Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2022-2026 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-accounts-H_WIRE-new.c
19 : * @brief Implementation of the GET /private/accounts/$H_WIRE request
20 : * @author Christian Grothoff
21 : */
22 : #include "taler/platform.h"
23 : #include <curl/curl.h>
24 : #include <jansson.h>
25 : #include <microhttpd.h> /* just for HTTP status codes */
26 : #include <gnunet/gnunet_util_lib.h>
27 : #include <gnunet/gnunet_curl_lib.h>
28 : #include <taler/merchant/get-private-accounts-H_WIRE.h>
29 : #include "merchant_api_curl_defaults.h"
30 : #include <taler/taler_json_lib.h>
31 :
32 :
33 : /**
34 : * Handle for a GET /private/accounts/$H_WIRE operation.
35 : */
36 : struct TALER_MERCHANT_GetPrivateAccountHandle
37 : {
38 : /**
39 : * Base URL of the merchant backend.
40 : */
41 : char *base_url;
42 :
43 : /**
44 : * Instance identifier.
45 : */
46 : char *instance_id;
47 :
48 : /**
49 : * Hash of the wire details identifying the account.
50 : */
51 : struct TALER_MerchantWireHashP h_wire;
52 :
53 : /**
54 : * The full URL for this request.
55 : */
56 : char *url;
57 :
58 : /**
59 : * Handle for the request.
60 : */
61 : struct GNUNET_CURL_Job *job;
62 :
63 : /**
64 : * Function to call with the result.
65 : */
66 : TALER_MERCHANT_GetPrivateAccountCallback cb;
67 :
68 : /**
69 : * Closure for @a cb.
70 : */
71 : TALER_MERCHANT_GET_PRIVATE_ACCOUNT_RESULT_CLOSURE *cb_cls;
72 :
73 : /**
74 : * Reference to the execution context.
75 : */
76 : struct GNUNET_CURL_Context *ctx;
77 : };
78 :
79 :
80 : /**
81 : * Function called when we're done processing the
82 : * HTTP GET /private/accounts/$H_WIRE request.
83 : *
84 : * @param cls the `struct TALER_MERCHANT_GetPrivateAccountHandle`
85 : * @param response_code HTTP response code, 0 on error
86 : * @param response response body, NULL if not in JSON
87 : */
88 : static void
89 0 : handle_get_account_finished (void *cls,
90 : long response_code,
91 : const void *response)
92 : {
93 0 : struct TALER_MERCHANT_GetPrivateAccountHandle *gpa = cls;
94 0 : const json_t *json = response;
95 0 : struct TALER_MERCHANT_GetPrivateAccountResponse agr = {
96 0 : .hr.http_status = (unsigned int) response_code,
97 : .hr.reply = json
98 : };
99 :
100 0 : gpa->job = NULL;
101 0 : GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
102 : "Got /private/accounts/$H_WIRE response with status code %u\n",
103 : (unsigned int) response_code);
104 0 : switch (response_code)
105 : {
106 0 : case MHD_HTTP_OK:
107 : {
108 : struct GNUNET_JSON_Specification spec[] = {
109 0 : GNUNET_JSON_spec_fixed_auto ("salt",
110 : &agr.details.ok.ad.salt),
111 0 : GNUNET_JSON_spec_mark_optional (
112 : TALER_JSON_spec_web_url ("credit_facade_url",
113 : &agr.details.ok.ad.credit_facade_url),
114 : NULL),
115 0 : TALER_JSON_spec_full_payto_uri ("payto_uri",
116 : &agr.details.ok.ad.payto_uri),
117 0 : GNUNET_JSON_spec_fixed_auto ("h_wire",
118 : &agr.details.ok.ad.h_wire),
119 0 : GNUNET_JSON_spec_bool ("active",
120 : &agr.details.ok.ad.active),
121 0 : GNUNET_JSON_spec_mark_optional (
122 : GNUNET_JSON_spec_object_const (
123 : "extra_wire_subject_metadata",
124 : &agr.details.ok.ad.extra_wire_subject_metadata),
125 : NULL),
126 0 : GNUNET_JSON_spec_end ()
127 : };
128 :
129 0 : if (GNUNET_OK ==
130 0 : GNUNET_JSON_parse (json,
131 : spec,
132 : NULL, NULL))
133 : {
134 0 : gpa->cb (gpa->cb_cls,
135 : &agr);
136 0 : TALER_MERCHANT_get_private_account_cancel (gpa);
137 0 : return;
138 : }
139 0 : agr.hr.http_status = 0;
140 0 : agr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
141 0 : break;
142 : }
143 0 : case MHD_HTTP_UNAUTHORIZED:
144 0 : agr.hr.ec = TALER_JSON_get_error_code (json);
145 0 : agr.hr.hint = TALER_JSON_get_error_hint (json);
146 0 : break;
147 0 : case MHD_HTTP_NOT_FOUND:
148 0 : agr.hr.ec = TALER_JSON_get_error_code (json);
149 0 : agr.hr.hint = TALER_JSON_get_error_hint (json);
150 0 : break;
151 0 : default:
152 0 : agr.hr.ec = TALER_JSON_get_error_code (json);
153 0 : agr.hr.hint = TALER_JSON_get_error_hint (json);
154 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
155 : "Unexpected response code %u/%d\n",
156 : (unsigned int) response_code,
157 : (int) agr.hr.ec);
158 0 : break;
159 : }
160 0 : gpa->cb (gpa->cb_cls,
161 : &agr);
162 0 : TALER_MERCHANT_get_private_account_cancel (gpa);
163 : }
164 :
165 :
166 : struct TALER_MERCHANT_GetPrivateAccountHandle *
167 0 : TALER_MERCHANT_get_private_account_create (
168 : struct GNUNET_CURL_Context *ctx,
169 : const char *url,
170 : const char *instance_id,
171 : const struct TALER_MerchantWireHashP *h_wire)
172 : {
173 : struct TALER_MERCHANT_GetPrivateAccountHandle *gpa;
174 :
175 0 : gpa = GNUNET_new (struct TALER_MERCHANT_GetPrivateAccountHandle);
176 0 : gpa->ctx = ctx;
177 0 : gpa->base_url = GNUNET_strdup (url);
178 0 : gpa->instance_id = GNUNET_strdup (instance_id);
179 0 : gpa->h_wire = *h_wire;
180 0 : return gpa;
181 : }
182 :
183 :
184 : enum TALER_ErrorCode
185 0 : TALER_MERCHANT_get_private_account_start (
186 : struct TALER_MERCHANT_GetPrivateAccountHandle *gpa,
187 : TALER_MERCHANT_GetPrivateAccountCallback cb,
188 : TALER_MERCHANT_GET_PRIVATE_ACCOUNT_RESULT_CLOSURE *cb_cls)
189 : {
190 : CURL *eh;
191 :
192 0 : gpa->cb = cb;
193 0 : gpa->cb_cls = cb_cls;
194 : {
195 : char w_str[sizeof (gpa->h_wire) * 2];
196 : char *path;
197 : char *end;
198 :
199 0 : end = GNUNET_STRINGS_data_to_string (&gpa->h_wire,
200 : sizeof (gpa->h_wire),
201 : w_str,
202 : sizeof (w_str));
203 0 : *end = '\0';
204 0 : GNUNET_asprintf (&path,
205 : "private/accounts/%s",
206 : w_str);
207 0 : gpa->url = TALER_url_join (gpa->base_url,
208 : path,
209 : NULL);
210 0 : GNUNET_free (path);
211 : }
212 0 : if (NULL == gpa->url)
213 0 : return TALER_EC_GENERIC_CONFIGURATION_INVALID;
214 0 : eh = TALER_MERCHANT_curl_easy_get_ (gpa->url);
215 0 : if (NULL == eh)
216 0 : return TALER_EC_GENERIC_CONFIGURATION_INVALID;
217 0 : gpa->job = GNUNET_CURL_job_add (gpa->ctx,
218 : eh,
219 : &handle_get_account_finished,
220 : gpa);
221 0 : if (NULL == gpa->job)
222 0 : return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
223 0 : return TALER_EC_NONE;
224 : }
225 :
226 :
227 : void
228 0 : TALER_MERCHANT_get_private_account_cancel (
229 : struct TALER_MERCHANT_GetPrivateAccountHandle *gpa)
230 : {
231 0 : if (NULL != gpa->job)
232 : {
233 0 : GNUNET_CURL_job_cancel (gpa->job);
234 0 : gpa->job = NULL;
235 : }
236 0 : GNUNET_free (gpa->url);
237 0 : GNUNET_free (gpa->instance_id);
238 0 : GNUNET_free (gpa->base_url);
239 0 : GNUNET_free (gpa);
240 0 : }
241 :
242 :
243 : /* end of merchant_api_get-private-accounts-H_WIRE-new.c */
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