taler-auditor-httpd_get-monitoring-balances.c (3652B)
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 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 #include <gnunet/gnunet_util_lib.h> 17 #include <gnunet/gnunet_json_lib.h> 18 #include <jansson.h> 19 #include <microhttpd.h> 20 #include <pthread.h> 21 #include "taler/taler_json_lib.h" 22 #include "taler/taler_mhd_lib.h" 23 #include "taler-auditor-httpd.h" 24 #include "taler-auditor-httpd_get-monitoring-balances.h" 25 #define TALER_AUDITORDB_BALANCES_RESULT_CLOSURE json_t 26 #include "auditor-database/iterate_balances.h" 27 #include "auditor-database/preflight.h" 28 29 /** 30 * Add balance to the list. 31 * 32 * @param[in,out] list a `json_t *` array to extend 33 * @param dc struct of with balance data 34 * @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop iterating 35 */ 36 static enum GNUNET_GenericReturnValue 37 process_balances ( 38 json_t *list, 39 const struct TALER_AUDITORDB_Balances *dc) 40 { 41 json_t *obj; 42 43 obj = GNUNET_JSON_PACK ( 44 GNUNET_JSON_pack_string ("balance_key", 45 dc->balance_key), 46 GNUNET_JSON_pack_allow_null ( 47 TALER_JSON_pack_amount ("balance_value", 48 (GNUNET_OK == 49 TALER_amount_is_valid (&dc->balance_value)) 50 ? &dc->balance_value 51 : NULL)) 52 ); 53 GNUNET_break (0 == 54 json_array_append_new (list, 55 obj)); 56 return GNUNET_OK; 57 } 58 59 60 enum MHD_Result 61 TAH_get_monitoring_balances ( 62 struct TAH_RequestHandler *rh, 63 struct MHD_Connection *connection, 64 void **connection_cls, 65 const char *upload_data, 66 size_t *upload_data_size, 67 const char *const args[]) 68 { 69 json_t *ja; 70 enum GNUNET_DB_QueryStatus qs; 71 const char *balance_key; 72 73 (void) rh; 74 (void) connection_cls; 75 (void) upload_data; 76 (void) upload_data_size; 77 if (GNUNET_SYSERR == 78 TALER_AUDITORDB_preflight (TAH_apg)) 79 { 80 GNUNET_break (0); 81 return TALER_MHD_reply_with_error (connection, 82 MHD_HTTP_INTERNAL_SERVER_ERROR, 83 TALER_EC_GENERIC_DB_SETUP_FAILED, 84 NULL); 85 } 86 balance_key 87 = MHD_lookup_connection_value (connection, 88 MHD_GET_ARGUMENT_KIND, 89 "balance_key"); 90 ja = json_array (); 91 GNUNET_break (NULL != ja); 92 qs = TALER_AUDITORDB_iterate_balances ( 93 TAH_apg, 94 balance_key, 95 &process_balances, 96 ja); 97 if (0 > qs) 98 { 99 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR == qs); 100 json_decref (ja); 101 TALER_LOG_WARNING ( 102 "Failed to handle GET /balances"); 103 return TALER_MHD_reply_with_error (connection, 104 MHD_HTTP_INTERNAL_SERVER_ERROR, 105 TALER_EC_GENERIC_DB_FETCH_FAILED, 106 "balances"); 107 } 108 return TALER_MHD_REPLY_JSON_PACK ( 109 connection, 110 MHD_HTTP_OK, 111 GNUNET_JSON_pack_array_steal ("balances", 112 ja)); 113 }