// 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.
//
// This code glues the RLZ library DLL with Chrome. It allows Chrome to work
// with or without the DLL being present. If the DLL is not present the
// functions do nothing and just return false.
#include "chrome/browser/rlz/rlz.h"
#include <algorithm>
#include "base/bind.h"
#include "base/command_line.h"
#include "base/debug/trace_event.h"
#include "base/message_loop/message_loop.h"
#include "base/prefs/pref_service.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/google/google_brand.h"
#include "chrome/browser/omnibox/omnibox_log.h"
#include "chrome/browser/prefs/session_startup_pref.h"
#include "chrome/browser/search_engines/template_url.h"
#include "chrome/browser/search_engines/template_url_service.h"
#include "chrome/browser/search_engines/template_url_service_factory.h"
#include "chrome/browser/ui/startup/startup_browser_creator.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
#include "components/google/core/browser/google_util.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/notification_service.h"
#include "net/http/http_util.h"
#if defined(OS_WIN)
#include "chrome/installer/util/google_update_settings.h"
#else
namespace GoogleUpdateSettings {
static bool GetLanguage(base::string16* language) {
// TODO(thakis): Implement.
NOTIMPLEMENTED();
return false;
}
// The referral program is defunct and not used. No need to implement these
// functions on non-Win platforms.
static bool GetReferral(base::string16* referral) {
return true;
}
static bool ClearReferral() {
return true;
}
} // namespace GoogleUpdateSettings
#endif
using content::BrowserThread;
using content::NavigationEntry;
namespace {
// Maximum and minimum delay for financial ping we would allow to be set through
// master preferences. Somewhat arbitrary, may need to be adjusted in future.
const base::TimeDelta kMaxInitDelay = base::TimeDelta::FromSeconds(200);
const base::TimeDelta kMinInitDelay = base::TimeDelta::FromSeconds(20);
bool IsBrandOrganic(const std::string& brand) {
return brand.empty() || google_brand::IsOrganic(brand);
}
void RecordProductEvents(bool first_run,
bool is_google_default_search,
bool is_google_homepage,
bool is_google_in_startpages,
bool already_ran,
bool omnibox_used,
bool homepage_used,
bool app_list_used) {
TRACE_EVENT0("RLZ", "RecordProductEvents");
// Record the installation of chrome. We call this all the time but the rlz
// lib should ignore all but the first one.
rlz_lib::RecordProductEvent(rlz_lib::CHROME,
RLZTracker::ChromeOmnibox(),
rlz_lib::INSTALL);
#if !defined(OS_IOS)
rlz_lib::RecordProductEvent(rlz_lib::CHROME,
RLZTracker::ChromeHomePage(),
rlz_lib::INSTALL);
rlz_lib::RecordProductEvent(rlz_lib::CHROME,
RLZTracker::ChromeAppList(),
rlz_lib::INSTALL);
#endif // !defined(OS_IOS)
if (!already_ran) {
// Do the initial event recording if is the first run or if we have an
// empty rlz which means we haven't got a chance to do it.
char omnibox_rlz[rlz_lib::kMaxRlzLength + 1];
if (!rlz_lib::GetAccessPointRlz(RLZTracker::ChromeOmnibox(), omnibox_rlz,
rlz_lib::kMaxRlzLength)) {
omnibox_rlz[0] = 0;
}
// Record if google is the initial search provider and/or home page.
if ((first_run || omnibox_rlz[0] == 0) && is_google_default_search) {
rlz_lib::RecordProductEvent(rlz_lib::CHROME,
RLZTracker::ChromeOmnibox(),
rlz_lib::SET_TO_GOOGLE);
}
#if !defined(OS_IOS)
char homepage_rlz[rlz_lib::kMaxRlzLength + 1];
if (!rlz_lib::GetAccessPointRlz(RLZTracker::ChromeHomePage(), homepage_rlz,
rlz_lib::kMaxRlzLength)) {
homepage_rlz[0] = 0;
}
if ((first_run || homepage_rlz[0] == 0) &&
(is_google_homepage || is_google_in_startpages)) {
rlz_lib::RecordProductEvent(rlz_lib::CHROME,
RLZTracker::ChromeHomePage(),
rlz_lib::SET_TO_GOOGLE);
}
char app_list_rlz[rlz_lib::kMaxRlzLength + 1];
if (!rlz_lib::GetAccessPointRlz(RLZTracker::ChromeAppList(), app_list_rlz,
rlz_lib::kMaxRlzLength)) {
app_list_rlz[0] = 0;
}
// Record if google is the initial search provider and/or home page.
if ((first_run || app_list_rlz[0] == 0) && is_google_default_search) {
rlz_lib::RecordProductEvent(rlz_lib::CHROME,
RLZTracker::ChromeAppList(),
rlz_lib::SET_TO_GOOGLE);
}
#endif // !defined(OS_IOS)
}
// Record first user interaction with the omnibox. We call this all the
// time but the rlz lib should ingore all but the first one.
if (omnibox_used) {
rlz_lib::RecordProductEvent(rlz_lib::CHROME,
RLZTracker::ChromeOmnibox(),
rlz_lib::FIRST_SEARCH);
}
#if !defined(OS_IOS)
// Record first user interaction with the home page. We call this all the
// time but the rlz lib should ingore all but the first one.
if (homepage_used || is_google_in_startpages) {
rlz_lib::RecordProductEvent(rlz_lib::CHROME,
RLZTracker::ChromeHomePage(),
rlz_lib::FIRST_SEARCH);
}
// Record first user interaction with the app list. We call this all the
// time but the rlz lib should ingore all but the first one.
if (app_list_used) {
rlz_lib::RecordProductEvent(rlz_lib::CHROME,
RLZTracker::ChromeAppList(),
rlz_lib::FIRST_SEARCH);
}
#endif // !defined(OS_IOS)
}
bool SendFinancialPing(const std::string& brand,
const base::string16& lang,
const base::string16& referral) {
rlz_lib::AccessPoint points[] = {RLZTracker::ChromeOmnibox(),
#if !defined(OS_IOS)
RLZTracker::ChromeHomePage(),
RLZTracker::ChromeAppList(),
#endif
rlz_lib::NO_ACCESS_POINT};
std::string lang_ascii(base::UTF16ToASCII(lang));
std::string referral_ascii(base::UTF16ToASCII(referral));
std::string product_signature;
#if defined(OS_CHROMEOS)
product_signature = "chromeos";
#else
product_signature = "chrome";
#endif
return rlz_lib::SendFinancialPing(rlz_lib::CHROME, points,
product_signature.c_str(),
brand.c_str(), referral_ascii.c_str(),
lang_ascii.c_str(), false, true);
}
} // namespace
RLZTracker* RLZTracker::tracker_ = NULL;
// static
RLZTracker* RLZTracker::GetInstance() {
return tracker_ ? tracker_ : Singleton<RLZTracker>::get();
}
RLZTracker::RLZTracker()
: first_run_(false),
send_ping_immediately_(false),
is_google_default_search_(false),
is_google_homepage_(false),
is_google_in_startpages_(false),
worker_pool_token_(BrowserThread::GetBlockingPool()->GetSequenceToken()),
already_ran_(false),
omnibox_used_(false),
homepage_used_(false),
app_list_used_(false),
min_init_delay_(kMinInitDelay) {
}
RLZTracker::~RLZTracker() {
}
// static
bool RLZTracker::InitRlzDelayed(bool first_run,
bool send_ping_immediately,
base::TimeDelta delay,
bool is_google_default_search,
bool is_google_homepage,
bool is_google_in_startpages) {
return GetInstance()->Init(first_run, send_ping_immediately, delay,
is_google_default_search, is_google_homepage,
is_google_in_startpages);
}
// static
bool RLZTracker::InitRlzFromProfileDelayed(Profile* profile,
bool first_run,
bool send_ping_immediately,
base::TimeDelta delay) {
bool is_google_default_search = false;
TemplateURLService* template_url_service =
TemplateURLServiceFactory::GetForProfile(profile);
if (template_url_service) {
const TemplateURL* url_template =
template_url_service->GetDefaultSearchProvider();
is_google_default_search =
url_template && url_template->url_ref().HasGoogleBaseURLs(
template_url_service->search_terms_data());
}
PrefService* pref_service = profile->GetPrefs();
bool is_google_homepage = google_util::IsGoogleHomePageUrl(
GURL(pref_service->GetString(prefs::kHomePage)));
bool is_google_in_startpages = false;
#if !defined(OS_IOS)
// iOS does not have a notion of startpages.
SessionStartupPref session_startup_prefs =
StartupBrowserCreator::GetSessionStartupPref(
*CommandLine::ForCurrentProcess(), profile);
if (session_startup_prefs.type == SessionStartupPref::URLS) {
is_google_in_startpages =
std::count_if(session_startup_prefs.urls.begin(),
session_startup_prefs.urls.end(),
google_util::IsGoogleHomePageUrl) > 0;
}
#endif
if (!InitRlzDelayed(first_run, send_ping_immediately, delay,
is_google_default_search, is_google_homepage,
is_google_in_startpages)) {
return false;
}
#if !defined(OS_IOS)
// Prime the RLZ cache for the home page access point so that its avaiable
// for the startup page if needed (i.e., when the startup page is set to
// the home page).
GetAccessPointRlz(ChromeHomePage(), NULL);
#endif // !defined(OS_IOS)
return true;
}
bool RLZTracker::Init(bool first_run,
bool send_ping_immediately,
base::TimeDelta delay,
bool is_google_default_search,
bool is_google_homepage,
bool is_google_in_startpages) {
first_run_ = first_run;
is_google_default_search_ = is_google_default_search;
is_google_homepage_ = is_google_homepage;
is_google_in_startpages_ = is_google_in_startpages;
send_ping_immediately_ = send_ping_immediately;
// Enable zero delays for testing.
if (CommandLine::ForCurrentProcess()->HasSwitch(::switches::kTestType))
EnableZeroDelayForTesting();
delay = std::min(kMaxInitDelay, std::max(min_init_delay_, delay));
if (google_brand::GetBrand(&brand_) && !IsBrandOrganic(brand_)) {
// Register for notifications from the omnibox so that we can record when
// the user performs a first search.
registrar_.Add(this, chrome::NOTIFICATION_OMNIBOX_OPENED_URL,
content::NotificationService::AllSources());
#if !defined(OS_IOS)
// Register for notifications from navigations, to see if the user has used
// the home page.
registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
content::NotificationService::AllSources());
#endif // !defined(OS_IOS)
}
google_brand::GetReactivationBrand(&reactivation_brand_);
net::URLRequestContextGetter* context_getter =
g_browser_process->system_request_context();
// Could be NULL; don't run if so. RLZ will try again next restart.
if (context_getter) {
rlz_lib::SetURLRequestContext(context_getter);
ScheduleDelayedInit(delay);
}
return true;
}
void RLZTracker::ScheduleDelayedInit(base::TimeDelta delay) {
// The RLZTracker is a singleton object that outlives any runnable tasks
// that will be queued up.
BrowserThread::GetBlockingPool()->PostDelayedSequencedWorkerTask(
worker_pool_token_,
FROM_HERE,
base::Bind(&RLZTracker::DelayedInit, base::Unretained(this)),
delay);
}
void RLZTracker::DelayedInit() {
bool schedule_ping = false;
// For organic brandcodes do not use rlz at all. Empty brandcode usually
// means a chromium install. This is ok.
if (!IsBrandOrganic(brand_)) {
RecordProductEvents(first_run_, is_google_default_search_,
is_google_homepage_, is_google_in_startpages_,
already_ran_, omnibox_used_, homepage_used_,
app_list_used_);
schedule_ping = true;
}
// If chrome has been reactivated, record the events for this brand
// as well.
if (!IsBrandOrganic(reactivation_brand_)) {
rlz_lib::SupplementaryBranding branding(reactivation_brand_.c_str());
RecordProductEvents(first_run_, is_google_default_search_,
is_google_homepage_, is_google_in_startpages_,
already_ran_, omnibox_used_, homepage_used_,
app_list_used_);
schedule_ping = true;
}
already_ran_ = true;
if (schedule_ping)
ScheduleFinancialPing();
}
void RLZTracker::ScheduleFinancialPing() {
BrowserThread::GetBlockingPool()->PostSequencedWorkerTaskWithShutdownBehavior(
worker_pool_token_,
FROM_HERE,
base::Bind(&RLZTracker::PingNowImpl, base::Unretained(this)),
base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
}
void RLZTracker::PingNowImpl() {
TRACE_EVENT0("RLZ", "RLZTracker::PingNowImpl");
base::string16 lang;
GoogleUpdateSettings::GetLanguage(&lang);
if (lang.empty())
lang = base::ASCIIToUTF16("en");
base::string16 referral;
GoogleUpdateSettings::GetReferral(&referral);
if (!IsBrandOrganic(brand_) && SendFinancialPing(brand_, lang, referral)) {
GoogleUpdateSettings::ClearReferral();
{
base::AutoLock lock(cache_lock_);
rlz_cache_.clear();
}
// Prime the RLZ cache for the access points we are interested in.
GetAccessPointRlz(RLZTracker::ChromeOmnibox(), NULL);
#if !defined(OS_IOS)
GetAccessPointRlz(RLZTracker::ChromeHomePage(), NULL);
GetAccessPointRlz(RLZTracker::ChromeAppList(), NULL);
#endif // !defined(OS_IOS)
}
if (!IsBrandOrganic(reactivation_brand_)) {
rlz_lib::SupplementaryBranding branding(reactivation_brand_.c_str());
SendFinancialPing(reactivation_brand_, lang, referral);
}
}
bool RLZTracker::SendFinancialPing(const std::string& brand,
const base::string16& lang,
const base::string16& referral) {
return ::SendFinancialPing(brand, lang, referral);
}
void RLZTracker::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
switch (type) {
case chrome::NOTIFICATION_OMNIBOX_OPENED_URL:
// In M-36, we made NOTIFICATION_OMNIBOX_OPENED_URL fire more often than
// it did previously. The RLZ folks want RLZ's "first search" detection
// to remain as unaffected as possible by this change. This test is
// there to keep the old behavior.
if (!content::Details<OmniboxLog>(details).ptr()->is_popup_open)
break;
RecordFirstSearch(ChromeOmnibox());
registrar_.Remove(this, chrome::NOTIFICATION_OMNIBOX_OPENED_URL,
content::NotificationService::AllSources());
break;
#if !defined(OS_IOS)
case content::NOTIFICATION_NAV_ENTRY_PENDING: {
const NavigationEntry* entry =
content::Details<content::NavigationEntry>(details).ptr();
if (entry != NULL &&
((entry->GetTransitionType() &
content::PAGE_TRANSITION_HOME_PAGE) != 0)) {
RecordFirstSearch(ChromeHomePage());
registrar_.Remove(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
content::NotificationService::AllSources());
}
break;
}
#endif // !defined(OS_IOS)
default:
NOTREACHED();
break;
}
}
// static
bool RLZTracker::RecordProductEvent(rlz_lib::Product product,
rlz_lib::AccessPoint point,
rlz_lib::Event event_id) {
return GetInstance()->RecordProductEventImpl(product, point, event_id);
}
bool RLZTracker::RecordProductEventImpl(rlz_lib::Product product,
rlz_lib::AccessPoint point,
rlz_lib::Event event_id) {
// Make sure we don't access disk outside of the I/O thread.
// In such case we repost the task on the right thread and return error.
if (ScheduleRecordProductEvent(product, point, event_id))
return true;
bool ret = rlz_lib::RecordProductEvent(product, point, event_id);
// If chrome has been reactivated, record the event for this brand as well.
if (!reactivation_brand_.empty()) {
rlz_lib::SupplementaryBranding branding(reactivation_brand_.c_str());
ret &= rlz_lib::RecordProductEvent(product, point, event_id);
}
return ret;
}
bool RLZTracker::ScheduleRecordProductEvent(rlz_lib::Product product,
rlz_lib::AccessPoint point,
rlz_lib::Event event_id) {
if (!BrowserThread::CurrentlyOn(BrowserThread::UI))
return false;
BrowserThread::GetBlockingPool()->PostSequencedWorkerTaskWithShutdownBehavior(
worker_pool_token_,
FROM_HERE,
base::Bind(base::IgnoreResult(&RLZTracker::RecordProductEvent),
product, point, event_id),
base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
return true;
}
void RLZTracker::RecordFirstSearch(rlz_lib::AccessPoint point) {
// Make sure we don't access disk outside of the I/O thread.
// In such case we repost the task on the right thread and return error.
if (ScheduleRecordFirstSearch(point))
return;
bool* record_used = GetAccessPointRecord(point);
// Try to record event now, else set the flag to try later when we
// attempt the ping.
if (!RecordProductEvent(rlz_lib::CHROME, point, rlz_lib::FIRST_SEARCH))
*record_used = true;
else if (send_ping_immediately_ && point == ChromeOmnibox())
ScheduleDelayedInit(base::TimeDelta());
}
bool RLZTracker::ScheduleRecordFirstSearch(rlz_lib::AccessPoint point) {
if (!BrowserThread::CurrentlyOn(BrowserThread::UI))
return false;
BrowserThread::GetBlockingPool()->PostSequencedWorkerTaskWithShutdownBehavior(
worker_pool_token_,
FROM_HERE,
base::Bind(&RLZTracker::RecordFirstSearch,
base::Unretained(this), point),
base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
return true;
}
bool* RLZTracker::GetAccessPointRecord(rlz_lib::AccessPoint point) {
if (point == ChromeOmnibox())
return &omnibox_used_;
#if !defined(OS_IOS)
if (point == ChromeHomePage())
return &homepage_used_;
if (point == ChromeAppList())
return &app_list_used_;
#endif // !defined(OS_IOS)
NOTREACHED();
return NULL;
}
// static
std::string RLZTracker::GetAccessPointHttpHeader(rlz_lib::AccessPoint point) {
TRACE_EVENT0("RLZ", "RLZTracker::GetAccessPointHttpHeader");
std::string extra_headers;
base::string16 rlz_string;
RLZTracker::GetAccessPointRlz(point, &rlz_string);
if (!rlz_string.empty()) {
net::HttpUtil::AppendHeaderIfMissing("X-Rlz-String",
base::UTF16ToUTF8(rlz_string),
&extra_headers);
}
return extra_headers;
}
// GetAccessPointRlz() caches RLZ strings for all access points. If we had
// a successful ping, then we update the cached value.
bool RLZTracker::GetAccessPointRlz(rlz_lib::AccessPoint point,
base::string16* rlz) {
TRACE_EVENT0("RLZ", "RLZTracker::GetAccessPointRlz");
return GetInstance()->GetAccessPointRlzImpl(point, rlz);
}
// GetAccessPointRlz() caches RLZ strings for all access points. If we had
// a successful ping, then we update the cached value.
bool RLZTracker::GetAccessPointRlzImpl(rlz_lib::AccessPoint point,
base::string16* rlz) {
// If the RLZ string for the specified access point is already cached,
// simply return its value.
{
base::AutoLock lock(cache_lock_);
if (rlz_cache_.find(point) != rlz_cache_.end()) {
if (rlz)
*rlz = rlz_cache_[point];
return true;
}
}
// Make sure we don't access disk outside of the I/O thread.
// In such case we repost the task on the right thread and return error.
if (ScheduleGetAccessPointRlz(point))
return false;
char str_rlz[rlz_lib::kMaxRlzLength + 1];
if (!rlz_lib::GetAccessPointRlz(point, str_rlz, rlz_lib::kMaxRlzLength))
return false;
base::string16 rlz_local(base::ASCIIToUTF16(std::string(str_rlz)));
if (rlz)
*rlz = rlz_local;
base::AutoLock lock(cache_lock_);
rlz_cache_[point] = rlz_local;
return true;
}
bool RLZTracker::ScheduleGetAccessPointRlz(rlz_lib::AccessPoint point) {
if (!BrowserThread::CurrentlyOn(BrowserThread::UI))
return false;
base::string16* not_used = NULL;
BrowserThread::GetBlockingPool()->PostSequencedWorkerTaskWithShutdownBehavior(
worker_pool_token_,
FROM_HERE,
base::Bind(base::IgnoreResult(&RLZTracker::GetAccessPointRlz), point,
not_used),
base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
return true;
}
#if defined(OS_CHROMEOS)
// static
void RLZTracker::ClearRlzState() {
GetInstance()->ClearRlzStateImpl();
}
void RLZTracker::ClearRlzStateImpl() {
if (ScheduleClearRlzState())
return;
rlz_lib::ClearAllProductEvents(rlz_lib::CHROME);
}
bool RLZTracker::ScheduleClearRlzState() {
if (!BrowserThread::CurrentlyOn(BrowserThread::UI))
return false;
BrowserThread::GetBlockingPool()->PostSequencedWorkerTaskWithShutdownBehavior(
worker_pool_token_,
FROM_HERE,
base::Bind(&RLZTracker::ClearRlzStateImpl,
base::Unretained(this)),
base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
return true;
}
#endif
// static
void RLZTracker::CleanupRlz() {
GetInstance()->rlz_cache_.clear();
GetInstance()->registrar_.RemoveAll();
rlz_lib::SetURLRequestContext(NULL);
}
// static
void RLZTracker::EnableZeroDelayForTesting() {
GetInstance()->min_init_delay_ = base::TimeDelta();
}
#if !defined(OS_IOS)
// static
void RLZTracker::RecordAppListSearch() {
GetInstance()->RecordFirstSearch(RLZTracker::ChromeAppList());
}
#endif