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