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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/chromeos/drive/file_system_util.h"
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/i18n/icu_string_conversions.h"
#include "base/json/json_file_value_serializer.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/prefs/pref_service.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/thread_task_runner_handle.h"
#include "base/threading/sequenced_worker_pool.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/chromeos/drive/drive.pb.h"
#include "chrome/browser/chromeos/drive/drive_integration_service.h"
#include "chrome/browser/chromeos/drive/drive_pref_names.h"
#include "chrome/browser/chromeos/drive/file_system_core_util.h"
#include "chrome/browser/chromeos/drive/file_system_interface.h"
#include "chrome/browser/chromeos/drive/job_list.h"
#include "chrome/browser/chromeos/drive/write_on_cache_file.h"
#include "chrome/browser/chromeos/profiles/profile_helper.h"
#include "chrome/browser/chromeos/profiles/profile_util.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/chrome_paths_internal.h"
#include "chromeos/chromeos_constants.h"
#include "components/user_manager/user_manager.h"
#include "content/public/browser/browser_thread.h"
#include "storage/browser/fileapi/file_system_url.h"
using content::BrowserThread;
namespace drive {
namespace util {
namespace {
// Returns DriveIntegrationService instance, if Drive is enabled.
// Otherwise, NULL.
DriveIntegrationService* GetIntegrationServiceByProfile(Profile* profile) {
DriveIntegrationService* service =
DriveIntegrationServiceFactory::FindForProfile(profile);
if (!service || !service->IsMounted())
return NULL;
return service;
}
} // namespace
base::FilePath GetDriveMountPointPath(Profile* profile) {
std::string id = chromeos::ProfileHelper::GetUserIdHashFromProfile(profile);
if (id.empty() || id == chrome::kLegacyProfileDir) {
// ProfileHelper::GetUserIdHashFromProfile works only when multi-profile is
// enabled. In that case, we fall back to use UserManager (it basically just
// returns currently active users's hash in such a case.) I still try
// ProfileHelper first because it works better in tests.
const user_manager::User* const user =
user_manager::UserManager::IsInitialized()
? chromeos::ProfileHelper::Get()->GetUserByProfile(
profile->GetOriginalProfile())
: NULL;
if (user)
id = user->username_hash();
}
return GetDriveMountPointPathForUserIdHash(id);
}
FileSystemInterface* GetFileSystemByProfile(Profile* profile) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DriveIntegrationService* integration_service =
GetIntegrationServiceByProfile(profile);
return integration_service ? integration_service->file_system() : NULL;
}
FileSystemInterface* GetFileSystemByProfileId(void* profile_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
// |profile_id| needs to be checked with ProfileManager::IsValidProfile
// before using it.
Profile* profile = reinterpret_cast<Profile*>(profile_id);
if (!g_browser_process->profile_manager()->IsValidProfile(profile))
return NULL;
return GetFileSystemByProfile(profile);
}
DriveAppRegistry* GetDriveAppRegistryByProfile(Profile* profile) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DriveIntegrationService* integration_service =
GetIntegrationServiceByProfile(profile);
return integration_service ? integration_service->drive_app_registry() : NULL;
}
DriveServiceInterface* GetDriveServiceByProfile(Profile* profile) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DriveIntegrationService* integration_service =
GetIntegrationServiceByProfile(profile);
return integration_service ? integration_service->drive_service() : NULL;
}
Profile* ExtractProfileFromPath(const base::FilePath& path) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
const std::vector<Profile*>& profiles =
g_browser_process->profile_manager()->GetLoadedProfiles();
for (size_t i = 0; i < profiles.size(); ++i) {
Profile* original_profile = profiles[i]->GetOriginalProfile();
if (original_profile == profiles[i] &&
!chromeos::ProfileHelper::IsSigninProfile(original_profile)) {
const base::FilePath base = GetDriveMountPointPath(original_profile);
if (base == path || base.IsParent(path))
return original_profile;
}
}
return NULL;
}
base::FilePath ExtractDrivePathFromFileSystemUrl(
const storage::FileSystemURL& url) {
if (!url.is_valid() || url.type() != storage::kFileSystemTypeDrive)
return base::FilePath();
return ExtractDrivePath(url.path());
}
base::FilePath GetCacheRootPath(Profile* profile) {
base::FilePath cache_base_path;
chrome::GetUserCacheDirectory(profile->GetPath(), &cache_base_path);
base::FilePath cache_root_path =
cache_base_path.Append(chromeos::kDriveCacheDirname);
static const base::FilePath::CharType kFileCacheVersionDir[] =
FILE_PATH_LITERAL("v1");
return cache_root_path.Append(kFileCacheVersionDir);
}
void PrepareWritableFileAndRun(Profile* profile,
const base::FilePath& path,
const PrepareWritableFileCallback& callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DCHECK(!callback.is_null());
FileSystemInterface* file_system = GetFileSystemByProfile(profile);
if (!file_system || !IsUnderDriveMountPoint(path)) {
content::BrowserThread::GetBlockingPool()->PostTask(
FROM_HERE, base::Bind(callback, FILE_ERROR_FAILED, base::FilePath()));
return;
}
WriteOnCacheFile(file_system, ExtractDrivePath(path),
std::string(), // mime_type
callback);
}
void EnsureDirectoryExists(Profile* profile,
const base::FilePath& directory,
const FileOperationCallback& callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DCHECK(!callback.is_null());
if (IsUnderDriveMountPoint(directory)) {
FileSystemInterface* file_system = GetFileSystemByProfile(profile);
DCHECK(file_system);
file_system->CreateDirectory(ExtractDrivePath(directory),
true /* is_exclusive */,
true /* is_recursive */, callback);
} else {
base::ThreadTaskRunnerHandle::Get()->PostTask(
FROM_HERE, base::Bind(callback, FILE_ERROR_OK));
}
}
bool IsDriveEnabledForProfile(Profile* profile) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!chromeos::IsProfileAssociatedWithGaiaAccount(profile))
return false;
// Disable Drive if preference is set. This can happen with commandline flag
// --disable-drive or enterprise policy, or with user settings.
if (profile->GetPrefs()->GetBoolean(prefs::kDisableDrive))
return false;
return true;
}
ConnectionStatusType GetDriveConnectionStatus(Profile* profile) {
drive::DriveServiceInterface* const drive_service =
drive::util::GetDriveServiceByProfile(profile);
if (!drive_service)
return DRIVE_DISCONNECTED_NOSERVICE;
if (net::NetworkChangeNotifier::IsOffline())
return DRIVE_DISCONNECTED_NONETWORK;
if (!drive_service->CanSendRequest())
return DRIVE_DISCONNECTED_NOTREADY;
const bool is_connection_cellular =
net::NetworkChangeNotifier::IsConnectionCellular(
net::NetworkChangeNotifier::GetConnectionType());
const bool disable_sync_over_celluar =
profile->GetPrefs()->GetBoolean(prefs::kDisableDriveOverCellular);
if (is_connection_cellular && disable_sync_over_celluar)
return DRIVE_CONNECTED_METERED;
return DRIVE_CONNECTED;
}
} // namespace util
} // namespace drive
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