2015-05-05 08:45:01 +08:00
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package websocket
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import (
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"crypto/rand"
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"crypto/sha1"
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"encoding/base64"
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"errors"
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"io"
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)
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var keyGUID = []byte("258EAFA5-E914-47DA-95CA-C5AB0DC85B11")
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func calcAcceptKey(key string) string {
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h := sha1.New()
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h.Write([]byte(key))
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h.Write(keyGUID)
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return base64.StdEncoding.EncodeToString(h.Sum(nil))
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}
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func calcKey() (string, error) {
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p := make([]byte, 16)
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if _, err := io.ReadFull(rand.Reader, p); err != nil {
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return "", err
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}
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return base64.StdEncoding.EncodeToString(p), nil
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}
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func HandleCloseFrame(buf []byte) (int16, string, error) {
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if len(buf) < 2 {
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return 0, "", errors.New("close frame msg's length less than 2")
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}
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code := int16(buf[0])<<8 + int16(buf[1])
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reason := string(buf[2:])
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return code, reason, nil
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}
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