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/**
* ============LICENSE_START====================================================
* org.onap.aaf
* ===========================================================================
* Copyright (c) 2018 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.aaf.cadi.aaf;
import java.util.ArrayList;
import java.util.List;
import org.onap.aaf.cadi.Permission;
import org.onap.aaf.misc.env.util.Split;
/**
* A Class that understands the AAF format of Permission (name/type/action)
* or String "name|type|action"
*
* @author Jonathan
*
*/
public class AAFPermission implements Permission {
private static final List<String> NO_ROLES;
protected String ns,type,instance,action,key;
private List<String> roles;
static {
NO_ROLES = new ArrayList<>();
}
protected AAFPermission() {roles=NO_ROLES;}
public AAFPermission(String ns, String name, String instance, String action) {
this.ns = ns;
type = name;
this.instance = instance;
this.action = action;
if (ns==null) {
key = type + '|' + instance + '|' + action;
} else {
key = ns + '|' + type + '|' + instance + '|' + action;
}
this.roles = NO_ROLES;
}
public AAFPermission(String ns, String name, String instance, String action, List<String> roles) {
this.ns = ns;
type = name;
this.instance = instance;
this.action = action;
if (ns==null) {
key = type + '|' + instance + '|' + action;
} else {
key = ns + '|' + type + '|' + instance + '|' + action;
}
this.roles = roles==null?NO_ROLES:roles;
}
/**
* Match a Permission
* if Permission is Fielded type "Permission", we use the fields
* otherwise, we split the Permission with '|'
*
* when the type or action starts with REGEX indicator character ( ! ),
* then it is evaluated as a regular expression.
*
* If you want a simple field comparison, it is faster without REGEX
*/
public boolean match(Permission p) {
String aafNS;
String aafType;
String aafInstance;
String aafAction;
if (p instanceof AAFPermission) {
AAFPermission ap = (AAFPermission)p;
// Note: In AAF > 1.0, Accepting "*" from name would violate multi-tenancy
// Current solution is only allow direct match on Type.
// 8/28/2014 Jonathan - added REGEX ability
aafNS = ap.getNS();
aafType = ap.getType();
aafInstance = ap.getInstance();
aafAction = ap.getAction();
} else {
// Permission is concatenated together: separated by
String[] aaf = Split.splitTrim('|', p.getKey());
switch(aaf.length) {
case 1:
aafNS = aaf[0];
aafType="";
aafInstance = aafAction = "*";
break;
case 2:
aafNS = aaf[0];
aafType = aaf[1];
aafInstance = aafAction = "*";
break;
case 3:
aafNS = aaf[0];
aafType = aaf[1];
aafInstance = aaf[2];
aafAction = "*";
break;
default:
aafNS = aaf[0];
aafType = aaf[1];
aafInstance = aaf[2];
aafAction = aaf[3];
break;
}
}
boolean typeMatches;
if (aafNS==null) {
if (ns==null) {
typeMatches = aafType.equals(type);
} else {
typeMatches = aafType.equals(ns+'.'+type);
}
} else if (ns==null) {
typeMatches = type.equals(aafNS+'.'+aafType);
} else if (aafNS.length() == ns.length()) {
typeMatches = aafNS.equals(ns) && aafType.equals(type);
} else { // Allow for restructuring of NS/Perm structure
typeMatches = (aafNS+'.'+aafType).equals(ns+'.'+type);
}
return (typeMatches &&
PermEval.evalInstance(instance, aafInstance) &&
PermEval.evalAction(action, aafAction));
}
public String getNS() {
return ns;
}
public String getType() {
return type;
}
public String getFullType() {
return ns + '.' + type;
}
public String getInstance() {
return instance;
}
public String getAction() {
return action;
}
public String getKey() {
return key;
}
/* (non-Javadoc)
* @see org.onap.aaf.cadi.Permission#permType()
*/
public String permType() {
return "AAF";
}
public List<String> roles() {
return roles;
}
public String toString() {
return "AAFPermission:" +
"\n\tNS: " + ns +
"\n\tType: " + type +
"\n\tInstance: " + instance +
"\n\tAction: " + action +
"\n\tKey: " + key;
}
}
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