diff options
author | Christian Grothoff <christian@grothoff.org> | 2022-10-01 23:06:24 +0200 |
---|---|---|
committer | Christian Grothoff <christian@grothoff.org> | 2022-10-01 23:06:24 +0200 |
commit | 2f1fb32e1c51b05361ddf3321c316e3d8c65ebfe (patch) | |
tree | d617b733df72c0c8849f8b51ca53276648709f3b /src/exchange/taler-exchange-httpd_reserves_get_attest.c | |
parent | 7bf0f2a43d42b168beaee8fbbafe51386f1127b1 (diff) | |
download | exchange-2f1fb32e1c51b05361ddf3321c316e3d8c65ebfe.tar.gz exchange-2f1fb32e1c51b05361ddf3321c316e3d8c65ebfe.tar.bz2 exchange-2f1fb32e1c51b05361ddf3321c316e3d8c65ebfe.zip |
-skeletons for reserve control endpoints
Diffstat (limited to 'src/exchange/taler-exchange-httpd_reserves_get_attest.c')
-rw-r--r-- | src/exchange/taler-exchange-httpd_reserves_get_attest.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/exchange/taler-exchange-httpd_reserves_get_attest.c b/src/exchange/taler-exchange-httpd_reserves_get_attest.c new file mode 100644 index 000000000..7d98babc0 --- /dev/null +++ b/src/exchange/taler-exchange-httpd_reserves_get_attest.c @@ -0,0 +1,146 @@ +/* + This file is part of TALER + Copyright (C) 2014-2022 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_reserves_get_attest.c + * @brief Handle GET /reserves/$RESERVE_PUB/attest requests + * @author Christian Grothoff + */ +#include "platform.h" +#include <gnunet/gnunet_util_lib.h> +#include <jansson.h> +#include "taler_mhd_lib.h" +#include "taler_json_lib.h" +#include "taler_dbevents.h" +#include "taler-exchange-httpd_keys.h" +#include "taler-exchange-httpd_reserves_get_attest.h" +#include "taler-exchange-httpd_responses.h" + + +/** + * Closure for #reserve_attest_transaction. + */ +struct ReserveAttestContext +{ + /** + * Public key of the reserve the inquiry is about. + */ + struct TALER_ReservePublicKeyP reserve_pub; + + /** + * Available attributes. + */ + json_t *attributes; + + /** + * Set to true if we did not find the reserve. + */ + bool not_found; +}; + + +/** + * Function implementing GET /reserves/$RID/attest transaction. + * Execute a /reserves/ get attest. Given the public key of a reserve, + * return the associated transaction attest. Runs the + * transaction logic; IF it returns a non-error code, the transaction + * logic MUST NOT queue a MHD response. IF it returns an hard error, + * the transaction logic MUST queue a MHD response and set @a mhd_ret. + * IF it returns the soft error code, the function MAY be called again + * to retry and MUST not queue a MHD response. + * + * @param cls a `struct ReserveAttestContext *` + * @param connection MHD request which triggered the transaction + * @param[out] mhd_ret set to MHD response status for @a connection, + * if transaction failed (!) + * @return transaction status + */ +static enum GNUNET_DB_QueryStatus +reserve_attest_transaction (void *cls, + struct MHD_Connection *connection, + MHD_RESULT *mhd_ret) +{ + struct ReserveAttestContext *rsc = cls; + enum GNUNET_DB_QueryStatus qs; + + qs = TEH_plugin->get_reserve_attributes (TEH_plugin->cls, + &rsc->reserve_pub, + &rsc->attributes); + if (GNUNET_DB_STATUS_HARD_ERROR == qs) + { + GNUNET_break (0); + *mhd_ret + = TALER_MHD_reply_with_error (connection, + MHD_HTTP_INTERNAL_SERVER_ERROR, + TALER_EC_GENERIC_DB_FETCH_FAILED, + "get_reserve_attributes"); + } + if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs) + rsc->not_found = true; + if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs) + rsc->not_found = false; + return qs; +} + + +MHD_RESULT +TEH_handler_reserves_get_attest (struct TEH_RequestContext *rc, + const char *const args[1]) +{ + struct ReserveAttestContext rsc; + + if (GNUNET_OK != + GNUNET_STRINGS_string_to_data (args[0], + strlen (args[0]), + &rsc.reserve_pub, + sizeof (rsc.reserve_pub))) + { + GNUNET_break_op (0); + return TALER_MHD_reply_with_error (rc->connection, + MHD_HTTP_BAD_REQUEST, + TALER_EC_MERCHANT_GENERIC_RESERVE_PUB_MALFORMED, + args[0]); + } + { + MHD_RESULT mhd_ret; + + if (GNUNET_OK != + TEH_DB_run_transaction (rc->connection, + "get-attestable", + TEH_MT_REQUEST_OTHER, + &mhd_ret, + &reserve_attest_transaction, + &rsc)) + { + return mhd_ret; + } + } + /* generate proper response */ + if (rsc.not_found) + { + return TALER_MHD_reply_with_error (rc->connection, + MHD_HTTP_NOT_FOUND, + TALER_EC_EXCHANGE_RESERVES_STATUS_UNKNOWN, + args[0]); + } + return TALER_MHD_REPLY_JSON_PACK ( + rc->connection, + MHD_HTTP_OK, + TALER_JSON_pack_object_steal ("attributes", + &rsc.attributes)); +} + + +/* end of taler-exchange-httpd_reserves_get_attest.c */ |