public static SaslMechanics GetSafest(this SaslMechanics mechanics)
{
return(Enum.GetValues(typeof(SaslMechanics))
.Cast <SaslMechanics>()
.OrderByDescending(x => x)
.FirstOrDefault(x => mechanics.HasFlag(x)));
}
public void GetFastestMechanic()
{
const SaslMechanics mechanics = SaslMechanics.Login | SaslMechanics.CramMd5 | SaslMechanics.Plain;
var fastest = mechanics.GetFastest();
Assert.IsTrue(fastest == SaslMechanics.Login);
}
public void GetSafestMechanic()
{
const SaslMechanics mechanics = SaslMechanics.Login | SaslMechanics.CramMd5 | SaslMechanics.Plain;
var safest = mechanics.GetSafest();
Assert.IsTrue(safest == SaslMechanics.CramMd5);
}
/// <summary>
/// Authenticates the client to the server using the best supported SASL mechanism.
/// </summary>
/// <param name = "username">The username, obviously.</param>
/// <param name = "password">The users password.</param>
/// <param name = "mechanic">The SASL mechanism to use. This param is optional and can be left blank (0x0000), if done so, the best fitting mechanism will be chosen automatically.</param>
/// <returns>Returns true on success, false otherwise.</returns>
public bool Authenticate(string username, string password, SaslMechanics mechanic = (SaslMechanics)0x0000)
{
var credentials = new NetworkCredential(username, password);
IsAuthenticated = Authenticate(credentials, mechanic);
return(IsAuthenticated);
}
public bool Authenticate(NetworkCredential credentials, SaslMechanics mechanic = (SaslMechanics)0x0000)
{
var authenticator = new SmtpAuthenticator(this);
if (mechanic != 0x0000)
{
IsAuthenticated = authenticator.Authenticate(credentials, mechanic);
return(IsAuthenticated);
}
IsAuthenticated = authenticator.CanAuthenticate ?
authenticator.Authenticate(credentials) :
InvokeManualSaslAuthenticationRequired(credentials, this);
return(IsAuthenticated);
}
public bool Authenticate(NetworkCredential credentials, SaslMechanics mechanic = (SaslMechanics) 0x0000)
{
Arguments.VerifyNotNull(credentials);
var authenticator = new Pop3Authenticator(this);
if (mechanic != 0x0000) {
IsAuthenticated = authenticator.Authenticate(credentials, mechanic);
return IsAuthenticated;
}
IsAuthenticated = authenticator.CanAuthenticate
? authenticator.Authenticate(credentials)
: InvokeManualSaslAuthenticationRequired(credentials, this);
return IsAuthenticated;
}
public bool Authenticate(NetworkCredential credentials, SaslMechanics mechanic = (SaslMechanics)0x0000)
{
var supported = mechanic == 0x0000 ? _client.ServerCapabilities.GetSupportedSaslMechanics() : mechanic;
var best = _client.IsSecure ? supported.GetFastest() : supported.GetSafest();
switch (best)
{
case SaslMechanics.Plain:
return(AuthenticatePlain(credentials));
case SaslMechanics.Login:
return(AuthenticateLogin(credentials));
case SaslMechanics.CramMd5:
return(AuthenticateCramMd5(credentials));
default:
return(false);
}
}
public SaslMechanics GetSupportedSaslMechanics()
{
SaslMechanics mechanics = 0x0000;
if (_items.ContainsKey("PLAIN"))
{
mechanics |= SaslMechanics.Plain;
}
if (_items.ContainsKey("LOGIN"))
{
mechanics |= SaslMechanics.Login;
}
if (_items.ContainsKey("CRAM-MD5"))
{
mechanics |= SaslMechanics.CramMd5;
}
//if (_items.ContainsKey("AUTH=DIGEST-MD5"))
//{
// mechanics |= SaslMechanics.DigestMd5;
//}
//if (_items.ContainsKey("AUTH=NTLM"))
//{
// mechanics |= SaslMechanics.Ntlm;
//}
//if (_items.ContainsKey("AUTH=GSSAPI"))
//{
// mechanics |= SaslMechanics.GssApi;
//}
// to be continued ...
return(mechanics);
}
public bool Authenticate(string username, string password, SaslMechanics mechanic = (SaslMechanics) 0x0000)
{
return Authenticate(new NetworkCredential(username, password));
}
public bool Authenticate(string username, string password, SaslMechanics mechanic = (SaslMechanics)0x0000)
{
return(Authenticate(new NetworkCredential(username, password)));
}
/// <summary>
/// Authenticates the client to the server using the best supported SASL mechanism.
/// </summary>
/// <param name = "username">The username, obviously.</param>
/// <param name = "password">The users password.</param>
/// <param name = "mechanic">The SASL mechanism to use. This param is optional and can be left blank (0x0000), if done so, the best fitting mechanism will be chosen automatically.</param>
/// <returns>Returns true on success, false otherwise.</returns>
public bool Authenticate(string username, string password, SaslMechanics mechanic = (SaslMechanics) 0x0000)
{
var credentials = new NetworkCredential(username, password);
IsAuthenticated = Authenticate(credentials, mechanic);
return IsAuthenticated;
}
public bool Authenticate(NetworkCredential credentials, SaslMechanics mechanic = (SaslMechanics) 0x0000)
{
var supported = mechanic == 0x0000 ? _client.ServerCapability.GetSupportedSaslMechanics() : mechanic;
var best = _client.IsSecure ? supported.GetFastest() : supported.GetSafest();
switch (best) {
case SaslMechanics.Login:
return AuthenticateLogin(credentials);
case SaslMechanics.Plain:
return AuthenticatePlain(credentials);
case SaslMechanics.CramMd5:
return AuthenticateCramMd5(credentials);
}
if (_client.ServerCapability.IsUserSupported) {
return AuthenticateUser(credentials);
}
return false;
}
