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 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

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 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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package javax.security.auth;

/**

 * This class is for authentication permissions. An {@code AuthPermission}

 * contains a name (also referred to as a "target name") but no actions

 * list; you either have the named permission or you don't.

 *

 * <p> The target name is the name of a security configuration parameter

 * (see below).  Currently the {@code AuthPermission} object is used to

 * guard access to the {@link Subject},

 * {@link javax.security.auth.login.LoginContext}, and

 * {@link javax.security.auth.login.Configuration} objects.

 *

 * <p> The standard target names for an Authentication Permission are:

 *

 * <pre>

 *      doAs -                  allow the caller to invoke the

 *                              {@code Subject.doAs} methods.

 *

 *      doAsPrivileged -        allow the caller to invoke the

 *                              {@code Subject.doAsPrivileged} methods.

 *

 *      getSubject -            allow for the retrieval of the

 *                              Subject(s) associated with the

 *                              current Thread.

 *

 *      getSubjectFromDomainCombiner -  allow for the retrieval of the

 *                              Subject associated with the

 *                              a {@code SubjectDomainCombiner}.

 *

 *      setReadOnly -           allow the caller to set a Subject

 *                              to be read-only.

 *

 *      modifyPrincipals -      allow the caller to modify the {@code Set}

 *                              of Principals associated with a

 *                              {@code Subject}

 *

 *      modifyPublicCredentials - allow the caller to modify the

 *                              {@code Set} of public credentials

 *                              associated with a {@code Subject}

 *

 *      modifyPrivateCredentials - allow the caller to modify the

 *                              {@code Set} of private credentials

 *                              associated with a {@code Subject}

 *

 *      refreshCredential -     allow code to invoke the {@code refresh}

 *                              method on a credential which implements

 *                              the {@code Refreshable} interface.

 *

 *      destroyCredential -     allow code to invoke the {@code destroy}

 *                              method on a credential {@code object}

 *                              which implements the {@code Destroyable}

 *                              interface.

 *

 *      createLoginContext.{name} -  allow code to instantiate a

 *                              {@code LoginContext} with the

 *                              specified {@code name}.  {@code name}

 *                              is used as the index into the installed login

 *                              {@code Configuration}

 *                              (that returned by

 *                              {@code Configuration.getConfiguration()}).

 *                              <i>name</i> can be wildcarded (set to '*')

 *                              to allow for any name.

 *

 *      getLoginConfiguration - allow for the retrieval of the system-wide

 *                              login Configuration.

 *

 *      createLoginConfiguration.{type} - allow code to obtain a Configuration

 *                              object via

 *                              {@code Configuration.getInstance}.

 *

 *      setLoginConfiguration - allow for the setting of the system-wide

 *                              login Configuration.

 *

 *      refreshLoginConfiguration - allow for the refreshing of the system-wide

 *                              login Configuration.

 * </pre>

 *

 * <p>Please note that granting this permission with the "modifyPrincipals",

 * "modifyPublicCredentials" or "modifyPrivateCredentials" target allows

 * a JAAS login module to populate principal or credential objects into

 * the Subject. Although reading information inside the private credentials

 * set requires a {@link PrivateCredentialPermission} of the credential type to

 * be granted, reading information inside the principals set and the public

 * credentials set requires no additional permission. These objects can contain

 * potentially sensitive information. For example, login modules that read

 * local user information or perform a Kerberos login are able to add

 * potentially sensitive information such as user ids, groups and domain names

 * to the principals set.

 *

 * <p> The following target name has been deprecated in favor of

 * {@code createLoginContext.{name}}.

 *

 * <pre>

 *      createLoginContext -    allow code to instantiate a

 *                              {@code LoginContext}.

 * </pre>

 *

 * @implNote

 * Implementations may define additional target names, but should use naming

 * conventions such as reverse domain name notation to avoid name clashes.

 * @since 1.4

 */

public final class AuthPermission extends

java.security.BasicPermission {

    private static final long serialVersionUID = 5806031445061587174L;

    /**

     * Creates a new AuthPermission with the specified name.

     * The name is the symbolic name of the AuthPermission.

     *

     * @param name the name of the AuthPermission

     *

     * @throws NullPointerException if {@code name} is {@code null}.

     * @throws IllegalArgumentException if {@code name} is empty.

     */

    public AuthPermission(String name) {

        // for backwards compatibility --

        // createLoginContext is deprecated in favor of createLoginContext.*

        super("createLoginContext".equals(name) ?

                "createLoginContext.*" : name);

    }

    /**

     * Creates a new AuthPermission object with the specified name.

     * The name is the symbolic name of the AuthPermission, and the

     * actions String is currently unused and should be null.

     *

     * @param name the name of the AuthPermission

     *

     * @param actions should be null.

     *

     * @throws NullPointerException if {@code name} is {@code null}.

     * @throws IllegalArgumentException if {@code name} is empty.

     */

    public AuthPermission(String name, String actions) {

        // for backwards compatibility --

        // createLoginContext is deprecated in favor of createLoginContext.*

        super("createLoginContext".equals(name) ?

                "createLoginContext.*" : name, actions);

    }

}