commit 3d9b1a2af013b12929af8850ffa4618e5608ae3f
parent 52f50bed405b6048b7c81cb1645e3d536e272430
Author: bohdan-potuzhnyi <bohdan.potuzhnyi@gmail.com>
Date: Fri, 6 Dec 2024 09:20:50 +0100
adding new donau c-api
Diffstat:
2 files changed, 250 insertions(+), 1 deletion(-)
diff --git a/src/lib/Makefile.am b/src/lib/Makefile.am
@@ -84,7 +84,8 @@ libtalermerchant_la_LIBADD = \
if HAVE_DONAU
libtalermerchant_la_SOURCES += \
- merchant_api_get_donau_instance.c
+ merchant_api_get_donau_instance.c \
+ merchant_api_post_donau_instance.c
libtalermerchant_la_LIBADD += \
-ldonau
diff --git a/src/lib/merchant_api_post_donau_instance.c b/src/lib/merchant_api_post_donau_instance.c
@@ -0,0 +1,247 @@
+/*
+ This file is part of TALER
+ Copyright (C) 2024 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_post_donau_instance.c
+ * @brief Implementation of the POST /donau request
+ * of the merchant's HTTP API
+ * @author Bohdan Potuzhnyi
+ * @author Vlada Svirsh
+ */
+#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 "merchant_api_curl_defaults.h"
+#include "merchant_api_common.h"
+#include <taler/taler_json_lib.h>
+#include <taler/taler_signatures.h>
+#include <taler/taler_curl_lib.h>
+#include <taler/taler_kyclogic_lib.h>
+/* DONAU RELATED IMPORTS */
+#include "taler_merchant_donau.h"
+#include <donau/donau_service.h>
+
+
+/**
+ * Handle for a POST /donau operation.
+ */
+struct TALER_MERCHANT_DonauInstancePostHandle
+{
+ /**
+ * URL for this request.
+ */
+ char *url;
+
+ /**
+ * Handle for the CURL job.
+ */
+ struct GNUNET_CURL_Job *job;
+
+ /**
+ * Function to call with the result.
+ */
+ TALER_MERCHANT_DonauInstancePostCallback 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 the POST /donau operation is finished.
+ *
+ * @param cls the `struct TALER_MERCHANT_DonauInstancePostHandle`
+ * @param response_code HTTP response code, 0 on error
+ * @param response response body, NULL if not in JSON
+ */
+static void
+handle_post_donau_finished (void *cls,
+ long response_code,
+ const void *response)
+{
+ struct TALER_MERCHANT_DonauInstancePostHandle *dph = cls;
+ const json_t *json = response;
+ struct TALER_MERCHANT_HttpResponse hr = {
+ .http_status = (unsigned int) response_code,
+ .reply = json
+ };
+
+ dph->job = NULL;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ "POST /donau completed with response code %u\n",
+ (unsigned int) response_code);
+
+ switch (response_code)
+ {
+ case 0:
+ hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
+ break;
+ case MHD_HTTP_NO_CONTENT:
+ break;
+ case MHD_HTTP_BAD_REQUEST:
+ case MHD_HTTP_INTERNAL_SERVER_ERROR:
+ hr.ec = TALER_JSON_get_error_code (json);
+ hr.hint = TALER_JSON_get_error_hint (json);
+ break;
+ default:
+ TALER_MERCHANT_parse_error_details_ (json,
+ response_code,
+ &hr);
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Unexpected response code %u/%d\n",
+ (unsigned int) response_code,
+ (int) hr.ec);
+ break;
+ }
+
+ dph->cb (dph->cb_cls,
+ &hr);
+ TALER_MERCHANT_donau_instances_post_cancel (dph);
+}
+
+
+struct TALER_MERCHANT_DonauInstancePostHandle *
+TALER_MERCHANT_donau_instances_post (
+ struct GNUNET_CURL_Context *ctx,
+ const char *backend_url,
+ const struct TALER_MERCHANT_DONAU_Charity *charity,
+ const char *auth_token,
+ TALER_MERCHANT_DonauInstancePostCallback cb,
+ void *cb_cls)
+{
+ struct TALER_MERCHANT_DonauInstancePostHandle *dph;
+ json_t *req_obj;
+ json_t *auth_obj;
+
+ if (NULL != auth_token)
+ {
+ if (0 != strncasecmp (RFC_8959_PREFIX,
+ auth_token,
+ strlen (RFC_8959_PREFIX)))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Authentication token must start with `%s'\n",
+ RFC_8959_PREFIX);
+ return NULL;
+ }
+ auth_obj = GNUNET_JSON_PACK (
+ GNUNET_JSON_pack_string ("method",
+ "token"),
+ GNUNET_JSON_pack_string ("token",
+ auth_token));
+ }
+ else
+ {
+ auth_obj = GNUNET_JSON_PACK (
+ GNUNET_JSON_pack_string ("method",
+ "external"));
+ }
+ if (NULL == auth_obj)
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
+
+ req_obj = GNUNET_JSON_PACK (
+ GNUNET_JSON_pack_string ("donau_url",
+ charity->charity_url),
+ GNUNET_JSON_pack_string ("charity_name",
+ charity->name),
+ GNUNET_JSON_pack_data_auto ("charity_pub_key",
+ &charity->charity_pub),
+ GNUNET_JSON_pack_uint64 ("charity_id",
+ charity->charity_id),
+ TALER_JSON_pack_amount ("max_per_year",
+ &charity->max_per_year),
+ TALER_JSON_pack_amount ("receipts_to_date",
+ &charity->receipts_to_date),
+ GNUNET_JSON_pack_uint64 ("current_year",
+ charity->current_year)
+ );
+
+ dph = GNUNET_new (struct TALER_MERCHANT_DonauInstancePostHandle);
+ dph->ctx = ctx;
+ dph->cb = cb;
+ dph->cb_cls = cb_cls;
+ dph->url = TALER_url_join (backend_url,
+ "donau",
+ NULL);
+
+ if (NULL == dph->url)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Failed to construct request URL\n");
+ json_decref (req_obj);
+ GNUNET_free (dph);
+ return NULL;
+ }
+ {
+ CURL *eh;
+
+ eh = TALER_MERCHANT_curl_easy_get_(dph->url);
+ if (GNUNET_OK != TALER_curl_easy_post(&dph->post_ctx, eh, req_obj))
+ {
+ GNUNET_break(0);
+ curl_easy_cleanup(eh);
+ json_decref(req_obj);
+ GNUNET_free(dph);
+ return NULL;
+ }
+
+ json_decref(req_obj);
+
+ dph->job = GNUNET_CURL_job_add2(ctx,
+ eh,
+ dph->post_ctx.headers,
+ &handle_post_donau_finished,
+ dph);
+ }
+ return dph;
+}
+
+void
+TALER_MERCHANT_donau_instances_post_cancel (
+ struct TALER_MERCHANT_DonauInstancePostHandle *dph)
+{
+ if (NULL != dph->job)
+ {
+ GNUNET_CURL_job_cancel (dph->job);
+ dph->job = NULL;
+ }
+ TALER_curl_easy_post_finished (&dph->post_ctx);
+ GNUNET_free (dph->url);
+ GNUNET_free (dph);
+}
+
+/* end of merchant_api_post_donau_instance.c */
+\ No newline at end of file
