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fixes and improvements to FTP(S)ClientSession

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This commit is contained in:
Günter Obiltschnig
2020-01-23 17:55:30 +01:00
parent 878b8bbeca
commit d65bf03a83
10 changed files with 336 additions and 98 deletions
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75
Net/include/Poco/Net/FTPClientSession.h
View File

@@ -51,40 +51,37 @@ public:
{
FTP_PORT = 21
};
enum FileType
{
TYPE_TEXT, // TYPE A (ASCII)
TYPE_BINARY // TYPE I (Image)
TYPE_TEXT, /// TYPE A (ASCII)
TYPE_BINARY /// TYPE I (Image/binary data)
};
FTPClientSession();
/// Creates an FTPClientSession.
///
/// Passive mode will be used for data transfers.
explicit FTPClientSession(const StreamSocket& socket, bool readWelcomeMessage = true);
FTPClientSession(const StreamSocket& socket, bool readWelcomeMessage = true);
/// Creates an FTPClientSession using the given
/// connected socket for the control connection.
///
/// Passive mode will be used for data transfers.
FTPClientSession(const std::string& host,
Poco::UInt16 port = FTP_PORT,
const std::string& username = "",
const std::string& password = "");
FTPClientSession(const std::string& host, Poco::UInt16 port = FTP_PORT, const std::string& username = "", const std::string& password = "");
/// Creates an FTPClientSession using a socket connected
/// to the given host and port. If username is supplied,
/// login is attempted.
///
/// Passive mode will be used for data transfers.
virtual ~FTPClientSession();
/// Destroys the FTPClientSession.
void setTimeout(const Poco::Timespan& timeout);
/// Sets the timeout for socket operations.
Poco::Timespan getTimeout() const;
/// Returns the timeout for socket operations.
@@ -95,14 +92,11 @@ public:
/// EPSV command is used (with a fallback to PASV if EPSV fails)
/// for switching to passive mode. The same applies to
/// EPRT and PORT for active connections.
bool getPassive() const;
/// Returns true iff passive mode is enabled for this connection.
virtual void open(const std::string& host,
Poco::UInt16 port,
const std::string& username = "",
const std::string& password = "");
virtual void open(const std::string& host, Poco::UInt16 port, const std::string& username = "", const std::string& password = "");
/// Opens the FTP connection to the given host and port.
/// If username is supplied, login is attempted.
@@ -117,18 +111,21 @@ public:
/// NetException in case of a general network communication failure.
void logout();
/// Logs out from the server by sending a QUIT command. Any transfer
/// that's in progress is ended. The control connection is kept
/// open.
void close();
/// Sends a QUIT command and closes the connection to the server.
///
/// Throws a FTPException in case of a FTP-specific error, or a
/// NetException in case of a general network communication failure.
std::string systemType();
/// Returns the system type of the FTP server.
///
/// Sends a SYST command to the server and returns the result.
void setFileType(FileType type);
/// Sets the file type for transferring files.
///
@@ -144,7 +141,7 @@ public:
void setWorkingDirectory(const std::string& path);
/// Changes the current working directory on the server.
///
/// Sends a CWD command with the given path as argument to the
/// Sends a CWD command with the given path as argument to the
/// server.
///
/// Throws a FTPException in case of a FTP-specific error, or a
@@ -155,7 +152,7 @@ public:
///
/// Throws a FTPException in case of a FTP-specific error, or a
/// NetException in case of a general network communication failure.
void cdup();
/// Moves one directory up from the current working directory
/// on the server.
@@ -164,7 +161,7 @@ public:
///
/// Throws a FTPException in case of a FTP-specific error, or a
/// NetException in case of a general network communication failure.
void rename(const std::string& oldName, const std::string& newName);
/// Renames the file on the server given by oldName to newName.
///
@@ -172,7 +169,7 @@ public:
///
/// Throws a FTPException in case of a FTP-specific error, or a
/// NetException in case of a general network communication failure.
void remove(const std::string& path);
/// Deletes the file specified by path on the server.
///
@@ -217,11 +214,11 @@ public:
/// the native text file format.
/// The InputLineEndingConverter class from the Foundation
/// library can be used for that purpose.
void endDownload();
/// Must be called to complete a download initiated with
/// beginDownload().
std::ostream& beginUpload(const std::string& path);
/// Starts uploading the file with the given name.
/// After all data has been written to the returned stream,
@@ -274,9 +271,9 @@ public:
/// client waits for a connection request from the server.
/// After establishing the data connection, a SocketStream
/// for transferring the data is created.
void endList();
/// Must be called to complete a directory listing download
/// Must be called to complete a directory listing download
/// initiated with beginList().
void abort();
@@ -287,7 +284,7 @@ public:
///
/// A separate call to endDownload() or endUpload() is
/// not necessary.
int sendCommand(const std::string& command, std::string& response);
/// Sends the given command verbatim to the server
/// and waits for a response.
@@ -304,13 +301,12 @@ public:
bool isSecure() const;
/// Returns true if the session is FTPS.
const std::string& welcomeMessage();
/// Returns welcome message.
/// Returns the welcome message.
protected:
virtual void receiveServerReadyReply();
/// Function that read server welcome message after connetion
enum StatusClass
{
@@ -320,9 +316,10 @@ protected:
FTP_TRANSIENT_NEGATIVE = 4,
FTP_PERMANENT_NEGATIVE = 5
};
enum
{
DEFAULT_TIMEOUT = 30000000 // 30 seconds default timeout for socket operations
DEFAULT_TIMEOUT = 30000000 // 30 seconds default timeout for socket operations
};
static bool isPositivePreliminary(int status);
@@ -343,16 +340,16 @@ protected:
void parseAddress(const std::string& str, SocketAddress& addr);
void parseExtAddress(const std::string& str, SocketAddress& addr);
void endTransfer();
DialogSocket* _pControlSocket = nullptr;
SocketStream* _pDataStream = nullptr;
private:
FTPClientSession(const FTPClientSession&);
FTPClientSession& operator = (const FTPClientSession&);
std::string _host;
Poco::UInt16 _port = 0;
Poco::UInt16 _port = FTP_PORT;
bool _passiveMode = true;
FileType _fileType = TYPE_BINARY;
bool _supports1738 = true;
@@ -360,7 +357,7 @@ private:
bool _isLoggedIn = false;
Poco::Timespan _timeout = DEFAULT_TIMEOUT;
std::string _welcomeMessage;
Poco::FastMutex _wmMutex;
Poco::FastMutex _wmMutex;
};

18
Net/include/Poco/Net/FTPStreamFactory.h
View File

@@ -30,8 +30,8 @@ namespace Net {
class Net_API FTPPasswordProvider
/// The base class for all password providers.
/// An instance of a subclass of this class can be
/// registered with the FTPStreamFactory to
/// provide a password
/// registered with the FTPStreamFactory to
/// provide a password.
{
public:
virtual std::string password(const std::string& username, const std::string& host) = 0;
@@ -56,7 +56,7 @@ class Net_API FTPStreamFactory: public Poco::URIStreamFactory
/// the FTP URL format specified in RFC 1738.
///
/// If the URI does not contain a username and password, the
/// username "anonymous" and the password "
/// username "anonymous" and the password "poco@localhost".
{
public:
FTPStreamFactory();
@@ -64,13 +64,13 @@ public:
~FTPStreamFactory();
/// Destroys the FTPStreamFactory.
std::istream* open(const Poco::URI& uri);
/// Creates and opens a HTTP stream for the given URI.
/// The URI must be a ftp://... URI.
///
/// Throws a NetException if anything goes wrong.
static void setAnonymousPassword(const std::string& password);
/// Sets the password used for anonymous FTP.
///
@@ -78,10 +78,10 @@ public:
/// thread-safe, so it's best to call this method
/// during application initialization, before the
/// FTPStreamFactory is used for the first time.
static const std::string& getAnonymousPassword();
/// Returns the password used for anonymous FTP.
static void setPasswordProvider(FTPPasswordProvider* pProvider);
/// Sets the FTPPasswordProvider. If NULL is given,
/// no password provider is used.
@@ -90,7 +90,7 @@ public:
/// thread-safe, so it's best to call this method
/// during application initialization, before the
/// FTPStreamFactory is used for the first time.
static FTPPasswordProvider* getPasswordProvider();
/// Returns the FTPPasswordProvider currently in use,
/// or NULL if no one has been set.
@@ -107,7 +107,7 @@ protected:
static void splitUserInfo(const std::string& userInfo, std::string& username, std::string& password);
static void getUserInfo(const Poco::URI& uri, std::string& username, std::string& password);
static void getPathAndType(const Poco::URI& uri, std::string& path, char& type);
private:
static std::string _anonymousPassword;
static FTPPasswordProvider* _pPasswordProvider;