Merge everything into single Spring Boot application

10 files changed, 854 insertions, 0 deletions

diff --git a/src/main/java/com/juick/server/xmpp/router/Handshake.java b/src/main/java/com/juick/server/xmpp/router/Handshake.java
new file mode 100644
index 00000000..0bc501dd
--- /dev/null
+++ b/src/main/java/com/juick/server/xmpp/router/Handshake.java
@@ -0,0 +1,39 @@
+package com.juick.server.xmpp.router;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.IOException;
+
+/**
+ * Created by vitalyster on 30.01.2017.
+ */
+public class Handshake {
+    private String value;
+
+    public static Handshake parse(XmlPullParser parser) throws IOException, XmlPullParserException {
+        parser.next();
+        Handshake handshake = new Handshake();
+        handshake.setValue(XmlUtils.getTagText(parser));
+        return handshake;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    public void setValue(String value) {
+        this.value = value;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder str = new StringBuilder("<handshake");
+        if (getValue() != null) {
+            str.append(">").append(getValue()).append("</handshake>");
+        } else {
+            str.append("/>");
+        }
+        return str.toString();
+    }
+}
diff --git a/src/main/java/com/juick/server/xmpp/router/Stream.java b/src/main/java/com/juick/server/xmpp/router/Stream.java
new file mode 100644
index 00000000..2154edf6
--- /dev/null
+++ b/src/main/java/com/juick/server/xmpp/router/Stream.java
@@ -0,0 +1,202 @@
+/*
+ * Juick
+ * Copyright (C) 2008-2011, Ugnich Anton
+ *
+ * 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.router;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+import org.xmlpull.v1.XmlPullParserFactory;
+import rocks.xmpp.addr.Jid;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.nio.charset.StandardCharsets;
+import java.time.Instant;
+import java.util.UUID;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public abstract class Stream {
+
+    public boolean isLoggedIn() {
+        return loggedIn;
+    }
+
+    public void setLoggedIn(boolean loggedIn) {
+        this.loggedIn = loggedIn;
+    }
+
+    public Jid from;
+    public Jid to;
+    private InputStream is;
+    private OutputStream os;
+    private XmlPullParserFactory factory;
+    protected XmlPullParser parser;
+    private OutputStreamWriter writer;
+    StreamHandler streamHandler;
+    private boolean loggedIn;
+    private Instant created;
+    private Instant updated;
+    String streamId;
+    private boolean secured;
+
+    public Stream(final Jid from, final Jid to, final InputStream is, final OutputStream os) throws XmlPullParserException {
+        this.from = from;
+        this.to = to;
+        this.is = is;
+        this.os = os;
+        factory = XmlPullParserFactory.newInstance();
+        created = updated = Instant.now();
+        streamId = UUID.randomUUID().toString();
+    }
+
+    public void restartStream() throws XmlPullParserException {
+        parser = factory.newPullParser();
+        parser.setInput(new InputStreamReader(is, StandardCharsets.UTF_8));
+        parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
+        writer = new OutputStreamWriter(os, StandardCharsets.UTF_8);
+    }
+
+    public void connect() {
+        try {
+            restartStream();
+            handshake();
+            parse();
+        } catch (XmlPullParserException e) {
+            StreamError invalidXmlError = new StreamError("invalid-xml");
+            send(invalidXmlError.toString());
+            connectionFailed(new Exception(invalidXmlError.getCondition()));
+        } catch (IOException e) {
+            connectionFailed(e);
+        }
+    }
+
+    public void setHandler(final StreamHandler streamHandler) {
+        this.streamHandler = streamHandler;
+    }
+
+    public abstract void handshake() throws XmlPullParserException, IOException;
+
+    public void logoff() {
+        setLoggedIn(false);
+        try {
+            writer.flush();
+            writer.close();
+            //TODO close parser
+        } catch (final Exception e) {
+            connectionFailed(e);
+        }
+    }
+
+    public void send(final String str) {
+        try {
+            updated = Instant.now();
+            writer.write(str);
+            writer.flush();
+        } catch (final Exception e) {
+            connectionFailed(e);
+        }
+    }
+
+    private void parse() throws IOException, XmlPullParserException {
+        while (parser.next() != XmlPullParser.END_DOCUMENT) {
+            if (parser.getEventType() == XmlPullParser.IGNORABLE_WHITESPACE) {
+                setUpdated();
+            }
+            if (parser.getEventType() != XmlPullParser.START_TAG) {
+                continue;
+            }
+            setUpdated();
+            final String tag = parser.getName();
+            switch (tag) {
+                case "message":
+                case "presence":
+                case "iq":
+                    streamHandler.stanzaReceived(XmlUtils.parseToString(parser, false));
+                    break;
+                case "error":
+                    StreamError error = StreamError.parse(parser);
+                    connectionFailed(new Exception(error.getCondition()));
+                    return;
+                default:
+                    XmlUtils.skip(parser);
+                    break;
+            }
+        }
+    }
+
+    /**
+     * This method is used to be called on a parser or a connection error.
+     * It tries to close the XML-Reader and XML-Writer one last time.
+     */
+    private void connectionFailed(final Exception ex) {
+        if (isLoggedIn()) {
+            try {
+                writer.close();
+                //TODO close parser
+            } catch (Exception e) {
+            }
+        }
+        if (streamHandler != null) {
+            streamHandler.fail(ex);
+        }
+    }
+
+    public Instant getCreated() {
+        return created;
+    }
+
+    public Instant getUpdated() {
+        return updated;
+    }
+    public String getStreamId() {
+        return streamId;
+    }
+
+    public boolean isSecured() {
+        return secured;
+    }
+
+    public void setSecured(boolean secured) {
+        this.secured = secured;
+    }
+
+    public void setUpdated() {
+        this.updated = Instant.now();
+    }
+
+    public InputStream getInputStream() {
+        return is;
+    }
+
+    public void setInputStream(InputStream is) {
+        this.is = is;
+    }
+
+    public OutputStream getOutputStream() {
+        return os;
+    }
+
+    public void setOutputStream(OutputStream os) {
+        this.os = os;
+    }
+}
diff --git a/src/main/java/com/juick/server/xmpp/router/StreamComponentServer.java b/src/main/java/com/juick/server/xmpp/router/StreamComponentServer.java
new file mode 100644
index 00000000..a58adfc5
--- /dev/null
+++ b/src/main/java/com/juick/server/xmpp/router/StreamComponentServer.java
@@ -0,0 +1,57 @@
+package com.juick.server.xmpp.router;
+
+import org.apache.commons.codec.digest.DigestUtils;
+import org.xmlpull.v1.XmlPullParserException;
+import rocks.xmpp.addr.Jid;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.UUID;
+
+/**
+ * Created by vitalyster on 30.01.2017.
+ */
+public class StreamComponentServer extends Stream {
+
+    private String streamId, secret;
+
+    public String getStreamId() {
+        return streamId;
+    }
+
+
+    public StreamComponentServer(InputStream is, OutputStream os, String password) throws XmlPullParserException {
+        super(null, null, is, os);
+        secret = password;
+        streamId = UUID.randomUUID().toString();
+    }
+    @Override
+    public void handshake() throws XmlPullParserException, IOException {
+        parser.next();
+        if (!parser.getName().equals("stream")
+                || !parser.getNamespace(null).equals(StreamNamespaces.NS_COMPONENT_ACCEPT)
+                || !parser.getNamespace("stream").equals(StreamNamespaces.NS_STREAM)) {
+            throw new IOException("invalid stream");
+        }
+        Jid domain = Jid.of(parser.getAttributeValue(null, "to"));
+        if (streamHandler.filter(null, domain)) {
+            send(new XMPPError(XMPPError.Type.cancel, "forbidden").toString());
+            throw new IOException("invalid domain");
+        }
+        from = domain;
+        to = domain;
+        send(String.format("<stream:stream xmlns:stream='%s' " +
+                "xmlns='%s' from='%s' id='%s'>", StreamNamespaces.NS_STREAM, StreamNamespaces.NS_COMPONENT_ACCEPT, from.asBareJid().toEscapedString(), streamId));
+        Handshake handshake = Handshake.parse(parser);
+        boolean authenticated = handshake.getValue().equals(DigestUtils.sha1Hex(streamId + secret));
+        setLoggedIn(authenticated);
+        if (!authenticated) {
+            send(new XMPPError(XMPPError.Type.cancel, "not-authorized").toString());
+            streamHandler.fail(new IOException("stream:stream, failed authentication"));
+            return;
+        }
+        send(new Handshake().toString());
+        streamHandler.ready(this);
+    }
+}
diff --git a/src/main/java/com/juick/server/xmpp/router/StreamError.java b/src/main/java/com/juick/server/xmpp/router/StreamError.java
new file mode 100644
index 00000000..f731f039
--- /dev/null
+++ b/src/main/java/com/juick/server/xmpp/router/StreamError.java
@@ -0,0 +1,57 @@
+package com.juick.server.xmpp.router;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.IOException;
+
+
+/**
+ * Created by vitalyster on 03.02.2017.
+ */
+public class StreamError {
+
+    private String condition;
+    private String text;
+
+    public StreamError() {}
+
+    public StreamError(String condition) {
+        this.condition = condition;
+    }
+
+    public static StreamError parse(XmlPullParser parser) throws IOException, XmlPullParserException {
+        StreamError streamError = new StreamError();
+        final int initial = parser.getDepth();
+        while (true) {
+            int eventType = parser.next();
+            if (eventType == XmlPullParser.START_TAG && parser.getDepth() == initial + 1) {
+                final String tag = parser.getName();
+                final String xmlns = parser.getNamespace();
+                if (tag.equals("text") && xmlns.equals(StreamNamespaces.NS_XMPP_STREAMS)) {
+                    streamError.text = XmlUtils.getTagText(parser);
+                } else if (xmlns.equals(StreamNamespaces.NS_XMPP_STREAMS)) {
+                    streamError.condition = tag;
+                } else {
+                    XmlUtils.skip(parser);
+                }
+            } else if (eventType == XmlPullParser.END_TAG && parser.getDepth() == initial) {
+                break;
+            }
+        }
+        return streamError;
+    }
+
+    public String getCondition() {
+        return condition;
+    }
+
+    @Override
+    public String toString() {
+        return String.format("<stream:error><%s xmlns='%s'/></stream:error>", condition, StreamNamespaces.NS_XMPP_STREAMS);
+    }
+
+    public String getText() {
+        return text;
+    }
+}
diff --git a/src/main/java/com/juick/server/xmpp/router/StreamFeatures.java b/src/main/java/com/juick/server/xmpp/router/StreamFeatures.java
new file mode 100644
index 00000000..e8fc324f
--- /dev/null
+++ b/src/main/java/com/juick/server/xmpp/router/StreamFeatures.java
@@ -0,0 +1,95 @@
+/*
+ * Juick
+ * Copyright (C) 2008-2013, Ugnich Anton
+ *
+ * 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.router;
+
+import java.io.IOException;
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class StreamFeatures {
+
+    public static final int NOTAVAILABLE = -1;
+    public static final int AVAILABLE = 0;
+    public static final int REQUIRED = 1;
+    public int STARTTLS = NOTAVAILABLE;
+    public int ZLIB = NOTAVAILABLE;
+    public int PLAIN = NOTAVAILABLE;
+    public int DIGEST_MD5 = NOTAVAILABLE;
+    public int REGISTER = NOTAVAILABLE;
+    public int EXTERNAL = NOTAVAILABLE;
+
+    public static StreamFeatures parse(final XmlPullParser parser) throws XmlPullParserException, IOException {
+        StreamFeatures features = new StreamFeatures();
+        final int initial = parser.getDepth();
+        while (true) {
+            int eventType = parser.next();
+            if (eventType == XmlPullParser.START_TAG && parser.getDepth() == initial + 1) {
+                final String tag = parser.getName();
+                final String xmlns = parser.getNamespace();
+                if (tag.equals("starttls") && xmlns != null && xmlns.equals("urn:ietf:params:xml:ns:xmpp-tls")) {
+                    features.STARTTLS = AVAILABLE;
+                    while (parser.next() == XmlPullParser.START_TAG) {
+                        if (parser.getName().equals("required")) {
+                            features.STARTTLS = REQUIRED;
+                        } else {
+                            XmlUtils.skip(parser);
+                        }
+                    }
+                } else if (tag.equals("compression") && xmlns != null && xmlns.equals("http://jabber.org/features/compress")) {
+                    while (parser.next() == XmlPullParser.START_TAG) {
+                        if (parser.getName().equals("method")) {
+                            final String method = XmlUtils.getTagText(parser).toUpperCase();
+                            if (method.equals("ZLIB")) {
+                                features.ZLIB = AVAILABLE;
+                            }
+                        } else {
+                            XmlUtils.skip(parser);
+                        }
+                    }
+                } else if (tag.equals("mechanisms") && xmlns != null && xmlns.equals("urn:ietf:params:xml:ns:xmpp-sasl")) {
+                    while (parser.next() == XmlPullParser.START_TAG) {
+                        if (parser.getName().equals("mechanism")) {
+                            final String mechanism = XmlUtils.getTagText(parser).toUpperCase();
+                            if (mechanism.equals("PLAIN")) {
+                                features.PLAIN = AVAILABLE;
+                            } else if (mechanism.equals("DIGEST-MD5")) {
+                                features.DIGEST_MD5 = AVAILABLE;
+                            } else if (mechanism.equals("EXTERNAL")) {
+                                features.EXTERNAL = AVAILABLE;
+                            }
+                        } else {
+                            XmlUtils.skip(parser);
+                        }
+                    }
+                } else if (tag.equals("register") && xmlns != null && xmlns.equals("http://jabber.org/features/iq-register")) {
+                    features.REGISTER = AVAILABLE;
+                    XmlUtils.skip(parser);
+                } else {
+                    XmlUtils.skip(parser);
+                }
+            } else if (eventType == XmlPullParser.END_TAG && parser.getDepth() == initial) {
+                break;
+            }
+        }
+        return features;
+    }
+}
diff --git a/src/main/java/com/juick/server/xmpp/router/StreamHandler.java b/src/main/java/com/juick/server/xmpp/router/StreamHandler.java
new file mode 100644
index 00000000..048c61ec
--- /dev/null
+++ b/src/main/java/com/juick/server/xmpp/router/StreamHandler.java
@@ -0,0 +1,13 @@
+package com.juick.server.xmpp.router;
+
+import rocks.xmpp.addr.Jid;
+
+/**
+ * Created by vitalyster on 01.02.2017.
+ */
+public interface StreamHandler {
+    void ready(StreamComponentServer componentServer);
+    void fail(final Exception ex);
+    boolean filter(Jid from, Jid to);
+    void stanzaReceived(String stanza);
+}
diff --git a/src/main/java/com/juick/server/xmpp/router/StreamNamespaces.java b/src/main/java/com/juick/server/xmpp/router/StreamNamespaces.java
new file mode 100644
index 00000000..1b9b1965
--- /dev/null
+++ b/src/main/java/com/juick/server/xmpp/router/StreamNamespaces.java
@@ -0,0 +1,10 @@
+package com.juick.server.xmpp.router;
+
+public class StreamNamespaces {
+    public static final String NS_STREAM = "http://etherx.jabber.org/streams";
+    public static final String NS_TLS = "urn:ietf:params:xml:ns:xmpp-tls";
+    public static final String NS_DB = "jabber:server:dialback";
+    public static final String NS_SERVER = "jabber:server";
+    public static final String NS_COMPONENT_ACCEPT = "jabber:component:accept";
+    public static final String NS_XMPP_STREAMS = "urn:ietf:params:xml:ns:xmpp-streams";
+}
diff --git a/src/main/java/com/juick/server/xmpp/router/XMPPError.java b/src/main/java/com/juick/server/xmpp/router/XMPPError.java
new file mode 100644
index 00000000..0cf9a3bc
--- /dev/null
+++ b/src/main/java/com/juick/server/xmpp/router/XMPPError.java
@@ -0,0 +1,73 @@
+/*
+ * Juick
+ * Copyright (C) 2008-2013, ugnich
+ *
+ * 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.router;
+
+import org.apache.commons.text.StringEscapeUtils;
+
+/**
+ *
+ * @author ugnich
+ */
+public class XMPPError {
+
+    public static final class Type {
+
+        public static final String auth = "auth";
+        public static final String cancel = "cancel";
+        public static final String continue_ = "continue";
+        public static final String modify = "modify";
+        public static final String wait = "wait";
+    }
+    private final static String TagName = "error";
+    public String by = null;
+    private String type;
+    private String condition;
+    private String text = null;
+
+    public XMPPError(String type, String condition) {
+        this.type = type;
+        this.condition = condition;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder str = new StringBuilder("<").append(TagName).append("");
+        if (by != null) {
+            str.append(" by=\"").append(StringEscapeUtils.escapeXml10(by)).append("\"");
+        }
+        if (type != null) {
+            str.append(" type=\"").append(StringEscapeUtils.escapeXml10(type)).append("\"");
+        }
+
+        if (condition != null) {
+            str.append(">");
+            str.append("<").append(StringEscapeUtils.escapeXml10(condition)).append(" xmlns=\"urn:ietf:params:xml:ns:xmpp-stanzas\"");
+            if (text != null) {
+                str.append(">").append(StringEscapeUtils.escapeXml10(text)).append("</").append(StringEscapeUtils.escapeXml10(condition))
+                    .append(">");
+            } else {
+                str.append("/>");
+            }
+            str.append("</").append(TagName).append(">");
+        } else {
+            str.append("/>");
+        }
+
+        return str.toString();
+    }
+}
diff --git a/src/main/java/com/juick/server/xmpp/router/XMPPRouter.java b/src/main/java/com/juick/server/xmpp/router/XMPPRouter.java
new file mode 100644
index 00000000..6d67fa9c
--- /dev/null
+++ b/src/main/java/com/juick/server/xmpp/router/XMPPRouter.java
@@ -0,0 +1,220 @@
+package com.juick.server.xmpp.router;
+
+import com.juick.server.XMPPServer;
+import com.juick.server.xmpp.s2s.BasicXmppSession;
+import com.juick.server.xmpp.s2s.CacheEntry;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+import org.xmlpull.v1.XmlPullParserException;
+import rocks.xmpp.addr.Jid;
+import rocks.xmpp.core.stanza.model.IQ;
+import rocks.xmpp.core.stanza.model.Message;
+import rocks.xmpp.core.stanza.model.Presence;
+import rocks.xmpp.core.stanza.model.Stanza;
+import rocks.xmpp.core.stanza.model.server.ServerIQ;
+import rocks.xmpp.core.stanza.model.server.ServerMessage;
+import rocks.xmpp.core.stanza.model.server.ServerPresence;
+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.bind.Unmarshaller;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamWriter;
+import java.io.IOException;
+import java.io.StringReader;
+import java.io.StringWriter;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.net.SocketException;
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.ExecutorService;
+
+public class XMPPRouter implements StreamHandler {
+    private static final Logger logger = LoggerFactory.getLogger("com.juick.server.xmpp");
+
+    @Inject
+    private ExecutorService service;
+
+    private final List<StreamComponentServer> connections = Collections.synchronizedList(new ArrayList<>());
+    private final List<CacheEntry> outCache = new CopyOnWriteArrayList<>();
+
+    private ServerSocket listener;
+
+    @Inject
+    private BasicXmppSession session;
+
+    @Value("${router_port:5347}")
+    private int routerPort;
+
+    @Inject
+    private XMPPServer xmppServer;
+
+    @PostConstruct
+    public void init() {
+        logger.info("component router initialized");
+        service.submit(() -> {
+            try {
+                listener = new ServerSocket(routerPort);
+                logger.info("component router listening on {}", routerPort);
+                while (!listener.isClosed()) {
+                    if (Thread.currentThread().isInterrupted()) break;
+                    Socket socket = listener.accept();
+                    service.submit(() -> {
+                        try {
+                            StreamComponentServer client = new StreamComponentServer(socket.getInputStream(), socket.getOutputStream(), "secret");
+                            addConnectionIn(client);
+                            client.setHandler(this);
+                            client.connect();
+                        } catch (IOException e) {
+                            logger.error("component error", e);
+                        } catch (XmlPullParserException e) {
+                            e.printStackTrace();
+                        }
+                    });
+                }
+            } catch (SocketException e) {
+                // shutdown
+            } catch (IOException e) {
+                logger.warn("io exception", e);
+            }
+        });
+    }
+
+    @PreDestroy
+    public void close() throws Exception {
+        if (!listener.isClosed()) {
+            listener.close();
+        }
+        synchronized (getConnections()) {
+            for (Iterator<StreamComponentServer> i = getConnections().iterator(); i.hasNext(); ) {
+                StreamComponentServer c = i.next();
+                c.logoff();
+                i.remove();
+            }
+        }
+        service.shutdown();
+        logger.info("XMPP router destroyed");
+    }
+
+    private void addConnectionIn(StreamComponentServer c) {
+        synchronized (getConnections()) {
+            getConnections().add(c);
+        }
+    }
+
+    private void sendOut(Stanza s) {
+        try {
+            StringWriter stanzaWriter = new StringWriter();
+            XMLStreamWriter xmppStreamWriter = XmppUtils.createXmppStreamWriter(
+                    session.getConfiguration().getXmlOutputFactory().createXMLStreamWriter(stanzaWriter));
+            session.createMarshaller().marshal(s, xmppStreamWriter);
+            xmppStreamWriter.flush();
+            xmppStreamWriter.close();
+            String xml = stanzaWriter.toString();
+            logger.info("XMPPRouter (out): {}", xml);
+            sendOut(s.getTo().getDomain(), xml);
+        } catch (XMLStreamException | JAXBException e1) {
+            logger.info("jaxb exception", e1);
+        }
+    }
+
+    private void sendOut(String hostname, String xml) {
+        boolean haveAnyConn = false;
+
+        StreamComponentServer connOut = null;
+        synchronized (getConnections()) {
+            for (StreamComponentServer c : getConnections()) {
+                if (c.to != null && c.to.getDomain().equals(hostname)) {
+                    if (c.isLoggedIn()) {
+                        connOut = c;
+                        break;
+                    } else {
+                        logger.info("bouncing stanza to {} component until it will be ready", hostname);
+                        boolean haveCache = false;
+                        for (CacheEntry entry : outCache) {
+                            if (entry.hostname != null && entry.hostname.equals(hostname)) {
+                                entry.xml += xml;
+                                entry.updated = Instant.now();
+                                haveCache = true;
+                                break;
+                            }
+                        }
+                        if (!haveCache) {
+                            outCache.add(new CacheEntry(Jid.of(hostname), xml));
+                        }
+                    }
+                }
+            }
+        }
+        if (connOut != null) {
+            connOut.send(xml);
+            return;
+        }
+        xmppServer.sendOut(Jid.of(hostname), xml);
+
+    }
+
+    public List<StreamComponentServer> getConnections() {
+        return connections;
+    }
+
+    private Stanza parse(String xml) {
+        try {
+            Unmarshaller unmarshaller = session.createUnmarshaller();
+            return (Stanza)unmarshaller.unmarshal(new StringReader(xml));
+        } catch (JAXBException e) {
+            logger.error("JAXB exception", e);
+        }
+        return null;
+    }
+    @Override
+    public void stanzaReceived(String stanza) {
+        Stanza input = parse(stanza);
+        if (input instanceof Message) {
+            sendOut(ServerMessage.from((Message)input));
+        } else if (input instanceof IQ) {
+            sendOut(ServerIQ.from((IQ)input));
+        } else {
+            sendOut(ServerPresence.from((Presence) input));
+        }
+    }
+
+    public String getFromCache(Jid to) {
+        final String[] cache = new String[1];
+        outCache.stream().filter(c -> c.hostname != null && c.hostname.equals(to)).findFirst().ifPresent(c -> {
+            cache[0] = c.xml;
+            outCache.remove(c);
+        });
+        return cache[0];
+    }
+
+    @Override
+    public void ready(StreamComponentServer componentServer) {
+        logger.info("component {} ready", componentServer.to);
+        String cache = getFromCache(componentServer.to);
+        if (cache != null) {
+            logger.debug("sending cache to {}", componentServer.to);
+            componentServer.send(cache);
+        }
+    }
+
+    @Override
+    public void fail(Exception e) {
+
+    }
+
+    @Override
+    public boolean filter(Jid jid, Jid jid1) {
+        return false;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/juick/server/xmpp/router/XmlUtils.java b/src/main/java/com/juick/server/xmpp/router/XmlUtils.java
new file mode 100644
index 00000000..7579489f
--- /dev/null
+++ b/src/main/java/com/juick/server/xmpp/router/XmlUtils.java
@@ -0,0 +1,88 @@
+/*
+ * Juick
+ * Copyright (C) 2008-2011, Ugnich Anton
+ *
+ * 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.router;
+
+import java.io.IOException;
+
+import org.apache.commons.text.StringEscapeUtils;
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class XmlUtils {
+
+    public static void skip(XmlPullParser parser) throws XmlPullParserException, IOException {
+        String tag = parser.getName();
+        while (parser.getName() != null && !(parser.next() == XmlPullParser.END_TAG && parser.getName().equals(tag))) {
+        }
+    }
+
+    public static String getTagText(XmlPullParser parser) throws XmlPullParserException, IOException {
+        String ret = "";
+        String tag = parser.getName();
+
+        if (parser.next() == XmlPullParser.TEXT) {
+            ret = parser.getText();
+        }
+
+        while (!(parser.getEventType() == XmlPullParser.END_TAG && parser.getName().equals(tag))) {
+            parser.next();
+        }
+
+        return ret;
+    }
+
+    public static String parseToString(XmlPullParser parser, boolean skipXMLNS) throws XmlPullParserException, IOException {
+        String tag = parser.getName();
+        StringBuilder ret = new StringBuilder("<").append(tag);
+
+        // skipXMLNS for xmlns="jabber:client"
+
+        String ns = parser.getNamespace();
+        if (!skipXMLNS && ns != null && !ns.isEmpty()) {
+            ret.append(" xmlns=\"").append(ns).append("\"");
+        }
+
+        for (int i = 0; i < parser.getAttributeCount(); i++) {
+            String attr = parser.getAttributeName(i);
+            if ((!skipXMLNS || !attr.equals("xmlns")) && !attr.contains(":")) {
+                ret.append(" ").append(attr).append("=\"").append(StringEscapeUtils.escapeXml10(parser.getAttributeValue(i))).append("\"");
+            }
+        }
+        ret.append(">");
+
+        while (!(parser.next() == XmlPullParser.END_TAG && parser.getName().equals(tag))) {
+            int event = parser.getEventType();
+            if (event == XmlPullParser.START_TAG) {
+                if (!parser.getName().contains(":")) {
+                    ret.append(parseToString(parser, false));
+                } else {
+                    skip(parser);
+                }
+            } else if (event == XmlPullParser.TEXT) {
+                ret.append(StringEscapeUtils.escapeXml10(parser.getText()));
+            }
+        }
+
+        ret.append("</").append(tag).append(">");
+        return ret.toString();
+    }
+}