cevoaustralia/aws-google-auth

Password manager + CAPTCHA

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#140 opened on Jul 14, 2019

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 (2 comments) (1 reaction) (0 assignees)Python (531 stars) (172 forks)batch import
enhancementhelp wanted

Description

The README mentions that the Google password can be supplied via stdin, for use with password managers. This seems to work, but when I try it, I can't answer the CAPTCHA prompt. The output below happens immediately without any input from me:

$ echo password-test | aws-google-auth
Google Password:
Please visit the following URL to view your CAPTCHA: https://accounts.google.com/Captcha?v=2&ctoken=<token>
ERROR:root:EOF when reading a line
Traceback (most recent call last):
  File "/Users/jtatum/projects/aws-google-auth/aws_google_auth/__init__.py", line 72, in cli
    process_auth(args, config)
  File "/Users/jtatum/projects/aws-google-auth/aws_google_auth/__init__.py", line 212, in process_auth
    google_client.do_login()
  File "/Users/jtatum/projects/aws-google-auth/aws_google_auth/google.py", line 260, in do_login
    sess = self.handle_captcha(sess, payload)
  File "/Users/jtatum/projects/aws-google-auth/aws_google_auth/google.py", line 381, in handle_captcha
    captcha_input = raw_input("Captcha (case insensitive): ") or None
EOFError: EOF when reading a line
Captcha (case insensitive): $

Contributor guide

Tech stack
python
Domain
cli
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Python CLI basicsstdin handlingCAPTCHA flow
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
Start by examining google.py around line 381 where handle captcha uses raw input. The problem is that raw input expects a terminal but stdin is being piped. Investigate how the password is read from stdin and see if a similar approach can be used for the CAPTCHA, or check if a command line flag for CAPTCHA exists. Also review the do login method to understand the authentication flow and where the CAPTCHA prompt occurs. The repository has no linked PRs, so this seems untouched.