gitlab-org--gitlab-foss/app/controllers/projects/artifacts_controller.rb

class Projects::ArtifactsController < Projects::ApplicationController
  layout 'project'
  before_action :authorize_read_build!
  before_action :authorize_update_build!, only: [:keep]
  before_action :validate_artifacts!

  def download
    unless artifacts_file.file_storage?
      return redirect_to artifacts_file.url
    end

    send_file artifacts_file.path, disposition: 'attachment'
  end

  def browse
    directory = params[:path] ? "#{params[:path]}/" : ''
    @entry = build.artifacts_metadata_entry(directory)

    return render_404 unless @entry.exists?
  end

  def file
    entry = build.artifacts_metadata_entry(params[:path])

    if entry.exists?
      render json: { archive: build.artifacts_file.path,
                     entry: Base64.encode64(entry.path) }
    else
      render json: {}, status: 404
    end
  end

  def keep
    build.keep_artifacts!
    redirect_to namespace_project_build_path(project.namespace, project, build)
  end

  def search
    url = namespace_project_build_url(project.namespace, project, build)

    if params[:path]
      redirect_to "#{url}/artifacts/#{params[:path]}"
    else
      render_404
    end
  end

  private

  def validate_artifacts!
    render_404 unless build && build.artifacts?
  end

  def build
    @build ||= build_from_id || build_from_ref
  end

  def build_from_id
    project.builds.find_by(id: params[:build_id]) if params[:build_id]
  end

  def build_from_ref
    if params[:ref]
      builds = project.builds_for(params[:build_name], params[:ref])

      builds.latest.success.first
    end
  end

  def artifacts_file
    @artifacts_file ||= build.artifacts_file
  end
end