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ASP File Validator (No-DLL) - See if a file is true to its extension.

Submitted on: 1/7/2015 1:32:00 PM
By: James Dougherty (from psc cd)  
Level: Intermediate
User Rating: By 4 Users
Compatibility: ASP (Active Server Pages), VbScript (browser/client side)
Views: 3569
     This is a non-dll based solution for validating file types. This was going to be part of an advanced upload system I was working on, but abandoned as I am going to take another approach to it. This class will let you know if the file being uploaded to the server is what it states it is. In other words, if you only allow jpg files and someone renames an exe to jpg it will catch it. It currently supports the following formats: iff, psp, bmp, tga, dds, jpg, jp2, pcx, gif, tif, avi, wav, mp3, ogg, exe, dll, ocx, zip, and rar. Please note that I do not think there is anything notably different about the exe, dll, and ocx headers to set them apart. I hope this will be useful to someone and someone can take advantage of it.
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Note: Due to the size or complexity of this submission, the author has submitted it as a .zip file to shorten your download time. Afterdownloading it, you will need a program like Winzip to decompress it.Virus note:All files are scanned once-a-day by Planet Source Code for viruses, but new viruses come out every day, so no prevention program can catch 100% of them. For your own safety, please:
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