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图片 防盗链,该如何解决

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Release: 2016-06-13 10:27:38
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图片 防盗链
比如我想下载这个图片:
http://down.qqtz.com/attachment/Day_120613/248_1010720_1b320fcc0c7f252.jpg
实际上这个图片跳转到
http://i.qqtz.com/qqtz.png

请问,他依据什么来判断是站外的引用而做的跳转?
比如我伪造php访问的referer是他的站都不行?

------解决方案--------------------
3c44b_lastpos=other; 3c44b_lastvisit=1 1339582619 /jsdl.php?; 

我想复杂了点,其实直接COOKIE控制就行,你看它这些COOKIE,明显用来做记录用的。

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