34 lines
731 B
Go
34 lines
731 B
Go
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package utils
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import (
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"crypto/sha1"
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"encoding/hex"
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"github.com/gofrs/uuid"
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)
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// UUIDMap https://github.com/XTLS/Xray-core/issues/158#issue-783294090
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func UUIDMap(str string) (uuid.UUID, error) {
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u, err := uuid.FromString(str)
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if err != nil {
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var Nil [16]byte
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h := sha1.New()
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h.Write(Nil[:])
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h.Write([]byte(str))
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u := h.Sum(nil)[:16]
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u[6] = (u[6] & 0x0f) | (5 << 4)
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u[8] = u[8]&(0xff>>2) | (0x02 << 6)
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buf := make([]byte, 36)
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hex.Encode(buf[0:8], u[0:4])
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buf[8] = '-'
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hex.Encode(buf[9:13], u[4:6])
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buf[13] = '-'
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hex.Encode(buf[14:18], u[6:8])
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buf[18] = '-'
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hex.Encode(buf[19:23], u[8:10])
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buf[23] = '-'
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hex.Encode(buf[24:], u[10:])
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return uuid.FromString(string(buf))
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}
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return u, nil
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}
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