function event_hook($event, &$bag, &$eventData, $addData = null)
{
global $serendipity;
$hooks =& $bag->get('event_hooks');
if (isset($hooks[$event])) {
switch ($event) {
case 'frontend_saveComment':
if (!is_array($eventData) || serendipity_db_bool($eventData['allow_comments'])) {
$serendipity['csuccess'] = 'true';
// Check for IP listed in RBL
require_once (defined('S9Y_PEAR_PATH') ? S9Y_PEAR_PATH : 'bundled-libs/') . 'Net/DNSBL.php';
$dnsbl = new Net_DNSBL();
$remoteIP = $_SERVER['REMOTE_ADDR'];
$dnsbl->setBlacklists(explode(',', $this->get_config('rbllist')));
if ($dnsbl->isListed($remoteIP)) {
$eventData = array('allow_comments' => false);
// old - but missing $dnsbl->getTxt() function in delivered old DNSBL.php
//$serendipity['messagestack']['comments'][] = PLUGIN_EVENT_SPAMBLOCK_ERROR_RBL . ' ('.implode(', ', $dnsbl->getTxt($remoteIP)).')';
$serendipity['messagestack']['comments'][] = PLUGIN_EVENT_SPAMBLOCK_ERROR_RBL . ' (' . $remoteIP . ')';
return false;
}
// Check for IP listed in http:BL
require_once 'httpbl.php';
$honeypot_apikey = $this->get_config('httpBL_key');
if (!empty($honeypot_apikey)) {
$h = new http_bl($honeypot_apikey);
// known spammer
// DEBUG $remoteIP = '206.51.226.106';
// A quick tip for testing: change $remoteIP = '$_SERVER['REMOTE_ADDR']; on line 89 to e.g.
// $remoteIP = '109.200.6.202'; // Comments should get rejected as this ip is on both blacklists right now.
$r = $h->query($remoteIP);
if ($r == 2) {
$eventData = array('allow_comments' => false);
$reason = PLUGIN_EVENT_SPAMBLOCK_REASON_HONEYPOT . $h->type_txt . ' [' . $h->type_num . '] with a score of ' . $h->score . ', last seen since ' . $h->days . ' days';
$serendipity['messagestack']['comments'][] = $reason;
}
return false;
}
}
return true;
break;
default:
return false;
break;
}
} else {
return false;
}
}
private function performChecks()
{
$request = JRequest::get();
// Calc check
if ($this->params->get('type_calc')) {
if ($this->_session->get('rot13', null, 'easycalccheck') == 1) {
$spamcheckresult = base64_decode(str_rot13($this->_session->get('spamcheckresult', null, 'easycalccheck')));
} else {
$spamcheckresult = base64_decode($this->_session->get('spamcheckresult', null, 'easycalccheck'));
}
$spamcheck = JRequest::getInt($this->_session->get('spamcheck', null, 'easycalccheck'), '', 'post');
$this->_session->clear('rot13', 'easycalccheck');
$this->_session->clear('spamcheck', 'easycalccheck');
$this->_session->clear('spamcheckresult', 'easycalccheck');
if (!is_numeric($spamcheckresult) || $spamcheckresult != $spamcheck) {
return false;
// Failed
}
}
// Hidden field
if ($this->params->get('type_hidden')) {
$hidden_field = $this->_session->get('hidden_field', null, 'easycalccheck');
$this->_session->clear('hidden_field', 'easycalccheck');
if (JRequest::getVar($hidden_field, '', 'post')) {
return false;
// Hidden field was filled out - failed
}
}
// Time lock
if ($this->params->get('type_time')) {
$time = $this->_session->get('time', null, 'easycalccheck');
$this->_session->clear('time', 'easycalccheck');
if (time() - $this->params->get('type_time_sec') <= $time) {
return false;
// Submitted too fast - failed
}
}
// Own Question
// Conversion to lower case
if ($this->params->get('question')) {
$answer = strtolower(JRequest::getString($this->_session->get('question', null, 'easycalccheck'), '', 'post'));
$this->_session->clear('question', 'easycalccheck');
if ($answer != strtolower($this->params->get('question_a'))) {
return false;
// Question wasn't answered - failed
}
}
// StopForumSpam - Check the IP Address
// Further informations: http://www.stopforumspam.com
if ($this->params->get('stopforumspam')) {
$url = 'http://www.stopforumspam.com/api?ip=' . $this->_session->get('ip', null, 'easycalccheck');
// Function test - Comment out to test - Important: Enter a active Spam-IP
// $ip = '88.180.52.46';
// $url = 'http://www.stopforumspam.com/api?ip='.$ip;
$response = false;
$is_spam = false;
if (function_exists('curl_init')) {
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_POST, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response = curl_exec($ch);
curl_close($ch);
}
if ($response) {
preg_match('#<appears>(.*)</appears>#', $response, $out);
$is_spam = $out[1];
} else {
$response = @fopen($url, 'r');
if ($response) {
while (!feof($response)) {
$line = fgets($response, 1024);
if (preg_match('#<appears>(.*)</appears>#', $line, $out)) {
$is_spam = $out[1];
break;
}
}
fclose($response);
}
}
if ($is_spam == 'yes' and $response == true) {
return false;
// Spam-IP - failed
}
}
// Honeypot Project
// Further informations: http://www.projecthoneypot.org/home.php
// BL ACCESS KEY - http://www.projecthoneypot.org/httpbl_configure.php
if ($this->params->get('honeypot')) {
require_once dirname(__FILE__) . DS . 'easycalccheckplus' . DS . 'honeypot.php';
$http_blKey = $this->params->get('honeypot_key');
if ($http_blKey) {
$http_bl = new http_bl($http_blKey);
$result = $http_bl->query($this->_session->get('ip', null, 'easycalccheck'));
// Function test - Comment out to test - Important: Enter a active Spam-IP
// $ip = '117.21.224.251';
// $result = $http_bl->query($ip);
if ($result == 2) {
return false;
}
}
}
// Akismet
// Further informations: http://akismet.com/
if ($this->params->get('akismet')) {
require_once dirname(__FILE__) . DS . 'easycalccheckplus' . DS . 'akismet.php';
$akismet_key = $this->params->get('akismet_key');
if ($akismet_key) {
$akismet_url = JURI::getInstance()->toString();
$name = '';
$email = '';
$url = '';
$comment = '';
if ($request['option'] == 'com_contact') {
$name = $request['jform']['contact_name'];
$email = $request['jform']['contact_email'];
$comment = $request['jform']['contact_message'];
} elseif ($request['option'] == 'com_users') {
$name = $request['jform']['name'];
$email = $request['jform']['email1'];
if (isset($request['jform']['email'])) {
$email = $request['jform']['email'];
}
} elseif ($request['option'] == 'com_comprofiler') {
$name = $request['name'];
$email = $request['email'];
if (isset($request['checkusername'])) {
$name = $request['checkusername'];
}
if (isset($request['checkemail'])) {
$email = $request['checkemail'];
}
} elseif ($request['option'] == 'com_easybookreloaded') {
$name = $request['gbname'];
$email = $request['gbmail'];
$comment = $request['gbtext'];
if (isset($request['gbpage'])) {
$url = $request['gbpage'];
}
} elseif ($request['option'] == 'com_phocaguestbook') {
$name = $request['pgusername'];
$email = $request['email'];
$comment = $request['pgbcontent'];
} elseif ($request['option'] == 'com_dfcontact') {
$name = $request['name'];
$email = $request['email'];
$comment = $request['message'];
} elseif ($request['option'] == 'com_flexicontact') {
$name = $request['from_name'];
$email = $request['from_email'];
$comment = $request['area_data'];
} elseif ($request['option'] == 'com_alfcontact') {
$name = $request['name'];
$email = $request['email'];
$comment = $request['message'];
} elseif ($request['option'] == 'com_community') {
$name = $request['usernamepass'];
$email = $request['emailpass'];
} elseif ($request['option'] == 'com_virtuemart') {
$name = $request['name'];
$email = $request['email'];
$comment = $request['comment'];
} elseif ($request['option'] == 'com_jshopping') {
$name = $request['f_name'];
$email = $request['email'];
}
$akismet = new Akismet($akismet_url, $akismet_key);
$akismet->setCommentAuthor($name);
$akismet->setCommentAuthorEmail($email);
$akismet->setCommentAuthorURL($url);
$akismet->setCommentContent($comment);
if ($akismet->isCommentSpam()) {
return false;
}
}
}
// ReCaptcha
// Further informations: http://www.google.com/recaptcha
if ($this->params->get('recaptcha') and $this->params->get('recaptcha_publickey') and $this->params->get('recaptcha_privatekey')) {
require_once dirname(__FILE__) . DS . 'easycalccheckplus' . DS . 'recaptchalib.php';
$privatekey = $this->params->get('recaptcha_privatekey');
$resp = recaptcha_check_answer($privatekey, $this->_session->get('ip', null, 'easycalccheck'), $request['recaptcha_challenge_field'], $request['recaptcha_response_field']);
if (!$resp->is_valid) {
return false;
}
}
// Botscout - Check the IP Address
// Further informations: http://botscout.com/
if ($this->params->get('botscout') and $this->params->get('botscout_key')) {
$url = 'http://botscout.com/test/?ip=' . $this->_session->get('ip', null, 'easycalccheck') . '&key=' . $this->params->get('botscout_key');
// Function test - Comment out to test - Important: Enter a active Spam-IP
// $ip = '87.103.128.199';
// $url = 'http://botscout.com/test/?ip='.$ip.'&key='.$this->params->get('botscout_key');
$response = false;
$is_spam = false;
if (function_exists('curl_init')) {
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_POST, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response = curl_exec($ch);
curl_close($ch);
}
if ($response) {
$is_spam = substr($response, 0, 1);
} else {
$response = @fopen($url, 'r');
if ($response) {
while (!feof($response)) {
$line = fgets($response, 1024);
$is_spam = substr($line, 0, 1);
}
fclose($response);
}
}
if ($is_spam == 'Y' and $response == true) {
// Spam-IP - failed
return false;
}
}
// Mollom
// Further informations: http://mollom.com/
if ($this->params->get('mollom') and $this->params->get('mollom_publickey') and $this->params->get('mollom_privatekey')) {
require_once dirname(__FILE__) . DS . 'easycalccheckplus' . DS . 'mollom.php';
Mollom::setPublicKey($this->params->get('mollom_publickey'));
Mollom::setPrivateKey($this->params->get('mollom_privatekey'));
$servers = Mollom::getServerList();
$name = '';
$email = '';
$url = '';
$comment = '';
if ($request['option'] == 'com_contact') {
$name = $request['jform']['contact_name'];
$email = $request['jform']['contact_email'];
$comment = $request['jform']['contact_message'];
} elseif ($request['option'] == 'com_users') {
$name = $request['jform']['name'];
$email = $request['jform']['email1'];
if (isset($request['jform']['email'])) {
$email = $request['jform']['email'];
}
} elseif ($request['option'] == 'com_comprofiler') {
$name = $request['name'];
$email = $request['email'];
if (isset($request['checkusername'])) {
$name = $request['checkusername'];
}
if (isset($request['checkemail'])) {
$email = $request['checkemail'];
}
} elseif ($request['option'] == 'com_easybookreloaded') {
$name = $request['gbname'];
$email = $request['gbmail'];
$comment = $request['gbtext'];
if (isset($request['gbpage'])) {
$url = $request['gbpage'];
}
} elseif ($request['option'] == 'com_phocaguestbook') {
$name = $request['pgusername'];
$email = $request['email'];
$comment = $request['pgbcontent'];
} elseif ($request['option'] == 'com_dfcontact') {
$name = $request['name'];
$email = $request['email'];
$comment = $request['message'];
} elseif ($request['option'] == 'com_flexicontact') {
$name = $request['from_name'];
$email = $request['from_email'];
$comment = $request['area_data'];
} elseif ($request['option'] == 'com_alfcontact') {
$name = $request['name'];
$email = $request['email'];
$comment = $request['message'];
} elseif ($request['option'] == 'com_community') {
$name = $request['usernamepass'];
$email = $request['emailpass'];
} elseif ($request['option'] == 'com_virtuemart') {
$name = $request['name'];
$email = $request['email'];
$comment = $request['comment'];
} elseif ($request['option'] == 'com_jshopping') {
$name = $request['f_name'];
$email = $request['email'];
}
$feedback = Mollom::checkContent(null, null, $comment, $name, $url, $email);
if ($feedback['spam'] == 'spam') {
return false;
}
}
$this->_session->clear('ip', 'easycalccheck');
$this->_session->clear('saved_data', 'easycalccheck');
return true;
}
