public IActionResult Index(Verify v)
{
string sessionId = HttpContext.Request.Cookies["sessionId"];
if (v.VerifySession(sessionId, _db))
{
TempData["Alert"] = "primary|Already logged in!";
return(Redirect("/Gallery/Index"));
}
else
{
string cartCookie = HttpContext.Request.Cookies["guestCart"];
if (cartCookie != null)
{
GuestCart guestCart = JsonSerializer.Deserialize <GuestCart>(cartCookie);
ViewData["CartQuantity"] = guestCart.Count();
}
else
{
ViewData["CartQuantity"] = 0;
}
}
return(View());
}
public IActionResult Authenticate(Hasher hasher, string username, string password, string returnUrl)
{
User user = _db.Users.FirstOrDefault(x => x.Username == username);
if (user == null || hasher.GenerateHashString(password, user.Salt) != user.Password)
{
TempData["Alert"] = "danger|Username or password incorrect, please try again.";
return(Redirect("Index"));
}
else
{
// Create and store session
string guid = null;
Session session = _db.Sessions.FirstOrDefault(session => session.UserId == user.Id);
// Gives user the same session back if a session is already detected but updates timestamp
if (session == null)
{
guid = Guid.NewGuid().ToString();
_db.Sessions.Add(new Session
{
Id = guid,
UserId = user.Id,
TimeStamp = DateTime.Now
});
}
else
{
guid = session.Id;
session.TimeStamp = DateTime.Now;
}
_db.SaveChanges();
Response.Cookies.Append("sessionId", guid, new CookieOptions
{
HttpOnly = true,
SameSite = SameSiteMode.Lax
});
TempData["Alert"] = "primary|Successfully logged in!";
foreach (var cart in _db.Carts.Where(cart => cart.UserId == user.Id))
{
_db.Carts.Remove(cart);
}
string cartCookie = HttpContext.Request.Cookies["guestCart"];
if (cartCookie != null)
{
// Overwrites current cart in account with guestCart if guestCart exists as per CW's specifications
GuestCart guestCart = JsonSerializer.Deserialize <GuestCart>(cartCookie);
foreach (var product in guestCart.Products)
{
_db.Carts.Add(new Cart
{
ProductId = product.ProductId,
UserId = user.Id,
Quantity = product.Quantity
});
}
HttpContext.Response.Cookies.Delete("guestCart");
TempData["Alert"] += $" {guestCart.Count()} item(s) from your previous cart has overwritten your account cart.";
}
_db.SaveChanges();
}
// TempData was not expiring fast enough in some use cases, this ensures removal after single usage
if (TempData["ReturnUrl"] != null)
{
TempData.Remove("ReturnUrl");
}
if (!returnUrl.IsNullOrEmpty())
{
return(Redirect(returnUrl));
}
return(Redirect("/Gallery/Index"));
}
public IActionResult AddCart(int productId)
{
string sessionId = HttpContext.Request.Cookies["sessionId"];
if (_v.VerifySession(sessionId, _db))
{
int userid = _db.Sessions.FirstOrDefault(x => x.Id == sessionId).UserId;
Cart cart = _db.Carts.FirstOrDefault(x => x.UserId == userid && x.ProductId == productId);
// Special case handling to prevent integer overflow
if (cart == null)
{
_db.Add(new Cart()
{
Quantity = 1,
UserId = userid,
ProductId = productId
});
}
else if (cart.Quantity < 100)
{
cart.Quantity += 1;
}
else
{
TempData["Alert"] = "warning|Cannot have more than 100 of the same product at once in cart, please contact Team 10 for bulk purchases.";
return(Json(new
{
success = false,
}));
}
_db.SaveChanges();
return(Json(new
{
success = true
}));
}
else
{
string cartCookie = HttpContext.Request.Cookies["guestCart"];
GuestCart guestCart;
if (cartCookie != null)
{
guestCart = JsonSerializer.Deserialize <GuestCart>(cartCookie);
}
else
{
guestCart = new GuestCart();
guestCart.Add(productId, _db.Products.FirstOrDefault(p => p.Id == productId));
}
Product product = _db.Products.FirstOrDefault(p => p.Id == productId);
Cart inCart = guestCart.Find(productId);
// Special case handling to prevent integer overflow
if (inCart == null || inCart.Quantity < 100)
{
guestCart.Add(productId, product);
}
else
{
TempData["Alert"] = "warning|Cannot have more than 100 of the same product at once in cart, please contact Team 10 for bulk purchases.";
return(Json(new
{
success = false,
}));
}
HttpContext.Response.Cookies.Append("guestCart", JsonSerializer.Serialize <GuestCart>(guestCart), new CookieOptions
{
HttpOnly = true,
SameSite = SameSiteMode.Lax
});
return(Json(new
{
success = true
}));
}
}
