chrome/browser/password_manager/native_backend_kwallet_x.h

   1 // Copyright (c) 2012 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 CHROME_BROWSER_PASSWORD_MANAGER_NATIVE_BACKEND_KWALLET_X_H_
   6 #define CHROME_BROWSER_PASSWORD_MANAGER_NATIVE_BACKEND_KWALLET_X_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/time/time.h"
  13 #include "chrome/browser/password_manager/password_store_factory.h"
  14 #include "chrome/browser/password_manager/password_store_x.h"
  15 #include "chrome/browser/profiles/profile.h"
  16
  17 class Pickle;
  18 class PickleIterator;
  19
  20 namespace autofill {
  21 struct PasswordForm;
  22 }
  23
  24 namespace base {
  25 class WaitableEvent;
  26 }
  27
  28 namespace dbus {
  29 class Bus;
  30 class ObjectProxy;
  31 }
  32
  33 // NativeBackend implementation using KWallet.
  34 class NativeBackendKWallet : public PasswordStoreX::NativeBackend {
  35  public:
  36   explicit NativeBackendKWallet(LocalProfileId id);
  37
  38   virtual ~NativeBackendKWallet();
  39
  40   virtual bool Init() OVERRIDE;
  41
  42   // Implements NativeBackend interface.
  43   virtual bool AddLogin(const autofill::PasswordForm& form) OVERRIDE;
  44   virtual bool UpdateLogin(const autofill::PasswordForm& form) OVERRIDE;
  45   virtual bool RemoveLogin(const autofill::PasswordForm& form) OVERRIDE;
  46   virtual bool RemoveLoginsCreatedBetween(
  47       const base::Time& delete_begin, const base::Time& delete_end) OVERRIDE;
  48   virtual bool GetLogins(const autofill::PasswordForm& form,
  49                          PasswordFormList* forms) OVERRIDE;
  50   virtual bool GetLoginsCreatedBetween(const base::Time& get_begin,
  51                                        const base::Time& get_end,
  52                                        PasswordFormList* forms) OVERRIDE;
  53   virtual bool GetAutofillableLogins(PasswordFormList* forms) OVERRIDE;
  54   virtual bool GetBlacklistLogins(PasswordFormList* forms) OVERRIDE;
  55
  56  protected:
  57   // Invalid handle returned by WalletHandle().
  58   static const int kInvalidKWalletHandle = -1;
  59
  60   // Internally used by Init(), but also for testing to provide a mock bus.
  61   bool InitWithBus(scoped_refptr<dbus::Bus> optional_bus);
  62
  63   // Deserializes a list of PasswordForms from the wallet.
  64   static void DeserializeValue(const std::string& signon_realm,
  65                                const Pickle& pickle,
  66                                PasswordFormList* forms);
  67
  68  private:
  69   enum InitResult {
  70     INIT_SUCCESS,    // Init succeeded.
  71     TEMPORARY_FAIL,  // Init failed, but might succeed after StartKWalletd().
  72     PERMANENT_FAIL   // Init failed, and is not likely to work later either.
  73   };
  74
  75   // Initialization.
  76   bool StartKWalletd();
  77   InitResult InitWallet();
  78   void InitOnDBThread(scoped_refptr<dbus::Bus> optional_bus,
  79                       base::WaitableEvent* event,
  80                       bool* success);
  81
  82   // Reads PasswordForms from the wallet that match the given signon_realm.
  83   bool GetLoginsList(PasswordFormList* forms,
  84                      const std::string& signon_realm,
  85                      int wallet_handle);
  86
  87   // Reads PasswordForms from the wallet with the given autofillability state.
  88   bool GetLoginsList(PasswordFormList* forms,
  89                      bool autofillable,
  90                      int wallet_handle);
  91
  92   // Reads PasswordForms from the wallet created in the given time range.
  93   bool GetLoginsList(PasswordFormList* forms,
  94                      const base::Time& begin,
  95                      const base::Time& end,
  96                      int wallet_handle);
  97
  98   // Helper for some of the above GetLoginsList() methods.
  99   bool GetAllLogins(PasswordFormList* forms, int wallet_handle);
 100
 101   // Writes a list of PasswordForms to the wallet with the given signon_realm.
 102   // Overwrites any existing list for this signon_realm. Removes the entry if
 103   // |forms| is empty. Returns true on success.
 104   bool SetLoginsList(const PasswordFormList& forms,
 105                      const std::string& signon_realm,
 106                      int wallet_handle);
 107
 108   // Opens the wallet and ensures that the "Chrome Form Data" folder exists.
 109   // Returns kInvalidWalletHandle on error.
 110   int WalletHandle();
 111
 112   // Serializes a list of PasswordForms to be stored in the wallet.
 113   static void SerializeValue(const PasswordFormList& forms, Pickle* pickle);
 114
 115   // Deserializes a list of PasswordForms from the wallet.
 116   // |size_32| controls reading the size field within the pickle as 32 bits.
 117   // We used to use Pickle::WriteSize() to write the number of password forms,
 118   // but that has a different size on 32- and 64-bit systems. So, now we always
 119   // write a 64-bit quantity, but we support trying to read it as either size
 120   // when reading old pickles that fail to deserialize using the native size.
 121   static bool DeserializeValueSize(const std::string& signon_realm,
 122                                    const PickleIterator& iter,
 123                                    int version, bool size_32, bool warn_only,
 124                                    PasswordFormList* forms);
 125
 126   // In case the fields in the pickle ever change, version them so we can try to
 127   // read old pickles. (Note: do not eat old pickles past the expiration date.)
 128   static const int kPickleVersion = 2;
 129
 130   // Generates a profile-specific folder name based on profile_id_.
 131   std::string GetProfileSpecificFolderName() const;
 132
 133   // The local profile id, used to generate the folder name.
 134   const LocalProfileId profile_id_;
 135
 136   // The KWallet folder name, possibly based on the local profile id.
 137   std::string folder_name_;
 138
 139   // DBus handle for communication with klauncher and kwalletd.
 140   scoped_refptr<dbus::Bus> session_bus_;
 141   // Object proxy for kwalletd. We do not own this.
 142   dbus::ObjectProxy* kwallet_proxy_;
 143
 144   // The name of the wallet we've opened. Set during Init().
 145   std::string wallet_name_;
 146   // The application name (e.g. "Chromium"), shown in KWallet auth dialogs.
 147   const std::string app_name_;
 148
 149   DISALLOW_COPY_AND_ASSIGN(NativeBackendKWallet);
 150 };
 151
 152 #endif  // CHROME_BROWSER_PASSWORD_MANAGER_NATIVE_BACKEND_KWALLET_X_H_