Scripted thumbnail generation: security perspective

While searching for something on the net, I came across some scripts that generate image thumbnail on the fly. For example: http://tech.mikelopez.info/2006/03/02/php-image-resize-script/. While using such scripts we should be aware of the security point of view: your site can easily become a proxy for other people or websites. Another similar script is here: http://www.findmotive.com/2006/08/29/create-square-image-thumbnails-with-php/. The [...]

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