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40 lines
772 B
Go
40 lines
772 B
Go
package utils
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import (
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"crypto/rand"
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)
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func GenerateRandomString(length int) string {
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if length <= 0 {
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return ""
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}
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const charset = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
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const n = byte(len(charset)) // 62
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const threshold = byte(256 - (256 % len(charset))) // 248
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out := make([]byte, 0, length)
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buf := make([]byte, length)
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for len(out) < length {
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if _, err := rand.Read(buf); err != nil {
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return ""
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}
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for _, b := range buf {
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if b < threshold {
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out = append(out, charset[int(b%n)])
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if len(out) == length {
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break
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}
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}
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}
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}
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return string(out)
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}
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func GeneratePassword() string {
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return GenerateRandomString(12)
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}
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func GenerateToken() string {
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return GenerateRandomString(22)
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}
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