Line data Source code
1 : /*
2 : This file is part of TALER
3 : (C) 2019, 2020, 2021 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-products-PRODUCT_ID.c
18 : * @brief implement GET /products/$ID
19 : * @author Christian Grothoff
20 : */
21 : #include "platform.h"
22 : #include "taler-merchant-httpd_get-private-products-PRODUCT_ID.h"
23 : #include <taler/taler_json_lib.h>
24 : #include "taler-merchant-httpd_helper.h"
25 : #include <taler/taler_util.h>
26 : #include "merchant-database/get_product.h"
27 :
28 : /**
29 : * Handle a GET "/products/$ID" request.
30 : *
31 : * @param rh context of the handler
32 : * @param connection the MHD connection to handle
33 : * @param[in,out] hc context with further information about the request
34 : * @return MHD result code
35 : */
36 : enum MHD_Result
37 29 : TMH_private_get_products_ID (
38 : const struct TMH_RequestHandler *rh,
39 : struct MHD_Connection *connection,
40 : struct TMH_HandlerContext *hc)
41 : {
42 29 : struct TMH_MerchantInstance *mi = hc->instance;
43 29 : struct TALER_MERCHANTDB_ProductDetails pd = { 0 };
44 : enum GNUNET_DB_QueryStatus qs;
45 29 : size_t num_categories = 0;
46 29 : uint64_t *categories = NULL;
47 : json_t *jcategories;
48 :
49 29 : GNUNET_assert (NULL != mi);
50 29 : qs = TALER_MERCHANTDB_get_product (TMH_db,
51 29 : mi->settings.id,
52 29 : hc->infix,
53 : &pd,
54 : &num_categories,
55 : &categories);
56 29 : if (0 > qs)
57 : {
58 0 : GNUNET_break (0);
59 0 : return TALER_MHD_reply_with_error (connection,
60 : MHD_HTTP_INTERNAL_SERVER_ERROR,
61 : TALER_EC_GENERIC_DB_FETCH_FAILED,
62 : "get_product");
63 : }
64 29 : if (0 == qs)
65 : {
66 10 : return TALER_MHD_reply_with_error (connection,
67 : MHD_HTTP_NOT_FOUND,
68 : TALER_EC_MERCHANT_GENERIC_PRODUCT_UNKNOWN,
69 10 : hc->infix);
70 : }
71 19 : jcategories = json_array ();
72 19 : GNUNET_assert (NULL != jcategories);
73 25 : for (size_t i = 0; i<num_categories; i++)
74 : {
75 6 : GNUNET_assert (0 ==
76 : json_array_append_new (jcategories,
77 : json_integer (categories[i])));
78 : }
79 19 : GNUNET_free (categories);
80 :
81 : {
82 : enum MHD_Result ret;
83 : int64_t total_stock_api;
84 : char unit_total_stock_buf[64];
85 :
86 19 : if (INT64_MAX == pd.total_stock)
87 1 : total_stock_api = -1;
88 : else
89 18 : total_stock_api = (int64_t) pd.total_stock;
90 :
91 19 : TALER_MERCHANT_vk_format_fractional_string (
92 : TALER_MERCHANT_VK_STOCK,
93 : pd.total_stock,
94 : pd.total_stock_frac,
95 : sizeof (unit_total_stock_buf),
96 : unit_total_stock_buf);
97 :
98 19 : ret = TALER_MHD_REPLY_JSON_PACK (
99 : connection,
100 : MHD_HTTP_OK,
101 : GNUNET_JSON_pack_string ("product_name",
102 : pd.product_name),
103 : GNUNET_JSON_pack_string ("description",
104 : pd.description),
105 : GNUNET_JSON_pack_object_incref ("description_i18n",
106 : pd.description_i18n),
107 : GNUNET_JSON_pack_string ("unit",
108 : pd.unit),
109 : GNUNET_JSON_pack_array_steal ("categories",
110 : jcategories),
111 : // Note: deprecated field
112 : GNUNET_JSON_pack_allow_null (
113 : TALER_JSON_pack_amount ("price",
114 : (0 == pd.price_array_length)
115 : ? NULL
116 : : &pd.price_array[0])),
117 : GNUNET_JSON_pack_allow_null (
118 : GNUNET_JSON_pack_string ("image",
119 : pd.image)),
120 : GNUNET_JSON_pack_allow_null (
121 : GNUNET_JSON_pack_array_incref ("taxes",
122 : pd.taxes)),
123 : GNUNET_JSON_pack_int64 ("total_stock",
124 : total_stock_api),
125 : GNUNET_JSON_pack_string ("unit_total_stock",
126 : unit_total_stock_buf),
127 : GNUNET_JSON_pack_bool ("unit_allow_fraction",
128 : pd.allow_fractional_quantity),
129 : GNUNET_JSON_pack_uint64 ("unit_precision_level",
130 : pd.fractional_precision_level),
131 : TALER_JSON_pack_amount_array ("unit_price",
132 : pd.price_array_length,
133 : pd.price_array),
134 : GNUNET_JSON_pack_uint64 ("total_sold",
135 : pd.total_sold),
136 : GNUNET_JSON_pack_uint64 ("total_lost",
137 : pd.total_lost),
138 : GNUNET_JSON_pack_allow_null (
139 : GNUNET_JSON_pack_object_incref ("address",
140 : pd.address)),
141 : GNUNET_JSON_pack_allow_null (
142 : GNUNET_JSON_pack_timestamp ("next_restock",
143 : (pd.next_restock))),
144 : GNUNET_JSON_pack_uint64 ("product_group_id",
145 : pd.product_group_id),
146 : GNUNET_JSON_pack_uint64 ("money_pot_id",
147 : pd.money_pot_id),
148 : GNUNET_JSON_pack_bool ("price_is_net",
149 : pd.price_is_net),
150 : GNUNET_JSON_pack_uint64 ("minimum_age",
151 : pd.minimum_age));
152 19 : TALER_MERCHANTDB_product_details_free (&pd);
153 19 : return ret;
154 : }
155 : }
156 :
157 :
158 : /* end of taler-merchant-httpd_get-private-products-PRODUCT_ID.c */
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