Initial commit

jstester/smppCenter.js

@@ -0,0 +1,64 @@
+const smpp = require("smpp");
+
+const PORT = 2775;
+
+let messageIdIterator = Math.floor(Math.random() * 1_000_000);
+console.log(`Using iterator: ${messageIdIterator}`);
+
+const server = smpp.createServer(
+	{
+		debug: false,
+	},
+	function (session) {
+		session.on("error", function (err) {
+			console.error(err);
+		});
+		session.on("bind_transceiver", function (pdu) {
+			console.log("Client connected");
+			session.send(pdu.response());
+		});
+		session.on("enquire_link", function (pdu) {
+			session.send(pdu.response());
+		});
+		session.on("submit_sm", async function (pdu) {
+			console.log(new Date().toISOString() + " Incoming submit_sm");
+			console.log(pdu);
+			let response = pdu.response();
+			response.message_id = (messageIdIterator++).toString(16);
+			session.send(response);
+
+			let drMessage = "";
+			let date = new Date()
+				.toISOString()
+				.replace(/T/, "")
+				.replace(/\..+/, "")
+				.replace(/-/g, "")
+				.replace(/:/g, "")
+				.substring(2, 12);
+
+			drMessage += "id:" + response.message_id + " ";
+			drMessage += "sub:001 ";
+			drMessage += "dlvrd:001 ";
+			drMessage += "submit date:" + date + " ";
+			drMessage += "done date:" + date + " ";
+			drMessage += "stat:DELIVRD ";
+			drMessage += "err:000 ";
+			drMessage += "text:";
+
+			setTimeout(() => {
+				console.log(new Date().toISOString() + " Sending DR");
+				const DRPdu = {
+					source_addr: pdu.source_addr,
+					destination_addr: pdu.destination_addr,
+					short_message: drMessage,
+					esm_class: 4,
+				};
+				console.log(DRPdu);
+				session.deliver_sm(DRPdu);
+			}, 2 * 60 * 1000);
+		});
+	}
+);
+
+server.listen(PORT);
+console.log("Server started");