You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
109 lines
6.0 KiB
109 lines
6.0 KiB
#!/usr/bin/env python3
|
|
# Copyright (c) 2014-2019 The Bitcoin Core developers
|
|
# Distributed under the MIT software license, see the accompanying
|
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
"""Test gettxoutproof and verifytxoutproof RPCs."""
|
|
|
|
from test_framework.messages import CMerkleBlock, FromHex, ToHex
|
|
from test_framework.test_framework import BitcoinTestFramework
|
|
from test_framework.util import assert_equal, assert_raises_rpc_error
|
|
from test_framework.wallet import MiniWallet
|
|
|
|
|
|
class MerkleBlockTest(BitcoinTestFramework):
|
|
def set_test_params(self):
|
|
self.num_nodes = 2
|
|
self.setup_clean_chain = True
|
|
self.extra_args = [
|
|
[],
|
|
["-txindex"],
|
|
]
|
|
|
|
def run_test(self):
|
|
miniwallet = MiniWallet(self.nodes[0])
|
|
# Add enough mature utxos to the wallet, so that all txs spend confirmed coins
|
|
miniwallet.generate(5)
|
|
self.nodes[0].generate(100)
|
|
self.sync_all()
|
|
|
|
chain_height = self.nodes[1].getblockcount()
|
|
assert_equal(chain_height, 105)
|
|
|
|
txid1 = miniwallet.send_self_transfer(from_node=self.nodes[0])['txid']
|
|
txid2 = miniwallet.send_self_transfer(from_node=self.nodes[0])['txid']
|
|
# This will raise an exception because the transaction is not yet in a block
|
|
assert_raises_rpc_error(-5, "Transaction not yet in block", self.nodes[0].gettxoutproof, [txid1])
|
|
|
|
self.nodes[0].generate(1)
|
|
blockhash = self.nodes[0].getblockhash(chain_height + 1)
|
|
self.sync_all()
|
|
|
|
txlist = []
|
|
blocktxn = self.nodes[0].getblock(blockhash, True)["tx"]
|
|
txlist.append(blocktxn[1])
|
|
txlist.append(blocktxn[2])
|
|
|
|
assert_equal(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid1])), [txid1])
|
|
assert_equal(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid1, txid2])), txlist)
|
|
assert_equal(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid1, txid2], blockhash)), txlist)
|
|
|
|
txin_spent = miniwallet.get_utxo() # Get the change from txid2
|
|
tx3 = miniwallet.send_self_transfer(from_node=self.nodes[0], utxo_to_spend=txin_spent)
|
|
txid3 = tx3['txid']
|
|
self.nodes[0].generate(1)
|
|
self.sync_all()
|
|
|
|
txid_spent = txin_spent["txid"]
|
|
txid_unspent = txid1 # Input was change from txid2, so txid1 should be unspent
|
|
|
|
# Invalid txids
|
|
assert_raises_rpc_error(-8, "txid must be of length 64 (not 32, for '00000000000000000000000000000000')", self.nodes[0].gettxoutproof, ["00000000000000000000000000000000"], blockhash)
|
|
assert_raises_rpc_error(-8, "txid must be hexadecimal string (not 'ZZZ0000000000000000000000000000000000000000000000000000000000000')", self.nodes[0].gettxoutproof, ["ZZZ0000000000000000000000000000000000000000000000000000000000000"], blockhash)
|
|
# Invalid blockhashes
|
|
assert_raises_rpc_error(-8, "blockhash must be of length 64 (not 32, for '00000000000000000000000000000000')", self.nodes[0].gettxoutproof, [txid_spent], "00000000000000000000000000000000")
|
|
assert_raises_rpc_error(-8, "blockhash must be hexadecimal string (not 'ZZZ0000000000000000000000000000000000000000000000000000000000000')", self.nodes[0].gettxoutproof, [txid_spent], "ZZZ0000000000000000000000000000000000000000000000000000000000000")
|
|
# We can't find the block from a fully-spent tx
|
|
assert_raises_rpc_error(-5, "Transaction not yet in block", self.nodes[0].gettxoutproof, [txid_spent])
|
|
# We can get the proof if we specify the block
|
|
assert_equal(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid_spent], blockhash)), [txid_spent])
|
|
# We can't get the proof if we specify a non-existent block
|
|
assert_raises_rpc_error(-5, "Block not found", self.nodes[0].gettxoutproof, [txid_spent], "0000000000000000000000000000000000000000000000000000000000000000")
|
|
# We can get the proof if the transaction is unspent
|
|
assert_equal(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid_unspent])), [txid_unspent])
|
|
# We can get the proof if we provide a list of transactions and one of them is unspent. The ordering of the list should not matter.
|
|
assert_equal(sorted(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid1, txid2]))), sorted(txlist))
|
|
assert_equal(sorted(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid2, txid1]))), sorted(txlist))
|
|
# We can always get a proof if we have a -txindex
|
|
assert_equal(self.nodes[0].verifytxoutproof(self.nodes[1].gettxoutproof([txid_spent])), [txid_spent])
|
|
# We can't get a proof if we specify transactions from different blocks
|
|
assert_raises_rpc_error(-5, "Not all transactions found in specified or retrieved block", self.nodes[0].gettxoutproof, [txid1, txid3])
|
|
# Test empty list
|
|
assert_raises_rpc_error(-5, "Transaction not yet in block", self.nodes[0].gettxoutproof, [])
|
|
# Test duplicate txid
|
|
assert_raises_rpc_error(-8, 'Invalid parameter, duplicated txid', self.nodes[0].gettxoutproof, [txid1, txid1])
|
|
|
|
# Now we'll try tweaking a proof.
|
|
proof = self.nodes[1].gettxoutproof([txid1, txid2])
|
|
assert txid1 in self.nodes[0].verifytxoutproof(proof)
|
|
assert txid2 in self.nodes[1].verifytxoutproof(proof)
|
|
|
|
tweaked_proof = FromHex(CMerkleBlock(), proof)
|
|
|
|
# Make sure that our serialization/deserialization is working
|
|
assert txid1 in self.nodes[0].verifytxoutproof(ToHex(tweaked_proof))
|
|
|
|
# Check to see if we can go up the merkle tree and pass this off as a
|
|
# single-transaction block
|
|
tweaked_proof.txn.nTransactions = 1
|
|
tweaked_proof.txn.vHash = [tweaked_proof.header.hashMerkleRoot]
|
|
tweaked_proof.txn.vBits = [True] + [False]*7
|
|
|
|
for n in self.nodes:
|
|
assert not n.verifytxoutproof(ToHex(tweaked_proof))
|
|
|
|
# TODO: try more variants, eg transactions at different depths, and
|
|
# verify that the proofs are invalid
|
|
|
|
if __name__ == '__main__':
|
|
MerkleBlockTest().main()
|