//private string mergeRoutes(string message_text)
//{
// string route = "Route: ";
// StringBuilder sb = new StringBuilder();
// int index = -1;
// foreach (string line in message_text.Split(new string[] { "\r\n" }, StringSplitOptions.None))
// {
// if (line.StartsWith("Route:"))
// {
// route = route + line.Remove(0, 6) + ",";
// }
// else if (line.StartsWith("Content-Length"))
// {
// route = route.Remove(route.Length - 1);
// sb.Append(route + "\r\n");
// sb.Append(line + "\r\n");
// sb.Append("\r\n");
// index = message_text.IndexOf(line) + line.Length;
// break;
// }
// else
// {
// sb.Append(line + "\r\n");
// }
// }
// sb.Append(message_text.Substring(index));
// return sb.ToString();
//}
/// <summary>
/// Processing of raw received data
/// </summary>
/// <param name="data">The received data.</param>
/// <param name="src">The data source.</param>
public void Received(string data, string[] src)
{
// Ignore empty messages sent by the openIMS core.
if (data.Length > 2)
{
if (data.Contains("INVITE"))
{
//Hook to log particular types of messages
_log.Debug(new Message(data));
}
//try
//{
Message m = new Message(data);
SIPURI uri = new SIPURI("sip" + ":" + src[0] + ":" + src[1]);
if (m.Method != null)
{
if (!m.Headers.ContainsKey("Via"))
{
Debug.Assert(false, String.Format("No Via header in request \n{0}\n", m));
}
Header via = m.Headers["Via"].First();
if (via.ViaUri.Host != src[0] || !src[1].Equals(via.ViaUri.Port))
{
via.Attributes.Add("received", src[0]);
via.ViaUri.Host = src[0];
}
if (via.Attributes.ContainsKey("rport"))
{
via.Attributes["rport"] = src[1];
}
via.ViaUri.Port = Convert.ToInt32(src[1]);
ReceivedRequest(m, uri);
}
else if (m.ResponseCode > 0)
{
ReceivedResponse(m, uri);
}
else
{
Debug.Assert(false, String.Format("Received invalid message \n{0}\n", m));
}
//}
//catch (Exception ex)
//{
// Debug.Assert(false,
// String.Format("Error in received message \n{0}\n with error message {1}", data,
// ex.Message));
//}
}
}
/// <summary>
/// Handle received request
/// </summary>
/// <param name="m">The received message.</param>
/// <param name="uri">The SIPURI that sent the message.</param>
private void ReceivedRequest(Message m, SIPURI uri)
{
string branch = m.Headers["Via"][0].Attributes["branch"];
Transaction t;
if (m.Method == "ACK")
{
if (branch == "0")
{
t = null;
}
else
{
t = FindTransaction(branch);
if (t == null || (t.LastResponse != null && t.LastResponse.Is2XX()))
{
t = FindTransaction(Transaction.CreateId(branch, m.Method));
}
}
}
else
{
t = FindTransaction(Transaction.CreateId(branch, m.Method));
}
if (t == null)
{
UserAgent app = null; // Huh ?
if ((m.Method != "CANCEL") && (m.Headers["To"][0].Attributes.ContainsKey("tag")))
{
//In dialog request
Dialog d = FindDialog(m);
if (d == null)
{
if (m.Method != "ACK")
{
//Updated from latest code TODO
UserAgent u = CreateServer(m, uri);
if (u != null)
{
app = u;
}
else
{
// TODO: FIX NOTIFY ON SUBSCRIBE HANDLING
if (m.Method != "NOTIFY")
{
Send(Message.CreateResponse(481, "Dialog does not exist", null, null, m));
return;
}
else
{
string branchID = m.Headers["Via"][0].Attributes["branch"];
if (_seenNotifys.ContainsKey(branchID) && _seenNotifys[branchID] > 1)
{
Send(Message.CreateResponse(481, "Dialog does not exist", null, null, m));
return;
}
else
{
if (_seenNotifys.ContainsKey(branchID))
{
_seenNotifys[branchID] = _seenNotifys[branchID] + 1;
}
else
{
_seenNotifys[branchID] = 1;
}
}
}
return;
}
}
else
{
_log.Info("No dialog for ACK, finding transaction");
if (t == null && branch != "0")
{
t = FindTransaction(Transaction.CreateId(branch, "INVITE"));
}
if (t != null && t.State != "terminated")
{
t.ReceivedRequest(m);
return;
}
else
{
_log.Info("No existing transaction for ACK \n");
UserAgent u = CreateServer(m, uri);
if (u != null)
{
app = u;
}
else return;
}
}
}
else
{
app = d;
}
}
else if (m.Method != "CANCEL")
{
//Out of dialog request
UserAgent u = CreateServer(m, uri);
if (u != null)
{
//TODO error.....
app = u;
}
else if (m.Method == "OPTIONS")
{
//Handle OPTIONS
Message reply = Message.CreateResponse(200, "OK", null, null, m);
reply.InsertHeader(new Header("INVITE,ACK,CANCEL,BYE,OPTION,MESSAGE,PUBLISH", "Allow"));
Send(m);
return;
}
else if (m.Method == "MESSAGE")
{
//Handle MESSAGE
UserAgent ua = new UserAgent(this) {Request = m};
/*Message reply = ua.CreateResponse(200, "OK");
Send(reply);*/
App.ReceivedRequest(ua, m, this);
return;
}
else if (m.Method == "PUBLISH")
{
UserAgent ua = new UserAgent(this) {Request = m};
App.ReceivedRequest(ua, m, this);
return;
}
else if (m.Method != "ACK")
{
Send(Message.CreateResponse(405, "Method not allowed", null, null, m));
return;
}
}
else
{
//Cancel Request
Transaction o =
FindTransaction(Transaction.CreateId(m.Headers["Via"][0].Attributes["branch"], "INVITE"));
if (o == null)
{
Send(Message.CreateResponse(481, "Original transaction does not exist", null, null, m));
return;
}
app = o.App;
}
if (app != null)
{
//t = Transaction.CreateServer(app.Stack, app, app.Request, app.Stack.Transport, app.Stack.Tag);
// TODO: Check app or this ?
t = Transaction.CreateServer(this, app, m, Transport, Tag);
}
else if (m.Method != "ACK")
{
Send(Message.CreateResponse(404, "Not found", null, null, m));
}
}
else
{
t.ReceivedRequest(m);
}
}
/// <summary> /// Stub to create a SIP server user agent. /// </summary> /// <param name="request">The request.</param> /// <param name="uri">The URI.</param> /// <param name="sipStack">The sip stack.</param> /// <returns>UserAgent.</returns> public abstract UserAgent CreateServer(Message request, SIPURI uri, SIPStack sipStack);
/// <summary>
/// Creates the SIP server.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="uri">The URI.</param>
/// <returns>UserAgent.</returns>
public UserAgent CreateServer(Message request, SIPURI uri)
{
return App.CreateServer(request, uri, this);
}
/// <summary>
/// Creates a SIP request.
/// </summary>
/// <param name="method">The SIP method (invite etc.)</param>
/// <param name="content">The SIP body contents.</param>
/// <param name="contentType">The type of the SIP body.</param>
/// <returns>Message.</returns>
public virtual Message CreateRequest(string method, string content = "", string contentType = "")
{
Server = false;
if (RemoteParty == null)
{
Debug.Assert(false, String.Format("No remoteParty for UAC\n"));
}
if (LocalParty == null)
{
LocalParty = new Address("\"Anonymous\" <sip:[email protected]>");
}
//TODO: Use Remote Party instead of Remote Target?
SIPURI uri;
if (RemoteTarget != null)
{
uri = new SIPURI(RemoteTarget.ToString());
}
else
{
uri = new SIPURI(RemoteParty.ToString());
}
if (method == "REGISTER")
{
//TODO: Is this right ?
//uri.User = "";
}
if ((method != "ACK") && (method != "CANCEL"))
{
LocalSeq = ++LocalSeq;
}
//TODO: Use Remote Party instead of Remote Target?
Header to;
if (RemoteTarget != null)
{
to = new Header(RemoteTarget.ToString(), "To");
}
else
{
to = new Header(RemoteParty.ToString(), "To");
}
Header from = new Header(LocalParty.ToString(), "From");
from.Attributes["tag"] = LocalTag;
Header cSeq = new Header(LocalSeq + " " + method, "CSeq");
Header callId = new Header(CallID, "Call-ID");
Header maxForwards = new Header(MaxForwards.ToString(), "Max-Forwards");
Header via = Stack.CreateVia();
Dictionary<string, object> branchParams = new Dictionary<string, object>
{
{"To", to.Value},
{"From", @from.Value},
{"CallId", callId.Value},
{"CSeq", cSeq.Number}
};
via.Attributes["branch"] = Transaction.CreateBranch(branchParams, false);
if (LocalTarget == null)
{
LocalTarget = Stack.Uri.Dup();
LocalTarget.User = LocalParty.Uri.User;
}
Header contact = new Header(LocalTarget.ToString(), "Contact");
Header[] headerList = {to, from, cSeq, callId, maxForwards, via, contact};
List<Header> headers = headerList.ToList();
// Check this TODO
//
if (RouteSet.Count != 0)
{
headers.AddRange(RouteSet);
}
//app adds other headers such as Supported, Require and Proxy-Require
if (!string.IsNullOrEmpty(contentType))
{
headers.Add(new Header(contentType, "Content-Type"));
}
Dictionary<string, List<Header>> headerDict = new Dictionary<string, List<Header>>();
foreach (Header h in headers)
{
if (headerDict.ContainsKey(h.Name))
{
headerDict[h.Name].Add(h);
}
else
{
List<Header> temp = new List<Header> {h};
headerDict.Add(h.Name, temp);
}
}
Request = Message.CreateRequest(method, uri, headerDict, content);
return Request;
}
/// <summary>
/// Parses the specified string into an header object.
/// </summary>
/// <param name="name">The header name.</param>
/// <param name="value">The header value.</param>
public void Parse(string name, string value)
{
string rest = "";
int index = 0;
if (Address.Contains(name.ToLower()))
{
HeaderType = "address";
Address addr = new Address {MustQuote = true};
int count = addr.Parse(value);
Value = addr;
if (count < value.Length)
rest = value.Substring(count, value.Length - count);
if (rest.Length > 0)
{
foreach (string parm in rest.Split(';'))
{
if (parm.Contains('='))
{
index = parm.IndexOf('=');
string parmName = parm.Substring(0, index);
string parmValue = parm.Substring(index + 1);
Attributes.Add(parmName, parmValue);
}
}
}
}
else if (!(Comma.Contains(name.ToLower())) && !(Unstructured.Contains(name.ToLower())))
{
HeaderType = "standard";
if (!value.Contains(";lr>"))
{
if (value.Contains(';'))
{
index = value.IndexOf(';');
Value = value.Substring(0, index);
string tempStr = value.Substring(index + 1).Trim();
foreach (string parm in tempStr.Split(';'))
{
if (parm.Contains('='))
{
index = parm.IndexOf('=');
string parmName = parm.Substring(0, index);
string parmValue = parm.Substring(index + 1);
Attributes.Add(parmName, parmValue);
}
}
}
else
{
Value = value;
}
}
else
{
Value = value;
}
}
if (Comma.Contains(name.ToLower()))
{
HeaderType = "comma";
if (value.Contains(' '))
{
index = value.IndexOf(' ');
AuthMethod = value.Substring(0, index).Trim();
Value = value.Substring(0, index).Trim();
string values = value.Substring(index + 1);
foreach (string parm in values.Split(','))
{
if (parm.Contains('='))
{
index = parm.IndexOf('=');
string parmName = parm.Substring(0, index);
string parmValue = parm.Substring(index + 1);
Attributes.Add(parmName, parmValue);
}
}
}
}
else if (name.ToLower() == "cseq")
{
HeaderType = "unstructured";
string[] parts = value.Trim().Split(' ');
int tempNumber = -1;
int.TryParse(parts[0], out tempNumber);
Number = tempNumber;
Method = parts[1];
}
if (Unstructured.Contains(name.ToLower()) && name.ToLower() != "cseq")
{
HeaderType = "unstructured";
Value = value;
}
if (name.ToLower() == "via")
{
string[] parts = value.Split(' ');
string proto = parts[0];
string addr = parts[1].Split(';')[0];
string type = proto.Split('/')[2].ToLower();
ViaUri = new SIPURI("sip:" + addr + ";transport=" + type);
if (ViaUri.Port == 0)
{
ViaUri.Port = 5060;
}
if (Attributes.Keys.Contains("rport"))
{
int tempPort = 5060;
int.TryParse(Attributes["rport"], out tempPort);
ViaUri.Port = tempPort;
}
if ((type != "tcp") && (type != "sctp") && (type != "tls"))
{
if (Attributes.Keys.Contains("maddr"))
{
ViaUri.Host = Attributes["maddr"];
}
else if (Attributes.Keys.Contains("received"))
{
ViaUri.Host = Attributes["received"];
}
}
}
}
/// <summary>
/// Parses the specified address and sets the local variables.
/// </summary>
/// <param name="address">The address.</param>
/// <returns>System.Int32.</returns>
public int Parse(string address)
{
if (address.StartsWith("*"))
{
Wildcard = true;
return 1;
}
string[] regExs =
{
@"^(?<name>[a-zA-Z0-9\-\._\+\~\ \t]*)<(?<uri>[^>]+)>",
@"^(""(?<name>[a-zA-Z0-9\-\._\+\~\ \t]+)"")[\ \t]*<(?<uri>[^>]+)>",
@"^[\ \t]*(?<name>)(?<uri>[^;]+)"
};
foreach (string expression in regExs)
{
Regex exp = new Regex(expression, RegexOptions.IgnoreCase);
MatchCollection mc = exp.Matches(address);
foreach (Match m in mc)
{
DisplayName = m.Groups["name"].ToString().Trim();
Uri = new SIPURI(m.Groups["uri"].ToString().Trim());
return m.Length;
}
}
return -1;
}
/// <summary>
/// Determines whether the specified URI is local.
/// </summary>
/// <param name="uri">The URI.</param>
/// <returns><c>true</c> if the specified URI is local; otherwise, <c>false</c>.</returns>
public bool IsLocal(SIPURI uri)
{
bool host = Stack.Transport.Host.ToString() == uri.Host || uri.Host == "localhost" ||
uri.Host == "127.0.0.1";
bool port = false;
if (uri.Port <= 0)
{
if (Stack.Transport.Port == 5060)
{
port = true;
}
}
port = (Stack.Transport.Port == uri.Port) || port;
return (host && port);
}
/// <summary>
/// Sends a specific SIP request.
/// </summary>
/// <param name="request">The request.</param>
public virtual void SendRequest(Message request)
{
if ((Request == null) && (request.Method == "REGISTER"))
{
if ((Transaction == null) && (Transaction.State != "completed") && (Transaction.State != "terminated"))
{
//TODO This doesn't make sense....
Debug.Assert(false, String.Format("Cannot re-REGISTER since pending registration\n"));
}
}
Request = request;
if (!request.Headers.ContainsKey("Route"))
{
RemoteTarget = request.Uri;
}
SIPURI target = RemoteTarget;
if (request.Headers.ContainsKey("Route"))
{
if (request.Headers["Route"].Count > 0)
{
target = ((Address)(request.Headers["Route"][0].Value)).Uri;
if ((target == null) || !target.Parameters.ContainsKey("lr"))
{
request.Headers["Route"].RemoveAt(0);
if (request.Headers["Route"].Count > 0)
{
request.Headers["Route"].Insert(request.Headers["Route"].Count - 1,
new Header(request.Uri.ToString(), "Route"));
}
request.Uri = target;
}
}
}
// TODO: remove any Route Header in REGISTER request
Stack.Sending(this, request);
if (target != null)
{
SIPURI dest = target.Dup();
if (dest.Port == 0)
{
dest.Port = 5060;
}
if (Helpers.IsIPv4(dest.Host))
{
RemoteCandidates = new List <SIPURI> {
dest
};
}
}
if ((RemoteCandidates == null) || (RemoteCandidates.Count == 0))
{
Error(null, "Cannot Resolve DNS target");
return;
}
target = RemoteCandidates.First();
RemoteCandidates.RemoveAt(0);
if (Request.Method != "ACK")
{
Transaction = Transaction.CreateClient(Stack, this, Request, Stack.Transport,
target.Host + ":" + target.Port);
}
else
{
Stack.Send(Request, target.Host + ":" + target.Port);
}
}
/// <summary>
/// Sends the SIP request.
/// </summary>
/// <param name="request">The request.</param>
public override void SendRequest(Message request)
{
SIPURI target = null;
if (request.First("Route") == null)
{
target = request.Uri;
}
else
{
var routes = request.Headers["Route"];
if (routes.Count > 0)
{
try
{
target = ((Address)routes[0].Value).Uri;
string test = target.Parameters["lr"];
}
catch (Exception)
{
routes.RemoveAt(0);
if (routes.Count > 0)
{
routes.Add(new Header(request.Uri.ToString(), "Route"));
}
request.Headers["Route"] = routes;
request.Uri = target;
}
}
}
Stack.Sending(this, request);
ProxyBranch branch = new ProxyBranch();
SIPURI dest = target.Dup();
if (target.Port <= 0)
{
dest.Port = 5060;
}
else
{
dest.Port = target.Port;
}
if (!Helpers.IsIPv4(dest.Host))
{
try
{
IPAddress[] addresses = Dns.GetHostAddresses(dest.Host);
dest.Host = addresses[0].ToString();
}
catch (Exception)
{
}
}
if (Helpers.IsIPv4(dest.Host))
{
branch.RemoteCandidates = new List <SIPURI> {
dest
};
}
if (branch.RemoteCandidates == null || branch.RemoteCandidates.Count == 0)
{
Error(null, "Cannot resolve DNS target");
return;
}
target = branch.RemoteCandidates.First();
branch.RemoteCandidates.RemoveAt(0);
if (!request.Method.ToUpper().Contains("ACK"))
{
branch.Transaction = Transaction.CreateClient(Stack, this, request, Stack.Transport, target.HostPort());
branch.Request = request;
_branches.Add(branch);
}
else
{
Stack.Send(request, target.HostPort());
}
}
/// <summary>
/// Creates a SIP request.
/// </summary>
/// <param name="method">The SIP method (invite etc.)</param>
/// <param name="content">The SIP body contents.</param>
/// <param name="contentType">The type of the SIP body.</param>
/// <returns>Message.</returns>
public virtual Message CreateRequest(string method, string content = "", string contentType = "")
{
Server = false;
if (RemoteParty == null)
{
Debug.Assert(false, String.Format("No remoteParty for UAC\n"));
}
if (LocalParty == null)
{
LocalParty = new Address("\"Anonymous\" <sip:[email protected]>");
}
//TODO: Use Remote Party instead of Remote Target?
SIPURI uri;
if (RemoteTarget != null)
{
uri = new SIPURI(RemoteTarget.ToString());
}
else
{
uri = new SIPURI(RemoteParty.ToString());
}
if (method == "REGISTER")
{
//TODO: Is this right ?
//uri.User = "";
}
if ((method != "ACK") && (method != "CANCEL"))
{
LocalSeq = ++LocalSeq;
}
//TODO: Use Remote Party instead of Remote Target?
Header to;
if (RemoteTarget != null)
{
to = new Header(RemoteTarget.ToString(), "To");
}
else
{
to = new Header(RemoteParty.ToString(), "To");
}
Header from = new Header(LocalParty.ToString(), "From");
from.Attributes["tag"] = LocalTag;
Header cSeq = new Header(LocalSeq + " " + method, "CSeq");
Header callId = new Header(CallID, "Call-ID");
Header maxForwards = new Header(MaxForwards.ToString(), "Max-Forwards");
Header via = Stack.CreateVia();
Dictionary <string, object> branchParams = new Dictionary <string, object>
{
{ "To", to.Value },
{ "From", @from.Value },
{ "CallId", callId.Value },
{ "CSeq", cSeq.Number }
};
via.Attributes["branch"] = Transaction.CreateBranch(branchParams, false);
if (LocalTarget == null)
{
LocalTarget = Stack.Uri.Dup();
LocalTarget.User = LocalParty.Uri.User;
}
Header contact = new Header(LocalTarget.ToString(), "Contact");
Header[] headerList = { to, from, cSeq, callId, maxForwards, via, contact };
List <Header> headers = headerList.ToList();
// Check this TODO
//
if (RouteSet.Count != 0)
{
headers.AddRange(RouteSet);
}
//app adds other headers such as Supported, Require and Proxy-Require
if (!string.IsNullOrEmpty(contentType))
{
headers.Add(new Header(contentType, "Content-Type"));
}
Dictionary <string, List <Header> > headerDict = new Dictionary <string, List <Header> >();
foreach (Header h in headers)
{
if (headerDict.ContainsKey(h.Name))
{
headerDict[h.Name].Add(h);
}
else
{
List <Header> temp = new List <Header> {
h
};
headerDict.Add(h.Name, temp);
}
}
Request = Message.CreateRequest(method, uri, headerDict, content);
return(Request);
}
/// <summary>
/// Parses the input string into a SIP message object.
/// </summary>
/// <param name="value">The value.</param>
public void Parse(string value)
{
int index = 0;
index = value.IndexOf("\r\n\r\n");
string body = "";
string firstheaders = "";
if (index == -1)
{
firstheaders = value;
Debug.Assert(false, String.Format("No message body, assuming empty\n{0}\n", value));
}
else
{
firstheaders = value.Substring(0, index);
body = value.Substring(index + 1).Trim();
}
index = firstheaders.IndexOf("\r\n");
string firstline = firstheaders.Substring(0, index);
string headers = firstheaders.Substring(index + 2);
string[] parts = firstline.Split(" ".ToCharArray(), 3);
if (parts.Length < 3)
{
Debug.Assert(false, String.Format("First line has less than 3 parts \n{0}\n", firstline));
}
int tempResponseCode = 0;
if (int.TryParse(parts[1], out tempResponseCode))
{
ResponseCode = tempResponseCode;
ResponseText = parts[2];
Protocol = parts[0];
StatusCodeType = Types.GetStatusType(ResponseCode);
}
else
{
Method = parts[0];
Uri = new SIPURI(parts[1]);
Protocol = parts[2];
}
string[] stringSeparators = new[] {"\r\n"};
foreach (string bh in headers.Split(stringSeparators, StringSplitOptions.None))
{
string h = bh.Trim();
if (Regex.IsMatch(h, @"^\s"))
{
break;
}
try
{
if (!h.StartsWith("Warning:"))
{
List<Header> createdHeaders = Header.CreateHeaders(h);
string name = createdHeaders[0].Name;
if (Headers.ContainsKey(name))
{
Headers[name].AddRange(createdHeaders);
}
else
{
Headers.Add(name, createdHeaders);
}
}
}
catch (Exception exp)
{
Debug.Assert(false, String.Format("Error parsing header {0}\n with error\n{1}", h, exp.Message));
break;
}
}
int bodylength = 0;
if (Headers.ContainsKey("Content-Length"))
{
bodylength = Convert.ToInt32(First("Content-Length").Value);
}
if (body.Length > 0)
{
Body = body;
}
Debug.Assert(Math.Abs(body.Length - bodylength) < 3,
String.Format("Invalid content-length {0} != {1}\n", body.Length, bodylength));
string[] mandatoryHeaders = {"To", "From", "CSeq", "Call-ID"};
foreach (string s in mandatoryHeaders)
{
if (!Headers.ContainsKey(s))
{
Debug.Assert(false, String.Format("Mandatory header missing {0}\n", s));
}
}
}
/// <summary>
/// Creates a SIP request message based on the passed in parameters.
/// </summary>
/// <param name="method">The SIP method to use.</param>
/// <param name="uri">The destination URI used in the first line.</param>
/// <param name="headers">The SIP headers.</param>
/// <param name="content">The SIP body content.</param>
/// <returns>Message.</returns>
public static Message CreateRequest(string method, SIPURI uri, Dictionary<string, List<Header>> headers = null,
string content = "")
{
Message m = new Message {Method = method, Uri = uri, Protocol = "SIP/2.0"};
m = PopulateMessage(m, headers, content);
if (m.Headers.ContainsKey("CSeq"))
{
Header cseq = new Header(m.First("CSeq").Number.ToString() + " " + method, "CSeq");
List<Header> cseqHeaders = new List<Header> {cseq};
m.Headers["CSeq"] = cseqHeaders;
}
return m;
}
/// <summary>
/// Handles the received response and passes it to the appropriate transaction or dialog for further handling.
/// </summary>
/// <param name="r">The received response.</param>
/// <param name="uri">The SIP URI.</param>
private void ReceivedResponse(Message r, SIPURI uri)
{
if (r.Headers.ContainsKey("Service-Route") && r.Is2XX() && r.First("CSeq").Method.Contains("REGISTER"))
{
ServiceRoute = r.Headers["Service-Route"];
foreach (Header h in ServiceRoute)
{
h.Name = "Route";
}
}
else if (r.Headers.ContainsKey("Record-Route") && r.Is2XX())
{
// TODO: FIX This ? don't need to keep building record-route ?
//InviteRecordRoute = r.Headers["Record-Route"];
//foreach (Header h in InviteRecordRoute)
//{
// h.Name = "Route";
//}
}
if (!r.Headers.ContainsKey("Via"))
{
Debug.Assert(false, String.Format("No Via header in received response \n{0}\n", r));
return;
}
string branch = r.Headers["Via"][0].Attributes["branch"];
string method = r.Headers["CSeq"][0].Method;
Transaction t = FindTransaction(Transaction.CreateId(branch, method));
if (t == null)
{
if ((method == "INVITE") && (r.Is2XX()))
{
_log.Debug("Looking for dialog with ID " + Dialog.ExtractID(r));
foreach (KeyValuePair<string, Dialog> keyValuePair in Dialogs)
{
_log.Debug("Current Dialogs " + keyValuePair.Key);
}
Dialog d = FindDialog(r);
if (d == null)
{
Debug.Assert(false, String.Format("No transaction or dialog for 2xx of INVITE \n{0}\n", r));
return;
}
else
{
d.ReceivedResponse(null, r);
}
}
else
{
Console.WriteLine("No Transaction for response...ignoring....");
//Debug.Assert(false, String.Format("No Transaction for response \n{0}\n", r.ToString()));
return;
}
}
else
{
t.ReceivedResponse(r);
return;
}
}
/// <summary>
/// Initializes the necessary objects for the class.
/// </summary>
private void Init()
{
DisplayName = "";
Uri = new SIPURI();
Wildcard = false;
}
public override UserAgent CreateServer(Message request, SIPURI uri, SIPStack stack)
{
if (request.Method != "CANCEL")
{
return new Proxy(Stack, request, true);
}
else return null;
}
/// <summary>
/// Helper function to compares this SIPURI to another specified SIPURI.
/// </summary>
/// <param name="other">The other.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
public bool Compare(SIPURI other)
{
return ((ToString().ToLower()) == (other.ToString().ToLower()));
}
public override UserAgent CreateServer(Message request, SIPURI uri, SIPStack stack)
{
if (request.Method == "INVITE")
{
return new UserAgent(Stack, request);
}
return null;
}
/// <summary>
/// Creates a SIP register request.
/// </summary>
/// <param name="aor">The address-of-record.</param>
/// <returns>Message.</returns>
public virtual Message CreateRegister(SIPURI aor)
{
if (aor != null)
{
RemoteParty = new Address(aor.ToString());
}
if (LocalParty == null)
{
LocalParty = new Address(RemoteParty.ToString());
}
Message m = CreateRequest("REGISTER");
m.InsertHeader(new Header("", "Authorization"));
return m;
}