kjell
/
kollapsminoriteten
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
kollapsminoriteten/wp-content/plugins/jetpack/modules/comments/comments.php

718 lines
22 KiB
PHP
Raw Blame History

<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
/**
* Module: Comments
*
* @package automattic/jetpack
*/
require __DIR__ . '/base.php';
use Automattic\Jetpack\Connection\Tokens;
/**
* Main Comments class
*
* @package automattic/jetpack
* @since 1.4
*/
class Jetpack_Comments extends Highlander_Comments_Base {
/** Variables *************************************************************/
/**
* Possible comment form sources - empty array as default
*
* @var array
*/
public $id_sources = array();
/**
* Remote comment URL - empty string as default
*
* @var string
*/
public $signed_url = '';
/**
* The default comment form color scheme - default is light
*
* @var string
* @see ::set_default_color_theme_based_on_theme_settings()
*/
public $default_color_scheme = 'light';
/** Methods ***************************************************************/
/**
* Initialize class
*/
public static function init() {
static $instance = false;
if ( ! $instance ) {
$instance = new Jetpack_Comments();
}
return $instance;
}
/**
* Main constructor for Comments
*
* @since 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 );
}
/**
* Set the default comments color theme based on theme settings
*/
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
*
* This is primarily defining the comment form sources.
*
* @since 1.4
*/
protected function setup_globals() {
parent::setup_globals();
// Sources.
$this->id_sources = array(
'guest',
'jetpack',
'wordpress',
'facebook',
);
}
/**
* Setup actions for methods in this class
*
* @since 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 or Twitter/Facebook.
*
* Leaving the Twitter reference for legacy comments even though support is no longer offered.
*
* @since 1.4
*
* @param string $avatar Current avatar URL.
* @param string $comment Comment for the avatar.
* @param int $size Size of the avatar.
*
* @return string New avatar
*/
public function get_avatar( $avatar, $comment, $size ) {
if ( ! isset( $comment->comment_post_ID ) || ! isset( $comment->comment_ID ) ) {
// it's not a comment - bail.
return $avatar;
}
// Detect whether it's a Facebook 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 Facebook or Twitter avatar.
return preg_replace( '#src=([\'"])[^\'"]+\\1#', 'src=\\1' . esc_url( set_url_scheme( $this->photon_avatar( $foreign_avatar, $size ), 'https' ) ) . '\\1', $avatar );
}
/**
* Get the site's blog token.
* This can be used to bypass Comments entirely if Jetpack is not properly connected.
*
* @since 11.2
*
* @return bool|object False if not properly connected. Object with the blog token if connected.
*/
private function get_blog_token() {
$blog_token = ( new Tokens() )->get_access_token();
// If we have no token, bail.
if ( ! $blog_token || is_wp_error( $blog_token ) ) {
return false;
}
return $blog_token;
}
/** Output Methods ********************************************************/
/**
* Start capturing the core comment_form() output
*
* Comment form output will only be captured if comments are enabled - we return otherwise.
*
* @since 1.4
*/
public function comment_form_before() {
/**
* Filters the setting that determines if Jetpack 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;
}
// If the Jetpack connection is not healthy, bail.
if ( ! $this->get_blog_token() ) {
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 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;
}
$blog_token = $this->get_blog_token();
// If the Jetpack connection is not healthy, bail.
if ( ! $blog_token ) {
return;
}
// Throw it all out and drop in our replacement.
ob_end_clean();
if ( in_array( 'subscriptions', Jetpack::get_active_modules(), true ) ) {
$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' ) ),
'jetpack_comments_nonce' => wp_create_nonce( 'jetpack_comments_nonce-' . get_the_ID() ),
/**
* 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',
/* translators: %s is the displayed username of the post (or comment) author */
__( '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'] );
}
list( $token_key ) = explode( '.', $blog_token->secret, 2 );
// Prophylactic check: anything else should never happen.
if ( $token_key && $token_key !== $blog_token->secret ) {
// Is the token a Special Token (@see class.tokens.php)?
if ( preg_match( '/^;.\d+;\d+;$/', $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'] = Tokens::MAGIC_NORMAL_TOKEN_KEY;
}
}
$signature = self::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 );
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- Sniff misses the esc_url_raw.
$url = "{$url}#parent=" . rawurlencode( esc_url_raw( set_url_scheme( 'http://' . ( isset( $_SERVER['HTTP_HOST'] ) ? wp_unslash( $_SERVER['HTTP_HOST'] ) : '' ) . ( isset( $_SERVER['REQUEST_URI'] ) ? wp_unslash( $_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 = ( 'transparent' === $params['color_scheme'] ) ? 'true' : 'false';
if ( isset( $_GET['replytocom'] ) ) { //phpcs:ignore WordPress.Security.NonceVerification.Recommended
$url .= '&replytocom=' . (int) $_GET['replytocom']; //phpcs:ignore WordPress.Security.NonceVerification.Recommended
}
/**
* 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 );
/**
* Filter the comment title tag.
*
* @module comments
* @since 12.4
*
* @param string $comment_reply_title_tag The comment title tag. Default to h3.
*/
$comment_reply_title_tag = apply_filters( 'jetpack_comment_reply_title_tag', 'h3' );
// The actual iframe (loads comment form from Jetpack server).
$is_amp = class_exists( Jetpack_AMP_Support::class ) && Jetpack_AMP_Support::is_amp_request();
?>
<div id="respond" class="comment-respond">
<?php
if ( true === $show_greeting ) :
printf(
'<%1$s id="reply-title" class="comment-reply-title">',
esc_html( $comment_reply_title_tag )
);
comment_form_title(
esc_html( $params['greeting'] ),
esc_html( $params['greeting_reply'] )
);
echo '<small>';
cancel_comment_reply_link( esc_html__( 'Cancel reply', 'jetpack' ) );
echo '</small>';
printf(
'</%1$s>',
esc_html( $comment_reply_title_tag )
);
endif;
?>
<form id="commentform" class="comment-form">
<iframe
title="<?php esc_attr_e( 'Comment Form', 'jetpack' ); ?>"
src="<?php echo esc_url( $url ); ?>"
<?php if ( $is_amp ) : ?>
resizable
layout="fixed-height"
height="<?php echo esc_attr( $height ); ?>"
<?php else : ?>
name="jetpack_remote_comment"
style="width:100%; height: <?php echo esc_attr( $height ); ?>px; border:0;"
<?php endif; ?>
class="jetpack_remote_comment"
id="jetpack_remote_comment"
sandbox="allow-same-origin allow-top-navigation allow-scripts allow-forms allow-popups"
>
<?php if ( $is_amp ) : ?>
<button overflow><?php esc_html_e( 'Show more', 'jetpack' ); ?></button>
<?php endif; ?>
</iframe>
<?php if ( ! $is_amp ) : ?>
<!--[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 esc_html( $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
*
* If AMP is enabled, we don't make any changes.
*
* @since 1.4
*/
public function watch_comment_parent() {
if ( class_exists( Jetpack_AMP_Support::class ) && Jetpack_AMP_Support::is_amp_request() ) {
// @todo Implement AMP support.
return;
}
?>
<script type="text/javascript">
const iframe = document.getElementById( 'jetpack_remote_comment' );
<?php if ( get_option( 'thread_comments' ) && get_option( 'thread_comments_depth' ) ) : ?>
const watchReply = function() {
// Check addComment._Jetpack_moveForm to make sure we don't monkey-patch twice.
if ( 'undefined' !== typeof addComment && ! addComment._Jetpack_moveForm ) {
// Cache the Core function.
addComment._Jetpack_moveForm = addComment.moveForm;
const commentParent = document.getElementById( 'comment_parent' );
const cancel = document.getElementById( 'cancel-comment-reply-link' );
function tellFrameNewParent ( commentParentValue ) {
const url = new URL( iframe.src );
if ( commentParentValue ) {
url.searchParams.set( 'replytocom', commentParentValue )
} else {
url.searchParams.delete( 'replytocom' );
}
if( iframe.src !== url.href ) {
iframe.src = url.href;
}
};
cancel.addEventListener( 'click', function () {
tellFrameNewParent( false );
} );
addComment.moveForm = function ( _, parentId ) {
tellFrameNewParent( parentId );
return addComment._Jetpack_moveForm.apply( null, arguments );
};
}
}
document.addEventListener( 'DOMContentLoaded', watchReply );
// In WP 6.4+, the script is loaded asynchronously, so we need to wait for it to load before we monkey-patch the functions it introduces.
document.querySelector('#comment-reply-js')?.addEventListener( 'load', watchReply );
<?php endif; ?>
window.addEventListener( 'message', function ( event ) {
if ( event.origin !== 'https://jetpack.wordpress.com' ) {
return;
}
iframe.style.height = event.data + 'px';
});
</script>
<?php
}
/**
* Verify the hash included in remote comments.
*
* If the Jetpack token is missing we return nothing,
* and if the token is unknown or invalid, or comments not allowed, an error is returned.
*
* @since 1.4
*/
public function pre_comment_on_post() {
$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 ( empty( $post_array['jetpack_comments_nonce'] ) || ! wp_verify_nonce( $post_array['jetpack_comments_nonce'], "jetpack_comments_nonce-{$post_array['comment_post_ID']}" ) ) {
wp_die( esc_html__( 'Nonce verification failed.', 'jetpack' ), 400 );
}
if ( str_contains( $post_array['hc_avatar'], '.gravatar.com' ) ) {
$post_array['hc_avatar'] = htmlentities( $post_array['hc_avatar'], ENT_COMPAT );
}
$blog_token = ( new Tokens() )->get_access_token( false, $post_array['token_key'] );
if ( ! $blog_token || is_wp_error( $blog_token ) ) {
wp_die( esc_html__( 'Unknown security token.', 'jetpack' ), 400 );
}
$check = self::sign_remote_comment_parameters( $post_array, $blog_token->secret );
if ( is_wp_error( $check ) ) {
wp_die( esc_html( $check ) );
}
// Bail if token is expired or not valid.
if ( ! hash_equals( $check, $post_array['sig'] ) ) {
wp_die( esc_html__( '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( esc_html__( '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 1.4
*
* @param int $comment_id The comment ID.
*/
public function add_comment_meta( $comment_id ) {
$comment_meta = array();
// phpcs:disable WordPress.Security.NonceVerification.Missing
switch ( $this->is_highlander_comment_post() ) {
case 'facebook':
$comment_meta['hc_post_as'] = 'facebook';
$comment_meta['hc_avatar'] = isset( $_POST['hc_avatar'] ) ? filter_var( wp_unslash( $_POST['hc_avatar'] ) ) : null;
$comment_meta['hc_foreign_user_id'] = isset( $_POST['hc_userid'] ) ? filter_var( wp_unslash( $_POST['hc_userid'] ) ) : null;
break;
// phpcs:ignore WordPress.WP.CapitalPDangit
case 'wordpress':
// phpcs:ignore WordPress.WP.CapitalPDangit
$comment_meta['hc_post_as'] = 'wordpress';
$comment_meta['hc_avatar'] = isset( $_POST['hc_avatar'] ) ? filter_var( wp_unslash( $_POST['hc_avatar'] ) ) : null;
$comment_meta['hc_foreign_user_id'] = isset( $_POST['hc_userid'] ) ? filter_var( wp_unslash( $_POST['hc_userid'] ) ) : null;
$comment_meta['hc_wpcom_id_sig'] = isset( $_POST['hc_wpcom_id_sig'] ) ? filter_var( wp_unslash( $_POST['hc_wpcom_id_sig'] ) ) : null; // since 1.9.
break;
case 'jetpack':
$comment_meta['hc_post_as'] = 'jetpack';
$comment_meta['hc_avatar'] = isset( $_POST['hc_avatar'] ) ? filter_var( wp_unslash( $_POST['hc_avatar'] ) ) : null;
$comment_meta['hc_foreign_user_id'] = isset( $_POST['hc_userid'] ) ? filter_var( wp_unslash( $_POST['hc_userid'] ) ) : null;
break;
}
// phpcs:enable WordPress.Security.NonceVerification.Missing
// 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 );
}
}
/**
* POST the submitted comment to the iframe
*
* @param string $url The comment URL origin.
*/
public function capture_comment_post_redirect_to_reload_parent_frame( $url ) {
if ( ! isset( $_GET['for'] ) || 'jetpack' !== $_GET['for'] ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
return $url;
}
?>
<!DOCTYPE html>
<html <?php language_attributes(); ?>>
<!--<![endif]-->
<head>
<meta charset="<?php bloginfo( 'charset' ); ?>" />
<title>
<?php
wp_kses_post(
printf(
/* translators: %s is replaced by an ellipsis */
__( 'Submitting Comment%s', 'jetpack' ), // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
'&hellip;'
)
);
?>
</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
wp_kses_post(
printf(
/* translators: %s is replaced by HTML markup to include an ellipsis */
__( 'Submitting Comment%s', 'jetpack' ), // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
'<span id="ellipsis" class="hidden">&hellip;</span>'
)
);
?>
</h1>
<script type="text/javascript">
try {
window.parent.location = <?php echo wp_json_encode( $url ); ?>;
window.parent.location.reload(true);
} catch (e) {
window.location = <?php echo wp_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();
Reference in New Issue View Git Blame Copy Permalink