Impacted versions: 8-11

## Current behavior:

If during an XMLRPC call you try to get anything from `http.request`, you'd get a `RuntimeError` such as this one:

```
Traceback (most recent call last):
  File "/opt/odoo/custom/src/odoo/odoo/service/wsgi_server.py", line 56, in xmlrpc_return
    result = odoo.http.dispatch_rpc(service, method, params)
  File "/opt/odoo/custom/src/odoo/odoo/http.py", line 118, in dispatch_rpc
    result = dispatch(method, params)
  File "/opt/odoo/custom/src/odoo/odoo/service/common.py", line 57, in dispatch
    return g[exp_method_name](*params)
  [...]
  File "/usr/local/lib/python2.7/dist-packages/werkzeug/local.py", line 343, in __getattr__
    return getattr(self._get_current_object(), name)
  File "/usr/local/lib/python2.7/dist-packages/werkzeug/local.py", line 302, in _get_current_object
    return self.__local()
  File "/usr/local/lib/python2.7/dist-packages/werkzeug/local.py", line 135, in _lookup
    raise RuntimeError(\'object unbound\')
RuntimeError: object unbound
```

This renders imposible in practice to fix issues such as https://github.com/OCA/server-tools/issues/1125 or to implement https://github.com/odoo/odoo/pull/22212#issuecomment-380425764.

## Expected behavior:

XML-RPC calls should have request, since after all they belong to one. Otherwise, at least there should be an alternate way to access the request parameters.

Fix for v12: https://github.com/odoo/odoo/pull/24187

@Tecnativa
odoo/http.py
if not csrf:
            return False
        try:
            hm, _, max_ts = str(csrf).rpartition('o')
        except UnicodeEncodeError:
            return False
        if max_ts:
            try:
                if int(max_ts) < int(time.time()):
                    return False
            except ValueError:
                return False
        token = self.session.sid
        msg = '%s%s' % (token, max_ts)
        secret = self.env['ir.config_parameter'].sudo().get_param('database.secret')
        assert secret, "CSRF protection requires a configured database secret"
        hm_expected = hmac.new(secret.encode('ascii'), msg.encode('utf-8'), hashlib.sha1).hexdigest()
        return consteq(hm, hm_expected)
def route(route=None, **kw):