diff options
Diffstat (limited to 'actionpack/lib/action_dispatch/vendor/rack-1.0/rack/conditionalget.rb')
-rw-r--r-- | actionpack/lib/action_dispatch/vendor/rack-1.0/rack/conditionalget.rb | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/conditionalget.rb b/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/conditionalget.rb deleted file mode 100644 index 7bec824181..0000000000 --- a/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/conditionalget.rb +++ /dev/null @@ -1,45 +0,0 @@ -require 'rack/utils' - -module Rack - - # Middleware that enables conditional GET using If-None-Match and - # If-Modified-Since. The application should set either or both of the - # Last-Modified or Etag response headers according to RFC 2616. When - # either of the conditions is met, the response body is set to be zero - # length and the response status is set to 304 Not Modified. - # - # Applications that defer response body generation until the body's each - # message is received will avoid response body generation completely when - # a conditional GET matches. - # - # Adapted from Michael Klishin's Merb implementation: - # http://github.com/wycats/merb-core/tree/master/lib/merb-core/rack/middleware/conditional_get.rb - class ConditionalGet - def initialize(app) - @app = app - end - - def call(env) - return @app.call(env) unless %w[GET HEAD].include?(env['REQUEST_METHOD']) - - status, headers, body = @app.call(env) - headers = Utils::HeaderHash.new(headers) - if etag_matches?(env, headers) || modified_since?(env, headers) - status = 304 - body = [] - end - [status, headers, body] - end - - private - def etag_matches?(env, headers) - etag = headers['Etag'] and etag == env['HTTP_IF_NONE_MATCH'] - end - - def modified_since?(env, headers) - last_modified = headers['Last-Modified'] and - last_modified == env['HTTP_IF_MODIFIED_SINCE'] - end - end - -end |