New function to replace mentions with nicknames

src/Content/Text/BBCode.php

@@ -1263,6 +1263,39 @@ class BBCode
 		return $bbcode;
 	}
 
+	/**
+	 * Replace names in mentions with nicknames
+	 *
+	 * @param string $body
+	 * @return string Body with replaced mentions
+	 */
+	public static function setMentionsToNicknames(string $body):string
+	{
+		$regexp = "/([@!])\[url\=([^\[\]]*)\].*?\[\/url\]/ism";
+		return preg_replace_callback($regexp, ['self', 'mentionCallback'], $body);
+	}
+
+	/**
+	 * Callback function to replace a Friendica style mention in a mention with the nickname
+	 *
+	 * @param array $match Matching values for the callback
+	 * @return string Replaced mention
+	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+	 */
+	private static function mentionCallback($match)
+	{
+		if (empty($match[2])) {
+			return '';
+		}
+
+		$data = Contact::getByURL($match[2], false, ['url', 'nick']);
+		if (empty($data['nick'])) {
+			return $match[0];
+		}
+
+		return $match[1] . '[url=' . $data['url'] . ']' . $data['nick'] . '[/url]';
+	}
+
 	/**
 	 * Converts a BBCode message for a given URI-ID to a HTML message
 	 *

src/Object/Api/Mastodon/Status.php

@@ -131,7 +131,7 @@ class Status extends BaseDataTransferObject
 		$this->muted = $userAttributes->muted;
 		$this->bookmarked = $userAttributes->bookmarked;
 		$this->pinned = $userAttributes->pinned;
-		$this->content = BBCode::convertForUriId($item['uri-id'], ($item['raw-body'] ?? $item['body']), BBCode::API);
+		$this->content = BBCode::convertForUriId($item['uri-id'], BBCode::setMentionsToNicknames($item['raw-body'] ?? $item['body']), BBCode::API);
 		$this->reblog = $reblog;
 		$this->application = $application->toArray();
 		$this->account = $account->toArray();

src/Protocol/ActivityPub/Transmitter.php

@@ -1343,27 +1343,6 @@ class Transmitter
 		return $attachments;
 	}
 
-	/**
-	 * Callback function to replace a Friendica style mention in a mention that is used on AP
-	 *
-	 * @param array $match Matching values for the callback
-	 * @return string Replaced mention
-	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
-	 */
-	private static function mentionCallback($match)
-	{
-		if (empty($match[1])) {
-			return '';
-		}
-
-		$data = Contact::getByURL($match[1], false, ['url', 'nick']);
-		if (empty($data['nick'])) {
-			return $match[0];
-		}
-
-		return '@[url=' . $data['url'] . ']' . $data['nick'] . '[/url]';
-	}
-
 	/**
 	 * Callback function to replace a Friendica style mention in a mention for a summary
 	 *
@@ -1568,8 +1547,7 @@ class Transmitter
 		if ($type == 'Event') {
 			$data = array_merge($data, self::createEvent($item));
 		} else {
-			$regexp = "/[@!]\[url\=([^\[\]]*)\].*?\[\/url\]/ism";
+			$body = BBCode::setMentionsToNicknames($body);
-			$body = preg_replace_callback($regexp, ['self', 'mentionCallback'], $body);
 
 			$data['content'] = BBCode::convertForUriId($item['uri-id'], $body, BBCode::ACTIVITYPUB);
 		}
@@ -1579,8 +1557,7 @@ class Transmitter
 		// The contentMap does contain the unmodified HTML.
 		$language = self::getLanguage($item);
 		if (!empty($language)) {
-			$regexp = "/[@!]\[url\=([^\[\]]*)\].*?\[\/url\]/ism";
+			$richbody = BBCode::setMentionsToNicknames($item['body']);
-			$richbody = preg_replace_callback($regexp, ['self', 'mentionCallback'], $item['body']);
 			$richbody = BBCode::removeAttachment($richbody);
 
 			$data['contentMap'][$language] = BBCode::convertForUriId($item['uri-id'], $richbody, BBCode::EXTERNAL);