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14d97f9cf1
Currently when generating a onebox for Discourse topics, some important context is missing such as categories and tags. This patch addresses this issue by introducing a new onebox engine dedicated to display this information when available. Indeed to get this new information, categories and tags are exposed in the topic metadata as opengraph tags.
53 lines
1.2 KiB
Ruby
53 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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module Onebox
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class Normalizer
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attr_reader :data
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def get(attr, *args)
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value = data[attr]
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return if value.blank?
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return value.map { |v| sanitize_value(v, *args) } if value.is_a?(Array)
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sanitize_value(value, *args)
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end
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def method_missing(attr, *args, &block)
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value = get(attr, *args)
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return nil if Onebox::Helpers.blank?(value)
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method_name = attr.to_s
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if method_name.end_with?(*integer_suffixes)
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value.to_i
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elsif method_name.end_with?(*url_suffixes)
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result = Onebox::Helpers.normalize_url_for_output(value)
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result unless Onebox::Helpers.blank?(result)
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else
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value
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end
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end
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private
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def integer_suffixes
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%w[width height]
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end
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def url_suffixes
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%w[url image video]
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end
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def html_entities
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@html_entities ||= HTMLEntities.new
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end
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def sanitize_value(value, length = nil, sanitize = true)
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value = html_entities.decode(value)
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value = Sanitize.fragment(value) if sanitize
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value.strip!
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value = Onebox::Helpers.truncate(value, length) if length
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value
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end
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end
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end
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