You must have used moodle in your first semester, and observed it required you to solve a simple math question as a CAPTCHA.
Now, build a chrome extension which will solve this question automatically!
- Start from the boilerplate/template of the chrome extension given in the Moodle+ folder
- To install a Chrome Extension, first go to
chrome://extensionsand toggle onDeveloper mode - Then click
Load unpackedand select theMoodle+folder. Note that you will have to reload the extension each time you make changes - The
manifest.jsonfile tells Chrome about your extension, and requests it to include thelogin.jsscript whenever the url matcheshttps://moodle.iitd.ac.in/login/index.php
- Use your knowledge of HTML to inspect the moodle login page and identify the correct selector from where you can get the captcha question
- Extract the question string by reading the DOM using JavaScript, and then apply String operations to extract the relevant parts of the problem
- Use if-else logic statements to solve the math question and get the required answer
- Use DOM Manipulation again to fill the value in the input field.
- Try to make the code submit the login form too! (You may have to store the credentials for this (Make sure to remove them before pushing your code to GitHub))
- Make a separate file
style.js, and add it tocontent_scriptsinmanifest.jsonsuch that it loads each time you open any moodle page. (You may have to use wildcards for this) - Using DOM selector you can change the style of the elements. So now, try to redesign moodle according to your own creativity! For instance, try making a dark-mode for moodle!