remove refund_fee from refund confirmation message and signature

src/exchange/taler-exchange-httpd_refund.c

@@ -61,8 +61,6 @@ reply_refund_success (struct MHD_Connection *connection,
 
   TALER_amount_hton (&rc.refund_amount,
                      &refund->refund_amount);
-  TALER_amount_hton (&rc.refund_fee,
-                     &refund->refund_fee);
   if (GNUNET_OK !=
       TEH_KS_sign (&rc,
                    &pub,
@@ -76,8 +74,7 @@ reply_refund_success (struct MHD_Connection *connection,
   return TALER_MHD_reply_json_pack (
     connection,
     MHD_HTTP_OK,
-    "{s:o, s:o, s:o}",
+    "{s:o, s:o}",
-    "refund_fee", TALER_JSON_from_amount (&refund->refund_fee),
     "exchange_sig", GNUNET_JSON_from_data_auto (&sig),
     "exchange_pub", GNUNET_JSON_from_data_auto (&pub));
 }

src/include/taler_exchange_service.h

@@ -911,7 +911,6 @@ struct TALER_EXCHANGE_RefundHandle;
  *
  * @param cls closure
  * @param hr HTTP response data
- * @param refund_fee the refund fee the exchange charged us
  * @param sign_key exchange key used to sign @a obj, or NULL
  * @param signature the actual signature, or NULL on error
  */
@@ -919,7 +918,6 @@ typedef void
 (*TALER_EXCHANGE_RefundCallback) (
   void *cls,
   const struct TALER_EXCHANGE_HttpResponse *hr,
-  const struct TALER_Amount *refund_fee,
   const struct TALER_ExchangePublicKeyP *sign_key,
   const struct TALER_ExchangeSignatureP *signature);
 

src/include/taler_signatures.h

@@ -509,7 +509,6 @@ struct TALER_RefundRequestPS
    * exchange to the customer.
    */
   struct TALER_AmountNBO refund_amount;
-
 };
 
 
@@ -552,18 +551,6 @@ struct TALER_RefundConfirmationPS
    * exchange to the customer.
    */
   struct TALER_AmountNBO refund_amount;
-
-  /**
-   * Refund fee charged by the exchange.  This must match the
-   * Exchange's denomination key's refund fee.  If the client puts in
-   * an invalid refund fee (too high or too low) that does not match
-   * the Exchange's denomination key, the refund operation is invalid
-   * and will be rejected by the exchange.  The @e amount_with_fee
-   * minus the @e refund_fee is the amount that will be credited to
-   * the original coin.
-   */
-  struct TALER_AmountNBO refund_fee; // FIXME: kill! => also do not return refund_fee (from exchange + merchant APIs)
-
 };
 
 

src/lib/exchange_api_refund.c

@@ -97,7 +97,6 @@ verify_refund_signature_ok (struct TALER_EXCHANGE_RefundHandle *rh,
   struct GNUNET_JSON_Specification spec[] = {
     GNUNET_JSON_spec_fixed_auto ("exchange_sig", exchange_sig),
     GNUNET_JSON_spec_fixed_auto ("exchange_pub", exchange_pub),
-    TALER_JSON_spec_amount_nbo ("refund_fee", &rh->depconf.refund_fee),
     GNUNET_JSON_spec_end ()
   };
 
@@ -148,8 +147,6 @@ handle_refund_finished (void *cls,
   struct TALER_ExchangeSignatureP exchange_sig;
   struct TALER_ExchangePublicKeyP *ep = NULL;
   struct TALER_ExchangeSignatureP *es = NULL;
-  struct TALER_Amount ra;
-  const struct TALER_Amount *rf = NULL;
   const json_t *j = response;
   struct TALER_EXCHANGE_HttpResponse hr = {
     .reply = j,
@@ -178,9 +175,6 @@ handle_refund_finished (void *cls,
     {
       ep = &exchange_pub;
       es = &exchange_sig;
-      TALER_amount_ntoh (&ra,
-                         &rh->depconf.refund_fee);
-      rf = &ra;
     }
     break;
   case MHD_HTTP_BAD_REQUEST:
@@ -239,7 +233,6 @@ handle_refund_finished (void *cls,
   }
   rh->cb (rh->cb_cls,
           &hr,
-          rf,
           ep,
           es);
   TALER_EXCHANGE_refund_cancel (rh);

src/testing/testing_api_cmd_refund.c

@@ -76,7 +76,6 @@ struct RefundState
  *
  * @param cls closure
  * @param hr HTTP response details
- * @param refund_fee the refund fee the exchange charged
  * @param exchange_pub public key the exchange
  *        used for signing @a obj.
  * @param exchange_sig actual signature confirming the refund
@@ -84,7 +83,6 @@ struct RefundState
 static void
 refund_cb (void *cls,
            const struct TALER_EXCHANGE_HttpResponse *hr,
-           const struct TALER_Amount *refund_fee,
            const struct TALER_ExchangePublicKeyP *exchange_pub,
            const struct TALER_ExchangeSignatureP *exchange_sig)
 {
@@ -92,7 +90,6 @@ refund_cb (void *cls,
   struct RefundState *rs = cls;
   struct TALER_TESTING_Command *refund_cmd;
 
-  (void) refund_fee;
   refund_cmd = &rs->is->commands[rs->is->ip];
   rs->rh = NULL;
   if (rs->expected_response_code != hr->http_status)