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Hotlink prevention, security enhancement and feature addition via short url functionality

Status
Open
Subject
Hotlink prevention, security enhancement and feature addition via short url functionality
Version
16.x
Category
  • Feature request
Feature
File Gallery (elFinder or standard UI)
Resolution status
New
Submitted by
Niel Hirjee
Lastmod by
Niel Hirjee
Rating
(0)
Description

Since the short Url feature is being added to Tiki, could it not be combined with file galleries such that a file in a gallery is linked or displayed by using a short Url instead of the file Id?

This will enhance security and add new functionality to Tiki. Currently the value of fileId is sequentially generated and is therefore predictable: visitors can easily scrape off files from a tiki install by using tiki_download and incrementing the value of fileId inside a loop. Additionally, files can be hotlinked.

To fortify tiki against this, all that needs to be done is to combine the new short Url functionality with file galleries: if plugin files is used with a parameter, say "mask" or "obfuscate", then the fileId will be substituted with a short code. For example, the user enters tiki-download_file.php?fileId=1 in the wiki text editor, just as before, but if the obfuscate="y" parameter is used then the html will show tiki-download_file.php?fileId=RandomShortURLhghhgfftrdfgnj

As an additional feature, if the duration (life / validity) of the short code can be user defined per gallery / file / plugin files parameter, then tiki-download_file.php?fileId=RandomShortURLhghhgfftrdfgnj will stop serving fileId=1 after that time. Tiki could then be made to serve content via perishable and non predictable file names - just like the big CDN companies such as Akamai do.

I imagine this would be fairly simple to implement and would add a very useful feature to Tiki.

For a simple implementation of this idea, see:
https://github.com/spatie/url-signer

Importance
2
Easy to solve?
8
Priority
16
Demonstrate Bug
Please demonstrate your bug on show2.tikiwiki.org

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Version: Create show2.tikiwiki.org instance
Ticket ID
6238
Created
Tuesday 10 January, 2017 21:56:49 GMT-0000
LastModif
Thursday 02 February, 2017 12:23:05 GMT-0000

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