57 lines
1.3 KiB
Ruby
57 lines
1.3 KiB
Ruby
# frozen_string_literal: true
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module Onebox
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class OpenGraph < Normalizer
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def initialize(doc)
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@data = extract(doc)
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end
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def title
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get(:title, 80)
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end
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def title_attr
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!title.nil? ? "title='#{title}'" : ""
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end
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def secure_image_url
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secure_url = URI(get(:image))
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secure_url.scheme = "https"
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secure_url.to_s
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end
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private
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COLLECTIONS = %i[article_section article_section_color article_tag]
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def extract(doc)
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return {} if doc.blank?
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data = {}
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doc
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.css("meta")
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.each do |m|
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if (m["property"] && m["property"][/\A(?:og|article|product):(.+)\z/i]) ||
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(m["name"] && m["name"][/\A(?:og|article|product):(.+)\z/i])
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value = (m["content"] || m["value"]).to_s
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next if value.blank?
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key = $1.tr("-:", "_").to_sym
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data[key] ||= value
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if key.in?(COLLECTIONS)
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collection_name = "#{key}s".to_sym
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data[collection_name] ||= []
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data[collection_name] << value
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end
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end
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end
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# Attempt to retrieve the title from the meta tag
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title_element = doc.at_css("title")
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data[:title] ||= title_element.text if title_element && title_element.text.present?
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data
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end
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end
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end
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