net/quic/crypto/strike_register_client.h

   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
  15 namespace net {
  16
  17 // Interface implemented by clients that talk to strike registers
  18 // implemented as local or remote services.
  19 class 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_