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-check for ETag in request, generate 304 if applicable

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Christian Grothoff 2022-05-17 14:39:52 +02:00
parent a6a1fa9fde
commit a6b2108009
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GPG Key ID: 939E6BE1E29FC3CC
1 changed files with 29 additions and 0 deletions
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29
src/exchange/taler-exchange-httpd_keys.c
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@ -2854,7 +2854,11 @@ TEH_keys_get_handler (struct TEH_RequestContext *rc,
const char *const args[])
{
struct GNUNET_TIME_Timestamp last_issue_date;
const char *etag;
etag = MHD_lookup_connection_value (rc->connection,
MHD_HEADER_KIND,
MHD_HTTP_HEADER_IF_NONE_MATCH);
(void) args;
{
const char *have_cherrypick;
@ -2935,6 +2939,31 @@ TEH_keys_get_handler (struct TEH_RequestContext *rc,
Wait until they are. */
return suspend_request (rc->connection);
}
if ( (NULL != etag) &&
(0 == strcmp (etag,
krd->etag)) )
{
MHD_RESULT ret;
struct MHD_Response *resp;
resp = MHD_create_response_from_buffer (0,
NULL,
MHD_RESPMEM_PERSISTENT);
TALER_MHD_add_global_headers (resp);
GNUNET_break (GNUNET_OK ==
setup_general_response_headers (ksh,
resp));
GNUNET_break (MHD_YES ==
MHD_add_response_header (resp,
MHD_HTTP_HEADER_ETAG,
krd->etag));
ret = MHD_queue_response (rc->connection,
MHD_HTTP_NOT_MODIFIED,
resp);
GNUNET_break (MHD_YES == ret);
MHD_destroy_response (resp);
return ret;
}
return MHD_queue_response (rc->connection,
MHD_HTTP_OK,
(MHD_YES ==