Add actionpack as a dependency

Gemfile.lock

@@ -2,6 +2,7 @@ PATH
   remote: .
   specs:
     actioncable (0.1.0)
+      actionpack (>= 4.2.0)
       activesupport (>= 4.2.0)
       celluloid (~> 0.16.0)
       em-hiredis (~> 0.3.0)
@@ -12,17 +13,32 @@ PATH
 GEM
   remote: http://rubygems.org/
   specs:
-    activesupport (4.2.3)
+    actionpack (4.2.1)
+      actionview (= 4.2.1)
+      activesupport (= 4.2.1)
+      rack (~> 1.6)
+      rack-test (~> 0.6.2)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.1)
+    actionview (4.2.1)
+      activesupport (= 4.2.1)
+      builder (~> 3.1)
+      erubis (~> 2.7.0)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.1)
+    activesupport (4.2.1)
       i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
+    builder (3.2.2)
     celluloid (0.16.0)
       timers (~> 4.0.0)
     em-hiredis (0.3.0)
       eventmachine (~> 1.0)
       hiredis (~> 0.5.0)
+    erubis (2.7.0)
     eventmachine (1.0.7)
     faye-websocket (0.9.2)
       eventmachine (>= 0.12.0)
@@ -31,13 +47,28 @@ GEM
     hitimes (1.2.2)
     i18n (0.7.0)
     json (1.8.3)
+    loofah (2.0.2)
+      nokogiri (>= 1.5.9)
     metaclass (0.0.4)
+    mini_portile (0.6.2)
     minitest (5.7.0)
     mocha (1.1.0)
       metaclass (~> 0.0.1)
+    nokogiri (1.6.6.2)
+      mini_portile (~> 0.6.0)
     puma (2.10.2)
       rack (>= 1.1, < 2.0)
     rack (1.6.0)
+    rack-test (0.6.3)
+      rack (>= 1.0)
+    rails-deprecated_sanitizer (1.0.3)
+      activesupport (>= 4.2.0.alpha)
+    rails-dom-testing (1.0.6)
+      activesupport (>= 4.2.0.beta, < 5.0)
+      nokogiri (~> 1.6.0)
+      rails-deprecated_sanitizer (>= 1.0.1)
+    rails-html-sanitizer (1.0.2)
+      loofah (~> 2.0)
     rake (10.4.2)
     redis (3.2.1)
     thread_safe (0.3.5)

actioncable.gemspec

@@ -12,6 +12,7 @@ Gem::Specification.new do |s|
   s.platform = Gem::Platform::RUBY
 
   s.add_dependency 'activesupport',    '>= 4.2.0'
+  s.add_dependency 'actionpack',       '>= 4.2.0'
   s.add_dependency 'faye-websocket',   '~> 0.9.2'
   s.add_dependency 'websocket-driver', '= 0.5.4'
   s.add_dependency 'celluloid',        '~> 0.16.0'

lib/action_cable/connection/base.rb

@@ -1,3 +1,5 @@
+require 'action_dispatch/http/request'
+
 module ActionCable
   module Connection
     # For every websocket the cable server is accepting, a Connection object will be instantiated. This instance becomes the parent
@@ -117,7 +119,10 @@ module ActionCable
       protected
         # The request that initiated the websocket connection is available here. This gives access to the environment, cookies, etc.
         def request
-          @request ||= ActionDispatch::Request.new(Rails.application.env_config.merge(env))
+          @request ||= begin
+            environment = Rails.application.env_config.merge(env) if defined?(Rails.application) && Rails.application
+            ActionDispatch::Request.new(environment || env)
+          end
         end
 
         # The cookies of the request that initiated the websocket connection. Useful for performing authorization checks.