platform: Add OOM Report & Crash Report

experimental/libbox/report.go

@@ -0,0 +1,97 @@
+//go:build darwin || linux || windows
+
+package libbox
+
+import (
+	"bytes"
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"runtime"
+	"strconv"
+	"time"
+
+	C "github.com/sagernet/sing-box/constant"
+	E "github.com/sagernet/sing/common/exceptions"
+)
+
+type reportMetadata struct {
+	Source              string `json:"source,omitempty"`
+	BundleIdentifier    string `json:"bundleIdentifier,omitempty"`
+	ProcessName         string `json:"processName,omitempty"`
+	ProcessPath         string `json:"processPath,omitempty"`
+	StartedAt           string `json:"startedAt,omitempty"`
+	AppVersion          string `json:"appVersion,omitempty"`
+	AppMarketingVersion string `json:"appMarketingVersion,omitempty"`
+	CoreVersion         string `json:"coreVersion,omitempty"`
+	GoVersion           string `json:"goVersion,omitempty"`
+}
+
+func baseReportMetadata() reportMetadata {
+	processPath, _ := os.Executable()
+	processName := filepath.Base(processPath)
+	if processName == "." {
+		processName = ""
+	}
+	return reportMetadata{
+		Source:      sCrashReportSource,
+		ProcessName: processName,
+		ProcessPath: processPath,
+		CoreVersion: C.Version,
+		GoVersion:   GoVersion(),
+	}
+}
+
+func writeReportFile(destPath string, name string, content []byte) {
+	filePath := filepath.Join(destPath, name)
+	os.WriteFile(filePath, content, 0o666)
+	chownReport(filePath)
+}
+
+func writeReportMetadata(destPath string, metadata any) {
+	data, err := json.Marshal(metadata)
+	if err != nil {
+		return
+	}
+	writeReportFile(destPath, "metadata.json", data)
+}
+
+func copyConfigSnapshot(destPath string) {
+	snapshotPath := configSnapshotPath()
+	content, err := os.ReadFile(snapshotPath)
+	if err != nil {
+		return
+	}
+	if len(bytes.TrimSpace(content)) == 0 {
+		return
+	}
+	writeReportFile(destPath, "configuration.json", content)
+}
+
+func initReportDir(path string) {
+	os.MkdirAll(path, 0o777)
+	chownReport(path)
+}
+
+func chownReport(path string) {
+	if runtime.GOOS != "android" && runtime.GOOS != "windows" {
+		os.Chown(path, sUserID, sGroupID)
+	}
+}
+
+func nextAvailableReportPath(reportsDir string, timestamp time.Time) (string, error) {
+	destName := timestamp.Format("2006-01-02T15-04-05")
+	destPath := filepath.Join(reportsDir, destName)
+	_, err := os.Stat(destPath)
+	if os.IsNotExist(err) {
+		return destPath, nil
+	}
+	for i := 1; i <= 1000; i++ {
+		suffixedPath := filepath.Join(reportsDir, destName+"-"+strconv.Itoa(i))
+		_, err = os.Stat(suffixedPath)
+		if os.IsNotExist(err) {
+			return suffixedPath, nil
+		}
+	}
+	return "", E.New("no available report path for ", destName)
+}