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Versions: 24
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Stored size: 1.26 KB
Contents
class Sanitize; module Transformers; module CSS
# Enforces a CSS whitelist on the contents of `style` attributes.
class CleanAttribute
def initialize(sanitizer_or_config)
if Sanitize::CSS === sanitizer_or_config
@scss = sanitizer_or_config
else
@scss = Sanitize::CSS.new(sanitizer_or_config)
end
end
def call(env)
node = env[:node]
return unless node.type == Nokogiri::XML::Node::ELEMENT_NODE &&
node.key?('style') && !env[:is_whitelisted]
attr = node.attribute('style')
css = @scss.properties(attr.value)
if css.strip.empty?
attr.unlink
else
attr.value = css
end
end
end
# Enforces a CSS whitelist on the contents of `<style>` elements.
class CleanElement
def initialize(sanitizer_or_config)
if Sanitize::CSS === sanitizer_or_config
@scss = sanitizer_or_config
else
@scss = Sanitize::CSS.new(sanitizer_or_config)
end
end
def call(env)
node = env[:node]
return unless node.type == Nokogiri::XML::Node::ELEMENT_NODE &&
env[:node_name] == 'style'
css = @scss.stylesheet(node.content)
if css.strip.empty?
node.unlink
else
node.children.unlink
node << Nokogiri::XML::Text.new(css, node.document)
end
end
end
end; end; end
Version data entries
24 entries across 24 versions & 1 rubygems