50 lines
1.1 KiB
Ruby
50 lines
1.1 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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def extract(doc)
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return {} if Onebox::Helpers.blank?(doc)
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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"][/^(?:og|article|product):(.+)$/i]) ||
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(m["name"] && m["name"][/^(?:og|article|product):(.+)$/i])
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value = (m["content"] || m["value"]).to_s
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data[$1.tr("-:", "_").to_sym] ||= value unless Onebox::Helpers.blank?(value)
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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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if title_element && title_element.text
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data[:title] ||= title_element.text unless Onebox::Helpers.blank?(title_element.text)
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end
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data
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end
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end
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end
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