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253
phpMyAdmin/libraries/classes/UserPassword.php
Executable file
253
phpMyAdmin/libraries/classes/UserPassword.php
Executable file
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<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* Holds the PhpMyAdmin\UserPassword class
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*
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* @package PhpMyAdmin
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*/
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namespace PhpMyAdmin;
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use PhpMyAdmin\Core;
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use PhpMyAdmin\Message;
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use PhpMyAdmin\Response;
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use PhpMyAdmin\Server\Privileges;
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use PhpMyAdmin\Url;
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use PhpMyAdmin\Util;
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/**
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* Functions for user_password.php
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*
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* @package PhpMyAdmin
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*/
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class UserPassword
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{
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/**
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* Send the message as an ajax request
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*
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* @param array $change_password_message Message to display
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* @param string $sql_query SQL query executed
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*
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* @return void
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*/
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public function getChangePassMessage(array $change_password_message, $sql_query = '')
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{
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$response = Response::getInstance();
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if ($response->isAjax()) {
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/**
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* If in an Ajax request, we don't need to show the rest of the page
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*/
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if ($change_password_message['error']) {
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$response->addJSON('message', $change_password_message['msg']);
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$response->setRequestStatus(false);
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} else {
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$sql_query = Util::getMessage(
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$change_password_message['msg'],
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$sql_query,
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'success'
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);
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$response->addJSON('message', $sql_query);
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}
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exit;
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}
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}
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/**
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* Generate the message
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*
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* @return array error value and message
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*/
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public function setChangePasswordMsg()
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{
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$error = false;
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$message = Message::success(__('The profile has been updated.'));
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if (($_POST['nopass'] != '1')) {
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if (strlen($_POST['pma_pw']) === 0 || strlen($_POST['pma_pw2']) === 0) {
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$message = Message::error(__('The password is empty!'));
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$error = true;
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} elseif ($_POST['pma_pw'] !== $_POST['pma_pw2']) {
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$message = Message::error(
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__('The passwords aren\'t the same!')
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);
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$error = true;
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} elseif (strlen($_POST['pma_pw']) > 256) {
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$message = Message::error(__('Password is too long!'));
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$error = true;
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}
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}
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return array('error' => $error, 'msg' => $message);
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}
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/**
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* Change the password
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*
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* @param string $password New password
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* @param string $message Message
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* @param array $change_password_message Message to show
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*
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* @return void
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*/
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public function changePassword($password, $message, array $change_password_message)
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{
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global $auth_plugin;
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$hashing_function = $this->changePassHashingFunction();
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list($username, $hostname) = $GLOBALS['dbi']->getCurrentUserAndHost();
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$serverType = Util::getServerType();
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$serverVersion = $GLOBALS['dbi']->getVersion();
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if (isset($_POST['authentication_plugin'])
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&& ! empty($_POST['authentication_plugin'])
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) {
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$orig_auth_plugin = $_POST['authentication_plugin'];
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} else {
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$orig_auth_plugin = Privileges::getCurrentAuthenticationPlugin(
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'change', $username, $hostname
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);
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}
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$sql_query = 'SET password = '
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. (($password == '') ? '\'\'' : $hashing_function . '(\'***\')');
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if ($serverType == 'MySQL'
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&& $serverVersion >= 50706
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) {
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$sql_query = 'ALTER USER \'' . $GLOBALS['dbi']->escapeString($username)
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. '\'@\'' . $GLOBALS['dbi']->escapeString($hostname)
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. '\' IDENTIFIED WITH ' . $orig_auth_plugin . ' BY '
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. (($password == '') ? '\'\'' : '\'***\'');
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} elseif (($serverType == 'MySQL'
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&& $serverVersion >= 50507)
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|| ($serverType == 'MariaDB'
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&& $serverVersion >= 50200)
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) {
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// For MySQL versions 5.5.7+ and MariaDB versions 5.2+,
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// explicitly set value of `old_passwords` so that
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// it does not give an error while using
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// the PASSWORD() function
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if ($orig_auth_plugin == 'sha256_password') {
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$value = 2;
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} else {
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$value = 0;
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}
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$GLOBALS['dbi']->tryQuery('SET `old_passwords` = ' . $value . ';');
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}
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$this->changePassUrlParamsAndSubmitQuery(
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$username, $hostname, $password,
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$sql_query, $hashing_function, $orig_auth_plugin
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);
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$auth_plugin->handlePasswordChange($password);
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$this->getChangePassMessage($change_password_message, $sql_query);
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$this->changePassDisplayPage($message, $sql_query);
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}
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/**
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* Generate the hashing function
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*
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* @return string $hashing_function
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*/
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private function changePassHashingFunction()
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{
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if (Core::isValid(
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$_POST['authentication_plugin'], 'identical', 'mysql_old_password'
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)) {
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$hashing_function = 'OLD_PASSWORD';
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} else {
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$hashing_function = 'PASSWORD';
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}
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return $hashing_function;
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}
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/**
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* Changes password for a user
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*
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* @param string $username Username
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* @param string $hostname Hostname
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* @param string $password Password
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* @param string $sql_query SQL query
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* @param string $hashing_function Hashing function
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* @param string $orig_auth_plugin Original Authentication Plugin
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*
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* @return void
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*/
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private function changePassUrlParamsAndSubmitQuery(
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$username, $hostname, $password, $sql_query, $hashing_function, $orig_auth_plugin
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) {
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$err_url = 'user_password.php' . Url::getCommon();
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$serverType = Util::getServerType();
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$serverVersion = $GLOBALS['dbi']->getVersion();
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if ($serverType == 'MySQL' && $serverVersion >= 50706) {
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$local_query = 'ALTER USER \'' . $GLOBALS['dbi']->escapeString($username)
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. '\'@\'' . $GLOBALS['dbi']->escapeString($hostname) . '\''
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. ' IDENTIFIED with ' . $orig_auth_plugin . ' BY '
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. (($password == '')
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? '\'\''
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: '\'' . $GLOBALS['dbi']->escapeString($password) . '\'');
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} elseif ($serverType == 'MariaDB'
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&& $serverVersion >= 50200
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&& $serverVersion < 100100
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&& $orig_auth_plugin !== ''
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) {
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if ($orig_auth_plugin == 'mysql_native_password') {
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// Set the hashing method used by PASSWORD()
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// to be 'mysql_native_password' type
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$GLOBALS['dbi']->tryQuery('SET old_passwords = 0;');
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} elseif ($orig_auth_plugin == 'sha256_password') {
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// Set the hashing method used by PASSWORD()
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// to be 'sha256_password' type
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$GLOBALS['dbi']->tryQuery('SET `old_passwords` = 2;');
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}
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$hashedPassword = Privileges::getHashedPassword($_POST['pma_pw']);
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$local_query = "UPDATE `mysql`.`user` SET"
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. " `authentication_string` = '" . $hashedPassword
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. "', `Password` = '', "
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. " `plugin` = '" . $orig_auth_plugin . "'"
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. " WHERE `User` = '" . $GLOBALS['dbi']->escapeString($username)
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. "' AND Host = '" . $GLOBALS['dbi']->escapeString($hostname) . "';";
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} else {
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$local_query = 'SET password = ' . (($password == '')
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? '\'\''
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: $hashing_function . '(\''
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. $GLOBALS['dbi']->escapeString($password) . '\')');
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}
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if (! @$GLOBALS['dbi']->tryQuery($local_query)) {
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Util::mysqlDie(
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$GLOBALS['dbi']->getError(),
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$sql_query,
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false,
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$err_url
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);
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}
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// Flush privileges after successful password change
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$GLOBALS['dbi']->tryQuery("FLUSH PRIVILEGES;");
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}
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/**
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* Display the page
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*
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* @param string $message Message
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* @param string $sql_query SQL query
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*
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* @return void
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*/
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private function changePassDisplayPage($message, $sql_query)
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{
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echo '<h1>' , __('Change password') , '</h1>' , "\n\n";
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echo Util::getMessage(
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$message, $sql_query, 'success'
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);
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echo '<a href="index.php' , Url::getCommon()
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, ' target="_parent">' , "\n"
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, '<strong>' , __('Back') , '</strong></a>';
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exit;
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}
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}
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