FiveTech Support Forums

Some tried to send a mail (cd0) into a proxy ?
Emg send me this info https://support.microsoft.com/it-it/kb/310233
Some on ecan help me to implement a function to run with proxy on fwh
thanks

From: "Jeff Davis" <jeff@crednet.com>
Subject: Re: Proxy Client in Fivewin
Date: Monday, November 26, 2001 10:49 AM

I found the solution to my problem.

If you are using TSOCKET to connect to a Port that is not allowed out of the firewall all you have to do is connect to a Proxy server IP with a PORT that is allowed (80 or 8080) and then in the Connect event do the following

nHostPort = 5950
cHostIP = "10.10.10.1"
nProxyPort = 8080
cProxyAddress = "202.89.128.85"

oSocket := CNCSocket():New(nProxyPort)
oSocket:bConnect := { | oSocket | OnConnect(oSocket,oGet)}
oSocket:cDestAddr := cProxyAddress
oSocket:connect()

Function OnConnect(oSocket)
oSocket:SendData("CONNECT "+cHostIP+":"+ltrim(str(nHostPort)+"
HTTP/1.1"+CRLF+ CRLF)
return nil


The proxy server will create a "HTTP tunnel" to cHostIP on nHostPort. You will recieve the following response from the Proxy server.

"HTTP/1.1 200 Connection established
Proxy-agent: CacheFlow-Proxy/1.0"

The 200 means the connection was successfull. All data sent or recieved on the socket connection is now with the new host.

If there is not a proxy to connect to there are MANY "Public Proxy's" on the internet that can be used ( 202.89.128.85:8080 is one).

This works GREAT and was easy to implement in our application. You just need to configure a proxy server IP and Port and if needed, use it to open your socket and then use your hosts IP and port in the "CONNECT " string.

For more info see..
http://www.codeproject.com/internet/httptunneling.asp

--
Jeff Davis
CreditNet Communications
(503) 977-7578
jeff@crednet.com