Merge branch 'fix-404-for-pipelines' into 'master'

Fix 404 for pipelines

## What does this MR do?
Allow to access pipelines of public project by logged guest.

## What are the relevant issue numbers?
Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/17885

## Does this MR meet the acceptance criteria?

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !4881

5 files changed, 273 insertions, 2 deletions

diff --git a/CHANGELOG b/CHANGELOG
index 92fe193f7b2..3298743420c 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -24,6 +24,7 @@ v 8.9.1 (unreleased)
   - Fix GitLab project import issues related to notes and builds. !4855
   - Restrict header logo to 36px so it doesn't overflow. !4861
   - Fix merge requests project settings help link anchor. !4873
+  - Fix 404 when accessing pipelines as guest user on public projects. !4881
 
 v 8.9.0
   - Fix builds API response not including commit data
diff --git a/app/models/ability.rb b/app/models/ability.rb
index 9c58b956007..f5950879ccb 100644
--- a/app/models/ability.rb
+++ b/app/models/ability.rb
@@ -196,7 +196,8 @@ class Ability
       @public_project_rules ||= project_guest_rules + [
         :download_code,
         :fork_project,
-        :read_commit_status
+        :read_commit_status,
+        :read_pipeline
       ]
     end
 
diff --git a/spec/features/security/project/internal_access_spec.rb b/spec/features/security/project/internal_access_spec.rb
index 8625ea6bc10..13d980a326f 100644
--- a/spec/features/security/project/internal_access_spec.rb
+++ b/spec/features/security/project/internal_access_spec.rb
@@ -288,4 +288,142 @@ describe "Internal Project Access", feature: true  do
     it { is_expected.to be_denied_for :external }
     it { is_expected.to be_denied_for :visitor }
   end
+
+  describe "GET /:project_path/pipelines" do
+    subject { namespace_project_pipelines_path(project.namespace, project) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_allowed_for reporter }
+    it { is_expected.to be_allowed_for guest }
+    it { is_expected.to be_allowed_for :user }
+    it { is_expected.to be_denied_for :external }
+    it { is_expected.to be_denied_for :visitor }
+  end
+
+  describe "GET /:project_path/pipelines/:id" do
+    let(:pipeline) { create(:ci_pipeline, project: project) }
+    subject { namespace_project_pipeline_path(project.namespace, project, pipeline) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_allowed_for reporter }
+    it { is_expected.to be_allowed_for guest }
+    it { is_expected.to be_allowed_for :user }
+    it { is_expected.to be_denied_for :external }
+    it { is_expected.to be_denied_for :visitor }
+  end
+
+  describe "GET /:project_path/builds" do
+    subject { namespace_project_builds_path(project.namespace, project) }
+
+    context "when allowed for public and internal" do
+      before { project.update(public_builds: true) }
+
+      it { is_expected.to be_allowed_for :admin }
+      it { is_expected.to be_allowed_for owner }
+      it { is_expected.to be_allowed_for master }
+      it { is_expected.to be_allowed_for developer }
+      it { is_expected.to be_allowed_for reporter }
+      it { is_expected.to be_allowed_for guest }
+      it { is_expected.to be_allowed_for :user }
+      it { is_expected.to be_denied_for :external }
+      it { is_expected.to be_denied_for :visitor }
+    end
+
+    context "when disallowed for public and internal" do
+      before { project.update(public_builds: false) }
+
+      it { is_expected.to be_allowed_for :admin }
+      it { is_expected.to be_allowed_for owner }
+      it { is_expected.to be_allowed_for master }
+      it { is_expected.to be_allowed_for developer }
+      it { is_expected.to be_allowed_for reporter }
+      it { is_expected.to be_denied_for guest }
+      it { is_expected.to be_denied_for :user }
+      it { is_expected.to be_denied_for :external }
+      it { is_expected.to be_denied_for :visitor }
+    end
+  end
+
+  describe "GET /:project_path/builds/:id" do
+    let(:pipeline) { create(:ci_pipeline, project: project) }
+    let(:build) { create(:ci_build, pipeline: pipeline) }
+    subject { namespace_project_build_path(project.namespace, project, build.id) }
+
+    context "when allowed for public and internal" do
+      before { project.update(public_builds: true) }
+
+      it { is_expected.to be_allowed_for :admin }
+      it { is_expected.to be_allowed_for owner }
+      it { is_expected.to be_allowed_for master }
+      it { is_expected.to be_allowed_for developer }
+      it { is_expected.to be_allowed_for reporter }
+      it { is_expected.to be_allowed_for guest }
+      it { is_expected.to be_allowed_for :user }
+      it { is_expected.to be_denied_for :external }
+      it { is_expected.to be_denied_for :visitor }
+    end
+
+    context "when disallowed for public and internal" do
+      before { project.update(public_builds: false) }
+
+      it { is_expected.to be_allowed_for :admin }
+      it { is_expected.to be_allowed_for owner }
+      it { is_expected.to be_allowed_for master }
+      it { is_expected.to be_allowed_for developer }
+      it { is_expected.to be_allowed_for reporter }
+      it { is_expected.to be_denied_for guest }
+      it { is_expected.to be_denied_for :user }
+      it { is_expected.to be_denied_for :external }
+      it { is_expected.to be_denied_for :visitor }
+    end
+  end
+
+  describe "GET /:project_path/environments" do
+    subject { namespace_project_environments_path(project.namespace, project) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_allowed_for reporter }
+    it { is_expected.to be_denied_for guest }
+    it { is_expected.to be_denied_for :user }
+    it { is_expected.to be_denied_for :external }
+    it { is_expected.to be_denied_for :visitor }
+  end
+
+  describe "GET /:project_path/environments/:id" do
+    let(:environment) { create(:environment, project: project) }
+    subject { namespace_project_environment_path(project.namespace, project, environment) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_allowed_for reporter }
+    it { is_expected.to be_denied_for guest }
+    it { is_expected.to be_denied_for :user }
+    it { is_expected.to be_denied_for :external }
+    it { is_expected.to be_denied_for :visitor }
+  end
+
+  describe "GET /:project_path/environments/new" do
+    subject { new_namespace_project_environment_path(project.namespace, project) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_denied_for reporter }
+    it { is_expected.to be_denied_for guest }
+    it { is_expected.to be_denied_for :user }
+    it { is_expected.to be_denied_for :external }
+    it { is_expected.to be_denied_for :visitor }
+  end
 end
diff --git a/spec/features/security/project/private_access_spec.rb b/spec/features/security/project/private_access_spec.rb
index 544270b4037..ac9690cc127 100644
--- a/spec/features/security/project/private_access_spec.rb
+++ b/spec/features/security/project/private_access_spec.rb
@@ -260,4 +260,106 @@ describe "Private Project Access", feature: true  do
     it { is_expected.to be_denied_for :external }
     it { is_expected.to be_denied_for :visitor }
   end
+
+  describe "GET /:project_path/pipelines" do
+    subject { namespace_project_pipelines_path(project.namespace, project) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_allowed_for reporter }
+    it { is_expected.to be_denied_for guest }
+    it { is_expected.to be_denied_for :user }
+    it { is_expected.to be_denied_for :external }
+    it { is_expected.to be_denied_for :visitor }
+  end
+
+  describe "GET /:project_path/pipelines/:id" do
+    let(:pipeline) { create(:ci_pipeline, project: project) }
+    subject { namespace_project_pipeline_path(project.namespace, project, pipeline) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_allowed_for reporter }
+    it { is_expected.to be_denied_for guest }
+    it { is_expected.to be_denied_for :user }
+    it { is_expected.to be_denied_for :external }
+    it { is_expected.to be_denied_for :visitor }
+  end
+
+  describe "GET /:project_path/builds" do
+    subject { namespace_project_builds_path(project.namespace, project) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_allowed_for reporter }
+    it { is_expected.to be_denied_for guest }
+    it { is_expected.to be_denied_for :user }
+    it { is_expected.to be_denied_for :external }
+    it { is_expected.to be_denied_for :visitor }
+  end
+
+  describe "GET /:project_path/builds/:id" do
+    let(:pipeline) { create(:ci_pipeline, project: project) }
+    let(:build) { create(:ci_build, pipeline: pipeline) }
+    subject { namespace_project_build_path(project.namespace, project, build.id) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_allowed_for reporter }
+    it { is_expected.to be_denied_for guest }
+    it { is_expected.to be_denied_for :user }
+    it { is_expected.to be_denied_for :external }
+    it { is_expected.to be_denied_for :visitor }
+  end
+
+  describe "GET /:project_path/environments" do
+    subject { namespace_project_environments_path(project.namespace, project) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_allowed_for reporter }
+    it { is_expected.to be_denied_for guest }
+    it { is_expected.to be_denied_for :user }
+    it { is_expected.to be_denied_for :external }
+    it { is_expected.to be_denied_for :visitor }
+  end
+
+  describe "GET /:project_path/environments/:id" do
+    let(:environment) { create(:environment, project: project) }
+    subject { namespace_project_environment_path(project.namespace, project, environment) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_allowed_for reporter }
+    it { is_expected.to be_denied_for guest }
+    it { is_expected.to be_denied_for :user }
+    it { is_expected.to be_denied_for :external }
+    it { is_expected.to be_denied_for :visitor }
+  end
+
+  describe "GET /:project_path/environments/new" do
+    subject { new_namespace_project_environment_path(project.namespace, project) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_denied_for reporter }
+    it { is_expected.to be_denied_for guest }
+    it { is_expected.to be_denied_for :user }
+    it { is_expected.to be_denied_for :external }
+    it { is_expected.to be_denied_for :visitor }
+  end
 end
diff --git a/spec/features/security/project/public_access_spec.rb b/spec/features/security/project/public_access_spec.rb
index f6c6687e162..737897de52b 100644
--- a/spec/features/security/project/public_access_spec.rb
+++ b/spec/features/security/project/public_access_spec.rb
@@ -109,6 +109,35 @@ describe "Public Project Access", feature: true  do
     it { is_expected.to be_allowed_for :external }
   end
 
+  describe "GET /:project_path/pipelines" do
+    subject { namespace_project_pipelines_path(project.namespace, project) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_allowed_for reporter }
+    it { is_expected.to be_allowed_for guest }
+    it { is_expected.to be_allowed_for :user }
+    it { is_expected.to be_allowed_for :external }
+    it { is_expected.to be_allowed_for :visitor }
+  end
+
+  describe "GET /:project_path/pipelines/:id" do
+    let(:pipeline) { create(:ci_pipeline, project: project) }
+    subject { namespace_project_pipeline_path(project.namespace, project, pipeline) }
+
+    it { is_expected.to be_allowed_for :admin }
+    it { is_expected.to be_allowed_for owner }
+    it { is_expected.to be_allowed_for master }
+    it { is_expected.to be_allowed_for developer }
+    it { is_expected.to be_allowed_for reporter }
+    it { is_expected.to be_allowed_for guest }
+    it { is_expected.to be_allowed_for :user }
+    it { is_expected.to be_allowed_for :external }
+    it { is_expected.to be_allowed_for :visitor }
+  end
+
   describe "GET /:project_path/builds" do
     subject { namespace_project_builds_path(project.namespace, project) }
 
@@ -191,7 +220,7 @@ describe "Public Project Access", feature: true  do
 
   describe "GET /:project_path/environments/:id" do
     let(:environment) { create(:environment, project: project) }
-    subject { namespace_project_environments_path(project.namespace, project, environment) }
+    subject { namespace_project_environment_path(project.namespace, project, environment) }
 
     it { is_expected.to be_allowed_for :admin }
     it { is_expected.to be_allowed_for owner }