private bool AuthenticateCramMd5(NetworkCredential credentials)
{
var command = new ImapCommand("AUTHENTICATE CRAM-MD5");
var response = _client.SendAndReceive(command);
// don't trim the last plus !!
var base64 = response.CurrentLine.TrimStart(Characters.Plus).Trim();
var challenge = Base64Encoder.Decode(base64, Encoding.UTF8);
var username = credentials.UserName;
var password = credentials.Password;
var hash = CramMd5Hasher.ComputeHash(password, challenge);
var authentication = username + " " + hash;
var authCommand = new BlankImapCommand(Base64Encoder.Encode(authentication));
var reader = _client.SendAndReceive(authCommand);
while (!reader.IsCompleted)
{
reader = _client.Receive(false);
}
return(reader.IsOk);
}
private bool AuthenticatePlain(NetworkCredential credentials)
{
var capabilities = _client.ServerCapability;
var username = credentials.UserName;
var password = credentials.Password;
var auth = username + "\0" + username + "\0" + password;
var encodedAuth = Base64Encoder.Encode(auth);
if (capabilities.IsInitialClientResponseSupported)
{
var text = string.Format("AUTHENTICATE PLAIN {0}", encodedAuth);
var command = new ImapCommand(text);
return(_client.SendAndReceive(command).IsOk);
}
var authCommand = new ImapCommand("AUTHENTICATE PLAIN");
var response = _client.SendAndReceive(authCommand);
if (response.IsContinuation)
{
var command = new BlankImapCommand(encodedAuth);
_client.Send(command);
return(_client.Receive().IsOk);
}
return(false);
}
/// <summary>
/// Authenticates the client to the server using the XOAUTH mechanism.
/// </summary>
/// <param name = "key">The XOAUTH authetication key.</param>
/// <returns>Returns true on success, false otherwise.</returns>
public bool AuthenticateXOAuth(string key)
{
if (_client.ServerCapability.IsInitialClientResponseSupported)
{
var text = string.Format("AUTHENTICATE XOAUTH {0}", key);
var command = new ImapCommand(text);
return(_client.SendAndReceive(command).IsOk);
}
else
{
var text = string.Format("AUTHENTICATE XOAUTH");
var command = new ImapCommand(text);
var reader = _client.SendAndReceive(command);
if (reader.IsContinuation)
{
var auth = new BlankImapCommand(key);
return(_client.SendAndReceive(auth).IsOk);
}
return(false);
}
}
/// <summary>
/// Send the DONE command to the server on a seperate thread, which will release the IDLE lock.
/// </summary>
public void StopIdleAsync()
{
var command = new BlankImapCommand("DONE");
SendAsync(command);
}