mirror of https://github.com/fatedier/frp
122 lines
2.3 KiB
Go
122 lines
2.3 KiB
Go
// Copyright 2019 fatedier, fatedier@gmail.com
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package config
|
|
|
|
import (
|
|
"encoding/json"
|
|
"errors"
|
|
"strconv"
|
|
"strings"
|
|
)
|
|
|
|
const (
|
|
MB = 1024 * 1024
|
|
KB = 1024
|
|
)
|
|
|
|
type BandwidthQuantity struct {
|
|
s string // MB or KB
|
|
|
|
i int64 // bytes
|
|
}
|
|
|
|
func NewBandwidthQuantity(s string) (BandwidthQuantity, error) {
|
|
q := BandwidthQuantity{}
|
|
err := q.UnmarshalString(s)
|
|
if err != nil {
|
|
return q, err
|
|
}
|
|
return q, nil
|
|
}
|
|
|
|
func MustBandwidthQuantity(s string) BandwidthQuantity {
|
|
q := BandwidthQuantity{}
|
|
err := q.UnmarshalString(s)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
return q
|
|
}
|
|
|
|
func (q *BandwidthQuantity) Equal(u *BandwidthQuantity) bool {
|
|
if q == nil && u == nil {
|
|
return true
|
|
}
|
|
if q != nil && u != nil {
|
|
return q.i == u.i
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (q *BandwidthQuantity) String() string {
|
|
return q.s
|
|
}
|
|
|
|
func (q *BandwidthQuantity) UnmarshalString(s string) error {
|
|
s = strings.TrimSpace(s)
|
|
if s == "" {
|
|
return nil
|
|
}
|
|
|
|
var (
|
|
base int64
|
|
f float64
|
|
err error
|
|
)
|
|
if strings.HasSuffix(s, "MB") {
|
|
base = MB
|
|
fstr := strings.TrimSuffix(s, "MB")
|
|
f, err = strconv.ParseFloat(fstr, 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
} else if strings.HasSuffix(s, "KB") {
|
|
base = KB
|
|
fstr := strings.TrimSuffix(s, "KB")
|
|
f, err = strconv.ParseFloat(fstr, 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
} else {
|
|
return errors.New("unit not support")
|
|
}
|
|
|
|
q.s = s
|
|
q.i = int64(f * float64(base))
|
|
return nil
|
|
}
|
|
|
|
func (q *BandwidthQuantity) UnmarshalJSON(b []byte) error {
|
|
if len(b) == 4 && string(b) == "null" {
|
|
return nil
|
|
}
|
|
|
|
var str string
|
|
err := json.Unmarshal(b, &str)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return q.UnmarshalString(str)
|
|
}
|
|
|
|
func (q *BandwidthQuantity) MarshalJSON() ([]byte, error) {
|
|
return []byte("\"" + q.s + "\""), nil
|
|
}
|
|
|
|
func (q *BandwidthQuantity) Bytes() int64 {
|
|
return q.i
|
|
}
|