Website picture anti-hotlinking method based on CDN

Abstract

The invention discloses a website picture anti-hotlinking method based on a CDN. The method is characterized in that an identification process of an HTTP (hyper text transport protocol) request is configured in the CDN, and comprises the following steps: accessing a picture resource through the HTTP request, and accessing the picture resource into the CDN; acquiring a request header of the HTTP request; identifying an HTTP (Hyper Text Transport Protocol) request which does not carry Referer information; identifying an embedded access of the static resource; identifying a request sent via a browser; identifying the client as an HTTP request of an unconventional crawler and a proxy server; and for the HTTP request left after identification, enabling the server side to give deny access. The existing source station server logic does not need to be changed, so that server resources are effectively saved; the problem that the picture resources are accessed in a new hotlinking mode without HTTP request header Referer is solved; and the effect of avoiding using an overlong User-Agent white list is achieved.

Description

technical field [0001] The present invention belongs to the field of Internet technology. It specifically relates to a CDN-based method for preventing hotlinking of website pictures. Background technique [0002] Static resources generally include js, css, pictures, videos, and downloaded resources. In order to ensure the speed of users' access to static resources, large-scale websites will choose to connect the static resources of the website to a content delivery network (Content Delivery Network, hereinafter referred to as CDN). However, static resources are easily embezzled by illegal websites by directly embedding links. The source website of the static resources has nothing to do with this, and needs to pay CDN traffic fees for the theft of illegal websites. [0003] The purpose of setting up anti-leech links is to prevent static resources such as videos and pictures from being stolen by other websites, or to prevent others from citing links such as pictures directly...

AI Technical Summary

Problems solved by technology

If you blindly restrict certain referer whitelists to access resources, you may accidentally injure this part of normal users, which is why some anti-leech detections allow the Referer header to pass the detection; in addition, some search crawlers, mobile apps And the mail agent will not carry the Referer, so the referer header hiding can completely bypass the anti-leeching restrictions of some sites, which creates a shortcut for illegally stealing image resources, and also increases the difficulty of image theft prevention

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