38 lines
875 B
Ruby
38 lines
875 B
Ruby
# frozen_string_literal: true
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require 'uri'
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module Banzai
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module Filter
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# HTML filter that converts relative urls into absolute ones.
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class AbsoluteLinkFilter < HTML::Pipeline::Filter
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def call
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return doc unless context[:only_path] == false
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doc.search('a.gfm').each do |el|
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process_link_attr el.attribute('href')
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end
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doc
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end
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protected
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def process_link_attr(html_attr)
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return if html_attr.blank?
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return if html_attr.value.start_with?('//')
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uri = URI(html_attr.value)
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html_attr.value = absolute_link_attr(uri) if uri.relative?
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rescue URI::Error
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# noop
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end
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def absolute_link_attr(uri)
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# Here we really want to expand relative path to absolute path
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URI.join(Gitlab.config.gitlab.url, uri).to_s
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end
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end
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end
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end
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