jcifs.smb

Class SmbFile

public class SmbFile extends URLConnection implements SmbConstants

This class represents a resource on an SMB network. Mainly these resources are files and directories however an SmbFile may also refer to servers and workgroups. If the resource is a file or directory the methods of SmbFile follow the behavior of the well known java.io.File class. One fundamental difference is the usage of a URL scheme [1] to specify the target file or directory. SmbFile URLs have the following syntax:
     smb://[[[domain;]username[:password]@]server[:port]/[[share/[dir/]file]]][?[param=value[param2=value2[...]]]
 
This example:
     smb://storage15/public/foo.txt
 
would reference the file foo.txt in the share public on the server storage15. In addition to referencing files and directories, jCIFS can also address servers, and workgroups.

Important: all SMB URLs that represent workgroups, servers, shares, or directories require a trailing slash '/'.

When using the java.net.URL class with 'smb://' URLs it is necessary to first call the static jcifs.Config.registerSmbURLHandler(); method. This is required to register the SMB protocol handler.

The userinfo component of the SMB URL (domain;user:pass) must be URL encoded if it contains reserved characters. According to RFC 2396 these characters are non US-ASCII characters and most meta characters however jCIFS will work correctly with anything but '@' which is used to delimit the userinfo component from the server and '%' which is the URL escape character itself.

The server component may a traditional NetBIOS name, a DNS name, or IP address. These name resolution mechanisms and their resolution order can be changed (See Setting Name Resolution Properties). The servername and path components are not case sensitive but the domain, username, and password components are. It is also likely that properties must be specified for jcifs to function (See Setting JCIFS Properties). Here are some examples of SMB URLs with brief descriptions of what they do:

[1] This URL scheme is based largely on the SMB Filesharing URL Scheme IETF draft.

SMB URL Examples
URLDescription
smb://users-nyc;miallen:mypass@angus/tmp/ This URL references a share called tmp on the server angus as user miallen who's password is mypass.
smb://Administrator:P%40ss@msmith1/c/WINDOWS/Desktop/foo.txt A relativly sophisticated example that references a file msmith1's desktop as user Administrator. Notice the '@' is URL encoded with the '%40' hexcode escape.
smb://angus/ This references only a server. The behavior of some methods is different in this context(e.g. you cannot delete a server) however as you might expect the list method will list the available shares on this server.
smb://myworkgroup/ This syntactically is identical to the above example. However if myworkgroup happends to be a workgroup(which is indeed suggested by the name) the list method will return a list of servers that have registered themselves as members of myworkgroup.
smb:// Just as smb://server/ lists shares and smb://workgroup/ lists servers, the smb:// URL lists all available workgroups on a netbios LAN. Again, in this context many methods are not valid and return default values(e.g. isHidden and renameTo will always return false).
smb://angus.foo.net/d/jcifs/pipes.doc The server name may also be a DNS name as it is in this example. See Setting Name Resolution Properties for details.
smb://192.168.1.15/ADMIN$/ The server name may also be an IP address. See Setting Name Resolution Properties for details.
smb://domain;username:password@server/share/path/to/file.txt A prototypical example that uses all the fields.
smb://myworkgroup/angus/ <-- ILLEGAL Despite the hierarchial relationship between workgroups, servers, and filesystems this example is not valid.
smb://server/share/path/to/dir <-- ILLEGAL URLs that represent workgroups, servers, shares, or directories require a trailing slash '/'.
smb://MYGROUP/?SERVER=192.168.10.15 SMB URLs support some query string parameters. In this example the SERVER parameter is used to override the server name service lookup to contact the server 192.168.10.15 (presumably known to be a master browser) for the server list in workgroup MYGROUP.

A second constructor argument may be specified to augment the URL for better programmatic control when processing many files under a common base. This is slightly different from the corresponding java.io.File usage; a '/' at the beginning of the second parameter will still use the server component of the first parameter. The examples below illustrate the resulting URLs when this second contructor argument is used.

Examples Of SMB URLs When Augmented With A Second Constructor Parameter
First ParameterSecond ParameterResult
smb://host/share/a/b/ c/d/ smb://host/share/a/b/c/d/
smb://host/share/foo/bar/ /share2/zig/zag smb://host/share2/zig/zag
smb://host/share/foo/bar/ ../zip/ smb://host/share/foo/zip/
smb://host/share/zig/zag smb://foo/bar/ smb://foo/bar/
smb://host/share/foo/ ../.././.././../foo/ smb://host/foo/
smb://host/share/zig/zag / smb://host/
smb://server/ ../ smb://server/
smb:// myworkgroup/ smb://myworkgroup/
smb://myworkgroup/ angus/ smb://myworkgroup/angus/ <-- ILLEGAL
(But if you first create an SmbFile with 'smb://workgroup/' and use and use it as the first parameter to a constructor that accepts it with a second String parameter jCIFS will factor out the 'workgroup'.)

Instances of the SmbFile class are immutable; that is, once created, the abstract pathname represented by an SmbFile object will never change.

See Also: java.io.File

Field Summary
static intATTR_ARCHIVE
A file with this bit on as returned by getAttributes() or set with setAttributes() is an archived file
static intATTR_DIRECTORY
A file with this bit on as returned by getAttributes() is a directory
static intATTR_HIDDEN
A file with this bit on as returned by getAttributes() or set with setAttributes() will be hidden
static intATTR_READONLY
A file with this bit on as returned by getAttributes() or set with setAttributes() will be read-only
static intATTR_SYSTEM
A file with this bit on as returned by getAttributes() or set with setAttributes() will be a system file
static intATTR_VOLUME
A file with this bit on as returned by getAttributes() is a volume
static intFILE_NO_SHARE
When specified as the shareAccess constructor parameter, other SMB clients (including other threads making calls into jCIFS) will not be permitted to access the target file and will receive "The file is being accessed by another process" message.
static intFILE_SHARE_DELETE
When specified as the shareAccess constructor parameter, other SMB clients will be permitted to delete the target file while this file is open.
static intFILE_SHARE_READ
When specified as the shareAccess constructor parameter, other SMB clients will be permitted to read from the target file while this file is open.
static intFILE_SHARE_WRITE
When specified as the shareAccess constructor parameter, other SMB clients will be permitted to write to the target file while this file is open.
static intTYPE_COMM
Returned by getType if the resource this SmbFile represents is a communications device.
static intTYPE_FILESYSTEM
Returned by getType if the resource this SmbFile represents is a regular file or directory.
static intTYPE_NAMED_PIPE
Returned by getType if the resource this SmbFile represents is a named pipe.
static intTYPE_PRINTER
Returned by getType if the resource this SmbFile represents is a printer.
static intTYPE_SERVER
Returned by getType if the resource this SmbFile represents is a server.
static intTYPE_SHARE
Returned by getType if the resource this SmbFile represents is a share.
static intTYPE_WORKGROUP
Returned by getType if the resource this SmbFile represents is a workgroup.
Constructor Summary
SmbFile(String url)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory.
SmbFile(SmbFile context, String name)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory.
SmbFile(String context, String name)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory.
SmbFile(String url, NtlmPasswordAuthentication auth)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory.
SmbFile(String url, NtlmPasswordAuthentication auth, int shareAccess)
Constructs an SmbFile representing a file on an SMB network.
SmbFile(String context, String name, NtlmPasswordAuthentication auth)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory.
SmbFile(String context, String name, NtlmPasswordAuthentication auth, int shareAccess)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory.
SmbFile(SmbFile context, String name, int shareAccess)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory.
SmbFile(URL url)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory from a URL object.
SmbFile(URL url, NtlmPasswordAuthentication auth)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory from a URL object and an NtlmPasswordAuthentication object.
Method Summary
booleancanRead()
Tests to see if the file this SmbFile represents can be read.
booleancanWrite()
Tests to see if the file this SmbFile represents exists and is not marked read-only.
voidconnect()
It is not necessary to call this method directly.
voidcopyTo(SmbFile dest)
This method will copy the file or directory represented by this SmbFile and it's sub-contents to the location specified by the dest parameter.
voidcreateNewFile()
Create a new file but fail if it already exists.
longcreateTime()
Retrieve the time this SmbFile was created.
voiddelete()
This method will delete the file or directory specified by this SmbFile.
booleanequals(Object obj)
Tests to see if two SmbFile objects are equal.
booleanexists()
Tests to see if the SMB resource exists.
intgetAttributes()
Return the attributes of this file.
StringgetCanonicalPath()
Returns the full URL of this SMB resource with '.' and '..' components factored out.
intgetContentLength()
This URLConnection method just returns the result of length().
longgetDate()
This URLConnection method just returns the result of lastModified.
StringgetDfsPath()
If the path of this SmbFile falls within a DFS volume, this method will return the referral path to which it maps.
longgetDiskFreeSpace()
This method returns the free disk space in bytes of the drive this share represents or the drive on which the directory or file resides.
InputStreamgetInputStream()
This URLConnection method just returns a new SmbFileInputStream created with this file.
longgetLastModified()
This URLConnection method just returns the result of lastModified.
StringgetName()
Returns the last component of the target URL.
OutputStreamgetOutputStream()
This URLConnection method just returns a new SmbFileOutputStream created with this file.
StringgetParent()
Everything but the last component of the URL representing this SMB resource is effectivly it's parent.
StringgetPath()
Returns the full uncanonicalized URL of this SMB resource.
PrincipalgetPrincipal()
Returns the NtlmPasswordAuthentication object used as credentials with this file or pipe.
ACE[]getSecurity(boolean resolveSids)
Return an array of Access Control Entry (ACE) objects representing the security descriptor associated with this file or directory.
ACE[]getSecurity()
Return an array of Access Control Entry (ACE) objects representing the security descriptor associated with this file or directory.
StringgetServer()
Retrieve the hostname of the server for this SMB resource.
StringgetShare()
Retrieves the share associated with this SMB resource.
ACE[]getShareSecurity(boolean resolveSids)
Return an array of Access Control Entry (ACE) objects representing the share permissions on the share exporting this file or directory.
intgetType()
Returns type of of object this SmbFile represents.
StringgetUncPath()
Retuns the Windows UNC style path with backslashs intead of forward slashes.
inthashCode()
Computes a hashCode for this file based on the URL string and IP address if the server.
booleanisDirectory()
Tests to see if the file this SmbFile represents is a directory.
booleanisFile()
Tests to see if the file this SmbFile represents is not a directory.
booleanisHidden()
Tests to see if the file this SmbFile represents is marked as hidden.
longlastModified()
Retrieve the last time the file represented by this SmbFile was modified.
longlength()
Returns the length of this SmbFile in bytes.
String[]list()
List the contents of this SMB resource.
String[]list(SmbFilenameFilter filter)
List the contents of this SMB resource.
SmbFile[]listFiles()
List the contents of this SMB resource as an array of SmbFile objects.
SmbFile[]listFiles(String wildcard)
The CIFS protocol provides for DOS "wildcards" to be used as a performance enhancement.
SmbFile[]listFiles(SmbFilenameFilter filter)
List the contents of this SMB resource.
SmbFile[]listFiles(SmbFileFilter filter)
List the contents of this SMB resource.
voidmkdir()
Creates a directory with the path specified by this SmbFile.
voidmkdirs()
Creates a directory with the path specified by this SmbFile and any parent directories that do not exist.
voidrenameTo(SmbFile dest)
Changes the name of the file this SmbFile represents to the name designated by the SmbFile argument.
voidsetAttributes(int attrs)
Set the attributes of this file.
voidsetCreateTime(long time)
Set the create time of the file.
voidsetLastModified(long time)
Set the last modified time of the file.
voidsetReadOnly()
Make this file read-only.
voidsetReadWrite()
Turn off the read-only attribute of this file.
StringtoString()
Returns the string representation of this SmbFile object.
URLtoURL()
Returns a java.net.URL for this SmbFile.

Field Detail

ATTR_ARCHIVE

public static final int ATTR_ARCHIVE
A file with this bit on as returned by getAttributes() or set with setAttributes() is an archived file

ATTR_DIRECTORY

public static final int ATTR_DIRECTORY
A file with this bit on as returned by getAttributes() is a directory

ATTR_HIDDEN

public static final int ATTR_HIDDEN
A file with this bit on as returned by getAttributes() or set with setAttributes() will be hidden

ATTR_READONLY

public static final int ATTR_READONLY
A file with this bit on as returned by getAttributes() or set with setAttributes() will be read-only

ATTR_SYSTEM

public static final int ATTR_SYSTEM
A file with this bit on as returned by getAttributes() or set with setAttributes() will be a system file

ATTR_VOLUME

public static final int ATTR_VOLUME
A file with this bit on as returned by getAttributes() is a volume

FILE_NO_SHARE

public static final int FILE_NO_SHARE
When specified as the shareAccess constructor parameter, other SMB clients (including other threads making calls into jCIFS) will not be permitted to access the target file and will receive "The file is being accessed by another process" message.

FILE_SHARE_DELETE

public static final int FILE_SHARE_DELETE
When specified as the shareAccess constructor parameter, other SMB clients will be permitted to delete the target file while this file is open. This constant may be logically OR'd with other share access flags.

FILE_SHARE_READ

public static final int FILE_SHARE_READ
When specified as the shareAccess constructor parameter, other SMB clients will be permitted to read from the target file while this file is open. This constant may be logically OR'd with other share access flags.

FILE_SHARE_WRITE

public static final int FILE_SHARE_WRITE
When specified as the shareAccess constructor parameter, other SMB clients will be permitted to write to the target file while this file is open. This constant may be logically OR'd with other share access flags.

TYPE_COMM

public static final int TYPE_COMM
Returned by getType if the resource this SmbFile represents is a communications device.

TYPE_FILESYSTEM

public static final int TYPE_FILESYSTEM
Returned by getType if the resource this SmbFile represents is a regular file or directory.

TYPE_NAMED_PIPE

public static final int TYPE_NAMED_PIPE
Returned by getType if the resource this SmbFile represents is a named pipe.

TYPE_PRINTER

public static final int TYPE_PRINTER
Returned by getType if the resource this SmbFile represents is a printer.

TYPE_SERVER

public static final int TYPE_SERVER
Returned by getType if the resource this SmbFile represents is a server.

TYPE_SHARE

public static final int TYPE_SHARE
Returned by getType if the resource this SmbFile represents is a share.

TYPE_WORKGROUP

public static final int TYPE_WORKGROUP
Returned by getType if the resource this SmbFile represents is a workgroup.

Constructor Detail

SmbFile

public SmbFile(String url)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory. See the description and examples of smb URLs above.

Parameters: url A URL string

Throws: MalformedURLException If the parent and child parameters do not follow the prescribed syntax

SmbFile

public SmbFile(SmbFile context, String name)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory. The second parameter is a relative path from the parent SmbFile. See the description above for examples of using the second name parameter.

Parameters: context A base SmbFile name A path string relative to the parent paremeter

Throws: MalformedURLException If the parent and child parameters do not follow the prescribed syntax UnknownHostException If the server or workgroup of the context file cannot be determined

SmbFile

public SmbFile(String context, String name)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory. The second parameter is a relative path from the parent. See the description above for examples of using the second chile parameter.

Parameters: context A URL string name A path string relative to the context paremeter

Throws: MalformedURLException If the context and name parameters do not follow the prescribed syntax

SmbFile

public SmbFile(String url, NtlmPasswordAuthentication auth)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory.

Parameters: url A URL string auth The credentials the client should use for authentication

Throws: MalformedURLException If the url parameter does not follow the prescribed syntax

SmbFile

public SmbFile(String url, NtlmPasswordAuthentication auth, int shareAccess)
Constructs an SmbFile representing a file on an SMB network. The shareAccess parameter controls what permissions other clients have when trying to access the same file while this instance is still open. This value is either FILE_NO_SHARE or any combination of FILE_SHARE_READ, FILE_SHARE_WRITE, and FILE_SHARE_DELETE logically OR'd together.

Parameters: url A URL string auth The credentials the client should use for authentication shareAccess Specifies what access other clients have while this file is open.

Throws: MalformedURLException If the url parameter does not follow the prescribed syntax

SmbFile

public SmbFile(String context, String name, NtlmPasswordAuthentication auth)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory. The second parameter is a relative path from the context. See the description above for examples of using the second name parameter.

Parameters: context A URL string name A path string relative to the context paremeter auth The credentials the client should use for authentication

Throws: MalformedURLException If the context and name parameters do not follow the prescribed syntax

SmbFile

public SmbFile(String context, String name, NtlmPasswordAuthentication auth, int shareAccess)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory. The second parameter is a relative path from the context. See the description above for examples of using the second name parameter. The shareAccess parameter controls what permissions other clients have when trying to access the same file while this instance is still open. This value is either FILE_NO_SHARE or any combination of FILE_SHARE_READ, FILE_SHARE_WRITE, and FILE_SHARE_DELETE logically OR'd together.

Parameters: context A URL string name A path string relative to the context paremeter auth The credentials the client should use for authentication shareAccess Specifies what access other clients have while this file is open.

Throws: MalformedURLException If the context and name parameters do not follow the prescribed syntax

SmbFile

public SmbFile(SmbFile context, String name, int shareAccess)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory. The second parameter is a relative path from the context. See the description above for examples of using the second name parameter. The shareAccess parameter controls what permissions other clients have when trying to access the same file while this instance is still open. This value is either FILE_NO_SHARE or any combination of FILE_SHARE_READ, FILE_SHARE_WRITE, and FILE_SHARE_DELETE logically OR'd together.

Parameters: context A base SmbFile name A path string relative to the context file path shareAccess Specifies what access other clients have while this file is open.

Throws: MalformedURLException If the context and name parameters do not follow the prescribed syntax

SmbFile

public SmbFile(URL url)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory from a URL object.

Parameters: url The URL of the target resource

SmbFile

public SmbFile(URL url, NtlmPasswordAuthentication auth)
Constructs an SmbFile representing a resource on an SMB network such as a file or directory from a URL object and an NtlmPasswordAuthentication object.

Parameters: url The URL of the target resource auth The credentials the client should use for authentication

Method Detail

canRead

public boolean canRead()
Tests to see if the file this SmbFile represents can be read. Because any file, directory, or other resource can be read if it exists, this method simply calls the exists method.

Returns: true if the file is read-only

canWrite

public boolean canWrite()
Tests to see if the file this SmbFile represents exists and is not marked read-only. By default, resources are considered to be read-only and therefore for smb://, smb://workgroup/, and smb://server/ resources will be read-only.

Returns: true if the resource exists is not marked read-only

connect

public void connect()
It is not necessary to call this method directly. This is the URLConnection implementation of connect().

copyTo

public void copyTo(SmbFile dest)
This method will copy the file or directory represented by this SmbFile and it's sub-contents to the location specified by the dest parameter. This file and the destination file do not need to be on the same host. This operation does not copy extended file attibutes such as ACLs but it does copy regular attributes as well as create and last write times. This method is almost twice as efficient as manually copying as it employs an additional write thread to read and write data concurrently.

It is not possible (nor meaningful) to copy entire workgroups or servers.

Parameters: dest the destination file or directory

Throws: SmbException

createNewFile

public void createNewFile()
Create a new file but fail if it already exists. The check for existance of the file and it's creation are an atomic operation with respect to other filesystem activities.

createTime

public long createTime()
Retrieve the time this SmbFile was created. The value returned is suitable for constructing a java.util.Date object (i.e. seconds since Epoch 1970). Times should be the same as those reported using the properties dialog of the Windows Explorer program. For Win95/98/Me this is actually the last write time. It is currently not possible to retrieve the create time from files on these systems.

Returns: The number of milliseconds since the 00:00:00 GMT, January 1, 1970 as a long value

delete

public void delete()
This method will delete the file or directory specified by this SmbFile. If the target is a directory, the contents of the directory will be deleted as well. If a file within the directory or it's sub-directories is marked read-only, the read-only status will be removed and the file will be deleted.

Throws: SmbException

equals

public boolean equals(Object obj)
Tests to see if two SmbFile objects are equal. Two SmbFile objects are equal when they reference the same SMB resource. More specifically, two SmbFile objects are equals if their server IP addresses are equal and the canonicalized representation of their URLs, minus authentication parameters, are case insensitivly and lexographically equal.

For example, assuming the server angus resolves to the 192.168.1.15 IP address, the below URLs would result in SmbFiles that are equal.

 smb://192.168.1.15/share/DIR/foo.txt
 smb://angus/share/data/../dir/foo.txt
 

Parameters: obj Another SmbFile object to compare for equality

Returns: true if the two objects refer to the same SMB resource and false otherwise

Throws: SmbException

exists

public boolean exists()
Tests to see if the SMB resource exists. If the resource refers only to a server, this method determines if the server exists on the network and is advertising SMB services. If this resource refers to a workgroup, this method determines if the workgroup name is valid on the local SMB network. If this SmbFile refers to the root smb:// resource true is always returned. If this SmbFile is a traditional file or directory, it will be queried for on the specified server as expected.

Returns: true if the resource exists or is alive or false otherwise

getAttributes

public int getAttributes()
Return the attributes of this file. Attributes are represented as a bitset that must be masked with ATTR_* constants to determine if they are set or unset. The value returned is suitable for use with the setAttributes() method.

Returns: the ATTR_* attributes associated with this file

Throws: SmbException

getCanonicalPath

public String getCanonicalPath()
Returns the full URL of this SMB resource with '.' and '..' components factored out. An SmbFile constructed with the result of this method will result in an SmbFile that is equal to the original.

Returns: The canonicalized URL of this SMB resource.

getContentLength

public int getContentLength()
This URLConnection method just returns the result of length().

Returns: the length of this file or 0 if it refers to a directory

getDate

public long getDate()
This URLConnection method just returns the result of lastModified.

Returns: the last modified data as milliseconds since Jan 1, 1970

getDfsPath

public String getDfsPath()
If the path of this SmbFile falls within a DFS volume, this method will return the referral path to which it maps. Otherwise null is returned.

getDiskFreeSpace

public long getDiskFreeSpace()
This method returns the free disk space in bytes of the drive this share represents or the drive on which the directory or file resides. Objects other than TYPE_SHARE or TYPE_FILESYSTEM will result in 0L being returned.

Returns: the free disk space in bytes of the drive on which this file or directory resides

getInputStream

public InputStream getInputStream()
This URLConnection method just returns a new SmbFileInputStream created with this file.

Throws: IOException thrown by SmbFileInputStream constructor

getLastModified

public long getLastModified()
This URLConnection method just returns the result of lastModified.

Returns: the last modified data as milliseconds since Jan 1, 1970

getName

public String getName()
Returns the last component of the target URL. This will effectively be the name of the file or directory represented by this SmbFile or in the case of URLs that only specify a server or workgroup, the server or workgroup will be returned. The name of the root URL smb:// is also smb://. If this SmbFile refers to a workgroup, server, share, or directory, the name will include a trailing slash '/' so that composing new SmbFiles will maintain the trailing slash requirement.

Returns: The last component of the URL associated with this SMB resource or smb:// if the resource is smb:// itself.

getOutputStream

public OutputStream getOutputStream()
This URLConnection method just returns a new SmbFileOutputStream created with this file.

Throws: IOException thrown by SmbFileOutputStream constructor

getParent

public String getParent()
Everything but the last component of the URL representing this SMB resource is effectivly it's parent. The root URL smb:// does not have a parent. In this case smb:// is returned.

Returns: The parent directory of this SMB resource or smb:// if the resource refers to the root of the URL hierarchy which incedentally is also smb://.

getPath

public String getPath()
Returns the full uncanonicalized URL of this SMB resource. An SmbFile constructed with the result of this method will result in an SmbFile that is equal to the original.

Returns: The uncanonicalized full URL of this SMB resource.

getPrincipal

public Principal getPrincipal()
Returns the NtlmPasswordAuthentication object used as credentials with this file or pipe. This can be used to retrieve the username for example: String username = f.getPrincipal().getName(); The Principal object returned will never be null however the username can be null indication anonymous credentials were used (e.g. some IPC$ services).

getSecurity

public ACE[] getSecurity(boolean resolveSids)
Return an array of Access Control Entry (ACE) objects representing the security descriptor associated with this file or directory.

Parameters: resolveSids Attempt to resolve the SIDs within each ACE form their numeric representation to their corresponding account names.

getSecurity

public ACE[] getSecurity()
Return an array of Access Control Entry (ACE) objects representing the security descriptor associated with this file or directory.

Initially, the SIDs within each ACE will not be resolved however when getType(), getDomainName(), getAccountName(), or toString() is called, the names will attempt to be resolved. If the names cannot be resolved (e.g. due to temporary network failure), the said methods will return default values (usually S-X-Y-Z strings of fragments of).

Alternatively getSecurity(true) may be used to resolve all SIDs together and detect network failures.

getServer

public String getServer()
Retrieve the hostname of the server for this SMB resource. If this SmbFile references a workgroup, the name of the workgroup is returned. If this SmbFile refers to the root of this SMB network hierarchy, null is returned.

Returns: The server or workgroup name or null if this SmbFile refers to the root smb:// resource.

getShare

public String getShare()
Retrieves the share associated with this SMB resource. In the case of smb://, smb://workgroup/, and smb://server/ URLs which do not specify a share, null will be returned.

Returns: The share component or null if there is no share

getShareSecurity

public ACE[] getShareSecurity(boolean resolveSids)
Return an array of Access Control Entry (ACE) objects representing the share permissions on the share exporting this file or directory.

Note that this is different from calling getSecurity on a share. There are actually two different ACLs for shares - the ACL on the share and the ACL on the folder being shared. Go to Computer Management > System Tools > Shared Folders > Shares and look at the Properties for a share. You will see two tabs - one for "Share Permissions" and another for "Security". These correspond to the ACLs returned by getShareSecurity and getSecurity respectively.

Parameters: resolveSids Attempt to resolve the SIDs within each ACE form their numeric representation to their corresponding account names.

getType

public int getType()
Returns type of of object this SmbFile represents.

Returns: TYPE_FILESYSTEM, TYPE_WORKGROUP, TYPE_SERVER, TYPE_SHARE, TYPE_PRINTER, TYPE_NAMED_PIPE, or TYPE_COMM.

getUncPath

public String getUncPath()
Retuns the Windows UNC style path with backslashs intead of forward slashes.

Returns: The UNC path.

hashCode

public int hashCode()
Computes a hashCode for this file based on the URL string and IP address if the server. The hashing function uses the hashcode of the server address, the canonical representation of the URL, and does not compare authentication information. In essance, two SmbFile objects that refer to the same file should generate the same hashcode provided it is possible to make such a determination.

Returns: A hashcode for this abstract file

Throws: SmbException

isDirectory

public boolean isDirectory()
Tests to see if the file this SmbFile represents is a directory.

Returns: true if this SmbFile is a directory

isFile

public boolean isFile()
Tests to see if the file this SmbFile represents is not a directory.

Returns: true if this SmbFile is not a directory

isHidden

public boolean isHidden()
Tests to see if the file this SmbFile represents is marked as hidden. This method will also return true for shares with names that end with '$' such as IPC$ or C$.

Returns: true if the SmbFile is marked as being hidden

lastModified

public long lastModified()
Retrieve the last time the file represented by this SmbFile was modified. The value returned is suitable for constructing a java.util.Date object (i.e. seconds since Epoch 1970). Times should be the same as those reported using the properties dialog of the Windows Explorer program.

Returns: The number of milliseconds since the 00:00:00 GMT, January 1, 1970 as a long value

length

public long length()
Returns the length of this SmbFile in bytes. If this object is a TYPE_SHARE the total capacity of the disk shared in bytes is returned. If this object is a directory or a type other than TYPE_SHARE, 0L is returned.

Returns: The length of the file in bytes or 0 if this SmbFile is not a file.

Throws: SmbException

list

public String[] list()
List the contents of this SMB resource. The list returned by this method will be;

Returns: A String[] array of files and directories, workgroups, servers, or shares depending on the context of the resource URL

list

public String[] list(SmbFilenameFilter filter)
List the contents of this SMB resource. The list returned will be identical to the list returned by the parameterless list() method minus filenames filtered by the specified filter.

Parameters: filter a filename filter to exclude filenames from the results

Throws: SmbException # @return An array of filenames

listFiles

public SmbFile[] listFiles()
List the contents of this SMB resource as an array of SmbFile objects. This method is much more efficient than the regular list method when querying attributes of each file in the result set.

The list of SmbFiles returned by this method will be;

Returns: An array of SmbFile objects representing file and directories, workgroups, servers, or shares depending on the context of the resource URL

listFiles

public SmbFile[] listFiles(String wildcard)
The CIFS protocol provides for DOS "wildcards" to be used as a performance enhancement. The client does not have to filter the names and the server does not have to return all directory entries.

The wildcard expression may consist of two special meta characters in addition to the normal filename characters. The '*' character matches any number of characters in part of a name. If the expression begins with one or more '?'s then exactly that many characters will be matched whereas if it ends with '?'s it will match that many characters or less.

Wildcard expressions will not filter workgroup names or server names.

 winnt> ls c?o*
 clock.avi                  -rw--      82944 Mon Oct 14 1996 1:38 AM
 Cookies                    drw--          0 Fri Nov 13 1998 9:42 PM
 2 items in 5ms
 

Parameters: wildcard a wildcard expression

Returns: An array of SmbFile objects representing file and directories, workgroups, servers, or shares depending on the context of the resource URL

Throws: SmbException

listFiles

public SmbFile[] listFiles(SmbFilenameFilter filter)
List the contents of this SMB resource. The list returned will be identical to the list returned by the parameterless listFiles() method minus files filtered by the specified filename filter.

Parameters: filter a filter to exclude files from the results

Returns: An array of SmbFile objects

Throws: SmbException

listFiles

public SmbFile[] listFiles(SmbFileFilter filter)
List the contents of this SMB resource. The list returned will be identical to the list returned by the parameterless listFiles() method minus filenames filtered by the specified filter.

Parameters: filter a file filter to exclude files from the results

Returns: An array of SmbFile objects

mkdir

public void mkdir()
Creates a directory with the path specified by this SmbFile. For this method to be successful, the target must not already exist. This method will fail when used with smb://, smb://workgroup/, smb://server/, or smb://server/share/ URLs because workgroups, servers, and shares cannot be dynamically created (although in the future it may be possible to create shares).

Throws: SmbException

mkdirs

public void mkdirs()
Creates a directory with the path specified by this SmbFile and any parent directories that do not exist. This method will fail when used with smb://, smb://workgroup/, smb://server/, or smb://server/share/ URLs because workgroups, servers, and shares cannot be dynamically created (although in the future it may be possible to create shares).

Throws: SmbException

renameTo

public void renameTo(SmbFile dest)
Changes the name of the file this SmbFile represents to the name designated by the SmbFile argument.

Remember: SmbFiles are immutible and therefore the path associated with this SmbFile object will not change). To access the renamed file it is necessary to construct a new SmbFile.

Parameters: dest An SmbFile that represents the new pathname

Returns: true if the file or directory was successfully renamed

Throws: NullPointerException If the dest argument is null

setAttributes

public void setAttributes(int attrs)
Set the attributes of this file. Attributes are composed into a bitset by bitwise ORing the ATTR_* constants. Setting the value returned by getAttributes will result in both files having the same attributes.

Throws: SmbException

setCreateTime

public void setCreateTime(long time)
Set the create time of the file. The time is specified as milliseconds from Jan 1, 1970 which is the same as that which is returned by the createTime() method.

This method does not apply to workgroups, servers, or shares.

Parameters: time the create time as milliseconds since Jan 1, 1970

setLastModified

public void setLastModified(long time)
Set the last modified time of the file. The time is specified as milliseconds from Jan 1, 1970 which is the same as that which is returned by the lastModified(), getLastModified(), and getDate() methods.

This method does not apply to workgroups, servers, or shares.

Parameters: time the last modified time as milliseconds since Jan 1, 1970

setReadOnly

public void setReadOnly()
Make this file read-only. This is shorthand for setAttributes( getAttributes() | ATTR_READ_ONLY ).

Throws: SmbException

setReadWrite

public void setReadWrite()
Turn off the read-only attribute of this file. This is shorthand for setAttributes( getAttributes() & ~ATTR_READONLY ).

Throws: SmbException

toString

public String toString()
Returns the string representation of this SmbFile object. This will be the same as the URL used to construct this SmbFile. This method will return the same value as getPath.

Returns: The original URL representation of this SMB resource

Throws: SmbException

toURL

public URL toURL()

Deprecated: Use getURL() instead

Returns a java.net.URL for this SmbFile. The URL may be used as any other URL might to access an SMB resource. Currently only retrieving data and information is supported (i.e. no doOutput).

Returns: A new java.net.URL for this SmbFile

Throws: MalformedURLException