/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.
*/
package org.olat.commons.rss;
import org.apache.commons.lang.RandomStringUtils;
import org.olat.basesecurity.Authentication;
import org.olat.basesecurity.BaseSecurity;
import org.olat.basesecurity.BaseSecurityManager;
import org.olat.core.gui.UserRequest;
import org.olat.core.helpers.Settings;
import org.olat.core.id.Identity;
/**
* Description:<BR>
* Constants and helper methods for the OLAT RSS feeds
*
* <P>
* Initial Date: Jan 12, 2005
*
* @author gnaegi
*/
public class RSSUtil {
/** Authentication provider name for RSS authentication **/
public static final String RSS_AUTH_PROVIDER = "RSS-OLAT";
/** Key under which the users rss token is beeing kept in the http session **/
public static final String RSS_AUTH_TOKEN_KEY = "rsstoken";
/** path prefix for personal rss feed **/
public static final String RSS_PREFIX_PERSONAL = "/personal/";
/** OLAT server URI **/
public static final String URI_SERVER;
/** Personal rss channel URI prefix **/
public static final String URI_PERSONAL_CHANNEL;
static {
URI_SERVER = Settings.getServerContextPathURI() + "/";
URI_PERSONAL_CHANNEL = URI_SERVER + "rss" + RSS_PREFIX_PERSONAL;
}
/**
* Calculates the absolute URL to the users personal rss feed
* @param ureq
* @return String
*/
public static String getPersonalRssLink(UserRequest ureq) {
String token = null;
Identity identity = ureq.getIdentity();
BaseSecurity secManager = BaseSecurityManager.getInstance();
Authentication auth = secManager.findAuthentication(identity, RSS_AUTH_PROVIDER);
if (auth == null) {
// no token found - create one
token = RandomStringUtils.randomAlphanumeric(6);
auth = secManager.createAndPersistAuthentication(identity, RSS_AUTH_PROVIDER, identity.getName(), token, null);
} else {
token = auth.getCredential();
}
StringBuilder sb = new StringBuilder();
return sb.append(RSSUtil.URI_PERSONAL_CHANNEL).append(ureq.getIdentity().getName())
.append("/").append(token).append("/olat.rss").toString();
}
}