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<?php
/**
* @package Joomla.Installation
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
/**
* Setup model for the Joomla Core Installer.
*
* @package Joomla.Installation
* @since 1.6
*/
class JInstallationModelSetup extends JModelLegacy
{
/**
* Get the current setup options from the session.
*
* @return array
* @since 1.6
*/
public function getOptions()
{
$session = JFactory::getSession();
$options = $session->get('setup.options', array());
return $options;
}
/**
* Store the current setup options in the session.
*
* @param array $options
*
* @return array
* @since 1.6
*/
public function storeOptions($options)
{
// Get the current setup options from the session.
$session = JFactory::getSession();
$old = $session->get('setup.options', array());
// Merge the new setup options into the current ones and store in the session.
$options = array_merge($old, (array)$options);
$session->set('setup.options', $options);
// If the setup language is set in the options, set it separately in the session and JLanguage.
if (!empty($options['language'])) {
$session->set('setup.language', $options['language']);
JFactory::getLanguage()->setLanguage($options['language']);
}
return $options;
}
/**
* Method to get the link form.
*
* @return mixed JForm object on success, false on failure.
* @since 1.6
*/
public function getForm($view = null)
{
// Initialise variables.
$false = false;
if (!$view) {
$view = JRequest::getWord('view', 'language');
}
// Get the form.
JForm::addFormPath(JPATH_COMPONENT.'/models/forms');
JForm::addFieldPath(JPATH_COMPONENT.'/models/fields');
JForm::addRulePath(JPATH_COMPONENT.'/models/rules');
try
{
$form = JForm::getInstance('jform', $view, array('control' => 'jform'));
}
catch (Exception $e)
{
$this->setError($e->getMessage());
return false;
}
// Check the session for previously entered form data.
$data = (array) $this->getOptions();
// Bind the form data if present.
if (!empty($data)) {
$form->bind($data);
}
return $form;
}
/**
* @return array
* @since 1.6
*/
public function getDboptions()
{
// Initialise variables.
$options = array();
// Create an array of known database connect functions.
$map = array(
'MySQL' => 'mysql_connect',
'MySQLi' => 'mysqli_connect',
);
// Iterate over the options, building an array.
$found = false;
foreach ($map as $k => $v)
{
// Only list available options.
if (!function_exists($v)) {
continue;
}
// Create the option object.
$option = new stdClass;
$option->text = $k;
$option->value = strtolower($k);
// Select the first available.
if (!$found) {
$option->selected = ' selected="selected"';
$found = true;
}
$options[] = $option;
}
return $options;
}
/**
* Generate a panel of language choices for the user to select their language
*
* @return boolean True if successful
* @since 1.6
*/
public function getLanguages()
{
// Initialise variables.
$app = JFactory::getApplication();
// Detect the native language.
$native = JLanguageHelper::detectLanguage();
if (empty($native)) {
$native = 'en-GB';
}
// Get a forced language if it exists.
$forced = $app->getLocalise();
if (!empty($forced['language'])) {
$native = $forced['language'];
}
// Get the list of available languages.
$list = JLanguageHelper::createLanguageList($native);
if (!$list || $list instanceof Exception) {
$list = array();
}
return $list;
}
/**
* Checks the availability of the parse_ini_file and parse_ini_string functions.
*
* @return boolean
* @since 1.6
*/
public function getIniParserAvailability()
{
$disabled_functions = ini_get('disable_functions');
if (!empty($disabled_functions)) {
// Attempt to detect them in the disable_functions black list
$disabled_functions = explode(',', trim($disabled_functions));
$number_of_disabled_functions = count($disabled_functions);
for ($i = 0; $i < $number_of_disabled_functions; $i++)
{
$disabled_functions[$i] = trim($disabled_functions[$i]);
}
if (phpversion() >= '5.3.0') {
$result = !in_array('parse_ini_string', $disabled_functions);
} else {
$result = !in_array('parse_ini_file', $disabled_functions);
}
} else {
// Attempt to detect their existence; even pure PHP implementation of them will trigger a positive response, though.
if (phpversion() >= '5.3.0') {
$result = function_exists('parse_ini_string');
} else {
$result = function_exists('parse_ini_file');
}
}
return $result;
}
/**
* Gets PHP options.
*
* @return array
* @since 1.6
*/
public function getPhpOptions()
{
// Initialise variables.
$options = array();
// Check the PHP Version.
$option = new stdClass;
$option->label = JText::_('INSTL_PHP_VERSION').' >= 5.2.4';
$option->state = version_compare(PHP_VERSION, '5.2.4', '>=');
$option->notice = null;
$options[] = $option;
// Check for zlib support.
$option = new stdClass;
$option->label = JText::_('INSTL_ZLIB_COMPRESSION_SUPPORT');
$option->state = extension_loaded('zlib');
$option->notice = null;
$options[] = $option;
// Check for XML support.
$option = new stdClass;
$option->label = JText::_('INSTL_XML_SUPPORT');
$option->state = extension_loaded('xml');
$option->notice = null;
$options[] = $option;
// Check for database support.
// We are satisfied if there is at least one database driver available.
$available = JDatabase::getConnectors();
$option = new stdClass;
$option->label = JText::_('INSTL_DATABASE_SUPPORT');
$option->label .= '<br />(' .implode(', ', $available). ')';
$option->state = count($available);
$option->notice = null;
$options[] = $option;
// Check for mbstring options.
if (extension_loaded('mbstring')) {
// Check for default MB language.
$option = new stdClass;
$option->label = JText::_('INSTL_MB_LANGUAGE_IS_DEFAULT');
$option->state = (strtolower(ini_get('mbstring.language')) == 'neutral');
$option->notice = ($option->state) ? null : JText::_('INSTL_NOTICEMBLANGNOTDEFAULT');
$options[] = $option;
// Check for MB function overload.
$option = new stdClass;
$option->label = JText::_('INSTL_MB_STRING_OVERLOAD_OFF');
$option->state = (ini_get('mbstring.func_overload') == 0);
$option->notice = ($option->state) ? null : JText::_('INSTL_NOTICEMBSTRINGOVERLOAD');
$options[] = $option;
}
// Check for a missing native parse_ini_file implementation
$option = new stdClass;
$option->label = JText::_('INSTL_PARSE_INI_FILE_AVAILABLE');
$option->state = $this->getIniParserAvailability();
$option->notice = null;
$options[] = $option;
// Check for missing native json_encode / json_decode support
$option = new stdClass;
$option->label = JText::_('INSTL_JSON_SUPPORT_AVAILABLE');
$option->state = function_exists('json_encode') && function_exists('json_decode');
$option->notice = null;
$options[] = $option;
// Check for configuration file writeable.
$option = new stdClass;
$option->label = 'configuration.php '.JText::_('INSTL_WRITABLE');
$option->state = (is_writable('../configuration.php') || (!file_exists('../configuration.php') && is_writable('../')));
$option->notice = ($option->state) ? null : JText::_('INSTL_NOTICEYOUCANSTILLINSTALL');
$options[] = $option;
return $options;
}
/**
* Checks if all of the mandatory PHP options are met
*
* @return boolean
* @since 1.6
*/
public function getPhpOptionsSufficient()
{
$result = true;
$options = $this->getPhpOptions();
foreach ($options as $option)
{
if (is_null($option->notice)) {
$result = ($result && $option->state);
}
}
return $result;
}
/**
* Gets PHP Settings.
*
* @return array
* @since 1.6
*/
public function getPhpSettings()
{
// Initialise variables.
$settings = array();
// Check for safe mode.
$setting = new stdClass;
$setting->label = JText::_('INSTL_SAFE_MODE');
$setting->state = (bool) ini_get('safe_mode');
$setting->recommended = false;
$settings[] = $setting;
// Check for display errors.
$setting = new stdClass;
$setting->label = JText::_('INSTL_DISPLAY_ERRORS');
$setting->state = (bool) ini_get('display_errors');
$setting->recommended = false;
$settings[] = $setting;
// Check for file uploads.
$setting = new stdClass;
$setting->label = JText::_('INSTL_FILE_UPLOADS');
$setting->state = (bool) ini_get('file_uploads');
$setting->recommended = true;
$settings[] = $setting;
// Check for magic quotes runtimes.
$setting = new stdClass;
$setting->label = JText::_('INSTL_MAGIC_QUOTES_RUNTIME');
$setting->state = (bool) ini_get('magic_quotes_runtime');
$setting->recommended = false;
$settings[] = $setting;
// Check for magic quotes gpc.
$setting = new stdClass;
$setting->label = JText::_('INSTL_MAGIC_QUOTES_GPC');
$setting->state = (bool) ini_get('magic_quotes_gpc');
$setting->recommended = false;
$settings[] = $setting;
// Check for register globals.
$setting = new stdClass;
$setting->label = JText::_('INSTL_REGISTER_GLOBALS');
$setting->state = (bool) ini_get('register_globals');
$setting->recommended = false;
$settings[] = $setting;
// Check for output buffering.
$setting = new stdClass;
$setting->label = JText::_('INSTL_OUTPUT_BUFFERING');
$setting->state = (bool) ini_get('output_buffering');
$setting->recommended = false;
$settings[] = $setting;
// Check for session auto-start.
$setting = new stdClass;
$setting->label = JText::_('INSTL_SESSION_AUTO_START');
$setting->state = (bool) ini_get('session.auto_start');
$setting->recommended = false;
$settings[] = $setting;
// Check for native ZIP support
$setting = new stdClass;
$setting->label = JText::_('INSTL_ZIP_SUPPORT_AVAILABLE');
$setting->state = function_exists('zip_open') && function_exists('zip_read');
$setting->recommended = true;
$settings[] = $setting;
return $settings;
}
/**
* Method to validate the form data.
*
* @param array $data The form data.
* @param string $view The view.
*
* @return mixed Array of filtered data if valid, false otherwise.
* @since 1.6
*/
public function validate($data, $view = null)
{
// Get the form.
$form = $this->getForm($view);
// Check for an error.
if ($form === false) {
return false;
}
// Filter and validate the form data.
$data = $form->filter($data);
$return = $form->validate($data);
// Check for an error.
if ($return instanceof Exception) {
$this->setError($return->getMessage());
return false;
}
// Check the validation results.
if ($return === false) {
// Get the validation messages from the form.
foreach ($form->getErrors() as $message)
{
$this->setError($message);
}
return false;
}
return $data;
}
}