/**
* checks email/ip for spammer status
*
* @param type $register_email
* @param type $register_ip
* @param type $checkemail
* @return boolean
*/
function check_spammer($register_email, $register_ip, $checkemail = true)
{
$spammer = false;
if ($checkemail) {
$email_whitelisted = is_email_whitelisted($register_email);
} else {
$email_whitelisted = true;
}
$ip_whitelisted = is_ip_whitelisted($register_ip);
if ($email_whitelisted && $ip_whitelisted) {
// short circuit
return true;
}
//Mail domain blacklist
if (elgg_get_plugin_setting('use_mail_domain_blacklist', PLUGIN_ID) == "yes" && !$email_whitelisted) {
$blacklistedMailDomains = preg_split('/\\s+/', strip_spaces(strip_tags(elgg_get_plugin_setting('blacklisted_mail_domains', PLUGIN_ID))), -1, PREG_SPLIT_NO_EMPTY);
$mailDomain = explode("@", $register_email);
foreach ($blacklistedMailDomains as $domain) {
if ($mailDomain[1] == $domain) {
register_error(elgg_echo('spam_login_filter:access_denied_domain_blacklist'));
notify_admin($register_email, $register_ip, "Internal domain blacklist");
$spammer = true;
break;
}
}
}
if (!$spammer) {
//Mail blacklist
if (elgg_get_plugin_setting('use_mail_blacklist', PLUGIN_ID) == "yes" && !$email_whitelisted) {
$blacklistedMails = preg_split('/\\s+/', strip_spaces(strip_tags(elgg_get_plugin_setting('blacklisted_mails', PLUGIN_ID))), -1, PREG_SPLIT_NO_EMPTY);
foreach ($blacklistedMails as $blacklistedMail) {
if ($blacklistedMail == $register_email) {
register_error(elgg_echo('spam_login_filter:access_denied_mail_blacklist'));
notify_admin($register_email, $register_ip, "Internal e-mail blacklist");
$spammer = true;
break;
}
}
}
}
if (!$spammer) {
//StopForumSpam
if (elgg_get_plugin_setting('use_stopforumspam', PLUGIN_ID) == "yes") {
//check the e-mail adress
$url = "http://www.stopforumspam.com/api?email=" . $register_email . "&f=json";
$return = call_url($url);
if ($return != false) {
$data = json_decode($return);
$email_frequency = $data->email->frequency;
if ($email_frequency != '0' && !$email_whitelisted) {
register_error(elgg_echo('spam_login_filter:access_denied_mail_blacklist'));
notify_admin($register_email, $register_ip, "Stopforumspam e-mail blacklist");
$spammer = true;
}
}
if (!$spammer && !$ip_whitelisted) {
//e-mail not found in the database, now check the ip
$url = "http://www.stopforumspam.com/api?ip=" . $register_ip . "&f=json";
$return = call_url($url);
if ($return != false) {
$data = json_decode($return);
$ip_frequency = $data->ip->frequency;
if ($ip_frequency != '0') {
register_error(elgg_echo('spam_login_filter:access_denied_ip_blacklist'));
notify_admin($register_email, $register_ip, "Stopforumspam IP blacklist");
$spammer = true;
}
}
}
}
}
return $spammer ? false : true;
}
/**
* checks email/ip for spammer status
*
* @param type $register_email
* @param type $register_ip
* @param type $checkemail
* @return boolean
*/
function check_spammer($register_email, $register_ip, $checkemail = true)
{
if ($checkemail) {
$email_whitelisted = is_email_whitelisted($register_email);
if ($email_whitelisted) {
return true;
// not a spammer, no need for any further checks
}
}
$ip_whitelisted = is_ip_whitelisted($register_ip);
if ($ip_whitelisted) {
// not a spammer, no need for any further checks
return true;
}
// check ip cache
$blacklisted = elgg_get_annotations(array('guid' => elgg_get_site_entity()->guid, 'annotation_names' => array('spam_login_filter_ip'), 'annotation_values' => array($register_ip)));
if ($blacklisted) {
register_error(elgg_echo('spam_login_filter:access_denied_ip_blacklist'));
notify_admin($register_email, $register_ip, "Internal IP blacklist");
return false;
}
//Mail domain blacklist
if (elgg_get_plugin_setting('use_mail_domain_blacklist', PLUGIN_ID) == "yes") {
$blacklistedMailDomains = preg_split('/\\s+/', strip_spaces(strip_tags(elgg_get_plugin_setting('blacklisted_mail_domains', PLUGIN_ID))), -1, PREG_SPLIT_NO_EMPTY);
$mailDomain = explode("@", $register_email);
foreach ($blacklistedMailDomains as $domain) {
if ($mailDomain[1] == $domain) {
register_error(elgg_echo('spam_login_filter:access_denied_domain_blacklist'));
notify_admin($register_email, $register_ip, "Internal domain blacklist");
return false;
break;
}
}
}
//Mail blacklist
if (elgg_get_plugin_setting('use_mail_blacklist', PLUGIN_ID) == "yes") {
$blacklistedMails = preg_split('/\\s+/', strip_spaces(strip_tags(elgg_get_plugin_setting('blacklisted_mails', PLUGIN_ID))), -1, PREG_SPLIT_NO_EMPTY);
foreach ($blacklistedMails as $blacklistedMail) {
if ($blacklistedMail == $register_email) {
register_error(elgg_echo('spam_login_filter:access_denied_mail_blacklist'));
notify_admin($register_email, $register_ip, "Internal e-mail blacklist");
return false;
break;
}
}
}
//StopForumSpam
if (elgg_get_plugin_setting('use_stopforumspam', PLUGIN_ID) == "yes") {
//check the e-mail adress
$url = "http://www.stopforumspam.com/api?email=" . $register_email . "&f=json";
$return = call_url($url);
if ($return != false) {
$data = json_decode($return);
$email_frequency = $data->email->frequency;
if ($email_frequency != '0') {
register_error(elgg_echo('spam_login_filter:access_denied_mail_blacklist'));
notify_admin($register_email, $register_ip, "Stopforumspam e-mail blacklist");
return false;
}
}
//e-mail not found in the database, now check the ip
$url = "http://www.stopforumspam.com/api?ip=" . $register_ip . "&f=json";
$return = call_url($url);
if ($return != false) {
$data = json_decode($return);
$ip_frequency = $data->ip->frequency;
if ($ip_frequency != '0') {
register_error(elgg_echo('spam_login_filter:access_denied_ip_blacklist'));
notify_admin($register_email, $register_ip, "Stopforumspam IP blacklist");
// cache this ip
elgg_get_site_entity()->annotate('spam_login_filter_ip', $register_ip, ACCESS_PUBLIC);
return false;
}
}
}
// passed all the tests
return true;
}
