mirror of https://github.com/bitcoin/bitcoin
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.
170 lines
7.9 KiB
170 lines
7.9 KiB
#!/usr/bin/env python2
|
|
# Copyright (c) 2014-2015 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 proper accounting with an equivalent malleability clone
|
|
#
|
|
|
|
from test_framework.test_framework import BitcoinTestFramework
|
|
from test_framework.authproxy import AuthServiceProxy, JSONRPCException
|
|
from decimal import Decimal
|
|
from test_framework.util import *
|
|
import os
|
|
import shutil
|
|
|
|
class TxnMallTest(BitcoinTestFramework):
|
|
|
|
def add_options(self, parser):
|
|
parser.add_option("--mineblock", dest="mine_block", default=False, action="store_true",
|
|
help="Test double-spend of 1-confirmed transaction")
|
|
|
|
def setup_network(self):
|
|
# Start with split network:
|
|
return super(TxnMallTest, self).setup_network(True)
|
|
|
|
def run_test(self):
|
|
# All nodes should start with 1,250 BTC:
|
|
starting_balance = 1250
|
|
for i in range(4):
|
|
assert_equal(self.nodes[i].getbalance(), starting_balance)
|
|
self.nodes[i].getnewaddress("") # bug workaround, coins generated assigned to first getnewaddress!
|
|
|
|
# Assign coins to foo and bar accounts:
|
|
self.nodes[0].settxfee(.001)
|
|
|
|
node0_address_foo = self.nodes[0].getnewaddress("foo")
|
|
fund_foo_txid = self.nodes[0].sendfrom("", node0_address_foo, 1219)
|
|
fund_foo_tx = self.nodes[0].gettransaction(fund_foo_txid)
|
|
|
|
node0_address_bar = self.nodes[0].getnewaddress("bar")
|
|
fund_bar_txid = self.nodes[0].sendfrom("", node0_address_bar, 29)
|
|
fund_bar_tx = self.nodes[0].gettransaction(fund_bar_txid)
|
|
|
|
assert_equal(self.nodes[0].getbalance(""),
|
|
starting_balance - 1219 - 29 + fund_foo_tx["fee"] + fund_bar_tx["fee"])
|
|
|
|
# Coins are sent to node1_address
|
|
node1_address = self.nodes[1].getnewaddress("from0")
|
|
|
|
# Send tx1, and another transaction tx2 that won't be cloned
|
|
txid1 = self.nodes[0].sendfrom("foo", node1_address, 40, 0)
|
|
txid2 = self.nodes[0].sendfrom("bar", node1_address, 20, 0)
|
|
|
|
# Construct a clone of tx1, to be malleated
|
|
rawtx1 = self.nodes[0].getrawtransaction(txid1,1)
|
|
clone_inputs = [{"txid":rawtx1["vin"][0]["txid"],"vout":rawtx1["vin"][0]["vout"]}]
|
|
clone_outputs = {rawtx1["vout"][0]["scriptPubKey"]["addresses"][0]:rawtx1["vout"][0]["value"],
|
|
rawtx1["vout"][1]["scriptPubKey"]["addresses"][0]:rawtx1["vout"][1]["value"]}
|
|
clone_raw = self.nodes[0].createrawtransaction(clone_inputs, clone_outputs)
|
|
|
|
# 3 hex manipulations on the clone are required
|
|
|
|
# manipulation 1. sequence is at version+#inputs+input+sigstub
|
|
posseq = 2*(4+1+36+1)
|
|
seqbe = '%08x' % rawtx1["vin"][0]["sequence"]
|
|
clone_raw = clone_raw[:posseq] + seqbe[6:8] + seqbe[4:6] + seqbe[2:4] + seqbe[0:2] + clone_raw[posseq + 8:]
|
|
|
|
# manipulation 2. createrawtransaction randomizes the order of its outputs, so swap them if necessary.
|
|
# output 0 is at version+#inputs+input+sigstub+sequence+#outputs
|
|
# 40 BTC serialized is 00286bee00000000
|
|
pos0 = 2*(4+1+36+1+4+1)
|
|
hex40 = "00286bee00000000"
|
|
output_len = 16 + 2 + 2 * int("0x" + clone_raw[pos0 + 16 : pos0 + 16 + 2], 0)
|
|
if (rawtx1["vout"][0]["value"] == 40 and clone_raw[pos0 : pos0 + 16] != hex40 or
|
|
rawtx1["vout"][0]["value"] != 40 and clone_raw[pos0 : pos0 + 16] == hex40):
|
|
output0 = clone_raw[pos0 : pos0 + output_len]
|
|
output1 = clone_raw[pos0 + output_len : pos0 + 2 * output_len]
|
|
clone_raw = clone_raw[:pos0] + output1 + output0 + clone_raw[pos0 + 2 * output_len:]
|
|
|
|
# manipulation 3. locktime is after outputs
|
|
poslt = pos0 + 2 * output_len
|
|
ltbe = '%08x' % rawtx1["locktime"]
|
|
clone_raw = clone_raw[:poslt] + ltbe[6:8] + ltbe[4:6] + ltbe[2:4] + ltbe[0:2] + clone_raw[poslt + 8:]
|
|
|
|
# Use a different signature hash type to sign. This creates an equivalent but malleated clone.
|
|
# Don't send the clone anywhere yet
|
|
tx1_clone = self.nodes[0].signrawtransaction(clone_raw, None, None, "ALL|ANYONECANPAY")
|
|
assert_equal(tx1_clone["complete"], True)
|
|
|
|
# Have node0 mine a block, if requested:
|
|
if (self.options.mine_block):
|
|
self.nodes[0].generate(1)
|
|
sync_blocks(self.nodes[0:2])
|
|
|
|
tx1 = self.nodes[0].gettransaction(txid1)
|
|
tx2 = self.nodes[0].gettransaction(txid2)
|
|
|
|
# Node0's balance should be starting balance, plus 50BTC for another
|
|
# matured block, minus tx1 and tx2 amounts, and minus transaction fees:
|
|
expected = starting_balance + fund_foo_tx["fee"] + fund_bar_tx["fee"]
|
|
if self.options.mine_block: expected += 50
|
|
expected += tx1["amount"] + tx1["fee"]
|
|
expected += tx2["amount"] + tx2["fee"]
|
|
assert_equal(self.nodes[0].getbalance(), expected)
|
|
|
|
# foo and bar accounts should be debited:
|
|
assert_equal(self.nodes[0].getbalance("foo", 0), 1219 + tx1["amount"] + tx1["fee"])
|
|
assert_equal(self.nodes[0].getbalance("bar", 0), 29 + tx2["amount"] + tx2["fee"])
|
|
|
|
if self.options.mine_block:
|
|
assert_equal(tx1["confirmations"], 1)
|
|
assert_equal(tx2["confirmations"], 1)
|
|
# Node1's "from0" balance should be both transaction amounts:
|
|
assert_equal(self.nodes[1].getbalance("from0"), -(tx1["amount"] + tx2["amount"]))
|
|
else:
|
|
assert_equal(tx1["confirmations"], 0)
|
|
assert_equal(tx2["confirmations"], 0)
|
|
|
|
# Send clone and its parent to miner
|
|
self.nodes[2].sendrawtransaction(fund_foo_tx["hex"])
|
|
txid1_clone = self.nodes[2].sendrawtransaction(tx1_clone["hex"])
|
|
# ... mine a block...
|
|
self.nodes[2].generate(1)
|
|
|
|
# Reconnect the split network, and sync chain:
|
|
connect_nodes(self.nodes[1], 2)
|
|
self.nodes[2].sendrawtransaction(fund_bar_tx["hex"])
|
|
self.nodes[2].sendrawtransaction(tx2["hex"])
|
|
self.nodes[2].generate(1) # Mine another block to make sure we sync
|
|
sync_blocks(self.nodes)
|
|
|
|
# Re-fetch transaction info:
|
|
tx1 = self.nodes[0].gettransaction(txid1)
|
|
tx1_clone = self.nodes[0].gettransaction(txid1_clone)
|
|
tx2 = self.nodes[0].gettransaction(txid2)
|
|
|
|
# Verify expected confirmations
|
|
assert_equal(tx1["confirmations"], -2)
|
|
assert_equal(tx1_clone["confirmations"], 2)
|
|
assert_equal(tx2["confirmations"], 1)
|
|
|
|
# Check node0's total balance; should be same as before the clone, + 100 BTC for 2 matured,
|
|
# less possible orphaned matured subsidy
|
|
expected += 100
|
|
if (self.options.mine_block):
|
|
expected -= 50
|
|
assert_equal(self.nodes[0].getbalance(), expected)
|
|
assert_equal(self.nodes[0].getbalance("*", 0), expected)
|
|
|
|
# Check node0's individual account balances.
|
|
# "foo" should have been debited by the equivalent clone of tx1
|
|
assert_equal(self.nodes[0].getbalance("foo"), 1219 + tx1["amount"] + tx1["fee"])
|
|
# "bar" should have been debited by (possibly unconfirmed) tx2
|
|
assert_equal(self.nodes[0].getbalance("bar", 0), 29 + tx2["amount"] + tx2["fee"])
|
|
# "" should have starting balance, less funding txes, plus subsidies
|
|
assert_equal(self.nodes[0].getbalance("", 0), starting_balance
|
|
- 1219
|
|
+ fund_foo_tx["fee"]
|
|
- 29
|
|
+ fund_bar_tx["fee"]
|
|
+ 100)
|
|
|
|
# Node1's "from0" account balance
|
|
assert_equal(self.nodes[1].getbalance("from0", 0), -(tx1["amount"] + tx2["amount"]))
|
|
|
|
if __name__ == '__main__':
|
|
TxnMallTest().main()
|
|
|