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Improve inline documentation for wp-trackback.php.

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Props kpdesign.
Fixes #25377.

Built from https://develop.svn.wordpress.org/trunk@25564


git-svn-id: http://core.svn.wordpress.org/trunk@25482 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Drew Jaynes 2013-09-22 18:39:10 +00:00
parent fda48c2462
commit e6d4ece529
1 changed files with 20 additions and 10 deletions
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30
wp-trackback.php
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@ -1,8 +1,11 @@
<?php
/**
* Handle Trackbacks and Pingbacks sent to WordPress
* Handle Trackbacks and Pingbacks Sent to WordPress
*
* @since 0.71
*
* @package WordPress
* @subpackage Trackbacks
*/
if (empty($wp)) {
@ -11,10 +14,15 @@ if (empty($wp)) {
}
/**
* trackback_response() - Respond with an error or success XML message
* Response to a trackback.
*
* @param int|bool $error Whether there was an error
* @param string $error_message Error message if an error occurred
* Responds with an error or success XML message.
*
* @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, $error_message = '') {
header('Content-Type: text/xml; charset=' . get_option('blog_charset') );
@ -33,7 +41,7 @@ function trackback_response($error = 0, $error_message = '') {
}
}
// trackback is done by a POST
// Trackback is done by a POST.
$request_array = 'HTTP_POST_VARS';
if ( !isset($_GET['tb_id']) || !$_GET['tb_id'] ) {
@ -44,7 +52,7 @@ if ( !isset($_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()
// 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($_POST['blog_name']) : '';
@ -54,17 +62,18 @@ if ($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
// 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);
@ -76,7 +85,7 @@ if ( !isset($tb_id) || !intval( $tb_id ) )
trackback_response(1, 'I really need an ID for this to work.');
if (empty($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($tb_id));
exit;
}
@ -110,6 +119,7 @@ if ( !empty($tb_url) && !empty($title) ) {
* 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 );