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#!/usr/bin/env python
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'''
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Copyright (C) 2020, WAFW00F Developers.
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See the LICENSE file for copying permission.
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'''
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NAME = 'DOSarrest (DOSarrest Internet Security)'
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def is_waf(self):
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# 定义用于检测是否存在特定 Web 应用防火墙（WAF）的方案列表。
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schemes = [
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# 检查响应头中是否存在'X-DIS-Request-ID'字段且其值不为空。
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self.matchHeader(('X-DIS-Request-ID', '.+')),
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# 发现一些 DOSArrest 的样本返回'Server: DoSArrest/3.5'，检查响应头中的'Server'字段是否包含'DOSarrest'。
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self.matchHeader(('Server', r'DOSarrest(.*)?'))
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]
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# 如果方案列表中的任何一个方案为真，则认为检测到了 WAF。
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if any(i for i in schemes):
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return True
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else:
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return False
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