Redirect to the pipeline builds page when a build is canceled

app/controllers/projects/jobs_controller.rb

 class Projects::JobsController < Projects::ApplicationController
   include SendFileUpload
+  include ContinueParams
   before_action :build, except: [:index, :cancel_all]
   before_action :authorize_read_build!
@@ -101,7 +102,12 @@ class Projects::JobsController < Projects::ApplicationController
     return respond_422 unless @build.cancelable?
     @build.cancel
-    redirect_to build_path(@build)
+
+    if continue_params
+      redirect_to continue_params[:to]
+    else
+      redirect_to builds_project_pipeline_path(@project, @build.pipeline.id)
+    end
   end
   def status

app/views/projects/ci/builds/_build.html.haml

@@ -99,7 +99,7 @@
           = sprite_icon('download')
       - if can?(current_user, :update_build, job)
         - if job.active?
-          = link_to cancel_project_job_path(job.project, job, return_to: request.original_url), method: :post, title: 'Cancel', class: 'btn btn-build' do
+          = link_to cancel_project_job_path(job.project, job, continue: { to: request.fullpath }), method: :post, title: 'Cancel', class: 'btn btn-build' do
             = icon('remove', class: 'cred')
         - elsif allow_retry
           - if job.playable? && !admin && can?(current_user, :update_build, job)

changelogs/unreleased/Fix-pipeline-redirect.yml

+---
+title: Redirect to the pipeline builds page when a build is canceled
+merge_request:
+author: Eva Kadlecova
+type: fixed

spec/controllers/projects/jobs_controller_spec.rb

@@ -356,35 +356,68 @@ describe Projects::JobsController, :clean_gitlab_redis_shared_state do
     before do
       project.add_developer(user)
       sign_in(user)
-
-      post_cancel
     end
-    context 'when job is cancelable' do
+    context 'when continue url is present' do
       let(:job) { create(:ci_build, :cancelable, pipeline: pipeline) }
-      it 'redirects to the canceled job page' do
-        expect(response).to have_gitlab_http_status(:found)
-        expect(response).to redirect_to(namespace_project_job_path(id: job.id))
+      context 'when continue to is a safe url' do
+        let(:url) { '/test' }
+
+        before do
+          post_cancel(continue: { to: url })
+        end
+
+        it 'redirects to the continue url' do
+          expect(response).to have_gitlab_http_status(:found)
+          expect(response).to redirect_to(url)
+        end
+
+        it 'transits to canceled' do
+          expect(job.reload).to be_canceled
+        end
       end
-      it 'transits to canceled' do
-        expect(job.reload).to be_canceled
+      context 'when continue to is not a safe url' do
+        let(:url) { 'http://example.com' }
+
+        it 'raises an error' do
+          expect { cancel_with_redirect(url) }.to raise_error
+        end
       end
     end
-    context 'when job is not cancelable' do
-      let(:job) { create(:ci_build, :canceled, pipeline: pipeline) }
-      it 'returns unprocessable_entity' do
-        expect(response).to have_gitlab_http_status(:unprocessable_entity)
+    context 'when continue url is not present' do
+      before do
+        post_cancel
+      end
+      context 'when job is cancelable' do
+        let(:job) { create(:ci_build, :cancelable, pipeline: pipeline) }
+
+        it 'redirects to the builds page' do
+          expect(response).to have_gitlab_http_status(:found)
+          expect(response).to redirect_to(builds_namespace_project_pipeline_path(id: pipeline.id))
+        end
+
+        it 'transits to canceled' do
+          expect(job.reload).to be_canceled
+        end
+      end
+
+      context 'when job is not cancelable' do
+        let(:job) { create(:ci_build, :canceled, pipeline: pipeline) }
+
+        it 'returns unprocessable_entity' do
+          expect(response).to have_gitlab_http_status(:unprocessable_entity)
+        end
       end
     end
-    def post_cancel
-      post :cancel, namespace_id: project.namespace,
-                    project_id: project,
-                    id: job.id
+    def post_cancel(additional_params = {})
+      post :cancel, { namespace_id: project.namespace,
+                      project_id: project,
+                      id: job.id }.merge(additional_params)
     end
   end