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manage.go
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manage.go
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// Copyright 2017 longXboy, longxboyhi@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 server
import (
"fmt"
"net/http"
"sync/atomic"
"github.com/e-dard/netbug"
"github.com/longXboy/lunnel/log"
"github.com/longXboy/lunnel/msg"
"github.com/satori/go.uuid"
"gopkg.in/gin-gonic/gin.v1"
)
type tunnelStateReq struct {
PublicUrl string
}
type tunnelStateResp struct {
Tunnels []string
}
type clientState struct {
Id string
LastRead uint64
EncryptMode string
EnableCompress bool
Version string
Tunnels map[string]tunnelState
TotalPipes uint32
BusyPipes uint32
IdlePipes uint32
}
type tunnelState struct {
ClientId string `json:",omitempty"`
Tunnel msg.Tunnel
IsClosed bool
}
type clientStateResp struct {
Clients []clientState
}
func listenAndServeManage() {
if serverConf.Debug {
gin.SetMode("debug")
} else {
gin.SetMode("release")
}
r := gin.New()
r.GET("/v1/tunnels", tunnelsQuery)
r.POST("/v1/tunnels", tunnelQuery)
r.GET("/v1/clients", clientsQuery)
r.GET("/v1/clients/clientId", clientQuery)
mux := http.NewServeMux()
if serverConf.PProfEnable {
netbug.RegisterHandler("/debug/pprof/", mux)
}
mux.Handle("/v1/", r)
log.WithFields(log.Fields{"addr": fmt.Sprintf("%s:%d", serverConf.ListenIP, serverConf.ManagePort)}).Infoln("start to listen and serve manage")
err := http.ListenAndServe(fmt.Sprintf("%s:%d", serverConf.ListenIP, serverConf.ManagePort), mux)
if err != nil {
log.WithFields(log.Fields{"addr": fmt.Sprintf("%s:%d", serverConf.ListenIP, serverConf.ManagePort), "err": err.Error()}).Infoln("listen and serve manage failed!")
}
}
func tunnelQuery(c *gin.Context) {
var query tunnelStateReq
err := c.BindJSON(&query)
if err != nil {
c.String(http.StatusBadRequest, fmt.Sprintf("unmarshal req body failed!"))
return
}
var tunnelStats tunnelStateResp = tunnelStateResp{Tunnels: []string{}}
if query.PublicUrl != "" {
TunnelMapLock.RLock()
tunnel, isok := TunnelMap[query.PublicUrl]
TunnelMapLock.RUnlock()
if isok {
tunnelStats.Tunnels = append(tunnelStats.Tunnels, tunnel.tunnelConfig.PublicAddr())
}
}
c.JSON(http.StatusOK, tunnelStats)
}
func tunnelsQuery(c *gin.Context) {
var tunnelStats tunnelStateResp = tunnelStateResp{Tunnels: []string{}}
TunnelMapLock.RLock()
for _, v := range TunnelMap {
tunnelStats.Tunnels = append(tunnelStats.Tunnels, v.tunnelConfig.PublicAddr())
}
TunnelMapLock.RUnlock()
c.JSON(http.StatusOK, tunnelStats)
}
func clientQuery(c *gin.Context) {
clientId := c.Param("clientId")
uuid, err := uuid.FromString(clientId)
if err != nil {
c.String(http.StatusBadRequest, fmt.Sprintf("invalid uuid"))
return
}
var clientStates clientStateResp = clientStateResp{Clients: []clientState{}}
ControlMapLock.RLock()
ctlClient := ControlMap[uuid]
ControlMapLock.RUnlock()
var client clientState
client.LastRead = atomic.LoadUint64(&client.LastRead)
client.TotalPipes = atomic.LoadUint32(&ctlClient.totalPipes)
client.Tunnels = make(map[string]tunnelState)
ctlClient.tunnelLock.Lock()
for _, v := range ctlClient.tunnels {
client.Tunnels[v.name] = tunnelState{Tunnel: v.tunnelConfig, IsClosed: v.isClosed}
}
ctlClient.tunnelLock.Unlock()
client.EnableCompress = ctlClient.enableCompress
client.EncryptMode = ctlClient.encryptMode
client.Id = ctlClient.ClientID.String()
client.Version = ctlClient.version
clientStates.Clients = append(clientStates.Clients, client)
c.JSON(http.StatusOK, clientStates)
}
func clientsQuery(c *gin.Context) {
var clientStates clientStateResp = clientStateResp{Clients: []clientState{}}
clients := make([]*Control, 0)
ControlMapLock.RLock()
for _, v := range ControlMap {
clients = append(clients, v)
}
ControlMapLock.RUnlock()
for _, c := range clients {
var client clientState
client.LastRead = atomic.LoadUint64(&c.lastRead)
client.TotalPipes = atomic.LoadUint32(&c.totalPipes)
client.BusyPipes = atomic.LoadUint32(&c.busyPipeCount)
client.IdlePipes = atomic.LoadUint32(&c.idlePipeCount)
client.Tunnels = make(map[string]tunnelState)
c.tunnelLock.Lock()
for _, v := range c.tunnels {
client.Tunnels[v.name] = tunnelState{Tunnel: v.tunnelConfig, IsClosed: v.isClosed, ClientId: v.ctl.ClientID.String()}
}
c.tunnelLock.Unlock()
client.EnableCompress = c.enableCompress
client.EncryptMode = c.encryptMode
client.Id = c.ClientID.String()
client.Version = c.version
clientStates.Clients = append(clientStates.Clients, client)
}
c.JSON(http.StatusOK, clientStates)
}