frp/server/proxy/sudp.go

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// 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 proxy
import (
"reflect"
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"github.com/fatedier/frp/pkg/config"
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)
func init() {
RegisterProxyFactory(reflect.TypeOf(&config.SUDPProxyConf{}), NewSUDPProxy)
}
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type SUDPProxy struct {
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*BaseProxy
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cfg *config.SUDPProxyConf
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}
func NewSUDPProxy(baseProxy *BaseProxy, cfg config.ProxyConf) Proxy {
unwrapped, ok := cfg.(*config.SUDPProxyConf)
if !ok {
return nil
}
return &SUDPProxy{
BaseProxy: baseProxy,
cfg: unwrapped,
}
}
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func (pxy *SUDPProxy) Run() (remoteAddr string, err error) {
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xl := pxy.xl
allowUsers := pxy.cfg.AllowUsers
// if allowUsers is empty, only allow same user from proxy
if len(allowUsers) == 0 {
allowUsers = []string{pxy.GetUserInfo().User}
}
listener, errRet := pxy.rc.VisitorManager.Listen(pxy.GetName(), pxy.cfg.Sk, allowUsers)
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if errRet != nil {
err = errRet
return
}
pxy.listeners = append(pxy.listeners, listener)
xl.Info("sudp proxy custom listen success")
pxy.startCommonTCPListenersHandler()
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return
}
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func (pxy *SUDPProxy) GetConf() config.ProxyConf {
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return pxy.cfg
}
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func (pxy *SUDPProxy) Close() {
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pxy.BaseProxy.Close()
pxy.rc.VisitorManager.CloseListener(pxy.GetName())
}