sCookieFile = tempnam('tmp', 'curl');
$this->rCurl = curl_init();
curl_setopt_array($this->rCurl, array(
CURLOPT_COOKIESESSION => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_REFERER => true,
CURLOPT_COOKIEJAR => $this->sCookieFile,
CURLOPT_COOKIEFILE => $this->sCookieFile,
CURLOPT_URL => self::URL_SEMESTER));
parent::__construct();
}
function __destruct() {
curl_close($this->rCurl);
unlink($this->sCookieFile);
}
function setWeek($iYear, $iWeek) {
parent::setWeek($iYear, $iWeek);
$this->sWeek = sprintf('+%d', $this->sWeek);
curl_setopt($this->rCurl, CURLOPT_POST, false);
$this->execute();
$this->bOnGroupsPage = false;
}
function buildQuery($aFields) {
$aQuery = array();
foreach ($aFields as $sKey => $mValue) {
$aQuery[] = sprintf('%s=%s', $sKey, $mValue);
}
return implode('&', $aQuery);
}
function getAspFields() {
if ($this->bOnGroupsPage) {
return $this->aAspFields;
}
preg_match('~id="__VIEWSTATE" value="([^"]+)"~i', $this->sContents, $aViewState);
preg_match('~id="__EVENTVALIDATION" value="([^"]+)"~i', $this->sContents, $aEventValidation);
if (count($aViewState) < 2 || count($aEventValidation) < 2) {
throw new Exception('Failed to get asp fields from contents');
}
return $this->aAspFields = array(
'__VIEWSTATE' => urlencode($aViewState[1]),
'__EVENTVALIDATION' => urlencode($aEventValidation[1]));
}
function setPostFields($aPostFields) {
try {
$aAspFields = $this->getAspFields();
} catch (Exception $e) {
throw new Exception('Failed to get required asp fields from contents');
}
$sQuery = $this->buildQuery(array_merge($aAspFields, $aPostFields));
curl_setopt($this->rCurl, CURLOPT_POSTFIELDS, $sQuery);
}
function execute() {
if (!($sContents = curl_exec($this->rCurl))) {
throw new Exception('Failed to execute request');
}
$this->sContents = $sContents;
}
function loadGroupsPage() {
if ($this->bOnGroupsPage) {
return;
}
try {
/* Enter group selection mode */
$this->setPostFields(array(
'__EVENTTARGET' => 'LinkBtn_studentsets'));
$this->execute();
/* Stay on groups page */
$this->getAspFields();
$this->bOnGroupsPage = true;
} catch (Exception $e) {
throw new Exception('Failed to navigate to groups page');
}
}
function getGroups($aFilters) {
$this->loadGroupsPage();
preg_match('~', $sPart);
$sPart = $aPart[0];
$aGroups = array();
foreach ($aFilters as $sFilter) {
$sRegex = sprintf('~"([^"]+)">%s~i', $sFilter);
preg_match_all($sRegex, $sPart, $aMatches, PREG_SET_ORDER);
foreach ($aMatches as $aMatch) {
$aGroups[$aMatch[1]] = $aMatch[2];
}
}
return $aGroups;
}
function getPage($sObject) {
try {
$this->loadGroupsPage();
/* Select group and period */
$this->setPostFields(array(
'tLinkType' => 'studentsets',
'dlObject' => urlencode($sObject),
'lbWeeks' => $this->sWeek,
'dlType' => urlencode('TextSpreadsheet;SWS_Groep'),
'bGetTimetable' => null));
$this->execute();
return $this->sContents;
} catch (Exception $e) {
throw new Exception('Failed to load page');
}
}
function getData($sRooster = null) {
$aDays = explode('sContents);
if (count($aDays) != 8) {
throw new Exception('Page does not contain valid data');
}
array_shift($aDays);
array_pop($aDays);
array_pop($aDays);
$aData = array();
foreach ($aDays as $iDay => $sDay) {
$aColumns = null;
$aRows = explode('', $sDay);
$sHeader = array_shift($aRows);
if (!isset($aColumns)) {
preg_match_all('~| ([^>]*) | ~', $sHeader, $aMatches);
foreach ($aMatches[1] as $iColumn => $sColumn) {
switch ($sColumn) {
case 'Start':
$aColumns[$iColumn] = 'start';
break;
case 'Einde':
$aColumns[$iColumn] = 'end';
break;
case 'Vaknaam':
$aColumns[$iColumn] = 'course';
break;
case 'Type':
$aColumns[$iColumn] = 'type';
break;
case 'Zalen':
$aColumns[$iColumn] = 'room';
break;
}
}
}
$aData[$iDay] = array();
foreach ($aRows as $sRow) {
$sRow = str_replace('
', null, $sRow);
preg_match_all('~([^>]*) | ~', $sRow, $aMatches);
$aInfo = array();
foreach ($aColumns as $iColumn => $sColumn) {
$aInfo[$sColumn] = $aMatches[1][$iColumn];
}
$aData[$iDay][] = $aInfo;
}
}
return $aData;
}
}