Add observatory / latestPing balancing strategy

Co-authored-by: Shelikhoo <xiaokangwang@outlook.com>
This commit is contained in:
世界 2021-04-09 05:20:30 +08:00
parent 77d0419aca
commit 5c366db847
No known key found for this signature in database
GPG Key ID: CD109927C34A63C4
21 changed files with 1127 additions and 31 deletions

View File

@ -199,8 +199,8 @@ func shouldOverride(ctx context.Context, result SniffResult, request session.Sni
} }
if fkr0, ok := fakeDNSEngine.(dns.FakeDNSEngineRev0); ok && protocolString != "bittorrent" && p == "fakedns" && if fkr0, ok := fakeDNSEngine.(dns.FakeDNSEngineRev0); ok && protocolString != "bittorrent" && p == "fakedns" &&
destination.Address.Family().IsIP() && fkr0.IsIPInIPPool(destination.Address) { destination.Address.Family().IsIP() && fkr0.IsIPInIPPool(destination.Address) {
newError("Using sniffer ", protocolString, " since the fake DNS missed").WriteToLog(session.ExportIDToError(ctx)) newError("Using sniffer ", protocolString, " since the fake DNS missed").WriteToLog(session.ExportIDToError(ctx))
return true return true
} }
if resultSubset, ok := result.(SnifferIsProtoSubsetOf); ok { if resultSubset, ok := result.(SnifferIsProtoSubsetOf); ok {
if resultSubset.IsProtoSubsetOf(p) { if resultSubset.IsProtoSubsetOf(p) {
@ -399,7 +399,18 @@ func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.
var handler outbound.Handler var handler outbound.Handler
if d.router != nil { if forcedOutboundTag := session.GetForcedOutboundTagFromContext(ctx); forcedOutboundTag != "" {
ctx = session.SetForcedOutboundTagToContext(ctx, "")
if h := d.ohm.GetHandler(forcedOutboundTag); h != nil {
newError("taking platform initialized detour [", forcedOutboundTag, "] for [", destination, "]").WriteToLog(session.ExportIDToError(ctx))
handler = h
} else {
newError("non existing tag for platform initialized detour: ", forcedOutboundTag).AtError().WriteToLog(session.ExportIDToError(ctx))
common.Close(link.Writer)
common.Interrupt(link.Reader)
return
}
} else if d.router != nil {
if route, err := d.router.PickRoute(routing_session.AsRoutingContext(ctx)); err == nil { if route, err := d.router.PickRoute(routing_session.AsRoutingContext(ctx)); err == nil {
tag := route.GetOutboundTag() tag := route.GetOutboundTag()
if h := d.ohm.GetHandler(tag); h != nil { if h := d.ohm.GetHandler(tag); h != nil {

View File

@ -0,0 +1,530 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.27.1
// protoc v3.18.0
// source: app/observatory/config.proto
package observatory
import (
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
type ObservationResult struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Status []*OutboundStatus `protobuf:"bytes,1,rep,name=status,proto3" json:"status,omitempty"`
}
func (x *ObservationResult) Reset() {
*x = ObservationResult{}
if protoimpl.UnsafeEnabled {
mi := &file_app_observatory_config_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *ObservationResult) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*ObservationResult) ProtoMessage() {}
func (x *ObservationResult) ProtoReflect() protoreflect.Message {
mi := &file_app_observatory_config_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use ObservationResult.ProtoReflect.Descriptor instead.
func (*ObservationResult) Descriptor() ([]byte, []int) {
return file_app_observatory_config_proto_rawDescGZIP(), []int{0}
}
func (x *ObservationResult) GetStatus() []*OutboundStatus {
if x != nil {
return x.Status
}
return nil
}
type OutboundStatus struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// @Document Whether this outbound is usable
//@Restriction ReadOnlyForUser
Alive bool `protobuf:"varint,1,opt,name=alive,proto3" json:"alive,omitempty"`
// @Document The time for probe request to finish.
//@Type time.ms
//@Restriction ReadOnlyForUser
Delay int64 `protobuf:"varint,2,opt,name=delay,proto3" json:"delay,omitempty"`
// @Document The last error caused this outbound failed to relay probe request
//@Restriction NotMachineReadable
LastErrorReason string `protobuf:"bytes,3,opt,name=last_error_reason,json=lastErrorReason,proto3" json:"last_error_reason,omitempty"`
// @Document The outbound tag for this Server
//@Type id.outboundTag
OutboundTag string `protobuf:"bytes,4,opt,name=outbound_tag,json=outboundTag,proto3" json:"outbound_tag,omitempty"`
// @Document The time this outbound is known to be alive
//@Type id.outboundTag
LastSeenTime int64 `protobuf:"varint,5,opt,name=last_seen_time,json=lastSeenTime,proto3" json:"last_seen_time,omitempty"`
// @Document The time this outbound is tried
//@Type id.outboundTag
LastTryTime int64 `protobuf:"varint,6,opt,name=last_try_time,json=lastTryTime,proto3" json:"last_try_time,omitempty"`
}
func (x *OutboundStatus) Reset() {
*x = OutboundStatus{}
if protoimpl.UnsafeEnabled {
mi := &file_app_observatory_config_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *OutboundStatus) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*OutboundStatus) ProtoMessage() {}
func (x *OutboundStatus) ProtoReflect() protoreflect.Message {
mi := &file_app_observatory_config_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use OutboundStatus.ProtoReflect.Descriptor instead.
func (*OutboundStatus) Descriptor() ([]byte, []int) {
return file_app_observatory_config_proto_rawDescGZIP(), []int{1}
}
func (x *OutboundStatus) GetAlive() bool {
if x != nil {
return x.Alive
}
return false
}
func (x *OutboundStatus) GetDelay() int64 {
if x != nil {
return x.Delay
}
return 0
}
func (x *OutboundStatus) GetLastErrorReason() string {
if x != nil {
return x.LastErrorReason
}
return ""
}
func (x *OutboundStatus) GetOutboundTag() string {
if x != nil {
return x.OutboundTag
}
return ""
}
func (x *OutboundStatus) GetLastSeenTime() int64 {
if x != nil {
return x.LastSeenTime
}
return 0
}
func (x *OutboundStatus) GetLastTryTime() int64 {
if x != nil {
return x.LastTryTime
}
return 0
}
type ProbeResult struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// @Document Whether this outbound is usable
//@Restriction ReadOnlyForUser
Alive bool `protobuf:"varint,1,opt,name=alive,proto3" json:"alive,omitempty"`
// @Document The time for probe request to finish.
//@Type time.ms
//@Restriction ReadOnlyForUser
Delay int64 `protobuf:"varint,2,opt,name=delay,proto3" json:"delay,omitempty"`
// @Document The error caused this outbound failed to relay probe request
//@Restriction NotMachineReadable
LastErrorReason string `protobuf:"bytes,3,opt,name=last_error_reason,json=lastErrorReason,proto3" json:"last_error_reason,omitempty"`
}
func (x *ProbeResult) Reset() {
*x = ProbeResult{}
if protoimpl.UnsafeEnabled {
mi := &file_app_observatory_config_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *ProbeResult) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*ProbeResult) ProtoMessage() {}
func (x *ProbeResult) ProtoReflect() protoreflect.Message {
mi := &file_app_observatory_config_proto_msgTypes[2]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use ProbeResult.ProtoReflect.Descriptor instead.
func (*ProbeResult) Descriptor() ([]byte, []int) {
return file_app_observatory_config_proto_rawDescGZIP(), []int{2}
}
func (x *ProbeResult) GetAlive() bool {
if x != nil {
return x.Alive
}
return false
}
func (x *ProbeResult) GetDelay() int64 {
if x != nil {
return x.Delay
}
return 0
}
func (x *ProbeResult) GetLastErrorReason() string {
if x != nil {
return x.LastErrorReason
}
return ""
}
type Intensity struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// @Document The time interval for a probe request in ms.
//@Type time.ms
ProbeInterval uint32 `protobuf:"varint,1,opt,name=probe_interval,json=probeInterval,proto3" json:"probe_interval,omitempty"`
}
func (x *Intensity) Reset() {
*x = Intensity{}
if protoimpl.UnsafeEnabled {
mi := &file_app_observatory_config_proto_msgTypes[3]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Intensity) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Intensity) ProtoMessage() {}
func (x *Intensity) ProtoReflect() protoreflect.Message {
mi := &file_app_observatory_config_proto_msgTypes[3]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Intensity.ProtoReflect.Descriptor instead.
func (*Intensity) Descriptor() ([]byte, []int) {
return file_app_observatory_config_proto_rawDescGZIP(), []int{3}
}
func (x *Intensity) GetProbeInterval() uint32 {
if x != nil {
return x.ProbeInterval
}
return 0
}
type Config struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// @Document The selectors for outbound under observation
SubjectSelector []string `protobuf:"bytes,2,rep,name=subject_selector,json=subjectSelector,proto3" json:"subject_selector,omitempty"`
ProbeUrl string `protobuf:"bytes,3,opt,name=probe_url,json=probeUrl,proto3" json:"probe_url,omitempty"`
ProbeInterval int64 `protobuf:"varint,4,opt,name=probe_interval,json=probeInterval,proto3" json:"probe_interval,omitempty"`
EnableConcurrency bool `protobuf:"varint,5,opt,name=enable_concurrency,json=enableConcurrency,proto3" json:"enable_concurrency,omitempty"`
}
func (x *Config) Reset() {
*x = Config{}
if protoimpl.UnsafeEnabled {
mi := &file_app_observatory_config_proto_msgTypes[4]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Config) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Config) ProtoMessage() {}
func (x *Config) ProtoReflect() protoreflect.Message {
mi := &file_app_observatory_config_proto_msgTypes[4]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Config.ProtoReflect.Descriptor instead.
func (*Config) Descriptor() ([]byte, []int) {
return file_app_observatory_config_proto_rawDescGZIP(), []int{4}
}
func (x *Config) GetSubjectSelector() []string {
if x != nil {
return x.SubjectSelector
}
return nil
}
func (x *Config) GetProbeUrl() string {
if x != nil {
return x.ProbeUrl
}
return ""
}
func (x *Config) GetProbeInterval() int64 {
if x != nil {
return x.ProbeInterval
}
return 0
}
func (x *Config) GetEnableConcurrency() bool {
if x != nil {
return x.EnableConcurrency
}
return false
}
var File_app_observatory_config_proto protoreflect.FileDescriptor
var file_app_observatory_config_proto_rawDesc = []byte{
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}
var (
file_app_observatory_config_proto_rawDescOnce sync.Once
file_app_observatory_config_proto_rawDescData = file_app_observatory_config_proto_rawDesc
)
func file_app_observatory_config_proto_rawDescGZIP() []byte {
file_app_observatory_config_proto_rawDescOnce.Do(func() {
file_app_observatory_config_proto_rawDescData = protoimpl.X.CompressGZIP(file_app_observatory_config_proto_rawDescData)
})
return file_app_observatory_config_proto_rawDescData
}
var file_app_observatory_config_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
var file_app_observatory_config_proto_goTypes = []interface{}{
(*ObservationResult)(nil), // 0: xray.core.app.observatory.ObservationResult
(*OutboundStatus)(nil), // 1: xray.core.app.observatory.OutboundStatus
(*ProbeResult)(nil), // 2: xray.core.app.observatory.ProbeResult
(*Intensity)(nil), // 3: xray.core.app.observatory.Intensity
(*Config)(nil), // 4: xray.core.app.observatory.Config
}
var file_app_observatory_config_proto_depIdxs = []int32{
1, // 0: xray.core.app.observatory.ObservationResult.status:type_name -> xray.core.app.observatory.OutboundStatus
1, // [1:1] is the sub-list for method output_type
1, // [1:1] is the sub-list for method input_type
1, // [1:1] is the sub-list for extension type_name
1, // [1:1] is the sub-list for extension extendee
0, // [0:1] is the sub-list for field type_name
}
func init() { file_app_observatory_config_proto_init() }
func file_app_observatory_config_proto_init() {
if File_app_observatory_config_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_app_observatory_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*ObservationResult); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_app_observatory_config_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*OutboundStatus); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_app_observatory_config_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*ProbeResult); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_app_observatory_config_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Intensity); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_app_observatory_config_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Config); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_app_observatory_config_proto_rawDesc,
NumEnums: 0,
NumMessages: 5,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_app_observatory_config_proto_goTypes,
DependencyIndexes: file_app_observatory_config_proto_depIdxs,
MessageInfos: file_app_observatory_config_proto_msgTypes,
}.Build()
File_app_observatory_config_proto = out.File
file_app_observatory_config_proto_rawDesc = nil
file_app_observatory_config_proto_goTypes = nil
file_app_observatory_config_proto_depIdxs = nil
}

View File

@ -0,0 +1,73 @@
syntax = "proto3";
package xray.core.app.observatory;
option csharp_namespace = "Xray.App.Observatory";
option go_package = "github.com/xtls/xray-core/app/observatory";
option java_package = "com.xray.app.observatory";
option java_multiple_files = true;
message ObservationResult {
repeated OutboundStatus status = 1;
}
message OutboundStatus{
/* @Document Whether this outbound is usable
@Restriction ReadOnlyForUser
*/
bool alive = 1;
/* @Document The time for probe request to finish.
@Type time.ms
@Restriction ReadOnlyForUser
*/
int64 delay = 2;
/* @Document The last error caused this outbound failed to relay probe request
@Restriction NotMachineReadable
*/
string last_error_reason = 3;
/* @Document The outbound tag for this Server
@Type id.outboundTag
*/
string outbound_tag = 4;
/* @Document The time this outbound is known to be alive
@Type id.outboundTag
*/
int64 last_seen_time = 5;
/* @Document The time this outbound is tried
@Type id.outboundTag
*/
int64 last_try_time = 6;
}
message ProbeResult{
/* @Document Whether this outbound is usable
@Restriction ReadOnlyForUser
*/
bool alive = 1;
/* @Document The time for probe request to finish.
@Type time.ms
@Restriction ReadOnlyForUser
*/
int64 delay = 2;
/* @Document The error caused this outbound failed to relay probe request
@Restriction NotMachineReadable
*/
string last_error_reason = 3;
}
message Intensity{
/* @Document The time interval for a probe request in ms.
@Type time.ms
*/
uint32 probe_interval = 1;
}
message Config {
/* @Document The selectors for outbound under observation
*/
repeated string subject_selector = 2;
string probe_url = 3;
int64 probe_interval = 4;
bool enable_concurrency = 5;
}

View File

@ -0,0 +1,9 @@
package observatory
import "github.com/xtls/xray-core/common/errors"
type errPathObjHolder struct{}
func newError(values ...interface{}) *errors.Error {
return errors.New(values...).WithPathObj(errPathObjHolder{})
}

View File

@ -0,0 +1,26 @@
package observatory
import "github.com/xtls/xray-core/common/errors"
type errorCollector struct {
errors *errors.Error
}
func (e *errorCollector) SubmitError(err error) {
if e.errors == nil {
e.errors = newError("underlying connection error").Base(err)
return
}
e.errors = e.errors.Base(newError("underlying connection error").Base(err))
}
func newErrorCollector() *errorCollector {
return &errorCollector{}
}
func (e *errorCollector) UnderlyingError() error {
if e.errors == nil {
return newError("failed to produce report")
}
return e.errors
}

View File

@ -0,0 +1,3 @@
package observatory
//go:generate go run github.com/xtls/xray-core/common/errors/errorgen

216
app/observatory/observer.go Normal file
View File

@ -0,0 +1,216 @@
package observatory
import (
"context"
"github.com/xtls/xray-core/core"
"net"
"net/http"
"net/url"
"sort"
"sync"
"time"
"github.com/golang/protobuf/proto"
"github.com/xtls/xray-core/common"
v2net "github.com/xtls/xray-core/common/net"
"github.com/xtls/xray-core/common/session"
"github.com/xtls/xray-core/common/signal/done"
"github.com/xtls/xray-core/common/task"
"github.com/xtls/xray-core/features/extension"
"github.com/xtls/xray-core/features/outbound"
"github.com/xtls/xray-core/transport/internet/tagged"
)
type Observer struct {
config *Config
ctx context.Context
statusLock sync.Mutex
status []*OutboundStatus
finished *done.Instance
ohm outbound.Manager
}
func (o *Observer) GetObservation(ctx context.Context) (proto.Message, error) {
return &ObservationResult{Status: o.status}, nil
}
func (o *Observer) Type() interface{} {
return extension.ObservatoryType()
}
func (o *Observer) Start() error {
if o.config != nil && len(o.config.SubjectSelector) != 0 {
o.finished = done.New()
go o.background()
}
return nil
}
func (o *Observer) Close() error {
if o.finished != nil {
return o.finished.Close()
}
return nil
}
func (o *Observer) background() {
for !o.finished.Done() {
hs, ok := o.ohm.(outbound.HandlerSelector)
if !ok {
newError("outbound.Manager is not a HandlerSelector").WriteToLog()
return
}
outbounds := hs.Select(o.config.SubjectSelector)
sort.Strings(outbounds)
o.updateStatus(outbounds)
for _, v := range outbounds {
result := o.probe(v)
o.updateStatusForResult(v, &result)
if o.finished.Done() {
return
}
sleepTime := time.Second * 10
if o.config.ProbeInterval != 0 {
sleepTime = time.Duration(o.config.ProbeInterval)
}
time.Sleep(sleepTime)
}
}
}
func (o *Observer) updateStatus(outbounds []string) {
o.statusLock.Lock()
defer o.statusLock.Unlock()
// TODO should remove old inbound that is removed
_ = outbounds
}
func (o *Observer) probe(outbound string) ProbeResult {
errorCollectorForRequest := newErrorCollector()
httpTransport := http.Transport{
Proxy: func(*http.Request) (*url.URL, error) {
return nil, nil
},
DialContext: func(ctx context.Context, network string, addr string) (net.Conn, error) {
var connection net.Conn
taskErr := task.Run(ctx, func() error {
// MUST use V2Fly's built in context system
dest, err := v2net.ParseDestination(network + ":" + addr)
if err != nil {
return newError("cannot understand address").Base(err)
}
trackedCtx := session.TrackedConnectionError(o.ctx, errorCollectorForRequest)
conn, err := tagged.Dialer(trackedCtx, dest, outbound)
if err != nil {
return newError("cannot dial remote address ", dest).Base(err)
}
connection = conn
return nil
})
if taskErr != nil {
return nil, newError("cannot finish connection").Base(taskErr)
}
return connection, nil
},
TLSHandshakeTimeout: time.Second * 5,
}
httpClient := &http.Client{
Transport: &httpTransport,
CheckRedirect: func(req *http.Request, via []*http.Request) error {
return http.ErrUseLastResponse
},
Jar: nil,
Timeout: time.Second * 5,
}
var GETTime time.Duration
err := task.Run(o.ctx, func() error {
startTime := time.Now()
probeURL := "https://api.v2fly.org/checkConnection.svgz"
if o.config.ProbeUrl != "" {
probeURL = o.config.ProbeUrl
}
response, err := httpClient.Get(probeURL)
if err != nil {
return newError("outbound failed to relay connection").Base(err)
}
if response.Body != nil {
response.Body.Close()
}
endTime := time.Now()
GETTime = endTime.Sub(startTime)
return nil
})
if err != nil {
fullerr := newError("underlying connection failed").Base(errorCollectorForRequest.UnderlyingError())
fullerr = newError("with outbound handler report").Base(fullerr)
fullerr = newError("GET request failed:", err).Base(fullerr)
fullerr = newError("the outbound ", outbound, " is dead:").Base(fullerr)
fullerr = fullerr.AtInfo()
fullerr.WriteToLog()
return ProbeResult{Alive: false, LastErrorReason: fullerr.Error()}
}
newError("the outbound ", outbound, " is alive:", GETTime.Seconds()).AtInfo().WriteToLog()
return ProbeResult{Alive: true, Delay: GETTime.Milliseconds()}
}
func (o *Observer) updateStatusForResult(outbound string, result *ProbeResult) {
o.statusLock.Lock()
defer o.statusLock.Unlock()
var status *OutboundStatus
if location := o.findStatusLocationLockHolderOnly(outbound); location != -1 {
status = o.status[location]
} else {
status = &OutboundStatus{}
o.status = append(o.status, status)
}
status.LastTryTime = time.Now().Unix()
status.OutboundTag = outbound
status.Alive = result.Alive
if result.Alive {
status.Delay = result.Delay
status.LastSeenTime = status.LastTryTime
status.LastErrorReason = ""
} else {
status.LastErrorReason = result.LastErrorReason
status.Delay = 99999999
}
}
func (o *Observer) findStatusLocationLockHolderOnly(outbound string) int {
for i, v := range o.status {
if v.OutboundTag == outbound {
return i
}
}
return -1
}
func New(ctx context.Context, config *Config) (*Observer, error) {
var outboundManager outbound.Manager
err := core.RequireFeatures(ctx, func(om outbound.Manager) {
outboundManager = om
})
if err != nil {
return nil, newError("Cannot get depended features").Base(err)
}
return &Observer{
config: config,
ctx: ctx,
ohm: outboundManager,
}, nil
}
func init() {
common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
return New(ctx, config.(*Config))
}))
}

View File

@ -1,7 +1,10 @@
package router package router
import ( import (
"context"
"github.com/xtls/xray-core/common/dice" "github.com/xtls/xray-core/common/dice"
"github.com/xtls/xray-core/features/extension"
"github.com/xtls/xray-core/features/outbound" "github.com/xtls/xray-core/features/outbound"
) )
@ -41,3 +44,8 @@ func (b *Balancer) PickOutbound() (string, error) {
} }
return tag, nil return tag, nil
} }
func (b *Balancer) InjectContext(ctx context.Context) {
if contextReceiver, ok := b.strategy.(extension.ContextReceiver); ok {
contextReceiver.InjectContext(ctx)
}
}

View File

@ -708,6 +708,7 @@ type BalancingRule struct {
Tag string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"` Tag string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
OutboundSelector []string `protobuf:"bytes,2,rep,name=outbound_selector,json=outboundSelector,proto3" json:"outbound_selector,omitempty"` OutboundSelector []string `protobuf:"bytes,2,rep,name=outbound_selector,json=outboundSelector,proto3" json:"outbound_selector,omitempty"`
Strategy string `protobuf:"bytes,3,opt,name=strategy,proto3" json:"strategy,omitempty"`
} }
func (x *BalancingRule) Reset() { func (x *BalancingRule) Reset() {
@ -756,6 +757,13 @@ func (x *BalancingRule) GetOutboundSelector() []string {
return nil return nil
} }
func (x *BalancingRule) GetStrategy() string {
if x != nil {
return x.Strategy
}
return ""
}
type Config struct { type Config struct {
state protoimpl.MessageState state protoimpl.MessageState
sizeCache protoimpl.SizeCache sizeCache protoimpl.SizeCache
@ -1010,36 +1018,38 @@ var file_app_router_config_proto_rawDesc = []byte{
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0x33,
} }
var ( var (

View File

@ -127,6 +127,7 @@ message RoutingRule {
message BalancingRule { message BalancingRule {
string tag = 1; string tag = 1;
repeated string outbound_selector = 2; repeated string outbound_selector = 2;
string strategy = 3;
} }
message Config { message Config {

View File

@ -0,0 +1,57 @@
package router
import (
"context"
"github.com/xtls/xray-core/core"
"github.com/xtls/xray-core/app/observatory"
"github.com/xtls/xray-core/common"
"github.com/xtls/xray-core/features/extension"
)
type LeastPingStrategy struct {
ctx context.Context
observatory extension.Observatory
}
func (l *LeastPingStrategy) InjectContext(ctx context.Context) {
common.Must(core.RequireFeatures(ctx, func(observatory extension.Observatory) error {
l.observatory = observatory
return nil
}))
l.ctx = ctx
}
func (l *LeastPingStrategy) PickOutbound(strings []string) string {
observeReport, err := l.observatory.GetObservation(l.ctx)
if err != nil {
newError("cannot get observe report").Base(err).WriteToLog()
return ""
}
outboundsList := outboundList(strings)
if result, ok := observeReport.(*observatory.ObservationResult); ok {
status := result.Status
leastPing := int64(99999999)
selectedOutboundName := ""
for _, v := range status {
if outboundsList.contains(v.OutboundTag) && v.Alive && v.Delay < leastPing {
selectedOutboundName = v.OutboundTag
}
}
return selectedOutboundName
}
//No way to understand observeReport
return ""
}
type outboundList []string
func (o outboundList) contains(name string) bool {
for _, v := range o {
if v == name {
return true
}
}
return false
}

View File

@ -11,6 +11,7 @@ const (
contentSessionKey contentSessionKey
muxPreferedSessionKey muxPreferedSessionKey
sockoptSessionKey sockoptSessionKey
trackedConnectionErrorKey
) )
// ContextWithID returns a new context with the given ID. // ContextWithID returns a new context with the given ID.
@ -84,3 +85,33 @@ func SockoptFromContext(ctx context.Context) *Sockopt {
} }
return nil return nil
} }
func GetForcedOutboundTagFromContext(ctx context.Context) string {
if ContentFromContext(ctx) == nil {
return ""
}
return ContentFromContext(ctx).Attribute("forcedOutboundTag")
}
func SetForcedOutboundTagToContext(ctx context.Context, tag string) context.Context {
if contentFromContext := ContentFromContext(ctx); contentFromContext == nil {
ctx = ContextWithContent(ctx, &Content{})
}
ContentFromContext(ctx).SetAttribute("forcedOutboundTag", tag)
return ctx
}
type TrackedRequestErrorFeedback interface {
SubmitError(err error)
}
func SubmitOutboundErrorToOriginator(ctx context.Context, err error) {
if errorTracker := ctx.Value(trackedConnectionErrorKey); errorTracker != nil {
errorTracker := errorTracker.(TrackedRequestErrorFeedback)
errorTracker.SubmitError(err)
}
}
func TrackedConnectionError(ctx context.Context, tracker TrackedRequestErrorFeedback) context.Context {
return context.WithValue(ctx, trackedConnectionErrorKey, tracker)
}

View File

@ -0,0 +1,7 @@
package extension
import "context"
type ContextReceiver interface {
InjectContext(ctx context.Context)
}

View File

@ -0,0 +1,19 @@
package extension
import (
"context"
"github.com/golang/protobuf/proto"
"github.com/xtls/xray-core/features"
)
type Observatory interface {
features.Feature
GetObservation(ctx context.Context) (proto.Message, error)
}
func ObservatoryType() interface{} {
return (*Observatory)(nil)
}

14
infra/conf/observatory.go Normal file
View File

@ -0,0 +1,14 @@
package conf
import (
"github.com/golang/protobuf/proto"
"github.com/xtls/xray-core/app/observatory"
)
type ObservatoryConfig struct {
SubjectSelector []string `json:"subjectSelector"`
}
func (o ObservatoryConfig) Build() (proto.Message, error) {
return &observatory.Config{SubjectSelector: o.SubjectSelector}, nil
}

View File

@ -6,12 +6,12 @@ import (
"os" "os"
"strings" "strings"
"github.com/xtls/xray-core/transport/internet"
"github.com/xtls/xray-core/app/dispatcher" "github.com/xtls/xray-core/app/dispatcher"
"github.com/xtls/xray-core/app/proxyman" "github.com/xtls/xray-core/app/proxyman"
"github.com/xtls/xray-core/app/stats" "github.com/xtls/xray-core/app/stats"
"github.com/xtls/xray-core/common/serial" "github.com/xtls/xray-core/common/serial"
"github.com/xtls/xray-core/transport/internet"
core "github.com/xtls/xray-core/core" core "github.com/xtls/xray-core/core"
"github.com/xtls/xray-core/transport/internet/xtls" "github.com/xtls/xray-core/transport/internet/xtls"
) )
@ -405,6 +405,7 @@ type Config struct {
Stats *StatsConfig `json:"stats"` Stats *StatsConfig `json:"stats"`
Reverse *ReverseConfig `json:"reverse"` Reverse *ReverseConfig `json:"reverse"`
FakeDNS *FakeDNSConfig `json:"fakeDns"` FakeDNS *FakeDNSConfig `json:"fakeDns"`
Observatory *ObservatoryConfig `json:"observatory"`
} }
func (c *Config) findInboundTag(tag string) int { func (c *Config) findInboundTag(tag string) int {
@ -611,6 +612,14 @@ func (c *Config) Build() (*core.Config, error) {
config.App = append(config.App, serial.ToTypedMessage(r)) config.App = append(config.App, serial.ToTypedMessage(r))
} }
if c.Observatory != nil {
r, err := c.Observatory.Build()
if err != nil {
return nil, err
}
config.App = append(config.App, serial.ToTypedMessage(r))
}
var inbounds []InboundDetourConfig var inbounds []InboundDetourConfig
if c.InboundConfig != nil { if c.InboundConfig != nil {

View File

@ -23,6 +23,9 @@ import (
_ "github.com/xtls/xray-core/app/router" _ "github.com/xtls/xray-core/app/router"
_ "github.com/xtls/xray-core/app/stats" _ "github.com/xtls/xray-core/app/stats"
// Fix dependency cycle caused by core import in internet package
_ "github.com/xtls/xray-core/transport/internet/tagged/taggedimpl"
// Inbound and outbound proxies. // Inbound and outbound proxies.
_ "github.com/xtls/xray-core/proxy/blackhole" _ "github.com/xtls/xray-core/proxy/blackhole"
_ "github.com/xtls/xray-core/proxy/dns" _ "github.com/xtls/xray-core/proxy/dns"

View File

@ -0,0 +1,11 @@
package tagged
import (
"context"
"github.com/xtls/xray-core/common/net"
)
type DialFunc func(ctx context.Context, dest net.Destination, tag string) (net.Conn, error)
var Dialer DialFunc

View File

@ -0,0 +1,9 @@
package taggedimpl
import "github.com/xtls/xray-core/common/errors"
type errPathObjHolder struct{}
func newError(values ...interface{}) *errors.Error {
return errors.New(values...).WithPathObj(errPathObjHolder{})
}

View File

@ -0,0 +1,46 @@
package taggedimpl
import (
"context"
"github.com/xtls/xray-core/common/net/cnc"
"github.com/xtls/xray-core/core"
"github.com/xtls/xray-core/common/net"
"github.com/xtls/xray-core/common/session"
"github.com/xtls/xray-core/features/routing"
"github.com/xtls/xray-core/transport/internet/tagged"
)
func DialTaggedOutbound(ctx context.Context, dest net.Destination, tag string) (net.Conn, error) {
var dispatcher routing.Dispatcher
if core.FromContext(ctx) == nil {
return nil, newError("Instance context variable is not in context, dial denied. ")
}
if err := core.RequireFeatures(ctx, func(dispatcherInstance routing.Dispatcher) {
dispatcher = dispatcherInstance
}); err != nil {
return nil, newError("Required Feature dispatcher not resolved").Base(err)
}
content := new(session.Content)
content.SkipDNSResolve = true
ctx = session.ContextWithContent(ctx, content)
ctx = session.SetForcedOutboundTagToContext(ctx, tag)
r, err := dispatcher.Dispatch(ctx, dest)
if err != nil {
return nil, err
}
var readerOpt cnc.ConnectionOption
if dest.Network == net.Network_TCP {
readerOpt = cnc.ConnectionOutputMulti(r.Reader)
} else {
readerOpt = cnc.ConnectionOutputMultiUDP(r.Reader)
}
return cnc.NewConnection(cnc.ConnectionInputMulti(r.Writer), readerOpt), nil
}
func init() {
tagged.Dialer = DialTaggedOutbound
}

View File

@ -0,0 +1,3 @@
package taggedimpl
//go:generate go run github.com/xtls/xray-core/common/errors/errorgen