<?php
/**
- * Handle Trackbacks and Pingbacks sent to WordPress
+ * Handle Trackbacks and Pingbacks Sent to WordPress
+ *
+ * @since 0.71
*
* @package WordPress
+ * @subpackage Trackbacks
*/
if (empty($wp)) {
- require_once('./wp-load.php');
- wp('tb=1');
+ require_once( dirname( __FILE__ ) . '/wp-load.php' );
+ wp( array( 'tb' => '1' ) );
}
/**
- * trackback_response() - Respond with error or success XML message
+ * Response to a trackback.
+ *
+ * Responds with an error or success XML message.
*
- * @param int|bool $error Whether there was an error or not
- * @param string $error_message Error message if an error occurred
+ * @since 0.71
+ *
+ * @param int|bool $error Whether there was an error.
+ * Default '0'. Accepts '0' or '1'.
+ * @param string $error_message Error message if an error occurred.
*/
function trackback_response($error = 0, $error_message = '') {
header('Content-Type: text/xml; charset=' . get_option('blog_charset') );
}
}
-// trackback is done by a POST
+// Trackback is done by a POST.
$request_array = 'HTTP_POST_VARS';
if ( !isset($_GET['tb_id']) || !$_GET['tb_id'] ) {
$tb_url = isset($_POST['url']) ? $_POST['url'] : '';
$charset = isset($_POST['charset']) ? $_POST['charset'] : '';
-// These three are stripslashed here so that they can be properly escaped after mb_convert_encoding()
-$title = isset($_POST['title']) ? stripslashes($_POST['title']) : '';
-$excerpt = isset($_POST['excerpt']) ? stripslashes($_POST['excerpt']) : '';
-$blog_name = isset($_POST['blog_name']) ? stripslashes($_POST['blog_name']) : '';
+// These three are stripslashed here so they can be properly escaped after mb_convert_encoding().
+$title = isset($_POST['title']) ? wp_unslash($_POST['title']) : '';
+$excerpt = isset($_POST['excerpt']) ? wp_unslash($_POST['excerpt']) : '';
+$blog_name = isset($_POST['blog_name']) ? wp_unslash($_POST['blog_name']) : '';
if ($charset)
$charset = str_replace( array(',', ' '), '', strtoupper( trim($charset) ) );
else
$charset = 'ASCII, UTF-8, ISO-8859-1, JIS, EUC-JP, SJIS';
-// No valid uses for UTF-7
+// No valid uses for UTF-7.
if ( false !== strpos($charset, 'UTF-7') )
die;
-if ( function_exists('mb_convert_encoding') ) { // For international trackbacks
+// For international trackbacks.
+if ( function_exists('mb_convert_encoding') ) {
$title = mb_convert_encoding($title, get_option('blog_charset'), $charset);
$excerpt = mb_convert_encoding($excerpt, get_option('blog_charset'), $charset);
$blog_name = mb_convert_encoding($blog_name, get_option('blog_charset'), $charset);
}
-// Now that mb_convert_encoding() has been given a swing, we need to escape these three
-$title = $wpdb->escape($title);
-$excerpt = $wpdb->escape($excerpt);
-$blog_name = $wpdb->escape($blog_name);
+// Now that mb_convert_encoding() has been given a swing, we need to escape these three.
+$title = wp_slash($title);
+$excerpt = wp_slash($excerpt);
+$blog_name = wp_slash($blog_name);
if ( is_single() || is_page() )
$tb_id = $posts[0]->ID;
trackback_response(1, 'I really need an ID for this to work.');
if (empty($title) && empty($tb_url) && empty($blog_name)) {
- // If it doesn't look like a trackback at all...
+ // If it doesn't look like a trackback at all.
wp_redirect(get_permalink($tb_id));
exit;
}
if ( !pings_open($tb_id) )
trackback_response(1, 'Sorry, trackbacks are closed for this item.');
- $title = wp_html_excerpt( $title, 250 ).'...';
- $excerpt = wp_html_excerpt( $excerpt, 252 ).'...';
+ $title = wp_html_excerpt( $title, 250, '…' );
+ $excerpt = wp_html_excerpt( $excerpt, 252, '…' );
$comment_post_ID = (int) $tb_id;
$comment_author = $blog_name;
$commentdata = compact('comment_post_ID', 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content', 'comment_type');
wp_new_comment($commentdata);
-
- do_action('trackback_post', $wpdb->insert_id);
- trackback_response(0);
+ $trackback_id = $wpdb->insert_id;
+
+ /**
+ * Fires after a trackback is added to a post.
+ *
+ * @since 1.2.0
+ *
+ * @param int $trackback_id Trackback ID.
+ */
+ do_action( 'trackback_post', $trackback_id );
+ trackback_response( 0 );
}
-?>
\ No newline at end of file