# HG changeset patch
# User Goffi <goffi@goffi.org>
# Date 1560362745 -7200
# Node ID aee3d8fa679fc4e9808f0e91a822e3c96f3c35e0
# Parent  7b05ebc46141021e7b65426d88bd4fe428a70bf6
pages: fixed cached data when `url_cache` is used:

`request.template_data` and `request.data` where cached using a shallow copy,
causing trouble when a mutable object was used.
This has been fixed by using a deepcopy, which should not be a resource issue as
`request.data` and `request.template_data` should contain a few data in most
cases.

diff -r 7b05ebc46141 -r aee3d8fa679f libervia/server/pages.py
--- a/libervia/server/pages.py	Wed Jun 12 09:12:09 2019 +0200
+++ b/libervia/server/pages.py	Wed Jun 12 20:05:45 2019 +0200
@@ -39,6 +39,7 @@
 import urllib
 import time
 import hashlib
+import copy
 
 log = getLogger(__name__)
 
@@ -82,18 +83,18 @@
     def __init__(self, request):
         super(CacheURL, self).__init__()
         try:
-            self._data = request.data.copy()
+            self._data = copy.deepcopy(request.data)
         except AttributeError:
             self._data = {}
-        self._template_data = request.template_data.copy()
+        self._template_data = copy.deepcopy(request.template_data)
         self._prepath = request.prepath[:]
         self._postpath = request.postpath[:]
         del self._template_data["csrf_token"]
 
     def use(self, request):
         self.last_access = time.time()
-        request.data = self._data.copy()
-        request.template_data.update(self._template_data)
+        request.data = copy.deepcopy(self._data)
+        request.template_data.update(copy.deepcopy(self._template_data))
         request.prepath = self._prepath[:]
         request.postpath = self._postpath[:]