Merge pull request #3393 from evazion/feat-safe-mode

Fix #3392: Add safe mode account setting.

app/logical/anonymous_user.rb

@@ -265,6 +265,10 @@ class AnonymousUser
     false
   end
 
+  def enable_safe_mode?
+    false
+  end
+
   User::Roles.reject {|r| r == :anonymous}.each do |name|
     define_method("is_#{name}?") do
       false

app/logical/current_user.rb

@@ -74,11 +74,7 @@ class CurrentUser
   end
 
   def self.set_safe_mode(req)
-    if req.host =~ /safe/ || req.params[:safe_mode]
-      Thread.current[:safe_mode] = true
-    else
-      Thread.current[:safe_mode] = false
-    end
+    Thread.current[:safe_mode] = Danbooru.config.enable_safe_mode?(req, CurrentUser.user)
   end
 
   def self.method_missing(method, *params, &block)