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/*! Copyright (c) 2021 Siemens AG. Licensed under the MIT License. */
Object.defineProperty(exports, "__esModule", { value: true });
exports.Client = exports.createUuid = void 0;
const debug_1 = require("debug");
const mqtt_1 = require("mqtt");
const uuid_1 = require("uuid");
const __1 = require("..");
const mqtt_utils_1 = require("./mqtt-utils");
const subscription_manager_1 = require("./subscription-manager");
const vda_5050_validators_1_1_1 = require("./vda-5050-validators-1.1");
const vda_5050_validators_2_0_1 = require("./vda-5050-validators-2.0");
const vda_5050_validators_2_1_1 = require("./vda-5050-validators-2.1");
function createUuid() {
return (0, uuid_1.v4)();
}
exports.createUuid = createUuid;
class Client {
constructor(options) {
this._isStarted = false;
this._isStopping = false;
this._clientOptions = options;
this.clientId = `${(0, uuid_1.v4)().replace(/-/g, "").substr(0, 23)}`;
this.debug = (0, debug_1.default)(`vda-5050:${this.clientId.substr(0, 10)}`).extend(this.constructor.name);
this._validateOptions(options);
this._headerIds = new Map();
this._subscriptionManager = new subscription_manager_1.SubscriptionManager(options.transport.topicFormat || Client.DEFAULT_MQTT_TOPIC_FORMAT, this.clientOptions.interfaceName, this.getProtocolVersion());
this._isWebPlatform = new Function("try {return this===window;}catch(e){return false;}")();
this._extensionTopics = new Map();
this._emitConnectionStateChange("offline");
this.debug("Create instance with clientOptions %o", options);
}
get clientOptions() {
return this._clientOptions;
}
get protocolVersion() {
return this.getProtocolVersion();
}
createUuid() {
return createUuid();
}
async start() {
if (this._isStarted) {
return;
}
this.debug("Starting client");
await this._connect();
this._isStarted = true;
await this.onStarted();
}
async stop() {
if (!this._isStarted || this._isStopping) {
return;
}
this.debug("Stopping client");
this._isStopping = true;
await this.onStopping();
this._isStarted = false;
this._isStopping = false;
await this._disconnect();
}
unsubscribe(subscriptionId) {
this.debug("Unsubscribing subscription ID %s", subscriptionId);
if (!this._isStarted) {
throw new Error("Client is not started");
}
return new Promise((resolve, reject) => {
const { mqttTopic, requiresUnsubscribe } = this._subscriptionManager.remove(subscriptionId);
if (!requiresUnsubscribe) {
this.debug("Unsubscribed id %s, more subscriptions on MQTT topic %s", subscriptionId, mqttTopic);
resolve();
return;
}
if (!this._mqtt.connected) {
this.debug("Unsubscribe on MQTT topic %s for id %s while offline", mqttTopic, subscriptionId);
resolve();
return;
}
this._mqtt.unsubscribe(mqttTopic, err => {
if (err) {
this.debug("Unsubscribe on MQTT topic %s for id %s failed: %s", mqttTopic, subscriptionId, err);
reject(err);
}
else {
this.debug("Unsubscribed on MQTT topic %s for id %s", mqttTopic, subscriptionId);
resolve();
}
});
});
}
registerConnectionStateChange(callback) {
this._connectionStateChangeCallback = callback;
this._emitConnectionStateChange(this._connectionState);
}
registerExtensionTopic(extensionTopic, asInbound, asOutbound, validator) {
this._extensionTopics.set(extensionTopic, [asInbound, asOutbound, validator]);
}
getProtocolVersion() {
return this._clientOptions.vdaVersion;
}
get isStarted() {
return this._isStarted;
}
onStarted() {
}
onStopping() {
}
getLastWillTopic() {
return undefined;
}
publishTopic(topic, subject, object, options) {
var _a;
this.debug("Publishing on topic %s for subject %o with object %j", topic, subject, object);
if (!this._isStarted) {
throw new Error("Client is not started");
}
this._validateTopic(topic, false);
this.validateAgvId(subject, false);
const headerfullObject = this._withObjectHeader(topic, subject, object);
if (((_a = this.clientOptions.topicObjectValidation) === null || _a === void 0 ? void 0 : _a.outbound) !== false) {
this.validateTopicObject(topic, headerfullObject, this.clientOptions.vdaVersion);
}
const mqttTopic = this._subscriptionManager.getMqttTopic(topic, subject);
(0, mqtt_utils_1.assertMqttTopicLength)(mqttTopic);
const mqttPayload = JSON.stringify(headerfullObject);
return new Promise((resolve, reject) => {
var _a;
const mqttOptions = this._withMqttProperties({ retain: (_a = options === null || options === void 0 ? void 0 : options.retainMessage) !== null && _a !== void 0 ? _a : false });
if (!this._mqtt.connected) {
if (options === null || options === void 0 ? void 0 : options.dropIfOffline) {
this.debug("Drop offline publish on topic %s", mqttTopic);
resolve(undefined);
return;
}
else {
this.debug("Publish on MQTT topic %s while offline with retain %s with object %j", mqttTopic, mqttOptions.retain, headerfullObject);
this._mqtt.publish(mqttTopic, mqttPayload, mqttOptions);
resolve(headerfullObject);
return;
}
}
this._mqtt.publish(mqttTopic, mqttPayload, mqttOptions, err => {
if (err) {
this.debug("Publish on MQTT topic %s failed: %s", mqttTopic, err);
reject(err);
}
else {
this.debug("Published on MQTT topic %s with retain %s with object %j", mqttTopic, mqttOptions.retain, headerfullObject);
resolve(headerfullObject);
}
});
});
}
subscribeTopic(topic, subject, handler) {
this.debug("Subscribing on topic %s for subject %o", topic, subject);
if (!this._isStarted) {
throw new Error("Client is not started");
}
this._validateTopic(topic, true);
this.validateAgvId(subject, true);
const { id, mqttTopic, requiresSubscribe } = this._subscriptionManager.add(topic, subject, handler);
return new Promise((resolve, reject) => {
if (!requiresSubscribe) {
this.debug("Already subscribed on MQTT topic %s with id %s", mqttTopic, id);
resolve(id);
return;
}
const mqttOptions = { qos: 0, rap: true, rh: 0 };
if (!this._mqtt.connected) {
this.debug("Subscribe on MQTT topic %s with id %s while offline", mqttTopic, id);
resolve(id);
return;
}
this._mqtt.subscribe(mqttTopic, mqttOptions, err => {
if (err) {
this.debug("Subscribe on MQTT topic %s with id %s failed: %s", mqttTopic, id, err);
reject(err);
}
else {
this.debug("Subscribed on MQTT topic %s with id %s", mqttTopic, id);
resolve(id);
}
});
});
}
validateTopicDirection(topic, forSubscription) {
}
validateAgvId(agvId, forSubscription) {
if (agvId.manufacturer === "") {
throw new TypeError("Empty string passed in AgvId.manufacturer.");
}
if (!forSubscription && !agvId.manufacturer) {
throw new TypeError("AgvId.manufacturer not specified for publication");
}
if (agvId.manufacturer && !this._isValidTopicLevel(agvId.manufacturer)) {
throw new TypeError("AgvId.manufacturer is not a valid MQTT topic level");
}
if (agvId.serialNumber === "") {
throw new TypeError("Empty string passed in AgvId.serialNumber.");
}
if (!forSubscription && !agvId.serialNumber) {
throw new TypeError("AgvId.serialNumber not specified for publication");
}
if (agvId.serialNumber &&
(!this._isValidTopicLevel(agvId.serialNumber) || /[^A-Za-z0-9_.:-]/.test(agvId.serialNumber))) {
throw new TypeError("AgvId.serialNumber is not a valid MQTT topic level or not restricted to A-Z a-z 0-9 _ . : -");
}
}
validateTopicObject(topic, object, vdaVersion) {
if (!object || typeof object !== "object") {
throw new TypeError(`Invalid VDA 5050 object ${object}`);
}
if (object.version !== vdaVersion) {
throw new TypeError(`Invalid VDA 5050 Version. ${topic} version: ${object.version} is not compatible with client verion: ${vdaVersion}`);
}
switch (topic) {
case __1.Topic.Connection:
switch (vdaVersion) {
case "1.1.0":
if (!(0, vda_5050_validators_1_1_1.validateConnection)(object)) {
throw new TypeError(`Invalid VDA 5050 Connection at ${vda_5050_validators_1_1_1.validateConnection.errors[0].keywordLocation}, ${vda_5050_validators_1_1_1.validateConnection.errors[0].instanceLocation}`);
}
break;
case "2.0.0":
Iif (!(0, vda_5050_validators_2_0_1.validateConnection)(object)) {
throw new TypeError(`Invalid VDA 5050 Connection at ${vda_5050_validators_2_0_1.validateConnection.errors[0].keywordLocation}, ${vda_5050_validators_2_0_1.validateConnection.errors[0].instanceLocation}`);
}
break;
case "2.1.0":
Iif (!(0, vda_5050_validators_2_1_1.validateConnection)(object)) {
throw new TypeError(`Invalid VDA 5050 Connection at ${vda_5050_validators_2_1_1.validateConnection.errors[0].keywordLocation}, ${vda_5050_validators_2_1_1.validateConnection.errors[0].instanceLocation}`);
}
break;
default:
throw new TypeError(`Connection Topic not supported with VDA 5050 Version ${vdaVersion}`);
}
break;
case __1.Topic.InstantActions:
switch (vdaVersion) {
case "1.1.0":
if (!(0, vda_5050_validators_1_1_1.validateInstantActions)(object)) {
throw new TypeError(`Invalid VDA 5050 InstantActions at ${vda_5050_validators_1_1_1.validateInstantActions.errors[0].keywordLocation}, ${vda_5050_validators_1_1_1.validateInstantActions.errors[0].instanceLocation}`);
}
break;
case "2.0.0":
if (!(0, vda_5050_validators_2_0_1.validateInstantActions)(object)) {
throw new TypeError(`Invalid VDA 5050 InstantActions at ${vda_5050_validators_2_0_1.validateInstantActions.errors[0].keywordLocation}, ${vda_5050_validators_2_0_1.validateInstantActions.errors[0].instanceLocation}`);
}
break;
case "2.1.0":
if (!(0, vda_5050_validators_2_1_1.validateInstantActions)(object)) {
throw new TypeError(`Invalid VDA 5050 InstantActions at ${vda_5050_validators_2_1_1.validateInstantActions.errors[0].keywordLocation}, ${vda_5050_validators_2_1_1.validateInstantActions.errors[0].instanceLocation}`);
}
break;
default:
throw new TypeError(`InstantAction Topic not supported with VDA 5050 Version ${vdaVersion}`);
}
break;
case __1.Topic.Order:
switch (vdaVersion) {
case "1.1.0":
if (!(0, vda_5050_validators_1_1_1.validateOrder)(object)) {
throw new TypeError(`Invalid VDA 5050 Order at ${vda_5050_validators_1_1_1.validateOrder.errors[0].keywordLocation}, ${vda_5050_validators_1_1_1.validateOrder.errors[0].instanceLocation}`);
}
break;
case "2.0.0":
if (!(0, vda_5050_validators_2_0_1.validateOrder)(object)) {
throw new TypeError(`Invalid VDA 5050 Order at ${vda_5050_validators_2_0_1.validateOrder.errors[0].keywordLocation}, ${vda_5050_validators_2_0_1.validateOrder.errors[0].instanceLocation}`);
}
break;
case "2.1.0":
if (!(0, vda_5050_validators_2_1_1.validateOrder)(object)) {
throw new TypeError(`Invalid VDA 5050 Order at ${vda_5050_validators_2_1_1.validateOrder.errors[0].keywordLocation}, ${vda_5050_validators_2_1_1.validateOrder.errors[0].instanceLocation}`);
}
break;
default:
throw new TypeError(`Order Topic not supported with VDA 5050 Version ${vdaVersion}`);
}
break;
case __1.Topic.State:
switch (vdaVersion) {
case "1.1.0":
if (!(0, vda_5050_validators_1_1_1.validateState)(object)) {
throw new TypeError(`Invalid VDA 5050 State at ${vda_5050_validators_1_1_1.validateState.errors[0].keywordLocation}, ${vda_5050_validators_1_1_1.validateState.errors[0].instanceLocation}`);
}
break;
case "2.0.0":
Iif (!(0, vda_5050_validators_2_0_1.validateState)(object)) {
throw new TypeError(`Invalid VDA 5050 State at ${vda_5050_validators_2_0_1.validateState.errors[0].keywordLocation}, ${vda_5050_validators_2_0_1.validateState.errors[0].instanceLocation}`);
}
break;
case "2.1.0":
Iif (!(0, vda_5050_validators_2_1_1.validateState)(object)) {
throw new TypeError(`Invalid VDA 5050 State at ${vda_5050_validators_2_1_1.validateState.errors[0].keywordLocation}, ${vda_5050_validators_2_1_1.validateState.errors[0].instanceLocation}`);
}
break;
default:
throw new TypeError(`State Topic not supported with VDA 5050 Version ${vdaVersion}`);
}
break;
case __1.Topic.Visualization:
switch (vdaVersion) {
case "1.1.0":
if (!(0, vda_5050_validators_1_1_1.validateVisualization)(object)) {
throw new TypeError(`Invalid VDA 5050 Visualization at ${vda_5050_validators_1_1_1.validateVisualization.errors[0].keywordLocation}, ${vda_5050_validators_1_1_1.validateVisualization.errors[0].instanceLocation}`);
}
break;
case "2.0.0":
Iif (!(0, vda_5050_validators_2_0_1.validateVisualization)(object)) {
throw new TypeError(`Invalid VDA 5050 Visualization at ${vda_5050_validators_2_0_1.validateVisualization.errors[0].keywordLocation}, ${vda_5050_validators_2_0_1.validateVisualization.errors[0].instanceLocation}`);
}
break;
case "2.1.0":
Iif (!(0, vda_5050_validators_2_1_1.validateVisualization)(object)) {
throw new TypeError(`Invalid VDA 5050 Visualization at ${vda_5050_validators_2_1_1.validateVisualization.errors[0].keywordLocation}, ${vda_5050_validators_2_1_1.validateVisualization.errors[0].instanceLocation}`);
}
break;
default:
throw new TypeError(`Visualization Topic not supported with VDA 5050 Version ${vdaVersion}`);
}
break;
case __1.Topic.Factsheet:
switch (vdaVersion) {
case "2.0.0":
Iif (!(0, vda_5050_validators_2_0_1.validateFactsheet)(object)) {
throw new TypeError(`Invalid VDA 5050 Factsheet at ${vda_5050_validators_2_0_1.validateFactsheet.errors[0].keywordLocation}, ${vda_5050_validators_2_0_1.validateFactsheet.errors[0].instanceLocation}`);
}
break;
case "2.1.0":
Iif (!(0, vda_5050_validators_2_1_1.validateFactsheet)(object)) {
throw new TypeError(`Invalid VDA 5050 Factsheet at ${vda_5050_validators_2_1_1.validateFactsheet.errors[0].keywordLocation}, ${vda_5050_validators_2_1_1.validateFactsheet.errors[0].instanceLocation}`);
}
break;
default:
throw new TypeError(`Factsheet Topic not supported with VDA 5050 Version ${vdaVersion}`);
}
break;
default:
const [, , validator] = this._extensionTopics.get(topic);
validator(topic, object);
break;
}
}
reset() {
this._subscriptionManager.clear();
}
_connect() {
var _a, _b, _c, _d, _e;
const transOpts = this.clientOptions.transport;
const mqttOpts = {
keepalive: (_a = transOpts.heartbeat) !== null && _a !== void 0 ? _a : 15,
reschedulePings: false,
clientId: this.clientId,
protocolId: "MQTT",
protocolVersion: transOpts.protocolVersion === "5.0" ? 5 : 4,
reconnectPeriod: (_b = transOpts.reconnectPeriod) !== null && _b !== void 0 ? _b : 1000,
connectTimeout: (_c = transOpts.connectTimeout) !== null && _c !== void 0 ? _c : 30000,
clean: true,
resubscribe: false,
queueQoSZero: true,
username: transOpts.username,
password: transOpts.password,
...(_d = transOpts.tlsOptions) !== null && _d !== void 0 ? _d : {},
wsOptions: (_e = transOpts.wsOptions) !== null && _e !== void 0 ? _e : {},
transformWsUrl: transOpts.transformWsUrl,
will: this._createLastWill(),
};
let connectionUrl = this.clientOptions.transport.brokerUrl;
if (this._isWebPlatform) {
connectionUrl = connectionUrl.replace(/^mqtt/, "ws");
}
return new Promise((resolve, reject) => {
this.debug("Connecting to %s", connectionUrl);
const mqtt = this._mqtt = (0, mqtt_1.connect)(connectionUrl, mqttOpts);
const onceFailureListener = error => {
this._mqtt = undefined;
mqtt.end(true, () => {
reject(error);
});
};
mqtt
.once("error", onceFailureListener)
.once("close", onceFailureListener)
.once("connect", () => {
mqtt.removeListener("error", onceFailureListener);
mqtt.removeListener("close", onceFailureListener);
resolve();
})
.prependListener("connect", () => {
this.debug("Connected to %s", connectionUrl);
const resubscribes = this._subscriptionManager.getAll();
if (resubscribes.length > 0) {
this.debug("Resubscribe %d subscription topics", resubscribes.length);
mqtt.subscribe(resubscribes);
}
})
.on("connect", () => {
this._emitConnectionStateChange("online");
})
.on("reconnect", () => {
this.debug("Reconnecting to %s", connectionUrl);
})
.on("close", () => {
this._emitConnectionStateChange("offline");
this.debug("Disconnected");
})
.on("offline", () => {
this._emitConnectionStateChange("offline");
this.debug("Offline - connection broken - reconnection pending");
})
.on("error", error => {
this._emitConnectionStateChange("offline");
this.debug("Error on connect: %s", error);
})
.on("message", (topic, payload) => {
this._dispatchMessage(topic, payload);
});
});
}
_disconnect() {
Iif (!this._mqtt) {
return;
}
const mqtt = this._mqtt;
this._mqtt = undefined;
return new Promise(resolve => {
mqtt.end(false, () => {
this.reset();
resolve();
});
});
}
_emitConnectionStateChange(connectionState) {
const previousConnectionState = this._connectionState;
this._connectionState = connectionState;
if (this._connectionStateChangeCallback) {
this._connectionStateChangeCallback(connectionState, previousConnectionState);
}
}
_dispatchMessage(mqttTopic, mqttPayload) {
var _a;
let rethrowError = false;
try {
const payloadString = mqttPayload.toString();
this.debug("Inbound message on MQTT topic %s with payload %s", mqttTopic, payloadString);
const object = JSON.parse(payloadString);
const subject = { manufacturer: object.manufacturer, serialNumber: object.serialNumber };
const [idAndHandlers, topic] = this._subscriptionManager.find(mqttTopic, subject);
if (((_a = this.clientOptions.topicObjectValidation) === null || _a === void 0 ? void 0 : _a.inbound) !== false) {
this.validateTopicObject(topic, object, this.clientOptions.vdaVersion);
}
rethrowError = true;
for (const [id, handler] of idAndHandlers) {
handler(object, subject, topic, id);
}
}
catch (error) {
if (rethrowError) {
this.debug("Uncaught error in handler for inbound message on MQTT topic %s: %s", mqttTopic, error.message);
throw error;
}
console.error("Drop inbound message on MQTT topic %s with error: %s", mqttTopic, error.message);
this.debug("Drop inbound message on MQTT topic %s with error: %s", mqttTopic, error.message);
}
}
_validateOptions(options) {
var _a;
if (options.interfaceName === undefined) {
throw new TypeError("ClientOption interfaceName is required");
}
if (!this._isValidTopicLevel(options.interfaceName)) {
throw new TypeError("ClientOption interfaceName is not a valid MQTT topic level");
}
if (!((_a = options.transport) === null || _a === void 0 ? void 0 : _a.brokerUrl)) {
throw new TypeError("MqttTransportOption brokerUrl is missing");
}
Iif (options.vdaVersion === undefined) {
throw new TypeError(`Vda Version is required`);
}
Iif (!this._isValidVdaVersion(options.vdaVersion)) {
throw new TypeError(`Vda ${options.vdaVersion} Version not supported`);
}
}
_isValidVdaVersion(version) {
return version === "1.1.0" || version === "1.1" || version === "2.0" || version === "2.0.0" || version === "2.1" || version === "2.1.0";
}
_validateTopic(topic, forSubscription) {
if (!topic) {
throw new TypeError("Topic undefined or empty");
}
if (!this._isValidTopicLevel(topic)) {
throw new TypeError(`Topic ${topic} is not a valid MQTT topic level`);
}
if ((0, __1.isExtensionTopic)(topic)) {
if (!this._extensionTopics.has(topic)) {
throw new TypeError(`Extension topic ${topic} is not registered`);
}
const [asInbound, asOutbound] = this._extensionTopics.get(topic);
if (forSubscription && !asInbound) {
throw new TypeError(`Extension topic ${topic} is not registered for inbound communication`);
}
if (!forSubscription && !asOutbound) {
throw new TypeError(`Extension topic ${topic} is not registered for outbound communication`);
}
}
else {
this.validateTopicDirection(topic, forSubscription);
}
}
_isValidTopicLevel(name) {
return !Client.ILLEGAL_TOPIC_LEVEL_CHARS_REGEX.test(name);
}
_createLastWill() {
const lastWill = this.getLastWillTopic();
if (lastWill) {
const mqttTopic = this._subscriptionManager.getMqttTopic(lastWill.topic, lastWill.subject);
return this._withMqttProperties({
topic: mqttTopic,
payload: JSON.stringify(this._withObjectHeader(lastWill.topic, lastWill.subject, lastWill.object)),
retain: lastWill.retainMessage,
});
}
return undefined;
}
_withMqttProperties(pub) {
pub.qos = 0;
switch (this.clientOptions.transport.protocolVersion) {
case "5.0":
pub.properties = {
payloadFormatIndicator: true,
contentType: "application/json",
};
break;
case "3.1.1":
default:
break;
}
return pub;
}
_withObjectHeader(topic, subject, object) {
const obj = Object.assign({}, object);
if (obj.timestamp === undefined) {
obj.timestamp = new Date().toISOString();
}
obj.headerId = this._nextHeaderId(topic);
obj.manufacturer = subject.manufacturer;
obj.serialNumber = subject.serialNumber;
obj.version = this.getProtocolVersion();
return obj;
}
_nextHeaderId(topic) {
var _a;
const id = (_a = this._headerIds.get(topic)) !== null && _a !== void 0 ? _a : 0;
this._headerIds.set(topic, id < 0xFFFFFFFF ? id + 1 : 0);
return id;
}
}
exports.Client = Client;
Client.ILLEGAL_TOPIC_LEVEL_CHARS_REGEX = /[\u0000+#/]/;
Client.DEFAULT_MQTT_TOPIC_FORMAT = "%interfaceName%/%majorVersion%/%manufacturer%/%serialNumber%/%topic%";
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