]> git.mxchange.org Git - friendica.git/blobdiff - src/Content/Item.php
Preview of attached links work again
[friendica.git] / src / Content / Item.php
index d36112865127e737a952c001c1eb9dac82db6f91..968509deed8afbce8e6bdfc86ce5cc8f4b1fe353 100644 (file)
@@ -1,6 +1,6 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2022, the Friendica project
+ * @copyright Copyright (C) 2010-2023, the Friendica project
  *
  * @license GNU AGPL version 3 or any later version
  *
 
 namespace Friendica\Content;
 
+use Friendica\App;
+use Friendica\App\BaseURL;
 use Friendica\Content\Text\BBCode;
+use Friendica\Content\Text\BBCode\Video;
+use Friendica\Content\Text\HTML;
 use Friendica\Core\Hook;
 use Friendica\Core\L10n;
 use Friendica\Core\Logger;
+use Friendica\Core\PConfig\Capability\IManagePersonalConfigValues;
 use Friendica\Core\Protocol;
-use Friendica\Core\Session;
+use Friendica\Core\Session\Capability\IHandleUserSessions;
+use Friendica\Core\System;
 use Friendica\Database\DBA;
+use Friendica\Model\Attach;
 use Friendica\Model\Contact;
+use Friendica\Model\Conversation;
+use Friendica\Model\FileTag;
 use Friendica\Model\Group;
-use Friendica\Model\Item as ModelItem;
+use Friendica\Model\Item as ItemModel;
+use Friendica\Model\Photo;
 use Friendica\Model\Tag;
 use Friendica\Model\Post;
+use Friendica\Model\User;
+use Friendica\Network\HTTPException;
+use Friendica\Object\EMail\ItemCCEMail;
 use Friendica\Protocol\Activity;
+use Friendica\Util\ACLFormatter;
+use Friendica\Util\DateTimeFormat;
+use Friendica\Util\Emailer;
+use Friendica\Util\ParseUrl;
 use Friendica\Util\Profiler;
+use Friendica\Util\Proxy;
 use Friendica\Util\XML;
 
 /**
@@ -48,12 +66,33 @@ class Item
        private $l10n;
        /** @var Profiler */
        private $profiler;
-
-       public function __construct(Profiler $profiler, Activity $activity, L10n $l10n)
+       /** @var IHandleUserSessions */
+       private $userSession;
+       /** @var Video */
+       private $bbCodeVideo;
+       /** @var ACLFormatter */
+       private $aclFormatter;
+       /** @var IManagePersonalConfigValues */
+       private $pConfig;
+       /** @var BaseURL */
+       private $baseURL;
+       /** @var Emailer */
+       private $emailer;
+       /** @var App */
+       private $app;
+
+       public function __construct(Profiler $profiler, Activity $activity, L10n $l10n, IHandleUserSessions $userSession, Video $bbCodeVideo, ACLFormatter $aclFormatter, IManagePersonalConfigValues $pConfig, BaseURL $baseURL, Emailer $emailer, App $app)
        {
-               $this->profiler = $profiler;
-               $this->activity = $activity;
-               $this->l10n   = $l10n;
+               $this->profiler     = $profiler;
+               $this->activity     = $activity;
+               $this->l10n         = $l10n;
+               $this->userSession  = $userSession;
+               $this->bbCodeVideo  = $bbCodeVideo;
+               $this->aclFormatter = $aclFormatter;
+               $this->baseURL      = $baseURL;
+               $this->pConfig      = $pConfig;
+               $this->emailer      = $emailer;
+               $this->app          = $app;
        }
 
        /**
@@ -84,7 +123,7 @@ class Item
         *       ]
         *  ]
         */
-       public function determineCategoriesTerms(array $item, int $uid = 0)
+       public function determineCategoriesTerms(array $item, int $uid = 0): array
        {
                $categories = [];
                $folders = [];
@@ -92,7 +131,7 @@ class Item
 
                $uid = $item['uid'] ?: $uid;
 
-               if (!Post\Category::existsForURIId($item['uri-id'], $uid)) {
+               if (empty($item['has-categories'])) {
                        return [$categories, $folders];
                }
 
@@ -105,7 +144,7 @@ class Item
                        $categories[] = [
                                'name' => $savedFolderName,
                                'url' => $url,
-                               'removeurl' => local_user() == $uid ? 'filerm/' . $item['id'] . '?cat=' . rawurlencode($savedFolderName) : '',
+                               'removeurl' => $this->userSession->getLocalUserId() == $uid ? 'filerm/' . $item['id'] . '?cat=' . rawurlencode($savedFolderName) : '',
                                'first' => $first,
                                'last' => false
                        ];
@@ -116,12 +155,12 @@ class Item
                        $categories[count($categories) - 1]['last'] = true;
                }
 
-               if (local_user() == $uid) {
+               if ($this->userSession->getLocalUserId() == $uid) {
                        foreach (Post\Category::getArrayByURIId($item['uri-id'], $uid, Post\Category::FILE) as $savedFolderName) {
                                $folders[] = [
                                        'name' => $savedFolderName,
                                        'url' => "#",
-                                       'removeurl' => local_user() == $uid ? 'filerm/' . $item['id'] . '?term=' . rawurlencode($savedFolderName) : '',
+                                       'removeurl' => $this->userSession->getLocalUserId() == $uid ? 'filerm/' . $item['id'] . '?term=' . rawurlencode($savedFolderName) : '',
                                        'first' => $first,
                                        'last' => false
                                ];
@@ -140,16 +179,16 @@ class Item
         * This function removes the tag $tag from the text $body and replaces it with
         * the appropriate link.
         *
-        * @param string  $body        the text to replace the tag in
-        * @param integer $profile_uid the user id to replace the tag for (0 = anyone)
-        * @param string  $tag         the tag to replace
-        * @param string  $network     The network of the post
+        * @param string $body        the text to replace the tag in
+        * @param int    $profile_uid the user id to replace the tag for (0 = anyone)
+        * @param string $tag         the tag to replace
+        * @param string $network     The network of the post
         *
-        * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
+        * @return array|bool ['replaced' => $replaced, 'contact' => $contact] or "false" on if already replaced
         * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         * @throws \ImagickException
         */
-       public static function replaceTag(&$body, $profile_uid, $tag, $network = '')
+       public static function replaceTag(string &$body, int $profile_uid, string $tag, string $network = '')
        {
                $replaced = false;
 
@@ -243,71 +282,17 @@ class Item
        /**
         * Render actions localized
         *
-        * @param $item
+        * @param array $item
+        * @return void
         * @throws ImagickException
         * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
-       public function localize(&$item)
+       public function localize(array &$item)
        {
                $this->profiler->startRecording('rendering');
                /// @todo The following functionality needs to be cleaned up.
                if (!empty($item['verb'])) {
-                       $xmlhead = "<" . "?xml version='1.0' encoding='UTF-8' ?" . ">";
-
-                       if (stristr($item['verb'], Activity::POKE)) {
-                               $verb = urldecode(substr($item['verb'], strpos($item['verb'],'#') + 1));
-                               if (!$verb) {
-                                       $this->profiler->stopRecording();
-                                       return;
-                               }
-                               if ($item['object-type'] == "" || $item['object-type'] !== Activity\ObjectType::PERSON) {
-                                       $this->profiler->stopRecording();
-                                       return;
-                               }
-
-                               $obj = XML::parseString($xmlhead . $item['object']);
-
-                               $Bname = $obj->title;
-                               $Blink = $obj->id;
-                               $Bphoto = "";
-
-                               foreach ($obj->link as $l) {
-                                       $atts = $l->attributes();
-                                       switch ($atts['rel']) {
-                                               case "alternate": $Blink = $atts['href'];
-                                               case "photo": $Bphoto = $atts['href'];
-                                       }
-                               }
-
-                               $author = ['uid' => 0, 'id' => $item['author-id'],
-                                       'network' => $item['author-network'], 'url' => $item['author-link']];
-                               $A = '[url=' . Contact::magicLinkByContact($author) . ']' . $item['author-name'] . '[/url]';
-
-                               if (!empty($Blink)) {
-                                       $B = '[url=' . Contact::magicLink($Blink) . ']' . $Bname . '[/url]';
-                               } else {
-                                       $B = '';
-                               }
-
-                               if ($Bphoto != "" && !empty($Blink)) {
-                                       $Bphoto = '[url=' . Contact::magicLink($Blink) . '][img=80x80]' . $Bphoto . '[/img][/url]';
-                               }
-
-                               /*
-                               * we can't have a translation string with three positions but no distinguishable text
-                               * So here is the translate string.
-                               */
-                               $txt = $this->l10n->t('%1$s poked %2$s');
-
-                               // now translate the verb
-                               $poked_t = trim(sprintf($txt, '', ''));
-                               $txt = str_replace($poked_t, $this->l10n->t($verb), $txt);
-
-                               // then do the sprintf on the translation string
-
-                               $item['body'] = sprintf($txt, $A, $B) . "\n\n\n" . $Bphoto;
-
-                       }
+                       $xmlhead = '<?xml version="1.0" encoding="UTF-8" ?>';
 
                        if ($this->activity->match($item['verb'], Activity::TAG)) {
                                $fields = ['author-id', 'author-link', 'author-name', 'author-network',
@@ -318,12 +303,20 @@ class Item
                                        return;
                                }
 
-                               $author_arr = ['uid' => 0, 'id' => $item['author-id'],
-                                       'network' => $item['author-network'], 'url' => $item['author-link']];
+                               $author_arr = [
+                                       'uid' => 0,
+                                       'id' => $item['author-id'],
+                                       'network' => $item['author-network'],
+                                       'url' => $item['author-link'],
+                               ];
                                $author  = '[url=' . Contact::magicLinkByContact($author_arr) . ']' . $item['author-name'] . '[/url]';
 
-                               $author_arr = ['uid' => 0, 'id' => $obj['author-id'],
-                                       'network' => $obj['author-network'], 'url' => $obj['author-link']];
+                               $author_arr = [
+                                       'uid' => 0,
+                                       'id' => $obj['author-id'],
+                                       'network' => $obj['author-network'],
+                                       'url' => $obj['author-link'],
+                               ];
                                $objauthor  = '[url=' . Contact::magicLinkByContact($author_arr) . ']' . $obj['author-name'] . '[/url]';
 
                                switch ($obj['verb']) {
@@ -336,6 +329,7 @@ class Item
                                                                $post_type = $this->l10n->t('status');
                                                }
                                                break;
+
                                        default:
                                                if ($obj['resource-id']) {
                                                        $post_type = $this->l10n->t('photo');
@@ -359,33 +353,37 @@ class Item
                $this->profiler->stopRecording();
        }
 
-       public function photoMenu($item, string $formSecurityToken)
+       /**
+        * Renders photo menu based on item
+        *
+        * @param array $item
+        * @param string $formSecurityToken
+        * @return string
+        */
+       public function photoMenu(array $item, string $formSecurityToken): string
        {
                $this->profiler->startRecording('rendering');
-               $sub_link = '';
-               $poke_link = '';
-               $contact_url = '';
-               $pm_url = '';
-               $status_link = '';
-               $photos_link = '';
-               $posts_link = '';
-               $block_link = '';
-               $ignore_link = '';
-
-               if (local_user() && local_user() == $item['uid'] && $item['gravity'] == GRAVITY_PARENT && !$item['self'] && !$item['mention']) {
+               $sub_link = $contact_url = $pm_url = $status_link = '';
+               $photos_link = $posts_link = $block_link = $ignore_link = '';
+
+               if ($this->userSession->getLocalUserId() && $this->userSession->getLocalUserId() == $item['uid'] && $item['gravity'] == ItemModel::GRAVITY_PARENT && !$item['self'] && !$item['mention']) {
                        $sub_link = 'javascript:doFollowThread(' . $item['id'] . '); return false;';
                }
 
-               $author = ['uid' => 0, 'id' => $item['author-id'],
-                       'network' => $item['author-network'], 'url' => $item['author-link']];
+               $author = [
+                       'uid' => 0,
+                       'id' => $item['author-id'],
+                       'network' => $item['author-network'],
+                       'url' => $item['author-link'],
+               ];
                $profile_link = Contact::magicLinkByContact($author, $item['author-link']);
-               $sparkle = (strpos($profile_link, 'redir/') === 0);
+               $sparkle = (strpos($profile_link, 'contact/redir/') === 0);
 
                $cid = 0;
                $pcid = $item['author-id'];
                $network = '';
                $rel = 0;
-               $condition = ['uid' => local_user(), 'uri-id' => $item['author-uri-id']];
+               $condition = ['uid' => $this->userSession->getLocalUserId(), 'uri-id' => $item['author-uri-id']];
                $contact = DBA::selectFirst('contact', ['id', 'network', 'rel'], $condition);
                if (DBA::isResult($contact)) {
                        $cid = $contact['id'];
@@ -395,7 +393,7 @@ class Item
 
                if ($sparkle) {
                        $status_link = $profile_link . '/status';
-                       $photos_link = str_replace('/profile/', '/photos/', $profile_link);
+                       $photos_link = $profile_link . '/photos';
                        $profile_link = $profile_link . '/profile';
                }
 
@@ -408,7 +406,6 @@ class Item
 
                if ($cid && !$item['self']) {
                        $contact_url = 'contact/' . $cid;
-                       $poke_link   = $contact_url . '/poke';
                        $posts_link  = $contact_url . '/posts';
 
                        if (in_array($network, [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::DIASPORA])) {
@@ -416,7 +413,7 @@ class Item
                        }
                }
 
-               if (local_user()) {
+               if ($this->userSession->getLocalUserId()) {
                        $menu = [
                                $this->l10n->t('Follow Thread') => $sub_link,
                                $this->l10n->t('View Status') => $status_link,
@@ -430,16 +427,12 @@ class Item
                        ];
 
                        if (!empty($item['language'])) {
-                               $menu[$this->l10n->t('Languages')] = 'javascript:alert(\'' . ModelItem::getLanguageMessage($item) . '\');';
-                       }
-
-                       if ($network == Protocol::DFRN) {
-                               $menu[$this->l10n->t("Poke")] = $poke_link;
+                               $menu[$this->l10n->t('Languages')] = 'javascript:alert(\'' . ItemModel::getLanguageMessage($item) . '\');';
                        }
 
                        if ((($cid == 0) || ($rel == Contact::FOLLOWER)) &&
                                in_array($item['network'], Protocol::FEDERATED)) {
-                               $menu[$this->l10n->t('Connect/Follow')] = 'follow?url=' . urlencode($item['author-link']) . '&auto=1';
+                               $menu[$this->l10n->t('Connect/Follow')] = 'contact/follow?url=' . urlencode($item['author-link']) . '&auto=1';
                        }
                } else {
                        $menu = [$this->l10n->t('View Profile') => $item['author-link']];
@@ -464,24 +457,28 @@ class Item
                return $o;
        }
 
-       public function visibleActivity($item) {
-
+       /**
+        * Checks if the activity is visible to current user
+        *
+        * @param array $item Activity item
+        * @return bool Whether the item is visible to the user
+        */
+       public function isVisibleActivity(array $item): bool
+       {
+               // Empty verb or hidden?
                if (empty($item['verb']) || $this->activity->isHidden($item['verb'])) {
                        return false;
                }
 
-               // @TODO below if() block can be rewritten to a single line: $isVisible = allConditionsHere;
-               if ($this->activity->match($item['verb'], Activity::FOLLOW) &&
+               // Check conditions
+               return (!($this->activity->match($item['verb'], Activity::FOLLOW) &&
                        $item['object-type'] === Activity\ObjectType::NOTE &&
                        empty($item['self']) &&
-                       $item['uid'] == local_user()) {
-                       return false;
-               }
-
-               return true;
+                       $item['uid'] == $this->userSession->getLocalUserId())
+               );
        }
 
-       public function expandTags(array $item, bool $setPermissions = false)
+       public function expandTags(array $item, bool $setPermissions = false): array
        {
                // Look for any tags and linkify them
                $item['inform'] = '';
@@ -497,6 +494,9 @@ class Item
                // Search for forum mentions
                foreach (Tag::getFromBody($item['body'], Tag::TAG_CHARACTER[Tag::MENTION] . Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]) as $tag) {
                        $contact = Contact::getByURLForUser($tag[2], $item['uid']);
+                       if (empty($contact)) {
+                               continue;
+                       }
 
                        $receivers[] = $contact['id'];
 
@@ -505,7 +505,7 @@ class Item
                        }
                        $item['inform'] .= 'cid:' . $contact['id'];
 
-                       if (($item['gravity'] == GRAVITY_COMMENT) || empty($contact['cid']) || ($contact['contact-type'] != Contact::TYPE_COMMUNITY)) {
+                       if (($item['gravity'] == ItemModel::GRAVITY_COMMENT) || empty($contact['cid']) || ($contact['contact-type'] != Contact::TYPE_COMMUNITY)) {
                                continue;
                        }
 
@@ -527,9 +527,9 @@ class Item
                }
                Logger::info('Got inform', ['inform' => $item['inform']]);
 
-               if (($item['gravity'] == GRAVITY_PARENT) && !empty($forum_contact) && ($private_forum || $only_to_forum)) {
+               if (($item['gravity'] == ItemModel::GRAVITY_PARENT) && !empty($forum_contact) && ($private_forum || $only_to_forum)) {
                        // we tagged a forum in a top level post. Now we change the post
-                       $item['private'] = $private_forum ? ModelItem::PRIVATE : ModelItem::UNLISTED;
+                       $item['private'] = $private_forum ? ItemModel::PRIVATE : ItemModel::UNLISTED;
 
                        if ($only_to_forum) {
                                $item['postopts'] = '';
@@ -545,14 +545,14 @@ class Item
                                $item['allow_cid'] = '';
                                $item['allow_gid'] = '';
                        }
-               } elseif ($setPermissions && ($item['gravity'] == GRAVITY_PARENT)) {
+               } elseif ($setPermissions && ($item['gravity'] == ItemModel::GRAVITY_PARENT)) {
                        if (empty($receivers)) {
                                // For security reasons direct posts without any receiver will be posts to yourself
                                $self = Contact::selectFirst(['id'], ['uid' => $item['uid'], 'self' => true]);
                                $receivers[] = $self['id'];
                        }
 
-                       $item['private']   = ModelItem::PRIVATE;
+                       $item['private']   = ItemModel::PRIVATE;
                        $item['allow_cid'] = '';
                        $item['allow_gid'] = '';
                        $item['deny_cid']  = '';
@@ -564,4 +564,461 @@ class Item
                }
                return $item;
        }
+
+       public function getAuthorAvatar(array $item): string
+       {
+               if (in_array($item['network'], [Protocol::FEED, Protocol::MAIL])) {
+                       $author_avatar  = $item['contact-id'];
+                       $author_updated = '';
+                       $author_thumb   = $item['contact-avatar'];
+               } else {
+                       $author_avatar  = $item['author-id'];
+                       $author_updated = $item['author-updated'];
+                       $author_thumb   = $item['author-avatar'];
+               }
+
+
+               if (empty($author_thumb) || Photo::isPhotoURI($author_thumb)) {
+                       $author_thumb = Contact::getAvatarUrlForId($author_avatar, Proxy::SIZE_THUMB, $author_updated);
+               }
+
+               return $author_thumb;
+       }
+
+       public function getOwnerAvatar(array $item): string
+       {
+               if (in_array($item['network'], [Protocol::FEED, Protocol::MAIL])) {
+                       $owner_avatar  = $item['contact-id'];
+                       $owner_updated = '';
+                       $owner_thumb   = $item['contact-avatar'];
+               } else {
+                       $owner_avatar   = $item['owner-id'];
+                       $owner_updated  = $item['owner-updated'];
+                       $owner_thumb    = $item['owner-avatar'];
+               }
+
+               if (empty($owner_thumb) || Photo::isPhotoURI($owner_thumb)) {
+                       $owner_thumb = Contact::getAvatarUrlForId($owner_avatar, Proxy::SIZE_THUMB, $owner_updated);
+               }
+
+               return $owner_thumb;
+       }
+
+       /**
+        * Add a share block for the given uri-id
+        *
+        * @param array  $item
+        * @param string $body
+        * @return string
+        */
+       public function addSharedPost(array $item, string $body = ''): string
+       {
+               if (empty($body)) {
+                       $body = $item['body'];
+               }
+
+               if (empty($item['quote-uri-id'])) {
+                       return $body;
+               }
+
+               $fields = ['uri-id', 'uri', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink', 'network', 'quote-uri-id'];
+               $shared_item = Post::selectFirst($fields, ['uri-id' => $item['quote-uri-id'], 'uid' => [$item['uid'], 0], 'private' => [ItemModel::PUBLIC, ItemModel::UNLISTED]]);
+               if (!DBA::isResult($shared_item)) {
+                       Logger::notice('Post does not exist.', ['uri-id' => $item['quote-uri-id'], 'uid' => $item['uid']]);
+                       return $body;
+               }
+
+               return trim(BBCode::removeSharedData($body) . "\n" . $this->createSharedBlockByArray($shared_item, true));
+       }
+
+       /**
+        * Add a share block for the given guid
+        *
+        * @param string $guid
+        * @param integer $uid
+        * @param bool $add_media
+        * @return string
+        */
+       private function createSharedPostByGuid(string $guid, bool $add_media): string
+       {
+               $fields = ['uri-id', 'uri', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink', 'network'];
+               $shared_item = Post::selectFirst($fields, ['guid' => $guid, 'uid' => 0, 'private' => [ItemModel::PUBLIC, ItemModel::UNLISTED]]);
+
+               if (!DBA::isResult($shared_item)) {
+                       Logger::notice('Post does not exist.', ['guid' => $guid]);
+                       return '';
+               }
+
+               return $this->createSharedBlockByArray($shared_item, $add_media);
+       }
+
+       /**
+        * Add a share block for the given item array
+        *
+        * @param array $item
+        * @param bool $add_media
+        * @return string
+        */
+       public function createSharedBlockByArray(array $item, bool $add_media = false): string
+       {
+               if ($item['network'] == Protocol::FEED) {
+                       return PageInfo::getFooterFromUrl($item['plink']);
+               } elseif (!in_array($item['network'] ?? '', Protocol::FEDERATED)) {
+                       $item['guid'] = '';
+                       $item['uri']  = '';
+               }
+
+               if ($add_media) {
+                       $item['body'] = Post\Media::addAttachmentsToBody($item['uri-id'], $item['body']);
+               }
+
+               $shared_content = BBCode::getShareOpeningTag($item['author-name'], $item['author-link'], $item['author-avatar'], $item['plink'], $item['created'], $item['guid'], $item['uri']);
+
+               if (!empty($item['title'])) {
+                       $shared_content .= '[h3]' . $item['title'] . "[/h3]\n";
+               }
+
+               $shared = $this->getShareArray($item);
+
+               // If it is a reshared post then reformat it to avoid display problems with two share elements
+               if (!empty($shared)) {
+                       if (!empty($shared['guid']) && ($encaspulated_share = $this->createSharedPostByGuid($shared['guid'], true))) {
+                               if (!empty(BBCode::fetchShareAttributes($item['body']))) {
+                                       $item['body'] = preg_replace("/\[share.*?\](.*)\[\/share\]/ism", $encaspulated_share, $item['body']);
+                               } else {
+                                       $item['body'] .= $encaspulated_share;
+                               }
+                       }
+                       $item['body'] = HTML::toBBCode(BBCode::convertForUriId($item['uri-id'], $item['body'], BBCode::ACTIVITYPUB));
+               }
+
+               $shared_content .= $item['body'] . '[/share]';
+
+               return $shared_content;
+       }
+
+       /**
+        * Return the shared post from an item array (if the item is shared item)
+        *
+        * @param array $item
+        * @param array $fields
+        *
+        * @return array with the shared post
+        */
+       public function getSharedPost(array $item, array $fields = []): array
+       {
+               if (!empty($item['quote-uri-id'])) {
+                       $shared = Post::selectFirst($fields, ['uri-id' => $item['quote-uri-id'], 'uid' => [0, $item['uid'] ?? 0]]);
+                       if (is_array($shared)) {
+                               return [
+                                       'comment' => BBCode::removeSharedData($item['body'] ?? ''),
+                                       'post'    => $shared
+                               ];
+                       }
+               }
+
+               $attributes = BBCode::fetchShareAttributes($item['body'] ?? '');
+               if (!empty($attributes)) {
+                       $shared = Post::selectFirst($fields, ['guid' => $attributes['guid'], 'uid' => [0, $item['uid'] ?? 0]]);
+                       if (is_array($shared)) {
+                               return [
+                                       'comment' => $attributes['comment'],
+                                       'post'    => $shared
+                               ];
+                       }
+               }
+
+               return [];
+       }
+
+       /**
+        * Return share data from an item array (if the item is shared item)
+        * We are providing the complete Item array, because at some time in the future
+        * we hopefully will define these values not in the body anymore but in some item fields.
+        * This function is meant to replace all similar functions in the system.
+        *
+        * @param array $item
+        *
+        * @return array with share information
+        */
+       private function getShareArray(array $item): array
+       {
+               $attributes = BBCode::fetchShareAttributes($item['body'] ?? '');
+               if (!empty($attributes)) {
+                       return $attributes;
+               }
+
+               if (!empty($item['quote-uri-id'])) {
+                       $shared = Post::selectFirst(['author-name', 'author-link', 'author-avatar', 'plink', 'created', 'guid', 'uri', 'body'], ['uri-id' => $item['quote-uri-id']]);
+                       if (!empty($shared)) {
+                               return [
+                                       'author'     => $shared['author-name'],
+                                       'profile'    => $shared['author-link'],
+                                       'avatar'     => $shared['author-avatar'],
+                                       'link'       => $shared['plink'],
+                                       'posted'     => $shared['created'],
+                                       'guid'       => $shared['guid'],
+                                       'message_id' => $shared['uri'],
+                                       'comment'    => $item['body'],
+                                       'shared'     => $shared['body'],
+                               ];
+                       }
+               }
+
+               return [];
+       }
+
+       /**
+        * Add a link to a shared post at the end of the post
+        *
+        * @param string  $body
+        * @param integer $quote_uri_id
+        * @return string
+        */
+       public function addShareLink(string $body, int $quote_uri_id): string
+       {
+               $post = Post::selectFirstPost(['uri', 'plink'], ['uri-id' => $quote_uri_id]);
+               if (empty($post)) {
+                       return $body;
+               }
+
+               $body = BBCode::removeSharedData($body);
+
+               $body .= "\n♲ " . ($post['plink'] ?: $post['uri']);
+
+               return $body;
+       }
+
+       public function storeAttachmentFromRequest(array $request): string
+       {
+               $attachment_type  = $request['attachment_type'] ??  '';
+               $attachment_title = $request['attachment_title'] ?? '';
+               $attachment_text  = $request['attachment_text'] ??  '';
+
+               $attachment_url     = hex2bin($request['attachment_url'] ??     '');
+               $attachment_img_src = hex2bin($request['attachment_img_src'] ?? '');
+
+               $attachment_img_width  = $request['attachment_img_width'] ??  0;
+               $attachment_img_height = $request['attachment_img_height'] ?? 0;
+
+               // Fetch the basic attachment data
+               $attachment = ParseUrl::getSiteinfoCached($attachment_url);
+               unset($attachment['keywords']);
+
+               // Overwrite the basic data with possible changes from the frontend
+               $attachment['type'] = $attachment_type;
+               $attachment['title'] = $attachment_title;
+               $attachment['text'] = $attachment_text;
+               $attachment['url'] = $attachment_url;
+
+               if (!empty($attachment_img_src)) {
+                       $attachment['images'] = [
+                               0 => [
+                                       'src'    => $attachment_img_src,
+                                       'width'  => $attachment_img_width,
+                                       'height' => $attachment_img_height
+                               ]
+                       ];
+               } else {
+                       unset($attachment['images']);
+               }
+
+               return "\n" . PageInfo::getFooterFromData($attachment);
+       }
+
+       public function addCategories(array $post, string $category): array
+       {
+               if (!empty($post['file'])) {
+                       // get the "fileas" tags for this post
+                       $filedas = FileTag::fileToArray($post['file']);
+               }
+
+               $list_array = explode(',', trim($category));
+               $post['file'] = FileTag::arrayToFile($list_array, 'category');
+
+               if (!empty($filedas) && is_array($filedas)) {
+                       // append the fileas stuff to the new categories list
+                       $post['file'] .= FileTag::arrayToFile($filedas);
+               }
+               return $post;
+       }
+
+       public function getACL(array $post, array $toplevel_item, array $request): array
+       {
+               // If this is a comment, set the permissions from the parent.
+               if ($toplevel_item) {
+                       $post['allow_cid'] = $toplevel_item['allow_cid'] ?? '';
+                       $post['allow_gid'] = $toplevel_item['allow_gid'] ?? '';
+                       $post['deny_cid']  = $toplevel_item['deny_cid'] ?? '';
+                       $post['deny_gid']  = $toplevel_item['deny_gid'] ?? '';
+                       $post['private']   = $toplevel_item['private'];
+                       return $post;
+               }
+
+               $user = User::getById($post['uid'], ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid']);
+               if (!DBA::isResult($user)) {
+                       throw new HTTPException\NotFoundException($this->l10n->t('Unable to locate original post.'));
+               }
+
+               $post['allow_cid'] = isset($request['contact_allow']) ? $this->aclFormatter->toString($request['contact_allow']) : $user['allow_cid'] ?? '';
+               $post['allow_gid'] = isset($request['group_allow'])   ? $this->aclFormatter->toString($request['group_allow'])   : $user['allow_gid'] ?? '';
+               $post['deny_cid']  = isset($request['contact_deny'])  ? $this->aclFormatter->toString($request['contact_deny'])  : $user['deny_cid']  ?? '';
+               $post['deny_gid']  = isset($request['group_deny'])    ? $this->aclFormatter->toString($request['group_deny'])    : $user['deny_gid']  ?? '';
+
+               $visibility = $request['visibility'] ?? '';
+               if ($visibility === 'public') {
+                       // The ACL selector introduced in version 2019.12 sends ACL input data even when the Public visibility is selected
+                       $post['allow_cid'] = $post['allow_gid'] = $post['deny_cid'] = $post['deny_gid'] = '';
+               } else if ($visibility === 'custom') {
+                       // Since we know from the visibility parameter the item should be private, we have to prevent the empty ACL
+                       // case that would make it public. So we always append the author's contact id to the allowed contacts.
+                       // See https://github.com/friendica/friendica/issues/9672
+                       $post['allow_cid'] .= $this->aclFormatter->toString(Contact::getPublicIdByUserId($post['uid']));
+               }
+
+               if (strlen($post['allow_gid']) || strlen($post['allow_cid']) || strlen($post['deny_gid']) || strlen($post['deny_cid'])) {
+                       $post['private'] = ItemModel::PRIVATE;
+               } elseif ($this->pConfig->get($post['uid'], 'system', 'unlisted')) {
+                       $post['private'] = ItemModel::UNLISTED;
+               } else {
+                       $post['private'] = ItemModel::PUBLIC;
+               }
+
+               return $post;
+       }
+
+       public function moveAttachmentsFromBodyToAttach(array $post): array
+       {
+               if (!preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$post['body'], $match)) {
+                       return $post;
+               }
+
+               foreach ($match[2] as $attachment_id) {
+                       $attachment = Attach::selectFirst(['id', 'uid', 'filename', 'filesize', 'filetype'], ['id' => $attachment_id, 'uid' => $post['uid']]);
+                       if (empty($attachment)) {
+                               continue;
+                       }
+                       if (strlen($post['attach'])) {
+                               $post['attach'] .= ',';
+                       }
+                       $post['attach'] .= Post\Media::getAttachElement($this->baseURL->get() . '/attach/' . $attachment['id'],
+                               $attachment['filesize'], $attachment['filetype'], $attachment['filename'] ?? '');
+
+                       $fields = ['allow_cid' => $post['allow_cid'], 'allow_gid' => $post['allow_gid'],
+                                       'deny_cid' => $post['deny_cid'], 'deny_gid' => $post['deny_gid']];
+                       $condition = ['id' => $attachment_id];
+                       Attach::update($fields, $condition);
+               }
+
+               $post['body'] = str_replace($match[1], '', $post['body']);
+
+               return $post;
+       }
+
+       private function setObjectType(array $post): array
+       {
+               if (empty($post['post-type'])) {
+                       $post['post-type'] = empty($post['title']) ? ItemModel::PT_NOTE : ItemModel::PT_ARTICLE;
+               }
+
+               // embedded bookmark or attachment in post? set bookmark flag
+               $data = BBCode::getAttachmentData($post['body']);
+               if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $post['body'], $match, PREG_SET_ORDER) || isset($data['type']))
+                       && ($post['post-type'] != ItemModel::PT_PERSONAL_NOTE)) {
+                       $post['post-type'] = ItemModel::PT_PAGE;
+                       $post['object-type'] = Activity\ObjectType::BOOKMARK;
+               }
+
+               // Setting the object type if not defined before
+               if (empty($post['object-type'])) {
+                       $post['object-type'] = ($post['gravity'] == ItemModel::GRAVITY_PARENT) ? Activity\ObjectType::NOTE : Activity\ObjectType::COMMENT;
+
+                       $objectdata = BBCode::getAttachedData($post['body']);
+
+                       if ($objectdata['type'] == 'link') {
+                               $post['object-type'] = Activity\ObjectType::BOOKMARK;
+                       } elseif ($objectdata['type'] == 'video') {
+                               $post['object-type'] = Activity\ObjectType::VIDEO;
+                       } elseif ($objectdata['type'] == 'photo') {
+                               $post['object-type'] = Activity\ObjectType::IMAGE;
+                       }
+               }
+               return $post;
+       }
+
+       public function initializePost(array $post): array
+       {
+               $post['network']   = Protocol::DFRN;
+               $post['protocol']  = Conversation::PARCEL_DIRECT;
+               $post['direction'] = Conversation::PUSH;
+               $post['received']  = DateTimeFormat::utcNow();
+               $post['origin']    = true;
+               $post['wall']      = $post['wall'] ?? true;
+               $post['guid']      = $post['guid'] ?? System::createUUID();
+               $post['uri']       = $post['uri']  ?? ItemModel::newURI($post['guid']);
+               $post['verb']      = $post['verb'] ?? Activity::POST;
+               $owner = User::getOwnerDataById($post['uid']);
+
+               if (empty($post['contact-id'])) {
+                       $post['contact-id'] = $owner['id'];
+               }
+
+               if (empty($post['author-link']) && empty($post['author-id'])) {
+                       $post['author-link']   = $owner['url'];
+                       $post['author-id']     = Contact::getIdForURL($post['author-link']);
+                       $post['author-name']   = $owner['name'];
+                       $post['author-avatar'] = $owner['thumb'];
+               }
+
+               if (empty($post['owner-link']) && empty($post['owner-id'])) {
+                       $post['owner-link']   = $post['author-link'];
+                       $post['owner-id']     = Contact::getIdForURL($post['owner-link']);
+                       $post['owner-name']   = $post['author-name'];
+                       $post['owner-avatar'] = $post['author-avatar'];
+               }
+
+               return $post;
+       }
+
+       public function finalizePost(array $post): array
+       {
+               if (preg_match("/\[attachment\](.*?)\[\/attachment\]/ism", $post['body'], $matches)) {
+                       $post['body'] = preg_replace("/\[attachment].*?\[\/attachment\]/ism", PageInfo::getFooterFromUrl($matches[1]), $post['body']);
+               }
+
+               // Convert links with empty descriptions to links without an explicit description
+               $post['body'] = trim(preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $post['body']));
+               $post['body'] = $this->bbCodeVideo->transform($post['body']);
+               $post['body'] = BBCode::scaleExternalImages($post['body']);
+               $post = $this->setObjectType($post);
+
+               // Personal notes must never be altered to a forum post.
+               if ($post['post-type'] != ItemModel::PT_PERSONAL_NOTE) {
+                       // Look for any tags and linkify them
+                       $post = $this->expandTags($post);
+               }
+
+               return $post;
+       }
+
+       public function postProcessPost(array $post, array $recipients = [])
+       {
+               if (!\Friendica\Content\Feature::isEnabled($post['uid'], 'explicit_mentions') && ($post['gravity'] == ItemModel::GRAVITY_COMMENT)) {
+                       Tag::createImplicitMentions($post['uri-id'], $post['thr-parent-id']);
+               }
+
+               Hook::callAll('post_local_end', $post);
+
+               $author = DBA::selectFirst('contact', ['thumb'], ['uid' => $post['uid'], 'self' => true]);
+
+               foreach ($recipients as $recipient) {
+                       $address = trim($recipient);
+                       if (!strlen($address)) {
+                               continue;
+                       }
+
+                       $this->emailer->send(new ItemCCEMail($this->app, $this->l10n, $this->baseURL,
+                               $post, $address, $author['thumb'] ?? ''));
+               }
+       }
 }