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/*-
* ============LICENSE_START=======================================================
* ECOMP-REST
* ================================================================================
* 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.rest;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.openecomp.policy.rest.jpa.UserInfo;
import com.att.research.xacml.api.DataTypeException;
import com.att.research.xacml.api.Decision;
import com.att.research.xacml.api.Request;
import com.att.research.xacml.api.Response;
import com.att.research.xacml.api.Result;
import org.openecomp.policy.xacml.api.XACMLErrorConstants;
import com.att.research.xacml.api.pdp.PDPEngine;
import com.att.research.xacml.api.pdp.PDPEngineFactory;
import com.att.research.xacml.api.pdp.PDPException;
import com.att.research.xacml.std.annotations.RequestParser;
import com.att.research.xacml.std.annotations.XACMLAction;
import com.att.research.xacml.std.annotations.XACMLRequest;
import com.att.research.xacml.std.annotations.XACMLResource;
import com.att.research.xacml.std.annotations.XACMLSubject;
import com.att.research.xacml.util.FactoryException;
import org.openecomp.policy.common.logging.eelf.MessageCodes;
import org.openecomp.policy.common.logging.eelf.PolicyLogger;
public class XacmlAdminAuthorization {
private static Log logger = LogFactory.getLog(XacmlAdminAuthorization.class);
private static UserInfo userId;
public static UserInfo getUserId() {
return userId;
}
public void setUserId(UserInfo userId) {
XacmlAdminAuthorization.userId = userId;
}
public enum AdminAction {
ACTION_ACCESS("access"),
ACTION_READ("read"),
ACTION_WRITE("write"),
ACTION_ADMIN("admin");
String action;
AdminAction(String a) {
this.action = a;
}
public String toString() {
return this.action;
}
}
public enum AdminResource {
RESOURCE_APPLICATION("application"),
RESOURCE_POLICY_WORKSPACE("workspace"),
RESOURCE_POLICY_EDITOR("editor"),
RESOURCE_DICTIONARIES("dictionaries"),
RESOURCE_PDP_ADMIN("pdp_admin"),
RESOURCE_PIP_ADMIN("pip_admin"),
RESOURCE_SCOPES_SUPERADMIN("manage_scopes");
String resource;
AdminResource(String r) {
this.resource = r;
}
public String toString() {
return this.resource;
}
}
public enum Role {
ROLE_GUEST("guest"),
ROLE_ADMIN("admin"),
ROLE_EDITOR("editor"),
ROLE_SUPERGUEST("super-guest"),
ROLE_SUPEREDITOR("super-editor"),
ROLE_SUPERADMIN("super-admin");
String userRole;
Role(String a) {
this.userRole = a;
}
public String toString() {
return this.userRole;
}
}
@XACMLRequest(ReturnPolicyIdList=true)
public class AuthorizationRequest {
@XACMLSubject(includeInResults=true)
String userID;
@XACMLAction()
String action;
@XACMLResource()
String resource;
public AuthorizationRequest(String userId, String action, String resource) {
this.userID = userId;
this.action = action;
this.resource = resource;
}
public String getUserID() {
return userID;
}
public void setUserID(String userID) {
this.userID = userID;
}
public String getAction() {
return action;
}
public void setAction(String action) {
this.action = action;
}
public String getResource() {
return resource;
}
public void setResource(String resource) {
this.resource = resource;
}
}
//
// The PDP Engine
//
protected PDPEngine pdpEngine;
public XacmlAdminAuthorization() {
PDPEngineFactory pdpEngineFactory = null;
try {
pdpEngineFactory = PDPEngineFactory.newInstance();
if (pdpEngineFactory == null) {
logger.error("Failed to create PDP Engine Factory");
// TODO:EELF Cleanup - Remove logger
PolicyLogger.error("Failed to create PDP Engine Factory");
}
this.pdpEngine = pdpEngineFactory.newEngine();
} catch (FactoryException e) {
logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Exception create PDP Engine: " + e.getLocalizedMessage());
// TODO:EELF Cleanup - Remove logger
PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW, e, "XacmlAdminAuthorization", "Exception create PDP Engine");
}
}
public boolean isAuthorized(String userid, AdminAction action, AdminResource resource) {
logger.info("authorize: " + userid + " to " + action + " with " + resource);
if (this.pdpEngine == null) {
logger.warn("no pdp engine available to authorize");
return false;
}
Request request;
try {
request = RequestParser.parseRequest(new AuthorizationRequest(userid, action.toString(), resource.toString()));
} catch (IllegalArgumentException | IllegalAccessException | DataTypeException e) {
logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Failed to create request: " + e.getLocalizedMessage());
// TODO:EELF Cleanup - Remove logger
PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW, e, "XacmlAdminAuthorization", "Failed to create request");
return false;
}
if (request == null) {
logger.error("Failed to parse request.");
// TODO:EELF Cleanup - Remove logger
PolicyLogger.error("Failed to parse request");
return false;
}
logger.info("Request: " + request);
//
// Ask the engine
//
try {
Response response = this.pdpEngine.decide(request);
if (response == null) {
logger.error("Null response from PDP decide");
// TODO:EELF Cleanup - Remove logger
PolicyLogger.error("Null response from PDP decide");
}
//
// Should only be one result
//
for (Result result : response.getResults()) {
Decision decision = result.getDecision();
logger.info("Decision: " + decision);
if (decision.equals(Decision.PERMIT)) {
return true;
}
}
} catch (PDPException e) {
logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "PDP Decide failed: " + e.getLocalizedMessage());
// TODO:EELF Cleanup - Remove logger
PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW, e, "XacmlAdminAuthorization", "PDP Decide failed");
}
return false;
}
}
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