Fix implicit mentions in incoming ActivityPub posts
- Use thr-parent instead of parent-uri to retrieve implicit mentions to remove from body - Add potential implicit mentions to 'tags' array for storage in Processor::convertImplicitMentionsInTags() - Add usage of system.disable_implicit_mentions to disable implicit mention behavior
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@ -65,7 +65,7 @@ class Processor
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* @param array $implicit_mentions List of profile URLs to skip
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* @return string with tags
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*/
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private static function constructTagString($tags, $sensitive, array $implicit_mentions)
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private static function constructTagString(array $tags, $sensitive)
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{
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if (empty($tags)) {
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return '';
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@ -73,7 +73,7 @@ class Processor
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$tag_text = '';
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foreach ($tags as $tag) {
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if (in_array(defaults($tag, 'type', ''), ['Mention', 'Hashtag']) && !in_array($tag['href'], $implicit_mentions)) {
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if (in_array(defaults($tag, 'type', ''), ['Mention', 'Hashtag'])) {
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if (!empty($tag_text)) {
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$tag_text .= ',';
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}
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@ -129,7 +129,7 @@ class Processor
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*/
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public static function updateItem($activity)
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{
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$item = Item::selectFirst(['uri', 'parent-uri', 'gravity'], ['uri' => $activity['id']]);
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$item = Item::selectFirst(['uri', 'thr-parent', 'gravity'], ['uri' => $activity['id']]);
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if (!DBA::isResult($item)) {
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Logger::warning('Unknown item', ['uri' => $activity['id']]);
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return;
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@ -144,20 +144,20 @@ class Processor
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$content = self::replaceEmojis($content, $activity['emojis']);
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$content = self::convertMentions($content);
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$implicit_mentions = [];
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if (($item['parent-uri'] != $item['uri']) && ($item['gravity'] == GRAVITY_COMMENT)) {
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$parent = Item::selectFirst(['id', 'author-link', 'alias'], ['uri' => $item['parent-uri']]);
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if (($item['thr-parent'] != $item['uri']) && ($item['gravity'] == GRAVITY_COMMENT)) {
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$parent = Item::selectFirst(['id', 'author-link', 'alias'], ['uri' => $item['thr-parent']]);
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if (!DBA::isResult($parent)) {
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Logger::warning('Unknown parent item.', ['uri' => $item['parent-uri']]);
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Logger::warning('Unknown parent item.', ['uri' => $item['thr-parent']]);
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return;
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}
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$implicit_mentions = self::getImplicitMentionList($parent);
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$content = self::removeImplicitMentionsFromBody($content, $implicit_mentions);
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$potential_implicit_mentions = self::getImplicitMentionList($parent);
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$content = self::removeImplicitMentionsFromBody($content, $potential_implicit_mentions);
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$activity['tags'] = self::convertImplicitMentionsInTags($activity['tags'], $potential_implicit_mentions);
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}
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$item['body'] = $content;
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$item['tag'] = self::constructTagString($activity['tags'], $activity['sensitive'], $implicit_mentions);
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$item['tag'] = self::constructTagString($activity['tags'], $activity['sensitive']);
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Item::update($item, ['uri' => $activity['id']]);
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}
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@ -173,7 +173,7 @@ class Processor
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{
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$item = [];
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$item['verb'] = ACTIVITY_POST;
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$item['parent-uri'] = $activity['reply-to-id'];
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$item['thr-parent'] = $activity['reply-to-id'];
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if ($activity['reply-to-id'] == $activity['id']) {
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$item['gravity'] = GRAVITY_PARENT;
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@ -220,7 +220,7 @@ class Processor
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{
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$item = [];
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$item['verb'] = $verb;
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$item['parent-uri'] = $activity['object_id'];
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$item['thr-parent'] = $activity['object_id'];
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$item['gravity'] = GRAVITY_ACTIVITY;
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$item['object-type'] = ACTIVITY_OBJ_NOTE;
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@ -275,8 +275,8 @@ class Processor
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{
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/// @todo What to do with $activity['context']?
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if (($item['gravity'] != GRAVITY_PARENT) && !Item::exists(['uri' => $item['parent-uri']])) {
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Logger::log('Parent ' . $item['parent-uri'] . ' not found, message will be discarded.', Logger::DEBUG);
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if (($item['gravity'] != GRAVITY_PARENT) && !Item::exists(['uri' => $item['thr-parent']])) {
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Logger::log('Parent ' . $item['thr-parent'] . ' not found, message will be discarded.', Logger::DEBUG);
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return;
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}
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@ -299,21 +299,20 @@ class Processor
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$content = self::replaceEmojis($content, $activity['emojis']);
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$content = self::convertMentions($content);
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$implicit_mentions = [];
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if (($item['parent-uri'] != $item['uri']) && ($item['gravity'] == GRAVITY_COMMENT)) {
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if (($item['thr-parent'] != $item['uri']) && ($item['gravity'] == GRAVITY_COMMENT)) {
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$item_private = !in_array(0, $activity['item_receiver']);
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$parent = Item::selectFirst(['id', 'private', 'author-link', 'alias'], ['uri' => $item['parent-uri']]);
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$parent = Item::selectFirst(['id', 'private', 'author-link', 'alias'], ['uri' => $item['thr-parent']]);
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if (!DBA::isResult($parent)) {
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return;
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}
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if ($item_private && !$parent['private']) {
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Logger::log('Item ' . $item['uri'] . ' is private but the parent ' . $item['parent-uri'] . ' is not. So we drop it.');
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Logger::warning('Item is private but the parent is not. Dropping.', ['item-uri' => $item['uri'], 'thr-parent' => $item['thr-parent']]);
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return;
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}
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$implicit_mentions = self::getImplicitMentionList($parent);
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$content = self::removeImplicitMentionsFromBody($content, $implicit_mentions);
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$potential_implicit_mentions = self::getImplicitMentionList($parent);
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$content = self::removeImplicitMentionsFromBody($content, $potential_implicit_mentions);
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$activity['tags'] = self::convertImplicitMentionsInTags($activity['tags'], $potential_implicit_mentions);
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}
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$item['created'] = $activity['published'];
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@ -333,7 +332,7 @@ class Processor
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$item['coord'] = $item['latitude'] . ' ' . $item['longitude'];
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}
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$item['tag'] = self::constructTagString($activity['tags'], $activity['sensitive'], $implicit_mentions);
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$item['tag'] = self::constructTagString($activity['tags'], $activity['sensitive']);
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$item['app'] = $activity['generator'];
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$item['plink'] = defaults($activity, 'alternate-url', $item['uri']);
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@ -662,10 +661,18 @@ class Processor
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*/
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private static function getImplicitMentionList(array $parent)
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{
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$parent_terms = Term::tagArrayFromItemId($parent['id'], [TERM_MENTION]);
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if (Config::get('system', 'disable_implicit_mentions')) {
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return [];
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}
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$parent_terms = Term::tagArrayFromItemId($parent['id'], [Term::MENTION, Term::IMPLICIT_MENTION]);
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$parent_author = Contact::getDetailsByURL($parent['author-link'], 0);
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$implicit_mentions = [
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$parent['author-link']
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$parent_author['url'],
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$parent_author['nurl'],
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$parent_author['alias'],
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];
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if ($parent['alias']) {
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@ -688,10 +695,10 @@ class Processor
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* Strips from the body prepended implicit mentions
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*
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* @param string $body
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* @param array $implicit_mentions List of profile URLs
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* @param array $potential_mentions
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* @return string
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*/
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private static function removeImplicitMentionsFromBody($body, array $implicit_mentions)
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private static function removeImplicitMentionsFromBody($body, array $potential_mentions)
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{
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if (Config::get('system', 'disable_implicit_mentions')) {
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return $body;
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@ -701,7 +708,7 @@ class Processor
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// Extract one prepended mention at a time from the body
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while(preg_match('#^(@\[url=([^\]]+)].*?\[\/url]\s)(.*)#mis', $body, $matches)) {
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if (!in_array($matches[2], $implicit_mentions) ) {
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if (!in_array($matches[2], $potential_mentions) ) {
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$kept_mentions[] = $matches[1];
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}
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@ -713,4 +720,50 @@ class Processor
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return implode('', $kept_mentions);
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}
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private static function convertImplicitMentionsInTags($activity_tags, array $potential_mentions)
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{
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if (Config::get('system', 'disable_implicit_mentions')) {
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return $activity_tags;
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}
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foreach ($activity_tags as $index => $tag) {
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if (in_array($tag['href'], $potential_mentions)) {
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$activity_tags[$index]['name'] = preg_replace(
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'/' . preg_quote(Term::TAG_CHARACTER[Term::MENTION], '/') . '/',
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Term::TAG_CHARACTER[Term::IMPLICIT_MENTION],
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$activity_tags[$index]['name'],
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1
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);
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}
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}
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return $activity_tags;
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}
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public static function testImplicitMentions($item, $source)
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{
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$parent = Item::selectFirst(['id', 'guid', 'author-link', 'alias'], ['uri' => $item['thr-parent']]);
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$implicit_mentions = self::getImplicitMentionList($parent);
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var_dump($implicit_mentions);
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$object = json_decode($source, true)['object'];
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var_dump($object);
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$content = HTML::toBBCode($object['content']);
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$content = self::convertMentions($content);
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$activity = [
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'tags' => $object['tag'],
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'content' => $content
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];
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var_dump($activity);
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$activity['content'] = Processor::removeImplicitMentionsFromBody($activity['content'], $implicit_mentions);
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$activity['tags'] = Processor::convertImplicitMentionsInTags($activity['tags'], $implicit_mentions);
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return $activity;
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}
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}
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