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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Holds the PhpMyAdmin\UserPassword class
*
* @package PhpMyAdmin
*/
namespace PhpMyAdmin;
use PhpMyAdmin\Core;
use PhpMyAdmin\Message;
use PhpMyAdmin\Response;
use PhpMyAdmin\Server\Privileges;
use PhpMyAdmin\Url;
use PhpMyAdmin\Util;
/**
* Functions for user_password.php
*
* @package PhpMyAdmin
*/
class UserPassword
{
/**
* Send the message as an ajax request
*
* @param array $change_password_message Message to display
* @param string $sql_query SQL query executed
*
* @return void
*/
public function getChangePassMessage(array $change_password_message, $sql_query = '')
{
$response = Response::getInstance();
if ($response->isAjax()) {
/**
* If in an Ajax request, we don't need to show the rest of the page
*/
if ($change_password_message['error']) {
$response->addJSON('message', $change_password_message['msg']);
$response->setRequestStatus(false);
} else {
$sql_query = Util::getMessage(
$change_password_message['msg'],
$sql_query,
'success'
);
$response->addJSON('message', $sql_query);
}
exit;
}
}
/**
* 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 array('error' => $error, 'msg' => $message);
}
/**
* Change the password
*
* @param string $password New password
* @param string $message Message
* @param array $change_password_message Message to show
*
* @return void
*/
public function changePassword($password, $message, array $change_password_message)
{
global $auth_plugin;
$hashing_function = $this->changePassHashingFunction();
list($username, $hostname) = $GLOBALS['dbi']->getCurrentUserAndHost();
$serverType = Util::getServerType();
$serverVersion = $GLOBALS['dbi']->getVersion();
if (isset($_POST['authentication_plugin'])
&& ! empty($_POST['authentication_plugin'])
) {
$orig_auth_plugin = $_POST['authentication_plugin'];
} else {
$orig_auth_plugin = Privileges::getCurrentAuthenticationPlugin(
'change', $username, $hostname
);
}
$sql_query = 'SET password = '
. (($password == '') ? '\'\'' : $hashing_function . '(\'***\')');
if ($serverType == 'MySQL'
&& $serverVersion >= 50706
) {
$sql_query = 'ALTER USER \'' . $username . '\'@\'' . $hostname
. '\' IDENTIFIED WITH ' . $orig_auth_plugin . ' BY '
. (($password == '') ? '\'\'' : '\'***\'');
} elseif (($serverType == 'MySQL'
&& $serverVersion >= 50507)
|| ($serverType == 'MariaDB'
&& $serverVersion >= 50200)
) {
// For MySQL versions 5.5.7+ and MariaDB versions 5.2+,
// explicitly set value of `old_passwords` so that
// it does not give an error while using
// the PASSWORD() function
if ($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
);
$auth_plugin->handlePasswordChange($password);
$this->getChangePassMessage($change_password_message, $sql_query);
$this->changePassDisplayPage($message, $sql_query);
}
/**
* Generate the hashing function
*
* @return string $hashing_function
*/
private function changePassHashingFunction()
{
if (Core::isValid(
$_POST['authentication_plugin'], 'identical', '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
*
* @return void
*/
private function changePassUrlParamsAndSubmitQuery(
$username, $hostname, $password, $sql_query, $hashing_function, $orig_auth_plugin
) {
$err_url = 'user_password.php' . Url::getCommon();
$serverType = Util::getServerType();
$serverVersion = $GLOBALS['dbi']->getVersion();
if ($serverType == 'MySQL' && $serverVersion >= 50706) {
$local_query = 'ALTER USER \'' . $username . '\'@\'' . $hostname . '\''
. ' IDENTIFIED with ' . $orig_auth_plugin . ' BY '
. (($password == '')
? '\'\''
: '\'' . $GLOBALS['dbi']->escapeString($password) . '\'');
} elseif ($serverType == 'MariaDB'
&& $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;');
}
$hashedPassword = Privileges::getHashedPassword($_POST['pma_pw']);
$local_query = "UPDATE `mysql`.`user` SET"
. " `authentication_string` = '" . $hashedPassword
. "', `Password` = '', "
. " `plugin` = '" . $orig_auth_plugin . "'"
. " WHERE `User` = '" . $username . "' AND Host = '"
. $hostname . "';";
} else {
$local_query = 'SET password = ' . (($password == '')
? '\'\''
: $hashing_function . '(\''
. $GLOBALS['dbi']->escapeString($password) . '\')');
}
if (! @$GLOBALS['dbi']->tryQuery($local_query)) {
Util::mysqlDie(
$GLOBALS['dbi']->getError(),
$sql_query,
false,
$err_url
);
}
// Flush privileges after successful password change
$GLOBALS['dbi']->tryQuery("FLUSH PRIVILEGES;");
}
/**
* Display the page
*
* @param string $message Message
* @param string $sql_query SQL query
*
* @return void
*/
private function changePassDisplayPage($message, $sql_query)
{
echo '<h1>' , __('Change password') , '</h1>' , "\n\n";
echo Util::getMessage(
$message, $sql_query, 'success'
);
echo '<a href="index.php' , Url::getCommon()
, ' target="_parent">' , "\n"
, '<strong>' , __('Back') , '</strong></a>';
exit;
}
}
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