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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.test.integration;
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import org.springframework.security.access.AccessDeniedException;
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/**
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* This utility class helps finding security related exceptions in Throwables
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*
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* Note: This class is more or less a clone of the same named class in cdmlib-persistence.
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* Any changes in either of these classes should be also done in the other class.
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* In future theses classes should be merged. But this requires a change in dependencies.
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*
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* @author a.kohlbecker
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* @since Feb 11, 2014
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*/
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public class SecurityExceptionUtils {
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//this is to decouple SecurityExceptionUtils from persistence and spring-security
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public static Class<?> permissionDeniedExceptionClass;
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public static Class<?> accessDeniedException;
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static {
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try {
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//PermissionDeniedException is not available here yet, therefore we use Class.forName
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permissionDeniedExceptionClass = Class.forName("eu.etaxonomy.cdm.database.PermissionDeniedException");
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} catch (ClassNotFoundException e) {
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throw new RuntimeException ("PermissionDeniedException class could not be found. Propably it moved to another folder", e);
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}
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try {
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accessDeniedException = Class.forName("org.springframework.security.access.AccessDeniedException");
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} catch (ClassNotFoundException e) {
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throw new RuntimeException ("PermissionDeniedException class could not be found. Propably it moved to another folder", e);
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}
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}
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/**
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* Finds a nested RuntimeExceptions of the types {@link PermissionDeniedException}, {@link AccessDeniedException}
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* or returns null.
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* @param exception
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* @return
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*/
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public static RuntimeException findSecurityRuntimeException(Throwable exception) {
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if( permissionDeniedExceptionClass.isInstance(exception) || accessDeniedException.isInstance(exception) ){
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return (RuntimeException) exception;
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} else if(exception != null ){
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return findSecurityRuntimeException(exception.getCause());
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}
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return null;
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}
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/**
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* Find in the nested <code>exception</code> the exception of type <code>clazz</code>
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* or returns <code>null</code> if no such exception is found.
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*
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* @param clazz
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* @param exception the nested <code>Throwable</code> to search in.
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* @return
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*/
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public static <T extends Throwable> T findThrowableOfTypeIn(Class<T> clazz, Throwable exception) {
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if( permissionDeniedExceptionClass.isInstance(exception) ){
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return (T)exception;
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} else if(exception != null ){
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return findThrowableOfTypeIn(clazz, exception.getCause());
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}
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return null;
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}
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}
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