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77 lines
3.3 KiB
77 lines
3.3 KiB
#!/usr/bin/env python3 |
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# Copyright (c) 2017 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.messages import CInv, msg_getdata, msg_verack |
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from test_framework.mininode import NODE_BLOOM, NODE_NETWORK_LIMITED, NODE_WITNESS, NetworkThread, P2PInterface |
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from test_framework.test_framework import BitcoinTestFramework |
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from test_framework.util import assert_equal |
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class BaseNode(P2PInterface): |
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nServices = 0 |
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def on_version(self, message): |
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self.nServices = message.nServices |
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class NodeNetworkLimitedTest(BitcoinTestFramework): |
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def set_test_params(self): |
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self.setup_clean_chain = True |
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self.num_nodes = 1 |
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self.extra_args = [['-prune=550']] |
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def get_signalled_service_flags(self): |
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node = self.nodes[0].add_p2p_connection(BaseNode()) |
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NetworkThread().start() |
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node.wait_for_verack() |
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services = node.nServices |
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self.nodes[0].disconnect_p2ps() |
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node.wait_for_disconnect() |
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return services |
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def try_get_block_via_getdata(self, blockhash, must_disconnect): |
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node = self.nodes[0].add_p2p_connection(BaseNode()) |
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NetworkThread().start() |
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node.wait_for_verack() |
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node.send_message(msg_verack()) |
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getdata_request = msg_getdata() |
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getdata_request.inv.append(CInv(2, int(blockhash, 16))) |
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node.send_message(getdata_request) |
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if (must_disconnect): |
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# Ensure we get disconnected |
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node.wait_for_disconnect(5) |
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else: |
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# check if the peer sends us the requested block |
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node.wait_for_block(int(blockhash, 16), 3) |
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self.nodes[0].disconnect_p2ps() |
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node.wait_for_disconnect() |
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def run_test(self): |
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# NODE_BLOOM & NODE_WITNESS & NODE_NETWORK_LIMITED must now be signaled |
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assert_equal(self.get_signalled_service_flags(), NODE_BLOOM | NODE_WITNESS | NODE_NETWORK_LIMITED) |
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# Now mine some blocks over the NODE_NETWORK_LIMITED + 2(racy buffer ext.) target |
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firstblock = self.nodes[0].generate(1)[0] |
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blocks = self.nodes[0].generate(292) |
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block_within_limited_range = blocks[-1] |
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# Make sure we can max retrive block at tip-288 |
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# requesting block at height 2 (tip-289) must fail (ignored) |
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self.try_get_block_via_getdata(firstblock, True) # first block must lead to disconnect |
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self.try_get_block_via_getdata(blocks[1], False) # last block in valid range |
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self.try_get_block_via_getdata(blocks[0], True) # first block outside of the 288+2 limit |
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# NODE_NETWORK_LIMITED must still be signaled after restart |
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self.restart_node(0) |
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assert_equal(self.get_signalled_service_flags(), NODE_BLOOM | NODE_WITNESS | NODE_NETWORK_LIMITED) |
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# Test the RPC service flags |
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assert_equal(int(self.nodes[0].getnetworkinfo()['localservices'], 16), NODE_BLOOM | NODE_WITNESS | NODE_NETWORK_LIMITED) |
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# getdata a block above the NODE_NETWORK_LIMITED threshold must be possible |
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self.try_get_block_via_getdata(block_within_limited_range, False) |
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# getdata a block below the NODE_NETWORK_LIMITED threshold must be ignored |
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self.try_get_block_via_getdata(firstblock, True) |
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if __name__ == '__main__': |
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NodeNetworkLimitedTest().main()
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