blob: a74887cbdbd96829150cdd6903310a53031ae7aa [file] [log] [blame]
// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ios/net/http_cache_helper.h"
#include <utility>
#include "base/bind.h"
#include "base/callback.h"
#include "base/callback_helpers.h"
#include "base/location.h"
#include "base/task_runner.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/time/time.h"
#include "net/base/completion_repeating_callback.h"
#include "net/disk_cache/disk_cache.h"
#include "net/http/http_cache.h"
#include "net/http/http_network_session.h"
#include "net/http/http_transaction_factory.h"
#include "net/quic/quic_stream_factory.h"
#include "net/url_request/url_request_context.h"
#include "net/url_request/url_request_context_getter.h"
#include "url/gurl.h"
namespace {
// Posts |callback| on |task_runner|.
void PostCallback(const scoped_refptr<base::TaskRunner>& task_runner,
net::CompletionOnceCallback callback,
int error) {
task_runner->PostTask(FROM_HERE, base::BindOnce(std::move(callback), error));
}
// Clears the disk_cache::Backend on the IO thread and deletes |backend|.
void DoomHttpCache(std::unique_ptr<disk_cache::Backend*> backend,
const scoped_refptr<base::TaskRunner>& client_task_runner,
const base::Time& delete_begin,
const base::Time& delete_end,
net::CompletionOnceCallback callback,
int error) {
// |*backend| may be null in case of error.
if (*backend) {
auto callback_pair = base::SplitOnceCallback(std::move(callback));
const int rv = (*backend)->DoomEntriesBetween(
delete_begin, delete_end,
base::BindOnce(&PostCallback, client_task_runner,
std::move(callback_pair.first)));
// DoomEntriesBetween does not invoke callback unless rv is ERR_IO_PENDING.
if (rv != net::ERR_IO_PENDING) {
client_task_runner->PostTask(
FROM_HERE, base::BindOnce(std::move(callback_pair.second), rv));
}
} else {
client_task_runner->PostTask(FROM_HERE,
base::BindOnce(std::move(callback), error));
}
}
// Clears various caches synchronously and the disk_cache::Backend
// asynchronously.
void ClearHttpCacheOnIOThread(
const scoped_refptr<net::URLRequestContextGetter>& getter,
const scoped_refptr<base::TaskRunner>& client_task_runner,
const base::Time& delete_begin,
const base::Time& delete_end,
net::CompletionOnceCallback callback) {
net::HttpCache* http_cache =
getter->GetURLRequestContext()->http_transaction_factory()->GetCache();
// Clear QUIC server information from memory and the disk cache.
http_cache->GetSession()
->quic_stream_factory()
->ClearCachedStatesInCryptoConfig(
base::RepeatingCallback<bool(const GURL&)>());
std::unique_ptr<disk_cache::Backend*> backend(
new disk_cache::Backend*(nullptr));
disk_cache::Backend** backend_ptr = backend.get();
auto doom_callback_pair = base::SplitOnceCallback(
base::BindOnce(&DoomHttpCache, std::move(backend), client_task_runner,
delete_begin, delete_end, std::move(callback)));
const int rv =
http_cache->GetBackend(backend_ptr, std::move(doom_callback_pair.first));
if (rv != net::ERR_IO_PENDING) {
// GetBackend doesn't call the callback if it completes synchronously, so
// call it directly here.
std::move(doom_callback_pair.second).Run(rv);
}
}
} // namespace
namespace net {
void ClearHttpCache(const scoped_refptr<net::URLRequestContextGetter>& getter,
const scoped_refptr<base::TaskRunner>& network_task_runner,
const base::Time& delete_begin,
const base::Time& delete_end,
net::CompletionOnceCallback callback) {
DCHECK(delete_end != base::Time());
network_task_runner->PostTask(
FROM_HERE, base::BindOnce(&ClearHttpCacheOnIOThread, getter,
base::ThreadTaskRunnerHandle::Get(),
delete_begin, delete_end, std::move(callback)));
}
} // namespace net