/// <summary>
/// Messaging events
/// </summary>
/// <param name="e"></param>
/// <returns></returns>
public override int OnMessagingEvent(MessagingEvent e)
{
tsip_message_event_type_t type = e.getType();
switch (type)
{
case tsip_message_event_type_t.tsip_ao_message:
break;
case tsip_message_event_type_t.tsip_i_message:
{
SipMessage message = e.getSipMessage();
MessagingSession session = e.getSession();
uint sessionId;
if (session == null)
{
/* "Server-side-session" e.g. Initial MESSAGE sent by the remote party */
session = e.takeSessionOwnership();
}
if (session == null)
{
LOG.Error("Failed to take session ownership");
}
if (message == null)
{
LOG.Error("Invalid message");
session.reject();
session.Dispose();
return 0;
}
sessionId = session.getId();
String from = message.getSipHeaderValue("f");
String contentType = message.getSipHeaderValue("c");
byte[] bytes = message.getSipContent();
byte[] content = null;
if (bytes == null || bytes.Length == 0)
{
LOG.Error("Invalid MESSAGE");
session.reject();
session.Dispose();
return 0;
}
// Send 200 OK
session.accept();
session.Dispose();
if (String.Equals(contentType, ContentType.SMS_3GPP, StringComparison.InvariantCultureIgnoreCase))
{
/* ==== 3GPP SMSIP === */
byte[] buffer = (bytes.Clone() as byte[]);
SMSData smsData = SMSEncoder.decode(buffer, (uint)buffer.Length, false);
if (smsData != null){
twrap_sms_type_t smsType = smsData.getType();
if (smsType == twrap_sms_type_t.twrap_sms_type_rpdata){
/* === We have received a RP-DATA message === */
long payLength = smsData.getPayloadLength();
String SMSC = message.getSipHeaderValue("P-Asserted-Identity");
String SMSCPhoneNumber;
String origPhoneNumber = smsData.getOA();
/* Destination address */
if(origPhoneNumber != null){
from = UriUtils.GetValidSipUri(origPhoneNumber);
}
else if((origPhoneNumber = UriUtils.GetValidPhoneNumber(from)) == null){
LOG.Error("Invalid destination address");
return 0;
}
/* SMS Center
* 3GPP TS 24.341 - 5.3.2.4 Sending a delivery report
* The address of the IP-SM-GW is received in the P-Asserted-Identity header in the SIP MESSAGE
* request including the delivered short message.
* */
if((SMSCPhoneNumber = UriUtils.GetValidPhoneNumber(SMSC)) == null){
SMSC = this.sipService.manager.ConfigurationService.Get(Configuration.ConfFolder.RCS, Configuration.ConfEntry.SMSC, Configuration.DEFAULT_RCS_SMSC);
if((SMSCPhoneNumber = UriUtils.GetValidPhoneNumber(SMSC)) == null){
LOG.Error("Invalid IP-SM-GW address");
return 0;
}
}
if (payLength > 0) {
/* Send RP-ACK */
RPMessage rpACK = SMSEncoder.encodeACK(smsData.getMR(), SMSCPhoneNumber, origPhoneNumber, false);
if (rpACK != null){
long ack_len = rpACK.getPayloadLength();
if (ack_len > 0){
buffer = new byte[(int)ack_len];
long len = rpACK.getPayload(buffer, (uint)buffer.Length);
MessagingSession m = new MessagingSession(this.sipService.SipStack);
m.setToUri(SMSC);
m.addHeader("Content-Type", ContentType.SMS_3GPP);
m.addHeader("Content-Transfer-Encoding", "binary");
m.addCaps("+g.3gpp.smsip");
m.send(buffer, (uint)len);
m.Dispose();
}
rpACK.Dispose();
}
/* Get ascii content */
content = new byte[(int)payLength];
smsData.getPayload(content, (uint)content.Length);
}
else{
/* Send RP-ERROR */
RPMessage rpError = SMSEncoder.encodeError(smsData.getMR(), SMSCPhoneNumber, origPhoneNumber, false);
if (rpError != null){
long err_len = rpError.getPayloadLength();
if (err_len > 0){
buffer = new byte[(int)err_len];
long len = rpError.getPayload(buffer, (uint)buffer.Length);
MessagingSession m = new MessagingSession(this.sipService.SipStack);
m.setToUri(SMSC);
m.addHeader("Content-Type", ContentType.SMS_3GPP);
m.addHeader("Transfer-Encoding", "binary");
m.addCaps("+g.3gpp.smsip");
m.send(buffer, (uint)len);
m.Dispose();
}
rpError.Dispose();
}
}
}
else{
/* === We have received any non-RP-DATA message === */
if(smsType == twrap_sms_type_t.twrap_sms_type_ack){
/* Find message from the history (by MR) an update it's status */
LOG.Debug("RP-ACK");
}
else if(smsType == twrap_sms_type_t.twrap_sms_type_error){
/* Find message from the history (by MR) an update it's status */
LOG.Debug("RP-ERROR");
}
}
}
}
else
{
/* ==== text/plain or any other === */
content = bytes;
}
/* Alert the user a,d add the message to the history */
if (content != null)
{
MessagingEventArgs eargs = new MessagingEventArgs(sessionId, MessagingEventTypes.INCOMING, e.getPhrase(), content);
eargs
.AddExtra(MessagingEventArgs.EXTRA_CODE, e.getCode())
.AddExtra(MessagingEventArgs.EXTRA_REMOTE_PARTY, from)
.AddExtra(MessagingEventArgs.EXTRA_CONTENT_TYPE, contentType == null ? ContentType.UNKNOWN : contentType);
EventHandlerTrigger.TriggerEvent<MessagingEventArgs>(this.sipService.onMessagingEvent, this.sipService, eargs);
}
break;
}
}
return 0;
}
