| java.lang.Object
 java.security.Permission
java.net.SocketPermission
| SocketPermission | | final public class SocketPermission extends Permission implements Serializable(Code) | | SocketPermissions represent permission to access resources via sockets. The
name of the permission should be either the (possibly wildcarded (eg.
.company.com)) DNS style name of the of the host for which access is being
requested, or its IP address in standard nn.nn.nn.nn ("dot") notation. The
action list can be made up of any of the following:
- connect
- requests permission to connect to the host
- listen
- requests permission to listen for connections from the host
- accept
- requests permission to accept connections from the host
- resolve
- requests permission to resolve the host name
Note that "resolve" is implied when any (or none) of the others are present.
Access to a particular port can be requested by appending a colon and a
single digit to the name (eg. "*.company.com:7000"). A range of port numbers
can also be specified, by appending a pattern of the form - where
and are valid port numbers. If either or is omitted
it is equivalent to entering the lowest or highest possible value
respectively. For example:
SocketPermission("www.company.com:7000-", "connect", "accept")
represents permission to connect to and accept connections from
www.company.com on ports in the range 7000 to 65535.
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| Method Summary | |
| boolean | checkHost(SocketPermission sp)
| | public boolean | equals(Object o)
Compares the argument to the receiver, and answers true if they represent
the equal objects using a class specific comparison. | | public String | getActions()
Answers the canonical action list of this SocketPermission in the order:
connect, listen, accept, resolve. | | public int | hashCode()
Answers an integer hash code for the receiver. | | public boolean | implies(Permission p)
Check the permission to see if the actions requested by the argument
permission are permissable. | | public PermissionCollection | newPermissionCollection()
Answers a PermissionCollection for storing SocketPermission objects. |
| SP_ACCEPT | | final static int SP_ACCEPT(Code) | | |
| SP_CONNECT | | final static int SP_CONNECT(Code) | | |
| SP_LISTEN | | final static int SP_LISTEN(Code) | | |
| SP_RESOLVE | | final static int SP_RESOLVE(Code) | | |
| actionsMask | | transient int actionsMask(Code) | | |
| portMax | | transient int portMax(Code) | | |
| portMin | | transient int portMin(Code) | | |
| resolved | | transient boolean resolved(Code) | | |
| SocketPermission | | public SocketPermission(String host, String action)(Code) | | Constructs an instance of this class. The host name can be a DNS name, an
individual hostname, an ip address or the empty string which implies
localhost. The port or port range is optional.
The action list is a comma-seperated list which can consist of "connect",
"listen", "accept", and "resolve". They are case-insensitive and can be
put together in any order. "resolve" is always implied.
Parameters:
host - java.lang.String the host name
Parameters:
action - java.lang.String the action string |
| equals | | public boolean equals(Object o)(Code) | | Compares the argument to the receiver, and answers true if they represent
the equal objects using a class specific comparison.
Parameters:
o - the object to compare with this object true if the object is the same as this objectfalse if it is different from this object
See Also: SocketPermission.hashCode |
| getActions | | public String getActions()(Code) | | Answers the canonical action list of this SocketPermission in the order:
connect, listen, accept, resolve.
java.lang.String the canonical action list |
| hashCode | | public int hashCode()(Code) | | Answers an integer hash code for the receiver. Any two objects which
answer true when passed to .equals must
answer the same value for this method.
int the receiver's hash.
See Also: SocketPermission.equals |
| implies | | public boolean implies(Permission p)(Code) | | Check the permission to see if the actions requested by the argument
permission are permissable. All argument permission actions, host and
port must be implied by this permission in order to return true. This
permission may imply additional actions etc. not present in the argument
permission.
boolean true if this permission implies p, andfalse otherwise
Parameters:
p - java.security.Permission the other socket permission |
| newPermissionCollection | | public PermissionCollection newPermissionCollection()(Code) | | Answers a PermissionCollection for storing SocketPermission objects.
java.security.PermissionCollection a permission collection |
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