Rebrand

Code extracted from rebranding Grove Collaborative (formerly ePantry). The code consists of four major parts:

• RebrandMiddleware: manages redirects of users before and after the rebrand
• SessionExchangeMiddleware: detects and redirects anonymous requests to original domain in order to copy the original session to the new domain
• exchange_grant: view that grants the new domain permission to copy the original session
• handoff: view that copies over the original session to the new domain

Session Exchange

1. User Agent makes an anonymous request which SessionExchange detects and redirects to epantry.com/session-exchange/
2. User Agent sends cookie with request to ePantry.com which is used to identify the logged in user and creates a UUID token for their request.session.session_key. UA is redirected back to grove.com/session-exchange/<token>
3. grove.co can now copy the original session onto the current one
4. User Agent is redirected back to original requested URL as a logged in user