def handle_header(new_header):
# check that header matches current target
if not (bitcoin_data.skeinhash256(bitcoin_data.block_header_type.pack(new_header)) <= self.bitcoind_work.value['bits'].target):
return
bitcoind_best_block = self.bitcoind_work.value['previous_block']
if (self.best_block_header.value is None
or (
new_header['previous_block'] == bitcoind_best_block and
bitcoin_data.skeinhash256(bitcoin_data.block_header_type.pack(self.best_block_header.value)) == bitcoind_best_block
) # new is child of current and previous is current
or (
bitcoin_data.skeinhash256(bitcoin_data.block_header_type.pack(new_header)) == bitcoind_best_block and
self.best_block_header.value['previous_block'] != bitcoind_best_block
)): # new is current and previous is not a child of current
self.best_block_header.set(new_header)
def handle_bestblock(self, header, peer):
if bitcoin_data.skeinhash256(bitcoin_data.block_header_type.pack(header)) > header['bits'].target:
raise p2p.PeerMisbehavingError('received block header fails PoW test')
self.node.handle_header(header)