]> git.mxchange.org Git - friendica.git/blobdiff - include/items.php
Uncommon logger levels in Friendica (#5453)
[friendica.git] / include / items.php
index 6f93f78b312ee787b8e4733c0487852a192ea473..69472e96f6a9d93984753795e59747c1776fb480 100644 (file)
 /**
  * @file include/items.php
  */
-use Friendica\App;
+
 use Friendica\Content\Feature;
+use Friendica\Core\Addon;
 use Friendica\Core\Config;
+use Friendica\Core\L10n;
 use Friendica\Core\PConfig;
-use Friendica\Core\Worker;
 use Friendica\Core\System;
+use Friendica\Database\DBA;
 use Friendica\Database\DBM;
-use Friendica\Model\Contact;
-use Friendica\Model\GContact;
-use Friendica\Model\Group;
-use Friendica\Model\Term;
-use Friendica\Model\User;
 use Friendica\Model\Item;
-use Friendica\Object\Image;
 use Friendica\Protocol\DFRN;
-use Friendica\Protocol\OStatus;
 use Friendica\Protocol\Feed;
+use Friendica\Protocol\OStatus;
+use Friendica\Util\DateTimeFormat;
+use Friendica\Util\Network;
 use Friendica\Util\ParseUrl;
+use Friendica\Util\Temporal;
 
-require_once 'include/bbcode.php';
-require_once 'include/tags.php';
 require_once 'include/text.php';
-require_once 'include/threads.php';
-require_once 'include/plaintext.php';
 require_once 'mod/share.php';
 require_once 'include/enotify.php';
 
-function construct_verb($item) {
-       if ($item['verb']) {
-               return $item['verb'];
-       }
-       return ACTIVITY_POST;
-}
-
-/* limit_body_size()
- *
- *
- *
- */
-
-/**
- * The purpose of this function is to apply system message length limits to
- * imported messages without including any embedded photos in the length
- *
- * @brief Truncates imported message body string length to max_import_size
- * @param string $body
- * @return string
- */
-function limit_body_size($body)
-{
-       $maxlen = get_max_import_size();
-
-       // If the length of the body, including the embedded images, is smaller
-       // than the maximum, then don't waste time looking for the images
-       if ($maxlen && (strlen($body) > $maxlen)) {
-
-               logger('limit_body_size: the total body length exceeds the limit', LOGGER_DEBUG);
-
-               $orig_body = $body;
-               $new_body = '';
-               $textlen = 0;
-
-               $img_start = strpos($orig_body, '[img');
-               $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
-               $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
-               while (($img_st_close !== false) && ($img_end !== false)) {
-
-                       $img_st_close++; // make it point to AFTER the closing bracket
-                       $img_end += $img_start;
-                       $img_end += strlen('[/img]');
-
-                       if (! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
-                               // This is an embedded image
-
-                               if (($textlen + $img_start) > $maxlen ) {
-                                       if ($textlen < $maxlen) {
-                                               logger('limit_body_size: the limit happens before an embedded image', LOGGER_DEBUG);
-                                               $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
-                                               $textlen = $maxlen;
-                                       }
-                               } else {
-                                       $new_body = $new_body . substr($orig_body, 0, $img_start);
-                                       $textlen += $img_start;
-                               }
-
-                               $new_body = $new_body . substr($orig_body, $img_start, $img_end - $img_start);
-                       } else {
-
-                               if (($textlen + $img_end) > $maxlen ) {
-                                       if ($textlen < $maxlen) {
-                                               logger('limit_body_size: the limit happens before the end of a non-embedded image', LOGGER_DEBUG);
-                                               $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
-                                               $textlen = $maxlen;
-                                       }
-                               } else {
-                                       $new_body = $new_body . substr($orig_body, 0, $img_end);
-                                       $textlen += $img_end;
-                               }
-                       }
-                       $orig_body = substr($orig_body, $img_end);
-
-                       if ($orig_body === false) {
-                               // in case the body ends on a closing image tag
-                               $orig_body = '';
-                       }
-
-                       $img_start = strpos($orig_body, '[img');
-                       $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
-                       $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
-               }
-
-               if (($textlen + strlen($orig_body)) > $maxlen) {
-                       if ($textlen < $maxlen) {
-                               logger('limit_body_size: the limit happens after the end of the last image', LOGGER_DEBUG);
-                               $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
-                       }
-               } else {
-                       logger('limit_body_size: the text size with embedded images extracted did not violate the limit', LOGGER_DEBUG);
-                       $new_body = $new_body . $orig_body;
-               }
-
-               return $new_body;
-       } else {
-               return $body;
-       }
-}
-
-function title_is_body($title, $body) {
-
-       $title = strip_tags($title);
-       $title = trim($title);
-       $title = html_entity_decode($title, ENT_QUOTES, 'UTF-8');
-       $title = str_replace(["\n", "\r", "\t", " "], ["", "", "", ""], $title);
-
-       $body = strip_tags($body);
-       $body = trim($body);
-       $body = html_entity_decode($body, ENT_QUOTES, 'UTF-8');
-       $body = str_replace(["\n", "\r", "\t", " "], ["", "", "", ""], $body);
-
-       if (strlen($title) < strlen($body)) {
-               $body = substr($body, 0, strlen($title));
-       }
-
-       if (($title != $body) && (substr($title, -3) == "...")) {
-               $pos = strrpos($title, "...");
-               if ($pos > 0) {
-                       $title = substr($title, 0, $pos);
-                       $body = substr($body, 0, $pos);
-               }
-       }
-
-       return ($title == $body);
-}
-
-function add_page_info_data($data) {
-       call_hooks('page_info_data', $data);
+function add_page_info_data($data, $no_photos = false) {
+       Addon::callHooks('page_info_data', $data);
 
        // It maybe is a rich content, but if it does have everything that a link has,
        // then treat it that way
        if (($data["type"] == "rich") && is_string($data["title"]) &&
-               is_string($data["text"]) && (sizeof($data["images"]) > 0)) {
+               is_string($data["text"]) && !empty($data["images"])) {
                $data["type"] = "link";
        }
 
+       $data["title"] = defaults($data, "title", "");
+
        if ((($data["type"] != "link") && ($data["type"] != "video") && ($data["type"] != "photo")) || ($data["title"] == $data["url"])) {
                return "";
        }
@@ -180,23 +50,23 @@ function add_page_info_data($data) {
 
        $text = "[attachment type='".$data["type"]."'";
 
-       if ($data["text"] == "") {
+       if (empty($data["text"])) {
                $data["text"] = $data["title"];
        }
 
-       if ($data["text"] == "") {
+       if (empty($data["text"])) {
                $data["text"] = $data["url"];
        }
 
-       if ($data["url"] != "") {
+       if (!empty($data["url"])) {
                $text .= " url='".$data["url"]."'";
        }
 
-       if ($data["title"] != "") {
+       if (!empty($data["title"])) {
                $text .= " title='".$data["title"]."'";
        }
 
-       if (sizeof($data["images"]) > 0) {
+       if (!empty($data["images"])) {
                $preview = str_replace(["[", "]"], ["&#91;", "&#93;"], htmlentities($data["images"][0]["src"], ENT_QUOTES, 'UTF-8', false));
                // if the preview picture is larger than 500 pixels then show it in a larger mode
                // But only, if the picture isn't higher than large (To prevent huge posts)
@@ -214,1288 +84,123 @@ function add_page_info_data($data) {
        if (isset($data["keywords"]) && count($data["keywords"])) {
                $hashtags = "\n";
                foreach ($data["keywords"] AS $keyword) {
-                       /// @todo make a positive list of allowed characters
+                       /// @TODO make a positive list of allowed characters
                        $hashtag = str_replace([" ", "+", "/", ".", "#", "'", "’", "`", "(", ")", "„", "“"],
                                                ["", "", "", "", "", "", "", "", "", "", "", ""], $keyword);
                        $hashtags .= "#[url=" . System::baseUrl() . "/search?tag=" . rawurlencode($hashtag) . "]" . $hashtag . "[/url] ";
                }
        }
 
-       return "\n".$text.$hashtags;
-}
-
-function query_page_info($url, $no_photos = false, $photo = "", $keywords = false, $keyword_blacklist = "") {
-
-       $data = ParseUrl::getSiteinfoCached($url, true);
-
-       if ($photo != "") {
-               $data["images"][0]["src"] = $photo;
-       }
-
-       logger('fetch page info for ' . $url . ' ' . print_r($data, true), LOGGER_DEBUG);
-
-       if (!$keywords && isset($data["keywords"])) {
-               unset($data["keywords"]);
-       }
-
-       if (($keyword_blacklist != "") && isset($data["keywords"])) {
-               $list = explode(", ", $keyword_blacklist);
-               foreach ($list AS $keyword) {
-                       $keyword = trim($keyword);
-                       $index = array_search($keyword, $data["keywords"]);
-                       if ($index !== false) {
-                               unset($data["keywords"][$index]);
-                       }
-               }
-       }
-
-       return $data;
-}
-
-function add_page_keywords($url, $no_photos = false, $photo = "", $keywords = false, $keyword_blacklist = "") {
-       $data = query_page_info($url, $no_photos, $photo, $keywords, $keyword_blacklist);
-
-       $tags = "";
-       if (isset($data["keywords"]) && count($data["keywords"])) {
-               foreach ($data["keywords"] AS $keyword) {
-                       $hashtag = str_replace([" ", "+", "/", ".", "#", "'"],
-                               ["", "", "", "", "", ""], $keyword);
-
-                       if ($tags != "") {
-                               $tags .= ", ";
-                       }
-
-                       $tags .= "#[url=" . System::baseUrl() . "/search?tag=" . rawurlencode($hashtag) . "]" . $hashtag . "[/url]";
-               }
-       }
-
-       return $tags;
-}
-
-function add_page_info($url, $no_photos = false, $photo = "", $keywords = false, $keyword_blacklist = "") {
-       $data = query_page_info($url, $no_photos, $photo, $keywords, $keyword_blacklist);
-
-       $text = add_page_info_data($data);
-
-       return $text;
-}
-
-function add_page_info_to_body($body, $texturl = false, $no_photos = false) {
-
-       logger('add_page_info_to_body: fetch page info for body ' . $body, LOGGER_DEBUG);
-
-       $URLSearchString = "^\[\]";
-
-       // Fix for Mastodon where the mentions are in a different format
-       $body = preg_replace("/\[url\=([$URLSearchString]*)\]([#!@])(.*?)\[\/url\]/ism",
-               '$2[url=$1]$3[/url]', $body);
-
-       // Adding these spaces is a quick hack due to my problems with regular expressions :)
-       preg_match("/[^!#@]\[url\]([$URLSearchString]*)\[\/url\]/ism", " " . $body, $matches);
-
-       if (!$matches) {
-               preg_match("/[^!#@]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", " " . $body, $matches);
-       }
-
-       // Convert urls without bbcode elements
-       if (!$matches && $texturl) {
-               preg_match("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", " ".$body, $matches);
-
-               // Yeah, a hack. I really hate regular expressions :)
-               if ($matches) {
-                       $matches[1] = $matches[2];
-               }
-       }
-
-       if ($matches) {
-               $footer = add_page_info($matches[1], $no_photos);
-       }
-
-       // Remove the link from the body if the link is attached at the end of the post
-       if (isset($footer) && (trim($footer) != "") && (strpos($footer, $matches[1]))) {
-               $removedlink = trim(str_replace($matches[1], "", $body));
-               if (($removedlink == "") || strstr($body, $removedlink)) {
-                       $body = $removedlink;
-               }
-
-               $url = str_replace(['/', '.'], ['\/', '\.'], $matches[1]);
-               $removedlink = preg_replace("/\[url\=" . $url . "\](.*?)\[\/url\]/ism", '', $body);
-               if (($removedlink == "") || strstr($body, $removedlink)) {
-                       $body = $removedlink;
-               }
-       }
-
-       // Add the page information to the bottom
-       if (isset($footer) && (trim($footer) != "")) {
-               $body .= $footer;
-       }
-
-       return $body;
-}
-
-/**
- * Adds a "lang" specification in a "postopts" element of given $arr,
- * if possible and not already present.
- * Expects "body" element to exist in $arr.
- *
- * @todo Add a parameter to request forcing override
- */
-function item_add_language_opt(&$arr) {
-
-       if (version_compare(PHP_VERSION, '5.3.0', '<')) {
-                // LanguageDetect.php not available ?
-               return;
-       }
-
-       if (x($arr, 'postopts') ) {
-               if (strstr($arr['postopts'], 'lang=') ) {
-                       // do not override
-                       /// @TODO Add parameter to request overriding
-                       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 $host (Optional) hostname for the GUID prefix
- * @return string unique guid
- */
-function uri_to_guid($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);
-
-       // When the hostname isn't given, we take it from the uri
-       if ($host == "") {
-               // Is it in the format data@host.tld?
-               if ((count($parsed) == 1) && strstr($uri, '@')) {
-                       $mailparts = explode('@', $uri);
-                       $host = array_pop($mailparts);
-               } else {
-                       $host = $parsed["host"];
-               }
-       }
-
-       // 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 Store the conversation data
- *
- * @param array $arr Item array with conversation data
- * @return array Item array with removed conversation data
- */
-function store_conversation($arr) {
-       if (in_array(defaults($arr, 'network', NETWORK_PHANTOM), [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS]) && !empty($arr['uri'])) {
-               $conversation = ['item-uri' => $arr['uri'], 'received' => DBM::date()];
-
-               if (isset($arr['parent-uri']) && ($arr['parent-uri'] != $arr['uri'])) {
-                       $conversation['reply-to-uri'] = $arr['parent-uri'];
-               }
-               if (isset($arr['thr-parent']) && ($arr['thr-parent'] != $arr['uri'])) {
-                       $conversation['reply-to-uri'] = $arr['thr-parent'];
-               }
-
-               if (isset($arr['conversation-uri'])) {
-                       $conversation['conversation-uri'] = $arr['conversation-uri'];
-               }
-
-               if (isset($arr['conversation-href'])) {
-                       $conversation['conversation-href'] = $arr['conversation-href'];
-               }
-
-               if (isset($arr['protocol'])) {
-                       $conversation['protocol'] = $arr['protocol'];
-               }
-
-               if (isset($arr['source'])) {
-                       $conversation['source'] = $arr['source'];
-               }
-
-               $old_conv = dba::fetch_first("SELECT `item-uri`, `reply-to-uri`, `conversation-uri`, `conversation-href`, `protocol`, `source`
-                               FROM `conversation` WHERE `item-uri` = ?", $conversation['item-uri']);
-               if (DBM::is_result($old_conv)) {
-                       // Don't update when only the source has changed.
-                       // Only do this when there had been no source before.
-                       if ($old_conv['source'] != '') {
-                               unset($old_conv['source']);
-                       }
-                       // Update structure data all the time but the source only when its from a better protocol.
-                       if (($old_conv['protocol'] < $conversation['protocol']) && ($old_conv['protocol'] != 0)) {
-                               unset($conversation['protocol']);
-                               unset($conversation['source']);
-                       }
-                       if (!dba::update('conversation', $conversation, ['item-uri' => $conversation['item-uri']], $old_conv)) {
-                               logger('Conversation: update for '.$conversation['item-uri'].' from '.$conv['protocol'].' to '.$conversation['protocol'].' failed', LOGGER_DEBUG);
-                       }
-               } else {
-                       if (!dba::insert('conversation', $conversation, true)) {
-                               logger('Conversation: insert for '.$conversation['item-uri'].' (protocol '.$conversation['protocol'].') failed', LOGGER_DEBUG);
-                       }
-               }
-       }
-
-       unset($arr['conversation-uri']);
-       unset($arr['conversation-href']);
-       unset($arr['protocol']);
-       unset($arr['source']);
-
-       return $arr;
-}
-
-/// @TODO add type-hint array
-function item_store($arr, $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) {
-               $arr['wall'] = 1;
-               $arr['type'] = 'wall';
-               $arr['origin'] = 1;
-               $arr['last-child'] = 1;
-               $arr['network'] = NETWORK_DFRN;
-               $arr['protocol'] = PROTOCOL_DFRN;
-
-               // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
-               // In difference to the call to "uri_to_guid" several lines below we add the hash of our own host.
-               // This is done because our host is the original creator of the post.
-               if (!isset($arr['guid'])) {
-                       if (isset($arr['plink'])) {
-                               $arr['guid'] = uri_to_guid($arr['plink'], $a->get_hostname());
-                       } elseif (isset($arr['uri'])) {
-                               $arr['guid'] = uri_to_guid($arr['uri'], $a->get_hostname());
-                       }
-               }
-       } else {
-               $arr['network'] = trim(defaults($arr, 'network', NETWORK_PHANTOM));
-       }
-
-       if ($notify) {
-               $guid_prefix = "";
-       } elseif ((trim($arr['guid']) == "") && (trim($arr['plink']) != "")) {
-               $arr['guid'] = uri_to_guid($arr['plink']);
-       } elseif ((trim($arr['guid']) == "") && (trim($arr['uri']) != "")) {
-               $arr['guid'] = uri_to_guid($arr['uri']);
-       } else {
-               $parsed = parse_url($arr["author-link"]);
-               $guid_prefix = hash("crc32", $parsed["host"]);
-       }
-
-       $arr['guid']          = ((x($arr, 'guid'))          ? notags(trim($arr['guid']))          : get_guid(32, $guid_prefix));
-       $arr['uri']           = ((x($arr, 'uri'))           ? notags(trim($arr['uri']))           : item_new_uri($a->get_hostname(), $uid, $arr['guid']));
-
-       // Store conversation data
-       $arr = store_conversation($arr);
-
-       /*
-        * If a Diaspora signature structure was passed in, pull it out of the
-        * item array and set it aside for later storage.
-        */
-
-       $dsprsig = null;
-       if (x($arr, 'dsprsig')) {
-               $encoded_signature = $arr['dsprsig'];
-               $dsprsig = json_decode(base64_decode($arr['dsprsig']));
-               unset($arr['dsprsig']);
-       }
-
-       // Converting the plink
-       /// @todo Check if this is really still needed
-       if ($arr['network'] == NETWORK_OSTATUS) {
-               if (isset($arr['plink'])) {
-                       $arr['plink'] = OStatus::convertHref($arr['plink']);
-               } elseif (isset($arr['uri'])) {
-                       $arr['plink'] = OStatus::convertHref($arr['uri']);
-               }
-       }
-
-       if (x($arr, 'gravity')) {
-               $arr['gravity'] = intval($arr['gravity']);
-       } elseif ($arr['parent-uri'] === $arr['uri']) {
-               $arr['gravity'] = 0;
-       } elseif (activity_match($arr['verb'],ACTIVITY_POST)) {
-               $arr['gravity'] = 6;
-       } else {
-               $arr['gravity'] = 6;   // extensible catchall
-       }
-
-       if (! x($arr, 'type')) {
-               $arr['type']      = 'remote';
-       }
-
-       $uid = intval($arr['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($arr['created'])) {
-               $expire_date = time() - ($expire_interval * 86400);
-               $created_date = strtotime($arr['created']);
-               if ($created_date < $expire_date) {
-                       logger('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($arr,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($arr['network'], [NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS, ""])) {
-               $r = q("SELECT `id`, `network` FROM `item` WHERE `uri` = '%s' AND `uid` = %d AND `network` IN ('%s', '%s', '%s')  LIMIT 1",
-                               dbesc(trim($arr['uri'])),
-                               intval($uid),
-                               dbesc(NETWORK_DIASPORA),
-                               dbesc(NETWORK_DFRN),
-                               dbesc(NETWORK_OSTATUS)
-                       );
-               if (DBM::is_result($r)) {
-                       // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
-                       if ($uid != 0) {
-                               logger("Item with uri ".$arr['uri']." already existed for user ".$uid." with id ".$r[0]["id"]." target network ".$r[0]["network"]." - new network: ".$arr['network']);
-                       }
-
-                       return $r[0]["id"];
-               }
-       }
-
-       /// @TODO old-lost code?
-       // Shouldn't happen but we want to make absolutely sure it doesn't leak from a plugin.
-       // Deactivated, since the bbcode parser can handle with it - and it destroys posts with some smileys that contain "<"
-       //if ((strpos($arr['body'],'<') !== false) || (strpos($arr['body'],'>') !== false))
-       //      $arr['body'] = strip_tags($arr['body']);
-
-       item_add_language_opt($arr);
-
-       $arr['wall']          = ((x($arr, 'wall'))          ? intval($arr['wall'])                : 0);
-       $arr['extid']         = ((x($arr, 'extid'))         ? notags(trim($arr['extid']))         : '');
-       $arr['author-name']   = ((x($arr, 'author-name'))   ? trim($arr['author-name'])   : '');
-       $arr['author-link']   = ((x($arr, 'author-link'))   ? notags(trim($arr['author-link']))   : '');
-       $arr['author-avatar'] = ((x($arr, 'author-avatar')) ? notags(trim($arr['author-avatar'])) : '');
-       $arr['owner-name']    = ((x($arr, 'owner-name'))    ? trim($arr['owner-name'])    : '');
-       $arr['owner-link']    = ((x($arr, 'owner-link'))    ? notags(trim($arr['owner-link']))    : '');
-       $arr['owner-avatar']  = ((x($arr, 'owner-avatar'))  ? notags(trim($arr['owner-avatar']))  : '');
-       $arr['received']      = ((x($arr, 'received') !== false) ? datetime_convert('UTC','UTC', $arr['received']) : datetime_convert());
-       $arr['created']       = ((x($arr, 'created') !== false) ? datetime_convert('UTC','UTC', $arr['created']) : $arr['received']);
-       $arr['edited']        = ((x($arr, 'edited') !== false) ? datetime_convert('UTC','UTC', $arr['edited']) : $arr['created']);
-       $arr['changed']       = ((x($arr, 'changed') !== false) ? datetime_convert('UTC','UTC', $arr['changed']) : $arr['created']);
-       $arr['commented']     = ((x($arr, 'commented') !== false) ? datetime_convert('UTC','UTC', $arr['commented']) : $arr['created']);
-       $arr['title']         = ((x($arr, 'title'))         ? trim($arr['title'])         : '');
-       $arr['location']      = ((x($arr, 'location'))      ? trim($arr['location'])      : '');
-       $arr['coord']         = ((x($arr, 'coord'))         ? notags(trim($arr['coord']))         : '');
-       $arr['last-child']    = ((x($arr, 'last-child'))    ? intval($arr['last-child'])          : 0 );
-       $arr['visible']       = ((x($arr, 'visible') !== false) ? intval($arr['visible'])         : 1 );
-       $arr['deleted']       = 0;
-       $arr['parent-uri']    = ((x($arr, 'parent-uri'))    ? notags(trim($arr['parent-uri']))    : $arr['uri']);
-       $arr['verb']          = ((x($arr, 'verb'))          ? notags(trim($arr['verb']))          : '');
-       $arr['object-type']   = ((x($arr, 'object-type'))   ? notags(trim($arr['object-type']))   : '');
-       $arr['object']        = ((x($arr, 'object'))        ? trim($arr['object'])                : '');
-       $arr['target-type']   = ((x($arr, 'target-type'))   ? notags(trim($arr['target-type']))   : '');
-       $arr['target']        = ((x($arr, 'target'))        ? trim($arr['target'])                : '');
-       $arr['plink']         = ((x($arr, 'plink'))         ? notags(trim($arr['plink']))         : '');
-       $arr['allow_cid']     = ((x($arr, 'allow_cid'))     ? trim($arr['allow_cid'])             : '');
-       $arr['allow_gid']     = ((x($arr, 'allow_gid'))     ? trim($arr['allow_gid'])             : '');
-       $arr['deny_cid']      = ((x($arr, 'deny_cid'))      ? trim($arr['deny_cid'])              : '');
-       $arr['deny_gid']      = ((x($arr, 'deny_gid'))      ? trim($arr['deny_gid'])              : '');
-       $arr['private']       = ((x($arr, 'private'))       ? intval($arr['private'])             : 0 );
-       $arr['bookmark']      = ((x($arr, 'bookmark'))      ? intval($arr['bookmark'])            : 0 );
-       $arr['body']          = ((x($arr, 'body'))          ? trim($arr['body'])                  : '');
-       $arr['tag']           = ((x($arr, 'tag'))           ? notags(trim($arr['tag']))           : '');
-       $arr['attach']        = ((x($arr, 'attach'))        ? notags(trim($arr['attach']))        : '');
-       $arr['app']           = ((x($arr, 'app'))           ? notags(trim($arr['app']))           : '');
-       $arr['origin']        = ((x($arr, 'origin'))        ? intval($arr['origin'])              : 0 );
-       $arr['postopts']      = ((x($arr, 'postopts'))      ? trim($arr['postopts'])              : '');
-       $arr['resource-id']   = ((x($arr, 'resource-id'))   ? trim($arr['resource-id'])           : '');
-       $arr['event-id']      = ((x($arr, 'event-id'))      ? intval($arr['event-id'])            : 0 );
-       $arr['inform']        = ((x($arr, 'inform'))        ? trim($arr['inform'])                : '');
-       $arr['file']          = ((x($arr, 'file'))          ? trim($arr['file'])                  : '');
-
-       // When there is no content then we don't post it
-       if ($arr['body'].$arr['title'] == '') {
-               return 0;
-       }
-
-       // Items cannot be stored before they happen ...
-       if ($arr['created'] > datetime_convert()) {
-               $arr['created'] = datetime_convert();
-       }
-
-       // We haven't invented time travel by now.
-       if ($arr['edited'] > datetime_convert()) {
-               $arr['edited'] = datetime_convert();
-       }
-
-       if (($arr['author-link'] == "") && ($arr['owner-link'] == "")) {
-               logger("Both author-link and owner-link are empty. Called by: " . System::callstack(), LOGGER_DEBUG);
-       }
-
-       if ($arr['plink'] == "") {
-               $arr['plink'] = System::baseUrl() . '/display/' . urlencode($arr['guid']);
-       }
-
-       if ($arr['network'] == NETWORK_PHANTOM) {
-               $r = q("SELECT `network` FROM `contact` WHERE `network` IN ('%s', '%s', '%s') AND `nurl` = '%s' AND `uid` = %d LIMIT 1",
-                       dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_OSTATUS),
-                       dbesc(normalise_link($arr['author-link'])),
-                       intval($arr['uid'])
-               );
-
-               if (!DBM::is_result($r)) {
-                       $r = q("SELECT `network` FROM `gcontact` WHERE `network` IN ('%s', '%s', '%s') AND `nurl` = '%s' LIMIT 1",
-                               dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_OSTATUS),
-                               dbesc(normalise_link($arr['author-link']))
-                       );
-               }
-
-               if (!DBM::is_result($r)) {
-                       $r = q("SELECT `network` FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
-                               intval($arr['contact-id']),
-                               intval($arr['uid'])
-                       );
-               }
-
-               if (DBM::is_result($r)) {
-                       $arr['network'] = $r[0]["network"];
-               }
-
-               // Fallback to friendica (why is it empty in some cases?)
-               if ($arr['network'] == "") {
-                       $arr['network'] = NETWORK_DFRN;
-               }
-
-               logger("item_store: Set network to " . $arr["network"] . " for " . $arr["uri"], LOGGER_DEBUG);
-       }
-
-       // The contact-id should be set before "item_store" was called - but there seems to be some issues
-       if ($arr["contact-id"] == 0) {
-               /*
-                * First we are looking for a suitable contact that matches with the author of the post
-                * This is done only for comments (See below explanation at "gcontact-id")
-                */
-               if ($arr['parent-uri'] != $arr['uri']) {
-                       $arr["contact-id"] = Contact::getIdForURL($arr['author-link'], $uid);
-               }
-
-               // If not present then maybe the owner was found
-               if ($arr["contact-id"] == 0) {
-                       $arr["contact-id"] = Contact::getIdForURL($arr['owner-link'], $uid);
-               }
-
-               // Still missing? Then use the "self" contact of the current user
-               if ($arr["contact-id"] == 0) {
-                       $r = q("SELECT `id` FROM `contact` WHERE `self` AND `uid` = %d", intval($uid));
-
-                       if (DBM::is_result($r)) {
-                               $arr["contact-id"] = $r[0]["id"];
-                       }
-               }
-
-               logger("Contact-id was missing for post ".$arr["guid"]." from user id ".$uid." - now set to ".$arr["contact-id"], LOGGER_DEBUG);
-       }
-
-       if (!x($arr, "gcontact-id")) {
-               /*
-                * The gcontact should mostly behave like the contact. But is is supposed to be global for the system.
-                * This means that wall posts, repeated posts, etc. should have the gcontact id of the owner.
-                * On comments the author is the better choice.
-                */
-               if ($arr['parent-uri'] === $arr['uri']) {
-                       $arr["gcontact-id"] = GContact::getId(["url" => $arr['owner-link'], "network" => $arr['network'],
-                                                                "photo" => $arr['owner-avatar'], "name" => $arr['owner-name']]);
-               } else {
-                       $arr["gcontact-id"] = GContact::getId(["url" => $arr['author-link'], "network" => $arr['network'],
-                                                                "photo" => $arr['author-avatar'], "name" => $arr['author-name']]);
-               }
-       }
-
-       if ($arr["author-id"] == 0) {
-               $arr["author-id"] = Contact::getIdForURL($arr["author-link"], 0);
-       }
-
-       if (Contact::isBlocked($arr["author-id"])) {
-               logger('Contact '.$arr["author-id"].' is blocked, item '.$arr["uri"].' will not be stored');
-               return 0;
-       }
-
-       if ($arr["owner-id"] == 0) {
-               $arr["owner-id"] = Contact::getIdForURL($arr["owner-link"], 0);
-       }
-
-       if (Contact::isBlocked($arr["owner-id"])) {
-               logger('Contact '.$arr["owner-id"].' is blocked, item '.$arr["uri"].' will not be stored');
-               return 0;
-       }
-
-       if ($arr['guid'] != "") {
-               // Checking if there is already an item with the same guid
-               logger('checking for an item for user '.$arr['uid'].' on network '.$arr['network'].' with the guid '.$arr['guid'], LOGGER_DEBUG);
-               $r = q("SELECT `guid` FROM `item` WHERE `guid` = '%s' AND `network` = '%s' AND `uid` = '%d' LIMIT 1",
-                       dbesc($arr['guid']), dbesc($arr['network']), intval($arr['uid']));
-
-               if (DBM::is_result($r)) {
-                       logger('found item with guid '.$arr['guid'].' for user '.$arr['uid'].' on network '.$arr['network'], LOGGER_DEBUG);
-                       return 0;
-               }
-       }
-
-       // Check for hashtags in the body and repair or add hashtag links
-       item_body_set_hashtags($arr);
-
-       $arr['thr-parent'] = $arr['parent-uri'];
-
-       if ($arr['parent-uri'] === $arr['uri']) {
-               $parent_id = 0;
-               $parent_deleted = 0;
-               $allow_cid = $arr['allow_cid'];
-               $allow_gid = $arr['allow_gid'];
-               $deny_cid  = $arr['deny_cid'];
-               $deny_gid  = $arr['deny_gid'];
-               $notify_type = 'wall-new';
-       } else {
-
-               // find the parent and snarf the item id and ACLs
-               // and anything else we need to inherit
-
-               $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d ORDER BY `id` ASC LIMIT 1",
-                       dbesc($arr['parent-uri']),
-                       intval($arr['uid'])
-               );
-
-               if (DBM::is_result($r)) {
-
-                       // 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 ($r[0]['uri'] != $r[0]['parent-uri']) {
-                               $arr['parent-uri'] = $r[0]['parent-uri'];
-                               $z = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `parent-uri` = '%s' AND `uid` = %d
-                                       ORDER BY `id` ASC LIMIT 1",
-                                       dbesc($r[0]['parent-uri']),
-                                       dbesc($r[0]['parent-uri']),
-                                       intval($arr['uid'])
-                               );
-
-                               if (DBM::is_result($z)) {
-                                       $r = $z;
-                               }
-                       }
-
-                       $parent_id      = $r[0]['id'];
-                       $parent_deleted = $r[0]['deleted'];
-                       $allow_cid      = $r[0]['allow_cid'];
-                       $allow_gid      = $r[0]['allow_gid'];
-                       $deny_cid       = $r[0]['deny_cid'];
-                       $deny_gid       = $r[0]['deny_gid'];
-                       $arr['wall']    = $r[0]['wall'];
-                       $notify_type    = 'comment-new';
-
-                       /*
-                        * If the parent is private, force privacy for the entire conversation
-                        * This differs from the above settings as it subtly allows comments from
-                        * email correspondents to be private even if the overall thread is not.
-                        */
-                       if ($r[0]['private']) {
-                               $arr['private'] = $r[0]['private'];
-                       }
-
-                       /*
-                        * Edge case. We host a public forum that was originally posted to privately.
-                        * The original author commented, but as this is a comment, the permissions
-                        * weren't fixed up so it will still show the comment as private unless we fix it here.
-                        */
-                       if ((intval($r[0]['forum_mode']) == 1) && $r[0]['private']) {
-                               $arr['private'] = 0;
-                       }
-
-                       // If its a post from myself then tag the thread as "mention"
-                       logger("item_store: Checking if parent ".$parent_id." has to be tagged as mention for user ".$arr['uid'], LOGGER_DEBUG);
-                       $u = q("SELECT `nickname` FROM `user` WHERE `uid` = %d", intval($arr['uid']));
-                       if (DBM::is_result($u)) {
-                               $self = normalise_link(System::baseUrl() . '/profile/' . $u[0]['nickname']);
-                               logger("item_store: 'myself' is ".$self." for parent ".$parent_id." checking against ".$arr['author-link']." and ".$arr['owner-link'], LOGGER_DEBUG);
-                               if ((normalise_link($arr['author-link']) == $self) || (normalise_link($arr['owner-link']) == $self)) {
-                                       dba::update('thread', ['mention' => true], ['iid' => $parent_id]);
-                                       logger("item_store: tagged thread ".$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('item_store: $force_parent=true, reply converted to top-level post.');
-                               $parent_id = 0;
-                               $arr['parent-uri'] = $arr['uri'];
-                               $arr['gravity'] = 0;
-                       } else {
-                               logger('item_store: item parent '.$arr['parent-uri'].' for '.$arr['uid'].' was not found - ignoring item');
-                               return 0;
-                       }
-
-                       $parent_deleted = 0;
-               }
-       }
-
-       $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `network` IN ('%s', '%s') AND `uid` = %d LIMIT 1",
-               dbesc($arr['uri']),
-               dbesc($arr['network']),
-               dbesc(NETWORK_DFRN),
-               intval($arr['uid'])
-       );
-       if (DBM::is_result($r)) {
-               logger('duplicated item with the same uri found. '.print_r($arr,true));
-               return 0;
-       }
-
-       // On Friendica and Diaspora the GUID is unique
-       if (in_array($arr['network'], [NETWORK_DFRN, NETWORK_DIASPORA])) {
-               $r = q("SELECT `id` FROM `item` WHERE `guid` = '%s' AND `uid` = %d LIMIT 1",
-                       dbesc($arr['guid']),
-                       intval($arr['uid'])
-               );
-               if (DBM::is_result($r)) {
-                       logger('duplicated item with the same guid found. '.print_r($arr,true));
-                       return 0;
-               }
-       } else {
-               // Check for an existing post with the same content. There seems to be a problem with OStatus.
-               $r = q("SELECT `id` FROM `item` WHERE `body` = '%s' AND `network` = '%s' AND `created` = '%s' AND `contact-id` = %d AND `uid` = %d LIMIT 1",
-                       dbesc($arr['body']),
-                       dbesc($arr['network']),
-                       dbesc($arr['created']),
-                       intval($arr['contact-id']),
-                       intval($arr['uid'])
-               );
-               if (DBM::is_result($r)) {
-                       logger('duplicated item with the same body found. '.print_r($arr,true));
-                       return 0;
-               }
-       }
-
-       // Is this item available in the global items (with uid=0)?
-       if ($arr["uid"] == 0) {
-               $arr["global"] = true;
-
-               // Set the global flag on all items if this was a global item entry
-               dba::update('item', ['global' => true], ['uri' => $arr["uri"]]);
-       } else {
-               $isglobal = q("SELECT `global` FROM `item` WHERE `uid` = 0 AND `uri` = '%s'", dbesc($arr["uri"]));
-
-               $arr["global"] = (DBM::is_result($isglobal) && count($isglobal) > 0);
-       }
-
-       // ACL settings
-       if (strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid)) {
-               $private = 1;
-       } else {
-               $private = $arr['private'];
-       }
-
-       $arr["allow_cid"] = $allow_cid;
-       $arr["allow_gid"] = $allow_gid;
-       $arr["deny_cid"] = $deny_cid;
-       $arr["deny_gid"] = $deny_gid;
-       $arr["private"] = $private;
-       $arr["deleted"] = $parent_deleted;
-
-       // Fill the cache field
-       put_item_in_cache($arr);
-
-       if ($notify) {
-               call_hooks('post_local', $arr);
-       } else {
-               call_hooks('post_remote', $arr);
-       }
-
-       // This array field is used to trigger some automatic reactions
-       // It is mainly used in the "post_local" hook.
-       unset($arr['api_source']);
-
-       if (x($arr, 'cancel')) {
-               logger('item_store: post cancelled by plugin.');
-               return 0;
-       }
-
-       /*
-        * Check for already added items.
-        * There is a timing issue here that sometimes creates double postings.
-        * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
-        */
-       if ($arr["uid"] == 0) {
-               $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = 0 LIMIT 1", dbesc(trim($arr['uri'])));
-               if (DBM::is_result($r)) {
-                       logger('Global item already stored. URI: '.$arr['uri'].' on network '.$arr['network'], LOGGER_DEBUG);
-                       return 0;
-               }
-       }
-
-       logger('item_store: ' . print_r($arr,true), LOGGER_DATA);
-
-       dba::transaction();
-       $r = dba::insert('item', $arr);
-
-       // When the item was successfully stored we fetch the ID of the item.
-       if (DBM::is_result($r)) {
-               $current_post = dba::lastInsertId();
-       } else {
-               // This can happen - for example - if there are locking timeouts.
-               dba::rollback();
-
-               // Store the data into a spool file so that we can try again later.
-
-               // At first we restore the Diaspora signature that we removed above.
-               if (isset($encoded_signature)) {
-                       $arr['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($spool, json_encode($arr));
-                       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.
-       $r = q("SELECT COUNT(*) AS `entries` FROM `item` WHERE `uri` = '%s' AND `uid` = %d AND `network` = '%s'",
-               dbesc($arr['uri']),
-               intval($arr['uid']),
-               dbesc($arr['network'])
-       );
-
-       if (!DBM::is_result($r)) {
-               // This shouldn't happen, since COUNT always works when the database connection is there.
-               logger("We couldn't count the stored entries. Very strange ...");
-               dba::rollback();
-               return 0;
-       }
-
-       if ($r[0]["entries"] > 1) {
-               // There are duplicates. We delete our just created entry.
-               logger('Duplicated post occurred. uri = ' . $arr['uri'] . ' uid = ' . $arr['uid']);
-
-               // Yes, we could do a rollback here - but we are having many users with MyISAM.
-               dba::delete('item', ['id' => $current_post]);
-               dba::commit();
-               return 0;
-       } elseif ($r[0]["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('item_store: created item '.$current_post);
-       item_set_last_item($arr);
-
-       if (!$parent_id || ($arr['parent-uri'] === $arr['uri'])) {
-               $parent_id = $current_post;
-       }
-
-       // Set parent id
-       dba::update('item', ['parent' => $parent_id], ['id' => $current_post]);
-
-       $arr['id'] = $current_post;
-       $arr['parent'] = $parent_id;
-
-       // update the commented timestamp on the parent
-       // Only update "commented" if it is really a comment
-       if (($arr['verb'] == ACTIVITY_POST) || !Config::get("system", "like_no_comment")) {
-               dba::update('item', ['commented' => datetime_convert(), 'changed' => datetime_convert()], ['id' => $parent_id]);
-       } else {
-               dba::update('item', ['changed' => datetime_convert()], ['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]);
-       }
-
-       $deleted = tag_deliver($arr['uid'], $current_post);
-
-       /*
-        * current post can be deleted if is for a community page and no mention are
-        * in it.
-        */
-       if (!$deleted && !$dontcache) {
-
-               $r = q('SELECT * FROM `item` WHERE `id` = %d', intval($current_post));
-               if ((DBM::is_result($r)) && (count($r) == 1)) {
-                       if ($notify) {
-                               call_hooks('post_local_end', $r[0]);
-                       } else {
-                               call_hooks('post_remote_end', $r[0]);
-                       }
-               } else {
-                       logger('item_store: new item not found in DB, id ' . $current_post);
-               }
-       }
-
-       if ($arr['parent-uri'] === $arr['uri']) {
-               add_thread($current_post);
-       } else {
-               update_thread($parent_id);
-       }
-
-       dba::commit();
-
-       /*
-        * Due to deadlock issues with the "term" table we are doing these steps after the commit.
-        * This is not perfect - but a workable solution until we found the reason for the problem.
-        */
-       create_tags_from_item($current_post);
-       Term::createFromItem($current_post);
-
-       /*
-        * If this is now the last-child, force all _other_ children of this parent to *not* be last-child
-        * It is done after the transaction to avoid dead locks.
-        */
-       if ($arr['last-child']) {
-               q("UPDATE `item` SET `last-child` = 0 WHERE `parent-uri` = '%s' AND `uid` = %d AND `id` != %d",
-                       dbesc($arr['uri']),
-                       intval($arr['uid']),
-                       intval($current_post)
-               );
-       }
-
-       if ($arr['parent-uri'] === $arr['uri']) {
-               Item::addShadow($current_post);
-       } else {
-               Item::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 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 $arr Contains the just posted item record
- */
-function item_set_last_item($arr) {
-       // Unarchive the author
-       $contact = dba::selectFirst('contact', [], ['id' => $arr["author-link"]]);
-       if ($contact['term-date'] > NULL_DATE) {
-                Contact::unmarkForArchival($contact);
-       }
-
-       // Unarchive the contact if it is a toplevel posting
-       if ($arr["parent-uri"] === $arr["uri"]) {
-               $contact = dba::selectFirst('contact', [], ['id' => $arr["contact-id"]]);
-               if ($contact['term-date'] > NULL_DATE) {
-                        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"])) {
-               $isforum = q("SELECT `forum` FROM `contact` WHERE `id` = %d AND `forum`",
-                               intval($arr['contact-id']));
-               if (DBM::is_result($isforum)) {
-                       $update = true;
-               }
-       }
-
-       if ($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' => $arr['author-id']]);
-               }
-       }
-}
-
-function item_body_set_hashtags(&$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("#", "&num;", $match[1]) . "]" . str_replace("#", "&num;", $match[2]) . "[/url]");
-               }, $item["body"]);
-
-       $item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
-               function ($match) {
-                       return ("[bookmark=" . str_replace("#", "&num;", $match[1]) . "]" . str_replace("#", "&num;", $match[2]) . "[/bookmark]");
-               }, $item["body"]);
-
-       $item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
-               function ($match) {
-                       return ("[attachment " . str_replace("#", "&num;", $match[1]) . "]" . $match[2] . "[/attachment]");
-               }, $item["body"]);
-
-       // Repair recursive urls
-       $item["body"] = preg_replace("/&num;\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
-                       "&num;$2", $item["body"]);
-
-       foreach ($tags as $tag) {
-               if ((strpos($tag, '#') !== 0) || (strpos($tag, '[url='))) {
-                       continue;
-               }
-
-               $basetag = str_replace('_',' ',substr($tag,1));
-
-               $newtag = '#[url=' . System::baseUrl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
-
-               $item["body"] = str_replace($tag, $newtag, $item["body"]);
-
-               if (!stristr($item["tag"], "/search?tag=" . $basetag . "]" . $basetag . "[/url]")) {
-                       if (strlen($item["tag"])) {
-                               $item["tag"] = ','.$item["tag"];
-                       }
-                       $item["tag"] = $newtag.$item["tag"];
-               }
-       }
-
-       // Convert back the masked hashtags
-       $item["body"] = str_replace("&num;", "#", $item["body"]);
-}
-
-function get_item_guid($id) {
-       $r = q("SELECT `guid` FROM `item` WHERE `id` = %d LIMIT 1", intval($id));
-       if (DBM::is_result($r)) {
-               return $r[0]["guid"];
-       } else {
-               /// @TODO This else-block can be elimited again
-               return "";
-       }
-}
-
-function get_item_id($guid, $uid = 0) {
-
-       $nick = "";
-       $id = 0;
-
-       if ($uid == 0) {
-               $uid == local_user();
-       }
-
-       // Does the given user have this item?
-       if ($uid) {
-               $r = q("SELECT `item`.`id`, `user`.`nickname` FROM `item` INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
-                       WHERE `item`.`visible` = 1 AND `item`.`deleted` = 0 AND `item`.`moderated` = 0
-                               AND `item`.`guid` = '%s' AND `item`.`uid` = %d", dbesc($guid), intval($uid));
-               if (DBM::is_result($r)) {
-                       $id = $r[0]["id"];
-                       $nick = $r[0]["nickname"];
-               }
-       }
-
-       // Or is it anywhere on the server?
-       if ($nick == "") {
-               $r = q("SELECT `item`.`id`, `user`.`nickname` FROM `item` INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
-                       WHERE `item`.`visible` = 1 AND `item`.`deleted` = 0 AND `item`.`moderated` = 0
-                               AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
-                               AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
-                               AND `item`.`private` = 0 AND `item`.`wall` = 1
-                               AND `item`.`guid` = '%s'", dbesc($guid));
-               if (DBM::is_result($r)) {
-                       $id = $r[0]["id"];
-                       $nick = $r[0]["nickname"];
-               }
-       }
-       return ["nick" => $nick, "id" => $id];
-}
-
-// return - test
-function get_item_contact($item, $contacts) {
-       if (! count($contacts) || (! is_array($item))) {
-               return false;
-       }
-       foreach ($contacts as $contact) {
-               if ($contact['id'] == $item['contact-id']) {
-                       return $contact;
-               }
-       }
-       return false;
+       return "\n".$text.$hashtags;
 }
 
-/**
- * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
- * @param int $uid
- * @param int $item_id
- * @return bool true if item was deleted, else false
- */
-function tag_deliver($uid, $item_id)
-{
-       $mention = false;
-
-       $u = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
-               intval($uid)
-       );
-       if (! DBM::is_result($u)) {
-               return;
-       }
+function query_page_info($url, $photo = "", $keywords = false, $keyword_blacklist = "") {
 
-       $community_page = (($u[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
-       $prvgroup = (($u[0]['page-flags'] == PAGE_PRVGROUP) ? true : false);
+       $data = ParseUrl::getSiteinfoCached($url, true);
 
-       $i = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
-               intval($item_id),
-               intval($uid)
-       );
-       if (! DBM::is_result($i)) {
-               return;
+       if ($photo != "") {
+               $data["images"][0]["src"] = $photo;
        }
 
-       $item = $i[0];
-
-       $link = normalise_link(System::baseUrl() . '/profile/' . $u[0]['nickname']);
+       logger('fetch page info for ' . $url . ' ' . print_r($data, true), LOGGER_DEBUG);
 
-       /*
-        * Diaspora uses their own hardwired link URL in @-tags
-        * instead of the one we supply with webfinger
-        */
-       $dlink = normalise_link(System::baseUrl() . '/u/' . $u[0]['nickname']);
-
-       $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
-       if ($cnt) {
-               foreach ($matches as $mtch) {
-                       if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) {
-                               $mention = true;
-                               logger('tag_deliver: mention found: ' . $mtch[2]);
-                       }
-               }
+       if (!$keywords && isset($data["keywords"])) {
+               unset($data["keywords"]);
        }
 
-       if (! $mention) {
-               if (($community_page || $prvgroup) &&
-                         (!$item['wall']) && (!$item['origin']) && ($item['id'] == $item['parent'])) {
-                       // mmh.. no mention.. community page or private group... no wall.. no origin.. top-post (not a comment)
-                       // delete it!
-                       logger("tag_deliver: no-mention top-level post to communuty or private group. delete.");
-                       dba::delete('item', ['id' => $item_id]);
-                       return true;
+       if (($keyword_blacklist != "") && isset($data["keywords"])) {
+               $list = explode(", ", $keyword_blacklist);
+               foreach ($list AS $keyword) {
+                       $keyword = trim($keyword);
+                       $index = array_search($keyword, $data["keywords"]);
+                       if ($index !== false) {
+                               unset($data["keywords"][$index]);
+                       }
                }
-               return;
        }
 
-       $arr = ['item' => $item, 'user' => $u[0], 'contact' => $r[0]];
+       return $data;
+}
 
-       call_hooks('tagged', $arr);
+function add_page_keywords($url, $photo = "", $keywords = false, $keyword_blacklist = "") {
+       $data = query_page_info($url, $photo, $keywords, $keyword_blacklist);
 
-       if ((! $community_page) && (! $prvgroup)) {
-               return;
-       }
+       $tags = "";
+       if (isset($data["keywords"]) && count($data["keywords"])) {
+               foreach ($data["keywords"] AS $keyword) {
+                       $hashtag = str_replace([" ", "+", "/", ".", "#", "'"],
+                               ["", "", "", "", "", ""], $keyword);
 
-       /*
-        * tgroup delivery - setup a second delivery chain
-        * prevent delivery looping - only proceed
-        * if the message originated elsewhere and is a top-level post
-        */
-       if (($item['wall']) || ($item['origin']) || ($item['id'] != $item['parent'])) {
-               return;
-       }
+                       if ($tags != "") {
+                               $tags .= ", ";
+                       }
 
-       // now change this copy of the post to a forum head message and deliver to all the tgroup members
-       $c = q("SELECT `name`, `url`, `thumb` FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
-               intval($u[0]['uid'])
-       );
-       if (! DBM::is_result($c)) {
-               return;
+                       $tags .= "#[url=" . System::baseUrl() . "/search?tag=" . rawurlencode($hashtag) . "]" . $hashtag . "[/url]";
+               }
        }
 
-       // also reset all the privacy bits to the forum default permissions
-
-       $private = ($u[0]['allow_cid'] || $u[0]['allow_gid'] || $u[0]['deny_cid'] || $u[0]['deny_gid']) ? 1 : 0;
-
-       $forum_mode = (($prvgroup) ? 2 : 1);
+       return $tags;
+}
 
-       q("UPDATE `item` SET `wall` = 1, `origin` = 1, `forum_mode` = %d, `owner-name` = '%s', `owner-link` = '%s', `owner-avatar` = '%s',
-               `private` = %d, `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'  WHERE `id` = %d",
-               intval($forum_mode),
-               dbesc($c[0]['name']),
-               dbesc($c[0]['url']),
-               dbesc($c[0]['thumb']),
-               intval($private),
-               dbesc($u[0]['allow_cid']),
-               dbesc($u[0]['allow_gid']),
-               dbesc($u[0]['deny_cid']),
-               dbesc($u[0]['deny_gid']),
-               intval($item_id)
-       );
-       update_thread($item_id);
+function add_page_info($url, $no_photos = false, $photo = "", $keywords = false, $keyword_blacklist = "") {
+       $data = query_page_info($url, $photo, $keywords, $keyword_blacklist);
 
-       Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', 'tgroup', $item_id);
+       $text = add_page_info_data($data, $no_photos);
 
+       return $text;
 }
 
+function add_page_info_to_body($body, $texturl = false, $no_photos = false) {
 
+       logger('add_page_info_to_body: fetch page info for body ' . $body, LOGGER_DEBUG);
 
-function tgroup_check($uid, $item) {
-
-       $mention = false;
+       $URLSearchString = "^\[\]";
 
-       // check that the message originated elsewhere and is a top-level post
+       // Fix for Mastodon where the mentions are in a different format
+       $body = preg_replace("/\[url\=([$URLSearchString]*)\]([#!@])(.*?)\[\/url\]/ism",
+               '$2[url=$1]$3[/url]', $body);
 
-       if (($item['wall']) || ($item['origin']) || ($item['uri'] != $item['parent-uri'])) {
-               return false;
-       }
+       // Adding these spaces is a quick hack due to my problems with regular expressions :)
+       preg_match("/[^!#@]\[url\]([$URLSearchString]*)\[\/url\]/ism", " " . $body, $matches);
 
-       /// @TODO Encapsulate this or find it encapsulated and replace all occurrances
-       $u = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
-               intval($uid)
-       );
-       if (! DBM::is_result($u)) {
-               return false;
+       if (!$matches) {
+               preg_match("/[^!#@]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", " " . $body, $matches);
        }
 
-       $community_page = (($u[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
-       $prvgroup = (($u[0]['page-flags'] == PAGE_PRVGROUP) ? true : false);
-
-       $link = normalise_link(System::baseUrl() . '/profile/' . $u[0]['nickname']);
+       // Convert urls without bbcode elements
+       if (!$matches && $texturl) {
+               preg_match("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", " ".$body, $matches);
 
-       /*
-        * Diaspora uses their own hardwired link URL in @-tags
-        * instead of the one we supply with webfinger
-        */
-       $dlink = normalise_link(System::baseUrl() . '/u/' . $u[0]['nickname']);
-
-       $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
-       if ($cnt) {
-               foreach ($matches as $mtch) {
-                       if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) {
-                               $mention = true;
-                               logger('tgroup_check: mention found: ' . $mtch[2]);
-                       }
+               // Yeah, a hack. I really hate regular expressions :)
+               if ($matches) {
+                       $matches[1] = $matches[2];
                }
        }
 
-       if (! $mention) {
-               return false;
+       if ($matches) {
+               $footer = add_page_info($matches[1], $no_photos);
        }
 
-       /// @TODO Combine both return statements into one
-       return (($community_page) || ($prvgroup));
-}
+       // Remove the link from the body if the link is attached at the end of the post
+       if (isset($footer) && (trim($footer) != "") && (strpos($footer, $matches[1]))) {
+               $removedlink = trim(str_replace($matches[1], "", $body));
+               if (($removedlink == "") || strstr($body, $removedlink)) {
+                       $body = $removedlink;
+               }
 
-/**
- * This function returns true if $update has an edited timestamp newer
- * than $existing, i.e. $update contains new data which should override
- * what's already there.  If there is no timestamp yet, the update is
- * assumed to be newer.  If the update has no timestamp, the existing
- * item is assumed to be up-to-date.  If the timestamps are equal it
- * assumes the update has been seen before and should be ignored.
- *
- * @todo fix type-hints (both array)
- */
-function edited_timestamp_is_newer($existing, $update) {
-       if (!x($existing, 'edited') || !$existing['edited']) {
-               return true;
+               $url = str_replace(['/', '.'], ['\/', '\.'], $matches[1]);
+               $removedlink = preg_replace("/\[url\=" . $url . "\](.*?)\[\/url\]/ism", '', $body);
+               if (($removedlink == "") || strstr($body, $removedlink)) {
+                       $body = $removedlink;
+               }
        }
-       if (!x($update, 'edited') || !$update['edited']) {
-               return false;
+
+       // Add the page information to the bottom
+       if (isset($footer) && (trim($footer) != "")) {
+               $body .= $footer;
        }
 
-       $existing_edited = datetime_convert('UTC', 'UTC', $existing['edited']);
-       $update_edited = datetime_convert('UTC', 'UTC', $update['edited']);
-       return (strcmp($existing_edited, $update_edited) < 0);
+       return $body;
 }
 
 /**
@@ -1524,9 +229,9 @@ function edited_timestamp_is_newer($existing, $update) {
  * to get all the feed items into a mostly linear ordering, and might still require
  * recursion.
  *
- * @todo find proper type-hints
+ * @TODO find proper type-hints
  */
-function consume_feed($xml, $importer, &$contact, &$hub, $datedir = 0, $pass = 0) {
+function consume_feed($xml, $importer, $contact, &$hub, $datedir = 0, $pass = 0) {
        if ($contact['network'] === NETWORK_OSTATUS) {
                if ($pass < 2) {
                        // Test - remove before flight
@@ -1569,197 +274,10 @@ function consume_feed($xml, $importer, &$contact, &$hub, $datedir = 0, $pass = 0
        }
 }
 
-/// @TODO type-hint is array
-function item_is_remote_self($contact, &$datarray) {
-       $a = get_app();
-
-       if (!$contact['remote_self']) {
-               return false;
-       }
-
-       // Prevent the forwarding of posts that are forwarded
-       if ($datarray["extid"] == NETWORK_DFRN) {
-               return false;
-       }
-
-       // Prevent to forward already forwarded posts
-       if ($datarray["app"] == $a->get_hostname()) {
-               return false;
-       }
-
-       // Only forward posts
-       if ($datarray["verb"] != ACTIVITY_POST) {
-               return false;
-       }
-
-       if (($contact['network'] != NETWORK_FEED) && $datarray['private']) {
-               return false;
-       }
-
-       $datarray2 = $datarray;
-       logger('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), LOGGER_DEBUG);
-       if ($contact['remote_self'] == 2) {
-               $r = q("SELECT `id`,`url`,`name`,`thumb` FROM `contact` WHERE `uid` = %d AND `self`",
-                       intval($contact['uid']));
-               if (DBM::is_result($r)) {
-                       $datarray['contact-id'] = $r[0]["id"];
-
-                       $datarray['owner-name'] = $r[0]["name"];
-                       $datarray['owner-link'] = $r[0]["url"];
-                       $datarray['owner-avatar'] = $r[0]["thumb"];
-
-                       $datarray['author-name']   = $datarray['owner-name'];
-                       $datarray['author-link']   = $datarray['owner-link'];
-                       $datarray['author-avatar'] = $datarray['owner-avatar'];
-
-                       unset($datarray['created']);
-                       unset($datarray['edited']);
-               }
-
-               if ($contact['network'] != NETWORK_FEED) {
-                       $datarray["guid"] = get_guid(32);
-                       unset($datarray["plink"]);
-                       $datarray["uri"] = item_new_uri($a->get_hostname(), $contact['uid'], $datarray["guid"]);
-                       $datarray["parent-uri"] = $datarray["uri"];
-                       $datarray["extid"] = $contact['network'];
-                       $urlpart = parse_url($datarray2['author-link']);
-                       $datarray["app"] = $urlpart["host"];
-               } else {
-                       $datarray['private'] = 0;
-               }
-       }
-
-       if ($contact['network'] != NETWORK_FEED) {
-               // Store the original post
-               $r = item_store($datarray2, false, false);
-               logger('remote-self post original item - Contact '.$contact['url'].' return '.$r.' Item '.print_r($datarray2, true), LOGGER_DEBUG);
-       } else {
-               $datarray["app"] = "Feed";
-       }
-
-       // Trigger automatic reactions for addons
-       $datarray['api_source'] = true;
-
-       // We have to tell the hooks who we are - this really should be improved
-       $_SESSION["authenticated"] = true;
-       $_SESSION["uid"] = $contact['uid'];
-
-       return true;
-}
-
-/// @TODO find proper type-hints
-function new_follower($importer, $contact, $datarray, $item, $sharing = false) {
-       $url = notags(trim($datarray['author-link']));
-       $name = notags(trim($datarray['author-name']));
-       $photo = notags(trim($datarray['author-avatar']));
-
-       if (is_object($item)) {
-               $rawtag = $item->get_item_tags(NAMESPACE_ACTIVITY,'actor');
-               if ($rawtag && $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data']) {
-                       $nick = $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'];
-               }
-       } else {
-               $nick = $item;
-       }
-
-       if (is_array($contact)) {
-               if (($contact['network'] == NETWORK_OSTATUS && $contact['rel'] == CONTACT_IS_SHARING)
-                       || ($sharing && $contact['rel'] == CONTACT_IS_FOLLOWER)) {
-                       dba::update('contact', ['rel' => CONTACT_IS_FRIEND, 'writable' => true],
-                                       ['id' => $contact['id'], 'uid' => $importer['uid']]);
-               }
-               // send email notification to owner?
-       } else {
-               // create contact record
-               q("INSERT INTO `contact` (`uid`, `created`, `url`, `nurl`, `name`, `nick`, `photo`, `network`, `rel`,
-                       `blocked`, `readonly`, `pending`, `writable`)
-                       VALUES (%d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, 1)",
-                       intval($importer['uid']),
-                       dbesc(datetime_convert()),
-                       dbesc($url),
-                       dbesc(normalise_link($url)),
-                       dbesc($name),
-                       dbesc($nick),
-                       dbesc($photo),
-                       dbesc(NETWORK_OSTATUS),
-                       intval(CONTACT_IS_FOLLOWER)
-               );
-
-               $r = q("SELECT `id`, `network` FROM `contact` WHERE `uid` = %d AND `url` = '%s' AND `pending` = 1 LIMIT 1",
-                               intval($importer['uid']),
-                               dbesc($url)
-               );
-               if (DBM::is_result($r)) {
-                       $contact_record = $r[0];
-                       Contact::updateAvatar($photo, $importer["uid"], $contact_record["id"], true);
-               }
-
-               /// @TODO Encapsulate this into a function/method
-               $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
-                       intval($importer['uid'])
-               );
-               if (DBM::is_result($r) && !in_array($r[0]['page-flags'], [PAGE_SOAPBOX, PAGE_FREELOVE, PAGE_COMMUNITY])) {
-                       // create notification
-                       $hash = random_string();
-
-                       if (is_array($contact_record)) {
-                               dba::insert('intro', ['uid' => $importer['uid'], 'contact-id' => $contact_record['id'],
-                                                       'blocked' => false, 'knowyou' => false,
-                                                       'hash' => $hash, 'datetime' => datetime_convert()]);
-                       }
-
-                       Group::addMember(User::getDefaultGroup($importer['uid'], $contact_record["network"]), $contact_record['id']);
-
-                       if (($r[0]['notify-flags'] & NOTIFY_INTRO) &&
-                               in_array($r[0]['page-flags'], [PAGE_NORMAL])) {
-
-                               notification([
-                                       'type'         => NOTIFY_INTRO,
-                                       'notify_flags' => $r[0]['notify-flags'],
-                                       'language'     => $r[0]['language'],
-                                       'to_name'      => $r[0]['username'],
-                                       'to_email'     => $r[0]['email'],
-                                       'uid'          => $r[0]['uid'],
-                                       'link'             => System::baseUrl() . '/notifications/intro',
-                                       'source_name'  => ((strlen(stripslashes($contact_record['name']))) ? stripslashes($contact_record['name']) : t('[Name Withheld]')),
-                                       'source_link'  => $contact_record['url'],
-                                       'source_photo' => $contact_record['photo'],
-                                       'verb'         => ($sharing ? ACTIVITY_FRIEND : ACTIVITY_FOLLOW),
-                                       'otype'        => 'intro'
-                               ]);
-
-                       }
-               } elseif (DBM::is_result($r) && in_array($r[0]['page-flags'], [PAGE_SOAPBOX, PAGE_FREELOVE, PAGE_COMMUNITY])) {
-                       q("UPDATE `contact` SET `pending` = 0 WHERE `uid` = %d AND `url` = '%s' AND `pending` LIMIT 1",
-                                       intval($importer['uid']),
-                                       dbesc($url)
-                       );
-               }
-
-       }
-}
-
-function lose_follower($importer, $contact, array $datarray = [], $item = "") {
-
-       if (($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_SHARING)) {
-               dba::update('contact', ['rel' => CONTACT_IS_SHARING], ['id' => $contact['id']]);
-       } else {
-               Contact::remove($contact['id']);
-       }
-}
-
-function lose_sharer($importer, $contact, array $datarray = [], $item = "") {
-
-       if (($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_FOLLOWER)) {
-               dba::update('contact', ['rel' => CONTACT_IS_FOLLOWER], ['id' => $contact['id']]);
-       } else {
-               Contact::remove($contact['id']);
-       }
-}
-
 function subscribe_to_hub($url, $importer, $contact, $hubmode = 'subscribe') {
 
        $a = get_app();
+       $r = null;
 
        if (is_array($importer)) {
                $r = q("SELECT `nickname` FROM `user` WHERE `uid` = %d LIMIT 1",
@@ -1772,11 +290,11 @@ function subscribe_to_hub($url, $importer, $contact, $hubmode = 'subscribe') {
         * through the direct Diaspora protocol. If we try and use
         * the feed, we'll get duplicates. So don't.
         */
-       if ((! DBM::is_result($r)) || $contact['network'] === NETWORK_DIASPORA) {
+       if ((!DBM::is_result($r)) || $contact['network'] === NETWORK_DIASPORA) {
                return;
        }
 
-       $push_url = Config::get('system','url') . '/pubsub/' . $r[0]['nickname'] . '/' . $contact['id'];
+       $push_url = System::baseUrl() . '/pubsub/' . $r[0]['nickname'] . '/' . $contact['id'];
 
        // Use a single verify token, even if multiple hubs
        $verify_token = ((strlen($contact['hub-verify'])) ? $contact['hub-verify'] : random_string());
@@ -1786,10 +304,10 @@ function subscribe_to_hub($url, $importer, $contact, $hubmode = 'subscribe') {
        logger('subscribe_to_hub: ' . $hubmode . ' ' . $contact['name'] . ' to hub ' . $url . ' endpoint: '  . $push_url . ' with verifier ' . $verify_token);
 
        if (!strlen($contact['hub-verify']) || ($contact['hub-verify'] != $verify_token)) {
-               dba::update('contact', ['hub-verify' => $verify_token], ['id' => $contact['id']]);
+               DBA::update('contact', ['hub-verify' => $verify_token], ['id' => $contact['id']]);
        }
 
-       post_url($url, $params);
+       Network::post($url, $params);
 
        logger('subscribe_to_hub: returns: ' . $a->get_curl_code(), LOGGER_DEBUG);
 
@@ -1797,263 +315,6 @@ function subscribe_to_hub($url, $importer, $contact, $hubmode = 'subscribe') {
 
 }
 
-/**
- *
- * @param string $s
- * @param int    $uid
- * @param array  $item
- * @param int    $cid
- * @return string
- */
-function fix_private_photos($s, $uid, $item = null, $cid = 0)
-{
-       if (Config::get('system', 'disable_embedded')) {
-               return $s;
-       }
-
-       logger('fix_private_photos: check for photos', LOGGER_DEBUG);
-       $site = substr(System::baseUrl(), strpos(System::baseUrl(), '://'));
-
-       $orig_body = $s;
-       $new_body = '';
-
-       $img_start = strpos($orig_body, '[img');
-       $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
-       $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
-
-       while (($img_st_close !== false) && ($img_len !== false)) {
-               $img_st_close++; // make it point to AFTER the closing bracket
-               $image = substr($orig_body, $img_start + $img_st_close, $img_len);
-
-               logger('fix_private_photos: found photo ' . $image, LOGGER_DEBUG);
-
-               if (stristr($image, $site . '/photo/')) {
-                       // Only embed locally hosted photos
-                       $replace = false;
-                       $i = basename($image);
-                       $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
-                       $x = strpos($i, '-');
-
-                       if ($x) {
-                               $res = substr($i, $x + 1);
-                               $i = substr($i, 0, $x);
-                               $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d AND `uid` = %d",
-                                       dbesc($i),
-                                       intval($res),
-                                       intval($uid)
-                               );
-                               if (DBM::is_result($r)) {
-                                       /*
-                                        * Check to see if we should replace this photo link with an embedded image
-                                        * 1. No need to do so if the photo is public
-                                        * 2. If there's a contact-id provided, see if they're in the access list
-                                        *    for the photo. If so, embed it.
-                                        * 3. Otherwise, if we have an item, see if the item permissions match the photo
-                                        *    permissions, regardless of order but first check to see if they're an exact
-                                        *    match to save some processing overhead.
-                                        */
-                                       if (has_permissions($r[0])) {
-                                               if ($cid) {
-                                                       $recips = enumerate_permissions($r[0]);
-                                                       if (in_array($cid, $recips)) {
-                                                               $replace = true;
-                                                       }
-                                               } elseif ($item) {
-                                                       if (compare_permissions($item, $r[0])) {
-                                                               $replace = true;
-                                                       }
-                                               }
-                                       }
-                                       if ($replace) {
-                                               $data = $r[0]['data'];
-                                               $type = $r[0]['type'];
-
-                                               // 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('fix_private_photos: scaling photo', LOGGER_DEBUG);
-
-                                                       $width = intval($match[1]);
-                                                       $height = intval($match[2]);
-
-                                                       $Image = new Image($data, $type);
-                                                       if ($Image->isValid()) {
-                                                               $Image->scaleDown(max($width, $height));
-                                                               $data = $Image->asString();
-                                                               $type = $Image->getType();
-                                                       }
-                                               }
-
-                                               logger('fix_private_photos: replacing photo', LOGGER_DEBUG);
-                                               $image = 'data:' . $type . ';base64,' . base64_encode($data);
-                                               logger('fix_private_photos: replaced: ' . $image, LOGGER_DATA);
-                                       }
-                               }
-                       }
-               }
-
-               $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
-               $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
-               if ($orig_body === false) {
-                       $orig_body = '';
-               }
-
-               $img_start = strpos($orig_body, '[img');
-               $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
-               $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
-       }
-
-       $new_body = $new_body . $orig_body;
-
-       return $new_body;
-}
-
-/// @TODO type-hint is array
-function has_permissions($obj) {
-       return (
-               (
-                       x($obj, 'allow_cid')
-               ) || (
-                       x($obj, 'allow_gid')
-               ) || (
-                       x($obj, 'deny_cid')
-               ) || (
-                       x($obj, 'deny_gid')
-               )
-       );
-}
-
-/// @TODO type-hint is array
-function compare_permissions($obj1, $obj2) {
-       // first part is easy. Check that these are exactly the same.
-       if (($obj1['allow_cid'] == $obj2['allow_cid'])
-               && ($obj1['allow_gid'] == $obj2['allow_gid'])
-               && ($obj1['deny_cid'] == $obj2['deny_cid'])
-               && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
-               return true;
-       }
-
-       // This is harder. Parse all the permissions and compare the resulting set.
-       $recipients1 = enumerate_permissions($obj1);
-       $recipients2 = enumerate_permissions($obj2);
-       sort($recipients1);
-       sort($recipients2);
-
-       /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
-       return ($recipients1 == $recipients2);
-}
-
-// returns an array of contact-ids that are allowed to see this object
-/// @TODO type-hint is array
-function enumerate_permissions($obj) {
-       $allow_people = expand_acl($obj['allow_cid']);
-       $allow_groups = Group::expand(expand_acl($obj['allow_gid']));
-       $deny_people  = expand_acl($obj['deny_cid']);
-       $deny_groups  = Group::expand(expand_acl($obj['deny_gid']));
-       $recipients   = array_unique(array_merge($allow_people, $allow_groups));
-       $deny         = array_unique(array_merge($deny_people, $deny_groups));
-       $recipients   = array_diff($recipients, $deny);
-       return $recipients;
-}
-
-function item_getfeedtags($item) {
-       $ret = [];
-       $matches = false;
-       $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
-       if ($cnt) {
-               for ($x = 0; $x < $cnt; $x ++) {
-                       if ($matches[1][$x]) {
-                               $ret[$matches[2][$x]] = ['#', $matches[1][$x], $matches[2][$x]];
-                       }
-               }
-       }
-       $matches = false;
-       $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
-       if ($cnt) {
-               for ($x = 0; $x < $cnt; $x ++) {
-                       if ($matches[1][$x]) {
-                               $ret[] = ['@', $matches[1][$x], $matches[2][$x]];
-                       }
-               }
-       }
-       return $ret;
-}
-
-function item_expire($uid, $days, $network = "", $force = false) {
-
-       if (!$uid || ($days < 1)) {
-               return;
-       }
-
-       /*
-        * $expire_network_only = save your own wall posts
-        * and just expire conversations started by others
-        */
-       $expire_network_only = PConfig::get($uid,'expire', 'network_only');
-       $sql_extra = (intval($expire_network_only) ? " AND wall = 0 " : "");
-
-       if ($network != "") {
-               $sql_extra .= sprintf(" AND network = '%s' ", dbesc($network));
-
-               /*
-                * There is an index "uid_network_received" but not "uid_network_created"
-                * This avoids the creation of another index just for one purpose.
-                * And it doesn't really matter wether to look at "received" or "created"
-                */
-               $range = "AND `received` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
-       } else {
-               $range = "AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
-       }
-
-       $r = q("SELECT `file`, `resource-id`, `starred`, `type`, `id` FROM `item`
-               WHERE `uid` = %d $range
-               AND `id` = `parent`
-               $sql_extra
-               AND `deleted` = 0",
-               intval($uid),
-               intval($days)
-       );
-
-       if (!DBM::is_result($r)) {
-               return;
-       }
-
-       $expire_items = PConfig::get($uid, 'expire', 'items', 1);
-
-       // Forcing expiring of items - but not notes and marked items
-       if ($force) {
-               $expire_items = true;
-       }
-
-       $expire_notes = PConfig::get($uid, 'expire', 'notes', 1);
-       $expire_starred = PConfig::get($uid, 'expire', 'starred', 1);
-       $expire_photos = PConfig::get($uid, 'expire', 'photos', 0);
-
-       logger('User '.$uid.': expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
-
-       foreach ($r as $item) {
-
-               // don't expire filed items
-
-               if (strpos($item['file'],'[') !== false) {
-                       continue;
-               }
-
-               // Only expire posts, not photos and photo comments
-
-               if ($expire_photos == 0 && strlen($item['resource-id'])) {
-                       continue;
-               } elseif ($expire_starred == 0 && intval($item['starred'])) {
-                       continue;
-               } elseif ($expire_notes == 0 && $item['type'] == 'note') {
-                       continue;
-               } elseif ($expire_items == 0 && $item['type'] != 'note') {
-                       continue;
-               }
-
-               Item::delete($item['id'], PRIORITY_LOW);
-       }
-}
-
 /// @TODO type-hint is array
 function drop_items($items) {
        $uid = 0;
@@ -2064,8 +325,8 @@ function drop_items($items) {
 
        if (count($items)) {
                foreach ($items as $item) {
-                       $owner = Item::delete($item);
-                       if ($owner && ! $uid)
+                       $owner = Item::deleteForUser(['id' => $item], local_user());
+                       if ($owner && !$uid)
                                $uid = $owner;
                }
        }
@@ -2077,17 +338,14 @@ function drop_item($id) {
 
        // locate item to be deleted
 
-       $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
-               intval($id)
-       );
+       $fields = ['id', 'uid', 'contact-id', 'deleted'];
+       $item = Item::selectFirstForUser(local_user(), $fields, ['id' => $id]);
 
-       if (!DBM::is_result($r)) {
-               notice(t('Item not found.') . EOL);
+       if (!DBM::is_result($item)) {
+               notice(L10n::t('Item not found.') . EOL);
                goaway(System::baseUrl() . '/' . $_SESSION['return_url']);
        }
 
-       $item = $r[0];
-
        if ($item['deleted']) {
                return 0;
        }
@@ -2106,7 +364,6 @@ function drop_item($id) {
        }
 
        if ((local_user() == $item['uid']) || $contact_id) {
-
                // Check if we should do HTML-based delete confirmation
                if ($_REQUEST['confirm']) {
                        // <form> can't take arguments in its "action" parameter
@@ -2122,12 +379,12 @@ function drop_item($id) {
 
                        return replace_macros(get_markup_template('confirm.tpl'), [
                                '$method' => 'get',
-                               '$message' => t('Do you really want to delete this item?'),
+                               '$message' => L10n::t('Do you really want to delete this item?'),
                                '$extra_inputs' => $inputs,
-                               '$confirm' => t('Yes'),
+                               '$confirm' => L10n::t('Yes'),
                                '$confirm_url' => $query['base'],
                                '$confirm_name' => 'confirmed',
-                               '$cancel' => t('Cancel'),
+                               '$cancel' => L10n::t('Cancel'),
                        ]);
                }
                // Now check how the user responded to the confirmation query
@@ -2136,39 +393,23 @@ function drop_item($id) {
                }
 
                // delete the item
-               Item::delete($item['id']);
+               Item::deleteForUser(['id' => $item['id']], local_user());
 
                goaway(System::baseUrl() . '/' . $_SESSION['return_url']);
                //NOTREACHED
        } else {
-               notice(t('Permission denied.') . EOL);
+               notice(L10n::t('Permission denied.') . EOL);
                goaway(System::baseUrl() . '/' . $_SESSION['return_url']);
                //NOTREACHED
        }
 }
 
-/// @todo: This query seems to be really slow
-function first_post_date($uid, $wall = false) {
-       $r = q("SELECT `id`, `created` FROM `item`
-               WHERE `uid` = %d AND `wall` = %d AND `deleted` = 0 AND `visible` = 1 AND `moderated` = 0
-               AND `id` = `parent`
-               ORDER BY `created` ASC LIMIT 1",
-               intval($uid),
-               intval($wall ? 1 : 0)
-       );
-       if (DBM::is_result($r)) {
-               // logger('first_post_date: ' . $r[0]['id'] . ' ' . $r[0]['created'], LOGGER_DATA);
-               return substr(datetime_convert('',date_default_timezone_get(), $r[0]['created']),0,10);
-       }
-       return false;
-}
-
-/* modified posted_dates() {below} to arrange the list in years */
+/* arrange the list in years */
 function list_post_dates($uid, $wall) {
-       $dnow = datetime_convert('',date_default_timezone_get(), 'now','Y-m-d');
+       $dnow = DateTimeFormat::localNow('Y-m-d');
 
-       $dthen = first_post_date($uid, $wall);
-       if (! $dthen) {
+       $dthen = Item::firstPostDate($uid, $wall);
+       if (!$dthen) {
                return [];
        }
 
@@ -2185,53 +426,25 @@ function list_post_dates($uid, $wall) {
        while (substr($dnow, 0, 7) >= substr($dthen, 0, 7)) {
                $dyear = intval(substr($dnow, 0, 4));
                $dstart = substr($dnow, 0, 8) . '01';
-               $dend = substr($dnow, 0, 8) . get_dim(intval($dnow), intval(substr($dnow, 5)));
-               $start_month = datetime_convert('', '', $dstart, 'Y-m-d');
-               $end_month = datetime_convert('', '', $dend, 'Y-m-d');
-               $str = day_translate(datetime_convert('', '', $dnow, 'F'));
-               if (!$ret[$dyear]) {
+               $dend = substr($dnow, 0, 8) . Temporal::getDaysInMonth(intval($dnow), intval(substr($dnow, 5)));
+               $start_month = DateTimeFormat::utc($dstart, 'Y-m-d');
+               $end_month = DateTimeFormat::utc($dend, 'Y-m-d');
+               $str = day_translate(DateTimeFormat::utc($dnow, 'F'));
+
+               if (empty($ret[$dyear])) {
                        $ret[$dyear] = [];
                }
-               $ret[$dyear][] = [$str, $end_month, $start_month];
-               $dnow = datetime_convert('', '', $dnow . ' -1 month', 'Y-m-d');
-       }
-       return $ret;
-}
-
-function posted_dates($uid, $wall) {
-       $dnow = datetime_convert('', date_default_timezone_get(), 'now', 'Y-m-d');
 
-       $dthen = first_post_date($uid, $wall);
-       if (! $dthen) {
-               return [];
-       }
-
-       // Set the start and end date to the beginning of the month
-       $dnow = substr($dnow, 0, 8) . '01';
-       $dthen = substr($dthen, 0, 8) . '01';
-
-       $ret = [];
-       /*
-        * Starting with the current month, get the first and last days of every
-        * month down to and including the month of the first post
-        */
-       while (substr($dnow, 0, 7) >= substr($dthen, 0, 7)) {
-               $dstart = substr($dnow, 0, 8) . '01';
-               $dend = substr($dnow, 0, 8) . get_dim(intval($dnow), intval(substr($dnow, 5)));
-               $start_month = datetime_convert('', '', $dstart, 'Y-m-d');
-               $end_month = datetime_convert('', '', $dend, 'Y-m-d');
-               $str = day_translate(datetime_convert('', '', $dnow, 'F Y'));
-               $ret[] = [$str, $end_month, $start_month];
-               $dnow = datetime_convert('', '', $dnow . ' -1 month', 'Y-m-d');
+               $ret[$dyear][] = [$str, $end_month, $start_month];
+               $dnow = DateTimeFormat::utc($dnow . ' -1 month', 'Y-m-d');
        }
        return $ret;
 }
 
-
 function posted_date_widget($url, $uid, $wall) {
        $o = '';
 
-       if (! Feature::isEnabled($uid, 'archives')) {
+       if (!Feature::isEnabled($uid, 'archives')) {
                return $o;
        }
 
@@ -2243,27 +456,27 @@ function posted_date_widget($url, $uid, $wall) {
        */
 
        $visible_years = PConfig::get($uid,'system','archive_visible_years');
-       if (! $visible_years) {
+       if (!$visible_years) {
                $visible_years = 5;
        }
 
        $ret = list_post_dates($uid, $wall);
 
-       if (! DBM::is_result($ret)) {
+       if (!DBM::is_result($ret)) {
                return $o;
        }
 
-       $cutoff_year = intval(datetime_convert('',date_default_timezone_get(), 'now', 'Y')) - $visible_years;
+       $cutoff_year = intval(DateTimeFormat::localNow('Y')) - $visible_years;
        $cutoff = ((array_key_exists($cutoff_year, $ret))? true : false);
 
        $o = replace_macros(get_markup_template('posted_date_widget.tpl'),[
-               '$title' => t('Archives'),
+               '$title' => L10n::t('Archives'),
                '$size' => $visible_years,
                '$cutoff_year' => $cutoff_year,
                '$cutoff' => $cutoff,
                '$url' => $url,
                '$dates' => $ret,
-               '$showmore' => t('show more')
+               '$showmore' => L10n::t('show more')
 
        ]);
        return $o;