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1<?php // phpcs:ignore - WordPress.Files.FileName.InvalidClassFileName
2
3namespace Automattic\Jetpack\Waf;
4
5use Automattic\Jetpack\Connection\Client;
6use Jetpack_Options;
7use WP_Error;
8use WP_User;
9
10/**
11 * Class Blocked_Login_Page
12 *
13 * Instantiated on the wp-login page when Jetpack modules are loaded and $pagenow
14 * is available, or during the login_head hook.
15 *
16 * Class will only be instantiated if a hard blocked IP address is detected.
17 */
18abstract class Blocked_Login_Page {
19
20    /**
21     * Instance of the class.
22     *
23     * @var Blocked_Login_Page
24     */
25    private static $instance = null;
26
27    /**
28     * Can send recovery emails. defaults to true.
29     *
30     * @var bool
31     */
32    public $can_send_recovery_emails;
33
34    /**
35     * The IP address.
36     *
37     * @var string
38     */
39    public $ip_address;
40
41    /**
42     * Valid blocked user ID.
43     *
44     * @var int
45     */
46    public $valid_blocked_user_id;
47
48    /**
49     * The email address.
50     *
51     * @var string
52     */
53    public $email_address;
54
55    /**
56     * Status code for too many requests.
57     *
58     * @var int
59     */
60    const HTTP_STATUS_CODE_TOO_MANY_REQUESTS = 429;
61
62    /**
63     * Singleton implementation
64     *
65     * @param string $ip_address - the IP address.
66     *
67     * @return object
68     */
69    public static function instance( $ip_address ) {
70        if ( ! self::$instance ) {
71            // @phan-suppress-next-line PhanTypeInstantiateAbstractStatic -- This is only instantiated in non-abstract classes (i.e. Waf_Blocked_Login_Page).
72            self::$instance = new static( $ip_address );
73        }
74
75        return self::$instance;
76    }
77
78    /**
79     * Singleton implementation
80     *
81     * @param string $ip_address - the IP address.
82     */
83    public function __construct( $ip_address ) {
84        /**
85         * Filter controls if an email recovery form is shown to blocked IPs.
86         *
87         * A recovery form allows folks to re-gain access to the login form
88         * via an email link if their IP was mistakenly blocked.
89         *
90         * @module protect
91         *
92         * @since 5.6.0
93         *
94         * @param bool $can_send_recovery_emails Defaults to true.
95         */
96        $this->can_send_recovery_emails = apply_filters( 'jetpack_protect_can_send_recovery_emails', true );
97        $this->ip_address               = $ip_address;
98
99        add_filter( 'wp_authenticate_user', array( $this, 'check_valid_blocked_user' ), 10, 1 );
100        add_filter( 'site_url', array( $this, 'add_args_to_login_post_url' ), 10, 3 );
101        add_filter( 'network_site_url', array( $this, 'add_args_to_login_post_url' ), 10, 3 );
102        add_filter( 'lostpassword_url', array( $this, 'add_args_to_lostpassword_url' ), 10, 2 );
103        add_filter( 'login_url', array( $this, 'add_args_to_login_url' ), 10, 3 );
104        add_filter( 'lostpassword_redirect', array( $this, 'add_args_to_lostpassword_redirect_url' ), 10, 1 );
105    }
106
107    /**
108     * Gets the URL that redirects to the support page on unblocking
109     *
110     * @since 8.5.0
111     *
112     * @return string
113     */
114    abstract public function get_help_url();
115
116    /**
117     * Add arguments to lost password redirect url.
118     *
119     * @param string $url - the URL.
120     */
121    public function add_args_to_lostpassword_redirect_url( $url ) {
122        if ( $this->valid_blocked_user_id ) {
123            $url = empty( $url ) ? wp_login_url() : $url;
124            $url = add_query_arg(
125                array(
126                    'validate_jetpack_protect_recovery' => isset( $_GET['validate_jetpack_protect_recovery'] ) ? filter_var( wp_unslash( $_GET['validate_jetpack_protect_recovery'] ) ) : null, // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Nothing on the site is changed in response to this request.
127                    'user_id'                           => isset( $_GET['user_id'] ) ? (int) $_GET['user_id'] : null, // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Nothing on the site is changed in response to this request.
128                    'checkemail'                        => 'confirm',
129                ),
130                $url
131            );
132        }
133
134        return $url;
135    }
136
137    /**
138     * Add arguments to lost password redirect url.
139     *
140     * @param string $url - the URL.
141     * @param string $redirect - where to redirect to.
142     */
143    public function add_args_to_lostpassword_url( $url, $redirect ) {
144        if ( $this->valid_blocked_user_id ) {
145            $args = array(
146                'validate_jetpack_protect_recovery' => isset( $_GET['validate_jetpack_protect_recovery'] ) ? filter_var( wp_unslash( $_GET['validate_jetpack_protect_recovery'] ) ) : null, // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Nothing on the site is changed in response to this request.
147                'user_id'                           => isset( $_GET['user_id'] ) ? (int) $_GET['user_id'] : null, // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Nothing on the site is changed in response to this request.
148                'action'                            => 'lostpassword',
149            );
150            if ( ! empty( $redirect ) ) {
151                $args['redirect_to'] = $redirect;
152            }
153            $url = add_query_arg( $args, $url );
154        }
155
156        return $url;
157    }
158
159    /**
160     * Add arguments to login post url.
161     *
162     * @param string $url - the URL.
163     * @param string $path - the path.
164     * @param string $scheme -the scheme(?).
165     */
166    public function add_args_to_login_post_url( $url, $path, $scheme ) {
167        if ( $this->valid_blocked_user_id && ( 'login_post' === $scheme || 'login' === $scheme ) ) {
168            $url = add_query_arg(
169                array(
170                    'validate_jetpack_protect_recovery' => isset( $_GET['validate_jetpack_protect_recovery'] ) ? filter_var( wp_unslash( $_GET['validate_jetpack_protect_recovery'] ) ) : null, // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Nothing on the site is changed in response to this request.
171                    'user_id'                           => isset( $_GET['user_id'] ) ? (int) $_GET['user_id'] : null, // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Nothing on the site is changed in response to this request.
172                ),
173                $url
174            );
175
176        }
177
178        return $url;
179    }
180
181    /**
182     * Add arguments to login post url.
183     *
184     * @param string $url - the URL.
185     * @param string $redirect - where we want to redirect to.
186     * @param string $force_reauth -if we're forcing reauthorization.
187     */
188    public function add_args_to_login_url( $url, $redirect, $force_reauth ) {
189        if ( $this->valid_blocked_user_id ) {
190            $args = array(
191                'validate_jetpack_protect_recovery' => isset( $_GET['validate_jetpack_protect_recovery'] ) ? filter_var( wp_unslash( $_GET['validate_jetpack_protect_recovery'] ) ) : null, // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Nothing on the site is changed in response to this request.
192                'user_id'                           => isset( $_GET['user_id'] ) ? (int) $_GET['user_id'] : null, // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Nothing on the site is changed in response to this request.
193            );
194
195            if ( ! empty( $redirect ) ) {
196                $args['redirect_to'] = $redirect;
197            }
198
199            if ( ! empty( $force_reauth ) ) {
200                $args['reauth'] = '1';
201            }
202            $url = add_query_arg( $args, $url );
203        }
204
205        return $url;
206    }
207
208    /**
209     * Check if user is blocked.
210     *
211     * @param WP_User|WP_Error $user - The user or error object if prior callback failed auth.
212     */
213    public function check_valid_blocked_user( $user ) {
214        if ( is_wp_error( $user ) ) {
215            return $user;
216        }
217
218        if ( $this->valid_blocked_user_id && $this->valid_blocked_user_id != $user->ID ) { // phpcs:ignore Universal.Operators.StrictComparisons.LooseNotEqual
219            return new WP_Error( 'invalid_recovery_token', __( 'The recovery token is not valid for this user.', 'jetpack-waf' ) );
220        }
221
222        return $user;
223    }
224
225    /**
226     * Check if user is valid.
227     */
228    public function is_blocked_user_valid() {
229        if ( ! $this->can_send_recovery_emails ) {
230            return false;
231        }
232
233        if ( $this->valid_blocked_user_id ) {
234            return true;
235        }
236
237        if ( ! isset( $_GET['validate_jetpack_protect_recovery'] ) || ! isset( $_GET['user_id'] ) ) { // phpcs:ignore: WordPress.Security.NonceVerification.Recommended -- no changes made if this isn't set.
238            return false;
239        }
240
241        if ( ! $this->is_valid_protect_recovery_key( filter_var( wp_unslash( $_GET['validate_jetpack_protect_recovery'] ) ), (int) $_GET['user_id'] ) ) { // phpcs:ignore: WordPress.Security.NonceVerification.Recommended -- no changes made if this isn't set.
242            return false;
243        }
244
245        $this->valid_blocked_user_id = (int) $_GET['user_id']; // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Nothing on the site is changed in response to this request.
246
247        return true;
248    }
249
250    /**
251     * Checks if recovery key is valid.
252     *
253     * @param string $key - they recovery key.
254     * @param int    $user_id - the User ID.
255     */
256    public function is_valid_protect_recovery_key( $key, $user_id ) {
257
258        $path     = sprintf( '/sites/%d/protect/recovery/confirm', Jetpack_Options::get_option( 'id' ) );
259        $response = Client::wpcom_json_api_request_as_blog(
260            $path,
261            '1.1',
262            array(
263                'method' => 'post',
264            ),
265            array(
266                'token'   => $key,
267                'user_id' => $user_id,
268                'ip'      => $this->ip_address,
269            )
270        );
271
272        $result = json_decode( wp_remote_retrieve_body( $response ) );
273
274        if ( is_wp_error( $result ) || empty( $result ) || isset( $result->error ) ) {
275            return false;
276        }
277
278        set_transient( 'jetpack_protect_recovery_key_validated_' . $user_id, true, 600 );
279
280        return true;
281    }
282
283    /**
284     * Check if we should render the recovery form.
285     */
286    public function render_and_die() {
287        if ( ! $this->can_send_recovery_emails ) {
288            $this->render_blocked_login_message();
289
290            return;
291        }
292
293        if ( isset( $_GET['validate_jetpack_protect_recovery'] ) && ! empty( $_GET['user_id'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- no site changes, just throws invalid token error.
294            $error = new WP_Error( 'invalid_token', __( "Oops, we couldn't validate the recovery token.", 'jetpack-waf' ) );
295            $this->protect_die( $error );
296
297            return;
298        }
299
300        if (
301            isset( $_GET['jetpack-protect-recovery'] ) &&
302            isset( $_POST['_wpnonce'] ) &&
303            wp_verify_nonce( $_POST['_wpnonce'], 'bypass-protect' ) // phpcs:ignore WordPress.Security.ValidatedSanitizedInput -- WP Core doesn't unstrip or sanitize nonces either.
304        ) {
305            $this->process_recovery_email();
306
307            return;
308        }
309
310        if ( isset( $_GET['loggedout'] ) && 'true' === $_GET['loggedout'] ) {
311            $this->protect_die( __( 'You successfully logged out.', 'jetpack-waf' ) );
312        }
313
314        $this->render_recovery_form();
315    }
316
317    /**
318     * Render the blocked login message.
319     */
320    public function render_blocked_login_message() {
321        $this->protect_die( $this->get_html_blocked_login_message() );
322    }
323
324    /**
325     * Process sending a recovery email.
326     */
327    public function process_recovery_email() {
328        $sent               = $this->send_recovery_email();
329        $show_recovery_form = true;
330        if ( is_wp_error( $sent ) ) {
331            if ( 'email_already_sent' === $sent->get_error_code() ) {
332                $show_recovery_form = false;
333            }
334            $this->protect_die( $sent, null, true, $show_recovery_form );
335        } else {
336            $this->render_recovery_success();
337        }
338    }
339
340    /**
341     * Send the recovery form.
342     */
343    public function send_recovery_email() {
344        $email = isset( $_POST['email'] ) ? wp_unslash( $_POST['email'] ) : ''; // phpcs:ignore WordPress.Security.NonceVerification.Missing, WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- only triggered after bypass-protect nonce check is done, and sanitization is checked on the next line.
345        if ( sanitize_email( $email ) !== $email || ! is_email( $email ) ) {
346            return new WP_Error( 'invalid_email', __( "Oops, looks like that's not the right email address. Please try again!", 'jetpack-waf' ) );
347        }
348        $user = get_user_by( 'email', trim( $email ) );
349
350        if ( ! $user ) {
351            return new WP_Error( 'invalid_user', __( "Oops, we couldn't find a user with that email. Please try again!", 'jetpack-waf' ) );
352        }
353        $this->email_address = $email;
354        $path                = sprintf( '/sites/%d/protect/recovery/request', Jetpack_Options::get_option( 'id' ) );
355
356        $response = Client::wpcom_json_api_request_as_blog(
357            $path,
358            '1.1',
359            array(
360                'method' => 'post',
361            ),
362            array(
363                'user_id' => $user->ID,
364                'ip'      => $this->ip_address,
365            )
366        );
367
368        $code   = wp_remote_retrieve_response_code( $response );
369        $result = json_decode( wp_remote_retrieve_body( $response ) );
370
371        if ( self::HTTP_STATUS_CODE_TOO_MANY_REQUESTS === $code ) {
372            // translators: email address the recovery instructions were sent to.
373            return new WP_Error( 'email_already_sent', sprintf( __( 'Recovery instructions were sent to %s. Check your inbox!', 'jetpack-waf' ), esc_html( $this->email_address ) ) );
374        } elseif ( is_wp_error( $result ) || empty( $result ) || isset( $result->error ) ) {
375            return new WP_Error( 'email_send_error', __( 'Oops, we were unable to send a recovery email. Try again.', 'jetpack-waf' ) );
376        }
377
378        return true;
379    }
380
381    /**
382     * Prevent login by locking the login page.
383     *
384     * @param string|WP_Error $content       - the content of the page.
385     * @param string|null     $title         - the page title.
386     * @param bool            $back_link     - the back link.
387     * @param bool            $recovery_form - the recovery form.
388     */
389    public function protect_die( $content, $title = null, $back_link = false, $recovery_form = false ) {
390        if ( empty( $title ) ) {
391            $title = __( 'Jetpack has locked your site\'s login page.', 'jetpack-waf' );
392        }
393        if ( is_wp_error( $content ) ) {
394            $svg     = '<svg class="gridicon gridicons-notice" height="24" width="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><g><path d="M12 2C6.477 2 2 6.477 2 12s4.477 10 10 10 10-4.477 10-10S17.523 2 12 2zm1 15h-2v-2h2v2zm0-4h-2l-.5-6h3l-.5 6z"/></g></svg>';
395            $content = '<span class="error"> ' . $svg . $content->get_error_message() . '</span>';
396        }
397        $content = '<p>' . $content . '</p>';
398
399        // If for some reason the login pop up box show up in the wp-admin.
400        if ( isset( $_GET['interim-login'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- no changes to the site itself, just rendering an error message.
401            $content = '<style>html{ background-color: #fff; } #error-message { margin:0 auto; padding: 1em; box-shadow: none; } </style>' . $content;
402        }
403        $this->display_page( $title, $content, $back_link, $recovery_form );
404    }
405
406    /**
407     * Render the recovery form.
408     */
409    public function render_recovery_form() {
410        $content = $this->get_html_blocked_login_message();
411        $this->protect_die( $content, null, false, true );
412    }
413
414    /**
415     * Render the recovery instructions.
416     */
417    public function render_recovery_success() {
418        // translators: the email address the recovery email was sent to.
419        $this->protect_die( sprintf( __( 'Recovery instructions were sent to %s. Check your inbox!', 'jetpack-waf' ), $this->email_address ) );
420    }
421
422    /**
423     * Get the HTML for the blocked login message.
424     */
425    public function get_html_blocked_login_message() {
426        $icon = '<svg class="gridicon gridicons-spam" style="fill:#d94f4f" height="24" width="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><g><path d="M17 2H7L2 7v10l5 5h10l5-5V7l-5-5zm-4 15h-2v-2h2v2zm0-4h-2l-.5-6h3l-.5 6z"/></g></svg>';
427        $ip   = str_replace( 'http://', '', esc_url( 'http://' . $this->ip_address ) );
428        return sprintf(
429            // translators: the IP address that was flagged.
430            __( '<p>Your IP address <code>%2$s</code> has been flagged for potential security violations. You can unlock your login by sending yourself a special link via email. <a href="%3$s">Learn More</a></p>', 'jetpack-waf' ), // phpcs:ignore WordPress.WP.I18n.NoHtmlWrappedStrings
431            $icon,
432            $ip,
433            esc_url( $this->get_help_url() )
434        );
435    }
436
437    /**
438     * Get the HTML recovery form.
439     */
440    public function get_html_recovery_form() {
441        // Build the markup as a string instead of using output buffering. Calling
442        // ob_start() while PHP is executing an output-buffer handler (e.g. a page
443        // cache or compression handler) raises a fatal: "Cannot use output buffering
444        // in output buffering display handlers".
445        return sprintf(
446            '<div>
447            <form method="post" action="?jetpack-protect-recovery=true">
448                %1$s
449                <p><label for="email">%2$s<br/></label>
450                    <input type="email" name="email" class="text-input"/>
451                    <input type="submit" class="button" value="%3$s"/>
452                </p>
453            </form>
454        </div>',
455            wp_nonce_field( 'bypass-protect', '_wpnonce', true, false ),
456            esc_html__( 'Your email', 'jetpack-waf' ),
457            esc_attr__( 'Send email', 'jetpack-waf' )
458        );
459    }
460
461    /**
462     * Display the page.
463     *
464     * @param string $title         - the page title.
465     * @param string $message       - the message we're sending.
466     * @param bool   $back_button   - the back button.
467     * @param bool   $recovery_form - the recovery form.
468     * @return never
469     */
470    public function display_page( $title, $message, $back_button = false, $recovery_form = false ) {
471
472        if ( ! headers_sent() ) {
473            nocache_headers();
474            header( 'Content-Type: text/html; charset=utf-8' );
475        }
476
477        $text_direction = 'ltr';
478        if ( is_rtl() ) {
479            $text_direction = 'rtl';
480        }
481        ?>
482        <!DOCTYPE html>
483        <html xmlns="http://www.w3.org/1999/xhtml"
484        <?php
485        if ( function_exists( 'language_attributes' ) && function_exists( 'is_rtl' ) ) {
486            language_attributes();
487        } else {
488            echo "dir='$text_direction'"; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
489        }
490        ?>
491        >
492        <head>
493            <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
494            <meta name="viewport" content="width=device-width">
495            <?php
496            if ( get_option( 'blog_public' ) ) {
497                echo "<meta name='robots' content='noindex,follow' />\n";
498            } else {
499                echo "<meta name='robots' content='noindex,nofollow' />\n";
500            }
501            ?>
502            <title><?php echo esc_html( $title ); ?></title>
503            <style type="text/css">
504                html {
505                    background: #f6f6f6;
506                }
507
508                body {
509                    color: #2e4453;
510                    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
511                    margin: 2em auto;
512                    padding: 1em 2em;
513                    max-width: 460px;
514                    text-align: left;
515                }
516                body.is-rtl {
517                    text-align: right;
518                }
519                h1 {
520                    clear: both;
521                    color: #3d596d;
522                    font-size: 24px;
523                    margin:0 0 24px 0;
524                    padding: 0;
525                    font-weight: 400;
526                }
527
528                #error-message {
529                    box-sizing: border-box;
530                    background: white;
531                    box-shadow: 0 0 0 1px rgba(200, 215, 225, 0.5), 0 1px 2px #e9eff3;
532                    padding: 24px;
533                }
534
535                #error-message img {
536                    margin: 0 auto;
537                    display: block;
538                }
539
540                #error-page {
541                    margin-top: 50px;
542                }
543
544                #error-page p {
545                    font-size: 14px;
546                    line-height: 1.5;
547                    margin: 24px 0 0;
548                }
549
550                #error-page code {
551                    font-family: Consolas, Monaco, monospace;
552                }
553
554                ul li {
555                    margin-bottom: 10px;
556                    font-size: 14px;
557                }
558
559                a {
560                    color: #00aadc;
561                }
562
563                label {
564                    font-weight: bold;
565                    font-size:16px;
566                }
567
568                a:hover,
569                a:active {
570                    color: #0085be;
571                }
572
573                a:focus {
574                    color: #124964;
575                    -webkit-box-shadow: 0 0 0 1px #4f94d4,
576                    0 0 2px 1px rgba(30, 140, 190, .8);
577                    box-shadow: 0 0 0 1px #4f94d4,
578                    0 0 2px 1px rgba(30, 140, 190, .8);
579                    outline: none;
580                }
581
582                .button {
583                    background: #00aadc;
584                    color: white;
585                    border-color: #008ab3;
586                    border-style: solid;
587                    border-width: 1px 1px 2px;
588                    cursor: pointer;
589                    display: inline-block;
590                    margin: 0;
591                    margin-right: 0;
592                    outline: 0;
593                    overflow: hidden;
594                    font-weight: 500;
595                    text-overflow: ellipsis;
596                    text-decoration: none;
597                    vertical-align: top;
598                    box-sizing: border-box;
599                    font-size: 14px;
600                    line-height: 21px;
601                    border-radius: 4px;
602                    padding: 7px 14px 9px;
603                    -webkit-appearance: none;
604                    -moz-appearance: none;
605                    appearance: none;
606                    font-size: 14px;
607                    width: 100%;
608                }
609
610                .button:hover,
611                .button:focus {
612                    border-color: #005082;
613                    outline: none;
614                }
615
616                .button:focus {
617                    border-color: #005082;
618                    -webkit-box-shadow: 0 0 3px rgba(0, 115, 170, .8);
619                    box-shadow: 0 0 3px rgba(0, 115, 170, .8);
620                    outline: none;
621                }
622                .button::-moz-focus-inner {
623                    border: 0;
624                }
625
626                .button:active {
627                    border-width: 2px 1px 1px;
628                }
629                .gridicon {
630                    fill: currentColor;
631                    vertical-align: middle;
632                }
633                #error-footer {
634                    padding: 16px;
635                }
636                #error-footer a {
637                    text-decoration: none;
638                    line-height:20px;
639                    font-size: 14px;
640                    color: #4f748e;
641                }
642                #error-footer a:hover {
643                    color: #2e4453;
644                }
645                #error-footer .gridicon{
646                    width: 16px;
647                }
648                #error-footer .gridicons-help {
649                    width: 24px;
650                    margin-right:8px;
651                }
652
653                .is-rtl #error-footer .gridicons-help {
654                    margin-left:8px;
655                }
656
657                .error {
658                    background: #d94f4f;
659                    color:#FFF;
660                    display: block;
661                    border-radius: 3px;
662                    line-height: 1.5;
663                    padding: 16px;
664                    padding-left: 42px;
665                }
666                .is-rtl .error {
667                    padding-right: 42px;
668                }
669                .error .gridicon {
670                    float: left;
671                    margin-left: -32px;
672                }
673
674                .is-rtl .error .gridicon {
675                    float: right;
676                    margin-right: -32px;
677                }
678
679                .text-input {
680                    margin: 0;
681                    padding: 7px 14px;
682                    width: 100%;
683                    color: #2e4453;
684                    font-size: 16px;
685                    line-height: 1.5;
686                    border: 1px solid #c8d7e1;
687                    background-color: white;
688                    transition: all .15s ease-in-out;
689                    box-sizing: border-box;
690                    margin: 8px 0 16px;
691                }
692                #image {
693                    display: block;
694                    width: 200px;
695                    margin: 0 auto;
696                }
697                <?php
698                $rtl_class = '';
699                if ( 'rtl' === $text_direction ) {
700                    $rtl_class = 'class="is-rtl"';
701                    echo 'body { font-family: Tahoma, Arial; }';
702                }
703                ?>
704            </style>
705        </head>
706        <body id="error-page" <?php echo $rtl_class; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>>
707            <h1 id="error-title"><?php echo esc_html( $title ); ?></h1>
708            <div id="error-message">
709                <svg id="image" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewBox="0 0 250 134">
710                    <path fill="#E9EFF4" d="M205.2,129.8c3.7-0.7,7.4-0.9,11.1-1.1l5.5-0.1l5.5,0c3.7,0,7.4,0.1,11.1,0.2c3.7,0.1,7.4,0.3,11.1,0.8 c0.3,0,0.5,0.3,0.5,0.6c0,0.2-0.2,0.4-0.5,0.5c-3.7,0.5-7.4,0.6-11.1,0.8c-3.7,0.1-7.4,0.2-11.1,0.2l-5.5,0l-5.5-0.1 c-3.7-0.1-7.4-0.4-11.1-1.1c-0.1,0-0.2-0.2-0.2-0.3C205,129.9,205.1,129.8,205.2,129.8"/>
711                    <path fill="#E9EFF4" d="M0.2,130.9c3-0.7,5.9-0.9,8.9-1.1l4.4-0.1l4.4,0c3,0,5.9,0.1,8.9,0.2c3,0.1,5.9,0.3,8.9,0.8 c0.3,0,0.5,0.3,0.4,0.6c0,0.2-0.2,0.4-0.4,0.4c-3,0.5-5.9,0.6-8.9,0.8c-3,0.1-5.9,0.2-8.9,0.2l-4.4,0l-4.4-0.1 c-3-0.1-5.9-0.4-8.9-1.1c-0.1,0-0.2-0.2-0.2-0.3C0,131,0.1,130.9,0.2,130.9"/>
712                    <path fill="#C8D7E2" d="M101.6,130.1H70.1V52.5c0-8.5,6.9-15.3,15.3-15.3h16.1V130.1z"/>
713                    <path fill="#0DA9DD" d="M191.5,130.1h-73.8v-5.4c0-8.9,7.2-16.1,16.1-16.1h57.7V130.1z"/>
714                    <path fill="#C7E9F5" d="M55.2,25.6l-0.1,9.8L55,57l-0.1,21.6c0,0.2,0.2,0.4,0.4,0.4c0.2,0,0.4-0.2,0.4-0.4L56.6,57l0.8-21.6 c0.1-3.3,0.2-6.5,0.3-9.8H55.2z"/>
715                    <path fill="#C7E9F5" d="M203.1,25.6l0.1,18.1c0.2,28.8,0.4,57.6,1.2,86.3c0,0.4,0.4,0.8,0.8,0.8c0.4,0,0.8-0.3,0.8-0.8 c0.8-28.8,1-57.6,1.2-86.3l0.1-18.1H203.1z"/>
716                    <path fill="#7FD3F2" d="M55.3,25.6v-8.2v-6.8c0-5.9,4-10.7,9-10.7h134c5,0,9,4.8,9,10.7v14.9H55.3z"/>
717                    <path fill="#005083" d="M210.7,25.6c-13.3,1.1-26.7,1-40,1l-40,0.2l-40-0.2c-13.3-0.1-26.7,0-40-1V25c13.3-1.1,26.7-1,40-1l40-0.2 l40,0.2c13.3,0.1,26.7,0,40,1V25.6z"/>
718                    <polygon fill="#C7E9F5" points="168.7,95.6 117.7,95.6 117.7,44.6     "/>
719                    <path fill="#C8D7E2" d="M191.5,56.5c0,11-8.9,19.9-19.9,19.9c-11,0-19.9-8.9-19.9-19.9c0-11,8.9-19.9,19.9-19.9 C182.6,36.6,191.5,45.5,191.5,56.5"/>
720                    <path fill="#FFFFFF" d="M213.2,95.5c-3.3-5.1-3.2-16.7-3.2-28.4h-32.3c0,0-5.2,25.5,4.6,33c7.5-0.1,29.9-0.6,29.9-0.6"/>
721                    <path fill="#C8D7E2" d="M213.5,95.3l-0.1-0.1l-0.3-0.5c-0.2-0.4-0.3-0.7-0.5-1.1c-0.3-0.8-0.5-1.6-0.7-2.4c-0.1-0.5-0.2-1.1-0.3-1.6 c-0.4,0-0.8,0-1.2,0c0.5,2.1,1.1,4.3,2.4,6.1l0.2,0.2c0.2,0,0.4-0.1,0.5-0.3C213.6,95.5,213.6,95.4,213.5,95.3L213.5,95.3z"/>
722                    <path fill="#C8D7E2" d="M212.5,98.6c-0.1,0-0.2,0-0.3,0l-0.1,0H212l-0.3,0l-0.6,0l-1.3,0l-2.5,0l-5,0l-19.5,0.2 c-1.9-1.7-3.1-4.1-3.8-6.5c-0.8-2.6-1.1-5.4-1.2-8.2c-0.2-5.2,0.3-10.4,1.1-15.6l5.7-0.1c0-0.9,0-1.8,0-2.6l-4.4,0l-2.5,0 c-0.4,0-0.8,0.2-1,0.5c-0.1,0.2-0.2,0.3-0.3,0.5l-0.1,0.3l-0.2,1.2c-0.3,1.7-0.5,3.3-0.7,5c-0.3,3.3-0.5,6.7-0.4,10.1 c0.1,3.4,0.5,6.7,1.5,10c0.5,1.6,1.2,3.2,2.2,4.7c0.5,0.7,1,1.4,1.7,2c0.3,0.3,0.6,0.6,1,0.9l0.1,0.1c0.1,0,0.2,0.1,0.3,0.2 c0.2,0.1,0.5,0.1,0.6,0.1l0.6,0l20-0.6l5-0.2l2.5-0.1l1.2,0l0.3,0l0.2,0c0,0,0.3,0,0.4-0.1c0.3-0.2,0.5-0.5,0.5-0.9 C213.1,99.1,212.9,98.7,212.5,98.6z"/>
723                    <path fill="#FFFFFF" d="M223.1,84.8c-3.3-5.1-4.8-16.7-4.8-28.4h-32.3c0,0-3.5,25.5,6.3,33c7.5-0.1,29.9-0.6,29.9-0.6"/>
724                    <path fill="#C8D7E2" d="M222.9,84.9c-1.3-2.1-2.2-4.4-2.8-6.7c-0.6-2.4-1.1-4.8-1.5-7.2c-0.7-4.8-1-9.1-1-13.9l0,0l-31,0.1l0,0 c-0.4,2.8-0.5,5.1-0.5,7.9c-0.1,2.9,0,5.7,0.3,8.6c0.3,2.8,0.8,5.7,1.7,8.3c0.9,2.6,2.3,5.2,4.5,6.9l-0.4-0.1l14.9-0.2 c5-0.1,10-0.1,14.9-0.1c0.1,0,0.3,0.1,0.3,0.3c0,0.1-0.1,0.3-0.2,0.3c-5,0.2-10,0.4-14.9,0.5l-14.9,0.4c-0.1,0-0.3,0-0.4-0.1l0,0 c-2.5-1.9-3.9-4.7-5-7.4c-1-2.8-1.5-5.7-1.9-8.6c-0.3-2.9-0.4-5.8-0.4-8.8c0.1-2.9,0.2-5.8,0.6-8.8c0-0.4,0.4-0.6,0.7-0.6h0 l32.3,0.1h0c0.3,0,0.6,0.3,0.6,0.6v0c0,4.8,0.2,9.6,0.7,14.4c0.3,2.4,0.6,4.8,1.2,7.1c0.5,2.3,1.2,4.7,2.4,6.8c0,0.1,0,0.1,0,0.2 C223.1,85,223,85,222.9,84.9"/>
725                    <path fill="#C8D7E2" d="M192.1,67.1c1.6-0.9,3.4-1.2,5.1-1.3c1.7-0.2,3.5-0.2,5.2-0.2c3.5,0.1,6.9,0.2,10.3,1c0.1,0,0.2,0.2,0.2,0.3 c0,0.1-0.1,0.2-0.2,0.2c-3.4,0.2-6.9,0-10.3,0c-1.7,0-3.4,0-5.1,0c-1.7,0-3.4,0.1-5.1,0.3l0,0c-0.1,0-0.1,0-0.1-0.1 C192,67.2,192.1,67.1,192.1,67.1"/>
726                    <path fill="#C8D7E2" d="M194.1,74c1.4,0,2.7,0,4.1,0c1.4,0,2.7,0,4.1,0c2.7,0,5.4-0.1,8.2-0.2c0.1,0,0.3,0.1,0.3,0.3 c0,0.1-0.1,0.2-0.2,0.3c-1.3,0.5-2.7,0.7-4.1,0.9c-1.4,0.2-2.8,0.2-4.2,0.3c-1.4,0-2.8,0-4.2-0.2c-1.4-0.2-2.8-0.4-4.1-1.1 c-0.1,0-0.1-0.1,0-0.2C193.9,74.1,194,74,194.1,74L194.1,74z"/>
727                    <path fill="#86A6BD" d="M40.2,88.6c-0.5,0-0.8-0.4-0.9-0.9l-0.1-8.2c0-0.7,0-1.4,0-2.1c0.1-0.7,0.2-1.5,0.4-2.2c0.4-1.4,1-2.8,1.9-4 c1.7-2.5,4.3-4.3,7.1-5.1c0.7-0.2,1.5-0.3,2.2-0.5c0.7-0.1,1.5-0.1,2.2-0.1c1.3,0,2.9,0,4.4,0.4c2.9,0.7,5.6,2.5,7.4,4.9 c0.9,1.2,1.6,2.6,2.1,4c0.5,1.4,0.6,3,0.6,4.4l0,16.4c0,0.7-0.6,1.3-1.3,1.3l-6.7,0c-0.7,0-1.3-0.6-1.3-1.3v0l0-10.8l0-5.4 c0-1.4-0.7-2.8-1.8-3.5c-0.6-0.4-1.3-0.6-2-0.7c-0.7,0-1.9,0-2.5,0c-1.4,0.1-2.7,1-3.3,2.3c-0.3,0.7-0.4,1.3-0.4,2.1l0,2.7 l-0.1,5.4l0,0c0,0.5-0.4,0.9-1,0.9"/>
728                    <path fill="#FFFFFF" d="M41.1,86.9l0.1-7.3c-0.1-2.6,0.7-5,2.1-7.1c1.4-2,3.6-3.5,5.9-4.1c0.6-0.2,1.2-0.3,1.8-0.3 c0.6,0,1.2-0.1,1.9,0c1.4,0,2.5,0,3.7,0.4c2.4,0.6,4.5,2,5.9,4c0.7,1,1.3,2.1,1.6,3.2c0.4,1.2,0.5,2.3,0.5,3.7l0,15.1l0,0l-4.2,0 l0-9.5l0-5.4c0-2.2-1.2-4.4-3-5.5c-0.9-0.6-2-0.9-3.1-1c-1.1,0-1.7,0-2.9,0c-2.2,0.2-4.2,1.7-5.1,3.6c-0.5,0.9-0.7,2.1-0.6,3.1 l0,2.7l0.1,4.4l0,0L41.1,86.9L41.1,86.9"/>
729                    <path fill="#86A6BD" d="M36.3,133c-1.9,0-3.8-1.1-4.8-2.8c-0.5-0.8-0.7-1.8-0.7-2.8l0-2.4l0-9.6l-0.1-9.6l0-4.8c0-0.7,0-1.8,0.3-2.8 c0.3-1,0.9-1.8,1.7-2.5c0.8-0.6,1.7-1.1,2.7-1.3c1.1-0.2,1.8-0.1,2.6-0.1l4.8,0l9.6-0.1l19.2,0c2.1,0,4.1,1.2,5.1,3 c0.5,0.9,0.8,2,0.8,3l0,2.4l0,9.6l-0.1,9.6l0,4.8c0,0.7,0,1.8-0.4,2.8c-0.3,0.9-1,1.8-1.7,2.4c-0.8,0.6-1.7,1.1-2.7,1.2 c-1.1,0.1-1.8,0-2.6,0.1l-4.8,0l-9.6-0.1L36.3,133z"/>
730                    <path fill="#FFFFFF" d="M74.8,112.3l-0.1-9.6l0-2.4c0-0.6-0.1-1.1-0.4-1.6c-0.6-1-1.7-1.6-2.8-1.6l-19.2,0L42.7,97l-4.8,0 c-0.8,0-1.7,0-2.2,0c-0.6,0.1-1.1,0.3-1.6,0.7c-0.5,0.4-0.8,0.9-1,1.4c-0.2,0.6-0.2,1.1-0.2,2l0,4.8l-0.1,9.6l0,9.6l0,2.4 c0,0.6,0.2,1.3,0.5,1.8c0.6,1.1,1.9,1.8,3.1,1.8l19.2-0.1l9.6-0.1l4.8,0c0.8,0,1.7,0,2.2-0.1c0.6-0.1,1.2-0.4,1.6-0.8 c0.5-0.4,0.8-0.9,1-1.5c0.2-0.6,0.2-1.1,0.2-2l0-4.8L74.8,112.3z"/>
731                    <path fill="#86A6BD" d="M48.1,121.4l2.9-6.2c0.3-0.6,0.2-1.3-0.3-1.8c-1-1-1.5-2.5-1.2-4c0.3-1.7,1.7-3.1,3.4-3.4 c2.9-0.6,5.4,1.6,5.4,4.4c0,1.2-0.5,2.3-1.3,3.1c-0.5,0.5-0.6,1.2-0.3,1.8l2.9,6.2c0.1,0.2-0.1,0.5-0.3,0.5H48.4 C48.1,121.9,48,121.6,48.1,121.4"/>
732                </svg>
733
734                <?php echo $message; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- message includes HTML that's marked up ourselves. ?>
735                <?php
736                if ( $recovery_form ) {
737                    echo $this->get_html_recovery_form(); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- content is escaped in the function.
738                }
739                ?>
740            </div>
741            <div id="error-footer">
742            <?php
743            if ( $back_button && ! $recovery_form ) {
744                if ( 'rtl' === $text_direction ) {
745                    $back_button_icon = '<svg class="gridicon gridicons-arrow-right" height="24" width="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><g><path d="M12 4l-1.41 1.41L16.17 11H4v2h12.17l-5.58 5.59L12 20l8-8-8-8z"/></g></svg>';
746                } else {
747                    $back_button_icon = '<svg class="gridicon gridicons-arrow-left" height="24" width="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><g><path d="M20 11H7.83l5.59-5.59L12 4l-8 8 8 8 1.41-1.41L7.83 13H20v-2z"/></g></svg>';
748                }
749                ?>
750                <a href='javascript:history.back()'
751                <?php
752                printf(
753                    /* translators: %s is HTML markup, for a back icon. */
754                    __( '%s Back', 'jetpack-waf' ), // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
755                    $back_button_icon // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
756                );
757                ?>
758                </a>
759                <?php
760            } else {
761                $help_icon = '<svg class="gridicon gridicons-help" height="24" width="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><g><path d="M12 2C6.477 2 2 6.477 2 12s4.477 10 10 10 10-4.477 10-10S17.523 2 12 2zm1 16h-2v-2h2v2zm0-4.14V15h-2v-2c0-.552.448-1 1-1 1.103 0 2-.897 2-2s-.897-2-2-2-2 .897-2 2H8c0-2.21 1.79-4 4-4s4 1.79 4 4c0 1.862-1.278 3.413-3 3.86z"/></g></svg>';
762                ?>
763                    <a href="<?php echo esc_url( $this->get_help_url() ); ?>" rel="noopener noreferrer" target="_blank">
764                        <?php
765                        printf(
766                            /* translators: %s is HTML markup, for a help icon. */
767                            __( '%s Get help unlocking your site', 'jetpack-waf' ), // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
768                            $help_icon // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
769                        );
770                        ?>
771                    </a>
772            <?php } ?>
773            </div>
774        </body>
775        </html>
776        <?php
777        die( 0 );
778    }
779}