From 2056bc82f9aac337a9c7683cdb0aa43debd4d50c Mon Sep 17 00:00:00 2001 From: Christian Grothoff Date: Fri, 29 Jul 2022 09:57:10 +0200 Subject: expand taler-exchange-offline and libtalerexchange with management-drain-profits implementation (#4960) --- src/lib/Makefile.am | 1 + src/lib/exchange_api_management_drain_profits.c | 213 ++++++++++++++++++++++++ 2 files changed, 214 insertions(+) create mode 100644 src/lib/exchange_api_management_drain_profits.c (limited to 'src/lib') diff --git a/src/lib/Makefile.am b/src/lib/Makefile.am index 76157c43a..6adaac387 100644 --- a/src/lib/Makefile.am +++ b/src/lib/Makefile.am @@ -39,6 +39,7 @@ libtalerexchange_la_SOURCES = \ exchange_api_link.c \ exchange_api_management_auditor_disable.c \ exchange_api_management_auditor_enable.c \ + exchange_api_management_drain_profits.c \ exchange_api_management_get_keys.c \ exchange_api_management_post_keys.c \ exchange_api_management_post_extensions.c \ diff --git a/src/lib/exchange_api_management_drain_profits.c b/src/lib/exchange_api_management_drain_profits.c new file mode 100644 index 000000000..9cf1af85e --- /dev/null +++ b/src/lib/exchange_api_management_drain_profits.c @@ -0,0 +1,213 @@ +/* + This file is part of TALER + Copyright (C) 2020-2022 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 + +*/ +/** + * @file lib/exchange_api_management_drain_profits.c + * @brief functions to set wire fees at an exchange + * @author Christian Grothoff + */ +#include "platform.h" +#include "taler_json_lib.h" +#include +#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" + + +struct TALER_EXCHANGE_ManagementDrainProfitsHandle +{ + + /** + * 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_ManagementDrainProfitsCallback 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 /management/drain request. + * + * @param cls the `struct TALER_EXCHANGE_ManagementDrainProfitsHandle *` + * @param response_code HTTP response code, 0 on error + * @param response response body, NULL if not in JSON + */ +static void +handle_drain_profits_finished (void *cls, + long response_code, + const void *response) +{ + struct TALER_EXCHANGE_ManagementDrainProfitsHandle *dp = cls; + const json_t *json = response; + struct TALER_EXCHANGE_HttpResponse hr = { + .http_status = (unsigned int) response_code, + .reply = json + }; + + dp->job = NULL; + switch (response_code) + { + case MHD_HTTP_NO_CONTENT: + break; + case MHD_HTTP_FORBIDDEN: + hr.ec = TALER_JSON_get_error_code (json); + hr.hint = TALER_JSON_get_error_hint (json); + 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_PRECONDITION_FAILED: + hr.ec = TALER_JSON_get_error_code (json); + hr.hint = TALER_JSON_get_error_hint (json); + break; + default: + /* unexpected response code */ + GNUNET_break_op (0); + 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 for exchange management drain profits\n", + (unsigned int) response_code, + (int) hr.ec); + break; + } + if (NULL != dp->cb) + { + dp->cb (dp->cb_cls, + &hr); + dp->cb = NULL; + } + TALER_EXCHANGE_management_drain_profits_cancel (dp); +} + + +struct TALER_EXCHANGE_ManagementDrainProfitsHandle * +TALER_EXCHANGE_management_drain_profits ( + struct GNUNET_CURL_Context *ctx, + const char *url, + const struct TALER_WireTransferIdentifierRawP *wtid, + const struct TALER_Amount *amount, + struct GNUNET_TIME_Timestamp date, + const char *account_section, + const char *payto_uri, + const struct TALER_MasterSignatureP *master_sig, + TALER_EXCHANGE_ManagementDrainProfitsCallback cb, + void *cb_cls) +{ + struct TALER_EXCHANGE_ManagementDrainProfitsHandle *dp; + CURL *eh; + json_t *body; + + dp = GNUNET_new (struct TALER_EXCHANGE_ManagementDrainProfitsHandle); + dp->cb = cb; + dp->cb_cls = cb_cls; + dp->ctx = ctx; + dp->url = TALER_url_join (url, + "management/drain", + NULL); + if (NULL == dp->url) + { + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Could not construct request URL.\n"); + GNUNET_free (dp); + return NULL; + } + body = GNUNET_JSON_PACK ( + GNUNET_JSON_pack_string ("debit_account_section", + account_section), + GNUNET_JSON_pack_string ("credit_payto_uri", + payto_uri), + GNUNET_JSON_pack_data_auto ("wtid", + wtid), + GNUNET_JSON_pack_data_auto ("master_sig", + master_sig), + GNUNET_JSON_pack_timestamp ("date", + date), + TALER_JSON_pack_amount ("amount", + amount)); + eh = TALER_EXCHANGE_curl_easy_get_ (dp->url); + if ( (NULL == eh) || + (GNUNET_OK != + TALER_curl_easy_post (&dp->post_ctx, + eh, + body)) ) + { + GNUNET_break (0); + if (NULL != eh) + curl_easy_cleanup (eh); + json_decref (body); + GNUNET_free (dp->url); + return NULL; + } + json_decref (body); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Requesting URL '%s'\n", + dp->url); + dp->job = GNUNET_CURL_job_add2 (ctx, + eh, + dp->post_ctx.headers, + &handle_drain_profits_finished, + dp); + if (NULL == dp->job) + { + TALER_EXCHANGE_management_drain_profits_cancel (dp); + return NULL; + } + return dp; +} + + +void +TALER_EXCHANGE_management_drain_profits_cancel ( + struct TALER_EXCHANGE_ManagementDrainProfitsHandle *dp) +{ + if (NULL != dp->job) + { + GNUNET_CURL_job_cancel (dp->job); + dp->job = NULL; + } + TALER_curl_easy_post_finished (&dp->post_ctx); + GNUNET_free (dp->url); + GNUNET_free (dp); +} -- cgit v1.2.3