Implement saved sessions

helpers/database.go

@@ -37,6 +37,7 @@ func connectDatabase() (*gorm.DB, error) {
 
 	err = database.AutoMigrate(
 		&models.User{},
+		&models.UserSavedSession{},
 		&models.Section{},
 		&models.Role{},
 		&models.UserRole{},

helpers/saved_session.go

@@ -0,0 +1,56 @@
+package helpers
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+	"time"
+
+	"git.readonly.ch/bouzoure/pop-camarades/models"
+	"github.com/google/uuid"
+)
+
+func CreateSavedSession(userid uint) (models.UserSavedSession, string, error) {
+	var savedSession models.UserSavedSession
+
+	db, err := GetDatabase()
+	if err != nil {
+		return savedSession, "", err
+	}
+
+	secret := GenerateSecureToken(30)
+	hashedSecret, err := HashPassword(secret)
+	if err != nil {
+		return savedSession, "", err
+	}
+
+	now := time.Now()
+	expiration := now.AddDate(0, 0, 30)
+
+	savedSession.UserID = userid
+	savedSession.UUID = uuid.NewString()
+	savedSession.Secret = hashedSecret
+	savedSession.Expiration = expiration
+
+	db.Create(&savedSession)
+
+	return savedSession, secret, nil
+}
+
+func RemoveSavedSession(uuid string) error {
+	db, err := GetDatabase()
+	if err != nil {
+		return err
+	}
+
+	db.Delete(&models.UserSavedSession{}, "uuid = ?", uuid)
+
+	return nil
+}
+
+func GenerateSecureToken(length int) string {
+	b := make([]byte, length)
+	if _, err := rand.Read(b); err != nil {
+		return ""
+	}
+	return hex.EncodeToString(b)
+}