115 lines
4.8 KiB
Java
115 lines
4.8 KiB
Java
/*
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* Copyright (c) 2012-2017 The original author or authors
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* ------------------------------------------------------
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* and Apache License v2.0 which accompanies this distribution.
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*
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* The Eclipse Public License is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* The Apache License v2.0 is available at
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* http://www.opensource.org/licenses/apache2.0.php
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*
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* You may elect to redistribute this code under either of these licenses.
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*/
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package io.moquette.spi.impl;
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import io.moquette.server.ConnectionDescriptorStore;
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import io.moquette.server.netty.NettyUtils;
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import io.moquette.spi.IMessagesStore;
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import io.moquette.spi.MessageGUID;
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import io.moquette.spi.impl.subscriptions.Subscription;
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import io.moquette.spi.impl.subscriptions.SubscriptionsStore;
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import io.moquette.spi.impl.subscriptions.Topic;
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import io.moquette.spi.security.IAuthorizator;
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import io.netty.channel.Channel;
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import io.netty.handler.codec.mqtt.MqttFixedHeader;
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import io.netty.handler.codec.mqtt.MqttMessageType;
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import io.netty.handler.codec.mqtt.MqttPubAckMessage;
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import io.netty.handler.codec.mqtt.MqttPublishMessage;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.util.List;
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import static io.moquette.spi.impl.ProtocolProcessor.asStoredMessage;
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import static io.netty.handler.codec.mqtt.MqttMessageIdVariableHeader.from;
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import static io.netty.handler.codec.mqtt.MqttQoS.AT_MOST_ONCE;
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class Qos1PublishHandler extends QosPublishHandler {
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private static final Logger LOG = LoggerFactory.getLogger(Qos1PublishHandler.class);
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private final IMessagesStore m_messagesStore;
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private final BrokerInterceptor m_interceptor;
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private final ConnectionDescriptorStore connectionDescriptors;
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private final MessagesPublisher publisher;
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public Qos1PublishHandler(IAuthorizator authorizator, IMessagesStore messagesStore, BrokerInterceptor interceptor,
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ConnectionDescriptorStore connectionDescriptors, MessagesPublisher messagesPublisher) {
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super(authorizator);
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this.m_messagesStore = messagesStore;
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this.m_interceptor = interceptor;
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this.connectionDescriptors = connectionDescriptors;
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this.publisher = messagesPublisher;
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}
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void receivedPublishQos1(Channel channel, MqttPublishMessage msg) {
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// verify if topic can be write
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final Topic topic = new Topic(msg.variableHeader().topicName());
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String clientID = NettyUtils.clientID(channel);
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String username = NettyUtils.userName(channel);
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if (!m_authorizator.canWrite(topic, username, clientID)) {
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LOG.error("MQTT client is not authorized to publish on topic. CId={}, topic={}", clientID, topic);
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return;
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}
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final int messageID = msg.variableHeader().messageId();
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// route message to subscribers
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IMessagesStore.StoredMessage toStoreMsg = asStoredMessage(msg);
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toStoreMsg.setClientID(clientID);
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this.publisher.publish2Subscribers(toStoreMsg, topic, messageID);
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sendPubAck(clientID, messageID);
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if (msg.fixedHeader().isRetain()) {
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if (!msg.payload().isReadable()) {
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m_messagesStore.cleanRetained(topic);
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} else {
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// before wasn't stored
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MessageGUID guid = m_messagesStore.storePublishForFuture(toStoreMsg);
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//TODO Il messaggio non ha il guid settato
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// m_messagesStore.storeRetained(topic, toStoreMsg.getGuid());
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m_messagesStore.storeRetained(topic, guid);
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}
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}
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m_interceptor.notifyTopicPublished(msg, clientID, username);
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}
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private void sendPubAck(String clientId, int messageID) {
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LOG.trace("sendPubAck invoked");
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MqttFixedHeader fixedHeader = new MqttFixedHeader(MqttMessageType.PUBACK, false, AT_MOST_ONCE, false, 0);
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MqttPubAckMessage pubAckMessage = new MqttPubAckMessage(fixedHeader, from(messageID));
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try {
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if (connectionDescriptors == null) {
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throw new RuntimeException("Internal bad error, found connectionDescriptors to null while it should " +
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"be initialized, somewhere it's overwritten!!");
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}
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LOG.debug("clientIDs are {}", connectionDescriptors);
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if (!connectionDescriptors.isConnected(clientId)) {
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throw new RuntimeException(String.format("Can't find a ConnectionDescriptor for client %s in cache %s",
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clientId, connectionDescriptors));
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}
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connectionDescriptors.sendMessage(pubAckMessage, messageID, clientId);
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} catch (Throwable t) {
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LOG.error(null, t);
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}
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}
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}
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