Merge branch 'jx/http-no-proxy'

* jx/http-no-proxy:
  http: honor no_http env variable to bypass proxy

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);