tsanitize pass_checkpoint - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
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---
DIR commit 1b14a18b1addbc264800cd6961bdbe02ac3c7d2b
DIR parent d371e1c807f3cf8b0a65d03f470f104baf5416cc
HTML Author: ThomasV <thomasv@electrum.org>
Date: Thu, 30 Mar 2017 05:55:02 +0200
sanitize pass_checkpoint
Diffstat:
M lib/blockchain.py | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
---
DIR diff --git a/lib/blockchain.py b/lib/blockchain.py
t@@ -55,9 +55,17 @@ class Blockchain(util.PrintError):
t.start()
def pass_checkpoint(self, header):
+ if type(header) is not dict:
+ return False
if header.get('block_height') != self.checkpoint_height:
return True
- return self.hash_header(header) == self.checkpoint_hash
+ if header.get('prev_block_hash') is None:
+ header['prev_block_hash'] = '00'*32
+ try:
+ _hash = self.hash_header(header)
+ except:
+ return False
+ return _hash == self.checkpoint_hash
def verify_header(self, header, prev_header, bits, target):
prev_hash = self.hash_header(prev_header)