aboutsummaryrefslogtreecommitdiffstats
path: root/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/conditionalget.rb
diff options
context:
space:
mode:
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.rb45
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