public static RTSPTransportHeader Parse(string header)
{
var transportHeader = new RTSPTransportHeader();
if (header.NotNullOrBlank())
{
transportHeader.RawHeader = header;
string[] fields = header.Split(';');
transportHeader.TransportSpecifier = fields[0];
transportHeader.BroadcastType = fields[1];
foreach (string field in fields.Where(x => x.Contains('=')))
{
string fieldName = field.Split('=')[0];
string fieldValue = field.Split('=')[1];
switch (fieldName.ToLower())
{
case CLIENT_RTP_PORT_FIELD_NAME:
transportHeader.ClientRTPPortRange = fieldValue.Trim();
break;
case DESTINATION_FIELD_NAME:
transportHeader.Destination = fieldValue.Trim();
break;
case SERVER_RTP_PORT_FIELD_NAME:
transportHeader.ServerRTPPortRange = fieldValue.Trim();
break;
case SOURCE_FIELD_NAME:
transportHeader.Source = fieldValue.Trim();
break;
case MODE_FIELD_NAME:
transportHeader.Mode = fieldValue.Trim();
break;
default:
logger.LogWarning("An RTSP Transport header parameter was not recognised. " + field);
break;
}
}
}
return(transportHeader);
}
public static RTSPTransportHeader Parse(string header)
{
var transportHeader = new RTSPTransportHeader();
if (header.NotNullOrBlank())
{
transportHeader.RawHeader = header;
string[] fields = header.Split(';');
transportHeader.TransportSpecifier = fields[0];
transportHeader.BroadcastType = fields[1];
foreach(string field in fields.Where(x => x.Contains('=')))
{
string fieldName = field.Split('=')[0];
string fieldValue = field.Split('=')[1];
switch(fieldName.ToLower())
{
case CLIENT_RTP_PORT_FIELD_NAME:
transportHeader.ClientRTPPortRange = fieldValue.Trim();
break;
case DESTINATION_FIELD_NAME:
transportHeader.Destination = fieldValue.Trim();
break;
case SERVER_RTP_PORT_FIELD_NAME:
transportHeader.ServerRTPPortRange = fieldValue.Trim();
break;
case SOURCE_FIELD_NAME:
transportHeader.Source = fieldValue.Trim();
break;
case MODE_FIELD_NAME:
transportHeader.Mode = fieldValue.Trim();
break;
default:
logger.Warn("An RTSP Transport header parameter was not recognised. " + field);
break;
}
}
}
return transportHeader;
}
public static RTSPHeader ParseRTSPHeaders(string[] headersCollection)
{
try
{
RTSPHeader rtspHeader = new RTSPHeader();
string lastHeader = null;
for (int lineIndex = 0; lineIndex < headersCollection.Length; lineIndex++)
{
string headerLine = headersCollection[lineIndex];
if (headerLine == null || headerLine.Trim().Length == 0)
{
// No point processing blank headers.
continue;
}
string headerName = null;
string headerValue = null;
// If the first character of a line is whitespace it's a continuation of the previous line.
if (headerLine.StartsWith(" "))
{
headerName = lastHeader;
headerValue = headerLine.Trim();
}
else
{
string[] headerParts = headerLine.Trim().Split(delimiterChars, 2);
if (headerParts == null || headerParts.Length < 2)
{
logger.LogError("Invalid RTSP header, ignoring. header=" + headerLine + ".");
try
{
string errorHeaders = String.Join(m_CRLF, headersCollection);
logger.LogError("Full Invalid Headers: " + errorHeaders);
}
catch
{
}
continue;
}
headerName = headerParts[0].Trim();
headerValue = headerParts[1].Trim();
}
try
{
string headerNameLower = headerName.ToLower();
#region Accept
if (headerNameLower == RTSPHeaders.RTSP_HEADER_ACCEPT.ToLower())
{
rtspHeader.Accept = headerValue;
}
#endregion
#region ContentType
if (headerNameLower == RTSPHeaders.RTSP_HEADER_CONTENTTYPE.ToLower())
{
rtspHeader.ContentType = headerValue;
}
#endregion
#region ContentLength
if (headerNameLower == RTSPHeaders.RTSP_HEADER_CONTENTLENGTH.ToLower())
{
rtspHeader.RawCSeq = headerValue;
if (headerValue == null || headerValue.Trim().Length == 0)
{
logger.LogWarning("Invalid RTSP header, the " + RTSPHeaders.RTSP_HEADER_CONTENTLENGTH +
" was empty.");
}
else if (!Int32.TryParse(headerValue.Trim(), out rtspHeader.ContentLength))
{
logger.LogWarning("Invalid RTSP header, the " + RTSPHeaders.RTSP_HEADER_CONTENTLENGTH +
" was not a valid 32 bit integer, " + headerValue + ".");
}
}
#endregion
#region CSeq
if (headerNameLower == RTSPHeaders.RTSP_HEADER_CSEQ.ToLower())
{
rtspHeader.RawCSeq = headerValue;
if (headerValue == null || headerValue.Trim().Length == 0)
{
rtspHeader.CSeqParserError = RTSPHeaderParserError.CSeqEmpty;
logger.LogWarning("Invalid RTSP header, the " + RTSPHeaders.RTSP_HEADER_CSEQ +
" was empty.");
}
else if (!Int32.TryParse(headerValue.Trim(), out rtspHeader.CSeq))
{
rtspHeader.CSeqParserError = RTSPHeaderParserError.CSeqNotValidInteger;
logger.LogWarning("Invalid SIP header, the " + RTSPHeaders.RTSP_HEADER_CSEQ +
" was not a valid 32 bit integer, " + headerValue + ".");
}
}
#endregion
#region Session
if (headerNameLower == RTSPHeaders.RTSP_HEADER_SESSION.ToLower())
{
rtspHeader.Session = headerValue;
}
#endregion
#region Transport
if (headerNameLower == RTSPHeaders.RTSP_HEADER_TRANSPORT.ToLower())
{
rtspHeader.Transport = RTSPTransportHeader.Parse(headerValue);
}
#endregion
else
{
rtspHeader.UnknownHeaders.Add(headerLine);
}
lastHeader = headerName;
}
catch (Exception parseExcp)
{
logger.LogError("Error parsing RTSP header " + headerLine + ". " + parseExcp.Message);
throw;
}
}
//sipHeader.Valid = sipHeader.Validate(out sipHeader.ValidationError);
return(rtspHeader);
}
catch (ApplicationException)
{
throw;
}
catch (Exception excp)
{
logger.LogError("Exception ParseRTSPHeaders. " + excp.Message);
throw;
}
}
