selenium_python.py

"""Selenium + ChromeDriver through a local proxy hop.

Start the hop first, in another terminal:

    BOTPROXY_USERNAME=pxu1000-0 BOTPROXY_PASSWORD=your-password \\
        python3 python/proxy_hop.py

then run this:

    pip install selenium
    python3 examples/selenium_python.py

Chrome never sees a credential, so there is no auth prompt to dismiss, no
extension to build, and nothing that a Chrome release can take away.
"""

from selenium import webdriver

HOP = "127.0.0.1:8888"


def make_driver(headless=True):
    options = webdriver.ChromeOptions()
    options.add_argument("--proxy-server=http://%s" % HOP)
    # Chrome resolves the target itself when it talks to a proxy, but it will
    # still bypass the proxy for localhost unless told otherwise. Harmless
    # here, and it keeps a local test server reachable.
    options.add_argument("--proxy-bypass-list=<-loopback>")
    if headless:
        options.add_argument("--headless=new")
    return webdriver.Chrome(options=options)


def main():
    driver = make_driver()
    try:
        driver.get("https://httpbin.org/ip")
        print("exit IP:", driver.find_element("tag name", "pre").text.strip())
    finally:
        driver.quit()


if __name__ == "__main__":
    main()