nhance/app/Filters/AclFilter.php

<?php

namespace App\Filters;

use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use CodeIgniter\Filters\FilterInterface;
use Config\Acl;

use App\Libraries\AuthLogout;

class AclFilter implements FilterInterface
{
    public function before(RequestInterface $request, $arguments = null)
    {
        // ===================== CLI BYPASS =====================
        if (is_cli()) {
            return;
        }



        // ===================== PATH NORMALIZATION =====================
       $uri = service('uri');

        // Raw path: /PHP828APPS/ruc/nhance/index.php/dashboard/view
        $fullPath = '/' . ltrim($uri->getPath(), '/');

        // Base path: /PHP828APPS/ruc/nhance
        $basePath = rtrim(parse_url(base_url(), PHP_URL_PATH), '/');

        // Remove base path
        if ($basePath && str_starts_with($fullPath, $basePath)) {
            $path = substr($fullPath, strlen($basePath));
        } else {
            $path = $fullPath;
        }

        // Remove index.php if present
        if (str_starts_with($path, '/index.php')) {
            $path = substr($path, strlen('/index.php'));
        }

        // Normalize
        $path = '/' . ltrim($path, '/');

        // Fallback
        if ($path === '') {
            $path = '/';
        }

        // echo'<br>BASH PATH: ' . base_url();
        // echo'<br>ACL RAW PATH: ' . $fullPath;
        // echo'<br>ACL BASE PATH: ' . $basePath;
        // echo'<br>ACL FINAL PATH: ' . $path;
        // ===================== LOAD ACL =====================
        $acl = new Acl();
        $rules = $acl->rules;
        // print_rr($rules);die;
        // ===================== MATCH RULE =====================
        $matchedRule = null;

        foreach ($rules as $pattern => $rule) {
             // echo "$pattern".'---------<br>';
            if (preg_match($pattern, $path)) {
                // echo "matched - $pattern";
                $matchedRule = $rule;
                break; // FIRST MATCH WINS
            }
        }
        
         // print_r($matchedRule);//die;
        // ===================== NO RULE = DENY =====================
        if ($matchedRule === null) {
            return $this->deny($path, 'No ACL rule matched');
        }

        // ===================== PUBLIC ROUTE =====================
        if (!empty($matchedRule['public'])) {
            return; // ALLOW
        }

        // ===================== AUTH CHECK =====================
        if (!check_session()) {
            // For API requests return 401 JSON
            if ($request->isAJAX() || str_starts_with($path, '/api') || str_starts_with($path, '/employeeRest')) {
                return service('response')
                    ->setStatusCode(401)
                    ->setJSON(['error' => 'Unauthorized Resource Access']);
            }

            // For web redirect to login
           return AuthLogout::logout();
        }

        // ===================== GET USER CONTEXT =====================
       
        $userRole = check_role();   // 
        $userTeams = user_team();    // must return array of TEAM IDs
        
        $allowedRoles = $matchedRule['roles'] ?? [];
        $allowedTeams = $matchedRule['teams'] ?? [];
        // ===================== ROLE FIRST =====================
        if (!empty($allowedRoles) && in_array((int)$userRole, $allowedRoles, true)) {
            return; // ALLOW
        }
        // ===================== TEAM FALLBACK =====================
        if (!empty($allowedTeams) && is_array($userTeams)) {
            foreach ($userTeams as $teamId) {
                if (in_array($teamId, $allowedTeams, true)) {
                    return; // ALLOW
                }
            }
        }
        // ===================== DENY =====================
        return $this->deny($path, 'Role/Team not permitted');
    }

    public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
    {
        // nothing
    }

    // ===================== DENY HANDLER =====================
    protected function deny(string $path, string $reason)
    {
        log_message('error', 'ACL BLOCKED: {user} {path} - {reason}', [
            'user'   => session()->get('userid') ?? 'guest',
            'path'   => $path,
            'reason' => $reason,
        ]);

        // API / AJAX → JSON
        $request = service('request');
        if ($request->isAJAX() || str_starts_with($path, '/api') || str_starts_with($path, '/employeeRest')) {
            return service('response')
                ->setStatusCode(403)
                ->setJSON([
                    'error' => 'Forbidden',
                    'message' => 'You do not have permission to access this resource'
                ]);
        }
         
         $response = service('response');
         $response->setStatusCode(403);
         $response->setBody(view('errors/403', [
            'message' => '403 Access denied - You do not have permission to access this resource'
        ]));

        return $response;
        // Web → nice 403 page or simple text
        return service('response')
            ->setStatusCode(403)
            ->setBody('403 Forbidden - Access denied - You do not have permission to access this resource');
    }
}