org.italiangrid.voms.util

Class FilePermissionHelper

java.lang.Object

org.italiangrid.voms.util.FilePermissionHelper

public class FilePermissionHelper
extends Object

An helper class that does simple unix file permissions checks (until we get proper support for this stuff in Java 7)

Author:

Andrea Ceccanti

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FilePermissionHelper.PosixFilePermission

Field Summary

Fields

Modifier and Type	Field and Description
static String	CHMOD_CMD_TEMPLATE The command used to set file permissions on a given file
static String	LS_CMD_TEMPLATE The command used to retrieve file permissions for a given file
static EnumSet<FilePermissionHelper.PosixFilePermission>	PRIVATE_KEY_PERMS Required file permissions for the private key file
static String	PRIVATE_KEY_PERMS_STR String representation of private key required permissions.

Constructor Summary

Constructors

Constructor and Description
FilePermissionHelper()

Method Summary

Methods

Modifier and Type	Method and Description
static void	checkPKCS12Permissions(String pkcs12File) Chekcs whether a pkcs12 file has the 'right' permissions
static void	checkPrivateKeyPermissions(String privateKeyFile) Checks whether a private key file has the 'right' permissions
static void	checkProxyPermissions(String proxyFile) Checks whether a proxy file has the right permissions
static void	matchesFilePermissions(String filename, FilePermissionHelper.PosixFilePermission p) Checks that a given file has the appropriate unix permissions.
static void	setFilePermissions(String filename, FilePermissionHelper.PosixFilePermission perm)
static void	setPKCS12Permissions(String filename)
static void	setPrivateKeyPermissions(String filename)
static void	setProxyPermissions(String filename)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PRIVATE_KEY_PERMS

public static final EnumSet<FilePermissionHelper.PosixFilePermission> PRIVATE_KEY_PERMS

Required file permissions for the private key file

PRIVATE_KEY_PERMS_STR

public static final String PRIVATE_KEY_PERMS_STR

String representation of private key required permissions.

LS_CMD_TEMPLATE

public static final String LS_CMD_TEMPLATE

The command used to retrieve file permissions for a given file

See Also:

Constant Field Values

CHMOD_CMD_TEMPLATE

public static final String CHMOD_CMD_TEMPLATE

The command used to set file permissions on a given file

See Also:

Constant Field Values

Constructor Detail

FilePermissionHelper

public FilePermissionHelper()

Method Detail

checkProxyPermissions

public static void checkProxyPermissions(String proxyFile)
                                  throws IOException

Checks whether a proxy file has the right permissions

Parameters:

proxyFile - the file to be checked

Throws:

IOException - if an error occurs checking file attributes

FilePermissionError - if permissions are not as expected

checkPrivateKeyPermissions

public static void checkPrivateKeyPermissions(String privateKeyFile)
                                       throws IOException

Checks whether a private key file has the 'right' permissions

Parameters:

privateKeyFile - the file to be checked

Throws:

IOException - if an error occurs checking file attributes

FilePermissionError - if the permissions are not correct

checkPKCS12Permissions

public static void checkPKCS12Permissions(String pkcs12File)
                                   throws IOException

Chekcs whether a pkcs12 file has the 'right' permissions

Parameters:

pkcs12File - the file to be checked

Throws:

IOException - if an error occurs checking file attributes

FilePermissionError - if the permissions are not correct

matchesFilePermissions

public static void matchesFilePermissions(String filename,
                          FilePermissionHelper.PosixFilePermission p)
                                   throws IOException

Checks that a given file has the appropriate unix permissions. This naive implementation just fetches the output of ls -al on a given file and matches the resulting string with the permissionString passed as argument. So the permissionString must be something like:

 -rw-------
 

Parameters:

filename - the filename to be checked

p - the permission string that must be matched

Throws:

IOException - if an error occurs checking file attributes

FilePermissionError - if file permissions are not as requested

setProxyPermissions

public static void setProxyPermissions(String filename)

setPKCS12Permissions

public static void setPKCS12Permissions(String filename)

setPrivateKeyPermissions

public static void setPrivateKeyPermissions(String filename)

setFilePermissions

public static void setFilePermissions(String filename,
                      FilePermissionHelper.PosixFilePermission perm)