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package com.juick.ws;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.xml.XmlMapper;
import com.juick.User;
import com.juick.service.MessagesService;
import com.juick.service.SubscriptionService;
import org.apache.commons.lang3.math.NumberUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.env.Environment;
import org.springframework.util.Assert;
import org.springframework.web.socket.TextMessage;
import rocks.xmpp.core.XmppException;
import rocks.xmpp.core.session.Extension;
import rocks.xmpp.core.session.XmppSession;
import rocks.xmpp.core.session.XmppSessionConfiguration;
import rocks.xmpp.core.session.debug.LogbackDebugger;
import rocks.xmpp.core.stanza.model.Message;
import rocks.xmpp.extensions.component.accept.ExternalComponent;
import javax.inject.Inject;
import java.io.IOException;
import java.util.List;
import java.util.stream.Collectors;
/**
* @author ugnich
*/
public class XMPPConnection implements AutoCloseable {
private static final Logger logger = LoggerFactory.getLogger(XMPPConnection.class);
private final WebsocketComponent wsHandler;
private final String xmppPassword;
private final ObjectMapper ms;
private final int xmppPort;
private final String wsJid;
private XmppSession xmpp;
@Inject
MessagesService messagesService;
@Inject
SubscriptionService subscriptionService;
public XMPPConnection(
final Environment env, final WebsocketComponent wsHandler) {
Assert.notNull(env);
Assert.notNull(wsHandler);
this.wsHandler = wsHandler;
xmppPassword = env.getProperty("xmpp_password");
xmppPort = NumberUtils.toInt(env.getProperty("xmpp_port"), 5347);
wsJid = env.getProperty("ws_jid", "ws.juick.local");
ms = new XmlMapper();
XmppSessionConfiguration configuration = XmppSessionConfiguration.builder()
.extensions(Extension.of(com.juick.Message.class))
.debugger(LogbackDebugger.class)
.build();
xmpp = ExternalComponent.create(wsJid, xmppPassword, configuration, "localhost", xmppPort);
xmpp.addInboundMessageListener(e -> {
try {
Message msg = e.getMessage();
com.juick.Message jmsg = msg.getExtension(com.juick.Message.class);
if (jmsg != null) {
if (logger.isInfoEnabled()) // prevent writeValueAsString execution if log is disabled
logger.info("got msg: {}", ms.writeValueAsString(jmsg));
if (jmsg.getMid() == 0) {
int uid_to = NumberUtils.toInt(msg.getTo().getLocal(), 0);
if (uid_to > 0) {
onJuickPM(uid_to, jmsg);
}
} else if (jmsg.getRid() == 0) {
onJuickMessagePost(jmsg);
} else {
// to get quote
com.juick.Message reply = messagesService.getReply(jmsg.getMid(), jmsg.getRid());
onJuickMessageReply(reply);
}
}
} catch (JsonProcessingException ex) {
logger.error("mapper exception", ex);
}
});
try {
xmpp.connect();
} catch (XmppException e) {
logger.warn("xmpp extension", e);
}
}
@Override
public void close() throws Exception {
if (xmpp != null)
xmpp.close();
logger.info("XmppSession on WS destroyed");
}
private void onJuickPM(final int uid_to, final com.juick.Message jmsg) throws JsonProcessingException {
String json = ms.writeValueAsString(jmsg);
synchronized (wsHandler.getClients()) {
wsHandler.getClients().stream().filter(c -> !c.legacy && c.visitor.getUid() == uid_to).forEach(c -> {
try {
logger.info("sending pm to {}", c.visitor.getUid());
c.session.sendMessage(new TextMessage(json));
} catch (IOException e) {
logger.warn("ws error", e);
}
});
}
}
private void onJuickMessagePost(final com.juick.Message jmsg) throws JsonProcessingException {
String json = ms.writeValueAsString(jmsg);
List<Integer> uids = subscriptionService.getSubscribedUsers(jmsg.getUser().getUid(), jmsg.getMid())
.stream().map(User::getUid).collect(Collectors.toList());
synchronized (wsHandler.getClients()) {
wsHandler.getClients().stream().filter(c ->
(!c.legacy && c.visitor.getUid() == 0) // anonymous users
|| (!c.legacy && uids.contains(c.visitor.getUid()))) // subscriptions
.forEach(c -> {
try {
logger.info("sending message to {}", c.visitor.getUid());
c.session.sendMessage(new TextMessage(json));
} catch (IOException e) {
logger.warn("ws error", e);
}
});
wsHandler.getClients().stream().filter(c ->
c.legacy && c.allMessages) // legacy all posts
.forEach(c -> {
try {
logger.info("sending message to legacy client {}", c.visitor.getUid());
c.session.sendMessage(new TextMessage(json));
} catch (IOException e) {
logger.warn("ws error", e);
}
});
}
}
private void onJuickMessageReply(final com.juick.Message jmsg) throws JsonProcessingException {
String json = ms.writeValueAsString(jmsg);
List<Integer> threadUsers =
subscriptionService.getUsersSubscribedToComments(jmsg.getMid(), jmsg.getUser().getUid())
.stream().map(User::getUid).collect(Collectors.toList());
synchronized (wsHandler.getClients()) {
wsHandler.getClients().stream().filter(c ->
(!c.legacy && c.visitor.getUid() == 0) // anonymous users
|| (!c.legacy && threadUsers.contains(c.visitor.getUid()))) // subscriptions
.forEach(c -> {
try {
logger.info("sending reply to {}", c.visitor.getUid());
c.session.sendMessage(new TextMessage(json));
} catch (IOException e) {
logger.warn("ws error", e);
}
});
wsHandler.getClients().stream().filter(c ->
(c.legacy && c.allReplies) || (c.legacy && c.MID == jmsg.getMid())) // legacy replies
.forEach(c -> {
try {
logger.info("sending reply to legacy client {}", c.visitor.getUid());
c.session.sendMessage(new TextMessage(json));
} catch (IOException e) {
logger.warn("ws error", e);
}
});
}
}
}
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