org.activiti.app.security.SecurityUtils Maven / Gradle / Ivy
/* 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.
*/
package org.activiti.app.security;
import org.activiti.app.constant.GroupIds;
import org.activiti.app.service.exception.NotPermittedException;
import org.activiti.engine.identity.User;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;
/**
* Utility class for Spring Security.
*/
public final class SecurityUtils {
private static User assumeUser;
private SecurityUtils() {
}
/**
* Get the login of the current user.
*/
public static String getCurrentUserId() {
User user = getCurrentUserObject();
if (user != null) {
return user.getId();
}
return null;
}
/**
* @return the {@link User} object associated with the current logged in user.
*/
public static User getCurrentUserObject() {
if (assumeUser != null) {
return assumeUser;
}
User user = null;
ActivitiAppUser appUser = getCurrentActivitiAppUser();
if (appUser != null) {
user = appUser.getUserObject();
}
return user;
}
public static ActivitiAppUser getCurrentActivitiAppUser() {
SecurityContext securityContext = SecurityContextHolder.getContext();
ActivitiAppUser user = null;
if (securityContext != null && securityContext.getAuthentication() != null) {
Object principal = securityContext.getAuthentication().getPrincipal();
if (principal != null && principal instanceof ActivitiAppUser) {
user = (ActivitiAppUser) principal;
}
}
return user;
}
public static boolean currentUserHasCapability(String capability) {
ActivitiAppUser user = getCurrentActivitiAppUser();
for (GrantedAuthority grantedAuthority : user.getAuthorities()) {
if (capability.equals(grantedAuthority.getAuthority())) {
return true;
}
}
return false;
}
public static void assumeUser(User user) {
assumeUser = user;
}
public static void clearAssumeUser() {
assumeUser = null;
}
}