feat(solucion_factible): soporte para cancelacion CFDI 3.3

En la cancelacion de CFDIs se regresa la respuesta del PAC usando el objeto `PacCancelAnswer` con
el estatus de cancelacion del CFDI

l10n_mx_params_pac/pacs/solucion_factible.py

@@ -12,6 +12,9 @@ from openerp import api, fields, models, tools
 from openerp.tools.translate import _
 
 from ..models import exceptions as pac_exceptions
+from ..lib.pac_answer import PacCancelAnswer
+from SOAPpy.Errors import HTTPError, UnknownTypeError, UnderflowError,\
+    RecursionError
 
 
 logger = logging.getLogger(__name__)
@@ -78,22 +81,28 @@ class ParamsPac(models.Model):
         wsdl_client.soapproxy.config.dumpSOAPIn = 0
         wsdl_client.soapproxy.config.debug = 0
         wsdl_client.soapproxy.config.dict_encoding = 'UTF-8'
-        result = wsdl_client.cancelarAsincrono(*params)
+        try:
+            result = wsdl_client.cancelarAsincrono(*params)
+        except (
+            HTTPError, UnknownTypeError, UnderflowError, RecursionError
+            ) as e:
+            logger.info(e)
         status_cancel = result['status'] or ''
         mensaje_cancel = result['mensaje'] or ''
+        cancel_answer = PacCancelAnswer(uuid, status_cancel, status_cancel)
         # Something went wrong and raise exception
-        if status_cancel in pac_exceptions.cancel_error_list:
+        if cancel_answer.estatus in pac_exceptions.cancel_error_list:
             raise pac_exceptions.CancelError(
-                code=status_cancel, message=mensaje_cancel,
+                code=cancel_answer, message=mensaje_cancel,
             )
         # Cancel process was unsuccessful
-        elif status_cancel not in '200':
+        elif cancel_answer.estatus not in '200':
             raise Exception(
                 ' '.join(['Code', status_cancel, mensaje_cancel]),
             )
         # If code result is 200 then all was okay
         else:
-            return True
+            return cancel_answer
 
     def _upload_ws_file(self, fdata=None):
         """