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