mirror of
https://github.com/apernet/hysteria.git
synced 2025-04-03 04:27:39 +03:00
453 lines
14 KiB
Go
453 lines
14 KiB
Go
package main
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import (
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"crypto/tls"
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"crypto/x509"
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"errors"
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"io"
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"io/ioutil"
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"net"
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"net/http"
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"os"
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"time"
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hyHTTP "github.com/apernet/hysteria/app/http"
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"github.com/apernet/hysteria/app/redirect"
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"github.com/apernet/hysteria/app/relay"
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"github.com/apernet/hysteria/app/socks5"
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"github.com/apernet/hysteria/app/tproxy"
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"github.com/apernet/hysteria/core/pktconns"
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"github.com/apernet/hysteria/core/pmtud"
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"github.com/oschwald/geoip2-golang"
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"github.com/yosuke-furukawa/json5/encoding/json5"
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"github.com/apernet/hysteria/core/acl"
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"github.com/apernet/hysteria/core/cs"
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"github.com/apernet/hysteria/core/transport"
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"github.com/lucas-clemente/quic-go"
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"github.com/sirupsen/logrus"
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)
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var clientPacketConnFuncFactoryMap = map[string]pktconns.ClientPacketConnFuncFactory{
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"": pktconns.NewClientUDPConnFunc,
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"udp": pktconns.NewClientUDPConnFunc,
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// "wechat": pktconns.NewClientWeChatConnFunc,
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// "wechat-video": pktconns.NewClientWeChatConnFunc,
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// "faketcp": pktconns.NewClientFakeTCPConnFunc,
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}
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func client(config *clientConfig) {
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logrus.WithField("config", config.String()).Info("Client configuration loaded")
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config.Fill() // Fill default values
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// Resolver
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if len(config.Resolver) > 0 {
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err := setResolver(config.Resolver)
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if err != nil {
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logrus.WithFields(logrus.Fields{
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"error": err,
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}).Fatal("Failed to set resolver")
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}
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}
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// TLS
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tlsConfig := &tls.Config{
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NextProtos: []string{config.ALPN},
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ServerName: config.ServerName,
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InsecureSkipVerify: config.Insecure,
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MinVersion: tls.VersionTLS13,
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}
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// Load CA
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if len(config.CustomCA) > 0 {
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bs, err := ioutil.ReadFile(config.CustomCA)
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if err != nil {
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logrus.WithFields(logrus.Fields{
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"error": err,
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"file": config.CustomCA,
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}).Fatal("Failed to load CA")
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}
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cp := x509.NewCertPool()
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if !cp.AppendCertsFromPEM(bs) {
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logrus.WithFields(logrus.Fields{
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"file": config.CustomCA,
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}).Fatal("Failed to parse CA")
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}
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tlsConfig.RootCAs = cp
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}
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// QUIC config
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quicConfig := &quic.Config{
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InitialStreamReceiveWindow: config.ReceiveWindowConn,
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MaxStreamReceiveWindow: config.ReceiveWindowConn,
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InitialConnectionReceiveWindow: config.ReceiveWindow,
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MaxConnectionReceiveWindow: config.ReceiveWindow,
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HandshakeIdleTimeout: time.Duration(config.HandshakeTimeout) * time.Second,
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MaxIdleTimeout: time.Duration(config.IdleTimeout) * time.Second,
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KeepAlivePeriod: time.Duration(config.IdleTimeout) * time.Second * 2 / 5,
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DisablePathMTUDiscovery: config.DisableMTUDiscovery,
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EnableDatagrams: true,
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}
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if !quicConfig.DisablePathMTUDiscovery && pmtud.DisablePathMTUDiscovery {
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logrus.Info("Path MTU Discovery is not yet supported on this platform")
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}
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// Auth
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var auth []byte
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if len(config.Auth) > 0 {
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auth = config.Auth
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} else {
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auth = []byte(config.AuthString)
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}
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// Packet conn
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pktConnFuncFactory := clientPacketConnFuncFactoryMap[config.Protocol]
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if pktConnFuncFactory == nil {
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logrus.WithFields(logrus.Fields{
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"protocol": config.Protocol,
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}).Fatal("Unsupported protocol")
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}
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pktConnFunc := pktConnFuncFactory(config.Obfs, time.Duration(config.HopInterval)*time.Second)
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// Resolve preference
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if len(config.ResolvePreference) > 0 {
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pref, err := transport.ResolvePreferenceFromString(config.ResolvePreference)
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if err != nil {
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logrus.WithFields(logrus.Fields{
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"error": err,
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}).Fatal("Failed to parse the resolve preference")
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}
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transport.DefaultClientTransport.ResolvePreference = pref
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}
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// ACL
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var aclEngine *acl.Engine
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if len(config.ACL) > 0 {
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var err error
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aclEngine, err = acl.LoadFromFile(config.ACL, transport.DefaultClientTransport.ResolveIPAddr,
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func() (*geoip2.Reader, error) {
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return loadMMDBReader(config.MMDB)
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})
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if err != nil {
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logrus.WithFields(logrus.Fields{
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"error": err,
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"file": config.ACL,
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}).Fatal("Failed to parse ACL")
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}
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}
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// Client
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var client *cs.Client
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try := 0
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up, down, _ := config.Speed()
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for {
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try += 1
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c, err := cs.NewClient(config.Server, auth, tlsConfig, quicConfig, pktConnFunc, up, down, config.FastOpen,
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func(err error) {
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if config.QuitOnDisconnect {
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logrus.WithFields(logrus.Fields{
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"addr": config.Server,
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"error": err,
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}).Fatal("Connection to server lost, exiting...")
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} else {
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logrus.WithFields(logrus.Fields{
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"addr": config.Server,
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"error": err,
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}).Error("Connection to server lost, reconnecting...")
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}
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})
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if err != nil {
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logrus.WithField("error", err).Error("Failed to initialize client")
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if try <= config.Retry || config.Retry < 0 {
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logrus.WithFields(logrus.Fields{
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"retry": try,
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"interval": config.RetryInterval,
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}).Info("Retrying...")
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time.Sleep(time.Duration(config.RetryInterval) * time.Second)
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} else {
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logrus.Fatal("Out of retries, exiting...")
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}
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} else {
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client = c
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break
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}
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}
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defer client.Close()
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logrus.WithField("addr", config.Server).Info("Connected")
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// Local
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errChan := make(chan error)
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if len(config.SOCKS5.Listen) > 0 {
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go func() {
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var authFunc func(user, password string) bool
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if config.SOCKS5.User != "" && config.SOCKS5.Password != "" {
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authFunc = func(user, password string) bool {
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return config.SOCKS5.User == user && config.SOCKS5.Password == password
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}
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}
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socks5server, err := socks5.NewServer(client, transport.DefaultClientTransport, config.SOCKS5.Listen,
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authFunc, time.Duration(config.SOCKS5.Timeout)*time.Second, aclEngine, config.SOCKS5.DisableUDP,
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func(addr net.Addr, reqAddr string, action acl.Action, arg string) {
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logrus.WithFields(logrus.Fields{
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"action": actionToString(action, arg),
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"src": defaultIPMasker.Mask(addr.String()),
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"dst": defaultIPMasker.Mask(reqAddr),
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}).Debug("SOCKS5 TCP request")
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},
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func(addr net.Addr, reqAddr string, err error) {
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if err != io.EOF {
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logrus.WithFields(logrus.Fields{
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"error": err,
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"src": defaultIPMasker.Mask(addr.String()),
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"dst": defaultIPMasker.Mask(reqAddr),
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}).Info("SOCKS5 TCP error")
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} else {
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logrus.WithFields(logrus.Fields{
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"src": defaultIPMasker.Mask(addr.String()),
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"dst": defaultIPMasker.Mask(reqAddr),
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}).Debug("SOCKS5 TCP EOF")
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}
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},
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func(addr net.Addr) {
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logrus.WithFields(logrus.Fields{
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"src": defaultIPMasker.Mask(addr.String()),
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}).Debug("SOCKS5 UDP associate")
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},
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func(addr net.Addr, err error) {
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if err != io.EOF {
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logrus.WithFields(logrus.Fields{
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"error": err,
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"src": defaultIPMasker.Mask(addr.String()),
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}).Info("SOCKS5 UDP error")
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} else {
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logrus.WithFields(logrus.Fields{
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"src": defaultIPMasker.Mask(addr.String()),
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}).Debug("SOCKS5 UDP EOF")
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}
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})
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if err != nil {
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logrus.WithField("error", err).Fatal("Failed to initialize SOCKS5 server")
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}
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logrus.WithField("addr", config.SOCKS5.Listen).Info("SOCKS5 server up and running")
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errChan <- socks5server.ListenAndServe()
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}()
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}
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if len(config.HTTP.Listen) > 0 {
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go func() {
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var authFunc func(user, password string) bool
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if config.HTTP.User != "" && config.HTTP.Password != "" {
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authFunc = func(user, password string) bool {
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return config.HTTP.User == user && config.HTTP.Password == password
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}
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}
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proxy, err := hyHTTP.NewProxyHTTPServer(client, transport.DefaultClientTransport,
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time.Duration(config.HTTP.Timeout)*time.Second, aclEngine, authFunc,
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func(reqAddr string, action acl.Action, arg string) {
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logrus.WithFields(logrus.Fields{
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"action": actionToString(action, arg),
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"dst": defaultIPMasker.Mask(reqAddr),
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}).Debug("HTTP request")
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},
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func(reqAddr string, err error) {
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logrus.WithFields(logrus.Fields{
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"error": err,
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"dst": defaultIPMasker.Mask(reqAddr),
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}).Info("HTTP error")
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})
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if err != nil {
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logrus.WithField("error", err).Fatal("Failed to initialize HTTP server")
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}
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if config.HTTP.Cert != "" && config.HTTP.Key != "" {
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logrus.WithField("addr", config.HTTP.Listen).Info("HTTPS server up and running")
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errChan <- http.ListenAndServeTLS(config.HTTP.Listen, config.HTTP.Cert, config.HTTP.Key, proxy)
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} else {
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logrus.WithField("addr", config.HTTP.Listen).Info("HTTP server up and running")
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errChan <- http.ListenAndServe(config.HTTP.Listen, proxy)
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}
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}()
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}
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if len(config.TUN.Name) != 0 {
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go startTUN(config, client, errChan)
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}
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if len(config.TCPRelay.Listen) > 0 {
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config.TCPRelays = append(config.TCPRelays, Relay{
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Listen: config.TCPRelay.Listen,
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Remote: config.TCPRelay.Remote,
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Timeout: config.TCPRelay.Timeout,
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})
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}
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if len(config.TCPRelays) > 0 {
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for _, tcpr := range config.TCPRelays {
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go func(tcpr Relay) {
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rl, err := relay.NewTCPRelay(client, tcpr.Listen, tcpr.Remote,
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time.Duration(tcpr.Timeout)*time.Second,
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func(addr net.Addr) {
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logrus.WithFields(logrus.Fields{
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"src": defaultIPMasker.Mask(addr.String()),
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}).Debug("TCP relay request")
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},
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func(addr net.Addr, err error) {
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if err != io.EOF {
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logrus.WithFields(logrus.Fields{
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"error": err,
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"src": defaultIPMasker.Mask(addr.String()),
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}).Info("TCP relay error")
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} else {
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logrus.WithFields(logrus.Fields{
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"src": defaultIPMasker.Mask(addr.String()),
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}).Debug("TCP relay EOF")
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}
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})
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if err != nil {
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logrus.WithField("error", err).Fatal("Failed to initialize TCP relay")
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}
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logrus.WithField("addr", tcpr.Listen).Info("TCP relay up and running")
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errChan <- rl.ListenAndServe()
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}(tcpr)
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}
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}
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if len(config.UDPRelay.Listen) > 0 {
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config.UDPRelays = append(config.UDPRelays, Relay{
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Listen: config.UDPRelay.Listen,
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Remote: config.UDPRelay.Remote,
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Timeout: config.UDPRelay.Timeout,
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})
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}
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if len(config.UDPRelays) > 0 {
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for _, udpr := range config.UDPRelays {
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go func(udpr Relay) {
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rl, err := relay.NewUDPRelay(client, udpr.Listen, udpr.Remote,
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time.Duration(udpr.Timeout)*time.Second,
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func(addr net.Addr) {
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logrus.WithFields(logrus.Fields{
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"src": defaultIPMasker.Mask(addr.String()),
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}).Debug("UDP relay request")
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},
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func(addr net.Addr, err error) {
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if err != relay.ErrTimeout {
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logrus.WithFields(logrus.Fields{
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"error": err,
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"src": defaultIPMasker.Mask(addr.String()),
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}).Info("UDP relay error")
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} else {
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logrus.WithFields(logrus.Fields{
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"src": defaultIPMasker.Mask(addr.String()),
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}).Debug("UDP relay session closed")
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}
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})
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if err != nil {
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logrus.WithField("error", err).Fatal("Failed to initialize UDP relay")
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}
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logrus.WithField("addr", udpr.Listen).Info("UDP relay up and running")
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errChan <- rl.ListenAndServe()
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}(udpr)
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}
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}
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if len(config.TCPTProxy.Listen) > 0 {
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go func() {
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rl, err := tproxy.NewTCPTProxy(client, config.TCPTProxy.Listen,
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time.Duration(config.TCPTProxy.Timeout)*time.Second,
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func(addr, reqAddr net.Addr) {
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logrus.WithFields(logrus.Fields{
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"src": defaultIPMasker.Mask(addr.String()),
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"dst": defaultIPMasker.Mask(reqAddr.String()),
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}).Debug("TCP TProxy request")
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},
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func(addr, reqAddr net.Addr, err error) {
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if err != io.EOF {
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logrus.WithFields(logrus.Fields{
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"error": err,
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"src": defaultIPMasker.Mask(addr.String()),
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"dst": defaultIPMasker.Mask(reqAddr.String()),
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}).Info("TCP TProxy error")
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} else {
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logrus.WithFields(logrus.Fields{
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"src": defaultIPMasker.Mask(addr.String()),
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"dst": defaultIPMasker.Mask(reqAddr.String()),
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}).Debug("TCP TProxy EOF")
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}
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})
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if err != nil {
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logrus.WithField("error", err).Fatal("Failed to initialize TCP TProxy")
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}
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logrus.WithField("addr", config.TCPTProxy.Listen).Info("TCP TProxy up and running")
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errChan <- rl.ListenAndServe()
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}()
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}
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if len(config.UDPTProxy.Listen) > 0 {
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go func() {
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rl, err := tproxy.NewUDPTProxy(client, config.UDPTProxy.Listen,
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time.Duration(config.UDPTProxy.Timeout)*time.Second,
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func(addr, reqAddr net.Addr) {
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logrus.WithFields(logrus.Fields{
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"src": defaultIPMasker.Mask(addr.String()),
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"dst": defaultIPMasker.Mask(reqAddr.String()),
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}).Debug("UDP TProxy request")
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},
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func(addr, reqAddr net.Addr, err error) {
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if !errors.Is(err, os.ErrDeadlineExceeded) {
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logrus.WithFields(logrus.Fields{
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"error": err,
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"src": defaultIPMasker.Mask(addr.String()),
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"dst": defaultIPMasker.Mask(reqAddr.String()),
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}).Info("UDP TProxy error")
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} else {
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logrus.WithFields(logrus.Fields{
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"src": defaultIPMasker.Mask(addr.String()),
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"dst": defaultIPMasker.Mask(reqAddr.String()),
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}).Debug("UDP TProxy session closed")
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}
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})
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if err != nil {
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logrus.WithField("error", err).Fatal("Failed to initialize UDP TProxy")
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}
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logrus.WithField("addr", config.UDPTProxy.Listen).Info("UDP TProxy up and running")
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errChan <- rl.ListenAndServe()
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}()
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}
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if len(config.TCPRedirect.Listen) > 0 {
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go func() {
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rl, err := redirect.NewTCPRedirect(client, config.TCPRedirect.Listen,
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time.Duration(config.TCPRedirect.Timeout)*time.Second,
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func(addr, reqAddr net.Addr) {
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logrus.WithFields(logrus.Fields{
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"src": defaultIPMasker.Mask(addr.String()),
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"dst": defaultIPMasker.Mask(reqAddr.String()),
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}).Debug("TCP Redirect request")
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},
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func(addr, reqAddr net.Addr, err error) {
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if err != io.EOF {
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logrus.WithFields(logrus.Fields{
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"error": err,
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"src": defaultIPMasker.Mask(addr.String()),
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"dst": defaultIPMasker.Mask(reqAddr.String()),
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}).Info("TCP Redirect error")
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} else {
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logrus.WithFields(logrus.Fields{
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"src": defaultIPMasker.Mask(addr.String()),
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"dst": defaultIPMasker.Mask(reqAddr.String()),
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}).Debug("TCP Redirect EOF")
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}
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})
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if err != nil {
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logrus.WithField("error", err).Fatal("Failed to initialize TCP Redirect")
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}
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logrus.WithField("addr", config.TCPRedirect.Listen).Info("TCP Redirect up and running")
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errChan <- rl.ListenAndServe()
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}()
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}
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err := <-errChan
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logrus.WithField("error", err).Fatal("Client shutdown")
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}
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func parseClientConfig(cb []byte) (*clientConfig, error) {
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var c clientConfig
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err := json5.Unmarshal(cb, &c)
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if err != nil {
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return nil, err
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}
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return &c, c.Check()
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}
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