mirror of
https://github.com/screego/server.git
synced 2026-04-22 23:47:03 +08:00
Jannis Mattheis
30 lines
584 B
Go
30 lines
584 B
Go
package util
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import (
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"crypto/rand"
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"math/big"
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)
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func RandString(length int) string {
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res := make([]byte, length)
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for i := range res {
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index := randIntn(len(tokenCharacters))
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res[i] = tokenCharacters[index]
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}
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return string(res)
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}
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var (
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tokenCharacters = []byte("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_!@#$%^&*()){}\\/=+,.><")
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randReader = rand.Reader
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)
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func randIntn(n int) int {
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max := big.NewInt(int64(n))
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res, err := rand.Int(randReader, max)
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if err != nil {
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panic("random source is not available")
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}
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return int(res.Int64())
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}
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