AaronFiore/electrum
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Replace initial headers download with hardcoded checkpoints

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ThomasV
2017-12-05 18:03:07 +01:00
parent b4e43754e0
commit d1b8a6fae6
4 changed files with 1120 additions and 80 deletions
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25
lib/verifier.py
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@@ -34,18 +34,31 @@ class SPV(ThreadJob):
# Keyed by tx hash. Value is None if the merkle branch was
# requested, and the merkle root once it has been verified
self.merkle_roots = {}
self.requested_chunks = {}
def run(self):
lh = self.network.get_local_height()
unverified = self.wallet.get_unverified_txs()
for tx_hash, tx_height in unverified.items():
# do not request merkle branch before headers are available
if (tx_height > 0) and (tx_hash not in self.merkle_roots) and (tx_height <= lh):
request = ('blockchain.transaction.get_merkle',
[tx_hash, tx_height])
self.network.send([request], self.verify_merkle)
self.print_error('requested merkle', tx_hash)
self.merkle_roots[tx_hash] = None
if (tx_height > 0) and (tx_height <= lh):
header = self.network.blockchain().read_header(tx_height)
index = tx_height // 2016
#print(index, header)
if header is None:
if index not in self.requested_chunks and self.network.interface:
print("requesting chunk", index)
#request = ('blockchain.block.get_chunk', [index])
#self.network.send([request], self.verify_merkle)
self.requested_chunks[index] = None
self.network.request_chunk(self.network.interface, index)
else:
if tx_hash not in self.merkle_roots:
request = ('blockchain.transaction.get_merkle',
[tx_hash, tx_height])
self.network.send([request], self.verify_merkle)
self.print_error('requested merkle', tx_hash)
self.merkle_roots[tx_hash] = None
if self.network.blockchain() != self.blockchain:
self.blockchain = self.network.blockchain()