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
""" Lazy render of a QWeb template.
        The actual rendering of the given template will occur at then end of
        the dispatching. Meanwhile, the template and/or qcontext can be
        altered or even replaced by a static response.
        :param basestring template: template to render
        :param dict qcontext: Rendering context to use
        :param bool lazy: whether the template rendering should be deferred
                          until the last possible moment
        :param kw: forwarded to werkzeug's Response object
        """
        response = Response(template=template, qcontext=qcontext, **kw)
        if not lazy:
            return response.render()
        return response
    def not_found(self, description=None):
        """ Shortcut for a `HTTP 404
        <http://tools.ietf.org/html/rfc7231#section-6.5.4>`_ (Not Found)
        response
        """
        return werkzeug.exceptions.NotFound(description)
addons_manifest = {}
controllers_per_module = collections.defaultdict(list)
class ControllerType(type):