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
"""
    routing = kw.copy()
    assert 'type' not in routing or routing['type'] in ("http", "json")
    def decorator(f):
        if route:
            if isinstance(route, list):
                routes = route
            else:
                routes = [route]
            routing['routes'] = routes
        @functools.wraps(f)
        def response_wrap(*args, **kw):
            response = f(*args, **kw)
            if isinstance(response, Response) or f.routing_type == 'json':
                return response
            if isinstance(response, (bytes, pycompat.text_type)):
                return Response(response)
            if isinstance(response, werkzeug.exceptions.HTTPException):
                response = response.get_response(request.httprequest.environ)
            if isinstance(response, werkzeug.wrappers.BaseResponse):
                response = Response.force_type(response)
                response.set_default()
                return response
            _logger.warn("<function %s.%s> returns an invalid response type for an http request" % (f.__module__, f.__name__))
            return response
        response_wrap.routing = routing
        response_wrap.original_func = f
        return response_wrap
    return decorator
class JsonRequest(WebRequest):