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<?php
declare(strict_types=1);
namespace PhpMyAdmin;
use PhpMyAdmin\Html\Generator;
use PhpMyAdmin\Query\Compatibility;
use PhpMyAdmin\Server\Privileges;
use function __;
use function strlen;
/**
* Functions for user password
*/
class UserPassword
{
/** @var Privileges */
private $serverPrivileges;
/**
* @param Privileges $serverPrivileges Privileges object
*/
public function __construct(Privileges $serverPrivileges)
{
$this->serverPrivileges = $serverPrivileges;
}
/**
* Generate the message
*
* @return array error value and message
*/
public function setChangePasswordMsg()
{
$error = false;
$message = Message::success(__('The profile has been updated.'));
if ($_POST['nopass'] != '1') {
if (strlen($_POST['pma_pw']) === 0 || strlen($_POST['pma_pw2']) === 0) {
$message = Message::error(__('The password is empty!'));
$error = true;
} elseif ($_POST['pma_pw'] !== $_POST['pma_pw2']) {
$message = Message::error(
__('The passwords aren\'t the same!')
);
$error = true;
} elseif (strlen($_POST['pma_pw']) > 256) {
$message = Message::error(__('Password is too long!'));
$error = true;
}
}
return [
'error' => $error,
'msg' => $message,
];
}
/**
* Change the password
*
* @param string $password New password
*/
public function changePassword($password): string
{
$GLOBALS['auth_plugin'] = $GLOBALS['auth_plugin'] ?? null;
$hashing_function = $this->changePassHashingFunction();
[$username, $hostname] = $GLOBALS['dbi']->getCurrentUserAndHost();
$serverVersion = $GLOBALS['dbi']->getVersion();
if (isset($_POST['authentication_plugin']) && ! empty($_POST['authentication_plugin'])) {
$orig_auth_plugin = $_POST['authentication_plugin'];
} else {
$orig_auth_plugin = $this->serverPrivileges->getCurrentAuthenticationPlugin('change', $username, $hostname);
}
$sql_query = 'SET password = '
. ($password == '' ? '\'\'' : $hashing_function . '(\'***\')');
$isPerconaOrMySql = Compatibility::isMySqlOrPerconaDb();
if ($isPerconaOrMySql && $serverVersion >= 50706) {
$sql_query = 'ALTER USER \'' . $GLOBALS['dbi']->escapeString($username)
. '\'@\'' . $GLOBALS['dbi']->escapeString($hostname)
. '\' IDENTIFIED WITH ' . $orig_auth_plugin . ' BY '
. ($password == '' ? '\'\'' : '\'***\'');
} elseif (
($isPerconaOrMySql && $serverVersion >= 50507)
|| (Compatibility::isMariaDb() && $serverVersion >= 50200)
) {
// For MySQL and Percona versions 5.5.7+ and MariaDB versions 5.2+,
// explicitly set value of `old_passwords` so that
// it does not give an error while using
// the PASSWORD() function
if ($orig_auth_plugin === 'sha256_password') {
$value = 2;
} else {
$value = 0;
}
$GLOBALS['dbi']->tryQuery('SET `old_passwords` = ' . $value . ';');
}
$this->changePassUrlParamsAndSubmitQuery(
$username,
$hostname,
$password,
$sql_query,
$hashing_function,
$orig_auth_plugin
);
$GLOBALS['auth_plugin']->handlePasswordChange($password);
return $sql_query;
}
/**
* Generate the hashing function
*
* @return string
*/
private function changePassHashingFunction()
{
if (isset($_POST['authentication_plugin']) && $_POST['authentication_plugin'] === 'mysql_old_password') {
$hashing_function = 'OLD_PASSWORD';
} else {
$hashing_function = 'PASSWORD';
}
return $hashing_function;
}
/**
* Changes password for a user
*
* @param string $username Username
* @param string $hostname Hostname
* @param string $password Password
* @param string $sql_query SQL query
* @param string $hashing_function Hashing function
* @param string $orig_auth_plugin Original Authentication Plugin
*/
private function changePassUrlParamsAndSubmitQuery(
$username,
$hostname,
$password,
$sql_query,
$hashing_function,
$orig_auth_plugin
): void {
$err_url = Url::getFromRoute('/user-password');
$serverVersion = $GLOBALS['dbi']->getVersion();
if (Compatibility::isMySqlOrPerconaDb() && $serverVersion >= 50706) {
$local_query = 'ALTER USER \'' . $GLOBALS['dbi']->escapeString($username)
. '\'@\'' . $GLOBALS['dbi']->escapeString($hostname) . '\''
. ' IDENTIFIED with ' . $orig_auth_plugin . ' BY '
. ($password == ''
? '\'\''
: '\'' . $GLOBALS['dbi']->escapeString($password) . '\'');
} elseif (
Compatibility::isMariaDb()
&& $serverVersion >= 50200
&& $serverVersion < 100100
&& $orig_auth_plugin !== ''
) {
if ($orig_auth_plugin === 'mysql_native_password') {
// Set the hashing method used by PASSWORD()
// to be 'mysql_native_password' type
$GLOBALS['dbi']->tryQuery('SET old_passwords = 0;');
} elseif ($orig_auth_plugin === 'sha256_password') {
// Set the hashing method used by PASSWORD()
// to be 'sha256_password' type
$GLOBALS['dbi']->tryQuery('SET `old_passwords` = 2;');
}
$hashedPassword = $this->serverPrivileges->getHashedPassword($_POST['pma_pw']);
$local_query = 'UPDATE `mysql`.`user` SET'
. " `authentication_string` = '" . $hashedPassword
. "', `Password` = '', "
. " `plugin` = '" . $orig_auth_plugin . "'"
. " WHERE `User` = '" . $GLOBALS['dbi']->escapeString($username)
. "' AND Host = '" . $GLOBALS['dbi']->escapeString($hostname) . "';";
} else {
$local_query = 'SET password = ' . ($password == ''
? '\'\''
: $hashing_function . '(\''
. $GLOBALS['dbi']->escapeString($password) . '\')');
}
if (! @$GLOBALS['dbi']->tryQuery($local_query)) {
Generator::mysqlDie(
$GLOBALS['dbi']->getError(),
$sql_query,
false,
$err_url
);
}
// Flush privileges after successful password change
$GLOBALS['dbi']->tryQuery('FLUSH PRIVILEGES;');
}
/**
* @psalm-param non-empty-string $route
*/
public function getFormForChangePassword(?string $username, ?string $hostname, string $route): string
{
return $this->serverPrivileges->getFormForChangePassword($username ?? '', $hostname ?? '', false, $route);
}
}
|
