public List<Peer> ResolveByPeerName(string peerName)
{
try
{
if (string.IsNullOrEmpty(peerName))
throw new ArgumentException("Cannot have a null or empty peer name.");
PeerNameResolver resolver = new PeerNameResolver();
PeerNameRecordCollection resolvedName = resolver.Resolve(new PeerName(peerName, PeerNameType.Unsecured),
Cloud.AllLinkLocal);
List<Peer> foundPeers = new List<Peer>();
foreach (PeerNameRecord foundItem in resolvedName)
{
Peer peer = new Peer(){
PeerName = foundItem.PeerName.Classifier,
PeerHostName = foundItem.PeerName.PeerHostName,
Comments = foundItem.Comment
};
foundPeers.Add(peer);
}
return foundPeers;
}
catch (PeerToPeerException px)
{
throw new Exception(px.InnerException.Message);
}
}
public void AddPeer(Peer peer)
{
string temp = String.Format("INSERT INTO peers (peerId, peerName, peerHostName, comments) values ('{0}', '{1}', '{2}', '{3}')",
peer.PeerID, peer.PeerName, peer.PeerHostName, peer.Comments);
dbConnection.Update(temp);
// log the event
logging.LogI(String.Format("Info: *** A new peer '{0}' is connected ***" +
Environment.NewLine, peer.PeerID.ToString()));
logging.AddPeer(peer.PeerID.ToString());
}
public void DoHost(Peer peer)
{
PeerServiceHost.peer = peer;
string address = string.Empty;
address = string.Format("net.tcp://{0}:{1}/PeerToPeerClient.Services/PeerService",
peer.PeerHostName, Config.LocalPort);
Uri uri = new Uri(address);
NetTcpBinding tcpBinding = new NetTcpBinding(SecurityMode.None);
ServiceHost serviceHost = new ServiceHost(typeof(PeerService), uri);
serviceHost.AddServiceEndpoint(typeof(IPeerService), tcpBinding, "");
serviceHost.Open();
// add this peer to the server
SuperPeerServiceClient ssc = new SuperPeerServiceClient();
ssc.AddPeer(peer);
// add the files that this peer wants to share to the server
DirectoryInfo dirInfo = new DirectoryInfo(Config.SharedFolder);
if (dirInfo.Exists)
{
FileInfo[] filesInfo = dirInfo.GetFiles();
List<ClassLibrary.Entites.File> files = new List<ClassLibrary.Entites.File>();
foreach (var fileInfo in filesInfo)
{
ClassLibrary.Entites.File file = new ClassLibrary.Entites.File();
file.FileName = fileInfo.Name;
file.FileType = fileInfo.Extension;
file.FileSize = fileInfo.Length;
SHA512 sha512 = SHA512.Create();
using (var stream = fileInfo.Open(FileMode.Open, FileAccess.Read))
{
file.FileHash = BitConverter.ToString(sha512.ComputeHash(stream), 0);
}
file.PeerName = peer.PeerName;
file.PeerID = peer.PeerID;
files.Add(file);
}
if (files.Count != 0)
ssc.AddFiles(files);
}
else
dirInfo.Create();
}
public void RemovePeer(Peer peer)
{
string temp = String.Format("DELETE FROM peers WHERE peerId='{0}'", peer.PeerID);
dbConnection.Update(temp);
// log the event
logging.LogI(String.Format("Info: *** A peer '{0}' is disconnected ***" +
Environment.NewLine, peer.PeerID));
logging.RemovePeer(peer.PeerID.ToString());
temp = String.Format("DELETE FROM files WHERE peerId='{0}'", peer.PeerID.ToString());
int affectedRows = dbConnection.Update(temp);
// log the event
logging.LogI(String.Format("Info: *** {0} files are removed due to peer '{1}' disconnection ***" +
Environment.NewLine, affectedRows, peer.PeerID));
}
public Peer Register()
{
string timeStamp = string.Format("PeerToPeerClient Created at : {0}", DateTime.Now.ToShortTimeString());
registration.Comment = timeStamp;
try
{
registration.Start();
Peer peer = new Peer()
{
PeerID = Guid.NewGuid(),
PeerName = registration.PeerName.Classifier,
PeerHostName = registration.PeerName.PeerHostName,
Comments = registration.Comment
};
return peer;
}
catch (PeerToPeerException PEX)
{
throw new Exception(PEX.InnerException.Message);
}
}
public void Leave(Peer peer)
{
registration.Stop();
SuperPeerServiceClient ssc = new SuperPeerServiceClient();
ssc.RemovePeer(peer);
}
