[8.x] Extract method to get proxies (#38386)

* Extract method to get proxies

* Update TrustProxies.php

Co-authored-by: Taylor Otwell <[email protected]>

Author: mnabialek

src/Illuminate/Http/Middleware/TrustProxies.php

@@ -10,7 +10,7 @@ class TrustProxies
     /**
      * The trusted proxies for the application.
      *
-     * @var string|array|null
+     * @var array|string|null
      */
     protected $proxies;
 
@@ -47,7 +47,7 @@ public function handle(Request $request, Closure $next)
      */
     protected function setTrustedProxyIpAddresses(Request $request)
     {
-        $trustedIps = $this->proxies;
+        $trustedIps = $this->proxies();
 
         if ($trustedIps === '*' || $trustedIps === '**') {
             return $this->setTrustedProxyIpAddressesToTheCallingIp($request);
@@ -123,4 +123,14 @@ protected function getTrustedHeaderNames()
 
         return $this->headers;
     }
+
+    /**
+     * Get the trusted proxies.
+     *
+     * @return array|string|null
+     */
+    protected function proxies()
+    {
+        return $this->proxies;
+    }
 }