standard_embed.rb in onebox-1.5.11

- old
+ new

@@ -1,39 +1,58 @@
 module Onebox
   module Engine
     module StandardEmbed
+
+      def self.oembed_providers
+        @@oembed_providers ||= {}
+      end
+
+      def self.add_oembed_provider(regexp, endpoint)
+        oembed_providers[regexp] = endpoint
+      end
+
+      # Some oembed providers (like meetup.com) don't provide links to themselves
+      add_oembed_provider /www\.meetup\.com\//, 'http://api.meetup.com/oembed'
+
       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)
 
         # Determine if we should use OEmbed or OpenGraph
         oembed_alternate = html_doc.at("//link[@type='application/json+oembed']") || html_doc.at("//link[@type='text/json+oembed']")
-        if oembed_alternate
-          # If the oembed request fails, we can still try the opengraph below.
-          begin
-            @raw = Onebox::Helpers.symbolize_keys(::MultiJson.load(Onebox::Helpers.fetch_response(oembed_alternate['href']).body))
-          rescue Errno::ECONNREFUSED, Net::HTTPError, MultiJson::LoadError
-            @raw = nil
-          end
-        end
+        fetch_oembed_raw(oembed_alternate)
 
         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
 
       private
 
-      def parse_open_graph(html, url)
+      def fetch_oembed_raw(oembed_url)
+        return unless oembed_url
+        @raw = Onebox::Helpers.symbolize_keys(::MultiJson.load(Onebox::Helpers.fetch_response(oembed_url).body))
+      # rescue Errno::ECONNREFUSED, Net::HTTPError, MultiJson::LoadError
+      #   @raw = nil
+      end
+
+      def parse_open_graph(html, og_url)
         og = Struct.new(:url, :type, :title, :description, :images, :metadata, :html).new
-        og.url = url
+        og.url = og_url
         og.images = []
         og.metadata = {}
 
         attrs_list = %w(title url type description)
         html.css('meta').each do |m|
@@ -44,10 +63,10 @@
             og.metadata[m_name.to_sym].push m_content
             if m_name == "image"
               image_uri = URI.parse(m_content) rescue nil
               if image_uri
                 if image_uri.host.nil?
-                  image_uri.host = URI.parse(url).host
+                  image_uri.host = URI.parse(og_url).host
                 end
                 og.images.push image_uri.to_s
               end
             elsif attrs_list.include? m_name
               og.send("#{m_name}=", m_content) unless m_content.empty?