From af279c8ed90de99ee16a0e58d60ed023e4fd14b3 Mon Sep 17 00:00:00 2001
From: Gerald Begumisa <ben_g@users.sourceforge.net>
Date: Thu, 23 Aug 2007 10:14:57 +0000
Subject: Added on-hold support for SIP sessions

git-svn-id: https://oreka.svn.sourceforge.net/svnroot/oreka/trunk@472 09dcff7a-b715-0410-9601-b79a96267cd0
---
 orkaudio/audiocaptureplugins/voip/RtpSession.cpp | 49 +++++++++++++++++++++++-
 orkaudio/audiocaptureplugins/voip/RtpSession.h   |  1 +
 orkaudio/audiocaptureplugins/voip/VoIp.cpp       |  5 +++
 3 files changed, 53 insertions(+), 2 deletions(-)

(limited to 'orkaudio')

diff --git a/orkaudio/audiocaptureplugins/voip/RtpSession.cpp b/orkaudio/audiocaptureplugins/voip/RtpSession.cpp
index 19f5fc1..91a483e 100644
--- a/orkaudio/audiocaptureplugins/voip/RtpSession.cpp
+++ b/orkaudio/audiocaptureplugins/voip/RtpSession.cpp
@@ -509,7 +509,7 @@ bool RtpSession::AddRtpPacket(RtpPacketInfoRef& rtpPacket)
 	// If we are on hold, unmark this
 	if(m_onHold)
 	{
-		logMsg =  "[" + m_trackingId + "] Going off hold due to RTP activity";
+		logMsg =  "[" + m_trackingId + "] Session going off hold due to RTP activity";
 		m_onHold = false;
 	}
 
@@ -797,7 +797,29 @@ void RtpSessions::ReportSipInvite(SipInviteInfoRef& invite)
 	if (pair != m_byIpAndPort.end())
 	{
 		// The session already exists, report the new INVITE
+
+		/*
+		 * If the sendonly attribute is present then our call is
+		 * going on hold.
+		 */
 		RtpSessionRef session = pair->second;
+
+		if(invite->m_attrSendonly)
+		{
+			session->m_onHold = true;
+			LOG4CXX_INFO(m_log, "[" + session->m_trackingId + "] SIP session going on hold");
+			return;
+		}
+		else
+		{
+			if(session->m_onHold)
+			{
+				session->m_onHold = false;
+				LOG4CXX_INFO(m_log, "[" + session->m_trackingId + "] SIP session going off hold");
+				return;
+			}
+		}
+
 		session->ReportSipInvite(invite);
 		return;
 	}
@@ -807,6 +829,28 @@ void RtpSessions::ReportSipInvite(SipInviteInfoRef& invite)
 		// The session already exists
 		RtpSessionRef session = pair->second;
 
+		/*
+		 * If the sendonly attribute is present then our call is
+		 * going on hold.
+		 */
+		if(invite->m_attrSendonly)
+		{
+			session->m_onHold = true;
+			LOG4CXX_INFO(m_log, "[" + session->m_trackingId + "] SIP session going on hold");
+			return;
+		}
+		else
+		{
+			/* If we're already on hold and sendonly is not present
+			 * then we go off hold */
+			if(session->m_onHold)
+			{
+				session->m_onHold = false;
+				LOG4CXX_INFO(m_log, "[" + session->m_trackingId + "] SIP session going off hold");
+				return;
+			}
+		}
+
 		// For now, do not report new INVITEs that have the same SIP call ID but a different media address
 		// those INVITEs are ignored altogether.
 		if(!session->m_ipAndPort.Equals(ipAndPort))
@@ -1662,7 +1706,8 @@ void RtpSessions::StartCapture(CStdString& party)
 SipInviteInfo::SipInviteInfo()
 {
 	m_fromRtpIp.s_addr = 0;
-	m_validated= false;
+	m_validated = false;
+	m_attrSendonly = false;
 }
 
 void SipInviteInfo::ToString(CStdString& string)
diff --git a/orkaudio/audiocaptureplugins/voip/RtpSession.h b/orkaudio/audiocaptureplugins/voip/RtpSession.h
index 74460ef..5475cb9 100644
--- a/orkaudio/audiocaptureplugins/voip/RtpSession.h
+++ b/orkaudio/audiocaptureplugins/voip/RtpSession.h
@@ -40,6 +40,7 @@ public:
 	CStdString m_to;
 	CStdString m_callId;
 	bool m_validated;		// true when an RTP stream has been seen for the INVITE
+	bool m_attrSendonly;		// true if the SDP has a:sendonly
 	std::map<CStdString, CStdString> m_extractedFields;
 
 	time_t m_recvTime;
diff --git a/orkaudio/audiocaptureplugins/voip/VoIp.cpp b/orkaudio/audiocaptureplugins/voip/VoIp.cpp
index 863cb6c..2db26d7 100644
--- a/orkaudio/audiocaptureplugins/voip/VoIp.cpp
+++ b/orkaudio/audiocaptureplugins/voip/VoIp.cpp
@@ -1384,6 +1384,7 @@ bool TrySipInvite(EthernetHeaderStruct* ethernetHeader, IpHeaderStruct* ipHeader
 		char* localExtensionField = memFindAfter("x-Local-Extension:", (char*)udpPayload, sipEnd);
 		char* audioField = NULL;
 		char* connectionAddressField = NULL;
+		char* attribSendonly = memFindAfter("a=sendonly", (char*)udpPayload, sipEnd);
 
 		if(fromField)
 		{
@@ -1441,6 +1442,10 @@ bool TrySipInvite(EthernetHeaderStruct* ethernetHeader, IpHeaderStruct* ipHeader
 		{
 			GrabToken(audioField, sipEnd, info->m_fromRtpPort);
 		}
+		if(attribSendonly)
+		{
+			info->m_attrSendonly = true;
+		}
 		if(connectionAddressField)
 		{
 			CStdString connectionAddress;
-- 
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