require "rbconfig"
require 'test/unit'
require 'socket'
require 'openssl'

require 'puma/minissl'
require 'puma/server'

require 'net/https'

class TestPumaServer < Test::Unit::TestCase

  def setup
    @port = 3212
    @host = "127.0.0.1"

    @app = lambda { |env| [200, {}, [env['rack.url_scheme']]] }

    @events = Puma::Events.new STDOUT, STDERR
    @server = Puma::Server.new @app, @events

    if defined?(JRUBY_VERSION)
      @ssl_key =  File.expand_path "../../examples/puma/keystore.jks", __FILE__
      @ssl_cert = @ssl_key
    else
      @ssl_key =  File.expand_path "../../examples/puma/puma_keypair.pem", __FILE__
      @ssl_cert = File.expand_path "../../examples/puma/cert_puma.pem", __FILE__
    end
  end

  def teardown
    @server.stop(true)
  end

  def test_url_scheme_for_https
    ctx = Puma::MiniSSL::Context.new

    ctx.key = @ssl_key
    ctx.cert = @ssl_cert

    ctx.verify_mode = Puma::MiniSSL::VERIFY_NONE

    @server.add_ssl_listener @host, @port, ctx
    @server.run

    http = Net::HTTP.new @host, @port
    http.use_ssl = true
    http.verify_mode = OpenSSL::SSL::VERIFY_NONE

    body = nil
    http.start do
      req = Net::HTTP::Get.new "/", {}

      http.request(req) do |rep|
        body = rep.body
      end
    end

    assert_equal "https", body
  end unless defined? JRUBY_VERSION

  def test_proper_stringio_body
    data = nil

    @server.app = proc do |env|
      data = env['rack.input'].read
      [200, {}, ["ok"]]
    end

    @server.add_tcp_listener @host, @port
    @server.run

    fifteen = "1" * 15

    sock = TCPSocket.new @host, @port
    sock << "PUT / HTTP/1.0\r\nContent-Length: 30\r\n\r\n#{fifteen}"
    sleep 0.1 # important so that the previous data is sent as a packet
    sock << fifteen

    sock.read

    assert_equal "#{fifteen}#{fifteen}", data
  end

  def test_puma_socket
    body = "HTTP/1.1 750 Upgraded to Awesome\r\nDone: Yep!\r\n"
    @server.app = proc do |env|
      io = env['puma.socket']

      io.write body

      io.close

      [-1, {}, []]
    end

    @server.add_tcp_listener @host, @port
    @server.run

    sock = TCPSocket.new @host, @port
    sock << "PUT / HTTP/1.0\r\n\r\nHello"

    assert_equal body, sock.read
  end

  def test_very_large_return
    giant = "x" * 2056610

    @server.app = proc do |env|
      [200, {}, [giant]]
    end

    @server.add_tcp_listener @host, @port
    @server.run

    sock = TCPSocket.new @host, @port
    sock << "GET / HTTP/1.0\r\n\r\n"

    while true
      line = sock.gets
      break if line == "\r\n"
    end

    out = sock.read

    assert_equal giant.bytesize, out.bytesize
  end

  def test_respect_x_forwarded_proto
    @server.app = proc do |env|
      [200, {}, [env['SERVER_PORT']]]
    end

    @server.add_tcp_listener @host, @port
    @server.run

    req = Net::HTTP::Get.new("/")
    req['HOST'] = "example.com"
    req['X_FORWARDED_PROTO'] = "https"

    res = Net::HTTP.start @host, @port do |http|
      http.request(req)
    end

    assert_equal "443", res.body
  end

  def test_default_server_port
    @server.app = proc do |env|
      [200, {}, [env['SERVER_PORT']]]
    end

    @server.add_tcp_listener @host, @port
    @server.run

    req = Net::HTTP::Get.new("/")
    req['HOST'] = "example.com"

    res = Net::HTTP.start @host, @port do |http|
      http.request(req)
    end

    assert_equal "80", res.body
  end

  def test_HEAD_has_no_body
    @server.app = proc { |env| [200, {"Foo" => "Bar"}, ["hello"]] }

    @server.add_tcp_listener @host, @port
    @server.run

    sock = TCPSocket.new @host, @port
    sock << "HEAD / HTTP/1.0\r\n\r\n"

    data = sock.read

    assert_equal "HTTP/1.0 200 OK\r\nFoo: Bar\r\nContent-Length: 5\r\n\r\n", data
  end

  def test_GET_with_empty_body_has_sane_chunking
    @server.app = proc { |env| [200, {}, [""]] }

    @server.add_tcp_listener @host, @port
    @server.run

    sock = TCPSocket.new @host, @port
    sock << "HEAD / HTTP/1.0\r\n\r\n"

    data = sock.read

    assert_equal "HTTP/1.0 200 OK\r\nContent-Length: 0\r\n\r\n", data
  end

  def test_GET_with_no_body_has_sane_chunking
    @server.app = proc { |env| [200, {}, []] }

    @server.add_tcp_listener @host, @port
    @server.run

    sock = TCPSocket.new @host, @port
    sock << "HEAD / HTTP/1.0\r\n\r\n"

    data = sock.read

    assert_equal "HTTP/1.0 200 OK\r\n\r\n", data
  end

  def test_doesnt_print_backtrace_in_production
    @events = Puma::Events.strings
    @server = Puma::Server.new @app, @events

    @server.app = proc { |e| raise "don't leak me bro" }
    @server.leak_stack_on_error = false
    @server.add_tcp_listener @host, @port
    @server.run

    sock = TCPSocket.new @host, @port
    sock << "GET / HTTP/1.0\r\n\r\n"

    data = sock.read

    assert_not_match(/don't leak me bro/, data)
  end

  def test_custom_http_codes_10
    @server.app = proc { |env| [449, {}, [""]] }

    @server.add_tcp_listener @host, @port
    @server.run

    sock = TCPSocket.new @host, @port

    sock << "GET / HTTP/1.0\r\n\r\n"

    data = sock.read

    assert_equal "HTTP/1.0 449 CUSTOM\r\nConnection: close\r\nContent-Length: 0\r\n\r\n", data
  end

  def test_custom_http_codes_11
    @server.app = proc { |env| [449, {}, [""]] }

    @server.add_tcp_listener @host, @port
    @server.run

    sock = TCPSocket.new @host, @port
    sock << "GET / HTTP/1.1\r\n\r\n"

    data = sock.read

    assert_equal "HTTP/1.1 449 CUSTOM\r\nContent-Length: 0\r\n\r\n", data
  end

  def test_HEAD_returns_content_headers
    @server.app = proc { |env| [200, {"Content-Type" => "application/pdf",
                                      "Content-Length" => "4242"}, []] }

    @server.add_tcp_listener @host, @port
    @server.run

    sock = TCPSocket.new @host, @port

    sock << "HEAD / HTTP/1.0\r\n\r\n"

    data = sock.read

    assert_equal "HTTP/1.0 200 OK\r\nContent-Type: application/pdf\r\nContent-Length: 4242\r\n\r\n", data
  end

  def test_status_hook_fires_when_server_changes_states

    states = []

    @events.register(:state) { |s| states << s }

    @server.app = proc { |env| [200, {}, [""]] }

    @server.add_tcp_listener @host, @port
    @server.run

    sock = TCPSocket.new @host, @port
    sock << "HEAD / HTTP/1.0\r\n\r\n"

    sock.read

    assert_equal [:booting, :running], states

    @server.stop(true)

    assert_equal [:booting, :running, :stop, :done], states
  end
end