use a controller method to handle cancan denials

[rails.git] / app / controllers / application_controller.rb

diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 3afb17f470afb5668a2c2be34e60696f4c57f952..54d5835bbc5868c87d5f1ffb10a2c4157a0dd651 100644 (file)
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -1,9 +1,13 @@
 class ApplicationController < ActionController::Base
   include SessionPersistence
+  # check_authorization
 
   protect_from_forgery :with => :exception
 
+  rescue_from CanCan::AccessDenied, :with => :deny_access
+
   before_action :fetch_body
+  around_action :better_errors_allow_inline, :if => proc { Rails.env.development? }
 
   attr_accessor :current_user
   helper_method :current_user
@@ -455,6 +459,30 @@ class ApplicationController < ActionController::Base
     end
   end
 
+  def better_errors_allow_inline
+    yield
+  rescue StandardError
+    append_content_security_policy_directives(
+      :script_src => %w['unsafe-inline'],
+      :style_src => %w['unsafe-inline']
+    )
+
+    raise
+  end
+
+  def current_ability
+    Ability.new(current_user, current_token)
+  end
+
+  def deny_access(exception)
+    if current_user
+      raise "Access denied on #{exception.action} #{exception.subject.inspect}"
+      # ...
+    else
+      require_user
+    end
+  end
+
   private
 
   # extract authorisation credentials from headers, returns user = nil if none