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Sample Commercial Plugin update server and client
<?php
/*
* Plugin Name: Commercial Client
* Plugin URI: http://pento.net/
* Description: A sample client plugin for showing updates for non-WordPress.org plugins
* Author: pento
* Version: 0.1
* Author URI: http://pento.net/
* License: GPL2+
*/
// Don't allow the plugin to be loaded directly
if ( ! function_exists( 'add_action' ) ) {
echo "Please enable this plugin from your wp-admin.";
exit;
}
class CommercialClient {
// This is the URL of the page we defined in CommercialServer.
private $APIurl = 'http://localhost/api/';
// This is the URL for your own changelog. You should make it look pretty.
private $changelogURL = 'http://localhost/changelog/';
// This should match the slug that CommercialServer::createAPI() sends
private $slug = 'commercial-client';
function init() {
static $instance;
if ( empty( $instance ) )
$instance = new CommercialClient();
return $instance;
}
function CommercialClient() {
// WordPress doesn't let us hook directly into the update process.
// The update info is storted in the 'update_plugins' transient, however,
// so we can hook into that, instead.
add_filter( 'pre_set_site_transient_update_plugins', array( $this, 'checkForUpdates' ), 10, 1 );
// The changelog isn't available on WordPress.org, so we need to override the update information
add_action( 'install_plugins_pre_plugin-information', array( $this, 'overrideUpdateInformation' ), 1 );
}
function checkForUpdates( $value ) {
include ABSPATH . WPINC . '/version.php';
$plugin_data = get_plugin_data( __FILE__ );
// If your plugin has a key that you want to check on the server side,
// you should include it in the 'body' element of this array.
$options = array(
'timeout' => ( ( defined('DOING_CRON') && DOING_CRON ) ? 30 : 3 ),
'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' ),
'body' => array(
'version' => $plugin_data['Version'],
)
);
$raw_response = wp_remote_post( $this->APIurl, $options );
if ( is_wp_error( $raw_response ) || 200 != wp_remote_retrieve_response_code( $raw_response ) )
return $value;
$response = maybe_unserialize( wp_remote_retrieve_body( $raw_response ) );
if ( empty( $response ) )
return $value;
// If you decide to have the server return different data (for example, for an invalid key),
// you should process it here, then return $value, unmodified.
$value->response[ plugin_basename( __FILE__ ) ] = $response;
return $value;
}
function overrideUpdateInformation() {
if ( wp_unslash( $_REQUEST['plugin'] ) !== $this->slug )
return;
wp_redirect( $this->changelogURL );
exit;
}
}
add_action( 'plugins_loaded', array( 'CommercialClient', 'init' ) );
<?php
/*
* Plugin Name: Commercial Server
* Plugin URI: http://pento.net/
* Description: A sample server for showing updates for non-WordPress.org plugins
* Author: pento
* Version: 0.1
* Author URI: http://pento.net/
* License: GPL2+
*/
// Don't allow the plugin to be loaded directly
if ( ! function_exists( 'add_action' ) ) {
echo "Please enable this plugin from your wp-admin.";
exit;
}
class CommercialServer {
// When the client site checks for an update, it will request this page.
// We override it, for great justice.
private $APIpageID = 26;
private $currentVersion = '0.2';
function init() {
static $instance;
if ( empty( $instance ) )
$instance = new CommercialServer();
return $instance;
}
function CommercialServer() {
add_action( 'parse_query', array( $this, 'createAPI' ) );
}
function createAPI() {
global $wp_query;
if ( empty( $wp_query->queried_object ) )
return;
if ( ! is_a( $wp_query->queried_object, 'WP_Post' ) )
return;
if ( $this->APIpageID !== $wp_query->queried_object->ID )
return;
if ( empty( $_REQUEST['version'] ) )
exit;
// If there's no update, don't bother returning any info
if ( version_compare( $this->currentVersion, $_REQUEST['version'], '<=' ) )
exit;
// If you want to have the client send a licence key, here would be a good place to check it.
// So, here's a sample update. You probably want to fill this info from your version DB, or something.
$response = new stdClass();
$response->id = 0;
$response->slug = 'commercial-client';
$response->new_version = $this->currentVersion;
$response->url = 'http://localhost/';
$response->package = 'http://localhost/downloads/commercial-client-0.2.zip';
echo serialize( $response );
exit;
}
}
add_action( 'plugins_loaded', array( 'CommercialServer', 'init' ) );
@azharijelek

Hi pento, great work!...
could you please tell us how to use this plugins?
is it just need to plug and play?

thanks

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