Merge branch 'bvl-external-auth-port' into 'master'

Port `read_cross_project` ability from EE

See merge request gitlab-org/gitlab-ce!17208

1 files changed, 48 insertions, 0 deletions

diff --git a/lib/gitlab/cross_project_access/class_methods.rb b/lib/gitlab/cross_project_access/class_methods.rb
new file mode 100644
index 00000000000..90eac94800c
--- /dev/null
+++ b/lib/gitlab/cross_project_access/class_methods.rb
@@ -0,0 +1,48 @@
+module Gitlab
+  class CrossProjectAccess
+    module ClassMethods
+      def requires_cross_project_access(*args)
+        positive_condition, negative_condition, actions = extract_params(args)
+
+        Gitlab::CrossProjectAccess.add_check(
+          self,
+          actions: actions,
+          positive_condition: positive_condition,
+          negative_condition: negative_condition
+        )
+      end
+
+      def skip_cross_project_access_check(*args)
+        positive_condition, negative_condition, actions = extract_params(args)
+
+        Gitlab::CrossProjectAccess.add_check(
+          self,
+          actions: actions,
+          positive_condition: positive_condition,
+          negative_condition: negative_condition,
+          skip: true
+        )
+      end
+
+      private
+
+      def extract_params(args)
+        actions = {}
+        positive_condition = nil
+        negative_condition = nil
+
+        args.each do |argument|
+          if argument.is_a?(Hash)
+            positive_condition = argument.delete(:if)
+            negative_condition = argument.delete(:unless)
+            actions.merge!(argument)
+          else
+            actions[argument] = true
+          end
+        end
+
+        [positive_condition, negative_condition, actions]
+      end
+    end
+  end
+end