Commands now have the ability to set a permission required before execution

By: Dinnerbone <dinnerbone@dinnerbone.com>

paper-api/src/main/java/org/bukkit/command/defaults/PluginsCommand.java

@@ -0,0 +1,43 @@
+package org.bukkit.command.defaults;
+
+import java.util.Arrays;
+import org.bukkit.ChatColor;
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.plugin.Plugin;
+
+public class PluginsCommand extends Command {
+    public PluginsCommand(String name) {
+        super(name);
+        this.description = "Gets a list of plugins running on the server";
+        this.usageMessage = "/plugins";
+        this.setPermission("bukkit.command.plugins");
+        this.setAliases(Arrays.asList("pl"));
+    }
+
+    @Override
+    public boolean execute(CommandSender sender, String currentAlias, String[] args) {
+        if (!testPermission(sender)) return true;
+        
+        sender.sendMessage("Plugins: " + getPluginList());
+        return true;
+    }
+
+    private String getPluginList() {
+        StringBuilder pluginList = new StringBuilder();
+        Plugin[] plugins = Bukkit.getPluginManager().getPlugins();
+        
+        for (Plugin plugin : plugins) {
+            if (pluginList.length() > 0) {
+                pluginList.append(ChatColor.WHITE);
+                pluginList.append(", ");
+            }
+            
+            pluginList.append(plugin.isEnabled() ? ChatColor.GREEN : ChatColor.RED);
+            pluginList.append(plugin.getDescription().getName());
+        }
+
+        return pluginList.toString();
+    }
+}

paper-api/src/main/java/org/bukkit/command/defaults/ReloadCommand.java

@@ -0,0 +1,27 @@
+package org.bukkit.command.defaults;
+
+import java.util.Arrays;
+import org.bukkit.ChatColor;
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+
+public class ReloadCommand extends Command {
+    public ReloadCommand(String name) {
+        super(name);
+        this.description = "Reloads the server configuration and plugins";
+        this.usageMessage = "/reload";
+        this.setPermission("bukkit.command.reload");
+        this.setAliases(Arrays.asList("rl"));
+    }
+
+    @Override
+    public boolean execute(CommandSender sender, String currentAlias, String[] args) {
+        if (!testPermission(sender)) return true;
+
+        Bukkit.reload();
+        sender.sendMessage(ChatColor.GREEN + "Reload complete.");
+
+        return true;
+    }
+}

paper-api/src/main/java/org/bukkit/command/defaults/VersionCommand.java

@@ -0,0 +1,90 @@
+package org.bukkit.command.defaults;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import org.bukkit.ChatColor;
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.PluginDescriptionFile;
+
+public class VersionCommand extends Command {
+    public VersionCommand(String name) {
+        super(name);
+        
+        this.description = "Gets the version of this server including any plugins in use";
+        this.usageMessage = "/version [plugin name]";
+        this.setPermission("bukkit.command.version");
+        this.setAliases(Arrays.asList("ver", "about"));
+    }
+
+    @Override
+    public boolean execute(CommandSender sender, String currentAlias, String[] args) {
+        if (!testPermission(sender)) return true;
+        
+        if (args.length == 0) {
+            sender.sendMessage("This server is running " + ChatColor.GREEN + Bukkit.getName() + ChatColor.WHITE + " version " + ChatColor.GREEN + Bukkit.getVersion());
+            sender.sendMessage("This server is also sporting some funky dev build of Bukkit!");
+        } else {
+            StringBuilder name = new StringBuilder();
+
+            for (String arg : args) {
+                if (name.length() > 0) {
+                    name.append(' ');
+                }
+                
+                name.append(arg);
+            }
+
+            Plugin plugin = Bukkit.getPluginManager().getPlugin(name.toString());
+
+            if (plugin != null) {
+                PluginDescriptionFile desc = plugin.getDescription();
+                sender.sendMessage(ChatColor.GREEN + desc.getName() + ChatColor.WHITE + " version " + ChatColor.GREEN + desc.getVersion());
+
+                if (desc.getDescription() != null) {
+                    sender.sendMessage(desc.getDescription());
+                }
+
+                if (desc.getWebsite() != null) {
+                    sender.sendMessage("Website: " + ChatColor.GREEN + desc.getWebsite());
+                }
+
+                if (!desc.getAuthors().isEmpty()) {
+                    if (desc.getAuthors().size() == 1) {
+                        sender.sendMessage("Author: " + getAuthors(desc));
+                    } else {
+                        sender.sendMessage("Authors: " + getAuthors(desc));
+                    }
+                }
+            } else {
+                sender.sendMessage("This server is not running any plugin by that name.");
+                sender.sendMessage("Use /plugins to get a list of plugins.");
+            }
+        }
+        return true;
+    }
+
+    private String getAuthors(final PluginDescriptionFile desc) {
+        StringBuilder result = new StringBuilder();
+        ArrayList<String> authors = desc.getAuthors();
+
+        for (int i = 0; i < authors.size(); i++) {
+            if (result.length() > 0) {
+                result.append(ChatColor.WHITE);
+
+                if (i < authors.size() - 1) {
+                    result.append(", ");
+                } else {
+                    result.append(" and ");
+                }
+            }
+
+            result.append(ChatColor.GREEN);
+            result.append(authors.get(i));
+        }
+        
+        return result.toString();
+    }
+}