README

A sleek, robust, and customisable user impersonation package for Laravel applications. This package allows administrators to securely log in as other users, aiding in replication of bugs, general support, and user management.

📦 Installation

You can install the package via Composer by running the following command in your terminal:

composer require motomedialab/impersonate

⚙️ Configuration

1. Publish Configuration (Optional)

You can publish the configuration file to customize the middleware groups to which the impersonation middleware is applied:

php artisan vendor:publish --tag="impersonate-config"

This will create a config/impersonate.php file where you can define the middleware groups (defaults to ['web', 'api']).

2. Implement the Contract on Your User Model

To control who can impersonate others, and who can be impersonated, your User model (or authenticatable model) must implement the Motomedialab\Impersonate\Contracts\ImpersonatableUser contract.

This contract requires the implementation of two methods:

<?php

namespace App\Models;

use Illuminate\Foundation\Auth\User as Authenticatable;
use Motomedialab\Impersonate\Contracts\ImpersonatableUser;

class User extends Authenticatable implements ImpersonatableUser
{
    /**
     * Determine if this user is authorised to impersonate the target user.
     */
    public function canImpersonate(ImpersonatableUser $user): bool
    {
        // Example: Only admins are authorised to impersonate others
        return $this->is_admin === true;
    }

    /**
     * Determine if this user can be impersonated by the impersonator.
     */
    public function canBeImpersonatedBy(ImpersonatableUser $user): bool
    {
        // Example: Do not allow impersonating other admins
        return ! $this->is_admin;
    }
}

🚀 Utilisation

Routing

The package registers two main routes automatically under the web and auth middleware groups:

Begin Impersonation: POST /impersonate/{id}/{guard?} (Route Name: impersonate.begin)
End Impersonation: POST /impersonate/end (Route Name: impersonate.end)

Example Blade Implementation

You can trigger impersonation from your administration dashboard using a simple form:

<!-- Start Impersonating a User -->
<form action="{{ route('impersonate.begin', ['id' => $user->id]) }}" method="POST">
    @csrf
    <button type="submit">Impersonate User</button>
</form>

To stop impersonating and return to the administrator account, you can display a banner or button in your main layout:

@if(app('impersonate')->isImpersonating())
    <div class="impersonation-banner">
        <span>You are currently logged in as {{ auth()->user()->name }}</span>
        
        <form action="{{ route('impersonate.end') }}" method="POST">
            @csrf
            <button type="submit">Return to Admin</button>
        </form>
    </div>
@endif

🔍 Checking Impersonation State

You can use the impersonate singleton/alias to query the current impersonation status:

// Check if the current session is an impersonation session
app('impersonate')->isImpersonating(); // returns bool

// Retrieve the ID of the impersonated user
app('impersonate')->getUserId(); // returns int|null

// Retrieve the auth guard being utilised
app('impersonate')->getAuthGuard(); // returns string|null

🔔 Events and Auditing

Because impersonation is highly sensitive, the package dispatches events when sessions start or end, allowing you to build comprehensive audit logs for compliance:

Motomedialab\Impersonate\Events\ImpersonateBegun: Dispatched when an impersonation session starts successfully.
- Property $user: The target user being impersonated.
- Property $impersonatedBy: The original administrator executing the impersonation.
Motomedialab\Impersonate\Events\ImpersonateEnded: Dispatched when the impersonation session is ended.
- Property $user: The user model that was being impersonated.

Important

Audit Tip: It is highly recommended to listen to these events and log them into your database or security log (e.g., "User ID 1 (Admin) started impersonation session for User ID 42"). This keeps a clear trail of administrative actions.

🧪 Testing

To run the package test suite, ensure you have installed the development dependencies and run:

composer test

📄 Licence

This package is open-source software licensed under the MIT Licence.

motomedialab / impersonate

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