Implemented RSS 0.9 or RDF

lib/urss/entry.rb

@@ -4,14 +4,17 @@ class Urss::Entry
   attr_accessor :title, :url, :comments_url, :created_at, :author, :categories, :content, :medias
 
   # ~~~~ Class methods ~~~~
-  def self.build(nokogiri_instance)
+  def self.build(nokogiri_instance, namespace=nil)
     raise Urss::NotANokogiriInstance unless nokogiri_instance.is_a?(Nokogiri::XML::Element)
 
     entry = self.new
-    entry.title = nokogiri_instance.xpath("./title").text
-    entry.url = nokogiri_instance.xpath("./link").text
+    entry.title = nokogiri_instance.xpath("./#{namespace}title").text
+    entry.url = nokogiri_instance.xpath("./#{namespace}link").text
     entry.comments_url = nokogiri_instance.xpath("./comments").text
     entry.created_at = nokogiri_instance.xpath("./pubDate").text
+    if entry.created_at.nil? || entry.created_at.empty?
+      entry.created_at = nokogiri_instance.xpath("./dc:date").text
+    end
     entry.author = nokogiri_instance.xpath("./dc:creator", nokogiri_instance.namespaces).text
     entry.categories = nokogiri_instance.search("category").collect(&:text).join(", ")
     entry.content = nokogiri_instance.xpath("./description").text

lib/urss/rss.rb

@@ -7,13 +7,21 @@ class Urss::Rss
   def self.build(nokogiri_instance)
     raise Urss::NotANokogiriInstance unless nokogiri_instance.is_a?(Nokogiri::XML::Document)
 
-    rss = self.new
-    rss.title = nokogiri_instance.xpath("//channel/*[local-name()='title']").text
-    rss.url = nokogiri_instance.xpath("//channel/*[local-name()='link']").text
-    rss.description = nokogiri_instance.xpath("//channel/*[local-name()='description']").text
-    rss.updated_at = nokogiri_instance.xpath("//channel/*[local-name()='pubDate']").text
+    namespace = nokogiri_instance.namespaces["xmlns"] ? "xmlns:" : nil
 
-    nokogiri_instance.xpath("//item").each {|item| rss.entries << Urss::Entry.build(item)}
+    rss = self.new
+    rss.title = nokogiri_instance.xpath("//#{namespace}channel/#{namespace}title").text
+    rss.url = nokogiri_instance.xpath("//#{namespace}channel/#{namespace}link").text
+    rss.description = nokogiri_instance.xpath("//#{namespace}channel/#{namespace}description").text
+    rss.updated_at = nokogiri_instance.xpath("//#{namespace}channel/#{namespace}pubDate").text
+    if rss.updated_at.nil? || rss.updated_at.empty?
+      begin
+        rss.updated_at = nokogiri_instance.xpath("//#{namespace}channel/dc:date").text
+      rescue Nokogiri::XML::XPath::SyntaxError
+        # No pubDate or date field
+      end
+    end
+    nokogiri_instance.xpath("//#{namespace}item").each {|item| rss.entries << Urss::Entry.build(item, namespace)}
 
     rss
   end

spec/support/webmocks.rb

@@ -1,4 +1,5 @@
 stub_request(:get, "http://tech.rufy.com").to_return(:status => 200, :body => File.open(File.join(File.dirname(__FILE__), "fixtures", "rss20.xml")).read, :headers => {})
 stub_request(:get, "http://www.ruby-lang.org/en/feeds/news.rss").to_return(:status => 200, :body => File.open(File.join(File.dirname(__FILE__), "fixtures", "ruby.rss")).read, :headers => {})
 stub_request(:get, "http://www.flickr.com/photos/herval/").to_return(:status => 200, :body => File.open(File.join(File.dirname(__FILE__), "fixtures", "media_rss.xml")).read, :headers => {})
-stub_request(:get, "http://waxluxembourg.com/feed/").to_return(:status => 200, :body => File.open(File.join(File.dirname(__FILE__), "fixtures", "wax.rss")).read, :headers => {})
+stub_request(:get, "http://waxluxembourg.com/feed/").to_return(:status => 200, :body => File.open(File.join(File.dirname(__FILE__), "fixtures", "wax.rss")).read, :headers => {})
+stub_request(:get, "http://slashdot.org/").to_return(:status => 200, :body => File.open(File.join(File.dirname(__FILE__), "fixtures", "rss09.rdf")).read, :headers => {})

spec/urss/rss_spec.rb

@@ -27,13 +27,12 @@
       subject.should respond_to(:entries)
       subject.should respond_to(:entries=)
     end
+  end
 
+  describe "Class Methods" do
     it "should respond to build" do
       subject.class.should respond_to(:build)
     end
-  end
-
-  describe "Class Methods" do
     describe "#build" do
       describe "argument" do
         it "should raise an Urss::NotANokogiriInstance exception when passing something different than a Nokogiri::XML::Document instance" do

spec/urss_spec.rb

@@ -52,6 +52,77 @@
       end
     end
 
+    context "RSS 0.9" do
+      context "when parsing the rss09.xml example file at http://slashdot.org/" do
+        before { @parsed_rss = subject.at("http://slashdot.org/") }
+        it "should return an instance of Urss::Rss" do
+          @parsed_rss.should be_an_instance_of(Urss::Rss)
+        end
+        describe "Urss::Rss" do
+          describe "title" do
+            it "should return \"Slashdot\"" do
+              @parsed_rss.title.should == "Slashdot"
+            end
+          end
+          describe "url" do
+            it "should return \"http://slashdot.org/\"" do
+              @parsed_rss.url.should == "http://slashdot.org/"
+            end
+          end
+          describe "description" do
+            it "should return \"News for nerds, stuff that matters\"" do
+              @parsed_rss.description.should == "News for nerds, stuff that matters"
+            end
+          end
+          describe "updated_at" do
+            it "should return \"2005-09-09T02:52:31-07:00\"" do
+              @parsed_rss.updated_at.should == "2005-09-09T02:52:31-07:00"
+            end
+          end
+          describe"entries" do
+            describe "size" do
+              it "should be 10" do
+                @parsed_rss.entries.size.should be 10
+              end
+            end
+            describe "first" do
+              before { @first_parsed_rss = @parsed_rss.entries.first }
+              describe "title" do
+                it "should return \"JBoss - A Developer's Notebook\"" do
+                  @first_parsed_rss.title.should == "JBoss - A Developer's Notebook"
+                end
+              end
+              describe "url" do
+                it "should return \"http://books.slashdot.org/article.pl?sid=05/08/29/1319236&from=rss\"" do
+                  @first_parsed_rss.url.should == "http://books.slashdot.org/article.pl?sid=05/08/29/1319236&from=rss"
+                end
+              end
+              describe "comments_url" do
+                it "should be empty" do
+                  @first_parsed_rss.comments_url.should be_empty
+                end
+              end
+              describe "created_at" do
+                it "should return \"2005-09-09T02:52:31-07:00\"" do
+                  @first_parsed_rss.created_at.should == "2005-09-09T02:52:31-07:00"
+                end
+              end
+              describe "author" do
+                it "should be empty" do
+                  @first_parsed_rss.author.should be_empty
+                end
+              end
+              describe "categories" do
+                it "should be empty" do
+                  @first_parsed_rss.categories.should be_empty
+                end
+              end
+            end
+          end
+        end
+      end
+    end
+
     context "RSS 2.0" do
       context "without media" do
         context "when parsing the rss20.xml example file at http://tech.rufy.com" do