diff --git a/package.json b/package.json index 2cfb845..d2cd8de 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "ngx-mqtt", - "version": "6.7.0", + "version": "6.8.0", "description": "ngx mqtt client library", "main": "bundles/ngx-mqtt.min.js", "module": "./src/index.js", @@ -66,6 +66,7 @@ "karma-mocha-reporter": "^2.1.0", "karma-sourcemap-loader": "^0.3.7", "karma-webpack": "^3.0.0", + "mqtt": "github:mqttjs/MQTT.js#16848192d5e31918d5b63a697803231caef74a3a", "reflect-metadata": "^0.1.12", "rimraf": "^2.6.2", "rxjs": "^6.2.1", diff --git a/src/mqtt-types/index.d.ts b/src/mqtt-types/index.d.ts deleted file mode 100644 index 84d1357..0000000 --- a/src/mqtt-types/index.d.ts +++ /dev/null @@ -1,7 +0,0 @@ -export * from './lib/client' -export * from './lib/connect' -export * from './lib/store' -export * from './lib/types' -export * from './lib/client-options' -import { MqttClient } from './lib/client' -export { MqttClient as Client } diff --git a/src/mqtt-types/lib/client-options.d.ts b/src/mqtt-types/lib/client-options.d.ts deleted file mode 100644 index 501eebc..0000000 --- a/src/mqtt-types/lib/client-options.d.ts +++ /dev/null @@ -1,124 +0,0 @@ -import { MqttClient } from './client' -import { Store } from './store' -import { QoS } from './types' - -export interface IClientOptions extends ISecureClientOptions { - port?: number // port is made into a number subsequently - host?: string // host does NOT include port - hostname?: string - path?: string - protocol?: 'wss' | 'ws' - - wsOptions?: { - [x: string]: any - } - /** - * 10 seconds, set to 0 to disable - */ - keepalive?: number - /** - * 'mqttjs_' + Math.random().toString(16).substr(2, 8) - */ - clientId?: string - /** - * 'MQTT' - */ - protocolId?: string - /** - * 4 - */ - protocolVersion?: number - /** - * true, set to false to receive QoS 1 and 2 messages while offline - */ - clean?: boolean - /** - * 1000 milliseconds, interval between two reconnections - */ - reconnectPeriod?: number - /** - * 30 * 1000 milliseconds, time to wait before a CONNACK is received - */ - connectTimeout?: number - /** - * the username required by your broker, if any - */ - username?: string - /** - * the password required by your broker, if any - */ - password?: string - /** - * a Store for the incoming packets - */ - incomingStore?: Store - /** - * a Store for the outgoing packets - */ - outgoingStore?: Store - queueQoSZero?: boolean - reschedulePings?: boolean - servers?: Array<{ - host: string - port: number - }> - /** - * true, set to false to disable re-subscribe functionality - */ - resubscribe?: boolean - /** - * a message that will sent by the broker automatically when the client disconnect badly. - */ - will?: { - /** - * the topic to publish - */ - topic: string - /** - * the message to publish - */ - payload: string - /** - * the QoS - */ - qos: QoS - /** - * the retain flag - */ - retain: boolean - } - transformWsUrl?: (url: string, options: IClientOptions, client: MqttClient) => string -} -export interface ISecureClientOptions { - rejectUnauthorized?: boolean -} -export interface IClientPublishOptions { - /** - * the QoS - */ - qos: QoS - /** - * the retain flag - */ - retain?: boolean - /** - * whether or not mark a message as duplicate - */ - dup?: boolean -} -export interface IClientSubscribeOptions { - /** - * the QoS - */ - qos: QoS -} -export interface IClientReconnectOptions { - /** - * a Store for the incoming packets - */ - incomingStore?: Store - /** - * a Store for the outgoing packets - */ - outgoingStore?: Store -} diff --git a/src/mqtt-types/lib/client.d.ts b/src/mqtt-types/lib/client.d.ts deleted file mode 100644 index 6f17974..0000000 --- a/src/mqtt-types/lib/client.d.ts +++ /dev/null @@ -1,196 +0,0 @@ -/// - -import * as events from 'events' -import { - IClientOptions, - IClientPublishOptions, - IClientSubscribeOptions, - IClientReconnectOptions -} from './client-options' -import { Store } from './store' -import { Packet, QoS } from './types' - -export interface ISubscriptionGrant { - /** - * is a subscribed to topic - */ - topic: string - /** - * is the granted qos level on it, may return 128 on error - */ - qos: QoS | number -} -export interface ISubscriptionRequest { - /** - * is a subscribed to topic - */ - topic: string - /** - * is the granted qos level on it - */ - qos: QoS -} -export interface ISubscriptionMap { - /** - * object which has topic names as object keys and as value the QoS, like {'test1': 0, 'test2': 1}. - */ - [topic: string]: QoS -} - -export declare type ClientSubscribeCallback = (err: Error, granted: ISubscriptionGrant[]) => void -export declare type OnMessageCallback = (topic: string, payload: Buffer, packet: Packet) => void -export declare type OnPacketCallback = (packet: Packet) => void -export declare type OnErrorCallback = (error: Error) => void -export declare type PacketCallback = (error?: Error, packet?: Packet) => any -export declare type CloseCallback = () => void - -export interface IStream extends events.EventEmitter { - pipe (to: any): any - destroy (): any - end (): any -} -/** - * MqttClient constructor - * - * @param {Stream} stream - stream - * @param {Object} [options] - connection options - * (see Connection#connect) - */ -export declare class MqttClient extends events.EventEmitter { - public connected: boolean - public disconnecting: boolean - public disconnected: boolean - public reconnecting: boolean - public incomingStore: Store - public outgoingStore: Store - public options: IClientOptions - public queueQoSZero: boolean - - constructor (streamBuilder: (client: MqttClient) => IStream, options: IClientOptions) - - public on (event: 'message', cb: OnMessageCallback): this - public on (event: 'packetsend' | 'packetreceive', cb: OnPacketCallback): this - public on (event: 'error', cb: OnErrorCallback): this - public on (event: string, cb: Function): this - - public once (event: 'message', cb: OnMessageCallback): this - public once (event: - 'packetsend' - | 'packetreceive', cb: OnPacketCallback): this - public once (event: 'error', cb: OnErrorCallback): this - public once (event: string, cb: Function): this - - /** - * publish - publish to - * - * @param {String} topic - topic to publish to - * @param {(String|Buffer)} message - message to publish - * - * @param {Object} [opts] - publish options, includes: - * @param {Number} [opts.qos] - qos level to publish on - * @param {Boolean} [opts.retain] - whether or not to retain the message - * - * @param {Function} [callback] - function(err){} - * called when publish succeeds or fails - * @returns {Client} this - for chaining - * @api public - * - * @example client.publish('topic', 'message') - * @example - * client.publish('topic', 'message', {qos: 1, retain: true}) - * @example client.publish('topic', 'message', console.log) - */ - public publish (topic: string, message: string | Buffer, - opts: IClientPublishOptions, callback?: PacketCallback): this - public publish (topic: string, message: string | Buffer, - callback?: PacketCallback): this - - /** - * subscribe - subscribe to - * - * @param {String, Array, Object} topic - topic(s) to subscribe to, supports objects in the form {'topic': qos} - * @param {Object} [opts] - optional subscription options, includes: - * @param {Number} [opts.qos] - subscribe qos level - * @param {Function} [callback] - function(err, granted){} where: - * {Error} err - subscription error (none at the moment!) - * {Array} granted - array of {topic: 't', qos: 0} - * @returns {MqttClient} this - for chaining - * @api public - * @example client.subscribe('topic') - * @example client.subscribe('topic', {qos: 1}) - * @example client.subscribe({'topic': 0, 'topic2': 1}, console.log) - * @example client.subscribe('topic', console.log) - */ - public subscribe (topic: - string - | string[], opts: IClientSubscribeOptions, callback?: ClientSubscribeCallback): this - public subscribe (topic: - string - | string[] - | ISubscriptionMap, callback?: ClientSubscribeCallback): this - - /** - * unsubscribe - unsubscribe from topic(s) - * - * @param {String, Array} topic - topics to unsubscribe from - * @param {Function} [callback] - callback fired on unsuback - * @returns {MqttClient} this - for chaining - * @api public - * @example client.unsubscribe('topic') - * @example client.unsubscribe('topic', console.log) - */ - public unsubscribe (topic: string | string[], callback?: PacketCallback): this - - /** - * end - close connection - * - * @returns {MqttClient} this - for chaining - * @param {Boolean} force - do not wait for all in-flight messages to be acked - * @param {Function} cb - called when the client has been closed - * - * @api public - */ - public end (force?: boolean, cb?: CloseCallback): this - - /** - * removeOutgoingMessage - remove a message in outgoing store - * the outgoing callback will be called withe Error('Message removed') if the message is removed - * - * @param {Number} mid - messageId to remove message - * @returns {MqttClient} this - for chaining - * @api public - * - * @example client.removeOutgoingMessage(client.getLastMessageId()); - */ - public removeOutgoingMessage (mid: number): this - - /** - * reconnect - connect again using the same options as connect() - * - * @param {Object} [opts] - optional reconnect options, includes: - * {Store} incomingStore - a store for the incoming packets - * {Store} outgoingStore - a store for the outgoing packets - * if opts is not given, current stores are used - * - * @returns {MqttClient} this - for chaining - * - * @api public - */ - public reconnect (opts?: IClientReconnectOptions): this - - /** - * Handle messages with backpressure support, one at a time. - * Override at will. - * - * @param packet packet the packet - * @param callback callback call when finished - * @api public - */ - public handleMessage (packet: Packet, callback: PacketCallback): void - - /** - * getLastMessageId - */ - public getLastMessageId (): number -} -export { IClientOptions } diff --git a/src/mqtt-types/lib/connect/index.d.ts b/src/mqtt-types/lib/connect/index.d.ts deleted file mode 100644 index d058373..0000000 --- a/src/mqtt-types/lib/connect/index.d.ts +++ /dev/null @@ -1,10 +0,0 @@ -import { IClientOptions, MqttClient } from '../client' -/** - * connect - connect to an MQTT broker. - * - * @param {String} [brokerUrl] - url of the broker, optional - * @param {Object} opts - see MqttClient#constructor - */ -declare function connect (brokerUrl?: string | any, opts?: IClientOptions): MqttClient -export { connect } -export { MqttClient } diff --git a/src/mqtt-types/lib/store-options.d.ts b/src/mqtt-types/lib/store-options.d.ts deleted file mode 100644 index 03a175e..0000000 --- a/src/mqtt-types/lib/store-options.d.ts +++ /dev/null @@ -1,6 +0,0 @@ -export interface IStoreOptions { - /** - * true, clear _inflights at close - */ - clean?: boolean -} diff --git a/src/mqtt-types/lib/store.d.ts b/src/mqtt-types/lib/store.d.ts deleted file mode 100644 index dd4c17f..0000000 --- a/src/mqtt-types/lib/store.d.ts +++ /dev/null @@ -1,46 +0,0 @@ -import { - IStoreOptions -} from './store-options' - -/** - * In-memory implementation of the message store - * This can actually be saved into files. - * - */ -declare class Store { - /** - * Store constructor - * - * @param {Object} [options] - store options - */ - constructor (options: IStoreOptions) - - /** - * Adds a packet to the store, a packet is - * anything that has a messageId property. - * - */ - public put (packet: any, cb?: Function): this - - /** - * Creates a stream with all the packets in the store - * - */ - public createStream (): any - - /** - * deletes a packet from the store. - */ - public del (packet: any, cb: Function): this - - /** - * get a packet from the store. - */ - public get (packet: any, cb: Function): this - - /** - * Close the store - */ - public close (cb: Function): void -} -export { Store } diff --git a/src/mqtt-types/lib/types.d.ts b/src/mqtt-types/lib/types.d.ts deleted file mode 100644 index 1be94e1..0000000 --- a/src/mqtt-types/lib/types.d.ts +++ /dev/null @@ -1,104 +0,0 @@ -/// -export declare type QoS = 0 | 1 | 2 -export declare type PacketCmd = 'connack' | - 'connect' | - 'disconnect' | - 'pingreq' | - 'pingresp' | - 'puback' | - 'pubcomp' | - 'publish' | - 'pubrel' | - 'pubrec' | - 'suback' | - 'subscribe' | - 'unsuback' | - 'unsubscribe' -export interface IPacket { - cmd: PacketCmd - messageId?: number - length?: number -} -export interface IConnectPacket extends IPacket { - cmd: 'connect' - clientId: string - protocolVersion?: 4 | 3 - protocolId?: 'MQTT' | 'MQIsdp' - clean?: boolean - keepalive?: number - username?: string - password?: Buffer - will?: { - topic: string - payload: Buffer - qos?: QoS - retain?: boolean - } -} -export interface IPublishPacket extends IPacket { - cmd: 'publish' - qos: QoS - dup: boolean - retain: boolean - topic: string - payload: string | Buffer -} -export interface IConnackPacket extends IPacket { - cmd: 'connack' - returnCode: number - sessionPresent: boolean -} -export interface ISubscribePacket extends IPacket { - cmd: 'subscribe' - subscriptions: Array<{ - topic: string - qos: QoS - }> -} -export interface ISubackPacket extends IPacket { - cmd: 'suback' - granted: number[] -} -export interface IUnsubscribePacket extends IPacket { - cmd: 'unsubscribe' - unsubscriptions: string[] -} -export interface IUnsubackPacket extends IPacket { - cmd: 'unsuback' -} -export interface IPubackPacket extends IPacket { - cmd: 'puback' -} -export interface IPubcompPacket extends IPacket { - cmd: 'pubcomp' -} -export interface IPubrelPacket extends IPacket { - cmd: 'pubrel' -} -export interface IPubrecPacket extends IPacket { - cmd: 'pubrec' -} -export interface IPingreqPacket extends IPacket { - cmd: 'pingreq' -} -export interface IPingrespPacket extends IPacket { - cmd: 'pingresp' -} -export interface IDisconnectPacket extends IPacket { - cmd: 'disconnect' -} - -export declare type Packet = IConnectPacket | - IPublishPacket | - IConnackPacket | - ISubscribePacket | - ISubackPacket | - IUnsubscribePacket | - IUnsubackPacket | - IPubackPacket | - IPubcompPacket | - IPubrelPacket | - IPingreqPacket | - IPingrespPacket | - IDisconnectPacket | - IPubrecPacket diff --git a/src/mqtt.model.ts b/src/mqtt.model.ts index dcc7c5a..1f08d0e 100644 --- a/src/mqtt.model.ts +++ b/src/mqtt.model.ts @@ -1,5 +1,5 @@ import { Stream } from 'stream'; -import { MqttClient, IClientOptions, IClientPublishOptions, IPacket } from './mqtt-types'; +import { MqttClient, IClientOptions, IClientPublishOptions, IPacket } from 'mqtt'; export enum MqttConnectionState { CLOSED, diff --git a/src/mqtt.service.ts b/src/mqtt.service.ts index a4a9472..85a42fa 100644 --- a/src/mqtt.service.ts +++ b/src/mqtt.service.ts @@ -1,6 +1,6 @@ import { EventEmitter, Inject, Injectable } from '@angular/core'; -import { ISubscriptionGrant, IClientSubscribeOptions } from './mqtt-types'; -import { connect } from '../vendor/mqtt.browserified.js'; +import { ISubscriptionGrant, IClientSubscribeOptions } from 'mqtt'; +import { connect } from '../vendor/mqtt.min.js'; import * as extend from 'xtend'; import { diff --git a/vendor/mqtt.browserified.js b/vendor/mqtt.browserified.js deleted file mode 100644 index 9541d31..0000000 --- a/vendor/mqtt.browserified.js +++ /dev/null @@ -1,11551 +0,0 @@ -(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.mqtt = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i 0) { - outStore.read(0) - cb = that.outgoing[packet.messageId] - that.outgoing[packet.messageId] = function (err, status) { - // Ensure that the original callback passed in to publish gets invoked - if (cb) { - cb(err, status) - } - - storeDeliver() - } - that._sendPacket(packet) - } else if (outStore.destroy) { - outStore.destroy() - } - } - storeDeliver() - }).on('error', this.emit.bind(this, 'error')) - }) - - // Mark disconnected on stream close - this.on('close', function () { - this.connected = false - clearTimeout(this.connackTimer) - }) - - // Setup ping timer - this.on('connect', this._setupPingTimer) - - // Send queued packets - this.on('connect', function () { - var queue = this.queue - - function deliver () { - var entry = queue.shift() - var packet = null - - if (!entry) { - return - } - - packet = entry.packet - - that._sendPacket( - packet, - function (err) { - if (entry.cb) { - entry.cb(err) - } - deliver() - } - ) - } - - deliver() - }) - - var firstConnection = true - // resubscribe - this.on('connect', function () { - if (!firstConnection && - this.options.clean && - Object.keys(this._resubscribeTopics).length > 0) { - if (this.options.resubscribe) { - this._resubscribeTopics.resubscribe = true - this.subscribe(this._resubscribeTopics) - } else { - this._resubscribeTopics = {} - } - } - - firstConnection = false - }) - - // Clear ping timer - this.on('close', function () { - if (that.pingTimer !== null) { - that.pingTimer.clear() - that.pingTimer = null - } - }) - - // Setup reconnect timer on disconnect - this.on('close', this._setupReconnect) - - events.EventEmitter.call(this) - - this._setupStream() -} -inherits(MqttClient, events.EventEmitter) - -/** - * setup the event handlers in the inner stream. - * - * @api private - */ -MqttClient.prototype._setupStream = function () { - var connectPacket - var that = this - var writable = new Writable() - var parser = mqttPacket.parser(this.options) - var completeParse = null - var packets = [] - - this._clearReconnect() - - this.stream = this.streamBuilder(this) - - parser.on('packet', function (packet) { - packets.push(packet) - }) - - function nextTickWork () { - process.nextTick(work) - } - - function work () { - var packet = packets.shift() - var done = completeParse - - if (packet) { - that._handlePacket(packet, nextTickWork) - } else { - completeParse = null - done() - } - } - - writable._write = function (buf, enc, done) { - completeParse = done - parser.parse(buf) - work() - } - - this.stream.pipe(writable) - - // Suppress connection errors - this.stream.on('error', nop) - - // Echo stream close - eos(this.stream, this.emit.bind(this, 'close')) - - // Send a connect packet - connectPacket = Object.create(this.options) - connectPacket.cmd = 'connect' - // avoid message queue - sendPacket(this, connectPacket) - - // Echo connection errors - parser.on('error', this.emit.bind(this, 'error')) - - // many drain listeners are needed for qos 1 callbacks if the connection is intermittent - this.stream.setMaxListeners(1000) - - clearTimeout(this.connackTimer) - this.connackTimer = setTimeout(function () { - that._cleanUp(true) - }, this.options.connectTimeout) -} - -MqttClient.prototype._handlePacket = function (packet, done) { - this.emit('packetreceive', packet) - - switch (packet.cmd) { - case 'publish': - this._handlePublish(packet, done) - break - case 'puback': - case 'pubrec': - case 'pubcomp': - case 'suback': - case 'unsuback': - this._handleAck(packet) - done() - break - case 'pubrel': - this._handlePubrel(packet, done) - break - case 'connack': - this._handleConnack(packet) - done() - break - case 'pingresp': - this._handlePingresp(packet) - done() - break - default: - // do nothing - // maybe we should do an error handling - // or just log it - break - } -} - -MqttClient.prototype._checkDisconnecting = function (callback) { - if (this.disconnecting) { - if (callback) { - callback(new Error('client disconnecting')) - } else { - this.emit('error', new Error('client disconnecting')) - } - } - return this.disconnecting -} - -/** - * publish - publish to - * - * @param {String} topic - topic to publish to - * @param {String, Buffer} message - message to publish - * @param {Object} [opts] - publish options, includes: - * {Number} qos - qos level to publish on - * {Boolean} retain - whether or not to retain the message - * {Boolean} dup - whether or not mark a message as duplicate - * @param {Function} [callback] - function(err){} - * called when publish succeeds or fails - * @returns {MqttClient} this - for chaining - * @api public - * - * @example client.publish('topic', 'message'); - * @example - * client.publish('topic', 'message', {qos: 1, retain: true, dup: true}); - * @example client.publish('topic', 'message', console.log); - */ -MqttClient.prototype.publish = function (topic, message, opts, callback) { - var packet - - // .publish(topic, payload, cb); - if (typeof opts === 'function') { - callback = opts - opts = null - } - - // default opts - var defaultOpts = {qos: 0, retain: false, dup: false} - opts = xtend(defaultOpts, opts) - - if (this._checkDisconnecting(callback)) { - return this - } - - packet = { - cmd: 'publish', - topic: topic, - payload: message, - qos: opts.qos, - retain: opts.retain, - messageId: this._nextId(), - dup: opts.dup - } - - switch (opts.qos) { - case 1: - case 2: - - // Add to callbacks - this.outgoing[packet.messageId] = callback || nop - this._sendPacket(packet) - break - default: - this._sendPacket(packet, callback) - break - } - - return this -} - -/** - * subscribe - subscribe to - * - * @param {String, Array, Object} topic - topic(s) to subscribe to, supports objects in the form {'topic': qos} - * @param {Object} [opts] - optional subscription options, includes: - * {Number} qos - subscribe qos level - * @param {Function} [callback] - function(err, granted){} where: - * {Error} err - subscription error (none at the moment!) - * {Array} granted - array of {topic: 't', qos: 0} - * @returns {MqttClient} this - for chaining - * @api public - * @example client.subscribe('topic'); - * @example client.subscribe('topic', {qos: 1}); - * @example client.subscribe({'topic': 0, 'topic2': 1}, console.log); - * @example client.subscribe('topic', console.log); - */ -MqttClient.prototype.subscribe = function () { - var packet - var args = Array.prototype.slice.call(arguments) - var subs = [] - var obj = args.shift() - var resubscribe = obj.resubscribe - var callback = args.pop() || nop - var opts = args.pop() - var invalidTopic - var that = this - - delete obj.resubscribe - - if (typeof obj === 'string') { - obj = [obj] - } - - if (typeof callback !== 'function') { - opts = callback - callback = nop - } - - invalidTopic = validations.validateTopics(obj) - if (invalidTopic !== null) { - setImmediate(callback, new Error('Invalid topic ' + invalidTopic)) - return this - } - - if (this._checkDisconnecting(callback)) { - return this - } - - var defaultOpts = { qos: 0 } - opts = xtend(defaultOpts, opts) - - if (Array.isArray(obj)) { - obj.forEach(function (topic) { - if (that._resubscribeTopics[topic] < opts.qos || - !that._resubscribeTopics.hasOwnProperty(topic) || - resubscribe) { - subs.push({ - topic: topic, - qos: opts.qos - }) - } - }) - } else { - Object - .keys(obj) - .forEach(function (k) { - if (that._resubscribeTopics[k] < obj[k] || - !that._resubscribeTopics.hasOwnProperty(k) || - resubscribe) { - subs.push({ - topic: k, - qos: obj[k] - }) - } - }) - } - - packet = { - cmd: 'subscribe', - subscriptions: subs, - qos: 1, - retain: false, - dup: false, - messageId: this._nextId() - } - - if (!subs.length) { - callback(null, []) - return - } - - // subscriptions to resubscribe to in case of disconnect - if (this.options.resubscribe) { - var topics = [] - subs.forEach(function (sub) { - if (that.options.reconnectPeriod > 0) { - that._resubscribeTopics[sub.topic] = sub.qos - topics.push(sub.topic) - } - }) - that.messageIdToTopic[packet.messageId] = topics - } - - this.outgoing[packet.messageId] = function (err, packet) { - if (!err) { - var granted = packet.granted - for (var i = 0; i < granted.length; i += 1) { - subs[i].qos = granted[i] - } - } - - callback(err, subs) - } - - this._sendPacket(packet) - - return this -} - -/** - * unsubscribe - unsubscribe from topic(s) - * - * @param {String, Array} topic - topics to unsubscribe from - * @param {Function} [callback] - callback fired on unsuback - * @returns {MqttClient} this - for chaining - * @api public - * @example client.unsubscribe('topic'); - * @example client.unsubscribe('topic', console.log); - */ -MqttClient.prototype.unsubscribe = function (topic, callback) { - var packet = { - cmd: 'unsubscribe', - qos: 1, - messageId: this._nextId() - } - var that = this - - callback = callback || nop - - if (this._checkDisconnecting(callback)) { - return this - } - - if (typeof topic === 'string') { - packet.unsubscriptions = [topic] - } else if (typeof topic === 'object' && topic.length) { - packet.unsubscriptions = topic - } - - if (this.options.resubscribe) { - packet.unsubscriptions.forEach(function (topic) { - delete that._resubscribeTopics[topic] - }) - } - - this.outgoing[packet.messageId] = callback - - this._sendPacket(packet) - - return this -} - -/** - * end - close connection - * - * @returns {MqttClient} this - for chaining - * @param {Boolean} force - do not wait for all in-flight messages to be acked - * @param {Function} cb - called when the client has been closed - * - * @api public - */ -MqttClient.prototype.end = function (force, cb) { - var that = this - - if (typeof force === 'function') { - cb = force - force = false - } - - function closeStores () { - that.disconnected = true - that.incomingStore.close(function () { - that.outgoingStore.close(function () { - if (cb) { - cb.apply(null, arguments) - } - that.emit('end') - }) - }) - if (that._deferredReconnect) { - that._deferredReconnect() - } - } - - function finish () { - // defer closesStores of an I/O cycle, - // just to make sure things are - // ok for websockets - that._cleanUp(force, setImmediate.bind(null, closeStores)) - } - - if (this.disconnecting) { - return this - } - - this._clearReconnect() - - this.disconnecting = true - - if (!force && Object.keys(this.outgoing).length > 0) { - // wait 10ms, just to be sure we received all of it - this.once('outgoingEmpty', setTimeout.bind(null, finish, 10)) - } else { - finish() - } - - return this -} - -/** - * removeOutgoingMessage - remove a message in outgoing store - * the outgoing callback will be called withe Error('Message removed') if the message is removed - * - * @param {Number} mid - messageId to remove message - * @returns {MqttClient} this - for chaining - * @api public - * - * @example client.removeOutgoingMessage(client.getLastMessageId()); - */ -MqttClient.prototype.removeOutgoingMessage = function (mid) { - var cb = this.outgoing[mid] - delete this.outgoing[mid] - this.outgoingStore.del({messageId: mid}, function () { - cb(new Error('Message removed')) - }) - return this -} - -/** - * reconnect - connect again using the same options as connect() - * - * @param {Object} [opts] - optional reconnect options, includes: - * {Store} incomingStore - a store for the incoming packets - * {Store} outgoingStore - a store for the outgoing packets - * if opts is not given, current stores are used - * @returns {MqttClient} this - for chaining - * - * @api public - */ -MqttClient.prototype.reconnect = function (opts) { - var that = this - var f = function () { - if (opts) { - that.options.incomingStore = opts.incomingStore - that.options.outgoingStore = opts.outgoingStore - } else { - that.options.incomingStore = null - that.options.outgoingStore = null - } - that.incomingStore = that.options.incomingStore || new Store() - that.outgoingStore = that.options.outgoingStore || new Store() - that.disconnecting = false - that.disconnected = false - that._deferredReconnect = null - that._reconnect() - } - - if (this.disconnecting && !this.disconnected) { - this._deferredReconnect = f - } else { - f() - } - return this -} - -/** - * _reconnect - implement reconnection - * @api privateish - */ -MqttClient.prototype._reconnect = function () { - this.emit('reconnect') - this._setupStream() -} - -/** - * _setupReconnect - setup reconnect timer - */ -MqttClient.prototype._setupReconnect = function () { - var that = this - - if (!that.disconnecting && !that.reconnectTimer && (that.options.reconnectPeriod > 0)) { - if (!this.reconnecting) { - this.emit('offline') - this.reconnecting = true - } - that.reconnectTimer = setInterval(function () { - that._reconnect() - }, that.options.reconnectPeriod) - } -} - -/** - * _clearReconnect - clear the reconnect timer - */ -MqttClient.prototype._clearReconnect = function () { - if (this.reconnectTimer) { - clearInterval(this.reconnectTimer) - this.reconnectTimer = null - } -} - -/** - * _cleanUp - clean up on connection end - * @api private - */ -MqttClient.prototype._cleanUp = function (forced, done) { - if (done) { - this.stream.on('close', done) - } - - if (forced) { - if ((this.options.reconnectPeriod === 0) && this.options.clean) { - flush(this.outgoing) - } - this.stream.destroy() - } else { - this._sendPacket( - { cmd: 'disconnect' }, - setImmediate.bind( - null, - this.stream.end.bind(this.stream) - ) - ) - } - - if (!this.disconnecting) { - this._clearReconnect() - this._setupReconnect() - } - - if (this.pingTimer !== null) { - this.pingTimer.clear() - this.pingTimer = null - } - - if (done && !this.connected) { - this.stream.removeListener('close', done) - done() - } -} - -/** - * _sendPacket - send or queue a packet - * @param {String} type - packet type (see `protocol`) - * @param {Object} packet - packet options - * @param {Function} cb - callback when the packet is sent - * @api private - */ -MqttClient.prototype._sendPacket = function (packet, cb) { - if (!this.connected) { - if (((packet.qos || 0) === 0 && this.queueQoSZero) || packet.cmd !== 'publish') { - this.queue.push({ packet: packet, cb: cb }) - } else if (packet.qos > 0) { - cb = this.outgoing[packet.messageId] - this.outgoingStore.put(packet, function (err) { - if (err) { - return cb && cb(err) - } - }) - } else if (cb) { - cb(new Error('No connection to broker')) - } - - return - } - - // When sending a packet, reschedule the ping timer - this._shiftPingInterval() - - if (packet.cmd !== 'publish') { - sendPacket(this, packet, cb) - return - } - - switch (packet.qos) { - case 2: - case 1: - storeAndSend(this, packet, cb) - break - /** - * no need of case here since it will be caught by default - * and jshint comply that before default it must be a break - * anyway it will result in -1 evaluation - */ - case 0: - /* falls through */ - default: - sendPacket(this, packet, cb) - break - } -} - -/** - * _setupPingTimer - setup the ping timer - * - * @api private - */ -MqttClient.prototype._setupPingTimer = function () { - var that = this - - if (!this.pingTimer && this.options.keepalive) { - this.pingResp = true - this.pingTimer = reInterval(function () { - that._checkPing() - }, this.options.keepalive * 1000) - } -} - -/** - * _shiftPingInterval - reschedule the ping interval - * - * @api private - */ -MqttClient.prototype._shiftPingInterval = function () { - if (this.pingTimer && this.options.keepalive && this.options.reschedulePings) { - this.pingTimer.reschedule(this.options.keepalive * 1000) - } -} -/** - * _checkPing - check if a pingresp has come back, and ping the server again - * - * @api private - */ -MqttClient.prototype._checkPing = function () { - if (this.pingResp) { - this.pingResp = false - this._sendPacket({ cmd: 'pingreq' }) - } else { - // do a forced cleanup since socket will be in bad shape - this._cleanUp(true) - } -} - -/** - * _handlePingresp - handle a pingresp - * - * @api private - */ -MqttClient.prototype._handlePingresp = function () { - this.pingResp = true -} - -/** - * _handleConnack - * - * @param {Object} packet - * @api private - */ - -MqttClient.prototype._handleConnack = function (packet) { - var rc = packet.returnCode - var errors = [ - '', - 'Unacceptable protocol version', - 'Identifier rejected', - 'Server unavailable', - 'Bad username or password', - 'Not authorized' - ] - - clearTimeout(this.connackTimer) - - if (rc === 0) { - this.reconnecting = false - this.emit('connect', packet) - } else if (rc > 0) { - var err = new Error('Connection refused: ' + errors[rc]) - err.code = rc - this.emit('error', err) - } -} - -/** - * _handlePublish - * - * @param {Object} packet - * @api private - */ -/* -those late 2 case should be rewrite to comply with coding style: - -case 1: -case 0: - // do not wait sending a puback - // no callback passed - if (1 === qos) { - this._sendPacket({ - cmd: 'puback', - messageId: mid - }); - } - // emit the message event for both qos 1 and 0 - this.emit('message', topic, message, packet); - this.handleMessage(packet, done); - break; -default: - // do nothing but every switch mus have a default - // log or throw an error about unknown qos - break; - -for now i just suppressed the warnings -*/ -MqttClient.prototype._handlePublish = function (packet, done) { - var topic = packet.topic.toString() - var message = packet.payload - var qos = packet.qos - var mid = packet.messageId - var that = this - - switch (qos) { - case 2: - this.incomingStore.put(packet, function () { - that._sendPacket({cmd: 'pubrec', messageId: mid}, done) - }) - break - case 1: - // emit the message event - this.emit('message', topic, message, packet) - this.handleMessage(packet, function (err) { - if (err) { - return done && done(err) - } - // send 'puback' if the above 'handleMessage' method executed - // successfully. - that._sendPacket({cmd: 'puback', messageId: mid}, done) - }) - break - case 0: - // emit the message event - this.emit('message', topic, message, packet) - this.handleMessage(packet, done) - break - default: - // do nothing - // log or throw an error about unknown qos - break - } -} - -/** - * Handle messages with backpressure support, one at a time. - * Override at will. - * - * @param Packet packet the packet - * @param Function callback call when finished - * @api public - */ -MqttClient.prototype.handleMessage = function (packet, callback) { - callback() -} - -/** - * _handleAck - * - * @param {Object} packet - * @api private - */ - -MqttClient.prototype._handleAck = function (packet) { - /* eslint no-fallthrough: "off" */ - var mid = packet.messageId - var type = packet.cmd - var response = null - var cb = this.outgoing[mid] - var that = this - - if (!cb) { - // Server sent an ack in error, ignore it. - return - } - - // Process - switch (type) { - case 'pubcomp': - // same thing as puback for QoS 2 - case 'puback': - // Callback - we're done - delete this.outgoing[mid] - this.outgoingStore.del(packet, cb) - break - case 'pubrec': - response = { - cmd: 'pubrel', - qos: 2, - messageId: mid - } - - this._sendPacket(response) - break - case 'suback': - delete this.outgoing[mid] - if (packet.granted.length === 1 && (packet.granted[0] & 0x80) !== 0) { - // suback with Failure status - var topics = this.messageIdToTopic[mid] - if (topics) { - topics.forEach(function (topic) { - delete that._resubscribeTopics[topic] - }) - } - } - cb(null, packet) - break - case 'unsuback': - delete this.outgoing[mid] - cb(null) - break - default: - that.emit('error', new Error('unrecognized packet type')) - } - - if (this.disconnecting && - Object.keys(this.outgoing).length === 0) { - this.emit('outgoingEmpty') - } -} - -/** - * _handlePubrel - * - * @param {Object} packet - * @api private - */ -MqttClient.prototype._handlePubrel = function (packet, callback) { - var mid = packet.messageId - var that = this - - var comp = {cmd: 'pubcomp', messageId: mid} - - that.incomingStore.get(packet, function (err, pub) { - if (!err && pub.cmd !== 'pubrel') { - that.emit('message', pub.topic, pub.payload, pub) - that.incomingStore.put(packet) - that.handleMessage(pub, function (err) { - if (err) { - return callback && callback(err) - } - that._sendPacket(comp, callback) - }) - } else { - that._sendPacket(comp, callback) - } - }) -} - -/** - * _nextId - */ -MqttClient.prototype._nextId = function () { - var id = this.nextId++ - // Ensure 16 bit unsigned int: - if (id === 65535) { - this.nextId = 1 - } - return id -} - -/** - * getLastMessageId - */ -MqttClient.prototype.getLastMessageId = function () { - return (this.nextId === 1) ? 65535 : (this.nextId - 1) -} - -module.exports = MqttClient - -}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"./store":6,"./validations":7,"_process":30,"end-of-stream":15,"events":16,"inherits":18,"mqtt-packet":23,"readable-stream":44,"reinterval":45,"xtend":58}],2:[function(require,module,exports){ -'use strict' -var net = require('net') - -/* - variables port and host can be removed since - you have all required information in opts object -*/ -function buildBuilder (client, opts) { - var port, host - opts.port = opts.port || 1883 - opts.hostname = opts.hostname || opts.host || 'localhost' - - port = opts.port - host = opts.hostname - - return net.createConnection(port, host) -} - -module.exports = buildBuilder - -},{"net":11}],3:[function(require,module,exports){ -'use strict' -var tls = require('tls') - -function buildBuilder (mqttClient, opts) { - var connection - opts.port = opts.port || 8883 - opts.host = opts.hostname || opts.host || 'localhost' - - opts.rejectUnauthorized = opts.rejectUnauthorized !== false - - delete opts.path - - connection = tls.connect(opts) - /* eslint no-use-before-define: [2, "nofunc"] */ - connection.on('secureConnect', function () { - if (opts.rejectUnauthorized && !connection.authorized) { - connection.emit('error', new Error('TLS not authorized')) - } else { - connection.removeListener('error', handleTLSerrors) - } - }) - - function handleTLSerrors (err) { - // How can I get verify this error is a tls error? - if (opts.rejectUnauthorized) { - mqttClient.emit('error', err) - } - - // close this connection to match the behaviour of net - // otherwise all we get is an error from the connection - // and close event doesn't fire. This is a work around - // to enable the reconnect code to work the same as with - // net.createConnection - connection.end() - } - - connection.on('error', handleTLSerrors) - return connection -} - -module.exports = buildBuilder - -},{"tls":11}],4:[function(require,module,exports){ -(function (process){ -'use strict' - -var websocket = require('websocket-stream') -var urlModule = require('url') -var WSS_OPTIONS = [ - 'rejectUnauthorized', - 'ca', - 'cert', - 'key', - 'pfx', - 'passphrase' -] -var IS_BROWSER = process.title === 'browser' - -function buildUrl (opts, client) { - var url = opts.protocol + '://' + opts.hostname + ':' + opts.port + opts.path - if (typeof (opts.transformWsUrl) === 'function') { - url = opts.transformWsUrl(url, opts, client) - } - return url -} - -function setDefaultOpts (opts) { - if (!opts.hostname) { - opts.hostname = 'localhost' - } - if (!opts.port) { - if (opts.protocol === 'wss') { - opts.port = 443 - } else { - opts.port = 80 - } - } - if (!opts.path) { - opts.path = '/' - } - - if (!opts.wsOptions) { - opts.wsOptions = {} - } - if (!IS_BROWSER && opts.protocol === 'wss') { - // Add cert/key/ca etc options - WSS_OPTIONS.forEach(function (prop) { - if (opts.hasOwnProperty(prop) && !opts.wsOptions.hasOwnProperty(prop)) { - opts.wsOptions[prop] = opts[prop] - } - }) - } -} - -function createWebSocket (client, opts) { - var websocketSubProtocol = - (opts.protocolId === 'MQIsdp') && (opts.protocolVersion === 3) - ? 'mqttv3.1' - : 'mqtt' - - setDefaultOpts(opts) - var url = buildUrl(opts, client) - return websocket(url, [websocketSubProtocol], opts.wsOptions) -} - -function buildBuilder (client, opts) { - return createWebSocket(client, opts) -} - -function buildBuilderBrowser (client, opts) { - if (!opts.hostname) { - opts.hostname = opts.host - } - - if (!opts.hostname) { - // Throwing an error in a Web Worker if no `hostname` is given, because we - // can not determine the `hostname` automatically. If connecting to - // localhost, please supply the `hostname` as an argument. - if (typeof (document) === 'undefined') { - throw new Error('Could not determine host. Specify host manually.') - } - var parsed = urlModule.parse(document.URL) - opts.hostname = parsed.hostname - - if (!opts.port) { - opts.port = parsed.port - } - } - return createWebSocket(client, opts) -} - -if (IS_BROWSER) { - module.exports = buildBuilderBrowser -} else { - module.exports = buildBuilder -} - -}).call(this,require('_process')) -},{"_process":30,"url":49,"websocket-stream":55}],5:[function(require,module,exports){ -'use strict' - -/* global wx */ -var socketOpen = false -var socketMsgQueue = [] - -function sendSocketMessage (msg) { - if (socketOpen) { - wx.sendSocketMessage({ - data: msg.buffer || msg - }) - } else { - socketMsgQueue.push(msg) - } -} - -function WebSocket (url, protocols) { - var ws = { - OPEN: 1, - CLOSING: 2, - CLOSED: 3, - readyState: socketOpen ? 1 : 0, - send: sendSocketMessage, - close: wx.closeSocket, - onopen: null, - onmessage: null, - onclose: null, - onerror: null - } - - wx.connectSocket({ - url: url, - protocols: protocols - }) - wx.onSocketOpen(function (res) { - ws.readyState = ws.OPEN - socketOpen = true - for (var i = 0; i < socketMsgQueue.length; i++) { - sendSocketMessage(socketMsgQueue[i]) - } - socketMsgQueue = [] - - ws.onopen && ws.onopen.apply(ws, arguments) - }) - wx.onSocketMessage(function (res) { - ws.onmessage && ws.onmessage.apply(ws, arguments) - }) - wx.onSocketClose(function () { - ws.onclose && ws.onclose.apply(ws, arguments) - ws.readyState = ws.CLOSED - socketOpen = false - }) - wx.onSocketError(function () { - ws.onerror && ws.onerror.apply(ws, arguments) - ws.readyState = ws.CLOSED - socketOpen = false - }) - - return ws -} - -var websocket = require('websocket-stream') - -function buildUrl (opts, client) { - var protocol = opts.protocol === 'wxs' ? 'wss' : 'ws' - var url = protocol + '://' + opts.hostname + opts.path - if (opts.port && opts.port !== 80 && opts.port !== 443) { - url = protocol + '://' + opts.hostname + ':' + opts.port + opts.path - } - if (typeof (opts.transformWsUrl) === 'function') { - url = opts.transformWsUrl(url, opts, client) - } - return url -} - -function setDefaultOpts (opts) { - if (!opts.hostname) { - opts.hostname = 'localhost' - } - if (!opts.path) { - opts.path = '/' - } - - if (!opts.wsOptions) { - opts.wsOptions = {} - } -} - -function createWebSocket (client, opts) { - var websocketSubProtocol = - (opts.protocolId === 'MQIsdp') && (opts.protocolVersion === 3) - ? 'mqttv3.1' - : 'mqtt' - - setDefaultOpts(opts) - var url = buildUrl(opts, client) - return websocket(WebSocket(url, [websocketSubProtocol])) -} - -function buildBuilder (client, opts) { - opts.hostname = opts.hostname || opts.host - - if (!opts.hostname) { - throw new Error('Could not determine host. Specify host manually.') - } - - return createWebSocket(client, opts) -} - -module.exports = buildBuilder - -},{"websocket-stream":55}],6:[function(require,module,exports){ -(function (process){ -'use strict' - -/** - * Module dependencies - */ -var xtend = require('xtend') - -var Readable = require('readable-stream').Readable -var streamsOpts = { objectMode: true } -var defaultStoreOptions = { - clean: true -} - -/** - * In-memory implementation of the message store - * This can actually be saved into files. - * - * @param {Object} [options] - store options - */ -function Store (options) { - if (!(this instanceof Store)) { - return new Store(options) - } - - this.options = options || {} - - // Defaults - this.options = xtend(defaultStoreOptions, options) - - this._inflights = {} -} - -/** - * Adds a packet to the store, a packet is - * anything that has a messageId property. - * - */ -Store.prototype.put = function (packet, cb) { - this._inflights[packet.messageId] = packet - - if (cb) { - cb() - } - - return this -} - -/** - * Creates a stream with all the packets in the store - * - */ -Store.prototype.createStream = function () { - var stream = new Readable(streamsOpts) - var inflights = this._inflights - var ids = Object.keys(this._inflights) - var destroyed = false - var i = 0 - - stream._read = function () { - if (!destroyed && i < ids.length) { - this.push(inflights[ids[i++]]) - } else { - this.push(null) - } - } - - stream.destroy = function () { - if (destroyed) { - return - } - - var self = this - - destroyed = true - - process.nextTick(function () { - self.emit('close') - }) - } - - return stream -} - -/** - * deletes a packet from the store. - */ -Store.prototype.del = function (packet, cb) { - packet = this._inflights[packet.messageId] - if (packet) { - delete this._inflights[packet.messageId] - cb(null, packet) - } else if (cb) { - cb(new Error('missing packet')) - } - - return this -} - -/** - * get a packet from the store. - */ -Store.prototype.get = function (packet, cb) { - packet = this._inflights[packet.messageId] - if (packet) { - cb(null, packet) - } else if (cb) { - cb(new Error('missing packet')) - } - - return this -} - -/** - * Close the store - */ -Store.prototype.close = function (cb) { - if (this.options.clean) { - this._inflights = null - } - if (cb) { - cb() - } -} - -module.exports = Store - -}).call(this,require('_process')) -},{"_process":30,"readable-stream":44,"xtend":58}],7:[function(require,module,exports){ -'use strict' - -/** - * Validate a topic to see if it's valid or not. - * A topic is valid if it follow below rules: - * - Rule #1: If any part of the topic is not `+` or `#`, then it must not contain `+` and '#' - * - Rule #2: Part `#` must be located at the end of the mailbox - * - * @param {String} topic - A topic - * @returns {Boolean} If the topic is valid, returns true. Otherwise, returns false. - */ -function validateTopic (topic) { - var parts = topic.split('/') - - for (var i = 0; i < parts.length; i++) { - if (parts[i] === '+') { - continue - } - - if (parts[i] === '#') { - // for Rule #2 - return i === parts.length - 1 - } - - if (parts[i].indexOf('+') !== -1 || parts[i].indexOf('#') !== -1) { - return false - } - } - - return true -} - -/** - * Validate an array of topics to see if any of them is valid or not - * @param {Array} topics - Array of topics - * @returns {String} If the topics is valid, returns null. Otherwise, returns the invalid one - */ -function validateTopics (topics) { - if (topics.length === 0) { - return 'empty_topic_list' - } - for (var i = 0; i < topics.length; i++) { - if (!validateTopic(topics[i])) { - return topics[i] - } - } - return null -} - -module.exports = { - validateTopics: validateTopics -} - -},{}],8:[function(require,module,exports){ -(function (process){ -'use strict' - -var MqttClient = require('../client') -var Store = require('../store') -var url = require('url') -var xtend = require('xtend') -var protocols = {} - -if (process.title !== 'browser') { - protocols.mqtt = require('./tcp') - protocols.tcp = require('./tcp') - protocols.ssl = require('./tls') - protocols.tls = require('./tls') - protocols.mqtts = require('./tls') -} else { - protocols.wx = require('./wx') - protocols.wxs = require('./wx') -} - -protocols.ws = require('./ws') -protocols.wss = require('./ws') - -/** - * Parse the auth attribute and merge username and password in the options object. - * - * @param {Object} [opts] option object - */ -function parseAuthOptions (opts) { - var matches - if (opts.auth) { - matches = opts.auth.match(/^(.+):(.+)$/) - if (matches) { - opts.username = matches[1] - opts.password = matches[2] - } else { - opts.username = opts.auth - } - } -} - -/** - * connect - connect to an MQTT broker. - * - * @param {String} [brokerUrl] - url of the broker, optional - * @param {Object} opts - see MqttClient#constructor - */ -function connect (brokerUrl, opts) { - if ((typeof brokerUrl === 'object') && !opts) { - opts = brokerUrl - brokerUrl = null - } - - opts = opts || {} - - if (brokerUrl) { - var parsed = url.parse(brokerUrl, true) - if (parsed.port != null) { - parsed.port = Number(parsed.port) - } - - opts = xtend(parsed, opts) - - if (opts.protocol === null) { - throw new Error('Missing protocol') - } - opts.protocol = opts.protocol.replace(/:$/, '') - } - - // merge in the auth options if supplied - parseAuthOptions(opts) - - // support clientId passed in the query string of the url - if (opts.query && typeof opts.query.clientId === 'string') { - opts.clientId = opts.query.clientId - } - - if (opts.cert && opts.key) { - if (opts.protocol) { - if (['mqtts', 'wss', 'wxs'].indexOf(opts.protocol) === -1) { - switch (opts.protocol) { - case 'mqtt': - opts.protocol = 'mqtts' - break - case 'ws': - opts.protocol = 'wss' - break - case 'wx': - opts.protocol = 'wxs' - break - default: - throw new Error('Unknown protocol for secure connection: "' + opts.protocol + '"!') - } - } - } else { - // don't know what protocol he want to use, mqtts or wss - throw new Error('Missing secure protocol key') - } - } - - if (!protocols[opts.protocol]) { - var isSecure = ['mqtts', 'wss'].indexOf(opts.protocol) !== -1 - opts.protocol = [ - 'mqtt', - 'mqtts', - 'ws', - 'wss', - 'wx', - 'wxs' - ].filter(function (key, index) { - if (isSecure && index % 2 === 0) { - // Skip insecure protocols when requesting a secure one. - return false - } - return (typeof protocols[key] === 'function') - })[0] - } - - if (opts.clean === false && !opts.clientId) { - throw new Error('Missing clientId for unclean clients') - } - - function wrapper (client) { - if (opts.servers) { - if (!client._reconnectCount || client._reconnectCount === opts.servers.length) { - client._reconnectCount = 0 - } - - opts.host = opts.servers[client._reconnectCount].host - opts.port = opts.servers[client._reconnectCount].port - opts.hostname = opts.host - - client._reconnectCount++ - } - - return protocols[opts.protocol](client, opts) - } - - return new MqttClient(wrapper, opts) -} - -module.exports = connect -module.exports.connect = connect -module.exports.MqttClient = MqttClient -module.exports.Store = Store - -}).call(this,require('_process')) -},{"../client":1,"../store":6,"./tcp":2,"./tls":3,"./ws":4,"./wx":5,"_process":30,"url":49,"xtend":58}],9:[function(require,module,exports){ -'use strict' - -exports.byteLength = byteLength -exports.toByteArray = toByteArray -exports.fromByteArray = fromByteArray - -var lookup = [] -var revLookup = [] -var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array - -var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' -for (var i = 0, len = code.length; i < len; ++i) { - lookup[i] = code[i] - revLookup[code.charCodeAt(i)] = i -} - -// Support decoding URL-safe base64 strings, as Node.js does. -// See: https://en.wikipedia.org/wiki/Base64#URL_applications -revLookup['-'.charCodeAt(0)] = 62 -revLookup['_'.charCodeAt(0)] = 63 - -function getLens (b64) { - var len = b64.length - - if (len % 4 > 0) { - throw new Error('Invalid string. Length must be a multiple of 4') - } - - // Trim off extra bytes after placeholder bytes are found - // See: https://github.com/beatgammit/base64-js/issues/42 - var validLen = b64.indexOf('=') - if (validLen === -1) validLen = len - - var placeHoldersLen = validLen === len - ? 0 - : 4 - (validLen % 4) - - return [validLen, placeHoldersLen] -} - -// base64 is 4/3 + up to two characters of the original data -function byteLength (b64) { - var lens = getLens(b64) - var validLen = lens[0] - var placeHoldersLen = lens[1] - return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen -} - -function _byteLength (b64, validLen, placeHoldersLen) { - return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen -} - -function toByteArray (b64) { - var tmp - var lens = getLens(b64) - var validLen = lens[0] - var placeHoldersLen = lens[1] - - var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen)) - - var curByte = 0 - - // if there are placeholders, only get up to the last complete 4 chars - var len = placeHoldersLen > 0 - ? validLen - 4 - : validLen - - for (var i = 0; i < len; i += 4) { - tmp = - (revLookup[b64.charCodeAt(i)] << 18) | - (revLookup[b64.charCodeAt(i + 1)] << 12) | - (revLookup[b64.charCodeAt(i + 2)] << 6) | - revLookup[b64.charCodeAt(i + 3)] - arr[curByte++] = (tmp >> 16) & 0xFF - arr[curByte++] = (tmp >> 8) & 0xFF - arr[curByte++] = tmp & 0xFF - } - - if (placeHoldersLen === 2) { - tmp = - (revLookup[b64.charCodeAt(i)] << 2) | - (revLookup[b64.charCodeAt(i + 1)] >> 4) - arr[curByte++] = tmp & 0xFF - } - - if (placeHoldersLen === 1) { - tmp = - (revLookup[b64.charCodeAt(i)] << 10) | - (revLookup[b64.charCodeAt(i + 1)] << 4) | - (revLookup[b64.charCodeAt(i + 2)] >> 2) - arr[curByte++] = (tmp >> 8) & 0xFF - arr[curByte++] = tmp & 0xFF - } - - return arr -} - -function tripletToBase64 (num) { - return lookup[num >> 18 & 0x3F] + - lookup[num >> 12 & 0x3F] + - lookup[num >> 6 & 0x3F] + - lookup[num & 0x3F] -} - -function encodeChunk (uint8, start, end) { - var tmp - var output = [] - for (var i = start; i < end; i += 3) { - tmp = - ((uint8[i] << 16) & 0xFF0000) + - ((uint8[i + 1] << 8) & 0xFF00) + - (uint8[i + 2] & 0xFF) - output.push(tripletToBase64(tmp)) - } - return output.join('') -} - -function fromByteArray (uint8) { - var tmp - var len = uint8.length - var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes - var parts = [] - var maxChunkLength = 16383 // must be multiple of 3 - - // go through the array every three bytes, we'll deal with trailing stuff later - for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) { - parts.push(encodeChunk( - uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength) - )) - } - - // pad the end with zeros, but make sure to not forget the extra bytes - if (extraBytes === 1) { - tmp = uint8[len - 1] - parts.push( - lookup[tmp >> 2] + - lookup[(tmp << 4) & 0x3F] + - '==' - ) - } else if (extraBytes === 2) { - tmp = (uint8[len - 2] << 8) + uint8[len - 1] - parts.push( - lookup[tmp >> 10] + - lookup[(tmp >> 4) & 0x3F] + - lookup[(tmp << 2) & 0x3F] + - '=' - ) - } - - return parts.join('') -} - -},{}],10:[function(require,module,exports){ -var DuplexStream = require('readable-stream/duplex') - , util = require('util') - , Buffer = require('safe-buffer').Buffer - - -function BufferList (callback) { - if (!(this instanceof BufferList)) - return new BufferList(callback) - - this._bufs = [] - this.length = 0 - - if (typeof callback == 'function') { - this._callback = callback - - var piper = function piper (err) { - if (this._callback) { - this._callback(err) - this._callback = null - } - }.bind(this) - - this.on('pipe', function onPipe (src) { - src.on('error', piper) - }) - this.on('unpipe', function onUnpipe (src) { - src.removeListener('error', piper) - }) - } else { - this.append(callback) - } - - DuplexStream.call(this) -} - - -util.inherits(BufferList, DuplexStream) - - -BufferList.prototype._offset = function _offset (offset) { - var tot = 0, i = 0, _t - if (offset === 0) return [ 0, 0 ] - for (; i < this._bufs.length; i++) { - _t = tot + this._bufs[i].length - if (offset < _t || i == this._bufs.length - 1) - return [ i, offset - tot ] - tot = _t - } -} - - -BufferList.prototype.append = function append (buf) { - var i = 0 - - if (Buffer.isBuffer(buf)) { - this._appendBuffer(buf); - } else if (Array.isArray(buf)) { - for (; i < buf.length; i++) - this.append(buf[i]) - } else if (buf instanceof BufferList) { - // unwrap argument into individual BufferLists - for (; i < buf._bufs.length; i++) - this.append(buf._bufs[i]) - } else if (buf != null) { - // coerce number arguments to strings, since Buffer(number) does - // uninitialized memory allocation - if (typeof buf == 'number') - buf = buf.toString() - - this._appendBuffer(Buffer.from(buf)); - } - - return this -} - - -BufferList.prototype._appendBuffer = function appendBuffer (buf) { - this._bufs.push(buf) - this.length += buf.length -} - - -BufferList.prototype._write = function _write (buf, encoding, callback) { - this._appendBuffer(buf) - - if (typeof callback == 'function') - callback() -} - - -BufferList.prototype._read = function _read (size) { - if (!this.length) - return this.push(null) - - size = Math.min(size, this.length) - this.push(this.slice(0, size)) - this.consume(size) -} - - -BufferList.prototype.end = function end (chunk) { - DuplexStream.prototype.end.call(this, chunk) - - if (this._callback) { - this._callback(null, this.slice()) - this._callback = null - } -} - - -BufferList.prototype.get = function get (index) { - return this.slice(index, index + 1)[0] -} - - -BufferList.prototype.slice = function slice (start, end) { - if (typeof start == 'number' && start < 0) - start += this.length - if (typeof end == 'number' && end < 0) - end += this.length - return this.copy(null, 0, start, end) -} - - -BufferList.prototype.copy = function copy (dst, dstStart, srcStart, srcEnd) { - if (typeof srcStart != 'number' || srcStart < 0) - srcStart = 0 - if (typeof srcEnd != 'number' || srcEnd > this.length) - srcEnd = this.length - if (srcStart >= this.length) - return dst || Buffer.alloc(0) - if (srcEnd <= 0) - return dst || Buffer.alloc(0) - - var copy = !!dst - , off = this._offset(srcStart) - , len = srcEnd - srcStart - , bytes = len - , bufoff = (copy && dstStart) || 0 - , start = off[1] - , l - , i - - // copy/slice everything - if (srcStart === 0 && srcEnd == this.length) { - if (!copy) { // slice, but full concat if multiple buffers - return this._bufs.length === 1 - ? this._bufs[0] - : Buffer.concat(this._bufs, this.length) - } - - // copy, need to copy individual buffers - for (i = 0; i < this._bufs.length; i++) { - this._bufs[i].copy(dst, bufoff) - bufoff += this._bufs[i].length - } - - return dst - } - - // easy, cheap case where it's a subset of one of the buffers - if (bytes <= this._bufs[off[0]].length - start) { - return copy - ? this._bufs[off[0]].copy(dst, dstStart, start, start + bytes) - : this._bufs[off[0]].slice(start, start + bytes) - } - - if (!copy) // a slice, we need something to copy in to - dst = Buffer.allocUnsafe(len) - - for (i = off[0]; i < this._bufs.length; i++) { - l = this._bufs[i].length - start - - if (bytes > l) { - this._bufs[i].copy(dst, bufoff, start) - } else { - this._bufs[i].copy(dst, bufoff, start, start + bytes) - break - } - - bufoff += l - bytes -= l - - if (start) - start = 0 - } - - return dst -} - -BufferList.prototype.shallowSlice = function shallowSlice (start, end) { - start = start || 0 - end = end || this.length - - if (start < 0) - start += this.length - if (end < 0) - end += this.length - - var startOffset = this._offset(start) - , endOffset = this._offset(end) - , buffers = this._bufs.slice(startOffset[0], endOffset[0] + 1) - - if (endOffset[1] == 0) - buffers.pop() - else - buffers[buffers.length-1] = buffers[buffers.length-1].slice(0, endOffset[1]) - - if (startOffset[1] != 0) - buffers[0] = buffers[0].slice(startOffset[1]) - - return new BufferList(buffers) -} - -BufferList.prototype.toString = function toString (encoding, start, end) { - return this.slice(start, end).toString(encoding) -} - -BufferList.prototype.consume = function consume (bytes) { - while (this._bufs.length) { - if (bytes >= this._bufs[0].length) { - bytes -= this._bufs[0].length - this.length -= this._bufs[0].length - this._bufs.shift() - } else { - this._bufs[0] = this._bufs[0].slice(bytes) - this.length -= bytes - break - } - } - return this -} - - -BufferList.prototype.duplicate = function duplicate () { - var i = 0 - , copy = new BufferList() - - for (; i < this._bufs.length; i++) - copy.append(this._bufs[i]) - - return copy -} - - -BufferList.prototype.destroy = function destroy () { - this._bufs.length = 0 - this.length = 0 - this.push(null) -} - - -;(function () { - var methods = { - 'readDoubleBE' : 8 - , 'readDoubleLE' : 8 - , 'readFloatBE' : 4 - , 'readFloatLE' : 4 - , 'readInt32BE' : 4 - , 'readInt32LE' : 4 - , 'readUInt32BE' : 4 - , 'readUInt32LE' : 4 - , 'readInt16BE' : 2 - , 'readInt16LE' : 2 - , 'readUInt16BE' : 2 - , 'readUInt16LE' : 2 - , 'readInt8' : 1 - , 'readUInt8' : 1 - } - - for (var m in methods) { - (function (m) { - BufferList.prototype[m] = function (offset) { - return this.slice(offset, offset + methods[m])[m](0) - } - }(m)) - } -}()) - - -module.exports = BufferList - -},{"readable-stream/duplex":35,"safe-buffer":46,"util":54}],11:[function(require,module,exports){ - -},{}],12:[function(require,module,exports){ -/*! - * The buffer module from node.js, for the browser. - * - * @author Feross Aboukhadijeh - * @license MIT - */ -/* eslint-disable no-proto */ - -'use strict' - -var base64 = require('base64-js') -var ieee754 = require('ieee754') - -exports.Buffer = Buffer -exports.SlowBuffer = SlowBuffer -exports.INSPECT_MAX_BYTES = 50 - -var K_MAX_LENGTH = 0x7fffffff -exports.kMaxLength = K_MAX_LENGTH - -/** - * If `Buffer.TYPED_ARRAY_SUPPORT`: - * === true Use Uint8Array implementation (fastest) - * === false Print warning and recommend using `buffer` v4.x which has an Object - * implementation (most compatible, even IE6) - * - * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, - * Opera 11.6+, iOS 4.2+. - * - * We report that the browser does not support typed arrays if the are not subclassable - * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array` - * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support - * for __proto__ and has a buggy typed array implementation. - */ -Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport() - -if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' && - typeof console.error === 'function') { - console.error( - 'This browser lacks typed array (Uint8Array) support which is required by ' + - '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.' - ) -} - -function typedArraySupport () { - // Can typed array instances can be augmented? - try { - var arr = new Uint8Array(1) - arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }} - return arr.foo() === 42 - } catch (e) { - return false - } -} - -Object.defineProperty(Buffer.prototype, 'parent', { - get: function () { - if (!(this instanceof Buffer)) { - return undefined - } - return this.buffer - } -}) - -Object.defineProperty(Buffer.prototype, 'offset', { - get: function () { - if (!(this instanceof Buffer)) { - return undefined - } - return this.byteOffset - } -}) - -function createBuffer (length) { - if (length > K_MAX_LENGTH) { - throw new RangeError('Invalid typed array length') - } - // Return an augmented `Uint8Array` instance - var buf = new Uint8Array(length) - buf.__proto__ = Buffer.prototype - return buf -} - -/** - * The Buffer constructor returns instances of `Uint8Array` that have their - * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of - * `Uint8Array`, so the returned instances will have all the node `Buffer` methods - * and the `Uint8Array` methods. Square bracket notation works as expected -- it - * returns a single octet. - * - * The `Uint8Array` prototype remains unmodified. - */ - -function Buffer (arg, encodingOrOffset, length) { - // Common case. - if (typeof arg === 'number') { - if (typeof encodingOrOffset === 'string') { - throw new Error( - 'If encoding is specified then the first argument must be a string' - ) - } - return allocUnsafe(arg) - } - return from(arg, encodingOrOffset, length) -} - -// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97 -if (typeof Symbol !== 'undefined' && Symbol.species && - Buffer[Symbol.species] === Buffer) { - Object.defineProperty(Buffer, Symbol.species, { - value: null, - configurable: true, - enumerable: false, - writable: false - }) -} - -Buffer.poolSize = 8192 // not used by this implementation - -function from (value, encodingOrOffset, length) { - if (typeof value === 'number') { - throw new TypeError('"value" argument must not be a number') - } - - if (isArrayBuffer(value) || (value && isArrayBuffer(value.buffer))) { - return fromArrayBuffer(value, encodingOrOffset, length) - } - - if (typeof value === 'string') { - return fromString(value, encodingOrOffset) - } - - return fromObject(value) -} - -/** - * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError - * if value is a number. - * Buffer.from(str[, encoding]) - * Buffer.from(array) - * Buffer.from(buffer) - * Buffer.from(arrayBuffer[, byteOffset[, length]]) - **/ -Buffer.from = function (value, encodingOrOffset, length) { - return from(value, encodingOrOffset, length) -} - -// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug: -// https://github.com/feross/buffer/pull/148 -Buffer.prototype.__proto__ = Uint8Array.prototype -Buffer.__proto__ = Uint8Array - -function assertSize (size) { - if (typeof size !== 'number') { - throw new TypeError('"size" argument must be of type number') - } else if (size < 0) { - throw new RangeError('"size" argument must not be negative') - } -} - -function alloc (size, fill, encoding) { - assertSize(size) - if (size <= 0) { - return createBuffer(size) - } - if (fill !== undefined) { - // Only pay attention to encoding if it's a string. This - // prevents accidentally sending in a number that would - // be interpretted as a start offset. - return typeof encoding === 'string' - ? createBuffer(size).fill(fill, encoding) - : createBuffer(size).fill(fill) - } - return createBuffer(size) -} - -/** - * Creates a new filled Buffer instance. - * alloc(size[, fill[, encoding]]) - **/ -Buffer.alloc = function (size, fill, encoding) { - return alloc(size, fill, encoding) -} - -function allocUnsafe (size) { - assertSize(size) - return createBuffer(size < 0 ? 0 : checked(size) | 0) -} - -/** - * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance. - * */ -Buffer.allocUnsafe = function (size) { - return allocUnsafe(size) -} -/** - * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance. - */ -Buffer.allocUnsafeSlow = function (size) { - return allocUnsafe(size) -} - -function fromString (string, encoding) { - if (typeof encoding !== 'string' || encoding === '') { - encoding = 'utf8' - } - - if (!Buffer.isEncoding(encoding)) { - throw new TypeError('Unknown encoding: ' + encoding) - } - - var length = byteLength(string, encoding) | 0 - var buf = createBuffer(length) - - var actual = buf.write(string, encoding) - - if (actual !== length) { - // Writing a hex string, for example, that contains invalid characters will - // cause everything after the first invalid character to be ignored. (e.g. - // 'abxxcd' will be treated as 'ab') - buf = buf.slice(0, actual) - } - - return buf -} - -function fromArrayLike (array) { - var length = array.length < 0 ? 0 : checked(array.length) | 0 - var buf = createBuffer(length) - for (var i = 0; i < length; i += 1) { - buf[i] = array[i] & 255 - } - return buf -} - -function fromArrayBuffer (array, byteOffset, length) { - if (byteOffset < 0 || array.byteLength < byteOffset) { - throw new RangeError('"offset" is outside of buffer bounds') - } - - if (array.byteLength < byteOffset + (length || 0)) { - throw new RangeError('"length" is outside of buffer bounds') - } - - var buf - if (byteOffset === undefined && length === undefined) { - buf = new Uint8Array(array) - } else if (length === undefined) { - buf = new Uint8Array(array, byteOffset) - } else { - buf = new Uint8Array(array, byteOffset, length) - } - - // Return an augmented `Uint8Array` instance - buf.__proto__ = Buffer.prototype - return buf -} - -function fromObject (obj) { - if (Buffer.isBuffer(obj)) { - var len = checked(obj.length) | 0 - var buf = createBuffer(len) - - if (buf.length === 0) { - return buf - } - - obj.copy(buf, 0, 0, len) - return buf - } - - if (obj) { - if (ArrayBuffer.isView(obj) || 'length' in obj) { - if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) { - return createBuffer(0) - } - return fromArrayLike(obj) - } - - if (obj.type === 'Buffer' && Array.isArray(obj.data)) { - return fromArrayLike(obj.data) - } - } - - throw new TypeError('The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object.') -} - -function checked (length) { - // Note: cannot use `length < K_MAX_LENGTH` here because that fails when - // length is NaN (which is otherwise coerced to zero.) - if (length >= K_MAX_LENGTH) { - throw new RangeError('Attempt to allocate Buffer larger than maximum ' + - 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes') - } - return length | 0 -} - -function SlowBuffer (length) { - if (+length != length) { // eslint-disable-line eqeqeq - length = 0 - } - return Buffer.alloc(+length) -} - -Buffer.isBuffer = function isBuffer (b) { - return b != null && b._isBuffer === true -} - -Buffer.compare = function compare (a, b) { - if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) { - throw new TypeError('Arguments must be Buffers') - } - - if (a === b) return 0 - - var x = a.length - var y = b.length - - for (var i = 0, len = Math.min(x, y); i < len; ++i) { - if (a[i] !== b[i]) { - x = a[i] - y = b[i] - break - } - } - - if (x < y) return -1 - if (y < x) return 1 - return 0 -} - -Buffer.isEncoding = function isEncoding (encoding) { - switch (String(encoding).toLowerCase()) { - case 'hex': - case 'utf8': - case 'utf-8': - case 'ascii': - case 'latin1': - case 'binary': - case 'base64': - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return true - default: - return false - } -} - -Buffer.concat = function concat (list, length) { - if (!Array.isArray(list)) { - throw new TypeError('"list" argument must be an Array of Buffers') - } - - if (list.length === 0) { - return Buffer.alloc(0) - } - - var i - if (length === undefined) { - length = 0 - for (i = 0; i < list.length; ++i) { - length += list[i].length - } - } - - var buffer = Buffer.allocUnsafe(length) - var pos = 0 - for (i = 0; i < list.length; ++i) { - var buf = list[i] - if (ArrayBuffer.isView(buf)) { - buf = Buffer.from(buf) - } - if (!Buffer.isBuffer(buf)) { - throw new TypeError('"list" argument must be an Array of Buffers') - } - buf.copy(buffer, pos) - pos += buf.length - } - return buffer -} - -function byteLength (string, encoding) { - if (Buffer.isBuffer(string)) { - return string.length - } - if (ArrayBuffer.isView(string) || isArrayBuffer(string)) { - return string.byteLength - } - if (typeof string !== 'string') { - string = '' + string - } - - var len = string.length - if (len === 0) return 0 - - // Use a for loop to avoid recursion - var loweredCase = false - for (;;) { - switch (encoding) { - case 'ascii': - case 'latin1': - case 'binary': - return len - case 'utf8': - case 'utf-8': - case undefined: - return utf8ToBytes(string).length - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return len * 2 - case 'hex': - return len >>> 1 - case 'base64': - return base64ToBytes(string).length - default: - if (loweredCase) return utf8ToBytes(string).length // assume utf8 - encoding = ('' + encoding).toLowerCase() - loweredCase = true - } - } -} -Buffer.byteLength = byteLength - -function slowToString (encoding, start, end) { - var loweredCase = false - - // No need to verify that "this.length <= MAX_UINT32" since it's a read-only - // property of a typed array. - - // This behaves neither like String nor Uint8Array in that we set start/end - // to their upper/lower bounds if the value passed is out of range. - // undefined is handled specially as per ECMA-262 6th Edition, - // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization. - if (start === undefined || start < 0) { - start = 0 - } - // Return early if start > this.length. Done here to prevent potential uint32 - // coercion fail below. - if (start > this.length) { - return '' - } - - if (end === undefined || end > this.length) { - end = this.length - } - - if (end <= 0) { - return '' - } - - // Force coersion to uint32. This will also coerce falsey/NaN values to 0. - end >>>= 0 - start >>>= 0 - - if (end <= start) { - return '' - } - - if (!encoding) encoding = 'utf8' - - while (true) { - switch (encoding) { - case 'hex': - return hexSlice(this, start, end) - - case 'utf8': - case 'utf-8': - return utf8Slice(this, start, end) - - case 'ascii': - return asciiSlice(this, start, end) - - case 'latin1': - case 'binary': - return latin1Slice(this, start, end) - - case 'base64': - return base64Slice(this, start, end) - - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return utf16leSlice(this, start, end) - - default: - if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) - encoding = (encoding + '').toLowerCase() - loweredCase = true - } - } -} - -// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package) -// to detect a Buffer instance. It's not possible to use `instanceof Buffer` -// reliably in a browserify context because there could be multiple different -// copies of the 'buffer' package in use. This method works even for Buffer -// instances that were created from another copy of the `buffer` package. -// See: https://github.com/feross/buffer/issues/154 -Buffer.prototype._isBuffer = true - -function swap (b, n, m) { - var i = b[n] - b[n] = b[m] - b[m] = i -} - -Buffer.prototype.swap16 = function swap16 () { - var len = this.length - if (len % 2 !== 0) { - throw new RangeError('Buffer size must be a multiple of 16-bits') - } - for (var i = 0; i < len; i += 2) { - swap(this, i, i + 1) - } - return this -} - -Buffer.prototype.swap32 = function swap32 () { - var len = this.length - if (len % 4 !== 0) { - throw new RangeError('Buffer size must be a multiple of 32-bits') - } - for (var i = 0; i < len; i += 4) { - swap(this, i, i + 3) - swap(this, i + 1, i + 2) - } - return this -} - -Buffer.prototype.swap64 = function swap64 () { - var len = this.length - if (len % 8 !== 0) { - throw new RangeError('Buffer size must be a multiple of 64-bits') - } - for (var i = 0; i < len; i += 8) { - swap(this, i, i + 7) - swap(this, i + 1, i + 6) - swap(this, i + 2, i + 5) - swap(this, i + 3, i + 4) - } - return this -} - -Buffer.prototype.toString = function toString () { - var length = this.length - if (length === 0) return '' - if (arguments.length === 0) return utf8Slice(this, 0, length) - return slowToString.apply(this, arguments) -} - -Buffer.prototype.toLocaleString = Buffer.prototype.toString - -Buffer.prototype.equals = function equals (b) { - if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') - if (this === b) return true - return Buffer.compare(this, b) === 0 -} - -Buffer.prototype.inspect = function inspect () { - var str = '' - var max = exports.INSPECT_MAX_BYTES - if (this.length > 0) { - str = this.toString('hex', 0, max).match(/.{2}/g).join(' ') - if (this.length > max) str += ' ... ' - } - return '' -} - -Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) { - if (!Buffer.isBuffer(target)) { - throw new TypeError('Argument must be a Buffer') - } - - if (start === undefined) { - start = 0 - } - if (end === undefined) { - end = target ? target.length : 0 - } - if (thisStart === undefined) { - thisStart = 0 - } - if (thisEnd === undefined) { - thisEnd = this.length - } - - if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) { - throw new RangeError('out of range index') - } - - if (thisStart >= thisEnd && start >= end) { - return 0 - } - if (thisStart >= thisEnd) { - return -1 - } - if (start >= end) { - return 1 - } - - start >>>= 0 - end >>>= 0 - thisStart >>>= 0 - thisEnd >>>= 0 - - if (this === target) return 0 - - var x = thisEnd - thisStart - var y = end - start - var len = Math.min(x, y) - - var thisCopy = this.slice(thisStart, thisEnd) - var targetCopy = target.slice(start, end) - - for (var i = 0; i < len; ++i) { - if (thisCopy[i] !== targetCopy[i]) { - x = thisCopy[i] - y = targetCopy[i] - break - } - } - - if (x < y) return -1 - if (y < x) return 1 - return 0 -} - -// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`, -// OR the last index of `val` in `buffer` at offset <= `byteOffset`. -// -// Arguments: -// - buffer - a Buffer to search -// - val - a string, Buffer, or number -// - byteOffset - an index into `buffer`; will be clamped to an int32 -// - encoding - an optional encoding, relevant is val is a string -// - dir - true for indexOf, false for lastIndexOf -function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) { - // Empty buffer means no match - if (buffer.length === 0) return -1 - - // Normalize byteOffset - if (typeof byteOffset === 'string') { - encoding = byteOffset - byteOffset = 0 - } else if (byteOffset > 0x7fffffff) { - byteOffset = 0x7fffffff - } else if (byteOffset < -0x80000000) { - byteOffset = -0x80000000 - } - byteOffset = +byteOffset // Coerce to Number. - if (numberIsNaN(byteOffset)) { - // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer - byteOffset = dir ? 0 : (buffer.length - 1) - } - - // Normalize byteOffset: negative offsets start from the end of the buffer - if (byteOffset < 0) byteOffset = buffer.length + byteOffset - if (byteOffset >= buffer.length) { - if (dir) return -1 - else byteOffset = buffer.length - 1 - } else if (byteOffset < 0) { - if (dir) byteOffset = 0 - else return -1 - } - - // Normalize val - if (typeof val === 'string') { - val = Buffer.from(val, encoding) - } - - // Finally, search either indexOf (if dir is true) or lastIndexOf - if (Buffer.isBuffer(val)) { - // Special case: looking for empty string/buffer always fails - if (val.length === 0) { - return -1 - } - return arrayIndexOf(buffer, val, byteOffset, encoding, dir) - } else if (typeof val === 'number') { - val = val & 0xFF // Search for a byte value [0-255] - if (typeof Uint8Array.prototype.indexOf === 'function') { - if (dir) { - return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset) - } else { - return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset) - } - } - return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir) - } - - throw new TypeError('val must be string, number or Buffer') -} - -function arrayIndexOf (arr, val, byteOffset, encoding, dir) { - var indexSize = 1 - var arrLength = arr.length - var valLength = val.length - - if (encoding !== undefined) { - encoding = String(encoding).toLowerCase() - if (encoding === 'ucs2' || encoding === 'ucs-2' || - encoding === 'utf16le' || encoding === 'utf-16le') { - if (arr.length < 2 || val.length < 2) { - return -1 - } - indexSize = 2 - arrLength /= 2 - valLength /= 2 - byteOffset /= 2 - } - } - - function read (buf, i) { - if (indexSize === 1) { - return buf[i] - } else { - return buf.readUInt16BE(i * indexSize) - } - } - - var i - if (dir) { - var foundIndex = -1 - for (i = byteOffset; i < arrLength; i++) { - if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) { - if (foundIndex === -1) foundIndex = i - if (i - foundIndex + 1 === valLength) return foundIndex * indexSize - } else { - if (foundIndex !== -1) i -= i - foundIndex - foundIndex = -1 - } - } - } else { - if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength - for (i = byteOffset; i >= 0; i--) { - var found = true - for (var j = 0; j < valLength; j++) { - if (read(arr, i + j) !== read(val, j)) { - found = false - break - } - } - if (found) return i - } - } - - return -1 -} - -Buffer.prototype.includes = function includes (val, byteOffset, encoding) { - return this.indexOf(val, byteOffset, encoding) !== -1 -} - -Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) { - return bidirectionalIndexOf(this, val, byteOffset, encoding, true) -} - -Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) { - return bidirectionalIndexOf(this, val, byteOffset, encoding, false) -} - -function hexWrite (buf, string, offset, length) { - offset = Number(offset) || 0 - var remaining = buf.length - offset - if (!length) { - length = remaining - } else { - length = Number(length) - if (length > remaining) { - length = remaining - } - } - - var strLen = string.length - - if (length > strLen / 2) { - length = strLen / 2 - } - for (var i = 0; i < length; ++i) { - var parsed = parseInt(string.substr(i * 2, 2), 16) - if (numberIsNaN(parsed)) return i - buf[offset + i] = parsed - } - return i -} - -function utf8Write (buf, string, offset, length) { - return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length) -} - -function asciiWrite (buf, string, offset, length) { - return blitBuffer(asciiToBytes(string), buf, offset, length) -} - -function latin1Write (buf, string, offset, length) { - return asciiWrite(buf, string, offset, length) -} - -function base64Write (buf, string, offset, length) { - return blitBuffer(base64ToBytes(string), buf, offset, length) -} - -function ucs2Write (buf, string, offset, length) { - return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length) -} - -Buffer.prototype.write = function write (string, offset, length, encoding) { - // Buffer#write(string) - if (offset === undefined) { - encoding = 'utf8' - length = this.length - offset = 0 - // Buffer#write(string, encoding) - } else if (length === undefined && typeof offset === 'string') { - encoding = offset - length = this.length - offset = 0 - // Buffer#write(string, offset[, length][, encoding]) - } else if (isFinite(offset)) { - offset = offset >>> 0 - if (isFinite(length)) { - length = length >>> 0 - if (encoding === undefined) encoding = 'utf8' - } else { - encoding = length - length = undefined - } - } else { - throw new Error( - 'Buffer.write(string, encoding, offset[, length]) is no longer supported' - ) - } - - var remaining = this.length - offset - if (length === undefined || length > remaining) length = remaining - - if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) { - throw new RangeError('Attempt to write outside buffer bounds') - } - - if (!encoding) encoding = 'utf8' - - var loweredCase = false - for (;;) { - switch (encoding) { - case 'hex': - return hexWrite(this, string, offset, length) - - case 'utf8': - case 'utf-8': - return utf8Write(this, string, offset, length) - - case 'ascii': - return asciiWrite(this, string, offset, length) - - case 'latin1': - case 'binary': - return latin1Write(this, string, offset, length) - - case 'base64': - // Warning: maxLength not taken into account in base64Write - return base64Write(this, string, offset, length) - - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return ucs2Write(this, string, offset, length) - - default: - if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) - encoding = ('' + encoding).toLowerCase() - loweredCase = true - } - } -} - -Buffer.prototype.toJSON = function toJSON () { - return { - type: 'Buffer', - data: Array.prototype.slice.call(this._arr || this, 0) - } -} - -function base64Slice (buf, start, end) { - if (start === 0 && end === buf.length) { - return base64.fromByteArray(buf) - } else { - return base64.fromByteArray(buf.slice(start, end)) - } -} - -function utf8Slice (buf, start, end) { - end = Math.min(buf.length, end) - var res = [] - - var i = start - while (i < end) { - var firstByte = buf[i] - var codePoint = null - var bytesPerSequence = (firstByte > 0xEF) ? 4 - : (firstByte > 0xDF) ? 3 - : (firstByte > 0xBF) ? 2 - : 1 - - if (i + bytesPerSequence <= end) { - var secondByte, thirdByte, fourthByte, tempCodePoint - - switch (bytesPerSequence) { - case 1: - if (firstByte < 0x80) { - codePoint = firstByte - } - break - case 2: - secondByte = buf[i + 1] - if ((secondByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F) - if (tempCodePoint > 0x7F) { - codePoint = tempCodePoint - } - } - break - case 3: - secondByte = buf[i + 1] - thirdByte = buf[i + 2] - if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F) - if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) { - codePoint = tempCodePoint - } - } - break - case 4: - secondByte = buf[i + 1] - thirdByte = buf[i + 2] - fourthByte = buf[i + 3] - if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F) - if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) { - codePoint = tempCodePoint - } - } - } - } - - if (codePoint === null) { - // we did not generate a valid codePoint so insert a - // replacement char (U+FFFD) and advance only 1 byte - codePoint = 0xFFFD - bytesPerSequence = 1 - } else if (codePoint > 0xFFFF) { - // encode to utf16 (surrogate pair dance) - codePoint -= 0x10000 - res.push(codePoint >>> 10 & 0x3FF | 0xD800) - codePoint = 0xDC00 | codePoint & 0x3FF - } - - res.push(codePoint) - i += bytesPerSequence - } - - return decodeCodePointsArray(res) -} - -// Based on http://stackoverflow.com/a/22747272/680742, the browser with -// the lowest limit is Chrome, with 0x10000 args. -// We go 1 magnitude less, for safety -var MAX_ARGUMENTS_LENGTH = 0x1000 - -function decodeCodePointsArray (codePoints) { - var len = codePoints.length - if (len <= MAX_ARGUMENTS_LENGTH) { - return String.fromCharCode.apply(String, codePoints) // avoid extra slice() - } - - // Decode in chunks to avoid "call stack size exceeded". - var res = '' - var i = 0 - while (i < len) { - res += String.fromCharCode.apply( - String, - codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH) - ) - } - return res -} - -function asciiSlice (buf, start, end) { - var ret = '' - end = Math.min(buf.length, end) - - for (var i = start; i < end; ++i) { - ret += String.fromCharCode(buf[i] & 0x7F) - } - return ret -} - -function latin1Slice (buf, start, end) { - var ret = '' - end = Math.min(buf.length, end) - - for (var i = start; i < end; ++i) { - ret += String.fromCharCode(buf[i]) - } - return ret -} - -function hexSlice (buf, start, end) { - var len = buf.length - - if (!start || start < 0) start = 0 - if (!end || end < 0 || end > len) end = len - - var out = '' - for (var i = start; i < end; ++i) { - out += toHex(buf[i]) - } - return out -} - -function utf16leSlice (buf, start, end) { - var bytes = buf.slice(start, end) - var res = '' - for (var i = 0; i < bytes.length; i += 2) { - res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256)) - } - return res -} - -Buffer.prototype.slice = function slice (start, end) { - var len = this.length - start = ~~start - end = end === undefined ? len : ~~end - - if (start < 0) { - start += len - if (start < 0) start = 0 - } else if (start > len) { - start = len - } - - if (end < 0) { - end += len - if (end < 0) end = 0 - } else if (end > len) { - end = len - } - - if (end < start) end = start - - var newBuf = this.subarray(start, end) - // Return an augmented `Uint8Array` instance - newBuf.__proto__ = Buffer.prototype - return newBuf -} - -/* - * Need to make sure that buffer isn't trying to write out of bounds. - */ -function checkOffset (offset, ext, length) { - if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint') - if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length') -} - -Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) { - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var val = this[offset] - var mul = 1 - var i = 0 - while (++i < byteLength && (mul *= 0x100)) { - val += this[offset + i] * mul - } - - return val -} - -Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) { - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) { - checkOffset(offset, byteLength, this.length) - } - - var val = this[offset + --byteLength] - var mul = 1 - while (byteLength > 0 && (mul *= 0x100)) { - val += this[offset + --byteLength] * mul - } - - return val -} - -Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 1, this.length) - return this[offset] -} - -Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 2, this.length) - return this[offset] | (this[offset + 1] << 8) -} - -Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 2, this.length) - return (this[offset] << 8) | this[offset + 1] -} - -Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - - return ((this[offset]) | - (this[offset + 1] << 8) | - (this[offset + 2] << 16)) + - (this[offset + 3] * 0x1000000) -} - -Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset] * 0x1000000) + - ((this[offset + 1] << 16) | - (this[offset + 2] << 8) | - this[offset + 3]) -} - -Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) { - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var val = this[offset] - var mul = 1 - var i = 0 - while (++i < byteLength && (mul *= 0x100)) { - val += this[offset + i] * mul - } - mul *= 0x80 - - if (val >= mul) val -= Math.pow(2, 8 * byteLength) - - return val -} - -Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) { - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var i = byteLength - var mul = 1 - var val = this[offset + --i] - while (i > 0 && (mul *= 0x100)) { - val += this[offset + --i] * mul - } - mul *= 0x80 - - if (val >= mul) val -= Math.pow(2, 8 * byteLength) - - return val -} - -Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 1, this.length) - if (!(this[offset] & 0x80)) return (this[offset]) - return ((0xff - this[offset] + 1) * -1) -} - -Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 2, this.length) - var val = this[offset] | (this[offset + 1] << 8) - return (val & 0x8000) ? val | 0xFFFF0000 : val -} - -Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 2, this.length) - var val = this[offset + 1] | (this[offset] << 8) - return (val & 0x8000) ? val | 0xFFFF0000 : val -} - -Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset]) | - (this[offset + 1] << 8) | - (this[offset + 2] << 16) | - (this[offset + 3] << 24) -} - -Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset] << 24) | - (this[offset + 1] << 16) | - (this[offset + 2] << 8) | - (this[offset + 3]) -} - -Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - return ieee754.read(this, offset, true, 23, 4) -} - -Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - return ieee754.read(this, offset, false, 23, 4) -} - -Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 8, this.length) - return ieee754.read(this, offset, true, 52, 8) -} - -Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 8, this.length) - return ieee754.read(this, offset, false, 52, 8) -} - -function checkInt (buf, value, offset, ext, max, min) { - if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance') - if (value > max || value < min) throw new RangeError('"value" argument is out of bounds') - if (offset + ext > buf.length) throw new RangeError('Index out of range') -} - -Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) { - value = +value - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) { - var maxBytes = Math.pow(2, 8 * byteLength) - 1 - checkInt(this, value, offset, byteLength, maxBytes, 0) - } - - var mul = 1 - var i = 0 - this[offset] = value & 0xFF - while (++i < byteLength && (mul *= 0x100)) { - this[offset + i] = (value / mul) & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) { - value = +value - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) { - var maxBytes = Math.pow(2, 8 * byteLength) - 1 - checkInt(this, value, offset, byteLength, maxBytes, 0) - } - - var i = byteLength - 1 - var mul = 1 - this[offset + i] = value & 0xFF - while (--i >= 0 && (mul *= 0x100)) { - this[offset + i] = (value / mul) & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0) - this[offset] = (value & 0xff) - return offset + 1 -} - -Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - return offset + 2 -} - -Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) - this[offset] = (value >>> 8) - this[offset + 1] = (value & 0xff) - return offset + 2 -} - -Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) - this[offset + 3] = (value >>> 24) - this[offset + 2] = (value >>> 16) - this[offset + 1] = (value >>> 8) - this[offset] = (value & 0xff) - return offset + 4 -} - -Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) - this[offset] = (value >>> 24) - this[offset + 1] = (value >>> 16) - this[offset + 2] = (value >>> 8) - this[offset + 3] = (value & 0xff) - return offset + 4 -} - -Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) { - var limit = Math.pow(2, (8 * byteLength) - 1) - - checkInt(this, value, offset, byteLength, limit - 1, -limit) - } - - var i = 0 - var mul = 1 - var sub = 0 - this[offset] = value & 0xFF - while (++i < byteLength && (mul *= 0x100)) { - if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) { - sub = 1 - } - this[offset + i] = ((value / mul) >> 0) - sub & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) { - var limit = Math.pow(2, (8 * byteLength) - 1) - - checkInt(this, value, offset, byteLength, limit - 1, -limit) - } - - var i = byteLength - 1 - var mul = 1 - var sub = 0 - this[offset + i] = value & 0xFF - while (--i >= 0 && (mul *= 0x100)) { - if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) { - sub = 1 - } - this[offset + i] = ((value / mul) >> 0) - sub & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80) - if (value < 0) value = 0xff + value + 1 - this[offset] = (value & 0xff) - return offset + 1 -} - -Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - return offset + 2 -} - -Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) - this[offset] = (value >>> 8) - this[offset + 1] = (value & 0xff) - return offset + 2 -} - -Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - this[offset + 2] = (value >>> 16) - this[offset + 3] = (value >>> 24) - return offset + 4 -} - -Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) - if (value < 0) value = 0xffffffff + value + 1 - this[offset] = (value >>> 24) - this[offset + 1] = (value >>> 16) - this[offset + 2] = (value >>> 8) - this[offset + 3] = (value & 0xff) - return offset + 4 -} - -function checkIEEE754 (buf, value, offset, ext, max, min) { - if (offset + ext > buf.length) throw new RangeError('Index out of range') - if (offset < 0) throw new RangeError('Index out of range') -} - -function writeFloat (buf, value, offset, littleEndian, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) { - checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38) - } - ieee754.write(buf, value, offset, littleEndian, 23, 4) - return offset + 4 -} - -Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) { - return writeFloat(this, value, offset, true, noAssert) -} - -Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) { - return writeFloat(this, value, offset, false, noAssert) -} - -function writeDouble (buf, value, offset, littleEndian, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) { - checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308) - } - ieee754.write(buf, value, offset, littleEndian, 52, 8) - return offset + 8 -} - -Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) { - return writeDouble(this, value, offset, true, noAssert) -} - -Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) { - return writeDouble(this, value, offset, false, noAssert) -} - -// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length) -Buffer.prototype.copy = function copy (target, targetStart, start, end) { - if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer') - if (!start) start = 0 - if (!end && end !== 0) end = this.length - if (targetStart >= target.length) targetStart = target.length - if (!targetStart) targetStart = 0 - if (end > 0 && end < start) end = start - - // Copy 0 bytes; we're done - if (end === start) return 0 - if (target.length === 0 || this.length === 0) return 0 - - // Fatal error conditions - if (targetStart < 0) { - throw new RangeError('targetStart out of bounds') - } - if (start < 0 || start >= this.length) throw new RangeError('Index out of range') - if (end < 0) throw new RangeError('sourceEnd out of bounds') - - // Are we oob? - if (end > this.length) end = this.length - if (target.length - targetStart < end - start) { - end = target.length - targetStart + start - } - - var len = end - start - - if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') { - // Use built-in when available, missing from IE11 - this.copyWithin(targetStart, start, end) - } else if (this === target && start < targetStart && targetStart < end) { - // descending copy from end - for (var i = len - 1; i >= 0; --i) { - target[i + targetStart] = this[i + start] - } - } else { - Uint8Array.prototype.set.call( - target, - this.subarray(start, end), - targetStart - ) - } - - return len -} - -// Usage: -// buffer.fill(number[, offset[, end]]) -// buffer.fill(buffer[, offset[, end]]) -// buffer.fill(string[, offset[, end]][, encoding]) -Buffer.prototype.fill = function fill (val, start, end, encoding) { - // Handle string cases: - if (typeof val === 'string') { - if (typeof start === 'string') { - encoding = start - start = 0 - end = this.length - } else if (typeof end === 'string') { - encoding = end - end = this.length - } - if (encoding !== undefined && typeof encoding !== 'string') { - throw new TypeError('encoding must be a string') - } - if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) { - throw new TypeError('Unknown encoding: ' + encoding) - } - if (val.length === 1) { - var code = val.charCodeAt(0) - if ((encoding === 'utf8' && code < 128) || - encoding === 'latin1') { - // Fast path: If `val` fits into a single byte, use that numeric value. - val = code - } - } - } else if (typeof val === 'number') { - val = val & 255 - } - - // Invalid ranges are not set to a default, so can range check early. - if (start < 0 || this.length < start || this.length < end) { - throw new RangeError('Out of range index') - } - - if (end <= start) { - return this - } - - start = start >>> 0 - end = end === undefined ? this.length : end >>> 0 - - if (!val) val = 0 - - var i - if (typeof val === 'number') { - for (i = start; i < end; ++i) { - this[i] = val - } - } else { - var bytes = Buffer.isBuffer(val) - ? val - : new Buffer(val, encoding) - var len = bytes.length - if (len === 0) { - throw new TypeError('The value "' + val + - '" is invalid for argument "value"') - } - for (i = 0; i < end - start; ++i) { - this[i + start] = bytes[i % len] - } - } - - return this -} - -// HELPER FUNCTIONS -// ================ - -var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g - -function base64clean (str) { - // Node takes equal signs as end of the Base64 encoding - str = str.split('=')[0] - // Node strips out invalid characters like \n and \t from the string, base64-js does not - str = str.trim().replace(INVALID_BASE64_RE, '') - // Node converts strings with length < 2 to '' - if (str.length < 2) return '' - // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not - while (str.length % 4 !== 0) { - str = str + '=' - } - return str -} - -function toHex (n) { - if (n < 16) return '0' + n.toString(16) - return n.toString(16) -} - -function utf8ToBytes (string, units) { - units = units || Infinity - var codePoint - var length = string.length - var leadSurrogate = null - var bytes = [] - - for (var i = 0; i < length; ++i) { - codePoint = string.charCodeAt(i) - - // is surrogate component - if (codePoint > 0xD7FF && codePoint < 0xE000) { - // last char was a lead - if (!leadSurrogate) { - // no lead yet - if (codePoint > 0xDBFF) { - // unexpected trail - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - continue - } else if (i + 1 === length) { - // unpaired lead - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - continue - } - - // valid lead - leadSurrogate = codePoint - - continue - } - - // 2 leads in a row - if (codePoint < 0xDC00) { - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - leadSurrogate = codePoint - continue - } - - // valid surrogate pair - codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000 - } else if (leadSurrogate) { - // valid bmp char, but last char was a lead - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - } - - leadSurrogate = null - - // encode utf8 - if (codePoint < 0x80) { - if ((units -= 1) < 0) break - bytes.push(codePoint) - } else if (codePoint < 0x800) { - if ((units -= 2) < 0) break - bytes.push( - codePoint >> 0x6 | 0xC0, - codePoint & 0x3F | 0x80 - ) - } else if (codePoint < 0x10000) { - if ((units -= 3) < 0) break - bytes.push( - codePoint >> 0xC | 0xE0, - codePoint >> 0x6 & 0x3F | 0x80, - codePoint & 0x3F | 0x80 - ) - } else if (codePoint < 0x110000) { - if ((units -= 4) < 0) break - bytes.push( - codePoint >> 0x12 | 0xF0, - codePoint >> 0xC & 0x3F | 0x80, - codePoint >> 0x6 & 0x3F | 0x80, - codePoint & 0x3F | 0x80 - ) - } else { - throw new Error('Invalid code point') - } - } - - return bytes -} - -function asciiToBytes (str) { - var byteArray = [] - for (var i = 0; i < str.length; ++i) { - // Node's code seems to be doing this and not & 0x7F.. - byteArray.push(str.charCodeAt(i) & 0xFF) - } - return byteArray -} - -function utf16leToBytes (str, units) { - var c, hi, lo - var byteArray = [] - for (var i = 0; i < str.length; ++i) { - if ((units -= 2) < 0) break - - c = str.charCodeAt(i) - hi = c >> 8 - lo = c % 256 - byteArray.push(lo) - byteArray.push(hi) - } - - return byteArray -} - -function base64ToBytes (str) { - return base64.toByteArray(base64clean(str)) -} - -function blitBuffer (src, dst, offset, length) { - for (var i = 0; i < length; ++i) { - if ((i + offset >= dst.length) || (i >= src.length)) break - dst[i + offset] = src[i] - } - return i -} - -// ArrayBuffers from another context (i.e. an iframe) do not pass the `instanceof` check -// but they should be treated as valid. See: https://github.com/feross/buffer/issues/166 -function isArrayBuffer (obj) { - return obj instanceof ArrayBuffer || - (obj != null && obj.constructor != null && obj.constructor.name === 'ArrayBuffer' && - typeof obj.byteLength === 'number') -} - -function numberIsNaN (obj) { - return obj !== obj // eslint-disable-line no-self-compare -} - -},{"base64-js":9,"ieee754":17}],13:[function(require,module,exports){ -(function (Buffer){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// NOTE: These type checking functions intentionally don't use `instanceof` -// because it is fragile and can be easily faked with `Object.create()`. - -function isArray(arg) { - if (Array.isArray) { - return Array.isArray(arg); - } - return objectToString(arg) === '[object Array]'; -} -exports.isArray = isArray; - -function isBoolean(arg) { - return typeof arg === 'boolean'; -} -exports.isBoolean = isBoolean; - -function isNull(arg) { - return arg === null; -} -exports.isNull = isNull; - -function isNullOrUndefined(arg) { - return arg == null; -} -exports.isNullOrUndefined = isNullOrUndefined; - -function isNumber(arg) { - return typeof arg === 'number'; -} -exports.isNumber = isNumber; - -function isString(arg) { - return typeof arg === 'string'; -} -exports.isString = isString; - -function isSymbol(arg) { - return typeof arg === 'symbol'; -} -exports.isSymbol = isSymbol; - -function isUndefined(arg) { - return arg === void 0; -} -exports.isUndefined = isUndefined; - -function isRegExp(re) { - return objectToString(re) === '[object RegExp]'; -} -exports.isRegExp = isRegExp; - -function isObject(arg) { - return typeof arg === 'object' && arg !== null; -} -exports.isObject = isObject; - -function isDate(d) { - return objectToString(d) === '[object Date]'; -} -exports.isDate = isDate; - -function isError(e) { - return (objectToString(e) === '[object Error]' || e instanceof Error); -} -exports.isError = isError; - -function isFunction(arg) { - return typeof arg === 'function'; -} -exports.isFunction = isFunction; - -function isPrimitive(arg) { - return arg === null || - typeof arg === 'boolean' || - typeof arg === 'number' || - typeof arg === 'string' || - typeof arg === 'symbol' || // ES6 symbol - typeof arg === 'undefined'; -} -exports.isPrimitive = isPrimitive; - -exports.isBuffer = Buffer.isBuffer; - -function objectToString(o) { - return Object.prototype.toString.call(o); -} - -}).call(this,{"isBuffer":require("../../is-buffer/index.js")}) -},{"../../is-buffer/index.js":19}],14:[function(require,module,exports){ -(function (process,Buffer){ -var stream = require('readable-stream') -var eos = require('end-of-stream') -var inherits = require('inherits') -var shift = require('stream-shift') - -var SIGNAL_FLUSH = (Buffer.from && Buffer.from !== Uint8Array.from) - ? Buffer.from([0]) - : new Buffer([0]) - -var onuncork = function(self, fn) { - if (self._corked) self.once('uncork', fn) - else fn() -} - -var autoDestroy = function (self, err) { - if (self._autoDestroy) self.destroy(err) -} - -var destroyer = function(self, end) { - return function(err) { - if (err) autoDestroy(self, err.message === 'premature close' ? null : err) - else if (end && !self._ended) self.end() - } -} - -var end = function(ws, fn) { - if (!ws) return fn() - if (ws._writableState && ws._writableState.finished) return fn() - if (ws._writableState) return ws.end(fn) - ws.end() - fn() -} - -var toStreams2 = function(rs) { - return new (stream.Readable)({objectMode:true, highWaterMark:16}).wrap(rs) -} - -var Duplexify = function(writable, readable, opts) { - if (!(this instanceof Duplexify)) return new Duplexify(writable, readable, opts) - stream.Duplex.call(this, opts) - - this._writable = null - this._readable = null - this._readable2 = null - - this._autoDestroy = !opts || opts.autoDestroy !== false - this._forwardDestroy = !opts || opts.destroy !== false - this._forwardEnd = !opts || opts.end !== false - this._corked = 1 // start corked - this._ondrain = null - this._drained = false - this._forwarding = false - this._unwrite = null - this._unread = null - this._ended = false - - this.destroyed = false - - if (writable) this.setWritable(writable) - if (readable) this.setReadable(readable) -} - -inherits(Duplexify, stream.Duplex) - -Duplexify.obj = function(writable, readable, opts) { - if (!opts) opts = {} - opts.objectMode = true - opts.highWaterMark = 16 - return new Duplexify(writable, readable, opts) -} - -Duplexify.prototype.cork = function() { - if (++this._corked === 1) this.emit('cork') -} - -Duplexify.prototype.uncork = function() { - if (this._corked && --this._corked === 0) this.emit('uncork') -} - -Duplexify.prototype.setWritable = function(writable) { - if (this._unwrite) this._unwrite() - - if (this.destroyed) { - if (writable && writable.destroy) writable.destroy() - return - } - - if (writable === null || writable === false) { - this.end() - return - } - - var self = this - var unend = eos(writable, {writable:true, readable:false}, destroyer(this, this._forwardEnd)) - - var ondrain = function() { - var ondrain = self._ondrain - self._ondrain = null - if (ondrain) ondrain() - } - - var clear = function() { - self._writable.removeListener('drain', ondrain) - unend() - } - - if (this._unwrite) process.nextTick(ondrain) // force a drain on stream reset to avoid livelocks - - this._writable = writable - this._writable.on('drain', ondrain) - this._unwrite = clear - - this.uncork() // always uncork setWritable -} - -Duplexify.prototype.setReadable = function(readable) { - if (this._unread) this._unread() - - if (this.destroyed) { - if (readable && readable.destroy) readable.destroy() - return - } - - if (readable === null || readable === false) { - this.push(null) - this.resume() - return - } - - var self = this - var unend = eos(readable, {writable:false, readable:true}, destroyer(this)) - - var onreadable = function() { - self._forward() - } - - var onend = function() { - self.push(null) - } - - var clear = function() { - self._readable2.removeListener('readable', onreadable) - self._readable2.removeListener('end', onend) - unend() - } - - this._drained = true - this._readable = readable - this._readable2 = readable._readableState ? readable : toStreams2(readable) - this._readable2.on('readable', onreadable) - this._readable2.on('end', onend) - this._unread = clear - - this._forward() -} - -Duplexify.prototype._read = function() { - this._drained = true - this._forward() -} - -Duplexify.prototype._forward = function() { - if (this._forwarding || !this._readable2 || !this._drained) return - this._forwarding = true - - var data - - while (this._drained && (data = shift(this._readable2)) !== null) { - if (this.destroyed) continue - this._drained = this.push(data) - } - - this._forwarding = false -} - -Duplexify.prototype.destroy = function(err) { - if (this.destroyed) return - this.destroyed = true - - var self = this - process.nextTick(function() { - self._destroy(err) - }) -} - -Duplexify.prototype._destroy = function(err) { - if (err) { - var ondrain = this._ondrain - this._ondrain = null - if (ondrain) ondrain(err) - else this.emit('error', err) - } - - if (this._forwardDestroy) { - if (this._readable && this._readable.destroy) this._readable.destroy() - if (this._writable && this._writable.destroy) this._writable.destroy() - } - - this.emit('close') -} - -Duplexify.prototype._write = function(data, enc, cb) { - if (this.destroyed) return cb() - if (this._corked) return onuncork(this, this._write.bind(this, data, enc, cb)) - if (data === SIGNAL_FLUSH) return this._finish(cb) - if (!this._writable) return cb() - - if (this._writable.write(data) === false) this._ondrain = cb - else cb() -} - - -Duplexify.prototype._finish = function(cb) { - var self = this - this.emit('preend') - onuncork(this, function() { - end(self._forwardEnd && self._writable, function() { - // haxx to not emit prefinish twice - if (self._writableState.prefinished === false) self._writableState.prefinished = true - self.emit('prefinish') - onuncork(self, cb) - }) - }) -} - -Duplexify.prototype.end = function(data, enc, cb) { - if (typeof data === 'function') return this.end(null, null, data) - if (typeof enc === 'function') return this.end(data, null, enc) - this._ended = true - if (data) this.write(data) - if (!this._writableState.ending) this.write(SIGNAL_FLUSH) - return stream.Writable.prototype.end.call(this, cb) -} - -module.exports = Duplexify - -}).call(this,require('_process'),require("buffer").Buffer) -},{"_process":30,"buffer":12,"end-of-stream":15,"inherits":18,"readable-stream":44,"stream-shift":47}],15:[function(require,module,exports){ -var once = require('once'); - -var noop = function() {}; - -var isRequest = function(stream) { - return stream.setHeader && typeof stream.abort === 'function'; -}; - -var isChildProcess = function(stream) { - return stream.stdio && Array.isArray(stream.stdio) && stream.stdio.length === 3 -}; - -var eos = function(stream, opts, callback) { - if (typeof opts === 'function') return eos(stream, null, opts); - if (!opts) opts = {}; - - callback = once(callback || noop); - - var ws = stream._writableState; - var rs = stream._readableState; - var readable = opts.readable || (opts.readable !== false && stream.readable); - var writable = opts.writable || (opts.writable !== false && stream.writable); - - var onlegacyfinish = function() { - if (!stream.writable) onfinish(); - }; - - var onfinish = function() { - writable = false; - if (!readable) callback.call(stream); - }; - - var onend = function() { - readable = false; - if (!writable) callback.call(stream); - }; - - var onexit = function(exitCode) { - callback.call(stream, exitCode ? new Error('exited with error code: ' + exitCode) : null); - }; - - var onerror = function(err) { - callback.call(stream, err); - }; - - var onclose = function() { - if (readable && !(rs && rs.ended)) return callback.call(stream, new Error('premature close')); - if (writable && !(ws && ws.ended)) return callback.call(stream, new Error('premature close')); - }; - - var onrequest = function() { - stream.req.on('finish', onfinish); - }; - - if (isRequest(stream)) { - stream.on('complete', onfinish); - stream.on('abort', onclose); - if (stream.req) onrequest(); - else stream.on('request', onrequest); - } else if (writable && !ws) { // legacy streams - stream.on('end', onlegacyfinish); - stream.on('close', onlegacyfinish); - } - - if (isChildProcess(stream)) stream.on('exit', onexit); - - stream.on('end', onend); - stream.on('finish', onfinish); - if (opts.error !== false) stream.on('error', onerror); - stream.on('close', onclose); - - return function() { - stream.removeListener('complete', onfinish); - stream.removeListener('abort', onclose); - stream.removeListener('request', onrequest); - if (stream.req) stream.req.removeListener('finish', onfinish); - stream.removeListener('end', onlegacyfinish); - stream.removeListener('close', onlegacyfinish); - stream.removeListener('finish', onfinish); - stream.removeListener('exit', onexit); - stream.removeListener('end', onend); - stream.removeListener('error', onerror); - stream.removeListener('close', onclose); - }; -}; - -module.exports = eos; - -},{"once":28}],16:[function(require,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -var objectCreate = Object.create || objectCreatePolyfill -var objectKeys = Object.keys || objectKeysPolyfill -var bind = Function.prototype.bind || functionBindPolyfill - -function EventEmitter() { - if (!this._events || !Object.prototype.hasOwnProperty.call(this, '_events')) { - this._events = objectCreate(null); - this._eventsCount = 0; - } - - this._maxListeners = this._maxListeners || undefined; -} -module.exports = EventEmitter; - -// Backwards-compat with node 0.10.x -EventEmitter.EventEmitter = EventEmitter; - -EventEmitter.prototype._events = undefined; -EventEmitter.prototype._maxListeners = undefined; - -// By default EventEmitters will print a warning if more than 10 listeners are -// added to it. This is a useful default which helps finding memory leaks. -var defaultMaxListeners = 10; - -var hasDefineProperty; -try { - var o = {}; - if (Object.defineProperty) Object.defineProperty(o, 'x', { value: 0 }); - hasDefineProperty = o.x === 0; -} catch (err) { hasDefineProperty = false } -if (hasDefineProperty) { - Object.defineProperty(EventEmitter, 'defaultMaxListeners', { - enumerable: true, - get: function() { - return defaultMaxListeners; - }, - set: function(arg) { - // check whether the input is a positive number (whose value is zero or - // greater and not a NaN). - if (typeof arg !== 'number' || arg < 0 || arg !== arg) - throw new TypeError('"defaultMaxListeners" must be a positive number'); - defaultMaxListeners = arg; - } - }); -} else { - EventEmitter.defaultMaxListeners = defaultMaxListeners; -} - -// Obviously not all Emitters should be limited to 10. This function allows -// that to be increased. Set to zero for unlimited. -EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) { - if (typeof n !== 'number' || n < 0 || isNaN(n)) - throw new TypeError('"n" argument must be a positive number'); - this._maxListeners = n; - return this; -}; - -function $getMaxListeners(that) { - if (that._maxListeners === undefined) - return EventEmitter.defaultMaxListeners; - return that._maxListeners; -} - -EventEmitter.prototype.getMaxListeners = function getMaxListeners() { - return $getMaxListeners(this); -}; - -// These standalone emit* functions are used to optimize calling of event -// handlers for fast cases because emit() itself often has a variable number of -// arguments and can be deoptimized because of that. These functions always have -// the same number of arguments and thus do not get deoptimized, so the code -// inside them can execute faster. -function emitNone(handler, isFn, self) { - if (isFn) - handler.call(self); - else { - var len = handler.length; - var listeners = arrayClone(handler, len); - for (var i = 0; i < len; ++i) - listeners[i].call(self); - } -} -function emitOne(handler, isFn, self, arg1) { - if (isFn) - handler.call(self, arg1); - else { - var len = handler.length; - var listeners = arrayClone(handler, len); - for (var i = 0; i < len; ++i) - listeners[i].call(self, arg1); - } -} -function emitTwo(handler, isFn, self, arg1, arg2) { - if (isFn) - handler.call(self, arg1, arg2); - else { - var len = handler.length; - var listeners = arrayClone(handler, len); - for (var i = 0; i < len; ++i) - listeners[i].call(self, arg1, arg2); - } -} -function emitThree(handler, isFn, self, arg1, arg2, arg3) { - if (isFn) - handler.call(self, arg1, arg2, arg3); - else { - var len = handler.length; - var listeners = arrayClone(handler, len); - for (var i = 0; i < len; ++i) - listeners[i].call(self, arg1, arg2, arg3); - } -} - -function emitMany(handler, isFn, self, args) { - if (isFn) - handler.apply(self, args); - else { - var len = handler.length; - var listeners = arrayClone(handler, len); - for (var i = 0; i < len; ++i) - listeners[i].apply(self, args); - } -} - -EventEmitter.prototype.emit = function emit(type) { - var er, handler, len, args, i, events; - var doError = (type === 'error'); - - events = this._events; - if (events) - doError = (doError && events.error == null); - else if (!doError) - return false; - - // If there is no 'error' event listener then throw. - if (doError) { - if (arguments.length > 1) - er = arguments[1]; - if (er instanceof Error) { - throw er; // Unhandled 'error' event - } else { - // At least give some kind of context to the user - var err = new Error('Unhandled "error" event. (' + er + ')'); - err.context = er; - throw err; - } - return false; - } - - handler = events[type]; - - if (!handler) - return false; - - var isFn = typeof handler === 'function'; - len = arguments.length; - switch (len) { - // fast cases - case 1: - emitNone(handler, isFn, this); - break; - case 2: - emitOne(handler, isFn, this, arguments[1]); - break; - case 3: - emitTwo(handler, isFn, this, arguments[1], arguments[2]); - break; - case 4: - emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]); - break; - // slower - default: - args = new Array(len - 1); - for (i = 1; i < len; i++) - args[i - 1] = arguments[i]; - emitMany(handler, isFn, this, args); - } - - return true; -}; - -function _addListener(target, type, listener, prepend) { - var m; - var events; - var existing; - - if (typeof listener !== 'function') - throw new TypeError('"listener" argument must be a function'); - - events = target._events; - if (!events) { - events = target._events = objectCreate(null); - target._eventsCount = 0; - } else { - // To avoid recursion in the case that type === "newListener"! Before - // adding it to the listeners, first emit "newListener". - if (events.newListener) { - target.emit('newListener', type, - listener.listener ? listener.listener : listener); - - // Re-assign `events` because a newListener handler could have caused the - // this._events to be assigned to a new object - events = target._events; - } - existing = events[type]; - } - - if (!existing) { - // Optimize the case of one listener. Don't need the extra array object. - existing = events[type] = listener; - ++target._eventsCount; - } else { - if (typeof existing === 'function') { - // Adding the second element, need to change to array. - existing = events[type] = - prepend ? [listener, existing] : [existing, listener]; - } else { - // If we've already got an array, just append. - if (prepend) { - existing.unshift(listener); - } else { - existing.push(listener); - } - } - - // Check for listener leak - if (!existing.warned) { - m = $getMaxListeners(target); - if (m && m > 0 && existing.length > m) { - existing.warned = true; - var w = new Error('Possible EventEmitter memory leak detected. ' + - existing.length + ' "' + String(type) + '" listeners ' + - 'added. Use emitter.setMaxListeners() to ' + - 'increase limit.'); - w.name = 'MaxListenersExceededWarning'; - w.emitter = target; - w.type = type; - w.count = existing.length; - if (typeof console === 'object' && console.warn) { - console.warn('%s: %s', w.name, w.message); - } - } - } - } - - return target; -} - -EventEmitter.prototype.addListener = function addListener(type, listener) { - return _addListener(this, type, listener, false); -}; - -EventEmitter.prototype.on = EventEmitter.prototype.addListener; - -EventEmitter.prototype.prependListener = - function prependListener(type, listener) { - return _addListener(this, type, listener, true); - }; - -function onceWrapper() { - if (!this.fired) { - this.target.removeListener(this.type, this.wrapFn); - this.fired = true; - switch (arguments.length) { - case 0: - return this.listener.call(this.target); - case 1: - return this.listener.call(this.target, arguments[0]); - case 2: - return this.listener.call(this.target, arguments[0], arguments[1]); - case 3: - return this.listener.call(this.target, arguments[0], arguments[1], - arguments[2]); - default: - var args = new Array(arguments.length); - for (var i = 0; i < args.length; ++i) - args[i] = arguments[i]; - this.listener.apply(this.target, args); - } - } -} - -function _onceWrap(target, type, listener) { - var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener }; - var wrapped = bind.call(onceWrapper, state); - wrapped.listener = listener; - state.wrapFn = wrapped; - return wrapped; -} - -EventEmitter.prototype.once = function once(type, listener) { - if (typeof listener !== 'function') - throw new TypeError('"listener" argument must be a function'); - this.on(type, _onceWrap(this, type, listener)); - return this; -}; - -EventEmitter.prototype.prependOnceListener = - function prependOnceListener(type, listener) { - if (typeof listener !== 'function') - throw new TypeError('"listener" argument must be a function'); - this.prependListener(type, _onceWrap(this, type, listener)); - return this; - }; - -// Emits a 'removeListener' event if and only if the listener was removed. -EventEmitter.prototype.removeListener = - function removeListener(type, listener) { - var list, events, position, i, originalListener; - - if (typeof listener !== 'function') - throw new TypeError('"listener" argument must be a function'); - - events = this._events; - if (!events) - return this; - - list = events[type]; - if (!list) - return this; - - if (list === listener || list.listener === listener) { - if (--this._eventsCount === 0) - this._events = objectCreate(null); - else { - delete events[type]; - if (events.removeListener) - this.emit('removeListener', type, list.listener || listener); - } - } else if (typeof list !== 'function') { - position = -1; - - for (i = list.length - 1; i >= 0; i--) { - if (list[i] === listener || list[i].listener === listener) { - originalListener = list[i].listener; - position = i; - break; - } - } - - if (position < 0) - return this; - - if (position === 0) - list.shift(); - else - spliceOne(list, position); - - if (list.length === 1) - events[type] = list[0]; - - if (events.removeListener) - this.emit('removeListener', type, originalListener || listener); - } - - return this; - }; - -EventEmitter.prototype.removeAllListeners = - function removeAllListeners(type) { - var listeners, events, i; - - events = this._events; - if (!events) - return this; - - // not listening for removeListener, no need to emit - if (!events.removeListener) { - if (arguments.length === 0) { - this._events = objectCreate(null); - this._eventsCount = 0; - } else if (events[type]) { - if (--this._eventsCount === 0) - this._events = objectCreate(null); - else - delete events[type]; - } - return this; - } - - // emit removeListener for all listeners on all events - if (arguments.length === 0) { - var keys = objectKeys(events); - var key; - for (i = 0; i < keys.length; ++i) { - key = keys[i]; - if (key === 'removeListener') continue; - this.removeAllListeners(key); - } - this.removeAllListeners('removeListener'); - this._events = objectCreate(null); - this._eventsCount = 0; - return this; - } - - listeners = events[type]; - - if (typeof listeners === 'function') { - this.removeListener(type, listeners); - } else if (listeners) { - // LIFO order - for (i = listeners.length - 1; i >= 0; i--) { - this.removeListener(type, listeners[i]); - } - } - - return this; - }; - -function _listeners(target, type, unwrap) { - var events = target._events; - - if (!events) - return []; - - var evlistener = events[type]; - if (!evlistener) - return []; - - if (typeof evlistener === 'function') - return unwrap ? [evlistener.listener || evlistener] : [evlistener]; - - return unwrap ? unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length); -} - -EventEmitter.prototype.listeners = function listeners(type) { - return _listeners(this, type, true); -}; - -EventEmitter.prototype.rawListeners = function rawListeners(type) { - return _listeners(this, type, false); -}; - -EventEmitter.listenerCount = function(emitter, type) { - if (typeof emitter.listenerCount === 'function') { - return emitter.listenerCount(type); - } else { - return listenerCount.call(emitter, type); - } -}; - -EventEmitter.prototype.listenerCount = listenerCount; -function listenerCount(type) { - var events = this._events; - - if (events) { - var evlistener = events[type]; - - if (typeof evlistener === 'function') { - return 1; - } else if (evlistener) { - return evlistener.length; - } - } - - return 0; -} - -EventEmitter.prototype.eventNames = function eventNames() { - return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : []; -}; - -// About 1.5x faster than the two-arg version of Array#splice(). -function spliceOne(list, index) { - for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1) - list[i] = list[k]; - list.pop(); -} - -function arrayClone(arr, n) { - var copy = new Array(n); - for (var i = 0; i < n; ++i) - copy[i] = arr[i]; - return copy; -} - -function unwrapListeners(arr) { - var ret = new Array(arr.length); - for (var i = 0; i < ret.length; ++i) { - ret[i] = arr[i].listener || arr[i]; - } - return ret; -} - -function objectCreatePolyfill(proto) { - var F = function() {}; - F.prototype = proto; - return new F; -} -function objectKeysPolyfill(obj) { - var keys = []; - for (var k in obj) if (Object.prototype.hasOwnProperty.call(obj, k)) { - keys.push(k); - } - return k; -} -function functionBindPolyfill(context) { - var fn = this; - return function () { - return fn.apply(context, arguments); - }; -} - -},{}],17:[function(require,module,exports){ -exports.read = function (buffer, offset, isLE, mLen, nBytes) { - var e, m - var eLen = (nBytes * 8) - mLen - 1 - var eMax = (1 << eLen) - 1 - var eBias = eMax >> 1 - var nBits = -7 - var i = isLE ? (nBytes - 1) : 0 - var d = isLE ? -1 : 1 - var s = buffer[offset + i] - - i += d - - e = s & ((1 << (-nBits)) - 1) - s >>= (-nBits) - nBits += eLen - for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {} - - m = e & ((1 << (-nBits)) - 1) - e >>= (-nBits) - nBits += mLen - for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {} - - if (e === 0) { - e = 1 - eBias - } else if (e === eMax) { - return m ? NaN : ((s ? -1 : 1) * Infinity) - } else { - m = m + Math.pow(2, mLen) - e = e - eBias - } - return (s ? -1 : 1) * m * Math.pow(2, e - mLen) -} - -exports.write = function (buffer, value, offset, isLE, mLen, nBytes) { - var e, m, c - var eLen = (nBytes * 8) - mLen - 1 - var eMax = (1 << eLen) - 1 - var eBias = eMax >> 1 - var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0) - var i = isLE ? 0 : (nBytes - 1) - var d = isLE ? 1 : -1 - var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0 - - value = Math.abs(value) - - if (isNaN(value) || value === Infinity) { - m = isNaN(value) ? 1 : 0 - e = eMax - } else { - e = Math.floor(Math.log(value) / Math.LN2) - if (value * (c = Math.pow(2, -e)) < 1) { - e-- - c *= 2 - } - if (e + eBias >= 1) { - value += rt / c - } else { - value += rt * Math.pow(2, 1 - eBias) - } - if (value * c >= 2) { - e++ - c /= 2 - } - - if (e + eBias >= eMax) { - m = 0 - e = eMax - } else if (e + eBias >= 1) { - m = ((value * c) - 1) * Math.pow(2, mLen) - e = e + eBias - } else { - m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen) - e = 0 - } - } - - for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {} - - e = (e << mLen) | m - eLen += mLen - for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {} - - buffer[offset + i - d] |= s * 128 -} - -},{}],18:[function(require,module,exports){ -if (typeof Object.create === 'function') { - // implementation from standard node.js 'util' module - module.exports = function inherits(ctor, superCtor) { - ctor.super_ = superCtor - ctor.prototype = Object.create(superCtor.prototype, { - constructor: { - value: ctor, - enumerable: false, - writable: true, - configurable: true - } - }); - }; -} else { - // old school shim for old browsers - module.exports = function inherits(ctor, superCtor) { - ctor.super_ = superCtor - var TempCtor = function () {} - TempCtor.prototype = superCtor.prototype - ctor.prototype = new TempCtor() - ctor.prototype.constructor = ctor - } -} - -},{}],19:[function(require,module,exports){ -/*! - * Determine if an object is a Buffer - * - * @author Feross Aboukhadijeh - * @license MIT - */ - -// The _isBuffer check is for Safari 5-7 support, because it's missing -// Object.prototype.constructor. Remove this eventually -module.exports = function (obj) { - return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer) -} - -function isBuffer (obj) { - return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj) -} - -// For Node v0.10 support. Remove this eventually. -function isSlowBuffer (obj) { - return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0)) -} - -},{}],20:[function(require,module,exports){ -var toString = {}.toString; - -module.exports = Array.isArray || function (arr) { - return toString.call(arr) == '[object Array]'; -}; - -},{}],21:[function(require,module,exports){ -'use strict' - -var Buffer = require('safe-buffer').Buffer - -/* Protocol - protocol constants */ -var protocol = module.exports - -/* Command code => mnemonic */ -protocol.types = { - 0: 'reserved', - 1: 'connect', - 2: 'connack', - 3: 'publish', - 4: 'puback', - 5: 'pubrec', - 6: 'pubrel', - 7: 'pubcomp', - 8: 'subscribe', - 9: 'suback', - 10: 'unsubscribe', - 11: 'unsuback', - 12: 'pingreq', - 13: 'pingresp', - 14: 'disconnect', - 15: 'reserved' -} - -/* Mnemonic => Command code */ -protocol.codes = {} -for (var k in protocol.types) { - var v = protocol.types[k] - protocol.codes[v] = k -} - -/* Header */ -protocol.CMD_SHIFT = 4 -protocol.CMD_MASK = 0xF0 -protocol.DUP_MASK = 0x08 -protocol.QOS_MASK = 0x03 -protocol.QOS_SHIFT = 1 -protocol.RETAIN_MASK = 0x01 - -/* Length */ -protocol.LENGTH_MASK = 0x7F -protocol.LENGTH_FIN_MASK = 0x80 - -/* Connack */ -protocol.SESSIONPRESENT_MASK = 0x01 -protocol.SESSIONPRESENT_HEADER = Buffer.from([protocol.SESSIONPRESENT_MASK]) -protocol.CONNACK_HEADER = Buffer.from([protocol.codes['connack'] << protocol.CMD_SHIFT]) - -/* Connect */ -protocol.USERNAME_MASK = 0x80 -protocol.PASSWORD_MASK = 0x40 -protocol.WILL_RETAIN_MASK = 0x20 -protocol.WILL_QOS_MASK = 0x18 -protocol.WILL_QOS_SHIFT = 3 -protocol.WILL_FLAG_MASK = 0x04 -protocol.CLEAN_SESSION_MASK = 0x02 -protocol.CONNECT_HEADER = Buffer.from([protocol.codes['connect'] << protocol.CMD_SHIFT]) - -function genHeader (type) { - return [0, 1, 2].map(function (qos) { - return [0, 1].map(function (dup) { - return [0, 1].map(function (retain) { - var buf = new Buffer(1) - buf.writeUInt8( - protocol.codes[type] << protocol.CMD_SHIFT | - (dup ? protocol.DUP_MASK : 0) | - qos << protocol.QOS_SHIFT | retain, 0, true) - return buf - }) - }) - }) -} - -/* Publish */ -protocol.PUBLISH_HEADER = genHeader('publish') - -/* Subscribe */ -protocol.SUBSCRIBE_HEADER = genHeader('subscribe') - -/* Unsubscribe */ -protocol.UNSUBSCRIBE_HEADER = genHeader('unsubscribe') - -/* Confirmations */ -protocol.ACKS = { - unsuback: genHeader('unsuback'), - puback: genHeader('puback'), - pubcomp: genHeader('pubcomp'), - pubrel: genHeader('pubrel'), - pubrec: genHeader('pubrec') -} - -protocol.SUBACK_HEADER = Buffer.from([protocol.codes['suback'] << protocol.CMD_SHIFT]) - -/* Protocol versions */ -protocol.VERSION3 = Buffer.from([3]) -protocol.VERSION4 = Buffer.from([4]) - -/* QoS */ -protocol.QOS = [0, 1, 2].map(function (qos) { - return Buffer.from([qos]) -}) - -/* Empty packets */ -protocol.EMPTY = { - pingreq: Buffer.from([protocol.codes['pingreq'] << 4, 0]), - pingresp: Buffer.from([protocol.codes['pingresp'] << 4, 0]), - disconnect: Buffer.from([protocol.codes['disconnect'] << 4, 0]) -} - -},{"safe-buffer":46}],22:[function(require,module,exports){ -'use strict' - -var Buffer = require('safe-buffer').Buffer -var writeToStream = require('./writeToStream') -var EE = require('events').EventEmitter -var inherits = require('inherits') - -function generate (packet) { - var stream = new Accumulator() - writeToStream(packet, stream) - return stream.concat() -} - -function Accumulator () { - this._array = new Array(20) - this._i = 0 -} - -inherits(Accumulator, EE) - -Accumulator.prototype.write = function (chunk) { - this._array[this._i++] = chunk - return true -} - -Accumulator.prototype.concat = function () { - var length = 0 - var lengths = new Array(this._array.length) - var list = this._array - var pos = 0 - var i - var result - - for (i = 0; i < list.length && list[i] !== undefined; i++) { - if (typeof list[i] !== 'string') lengths[i] = list[i].length - else lengths[i] = Buffer.byteLength(list[i]) - - length += lengths[i] - } - - result = Buffer.allocUnsafe(length) - - for (i = 0; i < list.length && list[i] !== undefined; i++) { - if (typeof list[i] !== 'string') { - list[i].copy(result, pos) - pos += lengths[i] - } else { - result.write(list[i], pos) - pos += lengths[i] - } - } - - return result -} - -module.exports = generate - -},{"./writeToStream":27,"events":16,"inherits":18,"safe-buffer":46}],23:[function(require,module,exports){ -'use strict' - -exports.parser = require('./parser') -exports.generate = require('./generate') -exports.writeToStream = require('./writeToStream') - -},{"./generate":22,"./parser":26,"./writeToStream":27}],24:[function(require,module,exports){ -'use strict' - -var Buffer = require('safe-buffer').Buffer -var max = 65536 -var cache = {} - -function generateBuffer (i) { - var buffer = Buffer.allocUnsafe(2) - buffer.writeUInt8(i >> 8, 0) - buffer.writeUInt8(i & 0x00FF, 0 + 1) - - return buffer -} - -function generateCache () { - for (var i = 0; i < max; i++) { - cache[i] = generateBuffer(i) - } -} - -module.exports = { - cache: cache, - generateCache: generateCache, - generateNumber: generateBuffer -} - -},{"safe-buffer":46}],25:[function(require,module,exports){ - -function Packet () { - this.cmd = null - this.retain = false - this.qos = 0 - this.dup = false - this.length = -1 - this.topic = null - this.payload = null -} - -module.exports = Packet - -},{}],26:[function(require,module,exports){ -'use strict' - -var bl = require('bl') -var inherits = require('inherits') -var EE = require('events').EventEmitter -var Packet = require('./packet') -var constants = require('./constants') - -function Parser () { - if (!(this instanceof Parser)) return new Parser() - - this._states = [ - '_parseHeader', - '_parseLength', - '_parsePayload', - '_newPacket' - ] - - this._resetState() -} - -inherits(Parser, EE) - -Parser.prototype._resetState = function () { - this.packet = new Packet() - this.error = null - this._list = bl() - this._stateCounter = 0 -} - -Parser.prototype.parse = function (buf) { - if (this.error) this._resetState() - - this._list.append(buf) - - while ((this.packet.length !== -1 || this._list.length > 0) && - this[this._states[this._stateCounter]]() && - !this.error) { - this._stateCounter++ - - if (this._stateCounter >= this._states.length) this._stateCounter = 0 - } - - return this._list.length -} - -Parser.prototype._parseHeader = function () { - // There is at least one byte in the buffer - var zero = this._list.readUInt8(0) - this.packet.cmd = constants.types[zero >> constants.CMD_SHIFT] - this.packet.retain = (zero & constants.RETAIN_MASK) !== 0 - this.packet.qos = (zero >> constants.QOS_SHIFT) & constants.QOS_MASK - this.packet.dup = (zero & constants.DUP_MASK) !== 0 - - this._list.consume(1) - - return true -} - -Parser.prototype._parseLength = function () { - // There is at least one byte in the list - var bytes = 0 - var mul = 1 - var length = 0 - var result = true - var current - - while (bytes < 5) { - current = this._list.readUInt8(bytes++) - length += mul * (current & constants.LENGTH_MASK) - mul *= 0x80 - - if ((current & constants.LENGTH_FIN_MASK) === 0) break - if (this._list.length <= bytes) { - result = false - break - } - } - - if (result) { - this.packet.length = length - this._list.consume(bytes) - } - - return result -} - -Parser.prototype._parsePayload = function () { - var result = false - - // Do we have a payload? Do we have enough data to complete the payload? - // PINGs have no payload - if (this.packet.length === 0 || this._list.length >= this.packet.length) { - this._pos = 0 - - switch (this.packet.cmd) { - case 'connect': - this._parseConnect() - break - case 'connack': - this._parseConnack() - break - case 'publish': - this._parsePublish() - break - case 'puback': - case 'pubrec': - case 'pubrel': - case 'pubcomp': - this._parseMessageId() - break - case 'subscribe': - this._parseSubscribe() - break - case 'suback': - this._parseSuback() - break - case 'unsubscribe': - this._parseUnsubscribe() - break - case 'unsuback': - this._parseUnsuback() - break - case 'pingreq': - case 'pingresp': - case 'disconnect': - // These are empty, nothing to do - break - default: - this._emitError(new Error('Not supported')) - } - - result = true - } - - return result -} - -Parser.prototype._parseConnect = function () { - var protocolId // Protocol ID - var clientId // Client ID - var topic // Will topic - var payload // Will payload - var password // Password - var username // Username - var flags = {} - var packet = this.packet - - // Parse protocolId - protocolId = this._parseString() - - if (protocolId === null) return this._emitError(new Error('Cannot parse protocolId')) - if (protocolId !== 'MQTT' && protocolId !== 'MQIsdp') { - return this._emitError(new Error('Invalid protocolId')) - } - - packet.protocolId = protocolId - - // Parse constants version number - if (this._pos >= this._list.length) return this._emitError(new Error('Packet too short')) - - packet.protocolVersion = this._list.readUInt8(this._pos) - - if (packet.protocolVersion !== 3 && packet.protocolVersion !== 4) { - return this._emitError(new Error('Invalid protocol version')) - } - - this._pos++ - - if (this._pos >= this._list.length) { - return this._emitError(new Error('Packet too short')) - } - - // Parse connect flags - flags.username = (this._list.readUInt8(this._pos) & constants.USERNAME_MASK) - flags.password = (this._list.readUInt8(this._pos) & constants.PASSWORD_MASK) - flags.will = (this._list.readUInt8(this._pos) & constants.WILL_FLAG_MASK) - - if (flags.will) { - packet.will = {} - packet.will.retain = (this._list.readUInt8(this._pos) & constants.WILL_RETAIN_MASK) !== 0 - packet.will.qos = (this._list.readUInt8(this._pos) & - constants.WILL_QOS_MASK) >> constants.WILL_QOS_SHIFT - } - - packet.clean = (this._list.readUInt8(this._pos) & constants.CLEAN_SESSION_MASK) !== 0 - this._pos++ - - // Parse keepalive - packet.keepalive = this._parseNum() - if (packet.keepalive === -1) return this._emitError(new Error('Packet too short')) - - // Parse clientId - clientId = this._parseString() - if (clientId === null) return this._emitError(new Error('Packet too short')) - packet.clientId = clientId - - if (flags.will) { - // Parse will topic - topic = this._parseString() - if (topic === null) return this._emitError(new Error('Cannot parse will topic')) - packet.will.topic = topic - - // Parse will payload - payload = this._parseBuffer() - if (payload === null) return this._emitError(new Error('Cannot parse will payload')) - packet.will.payload = payload - } - - // Parse username - if (flags.username) { - username = this._parseString() - if (username === null) return this._emitError(new Error('Cannot parse username')) - packet.username = username - } - - // Parse password - if (flags.password) { - password = this._parseBuffer() - if (password === null) return this._emitError(new Error('Cannot parse password')) - packet.password = password - } - - return packet -} - -Parser.prototype._parseConnack = function () { - var packet = this.packet - - if (this._list.length < 2) return null - - packet.sessionPresent = !!(this._list.readUInt8(this._pos++) & constants.SESSIONPRESENT_MASK) - packet.returnCode = this._list.readUInt8(this._pos) - - if (packet.returnCode === -1) return this._emitError(new Error('Cannot parse return code')) -} - -Parser.prototype._parsePublish = function () { - var packet = this.packet - packet.topic = this._parseString() - - if (packet.topic === null) return this._emitError(new Error('Cannot parse topic')) - - // Parse messageId - if (packet.qos > 0) if (!this._parseMessageId()) { return } - - packet.payload = this._list.slice(this._pos, packet.length) -} - -Parser.prototype._parseSubscribe = function () { - var packet = this.packet - var topic - var qos - - if (packet.qos !== 1) { - return this._emitError(new Error('Wrong subscribe header')) - } - - packet.subscriptions = [] - - if (!this._parseMessageId()) { return } - - while (this._pos < packet.length) { - // Parse topic - topic = this._parseString() - if (topic === null) return this._emitError(new Error('Cannot parse topic')) - - qos = this._list.readUInt8(this._pos++) - - // Push pair to subscriptions - packet.subscriptions.push({ topic: topic, qos: qos }) - } -} - -Parser.prototype._parseSuback = function () { - this.packet.granted = [] - - if (!this._parseMessageId()) { return } - - // Parse granted QoSes - while (this._pos < this.packet.length) { - this.packet.granted.push(this._list.readUInt8(this._pos++)) - } -} - -Parser.prototype._parseUnsubscribe = function () { - var packet = this.packet - - packet.unsubscriptions = [] - - // Parse messageId - if (!this._parseMessageId()) { return } - - while (this._pos < packet.length) { - var topic - - // Parse topic - topic = this._parseString() - if (topic === null) return this._emitError(new Error('Cannot parse topic')) - - // Push topic to unsubscriptions - packet.unsubscriptions.push(topic) - } -} - -Parser.prototype._parseUnsuback = function () { - if (!this._parseMessageId()) return this._emitError(new Error('Cannot parse messageId')) -} - -Parser.prototype._parseMessageId = function () { - var packet = this.packet - - packet.messageId = this._parseNum() - - if (packet.messageId === null) { - this._emitError(new Error('Cannot parse messageId')) - return false - } - - return true -} - -Parser.prototype._parseString = function (maybeBuffer) { - var length = this._parseNum() - var result - var end = length + this._pos - - if (length === -1 || end > this._list.length || end > this.packet.length) return null - - result = this._list.toString('utf8', this._pos, end) - this._pos += length - - return result -} - -Parser.prototype._parseBuffer = function () { - var length = this._parseNum() - var result - var end = length + this._pos - - if (length === -1 || end > this._list.length || end > this.packet.length) return null - - result = this._list.slice(this._pos, end) - - this._pos += length - - return result -} - -Parser.prototype._parseNum = function () { - if (this._list.length - this._pos < 2) return -1 - - var result = this._list.readUInt16BE(this._pos) - this._pos += 2 - - return result -} - -Parser.prototype._newPacket = function () { - if (this.packet) { - this._list.consume(this.packet.length) - this.emit('packet', this.packet) - } - - this.packet = new Packet() - - return true -} - -Parser.prototype._emitError = function (err) { - this.error = err - this.emit('error', err) -} - -module.exports = Parser - -},{"./constants":21,"./packet":25,"bl":10,"events":16,"inherits":18}],27:[function(require,module,exports){ -'use strict' - -var protocol = require('./constants') -var Buffer = require('safe-buffer').Buffer -var empty = Buffer.allocUnsafe(0) -var zeroBuf = Buffer.from([0]) -var numbers = require('./numbers') -var nextTick = require('process-nextick-args').nextTick - -var numCache = numbers.cache -var generateNumber = numbers.generateNumber -var generateCache = numbers.generateCache -var writeNumber = writeNumberCached -var toGenerate = true - -function generate (packet, stream) { - if (stream.cork) { - stream.cork() - nextTick(uncork, stream) - } - - if (toGenerate) { - toGenerate = false - generateCache() - } - - switch (packet.cmd) { - case 'connect': - return connect(packet, stream) - case 'connack': - return connack(packet, stream) - case 'publish': - return publish(packet, stream) - case 'puback': - case 'pubrec': - case 'pubrel': - case 'pubcomp': - case 'unsuback': - return confirmation(packet, stream) - case 'subscribe': - return subscribe(packet, stream) - case 'suback': - return suback(packet, stream) - case 'unsubscribe': - return unsubscribe(packet, stream) - case 'pingreq': - case 'pingresp': - case 'disconnect': - return emptyPacket(packet, stream) - default: - stream.emit('error', new Error('Unknown command')) - return false - } -} -/** - * Controls numbers cache. - * Set to "false" to allocate buffers on-the-flight instead of pre-generated cache - */ -Object.defineProperty(generate, 'cacheNumbers', { - get: function () { - return writeNumber === writeNumberCached - }, - set: function (value) { - if (value) { - if (!numCache || Object.keys(numCache).length === 0) toGenerate = true - writeNumber = writeNumberCached - } else { - toGenerate = false - writeNumber = writeNumberGenerated - } - } -}) - -function uncork (stream) { - stream.uncork() -} - -function connect (opts, stream) { - var settings = opts || {} - var protocolId = settings.protocolId || 'MQTT' - var protocolVersion = settings.protocolVersion || 4 - var will = settings.will - var clean = settings.clean - var keepalive = settings.keepalive || 0 - var clientId = settings.clientId || '' - var username = settings.username - var password = settings.password - - if (clean === undefined) clean = true - - var length = 0 - - // Must be a string and non-falsy - if (!protocolId || - (typeof protocolId !== 'string' && !Buffer.isBuffer(protocolId))) { - stream.emit('error', new Error('Invalid protocolId')) - return false - } else length += protocolId.length + 2 - - // Must be 3 or 4 - if (protocolVersion !== 3 && protocolVersion !== 4) { - stream.emit('error', new Error('Invalid protocol version')) - return false - } else length += 1 - - // ClientId might be omitted in 3.1.1, but only if cleanSession is set to 1 - if ((typeof clientId === 'string' || Buffer.isBuffer(clientId)) && - (clientId || protocolVersion === 4) && (clientId || clean)) { - length += clientId.length + 2 - } else { - if (protocolVersion < 4) { - stream.emit('error', new Error('clientId must be supplied before 3.1.1')) - return false - } - if ((clean * 1) === 0) { - stream.emit('error', new Error('clientId must be given if cleanSession set to 0')) - return false - } - } - - // Must be a two byte number - if (typeof keepalive !== 'number' || - keepalive < 0 || - keepalive > 65535 || - keepalive % 1 !== 0) { - stream.emit('error', new Error('Invalid keepalive')) - return false - } else length += 2 - - // Connect flags - length += 1 - - // If will exists... - if (will) { - // It must be an object - if (typeof will !== 'object') { - stream.emit('error', new Error('Invalid will')) - return false - } - // It must have topic typeof string - if (!will.topic || typeof will.topic !== 'string') { - stream.emit('error', new Error('Invalid will topic')) - return false - } else { - length += Buffer.byteLength(will.topic) + 2 - } - - // Payload - if (will.payload && will.payload) { - if (will.payload.length >= 0) { - if (typeof will.payload === 'string') { - length += Buffer.byteLength(will.payload) + 2 - } else { - length += will.payload.length + 2 - } - } else { - stream.emit('error', new Error('Invalid will payload')) - return false - } - } else { - length += 2 - } - } - - // Username - var providedUsername = false - if (username != null) { - if (isStringOrBuffer(username)) { - providedUsername = true - length += Buffer.byteLength(username) + 2 - } else { - stream.emit('error', new Error('Invalid username')) - return false - } - } - - // Password - if (password != null) { - if (!providedUsername) { - stream.emit('error', new Error('Username is required to use password')) - return false - } - - if (isStringOrBuffer(password)) { - length += byteLength(password) + 2 - } else { - stream.emit('error', new Error('Invalid password')) - return false - } - } - - // Generate header - stream.write(protocol.CONNECT_HEADER) - - // Generate length - writeLength(stream, length) - - // Generate protocol ID - writeStringOrBuffer(stream, protocolId) - stream.write( - protocolVersion === 4 ? protocol.VERSION4 : protocol.VERSION3 - ) - - // Connect flags - var flags = 0 - flags |= (username != null) ? protocol.USERNAME_MASK : 0 - flags |= (password != null) ? protocol.PASSWORD_MASK : 0 - flags |= (will && will.retain) ? protocol.WILL_RETAIN_MASK : 0 - flags |= (will && will.qos) ? will.qos << protocol.WILL_QOS_SHIFT : 0 - flags |= will ? protocol.WILL_FLAG_MASK : 0 - flags |= clean ? protocol.CLEAN_SESSION_MASK : 0 - - stream.write(Buffer.from([flags])) - - // Keepalive - writeNumber(stream, keepalive) - - // Client ID - writeStringOrBuffer(stream, clientId) - - // Will - if (will) { - writeString(stream, will.topic) - writeStringOrBuffer(stream, will.payload) - } - - // Username and password - if (username != null) { - writeStringOrBuffer(stream, username) - } - if (password != null) { - writeStringOrBuffer(stream, password) - } - // This is a small packet that happens only once on a stream - // We assume the stream is always free to receive more data after this - return true -} - -function connack (opts, stream) { - var settings = opts || {} - var rc = settings.returnCode - - // Check return code - if (typeof rc !== 'number') { - stream.emit('error', new Error('Invalid return code')) - return false - } - - stream.write(protocol.CONNACK_HEADER) - writeLength(stream, 2) - stream.write(opts.sessionPresent ? protocol.SESSIONPRESENT_HEADER : zeroBuf) - - return stream.write(Buffer.from([rc])) -} - -function publish (opts, stream) { - var settings = opts || {} - var qos = settings.qos || 0 - var retain = settings.retain ? protocol.RETAIN_MASK : 0 - var topic = settings.topic - var payload = settings.payload || empty - var id = settings.messageId - - var length = 0 - - // Topic must be a non-empty string or Buffer - if (typeof topic === 'string') length += Buffer.byteLength(topic) + 2 - else if (Buffer.isBuffer(topic)) length += topic.length + 2 - else { - stream.emit('error', new Error('Invalid topic')) - return false - } - - // Get the payload length - if (!Buffer.isBuffer(payload)) length += Buffer.byteLength(payload) - else length += payload.length - - // Message ID must a number if qos > 0 - if (qos && typeof id !== 'number') { - stream.emit('error', new Error('Invalid messageId')) - return false - } else if (qos) length += 2 - - // Header - stream.write(protocol.PUBLISH_HEADER[qos][opts.dup ? 1 : 0][retain ? 1 : 0]) - - // Remaining length - writeLength(stream, length) - - // Topic - writeNumber(stream, byteLength(topic)) - stream.write(topic) - - // Message ID - if (qos > 0) writeNumber(stream, id) - - // Payload - return stream.write(payload) -} - -/* Puback, pubrec, pubrel and pubcomp */ -function confirmation (opts, stream) { - var settings = opts || {} - var type = settings.cmd || 'puback' - var id = settings.messageId - var dup = (settings.dup && type === 'pubrel') ? protocol.DUP_MASK : 0 - var qos = 0 - - if (type === 'pubrel') qos = 1 - - // Check message ID - if (typeof id !== 'number') { - stream.emit('error', new Error('Invalid messageId')) - return false - } - - // Header - stream.write(protocol.ACKS[type][qos][dup][0]) - - // Length - writeLength(stream, 2) - - // Message ID - return writeNumber(stream, id) -} - -function subscribe (opts, stream) { - var settings = opts || {} - var dup = settings.dup ? protocol.DUP_MASK : 0 - var id = settings.messageId - var subs = settings.subscriptions - - var length = 0 - - // Check message ID - if (typeof id !== 'number') { - stream.emit('error', new Error('Invalid messageId')) - return false - } else length += 2 - - // Check subscriptions - if (typeof subs === 'object' && subs.length) { - for (var i = 0; i < subs.length; i += 1) { - var itopic = subs[i].topic - var iqos = subs[i].qos - - if (typeof itopic !== 'string') { - stream.emit('error', new Error('Invalid subscriptions - invalid topic')) - return false - } - if (typeof iqos !== 'number') { - stream.emit('error', new Error('Invalid subscriptions - invalid qos')) - return false - } - - length += Buffer.byteLength(itopic) + 2 + 1 - } - } else { - stream.emit('error', new Error('Invalid subscriptions')) - return false - } - - // Generate header - stream.write(protocol.SUBSCRIBE_HEADER[1][dup ? 1 : 0][0]) - - // Generate length - writeLength(stream, length) - - // Generate message ID - writeNumber(stream, id) - - var result = true - - // Generate subs - for (var j = 0; j < subs.length; j++) { - var sub = subs[j] - var jtopic = sub.topic - var jqos = sub.qos - - // Write topic string - writeString(stream, jtopic) - - // Write qos - result = stream.write(protocol.QOS[jqos]) - } - - return result -} - -function suback (opts, stream) { - var settings = opts || {} - var id = settings.messageId - var granted = settings.granted - - var length = 0 - - // Check message ID - if (typeof id !== 'number') { - stream.emit('error', new Error('Invalid messageId')) - return false - } else length += 2 - - // Check granted qos vector - if (typeof granted === 'object' && granted.length) { - for (var i = 0; i < granted.length; i += 1) { - if (typeof granted[i] !== 'number') { - stream.emit('error', new Error('Invalid qos vector')) - return false - } - length += 1 - } - } else { - stream.emit('error', new Error('Invalid qos vector')) - return false - } - - // header - stream.write(protocol.SUBACK_HEADER) - - // Length - writeLength(stream, length) - - // Message ID - writeNumber(stream, id) - - return stream.write(Buffer.from(granted)) -} - -function unsubscribe (opts, stream) { - var settings = opts || {} - var id = settings.messageId - var dup = settings.dup ? protocol.DUP_MASK : 0 - var unsubs = settings.unsubscriptions - - var length = 0 - - // Check message ID - if (typeof id !== 'number') { - stream.emit('error', new Error('Invalid messageId')) - return false - } else { - length += 2 - } - // Check unsubs - if (typeof unsubs === 'object' && unsubs.length) { - for (var i = 0; i < unsubs.length; i += 1) { - if (typeof unsubs[i] !== 'string') { - stream.emit('error', new Error('Invalid unsubscriptions')) - return false - } - length += Buffer.byteLength(unsubs[i]) + 2 - } - } else { - stream.emit('error', new Error('Invalid unsubscriptions')) - return false - } - - // Header - stream.write(protocol.UNSUBSCRIBE_HEADER[1][dup ? 1 : 0][0]) - - // Length - writeLength(stream, length) - - // Message ID - writeNumber(stream, id) - - // Unsubs - var result = true - for (var j = 0; j < unsubs.length; j++) { - result = writeString(stream, unsubs[j]) - } - - return result -} - -function emptyPacket (opts, stream) { - return stream.write(protocol.EMPTY[opts.cmd]) -} - -/** - * calcLengthLength - calculate the length of the remaining - * length field - * - * @api private - */ -function calcLengthLength (length) { - if (length >= 0 && length < 128) return 1 - else if (length >= 128 && length < 16384) return 2 - else if (length >= 16384 && length < 2097152) return 3 - else if (length >= 2097152 && length < 268435456) return 4 - else return 0 -} - -function genBufLength (length) { - var digit = 0 - var pos = 0 - var buffer = Buffer.allocUnsafe(calcLengthLength(length)) - - do { - digit = length % 128 | 0 - length = length / 128 | 0 - if (length > 0) digit = digit | 0x80 - - buffer.writeUInt8(digit, pos++) - } while (length > 0) - - return buffer -} - -/** - * writeLength - write an MQTT style length field to the buffer - * - * @param buffer - destination - * @param pos - offset - * @param length - length (>0) - * @returns number of bytes written - * - * @api private - */ - -var lengthCache = {} -function writeLength (stream, length) { - var buffer = lengthCache[length] - - if (!buffer) { - buffer = genBufLength(length) - if (length < 16384) lengthCache[length] = buffer - } - - stream.write(buffer) -} - -/** - * writeString - write a utf8 string to the buffer - * - * @param buffer - destination - * @param pos - offset - * @param string - string to write - * @return number of bytes written - * - * @api private - */ - -function writeString (stream, string) { - var strlen = Buffer.byteLength(string) - writeNumber(stream, strlen) - - stream.write(string, 'utf8') -} - -/** - * writeNumber - write a two byte number to the buffer - * - * @param buffer - destination - * @param pos - offset - * @param number - number to write - * @return number of bytes written - * - * @api private - */ -function writeNumberCached (stream, number) { - return stream.write(numCache[number]) -} -function writeNumberGenerated (stream, number) { - return stream.write(generateNumber(number)) -} - -/** - * writeStringOrBuffer - write a String or Buffer with the its length prefix - * - * @param buffer - destination - * @param pos - offset - * @param toWrite - String or Buffer - * @return number of bytes written - */ -function writeStringOrBuffer (stream, toWrite) { - if (typeof toWrite === 'string') { - writeString(stream, toWrite) - } else if (toWrite) { - writeNumber(stream, toWrite.length) - stream.write(toWrite) - } else writeNumber(stream, 0) -} - -function byteLength (bufOrString) { - if (!bufOrString) return 0 - else if (bufOrString instanceof Buffer) return bufOrString.length - else return Buffer.byteLength(bufOrString) -} - -function isStringOrBuffer (field) { - return typeof field === 'string' || field instanceof Buffer -} - -module.exports = generate - -},{"./constants":21,"./numbers":24,"process-nextick-args":29,"safe-buffer":46}],28:[function(require,module,exports){ -var wrappy = require('wrappy') -module.exports = wrappy(once) -module.exports.strict = wrappy(onceStrict) - -once.proto = once(function () { - Object.defineProperty(Function.prototype, 'once', { - value: function () { - return once(this) - }, - configurable: true - }) - - Object.defineProperty(Function.prototype, 'onceStrict', { - value: function () { - return onceStrict(this) - }, - configurable: true - }) -}) - -function once (fn) { - var f = function () { - if (f.called) return f.value - f.called = true - return f.value = fn.apply(this, arguments) - } - f.called = false - return f -} - -function onceStrict (fn) { - var f = function () { - if (f.called) - throw new Error(f.onceError) - f.called = true - return f.value = fn.apply(this, arguments) - } - var name = fn.name || 'Function wrapped with `once`' - f.onceError = name + " shouldn't be called more than once" - f.called = false - return f -} - -},{"wrappy":57}],29:[function(require,module,exports){ -(function (process){ -'use strict'; - -if (!process.version || - process.version.indexOf('v0.') === 0 || - process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) { - module.exports = { nextTick: nextTick }; -} else { - module.exports = process -} - -function nextTick(fn, arg1, arg2, arg3) { - if (typeof fn !== 'function') { - throw new TypeError('"callback" argument must be a function'); - } - var len = arguments.length; - var args, i; - switch (len) { - case 0: - case 1: - return process.nextTick(fn); - case 2: - return process.nextTick(function afterTickOne() { - fn.call(null, arg1); - }); - case 3: - return process.nextTick(function afterTickTwo() { - fn.call(null, arg1, arg2); - }); - case 4: - return process.nextTick(function afterTickThree() { - fn.call(null, arg1, arg2, arg3); - }); - default: - args = new Array(len - 1); - i = 0; - while (i < args.length) { - args[i++] = arguments[i]; - } - return process.nextTick(function afterTick() { - fn.apply(null, args); - }); - } -} - - -}).call(this,require('_process')) -},{"_process":30}],30:[function(require,module,exports){ -// shim for using process in browser -var process = module.exports = {}; - -// cached from whatever global is present so that test runners that stub it -// don't break things. But we need to wrap it in a try catch in case it is -// wrapped in strict mode code which doesn't define any globals. It's inside a -// function because try/catches deoptimize in certain engines. - -var cachedSetTimeout; -var cachedClearTimeout; - -function defaultSetTimout() { - throw new Error('setTimeout has not been defined'); -} -function defaultClearTimeout () { - throw new Error('clearTimeout has not been defined'); -} -(function () { - try { - if (typeof setTimeout === 'function') { - cachedSetTimeout = setTimeout; - } else { - cachedSetTimeout = defaultSetTimout; - } - } catch (e) { - cachedSetTimeout = defaultSetTimout; - } - try { - if (typeof clearTimeout === 'function') { - cachedClearTimeout = clearTimeout; - } else { - cachedClearTimeout = defaultClearTimeout; - } - } catch (e) { - cachedClearTimeout = defaultClearTimeout; - } -} ()) -function runTimeout(fun) { - if (cachedSetTimeout === setTimeout) { - //normal enviroments in sane situations - return setTimeout(fun, 0); - } - // if setTimeout wasn't available but was latter defined - if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) { - cachedSetTimeout = setTimeout; - return setTimeout(fun, 0); - } - try { - // when when somebody has screwed with setTimeout but no I.E. maddness - return cachedSetTimeout(fun, 0); - } catch(e){ - try { - // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally - return cachedSetTimeout.call(null, fun, 0); - } catch(e){ - // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error - return cachedSetTimeout.call(this, fun, 0); - } - } - - -} -function runClearTimeout(marker) { - if (cachedClearTimeout === clearTimeout) { - //normal enviroments in sane situations - return clearTimeout(marker); - } - // if clearTimeout wasn't available but was latter defined - if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) { - cachedClearTimeout = clearTimeout; - return clearTimeout(marker); - } - try { - // when when somebody has screwed with setTimeout but no I.E. maddness - return cachedClearTimeout(marker); - } catch (e){ - try { - // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally - return cachedClearTimeout.call(null, marker); - } catch (e){ - // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error. - // Some versions of I.E. have different rules for clearTimeout vs setTimeout - return cachedClearTimeout.call(this, marker); - } - } - - - -} -var queue = []; -var draining = false; -var currentQueue; -var queueIndex = -1; - -function cleanUpNextTick() { - if (!draining || !currentQueue) { - return; - } - draining = false; - if (currentQueue.length) { - queue = currentQueue.concat(queue); - } else { - queueIndex = -1; - } - if (queue.length) { - drainQueue(); - } -} - -function drainQueue() { - if (draining) { - return; - } - var timeout = runTimeout(cleanUpNextTick); - draining = true; - - var len = queue.length; - while(len) { - currentQueue = queue; - queue = []; - while (++queueIndex < len) { - if (currentQueue) { - currentQueue[queueIndex].run(); - } - } - queueIndex = -1; - len = queue.length; - } - currentQueue = null; - draining = false; - runClearTimeout(timeout); -} - -process.nextTick = function (fun) { - var args = new Array(arguments.length - 1); - if (arguments.length > 1) { - for (var i = 1; i < arguments.length; i++) { - args[i - 1] = arguments[i]; - } - } - queue.push(new Item(fun, args)); - if (queue.length === 1 && !draining) { - runTimeout(drainQueue); - } -}; - -// v8 likes predictible objects -function Item(fun, array) { - this.fun = fun; - this.array = array; -} -Item.prototype.run = function () { - this.fun.apply(null, this.array); -}; -process.title = 'browser'; -process.browser = true; -process.env = {}; -process.argv = []; -process.version = ''; // empty string to avoid regexp issues -process.versions = {}; - -function noop() {} - -process.on = noop; -process.addListener = noop; -process.once = noop; -process.off = noop; -process.removeListener = noop; -process.removeAllListeners = noop; -process.emit = noop; -process.prependListener = noop; -process.prependOnceListener = noop; - -process.listeners = function (name) { return [] } - -process.binding = function (name) { - throw new Error('process.binding is not supported'); -}; - -process.cwd = function () { return '/' }; -process.chdir = function (dir) { - throw new Error('process.chdir is not supported'); -}; -process.umask = function() { return 0; }; - -},{}],31:[function(require,module,exports){ -(function (global){ -/*! https://mths.be/punycode v1.4.1 by @mathias */ -;(function(root) { - - /** Detect free variables */ - var freeExports = typeof exports == 'object' && exports && - !exports.nodeType && exports; - var freeModule = typeof module == 'object' && module && - !module.nodeType && module; - var freeGlobal = typeof global == 'object' && global; - if ( - freeGlobal.global === freeGlobal || - freeGlobal.window === freeGlobal || - freeGlobal.self === freeGlobal - ) { - root = freeGlobal; - } - - /** - * The `punycode` object. - * @name punycode - * @type Object - */ - var punycode, - - /** Highest positive signed 32-bit float value */ - maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1 - - /** Bootstring parameters */ - base = 36, - tMin = 1, - tMax = 26, - skew = 38, - damp = 700, - initialBias = 72, - initialN = 128, // 0x80 - delimiter = '-', // '\x2D' - - /** Regular expressions */ - regexPunycode = /^xn--/, - regexNonASCII = /[^\x20-\x7E]/, // unprintable ASCII chars + non-ASCII chars - regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g, // RFC 3490 separators - - /** Error messages */ - errors = { - 'overflow': 'Overflow: input needs wider integers to process', - 'not-basic': 'Illegal input >= 0x80 (not a basic code point)', - 'invalid-input': 'Invalid input' - }, - - /** Convenience shortcuts */ - baseMinusTMin = base - tMin, - floor = Math.floor, - stringFromCharCode = String.fromCharCode, - - /** Temporary variable */ - key; - - /*--------------------------------------------------------------------------*/ - - /** - * A generic error utility function. - * @private - * @param {String} type The error type. - * @returns {Error} Throws a `RangeError` with the applicable error message. - */ - function error(type) { - throw new RangeError(errors[type]); - } - - /** - * A generic `Array#map` utility function. - * @private - * @param {Array} array The array to iterate over. - * @param {Function} callback The function that gets called for every array - * item. - * @returns {Array} A new array of values returned by the callback function. - */ - function map(array, fn) { - var length = array.length; - var result = []; - while (length--) { - result[length] = fn(array[length]); - } - return result; - } - - /** - * A simple `Array#map`-like wrapper to work with domain name strings or email - * addresses. - * @private - * @param {String} domain The domain name or email address. - * @param {Function} callback The function that gets called for every - * character. - * @returns {Array} A new string of characters returned by the callback - * function. - */ - function mapDomain(string, fn) { - var parts = string.split('@'); - var result = ''; - if (parts.length > 1) { - // In email addresses, only the domain name should be punycoded. Leave - // the local part (i.e. everything up to `@`) intact. - result = parts[0] + '@'; - string = parts[1]; - } - // Avoid `split(regex)` for IE8 compatibility. See #17. - string = string.replace(regexSeparators, '\x2E'); - var labels = string.split('.'); - var encoded = map(labels, fn).join('.'); - return result + encoded; - } - - /** - * Creates an array containing the numeric code points of each Unicode - * character in the string. While JavaScript uses UCS-2 internally, - * this function will convert a pair of surrogate halves (each of which - * UCS-2 exposes as separate characters) into a single code point, - * matching UTF-16. - * @see `punycode.ucs2.encode` - * @see - * @memberOf punycode.ucs2 - * @name decode - * @param {String} string The Unicode input string (UCS-2). - * @returns {Array} The new array of code points. - */ - function ucs2decode(string) { - var output = [], - counter = 0, - length = string.length, - value, - extra; - while (counter < length) { - value = string.charCodeAt(counter++); - if (value >= 0xD800 && value <= 0xDBFF && counter < length) { - // high surrogate, and there is a next character - extra = string.charCodeAt(counter++); - if ((extra & 0xFC00) == 0xDC00) { // low surrogate - output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000); - } else { - // unmatched surrogate; only append this code unit, in case the next - // code unit is the high surrogate of a surrogate pair - output.push(value); - counter--; - } - } else { - output.push(value); - } - } - return output; - } - - /** - * Creates a string based on an array of numeric code points. - * @see `punycode.ucs2.decode` - * @memberOf punycode.ucs2 - * @name encode - * @param {Array} codePoints The array of numeric code points. - * @returns {String} The new Unicode string (UCS-2). - */ - function ucs2encode(array) { - return map(array, function(value) { - var output = ''; - if (value > 0xFFFF) { - value -= 0x10000; - output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800); - value = 0xDC00 | value & 0x3FF; - } - output += stringFromCharCode(value); - return output; - }).join(''); - } - - /** - * Converts a basic code point into a digit/integer. - * @see `digitToBasic()` - * @private - * @param {Number} codePoint The basic numeric code point value. - * @returns {Number} The numeric value of a basic code point (for use in - * representing integers) in the range `0` to `base - 1`, or `base` if - * the code point does not represent a value. - */ - function basicToDigit(codePoint) { - if (codePoint - 48 < 10) { - return codePoint - 22; - } - if (codePoint - 65 < 26) { - return codePoint - 65; - } - if (codePoint - 97 < 26) { - return codePoint - 97; - } - return base; - } - - /** - * Converts a digit/integer into a basic code point. - * @see `basicToDigit()` - * @private - * @param {Number} digit The numeric value of a basic code point. - * @returns {Number} The basic code point whose value (when used for - * representing integers) is `digit`, which needs to be in the range - * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is - * used; else, the lowercase form is used. The behavior is undefined - * if `flag` is non-zero and `digit` has no uppercase form. - */ - function digitToBasic(digit, flag) { - // 0..25 map to ASCII a..z or A..Z - // 26..35 map to ASCII 0..9 - return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5); - } - - /** - * Bias adaptation function as per section 3.4 of RFC 3492. - * https://tools.ietf.org/html/rfc3492#section-3.4 - * @private - */ - function adapt(delta, numPoints, firstTime) { - var k = 0; - delta = firstTime ? floor(delta / damp) : delta >> 1; - delta += floor(delta / numPoints); - for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) { - delta = floor(delta / baseMinusTMin); - } - return floor(k + (baseMinusTMin + 1) * delta / (delta + skew)); - } - - /** - * Converts a Punycode string of ASCII-only symbols to a string of Unicode - * symbols. - * @memberOf punycode - * @param {String} input The Punycode string of ASCII-only symbols. - * @returns {String} The resulting string of Unicode symbols. - */ - function decode(input) { - // Don't use UCS-2 - var output = [], - inputLength = input.length, - out, - i = 0, - n = initialN, - bias = initialBias, - basic, - j, - index, - oldi, - w, - k, - digit, - t, - /** Cached calculation results */ - baseMinusT; - - // Handle the basic code points: let `basic` be the number of input code - // points before the last delimiter, or `0` if there is none, then copy - // the first basic code points to the output. - - basic = input.lastIndexOf(delimiter); - if (basic < 0) { - basic = 0; - } - - for (j = 0; j < basic; ++j) { - // if it's not a basic code point - if (input.charCodeAt(j) >= 0x80) { - error('not-basic'); - } - output.push(input.charCodeAt(j)); - } - - // Main decoding loop: start just after the last delimiter if any basic code - // points were copied; start at the beginning otherwise. - - for (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) { - - // `index` is the index of the next character to be consumed. - // Decode a generalized variable-length integer into `delta`, - // which gets added to `i`. The overflow checking is easier - // if we increase `i` as we go, then subtract off its starting - // value at the end to obtain `delta`. - for (oldi = i, w = 1, k = base; /* no condition */; k += base) { - - if (index >= inputLength) { - error('invalid-input'); - } - - digit = basicToDigit(input.charCodeAt(index++)); - - if (digit >= base || digit > floor((maxInt - i) / w)) { - error('overflow'); - } - - i += digit * w; - t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias); - - if (digit < t) { - break; - } - - baseMinusT = base - t; - if (w > floor(maxInt / baseMinusT)) { - error('overflow'); - } - - w *= baseMinusT; - - } - - out = output.length + 1; - bias = adapt(i - oldi, out, oldi == 0); - - // `i` was supposed to wrap around from `out` to `0`, - // incrementing `n` each time, so we'll fix that now: - if (floor(i / out) > maxInt - n) { - error('overflow'); - } - - n += floor(i / out); - i %= out; - - // Insert `n` at position `i` of the output - output.splice(i++, 0, n); - - } - - return ucs2encode(output); - } - - /** - * Converts a string of Unicode symbols (e.g. a domain name label) to a - * Punycode string of ASCII-only symbols. - * @memberOf punycode - * @param {String} input The string of Unicode symbols. - * @returns {String} The resulting Punycode string of ASCII-only symbols. - */ - function encode(input) { - var n, - delta, - handledCPCount, - basicLength, - bias, - j, - m, - q, - k, - t, - currentValue, - output = [], - /** `inputLength` will hold the number of code points in `input`. */ - inputLength, - /** Cached calculation results */ - handledCPCountPlusOne, - baseMinusT, - qMinusT; - - // Convert the input in UCS-2 to Unicode - input = ucs2decode(input); - - // Cache the length - inputLength = input.length; - - // Initialize the state - n = initialN; - delta = 0; - bias = initialBias; - - // Handle the basic code points - for (j = 0; j < inputLength; ++j) { - currentValue = input[j]; - if (currentValue < 0x80) { - output.push(stringFromCharCode(currentValue)); - } - } - - handledCPCount = basicLength = output.length; - - // `handledCPCount` is the number of code points that have been handled; - // `basicLength` is the number of basic code points. - - // Finish the basic string - if it is not empty - with a delimiter - if (basicLength) { - output.push(delimiter); - } - - // Main encoding loop: - while (handledCPCount < inputLength) { - - // All non-basic code points < n have been handled already. Find the next - // larger one: - for (m = maxInt, j = 0; j < inputLength; ++j) { - currentValue = input[j]; - if (currentValue >= n && currentValue < m) { - m = currentValue; - } - } - - // Increase `delta` enough to advance the decoder's state to , - // but guard against overflow - handledCPCountPlusOne = handledCPCount + 1; - if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) { - error('overflow'); - } - - delta += (m - n) * handledCPCountPlusOne; - n = m; - - for (j = 0; j < inputLength; ++j) { - currentValue = input[j]; - - if (currentValue < n && ++delta > maxInt) { - error('overflow'); - } - - if (currentValue == n) { - // Represent delta as a generalized variable-length integer - for (q = delta, k = base; /* no condition */; k += base) { - t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias); - if (q < t) { - break; - } - qMinusT = q - t; - baseMinusT = base - t; - output.push( - stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0)) - ); - q = floor(qMinusT / baseMinusT); - } - - output.push(stringFromCharCode(digitToBasic(q, 0))); - bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength); - delta = 0; - ++handledCPCount; - } - } - - ++delta; - ++n; - - } - return output.join(''); - } - - /** - * Converts a Punycode string representing a domain name or an email address - * to Unicode. Only the Punycoded parts of the input will be converted, i.e. - * it doesn't matter if you call it on a string that has already been - * converted to Unicode. - * @memberOf punycode - * @param {String} input The Punycoded domain name or email address to - * convert to Unicode. - * @returns {String} The Unicode representation of the given Punycode - * string. - */ - function toUnicode(input) { - return mapDomain(input, function(string) { - return regexPunycode.test(string) - ? decode(string.slice(4).toLowerCase()) - : string; - }); - } - - /** - * Converts a Unicode string representing a domain name or an email address to - * Punycode. Only the non-ASCII parts of the domain name will be converted, - * i.e. it doesn't matter if you call it with a domain that's already in - * ASCII. - * @memberOf punycode - * @param {String} input The domain name or email address to convert, as a - * Unicode string. - * @returns {String} The Punycode representation of the given domain name or - * email address. - */ - function toASCII(input) { - return mapDomain(input, function(string) { - return regexNonASCII.test(string) - ? 'xn--' + encode(string) - : string; - }); - } - - /*--------------------------------------------------------------------------*/ - - /** Define the public API */ - punycode = { - /** - * A string representing the current Punycode.js version number. - * @memberOf punycode - * @type String - */ - 'version': '1.4.1', - /** - * An object of methods to convert from JavaScript's internal character - * representation (UCS-2) to Unicode code points, and back. - * @see - * @memberOf punycode - * @type Object - */ - 'ucs2': { - 'decode': ucs2decode, - 'encode': ucs2encode - }, - 'decode': decode, - 'encode': encode, - 'toASCII': toASCII, - 'toUnicode': toUnicode - }; - - /** Expose `punycode` */ - // Some AMD build optimizers, like r.js, check for specific condition patterns - // like the following: - if ( - typeof define == 'function' && - typeof define.amd == 'object' && - define.amd - ) { - define('punycode', function() { - return punycode; - }); - } else if (freeExports && freeModule) { - if (module.exports == freeExports) { - // in Node.js, io.js, or RingoJS v0.8.0+ - freeModule.exports = punycode; - } else { - // in Narwhal or RingoJS v0.7.0- - for (key in punycode) { - punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]); - } - } - } else { - // in Rhino or a web browser - root.punycode = punycode; - } - -}(this)); - -}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{}],32:[function(require,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -'use strict'; - -// If obj.hasOwnProperty has been overridden, then calling -// obj.hasOwnProperty(prop) will break. -// See: https://github.com/joyent/node/issues/1707 -function hasOwnProperty(obj, prop) { - return Object.prototype.hasOwnProperty.call(obj, prop); -} - -module.exports = function(qs, sep, eq, options) { - sep = sep || '&'; - eq = eq || '='; - var obj = {}; - - if (typeof qs !== 'string' || qs.length === 0) { - return obj; - } - - var regexp = /\+/g; - qs = qs.split(sep); - - var maxKeys = 1000; - if (options && typeof options.maxKeys === 'number') { - maxKeys = options.maxKeys; - } - - var len = qs.length; - // maxKeys <= 0 means that we should not limit keys count - if (maxKeys > 0 && len > maxKeys) { - len = maxKeys; - } - - for (var i = 0; i < len; ++i) { - var x = qs[i].replace(regexp, '%20'), - idx = x.indexOf(eq), - kstr, vstr, k, v; - - if (idx >= 0) { - kstr = x.substr(0, idx); - vstr = x.substr(idx + 1); - } else { - kstr = x; - vstr = ''; - } - - k = decodeURIComponent(kstr); - v = decodeURIComponent(vstr); - - if (!hasOwnProperty(obj, k)) { - obj[k] = v; - } else if (isArray(obj[k])) { - obj[k].push(v); - } else { - obj[k] = [obj[k], v]; - } - } - - return obj; -}; - -var isArray = Array.isArray || function (xs) { - return Object.prototype.toString.call(xs) === '[object Array]'; -}; - -},{}],33:[function(require,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -'use strict'; - -var stringifyPrimitive = function(v) { - switch (typeof v) { - case 'string': - return v; - - case 'boolean': - return v ? 'true' : 'false'; - - case 'number': - return isFinite(v) ? v : ''; - - default: - return ''; - } -}; - -module.exports = function(obj, sep, eq, name) { - sep = sep || '&'; - eq = eq || '='; - if (obj === null) { - obj = undefined; - } - - if (typeof obj === 'object') { - return map(objectKeys(obj), function(k) { - var ks = encodeURIComponent(stringifyPrimitive(k)) + eq; - if (isArray(obj[k])) { - return map(obj[k], function(v) { - return ks + encodeURIComponent(stringifyPrimitive(v)); - }).join(sep); - } else { - return ks + encodeURIComponent(stringifyPrimitive(obj[k])); - } - }).join(sep); - - } - - if (!name) return ''; - return encodeURIComponent(stringifyPrimitive(name)) + eq + - encodeURIComponent(stringifyPrimitive(obj)); -}; - -var isArray = Array.isArray || function (xs) { - return Object.prototype.toString.call(xs) === '[object Array]'; -}; - -function map (xs, f) { - if (xs.map) return xs.map(f); - var res = []; - for (var i = 0; i < xs.length; i++) { - res.push(f(xs[i], i)); - } - return res; -} - -var objectKeys = Object.keys || function (obj) { - var res = []; - for (var key in obj) { - if (Object.prototype.hasOwnProperty.call(obj, key)) res.push(key); - } - return res; -}; - -},{}],34:[function(require,module,exports){ -'use strict'; - -exports.decode = exports.parse = require('./decode'); -exports.encode = exports.stringify = require('./encode'); - -},{"./decode":32,"./encode":33}],35:[function(require,module,exports){ -module.exports = require('./lib/_stream_duplex.js'); - -},{"./lib/_stream_duplex.js":36}],36:[function(require,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// a duplex stream is just a stream that is both readable and writable. -// Since JS doesn't have multiple prototypal inheritance, this class -// prototypally inherits from Readable, and then parasitically from -// Writable. - -'use strict'; - -/**/ - -var pna = require('process-nextick-args'); -/**/ - -/**/ -var objectKeys = Object.keys || function (obj) { - var keys = []; - for (var key in obj) { - keys.push(key); - }return keys; -}; -/**/ - -module.exports = Duplex; - -/**/ -var util = require('core-util-is'); -util.inherits = require('inherits'); -/**/ - -var Readable = require('./_stream_readable'); -var Writable = require('./_stream_writable'); - -util.inherits(Duplex, Readable); - -{ - // avoid scope creep, the keys array can then be collected - var keys = objectKeys(Writable.prototype); - for (var v = 0; v < keys.length; v++) { - var method = keys[v]; - if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method]; - } -} - -function Duplex(options) { - if (!(this instanceof Duplex)) return new Duplex(options); - - Readable.call(this, options); - Writable.call(this, options); - - if (options && options.readable === false) this.readable = false; - - if (options && options.writable === false) this.writable = false; - - this.allowHalfOpen = true; - if (options && options.allowHalfOpen === false) this.allowHalfOpen = false; - - this.once('end', onend); -} - -Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', { - // making it explicit this property is not enumerable - // because otherwise some prototype manipulation in - // userland will fail - enumerable: false, - get: function () { - return this._writableState.highWaterMark; - } -}); - -// the no-half-open enforcer -function onend() { - // if we allow half-open state, or if the writable side ended, - // then we're ok. - if (this.allowHalfOpen || this._writableState.ended) return; - - // no more data can be written. - // But allow more writes to happen in this tick. - pna.nextTick(onEndNT, this); -} - -function onEndNT(self) { - self.end(); -} - -Object.defineProperty(Duplex.prototype, 'destroyed', { - get: function () { - if (this._readableState === undefined || this._writableState === undefined) { - return false; - } - return this._readableState.destroyed && this._writableState.destroyed; - }, - set: function (value) { - // we ignore the value if the stream - // has not been initialized yet - if (this._readableState === undefined || this._writableState === undefined) { - return; - } - - // backward compatibility, the user is explicitly - // managing destroyed - this._readableState.destroyed = value; - this._writableState.destroyed = value; - } -}); - -Duplex.prototype._destroy = function (err, cb) { - this.push(null); - this.end(); - - pna.nextTick(cb, err); -}; -},{"./_stream_readable":38,"./_stream_writable":40,"core-util-is":13,"inherits":18,"process-nextick-args":29}],37:[function(require,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// a passthrough stream. -// basically just the most minimal sort of Transform stream. -// Every written chunk gets output as-is. - -'use strict'; - -module.exports = PassThrough; - -var Transform = require('./_stream_transform'); - -/**/ -var util = require('core-util-is'); -util.inherits = require('inherits'); -/**/ - -util.inherits(PassThrough, Transform); - -function PassThrough(options) { - if (!(this instanceof PassThrough)) return new PassThrough(options); - - Transform.call(this, options); -} - -PassThrough.prototype._transform = function (chunk, encoding, cb) { - cb(null, chunk); -}; -},{"./_stream_transform":39,"core-util-is":13,"inherits":18}],38:[function(require,module,exports){ -(function (process,global){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -'use strict'; - -/**/ - -var pna = require('process-nextick-args'); -/**/ - -module.exports = Readable; - -/**/ -var isArray = require('isarray'); -/**/ - -/**/ -var Duplex; -/**/ - -Readable.ReadableState = ReadableState; - -/**/ -var EE = require('events').EventEmitter; - -var EElistenerCount = function (emitter, type) { - return emitter.listeners(type).length; -}; -/**/ - -/**/ -var Stream = require('./internal/streams/stream'); -/**/ - -/**/ - -var Buffer = require('safe-buffer').Buffer; -var OurUint8Array = global.Uint8Array || function () {}; -function _uint8ArrayToBuffer(chunk) { - return Buffer.from(chunk); -} -function _isUint8Array(obj) { - return Buffer.isBuffer(obj) || obj instanceof OurUint8Array; -} - -/**/ - -/**/ -var util = require('core-util-is'); -util.inherits = require('inherits'); -/**/ - -/**/ -var debugUtil = require('util'); -var debug = void 0; -if (debugUtil && debugUtil.debuglog) { - debug = debugUtil.debuglog('stream'); -} else { - debug = function () {}; -} -/**/ - -var BufferList = require('./internal/streams/BufferList'); -var destroyImpl = require('./internal/streams/destroy'); -var StringDecoder; - -util.inherits(Readable, Stream); - -var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume']; - -function prependListener(emitter, event, fn) { - // Sadly this is not cacheable as some libraries bundle their own - // event emitter implementation with them. - if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn); - - // This is a hack to make sure that our error handler is attached before any - // userland ones. NEVER DO THIS. This is here only because this code needs - // to continue to work with older versions of Node.js that do not include - // the prependListener() method. The goal is to eventually remove this hack. - if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]]; -} - -function ReadableState(options, stream) { - Duplex = Duplex || require('./_stream_duplex'); - - options = options || {}; - - // Duplex streams are both readable and writable, but share - // the same options object. - // However, some cases require setting options to different - // values for the readable and the writable sides of the duplex stream. - // These options can be provided separately as readableXXX and writableXXX. - var isDuplex = stream instanceof Duplex; - - // object stream flag. Used to make read(n) ignore n and to - // make all the buffer merging and length checks go away - this.objectMode = !!options.objectMode; - - if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode; - - // the point at which it stops calling _read() to fill the buffer - // Note: 0 is a valid value, means "don't call _read preemptively ever" - var hwm = options.highWaterMark; - var readableHwm = options.readableHighWaterMark; - var defaultHwm = this.objectMode ? 16 : 16 * 1024; - - if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm; - - // cast to ints. - this.highWaterMark = Math.floor(this.highWaterMark); - - // A linked list is used to store data chunks instead of an array because the - // linked list can remove elements from the beginning faster than - // array.shift() - this.buffer = new BufferList(); - this.length = 0; - this.pipes = null; - this.pipesCount = 0; - this.flowing = null; - this.ended = false; - this.endEmitted = false; - this.reading = false; - - // a flag to be able to tell if the event 'readable'/'data' is emitted - // immediately, or on a later tick. We set this to true at first, because - // any actions that shouldn't happen until "later" should generally also - // not happen before the first read call. - this.sync = true; - - // whenever we return null, then we set a flag to say - // that we're awaiting a 'readable' event emission. - this.needReadable = false; - this.emittedReadable = false; - this.readableListening = false; - this.resumeScheduled = false; - - // has it been destroyed - this.destroyed = false; - - // Crypto is kind of old and crusty. Historically, its default string - // encoding is 'binary' so we have to make this configurable. - // Everything else in the universe uses 'utf8', though. - this.defaultEncoding = options.defaultEncoding || 'utf8'; - - // the number of writers that are awaiting a drain event in .pipe()s - this.awaitDrain = 0; - - // if true, a maybeReadMore has been scheduled - this.readingMore = false; - - this.decoder = null; - this.encoding = null; - if (options.encoding) { - if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder; - this.decoder = new StringDecoder(options.encoding); - this.encoding = options.encoding; - } -} - -function Readable(options) { - Duplex = Duplex || require('./_stream_duplex'); - - if (!(this instanceof Readable)) return new Readable(options); - - this._readableState = new ReadableState(options, this); - - // legacy - this.readable = true; - - if (options) { - if (typeof options.read === 'function') this._read = options.read; - - if (typeof options.destroy === 'function') this._destroy = options.destroy; - } - - Stream.call(this); -} - -Object.defineProperty(Readable.prototype, 'destroyed', { - get: function () { - if (this._readableState === undefined) { - return false; - } - return this._readableState.destroyed; - }, - set: function (value) { - // we ignore the value if the stream - // has not been initialized yet - if (!this._readableState) { - return; - } - - // backward compatibility, the user is explicitly - // managing destroyed - this._readableState.destroyed = value; - } -}); - -Readable.prototype.destroy = destroyImpl.destroy; -Readable.prototype._undestroy = destroyImpl.undestroy; -Readable.prototype._destroy = function (err, cb) { - this.push(null); - cb(err); -}; - -// Manually shove something into the read() buffer. -// This returns true if the highWaterMark has not been hit yet, -// similar to how Writable.write() returns true if you should -// write() some more. -Readable.prototype.push = function (chunk, encoding) { - var state = this._readableState; - var skipChunkCheck; - - if (!state.objectMode) { - if (typeof chunk === 'string') { - encoding = encoding || state.defaultEncoding; - if (encoding !== state.encoding) { - chunk = Buffer.from(chunk, encoding); - encoding = ''; - } - skipChunkCheck = true; - } - } else { - skipChunkCheck = true; - } - - return readableAddChunk(this, chunk, encoding, false, skipChunkCheck); -}; - -// Unshift should *always* be something directly out of read() -Readable.prototype.unshift = function (chunk) { - return readableAddChunk(this, chunk, null, true, false); -}; - -function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) { - var state = stream._readableState; - if (chunk === null) { - state.reading = false; - onEofChunk(stream, state); - } else { - var er; - if (!skipChunkCheck) er = chunkInvalid(state, chunk); - if (er) { - stream.emit('error', er); - } else if (state.objectMode || chunk && chunk.length > 0) { - if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) { - chunk = _uint8ArrayToBuffer(chunk); - } - - if (addToFront) { - if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true); - } else if (state.ended) { - stream.emit('error', new Error('stream.push() after EOF')); - } else { - state.reading = false; - if (state.decoder && !encoding) { - chunk = state.decoder.write(chunk); - if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state); - } else { - addChunk(stream, state, chunk, false); - } - } - } else if (!addToFront) { - state.reading = false; - } - } - - return needMoreData(state); -} - -function addChunk(stream, state, chunk, addToFront) { - if (state.flowing && state.length === 0 && !state.sync) { - stream.emit('data', chunk); - stream.read(0); - } else { - // update the buffer info. - state.length += state.objectMode ? 1 : chunk.length; - if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk); - - if (state.needReadable) emitReadable(stream); - } - maybeReadMore(stream, state); -} - -function chunkInvalid(state, chunk) { - var er; - if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) { - er = new TypeError('Invalid non-string/buffer chunk'); - } - return er; -} - -// if it's past the high water mark, we can push in some more. -// Also, if we have no data yet, we can stand some -// more bytes. This is to work around cases where hwm=0, -// such as the repl. Also, if the push() triggered a -// readable event, and the user called read(largeNumber) such that -// needReadable was set, then we ought to push more, so that another -// 'readable' event will be triggered. -function needMoreData(state) { - return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0); -} - -Readable.prototype.isPaused = function () { - return this._readableState.flowing === false; -}; - -// backwards compatibility. -Readable.prototype.setEncoding = function (enc) { - if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder; - this._readableState.decoder = new StringDecoder(enc); - this._readableState.encoding = enc; - return this; -}; - -// Don't raise the hwm > 8MB -var MAX_HWM = 0x800000; -function computeNewHighWaterMark(n) { - if (n >= MAX_HWM) { - n = MAX_HWM; - } else { - // Get the next highest power of 2 to prevent increasing hwm excessively in - // tiny amounts - n--; - n |= n >>> 1; - n |= n >>> 2; - n |= n >>> 4; - n |= n >>> 8; - n |= n >>> 16; - n++; - } - return n; -} - -// This function is designed to be inlinable, so please take care when making -// changes to the function body. -function howMuchToRead(n, state) { - if (n <= 0 || state.length === 0 && state.ended) return 0; - if (state.objectMode) return 1; - if (n !== n) { - // Only flow one buffer at a time - if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length; - } - // If we're asking for more than the current hwm, then raise the hwm. - if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n); - if (n <= state.length) return n; - // Don't have enough - if (!state.ended) { - state.needReadable = true; - return 0; - } - return state.length; -} - -// you can override either this method, or the async _read(n) below. -Readable.prototype.read = function (n) { - debug('read', n); - n = parseInt(n, 10); - var state = this._readableState; - var nOrig = n; - - if (n !== 0) state.emittedReadable = false; - - // if we're doing read(0) to trigger a readable event, but we - // already have a bunch of data in the buffer, then just trigger - // the 'readable' event and move on. - if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) { - debug('read: emitReadable', state.length, state.ended); - if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this); - return null; - } - - n = howMuchToRead(n, state); - - // if we've ended, and we're now clear, then finish it up. - if (n === 0 && state.ended) { - if (state.length === 0) endReadable(this); - return null; - } - - // All the actual chunk generation logic needs to be - // *below* the call to _read. The reason is that in certain - // synthetic stream cases, such as passthrough streams, _read - // may be a completely synchronous operation which may change - // the state of the read buffer, providing enough data when - // before there was *not* enough. - // - // So, the steps are: - // 1. Figure out what the state of things will be after we do - // a read from the buffer. - // - // 2. If that resulting state will trigger a _read, then call _read. - // Note that this may be asynchronous, or synchronous. Yes, it is - // deeply ugly to write APIs this way, but that still doesn't mean - // that the Readable class should behave improperly, as streams are - // designed to be sync/async agnostic. - // Take note if the _read call is sync or async (ie, if the read call - // has returned yet), so that we know whether or not it's safe to emit - // 'readable' etc. - // - // 3. Actually pull the requested chunks out of the buffer and return. - - // if we need a readable event, then we need to do some reading. - var doRead = state.needReadable; - debug('need readable', doRead); - - // if we currently have less than the highWaterMark, then also read some - if (state.length === 0 || state.length - n < state.highWaterMark) { - doRead = true; - debug('length less than watermark', doRead); - } - - // however, if we've ended, then there's no point, and if we're already - // reading, then it's unnecessary. - if (state.ended || state.reading) { - doRead = false; - debug('reading or ended', doRead); - } else if (doRead) { - debug('do read'); - state.reading = true; - state.sync = true; - // if the length is currently zero, then we *need* a readable event. - if (state.length === 0) state.needReadable = true; - // call internal read method - this._read(state.highWaterMark); - state.sync = false; - // If _read pushed data synchronously, then `reading` will be false, - // and we need to re-evaluate how much data we can return to the user. - if (!state.reading) n = howMuchToRead(nOrig, state); - } - - var ret; - if (n > 0) ret = fromList(n, state);else ret = null; - - if (ret === null) { - state.needReadable = true; - n = 0; - } else { - state.length -= n; - } - - if (state.length === 0) { - // If we have nothing in the buffer, then we want to know - // as soon as we *do* get something into the buffer. - if (!state.ended) state.needReadable = true; - - // If we tried to read() past the EOF, then emit end on the next tick. - if (nOrig !== n && state.ended) endReadable(this); - } - - if (ret !== null) this.emit('data', ret); - - return ret; -}; - -function onEofChunk(stream, state) { - if (state.ended) return; - if (state.decoder) { - var chunk = state.decoder.end(); - if (chunk && chunk.length) { - state.buffer.push(chunk); - state.length += state.objectMode ? 1 : chunk.length; - } - } - state.ended = true; - - // emit 'readable' now to make sure it gets picked up. - emitReadable(stream); -} - -// Don't emit readable right away in sync mode, because this can trigger -// another read() call => stack overflow. This way, it might trigger -// a nextTick recursion warning, but that's not so bad. -function emitReadable(stream) { - var state = stream._readableState; - state.needReadable = false; - if (!state.emittedReadable) { - debug('emitReadable', state.flowing); - state.emittedReadable = true; - if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream); - } -} - -function emitReadable_(stream) { - debug('emit readable'); - stream.emit('readable'); - flow(stream); -} - -// at this point, the user has presumably seen the 'readable' event, -// and called read() to consume some data. that may have triggered -// in turn another _read(n) call, in which case reading = true if -// it's in progress. -// However, if we're not ended, or reading, and the length < hwm, -// then go ahead and try to read some more preemptively. -function maybeReadMore(stream, state) { - if (!state.readingMore) { - state.readingMore = true; - pna.nextTick(maybeReadMore_, stream, state); - } -} - -function maybeReadMore_(stream, state) { - var len = state.length; - while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) { - debug('maybeReadMore read 0'); - stream.read(0); - if (len === state.length) - // didn't get any data, stop spinning. - break;else len = state.length; - } - state.readingMore = false; -} - -// abstract method. to be overridden in specific implementation classes. -// call cb(er, data) where data is <= n in length. -// for virtual (non-string, non-buffer) streams, "length" is somewhat -// arbitrary, and perhaps not very meaningful. -Readable.prototype._read = function (n) { - this.emit('error', new Error('_read() is not implemented')); -}; - -Readable.prototype.pipe = function (dest, pipeOpts) { - var src = this; - var state = this._readableState; - - switch (state.pipesCount) { - case 0: - state.pipes = dest; - break; - case 1: - state.pipes = [state.pipes, dest]; - break; - default: - state.pipes.push(dest); - break; - } - state.pipesCount += 1; - debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts); - - var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr; - - var endFn = doEnd ? onend : unpipe; - if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn); - - dest.on('unpipe', onunpipe); - function onunpipe(readable, unpipeInfo) { - debug('onunpipe'); - if (readable === src) { - if (unpipeInfo && unpipeInfo.hasUnpiped === false) { - unpipeInfo.hasUnpiped = true; - cleanup(); - } - } - } - - function onend() { - debug('onend'); - dest.end(); - } - - // when the dest drains, it reduces the awaitDrain counter - // on the source. This would be more elegant with a .once() - // handler in flow(), but adding and removing repeatedly is - // too slow. - var ondrain = pipeOnDrain(src); - dest.on('drain', ondrain); - - var cleanedUp = false; - function cleanup() { - debug('cleanup'); - // cleanup event handlers once the pipe is broken - dest.removeListener('close', onclose); - dest.removeListener('finish', onfinish); - dest.removeListener('drain', ondrain); - dest.removeListener('error', onerror); - dest.removeListener('unpipe', onunpipe); - src.removeListener('end', onend); - src.removeListener('end', unpipe); - src.removeListener('data', ondata); - - cleanedUp = true; - - // if the reader is waiting for a drain event from this - // specific writer, then it would cause it to never start - // flowing again. - // So, if this is awaiting a drain, then we just call it now. - // If we don't know, then assume that we are waiting for one. - if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain(); - } - - // If the user pushes more data while we're writing to dest then we'll end up - // in ondata again. However, we only want to increase awaitDrain once because - // dest will only emit one 'drain' event for the multiple writes. - // => Introduce a guard on increasing awaitDrain. - var increasedAwaitDrain = false; - src.on('data', ondata); - function ondata(chunk) { - debug('ondata'); - increasedAwaitDrain = false; - var ret = dest.write(chunk); - if (false === ret && !increasedAwaitDrain) { - // If the user unpiped during `dest.write()`, it is possible - // to get stuck in a permanently paused state if that write - // also returned false. - // => Check whether `dest` is still a piping destination. - if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) { - debug('false write response, pause', src._readableState.awaitDrain); - src._readableState.awaitDrain++; - increasedAwaitDrain = true; - } - src.pause(); - } - } - - // if the dest has an error, then stop piping into it. - // however, don't suppress the throwing behavior for this. - function onerror(er) { - debug('onerror', er); - unpipe(); - dest.removeListener('error', onerror); - if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er); - } - - // Make sure our error handler is attached before userland ones. - prependListener(dest, 'error', onerror); - - // Both close and finish should trigger unpipe, but only once. - function onclose() { - dest.removeListener('finish', onfinish); - unpipe(); - } - dest.once('close', onclose); - function onfinish() { - debug('onfinish'); - dest.removeListener('close', onclose); - unpipe(); - } - dest.once('finish', onfinish); - - function unpipe() { - debug('unpipe'); - src.unpipe(dest); - } - - // tell the dest that it's being piped to - dest.emit('pipe', src); - - // start the flow if it hasn't been started already. - if (!state.flowing) { - debug('pipe resume'); - src.resume(); - } - - return dest; -}; - -function pipeOnDrain(src) { - return function () { - var state = src._readableState; - debug('pipeOnDrain', state.awaitDrain); - if (state.awaitDrain) state.awaitDrain--; - if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) { - state.flowing = true; - flow(src); - } - }; -} - -Readable.prototype.unpipe = function (dest) { - var state = this._readableState; - var unpipeInfo = { hasUnpiped: false }; - - // if we're not piping anywhere, then do nothing. - if (state.pipesCount === 0) return this; - - // just one destination. most common case. - if (state.pipesCount === 1) { - // passed in one, but it's not the right one. - if (dest && dest !== state.pipes) return this; - - if (!dest) dest = state.pipes; - - // got a match. - state.pipes = null; - state.pipesCount = 0; - state.flowing = false; - if (dest) dest.emit('unpipe', this, unpipeInfo); - return this; - } - - // slow case. multiple pipe destinations. - - if (!dest) { - // remove all. - var dests = state.pipes; - var len = state.pipesCount; - state.pipes = null; - state.pipesCount = 0; - state.flowing = false; - - for (var i = 0; i < len; i++) { - dests[i].emit('unpipe', this, unpipeInfo); - }return this; - } - - // try to find the right one. - var index = indexOf(state.pipes, dest); - if (index === -1) return this; - - state.pipes.splice(index, 1); - state.pipesCount -= 1; - if (state.pipesCount === 1) state.pipes = state.pipes[0]; - - dest.emit('unpipe', this, unpipeInfo); - - return this; -}; - -// set up data events if they are asked for -// Ensure readable listeners eventually get something -Readable.prototype.on = function (ev, fn) { - var res = Stream.prototype.on.call(this, ev, fn); - - if (ev === 'data') { - // Start flowing on next tick if stream isn't explicitly paused - if (this._readableState.flowing !== false) this.resume(); - } else if (ev === 'readable') { - var state = this._readableState; - if (!state.endEmitted && !state.readableListening) { - state.readableListening = state.needReadable = true; - state.emittedReadable = false; - if (!state.reading) { - pna.nextTick(nReadingNextTick, this); - } else if (state.length) { - emitReadable(this); - } - } - } - - return res; -}; -Readable.prototype.addListener = Readable.prototype.on; - -function nReadingNextTick(self) { - debug('readable nexttick read 0'); - self.read(0); -} - -// pause() and resume() are remnants of the legacy readable stream API -// If the user uses them, then switch into old mode. -Readable.prototype.resume = function () { - var state = this._readableState; - if (!state.flowing) { - debug('resume'); - state.flowing = true; - resume(this, state); - } - return this; -}; - -function resume(stream, state) { - if (!state.resumeScheduled) { - state.resumeScheduled = true; - pna.nextTick(resume_, stream, state); - } -} - -function resume_(stream, state) { - if (!state.reading) { - debug('resume read 0'); - stream.read(0); - } - - state.resumeScheduled = false; - state.awaitDrain = 0; - stream.emit('resume'); - flow(stream); - if (state.flowing && !state.reading) stream.read(0); -} - -Readable.prototype.pause = function () { - debug('call pause flowing=%j', this._readableState.flowing); - if (false !== this._readableState.flowing) { - debug('pause'); - this._readableState.flowing = false; - this.emit('pause'); - } - return this; -}; - -function flow(stream) { - var state = stream._readableState; - debug('flow', state.flowing); - while (state.flowing && stream.read() !== null) {} -} - -// wrap an old-style stream as the async data source. -// This is *not* part of the readable stream interface. -// It is an ugly unfortunate mess of history. -Readable.prototype.wrap = function (stream) { - var _this = this; - - var state = this._readableState; - var paused = false; - - stream.on('end', function () { - debug('wrapped end'); - if (state.decoder && !state.ended) { - var chunk = state.decoder.end(); - if (chunk && chunk.length) _this.push(chunk); - } - - _this.push(null); - }); - - stream.on('data', function (chunk) { - debug('wrapped data'); - if (state.decoder) chunk = state.decoder.write(chunk); - - // don't skip over falsy values in objectMode - if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return; - - var ret = _this.push(chunk); - if (!ret) { - paused = true; - stream.pause(); - } - }); - - // proxy all the other methods. - // important when wrapping filters and duplexes. - for (var i in stream) { - if (this[i] === undefined && typeof stream[i] === 'function') { - this[i] = function (method) { - return function () { - return stream[method].apply(stream, arguments); - }; - }(i); - } - } - - // proxy certain important events. - for (var n = 0; n < kProxyEvents.length; n++) { - stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n])); - } - - // when we try to consume some more bytes, simply unpause the - // underlying stream. - this._read = function (n) { - debug('wrapped _read', n); - if (paused) { - paused = false; - stream.resume(); - } - }; - - return this; -}; - -Object.defineProperty(Readable.prototype, 'readableHighWaterMark', { - // making it explicit this property is not enumerable - // because otherwise some prototype manipulation in - // userland will fail - enumerable: false, - get: function () { - return this._readableState.highWaterMark; - } -}); - -// exposed for testing purposes only. -Readable._fromList = fromList; - -// Pluck off n bytes from an array of buffers. -// Length is the combined lengths of all the buffers in the list. -// This function is designed to be inlinable, so please take care when making -// changes to the function body. -function fromList(n, state) { - // nothing buffered - if (state.length === 0) return null; - - var ret; - if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) { - // read it all, truncate the list - if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length); - state.buffer.clear(); - } else { - // read part of list - ret = fromListPartial(n, state.buffer, state.decoder); - } - - return ret; -} - -// Extracts only enough buffered data to satisfy the amount requested. -// This function is designed to be inlinable, so please take care when making -// changes to the function body. -function fromListPartial(n, list, hasStrings) { - var ret; - if (n < list.head.data.length) { - // slice is the same for buffers and strings - ret = list.head.data.slice(0, n); - list.head.data = list.head.data.slice(n); - } else if (n === list.head.data.length) { - // first chunk is a perfect match - ret = list.shift(); - } else { - // result spans more than one buffer - ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list); - } - return ret; -} - -// Copies a specified amount of characters from the list of buffered data -// chunks. -// This function is designed to be inlinable, so please take care when making -// changes to the function body. -function copyFromBufferString(n, list) { - var p = list.head; - var c = 1; - var ret = p.data; - n -= ret.length; - while (p = p.next) { - var str = p.data; - var nb = n > str.length ? str.length : n; - if (nb === str.length) ret += str;else ret += str.slice(0, n); - n -= nb; - if (n === 0) { - if (nb === str.length) { - ++c; - if (p.next) list.head = p.next;else list.head = list.tail = null; - } else { - list.head = p; - p.data = str.slice(nb); - } - break; - } - ++c; - } - list.length -= c; - return ret; -} - -// Copies a specified amount of bytes from the list of buffered data chunks. -// This function is designed to be inlinable, so please take care when making -// changes to the function body. -function copyFromBuffer(n, list) { - var ret = Buffer.allocUnsafe(n); - var p = list.head; - var c = 1; - p.data.copy(ret); - n -= p.data.length; - while (p = p.next) { - var buf = p.data; - var nb = n > buf.length ? buf.length : n; - buf.copy(ret, ret.length - n, 0, nb); - n -= nb; - if (n === 0) { - if (nb === buf.length) { - ++c; - if (p.next) list.head = p.next;else list.head = list.tail = null; - } else { - list.head = p; - p.data = buf.slice(nb); - } - break; - } - ++c; - } - list.length -= c; - return ret; -} - -function endReadable(stream) { - var state = stream._readableState; - - // If we get here before consuming all the bytes, then that is a - // bug in node. Should never happen. - if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream'); - - if (!state.endEmitted) { - state.ended = true; - pna.nextTick(endReadableNT, state, stream); - } -} - -function endReadableNT(state, stream) { - // Check that we didn't get one last unshift. - if (!state.endEmitted && state.length === 0) { - state.endEmitted = true; - stream.readable = false; - stream.emit('end'); - } -} - -function indexOf(xs, x) { - for (var i = 0, l = xs.length; i < l; i++) { - if (xs[i] === x) return i; - } - return -1; -} -}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"./_stream_duplex":36,"./internal/streams/BufferList":41,"./internal/streams/destroy":42,"./internal/streams/stream":43,"_process":30,"core-util-is":13,"events":16,"inherits":18,"isarray":20,"process-nextick-args":29,"safe-buffer":46,"string_decoder/":48,"util":11}],39:[function(require,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// a transform stream is a readable/writable stream where you do -// something with the data. Sometimes it's called a "filter", -// but that's not a great name for it, since that implies a thing where -// some bits pass through, and others are simply ignored. (That would -// be a valid example of a transform, of course.) -// -// While the output is causally related to the input, it's not a -// necessarily symmetric or synchronous transformation. For example, -// a zlib stream might take multiple plain-text writes(), and then -// emit a single compressed chunk some time in the future. -// -// Here's how this works: -// -// The Transform stream has all the aspects of the readable and writable -// stream classes. When you write(chunk), that calls _write(chunk,cb) -// internally, and returns false if there's a lot of pending writes -// buffered up. When you call read(), that calls _read(n) until -// there's enough pending readable data buffered up. -// -// In a transform stream, the written data is placed in a buffer. When -// _read(n) is called, it transforms the queued up data, calling the -// buffered _write cb's as it consumes chunks. If consuming a single -// written chunk would result in multiple output chunks, then the first -// outputted bit calls the readcb, and subsequent chunks just go into -// the read buffer, and will cause it to emit 'readable' if necessary. -// -// This way, back-pressure is actually determined by the reading side, -// since _read has to be called to start processing a new chunk. However, -// a pathological inflate type of transform can cause excessive buffering -// here. For example, imagine a stream where every byte of input is -// interpreted as an integer from 0-255, and then results in that many -// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in -// 1kb of data being output. In this case, you could write a very small -// amount of input, and end up with a very large amount of output. In -// such a pathological inflating mechanism, there'd be no way to tell -// the system to stop doing the transform. A single 4MB write could -// cause the system to run out of memory. -// -// However, even in such a pathological case, only a single written chunk -// would be consumed, and then the rest would wait (un-transformed) until -// the results of the previous transformed chunk were consumed. - -'use strict'; - -module.exports = Transform; - -var Duplex = require('./_stream_duplex'); - -/**/ -var util = require('core-util-is'); -util.inherits = require('inherits'); -/**/ - -util.inherits(Transform, Duplex); - -function afterTransform(er, data) { - var ts = this._transformState; - ts.transforming = false; - - var cb = ts.writecb; - - if (!cb) { - return this.emit('error', new Error('write callback called multiple times')); - } - - ts.writechunk = null; - ts.writecb = null; - - if (data != null) // single equals check for both `null` and `undefined` - this.push(data); - - cb(er); - - var rs = this._readableState; - rs.reading = false; - if (rs.needReadable || rs.length < rs.highWaterMark) { - this._read(rs.highWaterMark); - } -} - -function Transform(options) { - if (!(this instanceof Transform)) return new Transform(options); - - Duplex.call(this, options); - - this._transformState = { - afterTransform: afterTransform.bind(this), - needTransform: false, - transforming: false, - writecb: null, - writechunk: null, - writeencoding: null - }; - - // start out asking for a readable event once data is transformed. - this._readableState.needReadable = true; - - // we have implemented the _read method, and done the other things - // that Readable wants before the first _read call, so unset the - // sync guard flag. - this._readableState.sync = false; - - if (options) { - if (typeof options.transform === 'function') this._transform = options.transform; - - if (typeof options.flush === 'function') this._flush = options.flush; - } - - // When the writable side finishes, then flush out anything remaining. - this.on('prefinish', prefinish); -} - -function prefinish() { - var _this = this; - - if (typeof this._flush === 'function') { - this._flush(function (er, data) { - done(_this, er, data); - }); - } else { - done(this, null, null); - } -} - -Transform.prototype.push = function (chunk, encoding) { - this._transformState.needTransform = false; - return Duplex.prototype.push.call(this, chunk, encoding); -}; - -// This is the part where you do stuff! -// override this function in implementation classes. -// 'chunk' is an input chunk. -// -// Call `push(newChunk)` to pass along transformed output -// to the readable side. You may call 'push' zero or more times. -// -// Call `cb(err)` when you are done with this chunk. If you pass -// an error, then that'll put the hurt on the whole operation. If you -// never call cb(), then you'll never get another chunk. -Transform.prototype._transform = function (chunk, encoding, cb) { - throw new Error('_transform() is not implemented'); -}; - -Transform.prototype._write = function (chunk, encoding, cb) { - var ts = this._transformState; - ts.writecb = cb; - ts.writechunk = chunk; - ts.writeencoding = encoding; - if (!ts.transforming) { - var rs = this._readableState; - if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark); - } -}; - -// Doesn't matter what the args are here. -// _transform does all the work. -// That we got here means that the readable side wants more data. -Transform.prototype._read = function (n) { - var ts = this._transformState; - - if (ts.writechunk !== null && ts.writecb && !ts.transforming) { - ts.transforming = true; - this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform); - } else { - // mark that we need a transform, so that any data that comes in - // will get processed, now that we've asked for it. - ts.needTransform = true; - } -}; - -Transform.prototype._destroy = function (err, cb) { - var _this2 = this; - - Duplex.prototype._destroy.call(this, err, function (err2) { - cb(err2); - _this2.emit('close'); - }); -}; - -function done(stream, er, data) { - if (er) return stream.emit('error', er); - - if (data != null) // single equals check for both `null` and `undefined` - stream.push(data); - - // if there's nothing in the write buffer, then that means - // that nothing more will ever be provided - if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0'); - - if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming'); - - return stream.push(null); -} -},{"./_stream_duplex":36,"core-util-is":13,"inherits":18}],40:[function(require,module,exports){ -(function (process,global){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// A bit simpler than readable streams. -// Implement an async ._write(chunk, encoding, cb), and it'll handle all -// the drain event emission and buffering. - -'use strict'; - -/**/ - -var pna = require('process-nextick-args'); -/**/ - -module.exports = Writable; - -/* */ -function WriteReq(chunk, encoding, cb) { - this.chunk = chunk; - this.encoding = encoding; - this.callback = cb; - this.next = null; -} - -// It seems a linked list but it is not -// there will be only 2 of these for each stream -function CorkedRequest(state) { - var _this = this; - - this.next = null; - this.entry = null; - this.finish = function () { - onCorkedFinish(_this, state); - }; -} -/* */ - -/**/ -var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick; -/**/ - -/**/ -var Duplex; -/**/ - -Writable.WritableState = WritableState; - -/**/ -var util = require('core-util-is'); -util.inherits = require('inherits'); -/**/ - -/**/ -var internalUtil = { - deprecate: require('util-deprecate') -}; -/**/ - -/**/ -var Stream = require('./internal/streams/stream'); -/**/ - -/**/ - -var Buffer = require('safe-buffer').Buffer; -var OurUint8Array = global.Uint8Array || function () {}; -function _uint8ArrayToBuffer(chunk) { - return Buffer.from(chunk); -} -function _isUint8Array(obj) { - return Buffer.isBuffer(obj) || obj instanceof OurUint8Array; -} - -/**/ - -var destroyImpl = require('./internal/streams/destroy'); - -util.inherits(Writable, Stream); - -function nop() {} - -function WritableState(options, stream) { - Duplex = Duplex || require('./_stream_duplex'); - - options = options || {}; - - // Duplex streams are both readable and writable, but share - // the same options object. - // However, some cases require setting options to different - // values for the readable and the writable sides of the duplex stream. - // These options can be provided separately as readableXXX and writableXXX. - var isDuplex = stream instanceof Duplex; - - // object stream flag to indicate whether or not this stream - // contains buffers or objects. - this.objectMode = !!options.objectMode; - - if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode; - - // the point at which write() starts returning false - // Note: 0 is a valid value, means that we always return false if - // the entire buffer is not flushed immediately on write() - var hwm = options.highWaterMark; - var writableHwm = options.writableHighWaterMark; - var defaultHwm = this.objectMode ? 16 : 16 * 1024; - - if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm; - - // cast to ints. - this.highWaterMark = Math.floor(this.highWaterMark); - - // if _final has been called - this.finalCalled = false; - - // drain event flag. - this.needDrain = false; - // at the start of calling end() - this.ending = false; - // when end() has been called, and returned - this.ended = false; - // when 'finish' is emitted - this.finished = false; - - // has it been destroyed - this.destroyed = false; - - // should we decode strings into buffers before passing to _write? - // this is here so that some node-core streams can optimize string - // handling at a lower level. - var noDecode = options.decodeStrings === false; - this.decodeStrings = !noDecode; - - // Crypto is kind of old and crusty. Historically, its default string - // encoding is 'binary' so we have to make this configurable. - // Everything else in the universe uses 'utf8', though. - this.defaultEncoding = options.defaultEncoding || 'utf8'; - - // not an actual buffer we keep track of, but a measurement - // of how much we're waiting to get pushed to some underlying - // socket or file. - this.length = 0; - - // a flag to see when we're in the middle of a write. - this.writing = false; - - // when true all writes will be buffered until .uncork() call - this.corked = 0; - - // a flag to be able to tell if the onwrite cb is called immediately, - // or on a later tick. We set this to true at first, because any - // actions that shouldn't happen until "later" should generally also - // not happen before the first write call. - this.sync = true; - - // a flag to know if we're processing previously buffered items, which - // may call the _write() callback in the same tick, so that we don't - // end up in an overlapped onwrite situation. - this.bufferProcessing = false; - - // the callback that's passed to _write(chunk,cb) - this.onwrite = function (er) { - onwrite(stream, er); - }; - - // the callback that the user supplies to write(chunk,encoding,cb) - this.writecb = null; - - // the amount that is being written when _write is called. - this.writelen = 0; - - this.bufferedRequest = null; - this.lastBufferedRequest = null; - - // number of pending user-supplied write callbacks - // this must be 0 before 'finish' can be emitted - this.pendingcb = 0; - - // emit prefinish if the only thing we're waiting for is _write cbs - // This is relevant for synchronous Transform streams - this.prefinished = false; - - // True if the error was already emitted and should not be thrown again - this.errorEmitted = false; - - // count buffered requests - this.bufferedRequestCount = 0; - - // allocate the first CorkedRequest, there is always - // one allocated and free to use, and we maintain at most two - this.corkedRequestsFree = new CorkedRequest(this); -} - -WritableState.prototype.getBuffer = function getBuffer() { - var current = this.bufferedRequest; - var out = []; - while (current) { - out.push(current); - current = current.next; - } - return out; -}; - -(function () { - try { - Object.defineProperty(WritableState.prototype, 'buffer', { - get: internalUtil.deprecate(function () { - return this.getBuffer(); - }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003') - }); - } catch (_) {} -})(); - -// Test _writableState for inheritance to account for Duplex streams, -// whose prototype chain only points to Readable. -var realHasInstance; -if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') { - realHasInstance = Function.prototype[Symbol.hasInstance]; - Object.defineProperty(Writable, Symbol.hasInstance, { - value: function (object) { - if (realHasInstance.call(this, object)) return true; - if (this !== Writable) return false; - - return object && object._writableState instanceof WritableState; - } - }); -} else { - realHasInstance = function (object) { - return object instanceof this; - }; -} - -function Writable(options) { - Duplex = Duplex || require('./_stream_duplex'); - - // Writable ctor is applied to Duplexes, too. - // `realHasInstance` is necessary because using plain `instanceof` - // would return false, as no `_writableState` property is attached. - - // Trying to use the custom `instanceof` for Writable here will also break the - // Node.js LazyTransform implementation, which has a non-trivial getter for - // `_writableState` that would lead to infinite recursion. - if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) { - return new Writable(options); - } - - this._writableState = new WritableState(options, this); - - // legacy. - this.writable = true; - - if (options) { - if (typeof options.write === 'function') this._write = options.write; - - if (typeof options.writev === 'function') this._writev = options.writev; - - if (typeof options.destroy === 'function') this._destroy = options.destroy; - - if (typeof options.final === 'function') this._final = options.final; - } - - Stream.call(this); -} - -// Otherwise people can pipe Writable streams, which is just wrong. -Writable.prototype.pipe = function () { - this.emit('error', new Error('Cannot pipe, not readable')); -}; - -function writeAfterEnd(stream, cb) { - var er = new Error('write after end'); - // TODO: defer error events consistently everywhere, not just the cb - stream.emit('error', er); - pna.nextTick(cb, er); -} - -// Checks that a user-supplied chunk is valid, especially for the particular -// mode the stream is in. Currently this means that `null` is never accepted -// and undefined/non-string values are only allowed in object mode. -function validChunk(stream, state, chunk, cb) { - var valid = true; - var er = false; - - if (chunk === null) { - er = new TypeError('May not write null values to stream'); - } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) { - er = new TypeError('Invalid non-string/buffer chunk'); - } - if (er) { - stream.emit('error', er); - pna.nextTick(cb, er); - valid = false; - } - return valid; -} - -Writable.prototype.write = function (chunk, encoding, cb) { - var state = this._writableState; - var ret = false; - var isBuf = !state.objectMode && _isUint8Array(chunk); - - if (isBuf && !Buffer.isBuffer(chunk)) { - chunk = _uint8ArrayToBuffer(chunk); - } - - if (typeof encoding === 'function') { - cb = encoding; - encoding = null; - } - - if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding; - - if (typeof cb !== 'function') cb = nop; - - if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) { - state.pendingcb++; - ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb); - } - - return ret; -}; - -Writable.prototype.cork = function () { - var state = this._writableState; - - state.corked++; -}; - -Writable.prototype.uncork = function () { - var state = this._writableState; - - if (state.corked) { - state.corked--; - - if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state); - } -}; - -Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) { - // node::ParseEncoding() requires lower case. - if (typeof encoding === 'string') encoding = encoding.toLowerCase(); - if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding); - this._writableState.defaultEncoding = encoding; - return this; -}; - -function decodeChunk(state, chunk, encoding) { - if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') { - chunk = Buffer.from(chunk, encoding); - } - return chunk; -} - -Object.defineProperty(Writable.prototype, 'writableHighWaterMark', { - // making it explicit this property is not enumerable - // because otherwise some prototype manipulation in - // userland will fail - enumerable: false, - get: function () { - return this._writableState.highWaterMark; - } -}); - -// if we're already writing something, then just put this -// in the queue, and wait our turn. Otherwise, call _write -// If we return false, then we need a drain event, so set that flag. -function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) { - if (!isBuf) { - var newChunk = decodeChunk(state, chunk, encoding); - if (chunk !== newChunk) { - isBuf = true; - encoding = 'buffer'; - chunk = newChunk; - } - } - var len = state.objectMode ? 1 : chunk.length; - - state.length += len; - - var ret = state.length < state.highWaterMark; - // we must ensure that previous needDrain will not be reset to false. - if (!ret) state.needDrain = true; - - if (state.writing || state.corked) { - var last = state.lastBufferedRequest; - state.lastBufferedRequest = { - chunk: chunk, - encoding: encoding, - isBuf: isBuf, - callback: cb, - next: null - }; - if (last) { - last.next = state.lastBufferedRequest; - } else { - state.bufferedRequest = state.lastBufferedRequest; - } - state.bufferedRequestCount += 1; - } else { - doWrite(stream, state, false, len, chunk, encoding, cb); - } - - return ret; -} - -function doWrite(stream, state, writev, len, chunk, encoding, cb) { - state.writelen = len; - state.writecb = cb; - state.writing = true; - state.sync = true; - if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite); - state.sync = false; -} - -function onwriteError(stream, state, sync, er, cb) { - --state.pendingcb; - - if (sync) { - // defer the callback if we are being called synchronously - // to avoid piling up things on the stack - pna.nextTick(cb, er); - // this can emit finish, and it will always happen - // after error - pna.nextTick(finishMaybe, stream, state); - stream._writableState.errorEmitted = true; - stream.emit('error', er); - } else { - // the caller expect this to happen before if - // it is async - cb(er); - stream._writableState.errorEmitted = true; - stream.emit('error', er); - // this can emit finish, but finish must - // always follow error - finishMaybe(stream, state); - } -} - -function onwriteStateUpdate(state) { - state.writing = false; - state.writecb = null; - state.length -= state.writelen; - state.writelen = 0; -} - -function onwrite(stream, er) { - var state = stream._writableState; - var sync = state.sync; - var cb = state.writecb; - - onwriteStateUpdate(state); - - if (er) onwriteError(stream, state, sync, er, cb);else { - // Check if we're actually ready to finish, but don't emit yet - var finished = needFinish(state); - - if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) { - clearBuffer(stream, state); - } - - if (sync) { - /**/ - asyncWrite(afterWrite, stream, state, finished, cb); - /**/ - } else { - afterWrite(stream, state, finished, cb); - } - } -} - -function afterWrite(stream, state, finished, cb) { - if (!finished) onwriteDrain(stream, state); - state.pendingcb--; - cb(); - finishMaybe(stream, state); -} - -// Must force callback to be called on nextTick, so that we don't -// emit 'drain' before the write() consumer gets the 'false' return -// value, and has a chance to attach a 'drain' listener. -function onwriteDrain(stream, state) { - if (state.length === 0 && state.needDrain) { - state.needDrain = false; - stream.emit('drain'); - } -} - -// if there's something in the buffer waiting, then process it -function clearBuffer(stream, state) { - state.bufferProcessing = true; - var entry = state.bufferedRequest; - - if (stream._writev && entry && entry.next) { - // Fast case, write everything using _writev() - var l = state.bufferedRequestCount; - var buffer = new Array(l); - var holder = state.corkedRequestsFree; - holder.entry = entry; - - var count = 0; - var allBuffers = true; - while (entry) { - buffer[count] = entry; - if (!entry.isBuf) allBuffers = false; - entry = entry.next; - count += 1; - } - buffer.allBuffers = allBuffers; - - doWrite(stream, state, true, state.length, buffer, '', holder.finish); - - // doWrite is almost always async, defer these to save a bit of time - // as the hot path ends with doWrite - state.pendingcb++; - state.lastBufferedRequest = null; - if (holder.next) { - state.corkedRequestsFree = holder.next; - holder.next = null; - } else { - state.corkedRequestsFree = new CorkedRequest(state); - } - state.bufferedRequestCount = 0; - } else { - // Slow case, write chunks one-by-one - while (entry) { - var chunk = entry.chunk; - var encoding = entry.encoding; - var cb = entry.callback; - var len = state.objectMode ? 1 : chunk.length; - - doWrite(stream, state, false, len, chunk, encoding, cb); - entry = entry.next; - state.bufferedRequestCount--; - // if we didn't call the onwrite immediately, then - // it means that we need to wait until it does. - // also, that means that the chunk and cb are currently - // being processed, so move the buffer counter past them. - if (state.writing) { - break; - } - } - - if (entry === null) state.lastBufferedRequest = null; - } - - state.bufferedRequest = entry; - state.bufferProcessing = false; -} - -Writable.prototype._write = function (chunk, encoding, cb) { - cb(new Error('_write() is not implemented')); -}; - -Writable.prototype._writev = null; - -Writable.prototype.end = function (chunk, encoding, cb) { - var state = this._writableState; - - if (typeof chunk === 'function') { - cb = chunk; - chunk = null; - encoding = null; - } else if (typeof encoding === 'function') { - cb = encoding; - encoding = null; - } - - if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); - - // .end() fully uncorks - if (state.corked) { - state.corked = 1; - this.uncork(); - } - - // ignore unnecessary end() calls. - if (!state.ending && !state.finished) endWritable(this, state, cb); -}; - -function needFinish(state) { - return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing; -} -function callFinal(stream, state) { - stream._final(function (err) { - state.pendingcb--; - if (err) { - stream.emit('error', err); - } - state.prefinished = true; - stream.emit('prefinish'); - finishMaybe(stream, state); - }); -} -function prefinish(stream, state) { - if (!state.prefinished && !state.finalCalled) { - if (typeof stream._final === 'function') { - state.pendingcb++; - state.finalCalled = true; - pna.nextTick(callFinal, stream, state); - } else { - state.prefinished = true; - stream.emit('prefinish'); - } - } -} - -function finishMaybe(stream, state) { - var need = needFinish(state); - if (need) { - prefinish(stream, state); - if (state.pendingcb === 0) { - state.finished = true; - stream.emit('finish'); - } - } - return need; -} - -function endWritable(stream, state, cb) { - state.ending = true; - finishMaybe(stream, state); - if (cb) { - if (state.finished) pna.nextTick(cb);else stream.once('finish', cb); - } - state.ended = true; - stream.writable = false; -} - -function onCorkedFinish(corkReq, state, err) { - var entry = corkReq.entry; - corkReq.entry = null; - while (entry) { - var cb = entry.callback; - state.pendingcb--; - cb(err); - entry = entry.next; - } - if (state.corkedRequestsFree) { - state.corkedRequestsFree.next = corkReq; - } else { - state.corkedRequestsFree = corkReq; - } -} - -Object.defineProperty(Writable.prototype, 'destroyed', { - get: function () { - if (this._writableState === undefined) { - return false; - } - return this._writableState.destroyed; - }, - set: function (value) { - // we ignore the value if the stream - // has not been initialized yet - if (!this._writableState) { - return; - } - - // backward compatibility, the user is explicitly - // managing destroyed - this._writableState.destroyed = value; - } -}); - -Writable.prototype.destroy = destroyImpl.destroy; -Writable.prototype._undestroy = destroyImpl.undestroy; -Writable.prototype._destroy = function (err, cb) { - this.end(); - cb(err); -}; -}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"./_stream_duplex":36,"./internal/streams/destroy":42,"./internal/streams/stream":43,"_process":30,"core-util-is":13,"inherits":18,"process-nextick-args":29,"safe-buffer":46,"util-deprecate":51}],41:[function(require,module,exports){ -'use strict'; - -function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } - -var Buffer = require('safe-buffer').Buffer; -var util = require('util'); - -function copyBuffer(src, target, offset) { - src.copy(target, offset); -} - -module.exports = function () { - function BufferList() { - _classCallCheck(this, BufferList); - - this.head = null; - this.tail = null; - this.length = 0; - } - - BufferList.prototype.push = function push(v) { - var entry = { data: v, next: null }; - if (this.length > 0) this.tail.next = entry;else this.head = entry; - this.tail = entry; - ++this.length; - }; - - BufferList.prototype.unshift = function unshift(v) { - var entry = { data: v, next: this.head }; - if (this.length === 0) this.tail = entry; - this.head = entry; - ++this.length; - }; - - BufferList.prototype.shift = function shift() { - if (this.length === 0) return; - var ret = this.head.data; - if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next; - --this.length; - return ret; - }; - - BufferList.prototype.clear = function clear() { - this.head = this.tail = null; - this.length = 0; - }; - - BufferList.prototype.join = function join(s) { - if (this.length === 0) return ''; - var p = this.head; - var ret = '' + p.data; - while (p = p.next) { - ret += s + p.data; - }return ret; - }; - - BufferList.prototype.concat = function concat(n) { - if (this.length === 0) return Buffer.alloc(0); - if (this.length === 1) return this.head.data; - var ret = Buffer.allocUnsafe(n >>> 0); - var p = this.head; - var i = 0; - while (p) { - copyBuffer(p.data, ret, i); - i += p.data.length; - p = p.next; - } - return ret; - }; - - return BufferList; -}(); - -if (util && util.inspect && util.inspect.custom) { - module.exports.prototype[util.inspect.custom] = function () { - var obj = util.inspect({ length: this.length }); - return this.constructor.name + ' ' + obj; - }; -} -},{"safe-buffer":46,"util":11}],42:[function(require,module,exports){ -'use strict'; - -/**/ - -var pna = require('process-nextick-args'); -/**/ - -// undocumented cb() API, needed for core, not for public API -function destroy(err, cb) { - var _this = this; - - var readableDestroyed = this._readableState && this._readableState.destroyed; - var writableDestroyed = this._writableState && this._writableState.destroyed; - - if (readableDestroyed || writableDestroyed) { - if (cb) { - cb(err); - } else if (err && (!this._writableState || !this._writableState.errorEmitted)) { - pna.nextTick(emitErrorNT, this, err); - } - return this; - } - - // we set destroyed to true before firing error callbacks in order - // to make it re-entrance safe in case destroy() is called within callbacks - - if (this._readableState) { - this._readableState.destroyed = true; - } - - // if this is a duplex stream mark the writable part as destroyed as well - if (this._writableState) { - this._writableState.destroyed = true; - } - - this._destroy(err || null, function (err) { - if (!cb && err) { - pna.nextTick(emitErrorNT, _this, err); - if (_this._writableState) { - _this._writableState.errorEmitted = true; - } - } else if (cb) { - cb(err); - } - }); - - return this; -} - -function undestroy() { - if (this._readableState) { - this._readableState.destroyed = false; - this._readableState.reading = false; - this._readableState.ended = false; - this._readableState.endEmitted = false; - } - - if (this._writableState) { - this._writableState.destroyed = false; - this._writableState.ended = false; - this._writableState.ending = false; - this._writableState.finished = false; - this._writableState.errorEmitted = false; - } -} - -function emitErrorNT(self, err) { - self.emit('error', err); -} - -module.exports = { - destroy: destroy, - undestroy: undestroy -}; -},{"process-nextick-args":29}],43:[function(require,module,exports){ -module.exports = require('events').EventEmitter; - -},{"events":16}],44:[function(require,module,exports){ -exports = module.exports = require('./lib/_stream_readable.js'); -exports.Stream = exports; -exports.Readable = exports; -exports.Writable = require('./lib/_stream_writable.js'); -exports.Duplex = require('./lib/_stream_duplex.js'); -exports.Transform = require('./lib/_stream_transform.js'); -exports.PassThrough = require('./lib/_stream_passthrough.js'); - -},{"./lib/_stream_duplex.js":36,"./lib/_stream_passthrough.js":37,"./lib/_stream_readable.js":38,"./lib/_stream_transform.js":39,"./lib/_stream_writable.js":40}],45:[function(require,module,exports){ -'use strict' - -function ReInterval (callback, interval, args) { - var self = this; - - this._callback = callback; - this._args = args; - - this._interval = setInterval(callback, interval, this._args); - - this.reschedule = function (interval) { - // if no interval entered, use the interval passed in on creation - if (!interval) - interval = self._interval; - - if (self._interval) - clearInterval(self._interval); - self._interval = setInterval(self._callback, interval, self._args); - }; - - this.clear = function () { - if (self._interval) { - clearInterval(self._interval); - self._interval = undefined; - } - }; - - this.destroy = function () { - if (self._interval) { - clearInterval(self._interval); - } - self._callback = undefined; - self._interval = undefined; - self._args = undefined; - }; -} - -function reInterval () { - if (typeof arguments[0] !== 'function') - throw new Error('callback needed'); - if (typeof arguments[1] !== 'number') - throw new Error('interval needed'); - - var args; - - if (arguments.length > 0) { - args = new Array(arguments.length - 2); - - for (var i = 0; i < args.length; i++) { - args[i] = arguments[i + 2]; - } - } - - return new ReInterval(arguments[0], arguments[1], args); -} - -module.exports = reInterval; - -},{}],46:[function(require,module,exports){ -/* eslint-disable node/no-deprecated-api */ -var buffer = require('buffer') -var Buffer = buffer.Buffer - -// alternative to using Object.keys for old browsers -function copyProps (src, dst) { - for (var key in src) { - dst[key] = src[key] - } -} -if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) { - module.exports = buffer -} else { - // Copy properties from require('buffer') - copyProps(buffer, exports) - exports.Buffer = SafeBuffer -} - -function SafeBuffer (arg, encodingOrOffset, length) { - return Buffer(arg, encodingOrOffset, length) -} - -// Copy static methods from Buffer -copyProps(Buffer, SafeBuffer) - -SafeBuffer.from = function (arg, encodingOrOffset, length) { - if (typeof arg === 'number') { - throw new TypeError('Argument must not be a number') - } - return Buffer(arg, encodingOrOffset, length) -} - -SafeBuffer.alloc = function (size, fill, encoding) { - if (typeof size !== 'number') { - throw new TypeError('Argument must be a number') - } - var buf = Buffer(size) - if (fill !== undefined) { - if (typeof encoding === 'string') { - buf.fill(fill, encoding) - } else { - buf.fill(fill) - } - } else { - buf.fill(0) - } - return buf -} - -SafeBuffer.allocUnsafe = function (size) { - if (typeof size !== 'number') { - throw new TypeError('Argument must be a number') - } - return Buffer(size) -} - -SafeBuffer.allocUnsafeSlow = function (size) { - if (typeof size !== 'number') { - throw new TypeError('Argument must be a number') - } - return buffer.SlowBuffer(size) -} - -},{"buffer":12}],47:[function(require,module,exports){ -module.exports = shift - -function shift (stream) { - var rs = stream._readableState - if (!rs) return null - return rs.objectMode ? stream.read() : stream.read(getStateLength(rs)) -} - -function getStateLength (state) { - if (state.buffer.length) { - // Since node 6.3.0 state.buffer is a BufferList not an array - if (state.buffer.head) { - return state.buffer.head.data.length - } - - return state.buffer[0].length - } - - return state.length -} - -},{}],48:[function(require,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -'use strict'; - -/**/ - -var Buffer = require('safe-buffer').Buffer; -/**/ - -var isEncoding = Buffer.isEncoding || function (encoding) { - encoding = '' + encoding; - switch (encoding && encoding.toLowerCase()) { - case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw': - return true; - default: - return false; - } -}; - -function _normalizeEncoding(enc) { - if (!enc) return 'utf8'; - var retried; - while (true) { - switch (enc) { - case 'utf8': - case 'utf-8': - return 'utf8'; - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return 'utf16le'; - case 'latin1': - case 'binary': - return 'latin1'; - case 'base64': - case 'ascii': - case 'hex': - return enc; - default: - if (retried) return; // undefined - enc = ('' + enc).toLowerCase(); - retried = true; - } - } -}; - -// Do not cache `Buffer.isEncoding` when checking encoding names as some -// modules monkey-patch it to support additional encodings -function normalizeEncoding(enc) { - var nenc = _normalizeEncoding(enc); - if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc); - return nenc || enc; -} - -// StringDecoder provides an interface for efficiently splitting a series of -// buffers into a series of JS strings without breaking apart multi-byte -// characters. -exports.StringDecoder = StringDecoder; -function StringDecoder(encoding) { - this.encoding = normalizeEncoding(encoding); - var nb; - switch (this.encoding) { - case 'utf16le': - this.text = utf16Text; - this.end = utf16End; - nb = 4; - break; - case 'utf8': - this.fillLast = utf8FillLast; - nb = 4; - break; - case 'base64': - this.text = base64Text; - this.end = base64End; - nb = 3; - break; - default: - this.write = simpleWrite; - this.end = simpleEnd; - return; - } - this.lastNeed = 0; - this.lastTotal = 0; - this.lastChar = Buffer.allocUnsafe(nb); -} - -StringDecoder.prototype.write = function (buf) { - if (buf.length === 0) return ''; - var r; - var i; - if (this.lastNeed) { - r = this.fillLast(buf); - if (r === undefined) return ''; - i = this.lastNeed; - this.lastNeed = 0; - } else { - i = 0; - } - if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i); - return r || ''; -}; - -StringDecoder.prototype.end = utf8End; - -// Returns only complete characters in a Buffer -StringDecoder.prototype.text = utf8Text; - -// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer -StringDecoder.prototype.fillLast = function (buf) { - if (this.lastNeed <= buf.length) { - buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed); - return this.lastChar.toString(this.encoding, 0, this.lastTotal); - } - buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length); - this.lastNeed -= buf.length; -}; - -// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a -// continuation byte. If an invalid byte is detected, -2 is returned. -function utf8CheckByte(byte) { - if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4; - return byte >> 6 === 0x02 ? -1 : -2; -} - -// Checks at most 3 bytes at the end of a Buffer in order to detect an -// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4) -// needed to complete the UTF-8 character (if applicable) are returned. -function utf8CheckIncomplete(self, buf, i) { - var j = buf.length - 1; - if (j < i) return 0; - var nb = utf8CheckByte(buf[j]); - if (nb >= 0) { - if (nb > 0) self.lastNeed = nb - 1; - return nb; - } - if (--j < i || nb === -2) return 0; - nb = utf8CheckByte(buf[j]); - if (nb >= 0) { - if (nb > 0) self.lastNeed = nb - 2; - return nb; - } - if (--j < i || nb === -2) return 0; - nb = utf8CheckByte(buf[j]); - if (nb >= 0) { - if (nb > 0) { - if (nb === 2) nb = 0;else self.lastNeed = nb - 3; - } - return nb; - } - return 0; -} - -// Validates as many continuation bytes for a multi-byte UTF-8 character as -// needed or are available. If we see a non-continuation byte where we expect -// one, we "replace" the validated continuation bytes we've seen so far with -// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding -// behavior. The continuation byte check is included three times in the case -// where all of the continuation bytes for a character exist in the same buffer. -// It is also done this way as a slight performance increase instead of using a -// loop. -function utf8CheckExtraBytes(self, buf, p) { - if ((buf[0] & 0xC0) !== 0x80) { - self.lastNeed = 0; - return '\ufffd'; - } - if (self.lastNeed > 1 && buf.length > 1) { - if ((buf[1] & 0xC0) !== 0x80) { - self.lastNeed = 1; - return '\ufffd'; - } - if (self.lastNeed > 2 && buf.length > 2) { - if ((buf[2] & 0xC0) !== 0x80) { - self.lastNeed = 2; - return '\ufffd'; - } - } - } -} - -// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer. -function utf8FillLast(buf) { - var p = this.lastTotal - this.lastNeed; - var r = utf8CheckExtraBytes(this, buf, p); - if (r !== undefined) return r; - if (this.lastNeed <= buf.length) { - buf.copy(this.lastChar, p, 0, this.lastNeed); - return this.lastChar.toString(this.encoding, 0, this.lastTotal); - } - buf.copy(this.lastChar, p, 0, buf.length); - this.lastNeed -= buf.length; -} - -// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a -// partial character, the character's bytes are buffered until the required -// number of bytes are available. -function utf8Text(buf, i) { - var total = utf8CheckIncomplete(this, buf, i); - if (!this.lastNeed) return buf.toString('utf8', i); - this.lastTotal = total; - var end = buf.length - (total - this.lastNeed); - buf.copy(this.lastChar, 0, end); - return buf.toString('utf8', i, end); -} - -// For UTF-8, a replacement character is added when ending on a partial -// character. -function utf8End(buf) { - var r = buf && buf.length ? this.write(buf) : ''; - if (this.lastNeed) return r + '\ufffd'; - return r; -} - -// UTF-16LE typically needs two bytes per character, but even if we have an even -// number of bytes available, we need to check if we end on a leading/high -// surrogate. In that case, we need to wait for the next two bytes in order to -// decode the last character properly. -function utf16Text(buf, i) { - if ((buf.length - i) % 2 === 0) { - var r = buf.toString('utf16le', i); - if (r) { - var c = r.charCodeAt(r.length - 1); - if (c >= 0xD800 && c <= 0xDBFF) { - this.lastNeed = 2; - this.lastTotal = 4; - this.lastChar[0] = buf[buf.length - 2]; - this.lastChar[1] = buf[buf.length - 1]; - return r.slice(0, -1); - } - } - return r; - } - this.lastNeed = 1; - this.lastTotal = 2; - this.lastChar[0] = buf[buf.length - 1]; - return buf.toString('utf16le', i, buf.length - 1); -} - -// For UTF-16LE we do not explicitly append special replacement characters if we -// end on a partial character, we simply let v8 handle that. -function utf16End(buf) { - var r = buf && buf.length ? this.write(buf) : ''; - if (this.lastNeed) { - var end = this.lastTotal - this.lastNeed; - return r + this.lastChar.toString('utf16le', 0, end); - } - return r; -} - -function base64Text(buf, i) { - var n = (buf.length - i) % 3; - if (n === 0) return buf.toString('base64', i); - this.lastNeed = 3 - n; - this.lastTotal = 3; - if (n === 1) { - this.lastChar[0] = buf[buf.length - 1]; - } else { - this.lastChar[0] = buf[buf.length - 2]; - this.lastChar[1] = buf[buf.length - 1]; - } - return buf.toString('base64', i, buf.length - n); -} - -function base64End(buf) { - var r = buf && buf.length ? this.write(buf) : ''; - if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed); - return r; -} - -// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex) -function simpleWrite(buf) { - return buf.toString(this.encoding); -} - -function simpleEnd(buf) { - return buf && buf.length ? this.write(buf) : ''; -} -},{"safe-buffer":46}],49:[function(require,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -'use strict'; - -var punycode = require('punycode'); -var util = require('./util'); - -exports.parse = urlParse; -exports.resolve = urlResolve; -exports.resolveObject = urlResolveObject; -exports.format = urlFormat; - -exports.Url = Url; - -function Url() { - this.protocol = null; - this.slashes = null; - this.auth = null; - this.host = null; - this.port = null; - this.hostname = null; - this.hash = null; - this.search = null; - this.query = null; - this.pathname = null; - this.path = null; - this.href = null; -} - -// Reference: RFC 3986, RFC 1808, RFC 2396 - -// define these here so at least they only have to be -// compiled once on the first module load. -var protocolPattern = /^([a-z0-9.+-]+:)/i, - portPattern = /:[0-9]*$/, - - // Special case for a simple path URL - simplePathPattern = /^(\/\/?(?!\/)[^\?\s]*)(\?[^\s]*)?$/, - - // RFC 2396: characters reserved for delimiting URLs. - // We actually just auto-escape these. - delims = ['<', '>', '"', '`', ' ', '\r', '\n', '\t'], - - // RFC 2396: characters not allowed for various reasons. - unwise = ['{', '}', '|', '\\', '^', '`'].concat(delims), - - // Allowed by RFCs, but cause of XSS attacks. Always escape these. - autoEscape = ['\''].concat(unwise), - // Characters that are never ever allowed in a hostname. - // Note that any invalid chars are also handled, but these - // are the ones that are *expected* to be seen, so we fast-path - // them. - nonHostChars = ['%', '/', '?', ';', '#'].concat(autoEscape), - hostEndingChars = ['/', '?', '#'], - hostnameMaxLen = 255, - hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/, - hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/, - // protocols that can allow "unsafe" and "unwise" chars. - unsafeProtocol = { - 'javascript': true, - 'javascript:': true - }, - // protocols that never have a hostname. - hostlessProtocol = { - 'javascript': true, - 'javascript:': true - }, - // protocols that always contain a // bit. - slashedProtocol = { - 'http': true, - 'https': true, - 'ftp': true, - 'gopher': true, - 'file': true, - 'http:': true, - 'https:': true, - 'ftp:': true, - 'gopher:': true, - 'file:': true - }, - querystring = require('querystring'); - -function urlParse(url, parseQueryString, slashesDenoteHost) { - if (url && util.isObject(url) && url instanceof Url) return url; - - var u = new Url; - u.parse(url, parseQueryString, slashesDenoteHost); - return u; -} - -Url.prototype.parse = function(url, parseQueryString, slashesDenoteHost) { - if (!util.isString(url)) { - throw new TypeError("Parameter 'url' must be a string, not " + typeof url); - } - - // Copy chrome, IE, opera backslash-handling behavior. - // Back slashes before the query string get converted to forward slashes - // See: https://code.google.com/p/chromium/issues/detail?id=25916 - var queryIndex = url.indexOf('?'), - splitter = - (queryIndex !== -1 && queryIndex < url.indexOf('#')) ? '?' : '#', - uSplit = url.split(splitter), - slashRegex = /\\/g; - uSplit[0] = uSplit[0].replace(slashRegex, '/'); - url = uSplit.join(splitter); - - var rest = url; - - // trim before proceeding. - // This is to support parse stuff like " http://foo.com \n" - rest = rest.trim(); - - if (!slashesDenoteHost && url.split('#').length === 1) { - // Try fast path regexp - var simplePath = simplePathPattern.exec(rest); - if (simplePath) { - this.path = rest; - this.href = rest; - this.pathname = simplePath[1]; - if (simplePath[2]) { - this.search = simplePath[2]; - if (parseQueryString) { - this.query = querystring.parse(this.search.substr(1)); - } else { - this.query = this.search.substr(1); - } - } else if (parseQueryString) { - this.search = ''; - this.query = {}; - } - return this; - } - } - - var proto = protocolPattern.exec(rest); - if (proto) { - proto = proto[0]; - var lowerProto = proto.toLowerCase(); - this.protocol = lowerProto; - rest = rest.substr(proto.length); - } - - // figure out if it's got a host - // user@server is *always* interpreted as a hostname, and url - // resolution will treat //foo/bar as host=foo,path=bar because that's - // how the browser resolves relative URLs. - if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) { - var slashes = rest.substr(0, 2) === '//'; - if (slashes && !(proto && hostlessProtocol[proto])) { - rest = rest.substr(2); - this.slashes = true; - } - } - - if (!hostlessProtocol[proto] && - (slashes || (proto && !slashedProtocol[proto]))) { - - // there's a hostname. - // the first instance of /, ?, ;, or # ends the host. - // - // If there is an @ in the hostname, then non-host chars *are* allowed - // to the left of the last @ sign, unless some host-ending character - // comes *before* the @-sign. - // URLs are obnoxious. - // - // ex: - // http://a@b@c/ => user:a@b host:c - // http://a@b?@c => user:a host:c path:/?@c - - // v0.12 TODO(isaacs): This is not quite how Chrome does things. - // Review our test case against browsers more comprehensively. - - // find the first instance of any hostEndingChars - var hostEnd = -1; - for (var i = 0; i < hostEndingChars.length; i++) { - var hec = rest.indexOf(hostEndingChars[i]); - if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) - hostEnd = hec; - } - - // at this point, either we have an explicit point where the - // auth portion cannot go past, or the last @ char is the decider. - var auth, atSign; - if (hostEnd === -1) { - // atSign can be anywhere. - atSign = rest.lastIndexOf('@'); - } else { - // atSign must be in auth portion. - // http://a@b/c@d => host:b auth:a path:/c@d - atSign = rest.lastIndexOf('@', hostEnd); - } - - // Now we have a portion which is definitely the auth. - // Pull that off. - if (atSign !== -1) { - auth = rest.slice(0, atSign); - rest = rest.slice(atSign + 1); - this.auth = decodeURIComponent(auth); - } - - // the host is the remaining to the left of the first non-host char - hostEnd = -1; - for (var i = 0; i < nonHostChars.length; i++) { - var hec = rest.indexOf(nonHostChars[i]); - if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) - hostEnd = hec; - } - // if we still have not hit it, then the entire thing is a host. - if (hostEnd === -1) - hostEnd = rest.length; - - this.host = rest.slice(0, hostEnd); - rest = rest.slice(hostEnd); - - // pull out port. - this.parseHost(); - - // we've indicated that there is a hostname, - // so even if it's empty, it has to be present. - this.hostname = this.hostname || ''; - - // if hostname begins with [ and ends with ] - // assume that it's an IPv6 address. - var ipv6Hostname = this.hostname[0] === '[' && - this.hostname[this.hostname.length - 1] === ']'; - - // validate a little. - if (!ipv6Hostname) { - var hostparts = this.hostname.split(/\./); - for (var i = 0, l = hostparts.length; i < l; i++) { - var part = hostparts[i]; - if (!part) continue; - if (!part.match(hostnamePartPattern)) { - var newpart = ''; - for (var j = 0, k = part.length; j < k; j++) { - if (part.charCodeAt(j) > 127) { - // we replace non-ASCII char with a temporary placeholder - // we need this to make sure size of hostname is not - // broken by replacing non-ASCII by nothing - newpart += 'x'; - } else { - newpart += part[j]; - } - } - // we test again with ASCII char only - if (!newpart.match(hostnamePartPattern)) { - var validParts = hostparts.slice(0, i); - var notHost = hostparts.slice(i + 1); - var bit = part.match(hostnamePartStart); - if (bit) { - validParts.push(bit[1]); - notHost.unshift(bit[2]); - } - if (notHost.length) { - rest = '/' + notHost.join('.') + rest; - } - this.hostname = validParts.join('.'); - break; - } - } - } - } - - if (this.hostname.length > hostnameMaxLen) { - this.hostname = ''; - } else { - // hostnames are always lower case. - this.hostname = this.hostname.toLowerCase(); - } - - if (!ipv6Hostname) { - // IDNA Support: Returns a punycoded representation of "domain". - // It only converts parts of the domain name that - // have non-ASCII characters, i.e. it doesn't matter if - // you call it with a domain that already is ASCII-only. - this.hostname = punycode.toASCII(this.hostname); - } - - var p = this.port ? ':' + this.port : ''; - var h = this.hostname || ''; - this.host = h + p; - this.href += this.host; - - // strip [ and ] from the hostname - // the host field still retains them, though - if (ipv6Hostname) { - this.hostname = this.hostname.substr(1, this.hostname.length - 2); - if (rest[0] !== '/') { - rest = '/' + rest; - } - } - } - - // now rest is set to the post-host stuff. - // chop off any delim chars. - if (!unsafeProtocol[lowerProto]) { - - // First, make 100% sure that any "autoEscape" chars get - // escaped, even if encodeURIComponent doesn't think they - // need to be. - for (var i = 0, l = autoEscape.length; i < l; i++) { - var ae = autoEscape[i]; - if (rest.indexOf(ae) === -1) - continue; - var esc = encodeURIComponent(ae); - if (esc === ae) { - esc = escape(ae); - } - rest = rest.split(ae).join(esc); - } - } - - - // chop off from the tail first. - var hash = rest.indexOf('#'); - if (hash !== -1) { - // got a fragment string. - this.hash = rest.substr(hash); - rest = rest.slice(0, hash); - } - var qm = rest.indexOf('?'); - if (qm !== -1) { - this.search = rest.substr(qm); - this.query = rest.substr(qm + 1); - if (parseQueryString) { - this.query = querystring.parse(this.query); - } - rest = rest.slice(0, qm); - } else if (parseQueryString) { - // no query string, but parseQueryString still requested - this.search = ''; - this.query = {}; - } - if (rest) this.pathname = rest; - if (slashedProtocol[lowerProto] && - this.hostname && !this.pathname) { - this.pathname = '/'; - } - - //to support http.request - if (this.pathname || this.search) { - var p = this.pathname || ''; - var s = this.search || ''; - this.path = p + s; - } - - // finally, reconstruct the href based on what has been validated. - this.href = this.format(); - return this; -}; - -// format a parsed object into a url string -function urlFormat(obj) { - // ensure it's an object, and not a string url. - // If it's an obj, this is a no-op. - // this way, you can call url_format() on strings - // to clean up potentially wonky urls. - if (util.isString(obj)) obj = urlParse(obj); - if (!(obj instanceof Url)) return Url.prototype.format.call(obj); - return obj.format(); -} - -Url.prototype.format = function() { - var auth = this.auth || ''; - if (auth) { - auth = encodeURIComponent(auth); - auth = auth.replace(/%3A/i, ':'); - auth += '@'; - } - - var protocol = this.protocol || '', - pathname = this.pathname || '', - hash = this.hash || '', - host = false, - query = ''; - - if (this.host) { - host = auth + this.host; - } else if (this.hostname) { - host = auth + (this.hostname.indexOf(':') === -1 ? - this.hostname : - '[' + this.hostname + ']'); - if (this.port) { - host += ':' + this.port; - } - } - - if (this.query && - util.isObject(this.query) && - Object.keys(this.query).length) { - query = querystring.stringify(this.query); - } - - var search = this.search || (query && ('?' + query)) || ''; - - if (protocol && protocol.substr(-1) !== ':') protocol += ':'; - - // only the slashedProtocols get the //. Not mailto:, xmpp:, etc. - // unless they had them to begin with. - if (this.slashes || - (!protocol || slashedProtocol[protocol]) && host !== false) { - host = '//' + (host || ''); - if (pathname && pathname.charAt(0) !== '/') pathname = '/' + pathname; - } else if (!host) { - host = ''; - } - - if (hash && hash.charAt(0) !== '#') hash = '#' + hash; - if (search && search.charAt(0) !== '?') search = '?' + search; - - pathname = pathname.replace(/[?#]/g, function(match) { - return encodeURIComponent(match); - }); - search = search.replace('#', '%23'); - - return protocol + host + pathname + search + hash; -}; - -function urlResolve(source, relative) { - return urlParse(source, false, true).resolve(relative); -} - -Url.prototype.resolve = function(relative) { - return this.resolveObject(urlParse(relative, false, true)).format(); -}; - -function urlResolveObject(source, relative) { - if (!source) return relative; - return urlParse(source, false, true).resolveObject(relative); -} - -Url.prototype.resolveObject = function(relative) { - if (util.isString(relative)) { - var rel = new Url(); - rel.parse(relative, false, true); - relative = rel; - } - - var result = new Url(); - var tkeys = Object.keys(this); - for (var tk = 0; tk < tkeys.length; tk++) { - var tkey = tkeys[tk]; - result[tkey] = this[tkey]; - } - - // hash is always overridden, no matter what. - // even href="" will remove it. - result.hash = relative.hash; - - // if the relative url is empty, then there's nothing left to do here. - if (relative.href === '') { - result.href = result.format(); - return result; - } - - // hrefs like //foo/bar always cut to the protocol. - if (relative.slashes && !relative.protocol) { - // take everything except the protocol from relative - var rkeys = Object.keys(relative); - for (var rk = 0; rk < rkeys.length; rk++) { - var rkey = rkeys[rk]; - if (rkey !== 'protocol') - result[rkey] = relative[rkey]; - } - - //urlParse appends trailing / to urls like http://www.example.com - if (slashedProtocol[result.protocol] && - result.hostname && !result.pathname) { - result.path = result.pathname = '/'; - } - - result.href = result.format(); - return result; - } - - if (relative.protocol && relative.protocol !== result.protocol) { - // if it's a known url protocol, then changing - // the protocol does weird things - // first, if it's not file:, then we MUST have a host, - // and if there was a path - // to begin with, then we MUST have a path. - // if it is file:, then the host is dropped, - // because that's known to be hostless. - // anything else is assumed to be absolute. - if (!slashedProtocol[relative.protocol]) { - var keys = Object.keys(relative); - for (var v = 0; v < keys.length; v++) { - var k = keys[v]; - result[k] = relative[k]; - } - result.href = result.format(); - return result; - } - - result.protocol = relative.protocol; - if (!relative.host && !hostlessProtocol[relative.protocol]) { - var relPath = (relative.pathname || '').split('/'); - while (relPath.length && !(relative.host = relPath.shift())); - if (!relative.host) relative.host = ''; - if (!relative.hostname) relative.hostname = ''; - if (relPath[0] !== '') relPath.unshift(''); - if (relPath.length < 2) relPath.unshift(''); - result.pathname = relPath.join('/'); - } else { - result.pathname = relative.pathname; - } - result.search = relative.search; - result.query = relative.query; - result.host = relative.host || ''; - result.auth = relative.auth; - result.hostname = relative.hostname || relative.host; - result.port = relative.port; - // to support http.request - if (result.pathname || result.search) { - var p = result.pathname || ''; - var s = result.search || ''; - result.path = p + s; - } - result.slashes = result.slashes || relative.slashes; - result.href = result.format(); - return result; - } - - var isSourceAbs = (result.pathname && result.pathname.charAt(0) === '/'), - isRelAbs = ( - relative.host || - relative.pathname && relative.pathname.charAt(0) === '/' - ), - mustEndAbs = (isRelAbs || isSourceAbs || - (result.host && relative.pathname)), - removeAllDots = mustEndAbs, - srcPath = result.pathname && result.pathname.split('/') || [], - relPath = relative.pathname && relative.pathname.split('/') || [], - psychotic = result.protocol && !slashedProtocol[result.protocol]; - - // if the url is a non-slashed url, then relative - // links like ../.. should be able - // to crawl up to the hostname, as well. This is strange. - // result.protocol has already been set by now. - // Later on, put the first path part into the host field. - if (psychotic) { - result.hostname = ''; - result.port = null; - if (result.host) { - if (srcPath[0] === '') srcPath[0] = result.host; - else srcPath.unshift(result.host); - } - result.host = ''; - if (relative.protocol) { - relative.hostname = null; - relative.port = null; - if (relative.host) { - if (relPath[0] === '') relPath[0] = relative.host; - else relPath.unshift(relative.host); - } - relative.host = null; - } - mustEndAbs = mustEndAbs && (relPath[0] === '' || srcPath[0] === ''); - } - - if (isRelAbs) { - // it's absolute. - result.host = (relative.host || relative.host === '') ? - relative.host : result.host; - result.hostname = (relative.hostname || relative.hostname === '') ? - relative.hostname : result.hostname; - result.search = relative.search; - result.query = relative.query; - srcPath = relPath; - // fall through to the dot-handling below. - } else if (relPath.length) { - // it's relative - // throw away the existing file, and take the new path instead. - if (!srcPath) srcPath = []; - srcPath.pop(); - srcPath = srcPath.concat(relPath); - result.search = relative.search; - result.query = relative.query; - } else if (!util.isNullOrUndefined(relative.search)) { - // just pull out the search. - // like href='?foo'. - // Put this after the other two cases because it simplifies the booleans - if (psychotic) { - result.hostname = result.host = srcPath.shift(); - //occationaly the auth can get stuck only in host - //this especially happens in cases like - //url.resolveObject('mailto:local1@domain1', 'local2@domain2') - var authInHost = result.host && result.host.indexOf('@') > 0 ? - result.host.split('@') : false; - if (authInHost) { - result.auth = authInHost.shift(); - result.host = result.hostname = authInHost.shift(); - } - } - result.search = relative.search; - result.query = relative.query; - //to support http.request - if (!util.isNull(result.pathname) || !util.isNull(result.search)) { - result.path = (result.pathname ? result.pathname : '') + - (result.search ? result.search : ''); - } - result.href = result.format(); - return result; - } - - if (!srcPath.length) { - // no path at all. easy. - // we've already handled the other stuff above. - result.pathname = null; - //to support http.request - if (result.search) { - result.path = '/' + result.search; - } else { - result.path = null; - } - result.href = result.format(); - return result; - } - - // if a url ENDs in . or .., then it must get a trailing slash. - // however, if it ends in anything else non-slashy, - // then it must NOT get a trailing slash. - var last = srcPath.slice(-1)[0]; - var hasTrailingSlash = ( - (result.host || relative.host || srcPath.length > 1) && - (last === '.' || last === '..') || last === ''); - - // strip single dots, resolve double dots to parent dir - // if the path tries to go above the root, `up` ends up > 0 - var up = 0; - for (var i = srcPath.length; i >= 0; i--) { - last = srcPath[i]; - if (last === '.') { - srcPath.splice(i, 1); - } else if (last === '..') { - srcPath.splice(i, 1); - up++; - } else if (up) { - srcPath.splice(i, 1); - up--; - } - } - - // if the path is allowed to go above the root, restore leading ..s - if (!mustEndAbs && !removeAllDots) { - for (; up--; up) { - srcPath.unshift('..'); - } - } - - if (mustEndAbs && srcPath[0] !== '' && - (!srcPath[0] || srcPath[0].charAt(0) !== '/')) { - srcPath.unshift(''); - } - - if (hasTrailingSlash && (srcPath.join('/').substr(-1) !== '/')) { - srcPath.push(''); - } - - var isAbsolute = srcPath[0] === '' || - (srcPath[0] && srcPath[0].charAt(0) === '/'); - - // put the host back - if (psychotic) { - result.hostname = result.host = isAbsolute ? '' : - srcPath.length ? srcPath.shift() : ''; - //occationaly the auth can get stuck only in host - //this especially happens in cases like - //url.resolveObject('mailto:local1@domain1', 'local2@domain2') - var authInHost = result.host && result.host.indexOf('@') > 0 ? - result.host.split('@') : false; - if (authInHost) { - result.auth = authInHost.shift(); - result.host = result.hostname = authInHost.shift(); - } - } - - mustEndAbs = mustEndAbs || (result.host && srcPath.length); - - if (mustEndAbs && !isAbsolute) { - srcPath.unshift(''); - } - - if (!srcPath.length) { - result.pathname = null; - result.path = null; - } else { - result.pathname = srcPath.join('/'); - } - - //to support request.http - if (!util.isNull(result.pathname) || !util.isNull(result.search)) { - result.path = (result.pathname ? result.pathname : '') + - (result.search ? result.search : ''); - } - result.auth = relative.auth || result.auth; - result.slashes = result.slashes || relative.slashes; - result.href = result.format(); - return result; -}; - -Url.prototype.parseHost = function() { - var host = this.host; - var port = portPattern.exec(host); - if (port) { - port = port[0]; - if (port !== ':') { - this.port = port.substr(1); - } - host = host.substr(0, host.length - port.length); - } - if (host) this.hostname = host; -}; - -},{"./util":50,"punycode":31,"querystring":34}],50:[function(require,module,exports){ -'use strict'; - -module.exports = { - isString: function(arg) { - return typeof(arg) === 'string'; - }, - isObject: function(arg) { - return typeof(arg) === 'object' && arg !== null; - }, - isNull: function(arg) { - return arg === null; - }, - isNullOrUndefined: function(arg) { - return arg == null; - } -}; - -},{}],51:[function(require,module,exports){ -(function (global){ - -/** - * Module exports. - */ - -module.exports = deprecate; - -/** - * Mark that a method should not be used. - * Returns a modified function which warns once by default. - * - * If `localStorage.noDeprecation = true` is set, then it is a no-op. - * - * If `localStorage.throwDeprecation = true` is set, then deprecated functions - * will throw an Error when invoked. - * - * If `localStorage.traceDeprecation = true` is set, then deprecated functions - * will invoke `console.trace()` instead of `console.error()`. - * - * @param {Function} fn - the function to deprecate - * @param {String} msg - the string to print to the console when `fn` is invoked - * @returns {Function} a new "deprecated" version of `fn` - * @api public - */ - -function deprecate (fn, msg) { - if (config('noDeprecation')) { - return fn; - } - - var warned = false; - function deprecated() { - if (!warned) { - if (config('throwDeprecation')) { - throw new Error(msg); - } else if (config('traceDeprecation')) { - console.trace(msg); - } else { - console.warn(msg); - } - warned = true; - } - return fn.apply(this, arguments); - } - - return deprecated; -} - -/** - * Checks `localStorage` for boolean values for the given `name`. - * - * @param {String} name - * @returns {Boolean} - * @api private - */ - -function config (name) { - // accessing global.localStorage can trigger a DOMException in sandboxed iframes - try { - if (!global.localStorage) return false; - } catch (_) { - return false; - } - var val = global.localStorage[name]; - if (null == val) return false; - return String(val).toLowerCase() === 'true'; -} - -}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{}],52:[function(require,module,exports){ -arguments[4][18][0].apply(exports,arguments) -},{"dup":18}],53:[function(require,module,exports){ -module.exports = function isBuffer(arg) { - return arg && typeof arg === 'object' - && typeof arg.copy === 'function' - && typeof arg.fill === 'function' - && typeof arg.readUInt8 === 'function'; -} -},{}],54:[function(require,module,exports){ -(function (process,global){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -var formatRegExp = /%[sdj%]/g; -exports.format = function(f) { - if (!isString(f)) { - var objects = []; - for (var i = 0; i < arguments.length; i++) { - objects.push(inspect(arguments[i])); - } - return objects.join(' '); - } - - var i = 1; - var args = arguments; - var len = args.length; - var str = String(f).replace(formatRegExp, function(x) { - if (x === '%%') return '%'; - if (i >= len) return x; - switch (x) { - case '%s': return String(args[i++]); - case '%d': return Number(args[i++]); - case '%j': - try { - return JSON.stringify(args[i++]); - } catch (_) { - return '[Circular]'; - } - default: - return x; - } - }); - for (var x = args[i]; i < len; x = args[++i]) { - if (isNull(x) || !isObject(x)) { - str += ' ' + x; - } else { - str += ' ' + inspect(x); - } - } - return str; -}; - - -// Mark that a method should not be used. -// Returns a modified function which warns once by default. -// If --no-deprecation is set, then it is a no-op. -exports.deprecate = function(fn, msg) { - // Allow for deprecating things in the process of starting up. - if (isUndefined(global.process)) { - return function() { - return exports.deprecate(fn, msg).apply(this, arguments); - }; - } - - if (process.noDeprecation === true) { - return fn; - } - - var warned = false; - function deprecated() { - if (!warned) { - if (process.throwDeprecation) { - throw new Error(msg); - } else if (process.traceDeprecation) { - console.trace(msg); - } else { - console.error(msg); - } - warned = true; - } - return fn.apply(this, arguments); - } - - return deprecated; -}; - - -var debugs = {}; -var debugEnviron; -exports.debuglog = function(set) { - if (isUndefined(debugEnviron)) - debugEnviron = process.env.NODE_DEBUG || ''; - set = set.toUpperCase(); - if (!debugs[set]) { - if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) { - var pid = process.pid; - debugs[set] = function() { - var msg = exports.format.apply(exports, arguments); - console.error('%s %d: %s', set, pid, msg); - }; - } else { - debugs[set] = function() {}; - } - } - return debugs[set]; -}; - - -/** - * Echos the value of a value. Trys to print the value out - * in the best way possible given the different types. - * - * @param {Object} obj The object to print out. - * @param {Object} opts Optional options object that alters the output. - */ -/* legacy: obj, showHidden, depth, colors*/ -function inspect(obj, opts) { - // default options - var ctx = { - seen: [], - stylize: stylizeNoColor - }; - // legacy... - if (arguments.length >= 3) ctx.depth = arguments[2]; - if (arguments.length >= 4) ctx.colors = arguments[3]; - if (isBoolean(opts)) { - // legacy... - ctx.showHidden = opts; - } else if (opts) { - // got an "options" object - exports._extend(ctx, opts); - } - // set default options - if (isUndefined(ctx.showHidden)) ctx.showHidden = false; - if (isUndefined(ctx.depth)) ctx.depth = 2; - if (isUndefined(ctx.colors)) ctx.colors = false; - if (isUndefined(ctx.customInspect)) ctx.customInspect = true; - if (ctx.colors) ctx.stylize = stylizeWithColor; - return formatValue(ctx, obj, ctx.depth); -} -exports.inspect = inspect; - - -// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics -inspect.colors = { - 'bold' : [1, 22], - 'italic' : [3, 23], - 'underline' : [4, 24], - 'inverse' : [7, 27], - 'white' : [37, 39], - 'grey' : [90, 39], - 'black' : [30, 39], - 'blue' : [34, 39], - 'cyan' : [36, 39], - 'green' : [32, 39], - 'magenta' : [35, 39], - 'red' : [31, 39], - 'yellow' : [33, 39] -}; - -// Don't use 'blue' not visible on cmd.exe -inspect.styles = { - 'special': 'cyan', - 'number': 'yellow', - 'boolean': 'yellow', - 'undefined': 'grey', - 'null': 'bold', - 'string': 'green', - 'date': 'magenta', - // "name": intentionally not styling - 'regexp': 'red' -}; - - -function stylizeWithColor(str, styleType) { - var style = inspect.styles[styleType]; - - if (style) { - return '\u001b[' + inspect.colors[style][0] + 'm' + str + - '\u001b[' + inspect.colors[style][1] + 'm'; - } else { - return str; - } -} - - -function stylizeNoColor(str, styleType) { - return str; -} - - -function arrayToHash(array) { - var hash = {}; - - array.forEach(function(val, idx) { - hash[val] = true; - }); - - return hash; -} - - -function formatValue(ctx, value, recurseTimes) { - // Provide a hook for user-specified inspect functions. - // Check that value is an object with an inspect function on it - if (ctx.customInspect && - value && - isFunction(value.inspect) && - // Filter out the util module, it's inspect function is special - value.inspect !== exports.inspect && - // Also filter out any prototype objects using the circular check. - !(value.constructor && value.constructor.prototype === value)) { - var ret = value.inspect(recurseTimes, ctx); - if (!isString(ret)) { - ret = formatValue(ctx, ret, recurseTimes); - } - return ret; - } - - // Primitive types cannot have properties - var primitive = formatPrimitive(ctx, value); - if (primitive) { - return primitive; - } - - // Look up the keys of the object. - var keys = Object.keys(value); - var visibleKeys = arrayToHash(keys); - - if (ctx.showHidden) { - keys = Object.getOwnPropertyNames(value); - } - - // IE doesn't make error fields non-enumerable - // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx - if (isError(value) - && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) { - return formatError(value); - } - - // Some type of object without properties can be shortcutted. - if (keys.length === 0) { - if (isFunction(value)) { - var name = value.name ? ': ' + value.name : ''; - return ctx.stylize('[Function' + name + ']', 'special'); - } - if (isRegExp(value)) { - return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); - } - if (isDate(value)) { - return ctx.stylize(Date.prototype.toString.call(value), 'date'); - } - if (isError(value)) { - return formatError(value); - } - } - - var base = '', array = false, braces = ['{', '}']; - - // Make Array say that they are Array - if (isArray(value)) { - array = true; - braces = ['[', ']']; - } - - // Make functions say that they are functions - if (isFunction(value)) { - var n = value.name ? ': ' + value.name : ''; - base = ' [Function' + n + ']'; - } - - // Make RegExps say that they are RegExps - if (isRegExp(value)) { - base = ' ' + RegExp.prototype.toString.call(value); - } - - // Make dates with properties first say the date - if (isDate(value)) { - base = ' ' + Date.prototype.toUTCString.call(value); - } - - // Make error with message first say the error - if (isError(value)) { - base = ' ' + formatError(value); - } - - if (keys.length === 0 && (!array || value.length == 0)) { - return braces[0] + base + braces[1]; - } - - if (recurseTimes < 0) { - if (isRegExp(value)) { - return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); - } else { - return ctx.stylize('[Object]', 'special'); - } - } - - ctx.seen.push(value); - - var output; - if (array) { - output = formatArray(ctx, value, recurseTimes, visibleKeys, keys); - } else { - output = keys.map(function(key) { - return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array); - }); - } - - ctx.seen.pop(); - - return reduceToSingleString(output, base, braces); -} - - -function formatPrimitive(ctx, value) { - if (isUndefined(value)) - return ctx.stylize('undefined', 'undefined'); - if (isString(value)) { - var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '') - .replace(/'/g, "\\'") - .replace(/\\"/g, '"') + '\''; - return ctx.stylize(simple, 'string'); - } - if (isNumber(value)) - return ctx.stylize('' + value, 'number'); - if (isBoolean(value)) - return ctx.stylize('' + value, 'boolean'); - // For some reason typeof null is "object", so special case here. - if (isNull(value)) - return ctx.stylize('null', 'null'); -} - - -function formatError(value) { - return '[' + Error.prototype.toString.call(value) + ']'; -} - - -function formatArray(ctx, value, recurseTimes, visibleKeys, keys) { - var output = []; - for (var i = 0, l = value.length; i < l; ++i) { - if (hasOwnProperty(value, String(i))) { - output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, - String(i), true)); - } else { - output.push(''); - } - } - keys.forEach(function(key) { - if (!key.match(/^\d+$/)) { - output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, - key, true)); - } - }); - return output; -} - - -function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) { - var name, str, desc; - desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] }; - if (desc.get) { - if (desc.set) { - str = ctx.stylize('[Getter/Setter]', 'special'); - } else { - str = ctx.stylize('[Getter]', 'special'); - } - } else { - if (desc.set) { - str = ctx.stylize('[Setter]', 'special'); - } - } - if (!hasOwnProperty(visibleKeys, key)) { - name = '[' + key + ']'; - } - if (!str) { - if (ctx.seen.indexOf(desc.value) < 0) { - if (isNull(recurseTimes)) { - str = formatValue(ctx, desc.value, null); - } else { - str = formatValue(ctx, desc.value, recurseTimes - 1); - } - if (str.indexOf('\n') > -1) { - if (array) { - str = str.split('\n').map(function(line) { - return ' ' + line; - }).join('\n').substr(2); - } else { - str = '\n' + str.split('\n').map(function(line) { - return ' ' + line; - }).join('\n'); - } - } - } else { - str = ctx.stylize('[Circular]', 'special'); - } - } - if (isUndefined(name)) { - if (array && key.match(/^\d+$/)) { - return str; - } - name = JSON.stringify('' + key); - if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) { - name = name.substr(1, name.length - 2); - name = ctx.stylize(name, 'name'); - } else { - name = name.replace(/'/g, "\\'") - .replace(/\\"/g, '"') - .replace(/(^"|"$)/g, "'"); - name = ctx.stylize(name, 'string'); - } - } - - return name + ': ' + str; -} - - -function reduceToSingleString(output, base, braces) { - var numLinesEst = 0; - var length = output.reduce(function(prev, cur) { - numLinesEst++; - if (cur.indexOf('\n') >= 0) numLinesEst++; - return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1; - }, 0); - - if (length > 60) { - return braces[0] + - (base === '' ? '' : base + '\n ') + - ' ' + - output.join(',\n ') + - ' ' + - braces[1]; - } - - return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1]; -} - - -// NOTE: These type checking functions intentionally don't use `instanceof` -// because it is fragile and can be easily faked with `Object.create()`. -function isArray(ar) { - return Array.isArray(ar); -} -exports.isArray = isArray; - -function isBoolean(arg) { - return typeof arg === 'boolean'; -} -exports.isBoolean = isBoolean; - -function isNull(arg) { - return arg === null; -} -exports.isNull = isNull; - -function isNullOrUndefined(arg) { - return arg == null; -} -exports.isNullOrUndefined = isNullOrUndefined; - -function isNumber(arg) { - return typeof arg === 'number'; -} -exports.isNumber = isNumber; - -function isString(arg) { - return typeof arg === 'string'; -} -exports.isString = isString; - -function isSymbol(arg) { - return typeof arg === 'symbol'; -} -exports.isSymbol = isSymbol; - -function isUndefined(arg) { - return arg === void 0; -} -exports.isUndefined = isUndefined; - -function isRegExp(re) { - return isObject(re) && objectToString(re) === '[object RegExp]'; -} -exports.isRegExp = isRegExp; - -function isObject(arg) { - return typeof arg === 'object' && arg !== null; -} -exports.isObject = isObject; - -function isDate(d) { - return isObject(d) && objectToString(d) === '[object Date]'; -} -exports.isDate = isDate; - -function isError(e) { - return isObject(e) && - (objectToString(e) === '[object Error]' || e instanceof Error); -} -exports.isError = isError; - -function isFunction(arg) { - return typeof arg === 'function'; -} -exports.isFunction = isFunction; - -function isPrimitive(arg) { - return arg === null || - typeof arg === 'boolean' || - typeof arg === 'number' || - typeof arg === 'string' || - typeof arg === 'symbol' || // ES6 symbol - typeof arg === 'undefined'; -} -exports.isPrimitive = isPrimitive; - -exports.isBuffer = require('./support/isBuffer'); - -function objectToString(o) { - return Object.prototype.toString.call(o); -} - - -function pad(n) { - return n < 10 ? '0' + n.toString(10) : n.toString(10); -} - - -var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', - 'Oct', 'Nov', 'Dec']; - -// 26 Feb 16:19:34 -function timestamp() { - var d = new Date(); - var time = [pad(d.getHours()), - pad(d.getMinutes()), - pad(d.getSeconds())].join(':'); - return [d.getDate(), months[d.getMonth()], time].join(' '); -} - - -// log is just a thin wrapper to console.log that prepends a timestamp -exports.log = function() { - console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments)); -}; - - -/** - * Inherit the prototype methods from one constructor into another. - * - * The Function.prototype.inherits from lang.js rewritten as a standalone - * function (not on Function.prototype). NOTE: If this file is to be loaded - * during bootstrapping this function needs to be rewritten using some native - * functions as prototype setup using normal JavaScript does not work as - * expected during bootstrapping (see mirror.js in r114903). - * - * @param {function} ctor Constructor function which needs to inherit the - * prototype. - * @param {function} superCtor Constructor function to inherit prototype from. - */ -exports.inherits = require('inherits'); - -exports._extend = function(origin, add) { - // Don't do anything if add isn't an object - if (!add || !isObject(add)) return origin; - - var keys = Object.keys(add); - var i = keys.length; - while (i--) { - origin[keys[i]] = add[keys[i]]; - } - return origin; -}; - -function hasOwnProperty(obj, prop) { - return Object.prototype.hasOwnProperty.call(obj, prop); -} - -}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"./support/isBuffer":53,"_process":30,"inherits":52}],55:[function(require,module,exports){ -(function (process,global){ -'use strict' - -var Transform = require('readable-stream').Transform -var duplexify = require('duplexify') -var WS = require('ws') -var Buffer = require('safe-buffer').Buffer - -module.exports = WebSocketStream - -function buildProxy (options, socketWrite, socketEnd) { - var proxy = new Transform({ - objectMode: options.objectMode - }) - - proxy._write = socketWrite - proxy._flush = socketEnd - - return proxy -} - -function WebSocketStream(target, protocols, options) { - var stream, socket - - var isBrowser = process.title === 'browser' - var isNative = !!global.WebSocket - var socketWrite = isBrowser ? socketWriteBrowser : socketWriteNode - - if (protocols && !Array.isArray(protocols) && 'object' === typeof protocols) { - // accept the "options" Object as the 2nd argument - options = protocols - protocols = null - - if (typeof options.protocol === 'string' || Array.isArray(options.protocol)) { - protocols = options.protocol; - } - } - - if (!options) options = {} - - if (options.objectMode === undefined) { - options.objectMode = !(options.binary === true || options.binary === undefined) - } - - var proxy = buildProxy(options, socketWrite, socketEnd) - - if (!options.objectMode) { - proxy._writev = writev - } - - // browser only: sets the maximum socket buffer size before throttling - var bufferSize = options.browserBufferSize || 1024 * 512 - - // browser only: how long to wait when throttling - var bufferTimeout = options.browserBufferTimeout || 1000 - - // use existing WebSocket object that was passed in - if (typeof target === 'object') { - socket = target - // otherwise make a new one - } else { - // special constructor treatment for native websockets in browsers, see - // https://github.com/maxogden/websocket-stream/issues/82 - if (isNative && isBrowser) { - socket = new WS(target, protocols) - } else { - socket = new WS(target, protocols, options) - } - - socket.binaryType = 'arraybuffer' - } - - // was already open when passed in - if (socket.readyState === socket.OPEN) { - stream = proxy - } else { - stream = duplexify.obj() - socket.onopen = onopen - } - - stream.socket = socket - - socket.onclose = onclose - socket.onerror = onerror - socket.onmessage = onmessage - - proxy.on('close', destroy) - - var coerceToBuffer = !options.objectMode - - function socketWriteNode(chunk, enc, next) { - // avoid errors, this never happens unless - // destroy() is called - if (socket.readyState !== socket.OPEN) { - next() - return - } - - if (coerceToBuffer && typeof chunk === 'string') { - chunk = Buffer.from(chunk, 'utf8') - } - socket.send(chunk, next) - } - - function socketWriteBrowser(chunk, enc, next) { - if (socket.bufferedAmount > bufferSize) { - setTimeout(socketWriteBrowser, bufferTimeout, chunk, enc, next) - return - } - - if (coerceToBuffer && typeof chunk === 'string') { - chunk = Buffer.from(chunk, 'utf8') - } - - try { - socket.send(chunk) - } catch(err) { - return next(err) - } - - next() - } - - function socketEnd(done) { - socket.close() - done() - } - - function onopen() { - stream.setReadable(proxy) - stream.setWritable(proxy) - stream.emit('connect') - } - - function onclose() { - stream.end() - stream.destroy() - } - - function onerror(err) { - stream.destroy(err) - } - - function onmessage(event) { - var data = event.data - if (data instanceof ArrayBuffer) data = Buffer.from(data) - else data = Buffer.from(data, 'utf8') - proxy.push(data) - } - - function destroy() { - socket.close() - } - - // this is to be enabled only if objectMode is false - function writev (chunks, cb) { - var buffers = new Array(chunks.length) - for (var i = 0; i < chunks.length; i++) { - if (typeof chunks[i].chunk === 'string') { - buffers[i] = Buffer.from(chunks[i], 'utf8') - } else { - buffers[i] = chunks[i].chunk - } - } - - this._write(Buffer.concat(buffers), 'binary', cb) - } - - return stream -} - -}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"_process":30,"duplexify":14,"readable-stream":44,"safe-buffer":46,"ws":56}],56:[function(require,module,exports){ - -var ws = null - -if (typeof WebSocket !== 'undefined') { - ws = WebSocket -} else if (typeof MozWebSocket !== 'undefined') { - ws = MozWebSocket -} else if (typeof window !== 'undefined') { - ws = window.WebSocket || window.MozWebSocket -} - -module.exports = ws - -},{}],57:[function(require,module,exports){ -// Returns a wrapper function that returns a wrapped callback -// The wrapper function should do some stuff, and return a -// presumably different callback function. -// This makes sure that own properties are retained, so that -// decorations and such are not lost along the way. -module.exports = wrappy -function wrappy (fn, cb) { - if (fn && cb) return wrappy(fn)(cb) - - if (typeof fn !== 'function') - throw new TypeError('need wrapper function') - - Object.keys(fn).forEach(function (k) { - wrapper[k] = fn[k] - }) - - return wrapper - - function wrapper() { - var args = new Array(arguments.length) - for (var i = 0; i < args.length; i++) { - args[i] = arguments[i] - } - var ret = fn.apply(this, args) - var cb = args[args.length-1] - if (typeof ret === 'function' && ret !== cb) { - Object.keys(cb).forEach(function (k) { - ret[k] = cb[k] - }) - } - return ret - } -} - -},{}],58:[function(require,module,exports){ -module.exports = extend - -var hasOwnProperty = Object.prototype.hasOwnProperty; - -function extend() { - var target = {} - - for (var i = 0; i < arguments.length; i++) { - var source = arguments[i] - - for (var key in source) { - if (hasOwnProperty.call(source, key)) { - target[key] = source[key] - } - } - } - - return target -} - -},{}]},{},[8])(8) -}); diff --git a/webpack.config.js b/webpack.config.js index b1b9e0f..a5fcd31 100644 --- a/webpack.config.js +++ b/webpack.config.js @@ -19,7 +19,7 @@ module.exports = { extensions: ['.ts', '.js'] }, - entry: ['./vendor/mqtt.browserified.js', helpers.root('./src/index.ts')], + entry: ['./vendor/mqtt.min.js', helpers.root('./src/index.ts')], output: { path: helpers.root('bundles'),