diff options
author | Jonathan Buchanan <jonathan.russ.buchanan@gmail.com> | 2020-06-04 12:51:52 -0400 |
---|---|---|
committer | Jonathan Buchanan <jonathan.russ.buchanan@gmail.com> | 2020-06-04 12:51:52 -0400 |
commit | a48cac99e4a950fbedae536b4dd964a34781ee10 (patch) | |
tree | 51c9032ab579b77b6cc94d38864064274025331e /src/lib/merchant_api_delete_reserve.c | |
parent | 03da63d8e21280de188c2d3baec078cf771fc4d7 (diff) | |
download | merchant-a48cac99e4a950fbedae536b4dd964a34781ee10.tar.gz merchant-a48cac99e4a950fbedae536b4dd964a34781ee10.tar.bz2 merchant-a48cac99e4a950fbedae536b4dd964a34781ee10.zip |
wrote method for delete reserve
Diffstat (limited to 'src/lib/merchant_api_delete_reserve.c')
-rw-r--r-- | src/lib/merchant_api_delete_reserve.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/src/lib/merchant_api_delete_reserve.c b/src/lib/merchant_api_delete_reserve.c new file mode 100644 index 00000000..e7652018 --- /dev/null +++ b/src/lib/merchant_api_delete_reserve.c @@ -0,0 +1,262 @@ +/* + 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_delete_reserve.c + * @brief Implementation of the DELETE /reserves/$RESERVE_PUB request of the merchant's HTTP API + * @author Jonathan Buchanan + */ + #include "platform.h" + #include <curl/curl.h> + #include <jansson.h> + #include <microhttpd.h> /* just for HTTP status codes */ + #include <gnunet/gnunet_util_lib.h> + #include <gnunet/gnunet_curl_lib.h> + #include "taler_merchant_service.h" + #include <taler/taler_json_lib.h> + #include <taler/taler_signatures.h> + + +/** + * Handle for a DELETE /reserves/$RESERVE_PUB operation. + */ +struct TALER_MERCHANT_ReserveDeleteHandle +{ + + /** + * The url for this request. + */ + char *url; + + /** + * Handle for the request. + */ + struct GNUNET_CURL_Job *job; + + /** + * Function to call with the result. + */ + TALER_MERCHANT_ReserveDeleteCallback 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 DELETE /reserves/$RESERVE_PUB request. + * + * @param cls the `struct TALER_MERCHANT_InstanceDeleteHandle` + * @param response_code HTTP response code, 0 on error + * @param json response body, NULL if not in JSON + */ +static void +handle_delete_reserve_finished (void *cls, + long response_code, + const void *response) +{ + struct TALER_MERCHANT_ReserveDeleteHandle *rdh = cls; + const json_t *json = response; + struct TALER_MERCHANT_HttpResponse hr = { + .http_status = (unsigned int) response_code, + .reply = json + }; + + rdh->job = NULL; + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Got /reserves/$ID response with status code %u\n", + (unsigned int) response_code); + switch (response_code) + { + case MHD_HTTP_NO_CONTENT: + break; + default: + /* unexpected response code */ + hr.ec = TALER_JSON_get_error_code (json); + 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) hr.ec); + break; + } + rdh->cb (rdh->cb_cls, + &hr); + TALER_MERCHANT_reserve_delete_cancel (rdh); +} + + +/** + * Delete the private key of a reserve. + * + * @param ctx the context + * @param backend_url HTTP base URL for the backend + * @param instance_id which instance should be deleted + * @param purge purge instead of just deleting + * @param instances_cb function to call with the + * backend's return + * @param instances_cb_cls closure for @a config_cb + * @return the instances handle; NULL upon error + */ +static struct TALER_MERCHANT_ReserveDeleteHandle * +reserve_delete (struct GNUNET_CURL_Context *ctx, + const char *backend_url, + const struct TALER_ReservePublicKeyP *reserve_pub, + bool purge, + TALER_MERCHANT_ReserveDeleteCallback cb, + void *cb_cls) +{ + struct TALER_MERCHANT_ReserveDeleteHandle *rdh; + + rdh = GNUNET_new (struct TALER_MERCHANT_ReserveDeleteHandle); + rdh->ctx = ctx; + rdh->cb = cb; + rdh->cb_cls = cb_cls; + { + char res_str[sizeof (*reserve_pub) * 2]; + char arg_str[sizeof (res_str) + 32]; + char *end; + + end = GNUNET_STRINGS_data_to_string (reserve_pub, + sizeof (*reserve_pub), + res_str, + sizeof (res_str)); + *end = '\0'; + GNUNET_snprintf (arg_str, + sizeof (arg_str), + "private/reserves/%s", + res_str); + if (purge) + rdh->url = TALER_url_join (backend_url, + arg_str, + "purge", + "yes", + NULL); + else + rdh->url = TALER_url_join (backend_url, + arg_str, + NULL); + } + if (NULL == rdh->url) + { + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Could not construct request URL.\n"); + GNUNET_free (rdh); + return NULL; + } + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Requesting URL '%s'\n", + rdh->url); + { + CURL *eh; + + eh = curl_easy_init (); + GNUNET_assert (CURLE_OK == + curl_easy_setopt (eh, + CURLOPT_URL, + rdh->url)); + GNUNET_assert (CURLE_OK == + curl_easy_setopt (eh, + CURLOPT_CUSTOMREQUEST, + MHD_HTTP_METHOD_DELETE)); + rdh->job = GNUNET_CURL_job_add (ctx, + eh, + GNUNET_YES, + &handle_delete_reserve_finished, + rdh); + } + return rdh; +} + + +/** + * Issue a DELETE /reserve/$RESERVE_ID request to the backend. Only + * deletes the private key of the reserve, preserves tipping data. + * + * @param ctx execution context + * @param backend_url base URL of the merchant backend + * @param reserve_pub which reserve should be queried + * @param cb function to call with the result + * @param cb_cls closure for @a cb + * @return handle for this operation, NULL upon errors + */ +struct TALER_MERCHANT_ReserveDeleteHandle * +TALER_MERCHANT_reserve_delete ( + struct GNUNET_CURL_Context *ctx, + const char *backend_url, + const struct TALER_ReservePublicKeyP *reserve_pub, + TALER_MERCHANT_ReserveDeleteCallback cb, + void *cb_cls) +{ + return reserve_delete (ctx, + backend_url, + reserve_pub, + false, + cb, + cb_cls); +} + + +/** + * Issue a DELETE /reserve/$RESERVE_ID request to the backend. + * Purges the reserve, deleting all associated data. DANGEROUS. + * + * @param ctx execution context + * @param backend_url base URL of the merchant backend + * @param reserve_pub which reserve should be queried + * @param cb function to call with the result + * @param cb_cls closure for @a cb + * @return handle for this operation, NULL upon errors + */ +struct TALER_MERCHANT_ReserveDeleteHandle * +TALER_MERCHANT_reserve_purge (struct GNUNET_CURL_Context *ctx, + const char *backend_url, + const struct TALER_ReservePublicKeyP *reserve_pub, + TALER_MERCHANT_ReserveDeleteCallback cb, + void *cb_cls) +{ + return reserve_delete (ctx, + backend_url, + reserve_pub, + true, + cb, + cb_cls); +} + + +/** + * Cancel a DELETE (or purge) /reserve/$RESERVE_ID request. + * + * @param rdh handle to the request to be canceled + */ +void +TALER_MERCHANT_reserve_delete_cancel ( + struct TALER_MERCHANT_ReserveDeleteHandle *rdh) +{ + if (NULL != rdh->job) + GNUNET_CURL_job_cancel (rdh->job); + GNUNET_free (rdh->url); + GNUNET_free (rdh); +} |