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// 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 "base/prefs/pref_registry_simple.h"
#include "base/prefs/pref_service.h"
#include "base/time/time.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 "content/public/browser/background_tracing_config.h"
#include "content/public/browser/browser_thread.h"
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));
BrowserList::AddObserver(this);
}
ChromeTracingDelegate::~ChromeTracingDelegate() {
CHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
BrowserList::RemoveObserver(this);
}
void ChromeTracingDelegate::OnBrowserAdded(Browser* browser) {
if (browser->profile()->IsOffTheRecord())
incognito_launched_ = true;
}
scoped_ptr<content::TraceUploader> ChromeTracingDelegate::GetTraceUploader(
net::URLRequestContextGetter* request_context) {
return scoped_ptr<content::TraceUploader>(
new TraceCrashServiceUploader(request_context));
}
bool ChromeTracingDelegate::IsAllowedToBeginBackgroundScenario(
const content::BackgroundTracingConfig& config,
bool requires_anonymized_data) {
Profile* profile = g_browser_process->profile_manager()
->GetLastUsedProfile()
->GetOriginalProfile();
DCHECK(profile);
// Safeguard, in case background tracing is responsible for a crash on
// startup.
if (profile->GetLastSessionExitType() == Profile::EXIT_CRASHED)
return false;
if (requires_anonymized_data && chrome::IsOffTheRecordSessionActive())
return false;
if (config.tracing_mode() == content::BackgroundTracingConfig::PREEMPTIVE) {
PrefService* local_state = g_browser_process->local_state();
DCHECK(local_state);
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;
}
bool ChromeTracingDelegate::IsAllowedToEndBackgroundScenario(
const content::BackgroundTracingConfig& config,
bool requires_anonymized_data) {
if (requires_anonymized_data && incognito_launched_)
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;
}
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