Merge pull request #531 from skipperbent/v4-feature-ip

[FEATURE] IP restrict access

src/Pecee/Http/Middleware/IpRestrictAccess.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace Pecee\Http\Middleware;
+
+use Pecee\Http\Request;
+use Pecee\SimpleRouter\Exceptions\HttpException;
+
+abstract class IpRestrictAccess implements IMiddleware
+{
+    protected $ipBlacklist = [];
+    protected $ipWhitelist = [];
+
+    protected function validate(string $ip): bool
+    {
+        // Accept ip that is in white-list
+        if(in_array($ip, $this->ipWhitelist, true) === true) {
+            return true;
+        }
+
+        foreach ($this->ipBlacklist as $blackIp) {
+
+            // Blocks range (8.8.*)
+            if ($blackIp[strlen($blackIp) - 1] === '*' && strpos($ip, trim($blackIp, '*')) === 0) {
+                return false;
+            }
+
+            // Blocks exact match
+            if ($blackIp === $ip) {
+                return false;
+            }
+
+        }
+
+        return true;
+    }
+
+    public function handle(Request $request): void
+    {
+        if($this->validate((string)$request->getIp()) === false) {
+            throw new HttpException(sprintf('Restricted ip. Access to %s has been blocked', $request->getIp()), 403);
+        }
+    }
+}