/// <summary>
/// Parses SIP_Response from stream.
/// </summary>
/// <param name="stream">Stream what contains valid SIP response.</param>
/// <returns>Returns parsed SIP_Response obeject.</returns>
/// <exception cref="ArgumentNullException">Raised when <b>stream</b> is null.</exception>
/// <exception cref="SIP_ParseException">Raised when invalid SIP message.</exception>
public static SIP_Response Parse(Stream stream)
{
/* Syntax:
* SIP-Version SP Status-Code SP Reason-Phrase
* SIP-Message
*/
if (stream == null)
{
throw new ArgumentNullException("stream");
}
SIP_Response retVal = new SIP_Response();
// Parse Response-line
StreamLineReader r = new StreamLineReader(stream);
r.Encoding = "utf-8";
string[] version_code_text = r.ReadLineString().Split(new char[] { ' ' }, 3);
if (version_code_text.Length != 3)
{
throw new SIP_ParseException("Invalid SIP Status-Line syntax ! Syntax: {SIP-Version SP Status-Code SP Reason-Phrase}.");
}
// SIP-Version
try{
retVal.SipVersion = Convert.ToDouble(version_code_text[0].Split('/')[1], System.Globalization.NumberFormatInfo.InvariantInfo);
}
catch {
throw new SIP_ParseException("Invalid Status-Line SIP-Version value !");
}
// Status-Code
try{
retVal.StatusCode = Convert.ToInt32(version_code_text[1]);
}
catch {
throw new SIP_ParseException("Invalid Status-Line Status-Code value !");
}
// Reason-Phrase
retVal.ReasonPhrase = version_code_text[2];
// Parse SIP-Message
retVal.InternalParse(stream);
return(retVal);
}
