87 lines
2.4 KiB
Ruby
87 lines
2.4 KiB
Ruby
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# frozen_string_literal: true
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module Gitlab
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module GithubImport
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module Markdown
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class Attachment
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MEDIA_TYPES = %w[gif jpeg jpg mov mp4 png svg webm].freeze
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DOC_TYPES = %w[
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csv docx fodg fodp fods fodt gz log md odf odg odp ods
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odt pdf pptx tgz txt xls xlsx zip
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].freeze
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class << self
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# markdown_node - CommonMarker::Node
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def from_markdown(markdown_node)
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case markdown_node.type
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when :html, :inline_html
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from_inline_html(markdown_node)
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when :image
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from_markdown_image(markdown_node)
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when :link
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from_markdown_link(markdown_node)
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end
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end
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private
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def from_markdown_image(markdown_node)
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url = markdown_node.url
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return unless github_url?(url, media: true)
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return unless whitelisted_type?(url, media: true)
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new(markdown_node.to_plaintext.strip, url)
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end
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def from_markdown_link(markdown_node)
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url = markdown_node.url
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return unless github_url?(url, docs: true)
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return unless whitelisted_type?(url, docs: true)
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new(markdown_node.to_plaintext.strip, url)
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end
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def from_inline_html(markdown_node)
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img = Nokogiri::HTML.parse(markdown_node.string_content).xpath('//img')[0]
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return unless img
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return unless github_url?(img[:src], media: true)
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return unless whitelisted_type?(img[:src], media: true)
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new(img[:alt], img[:src])
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end
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def github_url?(url, docs: false, media: false)
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if media
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url.start_with?(::Gitlab::GithubImport::MarkdownText::GITHUB_MEDIA_CDN)
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elsif docs
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url.start_with?(::Gitlab::GithubImport::MarkdownText.github_url)
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end
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end
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def whitelisted_type?(url, docs: false, media: false)
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if media
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MEDIA_TYPES.any? { |type| url.end_with?(type) }
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elsif docs
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DOC_TYPES.any? { |type| url.end_with?(type) }
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end
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end
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end
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attr_reader :name, :url
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def initialize(name, url)
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@name = name
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@url = url
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end
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def inspect
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"<#{self.class.name}: { name: #{name}, url: #{url} }>"
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end
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end
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end
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end
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end
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