SashegDev
874b6f20c2
Основа — Horizon (MIT). История апстрима не переносится: этот репозиторий ведёт свою.
49 lines
2.2 KiB
Python
49 lines
2.2 KiB
Python
#!/usr/bin/env python3
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"""LAN world discovery against the pinned client's LanServerPinger and
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LanServerDetection: the announcement an opened world multicasts
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(`[MOTD]...[/MOTD][AD]port[/AD]` in UTF-8), and how the multiplayer screen
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parses what it hears (parseMotd, parseAddress, UTF-8 decoding of malformed
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bytes) and keeps its list (LanServerList.addServer: one entry per
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address, the first MOTD kept, never expired while the screen is open).
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VanillaLanOracle and the `lan_probe` example must print the same lines."""
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import random
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try:
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from . import oracle_harness as oh
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except ImportError:
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import oracle_harness as oh
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NAME = 'lan-parity'
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def make_input(build):
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rng = random.Random(4445)
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lines = []
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motds = ['Player - New World', 'Steve - §aGreen §lWorld', 'été 日本語 ✓', '', '[MOTD]', 'a[/MOTD]b', 'x' * 300,
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'tab\\there', '[AD]25565[/AD]']
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for motd in motds:
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for port in ['25565', '1024', '65535', '0', 'abc', '']:
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lines.append(f'ping\t{motd}\t{port}')
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fragments = [b'[MOTD]', b'[/MOTD]', b'[AD]', b'[/AD]', b'25565', b'1234', b'Steve - World', b'\xc3\xa9', b'\xe6\x97',
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b'\xff', b'\xc0\x80', b'\xed\xa0\x80', b'\xf0\x9f\x98\x80', b'\xf0\x9f', b'abc', b' ', b'\x00', b'-1']
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ips = ['192.168.1.10', '10.0.0.2', '127.0.0.1']
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good = lambda motd, port: f'[MOTD]{motd}[/MOTD][AD]{port}[/AD]'.encode()
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for i in range(400):
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if i % 50 == 0:
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lines.append('reset')
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if rng.random() < 0.4:
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data = good(rng.choice(['A - W', 'B - W', 'é', '']), rng.choice(['25565', '25566', 'x', '']))
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else:
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data = b''.join(rng.choice(fragments) for _ in range(rng.randint(0, 9)))
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lines.append(f'heard\t{rng.choice(ips)}\t{data.hex()}')
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path = build / 'cases.txt'
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path.write_text('\n'.join(lines) + '\n', encoding='utf-8')
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return path, len(lines)
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if __name__ == '__main__':
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oh.differential(NAME, 'VanillaLanOracle', 'lan_probe', make_input,
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'LanServerPinger.createPingString/parseMotd/parseAddress, LanServerDetection decoding and '
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'LanServerList.addServer/takeDirtyServers',
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sources=[oh.lab.ROOT / 'crates/horizon-client/src/lan/discovery.rs'])
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