Symfony Validation Bundle

Additional validators set for Symfony.

Compatibility matrix

Bundle version	Maintained	Symfony versions	Min. PHP version
3.x	Yes	7.x	8.2.0
2.x	No	6.x	8.0.0
1.8	No	5.x, 4.x	7.1.0

Installation

From the command line run

$ composer require secit-pl/validation-bundle

Validators

NotBlankIf

This validator checks if value is not blank like a standard NotBlank Symfony validator, but also allows define the condition when the NotBlank validation should be performed using Symfony Expression Language.

From Symfony 6.2 you can also use When validator.

https://symfony.com/blog/new-in-symfony-6-2-conditional-constraints

https://symfony.com/doc/6.2/reference/constraints/When.html

Example usage

use SecIT\ValidationBundle\Validator\Constraints as SecITAssert;

// ...

#[SecITAssert\NotBlankIf("this.isSuperUser")]
private ?string $email = null;

public function isSuperUser(): bool
{
    return true;
}

Parameters

Parameter	Type	Default	Description
expression	string	empty array	The expression that will be evaluated. If the expression evaluates to a false value (using ==, not ===), not blank validation won't be performed)
values	array	empty array	The values of the custom variables used in the expression. Values can be of any type (numeric, boolean, strings, null, etc.)

FileExtension

This validator checks if file has valid file extension.

From Symfony 6.2 you can also use the "extensions" option in File validator.

https://symfony.com/blog/new-in-symfony-6-2-improved-file-validator

https://symfony.com/doc/6.2/reference/constraints/File.html#extensions

Example usage

use SecIT\ValidationBundle\Validator\Constraints as SecITAssert;

// ...

#[SecITAssert\FileExtension(["jpg", "jpeg", "png"])]
private $file;

use SecIT\ValidationBundle\Validator\Constraints as SecITAssert;

// ...

#[SecITAssert\FileExtension(disallowedExtensions: ["jpg", "jpeg", "png"])]
private $file;

Parameters

Parameter	Type	Default	Description
validExtensions	array	empty array	Allowed/valid file extensions list
disallowedExtensions	array	empty array	Disallowed/invalid file extensions list
matchCase	bool	false	Enable/disable verifying the file extension case

Caution! It's highly recommended to use this validator together with native Symfony File/Image validator.

use SecIT\ValidationBundle\Validator\Constraints as SecITAssert;
use Symfony\Component\Validator\Constraints as Assert;

// ...

#[Assert\Image(maxSize: '2M', mimeTypes: ["image/jpg", "image/jpeg", "image/png"])]
#[SecITAssert\FileExtension(validExtensions: ["jpg", "jpeg", "png"])]
private $file;

CollectionOfUniqueElements

Checks if collection contains only unique elements.

From Symfony 6.0 you can also use the Unique validator.

https://symfony.com/doc/current/reference/constraints/Unique.html

Parameters

Parameter	Type	Default	Description
matchCase	bool	false	Enable/disable verifying the characters case
customNormalizationFunction	null or callable	null	Custom normalization function

use SecIT\ValidationBundle\Validator\Constraints as SecITAssert;

// ...

#[SecITAssert\CollectionOfUniqueElements()]
private $collection;

This validator can also be used to validate unique files upload.

<?php

declare(strict_types=1);

namespace App\Form;

use SecIT\ValidationBundle\Validator\Constraints\CollectionOfUniqueElements;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\CollectionType;
use Symfony\Component\Form\Extension\Core\Type\FileType;
use Symfony\Component\Form\FormBuilderInterface;

class ExampleType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('files', CollectionType::class, [
            'entry_type' => FileType::class,
            'allow_add' => true,
            'constraints' => [
                new CollectionOfUniqueElements(),
            ],
        ]);
    }
}

AntiXss

Checks if text contains XSS attack using voku\anti-xss library.

use SecIT\ValidationBundle\Validator\Constraints as SecITAssert;

// ...

#[SecITAssert\AntiXss()]
private $text;

NaiveNoHtml

Perform very naive check if text contains HTML.

use SecIT\ValidationBundle\Validator\Constraints as SecITAssert;

// ...

#[SecITAssert\NaiveNoHtml()]
private $text;

Parameters

Parameter	Type	Default	Description
strongValidation	bool	true (recommended)	Enable/disable strong validation. Disable if you'd like to allow strings with unclosed tags such as "I <3 You".

BurnerEmail

Checks if email address is a throw away email addresses (burner email). This check is perform against the list provided by wesbos/burner-email-providers. You need to install this package manually (composer require wesbos/burner-email-providers) if you'd like to use this validator.

use SecIT\ValidationBundle\Validator\Constraints as SecITAssert;

// ...

#[SecITAssert\BurnerEmail()]
private $email;

ClamAvScanFile

Scans file for infection using ClamAV. The check is made using the bundle sineflow/clamav. You need to install and configure this package manually if you'd like to use this validator.

You can find test files here https://github.com/fire1ce/eicar-standard-antivirus-test-files/tree/master.

The validator will not work if the PrivateTmp is set to true because the temp file path in php will differ from the real system temp file path so the clamscan will not find the file to scan!

use SecIT\ValidationBundle\Validator\Constraints as SecITAssert;

// ...

#[SecITAssert\ClamAvScanFile()]
private \Symfony\Component\HttpFoundation\File\File $file;

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