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613 lines
24 KiB
C++
613 lines
24 KiB
C++
////////////////////////////////////////////////////////////
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//
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// SFML - Simple and Fast Multimedia Library
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// Copyright (C) 2007-2016 Laurent Gomila (laurent@sfml-dev.org)
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//
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// This software is provided 'as-is', without any express or implied warranty.
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// In no event will the authors be held liable for any damages arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it freely,
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// subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented;
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// you must not claim that you wrote the original software.
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// If you use this software in a product, an acknowledgment
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// in the product documentation would be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such,
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// and must not be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source distribution.
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//
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////////////////////////////////////////////////////////////
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#ifndef SFML_FTP_HPP
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#define SFML_FTP_HPP
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////////////////////////////////////////////////////////////
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// Headers
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////////////////////////////////////////////////////////////
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#include <SFML/Network/Export.hpp>
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#include <SFML/Network/TcpSocket.hpp>
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#include <SFML/System/NonCopyable.hpp>
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#include <SFML/System/Time.hpp>
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#include <string>
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#include <vector>
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namespace sf
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{
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class IpAddress;
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////////////////////////////////////////////////////////////
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/// \brief A FTP client
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///
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////////////////////////////////////////////////////////////
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class SFML_NETWORK_API Ftp : NonCopyable
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{
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public:
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////////////////////////////////////////////////////////////
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/// \brief Enumeration of transfer modes
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///
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////////////////////////////////////////////////////////////
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enum TransferMode
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{
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Binary, ///< Binary mode (file is transfered as a sequence of bytes)
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Ascii, ///< Text mode using ASCII encoding
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Ebcdic ///< Text mode using EBCDIC encoding
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};
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////////////////////////////////////////////////////////////
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/// \brief Define a FTP response
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///
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////////////////////////////////////////////////////////////
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class SFML_NETWORK_API Response
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{
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public:
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////////////////////////////////////////////////////////////
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/// \brief Status codes possibly returned by a FTP response
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///
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////////////////////////////////////////////////////////////
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enum Status
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{
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// 1xx: the requested action is being initiated,
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// expect another reply before proceeding with a new command
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RestartMarkerReply = 110, ///< Restart marker reply
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ServiceReadySoon = 120, ///< Service ready in N minutes
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DataConnectionAlreadyOpened = 125, ///< Data connection already opened, transfer starting
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OpeningDataConnection = 150, ///< File status ok, about to open data connection
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// 2xx: the requested action has been successfully completed
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Ok = 200, ///< Command ok
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PointlessCommand = 202, ///< Command not implemented
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SystemStatus = 211, ///< System status, or system help reply
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DirectoryStatus = 212, ///< Directory status
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FileStatus = 213, ///< File status
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HelpMessage = 214, ///< Help message
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SystemType = 215, ///< NAME system type, where NAME is an official system name from the list in the Assigned Numbers document
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ServiceReady = 220, ///< Service ready for new user
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ClosingConnection = 221, ///< Service closing control connection
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DataConnectionOpened = 225, ///< Data connection open, no transfer in progress
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ClosingDataConnection = 226, ///< Closing data connection, requested file action successful
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EnteringPassiveMode = 227, ///< Entering passive mode
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LoggedIn = 230, ///< User logged in, proceed. Logged out if appropriate
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FileActionOk = 250, ///< Requested file action ok
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DirectoryOk = 257, ///< PATHNAME created
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// 3xx: the command has been accepted, but the requested action
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// is dormant, pending receipt of further information
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NeedPassword = 331, ///< User name ok, need password
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NeedAccountToLogIn = 332, ///< Need account for login
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NeedInformation = 350, ///< Requested file action pending further information
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// 4xx: the command was not accepted and the requested action did not take place,
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// but the error condition is temporary and the action may be requested again
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ServiceUnavailable = 421, ///< Service not available, closing control connection
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DataConnectionUnavailable = 425, ///< Can't open data connection
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TransferAborted = 426, ///< Connection closed, transfer aborted
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FileActionAborted = 450, ///< Requested file action not taken
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LocalError = 451, ///< Requested action aborted, local error in processing
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InsufficientStorageSpace = 452, ///< Requested action not taken; insufficient storage space in system, file unavailable
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// 5xx: the command was not accepted and
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// the requested action did not take place
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CommandUnknown = 500, ///< Syntax error, command unrecognized
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ParametersUnknown = 501, ///< Syntax error in parameters or arguments
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CommandNotImplemented = 502, ///< Command not implemented
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BadCommandSequence = 503, ///< Bad sequence of commands
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ParameterNotImplemented = 504, ///< Command not implemented for that parameter
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NotLoggedIn = 530, ///< Not logged in
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NeedAccountToStore = 532, ///< Need account for storing files
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FileUnavailable = 550, ///< Requested action not taken, file unavailable
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PageTypeUnknown = 551, ///< Requested action aborted, page type unknown
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NotEnoughMemory = 552, ///< Requested file action aborted, exceeded storage allocation
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FilenameNotAllowed = 553, ///< Requested action not taken, file name not allowed
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// 10xx: SFML custom codes
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InvalidResponse = 1000, ///< Not part of the FTP standard, generated by SFML when a received response cannot be parsed
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ConnectionFailed = 1001, ///< Not part of the FTP standard, generated by SFML when the low-level socket connection with the server fails
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ConnectionClosed = 1002, ///< Not part of the FTP standard, generated by SFML when the low-level socket connection is unexpectedly closed
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InvalidFile = 1003 ///< Not part of the FTP standard, generated by SFML when a local file cannot be read or written
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};
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////////////////////////////////////////////////////////////
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/// \brief Default constructor
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///
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/// This constructor is used by the FTP client to build
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/// the response.
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///
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/// \param code Response status code
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/// \param message Response message
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///
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////////////////////////////////////////////////////////////
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explicit Response(Status code = InvalidResponse, const std::string& message = "");
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////////////////////////////////////////////////////////////
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/// \brief Check if the status code means a success
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///
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/// This function is defined for convenience, it is
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/// equivalent to testing if the status code is < 400.
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///
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/// \return True if the status is a success, false if it is a failure
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///
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////////////////////////////////////////////////////////////
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bool isOk() const;
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////////////////////////////////////////////////////////////
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/// \brief Get the status code of the response
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///
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/// \return Status code
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///
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////////////////////////////////////////////////////////////
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Status getStatus() const;
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////////////////////////////////////////////////////////////
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/// \brief Get the full message contained in the response
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///
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/// \return The response message
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///
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////////////////////////////////////////////////////////////
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const std::string& getMessage() const;
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private:
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////////////////////////////////////////////////////////////
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// Member data
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////////////////////////////////////////////////////////////
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Status m_status; ///< Status code returned from the server
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std::string m_message; ///< Last message received from the server
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};
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////////////////////////////////////////////////////////////
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/// \brief Specialization of FTP response returning a directory
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///
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////////////////////////////////////////////////////////////
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class SFML_NETWORK_API DirectoryResponse : public Response
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{
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public:
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////////////////////////////////////////////////////////////
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/// \brief Default constructor
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///
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/// \param response Source response
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///
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////////////////////////////////////////////////////////////
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DirectoryResponse(const Response& response);
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////////////////////////////////////////////////////////////
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/// \brief Get the directory returned in the response
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///
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/// \return Directory name
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///
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////////////////////////////////////////////////////////////
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const std::string& getDirectory() const;
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private:
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////////////////////////////////////////////////////////////
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// Member data
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////////////////////////////////////////////////////////////
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std::string m_directory; ///< Directory extracted from the response message
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};
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////////////////////////////////////////////////////////////
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/// \brief Specialization of FTP response returning a
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/// filename listing
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////////////////////////////////////////////////////////////
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class SFML_NETWORK_API ListingResponse : public Response
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{
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public:
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////////////////////////////////////////////////////////////
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/// \brief Default constructor
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///
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/// \param response Source response
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/// \param data Data containing the raw listing
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///
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////////////////////////////////////////////////////////////
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ListingResponse(const Response& response, const std::string& data);
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////////////////////////////////////////////////////////////
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/// \brief Return the array of directory/file names
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///
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/// \return Array containing the requested listing
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///
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////////////////////////////////////////////////////////////
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const std::vector<std::string>& getListing() const;
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private:
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////////////////////////////////////////////////////////////
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// Member data
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////////////////////////////////////////////////////////////
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std::vector<std::string> m_listing; ///< Directory/file names extracted from the data
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};
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////////////////////////////////////////////////////////////
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/// \brief Destructor
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///
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/// Automatically closes the connection with the server if
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/// it is still opened.
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///
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////////////////////////////////////////////////////////////
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~Ftp();
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////////////////////////////////////////////////////////////
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/// \brief Connect to the specified FTP server
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///
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/// The port has a default value of 21, which is the standard
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/// port used by the FTP protocol. You shouldn't use a different
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/// value, unless you really know what you do.
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/// This function tries to connect to the server so it may take
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/// a while to complete, especially if the server is not
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/// reachable. To avoid blocking your application for too long,
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/// you can use a timeout. The default value, Time::Zero, means that the
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/// system timeout will be used (which is usually pretty long).
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///
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/// \param server Name or address of the FTP server to connect to
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/// \param port Port used for the connection
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/// \param timeout Maximum time to wait
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///
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/// \return Server response to the request
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///
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/// \see disconnect
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///
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////////////////////////////////////////////////////////////
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Response connect(const IpAddress& server, unsigned short port = 21, Time timeout = Time::Zero);
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////////////////////////////////////////////////////////////
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/// \brief Close the connection with the server
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///
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/// \return Server response to the request
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///
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/// \see connect
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///
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////////////////////////////////////////////////////////////
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Response disconnect();
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////////////////////////////////////////////////////////////
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/// \brief Log in using an anonymous account
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///
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/// Logging in is mandatory after connecting to the server.
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/// Users that are not logged in cannot perform any operation.
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///
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/// \return Server response to the request
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///
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////////////////////////////////////////////////////////////
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Response login();
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////////////////////////////////////////////////////////////
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/// \brief Log in using a username and a password
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///
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/// Logging in is mandatory after connecting to the server.
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/// Users that are not logged in cannot perform any operation.
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///
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/// \param name User name
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/// \param password Password
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///
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/// \return Server response to the request
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///
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////////////////////////////////////////////////////////////
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Response login(const std::string& name, const std::string& password);
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////////////////////////////////////////////////////////////
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/// \brief Send a null command to keep the connection alive
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///
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/// This command is useful because the server may close the
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/// connection automatically if no command is sent.
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///
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/// \return Server response to the request
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///
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////////////////////////////////////////////////////////////
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Response keepAlive();
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////////////////////////////////////////////////////////////
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/// \brief Get the current working directory
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///
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/// The working directory is the root path for subsequent
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/// operations involving directories and/or filenames.
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///
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/// \return Server response to the request
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///
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/// \see getDirectoryListing, changeDirectory, parentDirectory
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///
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////////////////////////////////////////////////////////////
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DirectoryResponse getWorkingDirectory();
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////////////////////////////////////////////////////////////
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/// \brief Get the contents of the given directory
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///
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/// This function retrieves the sub-directories and files
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/// contained in the given directory. It is not recursive.
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/// The \a directory parameter is relative to the current
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/// working directory.
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///
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/// \param directory Directory to list
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///
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/// \return Server response to the request
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///
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/// \see getWorkingDirectory, changeDirectory, parentDirectory
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///
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////////////////////////////////////////////////////////////
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ListingResponse getDirectoryListing(const std::string& directory = "");
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////////////////////////////////////////////////////////////
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/// \brief Change the current working directory
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///
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/// The new directory must be relative to the current one.
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///
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/// \param directory New working directory
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///
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/// \return Server response to the request
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///
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/// \see getWorkingDirectory, getDirectoryListing, parentDirectory
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///
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////////////////////////////////////////////////////////////
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Response changeDirectory(const std::string& directory);
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////////////////////////////////////////////////////////////
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/// \brief Go to the parent directory of the current one
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///
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/// \return Server response to the request
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///
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/// \see getWorkingDirectory, getDirectoryListing, changeDirectory
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///
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////////////////////////////////////////////////////////////
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Response parentDirectory();
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////////////////////////////////////////////////////////////
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/// \brief Create a new directory
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///
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/// The new directory is created as a child of the current
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/// working directory.
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///
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/// \param name Name of the directory to create
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///
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/// \return Server response to the request
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///
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/// \see deleteDirectory
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///
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////////////////////////////////////////////////////////////
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Response createDirectory(const std::string& name);
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////////////////////////////////////////////////////////////
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/// \brief Remove an existing directory
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///
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/// The directory to remove must be relative to the
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/// current working directory.
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/// Use this function with caution, the directory will
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/// be removed permanently!
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///
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/// \param name Name of the directory to remove
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///
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/// \return Server response to the request
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///
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/// \see createDirectory
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///
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////////////////////////////////////////////////////////////
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Response deleteDirectory(const std::string& name);
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////////////////////////////////////////////////////////////
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/// \brief Rename an existing file
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///
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/// The filenames must be relative to the current working
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/// directory.
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///
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/// \param file File to rename
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/// \param newName New name of the file
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///
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/// \return Server response to the request
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///
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/// \see deleteFile
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///
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////////////////////////////////////////////////////////////
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Response renameFile(const std::string& file, const std::string& newName);
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////////////////////////////////////////////////////////////
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/// \brief Remove an existing file
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///
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/// The file name must be relative to the current working
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/// directory.
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/// Use this function with caution, the file will be
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/// removed permanently!
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///
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/// \param name File to remove
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///
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/// \return Server response to the request
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///
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/// \see renameFile
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///
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////////////////////////////////////////////////////////////
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Response deleteFile(const std::string& name);
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////////////////////////////////////////////////////////////
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/// \brief Download a file from the server
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///
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/// The filename of the distant file is relative to the
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/// current working directory of the server, and the local
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/// destination path is relative to the current directory
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/// of your application.
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/// If a file with the same filename as the distant file
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/// already exists in the local destination path, it will
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/// be overwritten.
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///
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/// \param remoteFile Filename of the distant file to download
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/// \param localPath The directory in which to put the file on the local computer
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/// \param mode Transfer mode
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///
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/// \return Server response to the request
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///
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/// \see upload
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///
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////////////////////////////////////////////////////////////
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Response download(const std::string& remoteFile, const std::string& localPath, TransferMode mode = Binary);
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////////////////////////////////////////////////////////////
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/// \brief Upload a file to the server
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///
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/// The name of the local file is relative to the current
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/// working directory of your application, and the
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/// remote path is relative to the current directory of the
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/// FTP server.
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///
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/// \param localFile Path of the local file to upload
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/// \param remotePath The directory in which to put the file on the server
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/// \param mode Transfer mode
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///
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/// \return Server response to the request
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///
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/// \see download
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///
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////////////////////////////////////////////////////////////
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Response upload(const std::string& localFile, const std::string& remotePath, TransferMode mode = Binary);
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////////////////////////////////////////////////////////////
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/// \brief Send a command to the FTP server
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///
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/// While the most often used commands are provided as member
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/// functions in the sf::Ftp class, this method can be used
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/// to send any FTP command to the server. If the command
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/// requires one or more parameters, they can be specified
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/// in \a parameter. If the server returns information, you
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/// can extract it from the response using Response::getMessage().
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///
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/// \param command Command to send
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/// \param parameter Command parameter
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///
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/// \return Server response to the request
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///
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////////////////////////////////////////////////////////////
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Response sendCommand(const std::string& command, const std::string& parameter = "");
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private:
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////////////////////////////////////////////////////////////
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/// \brief Receive a response from the server
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///
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/// This function must be called after each call to
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/// sendCommand that expects a response.
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///
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/// \return Server response to the request
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///
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////////////////////////////////////////////////////////////
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Response getResponse();
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////////////////////////////////////////////////////////////
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/// \brief Utility class for exchanging datas with the server
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/// on the data channel
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///
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////////////////////////////////////////////////////////////
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class DataChannel;
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friend class DataChannel;
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////////////////////////////////////////////////////////////
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// Member data
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////////////////////////////////////////////////////////////
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TcpSocket m_commandSocket; ///< Socket holding the control connection with the server
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std::string m_receiveBuffer; ///< Received command data that is yet to be processed
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};
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} // namespace sf
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#endif // SFML_FTP_HPP
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////////////////////////////////////////////////////////////
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/// \class sf::Ftp
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/// \ingroup network
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///
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/// sf::Ftp is a very simple FTP client that allows you
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/// to communicate with a FTP server. The FTP protocol allows
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/// you to manipulate a remote file system (list files,
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/// upload, download, create, remove, ...).
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///
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/// Using the FTP client consists of 4 parts:
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/// \li Connecting to the FTP server
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/// \li Logging in (either as a registered user or anonymously)
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/// \li Sending commands to the server
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/// \li Disconnecting (this part can be done implicitly by the destructor)
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///
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/// Every command returns a FTP response, which contains the
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/// status code as well as a message from the server. Some
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/// commands such as getWorkingDirectory() and getDirectoryListing()
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/// return additional data, and use a class derived from
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/// sf::Ftp::Response to provide this data. The most often used
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/// commands are directly provided as member functions, but it is
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/// also possible to use specific commands with the sendCommand() function.
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///
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/// Note that response statuses >= 1000 are not part of the FTP standard,
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/// they are generated by SFML when an internal error occurs.
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///
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/// All commands, especially upload and download, may take some
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/// time to complete. This is important to know if you don't want
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/// to block your application while the server is completing
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/// the task.
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///
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/// Usage example:
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/// \code
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/// // Create a new FTP client
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/// sf::Ftp ftp;
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///
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/// // Connect to the server
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/// sf::Ftp::Response response = ftp.connect("ftp://ftp.myserver.com");
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/// if (response.isOk())
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/// std::cout << "Connected" << std::endl;
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///
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/// // Log in
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/// response = ftp.login("laurent", "dF6Zm89D");
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/// if (response.isOk())
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/// std::cout << "Logged in" << std::endl;
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///
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/// // Print the working directory
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/// sf::Ftp::DirectoryResponse directory = ftp.getWorkingDirectory();
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/// if (directory.isOk())
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/// std::cout << "Working directory: " << directory.getDirectory() << std::endl;
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///
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|
/// // Create a new directory
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|
/// response = ftp.createDirectory("files");
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/// if (response.isOk())
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|
/// std::cout << "Created new directory" << std::endl;
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|
///
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|
/// // Upload a file to this new directory
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|
/// response = ftp.upload("local-path/file.txt", "files", sf::Ftp::Ascii);
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|
/// if (response.isOk())
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|
/// std::cout << "File uploaded" << std::endl;
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|
///
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|
/// // Send specific commands (here: FEAT to list supported FTP features)
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|
/// response = ftp.sendCommand("FEAT");
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|
/// if (response.isOk())
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|
/// std::cout << "Feature list:\n" << response.getMessage() << std::endl;
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///
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|
/// // Disconnect from the server (optional)
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|
/// ftp.disconnect();
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/// \endcode
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///
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|
////////////////////////////////////////////////////////////
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