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implement postgres_get_denomination_info (#3808)

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This commit is contained in:
Christian Grothoff 2015-06-12 10:28:17 +02:00
parent 548e19e9fd
commit 3724e3d166
2 changed files with 147 additions and 30 deletions
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29
src/include/taler_mintdb_plugin.h
View File

@ -667,14 +667,9 @@ struct TALER_MINTDB_Plugin
/**
* Insert a denomination key.
*
* FIXME: Note that the main mint currently does NOT use this API at
* all. Furthermore, the function to retrieve denomination keys
* from the DB is still missing. The main mint should check if its
* denomination keys are in the DB, and if not, insert them (when it
* loads them). The auditor will (presumably) need the denomination
* key information to audit the DB. (#3808).
* Insert information about a denomination key and in particular
* the properties (value, fees, expiration times) the coins signed
* with this key have.
*
* @param cls the @e cls of this struct with the plugin-specific state
* @param sesssion connection to use
@ -683,12 +678,28 @@ struct TALER_MINTDB_Plugin
* @return #GNUNET_OK on success; #GNUNET_SYSERR on failure
*/
int
(*insert_denomination) (void *cls,
(*insert_denomination_info) (void *cls,
struct TALER_MINTDB_Session *session,
const struct TALER_DenominationPublicKey *denom_pub,
const struct TALER_DenominationKeyValidityPS *issue);
/**
* Fetch information about a denomination key.
*
* @param cls the @e cls of this struct with the plugin-specific state
* @param sesssion 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
* @return #GNUNET_OK on success; #GNUNET_NO if no record was found, #GNUNET_SYSERR on failure
*/
int
(*get_denomination_info) (void *cls,
struct TALER_MINTDB_Session *session,
const struct TALER_DenominationPublicKey *denom_pub,
struct TALER_DenominationKeyValidityPS *issue);
/**
* Get the summary of a reserve.
*

128
src/mintdb/plugin_mintdb_postgres.c
View File

@ -438,8 +438,8 @@ postgres_prepare (PGconn *db_conn)
PQclear (result); result = NULL; \
} while (0);
/* Used in #postgres_insert_denomination() */
PREPARE ("insert_denomination",
/* Used in #postgres_insert_denomination_info() */
PREPARE ("denomination_insert",
"INSERT INTO denominations "
"(pub"
",master_pub"
@ -465,7 +465,29 @@ postgres_prepare (PGconn *db_conn)
" $11, $12, $13, $14, $15, $16, $17, $18, $19);",
19, NULL);
/* FIXME: #3808: need a 'select_denominations' for auditor */
/* Used in #postgres_get_denomination_info() */
PREPARE ("denomination_get",
"SELECT FROM denominations"
" master_pub"
",master_sig"
",valid_from"
",expire_withdraw"
",expire_spend"
",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 */
" WHERE pub=$1;",
1, NULL);
/* Used in #postgres_reserve_get() */
PREPARE ("reserve_get",
@ -1027,7 +1049,7 @@ postgres_commit (void *cls,
* @return #GNUNET_OK on success; #GNUNET_SYSERR on failure
*/
static int
postgres_insert_denomination (void *cls,
postgres_insert_denomination_info (void *cls,
struct TALER_MINTDB_Session *session,
const struct TALER_DenominationPublicKey *denom_pub,
const struct TALER_DenominationKeyValidityPS *issue)
@ -1061,7 +1083,7 @@ postgres_insert_denomination (void *cls,
&issue->fee_refresh));
result = TALER_PQ_exec_prepared (session->conn,
"insert_denomination",
"denomination_insert",
params);
if (PGRES_COMMAND_OK != PQresultStatus (result))
{
@ -1077,6 +1099,86 @@ postgres_insert_denomination (void *cls,
}
/**
* Fetch information about a denomination key.
*
* @param cls the @e cls of this struct with the plugin-specific state
* @param sesssion 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
* @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_MINTDB_Session *session,
const struct TALER_DenominationPublicKey *denom_pub,
struct TALER_DenominationKeyValidityPS *issue)
{
PGresult *result;
struct TALER_PQ_QueryParam params[] = {
TALER_PQ_query_param_rsa_public_key (denom_pub->rsa_public_key),
TALER_PQ_query_param_end
};
result = TALER_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;
}
if (1 != PQntuples (result))
{
GNUNET_break (0);
PQclear (result);
return GNUNET_SYSERR;
}
{
struct TALER_PQ_ResultSpec rs[] = {
TALER_PQ_result_spec_auto_from_type ("master_pub",
&issue->master),
TALER_PQ_result_spec_auto_from_type ("master_sig",
&issue->signature),
TALER_PQ_result_spec_auto_from_type ("valid_from",
&issue->start.abs_value_us__),
TALER_PQ_result_spec_auto_from_type ("expire_withdraw",
&issue->expire_withdraw.abs_value_us__),
TALER_PQ_result_spec_auto_from_type ("expire_spend",
&issue->expire_spend.abs_value_us__),
TALER_PQ_result_spec_auto_from_type ("expire_legal",
&issue->expire_legal.abs_value_us__),
TALER_PQ_result_spec_amount_nbo ("coin",
&issue->value),
TALER_PQ_result_spec_amount_nbo ("fee_withdraw",
&issue->fee_withdraw),
TALER_PQ_result_spec_amount_nbo ("fee_deposit",
&issue->fee_deposit),
TALER_PQ_result_spec_amount_nbo ("fee_refresh",
&issue->fee_refresh),
TALER_PQ_result_spec_end
};
EXITIF (GNUNET_OK !=
TALER_PQ_extract_result (result,
rs,
0));
}
PQclear (result);
return GNUNET_OK;
EXITIF_exit:
PQclear (result);
return GNUNET_SYSERR;
}
/**
* Get the summary of a reserve.
*
@ -1097,11 +1199,6 @@ postgres_reserve_get (void *cls,
TALER_PQ_query_param_auto_from_type(&reserve->pub),
TALER_PQ_query_param_end
};
struct TALER_PQ_ResultSpec rs[] = {
TALER_PQ_result_spec_amount("current_balance", &reserve->balance),
TALER_PQ_result_spec_absolute_time("expiration_date", &reserve->expiry),
TALER_PQ_result_spec_end
};
result = TALER_PQ_exec_prepared (session->conn,
"reserve_get",
@ -1117,10 +1214,18 @@ postgres_reserve_get (void *cls,
PQclear (result);
return GNUNET_NO;
}
{
struct TALER_PQ_ResultSpec rs[] = {
TALER_PQ_result_spec_amount("current_balance", &reserve->balance),
TALER_PQ_result_spec_absolute_time("expiration_date", &reserve->expiry),
TALER_PQ_result_spec_end
};
EXITIF (GNUNET_OK !=
TALER_PQ_extract_result (result,
rs,
0));
}
PQclear (result);
return GNUNET_OK;
@ -3047,7 +3152,8 @@ 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->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;