Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2015-2021 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_management_wire_enable.c
19 : * @brief functions to enable an exchange wire method / bank account
20 : * @author Christian Grothoff
21 : */
22 : #include "platform.h"
23 : #include "taler_json_lib.h"
24 : #include <gnunet/gnunet_curl_lib.h>
25 : #include "taler_exchange_service.h"
26 : #include "exchange_api_curl_defaults.h"
27 : #include "taler_signatures.h"
28 : #include "taler_curl_lib.h"
29 : #include "taler_json_lib.h"
30 :
31 :
32 : struct TALER_EXCHANGE_ManagementWireEnableHandle
33 : {
34 :
35 : /**
36 : * The url for this request.
37 : */
38 : char *url;
39 :
40 : /**
41 : * Minor context that holds body and headers.
42 : */
43 : struct TALER_CURL_PostContext post_ctx;
44 :
45 : /**
46 : * Handle for the request.
47 : */
48 : struct GNUNET_CURL_Job *job;
49 :
50 : /**
51 : * Function to call with the result.
52 : */
53 : TALER_EXCHANGE_ManagementWireEnableCallback cb;
54 :
55 : /**
56 : * Closure for @a cb.
57 : */
58 : void *cb_cls;
59 :
60 : /**
61 : * Reference to the execution context.
62 : */
63 : struct GNUNET_CURL_Context *ctx;
64 : };
65 :
66 :
67 : /**
68 : * Function called when we're done processing the
69 : * HTTP /management/wire request.
70 : *
71 : * @param cls the `struct TALER_EXCHANGE_ManagementAuditorEnableHandle *`
72 : * @param response_code HTTP response code, 0 on error
73 : * @param response response body, NULL if not in JSON
74 : */
75 : static void
76 0 : handle_auditor_enable_finished (void *cls,
77 : long response_code,
78 : const void *response)
79 : {
80 0 : struct TALER_EXCHANGE_ManagementWireEnableHandle *wh = cls;
81 0 : const json_t *json = response;
82 0 : struct TALER_EXCHANGE_HttpResponse hr = {
83 0 : .http_status = (unsigned int) response_code,
84 : .reply = json
85 : };
86 :
87 0 : wh->job = NULL;
88 0 : switch (response_code)
89 : {
90 0 : case 0:
91 : /* no reply */
92 0 : hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
93 0 : hr.hint = "server offline?";
94 0 : break;
95 0 : case MHD_HTTP_NO_CONTENT:
96 0 : break;
97 0 : case MHD_HTTP_FORBIDDEN:
98 0 : hr.ec = TALER_JSON_get_error_code (json);
99 0 : hr.hint = TALER_JSON_get_error_hint (json);
100 0 : break;
101 0 : case MHD_HTTP_CONFLICT:
102 0 : hr.ec = TALER_JSON_get_error_code (json);
103 0 : hr.hint = TALER_JSON_get_error_hint (json);
104 0 : break;
105 0 : default:
106 : /* unexpected response code */
107 0 : GNUNET_break_op (0);
108 0 : hr.ec = TALER_JSON_get_error_code (json);
109 0 : hr.hint = TALER_JSON_get_error_hint (json);
110 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
111 : "Unexpected response code %u/%d for exchange management enable wire\n",
112 : (unsigned int) response_code,
113 : (int) hr.ec);
114 0 : break;
115 : }
116 0 : if (NULL != wh->cb)
117 : {
118 0 : wh->cb (wh->cb_cls,
119 : &hr);
120 0 : wh->cb = NULL;
121 : }
122 0 : TALER_EXCHANGE_management_enable_wire_cancel (wh);
123 0 : }
124 :
125 :
126 : struct TALER_EXCHANGE_ManagementWireEnableHandle *
127 0 : TALER_EXCHANGE_management_enable_wire (
128 : struct GNUNET_CURL_Context *ctx,
129 : const char *url,
130 : const char *payto_uri,
131 : struct GNUNET_TIME_Timestamp validity_start,
132 : const struct TALER_MasterSignatureP *master_sig1,
133 : const struct TALER_MasterSignatureP *master_sig2,
134 : TALER_EXCHANGE_ManagementWireEnableCallback cb,
135 : void *cb_cls)
136 : {
137 : struct TALER_EXCHANGE_ManagementWireEnableHandle *wh;
138 : CURL *eh;
139 : json_t *body;
140 :
141 : {
142 0 : char *msg = TALER_payto_validate (payto_uri);
143 :
144 0 : if (NULL != msg)
145 : {
146 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
147 : "payto URI is malformed: %s\n",
148 : msg);
149 0 : GNUNET_free (msg);
150 0 : return NULL;
151 : }
152 : }
153 0 : wh = GNUNET_new (struct TALER_EXCHANGE_ManagementWireEnableHandle);
154 0 : wh->cb = cb;
155 0 : wh->cb_cls = cb_cls;
156 0 : wh->ctx = ctx;
157 0 : wh->url = TALER_url_join (url,
158 : "management/wire",
159 : NULL);
160 0 : if (NULL == wh->url)
161 : {
162 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
163 : "Could not construct request URL.\n");
164 0 : GNUNET_free (wh);
165 0 : return NULL;
166 : }
167 0 : body = GNUNET_JSON_PACK (
168 : GNUNET_JSON_pack_string ("payto_uri",
169 : payto_uri),
170 : GNUNET_JSON_pack_data_auto ("master_sig_add",
171 : master_sig1),
172 : GNUNET_JSON_pack_data_auto ("master_sig_wire",
173 : master_sig2),
174 : GNUNET_JSON_pack_timestamp ("validity_start",
175 : validity_start));
176 0 : eh = TALER_EXCHANGE_curl_easy_get_ (wh->url);
177 0 : if ( (NULL == eh) ||
178 : (GNUNET_OK !=
179 0 : TALER_curl_easy_post (&wh->post_ctx,
180 : eh,
181 : body)) )
182 : {
183 0 : GNUNET_break (0);
184 0 : if (NULL != eh)
185 0 : curl_easy_cleanup (eh);
186 0 : json_decref (body);
187 0 : GNUNET_free (wh->url);
188 0 : return NULL;
189 : }
190 0 : json_decref (body);
191 0 : GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
192 : "Requesting URL '%s'\n",
193 : wh->url);
194 0 : wh->job = GNUNET_CURL_job_add2 (ctx,
195 : eh,
196 0 : wh->post_ctx.headers,
197 : &handle_auditor_enable_finished,
198 : wh);
199 0 : if (NULL == wh->job)
200 : {
201 0 : TALER_EXCHANGE_management_enable_wire_cancel (wh);
202 0 : return NULL;
203 : }
204 0 : return wh;
205 : }
206 :
207 :
208 : void
209 0 : TALER_EXCHANGE_management_enable_wire_cancel (
210 : struct TALER_EXCHANGE_ManagementWireEnableHandle *wh)
211 : {
212 0 : if (NULL != wh->job)
213 : {
214 0 : GNUNET_CURL_job_cancel (wh->job);
215 0 : wh->job = NULL;
216 : }
217 0 : TALER_curl_easy_post_finished (&wh->post_ctx);
218 0 : GNUNET_free (wh->url);
219 0 : GNUNET_free (wh);
220 0 : }
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