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/*
This file is part of TALER
Copyright (C) 2020 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 lib/merchant_api_delete_order.c
* @brief Implementation of the DELETE /orders/$ORDER_ID request of the merchant's HTTP API
* @author Jonathan Buchanan
*/
#include "platform.h"
#include <curl/curl.h>
#include <jansson.h>
#include <microhttpd.h> /* just for HTTP status codes */
#include <gnunet/gnunet_util_lib.h>
#include <gnunet/gnunet_curl_lib.h>
#include "taler_merchant_service.h"
#include <taler/taler_json_lib.h>
#include <taler/taler_signatures.h>
/**
* Handle for a DELETE /orders/$ID operation.
*/
struct TALER_MERCHANT_OrderDeleteHandle
{
/**
* The url for this request.
*/
char *url;
/**
* Handle for the request.
*/
struct GNUNET_CURL_Job *job;
/**
* Function to call with the result.
*/
TALER_MERCHANT_OrderDeleteCallback cb;
/**
* Closure for @a cb.
*/
void *cb_cls;
/**
* Reference to the execution context.
*/
struct GNUNET_CURL_Context *ctx;
};
/**
* Function called when we're done processing the
* HTTP DELETE /orders/$ORDER_ID request.
*
* @param cls the `struct TALER_MERCHANT_OrderDeleteHandle`
* @param response_code HTTP response code, 0 on error
* @param json response body, NULL if not in JSON
*/
static void
handle_delete_order_finished (void *cls,
long response_code,
const void *response)
{
struct TALER_MERCHANT_OrderDeleteHandle *odh = cls;
struct TALER_MERCHANT_HttpResponse hr = {
.http_status = (unsigned int) response_code,
.reply = NULL,
};
odh->job = NULL;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Got /orders/$ID response with status code %u\n",
(unsigned int) response_code);
switch (response_code)
{
case MHD_HTTP_NO_CONTENT:
break;
case MHD_HTTP_NOT_FOUND:
break;
case MHD_HTTP_CONFLICT:
break;
default:
/* unexpected response code */
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u\n",
(unsigned int) response_code);
break;
}
odh->cb (odh->cb_cls,
&hr);
TALER_MERCHANT_order_delete_cancel (odh);
}
/**
* Make a DELETE /orders/$ID request to delete a order from our
* inventory.
*
* @param ctx the context
* @param backend_url HTTP base URL for the backend
* @param order_id identifier of the order
* @param cb function to call with the backend's deletion status
* @param cb_cls closure for @a cb
* @return the request handle; NULL upon error
*/
struct TALER_MERCHANT_OrderDeleteHandle *
TALER_MERCHANT_order_delete (
struct GNUNET_CURL_Context *ctx,
const char *backend_url,
const char *order_id,
TALER_MERCHANT_OrderDeleteCallback cb,
void *cb_cls)
{
struct TALER_MERCHANT_OrderDeleteHandle *odh;
odh = GNUNET_new (struct TALER_MERCHANT_OrderDeleteHandle);
odh->ctx = ctx;
odh->cb = cb;
odh->cb_cls = cb_cls;
{
char *path;
GNUNET_asprintf (&path,
"private/orders/%s",
order_id);
odh->url = TALER_url_join (backend_url,
path,
NULL);
GNUNET_free (path);
}
if (NULL == odh->url)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Could not construct request url.\n");
GNUNET_free (odh);
return NULL;
}
{
CURL *eh;
eh = curl_easy_init ();
GNUNET_assert (CURLE_OK ==
curl_easy_setopt (eh,
CURLOPT_URL,
odh->url));
GNUNET_assert (CURLE_OK ==
curl_easy_setopt (eh,
CURLOPT_CUSTOMREQUEST,
MHD_HTTP_METHOD_DELETE));
odh->job = GNUNET_CURL_job_add (ctx,
eh,
&handle_delete_order_finished,
odh);
}
return odh;
}
/**
* Cancel DELETE /orders/$ID operation.
*
* @param odh operation to cancel
*/
void
TALER_MERCHANT_order_delete_cancel (
struct TALER_MERCHANT_OrderDeleteHandle *odh)
{
if (NULL != odh->job)
GNUNET_CURL_job_cancel (odh->job);
GNUNET_free (odh->url);
GNUNET_free (odh);
}
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