mirror of
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29 lines
599 B
Python
29 lines
599 B
Python
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class DnsCache:
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'''
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The DnsCache maintains a cache of DNS lookups, mirroring the browser experience.
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'''
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_instance = None
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def __init__(self):
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self.cache = {}
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def cacheResolution(self, host, address):
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self.cache[host] = address
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def getCachedAddress(self, host):
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if host in self.cache:
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return self.cache[host]
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return None
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def getInstance():
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if DnsCache._instance == None:
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DnsCache._instance = DnsCache()
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return DnsCache._instance
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getInstance = staticmethod(getInstance)
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