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# frozen_string_literal: true

require "abstract_unit"

class Workshop
  extend ActiveModel::Naming
  include ActiveModel::Conversion

  OUT_OF_SCOPE_BLOCK = proc do
    raise "Not executed in controller's context" unless RedirectController === self
    request.original_url
  end

  attr_accessor :id

  def initialize(id)
    @id = id
  end

  def persisted?
    id.present?
  end

  def to_s
    id.to_s
  end
end

class RedirectController < ActionController::Base
  # empty method not used anywhere to ensure methods like
  # `status` and `location` aren't called on `redirect_to` calls
  def status; raise "Should not be called!"; end
  def location; raise "Should not be called!"; end

  def simple_redirect
    redirect_to action: "hello_world"
  end

  def redirect_with_status
    redirect_to(action: "hello_world", status: 301)
  end

  def redirect_with_status_hash
    redirect_to({ action: "hello_world" }, { status: 301 })
  end

  def redirect_with_protocol
    redirect_to action: "hello_world", protocol: "https"
  end

  def url_redirect_with_status
    redirect_to("http://www.example.com", status: :moved_permanently)
  end

  def url_redirect_with_status_hash
    redirect_to("http://www.example.com", status: 301)
  end

  def relative_url_redirect_with_status
    redirect_to("/things/stuff", status: :found)
  end

  def relative_url_redirect_with_status_hash
    redirect_to("/things/stuff", status: 301)
  end

  def redirect_back_with_status
    redirect_back(fallback_location: "/things/stuff", status: 307)
  end

  def safe_redirect_back_with_status
    redirect_back(fallback_location: "/things/stuff", status: 307, allow_other_host: false)
  end

  def host_redirect
    redirect_to action: "other_host", only_path: false, host: "other.test.host"
  end

  def module_redirect
    redirect_to controller: "module_test/module_redirect", action: "hello_world"
  end

  def redirect_to_url
    redirect_to "http://www.rubyonrails.org/"
  end

  def redirect_to_url_with_unescaped_query_string
    redirect_to "http://example.com/query?status=new"
  end

  def redirect_to_url_with_complex_scheme
    redirect_to "x-test+scheme.complex:redirect"
  end

  def redirect_to_url_with_network_path_reference
    redirect_to "//www.rubyonrails.org/"
  end

  def redirect_to_existing_record
    redirect_to Workshop.new(5)
  end

  def redirect_to_new_record
    redirect_to Workshop.new(nil)
  end

  def redirect_to_nil
    redirect_to nil
  end

  def redirect_to_params
    redirect_to ActionController::Parameters.new(status: 200, protocol: "javascript", f: "%0Aeval(name)")
  end

  def redirect_to_with_block
    redirect_to proc { "http://www.rubyonrails.org/" }
  end

  def redirect_to_with_block_and_assigns
    @url = "http://www.rubyonrails.org/"
    redirect_to proc { @url }
  end

  def redirect_to_with_block_and_options
    redirect_to proc { { action: "hello_world" } }
  end

  def redirect_to_out_of_scope_block
    redirect_to Workshop::OUT_OF_SCOPE_BLOCK
  end

  def redirect_with_header_break
    redirect_to "/lol\r\nwat"
  end

  def redirect_with_null_bytes
    redirect_to "\000/lol\r\nwat"
  end

  def rescue_errors(e) raise e end

  private
    def dashbord_url(id, message)
      url_for action: "dashboard", params: { "id" => id, "message" => message }
    end
end

class RedirectTest < ActionController::TestCase
  tests RedirectController

  def test_simple_redirect
    get :simple_redirect
    assert_response :redirect
    assert_equal "http://test.host/redirect/hello_world", redirect_to_url
  end

  def test_redirect_with_header_break
    get :redirect_with_header_break
    assert_response :redirect
    assert_equal "http://test.host/lolwat", redirect_to_url
  end

  def test_redirect_with_null_bytes
    get :redirect_with_null_bytes
    assert_response :redirect
    assert_equal "http://test.host/lolwat", redirect_to_url
  end

  def test_redirect_with_no_status
    get :simple_redirect
    assert_response 302
    assert_equal "http://test.host/redirect/hello_world", redirect_to_url
  end

  def test_redirect_with_status
    get :redirect_with_status
    assert_response 301
    assert_equal "http://test.host/redirect/hello_world", redirect_to_url
  end

  def test_redirect_with_status_hash
    get :redirect_with_status_hash
    assert_response 301
    assert_equal "http://test.host/redirect/hello_world", redirect_to_url
  end

  def test_redirect_with_protocol
    get :redirect_with_protocol
    assert_response 302
    assert_equal "https://test.host/redirect/hello_world", redirect_to_url
  end

  def test_url_redirect_with_status
    get :url_redirect_with_status
    assert_response 301
    assert_equal "http://www.example.com", redirect_to_url
  end

  def test_url_redirect_with_status_hash
    get :url_redirect_with_status_hash
    assert_response 301
    assert_equal "http://www.example.com", redirect_to_url
  end

  def test_relative_url_redirect_with_status
    get :relative_url_redirect_with_status
    assert_response 302
    assert_equal "http://test.host/things/stuff", redirect_to_url
  end

  def test_relative_url_redirect_with_status_hash
    get :relative_url_redirect_with_status_hash
    assert_response 301
    assert_equal "http://test.host/things/stuff", redirect_to_url
  end

  def test_relative_url_redirect_host_with_port
    request.host = "test.host:1234"
    get :relative_url_redirect_with_status
    assert_response 302
    assert_equal "http://test.host:1234/things/stuff", redirect_to_url
  end

  def test_simple_redirect_using_options
    get :host_redirect
    assert_response :redirect
    assert_redirected_to action: "other_host", only_path: false, host: "other.test.host"
  end

  def test_module_redirect
    get :module_redirect
    assert_response :redirect
    assert_redirected_to "http://test.host/module_test/module_redirect/hello_world"
  end

  def test_module_redirect_using_options
    get :module_redirect
    assert_response :redirect
    assert_redirected_to controller: "module_test/module_redirect", action: "hello_world"
  end

  def test_redirect_to_url
    get :redirect_to_url
    assert_response :redirect
    assert_redirected_to "http://www.rubyonrails.org/"
  end

  def test_redirect_to_url_with_unescaped_query_string
    get :redirect_to_url_with_unescaped_query_string
    assert_response :redirect
    assert_redirected_to "http://example.com/query?status=new"
  end

  def test_redirect_to_url_with_complex_scheme
    get :redirect_to_url_with_complex_scheme
    assert_response :redirect
    assert_equal "x-test+scheme.complex:redirect", redirect_to_url
  end

  def test_redirect_to_url_with_network_path_reference
    get :redirect_to_url_with_network_path_reference
    assert_response :redirect
    assert_equal "//www.rubyonrails.org/", redirect_to_url
  end

  def test_redirect_back
    referer = "http://www.example.com/coming/from"
    @request.env["HTTP_REFERER"] = referer

    get :redirect_back_with_status

    assert_response 307
    assert_equal referer, redirect_to_url
  end

  def test_redirect_back_with_no_referer
    get :redirect_back_with_status

    assert_response 307
    assert_equal "http://test.host/things/stuff", redirect_to_url
  end

  def test_safe_redirect_back_from_other_host
    @request.env["HTTP_REFERER"] = "http://another.host/coming/from"
    get :safe_redirect_back_with_status

    assert_response 307
    assert_equal "http://test.host/things/stuff", redirect_to_url
  end

  def test_safe_redirect_back_from_the_same_host
    referer = "http://test.host/coming/from"
    @request.env["HTTP_REFERER"] = referer
    get :safe_redirect_back_with_status

    assert_response 307
    assert_equal referer, redirect_to_url
  end

  def test_redirect_to_record
    with_routing do |set|
      set.draw do
        resources :workshops

        ActiveSupport::Deprecation.silence do
          get ":controller/:action"
        end
      end

      get :redirect_to_existing_record
      assert_equal "http://test.host/workshops/5", redirect_to_url
      assert_redirected_to Workshop.new(5)

      get :redirect_to_new_record
      assert_equal "http://test.host/workshops", redirect_to_url
      assert_redirected_to Workshop.new(nil)
    end
  end

  def test_redirect_to_nil
    error = assert_raise(ActionController::ActionControllerError) do
      get :redirect_to_nil
    end
    assert_equal "Cannot redirect to nil!", error.message
  end

  def test_redirect_to_params
    error = assert_raise(ActionController::UnfilteredParameters) do
      get :redirect_to_params
    end
    assert_equal "unable to convert unpermitted parameters to hash", error.message
  end

  def test_redirect_to_with_block
    get :redirect_to_with_block
    assert_response :redirect
    assert_redirected_to "http://www.rubyonrails.org/"
  end

  def test_redirect_to_with_block_and_assigns
    get :redirect_to_with_block_and_assigns
    assert_response :redirect
    assert_redirected_to "http://www.rubyonrails.org/"
  end

  def test_redirect_to_out_of_scope_block
    get :redirect_to_out_of_scope_block
    assert_response :redirect
    assert_redirected_to "http://test.host/redirect/redirect_to_out_of_scope_block"
  end

  def test_redirect_to_with_block_and_accepted_options
    with_routing do |set|
      set.draw do
        ActiveSupport::Deprecation.silence do
          get ":controller/:action"
        end
      end

      get :redirect_to_with_block_and_options

      assert_response :redirect
      assert_redirected_to "http://test.host/redirect/hello_world"
    end
  end
end

module ModuleTest
  class ModuleRedirectController < ::RedirectController
    def module_redirect
      redirect_to controller: "/redirect", action: "hello_world"
    end
  end

  class ModuleRedirectTest < ActionController::TestCase
    tests ModuleRedirectController

    def test_simple_redirect
      get :simple_redirect
      assert_response :redirect
      assert_equal "http://test.host/module_test/module_redirect/hello_world", redirect_to_url
    end

    def test_simple_redirect_using_options
      get :host_redirect
      assert_response :redirect
      assert_redirected_to action: "other_host", only_path: false, host: "other.test.host"
    end

    def test_module_redirect
      get :module_redirect
      assert_response :redirect
      assert_equal "http://test.host/redirect/hello_world", redirect_to_url
    end

    def test_module_redirect_using_options
      get :module_redirect
      assert_response :redirect
      assert_redirected_to controller: "/redirect", action: "hello_world"
    end
  end
end