public WhatsUpServiceBindingWrapper(NSMessageHandler nsHandler)
: this()
{
this.nsHandler = nsHandler;
SingleSignOnManager.RenewIfExpired(nsHandler, SSOTicketType.WhatsUp);
}
public ABServiceBindingWrapper(NSMessageHandler nsHandler)
: this()
{
this.nsHandler = nsHandler;
SingleSignOnManager.RenewIfExpired(nsHandler, SSOTicketType.Contact);
}
public DirectoryServiceWrapper(NSMessageHandler nsHandler)
: this()
{
this.nsHandler = nsHandler;
SingleSignOnManager.RenewIfExpired(nsHandler, SSOTicketType.Directory);
}
public DirectoryServiceWrapper(NSMessageHandler nsHandler)
: this()
{
this.nsHandler = nsHandler;
SingleSignOnManager.RenewIfExpired(nsHandler, SSOTicketType.Directory);
}
public SharingServiceBindingWrapper(NSMessageHandler nsHandler)
: this()
{
this.nsHandler = nsHandler;
SingleSignOnManager.RenewIfExpired(nsHandler, SSOTicketType.Contact);
}
private static TCPv1Bridge ListenForDirectConnection(
Contact remote,
Guid remoteGuid,
NSMessageHandler nsMessageHandler,
P2PVersion ver,
P2PSession startupSession,
IPAddress host, int port, Guid replyGuid, Guid remoteNonce, bool hashed)
{
ConnectivitySettings cs = new ConnectivitySettings();
if (nsMessageHandler.ConnectivitySettings.LocalHost == string.Empty)
{
cs.LocalHost = host.ToString();
cs.LocalPort = port;
}
else
{
cs.LocalHost = nsMessageHandler.ConnectivitySettings.LocalHost;
cs.LocalPort = nsMessageHandler.ConnectivitySettings.LocalPort;
}
TCPv1Bridge tcpBridge = new TCPv1Bridge(cs, ver, replyGuid, remoteNonce, hashed, startupSession, nsMessageHandler, remote, remoteGuid);
tcpBridge.Listen(IPAddress.Parse(cs.LocalHost), cs.LocalPort);
Trace.WriteLineIf(Settings.TraceSwitch.TraceInfo, "Listening on " + cs.LocalHost + ":" + cs.LocalPort.ToString(CultureInfo.InvariantCulture));
return(tcpBridge);
}
/// <summary>
/// Creates a new session initiated locally and prepares the invitation message.
/// The next step must be Invite().
/// </summary>
public P2PSession(P2PApplication app)
{
p2pApplication = app;
version = app.P2PVersion;
localContact = app.Local;
remoteContact = app.Remote;
localContactEndPointID = NSMessageHandler.MachineGuid;
remoteContactEndPointID = app.Remote.SelectBestEndPointId();
nsMessageHandler = app.Local.NSMessageHandler;
sessionId = (uint)random.Next(50000, int.MaxValue);
// These 2 fields are set when optimal bridge found.
localBaseIdentifier = 0;
localIdentifier = 0;
invitation = new SLPRequestMessage(RemoteContactEPIDString, MSNSLPRequestMethod.INVITE);
invitation.Target = RemoteContactEPIDString;
invitation.Source = LocalContactEPIDString;
invitation.ContentType = "application/x-msnmsgr-sessionreqbody";
invitation.BodyValues["SessionID"] = SessionId.ToString(System.Globalization.CultureInfo.InvariantCulture);
app.SetupInviteMessage(invitation);
app.P2PSession = this; // Register events
remoteContact.DirectBridgeEstablished += RemoteDirectBridgeEstablished;
Trace.WriteLineIf(Settings.TraceSwitch.TraceInfo,
String.Format("{0} created (Initiated locally)", SessionId), GetType().Name);
status = P2PSessionStatus.WaitingForRemote;
// Next step must be: Invite()
}
/// <summary>
/// P2PBridge constructor.
/// </summary>
protected P2PBridge(int queueSize, NSMessageHandler nsHandler)
{
this.queueSize = queueSize;
this.sequenceId = (uint)new Random().Next(5000, int.MaxValue);
this.nextCleanup = NextCleanupTime();
this.nsMessageHandler = nsHandler;
Trace.WriteLineIf(Settings.TraceSwitch.TraceVerbose,
String.Format("P2PBridge {0} created", this.ToString()), GetType().Name);
}
private static void ProcessDirectAddrUpdate(
SLPMessage message,
NSMessageHandler nsMessageHandler,
P2PSession startupSession)
{
Contact from = nsMessageHandler.ContactList.GetContactWithCreate(message.FromEmailAccount, IMAddressInfoType.WindowsLive);
IPEndPoint[] ipEndPoints = SelectIPEndPoint(message.BodyValues, nsMessageHandler);
if (from.DirectBridge != null && ipEndPoints != null && ipEndPoints.Length > 0)
{
((TCPv1Bridge)from.DirectBridge).OnDestinationAddressUpdated(new DestinationAddressUpdatedEventArgs(ipEndPoints));
}
}
private static string ConnectionType(NSMessageHandler nsMessageHandler, out int netId)
{
string connectionType = "Unknown-Connect";
netId = 0;
IPEndPoint localEndPoint = nsMessageHandler.LocalEndPoint;
IPEndPoint externalEndPoint = nsMessageHandler.ExternalEndPoint;
if (localEndPoint == null || externalEndPoint == null)
{
}
else
{
netId = BitConverter.ToInt32(localEndPoint.Address.GetAddressBytes(), 0);
if (Settings.DisableP2PDirectConnections)
{
connectionType = "Firewall";
}
else
{
if (localEndPoint.Address.Equals(externalEndPoint.Address))
{
if (localEndPoint.Port == externalEndPoint.Port)
{
connectionType = "Direct-Connect";
}
else
{
connectionType = "Port-Restrict-NAT";
}
}
else
{
if (localEndPoint.Port == externalEndPoint.Port)
{
netId = 0;
connectionType = "IP-Restrict-NAT";
}
else
{
connectionType = "Symmetric-NAT";
}
}
}
}
return(connectionType);
}
internal static void ProcessDirectInvite(SLPMessage slp, NSMessageHandler ns, P2PSession startupSession)
{
switch (slp.ContentType)
{
case "application/x-msnmsgr-transreqbody":
ProcessDCReqInvite(slp, ns, startupSession);
break;
case "application/x-msnmsgr-transrespbody":
ProcessDCRespInvite(slp, ns, startupSession);
break;
case "application/x-msnmsgr-transdestaddrupdate":
ProcessDirectAddrUpdate(slp, ns, startupSession);
break;
}
}
/// <summary>
/// Constructor.
/// </summary>
public P2PDirectProcessor(
ConnectivitySettings connectivitySettings,
P2PVersion p2pVersion,
Guid reply, Guid authNonce, bool isNeedHash,
P2PSession p2pMessageSession,
NSMessageHandler nsMessageHandler)
{
Trace.WriteLineIf(Settings.TraceSwitch.TraceInfo, "Constructing object - " + p2pVersion, GetType().Name);
Processor = new TcpSocketMessageProcessor(connectivitySettings, new P2PDCPool());
this.version = p2pVersion;
this.nonce = authNonce;
this.reply = reply;
this.needHash = isNeedHash;
this.startupSession = p2pMessageSession;
this.nsMessageHandler = nsMessageHandler;
}
protected P2PApplication(P2PVersion ver, Contact remote, Guid remoteEP)
{
if (ver == P2PVersion.None)
{
throw new InvalidOperationException(remote.ToString() + " doesn't support P2P");
}
this.version = ver;
this.local = remote.NSMessageHandler.Owner;
this.localEP = NSMessageHandler.MachineGuid;
this.remote = remote;
this.remoteEP = remoteEP;
this.nsMessageHandler = remote.NSMessageHandler;
Trace.WriteLineIf(Settings.TraceSwitch.TraceInfo,
"Application created: " + ver, GetType().Name);
}
public TCPv1Bridge(
ConnectivitySettings connectivitySettings,
P2PVersion p2pVersion,
Guid replyNonce, Guid remoteNonce, bool isNeedHash,
P2PSession p2pSession,
NSMessageHandler ns,
Contact remote, Guid remoteEpId)
: base(0, ns)
{
this.startupSession = p2pSession;
this.remote = remote;
this.remoteEpId = remoteEpId;
directConnection = new P2PDirectProcessor(connectivitySettings, p2pVersion, replyNonce, remoteNonce, isNeedHash, p2pSession, ns);
directConnection.HandshakeCompleted += new EventHandler <EventArgs>(directConnection_HandshakeCompleted);
directConnection.P2PMessageReceived += new EventHandler <P2PMessageEventArgs>(directConnection_P2PMessageReceived);
directConnection.SendCompleted += new EventHandler <MSNPSharp.Core.ObjectEventArgs>(directConnection_SendCompleted);
directConnection.DirectNegotiationTimedOut += new EventHandler <EventArgs>(directConnection_DirectNegotiationTimedOut);
directConnection.ConnectionClosed += new EventHandler <EventArgs>(directConnection_ConnectionClosed);
directConnection.ConnectingException += new EventHandler <ExceptionEventArgs>(directConnection_ConnectingException);
directConnection.ConnectionException += new EventHandler <ExceptionEventArgs>(directConnection_ConnectionException);
}
public TCPv1Bridge(
ConnectivitySettings connectivitySettings,
P2PVersion p2pVersion,
Guid replyNonce, Guid remoteNonce, bool isNeedHash,
P2PSession p2pSession,
NSMessageHandler ns,
Contact remote, Guid remoteEpId)
: base(0, ns)
{
this.startupSession = p2pSession;
this.remote = remote;
this.remoteEpId = remoteEpId;
directConnection = new P2PDirectProcessor(connectivitySettings, p2pVersion, replyNonce, remoteNonce, isNeedHash, p2pSession, ns);
directConnection.HandshakeCompleted += new EventHandler<EventArgs>(directConnection_HandshakeCompleted);
directConnection.P2PMessageReceived += new EventHandler<P2PMessageEventArgs>(directConnection_P2PMessageReceived);
directConnection.SendCompleted += new EventHandler<MSNPSharp.Core.ObjectEventArgs>(directConnection_SendCompleted);
directConnection.DirectNegotiationTimedOut += new EventHandler<EventArgs>(directConnection_DirectNegotiationTimedOut);
directConnection.ConnectionClosed += new EventHandler<EventArgs>(directConnection_ConnectionClosed);
directConnection.ConnectingException += new EventHandler<ExceptionEventArgs>(directConnection_ConnectingException);
directConnection.ConnectionException += new EventHandler<ExceptionEventArgs>(directConnection_ConnectionException);
}
public SecurityTokenServiceWrapper(NSMessageHandler nsHandler)
: base()
{
this.nsHandler = nsHandler;
}
public static XMLContactList LoadFromFile(string filename, MclSerialization st, NSMessageHandler nsHandler, bool useCache)
{
XMLContactList contactlist = (XMLContactList)LoadFromFile(filename, st, typeof(XMLContactList), nsHandler.Credentials.Password, useCache);
contactlist.NSMessageHandler = nsHandler;
return contactlist;
}
public SecurityTokenServiceWrapper(NSMessageHandler nsHandler)
: base()
{
this.nsHandler = nsHandler;
}
private static IPEndPoint[] SelectIPEndPoint(MimeDictionary bodyValues, NSMessageHandler nsMessageHandler)
{
List <IPEndPoint> externalPoints = new List <IPEndPoint>();
List <IPEndPoint> internalPoints = new List <IPEndPoint>();
bool nat = false;
#region External
if (bodyValues.ContainsKey("IPv4External-Addrs") || bodyValues.ContainsKey("srddA-lanretxE4vPI") ||
bodyValues.ContainsKey("IPv4ExternalAddrsAndPorts") || bodyValues.ContainsKey("stroPdnAsrddAlanretxE4vPI"))
{
Trace.WriteLineIf(Settings.TraceSwitch.TraceInfo, "Using external IP addresses");
if (bodyValues.ContainsKey("IPv4External-Addrs"))
{
string[] addrs = bodyValues["IPv4External-Addrs"].Value.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
string[] ports = bodyValues["IPv4External-Port"].Value.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (addrs.Length > 0 && ports.Length > 0)
{
IPAddress ip;
int port = 0;
int.TryParse(ports[0], NumberStyles.Integer, CultureInfo.InvariantCulture, out port);
for (int i = 0; i < addrs.Length; i++)
{
if (IPAddress.TryParse(addrs[i], out ip))
{
if (i < ports.Length)
{
int.TryParse(ports[i], NumberStyles.Integer, CultureInfo.InvariantCulture, out port);
}
if (port > 0)
{
externalPoints.Add(new IPEndPoint(ip, port));
}
}
}
}
}
else if (bodyValues.ContainsKey("IPv4ExternalAddrsAndPorts"))
{
string[] addrsAndPorts = bodyValues["IPv4ExternalAddrsAndPorts"].Value.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
IPAddress ip;
foreach (string str in addrsAndPorts)
{
string[] addrAndPort = str.Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
if (IPAddress.TryParse(addrAndPort[0], out ip))
{
externalPoints.Add(new IPEndPoint(ip, int.Parse(addrAndPort[1])));
}
}
}
else if (bodyValues.ContainsKey("srddA-lanretxE4vPI"))
{
nat = true;
char[] revHost = bodyValues["srddA-lanretxE4vPI"].ToString().ToCharArray();
Array.Reverse(revHost);
string[] addrs = new string(revHost).Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
char[] revPort = bodyValues["troP-lanretxE4vPI"].ToString().ToCharArray();
Array.Reverse(revPort);
string[] ports = new string(revPort).Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (addrs.Length > 0 && ports.Length > 0)
{
IPAddress ip;
int port = 0;
int.TryParse(ports[0], NumberStyles.Integer, CultureInfo.InvariantCulture, out port);
for (int i = 0; i < addrs.Length; i++)
{
if (IPAddress.TryParse(addrs[i], out ip))
{
if (i < ports.Length)
{
int.TryParse(ports[i], NumberStyles.Integer, CultureInfo.InvariantCulture, out port);
}
if (port > 0)
{
externalPoints.Add(new IPEndPoint(ip, port));
}
}
}
}
}
else if (bodyValues.ContainsKey("stroPdnAsrddAlanretxE4vPI"))
{
nat = true;
char[] rev = bodyValues["stroPdnAsrddAlanretxE4vPI"].ToString().ToCharArray();
Array.Reverse(rev);
string[] addrsAndPorts = new string(rev).Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
IPAddress ip;
foreach (string str in addrsAndPorts)
{
string[] addrAndPort = str.Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
if (IPAddress.TryParse(addrAndPort[0], out ip))
{
externalPoints.Add(new IPEndPoint(ip, int.Parse(addrAndPort[1])));
}
}
}
Trace.WriteLineIf(Settings.TraceSwitch.TraceWarning,
String.Format("{0} external IP addresses found:", externalPoints.Count));
foreach (IPEndPoint ipep in externalPoints)
{
Trace.WriteLineIf(Settings.TraceSwitch.TraceVerbose, "\t" + ipep.ToString());
}
}
#endregion
#region Internal
if (bodyValues.ContainsKey("IPv4Internal-Addrs") || bodyValues.ContainsKey("srddA-lanretnI4vPI") ||
bodyValues.ContainsKey("IPv4InternalAddrsAndPorts") || bodyValues.ContainsKey("stroPdnAsrddAlanretnI4vPI"))
{
Trace.WriteLineIf(Settings.TraceSwitch.TraceInfo, "Using internal IP addresses");
if (bodyValues.ContainsKey("IPv4Internal-Addrs"))
{
string[] addrs = bodyValues["IPv4Internal-Addrs"].Value.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
string[] ports = bodyValues["IPv4Internal-Port"].Value.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (addrs.Length > 0 && ports.Length > 0)
{
IPAddress ip;
int port = 0;
int.TryParse(ports[0], NumberStyles.Integer, CultureInfo.InvariantCulture, out port);
for (int i = 0; i < addrs.Length; i++)
{
if (IPAddress.TryParse(addrs[i], out ip))
{
if (i < ports.Length)
{
int.TryParse(ports[i], NumberStyles.Integer, CultureInfo.InvariantCulture, out port);
}
if (port > 0)
{
internalPoints.Add(new IPEndPoint(ip, port));
}
}
}
}
}
else if (bodyValues.ContainsKey("IPv4InternalAddrsAndPorts"))
{
string[] addrsAndPorts = bodyValues["IPv4InternalAddrsAndPorts"].Value.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
IPAddress ip;
foreach (string str in addrsAndPorts)
{
string[] addrAndPort = str.Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
if (IPAddress.TryParse(addrAndPort[0], out ip))
{
internalPoints.Add(new IPEndPoint(ip, int.Parse(addrAndPort[1])));
}
}
}
else if (bodyValues.ContainsKey("srddA-lanretnI4vPI"))
{
nat = true;
char[] revHost = bodyValues["srddA-lanretnI4vPI"].ToString().ToCharArray();
Array.Reverse(revHost);
string[] addrs = new string(revHost).Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
char[] revPort = bodyValues["troP-lanretnI4vPI"].ToString().ToCharArray();
Array.Reverse(revPort);
string[] ports = new string(revPort).Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (addrs.Length > 0 && ports.Length > 0)
{
IPAddress ip;
int port = 0;
int.TryParse(ports[0], NumberStyles.Integer, CultureInfo.InvariantCulture, out port);
for (int i = 0; i < addrs.Length; i++)
{
if (IPAddress.TryParse(addrs[i], out ip))
{
if (i < ports.Length)
{
int.TryParse(ports[i], NumberStyles.Integer, CultureInfo.InvariantCulture, out port);
}
if (port > 0)
{
internalPoints.Add(new IPEndPoint(ip, port));
}
}
}
}
}
else if (bodyValues.ContainsKey("stroPdnAsrddAlanretnI4vPI"))
{
nat = true;
char[] rev = bodyValues["stroPdnAsrddAlanretnI4vPI"].ToString().ToCharArray();
Array.Reverse(rev);
string[] addrsAndPorts = new string(rev).Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
IPAddress ip;
foreach (string str in addrsAndPorts)
{
string[] addrAndPort = str.Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
if (IPAddress.TryParse(addrAndPort[0], out ip))
{
internalPoints.Add(new IPEndPoint(ip, int.Parse(addrAndPort[1])));
}
}
}
Trace.WriteLineIf(Settings.TraceSwitch.TraceWarning,
String.Format("{0} internal IP addresses found:", internalPoints.Count));
foreach (IPEndPoint ipep in internalPoints)
{
Trace.WriteLineIf(Settings.TraceSwitch.TraceVerbose, "\t" + ipep.ToString());
}
}
#endregion
if (externalPoints.Count == 0 && internalPoints.Count == 0)
{
Trace.WriteLineIf(Settings.TraceSwitch.TraceError, "Unable to find any remote IP addresses");
// Failed
return(null);
}
Trace.WriteLineIf(Settings.TraceSwitch.TraceInfo, "Is NAT: " + nat);
List <IPEndPoint> ret = new List <IPEndPoint>();
// Try to find the correct IP
byte[] localBytes = nsMessageHandler.LocalEndPoint.Address.GetAddressBytes();
foreach (IPEndPoint ipep in internalPoints)
{
if (ipep.Address.AddressFamily == AddressFamily.InterNetwork)
{
// This is an IPv4 address
// Check if the first 3 octets match our local IP address
// If so, make use of that address (it's on our LAN)
byte[] bytes = ipep.Address.GetAddressBytes();
if ((bytes[0] == localBytes[0]) && (bytes[1] == localBytes[1]) && (bytes[2] == localBytes[2]))
{
ret.Add(ipep);
break;
}
}
}
if (ret.Count == 0)
{
foreach (IPEndPoint ipep in internalPoints)
{
if (!ret.Contains(ipep))
{
ret.Add(ipep);
}
}
}
foreach (IPEndPoint ipep in externalPoints)
{
if (!ret.Contains(ipep))
{
ret.Add(ipep);
}
}
return(ret.ToArray());
}
public SDGBridge(NSMessageHandler nsHandler)
: base(QueueSize, nsHandler)
{
nsHandler.MessageProcessorChanged += nsHandler_MessageProcessorChanged;
}
public SDGBridge(NSMessageHandler nsHandler)
: base(QueueSize, nsHandler)
{
nsHandler.MessageProcessorChanged += nsHandler_MessageProcessorChanged;
}
private static void ProcessDCRespInvite(SLPMessage message, NSMessageHandler ns, P2PSession startupSession)
{
MimeDictionary bodyValues = message.BodyValues;
// Check the protocol
if (bodyValues.ContainsKey("Bridge") &&
bodyValues["Bridge"].ToString() == "TCPv1" &&
bodyValues.ContainsKey("Listening") &&
bodyValues["Listening"].ToString().ToLowerInvariant().IndexOf("true") >= 0)
{
Contact remote = ns.ContactList.GetContactWithCreate(message.FromEmailAccount, IMAddressInfoType.WindowsLive);
Guid remoteGuid = message.FromEndPoint;
DCNonceType dcNonceType;
Guid remoteNonce = ParseDCNonce(message.BodyValues, out dcNonceType);
bool hashed = (dcNonceType == DCNonceType.Sha1);
Guid replyGuid = hashed ? remote.dcPlainKey : remoteNonce;
IPEndPoint[] selectedPoint = SelectIPEndPoint(bodyValues, ns);
if (selectedPoint != null && selectedPoint.Length > 0)
{
P2PVersion ver = message.P2PVersion;
// We must connect to the remote client
ConnectivitySettings settings = new ConnectivitySettings();
settings.EndPoints = selectedPoint;
remote.DirectBridge = CreateDirectConnection(remote, remoteGuid, ver, settings, replyGuid, remoteNonce, hashed, ns, startupSession);
bool needConnectingEndpointInfo;
if (bodyValues.ContainsKey("NeedConnectingEndpointInfo") &&
bool.TryParse(bodyValues["NeedConnectingEndpointInfo"], out needConnectingEndpointInfo) &&
needConnectingEndpointInfo == true)
{
IPEndPoint ipep = ((TCPv1Bridge)remote.DirectBridge).LocalEndPoint;
string desc = "stroPdnAsrddAlanretnI4vPI";
char[] rev = ipep.ToString().ToCharArray();
Array.Reverse(rev);
string ipandport = new string(rev);
SLPRequestMessage slpResponseMessage = new SLPRequestMessage(message.Source, MSNSLPRequestMethod.ACK);
slpResponseMessage.Source = message.Target;
slpResponseMessage.Via = message.Via;
slpResponseMessage.CSeq = 0;
slpResponseMessage.CallId = Guid.Empty;
slpResponseMessage.MaxForwards = 0;
slpResponseMessage.ContentType = @"application/x-msnmsgr-transdestaddrupdate";
slpResponseMessage.BodyValues[desc] = ipandport;
slpResponseMessage.BodyValues["Nat-Trav-Msg-Type"] = "WLX-Nat-Trav-Msg-Updated-Connecting-Port";
P2PMessage msg = new P2PMessage(ver);
msg.InnerMessage = slpResponseMessage;
ns.SDGBridge.Send(null, remote, remoteGuid, msg);
}
return;
}
}
if (startupSession != null)
{
startupSession.DirectNegotiationFailed();
}
}
protected internal P2PHandler(NSMessageHandler nsHandler)
{
this.nsMessageHandler = nsHandler;
this.sdgBridge = new SDGBridge(nsHandler);
this.slpHandler = new SLPHandler(nsHandler);
}
/// <summary>
/// Creates a new session initiated remotely. If the application cannot be handled, decline message will be sent.
/// The application will handle all messages automatically and no user interaction is required if AutoAccept is true.
/// If AutoAccept is false, <see cref="P2PHandler.InvitationReceived"/> event will be fired.
/// </summary>
public P2PSession(SLPRequestMessage slp, P2PMessage msg, NSMessageHandler ns, P2PBridge bridge)
{
nsMessageHandler = ns;
invitation = slp;
version = slp.P2PVersion;
if (version == P2PVersion.P2PV1)
{
localContact = (slp.ToEmailAccount == ns.Owner.Account) ?
ns.Owner : ns.ContactList.GetContactWithCreate(slp.ToEmailAccount, IMAddressInfoType.WindowsLive);
remoteContact = ns.ContactList.GetContactWithCreate(slp.FromEmailAccount, IMAddressInfoType.WindowsLive);
}
else
{
localContact = (slp.ToEmailAccount == ns.Owner.Account) ?
ns.Owner : ns.ContactList.GetContactWithCreate(slp.ToEmailAccount, IMAddressInfoType.WindowsLive);
localContactEndPointID = slp.ToEndPoint;
remoteContact = ns.ContactList.GetContactWithCreate(slp.FromEmailAccount, IMAddressInfoType.WindowsLive);
remoteContactEndPointID = slp.FromEndPoint;
}
if (!uint.TryParse(slp.BodyValues["SessionID"].Value, out sessionId))
{
Trace.WriteLineIf(Settings.TraceSwitch.TraceWarning,
"Can't parse SessionID: " + SessionId, GetType().Name);
}
p2pBridge = bridge;
localBaseIdentifier = bridge.SequenceId;
localIdentifier = localBaseIdentifier;
status = P2PSessionStatus.WaitingForLocal;
Trace.WriteLineIf(Settings.TraceSwitch.TraceInfo,
String.Format("{0} created (Initiated remotely)", SessionId), GetType().Name);
remoteContact.DirectBridgeEstablished += RemoteDirectBridgeEstablished;
if (msg != null)
{
// Set remote baseID
remoteBaseIdentifier = msg.Header.Identifier;
remoteIdentifier = remoteBaseIdentifier;
if (version == P2PVersion.P2PV2)
{
remoteIdentifier += msg.V2Header.MessageSize;
}
}
// Create application based on invitation
uint appId = slp.BodyValues.ContainsKey("AppID") ? uint.Parse(slp.BodyValues["AppID"].Value) : 0;
Guid eufGuid = slp.BodyValues.ContainsKey("EUF-GUID") ? new Guid(slp.BodyValues["EUF-GUID"].Value) : Guid.Empty;
p2pApplication = P2PApplication.CreateInstance(eufGuid, appId, this);
if (p2pApplication != null && p2pApplication.ValidateInvitation(invitation))
{
if (p2pApplication.AutoAccept)
{
Accept();
}
else
{
ns.P2PHandler.OnInvitationReceived(new P2PSessionEventArgs(this));
}
}
else
{
Decline();
}
}
protected internal SLPHandler(NSMessageHandler nsHandler)
{
this.nsMessageHandler = nsHandler;
}
private static TCPv1Bridge CreateDirectConnection(Contact remote, Guid remoteGuid, P2PVersion ver, ConnectivitySettings cs, Guid replyGuid, Guid remoteNonce, bool hashed, NSMessageHandler nsMessageHandler, P2PSession startupSession)
{
string[] points = new string[cs.EndPoints.Length];
for (int i = 0; i < points.Length; i++)
{
points[i] = cs.EndPoints[i].ToString();
}
TCPv1Bridge tcpBridge = new TCPv1Bridge(cs, ver, replyGuid, remoteNonce, hashed, startupSession, nsMessageHandler, remote, remoteGuid);
Trace.WriteLineIf(Settings.TraceSwitch.TraceInfo, "Trying to setup direct connection with remote hosts " + string.Join(",", points));
tcpBridge.Connect();
return(tcpBridge);
}
protected internal SLPHandler(NSMessageHandler nsHandler)
{
this.nsMessageHandler = nsHandler;
}
/// <summary>
/// P2PBridge constructor.
/// </summary>
protected P2PBridge(int queueSize, NSMessageHandler nsHandler)
{
this.queueSize = queueSize;
this.sequenceId = (uint)new Random().Next(5000, int.MaxValue);
this.nextCleanup = NextCleanupTime();
this.nsMessageHandler = nsHandler;
Trace.WriteLineIf(Settings.TraceSwitch.TraceVerbose,
String.Format("P2PBridge {0} created", this.ToString()), GetType().Name);
}
/// <summary>
/// Constructor.
/// </summary>
public P2PDirectProcessor(
ConnectivitySettings connectivitySettings,
P2PVersion p2pVersion,
Guid reply, Guid authNonce, bool isNeedHash,
P2PSession p2pMessageSession,
NSMessageHandler nsMessageHandler)
{
Trace.WriteLineIf(Settings.TraceSwitch.TraceInfo, "Constructing object - " + p2pVersion, GetType().Name);
Processor = new TcpSocketMessageProcessor(connectivitySettings, new P2PDCPool());
this.version = p2pVersion;
this.nonce = authNonce;
this.reply = reply;
this.needHash = isNeedHash;
this.startupSession = p2pMessageSession;
this.nsMessageHandler = nsMessageHandler;
}
private static void ProcessDCReqInvite(SLPMessage message, NSMessageHandler ns, P2PSession startupSession)
{
if (startupSession != null && startupSession.Bridge != null &&
startupSession.Bridge is TCPv1Bridge)
{
return; // We are using a dc bridge already. Don't allow second one.
}
if (message.BodyValues.ContainsKey("Bridges") &&
message.BodyValues["Bridges"].ToString().Contains("TCPv1"))
{
SLPStatusMessage slpMessage = new SLPStatusMessage(message.Source, 200, "OK");
slpMessage.Target = message.Source;
slpMessage.Source = message.Target;
slpMessage.Branch = message.Branch;
slpMessage.CSeq = 1;
slpMessage.CallId = message.CallId;
slpMessage.MaxForwards = 0;
slpMessage.ContentType = "application/x-msnmsgr-transrespbody";
slpMessage.BodyValues["Bridge"] = "TCPv1";
Guid remoteGuid = message.FromEndPoint;
Contact remote = ns.ContactList.GetContactWithCreate(message.FromEmailAccount, IMAddressInfoType.WindowsLive);
DCNonceType dcNonceType;
Guid remoteNonce = ParseDCNonce(message.BodyValues, out dcNonceType);
if (remoteNonce == Guid.Empty) // Plain
{
remoteNonce = remote.dcPlainKey;
}
bool hashed = (dcNonceType == DCNonceType.Sha1);
string nonceFieldName = hashed ? "Hashed-Nonce" : "Nonce";
Guid myHashedNonce = hashed ? remote.dcLocalHashedNonce : remoteNonce;
Guid myPlainNonce = remote.dcPlainKey;
if (dcNonceType == DCNonceType.Sha1)
{
// Remote contact supports Hashed-Nonce
remote.dcType = dcNonceType;
remote.dcRemoteHashedNonce = remoteNonce;
}
else
{
remote.dcType = DCNonceType.Plain;
myPlainNonce = remote.dcPlainKey = remote.dcLocalHashedNonce = remote.dcRemoteHashedNonce = remoteNonce;
}
// Find host by name
IPAddress ipAddress = ns.LocalEndPoint.Address;
int port;
P2PVersion ver = message.P2PVersion;
if (Settings.DisableP2PDirectConnections ||
false == ipAddress.Equals(ns.ExternalEndPoint.Address) ||
(0 == (port = GetNextDirectConnectionPort(ipAddress))))
{
slpMessage.BodyValues["Listening"] = "false";
slpMessage.BodyValues[nonceFieldName] = Guid.Empty.ToString("B").ToUpper(CultureInfo.InvariantCulture);
}
else
{
// Let's listen
remote.DirectBridge = ListenForDirectConnection(remote, remoteGuid, ns, ver, startupSession, ipAddress, port, myPlainNonce, remoteNonce, hashed);
slpMessage.BodyValues["Listening"] = "true";
slpMessage.BodyValues["Capabilities-Flags"] = "1";
slpMessage.BodyValues["IPv6-global"] = string.Empty;
slpMessage.BodyValues["Nat-Trav-Msg-Type"] = "WLX-Nat-Trav-Msg-Direct-Connect-Resp";
slpMessage.BodyValues["UPnPNat"] = "false";
slpMessage.BodyValues["NeedConnectingEndpointInfo"] = "true";
slpMessage.BodyValues["Conn-Type"] = "Direct-Connect";
slpMessage.BodyValues["TCP-Conn-Type"] = "Direct-Connect";
slpMessage.BodyValues[nonceFieldName] = myHashedNonce.ToString("B").ToUpper(CultureInfo.InvariantCulture);
slpMessage.BodyValues["IPv4Internal-Addrs"] = ipAddress.ToString();
slpMessage.BodyValues["IPv4Internal-Port"] = port.ToString(CultureInfo.InvariantCulture);
// check if client is behind firewall (NAT-ted)
// if so, send the public ip also the client, so it can try to connect to that ip
if (!ns.ExternalEndPoint.Address.Equals(ns.LocalEndPoint.Address))
{
slpMessage.BodyValues["IPv4External-Addrs"] = ns.ExternalEndPoint.Address.ToString();
slpMessage.BodyValues["IPv4External-Port"] = port.ToString(CultureInfo.InvariantCulture);
}
}
P2PMessage p2pMessage = new P2PMessage(ver);
p2pMessage.InnerMessage = slpMessage;
if (ver == P2PVersion.P2PV2)
{
p2pMessage.V2Header.TFCombination = TFCombination.First;
}
else if (ver == P2PVersion.P2PV1)
{
p2pMessage.V1Header.Flags = P2PFlag.MSNSLPInfo;
}
if (startupSession != null)
{
startupSession.SetupDCTimer();
startupSession.Bridge.Send(null, startupSession.Remote, startupSession.RemoteContactEndPointID, p2pMessage);
}
else
{
ns.SDGBridge.Send(null, remote, remoteGuid, p2pMessage);
}
}
else
{
if (startupSession != null)
{
startupSession.DirectNegotiationFailed();
}
}
}
