/// <summary>
/// Saves the M main object into the database.
/// </summary>
/// <param name="configuration">The configuration.</param>
/// <param name="httpContext">The HTTP context.</param>
/// <param name="main">The main.</param>
public static void SaveDatabase(IConfiguration configuration, HttpContext httpContext, object main)
{
var storageID = GetStorageID(main.GetType().Name);
Guid session = Guid.NewGuid(); // cannot exist in the database
var newCookie = new NameValueCollection();
var cookie = httpContext.Request.Cookies[storageID].FromCookieString();
if (cookie != null)
{
Guid.TryParse(cookie["session"], out session);
}
Func <byte[], byte[]> filter = null;
if (StorageImplementation.GetEncryptDatabaseStorage(configuration))
{
var key = (cookie["key"] != null) ? Convert.FromBase64String(cookie["key"]) : null;
var secret = StorageImplementation.GetSecret(key);
filter = x => Crypt.Encrypt(secret, x);
newCookie["key"] = Convert.ToBase64String(secret.Key);
}
using (var db = new ASP_DBEntities())
{
var savedSession = db.SaveMain(main.GetType(), StorageImplementation.Bytes(main, filter), session);
newCookie["session"] = savedSession.ToString();
}
var days = configuration.GetValue <int>("DatabaseStorageExpires");
var options = new CookieOptions()
{
Expires = DateTime.Now.AddDays(days),
HttpOnly = true,
SameSite = SameSiteMode.Strict
};
httpContext.Response.Cookies.Append(storageID, newCookie.ToCookieString(), options);
}
/// <summary>
/// Recreates the Main object from the ViewState and copies members
/// used on the client side with the overridden ExposeMembers().
/// Returns a new instance if no ViewState is given
/// </summary>
/// <param name="filter">The filter.</param>
public virtual void DeserializeMain(Func <byte[], byte[]> filter = null)
{
this.Main = StorageImplementation.LoadFromViewstate(() => new TModel(), this.ViewState, filter);
this.IsNew = false;
}
/// <summary>
/// Internally serializes the Main object into the ViewState.
/// </summary>
/// <param name="filter">The filter.</param>
public void SerializeMain(Func <byte[], byte[]> filter = null)
{
this.ViewState = StorageImplementation.ViewState(this.Main, filter);
}
/// <summary>
/// Saves the M main object into the session.
/// </summary>
/// <param name="configuration">The configuration.</param>
/// <param name="httpContext">The HTTP context.</param>
/// <param name="main">The main.</param>
public static void SaveSession(IConfiguration configuration, HttpContext httpContext, object main)
{
var storageID = GetStorageID(main.GetType().Name);
httpContext.Session.Set(storageID, StorageImplementation.Bytes(main));
}