[age-withdraw] fixed h_commitment calculation in handler

src/exchange/taler-exchange-httpd_age-withdraw.c

@@ -35,6 +35,7 @@
 #include "taler-exchange-httpd_age-withdraw.h"
 #include "taler-exchange-httpd_responses.h"
 #include "taler-exchange-httpd_keys.h"
+#include "taler_util.h"
 
 
 /**
@@ -104,7 +105,7 @@ free_age_withdraw_context_resources (struct AgeWithdrawContext *awc)
  * Parse the denominations and blinded coin data of an '/age-withdraw' request.
  *
  * @param connection The MHD connection to handle
- * @param j_denoms_h Array of n hashes of the denominations for the withdrawal, in JSON format
+ * @param j_denom_hs Array of n hashes of the denominations for the withdrawal, in JSON format
  * @param j_blinded_coin_evs Array of n arrays of kappa blinded envelopes of in JSON format for the coins.
  * @param[out] awc The context of the operation, only partially built at call time
  * @param[out] mhd_ret The result if a reply is queued for MHD
@@ -122,6 +123,7 @@ parse_age_withdraw_json (
   const char *error = NULL;
   unsigned int idx = 0;
   json_t *value = NULL;
+  struct GNUNET_HashContext *hash_context;
 
 
   /* The age value MUST be on the beginning of an age group */
@@ -160,6 +162,7 @@ parse_age_withdraw_json (
       goto EXIT;
 
     awc->num_coins =  num_coins;
+    awc->commitment.num_coins = num_coins;
   }
 
   /* Continue parsing the parts */
@@ -194,6 +197,9 @@ parse_age_withdraw_json (
   awc->coin_evs = GNUNET_new_array (awc->num_coins * TALER_CNC_KAPPA,
                                     struct TALER_BlindedPlanchet);
 
+  hash_context = GNUNET_CRYPTO_hash_context_start ();
+  GNUNET_assert (NULL != hash_context);
+
   /* Parse blinded envelopes. */
   json_array_foreach (j_blinded_coin_evs, idx, value) {
     const json_t *j_kappa_coin_evs = value;
@@ -222,9 +228,6 @@ parse_age_withdraw_json (
       size_t off = idx * TALER_CNC_KAPPA;
       unsigned int kappa = 0;
       enum GNUNET_GenericReturnValue ret;
-      struct GNUNET_HashContext *hash_context;
-
-      hash_context = GNUNET_CRYPTO_hash_context_start ();
 
       json_array_foreach (j_kappa_coin_evs, kappa, value) {
         struct GNUNET_JSON_Specification spec[] = {
@@ -271,12 +274,13 @@ parse_age_withdraw_json (
         }
       }
 
-      /* Finally, calculate the h_commitment from all blinded envelopes */
-      GNUNET_CRYPTO_hash_context_finish (hash_context,
-                                         &awc->commitment.h_commitment.hash);
     }
   }; /* json_array_foreach over j_blinded_coin_evs */
 
+  /* Finally, calculate the h_commitment from all blinded envelopes */
+  GNUNET_CRYPTO_hash_context_finish (hash_context,
+                                     &awc->commitment.h_commitment.hash);
+
   GNUNET_assert (NULL == error);
 
 
@@ -739,27 +743,6 @@ age_withdraw_transaction (void *cls,
                                       &allowed_maximum_age,
                                       &reserve_birthday,
                                       &conflict);
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "XXXXXXX got from do_age_withdraw:"
-                "\n\tqs: %d"
-                "\n\tcommitment: %s"
-                "\n\tmax_age: %d"
-                "\n\tfound: %d"
-                "\n\tbalance_ok: %d"
-                "\n\tage_ok: %d"
-                "\n\tallowed_maximum_age: %d"
-                "\n\treserve_birthday: %d"
-                "\n\tconflict: %d\n",
-                qs,
-                GNUNET_h2s (&awc->commitment.h_commitment.hash),
-                awc->commitment.max_age,
-                found,
-                balance_ok,
-                age_ok,
-                allowed_maximum_age,
-                reserve_birthday,
-                conflict);
-
     if (0 > qs)
     {
       if (GNUNET_DB_STATUS_HARD_ERROR == qs)

src/lib/exchange_api_age_withdraw.c

@@ -724,14 +724,6 @@ perform_protocol (
                                   awbh->reserve_priv,
                                   &awbh->reserve_sig);
 
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_wallet_age_withdraw_verify (&awbh->h_commitment,
-                                                   &awbh->amount_with_fee,
-                                                   &awbh->age_mask,
-                                                   awbh->max_age,
-                                                   &awbh->reserve_pub,
-                                                   &awbh->reserve_sig));
-
   /* Initiate the POST-request */
   j_request_body = GNUNET_JSON_PACK (
     GNUNET_JSON_pack_array_steal ("denom_hs", j_denoms),

src/testing/test_exchange_api_age_restriction.c

@@ -258,10 +258,10 @@ run (void *cls,
    */
   struct TALER_TESTING_Command age_withdraw[] = {
     CMD_TRANSFER_TO_EXCHANGE ("create-reserve-kyc-1",
-                              "EUR:20.02"),
+                              "EUR:30.02"),
     TALER_TESTING_cmd_check_bank_admin_transfer (
       "check-create-reserve-1",
-      "EUR:20.02",
+      "EUR:30.02",
       cred.user42_payto,
       cred.exchange_payto,
       "create-reserve-kyc-1"),
@@ -295,6 +295,8 @@ run (void *cls,
                                     8,
                                     MHD_HTTP_OK,
                                     "EUR:10",
+                                    "EUR:5",
+                                    "EUR:5",
                                     NULL),
     TALER_TESTING_cmd_end (),
   };

src/testing/testing_api_cmd_age_withdraw.c

@@ -294,7 +294,7 @@ age_withdraw_run (
     if (NULL == dpk)
     {
       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  "Failed to determine denomination key at %s\n",
+                  "Failed to determine denomination key for amount at %s\n",
                   (NULL != cmd) ? cmd->label : "<retried command>");
       GNUNET_break (0);
       TALER_TESTING_interpreter_fail (is);