164 lines
3.3 KiB
Go
164 lines
3.3 KiB
Go
// Copyright 2023 The casbin Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package util
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import (
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"encoding/base64"
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"errors"
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"fmt"
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"io/ioutil"
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"math/rand"
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"strconv"
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"strings"
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"time"
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"github.com/google/uuid"
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)
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func IndexAt(s, sep string, n int) int {
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idx := strings.Index(s[n:], sep)
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if idx > -1 {
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idx += n
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}
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return idx
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}
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func ParseInt(s string) int {
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i, err := strconv.Atoi(s)
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if err != nil {
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panic(err)
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}
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return i
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}
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func ParseIntWithError(s string) (int, error) {
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i, err := strconv.Atoi(s)
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if err != nil {
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return -1, err
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}
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if i < 0 {
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return -1, errors.New("negative version number")
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}
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return i, nil
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}
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func ParseFloat(s string) float64 {
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f, err := strconv.ParseFloat(s, 64)
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if err != nil {
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panic(err)
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}
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return f
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}
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func GetOwnerAndNameFromId(id string) (string, string) {
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tokens := strings.Split(id, "/")
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if len(tokens) != 2 {
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panic(errors.New("GetOwnerAndNameFromId() error, wrong token count for ID: " + id))
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}
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return tokens[0], tokens[1]
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}
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func GetOwnerAndNameFromId3(id string) (string, string, string) {
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tokens := strings.Split(id, "/")
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if len(tokens) != 3 {
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panic(errors.New("GetOwnerAndNameFromId3() error, wrong token count for ID: " + id))
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}
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return tokens[0], fmt.Sprintf("%s/%s", tokens[0], tokens[1]), tokens[2]
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}
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func GetOwnerAndNameFromId3New(id string) (string, string, string) {
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tokens := strings.Split(id, "/")
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if len(tokens) != 3 {
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panic(errors.New("GetOwnerAndNameFromId3New() error, wrong token count for ID: " + id))
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}
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return tokens[0], tokens[1], tokens[2]
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}
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func GetNameFromIdNoCheck(id string) string {
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tokens := strings.Split(id, "/")
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return tokens[len(tokens)-1]
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}
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func GetIdFromOwnerAndName(owner string, name string) string {
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return fmt.Sprintf("%s/%s", owner, name)
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}
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func GenerateId() string {
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return uuid.NewString()
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}
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func ReadStringFromPath(path string) string {
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data, err := ioutil.ReadFile(path)
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if err != nil {
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panic(err)
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}
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return string(data)
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}
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func WriteStringToPath(s string, path string) {
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err := ioutil.WriteFile(path, []byte(s), 0o644)
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if err != nil {
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panic(err)
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}
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}
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func ReadBytesFromPath(path string) []byte {
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data, err := ioutil.ReadFile(path)
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if err != nil {
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panic(err)
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}
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return data
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}
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func WriteBytesToPath(b []byte, path string) {
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err := ioutil.WriteFile(path, b, 0o644)
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if err != nil {
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panic(err)
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}
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}
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func DecodeBase64(s string) string {
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res, err := base64.StdEncoding.DecodeString(s)
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if err != nil {
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panic(err)
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}
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return string(res)
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}
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func GetRandomName() string {
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rand.Seed(time.Now().UnixNano())
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const charset = "0123456789abcdefghijklmnopqrstuvwxyz"
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result := make([]byte, 6)
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for i := range result {
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result[i] = charset[rand.Intn(len(charset))]
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}
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return string(result)
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}
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func GetId(owner, name string) string {
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return fmt.Sprintf("%s/%s", owner, name)
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}
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