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Changelog

2.2.2 / 2018-03-22

Make public Loofah::HTML5::Scrub.force_correct_attribute_escaping!, which was previously a private method. This is so that downstream gems (like rails-html-sanitizer) can use this logic directly for their own attribute scrubbers should they need to address CVE-2018-8048.

2.2.1 / 2018-03-19

Addresses CVE-2018-8048. Loofah allowed non-whitelisted attributes to be present in sanitized output when input with specially-crafted HTML fragments.

This CVE's public notice is at flavorjones#144

2.2.0 / 2018-02-11

Features:

  • Support HTML5 <main> tag. #133 (Thanks, @MothOnMars!)
  • Recognize HTML5 block elements. #136 (Thanks, @MothOnMars!)
  • Support SVG <symbol> tag. #131 (Thanks, @baopham!)
  • Support for whitelisting CSS functions, initially just calc and rgb. #122/#123/#129 (Thanks, @NikoRoberts!)
  • Whitelist CSS property list-style-type. #68/#137/#142 (Thanks, @andela-ysanni and @NikoRoberts!)

Bugfixes:

  • Properly handle nested script tags. #127.

2.1.1 / 2017-09-24

Bugfixes:

  • Removed warning for unused variable. #124 (Thanks, @y-yagi!)

2.1.0 / 2017-09-24

Notes:

  • Re-implemented CSS parsing and sanitization using the crass library. #91

Features:

  • Added :noopener HTML scrubber (Thanks, @tastycode!)
  • Support data URIs with the following media types: text/plain, text/css, image/png, image/gif, image/jpeg, image/svg+xml. #101, #120. (Thanks, @mrpasquini!)

Bugfixes:

  • The :unprintable scrubber now scrubs unprintable characters in CDATA nodes (like <script>). #124
  • Allow negative values in CSS properties. Restores functionality that was reverted in v2.0.3. #91

2.0.3 / 2015-08-17

Bug fixes:

  • Revert support for negative values in CSS properties due to slow performance. #90 (Related to #85.)

2.0.2 / 2015-05-05

Bug fixes:

  • Fix error with #to_text when Loofah::Helpers hadn't been required. #75
  • Allow multi-word data attributes. #84 (Thanks, @jstorimer!)
  • Allow negative values in CSS properties. #85 (Thanks, @siddhartham!)

2.0.1 / 2014-08-21

Bug fixes:

  • Load RR correctly when running test files directly. (Thanks, @ktdreyer!)

Notes:

  • Extracted HTML5::Scrub#scrub_css_attribute to accommodate the Rails integration work. (Thanks, @kaspth!)

2.0.0 / 2014-05-09

Compatibility notes:

  • ActionView helpers now must be required explicitly: require "loofah/helpers"
  • Support for Ruby 1.8.7 and prior has been dropped

Enhancements:

  • HTML5 whitelist allows the following ...
    • tags: article, aside, bdi, bdo, canvas, command, datalist, details, figcaption, figure, footer, header, mark, meter, nav, output, section, summary, time
    • attributes: data-* (Thanks, Rafael Franca!)
    • URI attributes: poster and preload
  • Addition of the :unprintable scrubber to remove unprintable characters from text nodes. #65 (Thanks, Matt Swanson!)
  • Loofah.fragment accepts an optional encoding argument, compatible with Nokogiri::HTML::DocumentFragment.parse. #62 (Thanks, Ben Atkins!)
  • HTML5 sanitizers now remove attributes without values. (Thanks, Kasper Timm Hansen!)

Bug fixes:

  • HTML5 sanitizers' CSS keyword check now actually works (broken in v2.0). Additional regression tests added. (Thanks, Kasper Timm Hansen!)
  • HTML5 sanitizers now allow negative arguments to CSS. #64 (Thanks, Jon Calhoun!)

1.2.1 (2012-04-14)

  • Declaring encoding in html5/scrub.rb. Without this, use of the ruby -KU option would cause havoc. (#32)

1.2.0 (2011-08-08)

Enhancements:

  • Loofah::Helpers.sanitize_css is a replacement for Rails's built-in sanitize_css helper.
  • Improving ActionView integration.

1.1.0 (2011-08-08)

Enhancements:

  • Additional HTML5lib whitelist elements (from html5lib 1524:80b5efe26230). Up to date with HTML5lib ruby code as of 1723:7ee6a0331856.
  • Whitelists (which are not part of the public API) are now Sets (were previously Arrays).
  • Don't explode when encountering UTF-8 URIs. (#25, #29)

1.0.0 (2010-10-26)

Notes:

  • Moved ActiveRecord functionality into loofah-activerecord gem.
  • Removed DEPRECATIONS.rdoc documenting 0.3.0 API changes.

0.4.7 (2010-03-09)

Enhancements:

  • New methods Loofah::HTML::Document#to_text and Loofah::HTML::DocumentFragment#to_text do the right thing with whitespace. Note that these methods are significantly slower than #text. GH #12
  • Loofah::Elements::BLOCK_LEVEL contains a canonical list of HTML4 block-level4 elements.
  • Loofah::HTML::Document#text and Loofah::HTML::DocumentFragment#text will return unescaped HTML entities by passing :encode_special_chars => false.

0.4.4, 0.4.5, 0.4.6 (2010-02-01)

Enhancements:

  • Loofah::HTML::Document#text and Loofah::HTML::DocumentFragment#text now escape HTML entities.

Bug fixes:

  • Loofah::XssFoliate was not properly escaping HTML entities when implicitly scrubbing a string attribute. GH #17

0.4.3 (2010-01-29)

Enhancements:

  • All built-in scrubbers are accepted by ActiveRecord::Base.xss_foliate
  • Loofah::XssFoliate.xss_foliate_all_models replaces use of the constant LOOFAH_XSS_FOLIATE_ALL_MODELS

Miscellaneous:

  • Modified documentation for bootstrapping XssFoliate in a Rails app, since the use of Bundler breaks the previously-documented method. To be safe, always use an initializer file.

0.4.2 (2010-01-22)

Enhancements:

  • Implemented Node#scrub! for scrubbing subtrees.
  • Implemented NodeSet#scrub! for scrubbing a set of subtrees.
  • Document.text now only serializes contents (ignores )
  • , and added to the HTML5lib whitelist.

Bug fixes:

  • Supporting Rails apps that aren't loading ActiveRecord. GH #10

Miscellaneous:

0.4.1 (2009-11-23)

Bugfix:

  • Manifest fixed. Whoops.

0.4.0 (2009-11-21)

Enhancements:

  • Scrubber class introduced, allowing development of custom scrubbers.
  • Added support for XML documents and fragments.
  • Added :nofollow HTML scrubber (thanks Luke Melia!)
  • Built-in scrubbing methods refactored to use Scrubber.

0.3.1 (2009-10-12)

Bug fixes:

  • Scrubbed Documents properly render html, head and body tags when serialized.

0.3.0 (2009-10-06)

Enhancements:

  • New ActiveRecord extension xss_foliate, a drop-in replacement for xss_terminate[http://github.com/look/xss_terminate/tree/master].
  • Replacement methods for Rails's helpers, Loofah::Rails.sanitize and Loofah::Rails.strip_tags.
  • Official support (and test coverage) for Rails versions 2.3, 2.2, 2.1, 2.0 and 1.2.

Deprecations:

  • The methods strip_tags, whitewash, whitewash_document, sanitize, and sanitize_document have been deprecated. See DEPRECATED.rdoc for details on the equivalent calls with the post-0.2 API.

0.2.2 (2009-09-30)

Enhancements:

  • ActiveRecord extension scrubs fields in a before_validation callback (was previously in a before_save)

0.2.1 (2009-09-19)

Enhancements:

  • when loaded in a Rails app, automatically extend ActiveRecord::Base with html_fragment and html_document. GH #6 (Thanks Josh Nichols!)

Bugfixes:

  • ActiveRecord scrubbing should generate strings instead of Document or DocumentFragment objects. GH #5
  • init.rb fixed to support installation as a Rails plugin. GH #6 (Thanks Josh Nichols!)

0.2.0 (2009-09-11)

  • Swank new API.
  • ActiveRecord extension.
  • Uses Nokogiri's Document and DocumentFragment for parsing.
  • Updated html5lib codes and tests to revision 1384:b9d3153d7be7.
  • Deprecated the Dryopteris sanitization methods. Will be removed in 0.3.0.
  • Documentation! Hey!

0.1.2 (2009-04-30)

  • Added whitewashing -- removal of all attributes and namespaced nodes. You know, for microsofty HTML.

0.1.0 (2009-02-10)

  • Birthday!