1871 lines
53 KiB
C
1871 lines
53 KiB
C
/*
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This file is part of TALER
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(C) 2014, 2015 Christian Grothoff (and other contributing authors)
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* @file mint_db.c
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* @brief Low-level (statement-level) database access for the mint
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* @author Florian Dold
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* @author Christian Grothoff
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*
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* TODO:
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* - The mint_db.h-API should ideally be what we need to port
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* when using other databases; so here we should enable
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* alternative implementations by returning
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* a more opaque DB handle.
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*/
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#include "platform.h"
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#include "db_pq.h"
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#include "taler_signatures.h"
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#include "taler-mint-httpd_responses.h"
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#include "mint_db.h"
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#include <pthread.h>
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/**
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* Thread-local database connection.
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* Contains a pointer to PGconn or NULL.
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*/
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static pthread_key_t db_conn_threadlocal;
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/**
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* Database connection string, as read from
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* the configuration.
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*/
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static char *TALER_MINT_db_connection_cfg_str;
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#define break_db_err(result) do { \
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GNUNET_break(0); \
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GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Database failure: %s\n", PQresultErrorMessage (result)); \
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} while (0)
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/**
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* Shorthand for exit jumps.
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*/
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#define EXITIF(cond) \
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do { \
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if (cond) { GNUNET_break (0); goto EXITIF_exit; } \
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} while (0)
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int
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TALER_MINT_DB_prepare (PGconn *db_conn)
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{
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PGresult *result;
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result = PQprepare (db_conn, "get_reserve",
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"SELECT "
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" balance_value, balance_fraction, balance_currency "
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",expiration_date, blind_session_pub, blind_session_priv"
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",status_sig, status_sign_pub "
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"FROM reserves "
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"WHERE reserve_pub=$1 "
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"LIMIT 1; ",
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1, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "update_reserve",
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"UPDATE reserves "
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"SET"
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" balance_value=$2 "
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",balance_fraction=$3 "
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",balance_currency=$4 "
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",status_sig=$5 "
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",status_sign_pub=$6 "
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",expiration_date=$7 "
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"WHERE reserve_pub=$1 ",
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9, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "insert_collectable_blindcoins",
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"INSERT INTO collectable_blindcoins ( "
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" blind_ev, blind_ev_sig "
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",denom_pub, reserve_pub, reserve_sig) "
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"VALUES ($1, $2, $3, $4, $5)",
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6, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "get_collectable_blindcoins",
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"SELECT "
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"blind_ev_sig, denom_pub, reserve_sig, reserve_pub "
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"FROM collectable_blindcoins "
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"WHERE blind_ev = $1",
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1, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "insert_reserve_order",
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"SELECT "
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" blind_ev, blind_ev_sig, denom_pub, reserve_sig, reserve_pub "
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"FROM collectable_blindcoins "
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"WHERE blind_session_pub = $1",
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1, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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/* FIXME: does it make sense to store these computed values in the DB? */
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result = PQprepare (db_conn, "get_refresh_session",
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"SELECT "
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" (SELECT count(*) FROM refresh_melt WHERE session_pub = $1)::INT2 as num_oldcoins "
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",(SELECT count(*) FROM refresh_blind_session_keys "
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" WHERE session_pub = $1 and cnc_index = 0)::INT2 as num_newcoins "
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",(SELECT count(*) FROM refresh_blind_session_keys "
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" WHERE session_pub = $1 and newcoin_index = 0)::INT2 as kappa "
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",noreveal_index"
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",session_commit_sig "
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",reveal_ok "
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"FROM refresh_sessions "
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"WHERE session_pub = $1",
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1, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "get_known_coin",
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"SELECT "
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" coin_pub, denom_pub, denom_sig "
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",expended_value, expended_fraction, expended_currency "
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",refresh_session_pub "
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"FROM known_coins "
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"WHERE coin_pub = $1",
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1, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "update_known_coin",
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"UPDATE known_coins "
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"SET "
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" denom_pub = $2 "
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",denom_sig = $3 "
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",expended_value = $4 "
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",expended_fraction = $5 "
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",expended_currency = $6 "
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",refresh_session_pub = $7 "
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"WHERE "
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" coin_pub = $1 ",
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7, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "insert_known_coin",
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"INSERT INTO known_coins ("
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" coin_pub"
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",denom_pub"
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",denom_sig"
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",expended_value"
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",expended_fraction"
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",expended_currency"
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",refresh_session_pub"
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")"
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"VALUES ($1,$2,$3,$4,$5,$6,$7)",
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7, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "get_refresh_commit_link",
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"SELECT "
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" transfer_pub "
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",link_secret_enc "
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"FROM refresh_commit_link "
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"WHERE session_pub = $1 AND cnc_index = $2 AND oldcoin_index = $3",
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3, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "get_refresh_commit_coin",
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"SELECT "
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" link_vector_enc "
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",coin_ev "
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"FROM refresh_commit_coin "
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"WHERE session_pub = $1 AND cnc_index = $2 AND newcoin_index = $3",
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3, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "insert_refresh_order",
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"INSERT INTO refresh_order ( "
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" newcoin_index "
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",session_pub "
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",denom_pub "
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") "
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"VALUES ($1, $2, $3) ",
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3, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "insert_refresh_melt",
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"INSERT INTO refresh_melt ( "
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" session_pub "
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",oldcoin_index "
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",coin_pub "
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",denom_pub "
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") "
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"VALUES ($1, $2, $3, $4) ",
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3, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "get_refresh_order",
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"SELECT denom_pub "
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"FROM refresh_order "
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"WHERE session_pub = $1 AND newcoin_index = $2",
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2, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "get_refresh_collectable",
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"SELECT ev_sig "
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"FROM refresh_collectable "
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"WHERE session_pub = $1 AND newcoin_index = $2",
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2, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "get_refresh_melt",
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"SELECT coin_pub "
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"FROM refresh_melt "
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"WHERE session_pub = $1 AND oldcoin_index = $2",
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2, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "insert_refresh_session",
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"INSERT INTO refresh_sessions ( "
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" session_pub "
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",noreveal_index "
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") "
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"VALUES ($1, $2) ",
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2, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "insert_refresh_commit_link",
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"INSERT INTO refresh_commit_link ( "
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" session_pub "
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",transfer_pub "
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",cnc_index "
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",oldcoin_index "
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",link_secret_enc "
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") "
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"VALUES ($1, $2, $3, $4, $5) ",
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5, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "insert_refresh_commit_coin",
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"INSERT INTO refresh_commit_coin ( "
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" session_pub "
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",coin_ev "
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",cnc_index "
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",newcoin_index "
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",link_vector_enc "
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") "
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"VALUES ($1, $2, $3, $4, $5) ",
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5, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "insert_refresh_collectable",
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"INSERT INTO refresh_collectable ( "
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" session_pub "
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",newcoin_index "
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",ev_sig "
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") "
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"VALUES ($1, $2, $3) ",
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3, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "set_reveal_ok",
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"UPDATE refresh_sessions "
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"SET reveal_ok = TRUE "
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"WHERE session_pub = $1 ",
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1, NULL);
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if (PGRES_COMMAND_OK != PQresultStatus(result))
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{
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break_db_err (result);
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PQclear (result);
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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQprepare (db_conn, "get_link",
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"SELECT link_vector_enc, ro.denom_pub, ev_sig "
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"FROM refresh_melt rm "
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" JOIN refresh_order ro USING (session_pub) "
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" JOIN refresh_commit_coin rcc USING (session_pub) "
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" JOIN refresh_sessions rs USING (session_pub) "
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" JOIN refresh_collectable rc USING (session_pub) "
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"WHERE rm.coin_pub = $1 "
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"AND ro.newcoin_index = rcc.newcoin_index "
|
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"AND ro.newcoin_index = rc.newcoin_index "
|
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"AND rcc.cnc_index = rs.noreveal_index % ( "
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" SELECT count(*) FROM refresh_commit_coin rcc2 "
|
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" WHERE rcc2.newcoin_index = 0 AND rcc2.session_pub = rs.session_pub "
|
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" ) ",
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1, NULL);
|
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if (PGRES_COMMAND_OK != PQresultStatus(result))
|
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{
|
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break_db_err (result);
|
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PQclear (result);
|
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return GNUNET_SYSERR;
|
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}
|
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PQclear (result);
|
|
|
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result = PQprepare (db_conn, "get_transfer",
|
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"SELECT transfer_pub, link_secret_enc "
|
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"FROM refresh_melt rm "
|
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" JOIN refresh_commit_link rcl USING (session_pub) "
|
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" JOIN refresh_sessions rs USING (session_pub) "
|
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"WHERE rm.coin_pub = $1 "
|
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"AND rm.oldcoin_index = rcl.oldcoin_index "
|
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"AND rcl.cnc_index = rs.noreveal_index % ( "
|
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" SELECT count(*) FROM refresh_commit_coin rcc2 "
|
|
" WHERE newcoin_index = 0 AND rcc2.session_pub = rm.session_pub "
|
|
" ) ",
|
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1, NULL);
|
|
if (PGRES_COMMAND_OK != PQresultStatus(result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
|
|
result = PQprepare (db_conn, "insert_deposit",
|
|
"INSERT INTO deposits ("
|
|
"coin_pub,"
|
|
"denom_pub,"
|
|
"transaction_id,"
|
|
"amount_value,"
|
|
"amount_fraction,"
|
|
"amount_currency,"
|
|
"merchant_pub,"
|
|
"h_contract,"
|
|
"h_wire,"
|
|
"coin_sig,"
|
|
"wire"
|
|
") VALUES ("
|
|
"$1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11"
|
|
")",
|
|
11, NULL);
|
|
EXITIF (PGRES_COMMAND_OK != PQresultStatus(result));
|
|
PQclear (result);
|
|
|
|
result = PQprepare (db_conn, "get_deposit",
|
|
"SELECT "
|
|
"coin_pub,"
|
|
"denom_pub,"
|
|
"transaction_id,"
|
|
"amount_value,"
|
|
"amount_fraction,"
|
|
"amount_currency,"
|
|
"merchant_pub,"
|
|
"h_contract,"
|
|
"h_wire,"
|
|
"coin_sig"
|
|
" FROM deposits WHERE ("
|
|
"coin_pub = $1"
|
|
")",
|
|
1, NULL);
|
|
EXITIF (PGRES_COMMAND_OK != PQresultStatus(result));
|
|
PQclear (result);
|
|
|
|
return GNUNET_OK;
|
|
|
|
EXITIF_exit:
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
|
|
/**
|
|
* Insert a refresh order into the database.
|
|
*/
|
|
int
|
|
TALER_MINT_DB_insert_refresh_order (PGconn *db_conn,
|
|
uint16_t newcoin_index,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub,
|
|
const struct GNUNET_CRYPTO_rsa_PublicKey *denom_pub)
|
|
{
|
|
uint16_t newcoin_index_nbo = htons (newcoin_index);
|
|
char *buf;
|
|
size_t buf_size;
|
|
PGresult *result;
|
|
|
|
buf_size = GNUNET_CRYPTO_rsa_public_key_encode (denom_pub,
|
|
&buf);
|
|
|
|
{
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR (&newcoin_index_nbo),
|
|
TALER_DB_QUERY_PARAM_PTR (session_pub),
|
|
TALER_DB_QUERY_PARAM_PTR_SIZED (buf, buf_size),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
result = TALER_DB_exec_prepared (db_conn,
|
|
"insert_refresh_order",
|
|
params);
|
|
}
|
|
GNUNET_free (buf);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (0 != strcmp ("1", PQcmdTuples (result)))
|
|
{
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
int
|
|
TALER_MINT_DB_set_commit_signature (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub,
|
|
const struct GNUNET_CRYPTO_EddsaSignature *commit_sig)
|
|
{
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
|
|
int
|
|
TALER_MINT_DB_set_reveal_ok (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub)
|
|
{
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(session_pub),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
|
|
PGresult *result = TALER_DB_exec_prepared (db_conn, "set_reveal_ok", params);
|
|
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
if (0 != strcmp ("1", PQcmdTuples (result)))
|
|
{
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
struct GNUNET_CRYPTO_rsa_PublicKey *
|
|
TALER_MINT_DB_get_refresh_order (PGconn *db_conn,
|
|
uint16_t newcoin_index,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub)
|
|
|
|
{
|
|
char *buf;
|
|
size_t buf_size;
|
|
struct GNUNET_CRYPTO_rsa_PublicKey *denom_pub;
|
|
uint16_t newcoin_index_nbo = htons (newcoin_index);
|
|
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(session_pub),
|
|
TALER_DB_QUERY_PARAM_PTR(&newcoin_index_nbo),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
|
|
PGresult *result = TALER_DB_exec_prepared (db_conn, "get_refresh_order", params);
|
|
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return NULL;
|
|
}
|
|
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
/* FIXME: may want to distinguish between different error cases! */
|
|
return NULL;
|
|
}
|
|
GNUNET_assert (1 == PQntuples (result));
|
|
struct TALER_DB_ResultSpec rs[] = {
|
|
TALER_DB_RESULT_SPEC_VAR ("denom_pub", &buf, &buf_size),
|
|
TALER_DB_RESULT_SPEC_END
|
|
};
|
|
if (GNUNET_OK != TALER_DB_extract_result (result, rs, 0))
|
|
{
|
|
PQclear (result);
|
|
GNUNET_break (0);
|
|
return NULL;
|
|
}
|
|
PQclear (result);
|
|
denom_pub = GNUNET_CRYPTO_rsa_public_key_decode (buf, buf_size);
|
|
GNUNET_free (buf);
|
|
return denom_pub;
|
|
}
|
|
|
|
|
|
int
|
|
TALER_MINT_DB_insert_refresh_collectable (PGconn *db_conn,
|
|
uint16_t newcoin_index,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub,
|
|
const struct GNUNET_CRYPTO_rsa_Signature *ev_sig)
|
|
{
|
|
uint16_t newcoin_index_nbo = htons (newcoin_index);
|
|
char *buf;
|
|
size_t buf_size;
|
|
PGresult *result;
|
|
|
|
buf_size = GNUNET_CRYPTO_rsa_signature_encode (ev_sig,
|
|
&buf);
|
|
{
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(session_pub),
|
|
TALER_DB_QUERY_PARAM_PTR(&newcoin_index_nbo),
|
|
TALER_DB_QUERY_PARAM_PTR_SIZED(buf, buf_size),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
result = TALER_DB_exec_prepared (db_conn,
|
|
"insert_refresh_collectable",
|
|
params);
|
|
}
|
|
GNUNET_free (buf);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
struct GNUNET_CRYPTO_rsa_Signature *
|
|
TALER_MINT_DB_get_refresh_collectable (PGconn *db_conn,
|
|
uint16_t newcoin_index,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub)
|
|
{
|
|
struct GNUNET_CRYPTO_rsa_Signature *ev_sig;
|
|
char *buf;
|
|
size_t buf_size;
|
|
uint16_t newcoin_index_nbo = htons (newcoin_index);
|
|
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(session_pub),
|
|
TALER_DB_QUERY_PARAM_PTR(&newcoin_index_nbo),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
|
|
PGresult *result = TALER_DB_exec_prepared (db_conn, "get_refresh_collectable", params);
|
|
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return NULL;
|
|
}
|
|
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
/* FIXME: may want to distinguish between different error cases! */
|
|
return NULL;
|
|
}
|
|
|
|
GNUNET_assert (1 == PQntuples (result));
|
|
|
|
struct TALER_DB_ResultSpec rs[] = {
|
|
TALER_DB_RESULT_SPEC_VAR("ev_sig", &buf, &buf_size),
|
|
TALER_DB_RESULT_SPEC_END
|
|
};
|
|
|
|
if (GNUNET_OK != TALER_DB_extract_result (result, rs, 0))
|
|
{
|
|
PQclear (result);
|
|
GNUNET_break (0);
|
|
return NULL;
|
|
}
|
|
|
|
PQclear (result);
|
|
ev_sig = GNUNET_CRYPTO_rsa_signature_decode (buf,
|
|
buf_size);
|
|
GNUNET_free (buf);
|
|
return ev_sig;
|
|
}
|
|
|
|
|
|
int
|
|
TALER_db_get_link (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EcdsaPublicKey *coin_pub,
|
|
LinkIterator link_iter,
|
|
void *cls)
|
|
{
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(coin_pub),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
|
|
PGresult *result = TALER_DB_exec_prepared (db_conn, "get_link", params);
|
|
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
|
|
|
|
int i = 0;
|
|
int res;
|
|
|
|
for (i = 0; i < PQntuples (result); i++)
|
|
{
|
|
struct TALER_RefreshLinkEncrypted *link_enc;
|
|
struct GNUNET_CRYPTO_rsa_PublicKey *denom_pub;
|
|
struct GNUNET_CRYPTO_rsa_Signature *sig;
|
|
char *ld_buf;
|
|
size_t ld_buf_size;
|
|
char *pk_buf;
|
|
size_t pk_buf_size;
|
|
char *sig_buf;
|
|
size_t sig_buf_size;
|
|
struct TALER_DB_ResultSpec rs[] = {
|
|
TALER_DB_RESULT_SPEC_VAR("link_vector_enc", &ld_buf, &ld_buf_size),
|
|
TALER_DB_RESULT_SPEC_VAR("denom_pub", &pk_buf, &pk_buf_size),
|
|
TALER_DB_RESULT_SPEC_VAR("ev_sig", &sig_buf, &sig_buf_size),
|
|
TALER_DB_RESULT_SPEC_END
|
|
};
|
|
|
|
if (GNUNET_OK != TALER_DB_extract_result (result, rs, i))
|
|
{
|
|
PQclear (result);
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (ld_buf_size < sizeof (struct GNUNET_CRYPTO_EcdsaPrivateKey))
|
|
{
|
|
PQclear (result);
|
|
GNUNET_free (pk_buf);
|
|
GNUNET_free (sig_buf);
|
|
GNUNET_free (ld_buf);
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
link_enc = GNUNET_malloc (sizeof (struct TALER_RefreshLinkEncrypted) +
|
|
ld_buf_size - sizeof (struct GNUNET_CRYPTO_EcdsaPrivateKey));
|
|
link_enc->blinding_key_enc = (const char *) &link_enc[1];
|
|
link_enc->blinding_key_enc_size = ld_buf_size - sizeof (struct GNUNET_CRYPTO_EcdsaPrivateKey);
|
|
memcpy (link_enc->coin_priv_enc,
|
|
ld_buf,
|
|
ld_buf_size);
|
|
|
|
sig = GNUNET_CRYPTO_rsa_signature_decode (sig_buf,
|
|
sig_buf_size);
|
|
denom_pub = GNUNET_CRYPTO_rsa_public_key_decode (pk_buf,
|
|
pk_buf_size);
|
|
GNUNET_free (pk_buf);
|
|
GNUNET_free (sig_buf);
|
|
GNUNET_free (ld_buf);
|
|
if ( (NULL == sig) ||
|
|
(NULL == denom_pub) )
|
|
{
|
|
if (NULL != denom_pub)
|
|
GNUNET_CRYPTO_rsa_public_key_free (denom_pub);
|
|
if (NULL != sig)
|
|
GNUNET_CRYPTO_rsa_signature_free (sig);
|
|
GNUNET_free (link_enc);
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (GNUNET_OK != (res = link_iter (cls,
|
|
link_enc,
|
|
denom_pub,
|
|
sig)))
|
|
{
|
|
GNUNET_assert (GNUNET_SYSERR != res);
|
|
GNUNET_CRYPTO_rsa_signature_free (sig);
|
|
GNUNET_CRYPTO_rsa_public_key_free (denom_pub);
|
|
GNUNET_free (link_enc);
|
|
PQclear (result);
|
|
return res;
|
|
}
|
|
GNUNET_CRYPTO_rsa_signature_free (sig);
|
|
GNUNET_CRYPTO_rsa_public_key_free (denom_pub);
|
|
GNUNET_free (link_enc);
|
|
}
|
|
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
int
|
|
TALER_db_get_transfer (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EcdsaPublicKey *coin_pub,
|
|
struct GNUNET_CRYPTO_EcdsaPublicKey *transfer_pub,
|
|
struct GNUNET_HashCode *shared_secret_enc)
|
|
{
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(coin_pub),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
|
|
PGresult *result = TALER_DB_exec_prepared (db_conn, "get_transfer", params);
|
|
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
|
|
if (1 != PQntuples (result))
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
|
|
"got %d tuples for get_transfer\n",
|
|
PQntuples (result));
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
struct TALER_DB_ResultSpec rs[] = {
|
|
TALER_DB_RESULT_SPEC("transfer_pub", transfer_pub),
|
|
TALER_DB_RESULT_SPEC("link_secret_enc", shared_secret_enc),
|
|
TALER_DB_RESULT_SPEC_END
|
|
};
|
|
|
|
if (GNUNET_OK != TALER_DB_extract_result (result, rs, 0))
|
|
{
|
|
PQclear (result);
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// Chaos
|
|
////////////////////////////////////////////////////////////////
|
|
// Order
|
|
|
|
|
|
|
|
/**
|
|
* Close thread-local database connection when a thread is destroyed.
|
|
*
|
|
* @param closure we get from pthreads (the db handle)
|
|
*/
|
|
static void
|
|
db_conn_destroy (void *cls)
|
|
{
|
|
PGconn *db_conn = cls;
|
|
|
|
if (NULL != db_conn)
|
|
PQfinish (db_conn);
|
|
}
|
|
|
|
|
|
/**
|
|
* Initialize database subsystem.
|
|
*
|
|
* @param connection_cfg configuration to use to talk to DB
|
|
* @return #GNUNET_OK on success
|
|
*/
|
|
int
|
|
TALER_MINT_DB_init (const char *connection_cfg)
|
|
{
|
|
if (0 != pthread_key_create (&db_conn_threadlocal,
|
|
&db_conn_destroy))
|
|
{
|
|
LOG_ERROR ("Cannnot create pthread key.\n");
|
|
return GNUNET_SYSERR;
|
|
}
|
|
TALER_MINT_db_connection_cfg_str = GNUNET_strdup (connection_cfg);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Get the thread-local database-handle.
|
|
* Connect to the db if the connection does not exist yet.
|
|
*
|
|
* @return the database connection, or NULL on error
|
|
*/
|
|
PGconn *
|
|
TALER_MINT_DB_get_connection (void)
|
|
{
|
|
PGconn *db_conn;
|
|
|
|
if (NULL != (db_conn = pthread_getspecific (db_conn_threadlocal)))
|
|
return db_conn;
|
|
|
|
db_conn = PQconnectdb (TALER_MINT_db_connection_cfg_str);
|
|
|
|
if (CONNECTION_OK !=
|
|
PQstatus (db_conn))
|
|
{
|
|
LOG_ERROR ("Database connection failed: %s\n",
|
|
PQerrorMessage (db_conn));
|
|
GNUNET_break (0);
|
|
return NULL;
|
|
}
|
|
|
|
if (GNUNET_OK !=
|
|
TALER_MINT_DB_prepare (db_conn))
|
|
{
|
|
GNUNET_break (0);
|
|
return NULL;
|
|
}
|
|
if (0 != pthread_setspecific (db_conn_threadlocal,
|
|
db_conn))
|
|
{
|
|
GNUNET_break (0);
|
|
return NULL;
|
|
}
|
|
return db_conn;
|
|
}
|
|
|
|
|
|
/**
|
|
* Start a transaction.
|
|
*
|
|
* @param db_conn the database connection
|
|
* @return #GNUNET_OK on success
|
|
*/
|
|
int
|
|
TALER_MINT_DB_transaction (PGconn *db_conn)
|
|
{
|
|
PGresult *result;
|
|
|
|
result = PQexec (db_conn,
|
|
"BEGIN");
|
|
if (PGRES_COMMAND_OK !=
|
|
PQresultStatus (result))
|
|
{
|
|
LOG_ERROR ("Failed to start transaction: %s\n",
|
|
PQresultErrorMessage (result));
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Roll back the current transaction of a database connection.
|
|
*
|
|
* @param db_conn the database connection
|
|
* @return #GNUNET_OK on success
|
|
*/
|
|
void
|
|
TALER_MINT_DB_rollback (PGconn *db_conn)
|
|
{
|
|
PGresult *result;
|
|
|
|
result = PQexec (db_conn,
|
|
"ROLLBACK");
|
|
GNUNET_break (PGRES_COMMAND_OK ==
|
|
PQresultStatus (result));
|
|
PQclear (result);
|
|
}
|
|
|
|
|
|
/**
|
|
* Commit the current transaction of a database connection.
|
|
*
|
|
* @param db_conn the database connection
|
|
* @return #GNUNET_OK on success
|
|
*/
|
|
int
|
|
TALER_MINT_DB_commit (PGconn *db_conn)
|
|
{
|
|
PGresult *result;
|
|
|
|
result = PQexec (db_conn,
|
|
"COMMIT");
|
|
if (PGRES_COMMAND_OK !=
|
|
PQresultStatus (result))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Locate the response for a /withdraw request under the
|
|
* key of the hash of the blinded message.
|
|
*
|
|
* @param db_conn database connection to use
|
|
* @param h_blind hash of the blinded message
|
|
* @param collectable corresponding collectable coin (blind signature)
|
|
* if a coin is found
|
|
* @return #GNUNET_SYSERR on internal error
|
|
* #GNUNET_NO if the collectable was not found
|
|
* #GNUNET_YES on success
|
|
*/
|
|
int
|
|
TALER_MINT_DB_get_collectable_blindcoin (PGconn *db_conn,
|
|
const struct GNUNET_HashCode *h_blind,
|
|
struct CollectableBlindcoin *collectable)
|
|
{
|
|
// FIXME: check logic!
|
|
PGresult *result;
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR (h_blind),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
char *sig_buf;
|
|
size_t sig_buf_size;
|
|
|
|
result = TALER_DB_exec_prepared (db_conn,
|
|
"get_collectable_blindcoins",
|
|
params);
|
|
|
|
if (PGRES_TUPLES_OK !=
|
|
PQresultStatus (result))
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
|
|
"Query failed: %s\n",
|
|
PQresultErrorMessage (result));
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
|
|
struct TALER_DB_ResultSpec rs[] = {
|
|
TALER_DB_RESULT_SPEC_VAR("blind_sig", &sig_buf, &sig_buf_size),
|
|
TALER_DB_RESULT_SPEC("denom_pub", &collectable->denom_pub),
|
|
TALER_DB_RESULT_SPEC("reserve_sig", &collectable->reserve_sig),
|
|
TALER_DB_RESULT_SPEC("reserve_pub", &collectable->reserve_pub),
|
|
TALER_DB_RESULT_SPEC_END
|
|
};
|
|
|
|
if (GNUNET_OK != TALER_DB_extract_result (result, rs, 0))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Store collectable bit coin under the corresponding
|
|
* hash of the blinded message.
|
|
*
|
|
* @param db_conn database connection to use
|
|
* @param h_blind hash of the blinded message
|
|
* @param collectable corresponding collectable coin (blind signature)
|
|
* if a coin is found
|
|
* @return #GNUNET_SYSERR on internal error
|
|
* #GNUNET_NO if the collectable was not found
|
|
* #GNUNET_YES on success
|
|
*/
|
|
int
|
|
TALER_MINT_DB_insert_collectable_blindcoin (PGconn *db_conn,
|
|
const struct GNUNET_HashCode *h_blind,
|
|
const struct CollectableBlindcoin *collectable)
|
|
{
|
|
// FIXME: check logic!
|
|
PGresult *result;
|
|
char *sig_buf;
|
|
size_t sig_buf_size;
|
|
|
|
sig_buf_size = GNUNET_CRYPTO_rsa_signature_encode (collectable->sig,
|
|
&sig_buf);
|
|
{
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR (&h_blind),
|
|
TALER_DB_QUERY_PARAM_PTR_SIZED (sig_buf, sig_buf_size),
|
|
TALER_DB_QUERY_PARAM_PTR (&collectable->denom_pub),
|
|
TALER_DB_QUERY_PARAM_PTR (&collectable->reserve_pub),
|
|
TALER_DB_QUERY_PARAM_PTR (&collectable->reserve_sig),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
|
|
result = TALER_DB_exec_prepared (db_conn,
|
|
"insert_collectable_blindcoins",
|
|
params);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
|
|
"Query failed: %s\n",
|
|
PQresultErrorMessage (result));
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
if (0 != strcmp ("1", PQcmdTuples (result)))
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
|
|
"Insert failed (updated '%s' tupes instead of '1')\n",
|
|
PQcmdTuples (result));
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
}
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Get all of the transaction history associated with the specified
|
|
* reserve.
|
|
*
|
|
* @param db_conn connection to use
|
|
* @param reserve_pub public key of the reserve
|
|
* @return known transaction history (NULL if reserve is unknown)
|
|
*/
|
|
struct ReserveHistory *
|
|
TALER_MINT_DB_get_reserve_history (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *reserve_pub)
|
|
{
|
|
// FIXME: implement logic!
|
|
PGresult *result;
|
|
// int res;
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR (reserve_pub),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
|
|
result = TALER_DB_exec_prepared (db_conn, "get_reserve", params);
|
|
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
|
|
"Query failed: %s\n",
|
|
PQresultErrorMessage (result));
|
|
PQclear (result);
|
|
return NULL;
|
|
}
|
|
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
return NULL;
|
|
}
|
|
#if 0
|
|
reserve->reserve_pub = *reserve_pub;
|
|
|
|
struct TALER_DB_ResultSpec rs[] = {
|
|
TALER_DB_RESULT_SPEC("status_sig", &reserve->status_sig),
|
|
TALER_DB_RESULT_SPEC("status_sign_pub", &reserve->status_sign_pub),
|
|
TALER_DB_RESULT_SPEC_END
|
|
};
|
|
|
|
res = TALER_DB_extract_result (result, rs, 0);
|
|
if (GNUNET_SYSERR == res)
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
{
|
|
if (GNUNET_OK !=
|
|
TALER_DB_extract_amount_nbo (result, 0,
|
|
"balance_value",
|
|
"balance_fraction",
|
|
"balance_currency",
|
|
&reserve->balance))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
}
|
|
|
|
/* FIXME: Add expiration?? */
|
|
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
#endif
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/**
|
|
* Free memory associated with the given reserve history.
|
|
*
|
|
* @param rh history to free.
|
|
*/
|
|
void
|
|
TALER_MINT_DB_free_reserve_history (struct ReserveHistory *rh)
|
|
{
|
|
// FIXME: implement
|
|
GNUNET_assert (0);
|
|
}
|
|
|
|
|
|
/**
|
|
* Check if we have the specified deposit already in the database.
|
|
*
|
|
* @param db_conn database connection
|
|
* @param deposit deposit to search for
|
|
* @return #GNUNET_YES if we know this operation,
|
|
* #GNUNET_NO if this deposit is unknown to us
|
|
*/
|
|
int
|
|
TALER_MINT_DB_have_deposit (PGconn *db_conn,
|
|
const struct Deposit *deposit)
|
|
{
|
|
// FIXME: check logic!
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR (&deposit->coin.coin_pub), // FIXME
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
PGresult *result;
|
|
|
|
result = TALER_DB_exec_prepared (db_conn,
|
|
"get_deposit",
|
|
params);
|
|
if (PGRES_TUPLES_OK !=
|
|
PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
return GNUNET_YES;
|
|
}
|
|
|
|
|
|
/**
|
|
* Insert information about deposited coin into the
|
|
* database.
|
|
*
|
|
* @param db_conn connection to the database
|
|
* @param deposit deposit information to store
|
|
* @return #GNUNET_OK on success, #GNUNET_SYSERR on error
|
|
*/
|
|
int
|
|
TALER_MINT_DB_insert_deposit (PGconn *db_conn,
|
|
const struct Deposit *deposit)
|
|
{
|
|
// FIXME: check logic!
|
|
struct TALER_DB_QueryParam params[]= {
|
|
TALER_DB_QUERY_PARAM_PTR (&deposit->coin.coin_pub),
|
|
TALER_DB_QUERY_PARAM_PTR (&deposit->coin.denom_pub), // FIXME!
|
|
TALER_DB_QUERY_PARAM_PTR (&deposit->coin.denom_sig), // FIXME!
|
|
TALER_DB_QUERY_PARAM_PTR (&deposit->transaction_id),
|
|
TALER_DB_QUERY_PARAM_PTR (&deposit->amount.value),
|
|
TALER_DB_QUERY_PARAM_PTR (&deposit->amount.fraction),
|
|
TALER_DB_QUERY_PARAM_PTR_SIZED (deposit->amount.currency,
|
|
strlen (deposit->amount.currency)),
|
|
TALER_DB_QUERY_PARAM_PTR (&deposit->merchant_pub),
|
|
TALER_DB_QUERY_PARAM_PTR (&deposit->h_contract),
|
|
TALER_DB_QUERY_PARAM_PTR (&deposit->h_wire),
|
|
TALER_DB_QUERY_PARAM_PTR (&deposit->csig),
|
|
TALER_DB_QUERY_PARAM_PTR_SIZED (deposit->wire,
|
|
strlen ("FIXME")), // FIXME! json!
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
PGresult *result;
|
|
|
|
result = TALER_DB_exec_prepared (db_conn, "insert_deposit", params);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Lookup refresh session data under the given public key.
|
|
*
|
|
* @param db_conn database handle to use
|
|
* @param refresh_session_pub public key to use for the lookup
|
|
* @param session[OUT] where to store the result
|
|
* @return #GNUNET_YES on success,
|
|
* #GNUNET_NO if not found,
|
|
* #GNUNET_SYSERR on DB failure
|
|
*/
|
|
int
|
|
TALER_MINT_DB_get_refresh_session (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *refresh_session_pub,
|
|
struct RefreshSession *session)
|
|
{
|
|
// FIXME: check logic!
|
|
int res;
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(refresh_session_pub),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
|
|
PGresult *result = TALER_DB_exec_prepared (db_conn, "get_refresh_session", params);
|
|
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
|
|
"Query failed: %s\n",
|
|
PQresultErrorMessage (result));
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
if (0 == PQntuples (result))
|
|
return GNUNET_NO;
|
|
|
|
GNUNET_assert (1 == PQntuples (result));
|
|
|
|
/* We're done if the caller is only interested in
|
|
* whether the session exists or not */
|
|
|
|
if (NULL == session)
|
|
return GNUNET_YES;
|
|
|
|
memset (session, 0, sizeof (struct RefreshSession));
|
|
|
|
struct TALER_DB_ResultSpec rs[] = {
|
|
TALER_DB_RESULT_SPEC("num_oldcoins", &session->num_oldcoins),
|
|
TALER_DB_RESULT_SPEC("num_newcoins", &session->num_newcoins),
|
|
TALER_DB_RESULT_SPEC("kappa", &session->kappa),
|
|
TALER_DB_RESULT_SPEC("noreveal_index", &session->noreveal_index),
|
|
TALER_DB_RESULT_SPEC_END
|
|
};
|
|
|
|
res = TALER_DB_extract_result (result, rs, 0);
|
|
|
|
if (GNUNET_OK != res)
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
if (TALER_DB_field_isnull (result, 0, "session_commit_sig"))
|
|
session->has_commit_sig = GNUNET_NO;
|
|
else
|
|
session->has_commit_sig = GNUNET_YES;
|
|
|
|
session->num_oldcoins = ntohs (session->num_oldcoins);
|
|
session->num_newcoins = ntohs (session->num_newcoins);
|
|
session->kappa = ntohs (session->kappa);
|
|
session->noreveal_index = ntohs (session->noreveal_index);
|
|
|
|
PQclear (result);
|
|
return GNUNET_YES;
|
|
}
|
|
|
|
|
|
/**
|
|
* Store new refresh session data under the given public key.
|
|
*
|
|
* @param db_conn database handle to use
|
|
* @param refresh_session_pub public key to use to locate the session
|
|
* @param session session data to store
|
|
* @return #GNUNET_YES on success,
|
|
* #GNUNET_SYSERR on DB failure
|
|
*/
|
|
int
|
|
TALER_MINT_DB_create_refresh_session (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub,
|
|
const struct RefreshSession *session)
|
|
{
|
|
// FIXME: actually store session data!
|
|
uint16_t noreveal_index;
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(session_pub),
|
|
TALER_DB_QUERY_PARAM_PTR(&noreveal_index),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
|
|
noreveal_index = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 1<<15);
|
|
noreveal_index = htonl (noreveal_index);
|
|
|
|
PGresult *result = TALER_DB_exec_prepared (db_conn, "insert_refresh_session", params);
|
|
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Update new refresh session with the new state after the
|
|
* /refresh/commit operation.
|
|
*
|
|
* @param db_conn database handle to use
|
|
* @param refresh_session_pub public key to use to locate the session
|
|
* @param noreveal_index index chosen for the client to not reveal
|
|
* @param commit_client_sig signature of the client over its commitment
|
|
* @return #GNUNET_YES on success,
|
|
* #GNUNET_SYSERR on DB failure
|
|
*/
|
|
int
|
|
TALER_MINT_DB_update_refresh_session (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub,
|
|
uint16_t noreveal_index,
|
|
const struct GNUNET_CRYPTO_EddsaSignature *commit_client_sig)
|
|
{
|
|
// FIXME: implement!
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
|
|
/**
|
|
* Test if the given /refresh/melt request is known to us.
|
|
*
|
|
* @param db_conn database connection
|
|
* @param melt melt operation
|
|
* @return #GNUNET_YES if known,
|
|
* #GNUENT_NO if not,
|
|
* #GNUNET_SYSERR on internal error
|
|
*/
|
|
int
|
|
TALER_MINT_DB_have_refresh_melt (PGconn *db_conn,
|
|
const struct RefreshMelt *melt)
|
|
{
|
|
// FIXME: check logic!
|
|
uint16_t oldcoin_index_nbo = htons (melt->oldcoin_index);
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(&melt->session_pub),
|
|
TALER_DB_QUERY_PARAM_PTR(&oldcoin_index_nbo),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
|
|
PGresult *result = TALER_DB_exec_prepared (db_conn,
|
|
"get_refresh_melt",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
GNUNET_break (1 == PQntuples (result));
|
|
PQclear (result);
|
|
return GNUNET_YES;
|
|
}
|
|
|
|
|
|
/**
|
|
* Store the given /refresh/melt request in the database.
|
|
*
|
|
* @param db_conn database connection
|
|
* @param melt melt operation
|
|
* @return #GNUNET_OK on success
|
|
* #GNUNET_SYSERR on internal error
|
|
*/
|
|
int
|
|
TALER_MINT_DB_insert_refresh_melt (PGconn *db_conn,
|
|
const struct RefreshMelt *melt)
|
|
{
|
|
// FIXME: check logic!
|
|
uint16_t oldcoin_index_nbo = htons (melt->oldcoin_index);
|
|
char *buf;
|
|
size_t buf_size;
|
|
PGresult *result;
|
|
|
|
buf_size = GNUNET_CRYPTO_rsa_public_key_encode (melt->coin.denom_pub,
|
|
&buf);
|
|
{
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(&melt->session_pub),
|
|
TALER_DB_QUERY_PARAM_PTR(&oldcoin_index_nbo),
|
|
TALER_DB_QUERY_PARAM_PTR(&melt->coin.coin_pub),
|
|
TALER_DB_QUERY_PARAM_PTR_SIZED(buf, buf_size),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
result = TALER_DB_exec_prepared (db_conn, "insert_refresh_melt", params);
|
|
}
|
|
GNUNET_free (buf);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Get information about melted coin details from the database.
|
|
*
|
|
* @param db_conn database connection
|
|
* @param session session key of the melt operation
|
|
* @param oldcoin_index index of the coin to retrieve
|
|
* @param melt melt data to fill in
|
|
* @return #GNUNET_OK on success
|
|
* #GNUNET_SYSERR on internal error
|
|
*/
|
|
int
|
|
TALER_MINT_DB_get_refresh_melt (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *session,
|
|
uint16_t oldcoin_index,
|
|
struct RefreshMelt *melt)
|
|
{
|
|
// FIXME: check logic!
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
|
|
/**
|
|
* Store information about the commitment of the
|
|
* given coin for the given refresh session in the database.
|
|
*
|
|
* @param db_conn database connection to use
|
|
* @param refresh_session_pub refresh session this commitment belongs to
|
|
* @param i set index (1st dimension)
|
|
* @param j coin index (2nd dimension), corresponds to refreshed (new) coins
|
|
* @param commit_coin coin commitment to store
|
|
* @return #GNUNET_OK on success
|
|
* #GNUNET_SYSERR on error
|
|
*/
|
|
int
|
|
TALER_MINT_DB_insert_refresh_commit_coin (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *refresh_session_pub,
|
|
unsigned int i,
|
|
unsigned int j,
|
|
const struct RefreshCommitCoin *commit_coin)
|
|
{
|
|
// FIXME: check logic!
|
|
uint16_t cnc_index_nbo = htons (i);
|
|
uint16_t newcoin_index_nbo = htons (j);
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(refresh_session_pub),
|
|
TALER_DB_QUERY_PARAM_PTR_SIZED(commit_coin->coin_ev, commit_coin->coin_ev_size),
|
|
TALER_DB_QUERY_PARAM_PTR(&cnc_index_nbo),
|
|
TALER_DB_QUERY_PARAM_PTR(&newcoin_index_nbo),
|
|
TALER_DB_QUERY_PARAM_PTR_SIZED(commit_coin->refresh_link->coin_priv_enc,
|
|
commit_coin->refresh_link->blinding_key_enc_size +
|
|
sizeof (struct GNUNET_CRYPTO_EcdsaPrivateKey)),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
|
|
PGresult *result = TALER_DB_exec_prepared (db_conn, "insert_refresh_commit_coin", params);
|
|
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
if (0 != strcmp ("1", PQcmdTuples (result)))
|
|
{
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Obtain information about the commitment of the
|
|
* given coin of the given refresh session from the database.
|
|
*
|
|
* @param db_conn database connection to use
|
|
* @param refresh_session_pub refresh session the commitment belongs to
|
|
* @param i set index (1st dimension)
|
|
* @param j coin index (2nd dimension), corresponds to refreshed (new) coins
|
|
* @param commit_coin[OUT] coin commitment to return
|
|
* @return #GNUNET_OK on success
|
|
* #GNUNET_NO if not found
|
|
* #GNUNET_SYSERR on error
|
|
*/
|
|
int
|
|
TALER_MINT_DB_get_refresh_commit_coin (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *refresh_session_pub,
|
|
unsigned int cnc_index,
|
|
unsigned int newcoin_index,
|
|
struct RefreshCommitCoin *cc)
|
|
{
|
|
// FIXME: check logic!
|
|
uint16_t cnc_index_nbo = htons (cnc_index);
|
|
uint16_t newcoin_index_nbo = htons (newcoin_index);
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(refresh_session_pub),
|
|
TALER_DB_QUERY_PARAM_PTR(&cnc_index_nbo),
|
|
TALER_DB_QUERY_PARAM_PTR(&newcoin_index_nbo),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
char *c_buf;
|
|
size_t c_buf_size;
|
|
char *rl_buf;
|
|
size_t rl_buf_size;
|
|
struct TALER_RefreshLinkEncrypted *rl;
|
|
|
|
PGresult *result = TALER_DB_exec_prepared (db_conn, "get_refresh_commit_coin", params);
|
|
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
|
|
struct TALER_DB_ResultSpec rs[] = {
|
|
TALER_DB_RESULT_SPEC_VAR("coin_ev", &c_buf, &c_buf_size),
|
|
TALER_DB_RESULT_SPEC_VAR("link_vector_enc", &rl_buf, &rl_buf_size),
|
|
TALER_DB_RESULT_SPEC_END
|
|
};
|
|
if (GNUNET_YES != TALER_DB_extract_result (result, rs, 0))
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
if (rl_buf_size < sizeof (struct GNUNET_CRYPTO_EcdsaPrivateKey))
|
|
{
|
|
GNUNET_free (c_buf);
|
|
GNUNET_free (rl_buf);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
rl = TALER_refresh_link_encrypted_decode (rl_buf,
|
|
rl_buf_size);
|
|
GNUNET_free (rl_buf);
|
|
cc->refresh_link = rl;
|
|
cc->coin_ev = c_buf;
|
|
cc->coin_ev_size = c_buf_size;
|
|
return GNUNET_YES;
|
|
}
|
|
|
|
|
|
/**
|
|
* Store the commitment to the given (encrypted) refresh link data
|
|
* for the given refresh session.
|
|
*
|
|
* @param db_conn database connection to use
|
|
* @param refresh_session_pub public key of the refresh session this
|
|
* commitment belongs with
|
|
* @param i set index (1st dimension)
|
|
* @param j coin index (2nd dimension), corresponds to melted (old) coins
|
|
* @param commit_link link information to store
|
|
* @return #GNUNET_SYSERR on internal error, #GNUNET_OK on success
|
|
*/
|
|
int
|
|
TALER_MINT_DB_insert_refresh_commit_link (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *refresh_session_pub,
|
|
unsigned int i,
|
|
unsigned int j,
|
|
const struct RefreshCommitLink *commit_link)
|
|
{
|
|
// FIXME: check logic!
|
|
uint16_t cnc_index_nbo = htons (i);
|
|
uint16_t oldcoin_index_nbo = htons (j);
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(refresh_session_pub),
|
|
TALER_DB_QUERY_PARAM_PTR(&commit_link->transfer_pub),
|
|
TALER_DB_QUERY_PARAM_PTR(&cnc_index_nbo),
|
|
TALER_DB_QUERY_PARAM_PTR(&oldcoin_index_nbo),
|
|
TALER_DB_QUERY_PARAM_PTR(&commit_link->shared_secret_enc),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
|
|
PGresult *result = TALER_DB_exec_prepared (db_conn,
|
|
"insert_refresh_commit_link",
|
|
params);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
if (0 != strcmp ("1", PQcmdTuples (result)))
|
|
{
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Obtain the commited (encrypted) refresh link data
|
|
* for the given refresh session.
|
|
*
|
|
* @param db_conn database connection to use
|
|
* @param refresh_session_pub public key of the refresh session this
|
|
* commitment belongs with
|
|
* @param i set index (1st dimension)
|
|
* @param j coin index (2nd dimension), corresponds to melted (old) coins
|
|
* @param cc[OUT] link information to return
|
|
* @return #GNUNET_SYSERR on internal error,
|
|
* #GNUNET_NO if commitment was not found
|
|
* #GNUNET_OK on success
|
|
*/
|
|
int
|
|
TALER_MINT_DB_get_refresh_commit_link (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EddsaPublicKey *refresh_session_pub,
|
|
unsigned int cnc_index,
|
|
unsigned int oldcoin_index,
|
|
struct RefreshCommitLink *cc)
|
|
{
|
|
// FIXME: check logic!
|
|
uint16_t cnc_index_nbo = htons (cnc_index);
|
|
uint16_t oldcoin_index_nbo = htons (oldcoin_index);
|
|
|
|
struct TALER_DB_QueryParam params[] = {
|
|
TALER_DB_QUERY_PARAM_PTR(refresh_session_pub),
|
|
TALER_DB_QUERY_PARAM_PTR(&cnc_index_nbo),
|
|
TALER_DB_QUERY_PARAM_PTR(&oldcoin_index_nbo),
|
|
TALER_DB_QUERY_PARAM_END
|
|
};
|
|
|
|
PGresult *result = TALER_DB_exec_prepared (db_conn,
|
|
"get_refresh_commit_link",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
break_db_err (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
|
|
struct TALER_DB_ResultSpec rs[] = {
|
|
TALER_DB_RESULT_SPEC("transfer_pub", &cc->transfer_pub),
|
|
TALER_DB_RESULT_SPEC("link_secret_enc", &cc->shared_secret_enc),
|
|
TALER_DB_RESULT_SPEC_END
|
|
};
|
|
|
|
if (GNUNET_YES != TALER_DB_extract_result (result, rs, 0))
|
|
{
|
|
PQclear (result);
|
|
GNUNET_free (cc);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Compile a list of all (historic) transactions performed
|
|
* with the given coin (/refresh/melt and /deposit operations).
|
|
*
|
|
* @param db_conn database connection
|
|
* @param coin_pub coin to investigate
|
|
* @return list of transactions, NULL if coin is fresh
|
|
*/
|
|
struct TALER_MINT_DB_TransactionList *
|
|
TALER_MINT_DB_get_coin_transactions (PGconn *db_conn,
|
|
const struct GNUNET_CRYPTO_EcdsaPublicKey *coin_pub)
|
|
{
|
|
// FIXME: check logic!
|
|
GNUNET_break (0); // FIXME: implement!
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/**
|
|
* Free linked list of transactions.
|
|
*
|
|
* @param list list to free
|
|
*/
|
|
void
|
|
TALER_MINT_DB_free_coin_transaction_list (struct TALER_MINT_DB_TransactionList *list)
|
|
{
|
|
// FIXME: check logic!
|
|
GNUNET_break (0);
|
|
}
|
|
|
|
|
|
/* end of mint_db.c */
|