frp/utils/version/version.go

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// Copyright 2016 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.
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package version
import (
"strconv"
"strings"
)
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var version string = "0.28.0"
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func Full() string {
return version
}
func getSubVersion(v string, position int) int64 {
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arr := strings.Split(v, ".")
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if len(arr) < 3 {
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return 0
}
res, _ := strconv.ParseInt(arr[position], 10, 64)
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return res
}
func Proto(v string) int64 {
return getSubVersion(v, 0)
}
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func Major(v string) int64 {
return getSubVersion(v, 1)
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}
func Minor(v string) int64 {
return getSubVersion(v, 2)
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}
// add every case there if server will not accept client's protocol and return false
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func Compat(client string) (ok bool, msg string) {
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if LessThan(client, "0.18.0") {
return false, "Please upgrade your frpc version to at least 0.18.0"
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}
return true, ""
}
func LessThan(client string, server string) bool {
vc := Proto(client)
vs := Proto(server)
if vc > vs {
return false
} else if vc < vs {
return true
}
vc = Major(client)
vs = Major(server)
if vc > vs {
return false
} else if vc < vs {
return true
}
vc = Minor(client)
vs = Minor(server)
if vc > vs {
return false
} else if vc < vs {
return true
}
return false
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}