rails/actionpack/test/controller/rack_test.rb

require 'abstract_unit'
require 'action_controller/rack_process'

class BaseRackTest < Test::Unit::TestCase
  def setup
    @env = {
      "HTTP_MAX_FORWARDS" => "10",
      "SERVER_NAME" => "glu.ttono.us:8007",
      "FCGI_ROLE" => "RESPONDER",
      "HTTP_X_FORWARDED_HOST" => "glu.ttono.us",
      "HTTP_ACCEPT_ENCODING" => "gzip, deflate",
      "HTTP_USER_AGENT" => "Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en)",
      "PATH_INFO" => "",
      "HTTP_ACCEPT_LANGUAGE" => "en",
      "HTTP_HOST" => "glu.ttono.us:8007",
      "SERVER_PROTOCOL" => "HTTP/1.1",
      "REDIRECT_URI" => "/dispatch.fcgi",
      "SCRIPT_NAME" => "/dispatch.fcgi",
      "SERVER_ADDR" => "207.7.108.53",
      "REMOTE_ADDR" => "207.7.108.53",
      "SERVER_SOFTWARE" => "lighttpd/1.4.5",
      "HTTP_COOKIE" => "_session_id=c84ace84796670c052c6ceb2451fb0f2; is_admin=yes",
      "HTTP_X_FORWARDED_SERVER" => "glu.ttono.us",
      "REQUEST_URI" => "/admin",
      "DOCUMENT_ROOT" => "/home/kevinc/sites/typo/public",
      "SERVER_PORT" => "8007",
      "QUERY_STRING" => "",
      "REMOTE_PORT" => "63137",
      "GATEWAY_INTERFACE" => "CGI/1.1",
      "HTTP_X_FORWARDED_FOR" => "65.88.180.234",
      "HTTP_ACCEPT" => "*/*",
      "SCRIPT_FILENAME" => "/home/kevinc/sites/typo/public/dispatch.fcgi",
      "REDIRECT_STATUS" => "200",
      "REQUEST_METHOD" => "GET"
    }
    @request = ActionController::RackRequest.new(@env)
    # some Nokia phone browsers omit the space after the semicolon separator.
    # some developers have grown accustomed to using comma in cookie values.
    @alt_cookie_fmt_request = ActionController::RackRequest.new(@env.merge({"HTTP_COOKIE"=>"_session_id=c84ace847,96670c052c6ceb2451fb0f2;is_admin=yes"}))
  end

  def default_test; end
end


class RackRequestTest < BaseRackTest
  def test_proxy_request
    assert_equal 'glu.ttono.us', @request.host_with_port
  end

  def test_http_host
    @env.delete "HTTP_X_FORWARDED_HOST"
    @env['HTTP_HOST'] = "rubyonrails.org:8080"
    assert_equal "rubyonrails.org:8080", @request.host_with_port

    @env['HTTP_X_FORWARDED_HOST'] = "www.firsthost.org, www.secondhost.org"
    assert_equal "www.secondhost.org", @request.host
  end

  def test_http_host_with_default_port_overrides_server_port
    @env.delete "HTTP_X_FORWARDED_HOST"
    @env['HTTP_HOST'] = "rubyonrails.org"
    assert_equal "rubyonrails.org", @request.host_with_port
  end

  def test_host_with_port_defaults_to_server_name_if_no_host_headers
    @env.delete "HTTP_X_FORWARDED_HOST"
    @env.delete "HTTP_HOST"
    assert_equal "glu.ttono.us:8007", @request.host_with_port
  end

  def test_host_with_port_falls_back_to_server_addr_if_necessary
    @env.delete "HTTP_X_FORWARDED_HOST"
    @env.delete "HTTP_HOST"
    @env.delete "SERVER_NAME"
    assert_equal "207.7.108.53:8007", @request.host_with_port
  end

  def test_host_with_port_if_http_standard_port_is_specified
    @env['HTTP_X_FORWARDED_HOST'] = "glu.ttono.us:80"
    assert_equal "glu.ttono.us", @request.host_with_port
  end

  def test_host_with_port_if_https_standard_port_is_specified
    @env['HTTP_X_FORWARDED_PROTO'] = "https"
    @env['HTTP_X_FORWARDED_HOST'] = "glu.ttono.us:443"
    assert_equal "glu.ttono.us", @request.host_with_port
  end

  def test_host_if_ipv6_reference
    @env.delete "HTTP_X_FORWARDED_HOST"
    @env['HTTP_HOST'] = "[2001:1234:5678:9abc:def0::dead:beef]"
    assert_equal "[2001:1234:5678:9abc:def0::dead:beef]", @request.host
  end

  def test_host_if_ipv6_reference_with_port
    @env.delete "HTTP_X_FORWARDED_HOST"
    @env['HTTP_HOST'] = "[2001:1234:5678:9abc:def0::dead:beef]:8008"
    assert_equal "[2001:1234:5678:9abc:def0::dead:beef]", @request.host
  end

  def test_cookie_syntax_resilience
    cookies = @request.cookies
    assert_equal ["c84ace84796670c052c6ceb2451fb0f2"], cookies["_session_id"], cookies.inspect
    assert_equal ["yes"], cookies["is_admin"], cookies.inspect

    alt_cookies = @alt_cookie_fmt_request.cookies
    assert_equal ["c84ace847,96670c052c6ceb2451fb0f2"], alt_cookies["_session_id"], alt_cookies.inspect
    assert_equal ["yes"], alt_cookies["is_admin"], alt_cookies.inspect
  end
end


class RackRequestParamsParsingTest < BaseRackTest
  def test_doesnt_break_when_content_type_has_charset
    data = 'flamenco=love'
    @request.env['CONTENT_LENGTH'] = data.length
    @request.env['CONTENT_TYPE'] = 'application/x-www-form-urlencoded; charset=utf-8'
    @request.env['RAW_POST_DATA'] = data
    assert_equal({"flamenco"=> "love"}, @request.request_parameters)
  end

  def test_doesnt_interpret_request_uri_as_query_string_when_missing
    @request.env['REQUEST_URI'] = 'foo'
    assert_equal({}, @request.query_parameters)
  end
end


class RackRequestNeedsRewoundTest < BaseRackTest
  def test_body_should_be_rewound
    data = 'foo'
    @env['rack.input'] = StringIO.new(data)
    @env['CONTENT_LENGTH'] = data.length
    @env['CONTENT_TYPE'] = 'application/x-www-form-urlencoded; charset=utf-8'

    # Read the request body by parsing params.
    request = ActionController::RackRequest.new(@env)
    request.request_parameters

    # Should have rewound the body.
    assert_equal 0, request.body.pos
  end
end


class RackResponseTest < BaseRackTest
  def setup
    super
    @response = ActionController::RackResponse.new(@request)
    @output = StringIO.new('')
  end

  def test_simple_output
    @response.body = "Hello, World!"

    status, headers, body = @response.out(@output)
    assert_equal 200, status
    assert_equal({"Content-Type" => "text/html", "Cache-Control" => "no-cache", "Set-Cookie" => []}, headers)

    parts = []
    body.each { |part| parts << part }
    assert_equal ["Hello, World!"], parts
  end

  def test_streaming_block
    @response.body = Proc.new do |response, output|
      5.times { |n| output.write(n) }
    end

    status, headers, body = @response.out(@output)
    assert_equal 200, status
    assert_equal({"Content-Type" => "text/html", "Cache-Control" => "no-cache", "Set-Cookie" => []}, headers)

    parts = []
    body.each { |part| parts << part }
    assert_equal ["0", "1", "2", "3", "4"], parts
  end

  def test_set_session_cookie
    cookie = CGI::Cookie.new({"name" => "name", "value" => "Josh"})
    @request.cgi.send :instance_variable_set, '@output_cookies', [cookie]

    @response.body = "Hello, World!"

    status, headers, body = @response.out(@output)
    assert_equal 200, status
    assert_equal({
      "Content-Type" => "text/html",
      "Cache-Control" => "no-cache",
      "Set-Cookie" => ["name=Josh; path="]
    }, headers)

    parts = []
    body.each { |part| parts << part }
    assert_equal ["Hello, World!"], parts
  end
end