public void OnRequest(SipRequestLine requestLine)
{
if (_logger.IsDebugEnabled)
_logger.Debug("OnRequest called. Method:'{0}', Uri:'{1}'", requestLine.Method, requestLine.Uri.FormatToString());
_message = _messageFactory.CreateRequest(requestLine);
}
public SipParser2(SipMessageFactory messageFactory, SipHeaderFactory headerFactory)
{
_logger.Trace("Constructor called.");
_messageFactory = messageFactory;
_headerFactory = headerFactory;
_message = null;
}
public void OnResponse(SipStatusLine statusLine)
{
if (_logger.IsDebugEnabled)
_logger.Debug("OnResponse called. StatusCode:'{0}', ReasonPhrase:'{1}'", statusLine.StatusCode, statusLine.ReasonPhrase);
_message = _messageFactory.CreateResponse(statusLine);
}
private void OnFirstLine(string firstLine)
{
if (_logger.IsDebugEnabled)
_logger.Debug("OnFirstLine called. firstLine:'{0}'", firstLine);
if (firstLine.EndsWith(SipConstants.SipTwoZeroString))
{
if (_logger.IsDebugEnabled)
_logger.Debug("Firstline is expected to be a SipRequestLine. Try parsing...");
var requestLine = new SipRequestLineParser().Parse(firstLine);
_message = _messageFactory.CreateRequest(requestLine);
if (_logger.IsDebugEnabled)
_logger.Debug("RequestLine parsed. Continuing SipRequest parsing...");
}
else if (firstLine.StartsWith(SipConstants.SipTwoZeroString))
{
if (_logger.IsDebugEnabled)
_logger.Debug("Firstline is expected to be a SipStatusLine. Try parsing...");
var statusLine = new SipStatusLineParser().Parse(firstLine);
_message = _messageFactory.CreateResponse(statusLine);
if (_logger.IsDebugEnabled)
_logger.Debug("SipStatusLine parsed. Continuing SipResponse parsing..");
}
else
{
if (_logger.IsDebugEnabled)
_logger.Debug("Firstline format could not be recognized.");
throw new ParseException(ExceptionMessage.InvalidFirstLineFormat);
}
}
public void OnRequest(SipRequestLine requestLine)
{
if (_logger.IsDebugEnabled)
{
_logger.Debug("OnRequest called. Method:'{0}', Uri:'{1}'", requestLine.Method, requestLine.Uri.FormatToString());
}
_message = _messageFactory.CreateRequest(requestLine);
}
public void OnResponse(SipStatusLine statusLine)
{
if (_logger.IsDebugEnabled)
{
_logger.Debug("OnResponse called. StatusCode:'{0}', ReasonPhrase:'{1}'", statusLine.StatusCode, statusLine.ReasonPhrase);
}
_message = _messageFactory.CreateResponse(statusLine);
}
internal static string GetDialogId(SipMessage message, bool isServer)
{
Check.Require(message, "message");
string localTag = isServer ? message.To.Tag : message.From.Tag;
string remoteTag = isServer ? message.From.Tag : message.To.Tag;
return(message.CallId.Value + ":" + localTag + ":" + remoteTag);
}
private string FindFirstMissingRequiredHeader(SipMessage sipMessage)
{
if (sipMessage.CallId == null) return SipHeaderNames.CallId;
if (sipMessage.CSeq == null) return SipHeaderNames.CSeq;
if (sipMessage.MaxForwards == null) return SipHeaderNames.MaxForwards;
if (sipMessage.To == null) return SipHeaderNames.To;
if (sipMessage.From == null) return SipHeaderNames.From;
if (sipMessage.Vias == null || sipMessage.Vias.Count == 0) return SipHeaderNames.Via;
return null;
}
private SipContext CreateSipContext(SipMessage message, Datagram datagram)
{
var request = message as SipRequest;
var response = message as SipResponse;
var c = new SipContext();
c.Request = request;
c.Response = response;
c.RemoteEndPoint = datagram.RemoteEndPoint;
c.LocalEndPoint = datagram.LocalEndPoint;
return c;
}
private static void FormatHeaders(SipMessage message, StringBuilder b)
{
foreach (var header in message.GetHeaders())
{
if (header.IsList)
{
b.Append(FormatHeader((IEnumerable <SipHeader>)header));
}
else
{
b.Append(FormatHeader((SipHeader)header));
}
}
}
private void OnFirstLine(string firstLine)
{
if (_logger.IsDebugEnabled)
{
_logger.Debug("OnFirstLine called. firstLine:'{0}'", firstLine);
}
if (firstLine.EndsWith(SipConstants.SipTwoZeroString))
{
if (_logger.IsDebugEnabled)
{
_logger.Debug("Firstline is expected to be a SipRequestLine. Try parsing...");
}
var requestLine = new SipRequestLineParser().Parse(firstLine);
_message = _messageFactory.CreateRequest(requestLine);
if (_logger.IsDebugEnabled)
{
_logger.Debug("RequestLine parsed. Continuing SipRequest parsing...");
}
}
else if (firstLine.StartsWith(SipConstants.SipTwoZeroString))
{
if (_logger.IsDebugEnabled)
{
_logger.Debug("Firstline is expected to be a SipStatusLine. Try parsing...");
}
var statusLine = new SipStatusLineParser().Parse(firstLine);
_message = _messageFactory.CreateResponse(statusLine);
if (_logger.IsDebugEnabled)
{
_logger.Debug("SipStatusLine parsed. Continuing SipResponse parsing..");
}
}
else
{
if (_logger.IsDebugEnabled)
{
_logger.Debug("Firstline format could not be recognized.");
}
throw new ParseException(ExceptionMessage.InvalidFirstLineFormat);
}
}
public static byte[] FormatMessage(SipMessage message)
{
var envelope = FormatMessageEnvelope(message, true);
var msg = SipUtil.ToUtf8Bytes(envelope);
if (message.Body == null)
{
return(msg);
}
var bytes = new List <byte>(msg);
bytes.AddRange(message.Body);
return(bytes.ToArray());
}
public static string FormatMessageEnvelope(SipMessage message, bool isNewlineTerminated = false)
{
var b = new StringBuilder();
if (message is SipRequest)
{
b.AppendLine(((SipRequest)message).RequestLine.FormatToString());
}
else
{
b.AppendLine(((SipResponse)message).StatusLine.FormatToString());
}
FormatHeaders(message, b);
if (isNewlineTerminated)
{
b.AppendLine(string.Empty);
}
return(b.ToString());
}
public ValidateMessageResult ValidateMessage(SipMessage message)
{
//testing commit
if(message is SipRequest)
{
var request = message as SipRequest;
var result = new ValidateRequestResult();
result.MissingRequiredHeader = FindFirstMissingRequiredHeader(message);
result.HasUnSupportedSipVersion = !ValidateSipVersion(request.RequestLine.Version);
if (result.HasRequiredHeadersMissing) return result;
result.HasInvalidSCeqMethod = !ValidateCSeqMethod(request);
result.InviteHasNoContactHeader = !ValidateContactHeader(request);
return result;
}
else
{
var response = message as SipResponse;
var result = new ValidateMessageResult();
result.MissingRequiredHeader = FindFirstMissingRequiredHeader(message);
result.HasUnSupportedSipVersion = !ValidateSipVersion(response.StatusLine.Version);
return result;
}
}
internal static string GetClientTransactionId(SipMessage message)
{
/*concatenate branch and command. Branch only does not suffice bc CANCEL request have the same branch as the request they need to cancel. To cover id-uniqueness
* also for CANCEL requests, we add the Cseq Command.*/
return message.Vias.GetTopMost().Branch + "-" + message.CSeq.Command;
}
internal static string GetClientTransactionId(SipMessage message)
{
/*concatenate branch and command. Branch only does not suffice bc CANCEL request have the same branch as the request they need to cancel. To cover id-uniqueness
* also for CANCEL requests, we add the Cseq Command.*/
return(message.Vias.GetTopMost().Branch + "-" + message.CSeq.Command);
}
internal static string GetDialogId(SipMessage message, bool isServer)
{
Check.Require(message, "message");
string localTag = isServer ? message.To.Tag : message.From.Tag;
string remoteTag = isServer ? message.From.Tag : message.To.Tag;
return message.CallId.Value + ":" + localTag + ":" + remoteTag;
}
private SipContext CreateSipContext(SipMessage message, Datagram datagram)
{
var request = message as SipRequest;
var response = message as SipResponse;
if (request != null)
{
_logger.Debug("Request Received '" + request.RequestLine.Method + " " + request.RequestLine.Uri.FormatToString() + "' from " +
datagram.RemoteEndPoint);
}
else
{
_logger.Debug("Response Received '" + response.StatusLine.StatusCode + " " + response.StatusLine.ReasonPhrase + "' from " +
datagram.RemoteEndPoint);
}
var c = new SipContext();
_logger.Trace("Parse on parser context completed.");
c.Request = request;
c.Response = response;
c.RemoteEndPoint = datagram.RemoteEndPoint;
c.LocalEndPoint = datagram.LocalEndPoint;
return c;
}
