Fix URL clicking in chat.

api/src/main/java/com/alttd/chat/util/Utility.java

@@ -23,6 +23,7 @@ public class Utility {
 
     private static final List<String> EMPTY_LIST = new ArrayList<>();
     static final Pattern DEFAULT_URL_PATTERN = Pattern.compile("(?:(https?)://)?([-\\w_.]+\\.\\w{2,})(/\\S*)?");
+    static final Pattern URL_SCHEME_PATTERN = Pattern.compile("^[a-z][a-z0-9+\\-.]*:");
 
     private static MiniMessage miniMessage = null;
 
@@ -307,6 +308,9 @@ public class Utility {
             String url = matcher.group();
             String clickUrl = url;
             String urlFormat = Config.URLFORMAT;
+//            if (!URL_SCHEME_PATTERN.matcher(clickUrl).find()) {
+//                clickUrl = "http://" + clickUrl;
+//            }
             message = message.replace(url, urlFormat.replaceAll("<url>", url).replaceAll("<clickurl>", clickUrl));
         }
         return message;