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Added expiration timer to sessions. Sessions will now last up to 10 minutes (by default) before removed, so you can quickly disconnect (or crash) and come back and still maintain your history.

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This commit is contained in:
sk89q 2011-05-01 17:37:05 -07:00
parent a18546d698
commit d71d4a8569
9 changed files with 198 additions and 36 deletions
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18
src/main/java/com/sk89q/worldedit/LocalSession.java
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@ -51,9 +51,11 @@ import com.sk89q.worldedit.regions.RegionSelector;
*/
public class LocalSession {
public static int MAX_HISTORY_SIZE = 15;
public static int EXPIRATION_GRACE = 600000;
private LocalConfiguration config;
private long expirationTime = 0;
private LocalWorld selectionWorld;
private RegionSelector selector = new CuboidRegionSelector();
private boolean placeAtPos1 = false;
@ -615,4 +617,20 @@ public class LocalSession {
return date.getBeginCalendar();
}
}
/**
* Update the last update time for calculating expiration.
*/
public void update() {
expirationTime = System.currentTimeMillis();
}
/**
* Returns whether this session has expired.
*
* @return
*/
public boolean hasExpired() {
return System.currentTimeMillis() - expirationTime > EXPIRATION_GRACE;
}
}

37
src/main/java/com/sk89q/worldedit/SessionCheck.java Normal file
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@ -0,0 +1,37 @@
// $Id$
/*
* WorldEdit
* Copyright (C) 2010, 2011 sk89q <http://www.sk89q.com>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit;
/**
* Used to discard old sessions.
*
* @author sk89q
*/
public interface SessionCheck {
/**
* Checks if a player is online.
*
* @param name
* @return
*/
public boolean isOnlinePlayer(String name);
}

120
src/main/java/com/sk89q/worldedit/WorldEdit.java
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@ -129,42 +129,46 @@ public class WorldEdit {
* @return
*/
public LocalSession getSession(LocalPlayer player) {
if (sessions.containsKey(player.getName())) {
return sessions.get(player.getName());
}
LocalSession session;
LocalSession session = new LocalSession(config);
// Set the limit on the number of blocks that an operation can
// change at once, or don't if the player has an override or there
// is no limit. There is also a default limit
if (!player.hasPermission("worldedit.limit.unrestricted")
&& config.maxChangeLimit > -1) {
// If the default limit is infinite but there is a maximum
// limit, make sure to not have it be overridden
if (config.defaultChangeLimit < 0) {
session.setBlockChangeLimit(config.maxChangeLimit);
} else {
// Bound the change limit
int limit = Math.min(config.defaultChangeLimit,
config.maxChangeLimit);
session.setBlockChangeLimit(limit);
synchronized (sessions) {
if (sessions.containsKey(player.getName())) {
return sessions.get(player.getName());
}
} else {
// No change limit or override
session.setBlockChangeLimit(config.defaultChangeLimit);
session = new LocalSession(config);
// Set the limit on the number of blocks that an operation can
// change at once, or don't if the player has an override or there
// is no limit. There is also a default limit
if (!player.hasPermission("worldedit.limit.unrestricted")
&& config.maxChangeLimit > -1) {
// If the default limit is infinite but there is a maximum
// limit, make sure to not have it be overridden
if (config.defaultChangeLimit < 0) {
session.setBlockChangeLimit(config.maxChangeLimit);
} else {
// Bound the change limit
int limit = Math.min(config.defaultChangeLimit,
config.maxChangeLimit);
session.setBlockChangeLimit(limit);
}
} else {
// No change limit or override
session.setBlockChangeLimit(config.defaultChangeLimit);
}
// Have the session use inventory if it's enabled and the player
// doesn't have an override
session.setUseInventory(config.useInventory
&& (!config.useInventoryOverride
|| !player.hasPermission("worldedit.inventory.unrestricted")));
// Remember the session
sessions.put(player.getName(), session);
}
// Have the session use inventory if it's enabled and the player
// doesn't have an override
session.setUseInventory(config.useInventory
&& (!config.useInventoryOverride
|| !player.hasPermission("worldedit.inventory.unrestricted")));
// Remember the session
sessions.put(player.getName(), session);
return session;
}
@ -175,7 +179,9 @@ public class WorldEdit {
* @return
*/
public boolean hasSession(LocalPlayer player) {
return sessions.containsKey(player.getName());
synchronized (sessions) {
return sessions.containsKey(player.getName());
}
}
/**
@ -726,14 +732,18 @@ public class WorldEdit {
* @param player
*/
public void removeSession(LocalPlayer player) {
sessions.remove(player.getName());
synchronized (sessions) {
sessions.remove(player.getName());
}
}
/**
* Remove all sessions.
*/
public void clearSessions() {
sessions.clear();
synchronized (sessions) {
sessions.clear();
}
}
/**
@ -788,9 +798,49 @@ public class WorldEdit {
*
* @param player
*/
@Deprecated
public void handleDisconnect(LocalPlayer player) {
forgetPlayer(player);
}
/**
*
* @param player
*/
public void markExpire(LocalPlayer player) {
synchronized (sessions) {
LocalSession session = sessions.get(player.getName());
if (session != null) {
session.update();
}
}
}
/**
* Forget a player.
*
* @param player
*/
public void forgetPlayer(LocalPlayer player) {
removeSession(player);
}
/*
* Flush expired sessions.
*/
public void flushExpiredSessions(SessionCheck checker) {
synchronized (sessions) {
Iterator<Map.Entry<String, LocalSession>> it = sessions.entrySet().iterator();
while (it.hasNext()) {
Map.Entry<String, LocalSession> entry = it.next();
if (entry.getValue().hasExpired()
&& !checker.isOnlinePlayer(entry.getKey())) {
it.remove();
}
}
}
}
/**
* Called on arm swing.

1
src/main/java/com/sk89q/worldedit/bukkit/BukkitConfiguration.java
View File

@ -82,6 +82,7 @@ public class BukkitConfiguration extends LocalConfiguration {
noOpPermissions = config.getBoolean("no-op-permissions", false);
LocalSession.MAX_HISTORY_SIZE = Math.max(15, config.getInt("history.size", 15));
LocalSession.EXPIRATION_GRACE = config.getInt("history.expiration", 10) * 60 * 1000;
String snapshotsDir = config.getString("snapshots.directory", "");
if (!snapshotsDir.trim().equals("")) {

51
src/main/java/com/sk89q/worldedit/bukkit/SessionTimer.java Normal file
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@ -0,0 +1,51 @@
// $Id$
/*
* WorldEdit
* Copyright (C) 2010, 2011 sk89q <http://www.sk89q.com>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.bukkit;
import org.bukkit.Server;
import org.bukkit.entity.Player;
import com.sk89q.worldedit.SessionCheck;
import com.sk89q.worldedit.WorldEdit;
/**
* Used to remove expired sessions in Bukkit.
*
* @author sk89q
*/
public class SessionTimer implements Runnable {
private WorldEdit worldEdit;
private SessionCheck checker;
public SessionTimer(WorldEdit worldEdit, final Server server) {
this.worldEdit = worldEdit;
this.checker = new SessionCheck() {
public boolean isOnlinePlayer(String name) {
Player player = server.getPlayer(name);
return player != null && player.isOnline();
}
};
}
public void run() {
worldEdit.flushExpiredSessions(checker);
}
}

2
src/main/java/com/sk89q/worldedit/bukkit/WorldEditPlayerListener.java
View File

@ -79,7 +79,7 @@ public class WorldEditPlayerListener extends PlayerListener {
*/
@Override
public void onPlayerQuit(PlayerQuitEvent event) {
plugin.getWorldEdit().handleDisconnect(wrapPlayer(event.getPlayer()));
plugin.getWorldEdit().markExpire(wrapPlayer(event.getPlayer()));
}
/**

3
src/main/java/com/sk89q/worldedit/bukkit/WorldEditPlugin.java
View File

@ -101,6 +101,9 @@ public class WorldEditPlugin extends JavaPlugin {
// Now we can register events!
registerEvents();
getServer().getScheduler().scheduleAsyncRepeatingTask(this,
new SessionTimer(controller, getServer()), 120, 120);
}
/**

1
src/main/java/com/sk89q/worldedit/tools/BrushTool.java
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@ -83,6 +83,7 @@ public class BrushTool implements TraceTool {
* Set the brush.
*
* @param brush
* @param perm
*/
public void setBrush(Brush brush, String perm) {
this.brush = brush;

1
src/main/resources/config.yml
View File

@ -52,6 +52,7 @@ saving:
history:
size: 15
expiration: 10
wand-item: 271
shell-save-type: