http: enable keep_error for HTTP requests

curl stops parsing a response when it sees a bad HTTP status code and it
has CURLOPT_FAILONERROR set. This prevents GIT_CURL_VERBOSE to show HTTP
headers on error.

keep_error is an option to receive the HTTP response body for those
error responses. By enabling this option, curl will process the HTTP
response headers, and they're shown if GIT_CURL_VERBOSE is set.

Signed-off-by: Masaya Suzuki <masayasuzuki@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Masaya Suzuki
2019-01-10 11:33:47 -08:00
committed by Junio C Hamano
parent 8dd2e88a92
commit e6cf87b12d
3 changed files with 19 additions and 25 deletions

42
http.c
View File

@ -1837,8 +1837,6 @@ static int http_request(const char *url,
strbuf_addstr(&buf, "Pragma:");
if (options && options->no_cache)
strbuf_addstr(&buf, " no-cache");
if (options && options->keep_error)
curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0);
if (options && options->initial_request &&
http_follow_config == HTTP_FOLLOW_INITIAL)
curl_easy_setopt(slot->curl, CURLOPT_FOLLOWLOCATION, 1);
@ -1856,6 +1854,7 @@ static int http_request(const char *url,
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "");
curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0);
ret = run_one_slot(slot, &results);
@ -1950,29 +1949,26 @@ static int http_request_reauth(const char *url,
return ret;
/*
* If we are using KEEP_ERROR, the previous request may have
* put cruft into our output stream; we should clear it out before
* making our next request.
* The previous request may have put cruft into our output stream; we
* should clear it out before making our next request.
*/
if (options && options->keep_error) {
switch (target) {
case HTTP_REQUEST_STRBUF:
strbuf_reset(result);
break;
case HTTP_REQUEST_FILE:
if (fflush(result)) {
error_errno("unable to flush a file");
return HTTP_START_FAILED;
}
rewind(result);
if (ftruncate(fileno(result), 0) < 0) {
error_errno("unable to truncate a file");
return HTTP_START_FAILED;
}
break;
default:
BUG("Unknown http_request target");
switch (target) {
case HTTP_REQUEST_STRBUF:
strbuf_reset(result);
break;
case HTTP_REQUEST_FILE:
if (fflush(result)) {
error_errno("unable to flush a file");
return HTTP_START_FAILED;
}
rewind(result);
if (ftruncate(fileno(result), 0) < 0) {
error_errno("unable to truncate a file");
return HTTP_START_FAILED;
}
break;
default:
BUG("Unknown http_request target");
}
credential_fill(&http_auth);