API: Restore backward-compatibility for POST /projects/:id/members when membership is locked

Signed-off-by: Rémy Coutable <remy@rymai.me>

CHANGELOG-EE

 Please view this file on the master branch, on stable branches it's out of date.
 v 8.12.0 (Unreleased)
 
+v 8.11.5
+  - API: Restore backward-compatibility for POST /projects/:id/members when membership is locked
+
+v 8.11.4
+  - No EE-specific changes
+
 v 8.11.3
   - [ES] Add logging to indexer
   - Fix missing EE-specific service parameters for Jenkins CI

lib/api/members.rb

@@ -59,6 +59,12 @@ module API
           authorize_admin_source!(source_type, source)
           required_attributes! [:user_id, :access_level]
 
+          ## EE specific
+          if source_type == 'project' && source.group && source.group.membership_lock
+            not_allowed!
+          end
+          ## EE specific
+
           access_requester = source.requesters.find_by(user_id: params[:user_id])
           if access_requester
             # We pass current_user = access_requester so that the requester doesn't

spec/requests/api/members_spec.rb

@@ -162,6 +162,23 @@ describe API::Members, api: true  do
     end
   end
 
+  ## EE specific
+  shared_examples 'POST /projects/:id/members with the project group membership locked' do
+    context 'project in a group' do
+      it 'returns a 405 method not allowed error when group membership lock is enabled' do
+        group_with_membership_locked = create(:group, membership_lock: true)
+        project = create(:project, group: group_with_membership_locked)
+        project.group.add_owner(master)
+
+        post api("/projects/#{project.id}/members", master),
+             user_id: developer.id, access_level: Member::MASTER
+
+        expect(response.status).to eq 405
+      end
+    end
+  end
+  ## EE specific
+
   shared_examples 'PUT /:sources/:id/members/:user_id' do |source_type|
     context "with :sources == #{source_type.pluralize}" do
       it_behaves_like 'a 404 response when source is private' do
@@ -292,6 +309,10 @@ describe API::Members, api: true  do
     let(:source) { project }
   end
 
+  ## EE specific
+  it_behaves_like 'POST /projects/:id/members with the project group membership locked'
+  ## EE specific
+
   it_behaves_like 'POST /:sources/:id/members', 'group' do
     let(:source) { group }
   end