package conf import ( "encoding/base64" "encoding/hex" "encoding/json" "math" "net/url" "runtime" "strconv" "strings" "syscall" "github.com/xtls/xray-core/common/errors" "github.com/xtls/xray-core/common/net" "github.com/xtls/xray-core/common/platform/filesystem" "github.com/xtls/xray-core/common/serial" "github.com/xtls/xray-core/transport/internet" httpheader "github.com/xtls/xray-core/transport/internet/headers/http" "github.com/xtls/xray-core/transport/internet/http" "github.com/xtls/xray-core/transport/internet/httpupgrade" "github.com/xtls/xray-core/transport/internet/kcp" "github.com/xtls/xray-core/transport/internet/reality" "github.com/xtls/xray-core/transport/internet/splithttp" "github.com/xtls/xray-core/transport/internet/tcp" "github.com/xtls/xray-core/transport/internet/tls" "github.com/xtls/xray-core/transport/internet/websocket" "google.golang.org/protobuf/proto" ) var ( kcpHeaderLoader = NewJSONConfigLoader(ConfigCreatorCache{ "none": func() interface{} { return new(NoOpAuthenticator) }, "srtp": func() interface{} { return new(SRTPAuthenticator) }, "utp": func() interface{} { return new(UTPAuthenticator) }, "wechat-video": func() interface{} { return new(WechatVideoAuthenticator) }, "dtls": func() interface{} { return new(DTLSAuthenticator) }, "wireguard": func() interface{} { return new(WireguardAuthenticator) }, "dns": func() interface{} { return new(DNSAuthenticator) }, }, "type", "") tcpHeaderLoader = NewJSONConfigLoader(ConfigCreatorCache{ "none": func() interface{} { return new(NoOpConnectionAuthenticator) }, "http": func() interface{} { return new(Authenticator) }, }, "type", "") ) type KCPConfig struct { Mtu *uint32 `json:"mtu"` Tti *uint32 `json:"tti"` UpCap *uint32 `json:"uplinkCapacity"` DownCap *uint32 `json:"downlinkCapacity"` Congestion *bool `json:"congestion"` ReadBufferSize *uint32 `json:"readBufferSize"` WriteBufferSize *uint32 `json:"writeBufferSize"` HeaderConfig json.RawMessage `json:"header"` Seed *string `json:"seed"` } // Build implements Buildable. func (c *KCPConfig) Build() (proto.Message, error) { config := new(kcp.Config) if c.Mtu != nil { mtu := *c.Mtu if mtu < 576 || mtu > 1460 { return nil, errors.New("invalid mKCP MTU size: ", mtu).AtError() } config.Mtu = &kcp.MTU{Value: mtu} } if c.Tti != nil { tti := *c.Tti if tti < 10 || tti > 100 { return nil, errors.New("invalid mKCP TTI: ", tti).AtError() } config.Tti = &kcp.TTI{Value: tti} } if c.UpCap != nil { config.UplinkCapacity = &kcp.UplinkCapacity{Value: *c.UpCap} } if c.DownCap != nil { config.DownlinkCapacity = &kcp.DownlinkCapacity{Value: *c.DownCap} } if c.Congestion != nil { config.Congestion = *c.Congestion } if c.ReadBufferSize != nil { size := *c.ReadBufferSize if size > 0 { config.ReadBuffer = &kcp.ReadBuffer{Size: size * 1024 * 1024} } else { config.ReadBuffer = &kcp.ReadBuffer{Size: 512 * 1024} } } if c.WriteBufferSize != nil { size := *c.WriteBufferSize if size > 0 { config.WriteBuffer = &kcp.WriteBuffer{Size: size * 1024 * 1024} } else { config.WriteBuffer = &kcp.WriteBuffer{Size: 512 * 1024} } } if len(c.HeaderConfig) > 0 { headerConfig, _, err := kcpHeaderLoader.Load(c.HeaderConfig) if err != nil { return nil, errors.New("invalid mKCP header config.").Base(err).AtError() } ts, err := headerConfig.(Buildable).Build() if err != nil { return nil, errors.New("invalid mKCP header config").Base(err).AtError() } config.HeaderConfig = serial.ToTypedMessage(ts) } if c.Seed != nil { config.Seed = &kcp.EncryptionSeed{Seed: *c.Seed} } return config, nil } type TCPConfig struct { HeaderConfig json.RawMessage `json:"header"` AcceptProxyProtocol bool `json:"acceptProxyProtocol"` } // Build implements Buildable. func (c *TCPConfig) Build() (proto.Message, error) { config := new(tcp.Config) if len(c.HeaderConfig) > 0 { headerConfig, _, err := tcpHeaderLoader.Load(c.HeaderConfig) if err != nil { return nil, errors.New("invalid TCP header config").Base(err).AtError() } ts, err := headerConfig.(Buildable).Build() if err != nil { return nil, errors.New("invalid TCP header config").Base(err).AtError() } config.HeaderSettings = serial.ToTypedMessage(ts) } if c.AcceptProxyProtocol { config.AcceptProxyProtocol = c.AcceptProxyProtocol } return config, nil } type WebSocketConfig struct { Host string `json:"host"` Path string `json:"path"` Headers map[string]string `json:"headers"` AcceptProxyProtocol bool `json:"acceptProxyProtocol"` } // Build implements Buildable. func (c *WebSocketConfig) Build() (proto.Message, error) { path := c.Path var ed uint32 if u, err := url.Parse(path); err == nil { if q := u.Query(); q.Get("ed") != "" { Ed, _ := strconv.Atoi(q.Get("ed")) ed = uint32(Ed) q.Del("ed") u.RawQuery = q.Encode() path = u.String() } } // If http host is not set in the Host field, but in headers field, we add it to Host Field here. // If we don't do that, http host will be overwritten as address. // Host priority: Host field > headers field > address. if c.Host == "" && c.Headers["host"] != "" { c.Host = c.Headers["host"] } else if c.Host == "" && c.Headers["Host"] != "" { c.Host = c.Headers["Host"] } config := &websocket.Config{ Path: path, Host: c.Host, Header: c.Headers, AcceptProxyProtocol: c.AcceptProxyProtocol, Ed: ed, } return config, nil } type HttpUpgradeConfig struct { Host string `json:"host"` Path string `json:"path"` Headers map[string]string `json:"headers"` AcceptProxyProtocol bool `json:"acceptProxyProtocol"` } // Build implements Buildable. func (c *HttpUpgradeConfig) Build() (proto.Message, error) { path := c.Path var ed uint32 if u, err := url.Parse(path); err == nil { if q := u.Query(); q.Get("ed") != "" { Ed, _ := strconv.Atoi(q.Get("ed")) ed = uint32(Ed) q.Del("ed") u.RawQuery = q.Encode() path = u.String() } } // If http host is not set in the Host field, but in headers field, we add it to Host Field here. // If we don't do that, http host will be overwritten as address. // Host priority: Host field > headers field > address. if c.Host == "" && c.Headers["host"] != "" { c.Host = c.Headers["host"] delete(c.Headers, "host") } else if c.Host == "" && c.Headers["Host"] != "" { c.Host = c.Headers["Host"] delete(c.Headers, "Host") } config := &httpupgrade.Config{ Path: path, Host: c.Host, Header: c.Headers, AcceptProxyProtocol: c.AcceptProxyProtocol, Ed: ed, } return config, nil } type SplitHTTPConfig struct { Host string `json:"host"` Path string `json:"path"` Headers map[string]string `json:"headers"` ScMaxConcurrentPosts *Int32Range `json:"scMaxConcurrentPosts"` ScMaxEachPostBytes *Int32Range `json:"scMaxEachPostBytes"` ScMinPostsIntervalMs *Int32Range `json:"scMinPostsIntervalMs"` NoSSEHeader bool `json:"noSSEHeader"` XPaddingBytes *Int32Range `json:"xPaddingBytes"` Xmux Xmux `json:"xmux"` } type Xmux struct { MaxConcurrency *Int32Range `json:"maxConcurrency"` MaxConnections *Int32Range `json:"maxConnections"` CMaxReuseTimes *Int32Range `json:"cMaxReuseTimes"` CMaxLifetimeMs *Int32Range `json:"cMaxLifetimeMs"` } func splithttpNewRandRangeConfig(input *Int32Range) *splithttp.RandRangeConfig { if input == nil { return nil } return &splithttp.RandRangeConfig{ From: input.From, To: input.To, } } // Build implements Buildable. func (c *SplitHTTPConfig) Build() (proto.Message, error) { // If http host is not set in the Host field, but in headers field, we add it to Host Field here. // If we don't do that, http host will be overwritten as address. // Host priority: Host field > headers field > address. if c.Host == "" && c.Headers["host"] != "" { c.Host = c.Headers["host"] } else if c.Host == "" && c.Headers["Host"] != "" { c.Host = c.Headers["Host"] } if c.Xmux.MaxConnections != nil && c.Xmux.MaxConnections.To > 0 && c.Xmux.MaxConcurrency != nil && c.Xmux.MaxConcurrency.To > 0 { return nil, errors.New("maxConnections cannot be specified together with maxConcurrency") } // Multiplexing config muxProtobuf := splithttp.Multiplexing{ MaxConcurrency: splithttpNewRandRangeConfig(c.Xmux.MaxConcurrency), MaxConnections: splithttpNewRandRangeConfig(c.Xmux.MaxConnections), CMaxReuseTimes: splithttpNewRandRangeConfig(c.Xmux.CMaxReuseTimes), CMaxLifetimeMs: splithttpNewRandRangeConfig(c.Xmux.CMaxLifetimeMs), } config := &splithttp.Config{ Path: c.Path, Host: c.Host, Header: c.Headers, ScMaxConcurrentPosts: splithttpNewRandRangeConfig(c.ScMaxConcurrentPosts), ScMaxEachPostBytes: splithttpNewRandRangeConfig(c.ScMaxEachPostBytes), ScMinPostsIntervalMs: splithttpNewRandRangeConfig(c.ScMinPostsIntervalMs), NoSSEHeader: c.NoSSEHeader, XPaddingBytes: splithttpNewRandRangeConfig(c.XPaddingBytes), Xmux: &muxProtobuf, } return config, nil } type HTTPConfig struct { Host *StringList `json:"host"` Path string `json:"path"` ReadIdleTimeout int32 `json:"read_idle_timeout"` HealthCheckTimeout int32 `json:"health_check_timeout"` Method string `json:"method"` Headers map[string]*StringList `json:"headers"` } // Build implements Buildable. func (c *HTTPConfig) Build() (proto.Message, error) { if c.ReadIdleTimeout <= 0 { c.ReadIdleTimeout = 0 } if c.HealthCheckTimeout <= 0 { c.HealthCheckTimeout = 0 } config := &http.Config{ Path: c.Path, IdleTimeout: c.ReadIdleTimeout, HealthCheckTimeout: c.HealthCheckTimeout, } if c.Host != nil { config.Host = []string(*c.Host) } if c.Method != "" { config.Method = c.Method } if len(c.Headers) > 0 { config.Header = make([]*httpheader.Header, 0, len(c.Headers)) headerNames := sortMapKeys(c.Headers) for _, key := range headerNames { value := c.Headers[key] if value == nil { return nil, errors.New("empty HTTP header value: " + key).AtError() } config.Header = append(config.Header, &httpheader.Header{ Name: key, Value: append([]string(nil), (*value)...), }) } } return config, nil } func readFileOrString(f string, s []string) ([]byte, error) { if len(f) > 0 { return filesystem.ReadFile(f) } if len(s) > 0 { return []byte(strings.Join(s, "\n")), nil } return nil, errors.New("both file and bytes are empty.") } type TLSCertConfig struct { CertFile string `json:"certificateFile"` CertStr []string `json:"certificate"` KeyFile string `json:"keyFile"` KeyStr []string `json:"key"` Usage string `json:"usage"` OcspStapling uint64 `json:"ocspStapling"` OneTimeLoading bool `json:"oneTimeLoading"` BuildChain bool `json:"buildChain"` } // Build implements Buildable. func (c *TLSCertConfig) Build() (*tls.Certificate, error) { certificate := new(tls.Certificate) cert, err := readFileOrString(c.CertFile, c.CertStr) if err != nil { return nil, errors.New("failed to parse certificate").Base(err) } certificate.Certificate = cert certificate.CertificatePath = c.CertFile if len(c.KeyFile) > 0 || len(c.KeyStr) > 0 { key, err := readFileOrString(c.KeyFile, c.KeyStr) if err != nil { return nil, errors.New("failed to parse key").Base(err) } certificate.Key = key certificate.KeyPath = c.KeyFile } switch strings.ToLower(c.Usage) { case "encipherment": certificate.Usage = tls.Certificate_ENCIPHERMENT case "verify": certificate.Usage = tls.Certificate_AUTHORITY_VERIFY case "issue": certificate.Usage = tls.Certificate_AUTHORITY_ISSUE default: certificate.Usage = tls.Certificate_ENCIPHERMENT } if certificate.KeyPath == "" && certificate.CertificatePath == "" { certificate.OneTimeLoading = true } else { certificate.OneTimeLoading = c.OneTimeLoading } certificate.OcspStapling = c.OcspStapling certificate.BuildChain = c.BuildChain return certificate, nil } type TLSConfig struct { Insecure bool `json:"allowInsecure"` Certs []*TLSCertConfig `json:"certificates"` ServerName string `json:"serverName"` ALPN *StringList `json:"alpn"` EnableSessionResumption bool `json:"enableSessionResumption"` DisableSystemRoot bool `json:"disableSystemRoot"` MinVersion string `json:"minVersion"` MaxVersion string `json:"maxVersion"` CipherSuites string `json:"cipherSuites"` Fingerprint string `json:"fingerprint"` RejectUnknownSNI bool `json:"rejectUnknownSni"` PinnedPeerCertificateChainSha256 *[]string `json:"pinnedPeerCertificateChainSha256"` PinnedPeerCertificatePublicKeySha256 *[]string `json:"pinnedPeerCertificatePublicKeySha256"` MasterKeyLog string `json:"masterKeyLog"` } // Build implements Buildable. func (c *TLSConfig) Build() (proto.Message, error) { config := new(tls.Config) config.Certificate = make([]*tls.Certificate, len(c.Certs)) for idx, certConf := range c.Certs { cert, err := certConf.Build() if err != nil { return nil, err } config.Certificate[idx] = cert } serverName := c.ServerName config.AllowInsecure = c.Insecure if len(c.ServerName) > 0 { config.ServerName = serverName } if c.ALPN != nil && len(*c.ALPN) > 0 { config.NextProtocol = []string(*c.ALPN) } config.EnableSessionResumption = c.EnableSessionResumption config.DisableSystemRoot = c.DisableSystemRoot config.MinVersion = c.MinVersion config.MaxVersion = c.MaxVersion config.CipherSuites = c.CipherSuites config.Fingerprint = strings.ToLower(c.Fingerprint) if config.Fingerprint != "" && tls.GetFingerprint(config.Fingerprint) == nil { return nil, errors.New(`unknown fingerprint: `, config.Fingerprint) } config.RejectUnknownSni = c.RejectUnknownSNI if c.PinnedPeerCertificateChainSha256 != nil { config.PinnedPeerCertificateChainSha256 = [][]byte{} for _, v := range *c.PinnedPeerCertificateChainSha256 { hashValue, err := base64.StdEncoding.DecodeString(v) if err != nil { return nil, err } config.PinnedPeerCertificateChainSha256 = append(config.PinnedPeerCertificateChainSha256, hashValue) } } if c.PinnedPeerCertificatePublicKeySha256 != nil { config.PinnedPeerCertificatePublicKeySha256 = [][]byte{} for _, v := range *c.PinnedPeerCertificatePublicKeySha256 { hashValue, err := base64.StdEncoding.DecodeString(v) if err != nil { return nil, err } config.PinnedPeerCertificatePublicKeySha256 = append(config.PinnedPeerCertificatePublicKeySha256, hashValue) } } config.MasterKeyLog = c.MasterKeyLog return config, nil } type REALITYConfig struct { Show bool `json:"show"` MasterKeyLog string `json:"masterKeyLog"` Dest json.RawMessage `json:"dest"` Type string `json:"type"` Xver uint64 `json:"xver"` ServerNames []string `json:"serverNames"` PrivateKey string `json:"privateKey"` MinClientVer string `json:"minClientVer"` MaxClientVer string `json:"maxClientVer"` MaxTimeDiff uint64 `json:"maxTimeDiff"` ShortIds []string `json:"shortIds"` Fingerprint string `json:"fingerprint"` ServerName string `json:"serverName"` PublicKey string `json:"publicKey"` ShortId string `json:"shortId"` SpiderX string `json:"spiderX"` } func (c *REALITYConfig) Build() (proto.Message, error) { config := new(reality.Config) config.Show = c.Show config.MasterKeyLog = c.MasterKeyLog var err error if c.Dest != nil { var i uint16 var s string if err = json.Unmarshal(c.Dest, &i); err == nil { s = strconv.Itoa(int(i)) } else { _ = json.Unmarshal(c.Dest, &s) } if c.Type == "" && s != "" { switch s[0] { case '@', '/': c.Type = "unix" if s[0] == '@' && len(s) > 1 && s[1] == '@' && (runtime.GOOS == "linux" || runtime.GOOS == "android") { fullAddr := make([]byte, len(syscall.RawSockaddrUnix{}.Path)) // may need padding to work with haproxy copy(fullAddr, s[1:]) s = string(fullAddr) } default: if _, err = strconv.Atoi(s); err == nil { s = "127.0.0.1:" + s } if _, _, err = net.SplitHostPort(s); err == nil { c.Type = "tcp" } } } if c.Type == "" { return nil, errors.New(`please fill in a valid value for "dest"`) } if c.Xver > 2 { return nil, errors.New(`invalid PROXY protocol version, "xver" only accepts 0, 1, 2`) } if len(c.ServerNames) == 0 { return nil, errors.New(`empty "serverNames"`) } if c.PrivateKey == "" { return nil, errors.New(`empty "privateKey"`) } if config.PrivateKey, err = base64.RawURLEncoding.DecodeString(c.PrivateKey); err != nil || len(config.PrivateKey) != 32 { return nil, errors.New(`invalid "privateKey": `, c.PrivateKey) } if c.MinClientVer != "" { config.MinClientVer = make([]byte, 3) var u uint64 for i, s := range strings.Split(c.MinClientVer, ".") { if i == 3 { return nil, errors.New(`invalid "minClientVer": `, c.MinClientVer) } if u, err = strconv.ParseUint(s, 10, 8); err != nil { return nil, errors.New(`"minClientVer[`, i, `]" should be lesser than 256`) } else { config.MinClientVer[i] = byte(u) } } } if c.MaxClientVer != "" { config.MaxClientVer = make([]byte, 3) var u uint64 for i, s := range strings.Split(c.MaxClientVer, ".") { if i == 3 { return nil, errors.New(`invalid "maxClientVer": `, c.MaxClientVer) } if u, err = strconv.ParseUint(s, 10, 8); err != nil { return nil, errors.New(`"maxClientVer[`, i, `]" should be lesser than 256`) } else { config.MaxClientVer[i] = byte(u) } } } if len(c.ShortIds) == 0 { return nil, errors.New(`empty "shortIds"`) } config.ShortIds = make([][]byte, len(c.ShortIds)) for i, s := range c.ShortIds { config.ShortIds[i] = make([]byte, 8) if _, err = hex.Decode(config.ShortIds[i], []byte(s)); err != nil { return nil, errors.New(`invalid "shortIds[`, i, `]": `, s) } } config.Dest = s config.Type = c.Type config.Xver = c.Xver config.ServerNames = c.ServerNames config.MaxTimeDiff = c.MaxTimeDiff } else { if c.Fingerprint == "" { return nil, errors.New(`empty "fingerprint"`) } if config.Fingerprint = strings.ToLower(c.Fingerprint); tls.GetFingerprint(config.Fingerprint) == nil { return nil, errors.New(`unknown "fingerprint": `, config.Fingerprint) } if config.Fingerprint == "hellogolang" { return nil, errors.New(`invalid "fingerprint": `, config.Fingerprint) } if len(c.ServerNames) != 0 { return nil, errors.New(`non-empty "serverNames", please use "serverName" instead`) } if c.PublicKey == "" { return nil, errors.New(`empty "publicKey"`) } if config.PublicKey, err = base64.RawURLEncoding.DecodeString(c.PublicKey); err != nil || len(config.PublicKey) != 32 { return nil, errors.New(`invalid "publicKey": `, c.PublicKey) } if len(c.ShortIds) != 0 { return nil, errors.New(`non-empty "shortIds", please use "shortId" instead`) } config.ShortId = make([]byte, 8) if _, err = hex.Decode(config.ShortId, []byte(c.ShortId)); err != nil { return nil, errors.New(`invalid "shortId": `, c.ShortId) } if c.SpiderX == "" { c.SpiderX = "/" } if c.SpiderX[0] != '/' { return nil, errors.New(`invalid "spiderX": `, c.SpiderX) } config.SpiderY = make([]int64, 10) u, _ := url.Parse(c.SpiderX) q := u.Query() parse := func(param string, index int) { if q.Get(param) != "" { s := strings.Split(q.Get(param), "-") if len(s) == 1 { config.SpiderY[index], _ = strconv.ParseInt(s[0], 10, 64) config.SpiderY[index+1], _ = strconv.ParseInt(s[0], 10, 64) } else { config.SpiderY[index], _ = strconv.ParseInt(s[0], 10, 64) config.SpiderY[index+1], _ = strconv.ParseInt(s[1], 10, 64) } } q.Del(param) } parse("p", 0) // padding parse("c", 2) // concurrency parse("t", 4) // times parse("i", 6) // interval parse("r", 8) // return u.RawQuery = q.Encode() config.SpiderX = u.String() config.ServerName = c.ServerName } return config, nil } type TransportProtocol string // Build implements Buildable. func (p TransportProtocol) Build() (string, error) { switch strings.ToLower(string(p)) { case "tcp": return "tcp", nil case "kcp", "mkcp": return "mkcp", nil case "ws", "websocket": return "websocket", nil case "h2", "http": return "http", nil case "grpc", "gun": return "grpc", nil case "httpupgrade": return "httpupgrade", nil case "splithttp": return "splithttp", nil default: return "", errors.New("Config: unknown transport protocol: ", p) } } type CustomSockoptConfig struct { Level string `json:"level"` Opt string `json:"opt"` Value string `json:"value"` Type string `json:"type"` } type SocketConfig struct { Mark int32 `json:"mark"` TFO interface{} `json:"tcpFastOpen"` TProxy string `json:"tproxy"` AcceptProxyProtocol bool `json:"acceptProxyProtocol"` DomainStrategy string `json:"domainStrategy"` DialerProxy string `json:"dialerProxy"` TCPKeepAliveInterval int32 `json:"tcpKeepAliveInterval"` TCPKeepAliveIdle int32 `json:"tcpKeepAliveIdle"` TCPCongestion string `json:"tcpCongestion"` TCPWindowClamp int32 `json:"tcpWindowClamp"` TCPMaxSeg int32 `json:"tcpMaxSeg"` TcpNoDelay bool `json:"tcpNoDelay"` TCPUserTimeout int32 `json:"tcpUserTimeout"` V6only bool `json:"v6only"` Interface string `json:"interface"` TcpMptcp bool `json:"tcpMptcp"` CustomSockopt []*CustomSockoptConfig `json:"customSockopt"` } // Build implements Buildable. func (c *SocketConfig) Build() (*internet.SocketConfig, error) { tfo := int32(0) // don't invoke setsockopt() for TFO if c.TFO != nil { switch v := c.TFO.(type) { case bool: if v { tfo = 256 } else { tfo = -1 // TFO need to be disabled } case float64: tfo = int32(math.Min(v, math.MaxInt32)) default: return nil, errors.New("tcpFastOpen: only boolean and integer value is acceptable") } } var tproxy internet.SocketConfig_TProxyMode switch strings.ToLower(c.TProxy) { case "tproxy": tproxy = internet.SocketConfig_TProxy case "redirect": tproxy = internet.SocketConfig_Redirect default: tproxy = internet.SocketConfig_Off } dStrategy := internet.DomainStrategy_AS_IS switch strings.ToLower(c.DomainStrategy) { case "asis", "": dStrategy = internet.DomainStrategy_AS_IS case "useip": dStrategy = internet.DomainStrategy_USE_IP case "useipv4": dStrategy = internet.DomainStrategy_USE_IP4 case "useipv6": dStrategy = internet.DomainStrategy_USE_IP6 case "useipv4v6": dStrategy = internet.DomainStrategy_USE_IP46 case "useipv6v4": dStrategy = internet.DomainStrategy_USE_IP64 case "forceip": dStrategy = internet.DomainStrategy_FORCE_IP case "forceipv4": dStrategy = internet.DomainStrategy_FORCE_IP4 case "forceipv6": dStrategy = internet.DomainStrategy_FORCE_IP6 case "forceipv4v6": dStrategy = internet.DomainStrategy_FORCE_IP46 case "forceipv6v4": dStrategy = internet.DomainStrategy_FORCE_IP64 default: return nil, errors.New("unsupported domain strategy: ", c.DomainStrategy) } var customSockopts []*internet.CustomSockopt for _, copt := range c.CustomSockopt { customSockopt := &internet.CustomSockopt{ Level: copt.Level, Opt: copt.Opt, Value: copt.Value, Type: copt.Type, } customSockopts = append(customSockopts, customSockopt) } return &internet.SocketConfig{ Mark: c.Mark, Tfo: tfo, Tproxy: tproxy, DomainStrategy: dStrategy, AcceptProxyProtocol: c.AcceptProxyProtocol, DialerProxy: c.DialerProxy, TcpKeepAliveInterval: c.TCPKeepAliveInterval, TcpKeepAliveIdle: c.TCPKeepAliveIdle, TcpCongestion: c.TCPCongestion, TcpWindowClamp: c.TCPWindowClamp, TcpMaxSeg: c.TCPMaxSeg, TcpNoDelay: c.TcpNoDelay, TcpUserTimeout: c.TCPUserTimeout, V6Only: c.V6only, Interface: c.Interface, TcpMptcp: c.TcpMptcp, CustomSockopt: customSockopts, }, nil } type StreamConfig struct { Network *TransportProtocol `json:"network"` Security string `json:"security"` TLSSettings *TLSConfig `json:"tlsSettings"` REALITYSettings *REALITYConfig `json:"realitySettings"` TCPSettings *TCPConfig `json:"tcpSettings"` KCPSettings *KCPConfig `json:"kcpSettings"` WSSettings *WebSocketConfig `json:"wsSettings"` HTTPSettings *HTTPConfig `json:"httpSettings"` SocketSettings *SocketConfig `json:"sockopt"` GRPCConfig *GRPCConfig `json:"grpcSettings"` GUNConfig *GRPCConfig `json:"gunSettings"` HTTPUPGRADESettings *HttpUpgradeConfig `json:"httpupgradeSettings"` SplitHTTPSettings *SplitHTTPConfig `json:"splithttpSettings"` } // Build implements Buildable. func (c *StreamConfig) Build() (*internet.StreamConfig, error) { config := &internet.StreamConfig{ ProtocolName: "tcp", } if c.Network != nil { protocol, err := c.Network.Build() if err != nil { return nil, err } config.ProtocolName = protocol } switch strings.ToLower(c.Security) { case "", "none": case "tls": tlsSettings := c.TLSSettings if tlsSettings == nil { tlsSettings = &TLSConfig{} } ts, err := tlsSettings.Build() if err != nil { return nil, errors.New("Failed to build TLS config.").Base(err) } tm := serial.ToTypedMessage(ts) config.SecuritySettings = append(config.SecuritySettings, tm) config.SecurityType = tm.Type case "reality": if config.ProtocolName != "tcp" && config.ProtocolName != "http" && config.ProtocolName != "grpc" { return nil, errors.New("REALITY only supports TCP, H2 and gRPC for now.") } if c.REALITYSettings == nil { return nil, errors.New(`REALITY: Empty "realitySettings".`) } ts, err := c.REALITYSettings.Build() if err != nil { return nil, errors.New("Failed to build REALITY config.").Base(err) } tm := serial.ToTypedMessage(ts) config.SecuritySettings = append(config.SecuritySettings, tm) config.SecurityType = tm.Type case "xtls": return nil, errors.PrintRemovedFeatureError(`Legacy XTLS`, `xtls-rprx-vision with TLS or REALITY`) default: return nil, errors.New(`Unknown security "` + c.Security + `".`) } if c.TCPSettings != nil { ts, err := c.TCPSettings.Build() if err != nil { return nil, errors.New("Failed to build TCP config.").Base(err) } config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{ ProtocolName: "tcp", Settings: serial.ToTypedMessage(ts), }) } if c.KCPSettings != nil { ts, err := c.KCPSettings.Build() if err != nil { return nil, errors.New("Failed to build mKCP config.").Base(err) } config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{ ProtocolName: "mkcp", Settings: serial.ToTypedMessage(ts), }) } if c.WSSettings != nil { ts, err := c.WSSettings.Build() if err != nil { return nil, errors.New("Failed to build WebSocket config.").Base(err) } config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{ ProtocolName: "websocket", Settings: serial.ToTypedMessage(ts), }) } if c.HTTPSettings != nil { ts, err := c.HTTPSettings.Build() if err != nil { return nil, errors.New("Failed to build HTTP config.").Base(err) } config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{ ProtocolName: "http", Settings: serial.ToTypedMessage(ts), }) } if c.GRPCConfig == nil { c.GRPCConfig = c.GUNConfig } if c.GRPCConfig != nil { gs, err := c.GRPCConfig.Build() if err != nil { return nil, errors.New("Failed to build gRPC config.").Base(err) } config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{ ProtocolName: "grpc", Settings: serial.ToTypedMessage(gs), }) } if c.HTTPUPGRADESettings != nil { hs, err := c.HTTPUPGRADESettings.Build() if err != nil { return nil, errors.New("Failed to build HttpUpgrade config.").Base(err) } config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{ ProtocolName: "httpupgrade", Settings: serial.ToTypedMessage(hs), }) } if c.SplitHTTPSettings != nil { hs, err := c.SplitHTTPSettings.Build() if err != nil { return nil, errors.New("Failed to build SplitHTTP config.").Base(err) } config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{ ProtocolName: "splithttp", Settings: serial.ToTypedMessage(hs), }) } if c.SocketSettings != nil { ss, err := c.SocketSettings.Build() if err != nil { return nil, errors.New("Failed to build sockopt").Base(err) } config.SocketSettings = ss } return config, nil } type ProxyConfig struct { Tag string `json:"tag"` // TransportLayerProxy: For compatibility. TransportLayerProxy bool `json:"transportLayer"` } // Build implements Buildable. func (v *ProxyConfig) Build() (*internet.ProxyConfig, error) { if v.Tag == "" { return nil, errors.New("Proxy tag is not set.") } return &internet.ProxyConfig{ Tag: v.Tag, TransportLayerProxy: v.TransportLayerProxy, }, nil }