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// Copyright 2013 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/file_manager/path_util.h"
#include "base/files/file_path.h"
#include "base/logging.h"
#include "base/sys_info.h"
#include "chrome/browser/chromeos/drive/file_system_util.h"
#include "chrome/browser/chromeos/login/users/user.h"
#include "chrome/browser/chromeos/login/users/user_manager.h"
#include "chrome/browser/chromeos/profiles/profile_helper.h"
#include "chrome/browser/download/download_prefs.h"
#include "chrome/browser/profiles/profile.h"
#include "net/base/escape.h"
namespace file_manager {
namespace util {
namespace {
const char kDownloadsFolderName[] = "Downloads";
const base::FilePath::CharType kOldDownloadsFolderPath[] =
FILE_PATH_LITERAL("/home/chronos/user/Downloads");
const base::FilePath::CharType kOldDriveFolderPath[] =
FILE_PATH_LITERAL("/special/drive");
// Unintended path introduced in crbug.com/363026.
const base::FilePath::CharType kBuggyDriveFolderPath[] =
FILE_PATH_LITERAL("/special/drive-user");
} // namespace
base::FilePath GetDownloadsFolderForProfile(Profile* profile) {
// On non-ChromeOS system (test+development), the primary profile uses
// $HOME/Downloads for ease for accessing local files for debugging.
if (!base::SysInfo::IsRunningOnChromeOS() &&
chromeos::UserManager::IsInitialized()) {
const chromeos::User* const user =
chromeos::UserManager::Get()->GetUserByProfile(
profile->GetOriginalProfile());
const chromeos::User* const primary_user =
chromeos::UserManager::Get()->GetPrimaryUser();
if (user == primary_user)
return DownloadPrefs::GetDefaultDownloadDirectory();
}
return profile->GetPath().AppendASCII(kDownloadsFolderName);
}
bool MigratePathFromOldFormat(Profile* profile,
const base::FilePath& old_path,
base::FilePath* new_path) {
// M34:
// /home/chronos/user/Downloads/xxx => /home/chronos/u-hash/Downloads/xxx
// /special/drive => /special/drive-xxx
//
// Old path format comes either from stored old settings or from the initial
// default value set in DownloadPrefs::RegisterProfilePrefs in profile-unaware
// code location. In the former case it is "/home/chronos/user/Downloads",
// and in the latter case it is DownloadPrefs::GetDefaultDownloadDirectory().
// Those two paths coincides as long as $HOME=/home/chronos/user, but the
// environment variable is phasing out (crbug.com/333031) so we care both.
const base::FilePath downloads = GetDownloadsFolderForProfile(profile);
const base::FilePath drive = drive::util::GetDriveMountPointPath(profile);
std::vector<std::pair<base::FilePath, base::FilePath> > bases;
bases.push_back(std::make_pair(base::FilePath(kOldDownloadsFolderPath),
downloads));
bases.push_back(std::make_pair(DownloadPrefs::GetDefaultDownloadDirectory(),
downloads));
bases.push_back(std::make_pair(base::FilePath(kOldDriveFolderPath), drive));
bases.push_back(std::make_pair(base::FilePath(kBuggyDriveFolderPath), drive));
// Trying migrating u-<hash>/Downloads to the current download path. This is
// no-op when multi-profile is enabled. This is necessary for (1) back
// migration when multi-profile flag is enabled and then disabled, or (2) in
// some edge cases (crbug.com/356322) that u-<hash> path is temporarily used.
if (chromeos::UserManager::IsInitialized()) {
const chromeos::User* const user =
chromeos::UserManager::Get()->GetUserByProfile(profile);
if (user) {
const base::FilePath hashed_downloads =
chromeos::ProfileHelper::GetProfilePathByUserIdHash(
user->username_hash()).AppendASCII(kDownloadsFolderName);
bases.push_back(std::make_pair(hashed_downloads, downloads));
}
}
for (size_t i = 0; i < bases.size(); ++i) {
const base::FilePath& old_base = bases[i].first;
const base::FilePath& new_base = bases[i].second;
base::FilePath relative;
if (old_path == old_base ||
old_base.AppendRelativePath(old_path, &relative)) {
*new_path = new_base.Append(relative);
return old_path != *new_path;
}
}
return false;
}
std::string GetDownloadsMountPointName(Profile* profile) {
// To distinguish profiles in multi-profile session, we append user name hash
// to "Downloads". Note that some profiles (like login or test profiles)
// are not associated with an user account. In that case, no suffix is added
// because such a profile never belongs to a multi-profile session.
chromeos::User* const user =
chromeos::UserManager::IsInitialized() ?
chromeos::UserManager::Get()->GetUserByProfile(
profile->GetOriginalProfile()) : NULL;
const std::string id = user ? "-" + user->username_hash() : "";
return net::EscapePath(kDownloadsFolderName + id);
}
} // namespace util
} // namespace file_manager
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