mirror of
https://github.com/fatedier/frp.git
synced 2024-12-15 10:58:59 +08:00
216 lines
5.3 KiB
Go
216 lines
5.3 KiB
Go
// Copyright 2018 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 sub
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import (
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"context"
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"fmt"
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"net"
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"os"
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"os/signal"
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"strconv"
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"strings"
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"syscall"
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"time"
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"github.com/fatedier/frp/client"
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"github.com/fatedier/frp/pkg/auth"
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"github.com/fatedier/frp/pkg/config"
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"github.com/fatedier/frp/pkg/util/log"
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"github.com/fatedier/frp/pkg/util/version"
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"github.com/spf13/cobra"
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)
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const (
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CfgFileTypeIni = iota
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CfgFileTypeCmd
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)
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var (
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cfgFile string
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showVersion bool
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serverAddr string
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user string
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protocol string
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token string
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logLevel string
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logFile string
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logMaxDays int
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disableLogColor bool
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proxyName string
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localIP string
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localPort int
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remotePort int
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useEncryption bool
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useCompression bool
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customDomains string
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subDomain string
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httpUser string
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httpPwd string
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locations string
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hostHeaderRewrite string
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role string
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sk string
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multiplexer string
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serverName string
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bindAddr string
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bindPort int
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tlsEnable bool
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kcpDoneCh chan struct{}
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)
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func init() {
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rootCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "./frpc.ini", "config file of frpc")
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rootCmd.PersistentFlags().BoolVarP(&showVersion, "version", "v", false, "version of frpc")
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kcpDoneCh = make(chan struct{})
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}
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func RegisterCommonFlags(cmd *cobra.Command) {
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cmd.PersistentFlags().StringVarP(&serverAddr, "server_addr", "s", "127.0.0.1:7000", "frp server's address")
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cmd.PersistentFlags().StringVarP(&user, "user", "u", "", "user")
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cmd.PersistentFlags().StringVarP(&protocol, "protocol", "p", "tcp", "tcp or kcp or websocket")
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cmd.PersistentFlags().StringVarP(&token, "token", "t", "", "auth token")
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cmd.PersistentFlags().StringVarP(&logLevel, "log_level", "", "info", "log level")
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cmd.PersistentFlags().StringVarP(&logFile, "log_file", "", "console", "console or file path")
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cmd.PersistentFlags().IntVarP(&logMaxDays, "log_max_days", "", 3, "log file reversed days")
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cmd.PersistentFlags().BoolVarP(&disableLogColor, "disable_log_color", "", false, "disable log color in console")
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cmd.PersistentFlags().BoolVarP(&tlsEnable, "tls_enable", "", false, "enable frpc tls")
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}
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var rootCmd = &cobra.Command{
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Use: "frpc",
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Short: "frpc is the client of frp (https://github.com/fatedier/frp)",
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RunE: func(cmd *cobra.Command, args []string) error {
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if showVersion {
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fmt.Println(version.Full())
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return nil
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}
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// Do not show command usage here.
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err := runClient(cfgFile)
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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return nil
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},
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}
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func Execute() {
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if err := rootCmd.Execute(); err != nil {
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os.Exit(1)
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}
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}
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func handleSignal(svr *client.Service) {
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ch := make(chan os.Signal)
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signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM)
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<-ch
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svr.Close()
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time.Sleep(250 * time.Millisecond)
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close(kcpDoneCh)
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}
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func parseClientCommonCfgFromCmd() (cfg config.ClientCommonConf, err error) {
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cfg = config.GetDefaultClientConf()
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ipStr, portStr, err := net.SplitHostPort(serverAddr)
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if err != nil {
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err = fmt.Errorf("invalid server_addr: %v", err)
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return
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}
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cfg.ServerAddr = ipStr
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cfg.ServerPort, err = strconv.Atoi(portStr)
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if err != nil {
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err = fmt.Errorf("invalid server_addr: %v", err)
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return
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}
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cfg.User = user
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cfg.Protocol = protocol
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cfg.LogLevel = logLevel
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cfg.LogFile = logFile
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cfg.LogMaxDays = int64(logMaxDays)
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cfg.DisableLogColor = disableLogColor
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// Only token authentication is supported in cmd mode
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cfg.ClientConfig = auth.GetDefaultClientConf()
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cfg.Token = token
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cfg.TLSEnable = tlsEnable
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cfg.Complete()
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if err = cfg.Validate(); err != nil {
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err = fmt.Errorf("Parse config error: %v", err)
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return
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}
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return
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}
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func runClient(cfgFilePath string) error {
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cfg, pxyCfgs, visitorCfgs, err := config.ParseClientConfig(cfgFilePath)
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if err != nil {
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return err
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}
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return startService(cfg, pxyCfgs, visitorCfgs, cfgFilePath)
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}
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func startService(
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cfg config.ClientCommonConf,
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pxyCfgs map[string]config.ProxyConf,
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visitorCfgs map[string]config.VisitorConf,
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cfgFile string,
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) (err error) {
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log.InitLog(cfg.LogWay, cfg.LogFile, cfg.LogLevel,
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cfg.LogMaxDays, cfg.DisableLogColor)
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if cfg.DNSServer != "" {
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s := cfg.DNSServer
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if !strings.Contains(s, ":") {
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s += ":53"
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}
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// Change default dns server for frpc
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net.DefaultResolver = &net.Resolver{
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PreferGo: true,
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Dial: func(ctx context.Context, network, address string) (net.Conn, error) {
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return net.Dial("udp", s)
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},
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}
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}
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svr, errRet := client.NewService(cfg, pxyCfgs, visitorCfgs, cfgFile)
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if errRet != nil {
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err = errRet
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return
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}
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// Capture the exit signal if we use kcp.
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if cfg.Protocol == "kcp" {
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go handleSignal(svr)
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}
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err = svr.Run()
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if err == nil && cfg.Protocol == "kcp" {
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<-kcpDoneCh
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}
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return
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}
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