fix: og multi image support. Fixes #14

lib/link_thumbnailer/scrapers/base.rb

@@ -27,11 +27,15 @@ def value
       end
 
       def meta_xpath(options = {})
+        meta_xpaths(options).first
+      end
+
+      def meta_xpaths(options = {})
         key       = options.fetch(:key, :property)
         value     = options.fetch(:value, :content)
         attribute = options.fetch(:attribute, attribute_name)
 
-        document.xpath("//meta[translate(@#{key},'#{abc.upcase}','#{abc}') = '#{attribute}' and @#{value}]").first
+        document.xpath("//meta[translate(@#{key},'#{abc.upcase}','#{abc}') = '#{attribute}' and @#{value}]")
       end
 
       def abc

lib/link_thumbnailer/scrapers/opengraph/image.rb

@@ -1,3 +1,4 @@
+require 'pry'
 require 'link_thumbnailer/scrapers/opengraph/base'
 
 module LinkThumbnailer
@@ -11,10 +12,19 @@ def value
           model
         end
 
+        def model
+          nodes.map { |n| modelize(n, n.attributes['content'].to_s) }
+        end
+
         def modelize(node, text = nil)
           model_class.new(text)
         end
 
+        def nodes
+          nodes = meta_xpaths(attribute: attribute)
+          nodes.empty? ? meta_xpaths(attribute: attribute, key: :name) : nodes
+        end
+
       end
     end
   end

spec/fixture_spec.rb

@@ -28,6 +28,24 @@
 
     end
 
+    context 'with multi image' do
+
+      let(:png_url_2) { 'http://foo.com/bar.png' }
+      let(:png_2)     { File.open(File.dirname(__FILE__) + '/fixtures/bar.png') }
+      let(:html)      { File.open(File.dirname(__FILE__) + '/fixtures/og_valid_multi_image_example.html').read() }
+
+      before do
+        stub_request(:get, png_url_2).to_return(status: 200, body: png_2, headers: {})
+      end
+
+      it { expect(action.title).to                  eq(title) }
+      it { expect(action.description).to            eq(description) }
+      it { expect(action.images.count).to           eq(2) }
+      it { expect(action.images.first.src.to_s).to  eq(png_url) }
+      it { expect(action.images.last.src.to_s).to   eq(png_url_2) }
+
+    end
+
     context 'when not valid' do
 
       let(:html) { File.open(File.dirname(__FILE__) + '/fixtures/og_not_valid_example.html').read() }