allow to store temporary sessions within the data provider

so we can persist password reset codes, OIDC auth sessions and tokens.
These features will also work in multi-node setups without sicky
sessions now

Signed-off-by: Nicola Murino <nicola.murino@gmail.com>

mfa/mfa.go

@@ -53,7 +53,7 @@ func (c *Config) Initialize() error {
 	return nil
 }
 
-// GetAvailableTOTPConfigs returns the available TOTP config names
+// GetAvailableTOTPConfigs returns the available TOTP configs
 func GetAvailableTOTPConfigs() []*TOTPConfig {
 	return totpConfigs
 }

mfa/totp.go

@@ -96,7 +96,7 @@ func (c *TOTPConfig) generate(username string, qrCodeWidth, qrCodeHeight int) (s
 }
 
 func cleanupUsedPasscodes() {
-	usedPasscodes.Range(func(key, value interface{}) bool {
+	usedPasscodes.Range(func(key, value any) bool {
 		exp, ok := value.(time.Time)
 		if !ok || exp.Before(time.Now().UTC()) {
 			usedPasscodes.Delete(key)