Examples of java.util.PropertyPermission

java.util.PropertyPermission
This class is for property permissions.
The name is the name of the property ("java.home", "os.name", etc). The naming convention follows the hierarchical property naming convention. Also, an asterisk may appear at the end of the name, following a ".", or by itself, to signify a wildcard match. For example: "java.*" or "*" is valid, "*java" or "a*b" is not valid.

The actions to be granted are passed to the constructor in a string containing a list of zero or more comma-separated keywords. The possible keywords are "read" and "write". Their meaning is defined as follows:

read
read permission. Allows System.getProperty to be called.
write
write permission. Allows System.setProperty to be called.

The actions string is converted to lowercase before processing.
Care should be taken before granting code permission to access certain system properties. For example, granting permission to access the "java.home" system property gives potentially malevolent code sensitive information about the system environment (the Java installation directory). Also, granting permission to access the "user.name" and "user.home" system properties gives potentially malevolent code sensitive information about the user environment (the user's account name and home directory). @see java.security.BasicPermission @see java.security.Permission @see java.security.Permissions @see java.security.PermissionCollection @see java.lang.SecurityManager @version 1.35 06/04/21 @author Roland Schemers @since 1.2 @serial exclude

        AccessController.doPrivileged(new PrivilegedAction<Void>() {
            public Void run() {
                PolicyEntry pe = new PolicyEntry(new CodeSource(null,
                    (Certificate[]) null));
                pe.add(SecurityConstants.LOCAL_LISTEN_PERMISSION);
                pe.add(new PropertyPermission("java.version",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("java.vendor",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("java.vendor.url",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("java.class.version",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("os.name",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("os.version",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("os.arch",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("file.separator",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("path.separator",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("line.separator",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission
                                ("java.specification.version",
                                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission
                                ("java.specification.vendor",
                                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission
                                ("java.specification.name",
                                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission
                                ("java.vm.specification.version",
                                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission
                                ("java.vm.specification.vendor",
                                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission
                                ("java.vm.specification.name",
                                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("java.vm.version",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("java.vm.vendor",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("java.vm.name",
                    SecurityConstants.PROPERTY_READ_ACTION));


                // No need to sync because noone has access to newInfo yet
                newInfo.policyEntries.add(pe);

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        } else if (claz.equals(SocketPermission.class)) {
            return new SocketPermission(name, actions);
        } else if (claz.equals(RuntimePermission.class)) {
            return new RuntimePermission(name, actions);
        } else if (claz.equals(PropertyPermission.class)) {
            return new PropertyPermission(name, actions);
        } else if (claz.equals(NetPermission.class)) {
            return new NetPermission(name, actions);
        } else if (claz.equals(AllPermission.class)) {
            return SecurityConstants.ALL_PERMISSION;
        } else if (claz.equals(AWTPermission.class)) {

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        AccessController.doPrivileged(new PrivilegedAction<Void>() {
            public Void run() {
                PolicyEntry pe = new PolicyEntry(new CodeSource(null,
                    (Certificate[]) null));
                pe.add(SecurityConstants.LOCAL_LISTEN_PERMISSION);
                pe.add(new PropertyPermission("java.version",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("java.vendor",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("java.vendor.url",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("java.class.version",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("os.name",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("os.version",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("os.arch",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("file.separator",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("path.separator",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("line.separator",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission
                                ("java.specification.version",
                                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission
                                ("java.specification.vendor",
                                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission
                                ("java.specification.name",
                                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission
                                ("java.vm.specification.version",
                                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission
                                ("java.vm.specification.vendor",
                                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission
                                ("java.vm.specification.name",
                                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("java.vm.version",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("java.vm.vendor",
                    SecurityConstants.PROPERTY_READ_ACTION));
                pe.add(new PropertyPermission("java.vm.name",
                    SecurityConstants.PROPERTY_READ_ACTION));


                // No need to sync because noone has access to newInfo yet
                newInfo.policyEntries.add(pe);

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        } else if (claz.equals(SocketPermission.class)) {
            return new SocketPermission(name, actions);
        } else if (claz.equals(RuntimePermission.class)) {
            return new RuntimePermission(name, actions);
        } else if (claz.equals(PropertyPermission.class)) {
            return new PropertyPermission(name, actions);
        } else if (claz.equals(NetPermission.class)) {
            return new NetPermission(name, actions);
        } else if (claz.equals(AllPermission.class)) {
            return SecurityConstants.ALL_PERMISSION;
        } else if (claz.equals(AWTPermission.class)) {

View Full Code Here

        System.out.println("Passed. OKAY");
    }


    static void tryPropPC() throws Exception {
        try {
            PropertyPermission p0 = new PropertyPermission("user.home","read");
            PermissionCollection pc = p0.newPermissionCollection();
            pc.setReadOnly();   // this should lock out future adds
            //
            PropertyPermission p1 = new PropertyPermission("java.home","read");
            pc.add(p1);
            throw new
                Exception("Failed...PropertyPermission added to readonly PropertyPermissionCollection.");


        } catch (SecurityException se) {

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        int count = 0;


        try {


            try {
                PropertyPermission pp = new PropertyPermission(null, "read");
            } catch (NullPointerException e) {
                count++;
            }


            try {

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     * @com.intel.drl.spec_ref
     */
    public static String clearProperty(String key){
        SecurityManager sm = securityManager;
        if (sm != null) {
            sm.checkPermission(new PropertyPermission(key, "write"));
        } else if (key.length() == 0) {
            throw new IllegalArgumentException("key is empty");
        }
        Properties props = getPropertiesUnsecure();
        return (String)props.remove(key);

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        if (key.length() == 0) {
            throw new IllegalArgumentException("key is empty");
        }
        SecurityManager sm = securityManager;
        if (sm != null) {
            sm.checkPermission(new PropertyPermission(key, "write"));
        }
        Properties props = getPropertiesUnsecure();
        return (String)props.setProperty(key, value);
    }

View Full Code Here

     * @com.intel.drl.spec_ref
     */
    public static String clearProperty(String key){
        SecurityManager sm = securityManager;
        if (sm != null) {
            sm.checkPermission(new PropertyPermission(key, "write"));
        } else if (key.length() == 0) {
            throw new IllegalArgumentException("key is empty");
        }
        Properties props = getPropertiesUnsecure();
        return (String)props.remove(key);

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        if (key.length() == 0) {
            throw new IllegalArgumentException("key is empty");
        }
        SecurityManager sm = securityManager;
        if (sm != null) {
            sm.checkPermission(new PropertyPermission(key, "write"));
        }
        Properties props = getPropertiesUnsecure();
        return (String)props.setProperty(key, value);
    }

View Full Code Here

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