/// <summary>
/// Parses SIP_Request from stream.
/// </summary>
/// <param name="stream">Stream what contains valid SIP request.</param>
/// <returns>Returns parsed SIP_Request 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_Request Parse(Stream stream)
{
/* Syntax:
* SIP-Method SIP-URI SIP-Version
* SIP-Message
*/
if (stream == null)
{
throw new ArgumentNullException("stream");
}
// Parse Response-line
StreamLineReader r = new StreamLineReader(stream);
r.Encoding = "utf-8";
string[] method_uri_version = r.ReadLineString().Split(' ');
if (method_uri_version.Length != 3)
{
throw new Exception(
"Invalid SIP request data ! Method line doesn't contain: SIP-Method SIP-URI SIP-Version.");
}
SIP_Request retVal = new SIP_Request(method_uri_version[0]);
retVal.RequestLine.Uri = AbsoluteUri.Parse(method_uri_version[1]);
retVal.RequestLine.Version = method_uri_version[2];
// Parse SIP message
retVal.InternalParse(stream);
return(retVal);
}
/// <summary>
/// Parses "name-addr" or "addr-spec" from specified reader.
/// </summary>
/// <param name="reader">Reader from where to parse.</param>
/// <exception cref="ArgumentNullException">Raised when <b>reader</b> is null.</exception>
/// <exception cref="SIP_ParseException">Raised when invalid SIP message.</exception>
public void Parse(StringReader reader)
{
/* RFC 3261.
* name-addr = [ display-name ] LAQUOT addr-spec RAQUOT
* addr-spec = SIP-URI / SIPS-URI / absoluteURI
*/
if (reader == null)
{
throw new ArgumentNullException("reader");
}
reader.ReadToFirstChar();
// LAQUOT addr-spec RAQUOT
if (reader.StartsWith("<"))
{
m_pUri = AbsoluteUri.Parse(reader.ReadParenthesized());
}
else
{
// Read while we get "<","," or EOF.
StringBuilder buf = new StringBuilder();
while (true)
{
buf.Append(reader.ReadToFirstChar());
string word = reader.ReadWord();
if (string.IsNullOrEmpty(word))
{
break;
}
else
{
buf.Append(word);
}
}
reader.ReadToFirstChar();
// name-addr
if (reader.StartsWith("<"))
{
m_DisplayName = buf.ToString().Trim();
m_pUri = AbsoluteUri.Parse(reader.ReadParenthesized());
}
// addr-spec
else
{
m_pUri = AbsoluteUri.Parse(buf.ToString());
}
}
}
public void BeginRegister()
{
if (_disposed)
{
throw new ObjectDisposedException(this.GetType().Name, "不能执行注册操作。");
}
if (_regi != null)
{
_regi.Dispose();
}
string localSn = _gateway.SipNumber;
int localPort = _gateway.Port;
string remoteSn = _platform.SipNumber;
int remotePort = _platform.Port;
string remoteIP = _platform.Ip;
string user = _platform.UserName;
string pwd = _platform.Password;
string realm = _platform.Realm;
SIP_Stack stack = SipProxyWrapper.Instance.Stack;
SIP_t_NameAddress from = new SIP_t_NameAddress($"sip:{localSn}@{_localIp}:{localPort}");
SIP_t_NameAddress to = new SIP_t_NameAddress($"sip:{localSn}@{_localIp}:{localPort}");
SIP_Uri server = new SIP_Uri()
{
Host = remoteIP,
Port = remotePort,
User = remoteSn
};
string aor = $"{localSn}@{_localIp}:{localPort}";
AbsoluteUri contact = AbsoluteUri.Parse($"sip:{localSn}@" + stack.BindInfo[0].EndPoint.ToString());
SIP_UA_Registration regi = stack.CreateRegistration(server, aor, contact, 7200);
_regi = regi; //记录
regi.Credential = new NetworkCredential(user, pwd, realm);
regi.Registered += Regi_Registered;
regi.StateChanged += Regi_StateChanged;
if (_timerRegi == null)
{
_timerRegi = new Timer(timerRegi_Callback, null, 21000, Timeout.Infinite);
}
else
{
_timerRegi.Change(21000, Timeout.Infinite);
}
regi.BeginRegister(true);
}
/// <summary>
/// Parses "name-addr" or "addr-spec" from specified reader.
/// </summary>
/// <param name="reader">Reader from where to parse.</param>
/// <exception cref="ArgumentNullException">Raised when <b>reader</b> is null.</exception>
/// <exception cref="SIP_ParseException">Raised when invalid SIP message.</exception>
public void Parse(StringReader reader)
{
/* RFC 3261.
* name-addr = [ display-name ] LAQUOT addr-spec RAQUOT
* addr-spec = SIP-URI / SIPS-URI / absoluteURI
*/
if (reader == null)
{
throw new ArgumentNullException("reader");
}
reader.ReadToFirstChar();
// LAQUOT addr-spec RAQUOT
if (reader.StartsWith("<"))
{
m_pUri = AbsoluteUri.Parse(reader.ReadParenthesized());
}
else
{
string word = reader.ReadWord();
if (word == null)
{
throw new SIP_ParseException("Invalid 'name-addr' or 'addr-spec' value !");
}
reader.ReadToFirstChar();
// name-addr
if (reader.StartsWith("<"))
{
m_DisplayName = word;
m_pUri = AbsoluteUri.Parse(reader.ReadParenthesized());
}
// addr-spec
else
{
m_pUri = AbsoluteUri.Parse(word);
}
}
}
