diff options
Diffstat (limited to 'src/exchange/taler-exchange-httpd_config.c')
-rw-r--r-- | src/exchange/taler-exchange-httpd_config.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/exchange/taler-exchange-httpd_config.c b/src/exchange/taler-exchange-httpd_config.c new file mode 100644 index 000000000..257dfa6ba --- /dev/null +++ b/src/exchange/taler-exchange-httpd_config.c @@ -0,0 +1,92 @@ +/* + This file is part of TALER + Copyright (C) 2015-2024 Taler Systems SA + + TALER is free software; you can redistribute it and/or modify it under the + terms of the GNU Affero General Public License as published by the Free Software + Foundation; either version 3, or (at your option) any later version. + + TALER is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR + A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License along with + TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> +*/ +/** + * @file taler-exchange-httpd_config.c + * @brief Handle /config requests + * @author Christian Grothoff + */ +#include "platform.h" +#include <gnunet/gnunet_json_lib.h> +#include "taler_dbevents.h" +#include "taler-exchange-httpd_config.h" +#include "taler_json_lib.h" +#include "taler_kyclogic_lib.h" +#include "taler_mhd_lib.h" +#include <jansson.h> + + +MHD_RESULT +TEH_handler_config (struct TEH_RequestContext *rc, + const char *const args[]) +{ + static struct MHD_Response *resp; + static struct GNUNET_TIME_Absolute a; + + (void) args; + if ( (GNUNET_TIME_absolute_is_past (a)) && + (NULL != resp) ) + { + MHD_destroy_response (resp); + resp = NULL; + } + if (NULL == resp) + { + struct GNUNET_TIME_Timestamp km; + char dat[128]; + + a = GNUNET_TIME_relative_to_absolute (GNUNET_TIME_UNIT_DAYS); + /* Round up to next full day to ensure the expiration + time does not become a fingerprint! */ + a = GNUNET_TIME_absolute_round_down (a, + GNUNET_TIME_UNIT_DAYS); + a = GNUNET_TIME_absolute_add (a, + GNUNET_TIME_UNIT_DAYS); + /* => /config response stays at most 48h in caches! */ + km = GNUNET_TIME_absolute_to_timestamp (a); + TALER_MHD_get_date_string (km.abs_time, + dat); + resp = TALER_MHD_MAKE_JSON_PACK ( + GNUNET_JSON_pack_array_steal ("supported_kyc_requirements", + TALER_KYCLOGIC_get_satisfiable ()), + GNUNET_JSON_pack_object_steal ( + "currency_specification", + TALER_CONFIG_currency_specs_to_json (TEH_cspec)), + GNUNET_JSON_pack_string ("currency", + TEH_currency), + GNUNET_JSON_pack_string ("name", + "taler-exchange"), + GNUNET_JSON_pack_string ("implementation", + "urn:net:taler:specs:taler-exchange:c-reference") + , + GNUNET_JSON_pack_string ("version", + EXCHANGE_PROTOCOL_VERSION)); + + GNUNET_break (MHD_YES == + MHD_add_response_header (resp, + MHD_HTTP_HEADER_EXPIRES, + dat)); + GNUNET_break (MHD_YES == + MHD_add_response_header (resp, + MHD_HTTP_HEADER_CACHE_CONTROL, + "public,max-age=21600")); /* 6h */ + } + return MHD_queue_response (rc->connection, + MHD_HTTP_OK, + resp); +} + + +/* end of taler-exchange-httpd_config.c */ |