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better-wp-varnish.php
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better-wp-varnish.php
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<?php
/*
Plugin Name: Better WP Varnish
Plugin URI: http://bit51.com/software/better-wp-varnish/
Description: A better solution for clearing Varnish cache with WordPress
Version: 1.0
Text Domain: better-wp-varnish
Domain Path: /languages
Author: Bit51
Author URI: http://bit51.com
License: GPLv2
Copyright 2012 - 2013 Bit51.com (email: [email protected])
*/
//Require common Bit51 library
require_once( plugin_dir_path( __FILE__ ) . 'lib/bit51/bit51.php' );
if ( ! class_exists( 'bit51_bwpv' )) {
class bit51_bwpv extends Bit51 {
public $pluginversion = '0003'; //current plugin version
//important plugin information
public $hook = 'better-wp-varnish';
public $pluginbase = 'better-wp-varnish/better-wp-varnish.php';
public $pluginname = 'Better WP Varnish';
public $homepage = 'http://bit51.com/software/share-center-pro/';
public $supportpage = 'http://wordpress.org/support/plugin/better-wp-varnish';
public $wppage = 'http://wordpress.org/extend/plugins/better-wp-varnish/';
public $accesslvl = 'manage_options';
public $paypalcode = 'EVXJ8EN6YSYFY';
public $plugindata = 'bit51_bwpv_data';
public $primarysettings = 'bit51_bwpv';
public $settings = array(
'bit51_bwpv_options' => array(
'bit51_bwpv' => array(
'callback' => 'bwpv_val_options',
'enabled' => '0',
'address' => '127.0.0.1',
'port' => '80',
'timeout' => '5'
)
)
);
function __construct() {
global $bwpvoptions, $bwpvdata;
$this->pluginname = __( 'Better WP Varnish', 'better_wp_varnish' );
//set path information
if ( ! defined( 'BWPV_PP' ) ) {
define( 'BWPV_PP', plugin_dir_path( __FILE__ ) );
}
if ( ! defined( 'BWPV_PU' ) ) {
define( 'BWPV_PU', plugin_dir_url( $this->pluginbase, __FILE__ ) );
}
//require admin page
require_once( plugin_dir_path( __FILE__ ) . 'inc/admin.php' );
new bwpv_admin( $this );
//require setup information
require_once( plugin_dir_path( __FILE__ ) . 'inc/setup.php' );
register_activation_hook( __FILE__, array( 'bwpv_setup', 'on_activate' ) );
register_deactivation_hook( __FILE__, array( 'bwpv_setup', 'on_deactivate' ) );
register_uninstall_hook( __FILE__, array( 'bwpv_setup', 'on_uninstall' ) );
$bwpvoptions = get_option( $this->primarysettings );
$bwpvdata = get_option( $this->plugindata );
if ( $bwpvdata['version'] != $this->pluginversion ) {
new bwpv_setup( 'activate' );
}
if ( $bwpvoptions['enabled'] == 1 ) {
add_action( 'edit_post', array( $this, 'purgePost' ), 99 );
add_action( 'edit_post', array( $this, 'purgeCommon' ), 99 );
add_action( 'comment_post', array( $this, 'purgeComment' ), 99 );
add_action( 'edit_comment', array( $this, 'purgeComment' ), 99 );
add_action( 'trashed_comment', array( $this, 'purgeComment' ), 99 );
add_action( 'untrashed_comment', array( $this, 'purgeComment' ), 99 );
add_action( 'deleted_comment', array( $this, 'purgeComment' ), 99 );
add_action( 'deleted_post', array( $this, 'purgePost' ), 99 );
add_action( 'deleted_post', array( $this, 'purgeCommon' ), 99 );
add_action( 'wp_before_admin_bar_render', array( $this, 'adminBar' ) );
}
}
function adminBar() {
global $wp_admin_bar, $post;
if ( current_user_can( $this->accesslvl ) ) {
$nonce = wp_create_nonce( 'bwpv-nonce' );
$wp_admin_bar->add_menu( array(
'parent' => false, // use 'false' for a root menu, or pass the ID of the parent menu
'id' => 'bwpv', // link ID, defaults to a sanitized title value
'title' => __( 'Varnish', 'better_wp_varnish' ), // link title
'href' => admin_url( 'options-general.php?page=better-wp-varnish' ), // name of file
'meta' => false // array of any of the following options: array( 'html' => '', 'class' => '', 'onclick' => '', target => '', title => '' );
) );
if ( isset( $post->ID ) && $post->ID ) {
$id = $post->ID;
} else {
$id = false;
}
if ( $id !== false ) {
$wp_admin_bar->add_menu( array(
'parent' => 'bwpv', // use 'false' for a root menu, or pass the ID of the parent menu
'id' => 'bwpv-cp', // link ID, defaults to a sanitized title value
'title' => __( 'Clear This Page', 'better_wp_varnish' ), // link title
'href' => admin_url( 'options-general.php?page=better-wp-varnish&flush=current&id=' . $id . '&_wpnonce=' . $nonce ), // name of file
'meta' => false // array of any of the following options: array( 'html' => '', 'class' => '', 'onclick' => '', target => '', title => '' );
) );
}
$wp_admin_bar->add_menu( array(
'parent' => 'bwpv', // use 'false' for a root menu, or pass the ID of the parent menu
'id' => 'bwpv-ca', // link ID, defaults to a sanitized title value
'title' => __( 'Clear All', 'better_wp_varnish' ), // link title
'href' => admin_url( 'options-general.php?page=better-wp-varnish&flush=all&id=' . ( $id === false ? 'opts' : $id ) . '&_wpnonce=' . $nonce ), // name of file
'meta' => false // array of any of the following options: array( 'html' => '', 'class' => '', 'onclick' => '', target => '', title => '' );
) );
}
}
/**
* Purge all content from cache
*
**/
function purgeAll() {
if ( $this->purgeVarnish( '(.*)' ) == true ) {
return true;
} else {
return false;
}
}
/**
* Purge common content from cache
*
**/
function purgeCommon() {
$success = $this->purgeVarnish( '/' );
$success = $this->purgeVarnish( '(.*)/feed/(.*)' );
$success = $this->purgeVarnish( '(.*)/trackback/(.*)' );
$success = $this->purgeVarnish( '/page/(.*)' );
if ( $success == true ) {
return true;
} else {
return false;
}
}
/**
* Purges the given post from varnish
*
* @param $postid int post id
**/
function purgePost( $postid ) {
$url = get_permalink( $postid );
$link = str_replace( home_url(), '', $url );
$success = $this->purgeVarnish( $link );
$success = $this->purgeVarnish( $link . 'page/(.*)' );
if ( $success == true ) {
return true;
} else {
return false;
}
}
/**
* Purges the given comment from varnish
*
* @param $commentit int comment id
**/
function purgeComment( $commentid ) {
$comment = get_comment( $commentid );
$approved = $comment->comment_approved;
$success = true;
if ( $approved == 1 || $approved == 'trash') {
$approved = $comment->comment_post_ID;
$success = $this->purgeVarnish( '/\\\?comments_popup=' . $approved );
$success = $this->purgeVarnish( '/\\\?comments_popup=' . $approved . '&(.*)' );
}
if ( $success == true ) {
return true;
} else {
return false;
}
}
/**
* Purges the given url from varnish
*
* @param $target string url of the file to purge
* @return bool true for success, false for failure
**/
function purgeVarnish( $target ) {
global $bwpvoptions;
@ini_set( 'auto_detect_line_endings', true );
$host = parse_url( get_site_url(), PHP_URL_HOST );
$out = 'PURGE ' . $target . ' HTTP/1.0' . PHP_EOL;
$out .= 'Host: ' . $host . PHP_EOL;
$out .= 'Connection: Close' . PHP_EOL . PHP_EOL;
$sock = @fsockopen( $bwpvoptions['address'], $bwpvoptions['port'], $errno, $errstr, $bwpvoptions['timeout'] );
if ( $sock ) {
@fwrite( $sock, $out );
$result = @fread( $sock, 256 );
@fclose( $sock );
}
if ( preg_match( '/200 OK/', $result ) || preg_match( '/200 Purged/', $result ) ) {
return true;
} else {
return false;
}
}
}
}
//create plugin object
global $bit51bwpv;
$bit51bwpv = new bit51_bwpv();