Line data Source code
1 : /*
2 : This file is part of GNU Taler
3 : Copyright (C) 2024, 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 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/util/order_choice_serialize.c
18 : * @brief shared logic for order choice serialization
19 : * @author Iván Ávalos
20 : * @author Christian Grothoff
21 : */
22 : #include "platform.h"
23 : #include <gnunet/gnunet_json_lib.h>
24 : #include <gnunet/gnunet_common.h>
25 : #include <taler/taler_json_lib.h>
26 : #include <jansson.h>
27 : #include "taler/taler_util.h"
28 : #include "taler/taler_merchant_util.h"
29 :
30 : /**
31 : * Get JSON representation of order choice input.
32 : *
33 : * @param[in] input order terms choice input
34 : * @return JSON representation of @a input; NULL on error
35 : */
36 : static json_t *
37 0 : json_from_order_input (
38 : const struct TALER_MERCHANT_OrderInput *input)
39 : {
40 0 : switch (input->type)
41 : {
42 0 : case TALER_MERCHANT_CONTRACT_INPUT_TYPE_INVALID:
43 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
44 : "invalid order input type");
45 0 : GNUNET_assert (0);
46 : return NULL;
47 0 : case TALER_MERCHANT_CONTRACT_INPUT_TYPE_TOKEN:
48 0 : return GNUNET_JSON_PACK (
49 : GNUNET_JSON_pack_string ("type",
50 : "token"),
51 : GNUNET_JSON_pack_string ("token_family_slug",
52 : input->details.token.token_family_slug),
53 : GNUNET_JSON_pack_uint64 ("count",
54 : input->details.token.count));
55 : }
56 :
57 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
58 : "unsupported order input type %d",
59 : input->type);
60 0 : GNUNET_assert (0);
61 : return NULL;
62 : }
63 :
64 :
65 : /**
66 : * Get JSON representation of order choice output.
67 : *
68 : * @param[in] output order terms choice output
69 : * @return JSON representation of @a output; NULL on error
70 : */
71 : static json_t *
72 0 : json_from_order_output (
73 : const struct TALER_MERCHANT_OrderOutput *output)
74 : {
75 0 : switch (output->type)
76 : {
77 0 : case TALER_MERCHANT_CONTRACT_OUTPUT_TYPE_INVALID:
78 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
79 : "invalid order output type");
80 0 : GNUNET_assert (0);
81 : return NULL;
82 0 : case TALER_MERCHANT_CONTRACT_OUTPUT_TYPE_TOKEN:
83 0 : return GNUNET_JSON_PACK (
84 : GNUNET_JSON_pack_string ("type",
85 : "token"),
86 : GNUNET_JSON_pack_string ("token_family_slug",
87 : output->details.token.token_family_slug),
88 : GNUNET_JSON_pack_uint64 ("count",
89 : output->details.token.count),
90 : GNUNET_JSON_pack_conditional (
91 : ! GNUNET_TIME_absolute_is_zero (output->details.token.valid_at.abs_time),
92 : GNUNET_JSON_pack_timestamp ("valid_at",
93 : output->details.token.valid_at)));
94 0 : case TALER_MERCHANT_CONTRACT_OUTPUT_TYPE_DONATION_RECEIPT:
95 0 : return GNUNET_JSON_PACK (
96 : GNUNET_JSON_pack_string ("type",
97 : "tax-receipt"),
98 : GNUNET_JSON_pack_allow_null (
99 : TALER_JSON_pack_amount ("amount",
100 : output->details.donation_receipt.no_amount
101 : ? NULL
102 : : &output->details.donation_receipt.amount)));
103 : }
104 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
105 : "Unsupported order output type %d",
106 : output->type);
107 0 : GNUNET_assert (0);
108 : return NULL;
109 : }
110 :
111 :
112 : json_t *
113 3 : TALER_MERCHANT_json_from_order_choice (
114 : const struct TALER_MERCHANT_OrderChoice *choice)
115 : {
116 : json_t *inputs;
117 : json_t *outputs;
118 :
119 3 : inputs = json_array ();
120 3 : GNUNET_assert (NULL != inputs);
121 3 : for (unsigned int i = 0; i < choice->inputs_len; i++)
122 0 : GNUNET_assert (0 ==
123 : json_array_append_new (inputs,
124 : json_from_order_input (
125 : &choice->inputs[i])));
126 3 : outputs = json_array ();
127 3 : GNUNET_assert (NULL != outputs);
128 3 : for (unsigned int i = 0; i < choice->outputs_len; i++)
129 0 : GNUNET_assert (0 ==
130 : json_array_append_new (outputs,
131 : json_from_order_output (
132 : &choice->outputs[i])));
133 :
134 3 : return GNUNET_JSON_PACK (
135 : TALER_JSON_pack_amount ("amount",
136 : &choice->amount),
137 : GNUNET_JSON_pack_allow_null (
138 : TALER_JSON_pack_amount ("tip",
139 : choice->no_tip
140 : ? NULL
141 : : &choice->tip)),
142 : GNUNET_JSON_pack_allow_null (
143 : GNUNET_JSON_pack_string ("description",
144 : choice->description)),
145 : GNUNET_JSON_pack_allow_null (
146 : GNUNET_JSON_pack_object_incref ("description_i18n",
147 : choice->description_i18n)),
148 : GNUNET_JSON_pack_allow_null (
149 : TALER_JSON_pack_amount ("max_fee",
150 : choice->no_max_fee
151 : ? NULL
152 : : &choice->max_fee)),
153 : GNUNET_JSON_pack_array_steal ("inputs",
154 : inputs),
155 : GNUNET_JSON_pack_array_steal ("outputs",
156 : outputs));
157 : }
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