diff options
Diffstat (limited to 'src/backend/#taler-merchant-httpd_private-patch-templates-ID.c#')
-rw-r--r-- | src/backend/#taler-merchant-httpd_private-patch-templates-ID.c# | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/src/backend/#taler-merchant-httpd_private-patch-templates-ID.c# b/src/backend/#taler-merchant-httpd_private-patch-templates-ID.c# new file mode 100644 index 00000000..6739c7a9 --- /dev/null +++ b/src/backend/#taler-merchant-httpd_private-patch-templates-ID.c# @@ -0,0 +1,197 @@ +/* + This file is part of TALER + (C) 2022 Taler Systems SA + + TALER is free software; you can redistribute it and/or modify + it under the terms of the GNU Affero 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 taler-merchant-httpd_private-patch-templates-ID.c + * @brief implementing PATCH /templates/$ID request handling + * @author Priscilla HUANG + */ +#include "platform.h" +#include "taler-merchant-httpd_private-patch-templates-ID.h" +#include "taler-merchant-httpd_helper.h" +#include <taler/taler_json_lib.h> + + +/** + * How often do we retry the simple INSERT database transaction? + */ +#define MAX_RETRIES 3 + + +/** + * Determine the cause of the PATCH failure in more detail and report. + * + * @param connection connection to report on + * @param instance_id instance we are processing + * @param template_id ID of the product to patch + * @param tp template details we failed to set + */ +static MHD_RESULT +determine_cause (struct MHD_Connection *connection, + const char *instance_id, + const char *template_id, + const struct TALER_MERCHANTDB_TemplateDetails *tp) +{ + struct TALER_MERCHANTDB_TemplateDetails tpx; + enum GNUNET_DB_QueryStatus qs; + + qs = TMH_db->lookup_template (TMH_db->cls, + instance_id, + template_id, + &tpx); + switch (qs) + { + case GNUNET_DB_STATUS_HARD_ERROR: + GNUNET_break (0); + return TALER_MHD_reply_with_error (connection, + MHD_HTTP_INTERNAL_SERVER_ERROR, + TALER_EC_GENERIC_DB_FETCH_FAILED, + NULL); + case GNUNET_DB_STATUS_SOFT_ERROR: + GNUNET_break (0); + return TALER_MHD_reply_with_error (connection, + MHD_HTTP_INTERNAL_SERVER_ERROR, + TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE, + "unexpected serialization problem"); + case GNUNET_DB_STATUS_SUCCESS_NO_RESULTS: + return TALER_MHD_reply_with_error (connection, + MHD_HTTP_NOT_FOUND, + TALER_EC_MERCHANT_GENERIC_TEMPLATE_UNKNOWN, + template_id); + case GNUNET_DB_STATUS_SUCCESS_ONE_RESULT: + break; /* do below */ + } + + { + enum TALER_ErrorCode ec; + + ec = TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE; + TALER_MERCHANTDB_template_details_free (&tpx); + GNUNET_break (TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE != ec); + return TALER_MHD_reply_with_error (connection, + MHD_HTTP_CONFLICT, + ec, + NULL); + } +} + + +/** + * PATCH configuration of an existing instance, given its configuration. + * + * @param rh context of the handler + * @param connection the MHD connection to handle + * @param[in,out] hc context with further information about the request + * @return MHD result code + */ +MHD_RESULT +TMH_private_patch_templates_ID (const struct TMH_RequestHandler *rh, + struct MHD_Connection *connection, + struct TMH_HandlerContext *hc) +{ + struct TMH_MerchantInstance *mi = hc->instance; + const char *template_id = hc->infix; + struct TALER_MERCHANTDB_TemplateDetails tp = {0}; + enum GNUNET_DB_QueryStatus qs; + uint32_t pos_algorithm; + struct GNUNET_JSON_Specification spec[] = { + GNUNET_JSON_spec_string ("template_description", + (const char **) &tp.template_description), + GNUNET_JSON_spec_mark_optional ( + GNUNET_JSON_spec_uint32 ("pos_algorithm", + &pos_algorithm), + 0), + GNUNET_JSON_spec_mark_optional ( + GNUNET_JSON_spec_string ("pos_key", + (const char **) &tp.pos_key), + NULL), + GNUNET_JSON_spec_json ("template_contract", + &tp.template_contract), + GNUNET_JSON_spec_end () + }; + + GNUNET_assert (NULL != mi); + GNUNET_assert (NULL != template_id); + { + enum GNUNET_GenericReturnValue res; + + res = TALER_MHD_parse_json_data (connection, + hc->request_body, + spec); + if (GNUNET_OK != res) + return (GNUNET_NO == res) + ? MHD_YES + : MHD_NO; + } + + tp.pos_algorithm = (enum TALER_MerchantConfirmationAlgorithm) pos_algorithm; + if (! TMH_template_contract_valid (tp.template_contract)) + { + GNUNET_break_op (0); + GNUNET_JSON_parse_free (spec); + return TALER_MHD_reply_with_error (connection, + MHD_HTTP_BAD_REQUEST, + TALER_EC_GENERIC_PARAMETER_MALFORMED, + "template_contract"); + } + + qs = TMH_db->update_template (TMH_db->cls, + mi->settings.id, + template_id, + &tp); + { + MHD_RESULT ret = MHD_NO; + + switch (qs) + { + case GNUNET_DB_STATUS_HARD_ERROR: + GNUNET_break (0); + ret = TALER_MHD_reply_with_error (connection, + MHD_HTTP_INTERNAL_SERVER_ERROR, + TALER_EC_GENERIC_DB_STORE_FAILED, + NULL); + break; + case GNUNET_DB_STATUS_SOFT_ERROR: + GNUNET_break (0); + ret = TALER_MHD_reply_with_error (connection, + MHD_HTTP_INTERNAL_SERVER_ERROR, + TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE, + "unexpected serialization problem"); + break; + case GNUNET_DB_STATUS_SUCCESS_NO_RESULTS: + ret = determine_cause (connection, + mi->settings.id, + template_id, + &tp); + break; + case GNUNET_DB_STATUS_SUCCESS_ONE_RESULT: + ret = TALER_MHD_reply_static (connection, + MHD_HTTP_NO_CONTENT, + NULL, + NULL, + 0); + break; + } + GNUNET_JSON_parse_free (spec); + return ret; + } +} + + +/* end of taler-merchant-httpd_private-patch-templates-ID.c */ |