merchant

merchant_api_delete-management-instances-INSTANCE.c (7424B)

---

 /*
   This file is part of TALER
   Copyright (C) 2014-2026 Taler Systems SA
 
   TALER is free software; you can redistribute it and/or modify it under the
   terms of the GNU Lesser General Public License as published by the Free Software
   Foundation; either version 2.1, or (at your option) any later version.
 
   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
   A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License along with
   TALER; see the file COPYING.LGPL.  If not, see
   <http://www.gnu.org/licenses/>
 */
 /**
  * @file merchant_api_delete-management-instances-INSTANCE-new.c
  * @brief Implementation of the DELETE /management/instances/$INSTANCE request
  * @author Christian Grothoff
  */
 #include "taler/platform.h"
 #include <curl/curl.h>
 #include <jansson.h>
 #include <microhttpd.h> /* just for HTTP status codes */
 #include <gnunet/gnunet_util_lib.h>
 #include <gnunet/gnunet_curl_lib.h>
 #include <taler/taler-merchant/delete-management-instances-INSTANCE.h>
 #include "merchant_api_curl_defaults.h"
 #include <taler/taler_json_lib.h>
 #include "merchant_api_common.h"
 
 
 /**
  * Handle for a DELETE /management/instances/$INSTANCE operation.
  */
 struct TALER_MERCHANT_DeleteManagementInstanceHandle
 {
   /**
    * Base URL of the merchant backend.
    */
   char *base_url;
 
   /**
    * The full URL for this request.
    */
   char *url;
 
   /**
    * Handle for the request.
    */
   struct GNUNET_CURL_Job *job;
 
   /**
    * Function to call with the result.
    */
   TALER_MERCHANT_DeleteManagementInstanceCallback cb;
 
   /**
    * Closure for @a cb.
    */
   TALER_MERCHANT_DELETE_MANAGEMENT_INSTANCE_RESULT_CLOSURE *cb_cls;
 
   /**
    * Reference to the execution context.
    */
   struct GNUNET_CURL_Context *ctx;
 
   /**
    * Identifier of the instance to delete.
    */
   char *instance_id;
 
   /**
    * Whether to purge (hard delete) the instance.
    */
   bool purge;
 };
 
 
 /**
  * Function called when we're done processing the
  * HTTP DELETE /management/instances/$INSTANCE request.
  *
  * @param cls the `struct TALER_MERCHANT_DeleteManagementInstanceHandle`
  * @param response_code HTTP response code, 0 on error
  * @param response response body, NULL if not in JSON
  */
 static void
 handle_delete_instance_finished (void *cls,
                                  long response_code,
                                  const void *response)
 {
   struct TALER_MERCHANT_DeleteManagementInstanceHandle *dih = cls;
   const json_t *json = response;
   struct TALER_MERCHANT_DeleteManagementInstanceResponse dir = {
     .hr.http_status = (unsigned int) response_code,
     .hr.reply = json
   };
 
   dih->job = NULL;
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Got /management/instances/$INSTANCE DELETE response with status code %u\n",
               (unsigned int) response_code);
   switch (response_code)
   {
   case MHD_HTTP_NO_CONTENT:
     break;
   case MHD_HTTP_ACCEPTED:
     if (GNUNET_OK !=
         TALER_MERCHANT_parse_mfa_challenge_response_ (
           json,
           &dir.details.accepted))
     {
       GNUNET_break_op (0);
       dir.hr.http_status = 0;
       dir.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
     }
     break;
   case MHD_HTTP_UNAUTHORIZED:
     dir.hr.ec = TALER_JSON_get_error_code (json);
     dir.hr.hint = TALER_JSON_get_error_hint (json);
     break;
   case MHD_HTTP_NOT_FOUND:
     dir.hr.ec = TALER_JSON_get_error_code (json);
     dir.hr.hint = TALER_JSON_get_error_hint (json);
     break;
   case MHD_HTTP_CONFLICT:
     dir.hr.ec = TALER_JSON_get_error_code (json);
     dir.hr.hint = TALER_JSON_get_error_hint (json);
     break;
   default:
     dir.hr.ec = TALER_JSON_get_error_code (json);
     dir.hr.hint = TALER_JSON_get_error_hint (json);
     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                 "Unexpected response code %u/%d for DELETE /management/instances/$INSTANCE\n",
                 (unsigned int) response_code,
                 (int) dir.hr.ec);
     break;
   }
   dih->cb (dih->cb_cls,
            &dir);
   if (MHD_HTTP_ACCEPTED == response_code)
     TALER_MERCHANT_mfa_challenge_response_free (
       &dir.details.accepted);
   TALER_MERCHANT_delete_management_instance_cancel (dih);
 }
 
 
 struct TALER_MERCHANT_DeleteManagementInstanceHandle *
 TALER_MERCHANT_delete_management_instance_create (
   struct GNUNET_CURL_Context *ctx,
   const char *url,
   const char *instance_id)
 {
   struct TALER_MERCHANT_DeleteManagementInstanceHandle *dih;
 
   dih = GNUNET_new (struct TALER_MERCHANT_DeleteManagementInstanceHandle);
   dih->ctx = ctx;
   dih->base_url = GNUNET_strdup (url);
   if (NULL != instance_id)
     dih->instance_id = GNUNET_strdup (instance_id);
   return dih;
 }
 
 
 void
 TALER_MERCHANT_delete_management_instance_set_options_ (
   struct TALER_MERCHANT_DeleteManagementInstanceHandle *handle,
   unsigned int num_options,
   const struct TALER_MERCHANT_DeleteManagementInstanceOptionValue options[])
 {
   for (unsigned int i = 0; i < num_options; i++)
   {
     switch (options[i].option)
     {
     case TALER_MERCHANT_DELETE_MANAGEMENT_INSTANCE_OPTION_END:
       return;
     case TALER_MERCHANT_DELETE_MANAGEMENT_INSTANCE_OPTION_PURGE:
       handle->purge = true;
       break;
     }
   }
 }
 
 
 enum TALER_ErrorCode
 TALER_MERCHANT_delete_management_instance_start (
   struct TALER_MERCHANT_DeleteManagementInstanceHandle *dih,
   TALER_MERCHANT_DeleteManagementInstanceCallback cb,
   TALER_MERCHANT_DELETE_MANAGEMENT_INSTANCE_RESULT_CLOSURE *cb_cls)
 {
   CURL *eh;
 
   dih->cb = cb;
   dih->cb_cls = cb_cls;
   if (NULL != dih->instance_id)
   {
     char *path;
 
     GNUNET_asprintf (&path,
                      "management/instances/%s",
                      dih->instance_id);
     dih->url = TALER_url_join (dih->base_url,
                                path,
                                "purge",
                                (dih->purge) ? "yes" : NULL,
                                NULL);
     GNUNET_free (path);
   }
   else
   {
     /* backend_url is already identifying the instance */
     dih->url = TALER_url_join (dih->base_url,
                                "private",
                                "purge",
                                (dih->purge) ? "yes" : NULL,
                                NULL);
   }
   if (NULL == dih->url)
     return TALER_EC_GENERIC_CONFIGURATION_INVALID;
   eh = TALER_MERCHANT_curl_easy_get_ (dih->url);
   if (NULL == eh)
     return TALER_EC_GENERIC_CONFIGURATION_INVALID;
   GNUNET_assert (CURLE_OK ==
                  curl_easy_setopt (eh,
                                    CURLOPT_CUSTOMREQUEST,
                                    MHD_HTTP_METHOD_DELETE));
   dih->job = GNUNET_CURL_job_add (dih->ctx,
                                   eh,
                                   &handle_delete_instance_finished,
                                   dih);
   if (NULL == dih->job)
     return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
   return TALER_EC_NONE;
 }
 
 
 void
 TALER_MERCHANT_delete_management_instance_cancel (
   struct TALER_MERCHANT_DeleteManagementInstanceHandle *dih)
 {
   if (NULL != dih->job)
   {
     GNUNET_CURL_job_cancel (dih->job);
     dih->job = NULL;
   }
   GNUNET_free (dih->url);
   GNUNET_free (dih->instance_id);
   GNUNET_free (dih->base_url);
   GNUNET_free (dih);
 }
 
 
 /* end of merchant_api_delete-management-instances-INSTANCE-new.c */