be16f80abc
Any projects which want to use Hush code from now on will need to be licensed as GPLv3 or we will send the lawyers: https://www.softwarefreedom.org/ Notably, Komodo (KMD) is licensed as GPLv2 and is no longer compatible to receive code changes, without causing legal issues. MIT projects, such as Zcash, also cannot pull in changes from the Hush Full Node without permission from The Hush Developers, which may in some circumstances grant an MIT license on a case-by-case basis.
106 lines
4.6 KiB
Python
Executable File
106 lines
4.6 KiB
Python
Executable File
#!/usr/bin/env python2
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# Copyright (c) 2014 The Bitcoin Core developers
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# Distributed under the GPLv3 software license, see the accompanying
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# file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
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#
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# Test re-org scenarios with a mempool that contains transactions
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# that spend (directly or indirectly) coinbase transactions.
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#
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.authproxy import JSONRPCException
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from test_framework.util import assert_equal, assert_raises, start_node, connect_nodes
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# Create one-input, one-output, no-fee transaction:
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class MempoolCoinbaseTest(BitcoinTestFramework):
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alert_filename = None # Set by setup_network
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def setup_network(self):
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args = ["-checkmempool", "-debug=mempool"]
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self.nodes = []
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self.nodes.append(start_node(0, self.options.tmpdir, args))
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self.nodes.append(start_node(1, self.options.tmpdir, args))
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connect_nodes(self.nodes[1], 0)
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self.is_network_split = False
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self.sync_all
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def create_tx(self, from_txid, to_address, amount):
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inputs = [{ "txid" : from_txid, "vout" : 0}]
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outputs = { to_address : amount }
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rawtx = self.nodes[0].createrawtransaction(inputs, outputs)
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signresult = self.nodes[0].signrawtransaction(rawtx)
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assert_equal(signresult["complete"], True)
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return signresult["hex"]
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def run_test(self):
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# Mine three blocks. After this, nodes[0] blocks
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# 101, 102, and 103 are spend-able.
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new_blocks = self.nodes[1].generate(4)
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self.sync_all()
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node0_address = self.nodes[0].getnewaddress()
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node1_address = self.nodes[1].getnewaddress()
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# Three scenarios for re-orging coinbase spends in the memory pool:
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# 1. Direct coinbase spend : spend_101
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# 2. Indirect (coinbase spend in chain, child in mempool) : spend_102 and spend_102_1
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# 3. Indirect (coinbase and child both in chain) : spend_103 and spend_103_1
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# Use invalidatblock to make all of the above coinbase spends invalid (immature coinbase),
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# and make sure the mempool code behaves correctly.
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b = [ self.nodes[0].getblockhash(n) for n in range(101, 105) ]
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coinbase_txids = [ self.nodes[0].getblock(h)['tx'][0] for h in b ]
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spend_101_raw = self.create_tx(coinbase_txids[1], node1_address, 10)
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spend_102_raw = self.create_tx(coinbase_txids[2], node0_address, 10)
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spend_103_raw = self.create_tx(coinbase_txids[3], node0_address, 10)
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# Create a block-height-locked transaction which will be invalid after reorg
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timelock_tx = self.nodes[0].createrawtransaction([{"txid": coinbase_txids[0], "vout": 0}], {node0_address: 10})
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# Set the time lock
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timelock_tx = timelock_tx.replace("ffffffff", "11111111", 1)
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timelock_tx = timelock_tx[:-8] + hex(self.nodes[0].getblockcount() + 2)[2:] + "000000"
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timelock_tx = self.nodes[0].signrawtransaction(timelock_tx)["hex"]
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assert_raises(JSONRPCException, self.nodes[0].sendrawtransaction, timelock_tx)
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# Broadcast and mine spend_102 and 103:
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spend_102_id = self.nodes[0].sendrawtransaction(spend_102_raw)
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spend_103_id = self.nodes[0].sendrawtransaction(spend_103_raw)
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self.nodes[0].generate(1)
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assert_raises(JSONRPCException, self.nodes[0].sendrawtransaction, timelock_tx)
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# Create 102_1 and 103_1:
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spend_102_1_raw = self.create_tx(spend_102_id, node1_address, 10)
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spend_103_1_raw = self.create_tx(spend_103_id, node1_address, 10)
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# Broadcast and mine 103_1:
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spend_103_1_id = self.nodes[0].sendrawtransaction(spend_103_1_raw)
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last_block = self.nodes[0].generate(1)
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timelock_tx_id = self.nodes[0].sendrawtransaction(timelock_tx)
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# ... now put spend_101 and spend_102_1 in memory pools:
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spend_101_id = self.nodes[0].sendrawtransaction(spend_101_raw)
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spend_102_1_id = self.nodes[0].sendrawtransaction(spend_102_1_raw)
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self.sync_all()
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assert_equal(set(self.nodes[0].getrawmempool()), set([ spend_101_id, spend_102_1_id, timelock_tx_id ]))
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for node in self.nodes:
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node.invalidateblock(last_block[0])
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assert_equal(set(self.nodes[0].getrawmempool()), set([ spend_101_id, spend_102_1_id, spend_103_1_id ]))
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# Use invalidateblock to re-org back and make all those coinbase spends
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# immature/invalid:
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for node in self.nodes:
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node.invalidateblock(new_blocks[0])
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self.sync_all()
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# mempool should be empty.
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assert_equal(set(self.nodes[0].getrawmempool()), set())
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if __name__ == '__main__':
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MempoolCoinbaseTest().main()
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