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.
106 lines
5.3 KiB
106 lines
5.3 KiB
#!/usr/bin/env python3 |
|
# Copyright (c) 2014-2017 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.test_framework import BitcoinTestFramework |
|
from test_framework.util import * |
|
from test_framework.mininode import FromHex, ToHex |
|
from test_framework.messages import CMerkleBlock |
|
|
|
class MerkleBlockTest(BitcoinTestFramework): |
|
def set_test_params(self): |
|
self.num_nodes = 4 |
|
self.setup_clean_chain = True |
|
# Nodes 0/1 are "wallet" nodes, Nodes 2/3 are used for testing |
|
self.extra_args = [[], [], [], ["-txindex"]] |
|
|
|
def setup_network(self): |
|
self.setup_nodes() |
|
connect_nodes(self.nodes[0], 1) |
|
connect_nodes(self.nodes[0], 2) |
|
connect_nodes(self.nodes[0], 3) |
|
|
|
self.sync_all() |
|
|
|
def run_test(self): |
|
self.log.info("Mining blocks...") |
|
self.nodes[0].generate(105) |
|
self.sync_all() |
|
|
|
chain_height = self.nodes[1].getblockcount() |
|
assert_equal(chain_height, 105) |
|
assert_equal(self.nodes[1].getbalance(), 0) |
|
assert_equal(self.nodes[2].getbalance(), 0) |
|
|
|
node0utxos = self.nodes[0].listunspent(1) |
|
tx1 = self.nodes[0].createrawtransaction([node0utxos.pop()], {self.nodes[1].getnewaddress(): 49.99}) |
|
txid1 = self.nodes[0].sendrawtransaction(self.nodes[0].signrawtransaction(tx1)["hex"]) |
|
tx2 = self.nodes[0].createrawtransaction([node0utxos.pop()], {self.nodes[1].getnewaddress(): 49.99}) |
|
txid2 = self.nodes[0].sendrawtransaction(self.nodes[0].signrawtransaction(tx2)["hex"]) |
|
# 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[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1])), [txid1]) |
|
assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1, txid2])), txlist) |
|
assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1, txid2], blockhash)), txlist) |
|
|
|
txin_spent = self.nodes[1].listunspent(1).pop() |
|
tx3 = self.nodes[1].createrawtransaction([txin_spent], {self.nodes[0].getnewaddress(): 49.98}) |
|
txid3 = self.nodes[0].sendrawtransaction(self.nodes[1].signrawtransaction(tx3)["hex"]) |
|
self.nodes[0].generate(1) |
|
self.sync_all() |
|
|
|
txid_spent = txin_spent["txid"] |
|
txid_unspent = txid1 if txin_spent["txid"] != txid1 else txid2 |
|
|
|
# We can't find the block from a fully-spent tx |
|
assert_raises_rpc_error(-5, "Transaction not yet in block", self.nodes[2].gettxoutproof, [txid_spent]) |
|
# We can get the proof if we specify the block |
|
assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].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[2].gettxoutproof, [txid_spent], "00000000000000000000000000000000") |
|
# We can get the proof if the transaction is unspent |
|
assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].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[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1, txid2]))), sorted(txlist)) |
|
assert_equal(sorted(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid2, txid1]))), sorted(txlist)) |
|
# We can always get a proof if we have a -txindex |
|
assert_equal(self.nodes[2].verifytxoutproof(self.nodes[3].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[2].gettxoutproof, [txid1, txid3]) |
|
|
|
# Now we'll try tweaking a proof. |
|
proof = self.nodes[3].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[2].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()
|
|
|