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<?php declare(strict_types=1); |
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namespace Scif\LaravelPretend\Middleware; |
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use Closure; |
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use Illuminate\Contracts\Auth\Access\Gate; |
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use Illuminate\Contracts\Auth\Guard; |
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use Illuminate\Contracts\Config\Repository; |
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use Illuminate\Http\Request; |
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use Illuminate\Routing\Redirector; |
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use Scif\LaravelPretend\Interfaces\Impersonable; |
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use Scif\LaravelPretend\Service\Impersonator; |
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class Impersonate |
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{ |
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/** @var Gate $gate */ |
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protected $gate; |
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/** @var Repository $config */ |
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protected $config; |
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/** @var Impersonator $impersonator */ |
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protected $impersonator; |
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/** @var Guard */ |
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protected $guard; |
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/** @var Redirector */ |
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protected $redirect; |
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const SESSION_NAME = 'pretend:_switch_user'; |
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public function __construct( |
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Guard $guard, |
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Gate $gate, |
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Repository $config, |
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Impersonator $impersonator, |
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Redirector $redirect |
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) { |
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$this->guard = $guard; |
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$this->gate = $gate; |
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$this->config = $config; |
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$this->impersonator = $impersonator; |
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$this->redirect = $redirect; |
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} |
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/** |
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* Handle an incoming request. |
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* |
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* @throws \HttpException In event of double attempt to impersonate |
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* |
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* @param \Illuminate\Http\Request $request |
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* @param \Closure $next |
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* |
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* @return mixed |
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*/ |
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public function handle(Request $request, Closure $next) |
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{ |
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if ($this->guard->guest()) { |
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return $next($request); |
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} |
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/** @var string $name */ |
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$name = $request->query('_switch_user', null); |
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$allMiddlewares = $request->route()->gatherMiddleware(); |
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if (in_array(ForbidImpersonation::class, $allMiddlewares, true)) { |
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abort(403, 'This route is forbidden to access as impersonated user'); |
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} |
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if (null !== $name) { |
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$this->checkPermission($name); |
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if ('_exit' === $name) { |
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$this->impersonator->exitImpersonation(); |
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} elseif ($this->impersonator->isImpersonated()) { |
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abort(403, 'Cannot use impersonation once you already done that'); |
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} else { |
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$this->impersonator->enterImpersonation($name); |
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} |
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if (!$request->isXmlHttpRequest() && $request->isMethod('GET')) { |
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$input = $request->input(); |
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unset($input['_switch_user']); |
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$input += $request->route()->parameters(); |
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return $this->redirect->route( |
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$request->route()->getName(), |
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$input |
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); |
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} |
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} elseif ($this->impersonator->isImpersonated()) { |
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$this->checkPermission($this->impersonator->getImpersonatingIdentifier()); |
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$this->impersonator->continueImpersonation(); |
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} |
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return $next($request); |
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} |
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/** |
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* @throws \HttpException In event of lack required abilities will be throw 403 exception |
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* |
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* @param string $username Username of impersonable user |
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*/ |
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protected function checkPermission(string $username) |
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{ |
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$ability = $this->config->get('pretend.impersonate.auth_check'); |
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if (!$this->gate->has($ability)) { |
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$this->gate->define($ability, function ($user): bool { |
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if (!$user instanceof Impersonable) { |
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return false; |
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} |
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return $user->canImpersonate(); |
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}); |
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} |
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if (!$this->gate->forUser($this->guard->user())->check($ability, [$username])) { |
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abort(403, "Current user have no ability '{$ability}'"); |
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} |
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} |
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} |
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SCIF /
laravel-pretend
