exchange

commit 3bb7be6cb8a25984ee6bff2f991690b6a6a08220
parent 5d25c0479b59f406d9c92ddd577b5b230dce033d
Author: Florian Dold <dold@taler.net>
Date:   Mon, 27 Jul 2026 20:43:38 +0200

exchange: preserve account rules when a sanction hit only investigates

Diffstat:
M
src/exchangedb/insert_sanction_list_hit.sql
 | 
35
+++++++++++++++++++++++++++++++++--

1 file changed, 33 insertions(+), 2 deletions(-)
diff --git a/src/exchangedb/insert_sanction_list_hit.sql b/src/exchangedb/insert_sanction_list_hit.sql
@@ -30,8 +30,39 @@ AS $$
 DECLARE
   my_i INT4;
   ini_event TEXT;
+  my_rules JSONB;
+  my_expiration INT8;
 BEGIN
 
+my_rules = in_new_rules;
+my_expiration = in_expiration_time;
+
+IF in_new_rules IS NULL
+THEN
+  -- A NULL here means "flag this account, but do not change its rules".
+  -- Storing the NULL would instead mean "no custom rules", silently
+  -- reverting the account to the exchange defaults and revoking KYC the
+  -- customer already passed.  So carry the rule set that currently applies
+  -- (the one exchange_do_get_kyc_rules would pick) forward, together with
+  -- its expiration.
+  SELECT jnew_rules
+        ,expiration_time
+    INTO my_rules
+        ,my_expiration
+    FROM legitimization_outcomes
+   WHERE h_payto=in_h_normalized_payto
+     AND is_active
+   ORDER BY expiration_time DESC
+           ,outcome_serial_id DESC
+   LIMIT 1;
+  IF NOT FOUND OR my_rules IS NULL
+  THEN
+    -- Nothing to preserve: the account is already on the default rules.
+    my_rules = NULL;
+    my_expiration = in_expiration_time;
+  END IF;
+END IF;
+
 -- Disable all previous legitimization outcomes.
 UPDATE legitimization_outcomes
    SET is_active=FALSE
@@ -48,10 +79,10 @@ INSERT INTO legitimization_outcomes
   VALUES
   (in_h_normalized_payto
   ,in_decision_time
-  ,in_expiration_time
+  ,my_expiration
   ,in_properties
   ,in_to_investigate
-  ,in_new_rules
+  ,my_rules
   )
   RETURNING
     outcome_serial_id