/// <summary>
/// Processes a dialplan script (currently Ruby scripts only) for a received SIP INVITE request.
/// </summary>
/// <param name="coreLogDelegate">A function delegate that passes log/diagnostics events back to the SIP Proxy Core.</param>
/// <param name="createBridgeDelegate">A function delegate that is called in the event that the dial plan command results in a call being answered and a bridge needing to be created.</param>
/// <param name="localEndPoint">The SIP Proxy socket the request was received on.</param>
/// <param name="remoteEndPoint">The socket the request was recevied from.</param>
/// <param name="clientTransaction">The SIP Invite transaction that initiated the dial plan processing.</param>
/// <param name="canonicalFromDomain">If (and only if) the call is an outgoing call this will be set to the canonical domain of the host in the SIP From
/// header. An outgoing call is one from an authenticated user destined for an external SIP URI. If the call is an incoming this will be null.</param>
/// <param name="canonicalToDomain">If (and only if) the call is an incoming call this will be set to the canonical domain of the host in the SIP URI
/// request. An incoming call is one from an external caller to a URI corresponding to a hosted domain on this SIP Proxy.</param>
private void ExecuteDialPlanScript(
DialPlanScriptContext dialPlanContext,
ISIPServerUserAgent uas,
SIPCallDirection callDirection,
DialogueBridgeCreatedDelegate createBridgeDelegate,
ISIPCallManager callManager)
{
try
{
if (uas == null)
{
throw new ArgumentNullException("The ISIPServerUserAgent parameter cannot be null when attempting to execute a dialplan script.");
}
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.NewCall, "Executing script dial plan for call to " + uas.CallDestination + ".", dialPlanContext.Owner));
if (!dialPlanContext.DialPlanScript.IsNullOrBlank())
{
DialPlanExecutingScript dialPlanExecutionScript = null;
int runningScriptCount = (from script in m_runningScripts where !script.Complete select script).Count();
if (runningScriptCount < MAX_ALLOWED_SCRIPTSCOPES)
{
m_dialPlanScriptContextsCreated++;
//FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Creating DialPlanExecutingScript number " + m_dialPlanScriptContextsCreated + " for dialplan execution for script owned by " + dialPlanContext.Owner + ".", null));
dialPlanExecutionScript = new DialPlanExecutingScript(FireProxyLogEvent);
}
else
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Running script limit of " + MAX_ALLOWED_SCRIPTSCOPES + " reached.", null));
lock (m_runningScripts)
{
foreach (DialPlanExecutingScript runningScript in m_runningScripts)
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, " running script owner=" + runningScript.Owner + ", dialplan name=" + runningScript.ExecutingDialPlanContext.SIPDialPlan.DialPlanName + ", start time=" + runningScript.StartTime.ToString("dd MMM yyyy HH:mm:ss") + ", is complete=" + runningScript.Complete + ".", null));
}
}
}
if (dialPlanExecutionScript != null)
{
dialPlanExecutionScript.Initialise(dialPlanContext);
DialPlanScriptFacade planFacade = new DialPlanScriptFacade(
m_sipTransport,
dialPlanExecutionScript,
FireProxyLogEvent,
createBridgeDelegate,
(uas.CallRequest != null) ? uas.CallRequest.Copy() : null, // A different copy to the req object. Stops inadvertent changes in the dialplan.
callDirection,
dialPlanContext,
GetCanonicalDomainDelegate_External,
callManager,
m_sipSorceryPersistor,
m_outboundProxySocket,
this);
DialPlanCRMFacade crmFacade = new DialPlanCRMFacade(FireProxyLogEvent, dialPlanContext);
DialPlanLookupFacade lookupFacade = new DialPlanLookupFacade(FireProxyLogEvent, dialPlanContext.Owner);
ScriptScope rubyScope = dialPlanExecutionScript.DialPlanScriptScope;
rubyScope.SetVariable(SCRIPT_HELPEROBJECT_NAME, planFacade);
rubyScope.SetVariable(SCRIPT_CRMOBJECT_NAME, crmFacade);
rubyScope.SetVariable(SCRIPT_LOOKUPOBJECT_NAME, lookupFacade);
if (uas.CallRequest != null)
{
rubyScope.SetVariable(SCRIPT_REQUESTOBJECT_NAME, uas.CallRequest.Copy());
}
dialPlanExecutionScript.DialPlanScriptThread = new Thread(new ParameterizedThreadStart(delegate { ExecuteScript(dialPlanExecutionScript, dialPlanContext, planFacade, m_rubyScriptCommon + dialPlanContext.DialPlanScript); }));
lock (m_runningScripts)
{
m_runningScripts.Add(dialPlanExecutionScript);
}
dialPlanExecutionScript.DialPlanScriptThread.Start();
}
else
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.Error, "Error processing call " + uas.CallDestination + " there were no script slots available, script could not be executed.", dialPlanContext.Owner));
dialPlanContext.CallFailed(SIPResponseStatusCodesEnum.InternalServerError, "Dial plan script engine was overloaded", null);
}
}
else
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "A script dial plan was empty, execution cannot continue.", dialPlanContext.Owner));
dialPlanContext.CallFailed(SIPResponseStatusCodesEnum.InternalServerError, "Dial plan script was empty", null);
}
}
catch (Exception excp)
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.Error, "Error executing script dialplan for " + uas.CallDestination + ". " + excp.Message, dialPlanContext.Owner));
dialPlanContext.CallFailed(SIPResponseStatusCodesEnum.InternalServerError, "Dial plan exception starting script", null);
}
}
/// <summary>
/// Processes a dialplan script (currently Ruby scripts only) for a received SIP INVITE request.
/// </summary>
/// <param name="coreLogDelegate">A function delegate that passes log/diagnostics events back to the SIP Proxy Core.</param>
/// <param name="createBridgeDelegate">A function delegate that is called in the event that the dial plan command results in a call being answered and a bridge needing to be created.</param>
/// <param name="localEndPoint">The SIP Proxy socket the request was received on.</param>
/// <param name="remoteEndPoint">The socket the request was recevied from.</param>
/// <param name="clientTransaction">The SIP Invite transaction that initiated the dial plan processing.</param>
/// <param name="canonicalFromDomain">If (and only if) the call is an outgoing call this will be set to the canonical domain of the host in the SIP From
/// header. An outgoing call is one from an authenticated user destined for an external SIP URI. If the call is an incoming this will be null.</param>
/// <param name="canonicalToDomain">If (and only if) the call is an incoming call this will be set to the canonical domain of the host in the SIP URI
/// request. An incoming call is one from an external caller to a URI corresponding to a hosted domain on this SIP Proxy.</param>
private void ExecuteDialPlanScript(
DialPlanScriptContext dialPlanContext,
ISIPServerUserAgent uas,
SIPCallDirection callDirection,
DialogueBridgeCreatedDelegate createBridgeDelegate,
ISIPCallManager callManager)
{
try
{
if (uas == null)
{
throw new ArgumentNullException("The ISIPServerUserAgent parameter cannot be null when attempting to execute a dialplan script.");
}
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.NewCall, "Executing script dial plan for call to " + uas.CallDestination + ".", dialPlanContext.Owner));
if (!dialPlanContext.DialPlanScript.IsNullOrBlank())
{
DialPlanExecutingScript dialPlanExecutionScript = null;
int runningScriptCount = (from script in m_runningScripts where !script.Complete select script).Count();
if (runningScriptCount < MAX_ALLOWED_SCRIPTSCOPES)
{
m_dialPlanScriptContextsCreated++;
//FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Creating DialPlanExecutingScript number " + m_dialPlanScriptContextsCreated + " for dialplan execution for script owned by " + dialPlanContext.Owner + ".", null));
dialPlanExecutionScript = new DialPlanExecutingScript(FireProxyLogEvent);
}
else
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "Running script limit of " + MAX_ALLOWED_SCRIPTSCOPES + " reached.", null));
lock (m_runningScripts)
{
foreach (DialPlanExecutingScript runningScript in m_runningScripts)
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, " running script owner=" + runningScript.Owner + ", dialplan name=" + runningScript.ExecutingDialPlanContext.SIPDialPlan.DialPlanName + ", start time=" + runningScript.StartTime.ToString("dd MMM yyyy HH:mm:ss") + ", is complete=" + runningScript.Complete + ".", null));
}
}
}
if (dialPlanExecutionScript != null)
{
dialPlanExecutionScript.Initialise(dialPlanContext);
DialPlanScriptFacade planFacade = new DialPlanScriptFacade(
m_sipTransport,
dialPlanExecutionScript,
FireProxyLogEvent,
createBridgeDelegate,
(uas.CallRequest != null) ? uas.CallRequest.Copy() : null, // A different copy to the req object. Stops inadvertent changes in the dialplan.
callDirection,
dialPlanContext,
GetCanonicalDomainDelegate_External,
callManager,
m_sipSorceryPersistor,
m_outboundProxySocket,
this);
DialPlanCRMFacade crmFacade = new DialPlanCRMFacade(FireProxyLogEvent, dialPlanContext);
DialPlanLookupFacade lookupFacade = new DialPlanLookupFacade(FireProxyLogEvent, dialPlanContext.Owner);
ScriptScope rubyScope = dialPlanExecutionScript.DialPlanScriptScope;
rubyScope.SetVariable(SCRIPT_HELPEROBJECT_NAME, planFacade);
rubyScope.SetVariable(SCRIPT_CRMOBJECT_NAME, crmFacade);
rubyScope.SetVariable(SCRIPT_LOOKUPOBJECT_NAME, lookupFacade);
if (uas.CallRequest != null)
{
rubyScope.SetVariable(SCRIPT_REQUESTOBJECT_NAME, uas.CallRequest.Copy());
}
dialPlanExecutionScript.DialPlanScriptThread = new Thread(new ParameterizedThreadStart(delegate { ExecuteScript(dialPlanExecutionScript, dialPlanContext, planFacade, m_rubyScriptCommon + dialPlanContext.DialPlanScript); }));
lock (m_runningScripts)
{
m_runningScripts.Add(dialPlanExecutionScript);
}
dialPlanExecutionScript.DialPlanScriptThread.Start();
}
else
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.Error, "Error processing call " + uas.CallDestination + " there were no script slots available, script could not be executed.", dialPlanContext.Owner));
dialPlanContext.CallFailed(SIPResponseStatusCodesEnum.InternalServerError, "Dial plan script engine was overloaded", null);
}
}
else
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.DialPlan, "A script dial plan was empty, execution cannot continue.", dialPlanContext.Owner));
dialPlanContext.CallFailed(SIPResponseStatusCodesEnum.InternalServerError, "Dial plan script was empty", null);
}
}
catch (Exception excp)
{
FireProxyLogEvent(new SIPMonitorConsoleEvent(SIPMonitorServerTypesEnum.AppServer, SIPMonitorEventTypesEnum.Error, "Error executing script dialplan for " + uas.CallDestination + ". " + excp.Message, dialPlanContext.Owner));
dialPlanContext.CallFailed(SIPResponseStatusCodesEnum.InternalServerError, "Dial plan exception starting script", null);
}
}