Implement basic center
This commit is contained in:
206
center.js
Normal file
206
center.js
Normal file
@@ -0,0 +1,206 @@
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const smpp = require("smpp");
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const commandLineArgs = require("command-line-args");
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const commandLineUsage = require("command-line-usage");
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const NanoTimer = require("nanotimer");
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const { createBaseLogger, createSessionLogger } = require("./logger");
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const { verifyDefaults, verifyExists } = require("./utils");
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const { centerOptions } = require("./cliOptions");
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const logger = createBaseLogger();
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const options = commandLineArgs(centerOptions);
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if (options.help) {
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const usage = commandLineUsage([
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{
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header: "CLI SMPP (Center)",
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},
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{
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header: "Options",
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optionList: centerOptions,
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},
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{
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content: "Project home: {underline https://github.com/PhatDave/SMPP_CLI}",
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},
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]);
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console.log(usage);
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process.exit(0);
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}
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verifyDefaults(options, centerOptions);
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verifyExists(options.port, "Port can not be undefined or empty! (--port)", logger);
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verifyExists(options.systemid, "SystemID can not be undefined or empty! (--systemid)", logger);
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verifyExists(options.password, "Password can not be undefined or empty! (--password)", logger);
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let inFlight = 0;
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let sent = 0;
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let success = 0;
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let failed = 0;
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const sendTimer = new NanoTimer();
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function startInterval(session) {
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sendTimer.setInterval(
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async () => {
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if (sent >= options.messagecount) {
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logger.info(`Finished sending messages success:${success}, failed:${failed}, idling...`);
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sendTimer.clearInterval();
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} else if (inFlight < options.window) {
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logger.info(`Sending message ${sent + 1}/${options.messagecount}`);
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session.submit_sm(
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{
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source_addr: options.source,
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destination_addr: options.destination,
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short_message: options.message,
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},
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function (pdu) {
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inFlight--;
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if (pdu.command_status === 0) {
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logger.info(`Received response with id ${pdu.message_id}`);
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success++;
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} else {
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logger.warn(`Message failed with id ${pdu.message_id}`);
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failed++;
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}
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}
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);
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sent++;
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inFlight++;
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} else {
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logger.warn(`${inFlight}/${options.window} messages pending, waiting for a reply before sending more`);
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sendTimer.clearInterval();
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setTimeout(() => startInterval(session), options.windowsleep);
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}
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},
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"",
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`${1 / options.mps} s`
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);
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}
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logger.info(`Staring server on port ${options.port}...`);
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let sessions = {};
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let sessionid = 1;
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let messageid = 0;
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const server = smpp.createServer(
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{
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debug: options.debug,
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},
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function (session) {
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const sessionLogger = createSessionLogger(sessionid++);
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session.on("bind_transceiver", function (pdu) {
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if (pdu.system_id === options.systemid && pdu.password === options.password) {
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// sessions[session] = true;
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sessionLogger.info("Client connected");
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session.send(pdu.response());
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} else {
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sessionLogger.warn(
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`Client tried to connect with incorrect login ('${pdu.system_id}' '${pdu.password}'`
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);
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pdu.response({
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command_status: smpp.ESME_RBINDFAIL,
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});
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session.close();
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}
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});
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session.on("enquire_link", function (pdu) {
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session.send(pdu.response());
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});
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session.on("submit_sm", async function (pdu) {
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if (!options.dr) {
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sessionLogger.info("Replying to incoming submit_sm");
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session.send(pdu.response());
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return;
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}
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sessionLogger.info("Generating DR for incoming submit_sm");
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let response = pdu.response();
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response.message_id = (messageid++).toString(16);
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session.send(response);
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let drMessage = "";
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let date = new Date()
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.toISOString()
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.replace(/T/, "")
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.replace(/\..+/, "")
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.replace(/-/g, "")
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.replace(/:/g, "")
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.substring(2, 12);
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drMessage += "id:" + response.message_id + " ";
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drMessage += "sub:001 ";
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drMessage += "dlvrd:001 ";
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drMessage += "submit date:" + date + " ";
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drMessage += "done date:" + date + " ";
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drMessage += "stat:DELIVRD ";
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drMessage += "err:000 ";
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drMessage += "text:";
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const DRPdu = {
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source_addr: pdu.source_addr,
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destination_addr: pdu.destination_addr,
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short_message: drMessage,
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esm_class: 4,
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};
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sessionLogger.info(`Generated DR as ${drMessage}`);
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session.deliver_sm(DRPdu);
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});
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session.on("close", function () {
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sessionLogger.warn(`Session closed`);
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delete sessions[sessions];
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session.close();
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});
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session.on("error", function (err) {
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sessionLogger.error(`Fatal error ${err}`);
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delete sessions[sessions];
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session.close();
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});
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}
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);
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server.on('error', function(err) {
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logger.error(`Fatal server error ${err}`);
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server.close();
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process.exit(1);
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});
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server.listen(options.port);
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logger.info(`SMPP Server listening on ${options.port}`);
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// const session = smpp.connect(
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// {
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// url: `smpp://${options.host}:${options.port}`,
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// auto_enquire_link_period: 10000,
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// debug: options.debug,
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// },
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// function () {
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// logger.info(
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// `Connected, sending bind_transciever with systemId '${options.systemid}' and password '${options.password}'...`
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// );
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// session.bind_transceiver(
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// {
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// system_id: options.systemid,
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// password: options.password,
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// },
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// function (pdu) {
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// if (pdu.command_status === 0) {
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// logger.info(
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// `Successfully bound, sending ${options.messagecount} messages '${options.source}'->'${options.destination}' ('${options.message}')`
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// );
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// startInterval(session);
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// session.on("deliver_sm", function (pdu) {
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// logger.info("Got deliver_sm, replying...");
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// session.send(pdu.response());
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// });
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// session.on("close", function () {
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// logger.error(`Session closed`);
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// process.exit(1);
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// });
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// session.on("error", function (err) {
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// logger.error(`Fatal error ${err}`);
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// process.exit(1);
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// });
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// }
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// }
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// );
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// }
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// );
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