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<?php
namespace OC\Setup;
class MySQL {
public static function setupDatabase($dbhost, $dbuser, $dbpass, $dbname, $dbtableprefix, $username) {
//check if the database user has admin right
$l = \OC_Setup::getTrans();
$connection = @mysql_connect($dbhost, $dbuser, $dbpass);
if(!$connection) {
throw new DatabaseSetupException($l->t('MySQL username and/or password not valid'),
$l->t('You need to enter either an existing account or the administrator.'));
}
$oldUser=\OC_Config::getValue('dbuser', false);
//this should be enough to check for admin rights in mysql
$query="SELECT user FROM mysql.user WHERE user='$dbuser'";
if(mysql_query($query, $connection)) {
//use the admin login data for the new database user
//add prefix to the mysql user name to prevent collisions
$dbusername=substr('oc_'.$username, 0, 16);
if($dbusername!=$oldUser) {
//hash the password so we don't need to store the admin config in the config file
$dbpassword=OC_Util::generate_random_bytes(30);
self::createDBUser($dbusername, $dbpassword, $connection);
\OC_Config::setValue('dbuser', $dbusername);
\OC_Config::setValue('dbpassword', $dbpassword);
}
//create the database
self::createDatabase($dbname, $dbusername, $connection);
}
else {
if($dbuser!=$oldUser) {
\OC_Config::setValue('dbuser', $dbuser);
\OC_Config::setValue('dbpassword', $dbpass);
}
//create the database
self::createDatabase($dbname, $dbuser, $connection);
}
//fill the database if needed
$query='select count(*) from information_schema.tables'
." where table_schema='$dbname' AND table_name = '{$dbtableprefix}users';";
$result = mysql_query($query, $connection);
if($result) {
$row=mysql_fetch_row($result);
}
if(!$result or $row[0]==0) {
\OC_DB::createDbFromStructure('db_structure.xml');
}
mysql_close($connection);
}
private static function createDatabase($name, $user, $connection) {
//we cant use OC_BD functions here because we need to connect as the administrative user.
$l = \OC_Setup::getTrans();
$query = "CREATE DATABASE IF NOT EXISTS `$name`";
$result = mysql_query($query, $connection);
if(!$result) {
$entry = $l->t('DB Error: "%s"', array(mysql_error($connection))) . '<br />';
$entry .= $l->t('Offending command was: "%s"', array($query)) . '<br />';
\OC_Log::write('setup.mssql', $entry, \OC_Log::WARN);
}
$query="GRANT ALL PRIVILEGES ON `$name` . * TO '$user'";
//this query will fail if there aren't the right permissions, ignore the error
mysql_query($query, $connection);
}
private static function createDBUser($name, $password, $connection) {
// we need to create 2 accounts, one for global use and one for local user. if we don't specify the local one,
// the anonymous user would take precedence when there is one.
$l = \OC_Setup::getTrans();
$query = "CREATE USER '$name'@'localhost' IDENTIFIED BY '$password'";
$result = mysql_query($query, $connection);
if (!$result) {
throw new DatabaseSetupException($l->t("MySQL user '%s'@'localhost' exists already.", array($name)),
$l->t("Drop this user from MySQL", array($name)));
}
$query = "CREATE USER '$name'@'%' IDENTIFIED BY '$password'";
$result = mysql_query($query, $connection);
if (!$result) {
throw new DatabaseSetupException($l->t("MySQL user '%s'@'%%' already exists", array($name)),
$l->t("Drop this user from MySQL."));
}
}
}
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