+ /**
+ * Get a list of subscribed tags by both the users and the tags that are defined by the admin
+ *
+ * @return array
+ */
+ public static function getSubscribedTags(): array
+ {
+ $systemTags = [];
+ $server_tags = DI::config()->get('system', 'relay_server_tags');
+
+ foreach (explode(',', mb_strtolower($server_tags)) as $tag) {
+ $systemTags[] = trim($tag, '# ');
+ }
+
+ if (DI::config()->get('system', 'relay_user_tags')) {
+ $userTags = Search::getUserTags();
+ } else {
+ $userTags = [];
+ }
+
+ return array_unique(array_merge($systemTags, $userTags));
+ }
+
+ /**
+ * Detect the language of a post and decide if the post should be accepted
+ *
+ * @param string $body
+ * @param int $uri_id
+ * @param int $author_id
+ * @param array $languages
+ * @return boolean
+ */
+ public static function isWantedLanguage(string $body, int $uri_id = 0, int $author_id = 0, array $languages = [])
+ {
+ $detected = [];
+ $quality = DI::config()->get('system', 'relay_language_quality');
+ foreach (Item::getLanguageArray($body, DI::config()->get('system', 'relay_languages'), $uri_id, $author_id) as $language => $reliability) {
+ if (($reliability >= $quality) && ($quality > 0)) {
+ $detected[] = $language;
+ }
+ }
+
+ if (empty($languages) && empty($detected) && (empty($body) || Smilies::isEmojiPost($body))) {
+ Logger::debug('Empty body or only emojis', ['body' => $body]);
+ return true;
+ }
+
+ if (!empty($languages) || !empty($detected)) {
+ $user_languages = User::getLanguages();
+
+ foreach ($detected as $language) {
+ if (in_array($language, $user_languages)) {
+ Logger::debug('Wanted language found in detected languages', ['language' => $language, 'detected' => $detected, 'userlang' => $user_languages, 'body' => $body]);
+ return true;
+ }
+ }
+ foreach ($languages as $language) {
+ if (in_array($language, $user_languages)) {
+ Logger::debug('Wanted language found in defined languages', ['language' => $language, 'languages' => $languages, 'detected' => $detected, 'userlang' => $user_languages, 'body' => $body]);
+ return true;
+ }
+ }
+ Logger::debug('No wanted language found', ['languages' => $languages, 'detected' => $detected, 'userlang' => $user_languages, 'body' => $body]);
+ return false;
+ } elseif (DI::config()->get('system', 'relay_deny_undetected_language')) {
+ Logger::info('Undetected language found', ['body' => $body]);
+ return false;
+ }
+
+ return true;
+ }
+