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343 lines
13 KiB
343 lines
13 KiB
// Blog.java
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// -----------------------
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// part of YACY
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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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// This File is contributed by Jan Sandbrink
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// Contains contributions from Marc Nause [MN]
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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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// You must compile this file with
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// javac -classpath .:../classes Blog.java
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// if the shell's current path is HTROOT
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import java.text.DateFormat;
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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.List;
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import java.util.Locale;
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import java.util.Map;
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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.BlogBoard;
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import net.yacy.data.UserDB;
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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 Blog {
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private static final String DEFAULT_PAGE = "blog_default";
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private static DateFormat SimpleFormatter = DateFormat.getDateTimeInstance(DateFormat.DEFAULT,DateFormat.DEFAULT, Locale.getDefault());
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/**
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* print localized date/time "yyyy/mm/dd HH:mm:ss"
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* @param date
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* @return
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*/
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public static String dateString(final Date date) {
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return SimpleFormatter.format(date);
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}
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public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
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final Switchboard sb = (Switchboard) env;
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final serverObjects prop = new serverObjects();
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BlogBoard.BlogEntry page = null;
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boolean hasRights = sb.verifyAuthentication(header);
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//final int display = (hasRights || post == null) ? 1 : post.getInt("display", 0);
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//prop.put("display", display);
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prop.put("display", 1); // Fixed to 1
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final boolean xml = (header.get(HeaderFramework.CONNECTION_PROP_PATH)).endsWith(".xml");
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final String address = sb.peers.mySeed().getPublicAddress(sb.peers.mySeed().getIP());
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prop.put("mode_admin", hasRights ? "1" : "0");
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if (post == null) {
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prop.putHTML("peername", sb.peers.mySeed().getName());
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prop.put("address", address);
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return putBlogDefault(prop, sb, address, 0, 10, hasRights, xml);
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}
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final int start = post.getInt("start",0); //indicates from where entries should be shown
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final int num = post.getInt("num",10); //indicates how many entries should be shown
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if (!hasRights) {
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final UserDB.Entry userentry = sb.userDB.proxyAuth(header.get(RequestHeader.AUTHORIZATION, "xxxxxx"));
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if (userentry != null && userentry.hasRight(UserDB.AccessRight.BLOG_RIGHT)) {
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hasRights=true;
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} else if (post.containsKey("login")) {
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//opens login window if login link is clicked
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prop.authenticationRequired();
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}
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}
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String pagename = post.get("page", DEFAULT_PAGE);
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final String ip = header.get(HeaderFramework.CONNECTION_PROP_CLIENTIP, Domains.LOCALHOST);
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String strAuthor = post.get("author", "anonymous");
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if ("anonymous".equals(strAuthor)) {
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strAuthor = sb.blogDB.guessAuthor(ip);
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if (strAuthor == null || strAuthor.isEmpty()) {
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if (sb.peers.mySeed() == null) {
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strAuthor = "anonymous";
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} else {
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strAuthor = sb.peers.mySeed().get(Seed.NAME, "anonymous");
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}
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}
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}
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byte[] author;
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author = UTF8.getBytes(strAuthor);
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if (hasRights && post.containsKey("delete") && "sure".equals(post.get("delete"))) {
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page = sb.blogDB.readBlogEntry(pagename);
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for (final String comment : page.getComments()) {
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sb.blogCommentDB.delete(comment);
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}
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sb.blogDB.deleteBlogEntry(pagename);
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pagename = DEFAULT_PAGE;
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}
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if (post.containsKey("discard")) {
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pagename = DEFAULT_PAGE;
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}
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if (post.containsKey("submit") && hasRights) {
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// store a new/edited blog-entry
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byte[] content;
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content = UTF8.getBytes(post.get("content", ""));
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final Date date;
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List<String> comments = null;
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//set name for new entry or date for old entry
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if (DEFAULT_PAGE.equals(pagename)) {
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pagename = String.valueOf(System.currentTimeMillis());
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date = null;
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} else {
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page = sb.blogDB.readBlogEntry(pagename);
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comments = page.getComments();
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date = page.getDate();
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}
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final String commentMode = post.get("commentMode", "2");
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final String StrSubject = post.get("subject", "");
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byte[] subject;
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subject = UTF8.getBytes(StrSubject);
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sb.blogDB.writeBlogEntry(sb.blogDB.newEntry(pagename, subject, author, ip, date, content, comments, commentMode));
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// create a news message
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if (!sb.isRobinsonMode()) {
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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("subject", StrSubject.replace(',', ' '));
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map.put("author", strAuthor.replace(',', ' '));
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sb.peers.newsPool.publishMyNews(sb.peers.mySeed(), NewsPool.CATEGORY_BLOG_ADD, map);
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}
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}
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page = sb.blogDB.readBlogEntry(pagename); //maybe "if(page == null)"
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if (post.containsKey("edit")) {
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//edit an entry
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if(hasRights) {
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prop.put("mode", "1"); //edit
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prop.put("mode_commentMode", page.getCommentMode());
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prop.putHTML("mode_author", UTF8.String(page.getAuthor()));
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prop.put("mode_pageid", page.getKey());
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prop.putHTML("mode_subject", UTF8.String(page.getSubject()));
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prop.put("mode_page-code", UTF8.String(page.getPage()));
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}
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else {
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prop.put("mode", "3"); //access denied (no rights)
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}
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} else if(post.containsKey("preview")) {
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//preview the page
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if(hasRights) {
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prop.put("mode", "2");//preview
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prop.put("mode_commentMode", post.getInt("commentMode", 2));
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prop.putHTML("mode_pageid", pagename);
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prop.putHTML("mode_author", UTF8.String(author));
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prop.putHTML("mode_subject", post.get("subject",""));
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prop.put("mode_date", dateString(new Date()));
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prop.putWiki(sb.peers.mySeed().getPublicAddress(sb.peers.mySeed().getIP()), "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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else {
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prop.put("mode", "3"); //access denied (no rights)
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}
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}
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else if("try".equals(post.get("delete", ""))) {
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if(hasRights) {
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prop.put("mode", "4");
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prop.putHTML("mode_pageid", pagename);
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prop.putHTML("mode_author",UTF8.String(page.getAuthor()));
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prop.putHTML("mode_subject",UTF8.String(page.getSubject()));
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}
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else prop.put("mode", "3"); //access denied (no rights)
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}
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else if (post.containsKey("import")) {
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prop.put("mode", "5");
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prop.put("mode_state", "0");
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}
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else if (post.containsKey("xmlfile")) {
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prop.put("mode", "5");
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if(sb.blogDB.importXML(post.get("xmlfile$file"))) {
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prop.put("mode_state", "1");
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}
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else {
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prop.put("mode_state", "2");
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}
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}
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else {
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// show blog-entry/entries
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prop.put("mode", "0"); //viewing
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if(DEFAULT_PAGE.equals(pagename)) {
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// XXX: where are "peername" and "address" used in the template?
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// XXX: "clientname" is already set to the peername, no need for a new setting
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prop.putHTML("peername", sb.peers.mySeed().getName());
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prop.put("address", address);
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//index all entries
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putBlogDefault(prop, sb, address, start, num, hasRights, xml);
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}
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else {
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//only show 1 entry
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prop.put("mode_entries", "1");
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putBlogEntry(sb, prop, page, address, 0, hasRights, xml);
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}
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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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private static serverObjects putBlogDefault(
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final serverObjects prop,
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final Switchboard switchboard,
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final String address,
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int start,
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int num,
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final boolean hasRights,
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final boolean xml)
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{
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final Iterator<String> i = switchboard.blogDB.getBlogIterator(false);
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int count = 0; //counts how many entries are shown to the user
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if (xml) {
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num = 0;
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}
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final int nextstart = start+num; //indicates the starting offset for next results
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int prevstart = start-num; //indicates the starting offset for previous results
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while (i.hasNext() && (num == 0 || num > count)) {
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if(0 < start--) continue;
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putBlogEntry(
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switchboard,
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prop,
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switchboard.blogDB.readBlogEntry(i.next()),
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address,
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count++,
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hasRights,
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xml);
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}
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prop.put("mode_entries", count);
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if (i.hasNext()) {
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prop.put("mode_moreentries", "1"); //more entries are availible
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prop.put("mode_moreentries_start", nextstart);
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prop.put("mode_moreentries_num", num);
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} else {
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prop.put("moreentries", "0");
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}
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if (start > 0) {
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prop.put("mode_preventries", "1");
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if (prevstart < 0) {
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prevstart = 0;
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}
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prop.put("mode_preventries_start", prevstart);
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prop.put("mode_preventries_num", num);
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} else prop.put("mode_preventries", "0");
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return prop;
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}
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private static serverObjects putBlogEntry(
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final Switchboard sb,
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final serverObjects prop,
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final BlogBoard.BlogEntry entry,
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final String address,
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final int number,
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final boolean hasRights,
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final boolean xml)
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{
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prop.putHTML("mode_entries_" + number + "_subject", UTF8.String(entry.getSubject()));
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prop.putHTML("mode_entries_" + number + "_author", UTF8.String(entry.getAuthor()));
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// comments
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if (entry.getCommentMode() == 0) {
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prop.put("mode_entries_" + number + "_commentsactive", "0");
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} else {
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prop.put("mode_entries_" + number + "_commentsactive", "1");
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prop.put("mode_entries_" + number + "_commentsactive_pageid", entry.getKey());
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prop.put("mode_entries_" + number + "_commentsactive_address", address);
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prop.put("mode_entries_" + number + "_commentsactive_comments", entry.getCommentsSize());
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}
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prop.put("mode_entries_" + number + "_date", dateString(entry.getDate()));
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prop.put("mode_entries_" + number + "_rfc822date", HeaderFramework.formatRFC1123(entry.getDate()));
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prop.put("mode_entries_" + number + "_pageid", entry.getKey());
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prop.put("mode_entries_" + number + "_address", address);
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prop.put("mode_entries_" + number + "_ip", entry.getIp());
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if (xml) {
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prop.put("mode_entries_" + number + "_page", entry.getPage());
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prop.put("mode_entries_" + number + "_timestamp", entry.getTimestamp());
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} else {
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prop.putWiki(sb.peers.mySeed().getPublicAddress(sb.peers.mySeed().getIP()), "mode_entries_" + number + "_page", entry.getPage());
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}
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if (hasRights) {
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prop.put("mode_entries_" + number + "_admin", "1");
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prop.put("mode_entries_" + number + "_admin_pageid",entry.getKey());
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} else {
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prop.put("mode_entries_" + number + "_admin", "0");
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}
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return prop;
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}
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}
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