001/*
002 * (C) Copyright 2006-2012 Nuxeo SA (http://nuxeo.com/) and others.
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-2.1.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 *     Thomas Roger <troger@nuxeo.com>
016 */
017
018package org.nuxeo.ecm.activity;
019
020import static org.nuxeo.ecm.user.center.profile.UserProfileConstants.USER_PROFILE_AVATAR_FIELD;
021
022import java.util.HashMap;
023import java.util.Map;
024import java.util.regex.Matcher;
025import java.util.regex.Pattern;
026
027import org.apache.commons.io.FilenameUtils;
028import org.apache.commons.lang.StringEscapeUtils;
029import org.nuxeo.ecm.core.api.Blob;
030import org.nuxeo.ecm.core.api.CoreSession;
031import org.nuxeo.ecm.core.api.DocumentLocation;
032import org.nuxeo.ecm.core.api.DocumentModel;
033import org.nuxeo.ecm.core.api.IdRef;
034import org.nuxeo.ecm.core.api.impl.DocumentLocationImpl;
035import org.nuxeo.ecm.core.io.download.DownloadService;
036import org.nuxeo.ecm.platform.ui.web.rest.api.URLPolicyService;
037import org.nuxeo.ecm.platform.url.DocumentViewImpl;
038import org.nuxeo.ecm.platform.url.api.DocumentView;
039import org.nuxeo.ecm.platform.web.common.vh.VirtualHostHelper;
040import org.nuxeo.ecm.user.center.profile.UserProfileService;
041import org.nuxeo.runtime.api.Framework;
042
043/**
044 * Helper class to compute links for {@link ActivityMessage} content from an activity attributes.
045 *
046 * @author <a href="mailto:troger@nuxeo.com">Thomas Roger</a>
047 * @since 5.6
048 */
049public class ActivityMessageHelper {
050
051    private ActivityMessageHelper() {
052        // helper class
053    }
054
055    public static String getDocumentLink(String documentActivityObject, String displayValue) {
056        documentActivityObject = StringEscapeUtils.escapeHtml(documentActivityObject);
057        displayValue = StringEscapeUtils.escapeHtml(displayValue);
058        String link = "<a href=\"%s\" target=\"_top\">%s</a>";
059        return String.format(
060                link,
061                getDocumentURL(ActivityHelper.getRepositoryName(documentActivityObject),
062                        ActivityHelper.getDocumentId(documentActivityObject)), displayValue);
063    }
064
065    public static String getDocumentURL(String repositoryName, String documentId) {
066        DocumentLocation docLoc = new DocumentLocationImpl(repositoryName, new IdRef(documentId));
067        DocumentView docView = new DocumentViewImpl(docLoc, "view_documents");
068        URLPolicyService urlPolicyService = Framework.getLocalService(URLPolicyService.class);
069        return urlPolicyService.getUrlFromDocumentView("id", docView, VirtualHostHelper.getContextPathProperty());
070    }
071
072    public static String getUserProfileLink(String userActivityObject, String displayValue) {
073        userActivityObject = StringEscapeUtils.escapeHtml(userActivityObject);
074        displayValue = StringEscapeUtils.escapeHtml(displayValue);
075        String link = "<span class=\"username\"><a href=\"%s\" target=\"_top\" title=\"%s\">%s</a></span>";
076        String username = ActivityHelper.getUsername(userActivityObject);
077        return String.format(link, getUserProfileURL(username), username, displayValue);
078    }
079
080    public static String getUserProfileURL(String username) {
081        Map<String, String> params = new HashMap<String, String>();
082        params.put("username", username);
083        DocumentView docView = new DocumentViewImpl(null, null, params);
084        URLPolicyService urlPolicyService = Framework.getLocalService(URLPolicyService.class);
085        return VirtualHostHelper.getContextPathProperty() + "/"
086                + urlPolicyService.getUrlFromDocumentView("user", docView, null);
087    }
088
089    public static String getUserAvatarURL(CoreSession session, String username) {
090        UserProfileService userProfileService = Framework.getLocalService(UserProfileService.class);
091        DocumentModel profile = userProfileService.getUserProfileDocument(username, session);
092        Blob avatar = (Blob) profile.getPropertyValue(USER_PROFILE_AVATAR_FIELD);
093        if (avatar != null) {
094            DownloadService downloadService = Framework.getService(DownloadService.class);
095            String filename = username + "." + FilenameUtils.getExtension(avatar.getFilename());
096            return VirtualHostHelper.getContextPathProperty() + "/"
097                    + downloadService.getDownloadUrl(profile, USER_PROFILE_AVATAR_FIELD, filename);
098        } else {
099            return VirtualHostHelper.getContextPathProperty() + "/icons/missing_avatar.png";
100        }
101    }
102
103    public static Pattern HTTP_URL_PATTERN = Pattern.compile("\\b(https?://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|])");
104
105    public static String replaceURLsByLinks(String message) {
106        String escapedMessage = StringEscapeUtils.escapeHtml(message);
107        Matcher m = HTTP_URL_PATTERN.matcher(escapedMessage);
108        StringBuffer sb = new StringBuffer(escapedMessage.length());
109        while (m.find()) {
110            String url = m.group(1);
111            m.appendReplacement(sb, computeLinkFor(url));
112        }
113        m.appendTail(sb);
114        return sb.toString();
115    }
116
117    private static String computeLinkFor(String url) {
118        return "<a href=\"" + url + "\" target=\"_top\">" + url + "</a>";
119    }
120
121}