FileName.php
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FileName.php
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	<?php

	namespace App\Rules;

	use Illuminate\Contracts\Validation\Rule;

	class FileName implements Rule
	{
	private $message;

	/**
	* Determine if the validation rule passes.
	*
	* @param string $attribute Attribute name
	* @param mixed $name The value to validate
	*
	* @return bool
	*/
	public function passes($attribute, $name): bool
	{
	if (empty($name) \|\| !is_string($name)) {
	$this->message = \trans('validation.file-name-invalid');
	return false;
	}

	// Check the max length, according to the database column length
	if (strlen($name) > 512) {
	$this->message = \trans('validation.max.string', ['max' => 512]);
	return false;
	}

	// Non-allowed characters
	if (preg_match('\|[\x00-\x1F\/*"\x7F]\|', $name)) {
	$this->message = \trans('validation.file-name-invalid');
	return false;
	}

	// Leading/trailing spaces, or all spaces
	if (preg_match('\|^\s+$\|', $name) \|\| preg_match('\|^\s+\|', $name) \|\| preg_match('\|\s+$\|', $name)) {
	$this->message = \trans('validation.file-name-invalid');
	return false;
	}

	// FIXME: Should we require a dot?

	return true;
	}

	/**
	* Get the validation error message.
	*
	* @return string
	*/
	public function message(): ?string
	{
	return $this->message;
	}
	}