git / moonbite-core / test/functional/p2p_leak_tx.py · raw

#!/usr/bin/env python3# Copyright (c) 2017-2020 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 that we don't leak txs to inbound peers that we haven't yet announced to"""from test_framework.messages import msg_getdata, CInv, MSG_TXfrom test_framework.p2p import p2p_lock, P2PDataStorefrom test_framework.test_framework import BitcoinTestFrameworkfrom test_framework.util import (    assert_equal,)from test_framework.wallet import MiniWalletclass P2PNode(P2PDataStore):    def on_inv(self, msg):        passclass P2PLeakTxTest(BitcoinTestFramework):    def set_test_params(self):        self.num_nodes = 1    def run_test(self):        gen_node = self.nodes[0]  # The block and tx generating node        miniwallet = MiniWallet(gen_node)        # Add enough mature utxos to the wallet, so that all txs spend confirmed coins        miniwallet.generate(1)        gen_node.generate(100)        inbound_peer = self.nodes[0].add_p2p_connection(P2PNode())  # An "attacking" inbound peer        MAX_REPEATS = 100        self.log.info("Running test up to {} times.".format(MAX_REPEATS))        for i in range(MAX_REPEATS):            self.log.info('Run repeat {}'.format(i + 1))            txid = miniwallet.send_self_transfer(from_node=gen_node)['wtxid']            want_tx = msg_getdata()            want_tx.inv.append(CInv(t=MSG_TX, h=int(txid, 16)))            with p2p_lock:                inbound_peer.last_message.pop('notfound', None)            inbound_peer.send_and_ping(want_tx)            if inbound_peer.last_message.get('notfound'):                self.log.debug('tx {} was not yet announced to us.'.format(txid))                self.log.debug("node has responded with a notfound message. End test.")                assert_equal(inbound_peer.last_message['notfound'].vec[0].hash, int(txid, 16))                with p2p_lock:                    inbound_peer.last_message.pop('notfound')                break            else:                self.log.debug('tx {} was already announced to us. Try test again.'.format(txid))                assert int(txid, 16) in [inv.hash for inv in inbound_peer.last_message['inv'].inv]if __name__ == '__main__':    P2PLeakTxTest().main()