diff options
Diffstat (limited to 'plugins/jetpack/modules/comments/comments.php')
| -rw-r--r-- | plugins/jetpack/modules/comments/comments.php | 626 |
1 files changed, 626 insertions, 0 deletions
diff --git a/plugins/jetpack/modules/comments/comments.php b/plugins/jetpack/modules/comments/comments.php new file mode 100644 index 00000000..f80da0fb --- /dev/null +++ b/plugins/jetpack/modules/comments/comments.php @@ -0,0 +1,626 @@ +<?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' ); + + // 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 = 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'] ); + } + + $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_origin = set_url_scheme( 'http://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 = set_url_scheme( 'http://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'] ) ) { + 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; + + // 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(); |