Thomas/metrics

.gitignore

@@ -1,2 +1,3 @@
 /data/
 /dist/
+**/.DS_Store

cmd/cmd_run.go

@@ -17,9 +17,13 @@ import (
 	"github.com/sagernet/sing/common/json"
 	"github.com/sagernet/sing/service"
 	"github.com/spf13/cobra"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/metric/noop"
+
 	"gopkg.in/ini.v1"
 
 	"github.com/getlantern/lantern-box/adapter"
+	"github.com/getlantern/lantern-box/metrics"
 	"github.com/getlantern/lantern-box/tracker/clientcontext"
 	"github.com/getlantern/lantern-box/tracker/datacap"
 )
@@ -114,6 +118,18 @@ func create(configPath string, datacapURL string) (*box.Box, context.CancelFunc,
 		log.Warn("Datacap URL not provided, datacap tracking disabled")
 	}
 
+	mp := otel.GetMeterProvider()
+	if _, ok := mp.(noop.MeterProvider); ok {
+		log.Info("Metrics not enabled, no meter provider configured")
+	} else {
+		metricsTracker, err := metrics.NewTracker()
+		if err != nil {
+			return nil, nil, fmt.Errorf("create metrics tracker: %w", err)
+		}
+		instance.Router().AppendTracker(metricsTracker)
+		log.Info("Metric Tracking Enabled")
+	}
+
 	osSignals := make(chan os.Signal, 1)
 	signal.Notify(osSignals, os.Interrupt, syscall.SIGTERM, syscall.SIGHUP)
 	defer func() {

cmd/main.go

@@ -6,6 +6,10 @@ import (
 	"os"
 	"strings"
 
+	sdkotel "go.opentelemetry.io/otel"
+
+	"go.opentelemetry.io/otel/metric/noop"
+
 	"github.com/spf13/cobra"
 
 	box "github.com/getlantern/lantern-box"
@@ -40,6 +44,9 @@ var rootCmd = &cobra.Command{
 func preRun(cmd *cobra.Command, args []string) {
 	globalCtx = box.BaseContext()
 
+	// Default to not report metrics
+	sdkotel.SetMeterProvider(noop.NewMeterProvider())
+
 	path, err := cmd.Flags().GetString("config")
 	if err != nil {
 		return
@@ -61,7 +68,6 @@ func preRun(cmd *cobra.Command, args []string) {
 	}
 
 	proxyInfoPath := strings.Replace(path, ".json", ".ini", 1)
-
 	proxyInfo, err := readProxyInfoFile(proxyInfoPath)
 	if err != nil {
 		return

go.mod

@@ -30,15 +30,17 @@ require (
 	github.com/spf13/cobra v1.10.1
 	github.com/stretchr/testify v1.11.1
 	github.com/tetratelabs/wazero v1.7.3
-	go.opentelemetry.io/otel v1.38.0
-	go.opentelemetry.io/otel/metric v1.38.0
-	go.opentelemetry.io/otel/trace v1.38.0
+	go.opentelemetry.io/otel v1.39.0
+	go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.15.0
+	go.opentelemetry.io/otel/metric v1.39.0
+	go.opentelemetry.io/otel/trace v1.39.0
 	gopkg.in/ini.v1 v1.67.0
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
 	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/dsnet/compress v0.0.2-0.20210315054119-f66993602bf5 // indirect
 	github.com/getlantern/context v0.0.0-20220418194847-3d5e7a086201 // indirect
 	github.com/getlantern/golog v0.0.0-20230503153817-8e72de7e0a65 // indirect
@@ -55,6 +57,9 @@ require (
 	github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c // indirect
 	github.com/ulikunitz/xz v0.5.10 // indirect
 	github.com/xi2/xz v0.0.0-20171230120015-48954b6210f8 // indirect
+	go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.39.0 // indirect
+	go.opentelemetry.io/otel/log v0.14.0 // indirect
+	go.opentelemetry.io/otel/sdk/log v0.14.0 // indirect
 	go.opentelemetry.io/proto/otlp v1.7.1 // indirect
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20251124214823-79d6a2a48846 // indirect
@@ -215,10 +220,10 @@ require (
 	github.com/x448/float16 v0.8.4 // indirect
 	github.com/zeebo/blake3 v0.2.4 // indirect
 	go.etcd.io/bbolt v1.3.6 // indirect
-	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.38.0
-	go.opentelemetry.io/otel/sdk v1.38.0
-	go.opentelemetry.io/otel/sdk/metric v1.38.0
+	go.opentelemetry.io/otel/sdk v1.39.0
+	go.opentelemetry.io/otel/sdk/metric v1.39.0
 	go.uber.org/mock v0.5.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.27.0 // indirect
@@ -229,7 +234,7 @@ require (
 	golang.org/x/mod v0.27.0 // indirect
 	golang.org/x/net v0.43.0 // indirect
 	golang.org/x/sync v0.16.0 // indirect
-	golang.org/x/sys v0.35.0 // indirect
+	golang.org/x/sys v0.39.0 // indirect
 	golang.org/x/term v0.34.0 // indirect
 	golang.org/x/text v0.28.0 // indirect
 	golang.org/x/time v0.9.0 // indirect

go.sum

@@ -119,6 +119,8 @@ github.com/caddyserver/zerossl v0.1.3/go.mod h1:CxA0acn7oEGO6//4rtrRjYgEoa4MFw/X
 github.com/cenkalti/backoff/v5 v5.0.3 h1:ZN+IMa753KfX5hd8vVaMixjnqRZ3y8CuJKRKj1xcsSM=
 github.com/cenkalti/backoff/v5 v5.0.3/go.mod h1:rkhZdG3JZukswDf7f0cwqPNk4K0sa+F97BxZthm/crw=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cilium/ebpf v0.15.0 h1:7NxJhNiBT3NG8pZJ3c+yfrVdHY8ScgKD27sScgjLMMk=
 github.com/cilium/ebpf v0.15.0/go.mod h1:DHp1WyrLeiBh19Cf/tfiSMhqheEiK8fXFZ4No0P1Hso=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
@@ -637,20 +639,40 @@ go.opencensus.io v0.20.2/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
 go.opencensus.io v0.22.3/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
 go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
+go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64=
+go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
 go.opentelemetry.io/otel v1.9.0/go.mod h1:np4EoPGzoPs3O67xUVNoPPcmSvsfOxNlNA4F4AC+0Eo=
 go.opentelemetry.io/otel v1.38.0 h1:RkfdswUDRimDg0m2Az18RKOsnI8UDzppJAtj01/Ymk8=
 go.opentelemetry.io/otel v1.38.0/go.mod h1:zcmtmQ1+YmQM9wrNsTGV/q/uyusom3P8RxwExxkZhjM=
+go.opentelemetry.io/otel v1.39.0 h1:8yPrr/S0ND9QEfTfdP9V+SiwT4E0G7Y5MO7p85nis48=
+go.opentelemetry.io/otel v1.39.0/go.mod h1:kLlFTywNWrFyEdH0oj2xK0bFYZtHRYUdv1NklR/tgc8=
 go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.38.0 h1:Oe2z/BCg5q7k4iXC3cqJxKYg0ieRiOqF0cecFYdPTwk=
 go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.38.0/go.mod h1:ZQM5lAJpOsKnYagGg/zV2krVqTtaVdYdDkhMoX6Oalg=
+go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.15.0 h1:0BSddrtQqLEylcErkeFrJBmwFzcqfQq9+/uxfTZq+HE=
+go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.15.0/go.mod h1:87sjYuAPzaRCtdd09GU5gM1U9wQLrrcYrm77mh5EBoc=
+go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.39.0 h1:5gn2urDL/FBnK8OkCfD1j3/ER79rUuTYmCvlXBKeYL8=
+go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.39.0/go.mod h1:0fBG6ZJxhqByfFZDwSwpZGzJU671HkwpWaNe2t4VUPI=
+go.opentelemetry.io/otel/log v0.14.0 h1:2rzJ+pOAZ8qmZ3DDHg73NEKzSZkhkGIua9gXtxNGgrM=
+go.opentelemetry.io/otel/log v0.14.0/go.mod h1:5jRG92fEAgx0SU/vFPxmJvhIuDU9E1SUnEQrMlJpOno=
 go.opentelemetry.io/otel/metric v1.38.0 h1:Kl6lzIYGAh5M159u9NgiRkmoMKjvbsKtYRwgfrA6WpA=
 go.opentelemetry.io/otel/metric v1.38.0/go.mod h1:kB5n/QoRM8YwmUahxvI3bO34eVtQf2i4utNVLr9gEmI=
+go.opentelemetry.io/otel/metric v1.39.0 h1:d1UzonvEZriVfpNKEVmHXbdf909uGTOQjA0HF0Ls5Q0=
+go.opentelemetry.io/otel/metric v1.39.0/go.mod h1:jrZSWL33sD7bBxg1xjrqyDjnuzTUB0x1nBERXd7Ftcs=
 go.opentelemetry.io/otel/sdk v1.38.0 h1:l48sr5YbNf2hpCUj/FoGhW9yDkl+Ma+LrVl8qaM5b+E=
 go.opentelemetry.io/otel/sdk v1.38.0/go.mod h1:ghmNdGlVemJI3+ZB5iDEuk4bWA3GkTpW+DOoZMYBVVg=
+go.opentelemetry.io/otel/sdk v1.39.0 h1:nMLYcjVsvdui1B/4FRkwjzoRVsMK8uL/cj0OyhKzt18=
+go.opentelemetry.io/otel/sdk v1.39.0/go.mod h1:vDojkC4/jsTJsE+kh+LXYQlbL8CgrEcwmt1ENZszdJE=
+go.opentelemetry.io/otel/sdk/log v0.14.0 h1:JU/U3O7N6fsAXj0+CXz21Czg532dW2V4gG1HE/e8Zrg=
+go.opentelemetry.io/otel/sdk/log v0.14.0/go.mod h1:imQvII+0ZylXfKU7/wtOND8Hn4OpT3YUoIgqJVksUkM=
 go.opentelemetry.io/otel/sdk/metric v1.38.0 h1:aSH66iL0aZqo//xXzQLYozmWrXxyFkBJ6qT5wthqPoM=
 go.opentelemetry.io/otel/sdk/metric v1.38.0/go.mod h1:dg9PBnW9XdQ1Hd6ZnRz689CbtrUp0wMMs9iPcgT9EZA=
+go.opentelemetry.io/otel/sdk/metric v1.39.0 h1:cXMVVFVgsIf2YL6QkRF4Urbr/aMInf+2WKg+sEJTtB8=
+go.opentelemetry.io/otel/sdk/metric v1.39.0/go.mod h1:xq9HEVH7qeX69/JnwEfp6fVq5wosJsY1mt4lLfYdVew=
 go.opentelemetry.io/otel/trace v1.9.0/go.mod h1:2737Q0MuG8q1uILYm2YYVkAyLtOofiTNGg6VODnOiPo=
 go.opentelemetry.io/otel/trace v1.38.0 h1:Fxk5bKrDZJUH+AMyyIXGcFAPah0oRcT+LuNtJrmcNLE=
 go.opentelemetry.io/otel/trace v1.38.0/go.mod h1:j1P9ivuFsTceSWe1oY+EeW3sc+Pp42sO++GHkg4wwhs=
+go.opentelemetry.io/otel/trace v1.39.0 h1:2d2vfpEDmCJ5zVYz7ijaJdOF59xLomrvj7bjt6/qCJI=
+go.opentelemetry.io/otel/trace v1.39.0/go.mod h1:88w4/PnZSazkGzz/w84VHpQafiU4EtqqlVdxWy+rNOA=
 go.opentelemetry.io/proto/otlp v1.7.1 h1:gTOMpGDb0WTBOP8JaO72iL3auEZhVmAQg4ipjOVAtj4=
 go.opentelemetry.io/proto/otlp v1.7.1/go.mod h1:b2rVh6rfI/s2pHWNlB7ILJcRALpcNDzKhACevjI+ZnE=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
@@ -792,6 +814,8 @@ golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.35.0 h1:vz1N37gP5bs89s7He8XuIYXpyY0+QlsKmzipCbUtyxI=
 golang.org/x/sys v0.35.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
+golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=

metrics/tracker.go

@@ -0,0 +1,25 @@
+package metrics
+
+import (
+	"context"
+	"net"
+
+	"github.com/sagernet/sing-box/adapter"
+	N "github.com/sagernet/sing/common/network"
+)
+
+var _ (adapter.ConnectionTracker) = (*MetricsTracker)(nil)
+
+type MetricsTracker struct{}
+
+func NewTracker() (*MetricsTracker, error) {
+	return &MetricsTracker{}, nil
+}
+
+func (t *MetricsTracker) RoutedConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext, matchedRule adapter.Rule, matchOutbound adapter.Outbound) net.Conn {
+	return NewConn(conn, &metadata)
+}
+
+func (t *MetricsTracker) RoutedPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext, matchedRule adapter.Rule, matchOutbound adapter.Outbound) N.PacketConn {
+	return NewPacketConn(conn, &metadata)
+}