diff options
Diffstat (limited to 'src/backenddb/plugin_merchantdb_postgres.c')
| -rw-r--r-- | src/backenddb/plugin_merchantdb_postgres.c | 250 |
1 files changed, 246 insertions, 4 deletions
diff --git a/src/backenddb/plugin_merchantdb_postgres.c b/src/backenddb/plugin_merchantdb_postgres.c index 45f02757..838a6897 100644 --- a/src/backenddb/plugin_merchantdb_postgres.c +++ b/src/backenddb/plugin_merchantdb_postgres.c @@ -111,7 +111,7 @@ struct PostgresClosure * @param cls the `struct PostgresClosure` with the plugin-specific state * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure */ -static int +static enum GNUNET_GenericReturnValue postgres_drop_tables (void *cls) { struct PostgresClosure *pc = cls; @@ -135,7 +135,7 @@ postgres_drop_tables (void *cls) * @param cls the `struct PostgresClosure` with the plugin-specific state * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure */ -static int +static enum GNUNET_GenericReturnValue postgres_create_tables (void *cls) { struct PostgresClosure *pc = cls; @@ -261,7 +261,7 @@ check_connection (struct PostgresClosure *pg) * must point to a constant * @return #GNUNET_OK on success */ -static int +static enum GNUNET_GenericReturnValue postgres_start (void *cls, const char *name) { @@ -297,7 +297,7 @@ postgres_start (void *cls, * must point to a constant * @return #GNUNET_OK on success */ -static int +static enum GNUNET_GenericReturnValue postgres_start_read_committed (void *cls, const char *name) { @@ -821,6 +821,210 @@ postgres_insert_account ( /** + * Closure for kyc_status_cb(). + */ +struct KycStatusContext +{ + /** + * Function to call with results. + */ + TALER_MERCHANTDB_KycCallback kyc_cb; + + /** + * Closure for @e kyc_cb. + */ + void *kyc_cb_cls; + + /** + * Filter, NULL to not filter. + */ + const struct GNUNET_HashCode *h_wire; + + /** + * Filter, NULL to not filter. + */ + const char *exchange_url; + + /** + * Number of results found. + */ + unsigned int count; + + /** + * Set to true on failure(s). + */ + bool failure; +}; + + +/** + * Function to be called with the results of a SELECT statement + * that has returned @a num_results results about accounts. + * + * @param[in,out] cls of type `struct KycStatusContext *` + * @param result the postgres result + * @param num_results the number of results in @a result + */ +static void +kyc_status_cb (void *cls, + PGresult *result, + unsigned int num_results) +{ + struct KycStatusContext *ksc = cls; + + for (unsigned int i = 0; i < num_results; i++) + { + struct GNUNET_HashCode h_wire; + uint64_t kyc_serial; + char *exchange_url; + char *payto_uri; + struct GNUNET_TIME_Absolute last_check; + uint8_t kyc_ok; + struct GNUNET_PQ_ResultSpec rs[] = { + GNUNET_PQ_result_spec_auto_from_type ("h_wire", + &h_wire), + GNUNET_PQ_result_spec_uint64 ("exchange_kyc_serial", + &kyc_serial), + GNUNET_PQ_result_spec_string ("payto_uri", + &payto_uri), + GNUNET_PQ_result_spec_string ("exchange_url", + &exchange_url), + GNUNET_PQ_result_spec_absolute_time ("kyc_timestamp", + &last_check), + GNUNET_PQ_result_spec_auto_from_type ("kyc_ok", + &kyc_ok), + GNUNET_PQ_result_spec_end + }; + + if (GNUNET_OK != + GNUNET_PQ_extract_result (result, + rs, + i)) + { + GNUNET_break (0); + ksc->failure = true; + return; + } + if ( (NULL != ksc->exchange_url) && + (0 != strcmp (ksc->exchange_url, + exchange_url)) ) + { + GNUNET_PQ_cleanup_result (rs); + continue; + } + if ( (NULL != ksc->h_wire) && + (0 != GNUNET_memcmp (ksc->h_wire, + &h_wire)) ) + { + GNUNET_PQ_cleanup_result (rs); + continue; + } + ksc->count++; + ksc->kyc_cb (ksc->kyc_cb_cls, + &h_wire, + kyc_serial, + payto_uri, + exchange_url, + last_check, + 0 != kyc_ok); + GNUNET_PQ_cleanup_result (rs); + } +} + + +/** + * Check an instance's account's KYC status. + * + * @param cls closure + * @param merchant_id merchant backend instance ID + * @param h_wire hash of the wire account to check, + * NULL to check all accounts of the merchant + * @param exchange_url base URL of the exchange to check, + * NULL to check all exchanges + * @param kyc_cb KYC status callback to invoke + * @param kyc_cb_cls closure for @a kyc_cb + * @return database result code + */ +static enum GNUNET_DB_QueryStatus +postgres_account_kyc_get_status (void *cls, + const char *merchant_id, + const struct GNUNET_HashCode *h_wire, + const char *exchange_url, + TALER_MERCHANTDB_KycCallback kyc_cb, + void *kyc_cb_cls) +{ + struct PostgresClosure *pg = cls; + struct KycStatusContext ksc = { + .kyc_cb = kyc_cb, + .kyc_cb_cls = kyc_cb_cls, + .exchange_url = exchange_url, + .h_wire = h_wire + }; + struct GNUNET_PQ_QueryParam params[] = { + GNUNET_PQ_query_param_string (merchant_id), + GNUNET_PQ_query_param_end + }; + enum GNUNET_DB_QueryStatus qs; + + check_connection (pg); + qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn, + "lookup_kyc_status", + params, + &kyc_status_cb, + &ksc); + if (ksc.failure) + { + GNUNET_break (0); + return GNUNET_DB_STATUS_HARD_ERROR; + } + if (0 > qs) + return qs; + return ksc.count; +} + + +/** + * Update an instance's account's KYC status. + * + * @param cls closure + * @param merchant_id merchant backend instance ID + * @param h_wire hash of the wire account to check + * @param exchange_url base URL of the exchange to check + * @param exchange_kyc_serial serial number for our account at the exchange (0 if unknown) + * @param kyc_ok current KYC status (true for satisfied) + * @return database result code + */ +static enum GNUNET_DB_QueryStatus +postgres_account_kyc_set_status ( + void *cls, + const char *merchant_id, + const struct GNUNET_HashCode *h_wire, + const char *exchange_url, + uint64_t exchange_kyc_serial, + bool kyc_ok) +{ + struct PostgresClosure *pg = cls; + uint8_t ok = kyc_ok; + struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get (); + struct GNUNET_PQ_QueryParam params[] = { + GNUNET_PQ_query_param_string (merchant_id), + GNUNET_PQ_query_param_auto_from_type (h_wire), + GNUNET_PQ_query_param_string (exchange_url), + GNUNET_PQ_query_param_uint64 (&exchange_kyc_serial), + GNUNET_PQ_query_param_absolute_time (&now), + GNUNET_PQ_query_param_auto_from_type (&ok), + GNUNET_PQ_query_param_end + }; + + check_connection (pg); + (void) GNUNET_TIME_round_abs (&now); + return GNUNET_PQ_eval_prepared_non_select (pg->conn, + "upsert_account_kyc", + params); +} + + +/** * Delete private key of an instance from our database. * * @param cls closure @@ -6637,6 +6841,40 @@ postgres_connect (void *cls) " FROM merchant_instances" " WHERE merchant_id=$2", 2), + /* for postgres_account_kyc_set_status */ + GNUNET_PQ_make_prepare ("upsert_account_kyc", + "INSERT INTO merchant_kyc" + "(kyc_timestamp" + ",kyc_ok" + ",exchange_kyc_serial" + ",account_serial" + ",exchange_url)" + " SELECT $5, $6, $4, account_serial, $3" + " FROM merchant_instances" + " JOIN merchant_accounts USING (merchant_serial)" + " WHERE merchant_id=$1" + " AND h_wire=$2" + " ON CONFLICT(account_serial,exchange_url) DO " + "UPDATE" + " SET exchange_kyc_serial=$4" + " ,kyc_ok=$6", + 6), + /* for postgres_account_kyc_get_status */ + GNUNET_PQ_make_prepare ("lookup_kyc_status", + "SELECT" + " h_wire" + ",exchange_kyc_serial" + ",payto_uri" + ",exchange_url" + ",kyc_timestamp" + ",kyc_ok" + " FROM merchant_instances" + " JOIN merchant_accounts" + " USING (merchant_serial)" + " JOIN merchant_kyc" + " USING (account_serial)" + " WHERE merchant_instances.merchant_id=$1", + 1), /* for postgres_insert_account() */ GNUNET_PQ_make_prepare ("insert_account", "INSERT INTO merchant_accounts" @@ -9091,6 +9329,10 @@ libtaler_plugin_merchantdb_postgres_init (void *cls) plugin->lookup_instance_auth = &postgres_lookup_instance_auth; plugin->insert_instance = &postgres_insert_instance; plugin->insert_account = &postgres_insert_account; + plugin->account_kyc_set_status + = &postgres_account_kyc_set_status; + plugin->account_kyc_get_status + = &postgres_account_kyc_get_status; plugin->delete_instance_private_key = &postgres_delete_instance_private_key; plugin->purge_instance = &postgres_purge_instance; plugin->update_instance = &postgres_update_instance; |