# frozen_string_literal: true

require 'spec_helper'

RSpec.describe Projects::ReleasesController do
  include AccessMatchersForController

  let!(:project) { create(:project, :repository, :public) }
  let_it_be(:private_project) { create(:project, :repository, :private) }
  let_it_be(:developer)  { create(:user) }
  let_it_be(:reporter)   { create(:user) }
  let_it_be(:guest)      { create(:user) }
  let_it_be(:user)       { developer }

  let!(:release_1)       { create(:release, project: project, released_at: Time.zone.parse('2018-10-18')) }
  let!(:release_2)       { create(:release, project: project, released_at: Time.zone.parse('2019-10-19')) }

  before do
    project.add_developer(developer)
    project.add_reporter(reporter)
    project.add_guest(guest)
  end

  shared_examples_for 'successful request' do
    it 'renders a 200' do
      subject

      expect(response).to have_gitlab_http_status(:success)
    end
  end

  shared_examples_for 'not found' do
    it 'renders 404' do
      subject

      expect(response).to have_gitlab_http_status(:not_found)
    end
  end

  shared_examples 'common access controls' do
    it 'renders a 200' do
      get_index

      expect(response).to have_gitlab_http_status(:ok)
    end

    context 'when the project is private' do
      let(:project) { private_project }

      before do
        sign_in(user)
      end

      context 'when user is a developer' do
        let(:user) { developer }

        it 'renders a 200 for a logged in developer' do
          sign_in(user)

          get_index

          expect(response).to have_gitlab_http_status(:ok)
        end
      end

      context 'when user is an external user' do
        let(:user) { create(:user) }

        it 'renders a 404 when logged in but not in the project' do
          sign_in(user)

          get_index

          expect(response).to have_gitlab_http_status(:not_found)
        end
      end
    end
  end

  describe 'GET #index' do
    context 'as html' do
      let(:format) { :html }

      it 'returns a text/html content_type' do
        get_index

        expect(response.media_type).to eq 'text/html'
      end

      it_behaves_like 'common access controls'

      context 'when the project is private and the user is not logged in' do
        let(:project) { private_project }

        it 'returns a redirect' do
          get_index

          expect(response).to have_gitlab_http_status(:redirect)
        end
      end
    end

    context 'as json' do
      let(:format) { :json }

      it 'returns an application/json content_type' do
        get_index

        expect(response.media_type).to eq 'application/json'
      end

      it "returns the project's releases as JSON, ordered by released_at" do
        get_index

        expect(json_response.map { |release| release["id"] }).to eq([release_2.id, release_1.id])
      end

      it_behaves_like 'common access controls'

      context 'when the project is private and the user is not logged in' do
        let(:project) { private_project }

        it 'returns a redirect' do
          get_index

          expect(response).to have_gitlab_http_status(:redirect)
        end
      end
    end
  end

  describe 'GET #new' do
    let(:request) do
      get :new, params: { namespace_id: project.namespace, project_id: project }
    end

    it { expect { request }.to be_denied_for(:reporter).of(project) }
    it { expect { request }.to be_allowed_for(:developer).of(project) }
  end

  describe 'GET #edit' do
    subject do
      get :edit, params: { namespace_id: project.namespace, project_id: project, tag: tag }
    end

    before do
      sign_in(user)
    end

    let(:release) { create(:release, project: project) }
    let(:tag) { release.tag }

    it_behaves_like 'successful request'

    context 'when tag name contains slash' do
      let(:release) { create(:release, project: project, tag: 'awesome/v1.0') }
      let(:tag) { release.tag }

      it_behaves_like 'successful request'

      it 'is accessible at a URL encoded path' do
        expect(edit_project_release_path(project, release))
          .to eq("/#{project.full_path}/-/releases/awesome%2Fv1.0/edit")
      end
    end

    context 'when release does not exist' do
      let(:tag) { 'non-existent-tag' }

      it_behaves_like 'not found'
    end

    context 'when user is a reporter' do
      let(:user) { reporter }

      it_behaves_like 'not found'
    end
  end

  describe 'GET #show' do
    subject do
      get :show, params: { namespace_id: project.namespace, project_id: project, tag: tag }
    end

    before do
      sign_in(user)
    end

    let(:release) { create(:release, project: project) }
    let(:tag) { release.tag }

    it_behaves_like 'successful request'

    context 'when tag name contains slash' do
      let(:release) { create(:release, project: project, tag: 'awesome/v1.0') }
      let(:tag) { release.tag }

      it_behaves_like 'successful request'

      it 'is accesible at a URL encoded path' do
        expect(project_release_path(project, release))
          .to eq("/#{project.full_path}/-/releases/awesome%2Fv1.0")
      end
    end

    context 'when release does not exist' do
      let(:tag) { 'non-existent-tag' }

      it_behaves_like 'not found'
    end

    context 'when user is a guest' do
      let(:project) { private_project }
      let(:user) { guest }

      it_behaves_like 'successful request'
    end

    context 'when user is an external user for the project' do
      let(:project) { private_project }
      let(:user) { create(:user) }

      it 'behaves like not found' do
        subject

        expect(response).to have_gitlab_http_status(:not_found)
      end
    end
  end

  describe 'GET #latest_permalink' do
    # Uses default order_by=released_at parameter.
    subject do
      get :latest_permalink, params: { namespace_id: project.namespace, project_id: project }
    end

    before do
      sign_in(user)
    end

    let(:release) { create(:release, project: project) }
    let(:tag) { release.tag }

    context 'when user is a guest' do
      let(:project) { private_project }
      let(:user) { guest }

      it 'proceeds with the redirect' do
        subject

        expect(response).to have_gitlab_http_status(:redirect)
      end
    end

    context 'when user is an external user for the project' do
      let(:project) { private_project }
      let(:user) { create(:user) }

      it 'behaves like not found' do
        subject

        expect(response).to have_gitlab_http_status(:not_found)
      end
    end

    context 'when there are no releases for the project' do
      let(:project) { create(:project, :repository, :public) }
      let(:user) { developer }

      before do
        project.releases.destroy_all # rubocop: disable Cop/DestroyAll
      end

      it 'behaves like not found' do
        subject

        expect(response).to have_gitlab_http_status(:not_found)
      end
    end

    context 'multiple releases' do
      let(:user) { developer }

      it 'redirects to the latest release' do
        create(:release, project: project, released_at: 1.day.ago)
        latest_release = create(:release, project: project, released_at: Time.current)

        subject

        expect(response).to redirect_to("#{project_releases_path(project)}/#{latest_release.tag}")
      end
    end

    context 'suffix path redirection' do
      let(:user) { developer }
      let(:suffix_path) { 'downloads/zips/helm-hello-world.zip' }
      let!(:latest_release) { create(:release, project: project, released_at: Time.current) }

      subject do
        get :latest_permalink, params: {
          namespace_id: project.namespace,
          project_id: project,
          suffix_path: suffix_path
        }
      end

      it 'redirects to the latest release with suffix path and format' do
        subject

        expect(response).to redirect_to(
          "#{project_releases_path(project)}/#{latest_release.tag}/#{suffix_path}")
      end

      context 'suffix path abuse' do
        let(:suffix_path) { 'downloads/zips/../../../../../../../robots.txt' }

        it 'raises attack error' do
          expect do
            subject
          end.to raise_error(Gitlab::PathTraversal::PathTraversalAttackError)
        end
      end

      context 'url parameters' do
        let(:suffix_path) { 'downloads/zips/helm-hello-world.zip' }

        subject do
          get :latest_permalink, params: {
            namespace_id: project.namespace,
            project_id: project,
            suffix_path: suffix_path,
            order_by: 'released_at',
            param_1: 1,
            param_2: 2
          }
        end

        it 'carries over query parameters without order_by parameter in the redirect' do
          subject

          expect(response).to redirect_to(
            "#{project_releases_path(project)}/#{latest_release.tag}/#{suffix_path}?param_1=1&param_2=2")
        end
      end
    end

    context 'order_by parameter' do
      let!(:latest_release) { create(:release, project: project, released_at: Time.current, tag: 'latest') }

      shared_examples_for 'redirects to latest release ordered by using released_at' do
        it do
          expect(Release).to receive(:order_released_desc).and_call_original

          subject

          expect(response).to redirect_to("#{project_releases_path(project)}/#{latest_release.tag}")
        end
      end

      before do
        create(:release, project: project, released_at: 1.day.ago, tag: 'alpha')
        create(:release, project: project, released_at: 2.days.ago, tag: 'beta')
      end

      context 'invalid parameter' do
        let(:user) { developer }

        subject do
          get :latest_permalink, params: {
            namespace_id: project.namespace,
            project_id: project,
            order_by: 'unsupported'
          }
        end

        it_behaves_like 'redirects to latest release ordered by using released_at'
      end

      context 'valid parameter' do
        subject do
          get :latest_permalink, params: {
            namespace_id: project.namespace,
            project_id: project,
            order_by: 'released_at'
          }
        end

        it_behaves_like 'redirects to latest release ordered by using released_at'
      end
    end
  end

  # `GET #downloads` is addressed in spec/requests/projects/releases_controller_spec.rb

  private

  def get_index
    get :index, params: { namespace_id: project.namespace, project_id: project, format: format }
  end
end