From ac50afa042c50ca9c50a9c9e8256ebbf018fc670 Mon Sep 17 00:00:00 2001
From: Jeffry Jesus De La Rosa <jeffryjesus@gmail.com>
Date: Fri, 11 Oct 2019 15:32:08 -0400
Subject: Change DGII form parameters

DGII has changed their validation mechanism, so we first exract the
__EVENTVALIDATION and __VIEWSTATE from the form and put them in the post
request for validation.

Closes https://github.com/arthurdejong/python-stdnum/pull/165
---
 stdnum/do/ncf.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

(limited to 'stdnum/do/ncf.py')

diff --git a/stdnum/do/ncf.py b/stdnum/do/ncf.py
index aa4c924..2c1ae9b 100644
--- a/stdnum/do/ncf.py
+++ b/stdnum/do/ncf.py
@@ -173,10 +173,14 @@ def check_dgii(rnc, ncf, timeout=30):  # pragma: no cover
     headers = {
         'User-Agent': 'Mozilla/5.0 (python-stdnum)',
     }
+    result = BeautifulSoup(
+        requests.get(url, headers=headers, timeout=timeout).text)
+    validation = result.find('input', {'name': '__EVENTVALIDATION'})['value']
+    viewstate = result.find('input', {'name': '__VIEWSTATE'})['value']
     data = {
-        '__EVENTVALIDATION': '/wEWBAKh8pDuCgK+9LSUBQLfnOXIDAKErv7SBhjZB34//pbvvJzrbkFCGGPRElcd',
-        '__VIEWSTATE': '/wEPDwUJNTM1NDc0MDQ5ZGRCFUYoDcVRgzEntcKfSuvPnC2VhA==',
-        'ctl00$cphMain$btnConsultar': 'Consultar',
+        '__EVENTVALIDATION': validation,
+        '__VIEWSTATE': viewstate,
+        'ctl00$cphMain$btnConsultar': 'Buscar',
         'ctl00$cphMain$txtNCF': ncf,
         'ctl00$cphMain$txtRNC': rnc,
     }
-- 
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