Passing information from command line into Chrome extension

问题

I want to be able to change the behaviour of my Chrome extension in certain cases. I control the launch of Chrome so I can add any command line flag to achieve this (preferably not one that changes the behaviour of Chrome).

I need this information to be available in the background page of the extension (not in content pages).

One thing I thought of was adding an environment variable, but apparently this isn't directly available from the extensions context.

I tried looking through the command line switches in Chromium's code and thought I may be able to use test-name.

Is the test-name available in the extension? If not is there another way to pass information into a chrome extension?

回答1:

There is no way to send information to an extension directly.

You need to use messaging one way or another.

• You could use Chrome Native Messaging to communicate with a python script for example.

• Or you could use web messaging to post a message from a web page (which could be a file:// URL).

  • You could try selenium to execute the script directly.

    from selenium import webdriver

    driver = webdriver.Chrome('/path/to/chromedriver')
    driver.get('file:///some/page.html')
    driver.execute_script('chrome.runtime.sendMessage("extensionID", "message");')
    driver.quit()

• Another extension could take care of the messaging for you.

来源：https://stackoverflow.com/questions/34629312/passing-information-from-command-line-into-chrome-extension