taler-merchant-httpd_private-get-instances.c (4201B)
1 /* 2 This file is part of TALER 3 (C) 2019-2023 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-instances.c 18 * @brief implement GET /instances 19 * @author Christian Grothoff 20 */ 21 #include "platform.h" 22 #include "taler-merchant-httpd_private-get-instances.h" 23 24 /** 25 * Add merchant instance to our JSON array. 26 * 27 * @param cls a `json_t *` JSON array to build 28 * @param key unused 29 * @param value a `struct TMH_MerchantInstance *` 30 * @return #GNUNET_OK (continue to iterate) 31 */ 32 static enum GNUNET_GenericReturnValue 33 add_instance (void *cls, 34 const struct GNUNET_HashCode *key, 35 void *value) 36 { 37 json_t *ja = cls; 38 struct TMH_MerchantInstance *mi = value; 39 json_t *pta; 40 41 (void) key; 42 /* Compile array of all unique wire methods supported by this 43 instance */ 44 pta = json_array (); 45 GNUNET_assert (NULL != pta); 46 for (struct TMH_WireMethod *wm = mi->wm_head; 47 NULL != wm; 48 wm = wm->next) 49 { 50 bool duplicate = false; 51 52 if (! wm->active) 53 break; 54 /* Yes, O(n^2), but really how many bank accounts can an 55 instance realistically have for this to matter? */ 56 for (struct TMH_WireMethod *pm = mi->wm_head; 57 pm != wm; 58 pm = pm->next) 59 if (0 == strcasecmp (pm->wire_method, 60 wm->wire_method)) 61 { 62 duplicate = true; 63 break; 64 } 65 if (duplicate) 66 continue; 67 GNUNET_assert (0 == 68 json_array_append_new (pta, 69 json_string (wm->wire_method))); 70 } 71 GNUNET_assert (0 == 72 json_array_append_new ( 73 ja, 74 GNUNET_JSON_PACK ( 75 GNUNET_JSON_pack_string ("name", 76 mi->settings.name), 77 GNUNET_JSON_pack_allow_null ( 78 GNUNET_JSON_pack_string ("website", 79 mi->settings.website)), 80 GNUNET_JSON_pack_allow_null ( 81 GNUNET_JSON_pack_string ("logo", 82 mi->settings.logo)), 83 GNUNET_JSON_pack_string ("id", 84 mi->settings.id), 85 GNUNET_JSON_pack_data_auto ("merchant_pub", 86 &mi->merchant_pub), 87 GNUNET_JSON_pack_array_steal ("payment_targets", 88 pta), 89 GNUNET_JSON_pack_bool ("deleted", 90 mi->deleted)))); 91 return GNUNET_OK; 92 } 93 94 95 /** 96 * Handle a GET "/instances" request. 97 * 98 * @param rh context of the handler 99 * @param connection the MHD connection to handle 100 * @param[in,out] hc context with further information about the request 101 * @return MHD result code 102 */ 103 MHD_RESULT 104 TMH_private_get_instances (const struct TMH_RequestHandler *rh, 105 struct MHD_Connection *connection, 106 struct TMH_HandlerContext *hc) 107 { 108 json_t *ia; 109 110 (void) rh; 111 (void) hc; 112 ia = json_array (); 113 GNUNET_assert (NULL != ia); 114 GNUNET_CONTAINER_multihashmap_iterate (TMH_by_id_map, 115 &add_instance, 116 ia); 117 return TALER_MHD_REPLY_JSON_PACK ( 118 connection, 119 MHD_HTTP_OK, 120 GNUNET_JSON_pack_array_steal ("instances", 121 ia)); 122 } 123 124 125 /* end of taler-merchant-httpd_private-get-instances.c */