taler-merchant-httpd_get-private-donau.c (5044B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2024 Taler Systems SA 4 5 TALER is free software; you can redistribute it and/or modify it under the 6 terms of the GNU Affero General Public License as published by the Free Software 7 Foundation; either version 3, or (at your option) any later version. 8 9 TALER is distributed in the hope that it will be useful, but WITHOUT ANY 10 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR 11 A PARTICULAR PURPOSE. See the GNU General Public License for more details. 12 13 You should have received a copy of the GNU General Public License along with 14 TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> 15 */ 16 /** 17 * @file src/backend/taler-merchant-httpd_get-private-donau.c 18 * @brief implementation of GET /donau 19 * @author Bohdan Potuzhnyi 20 * @author Vlada Svirsh 21 */ 22 #include "platform.h" 23 #include <jansson.h> 24 #include <taler/taler_json_lib.h> 25 #include <taler/taler_dbevents.h> 26 #include "taler/taler_merchant_service.h" 27 #include "taler-merchant-httpd_get-private-donau.h" 28 #include "merchant-database/select_donau_instances.h" 29 #include "merchant-database/preflight.h" 30 31 32 /** 33 * Add details about a Donau instance to the JSON array. 34 * 35 * @param cls json array to which the Donau instance details will be added 36 * @param donau_instance_serial the serial number of the Donau instance 37 * @param donau_url the URL of the Donau instance 38 * @param charity_name the name of the charity 39 * @param charity_pub_key the public key of the charity 40 * @param charity_id the ID of the charity 41 * @param charity_max_per_year the maximum donation amount per year 42 * @param charity_receipts_to_date the total donations received so far this year 43 * @param current_year the current year being tracked for donations 44 * @param donau_keys_json JSON object with key information specific to the Donau instance, NULL if not (yet) available. 45 */ 46 static void 47 add_donau_instance (void *cls, 48 uint64_t donau_instance_serial, 49 const char *donau_url, 50 const char *charity_name, 51 const struct DONAU_CharityPublicKeyP *charity_pub_key, 52 uint64_t charity_id, 53 const struct TALER_Amount *charity_max_per_year, 54 const struct TALER_Amount *charity_receipts_to_date, 55 int64_t current_year, 56 const json_t *donau_keys_json) 57 { 58 json_t *json_instances = cls; 59 60 GNUNET_assert ( 61 0 == json_array_append_new ( 62 json_instances, 63 GNUNET_JSON_PACK ( 64 GNUNET_JSON_pack_uint64 ("donau_instance_serial", 65 donau_instance_serial), 66 GNUNET_JSON_pack_string ("donau_url", 67 donau_url), 68 GNUNET_JSON_pack_string ("charity_name", 69 charity_name), 70 GNUNET_JSON_pack_data_auto ("charity_pub_key", 71 charity_pub_key), 72 GNUNET_JSON_pack_uint64 ("charity_id", 73 charity_id), 74 TALER_JSON_pack_amount ("charity_max_per_year", 75 charity_max_per_year), 76 TALER_JSON_pack_amount ("charity_receipts_to_date", 77 charity_receipts_to_date), 78 GNUNET_JSON_pack_int64 ("current_year", 79 current_year), 80 GNUNET_JSON_pack_allow_null ( 81 GNUNET_JSON_pack_object_incref ("donau_keys_json", 82 (json_t *) donau_keys_json)) 83 ))); 84 } 85 86 87 /** 88 * Handle a GET "/donau" request. 89 * 90 * @param rh context of the handler 91 * @param connection the MHD connection to handle 92 * @param[in,out] hc context with further information about the request 93 * @return MHD result code 94 */ 95 enum MHD_Result 96 TMH_private_get_donau_instances (const struct TMH_RequestHandler *rh, 97 struct MHD_Connection *connection, 98 struct TMH_HandlerContext *hc) 99 { 100 json_t *json_donau_instances = json_array (); 101 enum GNUNET_DB_QueryStatus qs; 102 103 TALER_MERCHANTDB_preflight (TMH_db); 104 qs = TALER_MERCHANTDB_select_donau_instances (TMH_db, 105 hc->instance->settings.id, 106 &add_donau_instance, 107 json_donau_instances); 108 if (0 > qs) 109 { 110 GNUNET_break (0); 111 json_decref (json_donau_instances); 112 return TALER_MHD_reply_with_error (connection, 113 MHD_HTTP_INTERNAL_SERVER_ERROR, 114 TALER_EC_GENERIC_DB_FETCH_FAILED, 115 NULL); 116 } 117 118 return TALER_MHD_REPLY_JSON_PACK (connection, 119 MHD_HTTP_OK, 120 GNUNET_JSON_pack_array_steal ( 121 "donau_instances", 122 json_donau_instances)); 123 }