[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[taler-merchant] 30/277: implement POST /products//lock
From: |
gnunet |
Subject: |
[taler-merchant] 30/277: implement POST /products//lock |
Date: |
Sun, 05 Jul 2020 20:49:03 +0200 |
This is an automated email from the git hooks/post-receive script.
grothoff pushed a commit to branch master
in repository merchant.
commit fffe2bd5556c05b597ce2b003e5c787500d4b64b
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Tue Apr 21 19:45:08 2020 +0200
implement POST /products//lock
---
src/include/taler_merchant_service.h | 1 +
src/lib/Makefile.am | 1 +
src/lib/merchant_api_lock_product.c | 274 +++++++++++++++++++++++++++++++++++
3 files changed, 276 insertions(+)
diff --git a/src/include/taler_merchant_service.h
b/src/include/taler_merchant_service.h
index 54a53c1..a450c6e 100644
--- a/src/include/taler_merchant_service.h
+++ b/src/include/taler_merchant_service.h
@@ -1032,6 +1032,7 @@ TALER_MERCHANT_product_lock (
const char *backend_url,
const char *instance_id,
const char *product_id,
+ const struct GNUNET_Uuid *uuid,
struct GNUNET_TIME_Relative duration,
uint32_t quantity,
TALER_MERCHANT_ProductLockCallback cb,
diff --git a/src/lib/Makefile.am b/src/lib/Makefile.am
index efcea87..a3bcbf1 100644
--- a/src/lib/Makefile.am
+++ b/src/lib/Makefile.am
@@ -26,6 +26,7 @@ libtalermerchant_la_SOURCES = \
merchant_api_get_instances.c \
merchant_api_get_product.c \
merchant_api_get_products.c \
+ merchant_api_lock_product.c \
merchant_api_patch_instance.c \
merchant_api_patch_product.c \
merchant_api_post_instances.c \
diff --git a/src/lib/merchant_api_lock_product.c
b/src/lib/merchant_api_lock_product.c
new file mode 100644
index 0000000..ddd5e8e
--- /dev/null
+++ b/src/lib/merchant_api_lock_product.c
@@ -0,0 +1,274 @@
+/*
+ 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_lock_product.c
+ * @brief Implementation of the POST /products/$ID/lock request
+ * of the merchant's HTTP API
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <curl/curl.h>
+#include <jansson.h>
+#include <microhttpd.h> /* just for HTTP status codes */
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_merchant_service.h"
+#include <taler/taler_json_lib.h>
+#include <taler/taler_curl_lib.h>
+
+
+/**
+ * Handle for a POST /products/$ID/lock operation.
+ */
+struct TALER_MERCHANT_ProductLockHandle
+{
+
+ /**
+ * The url for this request.
+ */
+ char *url;
+
+ /**
+ * Handle for the request.
+ */
+ struct GNUNET_CURL_Job *job;
+
+ /**
+ * Function to call with the result.
+ */
+ TALER_MERCHANT_ProductLockCallback cb;
+
+ /**
+ * Closure for @a cb.
+ */
+ void *cb_cls;
+
+ /**
+ * Reference to the execution context.
+ */
+ struct GNUNET_CURL_Context *ctx;
+
+ /**
+ * Minor context that holds body and headers.
+ */
+ struct TALER_CURL_PostContext post_ctx;
+
+};
+
+
+/**
+ * Function called when we're done processing the
+ * HTTP POST /products/$ID/lock request.
+ *
+ * @param cls the `struct TALER_MERCHANT_ProductLockHandle`
+ * @param response_code HTTP response code, 0 on error
+ * @param json response body, NULL if not in JSON
+ */
+static void
+handle_lock_product_finished (void *cls,
+ long response_code,
+ const void *response)
+{
+ struct TALER_MERCHANT_ProductLockHandle *plh = cls;
+ const json_t *json = response;
+ struct TALER_MERCHANT_HttpResponse hr = {
+ .http_status = (unsigned int) response_code,
+ .reply = json
+ };
+
+ plh->job = NULL;
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ "LOCK /products/$ID completed with response code %u\n",
+ (unsigned int) response_code);
+ switch (response_code)
+ {
+ case 0:
+ hr.ec = TALER_EC_INVALID_RESPONSE;
+ break;
+ case MHD_HTTP_NO_CONTENT:
+ break;
+ case MHD_HTTP_BAD_REQUEST:
+ hr.ec = TALER_JSON_get_error_code (json);
+ hr.hint = TALER_JSON_get_error_hint (json);
+ GNUNET_break_op (0);
+ /* This should never happen, either us
+ * or the merchant is buggy (or API version conflict);
+ * just pass JSON reply to the application */
+ break;
+ case MHD_HTTP_FORBIDDEN:
+ hr.ec = TALER_JSON_get_error_code (json);
+ hr.hint = TALER_JSON_get_error_hint (json);
+ /* Nothing really to verify, merchant says we tried to abort the payment
+ * after it was successful. We should pass the JSON reply to the
+ * application */
+ 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_GONE:
+ hr.ec = TALER_JSON_get_error_code (json);
+ hr.hint = TALER_JSON_get_error_hint (json);
+ break;
+ case MHD_HTTP_INTERNAL_SERVER_ERROR:
+ hr.ec = TALER_JSON_get_error_code (json);
+ hr.hint = TALER_JSON_get_error_hint (json);
+ /* Server had an internal issue; we should retry,
+ but this API leaves this to the application */
+ break;
+ default:
+ TALER_MERCHANT_parse_error_details_ (json,
+ response_code,
+ &hr);
+ /* unexpected response code */
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Unexpected response code %u/%d\n",
+ (unsigned int) response_code,
+ (int) hr.ec);
+ GNUNET_break_op (0);
+ break;
+ }
+ plh->cb (plh->cb_cls,
+ &hr);
+ TALER_MERCHANT_product_lock_cancel (plh);
+}
+
+
+/**
+ * Make a POST /products/$ID/lock request to reserve a certain
+ * amount of product in inventory to a reservation UUID.
+ *
+ * @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 uuid UUID that identifies the client holding the lock
+ * @param duration how long should the lock be held
+ * @param quantity how much product should be locked
+ * @param cb function to call with the backend's lock status
+ * @param cb_cls closure for @a cb
+ * @return the request handle; NULL upon error
+ */
+struct TALER_MERCHANT_ProductLockHandle *
+TALER_MERCHANT_product_lock (
+ struct GNUNET_CURL_Context *ctx,
+ const char *backend_url,
+ const char *instance_id,
+ const char *product_id,
+ const struct GNUNET_Uuid *uuid,
+ struct GNUNET_TIME_Relative duration,
+ uint32_t quantity,
+ TALER_MERCHANT_ProductLockCallback cb,
+ void *cb_cls)
+{
+ struct TALER_MERCHANT_ProductLockHandle *plh;
+ json_t *req_obj;
+
+ req_obj = json_pack ("{s:o, s:o, s:I}",
+ "lock_uuid",
+ GNUNET_JSON_from_data_auto (uuid),
+ "duration",
+ GNUNET_JSON_from_time_rel (duration),
+ "quantity",
+ (json_int_t) quantity);
+ if (NULL == req_obj)
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
+ plh = GNUNET_new (struct TALER_MERCHANT_ProductLockHandle);
+ plh->ctx = ctx;
+ plh->cb = cb;
+ plh->cb_cls = cb_cls;
+ {
+ char *path;
+
+ if (NULL == instance_id)
+ GNUNET_asprintf (&path,
+ "products/%s/lock",
+ product_id);
+ else
+ GNUNET_asprintf (&path,
+ "instances/%s/products/%s/lock",
+ instance_id,
+ product_id);
+ plh->url = TALER_url_join (backend_url,
+ path,
+ NULL);
+ GNUNET_free (path);
+ }
+ if (NULL == plh->url)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Could not construct request URL.\n");
+ json_decref (req_obj);
+ GNUNET_free (plh);
+ return NULL;
+ }
+ {
+ CURL *eh;
+
+ eh = curl_easy_init ();
+ if (GNUNET_OK !=
+ TALER_curl_easy_post (&plh->post_ctx,
+ eh,
+ req_obj))
+ {
+ GNUNET_break (0);
+ json_decref (req_obj);
+ GNUNET_free (plh);
+ return NULL;
+ }
+
+ json_decref (req_obj);
+ GNUNET_assert (CURLE_OK == curl_easy_setopt (eh,
+ CURLOPT_URL,
+ plh->url));
+ plh->job = GNUNET_CURL_job_add2 (ctx,
+ eh,
+ plh->post_ctx.headers,
+ &handle_lock_product_finished,
+ plh);
+ }
+ return plh;
+}
+
+
+/**
+ * Cancel POST /products/$ID/lock request. Must not be called by clients after
+ * the callback was invoked.
+ *
+ * @param plh request to cancel.
+ */
+void
+TALER_MERCHANT_product_lock_cancel (
+ struct TALER_MERCHANT_ProductLockHandle *plh)
+{
+ if (NULL != plh->job)
+ {
+ GNUNET_CURL_job_cancel (plh->job);
+ plh->job = NULL;
+ }
+ TALER_curl_easy_post_finished (&plh->post_ctx);
+ GNUNET_free (plh->url);
+ GNUNET_free (plh);
+}
+
+
+/* end of merchant_api_lock_product.c */
--
To stop receiving notification emails like this one, please contact
gnunet@gnunet.org.
- [taler-merchant] 12/277: start on DELETE instance, (continued)
- [taler-merchant] 12/277: start on DELETE instance, gnunet, 2020/07/05
- [taler-merchant] 10/277: implement POST /instances, gnunet, 2020/07/05
- [taler-merchant] 14/277: implement PATCH, gnunet, 2020/07/05
- [taler-merchant] 13/277: implement DELETE /instances/$ID, gnunet, 2020/07/05
- [taler-merchant] 18/277: implement POST products/lock, gnunet, 2020/07/05
- [taler-merchant] 15/277: implement GET /products, gnunet, 2020/07/05
- [taler-merchant] 17/277: implement PATCH handlers, gnunet, 2020/07/05
- [taler-merchant] 19/277: backenddb implementation work, gnunet, 2020/07/05
- [taler-merchant] 23/277: specify remaining /instance API, gnunet, 2020/07/05
- [taler-merchant] 26/277: implement GET /products, gnunet, 2020/07/05
- [taler-merchant] 30/277: implement POST /products//lock,
gnunet <=
- [taler-merchant] 21/277: simplifying SQL, gnunet, 2020/07/05
- [taler-merchant] 16/277: work on delete/get products by ID, gnunet, 2020/07/05
- [taler-merchant] 20/277: squealing, gnunet, 2020/07/05
- [taler-merchant] 25/277: finish patch, gnunet, 2020/07/05
- [taler-merchant] 24/277: implement POST /instances, gnunet, 2020/07/05
- [taler-merchant] 29/277: implement POST /products, gnunet, 2020/07/05
- [taler-merchant] 28/277: implement PATCH /products/, gnunet, 2020/07/05
- [taler-merchant] 22/277: work on /products and /instances C API, gnunet, 2020/07/05
- [taler-merchant] 31/277: implemenet DELETE /products/, gnunet, 2020/07/05
- [taler-merchant] 27/277: implement GET /products/, gnunet, 2020/07/05