1 files changed, 0 insertions, 694 deletions
diff --git a/src/pkg/websocket/hixie.go b/src/pkg/websocket/hixie.go
deleted file mode 100644
index b755a5c6a..000000000
--- a/src/pkg/websocket/hixie.go
+++ /dev/null
@@ -1,694 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package websocket
-
-// This file implements a protocol of Hixie draft version 75 and 76
-// (draft 76 equals to hybi 00)
-
-import (
-	"bufio"
-	"bytes"
-	"container/vector"
-	"crypto/md5"
-	"encoding/binary"
-	"fmt"
-	"http"
-	"io"
-	"io/ioutil"
-	"os"
-	"rand"
-	"strconv"
-	"strings"
-	"url"
-)
-
-// An aray of characters to be randomly inserted to construct Sec-WebSocket-Key
-// value. It holds characters from ranges U+0021 to U+002F and U+003A to U+007E.
-// See Step 21 in Section 4.1 Opening handshake.
-// http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-00#page-22
-var secKeyRandomChars [0x30 - 0x21 + 0x7F - 0x3A]byte
-
-func init() {
-	i := 0
-	for ch := byte(0x21); ch < 0x30; ch++ {
-		secKeyRandomChars[i] = ch
-		i++
-	}
-	for ch := byte(0x3a); ch < 0x7F; ch++ {
-		secKeyRandomChars[i] = ch
-		i++
-	}
-}
-
-type byteReader interface {
-	ReadByte() (byte, os.Error)
-}
-
-// readHixieLength reads frame length for frame type 0x80-0xFF
-// as defined in Hixie draft.
-// See section 4.2 Data framing.
-// http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-00#section-4.2
-func readHixieLength(r byteReader) (length int64, lengthFields []byte, err os.Error) {
-	for {
-		c, err := r.ReadByte()
-		if err != nil {
-			return 0, nil, err
-		}
-		lengthFields = append(lengthFields, c)
-		length = length*128 + int64(c&0x7f)
-		if c&0x80 == 0 {
-			break
-		}
-	}
-	return
-}
-
-// A hixieLengthFrameReader is a reader for frame type 0x80-0xFF
-// as defined in hixie draft.
-type hixieLengthFrameReader struct {
-	reader    io.Reader
-	FrameType byte
-	Length    int64
-	header    *bytes.Buffer
-	length    int
-}
-
-func (frame *hixieLengthFrameReader) Read(msg []byte) (n int, err os.Error) {
-	return frame.reader.Read(msg)
-}
-
-func (frame *hixieLengthFrameReader) PayloadType() byte {
-	if frame.FrameType == '\xff' && frame.Length == 0 {
-		return CloseFrame
-	}
-	return UnknownFrame
-}
-
-func (frame *hixieLengthFrameReader) HeaderReader() io.Reader {
-	if frame.header == nil {
-		return nil
-	}
-	if frame.header.Len() == 0 {
-		frame.header = nil
-		return nil
-	}
-	return frame.header
-}
-
-func (frame *hixieLengthFrameReader) TrailerReader() io.Reader { return nil }
-
-func (frame *hixieLengthFrameReader) Len() (n int) { return frame.length }
-
-// A HixieSentinelFrameReader is a reader for frame type 0x00-0x7F
-// as defined in hixie draft.
-type hixieSentinelFrameReader struct {
-	reader      *bufio.Reader
-	FrameType   byte
-	header      *bytes.Buffer
-	data        []byte
-	seenTrailer bool
-	trailer     *bytes.Buffer
-}
-
-func (frame *hixieSentinelFrameReader) Read(msg []byte) (n int, err os.Error) {
-	if len(frame.data) == 0 {
-		if frame.seenTrailer {
-			return 0, os.EOF
-		}
-		frame.data, err = frame.reader.ReadSlice('\xff')
-		if err == nil {
-			frame.seenTrailer = true
-			frame.data = frame.data[:len(frame.data)-1] // trim \xff
-			frame.trailer = bytes.NewBuffer([]byte{0xff})
-		}
-	}
-	n = copy(msg, frame.data)
-	frame.data = frame.data[n:]
-	return n, err
-}
-
-func (frame *hixieSentinelFrameReader) PayloadType() byte {
-	if frame.FrameType == 0 {
-		return TextFrame
-	}
-	return UnknownFrame
-}
-
-func (frame *hixieSentinelFrameReader) HeaderReader() io.Reader {
-	if frame.header == nil {
-		return nil
-	}
-	if frame.header.Len() == 0 {
-		frame.header = nil
-		return nil
-	}
-	return frame.header
-}
-
-func (frame *hixieSentinelFrameReader) TrailerReader() io.Reader {
-	if frame.trailer == nil {
-		return nil
-	}
-	if frame.trailer.Len() == 0 {
-		frame.trailer = nil
-		return nil
-	}
-	return frame.trailer
-}
-
-func (frame *hixieSentinelFrameReader) Len() int { return -1 }
-
-// A HixieFrameReaderFactory creates new frame reader based on its frame type.
-type hixieFrameReaderFactory struct {
-	*bufio.Reader
-}
-
-func (buf hixieFrameReaderFactory) NewFrameReader() (r frameReader, err os.Error) {
-	var header []byte
-	var b byte
-	b, err = buf.ReadByte()
-	if err != nil {
-		return
-	}
-	header = append(header, b)
-	if b&0x80 == 0x80 {
-		length, lengthFields, err := readHixieLength(buf.Reader)
-		if err != nil {
-			return nil, err
-		}
-		if length == 0 {
-			return nil, os.EOF
-		}
-		header = append(header, lengthFields...)
-		return &hixieLengthFrameReader{
-			reader:    io.LimitReader(buf.Reader, length),
-			FrameType: b,
-			Length:    length,
-			header:    bytes.NewBuffer(header)}, err
-	}
-	return &hixieSentinelFrameReader{
-		reader:    buf.Reader,
-		FrameType: b,
-		header:    bytes.NewBuffer(header)}, err
-}
-
-type hixiFrameWriter struct {
-	writer *bufio.Writer
-}
-
-func (frame *hixiFrameWriter) Write(msg []byte) (n int, err os.Error) {
-	frame.writer.WriteByte(0)
-	frame.writer.Write(msg)
-	frame.writer.WriteByte(0xff)
-	err = frame.writer.Flush()
-	return len(msg), err
-}
-
-func (frame *hixiFrameWriter) Close() os.Error { return nil }
-
-type hixiFrameWriterFactory struct {
-	*bufio.Writer
-}
-
-func (buf hixiFrameWriterFactory) NewFrameWriter(payloadType byte) (frame frameWriter, err os.Error) {
-	if payloadType != TextFrame {
-		return nil, ErrNotSupported
-	}
-	return &hixiFrameWriter{writer: buf.Writer}, nil
-}
-
-type hixiFrameHandler struct {
-	conn *Conn
-}
-
-func (handler *hixiFrameHandler) HandleFrame(frame frameReader) (r frameReader, err os.Error) {
-	if header := frame.HeaderReader(); header != nil {
-		io.Copy(ioutil.Discard, header)
-	}
-	if frame.PayloadType() != TextFrame {
-		io.Copy(ioutil.Discard, frame)
-		return nil, nil
-	}
-	return frame, nil
-}
-
-func (handler *hixiFrameHandler) WriteClose(_ int) (err os.Error) {
-	closingFrame := []byte{'\xff', '\x00'}
-	handler.conn.buf.Write(closingFrame)
-	return handler.conn.buf.Flush()
-}
-
-// newHixiConn creates a new WebSocket connection speaking hixie draft protocol.
-func newHixieConn(config *Config, buf *bufio.ReadWriter, rwc io.ReadWriteCloser, request *http.Request) *Conn {
-	if buf == nil {
-		br := bufio.NewReader(rwc)
-		bw := bufio.NewWriter(rwc)
-		buf = bufio.NewReadWriter(br, bw)
-	}
-	ws := &Conn{config: config, request: request, buf: buf, rwc: rwc,
-		frameReaderFactory: hixieFrameReaderFactory{buf.Reader},
-		frameWriterFactory: hixiFrameWriterFactory{buf.Writer},
-		PayloadType:        TextFrame}
-	ws.frameHandler = &hixiFrameHandler{ws}
-	return ws
-}
-
-// getChallengeResponse computes the expected response from the
-// challenge as described in section 5.1 Opening Handshake steps 42 to
-// 43 of http://www.whatwg.org/specs/web-socket-protocol/
-func getChallengeResponse(number1, number2 uint32, key3 []byte) (expected []byte, err os.Error) {
-	// 41. Let /challenge/ be the concatenation of /number_1/, expressed
-	// a big-endian 32 bit integer, /number_2/, expressed in a big-
-	// endian 32 bit integer, and the eight bytes of /key_3/ in the
-	// order they were sent to the wire.
-	challenge := make([]byte, 16)
-	binary.BigEndian.PutUint32(challenge[0:], number1)
-	binary.BigEndian.PutUint32(challenge[4:], number2)
-	copy(challenge[8:], key3)
-
-	// 42. Let /expected/ be the MD5 fingerprint of /challenge/ as a big-
-	// endian 128 bit string.
-	h := md5.New()
-	if _, err = h.Write(challenge); err != nil {
-		return
-	}
-	expected = h.Sum()
-	return
-}
-
-// Generates handshake key as described in 4.1 Opening handshake step 16 to 22.
-// cf. http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-00
-func generateKeyNumber() (key string, number uint32) {
-	// 16.  Let /spaces_n/ be a random integer from 1 to 12 inclusive.
-	spaces := rand.Intn(12) + 1
-
-	// 17. Let /max_n/ be the largest integer not greater than
-	//     4,294,967,295 divided by /spaces_n/
-	max := int(4294967295 / uint32(spaces))
-
-	// 18. Let /number_n/ be a random integer from 0 to /max_n/ inclusive.
-	number = uint32(rand.Intn(max + 1))
-
-	// 19. Let /product_n/ be the result of multiplying /number_n/ and
-	//     /spaces_n/ together.
-	product := number * uint32(spaces)
-
-	// 20. Let /key_n/ be a string consisting of /product_n/, expressed
-	// in base ten using the numerals in the range U+0030 DIGIT ZERO (0)
-	// to U+0039 DIGIT NINE (9).
-	key = fmt.Sprintf("%d", product)
-
-	// 21. Insert between one and twelve random characters from the ranges
-	//     U+0021 to U+002F and U+003A to U+007E into /key_n/ at random
-	//     positions.
-	n := rand.Intn(12) + 1
-	for i := 0; i < n; i++ {
-		pos := rand.Intn(len(key)) + 1
-		ch := secKeyRandomChars[rand.Intn(len(secKeyRandomChars))]
-		key = key[0:pos] + string(ch) + key[pos:]
-	}
-
-	// 22. Insert /spaces_n/ U+0020 SPACE characters into /key_n/ at random
-	//     positions other than the start or end of the string.
-	for i := 0; i < spaces; i++ {
-		pos := rand.Intn(len(key)-1) + 1
-		key = key[0:pos] + " " + key[pos:]
-	}
-
-	return
-}
-
-// Generates handshake key_3 as described in 4.1 Opening handshake step 26.
-// cf. http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-00
-func generateKey3() (key []byte) {
-	// 26. Let /key3/ be a string consisting of eight random bytes (or
-	//  equivalently, a random 64 bit integer encoded in big-endian order).
-	key = make([]byte, 8)
-	for i := 0; i < 8; i++ {
-		key[i] = byte(rand.Intn(256))
-	}
-	return
-}
-
-// Cilent handhake described in (soon obsolete)
-// draft-ietf-hybi-thewebsocket-protocol-00
-// (draft-hixie-thewebsocket-protocol-76) 
-func hixie76ClientHandshake(config *Config, br *bufio.Reader, bw *bufio.Writer) (err os.Error) {
-	switch config.Version {
-	case ProtocolVersionHixie76, ProtocolVersionHybi00:
-	default:
-		panic("wrong protocol version.")
-	}
-	// 4.1. Opening handshake.
-	// Step 5.  send a request line.
-	bw.WriteString("GET " + config.Location.RawPath + " HTTP/1.1\r\n")
-
-	// Step 6-14. push request headers in fields.
-	var fields vector.StringVector
-	fields.Push("Upgrade: WebSocket\r\n")
-	fields.Push("Connection: Upgrade\r\n")
-	fields.Push("Host: " + config.Location.Host + "\r\n")
-	fields.Push("Origin: " + config.Origin.String() + "\r\n")
-	if len(config.Protocol) > 0 {
-		if len(config.Protocol) != 1 {
-			return ErrBadWebSocketProtocol
-		}
-		fields.Push("Sec-WebSocket-Protocol: " + config.Protocol[0] + "\r\n")
-	}
-	// TODO(ukai): Step 15. send cookie if any.
-
-	// Step 16-23. generate keys and push Sec-WebSocket-Key<n> in fields.
-	key1, number1 := generateKeyNumber()
-	key2, number2 := generateKeyNumber()
-	if config.handshakeData != nil {
-		key1 = config.handshakeData["key1"]
-		n, err := strconv.Atoui(config.handshakeData["number1"])
-		if err != nil {
-			panic(err)
-		}
-		number1 = uint32(n)
-		key2 = config.handshakeData["key2"]
-		n, err = strconv.Atoui(config.handshakeData["number2"])
-		if err != nil {
-			panic(err)
-		}
-		number2 = uint32(n)
-	}
-	fields.Push("Sec-WebSocket-Key1: " + key1 + "\r\n")
-	fields.Push("Sec-WebSocket-Key2: " + key2 + "\r\n")
-
-	// Step 24. shuffle fields and send them out.
-	for i := 1; i < len(fields); i++ {
-		j := rand.Intn(i)
-		fields[i], fields[j] = fields[j], fields[i]
-	}
-	for i := 0; i < len(fields); i++ {
-		bw.WriteString(fields[i])
-	}
-	// Step 25. send CRLF.
-	bw.WriteString("\r\n")
-
-	// Step 26. generate 8 bytes random key.
-	key3 := generateKey3()
-	if config.handshakeData != nil {
-		key3 = []byte(config.handshakeData["key3"])
-	}
-	// Step 27. send it out.
-	bw.Write(key3)
-	if err = bw.Flush(); err != nil {
-		return
-	}
-
-	// Step 28-29, 32-40. read response from server.
-	resp, err := http.ReadResponse(br, &http.Request{Method: "GET"})
-	if err != nil {
-		return err
-	}
-	// Step 30. check response code is 101.
-	if resp.StatusCode != 101 {
-		return ErrBadStatus
-	}
-
-	// Step 41. check websocket headers.
-	if resp.Header.Get("Upgrade") != "WebSocket" ||
-		strings.ToLower(resp.Header.Get("Connection")) != "upgrade" {
-		return ErrBadUpgrade
-	}
-
-	if resp.Header.Get("Sec-Websocket-Origin") != config.Origin.String() {
-		return ErrBadWebSocketOrigin
-	}
-
-	if resp.Header.Get("Sec-Websocket-Location") != config.Location.String() {
-		return ErrBadWebSocketLocation
-	}
-
-	if len(config.Protocol) > 0 && resp.Header.Get("Sec-Websocket-Protocol") != config.Protocol[0] {
-		return ErrBadWebSocketProtocol
-	}
-
-	// Step 42-43. get expected data from challenge data.
-	expected, err := getChallengeResponse(number1, number2, key3)
-	if err != nil {
-		return err
-	}
-
-	// Step 44. read 16 bytes from server.
-	reply := make([]byte, 16)
-	if _, err = io.ReadFull(br, reply); err != nil {
-		return err
-	}
-
-	// Step 45. check the reply equals to expected data.
-	if !bytes.Equal(expected, reply) {
-		return ErrChallengeResponse
-	}
-	// WebSocket connection is established.
-	return
-}
-
-// Client Handshake described in (soon obsolete)
-// draft-hixie-thewebsocket-protocol-75.
-func hixie75ClientHandshake(config *Config, br *bufio.Reader, bw *bufio.Writer) (err os.Error) {
-	if config.Version != ProtocolVersionHixie75 {
-		panic("wrong protocol version.")
-	}
-	bw.WriteString("GET " + config.Location.RawPath + " HTTP/1.1\r\n")
-	bw.WriteString("Upgrade: WebSocket\r\n")
-	bw.WriteString("Connection: Upgrade\r\n")
-	bw.WriteString("Host: " + config.Location.Host + "\r\n")
-	bw.WriteString("Origin: " + config.Origin.String() + "\r\n")
-	if len(config.Protocol) > 0 {
-		if len(config.Protocol) != 1 {
-			return ErrBadWebSocketProtocol
-		}
-		bw.WriteString("WebSocket-Protocol: " + config.Protocol[0] + "\r\n")
-	}
-	bw.WriteString("\r\n")
-	bw.Flush()
-	resp, err := http.ReadResponse(br, &http.Request{Method: "GET"})
-	if err != nil {
-		return
-	}
-	if resp.Status != "101 Web Socket Protocol Handshake" {
-		return ErrBadStatus
-	}
-	if resp.Header.Get("Upgrade") != "WebSocket" ||
-		resp.Header.Get("Connection") != "Upgrade" {
-		return ErrBadUpgrade
-	}
-	if resp.Header.Get("Websocket-Origin") != config.Origin.String() {
-		return ErrBadWebSocketOrigin
-	}
-	if resp.Header.Get("Websocket-Location") != config.Location.String() {
-		return ErrBadWebSocketLocation
-	}
-	if len(config.Protocol) > 0 && resp.Header.Get("Websocket-Protocol") != config.Protocol[0] {
-		return ErrBadWebSocketProtocol
-	}
-	return
-}
-
-// newHixieClientConn returns new WebSocket connection speaking hixie draft protocol.
-func newHixieClientConn(config *Config, buf *bufio.ReadWriter, rwc io.ReadWriteCloser) *Conn {
-	return newHixieConn(config, buf, rwc, nil)
-}
-
-// Gets key number from Sec-WebSocket-Key<n>: field as described
-// in 5.2 Sending the server's opening handshake, 4.
-func getKeyNumber(s string) (r uint32) {
-	// 4. Let /key-number_n/ be the digits (characters in the range
-	// U+0030 DIGIT ZERO (0) to U+0039 DIGIT NINE (9)) in /key_1/,
-	// interpreted as a base ten integer, ignoring all other characters
-	// in /key_n/.
-	r = 0
-	for i := 0; i < len(s); i++ {
-		if s[i] >= '0' && s[i] <= '9' {
-			r = r*10 + uint32(s[i]) - '0'
-		}
-	}
-	return
-}
-
-// A Hixie76ServerHandshaker performs a server handshake using
-// hixie draft 76 protocol.
-type hixie76ServerHandshaker struct {
-	*Config
-	challengeResponse []byte
-}
-
-func (c *hixie76ServerHandshaker) ReadHandshake(buf *bufio.Reader, req *http.Request) (code int, err os.Error) {
-	c.Version = ProtocolVersionHybi00
-	if req.Method != "GET" {
-		return http.StatusMethodNotAllowed, ErrBadRequestMethod
-	}
-	// HTTP version can be safely ignored.
-
-	if strings.ToLower(req.Header.Get("Upgrade")) != "websocket" ||
-		strings.ToLower(req.Header.Get("Connection")) != "upgrade" {
-		return http.StatusBadRequest, ErrNotWebSocket
-	}
-
-	// TODO(ukai): check Host
-	c.Origin, err = url.ParseRequest(req.Header.Get("Origin"))
-	if err != nil {
-		return http.StatusBadRequest, err
-	}
-
-	key1 := req.Header.Get("Sec-Websocket-Key1")
-	if key1 == "" {
-		return http.StatusBadRequest, ErrChallengeResponse
-	}
-	key2 := req.Header.Get("Sec-Websocket-Key2")
-	if key2 == "" {
-		return http.StatusBadRequest, ErrChallengeResponse
-	}
-	key3 := make([]byte, 8)
-	if _, err := io.ReadFull(buf, key3); err != nil {
-		return http.StatusBadRequest, ErrChallengeResponse
-	}
-
-	var scheme string
-	if req.TLS != nil {
-		scheme = "wss"
-	} else {
-		scheme = "ws"
-	}
-	c.Location, err = url.ParseRequest(scheme + "://" + req.Host + req.URL.RawPath)
-	if err != nil {
-		return http.StatusBadRequest, err
-	}
-
-	// Step 4. get key number in Sec-WebSocket-Key<n> fields.
-	keyNumber1 := getKeyNumber(key1)
-	keyNumber2 := getKeyNumber(key2)
-
-	// Step 5. get number of spaces in Sec-WebSocket-Key<n> fields.
-	space1 := uint32(strings.Count(key1, " "))
-	space2 := uint32(strings.Count(key2, " "))
-	if space1 == 0 || space2 == 0 {
-		return http.StatusBadRequest, ErrChallengeResponse
-	}
-
-	// Step 6. key number must be an integral multiple of spaces.
-	if keyNumber1%space1 != 0 || keyNumber2%space2 != 0 {
-		return http.StatusBadRequest, ErrChallengeResponse
-	}
-
-	// Step 7. let part be key number divided by spaces.
-	part1 := keyNumber1 / space1
-	part2 := keyNumber2 / space2
-
-	// Step 8. let challenge be concatenation of part1, part2 and key3.
-	// Step 9. get MD5 fingerprint of challenge.
-	c.challengeResponse, err = getChallengeResponse(part1, part2, key3)
-	if err != nil {
-		return http.StatusInternalServerError, err
-	}
-	protocol := strings.TrimSpace(req.Header.Get("Sec-Websocket-Protocol"))
-	protocols := strings.Split(protocol, ",")
-	for i := 0; i < len(protocols); i++ {
-		c.Protocol = append(c.Protocol, strings.TrimSpace(protocols[i]))
-	}
-
-	return http.StatusSwitchingProtocols, nil
-}
-
-func (c *hixie76ServerHandshaker) AcceptHandshake(buf *bufio.Writer) (err os.Error) {
-	if len(c.Protocol) > 0 {
-		if len(c.Protocol) != 1 {
-			return ErrBadWebSocketProtocol
-		}
-	}
-
-	// Step 10. send response status line.
-	buf.WriteString("HTTP/1.1 101 WebSocket Protocol Handshake\r\n")
-	// Step 11. send response headers.
-	buf.WriteString("Upgrade: WebSocket\r\n")
-	buf.WriteString("Connection: Upgrade\r\n")
-	buf.WriteString("Sec-WebSocket-Origin: " + c.Origin.String() + "\r\n")
-	buf.WriteString("Sec-WebSocket-Location: " + c.Location.String() + "\r\n")
-	if len(c.Protocol) > 0 {
-		buf.WriteString("Sec-WebSocket-Protocol: " + c.Protocol[0] + "\r\n")
-	}
-	// Step 12. send CRLF.
-	buf.WriteString("\r\n")
-	// Step 13. send response data.
-	buf.Write(c.challengeResponse)
-	return buf.Flush()
-}
-
-func (c *hixie76ServerHandshaker) NewServerConn(buf *bufio.ReadWriter, rwc io.ReadWriteCloser, request *http.Request) (conn *Conn) {
-	return newHixieServerConn(c.Config, buf, rwc, request)
-}
-
-// A hixie75ServerHandshaker performs a server handshake using
-// hixie draft 75 protocol.
-type hixie75ServerHandshaker struct {
-	*Config
-}
-
-func (c *hixie75ServerHandshaker) ReadHandshake(buf *bufio.Reader, req *http.Request) (code int, err os.Error) {
-	c.Version = ProtocolVersionHixie75
-	if req.Method != "GET" || req.Proto != "HTTP/1.1" {
-		return http.StatusMethodNotAllowed, ErrBadRequestMethod
-	}
-	if req.Header.Get("Upgrade") != "WebSocket" {
-		return http.StatusBadRequest, ErrNotWebSocket
-	}
-	if req.Header.Get("Connection") != "Upgrade" {
-		return http.StatusBadRequest, ErrNotWebSocket
-	}
-	c.Origin, err = url.ParseRequest(strings.TrimSpace(req.Header.Get("Origin")))
-	if err != nil {
-		return http.StatusBadRequest, err
-	}
-
-	var scheme string
-	if req.TLS != nil {
-		scheme = "wss"
-	} else {
-		scheme = "ws"
-	}
-	c.Location, err = url.ParseRequest(scheme + "://" + req.Host + req.URL.RawPath)
-	if err != nil {
-		return http.StatusBadRequest, err
-	}
-	protocol := strings.TrimSpace(req.Header.Get("Websocket-Protocol"))
-	protocols := strings.Split(protocol, ",")
-	for i := 0; i < len(protocols); i++ {
-		c.Protocol = append(c.Protocol, strings.TrimSpace(protocols[i]))
-	}
-
-	return http.StatusSwitchingProtocols, nil
-}
-
-func (c *hixie75ServerHandshaker) AcceptHandshake(buf *bufio.Writer) (err os.Error) {
-	if len(c.Protocol) > 0 {
-		if len(c.Protocol) != 1 {
-			return ErrBadWebSocketProtocol
-		}
-	}
-
-	buf.WriteString("HTTP/1.1 101 Web Socket Protocol Handshake\r\n")
-	buf.WriteString("Upgrade: WebSocket\r\n")
-	buf.WriteString("Connection: Upgrade\r\n")
-	buf.WriteString("WebSocket-Origin: " + c.Origin.String() + "\r\n")
-	buf.WriteString("WebSocket-Location: " + c.Location.String() + "\r\n")
-	if len(c.Protocol) > 0 {
-		buf.WriteString("WebSocket-Protocol: " + c.Protocol[0] + "\r\n")
-	}
-	buf.WriteString("\r\n")
-	return buf.Flush()
-}
-
-func (c *hixie75ServerHandshaker) NewServerConn(buf *bufio.ReadWriter, rwc io.ReadWriteCloser, request *http.Request) (conn *Conn) {
-	return newHixieServerConn(c.Config, buf, rwc, request)
-}
-
-// newHixieServerConn returns a new WebSocket connection speaking hixie draft protocol.
-func newHixieServerConn(config *Config, buf *bufio.ReadWriter, rwc io.ReadWriteCloser, request *http.Request) *Conn {
-	return newHixieConn(config, buf, rwc, request)
-}