function DrupalKernel::validateHostnameLength

Validates a hostname length.

Parameters

string $host: A hostname.

Return value

bool TRUE if the length is appropriate, or FALSE otherwise.

1 call to DrupalKernel::validateHostnameLength()

DrupalKernel::validateHostname in core/lib/Drupal/Core/DrupalKernel.php

Validates the hostname supplied from the HTTP request.

File

core/lib/Drupal/Core/DrupalKernel.php, line 1560

Class

DrupalKernel

The DrupalKernel class is the core of Drupal itself.

Namespace

Drupal\Core

Code

protected static function validateHostnameLength($host) {
    // Limit the length of the host name to 1000 bytes to prevent DoS attacks
    // with long host names.
    return strlen($host) <= 1000 && substr_count($host, '.') <= 100 && substr_count($host, ':') <= 100;
}