Comments: Ensure that unmoderated comments won't be search indexed.

After a comment is submitted, only allow a brief window where the comment is live on the site.

Props jonkolbert, ayeshrajans, Asif2BD, peterwilsoncc, imath, audrasjb, jonoaldersonwp, whyisjake, SergeyBiryukov.
Merges [47887] and [47889] to the 5.2 branch.
See #49956.
Built from https://develop.svn.wordpress.org/branches/5.2@47917


git-svn-id: http://core.svn.wordpress.org/branches/5.2@47691 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov 2020-06-06 09:59:56 +00:00
parent a0ec22dbda
commit 4f0367ef88
6 changed files with 98 additions and 35 deletions

View File

@ -56,8 +56,8 @@ do_action( 'set_comment_cookies', $comment, $user, $cookies_consent );
$location = empty( $_POST['redirect_to'] ) ? get_comment_link( $comment ) : $_POST['redirect_to'] . '#comment-' . $comment->comment_ID;
// Add specific query arguments to display the awaiting moderation message.
if ( 'unapproved' === wp_get_comment_status( $comment ) && ! empty( $comment->comment_author_email ) ) {
// If user didn't consent to cookies, add specific query arguments to display the awaiting moderation message.
if ( ! $cookies_consent && 'unapproved' === wp_get_comment_status( $comment ) && ! empty( $comment->comment_author_email ) ) {
$location = add_query_arg(
array(
'unapproved' => $comment->comment_ID,

View File

@ -181,7 +181,11 @@ class Walker_Comment extends Walker {
return;
}
if ( ( 'pingback' == $comment->comment_type || 'trackback' == $comment->comment_type ) && $args['short_ping'] ) {
if ( 'comment' === $comment->comment_type ) {
add_filter( 'comment_text', array( $this, 'filter_comment_text' ), 40, 2 );
}
if ( ( 'pingback' === $comment->comment_type || 'trackback' === $comment->comment_type ) && $args['short_ping'] ) {
ob_start();
$this->ping( $comment, $depth, $args );
$output .= ob_get_clean();
@ -194,6 +198,10 @@ class Walker_Comment extends Walker {
$this->comment( $comment, $depth, $args );
$output .= ob_get_clean();
}
if ( 'comment' === $comment->comment_type ) {
remove_filter( 'comment_text', array( $this, 'filter_comment_text' ), 40, 2 );
}
}
/**
@ -244,6 +252,29 @@ class Walker_Comment extends Walker {
<?php
}
/**
* Filters the comment text.
*
* Removes links from the pending comment's text if the commenter did not consent
* to the comment cookies.
*
* @since 5.4.2
*
* @param string $comment_text Text of the current comment.
* @param WP_Comment|null $comment The comment object. Null if not found.
* @return string Filtered text of the current comment.
*/
public function filter_comment_text( $comment_text, $comment ) {
$commenter = wp_get_current_commenter();
$show_pending_links = ! empty( $commenter['comment_author'] );
if ( $comment && '0' == $comment->comment_approved && ! $show_pending_links ) {
$comment_text = wp_kses( $comment_text, array() );
}
return $comment_text;
}
/**
* Outputs a single comment.
*
@ -265,12 +296,13 @@ class Walker_Comment extends Walker {
}
$commenter = wp_get_current_commenter();
$show_pending_links = isset( $commenter['comment_author'] ) && $commenter['comment_author'];
if ( $commenter['comment_author_email'] ) {
$moderation_note = __( 'Your comment is awaiting moderation.' );
} else {
$moderation_note = __( 'Your comment is awaiting moderation. This is a preview, your comment will be visible after it has been approved.' );
}
?>
<<?php echo $tag; ?> <?php comment_class( $this->has_children ? 'parent' : '', $comment ); ?> id="comment-<?php comment_ID(); ?>">
<?php if ( 'div' != $args['style'] ) : ?>
@ -279,13 +311,20 @@ class Walker_Comment extends Walker {
<div class="comment-author vcard">
<?php
if ( 0 != $args['avatar_size'] ) {
echo get_avatar( $comment, $args['avatar_size'] );}
echo get_avatar( $comment, $args['avatar_size'] );
}
?>
<?php
/* translators: %s: comment author link */
$comment_author = get_comment_author_link( $comment );
if ( '0' == $comment->comment_approved && ! $show_pending_links ) {
$comment_author = get_comment_author( $comment );
}
printf(
/* translators: %s: Comment author link. */
__( '%s <span class="says">says:</span>' ),
sprintf( '<cite class="fn">%s</cite>', get_comment_author_link( $comment ) )
sprintf( '<cite class="fn">%s</cite>', $comment_author )
);
?>
</div>
@ -355,12 +394,13 @@ class Walker_Comment extends Walker {
$tag = ( 'div' === $args['style'] ) ? 'div' : 'li';
$commenter = wp_get_current_commenter();
$show_pending_links = ! empty( $commenter['comment_author'] );
if ( $commenter['comment_author_email'] ) {
$moderation_note = __( 'Your comment is awaiting moderation.' );
} else {
$moderation_note = __( 'Your comment is awaiting moderation. This is a preview, your comment will be visible after it has been approved.' );
}
?>
<<?php echo $tag; ?> id="comment-<?php comment_ID(); ?>" <?php comment_class( $this->has_children ? 'parent' : '', $comment ); ?>>
<article id="div-comment-<?php comment_ID(); ?>" class="comment-body">
@ -368,13 +408,20 @@ class Walker_Comment extends Walker {
<div class="comment-author vcard">
<?php
if ( 0 != $args['avatar_size'] ) {
echo get_avatar( $comment, $args['avatar_size'] );}
echo get_avatar( $comment, $args['avatar_size'] );
}
?>
<?php
/* translators: %s: comment author link */
$comment_author = get_comment_author_link( $comment );
if ( '0' == $comment->comment_approved && ! $show_pending_links ) {
$comment_author = get_comment_author( $comment );
}
printf(
/* translators: %s: Comment author link. */
__( '%s <span class="says">says:</span>' ),
sprintf( '<b class="fn">%s</b>', get_comment_author_link( $comment ) )
sprintf( '<b class="fn">%s</b>', $comment_author )
);
?>
</div><!-- .comment-author -->
@ -401,6 +448,7 @@ class Walker_Comment extends Walker {
</div><!-- .comment-content -->
<?php
if ( '1' == $comment->comment_approved || $show_pending_links ) {
comment_reply_link(
array_merge(
$args,
@ -413,6 +461,7 @@ class Walker_Comment extends Walker {
)
)
);
}
?>
</article><!-- .comment-body -->
<?php

View File

@ -527,13 +527,18 @@ class WP_Comment_Query {
// Numeric values are assumed to be user ids.
if ( is_numeric( $unapproved_identifier ) ) {
$approved_clauses[] = $wpdb->prepare( "( user_id = %d AND comment_approved = '0' )", $unapproved_identifier );
// Otherwise we match against email addresses.
} else {
// Otherwise we match against email addresses.
if ( ! empty( $_GET['unapproved'] ) && ! empty( $_GET['moderation-hash'] ) ) {
// Only include requested comment.
$approved_clauses[] = $wpdb->prepare( "( comment_author_email = %s AND comment_approved = '0' AND comment_ID = %d )", $unapproved_identifier, (int) $_GET['unapproved'] );
} else {
// Include all of the author's unapproved comments.
$approved_clauses[] = $wpdb->prepare( "( comment_author_email = %s AND comment_approved = '0' )", $unapproved_identifier );
}
}
}
}
// Collapse comment_approved clauses into a single OR-separated clause.
if ( ! empty( $approved_clauses ) ) {

View File

@ -403,6 +403,10 @@ class WP {
if ( is_user_logged_in() ) {
$headers = array_merge( $headers, wp_get_nocache_headers() );
} elseif ( ! empty( $_GET['unapproved'] ) && ! empty( $_GET['moderation-hash'] ) ) {
// Unmoderated comments are only visible for one minute via the moderation hash.
$headers['Expires'] = gmdate( 'D, d M Y H:i:s', time() + MINUTE_IN_SECONDS );
$headers['Cache-Control'] = 'max-age=60, must-revalidate';
}
if ( ! empty( $this->query_vars['error'] ) ) {
$status = (int) $this->query_vars['error'];

View File

@ -999,7 +999,7 @@ function comment_text( $comment_ID = 0, $args = array() ) {
* @see Walker_Comment::comment()
*
* @param string $comment_text Text of the current comment.
* @param WP_Comment|null $comment The comment object.
* @param WP_Comment|null $comment The comment object. Null if not found.
* @param array $args An array of arguments.
*/
echo apply_filters( 'comment_text', $comment_text, $comment, $args );

View File

@ -1808,9 +1808,14 @@ function wp_get_unapproved_comment_author_email() {
$comment = get_comment( $comment_id );
if ( $comment && hash_equals( $_GET['moderation-hash'], wp_hash( $comment->comment_date_gmt ) ) ) {
// The comment will only be viewable by the comment author for 1 minute.
$comment_preview_expires = strtotime( $comment->comment_date_gmt . '+1 minute' );
if ( time() < $comment_preview_expires ) {
$commenter_email = $comment->comment_author_email;
}
}
}
if ( ! $commenter_email ) {
$commenter = wp_get_current_commenter();