diff --git a/assets/static/js/index-client-info.js b/assets/static/js/index-client-info.js index d43d06c..f0a7d66 100644 --- a/assets/static/js/index-client-info.js +++ b/assets/static/js/index-client-info.js @@ -16,6 +16,21 @@ var loadClientInfo = (function ($) { type: 'none' }).done(function (result) { if (result.success) { + var proxies = []; + result.data.proxies.forEach(function (proxy){ + var items = flatJSON(proxy.ProxyConfigurer); + proxies.push(expandJSON(items)) + }) + var visitors = []; + result.data.visitors.forEach(function (visitor){ + var items = flatJSON(visitor.VisitorConfigurer); + visitors.push(expandJSON(items)) + }) + + var newD = $.extend({},result.data,true); + newD.proxies = proxies; + newD.visitors = visitors; + console.log(TOML.stringify(newD)) renderClientInfo(result.data); } else { layui.layer.msg(result.message); diff --git a/assets/static/js/index-proxy-list.js b/assets/static/js/index-proxy-list.js index ffeaf3d..bc5a988 100644 --- a/assets/static/js/index-proxy-list.js +++ b/assets/static/js/index-proxy-list.js @@ -1,120 +1,5 @@ var loadProxyInfo = (function ($) { var i18n = {}, currentProxyType, currentTitle; - //param names in Basic tab - var basicParams = [ - { - name: 'name', - defaultValue: '-' - }, { - name: 'type', - defaultValue: '-' - }, { - name: 'localIP', - defaultValue: '-' - }, { - name: 'localPort', - defaultValue: '-' - }, { - name: 'customDomains', - defaultValue: '-' - }, { - name: 'subdomain', - defaultValue: '-' - }, { - name: 'remotePort', - defaultValue: '-' - }, { - name: 'transport.useEncryption', - defaultValue: 'true', - }, { - name: 'transport.useCompression', - defaultValue: 'true', - } - ]; - - /** - * a.b.c = 1 - * a.b.d = [2,3] - * to - * {a: { - * b: { - * c: 1 - * d: "[2,3]" - * } - * } - * } - * - * @param obj json object - * @param names all names split from name string like 'a.b.c' - * @param value default value - */ - function expandJSON(obj, names, value) { - var currentIndex = this.index || 0; - var childrenIndex = (currentIndex + 1) > names.length ? null : (currentIndex + 1); - var currentName = names[currentIndex], currentValue = {}; - var childrenName = childrenIndex == null ? null : names[childrenIndex]; - if (obj.hasOwnProperty(currentName)) { - currentValue = obj[currentName]; - } else { - obj[currentName] = currentValue; - } - - if (childrenName !== null) { - this.index = childrenIndex; - expandJSON(currentValue, names, value); - } else { - if (value != null) { - if (Array.isArray(value)) { - obj[currentName] = JSON.stringify(value); - } else { - obj[currentName] = value; - } - } - this.index = 0; - } - } - - /** - * {a: { - * b: { - * c: 1 - * d: [2,3] - * } - * } - * } - * to - * { - * 'a.b.c': 1, - * 'a.b.d': '[2,3]' - * } - * - * @param obj json object - * @returns {*} flatted json key array - */ - function flatJSON(obj) { - var flat = function (obj, prentKey, flattedJSON) { - flattedJSON = flattedJSON || {}; - prentKey = prentKey || ''; - if (prentKey !== '') - prentKey = prentKey + '.'; - for (var key in obj) { - var value = obj[key]; - if (typeof value === 'object' && Object.prototype.toString.call(value) === '[object Object]') { - flat(value, prentKey + key, flattedJSON); - } else { - if (prentKey === 'plugin.ClientPluginOptions.') - prentKey = 'plugin.'; - if (Array.isArray(value)) { - flattedJSON[prentKey + key] = JSON.stringify(value); - } else { - flattedJSON[prentKey + key] = value; - } - } - } - return flattedJSON; - } - return flat(obj); - } /** * get proxy info @@ -282,9 +167,9 @@ var loadProxyInfo = (function ($) { basicParams.forEach(function (basicName) { var name = basicName.name; if (name.indexOf('.') !== -1) { - var names = name.split('.'); - expandJSON(tempData, names, 0, basicName.defaultValue); - expandJSON(basicData, names, 0, null); + var keys = name.split('.'); + expandJSONKeys(tempData, keys, basicName.defaultValue); + expandJSONKeys(basicData, keys, null); } eval('basicData.' + name + ' = ' + 'tempData.' + name); @@ -325,6 +210,7 @@ var loadProxyInfo = (function ($) { var value = $(this).find('input').last().val(); formData[name] = value; }); + addOrUpdate(formData, index, update); } }, @@ -375,15 +261,20 @@ var loadProxyInfo = (function ($) { var loading = layui.layer.load(); var url = ''; if (update) { - url = '/update'; + url = '/update?type=' + currentProxyType; } else { url = '/add?type=' + currentProxyType; } + + var tomlStr = TOML.stringify(expandJSON(data)); + + //todo get all proxy and replace or add a new proxy in it + $.ajax({ url: url, type: 'post', contentType: 'application/json', - data: JSON.stringify(data), + data: JSON.stringify(expandJSON(data)), success: function (result) { if (result.success) { layui.layer.close(index); diff --git a/assets/static/js/json-process.js b/assets/static/js/json-process.js new file mode 100644 index 0000000..854d083 --- /dev/null +++ b/assets/static/js/json-process.js @@ -0,0 +1,183 @@ +(function (){ + //param names in Basic tab + var basicParams = [ + { + name: 'name', + defaultValue: '-' + }, { + name: 'type', + defaultValue: '-' + }, { + name: 'localIP', + defaultValue: '-' + }, { + name: 'localPort', + defaultValue: '-' + }, { + name: 'customDomains', + defaultValue: '-' + }, { + name: 'subdomain', + defaultValue: '-' + }, { + name: 'remotePort', + defaultValue: '-' + }, { + name: 'transport.useEncryption', + defaultValue: 'true', + }, { + name: 'transport.useCompression', + defaultValue: 'true', + } + ]; + var mapParams = [{ + name: 'plugin.ClientPluginOptions', + map: 'plugin' + }]; + var paramTypes = { + number: [ + 'healthCheck.timeoutSeconds', + 'healthCheck.maxFailed', + 'healthCheck.intervalSeconds', + 'localPort', + ], + boolean: [ + 'transport.useEncryption', + 'transport.useCompression' + ], + array: [ + 'customDomains', + 'locations', + 'allowUsers' + ], + map: [ + 'metadatas', + 'requestHeaders.set', + 'plugin.ClientPluginOptions.requestHeaders.set' + ] + } + + /** + * a.b.c = 1 + * a.b.d = [2,3] + * to + * {a: { + * b: { + * c: 1 + * d: "[2,3]" + * } + * } + * } + * + * @param obj json object + * @param keys all keys split from key string like 'a.b.c' + * @param value default value + * @param stringifyArray if true, when value is an array, it will stringify by JSON.stringify(value) + */ + function expandJSONKeys(obj, keys, value, stringifyArray) { + stringifyArray = stringifyArray == null ? true : stringifyArray; + var currentIndex = this.index || 0; + var childrenIndex = (currentIndex + 1) > keys.length ? null : (currentIndex + 1); + var currentKey = keys[currentIndex], currentValue = {}; + var childrenKey = childrenIndex == null ? null : keys[childrenIndex]; + if (obj.hasOwnProperty(currentKey)) { + currentValue = obj[currentKey]; + } else { + obj[currentKey] = currentValue; + } + + if (childrenKey != null) { + this.index = childrenIndex; + expandJSONKeys(currentValue, keys, value, stringifyArray); + } else { + if (value != null) { + if (Array.isArray(value) && stringifyArray) { + obj[currentKey] = JSON.stringify(value); + } else { + obj[currentKey] = value; + } + } + this.index = 0; + } + } + + function expandJSON(obj) { + var newObj = {}; + for (var name in obj) { + var value = obj[name]; + if (value === '') { + continue; + } + if (paramTypes.number.indexOf(name) !== -1) { + value = parseInt(value) || 0; + } else if (paramTypes.boolean.indexOf(name) !== -1) { + value = Boolean(value) || false; + } else if (paramTypes.array.indexOf(name) !== -1) { + value = eval('(' + value + ')') || []; + } else { + for (var i = 0; i < paramTypes.map.length; i++) { + var key = paramTypes.map[i]; + if (name.startsWith(key)) { + var json = {}; + json[name.substring(key.length + 1, name.length)] = value; + value = json; + name = name.substring(0, key.length) + break; + } + } + } + expandJSONKeys(newObj, name.split("."), value, false); + } + return newObj; + } + + /** + * {a: { + * b: { + * c: 1 + * d: [2,3] + * } + * } + * } + * to + * { + * 'a.b.c': 1, + * 'a.b.d': '[2,3]' + * } + * + * @param obj json object + * @returns {*} flatted json key array + */ + function flatJSON(obj) { + var flat = function (obj, prentKey, flattedJSON) { + flattedJSON = flattedJSON || {}; + prentKey = prentKey || ''; + if (prentKey !== '') + prentKey = prentKey + '.'; + for (var key in obj) { + var value = obj[key]; + if (typeof value === 'object' && Object.prototype.toString.call(value) === '[object Object]') { + flat(value, prentKey + key, flattedJSON); + } else { + for (var mapParam of mapParams) { + if (prentKey.startsWith(mapParam.name)) { + prentKey = mapParam.map + '.'; + break; + } + } + if (Array.isArray(value)) { + flattedJSON[prentKey + key] = JSON.stringify(value); + } else { + flattedJSON[prentKey + key] = value; + } + } + } + return flattedJSON; + } + return flat(obj); + } + + window.expandJSONKeys = expandJSONKeys; + window.expandJSON = expandJSON; + window.flatJSON = flatJSON; +})(); \ No newline at end of file diff --git a/assets/static/js/toml.js b/assets/static/js/toml.js new file mode 100644 index 0000000..f8d9f62 --- /dev/null +++ b/assets/static/js/toml.js @@ -0,0 +1,8319 @@ +(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.TOML = 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 { + const terr = new TomlError(err.message) + terr.code = err.code + terr.wrapped = err + return terr +} +module.exports = exports.TomlError = TomlError; + +},{}],3:[function(require,module,exports){ +(function (setImmediate){(function (){ +'use strict' +module.exports = parseAsync + +const TOMLParser = require('../toml') +const prettyError = require('../parse/pretty-error') + +function parseAsync(str, opts) { + if (!opts) opts = {} + const index = 0 + const blocksize = opts.blocksize || 40960 + const parser = new TOMLParser() + return new Promise((resolve, reject) => { + setImmediate(parseAsyncNext, index, blocksize, resolve, reject) + }) + function parseAsyncNext(index, blocksize, resolve, reject) { + if (index >= str.length) { + try { + return resolve(parser.finish()) + } catch (err) { + return reject(prettyError(err, str)) + } + } + try { + parser.parse(str.slice(index, index + blocksize)) + setImmediate(parseAsyncNext, index + blocksize, blocksize, resolve, reject) + } catch (err) { + reject(prettyError(err, str)) + } + } +} + +}).call(this)}).call(this,require("timers").setImmediate) +},{"../parse/pretty-error":5,"../toml":10,"timers":40}],4:[function(require,module,exports){ +'use strict' +module.exports = require('./string.js') +module.exports.async = require('./async.js') +module.exports.stream = require('./stream.js') +module.exports.prettyError = require('./pretty-error.js') + +},{"./async.js":3,"./pretty-error.js":5,"./stream.js":6,"./string.js":7}],5:[function(require,module,exports){ +'use strict' +module.exports = prettyError + +function prettyError (err, buf) { + /* istanbul ignore if */ + if (err.pos == null || err.line == null) return err + let msg = err.message + msg += ` at row ${err.line + 1}, col ${err.col + 1}, pos ${err.pos}:\n` + + /* istanbul ignore else */ + if (buf && buf.split) { + const lines = buf.split(/\n/) + const lineNumWidth = String(Math.min(lines.length, err.line + 3)).length + let linePadding = ' ' + while (linePadding.length < lineNumWidth) linePadding += ' ' + for (let ii = Math.max(0, err.line - 1); ii < Math.min(lines.length, err.line + 2); ++ii) { + let lineNum = String(ii + 1) + if (lineNum.length < lineNumWidth) lineNum = ' ' + lineNum + if (err.line === ii) { + msg += lineNum + '> ' + lines[ii] + '\n' + msg += linePadding + ' ' + for (let hh = 0; hh < err.col; ++hh) { + msg += ' ' + } + msg += '^\n' + } else { + msg += lineNum + ': ' + lines[ii] + '\n' + } + } + } + err.message = msg + '\n' + return err +} + +},{}],6:[function(require,module,exports){ +'use strict' +module.exports = parseStream + +const stream = require('stream') +const TOMLParser = require('../toml') + +function parseStream (stm) { + if (stm) { + return parseReadable(stm) + } else { + return parseTransform(stm) + } +} + +function parseReadable (stm) { + const parser = new TOMLParser() + stm.setEncoding('utf8') + return new Promise((resolve, reject) => { + let readable + let ended = false + let errored = false + function finish () { + ended = true + if (readable) return + try { + resolve(parser.finish()) + } catch (err) { + reject(err) + } + } + function error (err) { + errored = true + reject(err) + } + stm.once('end', finish) + stm.once('error', error) + readNext() + + function readNext () { + readable = true + let data + while ((data = stm.read()) !== null) { + try { + parser.parse(data) + } catch (err) { + return error(err) + } + } + readable = false + /* istanbul ignore if */ + if (ended) return finish() + /* istanbul ignore if */ + if (errored) return + stm.once('readable', readNext) + } + }) +} + +function parseTransform () { + const parser = new TOMLParser() + return new stream.Transform({ + objectMode: true, + transform (chunk, encoding, cb) { + try { + parser.parse(chunk.toString(encoding)) + } catch (err) { + this.emit('error', err) + } + cb() + }, + flush (cb) { + try { + this.push(parser.finish()) + } catch (err) { + this.emit('error', err) + } + cb() + } + }) +} + +},{"../toml":10,"stream":24}],7:[function(require,module,exports){ +(function (global){(function (){ +'use strict' +module.exports = parseString + +const TOMLParser = require('../toml') +const prettyError = require('../parse/pretty-error') + +function parseString (str) { + if (global.Buffer && global.Buffer.isBuffer(str)) { + str = str.toString('utf8') + } + const parser = new TOMLParser() + try { + parser.parse(str) + return parser.finish() + } catch (err) { + throw prettyError(err, str) + } +} + +}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"../parse/pretty-error":5,"../toml":10}],8:[function(require,module,exports){ +'use strict' +const ParserEND = 0x110000 +class ParserError extends Error { + /* istanbul ignore next */ + constructor (msg, filename, linenumber) { + super('[ParserError] ' + msg, filename, linenumber) + this.name = 'ParserError' + this.code = 'ParserError' + if (Error.captureStackTrace) Error.captureStackTrace(this, ParserError) + } +} +class State { + constructor (parser) { + this.parser = parser + this.buf = '' + this.returned = null + this.result = null + this.resultTable = null + this.resultArr = null + } +} +class Parser { + constructor () { + this.pos = 0 + this.col = 0 + this.line = 0 + this.obj = {} + this.ctx = this.obj + this.stack = [] + this._buf = '' + this.char = null + this.ii = 0 + this.state = new State(this.parseStart) + } + + parse (str) { + /* istanbul ignore next */ + if (str.length === 0 || str.length == null) return + + this._buf = String(str) + this.ii = -1 + this.char = -1 + let getNext + while (getNext === false || this.nextChar()) { + getNext = this.runOne() + } + this._buf = null + } + nextChar () { + if (this.char === 0x0A) { + ++this.line + this.col = -1 + } + ++this.ii + this.char = this._buf.codePointAt(this.ii) + ++this.pos + ++this.col + return this.haveBuffer() + } + haveBuffer () { + return this.ii < this._buf.length + } + runOne () { + return this.state.parser.call(this, this.state.returned) + } + finish () { + this.char = ParserEND + let last + do { + last = this.state.parser + this.runOne() + } while (this.state.parser !== last) + + this.ctx = null + this.state = null + this._buf = null + + return this.obj + } + next (fn) { + /* istanbul ignore next */ + if (typeof fn !== 'function') throw new ParserError('Tried to set state to non-existent state: ' + JSON.stringify(fn)) + this.state.parser = fn + } + goto (fn) { + this.next(fn) + return this.runOne() + } + call (fn, returnWith) { + if (returnWith) this.next(returnWith) + this.stack.push(this.state) + this.state = new State(fn) + } + callNow (fn, returnWith) { + this.call(fn, returnWith) + return this.runOne() + } + return (value) { + /* istanbul ignore next */ + if (this.stack.length === 0) throw this.error(new ParserError('Stack underflow')) + if (value === undefined) value = this.state.buf + this.state = this.stack.pop() + this.state.returned = value + } + returnNow (value) { + this.return(value) + return this.runOne() + } + consume () { + /* istanbul ignore next */ + if (this.char === ParserEND) throw this.error(new ParserError('Unexpected end-of-buffer')) + this.state.buf += this._buf[this.ii] + } + error (err) { + err.line = this.line + err.col = this.col + err.pos = this.pos + return err + } + /* istanbul ignore next */ + parseStart () { + throw new ParserError('Must declare a parseStart method') + } +} +Parser.END = ParserEND +Parser.Error = ParserError +module.exports = Parser + +},{}],9:[function(require,module,exports){ +'use strict' +module.exports = stringify +module.exports.value = stringifyInline + +function stringify(obj, separator) { + if (obj === null) throw typeError('null') + if (obj === void (0)) throw typeError('undefined') + if (typeof obj !== 'object') throw typeError(typeof obj) + + if (typeof obj.toJSON === 'function') obj = obj.toJSON() + if (obj == null) return null + const type = tomlType(obj) + if (type !== 'table') throw typeError(type) + return stringifyObject('', '', obj, separator) +} + +function typeError (type) { + return new Error('Can only stringify objects, not ' + type) +} + +function getInlineKeys (obj) { + return Object.keys(obj).filter(key => isInline(obj[key])) +} +function getComplexKeys (obj) { + return Object.keys(obj).filter(key => !isInline(obj[key])) +} + +function toJSON (obj) { + let nobj = Array.isArray(obj) ? [] : Object.prototype.hasOwnProperty.call(obj, '__proto__') ? {['__proto__']: undefined} : {} + for (let prop of Object.keys(obj)) { + if (obj[prop] && typeof obj[prop].toJSON === 'function' && !('toISOString' in obj[prop])) { + nobj[prop] = obj[prop].toJSON() + } else { + nobj[prop] = obj[prop] + } + } + return nobj +} + +function stringifyObject (prefix, indent, obj, separator) { + obj = toJSON(obj) + let inlineKeys + let complexKeys + inlineKeys = getInlineKeys(obj) + complexKeys = getComplexKeys(obj) + const result = [] + const inlineIndent = indent || '' + inlineKeys.forEach(key => { + var type = tomlType(obj[key]) + if (type !== 'undefined' && type !== 'null') { + result.push(inlineIndent + stringifyKey(key) + ' = ' + stringifyAnyInline(obj[key], true, separator)) + } + }) + if (result.length > 0) result.push('') + const complexIndent = prefix && inlineKeys.length > 0 ? indent + ' ' : '' + complexKeys.forEach(key => { + result.push(stringifyComplex(prefix, complexIndent, key, obj[key], separator)) + }) + return result.join('\n') +} + +function isInline (value) { + switch (tomlType(value)) { + case 'undefined': + case 'null': + case 'integer': + case 'nan': + case 'float': + case 'boolean': + case 'string': + case 'datetime': + return true + case 'array': + return value.length === 0 || tomlType(value[0]) !== 'table' + case 'table': + return Object.keys(value).length === 0 + /* istanbul ignore next */ + default: + return false + } +} + +function tomlType (value) { + if (value === undefined) { + return 'undefined' + } else if (value === null) { + return 'null' + /* eslint-disable valid-typeof */ + } else if (typeof value === 'bigint' || (Number.isInteger(value) && !Object.is(value, -0))) { + return 'integer' + } else if (typeof value === 'number') { + return 'float' + } else if (typeof value === 'boolean') { + return 'boolean' + } else if (typeof value === 'string') { + return 'string' + } else if ('toISOString' in value) { + return isNaN(value) ? 'undefined' : 'datetime' + } else if (Array.isArray(value)) { + return 'array' + } else { + return 'table' + } +} + +function stringifyKey (key) { + const keyStr = String(key) + if (/^[-A-Za-z0-9_]+$/.test(keyStr)) { + return keyStr + } else { + return stringifyBasicString(keyStr) + } +} + +function stringifyBasicString (str) { + return '"' + escapeString(str).replace(/"/g, '\\"') + '"' +} + +function stringifyLiteralString (str) { + return "'" + str + "'" +} + +function numpad (num, str) { + while (str.length < num) str = '0' + str + return str +} + +function escapeString (str) { + return str.replace(/\\/g, '\\\\') + .replace(/[\b]/g, '\\b') + .replace(/\t/g, '\\t') + .replace(/\n/g, '\\n') + .replace(/\f/g, '\\f') + .replace(/\r/g, '\\r') + /* eslint-disable no-control-regex */ + .replace(/([\u0000-\u001f\u007f])/, c => '\\u' + numpad(4, c.codePointAt(0).toString(16))) + /* eslint-enable no-control-regex */ +} + +function stringifyMultilineString (str) { + let escaped = str.split(/\n/).map(str => { + return escapeString(str).replace(/"(?="")/g, '\\"') + }).join('\n') + if (escaped.slice(-1) === '"') escaped += '\\\n' + return '"""\n' + escaped + '"""' +} + +function stringifyAnyInline (value, multilineOk, separator) { + let type = tomlType(value) + if (type === 'string') { + if (multilineOk && /\n/.test(value)) { + type = 'string-multiline' + } else if (!/[\b\t\n\f\r']/.test(value) && /"/.test(value)) { + type = 'string-literal' + } + } + return stringifyInline(value, type, separator) +} + +function stringifyInline (value, type, separator) { + /* istanbul ignore if */ + if (!type) type = tomlType(value) + switch (type) { + case 'string-multiline': + return stringifyMultilineString(value) + case 'string': + return stringifyBasicString(value) + case 'string-literal': + return stringifyLiteralString(value) + case 'integer': + return stringifyInteger(value, separator) + case 'float': + return stringifyFloat(value, separator) + case 'boolean': + return stringifyBoolean(value) + case 'datetime': + return stringifyDatetime(value) + case 'array': + return stringifyInlineArray(value.filter(_ => tomlType(_) !== 'null' && tomlType(_) !== 'undefined' && tomlType(_) !== 'nan')) + case 'table': + return stringifyInlineTable(value) + /* istanbul ignore next */ + default: + throw typeError(type) + } +} + +function stringifyInteger (value, separator) { + if(separator!=null && separator !== ''){ + return String(value).replace(/\B(?=(\d{3})+(?!\d))/g, separator) + } + return String(value); +} + +function stringifyFloat (value, separator) { + if (value === Infinity) { + return 'inf' + } else if (value === -Infinity) { + return '-inf' + } else if (Object.is(value, NaN)) { + return 'nan' + } else if (Object.is(value, -0)) { + return '-0.0' + } + const [int, dec] = String(value).split('.') + return stringifyInteger(int, separator) + '.' + dec +} + +function stringifyBoolean (value) { + return String(value) +} + +function stringifyDatetime (value) { + return value.toISOString() +} + +function stringifyInlineArray (values) { + values = toJSON(values) + let result = '[' + const stringified = values.map(_ => stringifyInline(_)) + if (stringified.join(', ').length > 60 || /\n/.test(stringified)) { + result += '\n ' + stringified.join(',\n ') + '\n' + } else { + result += ' ' + stringified.join(', ') + (stringified.length > 0 ? ' ' : '') + } + return result + ']' +} + +function stringifyInlineTable (value) { + value = toJSON(value) + const result = [] + Object.keys(value).forEach(key => { + result.push(stringifyKey(key) + ' = ' + stringifyAnyInline(value[key], false)) + }) + return '{ ' + result.join(', ') + (result.length > 0 ? ' ' : '') + '}' +} + +function stringifyComplex (prefix, indent, key, value, separator) { + const valueType = tomlType(value) + /* istanbul ignore else */ + if (valueType === 'array') { + return stringifyArrayOfTables(prefix, indent, key, value, separator) + } else if (valueType === 'table') { + return stringifyComplexTable(prefix, indent, key, value, separator) + } else { + throw typeError(valueType) + } +} + +function stringifyArrayOfTables (prefix, indent, key, values, separator) { + values = toJSON(values) + const firstValueType = tomlType(values[0]) + /* istanbul ignore if */ + if (firstValueType !== 'table') throw typeError(firstValueType) + const fullKey = prefix + stringifyKey(key) + let result = '' + values.forEach(table => { + if (result.length > 0) result += '\n' + result += indent + '[[' + fullKey + ']]\n' + result += stringifyObject(fullKey + '.', indent, table, separator) + }) + return result +} + +function stringifyComplexTable (prefix, indent, key, value, separator) { + const fullKey = prefix + stringifyKey(key) + let result = '' + if (getInlineKeys(value).length > 0) { + result += indent + '[' + fullKey + ']\n' + } + return result + stringifyObject(fullKey + '.', indent, value, separator) +} + +},{}],10:[function(require,module,exports){ +(function (global){(function (){ +'use strict' +/* eslint-disable no-new-wrappers, no-eval, camelcase, operator-linebreak */ +module.exports = makeParserClass(require('./parser')) +module.exports.makeParserClass = makeParserClass + +const TomlError = require('./error') + +const createDateTime = require('./utils/create-datetime') +const createDateTimeFloat = require('./utils/create-datetime-float') +const createDate = require('./utils/create-date') +const createTime = require('./utils/create-time') + +const CTRL_I = 0x09 +const CTRL_J = 0x0A +const CTRL_M = 0x0D +const CTRL_CHAR_BOUNDARY = 0x1F // the last non-character in the latin1 region of unicode, except DEL +const CHAR_SP = 0x20 +const CHAR_QUOT = 0x22 +const CHAR_NUM = 0x23 +const CHAR_APOS = 0x27 +const CHAR_PLUS = 0x2B +const CHAR_COMMA = 0x2C +const CHAR_HYPHEN = 0x2D +const CHAR_PERIOD = 0x2E +const CHAR_0 = 0x30 +const CHAR_1 = 0x31 +const CHAR_7 = 0x37 +const CHAR_9 = 0x39 +const CHAR_COLON = 0x3A +const CHAR_EQUALS = 0x3D +const CHAR_A = 0x41 +const CHAR_E = 0x45 +const CHAR_F = 0x46 +const CHAR_T = 0x54 +const CHAR_U = 0x55 +const CHAR_Z = 0x5A +const CHAR_LOWBAR = 0x5F +const CHAR_a = 0x61 +const CHAR_b = 0x62 +const CHAR_e = 0x65 +const CHAR_f = 0x66 +const CHAR_i = 0x69 +const CHAR_l = 0x6C +const CHAR_n = 0x6E +const CHAR_o = 0x6F +const CHAR_r = 0x72 +const CHAR_s = 0x73 +const CHAR_t = 0x74 +const CHAR_u = 0x75 +const CHAR_x = 0x78 +const CHAR_z = 0x7A +const CHAR_LCUB = 0x7B +const CHAR_RCUB = 0x7D +const CHAR_LSQB = 0x5B +const CHAR_BSOL = 0x5C +const CHAR_RSQB = 0x5D +const CHAR_DEL = 0x7F +const SURROGATE_FIRST = 0xD800 +const SURROGATE_LAST = 0xDFFF + +const escapes = { + [CHAR_b]: '\u0008', + [CHAR_t]: '\u0009', + [CHAR_n]: '\u000A', + [CHAR_f]: '\u000C', + [CHAR_r]: '\u000D', + [CHAR_QUOT]: '\u0022', + [CHAR_BSOL]: '\u005C' +} + +function isDigit (cp) { + return cp >= CHAR_0 && cp <= CHAR_9 +} +function isHexit (cp) { + return (cp >= CHAR_A && cp <= CHAR_F) || (cp >= CHAR_a && cp <= CHAR_f) || (cp >= CHAR_0 && cp <= CHAR_9) +} +function isBit (cp) { + return cp === CHAR_1 || cp === CHAR_0 +} +function isOctit (cp) { + return (cp >= CHAR_0 && cp <= CHAR_7) +} +function isAlphaNumQuoteHyphen (cp) { + return (cp >= CHAR_A && cp <= CHAR_Z) + || (cp >= CHAR_a && cp <= CHAR_z) + || (cp >= CHAR_0 && cp <= CHAR_9) + || cp === CHAR_APOS + || cp === CHAR_QUOT + || cp === CHAR_LOWBAR + || cp === CHAR_HYPHEN +} +function isAlphaNumHyphen (cp) { + return (cp >= CHAR_A && cp <= CHAR_Z) + || (cp >= CHAR_a && cp <= CHAR_z) + || (cp >= CHAR_0 && cp <= CHAR_9) + || cp === CHAR_LOWBAR + || cp === CHAR_HYPHEN +} +const _type = Symbol('type') +const _declared = Symbol('declared') + +const hasOwnProperty = Object.prototype.hasOwnProperty +const defineProperty = Object.defineProperty +const descriptor = {configurable: true, enumerable: true, writable: true, value: undefined} + +function hasKey (obj, key) { + if (hasOwnProperty.call(obj, key)) return true + if (key === '__proto__') defineProperty(obj, '__proto__', descriptor) + return false +} + +const INLINE_TABLE = Symbol('inline-table') +function InlineTable () { + return Object.defineProperties({}, { + [_type]: {value: INLINE_TABLE} + }) +} +function isInlineTable (obj) { + if (obj === null || typeof (obj) !== 'object') return false + return obj[_type] === INLINE_TABLE +} + +const TABLE = Symbol('table') +function Table () { + return Object.defineProperties({}, { + [_type]: {value: TABLE}, + [_declared]: {value: false, writable: true} + }) +} +function isTable (obj) { + if (obj === null || typeof (obj) !== 'object') return false + return obj[_type] === TABLE +} + +const _contentType = Symbol('content-type') +const INLINE_LIST = Symbol('inline-list') +function InlineList (type) { + return Object.defineProperties([], { + [_type]: {value: INLINE_LIST}, + [_contentType]: {value: type} + }) +} +function isInlineList (obj) { + if (obj === null || typeof (obj) !== 'object') return false + return obj[_type] === INLINE_LIST +} + +const LIST = Symbol('list') +function List () { + return Object.defineProperties([], { + [_type]: {value: LIST} + }) +} +function isList (obj) { + if (obj === null || typeof (obj) !== 'object') return false + return obj[_type] === LIST +} + +const _inspect = 'inspect' + +class BoxedBigInt { + constructor (value) { + try { + this.value = global.BigInt.asIntN(64, value) + } catch (_) { + /* istanbul ignore next */ + this.value = null + } + Object.defineProperty(this, _type, {value: INTEGER}) + } + isNaN () { + return this.value === null + } + /* istanbul ignore next */ + toString () { + return String(this.value) + } + /* istanbul ignore next */ + [_inspect] () { + return `[BigInt: ${this.toString()}]}` + } + valueOf () { + return this.value + } +} + +const INTEGER = Symbol('integer') +function Integer (value) { + let num = Number(value) + // -0 is a float thing, not an int thing + if (Object.is(num, -0)) num = 0 + /* istanbul ignore else */ + if (global.BigInt && !Number.isSafeInteger(num)) { + return new BoxedBigInt(value) + } else { + /* istanbul ignore next */ + return Object.defineProperties(new Number(num), { + isNaN: {value: function () { return isNaN(this) }}, + [_type]: {value: INTEGER}, + [_inspect]: {value: () => `[Integer: ${value}]`} + }) + } +} +function isInteger (obj) { + if (obj === null || typeof (obj) !== 'object') return false + return obj[_type] === INTEGER +} + +const FLOAT = Symbol('float') +function Float (value) { + /* istanbul ignore next */ + return Object.defineProperties(new Number(value), { + [_type]: {value: FLOAT}, + [_inspect]: {value: () => `[Float: ${value}]`} + }) +} +function isFloat (obj) { + if (obj === null || typeof (obj) !== 'object') return false + return obj[_type] === FLOAT +} + +function tomlType (value) { + const type = typeof value + if (type === 'object') { + /* istanbul ignore if */ + if (value === null) return 'null' + if (value instanceof Date) return 'datetime' + /* istanbul ignore else */ + if (_type in value) { + switch (value[_type]) { + case INLINE_TABLE: return 'inline-table' + case INLINE_LIST: return 'inline-list' + /* istanbul ignore next */ + case TABLE: return 'table' + /* istanbul ignore next */ + case LIST: return 'list' + case FLOAT: return 'float' + case INTEGER: return 'integer' + } + } + } + return type +} + +function makeParserClass (Parser) { + class TOMLParser extends Parser { + constructor () { + super() + this.ctx = this.obj = Table() + } + + /* MATCH HELPER */ + atEndOfWord () { + return this.char === CHAR_NUM || this.char === CTRL_I || this.char === CHAR_SP || this.atEndOfLine() + } + atEndOfLine () { + return this.char === Parser.END || this.char === CTRL_J || this.char === CTRL_M + } + + parseStart () { + if (this.char === Parser.END) { + return null + } else if (this.char === CHAR_LSQB) { + return this.call(this.parseTableOrList) + } else if (this.char === CHAR_NUM) { + return this.call(this.parseComment) + } else if (this.char === CTRL_J || this.char === CHAR_SP || this.char === CTRL_I || this.char === CTRL_M) { + return null + } else if (isAlphaNumQuoteHyphen(this.char)) { + return this.callNow(this.parseAssignStatement) + } else { + throw this.error(new TomlError(`Unknown character "${this.char}"`)) + } + } + + // HELPER, this strips any whitespace and comments to the end of the line + // then RETURNS. Last state in a production. + parseWhitespaceToEOL () { + if (this.char === CHAR_SP || this.char === CTRL_I || this.char === CTRL_M) { + return null + } else if (this.char === CHAR_NUM) { + return this.goto(this.parseComment) + } else if (this.char === Parser.END || this.char === CTRL_J) { + return this.return() + } else { + throw this.error(new TomlError('Unexpected character, expected only whitespace or comments till end of line')) + } + } + + /* ASSIGNMENT: key = value */ + parseAssignStatement () { + return this.callNow(this.parseAssign, this.recordAssignStatement) + } + recordAssignStatement (kv) { + let target = this.ctx + let finalKey = kv.key.pop() + for (let kw of kv.key) { + if (hasKey(target, kw) && !isTable(target[kw])) { + throw this.error(new TomlError("Can't redefine existing key")) + } + target = target[kw] = target[kw] || Table() + } + if (hasKey(target, finalKey)) { + throw this.error(new TomlError("Can't redefine existing key")) + } + target[_declared] = true + // unbox our numbers + if (isInteger(kv.value) || isFloat(kv.value)) { + target[finalKey] = kv.value.valueOf() + } else { + target[finalKey] = kv.value + } + return this.goto(this.parseWhitespaceToEOL) + } + + /* ASSSIGNMENT expression, key = value possibly inside an inline table */ + parseAssign () { + return this.callNow(this.parseKeyword, this.recordAssignKeyword) + } + recordAssignKeyword (key) { + if (this.state.resultTable) { + this.state.resultTable.push(key) + } else { + this.state.resultTable = [key] + } + return this.goto(this.parseAssignKeywordPreDot) + } + parseAssignKeywordPreDot () { + if (this.char === CHAR_PERIOD) { + return this.next(this.parseAssignKeywordPostDot) + } else if (this.char !== CHAR_SP && this.char !== CTRL_I) { + return this.goto(this.parseAssignEqual) + } + } + parseAssignKeywordPostDot () { + if (this.char !== CHAR_SP && this.char !== CTRL_I) { + return this.callNow(this.parseKeyword, this.recordAssignKeyword) + } + } + + parseAssignEqual () { + if (this.char === CHAR_EQUALS) { + return this.next(this.parseAssignPreValue) + } else { + throw this.error(new TomlError('Invalid character, expected "="')) + } + } + parseAssignPreValue () { + if (this.char === CHAR_SP || this.char === CTRL_I) { + return null + } else { + return this.callNow(this.parseValue, this.recordAssignValue) + } + } + recordAssignValue (value) { + return this.returnNow({key: this.state.resultTable, value: value}) + } + + /* COMMENTS: #...eol */ + parseComment () { + do { + if (this.char === Parser.END || this.char === CTRL_J) { + return this.return() + } else if (this.char === CHAR_DEL || (this.char <= CTRL_CHAR_BOUNDARY && this.char !== CTRL_I)) { + throw this.errorControlCharIn('comments') + } + } while (this.nextChar()) + } + + /* TABLES AND LISTS, [foo] and [[foo]] */ + parseTableOrList () { + if (this.char === CHAR_LSQB) { + this.next(this.parseList) + } else { + return this.goto(this.parseTable) + } + } + + /* TABLE [foo.bar.baz] */ + parseTable () { + this.ctx = this.obj + return this.goto(this.parseTableNext) + } + parseTableNext () { + if (this.char === CHAR_SP || this.char === CTRL_I) { + return null + } else { + return this.callNow(this.parseKeyword, this.parseTableMore) + } + } + parseTableMore (keyword) { + if (this.char === CHAR_SP || this.char === CTRL_I) { + return null + } else if (this.char === CHAR_RSQB) { + if (hasKey(this.ctx, keyword) && (!isTable(this.ctx[keyword]) || this.ctx[keyword][_declared])) { + throw this.error(new TomlError("Can't redefine existing key")) + } else { + this.ctx = this.ctx[keyword] = this.ctx[keyword] || Table() + this.ctx[_declared] = true + } + return this.next(this.parseWhitespaceToEOL) + } else if (this.char === CHAR_PERIOD) { + if (!hasKey(this.ctx, keyword)) { + this.ctx = this.ctx[keyword] = Table() + } else if (isTable(this.ctx[keyword])) { + this.ctx = this.ctx[keyword] + } else if (isList(this.ctx[keyword])) { + this.ctx = this.ctx[keyword][this.ctx[keyword].length - 1] + } else { + throw this.error(new TomlError("Can't redefine existing key")) + } + return this.next(this.parseTableNext) + } else { + throw this.error(new TomlError('Unexpected character, expected whitespace, . or ]')) + } + } + + /* LIST [[a.b.c]] */ + parseList () { + this.ctx = this.obj + return this.goto(this.parseListNext) + } + parseListNext () { + if (this.char === CHAR_SP || this.char === CTRL_I) { + return null + } else { + return this.callNow(this.parseKeyword, this.parseListMore) + } + } + parseListMore (keyword) { + if (this.char === CHAR_SP || this.char === CTRL_I) { + return null + } else if (this.char === CHAR_RSQB) { + if (!hasKey(this.ctx, keyword)) { + this.ctx[keyword] = List() + } + if (isInlineList(this.ctx[keyword])) { + throw this.error(new TomlError("Can't extend an inline array")) + } else if (isList(this.ctx[keyword])) { + const next = Table() + this.ctx[keyword].push(next) + this.ctx = next + } else { + throw this.error(new TomlError("Can't redefine an existing key")) + } + return this.next(this.parseListEnd) + } else if (this.char === CHAR_PERIOD) { + if (!hasKey(this.ctx, keyword)) { + this.ctx = this.ctx[keyword] = Table() + } else if (isInlineList(this.ctx[keyword])) { + throw this.error(new TomlError("Can't extend an inline array")) + } else if (isInlineTable(this.ctx[keyword])) { + throw this.error(new TomlError("Can't extend an inline table")) + } else if (isList(this.ctx[keyword])) { + this.ctx = this.ctx[keyword][this.ctx[keyword].length - 1] + } else if (isTable(this.ctx[keyword])) { + this.ctx = this.ctx[keyword] + } else { + throw this.error(new TomlError("Can't redefine an existing key")) + } + return this.next(this.parseListNext) + } else { + throw this.error(new TomlError('Unexpected character, expected whitespace, . or ]')) + } + } + parseListEnd (keyword) { + if (this.char === CHAR_RSQB) { + return this.next(this.parseWhitespaceToEOL) + } else { + throw this.error(new TomlError('Unexpected character, expected whitespace, . or ]')) + } + } + + /* VALUE string, number, boolean, inline list, inline object */ + parseValue () { + if (this.char === Parser.END) { + throw this.error(new TomlError('Key without value')) + } else if (this.char === CHAR_QUOT) { + return this.next(this.parseDoubleString) + } if (this.char === CHAR_APOS) { + return this.next(this.parseSingleString) + } else if (this.char === CHAR_HYPHEN || this.char === CHAR_PLUS) { + return this.goto(this.parseNumberSign) + } else if (this.char === CHAR_i) { + return this.next(this.parseInf) + } else if (this.char === CHAR_n) { + return this.next(this.parseNan) + } else if (isDigit(this.char)) { + return this.goto(this.parseNumberOrDateTime) + } else if (this.char === CHAR_t || this.char === CHAR_f) { + return this.goto(this.parseBoolean) + } else if (this.char === CHAR_LSQB) { + return this.call(this.parseInlineList, this.recordValue) + } else if (this.char === CHAR_LCUB) { + return this.call(this.parseInlineTable, this.recordValue) + } else { + throw this.error(new TomlError('Unexpected character, expecting string, number, datetime, boolean, inline array or inline table')) + } + } + recordValue (value) { + return this.returnNow(value) + } + + parseInf () { + if (this.char === CHAR_n) { + return this.next(this.parseInf2) + } else { + throw this.error(new TomlError('Unexpected character, expected "inf", "+inf" or "-inf"')) + } + } + parseInf2 () { + if (this.char === CHAR_f) { + if (this.state.buf === '-') { + return this.return(-Infinity) + } else { + return this.return(Infinity) + } + } else { + throw this.error(new TomlError('Unexpected character, expected "inf", "+inf" or "-inf"')) + } + } + + parseNan () { + if (this.char === CHAR_a) { + return this.next(this.parseNan2) + } else { + throw this.error(new TomlError('Unexpected character, expected "nan"')) + } + } + parseNan2 () { + if (this.char === CHAR_n) { + return this.return(NaN) + } else { + throw this.error(new TomlError('Unexpected character, expected "nan"')) + } + } + + /* KEYS, barewords or basic, literal, or dotted */ + parseKeyword () { + if (this.char === CHAR_QUOT) { + return this.next(this.parseBasicString) + } else if (this.char === CHAR_APOS) { + return this.next(this.parseLiteralString) + } else { + return this.goto(this.parseBareKey) + } + } + + /* KEYS: barewords */ + parseBareKey () { + do { + if (this.char === Parser.END) { + throw this.error(new TomlError('Key ended without value')) + } else if (isAlphaNumHyphen(this.char)) { + this.consume() + } else if (this.state.buf.length === 0) { + throw this.error(new TomlError('Empty bare keys are not allowed')) + } else { + return this.returnNow() + } + } while (this.nextChar()) + } + + /* STRINGS, single quoted (literal) */ + parseSingleString () { + if (this.char === CHAR_APOS) { + return this.next(this.parseLiteralMultiStringMaybe) + } else { + return this.goto(this.parseLiteralString) + } + } + parseLiteralString () { + do { + if (this.char === CHAR_APOS) { + return this.return() + } else if (this.atEndOfLine()) { + throw this.error(new TomlError('Unterminated string')) + } else if (this.char === CHAR_DEL || (this.char <= CTRL_CHAR_BOUNDARY && this.char !== CTRL_I)) { + throw this.errorControlCharIn('strings') + } else { + this.consume() + } + } while (this.nextChar()) + } + parseLiteralMultiStringMaybe () { + if (this.char === CHAR_APOS) { + return this.next(this.parseLiteralMultiString) + } else { + return this.returnNow() + } + } + parseLiteralMultiString () { + if (this.char === CTRL_M) { + return null + } else if (this.char === CTRL_J) { + return this.next(this.parseLiteralMultiStringContent) + } else { + return this.goto(this.parseLiteralMultiStringContent) + } + } + parseLiteralMultiStringContent () { + do { + if (this.char === CHAR_APOS) { + return this.next(this.parseLiteralMultiEnd) + } else if (this.char === Parser.END) { + throw this.error(new TomlError('Unterminated multi-line string')) + } else if (this.char === CHAR_DEL || (this.char <= CTRL_CHAR_BOUNDARY && this.char !== CTRL_I && this.char !== CTRL_J && this.char !== CTRL_M)) { + throw this.errorControlCharIn('strings') + } else { + this.consume() + } + } while (this.nextChar()) + } + parseLiteralMultiEnd () { + if (this.char === CHAR_APOS) { + return this.next(this.parseLiteralMultiEnd2) + } else { + this.state.buf += "'" + return this.goto(this.parseLiteralMultiStringContent) + } + } + parseLiteralMultiEnd2 () { + if (this.char === CHAR_APOS) { + return this.next(this.parseLiteralMultiEnd3) + } else { + this.state.buf += "''" + return this.goto(this.parseLiteralMultiStringContent) + } + } + parseLiteralMultiEnd3 () { + if (this.char === CHAR_APOS) { + this.state.buf += "'" + return this.next(this.parseLiteralMultiEnd4) + } else { + return this.returnNow() + } + } + parseLiteralMultiEnd4 () { + if (this.char === CHAR_APOS) { + this.state.buf += "'" + return this.return() + } else { + return this.returnNow() + } + } + + /* STRINGS double quoted */ + parseDoubleString () { + if (this.char === CHAR_QUOT) { + return this.next(this.parseMultiStringMaybe) + } else { + return this.goto(this.parseBasicString) + } + } + parseBasicString () { + do { + if (this.char === CHAR_BSOL) { + return this.call(this.parseEscape, this.recordEscapeReplacement) + } else if (this.char === CHAR_QUOT) { + return this.return() + } else if (this.atEndOfLine()) { + throw this.error(new TomlError('Unterminated string')) + } else if (this.char === CHAR_DEL || (this.char <= CTRL_CHAR_BOUNDARY && this.char !== CTRL_I)) { + throw this.errorControlCharIn('strings') + } else { + this.consume() + } + } while (this.nextChar()) + } + recordEscapeReplacement (replacement) { + this.state.buf += replacement + return this.goto(this.parseBasicString) + } + parseMultiStringMaybe () { + if (this.char === CHAR_QUOT) { + return this.next(this.parseMultiString) + } else { + return this.returnNow() + } + } + parseMultiString () { + if (this.char === CTRL_M) { + return null + } else if (this.char === CTRL_J) { + return this.next(this.parseMultiStringContent) + } else { + return this.goto(this.parseMultiStringContent) + } + } + parseMultiStringContent () { + do { + if (this.char === CHAR_BSOL) { + return this.call(this.parseMultiEscape, this.recordMultiEscapeReplacement) + } else if (this.char === CHAR_QUOT) { + return this.next(this.parseMultiEnd) + } else if (this.char === Parser.END) { + throw this.error(new TomlError('Unterminated multi-line string')) + } else if (this.char === CHAR_DEL || (this.char <= CTRL_CHAR_BOUNDARY && this.char !== CTRL_I && this.char !== CTRL_J && this.char !== CTRL_M)) { + throw this.errorControlCharIn('strings') + } else { + this.consume() + } + } while (this.nextChar()) + } + errorControlCharIn (type) { + let displayCode = '\\u00' + if (this.char < 16) { + displayCode += '0' + } + displayCode += this.char.toString(16) + + return this.error(new TomlError(`Control characters (codes < 0x1f and 0x7f) are not allowed in ${type}, use ${displayCode} instead`)) + } + recordMultiEscapeReplacement (replacement) { + this.state.buf += replacement + return this.goto(this.parseMultiStringContent) + } + parseMultiEnd () { + if (this.char === CHAR_QUOT) { + return this.next(this.parseMultiEnd2) + } else { + this.state.buf += '"' + return this.goto(this.parseMultiStringContent) + } + } + parseMultiEnd2 () { + if (this.char === CHAR_QUOT) { + return this.next(this.parseMultiEnd3) + } else { + this.state.buf += '""' + return this.goto(this.parseMultiStringContent) + } + } + parseMultiEnd3 () { + if (this.char === CHAR_QUOT) { + this.state.buf += '"' + return this.next(this.parseMultiEnd4) + } else { + return this.returnNow() + } + } + parseMultiEnd4 () { + if (this.char === CHAR_QUOT) { + this.state.buf += '"' + return this.return() + } else { + return this.returnNow() + } + } + parseMultiEscape () { + if (this.char === CTRL_M || this.char === CTRL_J) { + return this.next(this.parseMultiTrim) + } else if (this.char === CHAR_SP || this.char === CTRL_I) { + return this.next(this.parsePreMultiTrim) + } else { + return this.goto(this.parseEscape) + } + } + parsePreMultiTrim () { + if (this.char === CHAR_SP || this.char === CTRL_I) { + return null + } else if (this.char === CTRL_M || this.char === CTRL_J) { + return this.next(this.parseMultiTrim) + } else { + throw this.error(new TomlError("Can't escape whitespace")) + } + } + parseMultiTrim () { + // explicitly whitespace here, END should follow the same path as chars + if (this.char === CTRL_J || this.char === CHAR_SP || this.char === CTRL_I || this.char === CTRL_M) { + return null + } else { + return this.returnNow() + } + } + parseEscape () { + if (this.char in escapes) { + return this.return(escapes[this.char]) + } else if (this.char === CHAR_u) { + return this.call(this.parseSmallUnicode, this.parseUnicodeReturn) + } else if (this.char === CHAR_U) { + return this.call(this.parseLargeUnicode, this.parseUnicodeReturn) + } else { + throw this.error(new TomlError('Unknown escape character: ' + this.char)) + } + } + parseUnicodeReturn (char) { + try { + const codePoint = parseInt(char, 16) + if (codePoint >= SURROGATE_FIRST && codePoint <= SURROGATE_LAST) { + throw this.error(new TomlError('Invalid unicode, character in range 0xD800 - 0xDFFF is reserved')) + } + return this.returnNow(String.fromCodePoint(codePoint)) + } catch (err) { + throw this.error(TomlError.wrap(err)) + } + } + parseSmallUnicode () { + if (!isHexit(this.char)) { + throw this.error(new TomlError('Invalid character in unicode sequence, expected hex')) + } else { + this.consume() + if (this.state.buf.length >= 4) return this.return() + } + } + parseLargeUnicode () { + if (!isHexit(this.char)) { + throw this.error(new TomlError('Invalid character in unicode sequence, expected hex')) + } else { + this.consume() + if (this.state.buf.length >= 8) return this.return() + } + } + + /* NUMBERS */ + parseNumberSign () { + this.consume() + return this.next(this.parseMaybeSignedInfOrNan) + } + parseMaybeSignedInfOrNan () { + if (this.char === CHAR_i) { + return this.next(this.parseInf) + } else if (this.char === CHAR_n) { + return this.next(this.parseNan) + } else { + return this.callNow(this.parseNoUnder, this.parseNumberIntegerStart) + } + } + parseNumberIntegerStart () { + if (this.char === CHAR_0) { + this.consume() + return this.next(this.parseNumberIntegerExponentOrDecimal) + } else { + return this.goto(this.parseNumberInteger) + } + } + parseNumberIntegerExponentOrDecimal () { + if (this.char === CHAR_PERIOD) { + this.consume() + return this.call(this.parseNoUnder, this.parseNumberFloat) + } else if (this.char === CHAR_E || this.char === CHAR_e) { + this.consume() + return this.next(this.parseNumberExponentSign) + } else { + return this.returnNow(Integer(this.state.buf)) + } + } + parseNumberInteger () { + if (isDigit(this.char)) { + this.consume() + } else if (this.char === CHAR_LOWBAR) { + return this.call(this.parseNoUnder) + } else if (this.char === CHAR_E || this.char === CHAR_e) { + this.consume() + return this.next(this.parseNumberExponentSign) + } else if (this.char === CHAR_PERIOD) { + this.consume() + return this.call(this.parseNoUnder, this.parseNumberFloat) + } else { + const result = Integer(this.state.buf) + /* istanbul ignore if */ + if (result.isNaN()) { + throw this.error(new TomlError('Invalid number')) + } else { + return this.returnNow(result) + } + } + } + parseNoUnder () { + if (this.char === CHAR_LOWBAR || this.char === CHAR_PERIOD || this.char === CHAR_E || this.char === CHAR_e) { + throw this.error(new TomlError('Unexpected character, expected digit')) + } else if (this.atEndOfWord()) { + throw this.error(new TomlError('Incomplete number')) + } + return this.returnNow() + } + parseNoUnderHexOctBinLiteral () { + if (this.char === CHAR_LOWBAR || this.char === CHAR_PERIOD) { + throw this.error(new TomlError('Unexpected character, expected digit')) + } else if (this.atEndOfWord()) { + throw this.error(new TomlError('Incomplete number')) + } + return this.returnNow() + } + parseNumberFloat () { + if (this.char === CHAR_LOWBAR) { + return this.call(this.parseNoUnder, this.parseNumberFloat) + } else if (isDigit(this.char)) { + this.consume() + } else if (this.char === CHAR_E || this.char === CHAR_e) { + this.consume() + return this.next(this.parseNumberExponentSign) + } else { + return this.returnNow(Float(this.state.buf)) + } + } + parseNumberExponentSign () { + if (isDigit(this.char)) { + return this.goto(this.parseNumberExponent) + } else if (this.char === CHAR_HYPHEN || this.char === CHAR_PLUS) { + this.consume() + this.call(this.parseNoUnder, this.parseNumberExponent) + } else { + throw this.error(new TomlError('Unexpected character, expected -, + or digit')) + } + } + parseNumberExponent () { + if (isDigit(this.char)) { + this.consume() + } else if (this.char === CHAR_LOWBAR) { + return this.call(this.parseNoUnder) + } else { + return this.returnNow(Float(this.state.buf)) + } + } + + /* NUMBERS or DATETIMES */ + parseNumberOrDateTime () { + if (this.char === CHAR_0) { + this.consume() + return this.next(this.parseNumberBaseOrDateTime) + } else { + return this.goto(this.parseNumberOrDateTimeOnly) + } + } + parseNumberOrDateTimeOnly () { + // note, if two zeros are in a row then it MUST be a date + if (this.char === CHAR_LOWBAR) { + return this.call(this.parseNoUnder, this.parseNumberInteger) + } else if (isDigit(this.char)) { + this.consume() + if (this.state.buf.length > 4) this.next(this.parseNumberInteger) + } else if (this.char === CHAR_E || this.char === CHAR_e) { + this.consume() + return this.next(this.parseNumberExponentSign) + } else if (this.char === CHAR_PERIOD) { + this.consume() + return this.call(this.parseNoUnder, this.parseNumberFloat) + } else if (this.char === CHAR_HYPHEN) { + return this.goto(this.parseDateTime) + } else if (this.char === CHAR_COLON) { + return this.goto(this.parseOnlyTimeHour) + } else { + return this.returnNow(Integer(this.state.buf)) + } + } + parseDateTimeOnly () { + if (this.state.buf.length < 4) { + if (isDigit(this.char)) { + return this.consume() + } else if (this.char === CHAR_COLON) { + return this.goto(this.parseOnlyTimeHour) + } else { + throw this.error(new TomlError('Expected digit while parsing year part of a date')) + } + } else { + if (this.char === CHAR_HYPHEN) { + return this.goto(this.parseDateTime) + } else { + throw this.error(new TomlError('Expected hyphen (-) while parsing year part of date')) + } + } + } + parseNumberBaseOrDateTime () { + if (this.char === CHAR_b) { + this.consume() + return this.call(this.parseNoUnderHexOctBinLiteral, this.parseIntegerBin) + } else if (this.char === CHAR_o) { + this.consume() + return this.call(this.parseNoUnderHexOctBinLiteral, this.parseIntegerOct) + } else if (this.char === CHAR_x) { + this.consume() + return this.call(this.parseNoUnderHexOctBinLiteral, this.parseIntegerHex) + } else if (this.char === CHAR_PERIOD) { + return this.goto(this.parseNumberInteger) + } else if (isDigit(this.char)) { + return this.goto(this.parseDateTimeOnly) + } else { + return this.returnNow(Integer(this.state.buf)) + } + } + parseIntegerHex () { + if (isHexit(this.char)) { + this.consume() + } else if (this.char === CHAR_LOWBAR) { + return this.call(this.parseNoUnderHexOctBinLiteral) + } else { + const result = Integer(this.state.buf) + /* istanbul ignore if */ + if (result.isNaN()) { + throw this.error(new TomlError('Invalid number')) + } else { + return this.returnNow(result) + } + } + } + parseIntegerOct () { + if (isOctit(this.char)) { + this.consume() + } else if (this.char === CHAR_LOWBAR) { + return this.call(this.parseNoUnderHexOctBinLiteral) + } else { + const result = Integer(this.state.buf) + /* istanbul ignore if */ + if (result.isNaN()) { + throw this.error(new TomlError('Invalid number')) + } else { + return this.returnNow(result) + } + } + } + parseIntegerBin () { + if (isBit(this.char)) { + this.consume() + } else if (this.char === CHAR_LOWBAR) { + return this.call(this.parseNoUnderHexOctBinLiteral) + } else { + const result = Integer(this.state.buf) + /* istanbul ignore if */ + if (result.isNaN()) { + throw this.error(new TomlError('Invalid number')) + } else { + return this.returnNow(result) + } + } + } + + /* DATETIME */ + parseDateTime () { + // we enter here having just consumed the year and about to consume the hyphen + if (this.state.buf.length < 4) { + throw this.error(new TomlError('Years less than 1000 must be zero padded to four characters')) + } + this.state.result = this.state.buf + this.state.buf = '' + return this.next(this.parseDateMonth) + } + parseDateMonth () { + if (this.char === CHAR_HYPHEN) { + if (this.state.buf.length < 2) { + throw this.error(new TomlError('Months less than 10 must be zero padded to two characters')) + } + this.state.result += '-' + this.state.buf + this.state.buf = '' + return this.next(this.parseDateDay) + } else if (isDigit(this.char)) { + this.consume() + } else { + throw this.error(new TomlError('Incomplete datetime')) + } + } + parseDateDay () { + if (this.char === CHAR_T || this.char === CHAR_SP) { + if (this.state.buf.length < 2) { + throw this.error(new TomlError('Days less than 10 must be zero padded to two characters')) + } + this.state.result += '-' + this.state.buf + this.state.buf = '' + return this.next(this.parseStartTimeHour) + } else if (this.atEndOfWord()) { + return this.returnNow(createDate(this.state.result + '-' + this.state.buf)) + } else if (isDigit(this.char)) { + this.consume() + } else { + throw this.error(new TomlError('Incomplete datetime')) + } + } + parseStartTimeHour () { + if (this.atEndOfWord()) { + return this.returnNow(createDate(this.state.result)) + } else { + return this.goto(this.parseTimeHour) + } + } + parseTimeHour () { + if (this.char === CHAR_COLON) { + if (this.state.buf.length < 2) { + throw this.error(new TomlError('Hours less than 10 must be zero padded to two characters')) + } + this.state.result += 'T' + this.state.buf + this.state.buf = '' + return this.next(this.parseTimeMin) + } else if (isDigit(this.char)) { + this.consume() + } else { + throw this.error(new TomlError('Incomplete datetime')) + } + } + parseTimeMin () { + if (this.state.buf.length < 2 && isDigit(this.char)) { + this.consume() + } else if (this.state.buf.length === 2 && this.char === CHAR_COLON) { + this.state.result += ':' + this.state.buf + this.state.buf = '' + return this.next(this.parseTimeSec) + } else { + throw this.error(new TomlError('Incomplete datetime')) + } + } + parseTimeSec () { + if (isDigit(this.char)) { + this.consume() + if (this.state.buf.length === 2) { + this.state.result += ':' + this.state.buf + this.state.buf = '' + return this.next(this.parseTimeZoneOrFraction) + } + } else { + throw this.error(new TomlError('Incomplete datetime')) + } + } + + parseOnlyTimeHour () { + /* istanbul ignore else */ + if (this.char === CHAR_COLON) { + if (this.state.buf.length < 2) { + throw this.error(new TomlError('Hours less than 10 must be zero padded to two characters')) + } + this.state.result = this.state.buf + this.state.buf = '' + return this.next(this.parseOnlyTimeMin) + } else { + throw this.error(new TomlError('Incomplete time')) + } + } + parseOnlyTimeMin () { + if (this.state.buf.length < 2 && isDigit(this.char)) { + this.consume() + } else if (this.state.buf.length === 2 && this.char === CHAR_COLON) { + this.state.result += ':' + this.state.buf + this.state.buf = '' + return this.next(this.parseOnlyTimeSec) + } else { + throw this.error(new TomlError('Incomplete time')) + } + } + parseOnlyTimeSec () { + if (isDigit(this.char)) { + this.consume() + if (this.state.buf.length === 2) { + return this.next(this.parseOnlyTimeFractionMaybe) + } + } else { + throw this.error(new TomlError('Incomplete time')) + } + } + parseOnlyTimeFractionMaybe () { + this.state.result += ':' + this.state.buf + if (this.char === CHAR_PERIOD) { + this.state.buf = '' + this.next(this.parseOnlyTimeFraction) + } else { + return this.return(createTime(this.state.result)) + } + } + parseOnlyTimeFraction () { + if (isDigit(this.char)) { + this.consume() + } else if (this.atEndOfWord()) { + if (this.state.buf.length === 0) throw this.error(new TomlError('Expected digit in milliseconds')) + return this.returnNow(createTime(this.state.result + '.' + this.state.buf)) + } else { + throw this.error(new TomlError('Unexpected character in datetime, expected period (.), minus (-), plus (+) or Z')) + } + } + + parseTimeZoneOrFraction () { + if (this.char === CHAR_PERIOD) { + this.consume() + this.next(this.parseDateTimeFraction) + } else if (this.char === CHAR_HYPHEN || this.char === CHAR_PLUS) { + this.consume() + this.next(this.parseTimeZoneHour) + } else if (this.char === CHAR_Z) { + this.consume() + return this.return(createDateTime(this.state.result + this.state.buf)) + } else if (this.atEndOfWord()) { + return this.returnNow(createDateTimeFloat(this.state.result + this.state.buf)) + } else { + throw this.error(new TomlError('Unexpected character in datetime, expected period (.), minus (-), plus (+) or Z')) + } + } + parseDateTimeFraction () { + if (isDigit(this.char)) { + this.consume() + } else if (this.state.buf.length === 1) { + throw this.error(new TomlError('Expected digit in milliseconds')) + } else if (this.char === CHAR_HYPHEN || this.char === CHAR_PLUS) { + this.consume() + this.next(this.parseTimeZoneHour) + } else if (this.char === CHAR_Z) { + this.consume() + return this.return(createDateTime(this.state.result + this.state.buf)) + } else if (this.atEndOfWord()) { + return this.returnNow(createDateTimeFloat(this.state.result + this.state.buf)) + } else { + throw this.error(new TomlError('Unexpected character in datetime, expected period (.), minus (-), plus (+) or Z')) + } + } + parseTimeZoneHour () { + if (isDigit(this.char)) { + this.consume() + // FIXME: No more regexps + if (/\d\d$/.test(this.state.buf)) return this.next(this.parseTimeZoneSep) + } else { + throw this.error(new TomlError('Unexpected character in datetime, expected digit')) + } + } + parseTimeZoneSep () { + if (this.char === CHAR_COLON) { + this.consume() + this.next(this.parseTimeZoneMin) + } else { + throw this.error(new TomlError('Unexpected character in datetime, expected colon')) + } + } + parseTimeZoneMin () { + if (isDigit(this.char)) { + this.consume() + if (/\d\d$/.test(this.state.buf)) return this.return(createDateTime(this.state.result + this.state.buf)) + } else { + throw this.error(new TomlError('Unexpected character in datetime, expected digit')) + } + } + + /* BOOLEAN */ + parseBoolean () { + /* istanbul ignore else */ + if (this.char === CHAR_t) { + this.consume() + return this.next(this.parseTrue_r) + } else if (this.char === CHAR_f) { + this.consume() + return this.next(this.parseFalse_a) + } + } + parseTrue_r () { + if (this.char === CHAR_r) { + this.consume() + return this.next(this.parseTrue_u) + } else { + throw this.error(new TomlError('Invalid boolean, expected true or false')) + } + } + parseTrue_u () { + if (this.char === CHAR_u) { + this.consume() + return this.next(this.parseTrue_e) + } else { + throw this.error(new TomlError('Invalid boolean, expected true or false')) + } + } + parseTrue_e () { + if (this.char === CHAR_e) { + return this.return(true) + } else { + throw this.error(new TomlError('Invalid boolean, expected true or false')) + } + } + + parseFalse_a () { + if (this.char === CHAR_a) { + this.consume() + return this.next(this.parseFalse_l) + } else { + throw this.error(new TomlError('Invalid boolean, expected true or false')) + } + } + + parseFalse_l () { + if (this.char === CHAR_l) { + this.consume() + return this.next(this.parseFalse_s) + } else { + throw this.error(new TomlError('Invalid boolean, expected true or false')) + } + } + + parseFalse_s () { + if (this.char === CHAR_s) { + this.consume() + return this.next(this.parseFalse_e) + } else { + throw this.error(new TomlError('Invalid boolean, expected true or false')) + } + } + + parseFalse_e () { + if (this.char === CHAR_e) { + return this.return(false) + } else { + throw this.error(new TomlError('Invalid boolean, expected true or false')) + } + } + + /* INLINE LISTS */ + parseInlineList () { + if (this.char === CHAR_SP || this.char === CTRL_I || this.char === CTRL_M || this.char === CTRL_J) { + return null + } else if (this.char === Parser.END) { + throw this.error(new TomlError('Unterminated inline array')) + } else if (this.char === CHAR_NUM) { + return this.call(this.parseComment) + } else if (this.char === CHAR_RSQB) { + return this.return(this.state.resultArr || InlineList()) + } else { + return this.callNow(this.parseValue, this.recordInlineListValue) + } + } + recordInlineListValue (value) { + if (!this.state.resultArr) { + this.state.resultArr = InlineList(tomlType(value)) + } + if (isFloat(value) || isInteger(value)) { + // unbox now that we've verified they're ok + this.state.resultArr.push(value.valueOf()) + } else { + this.state.resultArr.push(value) + } + return this.goto(this.parseInlineListNext) + } + parseInlineListNext () { + if (this.char === CHAR_SP || this.char === CTRL_I || this.char === CTRL_M || this.char === CTRL_J) { + return null + } else if (this.char === CHAR_NUM) { + return this.call(this.parseComment) + } else if (this.char === CHAR_COMMA) { + return this.next(this.parseInlineList) + } else if (this.char === CHAR_RSQB) { + return this.goto(this.parseInlineList) + } else { + throw this.error(new TomlError('Invalid character, expected whitespace, comma (,) or close bracket (])')) + } + } + + /* INLINE TABLE */ + parseInlineTable () { + if (this.char === CHAR_SP || this.char === CTRL_I) { + return null + } else if (this.char === Parser.END || this.char === CHAR_NUM || this.char === CTRL_J || this.char === CTRL_M) { + throw this.error(new TomlError('Unterminated inline array')) + } else if (this.char === CHAR_RCUB) { + return this.return(this.state.resultTable || InlineTable()) + } else { + if (!this.state.resultTable) this.state.resultTable = InlineTable() + return this.callNow(this.parseAssign, this.recordInlineTableValue) + } + } + recordInlineTableValue (kv) { + let target = this.state.resultTable + let finalKey = kv.key.pop() + for (let kw of kv.key) { + if (hasKey(target, kw) && (!isTable(target[kw]) || target[kw][_declared])) { + throw this.error(new TomlError("Can't redefine existing key")) + } + target = target[kw] = target[kw] || Table() + } + if (hasKey(target, finalKey)) { + throw this.error(new TomlError("Can't redefine existing key")) + } + if (isInteger(kv.value) || isFloat(kv.value)) { + target[finalKey] = kv.value.valueOf() + } else { + target[finalKey] = kv.value + } + return this.goto(this.parseInlineTableNext) + } + parseInlineTableNext () { + if (this.char === CHAR_SP || this.char === CTRL_I) { + return null + } else if (this.char === Parser.END || this.char === CHAR_NUM || this.char === CTRL_J || this.char === CTRL_M) { + throw this.error(new TomlError('Unterminated inline array')) + } else if (this.char === CHAR_COMMA) { + return this.next(this.parseInlineTablePostComma) + } else if (this.char === CHAR_RCUB) { + return this.goto(this.parseInlineTable) + } else { + throw this.error(new TomlError('Invalid character, expected whitespace, comma (,) or close bracket (])')) + } + } + parseInlineTablePostComma () { + if (this.char === CHAR_SP || this.char === CTRL_I) { + return null + } else if (this.char === Parser.END || this.char === CHAR_NUM || this.char === CTRL_J || this.char === CTRL_M) { + throw this.error(new TomlError('Unterminated inline array')) + } else if (this.char === CHAR_COMMA) { + throw this.error(new TomlError('Empty elements in inline tables are not permitted')) + } else if (this.char === CHAR_RCUB) { + throw this.error(new TomlError('Trailing commas in inline tables are not permitted')) + } else { + return this.goto(this.parseInlineTable) + } + } + } + return TOMLParser +} + +}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./error":2,"./parser":8,"./utils/create-date":11,"./utils/create-datetime":13,"./utils/create-datetime-float":12,"./utils/create-time":14}],11:[function(require,module,exports){ +(function (global){(function (){ +'use strict' +const f = require('./format-num.js') +const DateTime = global.Date + +class Date extends DateTime { + constructor (value) { + super(value) + this.isDate = true + } + toISOString () { + return `${this.getUTCFullYear()}-${f(2, this.getUTCMonth() + 1)}-${f(2, this.getUTCDate())}` + } +} + +module.exports = value => { + const date = new Date(value) + /* istanbul ignore if */ + if (isNaN(date)) { + throw new TypeError('Invalid Datetime') + } else { + return date + } +} + +}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./format-num.js":15}],12:[function(require,module,exports){ +'use strict' +const f = require('./format-num.js') + +class FloatingDateTime extends Date { + constructor (value) { + super(value + 'Z') + this.isFloating = true + } + toISOString () { + const date = `${this.getUTCFullYear()}-${f(2, this.getUTCMonth() + 1)}-${f(2, this.getUTCDate())}` + const time = `${f(2, this.getUTCHours())}:${f(2, this.getUTCMinutes())}:${f(2, this.getUTCSeconds())}.${f(3, this.getUTCMilliseconds())}` + return `${date}T${time}` + } +} + +module.exports = value => { + const date = new FloatingDateTime(value) + /* istanbul ignore if */ + if (isNaN(date)) { + throw new TypeError('Invalid Datetime') + } else { + return date + } +} + +},{"./format-num.js":15}],13:[function(require,module,exports){ +'use strict' +module.exports = value => { + const date = new Date(value) + /* istanbul ignore if */ + if (isNaN(date)) { + throw new TypeError('Invalid Datetime') + } else { + return date + } +} + +},{}],14:[function(require,module,exports){ +'use strict' +const f = require('./format-num.js') + +class Time extends Date { + constructor (value) { + super(`0000-01-01T${value}Z`) + this.isTime = true + } + toISOString () { + return `${f(2, this.getUTCHours())}:${f(2, this.getUTCMinutes())}:${f(2, this.getUTCSeconds())}.${f(3, this.getUTCMilliseconds())}` + } +} + +module.exports = value => { + const date = new Time(value) + /* istanbul ignore if */ + if (isNaN(date)) { + throw new TypeError('Invalid Datetime') + } else { + return date + } +} + +},{"./format-num.js":15}],15:[function(require,module,exports){ +'use strict' +module.exports = (d, num) => { + num = String(num) + while (num.length < d) num = '0' + num + return num +} + +},{}],16:[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('') +} + +},{}],17:[function(require,module,exports){ + +},{}],18:[function(require,module,exports){ +(function (Buffer){(function (){ +/*! + * The buffer module from node.js, for the browser. + * + * @author Feross Aboukhadijeh + * @license MIT + */ +/* eslint-disable no-proto */ + +'use strict' + +var base64 = require('base64-js') +var ieee754 = require('ieee754') + +exports.Buffer = Buffer +exports.SlowBuffer = SlowBuffer +exports.INSPECT_MAX_BYTES = 50 + +var K_MAX_LENGTH = 0x7fffffff +exports.kMaxLength = K_MAX_LENGTH + +/** + * If `Buffer.TYPED_ARRAY_SUPPORT`: + * === true Use Uint8Array implementation (fastest) + * === false Print warning and recommend using `buffer` v4.x which has an Object + * implementation (most compatible, even IE6) + * + * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, + * Opera 11.6+, iOS 4.2+. + * + * We report that the browser does not support typed arrays if the are not subclassable + * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array` + * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support + * for __proto__ and has a buggy typed array implementation. + */ +Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport() + +if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' && + typeof console.error === 'function') { + console.error( + 'This browser lacks typed array (Uint8Array) support which is required by ' + + '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.' + ) +} + +function typedArraySupport () { + // Can typed array instances can be augmented? + try { + var arr = new Uint8Array(1) + arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () { return 42 } } + return arr.foo() === 42 + } catch (e) { + return false + } +} + +Object.defineProperty(Buffer.prototype, 'parent', { + 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.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":16,"buffer":18,"ieee754":20}],19:[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); + } +} + +},{}],20:[function(require,module,exports){ +/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh */ +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 +} + +},{}],21:[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 + } + } +} + +},{}],22:[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; }; + +},{}],23:[function(require,module,exports){ +/*! safe-buffer. MIT License. Feross Aboukhadijeh */ +/* 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":18}],24:[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":19,"inherits":21,"readable-stream/lib/_stream_duplex.js":26,"readable-stream/lib/_stream_passthrough.js":27,"readable-stream/lib/_stream_readable.js":28,"readable-stream/lib/_stream_transform.js":29,"readable-stream/lib/_stream_writable.js":30,"readable-stream/lib/internal/streams/end-of-stream.js":34,"readable-stream/lib/internal/streams/pipeline.js":36}],25:[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; + +},{}],26:[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'; + +/**/ +var objectKeys = Object.keys || function (obj) { + var keys = []; + for (var key in obj) keys.push(key); + return keys; +}; +/**/ + +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":28,"./_stream_writable":30,"_process":22,"inherits":21}],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. + +// 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":29,"inherits":21}],28:[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; + +/**/ +var Duplex; +/**/ + +Readable.ReadableState = ReadableState; + +/**/ +var EE = require('events').EventEmitter; +var EElistenerCount = function EElistenerCount(emitter, type) { + return emitter.listeners(type).length; +}; +/**/ + +/**/ +var Stream = require('./internal/streams/stream'); +/**/ + +var Buffer = require('buffer').Buffer; +var OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {}; +function _uint8ArrayToBuffer(chunk) { + return Buffer.from(chunk); +} +function _isUint8Array(obj) { + return Buffer.isBuffer(obj) || obj instanceof OurUint8Array; +} + +/**/ +var debugUtil = require('util'); +var debug; +if (debugUtil && debugUtil.debuglog) { + debug = debugUtil.debuglog('stream'); +} else { + debug = function debug() {}; +} +/**/ + +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":25,"./_stream_duplex":26,"./internal/streams/async_iterator":31,"./internal/streams/buffer_list":32,"./internal/streams/destroy":33,"./internal/streams/from":35,"./internal/streams/state":37,"./internal/streams/stream":38,"_process":22,"buffer":18,"events":19,"inherits":21,"string_decoder/":39,"util":17}],29:[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":25,"./_stream_duplex":26,"inherits":21}],30:[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; + +/* */ +function WriteReq(chunk, encoding, cb) { + this.chunk = chunk; + this.encoding = encoding; + this.callback = cb; + this.next = null; +} + +// It seems a linked list but it is not +// there will be only 2 of these for each stream +function CorkedRequest(state) { + var _this = this; + this.next = null; + this.entry = null; + this.finish = function () { + onCorkedFinish(_this, state); + }; +} +/* */ + +/**/ +var Duplex; +/**/ + +Writable.WritableState = WritableState; + +/**/ +var internalUtil = { + deprecate: require('util-deprecate') +}; +/**/ + +/**/ +var Stream = require('./internal/streams/stream'); +/**/ + +var Buffer = require('buffer').Buffer; +var OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).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":25,"./_stream_duplex":26,"./internal/streams/destroy":33,"./internal/streams/state":37,"./internal/streams/stream":38,"_process":22,"buffer":18,"inherits":21,"util-deprecate":41}],31:[function(require,module,exports){ +(function (process){(function (){ +'use strict'; + +var _Object$setPrototypeO; +function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } +function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); } +function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); } +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":34,"_process":22}],32:[function(require,module,exports){ +'use strict'; + +function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); 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 = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; } +function _defineProperty(obj, key, value) { key = _toPropertyKey(key); 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, _toPropertyKey(descriptor.key), descriptor); } } +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; } +function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); } +function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); } +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(_objectSpread({}, options), {}, { + // Only inspect one level. + depth: 0, + // It should not recurse. + customInspect: false + })); + } + }]); + return BufferList; +}(); +},{"buffer":18,"util":17}],33:[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":22}],34:[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":25}],35:[function(require,module,exports){ +module.exports = function () { + throw new Error('Readable.from is not available in the browser') +}; + +},{}],36:[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":25,"./end-of-stream":34}],37:[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":25}],38:[function(require,module,exports){ +module.exports = require('events').EventEmitter; + +},{"events":19}],39:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +'use strict'; + +/**/ + +var Buffer = require('safe-buffer').Buffer; +/**/ + +var isEncoding = Buffer.isEncoding || function (encoding) { + encoding = '' + encoding; + switch (encoding && encoding.toLowerCase()) { + case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw': + return true; + default: + return false; + } +}; + +function _normalizeEncoding(enc) { + if (!enc) return 'utf8'; + var retried; + while (true) { + switch (enc) { + case 'utf8': + case 'utf-8': + return 'utf8'; + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return 'utf16le'; + case 'latin1': + case 'binary': + return 'latin1'; + case 'base64': + case 'ascii': + case 'hex': + return enc; + default: + if (retried) return; // undefined + enc = ('' + enc).toLowerCase(); + retried = true; + } + } +}; + +// Do not cache `Buffer.isEncoding` when checking encoding names as some +// modules monkey-patch it to support additional encodings +function normalizeEncoding(enc) { + var nenc = _normalizeEncoding(enc); + if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc); + return nenc || enc; +} + +// StringDecoder provides an interface for efficiently splitting a series of +// buffers into a series of JS strings without breaking apart multi-byte +// characters. +exports.StringDecoder = StringDecoder; +function StringDecoder(encoding) { + this.encoding = normalizeEncoding(encoding); + var nb; + switch (this.encoding) { + case 'utf16le': + this.text = utf16Text; + this.end = utf16End; + nb = 4; + break; + case 'utf8': + this.fillLast = utf8FillLast; + nb = 4; + break; + case 'base64': + this.text = base64Text; + this.end = base64End; + nb = 3; + break; + default: + this.write = simpleWrite; + this.end = simpleEnd; + return; + } + this.lastNeed = 0; + this.lastTotal = 0; + this.lastChar = Buffer.allocUnsafe(nb); +} + +StringDecoder.prototype.write = function (buf) { + if (buf.length === 0) return ''; + var r; + var i; + if (this.lastNeed) { + r = this.fillLast(buf); + if (r === undefined) return ''; + i = this.lastNeed; + this.lastNeed = 0; + } else { + i = 0; + } + if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i); + return r || ''; +}; + +StringDecoder.prototype.end = utf8End; + +// Returns only complete characters in a Buffer +StringDecoder.prototype.text = utf8Text; + +// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer +StringDecoder.prototype.fillLast = function (buf) { + if (this.lastNeed <= buf.length) { + buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed); + return this.lastChar.toString(this.encoding, 0, this.lastTotal); + } + buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length); + this.lastNeed -= buf.length; +}; + +// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a +// continuation byte. If an invalid byte is detected, -2 is returned. +function utf8CheckByte(byte) { + if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4; + return byte >> 6 === 0x02 ? -1 : -2; +} + +// Checks at most 3 bytes at the end of a Buffer in order to detect an +// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4) +// needed to complete the UTF-8 character (if applicable) are returned. +function utf8CheckIncomplete(self, buf, i) { + var j = buf.length - 1; + if (j < i) return 0; + var nb = utf8CheckByte(buf[j]); + if (nb >= 0) { + if (nb > 0) self.lastNeed = nb - 1; + return nb; + } + if (--j < i || nb === -2) return 0; + nb = utf8CheckByte(buf[j]); + if (nb >= 0) { + if (nb > 0) self.lastNeed = nb - 2; + return nb; + } + if (--j < i || nb === -2) return 0; + nb = utf8CheckByte(buf[j]); + if (nb >= 0) { + if (nb > 0) { + if (nb === 2) nb = 0;else self.lastNeed = nb - 3; + } + return nb; + } + return 0; +} + +// Validates as many continuation bytes for a multi-byte UTF-8 character as +// needed or are available. If we see a non-continuation byte where we expect +// one, we "replace" the validated continuation bytes we've seen so far with +// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding +// behavior. The continuation byte check is included three times in the case +// where all of the continuation bytes for a character exist in the same buffer. +// It is also done this way as a slight performance increase instead of using a +// loop. +function utf8CheckExtraBytes(self, buf, p) { + if ((buf[0] & 0xC0) !== 0x80) { + self.lastNeed = 0; + return '\ufffd'; + } + if (self.lastNeed > 1 && buf.length > 1) { + if ((buf[1] & 0xC0) !== 0x80) { + self.lastNeed = 1; + return '\ufffd'; + } + if (self.lastNeed > 2 && buf.length > 2) { + if ((buf[2] & 0xC0) !== 0x80) { + self.lastNeed = 2; + return '\ufffd'; + } + } + } +} + +// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer. +function utf8FillLast(buf) { + var p = this.lastTotal - this.lastNeed; + var r = utf8CheckExtraBytes(this, buf, p); + if (r !== undefined) return r; + if (this.lastNeed <= buf.length) { + buf.copy(this.lastChar, p, 0, this.lastNeed); + return this.lastChar.toString(this.encoding, 0, this.lastTotal); + } + buf.copy(this.lastChar, p, 0, buf.length); + this.lastNeed -= buf.length; +} + +// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a +// partial character, the character's bytes are buffered until the required +// number of bytes are available. +function utf8Text(buf, i) { + var total = utf8CheckIncomplete(this, buf, i); + if (!this.lastNeed) return buf.toString('utf8', i); + this.lastTotal = total; + var end = buf.length - (total - this.lastNeed); + buf.copy(this.lastChar, 0, end); + return buf.toString('utf8', i, end); +} + +// For UTF-8, a replacement character is added when ending on a partial +// character. +function utf8End(buf) { + var r = buf && buf.length ? this.write(buf) : ''; + if (this.lastNeed) return r + '\ufffd'; + return r; +} + +// UTF-16LE typically needs two bytes per character, but even if we have an even +// number of bytes available, we need to check if we end on a leading/high +// surrogate. In that case, we need to wait for the next two bytes in order to +// decode the last character properly. +function utf16Text(buf, i) { + if ((buf.length - i) % 2 === 0) { + var r = buf.toString('utf16le', i); + if (r) { + var c = r.charCodeAt(r.length - 1); + if (c >= 0xD800 && c <= 0xDBFF) { + this.lastNeed = 2; + this.lastTotal = 4; + this.lastChar[0] = buf[buf.length - 2]; + this.lastChar[1] = buf[buf.length - 1]; + return r.slice(0, -1); + } + } + return r; + } + this.lastNeed = 1; + this.lastTotal = 2; + this.lastChar[0] = buf[buf.length - 1]; + return buf.toString('utf16le', i, buf.length - 1); +} + +// For UTF-16LE we do not explicitly append special replacement characters if we +// end on a partial character, we simply let v8 handle that. +function utf16End(buf) { + var r = buf && buf.length ? this.write(buf) : ''; + if (this.lastNeed) { + var end = this.lastTotal - this.lastNeed; + return r + this.lastChar.toString('utf16le', 0, end); + } + return r; +} + +function base64Text(buf, i) { + var n = (buf.length - i) % 3; + if (n === 0) return buf.toString('base64', i); + this.lastNeed = 3 - n; + this.lastTotal = 3; + if (n === 1) { + this.lastChar[0] = buf[buf.length - 1]; + } else { + this.lastChar[0] = buf[buf.length - 2]; + this.lastChar[1] = buf[buf.length - 1]; + } + return buf.toString('base64', i, buf.length - n); +} + +function base64End(buf) { + var r = buf && buf.length ? this.write(buf) : ''; + if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed); + return r; +} + +// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex) +function simpleWrite(buf) { + return buf.toString(this.encoding); +} + +function simpleEnd(buf) { + return buf && buf.length ? this.write(buf) : ''; +} +},{"safe-buffer":23}],40:[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":22,"timers":40}],41:[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 : {}) +},{}]},{},[1])(1) +}); diff --git a/assets/templates/index.html b/assets/templates/index.html index bcf1764..bf36ce7 100644 --- a/assets/templates/index.html +++ b/assets/templates/index.html @@ -6,6 +6,8 @@ + + diff --git a/pkg/server/controller/controller.go b/pkg/server/controller/controller.go index ef2ed9a..2fbfa7f 100644 --- a/pkg/server/controller/controller.go +++ b/pkg/server/controller/controller.go @@ -3,8 +3,10 @@ package controller import ( "bytes" "fmt" + v1 "github.com/fatedier/frp/pkg/config/v1" ginI18n "github.com/gin-contrib/i18n" "github.com/gin-gonic/gin" + "github.com/pelletier/go-toml/v2" "github.com/vaughan0/go-ini" "log" "net/http" @@ -199,7 +201,8 @@ func (c *HandleController) MakeAddProxyFunc() func(context *gin.Context) { func (c *HandleController) MakeUpdateProxyFunc() func(context *gin.Context) { return func(context *gin.Context) { - proxy := ini.Section{} + proxyType := context.Query("type") + proxy := v1.NewProxyConfigurerByType(v1.ProxyType(proxyType)) response := OperationResponse{ Success: true, @@ -207,6 +210,12 @@ func (c *HandleController) MakeUpdateProxyFunc() func(context *gin.Context) { Message: "proxy update success", } + var b = make([]byte, context.Request.ContentLength) + context.Request.Body.Read(b) + var s = string(b) + log.Print(s) + toml.Unmarshal(b, &proxy) + err := context.BindJSON(&proxy) if err != nil { response.Success = false @@ -217,52 +226,56 @@ func (c *HandleController) MakeUpdateProxyFunc() func(context *gin.Context) { return } - oldName := proxy[OldNameKey] - name := proxy[NameKey] + context.JSON(200, &response) - if trimString(oldName) == "" || trimString(name) == "" { - response.Success = false - response.Code = ParamError - response.Message = fmt.Sprintf("proxy add failed, proxy name invalid") - log.Printf(response.Message) - context.JSON(http.StatusOK, &response) - return - } - - if _, exist := clientProxies[oldName]; !exist { - response.Success = false - response.Code = ProxyNotExist - response.Message = fmt.Sprintf("proxy update failed, proxy not exist") - log.Printf(response.Message) - context.JSON(http.StatusOK, &response) - return - } - - if oldName != name { - if _, exist := clientProxies[name]; exist { - response.Success = false - response.Code = ProxyExist - response.Message = fmt.Sprintf("proxy update failed, proxy exist") - log.Printf(response.Message) - context.JSON(http.StatusOK, &response) - return - } - } - - delete(clientProxies, oldName) - clientProxies[name] = proxy - - res := c.UpdateFrpcConfig() - if !res.Success { - response.Success = false - response.Code = res.Code - response.Message = fmt.Sprintf("user update failed, error : %v", res.Message) - log.Printf(response.Message) - context.JSON(http.StatusOK, &response) - return - } - - context.JSON(http.StatusOK, &response) + //proxy.GetBaseConfig() + // + //oldName := proxy[OldNameKey] + //name := proxy[NameKey] + // + //if trimString(oldName) == "" || trimString(name) == "" { + // response.Success = false + // response.Code = ParamError + // response.Message = fmt.Sprintf("proxy add failed, proxy name invalid") + // log.Printf(response.Message) + // context.JSON(http.StatusOK, &response) + // return + //} + // + //if _, exist := clientProxies[oldName]; !exist { + // response.Success = false + // response.Code = ProxyNotExist + // response.Message = fmt.Sprintf("proxy update failed, proxy not exist") + // log.Printf(response.Message) + // context.JSON(http.StatusOK, &response) + // return + //} + // + //if oldName != name { + // if _, exist := clientProxies[name]; exist { + // response.Success = false + // response.Code = ProxyExist + // response.Message = fmt.Sprintf("proxy update failed, proxy exist") + // log.Printf(response.Message) + // context.JSON(http.StatusOK, &response) + // return + // } + //} + // + //delete(clientProxies, oldName) + //clientProxies[name] = proxy + // + //res := c.UpdateFrpcConfig() + //if !res.Success { + // response.Success = false + // response.Code = res.Code + // response.Message = fmt.Sprintf("user update failed, error : %v", res.Message) + // log.Printf(response.Message) + // context.JSON(http.StatusOK, &response) + // return + //} + // + //context.JSON(http.StatusOK, &response) } } diff --git a/pkg/server/controller/utils.go b/pkg/server/controller/utils.go index 1372629..fa5930f 100644 --- a/pkg/server/controller/utils.go +++ b/pkg/server/controller/utils.go @@ -137,11 +137,6 @@ func (c *HandleController) parseResponse(res *ProxyResponse, response *http.Resp log.Printf(res.Message) } -type MyProxy struct { - Toml string `json:"toml"` - *v1.ProxyBaseConfig -} - func (c *HandleController) parseConfigure(content, proxyType string) (interface{}, error) { clientConfig := v1.ClientConfig{} err := config.LoadConfigure([]byte(content), &clientConfig) @@ -160,5 +155,6 @@ func (c *HandleController) parseConfigure(content, proxyType string) (interface{ filterProxies = append(filterProxies, allProxies[i]) } } + return filterProxies, nil }