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Simplify id generation

This commit is contained in:
r 2022-01-02 11:38:06 +00:00
parent c5f12920b0
commit fcb88c8a85
1 changed files with 7 additions and 13 deletions
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20
util/rand.go
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@ -2,24 +2,18 @@ package util
import ( import (
"crypto/rand" "crypto/rand"
"math/big" "encoding/base64"
) )
var ( var enc = base64.URLEncoding
runes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890")
runes_length = len(runes)
)
func NewRandID(n int) (string, error) { func NewRandID(n int) (string, error) {
data := make([]rune, n) data := make([]byte, enc.DecodedLen(n))
for i := range data { _, err := rand.Read(data)
num, err := rand.Int(rand.Reader, big.NewInt(int64(runes_length))) if err != nil {
if err != nil { return "", err
return "", err
}
data[i] = runes[num.Int64()]
} }
return string(data), nil return enc.EncodeToString(data), nil
} }
func NewSessionID() (string, error) { func NewSessionID() (string, error) {