Class: Rack::TrafficSignal::Middleware

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/traffic_signal/middleware.rb

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Middleware

Returns a new instance of Middleware.



6
7
8
 
# File 'lib/rack/traffic_signal/middleware.rb', line 6

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object 



10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
 
# File 'lib/rack/traffic_signal/middleware.rb', line 10

def call(env)
  return @app.call(env) if Rack::TrafficSignal.skip?(env)
  method = env['REQUEST_METHOD'].downcase.to_sym
  path = env['PATH_INFO']
  path = path.chop if path != '/' && path[-1] == '/'

  applied_config = maintenance_application(method, path)

  if applied_config
    if Rack::TrafficSignal.skip_with_warning?(env)
      @app.call(env).tap do |status, headers, body|
        headers['X-RACK-TRAFFIC-SIGNAL-MAINTENENCE'] = '1'
      end
    else
      build_response(applied_config)
    end
  else
    @app.call(env)
  end
end