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#!/usr/bin/env python
'''
Copyright (C) 2020, WAFW00F Developers.
See the LICENSE file for copying permission.
NAME = 'Newdefend (NewDefend)'
def is_waf(self):
# 定义用于检测是否存在特定 Web 应用防火墙（WAF）的方案列表。
schemes = [
# 检查响应头中的'Server'字段是否为'Newdefend'，此头可以在非攻击模式下获得，并且是最可靠的特征之一。
self.matchHeader(('Server', 'Newdefend')),
# 在被拦截的页面中比较可靠的特征。
self.matchContent(r'www\.newdefend\.com/feedback'),
self.matchContent(r'/nd\-block/')
]
# 如果方案列表中的任何一个条件为真，则认为检测到了 WAF。
if any(i for i in schemes):
return True
else:
return False
