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/*-
* ============LICENSE_START=======================================================
* ONAP CLAMP
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights
* reserved.
* ================================================================================
* 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.
* ============LICENSE_END============================================
* ===================================================================
*
*/
package org.onap.clamp.clds.service;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import java.util.Date;
import javax.ws.rs.NotAuthorizedException;
import org.onap.clamp.clds.util.LoggingUtils;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
/**
* Base/abstract Service class. Implements shared security methods.
*/
public abstract class SecureServiceBase {
protected static final EELFLogger logger = EELFManager.getInstance().getLogger(SecureServiceBase.class);
protected static final EELFLogger auditLogger = EELFManager.getInstance().getAuditLogger();
protected static final EELFLogger securityLogger = EELFManager.getInstance().getSecurityLogger();
// By default we'll set it to a default handler
private static UserNameHandler userNameHandler = new DefaultUserNameHandler();
private SecurityContext securityContext = SecurityContextHolder.getContext();
/**
* Get the userId from AAF/CSP.
*
* @return user ID
*/
public String getUserId() {
return getUserName();
}
/**
* Get the Full name.
*
* @return user name
*/
public String getUserName() {
String name = userNameHandler.retrieveUserName(securityContext);
Date startTime = new Date();
LoggingUtils.setTargetContext("CLDS", "getUserName");
LoggingUtils.setTimeContext(startTime, new Date());
securityLogger.debug("User logged into the CLDS system={}", name);
return name;
}
/**
* Get the principal name.
*
* @return the principal name
*/
public String getPrincipalName() {
String principal = ((UserDetails)securityContext.getAuthentication().getPrincipal()).getUsername();
String name = "Not found";
if (principal != null) {
name = principal;
}
logger.debug("userPrincipal.getName()={}", name);
return name;
}
/**
* Check if user is authorized for the given the permission. Allow matches
* if user has a permission with an "*" in permission instance or permission
* action even if the permission to check has a specific value in those
* fields. For example: if the user has this permission: app-perm-type|*|*
* it will be authorized if the inPermission to check is:
* app-perm-type|dev|read
*
* @param inPermission
* The permission to validate
* @return A boolean to indicate if the user has the permission to do
* execute the inPermission
* @throws NotAuthorizedException
* In case of issues with the permission test, error is returned
* in this exception
*/
public boolean isAuthorized(SecureServicePermission inPermission) throws NotAuthorizedException {
Date startTime = new Date();
LoggingUtils.setTargetContext("CLDS", "isAuthorized");
LoggingUtils.setTimeContext(startTime, new Date());
securityLogger.debug("checking if {} has permission: {}", getPrincipalName(), inPermission);
try {
return isUserPermitted(inPermission);
} catch (NotAuthorizedException nae) {
String msg = getPrincipalName() + " does not have permission: " + inPermission;
LoggingUtils.setErrorContext("100", "Authorization Error");
securityLogger.warn(msg);
throw new NotAuthorizedException(msg);
}
}
/**
* Check if user is authorized for the given aaf permission. Allow matches
* if user has a permission with an "*" in permission instance or permission
* action even if the permission to check has a specific value in those
* fields. For example: if the user has this permission: app-perm-type|*|*
* it will be authorized if the inPermission to check is:
* app-perm-type|dev|read
*
* @param inPermission
* The permission to validate
* @return A boolean to indicate if the user has the permission to do
* execute the inPermission
*/
public boolean isAuthorizedNoException(SecureServicePermission inPermission) {
securityLogger.debug("checking if {} has permission: {}", getPrincipalName(), inPermission);
Date startTime = new Date();
LoggingUtils.setTargetContext("CLDS", "isAuthorizedNoException");
LoggingUtils.setTimeContext(startTime, new Date());
try {
return isUserPermitted(inPermission);
} catch (NotAuthorizedException nae) {
String msg = getPrincipalName() + " does not have permission: " + inPermission;
LoggingUtils.setErrorContext("100", "Authorization Error");
securityLogger.warn(msg);
}
return false;
}
/**
* This method can be used by the Application.class to set the
* UserNameHandler that must be used in this class. The UserNameHandler
* where to get the User name
*
* @param handler
* The Handler impl to use
*/
public static final void setUserNameHandler(UserNameHandler handler) {
if (handler != null) {
userNameHandler = handler;
}
}
public void setSecurityContext(SecurityContext securityContext) {
this.securityContext = securityContext;
}
private boolean isUserPermitted(SecureServicePermission inPermission) {
boolean authorized = false;
// check if the user has the permission key or the permission key with a
// combination of all instance and/or all action.
if (hasRole(inPermission.getKey())) {
securityLogger.info("{} authorized for permission: {}", getPrincipalName(), inPermission.getKey());
authorized = true;
// the rest of these don't seem to be required - isUserInRole method
// appears to take * as a wildcard
} else if (hasRole(inPermission.getKeyAllInstance())) {
securityLogger.info("{} authorized because user has permission with * for instance: {}",
getPrincipalName(), inPermission.getKey());
authorized = true;
} else if (hasRole(inPermission.getKeyAllInstanceAction())) {
securityLogger.info("{} authorized because user has permission with * for instance and * for action: {}",
getPrincipalName(), inPermission.getKey());
authorized = true;
} else if (hasRole(inPermission.getKeyAllAction())) {
securityLogger.info("{} authorized because user has permission with * for action: {}",
getPrincipalName(), inPermission.getKey());
authorized = true;
} else {
throw new NotAuthorizedException("");
}
return authorized;
}
protected boolean hasRole(String role) {
Authentication authentication = securityContext.getAuthentication();
if (authentication == null) {
return false;
}
for (GrantedAuthority auth : authentication.getAuthorities()) {
if (role.equals(auth.getAuthority())) {
return true;
}
}
return false;
}
}
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