In addition to Junio's review comments...
On Wednesday, October 28, 2015, Knut Franke
<k.fra...@science-computing.de> wrote:
> CURLAUTH_ANY does not work with proxies which answer unauthenticated requests
> with a 307 redirect to an error page instead of a 407 listing supported
> authentication methods. Therefore, allow the authentication method to be set
> using the environment variable GIT_HTTP_PROXY_AUTHMETHOD or configuration
> variables http.proxyAuthmethod and remote.<name>.proxyAuthmethod (in analogy
> to http.proxy and remote.<name>.proxy).
>
> The following values are supported:
>
> * anyauth (default)
> * basic
> * digest
> * negotiate
> * ntlm
>
> Signed-off-by: Knut Franke <k.fra...@science-computing.de>
> ---
> diff --git a/Documentation/config.txt b/Documentation/config.txt
> index 391a0c3..f2644d1 100644
> --- a/Documentation/config.txt
> +++ b/Documentation/config.txt
> @@ -1597,6 +1597,29 @@ http.proxy::
> `curl(1)`). This can be overridden on a per-remote basis; see
> remote.<name>.proxy
>
> +http.proxyAuthmethod::
Should this be typed as "proxyAuthMethod"?
> + Set the method with which to authenticate against the HTTP proxy.
> This only
> + takes effect if the configured proxy URI contains a user name part (i.e.
> is
> + of the form 'user@host' or 'user@host:port'). This can be overridden on a
> + per-remote basis; see `remote.<name>.proxyAuthmethod`. Both can be
> + overridden by the 'GIT_HTTP_PROXY_AUTHMETHOD' environment variable.
> + Possible values are:
> ++
> +--
> +* `anyauth` - Automatically pick a suitable authentication method. It is
> + assumed that the proxy answers an unauthenticated request with a 407
> + status code and one or more Proxy-authenticate headers with supported
> + authentication methods. This is the default.
> +* `basic` - HTTP Basic authentication
> +* `digest` - HTTP Digest authentication; this prevents the password from
> being
> + transmitted to the proxy in clear text
> +* `negotiate` - GSS-Negotiate authentication (compare the --negotiate option
> + of `curl(1)`)
> +* `ntlm` - NTLM authentication (compare the --ntlm option of `curl(1)`)
> +--
I think you can drop the unnecessary '--' lines here and above.
> ++
> +
No need for the extra unnecessary "+" line and empty line.
> +
> http.cookieFile::
> File containing previously stored cookie lines which should be used
> in the Git http session, if they match the server. The file format
> diff --git a/http.c b/http.c
> index 7da76ed..4756bab 100644
> --- a/http.c
> +++ b/http.c
> @@ -305,6 +324,37 @@ static void init_curl_http_auth(CURL *result)
> +static void init_curl_proxy_auth(CURL *result)
> +{
> + copy_from_env(&http_proxy_authmethod, "GIT_HTTP_PROXY_AUTHMETHOD");
> +
> + if (http_proxy_authmethod) {
> + int i;
> + for (i = 0; i < ARRAY_SIZE(http_proxy_authmethods); i++) {
> + if (!strcmp(http_proxy_authmethod,
> http_proxy_authmethods[i].name)) {
> + curl_easy_setopt(result, CURLOPT_PROXYAUTH,
> +
> http_proxy_authmethods[i].curlauth_param);
> + break;
> + }
> + }
> + if (i == ARRAY_SIZE(http_proxy_authmethods)) {
> + warning("unsupported proxy authentication method %s:
> using default",
> + http_proxy_authmethod);
Does the user know what "default" means here? Does it mean
CURLAUTH_ANY? If so, do you need to invoke curl_easy_setopt(...,
CURLAUTH_ANY) as you do below when http_proxy is NULL?
> + }
> + }
> +#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
> + else
> + curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
> +#endif
> +}
> +
> static int has_cert_password(void)
> {
> if (ssl_cert == NULL || ssl_cert_password_required != 1)
> @@ -466,9 +516,7 @@ static CURL *get_curl_handle(void)
> if (curl_http_proxy) {
> curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy);
> }
> -#if LIBCURL_VERSION_NUM >= 0x070a07
> - curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
> -#endif
> + init_curl_proxy_auth(result);
>
> set_curl_keepalive(result);
>
> diff --git a/remote.c b/remote.c
> index 1101f82..426c6d8 100644
> --- a/remote.c
> +++ b/remote.c
> @@ -427,6 +427,9 @@ static int handle_config(const char *key, const char
> *value, void *cb)
> } else if (!strcmp(subkey, ".proxy")) {
> return git_config_string((const char **)&remote->http_proxy,
> key, value);
> + } else if (!strcmp(subkey, ".proxyAuthmethod")) {
In documentation, write "proxyAuthMethod", but in code use
"proxyauthmethod" string literal.
> + return git_config_string((const char
> **)&remote->http_proxy_authmethod,
> + key, value);
> } else if (!strcmp(subkey, ".vcs")) {
> return git_config_string(&remote->foreign_vcs, key, value);
> }
> diff --git a/remote.h b/remote.h
> index 312b7ca..a221c5a 100644
> --- a/remote.h
> +++ b/remote.h
> @@ -54,6 +54,7 @@ struct remote {
> * for curl remotes only
> */
> char *http_proxy;
> + char *http_proxy_authmethod;
> };
>
> struct remote *remote_get(const char *name);
> --
> 2.3.7
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