1 files changed, 63 insertions, 0 deletions
diff --git a/app/models/project_feature.rb b/app/models/project_feature.rb
new file mode 100644
index 00000000000..9c602c582bd
--- /dev/null
+++ b/app/models/project_feature.rb
@@ -0,0 +1,63 @@
+class ProjectFeature < ActiveRecord::Base
+  # == Project features permissions
+  #
+  # Grants access level to project tools
+  #
+  # Tools can be enabled only for users, everyone or disabled
+  # Access control is made only for non private projects
+  #
+  # levels:
+  #
+  # Disabled: not enabled for anyone
+  # Private:  enabled only for team members
+  # Enabled:  enabled for everyone able to access the project
+  #
+
+  # Permision levels
+  DISABLED = 0
+  PRIVATE  = 10
+  ENABLED  = 20
+
+  FEATURES = %i(issues merge_requests wiki snippets builds)
+
+  belongs_to :project
+
+  def feature_available?(feature, user)
+    raise ArgumentError, 'invalid project feature' unless FEATURES.include?(feature)
+
+    get_permission(user, public_send("#{feature}_access_level"))
+  end
+
+  def builds_enabled?
+    return true unless builds_access_level
+
+    builds_access_level > DISABLED
+  end
+
+  def wiki_enabled?
+    return true unless wiki_access_level
+
+    wiki_access_level > DISABLED
+  end
+
+  def merge_requests_enabled?
+    return true unless merge_requests_access_level
+
+    merge_requests_access_level > DISABLED
+  end
+
+  private
+
+  def get_permission(user, level)
+    case level
+    when DISABLED
+      false
+    when PRIVATE
+      user && (project.team.member?(user) || user.admin?)
+    when ENABLED
+      true
+    else
+      true
+    end
+  end
+end