From 794cd03b8fbfc02049f439426af7414211f48934 Mon Sep 17 00:00:00 2001
From: David Schwartz <davidjoelschwartz@gmail.com>
Date: Tue, 24 Sep 2013 15:47:56 -0700
Subject: [PATCH] Don't process validations signed more than two minutes ago.

---
 src/ripple_app/peers/Peer.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/ripple_app/peers/Peer.cpp b/src/ripple_app/peers/Peer.cpp
index 8311e7432..9c2b3492f 100644
--- a/src/ripple_app/peers/Peer.cpp
+++ b/src/ripple_app/peers/Peer.cpp
@@ -1476,6 +1476,7 @@ static void checkValidation (Job&, SerializedValidation::pointer val, bool isTru
 
 void PeerImp::recvValidation (const boost::shared_ptr<protocol::TMValidation>& packet, Application::ScopedLockType& masterLockHolder)
 {
+    uint32 closeTime = getApp().getOPs().getCloseTimeNC();
     masterLockHolder.unlock ();
 
     if (packet->validation ().size () < 50)
@@ -1494,6 +1495,13 @@ void PeerImp::recvValidation (const boost::shared_ptr<protocol::TMValidation>& p
         SerializerIterator sit (s);
         SerializedValidation::pointer val = boost::make_shared<SerializedValidation> (boost::ref (sit), false);
 
+        if (closeTime > (120 + val->getFieldU32(sfSigningTime)))
+        {
+            WriteLog (lsTRACE, Peer) << "Validation is more than two minutes old";
+            applyLoadCharge (LT_UnwantedData);
+            return;
+        }
+
         if (! getApp().getHashRouter ().addSuppressionPeer (s.getSHA512Half(), mPeerId))
         {
             WriteLog (lsTRACE, Peer) << "Validation is duplicate";