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// Copyright 2013 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_WEBSOCKETS_WEBSOCKET_HANDSHAKE_STREAM_CREATE_HELPER_H_
#define NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_STREAM_CREATE_HELPER_H_
#include <string>
#include <vector>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "net/base/net_export.h"
#include "net/websockets/websocket_handshake_stream_base.h"
#include "net/websockets/websocket_stream.h"
namespace net {
class WebSocketBasicHandshakeStream;
// Implementation of WebSocketHandshakeStreamBase::CreateHelper. This class is
// used in the implementation of WebSocketStream::CreateAndConnectStream() and
// is not intended to be used by itself.
//
// Holds the information needed to construct a
// WebSocketBasicHandshakeStreamBase.
class NET_EXPORT_PRIVATE WebSocketHandshakeStreamCreateHelper
: public WebSocketHandshakeStreamBase::CreateHelper {
public:
// |connect_delegate| must out-live this object.
explicit WebSocketHandshakeStreamCreateHelper(
WebSocketStream::ConnectDelegate* connect_delegate,
const std::vector<std::string>& requested_subprotocols);
~WebSocketHandshakeStreamCreateHelper() override;
// WebSocketHandshakeStreamBase::CreateHelper methods
// Create a WebSocketBasicHandshakeStream.
WebSocketHandshakeStreamBase* CreateBasicStream(
scoped_ptr<ClientSocketHandle> connection,
bool using_proxy) override;
// Unimplemented as of November 2013.
WebSocketHandshakeStreamBase* CreateSpdyStream(
const base::WeakPtr<SpdySession>& session,
bool use_relative_url) override;
// Call Upgrade() on the WebSocketHandshakeStream and return the result. This
// must only be called if the handshake succeeded.
scoped_ptr<WebSocketStream> Upgrade();
// Set a pointer to the std::string into which to write any failure messages
// that are encountered. This method must be called before CreateBasicStream()
// or CreateSpdyStream(). The |failure_message| pointer must remain valid as
// long as this object exists.
void set_failure_message(std::string* failure_message) {
failure_message_ = failure_message;
}
protected:
// This is used by DeterministicKeyWebSocketHandshakeStreamCreateHelper.
// The default implementation does nothing.
virtual void OnStreamCreated(WebSocketBasicHandshakeStream* stream);
private:
const std::vector<std::string> requested_subprotocols_;
// This is owned by the caller of CreateBaseStream() or
// CreateSpdyStream(). Both the stream and this object will be destroyed
// during the destruction of the URLRequest object associated with the
// handshake. This is only guaranteed to be a valid pointer if the handshake
// succeeded.
WebSocketHandshakeStreamBase* stream_;
WebSocketStream::ConnectDelegate* connect_delegate_;
std::string* failure_message_;
DISALLOW_COPY_AND_ASSIGN(WebSocketHandshakeStreamCreateHelper);
};
} // namespace net
#endif // NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_STREAM_CREATE_HELPER_H_
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