/install/install_install.php

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<?php
/**
*
* @package install
* @version $Id$
* @copyright (c) 2005 phpBB Group
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/

/**
*/
if (!defined('IN_INSTALL'))
{
	// Someone has tried to access the file direct. This is not a good idea, so exit
	exit;
}

if (!empty($setmodules))
{
	// If phpBB is already installed we do not include this module
	if (@file_exists($phpbb_root_path . 'config.' . $phpEx) && !file_exists($phpbb_root_path . 'cache/install_lock'))
	{
		include_once($phpbb_root_path . 'config.' . $phpEx);

		if (defined('PHPBB_INSTALLED'))
		{
			return;
		}
	}

	$module[] = array(
		'module_type'		=> 'install',
		'module_title'		=> 'INSTALL',
		'module_filename'	=> substr(basename(__FILE__), 0, -strlen($phpEx)-1),
		'module_order'		=> 10,
		'module_subs'		=> '',
		'module_stages'		=> array('INTRO', 'REQUIREMENTS', 'DATABASE', 'ADMINISTRATOR', 'CONFIG_FILE', 'ADVANCED', 'CREATE_TABLE', 'FINAL'),
		'module_reqs'		=> ''
	);
}

/**
* Installation
* @package install
*/
class install_install extends module
{
	function install_install(&$p_master)
	{
		$this->p_master = &$p_master;
	}

	function main($mode, $sub)
	{
		global $lang, $template, $language, $phpbb_root_path, $cache;

		switch ($sub)
		{
			case 'intro':
				$cache->purge();

				$this->page_title = $lang['SUB_INTRO'];

				$template->assign_vars(array(
					'TITLE'			=> $lang['INSTALL_INTRO'],
					'BODY'			=> $lang['INSTALL_INTRO_BODY'],
					'L_SUBMIT'		=> $lang['NEXT_STEP'],
					'S_LANG_SELECT'	=> '<select id="language" name="language">' . $this->p_master->inst_language_select($language) . '</select>',
					'U_ACTION'		=> $this->p_master->module_url . "?mode=$mode&amp;sub=requirements&amp;language=$language",
				));

			break;

			case 'requirements':
				$this->check_server_requirements($mode, $sub);

			break;

			case 'database':
				$this->obtain_database_settings($mode, $sub);

			break;

			case 'administrator':
				$this->obtain_admin_settings($mode, $sub);

			break;

			case 'config_file':
				$this->create_config_file($mode, $sub);

			break;

			case 'advanced':
				$this->obtain_advanced_settings($mode, $sub);

			break;

			case 'create_table':
				$this->load_schema($mode, $sub);
			break;

			case 'final':
				$this->build_search_index($mode, $sub);
				$this->add_modules($mode, $sub);
				$this->add_language($mode, $sub);
				$this->add_bots($mode, $sub);
				$this->email_admin($mode, $sub);
				$this->disable_avatars_if_unwritable();

				// Remove the lock file
				@unlink($phpbb_root_path . 'cache/install_lock');

			break;
		}

		$this->tpl_name = 'install_install';
	}

	/**
	* Checks that the server we are installing on meets the requirements for running phpBB
	*/
	function check_server_requirements($mode, $sub)
	{
		global $lang, $template, $phpbb_root_path, $phpEx, $language;

		$this->page_title = $lang['STAGE_REQUIREMENTS'];

		$template->assign_vars(array(
			'TITLE'		=> $lang['REQUIREMENTS_TITLE'],
			'BODY'		=> $lang['REQUIREMENTS_EXPLAIN'],
		));

		$passed = array('php' => false, 'db' => false, 'files' => false, 'pcre' => false, 'imagesize' => false,);

		// Test for basic PHP settings
		$template->assign_block_vars('checks', array(
			'S_LEGEND'			=> true,
			'LEGEND'			=> $lang['PHP_SETTINGS'],
			'LEGEND_EXPLAIN'	=> $lang['PHP_SETTINGS_EXPLAIN'],
		));

		// Test the minimum PHP version
		$php_version = PHP_VERSION;

		if (version_compare($php_version, '4.3.3') < 0)
		{
			$result = '<strong style="color:red">' . $lang['NO'] . '</strong>';
		}
		else
		{
			$passed['php'] = true;

			// We also give feedback on whether we're running in safe mode
			$result = '<strong style="color:green">' . $lang['YES'];
			if (@ini_get('safe_mode') == '1' || strtolower(@ini_get('safe_mode')) == 'on')
			{
				$result .= ', ' . $lang['PHP_SAFE_MODE'];
			}
			$result .= '</strong>';
		}

		$template->assign_block_vars('checks', array(
			'TITLE'			=> $lang['PHP_VERSION_REQD'],
			'RESULT'		=> $result,

			'S_EXPLAIN'		=> false,
			'S_LEGEND'		=> false,
		));

		// Don't check for register_globals on 5.4+
		if (version_compare($php_version, '5.4.0-dev') < 0)
		{
			// Check for register_globals being enabled
			if (@ini_get('register_globals') == '1' || strtolower(@ini_get('register_globals')) == 'on')
			{
				$result = '<strong style="color:red">' . $lang['NO'] . '</strong>';
			}
			else
			{
				$result = '<strong style="color:green">' . $lang['YES'] . '</strong>';
			}

			$template->assign_block_vars('checks', array(
				'TITLE'			=> $lang['PHP_REGISTER_GLOBALS'],
				'TITLE_EXPLAIN'	=> $lang['PHP_REGISTER_GLOBALS_EXPLAIN'],
				'RESULT'		=> $result,

				'S_EXPLAIN'		=> true,
				'S_LEGEND'		=> false,
			));
		}

		// Check for url_fopen
		if (@ini_get('allow_url_fopen') == '1' || strtolower(@ini_get('allow_url_fopen')) == 'on')
		{
			$result = '<strong style="color:green">' . $lang['YES'] . '</strong>';
		}
		else
		{
			$result = '<strong style="color:red">' . $lang['NO'] . '</strong>';
		}

		$template->assign_block_vars('checks', array(
			'TITLE'			=> $lang['PHP_URL_FOPEN_SUPPORT'],
			'TITLE_EXPLAIN'	=> $lang['PHP_URL_FOPEN_SUPPORT_EXPLAIN'],
			'RESULT'		=> $result,

			'S_EXPLAIN'		=> true,
			'S_LEGEND'		=> false,
		));


		// Check for getimagesize
		if (@function_exists('getimagesize'))
		{
			$passed['imagesize'] = true;
			$result = '<strong style="color:green">' . $lang['YES'] . '</strong>';
		}
		else
		{
			$result = '<strong style="color:red">' . $lang['NO'] . '</strong>';
		}

		$template->assign_block_vars('checks', array(
			'TITLE'			=> $lang['PHP_GETIMAGESIZE_SUPPORT'],
			'TITLE_EXPLAIN'	=> $lang['PHP_GETIMAGESIZE_SUPPORT_EXPLAIN'],
			'RESULT'		=> $result,

			'S_EXPLAIN'		=> true,
			'S_LEGEND'		=> false,
		));

		// Check for PCRE UTF-8 support
		if (@preg_match('//u', ''))
		{
			$passed['pcre'] = true;
			$result = '<strong style="color:green">' . $lang['YES'] . '</strong>';
		}
		else
		{
			$result = '<strong style="color:red">' . $lang['NO'] . '</strong>';
		}

		$template->assign_block_vars('checks', array(
			'TITLE'			=> $lang['PCRE_UTF_SUPPORT'],
			'TITLE_EXPLAIN'	=> $lang['PCRE_UTF_SUPPORT_EXPLAIN'],
			'RESULT'		=> $result,

			'S_EXPLAIN'		=> true,
			'S_LEGEND'		=> false,
		));

/**
*		Better not enabling and adding to the loaded extensions due to the specific requirements needed
		if (!@extension_loaded('mbstring'))
		{
			can_load_dll('mbstring');
		}
*/

		$passed['mbstring'] = true;
		if (@extension_loaded('mbstring'))
		{
			// Test for available database modules
			$template->assign_block_vars('checks', array(
				'S_LEGEND'			=> true,
				'LEGEND'			=> $lang['MBSTRING_CHECK'],
				'LEGEND_EXPLAIN'	=> $lang['MBSTRING_CHECK_EXPLAIN'],
			));

			$checks = array(
				array('func_overload', '&', MB_OVERLOAD_MAIL|MB_OVERLOAD_STRING),
				array('encoding_translation', '!=', 0),
				array('http_input', '!=', 'pass'),
				array('http_output', '!=', 'pass')
			);

			foreach ($checks as $mb_checks)
			{
				$ini_val = @ini_get('mbstring.' . $mb_checks[0]);
				switch ($mb_checks[1])
				{
					case '&':
						if (intval($ini_val) & $mb_checks[2])
						{
							$result = '<strong style="color:red">' . $lang['NO'] . '</strong>';
							$passed['mbstring'] = false;
						}
						else
						{
							$result = '<strong style="color:green">' . $lang['YES'] . '</strong>';
						}
					break;

					case '!=':
						if ($ini_val != $mb_checks[2])
						{
							$result = '<strong style="color:red">' . $lang['NO'] . '</strong>';
							$passed['mbstring'] = false;
						}
						else
						{
							$result = '<strong style="color:green">' . $lang['YES'] . '</strong>';
						}
					break;
				}
				$template->assign_block_vars('checks', array(
					'TITLE'			=> $lang['MBSTRING_' . strtoupper($mb_checks[0])],
					'TITLE_EXPLAIN'	=> $lang['MBSTRING_' . strtoupper($mb_checks[0]) . '_EXPLAIN'],
					'RESULT'		=> $result,

					'S_EXPLAIN'		=> true,
					'S_LEGEND'		=> false,
				));
			}
		}

		// Test for available database modules
		$template->assign_block_vars('checks', array(
			'S_LEGEND'			=> true,
			'LEGEND'			=> $lang['PHP_SUPPORTED_DB'],
			'LEGEND_EXPLAIN'	=> $lang['PHP_SUPPORTED_DB_EXPLAIN'],
		));

		$available_dbms = get_available_dbms(false, true);
		$passed['db'] = $available_dbms['ANY_DB_SUPPORT'];
		unset($available_dbms['ANY_DB_SUPPORT']);

		foreach ($available_dbms as $db_name => $db_ary)
		{
			if (!$db_ary['AVAILABLE'])
			{
				$template->assign_block_vars('checks', array(
					'TITLE'		=> $lang['DLL_' . strtoupper($db_name)],
					'RESULT'	=> '<span style="color:red">' . $lang['UNAVAILABLE'] . '</span>',

					'S_EXPLAIN'	=> false,
					'S_LEGEND'	=> false,
				));
			}
			else
			{
				$template->assign_block_vars('checks', array(
					'TITLE'		=> $lang['DLL_' . strtoupper($db_name)],
					'RESULT'	=> '<strong style="color:green">' . $lang['AVAILABLE'] . '</strong>',

					'S_EXPLAIN'	=> false,
					'S_LEGEND'	=> false,
				));
			}
		}

		// Test for other modules
		$template->assign_block_vars('checks', array(
			'S_LEGEND'			=> true,
			'LEGEND'			=> $lang['PHP_OPTIONAL_MODULE'],
			'LEGEND_EXPLAIN'	=> $lang['PHP_OPTIONAL_MODULE_EXPLAIN'],
		));

		foreach ($this->php_dlls_other as $dll)
		{
			if (!@extension_loaded($dll))
			{
				if (!can_load_dll($dll))
				{
					$template->assign_block_vars('checks', array(
						'TITLE'		=> $lang['DLL_' . strtoupper($dll)],
						'RESULT'	=> '<strong style="color:red">' . $lang['UNAVAILABLE'] . '</strong>',

						'S_EXPLAIN'	=> false,
						'S_LEGEND'	=> false,
					));
					continue;
				}
			}

			$template->assign_block_vars('checks', array(
				'TITLE'		=> $lang['DLL_' . strtoupper($dll)],
				'RESULT'	=> '<strong style="color:green">' . $lang['AVAILABLE'] . '</strong>',

				'S_EXPLAIN'	=> false,
				'S_LEGEND'	=> false,
			));
		}

		// Can we find Imagemagick anywhere on the system?
		$exe = (DIRECTORY_SEPARATOR == '\\') ? '.exe' : '';

		$magic_home = getenv('MAGICK_HOME');
		$img_imagick = '';
		if (empty($magic_home))
		{
			$locations = array('C:/WINDOWS/', 'C:/WINNT/', 'C:/WINDOWS/SYSTEM/', 'C:/WINNT/SYSTEM/', 'C:/WINDOWS/SYSTEM32/', 'C:/WINNT/SYSTEM32/', '/usr/bin/', '/usr/sbin/', '/usr/local/bin/', '/usr/local/sbin/', '/opt/', '/usr/imagemagick/', '/usr/bin/imagemagick/');
			$path_locations = str_replace('\\', '/', (explode(($exe) ? ';' : ':', getenv('PATH'))));

			$locations = array_merge($path_locations, $locations);
			foreach ($locations as $location)
			{
				// The path might not end properly, fudge it
				if (substr($location, -1, 1) !== '/')
				{
					$location .= '/';
				}

				if (@file_exists($location) && @is_readable($location . 'mogrify' . $exe) && @filesize($location . 'mogrify' . $exe) > 3000)
				{
					$img_imagick = str_replace('\\', '/', $location);
					continue;
				}
			}
		}
		else
		{
			$img_imagick = str_replace('\\', '/', $magic_home);
		}

		$template->assign_block_vars('checks', array(
			'TITLE'		=> $lang['APP_MAGICK'],
			'RESULT'	=> ($img_imagick) ? '<strong style="color:green">' . $lang['AVAILABLE'] . ', ' . $img_imagick . '</strong>' : '<strong style="color:blue">' . $lang['NO_LOCATION'] . '</strong>',

			'S_EXPLAIN'	=> false,
			'S_LEGEND'	=> false,
		));

		// Check permissions on files/directories we need access to
		$template->assign_block_vars('checks', array(
			'S_LEGEND'			=> true,
			'LEGEND'			=> $lang['FILES_REQUIRED'],
			'LEGEND_EXPLAIN'	=> $lang['FILES_REQUIRED_EXPLAIN'],
		));

		$directories = array('cache/', 'files/', 'store/');

		umask(0);

		$passed['files'] = true;
		foreach ($directories as $dir)
		{
			$exists = $write = false;

			// Try to create the directory if it does not exist
			if (!file_exists($phpbb_root_path . $dir))
			{
				@mkdir($phpbb_root_path . $dir, 0777);
				phpbb_chmod($phpbb_root_path . $dir, CHMOD_READ | CHMOD_WRITE);
			}

			// Now really check
			if (file_exists($phpbb_root_path . $dir) && is_dir($phpbb_root_path . $dir))
			{
				phpbb_chmod($phpbb_root_path . $dir, CHMOD_READ | CHMOD_WRITE);
				$exists = true;
			}

			// Now check if it is writable by storing a simple file
			$fp = @fopen($phpbb_root_path . $dir . 'test_lock', 'wb');
			if ($fp !== false)
			{
				$write = true;
			}
			@fclose($fp);

			@unlink($phpbb_root_path . $dir . 'test_lock');

			$passed['files'] = ($exists && $write && $passed['files']) ? true : false;

			$exists = ($exists) ? '<strong style="color:green">' . $lang['FOUND'] . '</strong>' : '<strong style="color:red">' . $lang['NOT_FOUND'] . '</strong>';
			$write = ($write) ? ', <strong style="color:green">' . $lang['WRITABLE'] . '</strong>' : (($exists) ? ', <strong style="color:red">' . $lang['UNWRITABLE'] . '</strong>' : '');

			$template->assign_block_vars('checks', array(
				'TITLE'		=> $dir,
				'RESULT'	=> $exists . $write,

				'S_EXPLAIN'	=> false,
				'S_LEGEND'	=> false,
			));
		}

		// Check permissions on files/directories it would be useful access to
		$template->assign_block_vars('checks', array(
			'S_LEGEND'			=> true,
			'LEGEND'			=> $lang['FILES_OPTIONAL'],
			'LEGEND_EXPLAIN'	=> $lang['FILES_OPTIONAL_EXPLAIN'],
		));

		$directories = array('config.' . $phpEx, 'images/avatars/upload/');

		foreach ($directories as $dir)
		{
			$write = $exists = true;
			if (file_exists($phpbb_root_path . $dir))
			{
				if (!phpbb_is_writable($phpbb_root_path . $dir))
				{
					$write = false;
				}
			}
			else
			{
				$write = $exists = false;
			}

			$exists_str = ($exists) ? '<strong style="color:green">' . $lang['FOUND'] . '</strong>' : '<strong style="color:red">' . $lang['NOT_FOUND'] . '</strong>';
			$write_str = ($write) ? ', <strong style="color:green">' . $lang['WRITABLE'] . '</strong>' : (($exists) ? ', <strong style="color:red">' . $lang['UNWRITABLE'] . '</strong>' : '');

			$template->assign_block_vars('checks', array(
				'TITLE'		=> $dir,
				'RESULT'	=> $exists_str . $write_str,

				'S_EXPLAIN'	=> false,
				'S_LEGEND'	=> false,
			));
		}

		// And finally where do we want to go next (well today is taken isn't it :P)
		$s_hidden_fields = ($img_imagick) ? '<input type="hidden" name="img_imagick" value="' . addslashes($img_imagick) . '" />' : '';

		$url = (!in_array(false, $passed)) ? $this->p_master->module_url . "?mode=$mode&amp;sub=database&amp;language=$language" : $this->p_master->module_url . "?mode=$mode&amp;sub=requirements&amp;language=$language	";
		$submit = (!in_array(false, $passed)) ? $lang['INSTALL_START'] : $lang['INSTALL_TEST'];


		$template->assign_vars(array(
			'L_SUBMIT'	=> $submit,
			'S_HIDDEN'	=> $s_hidden_fields,
			'U_ACTION'	=> $url,
		));
	}

	/**
	* Obtain the information required to connect to the database
	*/
	function obtain_database_settings($mode, $sub)
	{
		global $lang, $template, $phpEx;

		$this->page_title = $lang['STAGE_DATABASE'];

		// Obtain any submitted data
		$data = $this->get_submitted_data();

		$connect_test = false;
		$error = array();
		$available_dbms = get_available_dbms(false, true);

		// Has the user opted to test the connection?
		if (isset($_POST['testdb']))
		{
			if (!isset($available_dbms[$data['dbms']]) || !$available_dbms[$data['dbms']]['AVAILABLE'])
			{
				$error[] = $lang['INST_ERR_NO_DB'];
				$connect_test = false;
			}
			else if (!preg_match(get_preg_expression('table_prefix'), $data['table_prefix']))
			{
				$error[] = $lang['INST_ERR_DB_INVALID_PREFIX'];
				$connect_test = false;
			}
			else
			{
				$connect_test = connect_check_db(true, $error, $available_dbms[$data['dbms']], $data['table_prefix'], $data['dbhost'], $data['dbuser'], htmlspecialchars_decode($data['dbpasswd']), $data['dbname'], $data['dbport']);
			}

			$template->assign_block_vars('checks', array(
				'S_LEGEND'			=> true,
				'LEGEND'			=> $lang['DB_CONNECTION'],
				'LEGEND_EXPLAIN'	=> false,
			));

			if ($connect_test)
			{
				$template->assign_block_vars('checks', array(
					'TITLE'		=> $lang['DB_TEST'],
					'RESULT'	=> '<strong style="color:green">' . $lang['SUCCESSFUL_CONNECT'] . '</strong>',

					'S_EXPLAIN'	=> false,
					'S_LEGEND'	=> false,
				));
			}
			else
			{
				$template->assign_block_vars('checks', array(
					'TITLE'		=> $lang['DB_TEST'],
					'RESULT'	=> '<strong style="color:red">' . implode('<br />', $error) . '</strong>',

					'S_EXPLAIN'	=> false,
					'S_LEGEND'	=> false,
				));
			}
		}

		if (!$connect_test)
		{
			// Update the list of available DBMS modules to only contain those which can be used
			$available_dbms_temp = array();
			foreach ($available_dbms as $type => $dbms_ary)
			{
				if (!$dbms_ary['AVAILABLE'])
				{
					continue;
				}

				$available_dbms_temp[$type] = $dbms_ary;
			}

			$available_dbms = &$available_dbms_temp;

			// And now for the main part of this page
			$data['table_prefix'] = (!empty($data['table_prefix']) ? $data['table_prefix'] : 'phpbb_');

			foreach ($this->db_config_options as $config_key => $vars)
			{
				if (!is_array($vars) && strpos($config_key, 'legend') === false)
				{
					continue;
				}

				if (strpos($config_key, 'legend') !== false)
				{
					$template->assign_block_vars('options', array(
						'S_LEGEND'		=> true,
						'LEGEND'		=> $lang[$vars])
					);

					continue;
				}

				$options = isset($vars['options']) ? $vars['options'] : '';

				$template->assign_block_vars('options', array(
					'KEY'			=> $config_key,
					'TITLE'			=> $lang[$vars['lang']],
					'S_EXPLAIN'		=> $vars['explain'],
					'S_LEGEND'		=> false,
					'TITLE_EXPLAIN'	=> ($vars['explain']) ? $lang[$vars['lang'] . '_EXPLAIN'] : '',
					'CONTENT'		=> $this->p_master->input_field($config_key, $vars['type'], $data[$config_key], $options),
					)
				);
			}
		}

		// And finally where do we want to go next (well today is taken isn't it :P)
		$s_hidden_fields = ($data['img_imagick']) ? '<input type="hidden" name="img_imagick" value="' . addslashes($data['img_imagick']) . '" />' : '';
		$s_hidden_fields .= '<input type="hidden" name="language" value="' . $data['language'] . '" />';
		if ($connect_test)
		{
			foreach ($this->db_config_options as $config_key => $vars)
			{
				if (!is_array($vars))
				{
					continue;
				}
				$s_hidden_fields .= '<input type="hidden" name="' . $config_key . '" value="' . $data[$config_key] . '" />';
			}
		}

		$url = ($connect_test) ? $this->p_master->module_url . "?mode=$mode&amp;sub=administrator" : $this->p_master->module_url . "?mode=$mode&amp;sub=database";
		$s_hidden_fields .= ($connect_test) ? '' : '<input type="hidden" name="testdb" value="true" />';

		$submit = $lang['NEXT_STEP'];

		$template->assign_vars(array(
			'L_SUBMIT'	=> $submit,
			'S_HIDDEN'	=> $s_hidden_fields,
			'U_ACTION'	=> $url,
		));
	}

	/**
	* Obtain the administrator's name, password and email address
	*/
	function obtain_admin_settings($mode, $sub)
	{
		global $lang, $template, $phpEx;

		$this->page_title = $lang['STAGE_ADMINISTRATOR'];

		// Obtain any submitted data
		$data = $this->get_submitted_data();

		if ($data['dbms'] == '')
		{
			// Someone's been silly and tried calling this page direct
			// So we send them back to the start to do it again properly
			$this->p_master->redirect("index.$phpEx?mode=install");
		}

		$s_hidden_fields = ($data['img_imagick']) ? '<input type="hidden" name="img_imagick" value="' . addslashes($data['img_imagick']) . '" />' : '';
		$passed = false;

		$data['default_lang'] = ($data['default_lang'] !== '') ? $data['default_lang'] : $data['language'];

		if (isset($_POST['check']))
		{
			$error = array();

			// Check the entered email address and password
			if ($data['admin_name'] == '' || $data['admin_pass1'] == '' || $data['admin_pass2'] == '' || $data['board_email1'] == '' || $data['board_email2'] == '')
			{
				$error[] = $lang['INST_ERR_MISSING_DATA'];
			}

			if ($data['admin_pass1'] != $data['admin_pass2'] && $data['admin_pass1'] != '')
			{
				$error[] = $lang['INST_ERR_PASSWORD_MISMATCH'];
			}

			// Test against the default username rules
			if ($data['admin_name'] != '' && utf8_strlen($data['admin_name']) < 3)
			{
				$error[] = $lang['INST_ERR_USER_TOO_SHORT'];
			}

			if ($data['admin_name'] != '' && utf8_strlen($data['admin_name']) > 20)
			{
				$error[] = $lang['INST_ERR_USER_TOO_LONG'];
			}

			// Test against the default password rules
			if ($data['admin_pass1'] != '' && utf8_strlen($data['admin_pass1']) < 6)
			{
				$error[] = $lang['INST_ERR_PASSWORD_TOO_SHORT'];
			}

			if ($data['admin_pass1'] != '' && utf8_strlen($data['admin_pass1']) > 30)
			{
				$error[] = $lang['INST_ERR_PASSWORD_TOO_LONG'];
			}

			if ($data['board_email1'] != $data['board_email2'] && $data['board_email1'] != '')
			{
				$error[] = $lang['INST_ERR_EMAIL_MISMATCH'];
			}

			if ($data['board_email1'] != '' && !preg_match('/^' . get_preg_expression('email') . '$/i', $data['board_email1']))
			{
				$error[] = $lang['INST_ERR_EMAIL_INVALID'];
			}

			$template->assign_block_vars('checks', array(
				'S_LEGEND'			=> true,
				'LEGEND'			=> $lang['STAGE_ADMINISTRATOR'],
				'LEGEND_EXPLAIN'	=> false,
			));

			if (!sizeof($error))
			{
				$passed = true;
				$template->assign_block_vars('checks', array(
					'TITLE'		=> $lang['ADMIN_TEST'],
					'RESULT'	=> '<strong style="color:green">' . $lang['TESTS_PASSED'] . '</strong>',

					'S_EXPLAIN'	=> false,
					'S_LEGEND'	=> false,
				));
			}
			else
			{
				$template->assign_block_vars('checks', array(
					'TITLE'		=> $lang['ADMIN_TEST'],
					'RESULT'	=> '<strong style="color:red">' . implode('<br />', $error) . '</strong>',

					'S_EXPLAIN'	=> false,
					'S_LEGEND'	=> false,
				));
			}
		}

		if (!$passed)
		{
			foreach ($this->admin_config_options as $config_key => $vars)
			{
				if (!is_array($vars) && strpos($config_key, 'legend') === false)
				{
					continue;
				}

				if (strpos($config_key, 'legend') !== false)
				{
					$template->assign_block_vars('options', array(
						'S_LEGEND'		=> true,
						'LEGEND'		=> $lang[$vars])
					);

					continue;
				}

				$options = isset($vars['options']) ? $vars['options'] : '';

				$template->assign_block_vars('options', array(
					'KEY'			=> $config_key,
					'TITLE'			=> $lang[$vars['lang']],
					'S_EXPLAIN'		=> $vars['explain'],
					'S_LEGEND'		=> false,
					'TITLE_EXPLAIN'	=> ($vars['explain']) ? $lang[$vars['lang'] . '_EXPLAIN'] : '',
					'CONTENT'		=> $this->p_master->input_field($config_key, $vars['type'], $data[$config_key], $options),
					)
				);
			}
		}
		else
		{
			foreach ($this->admin_config_options as $config_key => $vars)
			{
				if (!is_array($vars))
				{
					continue;
				}
				$s_hidden_fields .= '<input type="hidden" name="' . $config_key . '" value="' . $data[$config_key] . '" />';
			}
		}

		$s_hidden_fields .= ($data['img_imagick']) ? '<input type="hidden" name="img_imagick" value="' . addslashes($data['img_imagick']) . '" />' : '';
		$s_hidden_fields .= '<input type="hidden" name="language" value="' . $data['language'] . '" />';

		foreach ($this->db_config_options as $config_key => $vars)
		{
			if (!is_array($vars))
			{
				continue;
			}
			$s_hidden_fields .= '<input type="hidden" name="' . $config_key . '" value="' . $data[$config_key] . '" />';
		}

		$submit = $lang['NEXT_STEP'];

		$url = ($passed) ? $this->p_master->module_url . "?mode=$mode&amp;sub=config_file" : $this->p_master->module_url . "?mode=$mode&amp;sub=administrator";
		$s_hidden_fields .= ($passed) ? '' : '<input type="hidden" name="check" value="true" />';

		$template->assign_vars(array(
			'L_SUBMIT'	=> $submit,
			'S_HIDDEN'	=> $s_hidden_fields,
			'U_ACTION'	=> $url,
		));
	}

	/**
	* Writes the config file to disk, or if unable to do so offers alternative methods
	*/
	function create_config_file($mode, $sub)
	{
		global $lang, $template, $phpbb_root_path, $phpEx;

		$this->page_title = $lang['STAGE_CONFIG_FILE'];

		// Obtain any submitted data
		$data = $this->get_submitted_data();

		if ($data['dbms'] == '')
		{
			// Someone's been silly and tried calling this page direct
			// So we send them back to the start to do it again properly
			$this->p_master->redirect("index.$phpEx?mode=install");
		}

		$s_hidden_fields = ($data['img_imagick']) ? '<input type="hidden" name="img_imagick" value="' . addslashes($data['img_imagick']) . '" />' : '';
		$s_hidden_fields .= '<input type="hidden" name="language" value="' . $data['language'] . '" />';
		$written = false;

		// Create a list of any PHP modules we wish to have loaded
		$load_extensions = array();
		$available_dbms = get_available_dbms($data['dbms']);
		$check_exts = array_merge(array($available_dbms[$data['dbms']]['MODULE']), $this->php_dlls_other);

		foreach ($check_exts as $dll)
		{
			if (!@extension_loaded($dll))
			{
				if (!can_load_dll($dll))
				{
					continue;
				}

				$load_extensions[] = $dll . '.' . PHP_SHLIB_SUFFIX;
			}
		}

		// Create a lock file to indicate that there is an install in progress
		$fp = @fopen($phpbb_root_path . 'cache/install_lock', 'wb');
		if ($fp === false)
		{
			// We were unable to create the lock file - abort
			$this->p_master->error($lang['UNABLE_WRITE_LOCK'], __LINE__, __FILE__);
		}
		@fclose($fp);

		@chmod($phpbb_root_path . 'cache/install_lock', 0777);

		// Time to convert the data provided into a config file
		$config_data = phpbb_create_config_file_data($data, $available_dbms[$data['dbms']]['DRIVER'], $load_extensions);

		// Attempt to write out the config file directly. If it works, this is the easiest way to do it ...
		if ((file_exists($phpbb_root_path . 'config.' . $phpEx) && phpbb_is_writable($phpbb_root_path . 'config.' . $phpEx)) || phpbb_is_writable($phpbb_root_path))
		{
			// Assume it will work ... if nothing goes wrong below
			$written = true;

			if (!($fp = @fopen($phpbb_root_path . 'config.' . $phpEx, 'w')))
			{
				// Something went wrong ... so let's try another method
				$written = false;
			}

			if (!(@fwrite($fp, $config_data)))
			{
				// Something went wrong ... so let's try another method
				$written = false;
			}

			@fclose($fp);

			if ($written)
			{
				// We may revert back to chmod() if we see problems with users not able to change their config.php file directly
				phpbb_chmod($phpbb_root_path . 'config.' . $phpEx, CHMOD_READ);
			}
		}

		if (isset($_POST['dldone']))
		{
			// Do a basic check to make sure that the file has been uploaded
			// Note that all we check is that the file has _something_ in it
			// We don't compare the contents exactly - if they can't upload
			// a single file correctly, it's likely they will have other problems....
			if (filesize($phpbb_root_path . 'config.' . $phpEx) > 10)
			{
				$written = true;
			}
		}

		$config_options = array_merge($this->db_config_options, $this->admin_config_options);

		foreach ($config_options as $config_key => $vars)
		{
			if (!is_array($vars))
			{
				continue;
			}
			$s_hidden_fields .= '<input type="hidden" name="' . $config_key . '" value="' . $data[$config_key] . '" />';
		}

		if (!$written)
		{
			// OK, so it didn't work let's try the alternatives

			if (isset($_POST['dlconfig']))
			{
				// They want a copy of the file to download, so send the relevant headers and dump out the data
				header("Content-Type: text/x-delimtext; name=\"config.$phpEx\"");
				header("Content-disposition: attachment; filename=config.$phpEx");
				echo $config_data;
				exit;
			}

			// The option to download the config file is always available, so output it here
			$template->assign_vars(array(
				'BODY'					=> $lang['CONFIG_FILE_UNABLE_WRITE'],
				'L_DL_CONFIG'			=> $lang['DL_CONFIG'],
				'L_DL_CONFIG_EXPLAIN'	=> $lang['DL_CONFIG_EXPLAIN'],
				'L_DL_DONE'				=> $lang['DONE'],
				'L_DL_DOWNLOAD'			=> $lang['DL_DOWNLOAD'],
				'S_HIDDEN'				=> $s_hidden_fields,
				'S_SHOW_DOWNLOAD'		=> true,
				'U_ACTION'				=> $this->p_master->module_url . "?mode=$mode&amp;sub=config_file",
			));
			return;
		}
		else
		{
			$template->assign_vars(array(
				'BODY'		=> $lang['CONFIG_FILE_WRITTEN'],
				'L_SUBMIT'	=> $lang['NEXT_STEP'],
				'S_HIDDEN'	=> $s_hidden_fields,
				'U_ACTION'	=> $this->p_master->module_url . "?mode=$mode&amp;sub=advanced",
			));
			return;
		}
	}

	/**
	* Provide an opportunity to customise some advanced settings during the install
	* in case it is necessary for them to be set to access later
	*/
	function obtain_advanced_settings($mode, $sub)
	{
		global $lang, $template, $phpEx;

		$this->page_title = $lang['STAGE_ADVANCED'];

		// Obtain any submitted data
		$data = $this->get_submitted_data();

		if ($data['dbms'] == '')
		{
			// Someone's been silly and tried calling this page direct
			// So we send them back to the start to do it again properly
			$this->p_master->redirect("index.$phpEx?mode=install");
		}

		$s_hidden_fields = ($data['img_imagick']) ? '<input type="hidden" name="img_imagick" value="' . addslashes($data['img_imagick']) . '" />' : '';
		$s_hidden_fields .= '<input type="hidden" name="language" value="' . $data['language'] . '" />';

		// HTTP_HOST is having the correct browser url in most cases...
		$server_name = (!empty($_SERVER['HTTP_HOST'])) ? strtolower($_SERVER['HTTP_HOST']) : ((!empty($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : getenv('SERVER_NAME'));

		// HTTP HOST can carry a port number...
		if (strpos($server_name, ':') !== false)
		{
			$server_name = substr($server_name, 0, strpos($server_name, ':'));
		}

		$data['email_enable'] = ($data['email_enable'] !== '') ? $data['email_enable'] : true;
		$data['server_name'] = ($data['server_name'] !== '') ? $data['server_name'] : $server_name;
		$data['server_port'] = ($data['server_port'] !== '') ? $data['server_port'] : ((!empty($_SERVER['SERVER_PORT'])) ? (int) $_SERVER['SERVER_PORT'] : (int) getenv('SERVER_PORT'));
		$data['server_protocol'] = ($data['server_protocol'] !== '') ? $data['server_protocol'] : ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? 'https://' : 'http://');
		$data['cookie_secure'] = ($data['cookie_secure'] !== '') ? $data['cookie_secure'] : ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? true : false);

		if ($data['script_path'] === '')
		{
			$name = (!empty($_SERVER['PHP_SELF'])) ? $_SERVER['PHP_SELF'] : getenv('PHP_SELF');
			if (!$name)
			{
				$name = (!empty($_SERVER['REQUEST_URI'])) ? $_SERVER['REQUEST_URI'] : getenv('REQUEST_URI');
			}

			// Replace backslashes and doubled slashes (could happen on some proxy setups)
			$name = str_replace(array('\\', '//', '/install'), '/', $name);
			$data['script_path'] = trim(dirname($name));
		}

		foreach ($this->advanced_config_options as $config_key => $vars)
		{
			if (!is_array($vars) && strpos($config_key, 'legend') === false)
			{
				continue;
			}

			if (strpos($config_key, 'legend') !== false)
			{
				$template->assign_block_vars('options', array(
					'S_LEGEND'		=> true,
					'LEGEND'		=> $lang[$vars])
				);

				continue;
			}

			$options = isset($vars['options']) ? $vars['options'] : '';

			$template->assign_block_vars('options', array(
				'KEY'			=> $config_key,
				'TITLE'			=> $lang[$vars['lang']],
				'S_EXPLAIN'		=> $vars['explain'],
				'S_LEGEND'		=> false,
				'TITLE_EXPLAIN'	=> ($vars['explain']) ? $lang[$vars['lang'] . '_EXPLAIN'] : '',
				'CONTENT'		=> $this->p_master->input_field($config_key, $vars['type'], $data[$config_key], $options),
				)
			);
		}

		$config_options = array_merge($this->db_config_options, $this->admin_config_options);
		foreach ($config_options as $config_key => $vars)
		{
			if (!is_array($vars))
			{
				continue;
			}
			$s_hidden_fields .= '<input type="hidden" name="' . $config_key . '" value="' . $data[$config_key] . '" />';
		}

		$submit = $lang['NEXT_STEP'];

		$url = $this->p_master->module_url . "?mode=$mode&amp;sub=create_table";

		$template->assign_vars(array(
			'BODY'		=> $lang['STAGE_ADVANCED_EXPLAIN'],
			'L_SUBMIT'	=> $submit,
			'S_HIDDEN'	=> $s_hidden_fields,
			'U_ACTION'	=> $url,
		));
	}

	/**
	* Load the contents of the schema into the database and then alter it based on what has been input during the installation
	*/
	function load_schema($mode, $sub)
	{
		global $db, $lang, $template, $phpbb_root_path, $phpEx;

		$this->page_title = $lang['STAGE_CREATE_TABLE'];
		$s_hidden_fields = '';

		// Obtain any submitted data
		$data = $this->get_submitted_data();

		if ($data['dbms'] == '')
		{
			// Someone's been silly and tried calling this page direct
			// So we send them back to the start to do it again properly
			$this->p_master->redirect("index.$phpEx?mode=install");
		}

		// HTTP_HOST is having the correct browser url in most cases...
		$server_name = (!empty($_SERVER['HTTP_HOST'])) ? strtolower($_SERVER['HTTP_HOST']) : ((!empty($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : getenv('SERVER_NAME'));
		$referer = (!empty($_SERVER['HTTP_REFERER'])) ? strtolower($_SERVER['HTTP_REFERER']) : getenv('HTTP_REFERER');

		// HTTP HOST can carry a port number...
		if (strpos($server_name, ':') !== false)
		{
			$server_name = substr($server_name, 0, strpos($server_name, ':'));
		}

		$cookie_domain = ($data['server_name'] != '') ? $data['server_name'] : $server_name;

		// Try to come up with the best solution for cookie domain...
		if (strpos($cookie_domain, 'www.') === 0)
		{
			$cookie_domain = str_replace('www.', '.', $cookie_domain);
		}

		// If we get here and the extension isn't loaded it should be safe to just go ahead and load it
		$available_dbms = get_available_dbms($data['dbms']);

		if (!isset($available_dbms[$data['dbms']]))
		{
			// Someone's been silly and tried providing a non-existant dbms
			$this->p_master->redirect("index.$phpEx?mode=install");
		}

		$dbms = $available_dbms[$data['dbms']]['DRIVER'];

		// Load the appropriate database class if not already loaded
		include($phpbb_root_path . 'includes/db/' . $dbms . '.' . $phpEx);

		// Instantiate the database
		$db = new $sql_db();
		$db->sql_connect($data['dbhost'], $data['dbuser'], htmlspecialchars_decode($data['dbpasswd']), $data['dbname'], $data['dbport'], false, false);

		// NOTE: trigger_error does not work here.
		$db->sql_return_on_error(true);

		// If mysql is chosen, we need to adjust the schema filename slightly to reflect the correct version. ;)
		if ($data['dbms'] == 'mysql')
		{
			if (version_compare($db->sql_server_info(true), '4.1.3', '>='))
			{
				$available_dbms[$data['dbms']]['SCHEMA'] .= '_41';
			}
			else
			{
				$available_dbms[$data['dbms']]['SCHEMA'] .= '_40';
			}
		}

		// Ok we have the db info go ahead and read in the relevant schema
		// and work on building the table
		$dbms_schema = 'schemas/' . $available_dbms[$data['dbms']]['SCHEMA'] . '_schema.sql';

		// How should we treat this schema?
		$delimiter = $available_dbms[$data['dbms']]['DELIM'];

		$sql_query = @file_get_contents($dbms_schema);

		$sql_query = preg_replace('#phpbb_#i', $data['table_prefix'], $sql_query);

		$sql_query = phpbb_remove_comments($sql_query);

		$sql_query = split_sql_file($sql_query, $delimiter);

		foreach ($sql_query as $sql)
		{
			//$sql = trim(str_replace('|', ';', $sql));
			if (!$db->sql_query($sql))
			{
				$error = $db->sql_error();
				$this->p_master->db_error($error['message'], $sql, __LINE__, __FILE__);
			}
		}
		unset($sql_query);

		// Ok tables have been built, let's fill in the basic information
		$sql_query = file_get_contents('schemas/schema_data.sql');

		// Deal with any special comments
		switch ($data['dbms'])
		{
			case 'mssql':
			case 'mssql_odbc':
			case 'mssqlnative':
				$sql_query = preg_replace('#\# MSSQL IDENTITY (phpbb_[a-z_]+) (ON|OFF) \##s', 'SET IDENTITY_INSERT \1 \2;', $sql_query);
			break;

			case 'postgres':
				$sql_query = preg_replace('#\# POSTGRES (BEGIN|COMMIT) \##s', '\1; ', $sql_query);
			break;
		}

		// Change prefix
		$sql_query = preg_replace('# phpbb_([^\s]*) #i', ' ' . $data['table_prefix'] . '\1 ', $sql_query);

		// Change language strings...
		$sql_query = preg_replace_callback('#\{L_([A-Z0-9\-_]*)\}#s', 'adjust_language_keys_callback', $sql_query);

		$sql_query = phpbb_remove_comments($sql_query);
		$sql_query = split_sql_file($sql_query, ';');

		foreach ($sql_query as $sql)
		{
			//$sql = trim(str_replace('|', ';', $sql));
			if (!$db->sql_query($sql))
			{
				$error = $db->sql_error();
				$this->p_master->db_error($error['message'], $sql, __LINE__, __FILE__);
			}
		}
		unset($sql_query);

		$current_time = time();

		$user_ip = (!empty($_SERVER['REMOTE_ADDR'])) ? htmlspecialchars($_SERVER['REMOTE_ADDR']) : '';
		$user_ip = (stripos($user_ip, '::ffff:') === 0) ? substr($user_ip, 7) : $user_ip;

		if ($data['script_path'] !== '/')
		{
			// Adjust destination path (no trailing slash)
			if (substr($data['script_path'], -1) == '/')
			{
				$data['script_path'] = substr($data['script_path'], 0, -1);
			}

			$data['script_path'] = str_replace(array('../', './'), '', $data['script_path']);

			if ($data['script_path'][0] != '/')
			{
				$data['script_path'] = '/' . $data['script_path'];
			}
		}

		// Set default config and post data, this applies to all DB's
		$sql_ary = array(
			'INSERT INTO ' . $data['table_prefix'] . "config (config_name, config_value)
				VALUES ('board_startdate', '$current_time')",

			'INSERT INTO ' . $data['table_prefix'] . "config (config_name, config_value)
				VALUES ('default_lang', '" . $db->sql_escape($data['default_lang']) . "')",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['img_imagick']) . "'
				WHERE config_name = 'img_imagick'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['server_name']) . "'
				WHERE config_name = 'server_name'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['server_port']) . "'
				WHERE config_name = 'server_port'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['board_email1']) . "'
				WHERE config_name = 'board_email'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['board_email1']) . "'
				WHERE config_name = 'board_contact'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($cookie_domain) . "'
				WHERE config_name = 'cookie_domain'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($lang['default_dateformat']) . "'
				WHERE config_name = 'default_dateformat'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['email_enable']) . "'
				WHERE config_name = 'email_enable'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['smtp_delivery']) . "'
				WHERE config_name = 'smtp_delivery'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['smtp_host']) . "'
				WHERE config_name = 'smtp_host'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['smtp_auth']) . "'
				WHERE config_name = 'smtp_auth_method'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['smtp_user']) . "'
				WHERE config_name = 'smtp_username'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['smtp_pass']) . "'
				WHERE config_name = 'smtp_password'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['cookie_secure']) . "'
				WHERE config_name = 'cookie_secure'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['force_server_vars']) . "'
				WHERE config_name = 'force_server_vars'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['script_path']) . "'
				WHERE config_name = 'script_path'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['server_protocol']) . "'
				WHERE config_name = 'server_protocol'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($data['admin_name']) . "'
				WHERE config_name = 'newest_username'",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . md5(mt_rand()) . "'
				WHERE config_name = 'avatar_salt'",

			'UPDATE ' . $data['table_prefix'] . "users
				SET username = '" . $db->sql_escape($data['admin_name']) . "', user_password='" . $db->sql_escape(md5($data['admin_pass1'])) . "', user_ip = '" . $db->sql_escape($user_ip) . "', user_lang = '" . $db->sql_escape($data['default_lang']) . "', user_email='" . $db->sql_escape($data['board_email1']) . "', user_dateformat='" . $db->sql_escape($lang['default_dateformat']) . "', user_email_hash = " . $db->sql_escape(phpbb_email_hash($data['board_email1'])) . ", username_clean = '" . $db->sql_escape(utf8_clean_string($data['admin_name'])) . "'
				WHERE username = 'Admin'",

			'UPDATE ' . $data['table_prefix'] . "moderator_cache
				SET username = '" . $db->sql_escape($data['admin_name']) . "'
				WHERE username = 'Admin'",

			'UPDATE ' . $data['table_prefix'] . "forums
				SET forum_last_poster_name = '" . $db->sql_escape($data['admin_name']) . "'
				WHERE forum_last_poster_name = 'Admin'",

			'UPDATE ' . $data['table_prefix'] . "topics
				SET topic_first_poster_name = '" . $db->sql_escape($data['admin_name']) . "', topic_last_poster_name = '" . $db->sql_escape($data['admin_name']) . "'
				WHERE topic_first_poster_name = 'Admin'
					OR topic_last_poster_name = 'Admin'",

			'UPDATE ' . $data['table_prefix'] . "users
				SET user_regdate = $current_time",

			'UPDATE ' . $data['table_prefix'] . "posts
				SET post_time = $current_time, poster_ip = '" . $db->sql_escape($user_ip) . "'",

			'UPDATE ' . $data['table_prefix'] . "topics
				SET topic_time = $current_time, topic_last_post_time = $current_time",

			'UPDATE ' . $data['table_prefix'] . "forums
				SET forum_last_post_time = $current_time",

			'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '" . $db->sql_escape($db->sql_server_info(true)) . "'
				WHERE config_name = 'dbms_version'",
		);

		if (@extension_loaded('gd') || can_load_dll('gd'))
		{
			$sql_ary[] = 'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = 'phpbb_captcha_gd'
				WHERE config_name = 'captcha_plugin'";

			$sql_ary[] = 'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '1'
				WHERE config_name = 'captcha_gd'";
		}

		$ref = substr($referer, strpos($referer, '://') + 3);

		if (!(stripos($ref, $server_name) === 0))
		{
			$sql_ary[] = 'UPDATE ' . $data['table_prefix'] . "config
				SET config_value = '0'
				WHERE config_name = 'referer_validation'";
		}

		// We set a (semi-)unique cookie name to bypass login issues related to the cookie name.
		$cookie_name = 'phpbb3_';
		$rand_str = md5(mt_rand());
		$rand_str = str_replace('0', 'z', base_convert($rand_str, 16, 35));
		$rand_str = substr($rand_str, 0, 5);
		$cookie_name .= strtolower($rand_str);

		$sql_ary[] = 'UPDATE ' . $data['table_prefix'] . "config
			SET config_value = '" . $db->sql_escape($cookie_name) . "'
			WHERE config_name = 'cookie_name'";

		foreach ($sql_ary as $sql)
		{
			//$sql = trim(str_replace('|', ';', $sql));

			if (!$db->sql_query($sql))
			{
				$error = $db->sql_error();
				$this->p_master->db_error($error['message'], $sql, __LINE__, __FILE__);
			}
		}

		$submit = $lang['NEXT_STEP'];

		$url = $this->p_master->module_url . "?mode=$mode&amp;sub=final";

		$template->assign_vars(array(
			'BODY'		=> $lang['STAGE_CREATE_TABLE_EXPLAIN'],
			'L_SUBMIT'	=> $submit,
			'S_HIDDEN'	=> build_hidden_fields($data),
			'U_ACTION'	=> $url,
		));
	}

	/**
	* Build the search index...
	*/
	function build_search_index($mode, $sub)
	{
		global $db, $lang, $phpbb_root_path, $phpEx, $config;

		// Obtain any submitted data
		$data = $this->get_submitted_data();
		$table_prefix = $data['table_prefix'];

		// If we get here and the extension isn't loaded it should be safe to just go ahead and load it
		$available_dbms = get_available_dbms($data['dbms']);

		if (!isset($available_dbms[$data['dbms']]))
		{
			// Someone's been silly and tried providing a non-existant dbms
			$this->p_master->redirect("index.$phpEx?mode=install");
		}

		$dbms = $available_dbms[$data['dbms']]['DRIVER'];

		// Load the appropriate database class if not already loaded
		include($phpbb_root_path . 'includes/db/' . $dbms . '.' . $phpEx);

		// Instantiate the database
		$db = new $sql_db();
		$db->sql_connect($data['dbhost'], $data['dbuser'], htmlspecialchars_decode($data['dbpasswd']), $data['dbname'], $data['dbport'], false, false);

		// NOTE: trigger_error does not work here.
		$db->sql_return_on_error(true);

		include_once($phpbb_root_path . 'includes/constants.' . $phpEx);
		include_once($phpbb_root_path . 'includes/search/fulltext_native.' . $phpEx);

		// Fill the config array - it is needed by those functions we call
		$sql = 'SELECT *
			FROM ' . CONFIG_TABLE;
		$result = $db->sql_query($sql);

		$config = array();
		while ($row = $db->sql_fetchrow($result))
		{
			$config[$row['config_name']] = $row['config_value'];
		}
		$db->sql_freeresult($result);

		$error = false;
		$search = new fulltext_native($error);

		$sql = 'SELECT post_id, post_subject, post_text, poster_id, forum_id
			FROM ' . POSTS_TABLE;
		$result = $db->sql_query($sql);

		while ($row = $db->sql_fetchrow($result))
		{
			$search->index('post', $row['post_id'], $row['post_text'], $row['post_subject'], $row['poster_id'], $row['forum_id']);
		}
		$db->sql_freeresult($result);
	}

	/**
	* Populate the module tables
	*/
	function add_modules($mode, $sub)
	{
		global $db, $lang, $phpbb_root_path, $phpEx;

		include_once($phpbb_root_path . 'includes/acp/acp_modules.' . $phpEx);

		$_module = new acp_modules();
		$module_classes = array('acp', 'mcp', 'ucp');

		// Add categories
		foreach ($module_classes as $module_class)
		{
			$categories = array();

			// Set the module class
			$_module->module_class = $module_class;

			foreach ($this->module_categories[$module_class] as $cat_name => $subs)
			{
				$module_data = array(
					'module_basename'	=> '',
					'module_enabled'	=> 1,
					'module_display'	=> 1,
					'parent_id'			=> 0,
					'module_class'		=> $module_class,
					'module_langname'	=> $cat_name,
					'module_mode'		=> '',
					'module_auth'		=> '',
				);

				// Add category
				$_module->update_module_data($module_data, true);

				// Check for last sql error happened
				if ($db->sql_error_triggered)
				{
					$error = $db->sql_error($db->sql_error_sql);
					$this->p_master->db_error($error['message'], $db->sql_error_sql, __LINE__, __FILE__);
				}

				$categories[$cat_name]['id'] = (int) $module_data['module_id'];
				$categories[$cat_name]['parent_id'] = 0;

				// Create sub-categories...
				if (is_array($subs))
				{
					foreach ($subs as $level2_name)
					{
						$module_data = array(
							'module_basename'	=> '',
							'module_enabled'	=> 1,
							'module_display'	=> 1,
							'parent_id'			=> (int) $categories[$cat_name]['id'],
							'module_class'		=> $module_class,
							'module_langname'	=> $level2_name,
							'module_mode'		=> '',
							'module_auth'		=> '',
						);

						$_module->update_module_data($module_data, true);

						// Check for last sql error happened
						if ($db->sql_error_triggered)
						{
							$error = $db->sql_error($db->sql_error_sql);
							$this->p_master->db_error($error['message'], $db->sql_error_sql, __LINE__, __FILE__);
						}

						$categories[$level2_name]['id'] = (int) $module_data['module_id'];
						$categories[$level2_name]['parent_id'] = (int) $categories[$cat_name]['id'];
					}
				}
			}

			// Get the modules we want to add... returned sorted by name
			$module_info = $_module->get_module_infos('', $module_class);

			foreach ($module_info as $module_basename => $fileinfo)
			{
				foreach ($fileinfo['modes'] as $module_mode => $row)
				{
					foreach ($row['cat'] as $cat_name)
					{
						if (!isset($categories[$cat_name]))
						{
							continue;
						}

						$module_data = array(
							'module_basename'	=> $module_basename,
							'module_enabled'	=> 1,
							'module_display'	=> (isset($row['display'])) ? (int) $row['display'] : 1,
							'parent_id'			=> (int) $categories[$cat_name]['id'],
							'module_class'		=> $module_class,
							'module_langname'	=> $row['title'],
							'module_mode'		=> $module_mode,
							'module_auth'		=> $row['auth'],
						);

						$_module->update_module_data($module_data, true);

						// Check for last sql error happened
						if ($db->sql_error_triggered)
						{
							$error = $db->sql_error($db->sql_error_sql);
							$this->p_master->db_error($error['message'], $db->sql_error_sql, __LINE__, __FILE__);
						}
					}
				}
			}

			// Move some of the modules around since the code above will put them in the wrong place
			if ($module_class == 'acp')
			{
				// Move main module 4 up...
				$sql = 'SELECT *
					FROM ' . MODULES_TABLE . "
					WHERE module_basename = 'main'
						AND module_class = 'acp'
						AND module_mode = 'main'";
				$result = $db->sql_query($sql);
				$row = $db->sql_fetchrow($result);
				$db->sql_freeresult($result);

				$_module->move_module_by($row, 'move_up', 4);

				// Move permissions intro screen module 4 up...
				$sql = 'SELECT *
					FROM ' . MODULES_TABLE . "
					WHERE module_basename = 'permissions'
						AND module_class = 'acp'
						AND module_mode = 'intro'";
				$result = $db->sql_query($sql);
				$row = $db->sql_fetchrow($result);
				$db->sql_freeresult($result);

				$_module->move_module_by($row, 'move_up', 4);

				// Move manage users screen module 5 up...
				$sql = 'SELECT *
					FROM ' . MODULES_TABLE . "
					WHERE module_basename =…