80 lines
2.6 KiB
PHP
80 lines
2.6 KiB
PHP
<?php
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namespace Pterodactyl\Rules;
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use Illuminate\Support\Arr;
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use Illuminate\Contracts\Validation\Rule;
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use Illuminate\Contracts\Validation\DataAwareRule;
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class Fqdn implements Rule, DataAwareRule
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{
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protected array $data = [];
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protected string $message = '';
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protected ?string $schemeField = null;
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/**
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* @param array $data
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*/
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public function setData($data): self
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{
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$this->data = $data;
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return $this;
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}
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/**
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* Validates that the value provided resolves to an IP address. If a scheme is
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* specified when this rule is created additional checks will be applied.
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*
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* @param string $attribute
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* @param mixed $value
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*/
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public function passes($attribute, $value): bool
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{
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if (filter_var($value, FILTER_VALIDATE_IP)) {
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// Check if the scheme is set to HTTPS.
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//
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// Unless someone owns their IP blocks and decides to pay who knows how much for a
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// custom SSL cert, IPs will not be able to use HTTPS. This should prevent most
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// home users from making this mistake and wondering why their node is not working.
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if ($this->schemeField && Arr::get($this->data, $this->schemeField) === 'https') {
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$this->message = 'The :attribute must not be an IP address when HTTPS is enabled.';
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return false;
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}
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return true;
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}
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// Lookup A and AAAA DNS records for the FQDN. Note, this function will also resolve CNAMEs
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// for us automatically, there is no need to manually resolve them here.
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//
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// The error suppression is intentional, see https://bugs.php.net/bug.php?id=73149
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$records = @dns_get_record($value, DNS_A + DNS_AAAA);
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// If no records were returned fall back to trying to resolve the value using the hosts DNS
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// resolution. This will not work for IPv6 which is why we prefer to use `dns_get_record`
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// first.
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if (!empty($records) || filter_var(gethostbyname($value), FILTER_VALIDATE_IP)) {
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return true;
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}
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$this->message = 'The :attribute could not be resolved to a valid IP address.';
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return false;
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}
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public function message(): string
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{
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return $this->message;
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}
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/**
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* Returns a new instance of the rule with a defined scheme set.
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*/
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public static function make(string $schemeField = null): self
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{
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return tap(new static(), function ($fqdn) use ($schemeField) {
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$fqdn->schemeField = $schemeField;
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});
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}
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}
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