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/*
* ============LICENSE_START=======================================================
* PROJECT
* ================================================================================
* 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.dcae.restapi;
import java.io.IOException;
import java.net.URL;
import javax.servlet.ServletException;
import org.apache.tomcat.util.codec.binary.Base64;
import org.onap.dcae.commonFunction.CommonStartup;
import org.onap.dcae.commonFunction.VESLogger;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.att.nsa.apiServer.CommonServlet;
import com.att.nsa.configs.ConfigDbException;
import com.att.nsa.drumlin.service.framework.routing.DrumlinRequestRouter;
import com.att.nsa.drumlin.service.framework.routing.playish.DrumlinPlayishRoutingFileSource;
import com.att.nsa.drumlin.service.standards.HttpStatusCodes;
import com.att.nsa.drumlin.till.nv.rrNvReadable;
import com.att.nsa.drumlin.till.nv.rrNvReadable.loadException;
import com.att.nsa.drumlin.till.nv.rrNvReadable.missingReqdSetting;
import com.att.nsa.security.NsaAuthenticator;
import com.att.nsa.security.authenticators.SimpleAuthenticator;
import com.att.nsa.security.db.simple.NsaSimpleApiKey;
public class RestfulCollectorServlet extends CommonServlet
{
private static final long serialVersionUID = 1L;
private static final Logger log = LoggerFactory.getLogger ( RestfulCollectorServlet.class );
private static String authCredentialsList;
public RestfulCollectorServlet ( rrNvReadable settings ) throws loadException, missingReqdSetting
{
super ( settings, "collector", false );
authCredentialsList = settings.getString(CommonStartup.KSETTING_AUTHLIST, null);
}
/**
* This is called once at server start. Use it to init any shared objects and setup the route mapping.
*/
@Override
protected void servletSetup () throws rrNvReadable.missingReqdSetting, rrNvReadable.invalidSettingValue, ServletException
{
super.servletSetup ();
try {
// the base class provides a bunch of things like API authentication and ECOMP compliant
// logging. The Restful Collector likely doesn't need API authentication, so for now,
// we init the base class services with an in-memory (and empty!) config DB.
commonServletSetup ( ConfigDbType.MEMORY );
VESLogger.setUpEcompLogging();
// setup the servlet routing and error handling
final DrumlinRequestRouter drr = getRequestRouter ();
// you can tell the request router what to do when a particular kind of exception is thrown.
drr.setHandlerForException(IllegalArgumentException.class,
(ctx, cause) -> sendJsonReply (ctx, HttpStatusCodes.k400_badRequest, cause.getMessage() ));
// load the routes from the config file
final URL routes = findStream ( "routes.conf" );
if ( routes == null ) throw new rrNvReadable.missingReqdSetting ( "No routing configuration." );
final DrumlinPlayishRoutingFileSource drs = new DrumlinPlayishRoutingFileSource ( routes );
drr.addRouteSource ( drs );
if (CommonStartup.authflag > 0) {
NsaAuthenticator<NsaSimpleApiKey> NsaAuth;
NsaAuth = createAuthenticator(authCredentialsList);
this.getSecurityManager().addAuthenticator(NsaAuth);
}
log.info ( "Restful Collector Servlet is up." );
}
catch ( SecurityException | IOException | ConfigDbException e ) {
throw new ServletException ( e );
}
}
public NsaAuthenticator<NsaSimpleApiKey> createAuthenticator(String authCredentials) {
NsaAuthenticator<NsaSimpleApiKey> authenticator = new SimpleAuthenticator();
if (authCredentials != null) {
String authpair[] = authCredentials.split("\\|");
for (String pair : authpair) {
String lineid[] = pair.split(",");
String listauthid = lineid[0];
String listauthpwd = new String(Base64.decodeBase64(lineid[1]));
((SimpleAuthenticator) authenticator).add(listauthid, listauthpwd);
}
} else {
((SimpleAuthenticator) authenticator).add("admin", "collectorpasscode");
}
return authenticator;
}
}
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