001/*
002 * (C) Copyright 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 *     bjalon
016 */
017package org.nuxeo.ecm.mobile.handler;
018
019import java.util.Arrays;
020import java.util.List;
021import java.util.Map;
022
023import javax.servlet.http.HttpServletRequest;
024
025import org.apache.commons.logging.Log;
026import org.apache.commons.logging.LogFactory;
027
028/**
029 * @author <a href="mailto:bjalon@nuxeo.com">Benjamin JALON</a>
030 * @since 5.5
031 */
032public class MobileRequestHandler implements RequestHandler {
033
034    public static final String URL_SKIPPED_PATTERNS_PROP = "urlSkippedPatterns";
035
036    private static final Log log = LogFactory.getLog(MobileRequestHandler.class);
037
038    private static List<String> MOBILE_USER_AGENT_REGEXP = Arrays.asList("(.*)Mobile(.*)Safari(.*)",
039            "(.*)AppleWebKit(.*)Mobile(.*)", "(.*)Android(.*)");
040
041    private String[] urlPatterns;
042
043    @Override
044    public boolean isRequestRedirectedToApplication(HttpServletRequest request) {
045
046        // Some resources are skipped (nxfile pattern for instance, ...) but we
047        // want login page displayed for mobile
048        String queryString = request.getQueryString() != null ? "?" + request.getQueryString() : "";
049
050        String urlRequest = request.getRequestURL() + queryString;
051
052        if (urlPatterns != null) {
053            for (String urlPattern : urlPatterns) {
054                if (urlRequest.matches(urlPattern)) {
055                    if (log.isDebugEnabled()) {
056                        log.debug(String.format("Mobile Handler: URL redirection (%s) is skipped by configuration: %s",
057                                urlRequest, urlPattern));
058                    }
059                    return false;
060                }
061            }
062        }
063
064        return isRequestRedirectedToApplicationLoginForm(request);
065
066    }
067
068    @Override
069    public boolean isRequestRedirectedToApplicationLoginForm(HttpServletRequest request) {
070        String userAgent = request.getHeader("User-Agent");
071
072        if (userAgent == null) {
073            return false;
074        }
075
076        for (String pattern : MOBILE_USER_AGENT_REGEXP) {
077            if (userAgent.matches(pattern)) {
078                return true;
079            }
080        }
081
082        return false;
083    }
084
085    @Override
086    public RequestHandler init(Map<String, String> properties) {
087        String urlSkippedPatterns = properties.get(URL_SKIPPED_PATTERNS_PROP);
088
089        if (urlSkippedPatterns != null && !"".equals(urlSkippedPatterns)) {
090            urlPatterns = urlSkippedPatterns.split("[|]");
091        }
092
093        return this;
094    }
095
096}