CkFtp2 Java Reference Documentation

CkFtp2

Current Version: 9.5.0.97

Commercial File Transfer Protocol (FTP) Component.

Object Creation

CkFtp2 obj = new CkFtp2();

Properties

AbortCurrent
boolean get_AbortCurrent();
void put_AbortCurrent(boolean newVal);
Introduced in version 9.5.0.58

When set to true, causes the currently running method to abort. Methods that always finish quickly (i.e.have no lengthy file operations or network communications) are not affected. If no method is running, then this property is automatically reset to false when the next method is called. When the abort occurs, this property is reset to false. Both synchronous and asynchronous method calls can be aborted. (A synchronous method call could be aborted by setting this property from a separate thread.)

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Account
void get_Account(CkString str);
String account();
void put_Account(String newVal);

Some FTP servers require an Account name in addition to login/password. This property can be set for those servers with this requirement.

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ActivePortRangeEnd
int get_ActivePortRangeEnd();
void put_ActivePortRangeEnd(int newVal);

When Active (i.e. PORT) mode is used (opposite of Passive), the client-side is responsible for choosing a random port for each data connection. (Note: In the FTP protocol, each data transfer occurs on a separate TCP/IP connection. Commands are sent over the control channel (port 21 for non-SSL, port 990 for SSL).)

This property, along with ActivePortRangeStart, allows the client to specify a range of ports for data connections.

More Information and Examples
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ActivePortRangeStart
int get_ActivePortRangeStart();
void put_ActivePortRangeStart(int newVal);

This property, along with ActivePortRangeEnd, allows the client to specify a range of ports for data connections when in Active mode.

More Information and Examples
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AllocateSize
int get_AllocateSize();
void put_AllocateSize(int newVal);

If set to a non-zero value, causes an ALLO command, with this size as the parameter, to be automatically sent when uploading files to an FTP server.

This command could be required by some servers to reserve sufficient storage space to accommodate the new file to be transferred.

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AllowMlsd
boolean get_AllowMlsd();
void put_AllowMlsd(boolean newVal);
Introduced in version 9.5.0.50

If true, then uses the MLSD command to fetch directory listings when the FTP server supports MLSD. This property is true by default.

When MLSD is used, the GetPermissions method will return the "perm fact" for a given file or directory. This is a different format than the more commonly recognized UNIX permissions string. Note: MLSD provides more accurate and dependable file listings, especially for last-mod date/time information. If usage of the MLSD command is turned off, it may adversely affect the quality and availability of other information.

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AsyncBytesReceived
int get_AsyncBytesReceived();

The number of bytes received during an asynchronous FTP download. This property is updated in real-time and an application may periodically fetch and display it's value while the download is in progress.

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AsyncBytesReceived64
long long get_AsyncBytesReceived64();

Same as AsyncBytesReceived, but returns the value as a 64-bit integer.

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AsyncBytesReceivedStr
void get_AsyncBytesReceivedStr(CkString str);
String asyncBytesReceivedStr();

The number of bytes received during an asynchronous FTP download. This property is updated in real-time and an application may periodically fetch and display it's value while the download is in progress.

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AsyncBytesSent
int get_AsyncBytesSent();

The number of bytes sent during an asynchronous FTP upload. This property is updated in real-time and an application may periodically fetch and display it's value while the upload is in progress.

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AsyncBytesSent64
long long get_AsyncBytesSent64();

Same as AsyncBytesSent, but returns the value as a 64-bit integer.

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AsyncBytesSentStr
void get_AsyncBytesSentStr(CkString str);
String asyncBytesSentStr();

The number of bytes sent during an asynchronous FTP upload. This string property is updated in real-time and an application may periodically fetch and display it's value while the upload is in progress.

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AuthSsl
boolean get_AuthSsl();
void put_AuthSsl(boolean newVal);

Same as AuthTls, except the command sent to the FTP server is "AUTH SSL" instead of "AUTH TLS". Most FTP servers accept either. AuthTls is more commonly used. If a particular server has trouble with AuthTls, try AuthSsl instead.

More Information and Examples
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AuthTls
boolean get_AuthTls();
void put_AuthTls(boolean newVal);

Set this to true to switch to a TLS encrypted channel. This property should be set prior to connecting. If this property is set, the port typically remains at it's default (21) and the Ssl property should *not* be set. When AuthTls is used, all control and data transmissions are encrypted. If your FTP client is behind a network-address-translating router, you may need to call ClearControlChannel after connecting and authenticating (i.e. after calling the Connect method). This keeps all data transmissions encrypted, but clears the control channel so that commands are sent unencrypted, thus allowing the router to translate network IP numbers in FTP commands.

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AutoFeat
boolean get_AutoFeat();
void put_AutoFeat(boolean newVal);

When true (which is the default value), a "FEAT" command is automatically sent to the FTP server immediately after connecting. This allows the Chilkat FTP2 component to know more about the server's capabilities and automatically adjust any applicable internal settings based on the response. In rare cases, some FTP servers reject the "FEAT" command and close the connection. Usually, if an FTP server does not implement FEAT, a harmless "command not understood" response is returned.

Set this property to false to prevent the FEAT command from being sent.

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AutoFix
boolean get_AutoFix();
void put_AutoFix(boolean newVal);

If true, then the following will occur when a connection is made to an FTP server:

1) If the Port property = 990, then sets AuthTls = false, AuthSsl = false, and Ssl = true
2) If the Port property = 21, sets Ssl = false

The default value of this property is true.

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AutoGetSizeForProgress
boolean get_AutoGetSizeForProgress();
void put_AutoGetSizeForProgress(boolean newVal);

Forces the component to retrieve each file's size prior to downloading for the purpose of monitoring percentage completion progress. For many FTP servers, this is not required and therefore for performance reasons this property defaults to false.

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AutoOptsUtf8
boolean get_AutoOptsUtf8();
void put_AutoOptsUtf8(boolean newVal);
Introduced in version 9.5.0.47

When true (which is the default value), then an "OPTS UTF8 ON" command is automatically sent when connecting/authenticating if it is discovered via the FEAT command that the UTF8 option is supported.

Set this property to false to prevent the "OPTS UTF8 ON" command from being sent.

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AutoSetUseEpsv
boolean get_AutoSetUseEpsv();
void put_AutoSetUseEpsv(boolean newVal);
Introduced in version 9.5.0.44

If true then the UseEpsv property is automatically set upon connecting to the FTP server. The default value of this property is false.

If the AutoFeat property is true, and if the AutoSetUseEpsv property is true, then the FTP server's features are automatically queried when connecting. In this case, the UseEpsv property is automatically set to true if the FTP server supports EPSV.

Important: EPSV can cause problems with some deep-inspection firewalls. If a passive data connection cannot be established, make sure to test with both the AutoSetUseEpsv and UseEpsv properties set equal to false.

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AutoSyst
boolean get_AutoSyst();
void put_AutoSyst(boolean newVal);

When true (which is the default value), a "SYST" command is automatically sent to the FTP server immediately after connecting. This allows the Chilkat FTP2 component to know more about the server and automatically adjust any applicable internal settings based on the response. If the SYST command causes trouble (which is rare), this behavior can be turned off by setting this property equal to false.

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AutoXcrc
boolean get_AutoXcrc();
void put_AutoXcrc(boolean newVal);

Many FTP servers support the XCRC command. The Chilkat FTP component will automatically know if XCRC is supported because it automatically sends a FEAT command to the server immediately after connecting.

If this property is set to true, then all uploads will be automatically verified by sending an XCRC command immediately after the transfer completes. If the CRC is not verified, the upload method (such as PutFile) will return a failed status.

To prevent XCRC checking, set this property to false.

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BandwidthThrottleDown
int get_BandwidthThrottleDown();
void put_BandwidthThrottleDown(int newVal);

If set to a non-zero value, the FTP2 component will bandwidth throttle all downloads to this value.

The default value of this property is 0. The value should be specified in bytes/second.

Note: It is difficult to throttle very small downloads. (For example, how do you bandwidth throttle a 1-byte download???) As the downloaded file size gets larger, the transfer rate will better approximate this property's setting.

Also note: When downloading, the FTP server has no knowledge of the client's desire for throttling, and is always sending data as fast as possible. (There's nothing in the FTP protocol to request throttling.) Therefore, any throttling for a download on the client side is simply to allow system socket buffers (outgoing buffers on the sender, and incoming buffers on the client) to fill to 100% capacity, and this also poses the threat of causing a data connection to become broken. It's probably not worthwhile to attempt to throttle downloads. It may have been better that this property never existed.

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BandwidthThrottleUp
int get_BandwidthThrottleUp();
void put_BandwidthThrottleUp(int newVal);

If set to a non-zero value, the FTP2 component will bandwidth throttle all uploads to this value.

The default value of this property is 0. The value should be specified in bytes/second.

Note: It is difficult to throttle very small uploads. (For example, how do you bandwidth throttle a 1-byte upload???) As the uploaded file size gets larger, the transfer rate will better approximate this property's setting.

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ClientIpAddress
void get_ClientIpAddress(CkString str);
String clientIpAddress();
void put_ClientIpAddress(String newVal);

The IP address to use for computers with multiple network interfaces or IP addresses. For computers with a single network interface (i.e. most computers), this property should not be set. For multihoming computers, the default IP address is automatically used if this property is not set.

The IP address is a string such as in dotted notation using numbers, not domain names, such as "165.164.55.124".

More Information and Examples
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CommandCharset
void get_CommandCharset(CkString str);
String commandCharset();
void put_CommandCharset(String newVal);

Indicates the charset to be used for commands sent to the FTP server. The command charset must match what the FTP server is expecting in order to communicate non-English characters correctly. The default value of this property is "ansi".

This property may be updated to "utf-8" after connecting because a "FEAT" command is automatically sent to get the features of the FTP server. If UTF8 is indicated as a feature, then this property is automatically changed to "utf-8".

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ConnectFailReason
int get_ConnectFailReason();

If the Connect method fails, this property can be checked to determine the reason for failure.

Possible values are:

0 = success

Normal (non-TLS) sockets:
1 = empty hostname
2 = DNS lookup failed
3 = DNS timeout
4 = Aborted by application.
5 = Internal failure.
6 = Connect Timed Out
7 = Connect Rejected (or failed for some other reason)

SSL/TLS:
100 = TLS internal error.
101 = Failed to send client hello.
102 = Unexpected handshake message.
103 = Failed to read server hello.
104 = No server certificate.
105 = Unexpected TLS protocol version.
106 = Server certificate verify failed (the server certificate is expired or the cert's signature verification failed).
107 = Unacceptable TLS protocol version.
109 = Failed to read handshake messages.
110 = Failed to send client certificate handshake message.
111 = Failed to send client key exchange handshake message.
112 = Client certificate's private key not accessible.
113 = Failed to send client cert verify handshake message.
114 = Failed to send change cipher spec handshake message.
115 = Failed to send finished handshake message.
116 = Server's Finished message is invalid.

FTP:
200 = Connected, but failed to receive greeting from FTP server.
201 = Failed to do AUTH TLS or AUTH SSL.
Protocol/Component:
300 = asynch op in progress
301 = login failure.

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ConnectTimeout
int get_ConnectTimeout();
void put_ConnectTimeout(int newVal);

Maximum number of seconds to wait when connecting to an FTP server. The default is 30 seconds. A value of 0 indicates the willingness to wait forever.

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ConnectVerified
boolean get_ConnectVerified();

True if the FTP2 component was able to establish a TCP/IP connection to the FTP server after calling Connect.

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CrlfMode
int get_CrlfMode();
void put_CrlfMode(int newVal);

Used to control CRLF line endings when downloading text files in ASCII mode. The default value is 0.

Possible values are:

0 = Do nothing.  The line-endings are not modified as received from the FTP server.
1 = Convert all line-endings to CR+LF
2 = Convert all line-endings to bare LF's
3 = Convert all line-endings to bare CR's

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DataProtection
void get_DataProtection(CkString str);
String dataProtection();
void put_DataProtection(String newVal);
Introduced in version 9.5.0.52

Controls the data protection level for the data connections. Possible values are "control", "clear", or "private".

  • "control" is the default, and the data connections will be the same as for the control connection. If the control connection is SSL/TLS, then the data connections are also SSL/TLS. If the control connection is unencrypted, then the data connections will also be unencrypted.
  • "clear" means that the data connections will always be unencrypted (TCP without TLS).
  • "private" means that the data connections will always be encrypted (TLS).

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DebugLogFilePath
void get_DebugLogFilePath(CkString str);
String debugLogFilePath();
void put_DebugLogFilePath(String newVal);

If set to a file path, causes each Chilkat method or property call to automatically append it's LastErrorText to the specified log file. The information is appended such that if a hang or crash occurs, it is possible to see the context in which the problem occurred, as well as a history of all Chilkat calls up to the point of the problem. The VerboseLogging property can be set to provide more detailed information.

This property is typically used for debugging the rare cases where a Chilkat method call hangs or generates an exception that halts program execution (i.e. crashes). A hang or crash should generally never happen. The typical causes of a hang are:

  1. a timeout related property was set to 0 to explicitly indicate that an infinite timeout is desired,
  2. the hang is actually a hang within an event callback (i.e. it is a hang within the application code), or
  3. there is an internal problem (bug) in the Chilkat code that causes the hang.

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DirListingCharset
void get_DirListingCharset(CkString str);
String dirListingCharset();
void put_DirListingCharset(String newVal);

Indicates the charset of the directory listings received from the FTP server. The FTP2 client must interpret the directory listing bytes using the correct character encoding in order to correctly receive non-English characters. The default value of this property is "ansi".

This property may be updated to "utf-8" after connecting because a "FEAT" command is automatically sent to get the features of the FTP server. If UTF8 is indicated as a feature, then this property is automatically changed to "utf-8".

More Information and Examples
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DownloadTransferRate
int get_DownloadTransferRate();

The average download rate in bytes/second. This property is updated in real-time during any FTP download (asynchronous or synchronous).

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ForcePortIpAddress
void get_ForcePortIpAddress(CkString str);
String forcePortIpAddress();
void put_ForcePortIpAddress(String newVal);

If set, forces the IP address used in the PORT command for Active mode (i.e. non-passive) data transfers. This string property should be set to the IP address in dotted notation, such as "233.190.65.31".

Note: This property can also be set to the special keyword "control" to force the PORT IP address to be the address of the control connection's peer.

Starting in v9.5.0.58, the IP address can be prefixed with the string "bind-". For example, "bind-233.190.65.31". When "bind-" is specified, the local data socket will be bound to the IP address when created. Otherwise, the IP address is only used as the argument to the PORT command that is sent to the server.

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Greeting
void get_Greeting(CkString str);
String greeting();

The initial greeting received from the FTP server after connecting.

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HasModeZ
boolean get_HasModeZ();

Chilkat FTP2 supports MODE Z, which is a transfer mode implemented by some FTP servers. It allows for files to be uploaded and downloaded using compressed streams (using the zlib deflate algorithm). This is a read-only property. It will be set to true if the FTP2 component detects that your FTP server supports MODE Z. Otherwise it is set to false.

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HeartbeatMs
int get_HeartbeatMs();
void put_HeartbeatMs(int newVal);

This is the number of milliseconds between each AbortCheck event callback. The AbortCheck callback allows an application to abort any FTP operation prior to completion. If HeartbeatMs is 0, no AbortCheck event callbacks will occur. Also, AbortCheck callbacks do not occur when doing asynchronous transfers.

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Hostname
void get_Hostname(CkString str);
String hostname();
void put_Hostname(String newVal);

The domain name of the FTP server. May also use the IPv4 or IPv6 address in string format.

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HttpProxyAuthMethod
void get_HttpProxyAuthMethod(CkString str);
String httpProxyAuthMethod();
void put_HttpProxyAuthMethod(String newVal);

If an HTTP proxy requiring authentication is to be used, set this property to the HTTP proxy authentication method name. Valid choices are "Basic" or "NTLM".

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HttpProxyDomain
void get_HttpProxyDomain(CkString str);
String httpProxyDomain();
void put_HttpProxyDomain(String newVal);

If an HTTP proxy is used, and it uses NTLM authentication, then this optional property is the NTLM authentication domain.

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HttpProxyHostname
void get_HttpProxyHostname(CkString str);
String httpProxyHostname();
void put_HttpProxyHostname(String newVal);

If an HTTP proxy is to be used, set this property to the HTTP proxy hostname or IPv4 address (in dotted decimal notation).

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HttpProxyPassword
void get_HttpProxyPassword(CkString str);
String httpProxyPassword();
void put_HttpProxyPassword(String newVal);

If an HTTP proxy requiring authentication is to be used, set this property to the HTTP proxy password.

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HttpProxyPort
int get_HttpProxyPort();
void put_HttpProxyPort(int newVal);

If an HTTP proxy is to be used, set this property to the HTTP proxy port number. (Two commonly used HTTP proxy ports are 8080 and 3128.)

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HttpProxyUsername
void get_HttpProxyUsername(CkString str);
String httpProxyUsername();
void put_HttpProxyUsername(String newVal);

If an HTTP proxy requiring authentication is to be used, set this property to the HTTP proxy login name.

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IdleTimeoutMs
int get_IdleTimeoutMs();
void put_IdleTimeoutMs(int newVal);

The maximum amount of time, in milliseconds, to wait for a response on the control channel. A value of 0 means to wait indefinitely. The default value is 60000 (i.e. 60 seconds).

This is also the maximum amount of time to wait while paused during an upload because outgoing system socket buffers are full. If an upload hangs with no additional data sent for this amount of time (because the server is not consuming data on its end), then the upload will fail with a timeout.

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IsConnected
boolean get_IsConnected();

Important: This property is deprecated. Applications should instead call the CheckConnection method.

Returns true if currently connected and logged into an FTP server, otherwise returns false.

Note: Accessing this property may cause a NOOP command to be sent to the FTP server.

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KeepSessionLog
boolean get_KeepSessionLog();
void put_KeepSessionLog(boolean newVal);

Turns the in-memory session logging on or off. If on, the session log can be obtained via the SessionLog property.

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LargeFileMeasures
boolean get_LargeFileMeasures();
void put_LargeFileMeasures(boolean newVal);
Introduced in version 9.5.0.66

Enables internal features that can help when uploading or downloading extremely large files. In some cases, if the time required to transfer a file is long, the control connection is closed by the server or other network infrastructure because it was idle for so long. Setting this property equal to true will keep the control connection very slightly used to prevent this from happening.

The default value of this property is false. This property should only be set to true if this sort of problem is encountered.

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LastErrorHtml
void get_LastErrorHtml(CkString str);
String lastErrorHtml();

Provides information in HTML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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LastErrorText
void get_LastErrorText(CkString str);
String lastErrorText();

Provides information in plain-text format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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LastErrorXml
void get_LastErrorXml(CkString str);
String lastErrorXml();

Provides information in XML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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LastMethodSuccess
boolean get_LastMethodSuccess();
void put_LastMethodSuccess(boolean newVal);

Indicate whether the last method call succeeded or failed. A value of true indicates success, a value of false indicates failure. This property is automatically set for method calls. It is not modified by property accesses. The property is automatically set to indicate success for the following types of method calls:

  • Any method that returns a string.
  • Any method returning a Chilkat object, binary bytes, or a date/time.
  • Any method returning a standard boolean status value where success = true and failure = false.
  • Any method returning an integer where failure is defined by a return value less than zero.

Note: Methods that do not fit the above requirements will always set this property equal to true. For example, a method that returns no value (such as a "void" in C++) will technically always succeed.

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LastReply
void get_LastReply(CkString str);
String lastReply();

Contains the last control-channel reply. For example: "550 Failed to change directory." or "250 Directory successfully changed." The control channel reply is typically formatted as an integer status code followed by a one-line description.

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ListPattern
void get_ListPattern(CkString str);
String listPattern();
void put_ListPattern(String newVal);

A wildcard pattern, defaulting to "*" that determines the files and directories included in the following properties and methods: GetDirCount, GetCreateTime, GetFilename, GetIsDirectory, GetLastAccessTime, GetModifiedTime, GetSize.

Note: Do not include a directory path in the ListPattern. For example, do not set the ListPattern equal to a string such as this: "subdir/*.txt". The correct solution is to first change the remote directory to "subdir" by calling ChangeRemoteDir, and then set the ListPattern equal to "*.txt".

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LoginVerified
boolean get_LoginVerified();

True if the FTP2 component was able to login to the FTP server after calling Connect.

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PartialTransfer
boolean get_PartialTransfer();

A read-only property that indicates whether a partial transfer was received in the last method call to download a file. Set to true if a partial transfer was received. Set to false if nothing was received, or if the full file was received.

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Passive
boolean get_Passive();
void put_Passive(boolean newVal);

Set to true for FTP to operate in passive mode, otherwise set to false for non-passive (.i.e. "active" or "port" mode). The default value of this property is true.

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PassiveUseHostAddr
boolean get_PassiveUseHostAddr();
void put_PassiveUseHostAddr(boolean newVal);

This can handle problems that may arise when an FTP server is located behind a NAT router. FTP servers respond to the PASV command by sending the IP address and port where it will be listening for the data connection. If the control connection is SSL encrypted, the NAT router is not able to convert from an internal IP address (typically beginning with 192.168) to an external address. When set to true, PassiveUseHostAddr property tells the FTP client to discard the IP address part of the PASV response and replace it with the IP address of the already-established control connection. The default value of this property is true.

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Password
void get_Password(CkString str);
String password();
void put_Password(String newVal);

Password for logging into the FTP server.

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PercentDoneScale
int get_PercentDoneScale();
void put_PercentDoneScale(int newVal);
Introduced in version 9.5.0.49

This property is only valid in programming environment and languages that allow for event callbacks.

Sets the value to be defined as 100% complete for the purpose of PercentDone event callbacks. The defaut value of 100 means that at most 100 event PercentDone callbacks will occur in a method that (1) is event enabled and (2) is such that it is possible to measure progress as a percentage completed. This property may be set to larger numbers to get more fine-grained PercentDone callbacks. For example, setting this property equal to 1000 will provide callbacks with .1 percent granularity. For example, a value of 453 would indicate 45.3% competed. This property is clamped to a minimum value of 10, and a maximum value of 100000.

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Port
int get_Port();
void put_Port(int newVal);

Port number. Automatically defaults to the default port for the FTP service.

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PreferIpv6
boolean get_PreferIpv6();
void put_PreferIpv6(boolean newVal);

If true, then use IPv6 over IPv4 when both are supported for a particular domain. The default value of this property is false, which will choose IPv4 over IPv6.

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PreferNlst
boolean get_PreferNlst();
void put_PreferNlst(boolean newVal);

If true, the NLST command is used instead of LIST when fetching a directory listing. This can help in very rare cases where the FTP server returns truncated filenames. The drawback to using NLST is that it won't return size or date/time info (but it should return the full filename).

The default value of this property is false.

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ProgressMonSize
int get_ProgressMonSize();
void put_ProgressMonSize(int newVal);

Progress monitoring for FTP downloads rely on the FTP server indicating the file size within the RETR response. Some FTP servers however, do not indicate the file size and therefore it is not possible to monitor progress based on percentage completion. This property allows the application to explicitly tell the FTP component the size of the file about to be downloaded for the next GetFile call.

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ProgressMonSize64
long long get_ProgressMonSize64();
void put_ProgressMonSize64(long long newVal);

Same as ProgressMonSize, but allows for sizes greater than the 32-bit integer limit.

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ProxyHostname
void get_ProxyHostname(CkString str);
String proxyHostname();
void put_ProxyHostname(String newVal);

The hostname of your FTP proxy, if a proxy server is used.

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ProxyMethod
int get_ProxyMethod();
void put_ProxyMethod(int newVal);

The proxy scheme used by your FTP proxy server. Valid values are 0 to 9. The default value is 0 which indicates that no proxy server is used. Supported proxy methods are as follows:

Note: The ProxyHostname is the hostname of the firewall, if the proxy is a firewall. Also, the ProxyUsername and ProxyPassword are the firewall username/password (if the proxy is a firewall).

ProxyMethod = 1 (SITE site)

USER ProxyUsername
PASS ProxyPassword
SITE Hostname
USER Username
PASS Password

ProxyMethod = 2 (USER user@site)

USER Username@Hostname:Port
PASS Password

ProxyMethod = 3 (USER with login)

USER ProxyUsername
PASS ProxyPassword
USER Username@Hostname:Port
PASS Password

ProxyMethod = 4 (USER/PASS/ACCT)

USER Username@Hostname:Port ProxyUsername
PASS Password
ACCT ProxyPassword

ProxyMethod = 5 (OPEN site)

USER ProxyUsername
PASS ProxyPassword
OPEN Hostname
USER Username
PASS Password

ProxyMethod = 6 (firewallId@site)

USER ProxyUsername@Hostname
USER Username
PASS Password

ProxyMethod = 7

USER ProxyUsername
USER ProxyPassword
SITE Hostname:Port USER Username
PASS Password

ProxyMethod = 8

USER Username@ProxyUsername@Hostname
PASS Password@ProxyPassword

ProxyMethod = 9

ProxyUsername ProxyPassword Username Password

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ProxyPassword
void get_ProxyPassword(CkString str);
String proxyPassword();
void put_ProxyPassword(String newVal);

The password for authenticating with the FTP proxy server.

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ProxyPort
int get_ProxyPort();
void put_ProxyPort(int newVal);

If an FTP proxy server is used, this is the port number at which the proxy server is listening for connections.

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ProxyUsername
void get_ProxyUsername(CkString str);
String proxyUsername();
void put_ProxyUsername(String newVal);

The username for authenticating with the FTP proxy server.

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ReadTimeout
int get_ReadTimeout();
void put_ReadTimeout(int newVal);

Forces a timeout when incoming data is expected on a data channel, but no data arrives for this number of seconds. The ReadTimeout is the amount of time that needs to elapse while no additional data is forthcoming. During a long download, if the data stream halts for more than this amount, it will timeout. Otherwise, there is no limit on the length of time for the entire download.

The default value is 60.

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RequireSslCertVerify
boolean get_RequireSslCertVerify();
void put_RequireSslCertVerify(boolean newVal);

If true, then the FTP2 client will verify the server's SSL certificate. The server's certificate signature is verified with its issuer, and the issuer's cert is verified with its issuer, etc. up to the root CA cert. If a signature verification fails, the connection is not allowed. Also, if the certificate is expired, or if the cert's signature is invalid, the connection is not allowed. The default value of this property is false.

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RestartNext
boolean get_RestartNext();
void put_RestartNext(boolean newVal);

Both uploads and downloads may be resumed by simply setting this property = true and re-calling the upload or download method.

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SessionLog
void get_SessionLog(CkString str);
String sessionLog();

Contains the session log if KeepSessionLog is turned on.

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SocksHostname
void get_SocksHostname(CkString str);
String socksHostname();
void put_SocksHostname(String newVal);

The SOCKS4/SOCKS5 hostname or IPv4 address (in dotted decimal notation). This property is only used if the SocksVersion property is set to 4 or 5).

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SocksPassword
void get_SocksPassword(CkString str);
String socksPassword();
void put_SocksPassword(String newVal);

The SOCKS5 password (if required). The SOCKS4 protocol does not include the use of a password, so this does not apply to SOCKS4.

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SocksPort
int get_SocksPort();
void put_SocksPort(int newVal);

The SOCKS4/SOCKS5 proxy port. The default value is 1080. This property only applies if a SOCKS proxy is used (if the SocksVersion property is set to 4 or 5).

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SocksUsername
void get_SocksUsername(CkString str);
String socksUsername();
void put_SocksUsername(String newVal);

The SOCKS4/SOCKS5 proxy username. This property is only used if the SocksVersion property is set to 4 or 5).

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SocksVersion
int get_SocksVersion();
void put_SocksVersion(int newVal);

SocksVersion May be set to one of the following integer values:

0 - No SOCKS proxy is used. This is the default.
4 - Connect via a SOCKS4 proxy.
5 - Connect via a SOCKS5 proxy.

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SoRcvBuf
int get_SoRcvBuf();
void put_SoRcvBuf(int newVal);

Sets the receive buffer size socket option. Normally, this property should be left unchanged. The default value is 4194304.

This property can be increased if download performance seems slow. It is recommended to be a multiple of 4096.

Note: This property only applies to FTP data connections. The FTP control connection is not used for uploading or downloading files, and is therefore not performance sensitive.

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SoSndBuf
int get_SoSndBuf();
void put_SoSndBuf(int newVal);

Sets the send buffer size socket option. Normally, this property should be left unchanged. The default value is 262144.

This property can be increased if upload performance seems slow. It is recommended to be a multiple of 4096. Testing with sizes such as 512K and 1MB is reasonable.

Note: This property only applies to FTP data connections. The FTP control connection is not used for uploading or downloading files, and is therefore not performance sensitive.

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Ssl
boolean get_Ssl();
void put_Ssl(boolean newVal);

Use TLS/SSL for FTP connections. You would typically set Ssl = true when connecting to port 990 on FTP servers that support TLS/SSL mode. Note: It is more common to use AuthTls.

More Information and Examples
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SslAllowedCiphers
void get_SslAllowedCiphers(CkString str);
String sslAllowedCiphers();
void put_SslAllowedCiphers(String newVal);
Introduced in version 9.5.0.48

Provides a means for setting a list of ciphers that are allowed for SSL/TLS connections. The default (empty string) indicates that all implemented ciphers are possible. The TLS ciphers supported in Chilkat v9.5.0.55 and later are:

TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
TLS_DHE_RSA_WITH_AES_256_CBC_SHA
TLS_RSA_WITH_AES_256_CBC_SHA256
TLS_RSA_WITH_AES_256_GCM_SHA384
TLS_RSA_WITH_AES_256_CBC_SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA
TLS_RSA_WITH_AES_128_CBC_SHA256
TLS_RSA_WITH_AES_128_GCM_SHA256
TLS_RSA_WITH_AES_128_CBC_SHA
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
TLS_ECDHE_RSA_WITH_RC4_128_SHA
TLS_RSA_WITH_RC4_128_SHA
TLS_RSA_WITH_RC4_128_MD5
TLS_DHE_RSA_WITH_DES_CBC_SHA
TLS_RSA_WITH_DES_CBC_SHA
To restrict SSL/TLS connections to one or more specific ciphers, set this property to a comma-separated list of ciphers such as "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384". The order should be in terms of preference, with the preferred algorithms listed first. (Note that the client cannot specifically choose the algorithm is picked because it is the server that chooses. The client simply provides the server with a list from which to choose.)

The property can also disallow connections with servers having certificates with RSA keys less than a certain size. By default, server certificates having RSA keys of 512 bits or greater are allowed. Add the keyword "rsa1024" to disallow connections with servers having keys smaller than 1024 bits. Add the keyword "rsa2048" to disallow connections with servers having keys smaller than 2048 bits.

Note: Prior to Chilkat v9.5.0.55, it was not possible to explicitly list allowed cipher suites. The deprecated means for indicating allowed ciphers was both incomplete and unprecise. For example, the following keywords could be listed to allow matching ciphers: "aes256-cbc", "aes128-cbc", "3des-cbc", and "rc4". These keywords will still be recognized, but programs should be updated to explicitly list the allowed ciphers.

secure-renegotiation: Starting in Chilkat v9.5.0.55, the keyword "secure-renegotiation" may be added to require that all renegotions be done securely (as per RFC 5746).

best-practices: Starting in Chilkat v9.5.0.55, this property may be set to the single keyword "best-practices". This will allow ciphers based on the current best practices. As new versions of Chilkat are released, the best practices may change. Changes will be noted here. The current best practices are:

  • If the server uses an RSA key, it must be 1024 bits or greater.
  • All renegotations must be secure renegotiations.
  • All ciphers using RC4, DES, or 3DES are disallowed.

Example: The following string would restrict to 2 specific cipher suites, require RSA keys to be 1024 bits or greater, and require secure renegotiations: "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, TLS_RSA_WITH_AES_256_CBC_SHA, rsa1024, secure-renegotiation"

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SslProtocol
void get_SslProtocol(CkString str);
String sslProtocol();
void put_SslProtocol(String newVal);

Selects the secure protocol to be used for secure (SSL/TLS) implicit and explicit (AUTH TLS / AUTH SSL) connections . Possible values are:

default
TLS 1.3
TLS 1.2
TLS 1.1
TLS 1.0
SSL 3.0
TLS 1.3 or higher
TLS 1.2 or higher
TLS 1.1 or higher
TLS 1.0 or higher
The default value is "default" which will choose the, which allows for the protocol to be selected dynamically at runtime based on the requirements of the server. Choosing an exact protocol will cause the connection to fail unless that exact protocol is negotiated. It is better to choose "X or higher" than an exact protocol. The "default" is effectively "SSL 3.0 or higher".

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SslServerCertVerified
boolean get_SslServerCertVerified();

Read-only property that returns true if the FTP server's digital certificate was verified when connecting via SSL / TLS.

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SyncCreateAllLocalDirs
boolean get_SyncCreateAllLocalDirs();
void put_SyncCreateAllLocalDirs(boolean newVal);
Introduced in version 9.5.0.76

If true, then empty directories on the server are created locally when doing a download synchronization. If false, then only directories containing files that are downloaded are auto-created.

The default value of this property is true.

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SyncedFiles
void get_SyncedFiles(CkString str);
String syncedFiles();
void put_SyncedFiles(String newVal);
Introduced in version 9.5.0.51

The paths of the files uploaded or downloaded in the last call to SyncDeleteTree, SyncLocalDir, SyncLocalTree, SyncRemoteTree, or SyncRemoteTree2. The paths are listed one per line. In both cases (for upload and download) each line contains the paths relative to the root synced directory.

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SyncMustMatch
void get_SyncMustMatch(CkString str);
String syncMustMatch();
void put_SyncMustMatch(String newVal);

Can contain a wildcarded list of file patterns separated by semicolons. For example, "*.xml; *.txt; *.csv". If set, the Sync* upload and download methods will only transfer files that match any one of these patterns. Pattern matching is case-insensitive.

Note: Starting in version 9.5.0.47, this property also applies to the DownloadTree and DirTreeXml methods.

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SyncMustMatchDir
void get_SyncMustMatchDir(CkString str);
String syncMustMatchDir();
void put_SyncMustMatchDir(String newVal);
Introduced in version 9.5.0.76

Can contain a wildcarded list of file patterns separated by semicolons. For example, "xml; txt; data_*". If set, the Sync* upload and download methods will only enter directories that match any one of these patterns. Pattern matching is case-insensitive.

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SyncMustNotMatch
void get_SyncMustNotMatch(CkString str);
String syncMustNotMatch();
void put_SyncMustNotMatch(String newVal);

Can contain a wildcarded list of file patterns separated by semicolons. For example, "*.xml; *.txt; *.csv". If set, the Sync* upload and download methods will not transfer files that match any one of these patterns. Pattern matching is case-insensitive.

Note: Starting in version 9.5.0.47, this property also applies to the DownloadTree and DirTreeXml methods.

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SyncMustNotMatchDir
void get_SyncMustNotMatchDir(CkString str);
String syncMustNotMatchDir();
void put_SyncMustNotMatchDir(String newVal);
Introduced in version 9.5.0.76

Can contain a wildcarded list of file patterns separated by semicolons. For example, "xml; txt; data_*". If set, the Sync* upload and download methods will enter directories that match any one of these patterns. Pattern matching is case-insensitive.

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SyncPreview
void get_SyncPreview(CkString str);
String syncPreview();

Contains the list of files that would be transferred in a call to SyncRemoteTree2 when the previewOnly argument is set to true. This string property contains one filepath per line, separated by CRLF line endings. After SyncRemoteTree2 is called, this property contains the filepaths of the local files that would be uploaded to the FTP server.

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TlsCipherSuite
void get_TlsCipherSuite(CkString str);
String tlsCipherSuite();
Introduced in version 9.5.0.49

Contains the current or last negotiated TLS cipher suite. If no TLS connection has yet to be established, or if a connection as attempted and failed, then this will be empty. A sample cipher suite string looks like this: TLS_DHE_RSA_WITH_AES_256_CBC_SHA256.

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TlsPinSet
void get_TlsPinSet(CkString str);
String tlsPinSet();
void put_TlsPinSet(String newVal);
Introduced in version 9.5.0.55

Specifies a set of pins for Public Key Pinning for TLS connections. This property lists the expected SPKI fingerprints for the server certificates. If the server's certificate (sent during the TLS handshake) does not match any of the SPKI fingerprints, then the TLS handshake is aborted and the connection fails. The format of this string property is as follows:

hash_algorithm, encoding, SPKI_fingerprint_1, SPKI_fingerprint_2, ...
For example, the following string specifies a single sha256 base64-encoded SPKI fingerprint:
"sha256, base64, lKg1SIqyhPSK19tlPbjl8s02yChsVTDklQpkMCHvsTE="
This example specifies two SPKI fingerprints:
"sha256, base64, 4t37LpnGmrMEAG8HEz9yIrnvJV2euVRwCLb9EH5WZyI=, 68b0G5iqMvWVWvUCjMuhLEyekM5729PadtnU5tdXZKs="
Any of the following hash algorithms are allowed:.sha1, sha256, sha384, sha512, md2, md5, haval, ripemd128, ripemd160,ripemd256, or ripemd320.

The following encodings are allowed: base64, hex, and any of the encodings indicated in the link below.

More Information and Examples
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TlsVersion
void get_TlsVersion(CkString str);
String tlsVersion();
Introduced in version 9.5.0.49

Contains the current or last negotiated TLS protocol version. If no TLS connection has yet to be established, or if a connection as attempted and failed, then this will be empty. Possible values are "SSL 3.0", "TLS 1.0", "TLS 1.1", "TLS 1.2", and "TLS 1.3".

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UncommonOptions
void get_UncommonOptions(CkString str);
String uncommonOptions();
void put_UncommonOptions(String newVal);
Introduced in version 9.5.0.78

This is a catch-all property to be used for uncommon needs. This property defaults to the empty string and should typically remain empty.

Can be set to a list of the following comma separated keywords:

  • "OpenNonExclusive" - Introduced in v9.5.0.78. When downloading files on Windows systems, open the local file with non-exclusive access to allow other programs the ability to access the file as it's being downloaded.
  • "ProtectFromVpn" - Introduced in v9.5.0.80. On Android systems, will bypass any VPN that may be installed or active.
  • "EnableTls13" - Introduced in v9.5.0.82. Causes TLS 1.3 to be offered in the ClientHello of the TLS protocol, allowing the server to select TLS 1.3 for the session. Future versions of Chilkat will enable TLS 1.3 by default. This option is only necessary in v9.5.0.82 if TLS 1.3 is desired.
  • "DisableTls13" - Disables the use of TLS 1.3. TLS 1.3 is enabled by default in Chilkat v9.5.0.84 and above. This keyword can be used to avoid TLS 1.3 if it causes problems.
  • "NoPreserveFileTime" - Introduced in v9.5.0.85. Downloaded files will get the current local system date/time and no attempt will be made to try to preserver the last-modified date/time of the file on the server.

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UploadTransferRate
int get_UploadTransferRate();

The average upload rate in bytes/second. This property is updated in real-time during any FTP upload (asynchronous or synchronous).

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UseEpsv
boolean get_UseEpsv();
void put_UseEpsv(boolean newVal);

If true, the FTP2 component will use the EPSV command instead of PASV for passive mode data transfers. The default value of this property is false. (It is somewhat uncommon for FTP servers to support EPSV.)

Note: If the AutoFeat property is true, then the FTP server's features are automatically queried after connecting. In this case, if the AutoSetUseEpsv property is also set to true, the UseEpsv property is automatically set to true if the FTP server supports EPSV.

Important: EPSV can cause problems with some deep-inspection firewalls. If a passive data connection cannot be established, make sure to test with both the AutoSetUseEpsv and UseEpsv properties set equal to false.

More Information and Examples
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Username
void get_Username(CkString str);
String username();
void put_Username(String newVal);

Username for logging into the FTP server. Defaults to "anonymous". This property can be set to the empty string to skip authentication within the Connect method.

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VerboseLogging
boolean get_VerboseLogging();
void put_VerboseLogging(boolean newVal);

If set to true, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is false. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

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Version
void get_Version(CkString str);
String version();

Version of the component/library, such as "9.5.0.94"

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Methods

AppendFile
boolean AppendFile(String localFilePath, String remoteFilePath);

Same as PutFile but the file on the FTP server is appended.

If the remoteFilePath contains non-English characters, it may be necessary to set the DirListingCharset property equal to "utf-8". Please refer to the documentation for the DirListingCharset property.

Returns true for success, false for failure.

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AppendFileAsync (Android™) (Java)
CkTask AppendFileAsync(String localFilePath, String remoteFilePath);

Creates an asynchronous task to call the AppendFile method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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AppendFileFromBinaryData
boolean AppendFileFromBinaryData(String remoteFilename, CkByteData content);

Same as PutFileFromBinaryData, except the file on the FTP server is appended.

Returns true for success, false for failure.

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AppendFileFromBinaryDataAsync (Android™) (Java)
CkTask AppendFileFromBinaryDataAsync(String remoteFilename, CkByteData content);

Creates an asynchronous task to call the AppendFileFromBinaryData method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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AppendFileFromTextData
boolean AppendFileFromTextData(String remoteFilename, String textData, String charset);

Same as PutFileFromTextData, except the file on the FTP server is appended.

Returns true for success, false for failure.

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AppendFileFromTextDataAsync (Android™) (Java)
CkTask AppendFileFromTextDataAsync(String remoteFilename, String textData, String charset);

Creates an asynchronous task to call the AppendFileFromTextData method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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ChangeRemoteDir
boolean ChangeRemoteDir(String remoteDirPath);

Changes the current remote directory. The remoteDirPath should be relative to the current remote directory, which is initially the HOME directory of the FTP user account.

If the remoteDirPath contains non-English characters, it may be necessary to set the DirListingCharset property equal to "utf-8". Please refer to the documentation for the DirListingCharset property.

Returns true for success, false for failure.

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ChangeRemoteDirAsync (Android™) (Java)
CkTask ChangeRemoteDirAsync(String remoteDirPath);

Creates an asynchronous task to call the ChangeRemoteDir method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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CheckConnection
boolean CheckConnection();
Introduced in version 9.5.0.44

Returns true if currently connected and logged into an FTP server, otherwise returns false.

Note: This may cause a NOOP command to be sent to the FTP server.

Returns true for success, false for failure.

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CheckConnectionAsync (Android™) (Java)
CkTask CheckConnectionAsync();
Introduced in version 9.5.0.44

Creates an asynchronous task to call the CheckConnection method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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ClearControlChannel
boolean ClearControlChannel();

Reverts the FTP control channel from SSL/TLS to an unencrypted channel. This may be required when using FTPS with AUTH TLS where the FTP client is behind a DSL or cable-modem router that performs NAT (network address translation). If the control channel is encrypted, the router is unable to translate the IP address sent in the PORT command for data transfers. By clearing the control channel, the data transfers will remain encrypted, but the FTP commands are passed unencrypted. Your program would typically clear the control channel after authenticating.

Returns true for success, false for failure.

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ClearControlChannelAsync (Android™) (Java)
CkTask ClearControlChannelAsync();

Creates an asynchronous task to call the ClearControlChannel method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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ClearDirCache
void ClearDirCache();

The GetDirCount method returns the count of files and sub-directories in the current remote FTP directory, according to the ListPattern property. For example, if ListPattern is set to "*.xml", then GetDirCount returns the count of XML files in the remote directory.

The 1st time it is accessed, the component will (behind the scenes) fetch the directory listing from the FTP server. This information is cached in the component until (1) the current remote directory is changed, or (2) the ListPattern is changed, or (3) the this method (ClearDirCache) is called.

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ClearSessionLog
void ClearSessionLog();

Clears the in-memory session log.

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Connect
boolean Connect();

Connects and logs in to the FTP server using the username/password provided in the component properties. Check the integer value of the ConnectFailReason if this method returns false (indicating failure).

Note: To separately establish the connection and then authenticate (in separate method calls), call ConnectOnly followed by LoginAfterConnectOnly.

Important: All TCP-based Internet communications, regardless of the protocol (such as HTTP, FTP, SSH, IMAP, POP3, SMTP, etc.), and regardless of SSL/TLS, begin with establishing a TCP connection to a remote host:port. External security-related infrastructure such as software firewalls (Windows Firewall), hardware firewalls, anti-virus, at either source or destination (or both) can block the connection. If the connection fails, make sure to check all potential external causes of blockage.

Returns true for success, false for failure.

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ConnectAsync (Android™) (Java)
CkTask ConnectAsync();

Creates an asynchronous task to call the Connect method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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ConnectOnly
boolean ConnectOnly();

Connects to the FTP server, but does not authenticate. The combination of calling this method followed by LoginAfterConnectOnly is the equivalent of calling the Connect method (which both connects and authenticates).

Important: All TCP-based Internet communications, regardless of the protocol (such as HTTP, FTP, SSH, IMAP, POP3, SMTP, etc.), and regardless of SSL/TLS, begin with establishing a TCP connection to a remote host:port. External security-related infrastructure such as software firewalls (Windows Firewall), hardware firewalls, anti-virus, at either source or destination (or both) can block the connection. If the connection fails, make sure to check all potential external causes of blockage.

Returns true for success, false for failure.

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ConnectOnlyAsync (Android™) (Java)
CkTask ConnectOnlyAsync();

Creates an asynchronous task to call the ConnectOnly method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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ConvertToTls
boolean ConvertToTls();

Explicitly converts the control channel to a secure SSL/TLS connection.

Note: If you initially connect with either the AuthTls or AuthSsl property set to true, then DO NOT call ConvertToTls. The control channel is automatically converted to SSL/TLS from within the Connect method when these properties are set.

Note: It is very uncommon for this method to be needed.

Returns true for success, false for failure.

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ConvertToTlsAsync (Android™) (Java)
CkTask ConvertToTlsAsync();

Creates an asynchronous task to call the ConvertToTls method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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CreatePlan
boolean CreatePlan(String localDir, CkString outStr);
String createPlan(String localDir);

Creates an "FTP plan" that lists the FTP operations that would be performed when PutTree is called. Additionally, the PutPlan method executes an "FTP plan" and logs each successful operation to a plan log file. If a large-scale upload is interrupted, the PutPlan can be resumed, skipping over the operations already listed in the plan log file.

Returns true for success, false for failure.

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CreatePlanAsync (Android™) (Java)
CkTask CreatePlanAsync(String localDir);

Creates an asynchronous task to call the CreatePlan method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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CreateRemoteDir
boolean CreateRemoteDir(String remoteDirPath);

Creates a directory on the FTP server. If the directory already exists, a new one is not created and false is returned.

If the remoteDirPath contains non-English characters, it may be necessary to set the DirListingCharset property equal to "utf-8". Please refer to the documentation for the DirListingCharset property.

Returns true for success, false for failure.

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CreateRemoteDirAsync (Android™) (Java)
CkTask CreateRemoteDirAsync(String remoteDirPath);

Creates an asynchronous task to call the CreateRemoteDir method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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DeleteMatching
int DeleteMatching(String remotePattern);

Deletes all the files in the current remote FTP directory matching the pattern. Returns the number of files deleted, or -1 for failure. The pattern is a string such as "*.txt", where any number of "*" wildcard characters can be used. "*" matches 0 or more of any character.

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DeleteMatchingAsync (Android™) (Java)
CkTask DeleteMatchingAsync(String remotePattern);

Creates an asynchronous task to call the DeleteMatching method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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DeleteRemoteFile
boolean DeleteRemoteFile(String remoteFilePath);

Deletes a file on the FTP server.

If the remoteFilePath contains non-English characters, it may be necessary to set the DirListingCharset property equal to "utf-8". Please refer to the documentation for the DirListingCharset property.

Returns true for success, false for failure.

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DeleteRemoteFileAsync (Android™) (Java)
CkTask DeleteRemoteFileAsync(String remoteFilePath);

Creates an asynchronous task to call the DeleteRemoteFile method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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DeleteTree
boolean DeleteTree();

Deletes the entire subtree and all files from the current remote FTP directory. To delete a subtree on the FTP server, your program would first navigate to the root of the subtree to be deleted by calling ChangeRemoteDir, and then call DeleteTree. There are two event callbacks: VerifyDeleteFile and VerifyDeleteDir. Both are called prior to deleting each file or directory. The arguments to the callback include the full filepath of the file or directory, and an output-only "skip" flag. If your application sets the skip flag to true, the file or directory is NOT deleted. If a directory is not deleted, all files and sub-directories will remain. Example programs can be found at http://www.example-code.com/

Returns true for success, false for failure.

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DeleteTreeAsync (Android™) (Java)
CkTask DeleteTreeAsync();

Creates an asynchronous task to call the DeleteTree method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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DetermineProxyMethod
int DetermineProxyMethod();

Automatically determines the ProxyMethod that should be used with an FTP proxy server. Tries each of the five possible ProxyMethod settings and returns the value (1-5) of the ProxyMethod that succeeded.

This method may take a minute or two to complete. Returns 0 if no proxy methods were successful. Returns -1 to indicate an error (i.e. it was unable to test all proxy methods.)

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DetermineProxyMethodAsync (Android™) (Java)
CkTask DetermineProxyMethodAsync();

Creates an asynchronous task to call the DetermineProxyMethod method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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DetermineSettings
boolean DetermineSettings(CkString outStr);
String determineSettings();

Discovers which combinations of FTP2 property settings result in successful data transfers.

DetermineSettings tries 13 different combinations of these properties:

Ssl
AuthTls
AuthSsl
Port
Passive
PassiveUseHostAddr
Within the FTP protocol, the process of fetching a directory listing is also considered a "data transfer". The DetermineSettings method works by checking to see which combinations result in a successful directory listing download. The method takes no arguments and returns a string containing an XML report of the results. It is a blocking call that may take approximately a minute to run. If you are unsure about how to interpret the results, cut-and-paste it into an email and send it to support@chilkatsoft.com.

Returns true for success, false for failure.

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DetermineSettingsAsync (Android™) (Java)
CkTask DetermineSettingsAsync();

Creates an asynchronous task to call the DetermineSettings method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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DirTreeXml
boolean DirTreeXml(CkString outStr);
String dirTreeXml();

Recursively downloads the structure of a complete remote directory tree. Returns an XML document with the directory structure.

Note: Starting in version 9.5.0.47, the SyncMustMatch and SyncMustNotMatch properties apply to this method.

Returns true for success, false for failure.

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DirTreeXmlAsync (Android™) (Java)
CkTask DirTreeXmlAsync();

Creates an asynchronous task to call the DirTreeXml method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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Disconnect
boolean Disconnect();

Disconnects from the FTP server, ending the current session.

Returns true for success, false for failure.

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DisconnectAsync (Android™) (Java)
CkTask DisconnectAsync();

Creates an asynchronous task to call the Disconnect method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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DownloadTree
boolean DownloadTree(String localRoot);

Downloads an entire tree from the FTP server and recreates the directory tree on the local filesystem.

This method downloads all the files and subdirectories in the current remote directory. An application would first navigate to the directory to be downloaded via ChangeRemoteDir and then call this method.

Note: Starting in version 9.5.0.47, the SyncMustMatch and SyncMustNotMatch properties apply to this method.

Returns true for success, false for failure.

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DownloadTreeAsync (Android™) (Java)
CkTask DownloadTreeAsync(String localRoot);

Creates an asynchronous task to call the DownloadTree method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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Feat
boolean Feat(CkString outStr);
String feat();

Sends a FEAT command to the FTP server and returns the response. Returns a zero-length string to indicate failure. Here is a typical response:

211-Features:
 MDTM
 REST STREAM
 SIZE
 MLST type*;size*;modify*;
 MLSD
 AUTH SSL
 AUTH TLS
 UTF8
 CLNT
 MFMT
211 End

Returns true for success, false for failure.

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FeatAsync (Android™) (Java)
CkTask FeatAsync();

Creates an asynchronous task to call the Feat method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetCreateDt
CkDateTime GetCreateDt(int index);

Returns the create date/time for the Nth file or sub-directory in the current remote directory. The first file/dir is at index 0, and the last one is at index (GetDirCount()-1)

Returns nil on failure

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GetCreateDtAsync (Android™) (Java) (Android™) (Java)
CkTask GetCreateDtAsync(int index);

Creates an asynchronous task to call the GetCreateDt method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetCreateDtByName
CkDateTime GetCreateDtByName(String filename);

Returns the file-creation date/time for a remote file by filename.

Note: The filename passed to this method must NOT include a path. Prior to calling this method, make sure to set the current remote directory (via the ChangeRemoteDir method) to the remote directory where this file exists.

Note: Prior to calling this method, it should be ensured that the ListPattern property is set to a pattern that would match the requested filename. (The default value of ListPattern is "*", which will match all filenames.)

Note: Linux/Unix type filesystems do not store "create" date/times. Therefore, if the FTP server is on such as system, this method will return a date/time equal to the last-modified date/time.

Returns nil on failure

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GetCreateDtByNameAsync (Android™) (Java) (Android™) (Java)
CkTask GetCreateDtByNameAsync(String filename);

Creates an asynchronous task to call the GetCreateDtByName method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetCreateTimeByNameStr
boolean GetCreateTimeByNameStr(String filename, CkString outStr);
String getCreateTimeByNameStr(String filename);

Returns the file-creation date/time (in RFC822 string format, such as "Tue, 25 Sep 2012 12:25:32 -0500") for a remote file by filename.

Note: The filename passed to this method must NOT include a path. Prior to calling this method, make sure to set the current remote directory (via the ChangeRemoteDir method) to the remote directory where this file exists.

Note: Prior to calling this method, it should be ensured that the ListPattern property is set to a pattern that would match the requested filename. (The default value of ListPattern is "*", which will match all filenames.)

Note: Linux/Unix type filesystems do not store "create" date/times. If the FTP server is on such as system, this method will return a date/time equal to the last-modified date/time.

Returns true for success, false for failure.

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GetCreateTimeByNameStrAsync (Android™) (Java)
CkTask GetCreateTimeByNameStrAsync(String filename);

Creates an asynchronous task to call the GetCreateTimeByNameStr method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetCreateTimeStr
boolean GetCreateTimeStr(int index, CkString outStr);
String getCreateTimeStr(int index);

Returns the create time (in RFC822 string format, such as "Tue, 25 Sep 2012 12:25:32 -0500") for the Nth file or sub-directory in the current remote directory. The first file/dir is at index 0, and the last one is at index (GetDirCount()-1)

Returns true for success, false for failure.

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GetCreateTimeStrAsync (Android™) (Java)
CkTask GetCreateTimeStrAsync(int index);

Creates an asynchronous task to call the GetCreateTimeStr method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetCurrentRemoteDir
boolean GetCurrentRemoteDir(CkString outStr);
String getCurrentRemoteDir();

Returns the current remote directory.

Returns true for success, false for failure.

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GetCurrentRemoteDirAsync (Android™) (Java)
CkTask GetCurrentRemoteDirAsync();

Creates an asynchronous task to call the GetCurrentRemoteDir method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetDirCount
int GetDirCount();
Introduced in version 9.5.0.44

Returns the number of files and sub-directories in the current remote directory that match the ListPattern property.

Important: Calling this method may cause the directory listing to be retrieved from the FTP server. For FTP servers that do not support the MLST/MLSD commands, this is technically a data transfer that requires a temporary data connection to be established in the same way as when uploading or downloading files. If your program hangs while calling this method, it probably means that the data connection could not be established. The most common solution is to switch to using Passive mode by setting the Passive property = true, with the PassiveUseHostAddr property also set equal to true. If this does not help, examine the contents of the LastErrorText property after this method finally returns (after timing out). Also, see this Chilkat blog post about FTP connection settings.

Returns true for success, false for failure.

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GetDirCountAsync (Android™) (Java)
CkTask GetDirCountAsync();
Introduced in version 9.5.0.44

Creates an asynchronous task to call the GetDirCount method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetFile
boolean GetFile(String remoteFilePath, String localFilePath);

Downloads a file from the FTP server to the local filesystem.

If the remoteFilePath contains non-English characters, it may be necessary to set the DirListingCharset property equal to "utf-8". Please refer to the documentation for the DirListingCharset property.

Returns true for success, false for failure.

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GetFileAsync (Android™) (Java)
CkTask GetFileAsync(String remoteFilePath, String localFilePath);

Creates an asynchronous task to call the GetFile method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetFileBd
boolean GetFileBd(String remoteFilePath, CkBinData binData);
Introduced in version 9.5.0.62

Downloads a file from the FTP server into a BinData object.

If the remoteFilePath contains non-English characters, it may be necessary to set the DirListingCharset property equal to "utf-8". Please refer to the documentation for the DirListingCharset property.

Returns true for success, false for failure.

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GetFileBdAsync (Android™) (Java)
CkTask GetFileBdAsync(String remoteFilePath, CkBinData binData);
Introduced in version 9.5.0.62

Creates an asynchronous task to call the GetFileBd method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetFilename
boolean GetFilename(int index, CkString outStr);
String getFilename(int index);

Returns the filename for the Nth file or sub-directory in the current remote directory. The first file/dir is at index 0, and the last one is at index (GetDirCount()-1)

Returns true for success, false for failure.

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GetFilenameAsync (Android™) (Java)
CkTask GetFilenameAsync(int index);

Creates an asynchronous task to call the GetFilename method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetFileSb
boolean GetFileSb(String remoteFilePath, String charset, CkStringBuilder sb);
Introduced in version 9.5.0.62

Downloads a file from the FTP server into a StringBuilder object.

If the remoteFilePath contains non-English characters, it may be necessary to set the DirListingCharset property equal to "utf-8". Please refer to the documentation for the DirListingCharset property.

Returns true for success, false for failure.

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GetFileSbAsync (Android™) (Java)
CkTask GetFileSbAsync(String remoteFilePath, String charset, CkStringBuilder sb);
Introduced in version 9.5.0.62

Creates an asynchronous task to call the GetFileSb method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetFileToStream
boolean GetFileToStream(String remoteFilePath, CkStream toStream);
Introduced in version 9.5.0.67

Downloads a file to a stream. If called synchronously, the toStream must have a sink, such as a file or another stream object. If called asynchronously, then the foreground thread can read the stream.

Returns true for success, false for failure.

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GetFileToStreamAsync (Android™) (Java)
CkTask GetFileToStreamAsync(String remoteFilePath, CkStream toStream);
Introduced in version 9.5.0.67

Creates an asynchronous task to call the GetFileToStream method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetGroup
boolean GetGroup(int index, CkString outStr);
String getGroup(int index);
Introduced in version 9.5.0.50

Returns group name, if available, for the Nth file. If empty, then no group information is available.

Note: When MLSD is used to get directory listings, it is likely that the owner and group information is not transmitted. In cases where the FTP server is on a UNIX/Linux system, the AllowMlsd property can be set to false to force UNIX directory listings instead of MLSD directory listings. This should result in being able to obtain owner/group information. However, it may sacrifice the quality and accuracy of the various date/time values that are returned.

Returns true for success, false for failure.

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GetGroupAsync (Android™) (Java)
CkTask GetGroupAsync(int index);
Introduced in version 9.5.0.50

Creates an asynchronous task to call the GetGroup method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetIsDirectory
boolean GetIsDirectory(int index);

Returns true for a sub-directory and false for a file, for the Nth entry in the current remote directory. The first file/dir is at index 0, and the last one is at index (GetDirCount()-1)

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GetIsDirectoryAsync (Android™) (Java)
CkTask GetIsDirectoryAsync(int index);

Creates an asynchronous task to call the GetIsDirectory method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetIsSymbolicLink
boolean GetIsSymbolicLink(int index);

Returns true if the remote file is a symbolic link. (Symbolic links only exist on Unix/Linux systems, not on Windows filesystems.)

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GetIsSymbolicLinkAsync (Android™) (Java)
CkTask GetIsSymbolicLinkAsync(int index);

Creates an asynchronous task to call the GetIsSymbolicLink method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetLastModDt
CkDateTime GetLastModDt(int index);

Returns the last modified date/time for the Nth file or sub-directory in the current remote directory. The first file/dir is at index 0, and the last one is at index (GetDirCount()-1)

Returns nil on failure

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GetLastModDtAsync (Android™) (Java) (Android™) (Java)
CkTask GetLastModDtAsync(int index);

Creates an asynchronous task to call the GetLastModDt method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetLastModDtByName
CkDateTime GetLastModDtByName(String filename);

Returns the last-modified date/time for a remote file.

Note: The filename passed to this method must NOT include a path. Prior to calling this method, make sure to set the current remote directory (via the ChangeRemoteDir method) to the remote directory where this file exists.

Note: Prior to calling this method, it should be ensured that the ListPattern property is set to a pattern that would match the requested filename. (The default value of ListPattern is "*", which will match all filenames.)

Returns nil on failure

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GetLastModDtByNameAsync (Android™) (Java) (Android™) (Java)
CkTask GetLastModDtByNameAsync(String filename);

Creates an asynchronous task to call the GetLastModDtByName method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetLastModifiedTimeByNameStr
boolean GetLastModifiedTimeByNameStr(String filename, CkString outStr);
String getLastModifiedTimeByNameStr(String filename);

Returns a remote file's last-modified date/time in RFC822 string format, such as "Tue, 25 Sep 2012 12:25:32 -0500".

Note: The filename passed to this method must NOT include a path. Prior to calling this method, make sure to set the current remote directory (via the ChangeRemoteDir method) to the remote directory where this file exists.

Note: Prior to calling this method, it should be ensured that the ListPattern property is set to a pattern that would match the requested filename. (The default value of ListPattern is "*", which will match all filenames.)

Returns true for success, false for failure.

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GetLastModifiedTimeByNameStrAsync (Android™) (Java)
CkTask GetLastModifiedTimeByNameStrAsync(String filename);

Creates an asynchronous task to call the GetLastModifiedTimeByNameStr method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetLastModifiedTimeStr
boolean GetLastModifiedTimeStr(int index, CkString outStr);
String getLastModifiedTimeStr(int index);

Returns the last modified date/time (in RFC822 string format, such as "Tue, 25 Sep 2012 12:25:32 -0500") for the Nth file or sub-directory in the current remote directory. The first file/dir is at index 0, and the last one is at index (GetDirCount()-1)

Returns true for success, false for failure.

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GetLastModifiedTimeStrAsync (Android™) (Java)
CkTask GetLastModifiedTimeStrAsync(int index);

Creates an asynchronous task to call the GetLastModifiedTimeStr method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetOwner
boolean GetOwner(int index, CkString outStr);
String getOwner(int index);
Introduced in version 9.5.0.50

Returns owner name, if available, for the Nth file. If empty, then no owner information is available.

Note: When MLSD is used to get directory listings, it is likely that the owner and group information is not transmitted. In cases where the FTP server is on a UNIX/Linux system, the AllowMlsd property can be set to false to force UNIX directory listings instead of MLSD directory listings. This should result in being able to obtain owner/group information. However, it may sacrifice the quality and accuracy of the various date/time values that are returned.

Returns true for success, false for failure.

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GetOwnerAsync (Android™) (Java)
CkTask GetOwnerAsync(int index);
Introduced in version 9.5.0.50

Creates an asynchronous task to call the GetOwner method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetPermissions
boolean GetPermissions(int index, CkString outStr);
String getPermissions(int index);
Introduced in version 9.5.0.50

Returns permissions information, if available, for the Nth file. If empty, then no permissions information is available. The value returned by the GetPermType method defines the content and format of the permissions string returned by this method. Possible permission types are "mlsd", "unix", "netware", "openvms", and "batchStatusFlags". The format of each permission type is as follows:


PermType: mlsd:

A "perm fact" is returned. The format of the perm fact is defined in RFC 3659 as follows:

  The perm fact is used to indicate access rights the current FTP user
   has over the object listed.  Its value is always an unordered
   sequence of alphabetic characters.

      perm-fact    = "Perm" "=" *pvals
      pvals        = "a" / "c" / "d" / "e" / "f" /
                     "l" / "m" / "p" / "r" / "w"

   There are ten permission indicators currently defined.  Many are
   meaningful only when used with a particular type of object.  The
   indicators are case independent, "d" and "D" are the same indicator.

   The "a" permission applies to objects of type=file, and indicates
   that the APPE (append) command may be applied to the file named.

   The "c" permission applies to objects of type=dir (and type=pdir,
   type=cdir).  It indicates that files may be created in the directory
   named.  That is, that a STOU command is likely to succeed, and that
   STOR and APPE commands might succeed if the file named did not
   previously exist, but is to be created in the directory object that
   has the "c" permission.  It also indicates that the RNTO command is
   likely to succeed for names in the directory.

   The "d" permission applies to all types.  It indicates that the
   object named may be deleted, that is, that the RMD command may be
   applied to it if it is a directory, and otherwise that the DELE
   command may be applied to it.

   The "e" permission applies to the directory types.  When set on an
   object of type=dir, type=cdir, or type=pdir it indicates that a CWD
   command naming the object should succeed, and the user should be able
   to enter the directory named.  For type=pdir it also indicates that
   the CDUP command may succeed (if this particular pathname is the one
   to which a CDUP would apply.)

   The "f" permission for objects indicates that the object named may be
   renamed - that is, may be the object of an RNFR command.

   The "l" permission applies to the directory file types, and indicates
   that the listing commands, LIST, NLST, and MLSD may be applied to the
   directory in question.

   The "m" permission applies to directory types, and indicates that the
   MKD command may be used to create a new directory within the
   directory under consideration.

   The "p" permission applies to directory types, and indicates that
   objects in the directory may be deleted, or (stretching naming a
   little) that the directory may be purged.  Note: it does not indicate
   that the RMD command may be used to remove the directory named
   itself, the "d" permission indicator indicates that.

   The "r" permission applies to type=file objects, and for some
   systems, perhaps to other types of objects, and indicates that the
   RETR command may be applied to that object.

   The "w" permission applies to type=file objects, and for some
   systems, perhaps to other types of objects, and indicates that the
   STOR command may be applied to the object named.

   Note: That a permission indicator is set can never imply that the
      appropriate command is guaranteed to work -- just that it might.
      Other system specific limitations, such as limitations on
      available space for storing files, may cause an operation to fail,
      where the permission flags may have indicated that it was likely
      to succeed.  The permissions are a guide only.

   Implementation note: The permissions are described here as they apply
      to FTP commands.  They may not map easily into particular
      permissions available on the server's operating system.  Servers
      are expected to synthesize these permission bits from the
      permission information available from operating system.  For
      example, to correctly determine whether the "D" permission bit
      should be set on a directory for a server running on the UNIX(TM)
      operating system, the server should check that the directory named
      is empty, and that the user has write permission on both the
      directory under consideration, and its parent directory.

      Some systems may have more specific permissions than those listed
      here, such systems should map those to the flags defined as best
      they are able.  Other systems may have only more broad access
      controls.  They will generally have just a few possible
      permutations of permission flags, however they should attempt to
      correctly represent what is permitted.

PermType: unix:

A Unix/Linux permissions string is returned ( such as "drwxr-xr-x" or "-rw-r--r--")

    The UNIX permissions string is 10 characters. Each character has a specific meaning. If the first character is:
    d 	the entry is a directory.
    b 	the entry is a block special file.
    c 	the entry is a character special file.
    l 	the entry is a symbolic link. Either the -N flag was specified, or the symbolic link did not point to an existing file.
    p 	the entry is a first-in, first-out (FIFO) special file.
    s 	the entry is a local socket.
    - 	the entry is an ordinary file.

    The next nine characters are divided into three sets of three characters each. The first set of three characters show 
the owner's permission. The next set of three characters show the permission of the other users in the group. The last
set of three characters shows the permission of anyone else with access to the file. The three characters in each set 
indicate, respectively, read, write, and execute permission of the file. With execute permission of a directory, you can search 
a directory for a specified file. Permissions are indicated like this:

    r 	read
    w 	write (edit)
    x 	execute (search)
    - 	corresponding permission not granted 

PermType: netware:

Contains the NetWare rights string from a NetWare FTP server directory listing format. For example "-WCE---S" or "RWCEAFMS".

Directory Rights	Description
----------------	-------------------------------
Read (R)		Read data from an existing file.
Write (W)		Write data to an existing file.
Create (C)		Create a new file or subdirectory.
Erase (E)		Delete an existing files or directory.
Modify (M)	Rename and change attributes of a file.
File Scan (F)	List the contents of a directory.
Access Control (A)	Control the rights of other users to access files or directories.
Supervisor (S)	Automatically allowed all rights.

PermType: openvms:

Contains the OpenVMS permissions string. For example "(RWED,RWED,RWED,RWED)", "(RWED,RWED,,)", "(RWED,RWED,R,R)", etc.


PermType: batchStatusFlags:

Contains the batch status flags from a Connect:Enterprise Server. Such as "-CR--M----" or "-ART------".

The Batch Status Flags  is a 10-character string where each character describes an attribute of the batch. 
A dash indicates that flag is turned off and therefore has no meaning to the 
batch in question. The flags are always displayed in the same order: 

1) I  -- Incomplete batch which will NOT be processed. 
2) A or C -- Added or Collected
3) R -- Requestable by partner 
4) T -- Transmitted to partner 
5) E -- Extracted (inbound file processed by McLane) 
6) M -- Multi-transmittable 
7) U -- Un-extractable 
8) N -- Non-transmittable 
9) P -- In Progress 
10) - -- Always a dash.

Returns true for success, false for failure.

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GetPermissionsAsync (Android™) (Java)
CkTask GetPermissionsAsync(int index);
Introduced in version 9.5.0.50

Creates an asynchronous task to call the GetPermissions method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetPermType
boolean GetPermType(int index, CkString outStr);
String getPermType(int index);
Introduced in version 9.5.0.50

Returns the type of permissions information that is available for the Nth file. If empty, then no permissions information is available. The value returned by this method defines the content and format of the permissions string returned by the GetPermissions method. Possible values are "mlsd", "unix", "netware", "openvms", and "batchStatusFlags".

Returns true for success, false for failure.

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GetPermTypeAsync (Android™) (Java)
CkTask GetPermTypeAsync(int index);
Introduced in version 9.5.0.50

Creates an asynchronous task to call the GetPermType method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetRemoteFileBinaryData
boolean GetRemoteFileBinaryData(String remoteFilename, CkByteData outData);

Downloads the contents of a remote file into a byte array.

Returns true for success, false for failure.

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GetRemoteFileBinaryDataAsync (Android™) (Java)
CkTask GetRemoteFileBinaryDataAsync(String remoteFilename);

Creates an asynchronous task to call the GetRemoteFileBinaryData method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetRemoteFileTextC
boolean GetRemoteFileTextC(String remoteFilename, String charset, CkString outStr);
String getRemoteFileTextC(String remoteFilename, String charset);

Downloads a text file directly into a string variable. The character encoding of the text file is specified by the charset argument, which is a value such as utf-8, iso-8859-1, Shift_JIS, etc.

Returns true for success, false for failure.

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GetRemoteFileTextCAsync (Android™) (Java)
CkTask GetRemoteFileTextCAsync(String remoteFilename, String charset);

Creates an asynchronous task to call the GetRemoteFileTextC method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetRemoteFileTextData
boolean GetRemoteFileTextData(String remoteFilename, CkString outStr);
String getRemoteFileTextData(String remoteFilename);

Downloads the content of a remote text file directly into an in-memory string.

Note: If the remote text file does not use the ANSI character encoding, call GetRemoteFileTextC instead, which allows for the character encoding to be specified so that characters are properly interpreted.

Returns true for success, false for failure.

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GetRemoteFileTextDataAsync (Android™) (Java)
CkTask GetRemoteFileTextDataAsync(String remoteFilename);

Creates an asynchronous task to call the GetRemoteFileTextData method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetSize
int GetSize(int index);

Returns the size of the Nth remote file in the current directory.

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GetSizeAsync (Android™) (Java)
CkTask GetSizeAsync(int index);

Creates an asynchronous task to call the GetSize method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetSize64
long long GetSize64(int index);

Returns the size of the Nth remote file in the current directory as a 64-bit integer. Returns -1 if the file does not exist.

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GetSize64Async (Android™) (Java)
CkTask GetSize64Async(int index);

Creates an asynchronous task to call the GetSize64 method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetSizeByName
int GetSizeByName(String filename);

Returns a remote file's size in bytes. Returns -1 if the file does not exist.

Note: The filename passed to this method must NOT include a path. Prior to calling this method, make sure to set the current remote directory (via the ChangeRemoteDir method) to the remote directory where this file exists.

Note: Prior to calling this method, it should be ensured that the ListPattern property is set to a pattern that would match the requested filename. (The default value of ListPattern is "*", which will match all filenames.)

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GetSizeByNameAsync (Android™) (Java)
CkTask GetSizeByNameAsync(String filename);

Creates an asynchronous task to call the GetSizeByName method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetSizeByName64
long long GetSizeByName64(String filename);

Returns a remote file's size in bytes as a 64-bit integer.

Note: The filename passed to this method must NOT include a path. Prior to calling this method, make sure to set the current remote directory (via the ChangeRemoteDir method) to the remote directory where this file exists.

Note: Prior to calling this method, it should be ensured that the ListPattern property is set to a pattern that would match the requested filename. (The default value of ListPattern is "*", which will match all filenames.)

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GetSizeByName64Async (Android™) (Java)
CkTask GetSizeByName64Async(String filename);

Creates an asynchronous task to call the GetSizeByName64 method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetSizeStr
boolean GetSizeStr(int index, CkString outStr);
String getSizeStr(int index);

Returns the size in decimal string format of the Nth remote file in the current directory. This is helpful for cases when the file size (in bytes) is greater than what can fit in a 32-bit integer.

Returns true for success, false for failure.

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GetSizeStrAsync (Android™) (Java)
CkTask GetSizeStrAsync(int index);

Creates an asynchronous task to call the GetSizeStr method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetSizeStrByName
boolean GetSizeStrByName(String filename, CkString outStr);
String getSizeStrByName(String filename);

Returns the size of a remote file as a string. This is helpful when file a file size is greater than what can fit in a 32-bit integer.

Note: The filename passed to this method must NOT include a path. Prior to calling this method, make sure to set the current remote directory (via the ChangeRemoteDir method) to the remote directory where this file exists.

Note: Prior to calling this method, it should be ensured that the ListPattern property is set to a pattern that would match the requested filename. (The default value of ListPattern is "*", which will match all filenames.)

Returns true for success, false for failure.

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GetSizeStrByNameAsync (Android™) (Java)
CkTask GetSizeStrByNameAsync(String filename);

Creates an asynchronous task to call the GetSizeStrByName method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetSslServerCert
CkCert GetSslServerCert();

Returns the FTP server's digital certificate (for SSL / TLS connections).

Returns nil on failure

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GetTextDirListing
boolean GetTextDirListing(String pattern, CkString outStr);
String getTextDirListing(String pattern);

Returns a listing of the files and directories in the current directory matching the pattern. Passing "*.*" will return all the files and directories.

Returns true for success, false for failure.

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GetTextDirListingAsync (Android™) (Java)
CkTask GetTextDirListingAsync(String pattern);

Creates an asynchronous task to call the GetTextDirListing method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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GetXmlDirListing
boolean GetXmlDirListing(String pattern, CkString outStr);
String getXmlDirListing(String pattern);

Returns (in XML format) the files and directories in the current directory matching the pattern. Passing "*.*" will return all the files and directories.

Note: The lastModTime XML elements contain date/time information in the local (client) timezone. However, it's possible based on the capabilities of an FTP server (or lack of capabilities) that the timezone information for the remote files is not available. In other words, in some cases, the timezone of an FTP server cannot be known, especially for older FTP server implementations.

Returns true for success, false for failure.

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GetXmlDirListingAsync (Android™) (Java)
CkTask GetXmlDirListingAsync(String pattern);

Creates an asynchronous task to call the GetXmlDirListing method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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LargeFileUpload
boolean LargeFileUpload(String localPath, String remotePath, int chunkSize);
Introduced in version 9.5.0.58

This is the same as PutFile, but designed to work around the following potential problem associated with an upload that is extremely large.

FTP uses two TCP (or TLS) connections: a control connection to submit commands and receive replies, and a data connection for actual file transfers. It is the nature of FTP that during a transfer the control connection stays completely idle. Many routers and firewalls automatically close idle connections after a certain period of time. Worse, they often don't notify the user, but just silently drop the connection.

For FTP, this means that during a long transfer the control connection can get dropped because it is detected as idle, but neither client nor server are notified. When all data has been transferred, the server assumes the control connection is alive and it sends the transfer confirmation reply.

Likewise, the client thinks the control connection is alive and it waits for the reply from the server. But since the control connection got dropped without notification, the reply never arrives and eventually the connection will timeout.

The Solution: This method uploads the file in chunks, where each chunk appends to the remote file. This way, each chunk is a separate FTP upload that does not take too long to complete. The chunkSize specifies the number of bytes to upload in each chunk. The size should be based on the amount of memory available (because each chunk will reside in memory as it's being uploaded), the transfer rate, and the total size of the file being uploaded. For example, if a 4GB file is uploaded, and the chunkSize is set to 1MB (1,048,576 bytes), then 4000 separate chunks would be required. This is likely not a good choice for chunkSize. A more appropriate chunkSize might be 20MB, in which case the upload would complete in 200 separate chunks. The application would temporarily be using a 20MB buffer for uploading chunks. The tradeoff is between the number of chunks (the more chunks, the larger the overall time to upload), the amount of memory that is reasonable for the temporary buffer, and the amount of time required to upload each chunk (if the chunk size is too large, then the problem described above is not solved).

Returns true for success, false for failure.

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LargeFileUploadAsync (Android™) (Java)
CkTask LargeFileUploadAsync(String localPath, String remotePath, int chunkSize);
Introduced in version 9.5.0.58

Creates an asynchronous task to call the LargeFileUpload method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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LoadTaskCaller
boolean LoadTaskCaller(CkTask task);
Introduced in version 9.5.0.80

Loads the caller of the task's async method.

Returns true for success, false for failure.

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LoginAfterConnectOnly
boolean LoginAfterConnectOnly();

Authenticates with the FTP server using the values provided in the Username, Password, and/or other properties. This can be called after establishing the connection via the ConnectOnly method. (The Connect method both connects and authenticates.) The combination of calling ConnectOnly followed by LoginAfterConnectOnly is the equivalent of calling the Connect method.

Note: After successful authentication, the FEAT and SYST commands are automatically sent to help the client understand what is supported by the FTP server. To prevent these commands from being sent, set the AutoFeat and/or AutoSyst properties equal to false.

Returns true for success, false for failure.

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LoginAfterConnectOnlyAsync (Android™) (Java)
CkTask LoginAfterConnectOnlyAsync();

Creates an asynchronous task to call the LoginAfterConnectOnly method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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MGetFiles
int MGetFiles(String remotePattern, String localDir);

Copies all the files in the current remote FTP directory to a local directory. To copy all the files in a remote directory, set remotePattern to "*.*" The pattern can contain any number of "*"characters, where "*" matches 0 or more of any character. The return value is the number of files transferred, and on error, a value of -1 is returned. Detailed information about the transfer can be obtained from the last-error information (LastErrorText/LastErrorHtml/LastErrorXml/SaveLastError).

About case sensitivity: The MGetFiles command works by sending the "LIST" command to the FTP server. For example: "LIST *.txt". The FTP server responds with a directory listing of the files matching the wildcarded pattern, and it is these files that are downloaded. Case sensitivity depends on the case-sensitivity of the remote file system. If the FTP server is running on a Windows-based computer, it is likely to be case insensitive. However, if the FTP server is running on Linux, MAC OS X, etc. it is likely to be case sensitive. There is no good way to force case-insensitivity if the remote filesystem is case-sensitive because it is not possible for the FTP client to send a LIST command indicating that it wants the matching to be case-insensitive.

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MGetFilesAsync (Android™) (Java)
CkTask MGetFilesAsync(String remotePattern, String localDir);

Creates an asynchronous task to call the MGetFiles method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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MPutFiles
int MPutFiles(String pattern);

Uploads all the files matching pattern on the local computer to the current remote FTP directory. The pattern parameter can include directory information, such as "C:/my_dir/*.txt" or it can simply be a pattern such as "*.*" that matches the files in the application's current directory. Subdirectories are not recursed. The return value is the number of files copied, with a value of -1 returned for errors. Detailed information about the transfer can be obtained from the XML log.

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MPutFilesAsync (Android™) (Java)
CkTask MPutFilesAsync(String pattern);

Creates an asynchronous task to call the MPutFiles method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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NlstXml
boolean NlstXml(String remoteDirPattern, CkString outStr);
String nlstXml(String remoteDirPattern);

Sends an NLST command to the FTP server and returns the results in XML format. The NLST command returns a list of filenames in the given directory (matching the pattern). The remoteDirPattern should be a pattern such as "*", "*.*", "*.txt", "subDir/*.xml", etc.

The format of the XML returned is:

<nlst>
<e>filename_or_dir_1</e>
<e>filename_or_dir_2</e>
<e>filename_or_dir_3</e>
<e>filename_or_dir_4</e>
...
</nlst>

Returns true for success, false for failure.

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NlstXmlAsync (Android™) (Java)
CkTask NlstXmlAsync(String remoteDirPattern);

Creates an asynchronous task to call the NlstXml method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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Noop
boolean Noop();

Issues a no-op command to the FTP server.

Returns true for success, false for failure.

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NoopAsync (Android™) (Java)
CkTask NoopAsync();

Creates an asynchronous task to call the Noop method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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PutFile
boolean PutFile(String localFilePath, String remoteFilePath);

Uploads a local file to the current directory on the FTP server.

If the remoteFilePath contains non-English characters, it may be necessary to set the DirListingCharset property equal to "utf-8". Please refer to the documentation for the DirListingCharset property.

Note: The IdleTimeoutMs property sets the maximum amount of time to wait while paused during an upload because outgoing system socket buffers are full. If an upload hangs with no additional data sent for this amount of time (because the server is not consuming data on its end), then the upload will fail with a timeout.

Returns true for success, false for failure.

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PutFileAsync (Android™) (Java)
CkTask PutFileAsync(String localFilePath, String remoteFilePath);

Creates an asynchronous task to call the PutFile method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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PutFileBd
boolean PutFileBd(CkBinData binData, String remoteFilePath);
Introduced in version 9.5.0.62

Uploads the contents of a BinData to a remote file.

If the remoteFilePath contains non-English characters, it may be necessary to set the DirListingCharset property equal to "utf-8". Please refer to the documentation for the DirListingCharset property.

Returns true for success, false for failure.

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PutFileBdAsync (Android™) (Java)
CkTask PutFileBdAsync(CkBinData binData, String remoteFilePath);
Introduced in version 9.5.0.62

Creates an asynchronous task to call the PutFileBd method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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PutFileFromBinaryData
boolean PutFileFromBinaryData(String remoteFilename, CkByteData content);

Creates a file on the remote server containing the data passed in a byte array.

Returns true for success, false for failure.

More Information and Examples
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PutFileFromBinaryDataAsync (Android™) (Java)
CkTask PutFileFromBinaryDataAsync(String remoteFilename, CkByteData content);

Creates an asynchronous task to call the PutFileFromBinaryData method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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PutFileFromTextData
boolean PutFileFromTextData(String remoteFilename, String textData, String charset);

Creates a file on the remote server containing the data passed in a string.

Returns true for success, false for failure.

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PutFileFromTextDataAsync (Android™) (Java)
CkTask PutFileFromTextDataAsync(String remoteFilename, String textData, String charset);

Creates an asynchronous task to call the PutFileFromTextData method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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PutFileSb
boolean PutFileSb(CkStringBuilder sb, String charset, boolean includeBom, String remoteFilePath);
Introduced in version 9.5.0.62

Uploads the contents of a StringBuilder to a remote file.

If the charset contains non-English characters, it may be necessary to set the DirListingCharset property equal to "utf-8". Please refer to the documentation for the DirListingCharset property.

Returns true for success, false for failure.

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PutFileSbAsync (Android™) (Java)
CkTask PutFileSbAsync(CkStringBuilder sb, String charset, boolean includeBom, String remoteFilePath);
Introduced in version 9.5.0.62

Creates an asynchronous task to call the PutFileSb method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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PutPlan
boolean PutPlan(String plan, String alreadyDoneFilename);

Executes an "FTP plan" (created by the CreatePlan method) and logs each successful operation to a plan log file. If a large-scale upload is interrupted, the PutPlan can be resumed, skipping over the operations already listed in the plan log file. When resuming an interrupted PutPlan method, use the same log file. All completed operations found in the already-existing log will automatically be skipped.

Returns true for success, false for failure.

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PutPlanAsync (Android™) (Java)
CkTask PutPlanAsync(String plan, String alreadyDoneFilename);

Creates an asynchronous task to call the PutPlan method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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PutTree
boolean PutTree(String localDir);

Uploads an entire directory tree from the local filesystem to the remote FTP server, recreating the directory tree on the server. The PutTree method copies a directory tree to the current remote directory on the FTP server.

Returns true for success, false for failure.

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PutTreeAsync (Android™) (Java)
CkTask PutTreeAsync(String localDir);

Creates an asynchronous task to call the PutTree method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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Quote
boolean Quote(String cmd);

Sends an arbitrary (raw) command to the FTP server.

Returns true for success, false for failure.

More Information and Examples
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QuoteAsync (Android™) (Java)
CkTask QuoteAsync(String cmd);

Creates an asynchronous task to call the Quote method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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RemoveRemoteDir
boolean RemoveRemoteDir(String remoteDirPath);

Removes a directory from the FTP server.

If the remoteDirPath contains non-English characters, it may be necessary to set the DirListingCharset property equal to "utf-8". Please refer to the documentation for the DirListingCharset property.

Returns true for success, false for failure.

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RemoveRemoteDirAsync (Android™) (Java)
CkTask RemoveRemoteDirAsync(String remoteDirPath);

Creates an asynchronous task to call the RemoveRemoteDir method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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RenameRemoteFile
boolean RenameRemoteFile(String existingRemoteFilePath, String newRemoteFilePath);

Renames a file or directory on the FTP server. To move a file from one directory to another on a remote FTP server, call this method and include the source and destination directory filepath.

If the existingRemoteFilePath or newRemoteFilePath contains non-English characters, it may be necessary to set the DirListingCharset property equal to "utf-8". Please refer to the documentation for the DirListingCharset property.

Returns true for success, false for failure.

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RenameRemoteFileAsync (Android™) (Java)
CkTask RenameRemoteFileAsync(String existingRemoteFilePath, String newRemoteFilePath);

Creates an asynchronous task to call the RenameRemoteFile method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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SendCommand
boolean SendCommand(String cmd, CkString outStr);
String sendCommand(String cmd);

Sends an raw command to the FTP server and returns the raw response.

Returns true for success, false for failure.

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SendCommandAsync (Android™) (Java)
CkTask SendCommandAsync(String cmd);

Creates an asynchronous task to call the SendCommand method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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SetModeZ
boolean SetModeZ();

Chilkat FTP2 supports MODE Z, which is a transfer mode implemented by some FTP servers. It allows for files to be uploaded and downloaded using compressed streams (using the zlib deflate algorithm).

Call this method after connecting to enable Mode Z. Once enabled, all transfers (uploads, downloads, and directory listings) are compressed.

Returns true for success, false for failure.

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SetModeZAsync (Android™) (Java)
CkTask SetModeZAsync();

Creates an asynchronous task to call the SetModeZ method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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SetOldestDateStr
void SetOldestDateStr(String oldestDateTimeStr);

Used in conjunction with the DownloadTree method. Call this method prior to calling DownloadTree to set the oldest date for a file to be downloaded. When DownloadTree is called, any file older than this date will not be downloaded.

The oldestDateTimeStr should be a date/time string in RFC822 format, such as "Tue, 25 Sep 2012 12:25:32 -0500".

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SetOption
boolean SetOption(String option);
Introduced in version 9.5.0.57

This is a general purpose method to set miscellaneous options that might arise due to buggy or quirky FTP servers. The option is a string describing the option. The current list of possible options are:

  • "Microsoft-TLS-1.2-Workaround" -- This is to force the data connection to use TLS 1.0 instead of the default. It works around the Microsoft FTP server bug found here: https://support.microsoft.com/en-us/kb/2888853

To turn off an option, prepend the string "No-". For example "No-Microsoft-TLS-1.2-Workaround". All options are turned off by default.

Returns true for success, false for failure.

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SetRemoteFileDateTimeStr
boolean SetRemoteFileDateTimeStr(String dateTimeStr, String remoteFilename);

Sets the last-modified date/time of a file on the FTP server. The dateTimeStr should be a date/time string in RFC822 format, such as "Tue, 25 Sep 2012 12:25:32 -0500".

Important: Not all FTP servers support this functionality. Please see the information at the Chilkat blog below:

Returns true for success, false for failure.

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SetRemoteFileDateTimeStrAsync (Android™) (Java)
CkTask SetRemoteFileDateTimeStrAsync(String dateTimeStr, String remoteFilename);

Creates an asynchronous task to call the SetRemoteFileDateTimeStr method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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SetRemoteFileDt
boolean SetRemoteFileDt(CkDateTime dt, String remoteFilename);

Sets the last-modified date/time of a file on the FTP server. Important: Not all FTP servers support this functionality. Please see the information at the Chilkat blog below:

Returns true for success, false for failure.

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SetRemoteFileDtAsync (Android™) (Java)
CkTask SetRemoteFileDtAsync(CkDateTime dt, String remoteFilename);

Creates an asynchronous task to call the SetRemoteFileDt method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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SetSecurePassword
boolean SetSecurePassword(CkSecureString password);
Introduced in version 9.5.0.76

Sets the password in a more secure way than setting the Password property. Calling this method is the equivalent of setting the Password property.

Returns true for success, false for failure.

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SetSslCertRequirement
void SetSslCertRequirement(String reqName, String reqValue);

Enforces a requirement on the server's certificate. The reqName can be one of the following:

  • SubjectDN
  • SubjectCN
  • IssuerDN
  • IssuerCN
  • SAN (added in v9.5.0.84)

The reqName specifies the part of the certificate, and the reqValue is the value that it must match exactly or with a wildcard (*). If the server's certificate does not match, the SSL / TLS connection is aborted.

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SetSslClientCert
boolean SetSslClientCert(CkCert cert);

Allows for a client-side certificate to be used for the SSL / TLS connection.

Returns true for success, false for failure.

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SetSslClientCertPem
boolean SetSslClientCertPem(String pemDataOrFilename, String pemPassword);

Allows for a client-side certificate to be used for the SSL / TLS connection. If the PEM requires no password, pass an empty string in pemPassword. If the PEM is in a file, pass the path to the file in pemDataOrFilename. If the PEM is already loaded into a string variable, then pass the string containing the contents of the PEM in pemDataOrFilename.

Returns true for success, false for failure.

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SetSslClientCertPfx
boolean SetSslClientCertPfx(String pfxFilename, String pfxPassword);

Allows for a client-side certificate to be used for the SSL / TLS connection.

Returns true for success, false for failure.

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SetTypeAscii
boolean SetTypeAscii();

Set the FTP transfer mode to us-ascii.

Returns true for success, false for failure.

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SetTypeAsciiAsync (Android™) (Java)
CkTask SetTypeAsciiAsync();

Creates an asynchronous task to call the SetTypeAscii method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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SetTypeBinary
boolean SetTypeBinary();

Set the FTP transfer mode to binary.

Returns true for success, false for failure.

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SetTypeBinaryAsync (Android™) (Java)
CkTask SetTypeBinaryAsync();

Creates an asynchronous task to call the SetTypeBinary method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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Site
boolean Site(String siteCommand);

Sends an arbitrary "site" command to the FTP server. The params argument should contain the parameters to the site command as they would appear on a command line. For example: "recfm=fb lrecl=600".

Returns true for success, false for failure.

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SiteAsync (Android™) (Java)
CkTask SiteAsync(String siteCommand);

Creates an asynchronous task to call the Site method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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SleepMs
void SleepMs(int millisec);

Causes the calling process to sleep for a number of milliseconds.

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Stat
boolean Stat(CkString outStr);
String ck_stat();

Sends a STAT command to the FTP server and returns the server's reply.

Returns true for success, false for failure.

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StatAsync (Android™) (Java)
CkTask StatAsync();

Creates an asynchronous task to call the Stat method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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SyncDeleteRemote
boolean SyncDeleteRemote(String localRoot);

Delete remote files that do not exist locally. The remote directory tree rooted at the current remote directory is traversed and remote files that have no corresponding local file are deleted.

Note: In v9.5.0.51 and higher, the list of deleted files is available in the SyncedFiles property.

Returns true for success, false for failure.

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SyncDeleteRemoteAsync (Android™) (Java)
CkTask SyncDeleteRemoteAsync(String localRoot);

Creates an asynchronous task to call the SyncDeleteRemote method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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SyncLocalDir
boolean SyncLocalDir(String localRoot, int mode);

The same as SyncLocalTree, except the sub-directories are not traversed. The files in the current remote directory are synchronized (downloaded) with the files in localRoot. For possible mode settings, see SyncLocalTree.

Note: In v9.5.0.51 and higher, the list of downloaded files is available in the SyncedFiles property.

Returns true for success, false for failure.

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SyncLocalDirAsync (Android™) (Java)
CkTask SyncLocalDirAsync(String localRoot, int mode);

Creates an asynchronous task to call the SyncLocalDir method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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SyncLocalTree
boolean SyncLocalTree(String localRoot, int mode);

Downloads files from the FTP server to a local directory tree. Synchronization modes include:

mode=0: Download all files
mode=1: Download all files that do not exist on the local filesystem.
mode=2: Download newer or non-existant files.
mode=3: Download only newer files. If a file does not already exist on the local filesystem, it is not downloaded from the server.
mode=5: Download only missing files or files with size differences.
mode=6: Same as mode 5, but also download newer files.
mode=99: Do not download files, but instead delete remote files that do not exist locally.
* There is no mode #4. It is a mode used internally by the DirTreeXml method.

Note: In v9.5.0.51 and higher, the list of downloaded (or deleted) files is available in the SyncedFiles property.

Returns true for success, false for failure.

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SyncLocalTreeAsync (Android™) (Java)
CkTask SyncLocalTreeAsync(String localRoot, int mode);

Creates an asynchronous task to call the SyncLocalTree method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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SyncRemoteTree
boolean SyncRemoteTree(String localRoot, int mode);

Uploads a directory tree from the local filesystem to the FTP server. Synchronization modes include:

mode=0: Upload all files
mode=1: Upload all files that do not exist on the FTP server.
mode=2: Upload newer or non-existant files.
mode=3: Upload only newer files. If a file does not already exist on the FTP server, it is not uploaded.
mode=4: transfer missing files or files with size differences.
mode=5: same as mode 4, but also newer files.

Note: In v9.5.0.51 and higher, the list of uploaded files is available in the SyncedFiles property.

Returns true for success, false for failure.

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SyncRemoteTreeAsync (Android™) (Java)
CkTask SyncRemoteTreeAsync(String localRoot, int mode);

Creates an asynchronous task to call the SyncRemoteTree method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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SyncRemoteTree2
boolean SyncRemoteTree2(String localDirPath, int mode, boolean bDescend, boolean bPreviewOnly);

Same as SyncRemoteTree, except two extra arguments are added to allow for more flexibility. If bDescend is false, then the directory tree is not descended and only the files in localDirPath are synchronized. If bPreviewOnly is true then no files are transferred and instead the files that would've been transferred (had bPreviewOnly been set to false) are listed in the SyncPreview property.

Note: If bPreviewOnly is set to true, the remote directories (if they do not exist) are created. It is only the files that are not uploaded.

Note: In v9.5.0.51 and higher, the list of uploaded files is available in the SyncedFiles property.

Returns true for success, false for failure.

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SyncRemoteTree2Async (Android™) (Java)
CkTask SyncRemoteTree2Async(String localDirPath, int mode, boolean bDescend, boolean bPreviewOnly);

Creates an asynchronous task to call the SyncRemoteTree2 method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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Syst
boolean Syst(CkString outStr);
String syst();

Sends a SYST command to the FTP server to find out the type of operating system at the server. The method returns the FTP server's response string. Refer to RFC 959 for details.

Returns true for success, false for failure.

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SystAsync (Android™) (Java)
CkTask SystAsync();

Creates an asynchronous task to call the Syst method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.

Returns nil on failure

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Events

Chilkat supports event callbacks in Java (including Android) starting in version 9.5.0.52. To implement an event callback, your application would define and implement a class that derives from CkFtp2Progress. Your application can implement methods to override some or all of the default/empty method implementations of the CkFtp2Progress base class.

For example:

// Install an event callback handler to get progress events.
MyFtp2Progress ftpProgress = new MyFtp2Progress();
http.put_EventCallbackObject(ftpProgress);

MyFtp2Progress example:

import com.chilkatsoft.CkHttpProgress;
import com.chilkatsoft.CkTask;

public class MyFtp2Progress extends CkFtp2Progress 
{	
  public boolean AbortCheck()
  {
    System.out.println("AbortCheck");
    // Return true to abort, false to allow the method to continue.
    return false;
  }
  	
  // pctDone is a value from 0 to 100
  // (it is actually value from 0 to the PercentDoneScale property setting)
  public boolean PercentDone(int pctDone)
  {
    System.out.println(pctDone);
    // Return true to abort, false to allow the method to continue.
    // Note: A PercentDone event is the equivalent of an AbortCheck.  
    // When PercentDone events are frequently firing, AbortCheck events are suppressed.
    // AbortCheck events will fire when the time between PercentDone events is longer 
    // than the HeartbeatMs property setting.
    return false;
  }
  
  public void ProgressInfo(String name, String value)
  {
    System.out.println(name + ": " + value);
  }
  
  public void TaskCompleted(CkTask task)
  {
     System.out.println("task completed!");
  }
  
  
  // All boolean return values are "skip" indicators.
  // Return true to skip the file or directory.
  // Return false to NOT skip (allow) the file or directory to be uploaded/downloaded/deleted.
  
  public boolean BeginDownloadFile(String pathUtf8) 
  {
  	  // Return true to skip downloading the file, return false to NOT skip.
  	  return false;
  }

  public void EndDownloadFile(String pathUtf8, long numBytes) 
  {
  }

  public boolean VerifyDownloadDir(String pathUtf8) 
  {
	  // Return true to skip downloading the directory, return false to NOT skip.
	  return false;
  }

  public boolean BeginUploadFile(String pathUtf8) 
  {
	  // Return true to skip uploading the file, return false to NOT skip.
	  return false;
  }

  public void EndUploadFile(String pathUtf8, long numBytes) 
  {
  }

  public boolean VerifyUploadDir(String pathUtf8) 
  {
 	  // Return true to skip uploading the directory, return false to NOT skip.
	  return false;
  }

  public boolean VerifyDeleteDir(String pathUtf8) 
  {
 	  // Return true to skip deleting the directory, return false to NOT skip.
	  return false;
  }

  public boolean VerifyDeleteFile(String pathUtf8) 
  {
   	  // Return true to skip deleting the file, return false to NOT skip.
	  return false;
}

  public void UploadRate(long byteCount, long bytesPerSec) 
  {
  }

  public void DownloadRate(long byteCount, long bytesPerSec) 
  {
  }


}
AbortCheck
public boolean AbortCheck();

Provides the opportunity for a method call to be aborted. The AbortCheck event is fired periodically based on the value of the HeartbeatMs property. If HeartbeatMs is 0, then no AbortCheck events will fire. As an example, to fire 5 AbortCheck events per second, set the HeartbeatMs property equal to 200. Return true to abort; return false to continue (not abort)

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BeginDownloadFile
public boolean BeginDownloadFile(String path);

Called just before a file is to be downloaded. Return true to skip this file; return false to not skip.

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BeginUploadFile
public boolean BeginUploadFile(String path);

Called just prior to uploading a file. Return true to skip this file; return false to not skip.

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DownloadRate
public void DownloadRate(long long byteCount, int bytesPerSec);

Called periodically with download progress information: The byteCount is the cumulative number of bytes downloaded so far. The bytesPerSec is the current transfer rate in bytes per second.

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EndDownloadFile
public void EndDownloadFile(String path, long long byteCount);

Called just after a file download has completed.

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EndUploadFile
public void EndUploadFile(String path, long long byteCount);

Called just after a file upload has completed.

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PercentDone
public boolean PercentDone(int pctDone);

Provides the percentage completed for any method that involves network communications or time-consuming processing (assuming it is a method where a percentage completion can be measured). This event is only fired when it is possible to know a percentage completion, and when it makes sense to express the operation as a percentage completed. The pctDone argument will have a value from 1 to 100. For operations (Chilkat method calls) that complete very quickly, the number of PercentDone callbacks will vary, but the final callback should have a value of 100. For long running operations, no more than one callback per percentage point will occur (for example: 1, 2, 3, ... 98, 99, 100).

The PercentDone callback counts as an AbortCheck event. For method calls that complete quickly such that PercentDone events fire, it may be that AbortCheck events don't fire because the opportunity to abort is already provided in the PercentDone callback. For time consuming operations, where the amount of time between PercentDone callbacks are long, AbortCheck callbacks may be used to allow for the operation to be aborted in a more responsive manner.

Return true to abort; return false to continue (not abort)

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ProgressInfo
public void ProgressInfo(String name, String value);

A general name/value event that provides information about what is happening during a method call. To find out what information is available, write code to handle this event and log the name/value pairs. Most are self-explanatory.

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TaskCompleted
public void TaskCompleted(CkTask task);

Called in the background thread when an asynchronous task completes.

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UploadRate
public void UploadRate(long long byteCount, int bytesPerSec);

Called periodically with upload progress information: The byteCount is the cumulative number of bytes uploaded so far. The bytesPerSec is the current transfer rate in bytes per second.

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VerifyDeleteDir
public boolean VerifyDeleteDir(String path);

Fired just prior to recursively descending into a remote directory tree for deleting. Return true to skip this file; return false to not skip.

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VerifyDeleteFile
public boolean VerifyDeleteFile(String path);

Fired just prior to deleting a remote file. Return true to skip this file; return false to not skip.

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VerifyDownloadDir
public boolean VerifyDownloadDir(String path);

Fired just prior to recursively descending into a directory tree for downloading. Return true to skip this file; return false to not skip.

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VerifyUploadDir
public boolean VerifyUploadDir(String path);

Fired just prior to recursively descending into a directory tree for uploading. Return true to skip this file; return false to not skip.

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