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360 lines
13 KiB
360 lines
13 KiB
// wikiBoard.java
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// -------------------------------------
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// (C) by Michael Peter Christen; mc@anomic.de
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004
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// last major change: 20.07.2004
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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// This file is contributed by Jan Sandbrink
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// based on the Code of wikiBoard.java
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package de.anomic.data;
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import java.io.ByteArrayInputStream;
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import java.io.File;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.GregorianCalendar;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.TimeZone;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import org.w3c.dom.Document;
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import org.w3c.dom.Node;
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import org.w3c.dom.NodeList;
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import org.xml.sax.SAXException;
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import de.anomic.kelondro.kelondroBase64Order;
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import de.anomic.kelondro.kelondroDyn;
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import de.anomic.kelondro.kelondroMapObjects;
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import de.anomic.kelondro.kelondroNaturalOrder;
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public class blogBoard {
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public static final int keyLength = 64;
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private static final String dateFormat = "yyyyMMddHHmmss";
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private static final int recordSize = 512;
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private static TimeZone GMTTimeZone = TimeZone.getTimeZone("PST");
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private static SimpleDateFormat SimpleFormatter = new SimpleDateFormat(dateFormat);
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private kelondroMapObjects datbase = null;
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public blogBoard(File actpath, long preloadTime) {
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new File(actpath.getParent()).mkdir();
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if (datbase == null) {
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datbase = new kelondroMapObjects(new kelondroDyn(actpath, true, true, preloadTime, keyLength, recordSize, '_', kelondroNaturalOrder.naturalOrder, true, false, false), 500);
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}
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}
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public int size() {
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return datbase.size();
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}
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public void close() {
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datbase.close();
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}
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private static String dateString(Date date) {
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return SimpleFormatter.format(date);
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}
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private static String normalize(String key) {
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if (key == null) return "null";
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return key.trim().toLowerCase();
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}
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public static String webalize(String key) {
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if (key == null) return "null";
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key = key.trim().toLowerCase();
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int p;
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while ((p = key.indexOf(" ")) >= 0)
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key = key.substring(0, p) + "%20" + key.substring(p +1);
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return key;
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}
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public String guessAuthor(String ip) {
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return wikiBoard.guessAuthor(ip);
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}
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public entry newEntry(String key, byte[] subject, byte[] author, String ip, Date date, byte[] page, ArrayList comments, String commentMode) {
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return new entry(normalize(key), subject, author, ip, date, page, comments, commentMode);
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}
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public class entry {
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String key;
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Map record;
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public entry(String nkey, byte[] subject, byte[] author, String ip, Date date, byte[] page, ArrayList comments, String commentMode) {
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record = new HashMap();
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key = nkey;
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if (key.length() > keyLength) key = key.substring(0, keyLength);
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if(date == null) date = new GregorianCalendar(GMTTimeZone).getTime();
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record.put("date", dateString(date));
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if (subject == null) record.put("subject","");
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else record.put("subject", kelondroBase64Order.enhancedCoder.encode(subject));
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if (author == null) record.put("author","");
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else record.put("author", kelondroBase64Order.enhancedCoder.encode(author));
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if ((ip == null) || (ip.length() == 0)) ip = "";
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record.put("ip", ip);
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if (page == null) record.put("page", "");
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else record.put("page", kelondroBase64Order.enhancedCoder.encode(page));
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if (comments == null) record.put("comments", listManager.arraylist2string(new ArrayList()));
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else record.put("comments", listManager.arraylist2string(comments));
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if (commentMode == null) record.put("commentMode", "1");
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else record.put("commentMode", commentMode);
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wikiBoard.setAuthor(ip, new String(author));
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//System.out.println("DEBUG: setting author " + author + " for ip = " + ip + ", authors = " + authors.toString());
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}
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private entry(String key, Map record) {
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this.key = key;
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this.record = record;
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if (this.record.get("comments")==null) this.record.put("comments", listManager.arraylist2string(new ArrayList()));
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if (this.record.get("commentMode")==null || this.record.get("commentMode").equals("")) this.record.put("commentMode", "1");
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}
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public String key() {
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return key;
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}
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public byte[] subject() {
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String m = (String) record.get("subject");
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if (m == null) return new byte[0];
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byte[] b = kelondroBase64Order.enhancedCoder.decode(m);
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if (b == null) return "".getBytes();
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return b;
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}
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public Date date() {
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try {
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String c = (String) record.get("date");
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if (c == null) {
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System.out.println("DEBUG - ERROR: date field missing in blogBoard");
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return new Date();
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}
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return SimpleFormatter.parse(c);
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} catch (ParseException e) {
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return new Date();
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}
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}
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public String timestamp() {
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String c = (String) record.get("date");
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if (c == null) {
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System.out.println("DEBUG - ERROR: date field missing in blogBoard");
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return dateString(new Date());
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}
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return c;
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}
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public byte[] author() {
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String m = (String) record.get("author");
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if (m == null) return new byte[0];
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byte[] b = kelondroBase64Order.enhancedCoder.decode(m);
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if (b == null) return "".getBytes();
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return b;
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}
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public byte[] commentsSize() {
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ArrayList m = listManager.string2arraylist((String) record.get("comments"));
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if (m == null) return new byte[0];
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byte[] b = Integer.toString(m.size()).getBytes();
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if (b == null) return "".getBytes();
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return b;
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}
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public ArrayList comments() {
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ArrayList m = listManager.string2arraylist((String) record.get("comments"));
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if (m == null) return new ArrayList();
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return m;
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}
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public String ip() {
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String a = (String) record.get("ip");
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if (a == null) return "127.0.0.1";
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return a;
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}
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public byte[] page() {
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String m = (String) record.get("page");
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if (m == null) return new byte[0];
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byte[] b = kelondroBase64Order.enhancedCoder.decode(m);
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if (b == null) return "".getBytes();
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return b;
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}
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public void addComment(String commentID) {
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ArrayList comments = listManager.string2arraylist((String) record.get("comments"));
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comments.add(commentID);
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record.put("comments", listManager.arraylist2string(comments));
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}
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public boolean removeComment(String commentID) {
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ArrayList comments = listManager.string2arraylist((String) record.get("comments"));
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boolean success = comments.remove(commentID);
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record.put("comments", listManager.arraylist2string(comments));
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return success;
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}
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public int getCommentMode(){
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return Integer.parseInt((String) record.get("commentMode"));
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}
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}
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public String write(entry page) {
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// writes a new page and returns key
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try {
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datbase.set(page.key, page.record);
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return page.key;
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} catch (IOException e) {
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return null;
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}
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}
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public entry read(String key) {
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return read(key, datbase);
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}
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private entry read(String key, kelondroMapObjects base) {
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key = normalize(key);
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if (key.length() > keyLength) key = key.substring(0, keyLength);
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Map record = base.getMap(key);
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if (record == null) return newEntry(key, "".getBytes(), "anonymous".getBytes(), "127.0.0.1", new GregorianCalendar(GMTTimeZone).getTime(), "".getBytes(), null, null);
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return new entry(key, record);
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}
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public boolean importXML(String input) {
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DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
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try {
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DocumentBuilder builder = factory.newDocumentBuilder();
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Document doc = builder.parse(new ByteArrayInputStream(input.getBytes()));
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return parseXMLimport(doc);
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} catch (ParserConfigurationException e) {
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} catch (SAXException e) {
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} catch (IOException e) {}
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return false;
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}
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private boolean parseXMLimport(Document doc) {
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if(!doc.getDocumentElement().getTagName().equals("blog"))
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return false;
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NodeList items = doc.getDocumentElement().getElementsByTagName("item");
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if(items.getLength() == 0)
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return false;
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for(int i=0;i<items.getLength();++i) {
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String key = null, ip = null, StrSubject = null, StrAuthor = null, StrPage = null, StrDate = null;
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Date date = null;
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if(!items.item(i).getNodeName().equals("item"))
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continue;
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NodeList currentNodeChildren = items.item(i).getChildNodes();
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for(int j=0;j<currentNodeChildren.getLength();++j) {
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Node currentNode = currentNodeChildren.item(j);
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if(currentNode.getNodeName().equals("id"))
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key = currentNode.getFirstChild().getNodeValue();
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else if(currentNode.getNodeName().equals("ip"))
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ip = currentNode.getFirstChild().getNodeValue();
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else if(currentNode.getNodeName().equals("timestamp"))
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StrDate = currentNode.getFirstChild().getNodeValue();
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else if(currentNode.getNodeName().equals("subject"))
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StrSubject = currentNode.getFirstChild().getNodeValue();
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else if(currentNode.getNodeName().equals("author"))
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StrAuthor = currentNode.getFirstChild().getNodeValue();
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else if(currentNode.getNodeName().equals("content"))
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StrPage = currentNode.getFirstChild().getNodeValue();
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}
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try {
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date = SimpleFormatter.parse(StrDate);
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} catch (ParseException e1) {
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date = new Date();
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}
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if(key == null || ip == null || StrSubject == null || StrAuthor == null || StrPage == null || date == null)
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return false;
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byte[] subject,author,page;
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try {
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subject = StrSubject.getBytes("UTF-8");
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} catch (UnsupportedEncodingException e1) {
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subject = StrSubject.getBytes();
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}
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try {
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author = StrAuthor.getBytes("UTF-8");
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} catch (UnsupportedEncodingException e1) {
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author = StrAuthor.getBytes();
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}
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try {
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page = StrPage.getBytes("UTF-8");
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} catch (UnsupportedEncodingException e1) {
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page = StrPage.getBytes();
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}
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write (newEntry(key, subject, author, ip, date, page, null, null));
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}
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return true;
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}
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public void delete(String key) {
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key = normalize(key);
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try {
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datbase.remove(key);
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} catch (IOException e) { }
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}
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public Iterator keys(boolean up) throws IOException {
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return datbase.keys(up, false);
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}
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}
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