StartUpSequenceDispatcher.php

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<?php declare(strict_types=1);
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

namespace ILIAS\Init\StartupSequence;

use ilContext;
use ILIAS\DI\Container;
use ilSession;
use ilTermsOfServiceAcceptanceStartUpStep;
use ilForcedUserPasswordChangeStartUpStep;
use ilTermsOfServiceWithdrawalStartUpStep;
use ilUserProfileStartUpStep;
use SplQueue;

class StartUpSequenceDispatcher
{
    private $dic;
    private $sequence = [];

    public function __construct(Container $dic)
    {
        $this->dic = $dic;
        $this->initSequence();
    }

    protected function initSequence() : void
    {
        $this->sequence = new SplQueue();
        $this->sequence->push(new ilTermsOfServiceWithdrawalStartUpStep(
            $this->dic
        ));
        $this->sequence->push(new ilTermsOfServiceAcceptanceStartUpStep(
            $this->dic
        ));
        $this->sequence->push(new ilUserProfileStartUpStep(
            $this->dic->user(),
            $this->dic->ctrl()
        ));
        $this->sequence->push(new ilForcedUserPasswordChangeStartUpStep(
            $this->dic->user(),
            $this->dic->ctrl(),
            $this->dic->http()->request()
        ));
    }

    protected function storeRequest() : void
    {
        if (!ilSession::get('orig_request_target')) {
            //#16324 don't use the complete REQUEST_URI
            $url = substr($_SERVER['REQUEST_URI'], (strrpos($_SERVER['REQUEST_URI'], '/') + 1));

            ilSession::set('orig_request_target', $url);
        }
    }

    public function dispatch() : bool
    {
        $this->dic->logger()->init()->debug('Started request interception checks ...');

        if (defined('IL_CERT_SSO')) {
            $this->dic->logger()->init()->debug('ApacheAuthentication request. No interception.');
            return false;
        } elseif (!ilContext::supportsRedirects()) {
            $this->dic->logger()->init()->debug('Context does not support redirects. No interception.');
            return false;
        } elseif ($this->dic->ctrl()->isAsynch()) {
            $this->dic->logger()->init()->debug('Async request. No interception.');
            return false;
        } elseif (in_array(basename($_SERVER['PHP_SELF']), array('logout.php'))) {
            $this->dic->logger()->init()->debug('Logout request. No interception.');
            return false;
        } elseif (!$this->dic->user()->getId() || $this->dic->user()->isAnonymous()) {
            $this->dic->logger()->init()->debug('Anonymous request. No interception.');
            return false;
        } elseif (ilSession::get(__CLASS__ . '_passed')) {
            $this->dic->logger()->init()->debug(__CLASS__ . ' already passed in the current user session.');
            return false;
        }


        $this->sequence->rewind();
        while (!$this->sequence->isEmpty()) {
            $step = $this->sequence->shift();
            
            if ($step->isInFulfillment()) {
                $this->dic->logger()->init()->debug('Step is in fulfillment:' . get_class($step));
                return false;
            }

            if ($step->shouldInterceptRequest()) {
                $this->dic->logger()->init()->debug('Step required adjustment:' . get_class($step));
                if ($step->shouldStoreRequestTarget()) {
                    $this->storeRequest();
                }
                $step->execute();
                return true;
            }
        }

        ilSession::set(__CLASS__ . '_passed', 1);
        return false;
    }
}