X2Go Bug report logs - #1477
x2goclient doesn't prompt for password after authentication failure if server is using google-authenticator

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Package: x2goclient; Maintainer for x2goclient is X2Go Developers <x2go-dev@lists.x2go.org>; Source for x2goclient is src:x2goclient.

Reported by: Toby <anothercoffee@googlemail.com>

Date: Mon, 8 Jun 2020 17:00:03 UTC

Severity: normal

Found in version 4.1.2.2

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Subject: Bug#1477: Debug output
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From: Toby <anothercoffee@googlemail.com>
Date: Thu, 11 Jun 2020 11:32:48 +0100
Message-ID: <CAEScUDi0z1tWFkcD_znURLO0pgmf5XfsT6yTY6DQMzLgGBWtwA@mail.gmail.com>
To: 1477@bugs.x2go.org
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Hi

I've now got some debug output (from an ubuntu VM, --debug doesn't
work for me on fedora).
With the correct password and validation code:

x2go-DEBUG-../src/sshmasterconnection.cpp:1207> Challenge
authentication requested.
x2go-DEBUG-../src/sshmasterconnection.cpp:1085> Have prompts: 1
x2go-DEBUG-../src/sshmasterconnection.cpp:1089> Prompt[0]: |Password: |
x2go-DEBUG-../src/sshmasterconnection.cpp:1093> Password request
x2go-DEBUG-../src/sshmasterconnection.cpp:1085> Have prompts: 1
x2go-DEBUG-../src/sshmasterconnection.cpp:1089> Prompt[0]: |Verification code: |
x2go-DEBUG-../src/sshmasterconnection.cpp:1109> Checking against known
prompt #0: "Verification code:"
x2go-DEBUG-../src/sshmasterconnection.cpp:1129> Verification code request
x2go-DEBUG-../src/sshmasterconnection.cpp:1085> Have prompts: 0
x2go-DEBUG-../src/sshmasterconnection.cpp:1171> Challenge authentication OK.
x2go-DEBUG-../src/sshmasterconnection.cpp:687> User authentication OK.
x2go-DEBUG-../src/sshmasterconnection.cpp:1708> LOGIN CHECK:"LOGIN OK\r\n"
x2go-DEBUG-../src/sshmasterconnection.cpp:1711> don't have interaction
x2go-DEBUG-../src/sshmasterconnection.cpp:1744> LOOP FINISHED
x2go-DEBUG-../src/sshmasterconnection.cpp:1748> No interaction needed,
continue session
x2go-DEBUG-../src/sshmasterconnection.cpp:702> Login Check - OK
x2go-DEBUG-../src/onmainwindow.cpp:2947> SSH connection established.

But with an incorrect password, I only get repeated Verification code prompts:

x2go-DEBUG-../src/sshmasterconnection.cpp:1207> Challenge
authentication requested.
x2go-DEBUG-../src/sshmasterconnection.cpp:1085> Have prompts: 1
x2go-DEBUG-../src/sshmasterconnection.cpp:1089> Prompt[0]: |Password: |
x2go-DEBUG-../src/sshmasterconnection.cpp:1093> Password request
x2go-DEBUG-../src/sshmasterconnection.cpp:1085> Have prompts: 1
x2go-DEBUG-../src/sshmasterconnection.cpp:1089> Prompt[0]: |Verification code: |
x2go-DEBUG-../src/sshmasterconnection.cpp:1109> Checking against known
prompt #0: "Verification code:"
x2go-DEBUG-../src/sshmasterconnection.cpp:1129> Verification code request
x2go-DEBUG-../src/sshmasterconnection.cpp:1085> Have prompts: 1
x2go-DEBUG-../src/sshmasterconnection.cpp:1089> Prompt[0]: |Password: |
x2go-DEBUG-../src/sshmasterconnection.cpp:1093> Password request
x2go-DEBUG-../src/sshmasterconnection.cpp:1085> Have prompts: 1
x2go-DEBUG-../src/sshmasterconnection.cpp:1089> Prompt[0]: |Verification code: |
x2go-DEBUG-../src/sshmasterconnection.cpp:1109> Checking against known
prompt #0: "Verification code:"
x2go-DEBUG-../src/sshmasterconnection.cpp:1129> Verification code request
x2go-DEBUG-../src/sshmasterconnection.cpp:1085> Have prompts: 1
x2go-DEBUG-../src/sshmasterconnection.cpp:1089> Prompt[0]: |Password: |
x2go-DEBUG-../src/sshmasterconnection.cpp:1093> Password request
x2go-DEBUG-../src/sshmasterconnection.cpp:1085> Have prompts: 1
x2go-DEBUG-../src/sshmasterconnection.cpp:1089> Prompt[0]: |Verification code: |
x2go-DEBUG-../src/sshmasterconnection.cpp:1109> Checking against known
prompt #0: "Verification code:"
x2go-DEBUG-../src/sshmasterconnection.cpp:1129> Verification code request
x2go-DEBUG-../src/sshmasterconnection.cpp:1085> Have prompts: 1
x2go-DEBUG-../src/sshmasterconnection.cpp:1089> Prompt[0]: |Password: |
x2go-DEBUG-../src/sshmasterconnection.cpp:1093> Password request

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