| // Copyright 2019 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/updater/win/task_scheduler.h" |
| |
| #include <mstask.h> |
| #include <oleauto.h> |
| #include <security.h> |
| #include <taskschd.h> |
| #include <wrl/client.h> |
| |
| #include <utility> |
| |
| #include "base/command_line.h" |
| #include "base/files/file_path.h" |
| #include "base/logging.h" |
| #include "base/native_library.h" |
| #include "base/path_service.h" |
| #include "base/strings/strcat.h" |
| #include "base/strings/string16.h" |
| #include "base/strings/stringprintf.h" |
| #include "base/time/time.h" |
| #include "base/win/scoped_bstr.h" |
| #include "base/win/scoped_co_mem.h" |
| #include "base/win/scoped_handle.h" |
| #include "base/win/scoped_variant.h" |
| #include "base/win/windows_version.h" |
| #include "chrome/updater/win/util.h" |
| |
| namespace updater { |
| |
| namespace { |
| |
| // Names of the TaskSchedulerV2 libraries so we can pin them below. |
| const wchar_t kV2Library[] = L"taskschd.dll"; |
| |
| // Text for times used in the V2 API of the Task Scheduler. |
| const wchar_t kOneHourText[] = L"PT1H"; |
| const wchar_t kFiveHoursText[] = L"PT5H"; |
| const wchar_t kZeroMinuteText[] = L"PT0M"; |
| const wchar_t kFifteenMinutesText[] = L"PT15M"; |
| const wchar_t kTwentyFourHoursText[] = L"PT24H"; |
| |
| // Most of the users with pending logs succeeds within 7 days, so no need to |
| // try for longer than that, especially for those who keep crashing. |
| const int kNumDaysBeforeExpiry = 7; |
| const size_t kNumDeleteTaskRetry = 3; |
| const size_t kDeleteRetryDelayInMs = 100; |
| |
| // Return |timestamp| in the following string format YYYY-MM-DDTHH:MM:SS. |
| base::string16 GetTimestampString(const base::Time& timestamp) { |
| base::Time::Exploded exploded_time; |
| // The Z timezone info at the end of the string means UTC. |
| timestamp.UTCExplode(&exploded_time); |
| return base::StringPrintf(L"%04d-%02d-%02dT%02d:%02d:%02dZ", |
| exploded_time.year, exploded_time.month, |
| exploded_time.day_of_month, exploded_time.hour, |
| exploded_time.minute, exploded_time.second); |
| } |
| |
| bool LocalSystemTimeToUTCFileTime(const SYSTEMTIME& system_time_local, |
| FILETIME* file_time_utc) { |
| DCHECK(file_time_utc); |
| SYSTEMTIME system_time_utc = {}; |
| if (!::TzSpecificLocalTimeToSystemTime(nullptr, &system_time_local, |
| &system_time_utc) || |
| !::SystemTimeToFileTime(&system_time_utc, file_time_utc)) { |
| PLOG(ERROR) << "Failed to convert local system time to UTC file time."; |
| return false; |
| } |
| return true; |
| } |
| |
| bool UTCFileTimeToLocalSystemTime(const FILETIME& file_time_utc, |
| SYSTEMTIME* system_time_local) { |
| DCHECK(system_time_local); |
| SYSTEMTIME system_time_utc = {}; |
| if (!::FileTimeToSystemTime(&file_time_utc, &system_time_utc) || |
| !::SystemTimeToTzSpecificLocalTime(nullptr, &system_time_utc, |
| system_time_local)) { |
| PLOG(ERROR) << "Failed to convert file time to UTC local system."; |
| return false; |
| } |
| return true; |
| } |
| |
| bool GetCurrentUser(base::win::ScopedBstr* user_name) { |
| DCHECK(user_name); |
| ULONG user_name_size = 256; |
| // Paranoia... ;-) |
| DCHECK_EQ(sizeof(OLECHAR), sizeof(WCHAR)); |
| if (!::GetUserNameExW( |
| NameSamCompatible, |
| user_name->AllocateBytes(user_name_size * sizeof(OLECHAR)), |
| &user_name_size)) { |
| if (::GetLastError() != ERROR_MORE_DATA) { |
| PLOG(ERROR) << "GetUserNameEx failed."; |
| return false; |
| } |
| if (!::GetUserNameExW( |
| NameSamCompatible, |
| user_name->AllocateBytes(user_name_size * sizeof(OLECHAR)), |
| &user_name_size)) { |
| DCHECK_NE(static_cast<DWORD>(ERROR_MORE_DATA), ::GetLastError()); |
| PLOG(ERROR) << "GetUserNameEx failed."; |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| void PinModule(const wchar_t* module_name) { |
| // Force the DLL to stay loaded until program termination. We have seen |
| // cases where it gets unloaded even though we still have references to |
| // the objects we just CoCreated. |
| base::NativeLibrary module_handle = nullptr; |
| if (!::GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_PIN, module_name, |
| &module_handle)) { |
| PLOG(ERROR) << "Failed to pin '" << module_name << "'."; |
| } |
| } |
| |
| // A task scheduler class uses the V2 API of the task scheduler. |
| class TaskSchedulerV2 final : public TaskScheduler { |
| public: |
| static bool Initialize() { |
| DCHECK(!task_service_); |
| DCHECK(!root_task_folder_); |
| |
| HRESULT hr = |
| ::CoCreateInstance(CLSID_TaskScheduler, nullptr, CLSCTX_INPROC_SERVER, |
| IID_PPV_ARGS(&task_service_)); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "CreateInstance failed for CLSID_TaskScheduler. " |
| << std::hex << hr; |
| return false; |
| } |
| hr = task_service_->Connect(base::win::ScopedVariant::kEmptyVariant, |
| base::win::ScopedVariant::kEmptyVariant, |
| base::win::ScopedVariant::kEmptyVariant, |
| base::win::ScopedVariant::kEmptyVariant); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to connect to task service. " << std::hex << hr; |
| return false; |
| } |
| hr = task_service_->GetFolder(base::win::ScopedBstr(L"\\"), |
| &root_task_folder_); |
| if (FAILED(hr)) { |
| LOG(ERROR) << "Can't get task service folder. " << std::hex << hr; |
| return false; |
| } |
| PinModule(kV2Library); |
| return true; |
| } |
| |
| static void Terminate() { |
| root_task_folder_.Reset(); |
| task_service_.Reset(); |
| } |
| |
| TaskSchedulerV2() { |
| DCHECK(task_service_); |
| DCHECK(root_task_folder_); |
| } |
| |
| // TaskScheduler overrides. |
| bool IsTaskRegistered(const wchar_t* task_name) override { |
| DCHECK(task_name); |
| if (!root_task_folder_) |
| return false; |
| |
| return GetTask(task_name, nullptr); |
| } |
| |
| bool GetNextTaskRunTime(const wchar_t* task_name, |
| base::Time* next_run_time) override { |
| DCHECK(task_name); |
| DCHECK(next_run_time); |
| if (!root_task_folder_) |
| return false; |
| |
| Microsoft::WRL::ComPtr<IRegisteredTask> registered_task; |
| if (!GetTask(task_name, ®istered_task)) |
| return false; |
| |
| // We unfortunately can't use get_NextRunTime because of a known bug which |
| // requires hotfix: http://support.microsoft.com/kb/2495489/en-us. So fetch |
| // one of the run times in the next day. |
| // Also, although it's not obvious from MSDN, IRegisteredTask::GetRunTimes |
| // expects local time. |
| SYSTEMTIME start_system_time = {}; |
| GetLocalTime(&start_system_time); |
| |
| base::Time tomorrow(base::Time::NowFromSystemTime() + |
| base::TimeDelta::FromDays(1)); |
| SYSTEMTIME end_system_time = {}; |
| if (!UTCFileTimeToLocalSystemTime(tomorrow.ToFileTime(), &end_system_time)) |
| return false; |
| |
| DWORD num_run_times = 1; |
| SYSTEMTIME* raw_run_times = nullptr; |
| HRESULT hr = registered_task->GetRunTimes( |
| &start_system_time, &end_system_time, &num_run_times, &raw_run_times); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to GetRunTimes, " << std::hex << hr; |
| return false; |
| } |
| |
| if (num_run_times == 0) |
| return false; |
| |
| base::win::ScopedCoMem<SYSTEMTIME> run_times; |
| run_times.Reset(raw_run_times); |
| // Again, although unclear from MSDN, IRegisteredTask::GetRunTimes returns |
| // local times. |
| FILETIME file_time = {}; |
| if (!LocalSystemTimeToUTCFileTime(run_times[0], &file_time)) |
| return false; |
| *next_run_time = base::Time::FromFileTime(file_time); |
| return true; |
| } |
| |
| bool SetTaskEnabled(const wchar_t* task_name, bool enabled) override { |
| DCHECK(task_name); |
| if (!root_task_folder_) |
| return false; |
| |
| Microsoft::WRL::ComPtr<IRegisteredTask> registered_task; |
| if (!GetTask(task_name, ®istered_task)) { |
| LOG(ERROR) << "Failed to find the task " << task_name |
| << " to enable/disable"; |
| return false; |
| } |
| |
| HRESULT hr; |
| hr = registered_task->put_Enabled(enabled ? VARIANT_TRUE : VARIANT_FALSE); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to set enabled status of task named " << task_name |
| << ". " << std::hex << hr; |
| return false; |
| } |
| return true; |
| } |
| |
| bool IsTaskEnabled(const wchar_t* task_name) override { |
| DCHECK(task_name); |
| if (!root_task_folder_) |
| return false; |
| |
| Microsoft::WRL::ComPtr<IRegisteredTask> registered_task; |
| if (!GetTask(task_name, ®istered_task)) |
| return false; |
| |
| HRESULT hr; |
| VARIANT_BOOL is_enabled; |
| hr = registered_task->get_Enabled(&is_enabled); |
| if (FAILED(hr)) { |
| LOG(ERROR) << "Failed to get enabled status for task named " << task_name |
| << ". " << std::hex << hr << ": " |
| << logging::SystemErrorCodeToString(hr); |
| return false; |
| } |
| |
| return is_enabled == VARIANT_TRUE; |
| } |
| |
| bool GetTaskNameList(std::vector<base::string16>* task_names) override { |
| DCHECK(task_names); |
| if (!root_task_folder_) |
| return false; |
| |
| for (TaskIterator it(root_task_folder_.Get()); !it.done(); it.Next()) |
| task_names->push_back(it.name()); |
| return true; |
| } |
| |
| bool GetTaskInfo(const wchar_t* task_name, TaskInfo* info) override { |
| DCHECK(task_name); |
| DCHECK(info); |
| if (!root_task_folder_) |
| return false; |
| |
| Microsoft::WRL::ComPtr<IRegisteredTask> registered_task; |
| if (!GetTask(task_name, ®istered_task)) |
| return false; |
| |
| // Collect information into internal storage to ensure that we start with |
| // a clean slate and don't return partial results on error. |
| TaskInfo info_storage; |
| HRESULT hr = |
| GetTaskDescription(registered_task.Get(), &info_storage.description); |
| if (FAILED(hr)) { |
| LOG(ERROR) << "Failed to get description for task '" << task_name << "'. " |
| << std::hex << hr << ": " |
| << logging::SystemErrorCodeToString(hr); |
| return false; |
| } |
| |
| if (!GetTaskExecActions(registered_task.Get(), |
| &info_storage.exec_actions)) { |
| LOG(ERROR) << "Failed to get actions for task '" << task_name << "'"; |
| return false; |
| } |
| |
| hr = GetTaskLogonType(registered_task.Get(), &info_storage.logon_type); |
| if (FAILED(hr)) { |
| LOG(ERROR) << "Failed to get logon type for task '" << task_name << "'. " |
| << std::hex << hr << ": " |
| << logging::SystemErrorCodeToString(hr); |
| return false; |
| } |
| info_storage.name = task_name; |
| std::swap(*info, info_storage); |
| return true; |
| } |
| |
| bool DeleteTask(const wchar_t* task_name) override { |
| DCHECK(task_name); |
| if (!root_task_folder_) |
| return false; |
| |
| VLOG(1) << "Delete Task '" << task_name << "'."; |
| |
| HRESULT hr = |
| root_task_folder_->DeleteTask(base::win::ScopedBstr(task_name), 0); |
| // This can happen, e.g., while running tests, when the file system stresses |
| // quite a lot. Give it a few more chances to succeed. |
| size_t num_retries_left = kNumDeleteTaskRetry; |
| |
| if (FAILED(hr)) { |
| while ((hr == HRESULT_FROM_WIN32(ERROR_TRANSACTION_NOT_ACTIVE) || |
| hr == HRESULT_FROM_WIN32(ERROR_TRANSACTION_ALREADY_ABORTED)) && |
| --num_retries_left && IsTaskRegistered(task_name)) { |
| LOG(WARNING) << "Retrying delete task because transaction not active, " |
| << std::hex << hr << "."; |
| hr = root_task_folder_->DeleteTask(base::win::ScopedBstr(task_name), 0); |
| ::Sleep(kDeleteRetryDelayInMs); |
| } |
| if (!IsTaskRegistered(task_name)) |
| hr = S_OK; |
| } |
| |
| if (FAILED(hr) && hr != HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND)) { |
| PLOG(ERROR) << "Can't delete task. " << std::hex << hr; |
| return false; |
| } |
| |
| DCHECK(!IsTaskRegistered(task_name)); |
| return true; |
| } |
| |
| bool RegisterTask(const wchar_t* task_name, |
| const wchar_t* task_description, |
| const base::CommandLine& run_command, |
| TriggerType trigger_type, |
| bool hidden) override { |
| DCHECK(task_name); |
| DCHECK(task_description); |
| if (!DeleteTask(task_name)) |
| return false; |
| |
| // Create the task definition object to create the task. |
| Microsoft::WRL::ComPtr<ITaskDefinition> task; |
| DCHECK(task_service_); |
| HRESULT hr = task_service_->NewTask(0, &task); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't create new task. " << std::hex << hr; |
| return false; |
| } |
| |
| base::win::ScopedBstr user_name; |
| if (!GetCurrentUser(&user_name)) |
| return false; |
| |
| if (trigger_type != TRIGGER_TYPE_NOW) { |
| // Allow the task to run elevated on startup. |
| Microsoft::WRL::ComPtr<IPrincipal> principal; |
| hr = task->get_Principal(&principal); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't get principal. " << std::hex << hr; |
| return false; |
| } |
| |
| hr = principal->put_UserId(user_name); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't put user id. " << std::hex << hr; |
| return false; |
| } |
| |
| hr = principal->put_LogonType(TASK_LOGON_INTERACTIVE_TOKEN); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't put logon type. " << std::hex << hr; |
| return false; |
| } |
| } |
| |
| Microsoft::WRL::ComPtr<IRegistrationInfo> registration_info; |
| hr = task->get_RegistrationInfo(®istration_info); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't get registration info. " << std::hex << hr; |
| return false; |
| } |
| |
| hr = registration_info->put_Author(user_name); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't set registration info author. " << std::hex << hr; |
| return false; |
| } |
| |
| base::win::ScopedBstr description(task_description); |
| hr = registration_info->put_Description(description); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't set description. " << std::hex << hr; |
| return false; |
| } |
| |
| Microsoft::WRL::ComPtr<ITaskSettings> task_settings; |
| hr = task->get_Settings(&task_settings); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't get task settings. " << std::hex << hr; |
| return false; |
| } |
| |
| hr = task_settings->put_StartWhenAvailable(VARIANT_TRUE); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't put 'StartWhenAvailable' to true. " << std::hex |
| << hr; |
| return false; |
| } |
| |
| // TODO(csharp): Find a way to only set this for log upload retry. |
| hr = task_settings->put_DeleteExpiredTaskAfter( |
| base::win::ScopedBstr(kZeroMinuteText)); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't put 'DeleteExpiredTaskAfter'. " << std::hex << hr; |
| return false; |
| } |
| |
| hr = task_settings->put_DisallowStartIfOnBatteries(VARIANT_FALSE); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't put 'DisallowStartIfOnBatteries' to false. " |
| << std::hex << hr; |
| return false; |
| } |
| |
| hr = task_settings->put_StopIfGoingOnBatteries(VARIANT_FALSE); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't put 'StopIfGoingOnBatteries' to false. " << std::hex |
| << hr; |
| return false; |
| } |
| |
| if (hidden) { |
| hr = task_settings->put_Hidden(VARIANT_TRUE); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't put 'Hidden' to true. " << std::hex << hr; |
| return false; |
| } |
| } |
| |
| Microsoft::WRL::ComPtr<ITriggerCollection> trigger_collection; |
| hr = task->get_Triggers(&trigger_collection); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't get trigger collection. " << std::hex << hr; |
| return false; |
| } |
| |
| TASK_TRIGGER_TYPE2 task_trigger_type = TASK_TRIGGER_EVENT; |
| base::win::ScopedBstr repetition_interval; |
| switch (trigger_type) { |
| case TRIGGER_TYPE_POST_REBOOT: |
| task_trigger_type = TASK_TRIGGER_LOGON; |
| break; |
| case TRIGGER_TYPE_NOW: |
| task_trigger_type = TASK_TRIGGER_REGISTRATION; |
| break; |
| case TRIGGER_TYPE_HOURLY: |
| case TRIGGER_TYPE_EVERY_FIVE_HOURS: |
| task_trigger_type = TASK_TRIGGER_DAILY; |
| if (trigger_type == TRIGGER_TYPE_EVERY_FIVE_HOURS) { |
| repetition_interval.Reset(::SysAllocString(kFiveHoursText)); |
| } else if (trigger_type == TRIGGER_TYPE_HOURLY) { |
| repetition_interval.Reset(::SysAllocString(kOneHourText)); |
| } else { |
| NOTREACHED() << "Unknown TriggerType?"; |
| } |
| break; |
| default: |
| NOTREACHED() << "Unknown TriggerType?"; |
| } |
| |
| Microsoft::WRL::ComPtr<ITrigger> trigger; |
| hr = trigger_collection->Create(task_trigger_type, &trigger); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't create trigger of type " << task_trigger_type |
| << ". " << std::hex << hr; |
| return false; |
| } |
| |
| if (trigger_type == TRIGGER_TYPE_HOURLY || |
| trigger_type == TRIGGER_TYPE_EVERY_FIVE_HOURS) { |
| Microsoft::WRL::ComPtr<IDailyTrigger> daily_trigger; |
| hr = trigger.As(&daily_trigger); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't Query for registration trigger. " << std::hex |
| << hr; |
| return false; |
| } |
| |
| hr = daily_trigger->put_DaysInterval(1); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't put 'DaysInterval' to 1, " << std::hex << hr; |
| return false; |
| } |
| |
| Microsoft::WRL::ComPtr<IRepetitionPattern> repetition_pattern; |
| hr = trigger->get_Repetition(&repetition_pattern); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't get 'Repetition'. " << std::hex << hr; |
| return false; |
| } |
| |
| // The duration is the time to keep repeating until the next daily |
| // trigger. |
| hr = repetition_pattern->put_Duration( |
| base::win::ScopedBstr(kTwentyFourHoursText)); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't put 'Duration' to " << kTwentyFourHoursText |
| << ". " << std::hex << hr; |
| return false; |
| } |
| |
| hr = repetition_pattern->put_Interval(repetition_interval); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't put 'Interval' to " << repetition_interval << ". " |
| << std::hex << hr; |
| return false; |
| } |
| |
| // Start now. |
| base::Time now(base::Time::NowFromSystemTime()); |
| base::win::ScopedBstr start_boundary(GetTimestampString(now)); |
| hr = trigger->put_StartBoundary(start_boundary); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't put 'StartBoundary' to " << start_boundary << ". " |
| << std::hex << hr; |
| return false; |
| } |
| } |
| |
| if (trigger_type == TRIGGER_TYPE_POST_REBOOT) { |
| Microsoft::WRL::ComPtr<ILogonTrigger> logon_trigger; |
| hr = trigger.As(&logon_trigger); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't query trigger for 'ILogonTrigger'. " << std::hex |
| << hr; |
| return false; |
| } |
| |
| hr = logon_trigger->put_Delay(base::win::ScopedBstr(kFifteenMinutesText)); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't put 'Delay'. " << std::hex << hr; |
| return false; |
| } |
| } |
| |
| // None of the triggers should go beyond kNumDaysBeforeExpiry. |
| base::Time expiry_date(base::Time::NowFromSystemTime() + |
| base::TimeDelta::FromDays(kNumDaysBeforeExpiry)); |
| base::win::ScopedBstr end_boundary(GetTimestampString(expiry_date)); |
| hr = trigger->put_EndBoundary(end_boundary); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't put 'EndBoundary' to " << end_boundary << ". " |
| << std::hex << hr; |
| return false; |
| } |
| |
| Microsoft::WRL::ComPtr<IActionCollection> actions; |
| hr = task->get_Actions(&actions); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't get actions collection. " << std::hex << hr; |
| return false; |
| } |
| |
| Microsoft::WRL::ComPtr<IAction> action; |
| hr = actions->Create(TASK_ACTION_EXEC, &action); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't create exec action. " << std::hex << hr; |
| return false; |
| } |
| |
| Microsoft::WRL::ComPtr<IExecAction> exec_action; |
| hr = action.As(&exec_action); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't query for exec action. " << std::hex << hr; |
| return false; |
| } |
| |
| base::win::ScopedBstr path(run_command.GetProgram().value()); |
| hr = exec_action->put_Path(path); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't set path of exec action. " << std::hex << hr; |
| return false; |
| } |
| |
| base::win::ScopedBstr args(run_command.GetArgumentsString()); |
| hr = exec_action->put_Arguments(args); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Can't set arguments of exec action. " << std::hex << hr; |
| return false; |
| } |
| |
| Microsoft::WRL::ComPtr<IRegisteredTask> registered_task; |
| base::win::ScopedVariant user(user_name); |
| |
| DCHECK(root_task_folder_); |
| hr = root_task_folder_->RegisterTaskDefinition( |
| base::win::ScopedBstr(task_name), task.Get(), TASK_CREATE, |
| *user.AsInput(), // Not really input, but API expect non-const. |
| base::win::ScopedVariant::kEmptyVariant, TASK_LOGON_NONE, |
| base::win::ScopedVariant::kEmptyVariant, ®istered_task); |
| if (FAILED(hr)) { |
| LOG(ERROR) << "RegisterTaskDefinition failed. " << std::hex << hr << ": " |
| << logging::SystemErrorCodeToString(hr); |
| return false; |
| } |
| |
| DCHECK(IsTaskRegistered(task_name)); |
| |
| VLOG(1) << "Successfully registered: " |
| << run_command.GetCommandLineString(); |
| return true; |
| } |
| |
| private: |
| // Helper class that lets us iterate over all registered tasks. |
| class TaskIterator { |
| public: |
| explicit TaskIterator(ITaskFolder* task_folder) { |
| DCHECK(task_folder); |
| HRESULT hr = task_folder->GetTasks(TASK_ENUM_HIDDEN, &tasks_); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to get registered tasks from folder. " |
| << std::hex << hr; |
| done_ = true; |
| return; |
| } |
| hr = tasks_->get_Count(&num_tasks_); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to get registered tasks count. " << std::hex |
| << hr; |
| done_ = true; |
| return; |
| } |
| Next(); |
| } |
| |
| // Increment to the next valid item in the task list. Skip entries for |
| // which we cannot retrieve a name. |
| void Next() { |
| DCHECK(!done_); |
| task_.Reset(); |
| name_.clear(); |
| if (++task_index_ >= num_tasks_) { |
| done_ = true; |
| return; |
| } |
| |
| // Note: get_Item uses 1 based indices. |
| HRESULT hr = |
| tasks_->get_Item(base::win::ScopedVariant(task_index_ + 1), &task_); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to get task at index: " << task_index_ << ". " |
| << std::hex << hr; |
| Next(); |
| return; |
| } |
| |
| base::win::ScopedBstr task_name_bstr; |
| hr = task_->get_Name(task_name_bstr.Receive()); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to get name at index: " << task_index_ << ". " |
| << std::hex << hr; |
| Next(); |
| return; |
| } |
| name_ = base::string16(task_name_bstr ? task_name_bstr : L""); |
| } |
| |
| // Detach the currently active task and pass ownership to the caller. |
| // After this method has been called, the -> operator must no longer be |
| // used. |
| IRegisteredTask* Detach() { return task_.Detach(); } |
| |
| // Provide access to the current task. |
| IRegisteredTask* operator->() const { |
| IRegisteredTask* result = task_.Get(); |
| DCHECK(result); |
| return result; |
| } |
| |
| const base::string16& name() const { return name_; } |
| bool done() const { return done_; } |
| |
| private: |
| Microsoft::WRL::ComPtr<IRegisteredTaskCollection> tasks_; |
| Microsoft::WRL::ComPtr<IRegisteredTask> task_; |
| base::string16 name_; |
| long task_index_ = -1; // NOLINT, API requires a long. |
| long num_tasks_ = 0; // NOLINT, API requires a long. |
| bool done_ = false; |
| }; |
| |
| // Return the task with |task_name| and false if not found. |task| can be null |
| // when only interested in task's existence. |
| bool GetTask(const wchar_t* task_name, IRegisteredTask** task) { |
| for (TaskIterator it(root_task_folder_.Get()); !it.done(); it.Next()) { |
| if (::_wcsicmp(it.name().c_str(), task_name) == 0) { |
| if (task) |
| *task = it.Detach(); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| // Return the description of the task. |
| HRESULT GetTaskDescription(IRegisteredTask* task, |
| base::string16* description) { |
| DCHECK(task); |
| DCHECK(description); |
| |
| base::win::ScopedBstr task_name_bstr; |
| HRESULT hr = task->get_Name(task_name_bstr.Receive()); |
| base::string16 task_name = |
| base::string16(task_name_bstr ? task_name_bstr : L""); |
| if (FAILED(hr)) { |
| LOG(ERROR) << "Failed to get task name"; |
| } |
| |
| Microsoft::WRL::ComPtr<ITaskDefinition> task_info; |
| hr = task->get_Definition(&task_info); |
| if (FAILED(hr)) { |
| LOG(ERROR) << "Failed to get definition for task, " << task_name << ": " |
| << logging::SystemErrorCodeToString(hr); |
| return hr; |
| } |
| |
| Microsoft::WRL::ComPtr<IRegistrationInfo> reg_info; |
| hr = task_info->get_RegistrationInfo(®_info); |
| if (FAILED(hr)) { |
| LOG(ERROR) << "Failed to get registration info, " << task_name << ": " |
| << logging::SystemErrorCodeToString(hr); |
| return hr; |
| } |
| |
| base::win::ScopedBstr raw_description; |
| hr = reg_info->get_Description(raw_description.Receive()); |
| if (FAILED(hr)) { |
| LOG(ERROR) << "Failed to get description, " << task_name << ": " |
| << logging::SystemErrorCodeToString(hr); |
| return hr; |
| } |
| *description = base::string16(raw_description ? raw_description : L""); |
| return ERROR_SUCCESS; |
| } |
| |
| // Return all executable actions associated with the given task. Non-exec |
| // actions are silently ignored. |
| bool GetTaskExecActions(IRegisteredTask* task, |
| std::vector<TaskExecAction>* actions) { |
| DCHECK(task); |
| DCHECK(actions); |
| Microsoft::WRL::ComPtr<ITaskDefinition> task_definition; |
| HRESULT hr = task->get_Definition(&task_definition); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to get definition of task, " << std::hex << hr; |
| return false; |
| } |
| |
| Microsoft::WRL::ComPtr<IActionCollection> action_collection; |
| hr = task_definition->get_Actions(&action_collection); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to get action collection, " << std::hex << hr; |
| return false; |
| } |
| |
| long actions_count = 0; // NOLINT, API requires a long. |
| hr = action_collection->get_Count(&actions_count); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to get number of actions, " << std::hex << hr; |
| return false; |
| } |
| |
| // Find and return as many exec actions as possible in |actions| and return |
| // false if there were any errors on the way. Note that the indexing of |
| // actions is 1-based. |
| bool success = true; |
| for (long action_index = 1; // NOLINT |
| action_index <= actions_count; ++action_index) { |
| Microsoft::WRL::ComPtr<IAction> action; |
| hr = action_collection->get_Item(action_index, &action); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to get action at index " << action_index << ", " |
| << std::hex << hr; |
| success = false; |
| continue; |
| } |
| |
| ::TASK_ACTION_TYPE action_type; |
| hr = action->get_Type(&action_type); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to get the type of action at index " |
| << action_index << ", " << std::hex << hr; |
| success = false; |
| continue; |
| } |
| |
| // We only care about exec actions for now. The other types are |
| // TASK_ACTION_COM_HANDLER, TASK_ACTION_SEND_EMAIL, |
| // TASK_ACTION_SHOW_MESSAGE. The latter two are marked as deprecated in |
| // the Task Scheduler's GUI. |
| if (action_type != ::TASK_ACTION_EXEC) |
| continue; |
| |
| Microsoft::WRL::ComPtr<IExecAction> exec_action; |
| hr = action.As(&exec_action); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to query from action, " << std::hex << hr; |
| success = false; |
| continue; |
| } |
| |
| base::win::ScopedBstr application_path; |
| hr = exec_action->get_Path(application_path.Receive()); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to get path from action, " << std::hex << hr; |
| success = false; |
| continue; |
| } |
| |
| base::win::ScopedBstr working_dir; |
| hr = exec_action->get_WorkingDirectory(working_dir.Receive()); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to get working directory for action, " |
| << std::hex << hr; |
| success = false; |
| continue; |
| } |
| |
| base::win::ScopedBstr parameters; |
| hr = exec_action->get_Arguments(parameters.Receive()); |
| if (FAILED(hr)) { |
| PLOG(ERROR) << "Failed to get arguments from action of task, " |
| << std::hex << hr; |
| success = false; |
| continue; |
| } |
| |
| actions->push_back( |
| {base::FilePath(application_path ? application_path : L""), |
| base::FilePath(working_dir ? working_dir : L""), |
| base::string16(parameters ? parameters : L"")}); |
| } |
| return success; |
| } |
| |
| // Return the log-on type required for the task's actions to be run. |
| HRESULT GetTaskLogonType(IRegisteredTask* task, uint32_t* logon_type) { |
| DCHECK(task); |
| DCHECK(logon_type); |
| Microsoft::WRL::ComPtr<ITaskDefinition> task_info; |
| HRESULT hr = task->get_Definition(&task_info); |
| if (FAILED(hr)) { |
| LOG(ERROR) << "Failed to get definition, " << std::hex << hr << ": " |
| << logging::SystemErrorCodeToString(hr); |
| return hr; |
| } |
| |
| Microsoft::WRL::ComPtr<IPrincipal> principal; |
| hr = task_info->get_Principal(&principal); |
| if (FAILED(hr)) { |
| LOG(ERROR) << "Failed to get principal info, " << std::hex << hr << ": " |
| << logging::SystemErrorCodeToString(hr); |
| return hr; |
| } |
| |
| TASK_LOGON_TYPE raw_logon_type; |
| hr = principal->get_LogonType(&raw_logon_type); |
| if (FAILED(hr)) { |
| LOG(ERROR) << "Failed to get logon type info, " << std::hex << hr << ": " |
| << logging::SystemErrorCodeToString(hr); |
| return hr; |
| } |
| |
| switch (raw_logon_type) { |
| case TASK_LOGON_INTERACTIVE_TOKEN: |
| *logon_type = LOGON_INTERACTIVE; |
| break; |
| case TASK_LOGON_GROUP: // fall-thru |
| case TASK_LOGON_PASSWORD: // fall-thru |
| case TASK_LOGON_SERVICE_ACCOUNT: |
| *logon_type = LOGON_SERVICE; |
| break; |
| case TASK_LOGON_S4U: |
| *logon_type = LOGON_SERVICE | LOGON_S4U; |
| break; |
| case TASK_LOGON_INTERACTIVE_TOKEN_OR_PASSWORD: |
| *logon_type = LOGON_INTERACTIVE | LOGON_SERVICE; |
| break; |
| default: |
| *logon_type = LOGON_UNKNOWN; |
| break; |
| } |
| return ERROR_SUCCESS; |
| } |
| |
| static Microsoft::WRL::ComPtr<ITaskService> task_service_; |
| static Microsoft::WRL::ComPtr<ITaskFolder> root_task_folder_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TaskSchedulerV2); |
| }; |
| |
| Microsoft::WRL::ComPtr<ITaskService> TaskSchedulerV2::task_service_; |
| Microsoft::WRL::ComPtr<ITaskFolder> TaskSchedulerV2::root_task_folder_; |
| |
| } // namespace |
| |
| TaskScheduler::TaskInfo::TaskInfo() = default; |
| |
| TaskScheduler::TaskInfo::TaskInfo(const TaskScheduler::TaskInfo&) = default; |
| |
| TaskScheduler::TaskInfo::TaskInfo(TaskScheduler::TaskInfo&&) = default; |
| |
| TaskScheduler::TaskInfo& TaskScheduler::TaskInfo::operator=( |
| const TaskScheduler::TaskInfo&) = default; |
| |
| TaskScheduler::TaskInfo& TaskScheduler::TaskInfo::operator=( |
| TaskScheduler::TaskInfo&&) = default; |
| |
| TaskScheduler::TaskInfo::~TaskInfo() = default; |
| |
| // static. |
| bool TaskScheduler::Initialize() { |
| return TaskSchedulerV2::Initialize(); |
| } |
| |
| // static. |
| void TaskScheduler::Terminate() { |
| TaskSchedulerV2::Terminate(); |
| } |
| |
| // static. |
| std::unique_ptr<TaskScheduler> TaskScheduler::CreateInstance() { |
| return std::make_unique<TaskSchedulerV2>(); |
| } |
| |
| TaskScheduler::TaskScheduler() = default; |
| |
| } // namespace updater |
