Move table creation logic to DB layer. Also support temporary schema creation for the sake of testing
This commit is contained in:
Sree Harsha Totakura
parent
b82a593dbb
commit
0acd5714e0
@ -13,11 +13,13 @@
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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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* @author Sree Harsha Totakura
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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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@ -32,6 +34,7 @@
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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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@ -45,7 +48,6 @@ static pthread_key_t db_conn_threadlocal;
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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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@ -60,6 +62,213 @@ static char *TALER_MINT_db_connection_cfg_str;
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} while (0)
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#define SQLEXEC_(conn, sql, result) \
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do { \
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result = PQexec (conn, sql); \
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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); result = NULL; \
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goto SQLEXEC_fail; \
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} \
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PQclear (result); result = NULL; \
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} while (0)
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/**
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* Set the given connection to use a temporary schema
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*
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* @param db the database connection
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* @return #GNUNET_OK upon success; #GNUNET_SYSERR upon error
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*/
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static int
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set_temporary_schema (PGconn *db)
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{
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PGresult *result;
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SQLEXEC_(db,
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"CREATE SCHEMA IF NOT EXISTS " TALER_TEMP_SCHEMA_NAME ";"
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"SET search_path to " TALER_TEMP_SCHEMA_NAME ";",
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result);
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return GNUNET_OK;
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SQLEXEC_fail:
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return GNUNET_SYSERR;
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}
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/**
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* Drop the temporary taler schema. This is only useful for testcases
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*
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* @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
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*/
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int
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TALER_MINT_DB_drop_temporary (PGconn *db)
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{
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PGresult *result;
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SQLEXEC_ (db,
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"DROP SCHEMA " TALER_TEMP_SCHEMA_NAME " CASCADE;",
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result);
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return GNUNET_OK;
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SQLEXEC_fail:
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return GNUNET_SYSERR;
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}
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/**
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* Create the necessary tables if they are not present
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*
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* @param temporary should we use a temporary schema
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* @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
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*/
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int
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TALER_MINT_DB_create_tables (int temporary)
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{
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PGresult *result;
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PGconn *conn;
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result = NULL;
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conn = PQconnectdb (TALER_MINT_db_connection_cfg_str);
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if (CONNECTION_OK != PQstatus (conn))
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{
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LOG_ERROR ("Database connection failed: %s\n",
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PQerrorMessage (conn));
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GNUNET_break (0);
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return GNUNET_SYSERR;
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}
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if ((GNUNET_YES == temporary)
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&& (GNUNET_SYSERR == set_temporary_schema (conn)))
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{
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PQfinish (conn);
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return GNUNET_SYSERR;
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}
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#define SQLEXEC(sql) SQLEXEC_(conn, sql, result);
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/* reserves table is for summarization of a reserve. It is updated when new
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funds are added and existing funds are withdrawn */
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SQLEXEC ("CREATE TABLE IF NOT EXISTS reserves"
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"("
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" reserve_pub BYTEA PRIMARY KEY"
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",current_balance_value INT4 NOT NULL"
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",current_balance_fraction INT4 NOT NULL"
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",balance_currency VARCHAR(4) NOT NULL"
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",expiration_date INT8 NOT NULL"
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")");
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/* reserves_in table collects the transactions which transfer funds into the
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reserve. The amount and expiration date for the corresponding reserve are
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updated when new transfer funds are added. The rows of this table
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correspond to each incoming transaction. */
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SQLEXEC("CREATE TABLE IF NOT EXISTS reserves_in"
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"("
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" reserve_pub BYTEA REFERENCES reserves (reserve_pub) ON DELETE CASCADE"
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",balance_value INT4 NOT NULL"
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",balance_fraction INT4 NOT NULL"
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",expiration_date INT8 NOT NULL"
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");");
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result = PQexec (conn,
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"CREATE INDEX reserves_in_index ON reserves_in (reserve_pub);");
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if (PGRES_COMMAND_OK != PQresultStatus (result))
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{
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ExecStatusType status = PQresultStatus (result);
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PQclear (result);
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result = NULL;
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goto SQLEXEC_fail;
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}
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PQclear (result);
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SQLEXEC ("CREATE TABLE IF NOT EXISTS collectable_blindcoins"
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"("
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"blind_ev BYTEA PRIMARY KEY"
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",blind_ev_sig BYTEA NOT NULL"
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",denom_pub BYTEA NOT NULL"
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",reserve_sig BYTEA NOT NULL"
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",reserve_pub BYTEA REFERENCES reserves (reserve_pub) ON DELETE CASCADE"
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");"
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"CREATE INDEX collectable_blindcoins_index ON"
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" collectable_blindcoins(reserve_pub)");
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SQLEXEC("CREATE TABLE IF NOT EXISTS known_coins "
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"("
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" coin_pub BYTEA NOT NULL PRIMARY KEY"
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",denom_pub BYTEA NOT NULL"
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",denom_sig BYTEA NOT NULL"
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",expended_value INT4 NOT NULL"
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",expended_fraction INT4 NOT NULL"
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",expended_currency VARCHAR(4) NOT NULL"
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",refresh_session_pub BYTEA"
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")");
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SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_sessions "
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"("
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" session_pub BYTEA PRIMARY KEY CHECK (length(session_pub) = 32)"
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",session_melt_sig BYTEA"
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",session_commit_sig BYTEA"
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",noreveal_index INT2 NOT NULL"
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// non-zero if all reveals were ok
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// and the new coin signatures are ready
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",reveal_ok BOOLEAN NOT NULL DEFAULT false"
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") ");
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SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_order "
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"( "
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" session_pub BYTEA NOT NULL REFERENCES refresh_sessions (session_pub)"
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",newcoin_index INT2 NOT NULL "
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",denom_pub BYTEA NOT NULL "
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",PRIMARY KEY (session_pub, newcoin_index)"
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") ");
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SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_commit_link"
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"("
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" session_pub BYTEA NOT NULL REFERENCES refresh_sessions (session_pub)"
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",transfer_pub BYTEA NOT NULL"
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",link_secret_enc BYTEA NOT NULL"
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// index of the old coin in the customer's request
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",oldcoin_index INT2 NOT NULL"
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// index for cut and choose,
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// ranges from 0 to kappa-1
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",cnc_index INT2 NOT NULL"
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")");
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SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_commit_coin"
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"("
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" session_pub BYTEA NOT NULL REFERENCES refresh_sessions (session_pub) "
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",link_vector_enc BYTEA NOT NULL"
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// index of the new coin in the customer's request
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",newcoin_index INT2 NOT NULL"
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// index for cut and choose,
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",cnc_index INT2 NOT NULL"
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",coin_ev BYTEA NOT NULL"
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")");
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SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_melt"
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"("
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" session_pub BYTEA NOT NULL REFERENCES refresh_sessions (session_pub) "
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",coin_pub BYTEA NOT NULL REFERENCES known_coins (coin_pub) "
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",denom_pub BYTEA NOT NULL "
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",oldcoin_index INT2 NOT NULL"
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")");
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SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_collectable"
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"("
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" session_pub BYTEA NOT NULL REFERENCES refresh_sessions (session_pub) "
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",ev_sig BYTEA NOT NULL"
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",newcoin_index INT2 NOT NULL"
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")");
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SQLEXEC("CREATE TABLE IF NOT EXISTS deposits "
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"( "
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" coin_pub BYTEA NOT NULL PRIMARY KEY CHECK (length(coin_pub)=32)"
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",denom_pub BYTEA NOT NULL CHECK (length(denom_pub)=32)"
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",transaction_id INT8 NOT NULL"
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",amount_currency VARCHAR(4) NOT NULL"
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",amount_value INT4 NOT NULL"
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",amount_fraction INT4 NOT NULL"
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",merchant_pub BYTEA NOT NULL"
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",h_contract BYTEA NOT NULL CHECK (length(h_contract)=64)"
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",h_wire BYTEA NOT NULL CHECK (length(h_wire)=64)"
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",coin_sig BYTEA NOT NULL CHECK (length(coin_sig)=64)"
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",wire TEXT NOT NULL"
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")");
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#undef SQLEXEC
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PQfinish (conn);
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return GNUNET_OK;
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SQLEXEC_fail:
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PQfinish (conn);
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return GNUNET_SYSERR;
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}
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/**
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* Setup prepared statements.
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*
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@ -27,6 +27,7 @@
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#include <gnunet/gnunet_util_lib.h>
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#include "taler_util.h"
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#define TALER_TEMP_SCHEMA_NAME "taler_temporary"
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/**
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* Initialize database subsystem.
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@ -42,12 +43,32 @@ TALER_MINT_DB_init (const char *connection_cfg);
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* Get the thread-local database-handle.
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* Connect to the db if the connection does not exist yet.
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*
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* @param temporary #GNUNET_YES to use a temporary schema; #GNUNET_NO to use the
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* database default one
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* @param the database connection, or NULL on error
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*/
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PGconn *
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TALER_MINT_DB_get_connection (void);
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TALER_MINT_DB_get_connection (int temporary);
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/**
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* Drop the temporary taler schema. This is only useful for testcases
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*
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* @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
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*/
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int
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TALER_MINT_DB_drop_temporary (PGconn *db);
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/**
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* Create the necessary tables if they are not present
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*
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* @param temporary should we use a temporary schema
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* @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
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*/
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int
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TALER_MINT_DB_create_tables (int temporary);
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/**
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* Setup prepared statements. FIXME: should this be part of the API,
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* or just internal to "TALER_MINT_DB_get_connection()"?
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@ -36,192 +36,7 @@ static PGconn *db_conn;
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static char *TALER_MINT_db_connection_cfg_str;
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static int
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TALER_MINT_init_withdraw_tables (PGconn *conn)
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{
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PGresult *result;
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result = PQexec (conn,
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"CREATE TABLE IF NOT EXISTS reserves"
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"("
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" reserve_pub BYTEA PRIMARY KEY"
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",balance_value INT4 NOT NULL"
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",balance_fraction INT4 NOT NULL"
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",balance_currency VARCHAR(4) NOT NULL"
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",status_sig BYTEA"
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",status_sign_pub BYTEA"
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",expiration_date INT8 NOT NULL"
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")");
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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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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQexec (conn,
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"CREATE TABLE IF NOT EXISTS collectable_blindcoins"
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"("
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"blind_ev BYTEA PRIMARY KEY"
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",blind_ev_sig BYTEA NOT NULL"
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",denom_pub BYTEA NOT NULL"
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",reserve_sig BYTEA NOT NULL"
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",reserve_pub BYTEA NOT NULL REFERENCES reserves (reserve_pub)"
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")");
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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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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQexec (conn,
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"CREATE TABLE IF NOT EXISTS known_coins "
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"("
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" coin_pub BYTEA NOT NULL PRIMARY KEY"
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",denom_pub BYTEA NOT NULL"
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",denom_sig BYTEA NOT NULL"
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",expended_value INT4 NOT NULL"
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",expended_fraction INT4 NOT NULL"
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",expended_currency VARCHAR(4) NOT NULL"
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",refresh_session_pub BYTEA"
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")");
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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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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQexec (conn,
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"CREATE TABLE IF NOT EXISTS refresh_sessions "
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"("
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" session_pub BYTEA PRIMARY KEY CHECK (length(session_pub) = 32)"
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",session_melt_sig BYTEA"
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",session_commit_sig BYTEA"
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",noreveal_index INT2 NOT NULL"
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// non-zero if all reveals were ok
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// and the new coin signatures are ready
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",reveal_ok BOOLEAN NOT NULL DEFAULT false"
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") ");
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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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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQexec (conn,
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"CREATE TABLE IF NOT EXISTS refresh_order "
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"( "
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" session_pub BYTEA NOT NULL REFERENCES refresh_sessions (session_pub)"
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",newcoin_index INT2 NOT NULL "
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",denom_pub BYTEA NOT NULL "
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",PRIMARY KEY (session_pub, newcoin_index)"
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") ");
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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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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQexec (conn,
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"CREATE TABLE IF NOT EXISTS refresh_commit_link"
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"("
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" session_pub BYTEA NOT NULL REFERENCES refresh_sessions (session_pub)"
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",transfer_pub BYTEA NOT NULL"
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",link_secret_enc BYTEA NOT NULL"
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// index of the old coin in the customer's request
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",oldcoin_index INT2 NOT NULL"
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// index for cut and choose,
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// ranges from 0 to kappa-1
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",cnc_index INT2 NOT NULL"
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")");
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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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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQexec (conn,
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"CREATE TABLE IF NOT EXISTS refresh_commit_coin"
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"("
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" session_pub BYTEA NOT NULL REFERENCES refresh_sessions (session_pub) "
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",link_vector_enc BYTEA NOT NULL"
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// index of the new coin in the customer's request
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",newcoin_index INT2 NOT NULL"
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// index for cut and choose,
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",cnc_index INT2 NOT NULL"
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",coin_ev BYTEA NOT NULL"
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")");
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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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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQexec (conn,
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"CREATE TABLE IF NOT EXISTS refresh_melt"
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"("
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" session_pub BYTEA NOT NULL REFERENCES refresh_sessions (session_pub) "
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",coin_pub BYTEA NOT NULL REFERENCES known_coins (coin_pub) "
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",denom_pub BYTEA NOT NULL "
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",oldcoin_index INT2 NOT NULL"
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")");
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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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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQexec (conn,
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"CREATE TABLE IF NOT EXISTS refresh_collectable"
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"("
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" session_pub BYTEA NOT NULL REFERENCES refresh_sessions (session_pub) "
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",ev_sig BYTEA NOT NULL"
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",newcoin_index INT2 NOT NULL"
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")");
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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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return GNUNET_SYSERR;
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}
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PQclear (result);
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result = PQexec (conn,
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"CREATE TABLE IF NOT EXISTS deposits "
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"( "
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" coin_pub BYTEA NOT NULL PRIMARY KEY CHECK (length(coin_pub)=32)"
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",denom_pub BYTEA NOT NULL CHECK (length(denom_pub)=32)"
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",transaction_id INT8 NOT NULL"
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",amount_currency VARCHAR(4) NOT NULL"
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",amount_value INT4 NOT NULL"
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",amount_fraction INT4 NOT NULL"
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",merchant_pub BYTEA NOT NULL"
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",h_contract BYTEA NOT NULL CHECK (length(h_contract)=64)"
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",h_wire BYTEA NOT NULL CHECK (length(h_wire)=64)"
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",coin_sig BYTEA NOT NULL CHECK (length(coin_sig)=64)"
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",wire TEXT NOT NULL"
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")");
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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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||||
return GNUNET_SYSERR;
|
||||
}
|
||||
PQclear (result);
|
||||
|
||||
return GNUNET_OK;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
@ -271,7 +86,7 @@ main (int argc, char *const *argv)
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (GNUNET_OK != TALER_MINT_init_withdraw_tables (db_conn))
|
||||
if (GNUNET_OK != TALER_MINT_DB_create_tables (db_conn))
|
||||
{
|
||||
fprintf (stderr, "Failed to initialize database.\n");
|
||||
return 1;
|
||||
|
||||
@ -85,7 +85,7 @@ TALER_MINT_db_execute_deposit (struct MHD_Connection *connection,
|
||||
struct TALER_MINT_DenomKeyIssuePriv *dki;
|
||||
int ret;
|
||||
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection ()))
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection (GNUNET_NO)))
|
||||
{
|
||||
GNUNET_break (0);
|
||||
return TALER_MINT_reply_internal_db_error (connection);
|
||||
@ -203,7 +203,7 @@ TALER_MINT_db_execute_withdraw_status (struct MHD_Connection *connection,
|
||||
struct ReserveHistory *rh;
|
||||
int res;
|
||||
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection ()))
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection (GNUNET_NO)))
|
||||
{
|
||||
GNUNET_break (0);
|
||||
return TALER_MINT_reply_internal_db_error (connection);
|
||||
@ -264,7 +264,7 @@ TALER_MINT_db_execute_withdraw_sign (struct MHD_Connection *connection,
|
||||
blinded_msg_len,
|
||||
&h_blind);
|
||||
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection ()))
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection (GNUNET_NO)))
|
||||
{
|
||||
GNUNET_break (0);
|
||||
return TALER_MINT_reply_internal_db_error (connection);
|
||||
@ -521,7 +521,7 @@ TALER_MINT_db_execute_refresh_melt (struct MHD_Connection *connection,
|
||||
int res;
|
||||
unsigned int i;
|
||||
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection ()))
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection (GNUNET_NO)))
|
||||
{
|
||||
GNUNET_break (0);
|
||||
return TALER_MINT_reply_internal_db_error (connection);
|
||||
@ -650,7 +650,7 @@ TALER_MINT_db_execute_refresh_commit (struct MHD_Connection *connection,
|
||||
unsigned int j;
|
||||
int res;
|
||||
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection ()))
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection (GNUNET_NO)))
|
||||
{
|
||||
GNUNET_break (0);
|
||||
return TALER_MINT_reply_internal_db_error (connection);
|
||||
@ -1034,7 +1034,7 @@ TALER_MINT_db_execute_refresh_reveal (struct MHD_Connection *connection,
|
||||
unsigned int j;
|
||||
unsigned int off;
|
||||
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection ()))
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection (GNUNET_NO)))
|
||||
{
|
||||
GNUNET_break (0);
|
||||
return TALER_MINT_reply_internal_db_error (connection);
|
||||
@ -1202,7 +1202,7 @@ TALER_MINT_db_execute_refresh_link (struct MHD_Connection *connection,
|
||||
struct TALER_EncryptedLinkSecret shared_secret_enc;
|
||||
struct LinkDataList *ldl;
|
||||
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection ()))
|
||||
if (NULL == (db_conn = TALER_MINT_DB_get_connection (GNUNET_NO)))
|
||||
{
|
||||
GNUNET_break (0);
|
||||
return TALER_MINT_reply_internal_db_error (connection);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user