31 lines
640 B
Ruby
31 lines
640 B
Ruby
module Banzai
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module Filter
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# HTML Filter to modify the attributes of external links
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class ExternalLinkFilter < HTML::Pipeline::Filter
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def call
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doc.search('a').each do |node|
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link = node.attr('href')
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next unless link
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# Skip non-HTTP(S) links
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next unless link.start_with?('http')
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# Skip internal links
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next if link.start_with?(internal_url)
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node.set_attribute('rel', 'nofollow noreferrer')
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end
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doc
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end
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private
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def internal_url
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@internal_url ||= Gitlab.config.gitlab.url
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end
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end
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end
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end
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