public HttpResponseMessage DownloadLevel(Int64?id, Int32?version = -1)
{
try
{
LevelDataDTO level = this.levelsDAL.GetLevel(id ?? -1, version ?? -1);
return(HttpResponseFactory.Response200Plain(level.ToString()));
}
catch (PR2Exception ex)
{
return(HttpResponseFactory.Response200Plain(StatusKeys.ERROR, ex.Message));
}
catch (Exception ex)
{
return(HttpResponseFactory.Response500Plain(ex.Message));
}
}
public void SaveLevel(Int64 userId, String username, LevelDataDTO levelData, String ipAddress)
{
// TODO - Validation of level data.
// TODO - Consider the difference based approach when saving levels.
if (levelData == null)
{
throw new PR2Exception(ErrorMessages.ERR_NO_LEVEL_DATA);
}
else if (String.IsNullOrEmpty(levelData.Title))
{
throw new PR2Exception(ErrorMessages.ERR_NO_LEVEL_TITLE);
}
else if (levelData.GameMode == GameMode.Unknown)
{
throw new PR2Exception(ErrorMessages.ERR_INVALID_GAME_MODE);
}
else if (!String.IsNullOrEmpty(levelData.Items) &&
!Regex.IsMatch(levelData.Items, ValidationConstraints.LEVEL_ITEMS_PATTERN))
{
throw new PR2Exception(ErrorMessages.ERR_INVALID_ITEMS);
}
using (MD5Wrapper md5 = new MD5Wrapper())
{
String hash = md5.GetHashedString(
String.Concat(levelData.Title, username?.ToLower() ?? String.Empty, levelData.Data, Pepper.LEVEL_SAVE));
if (String.CompareOrdinal(hash, levelData.Hash) != 0)
{
throw new PR2Exception(ErrorMessages.ERR_LEVEL_DATA_HASH_MISMATCH);
}
}
DateTime utcDateMinus1min = DateTime.UtcNow.AddMinutes(-1); // To prevent usage of SQL functions.
LevelVersion lastSaved = this.dbContext.LevelVersions
.Where(v => v.Level != null && v.Level.AuthorId == userId && DateTime.Compare(v.SubmittedDate, utcDateMinus1min) > 0)
.OrderByDescending(v => v.SubmittedDate).FirstOrDefault();
if (lastSaved != null)
{
throw new PR2Exception(String.Format(
ErrorMessages.ERR_WAIT_BEFORE_SAVING,
Math.Round(TimeSpan.FromMinutes(1).Subtract(DateTime.UtcNow.Subtract(lastSaved.SubmittedDate.ToUniversalTime())).TotalSeconds)));
}
Level level = this.dbContext.Levels.FirstOrDefault(l => l.AuthorId == userId && l.Title == levelData.Title);
if (level == null)
{
level = new Level
{
AuthorId = userId,
Title = levelData.Title,
IsDeleted = false
};
this.dbContext.Levels.Add(level);
}
level.IsPublished = levelData.Live;
this.dbContext.LevelVersions.Add(new LevelVersion
{
Level = level,
SubmittedDate = DateTime.UtcNow,
SubmittedIP = ipAddress,
Note = levelData.Note,
GameMode = levelData.GameMode,
MinRank = levelData.MinLevel,
CowboyChance = levelData.CowboyChance,
Gravity = levelData.Gravity,
Song = levelData.Song,
MaxTime = levelData.MaxTime,
Items = levelData.Items,
Data = levelData.Data,
PassHash = levelData.PassHash
});
this.dbContext.SaveChanges();
}
