From 5ac0f773023a9c1c70524f1b63d2afc7d837a31f Mon Sep 17 00:00:00 2001
From: Abyss777 <abyss@fox5.ru>
Date: Tue, 6 Mar 2018 13:52:44 +0500
Subject: Implement additional way to detect SMPP delivery receipts

---
 src/org/traccar/smpp/ClientSmppSessionHandler.java |  9 ++++++++-
 src/org/traccar/smpp/SmppClient.java               | 12 +++++++++---
 2 files changed, 17 insertions(+), 4 deletions(-)

(limited to 'src/org/traccar')

diff --git a/src/org/traccar/smpp/ClientSmppSessionHandler.java b/src/org/traccar/smpp/ClientSmppSessionHandler.java
index 69ef9af41..3585f8376 100644
--- a/src/org/traccar/smpp/ClientSmppSessionHandler.java
+++ b/src/org/traccar/smpp/ClientSmppSessionHandler.java
@@ -50,7 +50,14 @@ public class ClientSmppSessionHandler extends DefaultSmppSessionHandler {
                         smppClient.mapDataCodingToCharset(((DeliverSm) request).getDataCoding()));
                 Log.debug("SMS Message Received: " + message.trim() + ", Source Address: " + sourceAddress);
 
-                if (!SmppUtil.isMessageTypeAnyDeliveryReceipt(((DeliverSm) request).getEsmClass())) {
+                boolean isDeliveryReceipt = false;
+                if (smppClient.getDetectDlrByOpts()) {
+                    isDeliveryReceipt = request.getOptionalParameters() != null;
+                } else {
+                    isDeliveryReceipt = SmppUtil.isMessageTypeAnyDeliveryReceipt(((DeliverSm) request).getEsmClass());
+                }
+
+                if (!isDeliveryReceipt) {
                     TextMessageEventHandler.handleTextMessage(sourceAddress, message);
                 }
             }
diff --git a/src/org/traccar/smpp/SmppClient.java b/src/org/traccar/smpp/SmppClient.java
index 602087a65..0f7d2cf6d 100644
--- a/src/org/traccar/smpp/SmppClient.java
+++ b/src/org/traccar/smpp/SmppClient.java
@@ -61,7 +61,8 @@ public class SmppClient {
     private String sourceAddress;
     private String commandSourceAddress;
     private int submitTimeout;
-    private boolean requestDrl;
+    private boolean requestDlr;
+    private boolean detectDlrByOpts;
     private String notificationsCharsetName;
     private byte notificationsDataCoding;
     private String commandsCharsetName;
@@ -92,7 +93,8 @@ public class SmppClient {
         commandSourceAddress = Context.getConfig().getString("sms.smpp.commandSourceAddress", sourceAddress);
         submitTimeout = Context.getConfig().getInteger("sms.smpp.submitTimeout", 10000);
 
-        requestDrl = Context.getConfig().getBoolean("sms.smpp.requestDrl");
+        requestDlr = Context.getConfig().getBoolean("sms.smpp.requestDlr");
+        detectDlrByOpts = Context.getConfig().getBoolean("sms.smpp.detectDlrByOpts");
 
         notificationsCharsetName = Context.getConfig().getString("sms.smpp.notificationsCharset",
                 CharsetUtil.NAME_UCS_2);
@@ -153,6 +155,10 @@ public class SmppClient {
         }
     }
 
+    public boolean getDetectDlrByOpts() {
+        return detectDlrByOpts;
+    }
+
     protected synchronized void reconnect() {
         try {
             disconnect();
@@ -213,7 +219,7 @@ public class SmppClient {
             byte[] textBytes;
             textBytes = CharsetUtil.encode(message, command ? commandsCharsetName : notificationsCharsetName);
             submit.setDataCoding(command ? commandsDataCoding : notificationsDataCoding);
-            if (requestDrl) {
+            if (requestDlr) {
                 submit.setRegisteredDelivery(SmppConstants.REGISTERED_DELIVERY_SMSC_RECEIPT_REQUESTED);
             }
             submit.setShortMessage(textBytes);
-- 
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