diff options
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.rb | 85 |
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 |