aboutsummaryrefslogtreecommitdiffstats
path: root/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/deflater.rb
diff options
context:
space:
mode:
Diffstat (limited to 'actionpack/lib/action_dispatch/vendor/rack-1.0/rack/deflater.rb')
-rw-r--r--actionpack/lib/action_dispatch/vendor/rack-1.0/rack/deflater.rb85
1 files changed, 0 insertions, 85 deletions
diff --git a/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/deflater.rb b/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/deflater.rb
deleted file mode 100644
index a42b7477ae..0000000000
--- a/actionpack/lib/action_dispatch/vendor/rack-1.0/rack/deflater.rb
+++ /dev/null
@@ -1,85 +0,0 @@
-require "zlib"
-require "stringio"
-require "time" # for Time.httpdate
-require 'rack/utils'
-
-module Rack
- class Deflater
- def initialize(app)
- @app = app
- end
-
- def call(env)
- status, headers, body = @app.call(env)
- headers = Utils::HeaderHash.new(headers)
-
- # Skip compressing empty entity body responses and responses with
- # no-transform set.
- if Utils::STATUS_WITH_NO_ENTITY_BODY.include?(status) ||
- headers['Cache-Control'].to_s =~ /\bno-transform\b/
- return [status, headers, body]
- end
-
- request = Request.new(env)
-
- encoding = Utils.select_best_encoding(%w(gzip deflate identity),
- request.accept_encoding)
-
- # Set the Vary HTTP header.
- vary = headers["Vary"].to_s.split(",").map { |v| v.strip }
- unless vary.include?("*") || vary.include?("Accept-Encoding")
- headers["Vary"] = vary.push("Accept-Encoding").join(",")
- end
-
- case encoding
- when "gzip"
- mtime = headers.key?("Last-Modified") ?
- Time.httpdate(headers["Last-Modified"]) : Time.now
- body = self.class.gzip(body, mtime)
- size = Rack::Utils.bytesize(body)
- headers = headers.merge("Content-Encoding" => "gzip", "Content-Length" => size.to_s)
- [status, headers, [body]]
- when "deflate"
- body = self.class.deflate(body)
- size = Rack::Utils.bytesize(body)
- headers = headers.merge("Content-Encoding" => "deflate", "Content-Length" => size.to_s)
- [status, headers, [body]]
- when "identity"
- [status, headers, body]
- when nil
- message = "An acceptable encoding for the requested resource #{request.fullpath} could not be found."
- [406, {"Content-Type" => "text/plain", "Content-Length" => message.length.to_s}, [message]]
- end
- end
-
- def self.gzip(body, mtime)
- io = StringIO.new
- gzip = Zlib::GzipWriter.new(io)
- gzip.mtime = mtime
-
- # TODO: Add streaming
- body.each { |part| gzip << part }
-
- gzip.close
- return io.string
- end
-
- DEFLATE_ARGS = [
- Zlib::DEFAULT_COMPRESSION,
- # drop the zlib header which causes both Safari and IE to choke
- -Zlib::MAX_WBITS,
- Zlib::DEF_MEM_LEVEL,
- Zlib::DEFAULT_STRATEGY
- ]
-
- # Loosely based on Mongrel's Deflate handler
- def self.deflate(body)
- deflater = Zlib::Deflate.new(*DEFLATE_ARGS)
-
- # TODO: Add streaming
- body.each { |part| deflater << part }
-
- return deflater.finish
- end
- end
-end