tls-dashboard

A dashboard written in JavaScript & HTML to check the remaining time before a TLS certificate expires. A combination of a Node script and an HTML/CSS/JS webpage to display the info.

Usage

get_cert_info.js

This is the node script that establishes a connection to the sites that you want/need to monitor, and reads info about the peer certificate. It then parses the certificate, and dumps the relevant data into another .js file (certificates.js) for use on the status page.

To setup the module, go to line 7, and switch out the contents of the array with all the hosts you're wanting to monitor:

var host_list = [
  'www.google.com',
  'www.twitter.com',
  'www.github.com',
  'www.bitbucket.com',
  'news.ycombinator.com',
  'barnacl.es'
  ];

If you're hosting this somewhere and want a regularly updating dashboard, set it up on a cron job and pass the path to your webroot as an argument to the script. e.g. node get_cert_info.js /path/to/web/root, and it will dump the certificates.js file there. Otherwise, you can keep it local, run the script when you want updated info, and just load index.html locally.

Example

Take a look at a live example page here on GitLab. Screenshot is below.

TODO

1. Comment the module functions
2. Separate the host_list into another file that can be read and versioned on its own (useful for large deployments, if you're managing 1,000s of certs)
3. Error handling for when the connection fails (right now the script hangs/exits with an uncaught error)