....................................../////.===Shadow-Here===./////................................................ > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < ------------------------------------------------------------------------------------------------------------------- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////// RIFF¤ WEBPVP8 ˜ ðÑ *ôô>‘HŸK¥¤"§£±¨àð enü¹%½_F‘åè¿2ºQú³íªú`N¿­3ÿƒügµJžaÿ¯ÿ°~¼ÎùnúîÞÖô•òíôÁÉß®Sm¥Ü/ ‡ó˜f£Ùà<˜„xëJ¢Ù€SO3x<ªÔ©4¿+ç¶A`q@Ì“Úñè™ÍÿJÌ´ª-˜ÆtÊÛL]Ïq*‘Ý”ì#ŸÌÏãY]@ê`¿ /ªfkØB4·®£ó z—Üw¥Pxù–ÞLШKÇN¾AkÙTf½è'‰g gÆv›Øuh~ a˜Z— ïj*á¥t d£“uÒ ¨`K˜¹ßþ]b>˜]_ÏÔ6W—è2r4x•íÖ…"ƒÖNîä!¦å Ú}ýxGøÌ —@ ;ÆÚŠ=ɾ1ý8lªË¥ô ^yf®Œ¢u&2©nÙÇ›ñÂñŒ³ aPo['½»øFùà­+4ê“$!lövlüÞ=;N®3ð‚õ›DÉKòÞ>ÄÍ ¥ˆuߤ#ˆ$6ù™¥îŠ‡y’ÍB¼ çxÛ;X"WL£R÷͝*ó-¶Zu}º.s¸sšXqù–DþÿvªhüïwyŸ ¯é³lÀ:KCûÄ£Ëá\…­ ~—ýóî ¼ûûÜTÓüÇy…ŽÆvc»¾×U ñ¸žþоP÷¦ó:Ò¨¨5;Ð#&#ÖúñläÿÁœ GxÉ­/ñ‡áQðìYÉtÒwŽ¼GÔ´zàÒò ð*ëzƒ•4~H]Ø‹f ñÓÈñ`NåWçs'ÆÏW^ø¹!XžµmQ5ÃËoLœÎ: ÞËÍ¥J ù…î èo£ßPÎñ¶ž8.Œ]ʵ~5›ÙË-ù*8ÙÖß±~ ©¹rÓê‚j¶d¸{^Q'˜±Crß ÚH—#¥¥QlÀ×ëã‡DÜ«èî þ&Çæžî;ŽÏºò6ÒLÃXy&ZŒ'j‚¢Ù€IßÚù+–MGi‰*jE€‘JcÜ ÓÌ EÏÚj]o˜ Þr <¾U ûŪæÍ/šÝH¥˜b”¼ ÁñßX GP›ï2›4WŠÏà×£…íÓk†¦H·ÅíMh–*nó÷à]ÁjCº€b7<ب‹¨5車bp2:Á[UªM„QŒçiNMa#<5›áËó¸HýÊ"…×Éw¹¦ì2º–x<›»a±¸3Weü®FÝ⑱ö–î–³|LPÈ~çð~Çå‡|º kD¢µÏàÆAI %1À% ¹Ò – ”ϝS¦‰4&¶£°à Öý”û_Ò Áw°A«Å€?mÇÛgHÉ/8)á¾ÛìáöŽP í¨PŸNÙµº¦‡§Ùš"ÿ«>+ªÕ`Ê÷‡‚ß Õû˜þãÇ-PÍ.¾XV‘€ dÜ"þ4¹ ±Oú‘©t¥¦FªÄÃÄ•b‚znýu½—#cDs˜ÃiÑOˆñ×QO=*IAÊ,¶ŽZƒ;‡wøXè%EÐk:F±Ú” .Ѽ+Áu&Ç`."pÈÉw o&¿dE6‘’EqTuK@Ì¥ã™À(Êk(h‰,H}RÀIXÛš3µ1©_OqÚÒJAñ$ÊÙÜ;D3çŒ[þùœh¬Ã³™ö6ç†NY".Ú‰ï[ªŸŒ '²Ð öø_¨ÂÉ9u鶳ÒŠõTàîMØ#û¯gN‡bÙ놚X„ö …ÉeüÌ^J ‹€.œ$Æ)βÄeæW#óüßĺŸ€ ÀzwV 9oä»f4V*uB «Ë†¹ì¯žR霓æHXa=&“I4K;¯ç‹h×·"UŠ~<•â•ªVêª&ÍSÃÆÅ?ÔqÎ*mTM ˜›µwêd#[C¡©§‘D<©àb†–ÁœøvH/,í:¯( ²£|4-„Æövv„Yͼ™^Á$ˆ„¢Û[6yB.åH*V¨æ?$=˜Ñ€•î¦ñ·­(VlŸ‘ nÀt8W÷´Bûba?q9ú¶Xƒl«ÿ\ù¶’þòUÐj/õ¢Ìµ³g$ƒÎR!¸»|Oߍë’BhîÚÑ¢ñåŒJ„®„£2Ð3•ô02Nt…!£Í]Ïc½Qÿ?ˆ<&ÃA¾Ú,JˆijÌ#5yz„‰Î|ÊŽ5QÏ:‹ÐaóVÔxW—CpeÏzÐïíçôÿÅ_[hãsÐ_/ŽTÝ?BîˆííV$<¿i>²F¬_Eß¿ †bÊŒº­ÿ®Z H“C}”¬,Mp ý/Bá£w>˜YV°aƒúh+cŠ- r/[%|üUMHäQ°X»|û/@|°¥Ð !BÔ Ç¢Ä©š+Õì D«7ìN¶ŽðÔ " ƶ’ÖçtA‰Û×}{tþz­¾GÍ›k¹OEJR$ Â׃ «ëÁ"oÉôž$oUK(Ä)Ãz³Ê-‹êN[Ò3Œñbï8P 4ƒ×q¢bo|?<ÛX¬òÄÍ°L–±›(™ûG?ýË©ÚÄ–ÂDØÐ_Ç¡ô ¾–ÄÏø ×e8Ë©$ÄF¹Å‹ì[©óìl:F¾f´‹‹Xì²ï®\¬ôùƒ ÿat¥óèÒùHß0äe‚;ü×h:ÆWðHž=Ã8骣"kœ'Y?³}Tûè€>?0l›e1Lòñ„aæKÆw…hÖŠùW…ÈÆÄ0ši·›[pcwËþñiêíY/~-Á5˜!¿†A›™Mÿþ(±“t@â“ö2­´TG5yé]çå僳 .·ÍïçÝ7UÚ±Ð/Nè»,_Ï ùdj7\ï Wì4›„»c¸àešg#ÒÊ⥭áØo5‘?ÌdÝô¯ ¹kzsƒ=´#ëÉK›Ø´±-¥eW?‡çßtòTã…$Ý+qÿ±ƒ÷_3Ô¥í÷:æ–ž<·Ö‡‰Å¢ š‡%Ô—utÌÈìðžgÖÀz²À—ï÷Óîäõ{K'´È÷³yaÏÁjƒô}ž§®æÊydÕÈë5¯èˆõvÕ©ã*çD„ “z„Ó‡^^xÂ3M§A´JG‚öï 3W'ˆ.OvXè¡ÊÕª?5º7†˜(˜Ç¶#çê’¶!ÌdZK§æ 0fãaN]òY³RV ™î$®K2R¨`W!1Ôó\;Ý ýB%qæK•&ÓÈe9È0êI±žeŸß -ú@žQr¦ ö4»M¼Áè¹µmw 9 EÆE_°2ó„ŸXKWÁ×Hóì^´²GѝF©óäR†¦‰ç"V»eØ<3ùd3ÿÚ¤Žú“Gi" —‘_ÙËÎ~Üö¯¥½Î»üŸEÚŽåmÞþí ;ÞólËΦMzA"Âf(´òá;Éï(/7½ûñÌ­cïÕçлþÝz¾-ÍvÑ“pH­–ðÓj$¸Äû¤‚‘ãUBË-n“2åPkS5&‹Â|+g^œ®Ì͆d!OïäîU«c;{Û!ÅŽ«ëZ9Ókóˆ]¯ƒ›né `ÇÒ+tÆš (ØKá¾—=3œ®•vuMñg²\ï Ec€ 05±d™‡×iÇ×›UúvÌ¢£Èþ¡ÕØô¶ßÎA"ß±#Ö²ˆÊŸ¦*Ä~ij|àø.-¼'»Ú¥£h ofº¦‡VsR=N½„Î v˜Z*SÌ{=jÑB‹tê…;’HžH¯8–îDù8ñ¢|Q•bÛçš–‹m³“ê¨ åÏ^m¬Žãþ©ïêO‡½6] µÆ„Ooòü ²x}N¦Ë3ïé¿»€›HA˜m%çÞ/¿í7Fø“‹léUk)É°Œµ8Q8›:ÀŠeT*šõ~ôڝG6 ¢}`ùH­–”¡k ‰P1>š†®9z11!X wKfmÁ¦xÑ,N1Q”–æB¶M…ÒÃv6SMˆhU¬ÊPŽï‘öj=·CŒ¯u¹ƒVIЃsx4’ömÛýc塶7ßŠß 57^\wÒÐÆ k§h,Œý î«q^R½3]J¸ÇðN ‚çU¬ôº^Áì} ³f©Õœ§ˆã:FÄÈ‚é(€™?àýÓüè1Gô£¼éj‚OÅñ  #>×—ßtà 0G¥Åa뀐kßhc™À_ÉñÞ#±)GD" YîäË-ÿÙ̪ ¹™a¯´¢E\ÝÒö‚;™„ë]_ p8‰o¡ñ+^÷ 3‘'dT4œŽ ðVë½° :¬víÑ«£tßÚS-3¶“þ2 †üüʨòrš¹M{É_¤`Û¨0ìjœøJ‡:÷ÃáZ˜†@GP&œÑDGÏs¡þ¦þDGú‘1Yá9Ôþ¼ ûø…§÷8&–ÜÑnÄ_m®^üÆ`;ÉVÁJ£?â€-ßê}suÍ2sõA NÌúA磸‘îÿÚ»ƒìö·á¿±tÑÐ"Tÿü˜[@/äj¬€uüªìù¥Ý˜á8Ý´sõj 8@rˆð äþZÇD®ÿUÏ2ùôõrBzÆÏÞž>Ì™xœ“ wiÎ×7_… ¸ \#€MɁV¶¥üÕÿPÔ9Z‡ø§É8#H:ƒ5ÀÝå9ÍIŒ5åKÙŠ÷qÄ>1AÈøžj"µÂд/ªnÀ qªã}"iŸBå˜ÓÛŽ¦…&ݧ;G@—³b¯“•"´4í¨ôM¨åñC‹ïùÉó¯ÓsSH2Ý@ßáM‡ˆKÀªÛUeø/4\gnm¥‹ŸŒ qÄ b9ÞwÒNÏ_4Ég³ú=܆‚´ •â¥õeíþkjz>éÚyU«Íӝ݃6"8/ø{=Ô¢»G¥ äUw°W«,ô—¿ãㆅү¢³xŠUû™yŒ (øSópÐ 9\åTâ»—*oG$/×ÍT†Y¿1¤Þ¢_‡ ¼ „±ÍçèSaÓ 3ÛMÁBkxs‰’R/¡¤ˆÙçª(*õ„üXÌ´ƒ E§´¬EF"Ù”R/ÐNyÆÂ^°?™6¡œïJ·±$§?º>ÖüœcNÌù¯G ‹ñ2ŠBB„^·úìaz¨k:#¨Æ¨8LÎõލ£^§S&cŒÐU€ü(‡F±Š¼&P>8ÙÁ ‰ p5?0ÊƃZl¸aô š¼¡}gÿ¶zÆC²¹¬ÎÖG*HB¡O<º2#ñŒAƒ–¡B˜´É$¥›É:FÀÔx¾u?XÜÏÓvN©RS{2ʈãk9rmP¼Qq̳ è¼ÐFׄ^¡Öì fE“F4A…!ì/…¦Lƒ… … $%´¾yã@CI¬ á—3PþBÏNÿ<ý°4Ü ËÃ#ØÍ~âW«rEñw‹eùMMHß²`¬Öó½íf³:‹k˜¯÷}Z!ã¿<¥,\#öµÀ¯aÒNÆIé,Ћ–lŽ#Àæ9ÀÒS·I’½-Ïp Äz¤Š Â* ­íÄ9­< h>׍3ZkËU¹§˜ŒŠ±f­’¤º³Q ÏB?‹#µíÃ¥®@(Gs«†vI¥Mµ‹Á©e~2ú³ÁP4ìÕi‚²Ê^ö@-DþÓàlÜOÍ]n"µã:žpsŽ¢:! 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Directory :  /usr/share/phpmyadmin/libraries/classes/Plugins/Auth/

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Current File : /usr/share/phpmyadmin/libraries/classes/Plugins/Auth/AuthenticationCookie.php
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * Cookie Authentication plugin for phpMyAdmin
 *
 * @package    PhpMyAdmin-Authentication
 * @subpackage Cookie
 */
declare(strict_types=1);

namespace PhpMyAdmin\Plugins\Auth;

use PhpMyAdmin\Config;
use PhpMyAdmin\Core;
use PhpMyAdmin\LanguageManager;
use PhpMyAdmin\Message;
use PhpMyAdmin\Plugins\AuthenticationPlugin;
use PhpMyAdmin\Response;
use PhpMyAdmin\Server\Select;
use PhpMyAdmin\Session;
use PhpMyAdmin\Template;
use PhpMyAdmin\Url;
use PhpMyAdmin\Util;
use phpseclib\Crypt;
use phpseclib\Crypt\Random;
use ReCaptcha;

/**
 * Remember where to redirect the user
 * in case of an expired session.
 */
if (! empty($_REQUEST['target'])) {
    $GLOBALS['target'] = $_REQUEST['target'];
} elseif (Core::getenv('SCRIPT_NAME')) {
    $GLOBALS['target'] = basename(Core::getenv('SCRIPT_NAME'));
}

/**
 * Handles the cookie authentication method
 *
 * @package PhpMyAdmin-Authentication
 */
class AuthenticationCookie extends AuthenticationPlugin
{
    /**
     * IV for encryption
     */
    private $_cookie_iv = null;

    /**
     * Whether to use OpenSSL directly
     */
    private $_use_openssl;

    /**
     * Constructor
     */
    public function __construct()
    {
        parent::__construct();
        $this->_use_openssl = ! class_exists(Random::class);
    }

    /**
     * Forces (not)using of openSSL
     *
     * @param boolean $use The flag
     *
     * @return void
     */
    public function setUseOpenSSL($use)
    {
        $this->_use_openssl = $use;
    }

    /**
     * Displays authentication form
     *
     * this function MUST exit/quit the application
     *
     * @global string $conn_error the last connection error
     *
     * @return boolean|void
     */
    public function showLoginForm()
    {
        global $conn_error;

        $response = Response::getInstance();

        // When sending login modal after session has expired, send the new token explicitly with the response to update the token in all the forms having a hidden token.
        $session_expired = isset($_REQUEST['check_timeout']) || isset($_REQUEST['session_timedout']);
        if (! $session_expired && $response->loginPage()) {
            if (defined('TESTSUITE')) {
                return true;
            } else {
                exit;
            }
        }

        // When sending login modal after session has expired, send the new token explicitly with the response to update the token in all the forms having a hidden token.
        if ($session_expired) {
            $response->setRequestStatus(false);
            $response->addJSON(
                'new_token',
                $_SESSION[' PMA_token ']
            );
        }

        // logged_in response parameter is used to check if the login, using the modal was successful after session expiration
        if (isset($_REQUEST['session_timedout'])) {
            $response->addJSON(
                'logged_in',
                0
            );
        }

        // No recall if blowfish secret is not configured as it would produce
        // garbage
        if ($GLOBALS['cfg']['LoginCookieRecall']
            && ! empty($GLOBALS['cfg']['blowfish_secret'])
        ) {
            $default_user   = $this->user;
            $default_server = $GLOBALS['pma_auth_server'];
            $autocomplete   = '';
        } else {
            $default_user   = '';
            $default_server = '';
            // skip the IE autocomplete feature.
            $autocomplete   = ' autocomplete="off"';
        }

        // wrap the login form in a div which overlays the whole page.
        if ($session_expired) {
            echo $this->template->render('login/header', [
                'theme' => $GLOBALS['PMA_Theme'],
                'add_class' => ' modal_form',
                'session_expired' => 1,
            ]);
        } else {
            echo $this->template->render('login/header', [
                'theme' => $GLOBALS['PMA_Theme'],
                'add_class' => '',
                'session_expired' => 0,
            ]);
        }

        if ($GLOBALS['cfg']['DBG']['demo']) {
            echo '<fieldset>';
            echo '<legend>' , __('phpMyAdmin Demo Server') , '</legend>';
            printf(
                __(
                    'You are using the demo server. You can do anything here, but '
                    . 'please do not change root, debian-sys-maint and pma users. '
                    . 'More information is available at %s.'
                ),
                '<a href="url.php?url=https://demo.phpmyadmin.net/" target="_blank" rel="noopener noreferrer">demo.phpmyadmin.net</a>'
            );
            echo '</fieldset>';
        }

        // Show error message
        if (! empty($conn_error)) {
            Message::rawError((string) $conn_error)->display();
        } elseif (isset($_GET['session_expired'])
            && intval($_GET['session_expired']) == 1
        ) {
            Message::rawError(
                __('Your session has expired. Please log in again.')
            )->display();
        }

        // Displays the languages form
        $language_manager = LanguageManager::getInstance();
        if (empty($GLOBALS['cfg']['Lang']) && $language_manager->hasChoice()) {
            echo "<div class='hide js-show'>";
            // use fieldset, don't show doc link
            echo $language_manager->getSelectorDisplay(new Template(), true, false);
            echo '</div>';
        }
        echo '
    <br>
    <!-- Login form -->
    <form method="post" id="login_form" action="index.php" name="login_form"' , $autocomplete ,
            ' class="' . ($session_expired ? "" : "disableAjax hide ") . 'login js-show">
        <fieldset>
        <legend>';
        echo '<input type="hidden" name="set_session" value="', htmlspecialchars(session_id()), '">';

        // Add a hidden element session_timedout which is used to check if the user requested login after session expiration
        if ($session_expired) {
            echo '<input type="hidden" name="session_timedout" value="1">';
        }
        echo __('Log in');
        echo Util::showDocu('index');
        echo '</legend>';
        if ($GLOBALS['cfg']['AllowArbitraryServer']) {
            echo '
            <div class="item">
                <label for="input_servername" title="';
            echo __(
                'You can enter hostname/IP address and port separated by space.'
            );
            echo '">';
            echo __('Server:');
            echo '</label>
                <input type="text" name="pma_servername" id="input_servername"';
            echo ' value="';
            echo htmlspecialchars($default_server);
            echo '" size="24" class="textfield" title="';
            echo __(
                'You can enter hostname/IP address and port separated by space.'
            ); echo '">
            </div>';
        }
            echo '<div class="item">
                <label for="input_username">' , __('Username:') , '</label>
                <input type="text" name="pma_username" id="input_username" '
                , 'value="' , htmlspecialchars($default_user) , '" size="24"'
                , ' class="textfield">
            </div>
            <div class="item">
                <label for="input_password">' , __('Password:') , '</label>
                <input type="password" name="pma_password" id="input_password"'
                , ' value="" size="24" class="textfield">
            </div>';
        if (count($GLOBALS['cfg']['Servers']) > 1) {
            echo '<div class="item">
                <label for="select_server">' . __('Server Choice:') . '</label>
                <select name="server" id="select_server"';
            if ($GLOBALS['cfg']['AllowArbitraryServer']) {
                echo ' onchange="document.forms[\'login_form\'].'
                    , 'elements[\'pma_servername\'].value = \'\'" ';
            }
            echo '>';
            echo Select::render(false, false);
            echo '</select></div>';
        } else {
            echo '    <input type="hidden" name="server" value="'
                , $GLOBALS['server'] , '">';
        } // end if (server choice)

        echo '</fieldset><fieldset class="tblFooters">';

        // binds input field with invisible reCaptcha if enabled
        if (empty($GLOBALS['cfg']['CaptchaLoginPrivateKey'])
            && empty($GLOBALS['cfg']['CaptchaLoginPublicKey'])
        ) {
            echo '<input class="btn btn-primary" value="' , __('Go') , '" type="submit" id="input_go">';
        } else {
            echo '<script src="https://www.google.com/recaptcha/api.js?hl='
            , $GLOBALS['lang'] , '" async defer></script>';
            if (isset($GLOBALS['cfg']['CaptchaMethod']) && $GLOBALS['cfg']['CaptchaMethod'] === 'checkbox') {
                echo '<div class="g-recaptcha" data-sitekey="'
                    . htmlspecialchars($GLOBALS['cfg']['CaptchaLoginPublicKey']) . '"></div>';
                echo '<input class="btn btn-primary" value="' , __('Go') , '" type="submit" id="input_go">';
            } else {
                echo '<input class="btn btn-primary g-recaptcha" data-sitekey="'
                , htmlspecialchars($GLOBALS['cfg']['CaptchaLoginPublicKey']),'"'
                    . ' data-callback="Functions_recaptchaCallback" value="' , __('Go') , '" type="submit" id="input_go">';
            }
        }
        $_form_params = [];
        if (! empty($GLOBALS['target'])) {
            $_form_params['target'] = $GLOBALS['target'];
        }
        if (strlen($GLOBALS['db'])) {
            $_form_params['db'] = $GLOBALS['db'];
        }
        if (strlen($GLOBALS['table'])) {
            $_form_params['table'] = $GLOBALS['table'];
        }
        // do not generate a "server" hidden field as we want the "server"
        // drop-down to have priority
        echo Url::getHiddenInputs($_form_params, '', 0, 'server');
        echo '</fieldset>
    </form>';

        if ($GLOBALS['error_handler']->hasDisplayErrors()) {
            echo '<div id="pma_errors">';
            $GLOBALS['error_handler']->dispErrors();
            echo '</div>';
        }

        // close the wrapping div tag, if the request is after session timeout
        if ($session_expired) {
            echo $this->template->render('login/footer', ['session_expired' => 1]);
        } else {
            echo $this->template->render('login/footer', ['session_expired' => 0]);
        }

        echo Config::renderFooter();

        if (! defined('TESTSUITE')) {
            exit;
        } else {
            return true;
        }
    }

    /**
     * Gets authentication credentials
     *
     * this function DOES NOT check authentication - it just checks/provides
     * authentication credentials required to connect to the MySQL server
     * usually with $GLOBALS['dbi']->connect()
     *
     * it returns false if something is missing - which usually leads to
     * showLoginForm() which displays login form
     *
     * it returns true if all seems ok which usually leads to auth_set_user()
     *
     * it directly switches to showFailure() if user inactivity timeout is reached
     *
     * @return boolean   whether we get authentication settings or not
     */
    public function readCredentials()
    {
        global $conn_error;

        // Initialization
        /**
         * @global $GLOBALS['pma_auth_server'] the user provided server to
         * connect to
         */
        $GLOBALS['pma_auth_server'] = '';

        $this->user = $this->password = '';
        $GLOBALS['from_cookie'] = false;

        if (isset($_POST['pma_username']) && strlen($_POST['pma_username']) > 0) {
            // Verify Captcha if it is required.
            if (! empty($GLOBALS['cfg']['CaptchaLoginPrivateKey'])
                && ! empty($GLOBALS['cfg']['CaptchaLoginPublicKey'])
            ) {
                if (! empty($_POST["g-recaptcha-response"])) {
                    if (function_exists('curl_init')) {
                        $reCaptcha = new ReCaptcha\ReCaptcha(
                            $GLOBALS['cfg']['CaptchaLoginPrivateKey'],
                            new ReCaptcha\RequestMethod\CurlPost()
                        );
                    } elseif (ini_get('allow_url_fopen')) {
                        $reCaptcha = new ReCaptcha\ReCaptcha(
                            $GLOBALS['cfg']['CaptchaLoginPrivateKey'],
                            new ReCaptcha\RequestMethod\Post()
                        );
                    } else {
                        $reCaptcha = new ReCaptcha\ReCaptcha(
                            $GLOBALS['cfg']['CaptchaLoginPrivateKey'],
                            new ReCaptcha\RequestMethod\SocketPost()
                        );
                    }

                    // verify captcha status.
                    $resp = $reCaptcha->verify(
                        $_POST["g-recaptcha-response"],
                        Core::getIp()
                    );

                    // Check if the captcha entered is valid, if not stop the login.
                    if ($resp == null || ! $resp->isSuccess()) {
                        $codes = $resp->getErrorCodes();

                        if (in_array('invalid-json', $codes)) {
                            $conn_error = __('Failed to connect to the reCAPTCHA service!');
                        } else {
                            $conn_error = __('Entered captcha is wrong, try again!');
                        }
                        return false;
                    }
                } else {
                    $conn_error = __('Missing reCAPTCHA verification, maybe it has been blocked by adblock?');
                    return false;
                }
            }

            // The user just logged in
            $this->user = Core::sanitizeMySQLUser($_POST['pma_username']);
            $this->password = isset($_POST['pma_password']) ? $_POST['pma_password'] : '';
            if ($GLOBALS['cfg']['AllowArbitraryServer']
                && isset($_REQUEST['pma_servername'])
            ) {
                if ($GLOBALS['cfg']['ArbitraryServerRegexp']) {
                    $parts = explode(' ', $_REQUEST['pma_servername']);
                    if (count($parts) === 2) {
                        $tmp_host = $parts[0];
                    } else {
                        $tmp_host = $_REQUEST['pma_servername'];
                    }

                    $match = preg_match(
                        $GLOBALS['cfg']['ArbitraryServerRegexp'],
                        $tmp_host
                    );
                    if (! $match) {
                        $conn_error = __(
                            'You are not allowed to log in to this MySQL server!'
                        );
                        return false;
                    }
                }
                $GLOBALS['pma_auth_server'] = Core::sanitizeMySQLHost($_REQUEST['pma_servername']);
            }
            /* Secure current session on login to avoid session fixation */
            Session::secure();
            return true;
        }

        // At the end, try to set the $this->user
        // and $this->password variables from cookies

        // check cookies
        $serverCookie = $GLOBALS['PMA_Config']->getCookie('pmaUser-' . $GLOBALS['server']);
        if (empty($serverCookie)) {
            return false;
        }

        $value = $this->cookieDecrypt(
            $serverCookie,
            $this->_getEncryptionSecret()
        );

        if ($value === false) {
            return false;
        }

        $this->user = $value;
        // user was never logged in since session start
        if (empty($_SESSION['browser_access_time'])) {
            return false;
        }

        // User inactive too long
        $last_access_time = time() - $GLOBALS['cfg']['LoginCookieValidity'];
        foreach ($_SESSION['browser_access_time'] as $key => $value) {
            if ($value < $last_access_time) {
                unset($_SESSION['browser_access_time'][$key]);
            }
        }
        // All sessions expired
        if (empty($_SESSION['browser_access_time'])) {
            Util::cacheUnset('is_create_db_priv');
            Util::cacheUnset('is_reload_priv');
            Util::cacheUnset('db_to_create');
            Util::cacheUnset('dbs_where_create_table_allowed');
            Util::cacheUnset('dbs_to_test');
            Util::cacheUnset('db_priv');
            Util::cacheUnset('col_priv');
            Util::cacheUnset('table_priv');
            Util::cacheUnset('proc_priv');

            $this->showFailure('no-activity');
            if (! defined('TESTSUITE')) {
                exit;
            } else {
                return false;
            }
        }

        // check password cookie
        $serverCookie = $GLOBALS['PMA_Config']->getCookie('pmaAuth-' . $GLOBALS['server']);

        if (empty($serverCookie)) {
            return false;
        }
        $value = $this->cookieDecrypt(
            $serverCookie,
            $this->_getSessionEncryptionSecret()
        );
        if ($value === false) {
            return false;
        }

        $auth_data = json_decode($value, true);

        if (! is_array($auth_data) || ! isset($auth_data['password'])) {
            return false;
        }
        $this->password = $auth_data['password'];
        if ($GLOBALS['cfg']['AllowArbitraryServer'] && ! empty($auth_data['server'])) {
            $GLOBALS['pma_auth_server'] = $auth_data['server'];
        }

        $GLOBALS['from_cookie'] = true;

        return true;
    }

    /**
     * Set the user and password after last checkings if required
     *
     * @return boolean always true
     */
    public function storeCredentials()
    {
        global $cfg;

        if ($GLOBALS['cfg']['AllowArbitraryServer']
            && ! empty($GLOBALS['pma_auth_server'])
        ) {
            /* Allow to specify 'host port' */
            $parts = explode(' ', $GLOBALS['pma_auth_server']);
            if (count($parts) === 2) {
                $tmp_host = $parts[0];
                $tmp_port = $parts[1];
            } else {
                $tmp_host = $GLOBALS['pma_auth_server'];
                $tmp_port = '';
            }
            if ($cfg['Server']['host'] != $GLOBALS['pma_auth_server']) {
                $cfg['Server']['host'] = $tmp_host;
                if (! empty($tmp_port)) {
                    $cfg['Server']['port'] = $tmp_port;
                }
            }
            unset($tmp_host, $tmp_port, $parts);
        }

        return parent::storeCredentials();
    }

    /**
     * Stores user credentials after successful login.
     *
     * @return void|bool
     */
    public function rememberCredentials()
    {
        // Name and password cookies need to be refreshed each time
        // Duration = one month for username

        $this->storeUsernameCookie($this->user);

        // Duration = as configured
        // Do not store password cookie on password change as we will
        // set the cookie again after password has been changed
        if (! isset($_POST['change_pw'])) {
            $this->storePasswordCookie($this->password);
        }
        // URL where to go:
        $redirect_url = './index.php';

        // any parameters to pass?
        $url_params = [];
        if (strlen($GLOBALS['db']) > 0) {
            $url_params['db'] = $GLOBALS['db'];
        }
        if (strlen($GLOBALS['table']) > 0) {
            $url_params['table'] = $GLOBALS['table'];
        }
        // any target to pass?
        if (! empty($GLOBALS['target'])
            && $GLOBALS['target'] != 'index.php'
        ) {
            $url_params['target'] = $GLOBALS['target'];
        }

        // user logged in successfully after session expiration
        if (isset($_REQUEST['session_timedout'])) {
            $response = Response::getInstance();
            $response->addJSON(
                'logged_in',
                1
            );
            $response->addJSON(
                'success',
                1
            );
            $response->addJSON(
                'new_token',
                $_SESSION[' PMA_token ']
            );

            if (! defined('TESTSUITE')) {
                exit;
            } else {
                return false;
            }
        }
        // Set server cookies if required (once per session) and, in this case,
        // force reload to ensure the client accepts cookies
        if (! $GLOBALS['from_cookie']) {

            /**
             * Clear user cache.
             */
            Util::clearUserCache();

            Response::getInstance()
                ->disable();

            Core::sendHeaderLocation(
                $redirect_url . Url::getCommonRaw($url_params),
                true
            );
            if (! defined('TESTSUITE')) {
                exit;
            } else {
                return false;
            }
        } // end if

        return true;
    }

    /**
     * Stores username in a cookie.
     *
     * @param string $username User name
     *
     * @return void
     */
    public function storeUsernameCookie($username)
    {
        // Name and password cookies need to be refreshed each time
        // Duration = one month for username
        $GLOBALS['PMA_Config']->setCookie(
            'pmaUser-' . $GLOBALS['server'],
            $this->cookieEncrypt(
                $username,
                $this->_getEncryptionSecret()
            )
        );
    }

    /**
     * Stores password in a cookie.
     *
     * @param string $password Password
     *
     * @return void
     */
    public function storePasswordCookie($password)
    {
        $payload = ['password' => $password];
        if ($GLOBALS['cfg']['AllowArbitraryServer'] && ! empty($GLOBALS['pma_auth_server'])) {
            $payload['server'] = $GLOBALS['pma_auth_server'];
        }
        // Duration = as configured
        $GLOBALS['PMA_Config']->setCookie(
            'pmaAuth-' . $GLOBALS['server'],
            $this->cookieEncrypt(
                json_encode($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 $failure String describing why authentication has failed
     *
     * @return void
     */
    public function showFailure($failure)
    {
        global $conn_error;

        parent::showFailure($failure);

        // Deletes password cookie and displays the login form
        $GLOBALS['PMA_Config']->removeCookie('pmaAuth-' . $GLOBALS['server']);

        $conn_error = $this->getErrorMessage($failure);

        $response = Response::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.
     *
     * @return string
     */
    private function _getEncryptionSecret()
    {
        if (empty($GLOBALS['cfg']['blowfish_secret'])) {
            return $this->_getSessionEncryptionSecret();
        }

        return $GLOBALS['cfg']['blowfish_secret'];
    }

    /**
     * Returns blowfish secret or generates one if needed.
     *
     * @return string
     */
    private function _getSessionEncryptionSecret()
    {
        if (empty($_SESSION['encryption_key'])) {
            if ($this->_use_openssl) {
                $_SESSION['encryption_key'] = openssl_random_pseudo_bytes(32);
            } else {
                $_SESSION['encryption_key'] = Crypt\Random::string(32);
            }
        }
        return $_SESSION['encryption_key'];
    }

    /**
     * Concatenates secret in order to make it 16 bytes log
     *
     * This doesn't add any security, just ensures the secret
     * is long enough by copying it.
     *
     * @param string $secret Original secret
     *
     * @return string
     */
    public function enlargeSecret($secret)
    {
        while (strlen($secret) < 16) {
            $secret .= $secret;
        }
        return substr($secret, 0, 16);
    }

    /**
     * Derives MAC secret from encryption secret.
     *
     * @param string $secret the secret
     *
     * @return string the MAC secret
     */
    public function getMACSecret($secret)
    {
        // Grab first part, up to 16 chars
        // The MAC and AES secrets can overlap if original secret is short
        $length = strlen($secret);
        if ($length > 16) {
            return substr($secret, 0, 16);
        }
        return $this->enlargeSecret(
            $length == 1 ? $secret : substr($secret, 0, -1)
        );
    }

    /**
     * Derives AES secret from encryption secret.
     *
     * @param string $secret the secret
     *
     * @return string the AES secret
     */
    public function getAESSecret($secret)
    {
        // Grab second part, up to 16 chars
        // The MAC and AES secrets can overlap if original secret is short
        $length = strlen($secret);
        if ($length > 16) {
            return substr($secret, -16);
        }
        return $this->enlargeSecret(
            $length == 1 ? $secret : substr($secret, 1)
        );
    }

    /**
     * Cleans any SSL errors
     *
     * This can happen from corrupted cookies, by invalid encryption
     * parameters used in older phpMyAdmin versions or by wrong openSSL
     * configuration.
     *
     * In neither case the error is useful to user, but we need to clear
     * the error buffer as otherwise the errors would pop up later, for
     * example during MySQL SSL setup.
     *
     * @return void
     */
    public function cleanSSLErrors()
    {
        if (function_exists('openssl_error_string')) {
            do {
                $hasSslErrors = openssl_error_string();
            } while ($hasSslErrors !== false);
        }
    }

    /**
     * Encryption using openssl's AES or phpseclib's AES
     * (phpseclib uses anoher extension when it is available)
     *
     * @param string $data   original data
     * @param string $secret the secret
     *
     * @return string the encrypted result
     */
    public function cookieEncrypt($data, $secret)
    {
        $mac_secret = $this->getMACSecret($secret);
        $aes_secret = $this->getAESSecret($secret);
        $iv = $this->createIV();
        if ($this->_use_openssl) {
            $result = openssl_encrypt(
                $data,
                'AES-128-CBC',
                $aes_secret,
                0,
                $iv
            );
        } else {
            $cipher = new Crypt\AES(Crypt\Base::MODE_CBC);
            $cipher->setIV($iv);
            $cipher->setKey($aes_secret);
            $result = base64_encode($cipher->encrypt($data));
        }
        $this->cleanSSLErrors();
        $iv = base64_encode($iv);
        return json_encode(
            [
                'iv' => $iv,
                'mac' => hash_hmac('sha1', $iv . $result, $mac_secret),
                'payload' => $result,
            ]
        );
    }

    /**
     * Decryption using openssl's AES or phpseclib's AES
     * (phpseclib uses anoher extension when it is available)
     *
     * @param string $encdata encrypted data
     * @param string $secret  the secret
     *
     * @return string|false original data, false on error
     */
    public function cookieDecrypt($encdata, $secret)
    {
        $data = json_decode($encdata, true);

        if (! is_array($data) || ! isset($data['mac']) || ! isset($data['iv']) || ! isset($data['payload'])
            || ! is_string($data['mac']) || ! is_string($data['iv']) || ! is_string($data['payload'])
            ) {
            return false;
        }

        $mac_secret = $this->getMACSecret($secret);
        $aes_secret = $this->getAESSecret($secret);
        $newmac = hash_hmac('sha1', $data['iv'] . $data['payload'], $mac_secret);

        if (! hash_equals($data['mac'], $newmac)) {
            return false;
        }

        if ($this->_use_openssl) {
            $result = openssl_decrypt(
                $data['payload'],
                'AES-128-CBC',
                $aes_secret,
                0,
                base64_decode($data['iv'])
            );
        } else {
            $cipher = new Crypt\AES(Crypt\Base::MODE_CBC);
            $cipher->setIV(base64_decode($data['iv']));
            $cipher->setKey($aes_secret);
            $result = $cipher->decrypt(base64_decode($data['payload']));
        }
        $this->cleanSSLErrors();
        return $result;
    }

    /**
     * Returns size of IV for encryption.
     *
     * @return int
     */
    public function getIVSize()
    {
        if ($this->_use_openssl) {
            return openssl_cipher_iv_length('AES-128-CBC');
        }
        return (new Crypt\AES(Crypt\Base::MODE_CBC))->block_size;
    }

    /**
     * Initialization
     * Store the initialization vector because it will be needed for
     * further decryption. I don't think necessary to have one iv
     * per server so I don't put the server number in the cookie name.
     *
     * @return string
     */
    public function createIV()
    {
        /* Testsuite shortcut only to allow predictable IV */
        if ($this->_cookie_iv !== null) {
            return $this->_cookie_iv;
        }
        if ($this->_use_openssl) {
            return openssl_random_pseudo_bytes(
                $this->getIVSize()
            );
        }

        return Crypt\Random::string(
            $this->getIVSize()
        );
    }

    /**
     * Sets encryption IV to use
     *
     * This is for testing only!
     *
     * @param string $vector The IV
     *
     * @return void
     */
    public function setIV($vector)
    {
        $this->_cookie_iv = $vector;
    }

    /**
     * Callback when user changes password.
     *
     * @param string $password New password to set
     *
     * @return void
     */
    public function handlePasswordChange($password)
    {
        $this->storePasswordCookie($password);
    }

    /**
     * Perform logout
     *
     * @return void
     */
    public function logOut()
    {
        /** @var Config $PMA_Config */
        global $PMA_Config;

        // -> delete password cookie(s)
        if ($GLOBALS['cfg']['LoginCookieDeleteAll']) {
            foreach ($GLOBALS['cfg']['Servers'] as $key => $val) {
                $PMA_Config->removeCookie('pmaAuth-' . $key);
                if ($PMA_Config->issetCookie('pmaAuth-' . $key)) {
                    $PMA_Config->removeCookie('pmaAuth-' . $key);
                }
            }
        } else {
            $cookieName = 'pmaAuth-' . $GLOBALS['server'];
            $PMA_Config->removeCookie($cookieName);
            if ($PMA_Config->issetCookie($cookieName)) {
                $PMA_Config->removeCookie($cookieName);
            }
        }
        parent::logOut();
    }
}

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