]> git.mxchange.org Git - friendica.git/blobdiff - src/Protocol/OStatus.php
Merge pull request #6849 from annando/followup-6834
[friendica.git] / src / Protocol / OStatus.php
index 0e3d5e6c0f0412e326f26bc8465029595fa09179..dec5c4c80b021a572da0d951304a7234dcbab6bc 100644 (file)
@@ -11,6 +11,7 @@ use Friendica\Content\Text\HTML;
 use Friendica\Core\Cache;
 use Friendica\Core\Config;
 use Friendica\Core\L10n;
+use Friendica\Core\Logger;
 use Friendica\Core\Lock;
 use Friendica\Core\Protocol;
 use Friendica\Core\System;
@@ -25,12 +26,10 @@ use Friendica\Object\Image;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Util\Network;
 use Friendica\Util\Proxy as ProxyUtils;
+use Friendica\Util\Strings;
 use Friendica\Util\XML;
 
-require_once 'include/dba.php';
-require_once 'include/items.php';
 require_once 'mod/share.php';
-require_once 'include/enotify.php';
 require_once 'include/api.php';
 
 /**
@@ -44,13 +43,15 @@ class OStatus
        /**
         * @brief Fetches author data
         *
-        * @param object $xpath     The xpath object
-        * @param object $context   The xml context of the author details
-        * @param array  $importer  user record of the importing user
-        * @param array  $contact   Called by reference, will contain the fetched contact
-        * @param bool   $onlyfetch Only fetch the header without updating the contact entries
+        * @param DOMXPath $xpath     The xpath object
+        * @param object   $context   The xml context of the author details
+        * @param array    $importer  user record of the importing user
+        * @param array    $contact   Called by reference, will contain the fetched contact
+        * @param bool     $onlyfetch Only fetch the header without updating the contact entries
         *
         * @return array Array of author related entries for the item
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
        private static function fetchAuthor(DOMXPath $xpath, $context, array $importer, array &$contact = null, $onlyfetch)
        {
@@ -71,9 +72,9 @@ class OStatus
                }
                $author["author-id"] = Contact::getIdForURL($author["author-link"]);
 
-               $author["contact-id"] = $contact["id"];
+               $author['contact-id'] = defaults($contact, 'id', $author['author-id']);
 
-               $contact = null;
+               $contact = [];
 
 /*
                This here would be better, but we would get problems with contacts from the statusnet addon
@@ -97,7 +98,7 @@ class OStatus
                        }
 
                        $condition = ["`uid` = ? AND `nurl` IN (?, ?) AND `network` != ? AND `rel` IN (?, ?)",
-                                       $importer["uid"], normalise_link($author["author-link"]), normalise_link($aliaslink),
+                                       $importer["uid"], Strings::normaliseLink($author["author-link"]), Strings::normaliseLink($aliaslink),
                                        Protocol::STATUSNET, Contact::SHARING, Contact::FRIEND];
                        $contact = DBA::selectFirst('contact', [], $condition);
                }
@@ -163,7 +164,7 @@ class OStatus
                        //      $contact["poll"] = $value;
 
                        $contact['url'] = $author["author-link"];
-                       $contact['nurl'] = normalise_link($contact['url']);
+                       $contact['nurl'] = Strings::normaliseLink($contact['url']);
 
                        $value = XML::getFirstNodeValue($xpath, 'atom:author/atom:uri/text()', $context);
                        if ($value != "") {
@@ -195,7 +196,7 @@ class OStatus
                        DBA::update('contact', $contact, ['id' => $contact["id"]], $current);
 
                        if (!empty($author["author-avatar"]) && ($author["author-avatar"] != $current['avatar'])) {
-                               logger("Update profile picture for contact ".$contact["id"], LOGGER_DEBUG);
+                               Logger::log("Update profile picture for contact ".$contact["id"], Logger::DEBUG);
                                Contact::updateAvatar($author["author-avatar"], $importer["uid"], $contact["id"]);
                        }
 
@@ -208,7 +209,7 @@ class OStatus
 
                                // Update it with the current values
                                $fields = ['url' => $author["author-link"], 'name' => $contact["name"],
-                                               'nurl' => normalise_link($author["author-link"]),
+                                               'nurl' => Strings::normaliseLink($author["author-link"]),
                                                'nick' => $contact["nick"], 'alias' => $contact["alias"],
                                                'about' => $contact["about"], 'location' => $contact["location"],
                                                'success_update' => DateTimeFormat::utcNow(), 'last-update' => DateTimeFormat::utcNow()];
@@ -230,7 +231,7 @@ class OStatus
 
                        GContact::link($gcid, $contact["uid"], $contact["id"]);
                } elseif ($contact["network"] != Protocol::DFRN) {
-                       $contact = null;
+                       $contact = [];
                }
 
                return $author;
@@ -243,6 +244,8 @@ class OStatus
         * @param array  $importer user record of the importing user
         *
         * @return array Array of author related entries for the item
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
        public static function salmonAuthor($xml, array $importer)
        {
@@ -297,8 +300,10 @@ class OStatus
         * @param array  $contact  contact
         * @param string $hub      Called by reference, returns the fetched hub data
         * @return void
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
-       public static function import($xml, array $importer, array &$contact = null, &$hub)
+       public static function import($xml, array $importer, array &$contact, &$hub)
        {
                self::process($xml, $importer, $contact, $hub);
        }
@@ -314,6 +319,8 @@ class OStatus
         * @param boolean $initialize Is it the leading post so that data has to be initialized?
         *
         * @return boolean Could the XML be processed?
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
        private static function process($xml, array $importer, array &$contact = null, &$hub, $stored = false, $initialize = true)
        {
@@ -322,7 +329,7 @@ class OStatus
                        self::$conv_list = [];
                }
 
-               logger('Import OStatus message for user ' . $importer['uid'], LOGGER_DEBUG);
+               Logger::log('Import OStatus message for user ' . $importer['uid'], Logger::DEBUG);
 
                if ($xml == "") {
                        return false;
@@ -348,7 +355,7 @@ class OStatus
                                foreach ($hub_attributes as $hub_attribute) {
                                        if ($hub_attribute->name == "href") {
                                                $hub = $hub_attribute->textContent;
-                                               logger("Found hub ".$hub, LOGGER_DEBUG);
+                                               Logger::log("Found hub ".$hub, Logger::DEBUG);
                                        }
                                }
                        }
@@ -391,8 +398,6 @@ class OStatus
                $authordata = $xpath->query('//author')->item(0);
                $author = self::fetchAuthor($xpath, $authordata, $importer, $contact, $stored);
 
-               $entry = $xpath->query('/atom:entry');
-
                // Reverse the order of the entries
                $entrylist = [];
 
@@ -433,27 +438,27 @@ class OStatus
 
                        if (in_array($item["verb"], [NAMESPACE_OSTATUS."/unfavorite", ACTIVITY_UNFAVORITE])) {
                                // Ignore "Unfavorite" message
-                               logger("Ignore unfavorite message ".print_r($item, true), LOGGER_DEBUG);
+                               Logger::log("Ignore unfavorite message ".print_r($item, true), Logger::DEBUG);
                                continue;
                        }
 
                        // Deletions come with the same uri, so we check for duplicates after processing deletions
                        if (Item::exists(['uid' => $importer["uid"], 'uri' => $item["uri"]])) {
-                               logger('Post with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.', LOGGER_DEBUG);
+                               Logger::log('Post with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.', Logger::DEBUG);
                                continue;
                        } else {
-                               logger('Processing post with URI '.$item["uri"].' for user '.$importer["uid"].'.', LOGGER_DEBUG);
+                               Logger::log('Processing post with URI '.$item["uri"].' for user '.$importer["uid"].'.', Logger::DEBUG);
                        }
 
                        if ($item["verb"] == ACTIVITY_JOIN) {
                                // ignore "Join" messages
-                               logger("Ignore join message ".print_r($item, true), LOGGER_DEBUG);
+                               Logger::log("Ignore join message ".print_r($item, true), Logger::DEBUG);
                                continue;
                        }
 
                        if ($item["verb"] == "http://mastodon.social/schema/1.0/block") {
                                // ignore mastodon "block" messages
-                               logger("Ignore block message ".print_r($item, true), LOGGER_DEBUG);
+                               Logger::log("Ignore block message ".print_r($item, true), Logger::DEBUG);
                                continue;
                        }
 
@@ -470,7 +475,7 @@ class OStatus
 
                        if ($item["verb"] == ACTIVITY_FAVORITE) {
                                $orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
-                               logger("Favorite ".$orig_uri." ".print_r($item, true));
+                               Logger::log("Favorite ".$orig_uri." ".print_r($item, true));
 
                                $item["verb"] = ACTIVITY_LIKE;
                                $item["parent-uri"] = $orig_uri;
@@ -480,7 +485,7 @@ class OStatus
 
                        // http://activitystrea.ms/schema/1.0/rsvp-yes
                        if (!in_array($item["verb"], [ACTIVITY_POST, ACTIVITY_LIKE, ACTIVITY_SHARE])) {
-                               logger("Unhandled verb ".$item["verb"]." ".print_r($item, true), LOGGER_DEBUG);
+                               Logger::log("Unhandled verb ".$item["verb"]." ".print_r($item, true), Logger::DEBUG);
                        }
 
                        self::processPost($xpath, $entry, $item, $importer);
@@ -493,10 +498,10 @@ class OStatus
                                                // If not, then it depends on this setting
                                                $valid = !Config::get('system', 'ostatus_full_threads');
                                                if ($valid) {
-                                                       logger("Item with uri ".self::$itemlist[0]['uri']." will be imported due to the system settings.", LOGGER_DEBUG);
+                                                       Logger::log("Item with uri ".self::$itemlist[0]['uri']." will be imported due to the system settings.", Logger::DEBUG);
                                                }
                                        } else {
-                                               logger("Item with uri ".self::$itemlist[0]['uri']." belongs to a contact (".self::$itemlist[0]['contact-id']."). It will be imported.", LOGGER_DEBUG);
+                                               Logger::log("Item with uri ".self::$itemlist[0]['uri']." belongs to a contact (".self::$itemlist[0]['contact-id']."). It will be imported.", Logger::DEBUG);
                                        }
                                        if ($valid) {
                                                // Never post a thread when the only interaction by our contact was a like
@@ -508,20 +513,19 @@ class OStatus
                                                        }
                                                }
                                                if ($valid) {
-                                                       logger("Item with uri ".self::$itemlist[0]['uri']." will be imported since the thread contains posts or shares.", LOGGER_DEBUG);
+                                                       Logger::log("Item with uri ".self::$itemlist[0]['uri']." will be imported since the thread contains posts or shares.", Logger::DEBUG);
                                                }
                                        }
                                } else {
                                        // But we will only import complete threads
                                        $valid = Item::exists(['uid' => $importer["uid"], 'uri' => self::$itemlist[0]['parent-uri']]);
                                        if ($valid) {
-                                               logger("Item with uri ".self::$itemlist[0]["uri"]." belongs to parent ".self::$itemlist[0]['parent-uri']." of user ".$importer["uid"].". It will be imported.", LOGGER_DEBUG);
+                                               Logger::log("Item with uri ".self::$itemlist[0]["uri"]." belongs to parent ".self::$itemlist[0]['parent-uri']." of user ".$importer["uid"].". It will be imported.", Logger::DEBUG);
                                        }
                                }
 
                                if ($valid) {
                                        $default_contact = 0;
-                                       $key = count(self::$itemlist);
                                        for ($key = count(self::$itemlist) - 1; $key >= 0; $key--) {
                                                if (empty(self::$itemlist[$key]['contact-id'])) {
                                                        self::$itemlist[$key]['contact-id'] = $default_contact;
@@ -532,55 +536,59 @@ class OStatus
                                        foreach (self::$itemlist as $item) {
                                                $found = Item::exists(['uid' => $importer["uid"], 'uri' => $item["uri"]]);
                                                if ($found) {
-                                                       logger("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already exists.", LOGGER_DEBUG);
+                                                       Logger::log("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already exists.", Logger::DEBUG);
                                                } elseif ($item['contact-id'] < 0) {
-                                                       logger("Item with uri ".$item["uri"]." is from a blocked contact.", LOGGER_DEBUG);
+                                                       Logger::log("Item with uri ".$item["uri"]." is from a blocked contact.", Logger::DEBUG);
                                                } else {
                                                        // We are having duplicated entries. Hopefully this solves it.
                                                        if (Lock::acquire('ostatus_process_item_insert')) {
                                                                $ret = Item::insert($item);
                                                                Lock::release('ostatus_process_item_insert');
-                                                               logger("Item with uri ".$item["uri"]." for user ".$importer["uid"].' stored. Return value: '.$ret);
+                                                               Logger::log("Item with uri ".$item["uri"]." for user ".$importer["uid"].' stored. Return value: '.$ret);
                                                        } else {
                                                                $ret = Item::insert($item);
-                                                               logger("We couldn't lock - but tried to store the item anyway. Return value is ".$ret);
+                                                               Logger::log("We couldn't lock - but tried to store the item anyway. Return value is ".$ret);
                                                        }
                                                }
                                        }
                                }
                                self::$itemlist = [];
                        }
-                       logger('Processing done for post with URI '.$item["uri"].' for user '.$importer["uid"].'.', LOGGER_DEBUG);
+                       Logger::log('Processing done for post with URI '.$item["uri"].' for user '.$importer["uid"].'.', Logger::DEBUG);
                }
                return true;
        }
 
        /**
         * Removes notice item from database
+        *
         * @param array $item item
         * @return void
+        * @throws \Exception
         */
        private static function deleteNotice(array $item)
        {
                $condition = ['uid' => $item['uid'], 'author-id' => $item['author-id'], 'uri' => $item['uri']];
                if (!Item::exists($condition)) {
-                       logger('Item from '.$item['author-link'].' with uri '.$item['uri'].' for user '.$item['uid']." wasn't found. We don't delete it.");
+                       Logger::log('Item from '.$item['author-link'].' with uri '.$item['uri'].' for user '.$item['uid']." wasn't found. We don't delete it.");
                        return;
                }
 
                Item::delete($condition);
 
-               logger('Deleted item with uri '.$item['uri'].' for user '.$item['uid']);
+               Logger::log('Deleted item with uri '.$item['uri'].' for user '.$item['uid']);
        }
 
        /**
         * @brief Processes the XML for a post
         *
-        * @param object $xpath    The xpath object
-        * @param object $entry    The xml entry that is processed
-        * @param array  $item     The item array
-        * @param array  $importer user record of the importing user
+        * @param DOMXPath $xpath    The xpath object
+        * @param object   $entry    The xml entry that is processed
+        * @param array    $item     The item array
+        * @param array    $importer user record of the importing user
         * @return void
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
        private static function processPost(DOMXPath $xpath, $entry, array &$item, array $importer)
        {
@@ -632,15 +640,15 @@ class OStatus
                if ($categories) {
                        foreach ($categories as $category) {
                                foreach ($category->attributes as $attributes) {
-                                       if ($attributes->name == "term") {
+                                       if ($attributes->name == 'term') {
                                                $term = $attributes->textContent;
-                                               if (!empty($item["tag"])) {
-                                                       $item["tag"] .= ',';
+                                               if (!empty($item['tag'])) {
+                                                       $item['tag'] .= ',';
                                                } else {
-                                                       $item["tag"] = '';
+                                                       $item['tag'] = '';
                                                }
 
-                                               $item["tag"] .= "#[url=".System::baseUrl()."/search?tag=".$term."]".$term."[/url]";
+                                               $item['tag'] .= '#[url=' . System::baseUrl() . '/search?tag=' . $term . ']' . $term . '[/url]';
                                        }
                                }
                        }
@@ -706,7 +714,7 @@ class OStatus
                                        self::fetchRelated($related, $item["parent-uri"], $importer);
                                }
                        } else {
-                               logger('Reply with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.', LOGGER_DEBUG);
+                               Logger::log('Reply with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.', Logger::DEBUG);
                        }
                } else {
                        $item["parent-uri"] = $item["uri"];
@@ -726,6 +734,7 @@ class OStatus
         * @param string $conversation     The link to the conversation
         * @param string $conversation_uri The conversation in "uri" format
         * @return void
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
        private static function fetchConversation($conversation, $conversation_uri)
        {
@@ -788,6 +797,7 @@ class OStatus
         * @param string $conversation     conversation
         * @param string $conversation_uri conversation uri
         * @return void
+        * @throws \Exception
         */
        private static function storeConversation($xml, $conversation = '', $conversation_uri = '')
        {
@@ -852,11 +862,11 @@ class OStatus
 
                        $condition = ['item-uri' => $conv_data['uri'],'protocol' => Conversation::PARCEL_FEED];
                        if (DBA::exists('conversation', $condition)) {
-                               logger('Delete deprecated entry for URI '.$conv_data['uri'], LOGGER_DEBUG);
+                               Logger::log('Delete deprecated entry for URI '.$conv_data['uri'], Logger::DEBUG);
                                DBA::delete('conversation', ['item-uri' => $conv_data['uri']]);
                        }
 
-                       logger('Store conversation data for uri '.$conv_data['uri'], LOGGER_DEBUG);
+                       Logger::log('Store conversation data for uri '.$conv_data['uri'], Logger::DEBUG);
                        Conversation::insert($conv_data);
                }
        }
@@ -871,12 +881,13 @@ class OStatus
         * @param string $self The link to the self item
         * @param array  $item The item array
         * @return void
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
        private static function fetchSelf($self, array &$item)
        {
                $condition = ['`item-uri` = ? AND `protocol` IN (?, ?)', $self, Conversation::PARCEL_DFRN, Conversation::PARCEL_SALMON];
                if (DBA::exists('conversation', $condition)) {
-                       logger('Conversation '.$item['uri'].' is already stored.', LOGGER_DEBUG);
+                       Logger::log('Conversation '.$item['uri'].' is already stored.', Logger::DEBUG);
                        return;
                }
 
@@ -896,7 +907,7 @@ class OStatus
                $item["protocol"] = Conversation::PARCEL_SALMON;
                $item["source"] = $xml;
 
-               logger('Conversation '.$item['uri'].' is now fetched.', LOGGER_DEBUG);
+               Logger::log('Conversation '.$item['uri'].' is now fetched.', Logger::DEBUG);
        }
 
        /**
@@ -906,6 +917,8 @@ class OStatus
         * @param string $related_uri The related item in "uri" format
         * @param array  $importer    user record of the importing user
         * @return void
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
        private static function fetchRelated($related, $related_uri, $importer)
        {
@@ -915,11 +928,11 @@ class OStatus
                        $stored = true;
                        $xml = $conversation['source'];
                        if (self::process($xml, $importer, $contact, $hub, $stored, false)) {
-                               logger('Got valid cached XML for URI '.$related_uri, LOGGER_DEBUG);
+                               Logger::log('Got valid cached XML for URI '.$related_uri, Logger::DEBUG);
                                return;
                        }
                        if ($conversation['protocol'] == Conversation::PARCEL_SALMON) {
-                               logger('Delete invalid cached XML for URI '.$related_uri, LOGGER_DEBUG);
+                               Logger::log('Delete invalid cached XML for URI '.$related_uri, Logger::DEBUG);
                                DBA::delete('conversation', ['item-uri' => $related_uri]);
                        }
                }
@@ -934,7 +947,7 @@ class OStatus
                $xml = '';
 
                if (stristr($curlResult->getHeader(), 'Content-Type: application/atom+xml')) {
-                       logger('Directly fetched XML for URI ' . $related_uri, LOGGER_DEBUG);
+                       Logger::log('Directly fetched XML for URI ' . $related_uri, Logger::DEBUG);
                        $xml = $curlResult->getBody();
                }
 
@@ -959,7 +972,7 @@ class OStatus
                                        $curlResult = Network::curl($atom_file);
 
                                        if ($curlResult->isSuccess()) {
-                                               logger('Fetched XML for URI ' . $related_uri, LOGGER_DEBUG);
+                                               Logger::log('Fetched XML for URI ' . $related_uri, Logger::DEBUG);
                                                $xml = $curlResult->getBody();
                                        }
                                }
@@ -971,7 +984,7 @@ class OStatus
                        $curlResult = Network::curl(str_replace('/notice/', '/api/statuses/show/', $related).'.atom');
 
                        if ($curlResult->isSuccess()) {
-                               logger('GNU Social workaround to fetch XML for URI ' . $related_uri, LOGGER_DEBUG);
+                               Logger::log('GNU Social workaround to fetch XML for URI ' . $related_uri, Logger::DEBUG);
                                $xml = $curlResult->getBody();
                        }
                }
@@ -982,7 +995,7 @@ class OStatus
                        $curlResult = Network::curl(str_replace('/notice/', '/api/statuses/show/', $related_guess).'.atom');
 
                        if ($curlResult->isSuccess()) {
-                               logger('GNU Social workaround 2 to fetch XML for URI ' . $related_uri, LOGGER_DEBUG);
+                               Logger::log('GNU Social workaround 2 to fetch XML for URI ' . $related_uri, Logger::DEBUG);
                                $xml = $curlResult->getBody();
                        }
                }
@@ -993,7 +1006,7 @@ class OStatus
                        $conversation = DBA::selectFirst('conversation', ['source'], $condition);
                        if (DBA::isResult($conversation)) {
                                $stored = true;
-                               logger('Got cached XML from conversation for URI '.$related_uri, LOGGER_DEBUG);
+                               Logger::log('Got cached XML from conversation for URI '.$related_uri, Logger::DEBUG);
                                $xml = $conversation['source'];
                        }
                }
@@ -1001,7 +1014,7 @@ class OStatus
                if ($xml != '') {
                        self::process($xml, $importer, $contact, $hub, $stored, false);
                } else {
-                       logger("XML couldn't be fetched for URI: ".$related_uri." - href: ".$related, LOGGER_DEBUG);
+                       Logger::log("XML couldn't be fetched for URI: ".$related_uri." - href: ".$related, Logger::DEBUG);
                }
                return;
        }
@@ -1009,12 +1022,14 @@ class OStatus
        /**
         * @brief Processes the XML for a repeated post
         *
-        * @param object $xpath    The xpath object
-        * @param object $entry    The xml entry that is processed
-        * @param array  $item     The item array
-        * @param array  $importer user record of the importing user
+        * @param DOMXPath $xpath    The xpath object
+        * @param object   $entry    The xml entry that is processed
+        * @param array    $item     The item array
+        * @param array    $importer user record of the importing user
         *
         * @return array with data from links
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
        private static function processRepeatedItem(DOMXPath $xpath, $entry, array &$item, array $importer)
        {
@@ -1173,7 +1188,6 @@ class OStatus
                } else {
                        return "http://".$server[0]."/notice/".$conversation[1];
                }
-               return $href;
        }
 
        /**
@@ -1224,12 +1238,13 @@ class OStatus
         * @param string $body The body
         *
         * @return string The cleaned body
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
        private static function formatPicturePost($body)
        {
                $siteinfo = BBCode::getAttachedData($body);
 
-               if (($siteinfo["type"] == "photo")) {
+               if (($siteinfo["type"] == "photo") && (!empty($siteinfo["preview"]) || !empty($siteinfo["image"]))) {
                        if (isset($siteinfo["preview"])) {
                                $preview = $siteinfo["preview"];
                        } else {
@@ -1258,16 +1273,16 @@ class OStatus
        /**
         * @brief Adds the header elements to the XML document
         *
-        * @param object $doc    XML document
-        * @param array  $owner  Contact data of the poster
-        * @param string $filter The related feed filter (activity, posts or comments)
+        * @param DOMDocument $doc       XML document
+        * @param array       $owner     Contact data of the poster
+        * @param string      $filter    The related feed filter (activity, posts or comments)
+        * @param bool        $feed_mode Behave like a regular feed for users if true
         *
         * @return object header root element
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
-       private static function addHeader(DOMDocument $doc, array $owner, $filter)
+       private static function addHeader(DOMDocument $doc, array $owner, $filter, $feed_mode = false)
        {
-               $a = get_app();
-
                $root = $doc->createElementNS(NAMESPACE_ATOM1, 'feed');
                $doc->appendChild($root);
 
@@ -1281,10 +1296,23 @@ class OStatus
                $root->setAttribute("xmlns:mastodon", NAMESPACE_MASTODON);
 
                $title = '';
+               $selfUri = '/feed/' . $owner["nick"] . '/';
                switch ($filter) {
-                       case 'activity': $title = L10n::t('%s\'s timeline', $owner['name']); break;
-                       case 'posts'   : $title = L10n::t('%s\'s posts'   , $owner['name']); break;
-                       case 'comments': $title = L10n::t('%s\'s comments', $owner['name']); break;
+                       case 'activity':
+                               $title = L10n::t('%s\'s timeline', $owner['name']);
+                               $selfUri .= $filter;
+                               break;
+                       case 'posts':
+                               $title = L10n::t('%s\'s posts', $owner['name']);
+                               break;
+                       case 'comments':
+                               $title = L10n::t('%s\'s comments', $owner['name']);
+                               $selfUri .= $filter;
+                               break;
+               }
+
+               if (!$feed_mode) {
+                       $selfUri = "/dfrn_poll/" . $owner["nick"];
                }
 
                $attributes = ["uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION . "-" . DB_UPDATE_VERSION];
@@ -1318,11 +1346,10 @@ class OStatus
                $attributes = ["href" => System::baseUrl() . "/salmon/" . $owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-mention"];
                XML::addElement($doc, $root, "link", "", $attributes);
 
-               $attributes = ["href" => System::baseUrl() . "/api/statuses/user_timeline/" . $owner["nick"] . ".atom",
-                       "rel" => "self", "type" => "application/atom+xml"];
+               $attributes = ["href" => System::baseUrl() . $selfUri, "rel" => "self", "type" => "application/atom+xml"];
                XML::addElement($doc, $root, "link", "", $attributes);
 
-               if ($owner['account-type'] == Contact::ACCOUNT_TYPE_COMMUNITY) {
+               if ($owner['account-type'] == Contact::TYPE_COMMUNITY) {
                        $condition = ['uid' => $owner['uid'], 'self' => false, 'pending' => false,
                                        'archive' => false, 'hidden' => false, 'blocked' => false];
                        $members = DBA::count('contact', $condition);
@@ -1335,10 +1362,11 @@ class OStatus
        /**
         * @brief Add the link to the push hubs to the XML document
         *
-        * @param object $doc  XML document
-        * @param object $root XML root element where the hub links are added
-        * @param object $nick nick
+        * @param DOMDocument $doc  XML document
+        * @param object      $root XML root element where the hub links are added
+        * @param object      $nick nick
         * @return void
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
        public static function hublinks(DOMDocument $doc, $root, $nick)
        {
@@ -1349,14 +1377,14 @@ class OStatus
        /**
         * @brief Adds attachment data to the XML document
         *
-        * @param object $doc  XML document
-        * @param object $root XML root element where the hub links are added
-        * @param array  $item Data of the item that is to be posted
+        * @param DOMDocument $doc  XML document
+        * @param object      $root XML root element where the hub links are added
+        * @param array       $item Data of the item that is to be posted
         * @return void
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
        private static function getAttachment(DOMDocument $doc, $root, $item)
        {
-               $o = "";
                $siteinfo = BBCode::getAttachedData($item["body"]);
 
                switch ($siteinfo["type"]) {
@@ -1421,18 +1449,19 @@ class OStatus
        /**
         * @brief Adds the author element to the XML document
         *
-        * @param object $doc   XML document
-        * @param array  $owner Contact data of the poster
-        * @param bool   $show_profile Whether to show profile
+        * @param DOMDocument $doc          XML document
+        * @param array       $owner        Contact data of the poster
+        * @param bool        $show_profile Whether to show profile
         *
-        * @return object author element
+        * @return \DOMElement author element
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
        private static function addAuthor(DOMDocument $doc, array $owner, $show_profile = true)
        {
                $profile = DBA::selectFirst('profile', ['homepage', 'publish'], ['uid' => $owner['uid'], 'is-default' => true]);
                $author = $doc->createElement("author");
                XML::addElement($doc, $author, "id", $owner["url"]);
-               if ($owner['account-type'] == Contact::ACCOUNT_TYPE_COMMUNITY) {
+               if ($owner['account-type'] == User::ACCOUNT_TYPE_COMMUNITY) {
                        XML::addElement($doc, $author, "activity:object-type", ACTIVITY_OBJ_GROUP);
                } else {
                        XML::addElement($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
@@ -1450,8 +1479,8 @@ class OStatus
                $attributes = [
                                "rel" => "avatar",
                                "type" => "image/jpeg", // To-Do?
-                               "media:width" => 175,
-                               "media:height" => 175,
+                               "media:width" => 300,
+                               "media:height" => 300,
                                "href" => $owner["photo"]];
                XML::addElement($doc, $author, "link", "", $attributes);
 
@@ -1528,22 +1557,27 @@ class OStatus
         */
        private static function constructObjecttype(array $item)
        {
-               if (in_array($item['object-type'], [ACTIVITY_OBJ_NOTE, ACTIVITY_OBJ_COMMENT]))
+               if (!empty($item['object-type']) && in_array($item['object-type'], [ACTIVITY_OBJ_NOTE, ACTIVITY_OBJ_COMMENT])) {
                        return $item['object-type'];
+               }
+
                return ACTIVITY_OBJ_NOTE;
        }
 
        /**
         * @brief Adds an entry element to the XML document
         *
-        * @param object $doc      XML document
-        * @param array  $item     Data of the item that is to be posted
-        * @param array  $owner    Contact data of the poster
-        * @param bool   $toplevel optional default false
+        * @param DOMDocument $doc       XML document
+        * @param array       $item      Data of the item that is to be posted
+        * @param array       $owner     Contact data of the poster
+        * @param bool        $toplevel  optional default false
+        * @param bool        $feed_mode Behave like a regular feed for users if true
         *
-        * @return object Entry element
+        * @return \DOMElement Entry element
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
-       private static function entry(DOMDocument $doc, array $item, array $owner, $toplevel = false)
+       private static function entry(DOMDocument $doc, array $item, array $owner, $toplevel = false, $feed_mode = false)
        {
                $xml = null;
 
@@ -1561,17 +1595,18 @@ class OStatus
                } elseif (in_array($item["verb"], [ACTIVITY_FOLLOW, NAMESPACE_OSTATUS."/unfollow"])) {
                        return self::followEntry($doc, $item, $owner, $toplevel);
                } else {
-                       return self::noteEntry($doc, $item, $owner, $toplevel);
+                       return self::noteEntry($doc, $item, $owner, $toplevel, $feed_mode);
                }
        }
 
        /**
         * @brief Adds a source entry to the XML document
         *
-        * @param object $doc     XML document
-        * @param array  $contact Array of the contact that is added
+        * @param DOMDocument $doc     XML document
+        * @param array       $contact Array of the contact that is added
         *
-        * @return object Source element
+        * @return \DOMElement Source element
+        * @throws \Exception
         */
        private static function sourceEntry(DOMDocument $doc, array $contact)
        {
@@ -1593,12 +1628,14 @@ class OStatus
         * @param array  $owner Contact data of the poster
         *
         * @return array Contact array
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
        private static function contactEntry($url, array $owner)
        {
                $r = q(
                        "SELECT * FROM `contact` WHERE `nurl` = '%s' AND `uid` IN (0, %d) ORDER BY `uid` DESC LIMIT 1",
-                       DBA::escape(normalise_link($url)),
+                       DBA::escape(Strings::normaliseLink($url)),
                        intval($owner["uid"])
                );
                if (DBA::isResult($r)) {
@@ -1607,7 +1644,7 @@ class OStatus
                }
 
                if (!DBA::isResult($r)) {
-                       $gcontact = DBA::selectFirst('gcontact', [], ['nurl' => normalise_link($url)]);
+                       $gcontact = DBA::selectFirst('gcontact', [], ['nurl' => Strings::normaliseLink($url)]);
                        if (DBA::isResult($r)) {
                                $contact = $gcontact;
                                $contact["uid"] = -1;
@@ -1616,7 +1653,7 @@ class OStatus
                }
 
                if (!DBA::isResult($r)) {
-                       $contact = owner;
+                       $contact = $owner;
                }
 
                if (!isset($contact["poll"])) {
@@ -1640,21 +1677,23 @@ class OStatus
        /**
         * @brief Adds an entry element with reshared content
         *
-        * @param object $doc           XML document
-        * @param array  $item          Data of the item that is to be posted
-        * @param array  $owner         Contact data of the poster
-        * @param string $repeated_guid guid
-        * @param bool   $toplevel      Is it for en entry element (false) or a feed entry (true)?
+        * @param DOMDocument $doc           XML document
+        * @param array       $item          Data of the item that is to be posted
+        * @param array       $owner         Contact data of the poster
+        * @param string      $repeated_guid guid
+        * @param bool        $toplevel      Is it for en entry element (false) or a feed entry (true)?
         *
-        * @return object Entry element
+        * @return bool Entry element
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
        private static function reshareEntry(DOMDocument $doc, array $item, array $owner, $repeated_guid, $toplevel)
        {
-               if (($item["id"] != $item["parent"]) && (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
-                       logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
+               if (($item["id"] != $item["parent"]) && (Strings::normaliseLink($item["author-link"]) != Strings::normaliseLink($owner["url"]))) {
+                       Logger::log("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", Logger::DEBUG);
                }
 
-               $title = self::entryHeader($doc, $entry, $owner, $item, $toplevel);
+               $entry = self::entryHeader($doc, $owner, $item, $toplevel);
 
                $condition = ['uid' => $owner["uid"], 'guid' => $repeated_guid, 'private' => false,
                        'network' => [Protocol::DFRN, Protocol::DIASPORA, Protocol::OSTATUS]];
@@ -1704,37 +1743,36 @@ class OStatus
        /**
         * @brief Adds an entry element with a "like"
         *
-        * @param object $doc      XML document
-        * @param array  $item     Data of the item that is to be posted
-        * @param array  $owner    Contact data of the poster
-        * @param bool   $toplevel Is it for en entry element (false) or a feed entry (true)?
+        * @param DOMDocument $doc      XML document
+        * @param array       $item     Data of the item that is to be posted
+        * @param array       $owner    Contact data of the poster
+        * @param bool        $toplevel Is it for en entry element (false) or a feed entry (true)?
         *
-        * @return object Entry element with "like"
+        * @return \DOMElement Entry element with "like"
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
        private static function likeEntry(DOMDocument $doc, array $item, array $owner, $toplevel)
        {
-               if (($item["id"] != $item["parent"]) && (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
-                       logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
+               if (($item["id"] != $item["parent"]) && (Strings::normaliseLink($item["author-link"]) != Strings::normaliseLink($owner["url"]))) {
+                       Logger::log("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", Logger::DEBUG);
                }
 
-               $title = self::entryHeader($doc, $entry, $owner, $item, $toplevel);
+               $entry = self::entryHeader($doc, $owner, $item, $toplevel);
 
                $verb = NAMESPACE_ACTIVITY_SCHEMA."favorite";
                self::entryContent($doc, $entry, $item, $owner, "Favorite", $verb, false);
 
-               $as_object = $doc->createElement("activity:object");
-
                $parent = Item::selectFirst([], ['uri' => $item["thr-parent"], 'uid' => $item["uid"]]);
+               if (DBA::isResult($parent)) {
+                       $as_object = $doc->createElement("activity:object");
 
-               if (!$parent) {
-                       $parent = [];
-               }
-
-               XML::addElement($doc, $as_object, "activity:object-type", self::constructObjecttype($parent));
+                       XML::addElement($doc, $as_object, "activity:object-type", self::constructObjecttype($parent));
 
-               self::entryContent($doc, $as_object, $parent, $owner, "New entry");
+                       self::entryContent($doc, $as_object, $parent, $owner, "New entry");
 
-               $entry->appendChild($as_object);
+                       $entry->appendChild($as_object);
+               }
 
                self::entryFooter($doc, $entry, $item, $owner);
 
@@ -1744,9 +1782,9 @@ class OStatus
        /**
         * @brief Adds the person object element to the XML document
         *
-        * @param object $doc     XML document
-        * @param array  $owner   Contact data of the poster
-        * @param array  $contact Contact data of the target
+        * @param DOMDocument $doc     XML document
+        * @param array       $owner   Contact data of the poster
+        * @param array       $contact Contact data of the target
         *
         * @return object author element
         */
@@ -1769,8 +1807,8 @@ class OStatus
                $attributes = [
                                "rel" => "avatar",
                                "type" => "image/jpeg", // To-Do?
-                               "media:width" => 175,
-                               "media:height" => 175,
+                               "media:width" => 300,
+                               "media:height" => 300,
                                "href" => $contact["photo"]];
                XML::addElement($doc, $object, "link", "", $attributes);
 
@@ -1789,12 +1827,14 @@ class OStatus
        /**
         * @brief Adds a follow/unfollow entry element
         *
-        * @param object $doc      XML document
-        * @param array  $item     Data of the follow/unfollow message
-        * @param array  $owner    Contact data of the poster
-        * @param bool   $toplevel Is it for en entry element (false) or a feed entry (true)?
+        * @param DOMDocument $doc      XML document
+        * @param array       $item     Data of the follow/unfollow message
+        * @param array       $owner    Contact data of the poster
+        * @param bool        $toplevel Is it for en entry element (false) or a feed entry (true)?
         *
-        * @return object Entry element
+        * @return \DOMElement Entry element
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
        private static function followEntry(DOMDocument $doc, array $item, array $owner, $toplevel)
        {
@@ -1810,7 +1850,7 @@ class OStatus
                        $item['follow'] = $contact['alias'];
                }
 
-               $condition = ['uid' => $owner['uid'], 'nurl' => normalise_link($contact["url"])];
+               $condition = ['uid' => $owner['uid'], 'nurl' => Strings::normaliseLink($contact["url"])];
                $user_contact = DBA::selectFirst('contact', ['id'], $condition);
 
                if (DBA::isResult($user_contact)) {
@@ -1836,7 +1876,7 @@ class OStatus
 
                $item["body"] = sprintf($message, $owner["nick"], $contact["nick"]);
 
-               self::entryHeader($doc, $entry, $owner, $item, $toplevel);
+               $entry = self::entryHeader($doc, $owner, $item, $toplevel);
 
                self::entryContent($doc, $entry, $item, $owner, $title);
 
@@ -1851,26 +1891,39 @@ class OStatus
        /**
         * @brief Adds a regular entry element
         *
-        * @param object $doc      XML document
-        * @param array  $item     Data of the item that is to be posted
-        * @param array  $owner    Contact data of the poster
-        * @param bool   $toplevel Is it for en entry element (false) or a feed entry (true)?
+        * @param DOMDocument $doc       XML document
+        * @param array       $item      Data of the item that is to be posted
+        * @param array       $owner     Contact data of the poster
+        * @param bool        $toplevel  Is it for en entry element (false) or a feed entry (true)?
+        * @param bool        $feed_mode Behave like a regular feed for users if true
         *
-        * @return object Entry element
+        * @return \DOMElement Entry element
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
-       private static function noteEntry(DOMDocument $doc, array $item, array $owner, $toplevel)
+       private static function noteEntry(DOMDocument $doc, array $item, array $owner, $toplevel, $feed_mode)
        {
-               if (($item["id"] != $item["parent"]) && (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
-                       logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
+               if (($item["id"] != $item["parent"]) && (Strings::normaliseLink($item["author-link"]) != Strings::normaliseLink($owner["url"]))) {
+                       Logger::log("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", Logger::DEBUG);
+               }
+
+               if (!$toplevel) {
+                       if (!empty($item['title'])) {
+                               $title = BBCode::convert($item['title'], false, 7);
+                       } else {
+                               $title = sprintf("New note by %s", $owner["nick"]);
+                       }
+               } else {
+                       $title = sprintf("New comment by %s", $owner["nick"]);
                }
 
-               $title = self::entryHeader($doc, $entry, $owner, $item, $toplevel);
+               $entry = self::entryHeader($doc, $owner, $item, $toplevel);
 
                XML::addElement($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
 
-               self::entryContent($doc, $entry, $item, $owner, $title);
+               self::entryContent($doc, $entry, $item, $owner, $title, '', true, $feed_mode);
 
-               self::entryFooter($doc, $entry, $item, $owner);
+               self::entryFooter($doc, $entry, $item, $owner, !$feed_mode, $feed_mode);
 
                return $entry;
        }
@@ -1878,21 +1931,21 @@ class OStatus
        /**
         * @brief Adds a header element to the XML document
         *
-        * @param object $doc      XML document
-        * @param object $entry    The entry element where the elements are added
-        * @param array  $owner    Contact data of the poster
-        * @param bool   $toplevel Is it for en entry element (false) or a feed entry (true)?
+        * @param DOMDocument $doc      XML document
+        * @param array       $owner    Contact data of the poster
+        * @param array       $item
+        * @param bool        $toplevel Is it for en entry element (false) or a feed entry (true)?
         *
-        * @return string The title for the element
+        * @return \DOMElement The entry element where the elements are added
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
-       private static function entryHeader(DOMDocument $doc, &$entry, array $owner, array $item, $toplevel)
+       private static function entryHeader(DOMDocument $doc, array $owner, array $item, $toplevel)
        {
-               /// @todo Check if this title stuff is really needed (I guess not)
                if (!$toplevel) {
                        $entry = $doc->createElement("entry");
-                       $title = sprintf("New note by %s", $owner["nick"]);
 
-                       if ($owner['account-type'] == Contact::ACCOUNT_TYPE_COMMUNITY) {
+                       if ($owner['account-type'] == User::ACCOUNT_TYPE_COMMUNITY) {
                                $contact = self::contactEntry($item['author-link'], $owner);
                                $author = self::addAuthor($doc, $contact, false);
                                $entry->appendChild($author);
@@ -1911,36 +1964,37 @@ class OStatus
 
                        $author = self::addAuthor($doc, $owner);
                        $entry->appendChild($author);
-
-                       $title = sprintf("New comment by %s", $owner["nick"]);
                }
-               return $title;
+
+               return $entry;
        }
 
        /**
         * @brief Adds elements to the XML document
         *
-        * @param object $doc      XML document
-        * @param object $entry    Entry element where the content is added
-        * @param array  $item     Data of the item that is to be posted
-        * @param array  $owner    Contact data of the poster
-        * @param string $title    Title for the post
-        * @param string $verb     The activity verb
-        * @param bool   $complete Add the "status_net" element?
+        * @param DOMDocument $doc       XML document
+        * @param \DOMElement $entry     Entry element where the content is added
+        * @param array       $item      Data of the item that is to be posted
+        * @param array       $owner     Contact data of the poster
+        * @param string      $title     Title for the post
+        * @param string      $verb      The activity verb
+        * @param bool        $complete  Add the "status_net" element?
+        * @param bool        $feed_mode Behave like a regular feed for users if true
         * @return void
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
-       private static function entryContent(DOMDocument $doc, $entry, array $item, array $owner, $title, $verb = "", $complete = true)
+       private static function entryContent(DOMDocument $doc, \DOMElement $entry, array $item, array $owner, $title, $verb = "", $complete = true, $feed_mode = false)
        {
                if ($verb == "") {
                        $verb = self::constructVerb($item);
                }
 
                XML::addElement($doc, $entry, "id", $item["uri"]);
-               XML::addElement($doc, $entry, "title", $title);
+               XML::addElement($doc, $entry, "title", html_entity_decode($title, ENT_QUOTES, 'UTF-8'));
 
                $body = self::formatPicturePost($item['body']);
 
-               if ($item['title'] != "") {
+               if (!empty($item['title']) && !$feed_mode) {
                        $body = "[b]".$item['title']."[/b]\n\n".$body;
                }
 
@@ -1952,11 +2006,13 @@ class OStatus
                                                                "href" => System::baseUrl()."/display/".$item["guid"]]
                );
 
-               if ($complete && ($item["id"] > 0)) {
+               if (!$feed_mode && $complete && ($item["id"] > 0)) {
                        XML::addElement($doc, $entry, "status_net", "", ["notice_id" => $item["id"]]);
                }
 
-               XML::addElement($doc, $entry, "activity:verb", $verb);
+               if (!$feed_mode) {
+                       XML::addElement($doc, $entry, "activity:verb", $verb);
+               }
 
                XML::addElement($doc, $entry, "published", DateTimeFormat::utc($item["created"]."+00:00", DateTimeFormat::ATOM));
                XML::addElement($doc, $entry, "updated", DateTimeFormat::utc($item["edited"]."+00:00", DateTimeFormat::ATOM));
@@ -1965,14 +2021,16 @@ class OStatus
        /**
         * @brief Adds the elements at the foot of an entry to the XML document
         *
-        * @param object $doc      XML document
-        * @param object $entry    The entry element where the elements are added
-        * @param array  $item     Data of the item that is to be posted
-        * @param array  $owner    Contact data of the poster
-        * @param bool   $complete default true
+        * @param DOMDocument $doc       XML document
+        * @param object      $entry     The entry element where the elements are added
+        * @param array       $item      Data of the item that is to be posted
+        * @param array       $owner     Contact data of the poster
+        * @param bool        $complete  default true
+        * @param bool        $feed_mode Behave like a regular feed for users if true
         * @return void
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
-       private static function entryFooter(DOMDocument $doc, $entry, array $item, array $owner, $complete = true)
+       private static function entryFooter(DOMDocument $doc, $entry, array $item, array $owner, $complete = true, $feed_mode = false)
        {
                $mentioned = [];
 
@@ -2003,7 +2061,7 @@ class OStatus
                        XML::addElement($doc, $entry, "link", "", $attributes);
                }
 
-               if (intval($item["parent"]) > 0) {
+               if (!$feed_mode && (intval($item["parent"]) > 0)) {
                        $conversation_href = $conversation_uri = str_replace('/objects/', '/context/', $item['parent-uri']);
 
                        if (isset($parent_item)) {
@@ -2047,10 +2105,10 @@ class OStatus
                $mentioned = $newmentions;
 
                foreach ($mentioned as $mention) {
-                       $condition = ['uid' => $owner['uid'], 'nurl' => normalise_link($mention)];
+                       $condition = ['uid' => $owner['uid'], 'nurl' => Strings::normaliseLink($mention)];
                        $contact = DBA::selectFirst('contact', ['forum', 'prv', 'self', 'contact-type'], $condition);
-                       if ($contact["forum"] || $contact["prv"] || ($owner['contact-type'] == Contact::ACCOUNT_TYPE_COMMUNITY) ||
-                               ($contact['self'] && ($owner['account-type'] == Contact::ACCOUNT_TYPE_COMMUNITY))) {
+                       if ($contact["forum"] || $contact["prv"] || ($owner['contact-type'] == Contact::TYPE_COMMUNITY) ||
+                               ($contact['self'] && ($owner['account-type'] == User::ACCOUNT_TYPE_COMMUNITY))) {
                                XML::addElement($doc, $entry, "link", "",
                                        [
                                                "rel" => "mentioned",
@@ -2067,7 +2125,7 @@ class OStatus
                        }
                }
 
-               if ($owner['account-type'] == Contact::ACCOUNT_TYPE_COMMUNITY) {
+               if ($owner['account-type'] == User::ACCOUNT_TYPE_COMMUNITY) {
                        XML::addElement($doc, $entry, "link", "", [
                                "rel" => "mentioned",
                                "ostatus:object-type" => "http://activitystrea.ms/schema/1.0/group",
@@ -2075,7 +2133,7 @@ class OStatus
                        ]);
                }
 
-               if (!$item["private"]) {
+               if (!$item["private"] && !$feed_mode) {
                        XML::addElement($doc, $entry, "link", "", ["rel" => "ostatus:attention",
                                                                        "href" => "http://activityschema.org/collection/public"]);
                        XML::addElement($doc, $entry, "link", "", ["rel" => "mentioned",
@@ -2132,10 +2190,13 @@ class OStatus
         * @param integer $max_items   Number of maximum items to fetch
         * @param string  $filter      Feed items filter (activity, posts or comments)
         * @param boolean $nocache     Wether to bypass caching
+        * @param boolean $feed_mode   Behave like a regular feed for users if true
         *
         * @return string XML feed
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
-       public static function feed($owner_nick, &$last_update, $max_items = 300, $filter = 'activity', $nocache = false)
+       public static function feed($owner_nick, &$last_update, $max_items = 300, $filter = 'activity', $nocache = false, $feed_mode = false)
        {
                $stamp = microtime(true);
 
@@ -2152,7 +2213,7 @@ class OStatus
                if ((time() - strtotime($owner['last-item'])) < 15*60) {
                        $result = Cache::get($cachekey);
                        if (!$nocache && !is_null($result)) {
-                               logger('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created . ' (cached)', LOGGER_DEBUG);
+                               Logger::log('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created . ' (cached)', Logger::DEBUG);
                                $last_update = $result['last_update'];
                                return $result['feed'];
                        }
@@ -2174,7 +2235,7 @@ class OStatus
                        $condition[] = ACTIVITY_OBJ_COMMENT;
                }
 
-               if ($owner['account-type'] != Contact::ACCOUNT_TYPE_COMMUNITY) {
+               if ($owner['account-type'] != User::ACCOUNT_TYPE_COMMUNITY) {
                        $condition[0] .= " AND `contact-id` = ? AND `author-id` = ?";
                        $condition[] = $owner["id"];
                        $condition[] = $authorid;
@@ -2193,13 +2254,14 @@ class OStatus
                $doc = new DOMDocument('1.0', 'utf-8');
                $doc->formatOutput = true;
 
-               $root = self::addHeader($doc, $owner, $filter);
+               $root = self::addHeader($doc, $owner, $filter, $feed_mode);
 
                foreach ($items as $item) {
                        if (Config::get('system', 'ostatus_debug')) {
                                $item['body'] .= '🍼';
                        }
-                       $entry = self::entry($doc, $item, $owner);
+
+                       $entry = self::entry($doc, $item, $owner, false, $feed_mode);
                        $root->appendChild($entry);
 
                        if ($last_update < $item['created']) {
@@ -2212,7 +2274,7 @@ class OStatus
                $msg = ['feed' => $feeddata, 'last_update' => $last_update];
                Cache::set($cachekey, $msg, Cache::QUARTER_HOUR);
 
-               logger('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created, LOGGER_DEBUG);
+               Logger::log('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created, Logger::DEBUG);
 
                return $feeddata;
        }
@@ -2224,6 +2286,8 @@ class OStatus
         * @param array $owner Contact data of the poster
         *
         * @return string XML for the salmon
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
        public static function salmon(array $item, array $owner)
        {