From 71bff27245865f7b39be2a8ffd9bf43e994577a6 Mon Sep 17 00:00:00 2001
From: Kevin Froman <beardog@firemail.cc>
Date: Sun, 28 Jan 2018 21:45:43 -0600
Subject: [PATCH] do not add block in addblock function if it already is added

---
 onionr/core.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/onionr/core.py b/onionr/core.py
index d0a9bf0e..6617f1e8 100644
--- a/onionr/core.py
+++ b/onionr/core.py
@@ -134,6 +134,8 @@ class Core:
         '''add a hash value to the block db (should be in hex format)'''
         if not os.path.exists(self.blockDB):
             raise Exception('Block db does not exist')
+        if self._utils.hasBlock(newHash):
+            return
         conn = sqlite3.connect(self.blockDB)
         c = conn.cursor()
         currentTime = math.floor(time.time())