Login to Google (browser style)

googleLogin.py

# encoding: utf-8
from __future__ import unicode_literals

import os
import requests
import sys


def get_google_auth_session(username, password):
    session = requests.Session()
    google_accounts_url = 'http://accounts.google.com'
    authentication_url = 'https://accounts.google.com/ServiceLoginAuth'

    r = session.get(google_accounts_url)
    galx = r.cookies['GALX']

    session.headers['User-Agent'] = \
        'Lynx/2.8.8dev.3 libwww-FM/2.14 SSL-MM/1.4.1'

    payload = {'GALX': galx,
               'continue': 'https://www.google.com/?gws_rd=ssl',
               'hl': 'en',
               '_utf8': '☃',
               # This is normally in the request.
               # bgresponse: this is a js function on post gaia_onLoginSubmit()
               'bgresponse', 'js_disabled',
               'pstMsg': 1,
               'dnConn': '',
               'checkConnection': 'youtube:206:1',
               'checkedDomains': 'youtube',
               'Email': username,
               'Passwd': password,
               'PersistentCookie': 'yes',
               'signIn': 'Sign in'}

    r = session.post(authentication_url, data=payload)

    if r.url != authentication_url:
        print "Logged in"
    else:
        print "login failed"
        sys.exit(1)

    return session

if __name__ == '__main__':
    name = 'valid-user@valid-domain.com'
    pswd = 'user password plain text'

    g_session = get_google_auth_session(name, pswd)

    # Example Google URL that requires login.
    dl_file = 'https://sandbox.google.com/storage/example_path/file.zip'
    save_file = dl_file.rsplit('/', 1)[-1]

    if not os.path.isfile(save_file):
        r = g_session.get(dl_file, stream=True)

        if r.status_code != 200:
            print "Error: Downloading: {}".format(save_file)
        else:
            with open(save_file, 'wb') as f:
                for chunk in r.iter_content(chunk_size=1024):
                    if chunk:  # filter out keep-alive new chunks
                        f.write(chunk)
                        f.flush()
            print "Success: {} downloaded".format(save_file)
    else:
        print "Skipped: {} already exits".format(save_file)

Note: Is may not work perfectly, it fails until I login once on the local machine. When I'm running on a server, lynx works just fine. I think there's something on google's end that might be monitoring the bgresponse field, or maybe I need to add a slight delay for the post. I'll try and get around it once I'm blocked again, since once it's working it works great for quite a while.

Hi, how would you deal with two steps verification ?

@evyatar54 just saw your comment I don't have the code for it right now but I've used pyotp library for getting the two step key to enter. Then simply catch the response on the first post, and post the two step reply.

https://github.com/pyotp/pyotp