Using the code at http://www.jcraft.com/jsch/examples/StreamForwarding.java.html, I have tried to create code that uses JSch to connect to an SSH server, then use it to connect to a server in the Web and pass HTTP(s) requests to the server, basically using the SSH server as a proxy. Here is what I have:
//SSH server and credentials
String host = "00.000.000.00";
String user = "login";
String password = "password";
int port = 22;
//The host I want to send HTTP requests to - the remote host
String remoteHost = "test.com";
int remotePort = 80;
Properties config = new Properties();
config.put("StrictHostKeyChecking", "no");
try {
JSch jsch = new JSch();
Session session = jsch.getSession(user, host, port);
session.setPassword(password);
session.setConfig(config);
session.connect();
Channel channel = session.getStreamForwarder(remoteHost, remotePort);
//The GET request
String cmd = "GET /foo/foo HTTP/1.0\r\n\r\n";
InputStream in = channel.getInputStream();
OutputStream out = channel.getOutputStream();
channel.connect(10000);
byte[] bytes = cmd.getBytes();
InputStream is = new ByteArrayInputStream(cmd.getBytes("UTF-8"));
int numRead;
while ((numRead = is.read(bytes)) >= 0)
out.write(bytes, 0, numRead);
out.flush();
channel.disconnect();
session.disconnect();
System.out.println("Request supposed to have been sent");
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
for (String line; (line = reader.readLine()) != null;){
System.out.println(line);
}
} catch (java.io.IOException exc) {
System.out.println(exc.toString());
}
} catch (Exception e){
e.printStackTrace();
}
This all sounds fine in theory, but in reality it doesn't work. I think that I could probably implement local port forwarding to make it work, but I don't understand how. Could somebody please help me out?
