Hello,
I added purges for the following pages to your plugin ::
posts
purge archives (http://domain/YYYY,http://domain/YYYY/MM)
purge categories
plus I added support for a plugin called WordPress-Recent-Comments and another one called ajax-calendar.
I will send another version soon that purges all the blog when comment is added and plugin recent comments is activated (I know that this widget should be done with esi or ajax, but as this is not standard, your plugin should add support for that)
Here is the modified wp-varnish.php :
<?php
/*
Plugin Name: WordPress Varnish
Plugin URI: http://github.com/pkhamre/wp-varnish
Version: 0.3
Author: <a href="http://github.com/pkhamre/">Pål-Kristian Hamre</a>
Description: A plugin for purging Varnish cache when content is published or edited.
Copyright 2010 Pål-Kristian Hamre (email : post_at_pkhamre_dot_com)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
class WPVarnish {
public $wpv_addr_optname;
public $wpv_port_optname;
public $wpv_timeout_optname;
public $wpv_update_pagenavi_optname;
public $wpv_update_commentnavi_optname;
function WPVarnish() {
global $post;
$this->wpv_addr_optname = "wpvarnish_addr";
$this->wpv_port_optname = "wpvarnish_port";
$this->wpv_timeout_optname = "wpvarnish_timeout";
$this->wpv_update_pagenavi_optname = "wpvarnish_update_pagenavi";
$this->wpv_update_commentnavi_optname = "wpvarnish_update_commentnavi";
$wpv_addr_optval = array ("127.0.0.1");
$wpv_port_optval = array (80);
$wpv_timeout_optval = 5;
$wpv_update_pagenavi_optval = 0;
$wpv_update_commentnavi_optval = 0;
if ( (get_option($this->wpv_addr_optname) == FALSE) ) {
add_option($this->wpv_addr_optname, $wpv_addr_optval, '', 'yes');
}
if ( (get_option($this->wpv_port_optname) == FALSE) ) {
add_option($this->wpv_port_optname, $wpv_port_optval, '', 'yes');
}
if ( (get_option($this->wpv_timeout_optname) == FALSE) ) {
add_option($this->wpv_timeout_optname, $wpv_timeout_optval, '', 'yes');
}
if ( (get_option($this->wpv_update_pagenavi_optname) == FALSE) ) {
add_option($this->wpv_update_pagenavi_optname, $wpv_update_pagenavi_optval, '', 'yes');
}
if ( (get_option($this->wpv_update_commentnavi_optname) == FALSE) ) {
add_option($this->wpv_update_commentnavi_optname, $wpv_update_commentnavi_optval, '', 'yes');
}
// Localization init
add_action('init', array(&$this, 'WPVarnishLocalization'));
// Add Administration Interface
add_action('admin_menu', array(&$this, 'WPVarnishAdminMenu'));
// When posts/pages are published, edited or deleted
add_action('edit_post', array(&$this, 'WPVarnishPurgePost'), 99);
add_action('edit_post', array(&$this, 'WPVarnishPurgePostDependencies'), 99);
// When comments are made, edited or deleted
add_action('comment_post', array(&$this, 'WPVarnishPurgePostComments'),99);
add_action('edit_comment', array(&$this, 'WPVarnishPurgePostComments'),99);
add_action('trashed_comment', array(&$this, 'WPVarnishPurgePostComments'),99);
add_action('untrashed_comment', array(&$this, 'WPVarnishPurgePostComments'),99);
add_action('deleted_comment', array(&$this, 'WPVarnishPurgePostComments'),99);
if ( array_key_exists('WordPress-Recent-Comments/wordpress-recent-comments.php', get_site_option( 'active_sitewide_plugins') )){
add_action('comment_post', array(&$this, 'WPVarnishPurgePostComments'),99);
add_action('edit_comment', array(&$this, 'WPVarnishPurgePostComments'),99);
add_action('trashed_comment', array(&$this, 'WPVarnishPurgePostComments'),99);
add_action('untrashed_comment', array(&$this, 'WPVarnishPurgePostComments'),99);
add_action('deleted_comment', array(&$this, 'WPVarnishPurgePostComments'),99);
}
// When posts or pages are deleted
add_action('deleted_post', array(&$this, 'WPVarnishPurgePost'), 99);
add_action('deleted_post', array(&$this, 'WPVarnishPurgePostDependencies'), 99);
}
function WPVarnishLocalization() {
load_plugin_textdomain('wp-varnish',false,'wp-varnish/lang');
}
// ODU
function WPVarnishPurgePostDependencies($wpv_postid){
$this->WPVarnishPurgeCommonObjects($wpv_postid);
//ODU Purge categories
$this->WPVarnishPurgeCategories($wpv_postid);
// Purges Archives
$this->WPVarnishPurgeArchives($wpv_postid);
// ODU Plugin ajax-calendar http://wordpress.org/extend/plugins/ajax-calendar/
if ( array_key_exists('ajax-calendar/ajax-calendar.php', get_site_option( 'active_sitewide_plugins') )){
$this->WPVarnishPurgeAjaxCalendar($wpv_postid);
}
}
// ODU
function WPVarnishPurgeCategories($wpv_postid){
$list=get_the_category($wpv_postid);
foreach($list as $categoryObject){
$this->WPVarnishPurgeObject(str_replace(get_bloginfo('wpurl'),"",get_category_link($categoryObject->cat_ID)));
}
}
// ODU
function WPVarnishPurgeArchives($wpv_postid){
$day=str_replace(get_bloginfo('wpurl'),"",get_day_link(get_post_time('Y',false,$wpv_postid), get_post_time('m',true,$wpv_postid),get_post_time('d',true,$wpv_postid)));
$month=str_replace(get_bloginfo('wpurl'),"",get_month_link(get_post_time('Y',false,$wpv_postid), get_post_time('m',true,$wpv_postid)));
$year=str_replace(get_bloginfo('wpurl'),"",get_year_link(get_post_time('Y',false,$wpv_postid)));
$this->WPVarnishPurgeObject($day);
$this->WPVarnishPurgeObject($month);
$this->WPVarnishPurgeObject($year);
}
// ODU
function WPVarnishPurgeAjaxCalendar($wpv_postid){
$month=str_replace(get_bloginfo('wpurl'),"",get_month_link(get_post_time('Y',false,$wpv_postid), get_post_time('m',true,$wpv_postid)));
$this->WPVarnishPurgeObject($month.'?ajax=true');
}
// ODU
function WPVarnishPurgeAjaxComments($wpv_commentid){
$month=str_replace(get_bloginfo('wpurl'),"",get_month_link(get_post_time('Y',false,$wpv_postid), get_post_time('m',true,$wpv_postid)));
$this->WPVarnishPurgeObject($month.'?ajax=true');
}
function WPVarnishPurgeCommonObjects() {
$this->WPVarnishPurgeObject("/");
$this->WPVarnishPurgeObject("/feed/");
$this->WPVarnishPurgeObject("/feed/atom/");
// Also purges page navigation
if (get_option($this->wpv_update_pagenavi_optname) == 1) {
$this->WPVarnishPurgeObject("/page/(.*)");
}
}
// WPVarnishPurgeAll - Using a regex, clear all blog cache. Use carefully.
function WPVarnishPurgeAll() {
$this->WPVarnishPurgeObject('/(.*)');
}
// WPVarnishPurgePost - Takes a post id (number) as an argument and generates
// the location path to the object that will be purged based on the permalink.
function WPVarnishPurgePost($wpv_postid) {
$wpv_url = get_permalink($wpv_postid);
$wpv_permalink = str_replace(get_bloginfo('wpurl'),"",$wpv_url);
$this->WPVarnishPurgeObject($wpv_permalink);
}
// WPVarnishPurgePostComments - Purge all comments pages from a post
function WPVarnishPurgePostComments($wpv_commentid) {
$comment = get_comment($wpv_commentid);
$wpv_commentapproved = $comment->comment_approved;
// If approved or deleting...
if ($wpv_commentapproved == 1 || $wpv_commentapproved == 'trash') {
$wpv_postid = $comment->comment_post_ID;
// Popup comments
$this->WPVarnishPurgeObject('/\\\?comments_popup=' . $wpv_postid);
// Also purges comments navigation
if (get_option($this->wpv_update_commentnavi_optname) == 1) {
$this->WPVarnishPurgeObject('/\\\?comments_popup=' . $wpv_postid . '&(.*)');
}
}
}
function WPVarnishAdminMenu() {
add_options_page(__('WP-Varnish Configuration','wp-varnish'), 'WP-Varnish', 1, 'WPVarnish', array(&$this, 'WPVarnishAdmin'));
}
// WpVarnishAdmin - Draw the administration interface.
function WPVarnishAdmin() {
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (current_user_can('administrator')) {
if (isset($_POST['wpvarnish_admin'])) {
if (!empty($_POST["$this->wpv_addr_optname"])) {
$wpv_addr_optval = $_POST["$this->wpv_addr_optname"];
update_option($this->wpv_addr_optname, $wpv_addr_optval);
}
if (!empty($_POST["$this->wpv_port_optname"])) {
$wpv_port_optval = $_POST["$this->wpv_port_optname"];
update_option($this->wpv_port_optname, $wpv_port_optval);
}
if (!empty($_POST["$this->wpv_timeout_optname"])) {
$wpv_timeout_optval = $_POST["$this->wpv_timeout_optname"];
update_option($this->wpv_timeout_optname, $wpv_timeout_optval);
}
if (!empty($_POST["$this->wpv_update_pagenavi_optname"])) {
update_option($this->wpv_update_pagenavi_optname, 1);
} else {
update_option($this->wpv_update_pagenavi_optname, 0);
}
if (!empty($_POST["$this->wpv_update_commentnavi_optname"])) {
update_option($this->wpv_update_commentnavi_optname, 1);
} else {
update_option($this->wpv_update_commentnavi_optname, 0);
}
}
if (isset($_POST['wpvarnish_clear_blog_cache']))
$this->WPVarnishPurgeAll();
?><div class="updated"><p><?php echo __('Settings Saved!','wp-varnish' ); ?></p></div><?php
} else {
?><div class="updated"><p><?php echo __('You do not have the privileges.','wp-varnish' ); ?></p></div><?php
}
}
$wpv_timeout_optval = get_option($this->wpv_timeout_optname);
$wpv_update_pagenavi_optval = get_option($this->wpv_update_pagenavi_optname);
$wpv_update_commentnavi_optval = get_option($this->wpv_update_commentnavi_optname);
?>
<div class="wrap">
<script type="text/javascript" src="<?php echo get_option('siteurl'); ?>/wp-content/plugins/wp-varnish/wp-varnish.js"></script>
<h2><?php echo __("WordPress Varnish Administration",'wp-varnish'); ?></h2>
<h3><?php echo __("IP address and port configuration",'wp-varnish'); ?></h3>
<form method="POST" action="<?php echo $_SERVER['REQUEST_URI']; ?>">
<?php
// Can't be edited - already defined in wp-config.php
global $varnish_servers;
if (is_array($varnish_servers)) {
echo "<p>" . __("These values can't be edited since there's a global configuration located in <em>wp-config.php</em>. If you want to change these settings, please update the file or contact the administrator.",'wp-varnish') . "</p>\n";
// Also, if defined, show the varnish servers configured (VARNISH_SHOWCFG)
if (defined('VARNISH_SHOWCFG')) {
echo "<h3>" . __("Current configuration:",'wp-varnish') . "</h3>\n";
echo "<ul>";
foreach ($varnish_servers as $server) {
list ($host, $port) = explode(':', $server);
echo "<li>" . __("Server: ",'wp-varnish') . $host . "<br/>" . __("Port: ",'wp-varnish') . $port . "</li>";
}
echo "</ul>";
}
} else {
// If not defined in wp-config.php, use individual configuration.
?>
<!-- <table class="form-table" id="form-table" width=""> -->
<table class="form-table" id="form-table">
<tr valign="top">
<th scope="row"><?php echo __("Varnish Administration IP Address",'wp-varnish'); ?></th>
<th scope="row"><?php echo __("Varnish Administration Port",'wp-varnish'); ?></th>
</tr>
<script>
<?php
$addrs = get_option($this->wpv_addr_optname);
$ports = get_option($this->wpv_port_optname);
echo "rowCount = $i\n";
for ($i = 0; $i < count ($addrs); $i++) {
// let's center the row creation in one spot, in javascript
echo "addRow('form-table', $i, '$addrs[$i]', $ports[$i]);\n";
} ?>
</script>
</table>
<br/>
<table>
<tr>
<td colspan="3"><input type="button" class="" name="wpvarnish_admin" value="+" onclick="addRow ('form-table', rowCount)" /> <?php echo __("Add one more server",'wp-varnish'); ?></td>
</tr>
</table>
<?php
}
?>
<p><?php echo __("Timeout",'wp-varnish'); ?>: <input class="small-text" type="text" name="wpvarnish_timeout" value="<?php echo $wpv_timeout_optval; ?>" /> <?php echo __("seconds",'wp-varnish'); ?></p>
<p><input type="checkbox" name="wpvarnish_update_pagenavi" value="1" <?php if ($wpv_update_pagenavi_optval == 1) echo 'checked '?>/> <?php echo __("Also purge all page navigation (experimental, use carefully, it will include a bit more load on varnish servers.)",'wp-varnish'); ?></p>
<p><input type="checkbox" name="wpvarnish_update_commentnavi" value="1" <?php if ($wpv_update_commentnavi_optval == 1) echo 'checked '?>/> <?php echo __("Also purge all comment navigation (experimental, use carefully, it will include a bit more load on varnish servers.)",'wp-varnish'); ?></p>
<p class="submit"><input type="submit" class="button-primary" name="wpvarnish_admin" value="<?php echo __("Save Changes",'wp-varnish'); ?>" /></p>
<p class="submit"><input type="submit" class="button-primary" name="wpvarnish_clear_blog_cache" value="<?php echo __("Purge All Blog Cache",'wp-varnish'); ?>" /> <?php echo __("Use only if necessary, and carefully as this will include a bit more load on varnish servers.",'wp-varnish'); ?></p>
</form>
</div>
<?php
}
// WPVarnishPurgeObject - Takes a location as an argument and purges this object
// from the varnish cache.
function WPVarnishPurgeObject($wpv_url) {
global $varnish_servers;
if (is_array($varnish_servers)) {
foreach ($varnish_servers as $server) {
list ($host, $port) = explode(':', $server);
$wpv_purgeaddr[] = $host;
$wpv_purgeport[] = $port;
}
} else {
$wpv_purgeaddr = get_option($this->wpv_addr_optname);
$wpv_purgeport = get_option($this->wpv_port_optname);
}
$wpv_timeout = get_option($this->wpv_timeout_optname);
$wpv_wpurl = get_bloginfo('wpurl');
$wpv_replace_wpurl = '/^http:\/\/([^\/]+)(.*)/i';
$wpv_host = preg_replace($wpv_replace_wpurl, "$1", $wpv_wpurl);
$wpv_blogaddr = preg_replace($wpv_replace_wpurl, "$2", $wpv_wpurl);
$wpv_url = $wpv_blogaddr . $wpv_url;
for ($i = 0; $i < count ($wpv_purgeaddr); $i++) {
$varnish_sock = fsockopen($wpv_purgeaddr[$i], $wpv_purgeport[$i], $errno, $errstr, $wpv_timeout);
if (!$varnish_sock) {
error_log("wp-varnish error: $errstr ($errno)");
} else {
$out = "PURGE $wpv_url HTTP/1.0\r\n";
$out .= "Host: $wpv_host\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($varnish_sock, $out);
fclose($varnish_sock);
}
}
}
}
$wpvarnish = & new WPVarnish();
?>
