xmpp: move to library project

8 files changed, 0 insertions, 704 deletions

diff --git a/juick-server/src/main/java/com/juick/server/xmpp/s2s/CacheEntry.java b/juick-server/src/main/java/com/juick/server/xmpp/s2s/CacheEntry.java
deleted file mode 100644
index 33e875bd..00000000
--- a/juick-server/src/main/java/com/juick/server/xmpp/s2s/CacheEntry.java
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * 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.xmpp.s2s;
-
-import rocks.xmpp.addr.Jid;
-
-import java.time.Instant;
-
-/**
- *
- * @author ugnich
- */
-public class CacheEntry {
-
-    public Jid hostname;
-    public Instant created;
-    public Instant updated;
-    public String xml;
-
-    public CacheEntry(Jid hostname, String xml) {
-        this.hostname = hostname;
-        this.created = this.updated =Instant.now();
-        this.xml = xml;
-    }
-}
diff --git a/juick-server/src/main/java/com/juick/server/xmpp/s2s/Connection.java b/juick-server/src/main/java/com/juick/server/xmpp/s2s/Connection.java
deleted file mode 100644
index 6bf61169..00000000
--- a/juick-server/src/main/java/com/juick/server/xmpp/s2s/Connection.java
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * 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.xmpp.s2s;
-
-import com.fasterxml.jackson.annotation.JsonIgnore;
-import com.juick.server.XMPPServer;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.xmlpull.v1.XmlPullParser;
-import org.xmlpull.v1.XmlPullParserException;
-import org.xmlpull.v1.XmlPullParserFactory;
-
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.io.OutputStreamWriter;
-import java.net.Socket;
-import java.nio.charset.StandardCharsets;
-import java.time.Instant;
-import java.util.UUID;
-
-/**
- *
- * @author ugnich
- */
-public class Connection {
-
-    protected static final Logger logger = LoggerFactory.getLogger(Connection.class);
-
-    public String streamID;
-    public Instant created;
-    public Instant updated;
-    public long bytesLocal = 0;
-    public long packetsLocal = 0;
-    XMPPServer xmpp;
-    private Socket socket;
-    public static final String NS_DB = "jabber:server:dialback";
-    public static final String NS_TLS = "urn:ietf:params:xml:ns:xmpp-tls";
-    public static final String NS_STREAM = "http://etherx.jabber.org/streams";
-    XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
-    XmlPullParser parser = factory.newPullParser();
-    OutputStreamWriter writer;
-    private boolean secured = false;
-
-
-
-    public Connection(XMPPServer xmpp) throws XmlPullParserException {
-        this.xmpp = xmpp;
-        created = updated = Instant.now();
-    }
-
-    public void logParser() {
-        if (streamID == null) {
-            return;
-        }
-        String tag = "IN: <" + parser.getName();
-        for (int i = 0; i < parser.getAttributeCount(); i++) {
-            tag += " " + parser.getAttributeName(i) + "=\"" + parser.getAttributeValue(i) + "\"";
-        }
-        tag += ">...</" + parser.getName() + ">\n";
-        logger.trace(tag);
-    }
-
-    public void sendStanza(String xml) {
-        if (streamID != null) {
-            logger.trace("OUT: {}\n", xml);
-        }
-        try {
-            writer.write(xml);
-            writer.flush();
-        } catch (IOException e) {
-            logger.error("send stanza failed", e);
-        }
-
-        updated = Instant.now();
-        bytesLocal += xml.length();
-        packetsLocal++;
-    }
-
-    public void closeConnection() {
-        if (streamID != null) {
-            logger.debug("closing stream {}", streamID);
-        }
-
-        try {
-            writer.write("</stream:stream>");
-        } catch (Exception e) {
-        }
-
-        try {
-            writer.close();
-        } catch (Exception e) {
-        }
-
-        try {
-            socket.close();
-        } catch (Exception e) {
-        }
-    }
-
-    public boolean isSecured() {
-        return secured;
-    }
-
-    public void setSecured(boolean secured) {
-        this.secured = secured;
-    }
-
-    public void restartParser() throws XmlPullParserException, IOException {
-        streamID = UUID.randomUUID().toString();
-        parser = factory.newPullParser();
-        parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
-        parser.setInput(new InputStreamReader(socket.getInputStream()));
-        writer = new OutputStreamWriter(socket.getOutputStream(), StandardCharsets.UTF_8);
-    }
-
-    @JsonIgnore
-    public Socket getSocket() {
-        return socket;
-    }
-
-    public void setSocket(Socket socket) {
-        this.socket = socket;
-    }
-}
diff --git a/juick-server/src/main/java/com/juick/server/xmpp/s2s/ConnectionIn.java b/juick-server/src/main/java/com/juick/server/xmpp/s2s/ConnectionIn.java
deleted file mode 100644
index 9ee81d4d..00000000
--- a/juick-server/src/main/java/com/juick/server/xmpp/s2s/ConnectionIn.java
+++ /dev/null
@@ -1,213 +0,0 @@
-/*
- * 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.xmpp.s2s;
-
-import com.juick.server.XMPPServer;
-import com.juick.xmpp.extensions.StreamError;
-import com.juick.xmpp.utils.XmlUtils;
-import org.apache.commons.lang3.StringUtils;
-import org.xmlpull.v1.XmlPullParser;
-import org.xmlpull.v1.XmlPullParserException;
-import rocks.xmpp.addr.Jid;
-
-import java.io.EOFException;
-import java.io.IOException;
-import java.net.Socket;
-import java.net.SocketException;
-import java.time.Instant;
-import java.util.Arrays;
-import java.util.List;
-import java.util.UUID;
-import java.util.concurrent.CopyOnWriteArrayList;
-
-/**
- * @author ugnich
- */
-public class ConnectionIn extends Connection implements Runnable {
-
-    final public List<Jid> from = new CopyOnWriteArrayList<>();
-    public Instant received;
-    public long packetsRemote = 0;
-    ConnectionListener listener;
-
-    public ConnectionIn(XMPPServer xmpp, Socket socket) throws XmlPullParserException, IOException {
-        super(xmpp);
-        this.setSocket(socket);
-        restartParser();
-    }
-
-    @Override
-    public void run() {
-        try {
-            parser.next(); // stream:stream
-            updateTsRemoteData();
-            if (!parser.getName().equals("stream")
-                    || !parser.getNamespace("stream").equals(NS_STREAM)) {
-//                    || !parser.getAttributeValue(null, "version").equals("1.0")
-//                    || !parser.getAttributeValue(null, "to").equals(Main.HOSTNAME)) {
-                throw new Exception(String.format("stream from %s invalid", getSocket().getRemoteSocketAddress()));
-            }
-            streamID = parser.getAttributeValue(null, "id");
-            if (streamID == null) {
-                streamID = UUID.randomUUID().toString();
-            }
-            boolean xmppversionnew = parser.getAttributeValue(null, "version") != null;
-            String from = parser.getAttributeValue(null, "from");
-
-            if (Arrays.asList(xmpp.bannedHosts).contains(from)) {
-                closeConnection();
-                return;
-            }
-            sendOpenStream(from, xmppversionnew);
-
-            while (parser.next() != XmlPullParser.END_DOCUMENT) {
-                updateTsRemoteData();
-                if (parser.getEventType() != XmlPullParser.START_TAG) {
-                    continue;
-                }
-                logParser();
-
-                packetsRemote++;
-
-                String tag = parser.getName();
-                if (tag.equals("result") && parser.getNamespace().equals(NS_DB)) {
-                    String dfrom = parser.getAttributeValue(null, "from");
-                    String to = parser.getAttributeValue(null, "to");
-                    logger.debug("stream from {} to {} {} asking for dialback", dfrom, to, streamID);
-                    if (dfrom.endsWith(xmpp.getJid().toEscapedString()) && (dfrom.equals(xmpp.getJid().toEscapedString())
-                            || dfrom.endsWith("." + xmpp.getJid()))) {
-                        logger.warn("stream from {} is invalid", dfrom);
-                        break;
-                    }
-                    if (to != null && to.equals(xmpp.getJid().toEscapedString())) {
-                        String dbKey = XmlUtils.getTagText(parser);
-                        updateTsRemoteData();
-                        xmpp.startDialback(Jid.of(dfrom), streamID, dbKey);
-                    } else {
-                        logger.warn("stream from " + dfrom + " " + streamID + " invalid to " + to);
-                        break;
-                    }
-                } else if (tag.equals("verify") && parser.getNamespace().equals(NS_DB)) {
-                    String vfrom = parser.getAttributeValue(null, "from");
-                    String vto = parser.getAttributeValue(null, "to");
-                    String vid = parser.getAttributeValue(null, "id");
-                    String vkey = XmlUtils.getTagText(parser);
-                    updateTsRemoteData();
-                    final boolean[] valid = {false};
-                    if (vfrom != null && vto != null && vid != null && vkey != null) {
-                        xmpp.getConnectionOut(Jid.of(vfrom), false).ifPresent(c -> {
-                            String dialbackKey = c.dbKey;
-                            valid[0] = vkey.equals(dialbackKey);
-                        });
-                    }
-                    if (valid[0]) {
-                        sendStanza("<db:verify from='" + vto + "' to='" + vfrom + "' id='" + vid + "' type='valid'/>");
-                        logger.debug("stream from {} {} dialback verify valid", vfrom, streamID);
-                    } else {
-                        sendStanza("<db:verify from='" + vto + "' to='" + vfrom + "' id='" + vid + "' type='invalid'/>");
-                        logger.warn("stream from {} {} dialback verify invalid", vfrom, streamID);
-                    }
-                } else if (tag.equals("presence") && checkFromTo(parser)) {
-                    String xml = XmlUtils.parseToString(parser, false);
-                    logger.debug("stream {} presence: {}", streamID, xml);
-                    xmpp.onStanzaReceived(xml);
-                } else if (tag.equals("message") && checkFromTo(parser)) {
-                    updateTsRemoteData();
-                    String xml = XmlUtils.parseToString(parser, false);
-                    logger.debug("stream {} message: {}", streamID, xml);
-                    xmpp.onStanzaReceived(xml);
-
-                } else if (tag.equals("iq") && checkFromTo(parser)) {
-                    updateTsRemoteData();
-                    String type = parser.getAttributeValue(null, "type");
-                    String xml = XmlUtils.parseToString(parser, false);
-                    if (type == null || !type.equals("error")) {
-                        logger.debug("stream {} iq: {}", streamID, xml);
-                        xmpp.onStanzaReceived(xml);
-                    }
-                } else if (!isSecured() && tag.equals("starttls")) {
-                    listener.starttls(this);
-                } else if (isSecured() && tag.equals("stream") && parser.getNamespace().equals(NS_STREAM)) {
-                    sendOpenStream(null, true);
-                } else if (tag.equals("error")) {
-                    StreamError streamError = StreamError.parse(parser);
-                    logger.debug("Stream error from {}: {}", streamID, streamError.getCondition());
-                    xmpp.removeConnectionIn(this);
-                    closeConnection();
-                } else {
-                    String unhandledStanza = XmlUtils.parseToString(parser, true);
-                    logger.warn("Unhandled stanza from {}: {}", streamID, unhandledStanza);
-                }
-            }
-            logger.warn("stream {} finished", streamID);
-            xmpp.removeConnectionIn(this);
-            closeConnection();
-        } catch (EOFException | SocketException ex) {
-            logger.debug("stream {} closed (dirty)", streamID);
-            xmpp.removeConnectionIn(this);
-            closeConnection();
-        } catch (Exception e) {
-            logger.debug("stream {} error {}", streamID, e);
-            xmpp.removeConnectionIn(this);
-            closeConnection();
-        }
-    }
-
-    void updateTsRemoteData() {
-        received = Instant.now();
-    }
-
-    void sendOpenStream(String from, boolean xmppversionnew) throws IOException {
-        String openStream = "<?xml version='1.0'?><stream:stream xmlns='jabber:server' " +
-                "xmlns:stream='http://etherx.jabber.org/streams' xmlns:db='jabber:server:dialback' from='" +
-                xmpp.getJid().toEscapedString() + "' id='" + streamID + "' version='1.0'>";
-        if (xmppversionnew) {
-            openStream += "<stream:features>";
-            if (listener != null && listener.isTlsAvailable() && !isSecured() && !Arrays.asList(xmpp.brokenSSLhosts).contains(from)) {
-                openStream += "<starttls xmlns=\"" + NS_TLS + "\"><optional/></starttls>";
-            }
-            openStream += "</stream:features>";
-        }
-        sendStanza(openStream);
-    }
-
-    public void sendDialbackResult(Jid sfrom, String type) {
-        sendStanza("<db:result from='" + xmpp.getJid().toEscapedString() + "' to='" + sfrom + "' type='" + type + "'/>");
-        if (type.equals("valid")) {
-            from.add(sfrom);
-            logger.debug("stream from {} {} ready", sfrom, streamID);
-        }
-    }
-
-    boolean checkFromTo(XmlPullParser parser) throws Exception {
-        String cfrom = parser.getAttributeValue(null, "from");
-        String cto = parser.getAttributeValue(null, "to");
-        if (StringUtils.isNotEmpty(cfrom) && StringUtils.isNotEmpty(cto)) {
-            Jid jidfrom = Jid.of(cfrom);
-            for (Jid aFrom : from) {
-                if (aFrom.equals(Jid.of(jidfrom.getDomain()))) {
-                    return true;
-                }
-            }
-        }
-        return false;
-    }
-    public void setListener(ConnectionListener listener) {
-        this.listener = listener;
-    }
-}
diff --git a/juick-server/src/main/java/com/juick/server/xmpp/s2s/ConnectionListener.java b/juick-server/src/main/java/com/juick/server/xmpp/s2s/ConnectionListener.java
deleted file mode 100644
index fde7a0e7..00000000
--- a/juick-server/src/main/java/com/juick/server/xmpp/s2s/ConnectionListener.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.juick.server.xmpp.s2s;
-
-import com.juick.xmpp.extensions.StreamError;
-
-public interface ConnectionListener {
-    boolean isTlsAvailable();
-    void starttls(ConnectionIn connection);
-    void proceed(ConnectionOut connection);
-    void verify(ConnectionOut connection, String from, String type, String sid);
-    void dialbackError(ConnectionOut connection, StreamError error);
-    void finished(ConnectionOut connection, boolean dirty);
-    void exception(ConnectionOut connection, Exception ex);
-    void ready(ConnectionOut connection);
-    boolean securing(ConnectionOut connection);
-}
diff --git a/juick-server/src/main/java/com/juick/server/xmpp/s2s/ConnectionOut.java b/juick-server/src/main/java/com/juick/server/xmpp/s2s/ConnectionOut.java
deleted file mode 100644
index e3bd53e9..00000000
--- a/juick-server/src/main/java/com/juick/server/xmpp/s2s/ConnectionOut.java
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * 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.xmpp.s2s;
-
-import com.juick.server.xmpp.s2s.util.DialbackUtils;
-import com.juick.xmpp.Stream;
-import com.juick.xmpp.extensions.StreamError;
-import com.juick.xmpp.extensions.StreamFeatures;
-import com.juick.xmpp.utils.XmlUtils;
-import org.apache.commons.text.RandomStringGenerator;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.xmlpull.v1.XmlPullParser;
-import rocks.xmpp.addr.Jid;
-
-import java.io.EOFException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.net.SocketException;
-import java.util.UUID;
-
-/**
- * @author ugnich
- */
-public class ConnectionOut extends Stream {
-    protected static final Logger logger = LoggerFactory.getLogger(ConnectionOut.class);
-    public static final String NS_TLS = "urn:ietf:params:xml:ns:xmpp-tls";
-    public static final String NS_DB = "jabber:server:dialback";
-    private boolean secured = false;
-
-    public boolean streamReady = false;
-    String checkSID = null;
-    String dbKey = null;
-    private String streamID;
-    ConnectionListener listener;
-    RandomStringGenerator generator = new RandomStringGenerator.Builder().withinRange('a', 'z').build();
-
-    public ConnectionOut(Jid from, Jid to, InputStream is, OutputStream os, String checkSID, String dbKey) throws Exception {
-        super(from, to, is, os);
-        this.to = to;
-        this.checkSID = checkSID;
-        this.dbKey = dbKey;
-        if (dbKey == null) {
-            this.dbKey = DialbackUtils.generateDialbackKey(generator.generate(15), to, from, streamID);
-        }
-        streamID = UUID.randomUUID().toString();
-    }
-
-    public void sendOpenStream() throws IOException {
-        send("<?xml version='1.0'?><stream:stream xmlns='jabber:server' id='" + streamID +
-                "' xmlns:stream='http://etherx.jabber.org/streams' xmlns:db='jabber:server:dialback' from='" +
-                from.toEscapedString()  + "' to='" + to.toEscapedString() + "' version='1.0'>");
-    }
-
-    void processDialback() throws Exception {
-        if (checkSID != null) {
-            sendDialbackVerify(checkSID, dbKey);
-        }
-        send("<db:result from='" + from.toEscapedString() + "' to='" + to.toEscapedString() + "'>" +
-                 dbKey + "</db:result>");
-    }
-
-    @Override
-    public void handshake() {
-        try {
-            restartStream();
-
-            sendOpenStream();
-
-            parser.next(); // stream:stream
-            streamID = parser.getAttributeValue(null, "id");
-            if (streamID == null || streamID.isEmpty()) {
-                throw new Exception("stream to " + to + " invalid first packet");
-            }
-
-            logger.debug("stream to {} {} open", to, streamID);
-            boolean xmppversionnew = parser.getAttributeValue(null, "version") != null;
-            if (!xmppversionnew) {
-                processDialback();
-            }
-
-            while (parser.next() != XmlPullParser.END_DOCUMENT) {
-                if (parser.getEventType() != XmlPullParser.START_TAG) {
-                    continue;
-                }
-
-                String tag = parser.getName();
-                if (tag.equals("result") && parser.getNamespace().equals(NS_DB)) {
-                    String type = parser.getAttributeValue(null, "type");
-                    if (type != null && type.equals("valid")) {
-                        streamReady = true;
-                        listener.ready(this);
-                    } else {
-                        logger.warn("stream to {} {} dialback fail", to, streamID);
-                    }
-                    XmlUtils.skip(parser);
-                } else if (tag.equals("verify") && parser.getNamespace().equals(NS_DB)) {
-                    String from = parser.getAttributeValue(null, "from");
-                    String type = parser.getAttributeValue(null, "type");
-                    String sid = parser.getAttributeValue(null, "id");
-                    listener.verify(this, from, type, sid);
-                    XmlUtils.skip(parser);
-                } else if (tag.equals("features") && parser.getNamespace().equals(NS_STREAM)) {
-                    StreamFeatures features = StreamFeatures.parse(parser);
-                    if (listener != null && !secured && features.STARTTLS >= 0
-                            && listener.securing(this)) {
-                        logger.debug("stream to {} {} securing", to.toEscapedString(), streamID);
-                        send("<starttls xmlns=\"" + NS_TLS + "\" />");
-                    } else {
-                        processDialback();
-                    }
-                } else if (tag.equals("proceed") && parser.getNamespace().equals(NS_TLS)) {
-                    listener.proceed(this);
-                } else if (secured && tag.equals("stream") && parser.getNamespace().equals(NS_STREAM)) {
-                    streamID = parser.getAttributeValue(null, "id");
-                } else if (tag.equals("error")) {
-                    StreamError streamError = StreamError.parse(parser);
-                    listener.dialbackError(this, streamError);
-                } else {
-                    String unhandledStanza = XmlUtils.parseToString(parser, true);
-                    logger.warn("Unhandled stanza from {} {} : {}", to, streamID, unhandledStanza);
-                }
-            }
-            listener.finished(this, false);
-        } catch (EOFException | SocketException eofex) {
-            listener.finished(this, true);
-        } catch (Exception e) {
-            listener.exception(this, e);
-        }
-    }
-
-    public void sendDialbackVerify(String sid, String key) {
-        send("<db:verify from='" + from.toEscapedString() + "' to='" + to + "' id='" + sid + "'>" +
-                key + "</db:verify>");
-    }
-    public void setListener(ConnectionListener listener) {
-        this.listener = listener;
-    }
-
-    public String getStreamID() {
-        return streamID;
-    }
-
-    public boolean isSecured() {
-        return secured;
-    }
-
-    public void setSecured(boolean secured) {
-        this.secured = secured;
-    }
-}
diff --git a/juick-server/src/main/java/com/juick/server/xmpp/s2s/DNSQueries.java b/juick-server/src/main/java/com/juick/server/xmpp/s2s/DNSQueries.java
deleted file mode 100644
index 1367d333..00000000
--- a/juick-server/src/main/java/com/juick/server/xmpp/s2s/DNSQueries.java
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * 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.xmpp.s2s;
-
-import org.apache.commons.lang3.math.NumberUtils;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.net.InetSocketAddress;
-import java.util.Hashtable;
-import java.util.Random;
-import javax.naming.NamingException;
-import javax.naming.directory.Attribute;
-import javax.naming.directory.DirContext;
-import javax.naming.directory.InitialDirContext;
-
-/**
- *
- * @author ugnich
- */
-public class DNSQueries {
-
-    private static final Logger logger = LoggerFactory.getLogger(DNSQueries.class);
-
-    private static Random rand = new Random();
-
-    public static InetSocketAddress getServerAddress(String hostname) {
-
-        String host = hostname;
-        int port = 5269;
-
-        Hashtable<String, String> env = new Hashtable<>(5);
-        env.put("java.naming.factory.initial", "com.sun.jndi.dns.DnsContextFactory");
-        try {
-            DirContext ctx = new InitialDirContext(env);
-            Attribute att = ctx.getAttributes("_xmpp-server._tcp." + hostname, new String[]{"SRV"}).get("SRV");
-
-            if (att != null && att.size() > 0) {
-                int i = rand.nextInt(att.size());
-                String srv[] = att.get(i).toString().split(" ");
-                port = NumberUtils.toInt(srv[2], 5269);
-                host = srv[3];
-            }
-            ctx.close();
-        } catch (NamingException e) {
-            logger.debug("SRV record for {} is not resolved, falling back to A record", hostname);
-        }
-        return new InetSocketAddress(host, port);
-    }
-}
diff --git a/juick-server/src/main/java/com/juick/server/xmpp/s2s/StanzaListener.java b/juick-server/src/main/java/com/juick/server/xmpp/s2s/StanzaListener.java
deleted file mode 100644
index 6932298f..00000000
--- a/juick-server/src/main/java/com/juick/server/xmpp/s2s/StanzaListener.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * 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.xmpp.s2s;
-
-
-import rocks.xmpp.core.stanza.model.Stanza;
-
-/**
- * Created by vitalyster on 07.12.2016.
- */
-public interface StanzaListener {
-    void stanzaReceived(Stanza xmlValue);
-}
diff --git a/juick-server/src/main/java/com/juick/server/xmpp/s2s/util/DialbackUtils.java b/juick-server/src/main/java/com/juick/server/xmpp/s2s/util/DialbackUtils.java
deleted file mode 100644
index d25dbad8..00000000
--- a/juick-server/src/main/java/com/juick/server/xmpp/s2s/util/DialbackUtils.java
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * 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.xmpp.s2s.util;
-
-import org.apache.commons.codec.digest.DigestUtils;
-import org.apache.commons.codec.digest.HmacAlgorithms;
-import org.apache.commons.codec.digest.HmacUtils;
-import rocks.xmpp.addr.Jid;
-
-/**
- * Created by vitalyster on 05.12.2016.
- */
-public class DialbackUtils {
-    private DialbackUtils() {
-        throw new IllegalStateException();
-    }
-
-    public static String generateDialbackKey(String secret, Jid to, Jid from, String id) {
-        return new HmacUtils(HmacAlgorithms.HMAC_SHA_256, DigestUtils.sha256(secret))
-                .hmacHex(to.toEscapedString() + " " + from.toEscapedString() + " " + id);
-    }
-}