+++ /dev/null
-/* Security.java --- Java base security class implmentation
- Copyright (C) 1999, 2001 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-package java.security;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.FileNotFoundException;
-import java.security.Provider;
-import java.util.Vector;
-import java.util.Enumeration;
-import java.util.Properties;
-
-/**
- Security class that loads the Providers and provides an
- interface to security properties.
-
- @author Mark Benvenuto <ivymccough@worldnet.att.net>
- */
-
-public final class Security extends Object
-{
- private static Vector providers = new Vector();
- private static Properties secprops;
-
- static
- {
- loadProviders(System.getProperty("java.vm.name"));
- loadProviders("classpath");
- }
-
- // This class can't be instantiated.
- private Security ()
- {
- }
-
- private static void loadProviders(String vendor)
- {
- if (vendor == null)
- return;
-
- String separator = System.getProperty("file.separator");
- String secfilestr = (System.getProperty("java.home") +
- separator + "lib" +
- separator + "security" +
- separator + vendor + ".security");
-
- try
- {
- FileInputStream fin = new FileInputStream(secfilestr);
- secprops = new Properties();
- secprops.load(fin);
-
- int i = 1;
- String name;
-
- while ((name = secprops.getProperty("security.provider." + i++)) !=
- null)
- {
- Exception exception = null;
-
- try
- {
- providers.addElement(Class.forName(name).newInstance());
- i++;
- }
- catch (ClassNotFoundException x)
- {
- exception = x;
- }
- catch (InstantiationException x)
- {
- exception = x;
- }
- catch (IllegalAccessException x)
- {
- exception = x;
- }
- if (exception != null)
- System.err.println ("Error loading security provider " + name
- + ": " + exception);
- }
- }
- catch (FileNotFoundException ignored)
- {
- // Actually we probibly shouldn't ignore these, once the security
- // properties file is actually installed somewhere.
- }
- catch (IOException ignored)
- {
- }
- }
-
- /**
- Gets a specific property for an algorithm. This is used to produce specialized
- algorithm parsers.
-
- @deprecated it used to a return the value of a propietary property
- for the "SUN" Cryptographic Service Provider to obtain
- algorithm-specific parameters. Used AlogorithmParameters and
- KeyFactory instead.
-
- @param algName name of algorithm to get property of
- @param propName name of property to check
-
- @return a string containing the value of the property
- */
- public static String getAlgorithmProperty(String algName, String propName)
- {
- /* TODO: Figure out what this actually does */
- return null;
- }
-
- /**
- Adds a new provider at the specified position. This allows dynamic loading
- of providers. It will check for duplication of providers.
-
- This class checks the security manager with the call checkSecurityAccess
- with "insertProvider."+provider.getName() to see if the user can add this
- provider.
-
- @param provider the provider to add
- @param position position to add the provider at
-
- @return the position the provider was added at, or -1 if a duplicate provider
- was found
-
- @throws SecurityException - if the security manager denies access to add a
- new provider
- */
- public static int insertProviderAt(Provider provider, int position)
- {
- SecurityManager sm = System.getSecurityManager();
- if (sm != null)
- sm.checkSecurityAccess("insertProvider." + provider.getName());
-
- int max = providers.size ();
- for (int i = 0; i < max; i++)
- {
- if (((Provider) providers.elementAt(i)).getName() ==
- provider.getName())
- return -1;
- }
-
- if (position < 0)
- position = 0;
- if (position > max)
- position = max;
-
- providers.insertElementAt(provider, position);
-
- return position;
- }
-
-
- /**
- Adds a new provider. This allows dynamic loading
- of providers. It will check for duplication of providers.
-
- This method checks the security manager with the call checkSecurityAccess
- with "insertProvider."+provider.getName() to see if the user can add this
- provider.
-
- @param provider the provider to add
-
- @return the position the provider was added at, or -1 if a duplicate provider
- was found
-
- @throws SecurityException - if the security manager denies access to add a
- new provider
- */
- public static int addProvider(Provider provider)
- {
- return insertProviderAt (provider, providers.size ());
- }
-
- /**
- Removes a provider. This allows dynamic unloading
- of providers. It will automatically shift up providers to a higher
- ranking. If the provider is not installed, it fails silently.
-
- This method checks the security manager with the call checkSecurityAccess
- with "removeProvider."+provider.getName() to see if the user can remove this
- provider.
-
- @param name name of the provider to add
-
- @throws SecurityException - if the security manager denies access to remove a
- new provider
- */
- public static void removeProvider(String name)
- {
- SecurityManager sm = System.getSecurityManager();
- if (sm != null)
- sm.checkSecurityAccess("removeProvider." + name);
-
- Provider p = null;
- int max = providers.size ();
- for (int i = 0; i < max; i++)
- {
- if (((Provider) providers.elementAt(i)).getName() == name)
- {
- providers.remove(i);
- break;
- }
- }
- }
-
- /**
- Returns array containing all the providers. It is in the preference order
- of the providers.
-
- @return an array of installed providers
- */
- public static Provider[] getProviders()
- {
- Provider array[] = new Provider[providers.size ()];
- providers.copyInto (array);
- return array;
- }
-
- /**
- Returns the provider with the specified name. It will return null
- if the provider cannot be found.
-
- @param name name of the requested provider
-
- @return requested provider
- */
- public static Provider getProvider(String name)
- {
- Provider p = null;
- int max = providers.size ();
- for (int i = 0; i < max; i++)
- {
- p = (Provider) providers.elementAt(i);
- if (p.getName() == name)
- break;
- }
- return p;
- }
-
- /**
- Gets the value of a security property.
-
- This method checks the security manager with the call checkSecurityAccess
- with "getProperty."+key to see if the user can get this property.
-
- @param key property to get
-
- @return value of the property
-
- @throws SecurityException - if the security manager denies access to
- getting a property
- */
- public static String getProperty(String key)
- {
- SecurityManager sm = System.getSecurityManager();
- if (sm != null)
- sm.checkSecurityAccess("getProperty." + key);
-
- return secprops.getProperty(key);
- }
-
-
- /**
- Sets the value of a security property.
-
- This method checks the security manager with the call checkSecurityAccess
- with "setProperty."+key to see if the user can get this property.
-
- @param key property to set
- @param datnum new value of property
-
- @throws SecurityException - if the security manager denies access to
- setting a property
- */
- public static void setProperty(String key, String datnum)
- {
- SecurityManager sm = System.getSecurityManager();
- if (sm != null)
- sm.checkSecurityAccess("setProperty." + key);
-
- secprops.put(key, datnum);
- }
-}
projects / msp430-gcc.git / blobdiff