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355 lines
13 KiB
355 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.HashMap;
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import java.util.Iterator;
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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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import de.anomic.server.logging.serverLog;
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public class blogBoardComments {
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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 SimpleDateFormat SimpleFormatter = new SimpleDateFormat(dateFormat);
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static {
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SimpleFormatter.setTimeZone(TimeZone.getTimeZone("GMT"));
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}
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private kelondroMapObjects database = null;
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public blogBoardComments(File actpath) {
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new File(actpath.getParent()).mkdir();
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if (database == null) {
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database = new kelondroMapObjects(new kelondroDyn(actpath, true, true, keyLength, recordSize, '_', kelondroNaturalOrder.naturalOrder, false, false, false), 500);
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}
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}
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public int size() {
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return database.size();
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}
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public void close() {
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database.close();
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}
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private static String dateString(Date date) {
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synchronized (SimpleFormatter) {
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return SimpleFormatter.format(date);
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}
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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 CommentEntry newEntry(String key, byte[] subject, byte[] author, String ip, Date date, byte[] page) {
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return new CommentEntry(normalize(key), subject, author, ip, date, page);
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}
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public String write(CommentEntry page) {
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// writes a new page and returns key
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try {
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database.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 CommentEntry read(String key) {
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//System.out.println("DEBUG: read from blogBoardComments");
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return read(key, database);
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}
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private CommentEntry 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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HashMap<String, String> record = base.getMap(key);
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if (record == null) return newEntry(key, "".getBytes(), "anonymous".getBytes(), "127.0.0.1", new Date(), "".getBytes());
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return new CommentEntry(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));
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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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database.remove(key);
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} catch (IOException e) { }
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}
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public Iterator<String> keys(boolean up) throws IOException {
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return database.keys(up, false);
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}
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public class CommentEntry {
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String key;
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HashMap<String, String> record;
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public CommentEntry(String nkey, byte[] subject, byte[] author, String ip, Date date, byte[] page) {
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record = new HashMap<String, String>();
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setKey(nkey);
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setDate(date);
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setSubject(subject);
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setAuthor(author);
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setIp(ip);
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setPage(page);
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wikiBoard.setAuthor(ip, new String(author));
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}
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private CommentEntry(String key, HashMap<String, String> 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.collection2string(new ArrayList<String>()));
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}
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public String getKey() {
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return key;
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}
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private void setKey(String var) {
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key = var;
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if (key.length() > keyLength)
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key = var.substring(0, keyLength);
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}
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private void setSubject(byte[] subject) {
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if (subject == null)
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record.put("subject","");
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else
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record.put("subject", kelondroBase64Order.enhancedCoder.encode(subject));
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}
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public byte[] getSubject() {
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String subject = (String) record.get("subject");
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if (subject == null) return new byte[0];
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byte[] subject_bytes = kelondroBase64Order.enhancedCoder.decode(subject, "de.anomic.data.blogBoardComments.subject()");
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if (subject_bytes == null) return "".getBytes();
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return subject_bytes;
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}
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private void setDate(Date date) {
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if(date == null)
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date = new Date();
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record.put("date", dateString(date));
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}
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public Date getDate() {
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try {
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String date = (String) record.get("date");
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if (date == null) {
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serverLog.logFinest("Blog", "ERROR: date field missing in blogBoard");
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return new Date();
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}
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synchronized (SimpleFormatter) {
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return SimpleFormatter.parse(date);
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}
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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 getTimestamp() {
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String timestamp = (String) record.get("date");
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if (timestamp == null) {
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serverLog.logFinest("Blog", "ERROR: date field missing in blogBoard");
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return dateString(new Date());
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}
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return timestamp;
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}
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private void setAuthor(byte[] author) {
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if (author == null)
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record.put("author","");
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else
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record.put("author", kelondroBase64Order.enhancedCoder.encode(author));
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}
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public byte[] getAuthor() {
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String author = (String) record.get("author");
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if (author == null)
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return new byte[0];
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byte[] author_byte = kelondroBase64Order.enhancedCoder.decode(author, "de.anomic.data.blogBoardComments.author()");
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if (author_byte == null)
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return "".getBytes();
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return author_byte;
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}
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private void setIp(String ip) {
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if ((ip == null) || (ip.length() == 0))
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ip = "";
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record.put("ip", ip);
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}
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public String getIp() {
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String ip = (String) record.get("ip");
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if (ip == null)
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return "127.0.0.1";
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return ip;
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}
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private void setPage(byte[] page) {
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if (page == null)
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record.put("page", "");
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else
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record.put("page", kelondroBase64Order.enhancedCoder.encode(page));
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}
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public byte[] getPage() {
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String page = (String) record.get("page");
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if (page == null)
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return new byte[0];
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byte[] page_byte = kelondroBase64Order.enhancedCoder.decode(page, "de.anomic.data.blogBoardComments.page()");
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if (page_byte == null)
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return "".getBytes();
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return page_byte;
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}
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/**
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* Is the comment allowed?
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* this is possible for moderated blog entry only and means
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* the administrator has explicit allowed the comment.
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* @return
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*/
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public boolean isAllowed() {
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return (record.get("moderated") != null) && record.get("moderated").equals("true");
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}
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public void allow() {
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record.put("moderated", "true");
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}
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}
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}
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