Initial commit

Initial public review release v0.10.0

lib/core/validator.go

@@ -0,0 +1,22 @@
+package core
+
+import (
+	"github.com/nspcc-dev/neofs-api-go/service"
+	"github.com/nspcc-dev/neofs-node/internal"
+)
+
+// ErrMissingKeySignPairs is returned by functions that expect
+// a non-empty SignKeyPair slice, but received empty.
+const ErrMissingKeySignPairs = internal.Error("missing key-signature pairs")
+
+// VerifyRequestWithSignatures checks if request has signatures and all of them are valid.
+//
+// Returns ErrMissingKeySignPairs if request does not have signatures.
+// Otherwise, behaves like service.VerifyRequestData.
+func VerifyRequestWithSignatures(req service.RequestVerifyData) error {
+	if len(req.GetSignKeyPairs()) == 0 {
+		return ErrMissingKeySignPairs
+	}
+
+	return service.VerifyRequestData(req)
+}