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<?php
namespace Illuminate\Auth\Middleware;
use Closure;
use Illuminate\Contracts\Auth\Access\Gate;
use Illuminate\Database\Eloquent\Model;
class Authorize
{
/**
* The gate instance.
*
* @var \Illuminate\Contracts\Auth\Access\Gate
*/
protected $gate;
/**
* Create a new middleware instance.
*
* @param \Illuminate\Contracts\Auth\Access\Gate $gate
* @return void
*/
public function __construct(Gate $gate)
{
$this->gate = $gate;
}
/**
* Handle an incoming request.
*
* @param \Illuminate\Http\Request $request
* @param \Closure $next
* @param string $ability
* @param array|null ...$models
* @return mixed
*
* @throws \Illuminate\Auth\AuthenticationException
* @throws \Illuminate\Auth\Access\AuthorizationException
*/
public function handle($request, Closure $next, $ability, ...$models)
{
$this->gate->authorize($ability, $this->getGateArguments($request, $models));
return $next($request);
}
/**
* Get the arguments parameter for the gate.
*
* @param \Illuminate\Http\Request $request
* @param array|null $models
* @return \Illuminate\Database\Eloquent\Model|array|string
*/
protected function getGateArguments($request, $models)
{
if (is_null($models)) {
return [];
}
return collect($models)->map(function ($model) use ($request) {
return $model instanceof Model ? $model : $this->getModel($request, $model);
})->all();
}
/**
* Get the model to authorize.
*
* @param \Illuminate\Http\Request $request
* @param string $model
* @return \Illuminate\Database\Eloquent\Model|string
*/
protected function getModel($request, $model)
{
if ($this->isClassName($model)) {
return trim($model);
} else {
return $request->route($model, null) ?:
((preg_match("/^['\"](.*)['\"]$/", trim($model), $matches)) ? $matches[1] : null);
}
}
/**
* Checks if the given string looks like a fully qualified class name.
*
* @param string $value
* @return bool
*/
protected function isClassName($value)
{
return strpos($value, '\\') !== false;
}
}
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