package org.drools.guvnor.server.security;
/*
* Copyright 2005 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.io.IOException;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import javax.security.auth.login.LoginException;
import org.apache.log4j.Logger;
import org.drools.guvnor.client.rpc.SecurityService;
import org.drools.guvnor.client.rpc.UserSecurityContext;
import org.drools.guvnor.client.security.Capabilities;
import org.drools.core.util.DateUtils;
import org.jboss.seam.Component;
import org.jboss.seam.contexts.Contexts;
import org.jboss.seam.security.AuthorizationException;
import org.jboss.seam.security.Identity;
import org.jboss.seam.security.permission.RoleBasedPermissionResolver;
/**
* This implements security related services.
* @author Michael Neale
*/
public class SecurityServiceImpl
implements
SecurityService {
public static final String GUEST_LOGIN = "guest";
private static final Logger log = Logger.getLogger( SecurityServiceImpl.class );
static final Map<String, String> PREFERENCES = loadPrefs();
public boolean login(String userName,
String password) {
if ( userName == null || userName.trim().equals( "" ) ) {
userName = "admin";
}
log.info( "Logging in user [" + userName + "]" );
if ( Contexts.isApplicationContextActive() ) {
// Check for banned characters in user name
// These will cause the session to jam if you let them go further
char[] bannedChars = {'\'', '*', '[', ']'};
for ( int i = 0; i < bannedChars.length; i++ ) {
char c = bannedChars[i];
if ( userName.indexOf( c ) >= 0 ) {
log.error( "Not a valid name character " + c );
return false;
}
}
Identity.instance().getCredentials().setUsername( userName );
Identity.instance().getCredentials().setPassword( password );
try {
Identity.instance().authenticate();
} catch ( LoginException e ) {
log.error( e );
return false;
}
return Identity.instance().isLoggedIn();
} else {
return true;
}
}
public UserSecurityContext getCurrentUser() {
if ( Contexts.isApplicationContextActive() ) {
if ( !Identity.instance().isLoggedIn() ) {
//check to see if we can autologin
return new UserSecurityContext( checkAutoLogin() );
}
return new UserSecurityContext( Identity.instance().getCredentials().getUsername() );
} else {
HashSet<String> disabled = new HashSet<String>();
//return new UserSecurityContext(null);
return new UserSecurityContext( "SINGLE USER MODE (DEBUG) USE ONLY" );
}
}
/**
* This will return a auto login user name if it has been configured.
* Autologin means that its not really logged in, but a generic username will be used.
* Basically means security is bypassed.
*
*/
private String checkAutoLogin() {
Identity id = Identity.instance();
id.getCredentials().setUsername( GUEST_LOGIN );
try {
id.authenticate();
} catch ( LoginException e ) {
return null;
}
if ( id.isLoggedIn() ) {
return id.getCredentials().getUsername();
} else {
return null;
}
}
public Capabilities getUserCapabilities() {
if ( Contexts.isApplicationContextActive() ) {
if ( Identity.instance().hasRole( RoleTypes.ADMIN ) ) {
return Capabilities.all( PREFERENCES );
}
CapabilityCalculator c = new CapabilityCalculator();
RoleBasedPermissionManager permManager = (RoleBasedPermissionManager) Component.getInstance( "roleBasedPermissionManager" );
List<RoleBasedPermission> permissions = permManager.getRoleBasedPermission();
if ( permissions.size() == 0 ) {
RoleBasedPermissionResolver resolver = (RoleBasedPermissionResolver) Component.getInstance( "org.jboss.seam.security.roleBasedPermissionResolver" );
if ( resolver.isEnableRoleBasedAuthorization() ) {
Identity.instance().logout();
throw new AuthorizationException( "This user has no permissions setup." );
}
}
return c.calcCapabilities( permissions,
PREFERENCES );
} else {
return Capabilities.all( PREFERENCES );
}
}
private static Map<String, String> loadPrefs() {
Properties ps = new Properties();
try {
ps.load( SecurityServiceImpl.class.getResourceAsStream( "/preferences.properties" ) );
Map<String, String> prefs = new HashMap<String, String>();
for ( Object o : ps.keySet() ) {
String feature = (String) o;
prefs.put( feature,
ps.getProperty( feature ) );
}
setSystemProperties( prefs );
return prefs;
} catch ( IOException e ) {
log.info( "Couldn't find preferences.properties - using defaults" );
return new HashMap<String, String>();
}
}
/**
* Set system properties.
* If the system properties were not set, set them to Preferences so we can access them in client side.
* @param prefs
*/
private static void setSystemProperties(Map<String, String> prefs) {
final String dateFormat = "drools.dateformat";
final String defaultLanguage = "drools.defaultlanguage";
final String defaultCountry = "drools.defaultcountry";
// Set properties that were specified in the properties file
if ( prefs.containsKey( dateFormat ) ) {
System.setProperty( dateFormat,
prefs.get( dateFormat ) );
}
if ( prefs.containsKey( defaultLanguage ) ) {
System.setProperty( defaultLanguage,
prefs.get( defaultLanguage ) );
}
if ( prefs.containsKey( defaultCountry ) ) {
System.setProperty( defaultCountry,
prefs.get( defaultCountry ) );
}
// If properties were not set in the file, use the defaults
if ( !prefs.containsKey( dateFormat ) ) {
prefs.put( dateFormat,
DateUtils.getDateFormatMask() );
}
if ( !prefs.containsKey( defaultLanguage ) ) {
prefs.put( defaultLanguage,
System.getProperty( defaultLanguage ) );
}
if ( !prefs.containsKey( defaultCountry ) ) {
prefs.put( defaultCountry,
System.getProperty( defaultCountry ) );
}
}
}