remoting/host/pairing_registry_delegate_win.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 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
  16 namespace base {
  17 class ListValue;
  18 }  // namespace base
  19
  20 namespace remoting {
  21
  22 #if defined(OFFICIAL_BUILD)
  23 const wchar_t kPairingRegistryKeyName[] =
  24     L"SOFTWARE\\Google\\Chrome Remote Desktop\\paired-clients";
  25 #else
  26 const wchar_t kPairingRegistryKeyName[] =
  27     L"SOFTWARE\\Chromoting\\paired-clients";
  28 #endif
  29
  30 const wchar_t kPairingRegistryClientsKeyName[] = L"clients";
  31 const wchar_t kPairingRegistrySecretsKeyName[] = L"secrets";
  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 nullptr if read-only access is
  42 // sufficient. Shared secrets will not be returned in such a case.
  43 class PairingRegistryDelegateWin
  44     : public protocol::PairingRegistry::Delegate {
  45  public:
  46   PairingRegistryDelegateWin();
  47   ~PairingRegistryDelegateWin() override;
  48
  49   // Passes the root keys to be used to access the pairing registry store.
  50   // |privileged| is optional and may be nullptr. The caller retains ownership
  51   // of the passed handles.
  52   bool SetRootKeys(HKEY privileged, HKEY unprivileged);
  53
  54   // PairingRegistry::Delegate interface
  55   scoped_ptr<base::ListValue> LoadAll() override;
  56   bool DeleteAll() override;
  57   protocol::PairingRegistry::Pairing Load(
  58       const std::string& client_id) override;
  59   bool Save(const protocol::PairingRegistry::Pairing& pairing) override;
  60   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_