public bool AnswerContactRequest(ContactRequest req, bool ack, out string message)
{
try
{
// Prepare the packet to send
Packets.ContactReqPacket packet = new Packets.ContactReqPacket(
(ack) ? Packets.PacketTypes.AcceptNewContact : Packets.PacketTypes.RegNewContact,
alea,
req.From.Username,
profile.Username
);
// send the package
udp.SendMessage(packet.Pack());
// Recieve packet
byte[] data = udp.RecieveMessage();
// Unpack the data and check the type
Packets.Packet p = Packets.Packet.Unpack <Packets.Packet>(data);
switch ((Packets.PacketTypes)p.Type)
{
case Packets.PacketTypes.ContactAck:
if (ack)
{
// Todo: Get Contacts info
DebugInfo("Answer Contact Request: Accepted " + req.From.Username + " correctly.");
}
else
{
DebugInfo("Answer Contact Request: Refused " + req.From.Username + " correctly.");
}
// Update the request list
GetContactRequestList(out message);
message = "Answered correctly";
return(true);
case Packets.PacketTypes.Error:
message = "Error: " + Packets.Packet.Unpack <Packets.AckErrorPacket>(data).Message;
DebugInfo("Answer Contact Request: " + message);
break;
default:
DebugInfo("Answer Contact Request: Unexpected type.");
message = "Error, unexpected type.";
break;
}
return(false);
}
catch (System.Net.Sockets.SocketException)
{
DebugInfo("Server is offline.");
message = "Server is offline.";
return(false);
}
}
public static bool AckOrRegContactReq(Packets.ContactReqPacket packet,
ClientStatus current,
bool ack,
out string message)
{
try
{
if (CheckBasics(current, ClientStatus.Status.Disconnected, packet.Alea, out message))
{
using (var db = new Models.ServerDatabase())
{
// Check if requests exists on any of both sides
if (!db.ContactRequests.Any(c => (c.From.Username == packet.From && c.To.Username == packet.To)))
{
message = "Contact request doesn't exists.";
return(false);
}
// Remove the contact request
db.ContactRequests.DeleteOnSubmit(
db.ContactRequests
.Single(r => r.From.Username == packet.From && r.To.Username == packet.To)
);
if (ack)
{
// Create new record to Contact Table
db.Contacts.InsertOnSubmit(new Models.Contact()
{
Client1 = db.Clients.Single(c => c.Username == packet.From),
Client2 = db.Clients.Single(c => c.Username == packet.To)
});
message = "Contact added correctly.";
}
else
{
message = "Contact request refused correctly.";
}
db.SubmitChanges();
}
}
else
{
return(false);
}
return(true);
}
catch (SqlException)
{
message = "New contact request error: Database error";
return(false);
}
}
public bool SendContactRequest(string to, out string message)
{
try
{
// Prepare the packet to send
Packets.ContactReqPacket packet = new Packets.ContactReqPacket(
Packets.PacketTypes.NewContactReq,
alea,
profile.Username,
to
);
// send the package
udp.SendMessage(packet.Pack());
// Recieve packet
byte[] data = udp.RecieveMessage();
// Unpack the data and check the type
Packets.Packet p = Packets.Packet.Unpack <Packets.Packet>(data);
switch ((Packets.PacketTypes)p.Type)
{
case Packets.PacketTypes.ContactAck:
DebugInfo("Send Contact request: Sent succesful to " + to);
// Update the request list
GetContactRequestList(out message);
message = "Request sent correctly.";
return(true);
case Packets.PacketTypes.Error:
message = "Error: " + Packets.Packet.Unpack <Packets.AckErrorPacket>(data).Message;
DebugInfo("Send Contact request: " + message);
break;
default:
DebugInfo("Send Contact request: Unexpected type.");
message = "Error, unexpected type.";
break;
}
return(false);
}
catch (System.Net.Sockets.SocketException)
{
DebugInfo("Server is offline.");
message = "Server is offline.";
return(false);
}
}
public static bool NewContactRequest(Packets.ContactReqPacket packet,
ClientStatus current,
out string message)
{
try
{
if (packet.To == packet.From)
{
message = "You can't add yourself as a friend....";
return(false);
}
if (CheckBasics(current, ClientStatus.Status.Disconnected, packet.Alea, out message))
{
using (var db = new Models.ServerDatabase())
{
// Check if destination exists
if (!db.Clients.Any(c => c.Username == packet.To))
{
message = "Destination doesn't exist.";
return(false);
}
// Check if contact exists
if (db.Contacts.Any(c => (c.Client1.Username == packet.To && c.Client2.Username == packet.From) ||
(c.Client1.Username == packet.From && c.Client2.Username == packet.To)))
{
message = "Contact already exists.";
return(false);
}
// Check if requests exists on any of both sides
if (db.ContactRequests.Any(c => (c.From.Username == packet.To && c.To.Username == packet.From) ||
(c.From.Username == packet.From && c.To.Username == packet.To)))
{
message = "Contact request already exists.";
return(false);
}
// Create new record to ContactRequests Table
db.ContactRequests.InsertOnSubmit(new Models.ContactRequest()
{
From = db.Clients.Single(c => c.Username == packet.From),
To = db.Clients.Single(c => c.Username == packet.To)
});
db.SubmitChanges();
}
}
else
{
return(false);
}
message = "Cool!";
return(true);
}
catch (SqlException)
{
message = "New contact request error: Database error";
return(false);
}
}
