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Omphaloskepsis/plugins/jetpack/modules/comments/comments.php

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2018-03-21 18:19:20 +00:00
<?php
require dirname( __FILE__ ) . '/base.php';
/**
* 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' );
remove_all_actions( 'comment_form_after' );
// 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' ) );
// 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;
}
if ( false === strpos( $comment->comment_author_url, '/www.facebook.com/' ) && false === strpos( $comment->comment_author_url, '/twitter.com/' ) ) {
// It's neither FB nor Twitter - bail
return $avatar;
}
// It's a FB or Twitter avatar
$foreign_avatar = get_comment_meta( $comment->comment_ID, 'hc_avatar', true );
if ( empty( $foreign_avatar ) ) {
// Can't find the avatar details - bail
return $avatar;
}
// Return the FB or Twitter avatar
return preg_replace( '#src=([\'"])[^\'"]+\\1#', 'src=\\1' . esc_url( $this->photon_avatar( $foreign_avatar, $size ) ) . '\\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() );
}
$signature = Jetpack_Comments::sign_remote_comment_parameters( $params, Jetpack_Options::get_option( 'blog_token' ) );
if ( is_wp_error( $signature ) ) {
$signature = 'error';
}
$params['sig'] = $signature;
$url = "https://jetpack.wordpress.com/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'];
}
// The actual iframe (loads comment form from Jetpack server)
?>
<div id="respond" class="comment-respond">
<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>
<form id="commentform" class="comment-form">
<iframe src="<?php echo esc_url( $url ); ?>" allowtransparency="<?php echo $transparent; ?>" style="width:100%; height: <?php echo $height; ?>px;border:0;" frameBorder="0" scrolling="no" name="jetpack_remote_comment" id="jetpack_remote_comment"></iframe>
</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">
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; ?>
if ( window.postMessage ) {
if ( document.addEventListener ) {
window.addEventListener( 'message', function( event ) {
if ( <?php echo json_encode( esc_url_raw( $url_origin ) ); ?> !== event.origin ) {
return;
}
jQuery( frame ).height( event.data );
} );
} else if ( document.attachEvent ) {
window.attachEvent( 'message', function( event ) {
if ( <?php echo json_encode( esc_url_raw( $url_origin ) ); ?> !== event.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'] ) ) {
unset( $_POST['hc_post_as'] );
return;
}
if ( FALSE !== strpos( $post_array['hc_avatar'], '.gravatar.com' ) )
$post_array['hc_avatar'] = htmlentities( $post_array['hc_avatar'] );
$check = Jetpack_Comments::sign_remote_comment_parameters( $post_array, Jetpack_Options::get_option( 'blog_token' ) );
if ( is_wp_error( $check ) ) {
wp_die( $check );
}
// Bail if token is expired or not valid
if ( $check !== $post_array['sig'] )
wp_die( __( 'Invalid security token.', 'jetpack' ) );
/** 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' ) );
}
}
/** 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;
case 'wordpress' :
$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' ), '&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 printf( __( 'Submitting Comment%s', 'jetpack' ), '<span id="ellipsis" class="hidden">&hellip;</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();