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_auditor_disable.c
19 : * @brief functions to disable an auditor
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 : * @brief Handle for a POST /management/auditors/$AUDITOR_PUB/disable request.
33 : */
34 : struct TALER_EXCHANGE_ManagementAuditorDisableHandle
35 : {
36 :
37 : /**
38 : * The url for this request.
39 : */
40 : char *url;
41 :
42 : /**
43 : * Minor context that holds body and headers.
44 : */
45 : struct TALER_CURL_PostContext post_ctx;
46 :
47 : /**
48 : * Handle for the request.
49 : */
50 : struct GNUNET_CURL_Job *job;
51 :
52 : /**
53 : * Function to call with the result.
54 : */
55 : TALER_EXCHANGE_ManagementAuditorDisableCallback cb;
56 :
57 : /**
58 : * Closure for @a cb.
59 : */
60 : void *cb_cls;
61 :
62 : /**
63 : * Reference to the execution context.
64 : */
65 : struct GNUNET_CURL_Context *ctx;
66 : };
67 :
68 :
69 : /**
70 : * Function called when we're done processing the
71 : * HTTP /management/auditors/%s/disable request.
72 : *
73 : * @param cls the `struct TALER_EXCHANGE_ManagementAuditorDisableHandle *`
74 : * @param response_code HTTP response code, 0 on error
75 : * @param response response body, NULL if not in JSON
76 : */
77 : static void
78 0 : handle_auditor_disable_finished (void *cls,
79 : long response_code,
80 : const void *response)
81 : {
82 0 : struct TALER_EXCHANGE_ManagementAuditorDisableHandle *ah = cls;
83 0 : const json_t *json = response;
84 0 : struct TALER_EXCHANGE_HttpResponse hr = {
85 0 : .http_status = (unsigned int) response_code,
86 : .reply = json
87 : };
88 :
89 0 : ah->job = NULL;
90 0 : switch (response_code)
91 : {
92 0 : case MHD_HTTP_NO_CONTENT:
93 0 : break;
94 0 : case MHD_HTTP_FORBIDDEN:
95 0 : hr.ec = TALER_JSON_get_error_code (json);
96 0 : hr.hint = TALER_JSON_get_error_hint (json);
97 0 : break;
98 0 : case MHD_HTTP_NOT_FOUND:
99 0 : hr.ec = TALER_JSON_get_error_code (json);
100 0 : hr.hint = TALER_JSON_get_error_hint (json);
101 0 : break;
102 0 : case MHD_HTTP_CONFLICT:
103 0 : hr.ec = TALER_JSON_get_error_code (json);
104 0 : hr.hint = TALER_JSON_get_error_hint (json);
105 0 : break;
106 0 : default:
107 : /* unexpected response code */
108 0 : GNUNET_break_op (0);
109 0 : hr.ec = TALER_JSON_get_error_code (json);
110 0 : hr.hint = TALER_JSON_get_error_hint (json);
111 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
112 : "Unexpected response code %u/%d for exchange management auditor disable\n",
113 : (unsigned int) response_code,
114 : (int) hr.ec);
115 0 : break;
116 : }
117 0 : if (NULL != ah->cb)
118 : {
119 0 : ah->cb (ah->cb_cls,
120 : &hr);
121 0 : ah->cb = NULL;
122 : }
123 0 : TALER_EXCHANGE_management_disable_auditor_cancel (ah);
124 0 : }
125 :
126 :
127 : struct TALER_EXCHANGE_ManagementAuditorDisableHandle *
128 0 : TALER_EXCHANGE_management_disable_auditor (
129 : struct GNUNET_CURL_Context *ctx,
130 : const char *url,
131 : const struct TALER_AuditorPublicKeyP *auditor_pub,
132 : struct GNUNET_TIME_Timestamp validity_end,
133 : const struct TALER_MasterSignatureP *master_sig,
134 : TALER_EXCHANGE_ManagementAuditorDisableCallback cb,
135 : void *cb_cls)
136 : {
137 : struct TALER_EXCHANGE_ManagementAuditorDisableHandle *ah;
138 : CURL *eh;
139 : json_t *body;
140 :
141 0 : ah = GNUNET_new (struct TALER_EXCHANGE_ManagementAuditorDisableHandle);
142 0 : ah->cb = cb;
143 0 : ah->cb_cls = cb_cls;
144 0 : ah->ctx = ctx;
145 : {
146 : char epub_str[sizeof (*auditor_pub) * 2];
147 : char arg_str[sizeof (epub_str) + 64];
148 : char *end;
149 :
150 0 : end = GNUNET_STRINGS_data_to_string (auditor_pub,
151 : sizeof (*auditor_pub),
152 : epub_str,
153 : sizeof (epub_str));
154 0 : *end = '\0';
155 0 : GNUNET_snprintf (arg_str,
156 : sizeof (arg_str),
157 : "management/auditors/%s/disable",
158 : epub_str);
159 0 : ah->url = TALER_url_join (url,
160 : arg_str,
161 : NULL);
162 : }
163 0 : if (NULL == ah->url)
164 : {
165 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
166 : "Could not construct request URL.\n");
167 0 : GNUNET_free (ah);
168 0 : return NULL;
169 : }
170 0 : body = GNUNET_JSON_PACK (
171 : GNUNET_JSON_pack_data_auto ("master_sig",
172 : master_sig),
173 : GNUNET_JSON_pack_timestamp ("validity_end",
174 : validity_end));
175 0 : eh = TALER_EXCHANGE_curl_easy_get_ (ah->url);
176 0 : if ( (NULL == eh) ||
177 : (GNUNET_OK !=
178 0 : TALER_curl_easy_post (&ah->post_ctx,
179 : eh,
180 : body)))
181 : {
182 0 : GNUNET_break (0);
183 0 : if (NULL != eh)
184 0 : curl_easy_cleanup (eh);
185 0 : json_decref (body);
186 0 : GNUNET_free (ah->url);
187 0 : return NULL;
188 : }
189 0 : json_decref (body);
190 0 : GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
191 : "Requesting URL '%s'\n",
192 : ah->url);
193 0 : ah->job = GNUNET_CURL_job_add2 (ctx,
194 : eh,
195 0 : ah->post_ctx.headers,
196 : &handle_auditor_disable_finished,
197 : ah);
198 0 : if (NULL == ah->job)
199 : {
200 0 : TALER_EXCHANGE_management_disable_auditor_cancel (ah);
201 0 : return NULL;
202 : }
203 0 : return ah;
204 : }
205 :
206 :
207 : void
208 0 : TALER_EXCHANGE_management_disable_auditor_cancel (
209 : struct TALER_EXCHANGE_ManagementAuditorDisableHandle *ah)
210 : {
211 0 : if (NULL != ah->job)
212 : {
213 0 : GNUNET_CURL_job_cancel (ah->job);
214 0 : ah->job = NULL;
215 : }
216 0 : TALER_curl_easy_post_finished (&ah->post_ctx);
217 0 : GNUNET_free (ah->url);
218 0 : GNUNET_free (ah);
219 0 : }
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