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//
// YaCyLoginService
// Copyright 2011 by Florian Richter
// First released 16.04.2011 at http://yacy.net
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program in the file lgpl21.txt
// If not, see <http://www.gnu.org/licenses/>.
//
package net.yacy.http;
import java.util.ArrayList;
import net.yacy.data.UserDB.AccessRight;
import net.yacy.data.UserDB.Entry;
import net.yacy.search.Switchboard;
import net.yacy.search.SwitchboardConstants;
import org.eclipse.jetty.security.AbstractLoginService;
import org.eclipse.jetty.security.HashLoginService;
import org.eclipse.jetty.security.LoginService;
import org.eclipse.jetty.security.UserStore;
import org.eclipse.jetty.server.UserIdentity;
import org.eclipse.jetty.util.security.Credential;
/**
* jetty login service, provides admin and YaCy.UserDB users with role
* assignment with DIGEST auth by default Jetty uses the name of the loginSevice
* as realmname (which is part of all password hashes)
*/
public class YaCyLoginService extends HashLoginService implements LoginService {
private UserStore _userStore; // user cache for known/authenticated users
/**
* Initialize a user cache
* @throws Exception
*/
@Override
protected void doStart() throws Exception {
_userStore = new UserStore();
this.setUserStore(_userStore);
super.doStart();
}
/**
* Free space used by user cache
* @throws Exception
*/
@Override
protected void doStop() throws Exception {
super.doStop();
if (_userStore != null) {
_userStore.stop();
_userStore = null;
}
}
/**
* Load the user from cache (of authenticated users) or from the YaCy user db
* @param username
* @return known user or null
*/
@Override
protected AbstractLoginService.UserPrincipal loadUserInfo(String username) {
if (username == null || username.isEmpty()) {
return null; // quick exit
}
AbstractLoginService.UserPrincipal theUser = super.loadUserInfo(username); // load from cache (the internal _userStore)
if (theUser == null) {
final Switchboard sb = Switchboard.getSwitchboard();
String adminuser = sb.getConfig(SwitchboardConstants.ADMIN_ACCOUNT_USER_NAME, "admin");
Credential credential = null;
String[] roles = null;
if (username.equals(adminuser)) {
final String adminAccountBase64MD5 = sb.getConfig(SwitchboardConstants.ADMIN_ACCOUNT_B64MD5, "");
// in YaCy the credential hash is composed of username:pwd so the username is needed to create valid credential
// not just the password (as usually in Jetty). As the accountname for the std. adminuser is not stored a useridentity
// is created for current user (and the pwd checked against the stored username:pwd setting)
credential = YaCyLegacyCredential.getCredentialForAdmin(username, adminAccountBase64MD5);
// TODO: YaCy user:pwd hashes should longterm likely be switched to separable username + pwd-hash entries
// and/or the standard admin account username should be fix = "admin"
roles = new String[]{AccessRight.ADMIN_RIGHT.toString()};
} else {
Entry user = sb.userDB.getEntry(username);
if (user != null && user.getMD5EncodedUserPwd() != null) {
// assigning roles from userDB
ArrayList<String> roletmp = new ArrayList<String>();
for (final AccessRight right : AccessRight.values()) {
if (user.hasRight(right)) {
roletmp.add(right.toString());
}
}
if (roletmp.size() > 0) {
roles = roletmp.toArray(new String[roletmp.size()]);
}
credential = YaCyLegacyCredential.getCredentialForUserDB(username, user.getMD5EncodedUserPwd());
}
}
if (credential != null) { // if credential exist, user is known, create or get info
theUser = new AbstractLoginService.UserPrincipal(username, credential);
_userStore.addUser(username, credential, roles); // add to jetty user cache
_userStore.getUserIdentity(username).getUserPrincipal();
theUser.authenticate(credential);
}
}
return theUser;
}
/**
* Delete a user from the internal cache. If user found in cache user is
* loged out before delete.
* @param username
* @return true if user deleted, if not found in user cache false
*/
public boolean removeUser(String username) {
UserIdentity uid = _userStore.getUserIdentity(username);
if (uid != null) {
logout(uid);
_userStore.removeUser(username);
return true;
}
return false;
}
}
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