Rely on the test connection to the MySQL instance rather than trying to validate the host manually; closes #2311; closes #2282

app/Models/DatabaseHost.php

@@ -2,8 +2,6 @@
 
 namespace Pterodactyl\Models;
 
-use Pterodactyl\Rules\ResolvesToIPAddress;
-
 class DatabaseHost extends Model
 {
     /**
@@ -60,18 +58,6 @@ class DatabaseHost extends Model
         'node_id' => 'sometimes|nullable|integer|exists:nodes,id',
     ];
 
-    /**
-     * @return array
-     */
-    public static function getRules()
-    {
-        $rules = parent::getRules();
-
-        $rules['host'] = array_merge($rules['host'], [ new ResolvesToIPAddress() ]);
-
-        return $rules;
-    }
-
     /**
      * Gets the node associated with a database host.
      *

app/Rules/ResolvesToIPAddress.php

@@ -1,49 +0,0 @@
-<?php
-
-namespace Pterodactyl\Rules;
-
-use Illuminate\Contracts\Validation\Rule;
-
-class ResolvesToIPAddress implements Rule
-{
-    /**
-     * Validate that a given string can correctly resolve to a valid IPv4 address.
-     *
-     * @param string $attribute
-     * @param mixed $value
-     * @return bool
-     */
-    public function passes($attribute, $value): bool
-    {
-        // inet_pton returns false if the value passed through is not a valid IP address, so we'll just
-        // use that a nice ugly PHP hack to determine if we should pass this off to the gethostbyname
-        // call below.
-        $isIP = inet_pton($attribute) !== false;
-
-        // If the value received is not an IP address try to look it up using the gethostbyname() call.
-        // If that returns the same value that we passed in then it means it did not resolve to anything
-        // and we should fail this validation call.
-        return $isIP || gethostbyname($value) !== $value;
-    }
-
-    /**
-     * Return a validation message for use when this rule fails.
-     *
-     * @return string
-     */
-    public function message(): string
-    {
-        return 'The :attribute must be a valid IPv4 address or hostname that resolves to a valid IPv4 address.';
-    }
-
-    /**
-     * Convert the rule to a validation string. This is necessary to avoid
-     * issues with Eloquence which tries to use this rule as a string.
-     *
-     * @return string
-     */
-    public function __toString()
-    {
-        return 'p_resolves_to_ip_address';
-    }
-}