Re: [PATCH] http: honor no_http env variable to bypass proxy
From: Junio C Hamano <hidden>
Date: 2016-06-15 23:08:33
Jiang Xin [off-list ref] writes:
From: Jiang Xin <redacted>
Curl and its families honor several proxy related environment variables:
* http_proxy and https_proxy define proxy for http/https connections.
* no_proxy (a comma separated hosts) defines hosts bypass the proxy.
This command will bypass the bad-proxy and connect to the host directly:
no_proxy=* https_proxy=http://bad-proxy/ \
curl -sk https://google.com/
Before commit 372370f (http: use credential API to handle proxy auth...),
Environment variable "no_proxy" will take effect if the config variable
"http.proxy" is not set. So the following comamnd won't fail if not
behind a firewall.
no_proxy=* https_proxy=http://bad-proxy/ \
git ls-remote https://github.com/git/git
But commit 372370f not only read git config variable "http.proxy", but
also read "http_proxy" and "https_proxy" environment variables, and set
the curl option using:
curl_easy_setopt(result, CURLOPT_PROXY, proxy_auth.host);
This caused "no_proxy" environment variable not working any more.
Set extra curl option "CURLOPT_NOPROXY" will fix this issue.
Signed-off-by: Jiang Xin <redacted>
---
http.c | 6 ++++++
1 file changed, 6 insertions(+)Sounds sensible; I am guessing that this is 2.8.0-rc0 regression that we need to fast-track? Knut, does this look good? Thanks.
quoted hunk
diff --git a/http.c b/http.c index 1d5e3bb..69da445 100644 --- a/http.c +++ b/http.c@@ -70,6 +70,7 @@ static long curl_low_speed_limit = -1; static long curl_low_speed_time = -1; static int curl_ftp_no_epsv; static const char *curl_http_proxy; +static const char *curl_no_proxy; static const char *http_proxy_authmethod; static struct { const char *name;@@ -624,6 +625,11 @@ static CURL *get_curl_handle(void) } curl_easy_setopt(result, CURLOPT_PROXY, proxy_auth.host); +#if LIBCURL_VERSION_NUM >= 0x071304 + var_override(&curl_no_proxy, getenv("NO_PROXY")); + var_override(&curl_no_proxy, getenv("no_proxy")); + curl_easy_setopt(result, CURLOPT_NOPROXY, curl_no_proxy); +#endif } init_curl_proxy_auth(result);