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protocol: Validate CLTV block values

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This commit is contained in:
tecnovert
2022-09-26 19:20:52 +02:00
parent 46d1856f71
commit ef0f5ea1ea
3 changed files with 21 additions and 16 deletions
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13
basicswap/interface/btc.py
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@@ -243,6 +243,19 @@ class BTCInterface(CoinInterface):
def getBlockHeader(self, block_hash):
return self.rpc_callback('getblockheader', [block_hash])
def getBlockHeaderAt(self, time, block_after=False):
blockchaininfo = self.rpc_callback('getblockchaininfo')
last_block_header = self.rpc_callback('getblockheader', [blockchaininfo['bestblockhash']])
max_tries = 5000
for i in range(max_tries):
prev_block_header = self.rpc_callback('getblock', [last_block_header['previousblockhash']])
if prev_block_header['time'] <= time:
return last_block_header if block_after else prev_block_header
last_block_header = prev_block_header
raise ValueError(f'Block header not found at time: {time}')
def initialiseWallet(self, key_bytes):
key_wif = self.encodeKey(key_bytes)