diff options
Diffstat (limited to 'src/exchange/taler-exchange-httpd_management_auditors.c')
| -rw-r--r-- | src/exchange/taler-exchange-httpd_management_auditors.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/src/exchange/taler-exchange-httpd_management_auditors.c b/src/exchange/taler-exchange-httpd_management_auditors.c new file mode 100644 index 000000000..7e0593534 --- /dev/null +++ b/src/exchange/taler-exchange-httpd_management_auditors.c @@ -0,0 +1,207 @@ +/* + This file is part of TALER + Copyright (C) 2020, 2021 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 Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License along with + TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> +*/ +/** + * @file taler-exchange-httpd_management_auditors.c + * @brief Handle request to add auditor. + * @author Christian Grothoff + */ +#include "platform.h" +#include <gnunet/gnunet_util_lib.h> +#include <gnunet/gnunet_json_lib.h> +#include <jansson.h> +#include <microhttpd.h> +#include <pthread.h> +#include "taler_json_lib.h" +#include "taler_mhd_lib.h" +#include "taler-exchange-httpd_management.h" +#include "taler-exchange-httpd_responses.h" +#include "taler-exchange-httpd_keys.h" + + +/** + * Closure for the #add_auditor transaction. + */ +struct AddAuditorContext +{ + /** + * Master signature to store. + */ + struct TALER_MasterSignatureP master_sig; + + /** + * Auditor public key this is about. + */ + struct TALER_AuditorPublicKeyP auditor_pub; + + /** + * Auditor URL this is about. + */ + const char *auditor_url; + + /** + * Human readable name of the auditor. + */ + const char *auditor_name; + + /** + * Timestamp for checking against replay attacks. + */ + struct GNUNET_TIME_Timestamp validity_start; + +}; + + +/** + * Function implementing database transaction to add an auditor. Runs the + * transaction logic; IF it returns a non-error code, the transaction logic + * MUST NOT queue a MHD response. IF it returns an hard error, the + * transaction logic MUST queue a MHD response and set @a mhd_ret. IF it + * returns the soft error code, the function MAY be called again to retry and + * MUST not queue a MHD response. + * + * @param cls closure with a `struct AddAuditorContext` + * @param connection MHD request which triggered the transaction + * @param[out] mhd_ret set to MHD response status for @a connection, + * if transaction failed (!) + * @return transaction status + */ +static enum GNUNET_DB_QueryStatus +add_auditor (void *cls, + struct MHD_Connection *connection, + MHD_RESULT *mhd_ret) +{ + struct AddAuditorContext *aac = cls; + struct GNUNET_TIME_Timestamp last_date; + enum GNUNET_DB_QueryStatus qs; + + qs = TEH_plugin->lookup_auditor_timestamp (TEH_plugin->cls, + &aac->auditor_pub, + &last_date); + if (qs < 0) + { + if (GNUNET_DB_STATUS_SOFT_ERROR == qs) + return qs; + GNUNET_break (0); + *mhd_ret = TALER_MHD_reply_with_error (connection, + MHD_HTTP_INTERNAL_SERVER_ERROR, + TALER_EC_GENERIC_DB_FETCH_FAILED, + "lookup auditor"); + return qs; + } + if ( (0 < qs) && + (GNUNET_TIME_timestamp_cmp (last_date, + >, + aac->validity_start) ) ) + { + *mhd_ret = TALER_MHD_reply_with_error ( + connection, + MHD_HTTP_CONFLICT, + TALER_EC_EXCHANGE_MANAGEMENT_AUDITOR_MORE_RECENT_PRESENT, + NULL); + return GNUNET_DB_STATUS_HARD_ERROR; + } + if (0 == qs) + qs = TEH_plugin->insert_auditor (TEH_plugin->cls, + &aac->auditor_pub, + aac->auditor_url, + aac->auditor_name, + aac->validity_start); + else + qs = TEH_plugin->update_auditor (TEH_plugin->cls, + &aac->auditor_pub, + aac->auditor_url, + aac->auditor_name, + aac->validity_start, + true); + if (qs < 0) + { + GNUNET_break (0); + if (GNUNET_DB_STATUS_SOFT_ERROR == qs) + return qs; + *mhd_ret = TALER_MHD_reply_with_error (connection, + MHD_HTTP_INTERNAL_SERVER_ERROR, + TALER_EC_GENERIC_DB_STORE_FAILED, + "add auditor"); + return qs; + } + TEH_keys_update_states (); + return qs; +} + + +MHD_RESULT +TEH_handler_management_auditors ( + struct MHD_Connection *connection, + const json_t *root) +{ + struct AddAuditorContext aac; + struct GNUNET_JSON_Specification spec[] = { + GNUNET_JSON_spec_fixed_auto ("master_sig", + &aac.master_sig), + GNUNET_JSON_spec_fixed_auto ("auditor_pub", + &aac.auditor_pub), + TALER_JSON_spec_web_url ("auditor_url", + &aac.auditor_url), + GNUNET_JSON_spec_string ("auditor_name", + &aac.auditor_name), + GNUNET_JSON_spec_timestamp ("validity_start", + &aac.validity_start), + GNUNET_JSON_spec_end () + }; + MHD_RESULT res; + enum GNUNET_GenericReturnValue ret; + + ret = TALER_MHD_parse_json_data (connection, + root, + spec); + if (GNUNET_SYSERR == ret) + return MHD_NO; /* hard failure */ + if (GNUNET_NO == ret) + return MHD_YES; /* failure */ + if (GNUNET_OK != + TALER_exchange_offline_auditor_add_verify ( + &aac.auditor_pub, + aac.auditor_url, + aac.validity_start, + &TEH_master_public_key, + &aac.master_sig)) + { + GNUNET_break_op (0); + return TALER_MHD_reply_with_error ( + connection, + MHD_HTTP_FORBIDDEN, + TALER_EC_EXCHANGE_MANAGEMENT_AUDITOR_ADD_SIGNATURE_INVALID, + NULL); + } + + ret = TEH_DB_run_transaction (connection, + "add auditor", + TEH_MT_REQUEST_OTHER, + &res, + &add_auditor, + &aac); + if (GNUNET_SYSERR == ret) + return res; + return TALER_MHD_reply_static ( + connection, + MHD_HTTP_NO_CONTENT, + NULL, + NULL, + 0); +} + + +/* end of taler-exchange-httpd_management_auditors.c */ |