merchant

Merchant backend to process payments, run by merchants
Log | Files | Refs | Submodules | README | LICENSE

plugin_merchantdb_postgres.c (27679B)


      1 /*
      2   This file is part of TALER
      3   (C) 2014--2025 Taler Systems SA
      4 
      5   TALER is free software; you can redistribute it and/or modify it under the
      6   terms of the GNU Lesser General Public License as published by the Free Software
      7   Foundation; either version 3, or (at your option) any later version.
      8 
      9   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
     10   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
     11   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
     12 
     13   You should have received a copy of the GNU General Public License along with
     14   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
     15 */
     16 /**
     17  * @file plugin_merchantdb_postgres.c
     18  * @brief database helper functions for postgres used by the merchant
     19  * @author Sree Harsha Totakura <sreeharsha@totakura.in>
     20  * @author Christian Grothoff
     21  * @author Marcello Stanisci
     22  * @author Priscilla Huang
     23  * @author Iván Ávalos
     24  */
     25 #include "taler/platform.h"
     26 #include <gnunet/gnunet_util_lib.h>
     27 #include <gnunet/gnunet_pq_lib.h>
     28 #include <taler/taler_util.h>
     29 #include <taler/taler_pq_lib.h>
     30 #include <taler/taler_json_lib.h>
     31 #include <taler/taler_mhd_lib.h>
     32 #include "taler/taler_merchantdb_plugin.h"
     33 #include "pg_helper.h"
     34 #include "pg_gc.h"
     35 #include "pg_insert_otp.h"
     36 #include "pg_account_kyc_get_outdated.h"
     37 #include "pg_get_kyc_status.h"
     38 #include "pg_get_kyc_limits.h"
     39 #include "pg_delete_otp.h"
     40 #include "pg_update_otp.h"
     41 #include "pg_account_kyc_set_failed.h"
     42 #include "pg_select_otp.h"
     43 #include "pg_select_otp_serial.h"
     44 #include "pg_insert_login_token.h"
     45 #include "pg_delete_login_token.h"
     46 #include "pg_select_login_token.h"
     47 #include "pg_lookup_login_tokens.h"
     48 #include "pg_insert_account.h"
     49 #include "pg_update_account.h"
     50 #include "pg_lookup_instances.h"
     51 #include "pg_lookup_transfers.h"
     52 #include "pg_lookup_pending_deposits.h"
     53 #include "pg_lookup_categories.h"
     54 #include "pg_insert_unclaim_signature.h"
     55 #include "pg_lookup_reconciliation_details.h"
     56 #include "pg_lookup_expected_transfer.h"
     57 #include "pg_lookup_categories_by_ids.h"
     58 #include "pg_lookup_units.h"
     59 #include "pg_lookup_custom_units_by_names.h"
     60 #include "pg_select_category.h"
     61 #include "pg_update_category.h"
     62 #include "pg_insert_category.h"
     63 #include "pg_delete_category.h"
     64 #include "pg_select_unit.h"
     65 #include "pg_insert_unit.h"
     66 #include "pg_update_unit.h"
     67 #include "pg_delete_unit.h"
     68 #include "pg_insert_report.h"
     69 #include "pg_delete_report.h"
     70 #include "pg_update_report.h"
     71 #include "pg_check_report.h"
     72 #include "pg_select_reports.h"
     73 #include "pg_lookup_reports_pending.h"
     74 #include "pg_update_report_status.h"
     75 #include "pg_select_report.h"
     76 #include "pg_insert_product_group.h"
     77 #include "pg_delete_product_group.h"
     78 #include "pg_update_product_group.h"
     79 #include "pg_select_product_groups.h"
     80 #include "pg_insert_money_pot.h"
     81 #include "pg_delete_money_pot.h"
     82 #include "pg_update_money_pot.h"
     83 #include "pg_check_money_pots.h"
     84 #include "pg_select_money_pots.h"
     85 #include "pg_select_money_pot.h"
     86 #include "pg_update_wirewatch_progress.h"
     87 #include "pg_select_wirewatch_accounts.h"
     88 #include "pg_select_open_transfers.h"
     89 #include "pg_delete_exchange_accounts.h"
     90 #include "pg_select_exchanges.h"
     91 #include "pg_select_accounts_by_exchange.h"
     92 #include "pg_insert_exchange_account.h"
     93 #include "pg_lookup_instance_auth.h"
     94 #include "pg_lookup_otp_devices.h"
     95 #include "pg_update_transfer_status.h"
     96 #include "pg_lookup_mfa_challenge.h"
     97 #include "pg_solve_mfa_challenge.h"
     98 #include "pg_update_mfa_challenge.h"
     99 #include "pg_create_mfa_challenge.h"
    100 #include "pg_finalize_transfer_status.h"
    101 #include "pg_insert_instance.h"
    102 #include "pg_account_kyc_set_status.h"
    103 #include "pg_account_kyc_get_status.h"
    104 #include "pg_delete_instance_private_key.h"
    105 #include "pg_select_category_by_name.h"
    106 #include "pg_purge_instance.h"
    107 #include "pg_update_instance.h"
    108 #include "pg_update_instance_auth.h"
    109 #include "pg_inactivate_account.h"
    110 #include "pg_activate_account.h"
    111 #include "pg_lookup_products.h"
    112 #include "pg_lookup_all_products.h"
    113 #include "pg_lookup_inventory_products.h"
    114 #include "pg_lookup_inventory_products_filtered.h"
    115 #include "pg_lookup_product.h"
    116 #include "pg_lookup_product_image.h"
    117 #include "pg_lookup_statistics_amount_by_bucket2.h"
    118 #include "pg_lookup_statistics_counter_by_bucket2.h"
    119 #include "pg_delete_product.h"
    120 #include "pg_insert_product.h"
    121 #include "pg_update_product.h"
    122 #include "pg_lookup_token_family_keys.h"
    123 #include "pg_lock_product.h"
    124 #include "pg_expire_locks.h"
    125 #include "pg_delete_order.h"
    126 #include "pg_lookup_order.h"
    127 #include "pg_lookup_order_summary.h"
    128 #include "pg_lookup_orders.h"
    129 #include "pg_insert_order.h"
    130 #include "pg_insert_order_blinded_sigs.h"
    131 #include "pg_increment_money_pots.h"
    132 #include "pg_unlock_inventory.h"
    133 #include "pg_insert_order_lock.h"
    134 #include "pg_select_order_blinded_sigs.h"
    135 #include "pg_lookup_contract_terms3.h"
    136 #include "pg_lookup_contract_terms2.h"
    137 #include "pg_lookup_contract_terms.h"
    138 #include "pg_insert_contract_terms.h"
    139 #include "pg_update_contract_terms.h"
    140 #include "pg_delete_contract_terms.h"
    141 #include "pg_delete_template.h"
    142 #include "pg_insert_template.h"
    143 #include "pg_update_template.h"
    144 #include "pg_lookup_templates.h"
    145 #include "pg_lookup_template.h"
    146 #include "pg_lookup_deposits.h"
    147 #include "pg_insert_exchange_signkey.h"
    148 #include "pg_insert_deposit.h"
    149 #include "pg_insert_deposit_confirmation.h"
    150 #include "pg_lookup_refunds.h"
    151 #include "pg_mark_contract_paid.h"
    152 #include "pg_select_account_by_uri.h"
    153 #include "pg_refund_coin.h"
    154 #include "pg_lookup_order_status.h"
    155 #include "pg_lookup_order_status_by_serial.h"
    156 #include "pg_lookup_deposits_by_order.h"
    157 #include "pg_lookup_transfer_details_by_order.h"
    158 #include "pg_mark_order_wired.h"
    159 #include "pg_lookup_refunds_detailed.h"
    160 #include "pg_insert_refund_proof.h"
    161 #include "pg_lookup_refund_proof.h"
    162 #include "pg_lookup_order_by_fulfillment.h"
    163 #include "pg_delete_transfer.h"
    164 #include "pg_check_transfer_exists.h"
    165 #include "pg_lookup_account.h"
    166 #include "pg_lookup_expected_transfers.h"
    167 #include "pg_lookup_deposits_by_contract_and_coin.h"
    168 #include "pg_lookup_transfer_summary.h"
    169 #include "pg_lookup_transfer_details.h"
    170 #include "pg_lookup_webhooks.h"
    171 #include "pg_lookup_webhook.h"
    172 #include "pg_lookup_wire_fee.h"
    173 #include "pg_delete_webhook.h"
    174 #include "pg_insert_webhook.h"
    175 #include "pg_update_webhook.h"
    176 #include "pg_lookup_webhook_by_event.h"
    177 #include "pg_delete_pending_webhook.h"
    178 #include "pg_insert_pending_webhook.h"
    179 #include "pg_update_pending_webhook.h"
    180 #include "pg_lookup_pending_webhooks.h"
    181 #include "pg_update_deposit_confirmation_status.h"
    182 #include "pg_insert_exchange_keys.h"
    183 #include "pg_select_exchange_keys.h"
    184 #include "pg_insert_deposit_to_transfer.h"
    185 #include "pg_increase_refund.h"
    186 #include "pg_select_account.h"
    187 #include "pg_select_accounts.h"
    188 #include "pg_insert_transfer.h"
    189 #include "pg_insert_transfer_details.h"
    190 #include "pg_store_wire_fee_by_exchange.h"
    191 #include "pg_insert_token_family.h"
    192 #include "pg_lookup_token_family.h"
    193 #include "pg_lookup_token_families.h"
    194 #include "pg_delete_token_family.h"
    195 #include "pg_update_token_family.h"
    196 #include "pg_insert_token_family_key.h"
    197 #include "pg_lookup_token_family_key.h"
    198 #include "pg_insert_spent_token.h"
    199 #include "pg_insert_issued_token.h"
    200 #include "pg_lookup_spent_tokens_by_order.h"
    201 #include "pg_lookup_statistics_amount_by_bucket.h"
    202 #include "pg_lookup_statistics_amount_by_interval.h"
    203 #include "pg_lookup_statistics_counter_by_bucket.h"
    204 #include "pg_lookup_statistics_counter_by_interval.h"
    205 #include "pg_update_donau_instance_receipts_amount.h"
    206 #include "pg_delete_donau_instance.h"
    207 #include "pg_update_contract_session.h"
    208 
    209 #ifdef HAVE_DONAU_DONAU_SERVICE_H
    210 #include "donau/donau_service.h"
    211 #include "pg_insert_donau_instance.h"
    212 #include "pg_check_donau_instance.h"
    213 #include "pg_select_donau_instance_by_serial.h"
    214 #include "pg_select_all_donau_instances.h"
    215 #include "pg_select_donau_instances.h"
    216 #include "pg_select_donau_instances_filtered.h"
    217 #include "pg_lookup_donau_keys.h"
    218 #include "pg_lookup_order_charity.h"
    219 #include "pg_upsert_donau_keys.h"
    220 #include "pg_update_donau_instance.h"
    221 #endif
    222 
    223 /**
    224  * How often do we re-try if we run into a DB serialization error?
    225  */
    226 #define MAX_RETRIES 3
    227 
    228 
    229 /**
    230  * Drop all Taler tables.  This should only be used by testcases.
    231  *
    232  * @param cls the `struct PostgresClosure` with the plugin-specific state
    233  * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
    234  */
    235 static enum GNUNET_GenericReturnValue
    236 postgres_drop_tables (void *cls)
    237 {
    238   struct PostgresClosure *pc = cls;
    239   struct GNUNET_PQ_Context *conn;
    240   enum GNUNET_GenericReturnValue ret;
    241 
    242   conn = GNUNET_PQ_connect_with_cfg (pc->cfg,
    243                                      "merchantdb-postgres",
    244                                      NULL,
    245                                      NULL,
    246                                      NULL);
    247   if (NULL == conn)
    248     return GNUNET_SYSERR;
    249   ret = GNUNET_PQ_exec_sql (conn,
    250                             "drop");
    251   GNUNET_PQ_disconnect (conn);
    252   return ret;
    253 }
    254 
    255 
    256 /**
    257  * Initialize tables.
    258  *
    259  * @param cls the `struct PostgresClosure` with the plugin-specific state
    260  * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
    261  */
    262 static enum GNUNET_GenericReturnValue
    263 postgres_create_tables (void *cls)
    264 {
    265   struct PostgresClosure *pc = cls;
    266   struct GNUNET_PQ_Context *conn;
    267   struct GNUNET_PQ_ExecuteStatement es[] = {
    268     GNUNET_PQ_make_try_execute ("SET search_path TO merchant;"),
    269     GNUNET_PQ_EXECUTE_STATEMENT_END
    270   };
    271   enum GNUNET_GenericReturnValue ret;
    272 
    273   conn = GNUNET_PQ_connect_with_cfg (pc->cfg,
    274                                      "merchantdb-postgres",
    275                                      "merchant-",
    276                                      es,
    277                                      NULL);
    278   if (NULL == conn)
    279     return GNUNET_SYSERR;
    280   ret = GNUNET_PQ_exec_sql (conn,
    281                             "procedures");
    282   GNUNET_PQ_disconnect (conn);
    283   return ret;
    284 }
    285 
    286 
    287 /**
    288  * Register callback to be invoked on events of type @a es.
    289  *
    290  * @param cls database context to use
    291  * @param es specification of the event to listen for
    292  * @param timeout how long to wait for the event
    293  * @param cb function to call when the event happens, possibly
    294  *         multiple times (until cancel is invoked)
    295  * @param cb_cls closure for @a cb
    296  * @return handle useful to cancel the listener
    297  */
    298 static struct GNUNET_DB_EventHandler *
    299 postgres_event_listen (void *cls,
    300                        const struct GNUNET_DB_EventHeaderP *es,
    301                        struct GNUNET_TIME_Relative timeout,
    302                        GNUNET_DB_EventCallback cb,
    303                        void *cb_cls)
    304 {
    305   struct PostgresClosure *pg = cls;
    306 
    307   return GNUNET_PQ_event_listen (pg->conn,
    308                                  es,
    309                                  timeout,
    310                                  cb,
    311                                  cb_cls);
    312 }
    313 
    314 
    315 /**
    316  * Stop notifications.
    317  *
    318  * @param eh handle to unregister.
    319  */
    320 static void
    321 postgres_event_listen_cancel (struct GNUNET_DB_EventHandler *eh)
    322 {
    323   GNUNET_PQ_event_listen_cancel (eh);
    324 }
    325 
    326 
    327 /**
    328  * Notify all that listen on @a es of an event.
    329  *
    330  * @param cls database context to use
    331  * @param es specification of the event to generate
    332  * @param extra additional event data provided
    333  * @param extra_size number of bytes in @a extra
    334  */
    335 static void
    336 postgres_event_notify (void *cls,
    337                        const struct GNUNET_DB_EventHeaderP *es,
    338                        const void *extra,
    339                        size_t extra_size)
    340 {
    341   struct PostgresClosure *pg = cls;
    342 
    343   return GNUNET_PQ_event_notify (pg->conn,
    344                                  es,
    345                                  extra,
    346                                  extra_size);
    347 }
    348 
    349 
    350 void
    351 postgres_preflight (void *cls)
    352 {
    353   struct PostgresClosure *pg = cls;
    354 
    355   if (NULL == pg->transaction_name)
    356     return; /* all good */
    357   GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
    358               "BUG: Preflight check detected running transaction `%s'!\n",
    359               pg->transaction_name);
    360   GNUNET_assert (0);
    361 }
    362 
    363 
    364 void
    365 check_connection (struct PostgresClosure *pg)
    366 {
    367   if (NULL != pg->transaction_name)
    368     return;
    369   GNUNET_PQ_reconnect_if_down (pg->conn);
    370 }
    371 
    372 
    373 /**
    374  * Establish connection to the database.
    375  *
    376  * @param cls plugin context
    377  * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
    378  */
    379 static enum GNUNET_GenericReturnValue
    380 postgres_connect (void *cls)
    381 {
    382   struct PostgresClosure *pg = cls;
    383   struct GNUNET_PQ_ExecuteStatement es[] = {
    384     GNUNET_PQ_make_try_execute ("SET search_path TO merchant;"),
    385     GNUNET_PQ_EXECUTE_STATEMENT_END
    386   };
    387 
    388   pg->conn = GNUNET_PQ_connect_with_cfg2 (pg->cfg,
    389                                           "merchantdb-postgres",
    390                                           "merchant-",
    391                                           es,
    392                                           NULL, /* prepared statemetns */
    393                                           GNUNET_PQ_FLAG_CHECK_CURRENT);
    394   pg->prep_gen++;
    395   if (NULL == pg->conn)
    396     return GNUNET_SYSERR;
    397   return GNUNET_OK;
    398 };
    399 
    400 
    401 /**
    402  * Initialize Postgres database subsystem.
    403  *
    404  * @param cls a configuration instance
    405  * @return NULL on error, otherwise a `struct TALER_MERCHANTDB_Plugin`
    406  */
    407 void *
    408 libtaler_plugin_merchantdb_postgres_init (void *cls);
    409 
    410 /* declaration to avoid compiler warning */
    411 void *
    412 libtaler_plugin_merchantdb_postgres_init (void *cls)
    413 {
    414   const struct GNUNET_CONFIGURATION_Handle *cfg = cls;
    415   struct PostgresClosure *pg;
    416   struct TALER_MERCHANTDB_Plugin *plugin;
    417 
    418   pg = GNUNET_new (struct PostgresClosure);
    419   pg->cfg = cfg;
    420   if (GNUNET_OK !=
    421       GNUNET_CONFIGURATION_get_value_filename (cfg,
    422                                                "merchantdb-postgres",
    423                                                "SQL_DIR",
    424                                                &pg->sql_dir))
    425   {
    426     GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
    427                                "merchantdb-postgres",
    428                                "SQL_DIR");
    429     GNUNET_free (pg);
    430     return NULL;
    431   }
    432   plugin = GNUNET_new (struct TALER_MERCHANTDB_Plugin);
    433   plugin->cls = pg;
    434   plugin->connect = &postgres_connect;
    435   plugin->create_tables = &postgres_create_tables;
    436   plugin->drop_tables = &postgres_drop_tables;
    437   plugin->event_listen = &postgres_event_listen;
    438   plugin->event_listen_cancel = &postgres_event_listen_cancel;
    439   plugin->event_notify = &postgres_event_notify;
    440   plugin->preflight = &postgres_preflight;
    441   plugin->start = &TMH_PG_start;
    442   plugin->start_read_committed = &TMH_PG_start_read_committed;
    443   plugin->rollback = &TMH_PG_rollback;
    444   plugin->commit = &TMH_PG_commit;
    445   plugin->insert_login_token
    446     = &TMH_PG_insert_login_token;
    447   plugin->delete_login_token
    448     = &TMH_PG_delete_login_token;
    449   plugin->delete_login_token_serial
    450     = &TMH_PG_delete_login_token_serial;
    451   plugin->select_login_token
    452     = &TMH_PG_select_login_token;
    453   plugin->lookup_login_tokens
    454     = &TMH_PG_lookup_login_tokens;
    455   plugin->select_account_by_uri
    456     = &TMH_PG_select_account_by_uri;
    457   plugin->lookup_instance_auth
    458     = &TMH_PG_lookup_instance_auth;
    459   plugin->insert_instance
    460     = &TMH_PG_insert_instance;
    461   plugin->insert_account
    462     = &TMH_PG_insert_account;
    463   plugin->lookup_otp_devices
    464     = &TMH_PG_lookup_otp_devices;
    465   plugin->delete_template
    466     = &TMH_PG_delete_template;
    467   plugin->insert_template
    468     = &TMH_PG_insert_template;
    469   plugin->update_template
    470     = &TMH_PG_update_template;
    471   plugin->lookup_templates
    472     = &TMH_PG_lookup_templates;
    473   plugin->lookup_template
    474     = &TMH_PG_lookup_template;
    475   plugin->update_account
    476     = &TMH_PG_update_account;
    477   plugin->account_kyc_set_status
    478     = &TMH_PG_account_kyc_set_status;
    479   plugin->account_kyc_get_status
    480     = &TMH_PG_account_kyc_get_status;
    481   plugin->delete_instance_private_key
    482     = &TMH_PG_delete_instance_private_key;
    483   plugin->purge_instance
    484     = &TMH_PG_purge_instance;
    485   plugin->update_instance
    486     = &TMH_PG_update_instance;
    487   plugin->update_instance_auth
    488     = &TMH_PG_update_instance_auth;
    489   plugin->activate_account
    490     = &TMH_PG_activate_account;
    491   plugin->inactivate_account
    492     = &TMH_PG_inactivate_account;
    493   plugin->update_transfer_status
    494     = &TMH_PG_update_transfer_status;
    495   plugin->finalize_transfer_status
    496     = &TMH_PG_finalize_transfer_status;
    497   plugin->lookup_products
    498     = &TMH_PG_lookup_products;
    499   plugin->lookup_all_products
    500     = &TMH_PG_lookup_all_products;
    501   plugin->lookup_inventory_products
    502     = &TMH_PG_lookup_inventory_products;
    503   plugin->lookup_inventory_products_filtered
    504     = &TMH_PG_lookup_inventory_products_filtered;
    505   plugin->lookup_product
    506     = &TMH_PG_lookup_product;
    507   plugin->lookup_product_image_by_hash
    508     = &TMH_PG_lookup_product_image_by_hash;
    509   plugin->delete_product
    510     = &TMH_PG_delete_product;
    511   plugin->insert_product
    512     = &TMH_PG_insert_product;
    513   plugin->update_product
    514     = &TMH_PG_update_product;
    515   plugin->insert_otp
    516     = &TMH_PG_insert_otp;
    517   plugin->delete_otp
    518     = &TMH_PG_delete_otp;
    519   plugin->update_otp
    520     = &TMH_PG_update_otp;
    521   plugin->select_otp
    522     = &TMH_PG_select_otp;
    523   plugin->select_otp_serial
    524     = &TMH_PG_select_otp_serial;
    525   plugin->insert_unclaim_signature
    526     = &TMH_PG_insert_unclaim_signature;
    527   plugin->lookup_reconciliation_details
    528     = &TMH_PG_lookup_reconciliation_details;
    529   plugin->lookup_expected_transfer
    530     = &TMH_PG_lookup_expected_transfer;
    531   plugin->lock_product
    532     = &TMH_PG_lock_product;
    533   plugin->expire_locks
    534     = &TMH_PG_expire_locks;
    535   plugin->delete_order
    536     = &TMH_PG_delete_order;
    537   plugin->lookup_order
    538     = &TMH_PG_lookup_order;
    539   plugin->lookup_order_summary
    540     = &TMH_PG_lookup_order_summary;
    541   plugin->lookup_orders
    542     = &TMH_PG_lookup_orders;
    543   plugin->insert_order
    544     = &TMH_PG_insert_order;
    545   plugin->insert_order_blinded_sigs
    546     = &TMH_PG_insert_order_blinded_sigs;
    547   plugin->unlock_inventory
    548     = &TMH_PG_unlock_inventory;
    549   plugin->insert_order_lock
    550     = &TMH_PG_insert_order_lock;
    551   plugin->select_order_blinded_sigs
    552     = &TMH_PG_select_order_blinded_sigs;
    553   plugin->lookup_contract_terms
    554     = &TMH_PG_lookup_contract_terms;
    555   plugin->lookup_contract_terms2
    556     = &TMH_PG_lookup_contract_terms2;
    557   plugin->lookup_contract_terms3
    558     = &TMH_PG_lookup_contract_terms3;
    559   plugin->insert_contract_terms
    560     = &TMH_PG_insert_contract_terms;
    561   plugin->update_contract_terms
    562     = &TMH_PG_update_contract_terms;
    563   plugin->delete_contract_terms
    564     = &TMH_PG_delete_contract_terms;
    565   plugin->lookup_deposits
    566     = &TMH_PG_lookup_deposits;
    567   plugin->insert_exchange_signkey
    568     = &TMH_PG_insert_exchange_signkey;
    569   plugin->insert_deposit_confirmation
    570     = &TMH_PG_insert_deposit_confirmation;
    571   plugin->insert_deposit
    572     = &TMH_PG_insert_deposit;
    573   plugin->lookup_refunds
    574     = &TMH_PG_lookup_refunds;
    575   plugin->mark_contract_paid
    576     = &TMH_PG_mark_contract_paid;
    577   plugin->refund_coin
    578     = &TMH_PG_refund_coin;
    579   plugin->lookup_order_status
    580     = &TMH_PG_lookup_order_status;
    581   plugin->lookup_order_status_by_serial
    582     = &TMH_PG_lookup_order_status_by_serial;
    583   plugin->lookup_deposits_by_order
    584     = &TMH_PG_lookup_deposits_by_order;
    585   plugin->lookup_transfer_details_by_order
    586     = &TMH_PG_lookup_transfer_details_by_order;
    587   plugin->mark_order_wired
    588     = &TMH_PG_mark_order_wired;
    589   plugin->increase_refund
    590     = &TMH_PG_increase_refund;
    591   plugin->lookup_refunds_detailed
    592     = &TMH_PG_lookup_refunds_detailed;
    593   plugin->insert_refund_proof
    594     = &TMH_PG_insert_refund_proof;
    595   plugin->lookup_refund_proof
    596     = &TMH_PG_lookup_refund_proof;
    597   plugin->lookup_order_by_fulfillment
    598     = &TMH_PG_lookup_order_by_fulfillment;
    599   plugin->delete_transfer
    600     = &TMH_PG_delete_transfer;
    601   plugin->check_transfer_exists
    602     = &TMH_PG_check_transfer_exists;
    603   plugin->lookup_account
    604     = &TMH_PG_lookup_account;
    605   plugin->lookup_wire_fee
    606     = &TMH_PG_lookup_wire_fee;
    607   plugin->lookup_deposits_by_contract_and_coin
    608     = &TMH_PG_lookup_deposits_by_contract_and_coin;
    609   plugin->lookup_transfer_summary
    610     = &TMH_PG_lookup_transfer_summary;
    611   plugin->lookup_transfer_details
    612     = &TMH_PG_lookup_transfer_details;
    613   plugin->lookup_instances
    614     = &TMH_PG_lookup_instances;
    615   plugin->lookup_instance
    616     = &TMH_PG_lookup_instance;
    617   plugin->lookup_transfers
    618     = &TMH_PG_lookup_transfers;
    619   plugin->update_wirewatch_progress
    620     = &TMH_PG_update_wirewatch_progress;
    621   plugin->select_wirewatch_accounts
    622     = &TMH_PG_select_wirewatch_accounts;
    623   plugin->select_account
    624     = &TMH_PG_select_account;
    625   plugin->select_accounts
    626     = &TMH_PG_select_accounts;
    627   plugin->select_open_transfers
    628     = &TMH_PG_select_open_transfers;
    629   plugin->insert_exchange_keys
    630     = &TMH_PG_insert_exchange_keys;
    631   plugin->select_exchange_keys
    632     = &TMH_PG_select_exchange_keys;
    633   plugin->insert_deposit_to_transfer
    634     = &TMH_PG_insert_deposit_to_transfer;
    635   plugin->insert_transfer
    636     = &TMH_PG_insert_transfer;
    637   plugin->lookup_token_family_keys
    638     = &TMH_PG_lookup_token_family_keys;
    639   plugin->insert_transfer_details
    640     = &TMH_PG_insert_transfer_details;
    641   plugin->store_wire_fee_by_exchange
    642     = &TMH_PG_store_wire_fee_by_exchange;
    643   plugin->lookup_webhooks
    644     = &TMH_PG_lookup_webhooks;
    645   plugin->lookup_webhook
    646     = &TMH_PG_lookup_webhook;
    647   plugin->delete_webhook
    648     = &TMH_PG_delete_webhook;
    649   plugin->insert_webhook
    650     = &TMH_PG_insert_webhook;
    651   plugin->update_webhook
    652     = &TMH_PG_update_webhook;
    653   plugin->lookup_pending_deposits
    654     = &TMH_PG_lookup_pending_deposits;
    655   plugin->lookup_webhook_by_event
    656     = &TMH_PG_lookup_webhook_by_event;
    657   plugin->lookup_all_webhooks
    658     = &TMH_PG_lookup_all_webhooks;
    659   plugin->lookup_future_webhook
    660     = &TMH_PG_lookup_future_webhook;
    661   plugin->lookup_pending_webhooks
    662     = &TMH_PG_lookup_pending_webhooks;
    663   plugin->delete_pending_webhook
    664     = &TMH_PG_delete_pending_webhook;
    665   plugin->insert_pending_webhook
    666     = &TMH_PG_insert_pending_webhook;
    667   plugin->update_pending_webhook
    668     = &TMH_PG_update_pending_webhook;
    669   plugin->lookup_categories
    670     = &TMH_PG_lookup_categories;
    671   plugin->lookup_categories_by_ids
    672     = &TMH_PG_lookup_categories_by_ids;
    673   plugin->lookup_units
    674     = &TMH_PG_lookup_units;
    675   plugin->lookup_custom_units_by_names
    676     = &TMH_PG_lookup_custom_units_by_names;
    677   plugin->select_category_by_name
    678     = &TMH_PG_select_category_by_name;
    679   plugin->get_kyc_status
    680     = &TMH_PG_get_kyc_status;
    681   plugin->account_kyc_set_failed
    682     = &TMH_PG_account_kyc_set_failed;
    683   plugin->get_kyc_limits
    684     = &TMH_PG_get_kyc_limits;
    685   plugin->select_category
    686     = &TMH_PG_select_category;
    687   plugin->select_unit
    688     = &TMH_PG_select_unit;
    689   plugin->update_category
    690     = &TMH_PG_update_category;
    691   plugin->update_unit
    692     = &TMH_PG_update_unit;
    693   plugin->insert_category
    694     = &TMH_PG_insert_category;
    695   plugin->insert_unit
    696     = &TMH_PG_insert_unit;
    697   plugin->delete_category
    698     = &TMH_PG_delete_category;
    699   plugin->delete_unit
    700     = &TMH_PG_delete_unit;
    701   plugin->delete_exchange_accounts
    702     = &TMH_PG_delete_exchange_accounts;
    703   plugin->select_accounts_by_exchange
    704     = &TMH_PG_select_accounts_by_exchange;
    705   plugin->insert_exchange_account
    706     = &TMH_PG_insert_exchange_account;
    707   plugin->insert_token_family
    708     = &TMH_PG_insert_token_family;
    709   plugin->lookup_expected_transfers
    710     = &TMH_PG_lookup_expected_transfers;
    711   plugin->lookup_token_family
    712     = &TMH_PG_lookup_token_family;
    713   plugin->lookup_token_families
    714     = &TMH_PG_lookup_token_families;
    715   plugin->delete_token_family
    716     = &TMH_PG_delete_token_family;
    717   plugin->update_token_family
    718     = &TMH_PG_update_token_family;
    719   plugin->insert_report
    720     = &TMH_PG_insert_report;
    721   plugin->delete_report
    722     = &TMH_PG_delete_report;
    723   plugin->update_report
    724     = &TMH_PG_update_report;
    725   plugin->check_report
    726     = &TMH_PG_check_report;
    727   plugin->select_reports
    728     = &TMH_PG_select_reports;
    729   plugin->lookup_reports_pending
    730     = &TMH_PG_lookup_reports_pending;
    731   plugin->update_report_status
    732     = &TMH_PG_update_report_status;
    733   plugin->lookup_statistics_amount_by_bucket2
    734     = &TMH_PG_lookup_statistics_amount_by_bucket2;
    735   plugin->lookup_statistics_counter_by_bucket2
    736     = &TMH_PG_lookup_statistics_counter_by_bucket2;
    737   plugin->account_kyc_get_outdated
    738     = &TMH_PG_account_kyc_get_outdated;
    739   plugin->select_report
    740     = &TMH_PG_select_report;
    741   plugin->insert_product_group
    742     = &TMH_PG_insert_product_group;
    743   plugin->delete_product_group
    744     = &TMH_PG_delete_product_group;
    745   plugin->select_exchanges
    746     = &TMH_PG_select_exchanges;
    747   plugin->update_product_group
    748     = &TMH_PG_update_product_group;
    749   plugin->select_product_groups
    750     = &TMH_PG_select_product_groups;
    751   plugin->insert_money_pot
    752     = &TMH_PG_insert_money_pot;
    753   plugin->delete_money_pot
    754     = &TMH_PG_delete_money_pot;
    755   plugin->update_money_pot
    756     = &TMH_PG_update_money_pot;
    757   plugin->check_money_pots
    758     = &TMH_PG_check_money_pots;
    759   plugin->select_money_pots
    760     = &TMH_PG_select_money_pots;
    761   plugin->select_money_pot
    762     = &TMH_PG_select_money_pot;
    763   plugin->insert_token_family_key
    764     = &TMH_PG_insert_token_family_key;
    765   plugin->update_contract_session
    766     = &TMH_PG_update_contract_session;
    767   plugin->lookup_token_family_key
    768     = &TMH_PG_lookup_token_family_key;
    769   plugin->update_deposit_confirmation_status
    770     = &TMH_PG_update_deposit_confirmation_status;
    771   plugin->update_donau_instance_receipts_amount
    772     = &TMH_PG_update_donau_instance_receipts_amount;
    773   plugin->insert_spent_token
    774     = &TMH_PG_insert_spent_token;
    775   plugin->insert_issued_token
    776     = &TMH_PG_insert_issued_token;
    777   plugin->lookup_spent_tokens_by_order
    778     = &TMH_PG_lookup_spent_tokens_by_order;
    779   plugin->lookup_statistics_amount_by_bucket
    780     = &TMH_PG_lookup_statistics_amount_by_bucket;
    781   plugin->lookup_statistics_counter_by_bucket
    782     = &TMH_PG_lookup_statistics_counter_by_bucket;
    783   plugin->lookup_statistics_counter_by_interval
    784     = &TMH_PG_lookup_statistics_counter_by_interval;
    785   plugin->lookup_statistics_amount_by_interval
    786     = &TMH_PG_lookup_statistics_amount_by_interval;
    787   plugin->lookup_mfa_challenge
    788     = &TMH_PG_lookup_mfa_challenge;
    789   plugin->solve_mfa_challenge
    790     = &TMH_PG_solve_mfa_challenge;
    791   plugin->update_mfa_challenge
    792     = &TMH_PG_update_mfa_challenge;
    793   plugin->create_mfa_challenge
    794     = &TMH_PG_create_mfa_challenge;
    795   plugin->gc
    796     = &TMH_PG_gc;
    797 #ifdef HAVE_DONAU_DONAU_SERVICE_H
    798   plugin->insert_donau_instance
    799     = &TMH_PG_insert_donau_instance;
    800   plugin->check_donau_instance
    801     = &TMH_PG_check_donau_instance;
    802   plugin->select_donau_instance_by_serial
    803     = &TMH_PG_select_donau_instance_by_serial;
    804   plugin->select_all_donau_instances
    805     = &TMH_PG_select_all_donau_instances;
    806   plugin->select_donau_instances
    807     = &TMH_PG_select_donau_instances;
    808   plugin->select_donau_instances_filtered
    809     = &TMH_PG_select_donau_instances_filtered;
    810   plugin->delete_donau_instance
    811     = &TMH_PG_delete_donau_instance;
    812   plugin->lookup_donau_keys
    813     = &TMH_PG_lookup_donau_keys;
    814   plugin->lookup_order_charity
    815     = &TMH_PG_lookup_order_charity;
    816   plugin->increment_money_pots
    817     = &TMH_PG_increment_money_pots;
    818   plugin->upsert_donau_keys
    819     = &TMH_PG_upsert_donau_keys;
    820   plugin->update_donau_instance
    821     = &TMH_PG_update_donau_instance;
    822 #endif
    823   return plugin;
    824 }
    825 
    826 
    827 /**
    828  * Shutdown Postgres database subsystem.
    829  *
    830  * @param cls a `struct TALER_MERCHANTDB_Plugin`
    831  * @return NULL (always)
    832  */
    833 void *
    834 libtaler_plugin_merchantdb_postgres_done (void *cls);
    835 
    836 /* declaration to avoid compiler warning */
    837 void *
    838 libtaler_plugin_merchantdb_postgres_done (void *cls)
    839 {
    840   struct TALER_MERCHANTDB_Plugin *plugin = cls;
    841   struct PostgresClosure *pg = plugin->cls;
    842 
    843   if (NULL != pg->conn)
    844   {
    845     GNUNET_PQ_disconnect (pg->conn);
    846     pg->conn = NULL;
    847   }
    848   GNUNET_free (pg->sql_dir);
    849   GNUNET_free (pg);
    850   GNUNET_free (plugin);
    851   return NULL;
    852 }
    853 
    854 
    855 /* end of plugin_merchantdb_postgres.c */