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/crypto/strike_register.h"
  14 #include "net/quic/quic_time.h"
  15
  16 namespace net {
  17
  18 // Interface implemented by clients that talk to strike registers
  19 // implemented as local or remote services.
  20 class NET_EXPORT_PRIVATE StrikeRegisterClient {
  21  public:
  22   // Single use callback that will be invoked once the validation
  23   // operation is complete.
  24   class NET_EXPORT_PRIVATE ResultCallback {
  25    public:
  26     ResultCallback() {}
  27     virtual ~ResultCallback() {}
  28     void Run(bool nonce_is_valid_and_unique, InsertStatus nonce_error) {
  29       RunImpl(nonce_is_valid_and_unique, nonce_error);
  30       delete this;
  31     }
  32
  33    protected:
  34     virtual void RunImpl(bool nonce_is_valid_and_unique,
  35                          InsertStatus nonce_error) = 0;
  36
  37    private:
  38     DISALLOW_COPY_AND_ASSIGN(ResultCallback);
  39   };
  40
  41   StrikeRegisterClient() {}
  42   virtual ~StrikeRegisterClient() {}
  43
  44   // Returns true iff the strike register knows about the given orbit.
  45   virtual bool IsKnownOrbit(base::StringPiece orbit) const = 0;
  46   // Validate a nonce for freshness and uniqueness.
  47   // Will invoke cb->Run(ValidateResponse::nonce_is_valid_and_unique(),
  48   //                     ValidateResponse::nonce_error())
  49   // once the asynchronous operation is complete.
  50   virtual void VerifyNonceIsValidAndUnique(
  51       base::StringPiece nonce,
  52       QuicWallTime now,
  53       ResultCallback* cb) = 0;
  54
  55  private:
  56   DISALLOW_COPY_AND_ASSIGN(StrikeRegisterClient);
  57 };
  58
  59 }  // namespace net
  60
  61 #endif  // NET_QUIC_CRYPTO_STRIKE_REGISTER_CLIENT_H_