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4222 changed files with 721797 additions and 14 deletions
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<?php
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/**
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* Cookie Authentication plugin for phpMyAdmin
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*/
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declare(strict_types=1);
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namespace PhpMyAdmin\Plugins\Auth;
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use PhpMyAdmin\Config;
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use PhpMyAdmin\Core;
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use PhpMyAdmin\LanguageManager;
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use PhpMyAdmin\Message;
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use PhpMyAdmin\Plugins\AuthenticationPlugin;
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use PhpMyAdmin\ResponseRenderer;
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use PhpMyAdmin\Server\Select;
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use PhpMyAdmin\Session;
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use PhpMyAdmin\Url;
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use PhpMyAdmin\Util;
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use PhpMyAdmin\Utils\SessionCache;
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use ReCaptcha;
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use Throwable;
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use function __;
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use function array_keys;
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use function base64_decode;
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use function base64_encode;
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use function count;
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use function defined;
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use function explode;
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use function function_exists;
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use function in_array;
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use function ini_get;
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use function intval;
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use function is_array;
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use function is_string;
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use function json_decode;
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use function json_encode;
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use function mb_strlen;
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use function mb_substr;
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use function preg_match;
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use function random_bytes;
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use function session_id;
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use function sodium_crypto_secretbox;
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use function sodium_crypto_secretbox_open;
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use function strlen;
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use function time;
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use const SODIUM_CRYPTO_SECRETBOX_KEYBYTES;
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use const SODIUM_CRYPTO_SECRETBOX_NONCEBYTES;
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/**
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* Handles the cookie authentication method
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*/
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class AuthenticationCookie extends AuthenticationPlugin
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{
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/**
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* Displays authentication form
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*
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* this function MUST exit/quit the application
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*
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* @global string $conn_error the last connection error
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*/
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public function showLoginForm(): bool
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{
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global $conn_error, $route;
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$response = ResponseRenderer::getInstance();
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/**
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* When sending login modal after session has expired, send the
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* new token explicitly with the response to update the token
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* in all the forms having a hidden token.
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*/
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$session_expired = isset($_REQUEST['check_timeout']) || isset($_REQUEST['session_timedout']);
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if (! $session_expired && $response->loginPage()) {
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if (defined('TESTSUITE')) {
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return true;
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}
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exit;
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}
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/**
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* When sending login modal after session has expired, send the
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* new token explicitly with the response to update the token
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* in all the forms having a hidden token.
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*/
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if ($session_expired) {
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$response->setRequestStatus(false);
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$response->addJSON('new_token', $_SESSION[' PMA_token ']);
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}
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/**
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* logged_in response parameter is used to check if the login,
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* using the modal was successful after session expiration.
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*/
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if (isset($_REQUEST['session_timedout'])) {
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$response->addJSON('logged_in', 0);
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}
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// No recall if blowfish secret is not configured as it would produce
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// garbage
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if ($GLOBALS['cfg']['LoginCookieRecall'] && ! empty($GLOBALS['cfg']['blowfish_secret'])) {
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$default_user = $this->user;
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$default_server = $GLOBALS['pma_auth_server'];
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$hasAutocomplete = true;
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} else {
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$default_user = '';
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$default_server = '';
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$hasAutocomplete = false;
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}
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// wrap the login form in a div which overlays the whole page.
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if ($session_expired) {
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$loginHeader = $this->template->render('login/header', [
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'add_class' => ' modal_form',
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'session_expired' => 1,
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]);
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} else {
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$loginHeader = $this->template->render('login/header', [
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'add_class' => '',
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'session_expired' => 0,
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]);
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}
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$errorMessages = '';
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// Show error message
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if (! empty($conn_error)) {
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$errorMessages = Message::rawError((string) $conn_error)->getDisplay();
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} elseif (isset($_GET['session_expired']) && intval($_GET['session_expired']) == 1) {
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$errorMessages = Message::rawError(
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__('Your session has expired. Please log in again.')
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)->getDisplay();
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}
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$languageManager = LanguageManager::getInstance();
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$availableLanguages = [];
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if (empty($GLOBALS['cfg']['Lang']) && $languageManager->hasChoice()) {
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$availableLanguages = $languageManager->sortedLanguages();
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}
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$serversOptions = '';
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$hasServers = count($GLOBALS['cfg']['Servers']) > 1;
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if ($hasServers) {
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$serversOptions = Select::render(false, false);
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}
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$_form_params = [];
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if (isset($route)) {
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$_form_params['route'] = $route;
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}
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if (strlen($GLOBALS['db'])) {
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$_form_params['db'] = $GLOBALS['db'];
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}
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if (strlen($GLOBALS['table'])) {
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$_form_params['table'] = $GLOBALS['table'];
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}
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$errors = '';
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if ($GLOBALS['errorHandler']->hasDisplayErrors()) {
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$errors = $GLOBALS['errorHandler']->getDispErrors();
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}
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// close the wrapping div tag, if the request is after session timeout
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if ($session_expired) {
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$loginFooter = $this->template->render('login/footer', ['session_expired' => 1]);
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} else {
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$loginFooter = $this->template->render('login/footer', ['session_expired' => 0]);
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}
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$configFooter = Config::renderFooter();
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echo $this->template->render('login/form', [
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'login_header' => $loginHeader,
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'is_demo' => $GLOBALS['cfg']['DBG']['demo'],
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'error_messages' => $errorMessages,
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'available_languages' => $availableLanguages,
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'is_session_expired' => $session_expired,
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'has_autocomplete' => $hasAutocomplete,
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'session_id' => session_id(),
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'is_arbitrary_server_allowed' => $GLOBALS['cfg']['AllowArbitraryServer'],
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'default_server' => $default_server,
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'default_user' => $default_user,
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'has_servers' => $hasServers,
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'server_options' => $serversOptions,
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'server' => $GLOBALS['server'],
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'lang' => $GLOBALS['lang'],
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'has_captcha' => ! empty($GLOBALS['cfg']['CaptchaApi'])
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&& ! empty($GLOBALS['cfg']['CaptchaRequestParam'])
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&& ! empty($GLOBALS['cfg']['CaptchaResponseParam'])
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&& ! empty($GLOBALS['cfg']['CaptchaLoginPrivateKey'])
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&& ! empty($GLOBALS['cfg']['CaptchaLoginPublicKey']),
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'use_captcha_checkbox' => ($GLOBALS['cfg']['CaptchaMethod'] ?? '') === 'checkbox',
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'captcha_api' => $GLOBALS['cfg']['CaptchaApi'],
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'captcha_req' => $GLOBALS['cfg']['CaptchaRequestParam'],
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'captcha_resp' => $GLOBALS['cfg']['CaptchaResponseParam'],
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'captcha_key' => $GLOBALS['cfg']['CaptchaLoginPublicKey'],
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'form_params' => $_form_params,
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'errors' => $errors,
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'login_footer' => $loginFooter,
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'config_footer' => $configFooter,
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]);
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if (! defined('TESTSUITE')) {
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exit;
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}
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return true;
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}
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/**
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* Gets authentication credentials
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*
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* this function DOES NOT check authentication - it just checks/provides
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* authentication credentials required to connect to the MySQL server
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* usually with $dbi->connect()
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*
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* it returns false if something is missing - which usually leads to
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* showLoginForm() which displays login form
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*
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* it returns true if all seems ok which usually leads to auth_set_user()
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*
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* it directly switches to showFailure() if user inactivity timeout is reached
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*/
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public function readCredentials(): bool
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{
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global $conn_error;
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// Initialization
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/**
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* @global $GLOBALS['pma_auth_server'] the user provided server to
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* connect to
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*/
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$GLOBALS['pma_auth_server'] = '';
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$this->user = $this->password = '';
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$GLOBALS['from_cookie'] = false;
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if (isset($_POST['pma_username']) && strlen($_POST['pma_username']) > 0) {
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// Verify Captcha if it is required.
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if (
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! empty($GLOBALS['cfg']['CaptchaApi'])
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&& ! empty($GLOBALS['cfg']['CaptchaRequestParam'])
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&& ! empty($GLOBALS['cfg']['CaptchaResponseParam'])
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&& ! empty($GLOBALS['cfg']['CaptchaLoginPrivateKey'])
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&& ! empty($GLOBALS['cfg']['CaptchaLoginPublicKey'])
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) {
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if (empty($_POST[$GLOBALS['cfg']['CaptchaResponseParam']])) {
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$conn_error = __('Missing reCAPTCHA verification, maybe it has been blocked by adblock?');
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return false;
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}
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$captchaSiteVerifyURL = $GLOBALS['cfg']['CaptchaSiteVerifyURL'] ?? '';
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$captchaSiteVerifyURL = empty($captchaSiteVerifyURL) ? null : $captchaSiteVerifyURL;
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if (function_exists('curl_init')) {
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$reCaptcha = new ReCaptcha\ReCaptcha(
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$GLOBALS['cfg']['CaptchaLoginPrivateKey'],
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new ReCaptcha\RequestMethod\CurlPost(null, $captchaSiteVerifyURL)
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);
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} elseif (ini_get('allow_url_fopen')) {
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$reCaptcha = new ReCaptcha\ReCaptcha(
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$GLOBALS['cfg']['CaptchaLoginPrivateKey'],
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new ReCaptcha\RequestMethod\Post($captchaSiteVerifyURL)
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);
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} else {
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$reCaptcha = new ReCaptcha\ReCaptcha(
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$GLOBALS['cfg']['CaptchaLoginPrivateKey'],
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new ReCaptcha\RequestMethod\SocketPost(null, $captchaSiteVerifyURL)
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);
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}
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// verify captcha status.
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$resp = $reCaptcha->verify(
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$_POST[$GLOBALS['cfg']['CaptchaResponseParam']],
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Core::getIp()
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);
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// Check if the captcha entered is valid, if not stop the login.
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if ($resp == null || ! $resp->isSuccess()) {
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$codes = $resp->getErrorCodes();
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if (in_array('invalid-json', $codes)) {
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$conn_error = __('Failed to connect to the reCAPTCHA service!');
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} else {
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$conn_error = __('Entered captcha is wrong, try again!');
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}
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return false;
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}
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}
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// The user just logged in
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$this->user = Core::sanitizeMySQLUser($_POST['pma_username']);
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$password = $_POST['pma_password'] ?? '';
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if (strlen($password) >= 1000) {
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$conn_error = __('Your password is too long. To prevent denial-of-service attacks, ' .
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'phpMyAdmin restricts passwords to less than 1000 characters.');
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return false;
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}
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$this->password = $password;
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if ($GLOBALS['cfg']['AllowArbitraryServer'] && isset($_REQUEST['pma_servername'])) {
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if ($GLOBALS['cfg']['ArbitraryServerRegexp']) {
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$parts = explode(' ', $_REQUEST['pma_servername']);
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if (count($parts) === 2) {
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$tmp_host = $parts[0];
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} else {
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$tmp_host = $_REQUEST['pma_servername'];
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}
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$match = preg_match($GLOBALS['cfg']['ArbitraryServerRegexp'], $tmp_host);
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if (! $match) {
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$conn_error = __('You are not allowed to log in to this MySQL server!');
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return false;
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}
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}
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$GLOBALS['pma_auth_server'] = Core::sanitizeMySQLHost($_REQUEST['pma_servername']);
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}
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/* Secure current session on login to avoid session fixation */
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Session::secure();
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return true;
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}
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// At the end, try to set the $this->user
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// and $this->password variables from cookies
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// check cookies
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$serverCookie = $GLOBALS['config']->getCookie('pmaUser-' . $GLOBALS['server']);
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if (empty($serverCookie)) {
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return false;
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}
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$value = $this->cookieDecrypt(
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$serverCookie,
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$this->getEncryptionSecret()
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);
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if ($value === null) {
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return false;
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}
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$this->user = $value;
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// user was never logged in since session start
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if (empty($_SESSION['browser_access_time'])) {
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return false;
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}
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// User inactive too long
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$last_access_time = time() - $GLOBALS['cfg']['LoginCookieValidity'];
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foreach ($_SESSION['browser_access_time'] as $key => $value) {
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if ($value >= $last_access_time) {
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continue;
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}
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unset($_SESSION['browser_access_time'][$key]);
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}
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// All sessions expired
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if (empty($_SESSION['browser_access_time'])) {
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SessionCache::remove('is_create_db_priv');
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SessionCache::remove('is_reload_priv');
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SessionCache::remove('db_to_create');
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SessionCache::remove('dbs_where_create_table_allowed');
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SessionCache::remove('dbs_to_test');
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SessionCache::remove('db_priv');
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SessionCache::remove('col_priv');
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SessionCache::remove('table_priv');
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SessionCache::remove('proc_priv');
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$this->showFailure('no-activity');
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if (! defined('TESTSUITE')) {
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exit;
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}
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return false;
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}
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// check password cookie
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$serverCookie = $GLOBALS['config']->getCookie('pmaAuth-' . $GLOBALS['server']);
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if (empty($serverCookie)) {
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return false;
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}
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$value = $this->cookieDecrypt(
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$serverCookie,
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$this->getSessionEncryptionSecret()
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);
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if ($value === null) {
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return false;
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}
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$auth_data = json_decode($value, true);
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if (! is_array($auth_data) || ! isset($auth_data['password'])) {
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return false;
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}
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$this->password = $auth_data['password'];
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if ($GLOBALS['cfg']['AllowArbitraryServer'] && ! empty($auth_data['server'])) {
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$GLOBALS['pma_auth_server'] = $auth_data['server'];
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}
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$GLOBALS['from_cookie'] = true;
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return true;
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}
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/**
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* Set the user and password after last checkings if required
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*
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* @return bool always true
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*/
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public function storeCredentials(): bool
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{
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global $cfg;
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if ($GLOBALS['cfg']['AllowArbitraryServer'] && ! empty($GLOBALS['pma_auth_server'])) {
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/* Allow to specify 'host port' */
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$parts = explode(' ', $GLOBALS['pma_auth_server']);
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if (count($parts) === 2) {
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$tmp_host = $parts[0];
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$tmp_port = $parts[1];
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} else {
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$tmp_host = $GLOBALS['pma_auth_server'];
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$tmp_port = '';
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}
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if ($cfg['Server']['host'] != $GLOBALS['pma_auth_server']) {
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$cfg['Server']['host'] = $tmp_host;
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if (! empty($tmp_port)) {
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$cfg['Server']['port'] = $tmp_port;
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}
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}
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unset($tmp_host, $tmp_port, $parts);
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}
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return parent::storeCredentials();
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}
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/**
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* Stores user credentials after successful login.
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*/
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public function rememberCredentials(): void
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{
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global $route;
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// Name and password cookies need to be refreshed each time
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// Duration = one month for username
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$this->storeUsernameCookie($this->user);
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// Duration = as configured
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// Do not store password cookie on password change as we will
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// set the cookie again after password has been changed
|
||||
if (! isset($_POST['change_pw'])) {
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$this->storePasswordCookie($this->password);
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}
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|
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// any parameters to pass?
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$url_params = [];
|
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if (isset($route)) {
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$url_params['route'] = $route;
|
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}
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||||
|
||||
if (strlen($GLOBALS['db']) > 0) {
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$url_params['db'] = $GLOBALS['db'];
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}
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||||
|
||||
if (strlen($GLOBALS['table']) > 0) {
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$url_params['table'] = $GLOBALS['table'];
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||||
}
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||||
|
||||
// user logged in successfully after session expiration
|
||||
if (isset($_REQUEST['session_timedout'])) {
|
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$response = ResponseRenderer::getInstance();
|
||||
$response->addJSON('logged_in', 1);
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$response->addJSON('success', 1);
|
||||
$response->addJSON('new_token', $_SESSION[' PMA_token ']);
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||||
|
||||
if (! defined('TESTSUITE')) {
|
||||
exit;
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
// Set server cookies if required (once per session) and, in this case,
|
||||
// force reload to ensure the client accepts cookies
|
||||
if ($GLOBALS['from_cookie']) {
|
||||
return;
|
||||
}
|
||||
|
||||
/**
|
||||
* Clear user cache.
|
||||
*/
|
||||
Util::clearUserCache();
|
||||
|
||||
ResponseRenderer::getInstance()->disable();
|
||||
|
||||
Core::sendHeaderLocation(
|
||||
'./index.php?route=/' . Url::getCommonRaw($url_params, '&'),
|
||||
true
|
||||
);
|
||||
|
||||
if (! defined('TESTSUITE')) {
|
||||
exit;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Stores username in a cookie.
|
||||
*
|
||||
* @param string $username User name
|
||||
*/
|
||||
public function storeUsernameCookie($username): void
|
||||
{
|
||||
// Name and password cookies need to be refreshed each time
|
||||
// Duration = one month for username
|
||||
$GLOBALS['config']->setCookie(
|
||||
'pmaUser-' . $GLOBALS['server'],
|
||||
$this->cookieEncrypt(
|
||||
$username,
|
||||
$this->getEncryptionSecret()
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Stores password in a cookie.
|
||||
*
|
||||
* @param string $password Password
|
||||
*/
|
||||
public function storePasswordCookie($password): void
|
||||
{
|
||||
$payload = ['password' => $password];
|
||||
if ($GLOBALS['cfg']['AllowArbitraryServer'] && ! empty($GLOBALS['pma_auth_server'])) {
|
||||
$payload['server'] = $GLOBALS['pma_auth_server'];
|
||||
}
|
||||
|
||||
// Duration = as configured
|
||||
$GLOBALS['config']->setCookie(
|
||||
'pmaAuth-' . $GLOBALS['server'],
|
||||
$this->cookieEncrypt(
|
||||
(string) json_encode($payload),
|
||||
$this->getSessionEncryptionSecret()
|
||||
),
|
||||
null,
|
||||
(int) $GLOBALS['cfg']['LoginCookieStore']
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* User is not allowed to login to MySQL -> authentication failed
|
||||
*
|
||||
* prepares error message and switches to showLoginForm() which display the error
|
||||
* and the login form
|
||||
*
|
||||
* this function MUST exit/quit the application,
|
||||
* currently done by call to showLoginForm()
|
||||
*
|
||||
* @param string $failure String describing why authentication has failed
|
||||
*/
|
||||
public function showFailure($failure): void
|
||||
{
|
||||
global $conn_error;
|
||||
|
||||
parent::showFailure($failure);
|
||||
|
||||
// Deletes password cookie and displays the login form
|
||||
$GLOBALS['config']->removeCookie('pmaAuth-' . $GLOBALS['server']);
|
||||
|
||||
$conn_error = $this->getErrorMessage($failure);
|
||||
|
||||
$response = ResponseRenderer::getInstance();
|
||||
|
||||
// needed for PHP-CGI (not need for FastCGI or mod-php)
|
||||
$response->header('Cache-Control: no-store, no-cache, must-revalidate');
|
||||
$response->header('Pragma: no-cache');
|
||||
|
||||
$this->showLoginForm();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns blowfish secret or generates one if needed.
|
||||
*/
|
||||
private function getEncryptionSecret(): string
|
||||
{
|
||||
/** @var mixed $key */
|
||||
$key = $GLOBALS['cfg']['blowfish_secret'] ?? null;
|
||||
if (! is_string($key)) {
|
||||
return $this->getSessionEncryptionSecret();
|
||||
}
|
||||
|
||||
$length = mb_strlen($key, '8bit');
|
||||
if ($length === SODIUM_CRYPTO_SECRETBOX_KEYBYTES) {
|
||||
return $key;
|
||||
}
|
||||
|
||||
if ($length > SODIUM_CRYPTO_SECRETBOX_KEYBYTES) {
|
||||
return mb_substr($key, 0, SODIUM_CRYPTO_SECRETBOX_KEYBYTES, '8bit');
|
||||
}
|
||||
|
||||
return $this->getSessionEncryptionSecret();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns blowfish secret or generates one if needed.
|
||||
*/
|
||||
private function getSessionEncryptionSecret(): string
|
||||
{
|
||||
/** @var mixed $key */
|
||||
$key = $_SESSION['encryption_key'] ?? null;
|
||||
if (is_string($key) && mb_strlen($key, '8bit') === SODIUM_CRYPTO_SECRETBOX_KEYBYTES) {
|
||||
return $key;
|
||||
}
|
||||
|
||||
$key = random_bytes(SODIUM_CRYPTO_SECRETBOX_KEYBYTES);
|
||||
$_SESSION['encryption_key'] = $key;
|
||||
|
||||
return $key;
|
||||
}
|
||||
|
||||
public function cookieEncrypt(string $data, string $secret): string
|
||||
{
|
||||
try {
|
||||
$nonce = random_bytes(SODIUM_CRYPTO_SECRETBOX_NONCEBYTES);
|
||||
$ciphertext = sodium_crypto_secretbox($data, $nonce, $secret);
|
||||
} catch (Throwable $throwable) {
|
||||
return '';
|
||||
}
|
||||
|
||||
return base64_encode($nonce . $ciphertext);
|
||||
}
|
||||
|
||||
public function cookieDecrypt(string $encryptedData, string $secret): ?string
|
||||
{
|
||||
$encrypted = base64_decode($encryptedData);
|
||||
$nonce = mb_substr($encrypted, 0, SODIUM_CRYPTO_SECRETBOX_NONCEBYTES, '8bit');
|
||||
$ciphertext = mb_substr($encrypted, SODIUM_CRYPTO_SECRETBOX_NONCEBYTES, null, '8bit');
|
||||
try {
|
||||
$decrypted = sodium_crypto_secretbox_open($ciphertext, $nonce, $secret);
|
||||
} catch (Throwable $throwable) {
|
||||
return null;
|
||||
}
|
||||
|
||||
if (! is_string($decrypted)) {
|
||||
return null;
|
||||
}
|
||||
|
||||
return $decrypted;
|
||||
}
|
||||
|
||||
/**
|
||||
* Callback when user changes password.
|
||||
*
|
||||
* @param string $password New password to set
|
||||
*/
|
||||
public function handlePasswordChange($password): void
|
||||
{
|
||||
$this->storePasswordCookie($password);
|
||||
}
|
||||
|
||||
/**
|
||||
* Perform logout
|
||||
*/
|
||||
public function logOut(): void
|
||||
{
|
||||
global $config;
|
||||
|
||||
// -> delete password cookie(s)
|
||||
if ($GLOBALS['cfg']['LoginCookieDeleteAll']) {
|
||||
foreach (array_keys($GLOBALS['cfg']['Servers']) as $key) {
|
||||
$config->removeCookie('pmaAuth-' . $key);
|
||||
if (! $config->issetCookie('pmaAuth-' . $key)) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$config->removeCookie('pmaAuth-' . $key);
|
||||
}
|
||||
} else {
|
||||
$cookieName = 'pmaAuth-' . $GLOBALS['server'];
|
||||
$config->removeCookie($cookieName);
|
||||
if ($config->issetCookie($cookieName)) {
|
||||
$config->removeCookie($cookieName);
|
||||
}
|
||||
}
|
||||
|
||||
parent::logOut();
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue