1 // Copyright 2013 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 #include "chrome/browser/chromeos/file_manager/path_util.h"
6
7 #include "base/files/file_path.h"
8 #include "base/logging.h"
9 #include "base/sys_info.h"
10 #include "chrome/browser/chromeos/drive/file_system_util.h"
11 #include "chrome/browser/chromeos/profiles/profile_helper.h"
12 #include "chrome/browser/download/download_prefs.h"
13 #include "chrome/browser/profiles/profile.h"
14 #include "components/user_manager/user.h"
15 #include "components/user_manager/user_manager.h"
16 #include "net/base/escape.h"
17
18 namespace file_manager {
19 namespace util {
20
21 namespace {
22
23 const char kDownloadsFolderName[] = "Downloads";
24 const base::FilePath::CharType kOldDownloadsFolderPath[] =
25 FILE_PATH_LITERAL("/home/chronos/user/Downloads");
26 const base::FilePath::CharType kOldDriveFolderPath[] =
27 FILE_PATH_LITERAL("/special/drive");
28 // Unintended path introduced in crbug.com/363026.
29 const base::FilePath::CharType kBuggyDriveFolderPath[] =
30 FILE_PATH_LITERAL("/special/drive-user");
31
32 } // namespace
33
GetDownloadsFolderForProfile(Profile * profile)34 base::FilePath GetDownloadsFolderForProfile(Profile* profile) {
35 // On non-ChromeOS system (test+development), the primary profile uses
36 // $HOME/Downloads for ease for accessing local files for debugging.
37 if (!base::SysInfo::IsRunningOnChromeOS() &&
38 user_manager::UserManager::IsInitialized()) {
39 const user_manager::User* const user =
40 chromeos::ProfileHelper::Get()->GetUserByProfile(
41 profile->GetOriginalProfile());
42 const user_manager::User* const primary_user =
43 user_manager::UserManager::Get()->GetPrimaryUser();
44 if (user == primary_user)
45 return DownloadPrefs::GetDefaultDownloadDirectory();
46 }
47 return profile->GetPath().AppendASCII(kDownloadsFolderName);
48 }
49
MigratePathFromOldFormat(Profile * profile,const base::FilePath & old_path,base::FilePath * new_path)50 bool MigratePathFromOldFormat(Profile* profile,
51 const base::FilePath& old_path,
52 base::FilePath* new_path) {
53 // M34:
54 // /home/chronos/user/Downloads/xxx => /home/chronos/u-hash/Downloads/xxx
55 // /special/drive => /special/drive-xxx
56 //
57 // Old path format comes either from stored old settings or from the initial
58 // default value set in DownloadPrefs::RegisterProfilePrefs in profile-unaware
59 // code location. In the former case it is "/home/chronos/user/Downloads",
60 // and in the latter case it is DownloadPrefs::GetDefaultDownloadDirectory().
61 // Those two paths coincides as long as $HOME=/home/chronos/user, but the
62 // environment variable is phasing out (crbug.com/333031) so we care both.
63
64 const base::FilePath downloads = GetDownloadsFolderForProfile(profile);
65 const base::FilePath drive = drive::util::GetDriveMountPointPath(profile);
66
67 std::vector<std::pair<base::FilePath, base::FilePath> > bases;
68 bases.push_back(std::make_pair(base::FilePath(kOldDownloadsFolderPath),
69 downloads));
70 bases.push_back(std::make_pair(DownloadPrefs::GetDefaultDownloadDirectory(),
71 downloads));
72 bases.push_back(std::make_pair(base::FilePath(kOldDriveFolderPath), drive));
73 bases.push_back(std::make_pair(base::FilePath(kBuggyDriveFolderPath), drive));
74
75 // Trying migrating u-<hash>/Downloads to the current download path. This is
76 // no-op when multi-profile is enabled. This is necessary for (1) back
77 // migration when multi-profile flag is enabled and then disabled, or (2) in
78 // some edge cases (crbug.com/356322) that u-<hash> path is temporarily used.
79 if (user_manager::UserManager::IsInitialized()) {
80 const user_manager::User* const user =
81 chromeos::ProfileHelper::Get()->GetUserByProfile(profile);
82 if (user) {
83 const base::FilePath hashed_downloads =
84 chromeos::ProfileHelper::GetProfilePathByUserIdHash(
85 user->username_hash()).AppendASCII(kDownloadsFolderName);
86 bases.push_back(std::make_pair(hashed_downloads, downloads));
87 }
88 }
89
90 for (size_t i = 0; i < bases.size(); ++i) {
91 const base::FilePath& old_base = bases[i].first;
92 const base::FilePath& new_base = bases[i].second;
93 base::FilePath relative;
94 if (old_path == old_base ||
95 old_base.AppendRelativePath(old_path, &relative)) {
96 *new_path = new_base.Append(relative);
97 return old_path != *new_path;
98 }
99 }
100
101 return false;
102 }
103
GetDownloadsMountPointName(Profile * profile)104 std::string GetDownloadsMountPointName(Profile* profile) {
105 // To distinguish profiles in multi-profile session, we append user name hash
106 // to "Downloads". Note that some profiles (like login or test profiles)
107 // are not associated with an user account. In that case, no suffix is added
108 // because such a profile never belongs to a multi-profile session.
109 user_manager::User* const user =
110 user_manager::UserManager::IsInitialized()
111 ? chromeos::ProfileHelper::Get()->GetUserByProfile(
112 profile->GetOriginalProfile())
113 : NULL;
114 const std::string id = user ? "-" + user->username_hash() : "";
115 return net::EscapeQueryParamValue(kDownloadsFolderName + id, false);
116 }
117
118 } // namespace util
119 } // namespace file_manager
120