56 lines
1.9 KiB
Ruby
56 lines
1.9 KiB
Ruby
module Articles
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module EnrichImageAttributes
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IMAGES_IN_LIQUID_TAGS_SELECTORS = [
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".liquid-comment img", # CommentTag
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".ltag-github-readme-tag img", # GithubReadmeTag
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".ltag__link__pic img", # LinkTag and MediumTag profile pic
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".ltag__link__servicename img", # MediumTag
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".ltag__link__taglist img", # LinkTag
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".ltag__reddit--container img", # RedditTag
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".ltag__stackexchange--container img", # StackexchangeTag
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".ltag__twitter-tweet img", # TweetTag
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".ltag__user img", # UserTag and OrganizationTag
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".ltag__user-subscription-tag img", # UserSubscriptionTag
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".ltag_github-liquid-tag img", # GitHubIssueTag
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".podcastliquidtag img", # PodcastTag
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].join(", ").freeze
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def self.call(article)
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parsed_html = Nokogiri::HTML.fragment(article.processed_html)
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# we ignore images contained in liquid tags as they are not animated
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images = parsed_html.css("img") - parsed_html.css(IMAGES_IN_LIQUID_TAGS_SELECTORS)
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return unless images.any?
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images.each do |img|
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src = img.attr("src")
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next unless src
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image = if URI.parse(src).relative?
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retrieve_image_from_uploader_store(src)
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else
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src
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end
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next if image.blank?
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img_properties = FastImage.new(image, timeout: 10)
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img["width"], img["height"] = img_properties.size
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img["data-animated"] = true if img_properties.type == :gif
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end
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article.update_columns(processed_html: parsed_html.to_html)
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end
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def self.retrieve_image_from_uploader_store(src)
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filename = File.basename(src)
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uploader = ArticleImageUploader.new
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uploader.retrieve_from_store!(filename)
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return unless uploader.file.exists?
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uploader.file&.file
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end
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private_class_method :retrieve_image_from_uploader_store
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end
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end
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