Xray-core/infra/conf/transport_internet.go

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package conf
import (
"encoding/base64"
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"encoding/json"
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"math"
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"net/url"
"strconv"
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"strings"
"github.com/golang/protobuf/proto"
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"github.com/xtls/xray-core/common/platform/filesystem"
"github.com/xtls/xray-core/common/protocol"
"github.com/xtls/xray-core/common/serial"
"github.com/xtls/xray-core/transport/internet"
"github.com/xtls/xray-core/transport/internet/domainsocket"
httpheader "github.com/xtls/xray-core/transport/internet/headers/http"
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"github.com/xtls/xray-core/transport/internet/http"
"github.com/xtls/xray-core/transport/internet/kcp"
"github.com/xtls/xray-core/transport/internet/quic"
"github.com/xtls/xray-core/transport/internet/tcp"
"github.com/xtls/xray-core/transport/internet/tls"
"github.com/xtls/xray-core/transport/internet/websocket"
"github.com/xtls/xray-core/transport/internet/xtls"
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)
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) },
}, "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, newError("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, newError("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, newError("invalid mKCP header config.").Base(err).AtError()
}
ts, err := headerConfig.(Buildable).Build()
if err != nil {
return nil, newError("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, newError("invalid TCP header config").Base(err).AtError()
}
ts, err := headerConfig.(Buildable).Build()
if err != nil {
return nil, newError("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 {
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
header := make([]*websocket.Header, 0, 32)
for key, value := range c.Headers {
header = append(header, &websocket.Header{
Key: key,
Value: value,
})
}
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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()
}
}
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config := &websocket.Config{
Path: path,
Header: header,
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Ed: ed,
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}
if c.AcceptProxyProtocol {
config.AcceptProxyProtocol = c.AcceptProxyProtocol
}
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"`
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}
// Build implements Buildable.
func (c *HTTPConfig) Build() (proto.Message, error) {
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if c.ReadIdleTimeout <= 0 {
c.ReadIdleTimeout = 0
}
if c.HealthCheckTimeout <= 0 {
c.HealthCheckTimeout = 0
}
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config := &http.Config{
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Path: c.Path,
IdleTimeout: c.ReadIdleTimeout,
HealthCheckTimeout: c.HealthCheckTimeout,
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}
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, newError("empty HTTP header value: " + key).AtError()
}
config.Header = append(config.Header, &httpheader.Header{
Name: key,
Value: append([]string(nil), (*value)...),
})
}
}
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return config, nil
}
type QUICConfig struct {
Header json.RawMessage `json:"header"`
Security string `json:"security"`
Key string `json:"key"`
}
// Build implements Buildable.
func (c *QUICConfig) Build() (proto.Message, error) {
config := &quic.Config{
Key: c.Key,
}
if len(c.Header) > 0 {
headerConfig, _, err := kcpHeaderLoader.Load(c.Header)
if err != nil {
return nil, newError("invalid QUIC header config.").Base(err).AtError()
}
ts, err := headerConfig.(Buildable).Build()
if err != nil {
return nil, newError("invalid QUIC header config").Base(err).AtError()
}
config.Header = serial.ToTypedMessage(ts)
}
var st protocol.SecurityType
switch strings.ToLower(c.Security) {
case "aes-128-gcm":
st = protocol.SecurityType_AES128_GCM
case "chacha20-poly1305":
st = protocol.SecurityType_CHACHA20_POLY1305
default:
st = protocol.SecurityType_NONE
}
config.Security = &protocol.SecurityConfig{
Type: st,
}
return config, nil
}
type DomainSocketConfig struct {
Path string `json:"path"`
Abstract bool `json:"abstract"`
Padding bool `json:"padding"`
}
// Build implements Buildable.
func (c *DomainSocketConfig) Build() (proto.Message, error) {
return &domainsocket.Config{
Path: c.Path,
Abstract: c.Abstract,
Padding: c.Padding,
}, 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, newError("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"`
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}
// 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, newError("failed to parse certificate").Base(err)
}
certificate.Certificate = cert
certificate.CertificatePath = c.CertFile
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if len(c.KeyFile) > 0 || len(c.KeyStr) > 0 {
key, err := readFileOrString(c.KeyFile, c.KeyStr)
if err != nil {
return nil, newError("failed to parse key").Base(err)
}
certificate.Key = key
certificate.KeyPath = c.KeyFile
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}
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
}
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certificate.OcspStapling = c.OcspStapling
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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"`
PreferServerCipherSuites bool `json:"preferServerCipherSuites"`
Fingerprint string `json:"fingerprint"`
RejectUnknownSNI bool `json:"rejectUnknownSni"`
PinnedPeerCertificateChainSha256 *[]string `json:"pinnedPeerCertificateChainSha256"`
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}
// 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
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config.DisableSystemRoot = c.DisableSystemRoot
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config.MinVersion = c.MinVersion
config.MaxVersion = c.MaxVersion
config.CipherSuites = c.CipherSuites
config.PreferServerCipherSuites = c.PreferServerCipherSuites
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config.Fingerprint = strings.ToLower(c.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)
}
}
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return config, nil
}
type XTLSCertConfig 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"`
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}
// Build implements Buildable.
func (c *XTLSCertConfig) Build() (*xtls.Certificate, error) {
certificate := new(xtls.Certificate)
cert, err := readFileOrString(c.CertFile, c.CertStr)
if err != nil {
return nil, newError("failed to parse certificate").Base(err)
}
certificate.Certificate = cert
certificate.CertificatePath = c.CertFile
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if len(c.KeyFile) > 0 || len(c.KeyStr) > 0 {
key, err := readFileOrString(c.KeyFile, c.KeyStr)
if err != nil {
return nil, newError("failed to parse key").Base(err)
}
certificate.Key = key
certificate.KeyPath = c.KeyFile
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}
switch strings.ToLower(c.Usage) {
case "encipherment":
certificate.Usage = xtls.Certificate_ENCIPHERMENT
case "verify":
certificate.Usage = xtls.Certificate_AUTHORITY_VERIFY
case "issue":
certificate.Usage = xtls.Certificate_AUTHORITY_ISSUE
default:
certificate.Usage = xtls.Certificate_ENCIPHERMENT
}
if certificate.KeyPath == "" && certificate.CertificatePath == "" {
certificate.OneTimeLoading = true
} else {
certificate.OneTimeLoading = c.OneTimeLoading
}
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certificate.OcspStapling = c.OcspStapling
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return certificate, nil
}
type XTLSConfig struct {
Insecure bool `json:"allowInsecure"`
Certs []*XTLSCertConfig `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"`
PreferServerCipherSuites bool `json:"preferServerCipherSuites"`
RejectUnknownSNI bool `json:"rejectUnknownSni"`
PinnedPeerCertificateChainSha256 *[]string `json:"pinnedPeerCertificateChainSha256"`
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}
// Build implements Buildable.
func (c *XTLSConfig) Build() (proto.Message, error) {
config := new(xtls.Config)
config.Certificate = make([]*xtls.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
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config.DisableSystemRoot = c.DisableSystemRoot
config.MinVersion = c.MinVersion
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config.MaxVersion = c.MaxVersion
config.CipherSuites = c.CipherSuites
config.PreferServerCipherSuites = c.PreferServerCipherSuites
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)
}
}
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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 "ds", "domainsocket":
return "domainsocket", nil
case "quic":
return "quic", nil
case "grpc", "gun":
return "grpc", nil
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default:
return "", newError("Config: unknown transport protocol: ", p)
}
}
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"`
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}
// Build implements Buildable.
func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
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tfo := int32(0) // don't invoke setsockopt() for TFO
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if c.TFO != nil {
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switch v := c.TFO.(type) {
case bool:
if v {
tfo = 256
} else {
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tfo = -1 // TFO need to be disabled
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}
case float64:
tfo = int32(math.Min(v, math.MaxInt32))
default:
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return nil, newError("tcpFastOpen: only boolean and integer value is acceptable")
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}
}
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
}
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dStrategy := internet.DomainStrategy_AS_IS
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switch strings.ToLower(c.DomainStrategy) {
case "useip", "use_ip":
dStrategy = internet.DomainStrategy_USE_IP
case "useip4", "useipv4", "use_ipv4", "use_ip_v4", "use_ip4":
dStrategy = internet.DomainStrategy_USE_IP4
case "useip6", "useipv6", "use_ipv6", "use_ip_v6", "use_ip6":
dStrategy = internet.DomainStrategy_USE_IP6
}
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return &internet.SocketConfig{
Mark: c.Mark,
Tfo: tfo,
Tproxy: tproxy,
DomainStrategy: dStrategy,
AcceptProxyProtocol: c.AcceptProxyProtocol,
DialerProxy: c.DialerProxy,
TcpKeepAliveInterval: c.TCPKeepAliveInterval,
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}, nil
}
type StreamConfig struct {
Network *TransportProtocol `json:"network"`
Security string `json:"security"`
TLSSettings *TLSConfig `json:"tlsSettings"`
XTLSSettings *XTLSConfig `json:"xtlsSettings"`
TCPSettings *TCPConfig `json:"tcpSettings"`
KCPSettings *KCPConfig `json:"kcpSettings"`
WSSettings *WebSocketConfig `json:"wsSettings"`
HTTPSettings *HTTPConfig `json:"httpSettings"`
DSSettings *DomainSocketConfig `json:"dsSettings"`
QUICSettings *QUICConfig `json:"quicSettings"`
SocketSettings *SocketConfig `json:"sockopt"`
GRPCConfig *GRPCConfig `json:"grpcSettings"`
GUNConfig *GRPCConfig `json:"gunSettings"`
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}
// 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
}
if strings.EqualFold(c.Security, "tls") {
tlsSettings := c.TLSSettings
if tlsSettings == nil {
if c.XTLSSettings != nil {
return nil, newError(`TLS: Please use "tlsSettings" instead of "xtlsSettings".`)
}
tlsSettings = &TLSConfig{}
}
ts, err := tlsSettings.Build()
if err != nil {
return nil, newError("Failed to build TLS config.").Base(err)
}
tm := serial.ToTypedMessage(ts)
config.SecuritySettings = append(config.SecuritySettings, tm)
config.SecurityType = tm.Type
}
if strings.EqualFold(c.Security, "xtls") {
if config.ProtocolName != "tcp" && config.ProtocolName != "mkcp" && config.ProtocolName != "domainsocket" {
return nil, newError("XTLS only supports TCP, mKCP and DomainSocket for now.")
}
xtlsSettings := c.XTLSSettings
if xtlsSettings == nil {
if c.TLSSettings != nil {
return nil, newError(`XTLS: Please use "xtlsSettings" instead of "tlsSettings".`)
}
xtlsSettings = &XTLSConfig{}
}
ts, err := xtlsSettings.Build()
if err != nil {
return nil, newError("Failed to build XTLS config.").Base(err)
}
tm := serial.ToTypedMessage(ts)
config.SecuritySettings = append(config.SecuritySettings, tm)
config.SecurityType = tm.Type
}
if c.TCPSettings != nil {
ts, err := c.TCPSettings.Build()
if err != nil {
return nil, newError("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, newError("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, newError("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, newError("Failed to build HTTP config.").Base(err)
}
config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{
ProtocolName: "http",
Settings: serial.ToTypedMessage(ts),
})
}
if c.DSSettings != nil {
ds, err := c.DSSettings.Build()
if err != nil {
return nil, newError("Failed to build DomainSocket config.").Base(err)
}
config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{
ProtocolName: "domainsocket",
Settings: serial.ToTypedMessage(ds),
})
}
if c.QUICSettings != nil {
qs, err := c.QUICSettings.Build()
if err != nil {
return nil, newError("Failed to build QUIC config").Base(err)
}
config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{
ProtocolName: "quic",
Settings: serial.ToTypedMessage(qs),
})
}
if c.GRPCConfig == nil {
c.GRPCConfig = c.GUNConfig
}
if c.GRPCConfig != nil {
gs, err := c.GRPCConfig.Build()
if err != nil {
return nil, newError("Failed to build gRPC config.").Base(err)
}
config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{
ProtocolName: "grpc",
Settings: serial.ToTypedMessage(gs),
})
}
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if c.SocketSettings != nil {
ss, err := c.SocketSettings.Build()
if err != nil {
return nil, newError("Failed to build sockopt").Base(err)
}
config.SocketSettings = ss
}
return config, nil
}
type ProxyConfig struct {
Tag string `json:"tag"`
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// TransportLayerProxy: For compatibility.
TransportLayerProxy bool `json:"transportLayer"`
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}
// Build implements Buildable.
func (v *ProxyConfig) Build() (*internet.ProxyConfig, error) {
if v.Tag == "" {
return nil, newError("Proxy tag is not set.")
}
return &internet.ProxyConfig{
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Tag: v.Tag,
TransportLayerProxy: v.TransportLayerProxy,
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}, nil
}