Share Custom News notification system for your .menu

LordPanic · May 5, 2021

Hey guys i was fooling arround with this one and decided to share it with you , i didnt test it on live server. It might have some issues feel free to point them out so i can fix them.

It shows the 5 latest news posts, on every restart it clears the oldests and it keeps the 5 recent.

Requirements : Your own .menu + custom menu command handlers <-- i made a share for that.

If you don't have custom menu command handlers you can either trigger it with another custom command handler like .news or use the on enter server show news html that is included on acis (i dont know about other projects).

credits : me

AdminNews.java

package net.sf.l2j.gameserver.handler.admincommandhandlers;

import net.sf.l2j.gameserver.custom.usermenu.menuhandlers.NewsHandler;
import net.sf.l2j.gameserver.handler.IAdminCommandHandler;
import net.sf.l2j.gameserver.model.actor.instance.Player;

/**
 * @author LordPanic
 *
 */
public class AdminNews implements IAdminCommandHandler
{

	private static final String[] ADMIN_COMMANDS =
	{
		"admin_news"
	};
	
	@Override
	public boolean useAdminCommand(String command, Player activeChar)
	{
		if (command.equals("admin_news"))
	       {
				NewsHandler.adminNewsWindow(activeChar);
	       }
		return false;
	}

	
	
	
	@Override
	public String[] getAdminCommandList()
	{
		
		return ADMIN_COMMANDS;
	}
	
}

AdminCommandHandler.java

+registerAdminCommandHandler(new AdminNews());

NewsHandler.java

package net.sf.l2j.gameserver.custom.usermenu.menuhandlers;
 
 
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;
import java.util.StringTokenizer;
import java.util.logging.Logger;
 
 
import net.sf.l2j.L2DatabaseFactory;
import net.sf.l2j.gameserver.model.WorldObject;
import net.sf.l2j.gameserver.model.actor.instance.Player;
import net.sf.l2j.gameserver.network.clientpackets.Say2;
import net.sf.l2j.gameserver.network.serverpackets.CreatureSay;
import net.sf.l2j.gameserver.network.serverpackets.NpcHtmlMessage;
import net.sf.l2j.gameserver.util.Broadcast;


 
/**
 * @author LordPanic
 * 
 */
public class NewsHandler
{	

private final List<NewsInfo> _list = new ArrayList<>();	
String clcDB = "DELETE FROM news_server WHERE char_id NOT IN ( SELECT char_id FROM ( SELECT char_id FROM news_server ORDER BY char_id DESC LIMIT 5 ) foo )";
String loadDt = "SELECT charname,content,content_date,categ FROM news_server ORDER BY content_date DESC LIMIT 5";
static String insertDt = "INSERT INTO news_server (charname,content,content_date,categ) VALUES (?,?,?,?)";
private static final Logger _log = Logger.getLogger(WorldObject.class.getName());
 
public static NewsHandler getInstance()
{
	return SingletonHolder._instance;
}

public class NewsInfo{
	public String name;
	public String content;
	public Long date;
	public String category;
}


public void parseCmd(String command, Player activeChar)
{
	StringTokenizer st = new StringTokenizer(command, " ");
	String actualCommand = st.nextToken();
 
	if(activeChar.isGM()) 
		activeChar.sendMessage("[CMD]: "+command);
 
	if(actualCommand.startsWith("_menuNewsPage")) {
					
		showNews(activeChar);
		
	}else if(actualCommand.startsWith("_menuNewsPost")) {
		String cntpost =  "";
		String nameOFchar = activeChar.getName();
		Long currentTime = Calendar.getInstance().getTimeInMillis();
		String catgPost = "";
 
		if (st.hasMoreTokens())
			catgPost = st.nextToken();
		
		int cmdPst = actualCommand.length();
		int lnPst = catgPost.length();		
		int ttlSb = cmdPst + lnPst;
		cntpost = command.substring(ttlSb);
		
		adminWriteToDB(nameOFchar,cntpost.substring(2),currentTime,catgPost);
		Broadcast.toAllOnlinePlayers(new CreatureSay(0, Say2.CRITICAL_ANNOUNCE, "", "["+nameOFchar+"] made a new post. Check your .menu -> News"));
		_list.clear();
		reloadData();

	}
}
 
public void reloadData() {
	 
	try (Connection con = L2DatabaseFactory.getInstance().getConnection();Statement statement = con.createStatement();
		ResultSet rset = statement.executeQuery(loadDt);)
	{			
		while (rset.next())
		{			
			NewsInfo nf = new NewsInfo();
			nf.name = rset.getString("charname");
			nf.content = rset.getString("content");
			nf.date = rset.getLong("content_date");
			nf.category = rset.getString("categ");
			
			_list.add(nf);	
		}		
		_log.info("NewsHandler: Loaded : ["+_list.size()+"] posts");
	}
	catch (SQLException e)
	{
		_log.info("NewsHandler: Couldn't load NewsList.");
	}
}

public void cleanNewsdb() {
	
	try (Connection con = L2DatabaseFactory.getInstance().getConnection();Statement statement = con.createStatement();)
	{
		statement.execute(clcDB);		
		
		_log.info("NewsHandler: Older posts got deleted.");
	}catch (SQLException e) {
		_log.info("NewsHandler: Error while deleting excess data.");
	}
	
}

public void showNews(Player player) {
final StringBuilder sb = new StringBuilder();
for(NewsInfo tempInfo : _list) {
	if(tempInfo == null)
		break;

String cnvHolder = 	ctgConv(tempInfo.name,tempInfo.date,tempInfo.category);	

sb.append(cnvHolder);
sb.append("<img src=L2UI.SquareGray width=260 height=1>");
sb.append("<table width=260 bgcolor=\"000000\">");
sb.append("<tr><td><font color=b09979>"+tempInfo.content.replaceAll("\\s+"," ")+"</font></td></tr>");					
sb.append("</table>");
sb.append("<img src=L2UI.SquareGray width=260 height=1><br>");

}
NpcHtmlMessage html = new NpcHtmlMessage(0);
html.setFile("data/html/mods/user/news_menu.htm");
html.replace("%newslist%", sb.toString());
player.sendPacket(html);	

}


public static void adminNewsWindow(Player player) {
	final NpcHtmlMessage html = new NpcHtmlMessage(0);
	html.setFile("data/html/mods/user/adminnews_menu.htm");
	player.sendPacket(html);
}
 
private static void adminWriteToDB(String charName,String cont,long dateposted,String catg) {
	try (Connection con = L2DatabaseFactory.getInstance().getConnection();PreparedStatement statement = con.prepareStatement(insertDt);)
	{						
		statement.setString(1, charName);
		statement.setString(2, cont);
		statement.setLong(3, dateposted);
		statement.setString(4, catg);
		statement.execute();
	}
	catch (SQLException e)
	{
		_log.info("NewsHandler: couldn't insert data to DB.");
	}
 
}

private static String ctgConv(String nm,long dt,String ctgr) {
	String otpVl = "";
	switch(ctgr) {
		case "Important":
			 otpVl = "<br><font color=F33B3B>"+ctgr+"</font>&nbsp;&nbsp;&nbsp;"+"<font color=b09979>By</font>&nbsp;&nbsp;<font color=F2F5A9>"+nm+"</font>&nbsp;&nbsp;&nbsp;&nbsp;"+"<font color=AB40A0>"+new SimpleDateFormat("dd MMMM HH:mm").format(dt)+"</font><br1>";
			return otpVl;
		case "Patch":
			 otpVl = "<br><font color=6CDA4B>"+ctgr+"</font>&nbsp;&nbsp;&nbsp;"+"<font color=b09979>By</font>&nbsp;&nbsp;<font color=F2F5A9>"+nm+"</font>&nbsp;&nbsp;&nbsp;&nbsp;"+"<font color=AB40A0>"+new SimpleDateFormat("dd MMMM HH:mm").format(dt)+"</font><br1>"; 
			 return otpVl;
		case "Event":
			 otpVl = "<br><font color=26BEF5>"+ctgr+"</font>&nbsp;&nbsp;&nbsp;"+"<font color=b09979>By</font>&nbsp;&nbsp;<font color=F2F5A9>"+nm+"</font>&nbsp;&nbsp;&nbsp;&nbsp;"+"<font color=AB40A0>"+new SimpleDateFormat("dd MMMM HH:mm").format(dt)+"</font><br1>";  
			return otpVl;
	}	
	return "";	
}
 
 
private static class SingletonHolder
{
	protected static final NewsHandler _instance = new NewsHandler();
}
}

GameServer.java

StringUtil.printSection("News");
NewsHandler.getInstance().cleanNewsdb();
NewsHandler.getInstance().reloadData();

Html loc -> \gameserver\data\html\mods\user

adminnews_menu.htm

<html><title>Admin - News</title><body><center>
<center>
	<table width=260>
		<tr>
			<td><button value="Main" action="bypass -h admin_admin" width=65 height=19 back="L2UI_ch3.smallbutton2_over" fore="L2UI_ch3.smallbutton2"></td>
			<td><button value="Game" action="bypass -h admin_admin2" width=65 height=19 back="L2UI_ch3.smallbutton2_over" fore="L2UI_ch3.smallbutton2"></td>
			<td><button value="Effects" action="bypass -h admin_admin3" width=65 height=19 back="L2UI_ch3.smallbutton2_over" fore="L2UI_ch3.smallbutton2"></td>
			<td><button value="Server" action="bypass -h admin_admin4" width=65 height=19 back="L2UI_ch3.smallbutton2_over" fore="L2UI_ch3.smallbutton2"></td>
		</tr>
	</table>
		<br>
<img src=L2UI.SquareGray width=260 height=1>

<br><img src="L2UI_CH3.herotower_deco" width=256 height=32><br>
<img src=L2UI.SquareGray width=260 height=1>
<br>New post:<combobox width=120 height=10 var="cat" list=Important;Patch;Event;
<table width=240>
		<tr><td align=center FIXWIDTH=666><MultiEdit var ="cntpost" width=256 height=100></td></tr>	

		<tr><td align=center><button value="confirm" action="bypass -h _menuNewsPost $cat $cntpost" width=55 height=15 back="sek.cbui94" fore="sek.cbui92"></td></tr>
	</table>
	<br>

</center></body></html>

news_menu.html

<html><title>User Menu - News</title><body><center>
<center>
	<table width=260>
		<tr>
			<td><button value="Home" action="bypass -h _menuHomePage" width=65 height=19 back="L2UI_ch3.smallbutton2_over" fore="L2UI_ch3.smallbutton2"></td>
			<td><button value="Premium" action="bypass -h _menuVipPage" width=65 height=19 back="L2UI_ch3.smallbutton2_over" fore="L2UI_ch3.smallbutton2"></td>
			<td><button value="Buffs" action="bypass -h _menuBuffsPage" width=65 height=19 back="L2UI_ch3.smallbutton2_over" fore="L2UI_ch3.smallbutton2"></td>
			<td><button value="News" action="bypass -h _menuNewsPage" width=65 height=19 back="L2UI_ch3.smallbutton2_over" fore="L2UI_ch3.smallbutton2"></td>
		</tr>
	</table>
		<br>
<img src=L2UI.SquareGray width=260 height=1>

<br><img src="L2UI_CH3.herotower_deco" width=256 height=32><br>
<img src=L2UI.SquareGray width=260 height=1>
<table width=260 height=27 bgcolor="000000">
	<tr>
	<td align=center width=260><font color=b09979>Latest News</font></td>
</tr>
</table>
<img src=L2UI.SquareGray width=260 height=1>
<br><br>
</center>

%newslist%

</body></html>

html loc -> \gameserver\data\html\admin

main_menu.html

<td><button value="Get Buffs" action="bypass -h admin_getbuffs $menu_command" width=55 height=15 back="sek.cbui94" fore="sek.cbui92"></td>
+<td><button value="News" action="bypass -h admin_news" width=55 height=15 back="sek.cbui94" fore="sek.cbui92"></td>

adminCommands.xml

+<aCar name="admin_news" accessLevel="7"/>

SQL

CREATE TABLE IF NOT EXISTS `news_server` (
  `char_id` int(11) NOT NULL AUTO_INCREMENT,
  `charname` varchar(20) DEFAULT NULL,
  `content` text DEFAULT NULL,
  `content_date` bigint(20) DEFAULT NULL,
  `categ` varchar(50) DEFAULT NULL,
  PRIMARY KEY (`char_id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=latin1;

y i know, char_id doesnt make sense post_id would be the ideal name. Too lazy to change it.

Edited May 10, 2021 by LordPanic

Rootware · May 6, 2021

Not sure, but bypass string have limitation in 255 symbols. Isn't it? Maybe better to use WriteBBS command and have ability to input large texts?

Nightw0lf · May 6, 2021

13 hours ago, LordPanic said:

DELETE FROM news_server WHERE char_id NOT IN ( SELECT char_id FROM ( SELECT char_id FROM news_server ORDER BY char_id DESC LIMIT 5 ) foo )

foo

13 hours ago, LordPanic said:

PreparedStatement statement = con.prepareStatement("INSERT INTO news_server (charname,content,content_date) VALUES (?,?,?)");

13 hours ago, LordPanic said:

statement.close();

13 hours ago, LordPanic said:

PreparedStatement statement = con.prepareStatement("SELECT charname,content,content_date FROM news_server ORDER BY content_date DESC LIMIT 5"); ResultSet rset = statement.executeQuery();

13 hours ago, LordPanic said:

Broadcast.toAllOnlinePlayers(new CreatureSay(0, Say2.CRITICAL_ANNOUNCE, "", "["+nameOFchar+"] made a new post. Check your .menu -> News"));

spam connections and stress testing the database on live servers

13 hours ago, LordPanic said:

rset.close(); statement.close();

time travel back in 2009, thank you for bringing back memories.

@Kara you cant write better queries, change my mind.

find the differences

https://stackoverflow.com/a/8066594

https://stackoverflow.com/q/22671697

LordPanic · May 6, 2021

2 hours ago, Rootware said:

Not sure, but bypass string have limitation in 255 symbols. Isn't it? Maybe better to use WriteBBS command and have ability to input large texts?

True, menu window is small compared to community board so it's better to keep it with 255 char limit otherwise it would be too much.

Rootware · May 6, 2021

1 hour ago, LordPanic said:

True, menu window is small compared to community board so it's better to keep it with 255 char limit otherwise it would be too much.

So, in your current version it's looks like Server Twitter.

Edited May 6, 2021 by Rootware

LordPanic · May 10, 2021

Updated: Added 3 categories [Important,Patch,Event], u can add as many u want it's up to you.

Char limit is 255 - (length of command + length of category).

I also decided to share custom command menu handlers

Queries got fixed thanks to @Nightwolf.

Edited May 10, 2021 by LordPanic

Share Custom News notification system for your .menu

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