/**
* Block request by country
*
* @param integer country ID
* @param boolean set true to block the requet here, or false to handle outside the function
* @return boolean true if blocked, false otherwise
*/
function antispam_block_by_country($country_ID, $assert = true)
{
global $DB;
$CountryCache =& get_CountryCache();
$Country = $CountryCache->get_by_ID($country_ID, false);
if ($Country && $Country->get('status') == 'blocked') {
// The country exists in the database and has blocked status
if ($assert) {
// block the request
$debug_message = sprintf('A request from \'%s\' was blocked because of this country is blocked.', $Country->get_name());
exit_blocked_request('Country', $debug_message);
// WILL exit();
}
// Update the number of requests from blocked countries
$DB->query('UPDATE T_regional__country
SET ctry_block_count = ctry_block_count + 1
WHERE ctry_ID = ' . $Country->ID);
return true;
}
return false;
}
/**
* Event handler: Gets invoked when an action request was called which should be blocked in specific cases
*
* Blocakble actions: comment post, user login/registration, email send/validation, account activation
*/
function BeforeBlockableAction()
{
// Get request Ip addresses
$request_ip_list = get_ip_list();
foreach ($request_ip_list as $IP_address) {
$Country = $this->get_country_by_IP($IP_address);
if (!$Country) {
// Country not found
continue;
}
if (antispam_block_by_country($Country->ID, false)) {
// Block the action if the country is blocked
$debug_message = sprintf('A request with [ %s ] ip addresses was blocked because of \'%s\' is blocked.', implode(', ', $request_ip_list), $Country->get_name());
exit_blocked_request('Country', $debug_message, 'plugin', $this->ID);
// WILL exit();
}
}
}
