上传又拍云时可扩展参数

@@ -117,26 +117,13 @@ class Backend extends Controller
             $this->view->engine->layout('layout/' . $this->layout);
         }
 
-        // 上传参数配置配置
-        $uploadcfg = Configvalue::upload();
-
-        $upload = [
-            'uploadurl' => $uploadcfg['uploadurl'],
-            'cdnurl'    => $uploadcfg['cdnurl'],
-            'multipart' => [
-                'policy'    => $uploadcfg['policy'],
-                'signature' => $uploadcfg['signature']
-            ],
-            'maxsize'   => $uploadcfg['maxsize'],
-            'mimetype'  => $uploadcfg['mimetype'],
-        ];
-
+        // 语言检测
         $lang = Lang::detect();
 
         // 配置信息
         $config = [
             'site'           => Config::get("site"),
-            'upload'         => $upload,
+            'upload'         => Configvalue::upload(),
             'modulename'     => $modulename,
             'controllername' => $controllername,
             'actionname'     => $actionname,

@@ -21,34 +21,53 @@ class Configvalue extends Model
     /**
      * 加载上传配置
      *
-     * @param string $savekey 保存路径 例:/{year}/{mon}/{day}/{filemd5}{.suffix}
-     * @param mixed $mimetype 上传类型 例:image/*,application/zip
-     * @param int $maxsize 上传文件大小  例:10mb
+     * @param array $params 扩展参数,常用字段savekey,mimetype,maxsize,ext-param,notify-url,return-url<br>
+     * 更多字段可参考http://docs.upyun.com/api/form_api/#_2
      *
      * @return array
      */
-    public static function upload($savekey = '', $mimetype = '', $maxsize = '')
+    public static function upload($params = [])
     {
         $uploadcfg = Config::get('upload');
         $uploadcfg = $uploadcfg ? $uploadcfg : [];
-        $bucket = isset($uploadcfg['bucket']) ? $uploadcfg['bucket'] : '';
-        $savekey = $savekey ? $savekey : (isset($uploadcfg['savekey']) ? $uploadcfg['savekey'] : '');
-        $expiration = time() + (isset($uploadcfg['expire']) ? $uploadcfg['expire'] : 0);
-        $options = [
-            'bucket'     => $bucket,
-            'save-key'   => $savekey,
-            'expiration' => $expiration
+        $uploadcfg = array_merge($uploadcfg, $params);
+        $uploadcfg['bucket'] = isset($uploadcfg['bucket']) ? $uploadcfg['bucket'] : '';
+        $savekey = isset($uploadcfg['savekey']) ? $uploadcfg['savekey'] : '';
+        $uploadcfg['save-key'] = isset($uploadcfg['save-key']) ? $uploadcfg['save-key'] : $savekey;
+        $expiration = time() + (isset($uploadcfg['expire']) ? $uploadcfg['expire'] : 600);
+        $uploadcfg['expiration'] = isset($uploadcfg['expiration']) ? $uploadcfg['expiration'] : $expiration;
+        $notifyurl = isset($uploadcfg['notifyurl']) ? $uploadcfg['notifyurl'] : '';
+        $returnurl = isset($uploadcfg['returnurl']) ? $uploadcfg['returnurl'] : '';
+        if ($notifyurl)
+            $uploadcfg['notify-url'] = $notifyurl;
+        else
+            unset($uploadcfg['notify-url']);
+        if ($returnurl)
+            $uploadcfg['return-url'] = $returnurl;
+        else
+            unset($uploadcfg['return-url']);
+
+        //设置允许的附加字段
+        $allowfields = [
+            'bucket', 'save-key', 'expiration', 'date', 'content-md5', 'notify-url', 'return-url', 'content-secret', 'content-type', 'allow-file-type', 'content-length-range',
+            'image-width-range', 'image-height-range', 'x-gmkerl-thumb', 'x-gmkerl-type', 'apps', 'b64encoded', 'ext-param'
         ];
-        $policy = base64_encode(json_encode($options));
+        $params = array_intersect_key($uploadcfg, array_flip($allowfields));
+        $policy = base64_encode(json_encode($params));
         $signature = md5($policy . '&' . (isset($uploadcfg['formkey']) ? $uploadcfg['formkey'] : ''));
+        $multipart = [
+            'policy'    => $policy,
+            'signature' => $signature,
+        ];
+
+        $multipart = array_merge($multipart, $params);
         return [
             'cdnurl'    => isset($uploadcfg['cdnurl']) ? $uploadcfg['cdnurl'] : '',
             'uploadurl' => isset($uploadcfg['uploadurl']) ? $uploadcfg['uploadurl'] : url('ajax/upload'),
-            'bucket'    => isset($uploadcfg['bucket']) ? $uploadcfg['bucket'] : '',
-            'maxsize'   => $maxsize ? $maxsize : (isset($uploadcfg['maxsize']) ? $uploadcfg['maxsize'] : ''),
-            'mimetype'  => $mimetype ? $mimetype : (isset($uploadcfg['mimetype']) ? $uploadcfg['mimetype'] : ''),
-            'policy'    => $policy,
-            'signature' => $signature,
+            'bucket'    => $uploadcfg['bucket'],
+            'maxsize'   => isset($uploadcfg['maxsize']) ? $uploadcfg['maxsize'] : '',
+            'mimetype'  => isset($uploadcfg['mimetype']) ? $uploadcfg['mimetype'] : '',
+            'multipart' => $multipart,
         ];
     }