Copilot: How can I integrate Aegis Authenticator into this repository?

[rossaddison]

Great! Here’s a high-level implementation plan for integrating TOTP-based 2FA (compatible with Aegis Authenticator, Google Authenticator, etc.) into your rossaddison/invoice app, making it optional for users:

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1. Update the User Model

• Add fields to your User (or Identity) entity:
  • totpSecret (string, nullable): To store the user’s TOTP secret (base32).
  • is2FAEnabled (boolean): To indicate if 2FA is enabled for the user.

2. 2FA Enrollment Flow

• After a user logs in (via OAuth or classic login), if 2FA is not enabled:
  • Offer a “Set up 2FA” option in their profile/settings.
  • When selected:
    • Generate a new random TOTP secret (using a library like spomky-labs/otphp or similar).
    • Show the secret as a QR code (using a PHP QR generator library) and as plain text.
    • Instruct the user to scan the QR with Aegis Authenticator.
    • Ask the user to enter a generated 6-digit code to verify their setup.
    • On correct code, save the secret and set is2FAEnabled to true.

3. 2FA Verification on Login

• After a successful (OAuth or password) login, check is2FAEnabled:
  • If enabled, prompt the user for their 6-digit TOTP code.
  • Verify the code using the stored secret.
  • Only proceed with login if the code is valid.

4. 2FA Management

• In user settings, allow users to:
  • Disable 2FA (require password + 2FA to disable).
  • Regenerate (reset) their TOTP secret.
  • Show backup codes (optional, for account recovery).

5. Security & Backup

• Ensure TOTP secrets are stored securely (e.g., encrypted at rest).
• Offer backup codes for account recovery, and a process to disable 2FA via support if needed.

6. UI/UX

• Update login and profile pages:
  • On login: Add step for code entry if user has 2FA enabled.
  • In settings: Add 2FA setup, reset, disable, and backup code management options.

7. Testing

• Test flows with and without 2FA enabled.
• Test edge cases (wrong code, clock drift, lost device, etc.).

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Would you like example code snippets for any of these steps, or guidance on the libraries to use for TOTP and QR code generation in your PHP stack?

[rossaddison]

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