// Copyright 2016 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 main import ( "encoding/base64" "encoding/json" "fmt" "io/ioutil" "net/http" "os" "os/signal" "strconv" "strings" "syscall" "time" docopt "github.com/docopt/docopt-go" "github.com/rodaine/table" ini "github.com/vaughan0/go-ini" "github.com/fatedier/frp/client" "github.com/fatedier/frp/models/config" "github.com/fatedier/frp/utils/log" "github.com/fatedier/frp/utils/version" ) var ( configFile string = "./frpc.ini" ) var usage string = `frpc is the client of frp Usage: frpc [-c config_file] [-L log_file] [--log-level=] [--server-addr=] frpc reload [-c config_file] frpc status [-c config_file] frpc -h | --help frpc -v | --version Options: -c config_file set config file -L log_file set output log file, including console --log-level= set log level: debug, info, warn, error --server-addr= addr which frps is listening for, example: 0.0.0.0:7000 -h --help show this screen -v --version show version ` func main() { var err error confFile := "./frpc.ini" // the configures parsed from file will be replaced by those from command line if exist args, err := docopt.Parse(usage, nil, true, version.Full(), false) if args["-c"] != nil { confFile = args["-c"].(string) } conf, err := ini.LoadFile(confFile) if err != nil { fmt.Println(err) os.Exit(1) } config.ClientCommonCfg, err = config.LoadClientCommonConf(conf) if err != nil { fmt.Println(err) os.Exit(1) } config.ClientCommonCfg.ConfigFile = confFile // check if reload command if args["reload"] != nil { if args["reload"].(bool) { if err = CmdReload(); err != nil { fmt.Printf("frps reload error: %v\n", err) os.Exit(1) } else { fmt.Printf("reload success\n") os.Exit(0) } } } // check if status command if args["status"] != nil { if args["status"].(bool) { if err = CmdStatus(); err != nil { fmt.Printf("frpc get status error: %v\n", err) os.Exit(1) } else { os.Exit(0) } } } if args["-L"] != nil { if args["-L"].(string) == "console" { config.ClientCommonCfg.LogWay = "console" } else { config.ClientCommonCfg.LogWay = "file" config.ClientCommonCfg.LogFile = args["-L"].(string) } } if args["--log-level"] != nil { config.ClientCommonCfg.LogLevel = args["--log-level"].(string) } if args["--server-addr"] != nil { addr := strings.Split(args["--server-addr"].(string), ":") if len(addr) != 2 { fmt.Println("--server-addr format error: example 0.0.0.0:7000") os.Exit(1) } serverPort, err := strconv.ParseInt(addr[1], 10, 64) if err != nil { fmt.Println("--server-addr format error, example 0.0.0.0:7000") os.Exit(1) } config.ClientCommonCfg.ServerAddr = addr[0] config.ClientCommonCfg.ServerPort = int(serverPort) } if args["-v"] != nil { if args["-v"].(bool) { fmt.Println(version.Full()) os.Exit(0) } } pxyCfgs, visitorCfgs, err := config.LoadProxyConfFromFile(config.ClientCommonCfg.User, conf, config.ClientCommonCfg.Start) if err != nil { fmt.Println(err) os.Exit(1) } log.InitLog(config.ClientCommonCfg.LogWay, config.ClientCommonCfg.LogFile, config.ClientCommonCfg.LogLevel, config.ClientCommonCfg.LogMaxDays) svr := client.NewService(pxyCfgs, visitorCfgs) // Capture the exit signal if we use kcp. if config.ClientCommonCfg.Protocol == "kcp" { go HandleSignal(svr) } err = svr.Run() if err != nil { fmt.Println(err) os.Exit(1) } } func HandleSignal(svr *client.Service) { ch := make(chan os.Signal) signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM) <-ch svr.Close() time.Sleep(250 * time.Millisecond) os.Exit(0) } func CmdReload() error { if config.ClientCommonCfg.AdminPort == 0 { return fmt.Errorf("admin_port shoud be set if you want to use reload feature") } req, err := http.NewRequest("GET", "http://"+ config.ClientCommonCfg.AdminAddr+":"+fmt.Sprintf("%d", config.ClientCommonCfg.AdminPort)+"/api/reload", nil) if err != nil { return err } authStr := "Basic " + base64.StdEncoding.EncodeToString([]byte(config.ClientCommonCfg.AdminUser+":"+ config.ClientCommonCfg.AdminPwd)) req.Header.Add("Authorization", authStr) resp, err := http.DefaultClient.Do(req) if err != nil { return err } else { if resp.StatusCode != 200 { return fmt.Errorf("admin api status code [%d]", resp.StatusCode) } defer resp.Body.Close() body, err := ioutil.ReadAll(resp.Body) if err != nil { return err } res := &client.GeneralResponse{} err = json.Unmarshal(body, &res) if err != nil { return fmt.Errorf("unmarshal http response error: %s", strings.TrimSpace(string(body))) } else if res.Code != 0 { return fmt.Errorf(res.Msg) } } return nil } func CmdStatus() error { if config.ClientCommonCfg.AdminPort == 0 { return fmt.Errorf("admin_port shoud be set if you want to get proxy status") } req, err := http.NewRequest("GET", "http://"+ config.ClientCommonCfg.AdminAddr+":"+fmt.Sprintf("%d", config.ClientCommonCfg.AdminPort)+"/api/status", nil) if err != nil { return err } authStr := "Basic " + base64.StdEncoding.EncodeToString([]byte(config.ClientCommonCfg.AdminUser+":"+ config.ClientCommonCfg.AdminPwd)) req.Header.Add("Authorization", authStr) resp, err := http.DefaultClient.Do(req) if err != nil { return err } else { if resp.StatusCode != 200 { return fmt.Errorf("admin api status code [%d]", resp.StatusCode) } defer resp.Body.Close() body, err := ioutil.ReadAll(resp.Body) if err != nil { return err } res := &client.StatusResp{} err = json.Unmarshal(body, &res) if err != nil { return fmt.Errorf("unmarshal http response error: %s", strings.TrimSpace(string(body))) } fmt.Println("Proxy Status...") if len(res.Tcp) > 0 { fmt.Printf("TCP") tbl := table.New("Name", "Status", "LocalAddr", "Plugin", "RemoteAddr", "Error") for _, ps := range res.Tcp { tbl.AddRow(ps.Name, ps.Status, ps.LocalAddr, ps.Plugin, ps.RemoteAddr, ps.Err) } tbl.Print() fmt.Println("") } if len(res.Udp) > 0 { fmt.Printf("UDP") tbl := table.New("Name", "Status", "LocalAddr", "Plugin", "RemoteAddr", "Error") for _, ps := range res.Udp { tbl.AddRow(ps.Name, ps.Status, ps.LocalAddr, ps.Plugin, ps.RemoteAddr, ps.Err) } tbl.Print() fmt.Println("") } if len(res.Http) > 0 { fmt.Printf("HTTP") tbl := table.New("Name", "Status", "LocalAddr", "Plugin", "RemoteAddr", "Error") for _, ps := range res.Http { tbl.AddRow(ps.Name, ps.Status, ps.LocalAddr, ps.Plugin, ps.RemoteAddr, ps.Err) } tbl.Print() fmt.Println("") } if len(res.Https) > 0 { fmt.Printf("HTTPS") tbl := table.New("Name", "Status", "LocalAddr", "Plugin", "RemoteAddr", "Error") for _, ps := range res.Https { tbl.AddRow(ps.Name, ps.Status, ps.LocalAddr, ps.Plugin, ps.RemoteAddr, ps.Err) } tbl.Print() fmt.Println("") } if len(res.Stcp) > 0 { fmt.Printf("STCP") tbl := table.New("Name", "Status", "LocalAddr", "Plugin", "RemoteAddr", "Error") for _, ps := range res.Stcp { tbl.AddRow(ps.Name, ps.Status, ps.LocalAddr, ps.Plugin, ps.RemoteAddr, ps.Err) } tbl.Print() fmt.Println("") } if len(res.Xtcp) > 0 { fmt.Printf("XTCP") tbl := table.New("Name", "Status", "LocalAddr", "Plugin", "RemoteAddr", "Error") for _, ps := range res.Xtcp { tbl.AddRow(ps.Name, ps.Status, ps.LocalAddr, ps.Plugin, ps.RemoteAddr, ps.Err) } tbl.Print() fmt.Println("") } } return nil }