Add missing files to pub/default/ and allow errors skin to be overrid…

…den in pub/*/index.php file.

errors/processor.php

@@ -111,8 +111,8 @@ public function __construct()
         $this->_root  = is_dir($this->_indexDir.'app');
 
         $this->_prepareConfig();
-        if (isset($_GET['skin'])) {
-            $this->_setSkin($_GET['skin']);
+        if (isset($_SERVER['MAGE_ERRORS_SKIN']) || isset($_GET['skin'])) {
+            $this->_setSkin($_SERVER['MAGE_ERRORS_SKIN'] ?? $_GET['skin']);
         }
     }
 
@@ -208,7 +208,7 @@ public function getBaseUrl(bool $param = false): string
      */
     protected function _getClientIp(): string
     {
-        return $_SERVER['REMOTE_ADDR'] ?? 'undefined';
+        return $_SERVER['HTTP_X_FORWARDED_FOR'] ?? $_SERVER['REMOTE_ADDR'] ?? 'undefined';
     }
 
     protected function _getIndexDir(): string

pub/default/api.php

@@ -0,0 +1,10 @@
+<?php
+//
+// This file is the entrypoint for the default OpenMage store.
+// Create a separate subdirectory of pub/ to add more virtual hosts for different stores
+// with different root directories and assign the run code and run type variables below as appropriate.
+//
+
+chdir(dirname(__DIR__, 2));
+
+require 'api.php';

pub/default/get.php

@@ -0,0 +1,5 @@
+<?php
+
+chdir(dirname(__DIR__, 2));
+
+require 'get.php';

pub/default/index.php

@@ -5,7 +5,7 @@
 // with different root directories and assign the run code and run type variables below as appropriate.
 //
 
-chdir(dirname(dirname(__DIR__)));
+chdir(dirname(__DIR__, 2));
 
 /* Store or website code */
 if (empty($_SERVER['MAGE_RUN_CODE'])) {
@@ -17,4 +17,9 @@
     $_SERVER['MAGE_RUN_TYPE'] = 'store';
 }
 
+/* Errors pages skin */
+if (empty($_SERVER['MAGE_ERRORS_SKIN'])) {
+    $_SERVER['MAGE_ERRORS_SKIN'] = 'default';
+}
+
 require 'index.php';

pub/default/install.php

@@ -0,0 +1,9 @@
+<?php
+
+chdir(dirname(__DIR__, 2));
+
+if (file_exists('app/etc/local.xml')) {
+    require 'errors/404.php';
+} else {
+    require 'install.php';
+}