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// Copyright 2013 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 "base/bind.h"
#include "base/command_line.h"
#include "base/memory/ref_counted.h"
#include "chrome/browser/browser_shutdown.h"
#include "chrome/browser/prefs/session_startup_pref.h"
#include "chrome/browser/profiles/profile_io_data.h"
#include "chrome/browser/ui/startup/startup_browser_creator.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/dom_storage_context.h"
#include "content/public/browser/local_storage_usage_info.h"
#include "content/public/browser/storage_partition.h"
#include "net/cookies/cookie_monster.h"
#include "net/cookies/cookie_store.h"
#include "net/cookies/cookie_util.h"
#include "net/url_request/url_request_context.h"
#include "storage/browser/quota/special_storage_policy.h"
namespace {
void CookieDeleted(bool success) {
DCHECK(success);
}
class SessionDataDeleter
: public base::RefCountedThreadSafe<SessionDataDeleter> {
public:
SessionDataDeleter(storage::SpecialStoragePolicy* storage_policy,
bool delete_only_by_session_only_policy);
void Run(content::StoragePartition* storage_partition,
ProfileIOData* profile_io_data);
private:
friend class base::RefCountedThreadSafe<SessionDataDeleter>;
~SessionDataDeleter();
// Deletes the local storage described by |usages| for origins which are
// session-only.
void ClearSessionOnlyLocalStorage(
content::StoragePartition* storage_partition,
const std::vector<content::LocalStorageUsageInfo>& usages);
// Deletes all cookies that are session only if
// |delete_only_by_session_only_policy_| is false. Once completed or skipped,
// this arranges for DeleteSessionOnlyOriginCookies to be called with a list
// of all remaining cookies.
void DeleteSessionCookiesOnIOThread(ProfileIOData* profile_io_data);
// Called when all session-only cookies have been deleted.
void DeleteSessionCookiesDone(int num_deleted);
// Deletes the cookies in |cookies| that are for origins which are
// session-only.
void DeleteSessionOnlyOriginCookies(const net::CookieList& cookies);
scoped_refptr<net::CookieMonster> cookie_monster_;
scoped_refptr<storage::SpecialStoragePolicy> storage_policy_;
const bool delete_only_by_session_only_policy_;
DISALLOW_COPY_AND_ASSIGN(SessionDataDeleter);
};
SessionDataDeleter::SessionDataDeleter(
storage::SpecialStoragePolicy* storage_policy,
bool delete_only_by_session_only_policy)
: storage_policy_(storage_policy),
delete_only_by_session_only_policy_(delete_only_by_session_only_policy) {
}
void SessionDataDeleter::Run(content::StoragePartition* storage_partition,
ProfileIOData* profile_io_data) {
if (storage_policy_.get() && storage_policy_->HasSessionOnlyOrigins()) {
storage_partition->GetDOMStorageContext()->GetLocalStorageUsage(
base::Bind(&SessionDataDeleter::ClearSessionOnlyLocalStorage,
this,
storage_partition));
}
content::BrowserThread::PostTask(
content::BrowserThread::IO,
FROM_HERE,
base::Bind(&SessionDataDeleter::DeleteSessionCookiesOnIOThread,
this,
profile_io_data));
}
SessionDataDeleter::~SessionDataDeleter() {}
void SessionDataDeleter::ClearSessionOnlyLocalStorage(
content::StoragePartition* storage_partition,
const std::vector<content::LocalStorageUsageInfo>& usages) {
DCHECK(storage_policy_.get());
DCHECK(storage_policy_->HasSessionOnlyOrigins());
for (size_t i = 0; i < usages.size(); ++i) {
const content::LocalStorageUsageInfo& usage = usages[i];
if (!storage_policy_->IsStorageSessionOnly(usage.origin))
continue;
storage_partition->GetDOMStorageContext()->DeleteLocalStorage(usage.origin);
}
}
void SessionDataDeleter::DeleteSessionCookiesOnIOThread(
ProfileIOData* profile_io_data) {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
net::URLRequestContext* request_context =
profile_io_data->GetMainRequestContext();
cookie_monster_ = request_context->cookie_store()->GetCookieMonster();
if (delete_only_by_session_only_policy_) {
cookie_monster_->GetAllCookiesAsync(
base::Bind(&SessionDataDeleter::DeleteSessionOnlyOriginCookies, this));
} else {
cookie_monster_->DeleteSessionCookiesAsync(
base::Bind(&SessionDataDeleter::DeleteSessionCookiesDone, this));
}
}
void SessionDataDeleter::DeleteSessionCookiesDone(int num_deleted) {
cookie_monster_->GetAllCookiesAsync(
base::Bind(&SessionDataDeleter::DeleteSessionOnlyOriginCookies, this));
}
void SessionDataDeleter::DeleteSessionOnlyOriginCookies(
const net::CookieList& cookies) {
if (!storage_policy_.get() || !storage_policy_->HasSessionOnlyOrigins())
return;
for (net::CookieList::const_iterator it = cookies.begin();
it != cookies.end();
++it) {
GURL url =
net::cookie_util::CookieOriginToURL(it->Domain(), it->IsSecure());
if (!storage_policy_->IsStorageSessionOnly(url))
continue;
cookie_monster_->DeleteCanonicalCookieAsync(*it, base::Bind(CookieDeleted));
}
}
} // namespace
void DeleteSessionOnlyData(Profile* profile) {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
if (browser_shutdown::IsTryingToQuit())
return;
#if defined(OS_ANDROID)
SessionStartupPref::Type startup_pref_type =
SessionStartupPref::GetDefaultStartupType();
#else
SessionStartupPref::Type startup_pref_type =
StartupBrowserCreator::GetSessionStartupPref(
*CommandLine::ForCurrentProcess(), profile).type;
#endif
scoped_refptr<SessionDataDeleter> deleter(
new SessionDataDeleter(profile->GetSpecialStoragePolicy(),
startup_pref_type == SessionStartupPref::LAST));
deleter->Run(
Profile::GetDefaultStoragePartition(profile),
ProfileIOData::FromResourceContext(profile->GetResourceContext()));
}
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