mirror of
https://github.com/JasonYANG170/IOTConnect-Web.git
synced 2024-11-23 20:26:28 +00:00
2396 lines
88 KiB
JavaScript
2396 lines
88 KiB
JavaScript
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/*******************************************************************************
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* Copyright (c) 2013 IBM Corp.
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*
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* and Eclipse Distribution License v1.0 which accompany this distribution.
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*
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* The Eclipse Public License is available at
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* http://www.eclipse.org/legal/epl-v10.html
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* and the Eclipse Distribution License is available at
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* http://www.eclipse.org/org/documents/edl-v10.php.
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*
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* Contributors:
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* Andrew Banks - initial API and implementation and initial documentation
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*******************************************************************************/
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// Only expose a single object name in the global namespace.
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// Everything must go through this module. Global Paho module
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// only has a single public function, client, which returns
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// a Paho client object given connection details.
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/**
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* Send and receive messages using web browsers.
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* <p>
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* This programming interface lets a JavaScript client application use the MQTT V3.1 or
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* V3.1.1 protocol to connect to an MQTT-supporting messaging server.
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*
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* The function supported includes:
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* <ol>
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* <li>Connecting to and disconnecting from a server. The server is identified by its host name and port number.
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* <li>Specifying options that relate to the communications link with the server,
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* for example the frequency of keep-alive heartbeats, and whether SSL/TLS is required.
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* <li>Subscribing to and receiving messages from MQTT Topics.
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* <li>Publishing messages to MQTT Topics.
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* </ol>
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* <p>
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* The API consists of two main objects:
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* <dl>
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* <dt><b>{@link Paho.Client}</b></dt>
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* <dd>This contains methods that provide the functionality of the API,
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* including provision of callbacks that notify the application when a message
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* arrives from or is delivered to the messaging server,
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* or when the status of its connection to the messaging server changes.</dd>
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* <dt><b>{@link Paho.Message}</b></dt>
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* <dd>This encapsulates the payload of the message along with various attributes
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* associated with its delivery, in particular the destination to which it has
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* been (or is about to be) sent.</dd>
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* </dl>
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* <p>
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* The programming interface validates parameters passed to it, and will throw
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* an Error containing an error message intended for developer use, if it detects
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* an error with any parameter.
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* <p>
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* Example:
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*
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* <code><pre>
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var client = new Paho.MQTT.Client(location.hostname, Number(location.port), "clientId");
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client.onConnectionLost = onConnectionLost;
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client.onMessageArrived = onMessageArrived;
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client.connect({onSuccess:onConnect});
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function onConnect() {
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// Once a connection has been made, make a subscription and send a message.
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console.log("onConnect");
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client.subscribe("/World");
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var message = new Paho.MQTT.Message("Hello");
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message.destinationName = "/World";
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client.send(message);
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};
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function onConnectionLost(responseObject) {
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if (responseObject.errorCode !== 0)
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console.log("onConnectionLost:"+responseObject.errorMessage);
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};
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function onMessageArrived(message) {
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console.log("onMessageArrived:"+message.payloadString);
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client.disconnect();
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};
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* </pre></code>
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* @namespace Paho
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*/
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/* jshint shadow:true */
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(function ExportLibrary(root, factory) {
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if(typeof exports === "object" && typeof module === "object"){
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module.exports = factory();
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} else if (typeof define === "function" && define.amd){
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define(factory);
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} else if (typeof exports === "object"){
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exports = factory();
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} else {
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//if (typeof root.Paho === "undefined"){
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// root.Paho = {};
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//}
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root.Paho = factory();
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}
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})(this, function LibraryFactory(){
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var PahoMQTT = (function (global) {
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// Private variables below, these are only visible inside the function closure
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// which is used to define the module.
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var version = "@VERSION@-@BUILDLEVEL@";
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/**
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* @private
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*/
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var localStorage = global.localStorage || (function () {
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var data = {};
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return {
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setItem: function (key, item) { data[key] = item; },
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getItem: function (key) { return data[key]; },
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removeItem: function (key) { delete data[key]; },
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};
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})();
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/**
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* Unique message type identifiers, with associated
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* associated integer values.
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* @private
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*/
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var MESSAGE_TYPE = {
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CONNECT: 1,
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CONNACK: 2,
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PUBLISH: 3,
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PUBACK: 4,
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PUBREC: 5,
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PUBREL: 6,
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PUBCOMP: 7,
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SUBSCRIBE: 8,
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SUBACK: 9,
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UNSUBSCRIBE: 10,
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UNSUBACK: 11,
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PINGREQ: 12,
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PINGRESP: 13,
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DISCONNECT: 14
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};
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// Collection of utility methods used to simplify module code
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// and promote the DRY pattern.
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/**
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* Validate an object's parameter names to ensure they
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* match a list of expected variables name for this option
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* type. Used to ensure option object passed into the API don't
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* contain erroneous parameters.
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* @param {Object} obj - User options object
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* @param {Object} keys - valid keys and types that may exist in obj.
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* @throws {Error} Invalid option parameter found.
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* @private
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*/
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var validate = function(obj, keys) {
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for (var key in obj) {
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if (obj.hasOwnProperty(key)) {
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if (keys.hasOwnProperty(key)) {
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if (typeof obj[key] !== keys[key])
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throw new Error(format(ERROR.INVALID_TYPE, [typeof obj[key], key]));
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} else {
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var errorStr = "Unknown property, " + key + ". Valid properties are:";
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for (var validKey in keys)
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if (keys.hasOwnProperty(validKey))
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errorStr = errorStr+" "+validKey;
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throw new Error(errorStr);
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}
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}
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}
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};
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/**
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* Return a new function which runs the user function bound
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* to a fixed scope.
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* @param {function} User function
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* @param {object} Function scope
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* @return {function} User function bound to another scope
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* @private
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*/
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var scope = function (f, scope) {
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return function () {
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return f.apply(scope, arguments);
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};
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};
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/**
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* Unique message type identifiers, with associated
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* associated integer values.
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* @private
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*/
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var ERROR = {
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OK: {code:0, text:"AMQJSC0000I OK."},
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CONNECT_TIMEOUT: {code:1, text:"AMQJSC0001E Connect timed out."},
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SUBSCRIBE_TIMEOUT: {code:2, text:"AMQJS0002E Subscribe timed out."},
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UNSUBSCRIBE_TIMEOUT: {code:3, text:"AMQJS0003E Unsubscribe timed out."},
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PING_TIMEOUT: {code:4, text:"AMQJS0004E Ping timed out."},
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INTERNAL_ERROR: {code:5, text:"AMQJS0005E Internal error. Error Message: {0}, Stack trace: {1}"},
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CONNACK_RETURNCODE: {code:6, text:"AMQJS0006E Bad Connack return code:{0} {1}."},
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SOCKET_ERROR: {code:7, text:"AMQJS0007E Socket error:{0}."},
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SOCKET_CLOSE: {code:8, text:"AMQJS0008I Socket closed."},
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MALFORMED_UTF: {code:9, text:"AMQJS0009E Malformed UTF data:{0} {1} {2}."},
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UNSUPPORTED: {code:10, text:"AMQJS0010E {0} is not supported by this browser."},
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INVALID_STATE: {code:11, text:"AMQJS0011E Invalid state {0}."},
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INVALID_TYPE: {code:12, text:"AMQJS0012E Invalid type {0} for {1}."},
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INVALID_ARGUMENT: {code:13, text:"AMQJS0013E Invalid argument {0} for {1}."},
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UNSUPPORTED_OPERATION: {code:14, text:"AMQJS0014E Unsupported operation."},
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INVALID_STORED_DATA: {code:15, text:"AMQJS0015E Invalid data in local storage key={0} value={1}."},
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INVALID_MQTT_MESSAGE_TYPE: {code:16, text:"AMQJS0016E Invalid MQTT message type {0}."},
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MALFORMED_UNICODE: {code:17, text:"AMQJS0017E Malformed Unicode string:{0} {1}."},
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BUFFER_FULL: {code:18, text:"AMQJS0018E Message buffer is full, maximum buffer size: {0}."},
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};
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/** CONNACK RC Meaning. */
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var CONNACK_RC = {
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0:"Connection Accepted",
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1:"Connection Refused: unacceptable protocol version",
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2:"Connection Refused: identifier rejected",
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3:"Connection Refused: server unavailable",
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4:"Connection Refused: bad user name or password",
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5:"Connection Refused: not authorized"
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};
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/**
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* Format an error message text.
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* @private
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* @param {error} ERROR value above.
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* @param {substitutions} [array] substituted into the text.
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* @return the text with the substitutions made.
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*/
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var format = function(error, substitutions) {
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var text = error.text;
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if (substitutions) {
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var field,start;
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for (var i=0; i<substitutions.length; i++) {
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field = "{"+i+"}";
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start = text.indexOf(field);
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if(start > 0) {
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var part1 = text.substring(0,start);
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var part2 = text.substring(start+field.length);
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text = part1+substitutions[i]+part2;
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}
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}
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}
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return text;
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};
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//MQTT protocol and version 6 M Q I s d p 3
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var MqttProtoIdentifierv3 = [0x00,0x06,0x4d,0x51,0x49,0x73,0x64,0x70,0x03];
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//MQTT proto/version for 311 4 M Q T T 4
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var MqttProtoIdentifierv4 = [0x00,0x04,0x4d,0x51,0x54,0x54,0x04];
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/**
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* Construct an MQTT wire protocol message.
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* @param type MQTT packet type.
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* @param options optional wire message attributes.
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*
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* Optional properties
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*
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* messageIdentifier: message ID in the range [0..65535]
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* payloadMessage: Application Message - PUBLISH only
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* connectStrings: array of 0 or more Strings to be put into the CONNECT payload
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* topics: array of strings (SUBSCRIBE, UNSUBSCRIBE)
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* requestQoS: array of QoS values [0..2]
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*
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* "Flag" properties
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* cleanSession: true if present / false if absent (CONNECT)
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* willMessage: true if present / false if absent (CONNECT)
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* isRetained: true if present / false if absent (CONNECT)
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* userName: true if present / false if absent (CONNECT)
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* password: true if present / false if absent (CONNECT)
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* keepAliveInterval: integer [0..65535] (CONNECT)
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*
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* @private
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* @ignore
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*/
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var WireMessage = function (type, options) {
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this.type = type;
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for (var name in options) {
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if (options.hasOwnProperty(name)) {
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this[name] = options[name];
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}
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}
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};
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WireMessage.prototype.encode = function() {
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// Compute the first byte of the fixed header
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var first = ((this.type & 0x0f) << 4);
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/*
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* Now calculate the length of the variable header + payload by adding up the lengths
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* of all the component parts
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*/
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var remLength = 0;
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var topicStrLength = [];
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var destinationNameLength = 0;
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var willMessagePayloadBytes;
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// if the message contains a messageIdentifier then we need two bytes for that
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if (this.messageIdentifier !== undefined)
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remLength += 2;
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switch(this.type) {
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// If this a Connect then we need to include 12 bytes for its header
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case MESSAGE_TYPE.CONNECT:
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switch(this.mqttVersion) {
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case 3:
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remLength += MqttProtoIdentifierv3.length + 3;
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break;
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case 4:
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||
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remLength += MqttProtoIdentifierv4.length + 3;
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break;
|
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}
|
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|
|
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remLength += UTF8Length(this.clientId) + 2;
|
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if (this.willMessage !== undefined) {
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remLength += UTF8Length(this.willMessage.destinationName) + 2;
|
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// Will message is always a string, sent as UTF-8 characters with a preceding length.
|
||
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willMessagePayloadBytes = this.willMessage.payloadBytes;
|
||
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if (!(willMessagePayloadBytes instanceof Uint8Array))
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willMessagePayloadBytes = new Uint8Array(payloadBytes);
|
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remLength += willMessagePayloadBytes.byteLength +2;
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}
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if (this.userName !== undefined)
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remLength += UTF8Length(this.userName) + 2;
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if (this.password !== undefined)
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remLength += UTF8Length(this.password) + 2;
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break;
|
||
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// Subscribe, Unsubscribe can both contain topic strings
|
||
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case MESSAGE_TYPE.SUBSCRIBE:
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||
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first |= 0x02; // Qos = 1;
|
||
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for ( var i = 0; i < this.topics.length; i++) {
|
||
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topicStrLength[i] = UTF8Length(this.topics[i]);
|
||
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remLength += topicStrLength[i] + 2;
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||
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}
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||
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remLength += this.requestedQos.length; // 1 byte for each topic's Qos
|
||
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// QoS on Subscribe only
|
||
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break;
|
||
|
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|
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case MESSAGE_TYPE.UNSUBSCRIBE:
|
||
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first |= 0x02; // Qos = 1;
|
||
|
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for ( var i = 0; i < this.topics.length; i++) {
|
||
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topicStrLength[i] = UTF8Length(this.topics[i]);
|
||
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remLength += topicStrLength[i] + 2;
|
||
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}
|
||
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break;
|
||
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case MESSAGE_TYPE.PUBREL:
|
||
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first |= 0x02; // Qos = 1;
|
||
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break;
|
||
|
|
|
||
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case MESSAGE_TYPE.PUBLISH:
|
||
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if (this.payloadMessage.duplicate) first |= 0x08;
|
||
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first = first |= (this.payloadMessage.qos << 1);
|
||
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if (this.payloadMessage.retained) first |= 0x01;
|
||
|
|
destinationNameLength = UTF8Length(this.payloadMessage.destinationName);
|
||
|
|
remLength += destinationNameLength + 2;
|
||
|
|
var payloadBytes = this.payloadMessage.payloadBytes;
|
||
|
|
remLength += payloadBytes.byteLength;
|
||
|
|
if (payloadBytes instanceof ArrayBuffer)
|
||
|
|
payloadBytes = new Uint8Array(payloadBytes);
|
||
|
|
else if (!(payloadBytes instanceof Uint8Array))
|
||
|
|
payloadBytes = new Uint8Array(payloadBytes.buffer);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.DISCONNECT:
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Now we can allocate a buffer for the message
|
||
|
|
|
||
|
|
var mbi = encodeMBI(remLength); // Convert the length to MQTT MBI format
|
||
|
|
var pos = mbi.length + 1; // Offset of start of variable header
|
||
|
|
var buffer = new ArrayBuffer(remLength + pos);
|
||
|
|
var byteStream = new Uint8Array(buffer); // view it as a sequence of bytes
|
||
|
|
|
||
|
|
//Write the fixed header into the buffer
|
||
|
|
byteStream[0] = first;
|
||
|
|
byteStream.set(mbi,1);
|
||
|
|
|
||
|
|
// If this is a PUBLISH then the variable header starts with a topic
|
||
|
|
if (this.type == MESSAGE_TYPE.PUBLISH)
|
||
|
|
pos = writeString(this.payloadMessage.destinationName, destinationNameLength, byteStream, pos);
|
||
|
|
// If this is a CONNECT then the variable header contains the protocol name/version, flags and keepalive time
|
||
|
|
|
||
|
|
else if (this.type == MESSAGE_TYPE.CONNECT) {
|
||
|
|
switch (this.mqttVersion) {
|
||
|
|
case 3:
|
||
|
|
byteStream.set(MqttProtoIdentifierv3, pos);
|
||
|
|
pos += MqttProtoIdentifierv3.length;
|
||
|
|
break;
|
||
|
|
case 4:
|
||
|
|
byteStream.set(MqttProtoIdentifierv4, pos);
|
||
|
|
pos += MqttProtoIdentifierv4.length;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
var connectFlags = 0;
|
||
|
|
if (this.cleanSession)
|
||
|
|
connectFlags = 0x02;
|
||
|
|
if (this.willMessage !== undefined ) {
|
||
|
|
connectFlags |= 0x04;
|
||
|
|
connectFlags |= (this.willMessage.qos<<3);
|
||
|
|
if (this.willMessage.retained) {
|
||
|
|
connectFlags |= 0x20;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (this.userName !== undefined)
|
||
|
|
connectFlags |= 0x80;
|
||
|
|
if (this.password !== undefined)
|
||
|
|
connectFlags |= 0x40;
|
||
|
|
byteStream[pos++] = connectFlags;
|
||
|
|
pos = writeUint16 (this.keepAliveInterval, byteStream, pos);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Output the messageIdentifier - if there is one
|
||
|
|
if (this.messageIdentifier !== undefined)
|
||
|
|
pos = writeUint16 (this.messageIdentifier, byteStream, pos);
|
||
|
|
|
||
|
|
switch(this.type) {
|
||
|
|
case MESSAGE_TYPE.CONNECT:
|
||
|
|
pos = writeString(this.clientId, UTF8Length(this.clientId), byteStream, pos);
|
||
|
|
if (this.willMessage !== undefined) {
|
||
|
|
pos = writeString(this.willMessage.destinationName, UTF8Length(this.willMessage.destinationName), byteStream, pos);
|
||
|
|
pos = writeUint16(willMessagePayloadBytes.byteLength, byteStream, pos);
|
||
|
|
byteStream.set(willMessagePayloadBytes, pos);
|
||
|
|
pos += willMessagePayloadBytes.byteLength;
|
||
|
|
|
||
|
|
}
|
||
|
|
if (this.userName !== undefined)
|
||
|
|
pos = writeString(this.userName, UTF8Length(this.userName), byteStream, pos);
|
||
|
|
if (this.password !== undefined)
|
||
|
|
pos = writeString(this.password, UTF8Length(this.password), byteStream, pos);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.PUBLISH:
|
||
|
|
// PUBLISH has a text or binary payload, if text do not add a 2 byte length field, just the UTF characters.
|
||
|
|
byteStream.set(payloadBytes, pos);
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
// case MESSAGE_TYPE.PUBREC:
|
||
|
|
// case MESSAGE_TYPE.PUBREL:
|
||
|
|
// case MESSAGE_TYPE.PUBCOMP:
|
||
|
|
// break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.SUBSCRIBE:
|
||
|
|
// SUBSCRIBE has a list of topic strings and request QoS
|
||
|
|
for (var i=0; i<this.topics.length; i++) {
|
||
|
|
pos = writeString(this.topics[i], topicStrLength[i], byteStream, pos);
|
||
|
|
byteStream[pos++] = this.requestedQos[i];
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.UNSUBSCRIBE:
|
||
|
|
// UNSUBSCRIBE has a list of topic strings
|
||
|
|
for (var i=0; i<this.topics.length; i++)
|
||
|
|
pos = writeString(this.topics[i], topicStrLength[i], byteStream, pos);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
// Do nothing.
|
||
|
|
}
|
||
|
|
|
||
|
|
return buffer;
|
||
|
|
};
|
||
|
|
|
||
|
|
function decodeMessage(input,pos) {
|
||
|
|
var startingPos = pos;
|
||
|
|
var first = input[pos];
|
||
|
|
var type = first >> 4;
|
||
|
|
var messageInfo = first &= 0x0f;
|
||
|
|
pos += 1;
|
||
|
|
|
||
|
|
|
||
|
|
// Decode the remaining length (MBI format)
|
||
|
|
|
||
|
|
var digit;
|
||
|
|
var remLength = 0;
|
||
|
|
var multiplier = 1;
|
||
|
|
do {
|
||
|
|
if (pos == input.length) {
|
||
|
|
return [null,startingPos];
|
||
|
|
}
|
||
|
|
digit = input[pos++];
|
||
|
|
remLength += ((digit & 0x7F) * multiplier);
|
||
|
|
multiplier *= 128;
|
||
|
|
} while ((digit & 0x80) !== 0);
|
||
|
|
|
||
|
|
var endPos = pos+remLength;
|
||
|
|
if (endPos > input.length) {
|
||
|
|
return [null,startingPos];
|
||
|
|
}
|
||
|
|
|
||
|
|
var wireMessage = new WireMessage(type);
|
||
|
|
switch(type) {
|
||
|
|
case MESSAGE_TYPE.CONNACK:
|
||
|
|
var connectAcknowledgeFlags = input[pos++];
|
||
|
|
if (connectAcknowledgeFlags & 0x01)
|
||
|
|
wireMessage.sessionPresent = true;
|
||
|
|
wireMessage.returnCode = input[pos++];
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.PUBLISH:
|
||
|
|
var qos = (messageInfo >> 1) & 0x03;
|
||
|
|
|
||
|
|
var len = readUint16(input, pos);
|
||
|
|
pos += 2;
|
||
|
|
var topicName = parseUTF8(input, pos, len);
|
||
|
|
pos += len;
|
||
|
|
// If QoS 1 or 2 there will be a messageIdentifier
|
||
|
|
if (qos > 0) {
|
||
|
|
wireMessage.messageIdentifier = readUint16(input, pos);
|
||
|
|
pos += 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
var message = new Message(input.subarray(pos, endPos));
|
||
|
|
if ((messageInfo & 0x01) == 0x01)
|
||
|
|
message.retained = true;
|
||
|
|
if ((messageInfo & 0x08) == 0x08)
|
||
|
|
message.duplicate = true;
|
||
|
|
message.qos = qos;
|
||
|
|
message.destinationName = topicName;
|
||
|
|
wireMessage.payloadMessage = message;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.PUBACK:
|
||
|
|
case MESSAGE_TYPE.PUBREC:
|
||
|
|
case MESSAGE_TYPE.PUBREL:
|
||
|
|
case MESSAGE_TYPE.PUBCOMP:
|
||
|
|
case MESSAGE_TYPE.UNSUBACK:
|
||
|
|
wireMessage.messageIdentifier = readUint16(input, pos);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.SUBACK:
|
||
|
|
wireMessage.messageIdentifier = readUint16(input, pos);
|
||
|
|
pos += 2;
|
||
|
|
wireMessage.returnCode = input.subarray(pos, endPos);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return [wireMessage,endPos];
|
||
|
|
}
|
||
|
|
|
||
|
|
function writeUint16(input, buffer, offset) {
|
||
|
|
buffer[offset++] = input >> 8; //MSB
|
||
|
|
buffer[offset++] = input % 256; //LSB
|
||
|
|
return offset;
|
||
|
|
}
|
||
|
|
|
||
|
|
function writeString(input, utf8Length, buffer, offset) {
|
||
|
|
offset = writeUint16(utf8Length, buffer, offset);
|
||
|
|
stringToUTF8(input, buffer, offset);
|
||
|
|
return offset + utf8Length;
|
||
|
|
}
|
||
|
|
|
||
|
|
function readUint16(buffer, offset) {
|
||
|
|
return 256*buffer[offset] + buffer[offset+1];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Encodes an MQTT Multi-Byte Integer
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function encodeMBI(number) {
|
||
|
|
var output = new Array(1);
|
||
|
|
var numBytes = 0;
|
||
|
|
|
||
|
|
do {
|
||
|
|
var digit = number % 128;
|
||
|
|
number = number >> 7;
|
||
|
|
if (number > 0) {
|
||
|
|
digit |= 0x80;
|
||
|
|
}
|
||
|
|
output[numBytes++] = digit;
|
||
|
|
} while ( (number > 0) && (numBytes<4) );
|
||
|
|
|
||
|
|
return output;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Takes a String and calculates its length in bytes when encoded in UTF8.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function UTF8Length(input) {
|
||
|
|
var output = 0;
|
||
|
|
for (var i = 0; i<input.length; i++)
|
||
|
|
{
|
||
|
|
var charCode = input.charCodeAt(i);
|
||
|
|
if (charCode > 0x7FF)
|
||
|
|
{
|
||
|
|
// Surrogate pair means its a 4 byte character
|
||
|
|
if (0xD800 <= charCode && charCode <= 0xDBFF)
|
||
|
|
{
|
||
|
|
i++;
|
||
|
|
output++;
|
||
|
|
}
|
||
|
|
output +=3;
|
||
|
|
}
|
||
|
|
else if (charCode > 0x7F)
|
||
|
|
output +=2;
|
||
|
|
else
|
||
|
|
output++;
|
||
|
|
}
|
||
|
|
return output;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Takes a String and writes it into an array as UTF8 encoded bytes.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function stringToUTF8(input, output, start) {
|
||
|
|
var pos = start;
|
||
|
|
for (var i = 0; i<input.length; i++) {
|
||
|
|
var charCode = input.charCodeAt(i);
|
||
|
|
|
||
|
|
// Check for a surrogate pair.
|
||
|
|
if (0xD800 <= charCode && charCode <= 0xDBFF) {
|
||
|
|
var lowCharCode = input.charCodeAt(++i);
|
||
|
|
if (isNaN(lowCharCode)) {
|
||
|
|
throw new Error(format(ERROR.MALFORMED_UNICODE, [charCode, lowCharCode]));
|
||
|
|
}
|
||
|
|
charCode = ((charCode - 0xD800)<<10) + (lowCharCode - 0xDC00) + 0x10000;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
if (charCode <= 0x7F) {
|
||
|
|
output[pos++] = charCode;
|
||
|
|
} else if (charCode <= 0x7FF) {
|
||
|
|
output[pos++] = charCode>>6 & 0x1F | 0xC0;
|
||
|
|
output[pos++] = charCode & 0x3F | 0x80;
|
||
|
|
} else if (charCode <= 0xFFFF) {
|
||
|
|
output[pos++] = charCode>>12 & 0x0F | 0xE0;
|
||
|
|
output[pos++] = charCode>>6 & 0x3F | 0x80;
|
||
|
|
output[pos++] = charCode & 0x3F | 0x80;
|
||
|
|
} else {
|
||
|
|
output[pos++] = charCode>>18 & 0x07 | 0xF0;
|
||
|
|
output[pos++] = charCode>>12 & 0x3F | 0x80;
|
||
|
|
output[pos++] = charCode>>6 & 0x3F | 0x80;
|
||
|
|
output[pos++] = charCode & 0x3F | 0x80;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return output;
|
||
|
|
}
|
||
|
|
|
||
|
|
function parseUTF8(input, offset, length) {
|
||
|
|
var output = "";
|
||
|
|
var utf16;
|
||
|
|
var pos = offset;
|
||
|
|
|
||
|
|
while (pos < offset+length)
|
||
|
|
{
|
||
|
|
var byte1 = input[pos++];
|
||
|
|
if (byte1 < 128)
|
||
|
|
utf16 = byte1;
|
||
|
|
else
|
||
|
|
{
|
||
|
|
var byte2 = input[pos++]-128;
|
||
|
|
if (byte2 < 0)
|
||
|
|
throw new Error(format(ERROR.MALFORMED_UTF, [byte1.toString(16), byte2.toString(16),""]));
|
||
|
|
if (byte1 < 0xE0) // 2 byte character
|
||
|
|
utf16 = 64*(byte1-0xC0) + byte2;
|
||
|
|
else
|
||
|
|
{
|
||
|
|
var byte3 = input[pos++]-128;
|
||
|
|
if (byte3 < 0)
|
||
|
|
throw new Error(format(ERROR.MALFORMED_UTF, [byte1.toString(16), byte2.toString(16), byte3.toString(16)]));
|
||
|
|
if (byte1 < 0xF0) // 3 byte character
|
||
|
|
utf16 = 4096*(byte1-0xE0) + 64*byte2 + byte3;
|
||
|
|
else
|
||
|
|
{
|
||
|
|
var byte4 = input[pos++]-128;
|
||
|
|
if (byte4 < 0)
|
||
|
|
throw new Error(format(ERROR.MALFORMED_UTF, [byte1.toString(16), byte2.toString(16), byte3.toString(16), byte4.toString(16)]));
|
||
|
|
if (byte1 < 0xF8) // 4 byte character
|
||
|
|
utf16 = 262144*(byte1-0xF0) + 4096*byte2 + 64*byte3 + byte4;
|
||
|
|
else // longer encodings are not supported
|
||
|
|
throw new Error(format(ERROR.MALFORMED_UTF, [byte1.toString(16), byte2.toString(16), byte3.toString(16), byte4.toString(16)]));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (utf16 > 0xFFFF) // 4 byte character - express as a surrogate pair
|
||
|
|
{
|
||
|
|
utf16 -= 0x10000;
|
||
|
|
output += String.fromCharCode(0xD800 + (utf16 >> 10)); // lead character
|
||
|
|
utf16 = 0xDC00 + (utf16 & 0x3FF); // trail character
|
||
|
|
}
|
||
|
|
output += String.fromCharCode(utf16);
|
||
|
|
}
|
||
|
|
return output;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Repeat keepalive requests, monitor responses.
|
||
|
|
* @ignore
|
||
|
|
*/
|
||
|
|
var Pinger = function(client, keepAliveInterval) {
|
||
|
|
this._client = client;
|
||
|
|
this._keepAliveInterval = keepAliveInterval*1000;
|
||
|
|
this.isReset = false;
|
||
|
|
|
||
|
|
var pingReq = new WireMessage(MESSAGE_TYPE.PINGREQ).encode();
|
||
|
|
|
||
|
|
var doTimeout = function (pinger) {
|
||
|
|
return function () {
|
||
|
|
return doPing.apply(pinger);
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
/** @ignore */
|
||
|
|
var doPing = function() {
|
||
|
|
if (!this.isReset) {
|
||
|
|
this._client._trace("Pinger.doPing", "Timed out");
|
||
|
|
this._client._disconnected( ERROR.PING_TIMEOUT.code , format(ERROR.PING_TIMEOUT));
|
||
|
|
} else {
|
||
|
|
this.isReset = false;
|
||
|
|
this._client._trace("Pinger.doPing", "send PINGREQ");
|
||
|
|
this._client.socket.send(pingReq);
|
||
|
|
this.timeout = setTimeout(doTimeout(this), this._keepAliveInterval);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
this.reset = function() {
|
||
|
|
this.isReset = true;
|
||
|
|
clearTimeout(this.timeout);
|
||
|
|
if (this._keepAliveInterval > 0)
|
||
|
|
this.timeout = setTimeout(doTimeout(this), this._keepAliveInterval);
|
||
|
|
};
|
||
|
|
|
||
|
|
this.cancel = function() {
|
||
|
|
clearTimeout(this.timeout);
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Monitor request completion.
|
||
|
|
* @ignore
|
||
|
|
*/
|
||
|
|
var Timeout = function(client, timeoutSeconds, action, args) {
|
||
|
|
if (!timeoutSeconds)
|
||
|
|
timeoutSeconds = 30;
|
||
|
|
|
||
|
|
var doTimeout = function (action, client, args) {
|
||
|
|
return function () {
|
||
|
|
return action.apply(client, args);
|
||
|
|
};
|
||
|
|
};
|
||
|
|
this.timeout = setTimeout(doTimeout(action, client, args), timeoutSeconds * 1000);
|
||
|
|
|
||
|
|
this.cancel = function() {
|
||
|
|
clearTimeout(this.timeout);
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Internal implementation of the Websockets MQTT V3.1 client.
|
||
|
|
*
|
||
|
|
* @name Paho.ClientImpl @constructor
|
||
|
|
* @param {String} host the DNS nameof the webSocket host.
|
||
|
|
* @param {Number} port the port number for that host.
|
||
|
|
* @param {String} clientId the MQ client identifier.
|
||
|
|
*/
|
||
|
|
var ClientImpl = function (uri, host, port, path, clientId) {
|
||
|
|
// Check dependencies are satisfied in this browser.
|
||
|
|
if (!("WebSocket" in global && global.WebSocket !== null)) {
|
||
|
|
throw new Error(format(ERROR.UNSUPPORTED, ["WebSocket"]));
|
||
|
|
}
|
||
|
|
if (!("ArrayBuffer" in global && global.ArrayBuffer !== null)) {
|
||
|
|
throw new Error(format(ERROR.UNSUPPORTED, ["ArrayBuffer"]));
|
||
|
|
}
|
||
|
|
this._trace("Paho.Client", uri, host, port, path, clientId);
|
||
|
|
|
||
|
|
this.host = host;
|
||
|
|
this.port = port;
|
||
|
|
this.path = path;
|
||
|
|
this.uri = uri;
|
||
|
|
this.clientId = clientId;
|
||
|
|
this._wsuri = null;
|
||
|
|
|
||
|
|
// Local storagekeys are qualified with the following string.
|
||
|
|
// The conditional inclusion of path in the key is for backward
|
||
|
|
// compatibility to when the path was not configurable and assumed to
|
||
|
|
// be /mqtt
|
||
|
|
this._localKey=host+":"+port+(path!="/mqtt"?":"+path:"")+":"+clientId+":";
|
||
|
|
|
||
|
|
// Create private instance-only message queue
|
||
|
|
// Internal queue of messages to be sent, in sending order.
|
||
|
|
this._msg_queue = [];
|
||
|
|
this._buffered_msg_queue = [];
|
||
|
|
|
||
|
|
// Messages we have sent and are expecting a response for, indexed by their respective message ids.
|
||
|
|
this._sentMessages = {};
|
||
|
|
|
||
|
|
// Messages we have received and acknowleged and are expecting a confirm message for
|
||
|
|
// indexed by their respective message ids.
|
||
|
|
this._receivedMessages = {};
|
||
|
|
|
||
|
|
// Internal list of callbacks to be executed when messages
|
||
|
|
// have been successfully sent over web socket, e.g. disconnect
|
||
|
|
// when it doesn't have to wait for ACK, just message is dispatched.
|
||
|
|
this._notify_msg_sent = {};
|
||
|
|
|
||
|
|
// Unique identifier for SEND messages, incrementing
|
||
|
|
// counter as messages are sent.
|
||
|
|
this._message_identifier = 1;
|
||
|
|
|
||
|
|
// Used to determine the transmission sequence of stored sent messages.
|
||
|
|
this._sequence = 0;
|
||
|
|
|
||
|
|
|
||
|
|
// Load the local state, if any, from the saved version, only restore state relevant to this client.
|
||
|
|
for (var key in localStorage)
|
||
|
|
if ( key.indexOf("Sent:"+this._localKey) === 0 || key.indexOf("Received:"+this._localKey) === 0)
|
||
|
|
this.restore(key);
|
||
|
|
};
|
||
|
|
|
||
|
|
// Messaging Client public instance members.
|
||
|
|
ClientImpl.prototype.host = null;
|
||
|
|
ClientImpl.prototype.port = null;
|
||
|
|
ClientImpl.prototype.path = null;
|
||
|
|
ClientImpl.prototype.uri = null;
|
||
|
|
ClientImpl.prototype.clientId = null;
|
||
|
|
|
||
|
|
// Messaging Client private instance members.
|
||
|
|
ClientImpl.prototype.socket = null;
|
||
|
|
/* true once we have received an acknowledgement to a CONNECT packet. */
|
||
|
|
ClientImpl.prototype.connected = false;
|
||
|
|
/* The largest message identifier allowed, may not be larger than 2**16 but
|
||
|
|
* if set smaller reduces the maximum number of outbound messages allowed.
|
||
|
|
*/
|
||
|
|
ClientImpl.prototype.maxMessageIdentifier = 65536;
|
||
|
|
ClientImpl.prototype.connectOptions = null;
|
||
|
|
ClientImpl.prototype.hostIndex = null;
|
||
|
|
ClientImpl.prototype.onConnected = null;
|
||
|
|
ClientImpl.prototype.onConnectionLost = null;
|
||
|
|
ClientImpl.prototype.onMessageDelivered = null;
|
||
|
|
ClientImpl.prototype.onMessageArrived = null;
|
||
|
|
ClientImpl.prototype.traceFunction = null;
|
||
|
|
ClientImpl.prototype._msg_queue = null;
|
||
|
|
ClientImpl.prototype._buffered_msg_queue = null;
|
||
|
|
ClientImpl.prototype._connectTimeout = null;
|
||
|
|
/* The sendPinger monitors how long we allow before we send data to prove to the server that we are alive. */
|
||
|
|
ClientImpl.prototype.sendPinger = null;
|
||
|
|
/* The receivePinger monitors how long we allow before we require evidence that the server is alive. */
|
||
|
|
ClientImpl.prototype.receivePinger = null;
|
||
|
|
ClientImpl.prototype._reconnectInterval = 1; // Reconnect Delay, starts at 1 second
|
||
|
|
ClientImpl.prototype._reconnecting = false;
|
||
|
|
ClientImpl.prototype._reconnectTimeout = null;
|
||
|
|
ClientImpl.prototype.disconnectedPublishing = false;
|
||
|
|
ClientImpl.prototype.disconnectedBufferSize = 5000;
|
||
|
|
|
||
|
|
ClientImpl.prototype.receiveBuffer = null;
|
||
|
|
|
||
|
|
ClientImpl.prototype._traceBuffer = null;
|
||
|
|
ClientImpl.prototype._MAX_TRACE_ENTRIES = 100;
|
||
|
|
|
||
|
|
ClientImpl.prototype.connect = function (connectOptions) {
|
||
|
|
var connectOptionsMasked = this._traceMask(connectOptions, "password");
|
||
|
|
this._trace("Client.connect", connectOptionsMasked, this.socket, this.connected);
|
||
|
|
|
||
|
|
if (this.connected)
|
||
|
|
throw new Error(format(ERROR.INVALID_STATE, ["already connected"]));
|
||
|
|
if (this.socket)
|
||
|
|
throw new Error(format(ERROR.INVALID_STATE, ["already connected"]));
|
||
|
|
|
||
|
|
if (this._reconnecting) {
|
||
|
|
// connect() function is called while reconnect is in progress.
|
||
|
|
// Terminate the auto reconnect process to use new connect options.
|
||
|
|
this._reconnectTimeout.cancel();
|
||
|
|
this._reconnectTimeout = null;
|
||
|
|
this._reconnecting = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
this.connectOptions = connectOptions;
|
||
|
|
this._reconnectInterval = 1;
|
||
|
|
this._reconnecting = false;
|
||
|
|
if (connectOptions.uris) {
|
||
|
|
this.hostIndex = 0;
|
||
|
|
this._doConnect(connectOptions.uris[0]);
|
||
|
|
} else {
|
||
|
|
this._doConnect(this.uri);
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
ClientImpl.prototype.subscribe = function (filter, subscribeOptions) {
|
||
|
|
this._trace("Client.subscribe", filter, subscribeOptions);
|
||
|
|
|
||
|
|
if (!this.connected)
|
||
|
|
throw new Error(format(ERROR.INVALID_STATE, ["not connected"]));
|
||
|
|
|
||
|
|
var wireMessage = new WireMessage(MESSAGE_TYPE.SUBSCRIBE);
|
||
|
|
wireMessage.topics = filter.constructor === Array ? filter : [filter];
|
||
|
|
if (subscribeOptions.qos === undefined)
|
||
|
|
subscribeOptions.qos = 0;
|
||
|
|
wireMessage.requestedQos = [];
|
||
|
|
for (var i = 0; i < wireMessage.topics.length; i++)
|
||
|
|
wireMessage.requestedQos[i] = subscribeOptions.qos;
|
||
|
|
|
||
|
|
if (subscribeOptions.onSuccess) {
|
||
|
|
wireMessage.onSuccess = function(grantedQos) {subscribeOptions.onSuccess({invocationContext:subscribeOptions.invocationContext,grantedQos:grantedQos});};
|
||
|
|
}
|
||
|
|
|
||
|
|
if (subscribeOptions.onFailure) {
|
||
|
|
wireMessage.onFailure = function(errorCode) {subscribeOptions.onFailure({invocationContext:subscribeOptions.invocationContext,errorCode:errorCode, errorMessage:format(errorCode)});};
|
||
|
|
}
|
||
|
|
|
||
|
|
if (subscribeOptions.timeout) {
|
||
|
|
wireMessage.timeOut = new Timeout(this, subscribeOptions.timeout, subscribeOptions.onFailure,
|
||
|
|
[{invocationContext:subscribeOptions.invocationContext,
|
||
|
|
errorCode:ERROR.SUBSCRIBE_TIMEOUT.code,
|
||
|
|
errorMessage:format(ERROR.SUBSCRIBE_TIMEOUT)}]);
|
||
|
|
}
|
||
|
|
|
||
|
|
// All subscriptions return a SUBACK.
|
||
|
|
this._requires_ack(wireMessage);
|
||
|
|
this._schedule_message(wireMessage);
|
||
|
|
};
|
||
|
|
|
||
|
|
/** @ignore */
|
||
|
|
ClientImpl.prototype.unsubscribe = function(filter, unsubscribeOptions) {
|
||
|
|
this._trace("Client.unsubscribe", filter, unsubscribeOptions);
|
||
|
|
|
||
|
|
if (!this.connected)
|
||
|
|
throw new Error(format(ERROR.INVALID_STATE, ["not connected"]));
|
||
|
|
|
||
|
|
var wireMessage = new WireMessage(MESSAGE_TYPE.UNSUBSCRIBE);
|
||
|
|
wireMessage.topics = filter.constructor === Array ? filter : [filter];
|
||
|
|
|
||
|
|
if (unsubscribeOptions.onSuccess) {
|
||
|
|
wireMessage.callback = function() {unsubscribeOptions.onSuccess({invocationContext:unsubscribeOptions.invocationContext});};
|
||
|
|
}
|
||
|
|
if (unsubscribeOptions.timeout) {
|
||
|
|
wireMessage.timeOut = new Timeout(this, unsubscribeOptions.timeout, unsubscribeOptions.onFailure,
|
||
|
|
[{invocationContext:unsubscribeOptions.invocationContext,
|
||
|
|
errorCode:ERROR.UNSUBSCRIBE_TIMEOUT.code,
|
||
|
|
errorMessage:format(ERROR.UNSUBSCRIBE_TIMEOUT)}]);
|
||
|
|
}
|
||
|
|
|
||
|
|
// All unsubscribes return a SUBACK.
|
||
|
|
this._requires_ack(wireMessage);
|
||
|
|
this._schedule_message(wireMessage);
|
||
|
|
};
|
||
|
|
|
||
|
|
ClientImpl.prototype.send = function (message) {
|
||
|
|
this._trace("Client.send", message);
|
||
|
|
|
||
|
|
var wireMessage = new WireMessage(MESSAGE_TYPE.PUBLISH);
|
||
|
|
wireMessage.payloadMessage = message;
|
||
|
|
|
||
|
|
if (this.connected) {
|
||
|
|
// Mark qos 1 & 2 message as "ACK required"
|
||
|
|
// For qos 0 message, invoke onMessageDelivered callback if there is one.
|
||
|
|
// Then schedule the message.
|
||
|
|
if (message.qos > 0) {
|
||
|
|
this._requires_ack(wireMessage);
|
||
|
|
} else if (this.onMessageDelivered) {
|
||
|
|
this._notify_msg_sent[wireMessage] = this.onMessageDelivered(wireMessage.payloadMessage);
|
||
|
|
}
|
||
|
|
this._schedule_message(wireMessage);
|
||
|
|
} else {
|
||
|
|
// Currently disconnected, will not schedule this message
|
||
|
|
// Check if reconnecting is in progress and disconnected publish is enabled.
|
||
|
|
if (this._reconnecting && this.disconnectedPublishing) {
|
||
|
|
// Check the limit which include the "required ACK" messages
|
||
|
|
var messageCount = Object.keys(this._sentMessages).length + this._buffered_msg_queue.length;
|
||
|
|
if (messageCount > this.disconnectedBufferSize) {
|
||
|
|
throw new Error(format(ERROR.BUFFER_FULL, [this.disconnectedBufferSize]));
|
||
|
|
} else {
|
||
|
|
if (message.qos > 0) {
|
||
|
|
// Mark this message as "ACK required"
|
||
|
|
this._requires_ack(wireMessage);
|
||
|
|
} else {
|
||
|
|
wireMessage.sequence = ++this._sequence;
|
||
|
|
// Add messages in fifo order to array, by adding to start
|
||
|
|
this._buffered_msg_queue.unshift(wireMessage);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
throw new Error(format(ERROR.INVALID_STATE, ["not connected"]));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
ClientImpl.prototype.disconnect = function () {
|
||
|
|
this._trace("Client.disconnect");
|
||
|
|
|
||
|
|
if (this._reconnecting) {
|
||
|
|
// disconnect() function is called while reconnect is in progress.
|
||
|
|
// Terminate the auto reconnect process.
|
||
|
|
this._reconnectTimeout.cancel();
|
||
|
|
this._reconnectTimeout = null;
|
||
|
|
this._reconnecting = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!this.socket)
|
||
|
|
throw new Error(format(ERROR.INVALID_STATE, ["not connecting or connected"]));
|
||
|
|
|
||
|
|
var wireMessage = new WireMessage(MESSAGE_TYPE.DISCONNECT);
|
||
|
|
|
||
|
|
// Run the disconnected call back as soon as the message has been sent,
|
||
|
|
// in case of a failure later on in the disconnect processing.
|
||
|
|
// as a consequence, the _disconected call back may be run several times.
|
||
|
|
this._notify_msg_sent[wireMessage] = scope(this._disconnected, this);
|
||
|
|
|
||
|
|
this._schedule_message(wireMessage);
|
||
|
|
};
|
||
|
|
|
||
|
|
ClientImpl.prototype.getTraceLog = function () {
|
||
|
|
if ( this._traceBuffer !== null ) {
|
||
|
|
this._trace("Client.getTraceLog", new Date());
|
||
|
|
this._trace("Client.getTraceLog in flight messages", this._sentMessages.length);
|
||
|
|
for (var key in this._sentMessages)
|
||
|
|
this._trace("_sentMessages ",key, this._sentMessages[key]);
|
||
|
|
for (var key in this._receivedMessages)
|
||
|
|
this._trace("_receivedMessages ",key, this._receivedMessages[key]);
|
||
|
|
|
||
|
|
return this._traceBuffer;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
ClientImpl.prototype.startTrace = function () {
|
||
|
|
if ( this._traceBuffer === null ) {
|
||
|
|
this._traceBuffer = [];
|
||
|
|
}
|
||
|
|
this._trace("Client.startTrace", new Date(), version);
|
||
|
|
};
|
||
|
|
|
||
|
|
ClientImpl.prototype.stopTrace = function () {
|
||
|
|
delete this._traceBuffer;
|
||
|
|
};
|
||
|
|
|
||
|
|
ClientImpl.prototype._doConnect = function (wsurl) {
|
||
|
|
// When the socket is open, this client will send the CONNECT WireMessage using the saved parameters.
|
||
|
|
if (this.connectOptions.useSSL) {
|
||
|
|
var uriParts = wsurl.split(":");
|
||
|
|
uriParts[0] = "wss";
|
||
|
|
wsurl = uriParts.join(":");
|
||
|
|
}
|
||
|
|
this._wsuri = wsurl;
|
||
|
|
this.connected = false;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
if (this.connectOptions.mqttVersion < 4) {
|
||
|
|
this.socket = new WebSocket(wsurl, ["mqttv3.1"]);
|
||
|
|
} else {
|
||
|
|
this.socket = new WebSocket(wsurl, ["mqtt"]);
|
||
|
|
}
|
||
|
|
this.socket.binaryType = "arraybuffer";
|
||
|
|
this.socket.onopen = scope(this._on_socket_open, this);
|
||
|
|
this.socket.onmessage = scope(this._on_socket_message, this);
|
||
|
|
this.socket.onerror = scope(this._on_socket_error, this);
|
||
|
|
this.socket.onclose = scope(this._on_socket_close, this);
|
||
|
|
|
||
|
|
this.sendPinger = new Pinger(this, this.connectOptions.keepAliveInterval);
|
||
|
|
this.receivePinger = new Pinger(this, this.connectOptions.keepAliveInterval);
|
||
|
|
if (this._connectTimeout) {
|
||
|
|
this._connectTimeout.cancel();
|
||
|
|
this._connectTimeout = null;
|
||
|
|
}
|
||
|
|
this._connectTimeout = new Timeout(this, this.connectOptions.timeout, this._disconnected, [ERROR.CONNECT_TIMEOUT.code, format(ERROR.CONNECT_TIMEOUT)]);
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
// Schedule a new message to be sent over the WebSockets
|
||
|
|
// connection. CONNECT messages cause WebSocket connection
|
||
|
|
// to be started. All other messages are queued internally
|
||
|
|
// until this has happened. When WS connection starts, process
|
||
|
|
// all outstanding messages.
|
||
|
|
ClientImpl.prototype._schedule_message = function (message) {
|
||
|
|
// Add messages in fifo order to array, by adding to start
|
||
|
|
this._msg_queue.unshift(message);
|
||
|
|
// Process outstanding messages in the queue if we have an open socket, and have received CONNACK.
|
||
|
|
if (this.connected) {
|
||
|
|
this._process_queue();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
ClientImpl.prototype.store = function(prefix, wireMessage) {
|
||
|
|
var storedMessage = {type:wireMessage.type, messageIdentifier:wireMessage.messageIdentifier, version:1};
|
||
|
|
|
||
|
|
switch(wireMessage.type) {
|
||
|
|
case MESSAGE_TYPE.PUBLISH:
|
||
|
|
if(wireMessage.pubRecReceived)
|
||
|
|
storedMessage.pubRecReceived = true;
|
||
|
|
|
||
|
|
// Convert the payload to a hex string.
|
||
|
|
storedMessage.payloadMessage = {};
|
||
|
|
var hex = "";
|
||
|
|
var messageBytes = wireMessage.payloadMessage.payloadBytes;
|
||
|
|
for (var i=0; i<messageBytes.length; i++) {
|
||
|
|
if (messageBytes[i] <= 0xF)
|
||
|
|
hex = hex+"0"+messageBytes[i].toString(16);
|
||
|
|
else
|
||
|
|
hex = hex+messageBytes[i].toString(16);
|
||
|
|
}
|
||
|
|
storedMessage.payloadMessage.payloadHex = hex;
|
||
|
|
|
||
|
|
storedMessage.payloadMessage.qos = wireMessage.payloadMessage.qos;
|
||
|
|
storedMessage.payloadMessage.destinationName = wireMessage.payloadMessage.destinationName;
|
||
|
|
if (wireMessage.payloadMessage.duplicate)
|
||
|
|
storedMessage.payloadMessage.duplicate = true;
|
||
|
|
if (wireMessage.payloadMessage.retained)
|
||
|
|
storedMessage.payloadMessage.retained = true;
|
||
|
|
|
||
|
|
// Add a sequence number to sent messages.
|
||
|
|
if ( prefix.indexOf("Sent:") === 0 ) {
|
||
|
|
if ( wireMessage.sequence === undefined )
|
||
|
|
wireMessage.sequence = ++this._sequence;
|
||
|
|
storedMessage.sequence = wireMessage.sequence;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
throw Error(format(ERROR.INVALID_STORED_DATA, [prefix+this._localKey+wireMessage.messageIdentifier, storedMessage]));
|
||
|
|
}
|
||
|
|
localStorage.setItem(prefix+this._localKey+wireMessage.messageIdentifier, JSON.stringify(storedMessage));
|
||
|
|
};
|
||
|
|
|
||
|
|
ClientImpl.prototype.restore = function(key) {
|
||
|
|
var value = localStorage.getItem(key);
|
||
|
|
var storedMessage = JSON.parse(value);
|
||
|
|
|
||
|
|
var wireMessage = new WireMessage(storedMessage.type, storedMessage);
|
||
|
|
|
||
|
|
switch(storedMessage.type) {
|
||
|
|
case MESSAGE_TYPE.PUBLISH:
|
||
|
|
// Replace the payload message with a Message object.
|
||
|
|
var hex = storedMessage.payloadMessage.payloadHex;
|
||
|
|
var buffer = new ArrayBuffer((hex.length)/2);
|
||
|
|
var byteStream = new Uint8Array(buffer);
|
||
|
|
var i = 0;
|
||
|
|
while (hex.length >= 2) {
|
||
|
|
var x = parseInt(hex.substring(0, 2), 16);
|
||
|
|
hex = hex.substring(2, hex.length);
|
||
|
|
byteStream[i++] = x;
|
||
|
|
}
|
||
|
|
var payloadMessage = new Message(byteStream);
|
||
|
|
|
||
|
|
payloadMessage.qos = storedMessage.payloadMessage.qos;
|
||
|
|
payloadMessage.destinationName = storedMessage.payloadMessage.destinationName;
|
||
|
|
if (storedMessage.payloadMessage.duplicate)
|
||
|
|
payloadMessage.duplicate = true;
|
||
|
|
if (storedMessage.payloadMessage.retained)
|
||
|
|
payloadMessage.retained = true;
|
||
|
|
wireMessage.payloadMessage = payloadMessage;
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
throw Error(format(ERROR.INVALID_STORED_DATA, [key, value]));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (key.indexOf("Sent:"+this._localKey) === 0) {
|
||
|
|
wireMessage.payloadMessage.duplicate = true;
|
||
|
|
this._sentMessages[wireMessage.messageIdentifier] = wireMessage;
|
||
|
|
} else if (key.indexOf("Received:"+this._localKey) === 0) {
|
||
|
|
this._receivedMessages[wireMessage.messageIdentifier] = wireMessage;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
ClientImpl.prototype._process_queue = function () {
|
||
|
|
var message = null;
|
||
|
|
|
||
|
|
// Send all queued messages down socket connection
|
||
|
|
while ((message = this._msg_queue.pop())) {
|
||
|
|
this._socket_send(message);
|
||
|
|
// Notify listeners that message was successfully sent
|
||
|
|
if (this._notify_msg_sent[message]) {
|
||
|
|
this._notify_msg_sent[message]();
|
||
|
|
delete this._notify_msg_sent[message];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Expect an ACK response for this message. Add message to the set of in progress
|
||
|
|
* messages and set an unused identifier in this message.
|
||
|
|
* @ignore
|
||
|
|
*/
|
||
|
|
ClientImpl.prototype._requires_ack = function (wireMessage) {
|
||
|
|
var messageCount = Object.keys(this._sentMessages).length;
|
||
|
|
if (messageCount > this.maxMessageIdentifier)
|
||
|
|
throw Error ("Too many messages:"+messageCount);
|
||
|
|
|
||
|
|
while(this._sentMessages[this._message_identifier] !== undefined) {
|
||
|
|
this._message_identifier++;
|
||
|
|
}
|
||
|
|
wireMessage.messageIdentifier = this._message_identifier;
|
||
|
|
this._sentMessages[wireMessage.messageIdentifier] = wireMessage;
|
||
|
|
if (wireMessage.type === MESSAGE_TYPE.PUBLISH) {
|
||
|
|
this.store("Sent:", wireMessage);
|
||
|
|
}
|
||
|
|
if (this._message_identifier === this.maxMessageIdentifier) {
|
||
|
|
this._message_identifier = 1;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Called when the underlying websocket has been opened.
|
||
|
|
* @ignore
|
||
|
|
*/
|
||
|
|
ClientImpl.prototype._on_socket_open = function () {
|
||
|
|
// Create the CONNECT message object.
|
||
|
|
var wireMessage = new WireMessage(MESSAGE_TYPE.CONNECT, this.connectOptions);
|
||
|
|
wireMessage.clientId = this.clientId;
|
||
|
|
this._socket_send(wireMessage);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Called when the underlying websocket has received a complete packet.
|
||
|
|
* @ignore
|
||
|
|
*/
|
||
|
|
ClientImpl.prototype._on_socket_message = function (event) {
|
||
|
|
this._trace("Client._on_socket_message", event.data);
|
||
|
|
var messages = this._deframeMessages(event.data);
|
||
|
|
for (var i = 0; i < messages.length; i+=1) {
|
||
|
|
this._handleMessage(messages[i]);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
ClientImpl.prototype._deframeMessages = function(data) {
|
||
|
|
var byteArray = new Uint8Array(data);
|
||
|
|
var messages = [];
|
||
|
|
if (this.receiveBuffer) {
|
||
|
|
var newData = new Uint8Array(this.receiveBuffer.length+byteArray.length);
|
||
|
|
newData.set(this.receiveBuffer);
|
||
|
|
newData.set(byteArray,this.receiveBuffer.length);
|
||
|
|
byteArray = newData;
|
||
|
|
delete this.receiveBuffer;
|
||
|
|
}
|
||
|
|
try {
|
||
|
|
var offset = 0;
|
||
|
|
while(offset < byteArray.length) {
|
||
|
|
var result = decodeMessage(byteArray,offset);
|
||
|
|
var wireMessage = result[0];
|
||
|
|
offset = result[1];
|
||
|
|
if (wireMessage !== null) {
|
||
|
|
messages.push(wireMessage);
|
||
|
|
} else {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (offset < byteArray.length) {
|
||
|
|
this.receiveBuffer = byteArray.subarray(offset);
|
||
|
|
}
|
||
|
|
} catch (error) {
|
||
|
|
var errorStack = ((error.hasOwnProperty("stack") == "undefined") ? error.stack.toString() : "No Error Stack Available");
|
||
|
|
this._disconnected(ERROR.INTERNAL_ERROR.code , format(ERROR.INTERNAL_ERROR, [error.message,errorStack]));
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
return messages;
|
||
|
|
};
|
||
|
|
|
||
|
|
ClientImpl.prototype._handleMessage = function(wireMessage) {
|
||
|
|
|
||
|
|
this._trace("Client._handleMessage", wireMessage);
|
||
|
|
|
||
|
|
try {
|
||
|
|
switch(wireMessage.type) {
|
||
|
|
case MESSAGE_TYPE.CONNACK:
|
||
|
|
this._connectTimeout.cancel();
|
||
|
|
if (this._reconnectTimeout)
|
||
|
|
this._reconnectTimeout.cancel();
|
||
|
|
|
||
|
|
// If we have started using clean session then clear up the local state.
|
||
|
|
if (this.connectOptions.cleanSession) {
|
||
|
|
for (var key in this._sentMessages) {
|
||
|
|
var sentMessage = this._sentMessages[key];
|
||
|
|
localStorage.removeItem("Sent:"+this._localKey+sentMessage.messageIdentifier);
|
||
|
|
}
|
||
|
|
this._sentMessages = {};
|
||
|
|
|
||
|
|
for (var key in this._receivedMessages) {
|
||
|
|
var receivedMessage = this._receivedMessages[key];
|
||
|
|
localStorage.removeItem("Received:"+this._localKey+receivedMessage.messageIdentifier);
|
||
|
|
}
|
||
|
|
this._receivedMessages = {};
|
||
|
|
}
|
||
|
|
// Client connected and ready for business.
|
||
|
|
if (wireMessage.returnCode === 0) {
|
||
|
|
|
||
|
|
this.connected = true;
|
||
|
|
// Jump to the end of the list of uris and stop looking for a good host.
|
||
|
|
|
||
|
|
if (this.connectOptions.uris)
|
||
|
|
this.hostIndex = this.connectOptions.uris.length;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
this._disconnected(ERROR.CONNACK_RETURNCODE.code , format(ERROR.CONNACK_RETURNCODE, [wireMessage.returnCode, CONNACK_RC[wireMessage.returnCode]]));
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Resend messages.
|
||
|
|
var sequencedMessages = [];
|
||
|
|
for (var msgId in this._sentMessages) {
|
||
|
|
if (this._sentMessages.hasOwnProperty(msgId))
|
||
|
|
sequencedMessages.push(this._sentMessages[msgId]);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Also schedule qos 0 buffered messages if any
|
||
|
|
if (this._buffered_msg_queue.length > 0) {
|
||
|
|
var msg = null;
|
||
|
|
while ((msg = this._buffered_msg_queue.pop())) {
|
||
|
|
sequencedMessages.push(msg);
|
||
|
|
if (this.onMessageDelivered)
|
||
|
|
this._notify_msg_sent[msg] = this.onMessageDelivered(msg.payloadMessage);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Sort sentMessages into the original sent order.
|
||
|
|
var sequencedMessages = sequencedMessages.sort(function(a,b) {return a.sequence - b.sequence;} );
|
||
|
|
for (var i=0, len=sequencedMessages.length; i<len; i++) {
|
||
|
|
var sentMessage = sequencedMessages[i];
|
||
|
|
if (sentMessage.type == MESSAGE_TYPE.PUBLISH && sentMessage.pubRecReceived) {
|
||
|
|
var pubRelMessage = new WireMessage(MESSAGE_TYPE.PUBREL, {messageIdentifier:sentMessage.messageIdentifier});
|
||
|
|
this._schedule_message(pubRelMessage);
|
||
|
|
} else {
|
||
|
|
this._schedule_message(sentMessage);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Execute the connectOptions.onSuccess callback if there is one.
|
||
|
|
// Will also now return if this connection was the result of an automatic
|
||
|
|
// reconnect and which URI was successfully connected to.
|
||
|
|
if (this.connectOptions.onSuccess) {
|
||
|
|
this.connectOptions.onSuccess({invocationContext:this.connectOptions.invocationContext});
|
||
|
|
}
|
||
|
|
|
||
|
|
var reconnected = false;
|
||
|
|
if (this._reconnecting) {
|
||
|
|
reconnected = true;
|
||
|
|
this._reconnectInterval = 1;
|
||
|
|
this._reconnecting = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Execute the onConnected callback if there is one.
|
||
|
|
this._connected(reconnected, this._wsuri);
|
||
|
|
|
||
|
|
// Process all queued messages now that the connection is established.
|
||
|
|
this._process_queue();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.PUBLISH:
|
||
|
|
this._receivePublish(wireMessage);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.PUBACK:
|
||
|
|
var sentMessage = this._sentMessages[wireMessage.messageIdentifier];
|
||
|
|
// If this is a re flow of a PUBACK after we have restarted receivedMessage will not exist.
|
||
|
|
if (sentMessage) {
|
||
|
|
delete this._sentMessages[wireMessage.messageIdentifier];
|
||
|
|
localStorage.removeItem("Sent:"+this._localKey+wireMessage.messageIdentifier);
|
||
|
|
if (this.onMessageDelivered)
|
||
|
|
this.onMessageDelivered(sentMessage.payloadMessage);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.PUBREC:
|
||
|
|
var sentMessage = this._sentMessages[wireMessage.messageIdentifier];
|
||
|
|
// If this is a re flow of a PUBREC after we have restarted receivedMessage will not exist.
|
||
|
|
if (sentMessage) {
|
||
|
|
sentMessage.pubRecReceived = true;
|
||
|
|
var pubRelMessage = new WireMessage(MESSAGE_TYPE.PUBREL, {messageIdentifier:wireMessage.messageIdentifier});
|
||
|
|
this.store("Sent:", sentMessage);
|
||
|
|
this._schedule_message(pubRelMessage);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.PUBREL:
|
||
|
|
var receivedMessage = this._receivedMessages[wireMessage.messageIdentifier];
|
||
|
|
localStorage.removeItem("Received:"+this._localKey+wireMessage.messageIdentifier);
|
||
|
|
// If this is a re flow of a PUBREL after we have restarted receivedMessage will not exist.
|
||
|
|
if (receivedMessage) {
|
||
|
|
this._receiveMessage(receivedMessage);
|
||
|
|
delete this._receivedMessages[wireMessage.messageIdentifier];
|
||
|
|
}
|
||
|
|
// Always flow PubComp, we may have previously flowed PubComp but the server lost it and restarted.
|
||
|
|
var pubCompMessage = new WireMessage(MESSAGE_TYPE.PUBCOMP, {messageIdentifier:wireMessage.messageIdentifier});
|
||
|
|
this._schedule_message(pubCompMessage);
|
||
|
|
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.PUBCOMP:
|
||
|
|
var sentMessage = this._sentMessages[wireMessage.messageIdentifier];
|
||
|
|
delete this._sentMessages[wireMessage.messageIdentifier];
|
||
|
|
localStorage.removeItem("Sent:"+this._localKey+wireMessage.messageIdentifier);
|
||
|
|
if (this.onMessageDelivered)
|
||
|
|
this.onMessageDelivered(sentMessage.payloadMessage);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.SUBACK:
|
||
|
|
var sentMessage = this._sentMessages[wireMessage.messageIdentifier];
|
||
|
|
if (sentMessage) {
|
||
|
|
if(sentMessage.timeOut)
|
||
|
|
sentMessage.timeOut.cancel();
|
||
|
|
// This will need to be fixed when we add multiple topic support
|
||
|
|
if (wireMessage.returnCode[0] === 0x80) {
|
||
|
|
if (sentMessage.onFailure) {
|
||
|
|
sentMessage.onFailure(wireMessage.returnCode);
|
||
|
|
}
|
||
|
|
} else if (sentMessage.onSuccess) {
|
||
|
|
sentMessage.onSuccess(wireMessage.returnCode);
|
||
|
|
}
|
||
|
|
delete this._sentMessages[wireMessage.messageIdentifier];
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.UNSUBACK:
|
||
|
|
var sentMessage = this._sentMessages[wireMessage.messageIdentifier];
|
||
|
|
if (sentMessage) {
|
||
|
|
if (sentMessage.timeOut)
|
||
|
|
sentMessage.timeOut.cancel();
|
||
|
|
if (sentMessage.callback) {
|
||
|
|
sentMessage.callback();
|
||
|
|
}
|
||
|
|
delete this._sentMessages[wireMessage.messageIdentifier];
|
||
|
|
}
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.PINGRESP:
|
||
|
|
/* The sendPinger or receivePinger may have sent a ping, the receivePinger has already been reset. */
|
||
|
|
this.sendPinger.reset();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MESSAGE_TYPE.DISCONNECT:
|
||
|
|
// Clients do not expect to receive disconnect packets.
|
||
|
|
this._disconnected(ERROR.INVALID_MQTT_MESSAGE_TYPE.code , format(ERROR.INVALID_MQTT_MESSAGE_TYPE, [wireMessage.type]));
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
this._disconnected(ERROR.INVALID_MQTT_MESSAGE_TYPE.code , format(ERROR.INVALID_MQTT_MESSAGE_TYPE, [wireMessage.type]));
|
||
|
|
}
|
||
|
|
} catch (error) {
|
||
|
|
var errorStack = ((error.hasOwnProperty("stack") == "undefined") ? error.stack.toString() : "No Error Stack Available");
|
||
|
|
this._disconnected(ERROR.INTERNAL_ERROR.code , format(ERROR.INTERNAL_ERROR, [error.message,errorStack]));
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/** @ignore */
|
||
|
|
ClientImpl.prototype._on_socket_error = function (error) {
|
||
|
|
if (!this._reconnecting) {
|
||
|
|
this._disconnected(ERROR.SOCKET_ERROR.code , format(ERROR.SOCKET_ERROR, [error.data]));
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/** @ignore */
|
||
|
|
ClientImpl.prototype._on_socket_close = function () {
|
||
|
|
if (!this._reconnecting) {
|
||
|
|
this._disconnected(ERROR.SOCKET_CLOSE.code , format(ERROR.SOCKET_CLOSE));
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/** @ignore */
|
||
|
|
ClientImpl.prototype._socket_send = function (wireMessage) {
|
||
|
|
|
||
|
|
if (wireMessage.type == 1) {
|
||
|
|
var wireMessageMasked = this._traceMask(wireMessage, "password");
|
||
|
|
this._trace("Client._socket_send", wireMessageMasked);
|
||
|
|
}
|
||
|
|
else this._trace("Client._socket_send", wireMessage);
|
||
|
|
|
||
|
|
this.socket.send(wireMessage.encode());
|
||
|
|
/* We have proved to the server we are alive. */
|
||
|
|
this.sendPinger.reset();
|
||
|
|
};
|
||
|
|
|
||
|
|
/** @ignore */
|
||
|
|
ClientImpl.prototype._receivePublish = function (wireMessage) {
|
||
|
|
switch(wireMessage.payloadMessage.qos) {
|
||
|
|
case "undefined":
|
||
|
|
case 0:
|
||
|
|
this._receiveMessage(wireMessage);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 1:
|
||
|
|
var pubAckMessage = new WireMessage(MESSAGE_TYPE.PUBACK, {messageIdentifier:wireMessage.messageIdentifier});
|
||
|
|
this._schedule_message(pubAckMessage);
|
||
|
|
this._receiveMessage(wireMessage);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 2:
|
||
|
|
this._receivedMessages[wireMessage.messageIdentifier] = wireMessage;
|
||
|
|
this.store("Received:", wireMessage);
|
||
|
|
var pubRecMessage = new WireMessage(MESSAGE_TYPE.PUBREC, {messageIdentifier:wireMessage.messageIdentifier});
|
||
|
|
this._schedule_message(pubRecMessage);
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
throw Error("Invaild qos=" + wireMessage.payloadMessage.qos);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/** @ignore */
|
||
|
|
ClientImpl.prototype._receiveMessage = function (wireMessage) {
|
||
|
|
if (this.onMessageArrived) {
|
||
|
|
this.onMessageArrived(wireMessage.payloadMessage);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Client has connected.
|
||
|
|
* @param {reconnect} [boolean] indicate if this was a result of reconnect operation.
|
||
|
|
* @param {uri} [string] fully qualified WebSocket URI of the server.
|
||
|
|
*/
|
||
|
|
ClientImpl.prototype._connected = function (reconnect, uri) {
|
||
|
|
// Execute the onConnected callback if there is one.
|
||
|
|
if (this.onConnected)
|
||
|
|
this.onConnected(reconnect, uri);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Attempts to reconnect the client to the server.
|
||
|
|
* For each reconnect attempt, will double the reconnect interval
|
||
|
|
* up to 128 seconds.
|
||
|
|
*/
|
||
|
|
ClientImpl.prototype._reconnect = function () {
|
||
|
|
this._trace("Client._reconnect");
|
||
|
|
if (!this.connected) {
|
||
|
|
this._reconnecting = true;
|
||
|
|
this.sendPinger.cancel();
|
||
|
|
this.receivePinger.cancel();
|
||
|
|
if (this._reconnectInterval < 128)
|
||
|
|
this._reconnectInterval = this._reconnectInterval * 2;
|
||
|
|
if (this.connectOptions.uris) {
|
||
|
|
this.hostIndex = 0;
|
||
|
|
this._doConnect(this.connectOptions.uris[0]);
|
||
|
|
} else {
|
||
|
|
this._doConnect(this.uri);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Client has disconnected either at its own request or because the server
|
||
|
|
* or network disconnected it. Remove all non-durable state.
|
||
|
|
* @param {errorCode} [number] the error number.
|
||
|
|
* @param {errorText} [string] the error text.
|
||
|
|
* @ignore
|
||
|
|
*/
|
||
|
|
ClientImpl.prototype._disconnected = function (errorCode, errorText) {
|
||
|
|
this._trace("Client._disconnected", errorCode, errorText);
|
||
|
|
|
||
|
|
if (errorCode !== undefined && this._reconnecting) {
|
||
|
|
//Continue automatic reconnect process
|
||
|
|
this._reconnectTimeout = new Timeout(this, this._reconnectInterval, this._reconnect);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
this.sendPinger.cancel();
|
||
|
|
this.receivePinger.cancel();
|
||
|
|
if (this._connectTimeout) {
|
||
|
|
this._connectTimeout.cancel();
|
||
|
|
this._connectTimeout = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Clear message buffers.
|
||
|
|
this._msg_queue = [];
|
||
|
|
this._buffered_msg_queue = [];
|
||
|
|
this._notify_msg_sent = {};
|
||
|
|
|
||
|
|
if (this.socket) {
|
||
|
|
// Cancel all socket callbacks so that they cannot be driven again by this socket.
|
||
|
|
this.socket.onopen = null;
|
||
|
|
this.socket.onmessage = null;
|
||
|
|
this.socket.onerror = null;
|
||
|
|
this.socket.onclose = null;
|
||
|
|
if (this.socket.readyState === 1)
|
||
|
|
this.socket.close();
|
||
|
|
delete this.socket;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.connectOptions.uris && this.hostIndex < this.connectOptions.uris.length-1) {
|
||
|
|
// Try the next host.
|
||
|
|
this.hostIndex++;
|
||
|
|
this._doConnect(this.connectOptions.uris[this.hostIndex]);
|
||
|
|
} else {
|
||
|
|
|
||
|
|
if (errorCode === undefined) {
|
||
|
|
errorCode = ERROR.OK.code;
|
||
|
|
errorText = format(ERROR.OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Run any application callbacks last as they may attempt to reconnect and hence create a new socket.
|
||
|
|
if (this.connected) {
|
||
|
|
this.connected = false;
|
||
|
|
// Execute the connectionLostCallback if there is one, and we were connected.
|
||
|
|
if (this.onConnectionLost) {
|
||
|
|
this.onConnectionLost({errorCode:errorCode, errorMessage:errorText, reconnect:this.connectOptions.reconnect, uri:this._wsuri});
|
||
|
|
}
|
||
|
|
if (errorCode !== ERROR.OK.code && this.connectOptions.reconnect) {
|
||
|
|
// Start automatic reconnect process for the very first time since last successful connect.
|
||
|
|
this._reconnectInterval = 1;
|
||
|
|
this._reconnect();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
// Otherwise we never had a connection, so indicate that the connect has failed.
|
||
|
|
if (this.connectOptions.mqttVersion === 4 && this.connectOptions.mqttVersionExplicit === false) {
|
||
|
|
this._trace("Failed to connect V4, dropping back to V3");
|
||
|
|
this.connectOptions.mqttVersion = 3;
|
||
|
|
if (this.connectOptions.uris) {
|
||
|
|
this.hostIndex = 0;
|
||
|
|
this._doConnect(this.connectOptions.uris[0]);
|
||
|
|
} else {
|
||
|
|
this._doConnect(this.uri);
|
||
|
|
}
|
||
|
|
} else if(this.connectOptions.onFailure) {
|
||
|
|
this.connectOptions.onFailure({invocationContext:this.connectOptions.invocationContext, errorCode:errorCode, errorMessage:errorText});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/** @ignore */
|
||
|
|
ClientImpl.prototype._trace = function () {
|
||
|
|
// Pass trace message back to client's callback function
|
||
|
|
if (this.traceFunction) {
|
||
|
|
var args = Array.prototype.slice.call(arguments);
|
||
|
|
for (var i in args)
|
||
|
|
{
|
||
|
|
if (typeof args[i] !== "undefined")
|
||
|
|
args.splice(i, 1, JSON.stringify(args[i]));
|
||
|
|
}
|
||
|
|
var record = args.join("");
|
||
|
|
this.traceFunction ({severity: "Debug", message: record });
|
||
|
|
}
|
||
|
|
|
||
|
|
//buffer style trace
|
||
|
|
if ( this._traceBuffer !== null ) {
|
||
|
|
for (var i = 0, max = arguments.length; i < max; i++) {
|
||
|
|
if ( this._traceBuffer.length == this._MAX_TRACE_ENTRIES ) {
|
||
|
|
this._traceBuffer.shift();
|
||
|
|
}
|
||
|
|
if (i === 0) this._traceBuffer.push(arguments[i]);
|
||
|
|
else if (typeof arguments[i] === "undefined" ) this._traceBuffer.push(arguments[i]);
|
||
|
|
else this._traceBuffer.push(" "+JSON.stringify(arguments[i]));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/** @ignore */
|
||
|
|
ClientImpl.prototype._traceMask = function (traceObject, masked) {
|
||
|
|
var traceObjectMasked = {};
|
||
|
|
for (var attr in traceObject) {
|
||
|
|
if (traceObject.hasOwnProperty(attr)) {
|
||
|
|
if (attr == masked)
|
||
|
|
traceObjectMasked[attr] = "******";
|
||
|
|
else
|
||
|
|
traceObjectMasked[attr] = traceObject[attr];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return traceObjectMasked;
|
||
|
|
};
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
// Public Programming interface.
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The JavaScript application communicates to the server using a {@link Paho.Client} object.
|
||
|
|
* <p>
|
||
|
|
* Most applications will create just one Client object and then call its connect() method,
|
||
|
|
* however applications can create more than one Client object if they wish.
|
||
|
|
* In this case the combination of host, port and clientId attributes must be different for each Client object.
|
||
|
|
* <p>
|
||
|
|
* The send, subscribe and unsubscribe methods are implemented as asynchronous JavaScript methods
|
||
|
|
* (even though the underlying protocol exchange might be synchronous in nature).
|
||
|
|
* This means they signal their completion by calling back to the application,
|
||
|
|
* via Success or Failure callback functions provided by the application on the method in question.
|
||
|
|
* Such callbacks are called at most once per method invocation and do not persist beyond the lifetime
|
||
|
|
* of the script that made the invocation.
|
||
|
|
* <p>
|
||
|
|
* In contrast there are some callback functions, most notably <i>onMessageArrived</i>,
|
||
|
|
* that are defined on the {@link Paho.Client} object.
|
||
|
|
* These may get called multiple times, and aren't directly related to specific method invocations made by the client.
|
||
|
|
*
|
||
|
|
* @name Paho.Client
|
||
|
|
*
|
||
|
|
* @constructor
|
||
|
|
*
|
||
|
|
* @param {string} host - the address of the messaging server, as a fully qualified WebSocket URI, as a DNS name or dotted decimal IP address.
|
||
|
|
* @param {number} port - the port number to connect to - only required if host is not a URI
|
||
|
|
* @param {string} path - the path on the host to connect to - only used if host is not a URI. Default: '/mqtt'.
|
||
|
|
* @param {string} clientId - the Messaging client identifier, between 1 and 23 characters in length.
|
||
|
|
*
|
||
|
|
* @property {string} host - <i>read only</i> the server's DNS hostname or dotted decimal IP address.
|
||
|
|
* @property {number} port - <i>read only</i> the server's port.
|
||
|
|
* @property {string} path - <i>read only</i> the server's path.
|
||
|
|
* @property {string} clientId - <i>read only</i> used when connecting to the server.
|
||
|
|
* @property {function} onConnectionLost - called when a connection has been lost.
|
||
|
|
* after a connect() method has succeeded.
|
||
|
|
* Establish the call back used when a connection has been lost. The connection may be
|
||
|
|
* lost because the client initiates a disconnect or because the server or network
|
||
|
|
* cause the client to be disconnected. The disconnect call back may be called without
|
||
|
|
* the connectionComplete call back being invoked if, for example the client fails to
|
||
|
|
* connect.
|
||
|
|
* A single response object parameter is passed to the onConnectionLost callback containing the following fields:
|
||
|
|
* <ol>
|
||
|
|
* <li>errorCode
|
||
|
|
* <li>errorMessage
|
||
|
|
* </ol>
|
||
|
|
* @property {function} onMessageDelivered - called when a message has been delivered.
|
||
|
|
* All processing that this Client will ever do has been completed. So, for example,
|
||
|
|
* in the case of a Qos=2 message sent by this client, the PubComp flow has been received from the server
|
||
|
|
* and the message has been removed from persistent storage before this callback is invoked.
|
||
|
|
* Parameters passed to the onMessageDelivered callback are:
|
||
|
|
* <ol>
|
||
|
|
* <li>{@link Paho.Message} that was delivered.
|
||
|
|
* </ol>
|
||
|
|
* @property {function} onMessageArrived - called when a message has arrived in this Paho.client.
|
||
|
|
* Parameters passed to the onMessageArrived callback are:
|
||
|
|
* <ol>
|
||
|
|
* <li>{@link Paho.Message} that has arrived.
|
||
|
|
* </ol>
|
||
|
|
* @property {function} onConnected - called when a connection is successfully made to the server.
|
||
|
|
* after a connect() method.
|
||
|
|
* Parameters passed to the onConnected callback are:
|
||
|
|
* <ol>
|
||
|
|
* <li>reconnect (boolean) - If true, the connection was the result of a reconnect.</li>
|
||
|
|
* <li>URI (string) - The URI used to connect to the server.</li>
|
||
|
|
* </ol>
|
||
|
|
* @property {boolean} disconnectedPublishing - if set, will enable disconnected publishing in
|
||
|
|
* in the event that the connection to the server is lost.
|
||
|
|
* @property {number} disconnectedBufferSize - Used to set the maximum number of messages that the disconnected
|
||
|
|
* buffer will hold before rejecting new messages. Default size: 5000 messages
|
||
|
|
* @property {function} trace - called whenever trace is called. TODO
|
||
|
|
*/
|
||
|
|
var Client = function (host, port, path, clientId) {
|
||
|
|
|
||
|
|
var uri;
|
||
|
|
|
||
|
|
if (typeof host !== "string")
|
||
|
|
throw new Error(format(ERROR.INVALID_TYPE, [typeof host, "host"]));
|
||
|
|
|
||
|
|
if (arguments.length == 2) {
|
||
|
|
// host: must be full ws:// uri
|
||
|
|
// port: clientId
|
||
|
|
clientId = port;
|
||
|
|
uri = host;
|
||
|
|
var match = uri.match(/^(wss?):\/\/((\[(.+)\])|([^\/]+?))(:(\d+))?(\/.*)$/);
|
||
|
|
if (match) {
|
||
|
|
host = match[4]||match[2];
|
||
|
|
port = parseInt(match[7]);
|
||
|
|
path = match[8];
|
||
|
|
} else {
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT,[host,"host"]));
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (arguments.length == 3) {
|
||
|
|
clientId = path;
|
||
|
|
path = "/mqtt";
|
||
|
|
}
|
||
|
|
if (typeof port !== "number" || port < 0)
|
||
|
|
throw new Error(format(ERROR.INVALID_TYPE, [typeof port, "port"]));
|
||
|
|
if (typeof path !== "string")
|
||
|
|
throw new Error(format(ERROR.INVALID_TYPE, [typeof path, "path"]));
|
||
|
|
|
||
|
|
var ipv6AddSBracket = (host.indexOf(":") !== -1 && host.slice(0,1) !== "[" && host.slice(-1) !== "]");
|
||
|
|
uri = "ws://"+(ipv6AddSBracket?"["+host+"]":host)+":"+port+path;
|
||
|
|
}
|
||
|
|
|
||
|
|
var clientIdLength = 0;
|
||
|
|
for (var i = 0; i<clientId.length; i++) {
|
||
|
|
var charCode = clientId.charCodeAt(i);
|
||
|
|
if (0xD800 <= charCode && charCode <= 0xDBFF) {
|
||
|
|
i++; // Surrogate pair.
|
||
|
|
}
|
||
|
|
clientIdLength++;
|
||
|
|
}
|
||
|
|
if (typeof clientId !== "string" || clientIdLength > 65535)
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT, [clientId, "clientId"]));
|
||
|
|
|
||
|
|
var client = new ClientImpl(uri, host, port, path, clientId);
|
||
|
|
|
||
|
|
//Public Properties
|
||
|
|
Object.defineProperties(this,{
|
||
|
|
"host":{
|
||
|
|
get: function() { return host; },
|
||
|
|
set: function() { throw new Error(format(ERROR.UNSUPPORTED_OPERATION)); }
|
||
|
|
},
|
||
|
|
"port":{
|
||
|
|
get: function() { return port; },
|
||
|
|
set: function() { throw new Error(format(ERROR.UNSUPPORTED_OPERATION)); }
|
||
|
|
},
|
||
|
|
"path":{
|
||
|
|
get: function() { return path; },
|
||
|
|
set: function() { throw new Error(format(ERROR.UNSUPPORTED_OPERATION)); }
|
||
|
|
},
|
||
|
|
"uri":{
|
||
|
|
get: function() { return uri; },
|
||
|
|
set: function() { throw new Error(format(ERROR.UNSUPPORTED_OPERATION)); }
|
||
|
|
},
|
||
|
|
"clientId":{
|
||
|
|
get: function() { return client.clientId; },
|
||
|
|
set: function() { throw new Error(format(ERROR.UNSUPPORTED_OPERATION)); }
|
||
|
|
},
|
||
|
|
"onConnected":{
|
||
|
|
get: function() { return client.onConnected; },
|
||
|
|
set: function(newOnConnected) {
|
||
|
|
if (typeof newOnConnected === "function")
|
||
|
|
client.onConnected = newOnConnected;
|
||
|
|
else
|
||
|
|
throw new Error(format(ERROR.INVALID_TYPE, [typeof newOnConnected, "onConnected"]));
|
||
|
|
}
|
||
|
|
},
|
||
|
|
"disconnectedPublishing":{
|
||
|
|
get: function() { return client.disconnectedPublishing; },
|
||
|
|
set: function(newDisconnectedPublishing) {
|
||
|
|
client.disconnectedPublishing = newDisconnectedPublishing;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
"disconnectedBufferSize":{
|
||
|
|
get: function() { return client.disconnectedBufferSize; },
|
||
|
|
set: function(newDisconnectedBufferSize) {
|
||
|
|
client.disconnectedBufferSize = newDisconnectedBufferSize;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
"onConnectionLost":{
|
||
|
|
get: function() { return client.onConnectionLost; },
|
||
|
|
set: function(newOnConnectionLost) {
|
||
|
|
if (typeof newOnConnectionLost === "function")
|
||
|
|
client.onConnectionLost = newOnConnectionLost;
|
||
|
|
else
|
||
|
|
throw new Error(format(ERROR.INVALID_TYPE, [typeof newOnConnectionLost, "onConnectionLost"]));
|
||
|
|
}
|
||
|
|
},
|
||
|
|
"onMessageDelivered":{
|
||
|
|
get: function() { return client.onMessageDelivered; },
|
||
|
|
set: function(newOnMessageDelivered) {
|
||
|
|
if (typeof newOnMessageDelivered === "function")
|
||
|
|
client.onMessageDelivered = newOnMessageDelivered;
|
||
|
|
else
|
||
|
|
throw new Error(format(ERROR.INVALID_TYPE, [typeof newOnMessageDelivered, "onMessageDelivered"]));
|
||
|
|
}
|
||
|
|
},
|
||
|
|
"onMessageArrived":{
|
||
|
|
get: function() { return client.onMessageArrived; },
|
||
|
|
set: function(newOnMessageArrived) {
|
||
|
|
if (typeof newOnMessageArrived === "function")
|
||
|
|
client.onMessageArrived = newOnMessageArrived;
|
||
|
|
else
|
||
|
|
throw new Error(format(ERROR.INVALID_TYPE, [typeof newOnMessageArrived, "onMessageArrived"]));
|
||
|
|
}
|
||
|
|
},
|
||
|
|
"trace":{
|
||
|
|
get: function() { return client.traceFunction; },
|
||
|
|
set: function(trace) {
|
||
|
|
if(typeof trace === "function"){
|
||
|
|
client.traceFunction = trace;
|
||
|
|
}else{
|
||
|
|
throw new Error(format(ERROR.INVALID_TYPE, [typeof trace, "onTrace"]));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
});
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Connect this Messaging client to its server.
|
||
|
|
*
|
||
|
|
* @name Paho.Client#connect
|
||
|
|
* @function
|
||
|
|
* @param {object} connectOptions - Attributes used with the connection.
|
||
|
|
* @param {number} connectOptions.timeout - If the connect has not succeeded within this
|
||
|
|
* number of seconds, it is deemed to have failed.
|
||
|
|
* The default is 30 seconds.
|
||
|
|
* @param {string} connectOptions.userName - Authentication username for this connection.
|
||
|
|
* @param {string} connectOptions.password - Authentication password for this connection.
|
||
|
|
* @param {Paho.Message} connectOptions.willMessage - sent by the server when the client
|
||
|
|
* disconnects abnormally.
|
||
|
|
* @param {number} connectOptions.keepAliveInterval - the server disconnects this client if
|
||
|
|
* there is no activity for this number of seconds.
|
||
|
|
* The default value of 60 seconds is assumed if not set.
|
||
|
|
* @param {boolean} connectOptions.cleanSession - if true(default) the client and server
|
||
|
|
* persistent state is deleted on successful connect.
|
||
|
|
* @param {boolean} connectOptions.useSSL - if present and true, use an SSL Websocket connection.
|
||
|
|
* @param {object} connectOptions.invocationContext - passed to the onSuccess callback or onFailure callback.
|
||
|
|
* @param {function} connectOptions.onSuccess - called when the connect acknowledgement
|
||
|
|
* has been received from the server.
|
||
|
|
* A single response object parameter is passed to the onSuccess callback containing the following fields:
|
||
|
|
* <ol>
|
||
|
|
* <li>invocationContext as passed in to the onSuccess method in the connectOptions.
|
||
|
|
* </ol>
|
||
|
|
* @param {function} connectOptions.onFailure - called when the connect request has failed or timed out.
|
||
|
|
* A single response object parameter is passed to the onFailure callback containing the following fields:
|
||
|
|
* <ol>
|
||
|
|
* <li>invocationContext as passed in to the onFailure method in the connectOptions.
|
||
|
|
* <li>errorCode a number indicating the nature of the error.
|
||
|
|
* <li>errorMessage text describing the error.
|
||
|
|
* </ol>
|
||
|
|
* @param {array} connectOptions.hosts - If present this contains either a set of hostnames or fully qualified
|
||
|
|
* WebSocket URIs (ws://iot.eclipse.org:80/ws), that are tried in order in place
|
||
|
|
* of the host and port paramater on the construtor. The hosts are tried one at at time in order until
|
||
|
|
* one of then succeeds.
|
||
|
|
* @param {array} connectOptions.ports - If present the set of ports matching the hosts. If hosts contains URIs, this property
|
||
|
|
* is not used.
|
||
|
|
* @param {boolean} connectOptions.reconnect - Sets whether the client will automatically attempt to reconnect
|
||
|
|
* to the server if the connection is lost.
|
||
|
|
*<ul>
|
||
|
|
*<li>If set to false, the client will not attempt to automatically reconnect to the server in the event that the
|
||
|
|
* connection is lost.</li>
|
||
|
|
*<li>If set to true, in the event that the connection is lost, the client will attempt to reconnect to the server.
|
||
|
|
* It will initially wait 1 second before it attempts to reconnect, for every failed reconnect attempt, the delay
|
||
|
|
* will double until it is at 2 minutes at which point the delay will stay at 2 minutes.</li>
|
||
|
|
*</ul>
|
||
|
|
* @param {number} connectOptions.mqttVersion - The version of MQTT to use to connect to the MQTT Broker.
|
||
|
|
*<ul>
|
||
|
|
*<li>3 - MQTT V3.1</li>
|
||
|
|
*<li>4 - MQTT V3.1.1</li>
|
||
|
|
*</ul>
|
||
|
|
* @param {boolean} connectOptions.mqttVersionExplicit - If set to true, will force the connection to use the
|
||
|
|
* selected MQTT Version or will fail to connect.
|
||
|
|
* @param {array} connectOptions.uris - If present, should contain a list of fully qualified WebSocket uris
|
||
|
|
* (e.g. ws://iot.eclipse.org:80/ws), that are tried in order in place of the host and port parameter of the construtor.
|
||
|
|
* The uris are tried one at a time in order until one of them succeeds. Do not use this in conjunction with hosts as
|
||
|
|
* the hosts array will be converted to uris and will overwrite this property.
|
||
|
|
* @throws {InvalidState} If the client is not in disconnected state. The client must have received connectionLost
|
||
|
|
* or disconnected before calling connect for a second or subsequent time.
|
||
|
|
*/
|
||
|
|
this.connect = function (connectOptions) {
|
||
|
|
connectOptions = connectOptions || {} ;
|
||
|
|
validate(connectOptions, {timeout:"number",
|
||
|
|
userName:"string",
|
||
|
|
password:"string",
|
||
|
|
willMessage:"object",
|
||
|
|
keepAliveInterval:"number",
|
||
|
|
cleanSession:"boolean",
|
||
|
|
useSSL:"boolean",
|
||
|
|
invocationContext:"object",
|
||
|
|
onSuccess:"function",
|
||
|
|
onFailure:"function",
|
||
|
|
hosts:"object",
|
||
|
|
ports:"object",
|
||
|
|
reconnect:"boolean",
|
||
|
|
mqttVersion:"number",
|
||
|
|
mqttVersionExplicit:"boolean",
|
||
|
|
uris: "object"});
|
||
|
|
|
||
|
|
// If no keep alive interval is set, assume 60 seconds.
|
||
|
|
if (connectOptions.keepAliveInterval === undefined)
|
||
|
|
connectOptions.keepAliveInterval = 60;
|
||
|
|
|
||
|
|
if (connectOptions.mqttVersion > 4 || connectOptions.mqttVersion < 3) {
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT, [connectOptions.mqttVersion, "connectOptions.mqttVersion"]));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (connectOptions.mqttVersion === undefined) {
|
||
|
|
connectOptions.mqttVersionExplicit = false;
|
||
|
|
connectOptions.mqttVersion = 4;
|
||
|
|
} else {
|
||
|
|
connectOptions.mqttVersionExplicit = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
//Check that if password is set, so is username
|
||
|
|
if (connectOptions.password !== undefined && connectOptions.userName === undefined)
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT, [connectOptions.password, "connectOptions.password"]));
|
||
|
|
|
||
|
|
if (connectOptions.willMessage) {
|
||
|
|
if (!(connectOptions.willMessage instanceof Message))
|
||
|
|
throw new Error(format(ERROR.INVALID_TYPE, [connectOptions.willMessage, "connectOptions.willMessage"]));
|
||
|
|
// The will message must have a payload that can be represented as a string.
|
||
|
|
// Cause the willMessage to throw an exception if this is not the case.
|
||
|
|
connectOptions.willMessage.stringPayload = null;
|
||
|
|
|
||
|
|
if (typeof connectOptions.willMessage.destinationName === "undefined")
|
||
|
|
throw new Error(format(ERROR.INVALID_TYPE, [typeof connectOptions.willMessage.destinationName, "connectOptions.willMessage.destinationName"]));
|
||
|
|
}
|
||
|
|
if (typeof connectOptions.cleanSession === "undefined")
|
||
|
|
connectOptions.cleanSession = true;
|
||
|
|
if (connectOptions.hosts) {
|
||
|
|
|
||
|
|
if (!(connectOptions.hosts instanceof Array) )
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT, [connectOptions.hosts, "connectOptions.hosts"]));
|
||
|
|
if (connectOptions.hosts.length <1 )
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT, [connectOptions.hosts, "connectOptions.hosts"]));
|
||
|
|
|
||
|
|
var usingURIs = false;
|
||
|
|
for (var i = 0; i<connectOptions.hosts.length; i++) {
|
||
|
|
if (typeof connectOptions.hosts[i] !== "string")
|
||
|
|
throw new Error(format(ERROR.INVALID_TYPE, [typeof connectOptions.hosts[i], "connectOptions.hosts["+i+"]"]));
|
||
|
|
if (/^(wss?):\/\/((\[(.+)\])|([^\/]+?))(:(\d+))?(\/.*)$/.test(connectOptions.hosts[i])) {
|
||
|
|
if (i === 0) {
|
||
|
|
usingURIs = true;
|
||
|
|
} else if (!usingURIs) {
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT, [connectOptions.hosts[i], "connectOptions.hosts["+i+"]"]));
|
||
|
|
}
|
||
|
|
} else if (usingURIs) {
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT, [connectOptions.hosts[i], "connectOptions.hosts["+i+"]"]));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!usingURIs) {
|
||
|
|
if (!connectOptions.ports)
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT, [connectOptions.ports, "connectOptions.ports"]));
|
||
|
|
if (!(connectOptions.ports instanceof Array) )
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT, [connectOptions.ports, "connectOptions.ports"]));
|
||
|
|
if (connectOptions.hosts.length !== connectOptions.ports.length)
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT, [connectOptions.ports, "connectOptions.ports"]));
|
||
|
|
|
||
|
|
connectOptions.uris = [];
|
||
|
|
|
||
|
|
for (var i = 0; i<connectOptions.hosts.length; i++) {
|
||
|
|
if (typeof connectOptions.ports[i] !== "number" || connectOptions.ports[i] < 0)
|
||
|
|
throw new Error(format(ERROR.INVALID_TYPE, [typeof connectOptions.ports[i], "connectOptions.ports["+i+"]"]));
|
||
|
|
var host = connectOptions.hosts[i];
|
||
|
|
var port = connectOptions.ports[i];
|
||
|
|
|
||
|
|
var ipv6 = (host.indexOf(":") !== -1);
|
||
|
|
uri = "ws://"+(ipv6?"["+host+"]":host)+":"+port+path;
|
||
|
|
connectOptions.uris.push(uri);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
connectOptions.uris = connectOptions.hosts;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
client.connect(connectOptions);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Subscribe for messages, request receipt of a copy of messages sent to the destinations described by the filter.
|
||
|
|
*
|
||
|
|
* @name Paho.Client#subscribe
|
||
|
|
* @function
|
||
|
|
* @param {string} filter describing the destinations to receive messages from.
|
||
|
|
* <br>
|
||
|
|
* @param {object} subscribeOptions - used to control the subscription
|
||
|
|
*
|
||
|
|
* @param {number} subscribeOptions.qos - the maximum qos of any publications sent
|
||
|
|
* as a result of making this subscription.
|
||
|
|
* @param {object} subscribeOptions.invocationContext - passed to the onSuccess callback
|
||
|
|
* or onFailure callback.
|
||
|
|
* @param {function} subscribeOptions.onSuccess - called when the subscribe acknowledgement
|
||
|
|
* has been received from the server.
|
||
|
|
* A single response object parameter is passed to the onSuccess callback containing the following fields:
|
||
|
|
* <ol>
|
||
|
|
* <li>invocationContext if set in the subscribeOptions.
|
||
|
|
* </ol>
|
||
|
|
* @param {function} subscribeOptions.onFailure - called when the subscribe request has failed or timed out.
|
||
|
|
* A single response object parameter is passed to the onFailure callback containing the following fields:
|
||
|
|
* <ol>
|
||
|
|
* <li>invocationContext - if set in the subscribeOptions.
|
||
|
|
* <li>errorCode - a number indicating the nature of the error.
|
||
|
|
* <li>errorMessage - text describing the error.
|
||
|
|
* </ol>
|
||
|
|
* @param {number} subscribeOptions.timeout - which, if present, determines the number of
|
||
|
|
* seconds after which the onFailure calback is called.
|
||
|
|
* The presence of a timeout does not prevent the onSuccess
|
||
|
|
* callback from being called when the subscribe completes.
|
||
|
|
* @throws {InvalidState} if the client is not in connected state.
|
||
|
|
*/
|
||
|
|
this.subscribe = function (filter, subscribeOptions) {
|
||
|
|
if (typeof filter !== "string" && filter.constructor !== Array)
|
||
|
|
throw new Error("Invalid argument:"+filter);
|
||
|
|
subscribeOptions = subscribeOptions || {} ;
|
||
|
|
validate(subscribeOptions, {qos:"number",
|
||
|
|
invocationContext:"object",
|
||
|
|
onSuccess:"function",
|
||
|
|
onFailure:"function",
|
||
|
|
timeout:"number"
|
||
|
|
});
|
||
|
|
if (subscribeOptions.timeout && !subscribeOptions.onFailure)
|
||
|
|
throw new Error("subscribeOptions.timeout specified with no onFailure callback.");
|
||
|
|
if (typeof subscribeOptions.qos !== "undefined" && !(subscribeOptions.qos === 0 || subscribeOptions.qos === 1 || subscribeOptions.qos === 2 ))
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT, [subscribeOptions.qos, "subscribeOptions.qos"]));
|
||
|
|
client.subscribe(filter, subscribeOptions);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Unsubscribe for messages, stop receiving messages sent to destinations described by the filter.
|
||
|
|
*
|
||
|
|
* @name Paho.Client#unsubscribe
|
||
|
|
* @function
|
||
|
|
* @param {string} filter - describing the destinations to receive messages from.
|
||
|
|
* @param {object} unsubscribeOptions - used to control the subscription
|
||
|
|
* @param {object} unsubscribeOptions.invocationContext - passed to the onSuccess callback
|
||
|
|
or onFailure callback.
|
||
|
|
* @param {function} unsubscribeOptions.onSuccess - called when the unsubscribe acknowledgement has been received from the server.
|
||
|
|
* A single response object parameter is passed to the
|
||
|
|
* onSuccess callback containing the following fields:
|
||
|
|
* <ol>
|
||
|
|
* <li>invocationContext - if set in the unsubscribeOptions.
|
||
|
|
* </ol>
|
||
|
|
* @param {function} unsubscribeOptions.onFailure called when the unsubscribe request has failed or timed out.
|
||
|
|
* A single response object parameter is passed to the onFailure callback containing the following fields:
|
||
|
|
* <ol>
|
||
|
|
* <li>invocationContext - if set in the unsubscribeOptions.
|
||
|
|
* <li>errorCode - a number indicating the nature of the error.
|
||
|
|
* <li>errorMessage - text describing the error.
|
||
|
|
* </ol>
|
||
|
|
* @param {number} unsubscribeOptions.timeout - which, if present, determines the number of seconds
|
||
|
|
* after which the onFailure callback is called. The presence of
|
||
|
|
* a timeout does not prevent the onSuccess callback from being
|
||
|
|
* called when the unsubscribe completes
|
||
|
|
* @throws {InvalidState} if the client is not in connected state.
|
||
|
|
*/
|
||
|
|
this.unsubscribe = function (filter, unsubscribeOptions) {
|
||
|
|
if (typeof filter !== "string" && filter.constructor !== Array)
|
||
|
|
throw new Error("Invalid argument:"+filter);
|
||
|
|
unsubscribeOptions = unsubscribeOptions || {} ;
|
||
|
|
validate(unsubscribeOptions, {invocationContext:"object",
|
||
|
|
onSuccess:"function",
|
||
|
|
onFailure:"function",
|
||
|
|
timeout:"number"
|
||
|
|
});
|
||
|
|
if (unsubscribeOptions.timeout && !unsubscribeOptions.onFailure)
|
||
|
|
throw new Error("unsubscribeOptions.timeout specified with no onFailure callback.");
|
||
|
|
client.unsubscribe(filter, unsubscribeOptions);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Send a message to the consumers of the destination in the Message.
|
||
|
|
*
|
||
|
|
* @name Paho.Client#send
|
||
|
|
* @function
|
||
|
|
* @param {string|Paho.Message} topic - <b>mandatory</b> The name of the destination to which the message is to be sent.
|
||
|
|
* - If it is the only parameter, used as Paho.Message object.
|
||
|
|
* @param {String|ArrayBuffer} payload - The message data to be sent.
|
||
|
|
* @param {number} qos The Quality of Service used to deliver the message.
|
||
|
|
* <dl>
|
||
|
|
* <dt>0 Best effort (default).
|
||
|
|
* <dt>1 At least once.
|
||
|
|
* <dt>2 Exactly once.
|
||
|
|
* </dl>
|
||
|
|
* @param {Boolean} retained If true, the message is to be retained by the server and delivered
|
||
|
|
* to both current and future subscriptions.
|
||
|
|
* If false the server only delivers the message to current subscribers, this is the default for new Messages.
|
||
|
|
* A received message has the retained boolean set to true if the message was published
|
||
|
|
* with the retained boolean set to true
|
||
|
|
* and the subscrption was made after the message has been published.
|
||
|
|
* @throws {InvalidState} if the client is not connected.
|
||
|
|
*/
|
||
|
|
this.send = function (topic,payload,qos,retained) {
|
||
|
|
var message ;
|
||
|
|
|
||
|
|
if(arguments.length === 0){
|
||
|
|
throw new Error("Invalid argument."+"length");
|
||
|
|
|
||
|
|
}else if(arguments.length == 1) {
|
||
|
|
|
||
|
|
if (!(topic instanceof Message) && (typeof topic !== "string"))
|
||
|
|
throw new Error("Invalid argument:"+ typeof topic);
|
||
|
|
|
||
|
|
message = topic;
|
||
|
|
if (typeof message.destinationName === "undefined")
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT,[message.destinationName,"Message.destinationName"]));
|
||
|
|
client.send(message);
|
||
|
|
|
||
|
|
}else {
|
||
|
|
//parameter checking in Message object
|
||
|
|
message = new Message(payload);
|
||
|
|
message.destinationName = topic;
|
||
|
|
if(arguments.length >= 3)
|
||
|
|
message.qos = qos;
|
||
|
|
if(arguments.length >= 4)
|
||
|
|
message.retained = retained;
|
||
|
|
client.send(message);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Publish a message to the consumers of the destination in the Message.
|
||
|
|
* Synonym for Paho.Mqtt.Client#send
|
||
|
|
*
|
||
|
|
* @name Paho.Client#publish
|
||
|
|
* @function
|
||
|
|
* @param {string|Paho.Message} topic - <b>mandatory</b> The name of the topic to which the message is to be published.
|
||
|
|
* - If it is the only parameter, used as Paho.Message object.
|
||
|
|
* @param {String|ArrayBuffer} payload - The message data to be published.
|
||
|
|
* @param {number} qos The Quality of Service used to deliver the message.
|
||
|
|
* <dl>
|
||
|
|
* <dt>0 Best effort (default).
|
||
|
|
* <dt>1 At least once.
|
||
|
|
* <dt>2 Exactly once.
|
||
|
|
* </dl>
|
||
|
|
* @param {Boolean} retained If true, the message is to be retained by the server and delivered
|
||
|
|
* to both current and future subscriptions.
|
||
|
|
* If false the server only delivers the message to current subscribers, this is the default for new Messages.
|
||
|
|
* A received message has the retained boolean set to true if the message was published
|
||
|
|
* with the retained boolean set to true
|
||
|
|
* and the subscrption was made after the message has been published.
|
||
|
|
* @throws {InvalidState} if the client is not connected.
|
||
|
|
*/
|
||
|
|
this.publish = function(topic,payload,qos,retained) {
|
||
|
|
var message ;
|
||
|
|
|
||
|
|
if(arguments.length === 0){
|
||
|
|
throw new Error("Invalid argument."+"length");
|
||
|
|
|
||
|
|
}else if(arguments.length == 1) {
|
||
|
|
|
||
|
|
if (!(topic instanceof Message) && (typeof topic !== "string"))
|
||
|
|
throw new Error("Invalid argument:"+ typeof topic);
|
||
|
|
|
||
|
|
message = topic;
|
||
|
|
if (typeof message.destinationName === "undefined")
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT,[message.destinationName,"Message.destinationName"]));
|
||
|
|
client.send(message);
|
||
|
|
|
||
|
|
}else {
|
||
|
|
//parameter checking in Message object
|
||
|
|
message = new Message(payload);
|
||
|
|
message.destinationName = topic;
|
||
|
|
if(arguments.length >= 3)
|
||
|
|
message.qos = qos;
|
||
|
|
if(arguments.length >= 4)
|
||
|
|
message.retained = retained;
|
||
|
|
client.send(message);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Normal disconnect of this Messaging client from its server.
|
||
|
|
*
|
||
|
|
* @name Paho.Client#disconnect
|
||
|
|
* @function
|
||
|
|
* @throws {InvalidState} if the client is already disconnected.
|
||
|
|
*/
|
||
|
|
this.disconnect = function () {
|
||
|
|
client.disconnect();
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the contents of the trace log.
|
||
|
|
*
|
||
|
|
* @name Paho.Client#getTraceLog
|
||
|
|
* @function
|
||
|
|
* @return {Object[]} tracebuffer containing the time ordered trace records.
|
||
|
|
*/
|
||
|
|
this.getTraceLog = function () {
|
||
|
|
return client.getTraceLog();
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Start tracing.
|
||
|
|
*
|
||
|
|
* @name Paho.Client#startTrace
|
||
|
|
* @function
|
||
|
|
*/
|
||
|
|
this.startTrace = function () {
|
||
|
|
client.startTrace();
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Stop tracing.
|
||
|
|
*
|
||
|
|
* @name Paho.Client#stopTrace
|
||
|
|
* @function
|
||
|
|
*/
|
||
|
|
this.stopTrace = function () {
|
||
|
|
client.stopTrace();
|
||
|
|
};
|
||
|
|
|
||
|
|
this.isConnected = function() {
|
||
|
|
return client.connected;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* An application message, sent or received.
|
||
|
|
* <p>
|
||
|
|
* All attributes may be null, which implies the default values.
|
||
|
|
*
|
||
|
|
* @name Paho.Message
|
||
|
|
* @constructor
|
||
|
|
* @param {String|ArrayBuffer} payload The message data to be sent.
|
||
|
|
* <p>
|
||
|
|
* @property {string} payloadString <i>read only</i> The payload as a string if the payload consists of valid UTF-8 characters.
|
||
|
|
* @property {ArrayBuffer} payloadBytes <i>read only</i> The payload as an ArrayBuffer.
|
||
|
|
* <p>
|
||
|
|
* @property {string} destinationName <b>mandatory</b> The name of the destination to which the message is to be sent
|
||
|
|
* (for messages about to be sent) or the name of the destination from which the message has been received.
|
||
|
|
* (for messages received by the onMessage function).
|
||
|
|
* <p>
|
||
|
|
* @property {number} qos The Quality of Service used to deliver the message.
|
||
|
|
* <dl>
|
||
|
|
* <dt>0 Best effort (default).
|
||
|
|
* <dt>1 At least once.
|
||
|
|
* <dt>2 Exactly once.
|
||
|
|
* </dl>
|
||
|
|
* <p>
|
||
|
|
* @property {Boolean} retained If true, the message is to be retained by the server and delivered
|
||
|
|
* to both current and future subscriptions.
|
||
|
|
* If false the server only delivers the message to current subscribers, this is the default for new Messages.
|
||
|
|
* A received message has the retained boolean set to true if the message was published
|
||
|
|
* with the retained boolean set to true
|
||
|
|
* and the subscrption was made after the message has been published.
|
||
|
|
* <p>
|
||
|
|
* @property {Boolean} duplicate <i>read only</i> If true, this message might be a duplicate of one which has already been received.
|
||
|
|
* This is only set on messages received from the server.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
var Message = function (newPayload) {
|
||
|
|
var payload;
|
||
|
|
if ( typeof newPayload === "string" ||
|
||
|
|
newPayload instanceof ArrayBuffer ||
|
||
|
|
(ArrayBuffer.isView(newPayload) && !(newPayload instanceof DataView))
|
||
|
|
) {
|
||
|
|
payload = newPayload;
|
||
|
|
} else {
|
||
|
|
throw (format(ERROR.INVALID_ARGUMENT, [newPayload, "newPayload"]));
|
||
|
|
}
|
||
|
|
|
||
|
|
var destinationName;
|
||
|
|
var qos = 0;
|
||
|
|
var retained = false;
|
||
|
|
var duplicate = false;
|
||
|
|
|
||
|
|
Object.defineProperties(this,{
|
||
|
|
"payloadString":{
|
||
|
|
enumerable : true,
|
||
|
|
get : function () {
|
||
|
|
if (typeof payload === "string")
|
||
|
|
return payload;
|
||
|
|
else
|
||
|
|
return parseUTF8(payload, 0, payload.length);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
"payloadBytes":{
|
||
|
|
enumerable: true,
|
||
|
|
get: function() {
|
||
|
|
if (typeof payload === "string") {
|
||
|
|
var buffer = new ArrayBuffer(UTF8Length(payload));
|
||
|
|
var byteStream = new Uint8Array(buffer);
|
||
|
|
stringToUTF8(payload, byteStream, 0);
|
||
|
|
|
||
|
|
return byteStream;
|
||
|
|
} else {
|
||
|
|
return payload;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
"destinationName":{
|
||
|
|
enumerable: true,
|
||
|
|
get: function() { return destinationName; },
|
||
|
|
set: function(newDestinationName) {
|
||
|
|
if (typeof newDestinationName === "string")
|
||
|
|
destinationName = newDestinationName;
|
||
|
|
else
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT, [newDestinationName, "newDestinationName"]));
|
||
|
|
}
|
||
|
|
},
|
||
|
|
"qos":{
|
||
|
|
enumerable: true,
|
||
|
|
get: function() { return qos; },
|
||
|
|
set: function(newQos) {
|
||
|
|
if (newQos === 0 || newQos === 1 || newQos === 2 )
|
||
|
|
qos = newQos;
|
||
|
|
else
|
||
|
|
throw new Error("Invalid argument:"+newQos);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
"retained":{
|
||
|
|
enumerable: true,
|
||
|
|
get: function() { return retained; },
|
||
|
|
set: function(newRetained) {
|
||
|
|
if (typeof newRetained === "boolean")
|
||
|
|
retained = newRetained;
|
||
|
|
else
|
||
|
|
throw new Error(format(ERROR.INVALID_ARGUMENT, [newRetained, "newRetained"]));
|
||
|
|
}
|
||
|
|
},
|
||
|
|
"topic":{
|
||
|
|
enumerable: true,
|
||
|
|
get: function() { return destinationName; },
|
||
|
|
set: function(newTopic) {destinationName=newTopic;}
|
||
|
|
},
|
||
|
|
"duplicate":{
|
||
|
|
enumerable: true,
|
||
|
|
get: function() { return duplicate; },
|
||
|
|
set: function(newDuplicate) {duplicate=newDuplicate;}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
// Module contents.
|
||
|
|
return {
|
||
|
|
Client: Client,
|
||
|
|
Message: Message
|
||
|
|
};
|
||
|
|
// eslint-disable-next-line no-nested-ternary
|
||
|
|
})(typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {});
|
||
|
|
return PahoMQTT;
|
||
|
|
});
|