public static List <IPEndPoint> ParseIPSockets(XmlNode socketNodes)
{
List <IPEndPoint> endPoints = new List <IPEndPoint>();
List <IPAddress> localAddresses = GetLocalIPv4Addresses();
foreach (XmlNode socketNode in socketNodes.ChildNodes)
{
string socketString = socketNode.InnerText;
Logger.Logger.Debug("Parsing end point from socket string " + socketString + ".");
int port = IPSocket.ParsePortFromSocket(socketString);
if (socketString.StartsWith(ALL_LOCAL_IPADDRESSES_KEY))
{
foreach (IPAddress ipAddress in localAddresses)
{
endPoints.Add(new IPEndPoint(ipAddress, port));
}
}
else
{
endPoints.Add(IPSocket.ParseSocketString(socketString));
}
}
return(endPoints);
}
private static IEnumerable <SIPEndPoint> GetSIPEndPoints(string sipSocketString, SIPProtocolsEnum sipProtocol, int overridePort)
{
if (sipSocketString == null)
{
return(null);
}
int port;
if (overridePort > 0)
{
port = overridePort;
}
else
{
port = IPSocket.ParsePortFromSocket(sipSocketString);
if (port == 0)
{
port = (sipProtocol == SIPProtocolsEnum.tls) ? m_defaultSIPTLSPort : m_defaultSIPPort;
}
}
if (sipSocketString.StartsWith(m_allIPAddresses))
{
return(m_localIPAddresses.Select(x => new SIPEndPoint(sipProtocol, new IPEndPoint(x, port))));
}
var ipAddress = IPAddress.Parse(IPSocket.ParseHostFromSocket(sipSocketString));
return(new List <SIPEndPoint> {
new SIPEndPoint(sipProtocol, new IPEndPoint(ipAddress, port))
});
}
public void ParsePortFromSocketTest()
{
Console.WriteLine(System.Reflection.MethodBase.GetCurrentMethod().Name);
int port = IPSocket.ParsePortFromSocket("localhost:5060");
Console.WriteLine("port=" + port);
Assert.IsTrue(port == 5060, "The port was not parsed correctly.");
}
public void ParsePortFromSocketTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
int port = IPSocket.ParsePortFromSocket("localhost:5060");
logger.LogDebug("port=" + port);
Assert.True(port == 5060, "The port was not parsed correctly.");
}
private static IEnumerable <SIPEndPoint> GetSIPEndPoints(string sipSocketString, SIPProtocolsEnum sipProtocol,
int overridePort)
{
if (sipSocketString == null)
{
return(null);
}
int port;
if (overridePort > 0)
{
port = overridePort;
}
else
{
port = IPSocket.ParsePortFromSocket(sipSocketString);
if (port == 0)
{
port = (sipProtocol == SIPProtocolsEnum.tls) ? m_defaultSIPTLSPort : m_defaultSIPPort;
}
}
if (sipSocketString.StartsWith(ALL_LOCAL_IPADDRESSES_KEY))
{
return(new List <SIPEndPoint> {
new SIPEndPoint(sipProtocol, new IPEndPoint(IPAddress.Any, port))
});
}
else
{
var ipAddress = IPAddress.Parse(IPSocket.ParseHostFromSocket(sipSocketString));
return(new List <SIPEndPoint> {
new SIPEndPoint(sipProtocol, new IPEndPoint(ipAddress, port))
});
}
}
public void Start(string url)
{
_url = url;
Match urlMatch = Regex.Match(url, @"rtsp://(?<hostname>\S+?)/", RegexOptions.IgnoreCase);
if (!urlMatch.Success)
{
throw new ApplicationException("The URL provided to the RTSP client was not recognised, " + url + ".");
}
else
{
string hostname = urlMatch.Result("${hostname}");
int port = RTSP_PORT;
if (hostname.Contains(':'))
{
port = IPSocket.ParsePortFromSocket(hostname);
hostname = IPSocket.ParseHostFromSocket(hostname);
}
logger.Debug("RTSP client connecting to " + hostname + ", port " + port + ".");
_rtspConnection = new TcpClient(hostname, port);
_rtspStream = _rtspConnection.GetStream();
_rtspSession = new RTSPSession();
_rtspSession.RTPPayloadHeaderLength = _rtpPayloadHeaderLength;
_rtspSession.ReservePorts();
_rtspSession.OnRTPQueueFull += RTPQueueFull;
RTSPRequest rtspRequest = new RTSPRequest(RTSPMethodsEnum.SETUP, url);
RTSPHeader rtspHeader = new RTSPHeader(_cseq++, null);
rtspHeader.Transport = new RTSPTransportHeader()
{
ClientRTPPortRange = _rtspSession.RTPPort + "-" + _rtspSession.ControlPort
};
rtspRequest.Header = rtspHeader;
string rtspReqStr = rtspRequest.ToString();
RTSPMessage rtspMessage = null;
Debug.WriteLine(rtspReqStr);
byte[] rtspRequestBuffer = Encoding.UTF8.GetBytes(rtspReqStr);
_rtspStream.Write(rtspRequestBuffer, 0, rtspRequestBuffer.Length);
byte[] buffer = new byte[2048];
int bytesRead = _rtspStream.Read(buffer, 0, 2048);
if (bytesRead > 0)
{
Debug.WriteLine(Encoding.UTF8.GetString(buffer, 0, bytesRead));
rtspMessage = RTSPMessage.ParseRTSPMessage(buffer, null, null);
if (rtspMessage.RTSPMessageType == RTSPMessageTypesEnum.Response)
{
var setupResponse = RTSPResponse.ParseRTSPResponse(rtspMessage);
if (setupResponse.Status == RTSPResponseStatusCodesEnum.OK)
{
_rtspSession.SessionID = setupResponse.Header.Session;
_rtspSession.RemoteEndPoint = new IPEndPoint(
(_rtspConnection.Client.RemoteEndPoint as IPEndPoint).Address,
setupResponse.Header.Transport.GetServerRTPPort());
_rtspSession.Start();
logger.Debug("RTSP Response received to SETUP: " + setupResponse.Status + ", session ID " +
_rtspSession.SessionID + ", server RTP endpoint " +
_rtspSession.RemoteEndPoint + ".");
if (OnSetupSuccess != null)
{
OnSetupSuccess(this);
}
}
else
{
logger.Warn("RTSP Response received to SETUP: " + setupResponse.Status + ".");
throw new ApplicationException("An error response of " + setupResponse.Status +
" was received for an RTSP setup request.");
}
}
}
else
{
throw new ApplicationException(
"Zero bytes were read from the RTSP client socket in response to a SETUP request.");
}
}
}
// TODO: Remove this nasty code duplication with ResolveSIPService!
public static async Task <SIPDNSLookupResult> ResolveAsync(SIPURI sipURI, bool?preferIPv6 = null)
{
try
{
if (sipURI == null)
{
throw new ArgumentNullException("sipURI", "Cannot resolve SIP service on a null URI.");
}
if (IPSocket.TryParseIPEndPoint(sipURI.MAddrOrHost, out var ipEndPoint))
{
// Target is an IP address, no DNS lookup required.
SIPDNSLookupEndPoint sipLookupEndPoint = new SIPDNSLookupEndPoint(new SIPEndPoint(sipURI.Protocol, ipEndPoint), 0);
SIPDNSLookupResult result = new SIPDNSLookupResult(sipURI);
result.AddLookupResult(sipLookupEndPoint);
return(result);
}
else
{
string host = sipURI.MAddrOrHostAddress;
//int port = IPSocket.ParsePortFromSocket(host);
int port = sipURI.Protocol != SIPProtocolsEnum.tls ? m_defaultSIPPort : m_defaultSIPSPort;
if (preferIPv6 == null)
{
preferIPv6 = SIPDNSManager.PreferIPv6NameResolution;
}
bool explicitPort = false;
try
{
//Parse returns true if sipURI.Host can be parsed as an ipaddress
bool parseresult = SIPSorcery.Sys.IPSocket.Parse(sipURI.MAddrOrHost, out host, out port);
explicitPort = port >= 0;
if (!explicitPort)
{
//port = (sipURI.Scheme == SIPSchemesEnum.sip) ? m_defaultSIPPort : m_defaultSIPSPort;
port = sipURI.Protocol != SIPProtocolsEnum.tls ? m_defaultSIPPort : m_defaultSIPSPort;
}
if (parseresult == true)
{
IPAddress hostIP = IPAddress.Parse(host);
SIPDNSLookupEndPoint sipLookupEndPoint = new SIPDNSLookupEndPoint(new SIPEndPoint(sipURI.Protocol, new IPEndPoint(hostIP, port)), 0);
SIPDNSLookupResult result = new SIPDNSLookupResult(sipURI);
result.AddLookupResult(sipLookupEndPoint);
return(result);
}
}
catch (Exception ex)
{
SIPMonitorLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Unknown, SIPMonitorEventTypesEnum.DNS, "Exception SIPDNSManager ResolveSIPService (" + sipURI.ToString() + "). " + ex, null));
//rj2: if there is a parsing exception, then fallback to original sipsorcery parsing mechanism
port = IPSocket.ParsePortFromSocket(sipURI.Host);
explicitPort = port > 0;
//if(Regex.Match(host, @"^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$").Success)
if (SIPSorcery.Sys.IPSocket.IsIPAddress(host))
{
// Target is an IP address, no DNS lookup required.
IPAddress hostIP = IPAddress.Parse(host);
SIPDNSLookupEndPoint sipLookupEndPoint = new SIPDNSLookupEndPoint(new SIPEndPoint(sipURI.Protocol, new IPEndPoint(hostIP, port)), 0);
SIPDNSLookupResult result = new SIPDNSLookupResult(sipURI);
result.AddLookupResult(sipLookupEndPoint);
return(result);
}
}
if (!explicitPort)
{
//port = (sipURI.Scheme == SIPSchemesEnum.sip) ? m_defaultSIPPort : m_defaultSIPSPort;
port = sipURI.Protocol != SIPProtocolsEnum.tls ? m_defaultSIPPort : m_defaultSIPSPort;
}
if (host.Contains(".") == false || IPSocket.ParseHostFromSocket(host).EndsWith(MDNS_TLD))
{
string hostOnly = IPSocket.ParseHostFromSocket(host);
// If host is not fully qualified then assume there's no point using NAPTR or SRV record look ups and go straight to A's.
if (hostOnly.ToLower() == System.Net.Dns.GetHostName()?.ToLower())
{
// The lookup is for the current machine.
var addressList = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName()).AddressList;
if (addressList?.Length == 0)
{
return(new SIPDNSLookupResult(sipURI, $"Failed to resolve local machine hostname."));
}
else
{
// Preference for IPv4 IP address for local host name lookup.
IPAddress firstAddress = addressList.Where(x => x.AddressFamily == (preferIPv6 == true ? AddressFamily.InterNetworkV6 : AddressFamily.InterNetwork)).FirstOrDefault() ?? addressList.FirstOrDefault();
SIPEndPoint resultEp = new SIPEndPoint(sipURI.Protocol, new IPEndPoint(firstAddress, port));
return(new SIPDNSLookupResult(sipURI, resultEp));
}
}
else
{
return(await Task.Run(() => DNSNameRecordLookup(hostOnly, port, false, sipURI, null, preferIPv6)).ConfigureAwait(false));
}
}
else if (explicitPort)
{
// If target is a hostname with an explicit port then SIP lookup rules state to use DNS lookup for A or AAAA record.
host = host.Substring(0, host.LastIndexOf(':'));
return(await Task.Run(() => DNSNameRecordLookup(host, port, false, sipURI, null, preferIPv6)).ConfigureAwait(false));
}
else
{
// Target is a hostname with no explicit port, use the whole NAPTR->SRV->A lookup procedure.
SIPDNSLookupResult sipLookupResult = new SIPDNSLookupResult(sipURI);
// Do without the NAPTR lookup for the time being. Very few organisations appear to use them and it can cost up to 2.5s to get a failed resolution.
//rj2: uncomment this section for telekom 1TR118 lookup
SIPMonitorLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Unknown, SIPMonitorEventTypesEnum.DNS, "SIP DNS full lookup requested for " + sipURI.ToString() + ".", null));
DNSNAPTRRecordLookup(host, false, ref sipLookupResult);
if (sipLookupResult.Pending)
{
if (!m_inProgressSIPServiceLookups.Contains(sipURI.ToString()))
{
m_inProgressSIPServiceLookups.Add(sipURI.ToString());
//ThreadPool.QueueUserWorkItem(delegate { ResolveSIPService(sipURI, false); });
System.Threading.ThreadPool.QueueUserWorkItem((obj) => ResolveSIPService(sipURI, false, preferIPv6));
}
return(sipLookupResult);
}
return(await Task.Run(() =>
{
DNSSRVRecordLookup(sipURI.Scheme, sipURI.Protocol, host, false, ref sipLookupResult);
if (sipLookupResult.Pending)
{
//logger.LogDebug("SIPDNSManager SRV lookup for " + host + " is pending.");
return sipLookupResult;
}
else
{
//logger.LogDebug("SIPDNSManager SRV lookup for " + host + " is final.");
// Add some custom logic to cope with sips SRV records using _sips._tcp (e.g. free.call.ciscospark.com).
// By default only _sips._tls SRV records are checked for. THis block adds an additional check for _sips._tcp SRV records.
//if ((sipLookupResult.SIPSRVResults == null || sipLookupResult.SIPSRVResults.Count == 0) && sipURI.Scheme == SIPSchemesEnum.sips)
//{
// DNSSRVRecordLookup(sipURI.Scheme, SIPProtocolsEnum.tcp, host, async, ref sipLookupResult);
// SIPDNSServiceResult nextSRVRecord = sipLookupResult.GetNextUnusedSRV();
// int lookupPort = (nextSRVRecord != null) ? nextSRVRecord.Port : port;
// return DNSARecordLookup(nextSRVRecord, host, lookupPort, async, sipLookupResult.URI);
//}
//else
//{
// SIPDNSServiceResult nextSRVRecord = sipLookupResult.GetNextUnusedSRV();
// int lookupPort = (nextSRVRecord != null) ? nextSRVRecord.Port : port;
// return DNSARecordLookup(nextSRVRecord, host, lookupPort, false, sipLookupResult.URI);
//}
// The SRV record can indicate the SIP server is using a non-standard port.
SIPDNSServiceResult nextSRVRecord = sipLookupResult.GetNextUnusedSRV();
int lookupPort = (nextSRVRecord != null) ? nextSRVRecord.Port : port;
return DNSNameRecordLookup(host, lookupPort, false, sipLookupResult.URI, ref sipLookupResult, preferIPv6);
}
}).ConfigureAwait(false));
}
}
}
catch (Exception excp)
{
logger.LogError("Exception SIPDNSManager ResolveSIPService (" + sipURI.ToString() + "). " + excp.Message);
m_inProgressSIPServiceLookups.Remove(sipURI.ToString());
return(new SIPDNSLookupResult(sipURI, excp.Message));
}
}
public static SIPDNSLookupResult ResolveSIPService(SIPURI sipURI, bool async)
{
try
{
if (sipURI == null)
{
throw new ArgumentNullException("sipURI", "Cannot resolve SIP service on a null URI.");
}
if (IPSocket.TryParseIPEndPoint(sipURI.Host, out var ipEndPoint))
{
// Target is an IP address, no DNS lookup required.
SIPDNSLookupEndPoint sipLookupEndPoint = new SIPDNSLookupEndPoint(new SIPEndPoint(sipURI.Protocol, ipEndPoint), 0);
SIPDNSLookupResult result = new SIPDNSLookupResult(sipURI);
result.AddLookupResult(sipLookupEndPoint);
return(result);
}
else
{
string host = sipURI.Host;
int port = IPSocket.ParsePortFromSocket(sipURI.Host);
bool explicitPort = (port != 0);
if (!explicitPort)
{
port = (sipURI.Scheme == SIPSchemesEnum.sip) ? m_defaultSIPPort : m_defaultSIPSPort;
}
if (host.Contains(".") == false)
{
string hostOnly = IPSocket.ParseHostFromSocket(host);
// If host is not fully qualified then assume there's no point using NAPTR or SRV record look ups and go straight to A's.
if (hostOnly.ToLower() == System.Net.Dns.GetHostName()?.ToLower())
{
// The lookup is for the current machine.
var addressList = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName()).AddressList;
if (addressList?.Length == 0)
{
return(new SIPDNSLookupResult(sipURI, $"Failed to resolve local machine hostname."));
}
else
{
// Preference for IPv4 IP address for local host anem lookup.
IPAddress firstAddress = addressList.Where(x => x.AddressFamily == AddressFamily.InterNetwork).FirstOrDefault() ?? addressList.FirstOrDefault();
SIPEndPoint resultEp = new SIPEndPoint(sipURI.Protocol, new IPEndPoint(firstAddress, port));
return(new SIPDNSLookupResult(sipURI, resultEp));
}
}
else
{
return(DNSARecordLookup(hostOnly, port, async, sipURI));
}
}
else if (explicitPort)
{
// If target is a hostname with an explicit port then SIP lookup rules state to use DNS lookup for A or AAAA record.
host = host.Substring(0, host.LastIndexOf(':'));
return(DNSARecordLookup(host, port, async, sipURI));
}
else
{
// Target is a hostname with no explicit port, use the whole NAPTR->SRV->A lookup procedure.
SIPDNSLookupResult sipLookupResult = new SIPDNSLookupResult(sipURI);
// Do without the NAPTR lookup for the time being. Very few organisations appear to use them and it can cost up to 2.5s to get a failed resolution.
/*SIPMonitorLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Unknown, SIPMonitorEventTypesEnum.DNS, "SIP DNS full lookup requested for " + sipURI.ToString() + ".", null));
* DNSNAPTRRecordLookup(host, async, ref sipLookupResult);
* if (sipLookupResult.Pending)
* {
* if (!m_inProgressSIPServiceLookups.Contains(sipURI.ToString()))
* {
* m_inProgressSIPServiceLookups.Add(sipURI.ToString());
* ThreadPool.QueueUserWorkItem(delegate { ResolveSIPService(sipURI, false); });
* }
* return sipLookupResult;
* }*/
DNSSRVRecordLookup(sipURI.Scheme, sipURI.Protocol, host, async, ref sipLookupResult);
if (sipLookupResult.Pending)
{
//logger.LogDebug("SIPDNSManager SRV lookup for " + host + " is pending.");
return(sipLookupResult);
}
else
{
//logger.LogDebug("SIPDNSManager SRV lookup for " + host + " is final.");
// Add some custom logic to cope with sips SRV records using _sips._tcp (e.g. free.call.ciscospark.com).
// By default only _sips._tls SRV records are checked for. THis block adds an additional check for _sips._tcp SRV records.
//if ((sipLookupResult.SIPSRVResults == null || sipLookupResult.SIPSRVResults.Count == 0) && sipURI.Scheme == SIPSchemesEnum.sips)
//{
// DNSSRVRecordLookup(sipURI.Scheme, SIPProtocolsEnum.tcp, host, async, ref sipLookupResult);
// SIPDNSServiceResult nextSRVRecord = sipLookupResult.GetNextUnusedSRV();
// int lookupPort = (nextSRVRecord != null) ? nextSRVRecord.Port : port;
// return DNSARecordLookup(nextSRVRecord, host, lookupPort, async, sipLookupResult.URI);
//}
//else
//{
SIPDNSServiceResult nextSRVRecord = sipLookupResult.GetNextUnusedSRV();
int lookupPort = (nextSRVRecord != null) ? nextSRVRecord.Port : port;
return(DNSARecordLookup(nextSRVRecord, host, lookupPort, async, sipLookupResult.URI));
//}
}
}
}
}
catch (Exception excp)
{
logger.LogError("Exception SIPDNSManager ResolveSIPService (" + sipURI.ToString() + "). " + excp.Message);
m_inProgressSIPServiceLookups.Remove(sipURI.ToString());
return(new SIPDNSLookupResult(sipURI, excp.Message));
}
}
public static SIPDNSLookupResult ResolveSIPService(SIPURI sipURI, bool async)
{
try
{
if (sipURI == null)
{
throw new ArgumentNullException("sipURI", "Cannot resolve SIP service on a null URI.");
}
if (IPSocket.TryParseIPEndPoint(sipURI.Host, out var ipEndPoint))
{
// Target is an IP address, no DNS lookup required.
//IPAddress hostIP = IPAddress.Parse(host);
SIPDNSLookupEndPoint sipLookupEndPoint = new SIPDNSLookupEndPoint(new SIPEndPoint(sipURI.Protocol, ipEndPoint), 0);
SIPDNSLookupResult result = new SIPDNSLookupResult(sipURI);
result.AddLookupResult(sipLookupEndPoint);
return(result);
}
else
{
string host = sipURI.Host;
int port = IPSocket.ParsePortFromSocket(sipURI.Host);
bool explicitPort = (port != 0);
if (!explicitPort)
{
port = (sipURI.Scheme == SIPSchemesEnum.sip) ? m_defaultSIPPort : m_defaultSIPSPort;
}
if (explicitPort)
{
host = host.Substring(0, host.LastIndexOf(':'));
// Target is a hostname with an explicit port, DNS lookup for A or AAAA record.
return(DNSARecordLookup(host, port, async, sipURI));
}
else
{
// Target is a hostname with no explicit port, use the whole NAPTR->SRV->A lookup procedure.
SIPDNSLookupResult sipLookupResult = new SIPDNSLookupResult(sipURI);
// Do without the NAPTR lookup for the time being. Very few organisations appear to use them and it can cost up to 2.5s to get a failed resolution.
/*SIPMonitorLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.Unknown, SIPMonitorEventTypesEnum.DNS, "SIP DNS full lookup requested for " + sipURI.ToString() + ".", null));
* DNSNAPTRRecordLookup(host, async, ref sipLookupResult);
* if (sipLookupResult.Pending)
* {
* if (!m_inProgressSIPServiceLookups.Contains(sipURI.ToString()))
* {
* m_inProgressSIPServiceLookups.Add(sipURI.ToString());
* ThreadPool.QueueUserWorkItem(delegate { ResolveSIPService(sipURI, false); });
* }
* return sipLookupResult;
* }*/
DNSSRVRecordLookup(sipURI.Scheme, sipURI.Protocol, host, async, ref sipLookupResult);
if (sipLookupResult.Pending)
{
//logger.LogDebug("SIPDNSManager SRV lookup for " + host + " is pending.");
return(sipLookupResult);
}
else
{
//logger.LogDebug("SIPDNSManager SRV lookup for " + host + " is final.");
// Add some custom logic to cope with sips SRV records using _sips._tcp (e.g. free.call.ciscospark.com).
// By default only _sips._tls SRV records are checked for. THis block adds an additional check for _sips._tcp SRV records.
//if ((sipLookupResult.SIPSRVResults == null || sipLookupResult.SIPSRVResults.Count == 0) && sipURI.Scheme == SIPSchemesEnum.sips)
//{
// DNSSRVRecordLookup(sipURI.Scheme, SIPProtocolsEnum.tcp, host, async, ref sipLookupResult);
// SIPDNSServiceResult nextSRVRecord = sipLookupResult.GetNextUnusedSRV();
// int lookupPort = (nextSRVRecord != null) ? nextSRVRecord.Port : port;
// return DNSARecordLookup(nextSRVRecord, host, lookupPort, async, sipLookupResult.URI);
//}
//else
//{
SIPDNSServiceResult nextSRVRecord = sipLookupResult.GetNextUnusedSRV();
int lookupPort = (nextSRVRecord != null) ? nextSRVRecord.Port : port;
return(DNSARecordLookup(nextSRVRecord, host, lookupPort, async, sipLookupResult.URI));
//}
}
}
}
}
catch (Exception excp)
{
logger.LogError("Exception SIPDNSManager ResolveSIPService (" + sipURI.ToString() + "). " + excp.Message);
m_inProgressSIPServiceLookups.Remove(sipURI.ToString());
return(new SIPDNSLookupResult(sipURI, excp.Message));
}
}
