Skip to content

Instantly share code, notes, and snippets.

@nasrulhazim
Last active October 1, 2023 15:47
Show Gist options
  • Save nasrulhazim/f3ca4c231216a491b423e06e069473ae to your computer and use it in GitHub Desktop.
Save nasrulhazim/f3ca4c231216a491b423e06e069473ae to your computer and use it in GitHub Desktop.
Laravel Base64 and Base64 Image Validator
<?php
namespace App\Providers;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\ServiceProvider;
class AppServiceProvider extends ServiceProvider
{
/**
* Bootstrap any application services.
*
* @return void
*/
public function boot()
{
Validator::extend('base64', function ($attribute, $value, $parameters, $validator) {
if (preg_match('%^[a-zA-Z0-9/+]*={0,2}$%', $value)) {
return true;
} else {
return false;
}
});
Validator::extend('base64image', function ($attribute, $value, $parameters, $validator) {
$explode = explode(',', $value);
$allow = ['png', 'jpg', 'svg'];
$format = str_replace(
[
'data:image/',
';',
'base64',
],
[
'', '', '',
],
$explode[0]
);
// check file format
if (!in_array($format, $allow)) {
return false;
}
// check base64 format
if (!preg_match('%^[a-zA-Z0-9/+]*={0,2}$%', $explode[1])) {
return false;
}
return true;
});
}
/**
* Register any application services.
*
* @return void
*/
public function register()
{
if ($this->app->environment() == 'local') {
$this->app->register(\MaddHatter\ViewGenerator\ServiceProvider::class);
}
}
}
@dexdinesh
Copy link

@khanzadimahdi
Copy link

this validation is not safe! you extract file's mime from client's data!!

@devleatherks
Copy link

I found this https://packagist.org/packages/crazybooot/base64-validation

Bad base64image check, skips what shouldn't be skipped

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment