New option to allow teams to self reset their progression

checker/main.go

@@ -71,6 +71,7 @@ func reloadSettings(config *settings.Settings) {
 	allowRegistration = config.AllowRegistration
 	canJoinTeam = config.CanJoinTeam
 	denyTeamCreation = config.DenyTeamCreation
+	canResetProgression = config.WorkInProgress && config.CanResetProgression
 	fic.HintCoefficient = config.HintCurCoefficient
 	fic.WChoiceCoefficient = config.WChoiceCurCoefficient
 	fic.ExerciceCurrentCoefficient = config.ExerciceCurCoefficient
@@ -211,6 +212,8 @@ func treat(raw_path string) {
 			treatOpeningHint(raw_path, team)
 		case "choices":
 			treatWantChoices(raw_path, team)
+		case "reset_progress":
+			treatResetProgress(raw_path, team)
 		case ".locked":
 			treatLocked(raw_path, team)
 		default:

checker/reset_progress.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	"encoding/base64"
+	"encoding/binary"
+	"encoding/json"
+	"io/ioutil"
+	"log"
+	"math/rand"
+	"os"
+
+	"srs.epita.fr/fic-server/libfic"
+)
+
+var canResetProgression = false
+
+type askResetProgress struct {
+	ExerciceId int64 `json:"eid"`
+}
+
+func treatResetProgress(pathname string, team *fic.Team) {
+	if !canResetProgression {
+		log.Printf("[!!!] Receive reset_progress, whereas desactivated in settings.\n")
+		return
+	}
+
+	// Generate a unique identifier to follow the request in logs
+	bid := make([]byte, 5)
+	binary.LittleEndian.PutUint32(bid, rand.Uint32())
+	id := "[" + base64.StdEncoding.EncodeToString(bid) + "]"
+	log.Println(id, "New ResetProgress receive", pathname)
+
+	var ask askResetProgress
+
+	if cnt_raw, err := ioutil.ReadFile(pathname); err != nil {
+		log.Printf("%s [ERR] %s\n", id, err)
+	} else if err = json.Unmarshal(cnt_raw, &ask); err != nil {
+		log.Printf("%s [ERR] %s\n", id, err)
+	} else if ask.ExerciceId == 0 {
+		log.Printf("%s [WRN] Invalid content in reset_progress file: %s\n", id, pathname)
+		os.Remove(pathname)
+	} else if exercice, err := fic.GetExercice(ask.ExerciceId); err != nil {
+		log.Printf("%s [ERR] Unable to retrieve the given exercice: %s\n", id, err)
+	} else if exercice.Disabled {
+		log.Println("[!!!] The team submits something for a disabled exercice")
+	} else if err := team.ResetProgressionOnExercice(exercice); err != nil {
+		log.Printf("%s [ERR] Unable to reset progression: %s\n", id, err)
+	} else {
+		appendGenQueue(fic.GenStruct{Id: id, Type: fic.GenTeam, TeamId: team.Id})
+		if err = os.Remove(pathname); err != nil {
+			log.Printf("%s [ERR] %s\n", id, err)
+		}
+	}
+}