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handle error code returned by TALER_amount_subtract in new error case TALER_EC_PAYBACK_COIN_BALANCE_NEGATIVE

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This commit is contained in:
Christian Grothoff 2017-05-09 13:33:26 +02:00
parent 46c7647b27
commit e6d09d2568
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GPG Key ID: 939E6BE1E29FC3CC
2 changed files with 20 additions and 3 deletions
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16
src/exchange/taler-exchange-httpd_db.c
View File

@ -2402,9 +2402,19 @@ TEH_DB_execute_payback (struct MHD_Connection *connection,
return TEH_RESPONSE_reply_internal_db_error (connection,
TALER_EC_PAYBACK_HISTORY_DB_ERROR);
}
TALER_amount_subtract (&amount,
value,
&spent);
if (GNUNET_SYSERR ==
TALER_amount_subtract (&amount,
value,
&spent))
{
GNUNET_break (0);
TEH_plugin->rollback (TEH_plugin->cls,
session);
TEH_plugin->free_coin_transaction_list (TEH_plugin->cls,
tl);
return TEH_RESPONSE_reply_internal_db_error (connection,
TALER_EC_PAYBACK_COIN_BALANCE_NEGATIVE);
}
if ( (0 == amount.fraction) &&
(0 == amount.value) )
{

7
src/include/taler_error_codes.h
View File

@ -896,6 +896,13 @@ enum TALER_ErrorCode
*/
TALER_EC_PAYBACK_BLINDING_FAILED = 1858,
/**
* The coin's remaining balance is zero. The request is denied.
* This response is provided with an HTTP status code of
* MHD_HTTP_INTERNAL_SERVER_ERROR
*/
TALER_EC_PAYBACK_COIN_BALANCE_NEGATIVE = 1857,
/* *********** Merchant backend error codes ********* */