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 ?>