blob: 2f4141f885eeae181df0e855c2764dfff3d6de14 [file] [log] [blame]
// Copyright 2015 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 "chrome/browser/tracing/chrome_tracing_delegate.h"
#include <string>
#include <utility>
#include <vector>
#include "base/strings/string_piece.h"
#include "base/time/time.h"
#include "base/values.h"
#include "build/build_config.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/tracing/crash_service_uploader.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_otr_state.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/trace_event_args_whitelist.h"
#include "components/metrics/metrics_pref_names.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/pref_service.h"
#include "components/variations/active_field_trials.h"
#include "components/version_info/version_info.h"
#include "content/public/browser/background_tracing_config.h"
#include "content/public/browser/browser_thread.h"
#if defined(OS_ANDROID)
#include "chrome/browser/crash_upload_list/crash_upload_list_android.h"
#include "chrome/browser/ui/android/tab_model/tab_model.h"
#include "chrome/browser/ui/android/tab_model/tab_model_list.h"
#endif
namespace {
const int kMinDaysUntilNextUpload = 7;
} // namespace
void ChromeTracingDelegate::RegisterPrefs(PrefRegistrySimple* registry) {
registry->RegisterInt64Pref(prefs::kBackgroundTracingLastUpload, 0);
}
ChromeTracingDelegate::ChromeTracingDelegate() : incognito_launched_(false) {
CHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
#if !defined(OS_ANDROID)
BrowserList::AddObserver(this);
#else
TabModelList::AddObserver(this);
#endif
}
ChromeTracingDelegate::~ChromeTracingDelegate() {
CHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
#if !defined(OS_ANDROID)
BrowserList::RemoveObserver(this);
#else
TabModelList::RemoveObserver(this);
#endif
}
#if defined(OS_ANDROID)
void ChromeTracingDelegate::OnTabModelAdded() {
for (TabModelList::const_iterator i = TabModelList::begin();
i != TabModelList::end(); i++) {
if ((*i)->IsOffTheRecord())
incognito_launched_ = true;
}
}
void ChromeTracingDelegate::OnTabModelRemoved() {}
#else
void ChromeTracingDelegate::OnBrowserAdded(Browser* browser) {
if (browser->profile()->IsOffTheRecord())
incognito_launched_ = true;
}
#endif // defined(OS_ANDROID)
std::unique_ptr<content::TraceUploader> ChromeTracingDelegate::GetTraceUploader(
scoped_refptr<network::SharedURLLoaderFactory> factory) {
return std::unique_ptr<content::TraceUploader>(
new TraceCrashServiceUploader(std::move(factory)));
}
namespace {
enum PermitMissingProfile { PROFILE_REQUIRED, PROFILE_NOT_REQUIRED };
Profile* GetProfile() {
ProfileManager* profile_manager = g_browser_process->profile_manager();
if (!profile_manager)
return nullptr;
return profile_manager->GetProfileByPath(
profile_manager->GetLastUsedProfileDir(profile_manager->user_data_dir()));
}
bool ProfileAllowsScenario(const content::BackgroundTracingConfig& config,
PermitMissingProfile profile_permission) {
// If the profile hasn't loaded or been created yet, we allow the scenario
// to start up, but not be finalized.
Profile* profile = GetProfile();
if (!profile)
return profile_permission != PROFILE_REQUIRED;
// Safeguard, in case background tracing is responsible for a crash on
// startup.
#if !defined(OS_ANDROID)
if (profile->GetLastSessionExitType() == Profile::EXIT_CRASHED)
return false;
#else
// If the metrics haven't loaded, we allow the scenario to start up, but not
// be finalized.
if (!CrashUploadListAndroid::BrowserCrashMetricsInitialized())
return profile_permission != PROFILE_REQUIRED;
if (CrashUploadListAndroid::DidBrowserCrashRecently())
return false;
#endif
PrefService* local_state = g_browser_process->local_state();
DCHECK(local_state);
#if !defined(OS_CHROMEOS) && defined(OFFICIAL_BUILD)
if (!local_state->GetBoolean(metrics::prefs::kMetricsReportingEnabled))
return false;
#endif // !OS_CHROMEOS && OFFICIAL_BUILD
if (config.tracing_mode() == content::BackgroundTracingConfig::PREEMPTIVE) {
const base::Time last_upload_time = base::Time::FromInternalValue(
local_state->GetInt64(prefs::kBackgroundTracingLastUpload));
if (!last_upload_time.is_null()) {
base::Time computed_next_allowed_time =
last_upload_time + base::TimeDelta::FromDays(kMinDaysUntilNextUpload);
if (computed_next_allowed_time > base::Time::Now()) {
return false;
}
}
}
return true;
}
} // namespace
bool ChromeTracingDelegate::IsAllowedToBeginBackgroundScenario(
const content::BackgroundTracingConfig& config,
bool requires_anonymized_data) {
#if defined(OS_ANDROID)
// TODO(oysteine): Support preemptive mode safely in Android.
if (config.tracing_mode() == content::BackgroundTracingConfig::PREEMPTIVE)
return false;
#endif
if (!ProfileAllowsScenario(config, PROFILE_NOT_REQUIRED))
return false;
if (requires_anonymized_data && chrome::IsIncognitoSessionActive())
return false;
return true;
}
bool ChromeTracingDelegate::IsAllowedToEndBackgroundScenario(
const content::BackgroundTracingConfig& config,
bool requires_anonymized_data) {
if (requires_anonymized_data &&
(incognito_launched_ || chrome::IsIncognitoSessionActive())) {
return false;
}
if (!ProfileAllowsScenario(config, PROFILE_REQUIRED))
return false;
if (config.tracing_mode() == content::BackgroundTracingConfig::PREEMPTIVE) {
PrefService* local_state = g_browser_process->local_state();
DCHECK(local_state);
local_state->SetInt64(prefs::kBackgroundTracingLastUpload,
base::Time::Now().ToInternalValue());
// We make sure we've persisted the value in case finalizing the tracing
// causes a crash.
local_state->CommitPendingWrite();
}
return true;
}
bool ChromeTracingDelegate::IsProfileLoaded() {
return GetProfile() != nullptr;
}
std::unique_ptr<base::DictionaryValue>
ChromeTracingDelegate::GenerateMetadataDict() {
auto metadata_dict = std::make_unique<base::DictionaryValue>();
std::vector<std::string> variations;
variations::GetFieldTrialActiveGroupIdsAsStrings(base::StringPiece(),
&variations);
std::unique_ptr<base::ListValue> variations_list(new base::ListValue());
for (const auto& it : variations)
variations_list->AppendString(it);
metadata_dict->Set("field-trials", std::move(variations_list));
metadata_dict->SetString("revision", version_info::GetLastChange());
return metadata_dict;
}
content::MetadataFilterPredicate
ChromeTracingDelegate::GetMetadataFilterPredicate() {
return base::Bind(&IsMetadataWhitelisted);
}