From b823126bfe5625ea8e0a70c8803ebee7d07e28e6 Mon Sep 17 00:00:00 2001
From: Rongjian Lan <rongjian.lan@gmail.com>
Date: Sat, 9 May 2020 10:43:08 -0700
Subject: [PATCH] verify block before proposal (#2968)

* verify block before proposal

* only verify header after block proposal
---
 node/node_newblock.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/node/node_newblock.go b/node/node_newblock.go
index 0b8ba0b128..dcbce6a660 100644
--- a/node/node_newblock.go
+++ b/node/node_newblock.go
@@ -50,7 +50,11 @@ func (node *Node) WaitForConsensusReadyV2(readySignal chan struct{}, stopChan ch
 						Msg("PROPOSING NEW BLOCK ------------------------------------------------")
 
 					newBlock, err := node.proposeNewBlock()
+					if err != nil {
+						utils.Logger().Err(err).Msg("!!!!!!!!!Failed Proposing New Block!!!!!!!!!")
+					}
 
+					err = node.Blockchain().Validator().ValidateHeader(newBlock, true)
 					if err == nil {
 						utils.Logger().Debug().
 							Uint64("blockNum", newBlock.NumberU64()).
@@ -65,7 +69,7 @@ func (node *Node) WaitForConsensusReadyV2(readySignal chan struct{}, stopChan ch
 						node.BlockChannel <- newBlock
 						break
 					} else {
-						utils.Logger().Err(err).Msg("!!!!!!!!!Failed Proposing New Block!!!!!!!!!")
+						utils.Logger().Err(err).Msg("!!!!!!!!!Failed Verifying New Block Header!!!!!!!!!")
 					}
 				}
 			}