refactor: Move update checker to core

feat: Add permission for tracing

worldedit-core/src/main/java/com/fastasyncworldedit/core/util/UpdateNotification.java

@@ -0,0 +1,80 @@
+package com.fastasyncworldedit.core.util;
+
+import com.fastasyncworldedit.core.Fawe;
+import com.fastasyncworldedit.core.FaweVersion;
+import com.fastasyncworldedit.core.configuration.Caption;
+import com.fastasyncworldedit.core.configuration.Settings;
+import com.sk89q.worldedit.extension.platform.Actor;
+import com.sk89q.worldedit.internal.util.LogManagerCompat;
+import com.sk89q.worldedit.util.formatting.text.TextComponent;
+import com.sk89q.worldedit.util.formatting.text.event.ClickEvent;
+import org.apache.logging.log4j.Logger;
+import org.w3c.dom.Document;
+
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import java.net.URL;
+
+public class UpdateNotification {
+
+    private static final Logger LOGGER = LogManagerCompat.getLogger();
+
+    private static boolean hasUpdate;
+    private static String faweVersion = "";
+
+    /**
+     * Check whether a new build with a higher build number than the current build is available.
+     */
+    public static void doUpdateCheck() {
+        if (Settings.IMP.ENABLED_COMPONENTS.UPDATE_NOTIFICATIONS) {
+            try {
+                DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
+                DocumentBuilder db = dbf.newDocumentBuilder();
+                Document doc = db.parse(new URL("https://ci.athion.net/job/FastAsyncWorldEdit-1.17/api/xml/").openStream());
+                faweVersion = doc.getElementsByTagName("lastSuccessfulBuild").item(0).getFirstChild().getTextContent();
+                FaweVersion faweVersion = Fawe.get().getVersion();
+                if (faweVersion.build == 0) {
+                    LOGGER.warn("You are using a snapshot or a custom version of FAWE. This is not an official build distributed " +
+                            "via https://www.spigotmc.org/resources/13932/");
+                    return;
+                }
+                if (faweVersion.build < Integer.parseInt(UpdateNotification.faweVersion)) {
+                    hasUpdate = true;
+                    int versionDifference = Integer.parseInt(UpdateNotification.faweVersion) - faweVersion.build;
+                    LOGGER.warn(
+                            "An update for FastAsyncWorldEdit is available. You are {} build(s) out of date.\nYou are running " +
+                                    "version {}, the latest version is {}-{}.\nUpdate at https://www.spigotmc.org/resources/13932/",
+                            versionDifference,
+                            faweVersion.toString(),
+                            faweVersion.getSimpleVersionName(),
+                            UpdateNotification.faweVersion
+                    );
+                }
+            } catch (Exception e) {
+                LOGGER.error("Unable to check for updates. Skipping.");
+            }
+
+        }
+    }
+
+    /**
+     * Trigger an update notification based on captions. Useful to notify server administrators ingame.
+     *
+     * @param actor The player to notify.
+     */
+    public static void doUpdateNotification(Actor actor) {
+        if (Settings.IMP.ENABLED_COMPONENTS.UPDATE_NOTIFICATIONS) {
+            if (actor.hasPermission("fawe.admin") && UpdateNotification.hasUpdate) {
+                FaweVersion faweVersion = Fawe.get().getVersion();
+                int versionDifference = Integer.parseInt(UpdateNotification.faweVersion) - faweVersion.build;
+                actor.print(Caption.of("fawe.info.update-available", versionDifference, faweVersion.toString(),
+                        faweVersion.getSimpleVersionName() + "-" + UpdateNotification.faweVersion,
+                        TextComponent
+                                .of("https://www.spigotmc.org/resources/13932/")
+                                .clickEvent(ClickEvent.openUrl("https://www.spigotmc.org/resources/13932/"))
+                ));
+            }
+        }
+    }
+
+}

worldedit-core/src/main/java/com/sk89q/worldedit/command/WorldEditCommands.java

@@ -23,6 +23,7 @@ import com.fastasyncworldedit.core.Fawe;
 import com.fastasyncworldedit.core.FaweVersion;
 import com.fastasyncworldedit.core.configuration.Caption;
 import com.fastasyncworldedit.core.configuration.Settings;
+import com.fastasyncworldedit.core.util.UpdateNotification;
 import com.intellectualsites.paster.IncendoPaster;
 import com.sk89q.worldedit.LocalSession;
 import com.sk89q.worldedit.WorldEdit;
@@ -98,6 +99,7 @@ public class WorldEditCommands {
         }
 
         actor.printInfo(TextComponent.of("Wiki: https://github.com/IntellectualSites/FastAsyncWorldEdit-Documentation/wiki"));
+        UpdateNotification.doUpdateNotification(actor);
         //FAWE end
 
         PlatformManager pm = we.getPlatformManager();
@@ -187,6 +189,7 @@ public class WorldEditCommands {
             name = "trace",
             desc = "Toggles trace hook"
     )
+    @CommandPermissions(value = "worldedit.trace", queued = false)
     void trace(
             Actor actor, LocalSession session,
             @Arg(desc = "The mode to set the trace hook to", def = "")

worldedit-core/src/main/java/com/sk89q/worldedit/command/util/CommandPermissions.java

@@ -36,6 +36,8 @@ public @interface CommandPermissions {
      */
     String[] value() default {};
 
+    //FAWE start
     boolean queued() default true;
+    //FAWE end
 
 }