chrome/browser/google/google_util_chromeos.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 "base/basictypes.h"
   6 #include "base/bind.h"
   7 #include "base/file_util.h"
   8 #include "base/files/file_path.h"
   9 #include "base/logging.h"
  10 #include "base/prefs/pref_service.h"
  11 #include "base/strings/string_util.h"
  12 #include "base/task_runner_util.h"
  13 #include "base/threading/worker_pool.h"
  14 #include "chrome/browser/browser_process.h"
  15 #include "chrome/common/pref_names.h"
  16 #include "content/public/browser/browser_thread.h"
  17
  18 namespace google_util {
  19 namespace chromeos {
  20
  21 namespace {
  22
  23 // Path to file that stores the RLZ brand code on ChromeOS.
  24 const base::FilePath::CharType kRLZBrandFilePath[] =
  25     FILE_PATH_LITERAL("/opt/oem/etc/BRAND_CODE");
  26
  27 // Reads the brand code from file |kRLZBrandFilePath|.
  28 std::string ReadBrandFromFile() {
  29   std::string brand;
  30   base::FilePath brand_file_path(kRLZBrandFilePath);
  31   if (!base::ReadFileToString(brand_file_path, &brand))
  32     LOG(WARNING) << "Brand code file missing: " << brand_file_path.value();
  33   TrimWhitespace(brand, TRIM_ALL, &brand);
  34   return brand;
  35 }
  36
  37 // Sets the brand code to |brand|.
  38 void SetBrand(const base::Closure& callback, const std::string& brand) {
  39   g_browser_process->local_state()->SetString(prefs::kRLZBrand, brand);
  40   callback.Run();
  41 }
  42
  43 // True if brand code has been cleared for the current session.
  44 bool g_brand_empty = false;
  45
  46 }  // namespace
  47
  48 void ClearBrandForCurrentSession() {
  49   DCHECK(!content::BrowserThread::IsThreadInitialized(
  50              content::BrowserThread::UI) ||
  51          content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
  52   g_brand_empty = true;
  53 }
  54
  55 std::string GetBrand() {
  56   DCHECK(!content::BrowserThread::IsThreadInitialized(
  57              content::BrowserThread::UI) ||
  58          content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
  59   if (g_brand_empty)
  60     return std::string();
  61   DCHECK(g_browser_process->local_state());
  62   return g_browser_process->local_state()->GetString(prefs::kRLZBrand);
  63 }
  64
  65 void SetBrandFromFile(const base::Closure& callback) {
  66   base::PostTaskAndReplyWithResult(
  67       base::WorkerPool::GetTaskRunner(false /* task_is_slow */).get(),
  68       FROM_HERE,
  69       base::Bind(&ReadBrandFromFile),
  70       base::Bind(&SetBrand, callback));
  71 }
  72
  73 }  // namespace chromeos
  74 }  // namespace google_util