44 lines
791 B
Go
44 lines
791 B
Go
package utils
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import (
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"encoding/base64"
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"math/rand"
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"strconv"
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"strings"
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)
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var letterRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
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func RandString(length int) string {
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b := make([]rune, length)
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for i := range b {
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b[i] = letterRunes[rand.Intn(len(letterRunes))]
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}
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return string(b)
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}
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func IsInt(str string) bool {
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_, err := strconv.ParseInt(str, 10, 64)
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return err == nil
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}
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func Base64Decode(s string) string {
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b, err := base64.StdEncoding.DecodeString(s)
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if err != nil {
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return ""
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}
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return string(b)
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}
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func Base64Encode(s string) string {
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return base64.StdEncoding.EncodeToString([]byte(s))
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}
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func StringMax(str string, max int, suffix ...string) string {
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if len(str) > max {
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return str[:max] + strings.Join(suffix, "")
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}
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return str
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}
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