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