/// <exception cref="System.Exception"></exception>
public override bool Start(Session session)
{
base.Start(session);
byte[] password = session.password;
string dest = username + "@" + session.host;
if (session.port != 22)
{
dest += (":" + session.port);
}
try
{
while (true)
{
if (session.auth_failures >= session.max_auth_tries)
{
return(false);
}
if (password == null)
{
if (userinfo == null)
{
//throw new JSchException("USERAUTH fail");
return(false);
}
if (!userinfo.PromptPassword("Password for " + dest))
{
throw new JSchAuthCancelException("password");
}
//break;
string _password = userinfo.GetPassword();
if (_password == null)
{
throw new JSchAuthCancelException("password");
}
//break;
password = Util.Str2byte(_password);
}
byte[] _username = null;
_username = Util.Str2byte(username);
// send
// byte SSH_MSG_USERAUTH_REQUEST(50)
// string user name
// string service name ("ssh-connection")
// string "password"
// boolen FALSE
// string plaintext password (ISO-10646 UTF-8)
packet.Reset();
buf.PutByte(unchecked ((byte)SSH_MSG_USERAUTH_REQUEST));
buf.PutString(_username);
buf.PutString(Util.Str2byte("ssh-connection"));
buf.PutString(Util.Str2byte("password"));
buf.PutByte(unchecked ((byte)0));
buf.PutString(password);
session.Write(packet);
while (true)
{
buf = session.Read(buf);
int command = buf.GetCommand() & unchecked ((int)(0xff));
if (command == SSH_MSG_USERAUTH_SUCCESS)
{
return(true);
}
if (command == SSH_MSG_USERAUTH_BANNER)
{
buf.GetInt();
buf.GetByte();
buf.GetByte();
byte[] _message = buf.GetString();
byte[] lang = buf.GetString();
string message = Util.Byte2str(_message);
if (userinfo != null)
{
userinfo.ShowMessage(message);
}
goto loop_continue;
}
if (command == SSH_MSG_USERAUTH_PASSWD_CHANGEREQ)
{
buf.GetInt();
buf.GetByte();
buf.GetByte();
byte[] instruction = buf.GetString();
byte[] tag = buf.GetString();
if (userinfo == null || !(userinfo is UIKeyboardInteractive))
{
if (userinfo != null)
{
userinfo.ShowMessage("Password must be changed.");
}
return(false);
}
UIKeyboardInteractive kbi = (UIKeyboardInteractive)userinfo;
string[] response;
string name = "Password Change Required";
string[] prompt = new string[] { "New Password: "******"password");
}
byte[] newpassword = Util.Str2byte(response[0]);
// send
// byte SSH_MSG_USERAUTH_REQUEST(50)
// string user name
// string service name ("ssh-connection")
// string "password"
// boolen TRUE
// string plaintext old password (ISO-10646 UTF-8)
// string plaintext new password (ISO-10646 UTF-8)
packet.Reset();
buf.PutByte(unchecked ((byte)SSH_MSG_USERAUTH_REQUEST));
buf.PutString(_username);
buf.PutString(Util.Str2byte("ssh-connection"));
buf.PutString(Util.Str2byte("password"));
buf.PutByte(unchecked ((byte)1));
buf.PutString(password);
buf.PutString(newpassword);
Util.Bzero(newpassword);
response = null;
session.Write(packet);
goto loop_continue;
}
if (command == SSH_MSG_USERAUTH_FAILURE)
{
buf.GetInt();
buf.GetByte();
buf.GetByte();
byte[] foo = buf.GetString();
int partial_success = buf.GetByte();
//System.err.println(new String(foo)+
// " partial_success:"+(partial_success!=0));
if (partial_success != 0)
{
throw new JSchPartialAuthException(Util.Byte2str(foo));
}
session.auth_failures++;
break;
}
else
{
//System.err.println("USERAUTH fail ("+buf.getCommand()+")");
// throw new JSchException("USERAUTH fail ("+buf.getCommand()+")");
return(false);
}
loop_continue :;
}
loop_break :;
if (password != null)
{
Util.Bzero(password);
password = null;
}
}
}
finally
{
if (password != null)
{
Util.Bzero(password);
password = null;
}
}
}
/// <exception cref="System.Exception"></exception>
public override bool Start(Session session)
{
base.Start(session);
if (userinfo != null && !(userinfo is UIKeyboardInteractive))
{
return(false);
}
string dest = username + "@" + session.host;
if (session.port != 22)
{
dest += (":" + session.port);
}
byte[] password = session.password;
bool cancel = false;
byte[] _username = null;
_username = Util.Str2byte(username);
while (true)
{
// send
// byte SSH_MSG_USERAUTH_REQUEST(50)
// string user name (ISO-10646 UTF-8, as defined in [RFC-2279])
// string service name (US-ASCII) "ssh-userauth" ? "ssh-connection"
// string "keyboard-interactive" (US-ASCII)
// string language tag (as defined in [RFC-3066])
// string submethods (ISO-10646 UTF-8)
packet.Reset();
buf.PutByte(unchecked ((byte)SSH_MSG_USERAUTH_REQUEST));
buf.PutString(_username);
buf.PutString(Util.Str2byte("ssh-connection"));
//buf.putString("ssh-userauth".getBytes());
buf.PutString(Util.Str2byte("keyboard-interactive"));
buf.PutString(Util.empty);
buf.PutString(Util.empty);
session.Write(packet);
bool firsttime = true;
while (true)
{
buf = session.Read(buf);
int command = buf.GetCommand() & unchecked ((int)(0xff));
if (command == SSH_MSG_USERAUTH_SUCCESS)
{
return(true);
}
if (command == SSH_MSG_USERAUTH_BANNER)
{
buf.GetInt();
buf.GetByte();
buf.GetByte();
byte[] _message = buf.GetString();
byte[] lang = buf.GetString();
string message = Util.Byte2str(_message);
if (userinfo != null)
{
userinfo.ShowMessage(message);
}
goto loop_continue;
}
if (command == SSH_MSG_USERAUTH_FAILURE)
{
buf.GetInt();
buf.GetByte();
buf.GetByte();
byte[] foo = buf.GetString();
int partial_success = buf.GetByte();
// System.err.println(new String(foo)+
// " partial_success:"+(partial_success!=0));
if (partial_success != 0)
{
throw new JSchPartialAuthException(Util.Byte2str(foo));
}
if (firsttime)
{
return(false);
}
//throw new JSchException("USERAUTH KI is not supported");
//cancel=true; // ??
break;
}
if (command == SSH_MSG_USERAUTH_INFO_REQUEST)
{
firsttime = false;
buf.GetInt();
buf.GetByte();
buf.GetByte();
string name = Util.Byte2str(buf.GetString());
string instruction = Util.Byte2str(buf.GetString());
string languate_tag = Util.Byte2str(buf.GetString());
int num = buf.GetInt();
string[] prompt = new string[num];
bool[] echo = new bool[num];
for (int i = 0; i < num; i++)
{
prompt[i] = Util.Byte2str(buf.GetString());
echo[i] = (buf.GetByte() != 0);
}
byte[][] response = null;
if (password != null && prompt.Length == 1 && !echo[0] && prompt[0].ToLower().StartsWith
("password:"******"USERAUTH fail ("+command+")");
return(false);
loop_continue :;
}
loop_break :;
if (cancel)
{
throw new JSchAuthCancelException("keyboard-interactive");
}
}
}
