From 009f4f9f721672a040f30837e5a38594973d3fc4 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Wed, 20 Jan 2016 02:48:42 -0800
Subject: [PATCH] debug messages for dos prevention.

---
 lib/bcoin/pool.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/bcoin/pool.js b/lib/bcoin/pool.js
index 28b7b465..7c745e77 100644
--- a/lib/bcoin/pool.js
+++ b/lib/bcoin/pool.js
@@ -558,6 +558,7 @@ Pool.prototype._handleBlock = function _handleBlock(block, peer) {
   // Ensure the block was not invalid last time.
   // Someone might be sending us bad blocks to DoS us.
   if (this.block.invalid[block.hash('hex')]) {
+    this.emit('debug', 'Peer is sending an invalid chain (%s)', peer.host);
     this.misbehaving(peer, 100);
     return false;
   }
@@ -565,6 +566,7 @@ Pool.prototype._handleBlock = function _handleBlock(block, peer) {
   // Ensure this is not a continuation
   // of an invalid chain.
   if (this.block.invalid[block.prevBlock]) {
+    this.emit('debug', 'Peer is sending an invalid chain (%s)', peer.host);
     this.misbehaving(peer, 100);
     return false;
   }
@@ -604,6 +606,7 @@ Pool.prototype._handleBlock = function _handleBlock(block, peer) {
       // Make sure the peer doesn't send us
       // more than 100 orphans every 3 minutes.
       if (this.orphaning(peer)) {
+        this.emit('debug', 'Peer is orphaning (%s)', peer.host);
         this.misbehaving(peer, 100);
         return false;
       }