add filter permission and group

Author: jlopes90

src/Filters/GroupFilter.php

@@ -0,0 +1,61 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodeIgniter\Shield\Filters;
+
+use CodeIgniter\Filters\FilterInterface;
+use CodeIgniter\HTTP\RedirectResponse;
+use CodeIgniter\HTTP\RequestInterface;
+use CodeIgniter\HTTP\Response;
+use CodeIgniter\HTTP\ResponseInterface;
+
+use CodeIgniter\Shield\Exceptions\GroupException;
+
+/**
+ * Group Authorization Filter.
+ */
+class GroupFilter implements FilterInterface
+{
+    /**
+     * Do whatever processing this filter needs to do.
+     * By default it should not return anything during
+     * normal execution. However, when an abnormal state
+     * is found, it should return an instance of
+     * CodeIgniter\HTTP\Response. If it does, script
+     * execution will end and that Response will be
+     * sent back to the client, allowing for error pages,
+     * redirects, etc.
+     *
+     * @param array|null $arguments
+     *
+     * @return RedirectResponse|void
+     */
+    public function before(RequestInterface $request, $arguments = null)
+    {
+        if (empty($arguments)) {
+            return;
+        }
+
+        if (! auth()->loggedIn()) {
+            return redirect()->to('login');
+        }
+
+        if (auth()->user()->inGroup(...$arguments)) {
+            return;
+        }
+
+        throw GroupException::forUnauthorized();
+    }
+
+    /**
+     * We don't have anything to do here.
+     *
+     * @param Response|ResponseInterface $response
+     * @param array|null                 $arguments
+     */
+    public function after(RequestInterface $request, ResponseInterface $response, $arguments = null): void
+    {
+        // Nothing required
+    }
+}

src/Filters/PermissionFilter.php

@@ -0,0 +1,61 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodeIgniter\Shield\Filters;
+
+use CodeIgniter\Filters\FilterInterface;
+use CodeIgniter\HTTP\RedirectResponse;
+use CodeIgniter\HTTP\RequestInterface;
+use CodeIgniter\HTTP\Response;
+use CodeIgniter\HTTP\ResponseInterface;
+
+use CodeIgniter\Shield\Exceptions\PermissionException;
+
+/**
+ * Permission Authorization Filter.
+ */
+class PermissionFilter implements FilterInterface
+{
+    /**
+     * Do whatever processing this filter needs to do.
+     * By default it should not return anything during
+     * normal execution. However, when an abnormal state
+     * is found, it should return an instance of
+     * CodeIgniter\HTTP\Response. If it does, script
+     * execution will end and that Response will be
+     * sent back to the client, allowing for error pages,
+     * redirects, etc.
+     *
+     * @param array|null $arguments
+     *
+     * @return RedirectResponse|void
+     */
+    public function before(RequestInterface $request, $arguments = null)
+    {
+        if (empty($arguments)) {
+            return;
+        }
+
+        if (! auth()->loggedIn()) {
+            return redirect()->to('login');
+        }
+
+        foreach ($arguments as $permission) {
+            if (! auth()->user()->can($permission)) {
+                throw PermissionException::forUnauthorized();
+            }
+        }
+    }
+
+    /**
+     * We don't have anything to do here.
+     *
+     * @param Response|ResponseInterface $response
+     * @param array|null                 $arguments
+     */
+    public function after(RequestInterface $request, ResponseInterface $response, $arguments = null): void
+    {
+        // Nothing required
+    }
+}