exchange

commit a5451527cb26d876388567dc26113a83e0b79e15
parent e984dbd8f48b6f4588d39e4c30ef8bceaad7e55d
Author: Christian Grothoff <christian@grothoff.org>
Date:   Tue, 11 Jul 2023 20:36:52 +0200

implement 'lost' field for #7883

Diffstat:
M
src/exchange/taler-exchange-httpd_keys.c
 | 
18
+++++++++++++++++-
M
src/include/taler_exchange_service.h
 | 
7
+++++++
M
src/lib/exchange_api_handle.c
 | 
4
++++

3 files changed, 28 insertions(+), 1 deletion(-)
diff --git a/src/exchange/taler-exchange-httpd_keys.c b/src/exchange/taler-exchange-httpd_keys.c
@@ -2960,8 +2960,18 @@ finish_keys_response (struct TEH_KeyStateHandle *ksh)
         /* Now that we have found/created the right group, add the
            denomination to the list */
         {
+          struct HelperDenomination *hd;
           struct GNUNET_JSON_PackSpec key_spec;
-
+          bool private_key_lost;
+
+          hd = GNUNET_CONTAINER_multihashmap_get (ksh->helpers->denom_keys,
+                                                  &dk->h_denom_pub.hash);
+          private_key_lost
+            = (NULL == hd) ||
+              GNUNET_TIME_absolute_is_past (
+                GNUNET_TIME_absolute_add (
+                  hd->start_time.abs_time,
+                  hd->validity_duration));
           switch (meta.cipher)
           {
           case TALER_DENOMINATION_RSA:
@@ -2984,6 +2994,12 @@ finish_keys_response (struct TEH_KeyStateHandle *ksh)
           entry = GNUNET_JSON_PACK (
             GNUNET_JSON_pack_data_auto ("master_sig",
                                         &dk->master_sig),
+            GNUNET_JSON_pack_allow_null (
+              private_key_lost
+              ? GNUNET_JSON_pack_bool ("lost",
+                                       true)
+              : GNUNET_JSON_pack_string ("dummy",
+                                         NULL)),
             GNUNET_JSON_pack_timestamp ("stamp_start",
                                         dk->meta.start),
             GNUNET_JSON_pack_timestamp ("stamp_expire_withdraw",
diff --git a/src/include/taler_exchange_service.h b/src/include/taler_exchange_service.h
@@ -121,6 +121,13 @@ struct TALER_EXCHANGE_DenomPublicKey
   struct TALER_DenomFeeSet fees;
 
   /**
+   * Set to true if the private denomination key has been
+   * lost by the exchange and thus the key cannot be
+   * used for withdrawing at this time.
+   */
+  bool lost;
+
+  /**
    * Set to true if this denomination key has been
    * revoked by the exchange.
    */
diff --git a/src/lib/exchange_api_handle.c b/src/lib/exchange_api_handle.c
@@ -246,6 +246,10 @@ parse_json_denomkey_partially (
                                 &denom_key->valid_from),
     GNUNET_JSON_spec_timestamp ("stamp_expire_legal",
                                 &denom_key->expire_legal),
+    GNUNET_JSON_spec_mark_optional (
+      GNUNET_JSON_spec_bool ("lost",
+                             &denom_key->lost),
+      NULL),
     TALER_JSON_spec_denom_pub_cipher (NULL,
                                       cipher,
                                       &denom_key->key),