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284 lines
12 KiB
284 lines
12 KiB
// Wiki.java
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// -----------------------
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// part of the AnomicHTTPD caching proxy
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// (C) by Michael Peter Christen; mc@yacy.net
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004
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//
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//$LastChangedDate$
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//$LastChangedRevision$
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//$LastChangedBy$
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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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// Contains contributions from Alexander Schier [AS]
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// and Marc Nause [MN]
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// You must compile this file with
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// javac -classpath .:../classes Wiki.java
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// if the shell's current path is HTROOT
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package net.yacy.htroot;
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import java.io.IOException;
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import java.util.Arrays;
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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.Map;
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import net.yacy.cora.date.GenericFormatter;
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import net.yacy.cora.document.encoding.UTF8;
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import net.yacy.cora.protocol.Domains;
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import net.yacy.cora.protocol.HeaderFramework;
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import net.yacy.cora.protocol.RequestHeader;
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import net.yacy.data.Diff;
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import net.yacy.data.wiki.WikiBoard;
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import net.yacy.peers.NewsPool;
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import net.yacy.peers.Seed;
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import net.yacy.search.Switchboard;
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import net.yacy.server.serverObjects;
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import net.yacy.server.serverSwitch;
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public class Wiki {
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private static final String ANONYMOUS = "anonymous";
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//private static String ListLevel = "";
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//private static String numListLevel = "";
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public static String dateString(final Date date) {
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return GenericFormatter.SIMPLE_FORMATTER.format(date);
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}
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public static serverObjects respond(final RequestHeader header, serverObjects post, final serverSwitch env) throws IOException {
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final Switchboard sb = (Switchboard) env;
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final serverObjects prop = new serverObjects();
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if (post == null) {
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post = new serverObjects();
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post.put("page", "start");
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}
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prop.put("topmenu", sb.getConfigBool("publicTopmenu", true) ? 1 : 0);
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String access = sb.getConfig("WikiAccess", "admin");
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final String pagename = get(post, "page", "start");
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final String ip = get(post, HeaderFramework.CONNECTION_PROP_CLIENTIP, Domains.LOCALHOST);
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String author = get(post, "author", ANONYMOUS);
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if (author.equals(ANONYMOUS)) {
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author = WikiBoard.guessAuthor(ip);
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if (author == null) {
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author = (sb.peers.mySeed() == null) ? ANONYMOUS : sb.peers.mySeed().get(Seed.NAME, ANONYMOUS);
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}
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}
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if (post != null && post.containsKey("access")) {
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// only the administrator may change the access right
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if (!sb.verifyAuthentication(header)) {
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// check access right for admin
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prop.authenticationRequired();
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return prop;
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}
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access = post.get("access", "admin");
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sb.setConfig("WikiAccess", access);
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}
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if (access.equals("admin")) {
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prop.put("mode_access", "0");
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} else if (access.equals("all")) {
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prop.put("mode_access", "1");
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}
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WikiBoard.Entry page = sb.wikiDB.read(pagename);
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if (post != null && post.containsKey("submit")) {
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if ((access.equals("admin") && (!sb.verifyAuthentication(header)))) {
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// check access right for admin
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prop.authenticationRequired();
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return prop;
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}
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// store a new page
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byte[] content;
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content = UTF8.getBytes(post.get("content", ""));
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final WikiBoard.Entry newEntry = sb.wikiDB.newEntry(pagename, author, ip, post.get("reason", "edit"), content);
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sb.wikiDB.write(newEntry);
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// create a news message
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final Map<String, String> map = new HashMap<String, String>();
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map.put("page", pagename);
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map.put("author", author.replace(',', ' '));
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if (!sb.isRobinsonMode() && post.get("content", "").trim().length() > 0 && !Arrays.equals(page.page(), content)) {
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sb.peers.newsPool.publishMyNews(sb.peers.mySeed(), NewsPool.CATEGORY_WIKI_UPDATE, map);
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}
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page = newEntry;
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prop.putHTML(serverObjects.ACTION_LOCATION, "Wiki.html?page=" + pagename);
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prop.put(serverObjects.ACTION_LOCATION, prop.get(serverObjects.ACTION_LOCATION));
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}
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if (post != null && post.containsKey("edit")) {
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if ((access.equals("admin") && (!sb.verifyAuthentication(header)))) {
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// check access right for admin
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prop.authenticationRequired();
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return prop;
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}
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prop.put("mode", "1"); //edit
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prop.putHTML("mode_author", author);
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prop.putHTML("mode_page-code", UTF8.String(page.page()));
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prop.putHTML("mode_pagename", pagename); }
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//contributed by [MN]
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else if (post != null && post.containsKey("preview")) {
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// preview the page
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prop.put("mode", "2");//preview
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prop.putHTML("mode_pagename", pagename);
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prop.putHTML("mode_author", author);
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prop.put("mode_date", dateString(new Date()));
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/* We do not fill hostport parameter : relative links should stay relative as it is more reliable
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* when the peer is behind any kind of reverse Proxy */
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prop.putWiki("mode_page", post.get("content", ""));
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prop.putHTML("mode_page-code", post.get("content", ""));
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}
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//end contrib of [MN]
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else if (post != null && post.containsKey("index")) {
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// view an index
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prop.put("mode", "3"); //Index
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try {
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final Iterator<byte[]> i = sb.wikiDB.keys(true);
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int count=0;
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while (i.hasNext()) {
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final String subject = UTF8.String(i.next());
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final WikiBoard.Entry entry = sb.wikiDB.read(subject);
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prop.putHTML("mode_pages_" + count + "_name",WikiBoard.webalize(subject));
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prop.putHTML("mode_pages_" + count + "_subject", subject);
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prop.put("mode_pages_" + count + "_date", dateString(entry.date()));
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prop.putHTML("mode_pages_" + count + "_author", entry.author());
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count++;
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}
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prop.put("mode_pages", count);
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} catch (final IOException e) {
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prop.put("mode_error", "1"); //IO Error reading Wiki
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prop.putHTML("mode_error_message", e.getMessage());
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}
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prop.putHTML("mode_pagename", pagename);
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} else if (post != null && post.containsKey("diff")) {
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// Diff
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prop.put("mode", "4");
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prop.putHTML("mode_page", pagename);
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prop.putHTML("mode_error_page", pagename);
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try {
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final Iterator<byte[]> it = sb.wikiDB.keysBkp(true);
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WikiBoard.Entry entry;
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WikiBoard.Entry oentry = null;
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WikiBoard.Entry nentry = null;
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int count = 0;
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boolean oldselected = false, newselected = false;
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while (it.hasNext()) {
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entry = sb.wikiDB.readBkp(UTF8.String(it.next()));
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prop.put("mode_error_versions_" + count + "_date", WikiBoard.dateString(entry.date()));
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prop.put("mode_error_versions_" + count + "_fdate", dateString(entry.date()));
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if (WikiBoard.dateString(entry.date()).equals(post.get("old", null))) {
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prop.put("mode_error_versions_" + count + "_oldselected", "1");
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oentry = entry;
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oldselected = true;
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} else if (WikiBoard.dateString(entry.date()).equals(post.get("new", null))) {
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prop.put("mode_error_versions_" + count + "_newselected", "1");
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nentry = entry;
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newselected = true;
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}
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count++;
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}
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count--; // don't show current version
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if (!oldselected) { // select latest old entry
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prop.put("mode_error_versions_" + (count - 1) + "_oldselected", "1");
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}
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if (!newselected) { // select latest new entry (== current)
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prop.put("mode_error_curselected", "1");
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}
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if (count == 0) {
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prop.put("mode_error", "2"); // no entries found
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} else {
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prop.put("mode_error_versions", count);
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}
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entry = sb.wikiDB.read(pagename);
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if (entry != null) {
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prop.put("mode_error_curdate", WikiBoard.dateString(entry.date()));
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prop.put("mode_error_curfdate", dateString(entry.date()));
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}
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if (nentry == null) {
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nentry = entry;
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}
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if (post.containsKey("compare") && oentry != null && nentry != null) {
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// TODO: split into paragraphs and compare them with the same diff-algo
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final Diff diff = new Diff(
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UTF8.String(oentry.page()),
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UTF8.String(nentry.page()), 3);
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prop.put("mode_versioning_diff", net.yacy.data.Diff.toHTML(new Diff[] { diff }));
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prop.put("mode_versioning", "1");
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} else if (post.containsKey("viewold") && oentry != null) {
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prop.put("mode_versioning", "2");
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prop.putHTML("mode_versioning_pagename", pagename);
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prop.putHTML("mode_versioning_author", oentry.author());
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prop.put("mode_versioning_date", dateString(oentry.date()));
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/* We do not fill hostport parameter : relative links should stay relative as it is more reliable
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* when the peer is behind any kind of reverse Proxy */
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prop.putWiki("mode_versioning_page", oentry.page());
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prop.putHTML("mode_versioning_page-code", UTF8.String(oentry.page()));
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}
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} catch (final IOException e) {
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prop.put("mode_error", "1"); //IO Error reading Wiki
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prop.putHTML("mode_error_message", e.getMessage());
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}
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}
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else {
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// show page
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prop.put("mode", "0"); //viewing
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prop.putHTML("mode_pagename", pagename);
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prop.putHTML("mode_author", page.author());
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prop.put("mode_date", dateString(page.date()));
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/* We do not fill hostport parameter : relative links should stay relative as it is more reliable
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* when the peer is behind any kind of reverse Proxy */
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prop.putWiki("mode_page", page.page());
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prop.put("controls", "0");
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prop.putHTML("controls_pagename", pagename);
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}
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// return rewrite properties
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return prop;
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}
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/**
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* get key from post, use dflt if (not present or post == null)
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*
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* @param post
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* @param string
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* @param string2
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* @return
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*/
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private static String get(final serverObjects post, final String key, final String dflt) {
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return (post == null ? dflt : post.get(key, dflt));
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}
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}
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