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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.
#include "chrome/browser/password_manager/password_store_factory.h"
#include "base/command_line.h"
#include "base/environment.h"
#include "base/prefs/pref_service.h"
#include "chrome/browser/password_manager/login_database.h"
#include "chrome/browser/password_manager/password_store.h"
#include "chrome/browser/password_manager/password_store_default.h"
#include "chrome/browser/profiles/incognito_helpers.h"
#include "chrome/browser/webdata/web_data_service.h"
#include "chrome/browser/webdata/web_data_service_factory.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
#include "components/browser_context_keyed_service/browser_context_dependency_manager.h"
#include "components/user_prefs/pref_registry_syncable.h"
#if defined(OS_WIN)
#include "chrome/browser/password_manager/password_store_win.h"
#elif defined(OS_MACOSX)
#include "chrome/browser/password_manager/password_store_mac.h"
#include "crypto/apple_keychain.h"
#include "crypto/mock_apple_keychain.h"
#elif defined(OS_CHROMEOS) || defined(OS_ANDROID)
// Don't do anything. We're going to use the default store.
#elif defined(USE_X11)
#include "base/nix/xdg_util.h"
#if defined(USE_GNOME_KEYRING)
#include "chrome/browser/password_manager/native_backend_gnome_x.h"
#endif
#include "chrome/browser/password_manager/native_backend_kwallet_x.h"
#include "chrome/browser/password_manager/password_store_x.h"
#endif
#if !defined(OS_CHROMEOS) && defined(USE_X11)
namespace {
const LocalProfileId kInvalidLocalProfileId =
static_cast<LocalProfileId>(0);
} // namespace
#endif
scoped_refptr<PasswordStore> PasswordStoreFactory::GetForProfile(
Profile* profile,
Profile::ServiceAccessType sat) {
if (sat == Profile::IMPLICIT_ACCESS && profile->IsOffTheRecord()) {
NOTREACHED() << "This profile is OffTheRecord";
return NULL;
}
return static_cast<PasswordStore*>(
GetInstance()->GetServiceForProfile(profile, true).get());
}
// static
PasswordStoreFactory* PasswordStoreFactory::GetInstance() {
return Singleton<PasswordStoreFactory>::get();
}
PasswordStoreFactory::PasswordStoreFactory()
: RefcountedProfileKeyedServiceFactory(
"PasswordStore",
ProfileDependencyManager::GetInstance()) {
DependsOn(WebDataServiceFactory::GetInstance());
}
PasswordStoreFactory::~PasswordStoreFactory() {}
#if !defined(OS_CHROMEOS) && defined(USE_X11)
LocalProfileId PasswordStoreFactory::GetLocalProfileId(
PrefService* prefs) const {
LocalProfileId id = prefs->GetInteger(prefs::kLocalProfileId);
if (id == kInvalidLocalProfileId) {
// Note that there are many more users than this. Thus, by design, this is
// not a unique id. However, it is large enough that it is very unlikely
// that it would be repeated twice on a single machine. It is still possible
// for that to occur though, so the potential results of it actually
// happening should be considered when using this value.
static const LocalProfileId kLocalProfileIdMask =
static_cast<LocalProfileId>((1 << 24) - 1);
do {
id = rand() & kLocalProfileIdMask;
// TODO(mdm): scan other profiles to make sure they are not using this id?
} while (id == kInvalidLocalProfileId);
prefs->SetInteger(prefs::kLocalProfileId, id);
}
return id;
}
#endif
scoped_refptr<RefcountedProfileKeyedService>
PasswordStoreFactory::BuildServiceInstanceFor(
content::BrowserContext* context) const {
Profile* profile = static_cast<Profile*>(context);
scoped_refptr<PasswordStore> ps;
base::FilePath login_db_file_path = profile->GetPath();
login_db_file_path = login_db_file_path.Append(chrome::kLoginDataFileName);
LoginDatabase* login_db = new LoginDatabase();
{
// TODO(paivanof@gmail.com): execution of login_db->Init() should go
// to DB thread. http://crbug.com/138903
base::ThreadRestrictions::ScopedAllowIO allow_io;
if (!login_db->Init(login_db_file_path)) {
LOG(ERROR) << "Could not initialize login database.";
delete login_db;
return NULL;
}
}
#if defined(OS_WIN)
ps = new PasswordStoreWin(
login_db, profile,
WebDataService::FromBrowserContext(profile));
#elif defined(OS_MACOSX)
if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kUseMockKeychain)) {
ps = new PasswordStoreMac(new crypto::MockAppleKeychain(), login_db);
} else {
ps = new PasswordStoreMac(new crypto::AppleKeychain(), login_db);
}
#elif defined(OS_CHROMEOS) || defined(OS_ANDROID)
// For now, we use PasswordStoreDefault. We might want to make a native
// backend for PasswordStoreX (see below) in the future though.
ps = new PasswordStoreDefault(login_db, profile);
#elif defined(USE_X11)
// On POSIX systems, we try to use the "native" password management system of
// the desktop environment currently running, allowing GNOME Keyring in XFCE.
// (In all cases we fall back on the basic store in case of failure.)
base::nix::DesktopEnvironment desktop_env;
std::string store_type =
CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
switches::kPasswordStore);
if (store_type == "kwallet") {
desktop_env = base::nix::DESKTOP_ENVIRONMENT_KDE4;
} else if (store_type == "gnome") {
desktop_env = base::nix::DESKTOP_ENVIRONMENT_GNOME;
} else if (store_type == "basic") {
desktop_env = base::nix::DESKTOP_ENVIRONMENT_OTHER;
} else {
// Detect the store to use automatically.
scoped_ptr<base::Environment> env(base::Environment::Create());
desktop_env = base::nix::GetDesktopEnvironment(env.get());
const char* name = base::nix::GetDesktopEnvironmentName(desktop_env);
VLOG(1) << "Password storage detected desktop environment: "
<< (name ? name : "(unknown)");
}
PrefService* prefs = profile->GetPrefs();
LocalProfileId id = GetLocalProfileId(prefs);
scoped_ptr<PasswordStoreX::NativeBackend> backend;
if (desktop_env == base::nix::DESKTOP_ENVIRONMENT_KDE4) {
// KDE3 didn't use DBus, which our KWallet store uses.
VLOG(1) << "Trying KWallet for password storage.";
backend.reset(new NativeBackendKWallet(id, prefs));
if (backend->Init())
VLOG(1) << "Using KWallet for password storage.";
else
backend.reset();
} else if (desktop_env == base::nix::DESKTOP_ENVIRONMENT_GNOME ||
desktop_env == base::nix::DESKTOP_ENVIRONMENT_UNITY ||
desktop_env == base::nix::DESKTOP_ENVIRONMENT_XFCE) {
#if defined(USE_GNOME_KEYRING)
VLOG(1) << "Trying GNOME keyring for password storage.";
backend.reset(new NativeBackendGnome(id, prefs));
if (backend->Init())
VLOG(1) << "Using GNOME keyring for password storage.";
else
backend.reset();
#endif // defined(USE_GNOME_KEYRING)
}
if (!backend.get()) {
LOG(WARNING) << "Using basic (unencrypted) store for password storage. "
"See http://code.google.com/p/chromium/wiki/LinuxPasswordStorage for "
"more information about password storage options.";
}
ps = new PasswordStoreX(login_db, profile, backend.release());
#else
NOTIMPLEMENTED();
#endif
if (!ps)
delete login_db;
if (!ps || !ps->Init()) {
NOTREACHED() << "Could not initialize password manager.";
return NULL;
}
return ps;
}
void PasswordStoreFactory::RegisterUserPrefs(
user_prefs::PrefRegistrySyncable* registry) {
#if !defined(OS_CHROMEOS) && defined(USE_X11)
registry->RegisterIntegerPref(
prefs::kLocalProfileId,
kInvalidLocalProfileId,
user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
// Notice that the preprocessor conditions above are exactly those that will
// result in using PasswordStoreX in CreatePasswordStore() below.
PasswordStoreX::RegisterUserPrefs(registry);
#endif
}
content::BrowserContext* PasswordStoreFactory::GetBrowserContextToUse(
content::BrowserContext* context) const {
return chrome::GetBrowserContextRedirectedInIncognito(context);
}
bool PasswordStoreFactory::ServiceIsNULLWhileTesting() const {
return true;
}
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