# frozen_string_literal: true

require "abstract_unit"

class BaseRequestTest < ActiveSupport::TestCase
  def setup
    @env = {
      :ip_spoofing_check => true,
      "rack.input" => "foo"
    }
    @original_tld_length = ActionDispatch::Http::URL.tld_length
  end

  def teardown
    ActionDispatch::Http::URL.tld_length = @original_tld_length
  end

  def url_for(options = {})
    options = { host: "www.example.com" }.merge!(options)
    ActionDispatch::Http::URL.url_for(options)
  end

  private
    def stub_request(env = {})
      ip_spoofing_check = env.key?(:ip_spoofing_check) ? env.delete(:ip_spoofing_check) : true
      @trusted_proxies ||= nil
      ip_app = ActionDispatch::RemoteIp.new(Proc.new { }, ip_spoofing_check, @trusted_proxies)
      ActionDispatch::Http::URL.tld_length = env.delete(:tld_length) if env.key?(:tld_length)

      ip_app.call(env)

      env = @env.merge(env)
      ActionDispatch::Request.new(env)
    end
end

class RequestUrlFor < BaseRequestTest
  test "url_for class method" do
    e = assert_raise(ArgumentError) { url_for(host: nil) }
    assert_match(/Please provide the :host parameter/, e.message)

    assert_equal "/books", url_for(only_path: true, path: "/books")

    assert_equal "http://www.example.com/books/?q=code", url_for(trailing_slash: true, path: "/books?q=code")
    assert_equal "http://www.example.com/books/?spareslashes=////", url_for(trailing_slash: true, path: "/books?spareslashes=////")

    assert_equal "http://www.example.com",  url_for
    assert_equal "http://api.example.com",  url_for(subdomain: "api")
    assert_equal "http://example.com",      url_for(subdomain: false)
    assert_equal "http://www.ror.com",      url_for(domain: "ror.com")
    assert_equal "http://api.ror.co.uk",    url_for(host: "www.ror.co.uk", subdomain: "api", tld_length: 2)
    assert_equal "http://www.example.com:8080",   url_for(port: 8080)
    assert_equal "https://www.example.com",       url_for(protocol: "https")
    assert_equal "http://www.example.com/docs",   url_for(path: "/docs")
    assert_equal "http://www.example.com#signup", url_for(anchor: "signup")
    assert_equal "http://www.example.com/",       url_for(trailing_slash: true)
    assert_equal "http://dhh:supersecret@www.example.com", url_for(user: "dhh", password: "supersecret")
    assert_equal "http://www.example.com?search=books",    url_for(params: { search: "books" })
    assert_equal "http://www.example.com?params=",  url_for(params: "")
    assert_equal "http://www.example.com?params=1", url_for(params: 1)
  end
end

class RequestIP < BaseRequestTest
  test "remote ip" do
    request = stub_request "REMOTE_ADDR" => "1.2.3.4"
    assert_equal "1.2.3.4", request.remote_ip

    request = stub_request "REMOTE_ADDR" => "1.2.3.4,3.4.5.6"
    assert_equal "3.4.5.6", request.remote_ip

    request = stub_request "REMOTE_ADDR" => "1.2.3.4",
                           "HTTP_X_FORWARDED_FOR" => "3.4.5.6"
    assert_equal "3.4.5.6", request.remote_ip

    request = stub_request "REMOTE_ADDR" => "127.0.0.1",
                           "HTTP_X_FORWARDED_FOR" => "3.4.5.6"
    assert_equal "3.4.5.6", request.remote_ip

    request = stub_request "REMOTE_ADDR" => "127.0.0.1",
                           "HTTP_X_FORWARDED_FOR" => "172.31.4.4, 10.0.0.1"
    assert_equal "172.31.4.4", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "3.4.5.6,unknown"
    assert_equal "3.4.5.6", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "3.4.5.6,172.16.0.1"
    assert_equal "3.4.5.6", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "3.4.5.6,192.168.0.1"
    assert_equal "3.4.5.6", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "3.4.5.6,10.0.0.1"
    assert_equal "3.4.5.6", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "172.31.4.4, 10.0.0.1"
    assert_equal "172.31.4.4", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "3.4.5.6, 10.0.0.1, 10.0.0.1"
    assert_equal "3.4.5.6", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "3.4.5.6,127.0.0.1"
    assert_equal "3.4.5.6", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "unknown,192.168.0.1"
    assert_equal "192.168.0.1", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "9.9.9.9, 3.4.5.6, 172.31.4.4, 10.0.0.1"
    assert_equal "3.4.5.6", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "not_ip_address"
    assert_nil request.remote_ip

    request = stub_request "REMOTE_ADDR" => "1.2.3.4"
    assert_equal "1.2.3.4", request.remote_ip
    request.remote_ip = "2.3.4.5"
    assert_equal "2.3.4.5", request.remote_ip
  end

  test "remote ip spoof detection" do
    request = stub_request "HTTP_X_FORWARDED_FOR" => "1.1.1.1",
                           "HTTP_CLIENT_IP"       => "2.2.2.2"
    e = assert_raise(ActionDispatch::RemoteIp::IpSpoofAttackError) {
      request.remote_ip
    }
    assert_match(/IP spoofing attack/, e.message)
    assert_match(/HTTP_X_FORWARDED_FOR="1\.1\.1\.1"/, e.message)
    assert_match(/HTTP_CLIENT_IP="2\.2\.2\.2"/, e.message)
  end

  test "remote ip with spoof detection disabled" do
    request = stub_request "HTTP_X_FORWARDED_FOR" => "1.1.1.1",
                           "HTTP_CLIENT_IP"       => "2.2.2.2",
                           :ip_spoofing_check => false
    assert_equal "1.1.1.1", request.remote_ip
  end

  test "remote ip spoof protection ignores private addresses" do
    request = stub_request "HTTP_X_FORWARDED_FOR" => "172.17.19.51",
                           "HTTP_CLIENT_IP"       => "172.17.19.51",
                           "REMOTE_ADDR"          => "1.1.1.1",
                           "HTTP_X_BLUECOAT_VIA"  => "de462e07a2db325e"
    assert_equal "1.1.1.1", request.remote_ip
  end

  test "remote ip v6" do
    request = stub_request "REMOTE_ADDR" => "2001:0db8:85a3:0000:0000:8a2e:0370:7334"
    assert_equal "2001:0db8:85a3:0000:0000:8a2e:0370:7334", request.remote_ip

    request = stub_request "REMOTE_ADDR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329,2001:0db8:85a3:0000:0000:8a2e:0370:7334"
    assert_equal "2001:0db8:85a3:0000:0000:8a2e:0370:7334", request.remote_ip

    request = stub_request "REMOTE_ADDR" => "2001:0db8:85a3:0000:0000:8a2e:0370:7334",
                           "HTTP_X_FORWARDED_FOR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329"
    assert_equal "fe80:0000:0000:0000:0202:b3ff:fe1e:8329", request.remote_ip

    request = stub_request "REMOTE_ADDR" => "::1",
                           "HTTP_X_FORWARDED_FOR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329"
    assert_equal "fe80:0000:0000:0000:0202:b3ff:fe1e:8329", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329,unknown"
    assert_equal "fe80:0000:0000:0000:0202:b3ff:fe1e:8329", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329,::1"
    assert_equal "fe80:0000:0000:0000:0202:b3ff:fe1e:8329", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329, ::1, ::1"
    assert_equal "fe80:0000:0000:0000:0202:b3ff:fe1e:8329", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "unknown,::1"
    assert_equal "::1", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "2001:0db8:85a3:0000:0000:8a2e:0370:7334, fe80:0000:0000:0000:0202:b3ff:fe1e:8329, ::1, fc00::, fc01::, fdff"
    assert_equal "fe80:0000:0000:0000:0202:b3ff:fe1e:8329", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "FE00::, FDFF::"
    assert_equal "FE00::", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "not_ip_address"
    assert_nil request.remote_ip
  end

  test "remote ip v6 spoof detection" do
    request = stub_request "HTTP_X_FORWARDED_FOR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329",
                           "HTTP_CLIENT_IP"       => "2001:0db8:85a3:0000:0000:8a2e:0370:7334"
    e = assert_raise(ActionDispatch::RemoteIp::IpSpoofAttackError) {
      request.remote_ip
    }
    assert_match(/IP spoofing attack/, e.message)
    assert_match(/HTTP_X_FORWARDED_FOR="fe80:0000:0000:0000:0202:b3ff:fe1e:8329"/, e.message)
    assert_match(/HTTP_CLIENT_IP="2001:0db8:85a3:0000:0000:8a2e:0370:7334"/, e.message)
  end

  test "remote ip v6 spoof detection disabled" do
    request = stub_request "HTTP_X_FORWARDED_FOR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329",
                           "HTTP_CLIENT_IP"       => "2001:0db8:85a3:0000:0000:8a2e:0370:7334",
                           :ip_spoofing_check     => false
    assert_equal "fe80:0000:0000:0000:0202:b3ff:fe1e:8329", request.remote_ip
  end

  test "remote ip with user specified trusted proxies String" do
    @trusted_proxies = "67.205.106.73"

    request = stub_request "REMOTE_ADDR" => "3.4.5.6",
                           "HTTP_X_FORWARDED_FOR" => "67.205.106.73"
    assert_equal "3.4.5.6", request.remote_ip

    request = stub_request "REMOTE_ADDR" => "172.16.0.1,67.205.106.73",
                           "HTTP_X_FORWARDED_FOR" => "67.205.106.73"
    assert_equal "67.205.106.73", request.remote_ip

    request = stub_request "REMOTE_ADDR" => "67.205.106.73,3.4.5.6",
                           "HTTP_X_FORWARDED_FOR" => "67.205.106.73"
    assert_equal "3.4.5.6", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "67.205.106.73,unknown"
    assert_equal "67.205.106.73", request.remote_ip # change

    request = stub_request "HTTP_X_FORWARDED_FOR" => "9.9.9.9, 3.4.5.6, 10.0.0.1, 67.205.106.73"
    assert_equal "3.4.5.6", request.remote_ip
  end

  test "remote ip v6 with user specified trusted proxies String" do
    @trusted_proxies = "fe80:0000:0000:0000:0202:b3ff:fe1e:8329"

    request = stub_request "REMOTE_ADDR" => "2001:0db8:85a3:0000:0000:8a2e:0370:7334",
                           "HTTP_X_FORWARDED_FOR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329"
    assert_equal "2001:0db8:85a3:0000:0000:8a2e:0370:7334", request.remote_ip

    request = stub_request "REMOTE_ADDR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329,2001:0db8:85a3:0000:0000:8a2e:0370:7334",
                           "HTTP_X_FORWARDED_FOR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329"
    assert_equal "2001:0db8:85a3:0000:0000:8a2e:0370:7334", request.remote_ip

    request = stub_request "REMOTE_ADDR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329,::1",
                           "HTTP_X_FORWARDED_FOR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329"
    assert_equal "fe80:0000:0000:0000:0202:b3ff:fe1e:8329", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "unknown,fe80:0000:0000:0000:0202:b3ff:fe1e:8329"
    assert_equal "fe80:0000:0000:0000:0202:b3ff:fe1e:8329", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329,2001:0db8:85a3:0000:0000:8a2e:0370:7334"
    assert_equal "2001:0db8:85a3:0000:0000:8a2e:0370:7334", request.remote_ip
  end

  test "remote ip with user specified trusted proxies Regexp" do
    @trusted_proxies = /^67\.205\.106\.73$/i

    request = stub_request "REMOTE_ADDR" => "67.205.106.73",
                           "HTTP_X_FORWARDED_FOR" => "3.4.5.6"
    assert_equal "3.4.5.6", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "10.0.0.1, 9.9.9.9, 3.4.5.6, 67.205.106.73"
    assert_equal "3.4.5.6", request.remote_ip
  end

  test "remote ip v6 with user specified trusted proxies Regexp" do
    @trusted_proxies = /^fe80:0000:0000:0000:0202:b3ff:fe1e:8329$/i

    request = stub_request "REMOTE_ADDR" => "2001:0db8:85a3:0000:0000:8a2e:0370:7334",
                           "HTTP_X_FORWARDED_FOR" => "fe80:0000:0000:0000:0202:b3ff:fe1e:8329"
    assert_equal "2001:0db8:85a3:0000:0000:8a2e:0370:7334", request.remote_ip

    request = stub_request "HTTP_X_FORWARDED_FOR" => "2001:0db8:85a3:0000:0000:8a2e:0370:7334, fe80:0000:0000:0000:0202:b3ff:fe1e:8329"
    assert_equal "2001:0db8:85a3:0000:0000:8a2e:0370:7334", request.remote_ip
  end

  test "remote ip middleware not present still returns an IP" do
    request = stub_request("REMOTE_ADDR" => "127.0.0.1")
    assert_equal "127.0.0.1", request.remote_ip
  end
end

class RequestDomain < BaseRequestTest
  test "domains" do
    request = stub_request "HTTP_HOST" => "192.168.1.200"
    assert_nil request.domain

    request = stub_request "HTTP_HOST" => "foo.192.168.1.200"
    assert_nil request.domain

    request = stub_request "HTTP_HOST" => "192.168.1.200.com"
    assert_equal "200.com", request.domain

    request = stub_request "HTTP_HOST" => "www.rubyonrails.org"
    assert_equal "rubyonrails.org", request.domain

    request = stub_request "HTTP_HOST" => "www.rubyonrails.co.uk"
    assert_equal "rubyonrails.co.uk", request.domain(2)

    request = stub_request "HTTP_HOST" => "www.rubyonrails.co.uk", :tld_length => 2
    assert_equal "rubyonrails.co.uk", request.domain
  end

  test "subdomains" do
    request = stub_request "HTTP_HOST" => "foobar.foobar.com"
    assert_equal %w( foobar ), request.subdomains
    assert_equal "foobar", request.subdomain

    request = stub_request "HTTP_HOST" => "192.168.1.200"
    assert_equal [], request.subdomains
    assert_equal "", request.subdomain

    request = stub_request "HTTP_HOST" => "foo.192.168.1.200"
    assert_equal [], request.subdomains
    assert_equal "", request.subdomain

    request = stub_request "HTTP_HOST" => "192.168.1.200.com"
    assert_equal %w( 192 168 1 ), request.subdomains
    assert_equal "192.168.1", request.subdomain

    request = stub_request "HTTP_HOST" => nil
    assert_equal [], request.subdomains
    assert_equal "", request.subdomain

    request = stub_request "HTTP_HOST" => "www.rubyonrails.org"
    assert_equal %w( www ), request.subdomains
    assert_equal "www", request.subdomain

    request = stub_request "HTTP_HOST" => "www.rubyonrails.co.uk"
    assert_equal %w( www ), request.subdomains(2)
    assert_equal "www", request.subdomain(2)

    request = stub_request "HTTP_HOST" => "dev.www.rubyonrails.co.uk"
    assert_equal %w( dev www ), request.subdomains(2)
    assert_equal "dev.www", request.subdomain(2)

    request = stub_request "HTTP_HOST" => "dev.www.rubyonrails.co.uk", :tld_length => 2
    assert_equal %w( dev www ), request.subdomains
    assert_equal "dev.www", request.subdomain
  end
end

class RequestPort < BaseRequestTest
  test "standard_port" do
    request = stub_request
    assert_equal 80, request.standard_port

    request = stub_request "HTTPS" => "on"
    assert_equal 443, request.standard_port
  end

  test "standard_port?" do
    request = stub_request
    assert_not_predicate request, :ssl?
    assert_predicate request, :standard_port?

    request = stub_request "HTTPS" => "on"
    assert_predicate request, :ssl?
    assert_predicate request, :standard_port?

    request = stub_request "HTTP_HOST" => "www.example.org:8080"
    assert_not_predicate request, :ssl?
    assert_not_predicate request, :standard_port?

    request = stub_request "HTTP_HOST" => "www.example.org:8443", "HTTPS" => "on"
    assert_predicate request, :ssl?
    assert_not_predicate request, :standard_port?
  end

  test "optional port" do
    request = stub_request "HTTP_HOST" => "www.example.org:80"
    assert_nil request.optional_port

    request = stub_request "HTTP_HOST" => "www.example.org:8080"
    assert_equal 8080, request.optional_port
  end

  test "port string" do
    request = stub_request "HTTP_HOST" => "www.example.org:80"
    assert_equal "", request.port_string

    request = stub_request "HTTP_HOST" => "www.example.org:8080"
    assert_equal ":8080", request.port_string
  end

  test "server port" do
    request = stub_request "SERVER_PORT" => "8080"
    assert_equal 8080, request.server_port

    request = stub_request "SERVER_PORT" => "80"
    assert_equal 80, request.server_port

    request = stub_request "SERVER_PORT" => ""
    assert_equal 0, request.server_port
  end
end

class RequestPath < BaseRequestTest
  test "full path" do
    request = stub_request "SCRIPT_NAME" => "", "PATH_INFO" => "/path/of/some/uri", "QUERY_STRING" => "mapped=1"
    assert_equal "/path/of/some/uri?mapped=1", request.fullpath
    assert_equal "/path/of/some/uri",          request.path_info

    request = stub_request "SCRIPT_NAME" => "", "PATH_INFO" => "/path/of/some/uri"
    assert_equal "/path/of/some/uri", request.fullpath
    assert_equal "/path/of/some/uri", request.path_info

    request = stub_request "SCRIPT_NAME" => "", "PATH_INFO" => "/"
    assert_equal "/", request.fullpath
    assert_equal "/", request.path_info

    request = stub_request "SCRIPT_NAME" => "", "PATH_INFO" => "/", "QUERY_STRING" => "m=b"
    assert_equal "/?m=b", request.fullpath
    assert_equal "/",     request.path_info

    request = stub_request "SCRIPT_NAME" => "/hieraki", "PATH_INFO" => "/"
    assert_equal "/hieraki/", request.fullpath
    assert_equal "/",         request.path_info

    request = stub_request "SCRIPT_NAME" => "/collaboration/hieraki", "PATH_INFO" => "/books/edit/2"
    assert_equal "/collaboration/hieraki/books/edit/2", request.fullpath
    assert_equal "/books/edit/2",                       request.path_info

    request = stub_request "SCRIPT_NAME" => "/path", "PATH_INFO" => "/of/some/uri", "QUERY_STRING" => "mapped=1"
    assert_equal "/path/of/some/uri?mapped=1", request.fullpath
    assert_equal "/of/some/uri",               request.path_info
  end

  test "original_fullpath returns ORIGINAL_FULLPATH" do
    request = stub_request("ORIGINAL_FULLPATH" => "/foo?bar")

    path = request.original_fullpath
    assert_equal "/foo?bar", path
  end

  test "original_url returns URL built using ORIGINAL_FULLPATH" do
    request = stub_request("ORIGINAL_FULLPATH" => "/foo?bar",
                           "HTTP_HOST"         => "example.org",
                           "rack.url_scheme"   => "http")

    url = request.original_url
    assert_equal "http://example.org/foo?bar", url
  end

  test "original_fullpath returns fullpath if ORIGINAL_FULLPATH is not present" do
    request = stub_request("PATH_INFO"    => "/foo",
                           "QUERY_STRING" => "bar")

    path = request.original_fullpath
    assert_equal "/foo?bar", path
  end
end

class RequestHost < BaseRequestTest
  test "host without specifying port" do
    request = stub_request "HTTP_HOST" => "rubyonrails.org"
    assert_equal "rubyonrails.org", request.host_with_port
  end

  test "host with default port" do
    request = stub_request "HTTP_HOST" => "rubyonrails.org:80"
    assert_equal "rubyonrails.org", request.host_with_port
  end

  test "host with non default port" do
    request = stub_request "HTTP_HOST" => "rubyonrails.org:81"
    assert_equal "rubyonrails.org:81", request.host_with_port
  end

  test "raw without specifying port" do
    request = stub_request "HTTP_HOST" => "rubyonrails.org"
    assert_equal "rubyonrails.org", request.raw_host_with_port
  end

  test "raw host with default port" do
    request = stub_request "HTTP_HOST" => "rubyonrails.org:80"
    assert_equal "rubyonrails.org:80", request.raw_host_with_port
  end

  test "raw host with non default port" do
    request = stub_request "HTTP_HOST" => "rubyonrails.org:81"
    assert_equal "rubyonrails.org:81", request.raw_host_with_port
  end

  test "proxy request" do
    request = stub_request "HTTP_HOST" => "glu.ttono.us:80"
    assert_equal "glu.ttono.us", request.host_with_port
  end

  test "http host" do
    request = stub_request "HTTP_HOST" => "rubyonrails.org:8080"
    assert_equal "rubyonrails.org", request.host
    assert_equal "rubyonrails.org:8080", request.host_with_port

    request = stub_request "HTTP_X_FORWARDED_HOST" => "www.firsthost.org, www.secondhost.org"
    assert_equal "www.secondhost.org", request.host

    request = stub_request "HTTP_X_FORWARDED_HOST" => "", "HTTP_HOST" => "rubyonrails.org"
    assert_equal "rubyonrails.org", request.host
  end

  test "http host with default port overrides server port" do
    request = stub_request "HTTP_HOST" => "rubyonrails.org"
    assert_equal "rubyonrails.org", request.host_with_port
  end

  test "host with port if http standard port is specified" do
    request = stub_request "HTTP_X_FORWARDED_HOST" => "glu.ttono.us:80"
    assert_equal "glu.ttono.us", request.host_with_port
  end

  test "host with port if https standard port is specified" do
    request = stub_request(
      "HTTP_X_FORWARDED_PROTO" => "https",
      "HTTP_X_FORWARDED_HOST" => "glu.ttono.us:443"
    )
    assert_equal "glu.ttono.us", request.host_with_port
  end

  test "host if ipv6 reference" do
    request = stub_request "HTTP_HOST" => "[2001:1234:5678:9abc:def0::dead:beef]"
    assert_equal "[2001:1234:5678:9abc:def0::dead:beef]", request.host
  end

  test "host if ipv6 reference with port" do
    request = stub_request "HTTP_HOST" => "[2001:1234:5678:9abc:def0::dead:beef]:8008"
    assert_equal "[2001:1234:5678:9abc:def0::dead:beef]", request.host
  end
end

class RequestCGI < BaseRequestTest
  test "CGI environment variables" do
    request = stub_request(
      "AUTH_TYPE" => "Basic",
      "GATEWAY_INTERFACE" => "CGI/1.1",
      "HTTP_ACCEPT" => "*/*",
      "HTTP_ACCEPT_CHARSET" => "UTF-8",
      "HTTP_ACCEPT_ENCODING" => "gzip, deflate",
      "HTTP_ACCEPT_LANGUAGE" => "en",
      "HTTP_CACHE_CONTROL" => "no-cache, max-age=0",
      "HTTP_FROM" => "googlebot",
      "HTTP_HOST" => "glu.ttono.us:8007",
      "HTTP_NEGOTIATE" => "trans",
      "HTTP_PRAGMA" => "no-cache",
      "HTTP_REFERER" => "http://www.google.com/search?q=glu.ttono.us",
      "HTTP_USER_AGENT" => "Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en)",
      "PATH_INFO" => "/homepage/",
      "PATH_TRANSLATED" => "/home/kevinc/sites/typo/public/homepage/",
      "QUERY_STRING" => "",
      "REMOTE_ADDR" => "207.7.108.53",
      "REMOTE_HOST" => "google.com",
      "REMOTE_IDENT" => "kevin",
      "REMOTE_USER" => "kevin",
      "REQUEST_METHOD" => "GET",
      "SCRIPT_NAME" => "/dispatch.fcgi",
      "SERVER_NAME" => "glu.ttono.us",
      "SERVER_PORT" => "8007",
      "SERVER_PROTOCOL" => "HTTP/1.1",
      "SERVER_SOFTWARE" => "lighttpd/1.4.5",
    )

    assert_equal "Basic", request.auth_type
    assert_equal 0, request.content_length
    assert_nil request.content_mime_type
    assert_equal "CGI/1.1", request.gateway_interface
    assert_equal "*/*", request.accept
    assert_equal "UTF-8", request.accept_charset
    assert_equal "gzip, deflate", request.accept_encoding
    assert_equal "en", request.accept_language
    assert_equal "no-cache, max-age=0", request.cache_control
    assert_equal "googlebot", request.from
    assert_equal "glu.ttono.us", request.host
    assert_equal "trans", request.negotiate
    assert_equal "no-cache", request.pragma
    assert_equal "http://www.google.com/search?q=glu.ttono.us", request.referer
    assert_equal "Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en)", request.user_agent
    assert_equal "/homepage/", request.path_info
    assert_equal "/home/kevinc/sites/typo/public/homepage/", request.path_translated
    assert_equal "", request.query_string
    assert_equal "207.7.108.53", request.remote_addr
    assert_equal "google.com", request.remote_host
    assert_equal "kevin", request.remote_ident
    assert_equal "kevin", request.remote_user
    assert_equal "GET", request.request_method
    assert_equal "/dispatch.fcgi", request.script_name
    assert_equal "glu.ttono.us", request.server_name
    assert_equal 8007, request.server_port
    assert_equal "HTTP/1.1", request.server_protocol
    assert_equal "lighttpd", request.server_software
  end
end

class LocalhostTest < BaseRequestTest
  test "IPs that match localhost" do
    request = stub_request("REMOTE_IP" => "127.1.1.1", "REMOTE_ADDR" => "127.1.1.1")
    assert_predicate request, :local?
  end
end

class RequestCookie < BaseRequestTest
  test "cookie syntax resilience" do
    request = stub_request("HTTP_COOKIE" => "_session_id=c84ace84796670c052c6ceb2451fb0f2; is_admin=yes")
    assert_equal "c84ace84796670c052c6ceb2451fb0f2", request.cookies["_session_id"], request.cookies.inspect
    assert_equal "yes", request.cookies["is_admin"], request.cookies.inspect
  end
end

class RequestParamsParsing < BaseRequestTest
  test "doesnt break when content type has charset" do
    request = stub_request(
      "REQUEST_METHOD" => "POST",
      "CONTENT_LENGTH" => "flamenco=love".length,
      "CONTENT_TYPE" => "application/x-www-form-urlencoded; charset=utf-8",
      "rack.input" => StringIO.new("flamenco=love")
    )

    assert_equal({ "flamenco" => "love" }, request.request_parameters)
  end

  test "doesnt interpret request uri as query string when missing" do
    request = stub_request("REQUEST_URI" => "foo")
    assert_equal({}, request.query_parameters)
  end
end

class RequestRewind < BaseRequestTest
  test "body should be rewound" do
    data = "rewind"
    env = {
      "rack.input" => StringIO.new(data),
      "CONTENT_LENGTH" => data.length,
      "CONTENT_TYPE" => "application/x-www-form-urlencoded; charset=utf-8"
    }

    # Read the request body by parsing params.
    request = stub_request(env)
    request.request_parameters

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

  test "raw_post rewinds rack.input if RAW_POST_DATA is nil" do
    request = stub_request(
      "rack.input" => StringIO.new("raw"),
      "CONTENT_LENGTH" => 3
    )
    assert_equal "raw", request.raw_post
    assert_equal "raw", request.env["rack.input"].read
  end
end

class RequestProtocol < BaseRequestTest
  test "server software" do
    assert_equal "lighttpd", stub_request("SERVER_SOFTWARE" => "lighttpd/1.4.5").server_software
    assert_equal "apache", stub_request("SERVER_SOFTWARE" => "Apache3.422").server_software
  end

  test "xml http request" do
    request = stub_request

    assert_not_predicate request, :xml_http_request?
    assert_not_predicate request, :xhr?

    request = stub_request "HTTP_X_REQUESTED_WITH" => "DefinitelyNotAjax1.0"
    assert_not_predicate request, :xml_http_request?
    assert_not_predicate request, :xhr?

    request = stub_request "HTTP_X_REQUESTED_WITH" => "XMLHttpRequest"
    assert_predicate request, :xml_http_request?
    assert_predicate request, :xhr?
  end

  test "reports ssl" do
    assert_not_predicate stub_request, :ssl?
    assert_predicate stub_request("HTTPS" => "on"), :ssl?
  end

  test "reports ssl when proxied via lighttpd" do
    assert_predicate stub_request("HTTP_X_FORWARDED_PROTO" => "https"), :ssl?
  end

  test "scheme returns https when proxied" do
    request = stub_request "rack.url_scheme" => "http"
    assert_not_predicate request, :ssl?
    assert_equal "http", request.scheme

    request = stub_request(
      "rack.url_scheme" => "http",
      "HTTP_X_FORWARDED_PROTO" => "https"
    )
    assert_predicate request, :ssl?
    assert_equal "https", request.scheme
  end
end

class RequestMethod < BaseRequestTest
  test "method returns environment's request method when it has not been
    overridden by middleware".squish do
    ActionDispatch::Request::HTTP_METHODS.each do |method|
      request = stub_request("REQUEST_METHOD" => method)

      assert_equal method, request.method
      assert_equal method.underscore.to_sym, request.method_symbol
    end
  end

  test "allow request method hacking" do
    request = stub_request("REQUEST_METHOD" => "POST")

    assert_equal "POST", request.request_method
    assert_equal "POST", request.env["REQUEST_METHOD"]

    request.request_method = "GET"

    assert_equal "GET", request.request_method
    assert_equal "GET", request.env["REQUEST_METHOD"]
    assert_predicate request, :get?
  end

  test "invalid http method raises exception" do
    assert_raise(ActionController::UnknownHttpMethod) do
      stub_request("REQUEST_METHOD" => "RANDOM_METHOD").request_method
    end
  end

  test "method returns original value of environment request method on POST" do
    request = stub_request("rack.methodoverride.original_method" => "POST")
    assert_equal "POST", request.method
  end

  test "method raises exception on invalid HTTP method" do
    assert_raise(ActionController::UnknownHttpMethod) do
      stub_request("rack.methodoverride.original_method" => "_RANDOM_METHOD").method
    end

    assert_raise(ActionController::UnknownHttpMethod) do
      stub_request("REQUEST_METHOD" => "_RANDOM_METHOD").method
    end
  end

  test "exception on invalid HTTP method unaffected by I18n settings" do
    old_locales = I18n.available_locales
    old_enforce = I18n.config.enforce_available_locales

    begin
      I18n.available_locales = [:nl]
      I18n.config.enforce_available_locales = true
      assert_raise(ActionController::UnknownHttpMethod) do
        stub_request("REQUEST_METHOD" => "_RANDOM_METHOD").method
      end
    ensure
      I18n.available_locales = old_locales
      I18n.config.enforce_available_locales = old_enforce
    end
  end

  test "post masquerading as patch" do
    request = stub_request(
      "REQUEST_METHOD" => "PATCH",
      "rack.methodoverride.original_method" => "POST"
    )

    assert_equal "POST", request.method
    assert_equal "PATCH",  request.request_method
    assert_predicate request, :patch?
  end

  test "post masquerading as put" do
    request = stub_request(
      "REQUEST_METHOD" => "PUT",
      "rack.methodoverride.original_method" => "POST"
    )
    assert_equal "POST", request.method
    assert_equal "PUT",  request.request_method
    assert_predicate request, :put?
  end

  test "post uneffected by local inflections" do
    existing_acronyms = ActiveSupport::Inflector.inflections.acronyms.dup
    begin
      ActiveSupport::Inflector.inflections do |inflect|
        inflect.acronym "POS"
      end
      assert_equal "pos_t", "POST".underscore
      request = stub_request "REQUEST_METHOD" => "POST"
      assert_equal :post, ActionDispatch::Request::HTTP_METHOD_LOOKUP["POST"]
      assert_equal :post, request.method_symbol
      assert_predicate request, :post?
    ensure
      # Reset original acronym set
      ActiveSupport::Inflector.inflections do |inflect|
        inflect.send(:instance_variable_set, "@acronyms", existing_acronyms)
        inflect.send(:define_acronym_regex_patterns)
      end
    end
  end
end

class RequestFormat < BaseRequestTest
  test "xml format" do
    request = stub_request "QUERY_STRING" => "format=xml"

    assert_equal Mime[:xml], request.format
  end

  test "xhtml format" do
    request = stub_request "QUERY_STRING" => "format=xhtml"

    assert_equal Mime[:html], request.format
  end

  test "txt format" do
    request = stub_request "QUERY_STRING" => "format=txt"

    assert_equal Mime[:text], request.format
  end

  test "XMLHttpRequest" do
    request = stub_request(
      "HTTP_X_REQUESTED_WITH" => "XMLHttpRequest",
      "HTTP_ACCEPT" => [Mime[:js], Mime[:html], Mime[:xml], "text/xml", "*/*"].join(","),
      "QUERY_STRING" => ""
    )

    assert_predicate request, :xhr?
    assert_equal Mime[:js], request.format
  end

  test "can override format with parameter negative" do
    request = stub_request("QUERY_STRING" => "format=txt")

    assert_not_predicate request.format, :xml?
  end

  test "can override format with parameter positive" do
    request = stub_request("QUERY_STRING" => "format=xml")

    assert_predicate request.format, :xml?
  end

  test "formats text/html with accept header" do
    request = stub_request "HTTP_ACCEPT" => "text/html"
    assert_equal [Mime[:html]], request.formats
  end

  test "formats blank with accept header" do
    request = stub_request "HTTP_ACCEPT" => ""
    assert_equal [Mime[:html]], request.formats
  end

  test "formats XMLHttpRequest with accept header" do
    request = stub_request "HTTP_X_REQUESTED_WITH" => "XMLHttpRequest"
    assert_equal [Mime[:js]], request.formats
  end

  test "formats application/xml with accept header" do
    request = stub_request("CONTENT_TYPE" => "application/xml; charset=UTF-8",
                           "HTTP_X_REQUESTED_WITH" => "XMLHttpRequest")
    assert_equal [Mime[:xml]], request.formats
  end

  test "formats format:text with accept header" do
    request = stub_request("QUERY_STRING" => "format=txt")

    assert_equal [Mime[:text]], request.formats
  end

  test "formats format:unknown with accept header" do
    request = stub_request("QUERY_STRING" => "format=unknown")

    assert_instance_of Mime::NullType, request.format
  end

  test "format is not nil with unknown format" do
    request = stub_request("QUERY_STRING" => "format=hello")

    assert_nil request.format
    assert_not_predicate request.format, :html?
    assert_not_predicate request.format, :xml?
    assert_not_predicate request.format, :json?
  end

  test "format does not throw exceptions when malformed GET parameters" do
    request = stub_request("QUERY_STRING" => "x[y]=1&x[y][][w]=2")
    assert request.formats
    assert_predicate request.format, :html?
  end

  test "format does not throw exceptions when invalid POST parameters" do
    body = "{record:{content:127.0.0.1}}"
    request = stub_request(
      "REQUEST_METHOD" => "POST",
      "CONTENT_LENGTH" => body.length,
      "CONTENT_TYPE" => "application/json",
      "rack.input" => StringIO.new(body),
      "action_dispatch.logger" => Logger.new(output = StringIO.new)
    )
    assert request.formats
    assert request.format.html?

    output.rewind && (err = output.read)
    assert_match(/Error occurred while parsing request parameters/, err)
  end

  test "formats with xhr request" do
    request = stub_request "HTTP_X_REQUESTED_WITH" => "XMLHttpRequest",
                           "QUERY_STRING" => ""

    assert_equal [Mime[:js]], request.formats
  end

  test "ignore_accept_header" do
    old_ignore_accept_header = ActionDispatch::Request.ignore_accept_header
    ActionDispatch::Request.ignore_accept_header = true

    begin
      request = stub_request "HTTP_ACCEPT" => "application/xml",
                             "QUERY_STRING" => ""

      assert_equal [ Mime[:html] ], request.formats

      request = stub_request "HTTP_ACCEPT" => "koz-asked/something-crazy",
                             "QUERY_STRING" => ""

      assert_equal [ Mime[:html] ], request.formats

      request = stub_request "HTTP_ACCEPT" => "*/*;q=0.1",
                             "QUERY_STRING" => ""

      assert_equal [ Mime[:html] ], request.formats

      request = stub_request "HTTP_ACCEPT" => "application/jxw",
                             "QUERY_STRING" => ""

      assert_equal [ Mime[:html] ], request.formats

      request = stub_request "HTTP_ACCEPT" => "application/xml",
                             "HTTP_X_REQUESTED_WITH" => "XMLHttpRequest",
                             "QUERY_STRING" => ""

      assert_equal [ Mime[:js] ], request.formats

      request = stub_request "HTTP_ACCEPT" => "application/xml",
                             "HTTP_X_REQUESTED_WITH" => "XMLHttpRequest",
                             "QUERY_STRING" => "format=json"

      assert_equal [ Mime[:json] ], request.formats
    ensure
      ActionDispatch::Request.ignore_accept_header = old_ignore_accept_header
    end
  end

  test "format taken from the path extension" do
    request = stub_request "PATH_INFO" => "/foo.xml", "QUERY_STRING" => ""

    assert_equal [Mime[:xml]], request.formats

    request = stub_request "PATH_INFO" => "/foo.123", "QUERY_STRING" => ""

    assert_equal [Mime[:html]], request.formats
  end

  test "formats from accept headers have higher precedence than path extension" do
    request = stub_request "HTTP_ACCEPT" => "application/json",
                           "PATH_INFO" => "/foo.xml",
                           "QUERY_STRING" => ""

    assert_equal [Mime[:json]], request.formats
  end
end

class RequestMimeType < BaseRequestTest
  test "content type" do
    assert_equal Mime[:html], stub_request("CONTENT_TYPE" => "text/html").content_mime_type
  end

  test "no content type" do
    assert_nil stub_request.content_mime_type
  end

  test "content type is XML" do
    assert_equal Mime[:xml], stub_request("CONTENT_TYPE" => "application/xml").content_mime_type
  end

  test "content type with charset" do
    assert_equal Mime[:xml], stub_request("CONTENT_TYPE" => "application/xml; charset=UTF-8").content_mime_type
  end

  test "user agent" do
    assert_equal "TestAgent", stub_request("HTTP_USER_AGENT" => "TestAgent").user_agent
  end

  test "negotiate_mime" do
    request = stub_request(
      "HTTP_ACCEPT" => "text/html",
      "HTTP_X_REQUESTED_WITH" => "XMLHttpRequest"
    )

    assert_nil request.negotiate_mime([Mime[:xml], Mime[:json]])
    assert_equal Mime[:html], request.negotiate_mime([Mime[:xml], Mime[:html]])
    assert_equal Mime[:html], request.negotiate_mime([Mime[:xml], Mime::ALL])
  end

  test "negotiate_mime with content_type" do
    request = stub_request(
      "CONTENT_TYPE" => "application/xml; charset=UTF-8",
      "HTTP_X_REQUESTED_WITH" => "XMLHttpRequest"
    )

    assert_equal Mime[:xml], request.negotiate_mime([Mime[:xml], Mime[:csv]])
  end
end

class RequestParameters < BaseRequestTest
  test "parameters" do
    request = stub_request "CONTENT_TYPE" => "application/json",
                           "CONTENT_LENGTH" => 9,
                           "RAW_POST_DATA" => '{"foo":1}',
                           "QUERY_STRING" => "bar=2"

    assert_equal({ "foo" => 1, "bar" => "2" }, request.parameters)
    assert_equal({ "foo" => 1 }, request.request_parameters)
    assert_equal({ "bar" => "2" }, request.query_parameters)
  end

  test "parameters not accessible after rack parse error" do
    request = stub_request("QUERY_STRING" => "x[y]=1&x[y][][w]=2")

    2.times do
      assert_raises(ActionController::BadRequest) do
        # rack will raise a Rack::Utils::ParameterTypeError when parsing this query string
        request.parameters
      end
    end
  end

  test "path parameters with invalid UTF8 encoding" do
    request = stub_request

    err = assert_raises(ActionController::BadRequest) do
      request.path_parameters = { foo: "\xBE" }
    end

    assert_predicate err.message, :valid_encoding?
    assert_equal "Invalid path parameters: Invalid encoding for parameter: �", err.message
  end

  test "parameters not accessible after rack parse error of invalid UTF8 character" do
    request = stub_request("QUERY_STRING" => "foo%81E=1")
    assert_raises(ActionController::BadRequest) { request.parameters }
  end

  test "parameters containing an invalid UTF8 character" do
    request = stub_request("QUERY_STRING" => "foo=%81E")
    assert_raises(ActionController::BadRequest) { request.parameters }
  end

  test "parameters containing a deeply nested invalid UTF8 character" do
    request = stub_request("QUERY_STRING" => "foo[bar]=%81E")
    assert_raises(ActionController::BadRequest) { request.parameters }
  end

  test "POST parameters containing invalid UTF8 character" do
    data = "foo=%81E"
    request = stub_request(
      "REQUEST_METHOD" => "POST",
      "CONTENT_LENGTH" => data.length,
      "CONTENT_TYPE" => "application/x-www-form-urlencoded; charset=utf-8",
      "rack.input" => StringIO.new(data)
    )

    err = assert_raises(ActionController::BadRequest) { request.parameters }

    assert_predicate err.message, :valid_encoding?
    assert_equal "Invalid request parameters: Invalid encoding for parameter: �E", err.message
  end

  test "query parameters specified as ASCII_8BIT encoded do not raise InvalidParameterError" do
    request = stub_request("QUERY_STRING" => "foo=%81E")

    ActionDispatch::Request::Utils.stub(:set_binary_encoding, { "foo" => "\x81E".b }) do
      request.parameters
    end
  end

  test "POST parameters specified as ASCII_8BIT encoded do not raise InvalidParameterError" do
    data = "foo=%81E"
    request = stub_request(
      "REQUEST_METHOD" => "POST",
      "CONTENT_LENGTH" => data.length,
      "CONTENT_TYPE" => "application/x-www-form-urlencoded; charset=utf-8",
      "rack.input" => StringIO.new(data)
    )

    ActionDispatch::Request::Utils.stub(:set_binary_encoding, { "foo" => "\x81E".b }) do
      request.parameters
    end
  end

  test "parameters not accessible after rack parse error 1" do
    request = stub_request(
      "REQUEST_METHOD" => "POST",
      "CONTENT_LENGTH" => "a%=".length,
      "CONTENT_TYPE" => "application/x-www-form-urlencoded; charset=utf-8",
      "rack.input" => StringIO.new("a%=")
    )

    assert_raises(ActionController::BadRequest) do
      # rack will raise a Rack::Utils::ParameterTypeError when parsing this query string
      request.parameters
    end
  end

  test "we have access to the original exception" do
    request = stub_request("QUERY_STRING" => "x[y]=1&x[y][][w]=2")

    e = assert_raises(ActionController::BadRequest) do
      # rack will raise a Rack::Utils::ParameterTypeError when parsing this query string
      request.parameters
    end

    assert_not_nil e.cause
    assert_equal e.cause.backtrace, e.backtrace
  end
end

class RequestParameterFilter < BaseRequestTest
  test "parameter filter is deprecated" do
    assert_deprecated do
      ActionDispatch::Http::ParameterFilter.new(["blah"])
    end
  end

  test "filtered_parameters returns params filtered" do
    request = stub_request(
      "action_dispatch.request.parameters" => {
        "lifo" => "Pratik",
        "amount" => "420",
        "step" => "1"
      },
      "action_dispatch.parameter_filter" => [:lifo, :amount]
    )

    params = request.filtered_parameters
    assert_equal "[FILTERED]", params["lifo"]
    assert_equal "[FILTERED]", params["amount"]
    assert_equal "1", params["step"]
  end

  test "filtered_env filters env as a whole" do
    request = stub_request(
      "action_dispatch.request.parameters" => {
        "amount" => "420",
        "step" => "1"
      },
      "RAW_POST_DATA" => "yada yada",
      "action_dispatch.parameter_filter" => [:lifo, :amount]
    )
    request = stub_request(request.filtered_env)

    assert_equal "[FILTERED]", request.raw_post
    assert_equal "[FILTERED]", request.params["amount"]
    assert_equal "1", request.params["step"]
  end

  test "filtered_path returns path with filtered query string" do
    %w(; &).each do |sep|
      request = stub_request(
        "QUERY_STRING" => %w(username=sikachu secret=bd4f21f api_key=b1bc3b3cd352f68d79d7).join(sep),
        "PATH_INFO" => "/authenticate",
        "action_dispatch.parameter_filter" => [:secret, :api_key]
      )

      path = request.filtered_path
      assert_equal %w(/authenticate?username=sikachu secret=[FILTERED] api_key=[FILTERED]).join(sep), path
    end
  end

  test "filtered_path should not unescape a genuine '[FILTERED]' value" do
    request = stub_request(
      "QUERY_STRING" => "secret=bd4f21f&genuine=%5BFILTERED%5D",
      "PATH_INFO" => "/authenticate",
      "action_dispatch.parameter_filter" => [:secret]
    )

    path = request.filtered_path
    assert_equal request.script_name + "/authenticate?secret=[FILTERED]&genuine=%5BFILTERED%5D", path
  end

  test "filtered_path should preserve duplication of keys in query string" do
    request = stub_request(
      "QUERY_STRING" => "username=sikachu&secret=bd4f21f&username=fxn",
      "PATH_INFO" => "/authenticate",
      "action_dispatch.parameter_filter" => [:secret]
    )

    path = request.filtered_path
    assert_equal request.script_name + "/authenticate?username=sikachu&secret=[FILTERED]&username=fxn", path
  end

  test "filtered_path should ignore searchparts" do
    request = stub_request(
      "QUERY_STRING" => "secret",
      "PATH_INFO" => "/authenticate",
      "action_dispatch.parameter_filter" => [:secret]
    )

    path = request.filtered_path
    assert_equal request.script_name + "/authenticate?secret", path
  end
end

class RequestEtag < BaseRequestTest
  test "always matches *" do
    request = stub_request("HTTP_IF_NONE_MATCH" => "*")

    assert_equal "*", request.if_none_match
    assert_equal ["*"], request.if_none_match_etags

    assert request.etag_matches?('"strong"')
    assert request.etag_matches?('W/"weak"')
    assert_not request.etag_matches?(nil)
  end

  test "doesn't match absent If-None-Match" do
    request = stub_request

    assert_nil request.if_none_match
    assert_equal [], request.if_none_match_etags

    assert_not request.etag_matches?("foo")
    assert_not request.etag_matches?(nil)
  end

  test "matches opaque ETag validators without unquoting" do
    header = '"the-etag"'
    request = stub_request("HTTP_IF_NONE_MATCH" => header)

    assert_equal header, request.if_none_match
    assert_equal ['"the-etag"'], request.if_none_match_etags

    assert request.etag_matches?('"the-etag"')
    assert_not request.etag_matches?("the-etag")
  end

  test "if_none_match_etags multiple" do
    header = 'etag1, etag2, "third etag", "etag4"'
    expected = ["etag1", "etag2", '"third etag"', '"etag4"']
    request = stub_request("HTTP_IF_NONE_MATCH" => header)

    assert_equal header, request.if_none_match
    assert_equal expected, request.if_none_match_etags
    expected.each do |etag|
      assert request.etag_matches?(etag), etag
    end
  end
end

class RequestVariant < BaseRequestTest
  def setup
    super
    @request = stub_request
  end

  test "setting variant to a symbol" do
    @request.variant = :phone

    assert_predicate @request.variant, :phone?
    assert_not_predicate @request.variant, :tablet?
    assert @request.variant.any?(:phone, :tablet)
    assert_not @request.variant.any?(:tablet, :desktop)
  end

  test "setting variant to an array of symbols" do
    @request.variant = [:phone, :tablet]

    assert_predicate @request.variant, :phone?
    assert_predicate @request.variant, :tablet?
    assert_not_predicate @request.variant, :desktop?
    assert @request.variant.any?(:tablet, :desktop)
    assert_not @request.variant.any?(:desktop, :watch)
  end

  test "clearing variant" do
    @request.variant = nil

    assert_empty @request.variant
    assert_not_predicate @request.variant, :phone?
    assert_not @request.variant.any?(:phone, :tablet)
  end

  test "setting variant to a non-symbol value" do
    assert_raise ArgumentError do
      @request.variant = "phone"
    end
  end

  test "setting variant to an array containing a non-symbol value" do
    assert_raise ArgumentError do
      @request.variant = [:phone, "tablet"]
    end
  end
end

class RequestFormData < BaseRequestTest
  test "media_type is from the FORM_DATA_MEDIA_TYPES array" do
    assert_predicate stub_request("CONTENT_TYPE" => "application/x-www-form-urlencoded"), :form_data?
    assert_predicate stub_request("CONTENT_TYPE" => "multipart/form-data"), :form_data?
  end

  test "media_type is not from the FORM_DATA_MEDIA_TYPES array" do
    assert_not_predicate stub_request("CONTENT_TYPE" => "application/xml"), :form_data?
    assert_not_predicate stub_request("CONTENT_TYPE" => "multipart/related"), :form_data?
  end

  test "no Content-Type header is provided and the request_method is POST" do
    request = stub_request("REQUEST_METHOD" => "POST")

    assert_equal "", request.media_type
    assert_equal "POST", request.request_method
    assert_not_predicate request, :form_data?
  end
end

class EarlyHintsRequestTest < BaseRequestTest
  def setup
    super
    @env["rack.early_hints"] = lambda { |links| links }
    @request = stub_request
  end

  test "when early hints is set in the env link headers are sent" do
    early_hints = @request.send_early_hints("Link" => "</style.css>; rel=preload; as=style\n</script.js>; rel=preload")
    expected_hints = { "Link" => "</style.css>; rel=preload; as=style\n</script.js>; rel=preload" }

    assert_equal expected_hints, early_hints
  end
end

class RequestInspectTest < BaseRequestTest
  test "inspect" do
    request = stub_request(
      "REQUEST_METHOD" => "POST",
      "REMOTE_ADDR" => "1.2.3.4",
      "HTTP_X_FORWARDED_PROTO" => "https",
      "HTTP_X_FORWARDED_HOST" => "example.com:443",
      "PATH_INFO" => "/path/",
      "QUERY_STRING" => "q=1"
    )
    assert_match %r(#<ActionDispatch::Request POST "https://example.com/path/\?q=1" for 1.2.3.4>), request.inspect
  end
end