| // Copyright 2016 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/os_crypt/key_storage_util_linux.h" |
| |
| #include "base/files/file_path.h" |
| #include "base/files/file_util.h" |
| #include "base/logging.h" |
| |
| namespace { |
| |
| // OSCrypt has a setting that determines whether a backend will be used. |
| // The presense of this file in the file system means that the backend |
| // should be ignored. It's absence means we should use the backend. |
| constexpr const char kPreferenceFileName[] = "Disable Local Encryption"; |
| |
| bool ReadBackendUse(const base::FilePath& user_data_dir, bool* use) { |
| if (user_data_dir.empty()) |
| return false; |
| base::FilePath pref_path = user_data_dir.Append(kPreferenceFileName); |
| *use = !base::PathExists(pref_path); |
| return true; |
| } |
| |
| } // namespace |
| |
| namespace os_crypt { |
| |
| SelectedLinuxBackend SelectBackend(const std::string& type, |
| bool use_backend, |
| base::nix::DesktopEnvironment desktop_env) { |
| // Explicitly requesting a store overrides other production logic. |
| if (type == "kwallet") |
| return SelectedLinuxBackend::KWALLET; |
| if (type == "kwallet5") |
| return SelectedLinuxBackend::KWALLET5; |
| if (type == "gnome") |
| return SelectedLinuxBackend::GNOME_ANY; |
| if (type == "gnome-keyring") |
| return SelectedLinuxBackend::GNOME_KEYRING; |
| if (type == "gnome-libsecret") |
| return SelectedLinuxBackend::GNOME_LIBSECRET; |
| if (type == "basic") |
| return SelectedLinuxBackend::BASIC_TEXT; |
| |
| // Ignore the backends if requested to. |
| if (!use_backend) |
| return SelectedLinuxBackend::BASIC_TEXT; |
| |
| // Detect the store to use automatically. |
| const char* name = base::nix::GetDesktopEnvironmentName(desktop_env); |
| VLOG(1) << "Password storage detected desktop environment: " |
| << (name ? name : "(unknown)"); |
| switch (desktop_env) { |
| case base::nix::DESKTOP_ENVIRONMENT_KDE4: |
| return SelectedLinuxBackend::KWALLET; |
| case base::nix::DESKTOP_ENVIRONMENT_KDE5: |
| return SelectedLinuxBackend::KWALLET5; |
| case base::nix::DESKTOP_ENVIRONMENT_CINNAMON: |
| case base::nix::DESKTOP_ENVIRONMENT_GNOME: |
| case base::nix::DESKTOP_ENVIRONMENT_PANTHEON: |
| case base::nix::DESKTOP_ENVIRONMENT_UNITY: |
| case base::nix::DESKTOP_ENVIRONMENT_XFCE: |
| return SelectedLinuxBackend::GNOME_ANY; |
| // KDE3 didn't use DBus, which our KWallet store uses. |
| case base::nix::DESKTOP_ENVIRONMENT_KDE3: |
| case base::nix::DESKTOP_ENVIRONMENT_OTHER: |
| return SelectedLinuxBackend::BASIC_TEXT; |
| } |
| |
| NOTREACHED(); |
| return SelectedLinuxBackend::BASIC_TEXT; |
| } |
| |
| bool WriteBackendUse(const base::FilePath& user_data_dir, bool use) { |
| if (user_data_dir.empty()) |
| return false; |
| base::FilePath pref_path = user_data_dir.Append(kPreferenceFileName); |
| if (use) |
| return base::DeleteFile(pref_path, false); |
| FILE* f = base::OpenFile(pref_path, "w"); |
| return f != nullptr && base::CloseFile(f); |
| } |
| |
| bool GetBackendUse(const base::FilePath& user_data_dir) { |
| bool setting; |
| if (ReadBackendUse(user_data_dir, &setting)) |
| return setting; |
| return true; |
| } |
| |
| } // namespace os_crypt |