From 209076ebd35458aaf61f4a8a4b71e127e4eda440 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Fri, 7 Apr 2017 22:37:00 +0200
Subject: implement denomination key revocation logic in exchangedb and
 taler-exchange-keyup (part of #3887)

---
 src/exchange-tools/taler-exchange-keycheck.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

(limited to 'src/exchange-tools/taler-exchange-keycheck.c')

diff --git a/src/exchange-tools/taler-exchange-keycheck.c b/src/exchange-tools/taler-exchange-keycheck.c
index ee5f0c420..3286cff4c 100644
--- a/src/exchange-tools/taler-exchange-keycheck.c
+++ b/src/exchange-tools/taler-exchange-keycheck.c
@@ -122,6 +122,7 @@ exchange_signkeys_check ()
  * @param cls closure (NULL)
  * @param dki the denomination key
  * @param alias coin alias
+ * @param was_revoked #GNUNET_YES if the @a dki was revoked and wallets should trigger /payback
  * @return #GNUNET_OK to continue to iterate,
  *  #GNUNET_NO to stop iteration with no error,
  *  #GNUNET_SYSERR to abort iteration with error!
@@ -129,7 +130,8 @@ exchange_signkeys_check ()
 static int
 denomkeys_iter (void *cls,
                 const char *alias,
-                const struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki)
+                const struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki,
+                int was_revoked)
 {
   struct GNUNET_HashCode hc;
 
@@ -190,7 +192,23 @@ denomkeys_iter (void *cls,
 static int
 exchange_denomkeys_check ()
 {
+  struct TALER_MasterPublicKeyP master_public_key_from_cfg;
+
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_data (kcfg,
+                                     "exchange",
+                                     "master_public_key",
+                                     &master_public_key_from_cfg,
+                                     sizeof (struct GNUNET_CRYPTO_EddsaPublicKey)))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange",
+                               "master_public_key");
+    global_ret = 1;
+    return GNUNET_NO;
+  }
   if (0 > TALER_EXCHANGEDB_denomination_keys_iterate (exchange_directory,
+                                                      &master_public_key_from_cfg,
                                                       &denomkeys_iter,
                                                       NULL))
     return GNUNET_NO;
-- 
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