<?php
HandleParameters();
/**
* Handles the API paramenters.
*/
function HandleParameters()
{
$getAction = Request::get('action', 0, 'string');
if ($getAction == "roominfo") {
$roomIDs = Request::get('id', 0, 'string');
$array = filterIdList($roomIDs);
$getCoords = Request::get('coords', 0, 'string');
if (empty($getCoords)) {
$getCoords = '0';
}
echo getRoomInfo($array, $getCoords);
} elseif ($getAction == "openingtime") {
$roomIDs = Request::get('id', 0, 'string');
$array = filterIdList($roomIDs);
echo getOpeningTime($array);
} elseif ($getAction == "config") {
$getRoomID = Request::get('id', 0, 'int');
getConfig($getRoomID);
} elseif ($getAction == "pcstates") {
$roomIDs = Request::get('id', 0, 'string');
$array = filterIdList($roomIDs);
echo getPcStates($array);
} elseif ($getAction == "roomtree") {
$roomIDs = Request::get('id', 0, 'string');
$array = filterIdList($roomIDs);
echo getRoomTree($array);
} elseif ($getAction == "calendar") {
$roomIDs = Request::get('id', 0, 'string');
$array = filterIdList($roomIDs);
echo getCalendar($array);
}
}
/**
* Filters the id list. Removes Double / non-int / hidden rooms.
*
* @param $roomids Array of the room ids.
* @return array The filtered array of the room ids.
*/
function filterIdList($roomids)
{
$idList = explode(',', $roomids);
$filteredIdList = array_filter($idList, 'is_numeric');
$filteredIdList = array_unique($filteredIdList);
$filteredIdList = filterHiddenRoom($filteredIdList);
return $filteredIdList;
}
/**
* Filters the hidden rooms from an array.
*
* @param $idArray Id list
* @return array Filtered id list
*/
function filterHiddenRoom($idArray)
{
$filteredArray = array();
if (!empty($idArray)) {
$query = "SELECT locationid, hidden FROM `location_info` WHERE locationid IN (";
$query .= implode(",", $idArray);
$query .= ")";
$dbquery = Database::simpleQuery($query);
while ($dbresult = $dbquery->fetch(PDO::FETCH_ASSOC)) {
if ($dbresult['hidden'] == false) {
$filteredArray[] = $dbresult['locationid'];
}
}
}
return $filteredArray;
}
// ########## <Roominfo> ##########
/**
* Gets the room info of the given rooms.
*
* @param $idList Array list of ids.
* @param bool $coords Defines if coords should be included or not.
* @return string Roominfo JSON
*/
function getRoomInfo($idList, $coords = false)
{
$coordinates = (string)$coords;
$dbresult = array();
if (!empty($idList)) {
// Build SQL Query for multiple ids.
$query = "SELECT m.locationid, machineuuid, position, logintime, lastseen, lastboot FROM `machine` AS m LEFT JOIN location_info AS l ON l.locationid = m.locationid WHERE l.hidden = 0 AND m.locationid IN (";
$query .= implode(",", $idList);
$query .= ")";
$query .= " ORDER BY m.locationid ASC";
// Execute query.
$dbquery = Database::simpleQuery($query);
$currentlocationid = 0;
$pclist = array();
// Fetch db data.
while ($dbdata = $dbquery->fetch(PDO::FETCH_ASSOC)) {
// Set the id if the locationid changed.
if (!isset($dbresult[$dbdata['locationid']])) {
$dbresult[$dbdata['locationid']] = array('id' => $dbdata['locationid'], 'computer' => array());
}
// Compact the pc data in one array.
$pc['id'] = $dbdata['machineuuid'];
if ($coordinates == '1' || $coordinates == 'true') {
$position = json_decode($dbdata['position'], true);
$pc['x'] = $position['gridCol'];
$pc['y'] = $position['gridRow'];
if (isset($position['overlays'])) {
$pc['overlay'] = $position['overlays'];
} else {
$pc['overlay'] = array();
}
}
$pc['pcState'] = LocationInfo::getPcState($dbdata);
// Add the array to the computer list.
$dbresult[$dbdata['locationid']]['computer'][] = $pc;
}
}
// The array keys are only used for the isset -> Return only the values.
return json_encode(array_values($dbresult), true);
}
// ########## </Roominfo> ###########
// ########## <Openingtime> ##########
/**
* Gets the Opening time of the given locations.
*
* @param $idList Array list of locations
* @return string Opening times JSON
*/
function getOpeningTime($idList)
{
$dbresult = array();
if (!empty($idList)) {
// Build SQL Query for multiple ids.
$query = "SELECT locationid, openingtime FROM `location_info` WHERE locationid IN (";
$query .= implode(",", $idList);
$query .= ")";
// Execute query.
$dbquery = Database::simpleQuery($query);
$handledIds = array();
while ($dbdata = $dbquery->fetch(PDO::FETCH_ASSOC)) {
$data['id'] = $dbdata['locationid'];
$data['openingtime'] = json_decode($dbdata['openingtime'], true);
$handledIds[] = $data['id'];
$dbresult[] = $data;
}
}
$finalArray = array();
$idList = array_diff($idList, $handledIds);
foreach ($idList as $id) {
$data['id'] = $id;
$data['openingtime'] = array();
$dbresult[] = $data;
}
// Go through the db entrys [id] = id; [openingtime] = e.g. [{"days":["Saturday","Sunday"],"openingtime":"12:32","closingtime":"14:35"}]
foreach ($dbresult as $entry) {
$tmp = array();
// Get the parents time if there is no openingtime defined.
if (count($entry['openingtime']) == 0) {
//$tmp = getOpeningTimesFromParent($entry['id']);
$tmp['id'] = $entry['id'];
$tmp['openingtime'] = getOpeningTimesFromParent($entry['id']);
} else {
$tmp['id'] = $entry['id'];
$tmp['openingtime'] = formatOpeningtime($entry['openingtime']);
}
$finalArray[] = $tmp;
}
return json_encode($finalArray, true);
}
/**
* Format the openingtime in the frontend needed format.
*
* @param $openingtime The opening time in the db saved format.
* @return mixed The opening time in the frontend needed format.
*/
function formatOpeningtime($openingtime)
{
$weekarray = array("Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday");
foreach ($weekarray as $d) {
$array = array();
foreach ($openingtime as $opt) {
foreach ($opt['days'] as $val) {
if ($val == $d) {
$arr = array();
$openTime = explode(':', $opt['openingtime']);
$arr['HourOpen'] = $openTime[0];
$arr['MinutesOpen'] = $openTime[1];
$closeTime = explode(':', $opt['closingtime']);
$arr['HourClose'] = $closeTime[0];
$arr['MinutesClose'] = $closeTime[1];
$array[] = $arr;
}
}
if (!empty($array)) {
$result[$d] = $array;
}
}
}
return $result;
}
/**
* Recursively gets the opening time from the parent location.
*
* @param $locationID Id of the location you want to get the parent opening time.
* @return array|mixed The opening time from the parent location.
*/
function getOpeningTimesFromParent($locationID)
{
// Get parent location id.
$dbquery = Database::queryFirst("SELECT parentlocationid FROM `location` WHERE locationid = :locationID", array('locationID' => $locationID));
$parentlocationid = 0;
$parentlocationid = (int)$dbquery['parentlocationid'];
if ($parentlocationid == 0) {
return createBasicClosingTime();
} else {
$dbquery = Database::queryFirst("SELECT openingtime FROM `location_info` WHERE locationid = :locationID", array('locationID' => $parentlocationid));
$dbresult = json_decode($dbquery['openingtime'], true);
if (count($dbresult) == 0) {
return getOpeningTimesFromParent($parentlocationid);
} else {
return formatOpeningtime($dbresult);
}
}
}
/**
* Creates the basic opening time where everything is closed.
*
* @return array Basic opening time.
*/
function createBasicClosingTime()
{
$weekarray = array("Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday");
$array = array();
foreach ($weekarray as $d) {
$a = array();
$arr['HourOpen'] = '00';
$arr['MinutesOpen'] = '00';
$arr['HourClose'] = '23';
$arr['MinutesClose'] = '59';
$a[] = $arr;
$array[$d] = $a;
}
return $array;
}
// ########## </Openingtime> ##########
/**
* Gets the config of the location.
*
* @param $locationID ID of the location
*/
function getConfig($locationID)
{
$dbresult = Database::queryFirst("SELECT l.locationname, li.config, li.serverroomid, s.servertype, s.serverurl FROM `location_info` AS li
RIGHT JOIN `location` AS l ON l.locationid=li.locationid
LEFT JOIN `setting_location_info` AS s ON s.serverid=li.serverid
WHERE l.locationid=:locationID", array('locationID' => $locationID));
$config = array();
$config = json_decode($dbresult['config'], true);
$config['room'] = $dbresult['locationname'];
$date = getdate();
$config['time'] = $date['year'] . "-" . $date['mon'] . "-" . $date['mday'] . " " . $date['hours'] . ":" . $date['minutes'] . ":" . $date['seconds'];
if ($dbresult['servertype'] === "Frontend") {
$config['calendarqueryurl'] = $dbresult['serverurl'] . "/" . $dbresult['serverroomid'] . ".json";
}
if (empty($config)) {
echo json_encode(array());
} else {
echo json_encode($config, JSON_UNESCAPED_SLASHES);
}
}
/**
* Gets the pc states of the given locations.
*
* @param $idList Array list of the location ids.
* @return string PC state JSON
*/
function getPcStates($idList)
{
$pcStates = array();
$roominfoList = json_decode(getRoomInfo($idList), true);
foreach ($roominfoList as $roomInfo) {
$result['id'] = $roomInfo['id'];
$idle = 0;
$occupied = 0;
$off = 0;
$broken = 0;
foreach ($roomInfo['computer'] as $computer) {
if ($computer['pcState'] == 0) {
$idle++;
} elseif ($computer['pcState'] == 1) {
$occupied++;
} elseif ($computer['pcState'] == 2) {
$off++;
} elseif ($computer['pcState'] == 3) {
$broken++;
}
}
$result['idle'] = $idle;
$result['occupied'] = $occupied;
$result['off'] = $off;
$result['broken'] = $broken;
$pcStates[] = $result;
}
return json_encode($pcStates);
}
/**
* Gets the room tree of the given locations.
*
* @param $idList Array list of the locations.
* @return string Room tree JSON.
*/
function getRoomTree($idList)
{
$roomTree = array();
$filteredIdList = array();
foreach ($idList as $id) {
$dbresult = Database::queryFirst("SELECT locationname FROM `location` WHERE locationid=:locationID", array('locationID' => $id));
if (!in_array($id, $filteredIdList)) {
$a['id'] = $id;
$a['name'] = $dbresult['locationname'];
$filteredIdList[] = $id;
$a['childs'] = getChildsRecursive($id, $filteredIdList);
$roomTree[] = $a;
}
}
return json_encode($roomTree);
}
/**
* Recursively gets the Childs of a location.
*
* @param $id Location id you want all childs from.
* @param $filteredIdList Pointer to the filtered list to avoid double ids.
* @return array List with all the Childs.
*/
function getChildsRecursive($id, &$filteredIdList)
{
$dbquery = Database::simpleQuery("SELECT locationid, locationname FROM `location` WHERE parentlocationid=:locationID", array('locationID' => $id));
$array = array();
$dbarray = array();
while ($dbresult = $dbquery->fetch(PDO::FETCH_ASSOC)) {
$dbarray[] = $dbresult;
}
foreach ($dbarray as $db) {
$i = $db['locationid'];
if (!in_array($i, $filteredIdList)) {
$a['id'] = $i;
$a['name'] = $db['locationname'];
$filteredIdList[] = $i;
$a['childs'] = getChildsRecursive($i, $filteredIdList);
$array[] = $a;
}
}
return $array;
}
// ########## <Calendar> ###########
/**
* Gets the calendar of the given ids.
*
* @param $idList Array list with the location ids.
* @return string Calendar JSON.
*/
function getCalendar($idList)
{
$serverList = array();
if (!empty($idList)) {
// Build SQL query for multiple ids.
$query = "SELECT locationid, l.serverid AS serverid, serverurl, servertype, credentials FROM `location_info` AS l LEFT JOIN setting_location_info AS s ON s.serverid = l.serverid WHERE locationid IN (";
$query .= implode(",", $idList);
$query .= ") AND l.serverid = s.serverid ORDER BY servertype ASC, locationid ASC";
$dbquery = Database::simpleQuery($query);
$first = true;
$lastservertype = "";
while ($dbresult = $dbquery->fetch(PDO::FETCH_ASSOC)) {
if (!isset($serverList[$dbresult['serverid']])) {
$serverList[$dbresult['serverid']] = array('credentials' => json_decode($dbresult['credentials'], true), 'url' => $dbresult['serverurl'], 'type' => $dbresult['servertype'], 'idlist' => array());
}
$serverList[$dbresult['serverid']]['idlist'][] = $dbresult['locationid'];
}
}
$resultarray = array();
foreach ($serverList as $serverid => $server) {
$serverInstance = CourseBackend::getInstance($server['type']);
$setCred = $serverInstance->setCredentials($server['credentials'], $server['url'], $serverid);
$calendarFromBackend = array();
if ($setCred) {
$calendarFromBackend = $serverInstance->fetchSchedule($server['idlist']);
}
$formattedArray = array();
if ($calendarFromBackend === false || $setCred === false) {
$error['timestamp'] = time();
$error['error'] = $serverInstance->getError();
Database::exec("UPDATE `setting_location_info` SET error=:error WHERE serverid=:id", array('id' => $serverid, 'error' => json_encode($error, true)));
} else {
Database::exec("UPDATE `setting_location_info` SET error=NULL WHERE serverid=:id", array('id' => $serverid));
}
if (is_array($calendarFromBackend)) {
foreach ($calendarFromBackend as $key => $value) {
$y['id'] = $key;
$y['calendar'] = $value;
$formattedArray[] = $y;
}
$resultarray = array_merge($resultarray, $formattedArray);
}
}
return json_encode($resultarray, true);
}
// ########## </Calendar> ##########
