4 files changed, 880 insertions, 0 deletions
diff --git a/phpBB/phpbb/console/command/user/activate.php b/phpBB/phpbb/console/command/user/activate.php
new file mode 100644
index 0000000000..9c85718b4c
--- /dev/null
+++ b/phpBB/phpbb/console/command/user/activate.php
@@ -0,0 +1,218 @@
+<?php
+/**
+ *
+ * This file is part of the phpBB Forum Software package.
+ *
+ * @copyright (c) phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ * For full copyright and license information, please see
+ * the docs/CREDITS.txt file.
+ *
+ */
+
+namespace phpbb\console\command\user;
+
+use phpbb\config\config;
+use phpbb\console\command\command;
+use phpbb\db\driver\driver_interface;
+use phpbb\language\language;
+use phpbb\log\log_interface;
+use phpbb\notification\manager;
+use phpbb\user;
+use phpbb\user_loader;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+
+class activate extends command
+{
+	/** @var driver_interface */
+	protected $db;
+
+	/** @var config */
+	protected $config;
+
+	/** @var language */
+	protected $language;
+
+	/** @var log_interface */
+	protected $log;
+
+	/** @var manager */
+	protected $notifications;
+
+	/** @var user_loader */
+	protected $user_loader;
+
+	/**
+	 * phpBB root path
+	 *
+	 * @var string
+	 */
+	protected $phpbb_root_path;
+
+	/**
+	 * PHP extension.
+	 *
+	 * @var string
+	 */
+	protected $php_ext;
+
+	/**
+	 * Construct method
+	 *
+	 * @param user             $user
+	 * @param driver_interface $db
+	 * @param config           $config
+	 * @param language         $language
+	 * @param log_interface    $log
+	 * @param manager          $notifications
+	 * @param user_loader      $user_loader
+	 * @param string           $phpbb_root_path
+	 * @param string           $php_ext
+	 */
+	public function __construct(user $user, driver_interface $db, config $config, language $language, log_interface $log, manager $notifications, user_loader $user_loader, $phpbb_root_path, $php_ext)
+	{
+		$this->db = $db;
+		$this->config = $config;
+		$this->language = $language;
+		$this->log = $log;
+		$this->notifications = $notifications;
+		$this->user_loader = $user_loader;
+		$this->phpbb_root_path = $phpbb_root_path;
+		$this->php_ext = $php_ext;
+
+		$this->language->add_lang('acp/users');
+		parent::__construct($user);
+	}
+
+	/**
+	 * Sets the command name and description
+	 *
+	 * @return null
+	 */
+	protected function configure()
+	{
+		$this
+			->setName('user:activate')
+			->setDescription($this->language->lang('CLI_DESCRIPTION_USER_ACTIVATE'))
+			->setHelp($this->language->lang('CLI_HELP_USER_ACTIVATE'))
+			->addArgument(
+				'username',
+				InputArgument::REQUIRED,
+				$this->language->lang('CLI_DESCRIPTION_USER_ACTIVATE_USERNAME')
+			)
+			->addOption(
+				'deactivate',
+				'd',
+				InputOption::VALUE_NONE,
+				$this->language->lang('CLI_DESCRIPTION_USER_ACTIVATE_DEACTIVATE')
+			)
+			->addOption(
+				'send-email',
+				null,
+				InputOption::VALUE_NONE,
+				$this->language->lang('CLI_DESCRIPTION_USER_ADD_OPTION_NOTIFY')
+			)
+		;
+	}
+
+	/**
+	 * Executes the command user:activate
+	 *
+	 * Activate (or deactivate) a user account
+	 *
+	 * @param InputInterface  $input  The input stream used to get the options
+	 * @param OutputInterface $output The output stream, used to print messages
+	 *
+	 * @return int 0 if all is well, 1 if any errors occurred
+	 */
+	protected function execute(InputInterface $input, OutputInterface $output)
+	{
+		$io = new SymfonyStyle($input, $output);
+
+		$name = $input->getArgument('username');
+		$mode = ($input->getOption('deactivate')) ? 'deactivate' : 'activate';
+
+		$user_id  = $this->user_loader->load_user_by_username($name);
+		$user_row = $this->user_loader->get_user($user_id);
+
+		if ($user_row['user_id'] == ANONYMOUS)
+		{
+			$io->error($this->language->lang('NO_USER'));
+			return 1;
+		}
+
+		// Check if the user is already active (or inactive)
+		if ($mode == 'activate' && $user_row['user_type'] != USER_INACTIVE)
+		{
+			$io->error($this->language->lang('CLI_DESCRIPTION_USER_ACTIVATE_ACTIVE'));
+			return 1;
+		}
+		else if ($mode == 'deactivate' && $user_row['user_type'] == USER_INACTIVE)
+		{
+			$io->error($this->language->lang('CLI_DESCRIPTION_USER_ACTIVATE_INACTIVE'));
+			return 1;
+		}
+
+		// Activate the user account
+		if (!function_exists('user_active_flip'))
+		{
+			require($this->phpbb_root_path . 'includes/functions_user.' . $this->php_ext);
+		}
+
+		user_active_flip($mode, $user_row['user_id']);
+
+		// Notify the user upon activation
+		if ($mode == 'activate' && $this->config['require_activation'] == USER_ACTIVATION_ADMIN)
+		{
+			$this->send_notification($user_row, $input);
+		}
+
+		// Log and display the result
+		$msg = ($mode == 'activate') ? 'USER_ADMIN_ACTIVATED' : 'USER_ADMIN_DEACTIVED';
+		$log = ($mode == 'activate') ? 'LOG_USER_ACTIVE' : 'LOG_USER_INACTIVE';
+
+		$this->log->add('admin', ANONYMOUS, '', $log, false, array($user_row['username']));
+		$this->log->add('user', ANONYMOUS, '', $log . '_USER', false, array(
+			'reportee_id' => $user_row['user_id']
+		));
+
+		$io->success($this->language->lang($msg));
+
+		return 0;
+	}
+
+	/**
+	 * Send account activation notification to user
+	 *
+	 * @param array           $user_row The user data array
+	 * @param InputInterface  $input    The input stream used to get the options
+	 * @return null
+	 */
+	protected function send_notification($user_row, InputInterface $input)
+	{
+		$this->notifications->delete_notifications('notification.type.admin_activate_user', $user_row['user_id']);
+
+		if ($input->getOption('send-email'))
+		{
+			if (!class_exists('messenger'))
+			{
+				require($this->phpbb_root_path . 'includes/functions_messenger.' . $this->php_ext);
+			}
+
+			$messenger = new \messenger(false);
+			$messenger->template('admin_welcome_activated', $user_row['user_lang']);
+			$messenger->set_addresses($user_row);
+			$messenger->anti_abuse_headers($this->config, $this->user);
+			$messenger->assign_vars(array(
+					'USERNAME'	=> htmlspecialchars_decode($user_row['username']))
+			);
+
+			$messenger->send(NOTIFY_EMAIL);
+		}
+	}
+}
diff --git a/phpBB/phpbb/console/command/user/add.php b/phpBB/phpbb/console/command/user/add.php
new file mode 100644
index 0000000000..c60a059251
--- /dev/null
+++ b/phpBB/phpbb/console/command/user/add.php
@@ -0,0 +1,334 @@
+<?php
+/**
+ *
+ * This file is part of the phpBB Forum Software package.
+ *
+ * @copyright (c) phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ * For full copyright and license information, please see
+ * the docs/CREDITS.txt file.
+ *
+ */
+
+namespace phpbb\console\command\user;
+
+use phpbb\config\config;
+use phpbb\console\command\command;
+use phpbb\db\driver\driver_interface;
+use phpbb\exception\runtime_exception;
+use phpbb\language\language;
+use phpbb\passwords\manager;
+use phpbb\user;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\Question;
+use Symfony\Component\Console\Style\SymfonyStyle;
+
+class add extends command
+{
+	/** @var array Array of interactively acquired options */
+	protected $data;
+
+	/** @var driver_interface */
+	protected $db;
+
+	/** @var config */
+	protected $config;
+
+	/** @var language */
+	protected $language;
+
+	/** @var manager */
+	protected $password_manager;
+
+	/**
+	 * phpBB root path
+	 *
+	 * @var string
+	 */
+	protected $phpbb_root_path;
+
+	/**
+	 * PHP extension.
+	 *
+	 * @var string
+	 */
+	protected $php_ext;
+
+	/**
+	 * Construct method
+	 *
+	 * @param user             $user
+	 * @param driver_interface $db
+	 * @param config           $config
+	 * @param language         $language
+	 * @param manager          $password_manager
+	 * @param string           $phpbb_root_path
+	 * @param string           $php_ext
+	 */
+	public function __construct(user $user, driver_interface $db, config $config, language $language, manager $password_manager, $phpbb_root_path, $php_ext)
+	{
+		$this->db = $db;
+		$this->config = $config;
+		$this->language = $language;
+		$this->password_manager = $password_manager;
+		$this->phpbb_root_path = $phpbb_root_path;
+		$this->php_ext = $php_ext;
+
+		$this->language->add_lang('ucp');
+		parent::__construct($user);
+	}
+
+	/**
+	 * Sets the command name and description
+	 *
+	 * @return null
+	 */
+	protected function configure()
+	{
+		$this
+			->setName('user:add')
+			->setDescription($this->language->lang('CLI_DESCRIPTION_USER_ADD'))
+			->setHelp($this->language->lang('CLI_HELP_USER_ADD'))
+			->addOption(
+				'username',
+				'U',
+				InputOption::VALUE_REQUIRED,
+				$this->language->lang('CLI_DESCRIPTION_USER_ADD_OPTION_USERNAME')
+			)
+			->addOption(
+				'password',
+				'P',
+				InputOption::VALUE_REQUIRED,
+				$this->language->lang('CLI_DESCRIPTION_USER_ADD_OPTION_PASSWORD')
+			)
+			->addOption(
+				'email',
+				'E',
+				InputOption::VALUE_REQUIRED,
+				$this->language->lang('CLI_DESCRIPTION_USER_ADD_OPTION_EMAIL')
+			)
+			->addOption(
+				'send-email',
+				null,
+				InputOption::VALUE_NONE,
+				$this->language->lang('CLI_DESCRIPTION_USER_ADD_OPTION_NOTIFY')
+			)
+		;
+	}
+
+	/**
+	 * Executes the command user:add
+	 *
+	 * Adds a new user to the database. If options are not provided, it will ask for the username, password and email.
+	 * User is added to the registered user group. Language and timezone default to $config settings.
+	 *
+	 * @param InputInterface  $input  The input stream used to get the options
+	 * @param OutputInterface $output The output stream, used to print messages
+	 *
+	 * @return int 0 if all is well, 1 if any errors occurred
+	 */
+	protected function execute(InputInterface $input, OutputInterface $output)
+	{
+		$io = new SymfonyStyle($input, $output);
+
+		try
+		{
+			$this->validate_user_data();
+			$group_id = $this->get_group_id();
+		}
+		catch (runtime_exception $e)
+		{
+			$io->error($e->getMessage());
+			return 1;
+		}
+
+		$user_row = array(
+			'username'      => $this->data['username'],
+			'user_password' => $this->password_manager->hash($this->data['new_password']),
+			'user_email'    => $this->data['email'],
+			'group_id'      => $group_id,
+			'user_timezone' => $this->config['board_timezone'],
+			'user_lang'     => $this->config['default_lang'],
+			'user_type'     => USER_NORMAL,
+			'user_regdate'  => time(),
+		);
+
+		$user_id = (int) user_add($user_row);
+
+		if (!$user_id)
+		{
+			$io->error($this->language->lang('AUTH_NO_PROFILE_CREATED'));
+			return 1;
+		}
+
+		if ($input->getOption('send-email') && $this->config['email_enable'])
+		{
+			$this->send_activation_email($user_id);
+		}
+
+		$io->success($this->language->lang('CLI_USER_ADD_SUCCESS', $this->data['username']));
+
+		return 0;
+	}
+
+	/**
+	 * Interacts with the user.
+	 *
+	 * @param InputInterface  $input  An InputInterface instance
+	 * @param OutputInterface $output An OutputInterface instance
+	 */
+	protected function interact(InputInterface $input, OutputInterface $output)
+	{
+		$helper = $this->getHelper('question');
+
+		$this->data = array(
+			'username'     => $input->getOption('username'),
+			'new_password' => $input->getOption('password'),
+			'email'        => $input->getOption('email'),
+		);
+
+		if (!$this->data['username'])
+		{
+			$question = new Question($this->ask_user('USERNAME'));
+			$this->data['username'] = $helper->ask($input, $output, $question);
+		}
+
+		if (!$this->data['new_password'])
+		{
+			$question = new Question($this->ask_user('PASSWORD'));
+			$question->setValidator(function ($value) use ($helper, $input, $output) {
+				$question = new Question($this->ask_user('CONFIRM_PASSWORD'));
+				$question->setHidden(true);
+				if ($helper->ask($input, $output, $question) != $value)
+				{
+					throw new runtime_exception($this->language->lang('NEW_PASSWORD_ERROR'));
+				}
+				return $value;
+			});
+			$question->setHidden(true);
+			$question->setMaxAttempts(5);
+
+			$this->data['new_password'] = $helper->ask($input, $output, $question);
+		}
+
+		if (!$this->data['email'])
+		{
+			$question = new Question($this->ask_user('EMAIL_ADDRESS'));
+			$this->data['email'] = $helper->ask($input, $output, $question);
+		}
+	}
+
+	/**
+	 * Validate the submitted user data
+	 *
+	 * @throws runtime_exception if any data fails validation
+	 * @return null
+	 */
+	protected function validate_user_data()
+	{
+		if (!function_exists('validate_data'))
+		{
+			require($this->phpbb_root_path . 'includes/functions_user.' . $this->php_ext);
+		}
+
+		$error = validate_data($this->data, array(
+			'username'     => array(
+				array('string', false, $this->config['min_name_chars'], $this->config['max_name_chars']),
+				array('username', '')),
+			'new_password' => array(
+				array('string', false, $this->config['min_pass_chars'], $this->config['max_pass_chars']),
+				array('password')),
+			'email'        => array(
+				array('string', false, 6, 60),
+				array('user_email')),
+		));
+
+		if ($error)
+		{
+			throw new runtime_exception(implode("\n", array_map(array($this->language, 'lang'), $error)));
+		}
+	}
+
+	/**
+	 * Get the group id
+	 *
+	 * Go and find in the database the group_id corresponding to 'REGISTERED'
+	 *
+	 * @throws runtime_exception if the group id does not exist in database.
+	 * @return null
+	 */
+	protected function get_group_id()
+	{
+		$sql = 'SELECT group_id
+			FROM ' . GROUPS_TABLE . "
+			WHERE group_name = '" . $this->db->sql_escape('REGISTERED') . "'
+				AND group_type = " . GROUP_SPECIAL;
+		$result = $this->db->sql_query($sql);
+		$row = $this->db->sql_fetchrow($result);
+		$this->db->sql_freeresult($result);
+
+		if (!$row || !$row['group_id'])
+		{
+			throw new runtime_exception($this->language->lang('NO_GROUP'));
+		}
+
+		return $row['group_id'];
+	}
+
+	/**
+	 * Send account activation email
+	 *
+	 * @param int   $user_id The new user's id
+	 * @return null
+	 */
+	protected function send_activation_email($user_id)
+	{
+		switch ($this->config['require_activation'])
+		{
+			case USER_ACTIVATION_SELF:
+				$email_template = 'user_welcome_inactive';
+				$user_actkey = gen_rand_string(mt_rand(6, 10));
+			break;
+			case USER_ACTIVATION_ADMIN:
+				$email_template = 'admin_welcome_inactive';
+				$user_actkey = gen_rand_string(mt_rand(6, 10));
+			break;
+			default:
+				$email_template = 'user_welcome';
+				$user_actkey = '';
+			break;
+		}
+
+		if (!class_exists('messenger'))
+		{
+			require($this->phpbb_root_path . 'includes/functions_messenger.' . $this->php_ext);
+		}
+
+		$messenger = new \messenger(false);
+		$messenger->template($email_template, $this->user->lang_name);
+		$messenger->to($this->data['email'], $this->data['username']);
+		$messenger->anti_abuse_headers($this->config, $this->user);
+		$messenger->assign_vars(array(
+			'WELCOME_MSG' => htmlspecialchars_decode($this->language->lang('WELCOME_SUBJECT', $this->config['sitename'])),
+			'USERNAME'    => htmlspecialchars_decode($this->data['username']),
+			'PASSWORD'    => htmlspecialchars_decode($this->data['new_password']),
+			'U_ACTIVATE'  => generate_board_url() . "/ucp.{$this->php_ext}?mode=activate&u=$user_id&k=$user_actkey")
+		);
+
+		$messenger->send(NOTIFY_EMAIL);
+	}
+
+	/**
+	 * Helper to translate questions to the user
+	 *
+	 * @param string $key The language key
+	 * @return string The language key translated with a colon and space appended
+	 */
+	protected function ask_user($key)
+	{
+		return $this->language->lang($key) . $this->language->lang('COLON') . ' ';
+	}
+}
diff --git a/phpBB/phpbb/console/command/user/delete.php b/phpBB/phpbb/console/command/user/delete.php
new file mode 100644
index 0000000000..8593541c1a
--- /dev/null
+++ b/phpBB/phpbb/console/command/user/delete.php
@@ -0,0 +1,170 @@
+<?php
+/**
+ *
+ * This file is part of the phpBB Forum Software package.
+ *
+ * @copyright (c) phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ * For full copyright and license information, please see
+ * the docs/CREDITS.txt file.
+ *
+ */
+
+namespace phpbb\console\command\user;
+
+use phpbb\console\command\command;
+use phpbb\db\driver\driver_interface;
+use phpbb\language\language;
+use phpbb\log\log_interface;
+use phpbb\user;
+use phpbb\user_loader;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\ConfirmationQuestion;
+use Symfony\Component\Console\Style\SymfonyStyle;
+
+class delete extends command
+{
+	/** @var driver_interface */
+	protected $db;
+
+	/** @var language */
+	protected $language;
+
+	/** @var log_interface */
+	protected $log;
+
+	/** @var user_loader */
+	protected $user_loader;
+
+	/**
+	 * phpBB root path
+	 *
+	 * @var string
+	 */
+	protected $phpbb_root_path;
+
+	/**
+	 * PHP extension.
+	 *
+	 * @var string
+	 */
+	protected $php_ext;
+
+	/**
+	 * Construct method
+	 *
+	 * @param user             $user
+	 * @param driver_interface $db
+	 * @param language         $language
+	 * @param log_interface    $log
+	 * @param user_loader      $user_loader
+	 * @param string           $phpbb_root_path
+	 * @param string           $php_ext
+	 */
+	public function __construct(user $user, driver_interface $db, language $language, log_interface $log, user_loader $user_loader, $phpbb_root_path, $php_ext)
+	{
+		$this->db = $db;
+		$this->language = $language;
+		$this->log = $log;
+		$this->user_loader = $user_loader;
+		$this->phpbb_root_path = $phpbb_root_path;
+		$this->php_ext = $php_ext;
+
+		$this->language->add_lang('acp/users');
+		parent::__construct($user);
+	}
+
+	/**
+	 * Sets the command name and description
+	 *
+	 * @return null
+	 */
+	protected function configure()
+	{
+		$this
+			->setName('user:delete')
+			->setDescription($this->language->lang('CLI_DESCRIPTION_USER_DELETE'))
+			->addArgument(
+				'username',
+				InputArgument::REQUIRED,
+				$this->language->lang('CLI_DESCRIPTION_USER_DELETE_USERNAME')
+			)
+			->addOption(
+				'delete-posts',
+				null,
+				InputOption::VALUE_NONE,
+				$this->language->lang('CLI_DESCRIPTION_USER_DELETE_OPTION_POSTS')
+			)
+		;
+	}
+
+	/**
+	 * Executes the command user:delete
+	 *
+	 * Deletes a user from the database. An option to delete the user's posts
+	 * is available, by default posts will be retained.
+	 *
+	 * @param InputInterface  $input  The input stream used to get the options
+	 * @param OutputInterface $output The output stream, used to print messages
+	 *
+	 * @return int 0 if all is well, 1 if any errors occurred
+	 */
+	protected function execute(InputInterface $input, OutputInterface $output)
+	{
+		$name = $input->getArgument('username');
+		$mode = ($input->getOption('delete-posts')) ? 'remove' : 'retain';
+
+		if ($name)
+		{
+			$io = new SymfonyStyle($input, $output);
+
+			$user_id  = $this->user_loader->load_user_by_username($name);
+			$user_row = $this->user_loader->get_user($user_id);
+
+			if ($user_row['user_id'] == ANONYMOUS)
+			{
+				$io->error($this->language->lang('NO_USER'));
+				return 1;
+			}
+
+			if (!function_exists('user_delete'))
+			{
+				require($this->phpbb_root_path . 'includes/functions_user.' . $this->php_ext);
+			}
+
+			user_delete($mode, $user_row['user_id'], $user_row['username']);
+
+			$this->log->add('admin', ANONYMOUS, '', 'LOG_USER_DELETED', false, array($user_row['username']));
+
+			$io->success($this->language->lang('USER_DELETED'));
+		}
+
+		return 0;
+	}
+
+	/**
+	 * Interacts with the user.
+	 * Confirm they really want to delete the account...last chance!
+	 *
+	 * @param InputInterface  $input  An InputInterface instance
+	 * @param OutputInterface $output An OutputInterface instance
+	 */
+	protected function interact(InputInterface $input, OutputInterface $output)
+	{
+		$helper = $this->getHelper('question');
+
+		$question = new ConfirmationQuestion(
+			$this->language->lang('CLI_USER_DELETE_CONFIRM', $input->getArgument('username')),
+			false
+		);
+
+		if (!$helper->ask($input, $output, $question))
+		{
+			$input->setArgument('username', false);
+		}
+	}
+}
diff --git a/phpBB/phpbb/console/command/user/reclean.php b/phpBB/phpbb/console/command/user/reclean.php
new file mode 100644
index 0000000000..1a89f13382
--- /dev/null
+++ b/phpBB/phpbb/console/command/user/reclean.php
@@ -0,0 +1,158 @@
+<?php
+/**
+ *
+ * This file is part of the phpBB Forum Software package.
+ *
+ * @copyright (c) phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ * For full copyright and license information, please see
+ * the docs/CREDITS.txt file.
+ *
+ */
+
+namespace phpbb\console\command\user;
+
+use phpbb\console\command\command;
+use phpbb\db\driver\driver_interface;
+use phpbb\language\language;
+use phpbb\user;
+use Symfony\Component\Console\Helper\ProgressBar;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+
+class reclean extends command
+{
+	/** @var driver_interface */
+	protected $db;
+
+	/** @var language */
+	protected $language;
+
+	/** @var int A count of the number of re-cleaned user names */
+	protected $processed;
+
+	/** @var ProgressBar */
+	protected $progress;
+
+	/**
+	 * Construct method
+	 *
+	 * @param user             $user
+	 * @param driver_interface $db
+	 * @param language         $language
+	 */
+	public function __construct(user $user, driver_interface $db, language $language)
+	{
+		$this->db = $db;
+		$this->language = $language;
+
+		parent::__construct($user);
+	}
+
+	/**
+	 * Sets the command name and description
+	 *
+	 * @return null
+	 */
+	protected function configure()
+	{
+		$this
+			->setName('user:reclean')
+			->setDescription($this->language->lang('CLI_DESCRIPTION_USER_RECLEAN'))
+			->setHelp($this->language->lang('CLI_HELP_USER_RECLEAN'))
+		;
+	}
+
+	/**
+	 * Executes the command user:reclean
+	 *
+	 * Cleans user names that are unclean.
+	 *
+	 * @param InputInterface  $input  The input stream used to get the options
+	 * @param OutputInterface $output The output stream, used to print messages
+	 *
+	 * @return int 0 if all is well, 1 if any errors occurred
+	 */
+	protected function execute(InputInterface $input, OutputInterface $output)
+	{
+		$io = new SymfonyStyle($input, $output);
+
+		$io->section($this->language->lang('CLI_USER_RECLEAN_START'));
+
+		$this->processed = 0;
+
+		$this->progress = $this->create_progress_bar($this->get_count(), $io, $output);
+		$this->progress->setMessage($this->language->lang('CLI_USER_RECLEAN_START'));
+		$this->progress->start();
+
+		$stage = 0;
+		while ($stage !== true)
+		{
+			$stage = $this->reclean_usernames($stage);
+		}
+
+		$this->progress->finish();
+
+		$io->newLine(2);
+		$io->success($this->language->lang('CLI_USER_RECLEAN_DONE', $this->processed));
+
+		return 0;
+	}
+
+	/**
+	 * Re-clean user names
+	 * Only user names that are unclean will be re-cleaned
+	 *
+	 * @param int $start An offset index
+	 * @return bool|int Return the next offset index or true if all records have been processed.
+	 */
+	protected function reclean_usernames($start = 0)
+	{
+		$limit = 500;
+		$i = 0;
+
+		$this->db->sql_transaction('begin');
+
+		$sql = 'SELECT user_id, username, username_clean FROM ' . USERS_TABLE;
+		$result = $this->db->sql_query_limit($sql, $limit, $start);
+		while ($row = $this->db->sql_fetchrow($result))
+		{
+			$i++;
+			$username_clean = $this->db->sql_escape(utf8_clean_string($row['username']));
+
+			if ($username_clean != $row['username_clean'])
+			{
+				$sql = 'UPDATE ' . USERS_TABLE . "
+					SET username_clean = '$username_clean'
+					WHERE user_id = {$row['user_id']}";
+				$this->db->sql_query($sql);
+
+				$this->processed++;
+			}
+
+			$this->progress->advance();
+		}
+		$this->db->sql_freeresult($result);
+
+		$this->db->sql_transaction('commit');
+
+		return ($i < $limit) ? true : $start + $i;
+	}
+
+	/**
+	 * Get the count of users in the database
+	 *
+	 * @return int
+	 */
+	protected function get_count()
+	{
+		$sql = 'SELECT COUNT(user_id) AS count FROM ' . USERS_TABLE;
+		$result = $this->db->sql_query($sql);
+		$count = (int) $this->db->sql_fetchfield('count');
+		$this->db->sql_freeresult($result);
+
+		return $count;
+	}
+}