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path: root/src/main/java/com/juick/jabber/ws/XMPPConnection.java
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package com.juick.jabber.ws;

import com.juick.server.MessagesQueries;
import com.juick.server.Utils;
import com.juick.xmpp.JID;
import com.juick.xmpp.Message;
import com.juick.xmpp.Stream;
import com.juick.xmpp.StreamComponent;
import com.juick.xmpp.extensions.JuickMessage;
import java.io.IOException;
import java.net.Socket;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Iterator;

/**
 *
 * @author ugnich
 */
public class XMPPConnection implements Runnable, Stream.StreamListener, Message.MessageListener {

    Connection sql;
    Stream xmpp;
    String xmppPassword;

    public XMPPConnection(Connection sql, String password) {
        this.sql = sql;
        xmppPassword = password;
    }

    @Override
    public void run() {
        try {
            Socket socket = new Socket("localhost", 5347);
            xmpp = new StreamComponent(new JID("", "ws.juick.com", ""), socket.getInputStream(), socket.getOutputStream(), xmppPassword);
            xmpp.addChildParser(new JuickMessage());
            xmpp.addListener((Stream.StreamListener) this);
            xmpp.addListener((Message.MessageListener) this);
            xmpp.startParsing();
        } catch (IOException e) {
            System.err.println("XMPPConnection: " + e);
        }
    }

    @Override
    public void onStreamReady() {
        System.err.println("Stream ready");
    }

    @Override
    public void onStreamFail(String msg) {
        System.err.println("Stream failed: " + msg);
    }

    @Override
    public void onMessage(com.juick.xmpp.Message msg) {
        JuickMessage jmsg = (JuickMessage) msg.getChild(JuickMessage.XMLNS);
        if (jmsg != null) {
            System.err.println("MID=" + jmsg.MID + "; RID=" + jmsg.RID);
            if (jmsg.MID == 0) {
                int uid_to = 0;
                try {
                    uid_to = Integer.parseInt(msg.to.Username);
                } catch (Exception e) {
                }
                if (uid_to > 0) {
                    onJuickPM(uid_to, jmsg);
                }
            } else if (jmsg.RID == 0) {
                onJuickMessagePost(jmsg);
            } else {
                onJuickMessageReply(jmsg);
            }
        }
    }

    private void onJuickPM(int uid_to, com.juick.Message jmsg) {
        String json = com.juick.json.Message.toJSON(jmsg).toString();
        ByteBuffer bbMsg = buildTextFrame(json);

        synchronized (Main.clients) {
            for (Iterator<SocketSubscribed> i = Main.clients.iterator(); i.hasNext();) {
                SocketSubscribed s = i.next();
                if (s.VUID == uid_to && s.MID == 0 && s.allMessages == false && s.allReplies == false) {
                    if (!s.sendByteBuffer(bbMsg)) {
                        i.remove();
                    }
                }
            }
        }
    }

    private void onJuickMessagePost(com.juick.Message jmsg) {
        String json = com.juick.json.Message.toJSON(jmsg).toString();
        ByteBuffer bbMsg = buildTextFrame(json);

        ArrayList<Integer> uids = new ArrayList<Integer>();
        String query = "SELECT suser_id FROM subscr_users WHERE user_id=" + jmsg.User.UID + " AND suser_id NOT IN (SELECT user_id FROM bl_tags INNER JOIN messages_tags USING(tag_id) WHERE message_id=" + jmsg.MID + ")";
        if (jmsg.Privacy < 0) {
            query += " AND suser_id IN (SELECT wl_user_id FROM wl_users WHERE user_id=" + jmsg.User.UID + ")";
        }
        Statement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.createStatement();
            rs = stmt.executeQuery(query);
            rs.beforeFirst();
            while (rs.next()) {
                uids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            System.err.println("onJuickMessagePost: " + e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }

        synchronized (Main.clients) {
            for (Iterator<SocketSubscribed> i = Main.clients.iterator(); i.hasNext();) {
                SocketSubscribed s = i.next();
                if (s.MID == 0 && s.allReplies == false && ((jmsg.Privacy >= 0 && (s.allMessages || s.UID == jmsg.User.UID)) || uids.contains(s.VUID))) {
                    if (!s.sendByteBuffer(bbMsg)) {
                        i.remove();
                    }
                }
            }
        }
    }

    private void onJuickMessageReply(com.juick.Message jmsg) {
        String json = com.juick.json.Message.toJSON(jmsg).toString();
        ByteBuffer bbMsg = buildTextFrame(json);

        int privacy = MessagesQueries.getMessagePrivacy(sql, jmsg.MID);

        synchronized (Main.clients) {
            for (Iterator<SocketSubscribed> i = Main.clients.iterator(); i.hasNext();) {
                SocketSubscribed s = i.next();
                if ((privacy >= 0 && s.allReplies) || s.MID == jmsg.MID) {
                    if (!s.sendByteBuffer(bbMsg)) {
                        i.remove();
                    }
                }
            }
        }
    }

    private ByteBuffer buildTextFrame(String json) {
        ByteBuffer jsonbytes = Charset.forName("UTF-8").encode(json);
        ByteBuffer bbMsg = ByteBuffer.allocate(jsonbytes.limit() + 8);
        bbMsg.put((byte) 0x81);
        if (jsonbytes.limit() <= 125) {
            bbMsg.put((byte) jsonbytes.limit());
        } else {
            bbMsg.put((byte) 126);
            bbMsg.putShort((short) jsonbytes.limit());
        }
        bbMsg.put(jsonbytes);
        bbMsg.flip();
        return bbMsg;
    }
}