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#!/usr/bin/env python
'''
Copyright (C) 2020, WAFW00F Developers.
See the LICENSE file for copying permission.
'''
NAME = ' Expression Engine (EllisLab) '
def is_waf ( self ) :
# 定义用于检测是否存在特定 Web 应用防火墙（ ）
schemes = [
# 检查 Cookie 是否以'exp_track'开头并后跟任意字符直到'='，可能是一些站点在认证后设置的跟踪 Cookie。
self . matchCookie ( r ' ^exp_track.+?= ' ) ,
# 检查 Cookie 是否以'exp_last_'开头并后跟任意字符直到'='，
self . matchCookie ( r ' ^exp_last_.+?= ' , attack = True ) ,
# 检查响应内容中是否包含特定字符串'invalid get data'，但提到页面中的此类指纹在不同站点变化很大，所以不是很可靠。
self . matchContent ( r ' invalid get data ' )
]
# 如果方案列表中的任何一个方案为真，则认为检测到了 WAF。
if any ( i for i in schemes ) :
return True
else :
return False
