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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_HTTP_HTTP_CACHE_LOOKUP_MANAGER_H_
#define NET_HTTP_HTTP_CACHE_LOOKUP_MANAGER_H_
#include "base/memory/raw_ptr.h"
#include "net/base/net_export.h"
#include "net/http/http_cache.h"
#include "net/http/http_cache_transaction.h"
#include "net/spdy/server_push_delegate.h"
namespace net {
struct HttpRequestInfo;
// An implementation of ServerPushDelegate that issues an HttpCache::Transaction
// to lookup whether the response to the pushed URL is cached and cancel the
// push in that case.
class NET_EXPORT_PRIVATE HttpCacheLookupManager : public ServerPushDelegate {
public:
// |http_cache| MUST outlive the HttpCacheLookupManager.
explicit HttpCacheLookupManager(HttpCache* http_cache);
~HttpCacheLookupManager() override;
// ServerPushDelegate implementation.
void OnPush(std::unique_ptr<ServerPushHelper> push_helper,
const NetLogWithSource& session_net_log) override;
// Invoked when the HttpCache::Transaction for |url| finishes to cancel the
// server push if the response to the server push is found cached.
void OnLookupComplete(const GURL& url, int rv);
private:
// A class that takes the ownership of ServerPushHelper, issues and owns an
// HttpCache::Transaction which lookups the response in cache for the server
// push.
class LookupTransaction {
public:
LookupTransaction(std::unique_ptr<ServerPushHelper> push_helper,
NetLog* net_log);
~LookupTransaction();
// Issues an HttpCache::Transaction to lookup whether the response is cached
// without header validation.
int StartLookup(HttpCache* cache,
CompletionOnceCallback callback,
const NetLogWithSource& session_net_log);
void OnLookupComplete(int result);
private:
std::unique_ptr<ServerPushHelper> push_helper_;
std::unique_ptr<HttpRequestInfo> request_;
std::unique_ptr<HttpTransaction> transaction_;
const NetLogWithSource net_log_;
};
// HttpCache must outlive the HttpCacheLookupManager.
raw_ptr<HttpCache> http_cache_;
std::map<GURL, std::unique_ptr<LookupTransaction>> lookup_transactions_;
base::WeakPtrFactory<HttpCacheLookupManager> weak_factory_{this};
};
} // namespace net
#endif // NET_HTTP_HTTP_CACHE_LOOKUP_MANAGER_H_
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