/**
* performs a custom request
*
* @param string $method the request type (POST, DELETE, PUT, GET, ...)
* @param string $target the taget URL
* @param string $header an array with header informations
* @param string $content the request content/body
*
* @return an array with the request result (status, header, content)
* - ['headers'] = an array of header informations e.g. ['headers']['Content-Type']
* - ['content'] = the response content
* - ['status'] = the status code e.g. 200,201,404,409,...
*/
public static function custom($method, $target, $header, $content, $authbool = true, $sessiondelete = false)
{
$begin = microtime(true);
$done = false;
if (!CConfig::$onload && strpos($target, 'http://localhost/') === 0 && file_exists(dirname(__FILE__) . '/request_cconfig.json')) {
if (self::$components === null) {
self::$components = CConfig::loadStaticConfig('', '', dirname(__FILE__), 'request_cconfig.json');
}
$coms = self::$components->getLinks();
if ($coms != null) {
if (!is_array($coms)) {
$coms = array($coms);
}
$e = strlen(rtrim($_SERVER['DOCUMENT_ROOT'], '/'));
$f = substr(str_replace("\\", "/", dirname(__FILE__)), $e);
$g = substr(str_replace("\\", "/", $_SERVER['SCRIPT_FILENAME']), $e);
$a = 0;
for (; $a < strlen($g) && $a < strlen($f) && $f[$a] == $g[$a]; $a++) {
}
$h = substr(str_replace("\\", "/", $_SERVER['PHP_SELF']), 0, $a - 1);
foreach ($coms as $com) {
if ($com->getPrefix() === null || $com->getLocalPath() == null || $com->getClassFile() == null || $com->getClassName() == null) {
Logger::Log('nodata: ' . $method . ' ' . $target, LogLevel::DEBUG, false, dirname(__FILE__) . '/../calls.log');
continue;
}
$url = 'http://localhost' . $h . '/' . $com->getLocalPath();
if (strpos($target, $url . '/') === 0) {
$result = array();
$tar = dirname(__FILE__) . '/../' . $com->getLocalPath() . '/' . $com->getClassFile();
$tar = str_replace("\\", "/", $tar);
if (!file_exists($tar)) {
continue;
}
$add = substr($target, strlen($url));
$sid = CacheManager::getNextSid();
CacheManager::getTree($sid, $target, $method);
$cachedData = CacheManager::getCachedDataByURL($sid, $target, $method);
if ($cachedData !== null) {
$result['content'] = $cachedData->content;
$result['status'] = $cachedData->status;
///Logger::Log('out>> '.$method.' '.$target, LogLevel::DEBUG, false, dirname(__FILE__) . '/../calls.log');
CacheManager::cacheData($sid, $com->getTargetName(), $target, $result['content'], $result['status'], $method);
} else {
$args = array('REQUEST_METHOD' => $method, 'PATH_INFO' => $add, 'slim.input' => $content);
if (isset($_SERVER['HTTP_SESSION'])) {
$args['HTTP_SESSION'] = $_SERVER['HTTP_SESSION'];
}
if (isset($_SERVER['HTTP_USER'])) {
$args['HTTP_USER'] = $_SERVER['HTTP_USER'];
}
if ($authbool) {
if (isset($_SESSION['UID'])) {
$args['HTTP_USER'] = $_SESSION['UID'];
$_SERVER['HTTP_USER'] = $_SESSION['UID'];
}
if (isset($_SESSION['SESSION'])) {
$args['HTTP_SESSION'] = $_SESSION['SESSION'];
$_SERVER['HTTP_SESSION'] = $_SESSION['SESSION'];
}
if ($sessiondelete) {
if (isset($_SERVER['REQUEST_TIME'])) {
$args['HTTP_DATE'] = $_SERVER['REQUEST_TIME'];
$_SERVER['HTTP_DATE'] = $_SERVER['REQUEST_TIME'];
}
} else {
if (isset($_SESSION['LASTACTIVE'])) {
$args['HTTP_DATE'] = $_SESSION['LASTACTIVE'];
$_SERVER['HTTP_DATE'] = $_SESSION['LASTACTIVE'];
}
}
}
if (isset($_SERVER['HTTP_DATE'])) {
$args['HTTP_DATE'] = $_SERVER['HTTP_DATE'];
}
$oldArgs = array('REQUEST_METHOD' => \Slim\Environment::getInstance()->offsetGet('REQUEST_METHOD'), 'PATH_INFO' => \Slim\Environment::getInstance()->offsetGet('PATH_INFO'), 'slim.input' => \Slim\Environment::getInstance()->offsetGet('slim.input'), 'HTTP_DATE' => \Slim\Environment::getInstance()->offsetGet('HTTP_DATE'), 'HTTP_USER' => \Slim\Environment::getInstance()->offsetGet('HTTP_USER'), 'HTTP_SESSION' => \Slim\Environment::getInstance()->offsetGet('HTTP_SESSION'), 'REQUEST_TIME' => \Slim\Environment::getInstance()->offsetGet('REQUEST_TIME'));
$oldRequestURI = $_SERVER['REQUEST_URI'];
$oldScriptName = $_SERVER['SCRIPT_NAME'];
///$oldRedirectURL = $_SERVER['REDIRECT_URL'];
///echo "old: ".$_SERVER['REQUEST_URI']."\n";
$_SERVER['REQUEST_URI'] = substr($target, strlen('http://localhost/') - 1);
//$tar.$add;
///$_SERVER['REDIRECT_URL']= substr($target,strlen('http://localhost/')-1);
///echo "mein: ".substr($target,strlen('http://localhost/')-1)."\n";
$_SERVER['SCRIPT_NAME'] = $h . '/' . $com->getLocalPath() . '/' . $com->getClassFile();
//$tar;
$_SERVER['QUERY_STRING'] = '';
$_SERVER['REQUEST_METHOD'] = $method;
\Slim\Environment::mock($args);
include_once $tar;
$oldStatus = http_response_code();
$oldHeader = array_merge(array(), headers_list());
header_remove();
http_response_code(0);
$name = $com->getClassName();
try {
ob_start();
$obj = new $name();
if (isset($obj)) {
unset($obj);
}
$result['content'] = ob_get_contents();
CacheManager::setETag($result['content']);
$result['headers'] = array_merge(array(), self::http_parse_headers_short(headers_list()));
header_remove();
if (!isset($result['headers']['Cachesid'])) {
$newSid = CacheManager::getNextSid();
$result['headers']['Cachesid'] = $newSid;
}
ob_end_clean();
//header_remove();
$result['status'] = http_response_code();
} catch (Exception $e) {
error_log($e->getMessage());
header_remove();
$result['status'] = '500';
$result['content'] = '';
$result['headers'] = array();
}
$_SERVER['REQUEST_URI'] = $oldRequestURI;
$_SERVER['SCRIPT_NAME'] = $oldScriptName;
//$_SERVER['REDIRECT_URL'] = $oldRedirectURL;
\Slim\Environment::mock($oldArgs);
$_SERVER['REQUEST_METHOD'] = $oldArgs['REQUEST_METHOD'];
http_response_code($oldStatus);
header('Content-Type: text/html; charset=utf-8');
foreach ($oldHeader as $head) {
header($head);
}
CacheManager::setCacheSid($sid);
$targetSid = isset($result['headers']['Cachesid']) ? $result['headers']['Cachesid'] : null;
CacheManager::addPath($sid, $targetSid, $com->getTargetName(), $target, $method, $result['status']);
CacheManager::finishRequest($targetSid, $h . '/' . $com->getLocalPath(), $com->getTargetName(), $target, $result['content'], $result['status'], $method, $content);
CacheManager::cacheData($sid, $com->getTargetName(), $target, $result['content'], $result['status'], $method);
///Logger::Log('in<< '.$method.' '.$com->getClassName().$add, LogLevel::DEBUG, false, dirname(__FILE__) . '/../calls.log');
}
$done = true;
break;
}
}
}
}
if (!$done) {
// creates a custom request
Logger::Log("--" . $method . ' ' . $target, LogLevel::DEBUG, false, dirname(__FILE__) . '/../calls.log');
$ch = Request_CreateRequest::createCustom($method, $target, $header, $content, $authbool, $sessiondelete)->get();
$content = curl_exec($ch);
// get the request result
$result = curl_getinfo($ch);
$header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
// splits the received header info, to create an entry
// in the $result['headers'] for each part of the header
$result['headers'] = self::http_parse_headers(substr($content, 0, $header_size));
// seperates the content part
$result['content'] = substr($content, $header_size);
// sets the received status code
$result['status'] = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
}
Logger::Log($target . ' ' . round(microtime(true) - $begin, 2) . 's', LogLevel::DEBUG, false, dirname(__FILE__) . '/../executionTime.log');
return $result;
}
/**
* creates an DELETE curl request object
*
* @param $target the taget URL
* @param $header an array with header informations
* @param $content the request content/body
*
* @return an curl request object
*/
public static function createDelete($target, $header, $content, $authbool = true, $sessiondelete = false)
{
return Request_CreateRequest::createCustom("DELETE", $target, $header, $content, $authbool, $sessiondelete);
}
public function getZip($userid, $sheetid, $status = null)
{
$multiRequestHandle = new Request_MultiRequest();
$filesList = array();
//request to database to get the markings
$handler = Request_CreateRequest::createCustom('GET', $this->_getMarking[0]->getAddress() . '/marking/exercisesheet/' . $sheetid . '/tutor/' . $userid, array(), "");
$multiRequestHandle->addRequest($handler);
$answer = $multiRequestHandle->run();
if (count($answer) < 1 || !isset($answer[0]['status']) || $answer[0]['status'] != 200 || !isset($answer[0]['content'])) {
$this->app->response->setStatus(404);
$this->app->response->setBody('');
$this->app->stop();
}
$markings = json_decode($answer[0]['content'], true);
if (isset($status)) {
$marks = array();
foreach ($markings as $marking) {
if (isset($marking['status']) && $marking['status'] == $status) {
$marks[] = $marking;
}
}
$markings = $marks;
}
$answer = $this->generateTutorArchive($userid, $sheetid, $markings);
$this->app->response->setStatus($answer['status']);
$this->app->response->setBody($answer['content']);
}
}
$fileString = json_encode($files);
$zipfile = http_post_data($filesystemURI . '/zip', $fileString, true);
$zipfile = File::decodeFile($zipfile);
$zipfile->setDisplayName('attachments.zip');
$zipfile = File::encodeFile($zipfile);
echo $zipfile;
exit(0);
} elseif (isset($_GET['downloadMarkings'])) {
checkPermission(PRIVILEGE_LEVEL::STUDENT);
$sid = $_GET['downloadMarkings'];
$multiRequestHandle = new Request_MultiRequest();
//request to database to get the markings
$handler = Request_CreateRequest::createCustom('GET', "{$logicURI}/DB/marking/exercisesheet/{$sid}/user/{$uid}", array(), '');
$multiRequestHandle->addRequest($handler);
$handler = Request_CreateRequest::createCustom('GET', "{$logicURI}/DB/exercisesheet/exercisesheet/{$sid}/exercise", array(), '');
$multiRequestHandle->addRequest($handler);
$answer = $multiRequestHandle->run();
$markings = json_decode($answer[0]['content'], true);
$sheet = json_decode($answer[1]['content'], true);
$exercises = $sheet['exercises'];
//an array to descripe the subtasks
$alphabet = range('a', 'z');
$count = 0;
$namesOfExercises = array();
$attachments = array();
$count = null;
foreach ($exercises as $key => $exercise) {
$exerciseId = $exercise['id'];
if (isset($exercise['attachments'])) {
$attachments[$exerciseId] = $exercise['attachments'];
/**
* Compiles data for the Condition site.
*
* @warning If there is more than one condition assigned to the same
* exercise type it is undefined which condition will be evaluated. This
* might even change per user!.
*
* @author Florian Lücke
*/
public function checkCondition($userid, $courseid)
{
// load all the data
$multiRequestHandle = new Request_MultiRequest();
$URL = $this->_getExerciseType->getAddress() . '/exercisetype';
$handler = Request_CreateRequest::createCustom('GET', $URL, array(), '');
$multiRequestHandle->addRequest($handler);
$URL = $this->_getExercise->getAddress() . '/exercise/course/' . $courseid . '/nosubmission';
$handler = Request_CreateRequest::createCustom('GET', $URL, array(), '');
$multiRequestHandle->addRequest($handler);
$URL = $this->_getApprovalCondition->getAddress() . '/approvalcondition/course/' . $courseid;
$handler = Request_CreateRequest::createCustom('GET', $URL, array(), '');
$multiRequestHandle->addRequest($handler);
$URL = $this->_getUser->getAddress() . '/user/course/' . $courseid . '/status/0';
$handler = Request_CreateRequest::createCustom('GET', $URL, array(), '');
$multiRequestHandle->addRequest($handler);
$URL = $this->_getGroup->getAddress() . '/group/course/' . $courseid;
$handler = Request_CreateRequest::createGet($URL, array(), '');
$multiRequestHandle->addRequest($handler);
$answer = $multiRequestHandle->run();
$possibleExerciseTypes = json_decode($answer[0]['content'], true);
$exercises = json_decode($answer[1]['content'], true);
$approvalconditions = json_decode($answer[2]['content'], true);
$students = json_decode($answer[3]['content'], true);
$groups = json_decode($answer[4]['content'], true);
// preprocess the data to make it quicker to get specific values
$exerciseTypes = array();
foreach ($possibleExerciseTypes as $exerciseType) {
$exerciseTypes[$exerciseType['id']] = $exerciseType;
}
$exercisesById = array();
foreach ($exercises as $exercise) {
$exercisesById[$exercise['id']] = $exercise;
}
$exercisesByType = array();
foreach ($exercises as $exercise) {
if (!isset($exercisesByType[$exercise['type']])) {
$exercisesByType[$exercise['type']] = array();
}
unset($exercise['submissions']);
$exercisesByType[$exercise['type']][] = $exercise;
}
// calculate the maximum number of points that a user could get
// for each exercise type
$maxPointsByType = array();
foreach ($exercisesByType as $type => $exercises) {
$maxPointsByType[$type] = array_reduce($exercises, function ($value, $exercise) {
if ($exercise['bonus'] == null || $exercise['bonus'] == '0') {
// only count the
$value += $exercise['maxPoints'];
}
return $value;
}, 0);
}
$approvalconditionsByType = array();
foreach ($approvalconditions as &$condition) {
// add the name of the exercise type to the approvalcondition
$typeID = $condition['exerciseTypeId'];
$condition['exerciseType'] = $exerciseTypes[$typeID]['name'];
// prepare percenteages for the UI
$condition['minimumPercentage'] = $condition['percentage'] * 100;
$condition['approvalConditionId'] = $condition['id'];
unset($condition['id']);
// sort approvalconditions by exercise type
/**
* @warning this implies that there is *only one* approval
* condition per exercise type!
*/
$exerciseTypeID = $condition['exerciseTypeId'];
if (isset($maxPointsByType[$exerciseTypeID])) {
$condition['maxPoints'] = $maxPointsByType[$exerciseTypeID];
} else {
$condition['maxPoints'] = 0;
}
$approvalconditionsByType[$exerciseTypeID] = $condition;
}
// get all markings
$allMarkings = array();
$URL = $this->_getMarking->getAddress() . '/marking/course/' . $courseid;
$answer = Request::custom('GET', $URL, array(), '');
$markings = json_decode($answer['content'], true);
foreach ($markings as $marking) {
if (isset($marking['submission']['selectedForGroup']) && $marking['submission']['selectedForGroup'] == 1) {
$allMarkings[] = $marking;
}
}
unset($markings);
$allGroups = array();
foreach ($groups as $group) {
if (!isset($allGroups[$group['sheetId']])) {
$allGroups[$group['sheetId']] = array();
}
$allGroups[$group['sheetId']][$group['leader']['id']] = $group;
}
unset($groups);
// done preprocessing
// actual computation starts here
// add up points that each student reached in a specific exercise type
$studentMarkings = array();
foreach ($allMarkings as $marking) {
$studentID = $marking['submission']['studentId'];
$leaderID = $marking['submission']['leaderId'];
if (!isset($studentMarkings[$studentID])) {
$studentMarkings[$studentID] = array();
}
if (!isset($marking['submission']['accepted']) || $marking['submission']['accepted'] == 0) {
continue;
}
$exerciseID = $marking['submission']['exerciseId'];
$sheetID = $marking['submission']['exerciseSheetId'];
$exerciseType = $exercisesById[$exerciseID]['type'];
if (!isset($studentMarkings[$studentID][$exerciseType])) {
$studentMarkings[$studentID][$exerciseType] = 0;
}
$studentMarkings[$leaderID][$exerciseType] += isset($marking['points']) ? $marking['points'] : 0;
if (isset($allGroups[$sheetID][$leaderID])) {
$group = $allGroups[$sheetID][$leaderID];
if (isset($group['members'])) {
foreach ($group['members'] as $member) {
if (!isset($studentMarkings[$member['id']])) {
$studentMarkings[$member['id']] = array();
}
if (!isset($studentMarkings[$member['id']][$exerciseType])) {
$studentMarkings[$member['id']][$exerciseType] = 0;
}
$studentMarkings[$member['id']][$exerciseType] += isset($marking['points']) ? $marking['points'] : 0;
}
}
}
}
$resultStudents = array();
foreach ($students as $student) {
if (!isset($student['id'])) {
continue;
}
if (isset($student['courses'])) {
unset($student['courses']);
}
if (isset($student['attachments'])) {
unset($student['attachments']);
}
$student['percentages'] = array();
$allApproved = true;
// iteraterate over all conditions, this will also filter out the
// exercisetypes that are not needed for this course
foreach ($approvalconditionsByType as $typeID => $condition) {
$thisPercentage = array();
$thisPercentage['exerciseTypeID'] = $typeID;
$thisPercentage['exerciseType'] = $exerciseTypes[$typeID]['name'];
// check if it was possible to get points for this exercisetype
if (!isset($maxPointsByType[$typeID])) {
Logger::Log("Unmatchable condition: " . $condition['approvalConditionId'] . "in course: " . $courseid, LogLevel::WARNING);
$maxPointsByType[$typeID] = 0;
}
if ($maxPointsByType[$typeID] == 0) {
$thisPercentage['percentage'] = '100';
$thisPercentage['isApproved'] = true;
$thisPercentage['maxPoints'] = 0;
if (isset($student['id']) && isset($studentMarkings[$student['id']]) && isset($studentMarkings[$student['id']][$typeID])) {
$points = $studentMarkings[$student['id']][$typeID];
$thisPercentage['points'] = $points;
} elseif (isset($student['id'])) {
$thisPercentage['points'] = 0;
}
} else {
// check if there are points for this
// student-exerciseType combination
if (isset($student['id']) && isset($studentMarkings[$student['id']]) && isset($studentMarkings[$student['id']][$typeID])) {
// the user has points for this exercise type
$points = $studentMarkings[$student['id']][$typeID];
$maxPoints = $maxPointsByType[$typeID];
$percentage = $points / $maxPoints;
$percentageNeeded = $condition['percentage'];
$thisPercentage['points'] = $points;
$thisPercentage['maxPoints'] = $maxPoints;
$typeApproved = $percentage >= $percentageNeeded;
$allApproved = $allApproved && $typeApproved;
$thisPercentage['isApproved'] = $typeApproved;
$thisPercentage['percentage'] = round($percentage * 100, 2);
} elseif (isset($student['id'])) {
// there are no points for the user for this
// exercise type
$thisPercentage['percentage'] = 0;
$thisPercentage['points'] = 0;
$maxPoints = $maxPointsByType[$typeID];
$thisPercentage['maxPoints'] = $maxPoints;
$typeApproved = $maxPoints == 0;
$thisPercentage['isApproved'] = $typeApproved;
$allApproved = $allApproved && $typeApproved;
}
}
$student['percentages'][] = $thisPercentage;
}
$student['isApproved'] = $allApproved;
$resultStudents[] = $student;
}
$students = $resultStudents;
$this->flag = 1;
$response['user'] = $this->userWithCourse($userid, $courseid);
if (isset($students)) {
$response['users'] = $students;
}
$response['minimumPercentages'] = array_values($approvalconditionsByType);
$this->app->response->setBody(json_encode($response));
}
