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php-flarum/src/User/AvatarValidator.php

109 lines
3.2 KiB
PHP

<?php
/*
* This file is part of Flarum.
*
* For detailed copyright and license information, please view the
* LICENSE file that was distributed with this source code.
*/
namespace Flarum\User;
use Flarum\Foundation\AbstractValidator;
use Flarum\Foundation\ValidationException;
use Psr\Http\Message\UploadedFileInterface;
use Symfony\Component\Mime\MimeTypes;
class AvatarValidator extends AbstractValidator
{
/**
* @var \Illuminate\Validation\Validator
*/
protected $laravelValidator;
/**
* Throw an exception if a model is not valid.
*
* @param array $attributes
*/
public function assertValid(array $attributes)
{
$this->laravelValidator = $this->makeValidator($attributes);
$this->assertFileRequired($attributes['avatar']);
$this->assertFileMimes($attributes['avatar']);
$this->assertFileSize($attributes['avatar']);
}
protected function assertFileRequired(UploadedFileInterface $file)
{
$error = $file->getError();
if ($error !== UPLOAD_ERR_OK) {
if ($error === UPLOAD_ERR_INI_SIZE || $error === UPLOAD_ERR_FORM_SIZE) {
$this->raise('file_too_large');
}
if ($error === UPLOAD_ERR_NO_FILE) {
$this->raise('required');
}
$this->raise('file_upload_failed');
}
}
protected function assertFileMimes(UploadedFileInterface $file)
{
$allowedTypes = $this->getAllowedTypes();
// Block PHP files masquerading as images
$phpExtensions = ['php', 'php3', 'php4', 'php5', 'phtml'];
$fileExtension = pathinfo($file->getClientFilename(), PATHINFO_EXTENSION);
if (in_array(trim(strtolower($fileExtension)), $phpExtensions)) {
$this->raise('mimes', [':values' => implode(', ', $allowedTypes)]);
}
$guessedExtension = MimeTypes::getDefault()->getExtensions($file->getClientMediaType())[0] ?? null;
if (! in_array($guessedExtension, $allowedTypes)) {
$this->raise('mimes', [':values' => implode(', ', $allowedTypes)]);
}
}
protected function assertFileSize(UploadedFileInterface $file)
{
$maxSize = $this->getMaxSize();
if ($file->getSize() / 1024 > $maxSize) {
$this->raise('max.file', [':max' => $maxSize], 'max');
}
}
protected function raise($error, array $parameters = [], $rule = null)
{
// When we switched to intl ICU message format, the translation parameters
// have become required to be in the format `{param}`.
// Therefore we cannot use the translator to replace the string params.
// We use the laravel validator to make the replacements instead.
$message = $this->laravelValidator->makeReplacements(
$this->translator->trans("validation.$error"),
'avatar',
$rule ?? $error,
array_values($parameters)
);
throw new ValidationException(['avatar' => $message]);
}
protected function getMaxSize()
{
return 2048;
}
protected function getAllowedTypes()
{
return ['jpg', 'png', 'bmp', 'gif'];
}
}