Building a Secure Notetaking App with Hubble and Cloudflare

Introduction to Hubble and Security

Hubble is a promising open-source notetaking app designed for individuals and teams to take notes and collaborate with agents. However, security is a critical aspect of any notetaking app, as it stores sensitive user data. In this post, we will discuss how to build a secure notetaking app using Hubble and Cloudflare.

Securing Hubble with Cloudflare

Cloudflare is a popular security platform that provides a range of security features, including SSL encryption, firewall rules, and access controls. To secure Hubble with Cloudflare, we need to set up a Cloudflare account and configure the security features. Here is an example of how to configure Cloudflare's SSL encryption using the Cloudflare API:

curl -X POST \
  https://api.cloudflare.com/client/v4/zones/:zone_identifier/dns_records \
  -H 'Content-Type: application/json' \
  -H 'X-Auth-Email: user@example.com' \
  -H 'X-Auth-Key: example-auth-key' \
  -d '{
        "type": "CNAME",
        "name": "hubble.example.com",
        "content": "example-cloudflare-app.com",
        "proxied": true
      }'

This code example sets up a CNAME record for the Hubble app, enabling SSL encryption and proxying traffic through Cloudflare.

Implementing Access Controls with Cloudflare

Access controls are critical in securing a notetaking app, as they restrict access to authorized users. Cloudflare provides a range of access control features, including IP access rules and authentication. Here is an example of how to implement IP access rules using Cloudflare's API:

import requests

api_key = "example-auth-key"
email = "user@example.com"
zone_identifier = "example-zone-identifier"

ip_access_rule = {
    "mode": "whitelist",
    "configuration": {
        "target": "ip",
        "value": "192.0.2.1"
    }
}

response = requests.post(
    f"https://api.cloudflare.com/client/v4/zones/{zone_identifier}/firewall/access/rules",
    headers={
        "X-Auth-Email": email,
        "X-Auth-Key": api_key,
        "Content-Type": "application/json"
    },
    json=ip_access_rule
)

print(response.json())

This code example sets up an IP access rule, restricting access to the Hubble app to a specific IP address.

Practical Implementation

In this post, we have discussed how to build a secure notetaking app using Hubble and Cloudflare. We have provided practical examples of how to configure Cloudflare's security features, including SSL encryption and access controls. By following these examples, developers can build a secure notetaking app that protects user data and restricts access to authorized users.