FIX: new systems expect encoded body

Summary

So far the MockupResponse always returned a str. On new systems however it is expected that the return value is bytes. When debug=1 is enabled for the Container on a new OS, the MockupResponse return value thus results in an error.

Focus

See for example _log_response in model.py.

I also changed unittests accordingly.

Note

What is the python version corresponding to 0x03000000? Can we drop this condition entirely?

Test Environment

Run advancedtools unittests with debug=1.

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src/caosdb/common/administration.py

@@ -196,17 +196,9 @@ def _update_user(name, realm=None, password=None, status=None,
         e.msg = "You are not permitted to update this user."
         raise e
     except HTTPClientError as e:
-        if e.status == 409:
-            e.msg = "Entity does not exist."
-
-        if e.status == 422:
-            e.msg = """Maybe the password does not match the required standard?
-                        The current requirements are:
-                        - at least 8 characters
-                        - at least 1 number
-                        - at least 1 lower case character
-                        - at least 1 upper case character
-                        - at least 1 special character"""
+        for elem in etree.fromstring(e.body):
+            if elem.tag == "Error":
+                e.msg = elem.get("description")
         raise
 
 
@@ -231,17 +223,9 @@ def _insert_user(name, password=None, status=None, email=None, entity=None, **kw
         e.msg = "You are not permitted to insert a new user."
         raise e
     except HTTPClientError as e:
-        if e.status == 409:
-            e.msg = "User name is already in use."
-
-        if e.status == 422:
-            e.msg = """Maybe the password does not match the required standard?
-                        The current requirements are:
-                        - at least 8 characters
-                        - at least 1 number
-                        - at least 1 lower case character
-                        - at least 1 upper case character
-                        - at least 1 special character"""
+        for elem in etree.fromstring(e.body):
+            if elem.tag == "Error":
+                e.msg = elem.get("description")
         raise e