public void connect(int connectTimeout)
{
if(_isConnected)
{
throw new JSchException("session is already connected");
}
io=new IO();
if(random==null)
{
try
{
random = (Random)System.Activator.CreateInstance(System.Type.GetType(getConfig("random")));
}
catch(Exception e)
{
System.Console.Error.WriteLine("connect: random "+e);
}
}
Packet.setRandom(random);
try
{
int i, j;
//int pad=0;
if(proxy==null)
{
proxy=jsch.getProxy(host);
if(proxy!=null)
{
lock(proxy)
{
proxy.close();
}
}
}
if(proxy==null)
{
Stream In;
Stream Out;
if(socket_factory==null)
{
socket=Util.createSocket(host, port, connectTimeout);
In=new NetworkStream(socket);
Out=new NetworkStream(socket);
}
else
{
socket=socket_factory.createSocket(host, port);
In=socket_factory.getInputStream(socket);
Out=socket_factory.getOutputStream(socket);
}
//if(timeout>0){ socket.setSoTimeout(timeout); }
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.NoDelay, true);
io.setInputStream(In);
io.setOutputStream(Out);
}
else
{
lock (proxy)
{
proxy.connect(socket_factory, host, port, connectTimeout);
io.setInputStream(proxy.getInputStream());
io.setOutputStream(proxy.getOutputStream());
socket=proxy.getSocket();
}
}
if (connectTimeout > 0 && socket != null)
{
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, connectTimeout);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, connectTimeout);
}
_isConnected=true;
while(true)
{
i=0;
j=0;
while(i<buf.buffer.Length)
{
j=io.getByte();
if(j<0)break;
buf.buffer[i]=(byte)j; i++;
if(j==10)break;
}
if(j<0)
{
throw new JSchException("connection is closed by foreign host");
}
if(buf.buffer[i-1]==10)
{ // 0x0a
i--;
if(buf.buffer[i-1]==13)
{ // 0x0d
i--;
}
}
if(i>4 && (i!=buf.buffer.Length) &&
(buf.buffer[0]!='S'||buf.buffer[1]!='S'||
buf.buffer[2]!='H'||buf.buffer[3]!='-'))
{
//System.err.println(Encoding.UTF8.GetString(buf.buffer, 0, i);
continue;
}
if(i==buf.buffer.Length ||
i<7 || // SSH-1.99 or SSH-2.0
(buf.buffer[4]=='1' && buf.buffer[6]!='9') // SSH-1.5
)
{
throw new JSchException("invalid server's version String");
}
break;
}
V_S = new byte[i]; System.Array.Copy(buf.buffer, 0, V_S, 0, i);
//System.Console.WriteLine("V_S: ("+i+") ["+Encoding.UTF8.GetString(V_S)+"]");
//io.put(V_C, 0, V_C.Length); io.put("\n".getBytes(), 0, 1);
{
// Some Cisco devices will miss to read '\n' if it is sent separately.
byte[] foo=new byte[V_C.Length+1];
System.Array.Copy(V_C, 0, foo, 0, V_C.Length);
foo[foo.Length-1]=(byte)'\n';
io.put(foo, 0, foo.Length);
}
buf=read(buf);
//System.Console.WriteLine("read: 20 ? "+buf.buffer[5]);
if(buf.buffer[5]!=SSH_MSG_KEXINIT)
{
throw new JSchException("invalid protocol: "+buf.buffer[5]);
}
KeyExchange kex=receive_kexinit(buf);
while(true)
{
buf=read(buf);
if(kex.getState()==buf.buffer[5])
{
bool result=kex.next(buf);
if(!result)
{
//System.Console.WriteLine("verify: "+result);
in_kex=false;
throw new JSchException("verify: "+result);
}
}
else
{
in_kex=false;
throw new JSchException("invalid protocol(kex): "+buf.buffer[5]);
}
if(kex.getState()==KeyExchange.STATE_END)
{
break;
}
}
try{ checkHost(host, kex); }
catch(JSchException ee)
{
in_kex=false;
throw ee;
}
send_newkeys();
// receive SSH_MSG_NEWKEYS(21)
buf=read(buf);
//System.Console.WriteLine("read: 21 ? "+buf.buffer[5]);
if(buf.buffer[5]==SSH_MSG_NEWKEYS)
{
receive_newkeys(buf, kex);
}
else
{
in_kex=false;
throw new JSchException("invalid protocol(newkyes): "+buf.buffer[5]);
}
bool auth=false;
bool auth_cancel=false;
UserAuthNone usn=new UserAuthNone(userinfo);
auth=usn.start(this);
String methods=null;
if(!auth)
{
methods=usn.getMethods();
if(methods!=null)
{
methods=methods.ToLower();
}
else
{
// methods: publickey,password,keyboard-interactive
methods="publickey,password,keyboard-interactive";
}
}
//loop:
while(true)
{
//System.Console.WriteLine("methods: "+methods);
while (!auth && methods != null && methods.Length > 0)
{
//System.Console.WriteLine(" methods: "+methods);
UserAuth us=null;
if (methods.StartsWith("publickey"))
{
//System.Console.WriteLine(" jsch.identities.size()="+jsch.identities.size());
lock(jsch.identities)
{
if(jsch.identities.Count>0)
{
us=new UserAuthPublicKey(userinfo);
}
}
}
else if (methods.StartsWith("keyboard-interactive"))
{
if(userinfo is UIKeyboardInteractive)
{
us=new UserAuthKeyboardInteractive(userinfo);
}
}
else if (methods.StartsWith("password"))
{
us=new UserAuthPassword(userinfo);
}
if(us!=null)
{
try
{
auth=us.start(this);
auth_cancel=false;
}
catch(JSchAuthCancelException)
{
//System.Console.WriteLine(ee);
auth_cancel=true;
}
catch(JSchPartialAuthException ee)
{
methods=ee.getMethods();
//System.Console.WriteLine("PartialAuth: "+methods);
auth_cancel=false;
continue;//loop;
}
catch(Exception ee)
{
System.Console.WriteLine("ee: "+ee); // SSH_MSG_DISCONNECT: 2 Too many authentication failures
}
}
if(!auth)
{
int comma=methods.IndexOf(",");
if(comma==-1) break;
methods=methods.Substring(comma+1);
}
}
break;
}
if (connectTimeout > 0 || timeout > 0)
{
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, timeout);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, timeout);
}
if(auth)
{
isAuthed=true;
connectThread = new System.Threading.Thread(this.run);
connectThread.Name = "Connect thread " + host + " session";
connectThread.Start();
return;
}
if(auth_cancel)
throw new JSchException("Auth cancel");
throw new JSchException("Auth fail");
}
catch(Exception e)
{
in_kex=false;
if(_isConnected)
{
try
{
packet.reset();
buf.WriteByte((byte)SSH_MSG_DISCONNECT);
buf.WriteInt(3);
buf.WriteString(e.ToString());
buf.WriteString("en");
write(packet);
disconnect();
}
catch(Exception)
{
}
}
_isConnected=false;
//e.printStackTrace();
//if(e is Exception) throw (Exception)e;
if(e is JSchException) throw (JSchException)e;
throw new JSchException("Session.connect: "+e);
}
}
public void connect(int connectTimeout)
{
if(random==null)
{
try
{
Type t=Type.GetType(getConfig("random"));
random=(Random)(Activator.CreateInstance(t));
}
catch(Exception e){ Console.Error.WriteLine("connect: random "+e); }
}
Packet.setRandom(random);
try
{
int i, j;
//int pad=0;
if(proxy==null)
{
proxy=jsch.getProxy(host);
if(proxy!=null)
{
lock(proxy)
{
proxy.close();
}
}
}
IPEndPoint ipe=null;
if(proxy==null)
{
Stream ins;
Stream outs;
if(socket_factory==null)
{
if(connectTimeout==0)
{
ipe = new IPEndPoint(Dns.GetHostByName(host).AddressList[0], port);
socket=new Socket(ipe.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
}
// String message="";
// Thread tmp=new Thread(new Runnable(){
// public void run(){
// try{
// sockp[0]=new Socket(host, port);
// if(done[0]){
// if(sockp[0]!=null){
// sockp[0].close();
// sockp[0]=null;
// }
// }
// else thread.interrupt();
// }
// catch(Exception e){
// ee[0]=e;
// thread.interrupt();
// if(sockp[0]!=null){
// try{
// sockp[0].close();
// sockp[0]=null;
// }catch(Exception eee){}
// }
// }
// }
// });
// tmp.start();
// try{
// Thread.sleep(connectTimeout);
// message="timeout: ";
// }
// catch(java.lang.InterruptedException eee){
// tmp.interrupt();
// tmp=null;
// System.gc();
// }
// done[0]=true;
// if(sockp[0]!=null){
// socket=sockp[0];
// }
// else{
// message+="socket is not established";
// if(ee[0]!=null){
// message=ee[0].toString();
// }
// throw new JSchException(message);
// }
// }
socket.Connect(ipe);
NetworkStream ns = new NetworkStream( socket );
ins=ns;
outs=ns;
}
else
{
socket=socket_factory.createSocket(host, port);
ins=socket_factory.getInputStream(socket);
outs=socket_factory.getOutputStream(socket);
}
if(timeout>0)
{
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, timeout);
}
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.NoDelay, 1);
io.setInputStream(ins);
io.setOutputStream(outs);
}
else
{
lock(proxy)
{
proxy.connect(this, host, port);
io.setInputStream(proxy.getInputStream());
io.setOutputStream(proxy.getOutputStream());
}
}
isConnected=true;
i=0;
while(i<buf.buffer.Length)
{
j=io.getByte();
buf.buffer[i]=(byte)j; i++;
if(j==10)break;
}
if(buf.buffer[i-1]==10)
{ // 0x0a
i--;
if(buf.buffer[i-1]==13)
{ // 0x0d
i--;
}
}
if(i==buf.buffer.Length ||
i<7 || // SSH-1.99 or SSH-2.0
(buf.buffer[4]=='1' && buf.buffer[6]!='9') // SSH-1.5
)
{
throw new JSchException("invalid server's version string");
}
V_S=new byte[i]; Array.Copy(buf.buffer, 0, V_S, 0, i);
//Console.WritLine("V_S: ("+i+") ["+new String(V_S)+"]");
//io.put(V_C, 0, V_C.length); io.put("\n".getBytes(), 0, 1);
{
// Some Cisco devices will miss to read '\n' if it is sent separately.
byte[] foo=new byte[V_C.Length+1];
Array.Copy(V_C, 0, foo, 0, V_C.Length);
foo[foo.Length-1]=(byte)'\n';
io.put(foo, 0, foo.Length);
}
buf=read(buf);
//Console.WritLine("read: 20 ? "+buf.buffer[5]);
if(buf.buffer[5]!=SSH_MSG_KEXINIT)
{
throw new JSchException("invalid protocol: "+buf.buffer[5]);
}
KeyExchange kex=receive_kexinit(buf);
bool result;
while(true)
{
buf=read(buf);
if(kex.getState()==buf.buffer[5])
{
result=kex.next(buf);
if(!result)
{
//Console.WritLine("verify: "+result);
throw new JSchException("verify: "+result);
}
}
else
{
throw new JSchException("invalid protocol(kex): "+buf.buffer[5]);
}
if(kex.getState()==KeyExchange.STATE_END)
{
break;
}
}
checkHost(host, kex);
send_newkeys();
// receive SSH_MSG_NEWKEYS(21)
buf=read(buf);
//Console.WritLine("read: 21 ? "+buf.buffer[5]);
if(buf.buffer[5]==SSH_MSG_NEWKEYS)
{
receive_newkeys(buf, kex);
}
else
{
throw new JSchException("invalid protocol(newkyes): "+buf.buffer[5]);
}
bool auth=false;
bool auth_cancel=false;
UserAuthNone usn=new UserAuthNone(userinfo);
auth=usn.start(this);
String methods=usn.getMethods();
// methods: publickey,password,keyboard-interactive
if(methods==null)
{
methods="publickey,password,keyboard-interactive";
}
//loop:
while(true)
{
//Console.WritLine("methods: "+methods);
while(!auth &&
methods!=null && methods.Length>0)
{
//Console.WritLine(" methods: "+methods);
UserAuth us=null;
if(methods.StartsWith("publickey"))
{
//Console.WritLine(" jsch.identities.size()="+jsch.identities.size());
lock(jsch.identities)
{
if(jsch.identities.Count>0)
{
us=new UserAuthPublicKey(userinfo);
}
}
}
else if(methods.StartsWith("keyboard-interactive"))
{
if(userinfo is UIKeyboardInteractive)
{
us=new UserAuthKeyboardInteractive(userinfo);
}
}
else if(methods.StartsWith("password"))
{
us=new UserAuthPassword(userinfo);
}
if(us!=null)
{
try
{
auth=us.start(this);
auth_cancel=false;
}
catch(JSchAuthCancelException ee)
{
Console.WriteLine(ee);
auth_cancel=true;
}
catch(JSchPartialAuthException ee)
{
methods=ee.getMethods();
//Console.WritLine("PartialAuth: "+methods);
auth_cancel=false;
continue /*loop*/;
}
catch(Exception ee)
{
throw ee;
}
}
if(!auth)
{
int comma=methods.IndexOf(",");
if(comma==-1) break;
methods=methods.Substring(comma+1);
}
}
break;
}
if(auth)
{
connectThread=new System.Threading.Thread(new System.Threading.ThreadStart(run));
connectThread.Start();
return;
}
if(auth_cancel)
throw new JSchException("Auth cancel");
throw new JSchException("Auth fail");
}
catch(Exception e)
{
if(isConnected)
{
try
{
packet.reset();
buf.putByte((byte)SSH_MSG_DISCONNECT);
buf.putInt(3);
buf.putString(Util.getBytes(e.ToString()));
buf.putString(Util.getBytes( "en" ));
write(packet);
disconnect();
}
catch
{
}
}
isConnected=false;
//e.printStackTrace();
//if(e is JSchException) throw (JSchException)e;
//throw new JSchException("Session.connect: "+e);
throw e;
}
}
