sync/util/get_session_name.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 "sync/util/get_session_name.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/callback.h"
  10 #include "base/location.h"
  11 #include "base/sys_info.h"
  12 #include "base/task_runner.h"
  13
  14 #if defined(OS_CHROMEOS)
  15 #include "base/command_line.h"
  16 #include "chromeos/chromeos_switches.h"
  17 #elif defined(OS_LINUX)
  18 #include "base/linux_util.h"
  19 #elif defined(OS_IOS)
  20 #include "sync/util/get_session_name_ios.h"
  21 #elif defined(OS_MACOSX)
  22 #include "sync/util/get_session_name_mac.h"
  23 #elif defined(OS_WIN)
  24 #include "sync/util/get_session_name_win.h"
  25 #elif defined(OS_ANDROID)
  26 #include "base/android/build_info.h"
  27 #endif
  28
  29 namespace syncer {
  30
  31 namespace {
  32
  33 std::string GetSessionNameSynchronously() {
  34   std::string session_name;
  35 #if defined(OS_CHROMEOS)
  36   // The approach below is similar to that used by the CrOs implementation of
  37   // StatisticsProvider::GetMachineStatistic(CHROMEOS_RELEASE_BOARD).
  38   // See chrome/browser/chromeos/system/statistics_provider.{h|cc}.
  39   //
  40   // We cannot use StatisticsProvider here because of the mutual dependency
  41   // it creates between sync.gyp:sync and chrome.gyp:browser.
  42   //
  43   // Even though this code is ad hoc and fragile, it remains the only means of
  44   // determining the Chrome OS hardware platform so we can display the right
  45   // device name in the "Other devices" section of the new tab page.
  46   // TODO(rsimha): Change this once a better alternative is available.
  47   // See http://crbug.com/126732.
  48   std::string board;
  49   const CommandLine* command_line = CommandLine::ForCurrentProcess();
  50   if (command_line->HasSwitch(chromeos::switches::kChromeOSReleaseBoard)) {
  51     board = command_line->
  52         GetSwitchValueASCII(chromeos::switches::kChromeOSReleaseBoard);
  53   } else {
  54     LOG(ERROR) << "Failed to get board information";
  55   }
  56
  57   // Currently, only "stumpy" type of board is considered Chromebox, and
  58   // anything else is Chromebook.  On these devices, session_name should look
  59   // like "stumpy-signed-mp-v2keys" etc. The information can be checked on
  60   // "CHROMEOS_RELEASE_BOARD" line in chrome://system.
  61   session_name = board.substr(0, 6) == "stumpy" ? "Chromebox" : "Chromebook";
  62 #elif defined(OS_LINUX)
  63   session_name = base::GetLinuxDistro();
  64 #elif defined(OS_IOS)
  65   session_name = internal::GetComputerName();
  66 #elif defined(OS_MACOSX)
  67   session_name = internal::GetHardwareModelName();
  68 #elif defined(OS_WIN)
  69   session_name = internal::GetComputerName();
  70 #elif defined(OS_ANDROID)
  71   base::android::BuildInfo* android_build_info =
  72       base::android::BuildInfo::GetInstance();
  73   session_name = android_build_info->model();
  74 #endif
  75
  76   if (session_name == "Unknown" || session_name.empty())
  77     session_name = base::SysInfo::OperatingSystemName();
  78
  79   return session_name;
  80 }
  81
  82 void FillSessionName(std::string* session_name) {
  83   *session_name = GetSessionNameSynchronously();
  84 }
  85
  86 void OnSessionNameFilled(
  87     const base::Callback<void(const std::string&)>& done_callback,
  88     std::string* session_name) {
  89   done_callback.Run(*session_name);
  90 }
  91
  92 }  // namespace
  93
  94 void GetSessionName(
  95     const scoped_refptr<base::TaskRunner>& task_runner,
  96     const base::Callback<void(const std::string&)>& done_callback) {
  97   std::string* session_name = new std::string();
  98   task_runner->PostTaskAndReply(
  99       FROM_HERE,
 100       base::Bind(&FillSessionName,
 101                  base::Unretained(session_name)),
 102       base::Bind(&OnSessionNameFilled,
 103                  done_callback,
 104                  base::Owned(session_name)));
 105 }
 106
 107 std::string GetSessionNameSynchronouslyForTesting() {
 108   return GetSessionNameSynchronously();
 109 }
 110
 111 }  // namespace syncer