Licensing and the Lite upgrade

Licensing and updates

Licensing uses EDD’s own extension license handler, EDD_License, pointed at the WPInterface store, which runs EDD Software Licensing. This gives:

• the key field in Downloads → Settings → Licenses, with AJAX activate, deactivate and delete;
• a weekly check_license;
• updates through EDD’s bundled EDD_SL_Plugin_Updater;
• the “View version details” popup.

Constants (main plugin file; each can be pre-defined in wp-config.php):

License::status() returns valid, missing (no key entered), inactive (key saved but never activated), or a Software Licensing error such as expired, deactivated, site_inactive, no_activations_left, disabled or invalid. License::status_message() turns these into plain language. No feature checks the license; it only controls updates and support (GPL-friendly).

Moving from Lite to Pro

Lite (wpinterface-paddle-for-edd) and Pro share the gateway ID paddle, every wpinterface_paddle_* setting, every _wpinterface_paddle_* meta key and the wpinterface-paddle/v1/webhook route. Lite refuses to boot when WPINTERFACE_PADDLE_PRO_VERSION is defined.

On activation (Lite_Upgrade::on_activation):

• Deactivates Lite.
• If the store used Lite (Lite active, or the wpinterface_paddle_lite_version option exists) and no checkout style was saved, stores wpinterface_paddle_checkout_mode = overlay.
• Sets wpinterface_paddle_pro_welcome.
• Deletes Lite’s wpinterface_paddle_needs_pro_subscriptions flag.
• Resets wpinterface_paddle_webhook_events.

On admin_init:

• Deactivates Lite if it gets activated alongside Pro.
• Calls Billing_Driver::ensure_webhook_events() once per environment that has an API key and webhook secret. This finds the notification destination for Settings::webhook_url() and PATCHes in any missing EVENTS; the secret is unchanged. Throttled to one attempt an hour after a failure. “Set up webhook” also records the environment as synced.