<?php
use asm\core\Config, asm\core\Core, asm\utils\ErrorHandler, asm\core\UiResponse, asm\core\Error;
/**
* @file
* Handles core requests coming from UI.
*
* 1. Starts session.
* 2. Starts the Composer autoloader.
* 3. Loads configuration from the config.ini and internal.ini files.
* 4. Activates the custom error handler.
* 5. Calls Core::handleUiRequest with data from user.
*/
// Session is used to keep track of logged in user, and is used for file uploads.
session_start();
// Load up the Composer-generated autoloader. All PHP classes are loaded using this autoloader.
require_once __DIR__ . "/../vendor/autoload.php";
// Load configuration from the "config.ini" file.
Config::init(__DIR__ . '/config.ini', __DIR__ . '/internal.ini');
// If ever an exception occurs or a PHP error occurs, log it and send it to the user.
ErrorHandler::register();
ErrorHandler::bind(['asm\\core\\Core', 'logException']);
ErrorHandler::bind(function (Exception $e) {
Core::sendUiResponse(UiResponse::create([], [Error::create(Error::levelFatal, $e->getMessage() . "[details: code " . $e->getCode() . ", file " . $e->getFile() . ", line " . $e->getLine() . ", trace: \n" . $e->getTraceAsString() . "]", \asm\core\lang\Language::get(\asm\core\lang\StringID::ServerSideRuntimeError))]));
});
// Process the AJAX request.
// Usually, the Javascript part of XML Check sends a POST request but in some special cases, a GET request is needed.
Core::handleUiRequest(empty($_POST) ? $_GET : $_POST, $_FILES);
protected function body()
{
// Validate input.
$inputs = array('group' => 'isIndex', 'problem' => 'isIndex', 'deadline' => 'isDate', 'reward' => 'isNonNegativeInt');
if (!$this->isInputValid($inputs)) {
return false;
}
// Load input
$id = $this->getParams('id');
$group = $this->getParams('group');
$problem = $this->getParams('problem');
$deadline = $this->getParams('deadline');
$reward = $this->getParams('reward');
// Adjust input
$deadline = $deadline . ' 23:59:59';
// Load from database
/**
* @var $groupEntity \Group
* @var $assignmentEntity \Assignment
* @var $problemEntity \Problem
*/
$groupEntity = Repositories::getEntityManager()->find('Group', $group);
$problemEntity = Repositories::getEntityManager()->find('Problem', $problem);
if ($groupEntity === null || $problemEntity === null) {
return $this->stop('Group or problem does not exist.', 'Assignment cannot be edited.');
}
// Authenticate
$user = User::instance();
if (!$user->hasPrivileges(User::groupsManageAll) && (!$user->hasPrivileges(User::groupsManageOwn) || $groupEntity->getOwner()->getId() !== $user->getId())) {
return $this->stop(Language::get(StringID::InsufficientPrivileges));
}
// Already exists?
if ($id !== null && $id !== '') {
$assignmentEntity = Repositories::getEntityManager()->find('Assignment', $id);
$assignmentEntity->setDeadline(\DateTime::createFromFormat("Y-m-d H:i:s", $deadline));
$assignmentEntity->setReward($reward);
Repositories::getEntityManager()->persist($assignmentEntity);
Repositories::getEntityManager()->flush($assignmentEntity);
} else {
// Verify integrity
if ($problemEntity->getLecture()->getId() !== $groupEntity->getLecture()->getId()) {
return $this->stop('You are adding an assignment for problem belonging to lecture X to a group that belongs to lecture Y. This is not possible.');
}
// Create new
$assignmentEntity = new \Assignment();
$assignmentEntity->setGroup($groupEntity);
$assignmentEntity->setProblem($problemEntity);
$assignmentEntity->setDeadline(\DateTime::createFromFormat("Y-m-d H:i:s", $deadline));
$assignmentEntity->setReward($reward);
Repositories::getEntityManager()->persist($assignmentEntity);
Repositories::getEntityManager()->flush($assignmentEntity);
// Send e-mail
/**
* @var $subscription \Subscription
*/
$query = Repositories::getEntityManager()->createQuery('SELECT s, u FROM Subscription s JOIN s.user u WHERE s.group = :group');
$query->setParameter('group', $groupEntity);
$subscriptions = $query->getResult();
foreach ($subscriptions as $subscription) {
if (!$subscription->getUser()->getSendEmailOnNewAssignment()) {
continue;
}
$to = $subscription->getUser()->getEmail();
$email = file_get_contents(Config::get("paths", "newAssignmentEmail"));
$email = str_replace("%{Problem}", $problemEntity->getName(), $email);
$email = str_replace("%{Deadline}", $deadline, $email);
$email = str_replace("%{Group}", $groupEntity->getName(), $email);
$email = str_replace("%{Link}", Config::getHttpRoot() . "#studentAssignments#" . $assignmentEntity->getId(), $email);
$email = str_replace("%{Date}", date("Y-m-d H:i:s"), $email);
$lines = explode("\n", $email);
$subject = $lines[0];
// The first line is subject.
$text = preg_replace('/^.*\\n/', '', $email);
// Everything except the first line.
if (!Core::sendEmail($to, trim($subject), $text)) {
Core::logError(Error::create(Error::levelWarning, "E-mail could not be sent to {$to}."));
}
}
}
return true;
}
/**
* Logs supplied exception.
* @param Exception $e
* @see logError()
*/
public static function logException(Exception $e)
{
self::logError(Error::create(Error::levelFatal, self::getCustomMessage($e), 'Runtime error', self::getCustomTrace($e)));
}
/**
* Stores error (warning, notice) to be appended to script output.
*
* Sets @ref $failed flag to true if error is level is Error::levelError or higher.
* @param int $level error severity (@ref Error "Error::level*" constant)
* @param mixed $cause error cause code (int) or message (string)
* @param string $effect error effect
* @param string $details additional error info
* @see getErrors()
* @see clearErrors()
*/
protected final function addError($level, $cause, $effect = null, $details = null)
{
$this->errors[] = Error::create($level, $cause, $effect, $details);
if ($level >= Error::levelError) {
$this->failed = true;
}
}