From: Henryk Plötz <henryk@ploetzli.ch>
Date: Sun, 27 Jan 2019 12:47:46 +0000 (+0100)
Subject: Implement parsing a PNG QR code in HITAN3.challenge in CHLGUC member (instead of... 
X-Git-Tag: v2.1.0~3^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F54%2Fhead;p=thirdparty%2Fpython-fints.git

Implement parsing a PNG QR code in HITAN3.challenge in CHLGUC member (instead of flicker code data). Sparkasse does this for the new 913 "chipTAN-QR".
---

diff --git a/fints/client.py b/fints/client.py
index 8bc225c..ba3f22a 100644
--- a/fints/client.py
+++ b/fints/client.py
@@ -1,6 +1,7 @@
 import datetime
 import logging
 from abc import ABCMeta, abstractmethod
+from base64 import b64decode
 from collections import OrderedDict
 from contextlib import contextmanager
 from decimal import Decimal
@@ -943,6 +944,10 @@ class NeedTANResponse(NeedRetryResponse):
                 self.challenge_hhduc = self.challenge[12:(12+int(l,10))]
                 self.challenge = self.challenge[(12+int(l,10)):]
 
+                if self.challenge_hhduc.startswith('iVBO'):
+                    self.challenge_matrix = ('image/png', b64decode(self.challenge_hhduc))
+                    self.challenge_hhduc = None
+
         if self.challenge.startswith('CHLGTEXT'):
             self.challenge = self.challenge[12:]