/** Variables *************************************************************/

/**

public $id_sources = array();

/**

public $signed_url = '';

/**

public $default_color_scheme = 'light';

/** Methods ***************************************************************/

public static function init() {

static $instance = false;

if ( !$instance ) {

$instance = new Jetpack_Comments;

}

return $instance;

}

/**

public function __construct() {

parent::__construct();

// Comments is loaded

/**

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 *******************************************************/

/**

protected function setup_globals() {

parent::setup_globals();

// Sources

$this->id_sources = array(

'guest',

'jetpack',

'wordpress',

'twitter',

'facebook'

);

}

/**

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' ) );

}

/**

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 );

}

/**

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 = 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( $this->photon_avatar( $foreign_avatar, $size ) ) . '\\1', $avatar );

}

/** Output Methods ********************************************************/

/**

public function comment_form_before() {

/**

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();

}

/**

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() ) {

/**

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' ) ),

/**

'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'];

}

/**

$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 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"></iframe>

<!--[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]-->

</form>

</div>

<?php // Below is required for comment reply JS to work ?>

<input type="hidden" name="comment_parent" id="comment_parent" value="" />

<?php

}

/**

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

}

/**

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 **********************************************************/

/**

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>

exit;

}