Turn components/crash into a layered component.

components/crash/tools/crash_service.cc

Index: components/crash/tools/crash_service.cc
diff --git a/components/crash/tools/crash_service.cc b/components/crash/tools/crash_service.cc
deleted file mode 100644
index f1536fc452bde91da642c0367dc13c671f145bc5..0000000000000000000000000000000000000000
--- a/components/crash/tools/crash_service.cc
+++ /dev/null
@@ -1,487 +0,0 @@
-// Copyright (c) 2012 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.
-
-#include "components/crash/tools/crash_service.h"
-
-#include <windows.h>
-
-#include <sddl.h>
-#include <fstream>
-#include <map>
-
-#include "base/command_line.h"
-#include "base/files/file_util.h"
-#include "base/logging.h"
-#include "base/win/windows_version.h"
-#include "breakpad/src/client/windows/crash_generation/client_info.h"
-#include "breakpad/src/client/windows/crash_generation/crash_generation_server.h"
-#include "breakpad/src/client/windows/sender/crash_report_sender.h"
-
-namespace breakpad {
-
-namespace {
-
-const wchar_t kTestPipeName[] = L"\\\\.\\pipe\\ChromeCrashServices";
-
-const wchar_t kCrashReportURL[] = L"https://clients2.google.com/cr/report";
-const wchar_t kCheckPointFile[] = L"crash_checkpoint.txt";
-
-typedef std::map<std::wstring, std::wstring> CrashMap;
-
-bool CustomInfoToMap(const google_breakpad::ClientInfo* client_info,
-                     const std::wstring& reporter_tag, CrashMap* map) {
-  google_breakpad::CustomClientInfo info = client_info->GetCustomInfo();
-
-  for (uintptr_t i = 0; i < info.count; ++i) {
-    (*map)[info.entries[i].name] = info.entries[i].value;
-  }
-
-  (*map)[L"rept"] = reporter_tag;
-
-  return !map->empty();
-}
-
-bool WriteCustomInfoToFile(const std::wstring& dump_path, const CrashMap& map) {
-  std::wstring file_path(dump_path);
-  size_t last_dot = file_path.rfind(L'.');
-  if (last_dot == std::wstring::npos)
-    return false;
-  file_path.resize(last_dot);
-  file_path += L".txt";
-
-  std::wofstream file(file_path.c_str(),
-      std::ios_base::out | std::ios_base::app | std::ios::binary);
-  if (!file.is_open())
-    return false;
-
-  CrashMap::const_iterator pos;
-  for (pos = map.begin(); pos != map.end(); ++pos) {
-    std::wstring line = pos->first;
-    line += L':';
-    line += pos->second;
-    line += L'\n';
-    file.write(line.c_str(), static_cast<std::streamsize>(line.length()));
-  }
-  return true;
-}
-
-// The window procedure task is to handle when a) the user logs off.
-// b) the system shuts down or c) when the user closes the window.
-LRESULT __stdcall CrashSvcWndProc(HWND hwnd, UINT message,
-                                  WPARAM wparam, LPARAM lparam) {
-  switch (message) {
-    case WM_CLOSE:
-    case WM_ENDSESSION:
-    case WM_DESTROY:
-      PostQuitMessage(0);
-      break;
-    default:
-      return DefWindowProc(hwnd, message, wparam, lparam);
-  }
-  return 0;
-}
-
-// This is the main and only application window.
-HWND g_top_window = NULL;
-
-bool CreateTopWindow(HINSTANCE instance, bool visible) {
-  WNDCLASSEXW wcx = {0};
-  wcx.cbSize = sizeof(wcx);
-  wcx.style = CS_HREDRAW | CS_VREDRAW;
-  wcx.lpfnWndProc = CrashSvcWndProc;
-  wcx.hInstance = instance;
-  wcx.lpszClassName = L"crash_svc_class";
-  ::RegisterClassExW(&wcx);
-  DWORD style = visible ? WS_POPUPWINDOW | WS_VISIBLE : WS_OVERLAPPED;
-
-  // The window size is zero but being a popup window still shows in the
-  // task bar and can be closed using the system menu or using task manager.
-  HWND window = CreateWindowExW(0, wcx.lpszClassName, L"crash service", style,
-                                CW_USEDEFAULT, CW_USEDEFAULT, 0, 0,
-                                NULL, NULL, instance, NULL);
-  if (!window)
-    return false;
-
-  ::UpdateWindow(window);
-  VLOG(1) << "window handle is " << window;
-  g_top_window = window;
-  return true;
-}
-
-// Simple helper class to keep the process alive until the current request
-// finishes.
-class ProcessingLock {
- public:
-  ProcessingLock() {
-    ::InterlockedIncrement(&op_count_);
-  }
-  ~ProcessingLock() {
-    ::InterlockedDecrement(&op_count_);
-  }
-  static bool IsWorking() {
-    return (op_count_ != 0);
-  }
- private:
-  static volatile LONG op_count_;
-};
-
-volatile LONG ProcessingLock::op_count_ = 0;
-
-// This structure contains the information that the worker thread needs to
-// send a crash dump to the server.
-struct DumpJobInfo {
-  DWORD pid;
-  CrashService* self;
-  CrashMap map;
-  std::wstring dump_path;
-
-  DumpJobInfo(DWORD process_id, CrashService* service,
-              const CrashMap& crash_map, const std::wstring& path)
-      : pid(process_id), self(service), map(crash_map), dump_path(path) {
-  }
-};
-
-}  // namespace
-
-// Command line switches:
-const char CrashService::kMaxReports[]        = "max-reports";
-const char CrashService::kNoWindow[]          = "no-window";
-const char CrashService::kReporterTag[]       = "reporter";
-const char CrashService::kDumpsDir[]          = "dumps-dir";
-const char CrashService::kPipeName[]          = "pipe-name";
-
-CrashService::CrashService()
-    : dumper_(NULL),
-      sender_(NULL),
-      requests_handled_(0),
-      requests_sent_(0),
-      clients_connected_(0),
-      clients_terminated_(0) {
-}
-
-CrashService::~CrashService() {
-  base::AutoLock lock(sending_);
-  delete dumper_;
-  delete sender_;
-}
-
-bool CrashService::Initialize(const base::FilePath& operating_dir,
-                              const base::FilePath& dumps_path) {
-  using google_breakpad::CrashReportSender;
-  using google_breakpad::CrashGenerationServer;
-
-  std::wstring pipe_name = kTestPipeName;
-  int max_reports = -1;
-
-  // The checkpoint file allows CrashReportSender to enforce the the maximum
-  // reports per day quota. Does not seem to serve any other purpose.
-  base::FilePath checkpoint_path = operating_dir.Append(kCheckPointFile);
-
-  base::CommandLine& cmd_line = *base::CommandLine::ForCurrentProcess();
-
-  base::FilePath dumps_path_to_use = dumps_path;
-
-  if (cmd_line.HasSwitch(kDumpsDir)) {
-    dumps_path_to_use =
-        base::FilePath(cmd_line.GetSwitchValueNative(kDumpsDir));
-  }
-
-  // We can override the send reports quota with a command line switch.
-  if (cmd_line.HasSwitch(kMaxReports))
-    max_reports = _wtoi(cmd_line.GetSwitchValueNative(kMaxReports).c_str());
-
-  // Allow the global pipe name to be overridden for better testability.
-  if (cmd_line.HasSwitch(kPipeName))
-    pipe_name = cmd_line.GetSwitchValueNative(kPipeName);
-
-#ifdef _WIN64
-  pipe_name += L"-x64";
-#endif
-
-  if (max_reports > 0) {
-    // Create the http sender object.
-    sender_ = new CrashReportSender(checkpoint_path.value());
-    sender_->set_max_reports_per_day(max_reports);
-  }
-
-  SECURITY_ATTRIBUTES security_attributes = {0};
-  SECURITY_ATTRIBUTES* security_attributes_actual = NULL;
-
-  if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
-    SECURITY_DESCRIPTOR* security_descriptor =
-        reinterpret_cast<SECURITY_DESCRIPTOR*>(
-            GetSecurityDescriptorForLowIntegrity());
-    DCHECK(security_descriptor != NULL);
-
-    security_attributes.nLength = sizeof(security_attributes);
-    security_attributes.lpSecurityDescriptor = security_descriptor;
-    security_attributes.bInheritHandle = FALSE;
-
-    security_attributes_actual = &security_attributes;
-  }
-
-  // Create the OOP crash generator object.
-  dumper_ = new CrashGenerationServer(pipe_name, security_attributes_actual,
-                                      &CrashService::OnClientConnected, this,
-                                      &CrashService::OnClientDumpRequest, this,
-                                      &CrashService::OnClientExited, this,
-                                      NULL, NULL,
-                                      true, &dumps_path_to_use.value());
-
-  if (!dumper_) {
-    LOG(ERROR) << "could not create dumper";
-    if (security_attributes.lpSecurityDescriptor)
-      LocalFree(security_attributes.lpSecurityDescriptor);
-    return false;
-  }
-
-  if (!CreateTopWindow(::GetModuleHandleW(NULL),
-                       !cmd_line.HasSwitch(kNoWindow))) {
-    LOG(ERROR) << "could not create window";
-    if (security_attributes.lpSecurityDescriptor)
-      LocalFree(security_attributes.lpSecurityDescriptor);
-    return false;
-  }
-
-  reporter_tag_ = L"crash svc";
-  if (cmd_line.HasSwitch(kReporterTag))
-    reporter_tag_ = cmd_line.GetSwitchValueNative(kReporterTag);
-
-  // Log basic information.
-  VLOG(1) << "pipe name is " << pipe_name
-          << "\ndumps at " << dumps_path_to_use.value();
-
-  if (sender_) {
-    VLOG(1) << "checkpoint is " << checkpoint_path.value()
-            << "\nserver is " << kCrashReportURL
-            << "\nmaximum " << sender_->max_reports_per_day() << " reports/day"
-            << "\nreporter is " << reporter_tag_;
-  }
-  // Start servicing clients.
-  if (!dumper_->Start()) {
-    LOG(ERROR) << "could not start dumper";
-    if (security_attributes.lpSecurityDescriptor)
-      LocalFree(security_attributes.lpSecurityDescriptor);
-    return false;
-  }
-
-  if (security_attributes.lpSecurityDescriptor)
-    LocalFree(security_attributes.lpSecurityDescriptor);
-
-  // This is throwaway code. We don't need to sync with the browser process
-  // once Google Update is updated to a version supporting OOP crash handling.
-  // Create or open an event to signal the browser process that the crash
-  // service is initialized.
-  HANDLE running_event =
-      ::CreateEventW(NULL, TRUE, TRUE, L"g_chrome_crash_svc");
-  // If the browser already had the event open, the CreateEvent call did not
-  // signal it. We need to do it manually.
-  ::SetEvent(running_event);
-
-  return true;
-}
-
-void CrashService::OnClientConnected(void* context,
-    const google_breakpad::ClientInfo* client_info) {
-  ProcessingLock lock;
-  VLOG(1) << "client start. pid = " << client_info->pid();
-  CrashService* self = static_cast<CrashService*>(context);
-  ::InterlockedIncrement(&self->clients_connected_);
-}
-
-void CrashService::OnClientExited(void* context,
-    const google_breakpad::ClientInfo* client_info) {
-  ProcessingLock lock;
-  VLOG(1) << "client end. pid = " << client_info->pid();
-  CrashService* self = static_cast<CrashService*>(context);
-  ::InterlockedIncrement(&self->clients_terminated_);
-
-  if (!self->sender_)
-    return;
-
-  // When we are instructed to send reports we need to exit if there are
-  // no more clients to service. The next client that runs will start us.
-  // Only chrome.exe starts crash_service with a non-zero max_reports.
-  if (self->clients_connected_ > self->clients_terminated_)
-    return;
-  if (self->sender_->max_reports_per_day() > 0) {
-    // Wait for the other thread to send crashes, if applicable. The sender
-    // thread takes the sending_ lock, so the sleep is just to give it a
-    // chance to start.
-    ::Sleep(1000);
-    base::AutoLock lock(self->sending_);
-    // Some people can restart chrome very fast, check again if we have
-    // a new client before exiting for real.
-    if (self->clients_connected_ == self->clients_terminated_) {
-      VLOG(1) << "zero clients. exiting";
-      ::PostMessage(g_top_window, WM_CLOSE, 0, 0);
-    }
-  }
-}
-
-void CrashService::OnClientDumpRequest(void* context,
-    const google_breakpad::ClientInfo* client_info,
-    const std::wstring* file_path) {
-  ProcessingLock lock;
-
-  if (!file_path) {
-    LOG(ERROR) << "dump with no file path";
-    return;
-  }
-  if (!client_info) {
-    LOG(ERROR) << "dump with no client info";
-    return;
-  }
-
-  CrashService* self = static_cast<CrashService*>(context);
-  if (!self) {
-    LOG(ERROR) << "dump with no context";
-    return;
-  }
-
-  CrashMap map;
-  CustomInfoToMap(client_info, self->reporter_tag_, &map);
-
-  // Move dump file to the directory under client breakpad dump location.
-  base::FilePath dump_location = base::FilePath(*file_path);
-  CrashMap::const_iterator it = map.find(L"breakpad-dump-location");
-  if (it != map.end()) {
-    base::FilePath alternate_dump_location = base::FilePath(it->second);
-    base::CreateDirectoryW(alternate_dump_location);
-    alternate_dump_location = alternate_dump_location.Append(
-        dump_location.BaseName());
-    base::Move(dump_location, alternate_dump_location);
-    dump_location = alternate_dump_location;
-  }
-
-  DWORD pid = client_info->pid();
-  VLOG(1) << "dump for pid = " << pid << " is " << dump_location.value();
-
-  if (!WriteCustomInfoToFile(dump_location.value(), map)) {
-    LOG(ERROR) << "could not write custom info file";
-  }
-
-  if (!self->sender_)
-    return;
-
-  // Send the crash dump using a worker thread. This operation has retry
-  // logic in case there is no internet connection at the time.
-  DumpJobInfo* dump_job = new DumpJobInfo(pid, self, map,
-                                          dump_location.value());
-  if (!::QueueUserWorkItem(&CrashService::AsyncSendDump,
-                           dump_job, WT_EXECUTELONGFUNCTION)) {
-    LOG(ERROR) << "could not queue job";
-  }
-}
-
-// We are going to try sending the report several times. If we can't send,
-// we sleep from one minute to several hours depending on the retry round.
-unsigned long CrashService::AsyncSendDump(void* context) {
-  if (!context)
-    return 0;
-
-  DumpJobInfo* info = static_cast<DumpJobInfo*>(context);
-
-  std::wstring report_id = L"<unsent>";
-
-  const DWORD kOneMinute = 60*1000;
-  const DWORD kOneHour = 60*kOneMinute;
-
-  const DWORD kSleepSchedule[] = {
-      24*kOneHour,
-      8*kOneHour,
-      4*kOneHour,
-      kOneHour,
-      15*kOneMinute,
-      0};
-
-  int retry_round = arraysize(kSleepSchedule) - 1;
-
-  do {
-    ::Sleep(kSleepSchedule[retry_round]);
-    {
-      // Take the server lock while sending. This also prevent early
-      // termination of the service object.
-      base::AutoLock lock(info->self->sending_);
-      VLOG(1) << "trying to send report for pid = " << info->pid;
-      google_breakpad::ReportResult send_result
-          = info->self->sender_->SendCrashReport(kCrashReportURL, info->map,
-                                                 info->dump_path, &report_id);
-      switch (send_result) {
-        case google_breakpad::RESULT_FAILED:
-          report_id = L"<network issue>";
-          break;
-        case google_breakpad::RESULT_REJECTED:
-          report_id = L"<rejected>";
-          ++info->self->requests_handled_;
-          retry_round = 0;
-          break;
-        case google_breakpad::RESULT_SUCCEEDED:
-          ++info->self->requests_sent_;
-          ++info->self->requests_handled_;
-          retry_round = 0;
-          break;
-        case google_breakpad::RESULT_THROTTLED:
-          report_id = L"<throttled>";
-          break;
-        default:
-          report_id = L"<unknown>";
-          break;
-      };
-    }
-
-    VLOG(1) << "dump for pid =" << info->pid << " crash2 id =" << report_id;
-    --retry_round;
-  } while (retry_round >= 0);
-
-  if (!::DeleteFileW(info->dump_path.c_str()))
-    LOG(WARNING) << "could not delete " << info->dump_path;
-
-  delete info;
-  return 0;
-}
-
-int CrashService::ProcessingLoop() {
-  MSG msg;
-  while (GetMessage(&msg, NULL, 0, 0)) {
-    TranslateMessage(&msg);
-    DispatchMessage(&msg);
-  }
-
-  VLOG(1) << "session ending..";
-  while (ProcessingLock::IsWorking()) {
-    ::Sleep(50);
-  }
-
-  VLOG(1) << "clients connected :" << clients_connected_
-          << "\nclients terminated :" << clients_terminated_
-          << "\ndumps serviced :" << requests_handled_
-          << "\ndumps reported :" << requests_sent_;
-
-  return static_cast<int>(msg.wParam);
-}
-
-PSECURITY_DESCRIPTOR CrashService::GetSecurityDescriptorForLowIntegrity() {
-  // Build the SDDL string for the label.
-  std::wstring sddl = L"S:(ML;;NW;;;S-1-16-4096)";
-
-  PSECURITY_DESCRIPTOR sec_desc = NULL;
-
-  PACL sacl = NULL;
-  BOOL sacl_present = FALSE;
-  BOOL sacl_defaulted = FALSE;
-
-  if (::ConvertStringSecurityDescriptorToSecurityDescriptorW(sddl.c_str(),
-                                                             SDDL_REVISION,
-                                                             &sec_desc, NULL)) {
-    if (::GetSecurityDescriptorSacl(sec_desc, &sacl_present, &sacl,
-                                    &sacl_defaulted)) {
-      return sec_desc;
-    }
-  }
-
-  return NULL;
-}
-
-}  // namespace breakpad