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.

Download Chilkat Socket ActiveX

CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @socket int
    EXEC @hr = sp_OACreate 'Chilkat.Socket', @socket OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int

    EXEC sp_OAMethod @socket, 'UnlockComponent', @success OUT, 'Anything for 30-day trial'
    IF @success <> 1
      BEGIN
        PRINT 'Failed to unlock component'
        RETURN
      END

    --  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:
    EXEC sp_OASetProperty @socket, 'SocksHostname', 'www.mysocksproxyserver.com'
    EXEC sp_OASetProperty @socket, 'SocksPort', 1080
    EXEC sp_OASetProperty @socket, 'SocksUsername', 'myProxyLogin'
    EXEC sp_OASetProperty @socket, 'SocksPassword', 'myProxyPassword'
    --  Set the SOCKS version to 4 or 5 based on the version
    --  of the SOCKS proxy server:
    EXEC sp_OASetProperty @socket, 'SocksVersion', 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.
    DECLARE @hostname nvarchar(4000)

    SELECT @hostname = '192.168.1.108'
    DECLARE @ssl int

    SELECT @ssl = 0
    DECLARE @maxWaitMillisec int

    SELECT @maxWaitMillisec = 20000
    EXEC sp_OAMethod @socket, 'Connect', @success OUT, @hostname, 5555, @ssl, @maxWaitMillisec
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @socket, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        RETURN
      END

    --  Set maximum timeouts for reading an writing (in millisec)
    EXEC sp_OASetProperty @socket, 'MaxReadIdleMs', 10000
    EXEC sp_OASetProperty @socket, 'MaxSendIdleMs', 10000

    --  The server (in this example) is going to send a "Hello World!"
    --  message.  Read it:
    DECLARE @receivedMsg nvarchar(4000)

    EXEC sp_OAMethod @socket, 'ReceiveString', @receivedMsg OUT
    IF @receivedMsg Is NULL 
      BEGIN
        EXEC sp_OAGetProperty @socket, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        RETURN
      END

    --  Close the connection with the server
    --  Wait a max of 20 seconds (20000 millsec)
    EXEC sp_OAMethod @socket, 'Close', NULL, 20000

    PRINT @receivedMsg
END
GO