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 // Work around warning in atlbase.h
   6 // https://connect.microsoft.com/VisualStudio/feedback/details/1032199/atlbase-h-gives-warning-c4189-when-compiling-with-atl-no-com-support
   7 #pragma warning(push)
   8 #pragma warning(disable:4189)
   9 #include <atlbase.h>
  10 #pragma warning(pop)
  11 #include <security.h>
  12
  13 #include <iomanip>
  14 #include <iostream>
  15 #include <iterator>
  16 #include <string>
  17 #include <vector>
  18
  19 #include "base/at_exit.h"
  20 #include "base/bind.h"
  21 #include "base/callback_helpers.h"
  22 #include "base/command_line.h"
  23 #include "base/files/file_util.h"
  24 #include "base/guid.h"
  25 #include "base/logging.h"
  26 #include "base/path_service.h"
  27 #include "base/strings/string_util.h"
  28 #include "base/strings/utf_string_conversions.h"
  29 #include "base/win/scoped_handle.h"
  30 #include "chrome/common/chrome_constants.h"
  31 #include "chrome/common/chrome_switches.h"
  32 #include "cloud_print/common/win/cloud_print_utils.h"
  33 #include "cloud_print/service/service_constants.h"
  34 #include "cloud_print/service/service_state.h"
  35 #include "cloud_print/service/service_switches.h"
  36 #include "cloud_print/service/win/chrome_launcher.h"
  37 #include "cloud_print/service/win/service_controller.h"
  38 #include "cloud_print/service/win/service_listener.h"
  39 #include "cloud_print/service/win/service_utils.h"
  40 #include "cloud_print/service/win/setup_listener.h"
  41
  42 namespace {
  43
  44 void InvalidUsage() {
  45   base::FilePath service_path;
  46   CHECK(PathService::Get(base::FILE_EXE, &service_path));
  47
  48   std::cout << cloud_print::LoadLocalString(IDS_COMMAND_LINE_HELP_TITLE);
  49   std::cout << " " << service_path.BaseName().value();
  50   std::cout << " [";
  51     std::cout << "[";
  52       std::cout << "[";
  53         std::cout << " -" << kInstallSwitch;
  54         std::cout << " [ -" << switches::kUserDataDir << "=DIRECTORY ]";
  55       std::cout << "]";
  56     std::cout << "]";
  57     std::cout << " | -" << kUninstallSwitch;
  58     std::cout << " | -" << kStartSwitch;
  59     std::cout << " | -" << kStopSwitch;
  60   std::cout << " ]\n";
  61   std::cout << cloud_print::LoadLocalString(IDS_COMMAND_LINE_DESCRIPTION);
  62   std::cout << "\n\n";
  63
  64   struct {
  65     const char* name;
  66     int description;
  67   } kSwitchHelp[] = {{
  68     kInstallSwitch, IDS_SWITCH_HELP_INSTALL
  69   }, {
  70     switches::kUserDataDir, IDS_SWITCH_HELP_DATA_DIR
  71   }, {
  72     kUninstallSwitch, IDS_SWITCH_HELP_UNINSTALL
  73   }, {
  74     kStartSwitch, IDS_SWITCH_HELP_START
  75   }, {
  76     kStopSwitch, IDS_SWITCH_HELP_STOP
  77   }};
  78
  79   for (size_t i = 0; i < arraysize(kSwitchHelp); ++i) {
  80     std::cout << std::setiosflags(std::ios::left);
  81     std::cout << "  -" << std::setw(16) << kSwitchHelp[i].name;
  82     std::cout << cloud_print::LoadLocalString(kSwitchHelp[i].description);
  83     std::cout << "\n";
  84   }
  85   std::cout << "\n";
  86 }
  87
  88 base::string16 GetOption(int string_id,
  89                          const base::string16& default_option,
  90                          bool secure) {
  91   base::string16 prompt_format = cloud_print::LoadLocalString(string_id);
  92   std::vector<base::string16> substitutions(1, default_option);
  93   std::cout << ReplaceStringPlaceholders(prompt_format, substitutions, NULL);
  94   base::string16 tmp;
  95   if (secure) {
  96     DWORD saved_mode = 0;
  97     // Don't close.
  98     HANDLE stdin_handle = ::GetStdHandle(STD_INPUT_HANDLE);
  99     ::GetConsoleMode(stdin_handle, &saved_mode);
 100     ::SetConsoleMode(stdin_handle, saved_mode & ~ENABLE_ECHO_INPUT);
 101     std::getline(std::wcin, tmp);
 102     ::SetConsoleMode(stdin_handle, saved_mode);
 103     std::cout << "\n";
 104   } else {
 105     std::getline(std::wcin, tmp);
 106   }
 107   if (tmp.empty())
 108     return default_option;
 109   return tmp;
 110 }
 111
 112 HRESULT ReportError(HRESULT hr, int string_id) {
 113   LOG(ERROR) << cloud_print::GetErrorMessage(hr);
 114   std::cerr << cloud_print::LoadLocalString(string_id);
 115   std::cerr << "\n";
 116   return hr;
 117 }
 118
 119 base::string16 StateAsString(ServiceController::State state) {
 120   DWORD string_id = 0;
 121   switch(state) {
 122   case ServiceController::STATE_NOT_FOUND:
 123     string_id = IDS_SERVICE_NOT_FOUND;
 124     break;
 125   case ServiceController::STATE_STOPPED:
 126     string_id = IDS_SERVICE_STOPPED;
 127     break;
 128   case ServiceController::STATE_RUNNING:
 129     string_id = IDS_SERVICE_RUNNING;
 130     break;
 131   }
 132   return string_id ? cloud_print::LoadLocalString(string_id) : base::string16();
 133 }
 134
 135 }  // namespace
 136
 137
 138 class CloudPrintServiceModule
 139     : public ATL::CAtlServiceModuleT<CloudPrintServiceModule,
 140                                      IDS_SERVICE_NAME> {
 141  public:
 142   typedef ATL::CAtlServiceModuleT<CloudPrintServiceModule,
 143                                   IDS_SERVICE_NAME> Base;
 144
 145   CloudPrintServiceModule()
 146       : check_requirements_(false),
 147         controller_(new ServiceController()) {
 148   }
 149
 150   static wchar_t* GetAppIdT() {
 151     return ServiceController::GetAppIdT();
 152   };
 153
 154   HRESULT InitializeSecurity() {
 155     // TODO(gene): Check if we need to call CoInitializeSecurity and provide
 156     // the appropriate security settings for service.
 157     return S_OK;
 158   }
 159
 160   bool ParseCommandLine(LPCTSTR lpCmdLine, HRESULT* pnRetCode) {
 161     CHECK(pnRetCode);
 162     base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
 163     command_line.ParseFromString(lpCmdLine);
 164
 165     LOG(INFO) << command_line.GetCommandLineString();
 166
 167     bool is_service = false;
 168     *pnRetCode = ParseCommandLine(command_line, &is_service);
 169     if (FAILED(*pnRetCode)) {
 170       ReportError(*pnRetCode, IDS_OPERATION_FAILED_TITLE);
 171     }
 172     if (!is_service) {
 173       controller_->UpdateState();
 174       std::cout << cloud_print::LoadLocalString(IDS_STATE_LABEL);
 175       std::cout << " " << StateAsString(controller_->state());
 176     }
 177     return is_service;
 178   }
 179
 180   HRESULT PreMessageLoop(int nShowCmd) {
 181     HRESULT hr = Base::PreMessageLoop(nShowCmd);
 182     if (FAILED(hr))
 183       return hr;
 184
 185     if (check_requirements_) {
 186       CheckRequirements();
 187     } else {
 188       HRESULT hr = StartConnector();
 189       if (FAILED(hr))
 190         return hr;
 191     }
 192
 193     LogEvent(_T("Service started/resumed"));
 194     SetServiceStatus(SERVICE_RUNNING);
 195
 196     return hr;
 197   }
 198
 199   HRESULT PostMessageLoop() {
 200     StopConnector();
 201     setup_listener_.reset();
 202     return Base::PostMessageLoop();
 203   }
 204
 205  private:
 206   HRESULT ParseCommandLine(const base::CommandLine& command_line,
 207                            bool* is_service) {
 208     if (!is_service)
 209       return E_INVALIDARG;
 210     *is_service = false;
 211
 212     user_data_dir_switch_ =
 213         command_line.GetSwitchValuePath(switches::kUserDataDir);
 214     if (!user_data_dir_switch_.empty())
 215       user_data_dir_switch_ = base::MakeAbsoluteFilePath(user_data_dir_switch_);
 216
 217     if (command_line.HasSwitch(kStopSwitch))
 218       return controller_->StopService();
 219
 220     if (command_line.HasSwitch(kUninstallSwitch))
 221       return controller_->UninstallService();
 222
 223     if (command_line.HasSwitch(kInstallSwitch)) {
 224       base::string16 run_as_user;
 225       base::string16 run_as_password;
 226       base::FilePath user_data_dir;
 227       std::vector<std::string> printers;
 228       HRESULT hr = SelectWindowsAccount(&run_as_user, &run_as_password,
 229                                         &user_data_dir, &printers);
 230       if (FAILED(hr))
 231         return hr;
 232
 233       DCHECK(user_data_dir_switch_.empty() ||
 234              user_data_dir_switch_ == user_data_dir);
 235
 236       hr = SetupServiceState(user_data_dir, printers);
 237       if (FAILED(hr))
 238         return hr;
 239
 240       hr = controller_->InstallConnectorService(
 241           run_as_user, run_as_password, user_data_dir_switch_,
 242           command_line.HasSwitch(switches::kEnableLogging));
 243       if (SUCCEEDED(hr) && command_line.HasSwitch(kStartSwitch))
 244         return controller_->StartService();
 245
 246       return hr;
 247     }
 248
 249     if (command_line.HasSwitch(kStartSwitch))
 250       return controller_->StartService();
 251
 252     if (command_line.HasSwitch(kConsoleSwitch)) {
 253       check_requirements_ = command_line.HasSwitch(kRequirementsSwitch);
 254       ::SetConsoleCtrlHandler(&ConsoleCtrlHandler, TRUE);
 255       HRESULT hr = Run();
 256       ::SetConsoleCtrlHandler(NULL, FALSE);
 257       return hr;
 258     }
 259
 260     if (command_line.HasSwitch(kServiceSwitch) ||
 261         command_line.HasSwitch(kRequirementsSwitch)) {
 262       *is_service = true;
 263       check_requirements_ = command_line.HasSwitch(kRequirementsSwitch);
 264       return S_OK;
 265     }
 266
 267
 268     InvalidUsage();
 269     return S_FALSE;
 270   }
 271
 272   HRESULT SelectWindowsAccount(base::string16* run_as_user,
 273                                base::string16* run_as_password,
 274                                base::FilePath* user_data_dir,
 275                                std::vector<std::string>* printers) {
 276     *run_as_user = GetCurrentUserName();
 277     std::cout << cloud_print::LoadLocalString(IDS_WINDOWS_USER_PROMPT1) << "\n";
 278     *run_as_user = GetOption(IDS_WINDOWS_USER_PROMPT2, *run_as_user, false);
 279     *run_as_user = ReplaceLocalHostInName(*run_as_user);
 280     *run_as_password = GetOption(IDS_WINDOWS_PASSWORD_PROMPT, L"", true);
 281     SetupListener setup(*run_as_user);
 282     HRESULT hr = controller_->InstallCheckService(*run_as_user,
 283                                                   *run_as_password,
 284                                                   user_data_dir_switch_);
 285     if (FAILED(hr)) {
 286       return ReportError(hr, IDS_ERROR_FAILED_INSTALL_SERVICE);
 287     }
 288
 289     {
 290       // Always uninstall service after requirements check.
 291       base::ScopedClosureRunner scoped_uninstall(
 292           base::Bind(base::IgnoreResult(&ServiceController::UninstallService),
 293                      base::Unretained(controller_.get())));
 294
 295       hr = controller_->StartService();
 296       if (FAILED(hr)) {
 297         return ReportError(hr, IDS_ERROR_FAILED_START_SERVICE);
 298       }
 299
 300       if (!setup.WaitResponce(base::TimeDelta::FromSeconds(30))) {
 301         return ReportError(E_FAIL, IDS_ERROR_FAILED_START_SERVICE);
 302       }
 303     }
 304
 305     if (setup.user_data_dir().empty()) {
 306       return ReportError(E_FAIL, IDS_ERROR_NO_DATA_DIR);
 307     }
 308
 309     if (setup.chrome_path().empty()) {
 310       return ReportError(E_FAIL, IDS_ERROR_NO_CHROME);
 311     }
 312
 313     if (!setup.is_xps_available()) {
 314       return ReportError(E_FAIL, IDS_ERROR_NO_XPS);
 315     }
 316
 317     std::cout << "\n";
 318     std::cout << cloud_print::LoadLocalString(IDS_SERVICE_ENV_CHECK);
 319     std::cout << "\n";
 320     std::cout << cloud_print::LoadLocalString(IDS_SERVICE_ENV_USER);
 321     std::cout << "\n  " << setup.user_name() << "\n";
 322     std::cout << cloud_print::LoadLocalString(IDS_SERVICE_ENV_CHROME);
 323     std::cout << "\n  " << setup.chrome_path().value() << "\n";
 324     std::cout << cloud_print::LoadLocalString(IDS_SERVICE_ENV_DATADIR);
 325     std::cout << "\n  " << setup.user_data_dir().value() << "\n";
 326     std::cout << cloud_print::LoadLocalString(IDS_SERVICE_ENV_PRINTERS);
 327     std::cout << "\n  ";
 328     std::ostream_iterator<std::string> cout_it(std::cout, "\n  ");
 329     std::copy(setup.printers().begin(), setup.printers().end(), cout_it);
 330     std::cout << "\n";
 331
 332     *user_data_dir = setup.user_data_dir();
 333     *printers = setup.printers();
 334     return S_OK;
 335   }
 336
 337   HRESULT SetupServiceState(const base::FilePath& user_data_dir,
 338                             const std::vector<std::string>& printers) {
 339     base::FilePath file = user_data_dir.Append(chrome::kServiceStateFileName);
 340
 341     std::string contents;
 342     base::ReadFileToString(file, &contents);
 343     ServiceState service_state;
 344     service_state.FromString(contents);
 345     std::string proxy_id = service_state.proxy_id();
 346
 347     LOG(INFO) << file.value() << ": " << contents;
 348
 349     base::string16 message =
 350         cloud_print::LoadLocalString(IDS_ADD_PRINTERS_USING_CHROME);
 351     std::cout << "\n" << message.c_str() << "\n" ;
 352     std::string new_contents =
 353         ChromeLauncher::CreateServiceStateFile(proxy_id, printers);
 354
 355     if (new_contents.empty()) {
 356       return ReportError(E_FAIL, IDS_ERROR_FAILED_CREATE_CONFIG);
 357     }
 358
 359     if (new_contents != contents) {
 360       size_t  written = base::WriteFile(file, new_contents.c_str(),
 361                                               new_contents.size());
 362       if (written != new_contents.size()) {
 363         return ReportError(cloud_print::GetLastHResult(),
 364                            IDS_ERROR_FAILED_CREATE_CONFIG);
 365       }
 366     }
 367
 368     return S_OK;
 369   }
 370
 371   void CheckRequirements() {
 372     setup_listener_.reset(new ServiceListener(GetUserDataDir()));
 373   }
 374
 375   HRESULT StartConnector() {
 376     chrome_.reset(new ChromeLauncher(GetUserDataDir()));
 377     return chrome_->Start() ? S_OK : E_FAIL;
 378   }
 379
 380   void StopConnector() {
 381     if (chrome_.get()) {
 382       chrome_->Stop();
 383       chrome_.reset();
 384     }
 385   }
 386
 387   base::FilePath GetUserDataDir() const {
 388     if (!user_data_dir_switch_.empty())
 389       return user_data_dir_switch_;
 390     base::FilePath result;
 391     CHECK(PathService::Get(base::DIR_LOCAL_APP_DATA, &result));
 392     return result.Append(kSubDirectory);
 393   }
 394
 395   static BOOL WINAPI ConsoleCtrlHandler(DWORD type);
 396
 397   bool check_requirements_;
 398   base::FilePath user_data_dir_switch_;
 399   scoped_ptr<ChromeLauncher> chrome_;
 400   scoped_ptr<ServiceController> controller_;
 401   scoped_ptr<ServiceListener> setup_listener_;
 402 };
 403
 404 CloudPrintServiceModule _AtlModule;
 405
 406 BOOL CloudPrintServiceModule::ConsoleCtrlHandler(DWORD type) {
 407   PostThreadMessage(_AtlModule.m_dwThreadID, WM_QUIT, 0, 0);
 408   return TRUE;
 409 }
 410
 411 int main(int argc, char** argv) {
 412   base::CommandLine::Init(argc, argv);
 413   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 414   base::AtExitManager at_exit;
 415
 416   logging::LoggingSettings settings;
 417   settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
 418   logging::InitLogging(settings);
 419
 420   logging::SetMinLogLevel(
 421       command_line->HasSwitch(switches::kEnableLogging) ?
 422       logging::LOG_INFO : logging::LOG_FATAL);
 423
 424   return _AtlModule.WinMain(0);
 425 }
 426