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<?php
class Coursebackend_Davinci extends CourseBackend
{
private $location;
public function setCredentials($json, $location, $serverID)
{
$this->location = $location . "/DAVINCIIS.dll?";
$this->serverID = $serverID;
//Davinci doesn't have credentials
$this->checkConnection();
return $this->error;
}
public function checkConnection()
{
if ($this->location != "") {
$this->fetchSchedulesInternal('B206');
return $this->error;
}
$this->error = false;
$this->errormsg = "No url is given";
return $this->error;
}
public function getCredentials()
{
$return = array();
return $return;
}
public function getDisplayName()
{
return 'Davinci';
}
public function getCacheTime()
{
return 0;
}
public function getRefreshTime()
{
return 0;
}
private function toArray($response)
{
$cleanresponse = preg_replace("/(<\/?)(\w+):([^>]*>)/", "$1$2$3", $response);
$xml = new SimpleXMLElement($cleanresponse);
$array = json_decode(json_encode((array)$xml), true);
return $array;
}
private function fetchArray($roomId)
{
$startDate = new DateTime('monday this week');
$endDate = new DateTime('sunday');
$url = $this->location . "content=xml&type=room&name=" . $roomId . "&startdate=" . $startDate->format('d.m.Y') . "&enddate=" . $endDate->format('d.m.Y');
$ch = curl_init();
$options = array(
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_SSL_VERIFYHOST => false,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_URL => $url,
);
curl_setopt_array($ch, $options);
$output = curl_exec($ch);
if ($output === false) {
$this->error = true;
$this->errormsg = 'Curl error: ' . curl_error($ch);
return 'Curl error: ' . curl_error($ch);
} else {
$this->error = false;
$this->errormsg = "";
///Operation completed successfully
}
curl_close($ch);
return $this->toArray($output);
}
public function fetchSchedulesInternal($roomIds)
{
$schedules = [];
try {
foreach ($roomIds as $sroomId) {
$return = $this->fetchArray($sroomId);
$lessons = $return['Lessons']['Lesson'];
$timetable = [];
foreach ($lessons as $lesson) {
$date = $lesson['Date'];
$date = substr($date, 0, 4) . '-' . substr($date, 4, 2) . '-' . substr($date, 6, 2);
$start = $lesson['Start'];
$start = substr($start, 0, 2) . ':' . substr($start, 2, 2);
$end = $lesson['Finish'];
$end = substr($end, 0, 2) . ':' . substr($end, 2, 2);
$subject = $lesson['Subject'];
$json = array(
'title' => $subject,
'start' => $date . " " . $start . ':00',
'end' => $date . " " . $end . ':00'
);
array_push($timetable, $json);
}
$timetable = json_encode($timetable);
$schedules[$sroomId] = $timetable;
}
} catch (Exception $e) {
$this->error = true;
$this->errormsg = $e->getMessage();
}
return $schedules;
}
}
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