1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
|
<?php
require dirname( __FILE__ ) . '/base.php';
use Automattic\Jetpack\Connection\Manager as Connection_Manager;
/**
* Main Comments class
*
* @package JetpackComments
* @version 1.4
* @since 1.4
*/
class Jetpack_Comments extends Highlander_Comments_Base {
/** Variables *************************************************************/
/**
* Possible comment form sources
* @var array
*/
public $id_sources = array();
/**
* URL
* @var string
*/
public $signed_url = '';
/**
* The default comment form color scheme
* @var string
* @see ::set_default_color_theme_based_on_theme_settings()
*/
public $default_color_scheme = 'light';
/** Methods ***************************************************************/
public static function init() {
static $instance = false;
if ( ! $instance ) {
$instance = new Jetpack_Comments;
}
return $instance;
}
/**
* Main constructor for Comments
*
* @since JetpackComments (1.4)
*/
public function __construct() {
parent::__construct();
// Comments is loaded
/**
* Fires after the Jetpack_Comments object has been instantiated
*
* @module comments
*
* @since 1.4.0
*
* @param array $jetpack_comments_loaded First element in array of type Jetpack_Comments
**/
do_action_ref_array( 'jetpack_comments_loaded', array( $this ) );
add_action( 'after_setup_theme', array( $this, 'set_default_color_theme_based_on_theme_settings' ), 100 );
}
public function set_default_color_theme_based_on_theme_settings() {
if ( function_exists( 'twentyeleven_get_theme_options' ) ) {
$theme_options = twentyeleven_get_theme_options();
$theme_color_scheme = isset( $theme_options['color_scheme'] ) ? $theme_options['color_scheme'] : 'transparent';
} else {
$theme_color_scheme = get_theme_mod( 'color_scheme', 'transparent' );
}
// Default for $theme_color_scheme is 'transparent' just so it doesn't match 'light' or 'dark'
// The default for Jetpack's color scheme is still defined above as 'light'
if ( false !== stripos( $theme_color_scheme, 'light' ) ) {
$this->default_color_scheme = 'light';
} elseif ( false !== stripos( $theme_color_scheme, 'dark' ) ) {
$this->default_color_scheme = 'dark';
}
}
/** Private Methods *******************************************************/
/**
* Set any global variables or class variables
* @since JetpackComments (1.4)
*/
protected function setup_globals() {
parent::setup_globals();
// Sources
$this->id_sources = array(
'guest',
'jetpack',
'wordpress',
'twitter',
'facebook',
);
}
/**
* Setup actions for methods in this class
* @since JetpackComments (1.4)
*/
protected function setup_actions() {
parent::setup_actions();
// Selfishly remove everything from the existing comment form
remove_all_actions( 'comment_form_before' );
// Selfishly add only our actions back to the comment form
add_action( 'comment_form_before', array( $this, 'comment_form_before' ) );
add_action( 'comment_form_after', array( $this, 'comment_form_after' ), 1 ); // Set very early since we remove everything outputed before our action.
// Before a comment is posted
add_action( 'pre_comment_on_post', array( $this, 'pre_comment_on_post' ), 1 );
// After a comment is posted
add_action( 'comment_post', array( $this, 'add_comment_meta' ) );
}
/**
* Setup filters for methods in this class
* @since 1.6.2
*/
protected function setup_filters() {
parent::setup_filters();
add_filter( 'comment_post_redirect', array( $this, 'capture_comment_post_redirect_to_reload_parent_frame' ), 100 );
add_filter( 'get_avatar', array( $this, 'get_avatar' ), 10, 4 );
}
/**
* Get the comment avatar from Gravatar, Twitter, or Facebook
*
* @since JetpackComments (1.4)
*
* @param string $avatar Current avatar URL
* @param string $comment Comment for the avatar
* @param int $size Size of the avatar
* @param string $default Not used
*
* @return string New avatar
*/
public function get_avatar( $avatar, $comment, $size, $default ) {
if ( ! isset( $comment->comment_post_ID ) || ! isset( $comment->comment_ID ) ) {
// it's not a comment - bail
return $avatar;
}
// Detect whether it's a Facebook or Twitter avatar
$foreign_avatar = get_comment_meta( $comment->comment_ID, 'hc_avatar', true );
$foreign_avatar_hostname = wp_parse_url( $foreign_avatar, PHP_URL_HOST );
if ( ! $foreign_avatar_hostname ||
! preg_match( '/\.?(graph\.facebook\.com|twimg\.com)$/', $foreign_avatar_hostname ) ) {
return $avatar;
}
// Return the FB or Twitter avatar
return preg_replace( '#src=([\'"])[^\'"]+\\1#', 'src=\\1' . esc_url( set_url_scheme( $this->photon_avatar( $foreign_avatar, $size ), 'https' ) ) . '\\1', $avatar );
}
/** Output Methods ********************************************************/
/**
* Start capturing the core comment_form() output
* @since JetpackComments (1.4)
*/
public function comment_form_before() {
/**
* Filters the setting that determines if Jetpagk comments should be enabled for
* the current post type.
*
* @module comments
*
* @since 3.8.1
*
* @param boolean $return Should comments be enabled?
*/
if ( ! apply_filters( 'jetpack_comment_form_enabled_for_' . get_post_type(), true ) ) {
return;
}
// Add some JS to the footer
add_action( 'wp_footer', array( $this, 'watch_comment_parent' ), 100 );
ob_start();
}
/**
* Noop the default comment form output, get some options, and output our
* tricked out totally radical comment form.
*
* @since JetpackComments (1.4)
*/
public function comment_form_after() {
/** This filter is documented in modules/comments/comments.php */
if ( ! apply_filters( 'jetpack_comment_form_enabled_for_' . get_post_type(), true ) ) {
return;
}
// Throw it all out and drop in our replacement
ob_end_clean();
// If users are required to be logged in, and they're not, then we don't need to do anything else
if ( get_option( 'comment_registration' ) && ! is_user_logged_in() ) {
/**
* Changes the log in to comment prompt.
*
* @module comments
*
* @since 1.4.0
*
* @param string $var Default is "You must log in to post a comment."
*/
echo '<p class="must-log-in">' . sprintf( apply_filters( 'jetpack_must_log_in_to_comment', __( 'You must <a href="%s">log in</a> to post a comment.', 'jetpack' ) ), wp_login_url( get_permalink() . '#respond' ) ) . '</p>';
return;
}
if ( in_array( 'subscriptions', Jetpack::get_active_modules() ) ) {
$stb_enabled = get_option( 'stb_enabled', 1 );
$stb_enabled = empty( $stb_enabled ) ? 0 : 1;
$stc_enabled = get_option( 'stc_enabled', 1 );
$stc_enabled = empty( $stc_enabled ) ? 0 : 1;
} else {
$stb_enabled = 0;
$stc_enabled = 0;
}
$params = array(
'blogid' => Jetpack_Options::get_option( 'id' ),
'postid' => get_the_ID(),
'comment_registration' => ( get_option( 'comment_registration' ) ? '1' : '0' ), // Need to explicitly send a '1' or a '0' for these
'require_name_email' => ( get_option( 'require_name_email' ) ? '1' : '0' ),
'stc_enabled' => $stc_enabled,
'stb_enabled' => $stb_enabled,
'show_avatars' => ( get_option( 'show_avatars' ) ? '1' : '0' ),
'avatar_default' => get_option( 'avatar_default' ),
'greeting' => get_option( 'highlander_comment_form_prompt', __( 'Leave a Reply', 'jetpack' ) ),
/**
* Changes the comment form prompt.
*
* @module comments
*
* @since 2.3.0
*
* @param string $var Default is "Leave a Reply to %s."
*/
'greeting_reply' => apply_filters( 'jetpack_comment_form_prompt_reply', __( 'Leave a Reply to %s', 'jetpack' ) ),
'color_scheme' => get_option( 'jetpack_comment_form_color_scheme', $this->default_color_scheme ),
'lang' => get_locale(),
'jetpack_version' => JETPACK__VERSION,
);
// Extra parameters for logged in user
if ( is_user_logged_in() ) {
$current_user = wp_get_current_user();
$params['hc_post_as'] = 'jetpack';
$params['hc_userid'] = $current_user->ID;
$params['hc_username'] = $current_user->display_name;
$params['hc_userurl'] = $current_user->user_url;
$params['hc_useremail'] = md5( strtolower( trim( $current_user->user_email ) ) );
if ( current_user_can( 'unfiltered_html' ) ) {
$params['_wp_unfiltered_html_comment'] = wp_create_nonce( 'unfiltered-html-comment_' . get_the_ID() );
}
} else {
$commenter = wp_get_current_commenter();
$params['show_cookie_consent'] = (int) has_action( 'set_comment_cookies', 'wp_set_comment_cookies' );
$params['has_cookie_consent'] = (int) ! empty( $commenter['comment_author_email'] );
}
$blog_token = Jetpack_Data::get_access_token();
list( $token_key ) = explode( '.', $blog_token->secret, 2 );
// Prophylactic check: anything else should never happen.
if ( $token_key && $token_key !== $blog_token->secret ) {
// Is the token a Special Token (@see class.jetpack-data.php)?
if ( preg_match( '/^;.\d+;\d+;$/', $token_key, $matches ) ) {
// The token key for a Special Token is public.
$params['token_key'] = $token_key;
} else {
/*
* The token key for a Normal Token is public but
* looks like sensitive data. Since there can only be
* one Normal Token per site, avoid concern by
* sending the magic "use the Normal Token" token key.
*/
$params['token_key'] = Connection_Manager::MAGIC_NORMAL_TOKEN_KEY;
}
}
$signature = Jetpack_Comments::sign_remote_comment_parameters( $params, $blog_token->secret );
if ( is_wp_error( $signature ) ) {
$signature = 'error';
}
$params['sig'] = $signature;
$url_origin = 'https://jetpack.wordpress.com';
$url = "{$url_origin}/jetpack-comment/?" . http_build_query( $params );
$url = "{$url}#parent=" . urlencode( set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ) );
$this->signed_url = $url;
$height = $params['comment_registration'] || is_user_logged_in() ? '315' : '430'; // Iframe can be shorter if we're not allowing guest commenting
$transparent = ( $params['color_scheme'] == 'transparent' ) ? 'true' : 'false';
if ( isset( $_GET['replytocom'] ) ) {
$url .= '&replytocom=' . (int) $_GET['replytocom'];
}
/**
* Filter whether the comment title can be displayed.
*
* @module comments
*
* @since 4.7.0
*
* @param bool $show Can the comment be displayed? Default to true.
*/
$show_greeting = apply_filters( 'jetpack_comment_form_display_greeting', true );
// The actual iframe (loads comment form from Jetpack server)
?>
<div id="respond" class="comment-respond">
<?php if ( true === $show_greeting ) : ?>
<h3 id="reply-title" class="comment-reply-title"><?php comment_form_title( esc_html( $params['greeting'] ), esc_html( $params['greeting_reply'] ) ); ?>
<small><?php cancel_comment_reply_link( esc_html__( 'Cancel reply', 'jetpack' ) ); ?></small>
</h3>
<?php endif; ?>
<form id="commentform" class="comment-form">
<iframe title="<?php esc_attr_e( 'Comment Form', 'jetpack' ); ?>" src="<?php echo esc_url( $url ); ?>" style="width:100%; height: <?php echo $height; ?>px; border:0;" name="jetpack_remote_comment" class="jetpack_remote_comment" id="jetpack_remote_comment" sandbox="allow-same-origin allow-top-navigation allow-scripts allow-forms allow-popups"></iframe>
<?php if ( ! Jetpack_AMP_Support::is_amp_request() ) : ?>
<!--[if !IE]><!-->
<script>
document.addEventListener('DOMContentLoaded', function () {
var commentForms = document.getElementsByClassName('jetpack_remote_comment');
for (var i = 0; i < commentForms.length; i++) {
commentForms[i].allowTransparency = <?php echo $transparent; ?>;
commentForms[i].scrolling = 'no';
}
});
</script>
<!--<![endif]-->
<?php endif; ?>
</form>
</div>
<?php // Below is required for comment reply JS to work ?>
<input type="hidden" name="comment_parent" id="comment_parent" value="" />
<?php
}
/**
* Add some JS to wp_footer to watch for hierarchical reply parent change
*
* @since JetpackComments (1.4)
*/
public function watch_comment_parent() {
$url_origin = 'https://jetpack.wordpress.com';
?>
<!--[if IE]>
<script type="text/javascript">
if ( 0 === window.location.hash.indexOf( '#comment-' ) ) {
// window.location.reload() doesn't respect the Hash in IE
window.location.hash = window.location.hash;
}
</script>
<![endif]-->
<script type="text/javascript">
(function () {
var comm_par_el = document.getElementById( 'comment_parent' ),
comm_par = ( comm_par_el && comm_par_el.value ) ? comm_par_el.value : '',
frame = document.getElementById( 'jetpack_remote_comment' ),
tellFrameNewParent;
tellFrameNewParent = function () {
if ( comm_par ) {
frame.src = "<?php echo esc_url_raw( $this->signed_url ); ?>" + '&replytocom=' + parseInt( comm_par, 10 ).toString();
} else {
frame.src = "<?php echo esc_url_raw( $this->signed_url ); ?>";
}
};
<?php if ( get_option( 'thread_comments' ) && get_option( 'thread_comments_depth' ) ) : ?>
if ( 'undefined' !== typeof addComment ) {
addComment._Jetpack_moveForm = addComment.moveForm;
addComment.moveForm = function ( commId, parentId, respondId, postId ) {
var returnValue = addComment._Jetpack_moveForm( commId, parentId, respondId, postId ),
cancelClick, cancel;
if ( false === returnValue ) {
cancel = document.getElementById( 'cancel-comment-reply-link' );
cancelClick = cancel.onclick;
cancel.onclick = function () {
var cancelReturn = cancelClick.call( this );
if ( false !== cancelReturn ) {
return cancelReturn;
}
if ( ! comm_par ) {
return cancelReturn;
}
comm_par = 0;
tellFrameNewParent();
return cancelReturn;
};
}
if ( comm_par == parentId ) {
return returnValue;
}
comm_par = parentId;
tellFrameNewParent();
return returnValue;
};
}
<?php endif; ?>
// Do the post message bit after the dom has loaded.
document.addEventListener( 'DOMContentLoaded', function () {
var iframe_url = <?php echo json_encode( esc_url_raw( $url_origin ) ); ?>;
if ( window.postMessage ) {
if ( document.addEventListener ) {
window.addEventListener( 'message', function ( event ) {
var origin = event.origin.replace( /^http:\/\//i, 'https://' );
if ( iframe_url.replace( /^http:\/\//i, 'https://' ) !== origin ) {
return;
}
jQuery( frame ).height( event.data );
});
} else if ( document.attachEvent ) {
window.attachEvent( 'message', function ( event ) {
var origin = event.origin.replace( /^http:\/\//i, 'https://' );
if ( iframe_url.replace( /^http:\/\//i, 'https://' ) !== origin ) {
return;
}
jQuery( frame ).height( event.data );
});
}
}
})
})();
</script>
<?php
}
/**
* Verify the hash included in remote comments.
*
* @since JetpackComments (1.4)
*
* @param type $comment Not used
*/
public function pre_comment_on_post( $comment ) {
$post_array = stripslashes_deep( $_POST );
// Bail if missing the Jetpack token
if ( ! isset( $post_array['sig'] ) || ! isset( $post_array['token_key'] ) ) {
unset( $_POST['hc_post_as'] );
return;
}
if ( false !== strpos( $post_array['hc_avatar'], '.gravatar.com' ) ) {
$post_array['hc_avatar'] = htmlentities( $post_array['hc_avatar'] );
}
$blog_token = Jetpack_Data::get_access_token( false, $post_array['token_key'] );
if ( ! $blog_token ) {
wp_die( __( 'Unknown security token.', 'jetpack' ), 400 );
}
$check = Jetpack_Comments::sign_remote_comment_parameters( $post_array, $blog_token->secret );
if ( is_wp_error( $check ) ) {
wp_die( $check );
}
// Bail if token is expired or not valid
if ( ! hash_equals( $check, $post_array['sig'] ) ) {
wp_die( __( 'Invalid security token.', 'jetpack' ), 400 );
}
/** This filter is documented in modules/comments/comments.php */
if ( ! apply_filters( 'jetpack_comment_form_enabled_for_' . get_post_type( $post_array['comment_post_ID'] ), true ) ) {
// In case the comment POST is legit, but the comments are
// now disabled, we don't allow the comment
wp_die( __( 'Comments are not allowed.', 'jetpack' ), 403 );
}
}
/** Capabilities **********************************************************/
/**
* Add some additional comment meta after comment is saved about what
* service the comment is from, the avatar, user_id, etc...
*
* @since JetpackComments (1.4)
*
* @param type $comment_id
*/
public function add_comment_meta( $comment_id ) {
$comment_meta = array();
switch ( $this->is_highlander_comment_post() ) {
case 'facebook':
$comment_meta['hc_post_as'] = 'facebook';
$comment_meta['hc_avatar'] = stripslashes( $_POST['hc_avatar'] );
$comment_meta['hc_foreign_user_id'] = stripslashes( $_POST['hc_userid'] );
break;
case 'twitter':
$comment_meta['hc_post_as'] = 'twitter';
$comment_meta['hc_avatar'] = stripslashes( $_POST['hc_avatar'] );
$comment_meta['hc_foreign_user_id'] = stripslashes( $_POST['hc_userid'] );
break;
// phpcs:ignore WordPress.WP.CapitalPDangit
case 'wordpress':
// phpcs:ignore WordPress.WP.CapitalPDangit
$comment_meta['hc_post_as'] = 'wordpress';
$comment_meta['hc_avatar'] = stripslashes( $_POST['hc_avatar'] );
$comment_meta['hc_foreign_user_id'] = stripslashes( $_POST['hc_userid'] );
$comment_meta['hc_wpcom_id_sig'] = stripslashes( $_POST['hc_wpcom_id_sig'] ); //since 1.9
break;
case 'jetpack':
$comment_meta['hc_post_as'] = 'jetpack';
$comment_meta['hc_avatar'] = stripslashes( $_POST['hc_avatar'] );
$comment_meta['hc_foreign_user_id'] = stripslashes( $_POST['hc_userid'] );
break;
}
// Bail if no extra comment meta
if ( empty( $comment_meta ) ) {
return;
}
// Loop through extra meta and add values
foreach ( $comment_meta as $key => $value ) {
add_comment_meta( $comment_id, $key, $value, true );
}
}
function capture_comment_post_redirect_to_reload_parent_frame( $url ) {
if ( ! isset( $_GET['for'] ) || 'jetpack' != $_GET['for'] ) {
return $url;
}
?>
<!DOCTYPE html>
<html <?php language_attributes(); ?>>
<!--<![endif]-->
<head>
<meta charset="<?php bloginfo( 'charset' ); ?>" />
<title><?php printf( __( 'Submitting Comment%s', 'jetpack' ), '…' ); ?></title>
<style type="text/css">
body {
display: table;
width: 100%;
height: 60%;
position: absolute;
top: 0;
left: 0;
overflow: hidden;
color: #333;
}
h1 {
text-align: center;
margin: 0;
padding: 0;
display: table-cell;
vertical-align: middle;
font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", sans-serif;
font-weight: normal;
}
.hidden {
opacity: 0;
}
h1 span {
-moz-transition-property: opacity;
-moz-transition-duration: 1s;
-moz-transition-timing-function: ease-in-out;
-webkit-transition-property: opacity;
-webkit-transition-duration: 1s;
-webbit-transition-timing-function: ease-in-out;
-o-transition-property: opacity;
-o-transition-duration: 1s;
-o-transition-timing-function: ease-in-out;
-ms-transition-property: opacity;
-ms-transition-duration: 1s;
-ms-transition-timing-function: ease-in-out;
transition-property: opacity;
transition-duration: 1s;
transition-timing-function: ease-in-out;
}
</style>
</head>
<body>
<h1><?php printf( __( 'Submitting Comment%s', 'jetpack' ), '<span id="ellipsis" class="hidden">…</span>' ); ?></h1>
<script type="text/javascript">
try {
window.parent.location = <?php echo json_encode( $url ); ?>;
window.parent.location.reload(true);
} catch (e) {
window.location = <?php echo json_encode( $url ); ?>;
window.location.reload(true);
}
ellipsis = document.getElementById('ellipsis');
function toggleEllipsis() {
ellipsis.className = ellipsis.className ? '' : 'hidden';
}
setInterval(toggleEllipsis, 1200);
</script>
</body>
</html>
<?php
exit;
}
}
Jetpack_Comments::init();
|