# 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 github.com/flavorjones/loofah/issues/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::TextBehavior#to_text and Loofah::TextBehavior#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::TextBehavior#text and Loofah::TextBehavior#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::TextBehavior#text and Loofah::TextBehavior#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 <body> contents (ignores <head>)

- <head>, <html> and <body> added to the HTML5lib whitelist.

Bug fixes:

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

Miscellaneous:

- Mailing list is now loofah@librelist.com / librelist.com

- IRC channel is now loofah on freenode.

## 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.

- 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!