/// <summary>
/// Authenticates the specified session.
/// </summary>
/// <param name="session">The session to be authenticated.</param>
/// <returns>true if authenticated; otherwise false.</returns>
/// <exception cref="ArgumentNullException"><paramref name="session"/> is null.</exception>
/// <exception cref="SshAuthenticationException">No suitable authentication method found to complete authentication.</exception>
public bool Authenticate(Session session)
{
var authenticated = AuthenticationResult.Failure;
if (session == null)
{
throw new ArgumentNullException("session");
}
session.RegisterMessage("SSH_MSG_USERAUTH_FAILURE");
session.RegisterMessage("SSH_MSG_USERAUTH_SUCCESS");
session.RegisterMessage("SSH_MSG_USERAUTH_BANNER");
session.UserAuthenticationBannerReceived += Session_UserAuthenticationBannerReceived;
// Try to authenticate against none
var noneAuthenticationMethod = new NoneAuthenticationMethod(this.Username);
authenticated = noneAuthenticationMethod.Authenticate(session);
var allowedAuthentications = noneAuthenticationMethod.AllowedAuthentications;
var triedAuthentications = new List <string>();
while (authenticated != AuthenticationResult.Success)
{
// Find first authentication method
var method = this.AuthenticationMethods.Where((a) => allowedAuthentications.Contains(a.Name) && !triedAuthentications.Contains(a.Name)).FirstOrDefault();
if (method == null)
{
throw new SshAuthenticationException("No suitable authentication method found to complete authentication.");
}
triedAuthentications.Add(method.Name);
authenticated = method.Authenticate(session);
if (authenticated == AuthenticationResult.PartialSuccess)
{
// If further authentication is required then continue to try another method
allowedAuthentications = method.AllowedAuthentications;
continue;
}
// If authentication was successful or failure, exit
break;
}
session.UserAuthenticationBannerReceived -= Session_UserAuthenticationBannerReceived;
session.UnRegisterMessage("SSH_MSG_USERAUTH_FAILURE");
session.UnRegisterMessage("SSH_MSG_USERAUTH_SUCCESS");
session.UnRegisterMessage("SSH_MSG_USERAUTH_BANNER");
this.IsAuthenticated = authenticated == AuthenticationResult.Success;
return(authenticated == AuthenticationResult.Success);
}
/// <summary>
/// Authenticates the specified session.
/// </summary>
/// <param name="session">The session to be authenticated.</param>
/// <exception cref="ArgumentNullException"><paramref name="session"/> is null.</exception>
/// <exception cref="SshAuthenticationException">No suitable authentication method found to complete authentication, or permission denied.</exception>
public void Authenticate(Session session)
{
if (session == null)
{
throw new ArgumentNullException("session");
}
session.RegisterMessage("SSH_MSG_USERAUTH_FAILURE");
session.RegisterMessage("SSH_MSG_USERAUTH_SUCCESS");
session.RegisterMessage("SSH_MSG_USERAUTH_BANNER");
session.UserAuthenticationBannerReceived += Session_UserAuthenticationBannerReceived;
try
{
// the exception to report an authentication failure with
SshAuthenticationException authenticationException = null;
// try to authenticate against none
var noneAuthenticationMethod = new NoneAuthenticationMethod(this.Username);
var authenticated = noneAuthenticationMethod.Authenticate(session);
if (authenticated != AuthenticationResult.Success)
{
var failedAuthenticationMethods = new List <AuthenticationMethod>();
if (TryAuthenticate(session, noneAuthenticationMethod.AllowedAuthentications.ToList(), failedAuthenticationMethods, ref authenticationException))
{
authenticated = AuthenticationResult.Success;
}
}
this.IsAuthenticated = authenticated == AuthenticationResult.Success;
if (!IsAuthenticated)
{
throw authenticationException;
}
}
finally
{
session.UserAuthenticationBannerReceived -= Session_UserAuthenticationBannerReceived;
session.UnRegisterMessage("SSH_MSG_USERAUTH_FAILURE");
session.UnRegisterMessage("SSH_MSG_USERAUTH_SUCCESS");
session.UnRegisterMessage("SSH_MSG_USERAUTH_BANNER");
}
}
/// <summary>
/// Authenticates the specified session.
/// </summary>
/// <param name="session">The session to be authenticated.</param>
/// <exception cref="ArgumentNullException"><paramref name="session"/> is null.</exception>
/// <exception cref="SshAuthenticationException">No suitable authentication method found to complete authentication, or permission denied.</exception>
public void Authenticate(Session session)
{
if (session == null)
throw new ArgumentNullException("session");
session.RegisterMessage("SSH_MSG_USERAUTH_FAILURE");
session.RegisterMessage("SSH_MSG_USERAUTH_SUCCESS");
session.RegisterMessage("SSH_MSG_USERAUTH_BANNER");
session.UserAuthenticationBannerReceived += Session_UserAuthenticationBannerReceived;
try
{
// the exception to report an authentication failure with
SshAuthenticationException authenticationException = null;
// try to authenticate against none
var noneAuthenticationMethod = new NoneAuthenticationMethod(this.Username);
var authenticated = noneAuthenticationMethod.Authenticate(session);
if (authenticated != AuthenticationResult.Success)
{
var failedAuthenticationMethods = new List<AuthenticationMethod>();
if (TryAuthenticate(session, noneAuthenticationMethod.AllowedAuthentications.ToList(), failedAuthenticationMethods, ref authenticationException))
{
authenticated = AuthenticationResult.Success;
}
}
this.IsAuthenticated = authenticated == AuthenticationResult.Success;
if (!IsAuthenticated)
throw authenticationException;
}
finally
{
session.UserAuthenticationBannerReceived -= Session_UserAuthenticationBannerReceived;
session.UnRegisterMessage("SSH_MSG_USERAUTH_FAILURE");
session.UnRegisterMessage("SSH_MSG_USERAUTH_SUCCESS");
session.UnRegisterMessage("SSH_MSG_USERAUTH_BANNER");
}
}
/// <summary>
/// Authenticates the specified session.
/// </summary>
/// <param name="session">The session to be authenticated.</param>
/// <returns>true if authenticated; otherwise false.</returns>
/// <exception cref="ArgumentNullException"><paramref name="session"/> is null.</exception>
/// <exception cref="SshAuthenticationException">No suitable authentication method found to complete authentication.</exception>
public bool Authenticate(Session session)
{
var authenticated = AuthenticationResult.Failure;
if (session == null)
throw new ArgumentNullException("session");
session.RegisterMessage("SSH_MSG_USERAUTH_FAILURE");
session.RegisterMessage("SSH_MSG_USERAUTH_SUCCESS");
session.RegisterMessage("SSH_MSG_USERAUTH_BANNER");
session.UserAuthenticationBannerReceived += Session_UserAuthenticationBannerReceived;
// Try to authenticate against none
var noneAuthenticationMethod = new NoneAuthenticationMethod(this.Username);
authenticated = noneAuthenticationMethod.Authenticate(session);
var allowedAuthentications = noneAuthenticationMethod.AllowedAuthentications;
var triedAuthentications = new List<string>();
while (authenticated != AuthenticationResult.Success)
{
// Find first authentication method
var method = this.AuthenticationMethods.Where((a) => allowedAuthentications.Contains(a.Name) && !triedAuthentications.Contains(a.Name)).FirstOrDefault();
if (method == null)
throw new SshAuthenticationException("No suitable authentication method found to complete authentication.");
triedAuthentications.Add(method.Name);
authenticated = method.Authenticate(session);
if (authenticated == AuthenticationResult.PartialSuccess)
{
// If further authentication is required then continue to try another method
allowedAuthentications = method.AllowedAuthentications;
continue;
}
// If authentication was successful or failure, exit
break;
}
session.UserAuthenticationBannerReceived -= Session_UserAuthenticationBannerReceived;
session.UnRegisterMessage("SSH_MSG_USERAUTH_FAILURE");
session.UnRegisterMessage("SSH_MSG_USERAUTH_SUCCESS");
session.UnRegisterMessage("SSH_MSG_USERAUTH_BANNER");
this.IsAuthenticated = authenticated == AuthenticationResult.Success;
return authenticated == AuthenticationResult.Success;
}