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_delete-private-webhooks-WEBHOOK_ID-new.c
19 : * @brief Implementation of the DELETE /private/webhooks/$WEBHOOK_ID request
20 : * @author Christian Grothoff
21 : */
22 : #include "taler/platform.h"
23 : #include <curl/curl.h>
24 : #include <jansson.h>
25 : #include <microhttpd.h> /* just for HTTP status codes */
26 : #include <gnunet/gnunet_util_lib.h>
27 : #include <gnunet/gnunet_curl_lib.h>
28 : #include <taler/merchant/delete-private-webhooks-WEBHOOK_ID.h>
29 : #include "merchant_api_curl_defaults.h"
30 : #include <taler/taler_json_lib.h>
31 :
32 :
33 : /**
34 : * Handle for a DELETE /private/webhooks/$WEBHOOK_ID operation.
35 : */
36 : struct TALER_MERCHANT_DeletePrivateWebhookHandle
37 : {
38 : /**
39 : * Base URL of the merchant backend.
40 : */
41 : char *base_url;
42 :
43 : /**
44 : * The full URL for this request.
45 : */
46 : char *url;
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_MERCHANT_DeletePrivateWebhookCallback cb;
57 :
58 : /**
59 : * Closure for @a cb.
60 : */
61 : TALER_MERCHANT_DELETE_PRIVATE_WEBHOOK_RESULT_CLOSURE *cb_cls;
62 :
63 : /**
64 : * Reference to the execution context.
65 : */
66 : struct GNUNET_CURL_Context *ctx;
67 :
68 : /**
69 : * Identifier of the webhook to delete.
70 : */
71 : char *webhook_id;
72 : };
73 :
74 :
75 : /**
76 : * Function called when we're done processing the
77 : * HTTP DELETE /private/webhooks/$WEBHOOK_ID request.
78 : *
79 : * @param cls the `struct TALER_MERCHANT_DeletePrivateWebhookHandle`
80 : * @param response_code HTTP response code, 0 on error
81 : * @param response response body, NULL if not in JSON
82 : */
83 : static void
84 0 : handle_delete_webhook_finished (void *cls,
85 : long response_code,
86 : const void *response)
87 : {
88 0 : struct TALER_MERCHANT_DeletePrivateWebhookHandle *dwh = cls;
89 0 : const json_t *json = response;
90 0 : struct TALER_MERCHANT_DeletePrivateWebhookResponse dwr = {
91 0 : .hr.http_status = (unsigned int) response_code,
92 : .hr.reply = json
93 : };
94 :
95 0 : dwh->job = NULL;
96 0 : GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
97 : "Got /private/webhooks/$WEBHOOK_ID DELETE response with status code %u\n",
98 : (unsigned int) response_code);
99 0 : switch (response_code)
100 : {
101 0 : case MHD_HTTP_NO_CONTENT:
102 0 : break;
103 0 : case MHD_HTTP_UNAUTHORIZED:
104 0 : dwr.hr.ec = TALER_JSON_get_error_code (json);
105 0 : dwr.hr.hint = TALER_JSON_get_error_hint (json);
106 : /* Nothing really to verify, merchant says we need to authenticate. */
107 0 : break;
108 0 : case MHD_HTTP_NOT_FOUND:
109 0 : dwr.hr.ec = TALER_JSON_get_error_code (json);
110 0 : dwr.hr.hint = TALER_JSON_get_error_hint (json);
111 0 : break;
112 0 : default:
113 0 : dwr.hr.ec = TALER_JSON_get_error_code (json);
114 0 : dwr.hr.hint = TALER_JSON_get_error_hint (json);
115 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
116 : "Unexpected response code %u/%d for DELETE /private/webhooks/$WEBHOOK_ID\n",
117 : (unsigned int) response_code,
118 : (int) dwr.hr.ec);
119 0 : break;
120 : }
121 0 : dwh->cb (dwh->cb_cls,
122 : &dwr);
123 0 : TALER_MERCHANT_delete_private_webhook_cancel (dwh);
124 0 : }
125 :
126 :
127 : struct TALER_MERCHANT_DeletePrivateWebhookHandle *
128 0 : TALER_MERCHANT_delete_private_webhook_create (
129 : struct GNUNET_CURL_Context *ctx,
130 : const char *url,
131 : const char *webhook_id)
132 : {
133 : struct TALER_MERCHANT_DeletePrivateWebhookHandle *dwh;
134 :
135 0 : dwh = GNUNET_new (struct TALER_MERCHANT_DeletePrivateWebhookHandle);
136 0 : dwh->ctx = ctx;
137 0 : dwh->base_url = GNUNET_strdup (url);
138 0 : dwh->webhook_id = GNUNET_strdup (webhook_id);
139 0 : return dwh;
140 : }
141 :
142 :
143 : enum TALER_ErrorCode
144 0 : TALER_MERCHANT_delete_private_webhook_start (
145 : struct TALER_MERCHANT_DeletePrivateWebhookHandle *dwh,
146 : TALER_MERCHANT_DeletePrivateWebhookCallback cb,
147 : TALER_MERCHANT_DELETE_PRIVATE_WEBHOOK_RESULT_CLOSURE *cb_cls)
148 : {
149 : CURL *eh;
150 :
151 0 : dwh->cb = cb;
152 0 : dwh->cb_cls = cb_cls;
153 : {
154 : char *path;
155 :
156 0 : GNUNET_asprintf (&path,
157 : "private/webhooks/%s",
158 : dwh->webhook_id);
159 0 : dwh->url = TALER_url_join (dwh->base_url,
160 : path,
161 : NULL);
162 0 : GNUNET_free (path);
163 : }
164 0 : if (NULL == dwh->url)
165 0 : return TALER_EC_GENERIC_CONFIGURATION_INVALID;
166 0 : eh = TALER_MERCHANT_curl_easy_get_ (dwh->url);
167 0 : if (NULL == eh)
168 0 : return TALER_EC_GENERIC_CONFIGURATION_INVALID;
169 0 : GNUNET_assert (CURLE_OK ==
170 : curl_easy_setopt (eh,
171 : CURLOPT_CUSTOMREQUEST,
172 : MHD_HTTP_METHOD_DELETE));
173 0 : dwh->job = GNUNET_CURL_job_add (dwh->ctx,
174 : eh,
175 : &handle_delete_webhook_finished,
176 : dwh);
177 0 : if (NULL == dwh->job)
178 0 : return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
179 0 : return TALER_EC_NONE;
180 : }
181 :
182 :
183 : void
184 0 : TALER_MERCHANT_delete_private_webhook_cancel (
185 : struct TALER_MERCHANT_DeletePrivateWebhookHandle *dwh)
186 : {
187 0 : if (NULL != dwh->job)
188 : {
189 0 : GNUNET_CURL_job_cancel (dwh->job);
190 0 : dwh->job = NULL;
191 : }
192 0 : GNUNET_free (dwh->url);
193 0 : GNUNET_free (dwh->base_url);
194 0 : GNUNET_free (dwh->webhook_id);
195 0 : GNUNET_free (dwh);
196 0 : }
197 :
198 :
199 : /* end of merchant_api_delete-private-webhooks-WEBHOOK_ID-new.c */
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