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300
#pma/user_password.php
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300
#pma/user_password.php
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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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* displays and handles the form where the user can change his password
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* linked from index.php
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*
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* @package PhpMyAdmin
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*/
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/**
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* Gets some core libraries
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*/
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require_once './libraries/common.inc.php';
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/**
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* Libraries needed for some functions
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*/
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require_once './libraries/server_privileges.lib.php';
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$response = PMA\libraries\Response::getInstance();
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$header = $response->getHeader();
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$scripts = $header->getScripts();
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$scripts->addFile('server_privileges.js');
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/**
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* Displays an error message and exits if the user isn't allowed to use this
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* script
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*/
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if (! $GLOBALS['cfg']['ShowChgPassword']) {
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$GLOBALS['cfg']['ShowChgPassword'] = $GLOBALS['dbi']->selectDb('mysql');
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}
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if ($cfg['Server']['auth_type'] == 'config' || ! $cfg['ShowChgPassword']) {
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PMA\libraries\Message::error(
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__('You don\'t have sufficient privileges to be here right now!')
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)->display();
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exit;
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} // end if
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/**
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* If the "change password" form has been submitted, checks for valid values
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* and submit the query or logout
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*/
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if (isset($_REQUEST['nopass'])) {
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if ($_REQUEST['nopass'] == '1') {
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$password = '';
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} else {
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$password = $_REQUEST['pma_pw'];
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}
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$change_password_message = PMA_setChangePasswordMsg();
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$msg = $change_password_message['msg'];
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if (! $change_password_message['error']) {
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PMA_changePassword($password, $msg, $change_password_message);
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} else {
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PMA_getChangePassMessage($change_password_message);
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}
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}
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/**
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* If the "change password" form hasn't been submitted or the values submitted
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* aren't valid -> displays the form
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*/
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// Displays an error message if required
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if (isset($msg)) {
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$msg->display();
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unset($msg);
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}
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require_once './libraries/display_change_password.lib.php';
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echo PMA_getHtmlForChangePassword('change_pw', $username, $hostname);
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exit;
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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 $sql_query SQL query executed
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*
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* @return void
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*/
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function PMA_getChangePassMessage($change_password_message, $sql_query = '')
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{
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if ($GLOBALS['is_ajax_request'] == true) {
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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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$response = PMA\libraries\Response::getInstance();
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if ($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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$sql_query = PMA\libraries\Util::getMessage(
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$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', $sql_query);
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}
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exit;
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}
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}
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/**
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* Generate the message
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*
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* @return array error value and message
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*/
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function PMA_setChangePasswordMsg()
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{
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$error = false;
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$message = PMA\libraries\Message::success(__('The profile has been updated.'));
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if (($_REQUEST['nopass'] != '1')) {
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if (strlen($_REQUEST['pma_pw']) === 0 || strlen($_REQUEST['pma_pw2']) === 0) {
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$message = PMA\libraries\Message::error(__('The password is empty!'));
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$error = true;
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} elseif ($_REQUEST['pma_pw'] !== $_REQUEST['pma_pw2']) {
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$message = PMA\libraries\Message::error(
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__('The passwords aren\'t the same!')
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);
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$error = true;
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} elseif (strlen($_REQUEST['pma_pw']) > 256) {
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$message = PMA_Message::error(__('Password is too long!'));
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$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 $change_password_message Message to show
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*
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* @return void
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*/
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function PMA_changePassword($password, $message, $change_password_message)
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{
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global $auth_plugin;
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$hashing_function = PMA_changePassHashingFunction();
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$row = $GLOBALS['dbi']->fetchSingleRow('SELECT CURRENT_USER() as user');
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$curr_user = $row['user'];
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list($username, $hostname) = explode('@', $curr_user);
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$serverType = PMA\libraries\Util::getServerType();
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if (isset($_REQUEST['authentication_plugin'])
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&& ! empty($_REQUEST['authentication_plugin'])
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) {
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$orig_auth_plugin = $_REQUEST['authentication_plugin'];
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} else {
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$orig_auth_plugin = PMA_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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&& PMA_MYSQL_INT_VERSION >= 50706
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) {
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$sql_query = 'ALTER USER \'' . $username . '\'@\'' . $hostname
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. '\' IDENTIFIED WITH ' . $orig_auth_plugin . ' BY '
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. (($password == '') ? '\'\'' : '\'***\'');
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} else if (($serverType == 'MySQL'
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&& PMA_MYSQL_INT_VERSION >= 50507)
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|| ($serverType == 'MariaDB'
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&& PMA_MYSQL_INT_VERSION >= 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` = ' . $value . ';');
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}
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PMA_changePassUrlParamsAndSubmitQuery(
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$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($password);
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PMA_getChangePassMessage($change_password_message, $sql_query);
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PMA_changePassDisplayPage($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 $hashing_function
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*/
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function PMA_changePassHashingFunction()
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{
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if (PMA_isValid(
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$_REQUEST['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 $orig_auth_plugin Original Authentication Plugin
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*
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* @return void
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*/
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function PMA_changePassUrlParamsAndSubmitQuery(
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$username, $hostname, $password, $sql_query, $hashing_function, $orig_auth_plugin
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) {
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$err_url = 'user_password.php' . PMA_URL_getCommon();
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$serverType = PMA\libraries\Util::getServerType();
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if ($serverType == 'MySQL' && PMA_MYSQL_INT_VERSION >= 50706) {
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$local_query = 'ALTER USER \'' . $username . '\'@\'' . $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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} else if ($serverType == 'MariaDB'
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&& PMA_MYSQL_INT_VERSION >= 50200
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&& PMA_MYSQL_INT_VERSION < 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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$GLOBALS['dbi']->tryQuery('SET old_passwords = 0;');
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} else if ($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 = PMA_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` = '" . $username . "' AND Host = '"
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. $hostname . "';";
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} else {
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$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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PMA\libraries\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 $sql_query SQL query
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*
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* @return void
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*/
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function PMA_changePassDisplayPage($message, $sql_query)
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{
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echo '<h1>' , __('Change password') , '</h1>' , "\n\n";
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echo PMA\libraries\Util::getMessage(
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$message, $sql_query, 'success'
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);
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echo '<a href="index.php' , PMA_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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