1 // Copyright 2018 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "mojo/public/cpp/base/unguessable_token_mojom_traits.h"
6 
7 namespace mojo {
8 
9 // static
10 bool StructTraits<mojo_base::mojom::UnguessableTokenDataView,
11                   base::UnguessableToken>::
Read(mojo_base::mojom::UnguessableTokenDataView data,base::UnguessableToken * out)12     Read(mojo_base::mojom::UnguessableTokenDataView data,
13          base::UnguessableToken* out) {
14   uint64_t high = data.high();
15   uint64_t low = data.low();
16 
17   // Receiving a zeroed UnguessableToken is a security issue.
18   if (high == 0 && low == 0)
19     return false;
20 
21   *out = base::UnguessableToken::Deserialize(high, low);
22   return true;
23 }
24 
25 }  // namespace mojo