diff options
Diffstat (limited to 'actionpack/lib/action_controller/caching')
| -rw-r--r-- | actionpack/lib/action_controller/caching/pages.rb | 51 |
1 files changed, 39 insertions, 12 deletions
diff --git a/actionpack/lib/action_controller/caching/pages.rb b/actionpack/lib/action_controller/caching/pages.rb index 957bb7de6b..159f718029 100644 --- a/actionpack/lib/action_controller/caching/pages.rb +++ b/actionpack/lib/action_controller/caching/pages.rb @@ -16,7 +16,7 @@ module ActionController #:nodoc: # caches_page :show, :new # end # - # This will generate cache files such as <tt>weblog/show/5.html</tt> and <tt>weblog/new.html</tt>, which match the URLs used + # This will generate cache files such as <tt>weblog/show/5.html</tt> and <tt>weblog/new.html</tt>, which match the URLs used # that would normally trigger dynamic page generation. Page caching works by configuring a web server to first check for the # existence of files on disk, and to serve them directly when found, without passing the request through to Action Pack. # This is much faster than handling the full dynamic request in the usual way. @@ -38,23 +38,25 @@ module ActionController #:nodoc: extend ActiveSupport::Concern included do - ## - # :singleton-method: # The cache directory should be the document root for the web server and is set using <tt>Base.page_cache_directory = "/document/root"</tt>. # For Rails, this directory has already been set to Rails.public_path (which is usually set to <tt>Rails.root + "/public"</tt>). Changing # this setting can be useful to avoid naming conflicts with files in <tt>public/</tt>, but doing so will likely require configuring your # web server to look in the new location for cached files. - config_accessor :page_cache_directory + class_attribute :page_cache_directory self.page_cache_directory ||= '' - ## - # :singleton-method: # Most Rails requests do not have an extension, such as <tt>/weblog/new</tt>. In these cases, the page caching mechanism will add one in # order to make it easy for the cached files to be picked up properly by the web server. By default, this cache extension is <tt>.html</tt>. # If you want something else, like <tt>.php</tt> or <tt>.shtml</tt>, just set Base.page_cache_extension. In cases where a request already has an # extension, such as <tt>.xml</tt> or <tt>.rss</tt>, page caching will not add an extension. This allows it to work well with RESTful apps. - config_accessor :page_cache_extension + class_attribute :page_cache_extension self.page_cache_extension ||= '.html' + + # The compression used for gzip. If false (default), the page is not compressed. + # If can be a symbol showing the ZLib compression method, for example, :best_compression + # or :best_speed or an integer configuring the compression level. + class_attribute :page_cache_compression + self.page_cache_compression ||= false end module ClassMethods @@ -66,24 +68,31 @@ module ActionController #:nodoc: instrument_page_cache :expire_page, path do File.delete(path) if File.exist?(path) + File.delete(path + '.gz') if File.exist?(path + '.gz') end end # Manually cache the +content+ in the key determined by +path+. Example: # cache_page "I'm the cached content", "/lists/show" - def cache_page(content, path, extension = nil) + def cache_page(content, path, extension = nil, gzip = Zlib::BEST_COMPRESSION) return unless perform_caching path = page_cache_path(path, extension) instrument_page_cache :write_page, path do FileUtils.makedirs(File.dirname(path)) File.open(path, "wb+") { |f| f.write(content) } + if gzip + Zlib::GzipWriter.open(path + '.gz', gzip) { |f| f.write(content) } + end end end - # Caches the +actions+ using the page-caching approach that'll store the cache in a path within the page_cache_directory that + # Caches the +actions+ using the page-caching approach that'll store + # the cache in a path within the page_cache_directory that # matches the triggering url. # + # You can also pass a :gzip option to override the class configuration one. + # # Usage: # # # cache the index action @@ -91,10 +100,28 @@ module ActionController #:nodoc: # # # cache the index action except for JSON requests # caches_page :index, :if => Proc.new { |c| !c.request.format.json? } + # + # # don't gzip images + # caches_page :image, :gzip => false def caches_page(*actions) return unless perform_caching options = actions.extract_options! - after_filter({:only => actions}.merge(options)) { |c| c.cache_page } + + gzip_level = options.fetch(:gzip, page_cache_compression) + gzip_level = case gzip_level + when Symbol + Zlib.const_get(gzip_level.to_s.upcase) + when Fixnum + gzip_level + when false + nil + else + Zlib::BEST_COMPRESSION + end + + after_filter({:only => actions}.merge(options)) do |c| + c.cache_page(nil, nil, gzip_level) + end end private @@ -136,7 +163,7 @@ module ActionController #:nodoc: # Manually cache the +content+ in the key determined by +options+. If no content is provided, the contents of response.body is used. # If no options are provided, the url of the current request being handled is used. Example: # cache_page "I'm the cached content", :controller => "lists", :action => "show" - def cache_page(content = nil, options = nil) + def cache_page(content = nil, options = nil, gzip = Zlib::BEST_COMPRESSION) return unless self.class.perform_caching && caching_allowed? path = case options @@ -152,7 +179,7 @@ module ActionController #:nodoc: extension = ".#{type_symbol}" end - self.class.cache_page(content || response.body, path, extension) + self.class.cache_page(content || response.body, path, extension, gzip) end end |