merchant_api_delete_otp_device.c (5158B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2022 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_otp_device.c 19 * @brief Implementation of the DELETE /otp-devices/$ID request of the merchant's HTTP API 20 * @author Christian Grothoff 21 */ 22 #include "platform.h" 23 #include <curl/curl.h> 24 #include <jansson.h> 25 #include <microhttpd.h> /* just for HTTP status codes */ 26 #include <gnunet/gnunet_util_lib.h> 27 #include <gnunet/gnunet_curl_lib.h> 28 #include "taler_merchant_service.h" 29 #include "merchant_api_curl_defaults.h" 30 #include <taler/taler_json_lib.h> 31 #include <taler/taler_signatures.h> 32 33 34 /** 35 * Handle for a DELETE /otp-devices/$ID operation. 36 */ 37 struct TALER_MERCHANT_OtpDeviceDeleteHandle 38 { 39 /** 40 * The url for this request. 41 */ 42 char *url; 43 44 /** 45 * Handle for the request. 46 */ 47 struct GNUNET_CURL_Job *job; 48 49 /** 50 * Function to call with the result. 51 */ 52 TALER_MERCHANT_OtpDeviceDeleteCallback cb; 53 54 /** 55 * Closure for @a cb. 56 */ 57 void *cb_cls; 58 59 /** 60 * Reference to the execution context. 61 */ 62 struct GNUNET_CURL_Context *ctx; 63 64 }; 65 66 67 /** 68 * Function called when we're done processing the 69 * HTTP GET /otp-devices/$ID request. 70 * 71 * @param cls the `struct TALER_MERCHANT_OtpDeviceDeleteHandle` 72 * @param response_code HTTP response code, 0 on error 73 * @param response response body, NULL if not in JSON 74 */ 75 static void 76 handle_delete_otp_device_finished (void *cls, 77 long response_code, 78 const void *response) 79 { 80 struct TALER_MERCHANT_OtpDeviceDeleteHandle *tdh = cls; 81 const json_t *json = response; 82 struct TALER_MERCHANT_HttpResponse hr = { 83 .http_status = (unsigned int) response_code, 84 .reply = json 85 }; 86 87 tdh->job = NULL; 88 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 89 "Got DELETE /otp-devices/$ID response with status code %u\n", 90 (unsigned int) response_code); 91 switch (response_code) 92 { 93 case MHD_HTTP_NO_CONTENT: 94 break; 95 case MHD_HTTP_UNAUTHORIZED: 96 hr.ec = TALER_JSON_get_error_code (json); 97 hr.hint = TALER_JSON_get_error_hint (json); 98 /* Nothing really to verify, merchant says we need to authenticate. */ 99 break; 100 case MHD_HTTP_NOT_FOUND: 101 hr.ec = TALER_JSON_get_error_code (json); 102 hr.hint = TALER_JSON_get_error_hint (json); 103 break; 104 case MHD_HTTP_CONFLICT: 105 hr.ec = TALER_JSON_get_error_code (json); 106 hr.hint = TALER_JSON_get_error_hint (json); 107 break; 108 default: 109 /* unexpected response code */ 110 hr.ec = TALER_JSON_get_error_code (json); 111 hr.hint = TALER_JSON_get_error_hint (json); 112 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 113 "Unexpected response code %u/%d\n", 114 (unsigned int) response_code, 115 (int) hr.ec); 116 break; 117 } 118 tdh->cb (tdh->cb_cls, 119 &hr); 120 TALER_MERCHANT_otp_device_delete_cancel (tdh); 121 } 122 123 124 struct TALER_MERCHANT_OtpDeviceDeleteHandle * 125 TALER_MERCHANT_otp_device_delete ( 126 struct GNUNET_CURL_Context *ctx, 127 const char *backend_url, 128 const char *otp_device_id, 129 TALER_MERCHANT_OtpDeviceDeleteCallback cb, 130 void *cb_cls) 131 { 132 struct TALER_MERCHANT_OtpDeviceDeleteHandle *tdh; 133 134 tdh = GNUNET_new (struct TALER_MERCHANT_OtpDeviceDeleteHandle); 135 tdh->ctx = ctx; 136 tdh->cb = cb; 137 tdh->cb_cls = cb_cls; 138 { 139 char *path; 140 141 GNUNET_asprintf (&path, 142 "private/otp-devices/%s", 143 otp_device_id); 144 tdh->url = TALER_url_join (backend_url, 145 path, 146 NULL); 147 GNUNET_free (path); 148 } 149 if (NULL == tdh->url) 150 { 151 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 152 "Could not construct request URL.\n"); 153 GNUNET_free (tdh); 154 return NULL; 155 } 156 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 157 "Requesting URL '%s'\n", 158 tdh->url); 159 { 160 CURL *eh; 161 162 eh = TALER_MERCHANT_curl_easy_get_ (tdh->url); 163 GNUNET_assert (CURLE_OK == 164 curl_easy_setopt (eh, 165 CURLOPT_CUSTOMREQUEST, 166 MHD_HTTP_METHOD_DELETE)); 167 tdh->job = GNUNET_CURL_job_add (ctx, 168 eh, 169 &handle_delete_otp_device_finished, 170 tdh); 171 } 172 return tdh; 173 } 174 175 176 void 177 TALER_MERCHANT_otp_device_delete_cancel ( 178 struct TALER_MERCHANT_OtpDeviceDeleteHandle *tdh) 179 { 180 if (NULL != tdh->job) 181 GNUNET_CURL_job_cancel (tdh->job); 182 GNUNET_free (tdh->url); 183 GNUNET_free (tdh); 184 }