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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_SPDY_MULTIPLEXED_SESSION_H_
#define NET_SPDY_MULTIPLEXED_SESSION_H_
#include <string_view>
#include "net/base/ip_endpoint.h"
#include "net/base/net_errors.h"
#include "net/http/http_stream.h"
#include "net/ssl/ssl_info.h"
namespace url {
class SchemeHostPort;
}
namespace net {
// Base class for SPDY and QUIC sessions.
class NET_EXPORT_PRIVATE MultiplexedSession {
public:
virtual ~MultiplexedSession() = default;
// Fills SSL info in |ssl_info| and returns true when SSL is in use.
virtual bool GetSSLInfo(SSLInfo* ssl_info) const = 0;
// Gets the remote endpoint of the socket that the HTTP stream is using, if
// any. Returns OK and fills in |endpoint| if it is available; returns an
// error and does not modify |endpoint| otherwise.
virtual int GetRemoteEndpoint(IPEndPoint* endpoint) = 0;
// The value corresponding to |scheme_host_port| in the ACCEPT_CH frame
// received during TLS handshake via the ALPS extension, or the empty string
// if the server did not send one. Unlike Accept-CH header fields received in
// HTTP responses, this value is available before any requests are made.
//
// Note that this uses url::SchemeHostPort instead of url::Origin because this
// is based around network authorities, as opposed to general RFC 6454
// origins.
virtual std::string_view GetAcceptChViaAlps(
const url::SchemeHostPort& scheme_host_port) const = 0;
};
// A handle to a multiplexed session which will be valid even after the
// underlying session is deleted.
class NET_EXPORT_PRIVATE MultiplexedSessionHandle {
public:
explicit MultiplexedSessionHandle(base::WeakPtr<MultiplexedSession> session);
virtual ~MultiplexedSessionHandle();
// Gets the remote endpoint of the socket that the HTTP stream is using, if
// any. Returns OK and fills in |endpoint| if it is available; returns an
// error and does not modify |endpoint| otherwise.
int GetRemoteEndpoint(IPEndPoint* endpoint);
// Fills SSL info in |ssl_info| and returns true when SSL is in use.
bool GetSSLInfo(SSLInfo* ssl_info) const;
// Caches SSL info from the underlying session.
void SaveSSLInfo();
// The value corresponding to |scheme_host_port| in the ACCEPT_CH frame
// received during TLS handshake via the ALPS extension, or the empty string
// if the server did not send one or if the underlying session is not
// available.
//
// Note that this uses url::SchemeHostPort instead of url::Origin because this
// is based around network authorities, as opposed to general RFC 6454
// origins.
virtual std::string_view GetAcceptChViaAlps(
const url::SchemeHostPort& scheme_host_port) const;
private:
base::WeakPtr<MultiplexedSession> session_;
SSLInfo ssl_info_;
bool has_ssl_info_;
};
} // namespace net
#endif // NET_SPDY_MULTIPLEXED_SESSION_H_
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