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+require 'action_controller/request'
+require 'action_controller/response'
+require 'action_controller/url_rewriter'
+require 'action_controller/support/class_attribute_accessors'
+require 'action_controller/support/class_inheritable_attributes'
+require 'action_controller/support/inflector'
+
+module ActionController #:nodoc:
+  class ActionControllerError < StandardError #:nodoc:
+  end
+  class SessionRestoreError < ActionControllerError #:nodoc:
+  end
+  class MissingTemplate < ActionControllerError #:nodoc:
+  end
+  class UnknownAction < ActionControllerError #:nodoc:
+  end
+
+  # Action Controllers are made up of one or more actions that performs its purpose and then either renders a template or
+  # redirects to another action. An action is defined as a public method on the controller, which will automatically be 
+  # made accessible to the web-server through a mod_rewrite mapping. A sample controller could look like this:
+  #
+  #   class GuestBookController < ActionController::Base
+  #     def index
+  #       @entries = Entry.find_all
+  #     end
+  #     
+  #     def sign
+  #       Entry.create(@params["entry"])
+  #       redirect_to :action => "index"
+  #     end
+  #   end
+  #
+  #   GuestBookController.template_root = "templates/"
+  #   GuestBookController.process_cgi
+  #
+  # All actions assume that you want to render a template matching the name of the action at the end of the performance
+  # unless you tell it otherwise. The index action complies with this assumption, so after populating the @entries instance
+  # variable, the GuestBookController will render "templates/guestbook/index.rhtml".
+  #
+  # Unlike index, the sign action isn't interested in rendering a template. So after performing its main purpose (creating a 
+  # new entry in the guest book), it sheds the rendering assumption and initiates a redirect instead. This redirect works by
+  # returning an external "302 Moved" HTTP response that takes the user to the index action.
+  #
+  # The index and sign represent the two basic action archetypes used in Action Controllers. Get-and-show and do-and-redirect.
+  # Most actions are variations of these themes.
+  #
+  # Also note that it's the final call to <tt>process_cgi</tt> that actually initiates the action performance. It will extract
+  # request and response objects from the CGI
+  #
+  # == Requests
+  #
+  # Requests are processed by the Action Controller framework by extracting the value of the "action" key in the request parameters.
+  # This value should hold the name of the action to be performed. Once the action has been identified, the remaining
+  # request parameters, the session (if one is available), and the full request with all the http headers are made available to
+  # the action through instance variables. Then the action is performed.
+  #
+  # The full request object is available in @request and is primarily used to query for http headers. These queries are made by
+  # accessing the environment hash, like this:
+  #
+  #   def hello_ip
+  #     location = @request.env["REMOTE_ADDRESS"]
+  #     render_text "Hello stranger from #{location}"
+  #   end
+  #
+  # == Parameters
+  #
+  # All request parameters whether they come from a GET or POST request, or from the URL, are available through the @params hash.
+  # So an action that was performed through /weblog/list?category=All&limit=5 will include { "category" => "All", "limit" => 5 }
+  # in @params.
+  #
+  # It's also possible to construct multi-dimensional parameter hashes by specifying keys using brackets, such as:
+  #
+  #   <input type="text" name="post[name]" value="david">
+  #   <input type="text" name="post[address]" value="hyacintvej">
+  #
+  # A request stemming from a form holding these inputs will include { "post" # => { "name" => "david", "address" => "hyacintvej" } }.
+  # If the address input had been named "post[address][street]", the @params would have included 
+  # { "post" => { "address" => { "street" => "hyacintvej" } } }. There's no limit to the depth of the nesting.
+  #
+  # == Sessions
+  #
+  # Sessions allows you to store objects in memory between requests. This is useful for objects that are not yet ready to be persisted,
+  # such as a Signup object constructed in a multi-paged process, or objects that don't change much and are needed all the time, such
+  # as a User object for a system that requires login. The session should not be used, however, as a cache for objects where it's likely 
+  # they could be changed unknowingly. It's usually too much work to keep it all synchronized -- something databases already excel at.
+  #
+  # You can place objects in the session by using the <tt>@session</tt> hash:
+  #
+  #   @session["person"] = Person.authenticate(user_name, password)
+  #
+  # And retrieved again through the same hash:
+  #
+  #   Hello #{@session["person"]}
+  #
+  # Any object can be placed in the session (as long as it can be Marshalled). But remember that 1000 active sessions each storing a
+  # 50kb object could lead to a 50MB memory overhead. In other words, think carefully about size and caching before resorting to the use
+  # of the session.
+  #
+  # == Responses
+  #
+  # Each action results in a response, which holds the headers and document to be sent to the user's browser. The actual response
+  # object is generated automatically through the use of renders and redirects, so it's normally nothing you'll need to be concerned about.
+  #
+  # == Renders
+  #
+  # Action Controller sends content to the user by using one of five rendering methods. The most versatile and common is the rendering
+  # of a template. Included in the Action Pack is the Action View, which enables rendering of ERb templates. It's automatically configured.
+  # The controller passes objects to the view by assigning instance variables:
+  #
+  #   def show
+  #     @post = Post.find(@params["id"])
+  #   end
+  #
+  # Which are then automatically available to the view:
+  #
+  #   Title: <%= @post.title %>
+  #
+  # You don't have to rely on the automated rendering. Especially actions that could result in the rendering of different templates will use
+  # the manual rendering methods:
+  #
+  #   def search
+  #     @results = Search.find(@params["query"])
+  #     case @results
+  #       when 0 then render "weblog/no_results"
+  #       when 1 then render_action "show"
+  #       when 2..10 then render_action "show_many"
+  #     end
+  #   end
+  #
+  # Read more about writing ERb and Builder templates in link:classes/ActionView/Base.html.
+  #
+  # == Redirects
+  #
+  # Redirecting is what actions that update the model do when they're done. The <tt>save_post</tt> method shouldn't be responsible for also
+  # showing the post once it's saved -- that's the job for <tt>show_post</tt>. So once <tt>save_post</tt> has completed its business, it'll
+  # redirect to <tt>show_post</tt>. All redirects are external, which means that when the user refreshes his browser, it's not going to save
+  # the post again, but rather just show it one more time.
+  # 
+  # This sounds fairly simple, but the redirection is complicated by the quest for a phenomenon known as "pretty urls". Instead of accepting
+  # the dreadful beings that is "weblog_controller?action=show&post_id=5", Action Controller goes out of its way to represent the former as
+  # "/weblog/show/5". And this is even the simple case. As an example of a more advanced pretty url consider
+  # "/library/books/ISBN/0743536703/show", which can be mapped to books_controller?action=show&type=ISBN&id=0743536703.
+  # 
+  # Redirects work by rewriting the URL of the current action. So if the show action was called by "/library/books/ISBN/0743536703/show", 
+  # we can redirect to an edit action simply by doing <tt>redirect_to(:action => "edit")</tt>, which could throw the user to 
+  # "/library/books/ISBN/0743536703/edit". Naturally, you'll need to setup the .htaccess (or other means of URL rewriting for the web server)
+  # to point to the proper controller and action in the first place, but once you have, it can be rewritten with ease.
+  # 
+  # Let's consider a bunch of examples on how to go from "/library/books/ISBN/0743536703/edit" to somewhere else:
+  #
+  #   redirect_to(:action => "show", :action_prefix => "XTC/123") =>
+  #     "http://www.singlefile.com/library/books/XTC/123/show"
+  #
+  #   redirect_to(:path_params => {"type" => "EXBC"}) =>
+  #     "http://www.singlefile.com/library/books/EXBC/0743536703/show"
+  #
+  #   redirect_to(:controller => "settings") => 
+  #     "http://www.singlefile.com/library/settings/"
+  #
+  # For more examples of redirecting options, have a look at the unit test in test/controller/url_test.rb. It's very readable and will give
+  # you an excellent understanding of the different options and what they do.
+  #
+  # == Environments
+  #
+  # Action Controller works out of the box with CGI, FastCGI, and mod_ruby. CGI and mod_ruby controllers are triggered just the same using:
+  #
+  #   WeblogController.process_cgi
+  #
+  # FastCGI controllers are triggered using:
+  #
+  #   FCGI.each_cgi{ |cgi| WeblogController.process_cgi(cgi) }
+  class Base
+    include ClassInheritableAttributes
+  
+    DEFAULT_RENDER_STATUS_CODE = "200 OK"
+  
+    DEFAULT_SEND_FILE_OPTIONS = {
+      :type         => 'application/octet_stream',
+      :disposition  => 'attachment',
+      :stream       => true, 
+      :buffer_size  => 4096
+    }
+
+
+    # Determines whether the view has access to controller internals @request, @response, @session, and @template.
+    # By default, it does.
+    @@view_controller_internals = true
+    cattr_accessor :view_controller_internals
+
+    # All requests are considered local by default, so everyone will be exposed to detailed debugging screens on errors.
+    # When the application is ready to go public, this should be set to false, and the protected method <tt>local_request?</tt>
+    # should instead be implemented in the controller to determine when debugging screens should be shown.
+    @@consider_all_requests_local = true
+    cattr_accessor :consider_all_requests_local
+
+    # When turned on (which is default), all dependencies are included using "load". This mean that any change is instant in cached
+    # environments like mod_ruby or FastCGI. When set to false, "require" is used, which is faster but requires server restart to
+    # be effective.
+    @@reload_dependencies = true
+    cattr_accessor :reload_dependencies
+
+    # Template root determines the base from which template references will be made. So a call to render("test/template")
+    # will be converted to "#{template_root}/test/template.rhtml".
+    cattr_accessor :template_root
+
+    # The logger is used for generating information on the action run-time (including benchmarking) if available.
+    # Can be set to nil for no logging. Compatible with both Ruby's own Logger and Log4r loggers.
+    cattr_accessor :logger
+    
+    # Determines which template class should be used by ActionController.
+    cattr_accessor :template_class
+
+    # Turn on +ignore_missing_templates+ if you want to unit test actions without making the associated templates.
+    cattr_accessor :ignore_missing_templates
+
+    # Holds the request object that's primarily used to get environment variables through access like
+    # <tt>@request.env["REQUEST_URI"]</tt>.
+    attr_accessor :request
+    
+    # Holds a hash of all the GET, POST, and Url parameters passed to the action. Accessed like <tt>@params["post_id"]</tt>
+    # to get the post_id. No type casts are made, so all values are returned as strings.
+    attr_accessor :params
+    
+    # Holds the response object that's primarily used to set additional HTTP headers through access like 
+    # <tt>@response.headers["Cache-Control"] = "no-cache"</tt>. Can also be used to access the final body HTML after a template
+    # has been rendered through @response.body -- useful for <tt>after_filter</tt>s that wants to manipulate the output,
+    # such as a OutputCompressionFilter.
+    attr_accessor :response
+    
+    # Holds a hash of objects in the session. Accessed like <tt>@session["person"]</tt> to get the object tied to the "person"
+    # key. The session will hold any type of object as values, but the key should be a string.
+    attr_accessor :session
+    
+    # Holds a hash of header names and values. Accessed like <tt>@headers["Cache-Control"]</tt> to get the value of the Cache-Control
+    # directive. Values should always be specified as strings.
+    attr_accessor :headers
+    
+    # Holds a hash of cookie names and values. Accessed like <tt>@cookies["user_name"]</tt> to get the value of the user_name cookie.
+    # This hash is read-only. You set new cookies using the cookie method.
+    attr_accessor :cookies
+    
+    # Holds the hash of variables that are passed on to the template class to be made available to the view. This hash
+    # is generated by taking a snapshot of all the instance variables in the current scope just before a template is rendered.
+    attr_accessor :assigns
+
+    class << self
+      # Factory for the standard create, process loop where the controller is discarded after processing.
+      def process(request, response) #:nodoc:
+        new.process(request, response)
+      end
+
+      # Converts the class name from something like "OneModule::TwoModule::NeatController" to "NeatController".
+      def controller_class_name
+        Inflector.demodulize(name)
+      end
+
+      # Converts the class name from something like "OneModule::TwoModule::NeatController" to "neat".
+      def controller_name
+        Inflector.underscore(controller_class_name.sub(/Controller/, ""))
+      end
+
+      # Loads the <tt>file_name</tt> if reload_dependencies is true or requires if it's false.
+      def require_or_load(file_name)
+        reload_dependencies ? load("#{file_name}.rb") : require(file_name)
+      end
+    end
+
+    public
+      # Extracts the action_name from the request parameters and performs that action.
+      def process(request, response) #:nodoc:
+        initialize_template_class(response)
+        assign_shortcuts(request, response)
+        initialize_current_url
+
+        log_processing unless logger.nil?
+        perform_action
+        close_session
+
+        return @response
+      end
+
+      # Returns an URL that has been rewritten according to the hash of +options+ (for doing a complete redirect, use redirect_to). The
+      # valid keys in options are specified below with an example going from "/library/books/ISBN/0743536703/show" (mapped to
+      # books_controller?action=show&type=ISBN&id=0743536703):
+      #
+      #            .---> controller      .--> action
+      #   /library/books/ISBN/0743536703/show
+      #   '------>      '--------------> action_prefix
+      #    controller_prefix 
+      #
+      # * <tt>:controller_prefix</tt> - specifies the string before the controller name, which would be "/library" for the example.
+      #   Called with "/shop" gives "/shop/books/ISBN/0743536703/show".
+      # * <tt>:controller</tt> - specifies a new controller and clears out everything after the controller name (including the action, 
+      #   the pre- and suffix, and all params), so called with "settings" gives "/library/settings/".
+      # * <tt>:action_prefix</tt> - specifies the string between the controller name and the action name, which would
+      #   be "/ISBN/0743536703" for the example. Called with "/XTC/123/" gives "/library/books/XTC/123/show".
+      # * <tt>:action</tt> - specifies a new action, so called with "edit" gives "/library/books/ISBN/0743536703/edit"
+      # * <tt>:action_suffix</tt> - specifies the string after the action name, which would be empty for the example.
+      #   Called with "/detailed" gives "/library/books/ISBN/0743536703/detailed".
+      # * <tt>:path_params</tt> - specifies a hash that contains keys mapping to the request parameter names. In the example, 
+      #   { "type" => "ISBN", "id" => "0743536703" } would be the path_params. It serves as another way of replacing part of
+      #   the action_prefix or action_suffix. So passing { "type" => "XTC" } would give "/library/books/XTC/0743536703/show".
+      # * <tt>:id</tt> - shortcut where ":id => 5" can be used instead of specifying :path_params => { "id" => 5 }.
+      #   Called with "123" gives "/library/books/ISBN/123/show".
+      # * <tt>:params</tt> - specifies a hash that represents the regular request parameters, such as { "cat" => 1, 
+      #   "origin" => "there"} that would give "?cat=1&origin=there". Called with { "temporary" => 1 } in the example would give
+      #   "/library/books/ISBN/0743536703/show?temporary=1"
+      # * <tt>:anchor</tt> - specifies the anchor name to be appended to the path. Called with "x14" would give
+      #   "/library/books/ISBN/0743536703/show#x14"
+      # * <tt>:only_path</tt> - if true, returns the absolute URL (omitting the protocol, host name, and port).
+      #
+      # Naturally, you can combine multiple options in a single redirect. Examples:
+      #
+      #   redirect_to(:controller_prefix => "/shop", :controller => "settings")
+      #   redirect_to(:action => "edit", :id => 3425)
+      #   redirect_to(:action => "edit", :path_params => { "type" => "XTC" }, :params => { "temp" => 1})
+      #   redirect_to(:action => "publish", :action_prefix => "/published", :anchor => "x14")
+      #
+      # Instead of passing an options hash, you can also pass a method reference in the form of a symbol. Consider this example:
+      #
+      #   class WeblogController < ActionController::Base
+      #     def update
+      #       # do some update
+      #       redirect_to :dashboard_url
+      #     end
+      #     
+      #     protected
+      #       def dashboard_url
+      #         url_for :controller => (@project.active? ? "project" : "account"), :action => "dashboard"
+      #       end
+      #   end
+      def url_for(options = {}, *parameters_for_method_reference) #:doc:
+        case options
+          when String then options
+          when Symbol then send(options, *parameters_for_method_reference)
+          when Hash   then @url.rewrite(rewrite_options(options))
+        end
+      end
+
+      def module_name
+        @params["module"]
+      end
+
+      # Converts the class name from something like "OneModule::TwoModule::NeatController" to "NeatController".
+      def controller_class_name
+        self.class.controller_class_name
+      end
+
+      # Converts the class name from something like "OneModule::TwoModule::NeatController" to "neat".
+      def controller_name
+        self.class.controller_name
+      end
+
+      # Returns the name of the action this controller is processing.
+      def action_name
+        @params["action"] || "index"
+      end
+
+    protected
+      # Renders the template specified by <tt>template_name</tt>, which defaults to the name of the current controller and action.
+      # So calling +render+ in WeblogController#show will attempt to render "#{template_root}/weblog/show.rhtml" or 
+      # "#{template_root}/weblog/show.rxml" (in that order). The template_root is set on the ActionController::Base class and is 
+      # shared by all controllers. It's also possible to pass a status code using the second parameter. This defaults to "200 OK", 
+      # but can be changed, such as by calling <tt>render("weblog/error", "500 Error")</tt>.
+      def render(template_name = nil, status = nil) #:doc:
+        render_file(template_name || default_template_name, status, true)
+      end
+      
+      # Works like render, but instead of requiring a full template name, you can get by with specifying the action name. So calling
+      # <tt>render_action "show_many"</tt> in WeblogController#display will render "#{template_root}/weblog/show_many.rhtml" or 
+      # "#{template_root}/weblog/show_many.rxml".
+      def render_action(action_name, status = nil) #:doc:
+        render default_template_name(action_name), status
+      end
+      
+      # Works like render, but disregards the template_root and requires a full path to the template that needs to be rendered. Can be
+      # used like <tt>render_file "/Users/david/Code/Ruby/template"</tt> to render "/Users/david/Code/Ruby/template.rhtml" or
+      # "/Users/david/Code/Ruby/template.rxml".
+      def render_file(template_path, status = nil, use_full_path = false) #:doc:
+        assert_existance_of_template_file(template_path) if use_full_path
+        logger.info("Rendering #{template_path} (#{status || DEFAULT_RENDER_STATUS_CODE})") unless logger.nil?
+
+        add_variables_to_assigns
+        render_text(@template.render_file(template_path, use_full_path), status)
+      end
+      
+      # Renders the +template+ string, which is useful for rendering short templates you don't want to bother having a file for. So
+      # you'd call <tt>render_template "Hello, <%= @user.name %>"</tt> to greet the current user. Or if you want to render as Builder
+      # template, you could do <tt>render_template "xml.h1 @user.name", nil, "rxml"</tt>.
+      def render_template(template, status = nil, type = "rhtml") #:doc:
+        add_variables_to_assigns
+        render_text(@template.render_template(type, template), status)
+      end
+
+      # Renders the +text+ string without parsing it through any template engine. Useful for rendering static information as it's
+      # considerably faster than rendering through the template engine.
+      # Use block for response body if provided (useful for deferred rendering or streaming output).
+      def render_text(text = nil, status = nil, &block) #:doc:
+        add_variables_to_assigns
+        @response.headers["Status"] = status || DEFAULT_RENDER_STATUS_CODE
+        @response.body = block_given? ? block : text
+        @performed_render = true
+      end
+
+      # Sends the file by streaming it 4096 bytes at a time. This way the
+      # whole file doesn't need to be read into memory at once.  This makes
+      # it feasible to send even large files.
+      #
+      # Be careful to sanitize the path parameter if it coming from a web
+      # page.  send_file(@params['path']) allows a malicious user to
+      # download any file on your server.
+      #
+      # Options:
+      # * <tt>:filename</tt> - suggests a filename for the browser to use.
+      #   Defaults to File.basename(path).
+      # * <tt>:type</tt> - specifies an HTTP content type.
+      #   Defaults to 'application/octet-stream'.
+      # * <tt>:disposition</tt> - specifies whether the file will be shown inline or downloaded.  
+      #   Valid values are 'inline' and 'attachment' (default).
+      # * <tt>:streaming</tt> - whether to send the file to the user agent as it is read (true)
+      #   or to read the entire file before sending (false). Defaults to true.
+      # * <tt>:buffer_size</tt> - specifies size (in bytes) of the buffer used to stream the file.
+      #   Defaults to 4096.
+      #
+      # The default Content-Type and Content-Disposition headers are
+      # set to download arbitrary binary files in as many browsers as
+      # possible.  IE versions 4, 5, 5.5, and 6 are all known to have
+      # a variety of quirks (especially when downloading over SSL).
+      #
+      # Simple download:
+      #   send_file '/path/to.zip'
+      #
+      # Show a JPEG in browser:
+      #   send_file '/path/to.jpeg', :type => 'image/jpeg', :disposition => 'inline'
+      #
+      # Read about the other Content-* HTTP headers if you'd like to
+      # provide the user with more information (such as Content-Description).
+      # http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.11
+      #
+      # Also be aware that the document may be cached by proxies and browsers.
+      # The Pragma and Cache-Control headers declare how the file may be cached
+      # by intermediaries.  They default to require clients to validate with
+      # the server before releasing cached responses.  See
+      # http://www.mnot.net/cache_docs/ for an overview of web caching and
+      # http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9
+      # for the Cache-Control header spec.
+      def send_file(path, options = {})
+        raise MissingFile unless File.file?(path) and File.readable?(path)
+
+        options[:length]   ||= File.size(path)
+        options[:filename] ||= File.basename(path)
+        send_file_headers! options
+
+        if options[:stream]
+          render_text do
+            logger.info "Streaming file #{path}" unless logger.nil?
+            len = options[:buffer_size] || 4096
+            File.open(path, 'rb') do |file|
+              begin
+                while true
+                  $stdout.syswrite file.sysread(len)
+                end
+              rescue EOFError
+              end
+            end
+          end
+        else
+          logger.info "Sending file #{path}" unless logger.nil?
+          File.open(path, 'rb') { |file| render_text file.read }
+        end
+      end
+
+      # Send binary data to the user as a file download.  May set content type, apparent file name,
+      # and specify whether to show data inline or download as an attachment.
+      #
+      # Options:
+      # * <tt>:filename</tt> - Suggests a filename for the browser to use.
+      # * <tt>:type</tt> - specifies an HTTP content type.
+      #   Defaults to 'application/octet-stream'.
+      # * <tt>:disposition</tt> - specifies whether the file will be shown inline or downloaded.  
+      #   Valid values are 'inline' and 'attachment' (default).
+      #
+      # Generic data download:
+      #   send_data buffer
+      #
+      # Download a dynamically-generated tarball:
+      #   send_data generate_tgz('dir'), :filename => 'dir.tgz'
+      #
+      # Display an image Active Record in the browser:
+      #   send_data image.data, :type => image.content_type, :disposition => 'inline'
+      #
+      # See +send_file+ for more information on HTTP Content-* headers and caching.
+      def send_data(data, options = {})
+        logger.info "Sending data #{options[:filename]}" unless logger.nil?
+        send_file_headers! options.merge(:length => data.size)
+        render_text data
+      end
+
+      def rewrite_options(options)
+        if defaults = default_url_options(options)
+          defaults.merge(options)
+        else
+          options
+        end
+      end
+      
+      # Overwrite to implement a number of default options that all url_for-based methods will use. The default options should come in
+      # the form of a hash, just like the one you would use for url_for directly. Example:
+      #
+      #   def default_url_options(options)
+      #     { :controller_prefix => @project.active? ? "projects/" : "accounts/" }
+      #   end
+      #
+      # As you can infer from the example, this is mostly useful for situations where you want to centralize dynamic decisions about the
+      # urls as they stem from the business domain. Please note that any individual url_for call can always override the defaults set
+      # by this method.
+      def default_url_options(options) #:doc:
+      end
+      
+      # Redirects the browser to an URL that has been rewritten according to the hash of +options+ using a "302 Moved" HTTP header.
+      # See url_for for a description of the valid options.
+      def redirect_to(options = {}, *parameters_for_method_reference) #:doc:
+        if parameters_for_method_reference.empty?
+          @response.redirected_to = options
+          redirect_to_url(url_for(options))
+        else
+          @response.redirected_to, @response.redirected_to_method_params = options, parameters_for_method_reference
+          redirect_to_url(url_for(options, *parameters_for_method_reference))
+        end
+      end
+      
+      # Redirects the browser to the specified <tt>path</tt> within the current host (specified with a leading /). Used to sidestep
+      # the URL rewriting and go directly to a known path. Example: <tt>redirect_to_path "/images/screenshot.jpg"</tt>.
+      def redirect_to_path(path) #:doc:
+        redirect_to_url(@request.protocol + @request.host_with_port + path)
+      end
+
+      # Redirects the browser to the specified <tt>url</tt>. Used to redirect outside of the current application. Example:
+      # <tt>redirect_to_url "http://www.rubyonrails.org"</tt>.
+      def redirect_to_url(url) #:doc:
+        logger.info("Redirected to #{url}") unless logger.nil?
+        @response.redirect(url)
+        @performed_redirect = true
+      end
+
+      # Creates a new cookie that is sent along-side the next render or redirect command. API is the same as for CGI::Cookie.
+      # Examples:
+      #
+      #   cookie("name", "value1", "value2", ...)
+      #   cookie("name" => "name", "value" => "value")
+      #   cookie('name'    => 'name',
+      #          'value'   => ['value1', 'value2', ...],
+      #          'path'    => 'path',   # optional
+      #          'domain'  => 'domain', # optional
+      #          'expires' => Time.now, # optional
+      #          'secure'  => true      # optional
+      #   )
+      def cookie(*options) #:doc:
+        @response.headers["cookie"] << CGI::Cookie.new(*options)
+      end
+
+      # Resets the session by clearsing out all the objects stored within and initializing a new session object.
+      def reset_session #:doc:
+        @request.reset_session
+        @session = @request.session
+        @response.session = @session
+      end
+    
+    private
+      def initialize_template_class(response)
+        begin
+          response.template = template_class.new(template_root, {}, self)
+        rescue
+          raise "You must assign a template class through ActionController.template_class= before processing a request"
+        end
+        
+        @performed_render = @performed_redirect = false
+      end
+    
+      def assign_shortcuts(request, response)
+        @request, @params, @cookies = request, request.parameters, request.cookies
+
+        @response         = response
+        @response.session = request.session
+
+        @session  = @response.session
+        @template = @response.template
+        @assigns  = @response.template.assigns        
+        @headers  = @response.headers
+      end
+      
+      def initialize_current_url
+        @url = UrlRewriter.new(@request, controller_name, action_name)
+      end
+
+      def log_processing
+        logger.info "\n\nProcessing #{controller_class_name}\##{action_name} (for #{request_origin})"
+        logger.info "  Parameters: #{@params.inspect}"
+      end
+    
+      def perform_action
+        if action_methods.include?(action_name)
+          send(action_name)
+          render unless @performed_render || @performed_redirect
+        elsif template_exists? && template_public?
+          render
+        else
+          raise UnknownAction, "No action responded to #{action_name}", caller
+        end
+      end
+
+      def action_methods
+        action_controller_classes = self.class.ancestors.reject{ |a| [Object, Kernel].include?(a) }
+        action_controller_classes.inject([]) { |action_methods, klass| action_methods + klass.instance_methods(false) }
+      end
+
+      def add_variables_to_assigns
+        add_instance_variables_to_assigns
+        add_class_variables_to_assigns if view_controller_internals
+      end
+
+      def add_instance_variables_to_assigns
+        protected_variables_cache = protected_instance_variables
+        instance_variables.each do |var|
+          next if protected_variables_cache.include?(var)
+          @assigns[var[1..-1]] = instance_variable_get(var)
+        end
+      end
+
+      def add_class_variables_to_assigns
+        %w( template_root logger template_class ignore_missing_templates ).each do |cvar|
+          @assigns[cvar] = self.send(cvar)
+        end
+      end
+
+      def protected_instance_variables
+        if view_controller_internals
+          [ "@assigns", "@performed_redirect", "@performed_render" ]
+        else
+          [ "@assigns", "@performed_redirect", "@performed_render", "@request", "@response", "@session", "@cookies", "@template" ]
+        end
+      end
+
+      def request_origin
+        "#{@request.remote_ip} at #{Time.now.to_s}"
+      end
+      
+      def close_session
+        @session.close unless @session.nil? || Hash === @session
+      end
+      
+      def template_exists?(template_name = default_template_name)
+        @template.file_exists?(template_name)
+      end
+
+      def template_public?(template_name = default_template_name)
+        @template.file_public?(template_name)
+      end
+
+      def assert_existance_of_template_file(template_name)
+        unless template_exists?(template_name) || ignore_missing_templates
+          full_template_path = @template.send(:full_template_path, template_name, 'rhtml')
+          template_type = (template_name =~ /layouts/i) ? 'layout' : 'template'
+          raise(MissingTemplate, "Missing #{template_type} #{full_template_path}")
+        end
+      end
+
+      def send_file_headers!(options)
+        options.update(DEFAULT_SEND_FILE_OPTIONS.merge(options))
+        [:length, :type, :disposition].each do |arg|
+          raise ArgumentError, ":#{arg} option required" if options[arg].nil?
+        end
+
+        disposition = options[:disposition] || 'attachment'
+        disposition <<= %(; filename="#{options[:filename]}") if options[:filename]
+
+        @headers.update(
+          'Content-Length'            => options[:length],
+          'Content-Type'              => options[:type],
+          'Content-Disposition'       => disposition,
+          'Content-Transfer-Encoding' => 'binary'
+        );
+      end
+
+      def default_template_name(default_action_name = action_name)
+        module_name ? "#{module_name}/#{controller_name}/#{default_action_name}" : "#{controller_name}/#{default_action_name}"
+      end
+  end
+end