34 lines
712 B
Go
34 lines
712 B
Go
package auth
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import (
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"crypto/rand"
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"strings"
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)
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const codeCharset = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789"
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// GenerateCode génère un code de 16 caractères alphanumériques,
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// regroupés par 4 et séparés par des tirets (ex: "A3F9-K2M7-XQ4R-8ZT1").
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func GenerateCode() (string, error) {
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const length = 16
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const groupSize = 4
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b := make([]byte, length)
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if _, err := rand.Read(b); err != nil {
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return "", err
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}
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var sb strings.Builder
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for i := 0; i < length; i++ {
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if i > 0 && i%groupSize == 0 {
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sb.WriteByte('-')
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}
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sb.WriteByte(codeCharset[int(b[i])%len(codeCharset)])
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}
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return sb.String(), nil
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}
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func NormalizeUsername(u string) string {
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return strings.ToLower(strings.TrimSpace(u))
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}
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