README

PrettyOtp is a Laravel package designed to simplify the implementation of OTP (One-Time Password) mechanisms for authentication and other secure actions.

Installation

Install the package via Composer:

composer require asgarihope/pretty-otp

Configuration

Publish the package configuration file:

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

This will create a configuration file at config/otp.php:

return [
    'otp_expiry'     => 5,   // OTP expiry time in minutes
    'otp_attempts'   => 5,   // Max OTP attempts
    'otp_length'     => 6,   // OTP length
    'otp_retry_time' => 2,   // Retry time in minutes
];

Middleware

The package provides an OtpMiddleware to secure routes. You can use it as follows:

Example Usage

In your routes/web.php or routes/api.php, apply the middleware:

use Illuminate\Support\Facades\Route;

Route::middleware(['otp:key,segment,3'])->group(function () {
    Route::post('/secure-action', [SecureController::class, 'handle']);
});

Middleware Parameters

• key: The request parameter containing the mobile number.
• segment: A string to identify the OTP usage context.
• lifetimeInHours: (Optional) The duration (in hours) for which access is granted after a successful OTP validation.

Events and Listeners

The package dispatches an OtpRequested event whenever an OTP is requested. You can listen to this event and define your custom notification logic.

OtpRequested Event

Event Properties:

• $mobile: The mobile number for which the OTP is requested.
• $key: The request parameter key used for the mobile number.
• $segment: The OTP usage context.

Example Listener

use PrettyOtp\Laravel\Events\OtpRequested;

class CustomOtpListener
{
    public function handle(OtpRequested $event)
    {
        $otp = $this->generateOtp($event->mobile, $event->segment);
        $message = "Your OTP for {$event->segment} is: {$otp}";

        // Send the OTP via SMS or another notification channel
        $this->sendNotification($event->mobile, $message);
    }

    private function generateOtp($mobile, $segment)
    {
        // Custom OTP generation logic
    }

    private function sendNotification($mobile, $message)
    {
        // Custom notification logic
    }
}

Updated Listener Example

The SendOtpListener class now includes the $otp property and passes it to the sendNotification method:

use PrettyOtp\Laravel\Events\OtpRequested;
use PrettyOtp\Laravel\Services\OtpService;

abstract class SendOtpListener {

    protected $otpService;
    /**
     * @var string
     */
    protected $otp;

    public function __construct(OtpService $otpService) {
        $this->otpService = $otpService;
    }

    public function handle(OtpRequested $event) {
        $this->otp = $this->otpService->generateOtp($event->mobile, $event->segment);

        $message = "Your OTP for {$event->segment} is: {$this->otp}";

        // Replace this with your SMS/notification logic
        $this->sendNotification($event->key, $event->mobile, $message);
    }

    abstract function sendNotification(string $key, string $inputValue, string $message);
}

Service Provider

The PrettyOtpServiceProvider automatically registers the middleware and event listeners. It also publishes the configuration and translation files.

Translation

Publish the translations for customization:

php artisan vendor:publish --tag=otp-translations

Translations are located under resources/lang/vendor/pretty-otp/.

Example Flow

1. Request OTP: When the middleware detects a request for an OTP, it dispatches the OtpRequested event. This event triggers the configured listener to send the OTP to the user.

2. Validate OTP: Subsequent requests to routes protected by the middleware will require a valid OTP. The middleware handles validation and grants access if the OTP is correct.

3. Access Grant: Upon successful validation, the middleware grants access to the user for the specified lifetime (lifetimeInHours, default is null).

Cache Storage

The package uses Laravel's cache system to store OTPs, attempts, and access grants. Configure your preferred cache driver in config/cache.php.

Contribution

Contributions are welcome! Feel free to submit a pull request or report issues in the repository.

License

This package is open-sourced software licensed under the MIT license.