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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%"; |