C#

TCP Socket Connect through HTTP Proxy

See more Socket/SSL/TLS Examples

Demonstrates how to connect through an HTTP proxy server. C#

bool success = false;

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

Chilkat.Socket socket = new Chilkat.Socket();

//  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.
string hostname = "192.168.1.108";
bool ssl = false;
int maxWaitMillisec = 20000;
success = socket.Connect(hostname,5555,ssl,maxWaitMillisec);
if (success != true) {
    Debug.WriteLine(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:
string receivedMsg = socket.ReceiveString();
if (socket.LastMethodSuccess != true) {
    Debug.WriteLine(socket.LastErrorText);
    return;
}

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

Debug.WriteLine(receivedMsg);