mirror of https://github.com/bitcoin/bitcoin.git
78 lines
2.3 KiB
Python
Executable File
78 lines
2.3 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2022 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""
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Test that transaction announcements are only queued for peers that have
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successfully completed the version handshake.
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Topology:
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tx_originator ----> node[0] <---- spy
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We test that a transaction sent by tx_originator is only relayed to spy
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if it was received after spy's version handshake completed.
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1. Fully connect tx_originator
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2. Connect spy (no version handshake)
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3. tx_originator sends tx1
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4. spy completes the version handshake
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5. tx_originator sends tx2
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6. We check that only tx2 is announced on the spy interface
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"""
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from test_framework.messages import (
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msg_wtxidrelay,
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msg_verack,
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msg_tx,
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CInv,
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MSG_WTX,
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)
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from test_framework.p2p import (
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P2PInterface,
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)
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.wallet import MiniWallet
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class P2PTxSpy(P2PInterface):
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def __init__(self):
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super().__init__()
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self.all_invs = []
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def on_version(self, message):
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self.send_message(msg_wtxidrelay())
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def on_inv(self, message):
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self.all_invs += message.inv
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def wait_for_inv_match(self, expected_inv):
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self.wait_until(lambda: len(self.all_invs) == 1 and self.all_invs[0] == expected_inv)
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class TxPrivacyTest(BitcoinTestFramework):
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def set_test_params(self):
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self.num_nodes = 1
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def run_test(self):
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self.wallet = MiniWallet(self.nodes[0])
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tx_originator = self.nodes[0].add_p2p_connection(P2PInterface())
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spy = self.nodes[0].add_p2p_connection(P2PTxSpy(), wait_for_verack=False)
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spy.wait_for_verack()
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# tx_originator sends tx1
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tx1 = self.wallet.create_self_transfer()["tx"]
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tx_originator.send_and_ping(msg_tx(tx1))
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# Spy sends the verack
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spy.send_and_ping(msg_verack())
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# tx_originator sends tx2
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tx2 = self.wallet.create_self_transfer()["tx"]
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tx_originator.send_and_ping(msg_tx(tx2))
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# Spy should only get an inv for the second transaction as the first
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# one was received pre-verack with the spy
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spy.wait_for_inv_match(CInv(MSG_WTX, tx2.calc_sha256(True)))
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if __name__ == '__main__':
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TxPrivacyTest().main()
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