[taler-exchange] 01/02: do not generate invalid /wire replies

[gnunet]

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grothoff pushed a commit to branch master
in repository exchange.

commit a11f6aa8f2fd716c4e6e3cd6b26d1f0623cc5eca
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Sun Dec 20 16:48:34 2020 +0100

    do not generate invalid /wire replies
---
 src/exchange/taler-exchange-httpd_wire2.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/exchange/taler-exchange-httpd_wire2.c 
b/src/exchange/taler-exchange-httpd_wire2.c
index b4f60b72..876cece1 100644
--- a/src/exchange/taler-exchange-httpd_wire2.c
+++ b/src/exchange/taler-exchange-httpd_wire2.c
@@ -213,6 +213,13 @@ build_wire_state (void)
     json_decref (wire_accounts_array);
     return NULL;
   }
+  if (0 == json_array_size (wire_accounts_array))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "No bank accounts for the exchange configured. Administrator 
must `enable-account` with taler-exchange-offline!\n");
+    json_decref (wire_accounts_array);
+    return NULL;
+  }
   wire_fee_object = json_object ();
   GNUNET_assert (NULL != wire_fee_object);
   {
@@ -243,6 +250,15 @@ build_wire_state (void)
           json_decref (wire_accounts_array);
           return NULL;
         }
+        if (0 == json_array_size (a))
+        {
+          GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                      "No wire fees for `%s' configured. Administrator must 
set `wire-fee` with taler-exchange-offline!\n",
+                      wire_method);
+          json_decref (wire_accounts_array);
+          json_decref (wire_fee_object);
+          return NULL;
+        }
         GNUNET_assert (0 ==
                        json_object_set_new (wire_fee_object,
                                             wire_method,

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