misc_pterodactyl-panel/app/Rules/Username.php

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<?php
namespace Pterodactyl\Rules;
use Illuminate\Contracts\Validation\Rule;
class Username implements Rule
{
/**
* Regex to use when validating usernames.
*/
public const VALIDATION_REGEX = '/^[a-z0-9]([\w\.-]+)[a-z0-9]$/';
/**
* Validate that a username contains only the allowed characters and starts/ends
* with alphanumeric characters.
*
* Allowed characters: a-z0-9_-.
*
* @param string $attribute
* @param mixed $value
*/
public function passes($attribute, $value): bool
{
return preg_match(self::VALIDATION_REGEX, mb_strtolower($value));
}
/**
* Return a validation message for use when this rule fails.
*/
public function message(): string
{
return 'The :attribute must start and end with alpha-numeric characters and
contain only letters, numbers, dashes, underscores, and periods.';
}
/**
* Convert the rule to a validation string. This is necessary to avoid
* issues with Eloquence which tries to use this rule as a string.
*/
public function __toString(): string
{
return 'p_username';
}
}