626 lines
27 KiB
Python
Executable file
626 lines
27 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright (c) 2016 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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from test_framework.mininode import *
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import *
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from test_framework.blocktools import create_block, create_coinbase
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from test_framework.siphash import siphash256
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from test_framework.script import CScript, OP_TRUE
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'''
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CompactBlocksTest -- test compact blocks (BIP 152)
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'''
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# TestNode: A peer we use to send messages to bitcoind, and store responses.
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class TestNode(SingleNodeConnCB):
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def __init__(self):
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SingleNodeConnCB.__init__(self)
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self.last_sendcmpct = None
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self.last_headers = None
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self.last_inv = None
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self.last_cmpctblock = None
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self.block_announced = False
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self.last_getdata = None
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self.last_getblocktxn = None
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self.last_block = None
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self.last_blocktxn = None
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def on_sendcmpct(self, conn, message):
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self.last_sendcmpct = message
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def on_block(self, conn, message):
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self.last_block = message
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def on_cmpctblock(self, conn, message):
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self.last_cmpctblock = message
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self.block_announced = True
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def on_headers(self, conn, message):
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self.last_headers = message
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self.block_announced = True
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def on_inv(self, conn, message):
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self.last_inv = message
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self.block_announced = True
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def on_getdata(self, conn, message):
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self.last_getdata = message
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def on_getblocktxn(self, conn, message):
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self.last_getblocktxn = message
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def on_blocktxn(self, conn, message):
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self.last_blocktxn = message
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# Requires caller to hold mininode_lock
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def received_block_announcement(self):
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return self.block_announced
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def clear_block_announcement(self):
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with mininode_lock:
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self.block_announced = False
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self.last_inv = None
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self.last_headers = None
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self.last_cmpctblock = None
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def get_headers(self, locator, hashstop):
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msg = msg_getheaders()
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msg.locator.vHave = locator
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msg.hashstop = hashstop
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self.connection.send_message(msg)
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def send_header_for_blocks(self, new_blocks):
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headers_message = msg_headers()
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headers_message.headers = [CBlockHeader(b) for b in new_blocks]
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self.send_message(headers_message)
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def request_headers_and_sync(self, locator, hashstop=0):
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self.clear_block_announcement()
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self.get_headers(locator, hashstop)
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assert(wait_until(self.received_block_announcement, timeout=30))
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assert(self.received_block_announcement())
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self.clear_block_announcement()
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class CompactBlocksTest(BitcoinTestFramework):
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def __init__(self):
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super().__init__()
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self.setup_clean_chain = True
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self.num_nodes = 1
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self.utxos = []
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def setup_network(self):
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self.nodes = []
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# Turn off segwit in this test, as compact blocks don't currently work
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# with segwit. (After BIP 152 is updated to support segwit, we can
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# test behavior with and without segwit enabled by adding a second node
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# to the test.)
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self.nodes = start_nodes(self.num_nodes, self.options.tmpdir, [["-debug", "-logtimemicros=1", "-bip9params=segwit:0:0"]])
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def build_block_on_tip(self):
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height = self.nodes[0].getblockcount()
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tip = self.nodes[0].getbestblockhash()
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mtp = self.nodes[0].getblockheader(tip)['mediantime']
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block = create_block(int(tip, 16), create_coinbase(height + 1), mtp + 1)
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block.solve()
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return block
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# Create 10 more anyone-can-spend utxo's for testing.
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def make_utxos(self):
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block = self.build_block_on_tip()
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self.test_node.send_and_ping(msg_block(block))
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assert(int(self.nodes[0].getbestblockhash(), 16) == block.sha256)
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self.nodes[0].generate(100)
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total_value = block.vtx[0].vout[0].nValue
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out_value = total_value // 10
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tx = CTransaction()
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tx.vin.append(CTxIn(COutPoint(block.vtx[0].sha256, 0), b''))
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for i in range(10):
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tx.vout.append(CTxOut(out_value, CScript([OP_TRUE])))
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tx.rehash()
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block2 = self.build_block_on_tip()
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block2.vtx.append(tx)
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block2.hashMerkleRoot = block2.calc_merkle_root()
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block2.solve()
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self.test_node.send_and_ping(msg_block(block2))
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assert_equal(int(self.nodes[0].getbestblockhash(), 16), block2.sha256)
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self.utxos.extend([[tx.sha256, i, out_value] for i in range(10)])
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return
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# Test "sendcmpct":
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# - No compact block announcements or getdata(MSG_CMPCT_BLOCK) unless
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# sendcmpct is sent.
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# - If sendcmpct is sent with version > 1, the message is ignored.
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# - If sendcmpct is sent with boolean 0, then block announcements are not
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# made with compact blocks.
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# - If sendcmpct is then sent with boolean 1, then new block announcements
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# are made with compact blocks.
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def test_sendcmpct(self):
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print("Testing SENDCMPCT p2p message... ")
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# Make sure we get a version 0 SENDCMPCT message from our peer
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def received_sendcmpct():
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return (self.test_node.last_sendcmpct is not None)
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got_message = wait_until(received_sendcmpct, timeout=30)
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assert(received_sendcmpct())
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assert(got_message)
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assert_equal(self.test_node.last_sendcmpct.version, 1)
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tip = int(self.nodes[0].getbestblockhash(), 16)
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def check_announcement_of_new_block(node, peer, predicate):
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peer.clear_block_announcement()
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node.generate(1)
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got_message = wait_until(lambda: peer.block_announced, timeout=30)
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assert(peer.block_announced)
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assert(got_message)
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with mininode_lock:
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assert(predicate(peer))
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# We shouldn't get any block announcements via cmpctblock yet.
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check_announcement_of_new_block(self.nodes[0], self.test_node, lambda p: p.last_cmpctblock is None)
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# Try one more time, this time after requesting headers.
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self.test_node.request_headers_and_sync(locator=[tip])
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check_announcement_of_new_block(self.nodes[0], self.test_node, lambda p: p.last_cmpctblock is None and p.last_inv is not None)
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# Test a few ways of using sendcmpct that should NOT
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# result in compact block announcements.
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# Before each test, sync the headers chain.
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self.test_node.request_headers_and_sync(locator=[tip])
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# Now try a SENDCMPCT message with too-high version
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sendcmpct = msg_sendcmpct()
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sendcmpct.version = 2
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self.test_node.send_and_ping(sendcmpct)
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check_announcement_of_new_block(self.nodes[0], self.test_node, lambda p: p.last_cmpctblock is None)
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# Headers sync before next test.
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self.test_node.request_headers_and_sync(locator=[tip])
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# Now try a SENDCMPCT message with valid version, but announce=False
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self.test_node.send_and_ping(msg_sendcmpct())
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check_announcement_of_new_block(self.nodes[0], self.test_node, lambda p: p.last_cmpctblock is None)
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# Headers sync before next test.
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self.test_node.request_headers_and_sync(locator=[tip])
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# Finally, try a SENDCMPCT message with announce=True
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sendcmpct.version = 1
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sendcmpct.announce = True
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self.test_node.send_and_ping(sendcmpct)
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check_announcement_of_new_block(self.nodes[0], self.test_node, lambda p: p.last_cmpctblock is not None)
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# Try one more time (no headers sync should be needed!)
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check_announcement_of_new_block(self.nodes[0], self.test_node, lambda p: p.last_cmpctblock is not None)
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# Try one more time, after turning on sendheaders
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self.test_node.send_and_ping(msg_sendheaders())
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check_announcement_of_new_block(self.nodes[0], self.test_node, lambda p: p.last_cmpctblock is not None)
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# Now turn off announcements
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sendcmpct.announce = False
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self.test_node.send_and_ping(sendcmpct)
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check_announcement_of_new_block(self.nodes[0], self.test_node, lambda p: p.last_cmpctblock is None and p.last_headers is not None)
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# This test actually causes bitcoind to (reasonably!) disconnect us, so do this last.
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def test_invalid_cmpctblock_message(self):
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print("Testing invalid index in cmpctblock message...")
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self.nodes[0].generate(101)
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block = self.build_block_on_tip()
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cmpct_block = P2PHeaderAndShortIDs()
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cmpct_block.header = CBlockHeader(block)
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cmpct_block.prefilled_txn_length = 1
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# This index will be too high
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prefilled_txn = PrefilledTransaction(1, block.vtx[0])
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cmpct_block.prefilled_txn = [prefilled_txn]
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self.test_node.send_and_ping(msg_cmpctblock(cmpct_block))
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assert(int(self.nodes[0].getbestblockhash(), 16) == block.hashPrevBlock)
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# Compare the generated shortids to what we expect based on BIP 152, given
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# bitcoind's choice of nonce.
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def test_compactblock_construction(self):
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print("Testing compactblock headers and shortIDs are correct...")
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# Generate a bunch of transactions.
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self.nodes[0].generate(101)
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num_transactions = 25
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address = self.nodes[0].getnewaddress()
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for i in range(num_transactions):
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self.nodes[0].sendtoaddress(address, 0.1)
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self.test_node.sync_with_ping()
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# Now mine a block, and look at the resulting compact block.
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self.test_node.clear_block_announcement()
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block_hash = int(self.nodes[0].generate(1)[0], 16)
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# Store the raw block in our internal format.
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block = FromHex(CBlock(), self.nodes[0].getblock("%02x" % block_hash, False))
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[tx.calc_sha256() for tx in block.vtx]
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block.rehash()
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# Don't care which type of announcement came back for this test; just
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# request the compact block if we didn't get one yet.
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wait_until(self.test_node.received_block_announcement, timeout=30)
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with mininode_lock:
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if self.test_node.last_cmpctblock is None:
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self.test_node.clear_block_announcement()
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inv = CInv(4, block_hash) # 4 == "CompactBlock"
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self.test_node.send_message(msg_getdata([inv]))
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wait_until(self.test_node.received_block_announcement, timeout=30)
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# Now we should have the compactblock
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header_and_shortids = None
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with mininode_lock:
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assert(self.test_node.last_cmpctblock is not None)
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# Convert the on-the-wire representation to absolute indexes
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header_and_shortids = HeaderAndShortIDs(self.test_node.last_cmpctblock.header_and_shortids)
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# Check that we got the right block!
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header_and_shortids.header.calc_sha256()
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assert_equal(header_and_shortids.header.sha256, block_hash)
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# Make sure the prefilled_txn appears to have included the coinbase
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assert(len(header_and_shortids.prefilled_txn) >= 1)
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assert_equal(header_and_shortids.prefilled_txn[0].index, 0)
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# Check that all prefilled_txn entries match what's in the block.
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for entry in header_and_shortids.prefilled_txn:
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entry.tx.calc_sha256()
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assert_equal(entry.tx.sha256, block.vtx[entry.index].sha256)
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# Check that the cmpctblock message announced all the transactions.
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assert_equal(len(header_and_shortids.prefilled_txn) + len(header_and_shortids.shortids), len(block.vtx))
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# And now check that all the shortids are as expected as well.
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# Determine the siphash keys to use.
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[k0, k1] = header_and_shortids.get_siphash_keys()
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index = 0
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while index < len(block.vtx):
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if (len(header_and_shortids.prefilled_txn) > 0 and
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header_and_shortids.prefilled_txn[0].index == index):
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# Already checked prefilled transactions above
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header_and_shortids.prefilled_txn.pop(0)
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else:
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shortid = calculate_shortid(k0, k1, block.vtx[index].sha256)
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assert_equal(shortid, header_and_shortids.shortids[0])
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header_and_shortids.shortids.pop(0)
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index += 1
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# Test that bitcoind requests compact blocks when we announce new blocks
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# via header or inv, and that responding to getblocktxn causes the block
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# to be successfully reconstructed.
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def test_compactblock_requests(self):
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print("Testing compactblock requests... ")
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# Try announcing a block with an inv or header, expect a compactblock
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# request
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for announce in ["inv", "header"]:
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block = self.build_block_on_tip()
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with mininode_lock:
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self.test_node.last_getdata = None
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if announce == "inv":
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self.test_node.send_message(msg_inv([CInv(2, block.sha256)]))
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else:
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self.test_node.send_header_for_blocks([block])
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success = wait_until(lambda: self.test_node.last_getdata is not None, timeout=30)
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assert(success)
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assert_equal(len(self.test_node.last_getdata.inv), 1)
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assert_equal(self.test_node.last_getdata.inv[0].type, 4)
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assert_equal(self.test_node.last_getdata.inv[0].hash, block.sha256)
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# Send back a compactblock message that omits the coinbase
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comp_block = HeaderAndShortIDs()
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comp_block.header = CBlockHeader(block)
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comp_block.nonce = 0
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comp_block.shortids = [1] # this is useless, and wrong
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self.test_node.send_and_ping(msg_cmpctblock(comp_block.to_p2p()))
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assert_equal(int(self.nodes[0].getbestblockhash(), 16), block.hashPrevBlock)
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# Expect a getblocktxn message.
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with mininode_lock:
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assert(self.test_node.last_getblocktxn is not None)
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absolute_indexes = self.test_node.last_getblocktxn.block_txn_request.to_absolute()
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assert_equal(absolute_indexes, [0]) # should be a coinbase request
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# Send the coinbase, and verify that the tip advances.
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msg = msg_blocktxn()
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msg.block_transactions.blockhash = block.sha256
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msg.block_transactions.transactions = [block.vtx[0]]
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self.test_node.send_and_ping(msg)
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assert_equal(int(self.nodes[0].getbestblockhash(), 16), block.sha256)
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# Create a chain of transactions from given utxo, and add to a new block.
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def build_block_with_transactions(self, utxo, num_transactions):
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block = self.build_block_on_tip()
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for i in range(num_transactions):
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tx = CTransaction()
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tx.vin.append(CTxIn(COutPoint(utxo[0], utxo[1]), b''))
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tx.vout.append(CTxOut(utxo[2] - 1000, CScript([OP_TRUE])))
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tx.rehash()
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utxo = [tx.sha256, 0, tx.vout[0].nValue]
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block.vtx.append(tx)
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block.hashMerkleRoot = block.calc_merkle_root()
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block.solve()
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return block
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# Test that we only receive getblocktxn requests for transactions that the
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# node needs, and that responding to them causes the block to be
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# reconstructed.
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def test_getblocktxn_requests(self):
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print("Testing getblocktxn requests...")
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# First try announcing compactblocks that won't reconstruct, and verify
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# that we receive getblocktxn messages back.
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utxo = self.utxos.pop(0)
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block = self.build_block_with_transactions(utxo, 5)
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self.utxos.append([block.vtx[-1].sha256, 0, block.vtx[-1].vout[0].nValue])
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comp_block = HeaderAndShortIDs()
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comp_block.initialize_from_block(block)
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self.test_node.send_and_ping(msg_cmpctblock(comp_block.to_p2p()))
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with mininode_lock:
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assert(self.test_node.last_getblocktxn is not None)
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absolute_indexes = self.test_node.last_getblocktxn.block_txn_request.to_absolute()
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assert_equal(absolute_indexes, [1, 2, 3, 4, 5])
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msg = msg_blocktxn()
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msg.block_transactions = BlockTransactions(block.sha256, block.vtx[1:])
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self.test_node.send_and_ping(msg)
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assert_equal(int(self.nodes[0].getbestblockhash(), 16), block.sha256)
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utxo = self.utxos.pop(0)
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block = self.build_block_with_transactions(utxo, 5)
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self.utxos.append([block.vtx[-1].sha256, 0, block.vtx[-1].vout[0].nValue])
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# Now try interspersing the prefilled transactions
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comp_block.initialize_from_block(block, prefill_list=[0, 1, 5])
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self.test_node.send_and_ping(msg_cmpctblock(comp_block.to_p2p()))
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with mininode_lock:
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assert(self.test_node.last_getblocktxn is not None)
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absolute_indexes = self.test_node.last_getblocktxn.block_txn_request.to_absolute()
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assert_equal(absolute_indexes, [2, 3, 4])
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msg.block_transactions = BlockTransactions(block.sha256, block.vtx[2:5])
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self.test_node.send_and_ping(msg)
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assert_equal(int(self.nodes[0].getbestblockhash(), 16), block.sha256)
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# Now try giving one transaction ahead of time.
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utxo = self.utxos.pop(0)
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block = self.build_block_with_transactions(utxo, 5)
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self.utxos.append([block.vtx[-1].sha256, 0, block.vtx[-1].vout[0].nValue])
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self.test_node.send_and_ping(msg_tx(block.vtx[1]))
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assert(block.vtx[1].hash in self.nodes[0].getrawmempool())
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# Prefill 4 out of the 6 transactions, and verify that only the one
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# that was not in the mempool is requested.
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comp_block.initialize_from_block(block, prefill_list=[0, 2, 3, 4])
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self.test_node.send_and_ping(msg_cmpctblock(comp_block.to_p2p()))
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with mininode_lock:
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assert(self.test_node.last_getblocktxn is not None)
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absolute_indexes = self.test_node.last_getblocktxn.block_txn_request.to_absolute()
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assert_equal(absolute_indexes, [5])
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msg.block_transactions = BlockTransactions(block.sha256, [block.vtx[5]])
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self.test_node.send_and_ping(msg)
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assert_equal(int(self.nodes[0].getbestblockhash(), 16), block.sha256)
|
|
|
|
# Now provide all transactions to the node before the block is
|
|
# announced and verify reconstruction happens immediately.
|
|
utxo = self.utxos.pop(0)
|
|
block = self.build_block_with_transactions(utxo, 10)
|
|
self.utxos.append([block.vtx[-1].sha256, 0, block.vtx[-1].vout[0].nValue])
|
|
for tx in block.vtx[1:]:
|
|
self.test_node.send_message(msg_tx(tx))
|
|
self.test_node.sync_with_ping()
|
|
# Make sure all transactions were accepted.
|
|
mempool = self.nodes[0].getrawmempool()
|
|
for tx in block.vtx[1:]:
|
|
assert(tx.hash in mempool)
|
|
|
|
# Clear out last request.
|
|
with mininode_lock:
|
|
self.test_node.last_getblocktxn = None
|
|
|
|
# Send compact block
|
|
comp_block.initialize_from_block(block, prefill_list=[0])
|
|
self.test_node.send_and_ping(msg_cmpctblock(comp_block.to_p2p()))
|
|
with mininode_lock:
|
|
# Shouldn't have gotten a request for any transaction
|
|
assert(self.test_node.last_getblocktxn is None)
|
|
# Tip should have updated
|
|
assert_equal(int(self.nodes[0].getbestblockhash(), 16), block.sha256)
|
|
|
|
# Incorrectly responding to a getblocktxn shouldn't cause the block to be
|
|
# permanently failed.
|
|
def test_incorrect_blocktxn_response(self):
|
|
print("Testing handling of incorrect blocktxn responses...")
|
|
|
|
if (len(self.utxos) == 0):
|
|
self.make_utxos()
|
|
utxo = self.utxos.pop(0)
|
|
|
|
block = self.build_block_with_transactions(utxo, 10)
|
|
self.utxos.append([block.vtx[-1].sha256, 0, block.vtx[-1].vout[0].nValue])
|
|
# Relay the first 5 transactions from the block in advance
|
|
for tx in block.vtx[1:6]:
|
|
self.test_node.send_message(msg_tx(tx))
|
|
self.test_node.sync_with_ping()
|
|
# Make sure all transactions were accepted.
|
|
mempool = self.nodes[0].getrawmempool()
|
|
for tx in block.vtx[1:6]:
|
|
assert(tx.hash in mempool)
|
|
|
|
# Send compact block
|
|
comp_block = HeaderAndShortIDs()
|
|
comp_block.initialize_from_block(block, prefill_list=[0])
|
|
self.test_node.send_and_ping(msg_cmpctblock(comp_block.to_p2p()))
|
|
absolute_indexes = []
|
|
with mininode_lock:
|
|
assert(self.test_node.last_getblocktxn is not None)
|
|
absolute_indexes = self.test_node.last_getblocktxn.block_txn_request.to_absolute()
|
|
assert_equal(absolute_indexes, [6, 7, 8, 9, 10])
|
|
|
|
# Now give an incorrect response.
|
|
# Note that it's possible for bitcoind to be smart enough to know we're
|
|
# lying, since it could check to see if the shortid matches what we're
|
|
# sending, and eg disconnect us for misbehavior. If that behavior
|
|
# change were made, we could just modify this test by having a
|
|
# different peer provide the block further down, so that we're still
|
|
# verifying that the block isn't marked bad permanently. This is good
|
|
# enough for now.
|
|
msg = msg_blocktxn()
|
|
msg.block_transactions = BlockTransactions(block.sha256, [block.vtx[5]] + block.vtx[7:])
|
|
self.test_node.send_and_ping(msg)
|
|
|
|
# Tip should not have updated
|
|
assert_equal(int(self.nodes[0].getbestblockhash(), 16), block.hashPrevBlock)
|
|
|
|
# We should receive a getdata request
|
|
success = wait_until(lambda: self.test_node.last_getdata is not None, timeout=10)
|
|
assert(success)
|
|
assert_equal(len(self.test_node.last_getdata.inv), 1)
|
|
assert_equal(self.test_node.last_getdata.inv[0].type, 2)
|
|
assert_equal(self.test_node.last_getdata.inv[0].hash, block.sha256)
|
|
|
|
# Deliver the block
|
|
self.test_node.send_and_ping(msg_block(block))
|
|
assert_equal(int(self.nodes[0].getbestblockhash(), 16), block.sha256)
|
|
|
|
def test_getblocktxn_handler(self):
|
|
print("Testing getblocktxn handler...")
|
|
|
|
# bitcoind won't respond for blocks whose height is more than 15 blocks
|
|
# deep.
|
|
MAX_GETBLOCKTXN_DEPTH = 15
|
|
chain_height = self.nodes[0].getblockcount()
|
|
current_height = chain_height
|
|
while (current_height >= chain_height - MAX_GETBLOCKTXN_DEPTH):
|
|
block_hash = self.nodes[0].getblockhash(current_height)
|
|
block = FromHex(CBlock(), self.nodes[0].getblock(block_hash, False))
|
|
|
|
msg = msg_getblocktxn()
|
|
msg.block_txn_request = BlockTransactionsRequest(int(block_hash, 16), [])
|
|
num_to_request = random.randint(1, len(block.vtx))
|
|
msg.block_txn_request.from_absolute(sorted(random.sample(range(len(block.vtx)), num_to_request)))
|
|
self.test_node.send_message(msg)
|
|
success = wait_until(lambda: self.test_node.last_blocktxn is not None, timeout=10)
|
|
assert(success)
|
|
|
|
[tx.calc_sha256() for tx in block.vtx]
|
|
with mininode_lock:
|
|
assert_equal(self.test_node.last_blocktxn.block_transactions.blockhash, int(block_hash, 16))
|
|
all_indices = msg.block_txn_request.to_absolute()
|
|
for index in all_indices:
|
|
tx = self.test_node.last_blocktxn.block_transactions.transactions.pop(0)
|
|
tx.calc_sha256()
|
|
assert_equal(tx.sha256, block.vtx[index].sha256)
|
|
self.test_node.last_blocktxn = None
|
|
current_height -= 1
|
|
|
|
# Next request should be ignored, as we're past the allowed depth.
|
|
block_hash = self.nodes[0].getblockhash(current_height)
|
|
msg.block_txn_request = BlockTransactionsRequest(int(block_hash, 16), [0])
|
|
self.test_node.send_and_ping(msg)
|
|
with mininode_lock:
|
|
assert_equal(self.test_node.last_blocktxn, None)
|
|
|
|
def test_compactblocks_not_at_tip(self):
|
|
print("Testing compactblock requests/announcements not at chain tip...")
|
|
|
|
# Test that requesting old compactblocks doesn't work.
|
|
MAX_CMPCTBLOCK_DEPTH = 11
|
|
new_blocks = []
|
|
for i in range(MAX_CMPCTBLOCK_DEPTH):
|
|
self.test_node.clear_block_announcement()
|
|
new_blocks.append(self.nodes[0].generate(1)[0])
|
|
wait_until(self.test_node.received_block_announcement, timeout=30)
|
|
|
|
self.test_node.clear_block_announcement()
|
|
self.test_node.send_message(msg_getdata([CInv(4, int(new_blocks[0], 16))]))
|
|
success = wait_until(lambda: self.test_node.last_cmpctblock is not None, timeout=30)
|
|
assert(success)
|
|
|
|
self.test_node.clear_block_announcement()
|
|
self.nodes[0].generate(1)
|
|
wait_until(self.test_node.received_block_announcement, timeout=30)
|
|
self.test_node.clear_block_announcement()
|
|
self.test_node.send_message(msg_getdata([CInv(4, int(new_blocks[0], 16))]))
|
|
success = wait_until(lambda: self.test_node.last_block is not None, timeout=30)
|
|
assert(success)
|
|
with mininode_lock:
|
|
self.test_node.last_block.block.calc_sha256()
|
|
assert_equal(self.test_node.last_block.block.sha256, int(new_blocks[0], 16))
|
|
|
|
# Generate an old compactblock, and verify that it's not accepted.
|
|
cur_height = self.nodes[0].getblockcount()
|
|
hashPrevBlock = int(self.nodes[0].getblockhash(cur_height-5), 16)
|
|
block = self.build_block_on_tip()
|
|
block.hashPrevBlock = hashPrevBlock
|
|
block.solve()
|
|
|
|
comp_block = HeaderAndShortIDs()
|
|
comp_block.initialize_from_block(block)
|
|
self.test_node.send_and_ping(msg_cmpctblock(comp_block.to_p2p()))
|
|
|
|
tips = self.nodes[0].getchaintips()
|
|
found = False
|
|
for x in tips:
|
|
if x["hash"] == block.hash:
|
|
assert_equal(x["status"], "headers-only")
|
|
found = True
|
|
break
|
|
assert(found)
|
|
|
|
# Requesting this block via getblocktxn should silently fail
|
|
# (to avoid fingerprinting attacks).
|
|
msg = msg_getblocktxn()
|
|
msg.block_txn_request = BlockTransactionsRequest(block.sha256, [0])
|
|
with mininode_lock:
|
|
self.test_node.last_blocktxn = None
|
|
self.test_node.send_and_ping(msg)
|
|
with mininode_lock:
|
|
assert(self.test_node.last_blocktxn is None)
|
|
|
|
def run_test(self):
|
|
# Setup the p2p connections and start up the network thread.
|
|
self.test_node = TestNode()
|
|
|
|
connections = []
|
|
connections.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], self.test_node))
|
|
self.test_node.add_connection(connections[0])
|
|
|
|
NetworkThread().start() # Start up network handling in another thread
|
|
|
|
# Test logic begins here
|
|
self.test_node.wait_for_verack()
|
|
|
|
# We will need UTXOs to construct transactions in later tests.
|
|
self.make_utxos()
|
|
|
|
self.test_sendcmpct()
|
|
self.test_compactblock_construction()
|
|
self.test_compactblock_requests()
|
|
self.test_getblocktxn_requests()
|
|
self.test_getblocktxn_handler()
|
|
self.test_compactblocks_not_at_tip()
|
|
self.test_incorrect_blocktxn_response()
|
|
self.test_invalid_cmpctblock_message()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
CompactBlocksTest().main()
|