Add /ld updateprotocollib, improve version checking for nms

src/main/java/me/libraryaddict/disguise/commands/LibsDisguisesCommand.java

@@ -34,6 +34,7 @@ public class LibsDisguisesCommand implements CommandExecutor, TabCompleter {
         getCommands().add(new LDMetaInfo());
         getCommands().add(new LDDebugPlayer());
         getCommands().add(new LDUploadLogs());
+        getCommands().add(new LDUpdateProtocolLib());
     }
 
     protected ArrayList<String> filterTabs(ArrayList<String> list, String[] origArgs) {

src/main/java/me/libraryaddict/disguise/commands/libsdisguises/LDUpdateProtocolLib.java

@@ -0,0 +1,107 @@
+package me.libraryaddict.disguise.commands.libsdisguises;
+
+import com.comphenix.protocol.ProtocolLibrary;
+import me.libraryaddict.disguise.LibsDisguises;
+import me.libraryaddict.disguise.utilities.DisguiseUtilities;
+import me.libraryaddict.disguise.utilities.LibsPremium;
+import me.libraryaddict.disguise.utilities.plugin.PluginInformation;
+import me.libraryaddict.disguise.utilities.translations.LibsMsg;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.bukkit.scheduler.BukkitRunnable;
+
+import java.io.File;
+import java.io.InputStream;
+import java.lang.reflect.Method;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.StandardCopyOption;
+import java.util.Arrays;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+/**
+ * Created by libraryaddict on 30/06/2020.
+ */
+public class LDUpdateProtocolLib implements LDCommand {
+    private final AtomicBoolean updateInProgress = new AtomicBoolean(false);
+
+    @Override
+    public List<String> getTabComplete() {
+        return Arrays.asList("updateprotocollib");
+    }
+
+    @Override
+    public boolean hasPermission(CommandSender sender) {
+        return sender.isOp();
+    }
+
+    @Override
+    public String getPermission() {
+        return null;
+    }
+
+    @Override
+    public void onCommand(CommandSender sender, String[] args) {
+        if (updateInProgress.get()) {
+            sender.sendMessage(ChatColor.RED + "Update already in progress");
+            return;
+        }
+
+        sender.sendMessage(ChatColor.RED + "Please hold, now downloading..");
+
+        new BukkitRunnable() {
+            @Override
+            public void run() {
+                File protocolLibFile = null;
+
+                try {
+                    Method getFile = JavaPlugin.class.getDeclaredMethod("getFile");
+                    getFile.setAccessible(true);
+                    File theirFile = (File) getFile.invoke(ProtocolLibrary.getPlugin());
+                    File dest = new File("plugins/update/" + theirFile.getName());
+
+                    // We're connecting to spigot's API
+                    URL url = new URL(
+                            "https://ci.dmulloy2.net/job/ProtocolLib/lastSuccessfulBuild/artifact/target/ProtocolLib" +
+                                    ".jar");
+                    // Creating a connection
+                    HttpURLConnection con = (HttpURLConnection) url.openConnection();
+                    con.setRequestProperty("User-Agent", "libraryaddict/LibsDisguises");
+
+                    // Get the input stream, what we receive
+                    try (InputStream input = con.getInputStream()) {
+                        Files.copy(input, dest.toPath(), StandardCopyOption.REPLACE_EXISTING);
+                    }
+
+                    new BukkitRunnable() {
+                        @Override
+                        public void run() {
+                            sender.sendMessage(ChatColor.RED + "Update success! Restart server to finish update!");
+                        }
+                    }.runTask(LibsDisguises.getInstance());
+                }
+                catch (Exception ex) {
+                    ex.printStackTrace();
+
+                    new BukkitRunnable() {
+                        @Override
+                        public void run() {
+                            sender.sendMessage(ChatColor.RED + "Update failed, " + ex.getMessage());
+                        }
+                    }.runTask(LibsDisguises.getInstance());
+                }
+                finally {
+                    updateInProgress.set(false);
+                }
+            }
+        }.runTaskAsynchronously(LibsDisguises.getInstance());
+    }
+
+    @Override
+    public LibsMsg getHelp() {
+        return LibsMsg.LD_COMMAND_UPDATEPROTOCOLLIB;
+    }
+}