(PureBasic) Socket/SSL/TLS through SOCKS5 / SOCKS4 Proxy

Demonstrates how to use the Chilkat Socket/SSL/TLS component/library with a SOCKS5 or SOCKS4 proxy server.

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IncludeFile "CkSocket.pb"

Procedure ChilkatExample()

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

    socket.i = CkSocket::ckCreate()
    If socket.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; To use a SOCKS4 or SOCKS5 proxy, simply set the following
    ; properties prior to calling Connect.  The connection may be SSL/TLS or 
    ; non-secure - both will work with a SOCKS proxy.
    ; The SOCKS hostname may be a domain name or 
    ; IP address:
    CkSocket::setCkSocksHostname(socket, "www.mysocksproxyserver.com")
    CkSocket::setCkSocksPort(socket, 1080)
    CkSocket::setCkSocksUsername(socket, "myProxyLogin")
    CkSocket::setCkSocksPassword(socket, "myProxyPassword")
    ; Set the SOCKS version to 4 or 5 based on the version
    ; of the SOCKS proxy server:
    CkSocket::setCkSocksVersion(socket, 5)
    ; Note: SOCKS4 servers only support usernames without passwords.
    ; SOCKS5 servers support full login/password authentication.

    ; Connect to port 5555 of 192.168.1.108.
    ; hostname may be a domain name or IP address.
    hostname.s = "192.168.1.108"
    ssl.i = 0
    maxWaitMillisec.i = 20000
    success.i = CkSocket::ckConnect(socket,hostname,5555,ssl,maxWaitMillisec)
    If success <> 1
        Debug CkSocket::ckLastErrorText(socket)
        CkSocket::ckDispose(socket)
        ProcedureReturn
    EndIf

    ; Set maximum timeouts for reading an writing (in millisec)
    CkSocket::setCkMaxReadIdleMs(socket, 10000)
    CkSocket::setCkMaxSendIdleMs(socket, 10000)

    ; The server (in this example) is going to send a "Hello World!" 
    ; message.  Read it:
    receivedMsg.s = CkSocket::ckReceiveString(socket)
    If CkSocket::ckLastMethodSuccess(socket) <> 1
        Debug CkSocket::ckLastErrorText(socket)
        CkSocket::ckDispose(socket)
        ProcedureReturn
    EndIf

    ; Close the connection with the server
    ; Wait a max of 20 seconds (20000 millsec)
    success = CkSocket::ckClose(socket,20000)

    Debug receivedMsg


    CkSocket::ckDispose(socket)


    ProcedureReturn
EndProcedure