| /* |
| * 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.SessionStateHolder; |
| import org.apache.vysper.xmpp.protocol.StanzaBroker; |
| 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.SessionState; |
| import org.apache.vysper.xmpp.stanza.Stanza; |
| import org.apache.vysper.xmpp.stanza.StanzaBuilder; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * |
| * @author The Apache MINA Project (dev@mina.apache.org) |
| */ |
| public class DbResultHandler implements StanzaHandler { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(DbResultHandler.class); |
| |
| public String getName() { |
| return "result"; |
| } |
| |
| 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 false; |
| } |
| |
| public void execute(Stanza stanza, ServerRuntimeContext serverRuntimeContext, boolean isOutboundStanza, |
| SessionContext sessionContext, SessionStateHolder sessionStateHolder, StanzaBroker stanzaBroker) { |
| |
| String type = stanza.getAttributeValue("type"); |
| |
| if (type == null) { |
| // acting as the Receiving server |
| // start of dailback, respond |
| String streamId = sessionContext.getSessionId(); |
| String dailbackId = stanza.getInnerText().getText(); |
| Entity receiving = EntityImpl.parseUnchecked(stanza.getAttributeValue("from")); |
| Entity originating = serverRuntimeContext.getServerEntity(); |
| |
| Runnable onFailure = () -> { |
| StanzaBuilder builder = new StanzaBuilder("result", NamespaceURIs.JABBER_SERVER_DIALBACK, "db"); |
| builder.addAttribute("from", originating.getDomain()); |
| builder.addAttribute("to", receiving.getDomain()); |
| builder.addAttribute("type", "invalid"); |
| stanzaBroker.writeToSession(builder.build()); |
| }; |
| |
| try { |
| /* |
| * <db:verify from='target.tld' id='417GAF25' to='sender.tld'> |
| * 38b501ec606752318f72ad53de17ac6d15f86257485b0d8f5d54e1f619e6b869 </db:verify> |
| */ |
| |
| StanzaBuilder verifyBuilder = new StanzaBuilder("verify", NamespaceURIs.JABBER_SERVER_DIALBACK, "db"); |
| verifyBuilder.addAttribute("from", originating.getFullQualifiedName()); |
| verifyBuilder.addAttribute("to", receiving.getFullQualifiedName()); |
| verifyBuilder.addAttribute("id", sessionContext.getSessionId()); |
| verifyBuilder.addText(dailbackId); |
| |
| stanzaBroker.write(receiving, verifyBuilder.build(), |
| (failedToDeliverStanza, deliveryException) -> onFailure.run()); |
| } catch (Exception e) { |
| onFailure.run(); |
| } |
| } else { |
| // acting as the Originating server |
| // receiving the result from the Receiving server |
| if ("valid".equals(type)) { |
| sessionStateHolder.setState(SessionState.AUTHENTICATED); |
| Entity receiving = EntityImpl.parseUnchecked(stanza.getAttributeValue("from")); |
| LOG.info("XMPP server connector to {} authenticated using dialback", receiving); |
| } |
| } |
| } |
| |
| } |