add option for auto detecting asset url

app/Providers/AppServiceProvider.php

@@ -18,10 +18,12 @@ class AppServiceProvider extends ServiceProvider
         // replace HTTP_HOST with site url setted in options to prevent CDN source problems
         preg_match('/https?:\/\/([^\/]+)\/?.*/', option('site_url'), $host);
 
-        // check if host is valid
+        if (option('auto_detect_asset_url') == "0") {
-        if (isset($host[1]) && '' === preg_replace('/(?:^\[)?[a-zA-Z0-9-:\]_]+\.?/', '', $host[1])) {
+            // check if host is valid
-            $this->app['request']->headers->set('host', $host[1]);
+            if (isset($host[1]) && '' === preg_replace('/(?:^\[)?[a-zA-Z0-9-:\]_]+\.?/', '', $host[1])) {
-        };
+                $this->app['request']->headers->set('host', $host[1]);
+            };
+        }
     }
 
     /**

config/options.php

@@ -3,7 +3,7 @@
  * @Author: printempw
  * @Date:   2016-07-29 11:53:11
  * @Last Modified by:   printempw
- * @Last Modified time: 2016-10-16 20:09:27
+ * @Last Modified time: 2016-10-17 09:40:16
  */
 
 return [
@@ -36,5 +36,6 @@ return [
     'auto_del_invalid_texture'  => '0',
     'return_200_when_notfound'  => '0',
     'cache_expire_time'         => '31536000',
-    'max_upload_file_size'      => '1024'
+    'max_upload_file_size'      => '1024',
+    'auto_detect_asset_url'     => '1'
 ];

resources/views/admin/options.tpl

@@ -222,6 +222,17 @@
                                         </td>
                                     </tr>
 
+                                    <tr>
+                                        <td class="key">资源地址
+                                            <i class="fa fa-question-circle" title="根据当前 URL 自动加载资源文件。如果出现 CDN 回源问题请关闭" data-toggle="tooltip" data-placement="top"></i>
+                                        </td>
+                                        <td class="value">
+                                            <label for="auto_detect_asset_url">
+                                                <input {{ (option('auto_detect_asset_url') == '1') ? 'checked="true"' : '' }} type="checkbox" id="auto_detect_asset_url" name="auto_detect_asset_url" value="1"> 自动判断资源文件地址
+                                            </label>
+                                        </td>
+                                    </tr>
+
                                     <tr>
                                         <td class="key">HTTP 响应码</td>
                                         <td class="value">