function spambot_account_is_spammer

Same name and namespace in other branches

1. 7.x-1.x spambot.module \spambot_account_is_spammer() 1 comment

Checks an account to see if it's a spammer.

This one uses configurable automated criteria checking of email and username only.

Parameters

object $account: User account.

Return value

int Positive if spammer, 0 if not spammer, negative if error.

1 call to spambot_account_is_spammer()

spambot_cron in ./spambot.module

Implements hook_cron().

File

./spambot.module, line 146

Code

function spambot_account_is_spammer($account, $config) {
    // Number of times email has been reported as spam in the forum.
    $email_threshold = $config->get('spambot_criteria_email');
    $username_threshold = $config->get('spambot_criteria_username');
    $ip_threshold = $config->get('spambot_criteria_ip');
    // Build request parameters according to the criteria to use.
    $request = [];
    if (!empty($account->getEmail()) && $email_threshold > 0 && !spambot_check_whitelist('email', $config, $account->getEmail())) {
        $request['email'] = $account->getEmail();
    }
    if (!empty($account->getDisplayName()) && $username_threshold > 0 && !spambot_check_whitelist('username', $config, $account->getDisplayName())) {
        $request['username'] = $account->getDisplayName();
    }
    // Only do a remote API request if there is anything to check.
    if ($request) {
        $data = [];
        if (spambot_sfs_request($request, $data)) {
            if ($email_threshold > 0 && !empty($data['email']['appears']) && $data['email']['frequency'] >= $email_threshold || $username_threshold > 0 && !empty($data['username']['appears']) && $data['username']['frequency'] >= $username_threshold) {
                return 1;
            }
        }
        else {
            // Return error.
            return -1;
        }
    }
    // Now check IP's
    // If any IP matches the threshold, then flag as a spammer.
    if ($ip_threshold > 0) {
        $ips = spambot_account_ip_addresses($account);
        foreach ($ips as $ip) {
            // Skip the loopback interface.
            if ($ip == '127.0.0.1') {
                continue;
            }
            elseif (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 | FILTER_FLAG_IPV6) === FALSE) {
                \Drupal::logger('spambot')->notice('Invalid IP address: %ip (uid=%uid, name=%name, email=%email). Spambot will not rely on it', [
                    '%ip' => $ip,
                    '%name' => $account->getDisplayName(),
                    '%email' => $account->getEmail(),
                    '%uid' => $account->id(),
                ]);
                continue;
            }
            $request = [
                'ip' => $ip,
            ];
            $data = [];
            if (spambot_sfs_request($request, $data)) {
                if (!empty($data['ip']['appears']) && $data['ip']['frequency'] >= $ip_threshold) {
                    return 1;
                }
            }
            else {
                // Abort on error.
                return -1;
            }
        }
    }
    // Return no match.
    return 0;
}