require 'abstract_unit'

class BaseRequestTest < ActiveSupport::TestCase
  def setup
    @env = {
      :ip_spoofing_check => true,
      :tld_length => 1,
      "rack.input" => "foo"
    }
  end

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

  protected
    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)
      tld_length = env.key?(:tld_length) ? env.delete(:tld_length) : 1
      ip_app.call(env)
      ActionDispatch::Http::URL.tld_length = tld_length

      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 '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' => '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 nil, 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_equal nil, 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 nil, 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_equal 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 nil, request.remote_ip

    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 '::1', request.remote_ip

    request = stub_request 'HTTP_X_FORWARDED_FOR' => 'unknown,fe80:0000:0000:0000:0202:b3ff:fe1e:8329'
    assert_equal nil, 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' => '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

    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
  end

  test "subdomains" do
    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

    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
  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 !request.ssl?
    assert request.standard_port?

    request = stub_request 'HTTPS' => 'on'
    assert request.ssl?
    assert request.standard_port?

    request = stub_request 'HTTP_HOST' => 'www.example.org:8080'
    assert !request.ssl?
    assert !request.standard_port?

    request = stub_request 'HTTP_HOST' => 'www.example.org:8443', 'HTTPS' => 'on'
    assert request.ssl?
    assert !request.standard_port?
  end

  test "optional port" do
    request = stub_request 'HTTP_HOST' => 'www.example.org:80'
    assert_equal 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
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 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 "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
  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_equal 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 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

    # some Nokia phone browsers omit the space after the semicolon separator.
    # some developers have grown accustomed to using comma in cookie values.
    request = stub_request("HTTP_COOKIE"=>"_session_id=c84ace847,96670c052c6ceb2451fb0f2;is_admin=yes")
    assert_equal "c84ace847", 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 !request.xml_http_request?
    assert !request.xhr?

    request = stub_request 'HTTP_X_REQUESTED_WITH' => 'DefinitelyNotAjax1.0'
    assert !request.xml_http_request?
    assert !request.xhr?

    request = stub_request 'HTTP_X_REQUESTED_WITH' => 'XMLHttpRequest'
    assert request.xml_http_request?
    assert request.xhr?
  end

  test "reports ssl" do
    assert !stub_request.ssl?
    assert stub_request('HTTPS' => 'on').ssl?
  end

  test "reports ssl when proxied via lighttpd" do
    assert stub_request('HTTP_X_FORWARDED_PROTO' => 'https').ssl?
  end

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

    request = stub_request(
      'rack.url_scheme' => 'http',
      'HTTP_X_FORWARDED_PROTO' => 'https'
    )
    assert 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"]
  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 "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 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 request.put?
  end

  test "post uneffected by local inflections" do
    existing_acrnoyms = ActiveSupport::Inflector.inflections.acronyms.dup
    existing_acrnoym_regex = ActiveSupport::Inflector.inflections.acronym_regex.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 request.post?
    ensure
      # Reset original acronym set
      ActiveSupport::Inflector.inflections do |inflect|
        inflect.send(:instance_variable_set,"@acronyms",existing_acrnoyms)
        inflect.send(:instance_variable_set,"@acronym_regex",existing_acrnoym_regex)
      end
    end
  end
end

class RequestFormat < BaseRequestTest
  test "xml format" do
    request = stub_request
    request.expects(:parameters).at_least_once.returns({ :format => 'xml' })
    assert_equal Mime::XML, request.format
  end

  test "xhtml format" do
    request = stub_request
    request.expects(:parameters).at_least_once.returns({ :format => 'xhtml' })
    assert_equal Mime::HTML, request.format
  end

  test "txt format" do
    request = stub_request
    request.expects(:parameters).at_least_once.returns({ :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", Mime::ALL].join(",")
    )
    request.expects(:parameters).at_least_once.returns({})
    assert request.xhr?
    assert_equal Mime::JS, request.format
  end

  test "can override format with parameter negative" do
    request = stub_request
    request.expects(:parameters).at_least_once.returns({ :format => :txt })
    assert !request.format.xml?
  end

  test "can override format with parameter positive" do
    request = stub_request
    request.expects(:parameters).at_least_once.returns({ :format => :xml })
    assert 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
    request.expects(:parameters).at_least_once.returns({ :format => :txt })
    assert_equal [Mime::TEXT], request.formats
  end

  test "formats format:unknown with accept header" do
    request = stub_request
    request.expects(:parameters).at_least_once.returns({ :format => :unknown })
    assert_instance_of Mime::NullType, request.format
  end

  test "format is not nil with unknown format" do
    request = stub_request
    request.expects(:parameters).at_least_once.returns({ format: :hello })
    assert request.format.nil?
    assert_not request.format.html?
    assert_not request.format.xml?
    assert_not request.format.json?
  end

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

  test "formats with xhr request" do
    request = stub_request 'HTTP_X_REQUESTED_WITH' => "XMLHttpRequest"
    request.expects(:parameters).at_least_once.returns({})
    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'
      request.expects(:parameters).at_least_once.returns({})
      assert_equal [ Mime::HTML ], request.formats

      request = stub_request 'HTTP_ACCEPT' => 'koz-asked/something-crazy'
      request.expects(:parameters).at_least_once.returns({})
      assert_equal [ Mime::HTML ], request.formats

      request = stub_request 'HTTP_ACCEPT' => '*/*;q=0.1'
      request.expects(:parameters).at_least_once.returns({})
      assert_equal [ Mime::HTML ], request.formats

      request = stub_request 'HTTP_ACCEPT' => 'application/jxw'
      request.expects(:parameters).at_least_once.returns({})
      assert_equal [ Mime::HTML ], request.formats

      request = stub_request 'HTTP_ACCEPT' => 'application/xml',
                             'HTTP_X_REQUESTED_WITH' => "XMLHttpRequest"
      request.expects(:parameters).at_least_once.returns({})
      assert_equal [ Mime::JS ], request.formats

      request = stub_request 'HTTP_ACCEPT' => 'application/xml',
                             'HTTP_X_REQUESTED_WITH' => "XMLHttpRequest"
      request.expects(:parameters).at_least_once.returns({:format => :json})
      assert_equal [ Mime::JSON ], request.formats
    ensure
      ActionDispatch::Request.ignore_accept_header = old_ignore_accept_header
    end
  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_equal 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_equal 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
    request.expects(:request_parameters).at_least_once.returns({ "foo" => 1 })
    request.expects(:query_parameters).at_least_once.returns({ "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 TypeError when parsing this query string
        request.parameters
      end
    end
  end

  test "parameters not accessible after rack parse error of invalid UTF8 character" do
    request = stub_request("QUERY_STRING" => "foo%81E=1")

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

    assert e.original_exception
    assert_equal e.original_exception.backtrace, e.backtrace
  end
end


class RequestParameterFilter < BaseRequestTest
  test "process parameter filter" do
    test_hashes = [
    [{'foo'=>'bar'},{'foo'=>'bar'},%w'food'],
    [{'foo'=>'bar'},{'foo'=>'[FILTERED]'},%w'foo'],
    [{'foo'=>'bar', 'bar'=>'foo'},{'foo'=>'[FILTERED]', 'bar'=>'foo'},%w'foo baz'],
    [{'foo'=>'bar', 'baz'=>'foo'},{'foo'=>'[FILTERED]', 'baz'=>'[FILTERED]'},%w'foo baz'],
    [{'bar'=>{'foo'=>'bar','bar'=>'foo'}},{'bar'=>{'foo'=>'[FILTERED]','bar'=>'foo'}},%w'fo'],
    [{'foo'=>{'foo'=>'bar','bar'=>'foo'}},{'foo'=>'[FILTERED]'},%w'f banana'],
    [{'baz'=>[{'foo'=>'baz'}, "1"]}, {'baz'=>[{'foo'=>'[FILTERED]'}, "1"]}, [/foo/]]]

    test_hashes.each do |before_filter, after_filter, filter_words|
      parameter_filter = ActionDispatch::Http::ParameterFilter.new(filter_words)
      assert_equal after_filter, parameter_filter.filter(before_filter)

      filter_words << 'blah'
      filter_words << lambda { |key, value|
        value.reverse! if key =~ /bargain/
      }

      parameter_filter = ActionDispatch::Http::ParameterFilter.new(filter_words)
      before_filter['barg'] = {'bargain'=>'gain', 'blah'=>'bar', 'bar'=>{'bargain'=>{'blah'=>'foo'}}}
      after_filter['barg']  = {'bargain'=>'niag', 'blah'=>'[FILTERED]', 'bar'=>{'bargain'=>{'blah'=>'[FILTERED]'}}}

      assert_equal after_filter, parameter_filter.filter(before_filter)
    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 "if_none_match_etags none" do
    request = stub_request

    assert_equal nil, request.if_none_match
    assert_equal [], request.if_none_match_etags
    assert !request.etag_matches?("foo")
    assert !request.etag_matches?(nil)
  end

  test "if_none_match_etags single" do
    header = 'the-etag'
    request = stub_request('HTTP_IF_NONE_MATCH' => header)

    assert_equal header, request.if_none_match
    assert_equal [header], request.if_none_match_etags
    assert request.etag_matches?("the-etag")
  end

  test "if_none_match_etags quoted single" 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")
  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
  test "setting variant" do
    request = stub_request

    request.variant = :mobile
    assert_equal [:mobile], request.variant

    request.variant = [:phone, :tablet]
    assert_equal [:phone, :tablet], request.variant

    assert_raise ArgumentError do
      request.variant = [:phone, "tablet"]
    end

    assert_raise ArgumentError do
      request.variant = "yolo"
    end
  end

  test "setting variant with non symbol value" do
    request = stub_request
    assert_raise ArgumentError do
      request.variant = "mobile"
    end
  end
end