arch
link- Billing - runs Ruby on Rails application, that holds back-office, API, and user-space.
- VPN-node - runs OpenVPN server instance, Tor, I2p routers, and openvpn-http-hooks ruby gem.
Workflow
- Client’s application connects to OpenVPN server on node
- OpenVPN server triggers hook on authentication attempt
- Hook runs openvpn-authenticate binary, from openvpn-http-hooks gem
- After successful authentication, OpenVPN server triggers connect hook
- Connect hook notifies billing API, about successful connection
- On disconnect action, OpenVPN also triggers disconnect hook, that notifies API, and releases client at billing.
Options activation
Connect/disconnect API actions can also return some payload to openvpn-http-hooks.
This payload is used for activating/deactivating options, like Tor, I2p or Proxy for established connection.