diff options
| -rw-r--r-- | src/include/taler_merchant_service.h | 41 | ||||
| -rw-r--r-- | src/lib/Makefile.am | 1 | ||||
| -rw-r--r-- | src/lib/merchant_api_post_templates.c | 1 | ||||
| -rw-r--r-- | src/lib/merchant_api_post_using_templates.c | 227 |
4 files changed, 269 insertions, 1 deletions
diff --git a/src/include/taler_merchant_service.h b/src/include/taler_merchant_service.h index 09292c18..c5bef549 100644 --- a/src/include/taler_merchant_service.h +++ b/src/include/taler_merchant_service.h @@ -4370,6 +4370,47 @@ void TALER_MERCHANT_template_delete_cancel ( struct TALER_MERCHANT_TemplateDeleteHandle *tdh); +/** + * Function called with the result of the POST /using-templates operation. + * + * @param cls closure + * @param hr HTTP response details + */ +typedef void +(*TALER_MERCHANT_UsingTemplatesPostCallback)( + void *cls, + const struct TALER_MERCHANT_HttpResponse *hr); + +/** + * Make a POST /using-templates request to add an using template + * + * @param ctx the context + * @param backend_url HTTP base URL for the backend + * @param summary summary of the using template + * @param amount to pay given by the customer + * @param cb function to call with the backend's result + * @param cb_cls closure for @a cb + * @return the request handle; NULL upon error + */ +struct TALER_MERCHANT_UsingTemplatesPostHandle * +TALER_MERCHANT_using_templates_post ( + struct GNUNET_CURL_Context *ctx, + const char *backend_url, + const char *summary, + struct TALER_Amount amount, + TALER_MERCHANT_UsingTemplatesPostCallback cb, + void *cb_cls); + + +/** + * Cancel POST /using-templates operation. + * + * @param utph operation to cancel + */ +void +TALER_MERCHANT_using_templates_post_cancel ( + struct TALER_MERCHANT_UsingTemplatesPostHandle *utph); + /* ********************* /webhooks *********************** */ diff --git a/src/lib/Makefile.am b/src/lib/Makefile.am index 7d212c3b..7451b24d 100644 --- a/src/lib/Makefile.am +++ b/src/lib/Makefile.am @@ -58,6 +58,7 @@ libtalermerchant_la_SOURCES = \ merchant_api_post_reserves.c \ merchant_api_post_transfers.c \ merchant_api_post_templates.c \ + merchant_api_post_using_templates.c \ merchant_api_post_webhooks.c \ merchant_api_tip_authorize.c \ merchant_api_tip_pickup.c \ diff --git a/src/lib/merchant_api_post_templates.c b/src/lib/merchant_api_post_templates.c index 002896ed..300039a4 100644 --- a/src/lib/merchant_api_post_templates.c +++ b/src/lib/merchant_api_post_templates.c @@ -68,7 +68,6 @@ struct TALER_MERCHANT_TemplatesPostHandle * Minor context that holds body and headers. */ struct TALER_CURL_PostContext post_ctx; - }; diff --git a/src/lib/merchant_api_post_using_templates.c b/src/lib/merchant_api_post_using_templates.c new file mode 100644 index 00000000..278fcac8 --- /dev/null +++ b/src/lib/merchant_api_post_using_templates.c @@ -0,0 +1,227 @@ +/* + This file is part of TALER + Copyright (C) 2020-2021 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_using_templates.c + * @brief Implementation of the POST /using_templates request + * of the merchant's HTTP API + * @author Priscilla HUANG + */ +#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 <taler/taler_json_lib.h> +#include <taler/taler_curl_lib.h> + + +/** + * Handle for a POST /templates/$ID operation. + */ +struct TALER_MERCHANT_UsingTemplatesPostHandle +{ + + /** + * The url for this request. + */ + char *url; + + /** + * Handle for the request. + */ + struct GNUNET_CURL_Job *job; + + /** + * Function to call with the result. + */ + TALER_MERCHANT_UsingTemplatesPostCallback 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 /using-templates request. + * + * @param cls the `struct TALER_MERCHANT_UsingTemplatesPostHandle` + * @param response_code HTTP response code, 0 on error + * @param response response body, NULL if not in JSON + */ +static void +handle_post_using_templates_finished (void *cls, + long response_code, + const void *response) +{ + struct TALER_MERCHANT_UsingTemplatesPostHandle *utph = cls; + const json_t *json = response; + struct TALER_MERCHANT_HttpResponse hr = { + .http_status = (unsigned int) response_code, + .reply = json + }; + + utph->job = NULL; + GNUNET_log (GNUNET_ERROR_TYPE_INFO, + "POST /using-templates 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: + hr.ec = TALER_JSON_get_error_code (json); + hr.hint = TALER_JSON_get_error_hint (json); + /* 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_UNAUTHORIZED: + hr.ec = TALER_JSON_get_error_code (json); + hr.hint = TALER_JSON_get_error_hint (json); + /* Nothing really to verify, merchant says we need to authenticate. */ + 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); + /* Nothing really to verify, this should never + happen, we should pass the JSON reply to the + application */ + break; + case MHD_HTTP_CONFLICT: + 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; + } /* end of the switch */ + utph->cb (utph->cb_cls, + &hr); + TALER_MERCHANT_using_templates_post_cancel (utph); +} + + +struct TALER_MERCHANT_UsingTemplatesPostHandle * +TALER_MERCHANT_using_templates_post ( + struct GNUNET_CURL_Context *ctx, + const char *backend_url, + const char *summary, + struct TALER_Amount amount, + TALER_MERCHANT_UsingTemplatesPostCallback cb, + void *cb_cls) +{ + struct TALER_MERCHANT_UsingTemplatesPostHandle *utph; + json_t *req_obj; + + req_obj = GNUNET_JSON_PACK ( + GNUNET_JSON_pack_allow_null ( + GNUNET_JSON_pack_string ("summary", + summary)), + GNUNET_JSON_pack_allow_null ( + TALER_JSON_pack_amount ("amount", + &amount))); + utph = GNUNET_new (struct TALER_MERCHANT_UsingTemplatesPostHandle); + utph->ctx = ctx; + utph->cb = cb; + utph->cb_cls = cb_cls; + utph->url = TALER_url_join (backend_url, + "/templates", + NULL); + if (NULL == utph->url) + { + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Could not construct request URL.\n"); + json_decref (req_obj); + GNUNET_free (utph); + return NULL; + } + { + CURL *eh; + + eh = TALER_MERCHANT_curl_easy_get_ (utph->url); + GNUNET_assert (GNUNET_OK == + TALER_curl_easy_post (&utph->post_ctx, + eh, + req_obj)); + json_decref (req_obj); + utph->job = GNUNET_CURL_job_add2 (ctx, + eh, + utph->post_ctx.headers, + &handle_post_using_templates_finished, + utph); + GNUNET_assert (NULL != utph->job); + } + return utph; +} + + +void +TALER_MERCHANT_using_templates_post_cancel ( + struct TALER_MERCHANT_UsingTemplatesPostHandle *utph) +{ + if (NULL != utph->job) + { + GNUNET_CURL_job_cancel (utph->job); + utph->job = NULL; + } + TALER_curl_easy_post_finished (&utph->post_ctx); + GNUNET_free (utph->url); + GNUNET_free (utph); +} + + +/* end of merchant_api_post_using_templates.c */ |