dialog.Init multiple acknowledgements

[lyckligtax]

Hi there,
I was trying to retrieve Account Information from my bank (comdirect bank AG) and got into some trouble doing so:

While initializing the dialog d.init() @dialog.go:299 I got 4 errors :

• 9050 Die Nachricht enthaelt Fehler
• 9800 Dialog abgebrochen
• 9955 Unzulässiges TAN-Verfahren
• 3920 Verfügbare TAN-Verfahren?: mobileTAN und iTAN.

The 3920 error (securityFn) is filtered and correctly caught but unfortunately the other ones are not caught and result into a failing initialization.

In my opinion the first 3 should be caught if the ONLY OTHER error is 3920. If there were other errors the function should work as it does.

Any advice on this?

[mitch000001]

Hey, I am not sure if the errors can be caught. 9050 and 9800 suggest that the server just closed the dialog because of the mentioned error 9955.

I think in that case it is necessary to initialize the dialog with the correct securityFn. The default at the moment seems not to work for the comdirect bank AG, or so it seems.

I would try to add it into the Config in dialog/pin_tan_dialog.go and set it if available in the initialization. It still feels like a band-aid, but it could work in this case for now.

[mitch000001]

I just pushed this change to the branch explicit-securityfn. Maybe you can try it out?

[mitch000001]

In case you need a git tag: https://github.com/mitch000001/go-hbci/releases/tag/v0.1.3-beta1

[maxhille]

I am also using comdirect and while "get accounts" works, for transactions I have to modify the library in two places.

1. Settings the securityFn in pin_tan_dialog did not do anything for me. I had more success with "hardcoding" the code into message/signature.go. I did not have time yet to debug why the dialog-set value does not end up in the actual message, but I think there is a bug somewhere.

2. I guess it is comdirect-specific, but I had to change to NewAccountTransactionRequestSegmentV5 in segment/fints300.go because the V6 message HIKAZ(?) does not seem to be supported by comdirect.