Your IP : 216.73.216.38
<?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;
jimport('joomla.filesystem.file');
require_once JPATH_INSTALLATION.'/helpers/database.php';
/**
* Database configuration model for the Joomla Core Installer.
*
* @package Joomla.Installation
* @since 1.6
*/
class JInstallationModelDatabase extends JModelLegacy
{
static protected $userId = 0;
static protected function generateRandUserId()
{
$session = JFactory::getSession();
$randUserId = $session->get('randUserId');
if (empty($randUserId)) {
// Create the ID for the root user only once and store in session
$randUserId = mt_rand(1, 1000);
$session->set('randUserId', $randUserId);
}
return $randUserId;
}
static public function resetRandUserId()
{
self::$userId = 0;
$session = JFactory::getSession();
$session->set('randUserId', self::$userId);
}
static public function getUserId()
{
if (!self::$userId) {
self::$userId = self::generateRandUserId();
}
return self::$userId;
}
public function initialise($options)
{
// Get the options as a JObject for easier handling.
$options = JArrayHelper::toObject($options, 'JObject');
// Load the back-end language files so that the DB error messages work
$jlang = JFactory::getLanguage();
// Pre-load en-GB in case the chosen language files do not exist
$jlang->load('joomla', JPATH_ADMINISTRATOR, 'en-GB', true);
// Load the selected language
$jlang->load('joomla', JPATH_ADMINISTRATOR, $options->language, true);
// Ensure a database type was selected.
if (empty($options->db_type)) {
$this->setError(JText::_('INSTL_DATABASE_INVALID_TYPE'));
return false;
}
// Ensure that a valid hostname and user name were input.
if (empty($options->db_host) || empty($options->db_user)) {
$this->setError(JText::_('INSTL_DATABASE_INVALID_DB_DETAILS'));
return false;
}
// Ensure that a database name was input.
if (empty($options->db_name)) {
$this->setError(JText::_('INSTL_DATABASE_EMPTY_NAME'));
return false;
}
// Validate database table prefix.
if (!preg_match('#^[a-zA-Z]+[a-zA-Z0-9_]*$#', $options->db_prefix)) {
$this->setError(JText::_('INSTL_DATABASE_PREFIX_INVALID_CHARS'));
return false;
}
// Validate length of database table prefix.
if (strlen($options->db_prefix) > 15) {
$this->setError(JText::_('INSTL_DATABASE_FIX_TOO_LONG'));
return false;
}
// Validate length of database name.
if (strlen($options->db_name) > 64) {
$this->setError(JText::_('INSTL_DATABASE_NAME_TOO_LONG'));
return false;
}
// If the database is not yet created, create it.
if (empty($options->db_created)) {
// Get a database object.
try
{
$db = JInstallationHelperDatabase::getDbo($options->db_type, $options->db_host, $options->db_user, $options->db_pass, null, $options->db_prefix, false);
// Check database version.
$db_version = $db->getVersion();
$type = $options->db_type;
}
catch (RuntimeException $e)
{
$this->setError(JText::sprintf('INSTL_DATABASE_COULD_NOT_CONNECT', $e->getMessage()));
return false;
}
if (!$db->isMinimumVersion()) {
$this->setError(JText::sprintf('INSTL_DATABASE_INVALID_'.strtoupper($type).'_VERSION', $db_version));
return false;
}
if ($type == ('mysql' || 'mysqli')) {
// @internal MySQL versions pre 5.1.6 forbid . / or \ or NULL
if ((preg_match('#[\\\/\.\0]#', $options->db_name)) && (!version_compare($db_version, '5.1.6', '>='))) {
$this->setError(JText::sprintf('INSTL_DATABASE_INVALID_NAME', $db_version));
return false;
}
}
// @internal Check for spaces in beginning or end of name
if (strlen(trim($options->db_name)) <> strlen($options->db_name)) {
$this->setError(JText::_('INSTL_DATABASE_NAME_INVALID_SPACES'));
return false;
}
// @internal Check for asc(00) Null in name
if (strpos($options->db_name, chr(00)) !== false) {
$this->setError(JText::_('INSTL_DATABASE_NAME_INVALID_CHAR'));
return false;
}
// Try to select the database
try
{
$db->select($options->db_name);
}
catch (RuntimeException $e)
{
// If the database could not be selected, attempt to create it and then select it.
if ($this->createDatabase($db, $options->db_name)) {
$db->select($options->db_name);
} else {
$this->setError(JText::sprintf('INSTL_DATABASE_ERROR_CREATE', $options->db_name));
return false;
}
}
// Set the character set to UTF-8 for pre-existing databases.
$this->setDatabaseCharset($db, $options->db_name);
// Should any old database tables be removed or backed up?
if ($options->db_old == 'remove') {
// Attempt to delete the old database tables.
if (!$this->deleteDatabase($db, $options->db_name, $options->db_prefix)) {
$this->setError(JText::_('INSTL_DATABASE_ERROR_DELETE'));
return false;
}
} else {
// If the database isn't being deleted, back it up.
if (!$this->backupDatabase($db, $options->db_name, $options->db_prefix)) {
$this->setError(JText::_('INSTL_DATABASE_ERROR_BACKINGUP'));
return false;
}
}
// Set the appropriate schema script based on UTF-8 support.
if ($type == 'mysqli' || $type == 'mysql')
{
$schema = 'sql/mysql/joomla.sql';
}
elseif ($type == 'sqlsrv' || $type == 'sqlazure')
{
$schema = 'sql/sqlazure/joomla.sql';
}
else
{
$schema = 'sql/'. $type . '/joomla.sql';
}
// Check if the schema is a valid file
if (!JFile::exists($schema)) {
$this->setError(JText::sprintf('INSTL_ERROR_DB', JText::_('INSTL_DATABASE_NO_SCHEMA')));
return false;
}
// Attempt to import the database schema.
if (!$this->populateDatabase($db, $schema)) {
$this->setError(JText::sprintf('INSTL_ERROR_DB', $this->getError()));
return false;
}
// Attempt to update the table #__schema.
$files = JFolder::files(JPATH_ADMINISTRATOR . '/components/com_admin/sql/updates/mysql/', '\.sql$');
if (empty($files)) {
$this->setError(JText::_('INSTL_ERROR_INITIALISE_SCHEMA'));
return false;
}
$version = '';
foreach ($files as $file) {
if (version_compare($version, JFile::stripExt($file)) <0) {
$version = JFile::stripExt($file);
}
}
$query = $db->getQuery(true);
$query->insert('#__schemas');
$query->columns(
array(
$db->quoteName('extension_id'),
$db->quoteName('version_id')));
$query->values('700, '. $db->quote($version)) ;
$db->setQuery($query);
try
{
$db->execute();
}
catch (RuntimeException $e)
{
$this->setError($e->getMessage());
return false;
}
// Attempt to refresh manifest caches
$query = $db->getQuery(true);
$query->select('*');
$query->from('#__extensions');
$db->setQuery($query);
try
{
$extensions = $db->loadObjectList();
}
catch (RuntimeException $e)
{
$this->setError($e->getMessage());
$return = false;
}
JFactory::$database = $db;
$installer = JInstaller::getInstance();
foreach ($extensions as $extension) {
if (!$installer->refreshManifestCache($extension->extension_id)) {
$this->setError(JText::sprintf('INSTL_DATABASE_COULD_NOT_REFRESH_MANIFEST_CACHE', $extension->name));
return false;
}
}
// Load the localise.sql for translating the data in joomla.sql/joomla_backwards.sql
$dblocalise = 'sql/'.(($type == 'mysqli') ? 'mysql' : $type).'/localise.sql';
if (JFile::exists($dblocalise)) {
if (!$this->populateDatabase($db, $dblocalise)) {
$this->setError(JText::sprintf('INSTL_ERROR_DB', $this->getError()));
return false;
}
}
$dblocalise_sql = 'sql/'.(($type == 'sqlsrv') ? 'sqlazure' : $type).'/localise.sql';
if (JFile::exists($dblocalise_sql)) {
if (!$this->populateDatabase($db, $dblocalise_sql)) {
$this->setError(JText::sprintf('INSTL_ERROR_DB', $this->getError()));
return false;
}
}
// Handle default backend language setting. This feature is available for localized versions of Joomla 1.5.
$app = JFactory::getApplication();
$languages = $app->getLocaliseAdmin($db);
if (in_array($options->language, $languages['admin']) || in_array($options->language, $languages['site'])) {
// Build the language parameters for the language manager.
$params = array();
// Set default administrator/site language to sample data values:
$params['administrator'] = 'en-GB';
$params['site'] = 'en-GB';
if (in_array($options->language, $languages['admin'])) {
$params['administrator'] = $options->language;
}
if (in_array($options->language, $languages['site'])) {
$params['site'] = $options->language;
}
$params = json_encode($params);
// Update the language settings in the language manager.
$db->setQuery(
'UPDATE '.$db->quoteName('#__extensions') .
' SET '.$db->quoteName('params').' = '.$db->Quote($params) .
' WHERE '.$db->quoteName('element').'=\'com_languages\''
);
try
{
$db->execute();
}
catch (RuntimeException $e)
{
$this->setError($e->getMessage());
$return = false;
}
}
}
return true;
}
function installSampleData($options)
{
// Get the options as a JObject for easier handling.
$options = JArrayHelper::toObject($options, 'JObject');
// Get a database object.
try
{
$db = JInstallationHelperDatabase::getDBO($options->db_type, $options->db_host, $options->db_user, $options->db_pass, $options->db_name, $options->db_prefix);
}
catch (RuntimeException $e)
{
$this->setError(JText::sprintf('INSTL_DATABASE_COULD_NOT_CONNECT', $e->getMessage()));
return false;
}
// Build the path to the sample data file.
$type = $options->db_type;
if ($type == 'mysqli') {
$type = 'mysql';
}
elseif ($type == 'sqlsrv') {
$type = 'sqlazure';
}
$data = JPATH_INSTALLATION.'/sql/'.$type.'/' . $options->sample_file;
// Attempt to import the database schema.
if (!file_exists($data)) {
$this->setError(JText::sprintf('INSTL_DATABASE_FILE_DOES_NOT_EXIST', $data));
return false;
}
elseif (!$this->populateDatabase($db, $data)) {
$this->setError(JText::sprintf('INSTL_ERROR_DB', $this->getError()));
return false;
}
$this->postInstallSampleData($db);
return true;
}
/**
* method to update the user id of the sample data content to the new rand user id
*
* @param Database connector object $db
*/
protected function postInstallSampleData($db) {
// Create the ID for the root user
$userId = self::getUserId();
// update all created_by field of the tables with the random user id
// categories (created_user_id), contact_details, content, newsfeeds, weblinks
$updates_array = array(
'categories' => 'created_user_id',
'contact_details' => 'created_by',
'content' => 'created_by',
'newsfeeds' => 'created_by',
'weblinks' => 'created_by',
);
foreach ($updates_array as $table => $field) {
$db->setQuery(
'UPDATE '.$db->quoteName('#__' . $table) .
' SET '.$db->quoteName($field).' = '.$db->Quote($userId)
);
$db->query();
}
}
/**
* Method to backup all tables in a database with a given prefix.
*
* @param JDatabase &$db JDatabase object.
* @param string $name Name of the database to process.
* @param string $prefix Database table prefix.
*
* @return boolean True on success.
* @since 1.0
*/
public function backupDatabase(& $db, $name, $prefix)
{
// Initialise variables.
$return = true;
$backup = 'bak_' . $prefix;
// Get the tables in the database.
$tables = $db->getTableList();
if ($tables) {
foreach ($tables as $table)
{
// If the table uses the given prefix, back it up.
if (strpos($table, $prefix) === 0) {
// Backup table name.
$backupTable = str_replace($prefix, $backup, $table);
// Drop the backup table.
try
{
$db->dropTable($backupTable, true);
}
catch (RuntimeException $e)
{
$this->setError($e->getMessage());
$return = false;
}
// Rename the current table to the backup table.
try
{
$db->renameTable($table, $backupTable, $backup, $prefix);
}
catch (RuntimeException $e)
{
$this->setError($e->getMessage());
$return = false;
}
}
}
}
return $return;
}
/**
* Method to create a new database.
*
* @param JDatabase &$db JDatabase object.
* @param string $name Name of the database to create.
*
* @return boolean True on success.
* @since 1.0
*/
public function createDatabase(& $db, $name)
{
// Build the create database query.
$query = 'CREATE DATABASE '.$db->quoteName($name).' CHARACTER SET `utf8`';
// Run the create database query.
$db->setQuery($query);
try
{
$db->execute();
}
catch (RuntimeException $e)
{
// If an error occurred return false.
return false;
}
return true;
}
/**
* Method to delete all tables in a database with a given prefix.
*
* @param JDatabase &$db JDatabase object.
* @param string $name Name of the database to process.
* @param string $prefix Database table prefix.
*
* @return boolean True on success.
* @since 1.0
*/
public function deleteDatabase(& $db, $name, $prefix)
{
// Initialise variables.
$return = true;
// Get the tables in the database.
$tables = $db->getTableList();
if ($tables)
{
foreach ($tables as $table)
{
// If the table uses the given prefix, drop it.
if (strpos($table, $prefix) === 0) {
// Drop the table.
try
{
$db->dropTable($table);
}
catch (RuntimeException $e)
{
$this->setError($e->getMessage());
$return = false;
}
}
}
}
return $return;
}
/**
* Method to import a database schema from a file.
*
* @param JDatabase &$db JDatabase object.
* @param string $schema Path to the schema file.
*
* @return boolean True on success.
* @since 1.0
*/
public function populateDatabase(& $db, $schema)
{
// Initialise variables.
$return = true;
// Get the contents of the schema file.
if (!($buffer = file_get_contents($schema))) {
$this->setError($db->getErrorMsg());
return false;
}
// Get an array of queries from the schema and process them.
$queries = $this->_splitQueries($buffer);
foreach ($queries as $query)
{
// Trim any whitespace.
$query = trim($query);
// If the query isn't empty and is not a comment, execute it.
if (!empty($query) && ($query{0} != '#')) {
// Execute the query.
$db->setQuery($query);
try
{
$db->execute();
}
catch (RuntimeException $e)
{
$this->setError($e->getMessage());
$return = false;
}
}
}
return $return;
}
/**
* Method to set the database character set to UTF-8.
*
* @param JDatabase &$db JDatabase object.
* @param string $name Name of the database to process.
*
* @return boolean True on success.
* @since 1.0
*/
public function setDatabaseCharset(& $db, $name)
{
// Run the create database query.
$db->setQuery(
'ALTER DATABASE '.$db->quoteName($name).' CHARACTER' .
' SET `utf8`'
);
try
{
$db->execute();
}
catch (RuntimeException $e)
{
return false;
}
return true;
}
/**
* Method to split up queries from a schema file into an array.
*
* @param string $sql SQL schema.
*
* @return array Queries to perform.
* @since 1.0
* @access protected
*/
function _splitQueries($sql)
{
// Initialise variables.
$buffer = array();
$queries = array();
$in_string = false;
// Trim any whitespace.
$sql = trim($sql);
// Remove comment lines.
$sql = preg_replace("/\n\#[^\n]*/", '', "\n".$sql);
// Parse the schema file to break up queries.
for ($i = 0; $i < strlen($sql) - 1; $i ++)
{
if ($sql[$i] == ";" && !$in_string) {
$queries[] = substr($sql, 0, $i);
$sql = substr($sql, $i +1);
$i = 0;
}
if ($in_string && ($sql[$i] == $in_string) && $buffer[1] != "\\") {
$in_string = false;
}
elseif (!$in_string && ($sql[$i] == '"' || $sql[$i] == "'") && (!isset ($buffer[0]) || $buffer[0] != "\\")) {
$in_string = $sql[$i];
}
if (isset ($buffer[1])) {
$buffer[0] = $buffer[1];
}
$buffer[1] = $sql[$i];
}
// If the is anything left over, add it to the queries.
if (!empty($sql)) {
$queries[] = $sql;
}
return $queries;
}
}