Cross-site request forgery (CSRF) and cross-domain problem

1.CSRF defined

• Camouflage requests from trusted users access to trusted sites, (the attacker stole your identity, to your name send malicious request)
• Produce condition

1、用户要登录受信任的网站，并在本地生成cookie
2、在不退出安全网站的情况下，访问危险网站

• Response options

(1)验证 HTTP Referer 字段；查看请求来源的地址
(2)在请求地址中添加 token 并验证；
(3)在 HTTP 头中自定义属性并验证
(4)在表单中添加from.csrf_token

2. Cross-domain issues

• Front-end processing Jsonp
• The background is simple, non-simple request for pre-screening (options)
• response['Access-Control-Allow-Methods'] 指定cent_type,token

from django.middleware.security import  MiddlewareMixin
class MyMiddle(MiddlewareMixin ):
    def process_response(self,request,response):
        if request .method=='OPTIONS':
            response['Access-Control-Allow-Methods'] = '*'
            response['Access-Control-Allow-Headers'] = '*'
        response['Access-Control-Allow-Origin'] = '*'
        return response

# 在settings里配置
 # 'app01.utils.myMiddle.MyMiddle'