow_cid = $item['allow_cid'];
564 $allow_gid = $item['allow_gid'];
565 $deny_cid = $item['deny_cid'];
566 $deny_gid = $item['deny_gid'];
567 $notify_type = 'wall-new';
569 // find the parent and snarf the item id and ACLs
570 // and anything else we need to inherit
572 $fields = ['uri', 'parent-uri', 'id', 'deleted',
573 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
574 'wall', 'private', 'forum_mode', 'origin'];
575 $condition = ['uri' => $item['parent-uri'], 'uid' => $item['uid']];
576 $params = ['order' => ['id' => false]];
577 $parent = dba::selectFirst('item', $fields, $condition, $params);
579 if (DBM::is_result($parent)) {
580 // is the new message multi-level threaded?
581 // even though we don't support it now, preserve the info
582 // and re-attach to the conversation parent.
584 if ($parent['uri'] != $parent['parent-uri']) {
585 $item['parent-uri'] = $parent['parent-uri'];
587 $condition = ['uri' => $item['parent-uri'],
588 'parent-uri' => $item['parent-uri'],
589 'uid' => $item['uid']];
590 $params = ['order' => ['id' => false]];
591 $toplevel_parent = dba::selectFirst('item', $fields, $condition, $params);
593 if (DBM::is_result($toplevel_parent)) {
594 $parent = $toplevel_parent;
598 $parent_id = $parent['id'];
599 $parent_deleted = $parent['deleted'];
600 $allow_cid = $parent['allow_cid'];
601 $allow_gid = $parent['allow_gid'];
602 $deny_cid = $parent['deny_cid'];
603 $deny_gid = $parent['deny_gid'];
604 $item['wall'] = $parent['wall'];
605 $notify_type = 'comment-new';
608 * If the parent is private, force privacy for the entire conversation
609 * This differs from the above settings as it subtly allows comments from
610 * email correspondents to be private even if the overall thread is not.
612 if ($parent['private']) {
613 $item['private'] = $parent['private'];
617 * Edge case. We host a public forum that was originally posted to privately.
618 * The original author commented, but as this is a comment, the permissions
619 * weren't fixed up so it will still show the comment as private unless we fix it here.
621 if ((intval($parent['forum_mode']) == 1) && $parent['private']) {
622 $item['private'] = 0;
625 // If its a post from myself then tag the thread as "mention"
626 logger("Checking if parent ".$parent_id." has to be tagged as mention for user ".$item['uid'], LOGGER_DEBUG);
627 $user = dba::selectFirst('user', ['nickname'], ['uid' => $item['uid']]);
628 if (DBM::is_result($user)) {
629 $self = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
630 logger("'myself' is ".$self." for parent ".$parent_id." checking against ".$item['author-link']." and ".$item['owner-link'], LOGGER_DEBUG);
631 if ((normalise_link($item['author-link']) == $self) || (normalise_link($item['owner-link']) == $self)) {
632 dba::update('thread', ['mention' => true], ['iid' => $parent_id]);
633 logger("tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
638 * Allow one to see reply tweets from status.net even when
639 * we don't have or can't see the original post.
642 logger('$force_parent=true, reply converted to top-level post.');
644 $item['parent-uri'] = $item['uri'];
645 $item['gravity'] = 0;
647 logger('item parent '.$item['parent-uri'].' for '.$item['uid'].' was not found - ignoring item');
655 $condition = ["`uri` = ? AND `network` IN (?, ?) AND `uid` = ?",
656 $item['uri'], $item['network'], NETWORK_DFRN, $item['uid']];
657 if (dba::exists('item', $condition)) {
658 logger('duplicated item with the same uri found. '.print_r($item,true));
662 // On Friendica and Diaspora the GUID is unique
663 if (in_array($item['network'], [NETWORK_DFRN, NETWORK_DIASPORA])) {
664 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
665 if (dba::exists('item', $condition)) {
666 logger('duplicated item with the same guid found. '.print_r($item,true));
670 // Check for an existing post with the same content. There seems to be a problem with OStatus.
671 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
672 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
673 if (dba::exists('item', $condition)) {
674 logger('duplicated item with the same body found. '.print_r($item,true));
679 // Is this item available in the global items (with uid=0)?
680 if ($item["uid"] == 0) {
681 $item["global"] = true;
683 // Set the global flag on all items if this was a global item entry
684 dba::update('item', ['global' => true], ['uri' => $item["uri"]]);
686 $item["global"] = dba::exists('item', ['uid' => 0, 'uri' => $item["uri"]]);
690 if (strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid)) {
693 $private = $item['private'];
696 $item["allow_cid"] = $allow_cid;
697 $item["allow_gid"] = $allow_gid;
698 $item["deny_cid"] = $deny_cid;
699 $item["deny_gid"] = $deny_gid;
700 $item["private"] = $private;
701 $item["deleted"] = $parent_deleted;
703 // Fill the cache field
704 put_item_in_cache($item);
707 Addon::callHooks('post_local', $item);
709 Addon::callHooks('post_remote', $item);
712 // This array field is used to trigger some automatic reactions
713 // It is mainly used in the "post_local" hook.
714 unset($item['api_source']);
716 if (x($item, 'cancel')) {
717 logger('post cancelled by addon.');
722 * Check for already added items.
723 * There is a timing issue here that sometimes creates double postings.
724 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
726 if ($item["uid"] == 0) {
727 if (dba::exists('item', ['uri' => trim($item['uri']), 'uid' => 0])) {
728 logger('Global item already stored. URI: '.$item['uri'].' on network '.$item['network'], LOGGER_DEBUG);
733 logger('' . print_r($item,true), LOGGER_DATA);
736 $ret = dba::insert('item', $item);
738 // When the item was successfully stored we fetch the ID of the item.
739 if (DBM::is_result($ret)) {
740 $current_post = dba::lastInsertId();
742 // This can happen - for example - if there are locking timeouts.
745 // Store the data into a spool file so that we can try again later.
747 // At first we restore the Diaspora signature that we removed above.
748 if (isset($encoded_signature)) {
749 $item['dsprsig'] = $encoded_signature;
752 // Now we store the data in the spool directory
753 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
754 $file = 'item-'.round(microtime(true) * 10000).'-'.mt_rand().'.msg';
756 $spoolpath = get_spoolpath();
757 if ($spoolpath != "") {
758 $spool = $spoolpath.'/'.$file;
759 file_put_contents($spool, json_encode($item));
760 logger("Item wasn't stored - Item was spooled into file ".$file, LOGGER_DEBUG);
765 if ($current_post == 0) {
766 // This is one of these error messages that never should occur.
767 logger("couldn't find created item - we better quit now.");
772 // How much entries have we created?
773 // We wouldn't need this query when we could use an unique index - but MySQL has length problems with them.
774 $entries = dba::count('item', ['uri' => $item['uri'], 'uid' => $item['uid'], 'network' => $item['network']]);
777 // There are duplicates. We delete our just created entry.
778 logger('Duplicated post occurred. uri = ' . $item['uri'] . ' uid = ' . $item['uid']);
780 // Yes, we could do a rollback here - but we are having many users with MyISAM.
781 dba::delete('item', ['id' => $current_post]);
784 } elseif ($entries == 0) {
785 // This really should never happen since we quit earlier if there were problems.
786 logger("Something is terribly wrong. We haven't found our created entry.");
791 logger('created item '.$current_post);
792 self::updateContact($item);
794 if (!$parent_id || ($item['parent-uri'] === $item['uri'])) {
795 $parent_id = $current_post;
799 dba::update('item', ['parent' => $parent_id], ['id' => $current_post]);
801 $item['id'] = $current_post;
802 $item['parent'] = $parent_id;
804 // update the commented timestamp on the parent
805 // Only update "commented" if it is really a comment
806 if (($item['verb'] == ACTIVITY_POST) || !Config::get("system", "like_no_comment")) {
807 dba::update('item', ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
809 dba::update('item', ['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
814 * Friendica servers lower than 3.4.3-2 had double encoded the signature ...
815 * We can check for this condition when we decode and encode the stuff again.
817 if (base64_encode(base64_decode(base64_decode($dsprsig->signature))) == base64_decode($dsprsig->signature)) {
818 $dsprsig->signature = base64_decode($dsprsig->signature);
819 logger("Repaired double encoded signature from handle ".$dsprsig->signer, LOGGER_DEBUG);
822 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $dsprsig->signed_text,
823 'signature' => $dsprsig->signature, 'signer' => $dsprsig->signer]);
826 if (!empty($diaspora_signed_text)) {
827 // Formerly we stored the signed text, the signature and the author in different fields.
828 // We now store the raw data so that we are more flexible.
829 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $diaspora_signed_text]);
832 $deleted = self::tagDeliver($item['uid'], $current_post);
835 * current post can be deleted if is for a community page and no mention are
838 if (!$deleted && !$dontcache) {
839 $posted_item = dba::selectFirst('item', [], ['id' => $current_post]);
840 if (DBM::is_result($posted_item)) {
842 Addon::callHooks('post_local_end', $posted_item);
844 Addon::callHooks('post_remote_end', $posted_item);
847 logger('new item not found in DB, id ' . $current_post);
851 if ($item['parent-uri'] === $item['uri']) {
852 self::addThread($current_post);
854 self::updateThread($parent_id);
860 * Due to deadlock issues with the "term" table we are doing these steps after the commit.
861 * This is not perfect - but a workable solution until we found the reason for the problem.
863 Term::insertFromTagFieldByItemId($current_post);
864 Term::insertFromFileFieldByItemId($current_post);
866 if ($item['parent-uri'] === $item['uri']) {
867 self::addShadow($current_post);
869 self::addShadowPost($current_post);
872 check_user_notification($current_post);
875 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "Notifier", $notify_type, $current_post);
876 } elseif (!empty($parent) && $parent['origin']) {
877 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "Notifier", "comment-import", $current_post);
880 return $current_post;
884 * @brief Distributes public items to the receivers
886 * @param integer $itemid Item ID that should be added
887 * @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
889 public static function distribute($itemid, $signed_text = '')
891 $condition = ["`id` IN (SELECT `parent` FROM `item` WHERE `id` = ?)", $itemid];
892 $parent = dba::selectFirst('item', ['owner-id'], $condition);
893 if (!DBM::is_result($parent)) {
897 // Only distribute public items from native networks
898 $condition = ['id' => $itemid, 'uid' => 0,
899 'network' => [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""],
900 'visible' => true, 'deleted' => false, 'moderated' => false, 'private' => false];
901 $item = dba::selectFirst('item', [], ['id' => $itemid]);
902 if (!DBM::is_result($item)) {
907 unset($item['parent']);
908 unset($item['mention']);
909 unset($item['wall']);
910 unset($item['origin']);
911 unset($item['starred']);
912 unset($item['rendered-hash']);
913 unset($item['rendered-html']);
917 $condition = ["`nurl` IN (SELECT `nurl` FROM `contact` WHERE `id` = ?) AND `uid` != 0 AND NOT `blocked` AND `rel` IN (?, ?)",
918 $parent['owner-id'], CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
919 $contacts = dba::select('contact', ['uid'], $condition);
920 while ($contact = dba::fetch($contacts)) {
921 $users[$contact['uid']] = $contact['uid'];
926 if ($item['uri'] != $item['parent-uri']) {
927 $parents = dba::select('item', ['uid', 'origin'], ["`uri` = ? AND `uid` != 0", $item['parent-uri']]);
928 while ($parent = dba::fetch($parents)) {
929 $users[$parent['uid']] = $parent['uid'];
930 if ($parent['origin'] && !$item['origin']) {
931 $origin_uid = $parent['uid'];
936 foreach ($users as $uid) {
937 if ($origin_uid == $uid) {
938 $item['diaspora_signed_text'] = $signed_text;
940 self::storeForUser($itemid, $item, $uid);
945 * @brief Store public items for the receivers
947 * @param integer $itemid Item ID that should be added
948 * @param array $item The item entry that will be stored
949 * @param integer $uid The user that will receive the item entry
951 private static function storeForUser($itemid, $item, $uid)
956 if ($item['uri'] == $item['parent-uri']) {
957 $item['contact-id'] = Contact::getIdForURL($item['owner-link'], $uid);
959 $item['contact-id'] = Contact::getIdForURL($item['author-link'], $uid);
962 if (empty($item['contact-id'])) {
963 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
964 if (!DBM::is_result($self)) {
967 $item['contact-id'] = $self['id'];
970 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
971 $item['type'] = 'remote-comment';
972 } elseif ($item['type'] == 'wall') {
973 $item['type'] = 'remote';
976 /// @todo Handling of "event-id"
979 if ($item['uri'] == $item['parent-uri']) {
980 $contact = dba::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
981 if (DBM::is_result($contact)) {
982 $notify = self::isRemoteSelf($contact, $item);
986 $distributed = self::insert($item, false, $notify, true);
989 logger("Distributed public item " . $itemid . " for user " . $uid . " wasn't stored", LOGGER_DEBUG);
991 logger("Distributed public item " . $itemid . " for user " . $uid . " with id " . $distributed, LOGGER_DEBUG);
996 * @brief Add a shadow entry for a given item id that is a thread starter
998 * We store every public item entry additionally with the user id "0".
999 * This is used for the community page and for the search.
1000 * It is planned that in the future we will store public item entries only once.
1002 * @param integer $itemid Item ID that should be added
1004 public static function addShadow($itemid)
1006 $fields = ['uid', 'private', 'moderated', 'visible', 'deleted', 'network'];
1007 $condition = ['id' => $itemid, 'parent' => [0, $itemid]];
1008 $item = dba::selectFirst('item', $fields, $condition);
1010 if (!DBM::is_result($item)) {
1014 // is it already a copy?
1015 if (($itemid == 0) || ($item['uid'] == 0)) {
1019 // Is it a visible public post?
1020 if (!$item["visible"] || $item["deleted"] || $item["moderated"] || $item["private"]) {
1024 // is it an entry from a connector? Only add an entry for natively connected networks
1025 if (!in_array($item["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
1029 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1031 if (DBM::is_result($item) && ($item["allow_cid"] == '') && ($item["allow_gid"] == '') &&
1032 ($item["deny_cid"] == '') && ($item["deny_gid"] == '')) {
1034 if (!dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
1035 // Preparing public shadow (removing user specific data)
1038 unset($item['parent']);
1039 unset($item['wall']);
1040 unset($item['mention']);
1041 unset($item['origin']);
1042 unset($item['starred']);
1043 unset($item['rendered-hash']);
1044 unset($item['rendered-html']);
1045 if ($item['uri'] == $item['parent-uri']) {
1046 $item['contact-id'] = Contact::getIdForURL($item['owner-link']);
1048 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1051 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1052 $item['type'] = 'remote-comment';
1053 } elseif ($item['type'] == 'wall') {
1054 $item['type'] = 'remote';
1057 $public_shadow = self::insert($item, false, false, true);
1059 logger("Stored public shadow for thread ".$itemid." under id ".$public_shadow, LOGGER_DEBUG);
1065 * @brief Add a shadow entry for a given item id that is a comment
1067 * This function does the same like the function above - but for comments
1069 * @param integer $itemid Item ID that should be added
1071 public static function addShadowPost($itemid)
1073 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1074 if (!DBM::is_result($item)) {
1078 // Is it a toplevel post?
1079 if ($item['id'] == $item['parent']) {
1080 self::addShadow($itemid);
1084 // Is this a shadow entry?
1085 if ($item['uid'] == 0)
1088 // Is there a shadow parent?
1089 if (!dba::exists('item', ['uri' => $item['parent-uri'], 'uid' => 0])) {
1093 // Is there already a shadow entry?
1094 if (dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
1098 // Save "origin" and "parent" state
1099 $origin = $item['origin'];
1100 $parent = $item['parent'];
1102 // Preparing public shadow (removing user specific data)
1105 unset($item['parent']);
1106 unset($item['wall']);
1107 unset($item['mention']);
1108 unset($item['origin']);
1109 unset($item['starred']);
1110 unset($item['rendered-hash']);
1111 unset($item['rendered-html']);
1112 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1114 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1115 $item['type'] = 'remote-comment';
1116 } elseif ($item['type'] == 'wall') {
1117 $item['type'] = 'remote';
1120 $public_shadow = self::insert($item, false, false, true);
1122 logger("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, LOGGER_DEBUG);
1124 // If this was a comment to a Diaspora post we don't get our comment back.
1125 // This means that we have to distribute the comment by ourselves.
1127 if (dba::exists('item', ['id' => $parent, 'network' => NETWORK_DIASPORA])) {
1128 self::distribute($public_shadow);
1134 * Adds a "lang" specification in a "postopts" element of given $arr,
1135 * if possible and not already present.
1136 * Expects "body" element to exist in $arr.
1138 private static function addLanguageInPostopts(&$item)
1140 if (!empty($item['postopts'])) {
1141 if (strstr($item['postopts'], 'lang=')) {
1145 $postopts = $item['postopts'];
1150 $naked_body = Text\BBCode::toPlaintext($item['body'], false);
1152 $languages = (new Text_LanguageDetect())->detect($naked_body, 3);
1154 if (sizeof($languages) > 0) {
1155 if ($postopts != '') {
1156 $postopts .= '&'; // arbitrary separator, to be reviewed
1159 $postopts .= 'lang=';
1162 foreach ($languages as $language => $score) {
1163 $postopts .= $sep . $language . ";" . $score;
1166 $item['postopts'] = $postopts;
1171 * @brief Creates an unique guid out of a given uri
1173 * @param string $uri uri of an item entry
1174 * @param string $host hostname for the GUID prefix
1175 * @return string unique guid
1177 public static function guidFromUri($uri, $host)
1179 // Our regular guid routine is using this kind of prefix as well
1180 // We have to avoid that different routines could accidentally create the same value
1181 $parsed = parse_url($uri);
1183 // We use a hash of the hostname as prefix for the guid
1184 $guid_prefix = hash("crc32", $host);
1186 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1187 unset($parsed["scheme"]);
1189 // Glue it together to be able to make a hash from it
1190 $host_id = implode("/", $parsed);
1192 // We could use any hash algorithm since it isn't a security issue
1193 $host_hash = hash("ripemd128", $host_id);
1195 return $guid_prefix.$host_hash;
1199 * @brief Set "success_update" and "last-item" to the date of the last time we heard from this contact
1201 * This can be used to filter for inactive contacts.
1202 * Only do this for public postings to avoid privacy problems, since poco data is public.
1203 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1205 * @param array $arr Contains the just posted item record
1207 private static function updateContact($arr)
1209 // Unarchive the author
1210 $contact = dba::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1211 if (DBM::is_result($contact)) {
1212 Contact::unmarkForArchival($contact);
1215 // Unarchive the contact if it's not our own contact
1216 $contact = dba::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
1217 if (DBM::is_result($contact)) {
1218 Contact::unmarkForArchival($contact);
1221 $update = (!$arr['private'] && (($arr["author-link"] === $arr["owner-link"]) || ($arr["parent-uri"] === $arr["uri"])));
1223 // Is it a forum? Then we don't care about the rules from above
1224 if (!$update && ($arr["network"] == NETWORK_DFRN) && ($arr["parent-uri"] === $arr["uri"])) {
1225 if (dba::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
1231 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1232 ['id' => $arr['contact-id']]);
1234 // Now do the same for the system wide contacts with uid=0
1235 if (!$arr['private']) {
1236 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1237 ['id' => $arr['owner-id']]);
1239 if ($arr['owner-id'] != $arr['author-id']) {
1240 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1241 ['id' => $arr['author-id']]);
1246 private static function setHashtags(&$item)
1249 $tags = get_tags($item["body"]);
1252 if (!count($tags)) {
1256 // This sorting is important when there are hashtags that are part of other hashtags
1257 // Otherwise there could be problems with hashtags like #test and #test2
1260 $URLSearchString = "^\[\]";
1262 // All hashtags should point to the home server if "local_tags" is activated
1263 if (Config::get('system', 'local_tags')) {
1264 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1265 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["body"]);
1267 $item["tag"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1268 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["tag"]);
1271 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
1272 $item["body"] = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1274 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
1277 $item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
1279 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
1282 $item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
1284 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
1287 // Repair recursive urls
1288 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1289 "#$2", $item["body"]);
1291 foreach ($tags as $tag) {
1292 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=')) {
1296 $basetag = str_replace('_',' ',substr($tag,1));
1298 $newtag = '#[url=' . System::baseUrl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
1300 $item["body"] = str_replace($tag, $newtag, $item["body"]);
1302 if (!stristr($item["tag"], "/search?tag=" . $basetag . "]" . $basetag . "[/url]")) {
1303 if (strlen($item["tag"])) {
1304 $item["tag"] = ','.$item["tag"];
1306 $item["tag"] = $newtag.$item["tag"];
1310 // Convert back the masked hashtags
1311 $item["body"] = str_replace("#", "#", $item["body"]);
1314 public static function getGuidById($id)
1316 $item = dba::selectFirst('item', ['guid'], ['id' => $id]);
1317 if (DBM::is_result($item)) {
1318 return $item['guid'];
1324 public static function getIdAndNickByGuid($guid, $uid = 0)
1330 $uid == local_user();
1333 // Does the given user have this item?
1335 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1336 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1337 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1338 AND `item`.`guid` = ? AND `item`.`uid` = ?", $guid, $uid);
1339 if (DBM::is_result($item)) {
1341 $nick = $item["nickname"];
1345 // Or is it anywhere on the server?
1347 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1348 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1349 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1350 AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = ''
1351 AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = ''
1352 AND NOT `item`.`private` AND `item`.`wall`
1353 AND `item`.`guid` = ?", $guid);
1354 if (DBM::is_result($item)) {
1356 $nick = $item["nickname"];
1359 return ["nick" => $nick, "id" => $id];
1363 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1365 * @param int $item_id
1366 * @return bool true if item was deleted, else false
1368 private static function tagDeliver($uid, $item_id)
1372 $user = dba::selectFirst('user', [], ['uid' => $uid]);
1373 if (!DBM::is_result($user)) {
1377 $community_page = (($user['page-flags'] == PAGE_COMMUNITY) ? true : false);
1378 $prvgroup = (($user['page-flags'] == PAGE_PRVGROUP) ? true : false);
1380 $item = dba::selectFirst('item', [], ['id' => $item_id]);
1381 if (!DBM::is_result($item)) {
1385 $link = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
1388 * Diaspora uses their own hardwired link URL in @-tags
1389 * instead of the one we supply with webfinger
1391 $dlink = normalise_link(System::baseUrl() . '/u/' . $user['nickname']);
1393 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
1395 foreach ($matches as $mtch) {
1396 if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) {
1398 logger('mention found: ' . $mtch[2]);
1404 if (($community_page || $prvgroup) &&
1405 !$item['wall'] && !$item['origin'] && ($item['id'] == $item['parent'])) {
1406 // mmh.. no mention.. community page or private group... no wall.. no origin.. top-post (not a comment)
1408 logger("no-mention top-level post to community or private group. delete.");
1409 dba::delete('item', ['id' => $item_id]);
1415 $arr = ['item' => $item, 'user' => $user];
1417 Addon::callHooks('tagged', $arr);
1419 if (!$community_page && !$prvgroup) {
1424 * tgroup delivery - setup a second delivery chain
1425 * prevent delivery looping - only proceed
1426 * if the message originated elsewhere and is a top-level post
1428 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
1432 // now change this copy of the post to a forum head message and deliver to all the tgroup members
1433 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
1434 if (!DBM::is_result($self)) {
1438 $owner_id = Contact::getIdForURL($self['url']);
1440 // also reset all the privacy bits to the forum default permissions
1442 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? 1 : 0;
1444 $forum_mode = ($prvgroup ? 2 : 1);
1446 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
1447 'owner-id' => $owner_id, 'owner-name' => $self['name'], 'owner-link' => $self['url'],
1448 'owner-avatar' => $self['thumb'], 'private' => $private, 'allow_cid' => $user['allow_cid'],
1449 'allow_gid' => $user['allow_gid'], 'deny_cid' => $user['deny_cid'], 'deny_gid' => $user['deny_gid']];
1450 dba::update('item', $fields, ['id' => $item_id]);
1452 self::updateThread($item_id);
1454 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', 'tgroup', $item_id);
1457 public static function isRemoteSelf($contact, &$datarray)
1461 if (!$contact['remote_self']) {
1465 // Prevent the forwarding of posts that are forwarded
1466 if ($datarray["extid"] == NETWORK_DFRN) {
1467 logger('Already forwarded', LOGGER_DEBUG);
1471 // Prevent to forward already forwarded posts
1472 if ($datarray["app"] == $a->get_hostname()) {
1473 logger('Already forwarded (second test)', LOGGER_DEBUG);
1477 // Only forward posts
1478 if ($datarray["verb"] != ACTIVITY_POST) {
1479 logger('No post', LOGGER_DEBUG);
1483 if (($contact['network'] != NETWORK_FEED) && $datarray['private']) {
1484 logger('Not public', LOGGER_DEBUG);
1488 $datarray2 = $datarray;
1489 logger('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), LOGGER_DEBUG);
1490 if ($contact['remote_self'] == 2) {
1491 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
1492 ['uid' => $contact['uid'], 'self' => true]);
1493 if (DBM::is_result($self)) {
1494 $datarray['contact-id'] = $self["id"];
1496 $datarray['owner-name'] = $self["name"];
1497 $datarray['owner-link'] = $self["url"];
1498 $datarray['owner-avatar'] = $self["thumb"];
1500 $datarray['author-name'] = $datarray['owner-name'];
1501 $datarray['author-link'] = $datarray['owner-link'];
1502 $datarray['author-avatar'] = $datarray['owner-avatar'];
1504 unset($datarray['created']);
1505 unset($datarray['edited']);
1507 unset($datarray['network']);
1508 unset($datarray['owner-id']);
1509 unset($datarray['author-id']);
1512 if ($contact['network'] != NETWORK_FEED) {
1513 $datarray["guid"] = get_guid(32);
1514 unset($datarray["plink"]);
1515 $datarray["uri"] = item_new_uri($a->get_hostname(), $contact['uid'], $datarray["guid"]);
1516 $datarray["parent-uri"] = $datarray["uri"];
1517 $datarray["thr-parent"] = $datarray["uri"];
1518 $datarray["extid"] = NETWORK_DFRN;
1519 $urlpart = parse_url($datarray2['author-link']);
1520 $datarray["app"] = $urlpart["host"];
1522 $datarray['private'] = 0;
1526 if ($contact['network'] != NETWORK_FEED) {
1527 // Store the original post
1528 $result = self::insert($datarray2, false, false);
1529 logger('remote-self post original item - Contact '.$contact['url'].' return '.$result.' Item '.print_r($datarray2, true), LOGGER_DEBUG);
1531 $datarray["app"] = "Feed";
1535 // Trigger automatic reactions for addons
1536 $datarray['api_source'] = true;
1538 // We have to tell the hooks who we are - this really should be improved
1539 $_SESSION["authenticated"] = true;
1540 $_SESSION["uid"] = $contact['uid'];
1549 * @param array $item
1553 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
1555 if (Config::get('system', 'disable_embedded')) {
1559 logger('check for photos', LOGGER_DEBUG);
1560 $site = substr(System::baseUrl(), strpos(System::baseUrl(), '://'));
1565 $img_start = strpos($orig_body, '[img');
1566 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
1567 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
1569 while (($img_st_close !== false) && ($img_len !== false)) {
1570 $img_st_close++; // make it point to AFTER the closing bracket
1571 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
1573 logger('found photo ' . $image, LOGGER_DEBUG);
1575 if (stristr($image, $site . '/photo/')) {
1576 // Only embed locally hosted photos
1578 $i = basename($image);
1579 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
1580 $x = strpos($i, '-');
1583 $res = substr($i, $x + 1);
1584 $i = substr($i, 0, $x);
1585 $fields = ['data', 'type', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
1586 $photo = dba::selectFirst('photo', $fields, ['resource-id' => $i, 'scale' => $res, 'uid' => $uid]);
1587 if (DBM::is_result($photo)) {
1589 * Check to see if we should replace this photo link with an embedded image
1590 * 1. No need to do so if the photo is public
1591 * 2. If there's a contact-id provided, see if they're in the access list
1592 * for the photo. If so, embed it.
1593 * 3. Otherwise, if we have an item, see if the item permissions match the photo
1594 * permissions, regardless of order but first check to see if they're an exact
1595 * match to save some processing overhead.
1597 if (self::hasPermissions($photo)) {
1599 $recips = self::enumeratePermissions($photo);
1600 if (in_array($cid, $recips)) {
1604 if (self::samePermissions($item, $photo)) {
1610 $data = $photo['data'];
1611 $type = $photo['type'];
1613 // If a custom width and height were specified, apply before embedding
1614 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
1615 logger('scaling photo', LOGGER_DEBUG);
1617 $width = intval($match[1]);
1618 $height = intval($match[2]);
1620 $Image = new Image($data, $type);
1621 if ($Image->isValid()) {
1622 $Image->scaleDown(max($width, $height));
1623 $data = $Image->asString();
1624 $type = $Image->getType();
1628 logger('replacing photo', LOGGER_DEBUG);
1629 $image = 'data:' . $type . ';base64,' . base64_encode($data);
1630 logger('replaced: ' . $image, LOGGER_DATA);
1636 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
1637 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
1638 if ($orig_body === false) {
1642 $img_start = strpos($orig_body, '[img');
1643 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
1644 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
1647 $new_body = $new_body . $orig_body;
1652 private static function hasPermissions($obj)
1656 x($obj, 'allow_cid')
1658 x($obj, 'allow_gid')
1667 private static function samePermissions($obj1, $obj2)
1669 // first part is easy. Check that these are exactly the same.
1670 if (($obj1['allow_cid'] == $obj2['allow_cid'])
1671 && ($obj1['allow_gid'] == $obj2['allow_gid'])
1672 && ($obj1['deny_cid'] == $obj2['deny_cid'])
1673 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
1677 // This is harder. Parse all the permissions and compare the resulting set.
1678 $recipients1 = self::enumeratePermissions($obj1);
1679 $recipients2 = self::enumeratePermissions($obj2);
1683 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
1684 return ($recipients1 == $recipients2);
1687 // returns an array of contact-ids that are allowed to see this object
1688 private static function enumeratePermissions($obj)
1690 $allow_people = expand_acl($obj['allow_cid']);
1691 $allow_groups = Group::expand(expand_acl($obj['allow_gid']));
1692 $deny_people = expand_acl($obj['deny_cid']);
1693 $deny_groups = Group::expand(expand_acl($obj['deny_gid']));
1694 $recipients = array_unique(array_merge($allow_people, $allow_groups));
1695 $deny = array_unique(array_merge($deny_people, $deny_groups));
1696 $recipients = array_diff($recipients, $deny);
1700 public static function getFeedTags($item)
1704 $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
1706 for ($x = 0; $x < $cnt; $x ++) {
1707 if ($matches[1][$x]) {
1708 $ret[$matches[2][$x]] = ['#', $matches[1][$x], $matches[2][$x]];
1713 $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
1715 for ($x = 0; $x < $cnt; $x ++) {
1716 if ($matches[1][$x]) {
1717 $ret[] = ['@', $matches[1][$x], $matches[2][$x]];
1724 public static function expire($uid, $days, $network = "", $force = false)
1726 if (!$uid || ($days < 1)) {
1731 * $expire_network_only = save your own wall posts
1732 * and just expire conversations started by others
1734 $expire_network_only = PConfig::get($uid,'expire', 'network_only');
1735 $sql_extra = (intval($expire_network_only) ? " AND wall = 0 " : "");
1737 if ($network != "") {
1738 $sql_extra .= sprintf(" AND network = '%s' ", dbesc($network));
1741 * There is an index "uid_network_received" but not "uid_network_created"
1742 * This avoids the creation of another index just for one purpose.
1743 * And it doesn't really matter wether to look at "received" or "created"
1745 $range = "AND `received` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
1747 $range = "AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
1750 $r = q("SELECT `file`, `resource-id`, `starred`, `type`, `id` FROM `item`
1751 WHERE `uid` = %d $range
1759 if (!DBM::is_result($r)) {
1763 $expire_items = PConfig::get($uid, 'expire', 'items', 1);
1765 // Forcing expiring of items - but not notes and marked items
1767 $expire_items = true;
1770 $expire_notes = PConfig::get($uid, 'expire', 'notes', 1);
1771 $expire_starred = PConfig::get($uid, 'expire', 'starred', 1);
1772 $expire_photos = PConfig::get($uid, 'expire', 'photos', 0);
1774 logger('User '.$uid.': expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
1776 foreach ($r as $item) {
1778 // don't expire filed items
1780 if (strpos($item['file'],'[') !== false) {
1784 // Only expire posts, not photos and photo comments
1786 if ($expire_photos == 0 && strlen($item['resource-id'])) {
1788 } elseif ($expire_starred == 0 && intval($item['starred'])) {
1790 } elseif ($expire_notes == 0 && $item['type'] == 'note') {
1792 } elseif ($expire_items == 0 && $item['type'] != 'note') {
1796 self::deleteById($item['id'], PRIORITY_LOW);
1800 public static function firstPostDate($uid, $wall = false)
1802 $condition = ['uid' => $uid, 'wall' => $wall, 'deleted' => false, 'visible' => true, 'moderated' => false];
1803 $params = ['order' => ['created' => false]];
1804 $thread = dba::selectFirst('thread', ['created'], $condition, $params);
1805 if (DBM::is_result($thread)) {
1806 return substr(DateTimeFormat::local($thread['created']), 0, 10);
1812 * @brief add/remove activity to an item
1814 * Toggle activities as like,dislike,attend of an item
1816 * @param string $item_id
1817 * @param string $verb
1818 * Activity verb. One of
1819 * like, unlike, dislike, undislike, attendyes, unattendyes,
1820 * attendno, unattendno, attendmaybe, unattendmaybe
1821 * @hook 'post_local_end'
1823 * 'post_id' => ID of posted item
1825 public static function performLike($item_id, $verb)
1827 if (!local_user() && !remote_user()) {
1834 $bodyverb = L10n::t('%1$s likes %2$s\'s %3$s');
1835 $activity = ACTIVITY_LIKE;
1839 $bodyverb = L10n::t('%1$s doesn\'t like %2$s\'s %3$s');
1840 $activity = ACTIVITY_DISLIKE;
1844 $bodyverb = L10n::t('%1$s is attending %2$s\'s %3$s');
1845 $activity = ACTIVITY_ATTEND;
1849 $bodyverb = L10n::t('%1$s is not attending %2$s\'s %3$s');
1850 $activity = ACTIVITY_ATTENDNO;
1853 case 'unattendmaybe':
1854 $bodyverb = L10n::t('%1$s may attend %2$s\'s %3$s');
1855 $activity = ACTIVITY_ATTENDMAYBE;
1858 logger('like: unknown verb ' . $verb . ' for item ' . $item_id);
1862 // Enable activity toggling instead of on/off
1863 $event_verb_flag = $activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE;
1865 logger('like: verb ' . $verb . ' item ' . $item_id);
1867 $item = dba::selectFirst('item', [], ['`id` = ? OR `uri` = ?', $item_id, $item_id]);
1868 if (!DBM::is_result($item)) {
1869 logger('like: unknown item ' . $item_id);
1873 $uid = $item['uid'];
1874 if (($uid == 0) && local_user()) {
1875 $uid = local_user();
1878 if (!can_write_wall($uid)) {
1879 logger('like: unable to write on wall ' . $uid);
1883 // Retrieves the local post owner
1884 $owner_self_contact = dba::selectFirst('contact', [], ['uid' => $uid, 'self' => true]);
1885 if (!DBM::is_result($owner_self_contact)) {
1886 logger('like: unknown owner ' . $uid);
1890 // Retrieve the current logged in user's public contact
1891 $author_id = public_contact();
1893 $author_contact = dba::selectFirst('contact', [], ['id' => $author_id]);
1894 if (!DBM::is_result($author_contact)) {
1895 logger('like: unknown author ' . $author_id);
1899 // Contact-id is the uid-dependant author contact
1900 if (local_user() == $uid) {
1901 $item_contact_id = $owner_self_contact['id'];
1902 $item_contact = $owner_self_contact;
1904 $item_contact_id = Contact::getIdForURL($author_contact['url'], $uid, true);
1905 $item_contact = dba::selectFirst('contact', [], ['id' => $item_contact_id]);
1906 if (!DBM::is_result($item_contact)) {
1907 logger('like: unknown item contact ' . $item_contact_id);
1912 // Look for an existing verb row
1913 // event participation are essentially radio toggles. If you make a subsequent choice,
1914 // we need to eradicate your first choice.
1915 if ($event_verb_flag) {
1916 $verbs = "'" . dbesc(ACTIVITY_ATTEND) . "', '" . dbesc(ACTIVITY_ATTENDNO) . "', '" . dbesc(ACTIVITY_ATTENDMAYBE) . "'";
1918 $verbs = "'".dbesc($activity)."'";
1921 /// @todo This query is expected to be a performance eater due to the "OR" - it has to be changed totally
1922 $existing_like = q("SELECT `id`, `guid`, `verb` FROM `item`
1923 WHERE `verb` IN ($verbs)
1925 AND `author-id` = %d
1927 AND (`parent` = '%s' OR `parent-uri` = '%s' OR `thr-parent` = '%s')
1929 intval($author_contact['id']),
1930 intval($item['uid']),
1931 dbesc($item_id), dbesc($item_id), dbesc($item['uri'])
1934 // If it exists, mark it as deleted
1935 if (DBM::is_result($existing_like)) {
1936 $like_item = $existing_like[0];
1938 // Already voted, undo it
1939 $fields = ['deleted' => true, 'unseen' => true, 'changed' => DateTimeFormat::utcNow()];
1940 dba::update('item', $fields, ['id' => $like_item['id']]);
1942 // Clean up the Diaspora signatures for this like
1943 // Go ahead and do it even if Diaspora support is disabled. We still want to clean up
1944 // if it had been enabled in the past
1945 dba::delete('sign', ['iid' => $like_item['id']]);
1947 $like_item_id = $like_item['id'];
1948 Worker::add(PRIORITY_HIGH, "Notifier", "like", $like_item_id);
1950 if (!$event_verb_flag || $like_item['verb'] == $activity) {
1955 // Verb is "un-something", just trying to delete existing entries
1956 if (strpos($verb, 'un') === 0) {
1960 // Else or if event verb different from existing row, create a new item row
1961 $post_type = (($item['resource-id']) ? L10n::t('photo') : L10n::t('status'));
1962 if ($item['object-type'] === ACTIVITY_OBJ_EVENT) {
1963 $post_type = L10n::t('event');
1965 $objtype = $item['resource-id'] ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE ;
1966 $link = xmlify('<link rel="alternate" type="text/html" href="' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . '" />' . "\n") ;
1967 $body = $item['body'];
1972 <type>$objtype</type>
1974 <id>{$item['uri']}</id>
1977 <content>$body</content>
1981 $ulink = '[url=' . $author_contact['url'] . ']' . $author_contact['name'] . '[/url]';
1982 $alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
1983 $plink = '[url=' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
1986 'guid' => get_guid(32),
1987 'uri' => item_new_uri(self::getApp()->get_hostname(), $item['uid']),
1988 'uid' => $item['uid'],
1989 'contact-id' => $item_contact_id,
1990 'type' => 'activity',
1991 'wall' => $item['wall'],
1993 'gravity' => GRAVITY_LIKE,
1994 'parent' => $item['id'],
1995 'parent-uri' => $item['uri'],
1996 'thr-parent' => $item['uri'],
1997 'owner-id' => $item['owner-id'],
1998 'owner-name' => $item['owner-name'],
1999 'owner-link' => $item['owner-link'],
2000 'owner-avatar' => $item['owner-avatar'],
2001 'author-id' => $author_contact['id'],
2002 'author-name' => $author_contact['name'],
2003 'author-link' => $author_contact['url'],
2004 'author-avatar' => $author_contact['thumb'],
2005 'body' => sprintf($bodyverb, $ulink, $alink, $plink),
2006 'verb' => $activity,
2007 'object-type' => $objtype,
2009 'allow_cid' => $item['allow_cid'],
2010 'allow_gid' => $item['allow_gid'],
2011 'deny_cid' => $item['deny_cid'],
2012 'deny_gid' => $item['deny_gid'],
2017 $new_item_id = self::insert($new_item);
2019 // If the parent item isn't visible then set it to visible
2020 if (!$item['visible']) {
2021 self::update(['visible' => true], ['id' => $item['id']]);
2024 // Save the author information for the like in case we need to relay to Diaspora
2025 Diaspora::storeLikeSignature($item_contact, $new_item_id);
2027 $new_item['id'] = $new_item_id;
2029 Addon::callHooks('post_local_end', $new_item);
2031 Worker::add(PRIORITY_HIGH, "Notifier", "like", $new_item_id);
2036 private static function addThread($itemid, $onlyshadow = false)
2038 $fields = ['uid', 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private', 'pubmail',
2039 'moderated', 'visible', 'spam', 'starred', 'bookmark', 'contact-id',
2040 'deleted', 'origin', 'forum_mode', 'mention', 'network', 'author-id', 'owner-id'];
2041 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
2042 $item = dba::selectFirst('item', $fields, $condition);
2044 if (!DBM::is_result($item)) {
2048 $item['iid'] = $itemid;
2051 $result = dba::insert('thread', $item);
2053 logger("Add thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
2057 private static function updateThread($itemid, $setmention = false)
2059 $fields = ['uid', 'guid', 'title', 'body', 'created', 'edited', 'commented', 'received', 'changed',
2060 'wall', 'private', 'pubmail', 'moderated', 'visible', 'spam', 'starred', 'bookmark', 'contact-id',
2061 'deleted', 'origin', 'forum_mode', 'network', 'author-id', 'owner-id', 'rendered-html', 'rendered-hash'];
2062 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
2064 $item = dba::selectFirst('item', $fields, $condition);
2065 if (!DBM::is_result($item)) {
2070 $item["mention"] = 1;
2077 foreach ($item as $field => $data) {
2078 if (!in_array($field, ["guid", "title", "body", "rendered-html", "rendered-hash"])) {
2079 $fields[$field] = $data;
2083 $result = dba::update('thread', $fields, ['iid' => $itemid]);
2085 logger("Update thread for item ".$itemid." - guid ".$item["guid"]." - ".(int)$result, LOGGER_DEBUG);
2087 // Updating a shadow item entry
2088 $items = dba::selectFirst('item', ['id'], ['guid' => $item['guid'], 'uid' => 0]);
2090 if (!DBM::is_result($items)) {
2094 $fields = ['title' => $item['title'], 'body' => $item['body'],
2095 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
2096 $result = dba::update('item', $fields, ['id' => $items['id']]);
2098 logger("Updating public shadow for post ".$items["id"]." - guid ".$item["guid"]." Result: ".print_r($result, true), LOGGER_DEBUG);
2101 private static function deleteThread($itemid, $itemuri = "")
2103 $item = dba::selectFirst('thread', ['uid'], ['iid' => $itemid]);
2104 if (!DBM::is_result($item)) {
2105 logger('No thread found for id '.$itemid, LOGGER_DEBUG);
2109 // Using dba::delete at this time could delete the associated item entries
2110 $result = dba::e("DELETE FROM `thread` WHERE `iid` = ?", $itemid);
2112 logger("deleteThread: Deleted thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
2114 if ($itemuri != "") {
2115 $condition = ["`uri` = ? AND NOT `deleted` AND NOT (`uid` IN (?, 0))", $itemuri, $item["uid"]];
2116 if (!dba::exists('item', $condition)) {
2117 dba::delete('item', ['uri' => $itemuri, 'uid' => 0]);
2118 logger("deleteThread: Deleted shadow for item ".$itemuri, LOGGER_DEBUG);