WordPressのNginx Proxy Cache Purgeプラグイン改造版。

nginx_proxy_cache_purge.php

<?php
/*
Plugin Name: Nginx Proxy Cache Purge
Plugin URI: http://wpselect.com/
Description: Purges the nginx proxy cache when you publish or update a post or page.
Version: 0.9.6
Author: John Levandowski
Author URI: http://wpselect.com/
*/

function wpselect_cache($post_id) {
#post/page purge url
$link = get_permalink($post_id);
$parse = parse_url($link);

$page_urls = array(
    $post_url = 'http://'.$parse[host].'/purge'.$parse[path],
    $post_url_ssl = 'https://'.$parse[host].'/purge'.$parse[path],

    $post_url_sp = 'http://'.$parse[host].'/pg_s'.$parse[path],
    $post_url_sp_ssl = 'https://'.$parse[host].'/pg_s'.$parse[path],

    $post_url_ft = 'http://'.$parse[host].'/pg_f'.$parse[path],
    $post_url_ft_ssl = 'https://'.$parse[host].'/pg_f'.$parse[path],
);

$comment_urls = array();
foreach($page_urls as $url){
    $comment_urls[] = $url ."/comment-page-1";
}

#home page purge url
$home_page = home_url();
$parse_home = parse_url($home_page);
$home_page_url = $parse[scheme].'://'.$parse[host].'/purge';
if ($parse_home[path] != '') { 
	$home_page_url = $home_page_url.$parse_home[path].'/';
} else $home_page_url = $home_page_url.'/';

#posts page purge url
if ( get_option('show_on_front') == 'page' ) {
$posts_page = get_option('page_for_posts');
$posts_page_link = get_permalink($posts_page);
$parse_posts = parse_url($posts_page_link);
$posts_url = $parse_posts[scheme].'://'.$parse_posts[host].'/purge'.$parse_posts[path];
} ;

#feed purge url
$feed_url = $home_page_url.'feed/';

#comments feed purge url
$comments_feed_url = $home_page_url.'comments/feed/';

#array of purge urls
$etc_urls = array(
	$home_page_url,
	$feed_url,
	$comments_feed_url,
	$posts_url
);

$urls   = array_merge($page_urls, $comment_urls, $etc_urls);

#remove duplicate purge urls
$urls_unique = array_unique($urls);
foreach ($urls_unique as $uri) {
	wp_remote_get($uri);
};
}

add_action('edit_post', 'wpselect_cache');

function wpselect_footer() {
	$content = '<!-- Page created in ';
	$content .= timer_stop($display = 0, $precision = 2);
	$content .= ' seconds from ';
	$content .= get_num_queries();
	$content .= ' queries on ';
	$content .= date('m.d.y \@ H:i:s T');
	$content .= ' -->';
	echo $content;
}

add_action('wp_footer', 'wpselect_footer');
?>