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[!] Sanitize incoming classlist properly (#6162)

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* Sanitize classlist properly

* Actually properly sanitize every class after the first

* Improve Formatter spec to check for multiple classes and non-space whitespace
This commit is contained in:
puckipedia
2018-01-03 03:54:08 +01:00
committed by Eugen Rochko
parent d319b3dbe4
commit 545095b3ce
2 changed files with 5 additions and 5 deletions
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8
app/lib/sanitize_config.rb
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@ -6,14 +6,14 @@ class Sanitize
CLASS_WHITELIST_TRANSFORMER = lambda do |env|
node = env[:node]
class_list = node['class']&.split(' ')
class_list = node['class']&.split(/[\t\n\f\r ]/)
return unless class_list
class_list.keep_if do |e|
return true if e =~ /^(h|p|u|dt|e)-/ # microformats classes
return true if e =~ /^(mention|hashtag)$/ # semantic classes
return true if e =~ /^(ellipsis|invisible)$/ # link formatting classes
next true if e =~ /^(h|p|u|dt|e)-/ # microformats classes
next true if e =~ /^(mention|hashtag)$/ # semantic classes
next true if e =~ /^(ellipsis|invisible)$/ # link formatting classes
end
node['class'] = class_list.join(' ')