diff options
Diffstat (limited to 'src/lib/exchange_api_management_post_extensions.c')
| -rw-r--r-- | src/lib/exchange_api_management_post_extensions.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/src/lib/exchange_api_management_post_extensions.c b/src/lib/exchange_api_management_post_extensions.c new file mode 100644 index 000000000..00d1c5e3f --- /dev/null +++ b/src/lib/exchange_api_management_post_extensions.c @@ -0,0 +1,213 @@ +/* + This file is part of TALER + Copyright (C) 2015-2023 Taler Systems SA + + TALER is free software; you can redistribute it and/or modify it under the + terms of the GNU General Public License as published by the Free Software + Foundation; either version 3, 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 General Public License for more details. + + You should have received a copy of the GNU General Public License along with + TALER; see the file COPYING. If not, see + <http://www.gnu.org/licenses/> + */ +/** + * @file lib/exchange_api_management_post_extensions.c + * @brief functions to handle the settings for extensions (p2p and age restriction) + * @author Özgür Kesim + */ +#include "platform.h" +#include "taler_json_lib.h" +#include <gnunet/gnunet_curl_lib.h> +#include "taler_extensions.h" +#include "exchange_api_curl_defaults.h" +#include "taler_exchange_service.h" +#include "taler_signatures.h" +#include "taler_curl_lib.h" +#include "taler_json_lib.h" + + +/** + * @brief Handle for a POST /management/extensions request. + */ +struct TALER_EXCHANGE_ManagementPostExtensionsHandle +{ + + /** + * The url for this request. + */ + char *url; + + /** + * Minor context that holds body and headers. + */ + struct TALER_CURL_PostContext post_ctx; + + /** + * Handle for the request. + */ + struct GNUNET_CURL_Job *job; + + /** + * Function to call with the result. + */ + TALER_EXCHANGE_ManagementPostExtensionsCallback 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 POST /management/extensions request. + * + * @param cls the `struct TALER_EXCHANGE_ManagementPostExtensionsHandle *` + * @param response_code HTTP response code, 0 on error + * @param response response body, NULL if not in JSON + */ +static void +handle_post_extensions_finished (void *cls, + long response_code, + const void *response) +{ + struct TALER_EXCHANGE_ManagementPostExtensionsHandle *ph = cls; + const json_t *json = response; + struct TALER_EXCHANGE_ManagementPostExtensionsResponse per = { + .hr.http_status = (unsigned int) response_code, + .hr.reply = json + }; + + ph->job = NULL; + switch (response_code) + { + case MHD_HTTP_NO_CONTENT: + break; + case MHD_HTTP_FORBIDDEN: + per.hr.ec = TALER_JSON_get_error_code (json); + per.hr.hint = TALER_JSON_get_error_hint (json); + break; + case MHD_HTTP_NOT_FOUND: + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Server did not find handler at `%s'. Did you configure the correct exchange base URL?\n", + ph->url); + if (NULL != json) + { + per.hr.ec = TALER_JSON_get_error_code (json); + per.hr.hint = TALER_JSON_get_error_hint (json); + } + else + { + per.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE; + per.hr.hint = TALER_ErrorCode_get_hint (per.hr.ec); + } + break; + default: + /* unexpected response code */ + GNUNET_break_op (0); + per.hr.ec = TALER_JSON_get_error_code (json); + per.hr.hint = TALER_JSON_get_error_hint (json); + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Unexpected response code %u/%d for exchange management post extensions\n", + (unsigned int) response_code, + (int) per.hr.ec); + break; + } + if (NULL != ph->cb) + { + ph->cb (ph->cb_cls, + &per); + ph->cb = NULL; + } + TALER_EXCHANGE_management_post_extensions_cancel (ph); +} + + +struct TALER_EXCHANGE_ManagementPostExtensionsHandle * +TALER_EXCHANGE_management_post_extensions ( + struct GNUNET_CURL_Context *ctx, + const char *url, + const struct TALER_EXCHANGE_ManagementPostExtensionsData *ped, + TALER_EXCHANGE_ManagementPostExtensionsCallback cb, + void *cb_cls) +{ + struct TALER_EXCHANGE_ManagementPostExtensionsHandle *ph; + CURL *eh = NULL; + json_t *body = NULL; + + ph = GNUNET_new (struct TALER_EXCHANGE_ManagementPostExtensionsHandle); + ph->cb = cb; + ph->cb_cls = cb_cls; + ph->ctx = ctx; + ph->url = TALER_url_join (url, + "management/extensions", + NULL); + if (NULL == ph->url) + { + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Could not construct request URL.\n"); + GNUNET_free (ph); + return NULL; + } + + body = GNUNET_JSON_PACK ( + GNUNET_JSON_pack_object_steal ("extensions", + (json_t *) ped->extensions), + GNUNET_JSON_pack_data_auto ("extensions_sig", + &ped->extensions_sig)); + + eh = TALER_EXCHANGE_curl_easy_get_ (ph->url); + if ( (NULL == eh) || + (GNUNET_OK != + TALER_curl_easy_post (&ph->post_ctx, + eh, + body)) ) + { + GNUNET_break (0); + if (NULL != eh) + curl_easy_cleanup (eh); + json_decref (body); + GNUNET_free (ph->url); + return NULL; + } + json_decref (body); + GNUNET_log (GNUNET_ERROR_TYPE_INFO, + "Requesting URL '%s'\n", + ph->url); + ph->job = GNUNET_CURL_job_add2 (ctx, + eh, + ph->post_ctx.headers, + &handle_post_extensions_finished, + ph); + if (NULL == ph->job) + { + TALER_EXCHANGE_management_post_extensions_cancel (ph); + return NULL; + } + return ph; +} + + +void +TALER_EXCHANGE_management_post_extensions_cancel ( + struct TALER_EXCHANGE_ManagementPostExtensionsHandle *ph) +{ + if (NULL != ph->job) + { + GNUNET_CURL_job_cancel (ph->job); + ph->job = NULL; + } + TALER_curl_easy_post_finished (&ph->post_ctx); + GNUNET_free (ph->url); + GNUNET_free (ph); +} |