fix #3836, teste correctement la présence de caractères unicode de pl…

…us de 3 bytes (#3857)
zestedesavoir · Oct 16, 2016 · 2fe667f · 2fe667f
1 parent e19d169
commit 2fe667f
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diff --git a/zds/utils/misc.py b/zds/utils/misc.py
@@ -53,4 +53,5 @@ def contains_utf8mb4(s):
     """
     if not isinstance(s, unicode):
         s = unicode(s, 'utf-8')
-    return not all(len(c.encode('utf-8')) <= 3 for c in s)
+    re_pattern = re.compile(u'[^\u0000-\uD7FF\uE000-\uFFFF]', re.UNICODE)
+    return s != re_pattern.sub(u'\uFFFD', s)
diff --git a/zds/utils/tests/misc.py → zds/utils/tests/test_misc.py b/zds/utils/tests/misc.py → zds/utils/tests/test_misc.py