/// <summary>
/// Saves a key/value pair to a given map element. Will reject a pair containing a player's deviceId in the database.
/// </summary>
/// <param name="elementId">the Guid exposed to clients to identify the map element.</param>
/// <param name="key">The key to save to the database for the map element.</param>
/// <param name="value">The value to save with the key.</param>
/// <param name="expiration">If not null, expire the data in this many seconds from now.</param>
/// <returns>true if data was saved, false if data was not.</returns>
public static bool SetPlaceData(Guid elementId, string key, string value, double?expiration = null)
{
var db = new PraxisContext();
if (db.PlayerData.Any(p => p.DeviceID == key || p.DeviceID == value))
{
return(false);
}
var row = db.PlaceGameData.Include(p => p.Place).FirstOrDefault(p => p.Place.PrivacyId == elementId && p.DataKey == key);
if (row == null)
{
var sourceItem = db.Places.First(p => p.PrivacyId == elementId);
row = new DbTables.PlaceGameData();
row.DataKey = key;
row.Place = sourceItem;
db.PlaceGameData.Add(row);
}
if (expiration.HasValue)
{
row.Expiration = DateTime.Now.AddSeconds(expiration.Value);
}
else
{
row.Expiration = null;
}
row.IvData = null;
row.DataValue = value.ToByteArrayUTF8();
return(db.SaveChanges() == 1);
}
/// <summary>
/// Saves a key/value pair to a given map element with the given password
/// </summary>
/// <param name="elementId">the Guid exposed to clients to identify the map element.</param>
/// <param name="key">The key to save to the database for the map element.</param>
/// <param name="value">The value to save with the key.</param>
/// <param name="password">The password to encrypt the value with.</param>
/// <param name="expiration">If not null, expire this data in this many seconds from now.</param>
/// <returns>true if data was saved, false if data was not.</returns>
public static bool SetSecurePlaceData(Guid elementId, string key, byte[] value, string password, double?expiration = null)
{
byte[] encryptedValue = EncryptValue(value, password, out byte[] IVs);
var db = new PraxisContext();
var row = db.PlaceGameData.Include(p => p.Place).FirstOrDefault(p => p.Place.PrivacyId == elementId && p.DataKey == key);
if (row == null)
{
var sourceItem = db.Places.First(p => p.PrivacyId == elementId);
row = new DbTables.PlaceGameData();
row.DataKey = key;
row.Place = sourceItem;
db.PlaceGameData.Add(row);
}
if (expiration.HasValue)
{
row.Expiration = DateTime.Now.AddSeconds(expiration.Value);
}
else
{
row.Expiration = null;
}
row.IvData = IVs;
row.DataValue = encryptedValue;
return(db.SaveChanges() == 1);
}