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Allow for the HTTP headers returned by WordPress to be filtered by a plugin. Fixes #9205 props filosofo.

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git-svn-id: https://develop.svn.wordpress.org/trunk@10619 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Peter Westwood
2009-02-21 21:39:06 +00:00
parent cc6baace8f
commit 271e0f7742
2 changed files with 43 additions and 15 deletions
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28
wp-includes/classes.php
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@@ -302,16 +302,17 @@ class WP {
* @since 2.0.0
*/
function send_headers() {
@header('X-Pingback: '. get_bloginfo('pingback_url'));
$headers = array('X-Pingback' => get_bloginfo('pingback_url'));
$status = null;
if ( is_user_logged_in() )
nocache_headers();
$headers = array_merge($headers, wp_get_nocache_headers());
if ( !empty($this->query_vars['error']) && '404' == $this->query_vars['error'] ) {
status_header( 404 );
$status = 404;
if ( !is_user_logged_in() )
nocache_headers();
@header('Content-Type: ' . get_option('html_type') . '; charset=' . get_option('blog_charset'));
$headers = array_merge($headers, wp_get_nocache_headers());
$headers['Content-Type'] = get_option('html_type') . '; charset=' . get_option('blog_charset');
} else if ( empty($this->query_vars['feed']) ) {
@header('Content-Type: ' . get_option('html_type') . '; charset=' . get_option('blog_charset'));
$headers['Content-Type'] = get_option('html_type') . '; charset=' . get_option('blog_charset');
} else {
// We're showing a feed, so WP is indeed the only thing that last changed
if ( !empty($this->query_vars['withcomments'])
@@ -329,8 +330,8 @@ class WP {
else
$wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' GMT';
$wp_etag = '"' . md5($wp_last_modified) . '"';
@header("Last-Modified: $wp_last_modified");
@header("ETag: $wp_etag");
$headers['Last-Modified'] = $wp_last_modified;
$headers['ETag'] = $wp_etag;
// Support for Conditional GET
if (isset($_SERVER['HTTP_IF_NONE_MATCH']))
@@ -347,11 +348,18 @@ class WP {
if ( ($client_last_modified && $client_etag) ?
(($client_modified_timestamp >= $wp_modified_timestamp) && ($client_etag == $wp_etag)) :
(($client_modified_timestamp >= $wp_modified_timestamp) || ($client_etag == $wp_etag)) ) {
status_header( 304 );
exit;
$status = 304;
add_action('send_headers', 'exit', 1);
}
}
$headers = apply_filters('wp_headers', $headers, $this);
if ( ! empty( $status ) )
status_header( $status );
foreach( (array) $headers as $name => $field_value )
@header("{$name}: {$field_value}");
do_action_ref_array('send_headers', array(&$this));
}