Module: Onebox::Engine::StandardEmbed

Included in:
ImgurOnebox, SlidesOnebox, SoundCloudOnebox, WhitelistedGenericOnebox, YoutubeOnebox
Defined in:
lib/onebox/engine/standard_embed.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.add_oembed_provider(regexp, endpoint) ⇒ Object 



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# File 'lib/onebox/engine/standard_embed.rb', line 13

def self.add_oembed_provider(regexp, endpoint)
  oembed_providers[regexp] = endpoint
end

.add_opengraph_provider(regexp) ⇒ Object 



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# File 'lib/onebox/engine/standard_embed.rb', line 17

def self.add_opengraph_provider(regexp)
  opengraph_providers.push(regexp)
end

.oembed_providers ⇒ Object 



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# File 'lib/onebox/engine/standard_embed.rb', line 5

def self.oembed_providers
  @@oembed_providers ||= {}
end

.opengraph_providers ⇒ Object 



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# File 'lib/onebox/engine/standard_embed.rb', line 9

def self.opengraph_providers
  @@opengraph_providers ||= Array.new
end

Instance Method Details

#always_https? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/onebox/engine/standard_embed.rb', line 31

def always_https?
  WhitelistedGenericOnebox.host_matches(uri, WhitelistedGenericOnebox.https_hosts)
end

#raw ⇒ Object 



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# File 'lib/onebox/engine/standard_embed.rb', line 35

def raw
  return @raw if @raw

  StandardEmbed.oembed_providers.each do |regexp, endpoint|
    if url =~ regexp
      fetch_oembed_raw("#{endpoint}?url=#{url}")
      return @raw if @raw
    end
  end

  response = Onebox::Helpers.fetch_response(url)
  html_doc = Nokogiri::HTML(response.body)

  StandardEmbed.opengraph_providers.each do |regexp|
    if url =~ regexp
      @raw = parse_open_graph(html_doc, url)
      return @raw if @raw
    end
  end

  # Determine if we should use oEmbed or OpenGraph (prefers oEmbed)
  oembed_alternate = html_doc.at("//link[@type='application/json+oembed']") || html_doc.at("//link[@type='text/json+oembed']")
  # Do not use oEmbed for WordPress sites (https://meta.discourse.org/t/onebox-for-wordpress-4-4-sites/36765)
  fetch_oembed_raw(oembed_alternate) unless oembed_alternate.nil? || oembed_alternate['href'] =~ /public-api.wordpress.com\/oembed/ || oembed_alternate['href'] =~ /wp-json\/oembed/

  open_graph = parse_open_graph(html_doc, url)
  if @raw
    @raw[:image] = open_graph.images.first if @raw[:image].nil? && open_graph && open_graph.images
    return @raw
  end

  @raw = open_graph
end