public List<Shared.Dto.Message> FetchMessages(string sessionKey)
{
var dbContext = DbContextFactory.GetContext();
var sessionService = new SessionService();
var user = sessionService.GetUser(sessionKey);
if (user == null) return null;
var messages = dbContext.Messages
.Where(m => m.RecipientId == user.Id);
var dtoMessages = messages.Select(e => new Shared.Dto.Message
{
Body = e.Content,
ReceiverId = e.RecipientId,
SenderId = e.SenderId,
DateSent = e.SentTime,
SymmetricKey = e.SessionKey,
Iv = e.InitVector,
DigitalSignature = e.Signature
}).ToList();
messages.DeleteAll();
dbContext.SaveChanges();
return dtoMessages;
}
public bool SendContact(string sessionKey, Shared.Dto.Contact contact)
{
var dbContext = DbContextFactory.GetContext();
var sessionService = new SessionService();
var user = sessionService.GetUser(sessionKey);
if (user == null) return false;
User recipient;
try
{
recipient =
dbContext.Users.Single(u => u.Id == contact.ReceiverId);
}
catch (Exception)
{
return false;
}
var newContact = new Contact
{
PublicKey = contact.PublicKey,
Name = contact.Name,
Sender = user,
Recipient = recipient
};
dbContext.Add(newContact);
dbContext.SaveChanges();
var userService = new PushService();
userService.Push(recipient, "Recieved new contact!");
return true;
}
public IHttpActionResult GetUserId(string sessionKey)
{
var sessionService = new SessionService();
var user = sessionService.GetUser(sessionKey);
if (user != null) return Ok(user.Id);
return Unauthorized();
}
public bool SetPushAllowed(string sessionKey, bool isPushAllowed)
{
var dbContext = DbContextFactory.GetContext();
var sessionService = new SessionService();
var user = sessionService.GetUser(sessionKey);
if (user == null) return false;
user.AllowPush = isPushAllowed;
dbContext.SaveChanges();
return true;
}
public bool RegisterPushToken(string sessionKey, string pushToken)
{
var dbContext = DbContextFactory.GetContext();
var sessionService = new SessionService();
var user = sessionService.GetUser(sessionKey);
if (user == null) return false;
user.PushToken = pushToken;
dbContext.SaveChanges();
return true;
}
public string Login(string deviceId, string password)
{
var dbContext = DbContextFactory.GetContext();
var sessionService = new SessionService();
var user = dbContext.Users.SingleOrDefault(u => u.DeviceId == deviceId);
if (user != null
&& CryptoService.ValidatePassword(user.PasswordHash, password))
{
return sessionService.CreateSession(user);
}
else
{
return null;
}
}
public string Login(string deviceId, string password)
{
var dbContext = DbContextFactory.GetContext();
var sessionService = new SessionService();
var user = dbContext.Users.SingleOrDefault(u => u.DeviceId == deviceId);
if (user != null &&
CryptoService.ValidatePassword(user.PasswordHash, password))
{
return(sessionService.CreateSession(user));
}
else
{
return(null);
}
}
public bool SendMessage(string sessionKey, Shared.Dto.Message msg)
{
var dbContext = DbContextFactory.GetContext();
var sessionService = new SessionService();
var user = sessionService.GetUser(sessionKey);
if (user == null)
{
return(false);
}
User recipient;
try
{
recipient =
dbContext.Users.Single(u => u.Id == msg.ReceiverId);
}
catch (Exception)
{
return(false);
}
var newMsg = new Message
{
Content = msg.Body,
Sender = user,
Recipient = recipient,
SentTime = msg.DateSent,
Signature = msg.DigitalSignature,
SessionKey = msg.SymmetricKey,
InitVector = msg.Iv
};
var userService = new PushService();
userService.Push(recipient, "You have new message");
dbContext.Add(newMsg);
dbContext.SaveChanges();
return(true);
}
public bool SendMessage(string sessionKey, Shared.Dto.Message msg)
{
var dbContext = DbContextFactory.GetContext();
var sessionService = new SessionService();
var user = sessionService.GetUser(sessionKey);
if (user == null)
{
return false;
}
User recipient;
try
{
recipient =
dbContext.Users.Single(u => u.Id == msg.ReceiverId);
}
catch (Exception)
{
return false;
}
var newMsg = new Message
{
Content = msg.Body,
Sender = user,
Recipient = recipient,
SentTime = msg.DateSent,
Signature = msg.DigitalSignature,
SessionKey = msg.SymmetricKey,
InitVector = msg.Iv
};
var userService = new PushService();
userService.Push(recipient, "You have new message");
dbContext.Add(newMsg);
dbContext.SaveChanges();
return true;
}
public bool SendContact(string sessionKey, Shared.Dto.Contact contact)
{
var dbContext = DbContextFactory.GetContext();
var sessionService = new SessionService();
var user = sessionService.GetUser(sessionKey);
if (user == null)
{
return(false);
}
User recipient;
try
{
recipient =
dbContext.Users.Single(u => u.Id == contact.ReceiverId);
}
catch (Exception)
{
return(false);
}
var newContact = new Contact
{
PublicKey = contact.PublicKey,
Name = contact.Name,
Sender = user,
Recipient = recipient
};
dbContext.Add(newContact);
dbContext.SaveChanges();
var userService = new PushService();
userService.Push(recipient, "Recieved new contact!");
return(true);
}
public List<Shared.Dto.Contact> FetchContacts(string sessionKey)
{
var dbContext = DbContextFactory.GetContext();
var sessionService = new SessionService();
var user = sessionService.GetUser(sessionKey);
if (user == null) return null;
var contacts = dbContext.Contacts
.Where(m => m.Recipient.Id == user.Id);
var dtoContacts = contacts
.Select(e => new Shared.Dto.Contact
{
SenderId = e.SenderId,
Name = e.Name,
PublicKey = e.PublicKey
}).ToList();
contacts.DeleteAll();
dbContext.SaveChanges();
return dtoContacts;
}
public bool IsPushAllowed(string sessionKey)
{
var sessionService = new SessionService();
var user = sessionService.GetUser(sessionKey);
return user.AllowPush;
}
