(JavaScript) TCP Socket Connect through HTTP Proxy

Demonstrates how to connect through an HTTP proxy server.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

var socket = new CkSocket();

// To connect through an HTTP proxy, set the HttpProxyHostname
// and HttpProxyPort properties to the hostname (or IP address)
// and port of the HTTP proxy.  Typical port numbers used by
// HTTP proxy servers are 3128 and 8080.
socket.HttpProxyHostname = "www.my-http-proxy.com";
socket.HttpProxyPort = 3128;

// Important:  Your HTTP proxy server must allow non-HTTP
// traffic to pass.  Otherwise this does not work.

// Connect (via the HTTP proxy) to port 5555 of 192.168.1.108.
// hostname may be a domain name or IP address.
var hostname = "192.168.1.108";
var ssl = false;
var maxWaitMillisec = 20000;
success = socket.Connect(hostname,5555,ssl,maxWaitMillisec);
if (success !== true) {
    console.log(socket.LastErrorText);
    return;
}

// Set maximum timeouts for reading an writing (in millisec)
socket.MaxReadIdleMs = 10000;
socket.MaxSendIdleMs = 10000;

// The ficticious server (in this example) is going to send a "Hello World!" 
// message.  Read it:
var receivedMsg = socket.ReceiveString();
if (socket.LastMethodSuccess !== true) {
    console.log(socket.LastErrorText);
    return;
}

// Close the connection with the server
// Wait a max of 20 seconds (20000 millsec)
success = socket.Close(20000);

console.log(receivedMsg);