From 7aaeee0914057eeb64bf6af80b54d7d9e58d1b39 Mon Sep 17 00:00:00 2001 From: Christian Grothoff Date: Tue, 21 Apr 2020 19:46:36 +0200 Subject: implemenet DELETE /products/ --- src/lib/merchant_api_delete_product.c | 209 ++++++++++++++++++++++++++++++++++ 1 file changed, 209 insertions(+) create mode 100644 src/lib/merchant_api_delete_product.c (limited to 'src/lib/merchant_api_delete_product.c') diff --git a/src/lib/merchant_api_delete_product.c b/src/lib/merchant_api_delete_product.c new file mode 100644 index 00000000..e00f0a34 --- /dev/null +++ b/src/lib/merchant_api_delete_product.c @@ -0,0 +1,209 @@ +/* + This file is part of TALER + Copyright (C) 2014-2018, 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 + +*/ +/** + * @file lib/merchant_api_delete_product.c + * @brief Implementation of the DELETE /product/$ID request of the merchant's HTTP API + * @author Christian Grothoff + */ +#include "platform.h" +#include +#include +#include /* just for HTTP status codes */ +#include +#include +#include "taler_merchant_service.h" +#include +#include + + +/** + * Handle for a DELETE /products/$ID operation. + */ +struct TALER_MERCHANT_ProductDeleteHandle +{ + /** + * The url for this request. + */ + char *url; + + /** + * Handle for the request. + */ + struct GNUNET_CURL_Job *job; + + /** + * Function to call with the result. + */ + TALER_MERCHANT_ProductDeleteCallback 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 GET /products/$ID request. + * + * @param cls the `struct TALER_MERCHANT_ProductDeleteHandle` + * @param response_code HTTP response code, 0 on error + * @param json response body, NULL if not in JSON + */ +static void +handle_delete_product_finished (void *cls, + long response_code, + const void *response) +{ + struct TALER_MERCHANT_ProductDeleteHandle *pdh = cls; + const json_t *json = response; + struct TALER_MERCHANT_HttpResponse hr = { + .http_status = (unsigned int) response_code, + .reply = json + }; + + pdh->job = NULL; + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Got /products/$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: + hr.ec = TALER_JSON_get_error_code (json); + hr.hint = TALER_JSON_get_error_hint (json); + break; + case MHD_HTTP_CONFLICT: + hr.ec = TALER_JSON_get_error_code (json); + hr.hint = TALER_JSON_get_error_hint (json); + break; + default: + /* unexpected response code */ + hr.ec = TALER_JSON_get_error_code (json); + hr.hint = TALER_JSON_get_error_hint (json); + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Unexpected response code %u/%d\n", + (unsigned int) response_code, + (int) hr.ec); + break; + } + pdh->cb (pdh->cb_cls, + &hr); + TALER_MERCHANT_product_delete_cancel (pdh); +} + + +/** + * Make a DELETE /products/$ID request to delete a product from our + * inventory. + * + * @param ctx the context + * @param backend_url HTTP base URL for the backend + * @param instance_id instance to query about its products, + * NULL to query the default instance + * @param product_id identifier of the product + * @param cb function to call with the backend's deletion status + * @param cb_cls closure for @a cb + * @return the request handle; NULL upon error + */ +struct TALER_MERCHANT_ProductDeleteHandle * +TALER_MERCHANT_product_delete ( + struct GNUNET_CURL_Context *ctx, + const char *backend_url, + const char *instance_id, + const char *product_id, + TALER_MERCHANT_ProductDeleteCallback cb, + void *cb_cls) +{ + struct TALER_MERCHANT_ProductDeleteHandle *pdh; + + pdh = GNUNET_new (struct TALER_MERCHANT_ProductDeleteHandle); + pdh->ctx = ctx; + pdh->cb = cb; + pdh->cb_cls = cb_cls; + { + char *path; + + if (NULL == instance_id) + GNUNET_asprintf (&path, + "products/%s", + product_id); + else + GNUNET_asprintf (&path, + "instances/%s/products/%s", + instance_id, + product_id); + pdh->url = TALER_url_join (backend_url, + path, + NULL); + GNUNET_free (path); + } + if (NULL == pdh->url) + { + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Could not construct request URL.\n"); + GNUNET_free (pdh); + return NULL; + } + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Requesting URL '%s'\n", + pdh->url); + { + CURL *eh; + + eh = curl_easy_init (); + GNUNET_assert (CURLE_OK == + curl_easy_setopt (eh, + CURLOPT_URL, + pdh->url)); + GNUNET_assert (CURLE_OK == + curl_easy_setopt (eh, + CURLOPT_CUSTOMREQUEST, + MHD_HTTP_METHOD_DELETE)); + pdh->job = GNUNET_CURL_job_add (ctx, + eh, + GNUNET_YES, + &handle_delete_product_finished, + pdh); + } + return pdh; +} + + +/** + * Cancel DELETE /product/$ID request. Must not be called by clients after + * the callback was invoked. + * + * @param pdh request to cancel. + */ +void +TALER_MERCHANT_product_delete_cancel ( + struct TALER_MERCHANT_ProductDeleteHandle *pdh) +{ + if (NULL != pdh->job) + GNUNET_CURL_job_cancel (pdh->job); + GNUNET_free (pdh->url); + GNUNET_free (pdh); +} -- cgit v1.2.3