Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2015-2026 Taler Systems SA
4 :
5 : TALER is free software; you can redistribute it and/or modify it under the
6 : terms of the GNU 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
15 : <http://www.gnu.org/licenses/>
16 : */
17 : /**
18 : * @file lib/exchange_api_post-management-wire-disable.c
19 : * @brief functions to disable an exchange wire method / bank account
20 : * @author Christian Grothoff
21 : */
22 : #include "taler/platform.h"
23 : #include "taler/taler_json_lib.h"
24 : #include <gnunet/gnunet_curl_lib.h>
25 : #include <microhttpd.h>
26 : #include "taler/taler_exchange_service.h"
27 : #include "taler/taler-exchange/post-management-wire-disable.h"
28 : #include "exchange_api_curl_defaults.h"
29 : #include "taler/taler_signatures.h"
30 : #include "taler/taler_curl_lib.h"
31 :
32 :
33 : struct TALER_EXCHANGE_PostManagementWireDisableHandle
34 : {
35 :
36 : /**
37 : * The base URL for this request.
38 : */
39 : char *base_url;
40 :
41 : /**
42 : * The full URL for this request, set during _start.
43 : */
44 : char *url;
45 :
46 : /**
47 : * Minor context that holds body and headers.
48 : */
49 : struct TALER_CURL_PostContext post_ctx;
50 :
51 : /**
52 : * Handle for the request.
53 : */
54 : struct GNUNET_CURL_Job *job;
55 :
56 : /**
57 : * Function to call with the result.
58 : */
59 : TALER_EXCHANGE_PostManagementWireDisableCallback cb;
60 :
61 : /**
62 : * Closure for @a cb.
63 : */
64 : TALER_EXCHANGE_POST_MANAGEMENT_WIRE_DISABLE_RESULT_CLOSURE *cb_cls;
65 :
66 : /**
67 : * Reference to the execution context.
68 : */
69 : struct GNUNET_CURL_Context *ctx;
70 :
71 : /**
72 : * Payto URI of the account to disable.
73 : */
74 : char *payto_uri_str;
75 :
76 : /**
77 : * When was this decided?
78 : */
79 : struct GNUNET_TIME_Timestamp validity_end;
80 :
81 : /**
82 : * Signature affirming the wire disablement.
83 : */
84 : struct TALER_MasterSignatureP master_sig;
85 :
86 : };
87 :
88 :
89 : /**
90 : * Function called when we're done processing the
91 : * HTTP POST /management/wire/disable request.
92 : *
93 : * @param cls the `struct TALER_EXCHANGE_PostManagementWireDisableHandle`
94 : * @param response_code HTTP response code, 0 on error
95 : * @param response response body, NULL if not in JSON
96 : */
97 : static void
98 6 : handle_wire_disable_finished (void *cls,
99 : long response_code,
100 : const void *response)
101 : {
102 6 : struct TALER_EXCHANGE_PostManagementWireDisableHandle *pmwdh = cls;
103 6 : const json_t *json = response;
104 6 : struct TALER_EXCHANGE_PostManagementWireDisableResponse res = {
105 6 : .hr.http_status = (unsigned int) response_code,
106 : .hr.reply = json
107 : };
108 :
109 6 : pmwdh->job = NULL;
110 6 : switch (response_code)
111 : {
112 0 : case 0:
113 : /* no reply */
114 0 : res.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
115 0 : res.hr.hint = "server offline?";
116 0 : break;
117 2 : case MHD_HTTP_NO_CONTENT:
118 2 : break;
119 2 : case MHD_HTTP_FORBIDDEN:
120 2 : res.hr.ec = TALER_JSON_get_error_code (json);
121 2 : res.hr.hint = TALER_JSON_get_error_hint (json);
122 2 : break;
123 2 : case MHD_HTTP_NOT_FOUND:
124 2 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
125 : "Server did not find handler at `%s'. Did you configure the correct exchange base URL?\n",
126 : pmwdh->url);
127 2 : if (NULL != json)
128 : {
129 2 : res.hr.ec = TALER_JSON_get_error_code (json);
130 2 : res.hr.hint = TALER_JSON_get_error_hint (json);
131 : }
132 : else
133 : {
134 0 : res.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
135 0 : res.hr.hint = TALER_ErrorCode_get_hint (res.hr.ec);
136 : }
137 2 : break;
138 0 : case MHD_HTTP_CONFLICT:
139 0 : res.hr.ec = TALER_JSON_get_error_code (json);
140 0 : res.hr.hint = TALER_JSON_get_error_hint (json);
141 0 : break;
142 0 : default:
143 : /* unexpected response code */
144 0 : GNUNET_break_op (0);
145 0 : res.hr.ec = TALER_JSON_get_error_code (json);
146 0 : res.hr.hint = TALER_JSON_get_error_hint (json);
147 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
148 : "Unexpected response code %u/%d for exchange management disable wire\n",
149 : (unsigned int) response_code,
150 : (int) res.hr.ec);
151 0 : break;
152 : }
153 6 : if (NULL != pmwdh->cb)
154 : {
155 6 : pmwdh->cb (pmwdh->cb_cls,
156 : &res);
157 6 : pmwdh->cb = NULL;
158 : }
159 6 : TALER_EXCHANGE_post_management_wire_disable_cancel (pmwdh);
160 6 : }
161 :
162 :
163 : struct TALER_EXCHANGE_PostManagementWireDisableHandle *
164 6 : TALER_EXCHANGE_post_management_wire_disable_create (
165 : struct GNUNET_CURL_Context *ctx,
166 : const char *exchange_url,
167 : const struct TALER_FullPayto payto_uri,
168 : struct GNUNET_TIME_Timestamp validity_end,
169 : const struct TALER_MasterSignatureP *master_sig)
170 : {
171 : struct TALER_EXCHANGE_PostManagementWireDisableHandle *pmwdh;
172 :
173 6 : pmwdh = GNUNET_new (struct TALER_EXCHANGE_PostManagementWireDisableHandle);
174 6 : pmwdh->ctx = ctx;
175 6 : pmwdh->base_url = GNUNET_strdup (exchange_url);
176 6 : pmwdh->payto_uri_str = GNUNET_strdup (payto_uri.full_payto);
177 6 : pmwdh->validity_end = validity_end;
178 6 : pmwdh->master_sig = *master_sig;
179 6 : return pmwdh;
180 : }
181 :
182 :
183 : enum TALER_ErrorCode
184 6 : TALER_EXCHANGE_post_management_wire_disable_start (
185 : struct TALER_EXCHANGE_PostManagementWireDisableHandle *pmwdh,
186 : TALER_EXCHANGE_PostManagementWireDisableCallback cb,
187 : TALER_EXCHANGE_POST_MANAGEMENT_WIRE_DISABLE_RESULT_CLOSURE *cb_cls)
188 : {
189 : CURL *eh;
190 : json_t *body;
191 6 : struct TALER_FullPayto payto_uri = {
192 6 : .full_payto = pmwdh->payto_uri_str
193 : };
194 :
195 6 : pmwdh->cb = cb;
196 6 : pmwdh->cb_cls = cb_cls;
197 6 : pmwdh->url = TALER_url_join (pmwdh->base_url,
198 : "management/wire/disable",
199 : NULL);
200 6 : if (NULL == pmwdh->url)
201 : {
202 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
203 : "Could not construct request URL.\n");
204 0 : return TALER_EC_GENERIC_CONFIGURATION_INVALID;
205 : }
206 6 : body = GNUNET_JSON_PACK (
207 : TALER_JSON_pack_full_payto ("payto_uri",
208 : payto_uri),
209 : GNUNET_JSON_pack_data_auto ("master_sig_del",
210 : &pmwdh->master_sig),
211 : GNUNET_JSON_pack_timestamp ("validity_end",
212 : pmwdh->validity_end));
213 6 : eh = TALER_EXCHANGE_curl_easy_get_ (pmwdh->url);
214 12 : if ( (NULL == eh) ||
215 : (GNUNET_OK !=
216 6 : TALER_curl_easy_post (&pmwdh->post_ctx,
217 : eh,
218 : body)) )
219 : {
220 0 : GNUNET_break (0);
221 0 : if (NULL != eh)
222 0 : curl_easy_cleanup (eh);
223 0 : json_decref (body);
224 0 : GNUNET_free (pmwdh->url);
225 0 : pmwdh->url = NULL;
226 0 : return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
227 : }
228 6 : json_decref (body);
229 6 : GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
230 : "Requesting URL '%s'\n",
231 : pmwdh->url);
232 12 : pmwdh->job = GNUNET_CURL_job_add2 (pmwdh->ctx,
233 : eh,
234 6 : pmwdh->post_ctx.headers,
235 : &handle_wire_disable_finished,
236 : pmwdh);
237 6 : if (NULL == pmwdh->job)
238 : {
239 0 : TALER_curl_easy_post_finished (&pmwdh->post_ctx);
240 0 : GNUNET_free (pmwdh->url);
241 0 : pmwdh->url = NULL;
242 0 : return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
243 : }
244 6 : return TALER_EC_NONE;
245 : }
246 :
247 :
248 : void
249 6 : TALER_EXCHANGE_post_management_wire_disable_cancel (
250 : struct TALER_EXCHANGE_PostManagementWireDisableHandle *pmwdh)
251 : {
252 6 : if (NULL != pmwdh->job)
253 : {
254 0 : GNUNET_CURL_job_cancel (pmwdh->job);
255 0 : pmwdh->job = NULL;
256 : }
257 6 : TALER_curl_easy_post_finished (&pmwdh->post_ctx);
258 6 : GNUNET_free (pmwdh->payto_uri_str);
259 6 : GNUNET_free (pmwdh->url);
260 6 : GNUNET_free (pmwdh->base_url);
261 6 : GNUNET_free (pmwdh);
262 6 : }
263 :
264 :
265 : /* end of exchange_api_post-management-wire-disable.c */
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