| // 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. |
| // |
| // This file declares utility functions for the installer. The original reason |
| // for putting these functions in installer\util library is so that we can |
| // separate out the critical logic and write unit tests for it. |
| |
| #ifndef CHROME_INSTALLER_UTIL_INSTALL_UTIL_H_ |
| #define CHROME_INSTALLER_UTIL_INSTALL_UTIL_H_ |
| |
| #include <windows.h> |
| #include <tchar.h> |
| |
| #include "base/command_line.h" |
| #include "base/files/file.h" |
| #include "base/files/file_path.h" |
| #include "base/macros.h" |
| #include "base/strings/string16.h" |
| #include "base/strings/string_piece.h" |
| #include "base/version.h" |
| #include "base/win/scoped_handle.h" |
| #include "chrome/installer/util/util_constants.h" |
| |
| class WorkItemList; |
| |
| // This is a utility class that provides common installation related |
| // utility methods that can be used by installer and also unit tested |
| // independently. |
| class InstallUtil { |
| public: |
| // Attempts to trigger the command that would be run by Active Setup for a |
| // system-level Chrome. For use only when system-level Chrome is installed. |
| static void TriggerActiveSetupCommand(); |
| |
| // Launches given exe as admin on Vista. |
| static bool ExecuteExeAsAdmin(const base::CommandLine& cmd, DWORD* exit_code); |
| |
| // Reads the uninstall command for Chromium from the Windows registry and |
| // returns it. If |system_install| is true the command is read from HKLM, |
| // otherwise from HKCU. Returns an empty CommandLine if Chrome is not |
| // installed. |
| static base::CommandLine GetChromeUninstallCmd(bool system_install); |
| |
| // Returns the version of Chrome registered with Google Update, or an invalid |
| // Version in case no such value could be found. |system_install| indicates |
| // whether HKLM (true) or HKCU (false) should be checked. |
| static base::Version GetChromeVersion(bool system_install); |
| |
| // Returns the last critical update (version) of Chrome, or an invalid Version |
| // in case no such value is found. A critical update is a specially flagged |
| // version (by Google Update) that contains an important security fix. |
| static base::Version GetCriticalUpdateVersion(); |
| |
| // This function checks if the current OS is supported for Chromium. |
| static bool IsOSSupported(); |
| |
| // Adds work items to |install_list| to set installer error information in the |
| // registry for consumption by Google Update. |install_list| must be best- |
| // effort with rollback disabled. |state_key| must be the full path to an |
| // app's ClientState key. See InstallerState::WriteInstallerResult for more |
| // details. |
| static void AddInstallerResultItems(bool system_install, |
| const base::string16& state_key, |
| installer::InstallStatus status, |
| int string_resource_id, |
| const base::string16* const launch_cmd, |
| WorkItemList* install_list); |
| |
| // Returns true if this installation path is per user, otherwise returns false |
| // (per machine install, meaning: the exe_path contains the path to Program |
| // Files). |
| // TODO(grt): consider replacing all callers with direct use of |
| // InstallDetails. |
| static bool IsPerUserInstall(); |
| |
| // Returns true if the sentinel file exists (or the path cannot be obtained). |
| static bool IsFirstRunSentinelPresent(); |
| |
| // Test to see if a Start menu shortcut exists with the right toast activator |
| // CLSID registered. |
| static bool IsStartMenuShortcutWithActivatorGuidInstalled(); |
| |
| // Returns a string representation of |guid|. |
| static base::string16 String16FromGUID(const GUID& guid); |
| |
| // Returns the toast activator registry path. |
| static base::string16 GetToastActivatorRegistryPath(); |
| |
| // Populates |path| with EULA sentinel file path. Returns false on error. |
| static bool GetEulaSentinelFilePath(base::FilePath* path); |
| |
| // Deletes the registry key at path key_path under the key given by root_key. |
| static bool DeleteRegistryKey(HKEY root_key, |
| const base::string16& key_path, |
| REGSAM wow64_access); |
| |
| // Deletes the registry value named value_name at path key_path under the key |
| // given by reg_root. |
| static bool DeleteRegistryValue(HKEY reg_root, const base::string16& key_path, |
| REGSAM wow64_access, |
| const base::string16& value_name); |
| |
| // An interface to a predicate function for use by DeleteRegistryKeyIf and |
| // DeleteRegistryValueIf. |
| class RegistryValuePredicate { |
| public: |
| virtual ~RegistryValuePredicate() { } |
| virtual bool Evaluate(const base::string16& value) const = 0; |
| }; |
| |
| // The result of a conditional delete operation (i.e., DeleteFOOIf). |
| enum ConditionalDeleteResult { |
| NOT_FOUND, // The condition was not satisfied. |
| DELETED, // The condition was satisfied and the delete succeeded. |
| DELETE_FAILED // The condition was satisfied but the delete failed. |
| }; |
| |
| // Deletes the key |key_to_delete_path| under |root_key| iff the value |
| // |value_name| in the key |key_to_test_path| under |root_key| satisfies |
| // |predicate|. |value_name| may be either NULL or an empty string to test |
| // the key's default value. |
| static ConditionalDeleteResult DeleteRegistryKeyIf( |
| HKEY root_key, |
| const base::string16& key_to_delete_path, |
| const base::string16& key_to_test_path, |
| REGSAM wow64_access, |
| const wchar_t* value_name, |
| const RegistryValuePredicate& predicate); |
| |
| // Deletes the value |value_name| in the key |key_path| under |root_key| iff |
| // its current value satisfies |predicate|. |value_name| may be either NULL |
| // or an empty string to test/delete the key's default value. |
| static ConditionalDeleteResult DeleteRegistryValueIf( |
| HKEY root_key, |
| const wchar_t* key_path, |
| REGSAM wow64_access, |
| const wchar_t* value_name, |
| const RegistryValuePredicate& predicate); |
| |
| // A predicate that performs a case-sensitive string comparison. |
| class ValueEquals : public RegistryValuePredicate { |
| public: |
| explicit ValueEquals(const base::string16& value_to_match) |
| : value_to_match_(value_to_match) { } |
| bool Evaluate(const base::string16& value) const override; |
| protected: |
| base::string16 value_to_match_; |
| private: |
| DISALLOW_COPY_AND_ASSIGN(ValueEquals); |
| }; |
| |
| // Returns zero on install success, or an InstallStatus value otherwise. |
| static int GetInstallReturnCode(installer::InstallStatus install_status); |
| |
| // Composes |program| and |arguments| into |command_line|. |
| static void ComposeCommandLine(const base::string16& program, |
| const base::string16& arguments, |
| base::CommandLine* command_line); |
| |
| // Appends the installer switch that selects the current install mode (see |
| // install_static::InstallDetails). |
| static void AppendModeSwitch(base::CommandLine* command_line); |
| |
| // Returns a string in the form YYYYMMDD of the current date. |
| static base::string16 GetCurrentDate(); |
| |
| // Returns the highest Chrome version that was installed prior to a downgrade, |
| // or an invalid Version if Chrome was not previously downgraded from a newer |
| // version. |
| static base::Version GetDowngradeVersion(); |
| |
| // Adds or removes downgrade version registry value. This function should only |
| // be used for Chrome install. |
| static void AddUpdateDowngradeVersionItem( |
| HKEY root, |
| const base::Version* current_version, |
| const base::Version& new_version, |
| WorkItemList* list); |
| |
| // Returns the registry key path and value name where the enrollment token is |
| // stored for machine level user cloud policies. |
| // Note that the value name was recently changed, we still need to return the |
| // old for some time until it's no longer in use. |
| // TODO(crbug.com/907589) : Remove |old_value_name| once no longer in use. |
| static void GetMachineLevelUserCloudPolicyEnrollmentTokenRegistryPath( |
| base::string16* key_path, |
| base::string16* value_name, |
| base::string16* old_value_name); |
| |
| // Returns the registry key path and value name where the DM token is stored |
| // for machine level user cloud policies. |
| static void GetMachineLevelUserCloudPolicyDMTokenRegistryPath( |
| base::string16* key_path, |
| base::string16* value_name); |
| |
| // Returns the token used to enroll this chrome instance for machine level |
| // user cloud policies. Returns an empty string if this machine should not |
| // be enrolled. |
| static base::string16 GetMachineLevelUserCloudPolicyEnrollmentToken(); |
| |
| // Returns true if cloud management enrollment is mandatory. |
| static bool ShouldCloudManagementBlockOnFailure(); |
| |
| // Returns the localized name of the browser. |
| static base::string16 GetDisplayName(); |
| |
| // Returns the app description for shortcuts. |
| static base::string16 GetAppDescription(); |
| |
| // Returns the name of the browser's publisher. |
| static base::string16 GetPublisherName(); |
| |
| // Returns the name of Chrome's shortcut in the Start Menu (among other |
| // places). |
| static base::string16 GetShortcutName(); |
| |
| // Returns the name of the subdirectory in which Chrome's Start Menu shortcut |
| // was once placed. This remains purely to migrate old installs to the new |
| // style. |
| static base::string16 GetChromeShortcutDirNameDeprecated(); |
| |
| // Returns the name of the subdirectory in the Start Menu in which Chrome |
| // apps' shortcuts are placed. |
| static base::string16 GetChromeAppsShortcutDirName(); |
| |
| // Returns the long description of Chrome used when registering as a browser |
| // with Windows. |
| static base::string16 GetLongAppDescription(); |
| |
| // A predicate that compares the program portion of a command line with a |
| // given file path. First, the file paths are compared directly. If they do |
| // not match, the filesystem is consulted to determine if the paths reference |
| // the same file. |
| class ProgramCompare : public RegistryValuePredicate { |
| public: |
| explicit ProgramCompare(const base::FilePath& path_to_match); |
| ~ProgramCompare() override; |
| bool Evaluate(const base::string16& value) const override; |
| bool EvaluatePath(const base::FilePath& path) const; |
| |
| protected: |
| static bool OpenForInfo(const base::FilePath& path, base::File* file); |
| static bool GetInfo(const base::File& file, |
| BY_HANDLE_FILE_INFORMATION* info); |
| |
| base::FilePath path_to_match_; |
| base::File file_; |
| BY_HANDLE_FILE_INFORMATION file_info_; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(ProgramCompare); |
| }; // class ProgramCompare |
| |
| // Converts a product GUID into a SQuished gUID that is used for MSI installer |
| // registry entries. |
| static base::string16 GuidToSquid(base::StringPiece16 guid); |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(InstallUtil); |
| }; |
| |
| |
| #endif // CHROME_INSTALLER_UTIL_INSTALL_UTIL_H_ |