Merged updates from trunk into stable branch
[feedcatcher.git] / vendor / rails / actionpack / lib / action_controller / vendor / rack-1.0 / rack / static.rb
diff --git a/vendor/rails/actionpack/lib/action_controller/vendor/rack-1.0/rack/static.rb b/vendor/rails/actionpack/lib/action_controller/vendor/rack-1.0/rack/static.rb
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+module Rack
+
+  # The Rack::Static middleware intercepts requests for static files
+  # (javascript files, images, stylesheets, etc) based on the url prefixes
+  # passed in the options, and serves them using a Rack::File object. This
+  # allows a Rack stack to serve both static and dynamic content.
+  #
+  # Examples:
+  #     use Rack::Static, :urls => ["/media"]
+  #     will serve all requests beginning with /media from the "media" folder
+  #     located in the current directory (ie media/*).
+  #
+  #     use Rack::Static, :urls => ["/css", "/images"], :root => "public"
+  #     will serve all requests beginning with /css or /images from the folder
+  #     "public" in the current directory (ie public/css/* and public/images/*)
+
+  class Static
+
+    def initialize(app, options={})
+      @app = app
+      @urls = options[:urls] || ["/favicon.ico"]
+      root = options[:root] || Dir.pwd
+      @file_server = Rack::File.new(root)
+    end
+
+    def call(env)
+      path = env["PATH_INFO"]
+      can_serve = @urls.any? { |url| path.index(url) == 0 }
+
+      if can_serve
+        @file_server.call(env)
+      else
+        @app.call(env)
+      end
+    end
+
+  end
+end