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// Copyright (c) 2011 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.
#ifndef NET_SSL_SSL_CLIENT_AUTH_CACHE_H_
#define NET_SSL_SSL_CLIENT_AUTH_CACHE_H_
#include <map>
#include <string>
#include <utility>
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "net/base/host_port_pair.h"
#include "net/base/net_export.h"
#include "net/cert/cert_database.h"
#include "net/ssl/ssl_private_key.h"
namespace net {
class X509Certificate;
// The SSLClientAuthCache class is a simple cache structure to store SSL
// client certificates. Provides lookup, insertion, and deletion of entries.
// The parameter for doing lookups, insertions, and deletions is the server's
// host and port.
//
// TODO(wtc): This class is based on FtpAuthCache. We can extract the common
// code to a template class.
class NET_EXPORT_PRIVATE SSLClientAuthCache : public CertDatabase::Observer {
public:
SSLClientAuthCache();
~SSLClientAuthCache() override;
// Checks for a client certificate preference for SSL server at |server|.
// Returns true if a preference is found, and sets |*certificate| to the
// desired client certificate. The desired certificate may be NULL, which
// indicates a preference to not send any certificate to |server|.
// If a certificate preference is not found, returns false.
bool Lookup(const HostPortPair& server,
scoped_refptr<X509Certificate>* certificate,
scoped_refptr<SSLPrivateKey>* private_key);
// Add a client certificate and private key for |server| to the cache. If
// there is already a client certificate for |server|, it will be
// overwritten. A NULL |client_cert| indicates a preference that no client
// certificate should be sent to |server|.
void Add(const HostPortPair& server,
X509Certificate* client_cert,
SSLPrivateKey* private_key);
// Remove the client certificate for |server| from the cache, if one exists.
void Remove(const HostPortPair& server);
// CertDatabase::Observer methods:
void OnCertAdded(const X509Certificate* cert) override;
private:
typedef HostPortPair AuthCacheKey;
typedef std::pair<scoped_refptr<X509Certificate>,
scoped_refptr<SSLPrivateKey>> AuthCacheValue;
typedef std::map<AuthCacheKey, AuthCacheValue> AuthCacheMap;
// internal representation of cache, an STL map.
AuthCacheMap cache_;
};
} // namespace net
#endif // NET_SSL_SSL_CLIENT_AUTH_CACHE_H_
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