47 lines
1.1 KiB
Ruby
47 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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module Onebox
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class JsonLd < Normalizer
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# Full schema.org hierarchy can be found here: https://schema.org/docs/full.html
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MOVIE_JSON_LD_TYPE = "Movie"
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SUPPORTED_TYPES = [MOVIE_JSON_LD_TYPE]
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def initialize(doc)
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@data = extract(doc)
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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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doc
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.css('script[type="application/ld+json"]')
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.each do |element|
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parsed_json = parse_json(element.text)
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if parsed_json.kind_of?(Array)
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parsed_json = parsed_json.detect { |x| SUPPORTED_TYPES.include?(x["@type"]) }
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return {} if !parsed_json
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end
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case parsed_json["@type"]
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when MOVIE_JSON_LD_TYPE
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return Onebox::Movie.new(parsed_json).to_h
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end
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end
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{}
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end
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def parse_json(json)
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begin
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JSON[json]
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rescue JSON::ParserError => e
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Discourse.warn_exception(e, message: "Error parsing JSON-LD: #{json}")
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{}
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end
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end
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end
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end
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