add gateway

service/meta.go

@@ -30,6 +30,17 @@ func ParseMetaCtx(ctx context.Context, opts *ParseOptions) (*Meta, error) {
 		return nil, errcode.ErrJWTAuthNotFound
 	}
 
+	// 安全获取 metadata 中的值
+	identityValues := md.Get("authorization_identity")
+	clientValues := md.Get("client")
+
+	if len(identityValues) == 0 {
+		return nil, errcode.ErrJWTAuthNotFound
+	}
+	if len(clientValues) == 0 {
+		return nil, errcode.ErrJWTAuthNotFound
+	}
+
 	meta := &Meta{
 		IDENTITY: md["authorization_identity"][0],
 		CLIENT:   md["client"][0],