1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
require 'active_support/core_ext/hash/reverse_merge'
require 'active_support/file_update_checker'
require 'fileutils'
require 'rails/plugin'
require 'rails/engine'
module Rails
# In Rails 3.0, a Rails::Application object was introduced which is nothing more than
# an Engine but with the responsibility of coordinating the whole boot process.
#
# == Initialization
#
# Rails::Application is responsible for executing all railties, engines and plugin
# initializers. Besides, it also executed some bootstrap initializers (check
# Rails::Application::Bootstrap) and finishing initializers, after all the others
# are executed (check Rails::Application::Finisher).
#
# == Configuration
#
# Besides providing the same configuration as Rails::Engine and Rails::Railtie,
# the application object has several specific configurations, for example
# "allow_concurrency", "cache_classes", "consider_all_requests_local", "filter_parameters",
# "logger", "reload_plugins" and so forth.
#
# Check Rails::Application::Configuration to see them all.
#
# == Routes
#
# The application object is also responsible for holding the routes and reloading routes
# whenever the files change in development.
#
# == Middlewares
#
# The Application is also responsible for building the middleware stack.
#
class Application < Engine
autoload :Bootstrap, 'rails/application/bootstrap'
autoload :Configuration, 'rails/application/configuration'
autoload :Finisher, 'rails/application/finisher'
autoload :Railties, 'rails/application/railties'
autoload :RoutesReloader, 'rails/application/routes_reloader'
class << self
def inherited(base)
raise "You cannot have more than one Rails::Application" if Rails.application
super
Rails.application = base.instance
Rails.application.add_lib_to_load_path!
ActiveSupport.run_load_hooks(:before_configuration, base.instance)
end
end
attr_accessor :assets
delegate :default_url_options, :default_url_options=, :to => :routes
# This method is called just after an application inherits from Rails::Application,
# allowing the developer to load classes in lib and use them during application
# configuration.
#
# class MyApplication < Rails::Application
# require "my_backend" # in lib/my_backend
# config.i18n.backend = MyBackend
# end
#
# Notice this method takes into consideration the default root path. So if you
# are changing config.root inside your application definition or having a custom
# Rails application, you will need to add lib to $LOAD_PATH on your own in case
# you need to load files in lib/ during the application configuration as well.
def add_lib_to_load_path! #:nodoc:
path = config.root.join('lib').to_s
$LOAD_PATH.unshift(path) if File.exists?(path)
end
def require_environment! #:nodoc:
environment = paths["config/environment"].existent.first
require environment if environment
end
def eager_load! #:nodoc:
railties.all(&:eager_load!)
super
end
def reload_routes!
routes_reloader.reload!
end
def routes_reloader
@routes_reloader ||= RoutesReloader.new
end
def initialize!
raise "Application has been already initialized." if @initialized
run_initializers(self)
@initialized = true
self
end
def load_tasks
initialize_tasks
railties.all { |r| r.load_tasks }
super
self
end
def load_generators
initialize_generators
railties.all { |r| r.load_generators }
super
self
end
def load_console(sandbox=false)
initialize_console(sandbox)
railties.all { |r| r.load_console(sandbox) }
super()
self
end
def env_config
@env_config ||= super.merge({
"action_dispatch.parameter_filter" => config.filter_parameters,
"action_dispatch.secret_token" => config.secret_token,
"action_dispatch.show_exceptions" => config.action_dispatch.show_exceptions
})
end
def initializers
Bootstrap.initializers_for(self) +
super +
Finisher.initializers_for(self)
end
def config
@config ||= Application::Configuration.new(find_root_with_flag("config.ru", Dir.pwd))
end
protected
alias :build_middleware_stack :app
def default_middleware_stack
ActionDispatch::MiddlewareStack.new.tap do |middleware|
if rack_cache = config.action_controller.perform_caching && config.action_dispatch.rack_cache
require "action_dispatch/http/rack_cache"
middleware.use ::Rack::Cache, rack_cache
end
if config.force_ssl
require "rack/ssl"
middleware.use ::Rack::SSL
end
if config.serve_static_assets
middleware.use ::ActionDispatch::Static, paths["public"].first, config.static_cache_control
end
middleware.use ::Rack::Lock unless config.allow_concurrency
middleware.use ::Rack::Runtime
middleware.use ::Rack::MethodOverride
middleware.use ::Rails::Rack::Logger # must come after Rack::MethodOverride to properly log overridden methods
middleware.use ::ActionDispatch::ShowExceptions, config.consider_all_requests_local
middleware.use ::ActionDispatch::RemoteIp, config.action_dispatch.ip_spoofing_check, config.action_dispatch.trusted_proxies
middleware.use ::Rack::Sendfile, config.action_dispatch.x_sendfile_header
middleware.use ::ActionDispatch::Reloader unless config.cache_classes
middleware.use ::ActionDispatch::Callbacks
middleware.use ::ActionDispatch::Cookies
if config.session_store
middleware.use config.session_store, config.session_options
middleware.use ::ActionDispatch::Flash
end
middleware.use ::ActionDispatch::ParamsParser
middleware.use ::ActionDispatch::Head
middleware.use ::Rack::ConditionalGet
middleware.use ::Rack::ETag, "no-cache"
if config.action_dispatch.best_standards_support
middleware.use ::ActionDispatch::BestStandardsSupport, config.action_dispatch.best_standards_support
end
end
end
def initialize_tasks
require "rails/tasks"
task :environment do
$rails_rake_task = true
require_environment!
end
end
def initialize_generators
require "rails/generators"
end
def initialize_console(sandbox=false)
require "rails/console/app"
require "rails/console/helpers"
end
end
end
|
