Hi all,

I have a problem and a question:

(1)

When using libcurl, I noticed that my Proxy-Connection: Keep-Alive header gets
stripped and instead turned into ----------------: ---------- (exact
number of dash noted)

I tracked this through ethereal. It's not the proxy because I've watched other
programs go through it without getting stripped of the same header.

I'm using the libcurl 7.15.1, built with OpenSSL, zlib, and kerberos on Windows
using Visual C++ 6.0 sp6.

I used it like this:

  struct curl_slist *headerlist=NULL;
  headerlist = curl_slist_append(headerlist, "Content-Length: 0");
  headerlist = curl_slist_append(headerlist, "Proxy-Connection: Keep-Alive");
  headerlist = curl_slist_append(headerlist, "Pragma: no-cache");

I need the keep-alive header to get a persistent connection through HTTP 1.0
for video/audio conferencing.

And no, the connection does not get kept alive without the header.
(Possibly by the proxy, I know, but then IE gets through) I've tried
mimicking the IE requests by following ethereal, and by far this is
the only perceptible difference.

(2)

Is there a way to just HTTP CONNECT to a server?

Short of modifying libcurl, what I did was tunnel through the proxy with either
NTLM or Kerberos auth (I get the connects here, and I need the auth).
Then CURLOPT_CUSTOMREQUEST to change the GET by the CURLOPT_URL
request into non-parsable (by the proxy) data.

Here's the exact sequence:

SND. CONNECT xxx.xxx.xxx.xxx:443 HTTP/1.0 NTLM_SSP_NEGOTIATE
RCV. HTTP/1.1 Proxy Authentication Required (proxy server)
SND. CONNECT xxx.xxx.xxx.xxx:443 HTTP/1.0 NTLM_SSP_AUTH, User xxx
RCV. HTTP/1.0 Connection established (web server)
SND. Continuation or Non-Http traffic (this one is the GET request
turned to garbage)

The above sequence is okay for my needs. I was just wondering if there
was an easier way.

Am I making it hard for myself?

I would be extremely grateful for any help, Thanks!

Btw, i noticed that the download page still doesn't have the latest
libcurl binaries of 7.15.1 on Windows XP / MSVC. I could provide mine.
If you want zlib, ssl, and kerberos too that is.
Received on 2006-01-11