class.ilWebAccessCheckerDelivery.php

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<?php
require_once('./Services/WebAccessChecker/classes/class.ilWebAccessChecker.php');
require_once('./Services/WebAccessChecker/classes/class.ilHTTP.php');
require_once('./Services/FileDelivery/classes/class.ilFileDelivery.php');

class ilWebAccessCheckerDelivery {

        protected $ilWebAccessChecker = null;


        public static function run($raw_path) {
                $obj = new self($raw_path);
                $obj->handleRequest();
        }


        public function __construct($raw_path) {
                $this->ilWebAccessChecker = new ilWebAccessChecker(rawurldecode($raw_path));
        }


        protected function handleRequest() {
                // Set errorreporting
                ilInitialisation::handleErrorReporting();

                // Set customizing
                if (isset($_GET[ilWebAccessChecker::DISPOSITION])) {
                        $this->ilWebAccessChecker->setDisposition($_GET[ilWebAccessChecker::DISPOSITION]);
                }
                if (isset($_GET[ilWebAccessChecker::STATUS_CODE])) {
                        $this->ilWebAccessChecker->setSendStatusCode($_GET[ilWebAccessChecker::STATUS_CODE]);
                }
                if (isset($_GET[ilWebAccessChecker::REVALIDATE])) {
                        $this->ilWebAccessChecker->setRevalidateFolderTokens($_GET[ilWebAccessChecker::REVALIDATE]);
                }

                // Check if File can be delivered
                try {
                        if ($this->ilWebAccessChecker->check()) {
                                $this->deliver();
                        } else {
                                $this->deny();
                        }
                } catch (ilWACException $e) {
                        switch ($e->getCode()) {
                                case ilWACException::ACCESS_DENIED:
                                case ilWACException::ACCESS_DENIED_NO_PUB:
                                case ilWACException::ACCESS_DENIED_NO_LOGIN:
                                        $this->handleAccessErrors($e);
                                        break;
                                case ilWACException::ACCESS_WITHOUT_CHECK:
                                case ilWACException::INITIALISATION_FAILED:
                                case ilWACException::NO_CHECKING_INSTANCE:
                                default:
                                        $this->handleErrors($e);
                                        break;
                        }
                }
        }


        protected function deny() {
                if (!$this->ilWebAccessChecker->isChecked()) {
                        throw new ilWACException(ilWACException::ACCESS_WITHOUT_CHECK);
                }
                throw new ilWACException(ilWACException::ACCESS_DENIED);
        }


        protected function deliverDummyImage() {
                $ilFileDelivery = new ilFileDelivery('./Services/WebAccessChecker/templates/images/access_denied.png', $this->ilWebAccessChecker->getPathObject()
                                                                                                                                                ->getFileName());
                $ilFileDelivery->setDisposition($this->ilWebAccessChecker->getDisposition());
                $ilFileDelivery->deliver();
        }


        protected function deliverDummyVideo() {
                $ilFileDelivery = new ilFileDelivery('./Services/WebAccessChecker/templates/images/access_denied.mp4', $this->ilWebAccessChecker->getPathObject()
                                                                                                                                                ->getFileName());
                $ilFileDelivery->setDisposition($this->ilWebAccessChecker->getDisposition());
                $ilFileDelivery->stream();
        }


        protected function handleAccessErrors(ilWACException $e) {
                if ($this->ilWebAccessChecker->isSendStatusCode()) {
                        ilHTTP::status(401);
                }
                if ($this->ilWebAccessChecker->getPathObject()->isImage()) {
                        $this->deliverDummyImage();
                }
                if ($this->ilWebAccessChecker->getPathObject()->isVideo()) {
                        $this->deliverDummyVideo();
                }
                try {
                        $this->ilWebAccessChecker->initILIAS();
                } catch (ilWACException $ilWACException) {
                }

                global $tpl, $ilLog;
                $ilLog->write($e->getMessage());
                $tpl->setVariable('BASE', strstr($_SERVER['REQUEST_URI'], '/data', true) . '/');
                ilUtil::sendFailure($e->getMessage());
                $tpl->getStandardTemplate();
                $tpl->show();
        }


        protected function handleErrors(ilWACException $e) {
                ilHTTP::status(500);
                echo $e->getMessage();
        }


        protected function deliver() {
                if (!$this->ilWebAccessChecker->isChecked()) {
                        throw new ilWACException(ilWACException::ACCESS_WITHOUT_CHECK);
                }

                $ilFileDelivery = new ilFileDelivery($this->ilWebAccessChecker->getPathObject()->getPath());
                $ilFileDelivery->setCache(false);
                $ilFileDelivery->setDisposition($this->ilWebAccessChecker->getDisposition());
                ilWACLog::getInstance()->write('Deliver file using ' . $ilFileDelivery->getDeliveryType());
                if ($this->ilWebAccessChecker->getPathObject()->isStreamable()) { // fixed 0016468
                        ilWACLog::getInstance()->write('begin streaming');
                        $ilFileDelivery->stream();
                } else {
                        $ilFileDelivery->deliver();
                }
        }
}