/**
* Spam-Validation of given Params
* see powermail/doc/SpamDetection for formula
*
* @param \In2code\Powermail\Domain\Model\Mail $mail
* @return bool
*/
public function isValid($mail)
{
if (!$this->settings['spamshield.']['_enable']) {
return $this->getIsValid();
}
$spamFactor = $this->settings['spamshield.']['factor'] / 100;
// Different checks to increase spam indicator
$this->honeypodCheck($this->settings['spamshield.']['indicator.']['honeypod']);
$this->linkCheck($mail, $this->settings['spamshield.']['indicator.']['link'], $this->settings['spamshield.']['indicator.']['linkLimit']);
$this->nameCheck($mail, $this->settings['spamshield.']['indicator.']['name']);
$this->sessionCheck($mail, $this->settings['spamshield.']['indicator.']['session']);
$this->uniqueCheck($mail, $this->settings['spamshield.']['indicator.']['unique']);
$this->blacklistStringCheck($mail, $this->settings['spamshield.']['indicator.']['blacklistString']);
$this->blacklistIpCheck($this->settings['spamshield.']['indicator.']['blacklistIp']);
// spam formula with asymptote 1 (100%)
if ($this->spamIndicator > 0) {
$thisSpamFactor = -1 / $this->spamIndicator + 1;
} else {
$thisSpamFactor = 0;
}
// Save Spam Factor in session for db storage
$GLOBALS['TSFE']->fe_user->setKey('ses', 'powermail_spamfactor', $this->formatSpamFactor($thisSpamFactor));
$GLOBALS['TSFE']->storeSessionData();
// Spam debugging
if ($this->settings['debug.']['spamshield']) {
GeneralUtility::devLog('Spamshield (Spamfactor ' . $this->formatSpamFactor($thisSpamFactor) . ')', 'powermail', 0, $this->getMessages());
}
// if spam
if ($thisSpamFactor >= $spamFactor) {
$this->addError('spam_details', $this->formatSpamFactor($thisSpamFactor));
$this->setIsValid(FALSE);
// Send notification email to admin
if (GeneralUtility::validEmail($this->settings['spamshield.']['email'])) {
$subject = 'Spam in powermail form recognized';
$message = 'Possible spam in powermail form on page with PID ' . $GLOBALS['TSFE']->id;
$message .= "\n\n";
$message .= 'Spamfactor of this mail: ' . $this->formatSpamFactor($thisSpamFactor) . "\n";
$message .= "\n\n";
$message .= 'Failed Spamchecks:' . "\n";
$message .= Div::viewPlainArray($this->getMessages());
$message .= "\n\n";
$message .= 'Given Form variables:' . "\n";
foreach ($mail->getAnswers() as $answer) {
$message .= $answer->getField()->getTitle();
$message .= ': ';
$message .= $answer->getValue();
$message .= "\n";
}
$header = 'MIME-Version: 1.0' . "\r\n";
$header .= 'Content-type: text/html; charset=utf-8' . "\r\n";
$header .= 'From: powermail@' . GeneralUtility::getIndpEnv('TYPO3_HOST_ONLY') . "\r\n";
GeneralUtility::plainMailEncoded($this->settings['spamshield.']['email'], $subject, $message, $header);
}
}
return $this->getIsValid();
}
