taler-merchant-httpd_private-get-transfers.c (6543B)
1 /* 2 This file is part of TALER 3 (C) 2014-2025 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 taler-merchant-httpd_private-get-transfers.c 18 * @brief implement API for obtaining a list of wire transfers 19 * @author Marcello Stanisci 20 * @author Christian Grothoff 21 */ 22 #include "platform.h" 23 #include <jansson.h> 24 #include <taler/taler_json_lib.h> 25 #include "taler-merchant-httpd_private-get-transfers.h" 26 27 28 /** 29 * Function called with information about a wire transfer. 30 * Generate a response (array entry) based on the given arguments. 31 * 32 * @param cls closure with a `json_t *` array to build up the response 33 * @param credit_amount amount expected to be wired to the merchant (minus fees), NULL if unknown 34 * @param wtid wire transfer identifier 35 * @param payto_uri target account that received the wire transfer 36 * @param exchange_url base URL of the exchange that made the wire transfer 37 * @param transfer_serial_id serial number identifying the transfer in the backend 38 * @param execution_time when did the exchange make the transfer, #GNUNET_TIME_UNIT_FOREVER_ABS 39 * if it did not yet happen 40 * @param expected true if the merchant acknowledged the wire transfer reception 41 */ 42 static void 43 transfer_cb (void *cls, 44 const struct TALER_Amount *credit_amount, 45 const struct TALER_WireTransferIdentifierRawP *wtid, 46 struct TALER_FullPayto payto_uri, 47 const char *exchange_url, 48 uint64_t transfer_serial_id, 49 struct GNUNET_TIME_Absolute execution_time, 50 bool expected) 51 { 52 json_t *ja = cls; 53 json_t *r; 54 55 r = GNUNET_JSON_PACK ( 56 TALER_JSON_pack_amount ("credit_amount", 57 credit_amount), 58 GNUNET_JSON_pack_data_auto ("wtid", 59 wtid), 60 TALER_JSON_pack_full_payto ("payto_uri", 61 payto_uri), 62 GNUNET_JSON_pack_string ("exchange_url", 63 exchange_url), 64 GNUNET_JSON_pack_uint64 ("transfer_serial_id", 65 transfer_serial_id), 66 // FIXME: protocol breaking to remove... 67 GNUNET_JSON_pack_bool ("verified", 68 false), 69 // FIXME: protocol breaking to remove... 70 GNUNET_JSON_pack_bool ("confirmed", 71 true), 72 GNUNET_JSON_pack_bool ("expected", 73 expected), 74 GNUNET_JSON_pack_timestamp ( 75 "execution_time", 76 GNUNET_TIME_absolute_to_timestamp (execution_time))); 77 GNUNET_assert (0 == 78 json_array_append_new (ja, 79 r)); 80 } 81 82 83 /** 84 * Manages a GET /private/transfers call. 85 * 86 * @param rh context of the handler 87 * @param connection the MHD connection to handle 88 * @param[in,out] hc context with further information about the request 89 * @return MHD result code 90 */ 91 MHD_RESULT 92 TMH_private_get_transfers (const struct TMH_RequestHandler *rh, 93 struct MHD_Connection *connection, 94 struct TMH_HandlerContext *hc) 95 { 96 struct TALER_FullPayto payto_uri = { 97 .full_payto = NULL 98 }; 99 struct GNUNET_TIME_Timestamp before = GNUNET_TIME_UNIT_FOREVER_TS; 100 struct GNUNET_TIME_Timestamp after = GNUNET_TIME_UNIT_ZERO_TS; 101 int64_t limit = -20; 102 uint64_t offset; 103 enum TALER_EXCHANGE_YesNoAll expected; 104 105 (void) rh; 106 TALER_MHD_parse_request_snumber (connection, 107 "limit", 108 &limit); 109 if (limit < 0) 110 offset = INT64_MAX; 111 else 112 offset = 0; 113 TALER_MHD_parse_request_number (connection, 114 "offset", 115 &offset); 116 TALER_MHD_parse_request_yna (connection, 117 "expected", 118 TALER_EXCHANGE_YNA_ALL, 119 &expected); 120 TALER_MHD_parse_request_timestamp (connection, 121 "before", 122 &before); 123 TALER_MHD_parse_request_timestamp (connection, 124 "after", 125 &after); 126 { 127 const char *esc_payto; 128 129 esc_payto = MHD_lookup_connection_value (connection, 130 MHD_GET_ARGUMENT_KIND, 131 "payto_uri"); 132 if (NULL != esc_payto) 133 { 134 payto_uri.full_payto 135 = GNUNET_strdup (esc_payto); 136 (void) MHD_http_unescape (payto_uri.full_payto); 137 } 138 } 139 TMH_db->preflight (TMH_db->cls); 140 { 141 json_t *ja; 142 enum GNUNET_DB_QueryStatus qs; 143 144 ja = json_array (); 145 GNUNET_assert (NULL != ja); 146 qs = TMH_db->lookup_transfers (TMH_db->cls, 147 hc->instance->settings.id, 148 payto_uri, 149 before, 150 after, 151 limit, 152 offset, 153 expected, 154 &transfer_cb, 155 ja); 156 GNUNET_free (payto_uri.full_payto); 157 if (0 > qs) 158 { 159 /* Simple select queries should not cause serialization issues */ 160 GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR != qs); 161 /* Always report on hard error as well to enable diagnostics */ 162 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR == qs); 163 return TALER_MHD_reply_with_error (connection, 164 MHD_HTTP_INTERNAL_SERVER_ERROR, 165 TALER_EC_GENERIC_DB_FETCH_FAILED, 166 "transfers"); 167 } 168 return TALER_MHD_REPLY_JSON_PACK ( 169 connection, 170 MHD_HTTP_OK, 171 GNUNET_JSON_pack_array_steal ("transfers", 172 ja)); 173 } 174 } 175 176 177 /* end of taler-merchant-httpd_track-transfer.c */