compatibility with redmine 3.4

lib/redmine_cas/account_controller_patch.rb

@@ -5,7 +5,8 @@ module AccountControllerPatch
     def self.included(base)
       base.send(:include, InstanceMethods)
       base.class_eval do
-        alias_method_chain :logout, :cas
+        alias_method :logout_without_cas, :logout
+        alias_method :logout, :logout_with_cas
       end
     end
 
@@ -55,7 +56,7 @@ def cas
       end
 
       def redirect_to_ref_or_default
-        default_url = url_for(params.merge(:ticket => nil))
+        default_url = url_for(params.delete(:ticket))
         if params.has_key?(:ref)
           # do some basic validation on ref, to prevent a malicious link to redirect
           # to another site.

lib/redmine_cas/application_controller_patch.rb

@@ -5,8 +5,10 @@ module ApplicationControllerPatch
     def self.included(base)
       base.send(:include, InstanceMethods)
       base.class_eval do
-        alias_method_chain :verify_authenticity_token, :cas
-        alias_method_chain :require_login, :cas
+        alias_method :verify_authenticity_token_without_cas, :verify_authenticity_token
+        alias_method :verify_authenticity_token, :verify_authenticity_token_with_cas
+        alias_method :require_login_without_cas, :require_login
+        alias_method :require_login, :require_login_with_cas
       end
     end