/**
* Deletes all files older than a specific time in a temporary upload folder.
* Settings for the threshold time and the folder are made in TypoScript.
*
* Here is an example:
* <code>
* plugin.Tx_Formhandler.settings.files.clearTempFilesOlderThanHours = 24
* plugin.Tx_Formhandler.settings.files.tmpUploadFolder = uploads/formhandler/tmp
* </code>
*
* @param integer $olderThan Delete files older than $olderThan hours.
* @return void
* @author Reinhard Führicht <*****@*****.**>
*/
protected function clearTempFiles($uploadFolder, $olderThanValue, $olderThanUnit)
{
if (!$olderThanValue) {
return;
}
//build absolute path to upload folder
$path = Tx_Formhandler_StaticFuncs::getDocumentRoot() . $uploadFolder;
//read files in directory
$tmpFiles = t3lib_div::getFilesInDir($path);
Tx_Formhandler_StaticFuncs::debugMessage('cleaning_temp_files', array($path));
//calculate threshold timestamp
//hours * 60 * 60 = millseconds
$threshold = Tx_Formhandler_StaticFuncs::getTimestamp($olderThanValue, $olderThanUnit);
//for all files in temp upload folder
foreach ($tmpFiles as $idx => $file) {
//if creation timestamp is lower than threshold timestamp
//delete the file
$creationTime = filemtime($path . $file);
//fix for different timezones
$creationTime += date('O') / 100 * 60;
if ($creationTime < $threshold) {
unlink($path . $file);
Tx_Formhandler_StaticFuncs::debugMessage('deleting_file', array($file));
}
}
}
/**
* Checks if the form got submitted too often and throws Exception if TRUE.
*
* @param int Timebase value
* @param string Timebase unit (seconds|minutes|hours|days)
* @param int maximum amount of submissions in given time base.
* @param boolean add IP address to where clause
* @return void
*/
private function check($value, $unit, $maxValue, $addIPToWhere = TRUE)
{
$timestamp = Tx_Formhandler_StaticFuncs::getTimestamp($value, $unit);
$where = 'crdate >= ' . $timestamp;
if ($addIPToWhere) {
$where = 'ip=\'' . t3lib_div::getIndpEnv('REMOTE_ADDR') . '\' AND ' . $where;
}
$res = $GLOBALS['TYPO3_DB']->exec_SELECTquery('uid,ip,crdate,params', $this->logTable, $where);
if ($res && $GLOBALS['TYPO3_DB']->sql_num_rows($res) >= $maxValue) {
$this->log(TRUE);
$message = 'You are not allowed to send more mails because form got submitted too many times ';
if ($addIPToWhere) {
$message .= 'by your IP address ';
}
$message .= 'in the last ' . $value . ' ' . $unit . '!';
if ($this->settings['report.']['email']) {
while (FALSE !== ($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res))) {
$rows[] = $row;
}
$intervalValue = $this->settings['report.']['interval.']['value'];
$intervalUnit = $this->settings['report.']['interval.']['unit'];
$send = TRUE;
if ($intervalUnit && $intervalValue) {
$intervalTstamp = Tx_Formhandler_StaticFuncs::getTimestamp($intervalValue, $intervalUnit);
$where = 'pid=' . $GLOBALS['TSFE']->id . ' AND crdate>' . $intervalTstamp;
if ($addIPToWhere) {
$where .= ' AND ip=\'' . t3lib_div::getIndpEnv('REMOTE_ADDR') . '\'';
}
$res_log = $GLOBALS['TYPO3_DB']->exec_SELECTquery('uid', $this->reportTable, $where);
if ($res_log && $GLOBALS['TYPO3_DB']->sql_num_rows($res_log) > 0) {
$send = FALSE;
$GLOBALS['TYPO3_DB']->sql_free_result($res_log);
}
}
if ($send) {
if ($addIPToWhere) {
$this->sendReport('ip', $rows);
} else {
$this->sendReport('global', $rows);
}
} else {
Tx_Formhandler_StaticFuncs::debugMessage('alert_mail_not_sent', array(), 2);
}
}
$GLOBALS['TYPO3_DB']->sql_free_result($res);
if ($this->settings['redirectPage']) {
Tx_Formhandler_StaticFuncs::doRedirect($this->settings['redirectPage'], $this->settings['correctRedirectUrl'], $this->settings['additionalParams.']);
Tx_Formhandler_StaticFuncs::debugMessage('redirect_failed', array(), 2);
exit(0);
} else {
throw new Exception($message);
}
}
}