mirror of
https://github.com/DanielnetoDotCom/YouPHPTube
synced 2025-10-04 18:29:39 +02:00
262 lines
9.7 KiB
PHP
262 lines
9.7 KiB
PHP
<?php
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require_once $global['systemRootPath'] . 'plugin/Plugin.abstract.php';
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class Cache extends PluginAbstract {
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public function getTags() {
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return array(
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PluginTags::$RECOMMENDED,
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PluginTags::$FREE
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);
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}
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public function getDescription() {
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$txt = "AVideo application accelerator to cache pages.<br>Your website has 10,000 visitors who are online, and your dynamic page has to send 10,000 times the same queries to database on every page load. With this plugin, your page only sends 1 query to your DB, and uses the cache to serve the 9,999 other visitors.";
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$help = "<br><small><a href='https://github.com/WWBN/AVideo/wiki/Cache-Plugin' target='__blank'><i class='fas fa-question-circle'></i> Help</a></small>";
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return $txt . $help;
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}
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public function getName() {
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return "Cache";
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}
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public function getUUID() {
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return "10573225-3807-4167-ba81-0509dd280e06";
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}
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public function getPluginVersion() {
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return "1.0";
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}
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public function getEmptyDataObject() {
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global $global;
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$obj = new stdClass();
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$obj->enableCachePerUser = false;
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$obj->enableCacheForLoggedUsers = false;
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$obj->cacheTimeInSeconds = 600;
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$obj->cacheDir = $global['systemRootPath'] . 'videos/cache/';
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$obj->logPageLoadTime = false;
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$obj->stopBotsFromNonCachedPages = false;
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return $obj;
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}
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public function getCacheDir($ignoreFirstPage=true) {
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global $global;
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$obj = $this->getDataObject();
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$firstPage = "";
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if (!$ignoreFirstPage && $this->isFirstPage()) {
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$firstPage = "firstPage/";
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}
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$obj->cacheDir = rtrim($obj->cacheDir, '/') . '/';
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if (!file_exists($obj->cacheDir)) {
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$obj->cacheDir = $global['systemRootPath'] . 'videos/cache/';
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$this->setDataObject($obj);
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if (!file_exists($obj->cacheDir)) {
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mkdir($obj->cacheDir, 0777, true);
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}
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}
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return $obj->cacheDir . $firstPage;
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}
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private function getFileName() {
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if (empty($_SERVER['REQUEST_URI'])) {
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$_SERVER['REQUEST_URI'] = "";
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}
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$obj = $this->getDataObject();
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$session_id = "";
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if (!empty($obj->enableCachePerUser)) {
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$session_id = session_id();
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}
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$compl = "";
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if (!empty($_SERVER['HTTP_USER_AGENT']) && get_browser_name($_SERVER['HTTP_USER_AGENT']) === 'Safari') {
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$compl .= "safari_";
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}
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$dir = "";
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$plugin = AVideoPlugin::loadPluginIfEnabled('User_Location');
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if (!empty($plugin)) {
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$location = User_Location::getThisUserLocation();
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if (!empty($location['country_code'])) {
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$dir = $location['country_code'] . "/";
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}
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}
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return $dir . User::getId() . "_{$compl}" . md5(@$_SESSION['channelName'] . $_SERVER['REQUEST_URI'] . $_SERVER['HTTP_HOST']) . "_" . $session_id . "_" . (!empty($_SERVER['HTTPS']) ? 'a' : '') . (@$_SESSION['language']) . '.cache';
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}
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private function isFirstPage() {
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// can not process
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if (empty($_SERVER['HTTP_HOST'])) {
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//$str = "isFirstPage: Empty HTTP_HOST, IP: ". getRealIpAddr()." SERVER: ". json_encode($_SERVER);
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//_error_log($str);
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die();
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}
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global $global;
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$actual_link = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
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$actual_link = rtrim($actual_link, '/') . '/';
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if ($global['webSiteRootURL'] === $actual_link) {
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return true;
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}
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$regExp = "/" . str_replace("/", '\/', $global['webSiteRootURL']) . "\?showOnly=/";
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//echo $regExp;
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if (preg_match($regExp, $actual_link)) {
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return true;
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}
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return false;
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}
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public function getStart() {
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global $global;
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// ignore cache if it is command line
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$obj = $this->getDataObject();
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if ($obj->logPageLoadTime) {
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$this->start();
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}
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if (isCommandLineInterface()) {
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return true;
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}
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$whitelistedFiles = array('user.php', 'status.php', 'canWatchVideo.json.php', '/login', '/status');
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$blacklistedFiles = array('videosAndroid.json.php');
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$baseName = basename($_SERVER["SCRIPT_FILENAME"]);
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if (!empty($_GET["videoName"]) || in_array($baseName, $whitelistedFiles) || in_array($_SERVER['REQUEST_URI'], $whitelistedFiles)) {
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return true;
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}
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$isBot = isBot();
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if ($this->isBlacklisted() || $this->isFirstPage() || !class_exists('User') || !User::isLogged() || !empty($obj->enableCacheForLoggedUsers)) {
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$cachefile = $this->getCacheDir(false) . $this->getFileName(); // e.g. cache/index.php.
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$lifetime = $obj->cacheTimeInSeconds;
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if (!empty($_GET['lifetime'])) {
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$lifetime = intval($_GET['lifetime']);
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}
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// if is a bot always show a cache
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if (file_exists($cachefile) && (((time() - $lifetime) <= filemtime($cachefile)) || $isBot)) {
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if ($isBot && $_SERVER['REQUEST_URI'] !== '/login') {
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//_error_log("Bot Detected, showing the cache ({$_SERVER['REQUEST_URI']}) FROM: {$_SERVER['REMOTE_ADDR']} Browser: {$_SERVER['HTTP_USER_AGENT']}");
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}
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$c = @local_get_contents($cachefile);
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if (preg_match("/\.json\.?/", $baseName)) {
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header('Content-Type: application/json');
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}
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echo $c;
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if ($obj->logPageLoadTime) {
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$this->end("Cache");
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}
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exit;
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} else if (file_exists($cachefile)) {
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unlink($cachefile);
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}
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}
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if ($isBot &&
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strpos($_SERVER['REQUEST_URI'], 'aVideoEncoder') === false &&
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strpos($_SERVER['REQUEST_URI'], 'plugin/Live/on_') === false &&
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strpos($_SERVER['REQUEST_URI'], 'plugin/YPTStorage') === false &&
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strpos($_SERVER['REQUEST_URI'], '/login') === false &&
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strpos($_SERVER['REQUEST_URI'], 'restreamer.json.php') === false &&
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$_SERVER['REMOTE_ADDR'] !='127.0.0.1') {
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if (empty($_SERVER['HTTP_USER_AGENT'])) {
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$_SERVER['HTTP_USER_AGENT'] = "";
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}
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_error_log("Bot Detected, NOT showing the cache ({$_SERVER['REQUEST_URI']}) FROM: {$_SERVER['REMOTE_ADDR']} Browser: {$_SERVER['HTTP_USER_AGENT']}");
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if ($obj->stopBotsFromNonCachedPages) {
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_error_log("Bot stopped");
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exit;
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}
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}
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//ob_start('sanitize_output');
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ob_start();
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}
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private function isBlacklisted() {
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$blacklistedFiles = array('videosAndroid.json.php');
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$baseName = basename($_SERVER["SCRIPT_FILENAME"]);
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return in_array($baseName, $blacklistedFiles);
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}
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public function getEnd() {
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global $global;
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$obj = $this->getDataObject();
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$cachefile = $this->getCacheDir(false) . $this->getFileName();
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$c = ob_get_contents();
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if(!headers_sent()){
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header_remove('Set-Cookie');
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}
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/*
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if (!file_exists($this->getCacheDir())) {
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mkdir($this->getCacheDir(), 0777, true);
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}
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*
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*/
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make_path($cachefile);
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if ($this->isBlacklisted() || $this->isFirstPage() || !class_exists('User') || !User::isLogged() || !empty($obj->enableCacheForLoggedUsers)) {
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file_put_contents($cachefile, $c);
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}
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if ($obj->logPageLoadTime) {
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$this->end();
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}
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}
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private function start() {
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global $global;
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$time = microtime();
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$time = explode(' ', $time);
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$time = $time[1] + $time[0];
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$global['cachePluginStart'] = $time;
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}
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private function end($type = "No Cache") {
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global $global;
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if (empty($global['cachePluginStart'])) {
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return false;
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}
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require_once $global['systemRootPath'] . 'objects/user.php';
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$time = microtime();
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$time = explode(' ', $time);
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$time = $time[1] + $time[0];
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$finish = $time;
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if (User::isLogged()) {
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$type = "User: " . User::getUserName() . " - " . $type;
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} else {
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$type = "User: Not Logged - " . $type;
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}
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$t = (floatval($finish) - floatval($global['cachePluginStart']));
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$total_time = round($t, 4);
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_error_log("Page generated in {$total_time} seconds. {$type} ({$_SERVER['REQUEST_URI']}) FROM: {$_SERVER['REMOTE_ADDR']} Browser: {$_SERVER['HTTP_USER_AGENT']}");
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}
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}
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function sanitize_output($buffer) {
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$search = array(
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'/\>[^\S ]+/s', // strip whitespaces after tags, except space
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'/[^\S ]+\</s', // strip whitespaces before tags, except space
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'/(\s)+/s', // shorten multiple whitespace sequences
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'/<!--(.|\s)*?-->/' // Remove HTML comments
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);
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$replace = array(
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'>',
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'<',
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'\\1',
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''
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);
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$len = strlen($buffer);
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if ($len) {
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_error_log("Before Sanitize: " . strlen($buffer));
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$buffer = preg_replace($search, $replace, $buffer);
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$lenAfter = strlen($buffer);
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_error_log("After Sanitize: {$lenAfter} = " . (($len / $lenAfter) * 100) . "%");
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}
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return $buffer;
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}
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