diff --git a/app/controllers/public/content_viewer_controller.rb b/app/controllers/public/content_viewer_controller.rb
index e2f0914..e97dcdb 100644
--- a/app/controllers/public/content_viewer_controller.rb
+++ b/app/controllers/public/content_viewer_controller.rb
@@ -19,6 +19,12 @@ class ContentViewerController < PublicController
       end
     end
 
+    if @page.mime_type != 'text/html'
+      headers['Content-Type'] = @page.mime_type
+      render :text => @page.data, :layout => false
+      return
+    end
+
     if request.post? && params[:comment]
       @comment = Comment.new(params[:comment])
       @comment.author = user if logged_in?
diff --git a/app/models/article.rb b/app/models/article.rb
index 71fec9d..f2002f9 100644
--- a/app/models/article.rb
+++ b/app/models/article.rb
@@ -39,6 +39,12 @@ class Article < ActiveRecord::Base
     body
   end
 
+  # returns the data of the article. Must be overriden in each subclass to
+  # provide the correct content for the article. 
+  def data
+    body
+  end
+
   # provides the icon name to be used for this article. In this class this
   # method just returns 'text-html', but subclasses may (and should) override
   # to return their specific icons.
diff --git a/app/models/rss_feed.rb b/app/models/rss_feed.rb
new file mode 100644
index 0000000..94ec751
--- /dev/null
+++ b/app/models/rss_feed.rb
@@ -0,0 +1,43 @@
+class RssFeed < Article
+
+  # store setting in body
+  serialize Hash, :body
+
+  # TODO
+  def to_html
+  end
+
+  # RSS feeds have type =text/xml=.
+  def mime_type
+    'text/xml'
+  end
+
+  # FIXME - feed real data into the RSS feed
+  def data
+    result = ""
+    xml = Builder::XmlMarkup.new(:target => result)
+
+    xml.instruct! :xml, :version=>"1.0" 
+    xml.rss(:version=>"2.0") do
+      xml.channel do
+        xml.title(_("%s's RSS feed") % (self.profile.name))
+        xml.link("http://www.yourDomain.com")
+        xml.description('Description here')
+        xml.language("pt_BR")
+        for article in profile.recent_documents(10)
+          xml.item do
+            xml.title(article.name)
+            xml.description(article.abstract)
+            # rfc822
+            xml.pubDate(article.created_on.rfc2822)
+            xml.link("http://www.yourDomain.com/linkToYourPost")
+            xml.guid("http://www.yourDomain.com/linkToYourPost")
+          end
+        end
+      end
+    end
+
+    result
+  end
+
+end
diff --git a/db/migrate/007_create_articles.rb b/db/migrate/007_create_articles.rb
index ea6240c..bf562c9 100644
--- a/db/migrate/007_create_articles.rb
+++ b/db/migrate/007_create_articles.rb
@@ -23,6 +23,9 @@ class CreateArticles < ActiveRecord::Migration
       # acts as versioned
       t.column :version, :integer
       t.column :lock_version, :integer
+
+      # single-table inheritance
+      t.column :type, :string
     end
 
     Article.create_versioned_table
diff --git a/test/functional/content_viewer_controller_test.rb b/test/functional/content_viewer_controller_test.rb
index 6d35e15..b0be9fa 100644
--- a/test/functional/content_viewer_controller_test.rb
+++ b/test/functional/content_viewer_controller_test.rb
@@ -85,5 +85,24 @@ class ContentViewerControllerTest < Test::Unit::TestCase
     end
   end
 
+  should 'produce a download-like when article is not text/html' do
+
+    # for example, RSS feeds 
+    profile = create_user('someone').person
+    page = profile.articles.build(:name => 'myarticle', :body => 'the body of the text')
+    page.save!
+
+    feed = RssFeed.new(:name => 'feed')
+    feed.profile = profile
+    feed.save!
+
+    get :view_page, :profile => 'someone', :page => [ 'feed' ]
+
+    assert_response :success
+    assert_match /^text\/xml/, @response.headers['Content-Type']
+
+    assert_equal feed.data, @response.body
+  end
+
 
 end
diff --git a/test/unit/rss_feed_test.rb b/test/unit/rss_feed_test.rb
new file mode 100644
index 0000000..2eb6caf
--- /dev/null
+++ b/test/unit/rss_feed_test.rb
@@ -0,0 +1,50 @@
+require File.dirname(__FILE__) + '/../test_helper'
+
+class RssFeedTest < Test::Unit::TestCase
+
+  should 'indicate the correct mime/type' do
+    assert_equal 'text/xml', RssFeed.new.mime_type
+  end
+
+  should 'store settings in a hash serialized into body field' do
+    flunk 'pending'
+  end
+
+  should 'list recent articles of profile when top-level' do
+    profile = create_user('testuser').person
+    a1 = profile.articles.build(:name => 'article 1'); a1.save!
+    a2 = profile.articles.build(:name => 'article 2'); a2.save!
+    a3 = profile.articles.build(:name => 'article 3'); a3.save!
+
+    feed = RssFeed.new(:name => 'feed')
+    feed.profile = profile
+    feed.save!
+  
+    rss = feed.data
+    assert_match /<title>article 1<\/title>/, rss
+    assert_match /<title>article 2<\/title>/, rss
+    assert_match /<title>article 3<\/title>/, rss
+  end
+
+  should 'list recent article from parent article' do
+    profile = create_user('testuser').person
+    feed = RssFeed.new
+    feed.expects(:profile).returns(profile).at_least_once
+    array = []
+    profile.expects(:recent_documents).returns(array)
+    feed.data
+  end
+
+  should 'be able to choose to put abstract or entire body on feed' do
+    flunk 'pending'
+  end
+
+  should 'be able to choose if search in all articles or in subarticles of parent' do
+    flunk 'pending'
+  end
+
+  should 'be able to indicate maximum number of items' do
+    flunk 'pending'
+  end
+
+end
--
libgit2 0.21.2