Index: device/nfc/android/java/src/org/chromium/device/nfc/NfcMessageValidator.java |
diff --git a/device/nfc/android/java/src/org/chromium/device/nfc/NfcMessageValidator.java b/device/nfc/android/java/src/org/chromium/device/nfc/NfcMessageValidator.java |
new file mode 100644 |
index 0000000000000000000000000000000000000000..0c7cc54b5001e01d50eee5c3dd5e400bb3762c0f |
--- /dev/null |
+++ b/device/nfc/android/java/src/org/chromium/device/nfc/NfcMessageValidator.java |
@@ -0,0 +1,44 @@ |
+// Copyright 2016 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+package org.chromium.device.nfc; |
+ |
+import org.chromium.device.nfc.mojom.NfcMessage; |
+import org.chromium.device.nfc.mojom.NfcRecord; |
+import org.chromium.device.nfc.mojom.NfcRecordType; |
+ |
+/** |
+ * Utility class that provides validation of NfcMessage. |
+ */ |
+public final class NfcMessageValidator { |
+ /** |
+ * Validates NfcMessage. |
+ * |
+ * @param message to be validated. |
+ * @return true if message is valid, false otherwise. |
+ */ |
+ public static boolean isValid(NfcMessage message) { |
+ if (message == null || message.data == null || message.data.length == 0) { |
+ return false; |
+ } |
+ |
+ for (int i = 0; i < message.data.length; ++i) { |
+ if (!isValid(message.data[i])) return false; |
+ } |
+ return true; |
+ } |
+ |
+ private static boolean isValid(NfcRecord record) { |
+ if (record == null || record.data == null || record.data.length == 0) { |
+ return false; |
+ } |
+ |
+ if (record.mediaType == null || record.mediaType.isEmpty() |
+ || record.recordType == NfcRecordType.EMPTY) { |
+ return false; |
+ } |
+ |
+ return true; |
+ } |
+} |