Missing Whitelist for nofollower, noreferer, noopener
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- Dominant language
- PHP
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Description
I have added a whitelist option to htmlpurifer with and wihout a tld
$config->set('HTML.TargetWhitelist', array('domain1.de','domain2.'));
Reason; you can have multiple domains for a single project or trusted(partner) domains. So here is a option for excluding missing. I have modify multiple files in \library\HTMLPurifier\AttrTransform* and \library\HTMLPurifier\AttrTransform.php itself.
I never make a pull request, but when you have interest in this option, I will try it.
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Research direction
Start by reading the existing attribute-transform classes under library/HTMLPurifier/AttrTransform/ and library/HTMLPurifier/AttrTransform.php. Trace how nofollower, noreferer, and noopener are handled, then define the whitelist behavior for configured domains such as domain1.de and domain2.; done means the option works consistently across the affected transforms and has coverage for domains with and without a TLD.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- php
- Domain
- security
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100