/// <summary>
/// Login to Minecraft.net and store credentials
/// </summary>
public void Login()
{
if (VerifyNames)
{
var loginHandler = new Minecraft_Net_Interaction();
var credentials = loginHandler.Login(ClientName, ClientPassword);
if (credentials[0] == "") // -- Fall back to no auth.
{
RaiseError(this, "Failed to login to Minecraft.net! (Incorrect username or password)");
VerifyNames = false;
}
else
{
RaiseInfo(this, "Logged in to Minecraft.net successfully.");
RaiseDebug(this, string.Format("Token: {0}\nProfile: {1}", credentials[0], credentials[1]));
AccessToken = credentials[0];
SelectedProfile = credentials[1];
ClientToken = credentials[2];
ClientName = credentials[3];
}
}
else
{
AccessToken = "None";
SelectedProfile = "None";
}
}
/// <summary>
/// Uses a client's stored credentials to verify with Minecraft.net
/// </summary>
public bool VerifySession()
{
if (AccessToken == null || ClientToken == null)
{
RaiseError(this, "Credentials are not set!");
return(false);
}
var sessionVerifier = new Minecraft_Net_Interaction();
var response = sessionVerifier.SessionRefresh(AccessToken, ClientToken);
if (response[0] == "")
{
RaiseError(this, "Unable to Verify Session!");
return(false);
}
RaiseInfo(this, "Credentials verified and refreshed!");
AccessToken = response[0];
ClientToken = response[1];
SelectedProfile = "Potato";
return(true);
}
/// <summary>
/// Uses a client's stored credentials to verify with Minecraft.net
/// </summary>
/// <param name="accessToken">Stored Access Token</param>
/// <param name="clientToken">Stored Client Token</param>
public bool VerifySession(string accessToken, string clientToken)
{
AccessToken = accessToken;
ClientToken = clientToken;
var sessionVerifier = new Minecraft_Net_Interaction();
var response = sessionVerifier.SessionRefresh(AccessToken, ClientToken);
if (response[0] == "")
{
RaiseError(this, "Unable to Verify Session!");
return(false);
}
RaiseInfo(this, "Credentials verified and refreshed!");
AccessToken = response[0];
ClientToken = response[1];
return(true);
}
void handle()
{
// This packet is complicated, so I will comment the process.
// Let's get the data off the line first..
string serverID = sock.readString();
short keyLength = sock.readShort();
short verifyLength;
byte[] key;
byte[] token;
key = sock.readByteArray(keyLength);
verifyLength = sock.readShort();
token = sock.readByteArray(verifyLength);
//Here, we need some random bytes to use as a shared key with the server.
RandomNumberGenerator random = RandomNumberGenerator.Create();
random.GetBytes(myform.sharedkey);
// AsnKeyParser is a part of the cryptography.dll, which is simply a compiled version
// of SMProxy's Cryptography.cs, with the server side parts stripped out.
// You pass it the key data and ask it to parse, and it will
// Extract the server's public key, then parse that into RSA for us.
AsnKeyParser keyParser = new AsnKeyParser(key);
RSAParameters Dekey = keyParser.ParseRSAPublicKey();
// Now we create an encrypter, and encrypt the token sent to us by the server
// as well as our newly made shared key (Which can then only be decrypted with the server's private key)
// and we send it to the server.
RSACryptoServiceProvider cryptoService = new RSACryptoServiceProvider();
cryptoService.ImportParameters(Dekey);
byte[] EncryptedSecret = cryptoService.Encrypt(myform.sharedkey, false);
byte[] EncryptedVerfy = cryptoService.Encrypt(token, false);
// I pass this information back up (Unencrypted) to the main form.
// This allows me to have it ready for when I need this later.
myform.ServerID = serverID;
myform.token = token;
myform.PublicKey = key;
if (serverID != "-" && myform.onlineMode)
{
// Verify with Minecraft.net, if need be.
// At this point, the server requires a hash containing the server id,
// shared key, and original public key. So we make this, and then pass to Minecraft.net
List <byte> hashlist = new List <byte>();
hashlist.AddRange(System.Text.Encoding.ASCII.GetBytes(serverID));
hashlist.AddRange(myform.sharedkey);
hashlist.AddRange(key);
byte[] hashData = hashlist.ToArray();
string hash = JavaHexDigest(hashData);
myform.serverHash = hash;
Minecraft_Net_Interaction verify = new Minecraft_Net_Interaction();
if (!verify.VerifyName(myform.username, myform.sessionId, hash))
{
myform.puts("Failed to verify name with minecraft.net");
sock._stream.Close();
myform.sessionId = null;
return;
}
}
else
{
// Skip Verification, user is not online.
myform.puts("Skipping verification.");
}
// Sets up the socket for encryption, but does not enable it yet.
sock.InitEncryption(myform.sharedkey);
// Respond to server.
EncResponse Response = new EncResponse(sock, myform, EncryptedVerfy, EncryptedSecret, true);
}
