Don't probe non existing local contacts

src/Network/Probe.php

@@ -2201,20 +2201,9 @@ class Probe
 	 */
 	private static function localProbe(string $url)
 	{
-		$uid = User::getIdForURL($url);
+		if ($uid = User::getIdForURL($url)) {
-		if (empty($uid)) {
-			return [];
-		}
-
 			$profile   = User::getOwnerDataById($uid);
-		if (empty($profile)) {
-			return [];
-		}
-
 			$approfile = ActivityPub\Transmitter::getProfile($uid);
-		if (empty($approfile)) {
-			return [];
-		}
 
 			if (empty($profile['gsid'])) {
 				$profile['gsid'] = GServer::getID($approfile['generator']['url']);
@@ -2234,6 +2223,11 @@ class Probe
 				'sharedinbox' => $approfile['endpoints']['sharedInbox'], 'network' => Protocol::DFRN, 
 				'pubkey' => $profile['upubkey'], 'baseurl' => $approfile['generator']['url'], 'gsid' => $profile['gsid'],
 				'manually-approve' => in_array($profile['page-flags'], [User::PAGE_FLAGS_NORMAL, User::PAGE_FLAGS_PRVGROUP])];
+		} else {
+			// Default values for non existing targets
+			$data = ['name' => $url, 'nick' => $url, 'url' => $url, 'network' => Protocol::PHANTOM,
+				'photo' => DI::baseUrl() . Contact::DEFAULT_AVATAR_PHOTO];
+		}
 		return self::rearrangeData($data);		
 	}
 }