javax.servlet.annotation.HttpConstraint Maven / Gradle / Ivy
/*
* Copyright (c) 2017, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package javax.servlet.annotation;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import javax.servlet.annotation.ServletSecurity.EmptyRoleSemantic;
import javax.servlet.annotation.ServletSecurity.TransportGuarantee;
/**
* This annotation is used within the {@link ServletSecurity} annotation to
* represent the security constraints to be applied to all HTTP protocol
* methods for which a corresponding {@link HttpMethodConstraint} element does
* NOT occur within the {@link ServletSecurity} annotation.
*
* For the special case where an @HttpConstraint that returns
* all default values occurs in combination with at least one
* {@link HttpMethodConstraint} that returns other than all default values, the
* @HttpConstraint represents that no security constraint is to be
* applied to any of the HTTP protocol methods to which a security constraint
* would otherwise apply. This exception is made to ensure that such
* potentially non-specific uses of @HttpConstraint do not yield
* constraints that will explicitly establish unprotected access for such
* methods; given that they would not otherwise be covered by a constraint.
*
* @since Servlet 3.0
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
public @interface HttpConstraint {
/**
* The default authorization semantic.
* This value is insignificant when rolesAllowed returns a
* non-empty array, and should not be specified when a non-empty
* array is specified for rolesAllowed.
*
* @return the {@link EmptyRoleSemantic} to be applied when
* rolesAllowed returns an empty (that is, zero-length) array.
*/
EmptyRoleSemantic value() default EmptyRoleSemantic.PERMIT;
/**
* The data protection requirements (i.e., whether or not SSL/TLS is
* required) that must be satisfied by the connections on which requests
* arrive.
*
* @return the {@link TransportGuarantee}
* indicating the data protection that must be provided by the connection.
*/
TransportGuarantee transportGuarantee() default TransportGuarantee.NONE;
/**
* The names of the authorized roles.
*
* Duplicate role names appearing in rolesAllowed are insignificant and
* may be discarded during runtime processing of the annotation. The String
* "*" has no special meaning as a role name (should it occur in
* rolesAllowed).
*
* @return an array of zero or more role names. When the array contains
* zero elements, its meaning depends on the EmptyRoleSemantic
* returned by the value method. If value returns
* DENY, and rolesAllowed returns a zero length array,
* access is to be denied independent of authentication state and identity.
* Conversely, if value returns PERMIT, it
* indicates that access is to be allowed independent of authentication
* state and identity. When the array contains the names of one or more
* roles, it indicates that access is contingent on membership in at
* least one of the named roles (independent of the
* EmptyRoleSemantic returned by the value method).
*/
String[] rolesAllowed() default {};
}