/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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. * */ package org.apache.vysper.xmpp.modules.extension.xep0220_server_dailback; import org.apache.vysper.xmpp.addressing.Entity; import org.apache.vysper.xmpp.addressing.EntityImpl; import org.apache.vysper.xmpp.protocol.NamespaceURIs; import org.apache.vysper.xmpp.protocol.ResponseStanzaContainer; import org.apache.vysper.xmpp.protocol.ResponseStanzaContainerImpl; import org.apache.vysper.xmpp.protocol.SessionStateHolder; import org.apache.vysper.xmpp.protocol.StanzaHandler; import org.apache.vysper.xmpp.server.ServerRuntimeContext; import org.apache.vysper.xmpp.server.SessionContext; import org.apache.vysper.xmpp.server.SessionContext.SessionTerminationCause; import org.apache.vysper.xmpp.server.SessionState; import org.apache.vysper.xmpp.stanza.Stanza; import org.apache.vysper.xmpp.stanza.StanzaBuilder; /** * * @author The Apache MINA Project (dev@mina.apache.org) */ public class DbVerifyHandler implements StanzaHandler { private DialbackIdGenerator dailbackIdGenerator = new DialbackIdGenerator(); public String getName() { return "verify"; } public boolean verify(Stanza stanza) { if (stanza == null) return false; if (!getName().equals(stanza.getName())) return false; String namespaceURI = stanza.getNamespaceURI(); if (namespaceURI == null) return false; return namespaceURI.equals(NamespaceURIs.JABBER_SERVER_DIALBACK); } public boolean isSessionRequired() { return true; } public ResponseStanzaContainer execute(Stanza stanza, ServerRuntimeContext serverRuntimeContext, boolean isOutboundStanza, SessionContext sessionContext, SessionStateHolder sessionStateHolder) { String type = stanza.getAttributeValue("type"); String id = stanza.getAttributeValue("id"); Entity receiving = EntityImpl.parseUnchecked(stanza.getAttributeValue("from")); Entity originating = serverRuntimeContext.getServerEnitity(); if(type == null) { // acting as a Authoritative server // getting asked for verification from the Receiving server String dailbackId = stanza.getInnerText().getText(); StanzaBuilder builder = new StanzaBuilder("verify", NamespaceURIs.JABBER_SERVER_DIALBACK, "db"); builder.addAttribute("from", originating.getDomain()); builder.addAttribute("to", receiving.getDomain()); builder.addAttribute("id", id); if(dailbackIdGenerator.verify(dailbackId, receiving, originating, id)) { builder.addAttribute("type", "valid"); } else { builder.addAttribute("type", "invalid"); } return new ResponseStanzaContainerImpl(builder.build()); } else { // acting as a Receiving server // getting a response from the Authoritative server SessionStateHolder dialbackSessionStateHolder = (SessionStateHolder) sessionContext.getAttribute("DIALBACK_SESSION_STATE_HOLDER"); SessionContext dialbackSessionContext = (SessionContext) sessionContext.getAttribute("DIALBACK_SESSION_CONTEXT"); // XMPPServerConnector connector = serverRuntimeContext.getServerConnectorRegistry().getConnectorBySessionId(id); // if(connector != null) { // SessionStateHolder dialbackSessionStateHolder = connector.getSessionStateHolder(); // SessionContext dialbackSessionContext = connector.getSessionContext(); Entity otherServer = sessionContext.getInitiatingEntity(); String resultType = "invalid"; // dialbackSessionContext must be non-null or someone is trying to send this stanza in the wrong state if("valid".equals(type)) { dialbackSessionStateHolder.setState(SessionState.AUTHENTICATED); dialbackSessionContext.setInitiatingEntity(otherServer); resultType = "valid"; } // <db:result xmlns:db="jabber:server:dialback" to="xmpp.protocol7.com" from="jabber.org" type="valid"></db:result> StanzaBuilder builder = new StanzaBuilder("result", NamespaceURIs.JABBER_SERVER_DIALBACK, "db"); builder.addAttribute("from", originating.getDomain()); builder.addAttribute("to", otherServer.getDomain()); builder.addAttribute("type", resultType); dialbackSessionContext.getResponseWriter().write(builder.build()); // } // close this session as we are now done checking dialback sessionContext.endSession(SessionTerminationCause.CLIENT_BYEBYE); return null; } } }