ewe.security
Class mSecurityManager

java.lang.Object
  java.lang.SecurityManager
      ewe.security.mSecurityManager

public abstract class mSecurityManager

extends SecurityManager

Field Summary

Fields inherited from class java.lang.SecurityManager

inCheck

Constructor Summary

mSecurityManager()

Method Summary

void	checkAccess(Thread t) Check if the current thread is allowed to modify another Thread.
void	checkAccess(ThreadGroup tg) Check if the current thread is allowed to modify a ThreadGroup.
mThreadGroup	checkAssignMThreadGroup(mThreadGroup group)
void	checkCreateClassLoader() Check if the current thread is allowed to create a ClassLoader.
void	checkCreateSecurityManager(SecurityManager obj)
void	checkDelete(String filename) Check if the current thread is allowed to delete the given file.
abstract void	checkLocalFileAccess()
void	checkPassAuthority(ClassLoader from, ClassLoader to)
void	checkRead(String filename, Object context) Check if the current thread is allowed to read the given file.
protected Class	findFirstInstanceof(Class aClass)
PropertyList	getAuthorizers(ClassLoader loader, boolean forWriting)

Methods inherited from class java.lang.SecurityManager

checkAccept, checkConnect, checkConnect, checkExec, checkExit, checkLink, checkListen, checkMemberAccess, checkPackageAccess, checkPackageDefinition, checkPrintJobAccess, checkPropertiesAccess, checkPropertyAccess, checkRead, checkSecurityAccess, checkSetFactory, checkSystemClipboardAccess, checkTopLevelWindow, checkWrite, classDepth, classLoaderDepth, currentClassLoader, currentLoadedClass, getClassContext, getInCheck, getSecurityContext, inClass, inClassLoader

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, toString

Constructor Detail

mSecurityManager

public mSecurityManager()

Method Detail

checkLocalFileAccess

public abstract void checkLocalFileAccess()

getAuthorizers

public PropertyList getAuthorizers(ClassLoader loader,
                                   boolean forWriting)

findFirstInstanceof

protected Class findFirstInstanceof(Class aClass)

checkCreateClassLoader

public void checkCreateClassLoader()

Description copied from class: SecurityManager

Check if the current thread is allowed to create a ClassLoader. This method is called from ClassLoader.ClassLoader(), and checks RuntimePermission("createClassLoader"). If you override this, you should call super.checkCreateClassLoader() rather than throwing an exception.

Overrides:

checkCreateClassLoader in class SecurityManager

See Also:

ClassLoader.ClassLoader()

checkPassAuthority

public final void checkPassAuthority(ClassLoader from,
                                     ClassLoader to)

checkCreateSecurityManager

public void checkCreateSecurityManager(SecurityManager obj)

checkAssignMThreadGroup

public mThreadGroup checkAssignMThreadGroup(mThreadGroup group)

checkAccess

public final void checkAccess(Thread t)

Description copied from class: SecurityManager

Check if the current thread is allowed to modify another Thread. This is called by Thread.stop(), suspend(), resume(), interrupt(), destroy(), setPriority(), setName(), and setDaemon(). The default implementation checks RuntimePermission("modifyThread") on system threads (ie. threads in ThreadGroup with a null parent), and returns silently on other threads.

If you override this, you must do two things. First, call super.checkAccess(t), to make sure you are not relaxing requirements. Second, if the calling thread has RuntimePermission("modifyThread"), return silently, so that core classes (the Classpath library!) can modify any thread.

Overrides:

checkAccess in class SecurityManager

Parameters:

t - the other Thread to check

See Also:

Thread#stop(), Thread#suspend(), Thread#resume(), Thread#setPriority(int), Thread#setName(String), Thread#setDaemon(boolean)

checkAccess

public final void checkAccess(ThreadGroup tg)

Description copied from class: SecurityManager

Check if the current thread is allowed to modify a ThreadGroup. This is called by Thread.Thread() (to add a thread to the ThreadGroup), ThreadGroup.ThreadGroup() (to add this ThreadGroup to a parent), ThreadGroup.stop(), suspend(), resume(), interrupt(), destroy(), setDaemon(), and setMaxPriority(). The default implementation checks RuntimePermission("modifyThread") on the system group (ie. the one with a null parent), and returns silently on other groups.

If you override this, you must do two things. First, call super.checkAccess(t), to make sure you are not relaxing requirements. Second, if the calling thread has RuntimePermission("modifyThreadGroup"), return silently, so that core classes (the Classpath library!) can modify any thread.

Overrides:

checkAccess in class SecurityManager

Parameters:

tg - the ThreadGroup to check

See Also:

Thread#Thread(), ThreadGroup#ThreadGroup(), ThreadGroup#stop(), ThreadGroup#suspend(), ThreadGroup#resume(), ThreadGroup#interrupt(), ThreadGroup#setDaemon(boolean), ThreadGroup#setMaxPriority(int)

checkRead

public void checkRead(String filename,
                      Object context)

Description copied from class: SecurityManager

Check if the current thread is allowed to read the given file. using the given security context. The context must be a result of a previous call to getSecurityContext(). The default implementation checks AccessControlContext.checkPermission(new FilePermission(filename, "read")). If you override this, call super.checkRead rather than throwing an exception.

Overrides:

checkRead in class SecurityManager

Parameters:

filename - the full name of the file to access

context - the context to determine access for

See Also:

SecurityManager.getSecurityContext(), AccessControlContext#checkPermission(Permission)

checkDelete

public void checkDelete(String filename)

Description copied from class: SecurityManager

Check if the current thread is allowed to delete the given file. This method is called from File.delete(). The default implementation checks FilePermission(filename, "delete"). If you override this, call super.checkDelete rather than throwing an exception.

Overrides:

checkDelete in class SecurityManager

Parameters:

filename - the full name of the file to delete

See Also:

File#delete()