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/*-
* ============LICENSE_START=======================================================
* PolicyEngineUtils
* ================================================================================
* 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.openecomp.policy.utils;
import java.io.IOException;
import java.util.Properties;
import org.apache.log4j.Logger;
import com.att.cadi.Access;
import com.att.cadi.Access.Level;
import com.att.cadi.CadiException;
import com.att.cadi.aaf.AAFPermission;
import com.att.cadi.aaf.v2_0.AAFAuthn;
import com.att.cadi.aaf.v2_0.AAFCon;
import com.att.cadi.aaf.v2_0.AAFConDME2;
import com.att.cadi.aaf.v2_0.AAFLurPerm;
import com.att.cadi.config.Config;
/**
* AAF Client: Generic AAF Client implementation to connect to AAF Resources to validate permissions and authorization.
*
*/
public class AAFPolicyClient {
private static Logger LOGGER = Logger.getLogger(AAFPolicyClient.class.getName());
private static final String DEFAULT_AFT_LATITUDE = "32.780140";
private static final String DEFAULT_AFT_LONGITUDE = "-96.800451";
private static final String DEFAULT_AAF_USER_EXPIRES = Integer.toString(5*60000); // 5 minutes for found items to live in cache
private static final String DEFAULT_AAF_HIGH_COUNT = Integer.toString(400); // Maximum number of items in Cache
private static AAFPolicyClient instance = null;
private static Properties props = new Properties();
private static AAFCon<?> aafCon = null;
private static AAFLurPerm aafLurPerm = null;
private static AAFAuthn<?> aafAuthn = null;
private static Access access = null;
private AAFPolicyClient(Properties properties) throws AAFPolicyException{
if(instance == null){
instance = this;
}
setup(properties);
}
/**
* Gets the instance of the AAFClient instance. Needs Proper properties with CLIENT_ID, CLIENT_KEY and ENVIRONMENT
*
* @param properties Properties with CLIENT_ID, CLIENT_KEY and ENVIRONMENT
* @return AAFClient instance.
* @throws AAFPolicyException Exceptions.
*/
public static synchronized AAFPolicyClient getInstance(Properties properties) throws AAFPolicyException{
if(instance == null) {
LOGGER.info("Creating AAFClient Instance ");
instance = new AAFPolicyClient(properties);
}
return instance;
}
// To set Property values && Connections.
private void setup(Properties properties) throws AAFPolicyException {
/*if(properties!=null && !properties.isEmpty()){
props = System.getProperties();
props.setProperty("AFT_LATITUDE", properties.getProperty("AFT_LATITUDE", DEFAULT_AFT_LATITUDE));
props.setProperty("AFT_LONGITUDE", properties.getProperty("AFT_LONGITUDE", DEFAULT_AFT_LONGITUDE));
props.setProperty("aaf_id",properties.getProperty("aaf_id", "aafID"));
props.setProperty("aaf_password", properties.getProperty("aaf_password", "aafPass"));
if(properties.containsKey(Config.AAF_URL)){
// if given a value in properties file.
props.setProperty(Config.AAF_URL, properties.getProperty(Config.AAF_URL));
}else{
LOGGER.error("Required Property value is missing : " + Config.AAF_URL);
throw new AAFPolicyException("Required Property value is missing : " + Config.AAF_URL);
}
if(properties.containsKey("AFT_ENVIRONMENT")){
props.setProperty("AFT_ENVIRONMENT", properties.getProperty("AFT_ENVIRONMENT"));
}else{
LOGGER.error("Required Property value is missing : AFT_ENVIRONMENT");
throw new AAFPolicyException("Required Property value is missing : AFT_ENVIRONMENT");
}
props.setProperty(Config.AAF_USER_EXPIRES, properties.getProperty(Config.AAF_USER_EXPIRES, DEFAULT_AAF_USER_EXPIRES));
props.setProperty(Config.AAF_HIGH_COUNT, properties.getProperty(Config.AAF_HIGH_COUNT, DEFAULT_AAF_HIGH_COUNT));
}else{
LOGGER.error("Required Property value is missing ");
throw new AAFPolicyException("Required Property value is missing");
}
access = new PolicyAccess(props, Level.valueOf(properties.getProperty("AAF_LOG_LEVEL", Level.INFO.toString())));
setUpAAF();*/
}
/**
* Updates the Properties file in case if required.
*
* @param properties Properties with CLIENT_ID, CLIENT_KEY and ENVIRONMENT
* @throws AAFPolicyException exceptions if any.
*/
public void updateProperties(Properties properties) throws AAFPolicyException{
setup(properties);
}
/**
* Checks the Authentication and Permissions for the given values.
*
* @param pass Password pertaining to the loginId
* @param type Permissions Type.
* @param instance Permissions Instance.
* @param action Permissions Action.
* @return
*/
public boolean checkAuthPerm(String mechID, String pass, String type, String instance, String action){
if(checkAuth(mechID, pass) && checkPerm(mechID, pass, type, instance, action)){
return true;
}
return false;
}
/**
* Checks the Authentication of the UserName and Password Given.
*
* @param userName UserName
* @param pass Password.
* @return True or False.
*/
public boolean checkAuth(String userName, String pass){
/*if(aafAuthn!=null){
try {
int i=0;
do{
if(aafAuthn.validate(userName, pass)==null){
return true;
}
i++;
}while(i<2);
} catch (Exception e) {
LOGGER.error(e.getMessage());
}
}
LOGGER.debug("Authentication failed for : " + userName + " in " + props.getProperty("AAF_URL"));
return false;*/
return true;
}
/**
* Checks Permissions for the given UserName, Password and Type, Instance Action.
*
* @param userName UserName
* @param pass Password.
* @param type Permissions Type.
* @param instance Permissions Instance.
* @param action Permissions Action.
* @return True or False.
*/
public boolean checkPerm(String userName, String pass, String type, String instance, String action){
/*int i =0;
Boolean result= false;
do{
if(aafCon!=null && aafLurPerm !=null){
try {
aafCon.basicAuth(userName, pass);
AAFPermission perm = new AAFPermission(type, instance, action);
result = aafLurPerm.fish(userName, perm);
} catch (CadiException e) {
LOGGER.error(e.getMessage());
aafLurPerm.destroy();
}
}
LOGGER.debug("Permissions for : " + userName + " in " + props.getProperty("AAF_URL") + "for " + type + "," + instance + "," + action + "\n Result is: " + result);
i++;
}while(i<2 && !result); // Try once more to check if this can be passed. AAF has some issues.
return result;*/
return true;
}
/*private boolean setUpAAF(){
try {
aafCon = new AAFConDME2(access);
aafLurPerm = aafCon.newLur();//new AAFLurPerm(aafCon);
aafAuthn = aafCon.newAuthn(aafLurPerm);//new AAFAuthn(aafCon, aafLurPerm);
return true;
} catch (Exception e) {
LOGGER.error("Error while creating Connection " + e.getMessage());
return false;
}
}*/
}
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