2017-01-25 03:43:02 +01:00
|
|
|
// Copyright 2017 The Gitea Authors. All rights reserved.
|
|
|
|
// Use of this source code is governed by a MIT-style
|
|
|
|
// license that can be found in the LICENSE file.
|
|
|
|
|
|
|
|
package util
|
|
|
|
|
2018-02-20 13:50:42 +01:00
|
|
|
import (
|
2019-11-13 03:27:11 +01:00
|
|
|
"bytes"
|
2021-05-10 08:45:17 +02:00
|
|
|
"crypto/rand"
|
2020-11-25 12:20:40 +01:00
|
|
|
"errors"
|
2021-05-10 08:45:17 +02:00
|
|
|
"math/big"
|
2021-10-12 20:11:35 +02:00
|
|
|
"strconv"
|
2018-05-29 05:51:42 +02:00
|
|
|
"strings"
|
2018-02-20 13:50:42 +01:00
|
|
|
)
|
|
|
|
|
2017-01-25 03:43:02 +01:00
|
|
|
// OptionalBool a boolean that can be "null"
|
|
|
|
type OptionalBool byte
|
|
|
|
|
|
|
|
const (
|
|
|
|
// OptionalBoolNone a "null" boolean value
|
2021-10-12 20:11:35 +02:00
|
|
|
OptionalBoolNone OptionalBool = iota
|
2017-01-25 03:43:02 +01:00
|
|
|
// OptionalBoolTrue a "true" boolean value
|
|
|
|
OptionalBoolTrue
|
|
|
|
// OptionalBoolFalse a "false" boolean value
|
|
|
|
OptionalBoolFalse
|
|
|
|
)
|
|
|
|
|
2017-10-24 19:36:19 +02:00
|
|
|
// IsTrue return true if equal to OptionalBoolTrue
|
|
|
|
func (o OptionalBool) IsTrue() bool {
|
|
|
|
return o == OptionalBoolTrue
|
|
|
|
}
|
|
|
|
|
|
|
|
// IsFalse return true if equal to OptionalBoolFalse
|
|
|
|
func (o OptionalBool) IsFalse() bool {
|
|
|
|
return o == OptionalBoolFalse
|
|
|
|
}
|
|
|
|
|
|
|
|
// IsNone return true if equal to OptionalBoolNone
|
|
|
|
func (o OptionalBool) IsNone() bool {
|
|
|
|
return o == OptionalBoolNone
|
|
|
|
}
|
|
|
|
|
2017-01-25 03:43:02 +01:00
|
|
|
// OptionalBoolOf get the corresponding OptionalBool of a bool
|
|
|
|
func OptionalBoolOf(b bool) OptionalBool {
|
|
|
|
if b {
|
|
|
|
return OptionalBoolTrue
|
|
|
|
}
|
|
|
|
return OptionalBoolFalse
|
|
|
|
}
|
2017-10-27 08:10:54 +02:00
|
|
|
|
2021-10-12 20:11:35 +02:00
|
|
|
// OptionalBoolParse get the corresponding OptionalBool of a string using strconv.ParseBool
|
|
|
|
func OptionalBoolParse(s string) OptionalBool {
|
|
|
|
b, e := strconv.ParseBool(s)
|
|
|
|
if e != nil {
|
|
|
|
return OptionalBoolNone
|
|
|
|
}
|
|
|
|
return OptionalBoolOf(b)
|
|
|
|
}
|
|
|
|
|
2017-10-27 08:10:54 +02:00
|
|
|
// Max max of two ints
|
|
|
|
func Max(a, b int) int {
|
|
|
|
if a < b {
|
|
|
|
return b
|
|
|
|
}
|
|
|
|
return a
|
|
|
|
}
|
|
|
|
|
|
|
|
// Min min of two ints
|
|
|
|
func Min(a, b int) int {
|
|
|
|
if a > b {
|
|
|
|
return b
|
|
|
|
}
|
|
|
|
return a
|
|
|
|
}
|
2019-01-21 12:45:32 +01:00
|
|
|
|
|
|
|
// IsEmptyString checks if the provided string is empty
|
|
|
|
func IsEmptyString(s string) bool {
|
|
|
|
return len(strings.TrimSpace(s)) == 0
|
|
|
|
}
|
2019-11-13 03:27:11 +01:00
|
|
|
|
|
|
|
// NormalizeEOL will convert Windows (CRLF) and Mac (CR) EOLs to UNIX (LF)
|
|
|
|
func NormalizeEOL(input []byte) []byte {
|
|
|
|
var right, left, pos int
|
|
|
|
if right = bytes.IndexByte(input, '\r'); right == -1 {
|
|
|
|
return input
|
|
|
|
}
|
|
|
|
length := len(input)
|
|
|
|
tmp := make([]byte, length)
|
|
|
|
|
|
|
|
// We know that left < length because otherwise right would be -1 from IndexByte.
|
|
|
|
copy(tmp[pos:pos+right], input[left:left+right])
|
|
|
|
pos += right
|
|
|
|
tmp[pos] = '\n'
|
|
|
|
left += right + 1
|
|
|
|
pos++
|
|
|
|
|
|
|
|
for left < length {
|
|
|
|
if input[left] == '\n' {
|
|
|
|
left++
|
|
|
|
}
|
|
|
|
|
|
|
|
right = bytes.IndexByte(input[left:], '\r')
|
|
|
|
if right == -1 {
|
|
|
|
copy(tmp[pos:], input[left:])
|
|
|
|
pos += length - left
|
|
|
|
break
|
|
|
|
}
|
|
|
|
copy(tmp[pos:pos+right], input[left:left+right])
|
|
|
|
pos += right
|
|
|
|
tmp[pos] = '\n'
|
|
|
|
left += right + 1
|
|
|
|
pos++
|
|
|
|
}
|
|
|
|
return tmp[:pos]
|
|
|
|
}
|
2020-11-25 12:20:40 +01:00
|
|
|
|
|
|
|
// MergeInto merges pairs of values into a "dict"
|
|
|
|
func MergeInto(dict map[string]interface{}, values ...interface{}) (map[string]interface{}, error) {
|
|
|
|
for i := 0; i < len(values); i++ {
|
|
|
|
switch key := values[i].(type) {
|
|
|
|
case string:
|
|
|
|
i++
|
|
|
|
if i == len(values) {
|
|
|
|
return nil, errors.New("specify the key for non array values")
|
|
|
|
}
|
|
|
|
dict[key] = values[i]
|
|
|
|
case map[string]interface{}:
|
|
|
|
m := values[i].(map[string]interface{})
|
|
|
|
for i, v := range m {
|
|
|
|
dict[i] = v
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
return nil, errors.New("dict values must be maps")
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return dict, nil
|
|
|
|
}
|
2021-05-10 08:45:17 +02:00
|
|
|
|
2022-01-26 05:10:10 +01:00
|
|
|
// CryptoRandomInt returns a crypto random integer between 0 and limit, inclusive
|
|
|
|
func CryptoRandomInt(limit int64) (int64, error) {
|
2022-01-04 16:13:52 +01:00
|
|
|
rInt, err := rand.Int(rand.Reader, big.NewInt(limit))
|
2021-05-10 08:45:17 +02:00
|
|
|
if err != nil {
|
|
|
|
return 0, err
|
|
|
|
}
|
2022-01-04 16:13:52 +01:00
|
|
|
return rInt.Int64(), nil
|
2021-05-10 08:45:17 +02:00
|
|
|
}
|
|
|
|
|
2022-01-26 05:10:10 +01:00
|
|
|
const alphanumericalChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
|
2021-05-10 08:45:17 +02:00
|
|
|
|
2022-01-26 05:10:10 +01:00
|
|
|
// CryptoRandomString generates a crypto random alphanumerical string, each byte is generated by [0,61] range
|
|
|
|
func CryptoRandomString(length int64) (string, error) {
|
|
|
|
buf := make([]byte, length)
|
|
|
|
limit := int64(len(alphanumericalChars))
|
|
|
|
for i := range buf {
|
|
|
|
num, err := CryptoRandomInt(limit)
|
2021-05-10 08:45:17 +02:00
|
|
|
if err != nil {
|
|
|
|
return "", err
|
|
|
|
}
|
2022-01-26 05:10:10 +01:00
|
|
|
buf[i] = alphanumericalChars[num]
|
2021-05-10 08:45:17 +02:00
|
|
|
}
|
2022-01-26 05:10:10 +01:00
|
|
|
return string(buf), nil
|
2021-05-10 08:45:17 +02:00
|
|
|
}
|
2022-01-04 16:13:52 +01:00
|
|
|
|
2022-01-26 05:10:10 +01:00
|
|
|
// CryptoRandomBytes generates `length` crypto bytes
|
|
|
|
// This differs from CryptoRandomString, as each byte in CryptoRandomString is generated by [0,61] range
|
|
|
|
// This function generates totally random bytes, each byte is generated by [0,255] range
|
|
|
|
func CryptoRandomBytes(length int64) ([]byte, error) {
|
|
|
|
buf := make([]byte, length)
|
|
|
|
_, err := rand.Read(buf)
|
|
|
|
return buf, err
|
2022-01-04 16:13:52 +01:00
|
|
|
}
|
2022-02-01 13:59:25 +01:00
|
|
|
|
|
|
|
// ToUpperASCII returns s with all ASCII letters mapped to their upper case.
|
|
|
|
func ToUpperASCII(s string) string {
|
|
|
|
b := []byte(s)
|
|
|
|
for i, c := range b {
|
|
|
|
if 'a' <= c && c <= 'z' {
|
|
|
|
b[i] -= 'a' - 'A'
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return string(b)
|
|
|
|
}
|