4554 lines
151 KiB
C
4554 lines
151 KiB
C
/*
|
|
This file is part of TALER
|
|
Copyright (C) 2014, 2015, 2016 GNUnet e.V.
|
|
|
|
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 plugin_exchangedb_postgres.c
|
|
* @brief Low-level (statement-level) Postgres database access for the exchange
|
|
* @author Florian Dold
|
|
* @author Christian Grothoff
|
|
* @author Sree Harsha Totakura
|
|
*/
|
|
#include "platform.h"
|
|
#include "taler_pq_lib.h"
|
|
#include "taler_exchangedb_plugin.h"
|
|
#include <pthread.h>
|
|
#include <libpq-fe.h>
|
|
|
|
#include "plugin_exchangedb_common.c"
|
|
|
|
/**
|
|
* Log a query error.
|
|
*
|
|
* @param result PQ result object of the query that failed
|
|
*/
|
|
#define QUERY_ERR(result) \
|
|
GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Query failed at %s:%u: %s\n", __FILE__, __LINE__, PQresultErrorMessage (result))
|
|
|
|
|
|
/**
|
|
* Log a really unexpected PQ error.
|
|
*
|
|
* @param result PQ result object of the PQ operation that failed
|
|
*/
|
|
#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. Logs the current line number
|
|
* and jumps to the "EXITIF_exit" label.
|
|
*
|
|
* @param cond condition that must be TRUE to exit with an error
|
|
*/
|
|
#define EXITIF(cond) \
|
|
do { \
|
|
if (cond) { GNUNET_break (0); goto EXITIF_exit; } \
|
|
} while (0)
|
|
|
|
|
|
/**
|
|
* Execute an SQL statement and log errors on failure. Must be
|
|
* run in a function that has an "SQLEXEC_fail" label to jump
|
|
* to in case the SQL statement failed.
|
|
*
|
|
* @param conn database connection
|
|
* @param sql SQL statement to run
|
|
*/
|
|
#define SQLEXEC_(conn, sql) \
|
|
do { \
|
|
PGresult *result = PQexec (conn, sql); \
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result)) \
|
|
{ \
|
|
BREAK_DB_ERR (result); \
|
|
PQclear (result); \
|
|
goto SQLEXEC_fail; \
|
|
} \
|
|
PQclear (result); \
|
|
} while (0)
|
|
|
|
|
|
/**
|
|
* Run an SQL statement, ignoring errors and clearing the result.
|
|
*
|
|
* @param conn database connection
|
|
* @param sql SQL statement to run
|
|
*/
|
|
#define SQLEXEC_IGNORE_ERROR_(conn, sql) \
|
|
do { \
|
|
PGresult *result = PQexec (conn, sql); \
|
|
PQclear (result); \
|
|
} while (0)
|
|
|
|
|
|
/**
|
|
* Handle for a database session (per-thread, for transactions).
|
|
*/
|
|
struct TALER_EXCHANGEDB_Session
|
|
{
|
|
/**
|
|
* Postgres connection handle.
|
|
*/
|
|
PGconn *conn;
|
|
};
|
|
|
|
|
|
/**
|
|
* Type of the "cls" argument given to each of the functions in
|
|
* our API.
|
|
*/
|
|
struct PostgresClosure
|
|
{
|
|
|
|
/**
|
|
* Thread-local database connection.
|
|
* Contains a pointer to `PGconn` or NULL.
|
|
*/
|
|
pthread_key_t db_conn_threadlocal;
|
|
|
|
/**
|
|
* Database connection string, as read from
|
|
* the configuration.
|
|
*/
|
|
char *connection_cfg_str;
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Drop all Taler tables. This should only be used by testcases.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database session to use
|
|
* @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
|
|
*/
|
|
static int
|
|
postgres_drop_tables (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session)
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
|
|
"Dropping ALL tables\n");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS prewire;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS aggregation_tracking;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS deposits;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS refresh_out;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS refresh_commit_coin;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS refresh_commit_link;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS refunds;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS refresh_order;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS refresh_melts;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS refresh_sessions;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS known_coins;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS reserves_out;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS reserves_in;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS reserves;");
|
|
SQLEXEC_ (session->conn,
|
|
"DROP TABLE IF EXISTS denominations;");
|
|
return GNUNET_OK;
|
|
SQLEXEC_fail:
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
|
|
/**
|
|
* Function called by libpq whenever it wants to log something.
|
|
* We already log whenever we care, so this function does nothing
|
|
* and merely exists to silence the libpq logging.
|
|
*
|
|
* @param arg NULL
|
|
* @param res information about some libpq event
|
|
*/
|
|
static void
|
|
pq_notice_receiver_cb (void *arg,
|
|
const PGresult *res)
|
|
{
|
|
/* do nothing, intentionally */
|
|
}
|
|
|
|
|
|
/**
|
|
* Function called by libpq whenever it wants to log something.
|
|
* We log those using the Taler logger.
|
|
*
|
|
* @param arg NULL
|
|
* @param message information about some libpq event
|
|
*/
|
|
static void
|
|
pq_notice_processor_cb (void *arg,
|
|
const char *message)
|
|
{
|
|
GNUNET_log_from (GNUNET_ERROR_TYPE_INFO,
|
|
"pq",
|
|
"%s",
|
|
message);
|
|
}
|
|
|
|
|
|
/**
|
|
* Create the necessary tables if they are not present
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
|
|
*/
|
|
static int
|
|
postgres_create_tables (void *cls)
|
|
{
|
|
struct PostgresClosure *pc = cls;
|
|
PGconn *conn;
|
|
|
|
conn = PQconnectdb (pc->connection_cfg_str);
|
|
if (CONNECTION_OK != PQstatus (conn))
|
|
{
|
|
TALER_LOG_ERROR ("Database connection failed: %s\n",
|
|
PQerrorMessage (conn));
|
|
PQfinish (conn);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQsetNoticeReceiver (conn,
|
|
&pq_notice_receiver_cb,
|
|
NULL);
|
|
PQsetNoticeProcessor (conn,
|
|
&pq_notice_processor_cb,
|
|
NULL);
|
|
#define SQLEXEC(sql) SQLEXEC_(conn, sql);
|
|
#define SQLEXEC_INDEX(sql) SQLEXEC_IGNORE_ERROR_(conn, sql);
|
|
/* Denomination table for holding the publicly available information of
|
|
denominations keys. The denominations are to be referred to by using
|
|
foreign keys. The denominations are deleted by a housekeeping tool;
|
|
hence, do not use `ON DELETE CASCADE' on these rows in the tables
|
|
referencing these rows */
|
|
SQLEXEC ("CREATE TABLE IF NOT EXISTS denominations"
|
|
"(pub BYTEA PRIMARY KEY"
|
|
",master_pub BYTEA NOT NULL CHECK (LENGTH(master_pub)=32)"
|
|
",master_sig BYTEA NOT NULL CHECK (LENGTH(master_sig)=64)"
|
|
",valid_from INT8 NOT NULL"
|
|
",expire_withdraw INT8 NOT NULL"
|
|
",expire_deposit INT8 NOT NULL"
|
|
",expire_legal INT8 NOT NULL"
|
|
",coin_val INT8 NOT NULL" /* value of this denom */
|
|
",coin_frac INT4 NOT NULL" /* fractional value of this denom */
|
|
",coin_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL" /* assuming same currency for fees */
|
|
",fee_withdraw_val INT8 NOT NULL"
|
|
",fee_withdraw_frac INT4 NOT NULL"
|
|
",fee_withdraw_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
",fee_deposit_val INT8 NOT NULL"
|
|
",fee_deposit_frac INT4 NOT NULL"
|
|
",fee_deposit_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
",fee_refresh_val INT8 NOT NULL"
|
|
",fee_refresh_frac INT4 NOT NULL"
|
|
",fee_refresh_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
",fee_refund_val INT8 NOT NULL"
|
|
",fee_refund_frac INT4 NOT NULL"
|
|
",fee_refund_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
")");
|
|
/* reserves table is for summarization of a reserve. It is updated when new
|
|
funds are added and existing funds are withdrawn. The 'expiration_date'
|
|
can be used to eventually get rid of reserves that have not been used
|
|
for a very long time (either by refunding the owner or by greedily
|
|
grabbing the money, depending on the Exchange's terms of service) */
|
|
SQLEXEC ("CREATE TABLE IF NOT EXISTS reserves"
|
|
"(reserve_pub BYTEA PRIMARY KEY"
|
|
",current_balance_val INT8 NOT NULL"
|
|
",current_balance_frac INT4 NOT NULL"
|
|
",current_balance_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
",expiration_date INT8 NOT NULL"
|
|
")");
|
|
/* index on reserves table */
|
|
SQLEXEC_INDEX ("CREATE INDEX reserves_reserve_pub_index ON "
|
|
"reserves (reserve_pub)");
|
|
/* reserves_in table collects the transactions which transfer funds
|
|
into the reserve. The rows of this table correspond to each
|
|
incoming transaction. */
|
|
SQLEXEC("CREATE TABLE IF NOT EXISTS reserves_in"
|
|
"(reserve_pub BYTEA REFERENCES reserves (reserve_pub) ON DELETE CASCADE"
|
|
",balance_val INT8 NOT NULL"
|
|
",balance_frac INT4 NOT NULL"
|
|
",balance_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
",details TEXT NOT NULL "
|
|
",execution_date INT8 NOT NULL"
|
|
",PRIMARY KEY (reserve_pub,details)"
|
|
");");
|
|
/* Create indices on reserves_in */
|
|
SQLEXEC_INDEX ("CREATE INDEX reserves_in_reserve_pub_index"
|
|
" ON reserves_in (reserve_pub);");
|
|
SQLEXEC_INDEX ("CREATE INDEX reserves_in_reserve_pub_details_index"
|
|
" ON reserves_in (reserve_pub,details);");
|
|
SQLEXEC_INDEX ("CREATE INDEX execution_index"
|
|
" ON reserves_in (execution_date);");
|
|
/* Table with the withdraw operations that have been performed on a reserve.
|
|
The 'h_blind_ev' is the hash of the blinded coin. It serves as a primary
|
|
key, as (broken) clients that use a non-random coin and blinding factor
|
|
should fail to even withdraw, as otherwise the coins will fail to deposit
|
|
(as they really must be unique). */
|
|
SQLEXEC ("CREATE TABLE IF NOT EXISTS reserves_out"
|
|
"(h_blind_ev BYTEA PRIMARY KEY"
|
|
",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
|
|
",denom_sig BYTEA NOT NULL"
|
|
",reserve_pub BYTEA NOT NULL CHECK (LENGTH(reserve_pub)=32) REFERENCES reserves (reserve_pub) ON DELETE CASCADE"
|
|
",reserve_sig BYTEA NOT NULL CHECK (LENGTH(reserve_sig)=64)"
|
|
",execution_date INT8 NOT NULL"
|
|
",amount_with_fee_val INT8 NOT NULL"
|
|
",amount_with_fee_frac INT4 NOT NULL"
|
|
",amount_with_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
",withdraw_fee_val INT8 NOT NULL"
|
|
",withdraw_fee_frac INT4 NOT NULL"
|
|
",withdraw_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
");");
|
|
/* Index blindcoins(reserve_pub) for get_reserves_out statement */
|
|
SQLEXEC_INDEX ("CREATE INDEX reserves_out_reserve_pub_index ON"
|
|
" reserves_out (reserve_pub)");
|
|
SQLEXEC_INDEX ("CREATE INDEX reserves_out_h_blind_ev_index ON "
|
|
"reserves_out (h_blind_ev)");
|
|
/* Table with coins that have been (partially) spent, used to track
|
|
coin information only once. */
|
|
SQLEXEC("CREATE TABLE IF NOT EXISTS known_coins "
|
|
"(coin_pub BYTEA NOT NULL PRIMARY KEY"
|
|
",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
|
|
",denom_sig BYTEA NOT NULL"
|
|
")");
|
|
/**
|
|
* The DB will show negative values for some values of the following fields as
|
|
* we use them as 16 bit unsigned integers
|
|
* @a num_oldcoins
|
|
* @a num_newcoins
|
|
* Do not do arithmetic in SQL on these fields.
|
|
* NOTE: maybe we should instead forbid values >= 2^15 categorically?
|
|
*/
|
|
SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_sessions "
|
|
"(session_hash BYTEA PRIMARY KEY CHECK (LENGTH(session_hash)=64)"
|
|
",num_oldcoins INT2 NOT NULL"
|
|
",num_newcoins INT2 NOT NULL"
|
|
",noreveal_index INT2 NOT NULL"
|
|
")");
|
|
/* Table with coins that have been melted. Gives the coin's public
|
|
key (coin_pub), the melting session, the index of this coin in that
|
|
session, the signature affirming the melting and the amount that
|
|
this coin contributed to the melting session.
|
|
*/
|
|
SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_melts "
|
|
"(coin_pub BYTEA NOT NULL REFERENCES known_coins (coin_pub)"
|
|
",session_hash BYTEA NOT NULL REFERENCES refresh_sessions (session_hash)"
|
|
",oldcoin_index INT2 NOT NULL"
|
|
",coin_sig BYTEA NOT NULL CHECK(LENGTH(coin_sig)=64)"
|
|
",amount_with_fee_val INT8 NOT NULL"
|
|
",amount_with_fee_frac INT4 NOT NULL"
|
|
",amount_with_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
",melt_fee_val INT8 NOT NULL"
|
|
",melt_fee_frac INT4 NOT NULL"
|
|
",melt_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
",PRIMARY KEY (session_hash, oldcoin_index)" /* a coin can be used only
|
|
once in a refresh session */
|
|
") ");
|
|
/* Table with information about coins that have been refunded. (Technically
|
|
one of the deposit operations that a coin was involved with is refunded.)*/
|
|
SQLEXEC("CREATE TABLE IF NOT EXISTS refunds "
|
|
"(coin_pub BYTEA NOT NULL REFERENCES known_coins (coin_pub)"
|
|
",merchant_pub BYTEA NOT NULL CHECK(LENGTH(merchant_pub)=32)"
|
|
",merchant_sig BYTEA NOT NULL CHECK(LENGTH(merchant_sig)=64)"
|
|
",h_contract BYTEA NOT NULL CHECK(LENGTH(h_contract)=64)"
|
|
",transaction_id INT8 NOT NULL"
|
|
",rtransaction_id INT8 NOT NULL"
|
|
",amount_with_fee_val INT8 NOT NULL"
|
|
",amount_with_fee_frac INT4 NOT NULL"
|
|
",amount_with_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
",refund_fee_val INT8 NOT NULL"
|
|
",refund_fee_frac INT4 NOT NULL"
|
|
",refund_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
",PRIMARY KEY (coin_pub, merchant_pub, transaction_id, rtransaction_id)" /* this combo must be unique, and we usually select by coin_pub */
|
|
") ");
|
|
|
|
|
|
/* Table with information about the desired denominations to be created
|
|
during a refresh operation; contains the denomination key for each
|
|
of the coins (for a given refresh session) */
|
|
SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_order "
|
|
"(session_hash BYTEA NOT NULL CHECK (LENGTH(session_hash)=64) REFERENCES refresh_sessions (session_hash)"
|
|
",newcoin_index INT2 NOT NULL "
|
|
",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
|
|
",PRIMARY KEY (session_hash, newcoin_index)"
|
|
")");
|
|
|
|
/* Table with the commitments for a refresh operation; includes
|
|
the session_hash for which this is the link information, the
|
|
oldcoin index and the cut-and-choose index (from 0 to #TALER_CNC_KAPPA-1),
|
|
as well as the actual link data (the transfer public key and the encrypted
|
|
link secret).
|
|
NOTE: We might want to simplify this and not have the oldcoin_index
|
|
and instead store all link secrets, one after the other, in one big BYTEA.
|
|
(#3814) */
|
|
SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_commit_link "
|
|
"(session_hash BYTEA NOT NULL REFERENCES refresh_sessions (session_hash)"
|
|
",transfer_pub BYTEA NOT NULL CHECK(LENGTH(transfer_pub)=32)"
|
|
",link_secret_enc BYTEA NOT NULL"
|
|
",oldcoin_index INT2 NOT NULL"
|
|
",cnc_index INT2 NOT NULL"
|
|
")");
|
|
/* Table with the commitments for the new coins that are to be created
|
|
during a melting session. Includes the session, the cut-and-choose
|
|
index and the index of the new coin, and the envelope of the new
|
|
coin to be signed, as well as the encrypted information about the
|
|
private key and the blinding factor for the coin (for verification
|
|
in case this cnc_index is chosen to be revealed)
|
|
|
|
NOTE: We might want to simplify this and not have the
|
|
newcoin_index and instead store all coin_evs and
|
|
link_vector_encs, one after the other, in two big BYTEAs.
|
|
(#3815) */
|
|
SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_commit_coin "
|
|
"(session_hash BYTEA NOT NULL REFERENCES refresh_sessions (session_hash) "
|
|
",cnc_index INT2 NOT NULL"
|
|
",newcoin_index INT2 NOT NULL"
|
|
",link_vector_enc BYTEA NOT NULL"
|
|
",coin_ev BYTEA NOT NULL"
|
|
")");
|
|
/* Table with the signatures over coins generated during a refresh
|
|
operation. Needed to answer /refresh/link queries later. Stores
|
|
the coin signatures under the respective session hash and index. */
|
|
SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_out "
|
|
"(session_hash BYTEA NOT NULL CHECK(LENGTH(session_hash)=64) REFERENCES refresh_sessions (session_hash) "
|
|
",newcoin_index INT2 NOT NULL"
|
|
",ev_sig BYTEA NOT NULL"
|
|
")");
|
|
/* This table contains the wire transfers the exchange is supposed to
|
|
execute to transmit funds to the merchants (and manage refunds). */
|
|
SQLEXEC("CREATE TABLE IF NOT EXISTS deposits "
|
|
"(serial_id BIGSERIAL PRIMARY KEY"
|
|
",coin_pub BYTEA NOT NULL REFERENCES known_coins (coin_pub)"
|
|
",transaction_id INT8 NOT NULL"
|
|
",amount_with_fee_val INT8 NOT NULL"
|
|
",amount_with_fee_frac INT4 NOT NULL"
|
|
",amount_with_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
",deposit_fee_val INT8 NOT NULL"
|
|
",deposit_fee_frac INT4 NOT NULL"
|
|
",deposit_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
",timestamp INT8 NOT NULL"
|
|
",refund_deadline INT8 NOT NULL"
|
|
",wire_deadline INT8 NOT NULL"
|
|
",merchant_pub BYTEA NOT NULL CHECK (LENGTH(merchant_pub)=32)"
|
|
",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"
|
|
",tiny BOOLEAN NOT NULL DEFAULT false"
|
|
",done BOOLEAN NOT NULL DEFAULT false"
|
|
")");
|
|
/* Index for get_deposit statement on coin_pub, transaction_id and merchant_pub */
|
|
SQLEXEC_INDEX("CREATE INDEX deposits_coin_pub_index "
|
|
"ON deposits(coin_pub, transaction_id, merchant_pub)");
|
|
/* Table for the tracking API, mapping from wire transfer identifiers
|
|
to transactions and back */
|
|
SQLEXEC("CREATE TABLE IF NOT EXISTS aggregation_tracking "
|
|
"(h_contract BYTEA CHECK (LENGTH(h_contract)=64)"
|
|
",h_wire BYTEA CHECK (LENGTH(h_wire)=64)"
|
|
",coin_pub BYTEA NOT NULL CHECK (LENGTH(coin_pub)=32)"
|
|
",merchant_pub BYTEA NOT NULL CHECK (LENGTH(merchant_pub)=32)"
|
|
",transaction_id INT8 NOT NULL"
|
|
",wtid_raw BYTEA NOT NULL CHECK (LENGTH(merchant_pub)=" TALER_WIRE_TRANSFER_IDENTIFIER_LEN_STR ")"
|
|
",execution_time INT8 NOT NULL"
|
|
",coin_amount_val INT8 NOT NULL"
|
|
",coin_amount_frac INT4 NOT NULL"
|
|
",coin_amount_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
",coin_fee_val INT8 NOT NULL"
|
|
",coin_fee_frac INT4 NOT NULL"
|
|
",coin_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
|
|
")");
|
|
/* Index for lookup_transactions statement on wtid */
|
|
SQLEXEC_INDEX("CREATE INDEX aggregation_tracking_wtid_index "
|
|
"ON aggregation_tracking(wtid_raw)");
|
|
/* Index for lookup_deposit_wtid statement */
|
|
SQLEXEC_INDEX("CREATE INDEX aggregation_tracking_deposit_index "
|
|
"ON aggregation_tracking(coin_pub,h_contract,h_wire,transaction_id,merchant_pub)");
|
|
|
|
/* This table contains the pre-commit data for
|
|
wire transfers the exchange is about to execute. */
|
|
SQLEXEC("CREATE TABLE IF NOT EXISTS prewire "
|
|
"(serial_id BIGSERIAL PRIMARY KEY"
|
|
",type TEXT NOT NULL"
|
|
",finished BOOLEAN NOT NULL DEFAULT false"
|
|
",buf BYTEA NOT NULL"
|
|
")");
|
|
/* Index for prepare_data_iterate statement */
|
|
SQLEXEC_INDEX("CREATE INDEX prepare_iteration_index "
|
|
"ON prewire(type,finished)");
|
|
|
|
|
|
#undef SQLEXEC
|
|
#undef SQLEXEC_INDEX
|
|
|
|
PQfinish (conn);
|
|
return GNUNET_OK;
|
|
|
|
SQLEXEC_fail:
|
|
PQfinish (conn);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
|
|
/**
|
|
* Setup prepared statements.
|
|
*
|
|
* @param db_conn connection handle to initialize
|
|
* @return #GNUNET_OK on success, #GNUNET_SYSERR on failure
|
|
*/
|
|
static int
|
|
postgres_prepare (PGconn *db_conn)
|
|
{
|
|
PGresult *result;
|
|
|
|
#define PREPARE(name, sql, ...) \
|
|
do { \
|
|
result = PQprepare (db_conn, name, sql, __VA_ARGS__); \
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result)) \
|
|
{ \
|
|
BREAK_DB_ERR (result); \
|
|
PQclear (result); result = NULL; \
|
|
return GNUNET_SYSERR; \
|
|
} \
|
|
PQclear (result); result = NULL; \
|
|
} while (0);
|
|
|
|
/* Used in #postgres_insert_denomination_info() */
|
|
PREPARE ("denomination_insert",
|
|
"INSERT INTO denominations "
|
|
"(pub"
|
|
",master_pub"
|
|
",master_sig"
|
|
",valid_from"
|
|
",expire_withdraw"
|
|
",expire_deposit"
|
|
",expire_legal"
|
|
",coin_val" /* value of this denom */
|
|
",coin_frac" /* fractional value of this denom */
|
|
",coin_curr" /* assuming same currency for fees */
|
|
",fee_withdraw_val"
|
|
",fee_withdraw_frac"
|
|
",fee_withdraw_curr" /* must match coin_curr */
|
|
",fee_deposit_val"
|
|
",fee_deposit_frac"
|
|
",fee_deposit_curr" /* must match coin_curr */
|
|
",fee_refresh_val"
|
|
",fee_refresh_frac"
|
|
",fee_refresh_curr" /* must match coin_curr */
|
|
",fee_refund_val"
|
|
",fee_refund_frac"
|
|
",fee_refund_curr" /* must match coin_curr */
|
|
") VALUES "
|
|
"($1, $2, $3, $4, $5, $6, $7, $8, $9, $10,"
|
|
" $11, $12, $13, $14, $15, $16, $17, $18,"
|
|
" $19, $20, $21, $22);",
|
|
22, NULL);
|
|
|
|
/* Used in #postgres_get_denomination_info() */
|
|
PREPARE ("denomination_get",
|
|
"SELECT"
|
|
" master_pub"
|
|
",master_sig"
|
|
",valid_from"
|
|
",expire_withdraw"
|
|
",expire_deposit"
|
|
",expire_legal"
|
|
",coin_val" /* value of this denom */
|
|
",coin_frac" /* fractional value of this denom */
|
|
",coin_curr" /* assuming same currency for fees */
|
|
",fee_withdraw_val"
|
|
",fee_withdraw_frac"
|
|
",fee_withdraw_curr" /* must match coin_curr */
|
|
",fee_deposit_val"
|
|
",fee_deposit_frac"
|
|
",fee_deposit_curr" /* must match coin_curr */
|
|
",fee_refresh_val"
|
|
",fee_refresh_frac"
|
|
",fee_refresh_curr" /* must match coin_curr */
|
|
",fee_refund_val"
|
|
",fee_refund_frac"
|
|
",fee_refund_curr" /* must match coin_curr */
|
|
" FROM denominations"
|
|
" WHERE pub=$1;",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_reserve_get() */
|
|
PREPARE ("reserve_get",
|
|
"SELECT"
|
|
" current_balance_val"
|
|
",current_balance_frac"
|
|
",current_balance_curr"
|
|
",expiration_date"
|
|
" FROM reserves"
|
|
" WHERE reserve_pub=$1"
|
|
" LIMIT 1;",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_reserves_in_insert() when the reserve is new */
|
|
PREPARE ("reserve_create",
|
|
"INSERT INTO reserves "
|
|
"(reserve_pub"
|
|
",current_balance_val"
|
|
",current_balance_frac"
|
|
",current_balance_curr"
|
|
",expiration_date"
|
|
") VALUES "
|
|
"($1, $2, $3, $4, $5);",
|
|
5, NULL);
|
|
|
|
/* Used in #postgres_reserves_update() when the reserve is updated */
|
|
PREPARE ("reserve_update",
|
|
"UPDATE reserves"
|
|
" SET"
|
|
" expiration_date=$1 "
|
|
",current_balance_val=$2 "
|
|
",current_balance_frac=$3 "
|
|
"WHERE current_balance_curr=$4 AND reserve_pub=$5",
|
|
5, NULL);
|
|
|
|
/* Used in #postgres_reserves_in_insert() to store transaction details */
|
|
PREPARE ("reserves_in_add_transaction",
|
|
"INSERT INTO reserves_in "
|
|
"(reserve_pub"
|
|
",balance_val"
|
|
",balance_frac"
|
|
",balance_curr"
|
|
",details"
|
|
",execution_date"
|
|
") VALUES "
|
|
"($1, $2, $3, $4, $5, $6);",
|
|
6, NULL);
|
|
|
|
/* Used in #postgres_get_reserve_history() to obtain inbound transactions
|
|
for a reserve */
|
|
PREPARE ("reserves_in_get_transactions",
|
|
"SELECT"
|
|
" balance_val"
|
|
",balance_frac"
|
|
",balance_curr"
|
|
",execution_date"
|
|
",details"
|
|
" FROM reserves_in"
|
|
" WHERE reserve_pub=$1",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_insert_withdraw_info() to store
|
|
the signature of a blinded coin with the blinded coin's
|
|
details before returning it during /reserve/withdraw. We store
|
|
the coin's denomination information (public key, signature)
|
|
and the blinded message as well as the reserve that the coin
|
|
is being withdrawn from and the signature of the message
|
|
authorizing the withdrawal. */
|
|
PREPARE ("insert_withdraw_info",
|
|
"INSERT INTO reserves_out "
|
|
"(h_blind_ev"
|
|
",denom_pub"
|
|
",denom_sig"
|
|
",reserve_pub"
|
|
",reserve_sig"
|
|
",execution_date"
|
|
",amount_with_fee_val"
|
|
",amount_with_fee_frac"
|
|
",amount_with_fee_curr"
|
|
",withdraw_fee_val"
|
|
",withdraw_fee_frac"
|
|
",withdraw_fee_curr"
|
|
") VALUES "
|
|
"($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12);",
|
|
12, NULL);
|
|
|
|
/* Used in #postgres_get_withdraw_info() to
|
|
locate the response for a /reserve/withdraw request
|
|
using the hash of the blinded message. Used to
|
|
make sure /reserve/withdraw requests are idempotent. */
|
|
PREPARE ("get_withdraw_info",
|
|
"SELECT"
|
|
" denom_pub"
|
|
",denom_sig"
|
|
",reserve_sig"
|
|
",reserve_pub"
|
|
",execution_date"
|
|
",amount_with_fee_val"
|
|
",amount_with_fee_frac"
|
|
",amount_with_fee_curr"
|
|
",withdraw_fee_val"
|
|
",withdraw_fee_frac"
|
|
",withdraw_fee_curr"
|
|
" FROM reserves_out"
|
|
" WHERE h_blind_ev=$1",
|
|
1, NULL);
|
|
|
|
/* Used during #postgres_get_reserve_history() to
|
|
obtain all of the /reserve/withdraw operations that
|
|
have been performed on a given reserve. (i.e. to
|
|
demonstrate double-spending) */
|
|
PREPARE ("get_reserves_out",
|
|
"SELECT"
|
|
" h_blind_ev"
|
|
",denom_pub"
|
|
",denom_sig"
|
|
",reserve_sig"
|
|
",execution_date"
|
|
",amount_with_fee_val"
|
|
",amount_with_fee_frac"
|
|
",amount_with_fee_curr"
|
|
",withdraw_fee_val"
|
|
",withdraw_fee_frac"
|
|
",withdraw_fee_curr"
|
|
" FROM reserves_out"
|
|
" WHERE reserve_pub=$1;",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_get_refresh_session() to fetch
|
|
high-level information about a refresh session */
|
|
PREPARE ("get_refresh_session",
|
|
"SELECT"
|
|
" num_oldcoins"
|
|
",num_newcoins"
|
|
",noreveal_index"
|
|
" FROM refresh_sessions "
|
|
" WHERE session_hash=$1 ",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_create_refresh_session() to store
|
|
high-level information about a refresh session */
|
|
PREPARE ("insert_refresh_session",
|
|
"INSERT INTO refresh_sessions "
|
|
"(session_hash "
|
|
",num_oldcoins "
|
|
",num_newcoins "
|
|
",noreveal_index "
|
|
") VALUES "
|
|
"($1, $2, $3, $4);",
|
|
4, NULL);
|
|
|
|
/* Used in #postgres_get_known_coin() to fetch
|
|
the denomination public key and signature for
|
|
a coin known to the exchange. */
|
|
PREPARE ("get_known_coin",
|
|
"SELECT"
|
|
" denom_pub"
|
|
",denom_sig"
|
|
" FROM known_coins"
|
|
" WHERE coin_pub=$1",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_insert_known_coin() to store
|
|
the denomination public key and signature for
|
|
a coin known to the exchange. */
|
|
PREPARE ("insert_known_coin",
|
|
"INSERT INTO known_coins "
|
|
"(coin_pub"
|
|
",denom_pub"
|
|
",denom_sig"
|
|
") VALUES "
|
|
"($1,$2,$3);",
|
|
3, NULL);
|
|
|
|
/* Store information about the desired denominations for a
|
|
refresh operation, used in #postgres_insert_refresh_order() */
|
|
PREPARE ("insert_refresh_order",
|
|
"INSERT INTO refresh_order "
|
|
"(newcoin_index "
|
|
",session_hash "
|
|
",denom_pub "
|
|
") VALUES "
|
|
"($1, $2, $3);",
|
|
3, NULL);
|
|
|
|
/* Obtain information about the desired denominations for a
|
|
refresh operation, used in #postgres_get_refresh_order() */
|
|
PREPARE ("get_refresh_order",
|
|
"SELECT denom_pub"
|
|
" FROM refresh_order"
|
|
" WHERE session_hash=$1 AND newcoin_index=$2",
|
|
2, NULL);
|
|
|
|
/* Used in #postgres_insert_refresh_melt to store information
|
|
about melted coins */
|
|
PREPARE ("insert_refresh_melt",
|
|
"INSERT INTO refresh_melts "
|
|
"(coin_pub "
|
|
",session_hash"
|
|
",oldcoin_index "
|
|
",coin_sig "
|
|
",amount_with_fee_val "
|
|
",amount_with_fee_frac "
|
|
",amount_with_fee_curr "
|
|
",melt_fee_val "
|
|
",melt_fee_frac "
|
|
",melt_fee_curr "
|
|
") VALUES "
|
|
"($1, $2, $3, $4, $5, $6, $7, $8, $9, $10);",
|
|
10, NULL);
|
|
|
|
/* Used in #postgres_get_refresh_melt to obtain information
|
|
about melted coins */
|
|
PREPARE ("get_refresh_melt",
|
|
"SELECT"
|
|
" coin_pub"
|
|
",coin_sig"
|
|
",amount_with_fee_val"
|
|
",amount_with_fee_frac"
|
|
",amount_with_fee_curr"
|
|
",melt_fee_val "
|
|
",melt_fee_frac "
|
|
",melt_fee_curr "
|
|
" FROM refresh_melts"
|
|
" WHERE session_hash=$1 AND oldcoin_index=$2",
|
|
2, NULL);
|
|
|
|
/* Query the 'refresh_melts' by coin public key */
|
|
PREPARE ("get_refresh_melt_by_coin",
|
|
"SELECT"
|
|
" session_hash"
|
|
/* ",oldcoin_index" // not needed */
|
|
",coin_sig"
|
|
",amount_with_fee_val"
|
|
",amount_with_fee_frac"
|
|
",amount_with_fee_curr"
|
|
",melt_fee_val "
|
|
",melt_fee_frac "
|
|
",melt_fee_curr "
|
|
" FROM refresh_melts"
|
|
" WHERE coin_pub=$1",
|
|
1, NULL);
|
|
|
|
/* Query the 'refunds' by coin public key */
|
|
PREPARE ("get_refunds_by_coin",
|
|
"SELECT"
|
|
" merchant_pub"
|
|
",merchant_sig"
|
|
",h_contract"
|
|
",transaction_id"
|
|
",rtransaction_id"
|
|
",amount_with_fee_val"
|
|
",amount_with_fee_frac"
|
|
",amount_with_fee_curr"
|
|
",refund_fee_val "
|
|
",refund_fee_frac "
|
|
",refund_fee_curr "
|
|
" FROM refunds"
|
|
" WHERE coin_pub=$1",
|
|
1, NULL);
|
|
|
|
|
|
/* Used in #postgres_insert_refresh_commit_links() to
|
|
store commitments */
|
|
PREPARE ("insert_refresh_commit_link",
|
|
"INSERT INTO refresh_commit_link "
|
|
"(session_hash"
|
|
",transfer_pub"
|
|
",cnc_index"
|
|
",oldcoin_index"
|
|
",link_secret_enc"
|
|
") VALUES "
|
|
"($1, $2, $3, $4, $5);",
|
|
5, NULL);
|
|
|
|
/* Used in #postgres_get_refresh_commit_links() to
|
|
retrieve original commitments during /refresh/reveal */
|
|
PREPARE ("get_refresh_commit_link",
|
|
"SELECT"
|
|
" transfer_pub"
|
|
",link_secret_enc"
|
|
" FROM refresh_commit_link"
|
|
" WHERE session_hash=$1 AND cnc_index=$2 AND oldcoin_index=$3",
|
|
3, NULL);
|
|
|
|
/* Used in #postgres_insert_refresh_commit_coins() to
|
|
store coin commitments. */
|
|
PREPARE ("insert_refresh_commit_coin",
|
|
"INSERT INTO refresh_commit_coin "
|
|
"(session_hash"
|
|
",cnc_index"
|
|
",newcoin_index"
|
|
",link_vector_enc"
|
|
",coin_ev"
|
|
") VALUES "
|
|
"($1, $2, $3, $4, $5);",
|
|
5, NULL);
|
|
|
|
/* Used in #postgres_get_refresh_commit_coins() to
|
|
retrieve the original coin envelopes, to either be
|
|
verified or signed. */
|
|
PREPARE ("get_refresh_commit_coin",
|
|
"SELECT"
|
|
" link_vector_enc"
|
|
",coin_ev"
|
|
" FROM refresh_commit_coin"
|
|
" WHERE session_hash=$1 AND cnc_index=$2 AND newcoin_index=$3",
|
|
3, NULL);
|
|
|
|
/* Store information about a /deposit the exchange is to execute.
|
|
Used in #postgres_insert_deposit(). */
|
|
PREPARE ("insert_deposit",
|
|
"INSERT INTO deposits "
|
|
"(coin_pub"
|
|
",transaction_id"
|
|
",amount_with_fee_val"
|
|
",amount_with_fee_frac"
|
|
",amount_with_fee_curr"
|
|
",deposit_fee_val"
|
|
",deposit_fee_frac"
|
|
",deposit_fee_curr"
|
|
",timestamp"
|
|
",refund_deadline"
|
|
",wire_deadline"
|
|
",merchant_pub"
|
|
",h_contract"
|
|
",h_wire"
|
|
",coin_sig"
|
|
",wire"
|
|
") VALUES "
|
|
"($1, $2, $3, $4, $5, $6, $7, $8, $9, $10,"
|
|
" $11, $12, $13, $14, $15, $16);",
|
|
16, NULL);
|
|
|
|
/* Used in #postgres_insert_refund() to store refund information */
|
|
PREPARE ("insert_refund",
|
|
"INSERT INTO refunds "
|
|
"(coin_pub "
|
|
",merchant_pub "
|
|
",merchant_sig "
|
|
",h_contract "
|
|
",transaction_id "
|
|
",rtransaction_id "
|
|
",amount_with_fee_val "
|
|
",amount_with_fee_frac "
|
|
",amount_with_fee_curr "
|
|
",refund_fee_val "
|
|
",refund_fee_frac "
|
|
",refund_fee_curr "
|
|
") VALUES "
|
|
"($1, $2, $3, $4, $5, $6, $7, $8, $9, $10,"
|
|
" $11, $12);",
|
|
12, NULL);
|
|
|
|
/* Fetch an existing deposit request, used to ensure idempotency
|
|
during /deposit processing. Used in #postgres_have_deposit(). */
|
|
PREPARE ("get_deposit",
|
|
"SELECT"
|
|
" amount_with_fee_val"
|
|
",amount_with_fee_frac"
|
|
",amount_with_fee_curr"
|
|
",timestamp"
|
|
",refund_deadline"
|
|
",wire_deadline"
|
|
",h_contract"
|
|
",h_wire"
|
|
" FROM deposits"
|
|
" WHERE ("
|
|
" (coin_pub=$1) AND"
|
|
" (transaction_id=$2) AND"
|
|
" (merchant_pub=$3)"
|
|
" )",
|
|
3, NULL);
|
|
|
|
/* Fetch an existing deposit request.
|
|
Used in #postgres_wire_lookup_deposit_wtid(). */
|
|
PREPARE ("get_deposit_for_wtid",
|
|
"SELECT"
|
|
" amount_with_fee_val"
|
|
",amount_with_fee_frac"
|
|
",amount_with_fee_curr"
|
|
",deposit_fee_val"
|
|
",deposit_fee_frac"
|
|
",deposit_fee_curr"
|
|
",wire_deadline"
|
|
" FROM deposits"
|
|
" WHERE ("
|
|
" (coin_pub=$1) AND"
|
|
" (transaction_id=$2) AND"
|
|
" (merchant_pub=$3) AND"
|
|
" (h_contract=$4) AND"
|
|
" (h_wire=$5)"
|
|
" )",
|
|
5, NULL);
|
|
|
|
/* Used in #postgres_get_ready_deposit() */
|
|
PREPARE ("deposits_get_ready",
|
|
"SELECT"
|
|
" serial_id"
|
|
",amount_with_fee_val"
|
|
",amount_with_fee_frac"
|
|
",amount_with_fee_curr"
|
|
",deposit_fee_val"
|
|
",deposit_fee_frac"
|
|
",deposit_fee_curr"
|
|
",wire_deadline"
|
|
",transaction_id"
|
|
",h_contract"
|
|
",wire"
|
|
",merchant_pub"
|
|
",coin_pub"
|
|
" FROM deposits"
|
|
" WHERE"
|
|
" tiny=false AND"
|
|
" done=false AND"
|
|
" wire_deadline<$1"
|
|
" ORDER BY wire_deadline ASC"
|
|
" LIMIT 1",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_iterate_matching_deposits() */
|
|
PREPARE ("deposits_iterate_matching",
|
|
"SELECT"
|
|
" serial_id"
|
|
",amount_with_fee_val"
|
|
",amount_with_fee_frac"
|
|
",amount_with_fee_curr"
|
|
",deposit_fee_val"
|
|
",deposit_fee_frac"
|
|
",deposit_fee_curr"
|
|
",wire_deadline"
|
|
",transaction_id"
|
|
",h_contract"
|
|
",coin_pub"
|
|
" FROM deposits"
|
|
" WHERE"
|
|
" merchant_pub=$1 AND"
|
|
" h_wire=$2 AND"
|
|
" done=false"
|
|
" ORDER BY wire_deadline ASC"
|
|
" LIMIT " TALER_EXCHANGEDB_MATCHING_DEPOSITS_LIMIT_STR,
|
|
2, NULL);
|
|
|
|
/* Used in #postgres_mark_deposit_tiny() */
|
|
PREPARE ("mark_deposit_tiny",
|
|
"UPDATE deposits"
|
|
" SET tiny=true"
|
|
" WHERE serial_id=$1",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_mark_deposit_done() */
|
|
PREPARE ("mark_deposit_done",
|
|
"UPDATE deposits"
|
|
" SET done=true"
|
|
" WHERE serial_id=$1",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_test_deposit_done() */
|
|
PREPARE ("test_deposit_done",
|
|
"SELECT done"
|
|
" FROM deposits"
|
|
" WHERE coin_pub=$1"
|
|
" AND transaction_id=$2"
|
|
" AND merchant_pub=$3"
|
|
" AND h_contract=$4"
|
|
" AND h_wire=$5",
|
|
5, NULL);
|
|
|
|
/* Used in #postgres_get_coin_transactions() to obtain information
|
|
about how a coin has been spend with /deposit requests. */
|
|
PREPARE ("get_deposit_with_coin_pub",
|
|
"SELECT"
|
|
" transaction_id"
|
|
",amount_with_fee_val"
|
|
",amount_with_fee_frac"
|
|
",amount_with_fee_curr"
|
|
",deposit_fee_val"
|
|
",deposit_fee_frac"
|
|
",deposit_fee_curr"
|
|
",timestamp"
|
|
",refund_deadline"
|
|
",merchant_pub"
|
|
",h_contract"
|
|
",h_wire"
|
|
",wire"
|
|
",coin_sig"
|
|
" FROM deposits"
|
|
" WHERE coin_pub=$1",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_insert_refresh_out() to store the
|
|
generated signature(s) for future requests, i.e. /refresh/link */
|
|
PREPARE ("insert_refresh_out",
|
|
"INSERT INTO refresh_out "
|
|
"(session_hash"
|
|
",newcoin_index"
|
|
",ev_sig"
|
|
") VALUES "
|
|
"($1, $2, $3)",
|
|
3, NULL);
|
|
|
|
/* Used in #postgres_get_link_data_list(). We use the session_hash
|
|
to obtain the "noreveal_index" for that session, and then select
|
|
the encrypted link vectors (link_vector_enc) and the
|
|
corresponding signatures (ev_sig) and the denomination keys from
|
|
the respective tables (namely refresh_melts and refresh_order)
|
|
using the session_hash as the primary filter (on join) and the
|
|
'noreveal_index' to constrain the selection on the commitment.
|
|
We also want to get the triplet for each of the newcoins, so we
|
|
have another constraint to ensure we get each triplet with
|
|
matching "newcoin_index" values. NOTE: This may return many
|
|
results, both for different sessions and for the different coins
|
|
being exchangeed in the refresh ops. NOTE: There may be more
|
|
efficient ways to express the same query. */
|
|
PREPARE ("get_link",
|
|
"SELECT link_vector_enc,ev_sig,ro.denom_pub"
|
|
" FROM refresh_melts rm "
|
|
" JOIN refresh_order ro USING (session_hash)"
|
|
" JOIN refresh_commit_coin rcc USING (session_hash)"
|
|
" JOIN refresh_sessions rs USING (session_hash)"
|
|
" JOIN refresh_out rc USING (session_hash)"
|
|
" WHERE ro.session_hash=$1"
|
|
" AND ro.newcoin_index=rcc.newcoin_index"
|
|
" AND ro.newcoin_index=rc.newcoin_index"
|
|
" AND rcc.cnc_index=rs.noreveal_index",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_get_transfer(). Given the public key of a
|
|
melted coin, we obtain the corresponding encrypted link secret
|
|
and the transfer public key. This is done by first finding
|
|
the session_hash(es) of all sessions the coin was melted into,
|
|
and then constraining the result to the selected "noreveal_index"
|
|
and the transfer public key to the corresponding index of the
|
|
old coin.
|
|
NOTE: This may (in theory) return multiple results, one per session
|
|
that the old coin was melted into. */
|
|
PREPARE ("get_transfer",
|
|
"SELECT transfer_pub,link_secret_enc,session_hash"
|
|
" FROM refresh_melts rm"
|
|
" JOIN refresh_commit_link rcl USING (session_hash)"
|
|
" JOIN refresh_sessions rs USING (session_hash)"
|
|
" WHERE rm.coin_pub=$1"
|
|
" AND rm.oldcoin_index = rcl.oldcoin_index"
|
|
" AND rcl.cnc_index=rs.noreveal_index",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_lookup_wire_transfer */
|
|
PREPARE ("lookup_transactions",
|
|
"SELECT"
|
|
" h_contract"
|
|
",h_wire"
|
|
",coin_pub"
|
|
",merchant_pub"
|
|
",transaction_id"
|
|
",execution_time"
|
|
",coin_amount_val"
|
|
",coin_amount_frac"
|
|
",coin_amount_curr"
|
|
",coin_fee_val"
|
|
",coin_fee_frac"
|
|
",coin_fee_curr"
|
|
" FROM aggregation_tracking"
|
|
" WHERE wtid_raw=$1",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_wire_lookup_deposit_wtid */
|
|
PREPARE ("lookup_deposit_wtid",
|
|
"SELECT"
|
|
" wtid_raw"
|
|
",execution_time"
|
|
",coin_amount_val"
|
|
",coin_amount_frac"
|
|
",coin_amount_curr"
|
|
",coin_fee_val"
|
|
",coin_fee_frac"
|
|
",coin_fee_curr"
|
|
" FROM aggregation_tracking"
|
|
" WHERE"
|
|
" coin_pub=$1 AND"
|
|
" h_contract=$2 AND"
|
|
" h_wire=$3 AND"
|
|
" transaction_id=$4 AND"
|
|
" merchant_pub=$5",
|
|
5, NULL);
|
|
|
|
/* Used in #postgres_insert_aggregation_tracking */
|
|
PREPARE ("insert_aggregation_tracking",
|
|
"INSERT INTO aggregation_tracking "
|
|
"(h_contract"
|
|
",h_wire"
|
|
",coin_pub"
|
|
",merchant_pub"
|
|
",transaction_id"
|
|
",wtid_raw"
|
|
",execution_time"
|
|
",coin_amount_val"
|
|
",coin_amount_frac"
|
|
",coin_amount_curr"
|
|
",coin_fee_val"
|
|
",coin_fee_frac"
|
|
",coin_fee_curr"
|
|
") VALUES "
|
|
"($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13)",
|
|
13, NULL);
|
|
|
|
|
|
/* Used in #postgres_wire_prepare_data_insert() to store
|
|
wire transfer information before actually committing it with the bank */
|
|
PREPARE ("wire_prepare_data_insert",
|
|
"INSERT INTO prewire "
|
|
"(type"
|
|
",buf"
|
|
") VALUES "
|
|
"($1, $2)",
|
|
2, NULL);
|
|
|
|
/* Used in #postgres_wire_prepare_data_mark_finished() */
|
|
PREPARE ("wire_prepare_data_mark_done",
|
|
"UPDATE prewire"
|
|
" SET finished=true"
|
|
" WHERE serial_id=$1",
|
|
1, NULL);
|
|
|
|
/* Used in #postgres_wire_prepare_data_get() */
|
|
PREPARE ("wire_prepare_data_get",
|
|
"SELECT"
|
|
" serial_id"
|
|
",type"
|
|
",buf"
|
|
" FROM prewire"
|
|
" WHERE"
|
|
" finished=false"
|
|
" ORDER BY serial_id ASC"
|
|
" LIMIT 1",
|
|
0, NULL);
|
|
|
|
return GNUNET_OK;
|
|
#undef PREPARE
|
|
}
|
|
|
|
|
|
/**
|
|
* Close thread-local database connection when a thread is destroyed.
|
|
*
|
|
* @param cls closure we get from pthreads (the db handle)
|
|
*/
|
|
static void
|
|
db_conn_destroy (void *cls)
|
|
{
|
|
struct TALER_EXCHANGEDB_Session *session = cls;
|
|
PGconn *db_conn = session->conn;
|
|
|
|
if (NULL != db_conn)
|
|
PQfinish (db_conn);
|
|
GNUNET_free (session);
|
|
}
|
|
|
|
|
|
/**
|
|
* Get the thread-local database-handle.
|
|
* Connect to the db if the connection does not exist yet.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @return the database connection, or NULL on error
|
|
*/
|
|
static struct TALER_EXCHANGEDB_Session *
|
|
postgres_get_session (void *cls)
|
|
{
|
|
struct PostgresClosure *pc = cls;
|
|
PGconn *db_conn;
|
|
struct TALER_EXCHANGEDB_Session *session;
|
|
|
|
if (NULL != (session = pthread_getspecific (pc->db_conn_threadlocal)))
|
|
return session;
|
|
db_conn = PQconnectdb (pc->connection_cfg_str);
|
|
if (CONNECTION_OK !=
|
|
PQstatus (db_conn))
|
|
{
|
|
TALER_LOG_ERROR ("Database connection failed: %s\n",
|
|
PQerrorMessage (db_conn));
|
|
GNUNET_break (0);
|
|
return NULL;
|
|
}
|
|
PQsetNoticeReceiver (db_conn,
|
|
&pq_notice_receiver_cb,
|
|
NULL);
|
|
PQsetNoticeProcessor (db_conn,
|
|
&pq_notice_processor_cb,
|
|
NULL);
|
|
if (GNUNET_OK !=
|
|
postgres_prepare (db_conn))
|
|
{
|
|
GNUNET_break (0);
|
|
return NULL;
|
|
}
|
|
session = GNUNET_new (struct TALER_EXCHANGEDB_Session);
|
|
session->conn = db_conn;
|
|
if (0 != pthread_setspecific (pc->db_conn_threadlocal,
|
|
session))
|
|
{
|
|
GNUNET_break (0);
|
|
PQfinish (db_conn);
|
|
GNUNET_free (session);
|
|
return NULL;
|
|
}
|
|
return session;
|
|
}
|
|
|
|
|
|
/**
|
|
* Start a transaction.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session the database connection
|
|
* @return #GNUNET_OK on success
|
|
*/
|
|
static int
|
|
postgres_start (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session)
|
|
{
|
|
PGresult *result;
|
|
|
|
result = PQexec (session->conn,
|
|
"BEGIN");
|
|
if (PGRES_COMMAND_OK !=
|
|
PQresultStatus (result))
|
|
{
|
|
TALER_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 cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session the database connection
|
|
* @return #GNUNET_OK on success
|
|
*/
|
|
static void
|
|
postgres_rollback (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session)
|
|
{
|
|
PGresult *result;
|
|
|
|
result = PQexec (session->conn,
|
|
"ROLLBACK");
|
|
GNUNET_break (PGRES_COMMAND_OK ==
|
|
PQresultStatus (result));
|
|
PQclear (result);
|
|
}
|
|
|
|
|
|
/**
|
|
* Commit the current transaction of a database connection.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session the database connection
|
|
* @return #GNUNET_OK on success
|
|
*/
|
|
static int
|
|
postgres_commit (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session)
|
|
{
|
|
PGresult *result;
|
|
|
|
result = PQexec (session->conn,
|
|
"COMMIT");
|
|
if (PGRES_COMMAND_OK !=
|
|
PQresultStatus (result))
|
|
{
|
|
const char *sqlstate;
|
|
|
|
sqlstate = PQresultErrorField (result,
|
|
PG_DIAG_SQLSTATE);
|
|
if (NULL == sqlstate)
|
|
{
|
|
/* very unexpected... */
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
/* 40P01: deadlock, 40001: serialization failure */
|
|
if ( (0 == strcmp (sqlstate,
|
|
"40P01")) ||
|
|
(0 == strcmp (sqlstate,
|
|
"40001")) )
|
|
{
|
|
/* These two can be retried and have a fair chance of working
|
|
the next time */
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
|
|
"Database commit failure: %s\n",
|
|
sqlstate);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Insert a denomination key's public information into the database for
|
|
* reference by auditors and other consistency checks.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to use
|
|
* @param denom_pub the public key used for signing coins of this denomination
|
|
* @param issue issuing information with value, fees and other info about the coin
|
|
* @return #GNUNET_OK on success; #GNUNET_SYSERR on failure
|
|
*/
|
|
static int
|
|
postgres_insert_denomination_info (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_DenominationPublicKey *denom_pub,
|
|
const struct TALER_EXCHANGEDB_DenominationKeyInformationP *issue)
|
|
{
|
|
PGresult *result;
|
|
int ret;
|
|
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_rsa_public_key (denom_pub->rsa_public_key),
|
|
GNUNET_PQ_query_param_auto_from_type (&issue->properties.master),
|
|
GNUNET_PQ_query_param_auto_from_type (&issue->signature),
|
|
GNUNET_PQ_query_param_absolute_time_nbo (&issue->properties.start),
|
|
GNUNET_PQ_query_param_absolute_time_nbo (&issue->properties.expire_withdraw),
|
|
GNUNET_PQ_query_param_absolute_time_nbo (&issue->properties.expire_deposit),
|
|
GNUNET_PQ_query_param_absolute_time_nbo (&issue->properties.expire_legal),
|
|
TALER_PQ_query_param_amount_nbo (&issue->properties.value),
|
|
TALER_PQ_query_param_amount_nbo (&issue->properties.fee_withdraw),
|
|
TALER_PQ_query_param_amount_nbo (&issue->properties.fee_deposit),
|
|
TALER_PQ_query_param_amount_nbo (&issue->properties.fee_refresh),
|
|
TALER_PQ_query_param_amount_nbo (&issue->properties.fee_refund),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
/* check fees match coin currency */
|
|
GNUNET_assert (GNUNET_YES ==
|
|
TALER_amount_cmp_currency_nbo (&issue->properties.value,
|
|
&issue->properties.fee_withdraw));
|
|
GNUNET_assert (GNUNET_YES ==
|
|
TALER_amount_cmp_currency_nbo (&issue->properties.value,
|
|
&issue->properties.fee_deposit));
|
|
GNUNET_assert (GNUNET_YES ==
|
|
TALER_amount_cmp_currency_nbo (&issue->properties.value,
|
|
&issue->properties.fee_refresh));
|
|
GNUNET_assert (GNUNET_YES ==
|
|
TALER_amount_cmp_currency_nbo (&issue->properties.value,
|
|
&issue->properties.fee_refund));
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"denomination_insert",
|
|
params);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
ret = GNUNET_SYSERR;
|
|
BREAK_DB_ERR (result);
|
|
}
|
|
else
|
|
{
|
|
ret = GNUNET_OK;
|
|
}
|
|
PQclear (result);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* Fetch information about a denomination key.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to use
|
|
* @param denom_pub the public key used for signing coins of this denomination
|
|
* @param[out] issue set to issue information with value, fees and other info about the coin, can be NULL
|
|
* @return #GNUNET_OK on success; #GNUNET_NO if no record was found, #GNUNET_SYSERR on failure
|
|
*/
|
|
static int
|
|
postgres_get_denomination_info (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_DenominationPublicKey *denom_pub,
|
|
struct TALER_EXCHANGEDB_DenominationKeyInformationP *issue)
|
|
{
|
|
PGresult *result;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_rsa_public_key (denom_pub->rsa_public_key),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"denomination_get",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
QUERY_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
if (1 != PQntuples (result))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (NULL == issue)
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
{
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_auto_from_type ("master_pub",
|
|
&issue->properties.master),
|
|
GNUNET_PQ_result_spec_auto_from_type ("master_sig",
|
|
&issue->signature),
|
|
GNUNET_PQ_result_spec_absolute_time_nbo ("valid_from",
|
|
&issue->properties.start),
|
|
GNUNET_PQ_result_spec_absolute_time_nbo ("expire_withdraw",
|
|
&issue->properties.expire_withdraw),
|
|
GNUNET_PQ_result_spec_absolute_time_nbo ("expire_deposit",
|
|
&issue->properties.expire_deposit),
|
|
GNUNET_PQ_result_spec_absolute_time_nbo ("expire_legal",
|
|
&issue->properties.expire_legal),
|
|
TALER_PQ_result_spec_amount_nbo ("coin",
|
|
&issue->properties.value),
|
|
TALER_PQ_result_spec_amount_nbo ("fee_withdraw",
|
|
&issue->properties.fee_withdraw),
|
|
TALER_PQ_result_spec_amount_nbo ("fee_deposit",
|
|
&issue->properties.fee_deposit),
|
|
TALER_PQ_result_spec_amount_nbo ("fee_refresh",
|
|
&issue->properties.fee_refresh),
|
|
TALER_PQ_result_spec_amount_nbo ("fee_refund",
|
|
&issue->properties.fee_refund),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
|
|
EXITIF (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result,
|
|
rs,
|
|
0));
|
|
}
|
|
PQclear (result);
|
|
issue->properties.purpose.size = htonl (sizeof (struct TALER_DenominationKeyValidityPS));
|
|
issue->properties.purpose.purpose = htonl (TALER_SIGNATURE_MASTER_DENOMINATION_KEY_VALIDITY);
|
|
GNUNET_CRYPTO_rsa_public_key_hash (denom_pub->rsa_public_key,
|
|
&issue->properties.denom_hash);
|
|
return GNUNET_OK;
|
|
|
|
EXITIF_exit:
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
|
|
/**
|
|
* Get the summary of a reserve.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session the database connection handle
|
|
* @param[in,out] reserve the reserve data. The public key of the reserve should be
|
|
* set in this structure; it is used to query the database. The balance
|
|
* and expiration are then filled accordingly.
|
|
* @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
|
|
*/
|
|
static int
|
|
postgres_reserve_get (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
struct TALER_EXCHANGEDB_Reserve *reserve)
|
|
{
|
|
PGresult *result;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type(&reserve->pub),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"reserve_get",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
QUERY_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
{
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
TALER_PQ_result_spec_amount("current_balance", &reserve->balance),
|
|
GNUNET_PQ_result_spec_absolute_time("expiration_date", &reserve->expiry),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
|
|
EXITIF (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result,
|
|
rs,
|
|
0));
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
|
|
EXITIF_exit:
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
|
|
/**
|
|
* Updates a reserve with the data from the given reserve structure.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session the database connection
|
|
* @param reserve the reserve structure whose data will be used to update the
|
|
* corresponding record in the database.
|
|
* @return #GNUNET_OK upon successful update; #GNUNET_SYSERR upon any error
|
|
*/
|
|
static int
|
|
reserves_update (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_EXCHANGEDB_Reserve *reserve)
|
|
{
|
|
PGresult *result;
|
|
int ret;
|
|
|
|
if (NULL == reserve)
|
|
return GNUNET_SYSERR;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_absolute_time (&reserve->expiry),
|
|
TALER_PQ_query_param_amount (&reserve->balance),
|
|
GNUNET_PQ_query_param_auto_from_type (&reserve->pub),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"reserve_update",
|
|
params);
|
|
if (PGRES_COMMAND_OK != PQresultStatus(result))
|
|
{
|
|
QUERY_ERR (result);
|
|
ret = GNUNET_SYSERR;
|
|
}
|
|
else
|
|
{
|
|
ret = GNUNET_OK;
|
|
}
|
|
PQclear (result);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* Insert an incoming transaction into reserves. New reserves are also created
|
|
* through this function. Note that this API call starts (and stops) its
|
|
* own transaction scope (so the application must not do so).
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session the database connection handle
|
|
* @param reserve_pub public key of the reserve
|
|
* @param balance the amount that has to be added to the reserve
|
|
* @param execution_time when was the amount added
|
|
* @param details bank transaction details justifying the increment,
|
|
* must be unique for each incoming transaction
|
|
* @return #GNUNET_OK upon success; #GNUNET_NO if the given
|
|
* @a details are already known for this @a reserve_pub,
|
|
* #GNUNET_SYSERR upon failures (DB error, incompatible currency)
|
|
*/
|
|
static int
|
|
postgres_reserves_in_insert (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_ReservePublicKeyP *reserve_pub,
|
|
const struct TALER_Amount *balance,
|
|
struct GNUNET_TIME_Absolute execution_time,
|
|
const json_t *details)
|
|
{
|
|
PGresult *result;
|
|
int reserve_exists;
|
|
struct TALER_EXCHANGEDB_Reserve reserve;
|
|
struct GNUNET_TIME_Absolute expiry;
|
|
|
|
if (GNUNET_OK != postgres_start (cls,
|
|
session))
|
|
{
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
reserve.pub = *reserve_pub;
|
|
reserve_exists = postgres_reserve_get (cls,
|
|
session,
|
|
&reserve);
|
|
if (GNUNET_SYSERR == reserve_exists)
|
|
{
|
|
GNUNET_break (0);
|
|
goto rollback;
|
|
}
|
|
expiry = GNUNET_TIME_absolute_add (execution_time,
|
|
TALER_IDLE_RESERVE_EXPIRATION_TIME);
|
|
if (GNUNET_NO == reserve_exists)
|
|
{
|
|
/* New reserve, create balance for the first time; we do this
|
|
before adding the actual transaction to "reserves_in", as
|
|
for a new reserve it can't be a duplicate 'add' operation,
|
|
and as the 'add' operation may need the reserve entry
|
|
as a foreign key. */
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (reserve_pub),
|
|
TALER_PQ_query_param_amount (balance),
|
|
GNUNET_PQ_query_param_absolute_time (&expiry),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
|
|
"Reserve does not exist; creating a new one\n");
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"reserve_create",
|
|
params);
|
|
if (PGRES_COMMAND_OK != PQresultStatus(result))
|
|
{
|
|
QUERY_ERR (result);
|
|
PQclear (result);
|
|
goto rollback;
|
|
}
|
|
PQclear (result);
|
|
}
|
|
/* Create new incoming transaction, SQL "primary key" logic
|
|
is used to guard against duplicates. If a duplicate is
|
|
detected, we rollback (which really shouldn't undo
|
|
anything) and return #GNUNET_NO to indicate that this failure
|
|
is kind-of harmless (already executed). */
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (&reserve.pub),
|
|
TALER_PQ_query_param_amount (balance),
|
|
TALER_PQ_query_param_json (details),
|
|
GNUNET_PQ_query_param_absolute_time (&execution_time),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"reserves_in_add_transaction",
|
|
params);
|
|
}
|
|
if (PGRES_COMMAND_OK != PQresultStatus(result))
|
|
{
|
|
const char *efield;
|
|
|
|
efield = PQresultErrorField (result,
|
|
PG_DIAG_SQLSTATE);
|
|
if ( (PGRES_FATAL_ERROR == PQresultStatus(result)) &&
|
|
(NULL != strstr ("23505", /* unique violation */
|
|
efield)) )
|
|
{
|
|
/* This means we had the same reserve/justification/details
|
|
before */
|
|
PQclear (result);
|
|
postgres_rollback (cls,
|
|
session);
|
|
return GNUNET_NO;
|
|
}
|
|
QUERY_ERR (result);
|
|
PQclear (result);
|
|
goto rollback;
|
|
}
|
|
PQclear (result);
|
|
|
|
if (GNUNET_YES == reserve_exists)
|
|
{
|
|
/* If the reserve already existed, we need to still update the
|
|
balance; we do this after checking for duplication, as
|
|
otherwise we might have to actually pay the cost to roll this
|
|
back for duplicate transactions; like this, we should virtually
|
|
never actually have to rollback anything. */
|
|
struct TALER_EXCHANGEDB_Reserve updated_reserve;
|
|
|
|
updated_reserve.pub = reserve.pub;
|
|
if (GNUNET_OK !=
|
|
TALER_amount_add (&updated_reserve.balance,
|
|
&reserve.balance,
|
|
balance))
|
|
{
|
|
/* currency overflow or incompatible currency */
|
|
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
|
|
"Attempt to deposit incompatible amount into reserve\n");
|
|
goto rollback;
|
|
}
|
|
updated_reserve.expiry = GNUNET_TIME_absolute_max (expiry,
|
|
reserve.expiry);
|
|
if (GNUNET_OK != reserves_update (cls,
|
|
session,
|
|
&updated_reserve))
|
|
goto rollback;
|
|
}
|
|
if (GNUNET_OK != postgres_commit (cls,
|
|
session))
|
|
return GNUNET_SYSERR;
|
|
return GNUNET_OK;
|
|
|
|
rollback:
|
|
postgres_rollback (cls,
|
|
session);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
|
|
/**
|
|
* Locate the response for a /reserve/withdraw request under the
|
|
* key of the hash of the blinded message.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection to use
|
|
* @param h_blind hash of the blinded coin to be signed (will match
|
|
* `h_coin_envelope` in the @a collectable to be returned)
|
|
* @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
|
|
*/
|
|
static int
|
|
postgres_get_withdraw_info (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *h_blind,
|
|
struct TALER_EXCHANGEDB_CollectableBlindcoin *collectable)
|
|
{
|
|
PGresult *result;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (h_blind),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
int ret;
|
|
|
|
ret = GNUNET_SYSERR;
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"get_withdraw_info",
|
|
params);
|
|
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
QUERY_ERR (result);
|
|
goto cleanup;
|
|
}
|
|
if (0 == PQntuples (result))
|
|
{
|
|
ret = GNUNET_NO;
|
|
goto cleanup;
|
|
}
|
|
{
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
|
|
&collectable->denom_pub.rsa_public_key),
|
|
GNUNET_PQ_result_spec_rsa_signature ("denom_sig",
|
|
&collectable->sig.rsa_signature),
|
|
GNUNET_PQ_result_spec_auto_from_type ("reserve_sig",
|
|
&collectable->reserve_sig),
|
|
GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
|
|
&collectable->reserve_pub),
|
|
TALER_PQ_result_spec_amount ("amount_with_fee",
|
|
&collectable->amount_with_fee),
|
|
TALER_PQ_result_spec_amount ("withdraw_fee",
|
|
&collectable->withdraw_fee),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
GNUNET_break (0);
|
|
goto cleanup;
|
|
}
|
|
}
|
|
collectable->h_coin_envelope = *h_blind;
|
|
ret = GNUNET_YES;
|
|
|
|
cleanup:
|
|
PQclear (result);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* Store collectable bit coin under the corresponding
|
|
* hash of the blinded message.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection to use
|
|
* @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
|
|
*/
|
|
static int
|
|
postgres_insert_withdraw_info (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_EXCHANGEDB_CollectableBlindcoin *collectable)
|
|
{
|
|
PGresult *result;
|
|
struct TALER_EXCHANGEDB_Reserve reserve;
|
|
int ret = GNUNET_SYSERR;
|
|
struct GNUNET_TIME_Absolute now;
|
|
struct GNUNET_TIME_Absolute expiry;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (&collectable->h_coin_envelope),
|
|
GNUNET_PQ_query_param_rsa_public_key (collectable->denom_pub.rsa_public_key),
|
|
GNUNET_PQ_query_param_rsa_signature (collectable->sig.rsa_signature),
|
|
GNUNET_PQ_query_param_auto_from_type (&collectable->reserve_pub),
|
|
GNUNET_PQ_query_param_auto_from_type (&collectable->reserve_sig),
|
|
GNUNET_PQ_query_param_absolute_time (&now),
|
|
TALER_PQ_query_param_amount (&collectable->amount_with_fee),
|
|
TALER_PQ_query_param_amount (&collectable->withdraw_fee),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
now = GNUNET_TIME_absolute_get ();
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"insert_withdraw_info",
|
|
params);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
QUERY_ERR (result);
|
|
goto cleanup;
|
|
}
|
|
reserve.pub = collectable->reserve_pub;
|
|
if (GNUNET_OK != postgres_reserve_get (cls,
|
|
session,
|
|
&reserve))
|
|
{
|
|
/* Should have been checked before we got here... */
|
|
GNUNET_break (0);
|
|
goto cleanup;
|
|
}
|
|
if (GNUNET_SYSERR ==
|
|
TALER_amount_subtract (&reserve.balance,
|
|
&reserve.balance,
|
|
&collectable->amount_with_fee))
|
|
{
|
|
/* Should have been checked before we got here... */
|
|
GNUNET_break (0);
|
|
goto cleanup;
|
|
}
|
|
expiry = GNUNET_TIME_absolute_add (now,
|
|
TALER_IDLE_RESERVE_EXPIRATION_TIME);
|
|
reserve.expiry = GNUNET_TIME_absolute_max (expiry,
|
|
reserve.expiry);
|
|
if (GNUNET_OK != reserves_update (cls,
|
|
session,
|
|
&reserve))
|
|
{
|
|
GNUNET_break (0);
|
|
goto cleanup;
|
|
}
|
|
ret = GNUNET_OK;
|
|
cleanup:
|
|
PQclear (result);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* Get all of the transaction history associated with the specified
|
|
* reserve.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session connection to use
|
|
* @param reserve_pub public key of the reserve
|
|
* @return known transaction history (NULL if reserve is unknown)
|
|
*/
|
|
static struct TALER_EXCHANGEDB_ReserveHistory *
|
|
postgres_get_reserve_history (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_ReservePublicKeyP *reserve_pub)
|
|
{
|
|
PGresult *result;
|
|
struct TALER_EXCHANGEDB_ReserveHistory *rh;
|
|
struct TALER_EXCHANGEDB_ReserveHistory *rh_tail;
|
|
int rows;
|
|
int ret;
|
|
|
|
rh = NULL;
|
|
rh_tail = NULL;
|
|
ret = GNUNET_SYSERR;
|
|
{
|
|
struct TALER_EXCHANGEDB_BankTransfer *bt;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (reserve_pub),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"reserves_in_get_transactions",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
QUERY_ERR (result);
|
|
goto cleanup;
|
|
}
|
|
if (0 == (rows = PQntuples (result)))
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
|
|
"Asked to fetch history for an unknown reserve.\n");
|
|
goto cleanup;
|
|
}
|
|
while (0 < rows)
|
|
{
|
|
bt = GNUNET_new (struct TALER_EXCHANGEDB_BankTransfer);
|
|
{
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
TALER_PQ_result_spec_amount ("balance",
|
|
&bt->amount),
|
|
GNUNET_PQ_result_spec_absolute_time ("execution_date",
|
|
&bt->execution_date),
|
|
TALER_PQ_result_spec_json ("details",
|
|
&bt->wire),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, --rows))
|
|
{
|
|
GNUNET_break (0);
|
|
GNUNET_free (bt);
|
|
PQclear (result);
|
|
goto cleanup;
|
|
}
|
|
}
|
|
bt->reserve_pub = *reserve_pub;
|
|
if (NULL != rh_tail)
|
|
{
|
|
rh_tail->next = GNUNET_new (struct TALER_EXCHANGEDB_ReserveHistory);
|
|
rh_tail = rh_tail->next;
|
|
}
|
|
else
|
|
{
|
|
rh_tail = GNUNET_new (struct TALER_EXCHANGEDB_ReserveHistory);
|
|
rh = rh_tail;
|
|
}
|
|
rh_tail->type = TALER_EXCHANGEDB_RO_BANK_TO_EXCHANGE;
|
|
rh_tail->details.bank = bt;
|
|
}
|
|
PQclear (result);
|
|
}
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (reserve_pub),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
GNUNET_assert (NULL != rh);
|
|
GNUNET_assert (NULL != rh_tail);
|
|
GNUNET_assert (NULL == rh_tail->next);
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"get_reserves_out",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
QUERY_ERR (result);
|
|
PQclear (result);
|
|
goto cleanup;
|
|
}
|
|
rows = PQntuples (result);
|
|
while (0 < rows)
|
|
{
|
|
struct TALER_EXCHANGEDB_CollectableBlindcoin *cbc;
|
|
|
|
cbc = GNUNET_new (struct TALER_EXCHANGEDB_CollectableBlindcoin);
|
|
{
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_auto_from_type ("h_blind_ev",
|
|
&cbc->h_coin_envelope),
|
|
GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
|
|
&cbc->denom_pub.rsa_public_key),
|
|
GNUNET_PQ_result_spec_rsa_signature ("denom_sig",
|
|
&cbc->sig.rsa_signature),
|
|
GNUNET_PQ_result_spec_auto_from_type ("reserve_sig",
|
|
&cbc->reserve_sig),
|
|
TALER_PQ_result_spec_amount ("amount_with_fee",
|
|
&cbc->amount_with_fee),
|
|
TALER_PQ_result_spec_amount ("withdraw_fee",
|
|
&cbc->withdraw_fee),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, --rows))
|
|
{
|
|
GNUNET_break (0);
|
|
GNUNET_free (cbc);
|
|
PQclear (result);
|
|
goto cleanup;
|
|
}
|
|
cbc->reserve_pub = *reserve_pub;
|
|
}
|
|
rh_tail->next = GNUNET_new (struct TALER_EXCHANGEDB_ReserveHistory);
|
|
rh_tail = rh_tail->next;
|
|
rh_tail->type = TALER_EXCHANGEDB_RO_WITHDRAW_COIN;
|
|
rh_tail->details.withdraw = cbc;
|
|
}
|
|
ret = GNUNET_OK;
|
|
PQclear (result);
|
|
}
|
|
cleanup:
|
|
if (GNUNET_SYSERR == ret)
|
|
{
|
|
common_free_reserve_history (cls,
|
|
rh);
|
|
rh = NULL;
|
|
}
|
|
return rh;
|
|
}
|
|
|
|
|
|
/**
|
|
* Check if we have the specified deposit already in the database.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection
|
|
* @param deposit deposit to search for
|
|
* @return #GNUNET_YES if we know this operation,
|
|
* #GNUNET_NO if this exact deposit is unknown to us
|
|
* #GNUNET_SYSERR on DB error
|
|
*/
|
|
static int
|
|
postgres_have_deposit (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_EXCHANGEDB_Deposit *deposit)
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (&deposit->coin.coin_pub),
|
|
GNUNET_PQ_query_param_uint64 (&deposit->transaction_id),
|
|
GNUNET_PQ_query_param_auto_from_type (&deposit->merchant_pub),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
PGresult *result;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->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;
|
|
}
|
|
|
|
/* Now we check that the other information in @a deposit
|
|
also matches, and if not report inconsistencies. */
|
|
{
|
|
struct TALER_EXCHANGEDB_Deposit deposit2;
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
TALER_PQ_result_spec_amount ("amount_with_fee",
|
|
&deposit2.amount_with_fee),
|
|
GNUNET_PQ_result_spec_absolute_time ("timestamp",
|
|
&deposit2.timestamp),
|
|
GNUNET_PQ_result_spec_absolute_time ("refund_deadline",
|
|
&deposit2.refund_deadline),
|
|
GNUNET_PQ_result_spec_absolute_time ("wire_deadline",
|
|
&deposit2.wire_deadline),
|
|
GNUNET_PQ_result_spec_auto_from_type ("h_contract",
|
|
&deposit2.h_contract),
|
|
GNUNET_PQ_result_spec_auto_from_type ("h_wire",
|
|
&deposit2.h_wire),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if ( (0 != TALER_amount_cmp (&deposit->amount_with_fee,
|
|
&deposit2.amount_with_fee)) ||
|
|
(deposit->timestamp.abs_value_us !=
|
|
deposit2.timestamp.abs_value_us) ||
|
|
(deposit->refund_deadline.abs_value_us !=
|
|
deposit2.refund_deadline.abs_value_us) ||
|
|
(0 != memcmp (&deposit->h_contract,
|
|
&deposit2.h_contract,
|
|
sizeof (struct GNUNET_HashCode))) ||
|
|
(0 != memcmp (&deposit->h_wire,
|
|
&deposit2.h_wire,
|
|
sizeof (struct GNUNET_HashCode))) )
|
|
{
|
|
/* Inconsistencies detected! Does not match! (We might want to
|
|
expand the API with a 'get_deposit' function to return the
|
|
original transaction details to be used for an error message
|
|
in the future!) #3838 */
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_YES;
|
|
}
|
|
|
|
|
|
/**
|
|
* Mark a deposit as tiny, thereby declaring that it cannot be
|
|
* executed by itself and should no longer be returned by
|
|
* @e iterate_ready_deposits()
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param deposit_rowid identifies the deposit row to modify
|
|
* @return #GNUNET_OK on success, #GNUNET_SYSERR on error
|
|
*/
|
|
static int
|
|
postgres_mark_deposit_tiny (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
unsigned long long rowid)
|
|
{
|
|
uint64_t serial_id = rowid;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_uint64 (&serial_id),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
PGresult *result;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"mark_deposit_tiny",
|
|
params);
|
|
if (PGRES_COMMAND_OK !=
|
|
PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Test if a deposit was marked as done, thereby declaring that it cannot be
|
|
* refunded anymore.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param deposit the deposit to check
|
|
* @return #GNUNET_YES if is is marked done done, #GNUNET_NO if not,
|
|
* #GNUNET_SYSERR on error (deposit unknown)
|
|
*/
|
|
static int
|
|
postgres_test_deposit_done (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_EXCHANGEDB_Deposit *deposit)
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (&deposit->coin.coin_pub),
|
|
GNUNET_PQ_query_param_uint64 (&deposit->transaction_id),
|
|
GNUNET_PQ_query_param_auto_from_type (&deposit->merchant_pub),
|
|
GNUNET_PQ_query_param_auto_from_type (&deposit->h_contract),
|
|
GNUNET_PQ_query_param_auto_from_type (&deposit->h_wire),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
PGresult *result;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"test_deposit_done",
|
|
params);
|
|
if (PGRES_TUPLES_OK !=
|
|
PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
{
|
|
/* NOTE: maybe wrong type for a 'boolean' */
|
|
uint32_t done;
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_uint32 ("done",
|
|
&done),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return (done ? GNUNET_YES : GNUNET_NO);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Mark a deposit as done, thereby declaring that it cannot be
|
|
* executed at all anymore, and should no longer be returned by
|
|
* @e iterate_ready_deposits() or @e iterate_matching_deposits().
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param deposit_rowid identifies the deposit row to modify
|
|
* @return #GNUNET_OK on success, #GNUNET_SYSERR on error
|
|
*/
|
|
static int
|
|
postgres_mark_deposit_done (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
unsigned long long rowid)
|
|
{
|
|
uint64_t serial_id = rowid;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_uint64 (&serial_id),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
PGresult *result;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"mark_deposit_done",
|
|
params);
|
|
if (PGRES_COMMAND_OK !=
|
|
PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Obtain information about deposits that are ready to be executed.
|
|
* Such deposits must not be marked as "tiny" or "done", and the
|
|
* execution time must be in the past.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param deposit_cb function to call for ONE such deposit
|
|
* @param deposit_cb_cls closure for @a deposit_cb
|
|
* @return number of rows processed, 0 if none exist,
|
|
* #GNUNET_SYSERR on error
|
|
*/
|
|
static int
|
|
postgres_get_ready_deposit (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
TALER_EXCHANGEDB_DepositIterator deposit_cb,
|
|
void *deposit_cb_cls)
|
|
{
|
|
struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_absolute_time (&now),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
PGresult *result;
|
|
unsigned int n;
|
|
int ret;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"deposits_get_ready",
|
|
params);
|
|
if (PGRES_TUPLES_OK !=
|
|
PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (0 == (n = PQntuples (result)))
|
|
{
|
|
PQclear (result);
|
|
return 0;
|
|
}
|
|
GNUNET_break (1 == n);
|
|
{
|
|
struct TALER_Amount amount_with_fee;
|
|
struct TALER_Amount deposit_fee;
|
|
struct GNUNET_TIME_Absolute wire_deadline;
|
|
struct GNUNET_HashCode h_contract;
|
|
struct TALER_MerchantPublicKeyP merchant_pub;
|
|
struct TALER_CoinSpendPublicKeyP coin_pub;
|
|
uint64_t transaction_id;
|
|
uint64_t serial_id;
|
|
json_t *wire;
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_uint64 ("serial_id",
|
|
&serial_id),
|
|
GNUNET_PQ_result_spec_uint64 ("transaction_id",
|
|
&transaction_id),
|
|
TALER_PQ_result_spec_amount ("amount_with_fee",
|
|
&amount_with_fee),
|
|
TALER_PQ_result_spec_amount ("deposit_fee",
|
|
&deposit_fee),
|
|
GNUNET_PQ_result_spec_absolute_time ("wire_deadline",
|
|
&wire_deadline),
|
|
GNUNET_PQ_result_spec_auto_from_type ("h_contract",
|
|
&h_contract),
|
|
GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
|
|
&merchant_pub),
|
|
GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
|
|
&coin_pub),
|
|
TALER_PQ_result_spec_json ("wire",
|
|
&wire),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
ret = deposit_cb (deposit_cb_cls,
|
|
serial_id,
|
|
&merchant_pub,
|
|
&coin_pub,
|
|
&amount_with_fee,
|
|
&deposit_fee,
|
|
transaction_id,
|
|
&h_contract,
|
|
wire_deadline,
|
|
wire);
|
|
GNUNET_PQ_cleanup_result (rs);
|
|
PQclear (result);
|
|
}
|
|
return (GNUNET_OK == ret) ? 1 : 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* Obtain information about other pending deposits for the same
|
|
* destination. Those deposits must not already be "done".
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param h_wire destination of the wire transfer
|
|
* @param merchant_pub public key of the merchant
|
|
* @param deposit_cb function to call for each deposit
|
|
* @param deposit_cb_cls closure for @a deposit_cb
|
|
* @param limit maximum number of matching deposits to return
|
|
* @return number of rows processed, 0 if none exist,
|
|
* #GNUNET_SYSERR on error
|
|
*/
|
|
static int
|
|
postgres_iterate_matching_deposits (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *h_wire,
|
|
const struct TALER_MerchantPublicKeyP *merchant_pub,
|
|
TALER_EXCHANGEDB_DepositIterator deposit_cb,
|
|
void *deposit_cb_cls,
|
|
uint32_t limit)
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (merchant_pub),
|
|
GNUNET_PQ_query_param_auto_from_type (h_wire),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
PGresult *result;
|
|
unsigned int i;
|
|
unsigned int n;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"deposits_iterate_matching",
|
|
params);
|
|
if (PGRES_TUPLES_OK !=
|
|
PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (0 == (n = PQntuples (result)))
|
|
{
|
|
PQclear (result);
|
|
return 0;
|
|
}
|
|
if (n > limit)
|
|
n = limit;
|
|
for (i=0;i<n;i++)
|
|
{
|
|
struct TALER_Amount amount_with_fee;
|
|
struct TALER_Amount deposit_fee;
|
|
struct GNUNET_TIME_Absolute wire_deadline;
|
|
struct GNUNET_HashCode h_contract;
|
|
struct TALER_CoinSpendPublicKeyP coin_pub;
|
|
uint64_t transaction_id;
|
|
uint64_t serial_id;
|
|
int ret;
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_uint64 ("serial_id",
|
|
&serial_id),
|
|
GNUNET_PQ_result_spec_uint64 ("transaction_id",
|
|
&transaction_id),
|
|
TALER_PQ_result_spec_amount ("amount_with_fee",
|
|
&amount_with_fee),
|
|
TALER_PQ_result_spec_amount ("deposit_fee",
|
|
&deposit_fee),
|
|
GNUNET_PQ_result_spec_absolute_time ("wire_deadline",
|
|
&wire_deadline),
|
|
GNUNET_PQ_result_spec_auto_from_type ("h_contract",
|
|
&h_contract),
|
|
GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
|
|
&coin_pub),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, i))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
ret = deposit_cb (deposit_cb_cls,
|
|
serial_id,
|
|
merchant_pub,
|
|
&coin_pub,
|
|
&amount_with_fee,
|
|
&deposit_fee,
|
|
transaction_id,
|
|
&h_contract,
|
|
wire_deadline,
|
|
NULL);
|
|
GNUNET_PQ_cleanup_result (rs);
|
|
if (GNUNET_OK != ret)
|
|
break;
|
|
}
|
|
PQclear (result);
|
|
return i;
|
|
}
|
|
|
|
|
|
/**
|
|
* Retrieve the record for a known coin.
|
|
*
|
|
* @param cls the plugin closure
|
|
* @param session the database session handle
|
|
* @param coin_pub the public key of the coin to search for
|
|
* @param coin_info place holder for the returned coin information object
|
|
* @return #GNUNET_SYSERR upon error; #GNUNET_NO if no coin is found; #GNUNET_OK
|
|
* if upon succesfullying retrieving the record data info @a
|
|
* coin_info
|
|
*/
|
|
static int
|
|
get_known_coin (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
struct TALER_CoinPublicInfo *coin_info)
|
|
{
|
|
PGresult *result;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (coin_pub),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
int nrows;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"get_known_coin",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
nrows = PQntuples (result);
|
|
if (0 == nrows)
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
GNUNET_assert (1 == nrows); /* due to primary key */
|
|
if (NULL == coin_info)
|
|
return GNUNET_YES;
|
|
{
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
|
|
&coin_info->denom_pub.rsa_public_key),
|
|
GNUNET_PQ_result_spec_rsa_signature ("denom_sig",
|
|
&coin_info->denom_sig.rsa_signature),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
PQclear (result);
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
}
|
|
PQclear (result);
|
|
coin_info->coin_pub = *coin_pub;
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Insert a coin we know of into the DB. The coin can then be referenced by
|
|
* tables for deposits, refresh and refund functionality.
|
|
*
|
|
* @param cls plugin closure
|
|
* @param session the shared database session
|
|
* @param coin_info the public coin info
|
|
* @return #GNUNET_SYSERR upon error; #GNUNET_OK upon success
|
|
*/
|
|
static int
|
|
insert_known_coin (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_CoinPublicInfo *coin_info)
|
|
{
|
|
PGresult *result;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (&coin_info->coin_pub),
|
|
GNUNET_PQ_query_param_rsa_public_key (coin_info->denom_pub.rsa_public_key),
|
|
GNUNET_PQ_query_param_rsa_signature (coin_info->denom_sig.rsa_signature),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"insert_known_coin",
|
|
params);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Insert information about deposited coin into the database.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param deposit deposit information to store
|
|
* @return #GNUNET_OK on success, #GNUNET_SYSERR on error
|
|
*/
|
|
static int
|
|
postgres_insert_deposit (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_EXCHANGEDB_Deposit *deposit)
|
|
{
|
|
PGresult *result;
|
|
int ret;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (&deposit->coin.coin_pub),
|
|
GNUNET_PQ_query_param_uint64 (&deposit->transaction_id),
|
|
TALER_PQ_query_param_amount (&deposit->amount_with_fee),
|
|
TALER_PQ_query_param_amount (&deposit->deposit_fee),
|
|
GNUNET_PQ_query_param_absolute_time (&deposit->timestamp),
|
|
GNUNET_PQ_query_param_absolute_time (&deposit->refund_deadline),
|
|
GNUNET_PQ_query_param_absolute_time (&deposit->wire_deadline),
|
|
GNUNET_PQ_query_param_auto_from_type (&deposit->merchant_pub),
|
|
GNUNET_PQ_query_param_auto_from_type (&deposit->h_contract),
|
|
GNUNET_PQ_query_param_auto_from_type (&deposit->h_wire),
|
|
GNUNET_PQ_query_param_auto_from_type (&deposit->csig),
|
|
TALER_PQ_query_param_json (deposit->wire),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
/* check if the coin is already known */
|
|
ret = get_known_coin (cls,
|
|
session,
|
|
&deposit->coin.coin_pub,
|
|
NULL);
|
|
if (GNUNET_SYSERR == ret)
|
|
{
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (GNUNET_NO == ret) /* if not, insert it */
|
|
{
|
|
if (GNUNET_SYSERR ==
|
|
insert_known_coin (cls,
|
|
session,
|
|
&deposit->coin))
|
|
{
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
}
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"insert_deposit",
|
|
params);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
ret = GNUNET_SYSERR;
|
|
}
|
|
else
|
|
{
|
|
ret = GNUNET_OK;
|
|
}
|
|
PQclear (result);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* Insert information about refunded coin into the database.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param refund refund information to store
|
|
* @return #GNUNET_OK on success, #GNUNET_SYSERR on error
|
|
*/
|
|
static int
|
|
postgres_insert_refund (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_EXCHANGEDB_Refund *refund)
|
|
{
|
|
PGresult *result;
|
|
int ret;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (&refund->coin.coin_pub),
|
|
GNUNET_PQ_query_param_auto_from_type (&refund->merchant_pub),
|
|
GNUNET_PQ_query_param_auto_from_type (&refund->merchant_sig),
|
|
GNUNET_PQ_query_param_auto_from_type (&refund->h_contract),
|
|
GNUNET_PQ_query_param_uint64 (&refund->transaction_id),
|
|
GNUNET_PQ_query_param_uint64 (&refund->rtransaction_id),
|
|
TALER_PQ_query_param_amount (&refund->refund_amount),
|
|
TALER_PQ_query_param_amount (&refund->refund_fee),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
GNUNET_assert (GNUNET_YES ==
|
|
TALER_amount_cmp_currency (&refund->refund_amount,
|
|
&refund->refund_fee));
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"insert_refund",
|
|
params);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
ret = GNUNET_SYSERR;
|
|
BREAK_DB_ERR (result);
|
|
}
|
|
else
|
|
{
|
|
ret = GNUNET_OK;
|
|
}
|
|
PQclear (result);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* Lookup refresh session data under the given @a session_hash.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database handle to use
|
|
* @param session_hash hash over the melt to use to locate the session
|
|
* @param[out] refresh_session where to store the result, can be NULL
|
|
* to just check if the session exists
|
|
* @return #GNUNET_YES on success,
|
|
* #GNUNET_NO if not found,
|
|
* #GNUNET_SYSERR on DB failure
|
|
*/
|
|
static int
|
|
postgres_get_refresh_session (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *session_hash,
|
|
struct TALER_EXCHANGEDB_RefreshSession *refresh_session)
|
|
{
|
|
PGresult *result;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (session_hash),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"get_refresh_session",
|
|
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));
|
|
if (NULL == refresh_session)
|
|
{
|
|
/* We're done if the caller is only interested in whether the
|
|
* session exists or not */
|
|
PQclear (result);
|
|
return GNUNET_YES;
|
|
}
|
|
memset (refresh_session,
|
|
0,
|
|
sizeof (struct TALER_EXCHANGEDB_RefreshSession));
|
|
{
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_uint16 ("num_oldcoins",
|
|
&refresh_session->num_oldcoins),
|
|
GNUNET_PQ_result_spec_uint16 ("num_newcoins",
|
|
&refresh_session->num_newcoins),
|
|
GNUNET_PQ_result_spec_uint16 ("noreveal_index",
|
|
&refresh_session->noreveal_index),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_YES;
|
|
}
|
|
|
|
|
|
/**
|
|
* Store new refresh session data under the given @a session_hash.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database handle to use
|
|
* @param session_hash hash over the melt to use to locate the session
|
|
* @param refresh_session session data to store
|
|
* @return #GNUNET_YES on success,
|
|
* #GNUNET_SYSERR on DB failure
|
|
*/
|
|
static int
|
|
postgres_create_refresh_session (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *session_hash,
|
|
const struct TALER_EXCHANGEDB_RefreshSession *refresh_session)
|
|
{
|
|
PGresult *result;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (session_hash),
|
|
GNUNET_PQ_query_param_uint16 (&refresh_session->num_oldcoins),
|
|
GNUNET_PQ_query_param_uint16 (&refresh_session->num_newcoins),
|
|
GNUNET_PQ_query_param_uint16 (&refresh_session->noreveal_index),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->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;
|
|
}
|
|
|
|
|
|
/**
|
|
* Store the given /refresh/melt request in the database.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection
|
|
* @param oldcoin_index index of the coin to store
|
|
* @param melt melt operation details to store; includes
|
|
* the session hash of the melt
|
|
* @return #GNUNET_OK on success
|
|
* #GNUNET_SYSERR on internal error
|
|
*/
|
|
static int
|
|
postgres_insert_refresh_melt (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint16_t oldcoin_index,
|
|
const struct TALER_EXCHANGEDB_RefreshMelt *melt)
|
|
{
|
|
PGresult *result;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (&melt->coin.coin_pub),
|
|
GNUNET_PQ_query_param_auto_from_type (&melt->session_hash),
|
|
GNUNET_PQ_query_param_uint16 (&oldcoin_index),
|
|
GNUNET_PQ_query_param_auto_from_type (&melt->coin_sig),
|
|
TALER_PQ_query_param_amount (&melt->amount_with_fee),
|
|
TALER_PQ_query_param_amount (&melt->melt_fee),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
int ret;
|
|
|
|
/* check if the coin is already known */
|
|
ret = get_known_coin (cls,
|
|
session,
|
|
&melt->coin.coin_pub,
|
|
NULL);
|
|
if (GNUNET_SYSERR == ret)
|
|
{
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (GNUNET_NO == ret) /* if not, insert it */
|
|
{
|
|
if (GNUNET_SYSERR ==
|
|
insert_known_coin (cls,
|
|
session,
|
|
&melt->coin))
|
|
{
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
}
|
|
/* insert the melt */
|
|
result = GNUNET_PQ_exec_prepared (session->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;
|
|
}
|
|
|
|
|
|
/**
|
|
* Get information about melted coin details from the database.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection
|
|
* @param session_hash session hash of the melt operation
|
|
* @param oldcoin_index index of the coin to retrieve
|
|
* @param melt melt data to fill in, can be NULL
|
|
* @return #GNUNET_OK on success
|
|
* #GNUNET_SYSERR on internal error
|
|
*/
|
|
static int
|
|
postgres_get_refresh_melt (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *session_hash,
|
|
uint16_t oldcoin_index,
|
|
struct TALER_EXCHANGEDB_RefreshMelt *melt)
|
|
{
|
|
PGresult *result;
|
|
struct TALER_CoinPublicInfo coin;
|
|
struct TALER_CoinSpendSignatureP coin_sig;
|
|
struct TALER_Amount amount_with_fee;
|
|
struct TALER_Amount melt_fee;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (session_hash),
|
|
GNUNET_PQ_query_param_uint16 (&oldcoin_index),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
int nrows;
|
|
|
|
/* check if the melt record exists and get it */
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"get_refresh_melt",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
nrows = PQntuples (result);
|
|
if (0 == nrows)
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
|
|
"get_refresh_melt() returned 0 matching rows\n");
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
GNUNET_assert (1 == nrows); /* due to primary key constraint */
|
|
{
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_auto_from_type ("coin_pub", &coin.coin_pub),
|
|
GNUNET_PQ_result_spec_auto_from_type ("coin_sig", &coin_sig),
|
|
TALER_PQ_result_spec_amount ("amount_with_fee", &amount_with_fee),
|
|
TALER_PQ_result_spec_amount ("melt_fee", &melt_fee),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
if (GNUNET_OK != GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
}
|
|
/* fetch the coin info and denomination info */
|
|
if (GNUNET_OK !=
|
|
get_known_coin (cls,
|
|
session,
|
|
&coin.coin_pub,
|
|
&coin))
|
|
return GNUNET_SYSERR;
|
|
if (NULL == melt)
|
|
{
|
|
GNUNET_CRYPTO_rsa_signature_free (coin.denom_sig.rsa_signature);
|
|
GNUNET_CRYPTO_rsa_public_key_free (coin.denom_pub.rsa_public_key);
|
|
return GNUNET_OK;
|
|
}
|
|
melt->coin = coin;
|
|
melt->coin_sig = coin_sig;
|
|
melt->session_hash = *session_hash;
|
|
melt->amount_with_fee = amount_with_fee;
|
|
melt->melt_fee = melt_fee;
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Store in the database which coin(s) we want to create
|
|
* in a given refresh operation.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection
|
|
* @param session_hash hash to identify refresh session
|
|
* @param num_newcoins number of coins to generate, size of the @a denom_pubs array
|
|
* @param denom_pubs array denominations of the coins to create
|
|
* @return #GNUNET_OK on success
|
|
* #GNUNET_SYSERR on internal error
|
|
*/
|
|
static int
|
|
postgres_insert_refresh_order (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *session_hash,
|
|
uint16_t num_newcoins,
|
|
const struct TALER_DenominationPublicKey *denom_pubs)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i=0;i<(unsigned int) num_newcoins;i++)
|
|
{
|
|
uint16_t newcoin_off = (uint16_t) i;
|
|
PGresult *result;
|
|
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_uint16 (&newcoin_off),
|
|
GNUNET_PQ_query_param_auto_from_type (session_hash),
|
|
GNUNET_PQ_query_param_rsa_public_key (denom_pubs[i].rsa_public_key),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
result = GNUNET_PQ_exec_prepared (session->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;
|
|
}
|
|
|
|
|
|
/**
|
|
* We allocated some @a denom_pubs information, but now need
|
|
* to abort. Free allocated memory.
|
|
*
|
|
* @param denom_pubs data to free (but not the array itself)
|
|
* @param denom_pubs_len length of @a denom_pubs array
|
|
*/
|
|
static void
|
|
free_dpk_result (struct TALER_DenominationPublicKey *denom_pubs,
|
|
unsigned int denom_pubs_len)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i=0;i<denom_pubs_len;i++)
|
|
{
|
|
GNUNET_CRYPTO_rsa_public_key_free (denom_pubs[i].rsa_public_key);
|
|
denom_pubs[i].rsa_public_key = NULL;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Lookup in the database the coins that we want to
|
|
* create in the given refresh operation.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection
|
|
* @param session_hash hash to identify refresh session
|
|
* @param num_newcoins size of the array of the @a denom_pubs array
|
|
* @param denom_pubs where to store the deomination keys
|
|
* @return #GNUNET_OK on success
|
|
* #GNUNET_SYSERR on internal error
|
|
*/
|
|
static int
|
|
postgres_get_refresh_order (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *session_hash,
|
|
uint16_t num_newcoins,
|
|
struct TALER_DenominationPublicKey *denom_pubs)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i=0;i<(unsigned int) num_newcoins;i++)
|
|
{
|
|
uint16_t newcoin_off = (uint16_t) i;
|
|
PGresult *result;
|
|
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (session_hash),
|
|
GNUNET_PQ_query_param_uint16 (&newcoin_off),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"get_refresh_order",
|
|
params);
|
|
}
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
free_dpk_result (denom_pubs, i);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
/* FIXME: may want to distinguish between different error cases! */
|
|
free_dpk_result (denom_pubs, i);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
GNUNET_assert (1 == PQntuples (result));
|
|
{
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
|
|
&denom_pubs[i].rsa_public_key),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
PQclear (result);
|
|
GNUNET_break (0);
|
|
free_dpk_result (denom_pubs, i);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
}
|
|
}
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Store information about the commitment of the
|
|
* given coin for the given refresh session in the database.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection to use
|
|
* @param session_hash hash to identify refresh session
|
|
* @param cnc_index cut and choose index (1st dimension)
|
|
* @param num_newcoins coin index size of the @a commit_coins array
|
|
* @param commit_coins array of coin commitments to store
|
|
* @return #GNUNET_OK on success
|
|
* #GNUNET_SYSERR on error
|
|
*/
|
|
static int
|
|
postgres_insert_refresh_commit_coins (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *session_hash,
|
|
uint16_t cnc_index,
|
|
uint16_t num_newcoins,
|
|
const struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins)
|
|
{
|
|
char *rle;
|
|
size_t rle_size;
|
|
PGresult *result;
|
|
unsigned int i;
|
|
uint16_t coin_off;
|
|
|
|
for (i=0;i<(unsigned int) num_newcoins;i++)
|
|
{
|
|
rle = TALER_refresh_link_encrypted_encode (commit_coins[i].refresh_link,
|
|
&rle_size);
|
|
if (NULL == rle)
|
|
{
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
coin_off = (uint16_t) i;
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (session_hash),
|
|
GNUNET_PQ_query_param_uint16 (&cnc_index),
|
|
GNUNET_PQ_query_param_uint16 (&coin_off),
|
|
GNUNET_PQ_query_param_fixed_size (rle,
|
|
rle_size),
|
|
GNUNET_PQ_query_param_fixed_size (commit_coins[i].coin_ev,
|
|
commit_coins[i].coin_ev_size),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"insert_refresh_commit_coin",
|
|
params);
|
|
}
|
|
GNUNET_free (rle);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (0 != strcmp ("1", PQcmdTuples (result)))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
}
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* We allocated some @a commit_coin information, but now need
|
|
* to abort. Free allocated memory.
|
|
*
|
|
* @param commit_coins data to free (but not the array itself)
|
|
* @param commit_coins_len length of @a commit_coins array
|
|
*/
|
|
static void
|
|
free_cc_result (struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins,
|
|
unsigned int commit_coins_len)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i=0;i<commit_coins_len;i++)
|
|
{
|
|
GNUNET_free (commit_coins[i].refresh_link);
|
|
commit_coins[i].refresh_link = NULL;
|
|
GNUNET_free (commit_coins[i].coin_ev);
|
|
commit_coins[i].coin_ev = NULL;
|
|
commit_coins[i].coin_ev_size = 0;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Obtain information about the commitment of the
|
|
* given coin of the given refresh session from the database.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection to use
|
|
* @param session_hash hash to identify refresh session
|
|
* @param cnc_index set index (1st dimension)
|
|
* @param num_newcoins size of the @a commit_coins array
|
|
* @param[out] commit_coins array of coin commitments to return
|
|
* @return #GNUNET_OK on success
|
|
* #GNUNET_NO if not found
|
|
* #GNUNET_SYSERR on error
|
|
*/
|
|
static int
|
|
postgres_get_refresh_commit_coins (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *session_hash,
|
|
uint16_t cnc_index,
|
|
uint16_t num_newcoins,
|
|
struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i=0;i<(unsigned int) num_newcoins;i++)
|
|
{
|
|
uint16_t newcoin_off = (uint16_t) i;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (session_hash),
|
|
GNUNET_PQ_query_param_uint16 (&cnc_index),
|
|
GNUNET_PQ_query_param_uint16 (&newcoin_off),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
void *c_buf;
|
|
size_t c_buf_size;
|
|
void *rl_buf;
|
|
size_t rl_buf_size;
|
|
struct TALER_RefreshLinkEncrypted *rl;
|
|
PGresult *result;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"get_refresh_commit_coin",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
free_cc_result (commit_coins, i);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
free_cc_result (commit_coins, i);
|
|
return GNUNET_NO;
|
|
}
|
|
{
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_variable_size ("link_vector_enc",
|
|
&rl_buf,
|
|
&rl_buf_size),
|
|
GNUNET_PQ_result_spec_variable_size ("coin_ev",
|
|
&c_buf,
|
|
&c_buf_size),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
|
|
if (GNUNET_YES !=
|
|
GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
PQclear (result);
|
|
free_cc_result (commit_coins, i);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
}
|
|
PQclear (result);
|
|
if (rl_buf_size < sizeof (struct TALER_CoinSpendPrivateKeyP))
|
|
{
|
|
GNUNET_free (c_buf);
|
|
GNUNET_free (rl_buf);
|
|
free_cc_result (commit_coins, i);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
rl = TALER_refresh_link_encrypted_decode (rl_buf,
|
|
rl_buf_size);
|
|
GNUNET_free (rl_buf);
|
|
commit_coins[i].refresh_link = rl;
|
|
commit_coins[i].coin_ev = c_buf;
|
|
commit_coins[i].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 cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection to use
|
|
* @param session_hash hash to identify refresh session
|
|
* @param cnc_index cut and choose index (1st dimension)
|
|
* @param num_links size of the @a links array to return
|
|
* @param[out] links array of link information to store return
|
|
* @return #GNUNET_SYSERR on internal error, #GNUNET_OK on success
|
|
*/
|
|
static int
|
|
postgres_insert_refresh_commit_links (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *session_hash,
|
|
uint16_t cnc_index,
|
|
uint16_t num_links,
|
|
const struct TALER_RefreshCommitLinkP *links)
|
|
{
|
|
uint16_t i;
|
|
|
|
for (i=0;i<num_links;i++)
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (session_hash),
|
|
GNUNET_PQ_query_param_auto_from_type (&links[i].transfer_pub),
|
|
GNUNET_PQ_query_param_uint16 (&cnc_index),
|
|
GNUNET_PQ_query_param_uint16 (&i),
|
|
GNUNET_PQ_query_param_auto_from_type (&links[i].shared_secret_enc),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
PGresult *result = GNUNET_PQ_exec_prepared (session->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 cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection to use
|
|
* @param session_hash hash to identify refresh session
|
|
* @param cnc_index cut and choose index (1st dimension)
|
|
* @param num_links size of the @a commit_link array
|
|
* @param[out] links array of link information to return
|
|
* @return #GNUNET_SYSERR on internal error,
|
|
* #GNUNET_NO if commitment was not found
|
|
* #GNUNET_OK on success
|
|
*/
|
|
static int
|
|
postgres_get_refresh_commit_links (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *session_hash,
|
|
uint16_t cnc_index,
|
|
uint16_t num_links,
|
|
struct TALER_RefreshCommitLinkP *links)
|
|
{
|
|
uint16_t i;
|
|
|
|
for (i=0;i<num_links;i++)
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (session_hash),
|
|
GNUNET_PQ_query_param_uint16 (&cnc_index),
|
|
GNUNET_PQ_query_param_uint16 (&i),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
PGresult *result;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->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 GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_auto_from_type ("transfer_pub",
|
|
&links[i].transfer_pub),
|
|
GNUNET_PQ_result_spec_auto_from_type ("link_secret_enc",
|
|
&links[i].shared_secret_enc),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
|
|
if (GNUNET_YES !=
|
|
GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
}
|
|
PQclear (result);
|
|
}
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Get all of the information from the given melt commit operation.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session database connection to use
|
|
* @param session_hash hash to identify refresh session
|
|
* @return NULL if the @a session_hash does not correspond to any known melt
|
|
* operation
|
|
*/
|
|
static struct TALER_EXCHANGEDB_MeltCommitment *
|
|
postgres_get_melt_commitment (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *session_hash)
|
|
{
|
|
struct TALER_EXCHANGEDB_RefreshSession rs;
|
|
struct TALER_EXCHANGEDB_MeltCommitment *mc;
|
|
uint16_t cnc_index;
|
|
unsigned int i;
|
|
|
|
if (GNUNET_OK !=
|
|
postgres_get_refresh_session (cls,
|
|
session,
|
|
session_hash,
|
|
&rs))
|
|
return NULL;
|
|
mc = GNUNET_new (struct TALER_EXCHANGEDB_MeltCommitment);
|
|
mc->num_newcoins = rs.num_newcoins;
|
|
mc->num_oldcoins = rs.num_oldcoins;
|
|
mc->melts = GNUNET_malloc (mc->num_oldcoins *
|
|
sizeof (struct TALER_EXCHANGEDB_RefreshMelt));
|
|
for (i=0;i<mc->num_oldcoins;i++)
|
|
if (GNUNET_OK !=
|
|
postgres_get_refresh_melt (cls,
|
|
session,
|
|
session_hash,
|
|
(uint16_t) i,
|
|
&mc->melts[i]))
|
|
goto cleanup;
|
|
mc->denom_pubs = GNUNET_malloc (mc->num_newcoins *
|
|
sizeof (struct TALER_DenominationPublicKey));
|
|
if (GNUNET_OK !=
|
|
postgres_get_refresh_order (cls,
|
|
session,
|
|
session_hash,
|
|
mc->num_newcoins,
|
|
mc->denom_pubs))
|
|
goto cleanup;
|
|
for (cnc_index=0;cnc_index<TALER_CNC_KAPPA;cnc_index++)
|
|
{
|
|
mc->commit_coins[cnc_index]
|
|
= GNUNET_malloc (mc->num_newcoins *
|
|
sizeof (struct TALER_EXCHANGEDB_RefreshCommitCoin));
|
|
if (GNUNET_OK !=
|
|
postgres_get_refresh_commit_coins (cls,
|
|
session,
|
|
session_hash,
|
|
cnc_index,
|
|
mc->num_newcoins,
|
|
mc->commit_coins[cnc_index]))
|
|
goto cleanup;
|
|
mc->commit_links[cnc_index]
|
|
= GNUNET_malloc (mc->num_oldcoins *
|
|
sizeof (struct TALER_RefreshCommitLinkP));
|
|
if (GNUNET_OK !=
|
|
postgres_get_refresh_commit_links (cls,
|
|
session,
|
|
session_hash,
|
|
cnc_index,
|
|
mc->num_oldcoins,
|
|
mc->commit_links[cnc_index]))
|
|
goto cleanup;
|
|
}
|
|
return mc;
|
|
|
|
cleanup:
|
|
common_free_melt_commitment (cls, mc);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/**
|
|
* Insert signature of a new coin generated during refresh into
|
|
* the database indexed by the refresh session and the index
|
|
* of the coin. This data is later used should an old coin
|
|
* be used to try to obtain the private keys during "/refresh/link".
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection
|
|
* @param session_hash hash to identify refresh session
|
|
* @param newcoin_index coin index
|
|
* @param ev_sig coin signature
|
|
* @return #GNUNET_OK on success
|
|
*/
|
|
static int
|
|
postgres_insert_refresh_out (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *session_hash,
|
|
uint16_t newcoin_index,
|
|
const struct TALER_DenominationSignature *ev_sig)
|
|
{
|
|
PGresult *result;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (session_hash),
|
|
GNUNET_PQ_query_param_uint16 (&newcoin_index),
|
|
GNUNET_PQ_query_param_rsa_signature (ev_sig->rsa_signature),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"insert_refresh_out",
|
|
params);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Obtain the link data of a coin, that is the encrypted link
|
|
* information, the denomination keys and the signatures.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection
|
|
* @param session_hash refresh session to get linkage data for
|
|
* @return all known link data for the session
|
|
*/
|
|
static struct TALER_EXCHANGEDB_LinkDataList *
|
|
postgres_get_link_data_list (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *session_hash)
|
|
{
|
|
struct TALER_EXCHANGEDB_LinkDataList *ldl;
|
|
struct TALER_EXCHANGEDB_LinkDataList *pos;
|
|
int i;
|
|
int nrows;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (session_hash),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
PGresult *result;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"get_link",
|
|
params);
|
|
|
|
ldl = NULL;
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return NULL;
|
|
}
|
|
nrows = PQntuples (result);
|
|
if (0 == nrows)
|
|
{
|
|
PQclear (result);
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 0; i < nrows; i++)
|
|
{
|
|
struct TALER_RefreshLinkEncrypted *link_enc;
|
|
struct GNUNET_CRYPTO_RsaPublicKey *denom_pub;
|
|
struct GNUNET_CRYPTO_RsaSignature *sig;
|
|
void *ld_buf;
|
|
size_t ld_buf_size;
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_variable_size ("link_vector_enc",
|
|
&ld_buf,
|
|
&ld_buf_size),
|
|
GNUNET_PQ_result_spec_rsa_signature ("ev_sig",
|
|
&sig),
|
|
GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
|
|
&denom_pub),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, i))
|
|
{
|
|
PQclear (result);
|
|
GNUNET_break (0);
|
|
common_free_link_data_list (cls,
|
|
ldl);
|
|
return NULL;
|
|
}
|
|
if (ld_buf_size < sizeof (struct GNUNET_CRYPTO_EddsaPrivateKey))
|
|
{
|
|
PQclear (result);
|
|
GNUNET_free (ld_buf);
|
|
common_free_link_data_list (cls,
|
|
ldl);
|
|
return NULL;
|
|
}
|
|
link_enc = TALER_refresh_link_encrypted_decode (ld_buf,
|
|
ld_buf_size);
|
|
GNUNET_free (ld_buf);
|
|
pos = GNUNET_new (struct TALER_EXCHANGEDB_LinkDataList);
|
|
pos->next = ldl;
|
|
pos->link_data_enc = link_enc;
|
|
pos->denom_pub.rsa_public_key = denom_pub;
|
|
pos->ev_sig.rsa_signature = sig;
|
|
ldl = pos;
|
|
}
|
|
return ldl;
|
|
}
|
|
|
|
|
|
/**
|
|
* Obtain shared secret and transfer public key from the public key of
|
|
* the coin. This information and the link information returned by
|
|
* #postgres_get_link_data_list() enable the owner of an old coin to
|
|
* determine the private keys of the new coins after the melt.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection
|
|
* @param coin_pub public key of the coin
|
|
* @param tdc function to call for each session the coin was melted into
|
|
* @param tdc_cls closure for @a tdc
|
|
* @return #GNUNET_OK on success,
|
|
* #GNUNET_NO on failure (not found)
|
|
* #GNUNET_SYSERR on internal failure (database issue)
|
|
*/
|
|
static int
|
|
postgres_get_transfer (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
TALER_EXCHANGEDB_TransferDataCallback tdc,
|
|
void *tdc_cls)
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (coin_pub),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
PGresult *result;
|
|
int nrows;
|
|
int i;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"get_transfer",
|
|
params);
|
|
if (PGRES_TUPLES_OK !=
|
|
PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
nrows = PQntuples (result);
|
|
if (0 == nrows)
|
|
{
|
|
/* no matches found */
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
for (i=0;i<nrows;i++)
|
|
{
|
|
struct GNUNET_HashCode session_hash;
|
|
struct TALER_TransferPublicKeyP transfer_pub;
|
|
struct TALER_EncryptedLinkSecretP shared_secret_enc;
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_auto_from_type ("transfer_pub", &transfer_pub),
|
|
GNUNET_PQ_result_spec_auto_from_type ("link_secret_enc", &shared_secret_enc),
|
|
GNUNET_PQ_result_spec_auto_from_type ("session_hash", &session_hash),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
PQclear (result);
|
|
GNUNET_break (0);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
tdc (tdc_cls,
|
|
&session_hash,
|
|
&transfer_pub,
|
|
&shared_secret_enc);
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Compile a list of all (historic) transactions performed
|
|
* with the given coin (/refresh/melt, /deposit and /refund operations).
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database connection
|
|
* @param coin_pub coin to investigate
|
|
* @return list of transactions, NULL if coin is fresh
|
|
*/
|
|
static struct TALER_EXCHANGEDB_TransactionList *
|
|
postgres_get_coin_transactions (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub)
|
|
{
|
|
struct TALER_EXCHANGEDB_TransactionList *head;
|
|
|
|
head = NULL;
|
|
/* check deposits */
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (&coin_pub->eddsa_pub),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
int nrows;
|
|
int i;
|
|
PGresult *result;
|
|
struct TALER_EXCHANGEDB_TransactionList *tl;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"get_deposit_with_coin_pub",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
QUERY_ERR (result);
|
|
PQclear (result);
|
|
goto cleanup;
|
|
}
|
|
nrows = PQntuples (result);
|
|
for (i = 0; i < nrows; i++)
|
|
{
|
|
struct TALER_EXCHANGEDB_Deposit *deposit;
|
|
|
|
deposit = GNUNET_new (struct TALER_EXCHANGEDB_Deposit);
|
|
{
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_uint64 ("transaction_id",
|
|
&deposit->transaction_id),
|
|
TALER_PQ_result_spec_amount ("amount_with_fee",
|
|
&deposit->amount_with_fee),
|
|
TALER_PQ_result_spec_amount ("deposit_fee",
|
|
&deposit->deposit_fee),
|
|
GNUNET_PQ_result_spec_absolute_time ("timestamp",
|
|
&deposit->timestamp),
|
|
GNUNET_PQ_result_spec_absolute_time ("refund_deadline",
|
|
&deposit->refund_deadline),
|
|
GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
|
|
&deposit->merchant_pub),
|
|
GNUNET_PQ_result_spec_auto_from_type ("h_contract",
|
|
&deposit->h_contract),
|
|
GNUNET_PQ_result_spec_auto_from_type ("h_wire",
|
|
&deposit->h_wire),
|
|
TALER_PQ_result_spec_json ("wire",
|
|
&deposit->wire),
|
|
GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
|
|
&deposit->csig),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, i))
|
|
{
|
|
GNUNET_break (0);
|
|
GNUNET_free (deposit);
|
|
PQclear (result);
|
|
goto cleanup;
|
|
}
|
|
deposit->coin.coin_pub = *coin_pub;
|
|
}
|
|
tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
|
|
tl->next = head;
|
|
tl->type = TALER_EXCHANGEDB_TT_DEPOSIT;
|
|
tl->details.deposit = deposit;
|
|
head = tl;
|
|
continue;
|
|
}
|
|
PQclear (result);
|
|
}
|
|
/* Handle refreshing */
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (&coin_pub->eddsa_pub),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
int nrows;
|
|
int i;
|
|
PGresult *result;
|
|
struct TALER_EXCHANGEDB_TransactionList *tl;
|
|
|
|
/* check if the melt records exist and get them */
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"get_refresh_melt_by_coin",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
goto cleanup;
|
|
}
|
|
nrows = PQntuples (result);
|
|
for (i=0;i<nrows;i++)
|
|
{
|
|
struct TALER_EXCHANGEDB_RefreshMelt *melt;
|
|
|
|
melt = GNUNET_new (struct TALER_EXCHANGEDB_RefreshMelt);
|
|
{
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_auto_from_type ("session_hash",
|
|
&melt->session_hash),
|
|
/* oldcoin_index not needed */
|
|
GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
|
|
&melt->coin_sig),
|
|
TALER_PQ_result_spec_amount ("amount_with_fee",
|
|
&melt->amount_with_fee),
|
|
TALER_PQ_result_spec_amount ("melt_fee",
|
|
&melt->melt_fee),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
GNUNET_break (0);
|
|
GNUNET_free (melt);
|
|
PQclear (result);
|
|
goto cleanup;
|
|
}
|
|
melt->coin.coin_pub = *coin_pub;
|
|
}
|
|
tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
|
|
tl->next = head;
|
|
tl->type = TALER_EXCHANGEDB_TT_REFRESH_MELT;
|
|
tl->details.melt = melt;
|
|
head = tl;
|
|
continue;
|
|
}
|
|
PQclear (result);
|
|
}
|
|
/* handle refunds */
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (&coin_pub->eddsa_pub),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
int nrows;
|
|
int i;
|
|
PGresult *result;
|
|
struct TALER_EXCHANGEDB_TransactionList *tl;
|
|
|
|
/* check if a refund records exist and get them */
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"get_refunds_by_coin",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
goto cleanup;
|
|
}
|
|
nrows = PQntuples (result);
|
|
for (i=0;i<nrows;i++)
|
|
{
|
|
struct TALER_EXCHANGEDB_Refund *refund;
|
|
|
|
refund = GNUNET_new (struct TALER_EXCHANGEDB_Refund);
|
|
{
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
|
|
&refund->merchant_pub),
|
|
GNUNET_PQ_result_spec_auto_from_type ("merchant_sig",
|
|
&refund->merchant_sig),
|
|
GNUNET_PQ_result_spec_auto_from_type ("h_contract",
|
|
&refund->h_contract),
|
|
GNUNET_PQ_result_spec_uint64 ("transaction_id",
|
|
&refund->transaction_id),
|
|
GNUNET_PQ_result_spec_uint64 ("rtransaction_id",
|
|
&refund->rtransaction_id),
|
|
TALER_PQ_result_spec_amount ("amount_with_fee",
|
|
&refund->refund_amount),
|
|
TALER_PQ_result_spec_amount ("refund_fee",
|
|
&refund->refund_fee),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
GNUNET_break (0);
|
|
GNUNET_free (refund);
|
|
PQclear (result);
|
|
goto cleanup;
|
|
}
|
|
refund->coin.coin_pub = *coin_pub;
|
|
}
|
|
tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
|
|
tl->next = head;
|
|
tl->type = TALER_EXCHANGEDB_TT_REFUND;
|
|
tl->details.refund = refund;
|
|
head = tl;
|
|
continue;
|
|
}
|
|
PQclear (result);
|
|
}
|
|
return head;
|
|
cleanup:
|
|
if (NULL != head)
|
|
common_free_coin_transaction_list (cls,
|
|
head);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/**
|
|
* Lookup the list of Taler transactions that were aggregated
|
|
* into a wire transfer by the respective @a wtid.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param wtid the raw wire transfer identifier we used
|
|
* @param cb function to call on each transaction found
|
|
* @param cb_cls closure for @a cb
|
|
* @return #GNUNET_OK on success, #GNUNET_SYSERR on database errors,
|
|
* #GNUNET_NO if we found no results
|
|
*/
|
|
static int
|
|
postgres_lookup_wire_transfer (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_WireTransferIdentifierRawP *wtid,
|
|
TALER_EXCHANGEDB_WireTransferDataCallback cb,
|
|
void *cb_cls)
|
|
{
|
|
PGresult *result;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (wtid),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
int nrows;
|
|
int i;
|
|
|
|
/* check if the melt record exists and get it */
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"lookup_transactions",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
nrows = PQntuples (result);
|
|
if (0 == nrows)
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
|
|
"lookup_wire_transfer() returned 0 matching rows\n");
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
for (i=0;i<nrows;i++)
|
|
{
|
|
struct GNUNET_HashCode h_contract;
|
|
struct GNUNET_HashCode h_wire;
|
|
struct TALER_CoinSpendPublicKeyP coin_pub;
|
|
struct TALER_MerchantPublicKeyP merchant_pub;
|
|
uint64_t transaction_id;
|
|
struct GNUNET_TIME_Absolute exec_time;
|
|
struct TALER_Amount coin_amount;
|
|
struct TALER_Amount coin_fee;
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_auto_from_type ("h_contract", &h_contract),
|
|
GNUNET_PQ_result_spec_auto_from_type ("h_wire", &h_wire),
|
|
GNUNET_PQ_result_spec_auto_from_type ("coin_pub", &coin_pub),
|
|
GNUNET_PQ_result_spec_auto_from_type ("merchant_pub", &merchant_pub),
|
|
GNUNET_PQ_result_spec_uint64 ("transaction_id", &transaction_id),
|
|
GNUNET_PQ_result_spec_absolute_time ("execution_time", &exec_time),
|
|
TALER_PQ_result_spec_amount ("coin_amount", &coin_amount),
|
|
TALER_PQ_result_spec_amount ("coin_fee", &coin_fee),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
if (GNUNET_OK != GNUNET_PQ_extract_result (result, rs, i))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
cb (cb_cls,
|
|
&merchant_pub,
|
|
&h_wire,
|
|
&h_contract,
|
|
transaction_id,
|
|
&coin_pub,
|
|
&coin_amount,
|
|
&coin_fee);
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Try to find the wire transfer details for a deposit operation.
|
|
* If we did not execute the deposit yet, return when it is supposed
|
|
* to be executed.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param h_contract hash of the contract
|
|
* @param h_wire hash of merchant wire details
|
|
* @param coin_pub public key of deposited coin
|
|
* @param merchant_pub merchant public key
|
|
* @param transaction_id transaction identifier
|
|
* @param cb function to call with the result
|
|
* @param cb_cls closure to pass to @a cb
|
|
* @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors,
|
|
* #GNUNET_NO if nothing was found
|
|
*/
|
|
static int
|
|
postgres_wire_lookup_deposit_wtid (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *h_contract,
|
|
const struct GNUNET_HashCode *h_wire,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
const struct TALER_MerchantPublicKeyP *merchant_pub,
|
|
uint64_t transaction_id,
|
|
TALER_EXCHANGEDB_DepositWtidCallback cb,
|
|
void *cb_cls)
|
|
{
|
|
PGresult *result;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (coin_pub),
|
|
GNUNET_PQ_query_param_auto_from_type (h_contract),
|
|
GNUNET_PQ_query_param_auto_from_type (h_wire),
|
|
GNUNET_PQ_query_param_uint64 (&transaction_id),
|
|
GNUNET_PQ_query_param_auto_from_type (merchant_pub),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
int nrows;
|
|
|
|
/* check if the melt record exists and get it */
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"lookup_deposit_wtid",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
nrows = PQntuples (result);
|
|
if (0 == nrows)
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
|
|
"lookup_deposit_wtid returned 0 matching rows\n");
|
|
PQclear (result);
|
|
|
|
/* Check if transaction exists in deposits, so that we just
|
|
do not have a WTID yet, if so, do call the CB with a NULL wtid
|
|
and return GNUNET_YES! */
|
|
{
|
|
struct GNUNET_PQ_QueryParam params2[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (coin_pub),
|
|
GNUNET_PQ_query_param_uint64 (&transaction_id),
|
|
GNUNET_PQ_query_param_auto_from_type (merchant_pub),
|
|
GNUNET_PQ_query_param_auto_from_type (h_contract),
|
|
GNUNET_PQ_query_param_auto_from_type (h_wire),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"get_deposit_for_wtid",
|
|
params2);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
}
|
|
nrows = PQntuples (result);
|
|
if (0 == nrows)
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
|
|
"get_deposit_for_wtid returned 0 matching rows\n");
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
|
|
/* Ok, we're aware of the transaction, but it has not yet been
|
|
executed */
|
|
{
|
|
struct GNUNET_TIME_Absolute exec_time;
|
|
struct TALER_Amount coin_amount;
|
|
struct TALER_Amount coin_fee;
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
TALER_PQ_result_spec_amount ("amount_with_fee", &coin_amount),
|
|
TALER_PQ_result_spec_amount ("deposit_fee", &coin_fee),
|
|
GNUNET_PQ_result_spec_absolute_time ("wire_deadline", &exec_time),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
|
|
if (GNUNET_OK != GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
cb (cb_cls,
|
|
NULL,
|
|
&coin_amount,
|
|
&coin_fee,
|
|
exec_time);
|
|
PQclear (result);
|
|
return GNUNET_YES;
|
|
}
|
|
}
|
|
if (1 != nrows)
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
{
|
|
struct TALER_WireTransferIdentifierRawP wtid;
|
|
struct GNUNET_TIME_Absolute exec_time;
|
|
struct TALER_Amount coin_amount;
|
|
struct TALER_Amount coin_fee;
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_auto_from_type ("wtid_raw", &wtid),
|
|
GNUNET_PQ_result_spec_absolute_time ("execution_time", &exec_time),
|
|
TALER_PQ_result_spec_amount ("coin_amount", &coin_amount),
|
|
TALER_PQ_result_spec_amount ("coin_fee", &coin_fee),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
if (GNUNET_OK != GNUNET_PQ_extract_result (result, rs, 0))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
cb (cb_cls,
|
|
&wtid,
|
|
&coin_amount,
|
|
&coin_fee,
|
|
exec_time);
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Function called to insert aggregation information into the DB.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param wtid the raw wire transfer identifier we used
|
|
* @param merchant_pub public key of the merchant (should be same for all callbacks with the same @e cls)
|
|
* @param h_wire hash of wire transfer details of the merchant (should be same for all callbacks with the same @e cls)
|
|
* @param h_contract which contract was this payment about
|
|
* @param transaction_id merchant's transaction ID for the payment
|
|
* @param coin_pub which public key was this payment about
|
|
* @param coin_value amount contributed by this coin in total
|
|
* @param coin_fee deposit fee charged by exchange for this coin
|
|
* @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
|
|
*/
|
|
static int
|
|
postgres_insert_aggregation_tracking (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_WireTransferIdentifierRawP *wtid,
|
|
const struct TALER_MerchantPublicKeyP *merchant_pub,
|
|
const struct GNUNET_HashCode *h_wire,
|
|
const struct GNUNET_HashCode *h_contract,
|
|
uint64_t transaction_id,
|
|
struct GNUNET_TIME_Absolute execution_time,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
const struct TALER_Amount *coin_value,
|
|
const struct TALER_Amount *coin_fee)
|
|
{
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (h_contract),
|
|
GNUNET_PQ_query_param_auto_from_type (h_wire),
|
|
GNUNET_PQ_query_param_auto_from_type (coin_pub),
|
|
GNUNET_PQ_query_param_auto_from_type (merchant_pub),
|
|
GNUNET_PQ_query_param_uint64 (&transaction_id),
|
|
GNUNET_PQ_query_param_auto_from_type (wtid),
|
|
GNUNET_PQ_query_param_absolute_time (&execution_time),
|
|
TALER_PQ_query_param_amount (coin_value),
|
|
TALER_PQ_query_param_amount (coin_fee),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
PGresult *result;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"insert_aggregation_tracking",
|
|
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);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Function called to insert wire transfer commit data into the DB.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param type type of the wire transfer (i.e. "sepa")
|
|
* @param buf buffer with wire transfer preparation data
|
|
* @param buf_size number of bytes in @a buf
|
|
* @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
|
|
*/
|
|
static int
|
|
postgres_wire_prepare_data_insert (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const char *type,
|
|
const char *buf,
|
|
size_t buf_size)
|
|
{
|
|
PGresult *result;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_string (type),
|
|
GNUNET_PQ_query_param_fixed_size (buf, buf_size),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"wire_prepare_data_insert",
|
|
params);
|
|
if (PGRES_COMMAND_OK != PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Function called to mark wire transfer commit data as finished.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param rowid which entry to mark as finished
|
|
* @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
|
|
*/
|
|
static int
|
|
postgres_wire_prepare_data_mark_finished (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
unsigned long long rowid)
|
|
{
|
|
uint64_t serial_id = rowid;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_uint64 (&serial_id),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
PGresult *result;
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"wire_prepare_data_mark_done",
|
|
params);
|
|
if (PGRES_COMMAND_OK !=
|
|
PQresultStatus (result))
|
|
{
|
|
BREAK_DB_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Function called to get an unfinished wire transfer
|
|
* preparation data. Fetches at most one item.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param cb function to call for ONE unfinished item
|
|
* @param cb_cls closure for @a cb
|
|
* @return #GNUNET_OK on success,
|
|
* #GNUNET_NO if there are no entries,
|
|
* #GNUNET_SYSERR on DB errors
|
|
*/
|
|
static int
|
|
postgres_wire_prepare_data_get (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
TALER_EXCHANGEDB_WirePreparationCallback cb,
|
|
void *cb_cls)
|
|
{
|
|
PGresult *result;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
|
|
result = GNUNET_PQ_exec_prepared (session->conn,
|
|
"wire_prepare_data_get",
|
|
params);
|
|
if (PGRES_TUPLES_OK != PQresultStatus (result))
|
|
{
|
|
QUERY_ERR (result);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
if (0 == PQntuples (result))
|
|
{
|
|
PQclear (result);
|
|
return GNUNET_NO;
|
|
}
|
|
if (1 != PQntuples (result))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
|
|
{
|
|
uint64_t serial_id;
|
|
char *type;
|
|
void *buf = NULL;
|
|
size_t buf_size;
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_uint64 ("serial_id",
|
|
&serial_id),
|
|
GNUNET_PQ_result_spec_string ("type",
|
|
&type),
|
|
GNUNET_PQ_result_spec_variable_size ("buf",
|
|
&buf,
|
|
&buf_size),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result,
|
|
rs,
|
|
0))
|
|
{
|
|
GNUNET_break (0);
|
|
PQclear (result);
|
|
return GNUNET_SYSERR;
|
|
}
|
|
cb (cb_cls,
|
|
serial_id,
|
|
type,
|
|
buf,
|
|
buf_size);
|
|
GNUNET_PQ_cleanup_result (rs);
|
|
}
|
|
PQclear (result);
|
|
return GNUNET_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Initialize Postgres database subsystem.
|
|
*
|
|
* @param cls a configuration instance
|
|
* @return NULL on error, otherwise a `struct TALER_EXCHANGEDB_Plugin`
|
|
*/
|
|
void *
|
|
libtaler_plugin_exchangedb_postgres_init (void *cls)
|
|
{
|
|
struct GNUNET_CONFIGURATION_Handle *cfg = cls;
|
|
struct PostgresClosure *pg;
|
|
struct TALER_EXCHANGEDB_Plugin *plugin;
|
|
|
|
pg = GNUNET_new (struct PostgresClosure);
|
|
|
|
if (0 != pthread_key_create (&pg->db_conn_threadlocal,
|
|
&db_conn_destroy))
|
|
{
|
|
TALER_LOG_ERROR ("Cannnot create pthread key.\n");
|
|
GNUNET_free (pg);
|
|
return NULL;
|
|
}
|
|
if (GNUNET_OK !=
|
|
GNUNET_CONFIGURATION_get_value_string (cfg,
|
|
"exchangedb-postgres",
|
|
"db_conn_str",
|
|
&pg->connection_cfg_str))
|
|
{
|
|
GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
|
|
"exchangedb-postgres",
|
|
"db_conn_str");
|
|
GNUNET_free (pg);
|
|
return NULL;
|
|
}
|
|
plugin = GNUNET_new (struct TALER_EXCHANGEDB_Plugin);
|
|
plugin->cls = pg;
|
|
plugin->get_session = &postgres_get_session;
|
|
plugin->drop_tables = &postgres_drop_tables;
|
|
plugin->create_tables = &postgres_create_tables;
|
|
plugin->start = &postgres_start;
|
|
plugin->commit = &postgres_commit;
|
|
plugin->rollback = &postgres_rollback;
|
|
plugin->insert_denomination_info = &postgres_insert_denomination_info;
|
|
plugin->get_denomination_info = &postgres_get_denomination_info;
|
|
plugin->reserve_get = &postgres_reserve_get;
|
|
plugin->reserves_in_insert = &postgres_reserves_in_insert;
|
|
plugin->get_withdraw_info = &postgres_get_withdraw_info;
|
|
plugin->insert_withdraw_info = &postgres_insert_withdraw_info;
|
|
plugin->get_reserve_history = &postgres_get_reserve_history;
|
|
plugin->free_reserve_history = &common_free_reserve_history;
|
|
plugin->have_deposit = &postgres_have_deposit;
|
|
plugin->mark_deposit_tiny = &postgres_mark_deposit_tiny;
|
|
plugin->test_deposit_done = &postgres_test_deposit_done;
|
|
plugin->mark_deposit_done = &postgres_mark_deposit_done;
|
|
plugin->get_ready_deposit = &postgres_get_ready_deposit;
|
|
plugin->iterate_matching_deposits = &postgres_iterate_matching_deposits;
|
|
plugin->insert_deposit = &postgres_insert_deposit;
|
|
plugin->insert_refund = &postgres_insert_refund;
|
|
plugin->get_refresh_session = &postgres_get_refresh_session;
|
|
plugin->create_refresh_session = &postgres_create_refresh_session;
|
|
plugin->insert_refresh_melt = &postgres_insert_refresh_melt;
|
|
plugin->get_refresh_melt = &postgres_get_refresh_melt;
|
|
plugin->insert_refresh_order = &postgres_insert_refresh_order;
|
|
plugin->get_refresh_order = &postgres_get_refresh_order;
|
|
plugin->insert_refresh_commit_coins = &postgres_insert_refresh_commit_coins;
|
|
plugin->get_refresh_commit_coins = &postgres_get_refresh_commit_coins;
|
|
plugin->insert_refresh_commit_links = &postgres_insert_refresh_commit_links;
|
|
plugin->get_refresh_commit_links = &postgres_get_refresh_commit_links;
|
|
plugin->get_melt_commitment = &postgres_get_melt_commitment;
|
|
plugin->free_melt_commitment = &common_free_melt_commitment;
|
|
plugin->insert_refresh_out = &postgres_insert_refresh_out;
|
|
plugin->get_link_data_list = &postgres_get_link_data_list;
|
|
plugin->free_link_data_list = &common_free_link_data_list;
|
|
plugin->get_transfer = &postgres_get_transfer;
|
|
plugin->get_coin_transactions = &postgres_get_coin_transactions;
|
|
plugin->free_coin_transaction_list = &common_free_coin_transaction_list;
|
|
plugin->lookup_wire_transfer = &postgres_lookup_wire_transfer;
|
|
plugin->wire_lookup_deposit_wtid = &postgres_wire_lookup_deposit_wtid;
|
|
plugin->insert_aggregation_tracking = &postgres_insert_aggregation_tracking;
|
|
plugin->wire_prepare_data_insert = &postgres_wire_prepare_data_insert;
|
|
plugin->wire_prepare_data_mark_finished = &postgres_wire_prepare_data_mark_finished;
|
|
plugin->wire_prepare_data_get = &postgres_wire_prepare_data_get;
|
|
return plugin;
|
|
}
|
|
|
|
|
|
/**
|
|
* Shutdown Postgres database subsystem.
|
|
*
|
|
* @param cls a `struct TALER_EXCHANGEDB_Plugin`
|
|
* @return NULL (always)
|
|
*/
|
|
void *
|
|
libtaler_plugin_exchangedb_postgres_done (void *cls)
|
|
{
|
|
struct TALER_EXCHANGEDB_Plugin *plugin = cls;
|
|
struct PostgresClosure *pg = plugin->cls;
|
|
|
|
GNUNET_free (pg->connection_cfg_str);
|
|
GNUNET_free (pg);
|
|
GNUNET_free (plugin);
|
|
return NULL;
|
|
}
|
|
|
|
/* end of plugin_exchangedb_postgres.c */
|