From a54ad8d760533c7284e291bbb783226b38f26fb5 Mon Sep 17 00:00:00 2001
From: Mauricio Baeza <elmau@correolibre.net>
Date: Thu, 31 Dec 2020 15:08:49 -0600
Subject: [PATCH] Cancel sign xml

---
 .../pacs/comerciodigital/comercio.py          |  5 +--
 source/app/controllers/utils.py               | 27 ++++++++++++++
 source/app/models/main.py                     | 36 ++++++++++++++++---
 source/static/js/controller/invoices.js       |  1 +
 4 files changed, 63 insertions(+), 6 deletions(-)

diff --git a/source/app/controllers/pacs/comerciodigital/comercio.py b/source/app/controllers/pacs/comerciodigital/comercio.py
index bcca148..cc38b90 100644
--- a/source/app/controllers/pacs/comerciodigital/comercio.py
+++ b/source/app/controllers/pacs/comerciodigital/comercio.py
@@ -231,9 +231,10 @@ class PACComercioDigital(object):
 
         return headers
 
-    def cancel_xml(self, cfdi, xml, info, auth={}):
-        if not auth:
+    def cancel_xml(self, cfdi, xml, auth={}, info={'tipo': 'cfdi3.3'}):
+        if DEBUG or not auth:
             auth = AUTH
+
         url = self.URL['cancelxml']
         headers = self._get_headers_cancel_xml(cfdi, info, auth)
         result = self._post(url, xml, headers)
diff --git a/source/app/controllers/utils.py b/source/app/controllers/utils.py
index 475543f..b73feb9 100644
--- a/source/app/controllers/utils.py
+++ b/source/app/controllers/utils.py
@@ -645,3 +645,30 @@ def make_xml(data, certificado):
     xslt.close()
 
     return cfdi.add_sello(stamp, cert.cer_txt)
+
+
+def cancel_xml_sign(invoice, auth, certificado):
+    cert = SATCertificate(certificado.cer, certificado.key_enc.encode())
+    pac = PACS[auth['pac']]()
+    data = {
+        'rfc': certificado.rfc,
+        'fecha': now().isoformat()[:19],
+        'uuid': invoice.uuid,
+    }
+    template = TEMPLATE_CANCEL.format(**data)
+    tree = ET.fromstring(template.encode())
+    tree = cert.sign_xml(tree)
+    sign_xml = ET.tostring(tree).decode()
+
+    result = pac.cancel_xml(invoice.xml, sign_xml, auth)
+    if pac.error:
+        result = {'ok': False, 'msg': pac.error, 'row': {}}
+        return result
+
+    tree = ET.fromstring(result)
+    date_cancel = tree.xpath('string(//Acuse/@Fecha)')[:19]
+
+    msg = 'Factura cancelada correctamente'
+    result = {'ok': True, 'msg': '', 'row': {'estatus': 'Cancelada'},
+        'Fecha': date_cancel, 'Acuse': result}
+    return result
diff --git a/source/app/models/main.py b/source/app/models/main.py
index ace7519..adeb242 100644
--- a/source/app/models/main.py
+++ b/source/app/models/main.py
@@ -3845,11 +3845,39 @@ class Facturas(BaseModel):
             obj.fecha_cancelacion = util.now()
             obj.save()
             msg = 'Factura cancelada correctamente'
-            return {'ok': True, 'msg': msg, 'row': {'estatus': 'Cancelada'}}
+            return {'ok': True, 'msg': msg, 'row': {'estatus': obj.estatus}}
+
+        # ~ if CANCEL_SIGNATURE:
+            # ~ return cls._cancel_signature(cls, id)
+        # ~ return cls._cancel_xml(cls, id)
+        return cls._cancel_xml_sign(obj)
+
+    @classmethod
+    def _cancel_xml_sign(cls, invoice):
+        if invoice.version != '3.3':
+            msg = 'Solo es posible cancelar CFDI 3.3'
+            return {'ok': False, 'msg': msg}
+
+        auth = Configuracion.get_({'fields': 'pac_auth'})
+        certificado = Certificado.get(Certificado.es_fiel==False)
+        result = utils.cancel_xml_sign(invoice, auth, certificado)
+
+        if result['ok']:
+            invoice.estatus = 'Cancelada'
+            invoice.error = ''
+            invoice.cancelada = True
+            invoice.fecha_cancelacion = result['Fecha']
+            invoice.acuse = result['Acuse'] or ''
+            cls._actualizar_saldo_cliente(cls, invoice, True)
+            cls._update_inventory(cls, invoice, True)
+            cls._uncancel_tickets(cls, invoice)
+        else:
+            invoice.error = result['msg']
+        invoice.save()
+
+        data = {'ok': result['ok'], 'msg': result['msg'], 'row': result['row']}
+        return data
 
-        if CANCEL_SIGNATURE:
-            return cls._cancel_signature(cls, id)
-        return cls._cancel_xml(cls, id)
 
     def _cancel_xml(self, id):
         msg = 'Factura cancelada correctamente'
diff --git a/source/static/js/controller/invoices.js b/source/static/js/controller/invoices.js
index 1cbd0a3..c95f30f 100644
--- a/source/static/js/controller/invoices.js
+++ b/source/static/js/controller/invoices.js
@@ -1366,6 +1366,7 @@ function send_cancel(id){
             msg_ok(values.msg)
             gi.updateItem(id, values.row)
         }else{
+            msg_error('No fue posible cancelar')
             webix.alert({
                 title: 'Error al Cancelar',
                 text: values.msg,