001/* 002 * (C) Copyright 2006-2012 Nuxeo SA (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Nuxeo - initial API and implementation 016 * 017 */ 018 019package org.nuxeo.ecm.platform.web.common.exceptionhandling; 020 021import java.util.Arrays; 022import java.util.List; 023 024import javax.servlet.ServletException; 025 026import org.nuxeo.ecm.core.api.DocumentSecurityException; 027import org.nuxeo.ecm.core.io.download.DownloadHelper; 028 029public class ExceptionHelper { 030 031 private ExceptionHelper() { 032 } 033 034 public static Throwable unwrapException(Throwable t) { 035 Throwable cause = null; 036 if (t instanceof ServletException) { 037 cause = ((ServletException) t).getRootCause(); 038 } else if (t instanceof Exception) { 039 cause = t.getCause(); 040 } 041 042 if (cause == null) { 043 return t; 044 } else { 045 return unwrapException(cause); 046 } 047 } 048 049 public static List<String> possibleSecurityErrorMessages = Arrays.asList("java.lang.SecurityException", 050 DocumentSecurityException.class.getName(), SecurityException.class.getName()); 051 052 public static boolean isSecurityError(Throwable t) { 053 if (t == null) { 054 return false; 055 } else if (t instanceof DocumentSecurityException || t.getCause() instanceof DocumentSecurityException 056 || t.getCause() instanceof SecurityException) { 057 return true; 058 } else if (t.getMessage() != null) { 059 String message = t.getMessage(); 060 for (String errorMessage : possibleSecurityErrorMessages) { 061 if (message.contains(errorMessage)) { 062 return true; 063 } 064 } 065 } 066 return false; 067 } 068 069 /** 070 * @deprecated since 7.3, use {@link DownloadHelper#isClientAbortError} instead 071 */ 072 @Deprecated 073 public static boolean isClientAbortError(Throwable t) { 074 return DownloadHelper.isClientAbortError(t); 075 } 076 077 /** 078 * @deprecated since 7.3, use {@link DownloadHelper#logClientAbort} instead 079 */ 080 @Deprecated 081 public static void logClientAbort(Exception e) { 082 DownloadHelper.logClientAbort(e); 083 } 084 085}