/// <summary>
/// Default incoming call constructor.
/// </summary>
/// <param name="ua">Owner UA.</param>
/// <param name="invite">INVITE server transaction.</param>
/// <exception cref="ArgumentNullException">Is riased when <b>ua</b> or <b>invite</b> is null reference.</exception>
internal SIP_UA_Call(SIP_UA ua, SIP_ServerTransaction invite)
{
if (ua == null)
{
throw new ArgumentNullException("ua");
}
if (invite == null)
{
throw new ArgumentNullException("invite");
}
m_pUA = ua;
m_pInitialInviteTransaction = invite;
m_pLocalUri = invite.Request.To.Address.Uri;
m_pRemoteUri = invite.Request.From.Address.Uri;
m_pInitialInviteTransaction.Canceled += new EventHandler(delegate(object sender, EventArgs e){
// If transaction canceled, terminate call.
SetState(SIP_UA_CallState.Terminated);
});
// Parse SDP if INVITE contains SDP.
// RFC 3261 13.2.1. INVITE may be offerless, we must thne send offer and remote party sends sdp in ACK.
if (invite.Request.ContentType != null && invite.Request.ContentType.ToLower().IndexOf("application/sdp") > -1)
{
m_pRemoteSDP = SDP_Message.Parse(Encoding.UTF8.GetString(invite.Request.Data));
}
m_pTags = new Dictionary <string, object>();
m_State = SIP_UA_CallState.WaitingToAccept;
}
/// <summary>
/// Default outgoing call constructor.
/// </summary>
/// <param name="ua">Owner UA.</param>
/// <param name="invite">INVITE request.</param>
/// <exception cref="ArgumentNullException">Is riased when <b>ua</b> or <b>invite</b> is null reference.</exception>
/// <exception cref="ArgumentException">Is raised when any of the argumnets has invalid value.</exception>
internal SIP_UA_Call(SIP_UA ua, SIP_Request invite)
{
if (ua == null)
{
throw new ArgumentNullException("ua");
}
if (invite == null)
{
throw new ArgumentNullException("invite");
}
if (invite.RequestLine.Method != SIP_Methods.INVITE)
{
throw new ArgumentException("Argument 'invite' is not INVITE request.");
}
m_pUA = ua;
m_pInvite = invite;
m_pLocalUri = invite.From.Address.Uri;
m_pRemoteUri = invite.To.Address.Uri;
m_State = SIP_UA_CallState.WaitingForStart;
m_pEarlyDialogs = new List <SIP_Dialog_Invite>();
m_pTags = new Dictionary <string, object>();
}
/// <summary>
/// Raises <b>StateChanged</b> event.
/// </summary>
/// <param name="state">New call state.</param>
private void OnStateChanged(SIP_UA_CallState state)
{
if (this.StateChanged != null)
{
this.StateChanged(this, new EventArgs());
}
}
/// <summary>
/// Default outgoing call constructor.
/// </summary>
/// <param name="ua">Owner UA.</param>
/// <param name="invite">INVITE request.</param>
/// <exception cref="ArgumentNullException">Is riased when <b>ua</b> or <b>invite</b> is null reference.</exception>
/// <exception cref="ArgumentException">Is raised when any of the argumnets has invalid value.</exception>
internal SIP_UA_Call(SIP_UA ua,SIP_Request invite)
{
if(ua == null){
throw new ArgumentNullException("ua");
}
if(invite == null){
throw new ArgumentNullException("invite");
}
if(invite.RequestLine.Method != SIP_Methods.INVITE){
throw new ArgumentException("Argument 'invite' is not INVITE request.");
}
m_pUA = ua;
m_pInvite = invite;
m_pLocalUri = invite.From.Address.Uri;
m_pRemoteUri = invite.To.Address.Uri;
m_State = SIP_UA_CallState.WaitingForStart;
m_pEarlyDialogs = new List<SIP_Dialog>();
}
/// <summary>
/// Default incoming call constructor.
/// </summary>
/// <param name="ua">Owner UA.</param>
/// <param name="invite">INVITE server transaction.</param>
/// <exception cref="ArgumentNullException">Is riased when <b>ua</b> or <b>invite</b> is null reference.</exception>
internal SIP_UA_Call(SIP_UA ua, SIP_ServerTransaction invite)
{
if (ua == null)
{
throw new ArgumentNullException("ua");
}
if (invite == null)
{
throw new ArgumentNullException("invite");
}
m_pUA = ua;
m_pInitialInviteTransaction = invite;
m_pLocalUri = invite.Request.To.Address.Uri;
m_pRemoteUri = invite.Request.From.Address.Uri;
m_pInitialInviteTransaction.Canceled += new EventHandler(delegate(object sender, EventArgs e){
// If transaction canceled, terminate call.
SetState(SIP_UA_CallState.Terminated);
});
m_State = SIP_UA_CallState.WaitingToAccept;
}
/// <summary>
/// Changes call state.
/// </summary>
/// <param name="state">New call state.</param>
private void SetState(SIP_UA_CallState state)
{
m_State = state;
OnStateChanged(state);
}
/// <summary>
/// Raises <b>StateChanged</b> event.
/// </summary>
/// <param name="state">New call state.</param>
private void OnStateChanged(SIP_UA_CallState state)
{
if (StateChanged != null)
{
StateChanged(this, new EventArgs());
}
}
/// <summary>
/// Changes call state.
/// </summary>
/// <param name="state">New call state.</param>
private void SetState(SIP_UA_CallState state)
{
m_State = state;
OnStateChanged(state);
}
/// <summary>
/// Default incoming call constructor.
/// </summary>
/// <param name="ua">Owner UA.</param>
/// <param name="invite">INVITE server transaction.</param>
/// <exception cref="ArgumentNullException">Is riased when <b>ua</b> or <b>invite</b> is null reference.</exception>
internal SIP_UA_Call(SIP_UA ua, SIP_ServerTransaction invite)
{
if (ua == null)
{
throw new ArgumentNullException("ua");
}
if (invite == null)
{
throw new ArgumentNullException("invite");
}
m_pUA = ua;
m_pInitialInviteTransaction = invite;
m_pLocalUri = invite.Request.To.Address.Uri;
m_pRemoteUri = invite.Request.From.Address.Uri;
m_pInitialInviteTransaction.Canceled += delegate
{
// If transaction canceled, terminate call.
SetState(SIP_UA_CallState.Terminated);
};
m_State = SIP_UA_CallState.WaitingToAccept;
}
/// <summary>
/// Default incoming call constructor.
/// </summary>
/// <param name="ua">Owner UA.</param>
/// <param name="invite">INVITE server transaction.</param>
/// <exception cref="ArgumentNullException">Is riased when <b>ua</b> or <b>invite</b> is null reference.</exception>
internal SIP_UA_Call(SIP_UA ua,SIP_ServerTransaction invite)
{
if(ua == null){
throw new ArgumentNullException("ua");
}
if(invite == null){
throw new ArgumentNullException("invite");
}
m_pUA = ua;
m_pInitialInviteTransaction = invite;
m_pLocalUri = invite.Request.To.Address.Uri;
m_pRemoteUri = invite.Request.From.Address.Uri;
m_pInitialInviteTransaction.Canceled += new EventHandler(delegate(object sender,EventArgs e){
// If transaction canceled, terminate call.
SetState(SIP_UA_CallState.Terminated);
});
// Parse SDP if INVITE contains SDP.
// RFC 3261 13.2.1. INVITE may be offerless, we must thne send offer and remote party sends sdp in ACK.
if(invite.Request.ContentType != null && invite.Request.ContentType.ToLower().IndexOf("application/sdp") > -1){
m_pRemoteSDP = SDP_Message.Parse(Encoding.UTF8.GetString(invite.Request.Data));
}
m_pTags = new Dictionary<string,object>();
m_State = SIP_UA_CallState.WaitingToAccept;
}
