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// Copyright (c) 2008 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_FTP_FTP_NETWORK_TRANSACTION_H_
#define NET_FTP_FTP_NETWORK_TRANSACTION_H_
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "net/ftp/ftp_response_info.h"
#include "net/ftp/ftp_transaction.h"
namespace net {
class ClientSocket;
class ClientSocketFactory;
class FtpNetworkSession;
class FtpNetworkTransaction : public FtpTransaction {
public:
FtpNetworkTransaction(
FtpNetworkSession* session, ClientSocketFactory* socket_factory);
~FtpNetworkTransaction();
// FtpTransactionFactory methods:
virtual void Destroy();
virtual int Start(
const FtpRequestInfo* request_info, CompletionCallback* callback);
virtual int RestartWithAuth(
const std::wstring& username, const std::wstring& password,
CompletionCallback* callback);
virtual int Read(char* buf, int buf_len, CompletionCallback* callback);
virtual const FtpResponseInfo* GetResponseInfo() const;
virtual LoadState GetLoadState() const;
virtual uint64 GetUploadProgress() const;
private:
void DoCallback(int result);
void OnIOComplete(int result);
// Runs the state transition loop.
int DoLoop(int result);
// Each of these methods corresponds to a State value. Those with an input
// argument receive the result from the previous state. If a method returns
// ERR_IO_PENDING, then the result from OnIOComplete will be passed to the
// next state method as the result arg.
int DoCtrlInit();
int DoCtrlInitComplete(int result);
int DoCtrlResolveHost();
int DoCtrlResolveHostComplete(int result);
int DoCtrlConnect();
int DoCtrlConnectComplete(int result);
int DoCtrlWrite();
int DoCtrlWriteComplete(int result);
int DoCtrlRead();
int DoCtrlReadComplete(int result);
int DoDataConnect();
int DoDataConnectComplete(int result);
int DoDataRead();
int DoDataReadComplete(int result);
CompletionCallbackImpl<FtpNetworkTransaction> io_callback_;
CompletionCallback* user_callback_;
scoped_refptr<FtpNetworkSession> session_;
const FtpRequestInfo* request_;
FtpResponseInfo response_;
ClientSocketFactory* socket_factory_;
scoped_ptr<ClientSocket> ctrl_socket_;
scoped_ptr<ClientSocket> data_socket_;
enum State {
// Control connection states:
STATE_CTRL_INIT,
STATE_CTRL_INIT_COMPLETE,
STATE_CTRL_RESOLVE_HOST,
STATE_CTRL_RESOLVE_HOST_COMPLETE,
STATE_CTRL_CONNECT,
STATE_CTRL_CONNECT_COMPLETE,
STATE_CTRL_WRITE,
STATE_CTRL_WRITE_COMPLETE,
STATE_CTRL_READ,
STATE_CTRL_READ_COMPLETE,
// Data connection states:
STATE_DATA_CONNECT,
STATE_DATA_CONNECT_COMPLETE,
STATE_DATA_READ,
STATE_DATA_READ_COMPLETE,
STATE_NONE
};
State next_state_;
};
} // namespace net
#endif // NET_FTP_FTP_NETWORK_TRANSACTION_H_
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