Made suggested content changes based on MR Review

Changed the authentication method for removing fork through API
Reflected changes to new auth method in API specs

CHANGELOG

@@ -46,7 +46,7 @@ v 8.1.0 (unreleased)
   - Fix bug where Emojis in Markdown would truncate remaining text (Sakata Sinji)
   - Persist filters when sorting on admin user page (Jerry Lukins)
   - Adds ability to remove the forked relationship from project settings
-  screen. #2578 (Han Loong Liauw)
+  screen. (Han Loong Liauw)
   - Add spellcheck=false to certain input fields
   - Invalidate stored service password if the endpoint URL is changed

app/controllers/projects_controller.rb

@@ -5,7 +5,7 @@ class ProjectsController < ApplicationController
   before_action :repository, except: [:new, :create]
   # Authorize
-  before_action :authorize_admin_project!, only: [:edit, :update, :destroy, :transfer, :archive, :unarchive, :remove_fork]
+  before_action :authorize_admin_project!, only: [:edit, :update]
   before_action :event_filter, only: [:show, :activity]
   layout :determine_layout
@@ -56,6 +56,8 @@ class ProjectsController < ApplicationController
   end
   def transfer
+    return access_denied! unless can?(current_user, :change_namespace, @project)
+
     namespace = Namespace.find_by(id: params[:new_namespace_id])
     ::Projects::TransferService.new(project, current_user).execute(namespace)
@@ -65,6 +67,8 @@ class ProjectsController < ApplicationController
   end
   def remove_fork
+    return access_denied! unless can?(current_user, :remove_fork_project, @project)
+
     if @project.forked?
       @project.forked_project_link.destroy
       flash[:notice] = 'Fork relationship has been removed.'

app/views/projects/edit.html.haml

@@ -190,17 +190,17 @@
         .nothing-here-block Only the project owner can transfer a project
       - if @project.forked? && can?(current_user, :remove_fork_project, @project)
-        = form_for([@project.namespace.becomes(Namespace), @project], url: remove_fork_namespace_project_path(@project.namespace, @project), method: :put, remote: true, html: { class: 'transfer-project form-horizontal' }) do |f|
+        = form_for([@project.namespace.becomes(Namespace), @project], url: remove_fork_namespace_project_path(@project.namespace, @project), method: :delete, remote: true, html: { class: 'transfer-project form-horizontal' }) do |f|
           .panel.panel-default.panel.panel-danger
-            .panel-heading Remove forked relationship
+            .panel-heading Remove fork relationship
             .panel-body
               %p
                 This will remove the relationship to the source project from
                 = link_to project_path(@project.forked_from_project) do
                   = @project.forked_from_project.namespace.try(:name)
                 %br
-                %strong Once removed it cannot be reversed through this interface
-              = button_to 'Remove forked relationship', '#', class: "btn btn-remove js-confirm-danger", data: { "confirm-danger-message" => remove_fork_project_message(@project) }
+                %strong Once removed it cannot be reversed through this interface.
+              = button_to 'Remove fork relationship', '#', class: "btn btn-remove js-confirm-danger", data: { "confirm-danger-message" => remove_fork_project_message(@project) }
       - elsif @project.forked?
         .nothing-here-block Only the project owner can remove the fork relationship

config/routes.rb

@@ -378,7 +378,7 @@ Gitlab::Application.routes.draw do
               [:new, :create, :index], path: "/") do
       member do
         put :transfer
-        put :remove_fork
+        delete :remove_fork
         post :archive
         post :unarchive
         post :toggle_star

lib/api/projects.rb

@@ -246,7 +246,7 @@ module API
       # Example Request:
       #  DELETE /projects/:id/fork
       delete ":id/fork" do
-        authenticated_as_admin!
+        authorize! :remove_fork_project, user_project
         if user_project.forked?
           user_project.forked_project_link.destroy
         end

spec/controllers/projects_controller_spec.rb

@@ -72,9 +72,12 @@ describe ProjectsController do
       context 'with forked project' do
         let(:project_fork) { create(:project, namespace: user.namespace) }
-        it 'should remove fork from project' do
+        before do
           create(:forked_project_link, forked_to_project: project_fork)
-          put(:remove_fork,
+        end
+
+        it 'should remove fork from project' do
+          delete(:remove_fork,
               namespace_id: project_fork.namespace.to_param,
               id: project_fork.to_param, format: :js)
@@ -84,19 +87,22 @@ describe ProjectsController do
         end
       end
-      it 'should do nothing if project was not forked' do
-        unforked_project = create(:project, namespace: user.namespace)
-        put(:remove_fork,
-            namespace_id: unforked_project.namespace.to_param,
-            id: unforked_project.to_param, format: :js)
-        expect(flash[:notice]).to be_nil
-        expect(response).to render_template(:remove_fork)
+      context 'when project not forked' do
+        let(:unforked_project) { create(:project, namespace: user.namespace) }
+        it 'should do nothing if project was not forked' do
+          delete(:remove_fork,
+              namespace_id: unforked_project.namespace.to_param,
+              id: unforked_project.to_param, format: :js)
+
+          expect(flash[:notice]).to be_nil
+          expect(response).to render_template(:remove_fork)
+        end
       end
     end
     it "does nothing if user is not signed in" do
-      put(:remove_fork,
+      delete(:remove_fork,
           namespace_id: project.namespace.to_param,
           id: project.to_param, format: :js)
       expect(response.status).to eq(401)

spec/features/projects_spec.rb

@@ -45,13 +45,13 @@ feature 'Project', feature: true do
     end
     it 'should remove fork' do
-      expect(page).to have_content 'Remove forked relationship'
-      remove_with_confirm('Remove forked relationship', project.path)
+      expect(page).to have_content 'Remove fork relationship'
+      remove_with_confirm('Remove fork relationship', project.path)
       expect(page).to have_content 'Fork relationship has been removed.'
       expect(project.forked?).to be_falsey
-      expect(page).not_to have_content 'Remove forked relationship'
+      expect(page).not_to have_content 'Remove fork relationship'
     end
   end

spec/requests/api/projects_spec.rb

@@ -606,28 +606,42 @@ describe API::API, api: true  do
     describe 'DELETE /projects/:id/fork' do
-      it "shouldn't available for non admin users" do
+      it "shouldn't be visible to users outside group" do
         delete api("/projects/#{project_fork_target.id}/fork", user)
-        expect(response.status).to eq(403)
+        expect(response.status).to eq(404)
       end
-      it 'should make forked project unforked' do
-        post api("/projects/#{project_fork_target.id}/fork/#{project_fork_source.id}", admin)
-        project_fork_target.reload
-        expect(project_fork_target.forked_from_project).not_to be_nil
-        expect(project_fork_target.forked?).to be_truthy
-        delete api("/projects/#{project_fork_target.id}/fork", admin)
-        expect(response.status).to eq(200)
-        project_fork_target.reload
-        expect(project_fork_target.forked_from_project).to be_nil
-        expect(project_fork_target.forked?).not_to be_truthy
-      end
-      it 'should be idempotent if not forked' do
-        expect(project_fork_target.forked_from_project).to be_nil
-        delete api("/projects/#{project_fork_target.id}/fork", admin)
-        expect(response.status).to eq(200)
-        expect(project_fork_target.reload.forked_from_project).to be_nil
+      context 'when users belong to project group' do
+        let(:project_fork_target) { create(:project, group: create(:group)) }
+        before do
+          project_fork_target.group.add_owner user
+          project_fork_target.group.add_developer user2
+        end
+
+        it 'should be forbidden to non-owner users' do
+          delete api("/projects/#{project_fork_target.id}/fork", user2)
+          expect(response.status).to eq(403)
+        end
+
+        it 'should make forked project unforked' do
+          post api("/projects/#{project_fork_target.id}/fork/#{project_fork_source.id}", admin)
+          project_fork_target.reload
+          expect(project_fork_target.forked_from_project).not_to be_nil
+          expect(project_fork_target.forked?).to be_truthy
+          delete api("/projects/#{project_fork_target.id}/fork", admin)
+          expect(response.status).to eq(200)
+          project_fork_target.reload
+          expect(project_fork_target.forked_from_project).to be_nil
+          expect(project_fork_target.forked?).not_to be_truthy
+        end
+
+        it 'should be idempotent if not forked' do
+          expect(project_fork_target.forked_from_project).to be_nil
+          delete api("/projects/#{project_fork_target.id}/fork", admin)
+          expect(response.status).to eq(200)
+          expect(project_fork_target.reload.forked_from_project).to be_nil
+        end
       end
     end
   end