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4db34eea73
yacy_search_server/htroot/Blog.java
orbiter 1d8d51075c refactoring: 
- removed the plasma package. The name of that package came from a very early pre-version of YaCy, even before YaCy was named AnomicHTTPProxy. The Proxy project introduced search for cache contents using class files that had been developed during the plasma project. Information from 2002 about plasma can be found here:
http://web.archive.org/web/20020802110827/http://anomic.de/AnomicPlasma/index.html
We stil have one class that comes mostly unchanged from the plasma project, the Condenser class. But this is now part of the document package and all other classes in the plasma package can be assigned to other packages.
- cleaned up the http package: better structure of that class and clean isolation of server and client classes. The old HTCache becomes part of the client sub-package of http.
- because the plasmaSwitchboard is now part of the search package all servlets had to be touched to declare a different package source.

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6232 6c8d7289-2bf4-0310-a012-ef5d649a1542
2009-07-19 20:37:44 +00:00

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// Blog.java
// -----------------------
// part of YACY
// (C) by Michael Peter Christen; mc@yacy.net
// first published on http://www.anomic.de
// Frankfurt, Germany, 2004
//
// This File is contributed by Jan Sandbrink
// Contains contributions from Marc Nause [MN]
// last change: 10.01.2009
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
// You must compile this file with
// javac -classpath .:../classes Blog.java
// if the shell's current path is HTROOT
import java.io.UnsupportedEncodingException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import de.anomic.data.blogBoard;
import de.anomic.data.userDB;
import de.anomic.http.metadata.HeaderFramework;
import de.anomic.http.metadata.RequestHeader;
import de.anomic.kelondro.util.DateFormatter;
import de.anomic.search.Switchboard;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.yacy.yacyNewsPool;
import de.anomic.yacy.yacyNewsRecord;
public class Blog {
private static final String DEFAULT_PAGE = "blog_default";
private static SimpleDateFormat SimpleFormatter = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
// TODO: make userdefined date/time-strings (localisation)
public static String dateString(final Date date) {
return SimpleFormatter.format(date);
}
public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
final Switchboard sb = (Switchboard) env;
final serverObjects prop = new serverObjects();
blogBoard.BlogEntry page = null;
boolean hasRights = sb.verifyAuthentication(header, true);
//final int display = (hasRights || post == null) ? 1 : post.getInt("display", 0);
//prop.put("display", display);
prop.put("display", 1); // Fixed to 1
final boolean xml = (header.get(HeaderFramework.CONNECTION_PROP_PATH)).endsWith(".xml");
final String address = sb.peers.mySeed().getPublicAddress();
if(hasRights) {
prop.put("mode_admin", "1");
} else {
prop.put("mode_admin", "0");
}
if (post == null) {
prop.putHTML("peername", sb.peers.mySeed().getName());
prop.put("address", address);
return putBlogDefault(prop, sb, address, 0, 10, hasRights, xml);
}
final int start = post.getInt("start",0); //indicates from where entries should be shown
final int num = post.getInt("num",10); //indicates how many entries should be shown
if(!hasRights){
final userDB.Entry userentry = sb.userDB.proxyAuth(header.get(RequestHeader.AUTHORIZATION, "xxxxxx"));
if(userentry != null && userentry.hasRight(userDB.Entry.BLOG_RIGHT)){
hasRights=true;
} else if(post.containsKey("login")) {
//opens login window if login link is clicked - contrib [MN]
prop.put("AUTHENTICATE","admin log-in");
}
}
String pagename = post.get("page", DEFAULT_PAGE);
final String ip = header.get(HeaderFramework.CONNECTION_PROP_CLIENTIP, "127.0.0.1");
String StrAuthor = post.get("author", "");
if (StrAuthor.equals("anonymous")) {
StrAuthor = sb.blogDB.guessAuthor(ip);
if (StrAuthor == null || StrAuthor.length() == 0) {
if (sb.peers.mySeed() == null) {
StrAuthor = "anonymous";
} else {
StrAuthor = sb.peers.mySeed().get("Name", "anonymous");
}
}
}
byte[] author;
try {
author = StrAuthor.getBytes("UTF-8");
} catch (final UnsupportedEncodingException e) {
author = StrAuthor.getBytes();
}
if(hasRights && post.containsKey("delete") && post.get("delete").equals("sure")) {
page = sb.blogDB.readBlogEntry(pagename);
final Iterator<String> i = page.getComments().iterator();
while(i.hasNext()) {
sb.blogCommentDB.delete(i.next());
}
sb.blogDB.deleteBlogEntry(pagename);
pagename = DEFAULT_PAGE;
}
if (post.containsKey("discard")) {
pagename = DEFAULT_PAGE;
}
if (post.containsKey("submit") && (hasRights)) {
// store a new/edited blog-entry
byte[] content;
try {
content = post.get("content", "").getBytes("UTF-8");
} catch (final UnsupportedEncodingException e) {
content = post.get("content", "").getBytes();
}
Date date = null;
ArrayList<String> comments = null;
//set name for new entry or date for old entry
if(pagename.equals(DEFAULT_PAGE)) {
pagename = String.valueOf(System.currentTimeMillis());
} else {
page = sb.blogDB.readBlogEntry(pagename);
comments = page.getComments();
date = page.getDate();
}
final String commentMode = post.get("commentMode", "2");
final String StrSubject = post.get("subject", "");
byte[] subject;
try {
subject = StrSubject.getBytes("UTF-8");
} catch (final UnsupportedEncodingException e) {
subject = StrSubject.getBytes();
}
sb.blogDB.writeBlogEntry(sb.blogDB.newEntry(pagename, subject, author, ip, date, content, comments, commentMode));
// create a news message
final HashMap<String, String> map = new HashMap<String, String>();
map.put("page", pagename);
map.put("subject", StrSubject.replace(',', ' '));
map.put("author", StrAuthor.replace(',', ' '));
sb.peers.newsPool.publishMyNews(yacyNewsRecord.newRecord(sb.peers.mySeed(), yacyNewsPool.CATEGORY_BLOG_ADD, map));
}
page = sb.blogDB.readBlogEntry(pagename); //maybe "if(page == null)"
if (post.containsKey("edit")) {
//edit an entry
if(hasRights) {
try {
prop.put("mode", "1"); //edit
prop.put("mode_commentMode", page.getCommentMode());
prop.putHTML("mode_author", new String(page.getAuthor(),"UTF-8"));
prop.put("mode_pageid", page.getKey());
prop.putHTML("mode_subject", new String(page.getSubject(), "UTF-8"));
prop.put("mode_page-code", new String(page.getPage(), "UTF-8"));
} catch (final UnsupportedEncodingException e) {}
}
else {
prop.put("mode", "3"); //access denied (no rights)
}
}
else if(post.containsKey("preview")) {
//preview the page
if(hasRights) {
prop.put("mode", "2");//preview
prop.put("mode_commentMode", post.getInt("commentMode", 2));
prop.putHTML("mode_pageid", pagename);
try {
prop.putHTML("mode_author", new String(author, "UTF-8"));
} catch (final UnsupportedEncodingException e) {
prop.putHTML("mode_author", new String(author));
}
prop.putHTML("mode_subject", post.get("subject",""));
prop.put("mode_date", dateString(new Date()));
prop.putWiki("mode_page", post.get("content", ""));
prop.putHTML("mode_page-code", post.get("content", ""));
}
else {
prop.put("mode", "3"); //access denied (no rights)
}
}
else if(post.get("delete", "").equals("try")) {
if(hasRights) {
prop.put("mode", "4");
prop.putHTML("mode_pageid", pagename);
try {
prop.putHTML("mode_author",new String(page.getAuthor(), "UTF-8"));
} catch (final UnsupportedEncodingException e) {
prop.putHTML("mode_author",new String(page.getAuthor()));
}
try {
prop.putHTML("mode_subject",new String(page.getSubject(),"UTF-8"));
} catch (final UnsupportedEncodingException e) {
prop.putHTML("mode_subject",new String(page.getSubject()));
}
}
else prop.put("mode", "3"); //access denied (no rights)
}
else if (post.containsKey("import")) {
prop.put("mode", "5");
prop.put("mode_state", "0");
}
else if (post.containsKey("xmlfile")) {
prop.put("mode", "5");
if(sb.blogDB.importXML(post.get("xmlfile$file"))) {
prop.put("mode_state", "1");
}
else {
prop.put("mode_state", "2");
}
}
else {
// show blog-entry/entries
prop.put("mode", "0"); //viewing
if(pagename.equals(DEFAULT_PAGE)) {
// XXX: where are "peername" and "address" used in the template?
// XXX: "clientname" is already set to the peername, no need for a new setting
prop.putHTML("peername", sb.peers.mySeed().getName());
prop.put("address", address);
//index all entries
putBlogDefault(prop, sb, address, start, num, hasRights, xml);
}
else {
//only show 1 entry
prop.put("mode_entries", "1");
putBlogEntry(prop, page, address, 0, hasRights, xml);
}
}
// return rewrite properties
return prop;
}
private static serverObjects putBlogDefault(
final serverObjects prop,
final Switchboard switchboard,
final String address,
int start,
int num,
final boolean hasRights,
final boolean xml)
{
final Iterator<String> i = switchboard.blogDB.getBlogIterator(false);
String pageid;
int count = 0; //counts how many entries are shown to the user
if(xml) num = 0;
final int nextstart = start+num; //indicates the starting offset for next results
int prevstart = start-num; //indicates the starting offset for previous results
boolean prev = false; //indicates if there were previous comments to the ones that are dispalyed
if (start > 0) prev = true;
while(i.hasNext() && (num == 0 || num > count)) {
pageid = i.next();
if(0 < start--) continue;
putBlogEntry(
prop,
switchboard.blogDB.readBlogEntry(pageid),
address,
count++,
hasRights,
xml);
}
prop.put("mode_entries", count);
if(i.hasNext()) {
prop.put("mode_moreentries", "1"); //more entries are availible
prop.put("mode_moreentries_start", nextstart);
prop.put("mode_moreentries_num", num);
} else {
prop.put("moreentries", "0");
}
if(prev) {
prop.put("mode_preventries", "1");
if (prevstart < 0) prevstart = 0;
prop.put("mode_preventries_start", prevstart);
prop.put("mode_preventries_num", num);
} else prop.put("mode_preventries", "0");
return prop;
}
private static serverObjects putBlogEntry(
final serverObjects prop,
final blogBoard.BlogEntry entry,
final String address,
final int number,
final boolean hasRights,
final boolean xml)
{
// subject
try {
prop.putHTML("mode_entries_" + number + "_subject", new String(entry.getSubject(),"UTF-8"));
} catch (final UnsupportedEncodingException e) {
prop.putHTML("mode_entries_" + number + "_subject", new String(entry.getSubject()));
}
// author
try {
prop.putHTML("mode_entries_" + number + "_author", new String(entry.getAuthor(),"UTF-8"));
} catch (final UnsupportedEncodingException e) {
prop.putHTML("mode_entries_" + number + "_author", new String(entry.getAuthor()));
}
// comments
if(entry.getCommentMode() == 0) {
prop.put("mode_entries_" + number + "_commentsactive", "0");
} else {
prop.put("mode_entries_" + number + "_commentsactive", "1");
prop.put("mode_entries_" + number + "_commentsactive_pageid", entry.getKey());
prop.put("mode_entries_" + number + "_commentsactive_address", address);
prop.put("mode_entries_" + number + "_commentsactive_comments", entry.getCommentsSize());
}
prop.put("mode_entries_" + number + "_date", dateString(entry.getDate()));
prop.put("mode_entries_" + number + "_rfc822date", DateFormatter.formatRFC1123(entry.getDate()));
prop.put("mode_entries_" + number + "_pageid", entry.getKey());
prop.put("mode_entries_" + number + "_address", address);
prop.put("mode_entries_" + number + "_ip", entry.getIp());
if(xml) {
prop.put("mode_entries_" + number + "_page", entry.getPage());
prop.put("mode_entries_" + number + "_timestamp", entry.getTimestamp());
} else {
prop.putWiki("mode_entries_" + number + "_page", entry.getPage());
}
if(hasRights) {
prop.put("mode_entries_" + number + "_admin", "1");
prop.put("mode_entries_" + number + "_admin_pageid",entry.getKey());
} else {
prop.put("mode_entries_" + number + "_admin", "0");
}
return prop;
}
}
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