]> git.mxchange.org Git - friendica.git/blobdiff - include/enotify.php
Issue 7664: Don't notify every time a contact posted something
[friendica.git] / include / enotify.php
index d8e5614c171034ae4270eb5d38bceaddb765400b..da469b99b35075e6611eae144513cf51c4908230 100644 (file)
@@ -4,32 +4,39 @@
  */
 
 use Friendica\Content\Text\BBCode;
-use Friendica\Core\Addon;
 use Friendica\Core\Config;
+use Friendica\Core\Hook;
 use Friendica\Core\L10n;
+use Friendica\Core\Logger;
+use Friendica\Core\Renderer;
 use Friendica\Core\System;
 use Friendica\Database\DBA;
 use Friendica\Model\Contact;
 use Friendica\Model\Item;
+use Friendica\Model\User;
+use Friendica\Protocol\Activity;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Util\Emailer;
+use Friendica\Util\Strings;
 
 /**
  * @brief Creates a notification entry and possibly sends a mail
  *
  * @param array $params Array with the elements:
- *                     uid, item, parent, type, otype, verb, event,
- *                     link, subject, body, to_name, to_email, source_name,
- *                     source_link, activity, preamble, notify_flags,
- *                     language, show_in_notification_page
+ *                      uid, item, parent, type, otype, verb, event,
+ *                      link, subject, body, to_name, to_email, source_name,
+ *                      source_link, activity, preamble, notify_flags,
+ *                      language, show_in_notification_page
+ * @return bool
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  */
 function notification($params)
 {
-       $a = get_app();
+       $a = \get_app();
 
        // Temporary logging for finding the origin
-       if (!isset($params['language']) || !isset($params['uid'])) {
-               logger('Missing parameters.' . System::callstack());
+       if (!isset($params['uid'])) {
+               Logger::notice('Missing parameters "uid".', ['params' => $params, 'callstack' => System::callstack()]);
        }
 
        // Ensure that the important fields are set at any time
@@ -37,14 +44,14 @@ function notification($params)
        $user = DBA::selectFirst('user', $fields, ['uid' => $params['uid']]);
 
        if (!DBA::isResult($user)) {
-               logger('Unknown user ' . $params['uid']);
-               return;
+               Logger::error('Unknown user', ['uid' =>  $params['uid']]);
+               return false;
        }
 
-       $params['notify_flags'] = defaults($params, 'notify_flags', $user['notify-flags']);
-       $params['language']     = defaults($params, 'language'    , $user['language']);
-       $params['to_name']      = defaults($params, 'to_name'     , $user['username']);
-       $params['to_email']     = defaults($params, 'to_email'    , $user['email']);
+       $params['notify_flags'] = ($params['notify_flags'] ?? '') ?: $user['notify-flags'];
+       $params['language']     = ($params['language']     ?? '') ?: $user['language'];
+       $params['to_name']      = ($params['to_name']      ?? '') ?: $user['username'];
+       $params['to_email']     = ($params['to_email']     ?? '') ?: $user['email'];
 
        // from here on everything is in the recipients language
        L10n::pushLang($params['language']);
@@ -73,8 +80,8 @@ function notification($params)
                        ['uid' => $params['uid']]);
 
                // There is no need to create notifications for forum accounts
-               if (!DBA::isResult($user) || in_array($user["page-flags"], [Contact::PAGE_COMMUNITY, Contact::PAGE_PRVGROUP])) {
-                       return;
+               if (!DBA::isResult($user) || in_array($user["page-flags"], [User::PAGE_FLAGS_COMMUNITY, User::PAGE_FLAGS_PRVGROUP])) {
+                       return false;
                }
                $nickname = $user["nickname"];
        } else {
@@ -84,7 +91,7 @@ function notification($params)
        // with $params['show_in_notification_page'] == false, the notification isn't inserted into
        // the database, and an email is sent if applicable.
        // default, if not specified: true
-       $show_in_notification_page = ((x($params, 'show_in_notification_page')) ? $params['show_in_notification_page']:true);
+       $show_in_notification_page = isset($params['show_in_notification_page']) ? $params['show_in_notification_page'] : true;
 
        $additional_mail_header = "";
        $additional_mail_header .= "Precedence: list\n";
@@ -115,6 +122,12 @@ function notification($params)
        }
 
        $epreamble = '';
+       $preamble  = '';
+       $subject   = '';
+       $sitelink  = '';
+       $tsitelink = '';
+       $hsitelink = '';
+       $itemlink  = '';
 
        if ($params['type'] == NOTIFY_MAIL) {
                $itemlink = $siteurl.'/message/'.$params['item']['id'];
@@ -123,18 +136,19 @@ function notification($params)
                $subject = L10n::t('[Friendica:Notify] New mail received at %s', $sitename);
 
                $preamble = L10n::t('%1$s sent you a new private message at %2$s.', $params['source_name'], $sitename);
-               $epreamble = L10n::t('%1$s sent you %2$s.', '[url='.$params['source_link'].']'.$params['source_name'].'[/url]', '[url=$itemlink]'.L10n::t('a private message').'[/url]');
+               $epreamble = L10n::t('%1$s sent you %2$s.', '[url='.$params['source_link'].']'.$params['source_name'].'[/url]', '[url=' . $itemlink . ']'.L10n::t('a private message').'[/url]');
 
                $sitelink = L10n::t('Please visit %s to view and/or reply to your private messages.');
                $tsitelink = sprintf($sitelink, $siteurl.'/message/'.$params['item']['id']);
                $hsitelink = sprintf($sitelink, '<a href="'.$siteurl.'/message/'.$params['item']['id'].'">'.$sitename.'</a>');
        }
 
-       if ($params['type'] == NOTIFY_COMMENT) {
-               $thread = Item::selectFirstThreadForUser($params['uid'] ,['ignored'], ['iid' => $parent_id]);
-               if (DBA::isResult($thread) && $thread["ignored"]) {
-                       logger("Thread ".$parent_id." will be ignored", LOGGER_DEBUG);
-                       return;
+       if ($params['type'] == NOTIFY_COMMENT || $params['type'] == NOTIFY_TAGSELF) {
+               $thread = Item::selectFirstThreadForUser($params['uid'], ['ignored'], ['iid' => $parent_id, 'deleted' => false]);
+               if (DBA::isResult($thread) && $thread['ignored']) {
+                       Logger::log('Thread ' . $parent_id . ' will be ignored', Logger::DEBUG);
+                       L10n::popLang();
+                       return false;
                }
 
                // Check to see if there was already a tag notify or comment notify for this post.
@@ -143,59 +157,105 @@ function notification($params)
                        'link' => $params['link'], 'uid' => $params['uid']];
                if (DBA::exists('notify', $condition)) {
                        L10n::popLang();
-                       return;
+                       return false;
                }
 
                // if it's a post figure out who's post it is.
-
                $item = null;
-
                if ($params['otype'] === 'item' && $parent_id) {
-                       $item = Item::selectFirstForUser($params['uid'], Item::ITEM_FIELDLIST, ['id' => $parent_id]);
+                       $item = Item::selectFirstForUser($params['uid'], Item::ITEM_FIELDLIST, ['id' => $parent_id, 'deleted' => false]);
                }
 
-               $item_post_type = item_post_type($item);
+               $item_post_type = Item::postType($item);
                $itemlink = $item['plink'];
 
                // "a post"
-               $dest_str = L10n::t('%1$s commented on [url=%2$s]a %3$s[/url]',
-                       '[url='.$params['source_link'].']'.$params['source_name'].'[/url]',
-                       $itemlink,
-                       $item_post_type
-               );
-
-               // "George Bull's post"
-               if ($item) {
-                       $dest_str = L10n::t('%1$s commented on [url=%2$s]%3$s\'s %4$s[/url]',
-                               '[url='.$params['source_link'].']'.$params['source_name'].'[/url]',
+               if ($params['type'] == NOTIFY_TAGSELF) {
+                       $dest_str = L10n::t('%1$s tagged you on [url=%2$s]a %3$s[/url]',
+                               '[url=' . $params['source_link'] . ']' . $params['source_name'] . '[/url]',
                                $itemlink,
-                               $item['author-name'],
                                $item_post_type
                        );
+               } else {
+                       $dest_str = L10n::t('%1$s commented on [url=%2$s]a %3$s[/url]',
+                               '[url=' . $params['source_link'] . ']' . $params['source_name'] . '[/url]',
+                               $itemlink,
+                               $item_post_type
+                       );
+               }
+
+               // "George Bull's post"
+               if (DBA::isResult($item)) {
+                       if ($params['type'] == NOTIFY_TAGSELF) {
+                               $dest_str = L10n::t('%1$s tagged you on [url=%2$s]%3$s\'s %4$s[/url]',
+                                       '[url=' . $params['source_link'] . ']' . $params['source_name'] . '[/url]',
+                                       $itemlink,
+                                       $item['author-name'],
+                                       $item_post_type
+                               );
+                       } else {
+                               $dest_str = L10n::t('%1$s commented on [url=%2$s]%3$s\'s %4$s[/url]',
+                                       '[url=' . $params['source_link'] . ']' . $params['source_name'] . '[/url]',
+                                       $itemlink,
+                                       $item['author-name'],
+                                       $item_post_type
+                               );
+                       }
                }
 
                // "your post"
                if (DBA::isResult($item) && $item['owner-id'] == $item['author-id'] && $item['wall']) {
-                       $dest_str = L10n::t('%1$s commented on [url=%2$s]your %3$s[/url]',
-                               '[url='.$params['source_link'].']'.$params['source_name'].'[/url]',
-                               $itemlink,
-                               $item_post_type
-                       );
+                       if ($params['type'] == NOTIFY_TAGSELF) {
+                               $dest_str = L10n::t('%1$s tagged you on [url=%2$s]your %3$s[/url]',
+                                       '[url=' . $params['source_link'] . ']' . $params['source_name'] . '[/url]',
+                                       $itemlink,
+                                       $item_post_type
+                               );
+                       } else {
+                               $dest_str = L10n::t('%1$s commented on [url=%2$s]your %3$s[/url]',
+                                       '[url=' . $params['source_link'] . ']' . $params['source_name'] . '[/url]',
+                                       $itemlink,
+                                       $item_post_type
+                               );
+                       }
                }
 
-               // Some mail softwares relies on subject field for threading.
+               // "their post"
+               if (DBA::isResult($item) && $item['author-link'] == $params['source_link']) {
+                       if ($params['type'] == NOTIFY_TAGSELF) {
+                               $dest_str = L10n::t('%1$s tagged you on [url=%2$s]their %3$s[/url]',
+                                       '[url=' . $params['source_link'] . ']' . $params['source_name'] . '[/url]',
+                                       $itemlink,
+                                       $item_post_type
+                               );
+                       } else {
+                               $dest_str = L10n::t('%1$s commented on [url=%2$s]their %3$s[/url]',
+                                       '[url=' . $params['source_link'] . ']' . $params['source_name'] . '[/url]',
+                                       $itemlink,
+                                       $item_post_type
+                               );
+                       }
+               }
+
+               // Some mail software relies on subject field for threading.
                // So, we cannot have different subjects for notifications of the same thread.
                // Before this we have the name of the replier on the subject rendering
-               // differents subjects for messages on the same thread.
+               // different subjects for messages on the same thread.
+               if ($params['type'] == NOTIFY_TAGSELF) {
+                       $subject = L10n::t('[Friendica:Notify] %s tagged you', $params['source_name']);
 
-               $subject = L10n::t('[Friendica:Notify] Comment to conversation #%1$d by %2$s', $parent_id, $params['source_name']);
+                       $preamble = L10n::t('%1$s tagged you at %2$s', $params['source_name'], $sitename);
+               } else {
+                       $subject = L10n::t('[Friendica:Notify] Comment to conversation #%1$d by %2$s', $parent_id, $params['source_name']);
+
+                       $preamble = L10n::t('%s commented on an item/conversation you have been following.', $params['source_name']);
+               }
 
-               $preamble = L10n::t('%s commented on an item/conversation you have been following.', $params['source_name']);
                $epreamble = $dest_str;
 
                $sitelink = L10n::t('Please visit %s to view and/or reply to the conversation.');
                $tsitelink = sprintf($sitelink, $siteurl);
-               $hsitelink = sprintf($sitelink, '<a href="'.$siteurl.'">'.$sitename.'</a>');
+               $hsitelink = sprintf($sitelink, '<a href="' . $siteurl . '">' . $sitename . '</a>');
                $itemlink =  $params['link'];
        }
 
@@ -214,21 +274,6 @@ function notification($params)
                $itemlink =  $params['link'];
        }
 
-       if ($params['type'] == NOTIFY_TAGSELF) {
-               $subject = L10n::t('[Friendica:Notify] %s tagged you', $params['source_name']);
-
-               $preamble = L10n::t('%1$s tagged you at %2$s', $params['source_name'], $sitename);
-               $epreamble = L10n::t('%1$s [url=%2$s]tagged you[/url].',
-                       '[url='.$params['source_link'].']'.$params['source_name'].'[/url]',
-                       $params['link']
-               );
-
-               $sitelink = L10n::t('Please visit %s to view and/or reply to the conversation.');
-               $tsitelink = sprintf($sitelink, $siteurl);
-               $hsitelink = sprintf($sitelink, '<a href="'.$siteurl.'">'.$sitename.'</a>');
-               $itemlink =  $params['link'];
-       }
-
        if ($params['type'] == NOTIFY_SHARE) {
                $subject = L10n::t('[Friendica:Notify] %s shared a new post', $params['source_name']);
 
@@ -295,7 +340,7 @@ function notification($params)
                $hsitelink = sprintf($sitelink, '<a href="'.$siteurl.'">'.$sitename.'</a>');
 
                switch ($params['verb']) {
-                       case ACTIVITY_FRIEND:
+                       case Activity::FRIEND:
                                // someone started to share with user (mostly OStatus)
                                $subject = L10n::t('[Friendica:Notify] A new person is sharing with you');
 
@@ -305,7 +350,7 @@ function notification($params)
                                        $sitename
                                );
                                break;
-                       case ACTIVITY_FOLLOW:
+                       case Activity::FOLLOW:
                                // someone started to follow the user (mostly OStatus)
                                $subject = L10n::t('[Friendica:Notify] You have a new follower');
 
@@ -342,7 +387,7 @@ function notification($params)
        }
 
        if ($params['type'] == NOTIFY_CONFIRM) {
-               if ($params['verb'] == ACTIVITY_FRIEND) { // mutual connection
+               if ($params['verb'] == Activity::FRIEND) { // mutual connection
                        $itemlink =  $params['link'];
                        $subject = L10n::t('[Friendica:Notify] Connection accepted');
 
@@ -410,16 +455,21 @@ function notification($params)
                // It will be used by the system to send emails to users (like
                // password reset, invitations and so) using one look (but without
                // add a notification to the user, with could be inexistent)
-               $subject = $params['subject'];
+               if (!isset($params['subject'])) {
+                       Logger::warning('subject isn\'t set.', ['type' => $params['type']]);
+               }
+               $subject = $params['subject'] ?? '';
 
-               $preamble = $params['preamble'];
+               if (!isset($params['preamble'])) {
+                       Logger::warning('preamble isn\'t set.', ['type' => $params['type'], 'subject' => $subject]);
+               }
+               $preamble = $params['preamble'] ?? '';
 
-               $body =  $params['body'];
+               if (!isset($params['body'])) {
+                       Logger::warning('body isn\'t set.', ['type' => $params['type'], 'subject' => $subject, 'preamble' => $preamble]);
+               }
+               $body = $params['body'] ?? '';
 
-               $sitelink = "";
-               $tsitelink = "";
-               $hsitelink = "";
-               $itemlink =  "";
                $show_in_notification_page = false;
        }
 
@@ -437,7 +487,7 @@ function notification($params)
                'itemlink'  => $itemlink
        ];
 
-       Addon::callHooks('enotify', $h);
+       Hook::callAll('enotify', $h);
 
        $subject   = $h['subject'];
 
@@ -450,19 +500,13 @@ function notification($params)
        $hsitelink = $h['hsitelink'];
        $itemlink  = $h['itemlink'];
 
+       $notify_id = 0;
+
        if ($show_in_notification_page) {
-               logger("adding notification entry", LOGGER_DEBUG);
-               do {
-                       $dups = false;
-                       $hash = random_string();
-                       if (DBA::exists('notify', ['hash' => $hash])) {
-                               $dups = true;
-                       }
-               } while ($dups == true);
+               Logger::log("adding notification entry", Logger::DEBUG);
 
                /// @TODO One statement is enough
                $datarray = [];
-               $datarray['hash']  = $hash;
                $datarray['name']  = $params['source_name'];
                $datarray['name_cache'] = strip_tags(BBCode::convert($params['source_name']));
                $datarray['url']   = $params['source_link'];
@@ -477,15 +521,15 @@ function notification($params)
                $datarray['otype'] = $params['otype'];
                $datarray['abort'] = false;
 
-               Addon::callHooks('enotify_store', $datarray);
+               Hook::callAll('enotify_store', $datarray);
 
                if ($datarray['abort']) {
                        L10n::popLang();
-                       return False;
+                       return false;
                }
 
                // create notification entry in DB
-               $fields = ['hash' => $datarray['hash'], 'name' => $datarray['name'], 'url' => $datarray['url'],
+               $fields = ['name' => $datarray['name'], 'url' => $datarray['url'],
                        'photo' => $datarray['photo'], 'date' => $datarray['date'], 'uid' => $datarray['uid'],
                        'link' => $datarray['link'], 'iid' => $datarray['iid'], 'parent' => $datarray['parent'],
                        'type' => $datarray['type'], 'verb' => $datarray['verb'], 'otype' => $datarray['otype'],
@@ -494,28 +538,8 @@ function notification($params)
 
                $notify_id = DBA::lastInsertId();
 
-               // we seem to have a lot of duplicate comment notifications due to race conditions, mostly from forums
-               // After we've stored everything, look again to see if there are any duplicates and if so remove them
-               $p = q("SELECT `id` FROM `notify` WHERE `type` IN (%d, %d) AND `link` = '%s' AND `uid` = %d ORDER BY `id`",
-                       intval(NOTIFY_TAGSELF),
-                       intval(NOTIFY_COMMENT),
-                       DBA::escape($params['link']),
-                       intval($params['uid'])
-               );
-               if ($p && (count($p) > 1)) {
-                       for ($d = 1; $d < count($p); $d ++) {
-                               DBA::delete('notify', ['id' => $p[$d]['id']]);
-                       }
-
-                       // only continue on if we stored the first one
-                       if ($notify_id != $p[0]['id']) {
-                               L10n::popLang();
-                               return false;
-                       }
-               }
-
                $itemlink = System::baseUrl().'/notify/view/'.$notify_id;
-               $msg = replace_macros($epreamble, ['$itemlink' => $itemlink]);
+               $msg = Renderer::replaceMacros($epreamble, ['$itemlink' => $itemlink]);
                $msg_cache = format_notification_message($datarray['name_cache'], strip_tags(BBCode::convert($msg)));
 
                $fields = ['msg' => $msg, 'msg_cache' => $msg_cache];
@@ -528,14 +552,14 @@ function notification($params)
                || $params['type'] == NOTIFY_SYSTEM
                || $params['type'] == SYSTEM_EMAIL) {
 
-               logger('sending notification email');
+               Logger::log('sending notification email');
 
                if (isset($params['parent']) && (intval($params['parent']) != 0)) {
                        $id_for_parent = $params['parent']."@".$hostname;
 
                        // Is this the first email notification for this parent item and user?
                        if (!DBA::exists('notify-threads', ['master-parent-item' => $params['parent'], 'receiver-uid' => $params['uid']])) {
-                               logger("notify_id:".intval($notify_id).", parent: ".intval($params['parent'])."uid: ".intval($params['uid']), LOGGER_DEBUG);
+                               Logger::log("notify_id:".intval($notify_id).", parent: ".intval($params['parent'])."uid: ".intval($params['uid']), Logger::DEBUG);
 
                                $fields = ['notify-id' => $notify_id, 'master-parent-item' => $params['parent'],
                                        'receiver-uid' => $params['uid'], 'parent-item' => 0];
@@ -544,11 +568,11 @@ function notification($params)
                                $additional_mail_header .= "Message-ID: <${id_for_parent}>\n";
                                $log_msg = "include/enotify: No previous notification found for this parent:\n".
                                                "  parent: ${params['parent']}\n"."  uid   : ${params['uid']}\n";
-                               logger($log_msg, LOGGER_DEBUG);
+                               Logger::log($log_msg, Logger::DEBUG);
                        } else {
                                // If not, just "follow" the thread.
                                $additional_mail_header .= "References: <${id_for_parent}>\nIn-Reply-To: <${id_for_parent}>\n";
-                               logger("There's already a notification for this parent.", LOGGER_DEBUG);
+                               Logger::log("There's already a notification for this parent.", Logger::DEBUG);
                        }
                }
 
@@ -563,11 +587,11 @@ function notification($params)
                $datarray['siteurl'] = $siteurl;
                $datarray['type'] = $params['type'];
                $datarray['parent'] = $parent_id;
-               $datarray['source_name'] = defaults($params, 'source_name', '');
-               $datarray['source_link'] = defaults($params, 'source_link', '');
-               $datarray['source_photo'] = defaults($params, 'source_photo', '');
+               $datarray['source_name'] = $params['source_name'] ?? '';
+               $datarray['source_link'] = $params['source_link'] ?? '';
+               $datarray['source_photo'] = $params['source_photo'] ?? '';
                $datarray['uid'] = $params['uid'];
-               $datarray['username'] = defaults($params, 'to_name', '');
+               $datarray['username'] = $params['to_name'] ?? '';
                $datarray['hsitelink'] = $hsitelink;
                $datarray['tsitelink'] = $tsitelink;
                $datarray['hitemlink'] = '<a href="'.$itemlink.'">'.$itemlink.'</a>';
@@ -580,15 +604,15 @@ function notification($params)
                $datarray['subject'] = $subject;
                $datarray['headers'] = $additional_mail_header;
 
-               Addon::callHooks('enotify_mail', $datarray);
+               Hook::callAll('enotify_mail', $datarray);
 
                // check whether sending post content in email notifications is allowed
                // always true for SYSTEM_EMAIL
                $content_allowed = ((!Config::get('system', 'enotify_no_content')) || ($params['type'] == SYSTEM_EMAIL));
 
                // load the template for private message notifications
-               $tpl = get_markup_template('email_notify_html.tpl');
-               $email_html_body = replace_macros($tpl, [
+               $tpl = Renderer::getMarkupTemplate('email_notify_html.tpl');
+               $email_html_body = Renderer::replaceMacros($tpl, [
                        '$banner'       => $datarray['banner'],
                        '$product'      => $datarray['product'],
                        '$preamble'     => str_replace("\n", "<br>\n", $datarray['preamble']),
@@ -608,8 +632,8 @@ function notification($params)
                ]);
 
                // load the template for private message notifications
-               $tpl = get_markup_template('email_notify_text.tpl');
-               $email_text_body = replace_macros($tpl, [
+               $tpl = Renderer::getMarkupTemplate('email_notify_text.tpl');
+               $email_text_body = Renderer::replaceMacros($tpl, [
                        '$banner'       => $datarray['banner'],
                        '$product'      => $datarray['product'],
                        '$preamble'     => $datarray['preamble'],
@@ -628,9 +652,9 @@ function notification($params)
                        '$content_allowed'      => $content_allowed,
                ]);
 
+               L10n::popLang();
                // use the Emailer class to send the message
-               return Emailer::send(
-                       [
+               return Emailer::send([
                        'uid' => $params['uid'],
                        'fromName' => $sender_name,
                        'fromEmail' => $sender_email,
@@ -639,10 +663,11 @@ function notification($params)
                        'messageSubject' => $datarray['subject'],
                        'htmlVersion' => $email_html_body,
                        'textVersion' => $email_text_body,
-                       'additionalMailHeader' => $datarray['headers']]
-               );
+                       'additionalMailHeader' => $datarray['headers']
+               ]);
        }
 
+       L10n::popLang();
        return false;
 }
 
@@ -650,6 +675,7 @@ function notification($params)
  * @brief Checks for users who should be notified
  *
  * @param int $itemid ID of the item for which the check should be done
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  */
 function check_user_notification($itemid) {
        // fetch all users in the thread
@@ -665,13 +691,15 @@ function check_user_notification($itemid) {
 /**
  * @brief Checks for item related notifications and sends them
  *
- * @param int $itemid ID of the item for which the check should be done
- * @param int $uid User ID
+ * @param int    $itemid      ID of the item for which the check should be done
+ * @param int    $uid         User ID
  * @param string $defaulttype (Optional) Forces a notification with this type.
+ * @return bool
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  */
 function check_item_notification($itemid, $uid, $defaulttype = "") {
        $notification_data = ["uid" => $uid, "profiles" => []];
-       Addon::callHooks('check_item_notification', $notification_data);
+       Hook::callAll('check_item_notification', $notification_data);
 
        $profiles = $notification_data["profiles"];
 
@@ -698,11 +726,11 @@ function check_item_notification($itemid, $uid, $defaulttype = "") {
                // Check for invalid profile urls. 13 should be the shortest possible profile length:
                // http://a.bc/d
                // Additionally check for invalid urls that would return the normalised value "http:"
-               if ((strlen($profile) >= 13) && (normalise_link($profile) != "http:")) {
+               if ((strlen($profile) >= 13) && (Strings::normaliseLink($profile) != "http:")) {
                        if (!in_array($profile, $profiles2))
                                $profiles2[] = $profile;
 
-                       $profile = normalise_link($profile);
+                       $profile = Strings::normaliseLink($profile);
                        if (!in_array($profile, $profiles2))
                                $profiles2[] = $profile;
 
@@ -729,10 +757,10 @@ function check_item_notification($itemid, $uid, $defaulttype = "") {
        $fields = ['id', 'mention', 'tag', 'parent', 'title', 'body',
                'author-link', 'author-name', 'author-avatar', 'author-id',
                'guid', 'parent-uri', 'uri', 'contact-id', 'network'];
-       $condition = ['id' => $itemid, 'gravity' => [GRAVITY_PARENT, GRAVITY_COMMENT]];
-       $item = Item::selectFirst($fields, $condition);
+       $condition = ['id' => $itemid, 'gravity' => [GRAVITY_PARENT, GRAVITY_COMMENT], 'deleted' => false];
+       $item = Item::selectFirstForUser($uid, $fields, $condition);
        if (!DBA::isResult($item) || in_array($item['author-id'], $contacts)) {
-               return;
+               return false;
        }
 
        // Generate the notification array
@@ -748,17 +776,18 @@ function check_item_notification($itemid, $uid, $defaulttype = "") {
 
        if ($item["parent-uri"] === $item["uri"]) {
                // Send a notification for every new post?
+               // Either the contact had posted something directly
                $send_notification = DBA::exists('contact', ['id' => $item['contact-id'], 'notify_new_posts' => true]);
 
+               // Or the contact is a mentioned forum
                if (!$send_notification) {
                        $tags = q("SELECT `url` FROM `term` WHERE `otype` = %d AND `oid` = %d AND `type` = %d AND `uid` = %d",
                                intval(TERM_OBJ_POST), intval($itemid), intval(TERM_MENTION), intval($uid));
 
                        if (DBA::isResult($tags)) {
                                foreach ($tags AS $tag) {
-                                       $condition = ['nurl' => normalise_link($tag["url"]), 'uid' => $uid, 'notify_new_posts' => true];
-                                       $r = DBA::exists('contact', $condition);
-                                       if ($r) {
+                                       $condition = ['nurl' => Strings::normaliseLink($tag["url"]), 'uid' => $uid, 'notify_new_posts' => true, 'contact-type' => Contact::TYPE_COMMUNITY];
+                                       if (DBA::exists('contact', $condition)) {
                                                $send_notification = true;
                                        }
                                }
@@ -767,7 +796,7 @@ function check_item_notification($itemid, $uid, $defaulttype = "") {
 
                if ($send_notification) {
                        $params["type"] = NOTIFY_SHARE;
-                       $params["verb"] = ACTIVITY_TAG;
+                       $params["verb"] = Activity::TAG;
                }
        }
 
@@ -781,24 +810,24 @@ function check_item_notification($itemid, $uid, $defaulttype = "") {
 
        if ($item["mention"] || $tagged || ($defaulttype == NOTIFY_TAGSELF)) {
                $params["type"] = NOTIFY_TAGSELF;
-               $params["verb"] = ACTIVITY_TAG;
+               $params["verb"] = Activity::TAG;
        }
 
        // Is it a post that the user had started?
        $fields = ['ignored', 'mention'];
-       $thread = Item::selectFirstThreadForUser($params['uid'], $fields, ['iid' => $item["parent"]]);
+       $thread = Item::selectFirstThreadForUser($params['uid'], $fields, ['iid' => $item["parent"], 'deleted' => false]);
 
        if ($thread['mention'] && !$thread['ignored'] && !isset($params["type"])) {
                $params["type"] = NOTIFY_COMMENT;
-               $params["verb"] = ACTIVITY_POST;
+               $params["verb"] = Activity::POST;
        }
 
        // And now we check for participation of one of our contacts in the thread
-       $condition = ['parent' => $item["parent"], 'author-id' => $contacts];
+       $condition = ['parent' => $item["parent"], 'author-id' => $contacts, 'deleted' => false];
 
        if (!$thread['ignored'] && !isset($params["type"]) && Item::exists($condition)) {
                $params["type"] = NOTIFY_COMMENT;
-               $params["verb"] = ACTIVITY_POST;
+               $params["verb"] = Activity::POST;
        }
 
        if (isset($params["type"])) {