Unable to tunnel through proxy

[bignell]

hi all,

when connecting to a proxy server via SSL i get an exception:
java.io.IOException: Unable to tunnel through proxy...com:8080.
Proxy returns "HTTP/1.1 200 Connection established"

i looked at the source code on the sun pages, and here it is:

/* We asked for HTTP/1.0, so we should get that back */
if (!replyStr.startsWith("HTTP/1.0 200")) {

ok, http 1.1 is only 6 years old, so i could not expect that it also made its way into java

i have found only one site on the web about this bug (http://www.javaworld.com/javaworld/j...avatip111.html) but the solution there is of no use to me because the guy who wrote this article is using the URLConnection instead of HttpsURLConnection

do you have heard about that bug or have seen a solution?

please help if you can

thanks,
big nell

[CornedBee]

Just out of interest, where did you find the source?

[bignell]

this is the url:
http://java.sun.com/j2se/1.4/docs/gu...Tunneling.java

you can find all sources on
http://java.sun.com/j2se/1.4/docs/gu...y/jsse/samples

[CornedBee]

Thanks

[CornedBee]

Well, as I see it if the proxy returns HTTP/1.1 something is wrong with the proxy:

String msg = "CONNECT " + host + ":" + port + " HTTP/1.0\n"
		     + "User-Agent: "
		     + sun.net.www.protocol.http.HttpURLConnection.userAgent
		     + "\r\n\r\n";

This code explicitly requests a HTTP 1.0 connection, so the proxy should return a HTTP 1.0 connection please.

You can of course change the request to a 1.1 HTTP.

[bignell]

yeah, but all proxies i can use return HTTP/1.1, and if you check the forums, many people have the same problem
so what i wanted to change is to check if the number 200 (stands for connection established) is returned within the string
ok, i'm relatively new to java, but that is no problem
the problem is if i change this one statement in the file and compile the file, where to i have to put it that it will be called instead of the original? (i prefixed only the message with >>>, compiled it, compiled my program and started it, but the message remained the original, so it is clear i have to replace the original file somewhere, but where?)

thanks,
big nell

[bignell]

btw, what's VBF?

[CornedBee]

VBF is short for Visual Basic Forums, that's where we are.

As opposed to GT, the GalahTech forum, the new great page.