1// Copyright 2013 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#ifndef NET_QUIC_CRYPTO_STRIKE_REGISTER_CLIENT_H_
6#define NET_QUIC_CRYPTO_STRIKE_REGISTER_CLIENT_H_
7
8#include <string>
9
10#include "base/basictypes.h"
11#include "base/strings/string_piece.h"
12#include "net/base/net_export.h"
13#include "net/quic/quic_time.h"
14
15namespace net {
16
17// Interface implemented by clients that talk to strike registers
18// implemented as local or remote services.
19class NET_EXPORT_PRIVATE StrikeRegisterClient {
20 public:
21  // Single use callback that will be invoked once the validation
22  // operation is complete.
23  class NET_EXPORT_PRIVATE ResultCallback {
24   public:
25    ResultCallback() {}
26    virtual ~ResultCallback() {}
27    void Run(bool nonce_is_valid_and_unique) {
28      RunImpl(nonce_is_valid_and_unique);
29      delete this;
30    }
31
32   protected:
33    virtual void RunImpl(bool nonce_is_valid_and_unique) = 0;
34
35   private:
36    DISALLOW_COPY_AND_ASSIGN(ResultCallback);
37  };
38
39  StrikeRegisterClient() {}
40  virtual ~StrikeRegisterClient() {}
41
42  // Returns true iff the strike register knows about the given orbit.
43  virtual bool IsKnownOrbit(base::StringPiece orbit) const = 0;
44  // Validate a nonce for freshness and uniqueness.
45  // Will invoke cb->Run(ValidateResponse::nonce_is_valid_and_unique())
46  // once the asynchronous operation is complete.
47  virtual void VerifyNonceIsValidAndUnique(
48      base::StringPiece nonce,
49      QuicWallTime now,
50      ResultCallback* cb) = 0;
51
52 private:
53  DISALLOW_COPY_AND_ASSIGN(StrikeRegisterClient);
54};
55
56}  // namespace net
57
58#endif  // NET_QUIC_CRYPTO_STRIKE_REGISTER_CLIENT_H_
59