(VBScript) TCP Socket Connect through HTTP Proxy

Demonstrates how to connect through an HTTP proxy server.

Download Chilkat Socket ActiveX

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
Set outFile = fso.CreateTextFile("output.txt", True)

set socket = CreateObject("Chilkat.Socket")

success = socket.UnlockComponent("Anything for 30-day trial")
If (success <> 1) Then
    outFile.WriteLine(socket.LastErrorText)
    WScript.Quit
End If

'  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.
hostname = "192.168.1.108"
ssl = 0
maxWaitMillisec = 20000
success = socket.Connect(hostname,5555,ssl,maxWaitMillisec)
If (success <> 1) Then
    outFile.WriteLine(socket.LastErrorText)
    WScript.Quit
End If

'  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:

receivedMsg = socket.ReceiveString()
If (receivedMsg = vbNullString ) Then
    outFile.WriteLine(socket.LastErrorText)
    WScript.Quit
End If

'  Close the connection with the server
'  Wait a max of 20 seconds (20000 millsec)
socket.Close 20000

MsgBox receivedMsg
outFile.Close