Add zodbpickle to server_find_global. Fixes #107

CHANGES.rst

@@ -4,7 +4,9 @@ Changelog
 5.1.2 (unreleased)
 ------------------
 
-- Nothing changed yet.
+- Allow ``zodbpickle.binary`` to be used in RPC requests, which is
+  necessary for compatibility with ZODB 5.4.0 on Python 2. See `issue
+  107 <https://github.com/zopefoundation/ZEO/issues/107>`_.
 
 
 5.1.1 (2017-12-18)

src/ZEO/asyncio/marshal.py

@@ -156,9 +156,10 @@ def find_global(module, name):
 
 def server_find_global(module, name):
     """Helper for message unpickler"""
+    if module not in ('ZopeUndo.Prefix', 'copy_reg', '__builtin__', 'zodbpickle'):
+        raise ImportError("Module not allowed: %s" % (module,))
+
     try:
-        if module not in ('ZopeUndo.Prefix', 'copy_reg', '__builtin__'):
-            raise ImportError
         m = __import__(module, _globals, _globals, _silly)
     except ImportError as msg:
         raise ImportError("import error %s: %s" % (module, msg))