wp-includes/Requests/src/Ssl.php:20SSL utilities for Requests
final class Ssl { /** * Verify the certificate against common name and subject alternative names * * Unfortunately, PHP doesn't check the certificate against the alternative * names, leading things like 'https://www.github.com/' to be invalid. * * @link https://tools.ietf.org/html/rfc2818#section-3.1 RFC2818, Section 3.1 * * @param string|Stringable $host Host name to verify against * @param array $cert Certificate data from openssl_x509_parse() * @return bool * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed $host argument is not a string or a stringable object. * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed $cert argument is not an array or array accessible. */ public static function verify_certificate($host, $cert) { if (InputValidator::is_string_or_stringable($host) === false) { throw InvalidArgument::create(1, '$host', 'string|Stringable', gettype($host)); } if (InputValidator::has_array_access($cert) === false) { throw InvalidArgument::create(2, '$cert', 'array|ArrayAccess', gettype($cert)); } $has_dns_alt = false; // Check the subjectAltName if (!empty($cert['extensions']['subjectAltName'])) { $altnames = explode(',', $cert['extensions']['subjectAltName']); foreach ($altnames as $altname) { $altname = trim($altname); if (strpos($altname, 'DNS:') !== 0) { continue; } $has_dns_alt = true; // Strip the 'DNS:' prefix and trim whitespace $altname = trim(substr($altname, 4)); // Check for a match if (self::match_domain($host, $altname) === true) { return true; } } if ($has_dns_alt === true) { return false; } } // Fall back to checking the common name if we didn't get any dNSName // alt names, as per RFC2818 if (!empty($cert['subject']['CN'])) { // Check for a match return (self::match_domain($host, $cert['subject']['CN']) === true); } return false; } /** * Verify that a reference name is valid * * Verifies a dNSName for HTTPS usage, (almost) as per Firefox's rules: * - Wildcards can only occur in a name with more than 3 components * - Wildcards can only occur as the last character in the first * component * - Wildcards may be preceded by additional characters * * We modify these rules to be a bit stricter and only allow the wildcard * character to be the full first component; that is, with the exclusion of * the third rule. * * @param string|Stringable $reference Reference dNSName * @return boolean Is the name valid? * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed argument is not a string or a stringable object. */ public static function verify_reference_name($reference) { if (InputValidator::is_string_or_stringable($reference) === false) {Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/Requests/src/Ssl.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.