wp-comments-post.php

   1 <?php
   2 /**
   3  * Handles Comment Post to WordPress and prevents duplicate comment posting.
   4  *
   5  * @package WordPress
   6  */
   7
   8 if ( 'POST' != $_SERVER['REQUEST_METHOD'] ) {
   9         header('Allow: POST');
  10         header('HTTP/1.1 405 Method Not Allowed');
  11         header('Content-Type: text/plain');
  12         exit;
  13 }
  14
  15 /** Sets up the WordPress Environment. */
  16 require( dirname(__FILE__) . '/wp-load.php' );
  17
  18 nocache_headers();
  19
  20 $comment_post_ID = isset($_POST['comment_post_ID']) ? (int) $_POST['comment_post_ID'] : 0;
  21
  22 $status = $wpdb->get_row( $wpdb->prepare("SELECT post_status, comment_status FROM $wpdb->posts WHERE ID = %d", $comment_post_ID) );
  23
  24 if ( empty($status->comment_status) ) {
  25         do_action('comment_id_not_found', $comment_post_ID);
  26         exit;
  27 } elseif ( !comments_open($comment_post_ID) ) {
  28         do_action('comment_closed', $comment_post_ID);
  29         wp_die( __('Sorry, comments are closed for this item.') );
  30 } elseif ( in_array($status->post_status, array('draft', 'future', 'pending') ) ) {
  31         do_action('comment_on_draft', $comment_post_ID);
  32         exit;
  33 } elseif ( 'trash' == $status->post_status ) {
  34         do_action('comment_on_trash', $comment_post_ID);
  35         exit;
  36 } elseif ( post_password_required($comment_post_ID) ) {
  37         do_action('comment_on_password_protected', $comment_post_ID);
  38         exit;
  39 } else {
  40         do_action('pre_comment_on_post', $comment_post_ID);
  41 }
  42
  43 $comment_author       = ( isset($_POST['author']) )  ? trim(strip_tags($_POST['author'])) : null;
  44 $comment_author_email = ( isset($_POST['email']) )   ? trim($_POST['email']) : null;
  45 $comment_author_url   = ( isset($_POST['url']) )     ? trim($_POST['url']) : null;
  46 $comment_content      = ( isset($_POST['comment']) ) ? trim($_POST['comment']) : null;
  47
  48 // If the user is logged in
  49 $user = wp_get_current_user();
  50 if ( $user->ID ) {
  51         if ( empty( $user->display_name ) )
  52                 $user->display_name=$user->user_login;
  53         $comment_author       = $wpdb->escape($user->display_name);
  54         $comment_author_email = $wpdb->escape($user->user_email);
  55         $comment_author_url   = $wpdb->escape($user->user_url);
  56         if ( current_user_can('unfiltered_html') ) {
  57                 if ( wp_create_nonce('unfiltered-html-comment_' . $comment_post_ID) != $_POST['_wp_unfiltered_html_comment'] ) {
  58                         kses_remove_filters(); // start with a clean slate
  59                         kses_init_filters(); // set up the filters
  60                 }
  61         }
  62 } else {
  63         if ( get_option('comment_registration') || 'private' == $status->post_status )
  64                 wp_die( __('Sorry, you must be logged in to post a comment.') );
  65 }
  66
  67 $comment_type = '';
  68
  69 if ( get_option('require_name_email') && !$user->ID ) {
  70         if ( 6 > strlen($comment_author_email) || '' == $comment_author )
  71                 wp_die( __('Error: please fill the required fields (name, email).') );
  72         elseif ( !is_email($comment_author_email))
  73                 wp_die( __('Error: please enter a valid email address.') );
  74 }
  75
  76 if ( '' == $comment_content )
  77         wp_die( __('Error: please type a comment.') );
  78
  79 $comment_parent = isset($_POST['comment_parent']) ? absint($_POST['comment_parent']) : 0;
  80
  81 $commentdata = compact('comment_post_ID', 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content', 'comment_type', 'comment_parent', 'user_ID');
  82
  83 $comment_id = wp_new_comment( $commentdata );
  84
  85 $comment = get_comment($comment_id);
  86 if ( !$user->ID ) {
  87         $comment_cookie_lifetime = apply_filters('comment_cookie_lifetime', 30000000);
  88         setcookie('comment_author_' . COOKIEHASH, $comment->comment_author, time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN);
  89         setcookie('comment_author_email_' . COOKIEHASH, $comment->comment_author_email, time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN);
  90         setcookie('comment_author_url_' . COOKIEHASH, esc_url($comment->comment_author_url), time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN);
  91 }
  92
  93 $location = empty($_POST['redirect_to']) ? get_comment_link($comment_id) : $_POST['redirect_to'] . '#comment-' . $comment_id;
  94 $location = apply_filters('comment_post_redirect', $location, $comment);
  95
  96 wp_redirect($location);
  97
  98 ?>