--- a/viewer.py	Mon Jul 18 18:38:43 2016 +0800
+++ b/viewer.py	Mon Jul 18 18:44:12 2016 +0800
@@ -36,6 +36,12 @@
     return user
 
 
+def urlencode(**kwargs):
+    def joinparams(params):
+        return ','.join(quote_plus(i, '(),') for i in params)
+    return '&'.join(quote_plus(k) + '=' + joinparams(v) for k, v in kwargs.items())
+
+
 class BaseHandler(RequestHandler):
     def prepare(self):
         self.conn = sqlite3.connect(DBPATH)
@@ -173,11 +179,6 @@
             self.write(line)
         self.finish()
 
-    def urlencode(self, **kwargs):
-        def joinparams(params):
-            return ','.join(quote_plus(i, '(),') for i in params)
-        return '&'.join(quote_plus(k) + '=' + joinparams(v) for k, v in kwargs.items())
-
     def setlocal(self, value=None):
         kwargs = self.request.arguments.copy()
         if value is None:
@@ -188,7 +189,7 @@
         else:
             kwargs['local'] = [str(value)]
         if kwargs:
-            return '?' + self.urlencode(**kwargs)
+            return '?' + urlencode(**kwargs)
         else:
             return self.request.path
 
@@ -202,7 +203,7 @@
         else:
             kwargs['rev'] = ['rev({})'.format(value)]
         if kwargs:
-            return '?' + self.urlencode(**kwargs)
+            return '?' + urlencode(**kwargs)
         else:
             return self.request.path
 
@@ -221,7 +222,7 @@
                 except KeyError:
                     pass
             if kwargs:
-                return '?' + self.urlencode(**kwargs)
+                return '?' + urlencode(**kwargs)
             else:
                 return self.request.path
         return fn