Some people have asked me to tell them how to get the salt out of MCLawl so that they can generate some DirectConnect URLs.

The short answer is that it's not possible,

The long answer is that it is possible, but you need to recompile the software.

If you download the source package from: http://sourceforge.net/projects/mclawl/files/MCLawlSource.rar

In MCLawl/Properties.cs, find the lines that look like:

                        switch (key.ToLower())
                        {
                            case "server-name":
                                if (ValidString(value, "![]:.,{}~-+()?_/\\ "))
                                {
                                    Server.name = value;
                                }  
                                else { Server.s.Log("server-name invalid! setting to default."); }
                                break;

After these lines, add the following:

                            case "salt":
                                Server.salt = value;
                                break;

Then recompile (you'll need a CSharp compiler of some variety. Probably easiest to download Visual C# Express from Microsoft, since it's free) and then edit your properties/server.properties file, and add a line like:


salt = 8fa145a0680ad2932260e142d1b5ed9c


Once you have this in, your server will always use this salt to validate the mppass supplied to it, instead of using a random salt, and you can create a script to generate direct connect URLs.

Here's an example script, written in PHP, but you could easily use any language to do the same things:

<?php
// Change these to the correct values for your server:
  $host = '123.234.132.21';
  $port = 25535;
  $user = 'aUserName';

// This is the salt we put into server.properties:

  $salt = '8fa145a0680ad2932260e142d1b5ed9c';

// Print out the direct connect URL:

  printf("mc://%s:%d/%s/%s\n", $host, $port, $user, md5($user . $salt));

?>