Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2023-2026 Taler Systems SA
4 :
5 : TALER is free software; you can redistribute it and/or modify it under the
6 : terms of the GNU Lesser General Public License as published by the Free Software
7 : Foundation; either version 2.1, 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 Lesser General Public License for more details.
12 :
13 : You should have received a copy of the GNU Lesser General Public License along with
14 : TALER; see the file COPYING.LGPL. If not, see
15 : <http://www.gnu.org/licenses/>
16 : */
17 : /**
18 : * @file merchant_api_get-private-tokenfamilies-TOKEN_FAMILY_SLUG-new.c
19 : * @brief Implementation of the GET /private/tokenfamilies/$TOKEN_FAMILY_SLUG request
20 : * @author Christian Grothoff
21 : */
22 : #include "taler/platform.h"
23 : #include <curl/curl.h>
24 : #include <jansson.h>
25 : #include <microhttpd.h> /* just for HTTP status codes */
26 : #include <gnunet/gnunet_util_lib.h>
27 : #include <gnunet/gnunet_curl_lib.h>
28 : #include \
29 : <taler/merchant/get-private-tokenfamilies-TOKEN_FAMILY_SLUG.h>
30 : #include "merchant_api_curl_defaults.h"
31 : #include <taler/taler_json_lib.h>
32 :
33 :
34 : /**
35 : * Handle for a GET /private/tokenfamilies/$TOKEN_FAMILY_SLUG operation.
36 : */
37 : struct TALER_MERCHANT_GetPrivateTokenfamiliesHandle
38 : {
39 : /**
40 : * Base URL of the merchant backend.
41 : */
42 : char *base_url;
43 :
44 : /**
45 : * The full URL for this request.
46 : */
47 : char *url;
48 :
49 : /**
50 : * Handle for the request.
51 : */
52 : struct GNUNET_CURL_Job *job;
53 :
54 : /**
55 : * Function to call with the result.
56 : */
57 : TALER_MERCHANT_GetPrivateTokenfamiliesCallback cb;
58 :
59 : /**
60 : * Closure for @a cb.
61 : */
62 : TALER_MERCHANT_GET_PRIVATE_TOKENFAMILIES_RESULT_CLOSURE *cb_cls;
63 :
64 : /**
65 : * Reference to the execution context.
66 : */
67 : struct GNUNET_CURL_Context *ctx;
68 :
69 : /**
70 : * Token family slug.
71 : */
72 : char *token_family_slug;
73 : };
74 :
75 :
76 : /**
77 : * Function called when we're done processing the
78 : * HTTP GET /private/tokenfamilies/$TOKEN_FAMILY_SLUG request.
79 : *
80 : * @param cls the `struct TALER_MERCHANT_GetPrivateTokenfamiliesHandle`
81 : * @param response_code HTTP response code, 0 on error
82 : * @param response response body, NULL if not in JSON
83 : */
84 : static void
85 0 : handle_get_token_family_finished (void *cls,
86 : long response_code,
87 : const void *response)
88 : {
89 0 : struct TALER_MERCHANT_GetPrivateTokenfamiliesHandle *gptf = cls;
90 0 : const json_t *json = response;
91 0 : struct TALER_MERCHANT_GetPrivateTokenfamiliesResponse tfgr = {
92 0 : .hr.http_status = (unsigned int) response_code,
93 : .hr.reply = json
94 : };
95 :
96 0 : gptf->job = NULL;
97 0 : GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
98 : "Got /private/tokenfamilies/$SLUG response with status code %u\n",
99 : (unsigned int) response_code);
100 0 : switch (response_code)
101 : {
102 0 : case MHD_HTTP_OK:
103 : {
104 : struct GNUNET_JSON_Specification spec[] = {
105 0 : GNUNET_JSON_spec_string ("slug",
106 : &tfgr.details.ok.slug),
107 0 : GNUNET_JSON_spec_string ("name",
108 : &tfgr.details.ok.name),
109 0 : GNUNET_JSON_spec_string ("description",
110 : &tfgr.details.ok.description),
111 0 : GNUNET_JSON_spec_object_const ("description_i18n",
112 : &tfgr.details.ok.description_i18n),
113 0 : GNUNET_JSON_spec_mark_optional (
114 : GNUNET_JSON_spec_object_const ("extra_data",
115 : &tfgr.details.ok.extra_data),
116 : NULL),
117 0 : GNUNET_JSON_spec_timestamp ("valid_after",
118 : &tfgr.details.ok.valid_after),
119 0 : GNUNET_JSON_spec_timestamp ("valid_before",
120 : &tfgr.details.ok.valid_before),
121 0 : GNUNET_JSON_spec_relative_time ("duration",
122 : &tfgr.details.ok.duration),
123 0 : GNUNET_JSON_spec_relative_time ("validity_granularity",
124 : &tfgr.details.ok.validity_granularity),
125 0 : GNUNET_JSON_spec_relative_time ("start_offset",
126 : &tfgr.details.ok.start_offset),
127 0 : GNUNET_JSON_spec_string ("kind",
128 : &tfgr.details.ok.kind),
129 0 : GNUNET_JSON_spec_uint64 ("issued",
130 : &tfgr.details.ok.issued),
131 0 : GNUNET_JSON_spec_uint64 ("used",
132 : &tfgr.details.ok.used),
133 0 : GNUNET_JSON_spec_end ()
134 : };
135 :
136 0 : if (GNUNET_OK ==
137 0 : GNUNET_JSON_parse (json,
138 : spec,
139 : NULL, NULL))
140 : {
141 0 : gptf->cb (gptf->cb_cls,
142 : &tfgr);
143 0 : GNUNET_JSON_parse_free (spec);
144 0 : TALER_MERCHANT_get_private_tokenfamilies_cancel (gptf);
145 0 : return;
146 : }
147 0 : tfgr.hr.http_status = 0;
148 0 : tfgr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
149 0 : break;
150 : }
151 0 : case MHD_HTTP_UNAUTHORIZED:
152 0 : tfgr.hr.ec = TALER_JSON_get_error_code (json);
153 0 : tfgr.hr.hint = TALER_JSON_get_error_hint (json);
154 : /* Nothing really to verify, merchant says we need to authenticate. */
155 0 : break;
156 0 : case MHD_HTTP_NOT_FOUND:
157 0 : tfgr.hr.ec = TALER_JSON_get_error_code (json);
158 0 : tfgr.hr.hint = TALER_JSON_get_error_hint (json);
159 0 : break;
160 0 : default:
161 : /* unexpected response code */
162 0 : tfgr.hr.ec = TALER_JSON_get_error_code (json);
163 0 : tfgr.hr.hint = TALER_JSON_get_error_hint (json);
164 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
165 : "Unexpected response code %u/%d\n",
166 : (unsigned int) response_code,
167 : (int) tfgr.hr.ec);
168 0 : break;
169 : }
170 0 : gptf->cb (gptf->cb_cls,
171 : &tfgr);
172 0 : TALER_MERCHANT_get_private_tokenfamilies_cancel (gptf);
173 : }
174 :
175 :
176 : struct TALER_MERCHANT_GetPrivateTokenfamiliesHandle *
177 0 : TALER_MERCHANT_get_private_tokenfamilies_create (
178 : struct GNUNET_CURL_Context *ctx,
179 : const char *url,
180 : const char *token_family_slug)
181 : {
182 : struct TALER_MERCHANT_GetPrivateTokenfamiliesHandle *gptf;
183 :
184 0 : gptf = GNUNET_new (struct TALER_MERCHANT_GetPrivateTokenfamiliesHandle);
185 0 : gptf->ctx = ctx;
186 0 : gptf->base_url = GNUNET_strdup (url);
187 0 : gptf->token_family_slug = GNUNET_strdup (token_family_slug);
188 0 : return gptf;
189 : }
190 :
191 :
192 : enum TALER_ErrorCode
193 0 : TALER_MERCHANT_get_private_tokenfamilies_start (
194 : struct TALER_MERCHANT_GetPrivateTokenfamiliesHandle *gptf,
195 : TALER_MERCHANT_GetPrivateTokenfamiliesCallback cb,
196 : TALER_MERCHANT_GET_PRIVATE_TOKENFAMILIES_RESULT_CLOSURE *cb_cls)
197 : {
198 : CURL *eh;
199 :
200 0 : gptf->cb = cb;
201 0 : gptf->cb_cls = cb_cls;
202 : {
203 : char *path;
204 :
205 0 : GNUNET_asprintf (&path,
206 : "private/tokenfamilies/%s",
207 : gptf->token_family_slug);
208 0 : gptf->url = TALER_url_join (gptf->base_url,
209 : path,
210 : NULL);
211 0 : GNUNET_free (path);
212 : }
213 0 : if (NULL == gptf->url)
214 0 : return TALER_EC_GENERIC_CONFIGURATION_INVALID;
215 0 : eh = TALER_MERCHANT_curl_easy_get_ (gptf->url);
216 0 : if (NULL == eh)
217 0 : return TALER_EC_GENERIC_CONFIGURATION_INVALID;
218 0 : gptf->job = GNUNET_CURL_job_add (gptf->ctx,
219 : eh,
220 : &handle_get_token_family_finished,
221 : gptf);
222 0 : if (NULL == gptf->job)
223 0 : return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
224 0 : return TALER_EC_NONE;
225 : }
226 :
227 :
228 : void
229 0 : TALER_MERCHANT_get_private_tokenfamilies_cancel (
230 : struct TALER_MERCHANT_GetPrivateTokenfamiliesHandle *gptf)
231 : {
232 0 : if (NULL != gptf->job)
233 : {
234 0 : GNUNET_CURL_job_cancel (gptf->job);
235 0 : gptf->job = NULL;
236 : }
237 0 : GNUNET_free (gptf->url);
238 0 : GNUNET_free (gptf->base_url);
239 0 : GNUNET_free (gptf->token_family_slug);
240 0 : GNUNET_free (gptf);
241 0 : }
242 :
243 :
244 : /* end of merchant_api_get-private-tokenfamilies-TOKEN_FAMILY_SLUG-new.c */
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