diff options
Diffstat (limited to 'actionpack/lib/action_controller/new_base/conditional_get.rb')
| -rw-r--r-- | actionpack/lib/action_controller/new_base/conditional_get.rb | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/actionpack/lib/action_controller/new_base/conditional_get.rb b/actionpack/lib/action_controller/new_base/conditional_get.rb index 116ce34494..d287ec4994 100644 --- a/actionpack/lib/action_controller/new_base/conditional_get.rb +++ b/actionpack/lib/action_controller/new_base/conditional_get.rb @@ -1,12 +1,15 @@ module ActionController module ConditionalGet - + extend ActiveSupport::Concern + + include RackConvenience + # Sets the etag, last_modified, or both on the response and renders a # "304 Not Modified" response if the request is already fresh. # # Parameters: # * <tt>:etag</tt> - # * <tt>:last_modified</tt> + # * <tt>:last_modified</tt> # * <tt>:public</tt> By default the Cache-Control header is private, set this to true if you want your application to be cachable by other devices (proxy caches). # # Example: @@ -18,14 +21,14 @@ module ActionController # # This will render the show template if the request isn't sending a matching etag or # If-Modified-Since header and just a "304 Not Modified" response if there's a match. - # + # def fresh_when(options) options.assert_valid_keys(:etag, :last_modified, :public) response.etag = options[:etag] if options[:etag] response.last_modified = options[:last_modified] if options[:last_modified] - - if options[:public] + + if options[:public] cache_control = response.headers["Cache-Control"].split(",").map {|k| k.strip } cache_control.delete("private") cache_control.delete("no-cache") @@ -36,8 +39,8 @@ module ActionController if request.fresh?(response) head :not_modified end - end - + end + # Return a response that has no content (merely headers). The options # argument is interpreted to be a hash of header names and values. # This allows you to easily return a response that consists only of @@ -64,8 +67,8 @@ module ActionController end render :nothing => true, :status => status - end - + end + # Sets the etag and/or last_modified on the response and checks it against # the client request. If the request doesn't match the options provided, the # request is considered stale and should be generated from scratch. Otherwise, @@ -73,7 +76,7 @@ module ActionController # # Parameters: # * <tt>:etag</tt> - # * <tt>:last_modified</tt> + # * <tt>:last_modified</tt> # * <tt>:public</tt> By default the Cache-Control header is private, set this to true if you want your application to be cachable by other devices (proxy caches). # # Example: @@ -92,7 +95,7 @@ module ActionController fresh_when(options) !request.fresh?(response) end - + # Sets a HTTP 1.1 Cache-Control header. Defaults to issuing a "private" instruction, so that # intermediate caches shouldn't cache the response. # @@ -114,10 +117,10 @@ module ActionController else cache_control << "private" end - + # This allows for additional headers to be passed through like 'max-stale' => 5.hours cache_control += options.symbolize_keys.reject{|k,v| k == :public || k == :private }.map{ |k,v| v == true ? k.to_s : "#{k.to_s}=#{v.to_s}"} - + response.headers["Cache-Control"] = cache_control.join(', ') end @@ -126,6 +129,5 @@ module ActionController def expires_now #:doc: response.headers["Cache-Control"] = "no-cache" end - end -end
\ No newline at end of file +end |