user data export and import interfce (enhance)

* update items and dragons id on import
* check for viking name unique
* add unique constraints in database
* add simple import/export html form for localhosted srvers

src/Controllers/Common/ImportExportController.cs

@@ -0,0 +1,203 @@
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using System.Text.Encodings.Web;
+using sodoff.Model;
+using sodoff.Schema;
+using sodoff.Util;
+
+namespace sodoff.Controllers.Common;
+public class ExportController : ControllerBase {
+    private readonly DBContext ctx;
+
+    public ExportController(DBContext ctx) {
+        this.ctx = ctx;
+    }
+
+    [HttpPost]
+    [Route("Export")]
+    public IActionResult Export([FromForm] string username, [FromForm] string password) {
+        // Authenticate user by Username
+        User? user = ctx.Users.FirstOrDefault(e => e.Username == username);
+        if (user is null || new PasswordHasher<object>().VerifyHashedPassword(null, user.Password, password) == PasswordVerificationResult.Failed) {
+            return Unauthorized("Invalid username or password.");
+        }
+
+        // Serialize to JSON
+        var options = new JsonSerializerOptions
+        {
+            ReferenceHandler = ReferenceHandler.IgnoreCycles,
+            Encoder = System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping,
+            WriteIndented = true
+        };
+        string jsonData = JsonSerializer.Serialize(user, options);
+
+        return Ok(jsonData);
+    }
+
+    [HttpPost]
+    [Route("Import")]
+    public IActionResult Import([FromForm] string username, [FromForm] string password, [FromForm] string vikingName, [FromForm] IFormFile dataFile, [FromForm] string? newVikingName) {
+        User? user = ctx.Users.FirstOrDefault(e => e.Username == username);
+        if (user is null || new PasswordHasher<object>().VerifyHashedPassword(null, user.Password, password) == PasswordVerificationResult.Failed) {
+            return Unauthorized("Invalid username or password.");
+        }
+
+        User user_data;
+        using (var reader = new StreamReader(dataFile.OpenReadStream())) {
+            user_data = System.Text.Json.JsonSerializer.Deserialize<User>(reader.ReadToEnd());
+        }
+
+        foreach (var v in user_data.Vikings) {
+            if (v.Name == vikingName) {
+                if (String.IsNullOrEmpty(newVikingName))
+                    newVikingName = vikingName;
+
+                if (ctx.Vikings.Count(e => e.Name == newVikingName) > 0) {
+                    return Conflict("Viking name already in use");
+                }
+
+                if (newVikingName != vikingName) {
+                    AvatarData avatarData = XmlUtil.DeserializeXml<AvatarData>(v.AvatarSerialized);
+                    avatarData.DisplayName = newVikingName;
+                    v.AvatarSerialized = XmlUtil.SerializeXml(avatarData);
+                }
+
+                Viking viking = new Viking {
+                    Uid = Guid.NewGuid(),
+                    Name = newVikingName,
+                    User = user,
+                    AvatarSerialized = v.AvatarSerialized,
+                    CreationDate = DateTime.UtcNow,
+                    BirthDate = v.BirthDate,
+                    Gender = v.Gender,
+                    GameVersion = v.GameVersion
+                };
+                user.Vikings.Add(viking);
+
+                Dictionary<int, Guid> dragonIds = new();
+                foreach (var x in v.Dragons) {
+                    x.Viking = viking;
+                    x.EntityId = Guid.NewGuid();
+                    dragonIds.Add(x.Id, x.EntityId);
+                    x.Id = 0;
+                    ctx.Dragons.Add(x);
+                }
+                Dictionary<int, int> itemIds = new();
+                foreach (var x in v.InventoryItems) {
+                    itemIds.Add(x.Id, x.ItemId);
+                    x.Id = 0;
+                    x.Viking = viking;
+                    ctx.InventoryItems.Add(x);
+                }
+
+                ctx.SaveChanges(); // need for get new ids of dragons and items
+
+                HashSet<int> usedItemIds = new();
+                foreach (var x in v.Rooms) {
+                    x.Viking = viking;
+                    if (int.TryParse(x.RoomId, out int roomID)) {
+                        // numeric room name is inventory item id
+                        // remap old value to new value based on item id value
+                        roomID = viking.InventoryItems.FirstOrDefault(e => e.ItemId == itemIds[roomID] && !usedItemIds.Contains(e.Id)).Id;
+                        usedItemIds.Add(roomID);
+                        x.RoomId = roomID.ToString();
+                    }
+                    ctx.Rooms.Add(x);
+                }
+                foreach (var x in v.PairData) {
+                    x.Viking = viking;
+                    if (x.PairId == 2014) { // stables data
+                        foreach (var p in x.Pairs.Where(e => e.Key.StartsWith("Stable"))) {
+                            StableData stableData = XmlUtil.DeserializeXml<StableData>(p.Value);
+                            stableData.InventoryID = viking.InventoryItems.FirstOrDefault(e => e.ItemId == stableData.ItemID && !usedItemIds.Contains(e.Id)).Id;
+                            usedItemIds.Add(stableData.InventoryID);
+                            foreach (var n in stableData.NestList) {
+                                if (n.PetID != 0)
+                                    n.PetID = viking.Dragons.FirstOrDefault(d => d.EntityId == dragonIds[n.PetID]).Id;
+                            }
+                            p.Value = XmlUtil.SerializeXml(stableData);
+                        }
+                    }
+                    ctx.PairData.Add(x);
+                }
+
+                foreach (var x in v.Images) {
+                    x.Viking = viking;
+                    ctx.Images.Add(x);
+                }
+                foreach (var x in v.MissionStates) {
+                    x.Viking = viking;
+                    ctx.MissionStates.Add(x);
+                }
+                foreach (var x in v.TaskStatuses) {
+                    x.Viking = viking;
+                    ctx.TaskStatuses.Add(x);
+                }
+                foreach (var x in v.AchievementTaskStates) {
+                    x.Viking = viking;
+                    ctx.AchievementTaskState.Add(x);
+                }
+                foreach (var x in v.AchievementPoints) {
+                    x.Viking = viking;
+                    ctx.AchievementPoints.Add(x);
+                }
+                foreach (var x in v.ProfileAnswers) {
+                    x.Viking = viking;
+                    ctx.ProfileAnswers.Add(x);
+                }
+                foreach (var x in v.GameData) {
+                    x.Viking = viking;
+                    ctx.GameData.Add(x);
+                }
+                foreach (var x in v.SavedData) {
+                    x.Viking = viking;
+                    ctx.SavedData.Add(x);
+                }
+                foreach (var x in v.Parties) {
+                    x.Viking = viking;
+                    ctx.Parties.Add(x);
+                }
+                foreach (var x in v.UserMissions) {
+                    x.Viking = viking;
+                    ctx.UserMissions.Add(x);
+                }
+                foreach (var x in v.UserBadgesCompleted) {
+                    x.Viking = viking;
+                    ctx.UserBadgesCompleted.Add(x);
+                }
+                if (v.Ratings.Count > 0) {
+                    viking.Ratings = new List<Rating>();
+                    foreach (var x in v.Ratings) {
+                        // TODO (non-SoD) add rating via SetRating(viking, x.Rank.CategoryID, x.Rank.RatedEntityID, x.Rank.RatedUserID, x.Value);
+                    }
+                }
+                if (v.Neighborhood != null) {
+                    v.Neighborhood.Viking = viking;
+                    ctx.Neighborhoods.Add(v.Neighborhood);
+                }
+
+                if (v.SelectedDragon != null)
+                    viking.SelectedDragon = viking.Dragons.FirstOrDefault(d => d.EntityId == dragonIds[v.SelectedDragon.Id]);
+
+                ctx.SaveChanges();
+                return Ok("OK");
+            }
+        }
+        return Ok("Viking Not Found");
+    }
+
+    [HttpGet]
+    [Route("Export")]
+    public IActionResult Export() {
+        return Content(XmlUtil.ReadResourceXmlString("html.export"), "application/xhtml+xml");
+    }
+
+    [HttpGet]
+    [Route("Import")]
+    public IActionResult Import() {
+        return Content(XmlUtil.ReadResourceXmlString("html.import"), "application/xhtml+xml");
+    }
+}

src/Model/AchievementPoints.cs

@@ -1,12 +1,15 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model;
 public class AchievementPoints {
+    [JsonIgnore]
     public int VikingId { get; set; }
 
     public int Type { get; set; }
 
     public int Value { get; set; }
 
+    [JsonIgnore]
     public virtual Viking? Viking { get; set; }
 }

src/Model/AchievementTaskState.cs

@@ -1,15 +1,18 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 using Microsoft.EntityFrameworkCore;
 
 namespace sodoff.Model;
 
 [PrimaryKey(nameof(TaskId), nameof(VikingId))]
 public class AchievementTaskState {
+    [JsonIgnore]
     public int VikingId { get; set; }
 
     public int TaskId { get; set; }
 
     public int Points { get; set; }
 
+    [JsonIgnore]
     public virtual Viking? Viking { get; set; }
 }

src/Model/DBContext.cs

@@ -23,6 +23,9 @@ public class DBContext : DbContext {
     public DbSet<ProfileAnswer> ProfileAnswers { get; set; } = null!;
     public DbSet<MMORole> MMORoles { get; set; } = null!;
     public DbSet<Party> Parties { get; set; } = null!;
+    public DbSet<AchievementTaskState> AchievementTaskState { get; set; } = null!;
+    public DbSet<SavedData> SavedData { get; set; } = null!;
+    public DbSet<UserMissionData> UserMissions { get; set; } = null!;
     public DbSet<Neighborhood> Neighborhoods { get; set; } = null!;
     // we had a brief debate on whether it's neighborhoods or neighborheed
     public DbSet<Group> Groups { get; set; } = null!;

src/Model/Dragon.cs

@@ -1,22 +1,29 @@
-using System.ComponentModel.DataAnnotations;
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model;
 
+[Index(nameof(EntityId), IsUnique = true)]
 public class Dragon {
     [Key]
+    // [JsonIgnore] used in serialised xml (stables)
     [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
     public int Id { get; set; }
 
     [Required]
     public Guid EntityId { get; set; }
+
     [Required]
+    [JsonIgnore]
     public int VikingId { get; set; }
 
     public string? RaisedPetData { get; set; }
 
     public int? PetXP { get; set; }
-    
+
+    [JsonIgnore]
     public virtual Viking Viking { get; set; } = null!;
     public virtual ICollection<PairData> PairData { get; set; } = null!;
 }

src/Model/GameData.cs

@@ -1,10 +1,13 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model;
 public class GameData {
     [Key]
+    [JsonIgnore]
     public int Id { get; set; }
 
+    [JsonIgnore]
     public int VikingId { get; set; }
 
     public int GameId { get; set; }
@@ -15,6 +18,6 @@ public class GameData {
     public bool Win {  get; set; }
     public bool Loss { get; set; }
     public virtual ICollection<GameDataPair> GameDataPairs { get; set; } = null!;
+    [JsonIgnore]
     public virtual Viking Viking { get; set; } = null!;
-
 }

src/Model/GameDataPair.cs

@@ -1,11 +1,15 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model;
 public class GameDataPair {
     [Key]
+    [JsonIgnore]
     public int Id { get; set; }
+    [JsonIgnore]
     public int GameDataId { get; set; }
     public string Name { get; set; } = null!;
     public int Value { get; set; }
+    [JsonIgnore]
     public virtual GameData GameData { get; set; } = null!;
 }

src/Model/Image.cs

@@ -1,4 +1,5 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 using Microsoft.EntityFrameworkCore;
 
 namespace sodoff.Model;
@@ -12,11 +13,13 @@ public class Image {
     public int ImageSlot { get; set; }
 
     [Required]
+    [JsonIgnore]
     public int VikingId { get; set; }
 
     public string? ImageData { get; set; }
 
     public string? TemplateName { get; set; }
 
+    [JsonIgnore]
     public virtual Viking Viking { get; set; } = null!;
 }

src/Model/InventoryItem.cs

@@ -1,18 +1,22 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model {
     public class InventoryItem {
         [Key]
+        // [JsonIgnore] used as room id, used in serialised xml (pairs, ...)
         public int Id {  get; set; }
 
         public int ItemId { get; set; }
 
+        [JsonIgnore]
         public int VikingId { get; set; }
 
         public string? StatsSerialized { get; set; }
 
         public string? AttributesSerialized { get; set; }
 
+        [JsonIgnore]
         public virtual Viking Viking { get; set; } = null!;
 
         public int Quantity { get; set; }

src/Model/MMORole.cs

@@ -1,15 +1,18 @@
 using sodoff.Schema;
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model;
 
 public class MMORole {
     [Key]
+    [JsonIgnore]
     public int Id { get; set; }
 
     public int VikingId { get; set; }
 
     public Role Role { get; set; }
 
+    [JsonIgnore]
     public virtual Viking? Viking { get; set; }
 }

src/Model/MissionState.cs

@@ -1,15 +1,19 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model;
 
 public class MissionState {
     [Key]
+    [JsonIgnore]
     public int Id { get; set; }
 
     public int MissionId { get; set; }
 
+    [JsonIgnore]
     public int VikingId { get; set; }
 
+    [JsonIgnore]
     public virtual Viking? Viking { get; set; }
 
     public MissionStatus MissionStatus { get; set; }
@@ -19,4 +23,4 @@ public class MissionState {
 
 public enum MissionStatus {
     Upcoming,Active,Completed
-}
+}

src/Model/Neighborhood.cs

@@ -1,18 +1,20 @@
 using sodoff.Schema;
 using System.ComponentModel.DataAnnotations;
-using System.Data;
-using System.Diagnostics.CodeAnalysis;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model
 {
     public class Neighborhood
     {
+        [JsonIgnore]
         public virtual Viking? Viking { get; set; }
 
         [Key]
+        [JsonIgnore]
         public int Id { get; set; }
 
         [Required]
+        [JsonIgnore]
         public int VikingId { get; set; }
 
         [Required]

src/Model/Pair.cs

@@ -1,18 +1,22 @@
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model;
 
 public class Pair {
     [Key]
     [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+    [JsonIgnore]
     public int Id { get; set; }
 
     public string Key { get; set; } = null!;
 
     public string Value { get; set; } = null!;
 
+    [JsonIgnore]
     public int MasterId { get; set; }
 
+    [JsonIgnore]
     public virtual PairData PairData { get; set; } = null!;
 }

src/Model/PairData.cs

@@ -1,6 +1,7 @@
 using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model;
 
@@ -9,21 +10,28 @@ namespace sodoff.Model;
 public class PairData {
     [Key]
     [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+    [JsonIgnore]
     public int Id { get; set; }
 
     public int PairId { get; set; }
 
+    [JsonIgnore]
     public Guid? UserId { get; set; }
 
+    [JsonIgnore]
     public int? VikingId { get; set; }
 
+    [JsonIgnore]
     public int? DragonId { get; set; }
 
     public virtual ICollection<Pair> Pairs { get; set; }
 
+    [JsonIgnore]
     public virtual User? User { get; set; }
 
+    [JsonIgnore]
     public virtual Viking? Viking { get; set; }
 
+    [JsonIgnore]
     public virtual Dragon? Dragon { get; set; }
 }

src/Model/Party.cs

@@ -1,18 +1,21 @@
 using System.ComponentModel.DataAnnotations;
-using System.ComponentModel.DataAnnotations.Schema;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model
 {
     public class Party
     {
         [Key]
+        [JsonIgnore]
         public int Id { get; set; }
         public string Location { get; set; } = null!;
+        [JsonIgnore]
         public int VikingId { get; set; }
         public DateTime ExpirationDate { get; set; } = DateTime.UtcNow;
         public bool? PrivateParty { get; set; }
         public string LocationIconAsset { get; set; } = null!;
         public string AssetBundle { get; set; } = null!;
+        [JsonIgnore]
         public virtual Viking? Viking { get; set; }
     }
 }

src/Model/ProfileAnswer.cs

@@ -1,15 +1,19 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model
 {
     public class ProfileAnswer
     {
         [Key]
+        [JsonIgnore]
         public int Id { get; set; }
+        [JsonIgnore]
         public int VikingId { get; set; }
         public int QuestionID { get; set; }
         public int AnswerID { get; set; }
 
+        [JsonIgnore]
         public virtual Viking Viking { get; set; } = null!;
     }
 }

src/Model/Rating.cs

@@ -1,17 +1,21 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model;
 
 public class Rating {
     [Key]
+    [JsonIgnore]
     public int Id { get; set; }
 
+    [JsonIgnore]
     public int VikingId { get; set; }
     public int RankId { get; set; }
 
     public int Value { get; set; }
     public DateTime Date { get; set; }
 
+    [JsonIgnore]
     public virtual Viking Viking { get; set; }
     public virtual RatingRank Rank { get; set; }
 }

src/Model/RatingRank.cs

@@ -1,9 +1,11 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model;
 
 public class RatingRank {
     [Key]
+    [JsonIgnore]
     public int Id { get; set; }
 
     public int CategoryID { get; set; }
@@ -14,5 +16,6 @@ public class RatingRank {
     public float RatingAverage { get; set; } // On a scale of 1-5
     public DateTime UpdateDate { get; set; }
 
+    [JsonIgnore]
     public virtual ICollection<Rating> Ratings { get; set; } = null!;
 }

src/Model/Room.cs

@@ -1,18 +1,22 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model;
 
 public class Room {
     [Key]
+    [JsonIgnore]
     public int Id { get; set; }
 
     public string RoomId { get; set; }
 
+    [JsonIgnore]
     public int VikingId { get; set; }
 
     public string? Name { get; set; }
 
+    [JsonIgnore]
     public virtual Viking? Viking { get; set; }
 
     public virtual ICollection<RoomItem> Items { get; set; } = null!;
-}
+}

src/Model/RoomItem.cs

@@ -1,12 +1,16 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model;
 public class RoomItem {
     [Key]
+    [JsonIgnore]
     public int Id { get; set; }
 
+    [JsonIgnore]
     public int RoomId { get; set; }
 
+    [JsonIgnore]
     public virtual Room Room { get; set; }
 
     public string RoomItemData { get; set; }

src/Model/SaveData.cs

@@ -1,8 +1,12 @@
-namespace sodoff.Model;
+using System.Text.Json.Serialization;
+
+namespace sodoff.Model;
 public class SavedData {
+    [JsonIgnore]
     public int VikingId { get; set; }
     public uint SaveId { get; set; }
     public string? SerializedData {  get; set; }
 
+    [JsonIgnore]
     public virtual Viking Viking { get; set; } = null!;
 }

src/Model/SceneData.cs

@@ -1,14 +1,18 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model
 {
     public class SceneData
     {
         [Key]
+        [JsonIgnore]
         public int Id { get; set; }
         public int VikingId { get; set; }
         public string SceneName { get; set; } = null!;
         public string XmlData {  get; set; } = null!;
+
+        [JsonIgnore]
         public virtual Viking Viking { get; set; } = null!;
     }
 }

src/Model/TaskStatus.cs

@@ -1,11 +1,15 @@
-namespace sodoff.Model {
+using System.Text.Json.Serialization;
+
+namespace sodoff.Model {
     public class TaskStatus {
         public int Id { get; set; }
 
         public int MissionId { get; set; }
 
+        [JsonIgnore]
         public int VikingId { get; set; }
 
+        [JsonIgnore]
         public virtual Viking? Viking { get; set; }
 
         public string? Payload { get; set; }

src/Model/User.cs

@@ -1,6 +1,10 @@
-using System.ComponentModel.DataAnnotations;
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 
 namespace sodoff.Model;
+
+[Index(nameof(Username), IsUnique = true)]
 public class User {
     [Key]
     public Guid Id { get; set; }
@@ -14,6 +18,7 @@ public class User {
     [Required]
     public string Password { get; set; } = null!;
 
+    [JsonIgnore]
     public virtual ICollection<Session> Sessions { get; set; } = null!;
     public virtual ICollection<Viking> Vikings { get; set; } = null!;
     public virtual ICollection<PairData> PairData { get; set; } = null!;

src/Model/UserBadgeCompleteData.cs

@@ -1,11 +1,16 @@
-namespace sodoff.Model
+using System.Text.Json.Serialization;
+
+namespace sodoff.Model
 {
     public class UserBadgeCompleteData
     {
+        [JsonIgnore]
         public int Id { get; set; }
+        [JsonIgnore]
         public int VikingId { get; set; }
         public int BadgeId { get; set; }
 
+        [JsonIgnore]
         public virtual Viking? Viking { get; set; }
     }
 }

src/Model/UserMissionData.cs

@@ -1,4 +1,5 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 using Microsoft.EntityFrameworkCore;
 
 namespace sodoff.Model
@@ -6,6 +7,7 @@ namespace sodoff.Model
     [PrimaryKey(nameof(VikingId), nameof(WorldId), nameof(MissionId))]
     public class UserMissionData
     {
+        [JsonIgnore]
         public int VikingId { get; set; }
         public int WorldId { get; set; }
         public int MissionId { get; set; }
@@ -13,6 +15,7 @@ namespace sodoff.Model
         public int TaskId { get; set; }
         public bool IsCompleted { get; set; } = false;
 
+        [JsonIgnore]
         public virtual Viking? Viking { get; set; }
     }
 }

src/Model/Viking.cs

@@ -1,12 +1,14 @@
 using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
 using sodoff.Schema;
 
 namespace sodoff.Model;
 
-[Index(nameof(Uid))]
+[Index(nameof(Uid), IsUnique = true)]
 public class Viking {
     [Key]
+    [JsonIgnore]
     public int Id { get; set; }
 
     public Guid Uid { get; set; }
@@ -15,13 +17,17 @@ public class Viking {
     public string Name { get; set; } = null!;
 
     [Required]
+    [JsonIgnore]
     public Guid UserId { get; set; }
 
     public string? AvatarSerialized { get; set; }
 
+    [JsonIgnore]
     public int? SelectedDragonId { get; set; }
 
+    [JsonIgnore]
     public virtual ICollection<Session> Sessions { get; set; } = null!;
+    [JsonIgnore]
     public virtual User User { get; set; } = null!;
     public virtual ICollection<Dragon> Dragons { get; set; } = null!;
     public virtual ICollection<Image> Images { get; set; } = null!;
@@ -37,8 +43,10 @@ public class Viking {
     public virtual ICollection<ProfileAnswer> ProfileAnswers { get; set; } = null!;
     public virtual ICollection<SavedData> SavedData { get; set; } = null!;
     public virtual ICollection<Party> Parties { get; set; } = null!;
+    [JsonIgnore]
     public virtual ICollection<MMORole> MMORoles { get; set; } = null!;
     public virtual Neighborhood? Neighborhood { get; set; } = null!;
+    [JsonIgnore]
     public virtual ICollection<Group> Groups { get; set; } = null!;
     public virtual ICollection<Rating> Ratings { get; set; } = null!;
     public virtual Dragon? SelectedDragon { get; set; }

src/Resources/html/export.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <title>Export SoDOff account</title>
+  </head>
+  <body>
+    <form action="/Export" method="post">
+      <label for="username">Username:</label><br />
+      <input type="text" id="username" name="username" /><br />
+      <label for="password">Password:</label><br />
+      <input type="password" id="password" name="password" /><br /><br />
+      <input type="submit" value="Submit" />
+    </form> 
+  </body>
+</html>

src/Resources/html/import.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <title>Import SoDOff account</title>
+  </head>
+  <body>
+    <form action="/Import" method="post" enctype="multipart/form-data">
+      <label for="username">Username:</label><br />
+      <input type="text" id="username" name="username" /><br />
+      <label for="password">Password:</label><br />
+      <input type="password" id="password" name="password" /><br /><br />
+
+      <label for="vikingName">Viking name (in imported file):</label><br />
+      <input type="text" id="vikingName" name="vikingName" /><br />
+      <label for="newVikingName">New viking name:</label><br />
+      <input type="text" id="newVikingName" name="newVikingName" /><br />
+      <label for="dataFile">Account data:</label><br />
+      <input type="file" id="dataFile" name="dataFile" /><br /><br />
+
+      <input type="submit" value="Submit" />
+    </form> 
+  </body>
+</html>

src/Schema/NestData.cs

@@ -0,0 +1,13 @@
+using System.Xml.Serialization;
+
+namespace sodoff.Schema;
+
+[XmlRoot(ElementName = "NestData", Namespace = "")]
+[Serializable]
+public class NestData {
+	[XmlElement(ElementName = "PetID")]
+	public int PetID;
+
+	[XmlElement(ElementName = "ID")]
+	public int ID;
+}

src/Schema/StableData.cs

@@ -0,0 +1,22 @@
+using System.Xml.Serialization;
+
+namespace sodoff.Schema;
+
+[XmlRoot(ElementName = "StableData", Namespace = "")]
+[Serializable]
+public class StableData {
+	[XmlElement(ElementName = "Name")]
+	public string Name;
+
+	[XmlElement(ElementName = "ID")]
+	public int ID;
+
+	[XmlElement(ElementName = "ItemID")]
+	public int ItemID;
+
+	[XmlElement(ElementName = "InventoryID")]
+	public int InventoryID;
+
+	[XmlElement(ElementName = "Nests")]
+	public List<NestData> NestList;
+}

src/Schema/UserRankData.cs

@@ -0,0 +1,23 @@
+using System.Diagnostics;
+using System.Xml.Serialization;
+
+namespace sodoff.Schema;
+
+[XmlRoot(ElementName = "UserRankData", Namespace = "")]
+[Serializable]
+public class UserRankData {
+    [XmlElement(ElementName = "UserID")]
+    public Guid UserID;
+
+    [XmlElement(ElementName = "Points")]
+    public int Points;
+
+    [XmlElement(ElementName = "CurrentRank")]
+    public UserRank CurrentRank;
+
+    [XmlElement(ElementName = "MemberRank")]
+    public UserRank MemberRank;
+
+    [XmlElement(ElementName = "NextRank")]
+    public UserRank NextRank;
+}

src/sodoff.csproj

@@ -155,5 +155,11 @@
     <EmbeddedResource Include="Resources\missions\badge_wojs_al.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </EmbeddedResource>
+    <EmbeddedResource Include="Resources\html\export.xml">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Resources\html\import.xml">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </EmbeddedResource>
   </ItemGroup>
 </Project>