Add TLS Support
This commit is contained in:
Josef Fröhle
+113
-105
@@ -3,6 +3,7 @@
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var log = require('winston'),
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merge = require('utils-merge'),
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net = require('net'),
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tls = require('tls'),
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session = require('./session'),
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smppUtils = require('./utils');
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@@ -12,67 +13,67 @@ var log = require('winston'),
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* @param obj pduObj
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*/
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function login(pduObj) {
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var that = this;
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var that = this;
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log.debug('larvitsmpp: lib/server.js: login() - Data received and session is not loggedIn');
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log.debug('larvitsmpp: lib/server.js: login() - Data received and session is not loggedIn');
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// Pause socket so we do not receive any other commands until we have processed the login
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this.sock.pause();
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// Pause socket so we do not receive any other commands until we have processed the login
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this.sock.pause();
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// Only bind_* is accepted when the client is not logged in
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if (pduObj.cmdName !== 'bind_transceiver' && pduObj.cmdName !== 'bind_receiver' && pduObj.cmdName !== 'bind_transmitter') {
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log.debug('larvitsmpp: lib/server.js: login() - Session is not loggedIn and no bind_* command is given. Return error "ESME_RINVBNDSTS');
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// Only bind_* is accepted when the client is not logged in
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if (pduObj.cmdName !== 'bind_transceiver' && pduObj.cmdName !== 'bind_receiver' && pduObj.cmdName !== 'bind_transmitter') {
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log.debug('larvitsmpp: lib/server.js: login() - Session is not loggedIn and no bind_* command is given. Return error "ESME_RINVBNDSTS');
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smppUtils.pduReturn(pduObj, 'ESME_RINVBNDSTS', function(err, retPdu) {
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if (err) {
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that.closeSocket();
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return;
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}
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smppUtils.pduReturn(pduObj, 'ESME_RINVBNDSTS', function(err, retPdu) {
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if (err) {
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that.closeSocket();
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return;
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}
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that.sock.resume();
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that.sockWrite(retPdu);
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});
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that.sock.resume();
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that.sockWrite(retPdu);
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});
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return;
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}
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return;
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}
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// If there is a checkuserpass(), use it to check system_id and password from the PDU
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if (typeof this.options.checkuserpass === 'function') {
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this.options.checkuserpass(pduObj.params.system_id, pduObj.params.password, function(err, res, userData) {
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if (err) {
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that.closeSocket();
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return;
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}
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// If there is a checkuserpass(), use it to check system_id and password from the PDU
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if (typeof this.options.checkuserpass === 'function') {
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this.options.checkuserpass(pduObj.params.system_id, pduObj.params.password, function(err, res, userData) {
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if (err) {
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that.closeSocket();
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return;
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}
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if ( ! res) {
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log.info('larvitsmpp: lib/server.js: serverSession() - login() - Login failed! Connected host: ' + that.sock.remoteAddress + ':' + that.sock.remotePort + ' system_id: "' + pduObj.params.system_id + '"');
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if ( ! res) {
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log.info('larvitsmpp: lib/server.js: serverSession() - login() - Login failed! Connected host: ' + that.sock.remoteAddress + ':' + that.sock.remotePort + ' system_id: "' + pduObj.params.system_id + '"');
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that.sock.resume();
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that.sendReturn(pduObj, 'ESME_RBINDFAIL');
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return;
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}
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that.sock.resume();
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that.sendReturn(pduObj, 'ESME_RBINDFAIL');
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return;
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}
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log.verbose('larvitsmpp: lib/server.js: serverSession() - login() - Login successful! Connected host: ' + that.sock.remoteAddress + ':' + that.sock.remotePort + ' system_id: "' + pduObj.params.system_id + '"');
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that.loggedIn = true;
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log.verbose('larvitsmpp: lib/server.js: serverSession() - login() - Login successful! Connected host: ' + that.sock.remoteAddress + ':' + that.sock.remotePort + ' system_id: "' + pduObj.params.system_id + '"');
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that.loggedIn = true;
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// Set additional user data to the session
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if (userData !== undefined) {
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that.userData = userData;
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}
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// Set additional user data to the session
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if (userData !== undefined) {
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that.userData = userData;
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}
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that.sock.resume();
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that.emit('login');
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that.sendReturn(pduObj);
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});
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that.sock.resume();
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that.emit('login');
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that.sendReturn(pduObj);
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});
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return;
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}
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return;
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}
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// If we arrived here it means we are not logged in and that a bind_* event happened and no checkuserpass() method exists. Lets login!
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this.loggedIn = true;
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this.sock.resume();
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this.emit('login');
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this.sendReturn(pduObj);
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// If we arrived here it means we are not logged in and that a bind_* event happened and no checkuserpass() method exists. Lets login!
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this.loggedIn = true;
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this.sock.resume();
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this.emit('login');
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this.sendReturn(pduObj);
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}
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/**
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@@ -80,17 +81,17 @@ function login(pduObj) {
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* If this is not ran within options.timeout milliseconds, this session will self terminate
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*/
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function resetEnqLinkTimer() {
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var that = this;
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var that = this;
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log.silly('larvitsmpp: lib/server.js: resetEnqLinkTimer() - Resetting the kill timer');
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if (that.enqLinkTimer) {
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clearTimeout(that.enqLinkTimer);
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}
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log.silly('larvitsmpp: lib/server.js: resetEnqLinkTimer() - Resetting the kill timer');
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if (that.enqLinkTimer) {
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clearTimeout(that.enqLinkTimer);
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}
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that.enqLinkTimer = setTimeout(function() {
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log.info('larvitsmpp: lib/server.js: resetEnqLinkTimer() - Closing session from ' + that.sock.remoteAddress + ':' + that.sock.remotePort + ' due to timeout');
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that.closeSocket();
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}, that.options.timeout);
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that.enqLinkTimer = setTimeout(function() {
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log.info('larvitsmpp: lib/server.js: resetEnqLinkTimer() - Closing session from ' + that.sock.remoteAddress + ':' + that.sock.remotePort + ' due to timeout');
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that.closeSocket();
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}, that.options.timeout);
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}
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/**
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@@ -101,42 +102,42 @@ function resetEnqLinkTimer() {
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* @return obj (returnObj)
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*/
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function serverSession(sock, options) {
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var returnObj = session(sock);
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var returnObj = session(sock);
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returnObj.options = options;
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returnObj.login = login;
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returnObj.resetEnqLinkTimer = resetEnqLinkTimer;
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returnObj.options = options;
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returnObj.login = login;
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returnObj.resetEnqLinkTimer = resetEnqLinkTimer;
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returnObj.resetEnqLinkTimer();
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returnObj.resetEnqLinkTimer();
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// Handle incoming Pdu Objects
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returnObj.on('incomingPduObj', function(pduObj) {
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// Call the appropriate handleCmd function
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// Handle incoming Pdu Objects
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returnObj.on('incomingPduObj', function(pduObj) {
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// Call the appropriate handleCmd function
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// Unbind is always ok
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if (pduObj.cmdName === 'unbind') {
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returnObj.sendReturn(pduObj, 'ESME_ROK', undefined, true);
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// Unbind is always ok
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if (pduObj.cmdName === 'unbind') {
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returnObj.sendReturn(pduObj, 'ESME_ROK', undefined, true);
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// If client is not logged in, always run the login function
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} else if (returnObj.loggedIn === false) {
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log.debug('larvitsmpp: lib/server.js: serverSession() - returnObj.handleIncomingPdu() - Not logged in, running login function');
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returnObj.login(pduObj);
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// If client is not logged in, always run the login function
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} else if (returnObj.loggedIn === false) {
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log.debug('larvitsmpp: lib/server.js: serverSession() - returnObj.handleIncomingPdu() - Not logged in, running login function');
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returnObj.login(pduObj);
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// Client is logged in, try to match a handling function
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} else if (typeof returnObj.handleCmd[pduObj.cmdName] === 'function') {
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log.debug('larvitsmpp: lib/server.js: serverSession() - returnObj.on(incomingPduObj) - Running cmd handling function returnObj.handleCmd.' + pduObj.cmdName + '()');
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// Client is logged in, try to match a handling function
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} else if (typeof returnObj.handleCmd[pduObj.cmdName] === 'function') {
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log.debug('larvitsmpp: lib/server.js: serverSession() - returnObj.on(incomingPduObj) - Running cmd handling function returnObj.handleCmd.' + pduObj.cmdName + '()');
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returnObj.handleCmd[pduObj.cmdName](pduObj);
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returnObj.handleCmd[pduObj.cmdName](pduObj);
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// No command handling function is registered, return error "invalid command"
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} else {
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log.info('larvitsmpp: lib/server.js: serverSession() - returnObj.on(incomingPduObj) - No handling function found for command: "' + pduObj.cmdName + '"');
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// No command handling function is registered, return error "invalid command"
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} else {
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log.info('larvitsmpp: lib/server.js: serverSession() - returnObj.on(incomingPduObj) - No handling function found for command: "' + pduObj.cmdName + '"');
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returnObj.sendReturn(pduObj, 'ESME_RINVCMDID');
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}
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});
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returnObj.sendReturn(pduObj, 'ESME_RINVCMDID');
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}
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});
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return returnObj;
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return returnObj;
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}
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/**
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@@ -146,34 +147,41 @@ function serverSession(sock, options) {
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* @param func callback(err, session)
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*/
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function server(options, callback) {
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if (typeof options === 'function') {
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callback = options;
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options = {};
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}
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if (typeof options === 'function') {
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callback = options;
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options = {};
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}
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// Set default options
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options = merge({
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'port': 2775,
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'timeout': 40000 // 40 sec
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}, options || {});
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// Set default options
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options = merge({
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'port': 2775,
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'tls': false,
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'timeout': 40000 // 40 sec
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}, options || {});
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// Create a server instance, and chain the listen function to it
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// The function passed to net.createServer() becomes the event handler for the 'connection' event
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// The sock object the callback function receives UNIQUE for each connection
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net.createServer(function(sock) {
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var returnObj = serverSession(sock, options);
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if(options && options.tls && option.tls === true){
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var tls_or_net = tls;
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} else {
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var tls_or_net = net;
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}
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// We have a connection - a socket object is assigned to the connection automatically
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log.verbose('larvitsmpp: lib/server.js: server() - Incomming connection! From: ' + sock.remoteAddress + ':' + sock.remotePort);
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// Create a server instance, and chain the listen function to it
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// The function passed to net.createServer() becomes the event handler for the 'connection' event
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// The sock object the callback function receives UNIQUE for each connection
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tls_or_net.createServer(options, function(sock) {
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var returnObj = serverSession(sock, options);
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callback(null, returnObj);
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}).listen(options.port, options.host);
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// We have a connection - a socket object is assigned to the connection automatically
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log.verbose('larvitsmpp: lib/server.js: server() - Incomming connection! From: ' + sock.remoteAddress + ':' + sock.remotePort);
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if (options.host !== undefined) {
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log.info('larvitsmpp: lib/server.js: server() - Up and listening at ' + options.host + ':' + options.port);
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} else {
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log.info('larvitsmpp: lib/server.js: server() - Up and listening at *:' + options.port);
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}
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callback(null, returnObj);
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}).listen(options.port, options.host);
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if (options.host !== undefined) {
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log.info('larvitsmpp: lib/server.js: server() - Up and listening at ' + options.host + ':' + options.port);
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} else {
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log.info('larvitsmpp: lib/server.js: server() - Up and listening at *:' + options.port);
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}
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}
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// Expose some functions
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