merchant

Merchant backend to process payments, run by merchants
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insert_unclaim_signature.sql (1916B)


      1 --
      2 -- This file is part of TALER
      3 -- Copyright (C) 2026 Taler Systems SA
      4 --
      5 -- TALER is free software; you can redistribute it and/or modify it under the
      6 -- terms of the GNU General Public License as published by the Free Software
      7 -- Foundation; either version 3, or (at your option) any later version.
      8 --
      9 -- TALER is distributed in the hope that it will be useful, but WITHOUT ANY
     10 -- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
     11 -- A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
     12 --
     13 -- You should have received a copy of the GNU General Public License along with
     14 -- TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
     15 --
     16 
     17 
     18 DROP FUNCTION IF EXISTS merchant_do_insert_unclaim_signature;
     19 CREATE FUNCTION merchant_do_insert_unclaim_signature (
     20   IN in_order_id TEXT,
     21   IN in_nonce_str TEXT,
     22   IN in_notify_str TEXT,
     23   IN in_h_contract_terms BYTEA,
     24   IN in_nonce_sig BYTEA,
     25   OUT out_found BOOL)
     26 LANGUAGE plpgsql
     27 AS $$
     28 DECLARE
     29   my_expiration_time INT8;
     30 BEGIN
     31 
     32   SELECT pay_deadline
     33     INTO my_expiration_time
     34     FROM merchant_contract_terms
     35     WHERE order_id=in_order_id
     36       AND contract_terms->>'nonce' = in_nonce_str;
     37 
     38   IF NOT FOUND
     39   THEN
     40     -- FIXME: distinguish better between
     41     -- different "not found" cases (contract, unclaim sig exists)
     42     out_found = FALSE;
     43     RETURN;
     44   END IF;
     45 
     46   INSERT INTO merchant_unclaim_signatures
     47     (h_contract_terms
     48     ,unclaim_sig
     49     ,expiration_time)
     50     VALUES
     51     (in_h_contract_terms
     52     ,in_nonce_sig
     53     ,my_expiration_time)
     54     ON CONFLICT DO NOTHING;
     55 
     56   IF FOUND
     57   THEN
     58     out_found = TRUE;
     59 
     60     -- order status change notification
     61     EXECUTE FORMAT (
     62       'NOTIFY %s'
     63      ,in_notify_str);
     64 
     65     RETURN;
     66   END IF;
     67 
     68   PERFORM FROM merchant_unclaim_signatures
     69     WHERE h_contract_terms = in_h_contract_terms
     70       AND unclaim_sig = in_nonce_sig;
     71   out_found = FOUND;
     72 
     73 END $$;