diff options
Diffstat (limited to 'src/include/taler_merchantdb_lib.h')
| -rw-r--r-- | src/include/taler_merchantdb_lib.h | 172 |
1 files changed, 13 insertions, 159 deletions
diff --git a/src/include/taler_merchantdb_lib.h b/src/include/taler_merchantdb_lib.h index fe5adffc..f64a9bfa 100644 --- a/src/include/taler_merchantdb_lib.h +++ b/src/include/taler_merchantdb_lib.h @@ -19,182 +19,36 @@ * @brief database helper functions used by the merchant backend * @author Sree Harsha Totakura <sreeharsha@totakura.in> */ +#ifndef TALER_MERCHANTDB_LIB_H +#define TALER_MERCHANTDB_LIB_H -#ifndef MERCHANT_DB_H -#define MERCHANT_DB_H - -#include <gnunet/gnunet_postgres_lib.h> #include <taler/taler_util.h> +#include "taler_merchantdb_plugin.h" - - -/* Set of values that represent a contract. To be expanded on an - as-needed basis */ -struct TALER_MERCHANTDB_ContractHandle -{ - /* The nounce used when hashing the wire details - for this contract */ - uint64_t nounce; - - /* The maximum time when the merchant expects the money tranfer - to his bank account to happen */ - struct GNUNET_TIME_Absolute edate; - - /* The time when this contract was generated */ - struct GNUNET_TIME_Absolute timestamp; - - /* The maximum time until which the merchant could issue a - refund to the customer */ - struct GNUNET_TIME_Absolute refund_deadline; - - /* The identification number for this contract */ - uint64_t contract_id; - -}; +/** + * Handle to interact with the database. + */ +struct TALER_MERCHANTDB_Plugin; /** * Connect to postgresql database * * @param cfg the configuration handle - * @return connection to the postgresql database; NULL upon error + * @return connection to the database; NULL upon error */ -PGconn * -TALER_MERCHANTDB_connect (const struct GNUNET_CONFIGURATION_Handle *cfg); +struct TALER_MERCHANTDB_Plugin * +TALER_MERCHANTDB_plugin_load (const struct GNUNET_CONFIGURATION_Handle *cfg); /** * Disconnect from the database * - * @param conn database handle to close + * @param dbh database handle to close */ void -TALER_MERCHANTDB_disconnect (PGconn *conn); - - -/** - * Initialize merchant tables - * - * @param conn the connection handle to postgres db. - * @param tmp GNUNET_YES if the tables are to be made temporary i.e. their - * contents are dropped when the @a conn is closed - * @return GNUNET_OK upon success; GNUNET_SYSERR upon failure - */ -int -TALER_MERCHANTDB_initialize (PGconn *conn, int tmp); - - -/** - * Inserts a contract record into the database and if successfull returns the - * serial number of the inserted row. - * - * @param conn the database connection - * @param timestamp the timestamp of this contract - * @param expiry the time when the contract will expire - * @param edate when the merchant wants to receive the wire transfer corresponding - * to this deal (this value is also a field inside the 'wire' JSON format) - * @param refund deadline until which the merchant can return the paid amount - * @param amount the taler amount corresponding to the contract - * @param hash of the stringified JSON corresponding to this contract - * @param c_id contract's id - * @param desc descripition of the contract - * @param nounce a random 64-bit nounce - * @param product description to identify a product - * @return #GNUNET_OK on success, #GNUNET_SYSERR upon error - */ -uint32_t -TALER_MERCHANTDB_contract_create (PGconn *conn, - const struct GNUNET_TIME_Absolute timestamp, - const struct GNUNET_TIME_Absolute expiry, - struct GNUNET_TIME_Absolute edate, - struct GNUNET_TIME_Absolute refund, - const struct TALER_Amount *amount, - const struct GNUNET_HashCode *h_contract, - uint64_t c_id, - const char *desc, - uint64_t nounce, - uint64_t product); +TALER_MERCHANTDB_plugin_unload (struct TALER_MERCHANTDB_Plugin *dbh); -long long -TALER_MERCHANTDB_contract_get_product (PGconn *conn, - uint64_t contract_id); - - -/** - * Update the pending column of a deposit permission - * - * @param conn handle to DB - * @param transaction_id identification number of the deposit to - * update - * @param pending true if still pending, false otherwise (i.e. the - * mint did respond something) - * @return #GNUNET_OK if successful, #GNUNET_SYSERR upon errors - */ -uint32_t -TALER_MERCHANTDB_deposit_permission_update (PGconn *conn, - uint64_t transaction_id, - unsigned int pending); - -unsigned int -TALER_MERCHANTDB_checkout_create (PGconn *conn, - struct GNUNET_CRYPTO_rsa_PublicKey *coin_pub, - uint64_t transaction_id, - struct TALER_Amount *amount, - struct GNUNET_CRYPTO_rsa_Signature *coin_sig); - - -long long -TALER_MERCHANTDB_checkout_get_product (PGconn *conn, - struct GNUNET_CRYPTO_rsa_PublicKey *coin_pub); - -/** - * The query gets a contract's nounce and edate used to reproduce - * a 'wire' JSON object. This function is also useful to check whether - * a claimed contract existed or not. - * - * @param conn handle to the DB - * @param h_contract the parameter for the row to match against - * @param nounce where to store the found nounce - * @param edate where to store the found expiration date - * @return #GNUNET_OK on success, #GNUNET_SYSERR upon errors - */ -uint32_t -TALER_MERCHANTDB_contract_get_values (PGconn *conn, - const struct GNUNET_HashCode *h_contract, - uint64_t *nounce, - struct GNUNET_TIME_Absolute *edate); - #endif /* MERCHANT_DB_H */ -/** - * Get a set of values representing a contract. This function is meant - * to obsolete the '_get_contract_values' version. - * - * @param h_contract the hashcode of this contract - * @param contract_handle where to store the results - * @raturn #GNUNET_OK in case of success, #GNUNET_SYSERR - * upon errors - */ -uint32_t -TALER_MERCHANTDB_contract_get_handle (PGconn *conn, - const struct GNUNET_HashCode *h_contract, - struct TALER_MERCHANTDB_ContractHandle *contract_handle); - -/** - * Store a deposit permission in DB. To be mainly used if /deposit should - * be retried; also, the merchant can benefit from this information in case - * he needs to later investigate about some transaction_id. - * @param conn DB handle - * @param transaction_id identification number of this payment (which is the - * same id of the related contract) - * @param pending if true, this payment got to a persistent state - * @param which mint is to get this deposit permission - * @return #GNUNET_OK if successful, #GNUNET_SYSERR upon errors - */ -uint32_t -TALER_MERCHANTDB_deposit_permission_store (PGconn *conn, - const char *deposit_permission, - uint64_t transaction_id, - unsigned int pending, - const char *mint_url); -/* end of merchant-db.h */ +/* end of taler_merchantdb_lib.h */ |