Hi,

How do I prevent Transfer-Encoding header from being included in the CONNECT
request?
The following combination of curl options will hang the proxy:

curl_easy_setopt (curl, CURLOPT_HTTPPROXYTUNNEL, 1L);
chunk = curl_slist_append(chunk, "Transfer-Encoding: chunked");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
curl_easy_setopt (curl, CURLOPT_PROXY, "localhost");
curl_easy_setopt (curl, CURLOPT_PROXYPORT, 7777);
curl_easy_setopt (curl, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
curl_easy_setopt (curl, CURLOPT_PROXYUSERNAME, "proxyuser");
curl_easy_setopt (curl, CURLOPT_PROXYPASSWORD, "proxypasswd");

The proxy ACK:s CONNECT and waits for data to come because of the
Transfer-Encoding is included in the proxy request.
The application waits for 407 response from the proxy.

Output:

* About to connect() to proxy 192.168.0.1 port 7777 (#0)
* Trying 192.168.0.1... * connected
* Connected to 192.168.0.1 (192.168.0.1) port 7777 (#0)
* Establish HTTP proxy tunnel to 192.168.0.1:8080
> CONNECT 192.168.0.1:8080 HTTP/1.0
Host: 192.168.0.1:8080
Proxy-Connection: Keep-Alive
Transfer-Encoding: chunked

^C

Thanks for any good words,
Patricia

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Received on 2010-07-22