]> git.mxchange.org Git - friendica.git/blobdiff - src/Model/Item.php
removed unneeded notification check
[friendica.git] / src / Model / Item.php
index 0a242aa058a53d2935f3cebc782128ad60fa3170..778b872bbb751452c2894c6ba2d2c2c94aebeba8 100644 (file)
@@ -31,6 +31,7 @@ use Friendica\Core\Session;
 use Friendica\Core\System;
 use Friendica\Core\Worker;
 use Friendica\Database\DBA;
+use Friendica\Database\DBStructure;
 use Friendica\DI;
 use Friendica\Model\Post\Category;
 use Friendica\Protocol\Activity;
@@ -118,8 +119,22 @@ class Item
        const PRIVATE = 1;
        const UNLISTED = 2;
 
+       const TABLES = ['item', 'user-item', 'item-content', 'post-delivery-data', 'diaspora-interaction'];
+
        private static $legacy_mode = null;
 
+       private static function getItemFields()
+       {
+               $definition = DBStructure::definition('', false);
+
+               $postfields = [];
+               foreach (self::TABLES as $table) {
+                       $postfields[$table] = array_keys($definition[$table]['fields']);
+               }
+
+               return $postfields;
+       }
+
        public static function isLegacyMode()
        {
                if (is_null(self::$legacy_mode)) {
@@ -672,7 +687,8 @@ class Item
 
                $fields['parent-item'] = ['guid' => 'parent-guid', 'network' => 'parent-network'];
 
-               $fields['parent-item-author'] = ['url' => 'parent-author-link', 'name' => 'parent-author-name'];
+               $fields['parent-item-author'] = ['url' => 'parent-author-link', 'name' => 'parent-author-name',
+                       'network' => 'parent-author-network'];
 
                $fields['event'] = ['created' => 'event-created', 'edited' => 'event-edited',
                        'start' => 'event-start','finish' => 'event-finish',
@@ -786,12 +802,12 @@ class Item
                        $joins .= " LEFT JOIN `permissionset` ON `permissionset`.`id` = `item`.`psid`";
                }
 
-               if ((strpos($sql_commands, "`parent-item`.") !== false) || (strpos($sql_commands, "`parent-author`.") !== false)) {
+               if ((strpos($sql_commands, "`parent-item`.") !== false) || (strpos($sql_commands, "`parent-item-author`.") !== false)) {
                        $joins .= " STRAIGHT_JOIN `item` AS `parent-item` ON `parent-item`.`id` = `item`.`parent`";
-               }
 
-               if (strpos($sql_commands, "`parent-item-author`.") !== false) {
-                       $joins .= " STRAIGHT_JOIN `contact` AS `parent-item-author` ON `parent-item-author`.`id` = `parent-item`.`author-id`";
+                       if (strpos($sql_commands, "`parent-item-author`.") !== false) {
+                               $joins .= " STRAIGHT_JOIN `contact` AS `parent-item-author` ON `parent-item-author`.`id` = `parent-item`.`author-id`";
+                       }
                }
 
                return $joins;
@@ -1378,7 +1394,7 @@ class Item
                        return false;
                }
 
-               if (!empty($item['uid']) && Contact::isBlockedByUser($item['author-id'], $item['uid'])) {
+               if (!empty($item['uid']) && Contact\User::isBlocked($item['author-id'], $item['uid'])) {
                        Logger::notice('Author is blocked by user', ['author-link' => $item['author-link'], 'uid' => $item['uid'], 'item-uri' => $item['uri']]);
                        return false;
                }
@@ -1393,18 +1409,18 @@ class Item
                        return false;
                }
 
-               if (!empty($item['uid']) && Contact::isBlockedByUser($item['owner-id'], $item['uid'])) {
+               if (!empty($item['uid']) && Contact\User::isBlocked($item['owner-id'], $item['uid'])) {
                        Logger::notice('Owner is blocked by user', ['owner-link' => $item['owner-link'], 'uid' => $item['uid'], 'item-uri' => $item['uri']]);
                        return false;
                }
 
                // The causer is set during a thread completion, for example because of a reshare. It countains the responsible actor.
-               if (!empty($item['uid']) && !empty($item['causer-id']) && Contact::isBlockedByUser($item['causer-id'], $item['uid'])) {
+               if (!empty($item['uid']) && !empty($item['causer-id']) && Contact\User::isBlocked($item['causer-id'], $item['uid'])) {
                        Logger::notice('Causer is blocked by user', ['causer-link' => $item['causer-link'], 'uid' => $item['uid'], 'item-uri' => $item['uri']]);
                        return false;
                }
 
-               if (!empty($item['uid']) && !empty($item['causer-id']) && ($item['parent-uri'] == $item['uri']) && Contact::isIgnoredByUser($item['causer-id'], $item['uid'])) {
+               if (!empty($item['uid']) && !empty($item['causer-id']) && ($item['parent-uri'] == $item['uri']) && Contact\User::isIgnored($item['causer-id'], $item['uid'])) {
                        Logger::notice('Causer is ignored by user', ['causer-link' => $item['causer-link'], 'uid' => $item['uid'], 'item-uri' => $item['uri']]);
                        return false;
                }
@@ -1538,9 +1554,7 @@ class Item
                        }
 
                        // Update the contact relations
-                       if ($item['author-id'] != $parent['author-id']) {
-                               DBA::update('contact-relation', ['last-interaction' => $item['created']], ['cid' => $parent['author-id'], 'relation-cid' => $item['author-id']], true);
-                       }
+                       Contact\Relation::store($parent['author-id'], $item['author-id'], $item['created']);
                }
 
                return $item;
@@ -1564,6 +1578,8 @@ class Item
                        return GRAVITY_COMMENT;
                } elseif ($activity->match($item['verb'], Activity::FOLLOW)) {
                        return GRAVITY_ACTIVITY;
+               } elseif ($activity->match($item['verb'], Activity::ANNOUNCE)) {
+                       return GRAVITY_ACTIVITY;
                }
                Logger::info('Unknown gravity for verb', ['verb' => $item['verb']]);
                return GRAVITY_UNKNOWN;   // Should not happen
@@ -1571,6 +1587,8 @@ class Item
 
        public static function insert($item, $notify = false, $dontcache = false)
        {
+               $structure = self::getItemFields();
+
                $orig_item = $item;
 
                $priority = PRIORITY_HIGH;
@@ -1679,11 +1697,15 @@ class Item
 
                $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
                        'photo' => $item['author-avatar'], 'network' => $item['network']];
-               $item['author-id'] = ($item['author-id'] ?? 0) ?: Contact::getIdForURL($item['author-link'], 0, false, $default);
+               $item['author-id'] = ($item['author-id'] ?? 0) ?: Contact::getIdForURL($item['author-link'], 0, null, $default);
 
                $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
                        'photo' => $item['owner-avatar'], 'network' => $item['network']];
-               $item['owner-id'] = ($item['owner-id'] ?? 0) ?: Contact::getIdForURL($item['owner-link'], 0, false, $default);
+               $item['owner-id'] = ($item['owner-id'] ?? 0) ?: Contact::getIdForURL($item['owner-link'], 0, null, $default);
+
+               // Ensure that there is an avatar cache
+               Contact::checkAvatarCache($item['author-id']);
+               Contact::checkAvatarCache($item['owner-id']);
 
                // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
                $item["contact-id"] = self::contactId($item);
@@ -1778,6 +1800,7 @@ class Item
                // It is mainly used in the "post_local" hook.
                unset($item['api_source']);
 
+               self::transformToForumPost($item);
 
                // Check for hashtags in the body and repair or add hashtag links
                $item['body'] = self::setHashtags($item['body']);
@@ -1837,7 +1860,14 @@ class Item
                if (!Tag::existsForPost($item['uri-id'])) {
                        Tag::storeFromBody($item['uri-id'], $body);
                }
-               
+
+               // Remove all fields that aren't part of the item table
+               foreach ($item as $field => $value) {
+                       if (!in_array($field, $structure['item'])) {
+                               unset($item[$field]);
+                       }
+               }
+
                $ret = DBA::insert('item', $item);
 
                // When the item was successfully stored we fetch the ID of the item.
@@ -1939,6 +1969,9 @@ class Item
 
                check_user_notification($current_post);
 
+               // Distribute items to users who subscribed to their tags
+               self::distributeByTags($item);
+
                $transmit = $notify || ($item['visible'] && ($parent_origin || $item['origin']));
 
                if ($transmit) {
@@ -1958,6 +1991,55 @@ class Item
                return $current_post;
        }
 
+       /**
+        * Convert items to forum posts
+        *
+        * (public) forum posts in the new format consist of the regular post by the author
+        * followed by an announce message sent from the forum account.
+        * This means we have to look out for an announce message send by a forum account.
+        *
+        * @param array $item
+        * @return void
+        */
+       private static function transformToForumPost(array $item)
+       {
+               if ($item["verb"] != Activity::ANNOUNCE) {
+                       // No announce message, so don't do anything
+                       return;
+               }
+
+               $pcontact = Contact::selectFirst(['nurl'], ['id' => $item['author-id'], 'contact-type' => Contact::TYPE_COMMUNITY]);
+               if (empty($pcontact['nurl'])) {
+                       // The announce message wasn't created by a forum account, so we don't need to continue
+                       return;
+               }
+
+               $contact = Contact::selectFirst(['id'], ['nurl' => $pcontact['nurl'], 'uid' => $item['uid']]);
+               if (!empty($contact['id'])) {
+                       $condition = ['uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']];
+                       Item::update(['owner-id' => $item['author-id'], 'contact-id' => $contact['id']], $condition);
+                       Logger::info('Convert message into a forum message', ['uri-id' => $item['uri-id'], 'parent-uri-id' => $item['parent-uri-id'], 'uid' => $item['uid'], 'owner-id' => $item['author-id'], 'contact-id' => $contact['id']]);
+               }
+       }
+
+       /**
+        * Distribute the given item to users who subscribed to their tags
+        *
+        * @param array $item     Processed item
+        */
+       private static function distributeByTags(array $item)
+       {
+               if (($item['uid'] != 0) || ($item['gravity'] != GRAVITY_PARENT) || !in_array($item['network'], Protocol::FEDERATED)) {
+                       return;
+               }
+
+               $uids = Tag::getUIDListByURIId($item['uri-id']);
+               foreach ($uids as $uid) {
+                       $stored = self::storeForUserByUriId($item['uri-id'], $uid);
+                       Logger::info('Stored item for users', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
+               }
+       }
+
        /**
         * Insert a new item content entry
         *
@@ -2021,9 +2103,7 @@ class Item
                }
 
                if (empty($fields)) {
-                       // when there are no fields at all, just use the condition
-                       // This is to ensure that we always store content.
-                       $fields = $condition;
+                       return;
                }
 
                DBA::update('item-content', $fields, $condition, true);
@@ -2056,13 +2136,6 @@ class Item
 
                $origin = $item['origin'];
 
-               unset($item['id']);
-               unset($item['parent']);
-               unset($item['mention']);
-               unset($item['wall']);
-               unset($item['origin']);
-               unset($item['starred']);
-
                $users = [];
 
                /// @todo add a field "pcid" in the contact table that referrs to the public contact id.
@@ -2094,7 +2167,7 @@ class Item
                DBA::close($contacts);
 
                if (!empty($owner['alias'])) {
-                       $condition = ['url' => $owner['alias'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
+                       $condition = ['nurl' => Strings::normaliseLink($owner['alias']), 'rel' => [Contact::SHARING, Contact::FRIEND]];
                        $contacts = DBA::select('contact', ['uid'], $condition);
                        while ($contact = DBA::fetch($contacts)) {
                                if ($contact['uid'] == 0) {
@@ -2122,33 +2195,76 @@ class Item
                        if ($origin_uid == $uid) {
                                $item['diaspora_signed_text'] = $signed_text;
                        }
-                       self::storeForUser($itemid, $item, $uid);
+                       self::storeForUser($item, $uid);
                }
        }
 
        /**
-        * Store public items for the receivers
+        * Store a public item defined by their URI-ID for the given users
+        *
+        * @param integer $uri_id URI-ID of the given item
+        * @param integer $uid    The user that will receive the item entry
+        * @return integer stored item id
+        */
+       public static function storeForUserByUriId(int $uri_id, int $uid)
+       {
+               $item = self::selectFirst(self::ITEM_FIELDLIST, ['uri-id' => $uri_id, 'uid' => 0]);
+               if (!DBA::isResult($item)) {
+                       return 0;
+               }
+
+               if (($item['private'] == self::PRIVATE) || !in_array($item['network'], Protocol::FEDERATED)) {
+                       Logger::notice('Item is private or not from a federated network. It will not be stored for the user.', ['uri-id' => $uri_id, 'uid' => $uid, 'private' => $item['private'], 'network' => $item['network']]);
+                       return 0;
+               }
+
+               $stored = self::storeForUser($item, $uid);
+               Logger::info('Public item stored for user', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
+               return $stored;
+       }
+
+       /**
+        * Store a public item array for the given users
         *
-        * @param integer $itemid Item ID that should be added
         * @param array   $item   The item entry that will be stored
         * @param integer $uid    The user that will receive the item entry
+        * @return integer stored item id
         * @throws \Exception
         */
-       private static function storeForUser($itemid, $item, $uid)
+       private static function storeForUser(array $item, int $uid)
        {
+               if (self::exists(['uri-id' => $item['uri-id'], 'uid' => $uid])) {
+                       Logger::info('Item already exists', ['uri-id' => $item['uri-id'], 'uid' => $uid]);
+                       return 0;
+               }
+
+               unset($item['id']);
+               unset($item['parent']);
+               unset($item['mention']);
+               unset($item['starred']);
+               unset($item['unseen']);
+               unset($item['psid']);
+
                $item['uid'] = $uid;
                $item['origin'] = 0;
                $item['wall'] = 0;
-               if ($item['uri'] == $item['parent-uri']) {
-                       $item['contact-id'] = Contact::getIdForURL($item['owner-link'], $uid);
+
+               if ($item['gravity'] == GRAVITY_PARENT) {
+                       $contact = Contact::getByURLForUser($item['owner-link'], $uid, false, ['id']);
                } else {
-                       $item['contact-id'] = Contact::getIdForURL($item['author-link'], $uid);
+                       $contact = Contact::getByURLForUser($item['author-link'], $uid, false, ['id']);
                }
 
-               if (empty($item['contact-id'])) {
+               if (!empty($contact['id'])) {
+                       $item['contact-id'] = $contact['id'];
+               } else {
+                       // Shouldn't happen at all
+                       Logger::warning('contact-id could not be fetched', ['uid' => $uid, 'item' => $item]);
                        $self = DBA::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
                        if (!DBA::isResult($self)) {
-                               return;
+                               // Shouldn't happen even less
+                               Logger::warning('self contact could not be fetched', ['uid' => $uid, 'item' => $item]);
+                               return 0;
                        }
                        $item['contact-id'] = $self['id'];
                }
@@ -2156,7 +2272,7 @@ class Item
                /// @todo Handling of "event-id"
 
                $notify = false;
-               if ($item['uri'] == $item['parent-uri']) {
+               if ($item['gravity'] == GRAVITY_PARENT) {
                        $contact = DBA::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
                        if (DBA::isResult($contact)) {
                                $notify = self::isRemoteSelf($contact, $item);
@@ -2166,10 +2282,11 @@ class Item
                $distributed = self::insert($item, $notify, true);
 
                if (!$distributed) {
-                       Logger::log("Distributed public item " . $itemid . " for user " . $uid . " wasn't stored", Logger::DEBUG);
+                       Logger::info("Distributed public item wasn't stored", ['uri-id' => $item['uri-id'], 'user' => $uid]);
                } else {
-                       Logger::log("Distributed public item " . $itemid . " for user " . $uid . " with id " . $distributed, Logger::DEBUG);
+                       Logger::info('Distributed public item was stored', ['uri-id' => $item['uri-id'], 'user' => $uid, 'stored' => $distributed]);
                }
+               return $distributed;
        }
 
        /**
@@ -2232,7 +2349,7 @@ class Item
 
                        $public_shadow = self::insert($item, false, true);
 
-                       Logger::log("Stored public shadow for thread ".$itemid." under id ".$public_shadow, Logger::DEBUG);
+                       Logger::info('Stored public shadow', ['thread' => $itemid, 'id' => $public_shadow]);
                }
        }
 
@@ -2290,7 +2407,7 @@ class Item
 
                $public_shadow = self::insert($item, false, true);
 
-               Logger::log("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, Logger::DEBUG);
+               Logger::info('Stored public shadow', ['uri' => $item['uri'], 'id' => $public_shadow]);
 
                // If this was a comment to a Diaspora post we don't get our comment back.
                // This means that we have to distribute the comment by ourselves.
@@ -2392,7 +2509,7 @@ class Item
                }
 
                /// @todo On private posts we could obfuscate the date
-               $update = ($arr['private'] != self::PRIVATE);
+               $update = ($arr['private'] != self::PRIVATE) || in_array($arr['network'], Protocol::FEDERATED);
 
                // Is it a forum? Then we don't care about the rules from above
                if (!$update && in_array($arr["network"], [Protocol::ACTIVITYPUB, Protocol::DFRN]) && ($arr["parent-uri"] === $arr["uri"])) {
@@ -2410,15 +2527,15 @@ class Item
                        } else { 
                                $condition = ['id' => $arr['contact-id'], 'self' => false];
                        }
-                       DBA::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']], $condition);
+                       DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']], $condition);
                }
                // Now do the same for the system wide contacts with uid=0
                if ($arr['private'] != self::PRIVATE) {
-                       DBA::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
+                       DBA::update('contact', ['failed' => false, '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']],
+                               DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
                                        ['id' => $arr['author-id']]);
                        }
                }
@@ -2590,6 +2707,10 @@ class Item
 
                Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', Delivery::POST, $item_id);
 
+               /// @todo This code should be activated by the end of the year 2020
+               // See also "createActivityFromItem"
+               //Item::performActivity($item_id, 'announce', $uid);
+
                return false;
        }
 
@@ -2601,29 +2722,29 @@ class Item
 
                // Prevent the forwarding of posts that are forwarded
                if (!empty($datarray["extid"]) && ($datarray["extid"] == Protocol::DFRN)) {
-                       Logger::log('Already forwarded', Logger::DEBUG);
+                       Logger::info('Already forwarded');
                        return false;
                }
 
                // Prevent to forward already forwarded posts
                if ($datarray["app"] == DI::baseUrl()->getHostname()) {
-                       Logger::log('Already forwarded (second test)', Logger::DEBUG);
+                       Logger::info('Already forwarded (second test)');
                        return false;
                }
 
                // Only forward posts
                if ($datarray["verb"] != Activity::POST) {
-                       Logger::log('No post', Logger::DEBUG);
+                       Logger::info('No post');
                        return false;
                }
 
                if (($contact['network'] != Protocol::FEED) && ($datarray['private'] == self::PRIVATE)) {
-                       Logger::log('Not public', Logger::DEBUG);
+                       Logger::info('Not public');
                        return false;
                }
 
                $datarray2 = $datarray;
-               Logger::log('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), Logger::DEBUG);
+               Logger::info('remote-self start', ['contact' => $contact['url'], 'remote_self'=> $contact['remote_self'], 'item' => $datarray]);
                if ($contact['remote_self'] == 2) {
                        $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
                                        ['uid' => $contact['uid'], 'self' => true]);
@@ -2662,7 +2783,7 @@ class Item
                if ($contact['network'] != Protocol::FEED) {
                        // Store the original post
                        $result = self::insert($datarray2);
-                       Logger::log('remote-self post original item - Contact '.$contact['url'].' return '.$result.' Item '.print_r($datarray2, true), Logger::DEBUG);
+                       Logger::info('remote-self post original item', ['contact' => $contact['url'], 'result'=> $result, 'item' => $datarray2]);
                } else {
                        $datarray["app"] = "Feed";
                        $result = true;
@@ -2694,7 +2815,7 @@ class Item
                        return $s;
                }
 
-               Logger::log('check for photos', Logger::DEBUG);
+               Logger::info('check for photos');
                $site = substr(DI::baseUrl(), strpos(DI::baseUrl(), '://'));
 
                $orig_body = $s;
@@ -2708,7 +2829,7 @@ class Item
                        $img_st_close++; // make it point to AFTER the closing bracket
                        $image = substr($orig_body, $img_start + $img_st_close, $img_len);
 
-                       Logger::log('found photo ' . $image, Logger::DEBUG);
+                       Logger::info('found photo', ['image' => $image]);
 
                        if (stristr($image, $site . '/photo/')) {
                                // Only embed locally hosted photos
@@ -2747,7 +2868,7 @@ class Item
                                                        $photo_img = Photo::getImageForPhoto($photo);
                                                        // If a custom width and height were specified, apply before embedding
                                                        if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
-                                                               Logger::log('scaling photo', Logger::DEBUG);
+                                                               Logger::info('scaling photo');
 
                                                                $width = intval($match[1]);
                                                                $height = intval($match[2]);
@@ -2758,9 +2879,9 @@ class Item
                                                        $data = $photo_img->asString();
                                                        $type = $photo_img->getType();
 
-                                                       Logger::log('replacing photo', Logger::DEBUG);
+                                                       Logger::info('replacing photo');
                                                        $image = 'data:' . $type . ';base64,' . base64_encode($data);
-                                                       Logger::log('replaced: ' . $image, Logger::DATA);
+                                                       Logger::debug('replaced', ['image' => $image]);
                                                }
                                        }
                                }
@@ -2919,11 +3040,12 @@ class Item
         *
         * Toggle activities as like,dislike,attend of an item
         *
-        * @param string $item_id
+        * @param int $item_id
         * @param string $verb
         *            Activity verb. One of
         *            like, unlike, dislike, undislike, attendyes, unattendyes,
-        *            attendno, unattendno, attendmaybe, unattendmaybe
+        *            attendno, unattendno, attendmaybe, unattendmaybe,
+        *            announce, unannouce
         * @return bool
         * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         * @throws \ImagickException
@@ -2931,15 +3053,15 @@ class Item
         *            array $arr
         *            'post_id' => ID of posted item
         */
-       public static function performActivity($item_id, $verb)
+       public static function performActivity(int $item_id, string $verb, int $uid)
        {
-               if (!Session::isAuthenticated()) {
+               if (empty($uid)) {
                        return false;
                }
 
-               Logger::log('like: verb ' . $verb . ' item ' . $item_id);
+               Logger::notice('Start create activity', ['verb' => $verb, 'item' => $item_id, 'user' => $uid]);
 
-               $item = self::selectFirst(self::ITEM_FIELDLIST, ['`id` = ? OR `uri` = ?', $item_id, $item_id]);
+               $item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
                if (!DBA::isResult($item)) {
                        Logger::log('like: unknown item ' . $item_id);
                        return false;
@@ -2947,44 +3069,35 @@ class Item
 
                $item_uri = $item['uri'];
 
-               $uid = $item['uid'];
-               if (($uid == 0) && local_user()) {
-                       $uid = local_user();
+               if (!in_array($item['uid'], [0, $uid])) {
+                       return false;
                }
 
-               if (!Security::canWriteToUserWall($uid)) {
-                       Logger::log('like: unable to write on wall ' . $uid);
-                       return false;
+               if (!Item::exists(['uri-id' => $item['parent-uri-id'], 'uid' => $uid])) {
+                       $stored = self::storeForUserByUriId($item['parent-uri-id'], $uid);
+                       if (($item['parent-uri-id'] == $item['uri-id']) && !empty($stored)) {
+                               $item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $stored]);
+                               if (!DBA::isResult($item)) {
+                                       Logger::info('Could not fetch just created item - should not happen', ['stored' => $stored, 'uid' => $uid, 'item-uri' => $item_uri]);
+                                       return false;
+                               }
+                       }
                }
 
                // Retrieves the local post owner
-               $owner_self_contact = DBA::selectFirst('contact', [], ['uid' => $uid, 'self' => true]);
-               if (!DBA::isResult($owner_self_contact)) {
-                       Logger::log('like: unknown owner ' . $uid);
+               $owner = User::getOwnerDataById($uid);
+               if (empty($owner)) {
+                       Logger::info('Empty owner for user', ['uid' => $uid]);
                        return false;
                }
 
                // Retrieve the current logged in user's public contact
-               $author_id = public_contact();
-
-               $author_contact = DBA::selectFirst('contact', ['url'], ['id' => $author_id]);
-               if (!DBA::isResult($author_contact)) {
-                       Logger::log('like: unknown author ' . $author_id);
+               $author_id = Contact::getIdForURL($owner['url']);
+               if (empty($author_id)) {
+                       Logger::info('Empty public contact');
                        return false;
                }
 
-               // Contact-id is the uid-dependant author contact
-               if (local_user() == $uid) {
-                       $item_contact_id = $owner_self_contact['id'];
-               } else {
-                       $item_contact_id = Contact::getIdForURL($author_contact['url'], $uid, true);
-                       $item_contact = DBA::selectFirst('contact', [], ['id' => $item_contact_id]);
-                       if (!DBA::isResult($item_contact)) {
-                               Logger::log('like: unknown item contact ' . $item_contact_id);
-                               return false;
-                       }
-               }
-
                $activity = null;
                switch ($verb) {
                        case 'like':
@@ -3011,8 +3124,12 @@ class Item
                        case 'unfollow':
                                $activity = Activity::FOLLOW;
                                break;
+                       case 'announce':
+                       case 'unannounce':
+                               $activity = Activity::ANNOUNCE;
+                               break;
                        default:
-                               Logger::log('like: unknown verb ' . $verb . ' for item ' . $item_id);
+                               Logger::notice('unknown verb', ['verb' => $verb, 'item' => $item_id]);
                                return false;
                }
 
@@ -3083,7 +3200,7 @@ class Item
                        'guid'          => System::createUUID(),
                        'uri'           => self::newURI($item['uid']),
                        'uid'           => $item['uid'],
-                       'contact-id'    => $item_contact_id,
+                       'contact-id'    => $owner['id'],
                        'wall'          => $item['wall'],
                        'origin'        => 1,
                        'network'       => Protocol::DFRN,
@@ -3140,7 +3257,7 @@ class Item
                if (!$onlyshadow) {
                        $result = DBA::insert('thread', $item);
 
-                       Logger::log("Add thread for item ".$itemid." - ".print_r($result, true), Logger::DEBUG);
+                       Logger::info('Add thread', ['item' => $itemid, 'result' => $result]);
                }
        }
 
@@ -3170,20 +3287,20 @@ class Item
 
                $result = DBA::update('thread', $fields, ['iid' => $itemid]);
 
-               Logger::log("Update thread for item ".$itemid." - guid ".$item["guid"]." - ".(int)$result, Logger::DEBUG);
+               Logger::info('Update thread', ['item' => $itemid, 'guid' => $item["guid"], 'result' => $result]);
        }
 
        private static function deleteThread($itemid, $itemuri = "")
        {
                $item = DBA::selectFirst('thread', ['uid'], ['iid' => $itemid]);
                if (!DBA::isResult($item)) {
-                       Logger::log('No thread found for id '.$itemid, Logger::DEBUG);
+                       Logger::info('No thread found', ['id' => $itemid]);
                        return;
                }
 
                $result = DBA::delete('thread', ['iid' => $itemid], ['cascade' => false]);
 
-               Logger::log("deleteThread: Deleted thread for item ".$itemid." - ".print_r($result, true), Logger::DEBUG);
+               Logger::info('Deleted thread', ['item' => $itemid, 'result' => $result]);
 
                if ($itemuri != "") {
                        $condition = ["`uri` = ? AND NOT `deleted` AND NOT (`uid` IN (?, 0))", $itemuri, $item["uid"]];
@@ -3490,9 +3607,7 @@ class Item
         */
        public static function getPlink($item)
        {
-               $a = DI::app();
-
-               if ($a->user['nickname'] != "") {
+               if (local_user()) {
                        $ret = [
                                'href' => "display/" . $item['guid'],
                                'orig' => "display/" . $item['guid'],
@@ -3504,7 +3619,6 @@ class Item
                                $ret["href"] = DI::baseUrl()->remove($item['plink']);
                                $ret["title"] = DI::l10n()->t('link to source');
                        }
-
                } elseif (!empty($item['plink']) && ($item['private'] != self::PRIVATE)) {
                        $ret = [
                                'href' => $item['plink'],
@@ -3619,10 +3733,12 @@ class Item
         *
         * @return integer item id
         */
-       public static function fetchByLink($uri, $uid = 0)
+       public static function fetchByLink(string $uri, int $uid = 0)
        {
+               Logger::info('Trying to fetch link', ['uid' => $uid, 'uri' => $uri]);
                $item_id = self::searchByLink($uri, $uid);
                if (!empty($item_id)) {
+                       Logger::info('Link found', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
                        return $item_id;
                }
 
@@ -3633,9 +3749,11 @@ class Item
                }
 
                if (!empty($item_id)) {
+                       Logger::info('Link fetched', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
                        return $item_id;
                }
 
+               Logger::info('Link not found', ['uid' => $uid, 'uri' => $uri]);
                return 0;
        }
 
@@ -3672,7 +3790,7 @@ class Item
         *
         * @return array item array with data from the original item
         */
-       public static function addShareDataFromOriginal($item)
+       public static function addShareDataFromOriginal(array $item)
        {
                $shared = self::getShareArray($item);
                if (empty($shared)) {
@@ -3694,9 +3812,9 @@ class Item
                        }
 
                        // Otherwhise try to find (and possibly fetch) the item via the link. This should work for Diaspora and ActivityPub posts
-                       $id = self::fetchByLink($shared['link'], $uid);
+                       $id = self::fetchByLink($shared['link'] ?? '', $uid);
                        if (empty($id)) {
-                               Logger::info('Original item not found', ['url' => $shared['link'], 'callstack' => System::callstack()]);
+                               Logger::info('Original item not found', ['url' => $shared['link'] ?? '', 'callstack' => System::callstack()]);
                                return $item;
                        }