frp/server/dashboard_api.go

409 lines
12 KiB
Go

// Copyright 2017 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 server
import (
"cmp"
"encoding/json"
"net/http"
"slices"
"github.com/gorilla/mux"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/fatedier/frp/pkg/config/types"
v1 "github.com/fatedier/frp/pkg/config/v1"
"github.com/fatedier/frp/pkg/metrics/mem"
httppkg "github.com/fatedier/frp/pkg/util/http"
"github.com/fatedier/frp/pkg/util/log"
netpkg "github.com/fatedier/frp/pkg/util/net"
"github.com/fatedier/frp/pkg/util/version"
)
// TODO(fatedier): add an API to clean status of all offline proxies.
type GeneralResponse struct {
Code int
Msg string
}
func (svr *Service) registerRouteHandlers(helper *httppkg.RouterRegisterHelper) {
helper.Router.HandleFunc("/healthz", svr.healthz)
subRouter := helper.Router.NewRoute().Subrouter()
subRouter.Use(helper.AuthMiddleware.Middleware)
// metrics
if svr.cfg.EnablePrometheus {
subRouter.Handle("/metrics", promhttp.Handler())
}
// apis
subRouter.HandleFunc("/api/serverinfo", svr.apiServerInfo).Methods("GET")
subRouter.HandleFunc("/api/proxy/{type}", svr.apiProxyByType).Methods("GET")
subRouter.HandleFunc("/api/proxy/{type}/{name}", svr.apiProxyByTypeAndName).Methods("GET")
subRouter.HandleFunc("/api/traffic/{name}", svr.apiProxyTraffic).Methods("GET")
subRouter.HandleFunc("/api/proxies", svr.deleteProxies).Methods("DELETE")
// view
subRouter.Handle("/favicon.ico", http.FileServer(helper.AssetsFS)).Methods("GET")
subRouter.PathPrefix("/static/").Handler(
netpkg.MakeHTTPGzipHandler(http.StripPrefix("/static/", http.FileServer(helper.AssetsFS))),
).Methods("GET")
subRouter.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, "/static/", http.StatusMovedPermanently)
})
}
type serverInfoResp struct {
Version string `json:"version"`
BindPort int `json:"bindPort"`
VhostHTTPPort int `json:"vhostHTTPPort"`
VhostHTTPSPort int `json:"vhostHTTPSPort"`
TCPMuxHTTPConnectPort int `json:"tcpmuxHTTPConnectPort"`
KCPBindPort int `json:"kcpBindPort"`
QUICBindPort int `json:"quicBindPort"`
SubdomainHost string `json:"subdomainHost"`
MaxPoolCount int64 `json:"maxPoolCount"`
MaxPortsPerClient int64 `json:"maxPortsPerClient"`
HeartBeatTimeout int64 `json:"heartbeatTimeout"`
AllowPortsStr string `json:"allowPortsStr,omitempty"`
TLSForce bool `json:"tlsForce,omitempty"`
TotalTrafficIn int64 `json:"totalTrafficIn"`
TotalTrafficOut int64 `json:"totalTrafficOut"`
CurConns int64 `json:"curConns"`
ClientCounts int64 `json:"clientCounts"`
ProxyTypeCounts map[string]int64 `json:"proxyTypeCount"`
}
// /healthz
func (svr *Service) healthz(w http.ResponseWriter, _ *http.Request) {
w.WriteHeader(200)
}
// /api/serverinfo
func (svr *Service) apiServerInfo(w http.ResponseWriter, r *http.Request) {
res := GeneralResponse{Code: 200}
defer func() {
log.Infof("Http response [%s]: code [%d]", r.URL.Path, res.Code)
w.WriteHeader(res.Code)
if len(res.Msg) > 0 {
_, _ = w.Write([]byte(res.Msg))
}
}()
log.Infof("Http request: [%s]", r.URL.Path)
serverStats := mem.StatsCollector.GetServer()
svrResp := serverInfoResp{
Version: version.Full(),
BindPort: svr.cfg.BindPort,
VhostHTTPPort: svr.cfg.VhostHTTPPort,
VhostHTTPSPort: svr.cfg.VhostHTTPSPort,
TCPMuxHTTPConnectPort: svr.cfg.TCPMuxHTTPConnectPort,
KCPBindPort: svr.cfg.KCPBindPort,
QUICBindPort: svr.cfg.QUICBindPort,
SubdomainHost: svr.cfg.SubDomainHost,
MaxPoolCount: svr.cfg.Transport.MaxPoolCount,
MaxPortsPerClient: svr.cfg.MaxPortsPerClient,
HeartBeatTimeout: svr.cfg.Transport.HeartbeatTimeout,
AllowPortsStr: types.PortsRangeSlice(svr.cfg.AllowPorts).String(),
TLSForce: svr.cfg.Transport.TLS.Force,
TotalTrafficIn: serverStats.TotalTrafficIn,
TotalTrafficOut: serverStats.TotalTrafficOut,
CurConns: serverStats.CurConns,
ClientCounts: serverStats.ClientCounts,
ProxyTypeCounts: serverStats.ProxyTypeCounts,
}
buf, _ := json.Marshal(&svrResp)
res.Msg = string(buf)
}
type BaseOutConf struct {
v1.ProxyBaseConfig
}
type TCPOutConf struct {
BaseOutConf
RemotePort int `json:"remotePort"`
}
type TCPMuxOutConf struct {
BaseOutConf
v1.DomainConfig
Multiplexer string `json:"multiplexer"`
RouteByHTTPUser string `json:"routeByHTTPUser"`
}
type UDPOutConf struct {
BaseOutConf
RemotePort int `json:"remotePort"`
}
type HTTPOutConf struct {
BaseOutConf
v1.DomainConfig
Locations []string `json:"locations"`
HostHeaderRewrite string `json:"hostHeaderRewrite"`
}
type HTTPSOutConf struct {
BaseOutConf
v1.DomainConfig
}
type STCPOutConf struct {
BaseOutConf
}
type XTCPOutConf struct {
BaseOutConf
}
func getConfByType(proxyType string) any {
switch v1.ProxyType(proxyType) {
case v1.ProxyTypeTCP:
return &TCPOutConf{}
case v1.ProxyTypeTCPMUX:
return &TCPMuxOutConf{}
case v1.ProxyTypeUDP:
return &UDPOutConf{}
case v1.ProxyTypeHTTP:
return &HTTPOutConf{}
case v1.ProxyTypeHTTPS:
return &HTTPSOutConf{}
case v1.ProxyTypeSTCP:
return &STCPOutConf{}
case v1.ProxyTypeXTCP:
return &XTCPOutConf{}
default:
return nil
}
}
// Get proxy info.
type ProxyStatsInfo struct {
Name string `json:"name"`
Conf interface{} `json:"conf"`
ClientVersion string `json:"clientVersion,omitempty"`
TodayTrafficIn int64 `json:"todayTrafficIn"`
TodayTrafficOut int64 `json:"todayTrafficOut"`
CurConns int64 `json:"curConns"`
LastStartTime string `json:"lastStartTime"`
LastCloseTime string `json:"lastCloseTime"`
Status string `json:"status"`
}
type GetProxyInfoResp struct {
Proxies []*ProxyStatsInfo `json:"proxies"`
}
// /api/proxy/:type
func (svr *Service) apiProxyByType(w http.ResponseWriter, r *http.Request) {
res := GeneralResponse{Code: 200}
params := mux.Vars(r)
proxyType := params["type"]
defer func() {
log.Infof("Http response [%s]: code [%d]", r.URL.Path, res.Code)
w.WriteHeader(res.Code)
if len(res.Msg) > 0 {
_, _ = w.Write([]byte(res.Msg))
}
}()
log.Infof("Http request: [%s]", r.URL.Path)
proxyInfoResp := GetProxyInfoResp{}
proxyInfoResp.Proxies = svr.getProxyStatsByType(proxyType)
slices.SortFunc(proxyInfoResp.Proxies, func(a, b *ProxyStatsInfo) int {
return cmp.Compare(a.Name, b.Name)
})
buf, _ := json.Marshal(&proxyInfoResp)
res.Msg = string(buf)
}
func (svr *Service) getProxyStatsByType(proxyType string) (proxyInfos []*ProxyStatsInfo) {
proxyStats := mem.StatsCollector.GetProxiesByType(proxyType)
proxyInfos = make([]*ProxyStatsInfo, 0, len(proxyStats))
for _, ps := range proxyStats {
proxyInfo := &ProxyStatsInfo{}
if pxy, ok := svr.pxyManager.GetByName(ps.Name); ok {
content, err := json.Marshal(pxy.GetConfigurer())
if err != nil {
log.Warnf("marshal proxy [%s] conf info error: %v", ps.Name, err)
continue
}
proxyInfo.Conf = getConfByType(ps.Type)
if err = json.Unmarshal(content, &proxyInfo.Conf); err != nil {
log.Warnf("unmarshal proxy [%s] conf info error: %v", ps.Name, err)
continue
}
proxyInfo.Status = "online"
if pxy.GetLoginMsg() != nil {
proxyInfo.ClientVersion = pxy.GetLoginMsg().Version
}
} else {
proxyInfo.Status = "offline"
}
proxyInfo.Name = ps.Name
proxyInfo.TodayTrafficIn = ps.TodayTrafficIn
proxyInfo.TodayTrafficOut = ps.TodayTrafficOut
proxyInfo.CurConns = ps.CurConns
proxyInfo.LastStartTime = ps.LastStartTime
proxyInfo.LastCloseTime = ps.LastCloseTime
proxyInfos = append(proxyInfos, proxyInfo)
}
return
}
// Get proxy info by name.
type GetProxyStatsResp struct {
Name string `json:"name"`
Conf interface{} `json:"conf"`
TodayTrafficIn int64 `json:"todayTrafficIn"`
TodayTrafficOut int64 `json:"todayTrafficOut"`
CurConns int64 `json:"curConns"`
LastStartTime string `json:"lastStartTime"`
LastCloseTime string `json:"lastCloseTime"`
Status string `json:"status"`
}
// /api/proxy/:type/:name
func (svr *Service) apiProxyByTypeAndName(w http.ResponseWriter, r *http.Request) {
res := GeneralResponse{Code: 200}
params := mux.Vars(r)
proxyType := params["type"]
name := params["name"]
defer func() {
log.Infof("Http response [%s]: code [%d]", r.URL.Path, res.Code)
w.WriteHeader(res.Code)
if len(res.Msg) > 0 {
_, _ = w.Write([]byte(res.Msg))
}
}()
log.Infof("Http request: [%s]", r.URL.Path)
var proxyStatsResp GetProxyStatsResp
proxyStatsResp, res.Code, res.Msg = svr.getProxyStatsByTypeAndName(proxyType, name)
if res.Code != 200 {
return
}
buf, _ := json.Marshal(&proxyStatsResp)
res.Msg = string(buf)
}
func (svr *Service) getProxyStatsByTypeAndName(proxyType string, proxyName string) (proxyInfo GetProxyStatsResp, code int, msg string) {
proxyInfo.Name = proxyName
ps := mem.StatsCollector.GetProxiesByTypeAndName(proxyType, proxyName)
if ps == nil {
code = 404
msg = "no proxy info found"
} else {
if pxy, ok := svr.pxyManager.GetByName(proxyName); ok {
content, err := json.Marshal(pxy.GetConfigurer())
if err != nil {
log.Warnf("marshal proxy [%s] conf info error: %v", ps.Name, err)
code = 400
msg = "parse conf error"
return
}
proxyInfo.Conf = getConfByType(ps.Type)
if err = json.Unmarshal(content, &proxyInfo.Conf); err != nil {
log.Warnf("unmarshal proxy [%s] conf info error: %v", ps.Name, err)
code = 400
msg = "parse conf error"
return
}
proxyInfo.Status = "online"
} else {
proxyInfo.Status = "offline"
}
proxyInfo.TodayTrafficIn = ps.TodayTrafficIn
proxyInfo.TodayTrafficOut = ps.TodayTrafficOut
proxyInfo.CurConns = ps.CurConns
proxyInfo.LastStartTime = ps.LastStartTime
proxyInfo.LastCloseTime = ps.LastCloseTime
code = 200
}
return
}
// /api/traffic/:name
type GetProxyTrafficResp struct {
Name string `json:"name"`
TrafficIn []int64 `json:"trafficIn"`
TrafficOut []int64 `json:"trafficOut"`
}
func (svr *Service) apiProxyTraffic(w http.ResponseWriter, r *http.Request) {
res := GeneralResponse{Code: 200}
params := mux.Vars(r)
name := params["name"]
defer func() {
log.Infof("Http response [%s]: code [%d]", r.URL.Path, res.Code)
w.WriteHeader(res.Code)
if len(res.Msg) > 0 {
_, _ = w.Write([]byte(res.Msg))
}
}()
log.Infof("Http request: [%s]", r.URL.Path)
trafficResp := GetProxyTrafficResp{}
trafficResp.Name = name
proxyTrafficInfo := mem.StatsCollector.GetProxyTraffic(name)
if proxyTrafficInfo == nil {
res.Code = 404
res.Msg = "no proxy info found"
return
}
trafficResp.TrafficIn = proxyTrafficInfo.TrafficIn
trafficResp.TrafficOut = proxyTrafficInfo.TrafficOut
buf, _ := json.Marshal(&trafficResp)
res.Msg = string(buf)
}
// DELETE /api/proxies?status=offline
func (svr *Service) deleteProxies(w http.ResponseWriter, r *http.Request) {
res := GeneralResponse{Code: 200}
log.Infof("Http request: [%s]", r.URL.Path)
defer func() {
log.Infof("Http response [%s]: code [%d]", r.URL.Path, res.Code)
w.WriteHeader(res.Code)
if len(res.Msg) > 0 {
_, _ = w.Write([]byte(res.Msg))
}
}()
status := r.URL.Query().Get("status")
if status != "offline" {
res.Code = 400
res.Msg = "status only support offline"
return
}
cleared, total := mem.StatsCollector.ClearOfflineProxies()
log.Infof("cleared [%d] offline proxies, total [%d] proxies", cleared, total)
}