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mintdb postgres: implement insert_denomination

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This commit is contained in:
Sree Harsha Totakura 2015-04-12 16:38:03 +02:00
parent 4f18e6d585
commit bd32fb23d8
1 changed files with 97 additions and 3 deletions
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100
src/mintdb/plugin_mintdb_postgres.c
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@ -63,9 +63,8 @@
} while (0)
/**
* This the length of the currency strings (without 0-termination) we use. Note
* that we need to use this at the DB layer instead of TALER_CURRENCY_LEN as the
* DB only needs to store 3 bytes instead of 8 bytes.
* This the length of the currency strings (without 0-termination) we use.
* FIXME: #3768: we should eventually store 12 bytes here
*/
#define TALER_PQ_CURRENCY_LEN 3
@ -178,6 +177,23 @@ postgres_create_tables (void *cls,
return GNUNET_SYSERR;
}
#define SQLEXEC(sql) SQLEXEC_(conn, sql, result);
/* Denomination table for holding the publicly available information of
denominations keys */
SQLEXEC ("CREATE TABLE IF NOT EXISTS denominations"
"("
" pub BYTEA PRIMARY KEY"
",valid_from INT8 NOT NULL"
",expire_withdraw INT8 NOT NULL"
",expire_spend INT8 NOT NULL"
",expire_legal INT8 NOT NULL"
",value INT8 NOT NULL" /* value of this denom */
",fraction INT4 NOT NULL" /* fractional value of this denom */
",currency VARCHAR(4) NOT NULL" /* assuming same currency for fees */
",fee_withdraw_value INT8 NOT NULL"
",fee_withdraw_fraction INT4 NOT NULL"
",fee_refresh_value INT8 NOT NULL"
",fee_refresh_fraction INT4 NOT NULL"
")");
/* reserves table is for summarization of a reserve. It is updated when new
funds are added and existing funds are withdrawn */
SQLEXEC ("CREATE TABLE IF NOT EXISTS reserves"
@ -331,6 +347,24 @@ postgres_prepare (PGconn *db_conn)
PQclear (result); result = NULL; \
} while (0);
PREPARE ("insert_denomination",
"INSERT INTO denominations ("
" pub"
",valid_from"
",expire_withdraw"
",expire_spend"
",expire_legal"
",value" /* value of this denom */
",fraction" /* fractional value of this denom */
",currency" /* assuming same currency for fees */
",fee_withdraw_value"
",fee_withdraw_fraction"
",fee_refresh_value"
",fee_refresh_fraction"
") VALUES "
"($1, $2, $3, $4, $5, $6,"
"$7, $8, $9, $10, $11, $12);",
12, NULL);
PREPARE ("get_reserve",
"SELECT "
"current_balance_value"
@ -743,6 +777,65 @@ postgres_commit (void *cls,
}
/**
* Insert a denomination key
*
* @param cls the @e cls of this struct with the plugin-specific state
* @param sesssion connection to use
* @param dki the denomination key information
* @return #GNUNET_OK on success; #GNUNET_SYSERR on failure
*/
static int
postgres_insert_denomination (void *cls,
struct TALER_MINTDB_Session *session,
const struct TALER_MINTDB_DenominationKeyIssueInformation *dki)
{
PGresult *result;
char *pub_enc;
const struct TALER_DenominationKeyValidityPS *issue;
size_t pub_enc_size;
int ret;
ret = GNUNET_SYSERR;
pub_enc = NULL;
issue = &dki->issue;
pub_enc_size = GNUNET_CRYPTO_rsa_public_key_encode (dki->denom_pub.rsa_public_key,
&pub_enc);
if (NULL == pub_enc)
{
GNUNET_break (0);
return GNUNET_SYSERR;
}
struct TALER_PQ_QueryParam params[] = {
TALER_PQ_QUERY_PARAM_PTR_SIZED (pub_enc, pub_enc_size - 1),
TALER_PQ_QUERY_PARAM_PTR (&issue->start.abs_value_us__),
TALER_PQ_QUERY_PARAM_PTR (&issue->expire_withdraw.abs_value_us__),
TALER_PQ_QUERY_PARAM_PTR (&issue->expire_spend.abs_value_us__),
TALER_PQ_QUERY_PARAM_PTR (&issue->expire_legal.abs_value_us__),
TALER_PQ_QUERY_PARAM_PTR (&issue->value.value),
TALER_PQ_QUERY_PARAM_PTR (&issue->value.fraction),
TALER_PQ_QUERY_PARAM_PTR_SIZED (issue->value.currency, TALER_PQ_CURRENCY_LEN),
TALER_PQ_QUERY_PARAM_PTR (&issue->fee_withdraw.value),
TALER_PQ_QUERY_PARAM_PTR (&issue->fee_withdraw.fraction),
TALER_PQ_QUERY_PARAM_PTR (&issue->fee_refresh.value),
TALER_PQ_QUERY_PARAM_PTR (&issue->fee_refresh.fraction),
TALER_PQ_QUERY_PARAM_END
};
result = TALER_PQ_exec_prepared (session->conn,
"insert_denomination",
params);
GNUNET_free (pub_enc);
if (PGRES_COMMAND_OK != PQresultStatus (result))
{
BREAK_DB_ERR (result);
}
else
ret = GNUNET_OK;
PQclear (result);
return ret;
}
/**
* Get the summary of a reserve.
*
@ -2353,6 +2446,7 @@ libtaler_plugin_mintdb_postgres_init (void *cls)
plugin->start = &postgres_start;
plugin->commit = &postgres_commit;
plugin->rollback = &postgres_rollback;
plugin->insert_denomination = &postgres_insert_denomination;
plugin->reserve_get = &postgres_reserve_get;
plugin->reserves_in_insert = &postgres_reserves_in_insert;
plugin->get_collectable_blindcoin = &postgres_get_collectable_blindcoin;