xmpp: move to library project

1 files changed, 750 insertions, 0 deletions

diff --git a/juick-server-xmpp/src/main/java/com/juick/server/XMPPConnection.java b/juick-server-xmpp/src/main/java/com/juick/server/XMPPConnection.java
new file mode 100644
index 00000000..a60b506d
--- /dev/null
+++ b/juick-server-xmpp/src/main/java/com/juick/server/XMPPConnection.java
@@ -0,0 +1,750 @@
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.juick.server;
+
+import com.juick.Tag;
+import com.juick.User;
+import com.juick.server.component.LikeEvent;
+import com.juick.server.component.MessageEvent;
+import com.juick.server.component.PingEvent;
+import com.juick.server.component.SubscribeEvent;
+import com.juick.server.helpers.UserInfo;
+import com.juick.server.util.HttpUtils;
+import com.juick.server.util.ImageUtils;
+import com.juick.server.util.TagUtils;
+import com.juick.server.xmpp.helpers.CommandResult;
+import com.juick.server.xmpp.s2s.BasicXmppSession;
+import com.juick.server.xmpp.s2s.StanzaListener;
+import com.juick.service.*;
+import com.juick.util.MessageUtils;
+import org.apache.commons.codec.digest.DigestUtils;
+import org.apache.commons.io.FilenameUtils;
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.context.annotation.DependsOn;
+import org.springframework.stereotype.Component;
+import rocks.xmpp.addr.Jid;
+import rocks.xmpp.core.XmppException;
+import rocks.xmpp.core.stanza.AbstractIQHandler;
+import rocks.xmpp.core.stanza.model.*;
+import rocks.xmpp.core.stanza.model.client.ClientMessage;
+import rocks.xmpp.core.stanza.model.client.ClientPresence;
+import rocks.xmpp.core.stanza.model.errors.Condition;
+import rocks.xmpp.extensions.caps.model.EntityCapabilities;
+import rocks.xmpp.extensions.component.accept.ExternalComponent;
+import rocks.xmpp.extensions.filetransfer.FileTransfer;
+import rocks.xmpp.extensions.filetransfer.FileTransferManager;
+import rocks.xmpp.extensions.nick.model.Nickname;
+import rocks.xmpp.extensions.oob.model.x.OobX;
+import rocks.xmpp.extensions.ping.PingManager;
+import rocks.xmpp.extensions.vcard.temp.model.VCard;
+import rocks.xmpp.extensions.version.SoftwareVersionManager;
+import rocks.xmpp.extensions.version.model.SoftwareVersion;
+import rocks.xmpp.util.XmppUtils;
+
+import javax.annotation.PostConstruct;
+import javax.annotation.PreDestroy;
+import javax.inject.Inject;
+import javax.xml.bind.JAXBException;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamWriter;
+import java.io.IOException;
+import java.io.StringWriter;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+
+/**
+ * @author ugnich
+ */
+@Component
+@DependsOn("XMPPRouter")
+public class XMPPConnection implements StanzaListener, NotificationListener {
+
+    private static final Logger logger = LoggerFactory.getLogger(XMPPConnection.class);
+
+    private ExternalComponent router;
+    @Inject
+    private XMPPServer xmpp;
+    @Inject
+    private CommandsManager commandsManager;
+    @Value("${xmppbot_jid:juick@localhost}")
+    private Jid jid;
+    @Value("${componentname:localhost}")
+    private String componentName;
+    @Value("${component_port:5347}")
+    private int componentPort;
+    @Value("${xmpp_password:secret}")
+    private String password;
+    @Value("${xmpp_disabled:false}")
+    private boolean isXmppDisabled;
+    @Value("${upload_tmp_dir:#{systemEnvironment['TEMP'] ?: '/tmp'}}")
+    private String tmpDir;
+    @Value("${img_path:#{systemEnvironment['TEMP'] ?: '/tmp'}}")
+    private String imgDir;
+
+    @Inject
+    private MessagesService messagesService;
+    @Inject
+    private UserService userService;
+    @Inject
+    private SubscriptionService subscriptionService;
+    @Inject
+    private PMQueriesService pmQueriesService;
+    @Inject
+    private TagService tagService;
+    @Inject
+    private BasicXmppSession session;
+    @Inject
+    private ExecutorService service;
+    @Inject
+    private ApplicationEventPublisher applicationEventPublisher;
+
+    @PostConstruct
+    public void init() {
+        logger.info("stream router start connecting to {}", componentPort);
+        xmpp.addStanzaListener(this);
+        router = ExternalComponent.create(componentName, password, session.getConfiguration(), "localhost",
+                componentPort);
+        PingManager pingManager = router.getManager(PingManager.class);
+        pingManager.setEnabled(true);
+        router.disableFeature(EntityCapabilities.NAMESPACE);
+        SoftwareVersionManager softwareVersionManager = router.getManager(SoftwareVersionManager.class);
+        softwareVersionManager.setSoftwareVersion(new SoftwareVersion("Juick", "2.x",
+                System.getProperty("os.name", "generic")));
+        VCard vCard = new VCard();
+        vCard.setFormattedName("Juick");
+        try {
+            vCard.setUrl(new URL("http://juick.com/"));
+            vCard.setPhoto(new VCard.Image("image/png", IOUtils.toByteArray(
+                    getClass().getClassLoader().getResource("juick.png"))));
+        } catch (MalformedURLException e) {
+            logger.error("invalid url", e);
+        } catch (IOException e) {
+            logger.warn("invalid resource", e);
+        }
+        router.addIQHandler(VCard.class, new AbstractIQHandler(IQ.Type.GET) {
+            @Override
+            protected IQ processRequest(IQ iq) {
+                if (iq.getTo().equals(jid) || iq.getTo().asBareJid().equals(jid.asBareJid())
+                        || iq.getTo().asBareJid().toEscapedString().equals(jid.getDomain())) {
+                    return iq.createResult(vCard);
+                }
+                User user = userService.getUserByName(iq.getTo().getLocal());
+                if (user.getUid() > 0) {
+                    UserInfo info = userService.getUserInfo(user);
+                    VCard userVCard = new VCard();
+                    userVCard.setFormattedName(info.getFullName());
+                    userVCard.setNickname(user.getName());
+                    try {
+                        userVCard.setPhoto(new VCard.Image(new URI("http://i.juick.com/a/" + user.getUid() + ".png")));
+                        if (info.getUrl() != null) {
+                            userVCard.setUrl(new URL(info.getUrl()));
+                        }
+                    } catch (MalformedURLException | URISyntaxException e) {
+                        logger.warn("url exception", e);
+                    }
+                    return iq.createResult(userVCard);
+                }
+                return iq.createError(Condition.BAD_REQUEST);
+            }
+        });
+        router.addInboundMessageListener(e -> {
+            Message message = e.getMessage();
+            Jid jid = message.getTo();
+            if (jid.getDomain().equals(router.getDomain().toEscapedString()) || jid.equals(jid)) {
+                com.juick.Message jmsg = message.getExtension(com.juick.Message.class);
+                if (jmsg != null) {
+                    if (jid.getLocal().equals("recomm")) {
+                        User fromUser = jmsg.getUser();
+                        com.juick.Message msg = messagesService.getMessage(jmsg.getMid());
+                        applicationEventPublisher.publishEvent(new LikeEvent(this, fromUser, msg));
+                    } else if (jid.getLocal().equals("pm")) {
+                        applicationEventPublisher.publishEvent(new MessageEvent(this, jmsg));
+                    } else {
+                        if (jmsg.getRid() > 0) {
+                            // to get quote and attachment
+                            com.juick.Message reply = messagesService.getReply(jmsg.getMid(), jmsg.getRid());
+                            sendJuickComment(reply);
+                            applicationEventPublisher.publishEvent(new MessageEvent(this, reply));
+                        } else if (jmsg.getMid() > 0) {
+                            sendJuickMessage(jmsg);
+                            applicationEventPublisher.publishEvent(new MessageEvent(this,
+                                    messagesService.getMessage(jmsg.getMid())));
+                        }
+                    }
+                } else {
+                    String attachment = StringUtils.EMPTY;
+                    OobX oobX = message.getExtension(OobX.class);
+                    if (oobX != null) {
+                        attachment = oobX.getUri().toString();
+                    }
+                    try {
+                        processMessage(userService.getUserByUID(NumberUtils.toInt(message.getFrom().getLocal(), 0)).orElse(new User()), message.getBody(), attachment);
+                    } catch (Exception e1) {
+                        logger.warn("message exception", e1);
+                    }
+                }
+            } else if (jid.getDomain().endsWith(jid.getDomain()) && (jid.getDomain().equals(this.jid.getDomain())
+                    || jid.getDomain().endsWith("." + jid.getDomain()))) {
+                if (logger.isInfoEnabled()) {
+                    try {
+                        logger.info("unhandled message: {}", stanzaToString(message));
+                    } catch (JAXBException | XMLStreamException ex) {
+                        logger.error("JAXB exception", ex);
+                    }
+                }
+            } else {
+                s2s(ClientMessage.from(message));
+            }
+        });
+        router.addInboundIQListener(e -> {
+            IQ iq = e.getIQ();
+            Jid jid = iq.getTo();
+            if (!jid.getDomain().equals(this.jid.getDomain())) {
+                s2s(iq);
+            }
+        });
+        FileTransferManager fileTransferManager = router.getManager(FileTransferManager.class);
+        fileTransferManager.addFileTransferOfferListener(e -> {
+            try {
+                List<String> allowedTypes = new ArrayList<String>() {{
+                    add("png");
+                    add("jpg");
+                }};
+                String attachmentExtension = FilenameUtils.getExtension(e.getName()).toLowerCase();
+                String targetFilename = String.format("%s.%s",
+                        DigestUtils.md5Hex(String.format("%s-%s",
+                                e.getInitiator().toString(), e.getSessionId()).getBytes()), attachmentExtension);
+                if (allowedTypes.contains(attachmentExtension)) {
+                    Path filePath = Paths.get(tmpDir, targetFilename);
+                    FileTransfer ft = e.accept(filePath).get();
+                    ft.addFileTransferStatusListener(st -> {
+                        logger.debug("{}: received {} of {}", e.getName(), st.getBytesTransferred(), e.getSize());
+                        if (st.getStatus().equals(FileTransfer.Status.COMPLETED)) {
+                            logger.info("transfer completed");
+                            try {
+                                processMessage(userService.getUserByJID(e.getInitiator().toEscapedString()),  e.getDescription(), targetFilename);
+                            } catch (Exception e1) {
+                                logger.error("ft error", e1);
+                            }
+
+                        } else if (st.getStatus().equals(FileTransfer.Status.FAILED)) {
+                            logger.info("transfer failed", ft.getException());
+                            Message msg = new Message();
+                            msg.setType(Message.Type.CHAT);
+                            msg.setFrom(jid);
+                            msg.setTo(e.getInitiator());
+                            msg.setBody("File transfer failed, please report to us");
+                            router.sendMessage(msg);
+                        } else if (st.getStatus().equals(FileTransfer.Status.CANCELED)) {
+                            logger.info("transfer cancelled");
+                        }
+                    });
+                    ft.transfer();
+                    logger.info("transfer started");
+                } else {
+                    e.reject();
+                    logger.info("transfer rejected");
+                }
+            } catch (IOException | InterruptedException | ExecutionException e1) {
+                logger.error("ft error", e1);
+            }
+        });
+        router.addConnectionListener(event -> {
+            if (event.getType().equals(rocks.xmpp.core.session.ConnectionEvent.Type.RECONNECTION_SUCCEEDED)) {
+                logger.info("component connected");
+            }
+        });
+        if (!isXmppDisabled) {
+            service.submit(() -> {
+                try {
+                    Thread.sleep(3000);
+                    router.connect();
+                    broadcastPresence(null);
+                } catch (InterruptedException | XmppException e) {
+                    logger.warn("xmpp exception", e);
+                }
+            });
+        }
+    }
+
+    private String stanzaToString(Stanza stanza) throws XMLStreamException, JAXBException {
+        StringWriter stanzaWriter = new StringWriter();
+        XMLStreamWriter xmppStreamWriter = XmppUtils.createXmppStreamWriter(
+                router.getConfiguration().getXmlOutputFactory().createXMLStreamWriter(stanzaWriter));
+        router.createMarshaller().marshal(stanza, xmppStreamWriter);
+        xmppStreamWriter.flush();
+        xmppStreamWriter.close();
+        return stanzaWriter.toString();
+    }
+
+    private void s2s(Stanza stanza) {
+        try {
+            String xml = stanzaToString(stanza);
+            logger.info("stream router (out): {}", xml);
+            xmpp.sendOut(stanza);
+        } catch (XMLStreamException | JAXBException e) {
+            logger.error("JAXB exception", e);
+        }
+
+    }
+
+
+
+    private void sendJuickMessage(com.juick.Message jmsg) {
+        List<String> jids = new ArrayList<>();
+
+        if (jmsg.FriendsOnly) {
+            jids = subscriptionService.getJIDSubscribedToUser(jmsg.getUser().getUid(), jmsg.FriendsOnly);
+        } else {
+            List<User> users = subscriptionService.getSubscribedUsers(jmsg.getUser().getUid(), jmsg.getMid());
+            for (User user : users) {
+                jids.addAll(userService.getJIDsbyUID(user.getUid()));
+            }
+        }
+        com.juick.Message fullMsg = messagesService.getMessage(jmsg.getMid());
+        String txt = "@" + jmsg.getUser().getName() + ":" + MessageUtils.getTagsString(fullMsg) + "\n";
+        String attachmentUrl = MessageUtils.attachmentUrl(fullMsg);
+        if (StringUtils.isNotEmpty(attachmentUrl)) {
+            txt += attachmentUrl + "\n";
+        }
+        txt += StringUtils.defaultString(jmsg.getText()) + "\n\n";
+        txt += "#" + jmsg.getMid() + " http://juick.com/" + jmsg.getMid();
+
+        Nickname nick = new Nickname("@" + jmsg.getUser().getName());
+
+        Message msg = new Message();
+        msg.setFrom(jid);
+        msg.setBody(txt);
+        msg.setType(Message.Type.CHAT);
+        msg.setThread("juick-" + jmsg.getMid());
+        msg.addExtension(jmsg);
+        msg.addExtension(nick);
+        if (StringUtils.isNotEmpty(attachmentUrl)) {
+            try {
+                OobX oob = new OobX(new URI(attachmentUrl));
+                msg.addExtension(oob);
+            } catch (URISyntaxException e) {
+                logger.warn("uri exception", e);
+            }
+        }
+        for (String jid : jids) {
+            msg.setTo(Jid.of(jid));
+            s2s(ClientMessage.from(msg));
+        }
+    }
+
+    public void sendJuickComment(com.juick.Message jmsg) {
+        List<User> users;
+        String replyQuote;
+        String replyTo;
+
+        com.juick.Message op = messagesService.getMessage(jmsg.getMid());
+        users = subscriptionService.getUsersSubscribedToComments(op, jmsg);
+        com.juick.Message replyMessage = jmsg.getReplyto() > 0 ? messagesService.getReply(jmsg.getMid(), jmsg.getReplyto())
+                : messagesService.getMessage(jmsg.getMid());
+        replyTo = replyMessage.getUser().getName();
+        com.juick.Message fullReply = messagesService.getReply(jmsg.getMid(), jmsg.getRid());
+        replyQuote = fullReply.getReplyQuote();
+
+        String txt = "Reply by @" + jmsg.getUser().getName() + ":\n" + replyQuote + "\n@" + replyTo + " ";
+        String attachmentUrl = MessageUtils.attachmentUrl(fullReply);
+        if (StringUtils.isNotEmpty(attachmentUrl)) {
+            txt += attachmentUrl + "\n";
+        }
+        txt += StringUtils.defaultString(jmsg.getText()) + "\n\n" + "#" + jmsg.getMid() + "/" + jmsg.getRid() + " http://juick.com/" + jmsg.getMid() + "#" + jmsg.getRid();
+
+        Message msg = new Message();
+        msg.setFrom(jid);
+        msg.setBody(txt);
+        msg.setType(Message.Type.CHAT);
+        msg.addExtension(jmsg);
+        for (User user : users) {
+            for (String jid : userService.getJIDsbyUID(user.getUid())) {
+                msg.setTo(Jid.of(jid));
+                s2s(ClientMessage.from(msg));
+            }
+        }
+    }
+
+    @Override
+    public void processMessageEvent(MessageEvent event) {
+        com.juick.Message msg = event.getMessage();
+        boolean isPM = msg.getMid() == 0;
+        boolean isReply = msg.getRid() > 0;
+        if (isPM) {
+            userService.getJIDsbyUID(msg.getTo().getUid())
+                    .forEach(userJid -> {
+                        Message mm = new Message();
+                        mm.setTo(Jid.of(userJid));
+                        mm.setType(Message.Type.CHAT);
+                        boolean inroster = pmQueriesService.havePMinRoster(msg.getUser().getUid(), userJid);
+                        if (inroster) {
+                            mm.setFrom(Jid.of(msg.getUser().getName(), "juick.com", "Juick"));
+                            mm.setBody(msg.getText());
+                        } else {
+                            mm.setFrom(jid);
+                            mm.setBody("Private message from @" + msg.getUser().getName() + ":\n" + msg.getText());
+                        }
+                        s2s(ClientMessage.from(mm));
+                    });
+        } else if (!isReply) {
+            String notify = "New message posted.\n#" + msg.getMid() + " https://juick.com/" + msg.getMid();
+            userService.getJIDsbyUID(msg.getUser().getUid())
+                    .forEach(jid -> sendReply(Jid.of(jid), notify));
+        }
+    }
+
+    private void sendReply(Jid jidTo, String txt) {
+        Message reply = new Message();
+        reply.setFrom(jid);
+        reply.setTo(jidTo);
+        reply.setType(Message.Type.CHAT);
+        reply.setBody(txt);
+        s2s(ClientMessage.from(reply));
+    }
+
+    @Override
+    public void processSubscribeEvent(SubscribeEvent subscribeEvent) {
+
+    }
+
+    @Override
+    public void processLikeEvent(LikeEvent likeEvent) {
+        List<User> users;
+        com.juick.Message jmsg = likeEvent.getMessage();
+        User liker = likeEvent.getUser();
+        users = subscriptionService.getUsersSubscribedToUserRecommendations(liker.getUid(),
+                jmsg.getMid(), jmsg.getUser().getUid());
+
+        String txt = "Recommended by @" + liker.getName() + ":\n";
+        txt += "@" + jmsg.getUser().getName() + ":" + MessageUtils.getTagsString(jmsg) + "\n";
+        String attachmentUrl = MessageUtils.attachmentUrl(jmsg);
+        if (StringUtils.isNotEmpty(attachmentUrl)) {
+            txt += attachmentUrl + "\n";
+        }
+        txt += StringUtils.defaultString(jmsg.getText()) + "\n\n";
+        txt += "#" + jmsg.getMid();
+        if (jmsg.getReplies() > 0) {
+            if (jmsg.getReplies() % 10 == 1 && jmsg.getReplies() % 100 != 11) {
+                txt += " (" + jmsg.getReplies() + " reply)";
+            } else {
+                txt += " (" + jmsg.getReplies() + " replies)";
+            }
+        }
+        txt += " http://juick.com/" + jmsg.getMid();
+
+        Nickname nick = new Nickname("@" + jmsg.getUser().getName());
+
+        Message msg = new Message();
+        msg.setFrom(jid);
+        msg.setBody(txt);
+        msg.setType(Message.Type.CHAT);
+        msg.setThread("juick-" + jmsg.getMid());
+        msg.addExtension(jmsg);
+        msg.addExtension(nick);
+        if (StringUtils.isNotEmpty(attachmentUrl)) {
+            try {
+                OobX oob = new OobX(new URI(attachmentUrl));
+                msg.addExtension(oob);
+            } catch (URISyntaxException e) {
+                logger.warn("uri exception", e);
+            }
+        }
+
+        for (User user : users) {
+            for (String jid : userService.getJIDsbyUID(user.getUid())) {
+                msg.setTo(Jid.of(jid));
+                s2s(ClientMessage.from(msg));
+            }
+        }
+    }
+
+    @Override
+    public void ProcessPingEvent(PingEvent pingEvent) {
+        userService.getJIDsbyUID(pingEvent.getPinger().getUid())
+                .forEach(userJid -> {
+                    Presence p = new Presence(Jid.of(userJid));
+                    p.setFrom(jid);
+                    p.setPriority((byte) 10);
+                    s2s(ClientPresence.from(p));
+                });
+    }
+
+    private void incomingPresence(Presence p) {
+        final String username = p.getTo().getLocal();
+        final boolean toJuick = username.equals(jid.getLocal());
+
+        if (p.getType() == null) {
+            Presence reply = new Presence();
+            reply.setFrom(p.getTo().asBareJid());
+            reply.setTo(p.getFrom().asBareJid());
+            reply.setType(Presence.Type.UNSUBSCRIBE);
+            s2s(ClientPresence.from(reply));
+        } else if (p.getType().equals(Presence.Type.PROBE)) {
+            int uid_to = 0;
+            if (!toJuick) {
+                uid_to = userService.getUIDbyName(username);
+            }
+
+            if (toJuick || uid_to > 0) {
+                Presence reply = new Presence();
+                reply.setFrom(p.getTo().withResource(jid.getResource()));
+                reply.setTo(p.getFrom());
+                reply.setPriority((byte)10);
+                if (!userService.getActiveJIDs().contains(p.getFrom().asBareJid().toEscapedString())) {
+                    reply.setStatus("Send ON to enable notifications");
+                }
+                s2s(ClientPresence.from(reply));
+            } else {
+                Presence reply = new Presence();
+                reply.setFrom(p.getTo());
+                reply.setTo(p.getFrom());
+                reply.setType(Presence.Type.ERROR);
+                reply.setId(p.getId());
+                reply.setError(new StanzaError(StanzaError.Type.CANCEL, Condition.ITEM_NOT_FOUND));
+                s2s(ClientPresence.from(reply));
+            }
+        } else if (p.getType().equals(Presence.Type.SUBSCRIBE)) {
+            boolean canSubscribe = false;
+            if (toJuick) {
+                canSubscribe = true;
+            } else {
+                int uid_to = userService.getUIDbyName(username);
+                if (uid_to > 0) {
+                    pmQueriesService.addPMinRoster(uid_to, p.getFrom().asBareJid().toEscapedString());
+                    canSubscribe = true;
+                }
+            }
+            if (canSubscribe) {
+                Presence reply = new Presence();
+                reply.setFrom(p.getTo());
+                reply.setTo(p.getFrom());
+                reply.setType(Presence.Type.SUBSCRIBED);
+                s2s(ClientPresence.from(reply));
+
+                reply.setFrom(reply.getFrom().withResource(jid.getResource()));
+                reply.setPriority((byte) 10);
+                reply.setType(null);
+                s2s(ClientPresence.from(reply));
+            } else {
+                Presence reply = new Presence();
+                reply.setFrom(p.getTo());
+                reply.setTo(p.getFrom());
+                reply.setType(Presence.Type.ERROR);
+                reply.setId(p.getId());
+                reply.setError(new StanzaError(StanzaError.Type.CANCEL, Condition.ITEM_NOT_FOUND));
+                s2s(ClientPresence.from(reply));
+            }
+        } else if (p.getType().equals(Presence.Type.UNSUBSCRIBE)) {
+            if (!toJuick) {
+                int uid_to = userService.getUIDbyName(username);
+                if (uid_to > 0) {
+                    pmQueriesService.removePMinRoster(uid_to, p.getFrom().asBareJid().toEscapedString());
+                }
+            }
+
+            Presence reply = new Presence();
+            reply.setFrom(p.getTo());
+            reply.setTo(p.getFrom());
+            reply.setType(Presence.Type.UNSUBSCRIBED);
+            s2s(ClientPresence.from(reply));
+        }
+    }
+
+    public void incomingMessage(Message msg) {
+        if (msg.getType() != null && msg.getType().equals(Message.Type.ERROR)) {
+            StanzaError error = msg.getError();
+            if (error != null && error.getCondition().equals(Condition.RESOURCE_CONSTRAINT)) {
+                // offline query is full, deactivating this jid
+                if (userService.setActiveStatusForJID(msg.getFrom().toEscapedString(), UserService.ActiveStatus.Inactive)) {
+                    logger.info("{} is inactive now", msg.getFrom());
+                    return;
+                }
+            }
+            return;
+        }
+        if (StringUtils.isBlank(msg.getBody())) {
+            return;
+        }
+        String username = msg.getTo().getLocal();
+
+        User user_from;
+        String signuphash = StringUtils.EMPTY;
+        user_from = userService.getUserByJID(msg.getFrom().asBareJid().toEscapedString());
+        if (user_from == null) {
+            signuphash = userService.getSignUpHashByJID(msg.getFrom().asBareJid().toEscapedString());
+        }
+
+        if (user_from == null) {
+            Message reply = new Message();
+            reply.setFrom(msg.getTo());
+            reply.setTo(msg.getFrom());
+            reply.setType(Message.Type.CHAT);
+            reply.setBody("Для того, чтобы начать пользоваться сервисом, пожалуйста пройдите быструю регистрацию: http://juick.com/signup?type=xmpp&hash=" + signuphash + "\nЕсли у вас уже есть учетная запись на Juick, вы сможете присоединить этот JabberID к ней.\n\nTo start using Juick, please sign up: http://juick.com/signup?type=xmpp&hash=" + signuphash + "\nIf you already have an account on Juick, you will be proposed to attach this JabberID to your existing account.");
+            s2s(ClientMessage.from(reply));
+            return;
+        }
+
+        if (username.equals(jid.getLocal())) {
+            try {
+                OobX oobX = msg.getExtension(OobX.class);
+                if (oobX != null) {
+                    incomingMessageJuick(user_from, msg.getFrom(), msg.getBody().trim(), oobX.getUri());
+                } else {
+                    incomingMessageJuick(user_from, msg.getFrom(), msg.getBody().trim(), null);
+                }
+            } catch (Exception e) {
+                return;
+            }
+        }
+
+        int uid_to = userService.getUIDbyName(username);
+
+        if (uid_to == 0) {
+            Message reply = new Message();
+            reply.setFrom(msg.getTo());
+            reply.setTo(msg.getFrom());
+            reply.setType(Message.Type.ERROR);
+            reply.setId(msg.getId());
+            reply.setError(new StanzaError(StanzaError.Type.CANCEL, Condition.ITEM_NOT_FOUND));
+            s2s(ClientMessage.from(reply));
+            return;
+        }
+
+        boolean success = false;
+        if (!userService.isInBLAny(uid_to, user_from.getUid())) {
+            success = pmQueriesService.createPM(user_from.getUid(), uid_to, msg.getBody());
+        }
+
+        if (success) {
+            com.juick.Message jmsg = new com.juick.Message();
+            jmsg.setUser(user_from);
+            jmsg.setTo(userService.getUserByUID(uid_to).get());
+            jmsg.setText(msg.getBody());
+            applicationEventPublisher.publishEvent(new MessageEvent(this, jmsg));
+        } else {
+            Message reply = new Message();
+            reply.setFrom(msg.getTo());
+            reply.setTo(msg.getFrom());
+            reply.setType(Message.Type.ERROR);
+            reply.setId(msg.getId());
+            reply.setError(new StanzaError(StanzaError.Type.CANCEL, Condition.NOT_ALLOWED));
+            s2s(ClientMessage.from(reply));
+        }
+
+        return;
+    }
+    public com.juick.Message incomingMessageJuick(User user_from, Jid from, String command, URI attachment) throws Exception {
+        int commandlen = command.length();
+
+        // COMPATIBILITY
+        if (commandlen > 7 && command.substring(0, 3).equalsIgnoreCase("PM ")) {
+            command = command.substring(3).trim();
+        }
+
+        Optional<CommandResult> result = commandsManager.processCommand(user_from, from, command, attachment);
+        if (result.isPresent()) {
+            sendReply(from, result.get().getText());
+            return result.get().getNewMessage();
+        } else {
+            // new message
+            List<Tag> tags = tagService.fromString(command, false);
+            String body = command.substring(TagUtils.toString(tags).length());
+            String attachmentType = StringUtils.isNotEmpty(attachment.toString()) ? attachment.toString().substring(attachment.toString().length() - 3) : null;
+            int mid = messagesService.createMessage(user_from.getUid(), body, attachmentType, tags);
+            subscriptionService.subscribeMessage(mid, user_from.getUid());
+            if (StringUtils.isNotEmpty(attachmentType)) {
+                String attachmentFName = attachment.getScheme().equals("juick") ? attachment.getHost()
+                        : HttpUtils.downloadImage(attachment.toURL(), tmpDir);
+                String fname = String.format("%d.%s", mid, attachmentType);
+                ImageUtils.saveImageWithPreviews(attachmentFName, fname, tmpDir, imgDir);
+            }
+            com.juick.Message msg = messagesService.getMessage(mid);
+            applicationEventPublisher.publishEvent(new MessageEvent(this, msg));
+            return msg;
+        }
+    }
+    public com.juick.Message processMessage(User visitor, String body, String attachmentName) throws Exception {
+        if (StringUtils.isNotEmpty(attachmentName)) {
+            URI httpUri = URI.create(attachmentName);
+            if (!httpUri.isAbsolute()) {
+                attachmentName = String.format("juick://%s", attachmentName);
+            }
+        }
+        return incomingMessageJuick(visitor, Jid.of(String.valueOf(visitor.getUid()), "uid.juick.com", "perl"), body, URI.create(attachmentName));
+    }
+
+    @Override
+    public void stanzaReceived(Stanza xmlValue) {
+        if (xmlValue instanceof Presence) {
+            Presence p = (Presence) xmlValue;
+            if (p.getType() == null || !p.getType().equals(Presence.Type.ERROR)) {
+                incomingPresence(p);
+            }
+        } else if (xmlValue instanceof Message) {
+            Message msg = (Message) xmlValue;
+            incomingMessage(msg);
+        } else if (xmlValue instanceof IQ) {
+            IQ iq = (IQ) xmlValue;
+            router.send(iq);
+        }
+    }
+
+    private void broadcastPresence(Presence.Type type) {
+        Presence presence = new Presence();
+        presence.setFrom(jid);
+        if (type != null) {
+            presence.setType(type);
+        }
+        userService.getActiveJIDs().forEach(j -> {
+            try {
+                presence.setTo(Jid.of(j));
+                s2s(ClientPresence.from(presence));
+            } catch (IllegalArgumentException ex) {
+                logger.warn("Invalid jid: {}", j, ex);
+            }
+        });
+    }
+
+    @PreDestroy
+    public void close() throws Exception {
+        broadcastPresence(Presence.Type.UNAVAILABLE);
+        if (router != null) {
+            router.close();
+        }
+    }
+
+    ExternalComponent getRouter() {
+        return router;
+    }
+}