diff options
Diffstat (limited to 'src/backend/taler-merchant-httpd_tip-pickup_get.c')
| -rw-r--r-- | src/backend/taler-merchant-httpd_tip-pickup_get.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/backend/taler-merchant-httpd_tip-pickup_get.c b/src/backend/taler-merchant-httpd_tip-pickup_get.c new file mode 100644 index 00000000..42066e3c --- /dev/null +++ b/src/backend/taler-merchant-httpd_tip-pickup_get.c @@ -0,0 +1,146 @@ +/* + This file is part of TALER + (C) 2017-2020 Taler Systems SA + + TALER is free software; you can redistribute it and/or modify it under the + terms of the GNU 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 General Public License for more details. + + You should have received a copy of the GNU General Public License along with + TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> +*/ +/** + * @file backend/taler-merchant-httpd_tip-pickup.c + * @brief implementation of /tip-pickup handler + * @author Christian Grothoff + */ +#include "platform.h" +#include <microhttpd.h> +#include <jansson.h> +#include <taler/taler_json_lib.h> +#include <taler/taler_signatures.h> +#include "taler-merchant-httpd.h" +#include "taler-merchant-httpd_mhd.h" +#include "taler-merchant-httpd_exchanges.h" +#include "taler-merchant-httpd_tip-pickup.h" + + +/** + * Manages a GET /tip-pickup call, checking that the tip is authorized, + * and if so, returning the withdrawal permissions. + * + * @param rh context of the handler + * @param connection the MHD connection to handle + * @param[in,out] connection_cls the connection's closure (can be updated) + * @param upload_data upload data + * @param[in,out] upload_data_size number of bytes (left) in @a upload_data + * @param mi merchant backend instance, never NULL + * @return MHD result code + */ +MHD_RESULT +MH_handler_tip_pickup_get (struct TMH_RequestHandler *rh, + struct MHD_Connection *connection, + void **connection_cls, + const char *upload_data, + size_t *upload_data_size, + struct MerchantInstance *mi) +{ + const char *tip_id_str; + char *exchange_url; + json_t *extra; + struct GNUNET_HashCode tip_id; + struct TALER_Amount tip_amount; + struct TALER_Amount tip_amount_left; + struct GNUNET_TIME_Absolute timestamp; + struct GNUNET_TIME_Absolute timestamp_expire; + MHD_RESULT ret; + enum GNUNET_DB_QueryStatus qs; + + tip_id_str = MHD_lookup_connection_value (connection, + MHD_GET_ARGUMENT_KIND, + "tip_id"); + + if (NULL == tip_id_str) + { + /* tip_id is required but missing */ + GNUNET_break_op (0); + return TALER_MHD_reply_with_error (connection, + MHD_HTTP_BAD_REQUEST, + TALER_EC_PARAMETER_MISSING, + "tip_id required"); + } + + if (GNUNET_OK != + GNUNET_CRYPTO_hash_from_string (tip_id_str, + &tip_id)) + { + /* tip_id has wrong encoding */ + GNUNET_break_op (0); + return TALER_MHD_reply_with_error (connection, + MHD_HTTP_BAD_REQUEST, + TALER_EC_PARAMETER_MALFORMED, + "tip_id malformed"); + } + + db->preflight (db->cls); + qs = db->lookup_tip_by_id (db->cls, + &tip_id, + &exchange_url, + &extra, + &tip_amount, + &tip_amount_left, + ×tamp); + + if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT != qs) + { + unsigned int response_code; + enum TALER_ErrorCode ec; + + switch (qs) + { + case GNUNET_DB_STATUS_SUCCESS_NO_RESULTS: + ec = TALER_EC_TIP_PICKUP_TIP_ID_UNKNOWN; + response_code = MHD_HTTP_NOT_FOUND; + break; + case GNUNET_DB_STATUS_SOFT_ERROR: + ec = TALER_EC_TIP_PICKUP_DB_ERROR_SOFT; + response_code = MHD_HTTP_INTERNAL_SERVER_ERROR; + break; + case GNUNET_DB_STATUS_HARD_ERROR: + ec = TALER_EC_TIP_PICKUP_DB_ERROR_HARD; + response_code = MHD_HTTP_INTERNAL_SERVER_ERROR; + break; + default: + GNUNET_break (0); + ec = TALER_EC_INTERNAL_LOGIC_ERROR; + response_code = MHD_HTTP_INTERNAL_SERVER_ERROR; + break; + } + return TALER_MHD_reply_with_error (connection, + response_code, + ec, + "Could not determine exchange URL for the given tip id"); + } + + timestamp_expire = GNUNET_TIME_absolute_add (timestamp, + GNUNET_TIME_UNIT_DAYS); + + ret = TALER_MHD_reply_json_pack ( + connection, + MHD_HTTP_OK, + "{s:s, s:o, s:o, s:o, s:o, s:o}", + "exchange_url", exchange_url, + "amount", TALER_JSON_from_amount (&tip_amount), + "amount_left", TALER_JSON_from_amount (&tip_amount_left), + "stamp_created", GNUNET_JSON_from_time_abs (timestamp), + "stamp_expire", GNUNET_JSON_from_time_abs (timestamp_expire), + "extra", extra); + + GNUNET_free (exchange_url); + json_decref (extra); + return ret; +} |