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fatedier
455
client/proxy/proxy.go
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455
client/proxy/proxy.go
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@@ -0,0 +1,455 @@
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// Copyright 2017 fatedier, fatedier@gmail.com
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package proxy
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import (
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"bytes"
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"fmt"
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"io"
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"net"
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"sync"
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"time"
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"github.com/fatedier/frp/g"
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"github.com/fatedier/frp/models/config"
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"github.com/fatedier/frp/models/msg"
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"github.com/fatedier/frp/models/plugin"
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"github.com/fatedier/frp/models/proto/udp"
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"github.com/fatedier/frp/utils/log"
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frpNet "github.com/fatedier/frp/utils/net"
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"github.com/fatedier/golib/errors"
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frpIo "github.com/fatedier/golib/io"
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"github.com/fatedier/golib/pool"
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)
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// Proxy defines how to handle work connections for different proxy type.
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type Proxy interface {
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Run() error
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// InWorkConn accept work connections registered to server.
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InWorkConn(conn frpNet.Conn)
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Close()
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log.Logger
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}
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func NewProxy(pxyConf config.ProxyConf) (pxy Proxy) {
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baseProxy := BaseProxy{
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Logger: log.NewPrefixLogger(pxyConf.GetBaseInfo().ProxyName),
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}
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switch cfg := pxyConf.(type) {
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case *config.TcpProxyConf:
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pxy = &TcpProxy{
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BaseProxy: baseProxy,
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cfg: cfg,
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}
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case *config.UdpProxyConf:
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pxy = &UdpProxy{
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BaseProxy: baseProxy,
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cfg: cfg,
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}
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case *config.HttpProxyConf:
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pxy = &HttpProxy{
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BaseProxy: baseProxy,
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cfg: cfg,
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}
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case *config.HttpsProxyConf:
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pxy = &HttpsProxy{
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BaseProxy: baseProxy,
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cfg: cfg,
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}
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case *config.StcpProxyConf:
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pxy = &StcpProxy{
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BaseProxy: baseProxy,
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cfg: cfg,
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}
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case *config.XtcpProxyConf:
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pxy = &XtcpProxy{
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BaseProxy: baseProxy,
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cfg: cfg,
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}
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}
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return
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}
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type BaseProxy struct {
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closed bool
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mu sync.RWMutex
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log.Logger
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}
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// TCP
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type TcpProxy struct {
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BaseProxy
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cfg *config.TcpProxyConf
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proxyPlugin plugin.Plugin
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}
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func (pxy *TcpProxy) Run() (err error) {
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if pxy.cfg.Plugin != "" {
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pxy.proxyPlugin, err = plugin.Create(pxy.cfg.Plugin, pxy.cfg.PluginParams)
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if err != nil {
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return
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}
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}
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return
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}
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func (pxy *TcpProxy) Close() {
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if pxy.proxyPlugin != nil {
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pxy.proxyPlugin.Close()
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}
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}
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func (pxy *TcpProxy) InWorkConn(conn frpNet.Conn) {
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HandleTcpWorkConnection(&pxy.cfg.LocalSvrConf, pxy.proxyPlugin, &pxy.cfg.BaseProxyConf, conn,
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[]byte(g.GlbClientCfg.Token))
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}
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// HTTP
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type HttpProxy struct {
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BaseProxy
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cfg *config.HttpProxyConf
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proxyPlugin plugin.Plugin
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}
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func (pxy *HttpProxy) Run() (err error) {
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if pxy.cfg.Plugin != "" {
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pxy.proxyPlugin, err = plugin.Create(pxy.cfg.Plugin, pxy.cfg.PluginParams)
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if err != nil {
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return
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}
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}
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return
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}
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func (pxy *HttpProxy) Close() {
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if pxy.proxyPlugin != nil {
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pxy.proxyPlugin.Close()
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}
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}
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func (pxy *HttpProxy) InWorkConn(conn frpNet.Conn) {
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HandleTcpWorkConnection(&pxy.cfg.LocalSvrConf, pxy.proxyPlugin, &pxy.cfg.BaseProxyConf, conn,
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[]byte(g.GlbClientCfg.Token))
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}
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// HTTPS
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type HttpsProxy struct {
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BaseProxy
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cfg *config.HttpsProxyConf
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proxyPlugin plugin.Plugin
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}
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func (pxy *HttpsProxy) Run() (err error) {
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if pxy.cfg.Plugin != "" {
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pxy.proxyPlugin, err = plugin.Create(pxy.cfg.Plugin, pxy.cfg.PluginParams)
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if err != nil {
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return
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}
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}
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return
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}
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func (pxy *HttpsProxy) Close() {
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if pxy.proxyPlugin != nil {
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pxy.proxyPlugin.Close()
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}
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}
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func (pxy *HttpsProxy) InWorkConn(conn frpNet.Conn) {
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HandleTcpWorkConnection(&pxy.cfg.LocalSvrConf, pxy.proxyPlugin, &pxy.cfg.BaseProxyConf, conn,
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[]byte(g.GlbClientCfg.Token))
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}
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// STCP
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type StcpProxy struct {
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BaseProxy
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cfg *config.StcpProxyConf
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proxyPlugin plugin.Plugin
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}
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func (pxy *StcpProxy) Run() (err error) {
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if pxy.cfg.Plugin != "" {
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pxy.proxyPlugin, err = plugin.Create(pxy.cfg.Plugin, pxy.cfg.PluginParams)
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if err != nil {
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return
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}
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}
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return
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}
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func (pxy *StcpProxy) Close() {
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if pxy.proxyPlugin != nil {
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pxy.proxyPlugin.Close()
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}
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}
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func (pxy *StcpProxy) InWorkConn(conn frpNet.Conn) {
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HandleTcpWorkConnection(&pxy.cfg.LocalSvrConf, pxy.proxyPlugin, &pxy.cfg.BaseProxyConf, conn,
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[]byte(g.GlbClientCfg.Token))
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}
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// XTCP
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type XtcpProxy struct {
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BaseProxy
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cfg *config.XtcpProxyConf
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proxyPlugin plugin.Plugin
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}
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func (pxy *XtcpProxy) Run() (err error) {
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if pxy.cfg.Plugin != "" {
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pxy.proxyPlugin, err = plugin.Create(pxy.cfg.Plugin, pxy.cfg.PluginParams)
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if err != nil {
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return
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}
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}
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return
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}
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func (pxy *XtcpProxy) Close() {
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if pxy.proxyPlugin != nil {
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pxy.proxyPlugin.Close()
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}
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}
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func (pxy *XtcpProxy) InWorkConn(conn frpNet.Conn) {
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defer conn.Close()
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var natHoleSidMsg msg.NatHoleSid
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err := msg.ReadMsgInto(conn, &natHoleSidMsg)
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if err != nil {
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pxy.Error("xtcp read from workConn error: %v", err)
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return
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}
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natHoleClientMsg := &msg.NatHoleClient{
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ProxyName: pxy.cfg.ProxyName,
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Sid: natHoleSidMsg.Sid,
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}
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raddr, _ := net.ResolveUDPAddr("udp",
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fmt.Sprintf("%s:%d", g.GlbClientCfg.ServerAddr, g.GlbClientCfg.ServerUdpPort))
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clientConn, err := net.DialUDP("udp", nil, raddr)
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defer clientConn.Close()
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err = msg.WriteMsg(clientConn, natHoleClientMsg)
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if err != nil {
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pxy.Error("send natHoleClientMsg to server error: %v", err)
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return
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}
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// Wait for client address at most 5 seconds.
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var natHoleRespMsg msg.NatHoleResp
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clientConn.SetReadDeadline(time.Now().Add(5 * time.Second))
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buf := pool.GetBuf(1024)
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n, err := clientConn.Read(buf)
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if err != nil {
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pxy.Error("get natHoleRespMsg error: %v", err)
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return
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}
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err = msg.ReadMsgInto(bytes.NewReader(buf[:n]), &natHoleRespMsg)
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if err != nil {
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pxy.Error("get natHoleRespMsg error: %v", err)
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return
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}
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clientConn.SetReadDeadline(time.Time{})
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clientConn.Close()
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if natHoleRespMsg.Error != "" {
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pxy.Error("natHoleRespMsg get error info: %s", natHoleRespMsg.Error)
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return
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}
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pxy.Trace("get natHoleRespMsg, sid [%s], client address [%s]", natHoleRespMsg.Sid, natHoleRespMsg.ClientAddr)
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// Send sid to visitor udp address.
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time.Sleep(time.Second)
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laddr, _ := net.ResolveUDPAddr("udp", clientConn.LocalAddr().String())
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daddr, err := net.ResolveUDPAddr("udp", natHoleRespMsg.VisitorAddr)
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if err != nil {
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pxy.Error("resolve visitor udp address error: %v", err)
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return
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}
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lConn, err := net.DialUDP("udp", laddr, daddr)
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if err != nil {
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pxy.Error("dial visitor udp address error: %v", err)
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return
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}
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lConn.Write([]byte(natHoleRespMsg.Sid))
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kcpConn, err := frpNet.NewKcpConnFromUdp(lConn, true, natHoleRespMsg.VisitorAddr)
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if err != nil {
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pxy.Error("create kcp connection from udp connection error: %v", err)
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return
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}
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HandleTcpWorkConnection(&pxy.cfg.LocalSvrConf, pxy.proxyPlugin, &pxy.cfg.BaseProxyConf,
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frpNet.WrapConn(kcpConn), []byte(pxy.cfg.Sk))
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}
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// UDP
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type UdpProxy struct {
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BaseProxy
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cfg *config.UdpProxyConf
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localAddr *net.UDPAddr
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readCh chan *msg.UdpPacket
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// include msg.UdpPacket and msg.Ping
|
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sendCh chan msg.Message
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workConn frpNet.Conn
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}
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func (pxy *UdpProxy) Run() (err error) {
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pxy.localAddr, err = net.ResolveUDPAddr("udp", fmt.Sprintf("%s:%d", pxy.cfg.LocalIp, pxy.cfg.LocalPort))
|
||||
if err != nil {
|
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return
|
||||
}
|
||||
return
|
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}
|
||||
|
||||
func (pxy *UdpProxy) Close() {
|
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pxy.mu.Lock()
|
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defer pxy.mu.Unlock()
|
||||
|
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if !pxy.closed {
|
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pxy.closed = true
|
||||
if pxy.workConn != nil {
|
||||
pxy.workConn.Close()
|
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}
|
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if pxy.readCh != nil {
|
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close(pxy.readCh)
|
||||
}
|
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if pxy.sendCh != nil {
|
||||
close(pxy.sendCh)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (pxy *UdpProxy) InWorkConn(conn frpNet.Conn) {
|
||||
pxy.Info("incoming a new work connection for udp proxy, %s", conn.RemoteAddr().String())
|
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// close resources releated with old workConn
|
||||
pxy.Close()
|
||||
|
||||
pxy.mu.Lock()
|
||||
pxy.workConn = conn
|
||||
pxy.readCh = make(chan *msg.UdpPacket, 1024)
|
||||
pxy.sendCh = make(chan msg.Message, 1024)
|
||||
pxy.closed = false
|
||||
pxy.mu.Unlock()
|
||||
|
||||
workConnReaderFn := func(conn net.Conn, readCh chan *msg.UdpPacket) {
|
||||
for {
|
||||
var udpMsg msg.UdpPacket
|
||||
if errRet := msg.ReadMsgInto(conn, &udpMsg); errRet != nil {
|
||||
pxy.Warn("read from workConn for udp error: %v", errRet)
|
||||
return
|
||||
}
|
||||
if errRet := errors.PanicToError(func() {
|
||||
pxy.Trace("get udp package from workConn: %s", udpMsg.Content)
|
||||
readCh <- &udpMsg
|
||||
}); errRet != nil {
|
||||
pxy.Info("reader goroutine for udp work connection closed: %v", errRet)
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
workConnSenderFn := func(conn net.Conn, sendCh chan msg.Message) {
|
||||
defer func() {
|
||||
pxy.Info("writer goroutine for udp work connection closed")
|
||||
}()
|
||||
var errRet error
|
||||
for rawMsg := range sendCh {
|
||||
switch m := rawMsg.(type) {
|
||||
case *msg.UdpPacket:
|
||||
pxy.Trace("send udp package to workConn: %s", m.Content)
|
||||
case *msg.Ping:
|
||||
pxy.Trace("send ping message to udp workConn")
|
||||
}
|
||||
if errRet = msg.WriteMsg(conn, rawMsg); errRet != nil {
|
||||
pxy.Error("udp work write error: %v", errRet)
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
heartbeatFn := func(conn net.Conn, sendCh chan msg.Message) {
|
||||
var errRet error
|
||||
for {
|
||||
time.Sleep(time.Duration(30) * time.Second)
|
||||
if errRet = errors.PanicToError(func() {
|
||||
sendCh <- &msg.Ping{}
|
||||
}); errRet != nil {
|
||||
pxy.Trace("heartbeat goroutine for udp work connection closed")
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
go workConnSenderFn(pxy.workConn, pxy.sendCh)
|
||||
go workConnReaderFn(pxy.workConn, pxy.readCh)
|
||||
go heartbeatFn(pxy.workConn, pxy.sendCh)
|
||||
udp.Forwarder(pxy.localAddr, pxy.readCh, pxy.sendCh)
|
||||
}
|
||||
|
||||
// Common handler for tcp work connections.
|
||||
func HandleTcpWorkConnection(localInfo *config.LocalSvrConf, proxyPlugin plugin.Plugin,
|
||||
baseInfo *config.BaseProxyConf, workConn frpNet.Conn, encKey []byte) {
|
||||
|
||||
var (
|
||||
remote io.ReadWriteCloser
|
||||
err error
|
||||
)
|
||||
remote = workConn
|
||||
|
||||
if baseInfo.UseEncryption {
|
||||
remote, err = frpIo.WithEncryption(remote, encKey)
|
||||
if err != nil {
|
||||
workConn.Close()
|
||||
workConn.Error("create encryption stream error: %v", err)
|
||||
return
|
||||
}
|
||||
}
|
||||
if baseInfo.UseCompression {
|
||||
remote = frpIo.WithCompression(remote)
|
||||
}
|
||||
|
||||
if proxyPlugin != nil {
|
||||
// if plugin is set, let plugin handle connections first
|
||||
workConn.Debug("handle by plugin: %s", proxyPlugin.Name())
|
||||
proxyPlugin.Handle(remote, workConn)
|
||||
workConn.Debug("handle by plugin finished")
|
||||
return
|
||||
} else {
|
||||
localConn, err := frpNet.ConnectServer("tcp", fmt.Sprintf("%s:%d", localInfo.LocalIp, localInfo.LocalPort))
|
||||
if err != nil {
|
||||
workConn.Close()
|
||||
workConn.Error("connect to local service [%s:%d] error: %v", localInfo.LocalIp, localInfo.LocalPort, err)
|
||||
return
|
||||
}
|
||||
|
||||
workConn.Debug("join connections, localConn(l[%s] r[%s]) workConn(l[%s] r[%s])", localConn.LocalAddr().String(),
|
||||
localConn.RemoteAddr().String(), workConn.LocalAddr().String(), workConn.RemoteAddr().String())
|
||||
frpIo.Join(localConn, remote)
|
||||
workConn.Debug("join connections closed")
|
||||
}
|
||||
}
|
||||
138
client/proxy/proxy_manager.go
Normal file
138
client/proxy/proxy_manager.go
Normal file
@@ -0,0 +1,138 @@
|
||||
package proxy
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"sync"
|
||||
|
||||
"github.com/fatedier/frp/client/event"
|
||||
"github.com/fatedier/frp/models/config"
|
||||
"github.com/fatedier/frp/models/msg"
|
||||
"github.com/fatedier/frp/utils/log"
|
||||
frpNet "github.com/fatedier/frp/utils/net"
|
||||
|
||||
"github.com/fatedier/golib/errors"
|
||||
)
|
||||
|
||||
type ProxyManager struct {
|
||||
sendCh chan (msg.Message)
|
||||
proxies map[string]*ProxyWrapper
|
||||
|
||||
closed bool
|
||||
mu sync.RWMutex
|
||||
|
||||
logPrefix string
|
||||
log.Logger
|
||||
}
|
||||
|
||||
func NewProxyManager(msgSendCh chan (msg.Message), logPrefix string) *ProxyManager {
|
||||
return &ProxyManager{
|
||||
proxies: make(map[string]*ProxyWrapper),
|
||||
sendCh: msgSendCh,
|
||||
closed: false,
|
||||
logPrefix: logPrefix,
|
||||
Logger: log.NewPrefixLogger(logPrefix),
|
||||
}
|
||||
}
|
||||
|
||||
func (pm *ProxyManager) StartProxy(name string, remoteAddr string, serverRespErr string) error {
|
||||
pm.mu.RLock()
|
||||
pxy, ok := pm.proxies[name]
|
||||
pm.mu.RUnlock()
|
||||
if !ok {
|
||||
return fmt.Errorf("proxy [%s] not found", name)
|
||||
}
|
||||
|
||||
err := pxy.SetRunningStatus(remoteAddr, serverRespErr)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (pm *ProxyManager) Close() {
|
||||
pm.mu.RLock()
|
||||
defer pm.mu.RUnlock()
|
||||
for _, pxy := range pm.proxies {
|
||||
pxy.Stop()
|
||||
}
|
||||
}
|
||||
|
||||
func (pm *ProxyManager) HandleWorkConn(name string, workConn frpNet.Conn) {
|
||||
pm.mu.RLock()
|
||||
pw, ok := pm.proxies[name]
|
||||
pm.mu.RUnlock()
|
||||
if ok {
|
||||
pw.InWorkConn(workConn)
|
||||
} else {
|
||||
workConn.Close()
|
||||
}
|
||||
}
|
||||
|
||||
func (pm *ProxyManager) HandleEvent(evType event.EventType, payload interface{}) error {
|
||||
var m msg.Message
|
||||
switch e := payload.(type) {
|
||||
case *event.StartProxyPayload:
|
||||
m = e.NewProxyMsg
|
||||
case *event.CloseProxyPayload:
|
||||
m = e.CloseProxyMsg
|
||||
default:
|
||||
return event.ErrPayloadType
|
||||
}
|
||||
|
||||
err := errors.PanicToError(func() {
|
||||
pm.sendCh <- m
|
||||
})
|
||||
return err
|
||||
}
|
||||
|
||||
func (pm *ProxyManager) GetAllProxyStatus() []*ProxyStatus {
|
||||
ps := make([]*ProxyStatus, 0)
|
||||
pm.mu.RLock()
|
||||
defer pm.mu.RUnlock()
|
||||
for _, pxy := range pm.proxies {
|
||||
ps = append(ps, pxy.GetStatus())
|
||||
}
|
||||
return ps
|
||||
}
|
||||
|
||||
func (pm *ProxyManager) Reload(pxyCfgs map[string]config.ProxyConf) {
|
||||
pm.mu.Lock()
|
||||
defer pm.mu.Unlock()
|
||||
|
||||
delPxyNames := make([]string, 0)
|
||||
for name, pxy := range pm.proxies {
|
||||
del := false
|
||||
cfg, ok := pxyCfgs[name]
|
||||
if !ok {
|
||||
del = true
|
||||
} else {
|
||||
if !pxy.Cfg.Compare(cfg) {
|
||||
del = true
|
||||
}
|
||||
}
|
||||
|
||||
if del {
|
||||
delPxyNames = append(delPxyNames, name)
|
||||
delete(pm.proxies, name)
|
||||
|
||||
pxy.Stop()
|
||||
}
|
||||
}
|
||||
if len(delPxyNames) > 0 {
|
||||
pm.Info("proxy removed: %v", delPxyNames)
|
||||
}
|
||||
|
||||
addPxyNames := make([]string, 0)
|
||||
for name, cfg := range pxyCfgs {
|
||||
if _, ok := pm.proxies[name]; !ok {
|
||||
pxy := NewProxyWrapper(cfg, pm.HandleEvent, pm.logPrefix)
|
||||
pm.proxies[name] = pxy
|
||||
addPxyNames = append(addPxyNames, name)
|
||||
|
||||
pxy.Start()
|
||||
}
|
||||
}
|
||||
if len(addPxyNames) > 0 {
|
||||
pm.Info("proxy added: %v", addPxyNames)
|
||||
}
|
||||
}
|
||||
244
client/proxy/proxy_wrapper.go
Normal file
244
client/proxy/proxy_wrapper.go
Normal file
@@ -0,0 +1,244 @@
|
||||
package proxy
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
|
||||
"github.com/fatedier/frp/client/event"
|
||||
"github.com/fatedier/frp/client/health"
|
||||
"github.com/fatedier/frp/models/config"
|
||||
"github.com/fatedier/frp/models/msg"
|
||||
"github.com/fatedier/frp/utils/log"
|
||||
frpNet "github.com/fatedier/frp/utils/net"
|
||||
|
||||
"github.com/fatedier/golib/errors"
|
||||
)
|
||||
|
||||
const (
|
||||
ProxyStatusNew = "new"
|
||||
ProxyStatusWaitStart = "wait start"
|
||||
ProxyStatusStartErr = "start error"
|
||||
ProxyStatusRunning = "running"
|
||||
ProxyStatusCheckFailed = "check failed"
|
||||
ProxyStatusClosed = "closed"
|
||||
)
|
||||
|
||||
var (
|
||||
statusCheckInterval time.Duration = 3 * time.Second
|
||||
waitResponseTimeout = 20 * time.Second
|
||||
startErrTimeout = 30 * time.Second
|
||||
)
|
||||
|
||||
type ProxyStatus struct {
|
||||
Name string `json:"name"`
|
||||
Type string `json:"type"`
|
||||
Status string `json:"status"`
|
||||
Err string `json:"err"`
|
||||
Cfg config.ProxyConf `json:"cfg"`
|
||||
|
||||
// Got from server.
|
||||
RemoteAddr string `json:"remote_addr"`
|
||||
}
|
||||
|
||||
type ProxyWrapper struct {
|
||||
ProxyStatus
|
||||
|
||||
// underlying proxy
|
||||
pxy Proxy
|
||||
|
||||
// if ProxyConf has healcheck config
|
||||
// monitor will watch if it is alive
|
||||
monitor *health.HealthCheckMonitor
|
||||
|
||||
// event handler
|
||||
handler event.EventHandler
|
||||
|
||||
health uint32
|
||||
lastSendStartMsg time.Time
|
||||
lastStartErr time.Time
|
||||
closeCh chan struct{}
|
||||
healthNotifyCh chan struct{}
|
||||
mu sync.RWMutex
|
||||
|
||||
log.Logger
|
||||
}
|
||||
|
||||
func NewProxyWrapper(cfg config.ProxyConf, eventHandler event.EventHandler, logPrefix string) *ProxyWrapper {
|
||||
baseInfo := cfg.GetBaseInfo()
|
||||
pw := &ProxyWrapper{
|
||||
ProxyStatus: ProxyStatus{
|
||||
Name: baseInfo.ProxyName,
|
||||
Type: baseInfo.ProxyType,
|
||||
Status: ProxyStatusNew,
|
||||
Cfg: cfg,
|
||||
},
|
||||
closeCh: make(chan struct{}),
|
||||
healthNotifyCh: make(chan struct{}),
|
||||
handler: eventHandler,
|
||||
Logger: log.NewPrefixLogger(logPrefix),
|
||||
}
|
||||
pw.AddLogPrefix(pw.Name)
|
||||
|
||||
if baseInfo.HealthCheckType != "" {
|
||||
pw.health = 1 // means failed
|
||||
pw.monitor = health.NewHealthCheckMonitor(baseInfo.HealthCheckType, baseInfo.HealthCheckIntervalS,
|
||||
baseInfo.HealthCheckTimeoutS, baseInfo.HealthCheckMaxFailed, baseInfo.HealthCheckAddr,
|
||||
baseInfo.HealthCheckUrl, pw.statusNormalCallback, pw.statusFailedCallback)
|
||||
pw.monitor.SetLogger(pw.Logger)
|
||||
pw.Trace("enable health check monitor")
|
||||
}
|
||||
|
||||
pw.pxy = NewProxy(pw.Cfg)
|
||||
return pw
|
||||
}
|
||||
|
||||
func (pw *ProxyWrapper) SetRunningStatus(remoteAddr string, respErr string) error {
|
||||
pw.mu.Lock()
|
||||
defer pw.mu.Unlock()
|
||||
if pw.Status != ProxyStatusWaitStart {
|
||||
return fmt.Errorf("status not wait start, ignore start message")
|
||||
}
|
||||
|
||||
pw.RemoteAddr = remoteAddr
|
||||
if respErr != "" {
|
||||
pw.Status = ProxyStatusStartErr
|
||||
pw.Err = respErr
|
||||
pw.lastStartErr = time.Now()
|
||||
return fmt.Errorf(pw.Err)
|
||||
}
|
||||
|
||||
if err := pw.pxy.Run(); err != nil {
|
||||
pw.Status = ProxyStatusStartErr
|
||||
pw.Err = err.Error()
|
||||
pw.lastStartErr = time.Now()
|
||||
return err
|
||||
}
|
||||
|
||||
pw.Status = ProxyStatusRunning
|
||||
pw.Err = ""
|
||||
return nil
|
||||
}
|
||||
|
||||
func (pw *ProxyWrapper) Start() {
|
||||
go pw.checkWorker()
|
||||
if pw.monitor != nil {
|
||||
go pw.monitor.Start()
|
||||
}
|
||||
}
|
||||
|
||||
func (pw *ProxyWrapper) Stop() {
|
||||
pw.mu.Lock()
|
||||
defer pw.mu.Unlock()
|
||||
close(pw.closeCh)
|
||||
close(pw.healthNotifyCh)
|
||||
pw.pxy.Close()
|
||||
if pw.monitor != nil {
|
||||
pw.monitor.Stop()
|
||||
}
|
||||
pw.Status = ProxyStatusClosed
|
||||
|
||||
pw.handler(event.EvCloseProxy, &event.CloseProxyPayload{
|
||||
CloseProxyMsg: &msg.CloseProxy{
|
||||
ProxyName: pw.Name,
|
||||
},
|
||||
})
|
||||
}
|
||||
|
||||
func (pw *ProxyWrapper) checkWorker() {
|
||||
if pw.monitor != nil {
|
||||
// let monitor do check request first
|
||||
time.Sleep(500 * time.Millisecond)
|
||||
}
|
||||
for {
|
||||
// check proxy status
|
||||
now := time.Now()
|
||||
if atomic.LoadUint32(&pw.health) == 0 {
|
||||
pw.mu.Lock()
|
||||
if pw.Status == ProxyStatusNew ||
|
||||
pw.Status == ProxyStatusCheckFailed ||
|
||||
(pw.Status == ProxyStatusWaitStart && now.After(pw.lastSendStartMsg.Add(waitResponseTimeout))) ||
|
||||
(pw.Status == ProxyStatusStartErr && now.After(pw.lastStartErr.Add(startErrTimeout))) {
|
||||
|
||||
pw.Trace("change status from [%s] to [%s]", pw.Status, ProxyStatusWaitStart)
|
||||
pw.Status = ProxyStatusWaitStart
|
||||
|
||||
var newProxyMsg msg.NewProxy
|
||||
pw.Cfg.MarshalToMsg(&newProxyMsg)
|
||||
pw.lastSendStartMsg = now
|
||||
pw.handler(event.EvStartProxy, &event.StartProxyPayload{
|
||||
NewProxyMsg: &newProxyMsg,
|
||||
})
|
||||
}
|
||||
pw.mu.Unlock()
|
||||
} else {
|
||||
pw.mu.Lock()
|
||||
if pw.Status == ProxyStatusRunning || pw.Status == ProxyStatusWaitStart {
|
||||
pw.handler(event.EvCloseProxy, &event.CloseProxyPayload{
|
||||
CloseProxyMsg: &msg.CloseProxy{
|
||||
ProxyName: pw.Name,
|
||||
},
|
||||
})
|
||||
pw.Trace("change status from [%s] to [%s]", pw.Status, ProxyStatusCheckFailed)
|
||||
pw.Status = ProxyStatusCheckFailed
|
||||
}
|
||||
pw.mu.Unlock()
|
||||
}
|
||||
|
||||
select {
|
||||
case <-pw.closeCh:
|
||||
return
|
||||
case <-time.After(statusCheckInterval):
|
||||
case <-pw.healthNotifyCh:
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (pw *ProxyWrapper) statusNormalCallback() {
|
||||
atomic.StoreUint32(&pw.health, 0)
|
||||
errors.PanicToError(func() {
|
||||
select {
|
||||
case pw.healthNotifyCh <- struct{}{}:
|
||||
default:
|
||||
}
|
||||
})
|
||||
pw.Info("health check success")
|
||||
}
|
||||
|
||||
func (pw *ProxyWrapper) statusFailedCallback() {
|
||||
atomic.StoreUint32(&pw.health, 1)
|
||||
errors.PanicToError(func() {
|
||||
select {
|
||||
case pw.healthNotifyCh <- struct{}{}:
|
||||
default:
|
||||
}
|
||||
})
|
||||
pw.Info("health check failed")
|
||||
}
|
||||
|
||||
func (pw *ProxyWrapper) InWorkConn(workConn frpNet.Conn) {
|
||||
pw.mu.RLock()
|
||||
pxy := pw.pxy
|
||||
pw.mu.RUnlock()
|
||||
if pxy != nil {
|
||||
workConn.Debug("start a new work connection, localAddr: %s remoteAddr: %s", workConn.LocalAddr().String(), workConn.RemoteAddr().String())
|
||||
go pxy.InWorkConn(workConn)
|
||||
} else {
|
||||
workConn.Close()
|
||||
}
|
||||
}
|
||||
|
||||
func (pw *ProxyWrapper) GetStatus() *ProxyStatus {
|
||||
pw.mu.RLock()
|
||||
defer pw.mu.RUnlock()
|
||||
ps := &ProxyStatus{
|
||||
Name: pw.Name,
|
||||
Type: pw.Type,
|
||||
Status: pw.Status,
|
||||
Err: pw.Err,
|
||||
Cfg: pw.Cfg,
|
||||
RemoteAddr: pw.RemoteAddr,
|
||||
}
|
||||
return ps
|
||||
}
|
||||
Reference in New Issue
Block a user