diff options
Diffstat (limited to 'src/lib/merchant_api_get_tokenfamily.c')
| -rw-r--r-- | src/lib/merchant_api_get_tokenfamily.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/src/lib/merchant_api_get_tokenfamily.c b/src/lib/merchant_api_get_tokenfamily.c new file mode 100644 index 00000000..d7e6b06e --- /dev/null +++ b/src/lib/merchant_api_get_tokenfamily.c @@ -0,0 +1,210 @@ +/* + This file is part of TALER + Copyright (C) 2014-2023 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_get_tokenfamily.c + * @brief Implementation of the GET /tokenfamily/$ID request of the merchant's HTTP API + * @author Christian Blättler + */ +#include "platform.h" +#include <curl/curl.h> +#include <gnunet/gnunet_common.h> +#include <gnunet/gnunet_json_lib.h> +#include <jansson.h> +#include <microhttpd.h> /* just for HTTP status codes */ +#include <gnunet/gnunet_util_lib.h> +#include <gnunet/gnunet_curl_lib.h> +#include "taler_merchant_service.h" +#include "merchant_api_curl_defaults.h" +#include <taler/taler_json_lib.h> +#include <taler/taler_signatures.h> + + +/** + * Handle for a GET /tokenfamilies/$SLUG operation. + */ +struct TALER_MERCHANT_TokenFamilyGetHandle +{ + /** + * The url for this request. + */ + char *url; + + /** + * Handle for the request. + */ + struct GNUNET_CURL_Job *job; + + /** + * Function to call with the result. + */ + TALER_MERCHANT_TokenFamilyGetCallback 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 /tokenfamilies/$ID request. + * + * @param cls the `struct TALER_MERCHANT_TokenFamilyGetHandle` + * @param response_code HTTP response code, 0 on error + * @param response response body, NULL if not in JSON + */ +static void +handle_get_token_family_finished (void *cls, + long response_code, + const void *response) +{ + struct TALER_MERCHANT_TokenFamilyGetHandle *handle = cls; + const json_t *json = response; + struct TALER_MERCHANT_TokenFamilyGetResponse res = { + .hr.http_status = (unsigned int) response_code, + .hr.reply = json + }; + + handle->job = NULL; + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Got /tokenfamilies/$ID response with status code %u\n", + (unsigned int) response_code); + switch (response_code) + { + case MHD_HTTP_OK: + { + // Parse token family response + struct GNUNET_JSON_Specification spec[] = { + GNUNET_JSON_spec_string ("slug", + &res.details.ok.slug), + GNUNET_JSON_spec_string ("name", + &res.details.ok.name), + GNUNET_JSON_spec_string ("description", + &res.details.ok.description), + GNUNET_JSON_spec_object_const ("description_i18n", + &res.details.ok.description_i18n), + GNUNET_JSON_spec_timestamp ("valid_after", + &res.details.ok.valid_after), + GNUNET_JSON_spec_timestamp ("valid_before", + &res.details.ok.valid_before), + GNUNET_JSON_spec_relative_time ("duation", + &res.details.ok.duration), + GNUNET_JSON_spec_string ("kind", + &res.details.ok.kind), + GNUNET_JSON_spec_uint64 ("issued", + &res.details.ok.issued), + GNUNET_JSON_spec_uint64 ("redeemed", + &res.details.ok.redeemed), + GNUNET_JSON_spec_end () + }; + + if (GNUNET_OK == + GNUNET_JSON_parse (json, + spec, + NULL, NULL)) + { + handle->cb (handle->cb_cls, + &res); + GNUNET_JSON_parse_free (spec); + TALER_MERCHANT_token_family_get_cancel (handle); + return; + } + res.hr.http_status = 0; + res.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE; + break; + } + case MHD_HTTP_UNAUTHORIZED: + res.hr.ec = TALER_JSON_get_error_code (json); + res.hr.hint = TALER_JSON_get_error_hint (json); + /* Nothing really to verify, merchant says we need to authenticate. */ + break; + case MHD_HTTP_NOT_FOUND: + res.hr.ec = TALER_JSON_get_error_code (json); + res.hr.hint = TALER_JSON_get_error_hint (json); + break; + default: + /* unexpected response code */ + res.hr.ec = TALER_JSON_get_error_code (json); + res.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) res.hr.ec); + break; + } +} + +struct TALER_MERCHANT_TokenFamilyGetHandle * +TALER_MERCHANT_token_family_get ( + struct GNUNET_CURL_Context *ctx, + const char *backend_url, + const char *token_family_slug, + TALER_MERCHANT_TokenFamilyGetCallback cb, + void *cb_cls) +{ + struct TALER_MERCHANT_TokenFamilyGetHandle *handle; + CURL *eh; + + handle = GNUNET_new (struct TALER_MERCHANT_TokenFamilyGetHandle); + handle->ctx = ctx; + handle->cb = cb; + handle->cb_cls = cb_cls; + { + char *path; + + GNUNET_asprintf (&path, + "private/tokenfamilies/%s", + token_family_slug); + handle->url = TALER_url_join (backend_url, + path, + NULL); + GNUNET_free (path); + } + if (NULL == handle->url) + { + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Could not construct request URL.\n"); + GNUNET_free (handle); + return NULL; + } + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Requesting URL '%s'\n", + handle->url); + eh = TALER_MERCHANT_curl_easy_get_ (handle->url); + handle->job = GNUNET_CURL_job_add (ctx, + eh, + &handle_get_token_family_finished, + handle); + return handle; +} + +void +TALER_MERCHANT_token_family_get_cancel ( + struct TALER_MERCHANT_TokenFamilyGetHandle *handle) +{ + if (NULL != handle->job) + GNUNET_CURL_job_cancel (handle->job); + GNUNET_free (handle->url); + GNUNET_free (handle); +}
\ No newline at end of file |