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<?php
/** *********************************************
* LiteSpeed Web Server WordPress Dash Notifier
*
* @author Michael Alegre
* @copyright 2019-2023 LiteSpeed Technologies, Inc.
* *******************************************
*/
namespace Lsc\Wp;
use Lsc\Wp\Context\Context;
use Lsc\Wp\WpWrapper\WpConstants;
use Lsc\Wp\WpWrapper\WpFuncs;
class DashNotifier
{
/**
* @var string
*/
const BYPASS_FLAG = '.dash_notifier_bypass';
/**
* @var string
*/
const DASH_MD5 = 'dash_md5';
/**
* @var string
*/
const DASH_PLUGIN = 'dash-notifier/dash-notifier.php';
/**
* @var string
*/
const DEFAULT_PLUGIN_PATH = '/wp-content/plugins/dash-notifier';
/**
* @deprecated 1.9
*
* @var string
*/
const DOWNLOAD_DIR = '/usr/src/litespeed-wp-plugin';
/**
* @var string
*/
const PLUGIN_NAME = 'dash-notifier';
/**
* @var string
*/
const VER_FILE = 'dash_ver';
private function __construct()
{
}
/**
*
* @since 1.9
*
* @return void
*
* @throws LSCMException Thrown when read dash version file command fails.
* @throws LSCMException Thrown indirectly by self::getLatestVersion()
* call.
* @throws LSCMException Thrown indirectly by self::downloadVersion() call.
* @throws LSCMException Thrown indirectly by self::downloadVersion() call.
* @throws LSCMException Thrown indirectly by self::downloadVersion() call.
* @throws LSCMException Thrown indirectly by Logger::error() call.
*/
public static function prepLocalDashPluginFiles()
{
$dashVerFile = Context::LOCAL_PLUGIN_DIR . '/' . self::VER_FILE;
if ( ! file_exists($dashVerFile) ) {
self::downloadVersion(self::getLatestVersion());
return;
}
if ( ($content = file_get_contents($dashVerFile)) === false ) {
throw new LSCMException(
'prepLocalDashPluginFiles(): Failed to read file '
. self::VER_FILE . ' contents.'
);
}
$localVer = trim($content);
$pluginDir = Context::LOCAL_PLUGIN_DIR . '/' . self::PLUGIN_NAME;
if ( ! file_exists($pluginDir) ) {
self::downloadVersion($localVer);
return;
}
$isStoredMd5Valid = (
file_get_contents(Context::LOCAL_PLUGIN_DIR . '/' . self::DASH_MD5)
==
Util::DirectoryMd5($pluginDir)
);
if ( !$isStoredMd5Valid ) {
self::downloadVersion($localVer);
return;
}
clearstatcache();
if ( (time() - filemtime($dashVerFile)) > 86400 ) {
try {
$latestVer = self::getLatestVersion();
if ( Util::betterVersionCompare($latestVer, $localVer, '<') ) {
self::downloadVersion($latestVer);
}
}
catch ( LSCMException $e ) {
Logger::error($e->getMessage());
}
touch($dashVerFile);
}
}
/**
*
* @since 1.9
*
* @return string
*
* @throws LSCMException Thrown when unable to retrieve latest Dash
* Notifier plugin version.
*/
public static function getLatestVersion()
{
$content = Util::get_url_contents(
'https://www.litespeedtech.com/packages/lswpcache/dash_latest'
);
if ( empty($content) ) {
throw new LSCMException(
'Could not retrieve latest Dash Notifier plugin version'
);
}
return trim($content);
}
/**
*
* @since 1.9
*
* @param string $version
*
* @throws LSCMException Thrown indirectly by self::wgetPlugin() call.
*/
protected static function downloadVersion( $version )
{
$pluginDir = Context::LOCAL_PLUGIN_DIR . '/' . self::PLUGIN_NAME;
if ( file_exists($pluginDir) ) {
exec("/bin/rm -rf $pluginDir");
}
self::wgetPlugin($version, true);
}
/**
*
* @since 1.9
*
* @param string $version
* @param bool $saveMD5
*
* @throws LSCMException Thrown when wget command fails to download
* requested Dash Notifier plugin version.
* @throws LSCMException Thrown when unable to unzip downloaded Dash
* Notifier plugin package.
* @throws LSCMException Thrown when downloaded Dash Notifier plugin
* package is missing an expected file.
* @throws LSCMException Thrown indirectly by Logger::info() call.
* @throws LSCMException Thrown indirectly by Util::unzipFile() call.
*/
protected static function wgetPlugin( $version, $saveMD5 = false )
{
Logger::info("Downloading Dash Notifier v$version...");
$zipFileName = self::PLUGIN_NAME . ".$version.zip";
exec(
"wget -q --tries=1 --no-check-certificate "
. "https://downloads.wordpress.org/plugin/$zipFileName -P "
. Context::LOCAL_PLUGIN_DIR,
$output,
$return_var
);
if ( $return_var !== 0 ) {
throw new LSCMException(
"Failed to download Dash Notifier v$version with wget exit "
. "status $return_var.",
LSCMException::E_NON_FATAL
);
}
$localZipFile = Context::LOCAL_PLUGIN_DIR . "/$zipFileName";
$extracted = Util::unzipFile($localZipFile, Context::LOCAL_PLUGIN_DIR);
unlink($localZipFile);
if ( ! $extracted ) {
throw new LSCMException(
"Unable to unzip $localZipFile",
LSCMException::E_NON_FATAL
);
}
$pluginDir = Context::LOCAL_PLUGIN_DIR . '/' . self::PLUGIN_NAME;
if ( ! file_exists("$pluginDir/" . self::PLUGIN_NAME . '.php') ) {
throw new LSCMException(
"Unable to download Dash Notifier v$version.",
LSCMException::E_NON_FATAL
);
}
if ( $saveMD5 ) {
file_put_contents(
Context::LOCAL_PLUGIN_DIR . '/' . self::DASH_MD5,
Util::DirectoryMd5($pluginDir)
);
}
file_put_contents(
Context::LOCAL_PLUGIN_DIR . '/' . self::VER_FILE,
$version
);
}
/**
* Check if WordPress installation should be notified using the Dash
* Notifier plugin.
*
* @param string $wpPath Root directory for WordPress installation.
*
* @return bool
*/
public static function canNotify( $wpPath )
{
return !file_exists("$wpPath/" . self::BYPASS_FLAG);
}
/**
* Checks the current installation for existing LSCWP plugin files and
* copies them to the installation's plugins directory if not found.
* This function should only be run as the user.
*
* @return bool True when new Dash Notifier plugin files are used.
*
* @throws LSCMException Thrown when unable to copy Dash Notifier plugin
* files to WordPress plugin directory.
* @throws LSCMException Thrown indirectly by Logger::debug() call.
*/
public static function prepareUserInstall()
{
$pluginDir = WpConstants::getWpConstant('WP_PLUGIN_DIR');
$dashNotifierPlugin = "$pluginDir/dash-notifier/dash-notifier.php";
if ( file_exists($dashNotifierPlugin) ) {
/**
* Existing installation detected.
*/
return false;
}
exec(
'/bin/cp -rf ' . Context::LOCAL_PLUGIN_DIR . '/' . self::PLUGIN_NAME
. " $pluginDir"
);
if ( !file_exists($dashNotifierPlugin) ) {
throw new LSCMException(
"Failed to copy Dash Notifier plugin files to $pluginDir.",
LSCMException::E_NON_FATAL
);
}
Logger::debug(
'Copied Dash Notifier plugin files into plugins directory '
. $pluginDir
);
return true;
}
/**
* Activate Dash Notifier plugin if it is not already activated, and give
* the plugin any notification data in the form of a JSON encoded array.
*
* @param string $jsonInfo Dash Notifier plugin info.
*
* @return bool
*
* @throws LSCMException Thrown when unable to find Dash Notifier plugin
* files.
*/
public static function doNotify( $jsonInfo )
{
if (
file_exists(
WpConstants::getWpConstant('WP_PLUGIN_DIR')
. '/' . self::DASH_PLUGIN
)
) {
/**
* Used to pass info to the Dash Notifier Plugin.
*/
Util::define_wrapper( 'DASH_NOTIFIER_MSG', $jsonInfo);
if ( !WpFuncs::isPluginActive(self::DASH_PLUGIN) ) {
/**
* Should not check directly, can error on success due to object
* cache.
*/
WpFuncs::activatePlugin(self::DASH_PLUGIN);
if ( !WpFuncs::isPluginActive(self::DASH_PLUGIN) ) {
return false;
}
}
else {
include WpConstants::getWpConstant('WP_PLUGIN_DIR')
. '/' . self::DASH_PLUGIN;
}
}
else {
throw new LSCMException(
'Dash Notifier plugin files are missing. Cannot notify.',
LSCMException::E_NON_FATAL
);
}
return true;
}
/**
*
* @param bool $uninstall
*/
public static function deactivate( $uninstall )
{
WpFuncs::deactivatePlugins(self::DASH_PLUGIN);
if ( $uninstall ) {
//add some msg about having removed plugin files?
WpFuncs::deletePlugins(array( self::DASH_PLUGIN ));
}
}
}