Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2020-2026 Taler Systems SA
4 :
5 : TALER is free software; you can redistribute it and/or modify
6 : it under the terms of the GNU Lesser General Public License as
7 : published by the Free Software Foundation; either version 2.1,
8 : or (at your option) any later version.
9 :
10 : TALER is distributed in the hope that it will be useful,
11 : but WITHOUT ANY WARRANTY; without even the implied warranty of
12 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 : GNU Lesser General Public License for more details.
14 :
15 : You should have received a copy of the GNU Lesser General
16 : Public License along with TALER; see the file COPYING.LGPL.
17 : If not, see <http://www.gnu.org/licenses/>
18 : */
19 : /**
20 : * @file merchant_api_post-orders-ORDER_ID-paid-new.c
21 : * @brief Implementation of the POST /orders/$ORDER_ID/paid request
22 : * @author Christian Grothoff
23 : */
24 : #include "taler/platform.h"
25 : #include <curl/curl.h>
26 : #include <jansson.h>
27 : #include <microhttpd.h> /* just for HTTP status codes */
28 : #include <gnunet/gnunet_util_lib.h>
29 : #include <gnunet/gnunet_curl_lib.h>
30 : #include <taler/merchant/post-orders-ORDER_ID-paid.h>
31 : #include "merchant_api_curl_defaults.h"
32 : #include "merchant_api_common.h"
33 : #include <taler/taler_json_lib.h>
34 : #include <taler/taler_curl_lib.h>
35 : #include <taler/taler_signatures.h>
36 :
37 :
38 : /**
39 : * Handle for a POST /orders/$ORDER_ID/paid operation.
40 : */
41 : struct TALER_MERCHANT_PostOrdersPaidHandle
42 : {
43 : /**
44 : * Base URL of the merchant backend.
45 : */
46 : char *base_url;
47 :
48 : /**
49 : * The full URL for this request.
50 : */
51 : char *url;
52 :
53 : /**
54 : * Handle for the request.
55 : */
56 : struct GNUNET_CURL_Job *job;
57 :
58 : /**
59 : * Function to call with the result.
60 : */
61 : TALER_MERCHANT_PostOrdersPaidCallback cb;
62 :
63 : /**
64 : * Closure for @a cb.
65 : */
66 : TALER_MERCHANT_POST_ORDERS_PAID_RESULT_CLOSURE *cb_cls;
67 :
68 : /**
69 : * Reference to the execution context.
70 : */
71 : struct GNUNET_CURL_Context *ctx;
72 :
73 : /**
74 : * Minor context that holds body and headers.
75 : */
76 : struct TALER_CURL_PostContext post_ctx;
77 :
78 : /**
79 : * Order identifier.
80 : */
81 : char *order_id;
82 :
83 : /**
84 : * Session identifier.
85 : */
86 : char *session_id;
87 :
88 : /**
89 : * Hash of the contract terms.
90 : */
91 : struct TALER_PrivateContractHashP h_contract_terms;
92 :
93 : /**
94 : * Merchant signature over the session data.
95 : */
96 : struct TALER_MerchantSignatureP merchant_sig;
97 :
98 : };
99 :
100 :
101 : /**
102 : * Function called when we're done processing the
103 : * HTTP POST /orders/$ORDER_ID/paid request.
104 : *
105 : * @param cls the `struct TALER_MERCHANT_PostOrdersPaidHandle`
106 : * @param response_code HTTP response code, 0 on error
107 : * @param response response body, NULL if not in JSON
108 : */
109 : static void
110 0 : handle_paid_finished (void *cls,
111 : long response_code,
112 : const void *response)
113 : {
114 0 : struct TALER_MERCHANT_PostOrdersPaidHandle *poph = cls;
115 0 : const json_t *json = response;
116 0 : struct TALER_MERCHANT_PostOrdersPaidResponse opr = {
117 0 : .hr.http_status = (unsigned int) response_code,
118 : .hr.reply = json
119 : };
120 :
121 0 : poph->job = NULL;
122 0 : GNUNET_log (GNUNET_ERROR_TYPE_INFO,
123 : "POST /orders/$ID/paid completed with response code %u\n",
124 : (unsigned int) response_code);
125 0 : switch (response_code)
126 : {
127 0 : case 0:
128 0 : opr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
129 0 : break;
130 0 : case MHD_HTTP_OK:
131 : {
132 : struct GNUNET_JSON_Specification spec[] = {
133 0 : GNUNET_JSON_spec_mark_optional (
134 : GNUNET_JSON_spec_string ("pos_confirmation",
135 : &opr.details.ok.pos_confirmation),
136 : NULL),
137 0 : GNUNET_JSON_spec_bool ("refunded",
138 : &opr.details.ok.refunded),
139 0 : GNUNET_JSON_spec_end ()
140 : };
141 :
142 0 : if (GNUNET_OK !=
143 0 : GNUNET_JSON_parse (json,
144 : spec,
145 : NULL, NULL))
146 : {
147 0 : opr.hr.http_status = 0;
148 0 : opr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
149 0 : break;
150 : }
151 : }
152 0 : break;
153 0 : case MHD_HTTP_BAD_REQUEST:
154 0 : opr.hr.ec = TALER_JSON_get_error_code (json);
155 0 : opr.hr.hint = TALER_JSON_get_error_hint (json);
156 0 : break;
157 0 : case MHD_HTTP_FORBIDDEN:
158 0 : opr.hr.ec = TALER_JSON_get_error_code (json);
159 0 : opr.hr.hint = TALER_JSON_get_error_hint (json);
160 0 : break;
161 0 : case MHD_HTTP_NOT_FOUND:
162 0 : opr.hr.ec = TALER_JSON_get_error_code (json);
163 0 : opr.hr.hint = TALER_JSON_get_error_hint (json);
164 0 : break;
165 0 : case MHD_HTTP_INTERNAL_SERVER_ERROR:
166 0 : opr.hr.ec = TALER_JSON_get_error_code (json);
167 0 : opr.hr.hint = TALER_JSON_get_error_hint (json);
168 0 : break;
169 0 : default:
170 0 : TALER_MERCHANT_parse_error_details_ (json,
171 : response_code,
172 : &opr.hr);
173 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
174 : "Unexpected response code %u/%d\n",
175 : (unsigned int) response_code,
176 : (int) opr.hr.ec);
177 0 : GNUNET_break_op (0);
178 0 : break;
179 : }
180 0 : poph->cb (poph->cb_cls,
181 : &opr);
182 0 : TALER_MERCHANT_post_orders_paid_cancel (poph);
183 0 : }
184 :
185 :
186 : struct TALER_MERCHANT_PostOrdersPaidHandle *
187 0 : TALER_MERCHANT_post_orders_paid_create (
188 : struct GNUNET_CURL_Context *ctx,
189 : const char *url,
190 : const char *order_id,
191 : const char *session_id,
192 : const struct TALER_PrivateContractHashP *h_contract_terms,
193 : const struct TALER_MerchantSignatureP *merchant_sig)
194 : {
195 : struct TALER_MERCHANT_PostOrdersPaidHandle *poph;
196 :
197 0 : poph = GNUNET_new (struct TALER_MERCHANT_PostOrdersPaidHandle);
198 0 : poph->ctx = ctx;
199 0 : poph->base_url = GNUNET_strdup (url);
200 0 : poph->order_id = GNUNET_strdup (order_id);
201 0 : poph->session_id = GNUNET_strdup (session_id);
202 0 : poph->h_contract_terms = *h_contract_terms;
203 0 : poph->merchant_sig = *merchant_sig;
204 0 : return poph;
205 : }
206 :
207 :
208 : enum GNUNET_GenericReturnValue
209 0 : TALER_MERCHANT_post_orders_paid_set_options_ (
210 : struct TALER_MERCHANT_PostOrdersPaidHandle *poph,
211 : unsigned int num_options,
212 : const struct TALER_MERCHANT_PostOrdersPaidOptionValue *options)
213 : {
214 0 : for (unsigned int i = 0; i < num_options; i++)
215 : {
216 0 : switch (options[i].option)
217 : {
218 0 : case TALER_MERCHANT_POST_ORDERS_PAID_OPTION_END:
219 0 : return GNUNET_OK;
220 0 : default:
221 0 : GNUNET_break (0);
222 0 : return GNUNET_SYSERR;
223 : }
224 : }
225 0 : return GNUNET_OK;
226 : }
227 :
228 :
229 : enum TALER_ErrorCode
230 0 : TALER_MERCHANT_post_orders_paid_start (
231 : struct TALER_MERCHANT_PostOrdersPaidHandle *poph,
232 : TALER_MERCHANT_PostOrdersPaidCallback cb,
233 : TALER_MERCHANT_POST_ORDERS_PAID_RESULT_CLOSURE *cb_cls)
234 : {
235 : json_t *req_obj;
236 : CURL *eh;
237 :
238 0 : poph->cb = cb;
239 0 : poph->cb_cls = cb_cls;
240 : {
241 : char *path;
242 :
243 0 : GNUNET_asprintf (&path,
244 : "orders/%s/paid",
245 : poph->order_id);
246 0 : poph->url = TALER_url_join (poph->base_url,
247 : path,
248 : NULL);
249 0 : GNUNET_free (path);
250 : }
251 0 : if (NULL == poph->url)
252 0 : return TALER_EC_GENERIC_CONFIGURATION_INVALID;
253 0 : req_obj = GNUNET_JSON_PACK (
254 : GNUNET_JSON_pack_data_auto ("sig",
255 : &poph->merchant_sig),
256 : GNUNET_JSON_pack_data_auto ("h_contract",
257 : &poph->h_contract_terms),
258 : GNUNET_JSON_pack_string ("session_id",
259 : poph->session_id));
260 0 : eh = TALER_MERCHANT_curl_easy_get_ (poph->url);
261 0 : if ( (NULL == eh) ||
262 : (GNUNET_OK !=
263 0 : TALER_curl_easy_post (&poph->post_ctx,
264 : eh,
265 : req_obj)) )
266 : {
267 0 : GNUNET_break (0);
268 0 : json_decref (req_obj);
269 0 : if (NULL != eh)
270 0 : curl_easy_cleanup (eh);
271 0 : return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
272 : }
273 0 : json_decref (req_obj);
274 0 : poph->job = GNUNET_CURL_job_add2 (poph->ctx,
275 : eh,
276 0 : poph->post_ctx.headers,
277 : &handle_paid_finished,
278 : poph);
279 0 : if (NULL == poph->job)
280 0 : return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
281 0 : return TALER_EC_NONE;
282 : }
283 :
284 :
285 : void
286 0 : TALER_MERCHANT_post_orders_paid_cancel (
287 : struct TALER_MERCHANT_PostOrdersPaidHandle *poph)
288 : {
289 0 : if (NULL != poph->job)
290 : {
291 0 : GNUNET_CURL_job_cancel (poph->job);
292 0 : poph->job = NULL;
293 : }
294 0 : TALER_curl_easy_post_finished (&poph->post_ctx);
295 0 : GNUNET_free (poph->order_id);
296 0 : GNUNET_free (poph->session_id);
297 0 : GNUNET_free (poph->url);
298 0 : GNUNET_free (poph->base_url);
299 0 : GNUNET_free (poph);
300 0 : }
301 :
302 :
303 : /* end of merchant_api_post-orders-ORDER_ID-paid-new.c */
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