org.springframework.security.web.access.RequestMatcherDelegatingWebInvocationPrivilegeEvaluator Maven / Gradle / Ivy
/*
* Copyright 2002-2022 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.security.web.access;
import java.util.Collections;
import java.util.List;
import jakarta.servlet.ServletContext;
import jakarta.servlet.http.HttpServletRequest;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.FilterInvocation;
import org.springframework.security.web.util.matcher.RequestMatcherEntry;
import org.springframework.util.Assert;
import org.springframework.web.context.ServletContextAware;
/**
* A {@link WebInvocationPrivilegeEvaluator} which delegates to a list of
* {@link WebInvocationPrivilegeEvaluator} based on a
* {@link org.springframework.security.web.util.matcher.RequestMatcher} evaluation
*
* @author Marcus Da Coregio
* @since 5.5.5
*/
public final class RequestMatcherDelegatingWebInvocationPrivilegeEvaluator
implements WebInvocationPrivilegeEvaluator, ServletContextAware {
private final List>> delegates;
private ServletContext servletContext;
public RequestMatcherDelegatingWebInvocationPrivilegeEvaluator(
List>> requestMatcherPrivilegeEvaluatorsEntries) {
Assert.notNull(requestMatcherPrivilegeEvaluatorsEntries, "requestMatcherPrivilegeEvaluators cannot be null");
for (RequestMatcherEntry> entry : requestMatcherPrivilegeEvaluatorsEntries) {
Assert.notNull(entry.getRequestMatcher(), "requestMatcher cannot be null");
Assert.notNull(entry.getEntry(), "webInvocationPrivilegeEvaluators cannot be null");
}
this.delegates = requestMatcherPrivilegeEvaluatorsEntries;
}
/**
* Determines whether the user represented by the supplied Authentication
* object is allowed to invoke the supplied URI.
*
* Uses the provided URI in the
* {@link org.springframework.security.web.util.matcher.RequestMatcher#matches(HttpServletRequest)}
* for every {@code RequestMatcher} configured. If no {@code RequestMatcher} is
* matched, or if there is not an available {@code WebInvocationPrivilegeEvaluator},
* returns {@code true}.
* @param uri the URI excluding the context path (a default context path setting will
* be used)
* @return true if access is allowed, false if denied
*/
@Override
public boolean isAllowed(String uri, Authentication authentication) {
List privilegeEvaluators = getDelegate(null, uri, null);
if (privilegeEvaluators.isEmpty()) {
return true;
}
for (WebInvocationPrivilegeEvaluator evaluator : privilegeEvaluators) {
boolean isAllowed = evaluator.isAllowed(uri, authentication);
if (!isAllowed) {
return false;
}
}
return true;
}
/**
* Determines whether the user represented by the supplied Authentication
* object is allowed to invoke the supplied URI.
*
* Uses the provided URI in the
* {@link org.springframework.security.web.util.matcher.RequestMatcher#matches(HttpServletRequest)}
* for every {@code RequestMatcher} configured. If no {@code RequestMatcher} is
* matched, or if there is not an available {@code WebInvocationPrivilegeEvaluator},
* returns {@code true}.
* @param uri the URI excluding the context path (a default context path setting will
* be used)
* @param contextPath the context path (may be null, in which case a default value
* will be used).
* @param method the HTTP method (or null, for any method)
* @param authentication the Authentication instance whose authorities should
* be used in evaluation whether access should be granted.
* @return true if access is allowed, false if denied
*/
@Override
public boolean isAllowed(String contextPath, String uri, String method, Authentication authentication) {
List privilegeEvaluators = getDelegate(contextPath, uri, method);
if (privilegeEvaluators.isEmpty()) {
return true;
}
for (WebInvocationPrivilegeEvaluator evaluator : privilegeEvaluators) {
boolean isAllowed = evaluator.isAllowed(contextPath, uri, method, authentication);
if (!isAllowed) {
return false;
}
}
return true;
}
private List getDelegate(String contextPath, String uri, String method) {
FilterInvocation filterInvocation = new FilterInvocation(contextPath, uri, method, this.servletContext);
for (RequestMatcherEntry> delegate : this.delegates) {
if (delegate.getRequestMatcher().matches(filterInvocation.getHttpRequest())) {
return delegate.getEntry();
}
}
return Collections.emptyList();
}
@Override
public void setServletContext(ServletContext servletContext) {
this.servletContext = servletContext;
}
}