46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
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import json
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import sha3
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def keccak256(data):
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hasher = sha3.keccak_256()
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hasher.update(data)
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return hasher.digest()
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# See: http://docs.ens.domains/en/latest/introduction.html#namehash
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# See: https://github.com/ethereum/EIPs/issues/137
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def namehash(name):
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name = name.lower()
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if name == '':
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return '\0' * 32
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else:
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label, _, remainder = name.partition('.')
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return keccak256(namehash(remainder) + keccak256(label))
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Tests = [
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dict(name = "", test = "official-test-vector-0", expected = "0x0000000000000000000000000000000000000000000000000000000000000000"),
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dict(name = "eth", test = "official-test-vector-1", expected = "0x93cdeb708b7545dc668eb9280176169d1c33cfd8ed6f04690a0bcc88a93fc4ae"),
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dict(name = "foo.eth", test = "official-test-vector-2", expected = "0xde9b09fd7c5f901e23a3f19fecc54828e9c848539801e86591bd9801b019f84f"),
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dict(name = "", test = "empty"),
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dict(name = "eth", test = "top-levle"),
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dict(name = "wallet.eth", test = "second-level"),
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dict(name = "vitalik.wallet.eth", test = "third-level"),
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dict(name = "ViTalIk.WALlet.Eth", test = "mixed case"),
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]
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# @TODO: add Unicode examples
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for i in xrange(0, len(Tests)):
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test = Tests[i]
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hash = '0x' + namehash(test['name']).encode('hex')
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if 'expected' in test:
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if test['expected'] != hash:
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raise Exception('Bad Wolf')
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else:
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test['expected'] = hash
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with file('../tests/ens.json', 'w') as f:
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f.write(json.dumps(Tests))
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