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Filename : AuthenticationConfig.php
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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * Config Authentication plugin for phpMyAdmin
 *
 * @package    PhpMyAdmin-Authentication
 * @subpackage Config
 */
namespace PMA\libraries\plugins\auth;

use PMA\libraries\plugins\AuthenticationPlugin;
use PMA;
use PMA\libraries\Response;
use PMA\libraries\URL;

/**
 * Handles the config authentication method
 *
 * @package PhpMyAdmin-Authentication
 */
class AuthenticationConfig extends AuthenticationPlugin
{
    /**
     * Displays authentication form
     *
     * @return boolean always true
     */
    public function auth()
    {
        $response = Response::getInstance();
        if ($response->isAjax()) {
            $response->setRequestStatus(false);
            // reload_flag removes the token parameter from the URL and reloads
            $response->addJSON('reload_flag', '1');
            if (defined('TESTSUITE')) {
                return true;
            } else {
                exit;
            }
        }

        return true;
    }

    /**
     * Gets advanced authentication settings
     *
     * @return boolean always true
     */
    public function authCheck()
    {
        if ($GLOBALS['token_provided'] && $GLOBALS['token_mismatch']) {
            return false;
        }

        return true;
    }

    /**
     * Set the user and password after last checkings if required
     *
     * @return boolean always true
     */
    public function authSetUser()
    {
        $this->setSessionAccessTime();

        return true;
    }

    /**
     * User is not allowed to login to MySQL -> authentication failed
     *
     * @return boolean   always true (no return indeed)
     */
    public function authFails()
    {
        $conn_error = $GLOBALS['dbi']->getError();
        if (!$conn_error) {
            $conn_error = __('Cannot connect: invalid settings.');
        }

        /* HTML header */
        $response = Response::getInstance();
        $response->getFooter()
            ->setMinimal();
        $header = $response->getHeader();
        $header->setBodyId('loginform');
        $header->setTitle(__('Access denied!'));
        $header->disableMenuAndConsole();
        echo '<br /><br />
    <center>
        <h1>';
        echo sprintf(__('Welcome to %s'), ' phpMyAdmin ');
        echo '</h1>
    </center>
    <br />
    <table cellpadding="0" cellspacing="3" style="margin: 0 auto" width="80%">
        <tr>
            <td>';
        if (isset($GLOBALS['allowDeny_forbidden'])
            && $GLOBALS['allowDeny_forbidden']
        ) {
            trigger_error(__('Access denied!'), E_USER_NOTICE);
        } else {
            // Check whether user has configured something
            if ($GLOBALS['PMA_Config']->source_mtime == 0) {
                echo '<p>' , sprintf(
                    __(
                        'You probably did not create a configuration file.'
                        . ' You might want to use the %1$ssetup script%2$s to'
                        . ' create one.'
                    ),
                    '<a href="setup/">',
                    '</a>'
                ) , '</p>' , "\n";
            } elseif (!isset($GLOBALS['errno'])
                || (isset($GLOBALS['errno']) && $GLOBALS['errno'] != 2002)
                && $GLOBALS['errno'] != 2003
            ) {
                // if we display the "Server not responding" error, do not confuse
                // users by telling them they have a settings problem
                // (note: it's true that they could have a badly typed host name,
                // but anyway the current message tells that the server
                //  rejected the connection, which is not really what happened)
                // 2002 is the error given by mysqli
                // 2003 is the error given by mysql
                trigger_error(
                    __(
                        'phpMyAdmin tried to connect to the MySQL server, and the'
                        . ' server rejected the connection. You should check the'
                        . ' host, username and password in your configuration and'
                        . ' make sure that they correspond to the information given'
                        . ' by the administrator of the MySQL server.'
                    ),
                    E_USER_WARNING
                );
            }
            echo PMA\libraries\Util::mysqlDie(
                $conn_error,
                '',
                true,
                '',
                false
            );
        }
        $GLOBALS['error_handler']->dispUserErrors();
        echo '</td>
        </tr>
        <tr>
            <td>' , "\n";
        echo '<a href="'
            , PMA\libraries\Util::getScriptNameForOption(
                $GLOBALS['cfg']['DefaultTabServer'],
                'server'
            )
            , URL::getCommon() , '" class="button disableAjax">'
            , __('Retry to connect')
            , '</a>' , "\n";
        echo '</td>
        </tr>' , "\n";
        if (count($GLOBALS['cfg']['Servers']) > 1) {
            // offer a chance to login to other servers if the current one failed
            include_once './libraries/select_server.lib.php';
            echo '<tr>' , "\n";
            echo ' <td>' , "\n";
            echo PMA_selectServer(true, true);
            echo ' </td>' , "\n";
            echo '</tr>' , "\n";
        }
        echo '</table>' , "\n";
        if (!defined('TESTSUITE')) {
            exit;
        }

        return true;
    }
}