Implemented the register command

src/main/java/fr/xephi/authme/command/CommandManager.java

@@ -355,9 +355,40 @@ public class CommandManager {
         loginHelpCommand.addArgument(new CommandArgumentDescription("query", "The command or query to view help for.", true));
         loginHelpCommand.setMaximumArguments(false);
 
+        // Register the base register command
+        CommandDescription registerBaseCommand = new CommandDescription(
+                new RegisterCommand(),
+                new ArrayList<String>() {{
+                    add("register");
+                    add("reg");
+                }},
+                "Registration command",
+                "Command to register using AuthMeReloaded.", null);
+        registerBaseCommand.setCommandPermissions("authme.register", CommandPermissions.DefaultPermission.ALLOWED);
+        registerBaseCommand.addArgument(new CommandArgumentDescription("password", "Password", false));
+        registerBaseCommand.addArgument(new CommandArgumentDescription("verifyPassword", "Verify password", false));
+        registerBaseCommand.setMaximumArguments(false);
+
+        // Register the help command
+        CommandDescription registerHelpCommand = new CommandDescription(
+                new HelpCommand(),
+                new ArrayList<String>() {{
+                    add("help");
+                    add("hlp");
+                    add("h");
+                    add("sos");
+                    add("?");
+                }},
+                "View help",
+                "View detailed help pages about AuthMeReloaded register commands.",
+                registerBaseCommand);
+        registerHelpCommand.addArgument(new CommandArgumentDescription("query", "The command or query to view help for.", true));
+        registerHelpCommand.setMaximumArguments(false);
+
         // Add the base commands to the commands array
         this.commandDescriptions.add(authMeBaseCommand);
         this.commandDescriptions.add(loginBaseCommand);
+        this.commandDescriptions.add(registerBaseCommand);
     }
 
     /**

src/main/java/fr/xephi/authme/command/executable/register/RegisterCommand.java

@@ -0,0 +1,69 @@
+package fr.xephi.authme.command.executable.register;
+
+import fr.xephi.authme.AuthMe;
+import fr.xephi.authme.command.CommandParts;
+import fr.xephi.authme.command.ExecutableCommand;
+import fr.xephi.authme.security.RandomString;
+import fr.xephi.authme.settings.Messages;
+import fr.xephi.authme.settings.Settings;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+public class RegisterCommand extends ExecutableCommand {
+
+    /**
+     * Execute the command.
+     *
+     * @param sender The command sender.
+     * @param commandReference The command reference.
+     * @param commandArguments The command arguments.
+     *
+     * @return True if the command was executed successfully, false otherwise.
+     */
+    @Override
+    public boolean executeCommand(CommandSender sender, CommandParts commandReference, CommandParts commandArguments) {
+        // AuthMe plugin instance
+        final AuthMe plugin = AuthMe.getInstance();
+
+        // Messages instance
+        final Messages m = Messages.getInstance();
+
+        // Make sure the sender is a player
+        if (!(sender instanceof Player)) {
+            sender.sendMessage("Player Only! Use 'authme register <playername> <password>' instead");
+            return true;
+        }
+
+        // Make sure the command arguments are valid
+        final Player player = (Player) sender;
+        if (commandArguments.getCount() == 0 || (Settings.getEnablePasswordVerifier && commandArguments.getCount() < 2)) {
+            m.send(player, "usage_reg");
+            return true;
+        }
+
+        if (Settings.emailRegistration && !Settings.getmailAccount.isEmpty()) {
+            if (Settings.doubleEmailCheck) {
+                if (commandArguments.getCount() < 2 || !commandArguments.get(0).equals(commandArguments.get(1))) {
+                    m.send(player, "usage_reg");
+                    return true;
+                }
+            }
+            final String email = commandArguments.get(0);
+            if (!Settings.isEmailCorrect(email)) {
+                m.send(player, "email_invalid");
+                return true;
+            }
+            RandomString rand = new RandomString(Settings.getRecoveryPassLength);
+            final String thePass = rand.nextString();
+            plugin.management.performRegister(player, thePass, email);
+            return true;
+        }
+        if (commandArguments.getCount() > 1 && Settings.getEnablePasswordVerifier)
+            if (!commandArguments.get(0).equals(commandArguments.get(1))) {
+                m.send(player, "password_error");
+                return true;
+            }
+        plugin.management.performRegister(player, commandArguments.get(0), "");
+        return true;
+    }
+}