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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/updater/crash_client.h"
#include <optional>
#include <vector>
#include "base/check.h"
#include "base/debug/dump_without_crashing.h"
#include "base/environment.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/logging.h"
#include "base/no_destructor.h"
#include "base/strings/string_util.h"
#include "build/build_config.h"
#include "chrome/updater/branded_constants.h"
#include "chrome/updater/tag.h"
#include "chrome/updater/updater_branding.h"
#include "chrome/updater/updater_scope.h"
#include "chrome/updater/usage_stats_permissions.h"
#include "chrome/updater/util/util.h"
#include "third_party/crashpad/crashpad/client/crash_report_database.h"
#include "third_party/crashpad/crashpad/client/crashpad_client.h"
#include "third_party/crashpad/crashpad/client/prune_crash_reports.h"
#include "third_party/crashpad/crashpad/client/settings.h"
#include "third_party/crashpad/crashpad/client/simulate_crash.h"
#if BUILDFLAG(IS_WIN)
#include <windows.h>
#include "base/win/wrapped_window_proc.h"
namespace {
int __cdecl HandleWinProcException(EXCEPTION_POINTERS* exception_pointers) {
crashpad::CrashpadClient::DumpAndCrash(exception_pointers);
return EXCEPTION_CONTINUE_SEARCH;
}
} // namespace
#endif // BUILDFLAG(IS_WIN)
namespace updater {
CrashClient::CrashClient() = default;
CrashClient::~CrashClient() = default;
CrashClient* CrashClient::GetInstance() {
static base::NoDestructor<CrashClient> crash_client;
return crash_client.get();
}
bool CrashClient::SetUploadsEnabled(bool enabled) {
return database_ ? database_->GetSettings()->SetUploadsEnabled(enabled)
: false;
}
bool CrashClient::InitializeDatabaseOnly(UpdaterScope updater_scope) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
const std::optional<base::FilePath> database_path =
EnsureCrashDatabasePath(updater_scope);
if (!database_path) {
LOG(ERROR) << "Failed to get the database path.";
return false;
}
database_ = crashpad::CrashReportDatabase::Initialize(*database_path);
if (!database_) {
LOG(ERROR) << "Failed to initialize Crashpad database.";
return false;
}
return true;
}
bool CrashClient::InitializeCrashReporting(UpdaterScope updater_scope) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
static bool initialized = false;
CHECK(!initialized);
initialized = true;
if (!InitializeDatabaseOnly(updater_scope)) {
return false;
}
base::debug::SetDumpWithoutCrashingFunction(
[] { CRASHPAD_SIMULATE_CRASH(); });
#if BUILDFLAG(IS_WIN)
// Catch exceptions thrown from a window procedure.
base::win::WinProcExceptionFilter exception_filter =
base::win::SetWinProcExceptionFilter(&HandleWinProcException);
LOG_IF(DFATAL, exception_filter) << "Exception filter already present";
#endif // BUILDFLAG(IS_WIN)
std::vector<crashpad::CrashReportDatabase::Report> reports_completed;
const crashpad::CrashReportDatabase::OperationStatus status_completed =
database_->GetCompletedReports(&reports_completed);
if (status_completed == crashpad::CrashReportDatabase::kNoError) {
VLOG(1) << "Found " << reports_completed.size()
<< " completed crash reports";
for (const auto& report : reports_completed) {
VLOG(3) << "Crash since last run: ID \"" << report.id << "\", created at "
<< report.creation_time << ", " << report.upload_attempts
<< " upload attempts, file path \"" << report.file_path
<< "\", unique ID \"" << report.uuid.ToString()
<< "\"; uploaded: " << (report.uploaded ? "yes" : "no");
}
} else {
LOG(ERROR) << "Failed to fetch completed crash reports: "
<< status_completed;
}
std::vector<crashpad::CrashReportDatabase::Report> reports_pending;
const crashpad::CrashReportDatabase::OperationStatus status_pending =
database_->GetPendingReports(&reports_pending);
if (status_pending == crashpad::CrashReportDatabase::kNoError) {
VLOG(1) << "Found " << reports_pending.size() << " pending crash reports";
for (const auto& report : reports_pending) {
VLOG(1) << "Crash since last run: (pending), created at "
<< report.creation_time << ", " << report.upload_attempts
<< " upload attempts, file path \"" << report.file_path
<< "\", unique ID \"" << report.uuid.ToString() << "\"";
}
} else {
LOG(ERROR) << "Failed to fetch pending crash reports: " << status_pending;
}
std::optional<tagging::TagArgs> tag_args = GetTagArgs().tag_args;
const bool usage_stats_enabled =
(tag_args && tag_args->usage_stats_enable &&
*tag_args->usage_stats_enable) ||
base::Environment::Create()
->GetVar(kUsageStatsEnabled)
.value_or(std::string()) == kUsageStatsEnabledValueEnabled ||
AnyAppEnablesUsageStats(updater_scope);
if (usage_stats_enabled) {
crashpad::Settings* crashpad_settings = database_->GetSettings();
CHECK(crashpad_settings);
crashpad_settings->SetUploadsEnabled(true);
}
return true;
}
} // namespace updater
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