public HistoryItem(int transferId, int userId)
{
SafeSendEntities db = new SafeSendEntities();
var item = from f in db.FileTransfers
join u1 in db.Users on f.SenderId equals u1.UserId
join u2 in db.Users on f.ReceiverId equals u2.UserId
where f.TransferId == transferId
select new {
f.TransferId,
f.TransferDate,
SenderName = u1.Name + " " + u1.Surname,
ReceiverName = u2.Name + " " + u2.Surname,
f.SenderId,
f.ReceiverId,
f.Status
};
this.TransferId = item.First().TransferId;
this.TransferDate = item.First().TransferDate.Value;
this.SenderName = item.First().SenderName;
this.ReceiverName = item.First().ReceiverName;
this.Status = item.First().Status.Value;
if(userId == item.First().SenderId)
{
this.TransferDirection = 1;
}
else
{
this.TransferDirection = 2;
}
}
public Boolean CheckUser()
{
SafeSendEntities db = new SafeSendEntities();
if (db.Users.Where(x => x.Phone == this.Phone || x.Email == this.Email).Count() > 0)
{
return false;
}
return true;
}
public int Authenticate()
{
SafeSendEntities db = new SafeSendEntities();
if (db.Users.Where(x => x.Email == this.Email && x.Password == this.Password).Count() > 0)
{
return db.Users.Where(x => x.Email == this.Email && x.Password == this.Password).First().UserId;
}
return -1;
}
public static Boolean UpdateTransferStatus(int transferId)
{
SafeSendEntities db = new SafeSendEntities();
FileTransfers transfer = db.FileTransfers.Where(x => x.TransferId == transferId).FirstOrDefault();
if(transfer != null)
{
transfer.Status = 2;
db.FileTransfers.Attach(transfer);
db.Entry(transfer).State = System.Data.Entity.EntityState.Modified;
db.SaveChanges();
return true;
}
else
{
return false;
}
}
public static Package DownloadFile(int transferId)
{
SafeSendEntities db = new SafeSendEntities();
FileTransfers transfer = db.FileTransfers.Where(x => x.TransferId == transferId).FirstOrDefault();
if(transfer != null)
{
Package package = new Package();
package.EncryptionLevel = transfer.EncryptionLevel.Value;
package.TransferId = transfer.TransferId;
package.FileContent = transfer.TransferredData;
package.FileData = transfer.FileData;
return package;
}
else
{
return null;
}
}
public static int TransferFile(int senderId, string phone, string data, int level, byte[] fileData)
{
SafeSendEntities db = new SafeSendEntities();
Users user = db.Users.Where(x => x.Phone == phone).FirstOrDefault();
if(user != null)
{
FileTransfers transfer = new FileTransfers();
transfer.SenderId = senderId;
transfer.ReceiverId = user.UserId;
transfer.Status = 1;
transfer.TransferDate = DateTime.Now;
transfer.EncryptionLevel = level;
transfer.TransferredData = data;
transfer.FileData = fileData;
db.FileTransfers.Add(transfer);
db.SaveChanges();
PushNotification(user.DeviceToken);
return transfer.TransferId;
}
else
{
return -1;
}
}
public string GetContacts(string phoneListStr)
{
string returnStr = "";
SafeSendEntities db = new SafeSendEntities();
string[] tmp = phoneListStr.Split(';');
List<ContactItem> contactList = new List<ContactItem>();
for (int i = 0; i < tmp.Length; i++)
{
if(!string.IsNullOrEmpty(tmp[i]))
{
string phone = tmp[i];
if (db.Users.Where(x => x.Phone == phone && x.UserId != UserId).Count() > 0)
{
returnStr = returnStr + phone + ";";
}
}
}
return returnStr;
}
public Boolean Update()
{
SafeSendEntities db = new SafeSendEntities();
Users _user = db.Users.Where(x => x.UserId == this.UserId).First();
if (_user != null)
{
_user.Name = this.Name;
_user.Surname = this.Surname;
db.Users.Attach(_user);
db.Entry(_user).State = System.Data.Entity.EntityState.Modified;
db.SaveChanges();
return true;
}
return false;
}
public Boolean Insert()
{
SafeSendEntities db = new SafeSendEntities();
Users _user = new Users();
_user.Name = this.Name;
_user.Surname = this.Surname;
_user.Email = this.Email;
_user.Password = this.Password;
_user.Phone = this.Phone;
_user.UDID = this.UDID;
_user.DeviceToken = this.DeviceToken;
db.Users.Add(_user);
if (db.SaveChanges() > 0)
{
return true;
}
return false;
}
public void GetUserInfo()
{
SafeSendEntities db = new SafeSendEntities();
Users _user = db.Users.Where(x => x.UserId == this.UserId).FirstOrDefault();
if(_user != null)
{
this.Name = _user.Name;
this.Surname = _user.Surname;
this.Email = _user.Email;
this.Password = _user.Password;
this.Phone = _user.Phone;
this.UDID = _user.UDID;
this.DeviceToken = _user.DeviceToken;
}
}
public List<NotificationItem> GetNotifications()
{
SafeSendEntities db = new SafeSendEntities();
List<NotificationItem> notifications = new List<NotificationItem>();
var list = from f in db.FileTransfers
join u in db.Users on f.SenderId equals u.UserId
where f.ReceiverId == this.UserId && f.Status == 1
select new { f.TransferId, u.Name, u.Surname };
foreach (var item in list)
{
NotificationItem notificationItem = new NotificationItem();
notificationItem.TransferId = item.TransferId;
notificationItem.Explanation = "You have an incoming file from " + item.Name + " " + item.Surname;
notifications.Add(notificationItem);
}
return notifications;
}
public List<HistoryItem> GetHistory()
{
SafeSendEntities db = new SafeSendEntities();
List<HistoryItem> history = new List<HistoryItem>();
var list = db.FileTransfers.Where(x => x.SenderId == this.UserId || x.ReceiverId == this.UserId).ToList().OrderByDescending(x=> x.TransferDate);
foreach (var item in list)
{
HistoryItem historyItem = new HistoryItem(item.TransferId, this.UserId);
history.Add(historyItem);
}
return history;
}