function validate_domains($domains)
{
$errors = array();
$domains = explode("\n", $domains);
$domains = array_map('strtolower', $domains);
$domains = array_filter($domains);
$domains = array_unique($domains);
foreach ($domains as $key => $value) {
$value = trim(mb_strtolower($value));
// check if reasonably valid domain
if (!preg_match("/^([a-z\\d](-*[a-z\\d])*)(\\.([a-z\\d](-*[a-z\\d])*))*\$/i", $value) && !preg_match("/^.{1,253}\$/", $value) && !preg_match("/^[^\\.]{1,63}(\\.[^\\.]{1,63})*\$/", $value)) {
$errors[] = "Invalid domain name: " . htmlspecialchars($value) . ".";
}
// check valid dns record
$ips = dns_get_record($value, DNS_A + DNS_AAAA);
sort($ips);
if (count($ips) >= 1) {
if (!empty($ips[0]['type'])) {
if ($ips[0]['type'] === "AAAA") {
$ip = $ips[0]['ipv6'];
if (!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
$errors[] = "Invalid domain AAAA record for: " . htmlspecialchars($value) . ".";
}
} elseif ($ips[0]['type'] === "A") {
$ip = $ips[0]['ip'];
if (!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
$errors[] = "Invalid domain A record for: " . htmlspecialchars($value) . ".";
}
}
} else {
$errors[] = "No DNS A/AAAA records for: " . htmlspecialchars($value) . ".";
}
} else {
$errors[] = "Error resolving domain: " . htmlspecialchars($value) . ".";
}
}
if (is_array($errors) && count($errors) == 0) {
foreach ($domains as $key => $value) {
$raw_chain = get_raw_chain(trim($value));
if (!$raw_chain) {
$errors[] = "Domain has invalid or no certificate: " . htmlspecialchars($value) . ".";
} else {
foreach ($raw_chain['chain'] as $raw_key => $raw_value) {
$cert_expiry = cert_expiry($raw_value);
$cert_subject = cert_subject($raw_value);
if ($cert_expiry['cert_expired']) {
$errors[] = "Domain has expired certificate in chain: " . htmlspecialchars($value) . ". Cert Subject: " . htmlspecialchars($cert_subject) . ".";
}
}
}
}
}
if (is_array($errors) && count($errors) >= 1) {
$result = array();
foreach ($errors as $key => $value) {
$result['errors'][] = $value;
}
return $result;
} else {
$result = array();
foreach ($domains as $key => $value) {
$result['domains'][] = $value;
}
return $result;
}
}
}
if ($json_a[$key]['errors'] >= 7) {
echo "\tToo many errors. Adding domain to removal queue.\n";
$removal_queue[] = $key;
}
if (strpos($errortexts, 'Domain has expired certificate in chain') === false) {
continue;
}
}
$raw_chain = get_raw_chain($domain);
$counter = 0;
foreach ($raw_chain['chain'] as $chain_key => $chain_value) {
$counter += 1;
$cert_exp_date = cert_expiry_date($chain_value);
$cert_cn = cert_cn($chain_value);
$cert_expiry = cert_expiry($chain_value);
echo "\tCert Chain #" . $counter . ". Expiry Date: " . date("Y-m-d H:i:s T", $cert_exp_date) . ". Common Name: " . $cert_cn . "\n";
cert_expiry_emails($domain, $email, $cert_expiry, $chain_value);
}
$file = file_get_contents($check_file);
if ($file === FALSE) {
echo "\tCan't open database.\n";
continue;
}
$json_a = json_decode($file, true);
if ($json_a === null && json_last_error() !== JSON_ERROR_NONE) {
echo "\tCan't read database\n";
continue;
}
if ($json_a[$key]['errors'] != 0) {
if (strpos($errortexts, 'Domain has expired certificate in chain') === false) {