Hi Daniel...

That looks like one of the ways I was considering. Just authenticate with
the proxy for me and then I take the socket and do the rest myself. This is
clearly the way I was going to do it if there was no interest in new
features for libcurl because it is minimally invasive to libcurl.

The other possibility is a raw transfer protocol type. Then after the
CONNECT and authentication with the proxy, libcurl would just do raw
bidirectional I/O between stdin and stdout and the socket.

Do I understand correctly that the current transfer capabilities for libcurl
are pretty much one way? Supporting file reads or writes (gets, puts, etc.)
between the local and remote? So bidirectional I/O would be a bigger change?

I'm happy to hear that you and others are interested and that there is work
going on in the area.

Thanks,

...Karl

>From: Daniel Stenberg Subject: Re: Passing raw data through a proxy
>Date: Sat, 14 Jan 2006 22:44:05 +0100 (CET)
>
>On Sat, 14 Jan 2006, Karl M wrote:
>
>>I would like to use libcurl to build an application that would
>>authenticate with a proxy and do a CONNECT and then pass raw data through
>>the proxy. I just need stdin/stdout data transferred to/from the
>>proxy(socket) after the CONNECT and authentication are complete. I would
>>then use this application with the ProxyCommand for OpenSSH.
>
>You're the third person within a short time period who asks for something
>like this!
>
>No, this is not something libcurl currently supports but clearly is
>something we should strive to add support for.
>
>>I am looking for advice on the cleanest way to accomplish this with
>>libcurl (or curl if it can do it directly). If I need to make extensions,
>>I would like make the extensions acceptable for contribution to the
>>project.
>
>Allen Chan is working on a patch to bring this functionality. He summed the
>features done so far in this mail:
>
> http://curl.haxx.se/mail/lib-2006-01/0102.html
>
>I'm sure we can make something good of this if we all bring constructive
>feedback and good source code!
>
>Would you say Allen Chan's suggested API would be good enough for your
>intended use case?
>
>--
> Commercial curl and libcurl Technical Support: http://haxx.se/curl.html
Received on 2006-01-15