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// 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.
// Portions of this code based on Mozilla:
// (netwerk/cookie/src/nsCookieService.cpp)
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2003
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Daniel Witte (dwitte@stanford.edu)
* Michiel van Leeuwen (mvl@exedo.nl)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "net/cookies/cookie_monster.h"
#include <algorithm>
#include <set>
#include "base/basictypes.h"
#include "base/bind.h"
#include "base/callback.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop.h"
#include "base/message_loop_proxy.h"
#include "base/metrics/histogram.h"
#include "base/string_util.h"
#include "base/stringprintf.h"
#include "googleurl/src/gurl.h"
#include "net/cookies/canonical_cookie.h"
#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
#include "net/cookies/cookie_util.h"
#include "net/cookies/parsed_cookie.h"
using base::Time;
using base::TimeDelta;
using base::TimeTicks;
// In steady state, most cookie requests can be satisfied by the in memory
// cookie monster store. However, if a request comes in during the initial
// cookie load, it must be delayed until that load completes. That is done by
// queueing it on CookieMonster::queue_ and running it when notification of
// cookie load completion is received via CookieMonster::OnLoaded. This callback
// is passed to the persistent store from CookieMonster::InitStore(), which is
// called on the first operation invoked on the CookieMonster.
//
// On the browser critical paths (e.g. for loading initial web pages in a
// session restore) it may take too long to wait for the full load. If a cookie
// request is for a specific URL, DoCookieTaskForURL is called, which triggers a
// priority load if the key is not loaded yet by calling PersistentCookieStore
// :: LoadCookiesForKey. The request is queued in CookieMonster::tasks_queued
// and executed upon receiving notification of key load completion via
// CookieMonster::OnKeyLoaded(). If multiple requests for the same eTLD+1 are
// received before key load completion, only the first request calls
// PersistentCookieStore::LoadCookiesForKey, all subsequent requests are queued
// in CookieMonster::tasks_queued and executed upon receiving notification of
// key load completion triggered by the first request for the same eTLD+1.
static const int kMinutesInTenYears = 10 * 365 * 24 * 60;
namespace net {
// See comments at declaration of these variables in cookie_monster.h
// for details.
const size_t CookieMonster::kDomainMaxCookies = 180;
const size_t CookieMonster::kDomainPurgeCookies = 30;
const size_t CookieMonster::kMaxCookies = 3300;
const size_t CookieMonster::kPurgeCookies = 300;
const int CookieMonster::kSafeFromGlobalPurgeDays = 30;
namespace {
typedef std::vector<CanonicalCookie*> CanonicalCookieVector;
// Default minimum delay after updating a cookie's LastAccessDate before we
// will update it again.
const int kDefaultAccessUpdateThresholdSeconds = 60;
// Comparator to sort cookies from highest creation date to lowest
// creation date.
struct OrderByCreationTimeDesc {
bool operator()(const CookieMonster::CookieMap::iterator& a,
const CookieMonster::CookieMap::iterator& b) const {
return a->second->CreationDate() > b->second->CreationDate();
}
};
// Constants for use in VLOG
const int kVlogPerCookieMonster = 1;
const int kVlogPeriodic = 3;
const int kVlogGarbageCollection = 5;
const int kVlogSetCookies = 7;
const int kVlogGetCookies = 9;
// Mozilla sorts on the path length (longest first), and then it
// sorts by creation time (oldest first).
// The RFC says the sort order for the domain attribute is undefined.
bool CookieSorter(CanonicalCookie* cc1, CanonicalCookie* cc2) {
if (cc1->Path().length() == cc2->Path().length())
return cc1->CreationDate() < cc2->CreationDate();
return cc1->Path().length() > cc2->Path().length();
}
bool LRUCookieSorter(const CookieMonster::CookieMap::iterator& it1,
const CookieMonster::CookieMap::iterator& it2) {
// Cookies accessed less recently should be deleted first.
if (it1->second->LastAccessDate() != it2->second->LastAccessDate())
return it1->second->LastAccessDate() < it2->second->LastAccessDate();
// In rare cases we might have two cookies with identical last access times.
// To preserve the stability of the sort, in these cases prefer to delete
// older cookies over newer ones. CreationDate() is guaranteed to be unique.
return it1->second->CreationDate() < it2->second->CreationDate();
}
// Our strategy to find duplicates is:
// (1) Build a map from (cookiename, cookiepath) to
// {list of cookies with this signature, sorted by creation time}.
// (2) For each list with more than 1 entry, keep the cookie having the
// most recent creation time, and delete the others.
//
// Two cookies are considered equivalent if they have the same domain,
// name, and path.
struct CookieSignature {
public:
CookieSignature(const std::string& name, const std::string& domain,
const std::string& path)
: name(name),
domain(domain),
path(path) {}
// To be a key for a map this class needs to be assignable, copyable,
// and have an operator<. The default assignment operator
// and copy constructor are exactly what we want.
bool operator<(const CookieSignature& cs) const {
// Name compare dominates, then domain, then path.
int diff = name.compare(cs.name);
if (diff != 0)
return diff < 0;
diff = domain.compare(cs.domain);
if (diff != 0)
return diff < 0;
return path.compare(cs.path) < 0;
}
std::string name;
std::string domain;
std::string path;
};
// Determine the cookie domain to use for setting the specified cookie.
bool GetCookieDomain(const GURL& url,
const ParsedCookie& pc,
std::string* result) {
std::string domain_string;
if (pc.HasDomain())
domain_string = pc.Domain();
return cookie_util::GetCookieDomainWithString(url, domain_string, result);
}
// Helper for GarbageCollection. If |cookie_its->size() > num_max|, remove the
// |num_max - num_purge| most recently accessed cookies from cookie_its.
// (In other words, leave the entries that are candidates for
// eviction in cookie_its.) The cookies returned will be in order sorted by
// access time, least recently accessed first. The access time of the least
// recently accessed entry not returned will be placed in
// |*lra_removed| if that pointer is set. FindLeastRecentlyAccessed
// returns false if no manipulation is done (because the list size is less
// than num_max), true otherwise.
bool FindLeastRecentlyAccessed(
size_t num_max,
size_t num_purge,
Time* lra_removed,
std::vector<CookieMonster::CookieMap::iterator>* cookie_its) {
DCHECK_LE(num_purge, num_max);
if (cookie_its->size() > num_max) {
VLOG(kVlogGarbageCollection)
<< "FindLeastRecentlyAccessed() Deep Garbage Collect.";
num_purge += cookie_its->size() - num_max;
DCHECK_GT(cookie_its->size(), num_purge);
// Add 1 so that we can get the last time left in the store.
std::partial_sort(cookie_its->begin(), cookie_its->begin() + num_purge + 1,
cookie_its->end(), LRUCookieSorter);
*lra_removed =
(*(cookie_its->begin() + num_purge))->second->LastAccessDate();
cookie_its->erase(cookie_its->begin() + num_purge, cookie_its->end());
return true;
}
return false;
}
// Mapping between DeletionCause and Delegate::ChangeCause; the mapping also
// provides a boolean that specifies whether or not an OnCookieChanged
// notification ought to be generated.
typedef struct ChangeCausePair_struct {
CookieMonster::Delegate::ChangeCause cause;
bool notify;
} ChangeCausePair;
ChangeCausePair ChangeCauseMapping[] = {
// DELETE_COOKIE_EXPLICIT
{ CookieMonster::Delegate::CHANGE_COOKIE_EXPLICIT, true },
// DELETE_COOKIE_OVERWRITE
{ CookieMonster::Delegate::CHANGE_COOKIE_OVERWRITE, true },
// DELETE_COOKIE_EXPIRED
{ CookieMonster::Delegate::CHANGE_COOKIE_EXPIRED, true },
// DELETE_COOKIE_EVICTED
{ CookieMonster::Delegate::CHANGE_COOKIE_EVICTED, true },
// DELETE_COOKIE_DUPLICATE_IN_BACKING_STORE
{ CookieMonster::Delegate::CHANGE_COOKIE_EXPLICIT, false },
// DELETE_COOKIE_DONT_RECORD
{ CookieMonster::Delegate::CHANGE_COOKIE_EXPLICIT, false },
// DELETE_COOKIE_EVICTED_DOMAIN
{ CookieMonster::Delegate::CHANGE_COOKIE_EVICTED, true },
// DELETE_COOKIE_EVICTED_GLOBAL
{ CookieMonster::Delegate::CHANGE_COOKIE_EVICTED, true },
// DELETE_COOKIE_EVICTED_DOMAIN_PRE_SAFE
{ CookieMonster::Delegate::CHANGE_COOKIE_EVICTED, true },
// DELETE_COOKIE_EVICTED_DOMAIN_POST_SAFE
{ CookieMonster::Delegate::CHANGE_COOKIE_EVICTED, true },
// DELETE_COOKIE_EXPIRED_OVERWRITE
{ CookieMonster::Delegate::CHANGE_COOKIE_EXPIRED_OVERWRITE, true },
// DELETE_COOKIE_LAST_ENTRY
{ CookieMonster::Delegate::CHANGE_COOKIE_EXPLICIT, false }
};
std::string BuildCookieLine(const CanonicalCookieVector& cookies) {
std::string cookie_line;
for (CanonicalCookieVector::const_iterator it = cookies.begin();
it != cookies.end(); ++it) {
if (it != cookies.begin())
cookie_line += "; ";
// In Mozilla if you set a cookie like AAAA, it will have an empty token
// and a value of AAAA. When it sends the cookie back, it will send AAAA,
// so we need to avoid sending =AAAA for a blank token value.
if (!(*it)->Name().empty())
cookie_line += (*it)->Name() + "=";
cookie_line += (*it)->Value();
}
return cookie_line;
}
void BuildCookieInfoList(const CanonicalCookieVector& cookies,
std::vector<CookieStore::CookieInfo>* cookie_infos) {
for (CanonicalCookieVector::const_iterator it = cookies.begin();
it != cookies.end(); ++it) {
const CanonicalCookie* cookie = *it;
CookieStore::CookieInfo cookie_info;
cookie_info.name = cookie->Name();
cookie_info.creation_date = cookie->CreationDate();
cookie_info.mac_key = cookie->MACKey();
cookie_info.mac_algorithm = cookie->MACAlgorithm();
cookie_infos->push_back(cookie_info);
}
}
} // namespace
// static
bool CookieMonster::default_enable_file_scheme_ = false;
CookieMonster::CookieMonster(PersistentCookieStore* store, Delegate* delegate)
: initialized_(false),
loaded_(false),
store_(store),
last_access_threshold_(
TimeDelta::FromSeconds(kDefaultAccessUpdateThresholdSeconds)),
delegate_(delegate),
last_statistic_record_time_(Time::Now()),
keep_expired_cookies_(false),
persist_session_cookies_(false) {
InitializeHistograms();
SetDefaultCookieableSchemes();
}
CookieMonster::CookieMonster(PersistentCookieStore* store,
Delegate* delegate,
int last_access_threshold_milliseconds)
: initialized_(false),
loaded_(false),
store_(store),
last_access_threshold_(base::TimeDelta::FromMilliseconds(
last_access_threshold_milliseconds)),
delegate_(delegate),
last_statistic_record_time_(base::Time::Now()),
keep_expired_cookies_(false),
persist_session_cookies_(false) {
InitializeHistograms();
SetDefaultCookieableSchemes();
}
// Task classes for queueing the coming request.
class CookieMonster::CookieMonsterTask
: public base::RefCountedThreadSafe<CookieMonsterTask> {
public:
// Runs the task and invokes the client callback on the thread that
// originally constructed the task.
virtual void Run() = 0;
protected:
explicit CookieMonsterTask(CookieMonster* cookie_monster);
virtual ~CookieMonsterTask();
// Invokes the callback immediately, if the current thread is the one
// that originated the task, or queues the callback for execution on the
// appropriate thread. Maintains a reference to this CookieMonsterTask
// instance until the callback completes.
void InvokeCallback(base::Closure callback);
CookieMonster* cookie_monster() {
return cookie_monster_;
}
private:
friend class base::RefCountedThreadSafe<CookieMonsterTask>;
CookieMonster* cookie_monster_;
scoped_refptr<base::MessageLoopProxy> thread_;
DISALLOW_COPY_AND_ASSIGN(CookieMonsterTask);
};
CookieMonster::CookieMonsterTask::CookieMonsterTask(
CookieMonster* cookie_monster)
: cookie_monster_(cookie_monster),
thread_(base::MessageLoopProxy::current()) {
}
CookieMonster::CookieMonsterTask::~CookieMonsterTask() {}
// Unfortunately, one cannot re-bind a Callback with parameters into a closure.
// Therefore, the closure passed to InvokeCallback is a clumsy binding of
// Callback::Run on a wrapped Callback instance. Since Callback is not
// reference counted, we bind to an instance that is a member of the
// CookieMonsterTask subclass. Then, we cannot simply post the callback to a
// message loop because the underlying instance may be destroyed (along with the
// CookieMonsterTask instance) in the interim. Therefore, we post a callback
// bound to the CookieMonsterTask, which *is* reference counted (thus preventing
// destruction of the original callback), and which invokes the closure (which
// invokes the original callback with the returned data).
void CookieMonster::CookieMonsterTask::InvokeCallback(base::Closure callback) {
if (thread_->BelongsToCurrentThread()) {
callback.Run();
} else {
thread_->PostTask(FROM_HERE, base::Bind(
&CookieMonster::CookieMonsterTask::InvokeCallback, this, callback));
}
}
// Task class for SetCookieWithDetails call.
class CookieMonster::SetCookieWithDetailsTask
: public CookieMonster::CookieMonsterTask {
public:
SetCookieWithDetailsTask(
CookieMonster* cookie_monster,
const GURL& url, const std::string& name, const std::string& value,
const std::string& domain, const std::string& path,
const base::Time& expiration_time, bool secure, bool http_only,
const CookieMonster::SetCookiesCallback& callback)
: CookieMonsterTask(cookie_monster),
url_(url),
name_(name),
value_(value),
domain_(domain),
path_(path),
expiration_time_(expiration_time),
secure_(secure),
http_only_(http_only),
callback_(callback) {
}
// CookieMonster::CookieMonsterTask:
virtual void Run() OVERRIDE;
protected:
virtual ~SetCookieWithDetailsTask() {}
private:
GURL url_;
std::string name_;
std::string value_;
std::string domain_;
std::string path_;
base::Time expiration_time_;
bool secure_;
bool http_only_;
CookieMonster::SetCookiesCallback callback_;
DISALLOW_COPY_AND_ASSIGN(SetCookieWithDetailsTask);
};
void CookieMonster::SetCookieWithDetailsTask::Run() {
bool success = this->cookie_monster()->
SetCookieWithDetails(url_, name_, value_, domain_, path_,
expiration_time_, secure_, http_only_);
if (!callback_.is_null()) {
this->InvokeCallback(base::Bind(&CookieMonster::SetCookiesCallback::Run,
base::Unretained(&callback_), success));
}
}
// Task class for GetAllCookies call.
class CookieMonster::GetAllCookiesTask
: public CookieMonster::CookieMonsterTask {
public:
GetAllCookiesTask(CookieMonster* cookie_monster,
const CookieMonster::GetCookieListCallback& callback)
: CookieMonsterTask(cookie_monster),
callback_(callback) {
}
// CookieMonster::CookieMonsterTask
virtual void Run() OVERRIDE;
protected:
virtual ~GetAllCookiesTask() {}
private:
CookieMonster::GetCookieListCallback callback_;
DISALLOW_COPY_AND_ASSIGN(GetAllCookiesTask);
};
void CookieMonster::GetAllCookiesTask::Run() {
if (!callback_.is_null()) {
CookieList cookies = this->cookie_monster()->GetAllCookies();
this->InvokeCallback(base::Bind(&CookieMonster::GetCookieListCallback::Run,
base::Unretained(&callback_), cookies));
}
}
// Task class for GetAllCookiesForURLWithOptions call.
class CookieMonster::GetAllCookiesForURLWithOptionsTask
: public CookieMonster::CookieMonsterTask {
public:
GetAllCookiesForURLWithOptionsTask(
CookieMonster* cookie_monster,
const GURL& url,
const CookieOptions& options,
const CookieMonster::GetCookieListCallback& callback)
: CookieMonsterTask(cookie_monster),
url_(url),
options_(options),
callback_(callback) {
}
// CookieMonster::CookieMonsterTask:
virtual void Run() OVERRIDE;
protected:
virtual ~GetAllCookiesForURLWithOptionsTask() {}
private:
GURL url_;
CookieOptions options_;
CookieMonster::GetCookieListCallback callback_;
DISALLOW_COPY_AND_ASSIGN(GetAllCookiesForURLWithOptionsTask);
};
void CookieMonster::GetAllCookiesForURLWithOptionsTask::Run() {
if (!callback_.is_null()) {
CookieList cookies = this->cookie_monster()->
GetAllCookiesForURLWithOptions(url_, options_);
this->InvokeCallback(base::Bind(&CookieMonster::GetCookieListCallback::Run,
base::Unretained(&callback_), cookies));
}
}
// Task class for DeleteAll call.
class CookieMonster::DeleteAllTask : public CookieMonster::CookieMonsterTask {
public:
DeleteAllTask(CookieMonster* cookie_monster,
const CookieMonster::DeleteCallback& callback)
: CookieMonsterTask(cookie_monster),
callback_(callback) {
}
// CookieMonster::CookieMonsterTask:
virtual void Run() OVERRIDE;
protected:
virtual ~DeleteAllTask() {}
private:
CookieMonster::DeleteCallback callback_;
DISALLOW_COPY_AND_ASSIGN(DeleteAllTask);
};
void CookieMonster::DeleteAllTask::Run() {
int num_deleted = this->cookie_monster()->DeleteAll(true);
if (!callback_.is_null()) {
this->InvokeCallback(base::Bind(&CookieMonster::DeleteCallback::Run,
base::Unretained(&callback_), num_deleted));
}
}
// Task class for DeleteAllCreatedBetween call.
class CookieMonster::DeleteAllCreatedBetweenTask
: public CookieMonster::CookieMonsterTask {
public:
DeleteAllCreatedBetweenTask(
CookieMonster* cookie_monster,
const Time& delete_begin,
const Time& delete_end,
const CookieMonster::DeleteCallback& callback)
: CookieMonsterTask(cookie_monster),
delete_begin_(delete_begin),
delete_end_(delete_end),
callback_(callback) {
}
// CookieMonster::CookieMonsterTask:
virtual void Run() OVERRIDE;
protected:
virtual ~DeleteAllCreatedBetweenTask() {}
private:
Time delete_begin_;
Time delete_end_;
CookieMonster::DeleteCallback callback_;
DISALLOW_COPY_AND_ASSIGN(DeleteAllCreatedBetweenTask);
};
void CookieMonster::DeleteAllCreatedBetweenTask::Run() {
int num_deleted = this->cookie_monster()->
DeleteAllCreatedBetween(delete_begin_, delete_end_);
if (!callback_.is_null()) {
this->InvokeCallback(base::Bind(&CookieMonster::DeleteCallback::Run,
base::Unretained(&callback_), num_deleted));
}
}
// Task class for DeleteAllForHost call.
class CookieMonster::DeleteAllForHostTask
: public CookieMonster::CookieMonsterTask {
public:
DeleteAllForHostTask(CookieMonster* cookie_monster,
const GURL& url,
const CookieMonster::DeleteCallback& callback)
: CookieMonsterTask(cookie_monster),
url_(url),
callback_(callback) {
}
// CookieMonster::CookieMonsterTask:
virtual void Run() OVERRIDE;
protected:
virtual ~DeleteAllForHostTask() {}
private:
GURL url_;
CookieMonster::DeleteCallback callback_;
DISALLOW_COPY_AND_ASSIGN(DeleteAllForHostTask);
};
void CookieMonster::DeleteAllForHostTask::Run() {
int num_deleted = this->cookie_monster()->DeleteAllForHost(url_);
if (!callback_.is_null()) {
this->InvokeCallback(base::Bind(&CookieMonster::DeleteCallback::Run,
base::Unretained(&callback_), num_deleted));
}
}
// Task class for DeleteCanonicalCookie call.
class CookieMonster::DeleteCanonicalCookieTask
: public CookieMonster::CookieMonsterTask {
public:
DeleteCanonicalCookieTask(
CookieMonster* cookie_monster,
const CanonicalCookie& cookie,
const CookieMonster::DeleteCookieCallback& callback)
: CookieMonsterTask(cookie_monster),
cookie_(cookie),
callback_(callback) {
}
// CookieMonster::CookieMonsterTask:
virtual void Run() OVERRIDE;
protected:
virtual ~DeleteCanonicalCookieTask() {}
private:
CanonicalCookie cookie_;
CookieMonster::DeleteCookieCallback callback_;
DISALLOW_COPY_AND_ASSIGN(DeleteCanonicalCookieTask);
};
void CookieMonster::DeleteCanonicalCookieTask::Run() {
bool result = this->cookie_monster()->DeleteCanonicalCookie(cookie_);
if (!callback_.is_null()) {
this->InvokeCallback(base::Bind(&CookieMonster::DeleteCookieCallback::Run,
base::Unretained(&callback_), result));
}
}
// Task class for SetCookieWithOptions call.
class CookieMonster::SetCookieWithOptionsTask
: public CookieMonster::CookieMonsterTask {
public:
SetCookieWithOptionsTask(CookieMonster* cookie_monster,
const GURL& url,
const std::string& cookie_line,
const CookieOptions& options,
const CookieMonster::SetCookiesCallback& callback)
: CookieMonsterTask(cookie_monster),
url_(url),
cookie_line_(cookie_line),
options_(options),
callback_(callback) {
}
// CookieMonster::CookieMonsterTask:
virtual void Run() OVERRIDE;
protected:
virtual ~SetCookieWithOptionsTask() {}
private:
GURL url_;
std::string cookie_line_;
CookieOptions options_;
CookieMonster::SetCookiesCallback callback_;
DISALLOW_COPY_AND_ASSIGN(SetCookieWithOptionsTask);
};
void CookieMonster::SetCookieWithOptionsTask::Run() {
bool result = this->cookie_monster()->
SetCookieWithOptions(url_, cookie_line_, options_);
if (!callback_.is_null()) {
this->InvokeCallback(base::Bind(&CookieMonster::SetCookiesCallback::Run,
base::Unretained(&callback_), result));
}
}
// Task class for GetCookiesWithOptions call.
class CookieMonster::GetCookiesWithOptionsTask
: public CookieMonster::CookieMonsterTask {
public:
GetCookiesWithOptionsTask(CookieMonster* cookie_monster,
const GURL& url,
const CookieOptions& options,
const CookieMonster::GetCookiesCallback& callback)
: CookieMonsterTask(cookie_monster),
url_(url),
options_(options),
callback_(callback) {
}
// CookieMonster::CookieMonsterTask:
virtual void Run() OVERRIDE;
protected:
virtual ~GetCookiesWithOptionsTask() {}
private:
GURL url_;
CookieOptions options_;
CookieMonster::GetCookiesCallback callback_;
DISALLOW_COPY_AND_ASSIGN(GetCookiesWithOptionsTask);
};
void CookieMonster::GetCookiesWithOptionsTask::Run() {
std::string cookie = this->cookie_monster()->
GetCookiesWithOptions(url_, options_);
if (!callback_.is_null()) {
this->InvokeCallback(base::Bind(&CookieMonster::GetCookiesCallback::Run,
base::Unretained(&callback_), cookie));
}
}
// Task class for GetCookiesWithInfo call.
class CookieMonster::GetCookiesWithInfoTask
: public CookieMonster::CookieMonsterTask {
public:
GetCookiesWithInfoTask(CookieMonster* cookie_monster,
const GURL& url,
const CookieOptions& options,
const CookieMonster::GetCookieInfoCallback& callback)
: CookieMonsterTask(cookie_monster),
url_(url),
options_(options),
callback_(callback) { }
// CookieMonster::CookieMonsterTask:
virtual void Run() OVERRIDE;
protected:
virtual ~GetCookiesWithInfoTask() {}
private:
GURL url_;
CookieOptions options_;
CookieMonster::GetCookieInfoCallback callback_;
DISALLOW_COPY_AND_ASSIGN(GetCookiesWithInfoTask);
};
void CookieMonster::GetCookiesWithInfoTask::Run() {
if (!callback_.is_null()) {
std::string cookie_line;
std::vector<CookieMonster::CookieInfo> cookie_infos;
this->cookie_monster()->
GetCookiesWithInfo(url_, options_, &cookie_line, &cookie_infos);
this->InvokeCallback(base::Bind(&CookieMonster::GetCookieInfoCallback::Run,
base::Unretained(&callback_),
cookie_line, cookie_infos));
}
}
// Task class for DeleteCookie call.
class CookieMonster::DeleteCookieTask
: public CookieMonster::CookieMonsterTask {
public:
DeleteCookieTask(CookieMonster* cookie_monster,
const GURL& url,
const std::string& cookie_name,
const base::Closure& callback)
: CookieMonsterTask(cookie_monster),
url_(url),
cookie_name_(cookie_name),
callback_(callback) { }
// CookieMonster::CookieMonsterTask:
virtual void Run() OVERRIDE;
protected:
virtual ~DeleteCookieTask() {}
private:
GURL url_;
std::string cookie_name_;
base::Closure callback_;
DISALLOW_COPY_AND_ASSIGN(DeleteCookieTask);
};
void CookieMonster::DeleteCookieTask::Run() {
this->cookie_monster()->DeleteCookie(url_, cookie_name_);
if (!callback_.is_null()) {
this->InvokeCallback(callback_);
}
}
// Task class for DeleteSessionCookies call.
class CookieMonster::DeleteSessionCookiesTask
: public CookieMonster::CookieMonsterTask {
public:
DeleteSessionCookiesTask(
CookieMonster* cookie_monster,
const CookieMonster::DeleteCallback& callback)
: CookieMonsterTask(cookie_monster),
callback_(callback) {
}
// CookieMonster::CookieMonsterTask:
virtual void Run() OVERRIDE;
protected:
virtual ~DeleteSessionCookiesTask() {}
private:
CookieMonster::DeleteCallback callback_;
DISALLOW_COPY_AND_ASSIGN(DeleteSessionCookiesTask);
};
void CookieMonster::DeleteSessionCookiesTask::Run() {
int num_deleted = this->cookie_monster()->DeleteSessionCookies();
if (!callback_.is_null()) {
this->InvokeCallback(base::Bind(&CookieMonster::DeleteCallback::Run,
base::Unretained(&callback_), num_deleted));
}
}
// Asynchronous CookieMonster API
void CookieMonster::SetCookieWithDetailsAsync(
const GURL& url, const std::string& name, const std::string& value,
const std::string& domain, const std::string& path,
const base::Time& expiration_time, bool secure, bool http_only,
const SetCookiesCallback& callback) {
scoped_refptr<SetCookieWithDetailsTask> task =
new SetCookieWithDetailsTask(this, url, name, value, domain, path,
expiration_time, secure, http_only,
callback);
DoCookieTaskForURL(task, url);
}
void CookieMonster::GetAllCookiesAsync(const GetCookieListCallback& callback) {
scoped_refptr<GetAllCookiesTask> task =
new GetAllCookiesTask(this, callback);
DoCookieTask(task);
}
void CookieMonster::GetAllCookiesForURLWithOptionsAsync(
const GURL& url,
const CookieOptions& options,
const GetCookieListCallback& callback) {
scoped_refptr<GetAllCookiesForURLWithOptionsTask> task =
new GetAllCookiesForURLWithOptionsTask(this, url, options, callback);
DoCookieTaskForURL(task, url);
}
void CookieMonster::GetAllCookiesForURLAsync(
const GURL& url, const GetCookieListCallback& callback) {
CookieOptions options;
options.set_include_httponly();
scoped_refptr<GetAllCookiesForURLWithOptionsTask> task =
new GetAllCookiesForURLWithOptionsTask(this, url, options, callback);
DoCookieTaskForURL(task, url);
}
void CookieMonster::DeleteAllAsync(const DeleteCallback& callback) {
scoped_refptr<DeleteAllTask> task =
new DeleteAllTask(this, callback);
DoCookieTask(task);
}
void CookieMonster::DeleteAllCreatedBetweenAsync(
const Time& delete_begin, const Time& delete_end,
const DeleteCallback& callback) {
scoped_refptr<DeleteAllCreatedBetweenTask> task =
new DeleteAllCreatedBetweenTask(this, delete_begin, delete_end,
callback);
DoCookieTask(task);
}
void CookieMonster::DeleteAllForHostAsync(
const GURL& url, const DeleteCallback& callback) {
scoped_refptr<DeleteAllForHostTask> task =
new DeleteAllForHostTask(this, url, callback);
DoCookieTaskForURL(task, url);
}
void CookieMonster::DeleteCanonicalCookieAsync(
const CanonicalCookie& cookie,
const DeleteCookieCallback& callback) {
scoped_refptr<DeleteCanonicalCookieTask> task =
new DeleteCanonicalCookieTask(this, cookie, callback);
DoCookieTask(task);
}
void CookieMonster::SetCookieWithOptionsAsync(
const GURL& url,
const std::string& cookie_line,
const CookieOptions& options,
const SetCookiesCallback& callback) {
scoped_refptr<SetCookieWithOptionsTask> task =
new SetCookieWithOptionsTask(this, url, cookie_line, options, callback);
DoCookieTaskForURL(task, url);
}
void CookieMonster::GetCookiesWithOptionsAsync(
const GURL& url,
const CookieOptions& options,
const GetCookiesCallback& callback) {
scoped_refptr<GetCookiesWithOptionsTask> task =
new GetCookiesWithOptionsTask(this, url, options, callback);
DoCookieTaskForURL(task, url);
}
void CookieMonster::GetCookiesWithInfoAsync(
const GURL& url,
const CookieOptions& options,
const GetCookieInfoCallback& callback) {
scoped_refptr<GetCookiesWithInfoTask> task =
new GetCookiesWithInfoTask(this, url, options, callback);
DoCookieTaskForURL(task, url);
}
void CookieMonster::DeleteCookieAsync(const GURL& url,
const std::string& cookie_name,
const base::Closure& callback) {
scoped_refptr<DeleteCookieTask> task =
new DeleteCookieTask(this, url, cookie_name, callback);
DoCookieTaskForURL(task, url);
}
void CookieMonster::DeleteSessionCookiesAsync(
const CookieStore::DeleteCallback& callback) {
scoped_refptr<DeleteSessionCookiesTask> task =
new DeleteSessionCookiesTask(this, callback);
DoCookieTask(task);
}
void CookieMonster::DoCookieTask(
const scoped_refptr<CookieMonsterTask>& task_item) {
{
base::AutoLock autolock(lock_);
InitIfNecessary();
if (!loaded_) {
queue_.push(task_item);
return;
}
}
task_item->Run();
}
void CookieMonster::DoCookieTaskForURL(
const scoped_refptr<CookieMonsterTask>& task_item,
const GURL& url) {
{
base::AutoLock autolock(lock_);
InitIfNecessary();
// If cookies for the requested domain key (eTLD+1) have been loaded from DB
// then run the task, otherwise load from DB.
if (!loaded_) {
// Checks if the domain key has been loaded.
std::string key(cookie_util::GetEffectiveDomain(url.scheme(),
url.host()));
if (keys_loaded_.find(key) == keys_loaded_.end()) {
std::map<std::string, std::deque<scoped_refptr<CookieMonsterTask> > >
::iterator it = tasks_queued_.find(key);
if (it == tasks_queued_.end()) {
store_->LoadCookiesForKey(key,
base::Bind(&CookieMonster::OnKeyLoaded, this, key));
it = tasks_queued_.insert(std::make_pair(key,
std::deque<scoped_refptr<CookieMonsterTask> >())).first;
}
it->second.push_back(task_item);
return;
}
}
}
task_item->Run();
}
bool CookieMonster::SetCookieWithDetails(
const GURL& url, const std::string& name, const std::string& value,
const std::string& domain, const std::string& path,
const base::Time& expiration_time, bool secure, bool http_only) {
base::AutoLock autolock(lock_);
if (!HasCookieableScheme(url))
return false;
Time creation_time = CurrentTime();
last_time_seen_ = creation_time;
// TODO(abarth): Take these values as parameters.
std::string mac_key;
std::string mac_algorithm;
scoped_ptr<CanonicalCookie> cc;
cc.reset(CanonicalCookie::Create(
url, name, value, domain, path,
mac_key, mac_algorithm,
creation_time, expiration_time,
secure, http_only));
if (!cc.get())
return false;
CookieOptions options;
options.set_include_httponly();
return SetCanonicalCookie(&cc, creation_time, options);
}
bool CookieMonster::InitializeFrom(const CookieList& list) {
base::AutoLock autolock(lock_);
InitIfNecessary();
for (net::CookieList::const_iterator iter = list.begin();
iter != list.end(); ++iter) {
scoped_ptr<CanonicalCookie> cookie(new CanonicalCookie(*iter));
net::CookieOptions options;
options.set_include_httponly();
if (!SetCanonicalCookie(&cookie, cookie->CreationDate(), options))
return false;
}
return true;
}
CookieList CookieMonster::GetAllCookies() {
base::AutoLock autolock(lock_);
// This function is being called to scrape the cookie list for management UI
// or similar. We shouldn't show expired cookies in this list since it will
// just be confusing to users, and this function is called rarely enough (and
// is already slow enough) that it's OK to take the time to garbage collect
// the expired cookies now.
//
// Note that this does not prune cookies to be below our limits (if we've
// exceeded them) the way that calling GarbageCollect() would.
GarbageCollectExpired(Time::Now(),
CookieMapItPair(cookies_.begin(), cookies_.end()),
NULL);
// Copy the CanonicalCookie pointers from the map so that we can use the same
// sorter as elsewhere, then copy the result out.
std::vector<CanonicalCookie*> cookie_ptrs;
cookie_ptrs.reserve(cookies_.size());
for (CookieMap::iterator it = cookies_.begin(); it != cookies_.end(); ++it)
cookie_ptrs.push_back(it->second);
std::sort(cookie_ptrs.begin(), cookie_ptrs.end(), CookieSorter);
CookieList cookie_list;
cookie_list.reserve(cookie_ptrs.size());
for (std::vector<CanonicalCookie*>::const_iterator it = cookie_ptrs.begin();
it != cookie_ptrs.end(); ++it)
cookie_list.push_back(**it);
return cookie_list;
}
CookieList CookieMonster::GetAllCookiesForURLWithOptions(
const GURL& url,
const CookieOptions& options) {
base::AutoLock autolock(lock_);
std::vector<CanonicalCookie*> cookie_ptrs;
FindCookiesForHostAndDomain(url, options, false, &cookie_ptrs);
std::sort(cookie_ptrs.begin(), cookie_ptrs.end(), CookieSorter);
CookieList cookies;
for (std::vector<CanonicalCookie*>::const_iterator it = cookie_ptrs.begin();
it != cookie_ptrs.end(); it++)
cookies.push_back(**it);
return cookies;
}
CookieList CookieMonster::GetAllCookiesForURL(const GURL& url) {
CookieOptions options;
options.set_include_httponly();
return GetAllCookiesForURLWithOptions(url, options);
}
int CookieMonster::DeleteAll(bool sync_to_store) {
base::AutoLock autolock(lock_);
int num_deleted = 0;
for (CookieMap::iterator it = cookies_.begin(); it != cookies_.end();) {
CookieMap::iterator curit = it;
++it;
InternalDeleteCookie(curit, sync_to_store,
sync_to_store ? DELETE_COOKIE_EXPLICIT :
DELETE_COOKIE_DONT_RECORD /* Destruction. */);
++num_deleted;
}
return num_deleted;
}
int CookieMonster::DeleteAllCreatedBetween(const Time& delete_begin,
const Time& delete_end) {
base::AutoLock autolock(lock_);
int num_deleted = 0;
for (CookieMap::iterator it = cookies_.begin(); it != cookies_.end();) {
CookieMap::iterator curit = it;
CanonicalCookie* cc = curit->second;
++it;
if (cc->CreationDate() >= delete_begin &&
(delete_end.is_null() || cc->CreationDate() < delete_end)) {
InternalDeleteCookie(curit,
true, /*sync_to_store*/
DELETE_COOKIE_EXPLICIT);
++num_deleted;
}
}
return num_deleted;
}
int CookieMonster::DeleteAllForHost(const GURL& url) {
base::AutoLock autolock(lock_);
if (!HasCookieableScheme(url))
return 0;
const std::string host(url.host());
// We store host cookies in the store by their canonical host name;
// domain cookies are stored with a leading ".". So this is a pretty
// simple lookup and per-cookie delete.
int num_deleted = 0;
for (CookieMapItPair its = cookies_.equal_range(GetKey(host));
its.first != its.second;) {
CookieMap::iterator curit = its.first;
++its.first;
const CanonicalCookie* const cc = curit->second;
// Delete only on a match as a host cookie.
if (cc->IsHostCookie() && cc->IsDomainMatch(host)) {
num_deleted++;
InternalDeleteCookie(curit, true, DELETE_COOKIE_EXPLICIT);
}
}
return num_deleted;
}
bool CookieMonster::DeleteCanonicalCookie(const CanonicalCookie& cookie) {
base::AutoLock autolock(lock_);
for (CookieMapItPair its = cookies_.equal_range(GetKey(cookie.Domain()));
its.first != its.second; ++its.first) {
// The creation date acts as our unique index...
if (its.first->second->CreationDate() == cookie.CreationDate()) {
InternalDeleteCookie(its.first, true, DELETE_COOKIE_EXPLICIT);
return true;
}
}
return false;
}
void CookieMonster::SetCookieableSchemes(
const char* schemes[], size_t num_schemes) {
base::AutoLock autolock(lock_);
// Cookieable Schemes must be set before first use of function.
DCHECK(!initialized_);
cookieable_schemes_.clear();
cookieable_schemes_.insert(cookieable_schemes_.end(),
schemes, schemes + num_schemes);
}
void CookieMonster::SetEnableFileScheme(bool accept) {
// This assumes "file" is always at the end of the array. See the comment
// above kDefaultCookieableSchemes.
int num_schemes = accept ? kDefaultCookieableSchemesCount :
kDefaultCookieableSchemesCount - 1;
SetCookieableSchemes(kDefaultCookieableSchemes, num_schemes);
}
void CookieMonster::SetKeepExpiredCookies() {
keep_expired_cookies_ = true;
}
// static
void CookieMonster::EnableFileScheme() {
default_enable_file_scheme_ = true;
}
void CookieMonster::FlushStore(const base::Closure& callback) {
base::AutoLock autolock(lock_);
if (initialized_ && store_)
store_->Flush(callback);
else if (!callback.is_null())
MessageLoop::current()->PostTask(FROM_HERE, callback);
}
bool CookieMonster::SetCookieWithOptions(const GURL& url,
const std::string& cookie_line,
const CookieOptions& options) {
base::AutoLock autolock(lock_);
if (!HasCookieableScheme(url)) {
return false;
}
return SetCookieWithCreationTimeAndOptions(url, cookie_line, Time(), options);
}
std::string CookieMonster::GetCookiesWithOptions(const GURL& url,
const CookieOptions& options) {
base::AutoLock autolock(lock_);
if (!HasCookieableScheme(url))
return std::string();
TimeTicks start_time(TimeTicks::Now());
std::vector<CanonicalCookie*> cookies;
FindCookiesForHostAndDomain(url, options, true, &cookies);
std::sort(cookies.begin(), cookies.end(), CookieSorter);
std::string cookie_line = BuildCookieLine(cookies);
histogram_time_get_->AddTime(TimeTicks::Now() - start_time);
VLOG(kVlogGetCookies) << "GetCookies() result: " << cookie_line;
return cookie_line;
}
void CookieMonster::GetCookiesWithInfo(const GURL& url,
const CookieOptions& options,
std::string* cookie_line,
std::vector<CookieInfo>* cookie_infos) {
DCHECK(cookie_line->empty());
DCHECK(cookie_infos->empty());
base::AutoLock autolock(lock_);
if (!HasCookieableScheme(url))
return;
TimeTicks start_time(TimeTicks::Now());
std::vector<CanonicalCookie*> cookies;
FindCookiesForHostAndDomain(url, options, true, &cookies);
std::sort(cookies.begin(), cookies.end(), CookieSorter);
*cookie_line = BuildCookieLine(cookies);
histogram_time_get_->AddTime(TimeTicks::Now() - start_time);
TimeTicks mac_start_time = TimeTicks::Now();
BuildCookieInfoList(cookies, cookie_infos);
histogram_time_mac_->AddTime(TimeTicks::Now() - mac_start_time);
}
void CookieMonster::DeleteCookie(const GURL& url,
const std::string& cookie_name) {
base::AutoLock autolock(lock_);
if (!HasCookieableScheme(url))
return;
CookieOptions options;
options.set_include_httponly();
// Get the cookies for this host and its domain(s).
std::vector<CanonicalCookie*> cookies;
FindCookiesForHostAndDomain(url, options, true, &cookies);
std::set<CanonicalCookie*> matching_cookies;
for (std::vector<CanonicalCookie*>::const_iterator it = cookies.begin();
it != cookies.end(); ++it) {
if ((*it)->Name() != cookie_name)
continue;
if (url.path().find((*it)->Path()))
continue;
matching_cookies.insert(*it);
}
for (CookieMap::iterator it = cookies_.begin(); it != cookies_.end();) {
CookieMap::iterator curit = it;
++it;
if (matching_cookies.find(curit->second) != matching_cookies.end()) {
InternalDeleteCookie(curit, true, DELETE_COOKIE_EXPLICIT);
}
}
}
int CookieMonster::DeleteSessionCookies() {
base::AutoLock autolock(lock_);
int num_deleted = 0;
for (CookieMap::iterator it = cookies_.begin(); it != cookies_.end();) {
CookieMap::iterator curit = it;
CanonicalCookie* cc = curit->second;
++it;
if (!cc->IsPersistent()) {
InternalDeleteCookie(curit,
true, /*sync_to_store*/
DELETE_COOKIE_EXPIRED);
++num_deleted;
}
}
return num_deleted;
}
CookieMonster* CookieMonster::GetCookieMonster() {
return this;
}
void CookieMonster::SetPersistSessionCookies(bool persist_session_cookies) {
// This function must be called before the CookieMonster is used.
DCHECK(!initialized_);
persist_session_cookies_ = persist_session_cookies;
}
void CookieMonster::SetForceKeepSessionState() {
if (store_) {
store_->SetForceKeepSessionState();
}
}
CookieMonster::~CookieMonster() {
DeleteAll(false);
}
bool CookieMonster::SetCookieWithCreationTime(const GURL& url,
const std::string& cookie_line,
const base::Time& creation_time) {
DCHECK(!store_) << "This method is only to be used by unit-tests.";
base::AutoLock autolock(lock_);
if (!HasCookieableScheme(url)) {
return false;
}
InitIfNecessary();
return SetCookieWithCreationTimeAndOptions(url, cookie_line, creation_time,
CookieOptions());
}
void CookieMonster::InitStore() {
DCHECK(store_) << "Store must exist to initialize";
// We bind in the current time so that we can report the wall-clock time for
// loading cookies.
store_->Load(base::Bind(&CookieMonster::OnLoaded, this, TimeTicks::Now()));
}
void CookieMonster::OnLoaded(TimeTicks beginning_time,
const std::vector<CanonicalCookie*>& cookies) {
StoreLoadedCookies(cookies);
histogram_time_blocked_on_load_->AddTime(TimeTicks::Now() - beginning_time);
// Invoke the task queue of cookie request.
InvokeQueue();
}
void CookieMonster::OnKeyLoaded(const std::string& key,
const std::vector<CanonicalCookie*>& cookies) {
// This function does its own separate locking.
StoreLoadedCookies(cookies);
std::deque<scoped_refptr<CookieMonsterTask> > tasks_queued;
{
base::AutoLock autolock(lock_);
keys_loaded_.insert(key);
std::map<std::string, std::deque<scoped_refptr<CookieMonsterTask> > >
::iterator it = tasks_queued_.find(key);
if (it == tasks_queued_.end())
return;
it->second.swap(tasks_queued);
tasks_queued_.erase(it);
}
while (!tasks_queued.empty()) {
scoped_refptr<CookieMonsterTask> task = tasks_queued.front();
task->Run();
tasks_queued.pop_front();
}
}
void CookieMonster::StoreLoadedCookies(
const std::vector<CanonicalCookie*>& cookies) {
// Initialize the store and sync in any saved persistent cookies. We don't
// care if it's expired, insert it so it can be garbage collected, removed,
// and sync'd.
base::AutoLock autolock(lock_);
for (std::vector<CanonicalCookie*>::const_iterator it = cookies.begin();
it != cookies.end(); ++it) {
int64 cookie_creation_time = (*it)->CreationDate().ToInternalValue();
if (creation_times_.insert(cookie_creation_time).second) {
InternalInsertCookie(GetKey((*it)->Domain()), *it, false);
const Time cookie_access_time((*it)->LastAccessDate());
if (earliest_access_time_.is_null() ||
cookie_access_time < earliest_access_time_)
earliest_access_time_ = cookie_access_time;
} else {
LOG(ERROR) << base::StringPrintf("Found cookies with duplicate creation "
"times in backing store: "
"{name='%s', domain='%s', path='%s'}",
(*it)->Name().c_str(),
(*it)->Domain().c_str(),
(*it)->Path().c_str());
// We've been given ownership of the cookie and are throwing it
// away; reclaim the space.
delete (*it);
}
}
// After importing cookies from the PersistentCookieStore, verify that
// none of our other constraints are violated.
// In particular, the backing store might have given us duplicate cookies.
// This method could be called multiple times due to priority loading, thus
// cookies loaded in previous runs will be validated again, but this is OK
// since they are expected to be much fewer than total DB.
EnsureCookiesMapIsValid();
}
void CookieMonster::InvokeQueue() {
while (true) {
scoped_refptr<CookieMonsterTask> request_task;
{
base::AutoLock autolock(lock_);
if (queue_.empty()) {
loaded_ = true;
creation_times_.clear();
keys_loaded_.clear();
break;
}
request_task = queue_.front();
queue_.pop();
}
request_task->Run();
}
}
void CookieMonster::EnsureCookiesMapIsValid() {
lock_.AssertAcquired();
int num_duplicates_trimmed = 0;
// Iterate through all the of the cookies, grouped by host.
CookieMap::iterator prev_range_end = cookies_.begin();
while (prev_range_end != cookies_.end()) {
CookieMap::iterator cur_range_begin = prev_range_end;
const std::string key = cur_range_begin->first; // Keep a copy.
CookieMap::iterator cur_range_end = cookies_.upper_bound(key);
prev_range_end = cur_range_end;
// Ensure no equivalent cookies for this host.
num_duplicates_trimmed +=
TrimDuplicateCookiesForKey(key, cur_range_begin, cur_range_end);
}
// Record how many duplicates were found in the database.
// See InitializeHistograms() for details.
histogram_cookie_deletion_cause_->Add(num_duplicates_trimmed);
}
int CookieMonster::TrimDuplicateCookiesForKey(
const std::string& key,
CookieMap::iterator begin,
CookieMap::iterator end) {
lock_.AssertAcquired();
// Set of cookies ordered by creation time.
typedef std::set<CookieMap::iterator, OrderByCreationTimeDesc> CookieSet;
// Helper map we populate to find the duplicates.
typedef std::map<CookieSignature, CookieSet> EquivalenceMap;
EquivalenceMap equivalent_cookies;
// The number of duplicate cookies that have been found.
int num_duplicates = 0;
// Iterate through all of the cookies in our range, and insert them into
// the equivalence map.
for (CookieMap::iterator it = begin; it != end; ++it) {
DCHECK_EQ(key, it->first);
CanonicalCookie* cookie = it->second;
CookieSignature signature(cookie->Name(), cookie->Domain(),
cookie->Path());
CookieSet& set = equivalent_cookies[signature];
// We found a duplicate!
if (!set.empty())
num_duplicates++;
// We save the iterator into |cookies_| rather than the actual cookie
// pointer, since we may need to delete it later.
bool insert_success = set.insert(it).second;
DCHECK(insert_success) <<
"Duplicate creation times found in duplicate cookie name scan.";
}
// If there were no duplicates, we are done!
if (num_duplicates == 0)
return 0;
// Make sure we find everything below that we did above.
int num_duplicates_found = 0;
// Otherwise, delete all the duplicate cookies, both from our in-memory store
// and from the backing store.
for (EquivalenceMap::iterator it = equivalent_cookies.begin();
it != equivalent_cookies.end();
++it) {
const CookieSignature& signature = it->first;
CookieSet& dupes = it->second;
if (dupes.size() <= 1)
continue; // This cookiename/path has no duplicates.
num_duplicates_found += dupes.size() - 1;
// Since |dups| is sorted by creation time (descending), the first cookie
// is the most recent one, so we will keep it. The rest are duplicates.
dupes.erase(dupes.begin());
LOG(ERROR) << base::StringPrintf(
"Found %d duplicate cookies for host='%s', "
"with {name='%s', domain='%s', path='%s'}",
static_cast<int>(dupes.size()),
key.c_str(),
signature.name.c_str(),
signature.domain.c_str(),
signature.path.c_str());
// Remove all the cookies identified by |dupes|. It is valid to delete our
// list of iterators one at a time, since |cookies_| is a multimap (they
// don't invalidate existing iterators following deletion).
for (CookieSet::iterator dupes_it = dupes.begin();
dupes_it != dupes.end();
++dupes_it) {
InternalDeleteCookie(*dupes_it, true,
DELETE_COOKIE_DUPLICATE_IN_BACKING_STORE);
}
}
DCHECK_EQ(num_duplicates, num_duplicates_found);
return num_duplicates;
}
// Note: file must be the last scheme.
const char* CookieMonster::kDefaultCookieableSchemes[] =
{ "http", "https", "file" };
const int CookieMonster::kDefaultCookieableSchemesCount =
arraysize(CookieMonster::kDefaultCookieableSchemes);
void CookieMonster::SetDefaultCookieableSchemes() {
int num_schemes = default_enable_file_scheme_ ?
kDefaultCookieableSchemesCount : kDefaultCookieableSchemesCount - 1;
SetCookieableSchemes(kDefaultCookieableSchemes, num_schemes);
}
void CookieMonster::FindCookiesForHostAndDomain(
const GURL& url,
const CookieOptions& options,
bool update_access_time,
std::vector<CanonicalCookie*>* cookies) {
lock_.AssertAcquired();
const Time current_time(CurrentTime());
// Probe to save statistics relatively frequently. We do it here rather
// than in the set path as many websites won't set cookies, and we
// want to collect statistics whenever the browser's being used.
RecordPeriodicStats(current_time);
// Can just dispatch to FindCookiesForKey
const std::string key(GetKey(url.host()));
FindCookiesForKey(key, url, options, current_time,
update_access_time, cookies);
}
void CookieMonster::FindCookiesForKey(
const std::string& key,
const GURL& url,
const CookieOptions& options,
const Time& current,
bool update_access_time,
std::vector<CanonicalCookie*>* cookies) {
lock_.AssertAcquired();
for (CookieMapItPair its = cookies_.equal_range(key);
its.first != its.second; ) {
CookieMap::iterator curit = its.first;
CanonicalCookie* cc = curit->second;
++its.first;
// If the cookie is expired, delete it.
if (cc->IsExpired(current) && !keep_expired_cookies_) {
InternalDeleteCookie(curit, true, DELETE_COOKIE_EXPIRED);
continue;
}
// Filter out cookies that should not be included for a request to the
// given |url|. HTTP only cookies are filtered depending on the passed
// cookie |options|.
if (!cc->IncludeForRequestURL(url, options))
continue;
// Add this cookie to the set of matching cookies. Update the access
// time if we've been requested to do so.
if (update_access_time) {
InternalUpdateCookieAccessTime(cc, current);
}
cookies->push_back(cc);
}
}
bool CookieMonster::DeleteAnyEquivalentCookie(const std::string& key,
const CanonicalCookie& ecc,
bool skip_httponly,
bool already_expired) {
lock_.AssertAcquired();
bool found_equivalent_cookie = false;
bool skipped_httponly = false;
for (CookieMapItPair its = cookies_.equal_range(key);
its.first != its.second; ) {
CookieMap::iterator curit = its.first;
CanonicalCookie* cc = curit->second;
++its.first;
if (ecc.IsEquivalent(*cc)) {
// We should never have more than one equivalent cookie, since they should
// overwrite each other.
CHECK(!found_equivalent_cookie) <<
"Duplicate equivalent cookies found, cookie store is corrupted.";
if (skip_httponly && cc->IsHttpOnly()) {
skipped_httponly = true;
} else {
InternalDeleteCookie(curit, true, already_expired ?
DELETE_COOKIE_EXPIRED_OVERWRITE : DELETE_COOKIE_OVERWRITE);
}
found_equivalent_cookie = true;
}
}
return skipped_httponly;
}
void CookieMonster::InternalInsertCookie(const std::string& key,
CanonicalCookie* cc,
bool sync_to_store) {
lock_.AssertAcquired();
if ((cc->IsPersistent() || persist_session_cookies_) &&
store_ && sync_to_store)
store_->AddCookie(*cc);
cookies_.insert(CookieMap::value_type(key, cc));
if (delegate_.get()) {
delegate_->OnCookieChanged(
*cc, false, CookieMonster::Delegate::CHANGE_COOKIE_EXPLICIT);
}
}
bool CookieMonster::SetCookieWithCreationTimeAndOptions(
const GURL& url,
const std::string& cookie_line,
const Time& creation_time_or_null,
const CookieOptions& options) {
lock_.AssertAcquired();
VLOG(kVlogSetCookies) << "SetCookie() line: " << cookie_line;
Time creation_time = creation_time_or_null;
if (creation_time.is_null()) {
creation_time = CurrentTime();
last_time_seen_ = creation_time;
}
scoped_ptr<CanonicalCookie> cc(
CanonicalCookie::Create(url, cookie_line, creation_time, options));
if (!cc.get()) {
VLOG(kVlogSetCookies) << "WARNING: Failed to allocate CanonicalCookie";
return false;
}
return SetCanonicalCookie(&cc, creation_time, options);
}
bool CookieMonster::SetCanonicalCookie(scoped_ptr<CanonicalCookie>* cc,
const Time& creation_time,
const CookieOptions& options) {
const std::string key(GetKey((*cc)->Domain()));
bool already_expired = (*cc)->IsExpired(creation_time);
if (DeleteAnyEquivalentCookie(key, **cc, options.exclude_httponly(),
already_expired)) {
VLOG(kVlogSetCookies) << "SetCookie() not clobbering httponly cookie";
return false;
}
VLOG(kVlogSetCookies) << "SetCookie() key: " << key << " cc: "
<< (*cc)->DebugString();
// Realize that we might be setting an expired cookie, and the only point
// was to delete the cookie which we've already done.
if (!already_expired || keep_expired_cookies_) {
// See InitializeHistograms() for details.
if ((*cc)->IsPersistent()) {
histogram_expiration_duration_minutes_->Add(
((*cc)->ExpiryDate() - creation_time).InMinutes());
}
InternalInsertCookie(key, cc->release(), true);
}
// We assume that hopefully setting a cookie will be less common than
// querying a cookie. Since setting a cookie can put us over our limits,
// make sure that we garbage collect... We can also make the assumption that
// if a cookie was set, in the common case it will be used soon after,
// and we will purge the expired cookies in GetCookies().
GarbageCollect(creation_time, key);
return true;
}
void CookieMonster::InternalUpdateCookieAccessTime(CanonicalCookie* cc,
const Time& current) {
lock_.AssertAcquired();
// Based off the Mozilla code. When a cookie has been accessed recently,
// don't bother updating its access time again. This reduces the number of
// updates we do during pageload, which in turn reduces the chance our storage
// backend will hit its batch thresholds and be forced to update.
if ((current - cc->LastAccessDate()) < last_access_threshold_)
return;
// See InitializeHistograms() for details.
histogram_between_access_interval_minutes_->Add(
(current - cc->LastAccessDate()).InMinutes());
cc->SetLastAccessDate(current);
if ((cc->IsPersistent() || persist_session_cookies_) && store_)
store_->UpdateCookieAccessTime(*cc);
}
void CookieMonster::InternalDeleteCookie(CookieMap::iterator it,
bool sync_to_store,
DeletionCause deletion_cause) {
lock_.AssertAcquired();
// Ideally, this would be asserted up where we define ChangeCauseMapping,
// but DeletionCause's visibility (or lack thereof) forces us to make
// this check here.
COMPILE_ASSERT(arraysize(ChangeCauseMapping) == DELETE_COOKIE_LAST_ENTRY + 1,
ChangeCauseMapping_size_not_eq_DeletionCause_enum_size);
// See InitializeHistograms() for details.
if (deletion_cause != DELETE_COOKIE_DONT_RECORD)
histogram_cookie_deletion_cause_->Add(deletion_cause);
CanonicalCookie* cc = it->second;
VLOG(kVlogSetCookies) << "InternalDeleteCookie() cc: " << cc->DebugString();
if ((cc->IsPersistent() || persist_session_cookies_)
&& store_ && sync_to_store)
store_->DeleteCookie(*cc);
if (delegate_.get()) {
ChangeCausePair mapping = ChangeCauseMapping[deletion_cause];
if (mapping.notify)
delegate_->OnCookieChanged(*cc, true, mapping.cause);
}
cookies_.erase(it);
delete cc;
}
// Domain expiry behavior is unchanged by key/expiry scheme (the
// meaning of the key is different, but that's not visible to this
// routine).
int CookieMonster::GarbageCollect(const Time& current,
const std::string& key) {
lock_.AssertAcquired();
int num_deleted = 0;
// Collect garbage for this key.
if (cookies_.count(key) > kDomainMaxCookies) {
VLOG(kVlogGarbageCollection) << "GarbageCollect() key: " << key;
std::vector<CookieMap::iterator> cookie_its;
num_deleted += GarbageCollectExpired(
current, cookies_.equal_range(key), &cookie_its);
base::Time oldest_removed;
if (FindLeastRecentlyAccessed(kDomainMaxCookies, kDomainPurgeCookies,
&oldest_removed, &cookie_its)) {
// Delete in two passes so we can figure out what we're nuking
// that would be kept at the global level.
int num_subject_to_global_purge =
GarbageCollectDeleteList(
current,
Time::Now() - TimeDelta::FromDays(kSafeFromGlobalPurgeDays),
DELETE_COOKIE_EVICTED_DOMAIN_PRE_SAFE,
cookie_its);
num_deleted += num_subject_to_global_purge;
// Correct because FindLeastRecentlyAccessed returns a sorted list.
cookie_its.erase(cookie_its.begin(),
cookie_its.begin() + num_subject_to_global_purge);
num_deleted +=
GarbageCollectDeleteList(
current,
Time(),
DELETE_COOKIE_EVICTED_DOMAIN_POST_SAFE,
cookie_its);
}
}
// Collect garbage for everything. With firefox style we want to
// preserve cookies touched in kSafeFromGlobalPurgeDays, otherwise
// not.
if (cookies_.size() > kMaxCookies &&
(earliest_access_time_ <
Time::Now() - TimeDelta::FromDays(kSafeFromGlobalPurgeDays))) {
VLOG(kVlogGarbageCollection) << "GarbageCollect() everything";
std::vector<CookieMap::iterator> cookie_its;
base::Time oldest_left;
num_deleted += GarbageCollectExpired(
current, CookieMapItPair(cookies_.begin(), cookies_.end()),
&cookie_its);
if (FindLeastRecentlyAccessed(kMaxCookies, kPurgeCookies,
&oldest_left, &cookie_its)) {
Time oldest_safe_cookie(
(Time::Now() - TimeDelta::FromDays(kSafeFromGlobalPurgeDays)));
int num_evicted = GarbageCollectDeleteList(
current,
oldest_safe_cookie,
DELETE_COOKIE_EVICTED_GLOBAL,
cookie_its);
// If no cookies were preserved by the time limit, the global last
// access is set to the value returned from FindLeastRecentlyAccessed.
// If the time limit preserved some cookies, we use the last access of
// the oldest preserved cookie.
if (num_evicted == static_cast<int>(cookie_its.size())) {
earliest_access_time_ = oldest_left;
} else {
earliest_access_time_ =
(*(cookie_its.begin() + num_evicted))->second->LastAccessDate();
}
num_deleted += num_evicted;
}
}
return num_deleted;
}
int CookieMonster::GarbageCollectExpired(
const Time& current,
const CookieMapItPair& itpair,
std::vector<CookieMap::iterator>* cookie_its) {
if (keep_expired_cookies_)
return 0;
lock_.AssertAcquired();
int num_deleted = 0;
for (CookieMap::iterator it = itpair.first, end = itpair.second; it != end;) {
CookieMap::iterator curit = it;
++it;
if (curit->second->IsExpired(current)) {
InternalDeleteCookie(curit, true, DELETE_COOKIE_EXPIRED);
++num_deleted;
} else if (cookie_its) {
cookie_its->push_back(curit);
}
}
return num_deleted;
}
int CookieMonster::GarbageCollectDeleteList(
const Time& current,
const Time& keep_accessed_after,
DeletionCause cause,
std::vector<CookieMap::iterator>& cookie_its) {
int num_deleted = 0;
for (std::vector<CookieMap::iterator>::iterator it = cookie_its.begin();
it != cookie_its.end(); it++) {
if (keep_accessed_after.is_null() ||
(*it)->second->LastAccessDate() < keep_accessed_after) {
histogram_evicted_last_access_minutes_->Add(
(current - (*it)->second->LastAccessDate()).InMinutes());
InternalDeleteCookie((*it), true, cause);
num_deleted++;
}
}
return num_deleted;
}
// A wrapper around RegistryControlledDomainService::GetDomainAndRegistry
// to make clear we're creating a key for our local map. Here and
// in FindCookiesForHostAndDomain() are the only two places where
// we need to conditionalize based on key type.
//
// Note that this key algorithm explicitly ignores the scheme. This is
// because when we're entering cookies into the map from the backing store,
// we in general won't have the scheme at that point.
// In practical terms, this means that file cookies will be stored
// in the map either by an empty string or by UNC name (and will be
// limited by kMaxCookiesPerHost), and extension cookies will be stored
// based on the single extension id, as the extension id won't have the
// form of a DNS host and hence GetKey() will return it unchanged.
//
// Arguably the right thing to do here is to make the key
// algorithm dependent on the scheme, and make sure that the scheme is
// available everywhere the key must be obtained (specfically at backing
// store load time). This would require either changing the backing store
// database schema to include the scheme (far more trouble than it's worth), or
// separating out file cookies into their own CookieMonster instance and
// thus restricting each scheme to a single cookie monster (which might
// be worth it, but is still too much trouble to solve what is currently a
// non-problem).
std::string CookieMonster::GetKey(const std::string& domain) const {
std::string effective_domain(
RegistryControlledDomainService::GetDomainAndRegistry(domain));
if (effective_domain.empty())
effective_domain = domain;
if (!effective_domain.empty() && effective_domain[0] == '.')
return effective_domain.substr(1);
return effective_domain;
}
bool CookieMonster::IsCookieableScheme(const std::string& scheme) {
base::AutoLock autolock(lock_);
return std::find(cookieable_schemes_.begin(), cookieable_schemes_.end(),
scheme) != cookieable_schemes_.end();
}
bool CookieMonster::HasCookieableScheme(const GURL& url) {
lock_.AssertAcquired();
// Make sure the request is on a cookie-able url scheme.
for (size_t i = 0; i < cookieable_schemes_.size(); ++i) {
// We matched a scheme.
if (url.SchemeIs(cookieable_schemes_[i].c_str())) {
// We've matched a supported scheme.
return true;
}
}
// The scheme didn't match any in our whitelist.
VLOG(kVlogPerCookieMonster) << "WARNING: Unsupported cookie scheme: "
<< url.scheme();
return false;
}
// Test to see if stats should be recorded, and record them if so.
// The goal here is to get sampling for the average browser-hour of
// activity. We won't take samples when the web isn't being surfed,
// and when the web is being surfed, we'll take samples about every
// kRecordStatisticsIntervalSeconds.
// last_statistic_record_time_ is initialized to Now() rather than null
// in the constructor so that we won't take statistics right after
// startup, to avoid bias from browsers that are started but not used.
void CookieMonster::RecordPeriodicStats(const base::Time& current_time) {
const base::TimeDelta kRecordStatisticsIntervalTime(
base::TimeDelta::FromSeconds(kRecordStatisticsIntervalSeconds));
// If we've taken statistics recently, return.
if (current_time - last_statistic_record_time_ <=
kRecordStatisticsIntervalTime) {
return;
}
// See InitializeHistograms() for details.
histogram_count_->Add(cookies_.size());
// More detailed statistics on cookie counts at different granularities.
TimeTicks beginning_of_time(TimeTicks::Now());
for (CookieMap::const_iterator it_key = cookies_.begin();
it_key != cookies_.end(); ) {
const std::string& key(it_key->first);
int key_count = 0;
typedef std::map<std::string, unsigned int> DomainMap;
DomainMap domain_map;
CookieMapItPair its_cookies = cookies_.equal_range(key);
while (its_cookies.first != its_cookies.second) {
key_count++;
const std::string& cookie_domain(its_cookies.first->second->Domain());
domain_map[cookie_domain]++;
its_cookies.first++;
}
histogram_etldp1_count_->Add(key_count);
histogram_domain_per_etldp1_count_->Add(domain_map.size());
for (DomainMap::const_iterator domain_map_it = domain_map.begin();
domain_map_it != domain_map.end(); domain_map_it++)
histogram_domain_count_->Add(domain_map_it->second);
it_key = its_cookies.second;
}
VLOG(kVlogPeriodic)
<< "Time for recording cookie stats (us): "
<< (TimeTicks::Now() - beginning_of_time).InMicroseconds();
last_statistic_record_time_ = current_time;
}
// Initialize all histogram counter variables used in this class.
//
// Normal histogram usage involves using the macros defined in
// histogram.h, which automatically takes care of declaring these
// variables (as statics), initializing them, and accumulating into
// them, all from a single entry point. Unfortunately, that solution
// doesn't work for the CookieMonster, as it's vulnerable to races between
// separate threads executing the same functions and hence initializing the
// same static variables. There isn't a race danger in the histogram
// accumulation calls; they are written to be resilient to simultaneous
// calls from multiple threads.
//
// The solution taken here is to have per-CookieMonster instance
// variables that are constructed during CookieMonster construction.
// Note that these variables refer to the same underlying histogram,
// so we still race (but safely) with other CookieMonster instances
// for accumulation.
//
// To do this we've expanded out the individual histogram macros calls,
// with declarations of the variables in the class decl, initialization here
// (done from the class constructor) and direct calls to the accumulation
// methods where needed. The specific histogram macro calls on which the
// initialization is based are included in comments below.
void CookieMonster::InitializeHistograms() {
// From UMA_HISTOGRAM_CUSTOM_COUNTS
histogram_expiration_duration_minutes_ = base::Histogram::FactoryGet(
"Cookie.ExpirationDurationMinutes",
1, kMinutesInTenYears, 50,
base::Histogram::kUmaTargetedHistogramFlag);
histogram_between_access_interval_minutes_ = base::Histogram::FactoryGet(
"Cookie.BetweenAccessIntervalMinutes",
1, kMinutesInTenYears, 50,
base::Histogram::kUmaTargetedHistogramFlag);
histogram_evicted_last_access_minutes_ = base::Histogram::FactoryGet(
"Cookie.EvictedLastAccessMinutes",
1, kMinutesInTenYears, 50,
base::Histogram::kUmaTargetedHistogramFlag);
histogram_count_ = base::Histogram::FactoryGet(
"Cookie.Count", 1, 4000, 50,
base::Histogram::kUmaTargetedHistogramFlag);
histogram_domain_count_ = base::Histogram::FactoryGet(
"Cookie.DomainCount", 1, 4000, 50,
base::Histogram::kUmaTargetedHistogramFlag);
histogram_etldp1_count_ = base::Histogram::FactoryGet(
"Cookie.Etldp1Count", 1, 4000, 50,
base::Histogram::kUmaTargetedHistogramFlag);
histogram_domain_per_etldp1_count_ = base::Histogram::FactoryGet(
"Cookie.DomainPerEtldp1Count", 1, 4000, 50,
base::Histogram::kUmaTargetedHistogramFlag);
// From UMA_HISTOGRAM_COUNTS_10000 & UMA_HISTOGRAM_CUSTOM_COUNTS
histogram_number_duplicate_db_cookies_ = base::Histogram::FactoryGet(
"Net.NumDuplicateCookiesInDb", 1, 10000, 50,
base::Histogram::kUmaTargetedHistogramFlag);
// From UMA_HISTOGRAM_ENUMERATION
histogram_cookie_deletion_cause_ = base::LinearHistogram::FactoryGet(
"Cookie.DeletionCause", 1,
DELETE_COOKIE_LAST_ENTRY - 1, DELETE_COOKIE_LAST_ENTRY,
base::Histogram::kUmaTargetedHistogramFlag);
// From UMA_HISTOGRAM_{CUSTOM_,}TIMES
histogram_time_get_ = base::Histogram::FactoryTimeGet("Cookie.TimeGet",
base::TimeDelta::FromMilliseconds(1), base::TimeDelta::FromMinutes(1),
50, base::Histogram::kUmaTargetedHistogramFlag);
histogram_time_mac_ = base::Histogram::FactoryTimeGet("Cookie.TimeGetMac",
base::TimeDelta::FromMilliseconds(1), base::TimeDelta::FromMinutes(1),
50, base::Histogram::kUmaTargetedHistogramFlag);
histogram_time_blocked_on_load_ = base::Histogram::FactoryTimeGet(
"Cookie.TimeBlockedOnLoad",
base::TimeDelta::FromMilliseconds(1), base::TimeDelta::FromMinutes(1),
50, base::Histogram::kUmaTargetedHistogramFlag);
}
// The system resolution is not high enough, so we can have multiple
// set cookies that result in the same system time. When this happens, we
// increment by one Time unit. Let's hope computers don't get too fast.
Time CookieMonster::CurrentTime() {
return std::max(Time::Now(),
Time::FromInternalValue(last_time_seen_.ToInternalValue() + 1));
}
} // namespace net