Files
cloudpods/pkg/util/netutils2/compact_ips.go
2023-10-19 09:15:30 +08:00

58 lines
1.7 KiB
Go

// Copyright 2019 Yunion
//
// 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 netutils2
import (
"fmt"
"strconv"
"strings"
"yunion.io/x/pkg/errors"
)
func ExpandCompactIps(ipstr string) ([]string, error) {
ips := make([]string, 0)
ipSegs := strings.Split(strings.TrimSpace(ipstr), ";")
for _, ipSeg := range ipSegs {
parts := strings.Split(ipSeg, ".")
if len(parts) <= 3 {
return nil, errors.Wrap(errors.ErrInvalidFormat, ipSeg)
}
hosts := strings.Split(parts[3], ",")
for _, host := range hosts {
if strings.Index(host, "-") > 0 {
subhosts := strings.Split(host, "-")
if len(subhosts) != 2 {
return nil, errors.Wrap(errors.ErrInvalidFormat, ipSeg)
}
start, err := strconv.Atoi(subhosts[0])
if err != nil {
return nil, errors.Wrap(errors.ErrInvalidFormat, ipSeg)
}
end, err := strconv.Atoi(subhosts[1])
if err != nil {
return nil, errors.Wrap(errors.ErrInvalidFormat, ipSeg)
}
for i := start; i <= end; i++ {
ips = append(ips, fmt.Sprintf("%s.%s.%s.%d", parts[0], parts[1], parts[2], i))
}
} else {
ips = append(ips, fmt.Sprintf("%s.%s.%s.%s", parts[0], parts[1], parts[2], host))
}
}
}
return ips, nil
}