Xray-core/infra/conf/transport_internet.go
RPRX ae62a0fb52 Transport: Remove HTTP
Migrated to XHTTP "stream-one" mode.
2024-12-02 09:56:16 +00:00

962 lines
31 KiB
Go

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"
"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"`
HeartbeatPeriod uint32 `json:"heartbeatPeriod"`
}
// 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,
HeartbeatPeriod: c.HeartbeatPeriod,
}
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"`
DownloadSettings *StreamConfig `json:"downloadSettings"`
Mode string `json:"mode"`
Extra json.RawMessage `json:"extra"`
NoGRPCHeader bool `json:"noGRPCHeader"`
KeepAlivePeriod int64 `json:"keepAlivePeriod"`
}
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 &splithttp.RandRangeConfig{
From: 0,
To: 0,
}
}
return &splithttp.RandRangeConfig{
From: input.From,
To: input.To,
}
}
// Build implements Buildable.
func (c *SplitHTTPConfig) Build() (proto.Message, error) {
if c.Extra != nil {
var extra SplitHTTPConfig
if err := json.Unmarshal(c.Extra, &extra); err != nil {
return nil, errors.New(`Failed to unmarshal "extra".`).Base(err)
}
extra.Host = c.Host
extra.Path = c.Path
extra.Mode = c.Mode
extra.Extra = c.Extra
c = &extra
}
// 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),
}
if muxProtobuf.MaxConcurrency.To == 0 &&
muxProtobuf.MaxConnections.To == 0 &&
muxProtobuf.CMaxReuseTimes.To == 0 &&
muxProtobuf.CMaxLifetimeMs.To == 0 {
muxProtobuf.MaxConcurrency.From = 16
muxProtobuf.MaxConcurrency.To = 32
muxProtobuf.CMaxReuseTimes.From = 64
muxProtobuf.CMaxReuseTimes.To = 128
}
switch c.Mode {
case "":
c.Mode = "auto"
case "auto", "packet-up", "stream-up", "stream-one":
default:
return nil, errors.New("unsupported mode: " + c.Mode)
}
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,
Mode: c.Mode,
NoGRPCHeader: c.NoGRPCHeader,
KeepAlivePeriod: c.KeepAlivePeriod,
}
var err error
if c.DownloadSettings != nil {
if c.Mode == "stream-one" {
return nil, errors.New(`Can not use "downloadSettings" in "stream-one" mode.`)
}
if c.Extra != nil {
c.DownloadSettings.SocketSettings = nil
}
if config.DownloadSettings, err = c.DownloadSettings.Build(); err != nil {
return nil, errors.New(`Failed to build "downloadSettings".`).Base(err)
}
}
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"`
CurvePreferences *StringList `json:"curvePreferences"`
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)
}
if c.CurvePreferences != nil && len(*c.CurvePreferences) > 0 {
config.CurvePreferences = []string(*c.CurvePreferences)
}
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 {
MasterKeyLog string `json:"masterKeyLog"`
Show bool `json:"show"`
Target json.RawMessage `json:"target"`
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.MasterKeyLog = c.MasterKeyLog
config.Show = c.Show
var err error
if c.Target != nil {
c.Dest = c.Target
}
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 "target"`)
}
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 less 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 less 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 "raw", "tcp":
return "tcp", nil
case "xhttp", "splithttp":
return "splithttp", nil
case "kcp", "mkcp":
return "mkcp", nil
case "grpc":
errors.PrintDeprecatedFeatureWarning("gRPC transport (with unnecessary costs, etc.)", "XHTTP stream-up H2")
return "grpc", nil
case "ws", "websocket":
errors.PrintDeprecatedFeatureWarning("WebSocket transport (with ALPN http/1.1, etc.)", "XHTTP H2 & H3")
return "websocket", nil
case "httpupgrade":
errors.PrintDeprecatedFeatureWarning("HTTPUpgrade transport (with ALPN http/1.1, etc.)", "XHTTP H2 & H3")
return "httpupgrade", nil
case "h2", "h3", "http":
return "", errors.PrintRemovedFeatureError("HTTP transport (without header padding, etc.)", "XHTTP stream-one H2 & H3")
case "quic":
return "", errors.PrintRemovedFeatureError("QUIC transport (without web service, etc.)", "XHTTP stream-one H3")
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 {
Address *Address `json:"address"`
Port uint16 `json:"port"`
Network *TransportProtocol `json:"network"`
Security string `json:"security"`
TLSSettings *TLSConfig `json:"tlsSettings"`
REALITYSettings *REALITYConfig `json:"realitySettings"`
RAWSettings *TCPConfig `json:"rawSettings"`
TCPSettings *TCPConfig `json:"tcpSettings"`
XHTTPSettings *SplitHTTPConfig `json:"xhttpSettings"`
SplitHTTPSettings *SplitHTTPConfig `json:"splithttpSettings"`
KCPSettings *KCPConfig `json:"kcpSettings"`
GRPCSettings *GRPCConfig `json:"grpcSettings"`
WSSettings *WebSocketConfig `json:"wsSettings"`
HTTPUPGRADESettings *HttpUpgradeConfig `json:"httpupgradeSettings"`
SocketSettings *SocketConfig `json:"sockopt"`
}
// Build implements Buildable.
func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
config := &internet.StreamConfig{
Port: uint32(c.Port),
ProtocolName: "tcp",
}
if c.Address != nil {
config.Address = c.Address.Build()
}
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 != "splithttp" && config.ProtocolName != "grpc" {
return nil, errors.New("REALITY only supports RAW, XHTTP 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.RAWSettings != nil {
c.TCPSettings = c.RAWSettings
}
if c.TCPSettings != nil {
ts, err := c.TCPSettings.Build()
if err != nil {
return nil, errors.New("Failed to build RAW config.").Base(err)
}
config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{
ProtocolName: "tcp",
Settings: serial.ToTypedMessage(ts),
})
}
if c.XHTTPSettings != nil {
c.SplitHTTPSettings = c.XHTTPSettings
}
if c.SplitHTTPSettings != nil {
hs, err := c.SplitHTTPSettings.Build()
if err != nil {
return nil, errors.New("Failed to build XHTTP config.").Base(err)
}
config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{
ProtocolName: "splithttp",
Settings: serial.ToTypedMessage(hs),
})
}
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.GRPCSettings != nil {
gs, err := c.GRPCSettings.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.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.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.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
}