blob: 8ee2d07e5e7da8933adfc8526512a7a5869f4fd7 [file] [log] [blame]
// 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 "net/extras/sqlite/sqlite_persistent_cookie_store.h"
#include <map>
#include <memory>
#include <set>
#include "base/bind.h"
#include "base/callback.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/metrics/histogram_macros.h"
#include "base/profiler/scoped_tracker.h"
#include "base/sequenced_task_runner.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/synchronization/lock.h"
#include "base/threading/sequenced_worker_pool.h"
#include "base/time/time.h"
#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
#include "net/cookies/canonical_cookie.h"
#include "net/cookies/cookie_constants.h"
#include "net/cookies/cookie_util.h"
#include "net/extras/sqlite/cookie_crypto_delegate.h"
#include "sql/error_delegate_util.h"
#include "sql/meta_table.h"
#include "sql/statement.h"
#include "sql/transaction.h"
#include "url/gurl.h"
using base::Time;
namespace {
// The persistent cookie store is loaded into memory on eTLD at a time. This
// variable controls the delay between loading eTLDs, so as to not overload the
// CPU or I/O with these low priority requests immediately after start up.
#if defined(OS_IOS)
// TODO(ellyjones): This should be 200ms, but currently CookieStoreIOS is
// waiting for -FinishedLoadingCookies to be called after all eTLD cookies are
// loaded before making any network requests. Changing to 0ms for now.
// crbug.com/462593
const int kLoadDelayMilliseconds = 0;
#else
const int kLoadDelayMilliseconds = 0;
#endif
} // namespace
namespace net {
// This class is designed to be shared between any client thread and the
// background task runner. It batches operations and commits them on a timer.
//
// SQLitePersistentCookieStore::Load is called to load all cookies. It
// delegates to Backend::Load, which posts a Backend::LoadAndNotifyOnDBThread
// task to the background runner. This task calls Backend::ChainLoadCookies(),
// which repeatedly posts itself to the BG runner to load each eTLD+1's cookies
// in separate tasks. When this is complete, Backend::CompleteLoadOnIOThread is
// posted to the client runner, which notifies the caller of
// SQLitePersistentCookieStore::Load that the load is complete.
//
// If a priority load request is invoked via SQLitePersistentCookieStore::
// LoadCookiesForKey, it is delegated to Backend::LoadCookiesForKey, which posts
// Backend::LoadKeyAndNotifyOnDBThread to the BG runner. That routine loads just
// that single domain key (eTLD+1)'s cookies, and posts a Backend::
// CompleteLoadForKeyOnIOThread to the client runner to notify the caller of
// SQLitePersistentCookieStore::LoadCookiesForKey that that load is complete.
//
// Subsequent to loading, mutations may be queued by any thread using
// AddCookie, UpdateCookieAccessTime, and DeleteCookie. These are flushed to
// disk on the BG runner every 30 seconds, 512 operations, or call to Flush(),
// whichever occurs first.
class SQLitePersistentCookieStore::Backend
: public base::RefCountedThreadSafe<SQLitePersistentCookieStore::Backend> {
public:
Backend(
const base::FilePath& path,
const scoped_refptr<base::SequencedTaskRunner>& client_task_runner,
const scoped_refptr<base::SequencedTaskRunner>& background_task_runner,
bool restore_old_session_cookies,
CookieCryptoDelegate* crypto_delegate)
: path_(path),
num_pending_(0),
initialized_(false),
corruption_detected_(false),
restore_old_session_cookies_(restore_old_session_cookies),
num_cookies_read_(0),
client_task_runner_(client_task_runner),
background_task_runner_(background_task_runner),
num_priority_waiting_(0),
total_priority_requests_(0),
crypto_(crypto_delegate) {}
// Creates or loads the SQLite database.
void Load(const LoadedCallback& loaded_callback);
// Loads cookies for the domain key (eTLD+1).
void LoadCookiesForKey(const std::string& domain,
const LoadedCallback& loaded_callback);
// Steps through all results of |smt|, makes a cookie from each, and adds the
// cookie to |cookies|. This method also updates |num_cookies_read_|.
void MakeCookiesFromSQLStatement(std::vector<CanonicalCookie*>* cookies,
sql::Statement* statement);
// Batch a cookie addition.
void AddCookie(const CanonicalCookie& cc);
// Batch a cookie access time update.
void UpdateCookieAccessTime(const CanonicalCookie& cc);
// Batch a cookie deletion.
void DeleteCookie(const CanonicalCookie& cc);
// Commit pending operations as soon as possible.
void Flush(const base::Closure& callback);
// Commit any pending operations and close the database. This must be called
// before the object is destructed.
void Close(const base::Closure& callback);
// Post background delete of all cookies that match |cookies|.
void DeleteAllInList(const std::list<CookieOrigin>& cookies);
private:
friend class base::RefCountedThreadSafe<SQLitePersistentCookieStore::Backend>;
// You should call Close() before destructing this object.
~Backend() {
DCHECK(!db_.get()) << "Close should have already been called.";
DCHECK_EQ(0u, num_pending_);
DCHECK(pending_.empty());
for (CanonicalCookie* cookie : cookies_) {
delete cookie;
}
}
// Database upgrade statements.
bool EnsureDatabaseVersion();
class PendingOperation {
public:
enum OperationType {
COOKIE_ADD,
COOKIE_UPDATEACCESS,
COOKIE_DELETE,
};
PendingOperation(OperationType op, const CanonicalCookie& cc)
: op_(op), cc_(cc) {}
OperationType op() const { return op_; }
const CanonicalCookie& cc() const { return cc_; }
private:
OperationType op_;
CanonicalCookie cc_;
};
private:
// Creates or loads the SQLite database on background runner.
void LoadAndNotifyInBackground(const LoadedCallback& loaded_callback,
const base::Time& posted_at);
// Loads cookies for the domain key (eTLD+1) on background runner.
void LoadKeyAndNotifyInBackground(const std::string& domains,
const LoadedCallback& loaded_callback,
const base::Time& posted_at);
// Notifies the CookieMonster when loading completes for a specific domain key
// or for all domain keys. Triggers the callback and passes it all cookies
// that have been loaded from DB since last IO notification.
void Notify(const LoadedCallback& loaded_callback, bool load_success);
// Flushes (Commits) pending operations on the background runner, and invokes
// |callback| on the client thread when done.
void FlushAndNotifyInBackground(const base::Closure& callback);
// Sends notification when the entire store is loaded, and reports metrics
// for the total time to load and aggregated results from any priority loads
// that occurred.
void CompleteLoadInForeground(const LoadedCallback& loaded_callback,
bool load_success);
// Sends notification when a single priority load completes. Updates priority
// load metric data. The data is sent only after the final load completes.
void CompleteLoadForKeyInForeground(const LoadedCallback& loaded_callback,
bool load_success,
const base::Time& requested_at);
// Sends all metrics, including posting a ReportMetricsInBackground task.
// Called after all priority and regular loading is complete.
void ReportMetrics();
// Sends background-runner owned metrics (i.e., the combined duration of all
// BG-runner tasks).
void ReportMetricsInBackground();
// Initialize the data base.
bool InitializeDatabase();
// Loads cookies for the next domain key from the DB, then either reschedules
// itself or schedules the provided callback to run on the client runner (if
// all domains are loaded).
void ChainLoadCookies(const LoadedCallback& loaded_callback);
// Load all cookies for a set of domains/hosts
bool LoadCookiesForDomains(const std::set<std::string>& key);
// Batch a cookie operation (add or delete)
void BatchOperation(PendingOperation::OperationType op,
const CanonicalCookie& cc);
// Commit our pending operations to the database.
void Commit();
// Close() executed on the background runner.
void InternalBackgroundClose(const base::Closure& callback);
void DeleteSessionCookiesOnStartup();
void BackgroundDeleteAllInList(const std::list<CookieOrigin>& cookies);
void DatabaseErrorCallback(int error, sql::Statement* stmt);
void KillDatabase();
void PostBackgroundTask(const tracked_objects::Location& origin,
const base::Closure& task);
void PostClientTask(const tracked_objects::Location& origin,
const base::Closure& task);
// Shared code between the different load strategies to be used after all
// cookies have been loaded.
void FinishedLoadingCookies(const LoadedCallback& loaded_callback,
bool success);
const base::FilePath path_;
std::unique_ptr<sql::Connection> db_;
sql::MetaTable meta_table_;
typedef std::list<PendingOperation*> PendingOperationsList;
PendingOperationsList pending_;
PendingOperationsList::size_type num_pending_;
// Guard |cookies_|, |pending_|, |num_pending_|.
base::Lock lock_;
// Temporary buffer for cookies loaded from DB. Accumulates cookies to reduce
// the number of messages sent to the client runner. Sent back in response to
// individual load requests for domain keys or when all loading completes.
// Ownership of the cookies in this vector is transferred to the client in
// response to individual load requests or when all loading completes.
std::vector<CanonicalCookie*> cookies_;
// Map of domain keys(eTLD+1) to domains/hosts that are to be loaded from DB.
std::map<std::string, std::set<std::string>> keys_to_load_;
// Indicates if DB has been initialized.
bool initialized_;
// Indicates if the kill-database callback has been scheduled.
bool corruption_detected_;
// If false, we should filter out session cookies when reading the DB.
bool restore_old_session_cookies_;
// The cumulative time spent loading the cookies on the background runner.
// Incremented and reported from the background runner.
base::TimeDelta cookie_load_duration_;
// The total number of cookies read. Incremented and reported on the
// background runner.
int num_cookies_read_;
scoped_refptr<base::SequencedTaskRunner> client_task_runner_;
scoped_refptr<base::SequencedTaskRunner> background_task_runner_;
// Guards the following metrics-related properties (only accessed when
// starting/completing priority loads or completing the total load).
base::Lock metrics_lock_;
int num_priority_waiting_;
// The total number of priority requests.
int total_priority_requests_;
// The time when |num_priority_waiting_| incremented to 1.
base::Time current_priority_wait_start_;
// The cumulative duration of time when |num_priority_waiting_| was greater
// than 1.
base::TimeDelta priority_wait_duration_;
// Class with functions that do cryptographic operations (for protecting
// cookies stored persistently).
//
// Not owned.
CookieCryptoDelegate* crypto_;
DISALLOW_COPY_AND_ASSIGN(Backend);
};
namespace {
// Version number of the database.
//
// Version 9 adds a partial index to track non-persistent cookies.
// Non-persistent cookies sometimes need to be deleted on startup. There are
// frequently few or no non-persistent cookies, so the partial index allows the
// deletion to be sped up or skipped, without having to page in the DB.
//
// Version 8 adds "first-party only" cookies.
//
// Version 7 adds encrypted values. Old values will continue to be used but
// all new values written will be encrypted on selected operating systems. New
// records read by old clients will simply get an empty cookie value while old
// records read by new clients will continue to operate with the unencrypted
// version. New and old clients alike will always write/update records with
// what they support.
//
// Version 6 adds cookie priorities. This allows developers to influence the
// order in which cookies are evicted in order to meet domain cookie limits.
//
// Version 5 adds the columns has_expires and is_persistent, so that the
// database can store session cookies as well as persistent cookies. Databases
// of version 5 are incompatible with older versions of code. If a database of
// version 5 is read by older code, session cookies will be treated as normal
// cookies. Currently, these fields are written, but not read anymore.
//
// In version 4, we migrated the time epoch. If you open the DB with an older
// version on Mac or Linux, the times will look wonky, but the file will likely
// be usable. On Windows version 3 and 4 are the same.
//
// Version 3 updated the database to include the last access time, so we can
// expire them in decreasing order of use when we've reached the maximum
// number of cookies.
const int kCurrentVersionNumber = 9;
const int kCompatibleVersionNumber = 5;
// Possible values for the 'priority' column.
enum DBCookiePriority {
kCookiePriorityLow = 0,
kCookiePriorityMedium = 1,
kCookiePriorityHigh = 2,
};
DBCookiePriority CookiePriorityToDBCookiePriority(CookiePriority value) {
switch (value) {
case COOKIE_PRIORITY_LOW:
return kCookiePriorityLow;
case COOKIE_PRIORITY_MEDIUM:
return kCookiePriorityMedium;
case COOKIE_PRIORITY_HIGH:
return kCookiePriorityHigh;
}
NOTREACHED();
return kCookiePriorityMedium;
}
CookiePriority DBCookiePriorityToCookiePriority(DBCookiePriority value) {
switch (value) {
case kCookiePriorityLow:
return COOKIE_PRIORITY_LOW;
case kCookiePriorityMedium:
return COOKIE_PRIORITY_MEDIUM;
case kCookiePriorityHigh:
return COOKIE_PRIORITY_HIGH;
}
NOTREACHED();
return COOKIE_PRIORITY_DEFAULT;
}
// Possible values for the 'samesite' column
enum DBCookieSameSite {
kCookieSameSiteNoRestriction = 0,
kCookieSameSiteLax = 1,
kCookieSameSiteStrict = 2,
};
DBCookieSameSite CookieSameSiteToDBCookieSameSite(CookieSameSite value) {
switch (value) {
case CookieSameSite::NO_RESTRICTION:
return kCookieSameSiteNoRestriction;
case CookieSameSite::LAX_MODE:
return kCookieSameSiteLax;
case CookieSameSite::STRICT_MODE:
return kCookieSameSiteStrict;
}
NOTREACHED();
return kCookieSameSiteNoRestriction;
}
CookieSameSite DBCookieSameSiteToCookieSameSite(DBCookieSameSite value) {
switch (value) {
case kCookieSameSiteNoRestriction:
return CookieSameSite::NO_RESTRICTION;
case kCookieSameSiteLax:
return CookieSameSite::LAX_MODE;
case kCookieSameSiteStrict:
return CookieSameSite::STRICT_MODE;
}
NOTREACHED();
return CookieSameSite::DEFAULT_MODE;
}
// Increments a specified TimeDelta by the duration between this object's
// constructor and destructor. Not thread safe. Multiple instances may be
// created with the same delta instance as long as their lifetimes are nested.
// The shortest lived instances have no impact.
class IncrementTimeDelta {
public:
explicit IncrementTimeDelta(base::TimeDelta* delta)
: delta_(delta), original_value_(*delta), start_(base::Time::Now()) {}
~IncrementTimeDelta() {
*delta_ = original_value_ + base::Time::Now() - start_;
}
private:
base::TimeDelta* delta_;
base::TimeDelta original_value_;
base::Time start_;
DISALLOW_COPY_AND_ASSIGN(IncrementTimeDelta);
};
// Initializes the cookies table, returning true on success.
bool InitTable(sql::Connection* db) {
if (db->DoesTableExist("cookies"))
return true;
std::string stmt(base::StringPrintf(
"CREATE TABLE cookies ("
"creation_utc INTEGER NOT NULL UNIQUE PRIMARY KEY,"
"host_key TEXT NOT NULL,"
"name TEXT NOT NULL,"
"value TEXT NOT NULL,"
"path TEXT NOT NULL,"
"expires_utc INTEGER NOT NULL,"
"secure INTEGER NOT NULL,"
"httponly INTEGER NOT NULL,"
"last_access_utc INTEGER NOT NULL, "
"has_expires INTEGER NOT NULL DEFAULT 1, "
"persistent INTEGER NOT NULL DEFAULT 1,"
"priority INTEGER NOT NULL DEFAULT %d,"
"encrypted_value BLOB DEFAULT '',"
"firstpartyonly INTEGER NOT NULL DEFAULT %d)",
CookiePriorityToDBCookiePriority(COOKIE_PRIORITY_DEFAULT),
CookieSameSiteToDBCookieSameSite(CookieSameSite::DEFAULT_MODE)));
if (!db->Execute(stmt.c_str()))
return false;
if (!db->Execute("CREATE INDEX domain ON cookies(host_key)"))
return false;
#if defined(OS_IOS)
// iOS 8.1 and older doesn't support partial indices. iOS 8.2 supports
// partial indices.
if (!db->Execute("CREATE INDEX is_transient ON cookies(persistent)")) {
#else
if (!db->Execute(
"CREATE INDEX is_transient ON cookies(persistent) "
"where persistent != 1")) {
#endif
return false;
}
return true;
}
} // namespace
void SQLitePersistentCookieStore::Backend::Load(
const LoadedCallback& loaded_callback) {
PostBackgroundTask(FROM_HERE,
base::Bind(&Backend::LoadAndNotifyInBackground, this,
loaded_callback, base::Time::Now()));
}
void SQLitePersistentCookieStore::Backend::LoadCookiesForKey(
const std::string& key,
const LoadedCallback& loaded_callback) {
{
base::AutoLock locked(metrics_lock_);
if (num_priority_waiting_ == 0)
current_priority_wait_start_ = base::Time::Now();
num_priority_waiting_++;
total_priority_requests_++;
}
PostBackgroundTask(
FROM_HERE, base::Bind(&Backend::LoadKeyAndNotifyInBackground, this, key,
loaded_callback, base::Time::Now()));
}
void SQLitePersistentCookieStore::Backend::LoadAndNotifyInBackground(
const LoadedCallback& loaded_callback,
const base::Time& posted_at) {
DCHECK(background_task_runner_->RunsTasksOnCurrentThread());
IncrementTimeDelta increment(&cookie_load_duration_);
UMA_HISTOGRAM_CUSTOM_TIMES("Cookie.TimeLoadDBQueueWait",
base::Time::Now() - posted_at,
base::TimeDelta::FromMilliseconds(1),
base::TimeDelta::FromMinutes(1), 50);
if (!InitializeDatabase()) {
PostClientTask(FROM_HERE, base::Bind(&Backend::CompleteLoadInForeground,
this, loaded_callback, false));
} else {
ChainLoadCookies(loaded_callback);
}
}
void SQLitePersistentCookieStore::Backend::LoadKeyAndNotifyInBackground(
const std::string& key,
const LoadedCallback& loaded_callback,
const base::Time& posted_at) {
DCHECK(background_task_runner_->RunsTasksOnCurrentThread());
IncrementTimeDelta increment(&cookie_load_duration_);
UMA_HISTOGRAM_CUSTOM_TIMES("Cookie.TimeKeyLoadDBQueueWait",
base::Time::Now() - posted_at,
base::TimeDelta::FromMilliseconds(1),
base::TimeDelta::FromMinutes(1), 50);
bool success = false;
if (InitializeDatabase()) {
std::map<std::string, std::set<std::string>>::iterator it =
keys_to_load_.find(key);
if (it != keys_to_load_.end()) {
success = LoadCookiesForDomains(it->second);
keys_to_load_.erase(it);
} else {
success = true;
}
}
PostClientTask(
FROM_HERE,
base::Bind(
&SQLitePersistentCookieStore::Backend::CompleteLoadForKeyInForeground,
this, loaded_callback, success, posted_at));
}
void SQLitePersistentCookieStore::Backend::FlushAndNotifyInBackground(
const base::Closure& callback) {
Commit();
if (!callback.is_null())
PostClientTask(FROM_HERE, callback);
}
void SQLitePersistentCookieStore::Backend::CompleteLoadForKeyInForeground(
const LoadedCallback& loaded_callback,
bool load_success,
const ::Time& requested_at) {
DCHECK(client_task_runner_->RunsTasksOnCurrentThread());
UMA_HISTOGRAM_CUSTOM_TIMES("Cookie.TimeKeyLoadTotalWait",
base::Time::Now() - requested_at,
base::TimeDelta::FromMilliseconds(1),
base::TimeDelta::FromMinutes(1), 50);
Notify(loaded_callback, load_success);
{
base::AutoLock locked(metrics_lock_);
num_priority_waiting_--;
if (num_priority_waiting_ == 0) {
priority_wait_duration_ +=
base::Time::Now() - current_priority_wait_start_;
}
}
}
void SQLitePersistentCookieStore::Backend::ReportMetricsInBackground() {
UMA_HISTOGRAM_CUSTOM_TIMES("Cookie.TimeLoad", cookie_load_duration_,
base::TimeDelta::FromMilliseconds(1),
base::TimeDelta::FromMinutes(1), 50);
}
void SQLitePersistentCookieStore::Backend::ReportMetrics() {
PostBackgroundTask(
FROM_HERE,
base::Bind(
&SQLitePersistentCookieStore::Backend::ReportMetricsInBackground,
this));
{
base::AutoLock locked(metrics_lock_);
UMA_HISTOGRAM_CUSTOM_TIMES("Cookie.PriorityBlockingTime",
priority_wait_duration_,
base::TimeDelta::FromMilliseconds(1),
base::TimeDelta::FromMinutes(1), 50);
UMA_HISTOGRAM_COUNTS_100("Cookie.PriorityLoadCount",
total_priority_requests_);
UMA_HISTOGRAM_COUNTS_10000("Cookie.NumberOfLoadedCookies",
num_cookies_read_);
}
}
void SQLitePersistentCookieStore::Backend::CompleteLoadInForeground(
const LoadedCallback& loaded_callback,
bool load_success) {
Notify(loaded_callback, load_success);
if (load_success)
ReportMetrics();
}
void SQLitePersistentCookieStore::Backend::Notify(
const LoadedCallback& loaded_callback,
bool load_success) {
DCHECK(client_task_runner_->RunsTasksOnCurrentThread());
std::vector<CanonicalCookie*> cookies;
{
base::AutoLock locked(lock_);
cookies.swap(cookies_);
}
loaded_callback.Run(cookies);
}
bool SQLitePersistentCookieStore::Backend::InitializeDatabase() {
DCHECK(background_task_runner_->RunsTasksOnCurrentThread());
if (initialized_ || corruption_detected_) {
// Return false if we were previously initialized but the DB has since been
// closed, or if corruption caused a database reset during initialization.
return db_ != NULL;
}
base::Time start = base::Time::Now();
const base::FilePath dir = path_.DirName();
if (!base::PathExists(dir) && !base::CreateDirectory(dir)) {
return false;
}
int64_t db_size = 0;
if (base::GetFileSize(path_, &db_size))
UMA_HISTOGRAM_COUNTS("Cookie.DBSizeInKB", db_size / 1024);
db_.reset(new sql::Connection);
db_->set_histogram_tag("Cookie");
// Unretained to avoid a ref loop with |db_|.
db_->set_error_callback(
base::Bind(&SQLitePersistentCookieStore::Backend::DatabaseErrorCallback,
base::Unretained(this)));
if (!db_->Open(path_)) {
NOTREACHED() << "Unable to open cookie DB.";
if (corruption_detected_)
db_->Raze();
meta_table_.Reset();
db_.reset();
return false;
}
if (!EnsureDatabaseVersion() || !InitTable(db_.get())) {
NOTREACHED() << "Unable to open cookie DB.";
if (corruption_detected_)
db_->Raze();
meta_table_.Reset();
db_.reset();
return false;
}
UMA_HISTOGRAM_CUSTOM_TIMES("Cookie.TimeInitializeDB",
base::Time::Now() - start,
base::TimeDelta::FromMilliseconds(1),
base::TimeDelta::FromMinutes(1), 50);
start = base::Time::Now();
// Retrieve all the domains
sql::Statement smt(
db_->GetUniqueStatement("SELECT DISTINCT host_key FROM cookies"));
if (!smt.is_valid()) {
if (corruption_detected_)
db_->Raze();
meta_table_.Reset();
db_.reset();
return false;
}
std::vector<std::string> host_keys;
while (smt.Step())
host_keys.push_back(smt.ColumnString(0));
UMA_HISTOGRAM_CUSTOM_TIMES("Cookie.TimeLoadDomains",
base::Time::Now() - start,
base::TimeDelta::FromMilliseconds(1),
base::TimeDelta::FromMinutes(1), 50);
base::Time start_parse = base::Time::Now();
// Build a map of domain keys (always eTLD+1) to domains.
for (size_t idx = 0; idx < host_keys.size(); ++idx) {
const std::string& domain = host_keys[idx];
std::string key = registry_controlled_domains::GetDomainAndRegistry(
domain, registry_controlled_domains::INCLUDE_PRIVATE_REGISTRIES);
keys_to_load_[key].insert(domain);
}
UMA_HISTOGRAM_CUSTOM_TIMES("Cookie.TimeParseDomains",
base::Time::Now() - start_parse,
base::TimeDelta::FromMilliseconds(1),
base::TimeDelta::FromMinutes(1), 50);
UMA_HISTOGRAM_CUSTOM_TIMES("Cookie.TimeInitializeDomainMap",
base::Time::Now() - start,
base::TimeDelta::FromMilliseconds(1),
base::TimeDelta::FromMinutes(1), 50);
initialized_ = true;
if (!restore_old_session_cookies_)
DeleteSessionCookiesOnStartup();
return true;
}
void SQLitePersistentCookieStore::Backend::ChainLoadCookies(
const LoadedCallback& loaded_callback) {
DCHECK(background_task_runner_->RunsTasksOnCurrentThread());
IncrementTimeDelta increment(&cookie_load_duration_);
bool load_success = true;
if (!db_) {
// Close() has been called on this store.
load_success = false;
} else if (keys_to_load_.size() > 0) {
// Load cookies for the first domain key.
std::map<std::string, std::set<std::string>>::iterator it =
keys_to_load_.begin();
load_success = LoadCookiesForDomains(it->second);
keys_to_load_.erase(it);
}
// If load is successful and there are more domain keys to be loaded,
// then post a background task to continue chain-load;
// Otherwise notify on client runner.
if (load_success && keys_to_load_.size() > 0) {
bool success = background_task_runner_->PostDelayedTask(
FROM_HERE,
base::Bind(&Backend::ChainLoadCookies, this, loaded_callback),
base::TimeDelta::FromMilliseconds(kLoadDelayMilliseconds));
if (!success) {
LOG(WARNING) << "Failed to post task from " << FROM_HERE.ToString()
<< " to background_task_runner_.";
}
} else {
FinishedLoadingCookies(loaded_callback, load_success);
}
}
bool SQLitePersistentCookieStore::Backend::LoadCookiesForDomains(
const std::set<std::string>& domains) {
DCHECK(background_task_runner_->RunsTasksOnCurrentThread());
sql::Statement smt;
if (restore_old_session_cookies_) {
smt.Assign(db_->GetCachedStatement(
SQL_FROM_HERE,
"SELECT creation_utc, host_key, name, value, encrypted_value, path, "
"expires_utc, secure, httponly, firstpartyonly, last_access_utc, "
"has_expires, persistent, priority FROM cookies WHERE host_key = ?"));
} else {
smt.Assign(db_->GetCachedStatement(
SQL_FROM_HERE,
"SELECT creation_utc, host_key, name, value, encrypted_value, path, "
"expires_utc, secure, httponly, firstpartyonly, last_access_utc, "
"has_expires, persistent, priority FROM cookies WHERE host_key = ? "
"AND persistent = 1"));
}
if (!smt.is_valid()) {
smt.Clear(); // Disconnect smt_ref from db_.
meta_table_.Reset();
db_.reset();
return false;
}
std::vector<CanonicalCookie*> cookies;
std::set<std::string>::const_iterator it = domains.begin();
for (; it != domains.end(); ++it) {
smt.BindString(0, *it);
MakeCookiesFromSQLStatement(&cookies, &smt);
smt.Reset(true);
}
{
base::AutoLock locked(lock_);
cookies_.insert(cookies_.end(), cookies.begin(), cookies.end());
}
return true;
}
void SQLitePersistentCookieStore::Backend::MakeCookiesFromSQLStatement(
std::vector<CanonicalCookie*>* cookies,
sql::Statement* statement) {
sql::Statement& smt = *statement;
while (smt.Step()) {
std::string value;
std::string encrypted_value = smt.ColumnString(4);
if (!encrypted_value.empty() && crypto_) {
if (!crypto_->DecryptString(encrypted_value, &value))
continue;
} else {
value = smt.ColumnString(3);
}
std::unique_ptr<CanonicalCookie> cc(new CanonicalCookie(
// The "source" URL is not used with persisted cookies.
GURL(), // Source
smt.ColumnString(2), // name
value, // value
smt.ColumnString(1), // domain
smt.ColumnString(5), // path
Time::FromInternalValue(smt.ColumnInt64(0)), // creation_utc
Time::FromInternalValue(smt.ColumnInt64(6)), // expires_utc
Time::FromInternalValue(smt.ColumnInt64(10)), // last_access_utc
smt.ColumnInt(7) != 0, // secure
smt.ColumnInt(8) != 0, // httponly
DBCookieSameSiteToCookieSameSite(
static_cast<DBCookieSameSite>(smt.ColumnInt(9))), // samesite
DBCookiePriorityToCookiePriority(
static_cast<DBCookiePriority>(smt.ColumnInt(13))))); // priority
DLOG_IF(WARNING, cc->CreationDate() > Time::Now())
<< L"CreationDate too recent";
cookies->push_back(cc.release());
++num_cookies_read_;
}
}
bool SQLitePersistentCookieStore::Backend::EnsureDatabaseVersion() {
// Version check.
if (!meta_table_.Init(db_.get(), kCurrentVersionNumber,
kCompatibleVersionNumber)) {
return false;
}
if (meta_table_.GetCompatibleVersionNumber() > kCurrentVersionNumber) {
LOG(WARNING) << "Cookie database is too new.";
return false;
}
int cur_version = meta_table_.GetVersionNumber();
if (cur_version == 2) {
sql::Transaction transaction(db_.get());
if (!transaction.Begin())
return false;
if (!db_->Execute(
"ALTER TABLE cookies ADD COLUMN last_access_utc "
"INTEGER DEFAULT 0") ||
!db_->Execute("UPDATE cookies SET last_access_utc = creation_utc")) {
LOG(WARNING) << "Unable to update cookie database to version 3.";
return false;
}
++cur_version;
meta_table_.SetVersionNumber(cur_version);
meta_table_.SetCompatibleVersionNumber(
std::min(cur_version, kCompatibleVersionNumber));
transaction.Commit();
}
if (cur_version == 3) {
// The time epoch changed for Mac & Linux in this version to match Windows.
// This patch came after the main epoch change happened, so some
// developers have "good" times for cookies added by the more recent
// versions. So we have to be careful to only update times that are under
// the old system (which will appear to be from before 1970 in the new
// system). The magic number used below is 1970 in our time units.
sql::Transaction transaction(db_.get());
transaction.Begin();
#if !defined(OS_WIN)
ignore_result(db_->Execute(
"UPDATE cookies "
"SET creation_utc = creation_utc + 11644473600000000 "
"WHERE rowid IN "
"(SELECT rowid FROM cookies WHERE "
"creation_utc > 0 AND creation_utc < 11644473600000000)"));
ignore_result(db_->Execute(
"UPDATE cookies "
"SET expires_utc = expires_utc + 11644473600000000 "
"WHERE rowid IN "
"(SELECT rowid FROM cookies WHERE "
"expires_utc > 0 AND expires_utc < 11644473600000000)"));
ignore_result(db_->Execute(
"UPDATE cookies "
"SET last_access_utc = last_access_utc + 11644473600000000 "
"WHERE rowid IN "
"(SELECT rowid FROM cookies WHERE "
"last_access_utc > 0 AND last_access_utc < 11644473600000000)"));
#endif
++cur_version;
meta_table_.SetVersionNumber(cur_version);
transaction.Commit();
}
if (cur_version == 4) {
const base::TimeTicks start_time = base::TimeTicks::Now();
sql::Transaction transaction(db_.get());
if (!transaction.Begin())
return false;
if (!db_->Execute(
"ALTER TABLE cookies "
"ADD COLUMN has_expires INTEGER DEFAULT 1") ||
!db_->Execute(
"ALTER TABLE cookies "
"ADD COLUMN persistent INTEGER DEFAULT 1")) {
LOG(WARNING) << "Unable to update cookie database to version 5.";
return false;
}
++cur_version;
meta_table_.SetVersionNumber(cur_version);
meta_table_.SetCompatibleVersionNumber(
std::min(cur_version, kCompatibleVersionNumber));
transaction.Commit();
UMA_HISTOGRAM_TIMES("Cookie.TimeDatabaseMigrationToV5",
base::TimeTicks::Now() - start_time);
}
if (cur_version == 5) {
const base::TimeTicks start_time = base::TimeTicks::Now();
sql::Transaction transaction(db_.get());
if (!transaction.Begin())
return false;
// Alter the table to add the priority column with a default value.
std::string stmt(base::StringPrintf(
"ALTER TABLE cookies ADD COLUMN priority INTEGER DEFAULT %d",
CookiePriorityToDBCookiePriority(COOKIE_PRIORITY_DEFAULT)));
if (!db_->Execute(stmt.c_str())) {
LOG(WARNING) << "Unable to update cookie database to version 6.";
return false;
}
++cur_version;
meta_table_.SetVersionNumber(cur_version);
meta_table_.SetCompatibleVersionNumber(
std::min(cur_version, kCompatibleVersionNumber));
transaction.Commit();
UMA_HISTOGRAM_TIMES("Cookie.TimeDatabaseMigrationToV6",
base::TimeTicks::Now() - start_time);
}
if (cur_version == 6) {
const base::TimeTicks start_time = base::TimeTicks::Now();
sql::Transaction transaction(db_.get());
if (!transaction.Begin())
return false;
// Alter the table to add empty "encrypted value" column.
if (!db_->Execute(
"ALTER TABLE cookies "
"ADD COLUMN encrypted_value BLOB DEFAULT ''")) {
LOG(WARNING) << "Unable to update cookie database to version 7.";
return false;
}
++cur_version;
meta_table_.SetVersionNumber(cur_version);
meta_table_.SetCompatibleVersionNumber(
std::min(cur_version, kCompatibleVersionNumber));
transaction.Commit();
UMA_HISTOGRAM_TIMES("Cookie.TimeDatabaseMigrationToV7",
base::TimeTicks::Now() - start_time);
}
if (cur_version == 7) {
const base::TimeTicks start_time = base::TimeTicks::Now();
sql::Transaction transaction(db_.get());
if (!transaction.Begin())
return false;
// Alter the table to add a 'firstpartyonly' column.
if (!db_->Execute(
"ALTER TABLE cookies "
"ADD COLUMN firstpartyonly INTEGER DEFAULT 0")) {
LOG(WARNING) << "Unable to update cookie database to version 8.";
return false;
}
++cur_version;
meta_table_.SetVersionNumber(cur_version);
meta_table_.SetCompatibleVersionNumber(
std::min(cur_version, kCompatibleVersionNumber));
transaction.Commit();
UMA_HISTOGRAM_TIMES("Cookie.TimeDatabaseMigrationToV8",
base::TimeTicks::Now() - start_time);
}
if (cur_version == 8) {
const base::TimeTicks start_time = base::TimeTicks::Now();
sql::Transaction transaction(db_.get());
if (!transaction.Begin())
return false;
if (!db_->Execute("DROP INDEX IF EXISTS cookie_times")) {
LOG(WARNING)
<< "Unable to drop table cookie_times in update to version 9.";
return false;
}
if (!db_->Execute(
"CREATE INDEX IF NOT EXISTS domain ON cookies(host_key)")) {
LOG(WARNING) << "Unable to create index domain in update to version 9.";
return false;
}
#if defined(OS_IOS)
// iOS 8.1 and older doesn't support partial indices. iOS 8.2 supports
// partial indices.
if (!db_->Execute(
"CREATE INDEX IF NOT EXISTS is_transient ON cookies(persistent)")) {
#else
if (!db_->Execute(
"CREATE INDEX IF NOT EXISTS is_transient ON cookies(persistent) "
"where persistent != 1")) {
#endif
LOG(WARNING)
<< "Unable to create index is_transient in update to version 9.";
return false;
}
++cur_version;
meta_table_.SetVersionNumber(cur_version);
meta_table_.SetCompatibleVersionNumber(
std::min(cur_version, kCompatibleVersionNumber));
transaction.Commit();
UMA_HISTOGRAM_TIMES("Cookie.TimeDatabaseMigrationToV9",
base::TimeTicks::Now() - start_time);
}
// Put future migration cases here.
if (cur_version < kCurrentVersionNumber) {
UMA_HISTOGRAM_COUNTS_100("Cookie.CorruptMetaTable", 1);
meta_table_.Reset();
db_.reset(new sql::Connection);
if (!sql::Connection::Delete(path_) || !db_->Open(path_) ||
!meta_table_.Init(db_.get(), kCurrentVersionNumber,
kCompatibleVersionNumber)) {
UMA_HISTOGRAM_COUNTS_100("Cookie.CorruptMetaTableRecoveryFailed", 1);
NOTREACHED() << "Unable to reset the cookie DB.";
meta_table_.Reset();
db_.reset();
return false;
}
}
return true;
}
void SQLitePersistentCookieStore::Backend::AddCookie(
const CanonicalCookie& cc) {
BatchOperation(PendingOperation::COOKIE_ADD, cc);
}
void SQLitePersistentCookieStore::Backend::UpdateCookieAccessTime(
const CanonicalCookie& cc) {
BatchOperation(PendingOperation::COOKIE_UPDATEACCESS, cc);
}
void SQLitePersistentCookieStore::Backend::DeleteCookie(
const CanonicalCookie& cc) {
BatchOperation(PendingOperation::COOKIE_DELETE, cc);
}
void SQLitePersistentCookieStore::Backend::BatchOperation(
PendingOperation::OperationType op,
const CanonicalCookie& cc) {
// Commit every 30 seconds.
static const int kCommitIntervalMs = 30 * 1000;
// Commit right away if we have more than 512 outstanding operations.
static const size_t kCommitAfterBatchSize = 512;
DCHECK(!background_task_runner_->RunsTasksOnCurrentThread());
// We do a full copy of the cookie here, and hopefully just here.
std::unique_ptr<PendingOperation> po(new PendingOperation(op, cc));
PendingOperationsList::size_type num_pending;
{
base::AutoLock locked(lock_);
pending_.push_back(po.release());
num_pending = ++num_pending_;
}
if (num_pending == 1) {
// We've gotten our first entry for this batch, fire off the timer.
if (!background_task_runner_->PostDelayedTask(
FROM_HERE, base::Bind(&Backend::Commit, this),
base::TimeDelta::FromMilliseconds(kCommitIntervalMs))) {
NOTREACHED() << "background_task_runner_ is not running.";
}
} else if (num_pending == kCommitAfterBatchSize) {
// We've reached a big enough batch, fire off a commit now.
PostBackgroundTask(FROM_HERE, base::Bind(&Backend::Commit, this));
}
}
void SQLitePersistentCookieStore::Backend::Commit() {
DCHECK(background_task_runner_->RunsTasksOnCurrentThread());
PendingOperationsList ops;
{
base::AutoLock locked(lock_);
pending_.swap(ops);
num_pending_ = 0;
}
// Maybe an old timer fired or we are already Close()'ed.
if (!db_.get() || ops.empty())
return;
sql::Statement add_smt(db_->GetCachedStatement(
SQL_FROM_HERE,
"INSERT INTO cookies (creation_utc, host_key, name, value, "
"encrypted_value, path, expires_utc, secure, httponly, firstpartyonly, "
"last_access_utc, has_expires, persistent, priority) "
"VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?)"));
if (!add_smt.is_valid())
return;
sql::Statement update_access_smt(db_->GetCachedStatement(
SQL_FROM_HERE,
"UPDATE cookies SET last_access_utc=? WHERE creation_utc=?"));
if (!update_access_smt.is_valid())
return;
sql::Statement del_smt(db_->GetCachedStatement(
SQL_FROM_HERE, "DELETE FROM cookies WHERE creation_utc=?"));
if (!del_smt.is_valid())
return;
sql::Transaction transaction(db_.get());
if (!transaction.Begin())
return;
for (PendingOperationsList::iterator it = ops.begin(); it != ops.end();
++it) {
// Free the cookies as we commit them to the database.
std::unique_ptr<PendingOperation> po(*it);
switch (po->op()) {
case PendingOperation::COOKIE_ADD:
add_smt.Reset(true);
add_smt.BindInt64(0, po->cc().CreationDate().ToInternalValue());
add_smt.BindString(1, po->cc().Domain());
add_smt.BindString(2, po->cc().Name());
if (crypto_ && crypto_->ShouldEncrypt()) {
std::string encrypted_value;
if (!crypto_->EncryptString(po->cc().Value(), &encrypted_value))
continue;
add_smt.BindCString(3, ""); // value
// BindBlob() immediately makes an internal copy of the data.
add_smt.BindBlob(4, encrypted_value.data(),
static_cast<int>(encrypted_value.length()));
} else {
add_smt.BindString(3, po->cc().Value());
add_smt.BindBlob(4, "", 0); // encrypted_value
}
add_smt.BindString(5, po->cc().Path());
add_smt.BindInt64(6, po->cc().ExpiryDate().ToInternalValue());
add_smt.BindInt(7, po->cc().IsSecure());
add_smt.BindInt(8, po->cc().IsHttpOnly());
add_smt.BindInt(9,
CookieSameSiteToDBCookieSameSite(po->cc().SameSite()));
add_smt.BindInt64(10, po->cc().LastAccessDate().ToInternalValue());
add_smt.BindInt(11, po->cc().IsPersistent());
add_smt.BindInt(12, po->cc().IsPersistent());
add_smt.BindInt(13,
CookiePriorityToDBCookiePriority(po->cc().Priority()));
if (!add_smt.Run())
NOTREACHED() << "Could not add a cookie to the DB.";
break;
case PendingOperation::COOKIE_UPDATEACCESS:
update_access_smt.Reset(true);
update_access_smt.BindInt64(
0, po->cc().LastAccessDate().ToInternalValue());
update_access_smt.BindInt64(1,
po->cc().CreationDate().ToInternalValue());
if (!update_access_smt.Run())
NOTREACHED() << "Could not update cookie last access time in the DB.";
break;
case PendingOperation::COOKIE_DELETE:
del_smt.Reset(true);
del_smt.BindInt64(0, po->cc().CreationDate().ToInternalValue());
if (!del_smt.Run())
NOTREACHED() << "Could not delete a cookie from the DB.";
break;
default:
NOTREACHED();
break;
}
}
bool succeeded = transaction.Commit();
UMA_HISTOGRAM_ENUMERATION("Cookie.BackingStoreUpdateResults",
succeeded ? 0 : 1, 2);
}
void SQLitePersistentCookieStore::Backend::Flush(
const base::Closure& callback) {
DCHECK(!background_task_runner_->RunsTasksOnCurrentThread());
PostBackgroundTask(FROM_HERE, base::Bind(&Backend::FlushAndNotifyInBackground,
this, callback));
}
// Fire off a close message to the background runner. We could still have a
// pending commit timer or Load operations holding references on us, but if/when
// this fires we will already have been cleaned up and it will be ignored.
void SQLitePersistentCookieStore::Backend::Close(
const base::Closure& callback) {
if (background_task_runner_->RunsTasksOnCurrentThread()) {
InternalBackgroundClose(callback);
} else {
// Must close the backend on the background runner.
PostBackgroundTask(FROM_HERE, base::Bind(&Backend::InternalBackgroundClose,
this, callback));
}
}
void SQLitePersistentCookieStore::Backend::InternalBackgroundClose(
const base::Closure& callback) {
DCHECK(background_task_runner_->RunsTasksOnCurrentThread());
// Commit any pending operations
Commit();
meta_table_.Reset();
db_.reset();
// We're clean now.
if (!callback.is_null())
callback.Run();
}
void SQLitePersistentCookieStore::Backend::DatabaseErrorCallback(
int error,
sql::Statement* stmt) {
DCHECK(background_task_runner_->RunsTasksOnCurrentThread());
if (!sql::IsErrorCatastrophic(error))
return;
// TODO(shess): Running KillDatabase() multiple times should be
// safe.
if (corruption_detected_)
return;
corruption_detected_ = true;
// Don't just do the close/delete here, as we are being called by |db| and
// that seems dangerous.
// TODO(shess): Consider just calling RazeAndClose() immediately.
// db_ may not be safe to reset at this point, but RazeAndClose()
// would cause the stack to unwind safely with errors.
PostBackgroundTask(FROM_HERE, base::Bind(&Backend::KillDatabase, this));
}
void SQLitePersistentCookieStore::Backend::KillDatabase() {
DCHECK(background_task_runner_->RunsTasksOnCurrentThread());
if (db_) {
// This Backend will now be in-memory only. In a future run we will recreate
// the database. Hopefully things go better then!
bool success = db_->RazeAndClose();
UMA_HISTOGRAM_BOOLEAN("Cookie.KillDatabaseResult", success);
meta_table_.Reset();
db_.reset();
}
}
void SQLitePersistentCookieStore::Backend::DeleteAllInList(
const std::list<CookieOrigin>& cookies) {
if (cookies.empty())
return;
if (background_task_runner_->RunsTasksOnCurrentThread()) {
BackgroundDeleteAllInList(cookies);
} else {
// Perform deletion on background task runner.
PostBackgroundTask(
FROM_HERE,
base::Bind(&Backend::BackgroundDeleteAllInList, this, cookies));
}
}
void SQLitePersistentCookieStore::Backend::DeleteSessionCookiesOnStartup() {
DCHECK(background_task_runner_->RunsTasksOnCurrentThread());
base::Time start_time = base::Time::Now();
if (!db_->Execute("DELETE FROM cookies WHERE persistent != 1"))
LOG(WARNING) << "Unable to delete session cookies.";
UMA_HISTOGRAM_TIMES("Cookie.Startup.TimeSpentDeletingCookies",
base::Time::Now() - start_time);
UMA_HISTOGRAM_COUNTS("Cookie.Startup.NumberOfCookiesDeleted",
db_->GetLastChangeCount());
}
void SQLitePersistentCookieStore::Backend::BackgroundDeleteAllInList(
const std::list<CookieOrigin>& cookies) {
DCHECK(background_task_runner_->RunsTasksOnCurrentThread());
if (!db_)
return;
// Force a commit of any pending writes before issuing deletes.
// TODO(rohitrao): Remove the need for this Commit() by instead pruning the
// list of pending operations. https://crbug.com/486742.
Commit();
sql::Statement del_smt(db_->GetCachedStatement(
SQL_FROM_HERE, "DELETE FROM cookies WHERE host_key=? AND secure=?"));
if (!del_smt.is_valid()) {
LOG(WARNING) << "Unable to delete cookies on shutdown.";
return;
}
sql::Transaction transaction(db_.get());
if (!transaction.Begin()) {
LOG(WARNING) << "Unable to delete cookies on shutdown.";
return;
}
for (const auto& cookie : cookies) {
const GURL url(cookie_util::CookieOriginToURL(cookie.first, cookie.second));
if (!url.is_valid())
continue;
del_smt.Reset(true);
del_smt.BindString(0, cookie.first);
del_smt.BindInt(1, cookie.second);
if (!del_smt.Run())
NOTREACHED() << "Could not delete a cookie from the DB.";
}
if (!transaction.Commit())
LOG(WARNING) << "Unable to delete cookies on shutdown.";
}
void SQLitePersistentCookieStore::Backend::PostBackgroundTask(
const tracked_objects::Location& origin,
const base::Closure& task) {
if (!background_task_runner_->PostTask(origin, task)) {
LOG(WARNING) << "Failed to post task from " << origin.ToString()
<< " to background_task_runner_.";
}
}
void SQLitePersistentCookieStore::Backend::PostClientTask(
const tracked_objects::Location& origin,
const base::Closure& task) {
if (!client_task_runner_->PostTask(origin, task)) {
LOG(WARNING) << "Failed to post task from " << origin.ToString()
<< " to client_task_runner_.";
}
}
void SQLitePersistentCookieStore::Backend::FinishedLoadingCookies(
const LoadedCallback& loaded_callback,
bool success) {
PostClientTask(FROM_HERE, base::Bind(&Backend::CompleteLoadInForeground, this,
loaded_callback, success));
}
SQLitePersistentCookieStore::SQLitePersistentCookieStore(
const base::FilePath& path,
const scoped_refptr<base::SequencedTaskRunner>& client_task_runner,
const scoped_refptr<base::SequencedTaskRunner>& background_task_runner,
bool restore_old_session_cookies,
CookieCryptoDelegate* crypto_delegate)
: backend_(new Backend(path,
client_task_runner,
background_task_runner,
restore_old_session_cookies,
crypto_delegate)) {
}
void SQLitePersistentCookieStore::DeleteAllInList(
const std::list<CookieOrigin>& cookies) {
if (backend_)
backend_->DeleteAllInList(cookies);
}
void SQLitePersistentCookieStore::Close(const base::Closure& callback) {
if (backend_) {
backend_->Close(callback);
// We release our reference to the Backend, though it will probably still
// have a reference if the background runner has not run
// Backend::InternalBackgroundClose() yet.
backend_ = nullptr;
}
}
void SQLitePersistentCookieStore::Load(const LoadedCallback& loaded_callback) {
DCHECK(!loaded_callback.is_null());
if (backend_)
backend_->Load(loaded_callback);
else
loaded_callback.Run(std::vector<CanonicalCookie*>());
}
void SQLitePersistentCookieStore::LoadCookiesForKey(
const std::string& key,
const LoadedCallback& loaded_callback) {
DCHECK(!loaded_callback.is_null());
if (backend_)
backend_->LoadCookiesForKey(key, loaded_callback);
else
loaded_callback.Run(std::vector<CanonicalCookie*>());
}
void SQLitePersistentCookieStore::AddCookie(const CanonicalCookie& cc) {
if (backend_)
backend_->AddCookie(cc);
}
void SQLitePersistentCookieStore::UpdateCookieAccessTime(
const CanonicalCookie& cc) {
if (backend_)
backend_->UpdateCookieAccessTime(cc);
}
void SQLitePersistentCookieStore::DeleteCookie(const CanonicalCookie& cc) {
if (backend_)
backend_->DeleteCookie(cc);
}
void SQLitePersistentCookieStore::SetForceKeepSessionState() {
// This store never discards session-only cookies, so this call has no effect.
}
void SQLitePersistentCookieStore::Flush(const base::Closure& callback) {
if (backend_)
backend_->Flush(callback);
}
SQLitePersistentCookieStore::~SQLitePersistentCookieStore() {
Close(base::Closure());
}
} // namespace net