This new feature in Go 1.17 automatically restores the environment
variable to its previous value when a test ends, making it simpler
to set up the environment for tests and less likely that we accidentally
leave behind global state.
Also convert some of the remaining uses of check to standard Go tests.
Give Teleport clients a consistent hint of which MFA method they should
favor when facing multiple options.
To be used by tsh and Web UI to decide whether they should refer to
"U2F" or "WebAuthn" during the transitional period.
* Return preferred MFA method on ping endpoints
Add Webauthn support to a few outstanding endpoints and RPCs.
* Refactor and add Webauthn support to ChangePassword
* Add explicit JSON tag to AuthenticateUserRequest.Webauthn
* Add Webauthn support to /webapi/users/password/token
* Add Webauthn to /webapi/ping
* Add default Webauthn device name to ChangeUserAuthentication
* Tidy Ping tests
Using the standard logger results in log messages being routed to the
console even in non-debug mode, so reverting to `logrus` which will
honour the debug setting
This patch will allow the web api to (optionally) fall back from HTTPS
to HTTP under very particular circumstances:
1. The appropriate `insecure` flag was set, and
2. The target host is the loopback
If both conditions are met, this patch will allow the WebAPI client to
fall back to plain HTTP when attempting to login to the auth server.
Adds a configurable MotD to the auth service. If a message is set, any
attempt to login into a cluster via `tsh` will display that message and
not begin to log the user in until that message is acknowledged.
Andrew Burke