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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Implementation of wrapper around common crash reporting.

#include "base/file_util.h"
#include "base/logging.h"
#include "base/file_version_info.h"
#include "base/win_util.h"
#include "chrome/installer/util/google_update_settings.h"
#include "chrome/installer/util/install_util.h"
#include "chrome_frame/chrome_frame_reporting.h"
#include "chrome_frame/exception_barrier.h"
#include "chrome_frame/utils.h"

// Well known SID for the system principal.
const wchar_t kSystemPrincipalSid[] = L"S-1-5-18";
const wchar_t kChromePipeName[] = L"\\\\.\\pipe\\ChromeCrashServices";

// Returns the custom info structure based on the dll in parameter
google_breakpad::CustomClientInfo* GetCustomInfo(const wchar_t* dll_path) {
  std::wstring product;
  std::wstring version;
  if (version_info.get()) {
    version = version_info->product_version();
    product = version_info->product_short_name();

  if (version.empty())
    version = L"";

  if (product.empty())
    product = L"ChromeFrame";

  static google_breakpad::CustomInfoEntry ver_entry(L"ver", version.c_str());
  static google_breakpad::CustomInfoEntry prod_entry(L"prod", product.c_str());
  static google_breakpad::CustomInfoEntry plat_entry(L"plat", L"Win32");
  static google_breakpad::CustomInfoEntry type_entry(L"ptype", L"chrome_frame");
  static google_breakpad::CustomInfoEntry entries[] = {
      ver_entry, prod_entry, plat_entry, type_entry };
  static google_breakpad::CustomClientInfo custom_info = {
      entries, arraysize(entries) };
  return &custom_info;

extern "C" IMAGE_DOS_HEADER __ImageBase;

bool InitializeCrashReporting() {
  // In headless mode we want crashes to be reported back.
  bool always_take_dump = IsHeadlessMode();
  // We want to use the Google Update crash reporting. We need to check if the
  // user allows it first.
  if (!always_take_dump && !GoogleUpdateSettings::GetCollectStatsConsent())
      return true;

  // If we got here, we want to report crashes, so make sure all
  // ExceptionBarrierBase instances do so.

  // Get the alternate dump directory. We use the temp path.
  FilePath temp_directory;
  if (!file_util::GetTempDir(&temp_directory) || temp_directory.empty()) {
    return false;

  wchar_t dll_path[MAX_PATH * 2] = {0};
  GetModuleFileName(reinterpret_cast<HMODULE>(&__ImageBase), dll_path,

  if (always_take_dump) {
    return InitializeVectoredCrashReportingWithPipeName(true, kChromePipeName,
      temp_directory.value(), GetCustomInfo(dll_path));

  // Build the pipe name. It can be either:
  // System-wide install: "NamedPipe\GoogleCrashServices\S-1-5-18"
  // Per-user install: "NamedPipe\GoogleCrashServices<user SID>"
  std::wstring user_sid;
  if (InstallUtil::IsPerUserInstall(dll_path)) {
    if (!win_util::GetUserSidString(&user_sid)) {
      return false;
  } else {
    user_sid = kSystemPrincipalSid;

  return InitializeVectoredCrashReporting(false, user_sid.c_str(),
      temp_directory.value(), GetCustomInfo(dll_path));

bool ShutdownCrashReporting() {
  return ShutdownVectoredCrashReporting();

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