Failed to open connection to "session" message bus: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11

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I'm able to run a script on linux but on that same machine, if apache runs the script, I get TimeoutException. Message: connection refused

Looking into geckodriver.log, it says:

1604976847149   mozrunner::runner   INFO    Running command: "/usr/bin/firefox" "-marionette" "-headless" "-foreground" "-no-remote" "-profile" "/tmp/rust_mozprofilehZbDYR" 

Failed to open connection to "session" message bus: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11

Running without a11y support!

*** You are running in headless mode.

I think this part is just a warning - not an error? I'm not sure.

To start Firefox, I'm basically doing this: https://github.com/timgrossmann/InstaPy/blob/master/instapy/browser.py

Which doesn't use XVFB or any virtual display, just "-headless" and the Firefox extension.

Any idea why this code would run flawless on command line but not if it's called from apache?

Here's the full trace:

TimeoutException: Message: connection refused

  File "django/core/handlers/exception.py", line 41, in inner
    response = get_response(request)
  File "django/core/handlers/base.py", line 187, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "django/core/handlers/base.py", line 185, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "mainapp/views.py", line 277, in api
    send_message(message, recipient_username)
  File "scripts/browser_login.py", line 434, in send_message
    driver = browser_login(username, password)
  File "scripts/browser_login.py", line 123, in browser_login
    options=firefox_options,
  File "selenium/webdriver/firefox/webdriver.py", line 162, in __init__
    keep_alive=True)
  File "selenium/webdriver/remote/webdriver.py", line 154, in __init__
    self.start_session(desired_capabilities, browser_profile)
  File "selenium/webdriver/remote/webdriver.py", line 243, in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
  File "selenium/webdriver/remote/webdriver.py", line 312, in execute
    self.error_handler.check_response(response)
  File "selenium/webdriver/remote/errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)

This happens exactly 60 seconds after starting the script. It sits on the webdriver initialization.

geckodriver selenium firefox
1 Answers

Any idea why this code would run flawless on command line but not if it's called from apache?
This happens exactly 60 seconds after starting the script. It sits on the webdriver initialization.

It may happen due to geckodriver installation failure or version incompatibility between geckodriver and Firefox, to prevent this use geckodriver-autoinstaller to automatically download and install geckodriver that supports the currently installed version of Firefox.

  1. Add the following module to requirements.txt and install it.
geckodriver-autoinstaller==0.1.0
  1. Remove your previous geckodriver installation code from browser.py and add the following lines at the beginning.
import geckodriver_autoinstaller  
geckodriver_autoinstaller.install()
  1. If you're doing remote execution then do the necessary settings to run command pip install -r requirements.txt everytime before executing any python file.
  2. Finally run the script browser.py.
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