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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Spekkionu\ZendAcl;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Closure;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Illuminate\Http\Request;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Illuminate\Contracts\Auth\Guard;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Illuminate\Contracts\Config\Repository as Config;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Laminas\Permissions\Acl\Acl;  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                class AclMiddleware  | 
            
            
                                                                        
                            
            
                                    
            
            
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                { | 
            
            
                                                                        
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * The Guard implementation.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @var Guard  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    protected $auth;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * The Acl implementation.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @var Acl  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    protected $acl;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * The Config implementation.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @var Config  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    protected $config;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Create a new filter instance.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param  Guard  $auth  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function __construct(Guard $auth, Acl $acl, Config $config)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->auth = $auth;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->acl = $acl;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->config = $config;  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Run the request filter.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param  \Illuminate\Http\Request  $request  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param  \Closure  $next  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return mixed  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function handle(Request $request, Closure $next, $resource = null, $permission = null)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($this->auth->guest()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (!$this->acl->isAllowed('guest', $resource, $permission)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return $this->notAllowed($request);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } elseif (!$this->acl->isAllowed($this->auth->user(), $resource, $permission)) { | 
            
                            
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                            return $this->notAllowed($request);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $next($request);  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Processes not allowed response  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param Request $request  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return \Illuminate\Http\Response  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function notAllowed(Request $request)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($request->ajax()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return response('Unauthorized.', 401); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $action = $this->config->get('zendacl.action', 'redirect'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if ($action == 'redirect') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $url = $this->config->get('zendacl.redirect', 'auth/login'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return redirect($url);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            } elseif ($action == 'route') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $route = $this->config->get('zendacl.redirect'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return redirect()->route($route);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            } elseif ($action == 'view') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $view = $this->config->get('zendacl.view', 'zendacl::unauthorized'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return view($view);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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This check looks at variables that are passed out again to other methods.
If the outgoing method call has stricter type requirements than the method itself, an issue is raised.
An additional type check may prevent trouble.