package api import ( "bytes" "context" "encoding/json" "fmt" "io" "io/ioutil" "net/http" "net/url" "os" "reflect" "strings" "time" "google.golang.org/grpc" "google.golang.org/protobuf/proto" "github.com/xtls/xray-core/common/buf" "github.com/xtls/xray-core/main/commands/base" ) type serviceHandler func(ctx context.Context, conn *grpc.ClientConn, cmd *base.Command, args []string) string var ( apiServerAddrPtr string apiTimeout int ) func setSharedFlags(cmd *base.Command) { cmd.Flag.StringVar(&apiServerAddrPtr, "s", "127.0.0.1:8080", "") cmd.Flag.StringVar(&apiServerAddrPtr, "server", "127.0.0.1:8080", "") cmd.Flag.IntVar(&apiTimeout, "t", 3, "") cmd.Flag.IntVar(&apiTimeout, "timeout", 3, "") } func dialAPIServer() (conn *grpc.ClientConn, ctx context.Context, close func()) { ctx, cancel := context.WithTimeout(context.Background(), time.Duration(apiTimeout)*time.Second) conn, err := grpc.DialContext(ctx, apiServerAddrPtr, grpc.WithInsecure(), grpc.WithBlock()) if err != nil { base.Fatalf("failed to dial %s", apiServerAddrPtr) } close = func() { cancel() conn.Close() } return } // loadArg loads one arg, maybe an remote url, or local file path func loadArg(arg string) (out io.Reader, err error) { var data []byte switch { case strings.HasPrefix(arg, "http://"), strings.HasPrefix(arg, "https://"): data, err = fetchHTTPContent(arg) case arg == "stdin:": data, err = ioutil.ReadAll(os.Stdin) default: data, err = ioutil.ReadFile(arg) } if err != nil { return } out = bytes.NewBuffer(data) return } // fetchHTTPContent dials https for remote content func fetchHTTPContent(target string) ([]byte, error) { parsedTarget, err := url.Parse(target) if err != nil { return nil, err } if s := strings.ToLower(parsedTarget.Scheme); s != "http" && s != "https" { return nil, fmt.Errorf("invalid scheme: %s", parsedTarget.Scheme) } client := &http.Client{ Timeout: 30 * time.Second, } resp, err := client.Do(&http.Request{ Method: "GET", URL: parsedTarget, Close: true, }) if err != nil { return nil, fmt.Errorf("failed to dial to %s", target) } defer resp.Body.Close() if resp.StatusCode != 200 { return nil, fmt.Errorf("unexpected HTTP status code: %d", resp.StatusCode) } content, err := buf.ReadAllToBytes(resp.Body) if err != nil { return nil, fmt.Errorf("failed to read HTTP response") } return content, nil } func showResponese(m proto.Message) { if isNil(m) { return } b := new(strings.Builder) e := json.NewEncoder(b) e.SetIndent("", " ") e.SetEscapeHTML(false) err := e.Encode(m) msg := "" if err != nil { msg = fmt.Sprintf("error: %s\n\n%v", err, m) } else { msg = strings.TrimSpace(b.String()) } if msg == "" { return } fmt.Println(msg) } func isNil(i interface{}) bool { vi := reflect.ValueOf(i) if vi.Kind() == reflect.Ptr { return vi.IsNil() } return i == nil }