cloud_print/service/win/cloud_print_service.cc

   1 // Copyright (c) 2012 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 <atlbase.h>
   6 #include <security.h>
   7
   8 #include <iomanip>
   9 #include <iostream>
  10 #include <iterator>
  11 #include <string>
  12 #include <vector>
  13
  14 #include "base/at_exit.h"
  15 #include "base/bind.h"
  16 #include "base/callback_helpers.h"
  17 #include "base/command_line.h"
  18 #include "base/file_util.h"
  19 #include "base/guid.h"
  20 #include "base/logging.h"
  21 #include "base/path_service.h"
  22 #include "base/strings/string_util.h"
  23 #include "base/strings/utf_string_conversions.h"
  24 #include "base/win/scoped_handle.h"
  25 #include "chrome/common/chrome_constants.h"
  26 #include "chrome/common/chrome_switches.h"
  27 #include "cloud_print/common/win/cloud_print_utils.h"
  28 #include "cloud_print/service/service_constants.h"
  29 #include "cloud_print/service/service_state.h"
  30 #include "cloud_print/service/service_switches.h"
  31 #include "cloud_print/service/win/chrome_launcher.h"
  32 #include "cloud_print/service/win/service_controller.h"
  33 #include "cloud_print/service/win/service_listener.h"
  34 #include "cloud_print/service/win/service_utils.h"
  35 #include "cloud_print/service/win/setup_listener.h"
  36
  37 namespace {
  38
  39 void InvalidUsage() {
  40   base::FilePath service_path;
  41   CHECK(PathService::Get(base::FILE_EXE, &service_path));
  42
  43   std::cout << cloud_print::LoadLocalString(IDS_COMMAND_LINE_HELP_TITLE);
  44   std::cout << " " << service_path.BaseName().value();
  45   std::cout << " [";
  46     std::cout << "[";
  47       std::cout << "[";
  48         std::cout << " -" << kInstallSwitch;
  49         std::cout << " [ -" << switches::kUserDataDir << "=DIRECTORY ]";
  50       std::cout << "]";
  51     std::cout << "]";
  52     std::cout << " | -" << kUninstallSwitch;
  53     std::cout << " | -" << kStartSwitch;
  54     std::cout << " | -" << kStopSwitch;
  55   std::cout << " ]\n";
  56   std::cout << cloud_print::LoadLocalString(IDS_COMMAND_LINE_DESCRIPTION);
  57   std::cout << "\n\n";
  58
  59   struct {
  60     const char* name;
  61     int description;
  62   } kSwitchHelp[] = {{
  63     kInstallSwitch, IDS_SWITCH_HELP_INSTALL
  64   }, {
  65     switches::kUserDataDir, IDS_SWITCH_HELP_DATA_DIR
  66   }, {
  67     kUninstallSwitch, IDS_SWITCH_HELP_UNINSTALL
  68   }, {
  69     kStartSwitch, IDS_SWITCH_HELP_START
  70   }, {
  71     kStopSwitch, IDS_SWITCH_HELP_STOP
  72   }};
  73
  74   for (size_t i = 0; i < arraysize(kSwitchHelp); ++i) {
  75     std::cout << std::setiosflags(std::ios::left);
  76     std::cout << "  -" << std::setw(16) << kSwitchHelp[i].name;
  77     std::cout << cloud_print::LoadLocalString(kSwitchHelp[i].description);
  78     std::cout << "\n";
  79   }
  80   std::cout << "\n";
  81 }
  82
  83 base::string16 GetOption(int string_id, const base::string16& default,
  84                    bool secure) {
  85   base::string16 prompt_format = cloud_print::LoadLocalString(string_id);
  86   std::vector<base::string16> substitutions(1, default);
  87   std::cout << ReplaceStringPlaceholders(prompt_format, substitutions, NULL);
  88   base::string16 tmp;
  89   if (secure) {
  90     DWORD saved_mode = 0;
  91     // Don't close.
  92     HANDLE stdin_handle = ::GetStdHandle(STD_INPUT_HANDLE);
  93     ::GetConsoleMode(stdin_handle, &saved_mode);
  94     ::SetConsoleMode(stdin_handle, saved_mode & ~ENABLE_ECHO_INPUT);
  95     std::getline(std::wcin, tmp);
  96     ::SetConsoleMode(stdin_handle, saved_mode);
  97     std::cout << "\n";
  98   } else {
  99     std::getline(std::wcin, tmp);
 100   }
 101   if (tmp.empty())
 102     return default;
 103   return tmp;
 104 }
 105
 106 HRESULT ReportError(HRESULT hr, int string_id) {
 107   LOG(ERROR) << cloud_print::GetErrorMessage(hr);
 108   std::cerr << cloud_print::LoadLocalString(string_id);
 109   std::cerr << "\n";
 110   return hr;
 111 }
 112
 113 base::string16 StateAsString(ServiceController::State state) {
 114   DWORD string_id = 0;
 115   switch(state) {
 116   case ServiceController::STATE_NOT_FOUND:
 117     string_id = IDS_SERVICE_NOT_FOUND;
 118     break;
 119   case ServiceController::STATE_STOPPED:
 120     string_id = IDS_SERVICE_STOPPED;
 121     break;
 122   case ServiceController::STATE_RUNNING:
 123     string_id = IDS_SERVICE_RUNNING;
 124     break;
 125   }
 126   return string_id ? cloud_print::LoadLocalString(string_id) : base::string16();
 127 }
 128
 129 }  // namespace
 130
 131
 132 class CloudPrintServiceModule
 133     : public ATL::CAtlServiceModuleT<CloudPrintServiceModule,
 134                                      IDS_SERVICE_NAME> {
 135  public:
 136   typedef ATL::CAtlServiceModuleT<CloudPrintServiceModule,
 137                                   IDS_SERVICE_NAME> Base;
 138
 139   CloudPrintServiceModule()
 140       : check_requirements_(false),
 141         controller_(new ServiceController()) {
 142   }
 143
 144   static wchar_t* GetAppIdT() {
 145     return ServiceController::GetAppIdT();
 146   };
 147
 148   HRESULT InitializeSecurity() {
 149     // TODO(gene): Check if we need to call CoInitializeSecurity and provide
 150     // the appropriate security settings for service.
 151     return S_OK;
 152   }
 153
 154   bool ParseCommandLine(LPCTSTR lpCmdLine, HRESULT* pnRetCode) {
 155     CHECK(pnRetCode);
 156     CommandLine command_line(CommandLine::NO_PROGRAM);
 157     command_line.ParseFromString(lpCmdLine);
 158
 159     LOG(INFO) << command_line.GetCommandLineString();
 160
 161     bool is_service = false;
 162     *pnRetCode = ParseCommandLine(command_line, &is_service);
 163     if (FAILED(*pnRetCode)) {
 164       ReportError(*pnRetCode, IDS_OPERATION_FAILED_TITLE);
 165     }
 166     if (!is_service) {
 167       controller_->UpdateState();
 168       std::cout << cloud_print::LoadLocalString(IDS_STATE_LABEL);
 169       std::cout << " " << StateAsString(controller_->state());
 170     }
 171     return is_service;
 172   }
 173
 174   HRESULT PreMessageLoop(int nShowCmd) {
 175     HRESULT hr = Base::PreMessageLoop(nShowCmd);
 176     if (FAILED(hr))
 177       return hr;
 178
 179     if (check_requirements_) {
 180       CheckRequirements();
 181     } else {
 182       HRESULT hr = StartConnector();
 183       if (FAILED(hr))
 184         return hr;
 185     }
 186
 187     LogEvent(_T("Service started/resumed"));
 188     SetServiceStatus(SERVICE_RUNNING);
 189
 190     return hr;
 191   }
 192
 193   HRESULT PostMessageLoop() {
 194     StopConnector();
 195     setup_listener_.reset();
 196     return Base::PostMessageLoop();
 197   }
 198
 199  private:
 200   HRESULT ParseCommandLine(const CommandLine& command_line, bool* is_service) {
 201     if (!is_service)
 202       return E_INVALIDARG;
 203     *is_service = false;
 204
 205     user_data_dir_switch_ =
 206         command_line.GetSwitchValuePath(switches::kUserDataDir);
 207     if (!user_data_dir_switch_.empty())
 208       user_data_dir_switch_ = base::MakeAbsoluteFilePath(user_data_dir_switch_);
 209
 210     if (command_line.HasSwitch(kStopSwitch))
 211       return controller_->StopService();
 212
 213     if (command_line.HasSwitch(kUninstallSwitch))
 214       return controller_->UninstallService();
 215
 216     if (command_line.HasSwitch(kInstallSwitch)) {
 217       base::string16 run_as_user;
 218       base::string16 run_as_password;
 219       base::FilePath user_data_dir;
 220       std::vector<std::string> printers;
 221       HRESULT hr = SelectWindowsAccount(&run_as_user, &run_as_password,
 222                                         &user_data_dir, &printers);
 223       if (FAILED(hr))
 224         return hr;
 225
 226       DCHECK(user_data_dir_switch_.empty() ||
 227              user_data_dir_switch_ == user_data_dir);
 228
 229       hr = SetupServiceState(user_data_dir, printers);
 230       if (FAILED(hr))
 231         return hr;
 232
 233       hr = controller_->InstallConnectorService(
 234           run_as_user, run_as_password, user_data_dir_switch_,
 235           command_line.HasSwitch(switches::kEnableLogging));
 236       if (SUCCEEDED(hr) && command_line.HasSwitch(kStartSwitch))
 237         return controller_->StartService();
 238
 239       return hr;
 240     }
 241
 242     if (command_line.HasSwitch(kStartSwitch))
 243       return controller_->StartService();
 244
 245     if (command_line.HasSwitch(kConsoleSwitch)) {
 246       check_requirements_ = command_line.HasSwitch(kRequirementsSwitch);
 247       ::SetConsoleCtrlHandler(&ConsoleCtrlHandler, TRUE);
 248       HRESULT hr = Run();
 249       ::SetConsoleCtrlHandler(NULL, FALSE);
 250       return hr;
 251     }
 252
 253     if (command_line.HasSwitch(kServiceSwitch) ||
 254         command_line.HasSwitch(kRequirementsSwitch)) {
 255       *is_service = true;
 256       check_requirements_ = command_line.HasSwitch(kRequirementsSwitch);
 257       return S_OK;
 258     }
 259
 260
 261     InvalidUsage();
 262     return S_FALSE;
 263   }
 264
 265   HRESULT SelectWindowsAccount(base::string16* run_as_user,
 266                                base::string16* run_as_password,
 267                                base::FilePath* user_data_dir,
 268                                std::vector<std::string>* printers) {
 269     *run_as_user = GetCurrentUserName();
 270     std::cout << cloud_print::LoadLocalString(IDS_WINDOWS_USER_PROMPT1) << "\n";
 271     *run_as_user = GetOption(IDS_WINDOWS_USER_PROMPT2, *run_as_user, false);
 272     *run_as_user = ReplaceLocalHostInName(*run_as_user);
 273     *run_as_password = GetOption(IDS_WINDOWS_PASSWORD_PROMPT, L"", true);
 274     SetupListener setup(*run_as_user);
 275     HRESULT hr = controller_->InstallCheckService(*run_as_user,
 276                                                   *run_as_password,
 277                                                   user_data_dir_switch_);
 278     if (FAILED(hr)) {
 279       return ReportError(hr, IDS_ERROR_FAILED_INSTALL_SERVICE);
 280     }
 281
 282     {
 283       // Always uninstall service after requirements check.
 284       base::ScopedClosureRunner scoped_uninstall(
 285           base::Bind(base::IgnoreResult(&ServiceController::UninstallService),
 286                      base::Unretained(controller_.get())));
 287
 288       hr = controller_->StartService();
 289       if (FAILED(hr)) {
 290         return ReportError(hr, IDS_ERROR_FAILED_START_SERVICE);
 291       }
 292
 293       if (!setup.WaitResponce(base::TimeDelta::FromSeconds(30))) {
 294         return ReportError(E_FAIL, IDS_ERROR_FAILED_START_SERVICE);
 295       }
 296     }
 297
 298     if (setup.user_data_dir().empty()) {
 299       return ReportError(E_FAIL, IDS_ERROR_NO_DATA_DIR);
 300     }
 301
 302     if (setup.chrome_path().empty()) {
 303       return ReportError(E_FAIL, IDS_ERROR_NO_CHROME);
 304     }
 305
 306     if (!setup.is_xps_available()) {
 307       return ReportError(E_FAIL, IDS_ERROR_NO_XPS);
 308     }
 309
 310     std::cout << "\n";
 311     std::cout << cloud_print::LoadLocalString(IDS_SERVICE_ENV_CHECK);
 312     std::cout << "\n";
 313     std::cout << cloud_print::LoadLocalString(IDS_SERVICE_ENV_USER);
 314     std::cout << "\n  " << setup.user_name() << "\n";
 315     std::cout << cloud_print::LoadLocalString(IDS_SERVICE_ENV_CHROME);
 316     std::cout << "\n  " << setup.chrome_path().value() << "\n";
 317     std::cout << cloud_print::LoadLocalString(IDS_SERVICE_ENV_DATADIR);
 318     std::cout << "\n  " << setup.user_data_dir().value() << "\n";
 319     std::cout << cloud_print::LoadLocalString(IDS_SERVICE_ENV_PRINTERS);
 320     std::cout << "\n  ";
 321     std::ostream_iterator<std::string> cout_it(std::cout, "\n  ");
 322     std::copy(setup.printers().begin(), setup.printers().end(), cout_it);
 323     std::cout << "\n";
 324
 325     *user_data_dir = setup.user_data_dir();
 326     *printers = setup.printers();
 327     return S_OK;
 328   }
 329
 330   HRESULT SetupServiceState(const base::FilePath& user_data_dir,
 331                             const std::vector<std::string>& printers) {
 332     base::FilePath file = user_data_dir.Append(chrome::kServiceStateFileName);
 333
 334     std::string contents;
 335     ServiceState service_state;
 336
 337     bool is_valid = base::ReadFileToString(file, &contents) &&
 338                     service_state.FromString(contents);
 339     std::string proxy_id = service_state.proxy_id();
 340
 341     LOG(INFO) << file.value() << ": " << contents;
 342
 343     base::string16 message =
 344         cloud_print::LoadLocalString(IDS_ADD_PRINTERS_USING_CHROME);
 345     std::cout << "\n" << message.c_str() << "\n" ;
 346     std::string new_contents =
 347         ChromeLauncher::CreateServiceStateFile(proxy_id, printers);
 348
 349     if (new_contents.empty()) {
 350       return ReportError(E_FAIL, IDS_ERROR_FAILED_CREATE_CONFIG);
 351     }
 352
 353     if (new_contents != contents) {
 354       size_t  written = base::WriteFile(file, new_contents.c_str(),
 355                                               new_contents.size());
 356       if (written != new_contents.size()) {
 357         return ReportError(cloud_print::GetLastHResult(),
 358                            IDS_ERROR_FAILED_CREATE_CONFIG);
 359       }
 360     }
 361
 362     return S_OK;
 363   }
 364
 365   void CheckRequirements() {
 366     setup_listener_.reset(new ServiceListener(GetUserDataDir()));
 367   }
 368
 369   HRESULT StartConnector() {
 370     chrome_.reset(new ChromeLauncher(GetUserDataDir()));
 371     return chrome_->Start() ? S_OK : E_FAIL;
 372   }
 373
 374   void StopConnector() {
 375     if (chrome_.get()) {
 376       chrome_->Stop();
 377       chrome_.reset();
 378     }
 379   }
 380
 381   base::FilePath GetUserDataDir() const {
 382     if (!user_data_dir_switch_.empty())
 383       return user_data_dir_switch_;
 384     base::FilePath result;
 385     CHECK(PathService::Get(base::DIR_LOCAL_APP_DATA, &result));
 386     return result.Append(kSubDirectory);
 387   }
 388
 389   static BOOL WINAPI ConsoleCtrlHandler(DWORD type);
 390
 391   bool check_requirements_;
 392   base::FilePath user_data_dir_switch_;
 393   scoped_ptr<ChromeLauncher> chrome_;
 394   scoped_ptr<ServiceController> controller_;
 395   scoped_ptr<ServiceListener> setup_listener_;
 396 };
 397
 398 CloudPrintServiceModule _AtlModule;
 399
 400 BOOL CloudPrintServiceModule::ConsoleCtrlHandler(DWORD type) {
 401   PostThreadMessage(_AtlModule.m_dwThreadID, WM_QUIT, 0, 0);
 402   return TRUE;
 403 }
 404
 405 int main(int argc, char** argv) {
 406   CommandLine::Init(argc, argv);
 407   base::AtExitManager at_exit;
 408
 409   logging::LoggingSettings settings;
 410   settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
 411   logging::InitLogging(settings);
 412
 413   logging::SetMinLogLevel(
 414       CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnableLogging) ?
 415       logging::LOG_INFO : logging::LOG_FATAL);
 416
 417   return _AtlModule.WinMain(0);
 418 }
 419