mirror of
https://github.com/ZeroDream-CN/SakuraFrp
synced 2024-11-22 23:52:19 +00:00
45 lines
1.2 KiB
Go
45 lines
1.2 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 net
|
||
|
|
|
||
|
|
import (
|
||
|
|
"crypto/tls"
|
||
|
|
"net"
|
||
|
|
|
||
|
|
gnet "github.com/fatedier/golib/net"
|
||
|
|
)
|
||
|
|
|
||
|
|
var (
|
||
|
|
FRP_TLS_HEAD_BYTE = 0x17
|
||
|
|
)
|
||
|
|
|
||
|
|
func WrapTLSClientConn(c net.Conn, tlsConfig *tls.Config) (out Conn) {
|
||
|
|
c.Write([]byte{byte(FRP_TLS_HEAD_BYTE)})
|
||
|
|
out = WrapConn(tls.Client(c, tlsConfig))
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
func CheckAndEnableTLSServerConn(c net.Conn, tlsConfig *tls.Config) (out Conn) {
|
||
|
|
sc, r := gnet.NewSharedConnSize(c, 1)
|
||
|
|
buf := make([]byte, 1)
|
||
|
|
n, _ := r.Read(buf)
|
||
|
|
if n == 1 && int(buf[0]) == FRP_TLS_HEAD_BYTE {
|
||
|
|
out = WrapConn(tls.Server(c, tlsConfig))
|
||
|
|
} else {
|
||
|
|
out = WrapConn(sc)
|
||
|
|
}
|
||
|
|
return
|
||
|
|
}
|