Laravel Email Domain Rule

This package allows to define a subset of allowed email domains and validate any user registration form with a custom rule.

Installation

You can install the package via composer:

composer require maize-tech/laravel-email-domain-rule

You can publish and run the migrations with:

php artisan vendor:publish --provider="Maize\EmailDomainRule\EmailDomainRuleServiceProvider" --tag="email-domain-rule-migrations"
php artisan migrate

You can publish the config file with:

php artisan vendor:publish --provider="Maize\EmailDomainRule\EmailDomainRuleServiceProvider" --tag="email-domain-rule-config"

This is the content of the published config file:

return [

    /*
    |--------------------------------------------------------------------------
    | Email Domain model
    |--------------------------------------------------------------------------
    |
    | Here you may specify the fully qualified class name of the email domain model.
    |
    */

    'email_domain_model' => Maize\EmailDomainRule\Models\EmailDomain::class,

    /*
    |--------------------------------------------------------------------------
    | Email Domain wildcard
    |--------------------------------------------------------------------------
    |
    | Here you may specify the character used as wildcard for all email domains.
    |
    */

    'email_domain_wildcard' => '*',

    /*
    |--------------------------------------------------------------------------
    | Validation message
    |--------------------------------------------------------------------------
    |
    | Here you may specify the message thrown if the validation rule fails.
    |
    */

    'validation_message' => 'The selected :attribute does not have a valid domain.',
];

Usage

Basic

To use the package, run the migration and fill in the table with a list of accepted email domains for your application.

You can then just add the custom validation rule to validate, for example, a user registration form.

use Maize\EmailDomainRule\EmailDomainRule;
use Illuminate\Support\Facades\Validator;

$email = 'my-email@example.com';

Validator::make([
    'email' => $email,
], [
    'email' => [
        'string',
        'email',
        new EmailDomainRule,
    ],
])->validated(); 

That's all! Laravel will handle the rest by validating the input and throwing an error message if validation fails.

Wildcard domains

If needed, you can optionally add wildcard domains to the email_domains database table: the custom rule will handle the rest.

The default wildcard character is an asterisk (*), but you can customize it within the email_domain_wildcard setting.

use Maize\EmailDomainRule\EmailDomainRule;
use Maize\EmailDomainRule\Models\EmailDomain;
use Illuminate\Support\Facades\Validator;

EmailDomain::create(['domain' => '*.example.com']);

Validator::make([
    'email' => 'info@example.com',
], [
    'email' => ['string', 'email', new EmailDomainRule],
])->fails(); // returns true as the given domain is not in the list

Validator::make([
    'email' => 'info@subdomain.example.com',
], [
    'email' => ['string', 'email', new EmailDomainRule],
])->fails(); // returns false as the given domain matches the wildcard domain

Model customization

You can also override the default EmailDomain model to add any additional field by changing the email_domain_model setting.

This can be useful when working with a multi-tenancy scenario in a single database system: in this case you can just add a tenant_id column to the migration and model classes, and apply a global scope to the custom model.

use Maize\EmailDomainRule\EmailDomainRule as BaseEmailDomain;
use Illuminate\Database\Eloquent\Builder;

class EmailDomain extends BaseEmailDomain
{
    protected $fillable = [
        'domain',
        'tenant_id',
    ];

    protected static function booted()
    {
        static::addGlobalScope('tenantAware', function (Builder $builder) {
            $builder->where('tenant_id', auth()->user()->tenant_id);
        });
    }
}

Testing

composer test

Changelog

Please see CHANGELOG for more information on what has changed recently.

Contributing

Please see CONTRIBUTING for details.

Security Vulnerabilities

Please review our security policy on how to report security vulnerabilities.

Credits

• Riccardo Dalla Via
• All Contributors

License

The MIT License (MIT). Please see License File for more information.