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108 lines
4.5 KiB
108 lines
4.5 KiB
#!/usr/bin/env python3
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# Copyright (c) 2017-2021 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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"""Test transaction upload"""
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from test_framework.messages import msg_getdata, CInv, MSG_TX, MSG_WTX
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from test_framework.p2p import p2p_lock, P2PDataStore, P2PTxInvStore
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import (
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assert_equal,
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)
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from test_framework.wallet import MiniWallet
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class P2PNode(P2PDataStore):
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def on_inv(self, msg):
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pass
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class P2PLeakTxTest(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.gen_node = self.nodes[0] # The block and tx generating node
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self.miniwallet = MiniWallet(self.gen_node)
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self.test_tx_in_block()
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self.test_notfound_on_replaced_tx()
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self.test_notfound_on_unannounced_tx()
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def test_tx_in_block(self):
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self.log.info("Check that a transaction in the last block is uploaded (beneficial for compact block relay)")
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inbound_peer = self.gen_node.add_p2p_connection(P2PNode())
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self.log.debug("Generate transaction and block")
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inbound_peer.last_message.pop("inv", None)
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wtxid = self.miniwallet.send_self_transfer(from_node=self.gen_node)["wtxid"]
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inbound_peer.wait_until(lambda: "inv" in inbound_peer.last_message and inbound_peer.last_message.get("inv").inv[0].hash == int(wtxid, 16))
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want_tx = msg_getdata(inv=inbound_peer.last_message.get("inv").inv)
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self.generate(self.gen_node, 1)
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self.log.debug("Request transaction")
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inbound_peer.last_message.pop("tx", None)
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inbound_peer.send_and_ping(want_tx)
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assert_equal(inbound_peer.last_message.get("tx").tx.getwtxid(), wtxid)
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def test_notfound_on_replaced_tx(self):
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self.gen_node.disconnect_p2ps()
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inbound_peer = self.gen_node.add_p2p_connection(P2PTxInvStore())
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self.log.info("Transaction tx_a is broadcast")
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tx_a = self.miniwallet.send_self_transfer(from_node=self.gen_node)
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inbound_peer.wait_for_broadcast(txns=[tx_a["wtxid"]])
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tx_b = tx_a["tx"]
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tx_b.vout[0].nValue -= 9000
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self.gen_node.sendrawtransaction(tx_b.serialize().hex())
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inbound_peer.wait_until(lambda: "tx" in inbound_peer.last_message and inbound_peer.last_message.get("tx").tx.getwtxid() == tx_b.getwtxid())
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self.log.info("Re-request of tx_a after replacement is answered with notfound")
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req_vec = [
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CInv(t=MSG_TX, h=int(tx_a["txid"], 16)),
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CInv(t=MSG_WTX, h=int(tx_a["wtxid"], 16)),
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]
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want_tx = msg_getdata()
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want_tx.inv = req_vec
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with p2p_lock:
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inbound_peer.last_message.pop("notfound", None)
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inbound_peer.last_message.pop("tx", None)
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inbound_peer.send_and_ping(want_tx)
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assert_equal(inbound_peer.last_message.get("notfound").vec, req_vec)
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assert "tx" not in inbound_peer.last_message
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def test_notfound_on_unannounced_tx(self):
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self.log.info("Check that we don't leak txs to inbound peers that we haven't yet announced to")
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self.gen_node.disconnect_p2ps()
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inbound_peer = self.gen_node.add_p2p_connection(P2PNode()) # An "attacking" inbound peer
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MAX_REPEATS = 100
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self.log.info("Running test up to {} times.".format(MAX_REPEATS))
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for i in range(MAX_REPEATS):
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self.log.info('Run repeat {}'.format(i + 1))
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txid = self.miniwallet.send_self_transfer(from_node=self.gen_node)["wtxid"]
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want_tx = msg_getdata()
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want_tx.inv.append(CInv(t=MSG_TX, h=int(txid, 16)))
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with p2p_lock:
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inbound_peer.last_message.pop('notfound', None)
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inbound_peer.send_and_ping(want_tx)
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if inbound_peer.last_message.get('notfound'):
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self.log.debug('tx {} was not yet announced to us.'.format(txid))
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self.log.debug("node has responded with a notfound message. End test.")
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assert_equal(inbound_peer.last_message['notfound'].vec[0].hash, int(txid, 16))
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with p2p_lock:
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inbound_peer.last_message.pop('notfound')
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break
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else:
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self.log.debug('tx {} was already announced to us. Try test again.'.format(txid))
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assert int(txid, 16) in [inv.hash for inv in inbound_peer.last_message['inv'].inv]
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if __name__ == '__main__':
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P2PLeakTxTest(__file__).main()
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