mirror of
https://github.com/cloudflare/wrangler-action.git
synced 2024-11-30 05:34:45 +01:00
7499 lines
229 KiB
JavaScript
7499 lines
229 KiB
JavaScript
(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.stringify = 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<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
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(function (Buffer,setImmediate){(function (){
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"use strict";
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function _wrapNativeSuper(Class) { var _cache = typeof Map === "function" ? new Map() : undefined; _wrapNativeSuper = function _wrapNativeSuper(Class) { if (Class === null || !_isNativeFunction(Class)) return Class; if (typeof Class !== "function") { throw new TypeError("Super expression must either be null or a function"); } if (typeof _cache !== "undefined") { if (_cache.has(Class)) return _cache.get(Class); _cache.set(Class, Wrapper); } function Wrapper() { return _construct(Class, arguments, _getPrototypeOf(this).constructor); } Wrapper.prototype = Object.create(Class.prototype, { constructor: { value: Wrapper, enumerable: false, writable: true, configurable: true } }); return _setPrototypeOf(Wrapper, Class); }; return _wrapNativeSuper(Class); }
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function _construct(Parent, args, Class) { if (_isNativeReflectConstruct()) { _construct = Reflect.construct; } else { _construct = function _construct(Parent, args, Class) { var a = [null]; a.push.apply(a, args); var Constructor = Function.bind.apply(Parent, a); var instance = new Constructor(); if (Class) _setPrototypeOf(instance, Class.prototype); return instance; }; } return _construct.apply(null, arguments); }
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function _isNativeFunction(fn) { return Function.toString.call(fn).indexOf("[native code]") !== -1; }
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function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
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function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
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function _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
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function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
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function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
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function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e2) { throw _e2; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e3) { didErr = true; err = _e3; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
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function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
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function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
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function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) { symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); } keys.push.apply(keys, symbols); } return keys; }
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function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
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function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
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function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
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function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
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function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
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function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
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function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
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function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
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function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
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function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
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/*
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CSV Stringify
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Please look at the [project documentation](https://csv.js.org/stringify/) for
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additional information.
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*/
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var _require = require('stream'),
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Transform = _require.Transform;
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var bom_utf8 = Buffer.from([239, 187, 191]);
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var Stringifier = /*#__PURE__*/function (_Transform) {
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_inherits(Stringifier, _Transform);
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var _super = _createSuper(Stringifier);
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function Stringifier() {
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var _this;
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var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
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_classCallCheck(this, Stringifier);
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_this = _super.call(this, _objectSpread(_objectSpread({}, {
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writableObjectMode: true
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}), opts));
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var options = {};
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var err; // Merge with user options
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for (var opt in opts) {
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options[underscore(opt)] = opts[opt];
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}
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if (err = _this.normalize(options)) throw err;
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switch (options.record_delimiter) {
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case 'auto':
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options.record_delimiter = null;
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break;
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case 'unix':
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options.record_delimiter = "\n";
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break;
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case 'mac':
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options.record_delimiter = "\r";
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break;
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case 'windows':
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options.record_delimiter = "\r\n";
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break;
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case 'ascii':
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options.record_delimiter = "\x1E";
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break;
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case 'unicode':
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options.record_delimiter = "\u2028";
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break;
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} // Expose options
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_this.options = options; // Internal state
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_this.state = {
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stop: false
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}; // Information
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_this.info = {
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records: 0
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};
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return _this;
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}
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_createClass(Stringifier, [{
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key: "normalize",
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value: function normalize(options) {
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// Normalize option `bom`
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if (options.bom === undefined || options.bom === null || options.bom === false) {
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options.bom = false;
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} else if (options.bom !== true) {
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return new CsvError('CSV_OPTION_BOOLEAN_INVALID_TYPE', ['option `bom` is optional and must be a boolean value,', "got ".concat(JSON.stringify(options.bom))]);
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} // Normalize option `delimiter`
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if (options.delimiter === undefined || options.delimiter === null) {
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options.delimiter = ',';
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} else if (Buffer.isBuffer(options.delimiter)) {
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options.delimiter = options.delimiter.toString();
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} else if (typeof options.delimiter !== 'string') {
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return new CsvError('CSV_OPTION_DELIMITER_INVALID_TYPE', ['option `delimiter` must be a buffer or a string,', "got ".concat(JSON.stringify(options.delimiter))]);
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} // Normalize option `quote`
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if (options.quote === undefined || options.quote === null) {
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options.quote = '"';
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} else if (options.quote === true) {
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options.quote = '"';
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} else if (options.quote === false) {
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options.quote = '';
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} else if (Buffer.isBuffer(options.quote)) {
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options.quote = options.quote.toString();
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} else if (typeof options.quote !== 'string') {
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return new CsvError('CSV_OPTION_QUOTE_INVALID_TYPE', ['option `quote` must be a boolean, a buffer or a string,', "got ".concat(JSON.stringify(options.quote))]);
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} // Normalize option `quoted`
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if (options.quoted === undefined || options.quoted === null) {
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options.quoted = false;
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} else {// todo
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} // Normalize option `quoted_empty`
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if (options.quoted_empty === undefined || options.quoted_empty === null) {
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options.quoted_empty = undefined;
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} else {// todo
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} // Normalize option `quoted_match`
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if (options.quoted_match === undefined || options.quoted_match === null || options.quoted_match === false) {
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options.quoted_match = null;
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} else if (!Array.isArray(options.quoted_match)) {
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options.quoted_match = [options.quoted_match];
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}
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if (options.quoted_match) {
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var _iterator = _createForOfIteratorHelper(options.quoted_match),
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_step;
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try {
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for (_iterator.s(); !(_step = _iterator.n()).done;) {
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var quoted_match = _step.value;
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var isString = typeof quoted_match === 'string';
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var isRegExp = quoted_match instanceof RegExp;
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if (!isString && !isRegExp) {
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return Error("Invalid Option: quoted_match must be a string or a regex, got ".concat(JSON.stringify(quoted_match)));
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}
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}
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} catch (err) {
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_iterator.e(err);
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} finally {
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_iterator.f();
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}
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} // Normalize option `quoted_string`
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if (options.quoted_string === undefined || options.quoted_string === null) {
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options.quoted_string = false;
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} else {// todo
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} // Normalize option `eof`
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if (options.eof === undefined || options.eof === null) {
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options.eof = true;
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} else {// todo
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} // Normalize option `escape`
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if (options.escape === undefined || options.escape === null) {
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options.escape = '"';
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} else if (Buffer.isBuffer(options.escape)) {
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options.escape = options.escape.toString();
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} else if (typeof options.escape !== 'string') {
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return Error("Invalid Option: escape must be a buffer or a string, got ".concat(JSON.stringify(options.escape)));
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}
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if (options.escape.length > 1) {
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return Error("Invalid Option: escape must be one character, got ".concat(options.escape.length, " characters"));
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} // Normalize option `header`
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if (options.header === undefined || options.header === null) {
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options.header = false;
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} else {// todo
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} // Normalize option `columns`
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options.columns = this.normalize_columns(options.columns); // Normalize option `quoted`
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if (options.quoted === undefined || options.quoted === null) {
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options.quoted = false;
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} else {// todo
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} // Normalize option `cast`
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if (options.cast === undefined || options.cast === null) {
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options.cast = {};
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} else {// todo
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} // Normalize option cast.bigint
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if (options.cast.bigint === undefined || options.cast.bigint === null) {
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// Cast boolean to string by default
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options.cast.bigint = function (value) {
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return '' + value;
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};
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} // Normalize option cast.boolean
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if (options.cast["boolean"] === undefined || options.cast["boolean"] === null) {
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// Cast boolean to string by default
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options.cast["boolean"] = function (value) {
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return value ? '1' : '';
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};
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} // Normalize option cast.date
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if (options.cast.date === undefined || options.cast.date === null) {
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// Cast date to timestamp string by default
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options.cast.date = function (value) {
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return '' + value.getTime();
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};
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} // Normalize option cast.number
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if (options.cast.number === undefined || options.cast.number === null) {
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// Cast number to string using native casting by default
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options.cast.number = function (value) {
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return '' + value;
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};
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} // Normalize option cast.object
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if (options.cast.object === undefined || options.cast.object === null) {
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// Stringify object as JSON by default
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options.cast.object = function (value) {
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return JSON.stringify(value);
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};
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} // Normalize option cast.string
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if (options.cast.string === undefined || options.cast.string === null) {
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// Leave string untouched
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options.cast.string = function (value) {
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return value;
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};
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} // Normalize option `record_delimiter`
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if (options.record_delimiter === undefined || options.record_delimiter === null) {
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options.record_delimiter = '\n';
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} else if (Buffer.isBuffer(options.record_delimiter)) {
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options.record_delimiter = options.record_delimiter.toString();
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} else if (typeof options.record_delimiter !== 'string') {
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return Error("Invalid Option: record_delimiter must be a buffer or a string, got ".concat(JSON.stringify(options.record_delimiter)));
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}
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}
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}, {
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key: "_transform",
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value: function _transform(chunk, encoding, callback) {
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if (this.state.stop === true) {
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return;
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} // Chunk validation
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if (!Array.isArray(chunk) && _typeof(chunk) !== 'object') {
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this.state.stop = true;
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return callback(Error("Invalid Record: expect an array or an object, got ".concat(JSON.stringify(chunk))));
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} // Detect columns from the first record
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|
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if (this.info.records === 0) {
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if (Array.isArray(chunk)) {
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if (this.options.header === true && !this.options.columns) {
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this.state.stop = true;
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return callback(Error('Undiscoverable Columns: header option requires column option or object records'));
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}
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} else if (this.options.columns === undefined || this.options.columns === null) {
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this.options.columns = this.normalize_columns(Object.keys(chunk));
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}
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} // Emit the header
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if (this.info.records === 0) {
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this.bom();
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this.headers();
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} // Emit and stringify the record if an object or an array
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try {
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this.emit('record', chunk, this.info.records);
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} catch (err) {
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this.state.stop = true;
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return this.emit('error', err);
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} // Convert the record into a string
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var chunk_string;
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if (this.options.eof) {
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chunk_string = this.stringify(chunk);
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|
if (chunk_string === undefined) {
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return;
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} else {
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chunk_string = chunk_string + this.options.record_delimiter;
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}
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} else {
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chunk_string = this.stringify(chunk);
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if (chunk_string === undefined) {
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return;
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} else {
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if (this.options.header || this.info.records) {
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chunk_string = this.options.record_delimiter + chunk_string;
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}
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}
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} // Emit the csv
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this.info.records++;
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this.push(chunk_string);
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callback();
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}
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}, {
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key: "_flush",
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value: function _flush(callback) {
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if (this.info.records === 0) {
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this.bom();
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this.headers();
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}
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callback();
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}
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}, {
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|
key: "stringify",
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|
value: function stringify(chunk) {
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var _this2 = this;
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var chunkIsHeader = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
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|
|
if (_typeof(chunk) !== 'object') {
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return chunk;
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}
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var _this$options = this.options,
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columns = _this$options.columns,
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header = _this$options.header;
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var record = []; // Record is an array
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if (Array.isArray(chunk)) {
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// We are getting an array but the user has specified output columns. In
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// this case, we respect the columns indexes
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if (columns) {
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chunk.splice(columns.length);
|
|
} // Cast record elements
|
|
|
|
|
|
for (var _i = 0; _i < chunk.length; _i++) {
|
|
var field = chunk[_i];
|
|
|
|
var _this$__cast = this.__cast(field, {
|
|
index: _i,
|
|
column: _i,
|
|
records: this.info.records,
|
|
header: chunkIsHeader
|
|
}),
|
|
_this$__cast2 = _slicedToArray(_this$__cast, 2),
|
|
err = _this$__cast2[0],
|
|
value = _this$__cast2[1];
|
|
|
|
if (err) {
|
|
this.emit('error', err);
|
|
return;
|
|
}
|
|
|
|
record[_i] = [value, field];
|
|
} // Record is a literal object
|
|
|
|
} else {
|
|
if (columns) {
|
|
for (var _i2 = 0; _i2 < columns.length; _i2++) {
|
|
var _field = get(chunk, columns[_i2].key);
|
|
|
|
var _this$__cast3 = this.__cast(_field, {
|
|
index: _i2,
|
|
column: columns[_i2].key,
|
|
records: this.info.records,
|
|
header: chunkIsHeader
|
|
}),
|
|
_this$__cast4 = _slicedToArray(_this$__cast3, 2),
|
|
_err = _this$__cast4[0],
|
|
_value = _this$__cast4[1];
|
|
|
|
if (_err) {
|
|
this.emit('error', _err);
|
|
return;
|
|
}
|
|
|
|
record[_i2] = [_value, _field];
|
|
}
|
|
} else {
|
|
var _iterator2 = _createForOfIteratorHelper(chunk),
|
|
_step2;
|
|
|
|
try {
|
|
for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
|
|
var column = _step2.value;
|
|
var _field2 = chunk[column];
|
|
|
|
var _this$__cast5 = this.__cast(_field2, {
|
|
index: i,
|
|
column: columns[i].key,
|
|
records: this.info.records,
|
|
header: chunkIsHeader
|
|
}),
|
|
_this$__cast6 = _slicedToArray(_this$__cast5, 2),
|
|
_err2 = _this$__cast6[0],
|
|
_value2 = _this$__cast6[1];
|
|
|
|
if (_err2) {
|
|
this.emit('error', _err2);
|
|
return;
|
|
}
|
|
|
|
record.push([_value2, _field2]);
|
|
}
|
|
} catch (err) {
|
|
_iterator2.e(err);
|
|
} finally {
|
|
_iterator2.f();
|
|
}
|
|
}
|
|
}
|
|
|
|
var csvrecord = '';
|
|
|
|
var _loop = function _loop(_i3) {
|
|
var options = void 0,
|
|
err = void 0;
|
|
|
|
var _record$_i = _slicedToArray(record[_i3], 2),
|
|
value = _record$_i[0],
|
|
field = _record$_i[1];
|
|
|
|
if (typeof value === "string") {
|
|
options = _this2.options;
|
|
} else if (isObject(value)) {
|
|
// let { value, ...options } = value
|
|
options = value;
|
|
value = options.value;
|
|
delete options.value;
|
|
|
|
if (typeof value !== "string" && value !== undefined && value !== null) {
|
|
_this2.emit("error", Error("Invalid Casting Value: returned value must return a string, null or undefined, got ".concat(JSON.stringify(value))));
|
|
|
|
return {
|
|
v: void 0
|
|
};
|
|
}
|
|
|
|
options = _objectSpread(_objectSpread({}, _this2.options), options);
|
|
|
|
if (err = _this2.normalize(options)) {
|
|
_this2.emit("error", err);
|
|
|
|
return {
|
|
v: void 0
|
|
};
|
|
}
|
|
} else if (value === undefined || value === null) {
|
|
options = _this2.options;
|
|
} else {
|
|
_this2.emit("error", Error("Invalid Casting Value: returned value must return a string, an object, null or undefined, got ".concat(JSON.stringify(value))));
|
|
|
|
return {
|
|
v: void 0
|
|
};
|
|
}
|
|
|
|
var _options = options,
|
|
delimiter = _options.delimiter,
|
|
escape = _options.escape,
|
|
quote = _options.quote,
|
|
quoted = _options.quoted,
|
|
quoted_empty = _options.quoted_empty,
|
|
quoted_string = _options.quoted_string,
|
|
quoted_match = _options.quoted_match,
|
|
record_delimiter = _options.record_delimiter;
|
|
|
|
if (value) {
|
|
if (typeof value !== 'string') {
|
|
_this2.emit("error", Error("Formatter must return a string, null or undefined, got ".concat(JSON.stringify(value))));
|
|
|
|
return {
|
|
v: null
|
|
};
|
|
}
|
|
|
|
var containsdelimiter = delimiter.length && value.indexOf(delimiter) >= 0;
|
|
var containsQuote = quote !== '' && value.indexOf(quote) >= 0;
|
|
var containsEscape = value.indexOf(escape) >= 0 && escape !== quote;
|
|
var containsRecordDelimiter = value.indexOf(record_delimiter) >= 0;
|
|
var quotedString = quoted_string && typeof field === 'string';
|
|
var quotedMatch = quoted_match && quoted_match.filter(function (quoted_match) {
|
|
if (typeof quoted_match === 'string') {
|
|
return value.indexOf(quoted_match) !== -1;
|
|
} else {
|
|
return quoted_match.test(value);
|
|
}
|
|
});
|
|
quotedMatch = quotedMatch && quotedMatch.length > 0;
|
|
var shouldQuote = containsQuote === true || containsdelimiter || containsRecordDelimiter || quoted || quotedString || quotedMatch;
|
|
|
|
if (shouldQuote === true && containsEscape === true) {
|
|
var regexp = escape === '\\' ? new RegExp(escape + escape, 'g') : new RegExp(escape, 'g');
|
|
value = value.replace(regexp, escape + escape);
|
|
}
|
|
|
|
if (containsQuote === true) {
|
|
var _regexp = new RegExp(quote, 'g');
|
|
|
|
value = value.replace(_regexp, escape + quote);
|
|
}
|
|
|
|
if (shouldQuote === true) {
|
|
value = quote + value + quote;
|
|
}
|
|
|
|
csvrecord += value;
|
|
} else if (quoted_empty === true || field === '' && quoted_string === true && quoted_empty !== false) {
|
|
csvrecord += quote + quote;
|
|
}
|
|
|
|
if (_i3 !== record.length - 1) {
|
|
csvrecord += delimiter;
|
|
}
|
|
};
|
|
|
|
for (var _i3 = 0; _i3 < record.length; _i3++) {
|
|
var _ret = _loop(_i3);
|
|
|
|
if (_typeof(_ret) === "object") return _ret.v;
|
|
}
|
|
|
|
return csvrecord;
|
|
}
|
|
}, {
|
|
key: "bom",
|
|
value: function bom() {
|
|
if (this.options.bom !== true) {
|
|
return;
|
|
}
|
|
|
|
this.push(bom_utf8);
|
|
}
|
|
}, {
|
|
key: "headers",
|
|
value: function headers() {
|
|
if (this.options.header === false) {
|
|
return;
|
|
}
|
|
|
|
if (this.options.columns === undefined) {
|
|
return;
|
|
}
|
|
|
|
var headers = this.options.columns.map(function (column) {
|
|
return column.header;
|
|
});
|
|
|
|
if (this.options.eof) {
|
|
headers = this.stringify(headers, true) + this.options.record_delimiter;
|
|
} else {
|
|
headers = this.stringify(headers);
|
|
}
|
|
|
|
this.push(headers);
|
|
}
|
|
}, {
|
|
key: "__cast",
|
|
value: function __cast(value, context) {
|
|
var type = _typeof(value);
|
|
|
|
try {
|
|
if (type === 'string') {
|
|
// Fine for 99% of the cases
|
|
return [undefined, this.options.cast.string(value, context)];
|
|
} else if (type === 'bigint') {
|
|
return [undefined, this.options.cast.bigint(value, context)];
|
|
} else if (type === 'number') {
|
|
return [undefined, this.options.cast.number(value, context)];
|
|
} else if (type === 'boolean') {
|
|
return [undefined, this.options.cast["boolean"](value, context)];
|
|
} else if (value instanceof Date) {
|
|
return [undefined, this.options.cast.date(value, context)];
|
|
} else if (type === 'object' && value !== null) {
|
|
return [undefined, this.options.cast.object(value, context)];
|
|
} else {
|
|
return [undefined, value, value];
|
|
}
|
|
} catch (err) {
|
|
return [err];
|
|
}
|
|
}
|
|
}, {
|
|
key: "normalize_columns",
|
|
value: function normalize_columns(columns) {
|
|
if (columns === undefined || columns === null) {
|
|
return undefined;
|
|
}
|
|
|
|
if (_typeof(columns) !== 'object') {
|
|
throw Error('Invalid option "columns": expect an array or an object');
|
|
}
|
|
|
|
if (!Array.isArray(columns)) {
|
|
var newcolumns = [];
|
|
|
|
for (var k in columns) {
|
|
newcolumns.push({
|
|
key: k,
|
|
header: columns[k]
|
|
});
|
|
}
|
|
|
|
columns = newcolumns;
|
|
} else {
|
|
var _newcolumns = [];
|
|
|
|
var _iterator3 = _createForOfIteratorHelper(columns),
|
|
_step3;
|
|
|
|
try {
|
|
for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
|
|
var column = _step3.value;
|
|
|
|
if (typeof column === 'string') {
|
|
_newcolumns.push({
|
|
key: column,
|
|
header: column
|
|
});
|
|
} else if (_typeof(column) === 'object' && column !== undefined && !Array.isArray(column)) {
|
|
if (!column.key) {
|
|
throw Error('Invalid column definition: property "key" is required');
|
|
}
|
|
|
|
if (column.header === undefined) {
|
|
column.header = column.key;
|
|
}
|
|
|
|
_newcolumns.push(column);
|
|
} else {
|
|
throw Error('Invalid column definition: expect a string or an object');
|
|
}
|
|
}
|
|
} catch (err) {
|
|
_iterator3.e(err);
|
|
} finally {
|
|
_iterator3.f();
|
|
}
|
|
|
|
columns = _newcolumns;
|
|
}
|
|
|
|
return columns;
|
|
}
|
|
}]);
|
|
|
|
return Stringifier;
|
|
}(Transform);
|
|
|
|
var stringify = function stringify() {
|
|
var data, options, callback;
|
|
|
|
for (var _i4 in arguments) {
|
|
var argument = arguments[_i4];
|
|
|
|
var type = _typeof(argument);
|
|
|
|
if (data === undefined && Array.isArray(argument)) {
|
|
data = argument;
|
|
} else if (options === undefined && isObject(argument)) {
|
|
options = argument;
|
|
} else if (callback === undefined && type === 'function') {
|
|
callback = argument;
|
|
} else {
|
|
throw new CsvError('CSV_INVALID_ARGUMENT', ['Invalid argument:', "got ".concat(JSON.stringify(argument), " at index ").concat(_i4)]);
|
|
}
|
|
}
|
|
|
|
var stringifier = new Stringifier(options);
|
|
|
|
if (callback) {
|
|
var chunks = [];
|
|
stringifier.on('readable', function () {
|
|
var chunk;
|
|
|
|
while ((chunk = this.read()) !== null) {
|
|
chunks.push(chunk);
|
|
}
|
|
});
|
|
stringifier.on('error', function (err) {
|
|
callback(err);
|
|
});
|
|
stringifier.on('end', function () {
|
|
callback(undefined, chunks.join(''));
|
|
});
|
|
}
|
|
|
|
if (data !== undefined) {
|
|
// Give a chance for events to be registered later
|
|
if (typeof setImmediate === 'function') {
|
|
setImmediate(function () {
|
|
var _iterator4 = _createForOfIteratorHelper(data),
|
|
_step4;
|
|
|
|
try {
|
|
for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
|
|
var record = _step4.value;
|
|
stringifier.write(record);
|
|
}
|
|
} catch (err) {
|
|
_iterator4.e(err);
|
|
} finally {
|
|
_iterator4.f();
|
|
}
|
|
|
|
stringifier.end();
|
|
});
|
|
} else {
|
|
var _iterator5 = _createForOfIteratorHelper(data),
|
|
_step5;
|
|
|
|
try {
|
|
for (_iterator5.s(); !(_step5 = _iterator5.n()).done;) {
|
|
var record = _step5.value;
|
|
stringifier.write(record);
|
|
}
|
|
} catch (err) {
|
|
_iterator5.e(err);
|
|
} finally {
|
|
_iterator5.f();
|
|
}
|
|
|
|
stringifier.end();
|
|
}
|
|
}
|
|
|
|
return stringifier;
|
|
};
|
|
|
|
var CsvError = /*#__PURE__*/function (_Error) {
|
|
_inherits(CsvError, _Error);
|
|
|
|
var _super2 = _createSuper(CsvError);
|
|
|
|
function CsvError(code, message) {
|
|
var _this3;
|
|
|
|
_classCallCheck(this, CsvError);
|
|
|
|
if (Array.isArray(message)) message = message.join(' ');
|
|
_this3 = _super2.call(this, message);
|
|
|
|
if (Error.captureStackTrace !== undefined) {
|
|
Error.captureStackTrace(_assertThisInitialized(_this3), CsvError);
|
|
}
|
|
|
|
_this3.code = code;
|
|
|
|
for (var _len = arguments.length, contexts = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
|
|
contexts[_key - 2] = arguments[_key];
|
|
}
|
|
|
|
for (var _i5 = 0, _contexts = contexts; _i5 < _contexts.length; _i5++) {
|
|
var context = _contexts[_i5];
|
|
|
|
for (var key in context) {
|
|
var value = context[key];
|
|
_this3[key] = Buffer.isBuffer(value) ? value.toString() : value == null ? value : JSON.parse(JSON.stringify(value));
|
|
}
|
|
}
|
|
|
|
return _this3;
|
|
}
|
|
|
|
return CsvError;
|
|
}( /*#__PURE__*/_wrapNativeSuper(Error));
|
|
|
|
stringify.Stringifier = Stringifier;
|
|
stringify.CsvError = CsvError;
|
|
module.exports = stringify;
|
|
|
|
var isObject = function isObject(obj) {
|
|
return _typeof(obj) === 'object' && obj !== null && !Array.isArray(obj);
|
|
};
|
|
|
|
var underscore = function underscore(str) {
|
|
return str.replace(/([A-Z])/g, function (_, match) {
|
|
return '_' + match.toLowerCase();
|
|
});
|
|
}; // Lodash implementation of `get`
|
|
|
|
|
|
var charCodeOfDot = '.'.charCodeAt(0);
|
|
var reEscapeChar = /\\(\\)?/g;
|
|
var rePropName = RegExp( // Match anything that isn't a dot or bracket.
|
|
'[^.[\\]]+' + '|' + // Or match property names within brackets.
|
|
'\\[(?:' + // Match a non-string expression.
|
|
'([^"\'][^[]*)' + '|' + // Or match strings (supports escaping characters).
|
|
'(["\'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2' + ')\\]' + '|' + // Or match "" as the space between consecutive dots or empty brackets.
|
|
'(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))', 'g');
|
|
var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/;
|
|
var reIsPlainProp = /^\w*$/;
|
|
|
|
var getTag = function getTag(value) {
|
|
if (!value) value === undefined ? '[object Undefined]' : '[object Null]';
|
|
return Object.prototype.toString.call(value);
|
|
};
|
|
|
|
var isKey = function isKey(value, object) {
|
|
if (Array.isArray(value)) {
|
|
return false;
|
|
}
|
|
|
|
var type = _typeof(value);
|
|
|
|
if (type === 'number' || type === 'symbol' || type === 'boolean' || !value || isSymbol(value)) {
|
|
return true;
|
|
}
|
|
|
|
return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || object != null && value in Object(object);
|
|
};
|
|
|
|
var isSymbol = function isSymbol(value) {
|
|
var type = _typeof(value);
|
|
|
|
return type === 'symbol' || type === 'object' && value && getTag(value) === '[object Symbol]';
|
|
};
|
|
|
|
var stringToPath = function stringToPath(string) {
|
|
var result = [];
|
|
|
|
if (string.charCodeAt(0) === charCodeOfDot) {
|
|
result.push('');
|
|
}
|
|
|
|
string.replace(rePropName, function (match, expression, quote, subString) {
|
|
var key = match;
|
|
|
|
if (quote) {
|
|
key = subString.replace(reEscapeChar, '$1');
|
|
} else if (expression) {
|
|
key = expression.trim();
|
|
}
|
|
|
|
result.push(key);
|
|
});
|
|
return result;
|
|
};
|
|
|
|
var castPath = function castPath(value, object) {
|
|
if (Array.isArray(value)) {
|
|
return value;
|
|
} else {
|
|
return isKey(value, object) ? [value] : stringToPath(value);
|
|
}
|
|
};
|
|
|
|
var toKey = function toKey(value) {
|
|
if (typeof value === 'string' || isSymbol(value)) return value;
|
|
var result = "".concat(value);
|
|
return result == '0' && 1 / value == -INFINITY ? '-0' : result;
|
|
};
|
|
|
|
var get = function get(object, path) {
|
|
path = castPath(path, object);
|
|
var index = 0;
|
|
var length = path.length;
|
|
|
|
while (object != null && index < length) {
|
|
object = object[toKey(path[index++])];
|
|
}
|
|
|
|
return index && index === length ? object : undefined;
|
|
};
|
|
|
|
}).call(this)}).call(this,require("buffer").Buffer,require("timers").setImmediate)
|
|
},{"buffer":5,"stream":12,"timers":28}],2:[function(require,module,exports){
|
|
(function (Buffer){(function (){
|
|
"use strict";
|
|
|
|
function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
|
|
|
|
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
|
|
|
|
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
|
|
|
|
var stringify = require('.');
|
|
|
|
var _require = require('string_decoder'),
|
|
StringDecoder = _require.StringDecoder;
|
|
|
|
module.exports = function (records) {
|
|
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
|
|
var data = [];
|
|
|
|
if (Buffer.isBuffer(records)) {
|
|
var decoder = new StringDecoder();
|
|
records = decoder.write(records);
|
|
}
|
|
|
|
function onData(record) {
|
|
if (record) {
|
|
data.push(record.toString());
|
|
}
|
|
}
|
|
|
|
var stringifier = new stringify.Stringifier(options);
|
|
stringifier.on('data', onData);
|
|
|
|
var _iterator = _createForOfIteratorHelper(records),
|
|
_step;
|
|
|
|
try {
|
|
for (_iterator.s(); !(_step = _iterator.n()).done;) {
|
|
var record = _step.value;
|
|
stringifier.write(record);
|
|
}
|
|
} catch (err) {
|
|
_iterator.e(err);
|
|
} finally {
|
|
_iterator.f();
|
|
}
|
|
|
|
stringifier.end();
|
|
stringifier.off('data', onData);
|
|
return data.join('');
|
|
};
|
|
|
|
}).call(this)}).call(this,{"isBuffer":require("../node_modules/is-buffer/index.js")})
|
|
},{".":1,"../node_modules/is-buffer/index.js":9,"string_decoder":27}],3:[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
|
|
|
|
var i
|
|
for (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('')
|
|
}
|
|
|
|
},{}],4:[function(require,module,exports){
|
|
|
|
},{}],5:[function(require,module,exports){
|
|
(function (Buffer){(function (){
|
|
/*!
|
|
* The buffer module from node.js, for the browser.
|
|
*
|
|
* @author Feross Aboukhadijeh <https://feross.org>
|
|
* @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', {
|
|
enumerable: true,
|
|
get: function () {
|
|
if (!Buffer.isBuffer(this)) return undefined
|
|
return this.buffer
|
|
}
|
|
})
|
|
|
|
Object.defineProperty(Buffer.prototype, 'offset', {
|
|
enumerable: true,
|
|
get: function () {
|
|
if (!Buffer.isBuffer(this)) return undefined
|
|
return this.byteOffset
|
|
}
|
|
})
|
|
|
|
function createBuffer (length) {
|
|
if (length > K_MAX_LENGTH) {
|
|
throw new RangeError('The value "' + length + '" is invalid for option "size"')
|
|
}
|
|
// 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 TypeError(
|
|
'The "string" argument must be of type string. Received type number'
|
|
)
|
|
}
|
|
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 != null &&
|
|
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 === 'string') {
|
|
return fromString(value, encodingOrOffset)
|
|
}
|
|
|
|
if (ArrayBuffer.isView(value)) {
|
|
return fromArrayLike(value)
|
|
}
|
|
|
|
if (value == null) {
|
|
throw TypeError(
|
|
'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
|
|
'or Array-like Object. Received type ' + (typeof value)
|
|
)
|
|
}
|
|
|
|
if (isInstance(value, ArrayBuffer) ||
|
|
(value && isInstance(value.buffer, ArrayBuffer))) {
|
|
return fromArrayBuffer(value, encodingOrOffset, length)
|
|
}
|
|
|
|
if (typeof value === 'number') {
|
|
throw new TypeError(
|
|
'The "value" argument must not be of type number. Received type number'
|
|
)
|
|
}
|
|
|
|
var valueOf = value.valueOf && value.valueOf()
|
|
if (valueOf != null && valueOf !== value) {
|
|
return Buffer.from(valueOf, encodingOrOffset, length)
|
|
}
|
|
|
|
var b = fromObject(value)
|
|
if (b) return b
|
|
|
|
if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
|
|
typeof value[Symbol.toPrimitive] === 'function') {
|
|
return Buffer.from(
|
|
value[Symbol.toPrimitive]('string'), encodingOrOffset, length
|
|
)
|
|
}
|
|
|
|
throw new TypeError(
|
|
'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
|
|
'or Array-like Object. Received type ' + (typeof 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('The value "' + size + '" is invalid for option "size"')
|
|
}
|
|
}
|
|
|
|
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.length !== undefined) {
|
|
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)
|
|
}
|
|
}
|
|
|
|
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 &&
|
|
b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false
|
|
}
|
|
|
|
Buffer.compare = function compare (a, b) {
|
|
if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
|
|
if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
|
|
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
|
|
throw new TypeError(
|
|
'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
|
|
)
|
|
}
|
|
|
|
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 (isInstance(buf, Uint8Array)) {
|
|
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) || isInstance(string, ArrayBuffer)) {
|
|
return string.byteLength
|
|
}
|
|
if (typeof string !== 'string') {
|
|
throw new TypeError(
|
|
'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
|
|
'Received type ' + typeof string
|
|
)
|
|
}
|
|
|
|
var len = string.length
|
|
var mustMatch = (arguments.length > 2 && arguments[2] === true)
|
|
if (!mustMatch && 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':
|
|
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 mustMatch ? -1 : 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
|
|
str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
|
|
if (this.length > max) str += ' ... '
|
|
return '<Buffer ' + str + '>'
|
|
}
|
|
|
|
Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
|
|
if (isInstance(target, Uint8Array)) {
|
|
target = Buffer.from(target, target.offset, target.byteLength)
|
|
}
|
|
if (!Buffer.isBuffer(target)) {
|
|
throw new TypeError(
|
|
'The "target" argument must be one of type Buffer or Uint8Array. ' +
|
|
'Received type ' + (typeof target)
|
|
)
|
|
}
|
|
|
|
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
|
|
: Buffer.from(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
|
|
}
|
|
|
|
// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
|
|
// the `instanceof` check but they should be treated as of that type.
|
|
// See: https://github.com/feross/buffer/issues/166
|
|
function isInstance (obj, type) {
|
|
return obj instanceof type ||
|
|
(obj != null && obj.constructor != null && obj.constructor.name != null &&
|
|
obj.constructor.name === type.name)
|
|
}
|
|
function numberIsNaN (obj) {
|
|
// For IE11 support
|
|
return obj !== obj // eslint-disable-line no-self-compare
|
|
}
|
|
|
|
}).call(this)}).call(this,require("buffer").Buffer)
|
|
},{"base64-js":3,"buffer":5,"ieee754":7}],6:[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 R = typeof Reflect === 'object' ? Reflect : null
|
|
var ReflectApply = R && typeof R.apply === 'function'
|
|
? R.apply
|
|
: function ReflectApply(target, receiver, args) {
|
|
return Function.prototype.apply.call(target, receiver, args);
|
|
}
|
|
|
|
var ReflectOwnKeys
|
|
if (R && typeof R.ownKeys === 'function') {
|
|
ReflectOwnKeys = R.ownKeys
|
|
} else if (Object.getOwnPropertySymbols) {
|
|
ReflectOwnKeys = function ReflectOwnKeys(target) {
|
|
return Object.getOwnPropertyNames(target)
|
|
.concat(Object.getOwnPropertySymbols(target));
|
|
};
|
|
} else {
|
|
ReflectOwnKeys = function ReflectOwnKeys(target) {
|
|
return Object.getOwnPropertyNames(target);
|
|
};
|
|
}
|
|
|
|
function ProcessEmitWarning(warning) {
|
|
if (console && console.warn) console.warn(warning);
|
|
}
|
|
|
|
var NumberIsNaN = Number.isNaN || function NumberIsNaN(value) {
|
|
return value !== value;
|
|
}
|
|
|
|
function EventEmitter() {
|
|
EventEmitter.init.call(this);
|
|
}
|
|
module.exports = EventEmitter;
|
|
module.exports.once = once;
|
|
|
|
// Backwards-compat with node 0.10.x
|
|
EventEmitter.EventEmitter = EventEmitter;
|
|
|
|
EventEmitter.prototype._events = undefined;
|
|
EventEmitter.prototype._eventsCount = 0;
|
|
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;
|
|
|
|
function checkListener(listener) {
|
|
if (typeof listener !== 'function') {
|
|
throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener);
|
|
}
|
|
}
|
|
|
|
Object.defineProperty(EventEmitter, 'defaultMaxListeners', {
|
|
enumerable: true,
|
|
get: function() {
|
|
return defaultMaxListeners;
|
|
},
|
|
set: function(arg) {
|
|
if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) {
|
|
throw new RangeError('The value of "defaultMaxListeners" is out of range. It must be a non-negative number. Received ' + arg + '.');
|
|
}
|
|
defaultMaxListeners = arg;
|
|
}
|
|
});
|
|
|
|
EventEmitter.init = function() {
|
|
|
|
if (this._events === undefined ||
|
|
this._events === Object.getPrototypeOf(this)._events) {
|
|
this._events = Object.create(null);
|
|
this._eventsCount = 0;
|
|
}
|
|
|
|
this._maxListeners = this._maxListeners || undefined;
|
|
};
|
|
|
|
// 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 || NumberIsNaN(n)) {
|
|
throw new RangeError('The value of "n" is out of range. It must be a non-negative number. Received ' + n + '.');
|
|
}
|
|
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);
|
|
};
|
|
|
|
EventEmitter.prototype.emit = function emit(type) {
|
|
var args = [];
|
|
for (var i = 1; i < arguments.length; i++) args.push(arguments[i]);
|
|
var doError = (type === 'error');
|
|
|
|
var events = this._events;
|
|
if (events !== undefined)
|
|
doError = (doError && events.error === undefined);
|
|
else if (!doError)
|
|
return false;
|
|
|
|
// If there is no 'error' event listener then throw.
|
|
if (doError) {
|
|
var er;
|
|
if (args.length > 0)
|
|
er = args[0];
|
|
if (er instanceof Error) {
|
|
// Note: The comments on the `throw` lines are intentional, they show
|
|
// up in Node's output if this results in an unhandled exception.
|
|
throw er; // Unhandled 'error' event
|
|
}
|
|
// At least give some kind of context to the user
|
|
var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : ''));
|
|
err.context = er;
|
|
throw err; // Unhandled 'error' event
|
|
}
|
|
|
|
var handler = events[type];
|
|
|
|
if (handler === undefined)
|
|
return false;
|
|
|
|
if (typeof handler === 'function') {
|
|
ReflectApply(handler, this, args);
|
|
} else {
|
|
var len = handler.length;
|
|
var listeners = arrayClone(handler, len);
|
|
for (var i = 0; i < len; ++i)
|
|
ReflectApply(listeners[i], this, args);
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
function _addListener(target, type, listener, prepend) {
|
|
var m;
|
|
var events;
|
|
var existing;
|
|
|
|
checkListener(listener);
|
|
|
|
events = target._events;
|
|
if (events === undefined) {
|
|
events = target._events = Object.create(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 !== undefined) {
|
|
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 === undefined) {
|
|
// 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];
|
|
// If we've already got an array, just append.
|
|
} else if (prepend) {
|
|
existing.unshift(listener);
|
|
} else {
|
|
existing.push(listener);
|
|
}
|
|
|
|
// Check for listener leak
|
|
m = _getMaxListeners(target);
|
|
if (m > 0 && existing.length > m && !existing.warned) {
|
|
existing.warned = true;
|
|
// No error code for this since it is a Warning
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
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;
|
|
ProcessEmitWarning(w);
|
|
}
|
|
}
|
|
|
|
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;
|
|
if (arguments.length === 0)
|
|
return this.listener.call(this.target);
|
|
return this.listener.apply(this.target, arguments);
|
|
}
|
|
}
|
|
|
|
function _onceWrap(target, type, listener) {
|
|
var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };
|
|
var wrapped = onceWrapper.bind(state);
|
|
wrapped.listener = listener;
|
|
state.wrapFn = wrapped;
|
|
return wrapped;
|
|
}
|
|
|
|
EventEmitter.prototype.once = function once(type, listener) {
|
|
checkListener(listener);
|
|
this.on(type, _onceWrap(this, type, listener));
|
|
return this;
|
|
};
|
|
|
|
EventEmitter.prototype.prependOnceListener =
|
|
function prependOnceListener(type, listener) {
|
|
checkListener(listener);
|
|
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;
|
|
|
|
checkListener(listener);
|
|
|
|
events = this._events;
|
|
if (events === undefined)
|
|
return this;
|
|
|
|
list = events[type];
|
|
if (list === undefined)
|
|
return this;
|
|
|
|
if (list === listener || list.listener === listener) {
|
|
if (--this._eventsCount === 0)
|
|
this._events = Object.create(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 !== undefined)
|
|
this.emit('removeListener', type, originalListener || listener);
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
EventEmitter.prototype.off = EventEmitter.prototype.removeListener;
|
|
|
|
EventEmitter.prototype.removeAllListeners =
|
|
function removeAllListeners(type) {
|
|
var listeners, events, i;
|
|
|
|
events = this._events;
|
|
if (events === undefined)
|
|
return this;
|
|
|
|
// not listening for removeListener, no need to emit
|
|
if (events.removeListener === undefined) {
|
|
if (arguments.length === 0) {
|
|
this._events = Object.create(null);
|
|
this._eventsCount = 0;
|
|
} else if (events[type] !== undefined) {
|
|
if (--this._eventsCount === 0)
|
|
this._events = Object.create(null);
|
|
else
|
|
delete events[type];
|
|
}
|
|
return this;
|
|
}
|
|
|
|
// emit removeListener for all listeners on all events
|
|
if (arguments.length === 0) {
|
|
var keys = Object.keys(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 = Object.create(null);
|
|
this._eventsCount = 0;
|
|
return this;
|
|
}
|
|
|
|
listeners = events[type];
|
|
|
|
if (typeof listeners === 'function') {
|
|
this.removeListener(type, listeners);
|
|
} else if (listeners !== undefined) {
|
|
// 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 === undefined)
|
|
return [];
|
|
|
|
var evlistener = events[type];
|
|
if (evlistener === undefined)
|
|
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 !== undefined) {
|
|
var evlistener = events[type];
|
|
|
|
if (typeof evlistener === 'function') {
|
|
return 1;
|
|
} else if (evlistener !== undefined) {
|
|
return evlistener.length;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
EventEmitter.prototype.eventNames = function eventNames() {
|
|
return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : [];
|
|
};
|
|
|
|
function arrayClone(arr, n) {
|
|
var copy = new Array(n);
|
|
for (var i = 0; i < n; ++i)
|
|
copy[i] = arr[i];
|
|
return copy;
|
|
}
|
|
|
|
function spliceOne(list, index) {
|
|
for (; index + 1 < list.length; index++)
|
|
list[index] = list[index + 1];
|
|
list.pop();
|
|
}
|
|
|
|
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 once(emitter, name) {
|
|
return new Promise(function (resolve, reject) {
|
|
function errorListener(err) {
|
|
emitter.removeListener(name, resolver);
|
|
reject(err);
|
|
}
|
|
|
|
function resolver() {
|
|
if (typeof emitter.removeListener === 'function') {
|
|
emitter.removeListener('error', errorListener);
|
|
}
|
|
resolve([].slice.call(arguments));
|
|
};
|
|
|
|
eventTargetAgnosticAddListener(emitter, name, resolver, { once: true });
|
|
if (name !== 'error') {
|
|
addErrorHandlerIfEventEmitter(emitter, errorListener, { once: true });
|
|
}
|
|
});
|
|
}
|
|
|
|
function addErrorHandlerIfEventEmitter(emitter, handler, flags) {
|
|
if (typeof emitter.on === 'function') {
|
|
eventTargetAgnosticAddListener(emitter, 'error', handler, flags);
|
|
}
|
|
}
|
|
|
|
function eventTargetAgnosticAddListener(emitter, name, listener, flags) {
|
|
if (typeof emitter.on === 'function') {
|
|
if (flags.once) {
|
|
emitter.once(name, listener);
|
|
} else {
|
|
emitter.on(name, listener);
|
|
}
|
|
} else if (typeof emitter.addEventListener === 'function') {
|
|
// EventTarget does not have `error` event semantics like Node
|
|
// EventEmitters, we do not listen for `error` events here.
|
|
emitter.addEventListener(name, function wrapListener(arg) {
|
|
// IE does not have builtin `{ once: true }` support so we
|
|
// have to do it manually.
|
|
if (flags.once) {
|
|
emitter.removeEventListener(name, wrapListener);
|
|
}
|
|
listener(arg);
|
|
});
|
|
} else {
|
|
throw new TypeError('The "emitter" argument must be of type EventEmitter. Received type ' + typeof emitter);
|
|
}
|
|
}
|
|
|
|
},{}],7:[function(require,module,exports){
|
|
/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh <https://feross.org/opensource> */
|
|
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
|
|
}
|
|
|
|
},{}],8:[function(require,module,exports){
|
|
if (typeof Object.create === 'function') {
|
|
// implementation from standard node.js 'util' module
|
|
module.exports = function inherits(ctor, superCtor) {
|
|
if (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) {
|
|
if (superCtor) {
|
|
ctor.super_ = superCtor
|
|
var TempCtor = function () {}
|
|
TempCtor.prototype = superCtor.prototype
|
|
ctor.prototype = new TempCtor()
|
|
ctor.prototype.constructor = ctor
|
|
}
|
|
}
|
|
}
|
|
|
|
},{}],9:[function(require,module,exports){
|
|
/*!
|
|
* Determine if an object is a Buffer
|
|
*
|
|
* @author Feross Aboukhadijeh <https://feross.org>
|
|
* @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))
|
|
}
|
|
|
|
},{}],10:[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; };
|
|
|
|
},{}],11:[function(require,module,exports){
|
|
/*! safe-buffer. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */
|
|
/* 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)
|
|
}
|
|
|
|
SafeBuffer.prototype = Object.create(Buffer.prototype)
|
|
|
|
// 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":5}],12:[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.
|
|
|
|
module.exports = Stream;
|
|
|
|
var EE = require('events').EventEmitter;
|
|
var inherits = require('inherits');
|
|
|
|
inherits(Stream, EE);
|
|
Stream.Readable = require('readable-stream/lib/_stream_readable.js');
|
|
Stream.Writable = require('readable-stream/lib/_stream_writable.js');
|
|
Stream.Duplex = require('readable-stream/lib/_stream_duplex.js');
|
|
Stream.Transform = require('readable-stream/lib/_stream_transform.js');
|
|
Stream.PassThrough = require('readable-stream/lib/_stream_passthrough.js');
|
|
Stream.finished = require('readable-stream/lib/internal/streams/end-of-stream.js')
|
|
Stream.pipeline = require('readable-stream/lib/internal/streams/pipeline.js')
|
|
|
|
// Backwards-compat with node 0.4.x
|
|
Stream.Stream = Stream;
|
|
|
|
|
|
|
|
// old-style streams. Note that the pipe method (the only relevant
|
|
// part of this class) is overridden in the Readable class.
|
|
|
|
function Stream() {
|
|
EE.call(this);
|
|
}
|
|
|
|
Stream.prototype.pipe = function(dest, options) {
|
|
var source = this;
|
|
|
|
function ondata(chunk) {
|
|
if (dest.writable) {
|
|
if (false === dest.write(chunk) && source.pause) {
|
|
source.pause();
|
|
}
|
|
}
|
|
}
|
|
|
|
source.on('data', ondata);
|
|
|
|
function ondrain() {
|
|
if (source.readable && source.resume) {
|
|
source.resume();
|
|
}
|
|
}
|
|
|
|
dest.on('drain', ondrain);
|
|
|
|
// If the 'end' option is not supplied, dest.end() will be called when
|
|
// source gets the 'end' or 'close' events. Only dest.end() once.
|
|
if (!dest._isStdio && (!options || options.end !== false)) {
|
|
source.on('end', onend);
|
|
source.on('close', onclose);
|
|
}
|
|
|
|
var didOnEnd = false;
|
|
function onend() {
|
|
if (didOnEnd) return;
|
|
didOnEnd = true;
|
|
|
|
dest.end();
|
|
}
|
|
|
|
|
|
function onclose() {
|
|
if (didOnEnd) return;
|
|
didOnEnd = true;
|
|
|
|
if (typeof dest.destroy === 'function') dest.destroy();
|
|
}
|
|
|
|
// don't leave dangling pipes when there are errors.
|
|
function onerror(er) {
|
|
cleanup();
|
|
if (EE.listenerCount(this, 'error') === 0) {
|
|
throw er; // Unhandled stream error in pipe.
|
|
}
|
|
}
|
|
|
|
source.on('error', onerror);
|
|
dest.on('error', onerror);
|
|
|
|
// remove all the event listeners that were added.
|
|
function cleanup() {
|
|
source.removeListener('data', ondata);
|
|
dest.removeListener('drain', ondrain);
|
|
|
|
source.removeListener('end', onend);
|
|
source.removeListener('close', onclose);
|
|
|
|
source.removeListener('error', onerror);
|
|
dest.removeListener('error', onerror);
|
|
|
|
source.removeListener('end', cleanup);
|
|
source.removeListener('close', cleanup);
|
|
|
|
dest.removeListener('close', cleanup);
|
|
}
|
|
|
|
source.on('end', cleanup);
|
|
source.on('close', cleanup);
|
|
|
|
dest.on('close', cleanup);
|
|
|
|
dest.emit('pipe', source);
|
|
|
|
// Allow for unix-like usage: A.pipe(B).pipe(C)
|
|
return dest;
|
|
};
|
|
|
|
},{"events":6,"inherits":8,"readable-stream/lib/_stream_duplex.js":14,"readable-stream/lib/_stream_passthrough.js":15,"readable-stream/lib/_stream_readable.js":16,"readable-stream/lib/_stream_transform.js":17,"readable-stream/lib/_stream_writable.js":18,"readable-stream/lib/internal/streams/end-of-stream.js":22,"readable-stream/lib/internal/streams/pipeline.js":24}],13:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
|
|
|
|
var codes = {};
|
|
|
|
function createErrorType(code, message, Base) {
|
|
if (!Base) {
|
|
Base = Error;
|
|
}
|
|
|
|
function getMessage(arg1, arg2, arg3) {
|
|
if (typeof message === 'string') {
|
|
return message;
|
|
} else {
|
|
return message(arg1, arg2, arg3);
|
|
}
|
|
}
|
|
|
|
var NodeError =
|
|
/*#__PURE__*/
|
|
function (_Base) {
|
|
_inheritsLoose(NodeError, _Base);
|
|
|
|
function NodeError(arg1, arg2, arg3) {
|
|
return _Base.call(this, getMessage(arg1, arg2, arg3)) || this;
|
|
}
|
|
|
|
return NodeError;
|
|
}(Base);
|
|
|
|
NodeError.prototype.name = Base.name;
|
|
NodeError.prototype.code = code;
|
|
codes[code] = NodeError;
|
|
} // https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js
|
|
|
|
|
|
function oneOf(expected, thing) {
|
|
if (Array.isArray(expected)) {
|
|
var len = expected.length;
|
|
expected = expected.map(function (i) {
|
|
return String(i);
|
|
});
|
|
|
|
if (len > 2) {
|
|
return "one of ".concat(thing, " ").concat(expected.slice(0, len - 1).join(', '), ", or ") + expected[len - 1];
|
|
} else if (len === 2) {
|
|
return "one of ".concat(thing, " ").concat(expected[0], " or ").concat(expected[1]);
|
|
} else {
|
|
return "of ".concat(thing, " ").concat(expected[0]);
|
|
}
|
|
} else {
|
|
return "of ".concat(thing, " ").concat(String(expected));
|
|
}
|
|
} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith
|
|
|
|
|
|
function startsWith(str, search, pos) {
|
|
return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;
|
|
} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
|
|
|
|
|
|
function endsWith(str, search, this_len) {
|
|
if (this_len === undefined || this_len > str.length) {
|
|
this_len = str.length;
|
|
}
|
|
|
|
return str.substring(this_len - search.length, this_len) === search;
|
|
} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes
|
|
|
|
|
|
function includes(str, search, start) {
|
|
if (typeof start !== 'number') {
|
|
start = 0;
|
|
}
|
|
|
|
if (start + search.length > str.length) {
|
|
return false;
|
|
} else {
|
|
return str.indexOf(search, start) !== -1;
|
|
}
|
|
}
|
|
|
|
createErrorType('ERR_INVALID_OPT_VALUE', function (name, value) {
|
|
return 'The value "' + value + '" is invalid for option "' + name + '"';
|
|
}, TypeError);
|
|
createErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) {
|
|
// determiner: 'must be' or 'must not be'
|
|
var determiner;
|
|
|
|
if (typeof expected === 'string' && startsWith(expected, 'not ')) {
|
|
determiner = 'must not be';
|
|
expected = expected.replace(/^not /, '');
|
|
} else {
|
|
determiner = 'must be';
|
|
}
|
|
|
|
var msg;
|
|
|
|
if (endsWith(name, ' argument')) {
|
|
// For cases like 'first argument'
|
|
msg = "The ".concat(name, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
|
|
} else {
|
|
var type = includes(name, '.') ? 'property' : 'argument';
|
|
msg = "The \"".concat(name, "\" ").concat(type, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
|
|
}
|
|
|
|
msg += ". Received type ".concat(typeof actual);
|
|
return msg;
|
|
}, TypeError);
|
|
createErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF');
|
|
createErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) {
|
|
return 'The ' + name + ' method is not implemented';
|
|
});
|
|
createErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close');
|
|
createErrorType('ERR_STREAM_DESTROYED', function (name) {
|
|
return 'Cannot call ' + name + ' after a stream was destroyed';
|
|
});
|
|
createErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');
|
|
createErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable');
|
|
createErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end');
|
|
createErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError);
|
|
createErrorType('ERR_UNKNOWN_ENCODING', function (arg) {
|
|
return 'Unknown encoding: ' + arg;
|
|
}, TypeError);
|
|
createErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event');
|
|
module.exports.codes = codes;
|
|
|
|
},{}],14:[function(require,module,exports){
|
|
(function (process){(function (){
|
|
// 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';
|
|
/*<replacement>*/
|
|
|
|
var objectKeys = Object.keys || function (obj) {
|
|
var keys = [];
|
|
|
|
for (var key in obj) {
|
|
keys.push(key);
|
|
}
|
|
|
|
return keys;
|
|
};
|
|
/*</replacement>*/
|
|
|
|
|
|
module.exports = Duplex;
|
|
|
|
var Readable = require('./_stream_readable');
|
|
|
|
var Writable = require('./_stream_writable');
|
|
|
|
require('inherits')(Duplex, Readable);
|
|
|
|
{
|
|
// Allow the keys array to be GC'ed.
|
|
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);
|
|
this.allowHalfOpen = true;
|
|
|
|
if (options) {
|
|
if (options.readable === false) this.readable = false;
|
|
if (options.writable === false) this.writable = false;
|
|
|
|
if (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 get() {
|
|
return this._writableState.highWaterMark;
|
|
}
|
|
});
|
|
Object.defineProperty(Duplex.prototype, 'writableBuffer', {
|
|
// making it explicit this property is not enumerable
|
|
// because otherwise some prototype manipulation in
|
|
// userland will fail
|
|
enumerable: false,
|
|
get: function get() {
|
|
return this._writableState && this._writableState.getBuffer();
|
|
}
|
|
});
|
|
Object.defineProperty(Duplex.prototype, 'writableLength', {
|
|
// making it explicit this property is not enumerable
|
|
// because otherwise some prototype manipulation in
|
|
// userland will fail
|
|
enumerable: false,
|
|
get: function get() {
|
|
return this._writableState.length;
|
|
}
|
|
}); // the no-half-open enforcer
|
|
|
|
function onend() {
|
|
// If the writable side ended, then we're ok.
|
|
if (this._writableState.ended) return; // no more data can be written.
|
|
// But allow more writes to happen in this tick.
|
|
|
|
process.nextTick(onEndNT, this);
|
|
}
|
|
|
|
function onEndNT(self) {
|
|
self.end();
|
|
}
|
|
|
|
Object.defineProperty(Duplex.prototype, 'destroyed', {
|
|
// making it explicit this property is not enumerable
|
|
// because otherwise some prototype manipulation in
|
|
// userland will fail
|
|
enumerable: false,
|
|
get: function get() {
|
|
if (this._readableState === undefined || this._writableState === undefined) {
|
|
return false;
|
|
}
|
|
|
|
return this._readableState.destroyed && this._writableState.destroyed;
|
|
},
|
|
set: function set(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;
|
|
}
|
|
});
|
|
}).call(this)}).call(this,require('_process'))
|
|
},{"./_stream_readable":16,"./_stream_writable":18,"_process":10,"inherits":8}],15:[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');
|
|
|
|
require('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":17,"inherits":8}],16:[function(require,module,exports){
|
|
(function (process,global){(function (){
|
|
// 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';
|
|
|
|
module.exports = Readable;
|
|
/*<replacement>*/
|
|
|
|
var Duplex;
|
|
/*</replacement>*/
|
|
|
|
Readable.ReadableState = ReadableState;
|
|
/*<replacement>*/
|
|
|
|
var EE = require('events').EventEmitter;
|
|
|
|
var EElistenerCount = function EElistenerCount(emitter, type) {
|
|
return emitter.listeners(type).length;
|
|
};
|
|
/*</replacement>*/
|
|
|
|
/*<replacement>*/
|
|
|
|
|
|
var Stream = require('./internal/streams/stream');
|
|
/*</replacement>*/
|
|
|
|
|
|
var Buffer = require('buffer').Buffer;
|
|
|
|
var OurUint8Array = global.Uint8Array || function () {};
|
|
|
|
function _uint8ArrayToBuffer(chunk) {
|
|
return Buffer.from(chunk);
|
|
}
|
|
|
|
function _isUint8Array(obj) {
|
|
return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
|
|
}
|
|
/*<replacement>*/
|
|
|
|
|
|
var debugUtil = require('util');
|
|
|
|
var debug;
|
|
|
|
if (debugUtil && debugUtil.debuglog) {
|
|
debug = debugUtil.debuglog('stream');
|
|
} else {
|
|
debug = function debug() {};
|
|
}
|
|
/*</replacement>*/
|
|
|
|
|
|
var BufferList = require('./internal/streams/buffer_list');
|
|
|
|
var destroyImpl = require('./internal/streams/destroy');
|
|
|
|
var _require = require('./internal/streams/state'),
|
|
getHighWaterMark = _require.getHighWaterMark;
|
|
|
|
var _require$codes = require('../errors').codes,
|
|
ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
|
|
ERR_STREAM_PUSH_AFTER_EOF = _require$codes.ERR_STREAM_PUSH_AFTER_EOF,
|
|
ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
|
|
ERR_STREAM_UNSHIFT_AFTER_END_EVENT = _require$codes.ERR_STREAM_UNSHIFT_AFTER_END_EVENT; // Lazy loaded to improve the startup performance.
|
|
|
|
|
|
var StringDecoder;
|
|
var createReadableStreamAsyncIterator;
|
|
var from;
|
|
|
|
require('inherits')(Readable, Stream);
|
|
|
|
var errorOrDestroy = destroyImpl.errorOrDestroy;
|
|
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 (Array.isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
|
|
}
|
|
|
|
function ReadableState(options, stream, isDuplex) {
|
|
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.
|
|
|
|
if (typeof isDuplex !== 'boolean') 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"
|
|
|
|
this.highWaterMark = getHighWaterMark(this, options, 'readableHighWaterMark', isDuplex); // 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;
|
|
this.paused = true; // Should close be emitted on destroy. Defaults to true.
|
|
|
|
this.emitClose = options.emitClose !== false; // Should .destroy() be called after 'end' (and potentially 'finish')
|
|
|
|
this.autoDestroy = !!options.autoDestroy; // 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); // Checking for a Stream.Duplex instance is faster here instead of inside
|
|
// the ReadableState constructor, at least with V8 6.5
|
|
|
|
var isDuplex = this instanceof Duplex;
|
|
this._readableState = new ReadableState(options, this, isDuplex); // 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', {
|
|
// making it explicit this property is not enumerable
|
|
// because otherwise some prototype manipulation in
|
|
// userland will fail
|
|
enumerable: false,
|
|
get: function get() {
|
|
if (this._readableState === undefined) {
|
|
return false;
|
|
}
|
|
|
|
return this._readableState.destroyed;
|
|
},
|
|
set: function set(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) {
|
|
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) {
|
|
debug('readableAddChunk', chunk);
|
|
var state = stream._readableState;
|
|
|
|
if (chunk === null) {
|
|
state.reading = false;
|
|
onEofChunk(stream, state);
|
|
} else {
|
|
var er;
|
|
if (!skipChunkCheck) er = chunkInvalid(state, chunk);
|
|
|
|
if (er) {
|
|
errorOrDestroy(stream, 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) errorOrDestroy(stream, new ERR_STREAM_UNSHIFT_AFTER_END_EVENT());else addChunk(stream, state, chunk, true);
|
|
} else if (state.ended) {
|
|
errorOrDestroy(stream, new ERR_STREAM_PUSH_AFTER_EOF());
|
|
} else if (state.destroyed) {
|
|
return false;
|
|
} 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;
|
|
maybeReadMore(stream, state);
|
|
}
|
|
} // We can push more data if we are below the highWaterMark.
|
|
// 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.
|
|
|
|
|
|
return !state.ended && (state.length < state.highWaterMark || state.length === 0);
|
|
}
|
|
|
|
function addChunk(stream, state, chunk, addToFront) {
|
|
if (state.flowing && state.length === 0 && !state.sync) {
|
|
state.awaitDrain = 0;
|
|
stream.emit('data', chunk);
|
|
} 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 ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer', 'Uint8Array'], chunk);
|
|
}
|
|
|
|
return er;
|
|
}
|
|
|
|
Readable.prototype.isPaused = function () {
|
|
return this._readableState.flowing === false;
|
|
}; // backwards compatibility.
|
|
|
|
|
|
Readable.prototype.setEncoding = function (enc) {
|
|
if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
|
|
var decoder = new StringDecoder(enc);
|
|
this._readableState.decoder = decoder; // If setEncoding(null), decoder.encoding equals utf8
|
|
|
|
this._readableState.encoding = this._readableState.decoder.encoding; // Iterate over current buffer to convert already stored Buffers:
|
|
|
|
var p = this._readableState.buffer.head;
|
|
var content = '';
|
|
|
|
while (p !== null) {
|
|
content += decoder.write(p.data);
|
|
p = p.next;
|
|
}
|
|
|
|
this._readableState.buffer.clear();
|
|
|
|
if (content !== '') this._readableState.buffer.push(content);
|
|
this._readableState.length = content.length;
|
|
return this;
|
|
}; // Don't raise the hwm > 1GB
|
|
|
|
|
|
var MAX_HWM = 0x40000000;
|
|
|
|
function computeNewHighWaterMark(n) {
|
|
if (n >= MAX_HWM) {
|
|
// TODO(ronag): Throw ERR_VALUE_OUT_OF_RANGE.
|
|
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.highWaterMark !== 0 ? state.length >= state.highWaterMark : state.length > 0) || 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 = state.length <= state.highWaterMark;
|
|
n = 0;
|
|
} else {
|
|
state.length -= n;
|
|
state.awaitDrain = 0;
|
|
}
|
|
|
|
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) {
|
|
debug('onEofChunk');
|
|
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;
|
|
|
|
if (state.sync) {
|
|
// if we are sync, wait until next tick to emit the data.
|
|
// Otherwise we risk emitting data in the flow()
|
|
// the readable code triggers during a read() call
|
|
emitReadable(stream);
|
|
} else {
|
|
// emit 'readable' now to make sure it gets picked up.
|
|
state.needReadable = false;
|
|
|
|
if (!state.emittedReadable) {
|
|
state.emittedReadable = true;
|
|
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;
|
|
debug('emitReadable', state.needReadable, state.emittedReadable);
|
|
state.needReadable = false;
|
|
|
|
if (!state.emittedReadable) {
|
|
debug('emitReadable', state.flowing);
|
|
state.emittedReadable = true;
|
|
process.nextTick(emitReadable_, stream);
|
|
}
|
|
}
|
|
|
|
function emitReadable_(stream) {
|
|
var state = stream._readableState;
|
|
debug('emitReadable_', state.destroyed, state.length, state.ended);
|
|
|
|
if (!state.destroyed && (state.length || state.ended)) {
|
|
stream.emit('readable');
|
|
state.emittedReadable = false;
|
|
} // The stream needs another readable event if
|
|
// 1. It is not flowing, as the flow mechanism will take
|
|
// care of it.
|
|
// 2. It is not ended.
|
|
// 3. It is below the highWaterMark, so we can schedule
|
|
// another readable later.
|
|
|
|
|
|
state.needReadable = !state.flowing && !state.ended && state.length <= state.highWaterMark;
|
|
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;
|
|
process.nextTick(maybeReadMore_, stream, state);
|
|
}
|
|
}
|
|
|
|
function maybeReadMore_(stream, state) {
|
|
// Attempt to read more data if we should.
|
|
//
|
|
// The conditions for reading more data are (one of):
|
|
// - Not enough data buffered (state.length < state.highWaterMark). The loop
|
|
// is responsible for filling the buffer with enough data if such data
|
|
// is available. If highWaterMark is 0 and we are not in the flowing mode
|
|
// we should _not_ attempt to buffer any extra data. We'll get more data
|
|
// when the stream consumer calls read() instead.
|
|
// - No data in the buffer, and the stream is in flowing mode. In this mode
|
|
// the loop below is responsible for ensuring read() is called. Failing to
|
|
// call read here would abort the flow and there's no other mechanism for
|
|
// continuing the flow if the stream consumer has just subscribed to the
|
|
// 'data' event.
|
|
//
|
|
// In addition to the above conditions to keep reading data, the following
|
|
// conditions prevent the data from being read:
|
|
// - The stream has ended (state.ended).
|
|
// - There is already a pending 'read' operation (state.reading). This is a
|
|
// case where the the stream has called the implementation defined _read()
|
|
// method, but they are processing the call asynchronously and have _not_
|
|
// called push() with new data. In this case we skip performing more
|
|
// read()s. The execution ends in this method again after the _read() ends
|
|
// up calling push() with more data.
|
|
while (!state.reading && !state.ended && (state.length < state.highWaterMark || state.flowing && state.length === 0)) {
|
|
var len = state.length;
|
|
debug('maybeReadMore read 0');
|
|
stream.read(0);
|
|
if (len === state.length) // didn't get any data, stop spinning.
|
|
break;
|
|
}
|
|
|
|
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) {
|
|
errorOrDestroy(this, new ERR_METHOD_NOT_IMPLEMENTED('_read()'));
|
|
};
|
|
|
|
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) process.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();
|
|
}
|
|
|
|
src.on('data', ondata);
|
|
|
|
function ondata(chunk) {
|
|
debug('ondata');
|
|
var ret = dest.write(chunk);
|
|
debug('dest.write', ret);
|
|
|
|
if (ret === false) {
|
|
// 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', state.awaitDrain);
|
|
state.awaitDrain++;
|
|
}
|
|
|
|
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) errorOrDestroy(dest, 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 pipeOnDrainFunctionResult() {
|
|
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, {
|
|
hasUnpiped: false
|
|
});
|
|
}
|
|
|
|
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);
|
|
var state = this._readableState;
|
|
|
|
if (ev === 'data') {
|
|
// update readableListening so that resume() may be a no-op
|
|
// a few lines down. This is needed to support once('readable').
|
|
state.readableListening = this.listenerCount('readable') > 0; // Try start flowing on next tick if stream isn't explicitly paused
|
|
|
|
if (state.flowing !== false) this.resume();
|
|
} else if (ev === 'readable') {
|
|
if (!state.endEmitted && !state.readableListening) {
|
|
state.readableListening = state.needReadable = true;
|
|
state.flowing = false;
|
|
state.emittedReadable = false;
|
|
debug('on readable', state.length, state.reading);
|
|
|
|
if (state.length) {
|
|
emitReadable(this);
|
|
} else if (!state.reading) {
|
|
process.nextTick(nReadingNextTick, this);
|
|
}
|
|
}
|
|
}
|
|
|
|
return res;
|
|
};
|
|
|
|
Readable.prototype.addListener = Readable.prototype.on;
|
|
|
|
Readable.prototype.removeListener = function (ev, fn) {
|
|
var res = Stream.prototype.removeListener.call(this, ev, fn);
|
|
|
|
if (ev === 'readable') {
|
|
// We need to check if there is someone still listening to
|
|
// readable and reset the state. However this needs to happen
|
|
// after readable has been emitted but before I/O (nextTick) to
|
|
// support once('readable', fn) cycles. This means that calling
|
|
// resume within the same tick will have no
|
|
// effect.
|
|
process.nextTick(updateReadableListening, this);
|
|
}
|
|
|
|
return res;
|
|
};
|
|
|
|
Readable.prototype.removeAllListeners = function (ev) {
|
|
var res = Stream.prototype.removeAllListeners.apply(this, arguments);
|
|
|
|
if (ev === 'readable' || ev === undefined) {
|
|
// We need to check if there is someone still listening to
|
|
// readable and reset the state. However this needs to happen
|
|
// after readable has been emitted but before I/O (nextTick) to
|
|
// support once('readable', fn) cycles. This means that calling
|
|
// resume within the same tick will have no
|
|
// effect.
|
|
process.nextTick(updateReadableListening, this);
|
|
}
|
|
|
|
return res;
|
|
};
|
|
|
|
function updateReadableListening(self) {
|
|
var state = self._readableState;
|
|
state.readableListening = self.listenerCount('readable') > 0;
|
|
|
|
if (state.resumeScheduled && !state.paused) {
|
|
// flowing needs to be set to true now, otherwise
|
|
// the upcoming resume will not flow.
|
|
state.flowing = true; // crude way to check if we should resume
|
|
} else if (self.listenerCount('data') > 0) {
|
|
self.resume();
|
|
}
|
|
}
|
|
|
|
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'); // we flow only if there is no one listening
|
|
// for readable, but we still have to call
|
|
// resume()
|
|
|
|
state.flowing = !state.readableListening;
|
|
resume(this, state);
|
|
}
|
|
|
|
state.paused = false;
|
|
return this;
|
|
};
|
|
|
|
function resume(stream, state) {
|
|
if (!state.resumeScheduled) {
|
|
state.resumeScheduled = true;
|
|
process.nextTick(resume_, stream, state);
|
|
}
|
|
}
|
|
|
|
function resume_(stream, state) {
|
|
debug('resume', state.reading);
|
|
|
|
if (!state.reading) {
|
|
stream.read(0);
|
|
}
|
|
|
|
state.resumeScheduled = false;
|
|
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 (this._readableState.flowing !== false) {
|
|
debug('pause');
|
|
this._readableState.flowing = false;
|
|
this.emit('pause');
|
|
}
|
|
|
|
this._readableState.paused = true;
|
|
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 methodWrap(method) {
|
|
return function methodWrapReturnFunction() {
|
|
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;
|
|
};
|
|
|
|
if (typeof Symbol === 'function') {
|
|
Readable.prototype[Symbol.asyncIterator] = function () {
|
|
if (createReadableStreamAsyncIterator === undefined) {
|
|
createReadableStreamAsyncIterator = require('./internal/streams/async_iterator');
|
|
}
|
|
|
|
return createReadableStreamAsyncIterator(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 get() {
|
|
return this._readableState.highWaterMark;
|
|
}
|
|
});
|
|
Object.defineProperty(Readable.prototype, 'readableBuffer', {
|
|
// making it explicit this property is not enumerable
|
|
// because otherwise some prototype manipulation in
|
|
// userland will fail
|
|
enumerable: false,
|
|
get: function get() {
|
|
return this._readableState && this._readableState.buffer;
|
|
}
|
|
});
|
|
Object.defineProperty(Readable.prototype, 'readableFlowing', {
|
|
// making it explicit this property is not enumerable
|
|
// because otherwise some prototype manipulation in
|
|
// userland will fail
|
|
enumerable: false,
|
|
get: function get() {
|
|
return this._readableState.flowing;
|
|
},
|
|
set: function set(state) {
|
|
if (this._readableState) {
|
|
this._readableState.flowing = state;
|
|
}
|
|
}
|
|
}); // exposed for testing purposes only.
|
|
|
|
Readable._fromList = fromList;
|
|
Object.defineProperty(Readable.prototype, 'readableLength', {
|
|
// making it explicit this property is not enumerable
|
|
// because otherwise some prototype manipulation in
|
|
// userland will fail
|
|
enumerable: false,
|
|
get: function get() {
|
|
return this._readableState.length;
|
|
}
|
|
}); // 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.first();else ret = state.buffer.concat(state.length);
|
|
state.buffer.clear();
|
|
} else {
|
|
// read part of list
|
|
ret = state.buffer.consume(n, state.decoder);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
function endReadable(stream) {
|
|
var state = stream._readableState;
|
|
debug('endReadable', state.endEmitted);
|
|
|
|
if (!state.endEmitted) {
|
|
state.ended = true;
|
|
process.nextTick(endReadableNT, state, stream);
|
|
}
|
|
}
|
|
|
|
function endReadableNT(state, stream) {
|
|
debug('endReadableNT', state.endEmitted, state.length); // Check that we didn't get one last unshift.
|
|
|
|
if (!state.endEmitted && state.length === 0) {
|
|
state.endEmitted = true;
|
|
stream.readable = false;
|
|
stream.emit('end');
|
|
|
|
if (state.autoDestroy) {
|
|
// In case of duplex streams we need a way to detect
|
|
// if the writable side is ready for autoDestroy as well
|
|
var wState = stream._writableState;
|
|
|
|
if (!wState || wState.autoDestroy && wState.finished) {
|
|
stream.destroy();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (typeof Symbol === 'function') {
|
|
Readable.from = function (iterable, opts) {
|
|
if (from === undefined) {
|
|
from = require('./internal/streams/from');
|
|
}
|
|
|
|
return from(Readable, iterable, opts);
|
|
};
|
|
}
|
|
|
|
function indexOf(xs, x) {
|
|
for (var i = 0, l = xs.length; i < l; i++) {
|
|
if (xs[i] === x) return i;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{"../errors":13,"./_stream_duplex":14,"./internal/streams/async_iterator":19,"./internal/streams/buffer_list":20,"./internal/streams/destroy":21,"./internal/streams/from":23,"./internal/streams/state":25,"./internal/streams/stream":26,"_process":10,"buffer":5,"events":6,"inherits":8,"string_decoder/":27,"util":4}],17:[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 _require$codes = require('../errors').codes,
|
|
ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
|
|
ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
|
|
ERR_TRANSFORM_ALREADY_TRANSFORMING = _require$codes.ERR_TRANSFORM_ALREADY_TRANSFORMING,
|
|
ERR_TRANSFORM_WITH_LENGTH_0 = _require$codes.ERR_TRANSFORM_WITH_LENGTH_0;
|
|
|
|
var Duplex = require('./_stream_duplex');
|
|
|
|
require('inherits')(Transform, Duplex);
|
|
|
|
function afterTransform(er, data) {
|
|
var ts = this._transformState;
|
|
ts.transforming = false;
|
|
var cb = ts.writecb;
|
|
|
|
if (cb === null) {
|
|
return this.emit('error', new ERR_MULTIPLE_CALLBACK());
|
|
}
|
|
|
|
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._readableState.destroyed) {
|
|
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) {
|
|
cb(new ERR_METHOD_NOT_IMPLEMENTED('_transform()'));
|
|
};
|
|
|
|
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.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) {
|
|
Duplex.prototype._destroy.call(this, err, function (err2) {
|
|
cb(err2);
|
|
});
|
|
};
|
|
|
|
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); // TODO(BridgeAR): Write a test for these two error cases
|
|
// if there's nothing in the write buffer, then that means
|
|
// that nothing more will ever be provided
|
|
|
|
if (stream._writableState.length) throw new ERR_TRANSFORM_WITH_LENGTH_0();
|
|
if (stream._transformState.transforming) throw new ERR_TRANSFORM_ALREADY_TRANSFORMING();
|
|
return stream.push(null);
|
|
}
|
|
},{"../errors":13,"./_stream_duplex":14,"inherits":8}],18:[function(require,module,exports){
|
|
(function (process,global){(function (){
|
|
// 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';
|
|
|
|
module.exports = Writable;
|
|
/* <replacement> */
|
|
|
|
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);
|
|
};
|
|
}
|
|
/* </replacement> */
|
|
|
|
/*<replacement>*/
|
|
|
|
|
|
var Duplex;
|
|
/*</replacement>*/
|
|
|
|
Writable.WritableState = WritableState;
|
|
/*<replacement>*/
|
|
|
|
var internalUtil = {
|
|
deprecate: require('util-deprecate')
|
|
};
|
|
/*</replacement>*/
|
|
|
|
/*<replacement>*/
|
|
|
|
var Stream = require('./internal/streams/stream');
|
|
/*</replacement>*/
|
|
|
|
|
|
var Buffer = require('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');
|
|
|
|
var _require = require('./internal/streams/state'),
|
|
getHighWaterMark = _require.getHighWaterMark;
|
|
|
|
var _require$codes = require('../errors').codes,
|
|
ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
|
|
ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
|
|
ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
|
|
ERR_STREAM_CANNOT_PIPE = _require$codes.ERR_STREAM_CANNOT_PIPE,
|
|
ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED,
|
|
ERR_STREAM_NULL_VALUES = _require$codes.ERR_STREAM_NULL_VALUES,
|
|
ERR_STREAM_WRITE_AFTER_END = _require$codes.ERR_STREAM_WRITE_AFTER_END,
|
|
ERR_UNKNOWN_ENCODING = _require$codes.ERR_UNKNOWN_ENCODING;
|
|
|
|
var errorOrDestroy = destroyImpl.errorOrDestroy;
|
|
|
|
require('inherits')(Writable, Stream);
|
|
|
|
function nop() {}
|
|
|
|
function WritableState(options, stream, isDuplex) {
|
|
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,
|
|
// e.g. options.readableObjectMode vs. options.writableObjectMode, etc.
|
|
|
|
if (typeof isDuplex !== 'boolean') 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()
|
|
|
|
this.highWaterMark = getHighWaterMark(this, options, 'writableHighWaterMark', isDuplex); // 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; // Should close be emitted on destroy. Defaults to true.
|
|
|
|
this.emitClose = options.emitClose !== false; // Should .destroy() be called after 'finish' (and potentially 'end')
|
|
|
|
this.autoDestroy = !!options.autoDestroy; // 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 writableStateBufferGetter() {
|
|
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 value(object) {
|
|
if (realHasInstance.call(this, object)) return true;
|
|
if (this !== Writable) return false;
|
|
return object && object._writableState instanceof WritableState;
|
|
}
|
|
});
|
|
} else {
|
|
realHasInstance = function realHasInstance(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.
|
|
// Checking for a Stream.Duplex instance is faster here instead of inside
|
|
// the WritableState constructor, at least with V8 6.5
|
|
|
|
var isDuplex = this instanceof Duplex;
|
|
if (!isDuplex && !realHasInstance.call(Writable, this)) return new Writable(options);
|
|
this._writableState = new WritableState(options, this, isDuplex); // 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 () {
|
|
errorOrDestroy(this, new ERR_STREAM_CANNOT_PIPE());
|
|
};
|
|
|
|
function writeAfterEnd(stream, cb) {
|
|
var er = new ERR_STREAM_WRITE_AFTER_END(); // TODO: defer error events consistently everywhere, not just the cb
|
|
|
|
errorOrDestroy(stream, er);
|
|
process.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 er;
|
|
|
|
if (chunk === null) {
|
|
er = new ERR_STREAM_NULL_VALUES();
|
|
} else if (typeof chunk !== 'string' && !state.objectMode) {
|
|
er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer'], chunk);
|
|
}
|
|
|
|
if (er) {
|
|
errorOrDestroy(stream, er);
|
|
process.nextTick(cb, er);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
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.ending) 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 () {
|
|
this._writableState.corked++;
|
|
};
|
|
|
|
Writable.prototype.uncork = function () {
|
|
var state = this._writableState;
|
|
|
|
if (state.corked) {
|
|
state.corked--;
|
|
if (!state.writing && !state.corked && !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 ERR_UNKNOWN_ENCODING(encoding);
|
|
this._writableState.defaultEncoding = encoding;
|
|
return this;
|
|
};
|
|
|
|
Object.defineProperty(Writable.prototype, 'writableBuffer', {
|
|
// making it explicit this property is not enumerable
|
|
// because otherwise some prototype manipulation in
|
|
// userland will fail
|
|
enumerable: false,
|
|
get: function get() {
|
|
return this._writableState && this._writableState.getBuffer();
|
|
}
|
|
});
|
|
|
|
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 get() {
|
|
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 (state.destroyed) state.onwrite(new ERR_STREAM_DESTROYED('write'));else 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
|
|
process.nextTick(cb, er); // this can emit finish, and it will always happen
|
|
// after error
|
|
|
|
process.nextTick(finishMaybe, stream, state);
|
|
stream._writableState.errorEmitted = true;
|
|
errorOrDestroy(stream, er);
|
|
} else {
|
|
// the caller expect this to happen before if
|
|
// it is async
|
|
cb(er);
|
|
stream._writableState.errorEmitted = true;
|
|
errorOrDestroy(stream, 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;
|
|
if (typeof cb !== 'function') throw new ERR_MULTIPLE_CALLBACK();
|
|
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) || stream.destroyed;
|
|
|
|
if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
|
|
clearBuffer(stream, state);
|
|
}
|
|
|
|
if (sync) {
|
|
process.nextTick(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 ERR_METHOD_NOT_IMPLEMENTED('_write()'));
|
|
};
|
|
|
|
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) endWritable(this, state, cb);
|
|
return this;
|
|
};
|
|
|
|
Object.defineProperty(Writable.prototype, 'writableLength', {
|
|
// making it explicit this property is not enumerable
|
|
// because otherwise some prototype manipulation in
|
|
// userland will fail
|
|
enumerable: false,
|
|
get: function get() {
|
|
return this._writableState.length;
|
|
}
|
|
});
|
|
|
|
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) {
|
|
errorOrDestroy(stream, 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.destroyed) {
|
|
state.pendingcb++;
|
|
state.finalCalled = true;
|
|
process.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');
|
|
|
|
if (state.autoDestroy) {
|
|
// In case of duplex streams we need a way to detect
|
|
// if the readable side is ready for autoDestroy as well
|
|
var rState = stream._readableState;
|
|
|
|
if (!rState || rState.autoDestroy && rState.endEmitted) {
|
|
stream.destroy();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return need;
|
|
}
|
|
|
|
function endWritable(stream, state, cb) {
|
|
state.ending = true;
|
|
finishMaybe(stream, state);
|
|
|
|
if (cb) {
|
|
if (state.finished) process.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;
|
|
} // reuse the free corkReq.
|
|
|
|
|
|
state.corkedRequestsFree.next = corkReq;
|
|
}
|
|
|
|
Object.defineProperty(Writable.prototype, 'destroyed', {
|
|
// making it explicit this property is not enumerable
|
|
// because otherwise some prototype manipulation in
|
|
// userland will fail
|
|
enumerable: false,
|
|
get: function get() {
|
|
if (this._writableState === undefined) {
|
|
return false;
|
|
}
|
|
|
|
return this._writableState.destroyed;
|
|
},
|
|
set: function set(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) {
|
|
cb(err);
|
|
};
|
|
}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{"../errors":13,"./_stream_duplex":14,"./internal/streams/destroy":21,"./internal/streams/state":25,"./internal/streams/stream":26,"_process":10,"buffer":5,"inherits":8,"util-deprecate":29}],19:[function(require,module,exports){
|
|
(function (process){(function (){
|
|
'use strict';
|
|
|
|
var _Object$setPrototypeO;
|
|
|
|
function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
|
|
|
|
var finished = require('./end-of-stream');
|
|
|
|
var kLastResolve = Symbol('lastResolve');
|
|
var kLastReject = Symbol('lastReject');
|
|
var kError = Symbol('error');
|
|
var kEnded = Symbol('ended');
|
|
var kLastPromise = Symbol('lastPromise');
|
|
var kHandlePromise = Symbol('handlePromise');
|
|
var kStream = Symbol('stream');
|
|
|
|
function createIterResult(value, done) {
|
|
return {
|
|
value: value,
|
|
done: done
|
|
};
|
|
}
|
|
|
|
function readAndResolve(iter) {
|
|
var resolve = iter[kLastResolve];
|
|
|
|
if (resolve !== null) {
|
|
var data = iter[kStream].read(); // we defer if data is null
|
|
// we can be expecting either 'end' or
|
|
// 'error'
|
|
|
|
if (data !== null) {
|
|
iter[kLastPromise] = null;
|
|
iter[kLastResolve] = null;
|
|
iter[kLastReject] = null;
|
|
resolve(createIterResult(data, false));
|
|
}
|
|
}
|
|
}
|
|
|
|
function onReadable(iter) {
|
|
// we wait for the next tick, because it might
|
|
// emit an error with process.nextTick
|
|
process.nextTick(readAndResolve, iter);
|
|
}
|
|
|
|
function wrapForNext(lastPromise, iter) {
|
|
return function (resolve, reject) {
|
|
lastPromise.then(function () {
|
|
if (iter[kEnded]) {
|
|
resolve(createIterResult(undefined, true));
|
|
return;
|
|
}
|
|
|
|
iter[kHandlePromise](resolve, reject);
|
|
}, reject);
|
|
};
|
|
}
|
|
|
|
var AsyncIteratorPrototype = Object.getPrototypeOf(function () {});
|
|
var ReadableStreamAsyncIteratorPrototype = Object.setPrototypeOf((_Object$setPrototypeO = {
|
|
get stream() {
|
|
return this[kStream];
|
|
},
|
|
|
|
next: function next() {
|
|
var _this = this;
|
|
|
|
// if we have detected an error in the meanwhile
|
|
// reject straight away
|
|
var error = this[kError];
|
|
|
|
if (error !== null) {
|
|
return Promise.reject(error);
|
|
}
|
|
|
|
if (this[kEnded]) {
|
|
return Promise.resolve(createIterResult(undefined, true));
|
|
}
|
|
|
|
if (this[kStream].destroyed) {
|
|
// We need to defer via nextTick because if .destroy(err) is
|
|
// called, the error will be emitted via nextTick, and
|
|
// we cannot guarantee that there is no error lingering around
|
|
// waiting to be emitted.
|
|
return new Promise(function (resolve, reject) {
|
|
process.nextTick(function () {
|
|
if (_this[kError]) {
|
|
reject(_this[kError]);
|
|
} else {
|
|
resolve(createIterResult(undefined, true));
|
|
}
|
|
});
|
|
});
|
|
} // if we have multiple next() calls
|
|
// we will wait for the previous Promise to finish
|
|
// this logic is optimized to support for await loops,
|
|
// where next() is only called once at a time
|
|
|
|
|
|
var lastPromise = this[kLastPromise];
|
|
var promise;
|
|
|
|
if (lastPromise) {
|
|
promise = new Promise(wrapForNext(lastPromise, this));
|
|
} else {
|
|
// fast path needed to support multiple this.push()
|
|
// without triggering the next() queue
|
|
var data = this[kStream].read();
|
|
|
|
if (data !== null) {
|
|
return Promise.resolve(createIterResult(data, false));
|
|
}
|
|
|
|
promise = new Promise(this[kHandlePromise]);
|
|
}
|
|
|
|
this[kLastPromise] = promise;
|
|
return promise;
|
|
}
|
|
}, _defineProperty(_Object$setPrototypeO, Symbol.asyncIterator, function () {
|
|
return this;
|
|
}), _defineProperty(_Object$setPrototypeO, "return", function _return() {
|
|
var _this2 = this;
|
|
|
|
// destroy(err, cb) is a private API
|
|
// we can guarantee we have that here, because we control the
|
|
// Readable class this is attached to
|
|
return new Promise(function (resolve, reject) {
|
|
_this2[kStream].destroy(null, function (err) {
|
|
if (err) {
|
|
reject(err);
|
|
return;
|
|
}
|
|
|
|
resolve(createIterResult(undefined, true));
|
|
});
|
|
});
|
|
}), _Object$setPrototypeO), AsyncIteratorPrototype);
|
|
|
|
var createReadableStreamAsyncIterator = function createReadableStreamAsyncIterator(stream) {
|
|
var _Object$create;
|
|
|
|
var iterator = Object.create(ReadableStreamAsyncIteratorPrototype, (_Object$create = {}, _defineProperty(_Object$create, kStream, {
|
|
value: stream,
|
|
writable: true
|
|
}), _defineProperty(_Object$create, kLastResolve, {
|
|
value: null,
|
|
writable: true
|
|
}), _defineProperty(_Object$create, kLastReject, {
|
|
value: null,
|
|
writable: true
|
|
}), _defineProperty(_Object$create, kError, {
|
|
value: null,
|
|
writable: true
|
|
}), _defineProperty(_Object$create, kEnded, {
|
|
value: stream._readableState.endEmitted,
|
|
writable: true
|
|
}), _defineProperty(_Object$create, kHandlePromise, {
|
|
value: function value(resolve, reject) {
|
|
var data = iterator[kStream].read();
|
|
|
|
if (data) {
|
|
iterator[kLastPromise] = null;
|
|
iterator[kLastResolve] = null;
|
|
iterator[kLastReject] = null;
|
|
resolve(createIterResult(data, false));
|
|
} else {
|
|
iterator[kLastResolve] = resolve;
|
|
iterator[kLastReject] = reject;
|
|
}
|
|
},
|
|
writable: true
|
|
}), _Object$create));
|
|
iterator[kLastPromise] = null;
|
|
finished(stream, function (err) {
|
|
if (err && err.code !== 'ERR_STREAM_PREMATURE_CLOSE') {
|
|
var reject = iterator[kLastReject]; // reject if we are waiting for data in the Promise
|
|
// returned by next() and store the error
|
|
|
|
if (reject !== null) {
|
|
iterator[kLastPromise] = null;
|
|
iterator[kLastResolve] = null;
|
|
iterator[kLastReject] = null;
|
|
reject(err);
|
|
}
|
|
|
|
iterator[kError] = err;
|
|
return;
|
|
}
|
|
|
|
var resolve = iterator[kLastResolve];
|
|
|
|
if (resolve !== null) {
|
|
iterator[kLastPromise] = null;
|
|
iterator[kLastResolve] = null;
|
|
iterator[kLastReject] = null;
|
|
resolve(createIterResult(undefined, true));
|
|
}
|
|
|
|
iterator[kEnded] = true;
|
|
});
|
|
stream.on('readable', onReadable.bind(null, iterator));
|
|
return iterator;
|
|
};
|
|
|
|
module.exports = createReadableStreamAsyncIterator;
|
|
}).call(this)}).call(this,require('_process'))
|
|
},{"./end-of-stream":22,"_process":10}],20:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }
|
|
|
|
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
|
|
|
|
function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
|
|
|
|
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
|
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
|
|
|
|
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
|
var _require = require('buffer'),
|
|
Buffer = _require.Buffer;
|
|
|
|
var _require2 = require('util'),
|
|
inspect = _require2.inspect;
|
|
|
|
var custom = inspect && inspect.custom || 'inspect';
|
|
|
|
function copyBuffer(src, target, offset) {
|
|
Buffer.prototype.copy.call(src, target, offset);
|
|
}
|
|
|
|
module.exports =
|
|
/*#__PURE__*/
|
|
function () {
|
|
function BufferList() {
|
|
_classCallCheck(this, BufferList);
|
|
|
|
this.head = null;
|
|
this.tail = null;
|
|
this.length = 0;
|
|
}
|
|
|
|
_createClass(BufferList, [{
|
|
key: "push",
|
|
value: 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;
|
|
}
|
|
}, {
|
|
key: "unshift",
|
|
value: function unshift(v) {
|
|
var entry = {
|
|
data: v,
|
|
next: this.head
|
|
};
|
|
if (this.length === 0) this.tail = entry;
|
|
this.head = entry;
|
|
++this.length;
|
|
}
|
|
}, {
|
|
key: "shift",
|
|
value: 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;
|
|
}
|
|
}, {
|
|
key: "clear",
|
|
value: function clear() {
|
|
this.head = this.tail = null;
|
|
this.length = 0;
|
|
}
|
|
}, {
|
|
key: "join",
|
|
value: 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;
|
|
}
|
|
}, {
|
|
key: "concat",
|
|
value: function concat(n) {
|
|
if (this.length === 0) return Buffer.alloc(0);
|
|
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;
|
|
} // Consumes a specified amount of bytes or characters from the buffered data.
|
|
|
|
}, {
|
|
key: "consume",
|
|
value: function consume(n, hasStrings) {
|
|
var ret;
|
|
|
|
if (n < this.head.data.length) {
|
|
// `slice` is the same for buffers and strings.
|
|
ret = this.head.data.slice(0, n);
|
|
this.head.data = this.head.data.slice(n);
|
|
} else if (n === this.head.data.length) {
|
|
// First chunk is a perfect match.
|
|
ret = this.shift();
|
|
} else {
|
|
// Result spans more than one buffer.
|
|
ret = hasStrings ? this._getString(n) : this._getBuffer(n);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
}, {
|
|
key: "first",
|
|
value: function first() {
|
|
return this.head.data;
|
|
} // Consumes a specified amount of characters from the buffered data.
|
|
|
|
}, {
|
|
key: "_getString",
|
|
value: function _getString(n) {
|
|
var p = this.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) this.head = p.next;else this.head = this.tail = null;
|
|
} else {
|
|
this.head = p;
|
|
p.data = str.slice(nb);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
++c;
|
|
}
|
|
|
|
this.length -= c;
|
|
return ret;
|
|
} // Consumes a specified amount of bytes from the buffered data.
|
|
|
|
}, {
|
|
key: "_getBuffer",
|
|
value: function _getBuffer(n) {
|
|
var ret = Buffer.allocUnsafe(n);
|
|
var p = this.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) this.head = p.next;else this.head = this.tail = null;
|
|
} else {
|
|
this.head = p;
|
|
p.data = buf.slice(nb);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
++c;
|
|
}
|
|
|
|
this.length -= c;
|
|
return ret;
|
|
} // Make sure the linked list only shows the minimal necessary information.
|
|
|
|
}, {
|
|
key: custom,
|
|
value: function value(_, options) {
|
|
return inspect(this, _objectSpread({}, options, {
|
|
// Only inspect one level.
|
|
depth: 0,
|
|
// It should not recurse.
|
|
customInspect: false
|
|
}));
|
|
}
|
|
}]);
|
|
|
|
return BufferList;
|
|
}();
|
|
},{"buffer":5,"util":4}],21:[function(require,module,exports){
|
|
(function (process){(function (){
|
|
'use strict'; // 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) {
|
|
if (!this._writableState) {
|
|
process.nextTick(emitErrorNT, this, err);
|
|
} else if (!this._writableState.errorEmitted) {
|
|
this._writableState.errorEmitted = true;
|
|
process.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) {
|
|
if (!_this._writableState) {
|
|
process.nextTick(emitErrorAndCloseNT, _this, err);
|
|
} else if (!_this._writableState.errorEmitted) {
|
|
_this._writableState.errorEmitted = true;
|
|
process.nextTick(emitErrorAndCloseNT, _this, err);
|
|
} else {
|
|
process.nextTick(emitCloseNT, _this);
|
|
}
|
|
} else if (cb) {
|
|
process.nextTick(emitCloseNT, _this);
|
|
cb(err);
|
|
} else {
|
|
process.nextTick(emitCloseNT, _this);
|
|
}
|
|
});
|
|
|
|
return this;
|
|
}
|
|
|
|
function emitErrorAndCloseNT(self, err) {
|
|
emitErrorNT(self, err);
|
|
emitCloseNT(self);
|
|
}
|
|
|
|
function emitCloseNT(self) {
|
|
if (self._writableState && !self._writableState.emitClose) return;
|
|
if (self._readableState && !self._readableState.emitClose) return;
|
|
self.emit('close');
|
|
}
|
|
|
|
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.finalCalled = false;
|
|
this._writableState.prefinished = false;
|
|
this._writableState.finished = false;
|
|
this._writableState.errorEmitted = false;
|
|
}
|
|
}
|
|
|
|
function emitErrorNT(self, err) {
|
|
self.emit('error', err);
|
|
}
|
|
|
|
function errorOrDestroy(stream, err) {
|
|
// We have tests that rely on errors being emitted
|
|
// in the same tick, so changing this is semver major.
|
|
// For now when you opt-in to autoDestroy we allow
|
|
// the error to be emitted nextTick. In a future
|
|
// semver major update we should change the default to this.
|
|
var rState = stream._readableState;
|
|
var wState = stream._writableState;
|
|
if (rState && rState.autoDestroy || wState && wState.autoDestroy) stream.destroy(err);else stream.emit('error', err);
|
|
}
|
|
|
|
module.exports = {
|
|
destroy: destroy,
|
|
undestroy: undestroy,
|
|
errorOrDestroy: errorOrDestroy
|
|
};
|
|
}).call(this)}).call(this,require('_process'))
|
|
},{"_process":10}],22:[function(require,module,exports){
|
|
// Ported from https://github.com/mafintosh/end-of-stream with
|
|
// permission from the author, Mathias Buus (@mafintosh).
|
|
'use strict';
|
|
|
|
var ERR_STREAM_PREMATURE_CLOSE = require('../../../errors').codes.ERR_STREAM_PREMATURE_CLOSE;
|
|
|
|
function once(callback) {
|
|
var called = false;
|
|
return function () {
|
|
if (called) return;
|
|
called = true;
|
|
|
|
for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
|
|
args[_key] = arguments[_key];
|
|
}
|
|
|
|
callback.apply(this, args);
|
|
};
|
|
}
|
|
|
|
function noop() {}
|
|
|
|
function isRequest(stream) {
|
|
return stream.setHeader && typeof stream.abort === 'function';
|
|
}
|
|
|
|
function eos(stream, opts, callback) {
|
|
if (typeof opts === 'function') return eos(stream, null, opts);
|
|
if (!opts) opts = {};
|
|
callback = once(callback || noop);
|
|
var readable = opts.readable || opts.readable !== false && stream.readable;
|
|
var writable = opts.writable || opts.writable !== false && stream.writable;
|
|
|
|
var onlegacyfinish = function onlegacyfinish() {
|
|
if (!stream.writable) onfinish();
|
|
};
|
|
|
|
var writableEnded = stream._writableState && stream._writableState.finished;
|
|
|
|
var onfinish = function onfinish() {
|
|
writable = false;
|
|
writableEnded = true;
|
|
if (!readable) callback.call(stream);
|
|
};
|
|
|
|
var readableEnded = stream._readableState && stream._readableState.endEmitted;
|
|
|
|
var onend = function onend() {
|
|
readable = false;
|
|
readableEnded = true;
|
|
if (!writable) callback.call(stream);
|
|
};
|
|
|
|
var onerror = function onerror(err) {
|
|
callback.call(stream, err);
|
|
};
|
|
|
|
var onclose = function onclose() {
|
|
var err;
|
|
|
|
if (readable && !readableEnded) {
|
|
if (!stream._readableState || !stream._readableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
|
|
return callback.call(stream, err);
|
|
}
|
|
|
|
if (writable && !writableEnded) {
|
|
if (!stream._writableState || !stream._writableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
|
|
return callback.call(stream, err);
|
|
}
|
|
};
|
|
|
|
var onrequest = function onrequest() {
|
|
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 && !stream._writableState) {
|
|
// legacy streams
|
|
stream.on('end', onlegacyfinish);
|
|
stream.on('close', onlegacyfinish);
|
|
}
|
|
|
|
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('end', onend);
|
|
stream.removeListener('error', onerror);
|
|
stream.removeListener('close', onclose);
|
|
};
|
|
}
|
|
|
|
module.exports = eos;
|
|
},{"../../../errors":13}],23:[function(require,module,exports){
|
|
module.exports = function () {
|
|
throw new Error('Readable.from is not available in the browser')
|
|
};
|
|
|
|
},{}],24:[function(require,module,exports){
|
|
// Ported from https://github.com/mafintosh/pump with
|
|
// permission from the author, Mathias Buus (@mafintosh).
|
|
'use strict';
|
|
|
|
var eos;
|
|
|
|
function once(callback) {
|
|
var called = false;
|
|
return function () {
|
|
if (called) return;
|
|
called = true;
|
|
callback.apply(void 0, arguments);
|
|
};
|
|
}
|
|
|
|
var _require$codes = require('../../../errors').codes,
|
|
ERR_MISSING_ARGS = _require$codes.ERR_MISSING_ARGS,
|
|
ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED;
|
|
|
|
function noop(err) {
|
|
// Rethrow the error if it exists to avoid swallowing it
|
|
if (err) throw err;
|
|
}
|
|
|
|
function isRequest(stream) {
|
|
return stream.setHeader && typeof stream.abort === 'function';
|
|
}
|
|
|
|
function destroyer(stream, reading, writing, callback) {
|
|
callback = once(callback);
|
|
var closed = false;
|
|
stream.on('close', function () {
|
|
closed = true;
|
|
});
|
|
if (eos === undefined) eos = require('./end-of-stream');
|
|
eos(stream, {
|
|
readable: reading,
|
|
writable: writing
|
|
}, function (err) {
|
|
if (err) return callback(err);
|
|
closed = true;
|
|
callback();
|
|
});
|
|
var destroyed = false;
|
|
return function (err) {
|
|
if (closed) return;
|
|
if (destroyed) return;
|
|
destroyed = true; // request.destroy just do .end - .abort is what we want
|
|
|
|
if (isRequest(stream)) return stream.abort();
|
|
if (typeof stream.destroy === 'function') return stream.destroy();
|
|
callback(err || new ERR_STREAM_DESTROYED('pipe'));
|
|
};
|
|
}
|
|
|
|
function call(fn) {
|
|
fn();
|
|
}
|
|
|
|
function pipe(from, to) {
|
|
return from.pipe(to);
|
|
}
|
|
|
|
function popCallback(streams) {
|
|
if (!streams.length) return noop;
|
|
if (typeof streams[streams.length - 1] !== 'function') return noop;
|
|
return streams.pop();
|
|
}
|
|
|
|
function pipeline() {
|
|
for (var _len = arguments.length, streams = new Array(_len), _key = 0; _key < _len; _key++) {
|
|
streams[_key] = arguments[_key];
|
|
}
|
|
|
|
var callback = popCallback(streams);
|
|
if (Array.isArray(streams[0])) streams = streams[0];
|
|
|
|
if (streams.length < 2) {
|
|
throw new ERR_MISSING_ARGS('streams');
|
|
}
|
|
|
|
var error;
|
|
var destroys = streams.map(function (stream, i) {
|
|
var reading = i < streams.length - 1;
|
|
var writing = i > 0;
|
|
return destroyer(stream, reading, writing, function (err) {
|
|
if (!error) error = err;
|
|
if (err) destroys.forEach(call);
|
|
if (reading) return;
|
|
destroys.forEach(call);
|
|
callback(error);
|
|
});
|
|
});
|
|
return streams.reduce(pipe);
|
|
}
|
|
|
|
module.exports = pipeline;
|
|
},{"../../../errors":13,"./end-of-stream":22}],25:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var ERR_INVALID_OPT_VALUE = require('../../../errors').codes.ERR_INVALID_OPT_VALUE;
|
|
|
|
function highWaterMarkFrom(options, isDuplex, duplexKey) {
|
|
return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null;
|
|
}
|
|
|
|
function getHighWaterMark(state, options, duplexKey, isDuplex) {
|
|
var hwm = highWaterMarkFrom(options, isDuplex, duplexKey);
|
|
|
|
if (hwm != null) {
|
|
if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) {
|
|
var name = isDuplex ? duplexKey : 'highWaterMark';
|
|
throw new ERR_INVALID_OPT_VALUE(name, hwm);
|
|
}
|
|
|
|
return Math.floor(hwm);
|
|
} // Default value
|
|
|
|
|
|
return state.objectMode ? 16 : 16 * 1024;
|
|
}
|
|
|
|
module.exports = {
|
|
getHighWaterMark: getHighWaterMark
|
|
};
|
|
},{"../../../errors":13}],26:[function(require,module,exports){
|
|
module.exports = require('events').EventEmitter;
|
|
|
|
},{"events":6}],27:[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';
|
|
|
|
/*<replacement>*/
|
|
|
|
var Buffer = require('safe-buffer').Buffer;
|
|
/*</replacement>*/
|
|
|
|
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":11}],28:[function(require,module,exports){
|
|
(function (setImmediate,clearImmediate){(function (){
|
|
var nextTick = require('process/browser.js').nextTick;
|
|
var apply = Function.prototype.apply;
|
|
var slice = Array.prototype.slice;
|
|
var immediateIds = {};
|
|
var nextImmediateId = 0;
|
|
|
|
// DOM APIs, for completeness
|
|
|
|
exports.setTimeout = function() {
|
|
return new Timeout(apply.call(setTimeout, window, arguments), clearTimeout);
|
|
};
|
|
exports.setInterval = function() {
|
|
return new Timeout(apply.call(setInterval, window, arguments), clearInterval);
|
|
};
|
|
exports.clearTimeout =
|
|
exports.clearInterval = function(timeout) { timeout.close(); };
|
|
|
|
function Timeout(id, clearFn) {
|
|
this._id = id;
|
|
this._clearFn = clearFn;
|
|
}
|
|
Timeout.prototype.unref = Timeout.prototype.ref = function() {};
|
|
Timeout.prototype.close = function() {
|
|
this._clearFn.call(window, this._id);
|
|
};
|
|
|
|
// Does not start the time, just sets up the members needed.
|
|
exports.enroll = function(item, msecs) {
|
|
clearTimeout(item._idleTimeoutId);
|
|
item._idleTimeout = msecs;
|
|
};
|
|
|
|
exports.unenroll = function(item) {
|
|
clearTimeout(item._idleTimeoutId);
|
|
item._idleTimeout = -1;
|
|
};
|
|
|
|
exports._unrefActive = exports.active = function(item) {
|
|
clearTimeout(item._idleTimeoutId);
|
|
|
|
var msecs = item._idleTimeout;
|
|
if (msecs >= 0) {
|
|
item._idleTimeoutId = setTimeout(function onTimeout() {
|
|
if (item._onTimeout)
|
|
item._onTimeout();
|
|
}, msecs);
|
|
}
|
|
};
|
|
|
|
// That's not how node.js implements it but the exposed api is the same.
|
|
exports.setImmediate = typeof setImmediate === "function" ? setImmediate : function(fn) {
|
|
var id = nextImmediateId++;
|
|
var args = arguments.length < 2 ? false : slice.call(arguments, 1);
|
|
|
|
immediateIds[id] = true;
|
|
|
|
nextTick(function onNextTick() {
|
|
if (immediateIds[id]) {
|
|
// fn.call() is faster so we optimize for the common use-case
|
|
// @see http://jsperf.com/call-apply-segu
|
|
if (args) {
|
|
fn.apply(null, args);
|
|
} else {
|
|
fn.call(null);
|
|
}
|
|
// Prevent ids from leaking
|
|
exports.clearImmediate(id);
|
|
}
|
|
});
|
|
|
|
return id;
|
|
};
|
|
|
|
exports.clearImmediate = typeof clearImmediate === "function" ? clearImmediate : function(id) {
|
|
delete immediateIds[id];
|
|
};
|
|
}).call(this)}).call(this,require("timers").setImmediate,require("timers").clearImmediate)
|
|
},{"process/browser.js":10,"timers":28}],29:[function(require,module,exports){
|
|
(function (global){(function (){
|
|
|
|
/**
|
|
* 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)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{}]},{},[2])(2)
|
|
});
|