How to access popup login form with Selenium in Python

Question

I have been trying for a while to figure out how to enter username and password in the popup-window in this exercise:

http://pentesteracademylab.appspot.com//lab/webapp/digest

but I am entirely new to Selenium in Python. I found out how to click the button, so that the login form pops up:

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
driver = webdriver.Firefox()
driver.get("http://pentesteracademylab.appspot.com//lab/webapp/digest")
driver.find_element_by_css_selector('button').click()

but I cannot figure out how to access that window, let alone the fields in it. I have read about switch_to_frame and switch_to_window. For windows there is the window_handles showing you active windows to switch to, but this only returns a single element, which I believe is the main window, not the pop up. I also tried

alert = driver.switch_to_alert()

to no avail. The problem is that I do not know either which kind of object the popup is (frame,window,alert or something else), and I cannot find any names referring to it in the HTML code for the webpage.

Can anyone take me a step further?

Community · Accepted Answer · 2017-04-13 12:41:46Z

11

Pass the authentication step by accessing the following URL:

http://username:[email protected]/lab/webapp/digest/1

7 Comments

String Over a year ago

Ah, OK! Thank you! That changes the whole approach entirely. Does that mean that I cannot access the popup? Is the popup somehow not visible to Selenium by any standard approaches?

alecxe Over a year ago

@String yeah, this kind of popup cannot be accessed via selenium. The provided solution helps to avoid the popup being shown in the first place.

String Over a year ago

Great! Yes, I inferred that from the URL :)

gplayer Over a year ago

Any idea why this doesn't work on Chrome/Windows? The same url works on OSX.

alecxe Over a year ago

@gplayer interesting, not sure, could you please elaborate it into a separate question including all the necessary details? Thanks.

|

Tri Rizki · Accepted Answer · 2023-11-21 07:07:29Z

With Selenium version 4.0+ there is a new and more secure way to handle basic authentication. I'm using chrome so I will explain my solution using chrome driver, there should be similar way using another browser

Username = input("Your username: ")
Password = input("Your password: ")

driver = webdriver.Chrome()
driver.execute_cdp_cmd("Network.enable", {})

credentials = base64.b64encode(f"{Username}:{Password}".encode()).decode()
headers = {"headers": {"authorization": "Basic " + credentials}}

driver.execute_cdp_cmd("Network.setExtraHTTPHeaders", headers)
driver.get("http://pentesteracademylab.appspot.com//lab/webapp/digest")

The accepted solution above is working until now. But there is a security concern/issue because the webserver will log everything without encoding the user and password. Therefore, if the webserver is compromised and the hacker will most likely see the log, then boom they know your username and password.

Please see the official documentation for alternative method and different language: https://www.selenium.dev/documentation/webdriver/bidirectional/chrome_devtools/cdp_endpoint/#basic-authentication

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