README

A lightweight Laravel package to add one-time password (OTP) capabilities to any Eloquent model using polymorphic relationships.

Features
Installation
Configuration
Usage
Testing
Project Structure
Contributing
License

🚀 Features

Attach OTP functionality to any model using a trait
Polymorphic support for multiple model types
Configurable alphabet, length, expiry, and hash algorithm
Secure hashing via password_hash and password_verify
Auto-expiration and one-time use enforcement
Clean architecture: trait, model, service, generator

📦 Installation

Install the package with Composer:

composer require blamodex/laravel-otp

Publish the config file:

php artisan vendor:publish --tag=blamodex-otp-config

Run the migrations:

php artisan migrate

⚙️ Configuration

Configuration lives in config/otp.php:

return [
    /* PASSWORD ALGORITHM, SEE https://www.php.net/manual/en/function.password-hash.php FOR MORE INFO */
    'algorithm' => PASSWORD_BCRYPT,

    /* PASSWORD ALPHABET */

    //NUMBERS ONLY ALPHABET
    'alphabet' => '0123456789',

    //"WORD SAFE" ALPHABET
    //'alphabet' => '256789BCDFGHJKMNPQRSTVXW',

    //ALPHANUM ALPHABET
    //'alphabet' => '0123456789ABCDEFGHIJKLMNOPQRSTUV';

    /* PASSWORD LENGTH */
    'length' => 6,

    /* PASSWORD EXPIRY */
    'expiry' => 600
];

🧩 Usage

1. Implement the interface and use the trait

use Blamodex\Otp\Traits\OneTimePasswordable;
use Blamodex\Otp\Contracts\OneTimePasswordableInterface;

class User extends Model implements OneTimePasswordableInterface
{
    use OneTimePasswordable;
}

2. Generate an OTP

$user = User::find(1);
$otp = $user->generateOtp(); // returns raw password

3. Verify an OTP

if ($user->verifyOtp('123456')) {
    // Success
} else {
    // Failure
}

🧪 Testing

This package uses Orchestra Testbench and PHPUnit.

Run tests:

composer test

Check code style:

composer lint

Check code style and fix:

composer lint:fix

Check coverage (with Xdebug):

composer test:coverage

📁 Project Structure

src/
├── Models/
│   └── OneTimePassword.php
├── Data/
│   └── OtpData.php
├── Services/
│   ├── OtpGenerator.php
│   └── OtpService.php
├── Traits/
│   └── OneTimePasswordable.php
├── Contracts/
│   └── OneTimePasswordableInterface.php
├── config/
│   └── otp.php
└── database/
    └── migrations/
        └── 202x_xx_xx_create_one_time_passwords_table.php

tests/
├── Unit/
├── Fixtures/
└── TestCase.php

🤝 Contributing

We welcome contributions! Please see CONTRIBUTING.md for details.

📝 Changelog

Please see CHANGELOG.md for recent changes.

📄 License

MIT © Blamodex

For more information, see the LICENSE file.

blamodex/laravel-otp

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