public ActionResult Upload()
{
if (Request.Files.Count > 0)
{
try
{
var file = Request.Files[0];
// Some basic checks...
if (file != null && !FileValidator.ValidSize(file.ContentLength))
{
return(Json("File size too big. Maximum File Size: 500KB"));
}
else if (FileValidator.ValidType(file.ContentType))
{
return(Json("This file extension is not allowed!"));
}
else
{
// Save file to Disk
var fileName = DateTime.Now.ToString("yyyymmddMMss") + "_" + Path.GetFileName(file.FileName);
var filePath = Path.Combine(Server.MapPath("~/Content/uploads/"), fileName);
file.SaveAs(filePath);
string htmlImage = string.Format(
"<a href=\"/Content/uploads/{0}\" target=\"_blank\">" +
"<img src=\"/Content/uploads/{0}\" class=\"post-image\">" +
"</a>", fileName);
using (var db = new ApplicationDbContext())
{
// Get sender & chat room
var senderViewModel = ChatHub._Connections.Where(u => u.Username == User.Identity.Name).FirstOrDefault();
var sender = db.Users.Where(u => u.UserName == senderViewModel.Username).FirstOrDefault();
var room = db.Rooms.Where(r => r.Name == senderViewModel.CurrentRoom).FirstOrDefault();
// Build message
Message msg = new Message()
{
Content = Regex.Replace(htmlImage, @"(?i)<(?!img|a|/a|/img).*?>", String.Empty),
Timestamp = DateTime.Now.Ticks.ToString(),
FromUser = sender,
ToRoom = room
};
db.Messages.Add(msg);
db.SaveChanges();
// Send image-message to group
var messageViewModel = Mapper.Map <Message, MessageViewModel>(msg);
var hub = GlobalHost.ConnectionManager.GetHubContext <ChatHub>();
hub.Clients.Group(senderViewModel.CurrentRoom).newMessage(messageViewModel);
}
return(Json("Success"));
}
}
catch (Exception ex)
{ return(Json("Error while uploading" + ex.Message)); }
}
return(Json("No files selected"));
} // Upload