AuditorImpl.java 7.5 KB
Newer Older
Matt Tucker's avatar
Matt Tucker committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
/**
 * $RCSfile$
 * $Revision$
 * $Date$
 *
 * Copyright (C) 2004 Jive Software. All rights reserved.
 *
 * This software is published under the terms of the GNU Public License (GPL),
 * a copy of which is included in this distribution.
 */

package org.jivesoftware.messenger.audit.spi;

import org.jivesoftware.util.LocaleUtils;
import org.jivesoftware.util.Log;
import org.jivesoftware.messenger.*;
import org.jivesoftware.messenger.audit.AuditEvent;
import org.jivesoftware.messenger.audit.AuditManager;
import org.jivesoftware.messenger.audit.Auditor;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.Date;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;

public class AuditorImpl implements Auditor {

    private AuditManager auditManager;
    private File currentAuditFile;
    private Writer writer;
    private XMLStreamWriter xmlSerializer;
    private static final int MEGABYTE = 1024 * 1024;
    private int maxSize;
    private long maxCount;
    private boolean closed = false;

40
    public AuditorImpl(AuditManager manager) {
Matt Tucker's avatar
Matt Tucker committed
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171
        auditManager = manager;
    }

    public void audit(XMPPPacket packet) {
        if (auditManager.isEnabled()) {
            if (packet instanceof Message) {
                if (auditManager.isEnabled() && auditManager.isAuditMessage()) {
                    writePacket(packet, false);
                }
            }
            else if (packet instanceof Presence) {
                if (auditManager.isEnabled() && auditManager.isAuditPresence()) {
                    writePacket(packet, false);
                }
            }
            else if (packet instanceof IQ) {
                if (auditManager.isEnabled() && auditManager.isAuditIQ()) {
                    writePacket(packet, false);
                }
            }
        }
    }

    public synchronized void audit(Message packet) {
        if (auditManager.isEnabled() && auditManager.isAuditMessage()) {
            writePacket(packet, false);
        }
    }

    public synchronized void audit(Presence packet, int transition) {
        if (auditManager.isEnabled() && auditManager.isAuditPresence()) {
            writePacket(packet, false);
        }
    }

    public synchronized void audit(IQ packet) {
        if (auditManager.isEnabled() && auditManager.isAuditIQ()) {
            writePacket(packet, false);
        }
    }

    public synchronized void auditDroppedPacket(XMPPPacket packet) {
        writePacket(packet, true);
    }

    public synchronized void audit(AuditEvent event) {
        try {
            prepareAuditFile();
        }
        catch (Exception e) {
            Log.error(LocaleUtils.getLocalizedString("admin.error"), e);
        }
    }

    public void close() {
        if (xmlSerializer != null) {
            try {
                xmlSerializer.writeEndElement();
                xmlSerializer.flush();
                xmlSerializer = null;
                writer.close();
                writer = null;
            }
            catch (Exception e) {
                Log.error(LocaleUtils.getLocalizedString("admin.error"), e);
            }
        }
    }

    private void writePacket(XMPPPacket packet, boolean dropped) {
        if (!closed) {
            try {
                prepareAuditFile();
                xmlSerializer.writeStartElement("packet");
                xmlSerializer.writeDefaultNamespace("http://jivesoftware.com");
                Session session = packet.getOriginatingSession();
                if (session != null) {
                    if (session.getStreamID() != null) {
                        xmlSerializer.writeAttribute("session", session.getStreamID().toString());
                    }
                    switch (session.getStatus()) {
                        case Session.STATUS_AUTHENTICATED:
                            xmlSerializer.writeAttribute("status", "auth");
                            break;
                        case Session.STATUS_CLOSED:
                            xmlSerializer.writeAttribute("status", "closed");
                            break;
                        case Session.STATUS_CONNECTED:
                            xmlSerializer.writeAttribute("status", "connected");
                            break;
                        case Session.STATUS_STREAMING:
                            xmlSerializer.writeAttribute("status", "stream");
                            break;
                        default:
                            xmlSerializer.writeAttribute("status", "unknown");
                            break;
                    }
                }
                xmlSerializer.writeAttribute("timestamp", new Date().toString());
                if (packet.isSending()) {
                    xmlSerializer.writeAttribute("sending", "true");
                }
                if (dropped) {
                    xmlSerializer.writeAttribute("dropped", "true");
                }
                packet.send(xmlSerializer, 0);
                xmlSerializer.writeEndElement();
                xmlSerializer.flush();
            }
            catch (Exception e) {
                Log.error(LocaleUtils.getLocalizedString("admin.error"), e);
            }
        } // closed
    }

    private void prepareAuditFile() throws IOException, XMLStreamException {
        if (currentAuditFile == null || currentAuditFile.length() > maxSize) {
            rotateFiles();
        }
    }

    protected void setMaxValues(int size, int count) {
        maxSize = size * MEGABYTE;
        maxCount = count;
    }

    private void rotateFiles() throws IOException, XMLStreamException {
        close();
        int i;
        // Find the next available log file name
        for (i = 0; maxCount < 1 || i < maxCount; i++) {
172 173
            currentAuditFile = new File(JiveGlobals.getMessengerHome() + File.separator + "logs",
                    "jive.audit-" + i + ".log");
Matt Tucker's avatar
Matt Tucker committed
174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
            if (!currentAuditFile.exists()) {
                break;
            }
        }
        // Two edge cases, i == 0 (no log files exist) and i == MAX_FILE_COUNT
        // If i == 0 then the loop above has already set currentAuditFile to
        // the correct file name, so we only need to setup a file name if i != 0
        if (i != 0) {
            if (i == maxCount) {
                // We need to delete the last in the series to make room for the next file
                // the currentAuditFile should be pointing at the last legitimate
                // file name in the series (i < MAX_FILE_COUNT) so we just delete it
                // so the previous file can be rotated to it
                currentAuditFile.delete();
            }
            // Rotate the files
            for (i--; i >= 0; i--) {
                String previousName = "jive.audit-" + i + ".log";
192 193
                File previousFile = new File(JiveGlobals.getMessengerHome() + File.separator + "logs",
                        previousName);
Matt Tucker's avatar
Matt Tucker committed
194
                previousFile.renameTo(currentAuditFile);
195 196
                currentAuditFile = new File(JiveGlobals.getMessengerHome() + File.separator + "logs",
                        previousName);
Matt Tucker's avatar
Matt Tucker committed
197 198 199 200 201 202 203 204 205 206
            }
        }

        writer = new FileWriter(currentAuditFile);
        xmlSerializer = XMLOutputFactory.newInstance().createXMLStreamWriter(writer);
        xmlSerializer.setDefaultNamespace("jabber:client");
        xmlSerializer.writeStartElement("jive", "jive", "http://jivesoftware.com");
        xmlSerializer.writeNamespace("jive", "http://jivesoftware.com");
    }
}