New option to disallow team creation: join only

backend/main.go

@@ -70,6 +70,7 @@ var skipInitialGeneration = false
 func reloadSettings(config settings.FICSettings) {
 	allowRegistration = config.AllowRegistration
 	canJoinTeam = config.CanJoinTeam
+	denyTeamCreation = config.DenyTeamCreation
 	fic.HintCoefficient = config.HintCurCoefficient
 	fic.WChoiceCoefficient = config.WChoiceCurCoefficient
 	fic.ExerciceCurrentCoefficient = config.ExerciceCurCoefficient

backend/registration.go

@@ -18,6 +18,7 @@ import (
 var (
 	allowRegistration = false
 	canJoinTeam       = false
+	denyTeamCreation  = false
 )
 
 type uTeamRegistration struct {
@@ -78,6 +79,8 @@ func treatRegistration(pathname string, team_id string) {
 				log.Printf("%s [WRN] %s\n", id, err)
 			}
 		}
+	} else if denyTeamCreation {
+		log.Printf("%s [ERR] Registration received, whereas team creation denied. Skipped.\n", id)
 	} else if validTeamName(nTeam.TeamName) {
 		if team, err := fic.CreateTeam(nTeam.TeamName, uint32(rand.Int31n(16581376))); err != nil {
 			log.Printf("%s [ERR] Unable to register new team %s: %s\n", id, nTeam.TeamName, err)