#!/usr/bin/env python
'''
Copyright (C) 2020, WAFW00F Developers.
See the LICENSE file for copying permission.
'''

NAME = 'Wordfence (Defiant)'


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'wf[_-]?WAF'，其中'[_-]?'表示下划线或连字符可有可无。
        self.matchHeader(('Server', r'wf[_\-]?WAF')),
        # 检查响应内容中是否包含'Generated by Wordfence'。
        self.matchContent(r"Generated by Wordfence"),
        # 检查响应内容中是否包含'broke one of (the )?Wordfence (advanced )?blocking rules'。
        self.matchContent(r'broke one of (the )?Wordfence (advanced )?blocking rules'),
        # 检查响应内容中是否包含'/plugins/wordfence'。
        self.matchContent(r'/plugins/wordfence')
    ]
    # 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