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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_PASSWORD_MANAGER_NATIVE_BACKEND_KWALLET_X_H_
#define CHROME_BROWSER_PASSWORD_MANAGER_NATIVE_BACKEND_KWALLET_X_H_
#include <string>
#include "base/basictypes.h"
#include "base/memory/ref_counted.h"
#include "base/time/time.h"
#include "chrome/browser/password_manager/password_store_factory.h"
#include "chrome/browser/password_manager/password_store_x.h"
#include "chrome/browser/profiles/profile.h"
class Pickle;
class PickleIterator;
namespace autofill {
struct PasswordForm;
}
namespace base {
class WaitableEvent;
}
namespace dbus {
class Bus;
class ObjectProxy;
}
// NativeBackend implementation using KWallet.
class NativeBackendKWallet : public PasswordStoreX::NativeBackend {
public:
explicit NativeBackendKWallet(LocalProfileId id);
virtual ~NativeBackendKWallet();
virtual bool Init() OVERRIDE;
// Implements NativeBackend interface.
virtual password_manager::PasswordStoreChangeList AddLogin(
const autofill::PasswordForm& form) OVERRIDE;
virtual bool UpdateLogin(
const autofill::PasswordForm& form,
password_manager::PasswordStoreChangeList* changes) OVERRIDE;
virtual bool RemoveLogin(const autofill::PasswordForm& form) OVERRIDE;
virtual bool RemoveLoginsCreatedBetween(
base::Time delete_begin,
base::Time delete_end,
password_manager::PasswordStoreChangeList* changes) OVERRIDE;
virtual bool RemoveLoginsSyncedBetween(
base::Time delete_begin,
base::Time delete_end,
password_manager::PasswordStoreChangeList* changes) OVERRIDE;
virtual bool GetLogins(const autofill::PasswordForm& form,
PasswordFormList* forms) OVERRIDE;
virtual bool GetAutofillableLogins(PasswordFormList* forms) OVERRIDE;
virtual bool GetBlacklistLogins(PasswordFormList* forms) OVERRIDE;
protected:
// Invalid handle returned by WalletHandle().
static const int kInvalidKWalletHandle = -1;
// Internally used by Init(), but also for testing to provide a mock bus.
bool InitWithBus(scoped_refptr<dbus::Bus> optional_bus);
// Deserializes a list of PasswordForms from the wallet.
static void DeserializeValue(const std::string& signon_realm,
const Pickle& pickle,
PasswordFormList* forms);
private:
enum InitResult {
INIT_SUCCESS, // Init succeeded.
TEMPORARY_FAIL, // Init failed, but might succeed after StartKWalletd().
PERMANENT_FAIL // Init failed, and is not likely to work later either.
};
enum TimestampToCompare {
CREATION_TIMESTAMP,
SYNC_TIMESTAMP,
};
// Initialization.
bool StartKWalletd();
InitResult InitWallet();
void InitOnDBThread(scoped_refptr<dbus::Bus> optional_bus,
base::WaitableEvent* event,
bool* success);
// Reads PasswordForms from the wallet that match the given signon_realm.
bool GetLoginsList(PasswordFormList* forms,
const std::string& signon_realm,
int wallet_handle);
// Reads PasswordForms from the wallet with the given autofillability state.
bool GetLoginsList(PasswordFormList* forms,
bool autofillable,
int wallet_handle);
// Helper for some of the above GetLoginsList() methods.
bool GetAllLogins(PasswordFormList* forms, int wallet_handle);
// Writes a list of PasswordForms to the wallet with the given signon_realm.
// Overwrites any existing list for this signon_realm. Removes the entry if
// |forms| is empty. Returns true on success.
bool SetLoginsList(const PasswordFormList& forms,
const std::string& signon_realm,
int wallet_handle);
// Removes password created/synced in the time interval. Returns |true| if the
// operation succeeded. |changes| will contain the changes applied.
bool RemoveLoginsBetween(base::Time delete_begin,
base::Time delete_end,
TimestampToCompare date_to_compare,
password_manager::PasswordStoreChangeList* changes);
// Opens the wallet and ensures that the "Chrome Form Data" folder exists.
// Returns kInvalidWalletHandle on error.
int WalletHandle();
// Serializes a list of PasswordForms to be stored in the wallet.
static void SerializeValue(const PasswordFormList& forms, Pickle* pickle);
// Deserializes a list of PasswordForms from the wallet.
// |size_32| controls reading the size field within the pickle as 32 bits.
// We used to use Pickle::WriteSize() to write the number of password forms,
// but that has a different size on 32- and 64-bit systems. So, now we always
// write a 64-bit quantity, but we support trying to read it as either size
// when reading old pickles that fail to deserialize using the native size.
static bool DeserializeValueSize(const std::string& signon_realm,
const PickleIterator& iter,
int version, bool size_32, bool warn_only,
PasswordFormList* forms);
// In case the fields in the pickle ever change, version them so we can try to
// read old pickles. (Note: do not eat old pickles past the expiration date.)
static const int kPickleVersion = 4;
// Generates a profile-specific folder name based on profile_id_.
std::string GetProfileSpecificFolderName() const;
// The local profile id, used to generate the folder name.
const LocalProfileId profile_id_;
// The KWallet folder name, possibly based on the local profile id.
std::string folder_name_;
// DBus handle for communication with klauncher and kwalletd.
scoped_refptr<dbus::Bus> session_bus_;
// Object proxy for kwalletd. We do not own this.
dbus::ObjectProxy* kwallet_proxy_;
// The name of the wallet we've opened. Set during Init().
std::string wallet_name_;
// The application name (e.g. "Chromium"), shown in KWallet auth dialogs.
const std::string app_name_;
DISALLOW_COPY_AND_ASSIGN(NativeBackendKWallet);
};
#endif // CHROME_BROWSER_PASSWORD_MANAGER_NATIVE_BACKEND_KWALLET_X_H_
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