49 lines
898 B
Go
49 lines
898 B
Go
package util
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import (
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"crypto/rand"
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"encoding/binary"
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"strconv"
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"time"
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uuid "github.com/satori/go.uuid"
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)
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func RandomToken(size uint) string {
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if size > 10 || size < 1 {
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log.Fatalf("size out of range: %d", size)
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}
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result := make([]byte, 0, 14)
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b := make([]byte, 8)
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if _, err := rand.Read(b); err != nil {
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log.Fatal(err)
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}
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randomInt := binary.BigEndian.Uint64(b)
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result = append(result, strconv.FormatUint(randomInt, 36)...)
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for i := len(result); i < cap(result); i++ {
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result = append(result, byte(123-(cap(result)-i)))
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}
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return string(result[:size])
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}
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func RandomPassword() string {
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return RandomToken(8)
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}
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func ID() string {
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result := make([]byte, 0, 16)
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result = append(result, strconv.FormatInt(time.Now().UTC().Unix(), 36)[0:6]...)
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result = append(result, RandomToken(10)...)
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return string(result)
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}
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func UUID() string {
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return uuid.NewV4().String()
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}
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