| // Copyright 2014 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 "components/component_updater/component_updater_paths.h" |
| |
| #include "base/lazy_instance.h" |
| #include "base/path_service.h" |
| |
| namespace component_updater { |
| |
| namespace { |
| |
| // This key gives the root directory of all the component installations. |
| static int g_components_preinstalled_root_key = -1; |
| static int g_components_preinstalled_root_key_alt = -1; |
| static int g_components_user_root_key = -1; |
| |
| } // namespace |
| |
| const base::FilePath::CharType kSupervisedUserWhitelistDirName[] = |
| FILE_PATH_LITERAL("SupervisedUserWhitelists"); |
| |
| bool PathProvider(int key, base::FilePath* result) { |
| DCHECK_GT(g_components_user_root_key, 0); |
| DCHECK_GT(g_components_preinstalled_root_key, 0); |
| |
| // Early exit here to prevent a potential infinite loop when we retrieve |
| // the path for g_components_*_root_key. |
| if (key < PATH_START || key > PATH_END) |
| return false; |
| |
| switch (key) { |
| case DIR_COMPONENT_PREINSTALLED: |
| return base::PathService::Get(g_components_preinstalled_root_key, result); |
| case DIR_COMPONENT_PREINSTALLED_ALT: |
| return base::PathService::Get(g_components_preinstalled_root_key_alt, |
| result); |
| case DIR_COMPONENT_USER: |
| return base::PathService::Get(g_components_user_root_key, result); |
| } |
| |
| base::FilePath cur; |
| if (!base::PathService::Get(g_components_user_root_key, &cur)) |
| return false; |
| |
| switch (key) { |
| case DIR_COMPONENT_CLD2: |
| cur = cur.Append(FILE_PATH_LITERAL("CLD")); |
| break; |
| case DIR_RECOVERY_BASE: |
| cur = cur.Append(FILE_PATH_LITERAL("recovery")); |
| break; |
| case DIR_SWIFT_SHADER: |
| cur = cur.Append(FILE_PATH_LITERAL("SwiftShader")); |
| break; |
| case DIR_SUPERVISED_USER_WHITELISTS: |
| cur = cur.Append(kSupervisedUserWhitelistDirName); |
| break; |
| default: |
| return false; |
| } |
| |
| *result = cur; |
| return true; |
| } |
| |
| // This cannot be done as a static initializer sadly since Visual Studio will |
| // eliminate this object file if there is no direct entry point into it. |
| void RegisterPathProvider(int components_preinstalled_root_key, |
| int components_preinstalled_root_key_alt, |
| int components_user_root_key) { |
| DCHECK_EQ(g_components_preinstalled_root_key, -1); |
| DCHECK_EQ(g_components_preinstalled_root_key_alt, -1); |
| DCHECK_EQ(g_components_user_root_key, -1); |
| DCHECK_GT(components_preinstalled_root_key, 0); |
| DCHECK_GT(components_preinstalled_root_key_alt, 0); |
| DCHECK_GT(components_user_root_key, 0); |
| DCHECK(components_preinstalled_root_key < PATH_START || |
| components_preinstalled_root_key > PATH_END); |
| DCHECK(components_preinstalled_root_key_alt < PATH_START || |
| components_preinstalled_root_key_alt > PATH_END); |
| DCHECK(components_user_root_key < PATH_START || |
| components_user_root_key > PATH_END); |
| |
| g_components_preinstalled_root_key = components_preinstalled_root_key; |
| g_components_preinstalled_root_key_alt = components_preinstalled_root_key_alt; |
| g_components_user_root_key = components_user_root_key; |
| base::PathService::RegisterProvider(PathProvider, PATH_START, PATH_END); |
| } |
| |
| } // namespace component_updater |