1 # -*- encoding: binary -*-
9 # Unicorn module containing all of the classes (include C extensions) for
10 # running a Unicorn web server. It contains a minimalist HTTP server with just
11 # enough functionality to service web application requests fast as possible.
14 # \Unicorn exposes very little of an user-visible API and most of its
15 # internals are subject to change. \Unicorn is designed to host Rack
16 # applications, so applications should be written against the Rack SPEC
17 # and not \Unicorn internals.
20 # Raised inside TeeInput when a client closes the socket inside the
21 # application dispatch. This is always raised with an empty backtrace
22 # since there is nothing in the application stack that is responsible
23 # for client shutdowns/disconnects. This exception is visible to Rack
24 # applications unless PrereadInput middleware is loaded.
25 class ClientShutdown < EOFError
30 # This returns a lambda to pass in as the app, this does not "build" the
31 # app (which we defer based on the outcome of "preload_app" in the
32 # Unicorn config). The returned lambda will be called when it is
33 # time to build the app.
34 def self.builder(ru, op)
35 # allow Configurator to parse cli switches embedded in the ru file
36 op = Unicorn::Configurator::RACKUP.merge!(:file => ru, :optparse => op)
38 # Op is going to get cleared before the returned lambda is called, so
39 # save this value so that it's still there when we need it:
40 no_default_middleware = op[:no_default_middleware]
42 # always called after config file parsing, may be called after forking
47 raw.sub!(/^__END__\n.*/, '')
48 eval("Rack::Builder.new {(\n#{raw}\n)}.to_app", TOPLEVEL_BINDING, ru)
51 Object.const_get(File.basename(ru, '.rb').capitalize)
54 pp({ :inner_app => inner_app }) if $DEBUG
56 return inner_app if no_default_middleware
58 # return value, matches rackup defaults based on env
59 # Unicorn does not support persistent connections, but Rainbows!
60 # and Zbatery both do. Users accustomed to the Rack::Server default
61 # middlewares will need ContentLength/Chunked middlewares.
65 use Rack::ContentLength
67 use Rack::CommonLogger, $stderr
68 use Rack::ShowExceptions
74 use Rack::ContentLength
76 use Rack::CommonLogger, $stderr
85 # returns an array of strings representing TCP listen socket addresses
86 # and Unix domain socket paths. This is useful for use with
87 # Raindrops::Middleware under Linux: http://raindrops.bogomips.org/
88 def self.listener_names
89 Unicorn::HttpServer::LISTENERS.map do |io|
90 Unicorn::SocketHelper.sock_name(io)
91 end + Unicorn::HttpServer::NEW_LISTENERS
94 def self.log_error(logger, prefix, exc)
96 message = message.dump if /[[:cntrl:]]/ =~ message
97 logger.error "#{prefix}: #{message} (#{exc.class})"
98 exc.backtrace.each { |line| logger.error(line) }
103 require 'unicorn/const'
104 require 'unicorn/socket_helper'
105 require 'unicorn/stream_input'
106 require 'unicorn/tee_input'
107 require 'unicorn/http_request'
108 require 'unicorn/configurator'
109 require 'unicorn/tmpio'
110 require 'unicorn/util'
111 require 'unicorn/http_response'
112 require 'unicorn/worker'
113 require 'unicorn/http_server'