+ if ($item['origin']) {
+ Worker::add(PRIORITY_HIGH, "Notifier", 'edit_post', $item['id']);
+ }
+ }
+
+ return $rows;
+ }
+
+ /**
+ * @brief Delete an item and notify others about it - if it was ours
+ *
+ * @param array $condition The condition for finding the item entries
+ * @param integer $priority Priority for the notification
+ */
+ public static function delete($condition, $priority = PRIORITY_HIGH)
+ {
+ $items = dba::select('item', ['id'], $condition);
+ while ($item = dba::fetch($items)) {
+ self::deleteById($item['id'], $priority);
+ }
+ dba::close($items);
+ }
+
+ /**
+ * @brief Delete an item and notify others about it - if it was ours
+ *
+ * @param integer $item_id Item ID that should be delete
+ * @param integer $priority Priority for the notification
+ *
+ * @return boolean success
+ */
+ public static function deleteById($item_id, $priority = PRIORITY_HIGH)
+ {
+ // locate item to be deleted
+ $fields = ['id', 'uid', 'parent', 'parent-uri', 'origin', 'deleted',
+ 'file', 'resource-id', 'event-id', 'attach',
+ 'verb', 'object-type', 'object', 'target', 'contact-id'];
+ $item = dba::selectFirst('item', $fields, ['id' => $item_id]);
+ if (!DBM::is_result($item)) {
+ return false;
+ }
+
+ if ($item['deleted']) {
+ return false;
+ }
+
+ $parent = dba::selectFirst('item', ['origin'], ['id' => $item['parent']]);
+ if (!DBM::is_result($parent)) {
+ $parent = ['origin' => false];
+ }
+
+ logger('delete item: ' . $item['id'], LOGGER_DEBUG);
+
+ // clean up categories and tags so they don't end up as orphans
+
+ $matches = false;
+ $cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
+ if ($cnt) {
+ foreach ($matches as $mtch) {
+ file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],true);
+ }
+ }
+
+ $matches = false;
+
+ $cnt = preg_match_all('/\[(.*?)\]/', $item['file'], $matches, PREG_SET_ORDER);
+ if ($cnt) {
+ foreach ($matches as $mtch) {
+ file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],false);
+ }
+ }
+
+ /*
+ * If item is a link to a photo resource, nuke all the associated photos
+ * (visitors will not have photo resources)
+ * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
+ * generate a resource-id and therefore aren't intimately linked to the item.
+ */
+ if (strlen($item['resource-id'])) {
+ dba::delete('photo', ['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
+ }
+
+ // If item is a link to an event, delete the event.
+ if (intval($item['event-id'])) {
+ Event::delete($item['event-id']);
+ }
+
+ // If item has attachments, drop them
+ foreach (explode(", ", $item['attach']) as $attach) {
+ preg_match("|attach/(\d+)|", $attach, $matches);
+ dba::delete('attach', ['id' => $matches[1], 'uid' => $item['uid']]);
+ }
+
+ // Delete tags that had been attached to other items
+ self::deleteTagsFromItem($item);
+
+ // Set the item to "deleted"
+ dba::update('item', ['deleted' => true, 'title' => '', 'body' => '',
+ 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()],
+ ['id' => $item['id']]);
+
+ Term::insertFromTagFieldByItemId($item['id']);
+ Term::insertFromFileFieldByItemId($item['id']);
+ self::deleteThread($item['id'], $item['parent-uri']);
+
+ // If it's the parent of a comment thread, kill all the kids
+ if ($item['id'] == $item['parent']) {
+ self::delete(['parent' => $item['parent']], $priority);
+ }
+
+ // send the notification upstream/downstream
+ if ($item['origin'] || $parent['origin']) {
+ Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", "drop", intval($item['id']));
+ }
+
+ return true;
+ }
+
+ private static function deleteTagsFromItem($item)
+ {
+ if (($item["verb"] != ACTIVITY_TAG) || ($item["object-type"] != ACTIVITY_OBJ_TAGTERM)) {
+ return;
+ }
+
+ $xo = XML::parseString($item["object"], false);
+ $xt = XML::parseString($item["target"], false);
+
+ if ($xt->type != ACTIVITY_OBJ_NOTE) {
+ return;
+ }
+
+ $i = dba::selectFirst('item', ['id', 'contact-id', 'tag'], ['uri' => $xt->id, 'uid' => $item['uid']]);
+ if (!DBM::is_result($i)) {
+ return;
+ }
+
+ // For tags, the owner cannot remove the tag on the author's copy of the post.
+ $owner_remove = ($item["contact-id"] == $i["contact-id"]);
+ $author_copy = $item["origin"];
+
+ if (($owner_remove && $author_copy) || !$owner_remove) {
+ return;
+ }
+
+ $tags = explode(',', $i["tag"]);
+ $newtags = [];
+ if (count($tags)) {
+ foreach ($tags as $tag) {
+ if (trim($tag) !== trim($xo->body)) {
+ $newtags[] = trim($tag);
+ }
+ }
+ }
+ self::update(['tag' => implode(',', $newtags)], ['id' => $i["id"]]);
+ }
+
+ private static function guid($item, $notify)
+ {
+ $guid = notags(trim($item['guid']));
+
+ if (!empty($guid)) {
+ return $guid;
+ }
+
+ if ($notify) {
+ // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
+ // We add the hash of our own host because our host is the original creator of the post.
+ $prefix_host = get_app()->get_hostname();
+ } else {
+ $prefix_host = '';
+
+ // We are only storing the post so we create a GUID from the original hostname.
+ if (!empty($item['author-link'])) {
+ $parsed = parse_url($item['author-link']);
+ if (!empty($parsed['host'])) {
+ $prefix_host = $parsed['host'];
+ }
+ }
+
+ if (empty($prefix_host) && !empty($item['plink'])) {
+ $parsed = parse_url($item['plink']);
+ if (!empty($parsed['host'])) {
+ $prefix_host = $parsed['host'];
+ }
+ }
+
+ if (empty($prefix_host) && !empty($item['uri'])) {
+ $parsed = parse_url($item['uri']);
+ if (!empty($parsed['host'])) {
+ $prefix_host = $parsed['host'];
+ }
+ }
+
+ // Is it in the format data@host.tld? - Used for mail contacts
+ if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
+ $mailparts = explode('@', $item['author-link']);
+ $prefix_host = array_pop($mailparts);
+ }
+ }
+
+ if (!empty($item['plink'])) {
+ $guid = self::guidFromUri($item['plink'], $prefix_host);
+ } elseif (!empty($item['uri'])) {
+ $guid = self::guidFromUri($item['uri'], $prefix_host);
+ } else {
+ $guid = get_guid(32, hash('crc32', $prefix_host));
+ }
+
+ return $guid;
+ }
+
+ private static function contactId($item)
+ {
+ $contact_id = (int)$item["contact-id"];
+
+ if (!empty($contact_id)) {
+ return $contact_id;
+ }
+ logger('Missing contact-id. Called by: '.System::callstack(), LOGGER_DEBUG);
+ /*
+ * First we are looking for a suitable contact that matches with the author of the post
+ * This is done only for comments
+ */
+ if ($item['parent-uri'] != $item['uri']) {
+ $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
+ }
+
+ // If not present then maybe the owner was found
+ if ($contact_id == 0) {
+ $contact_id = Contact::getIdForURL($item['owner-link'], $item['uid']);
+ }
+
+ // Still missing? Then use the "self" contact of the current user
+ if ($contact_id == 0) {
+ $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $item['uid']]);
+ if (DBM::is_result($self)) {
+ $contact_id = $self["id"];
+ }
+ }
+ logger("Contact-id was missing for post ".$item['guid']." from user id ".$item['uid']." - now set to ".$contact_id, LOGGER_DEBUG);
+
+ return $contact_id;
+ }
+
+ public static function insert($item, $force_parent = false, $notify = false, $dontcache = false)
+ {
+ $a = get_app();
+
+ // If it is a posting where users should get notifications, then define it as wall posting
+ if ($notify) {
+ $item['wall'] = 1;
+ $item['type'] = 'wall';
+ $item['origin'] = 1;
+ $item['network'] = NETWORK_DFRN;
+ $item['protocol'] = PROTOCOL_DFRN;
+ } else {
+ $item['network'] = trim(defaults($item, 'network', NETWORK_PHANTOM));
+ }
+
+ $item['guid'] = self::guid($item, $notify);
+ $item['uri'] = notags(trim(defaults($item, 'uri', item_new_uri($a->get_hostname(), $item['uid'], $item['guid']))));
+
+ // Store conversation data
+ $item = Conversation::insert($item);
+
+ /*
+ * If a Diaspora signature structure was passed in, pull it out of the
+ * item array and set it aside for later storage.
+ */
+
+ $dsprsig = null;
+ if (x($item, 'dsprsig')) {
+ $encoded_signature = $item['dsprsig'];
+ $dsprsig = json_decode(base64_decode($item['dsprsig']));
+ unset($item['dsprsig']);
+ }
+
+ // Converting the plink
+ /// @TODO Check if this is really still needed
+ if ($item['network'] == NETWORK_OSTATUS) {
+ if (isset($item['plink'])) {
+ $item['plink'] = OStatus::convertHref($item['plink']);
+ } elseif (isset($item['uri'])) {
+ $item['plink'] = OStatus::convertHref($item['uri']);
+ }
+ }
+
+ if (!empty($item['thr-parent'])) {
+ $item['parent-uri'] = $item['thr-parent'];
+ }
+
+ if (x($item, 'gravity')) {
+ $item['gravity'] = intval($item['gravity']);
+ } elseif ($item['parent-uri'] === $item['uri']) {
+ $item['gravity'] = 0;
+ } elseif (activity_match($item['verb'],ACTIVITY_POST)) {
+ $item['gravity'] = 6;
+ } else {
+ $item['gravity'] = 6; // extensible catchall
+ }
+
+ $item['type'] = defaults($item, 'type', 'remote');
+
+ $uid = intval($item['uid']);
+
+ // check for create date and expire time
+ $expire_interval = Config::get('system', 'dbclean-expire-days', 0);
+
+ $user = dba::selectFirst('user', ['expire'], ['uid' => $uid]);
+ if (DBM::is_result($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
+ $expire_interval = $user['expire'];
+ }
+
+ if (($expire_interval > 0) && !empty($item['created'])) {
+ $expire_date = time() - ($expire_interval * 86400);
+ $created_date = strtotime($item['created']);
+ if ($created_date < $expire_date) {
+ logger('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($item,true), LOGGER_DEBUG);
+ return 0;
+ }
+ }
+
+ /*
+ * Do we already have this item?
+ * We have to check several networks since Friendica posts could be repeated
+ * via OStatus (maybe Diasporsa as well)
+ */
+ if (in_array($item['network'], [NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS, ""])) {
+ $condition = ["`uri` = ? AND `uid` = ? AND `network` IN (?, ?, ?)",
+ trim($item['uri']), $item['uid'],
+ NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS];
+ $existing = dba::selectFirst('item', ['id', 'network'], $condition);
+ if (DBM::is_result($existing)) {
+ // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
+ if ($uid != 0) {
+ logger("Item with uri ".$item['uri']." already existed for user ".$uid." with id ".$existing["id"]." target network ".$existing["network"]." - new network: ".$item['network']);
+ }
+
+ return $existing["id"];
+ }
+ }
+
+ self::addLanguageInPostopts($item);
+
+ $item['wall'] = intval(defaults($item, 'wall', 0));
+ $item['extid'] = trim(defaults($item, 'extid', ''));
+ $item['author-name'] = trim(defaults($item, 'author-name', ''));
+ $item['author-link'] = trim(defaults($item, 'author-link', ''));
+ $item['author-avatar'] = trim(defaults($item, 'author-avatar', ''));
+ $item['owner-name'] = trim(defaults($item, 'owner-name', ''));
+ $item['owner-link'] = trim(defaults($item, 'owner-link', ''));
+ $item['owner-avatar'] = trim(defaults($item, 'owner-avatar', ''));
+ $item['received'] = ((x($item, 'received') !== false) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
+ $item['created'] = ((x($item, 'created') !== false) ? DateTimeFormat::utc($item['created']) : $item['received']);
+ $item['edited'] = ((x($item, 'edited') !== false) ? DateTimeFormat::utc($item['edited']) : $item['created']);
+ $item['changed'] = ((x($item, 'changed') !== false) ? DateTimeFormat::utc($item['changed']) : $item['created']);
+ $item['commented'] = ((x($item, 'commented') !== false) ? DateTimeFormat::utc($item['commented']) : $item['created']);
+ $item['title'] = trim(defaults($item, 'title', ''));
+ $item['location'] = trim(defaults($item, 'location', ''));
+ $item['coord'] = trim(defaults($item, 'coord', ''));
+ $item['visible'] = ((x($item, 'visible') !== false) ? intval($item['visible']) : 1);
+ $item['deleted'] = 0;
+ $item['parent-uri'] = trim(defaults($item, 'parent-uri', $item['uri']));
+ $item['verb'] = trim(defaults($item, 'verb', ''));
+ $item['object-type'] = trim(defaults($item, 'object-type', ''));
+ $item['object'] = trim(defaults($item, 'object', ''));
+ $item['target-type'] = trim(defaults($item, 'target-type', ''));
+ $item['target'] = trim(defaults($item, 'target', ''));
+ $item['plink'] = trim(defaults($item, 'plink', ''));
+ $item['allow_cid'] = trim(defaults($item, 'allow_cid', ''));
+ $item['allow_gid'] = trim(defaults($item, 'allow_gid', ''));
+ $item['deny_cid'] = trim(defaults($item, 'deny_cid', ''));
+ $item['deny_gid'] = trim(defaults($item, 'deny_gid', ''));
+ $item['private'] = intval(defaults($item, 'private', 0));
+ $item['bookmark'] = intval(defaults($item, 'bookmark', 0));
+ $item['body'] = trim(defaults($item, 'body', ''));
+ $item['tag'] = trim(defaults($item, 'tag', ''));
+ $item['attach'] = trim(defaults($item, 'attach', ''));
+ $item['app'] = trim(defaults($item, 'app', ''));
+ $item['origin'] = intval(defaults($item, 'origin', 0));
+ $item['postopts'] = trim(defaults($item, 'postopts', ''));
+ $item['resource-id'] = trim(defaults($item, 'resource-id', ''));
+ $item['event-id'] = intval(defaults($item, 'event-id', 0));
+ $item['inform'] = trim(defaults($item, 'inform', ''));
+ $item['file'] = trim(defaults($item, 'file', ''));
+
+ // When there is no content then we don't post it
+ if ($item['body'].$item['title'] == '') {
+ return 0;
+ }
+
+ // Items cannot be stored before they happen ...
+ if ($item['created'] > DateTimeFormat::utcNow()) {
+ $item['created'] = DateTimeFormat::utcNow();
+ }
+
+ // We haven't invented time travel by now.
+ if ($item['edited'] > DateTimeFormat::utcNow()) {
+ $item['edited'] = DateTimeFormat::utcNow();
+ }
+
+ if (($item['author-link'] == "") && ($item['owner-link'] == "")) {
+ logger("Both author-link and owner-link are empty. Called by: " . System::callstack(), LOGGER_DEBUG);
+ }
+
+ $item['plink'] = defaults($item, 'plink', System::baseUrl() . '/display/' . urlencode($item['guid']));
+
+ // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
+ $item["contact-id"] = self::contactId($item);
+
+ $item['author-id'] = defaults($item, 'author-id', Contact::getIdForURL($item["author-link"]));
+
+ if (Contact::isBlocked($item["author-id"])) {
+ logger('Contact '.$item["author-id"].' is blocked, item '.$item["uri"].' will not be stored');
+ return 0;
+ }
+
+ $item['owner-id'] = defaults($item, 'owner-id', Contact::getIdForURL($item["owner-link"]));
+
+ if (Contact::isBlocked($item["owner-id"])) {
+ logger('Contact '.$item["owner-id"].' is blocked, item '.$item["uri"].' will not be stored');
+ return 0;
+ }
+
+ if ($item['network'] == NETWORK_PHANTOM) {
+ logger('Missing network. Called by: '.System::callstack(), LOGGER_DEBUG);
+
+ $contact = Contact::getDetailsByURL($item['author-link'], $item['uid']);
+ if (!empty($contact['network'])) {
+ $item['network'] = $contact["network"];
+ } else {
+ $item['network'] = NETWORK_DFRN;
+ }
+ logger("Set network to " . $item["network"] . " for " . $item["uri"], LOGGER_DEBUG);
+ }
+
+ // Checking if there is already an item with the same guid
+ logger('Checking for an item for user '.$item['uid'].' on network '.$item['network'].' with the guid '.$item['guid'], LOGGER_DEBUG);
+ $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
+ if (dba::exists('item', $condition)) {
+ logger('found item with guid '.$item['guid'].' for user '.$item['uid'].' on network '.$item['network'], LOGGER_DEBUG);
+ return 0;
+ }
+
+ // Check for hashtags in the body and repair or add hashtag links
+ self::setHashtags($item);
+
+ $item['thr-parent'] = $item['parent-uri'];
+
+ $notify_type = '';
+ $allow_cid = '';
+ $allow_gid = '';
+ $deny_cid = '';
+ $deny_gid = '';
+
+ if ($item['parent-uri'] === $item['uri']) {
+ $parent_id = 0;
+ $parent_deleted = 0;
+ $allow_cid = $item['allow_cid'];
+ $allow_gid = $item['allow_gid'];
+ $deny_cid = $item['deny_cid'];
+ $deny_gid = $item['deny_gid'];
+ $notify_type = 'wall-new';
+ } else {
+ // find the parent and snarf the item id and ACLs
+ // and anything else we need to inherit
+
+ $fields = ['uri', 'parent-uri', 'id', 'deleted',
+ 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
+ 'wall', 'private', 'forum_mode'];
+ $condition = ['uri' => $item['parent-uri'], 'uid' => $item['uid']];
+ $params = ['order' => ['id' => false]];
+ $parent = dba::selectFirst('item', $fields, $condition, $params);
+
+ if (DBM::is_result($parent)) {
+ // is the new message multi-level threaded?
+ // even though we don't support it now, preserve the info
+ // and re-attach to the conversation parent.
+
+ if ($parent['uri'] != $parent['parent-uri']) {
+ $item['parent-uri'] = $parent['parent-uri'];
+
+ $condition = ['uri' => $item['parent-uri'],
+ 'parent-uri' => $item['parent-uri'],
+ 'uid' => $item['uid']];
+ $params = ['order' => ['id' => false]];
+ $toplevel_parent = dba::selectFirst('item', $fields, $condition, $params);
+
+ if (DBM::is_result($toplevel_parent)) {
+ $parent = $toplevel_parent;
+ }
+ }
+
+ $parent_id = $parent['id'];
+ $parent_deleted = $parent['deleted'];
+ $allow_cid = $parent['allow_cid'];
+ $allow_gid = $parent['allow_gid'];
+ $deny_cid = $parent['deny_cid'];
+ $deny_gid = $parent['deny_gid'];
+ $item['wall'] = $parent['wall'];
+ $notify_type = 'comment-new';
+
+ /*
+ * If the parent is private, force privacy for the entire conversation
+ * This differs from the above settings as it subtly allows comments from
+ * email correspondents to be private even if the overall thread is not.
+ */
+ if ($parent['private']) {
+ $item['private'] = $parent['private'];
+ }
+
+ /*
+ * Edge case. We host a public forum that was originally posted to privately.
+ * The original author commented, but as this is a comment, the permissions
+ * weren't fixed up so it will still show the comment as private unless we fix it here.
+ */
+ if ((intval($parent['forum_mode']) == 1) && $parent['private']) {
+ $item['private'] = 0;
+ }
+
+ // If its a post from myself then tag the thread as "mention"
+ logger("Checking if parent ".$parent_id." has to be tagged as mention for user ".$item['uid'], LOGGER_DEBUG);
+ $user = dba::selectFirst('user', ['nickname'], ['uid' => $item['uid']]);
+ if (DBM::is_result($user)) {
+ $self = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
+ logger("'myself' is ".$self." for parent ".$parent_id." checking against ".$item['author-link']." and ".$item['owner-link'], LOGGER_DEBUG);
+ if ((normalise_link($item['author-link']) == $self) || (normalise_link($item['owner-link']) == $self)) {
+ dba::update('thread', ['mention' => true], ['iid' => $parent_id]);
+ logger("tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
+ }
+ }
+ } else {
+ /*
+ * Allow one to see reply tweets from status.net even when
+ * we don't have or can't see the original post.
+ */
+ if ($force_parent) {
+ logger('$force_parent=true, reply converted to top-level post.');
+ $parent_id = 0;
+ $item['parent-uri'] = $item['uri'];
+ $item['gravity'] = 0;
+ } else {
+ logger('item parent '.$item['parent-uri'].' for '.$item['uid'].' was not found - ignoring item');
+ return 0;
+ }
+
+ $parent_deleted = 0;
+ }
+ }
+
+ $condition = ["`uri` = ? AND `network` IN (?, ?) AND `uid` = ?",
+ $item['uri'], $item['network'], NETWORK_DFRN, $item['uid']];
+ if (dba::exists('item', $condition)) {
+ logger('duplicated item with the same uri found. '.print_r($item,true));
+ return 0;
+ }
+
+ // On Friendica and Diaspora the GUID is unique
+ if (in_array($item['network'], [NETWORK_DFRN, NETWORK_DIASPORA])) {
+ $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
+ if (dba::exists('item', $condition)) {
+ logger('duplicated item with the same guid found. '.print_r($item,true));
+ return 0;
+ }
+ } else {
+ // Check for an existing post with the same content. There seems to be a problem with OStatus.
+ $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
+ $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
+ if (dba::exists('item', $condition)) {
+ logger('duplicated item with the same body found. '.print_r($item,true));
+ return 0;
+ }
+ }
+
+ // Is this item available in the global items (with uid=0)?
+ if ($item["uid"] == 0) {
+ $item["global"] = true;
+
+ // Set the global flag on all items if this was a global item entry
+ dba::update('item', ['global' => true], ['uri' => $item["uri"]]);
+ } else {
+ $item["global"] = dba::exists('item', ['uid' => 0, 'uri' => $item["uri"]]);
+ }
+
+ // ACL settings
+ if (strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid)) {
+ $private = 1;
+ } else {
+ $private = $item['private'];
+ }
+
+ $item["allow_cid"] = $allow_cid;
+ $item["allow_gid"] = $allow_gid;
+ $item["deny_cid"] = $deny_cid;
+ $item["deny_gid"] = $deny_gid;
+ $item["private"] = $private;
+ $item["deleted"] = $parent_deleted;
+
+ // Fill the cache field
+ put_item_in_cache($item);
+
+ if ($notify) {
+ Addon::callHooks('post_local', $item);
+ } else {
+ Addon::callHooks('post_remote', $item);
+ }
+
+ // This array field is used to trigger some automatic reactions
+ // It is mainly used in the "post_local" hook.
+ unset($item['api_source']);
+
+ if (x($item, 'cancel')) {
+ logger('post cancelled by addon.');
+ return 0;
+ }
+
+ /*
+ * Check for already added items.
+ * There is a timing issue here that sometimes creates double postings.
+ * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
+ */
+ if ($item["uid"] == 0) {
+ if (dba::exists('item', ['uri' => trim($item['uri']), 'uid' => 0])) {
+ logger('Global item already stored. URI: '.$item['uri'].' on network '.$item['network'], LOGGER_DEBUG);
+ return 0;
+ }
+ }
+
+ logger('' . print_r($item,true), LOGGER_DATA);
+
+ dba::transaction();
+ $ret = dba::insert('item', $item);
+
+ // When the item was successfully stored we fetch the ID of the item.
+ if (DBM::is_result($ret)) {
+ $current_post = dba::lastInsertId();
+ } else {
+ // This can happen - for example - if there are locking timeouts.
+ dba::rollback();
+
+ // Store the data into a spool file so that we can try again later.
+
+ // At first we restore the Diaspora signature that we removed above.
+ if (isset($encoded_signature)) {
+ $item['dsprsig'] = $encoded_signature;
+ }
+
+ // Now we store the data in the spool directory
+ // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
+ $file = 'item-'.round(microtime(true) * 10000).'-'.mt_rand().'.msg';
+
+ $spoolpath = get_spoolpath();
+ if ($spoolpath != "") {
+ $spool = $spoolpath.'/'.$file;
+ file_put_contents($spool, json_encode($item));
+ logger("Item wasn't stored - Item was spooled into file ".$file, LOGGER_DEBUG);
+ }
+ return 0;
+ }
+
+ if ($current_post == 0) {
+ // This is one of these error messages that never should occur.
+ logger("couldn't find created item - we better quit now.");
+ dba::rollback();
+ return 0;
+ }
+
+ // How much entries have we created?
+ // We wouldn't need this query when we could use an unique index - but MySQL has length problems with them.
+ $entries = dba::count('item', ['uri' => $item['uri'], 'uid' => $item['uid'], 'network' => $item['network']]);
+
+ if ($entries > 1) {
+ // There are duplicates. We delete our just created entry.
+ logger('Duplicated post occurred. uri = ' . $item['uri'] . ' uid = ' . $item['uid']);
+
+ // Yes, we could do a rollback here - but we are having many users with MyISAM.
+ dba::delete('item', ['id' => $current_post]);
+ dba::commit();
+ return 0;
+ } elseif ($entries == 0) {
+ // This really should never happen since we quit earlier if there were problems.
+ logger("Something is terribly wrong. We haven't found our created entry.");
+ dba::rollback();
+ return 0;
+ }
+
+ logger('created item '.$current_post);
+ self::updateContact($item);
+
+ if (!$parent_id || ($item['parent-uri'] === $item['uri'])) {
+ $parent_id = $current_post;
+ }
+
+ // Set parent id
+ dba::update('item', ['parent' => $parent_id], ['id' => $current_post]);
+
+ $item['id'] = $current_post;
+ $item['parent'] = $parent_id;
+
+ // update the commented timestamp on the parent
+ // Only update "commented" if it is really a comment
+ if (($item['verb'] == ACTIVITY_POST) || !Config::get("system", "like_no_comment")) {
+ dba::update('item', ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
+ } else {
+ dba::update('item', ['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
+ }
+
+ if ($dsprsig) {
+ /*
+ * Friendica servers lower than 3.4.3-2 had double encoded the signature ...
+ * We can check for this condition when we decode and encode the stuff again.
+ */
+ if (base64_encode(base64_decode(base64_decode($dsprsig->signature))) == base64_decode($dsprsig->signature)) {
+ $dsprsig->signature = base64_decode($dsprsig->signature);
+ logger("Repaired double encoded signature from handle ".$dsprsig->signer, LOGGER_DEBUG);
+ }
+
+ dba::insert('sign', ['iid' => $current_post, 'signed_text' => $dsprsig->signed_text,
+ 'signature' => $dsprsig->signature, 'signer' => $dsprsig->signer]);
+ }
+
+ $deleted = self::tagDeliver($item['uid'], $current_post);
+
+ /*
+ * current post can be deleted if is for a community page and no mention are
+ * in it.
+ */
+ if (!$deleted && !$dontcache) {
+ $posted_item = dba::selectFirst('item', [], ['id' => $current_post]);
+ if (DBM::is_result($posted_item)) {
+ if ($notify) {
+ Addon::callHooks('post_local_end', $posted_item);
+ } else {
+ Addon::callHooks('post_remote_end', $posted_item);
+ }
+ } else {
+ logger('new item not found in DB, id ' . $current_post);
+ }
+ }
+
+ if ($item['parent-uri'] === $item['uri']) {
+ self::addThread($current_post);
+ } else {
+ self::updateThread($parent_id);
+ }
+
+ dba::commit();
+
+ /*
+ * Due to deadlock issues with the "term" table we are doing these steps after the commit.
+ * This is not perfect - but a workable solution until we found the reason for the problem.
+ */
+ Term::insertFromTagFieldByItemId($current_post);
+ Term::insertFromFileFieldByItemId($current_post);
+
+ if ($item['parent-uri'] === $item['uri']) {
+ self::addShadow($current_post);
+ } else {
+ self::addShadowPost($current_post);
+ }
+
+ check_user_notification($current_post);
+
+ if ($notify) {
+ Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "Notifier", $notify_type, $current_post);
+ }
+
+ return $current_post;
+ }
+
+ /**
+ * @brief Add a shadow entry for a given item id that is a thread starter
+ *
+ * We store every public item entry additionally with the user id "0".
+ * This is used for the community page and for the search.
+ * It is planned that in the future we will store public item entries only once.
+ *
+ * @param integer $itemid Item ID that should be added
+ */
+ public static function addShadow($itemid)
+ {
+ $fields = ['uid', 'wall', 'private', 'moderated', 'visible', 'contact-id', 'deleted', 'network', 'author-id', 'owner-id'];
+ $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
+ $item = dba::selectFirst('item', $fields, $condition);
+
+ if (!DBM::is_result($item)) {
+ return;
+ }
+
+ // is it already a copy?
+ if (($itemid == 0) || ($item['uid'] == 0)) {
+ return;
+ }
+
+ // Is it a visible public post?
+ if (!$item["visible"] || $item["deleted"] || $item["moderated"] || $item["private"]) {
+ return;
+ }
+
+ // is it an entry from a connector? Only add an entry for natively connected networks
+ if (!in_array($item["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
+ return;
+ }
+
+ // Only do these checks if the post isn't a wall post
+ if (!$item["wall"]) {
+ // Check, if hide-friends is activated - then don't do a shadow entry
+ if (dba::exists('profile', ['is-default' => true, 'uid' => $item['uid'], 'hide-friends' => true])) {
+ return;
+ }
+
+ // Check if the contact is hidden or blocked
+ if (!dba::exists('contact', ['hidden' => false, 'blocked' => false, 'id' => $item['contact-id']])) {
+ return;
+ }
+ }
+
+ // Only add a shadow, if the profile isn't hidden
+ if (dba::exists('user', ['uid' => $item['uid'], 'hidewall' => true])) {
+ return;
+ }
+
+ $item = dba::selectFirst('item', [], ['id' => $itemid]);
+
+ if (DBM::is_result($item) && ($item["allow_cid"] == '') && ($item["allow_gid"] == '') &&
+ ($item["deny_cid"] == '') && ($item["deny_gid"] == '')) {
+
+ if (!dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
+ // Preparing public shadow (removing user specific data)
+ unset($item['id']);
+ $item['uid'] = 0;
+ $item['origin'] = 0;
+ $item['wall'] = 0;
+ if ($item['uri'] == $item['parent-uri']) {
+ $item['contact-id'] = Contact::getIdForURL($item['owner-link']);
+ } else {
+ $item['contact-id'] = Contact::getIdForURL($item['author-link']);
+ }
+
+ if (in_array($item['type'], ["net-comment", "wall-comment"])) {
+ $item['type'] = 'remote-comment';
+ } elseif ($item['type'] == 'wall') {
+ $item['type'] = 'remote';
+ }
+
+ $public_shadow = self::insert($item, false, false, true);
+
+ logger("Stored public shadow for thread ".$itemid." under id ".$public_shadow, LOGGER_DEBUG);
+ }
+ }
+ }
+
+ /**
+ * @brief Add a shadow entry for a given item id that is a comment
+ *
+ * This function does the same like the function above - but for comments
+ *
+ * @param integer $itemid Item ID that should be added
+ */
+ public static function addShadowPost($itemid)
+ {
+ $item = dba::selectFirst('item', [], ['id' => $itemid]);
+ if (!DBM::is_result($item)) {
+ return;
+ }
+
+ // Is it a toplevel post?
+ if ($item['id'] == $item['parent']) {
+ self::addShadow($itemid);
+ return;
+ }
+
+ // Is this a shadow entry?
+ if ($item['uid'] == 0)
+ return;
+
+ // Is there a shadow parent?
+ if (!dba::exists('item', ['uri' => $item['parent-uri'], 'uid' => 0])) {
+ return;
+ }
+
+ // Is there already a shadow entry?
+ if (dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
+ return;
+ }
+
+ // Preparing public shadow (removing user specific data)
+ unset($item['id']);
+ $item['uid'] = 0;
+ $item['origin'] = 0;
+ $item['wall'] = 0;
+ $item['contact-id'] = Contact::getIdForURL($item['author-link']);
+
+ if (in_array($item['type'], ["net-comment", "wall-comment"])) {
+ $item['type'] = 'remote-comment';
+ } elseif ($item['type'] == 'wall') {
+ $item['type'] = 'remote';
+ }
+
+ $public_shadow = self::insert($item, false, false, true);
+
+ logger("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, LOGGER_DEBUG);
+ }
+
+ /**
+ * Adds a "lang" specification in a "postopts" element of given $arr,
+ * if possible and not already present.
+ * Expects "body" element to exist in $arr.
+ */
+ private static function addLanguageInPostopts(&$arr)
+ {
+ if (x($arr, 'postopts')) {
+ if (strstr($arr['postopts'], 'lang=')) {
+ // do not override
+ return;
+ }
+ $postopts = $arr['postopts'];
+ } else {
+ $postopts = "";
+ }
+
+ $naked_body = preg_replace('/\[(.+?)\]/','', $arr['body']);
+ $l = new Text_LanguageDetect();
+ $lng = $l->detect($naked_body, 3);
+
+ if (sizeof($lng) > 0) {
+ if ($postopts != "") {
+ $postopts .= '&'; // arbitrary separator, to be reviewed
+ }
+
+ $postopts .= 'lang=';
+ $sep = "";
+
+ foreach ($lng as $language => $score) {
+ $postopts .= $sep . $language . ";" . $score;
+ $sep = ':';
+ }
+ $arr['postopts'] = $postopts;
+ }
+ }
+
+ /**
+ * @brief Creates an unique guid out of a given uri
+ *
+ * @param string $uri uri of an item entry
+ * @param string $host hostname for the GUID prefix
+ * @return string unique guid
+ */
+ public static function guidFromUri($uri, $host)
+ {
+ // Our regular guid routine is using this kind of prefix as well
+ // We have to avoid that different routines could accidentally create the same value
+ $parsed = parse_url($uri);
+
+ // We use a hash of the hostname as prefix for the guid
+ $guid_prefix = hash("crc32", $host);
+
+ // Remove the scheme to make sure that "https" and "http" doesn't make a difference
+ unset($parsed["scheme"]);
+
+ // Glue it together to be able to make a hash from it
+ $host_id = implode("/", $parsed);
+
+ // We could use any hash algorithm since it isn't a security issue
+ $host_hash = hash("ripemd128", $host_id);
+
+ return $guid_prefix.$host_hash;
+ }
+
+ /**
+ * @brief Set "success_update" and "last-item" to the date of the last time we heard from this contact
+ *
+ * This can be used to filter for inactive contacts.
+ * Only do this for public postings to avoid privacy problems, since poco data is public.
+ * Don't set this value if it isn't from the owner (could be an author that we don't know)
+ *
+ * @param array $arr Contains the just posted item record
+ */
+ private static function updateContact($arr)
+ {
+ // Unarchive the author
+ $contact = dba::selectFirst('contact', [], ['id' => $arr["author-id"]]);
+ if (DBM::is_result($contact)) {
+ Contact::unmarkForArchival($contact);
+ }
+
+ // Unarchive the contact if it's not our own contact
+ $contact = dba::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
+ if (DBM::is_result($contact)) {
+ Contact::unmarkForArchival($contact);
+ }
+
+ $update = (!$arr['private'] && (($arr["author-link"] === $arr["owner-link"]) || ($arr["parent-uri"] === $arr["uri"])));
+
+ // Is it a forum? Then we don't care about the rules from above
+ if (!$update && ($arr["network"] == NETWORK_DFRN) && ($arr["parent-uri"] === $arr["uri"])) {
+ if (dba::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
+ $update = true;
+ }
+ }
+
+ if ($update) {
+ dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
+ ['id' => $arr['contact-id']]);
+ }
+ // Now do the same for the system wide contacts with uid=0
+ if (!$arr['private']) {
+ dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
+ ['id' => $arr['owner-id']]);
+
+ if ($arr['owner-id'] != $arr['author-id']) {
+ dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
+ ['id' => $arr['author-id']]);
+ }
+ }
+ }
+
+ private static function setHashtags(&$item)
+ {
+
+ $tags = get_tags($item["body"]);
+
+ // No hashtags?
+ if (!count($tags)) {
+ return false;
+ }
+
+ // This sorting is important when there are hashtags that are part of other hashtags
+ // Otherwise there could be problems with hashtags like #test and #test2
+ rsort($tags);
+
+ $URLSearchString = "^\[\]";
+
+ // All hashtags should point to the home server if "local_tags" is activated
+ if (Config::get('system', 'local_tags')) {
+ $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
+ "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["body"]);
+
+ $item["tag"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
+ "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["tag"]);
+ }
+
+ // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
+ $item["body"] = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
+ function ($match) {
+ return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
+ }, $item["body"]);
+
+ $item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
+ function ($match) {
+ return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
+ }, $item["body"]);
+
+ $item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
+ function ($match) {
+ return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
+ }, $item["body"]);
+
+ // Repair recursive urls
+ $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
+ "#$2", $item["body"]);
+
+ foreach ($tags as $tag) {
+ if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=')) {