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Tiberiu Chibici
2018-02-06 01:44:42 +02:00
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SFML-2.4.2/include/SFML/Network/Ftp.hpp Normal file
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////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2017 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////
#ifndef SFML_FTP_HPP
#define SFML_FTP_HPP
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Network/Export.hpp>
#include <SFML/Network/TcpSocket.hpp>
#include <SFML/System/NonCopyable.hpp>
#include <SFML/System/Time.hpp>
#include <string>
#include <vector>
namespace sf
{
class IpAddress;
////////////////////////////////////////////////////////////
/// \brief A FTP client
///
////////////////////////////////////////////////////////////
class SFML_NETWORK_API Ftp : NonCopyable
{
public:
////////////////////////////////////////////////////////////
/// \brief Enumeration of transfer modes
///
////////////////////////////////////////////////////////////
enum TransferMode
{
Binary, ///< Binary mode (file is transfered as a sequence of bytes)
Ascii, ///< Text mode using ASCII encoding
Ebcdic ///< Text mode using EBCDIC encoding
};
////////////////////////////////////////////////////////////
/// \brief Define a FTP response
///
////////////////////////////////////////////////////////////
class SFML_NETWORK_API Response
{
public:
////////////////////////////////////////////////////////////
/// \brief Status codes possibly returned by a FTP response
///
////////////////////////////////////////////////////////////
enum Status
{
// 1xx: the requested action is being initiated,
// expect another reply before proceeding with a new command
RestartMarkerReply = 110, ///< Restart marker reply
ServiceReadySoon = 120, ///< Service ready in N minutes
DataConnectionAlreadyOpened = 125, ///< Data connection already opened, transfer starting
OpeningDataConnection = 150, ///< File status ok, about to open data connection
// 2xx: the requested action has been successfully completed
Ok = 200, ///< Command ok
PointlessCommand = 202, ///< Command not implemented
SystemStatus = 211, ///< System status, or system help reply
DirectoryStatus = 212, ///< Directory status
FileStatus = 213, ///< File status
HelpMessage = 214, ///< Help message
SystemType = 215, ///< NAME system type, where NAME is an official system name from the list in the Assigned Numbers document
ServiceReady = 220, ///< Service ready for new user
ClosingConnection = 221, ///< Service closing control connection
DataConnectionOpened = 225, ///< Data connection open, no transfer in progress
ClosingDataConnection = 226, ///< Closing data connection, requested file action successful
EnteringPassiveMode = 227, ///< Entering passive mode
LoggedIn = 230, ///< User logged in, proceed. Logged out if appropriate
FileActionOk = 250, ///< Requested file action ok
DirectoryOk = 257, ///< PATHNAME created
// 3xx: the command has been accepted, but the requested action
// is dormant, pending receipt of further information
NeedPassword = 331, ///< User name ok, need password
NeedAccountToLogIn = 332, ///< Need account for login
NeedInformation = 350, ///< Requested file action pending further information
// 4xx: the command was not accepted and the requested action did not take place,
// but the error condition is temporary and the action may be requested again
ServiceUnavailable = 421, ///< Service not available, closing control connection
DataConnectionUnavailable = 425, ///< Can't open data connection
TransferAborted = 426, ///< Connection closed, transfer aborted
FileActionAborted = 450, ///< Requested file action not taken
LocalError = 451, ///< Requested action aborted, local error in processing
InsufficientStorageSpace = 452, ///< Requested action not taken; insufficient storage space in system, file unavailable
// 5xx: the command was not accepted and
// the requested action did not take place
CommandUnknown = 500, ///< Syntax error, command unrecognized
ParametersUnknown = 501, ///< Syntax error in parameters or arguments
CommandNotImplemented = 502, ///< Command not implemented
BadCommandSequence = 503, ///< Bad sequence of commands
ParameterNotImplemented = 504, ///< Command not implemented for that parameter
NotLoggedIn = 530, ///< Not logged in
NeedAccountToStore = 532, ///< Need account for storing files
FileUnavailable = 550, ///< Requested action not taken, file unavailable
PageTypeUnknown = 551, ///< Requested action aborted, page type unknown
NotEnoughMemory = 552, ///< Requested file action aborted, exceeded storage allocation
FilenameNotAllowed = 553, ///< Requested action not taken, file name not allowed
// 10xx: SFML custom codes
InvalidResponse = 1000, ///< Not part of the FTP standard, generated by SFML when a received response cannot be parsed
ConnectionFailed = 1001, ///< Not part of the FTP standard, generated by SFML when the low-level socket connection with the server fails
ConnectionClosed = 1002, ///< Not part of the FTP standard, generated by SFML when the low-level socket connection is unexpectedly closed
InvalidFile = 1003 ///< Not part of the FTP standard, generated by SFML when a local file cannot be read or written
};
////////////////////////////////////////////////////////////
/// \brief Default constructor
///
/// This constructor is used by the FTP client to build
/// the response.
///
/// \param code Response status code
/// \param message Response message
///
////////////////////////////////////////////////////////////
explicit Response(Status code = InvalidResponse, const std::string& message = "");
////////////////////////////////////////////////////////////
/// \brief Check if the status code means a success
///
/// This function is defined for convenience, it is
/// equivalent to testing if the status code is < 400.
///
/// \return True if the status is a success, false if it is a failure
///
////////////////////////////////////////////////////////////
bool isOk() const;
////////////////////////////////////////////////////////////
/// \brief Get the status code of the response
///
/// \return Status code
///
////////////////////////////////////////////////////////////
Status getStatus() const;
////////////////////////////////////////////////////////////
/// \brief Get the full message contained in the response
///
/// \return The response message
///
////////////////////////////////////////////////////////////
const std::string& getMessage() const;
private:
////////////////////////////////////////////////////////////
// Member data
////////////////////////////////////////////////////////////
Status m_status; ///< Status code returned from the server
std::string m_message; ///< Last message received from the server
};
////////////////////////////////////////////////////////////
/// \brief Specialization of FTP response returning a directory
///
////////////////////////////////////////////////////////////
class SFML_NETWORK_API DirectoryResponse : public Response
{
public:
////////////////////////////////////////////////////////////
/// \brief Default constructor
///
/// \param response Source response
///
////////////////////////////////////////////////////////////
DirectoryResponse(const Response& response);
////////////////////////////////////////////////////////////
/// \brief Get the directory returned in the response
///
/// \return Directory name
///
////////////////////////////////////////////////////////////
const std::string& getDirectory() const;
private:
////////////////////////////////////////////////////////////
// Member data
////////////////////////////////////////////////////////////
std::string m_directory; ///< Directory extracted from the response message
};
////////////////////////////////////////////////////////////
/// \brief Specialization of FTP response returning a
/// filename listing
////////////////////////////////////////////////////////////
class SFML_NETWORK_API ListingResponse : public Response
{
public:
////////////////////////////////////////////////////////////
/// \brief Default constructor
///
/// \param response Source response
/// \param data Data containing the raw listing
///
////////////////////////////////////////////////////////////
ListingResponse(const Response& response, const std::string& data);
////////////////////////////////////////////////////////////
/// \brief Return the array of directory/file names
///
/// \return Array containing the requested listing
///
////////////////////////////////////////////////////////////
const std::vector<std::string>& getListing() const;
private:
////////////////////////////////////////////////////////////
// Member data
////////////////////////////////////////////////////////////
std::vector<std::string> m_listing; ///< Directory/file names extracted from the data
};
////////////////////////////////////////////////////////////
/// \brief Destructor
///
/// Automatically closes the connection with the server if
/// it is still opened.
///
////////////////////////////////////////////////////////////
~Ftp();
////////////////////////////////////////////////////////////
/// \brief Connect to the specified FTP server
///
/// The port has a default value of 21, which is the standard
/// port used by the FTP protocol. You shouldn't use a different
/// value, unless you really know what you do.
/// This function tries to connect to the server so it may take
/// a while to complete, especially if the server is not
/// reachable. To avoid blocking your application for too long,
/// you can use a timeout. The default value, Time::Zero, means that the
/// system timeout will be used (which is usually pretty long).
///
/// \param server Name or address of the FTP server to connect to
/// \param port Port used for the connection
/// \param timeout Maximum time to wait
///
/// \return Server response to the request
///
/// \see disconnect
///
////////////////////////////////////////////////////////////
Response connect(const IpAddress& server, unsigned short port = 21, Time timeout = Time::Zero);
////////////////////////////////////////////////////////////
/// \brief Close the connection with the server
///
/// \return Server response to the request
///
/// \see connect
///
////////////////////////////////////////////////////////////
Response disconnect();
////////////////////////////////////////////////////////////
/// \brief Log in using an anonymous account
///
/// Logging in is mandatory after connecting to the server.
/// Users that are not logged in cannot perform any operation.
///
/// \return Server response to the request
///
////////////////////////////////////////////////////////////
Response login();
////////////////////////////////////////////////////////////
/// \brief Log in using a username and a password
///
/// Logging in is mandatory after connecting to the server.
/// Users that are not logged in cannot perform any operation.
///
/// \param name User name
/// \param password Password
///
/// \return Server response to the request
///
////////////////////////////////////////////////////////////
Response login(const std::string& name, const std::string& password);
////////////////////////////////////////////////////////////
/// \brief Send a null command to keep the connection alive
///
/// This command is useful because the server may close the
/// connection automatically if no command is sent.
///
/// \return Server response to the request
///
////////////////////////////////////////////////////////////
Response keepAlive();
////////////////////////////////////////////////////////////
/// \brief Get the current working directory
///
/// The working directory is the root path for subsequent
/// operations involving directories and/or filenames.
///
/// \return Server response to the request
///
/// \see getDirectoryListing, changeDirectory, parentDirectory
///
////////////////////////////////////////////////////////////
DirectoryResponse getWorkingDirectory();
////////////////////////////////////////////////////////////
/// \brief Get the contents of the given directory
///
/// This function retrieves the sub-directories and files
/// contained in the given directory. It is not recursive.
/// The \a directory parameter is relative to the current
/// working directory.
///
/// \param directory Directory to list
///
/// \return Server response to the request
///
/// \see getWorkingDirectory, changeDirectory, parentDirectory
///
////////////////////////////////////////////////////////////
ListingResponse getDirectoryListing(const std::string& directory = "");
////////////////////////////////////////////////////////////
/// \brief Change the current working directory
///
/// The new directory must be relative to the current one.
///
/// \param directory New working directory
///
/// \return Server response to the request
///
/// \see getWorkingDirectory, getDirectoryListing, parentDirectory
///
////////////////////////////////////////////////////////////
Response changeDirectory(const std::string& directory);
////////////////////////////////////////////////////////////
/// \brief Go to the parent directory of the current one
///
/// \return Server response to the request
///
/// \see getWorkingDirectory, getDirectoryListing, changeDirectory
///
////////////////////////////////////////////////////////////
Response parentDirectory();
////////////////////////////////////////////////////////////
/// \brief Create a new directory
///
/// The new directory is created as a child of the current
/// working directory.
///
/// \param name Name of the directory to create
///
/// \return Server response to the request
///
/// \see deleteDirectory
///
////////////////////////////////////////////////////////////
Response createDirectory(const std::string& name);
////////////////////////////////////////////////////////////
/// \brief Remove an existing directory
///
/// The directory to remove must be relative to the
/// current working directory.
/// Use this function with caution, the directory will
/// be removed permanently!
///
/// \param name Name of the directory to remove
///
/// \return Server response to the request
///
/// \see createDirectory
///
////////////////////////////////////////////////////////////
Response deleteDirectory(const std::string& name);
////////////////////////////////////////////////////////////
/// \brief Rename an existing file
///
/// The filenames must be relative to the current working
/// directory.
///
/// \param file File to rename
/// \param newName New name of the file
///
/// \return Server response to the request
///
/// \see deleteFile
///
////////////////////////////////////////////////////////////
Response renameFile(const std::string& file, const std::string& newName);
////////////////////////////////////////////////////////////
/// \brief Remove an existing file
///
/// The file name must be relative to the current working
/// directory.
/// Use this function with caution, the file will be
/// removed permanently!
///
/// \param name File to remove
///
/// \return Server response to the request
///
/// \see renameFile
///
////////////////////////////////////////////////////////////
Response deleteFile(const std::string& name);
////////////////////////////////////////////////////////////
/// \brief Download a file from the server
///
/// The filename of the distant file is relative to the
/// current working directory of the server, and the local
/// destination path is relative to the current directory
/// of your application.
/// If a file with the same filename as the distant file
/// already exists in the local destination path, it will
/// be overwritten.
///
/// \param remoteFile Filename of the distant file to download
/// \param localPath The directory in which to put the file on the local computer
/// \param mode Transfer mode
///
/// \return Server response to the request
///
/// \see upload
///
////////////////////////////////////////////////////////////
Response download(const std::string& remoteFile, const std::string& localPath, TransferMode mode = Binary);
////////////////////////////////////////////////////////////
/// \brief Upload a file to the server
///
/// The name of the local file is relative to the current
/// working directory of your application, and the
/// remote path is relative to the current directory of the
/// FTP server.
///
/// \param localFile Path of the local file to upload
/// \param remotePath The directory in which to put the file on the server
/// \param mode Transfer mode
///
/// \return Server response to the request
///
/// \see download
///
////////////////////////////////////////////////////////////
Response upload(const std::string& localFile, const std::string& remotePath, TransferMode mode = Binary);
////////////////////////////////////////////////////////////
/// \brief Send a command to the FTP server
///
/// While the most often used commands are provided as member
/// functions in the sf::Ftp class, this method can be used
/// to send any FTP command to the server. If the command
/// requires one or more parameters, they can be specified
/// in \a parameter. If the server returns information, you
/// can extract it from the response using Response::getMessage().
///
/// \param command Command to send
/// \param parameter Command parameter
///
/// \return Server response to the request
///
////////////////////////////////////////////////////////////
Response sendCommand(const std::string& command, const std::string& parameter = "");
private:
////////////////////////////////////////////////////////////
/// \brief Receive a response from the server
///
/// This function must be called after each call to
/// sendCommand that expects a response.
///
/// \return Server response to the request
///
////////////////////////////////////////////////////////////
Response getResponse();
////////////////////////////////////////////////////////////
/// \brief Utility class for exchanging datas with the server
/// on the data channel
///
////////////////////////////////////////////////////////////
class DataChannel;
friend class DataChannel;
////////////////////////////////////////////////////////////
// Member data
////////////////////////////////////////////////////////////
TcpSocket m_commandSocket; ///< Socket holding the control connection with the server
std::string m_receiveBuffer; ///< Received command data that is yet to be processed
};
} // namespace sf
#endif // SFML_FTP_HPP
////////////////////////////////////////////////////////////
/// \class sf::Ftp
/// \ingroup network
///
/// sf::Ftp is a very simple FTP client that allows you
/// to communicate with a FTP server. The FTP protocol allows
/// you to manipulate a remote file system (list files,
/// upload, download, create, remove, ...).
///
/// Using the FTP client consists of 4 parts:
/// \li Connecting to the FTP server
/// \li Logging in (either as a registered user or anonymously)
/// \li Sending commands to the server
/// \li Disconnecting (this part can be done implicitly by the destructor)
///
/// Every command returns a FTP response, which contains the
/// status code as well as a message from the server. Some
/// commands such as getWorkingDirectory() and getDirectoryListing()
/// return additional data, and use a class derived from
/// sf::Ftp::Response to provide this data. The most often used
/// commands are directly provided as member functions, but it is
/// also possible to use specific commands with the sendCommand() function.
///
/// Note that response statuses >= 1000 are not part of the FTP standard,
/// they are generated by SFML when an internal error occurs.
///
/// All commands, especially upload and download, may take some
/// time to complete. This is important to know if you don't want
/// to block your application while the server is completing
/// the task.
///
/// Usage example:
/// \code
/// // Create a new FTP client
/// sf::Ftp ftp;
///
/// // Connect to the server
/// sf::Ftp::Response response = ftp.connect("ftp://ftp.myserver.com");
/// if (response.isOk())
/// std::cout << "Connected" << std::endl;
///
/// // Log in
/// response = ftp.login("laurent", "dF6Zm89D");
/// if (response.isOk())
/// std::cout << "Logged in" << std::endl;
///
/// // Print the working directory
/// sf::Ftp::DirectoryResponse directory = ftp.getWorkingDirectory();
/// if (directory.isOk())
/// std::cout << "Working directory: " << directory.getDirectory() << std::endl;
///
/// // Create a new directory
/// response = ftp.createDirectory("files");
/// if (response.isOk())
/// std::cout << "Created new directory" << std::endl;
///
/// // Upload a file to this new directory
/// response = ftp.upload("local-path/file.txt", "files", sf::Ftp::Ascii);
/// if (response.isOk())
/// std::cout << "File uploaded" << std::endl;
///
/// // Send specific commands (here: FEAT to list supported FTP features)
/// response = ftp.sendCommand("FEAT");
/// if (response.isOk())
/// std::cout << "Feature list:\n" << response.getMessage() << std::endl;
///
/// // Disconnect from the server (optional)
/// ftp.disconnect();
/// \endcode
///
////////////////////////////////////////////////////////////