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Description: Phusion Passenger (mod_rails)
Homepage: http://www.modrails.com/
Clone URL: git://github.com/FooBarWidget/passenger.git
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passenger / lib / passenger / rack / request_handler.rb
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ad9d1365 » Hongli Lai (Phusion) 2008-05-09 Refactor stuff in favor of ... 1 # Phusion Passenger - http://www.modrails.com/
2 # Copyright (C) 2008 Phusion
3 #
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; version 2 of the License.
7 #
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
12 #
13 # You should have received a copy of the GNU General Public License along
14 # with this program; if not, write to the Free Software Foundation, Inc.,
15 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
16
17 require 'passenger/passenger'
18 module Passenger
19 module Rack
20
21 # A request handler for Rack applications.
22 class RequestHandler < AbstractRequestHandler
23 # Constants which exist to relieve Ruby's garbage collector.
24 RACK_VERSION = "rack.version" # :nodoc:
25 RACK_VERSION_VALUE = [0, 1] # :nodoc:
26 RACK_INPUT = "rack.input" # :nodoc:
27 RACK_ERRORS = "rack.errors" # :nodoc:
28 RACK_MULTITHREAD = "rack.multithread" # :nodoc:
29 RACK_MULTIPROCESS = "rack.multiprocess" # :nodoc:
30 RACK_RUN_ONCE = "rack.run_once" # :nodoc:
31 RACK_URL_SCHEME = "rack.url_scheme" # :nodoc:
32 HTTPS = "HTTPS" # :nodoc:
33 HTTPS_DOWNCASE = "https" # :nodoc:
34 HTTP = "http" # :nodoc:
35 YES = "yes" # :nodoc:
36 ON = "on" # :nodoc:
37 ONE = "one" # :nodoc:
38 CRLF = "\r\n" # :nodoc:
39
40 # +app+ is the Rack application object.
41 def initialize(owner_pipe, app)
42 super(owner_pipe)
43 @app = app
44 end
45
46 protected
47 # Overrided method.
48 def process_request(env, input, output)
49 env[RACK_VERSION] = RACK_VERSION_VALUE
50 env[RACK_INPUT] = input
51 env[RACK_ERRORS] = STDERR
52 env[RACK_MULTITHREAD] = false
53 env[RACK_MULTIPROCESS] = true
54 env[RACK_RUN_ONCE] = false
55 if env[HTTPS] == YES || env[HTTPS] == ON || env[HTTPS] == ONE
56 env[RACK_URL_SCHEME] = HTTPS_DOWNCASE
57 else
58 env[RACK_URL_SCHEME] = HTTP
59 end
60
61 status, headers, body = @app.call(env)
62 begin
63 output.write("Status: #{status}\r\n")
64 headers[X_POWERED_BY] = PASSENGER_HEADER
65 headers.each do |k, vs|
66 vs.each do |v|
67 output.write("#{k}: #{v}\r\n")
68 end
69 end
70 output.write(CRLF)
71 body.each do |s|
72 output.write(s)
73 end
74 ensure
75 body.close if body.respond_to?(:close)
76 end
77 end
78 end
79
80 end # module Rack
81 end # module Passenger