support Code39 and fix upload urls

rest/bar.py

@@ -1,8 +1,9 @@
-from barcode import EAN13, Code128
+from barcode import EAN13, Code128, Code39
 
 BARCODE_MAP = {
   'EAN_13': EAN13,
   'CODE_128': Code128,
+  'CODE_39': Code39,
 }
 
 def get_bar_code(meta):

util-sqlpage/upload/save.sql

@@ -1,6 +1,6 @@
 SET request = json_object(
     'method', 'POST',
-    'url', 'https://shandan.one/hash',
+    'url', 'https://shandan.one/upload/hash',
     'headers', json_object(),
     'body', json_object(
         'data', $content,
@@ -11,7 +11,7 @@ SET hash = sqlpage.fetch($request);
 SET fallback = 'https://shandan.one/upload/' || sqlpage.url_encode($hash);
 SET request = json_object(
     'method', 'POST',
-    'url', 'https://shandan.one/qr',
+    'url', 'https://shandan.one/upload/qr',
     'headers', json_object(),
     'body', json_object(
         'data', $content,