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-rw-r--r--src/mint/mint_db.c1838
1 files changed, 1838 insertions, 0 deletions
diff --git a/src/mint/mint_db.c b/src/mint/mint_db.c
new file mode 100644
index 000000000..6dc025877
--- /dev/null
+++ b/src/mint/mint_db.c
@@ -0,0 +1,1838 @@
+/*
+ This file is part of TALER
+ (C) 2014 Christian Grothoff (and other contributing authors)
+
+ TALER is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file mint_db.c
+ * @brief Database access for the mint
+ * @author Florian Dold
+ */
+#include "platform.h"
+#include "taler_db_lib.h"
+#include "taler_signatures.h"
+#include "mint_db.h"
+#include "mint.h"
+#include <pthread.h>
+
+/**
+ * Thread-local database connection.
+ * Contains a pointer to PGconn or NULL.
+ */
+static pthread_key_t db_conn_threadlocal;
+
+
+/**
+ * Database connection string, as read from
+ * the configuration.
+ */
+static char *TALER_MINT_db_connection_cfg_str;
+
+
+#define break_db_err(result) do { \
+ GNUNET_break(0); \
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Database failure: %s\n", PQresultErrorMessage (result)); \
+ } while (0)
+
+/**
+ * Shorthand for exit jumps.
+ */
+#define EXITIF(cond) \
+ do { \
+ if (cond) { GNUNET_break (0); goto EXITIF_exit; } \
+ } while (0)
+
+int
+TALER_MINT_DB_get_collectable_blindcoin (PGconn *db_conn,
+ struct TALER_RSA_BlindedSignaturePurpose *blind_ev,
+ struct CollectableBlindcoin *collectable)
+{
+ PGresult *result;
+ struct TALER_DB_QueryParam params[] = {
+ TALER_DB_QUERY_PARAM_PTR (blind_ev),
+ TALER_DB_QUERY_PARAM_END
+ };
+ 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("blind_ev_sig", &collectable->ev_sig),
+ 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;
+ }
+ (void) memcpy (&collectable->ev, blind_ev, sizeof (struct TALER_RSA_BlindedSignaturePurpose));
+ PQclear (result);
+ return GNUNET_OK;
+}
+
+
+int
+TALER_MINT_DB_insert_collectable_blindcoin (PGconn *db_conn,
+ const struct CollectableBlindcoin *collectable)
+{
+ PGresult *result;
+ struct TALER_DB_QueryParam params[] = {
+ TALER_DB_QUERY_PARAM_PTR (&collectable->ev),
+ TALER_DB_QUERY_PARAM_PTR (&collectable->ev_sig),
+ 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;
+}
+
+
+int
+TALER_MINT_DB_get_reserve (PGconn *db_conn,
+ const struct GNUNET_CRYPTO_EddsaPublicKey *reserve_pub,
+ struct Reserve *reserve)
+{
+ 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 GNUNET_SYSERR;
+ }
+
+ if (0 == PQntuples (result))
+ {
+ PQclear (result);
+ return GNUNET_NO;
+ }
+
+ 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;
+ }
+
+ {
+ int fnums[] = {
+ PQfnumber (result, "balance_value"),
+ PQfnumber (result, "balance_fraction"),
+ PQfnumber (result, "balance_currency"),
+ };
+ if (GNUNET_OK != TALER_TALER_DB_extract_amount_nbo (result, 0, fnums, &reserve->balance))
+ {
+ GNUNET_break (0);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ }
+
+ /* FIXME: Add expiration?? */
+
+ PQclear (result);
+ return GNUNET_OK;
+}
+
+
+/* If fresh is GNUNET_YES, set some fields to NULL as they are not actually valid */
+int
+TALER_MINT_DB_update_reserve (PGconn *db_conn,
+ const struct Reserve *reserve,
+ int fresh)
+{
+ PGresult *result;
+ uint64_t stamp_sec;
+
+ stamp_sec = GNUNET_ntohll (GNUNET_TIME_absolute_ntoh (reserve->expiration).abs_value_us / 1000000);
+
+ struct TALER_DB_QueryParam params[] = {
+ TALER_DB_QUERY_PARAM_PTR (&reserve->reserve_pub),
+ TALER_DB_QUERY_PARAM_PTR (&reserve->balance.value),
+ TALER_DB_QUERY_PARAM_PTR (&reserve->balance.fraction),
+ TALER_DB_QUERY_PARAM_PTR_SIZED (&reserve->balance.currency,
+ strlen (reserve->balance.currency)),
+ TALER_DB_QUERY_PARAM_PTR (&reserve->status_sig),
+ TALER_DB_QUERY_PARAM_PTR (&reserve->status_sign_pub),
+ TALER_DB_QUERY_PARAM_PTR (&stamp_sec),
+ TALER_DB_QUERY_PARAM_END
+ };
+
+ /* set some fields to NULL if they are not actually valid */
+
+ if (GNUNET_YES == fresh)
+ {
+ unsigned i;
+ for (i = 4; i <= 7; i += 1)
+ {
+ params[i].data = NULL;
+ params[i].size = 0;
+ }
+ }
+
+ result = TALER_DB_exec_prepared (db_conn, "update_reserve", 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, "Update failed (updated '%s' tupes instead of '1')\n",
+ PQcmdTuples (result));
+ return GNUNET_SYSERR;
+ }
+
+ PQclear (result);
+ return GNUNET_OK;
+}
+
+
+
+int
+TALER_MINT_DB_prepare (PGconn *db_conn)
+{
+ PGresult *result;
+
+ result = PQprepare (db_conn, "get_reserve",
+ "SELECT "
+ " balance_value, balance_fraction, balance_currency "
+ ",expiration_date, blind_session_pub, blind_session_priv"
+ ",status_sig, status_sign_pub "
+ "FROM reserves "
+ "WHERE reserve_pub=$1 "
+ "LIMIT 1; ",
+ 1, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "update_reserve",
+ "UPDATE reserves "
+ "SET"
+ " balance_value=$2 "
+ ",balance_fraction=$3 "
+ ",balance_currency=$4 "
+ ",status_sig=$5 "
+ ",status_sign_pub=$6 "
+ ",expiration_date=$7 "
+ "WHERE reserve_pub=$1 ",
+ 9, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+ result = PQprepare (db_conn, "insert_collectable_blindcoins",
+ "INSERT INTO collectable_blindcoins ( "
+ " blind_ev, blind_ev_sig "
+ ",denom_pub, reserve_pub, reserve_sig) "
+ "VALUES ($1, $2, $3, $4, $5)",
+ 6, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "get_collectable_blindcoins",
+ "SELECT "
+ "blind_ev_sig, denom_pub, reserve_sig, reserve_pub "
+ "FROM collectable_blindcoins "
+ "WHERE blind_ev = $1",
+ 1, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "insert_reserve_order",
+ "SELECT "
+ " blind_ev, blind_ev_sig, denom_pub, reserve_sig, reserve_pub "
+ "FROM collectable_blindcoins "
+ "WHERE blind_session_pub = $1",
+ 1, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ /* FIXME: does it make sense to store these computed values in the DB? */
+ result = PQprepare (db_conn, "get_refresh_session",
+ "SELECT "
+ " (SELECT count(*) FROM refresh_melt WHERE session_pub = $1)::INT2 as num_oldcoins "
+ ",(SELECT count(*) FROM refresh_blind_session_keys "
+ " WHERE session_pub = $1 and cnc_index = 0)::INT2 as num_newcoins "
+ ",(SELECT count(*) FROM refresh_blind_session_keys "
+ " WHERE session_pub = $1 and newcoin_index = 0)::INT2 as kappa "
+ ",noreveal_index"
+ ",session_commit_sig "
+ ",reveal_ok "
+ "FROM refresh_sessions "
+ "WHERE session_pub = $1",
+ 1, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "get_known_coin",
+ "SELECT "
+ " coin_pub, denom_pub, denom_sig "
+ ",expended_value, expended_fraction, expended_currency "
+ ",refresh_session_pub "
+ "FROM known_coins "
+ "WHERE coin_pub = $1",
+ 1, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "update_known_coin",
+ "UPDATE known_coins "
+ "SET "
+ " denom_pub = $2 "
+ ",denom_sig = $3 "
+ ",expended_value = $4 "
+ ",expended_fraction = $5 "
+ ",expended_currency = $6 "
+ ",refresh_session_pub = $7 "
+ "WHERE "
+ " coin_pub = $1 ",
+ 7, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "insert_known_coin",
+ "INSERT INTO known_coins ("
+ " coin_pub"
+ ",denom_pub"
+ ",denom_sig"
+ ",expended_value"
+ ",expended_fraction"
+ ",expended_currency"
+ ",refresh_session_pub"
+ ")"
+ "VALUES ($1,$2,$3,$4,$5,$6,$7)",
+ 7, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "get_refresh_commit_link",
+ "SELECT "
+ " transfer_pub "
+ ",link_secret_enc "
+ "FROM refresh_commit_link "
+ "WHERE session_pub = $1 AND cnc_index = $2 AND oldcoin_index = $3",
+ 3, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "get_refresh_commit_coin",
+ "SELECT "
+ " link_vector_enc "
+ ",coin_ev "
+ "FROM refresh_commit_coin "
+ "WHERE session_pub = $1 AND cnc_index = $2 AND newcoin_index = $3",
+ 3, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "insert_refresh_order",
+ "INSERT INTO refresh_order ( "
+ " newcoin_index "
+ ",session_pub "
+ ",denom_pub "
+ ") "
+ "VALUES ($1, $2, $3) ",
+ 3, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "insert_refresh_melt",
+ "INSERT INTO refresh_melt ( "
+ " session_pub "
+ ",oldcoin_index "
+ ",coin_pub "
+ ",denom_pub "
+ ") "
+ "VALUES ($1, $2, $3, $4) ",
+ 3, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "get_refresh_order",
+ "SELECT denom_pub "
+ "FROM refresh_order "
+ "WHERE session_pub = $1 AND newcoin_index = $2",
+ 2, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "get_refresh_collectable",
+ "SELECT ev_sig "
+ "FROM refresh_collectable "
+ "WHERE session_pub = $1 AND newcoin_index = $2",
+ 2, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "get_refresh_melt",
+ "SELECT coin_pub "
+ "FROM refresh_melt "
+ "WHERE session_pub = $1 AND oldcoin_index = $2",
+ 2, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "insert_refresh_session",
+ "INSERT INTO refresh_sessions ( "
+ " session_pub "
+ ",noreveal_index "
+ ") "
+ "VALUES ($1, $2) ",
+ 2, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "insert_refresh_commit_link",
+ "INSERT INTO refresh_commit_link ( "
+ " session_pub "
+ ",transfer_pub "
+ ",cnc_index "
+ ",oldcoin_index "
+ ",link_secret_enc "
+ ") "
+ "VALUES ($1, $2, $3, $4, $5) ",
+ 5, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "insert_refresh_commit_coin",
+ "INSERT INTO refresh_commit_coin ( "
+ " session_pub "
+ ",coin_ev "
+ ",cnc_index "
+ ",newcoin_index "
+ ",link_vector_enc "
+ ") "
+ "VALUES ($1, $2, $3, $4, $5) ",
+ 5, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "insert_refresh_collectable",
+ "INSERT INTO refresh_collectable ( "
+ " session_pub "
+ ",newcoin_index "
+ ",ev_sig "
+ ") "
+ "VALUES ($1, $2, $3) ",
+ 3, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "set_reveal_ok",
+ "UPDATE refresh_sessions "
+ "SET reveal_ok = TRUE "
+ "WHERE session_pub = $1 ",
+ 1, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "get_link",
+ "SELECT link_vector_enc, ro.denom_pub, ev_sig "
+ "FROM refresh_melt rm "
+ " JOIN refresh_order ro USING (session_pub) "
+ " JOIN refresh_commit_coin rcc USING (session_pub) "
+ " JOIN refresh_sessions rs USING (session_pub) "
+ " JOIN refresh_collectable rc USING (session_pub) "
+ "WHERE rm.coin_pub = $1 "
+ "AND ro.newcoin_index = rcc.newcoin_index "
+ "AND ro.newcoin_index = rc.newcoin_index "
+ "AND rcc.cnc_index = rs.noreveal_index % ( "
+ " SELECT count(*) FROM refresh_commit_coin rcc2 "
+ " WHERE rcc2.newcoin_index = 0 AND rcc2.session_pub = rs.session_pub "
+ " ) ",
+ 1, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ result = PQprepare (db_conn, "get_transfer",
+ "SELECT transfer_pub, link_secret_enc "
+ "FROM refresh_melt rm "
+ " JOIN refresh_commit_link rcl USING (session_pub) "
+ " JOIN refresh_sessions rs USING (session_pub) "
+ "WHERE rm.coin_pub = $1 "
+ "AND rm.oldcoin_index = rcl.oldcoin_index "
+ "AND rcl.cnc_index = rs.noreveal_index % ( "
+ " SELECT count(*) FROM refresh_commit_coin rcc2 "
+ " WHERE newcoin_index = 0 AND rcc2.session_pub = rm.session_pub "
+ " ) ",
+ 1, NULL);
+ if (PGRES_COMMAND_OK != PQresultStatus(result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+
+ if (GNUNET_OK != TALER_MINT_DB_prepare_deposits (db_conn))
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+
+ return GNUNET_OK;
+}
+
+
+/**
+ * Roll back the current transaction of a database connection.
+ *
+ * @param db_conn the database connection
+ * @return GNUNET_OK on success
+ */
+int
+TALER_MINT_DB_rollback (PGconn *db_conn)
+{
+ PGresult *result;
+
+ result = PQexec(db_conn, "ROLLBACK");
+ if (PGRES_COMMAND_OK != PQresultStatus (result))
+ {
+ PQclear (result);
+ GNUNET_break (0);
+ 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
+ */
+int
+TALER_MINT_DB_commit (PGconn *db_conn)
+{
+ PGresult *result;
+
+ result = PQexec(db_conn, "COMMIT");
+ if (PGRES_COMMAND_OK != PQresultStatus (result))
+ {
+ PQclear (result);
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+
+ PQclear (result);
+ return GNUNET_OK;
+}
+
+
+/**
+ * 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))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Can't start transaction: %s\n", PQresultErrorMessage (result));
+ PQclear (result);
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+
+ PQclear (result);
+ return GNUNET_OK;
+}
+
+
+/**
+ * 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 TALER_RSA_PublicKeyBinaryEncoded *denom_pub)
+{
+ uint16_t newcoin_index_nbo = htons (newcoin_index);
+ 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(denom_pub),
+ TALER_DB_QUERY_PARAM_END
+ };
+
+ PGresult *result = TALER_DB_exec_prepared (db_conn, "insert_refresh_order", 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;
+}
+
+
+int
+TALER_MINT_DB_get_refresh_session (PGconn *db_conn,
+ const struct GNUNET_CRYPTO_EddsaPublicKey *refresh_session_pub,
+ struct RefreshSession *session)
+{
+ 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));
+
+ session->session_pub = *refresh_session_pub;
+
+ 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("reveal_ok", &session->reveal_ok),
+ 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;
+}
+
+
+int
+TALER_MINT_DB_get_known_coin (PGconn *db_conn, struct GNUNET_CRYPTO_EcdsaPublicKey *coin_pub,
+ struct KnownCoin *known_coin)
+{
+ int res;
+ 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_known_coin", 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));
+
+ /* extract basic information about the known coin */
+
+ {
+ struct TALER_DB_ResultSpec rs[] = {
+ TALER_DB_RESULT_SPEC("coin_pub", &known_coin->public_info.coin_pub),
+ TALER_DB_RESULT_SPEC("denom_pub", &known_coin->public_info.denom_pub),
+ TALER_DB_RESULT_SPEC("denom_sig", &known_coin->public_info.denom_sig),
+ TALER_DB_RESULT_SPEC_END
+ };
+
+ if (GNUNET_OK != (res = TALER_DB_extract_result (result, rs, 0)))
+ {
+ GNUNET_break (0);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ }
+
+ /* extract the expended amount of the coin */
+
+ if (GNUNET_OK != TALER_DB_extract_amount (result, 0,
+ "expended_value",
+ "expended_fraction",
+ "expended_currency",
+ &known_coin->expended_balance))
+ {
+ GNUNET_break (0);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+
+ /* extract the refresh session of the coin or mark it as missing */
+
+ {
+ struct TALER_DB_ResultSpec rs[] = {
+ TALER_DB_RESULT_SPEC("refresh_session_pub", &known_coin->refresh_session_pub),
+ TALER_DB_RESULT_SPEC_END
+ };
+
+ if (GNUNET_SYSERR == (res = TALER_DB_extract_result (result, rs, 0)))
+ {
+ GNUNET_break (0);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ if (GNUNET_NO == res)
+ {
+ known_coin->is_refreshed = GNUNET_NO;
+ memset (&known_coin->refresh_session_pub, 0, sizeof (struct GNUNET_CRYPTO_EddsaPublicKey));
+ }
+ else
+ {
+ known_coin->is_refreshed = GNUNET_YES;
+ }
+ }
+
+ PQclear (result);
+ return GNUNET_YES;
+}
+
+
+int
+TALER_MINT_DB_create_refresh_session (PGconn *db_conn,
+ const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub)
+{
+ 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;
+}
+
+
+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;
+}
+
+
+int
+TALER_MINT_DB_update_known_coin (PGconn *db_conn,
+ const struct KnownCoin *known_coin)
+{
+ struct TALER_AmountNBO expended_nbo = TALER_amount_hton (known_coin->expended_balance);
+ struct TALER_DB_QueryParam params[] = {
+ TALER_DB_QUERY_PARAM_PTR(&known_coin->public_info.coin_pub),
+ TALER_DB_QUERY_PARAM_PTR(&known_coin->public_info.denom_pub),
+ TALER_DB_QUERY_PARAM_PTR(&known_coin->public_info.denom_sig),
+ TALER_DB_QUERY_PARAM_PTR(&expended_nbo.value),
+ TALER_DB_QUERY_PARAM_PTR(&expended_nbo.fraction),
+ TALER_DB_QUERY_PARAM_PTR_SIZED(expended_nbo.currency, strlen (expended_nbo.currency)),
+ TALER_DB_QUERY_PARAM_PTR(&known_coin->refresh_session_pub),
+ TALER_DB_QUERY_PARAM_END
+ };
+
+ if (GNUNET_NO == known_coin->is_refreshed)
+ {
+ // Mind the magic index!
+ params[6].data = NULL;
+ params[6].size = 0;
+ }
+
+ PGresult *result = TALER_DB_exec_prepared (db_conn, "update_known_coin", params);
+
+ if (PGRES_COMMAND_OK != PQresultStatus (result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+
+ if (0 != strcmp ("1", PQcmdTuples (result)))
+ {
+ PQclear (result);
+ // return 'no' here (don't fail) so that we can
+ // insert if update fails (=> "upsert")
+ return GNUNET_NO;
+ }
+
+ PQclear (result);
+ return GNUNET_YES;
+}
+
+int
+TALER_MINT_DB_insert_known_coin (PGconn *db_conn,
+ const struct KnownCoin *known_coin)
+{
+ struct TALER_AmountNBO expended_nbo = TALER_amount_hton (known_coin->expended_balance);
+ struct TALER_DB_QueryParam params[] = {
+ TALER_DB_QUERY_PARAM_PTR(&known_coin->public_info.coin_pub),
+ TALER_DB_QUERY_PARAM_PTR(&known_coin->public_info.denom_pub),
+ TALER_DB_QUERY_PARAM_PTR(&known_coin->public_info.denom_sig),
+ TALER_DB_QUERY_PARAM_PTR(&expended_nbo.value),
+ TALER_DB_QUERY_PARAM_PTR(&expended_nbo.fraction),
+ TALER_DB_QUERY_PARAM_PTR_SIZED(&expended_nbo.currency, strlen (expended_nbo.currency)),
+ TALER_DB_QUERY_PARAM_PTR(&known_coin->refresh_session_pub),
+ TALER_DB_QUERY_PARAM_END
+ };
+
+ if (GNUNET_NO == known_coin->is_refreshed)
+ {
+ // Mind the magic index!
+ params[6].data = NULL;
+ params[6].size = 0;
+ }
+
+ PGresult *result = TALER_DB_exec_prepared (db_conn, "insert_known_coin", params);
+
+ if (PGRES_COMMAND_OK != PQresultStatus (result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+
+ if (0 != strcmp ("1", PQcmdTuples (result)))
+ {
+ PQclear (result);
+ // return 'no' here (don't fail) so that we can
+ // update if insert fails (=> "upsert")
+ return GNUNET_NO;
+ }
+
+ PQclear (result);
+ return GNUNET_YES;
+}
+
+
+int
+TALER_MINT_DB_upsert_known_coin (PGconn *db_conn, struct KnownCoin *known_coin)
+{
+ int ret;
+ ret = TALER_MINT_DB_update_known_coin (db_conn, known_coin);
+ if (GNUNET_SYSERR == ret)
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+ if (GNUNET_YES == ret)
+ return GNUNET_YES;
+ return TALER_MINT_DB_insert_known_coin (db_conn, known_coin);
+}
+
+
+int
+TALER_MINT_DB_insert_refresh_commit_link (PGconn *db_conn, struct RefreshCommitLink *commit_link)
+{
+ uint16_t cnc_index_nbo = htons (commit_link->cnc_index);
+ uint16_t oldcoin_index_nbo = htons (commit_link->oldcoin_index);
+ struct TALER_DB_QueryParam params[] = {
+ TALER_DB_QUERY_PARAM_PTR(&commit_link->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_SIZED(&commit_link->shared_secret_enc, sizeof (struct GNUNET_HashCode)),
+ 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;
+}
+
+
+int
+TALER_MINT_DB_insert_refresh_commit_coin (PGconn *db_conn, struct RefreshCommitCoin *commit_coin)
+{
+ uint16_t cnc_index_nbo = htons (commit_coin->cnc_index);
+ uint16_t newcoin_index_nbo = htons (commit_coin->newcoin_index);
+ struct TALER_DB_QueryParam params[] = {
+ TALER_DB_QUERY_PARAM_PTR(&commit_coin->session_pub),
+ TALER_DB_QUERY_PARAM_PTR(&commit_coin->coin_ev),
+ TALER_DB_QUERY_PARAM_PTR(&cnc_index_nbo),
+ TALER_DB_QUERY_PARAM_PTR(&newcoin_index_nbo),
+ TALER_DB_QUERY_PARAM_PTR_SIZED(&commit_coin->link_enc, sizeof (struct LinkData)),
+ 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;
+}
+
+
+int
+TALER_MINT_DB_get_refresh_commit_link (PGconn *db_conn,
+ const struct GNUNET_CRYPTO_EddsaPublicKey *refresh_session_pub,
+ int cnc_index, int oldcoin_index,
+ struct RefreshCommitLink *cc)
+{
+ 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
+ };
+
+ cc->cnc_index = cnc_index;
+ cc->oldcoin_index = oldcoin_index;
+ cc->session_pub = *refresh_session_pub;
+
+ 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_SIZED("link_secret_enc", &cc->shared_secret_enc,
+ TALER_REFRESH_SHARED_SECRET_LENGTH),
+ 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_YES;
+}
+
+
+int
+TALER_MINT_DB_get_refresh_commit_coin (PGconn *db_conn,
+ const struct GNUNET_CRYPTO_EddsaPublicKey *refresh_session_pub,
+ int cnc_index, int newcoin_index,
+ struct RefreshCommitCoin *cc)
+{
+ uint16_t cnc_index_nbo = htons (cnc_index);
+ uint16_t newcoin_index_nbo = htons (newcoin_index);
+
+ cc->cnc_index = cnc_index;
+ cc->newcoin_index = newcoin_index;
+ cc->session_pub = *refresh_session_pub;
+
+ 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
+ };
+
+ 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("coin_ev", &cc->coin_ev),
+ TALER_DB_RESULT_SPEC_SIZED("link_vector_enc", &cc->link_enc,
+ TALER_REFRESH_LINK_LENGTH),
+ TALER_DB_RESULT_SPEC_END
+ };
+
+ if (GNUNET_YES != TALER_DB_extract_result (result, rs, 0))
+ {
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+
+ PQclear (result);
+ return GNUNET_YES;
+}
+
+
+int
+TALER_MINT_DB_get_refresh_order (PGconn *db_conn,
+ uint16_t newcoin_index,
+ const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub,
+ struct TALER_RSA_PublicKeyBinaryEncoded *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 GNUNET_SYSERR;
+ }
+
+ if (0 == PQntuples (result))
+ {
+ PQclear (result);
+ return GNUNET_NO;
+ }
+
+ GNUNET_assert (1 == PQntuples (result));
+
+ struct TALER_DB_ResultSpec rs[] = {
+ TALER_DB_RESULT_SPEC("denom_pub", denom_pub),
+ 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;
+}
+
+
+int
+TALER_MINT_DB_insert_refresh_collectable (PGconn *db_conn,
+ uint16_t newcoin_index,
+ const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub,
+ const struct TALER_RSA_Signature *ev_sig)
+{
+ 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_PTR(ev_sig),
+ TALER_DB_QUERY_PARAM_END
+ };
+
+ PGresult *result = TALER_DB_exec_prepared (db_conn, "insert_refresh_collectable", params);
+
+ if (PGRES_COMMAND_OK != PQresultStatus (result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+
+ PQclear (result);
+ return GNUNET_OK;
+}
+
+
+int
+TALER_MINT_DB_get_refresh_collectable (PGconn *db_conn,
+ uint16_t newcoin_index,
+ const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub,
+ struct TALER_RSA_Signature *ev_sig)
+{
+
+ 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 GNUNET_SYSERR;
+ }
+
+ if (0 == PQntuples (result))
+ {
+ PQclear (result);
+ return GNUNET_NO;
+ }
+
+ GNUNET_assert (1 == PQntuples (result));
+
+ struct TALER_DB_ResultSpec rs[] = {
+ TALER_DB_RESULT_SPEC("ev_sig", ev_sig),
+ 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;
+}
+
+
+
+int
+TALER_MINT_DB_insert_refresh_melt (PGconn *db_conn,
+ const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub,
+ uint16_t oldcoin_index,
+ const struct GNUNET_CRYPTO_EcdsaPublicKey *coin_pub,
+ const struct TALER_RSA_PublicKeyBinaryEncoded *denom_pub)
+{
+ uint16_t oldcoin_index_nbo = htons (oldcoin_index);
+ struct TALER_DB_QueryParam params[] = {
+ TALER_DB_QUERY_PARAM_PTR(session_pub),
+ TALER_DB_QUERY_PARAM_PTR(&oldcoin_index_nbo),
+ TALER_DB_QUERY_PARAM_PTR(coin_pub),
+ TALER_DB_QUERY_PARAM_PTR(denom_pub),
+ TALER_DB_QUERY_PARAM_END
+ };
+
+ PGresult *result = TALER_DB_exec_prepared (db_conn, "insert_refresh_melt", params);
+
+ if (PGRES_COMMAND_OK != PQresultStatus (result))
+ {
+ break_db_err (result);
+ PQclear (result);
+ return GNUNET_SYSERR;
+ }
+ PQclear (result);
+ return GNUNET_OK;
+}
+
+
+
+int
+TALER_MINT_DB_get_refresh_melt (PGconn *db_conn,
+ const struct GNUNET_CRYPTO_EddsaPublicKey *session_pub,
+ uint16_t oldcoin_index,
+ struct GNUNET_CRYPTO_EcdsaPublicKey *coin_pub)
+{
+ uint16_t oldcoin_index_nbo = htons (oldcoin_index);
+ struct TALER_DB_QueryParam params[] = {
+ TALER_DB_QUERY_PARAM_PTR(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_assert (1 == PQntuples (result));
+
+ struct TALER_DB_ResultSpec rs[] = {
+ TALER_DB_RESULT_SPEC("coin_pub", coin_pub),
+ 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;
+}
+
+
+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 LinkDataEnc link_data_enc;
+ struct TALER_RSA_PublicKeyBinaryEncoded denom_pub;
+ struct TALER_RSA_Signature ev_sig;
+ struct TALER_DB_ResultSpec rs[] = {
+ TALER_DB_RESULT_SPEC("link_vector_enc", &link_data_enc),
+ TALER_DB_RESULT_SPEC("denom_pub", &denom_pub),
+ TALER_DB_RESULT_SPEC("ev_sig", &ev_sig),
+ TALER_DB_RESULT_SPEC_END
+ };
+
+ if (GNUNET_OK != TALER_DB_extract_result (result, rs, i))
+ {
+ PQclear (result);
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+
+ if (GNUNET_OK != (res = link_iter (cls, &link_data_enc, &denom_pub, &ev_sig)))
+ {
+ GNUNET_assert (GNUNET_SYSERR != res);
+ PQclear (result);
+ return res;
+ }
+ }
+
+ PQclear (result);
+ 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 SharedSecretEnc *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;
+}
+
+
+int
+TALER_MINT_DB_init_deposits (PGconn *conn, int tmp)
+{
+ const char *tmp_str = (1 == tmp) ? "TEMPORARY" : "";
+ char *sql;
+ PGresult *res;
+ int ret;
+
+ res = NULL;
+ (void) GNUNET_asprintf (&sql,
+ "CREATE %1$s TABLE IF NOT EXISTS deposits ("
+ " coin_pub BYTEA NOT NULL PRIMARY KEY CHECK (length(coin_pub)=32)"
+ ",denom_pub BYTEA NOT NULL CHECK (length(denom_pub)=32)"
+ ",transaction_id INT8 NOT NULL"
+ ",amount_value INT4 NOT NULL"
+ ",amount_fraction INT4 NOT NULL"
+ ",amount_currency VARCHAR(4) NOT NULL"
+ ",merchant_pub BYTEA NOT NULL"
+ ",h_contract BYTEA NOT NULL CHECK (length(h_contract)=64)"
+ ",h_wire BYTEA NOT NULL CHECK (length(h_wire)=64)"
+ ",coin_sig BYTEA NOT NULL CHECK (length(coin_sig)=64)"
+ ",wire TEXT NOT NULL"
+ ")",
+ tmp_str);
+ res = PQexec (conn, sql);
+ GNUNET_free (sql);
+ if (PGRES_COMMAND_OK != PQresultStatus (res))
+ {
+ break_db_err (res);
+ ret = GNUNET_SYSERR;
+ }
+ else
+ ret = GNUNET_OK;
+ PQclear (res);
+ return ret;
+}
+
+int
+TALER_MINT_DB_prepare_deposits (PGconn *db_conn)
+{
+ PGresult *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;
+}
+
+
+int
+TALER_MINT_DB_insert_deposit (PGconn *db_conn,
+ const struct Deposit *deposit)
+{
+ struct TALER_DB_QueryParam params[]= {
+ TALER_DB_QUERY_PARAM_PTR (&deposit->coin_pub),
+ TALER_DB_QUERY_PARAM_PTR (&deposit->denom_pub),
+ 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->coin_sig),
+ TALER_DB_QUERY_PARAM_PTR_SIZED (deposit->wire, strlen(deposit->wire)),
+ 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;
+}
+
+int
+TALER_MINT_DB_get_deposit (PGconn *db_conn,
+ const struct GNUNET_CRYPTO_EddsaPublicKey *coin_pub,
+ struct Deposit **r_deposit)
+{
+ struct TALER_DB_QueryParam params[] = {
+ TALER_DB_QUERY_PARAM_PTR (coin_pub),
+ TALER_DB_QUERY_PARAM_END
+ };
+ PGresult *result;
+ struct Deposit *deposit;
+
+ deposit = NULL;
+ result = TALER_DB_exec_prepared (db_conn, "get_deposit", params);
+ if (PGRES_TUPLES_OK != PQresultStatus (result))
+ {
+ break_db_err (result);
+ goto EXITIF_exit;
+ }
+
+ if (0 == PQntuples (result))
+ {
+ PQclear (result);
+ return GNUNET_NO;
+ }
+
+ if (1 != PQntuples (result))
+ {
+ GNUNET_break (0);
+ goto EXITIF_exit;
+ }
+
+ {
+ deposit = GNUNET_malloc (sizeof (struct Deposit)); /* Without wire data */
+ struct TALER_DB_ResultSpec rs[] = {
+ TALER_DB_RESULT_SPEC ("coin_pub", &deposit->coin_pub),
+ TALER_DB_RESULT_SPEC ("denom_pub", &deposit->denom_pub),
+ TALER_DB_RESULT_SPEC ("coin_sig", &deposit->coin_sig),
+ TALER_DB_RESULT_SPEC ("transaction_id", &deposit->transaction_id),
+ TALER_DB_RESULT_SPEC ("merchant_pub", &deposit->merchant_pub),
+ TALER_DB_RESULT_SPEC ("h_contract", &deposit->h_contract),
+ TALER_DB_RESULT_SPEC ("h_wire", &deposit->h_wire),
+ TALER_DB_RESULT_SPEC_END
+ };
+ EXITIF (GNUNET_OK != TALER_DB_extract_result (result, rs, 0));
+ EXITIF (GNUNET_OK != TALER_DB_extract_amount_nbo (result, 0,
+ "amount_value",
+ "amount_fraction",
+ "amount_currency",
+ &deposit->amount));
+ deposit->purpose.purpose = htonl (TALER_SIGNATURE_DEPOSIT);
+ deposit->purpose.size = htonl (sizeof (struct Deposit)
+ - offsetof (struct Deposit, purpose));
+ }
+
+ PQclear (result);
+ *r_deposit = deposit;
+ return GNUNET_OK;
+
+EXITIF_exit:
+ PQclear (result);
+ GNUNET_free_non_null (deposit);
+ deposit = NULL;
+ return GNUNET_SYSERR;
+}
+
+
+
+/**
+ * Get the thread-local database-handle.
+ * Connect to the db if the connection does not exist yet.
+ *
+ * @param 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))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "db 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;
+}
+
+
+/**
+ * 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))
+ {
+ fprintf (stderr,
+ "Can't create pthread key.\n");
+ return GNUNET_SYSERR;
+ }
+ TALER_MINT_db_connection_cfg_str = GNUNET_strdup (connection_cfg);
+ return GNUNET_OK;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-25 15:01:05 +0000