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
  21 ExtensionErrorReporter* ExtensionErrorReporter::instance_ = NULL;
  22
  23 // static
  24 void ExtensionErrorReporter::Init(bool enable_noisy_errors) {
  25   if (!instance_) {
  26     instance_ = new ExtensionErrorReporter(enable_noisy_errors);
  27   }
  28 }
  29
  30 // static
  31 ExtensionErrorReporter* ExtensionErrorReporter::GetInstance() {
  32   CHECK(instance_) << "Init() was never called";
  33   return instance_;
  34 }
  35
  36 ExtensionErrorReporter::ExtensionErrorReporter(bool enable_noisy_errors)
  37     : ui_loop_(base::MessageLoop::current()),
  38       enable_noisy_errors_(enable_noisy_errors) {
  39 }
  40
  41 ExtensionErrorReporter::~ExtensionErrorReporter() {}
  42
  43 void ExtensionErrorReporter::ReportLoadError(
  44     const base::FilePath& extension_path,
  45     const std::string& error,
  46     content::BrowserContext* browser_context,
  47     bool be_noisy) {
  48   content::NotificationService::current()->Notify(
  49       extensions::NOTIFICATION_EXTENSION_LOAD_ERROR,
  50       content::Source<Profile>(Profile::FromBrowserContext(browser_context)),
  51       content::Details<const std::string>(&error));
  52
  53   std::string path_str = base::UTF16ToUTF8(extension_path.LossyDisplayName());
  54   base::string16 message = base::UTF8ToUTF16(
  55       base::StringPrintf("Could not load extension from '%s'. %s",
  56                          path_str.c_str(),
  57                          error.c_str()));
  58   ReportError(message, be_noisy);
  59   FOR_EACH_OBSERVER(Observer,
  60                     observers_,
  61                     OnLoadFailure(browser_context, extension_path, error));
  62 }
  63
  64 void ExtensionErrorReporter::ReportError(const base::string16& message,
  65                                          bool be_noisy) {
  66   // NOTE: There won't be a ui_loop_ in the unit test environment.
  67   if (ui_loop_) {
  68     CHECK(base::MessageLoop::current() == ui_loop_)
  69         << "ReportError can only be called from the UI thread.";
  70   }
  71
  72   errors_.push_back(message);
  73
  74   // TODO(aa): Print the error message out somewhere better. I think we are
  75   // going to need some sort of 'extension inspector'.
  76   LOG(WARNING) << "Extension error: " << message;
  77
  78   if (enable_noisy_errors_ && be_noisy) {
  79     chrome::ShowMessageBox(NULL,
  80                            base::ASCIIToUTF16("Extension error"),
  81                            message,
  82                            chrome::MESSAGE_BOX_TYPE_WARNING);
  83   }
  84 }
  85
  86 const std::vector<base::string16>* ExtensionErrorReporter::GetErrors() {
  87   return &errors_;
  88 }
  89
  90 void ExtensionErrorReporter::ClearErrors() {
  91   errors_.clear();
  92 }
  93
  94 void ExtensionErrorReporter::AddObserver(Observer* observer) {
  95   observers_.AddObserver(observer);
  96 }
  97
  98 void ExtensionErrorReporter::RemoveObserver(Observer* observer) {
  99   observers_.RemoveObserver(observer);
 100 }