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 REMOTING_PROTOCOL_PAIRING_REGISTRY_DELEGATE_WIN_H_
6#define REMOTING_PROTOCOL_PAIRING_REGISTRY_DELEGATE_WIN_H_
7
8#include <string>
9
10#include "base/basictypes.h"
11#include "base/compiler_specific.h"
12#include "base/memory/scoped_ptr.h"
13#include "base/win/registry.h"
14#include "remoting/protocol/pairing_registry.h"
15
16namespace base {
17class ListValue;
18}  // namespace base
19
20namespace remoting {
21
22#if defined(OFFICIAL_BUILD)
23const wchar_t kPairingRegistryKeyName[] =
24    L"SOFTWARE\\Google\\Chrome Remote Desktop\\paired-clients";
25#else
26const wchar_t kPairingRegistryKeyName[] =
27    L"SOFTWARE\\Chromoting\\paired-clients";
28#endif
29
30const wchar_t kPairingRegistryClientsKeyName[] = L"secrets";
31const wchar_t kPairingRegistrySecretsKeyName[] = L"clients";
32
33// Stores client pairing information in Windows registry. Two separate registry
34// keys are used:
35//  - |privileged| - contains the shared secrets of all pairings. This key must
36//                   be protected by a strong ACL denying access to unprivileged
37//                   code.
38//  - |unprivileged| - contains the rest of pairing state.
39//
40// Creator of this object is responsible for passing the registry key handles
41// with appropriate access. |privileged| may be NULL if read-only access is
42// sufficient. Shared secrets will not be returned in such a case.
43class PairingRegistryDelegateWin
44    : public protocol::PairingRegistry::Delegate {
45 public:
46  PairingRegistryDelegateWin();
47  virtual ~PairingRegistryDelegateWin();
48
49  // Passes the root keys to be used to access the pairing registry store.
50  // |privileged| is optional and may be NULL. The caller retains ownership of
51  // the passed handles.
52  bool SetRootKeys(HKEY privileged, HKEY unprivileged);
53
54  // PairingRegistry::Delegate interface
55  virtual scoped_ptr<base::ListValue> LoadAll() OVERRIDE;
56  virtual bool DeleteAll() OVERRIDE;
57  virtual protocol::PairingRegistry::Pairing Load(
58      const std::string& client_id) OVERRIDE;
59  virtual bool Save(const protocol::PairingRegistry::Pairing& pairing) OVERRIDE;
60  virtual bool Delete(const std::string& client_id) OVERRIDE;
61
62 private:
63  base::win::RegKey privileged_;
64  base::win::RegKey unprivileged_;
65
66  DISALLOW_COPY_AND_ASSIGN(PairingRegistryDelegateWin);
67};
68
69}  // namespace remoting
70
71#endif  // REMOTING_PROTOCOL_PAIRING_REGISTRY_DELEGATE_WIN_H_
72