org.mycore.common.log4j2.lookups.MCRUserInformationLookup Maven / Gradle / Ivy
/*
* This file is part of *** M y C o R e ***
* See http://www.mycore.de/ for details.
*
* MyCoRe is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* MyCoRe is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MyCoRe. If not, see .
*/
package org.mycore.common.log4j2.lookups;
import java.util.Optional;
import java.util.regex.Pattern;
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.config.plugins.Plugin;
import org.apache.logging.log4j.core.lookup.StrLookup;
import org.mycore.common.MCRSessionMgr;
/**
* Allows to access information on the current user. This lookup returns null
if key == null
* or {@link MCRSessionMgr#hasCurrentSession()} returns false
. key
may be either
*
* - id
*
-
*
- returns the current user id
* - role:{role1},{role2},...,{roleN}
-
*
- returns the first role the current user is in
-
*
*
* @author Thomas Scheffler (yagee)
*/
@Plugin(
name = "mcruser",
category = StrLookup.CATEGORY)
public class MCRUserInformationLookup implements StrLookup {
private static final Pattern ROLE_SEPARATOR = Pattern.compile(",");
private static final String ROLE_PREFIX = "role:";
@Override
public String lookup(String key) {
return getValue(key);
}
@Override
public String lookup(LogEvent event, String key) {
return lookup(key);
}
private static String getValue(String key) {
if (key == null || !MCRSessionMgr.hasCurrentSession()) {
return null;
}
if ("id".equals(key)) {
return MCRSessionMgr.getCurrentSession().getUserInformation().getUserID();
} else if (key.startsWith(ROLE_PREFIX)) {
Optional firstMatchingRole = ROLE_SEPARATOR
.splitAsStream(key.substring(ROLE_PREFIX.length()))
.filter(role -> MCRSessionMgr.getCurrentSession().getUserInformation().isUserInRole(role))
.findFirst();
if (firstMatchingRole.isPresent()) {
return firstMatchingRole.get();
}
}
return null;
}
}