Hi, we're trying to pass (some) incoming requests to another server using libcurl and the corresponding response back to the client, i.e. basically like a proxy.
For Requests with non-trivial Range:-Headers, and Accept-Encoding, if the server does indeed uses gzip or compressed encoding, curl fails to decompress the body because it is incomplete, and returns no content. As far as I can see, no error is raised, and the request appears to be successful. This can easily be reproduced with the trivial change to examples/getinmemory.c shown below. I'm not sure what a correct behavior for curl would be, i.e. flag this as an error, pass the "raw" response body, or something completely different. I believe using CURLOPT_DEBUGFUNCTION to extract the body would be an appropriate workaround. Other people have stumbled across this in the past, e.g. https://forum.nginx.org/read.php?2,209738,209850 Rainer diff --git a/docs/examples/getinmemory.c b/docs/examples/getinmemory.c index fb79478..cb158f9 100644 --- a/docs/examples/getinmemory.c +++ b/docs/examples/getinmemory.c @@ -72,7 +72,9 @@ int main(void) curl_handle = curl_easy_init(); /* specify URL to get */ - curl_easy_setopt(curl_handle, CURLOPT_URL, "http://www.example.com/";); + curl_easy_setopt(curl_handle, CURLOPT_URL, "https://httpd.apache.org/";); + curl_easy_setopt(curl_handle, CURLOPT_ACCEPT_ENCODING, ""); + curl_easy_setopt(curl_handle, CURLOPT_RANGE, "0-10"); /* send all data to this function */ curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteMemoryCallback); ------------------------------------------------------------------- Unsubscribe: https://cool.haxx.se/list/listinfo/curl-library Etiquette: https://curl.haxx.se/mail/etiquette.html
