From 29dee37eda674b70e673b6d7d1ce4f1cfdbb94be Mon Sep 17 00:00:00 2001
From: Jordy Romuald <87231934+JordyRo1@users.noreply.github.com>
Date: Fri, 10 Nov 2023 17:41:31 +0100
Subject: [PATCH] audit: zero check pair (#66)

---
 src/oracle/oracle.cairo | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/oracle/oracle.cairo b/src/oracle/oracle.cairo
index bd555546..95319f27 100644
--- a/src/oracle/oracle.cairo
+++ b/src/oracle/oracle.cairo
@@ -383,6 +383,12 @@ mod Oracle {
                     break ();
                 }
                 let key_pair = *key_pairs.get(idx).unwrap().unbox();
+                let base_currency = self.oracle_currencies_storage.read(key_pair.base_currency_id);
+                assert(base_currency.id != 0, 'No base currency registered');
+                let quote_currency = self
+                    .oracle_currencies_storage
+                    .read(key_pair.quote_currency_id);
+                assert(quote_currency.id != 0, 'No quote currency registered');
                 self.oracle_pairs_storage.write(key_pair.id, key_pair);
                 self
                     .oracle_pair_id_storage