private void RemovePresenceInfo(PBXPresenceInfo presenceInfo)
{
lock (presenceDataLock)
{
presenceInfo.Status = PBXPresenceStatus.Offline;
presenceData.Remove(presenceInfo);
PerformanceCounterService.PhonesRegistered = presenceData.Count;
}
UpdateExtensionState(presenceInfo);
}
private void UpdateExtensionState(PBXPresenceInfo presenceInfo)
{
/*if (extStateService != null)
* {
* extStateService.UpdateExtensionState(true, presenceInfo.ExtensionNumber, StateEventType.PhoneStateUpdate,
* new ExtensionStateParameter(StateParameterType.PhoneStatus, (int)presenceInfo.Status),
* new ExtensionStateParameter(StateParameterType.PhonePort, presenceInfo.RemotePort),
* new ExtensionStateParameter(StateParameterType.PhoneIPAddress, presenceInfo.RemoteAddress),
* new ExtensionStateParameter(StateParameterType.PhoneDisplayName, presenceInfo.Name));
* }*/
}
private void UpdateExtensionState(PBXPresenceInfo presenceInfo)
{
/*if (extStateService != null)
{
extStateService.UpdateExtensionState(true, presenceInfo.ExtensionNumber, StateEventType.PhoneStateUpdate,
new ExtensionStateParameter(StateParameterType.PhoneStatus, (int)presenceInfo.Status),
new ExtensionStateParameter(StateParameterType.PhonePort, presenceInfo.RemotePort),
new ExtensionStateParameter(StateParameterType.PhoneIPAddress, presenceInfo.RemoteAddress),
new ExtensionStateParameter(StateParameterType.PhoneDisplayName, presenceInfo.Name));
}*/
}
private void RemovePresenceInfo(PBXPresenceInfo presenceInfo)
{
lock (presenceDataLock)
{
presenceInfo.Status = PBXPresenceStatus.Offline;
presenceData.Remove(presenceInfo);
PerformanceCounterService.PhonesRegistered = presenceData.Count;
}
UpdateExtensionState(presenceInfo);
}
void ProcessRegister(PreprocessSipRequestEventArgs e)
{
e.Handled = true;
bool isNewRegistration = false;
// Remove the Record-Route field as per RFC-3261 10.3
if (e.Request.HeaderFields.Contains("Record-Route", null))
e.Request.HeaderFields.Remove("Record-Route");
try
{
SIPURI addressOfRecord = new SIPURI(e.Request.HeaderFields["To", "t"].FieldValue);
// Make sure the request is authorized
if (ProcessRequestAuthorization(e, addressOfRecord, false))
{
int extensionNumber = 0;
try
{
extensionNumber = Convert.ToInt32(addressOfRecord.User);
}
catch
{
ipClient.SendSipResponse(e.Request.CreateResponse(404, "Not Found"));
return;
}
PBXPresenceInfo presenceInfo = FindPresenceInfo(extensionNumber, e.Request.SentFrom, e.Request.SentFromPort, true);
if (e.Request.HeaderFields.Contains("Contact", "m"))
{
HeaderField[] contactFields = e.Request.HeaderFields.GetMultiHeaderFields("Contact", "m");
bool containsStar = false;
foreach (HeaderField contactField in contactFields)
{
if (contactField.FieldValue == "*")
{
containsStar = true;
}
}
if (containsStar)
{
if (contactFields.Length > 1 || !e.Request.HeaderFields.Contains("Expires", null) || e.Request.HeaderFields["Expires", null].FieldValue.Trim() != "0")
{
ipClient.SendSipResponse(e.Request.CreateResponse(400, "Invalid Request"));
return;
}
}
int requestedExpiration = 0;
if (contactFields[0].ContainsParameter("Expires"))
requestedExpiration = Convert.ToInt32(contactFields[0].Parameters["Expires"]);
else if (e.Request.HeaderFields.Contains("Expires", null))
requestedExpiration = Convert.ToInt32(e.Request.HeaderFields["Expires", null].FieldValue);
else
requestedExpiration = Properties.Settings.Default.PresenceTimeout;
if (presenceInfo != null)
{
// Check the Call-ID
string callID = e.Request.HeaderFields["Call-ID", "i"].FieldValue;
if (callID == presenceInfo.SessionID)
{
// Parse our CSeq
int cSeq = Convert.ToInt32(e.Request.HeaderFields["CSeq", null].FieldValue.Split(' ')[0]);
if (cSeq < presenceInfo.CSeq)
{
RemovePresenceInfo(presenceInfo);
ipClient.SendSipResponse(e.Request.CreateResponse(400, "Invalid Request"));
return;
}
}
if (requestedExpiration == 0)
{
RemovePresenceInfo(presenceInfo);
ipClient.SendSipResponse(e.Request.CreateResponse(200, "OK"));
return;
}
}
else
{
presenceInfo = new PBXPresenceInfo();
isNewRegistration = true;
}
presenceInfo.AddressOfRecord = new SIPURI(e.Request.HeaderFields["To", "t"].FieldValue).BasicURIStringWithoutParameters;
presenceInfo.CSeq = Convert.ToInt32(e.Request.HeaderFields["CSeq", null].FieldValue.Split(' ')[0]);
presenceInfo.ExpiresInSeconds = requestedExpiration;
presenceInfo.ExtensionNumber = extensionNumber;
presenceInfo.LastRegistration = DateTime.Now;
presenceInfo.Name = addressOfRecord.DisplayName;
presenceInfo.RemoteAddress = e.Request.SentFrom;
presenceInfo.RemotePort = e.Request.SentFromPort;
presenceInfo.SessionID = e.Request.HeaderFields["Call-ID", "i"].FieldValue;
presenceInfo.Status = PBXPresenceStatus.Online;
if (isNewRegistration)
{
lock (presenceDataLock)
{
presenceData.Add(presenceInfo);
LoggingService.AddLogEntry(WOSI.CallButler.ManagementInterface.LogLevel.Extended, "Extension " + presenceInfo.ExtensionNumber + " registered for " + presenceInfo.RemoteAddress, false);
UpdateExtensionState(presenceInfo);
}
}
}
if (presenceInfo != null)
{
SipResponse response = e.Request.CreateResponse(200, "OK");
response.HeaderFields.InsertAfter("CSeq", e.Request.HeaderFields["Contact", "m"]);
response.HeaderFields["Contact", "m"].Parameters["expires"] = presenceInfo.ExpiresInSeconds.ToString();
response.HeaderFields.InsertAfter("Contact", "Date", DateTime.Now.ToUniversalTime().ToString("ddd, d MMM yyyy HH:mm:ss G\\MT"));
ipClient.SendSipResponse(response);
// Send our message waiting notification
if(isNewRegistration)
SendMessageWaitingNotification(extensionNumber);
PerformanceCounterService.PhonesRegistered = presenceData.Count;
}
else
{
ipClient.SendSipResponse(e.Request.CreateResponse(404, "Not Found"));
}
return;
}
}
catch (Exception ex)
{
ipClient.SendSipResponse(e.Request.CreateResponse(500, "Server Error"));
LoggingService.AddLogEntry(WOSI.CallButler.ManagementInterface.LogLevel.ErrorsOnly, Utils.ErrorUtils.FormatErrorString(ex), true);
}
}
void ProcessRegister(PreprocessSipRequestEventArgs e)
{
e.Handled = true;
bool isNewRegistration = false;
// Remove the Record-Route field as per RFC-3261 10.3
if (e.Request.HeaderFields.Contains("Record-Route", null))
{
e.Request.HeaderFields.Remove("Record-Route");
}
try
{
SIPURI addressOfRecord = new SIPURI(e.Request.HeaderFields["To", "t"].FieldValue);
// Make sure the request is authorized
if (ProcessRequestAuthorization(e, addressOfRecord, false))
{
int extensionNumber = 0;
try
{
extensionNumber = Convert.ToInt32(addressOfRecord.User);
}
catch
{
ipClient.SendSipResponse(e.Request.CreateResponse(404, "Not Found"));
return;
}
PBXPresenceInfo presenceInfo = FindPresenceInfo(extensionNumber, e.Request.SentFrom, e.Request.SentFromPort, true);
if (e.Request.HeaderFields.Contains("Contact", "m"))
{
HeaderField[] contactFields = e.Request.HeaderFields.GetMultiHeaderFields("Contact", "m");
bool containsStar = false;
foreach (HeaderField contactField in contactFields)
{
if (contactField.FieldValue == "*")
{
containsStar = true;
}
}
if (containsStar)
{
if (contactFields.Length > 1 || !e.Request.HeaderFields.Contains("Expires", null) || e.Request.HeaderFields["Expires", null].FieldValue.Trim() != "0")
{
ipClient.SendSipResponse(e.Request.CreateResponse(400, "Invalid Request"));
return;
}
}
int requestedExpiration = 0;
if (contactFields[0].ContainsParameter("Expires"))
{
requestedExpiration = Convert.ToInt32(contactFields[0].Parameters["Expires"]);
}
else if (e.Request.HeaderFields.Contains("Expires", null))
{
requestedExpiration = Convert.ToInt32(e.Request.HeaderFields["Expires", null].FieldValue);
}
else
{
requestedExpiration = Properties.Settings.Default.PresenceTimeout;
}
if (presenceInfo != null)
{
// Check the Call-ID
string callID = e.Request.HeaderFields["Call-ID", "i"].FieldValue;
if (callID == presenceInfo.SessionID)
{
// Parse our CSeq
int cSeq = Convert.ToInt32(e.Request.HeaderFields["CSeq", null].FieldValue.Split(' ')[0]);
if (cSeq < presenceInfo.CSeq)
{
RemovePresenceInfo(presenceInfo);
ipClient.SendSipResponse(e.Request.CreateResponse(400, "Invalid Request"));
return;
}
}
if (requestedExpiration == 0)
{
RemovePresenceInfo(presenceInfo);
ipClient.SendSipResponse(e.Request.CreateResponse(200, "OK"));
return;
}
}
else
{
presenceInfo = new PBXPresenceInfo();
isNewRegistration = true;
}
presenceInfo.AddressOfRecord = new SIPURI(e.Request.HeaderFields["To", "t"].FieldValue).BasicURIStringWithoutParameters;
presenceInfo.CSeq = Convert.ToInt32(e.Request.HeaderFields["CSeq", null].FieldValue.Split(' ')[0]);
presenceInfo.ExpiresInSeconds = requestedExpiration;
presenceInfo.ExtensionNumber = extensionNumber;
presenceInfo.LastRegistration = DateTime.Now;
presenceInfo.Name = addressOfRecord.DisplayName;
presenceInfo.RemoteAddress = e.Request.SentFrom;
presenceInfo.RemotePort = e.Request.SentFromPort;
presenceInfo.SessionID = e.Request.HeaderFields["Call-ID", "i"].FieldValue;
presenceInfo.Status = PBXPresenceStatus.Online;
if (isNewRegistration)
{
lock (presenceDataLock)
{
presenceData.Add(presenceInfo);
LoggingService.AddLogEntry(WOSI.CallButler.ManagementInterface.LogLevel.Extended, "Extension " + presenceInfo.ExtensionNumber + " registered for " + presenceInfo.RemoteAddress, false);
UpdateExtensionState(presenceInfo);
}
}
}
if (presenceInfo != null)
{
SipResponse response = e.Request.CreateResponse(200, "OK");
response.HeaderFields.InsertAfter("CSeq", e.Request.HeaderFields["Contact", "m"]);
response.HeaderFields["Contact", "m"].Parameters["expires"] = presenceInfo.ExpiresInSeconds.ToString();
response.HeaderFields.InsertAfter("Contact", "Date", DateTime.Now.ToUniversalTime().ToString("ddd, d MMM yyyy HH:mm:ss G\\MT"));
ipClient.SendSipResponse(response);
// Send our message waiting notification
if (isNewRegistration)
{
SendMessageWaitingNotification(extensionNumber);
}
PerformanceCounterService.PhonesRegistered = presenceData.Count;
}
else
{
ipClient.SendSipResponse(e.Request.CreateResponse(404, "Not Found"));
}
return;
}
}
catch (Exception ex)
{
ipClient.SendSipResponse(e.Request.CreateResponse(500, "Server Error"));
LoggingService.AddLogEntry(WOSI.CallButler.ManagementInterface.LogLevel.ErrorsOnly, Utils.ErrorUtils.FormatErrorString(ex), true);
}
}