For the libcurl bindings in the R programming language, I would like to user to be able to connect to an arbitrary server using any authentication method. However setting CURLOPT_HTTPAUTH to CURLAUTH_ANY actually causes authentication failures in some cases.
Here is an example: https://gist.github.com/jeroenooms/94ed3749f0f401900b73. This particular example uses hidden basic auth. It works with the default CURLOPT_HTTPAUTH but when we set it to CURLAUTH_ANY it fails. When we change the URL to http://httpbin.org/basic-auth/jerry/secret we see what happens. When CURLAUTH_ANY is set, curl first performs a request without Authorization header, and then when the server returns a 401 it tries again with Authorization header. This doesn't work for hidden auth because it returns a 404 instead of 401. ------------------------------------------------------------------- List admin: http://cool.haxx.se/list/listinfo/curl-library Etiquette: http://curl.haxx.se/mail/etiquette.html
