Support invites in the registration and login flow
Summary:
Ref T7152. This substantially completes the upstream login flow. Basically, we just cookie you and push you through normal registration, with slight changes:
- All providers allow registration if you have an invite.
- Most providers get minor text changes to say "Register" instead of "Login" or "Login or Register".
- The Username/Password provider changes to just a "choose a username" form.
- We show the user that they're accepting an invite, and who invited them.
Then on actual registration:
- Accepting an invite auto-verifies the address.
- Accepting an invite auto-approves the account.
- Your email is set to the invite email and locked.
- Invites get to reassign nonprimary, unverified addresses from other accounts.
But 98% of the code is the same.
Test Plan:
- Accepted an invite.
- Verified a new address on an existing account via invite.
- Followed a bad invite link.
- Tried to accept a verified invite.
- Reassigned an email by accepting an unverified, nonprimary invite on a new account.
- Verified that reassigns appear in the activity log.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7152
Differential Revision: https://secure.phabricator.com/D11737