chrome/browser/extensions/extension_error_reporter.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 "chrome/browser/extensions/extension_error_reporter.h"
   6
   7 #include "build/build_config.h"
   8
   9 #include "base/bind.h"
  10 #include "base/bind_helpers.h"
  11 #include "base/files/file_path.h"
  12 #include "base/logging.h"
  13 #include "base/message_loop/message_loop.h"
  14 #include "base/strings/stringprintf.h"
  15 #include "base/strings/utf_string_conversions.h"
  16 #include "chrome/browser/profiles/profile.h"
  17 #include "chrome/browser/ui/simple_message_box.h"
  18 #include "content/public/browser/notification_service.h"
  19 #include "extensions/browser/notification_types.h"
  20 #include "grit/generated_resources.h"
  21 #include "ui/base/l10n/l10n_util.h"
  22
  23 ExtensionErrorReporter* ExtensionErrorReporter::instance_ = NULL;
  24
  25 // static
  26 void ExtensionErrorReporter::Init(bool enable_noisy_errors) {
  27   if (!instance_) {
  28     instance_ = new ExtensionErrorReporter(enable_noisy_errors);
  29   }
  30 }
  31
  32 // static
  33 ExtensionErrorReporter* ExtensionErrorReporter::GetInstance() {
  34   CHECK(instance_) << "Init() was never called";
  35   return instance_;
  36 }
  37
  38 ExtensionErrorReporter::ExtensionErrorReporter(bool enable_noisy_errors)
  39     : ui_loop_(base::MessageLoop::current()),
  40       enable_noisy_errors_(enable_noisy_errors) {
  41 }
  42
  43 ExtensionErrorReporter::~ExtensionErrorReporter() {}
  44
  45 void ExtensionErrorReporter::ReportLoadError(
  46     const base::FilePath& extension_path,
  47     const std::string& error,
  48     content::BrowserContext* browser_context,
  49     bool be_noisy) {
  50   content::NotificationService::current()->Notify(
  51       extensions::NOTIFICATION_EXTENSION_LOAD_ERROR,
  52       content::Source<Profile>(Profile::FromBrowserContext(browser_context)),
  53       content::Details<const std::string>(&error));
  54
  55   std::string path_str = base::UTF16ToUTF8(extension_path.LossyDisplayName());
  56   base::string16 message = base::UTF8ToUTF16(base::StringPrintf(
  57       "%s %s. %s",
  58       l10n_util::GetStringUTF8(IDS_EXTENSIONS_LOAD_ERROR_MESSAGE).c_str(),
  59       path_str.c_str(),
  60       error.c_str()));
  61   ReportError(message, be_noisy);
  62   FOR_EACH_OBSERVER(Observer,
  63                     observers_,
  64                     OnLoadFailure(browser_context, extension_path, error));
  65 }
  66
  67 void ExtensionErrorReporter::ReportError(const base::string16& message,
  68                                          bool be_noisy) {
  69   // NOTE: There won't be a ui_loop_ in the unit test environment.
  70   if (ui_loop_) {
  71     CHECK(base::MessageLoop::current() == ui_loop_)
  72         << "ReportError can only be called from the UI thread.";
  73   }
  74
  75   errors_.push_back(message);
  76
  77   // TODO(aa): Print the error message out somewhere better. I think we are
  78   // going to need some sort of 'extension inspector'.
  79   LOG(WARNING) << "Extension error: " << message;
  80
  81   if (enable_noisy_errors_ && be_noisy) {
  82     chrome::ShowMessageBox(
  83         NULL,
  84         l10n_util::GetStringUTF16(IDS_EXTENSIONS_LOAD_ERROR_HEADING),
  85         message,
  86         chrome::MESSAGE_BOX_TYPE_WARNING);
  87   }
  88 }
  89
  90 const std::vector<base::string16>* ExtensionErrorReporter::GetErrors() {
  91   return &errors_;
  92 }
  93
  94 void ExtensionErrorReporter::ClearErrors() {
  95   errors_.clear();
  96 }
  97
  98 void ExtensionErrorReporter::AddObserver(Observer* observer) {
  99   observers_.AddObserver(observer);
 100 }
 101
 102 void ExtensionErrorReporter::RemoveObserver(Observer* observer) {
 103   observers_.RemoveObserver(observer);
 104 }