| /* |
| * Copyright 2017 The Mifos Initiative. |
| * |
| * 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 |
| * |
| * http://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 io.mifos.anubis.security; |
| |
| import io.mifos.core.lang.ApplicationName; |
| import org.slf4j.Logger; |
| import org.springframework.security.access.AccessDecisionVoter; |
| import org.springframework.security.access.ConfigAttribute; |
| import org.springframework.security.core.Authentication; |
| import org.springframework.security.core.GrantedAuthority; |
| import org.springframework.security.web.FilterInvocation; |
| |
| import java.util.Collection; |
| import java.util.Optional; |
| |
| /** |
| * @author Myrle Krantz |
| */ |
| public class UrlPermissionChecker implements AccessDecisionVoter<FilterInvocation> { |
| private final Logger logger; |
| private final ApplicationName applicationName; |
| |
| public UrlPermissionChecker(final Logger logger, final ApplicationName applicationName) { |
| this.logger = logger; |
| this.applicationName = applicationName; |
| } |
| |
| @Override public boolean supports(final ConfigAttribute attribute) { |
| return attribute.getAttribute().equals(ApplicationPermission.URL_AUTHORITY); |
| } |
| |
| @Override public boolean supports(final Class<?> clazz) { |
| return FilterInvocation.class.isAssignableFrom(clazz); |
| } |
| |
| @Override public int vote( |
| final Authentication unAuthentication, |
| final FilterInvocation filterInvocation, |
| final Collection<ConfigAttribute> attributes) { |
| if (!AnubisAuthentication.class.isAssignableFrom(unAuthentication.getClass())) |
| return ACCESS_ABSTAIN; |
| |
| if (filterInvocation == null) |
| return ACCESS_ABSTAIN; |
| |
| final AnubisAuthentication authentication = (AnubisAuthentication) unAuthentication; |
| |
| final Collection<? extends GrantedAuthority> authorities = authentication.getAuthorities(); |
| final Optional<ApplicationPermission> matchedPermission = authorities.stream() |
| .map(x -> (ApplicationPermission) x) |
| .filter(x -> x.matches(filterInvocation, applicationName, authentication.getPrincipal())) |
| .findAny(); |
| |
| matchedPermission.ifPresent(x -> logger.debug("Authorizing access to {} based on permission: {}" |
| , filterInvocation.getRequestUrl(), x)); |
| |
| return matchedPermission.map(x -> ACCESS_GRANTED).orElse(ACCESS_DENIED); |
| } |
| } |