e-lado
Version:
[](https://circleci.com/gh/sharetribe/sharetribe/tree/master) [](https://gemnasium.com/sharetribe/shar
1,691 lines (1,465 loc) • 477 kB
JavaScript
/******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {};
/******/
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/
/******/ // Check if module is in cache
/******/ if(installedModules[moduleId])
/******/ return installedModules[moduleId].exports;
/******/
/******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = {
/******/ exports: {},
/******/ id: moduleId,
/******/ loaded: false
/******/ };
/******/
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ // Flag the module as loaded
/******/ module.loaded = true;
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
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/******/
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/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
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/******/ __webpack_require__.c = installedModules;
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/******/ __webpack_require__.p = "";
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/******/ // Load entry module and return exports
/******/ return __webpack_require__(0);
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/************************************************************************/
/******/ ([
/* 0 */
/***/ function(module, exports, __webpack_require__) {
__webpack_require__(1).install();
function foo() {
throw new Error('foo');
}
try {
foo();
} catch (e) {
if (/\bscript\.js\b/.test(e.stack)) {
document.body.appendChild(document.createTextNode('Test passed'));
} else {
document.body.appendChild(document.createTextNode('Test failed'));
console.log(e.stack);
}
}
/***/ },
/* 1 */
/***/ function(module, exports, __webpack_require__) {
/* WEBPACK VAR INJECTION */(function(process, Buffer) {var SourceMapConsumer = __webpack_require__(7).SourceMapConsumer;
var path = __webpack_require__(18);
var fs;
try {
fs = __webpack_require__(!(function webpackMissingModule() { var e = new Error("Cannot find module \"fs\""); e.code = 'MODULE_NOT_FOUND'; throw e; }()));
if (!fs.existsSync || !fs.readFileSync) {
// fs doesn't have all methods we need
fs = null;
}
} catch (err) {
/* nop */
}
// Only install once if called multiple times
var errorFormatterInstalled = false;
var uncaughtShimInstalled = false;
// If true, the caches are reset before a stack trace formatting operation
var emptyCacheBetweenOperations = false;
// Supports {browser, node, auto}
var environment = "auto";
// Maps a file path to a string containing the file contents
var fileContentsCache = {};
// Maps a file path to a source map for that file
var sourceMapCache = {};
// Regex for detecting source maps
var reSourceMap = /^data:application\/json[^,]+base64,/;
// Priority list of retrieve handlers
var retrieveFileHandlers = [];
var retrieveMapHandlers = [];
function isInBrowser() {
if (environment === "browser")
return true;
if (environment === "node")
return false;
return ((typeof window !== 'undefined') && (typeof XMLHttpRequest === 'function') && !(window.require && window.module && window.process && window.process.type === "renderer"));
}
function hasGlobalProcessEventEmitter() {
return ((typeof process === 'object') && (process !== null) && (typeof process.on === 'function'));
}
function handlerExec(list) {
return function(arg) {
for (var i = 0; i < list.length; i++) {
var ret = list[i](arg);
if (ret) {
return ret;
}
}
return null;
};
}
var retrieveFile = handlerExec(retrieveFileHandlers);
retrieveFileHandlers.push(function(path) {
// Trim the path to make sure there is no extra whitespace.
path = path.trim();
if (path in fileContentsCache) {
return fileContentsCache[path];
}
var contents = null;
if (!fs) {
// Use SJAX if we are in the browser
var xhr = new XMLHttpRequest();
xhr.open('GET', path, false);
xhr.send(null);
var contents = null
if (xhr.readyState === 4 && xhr.status === 200) {
contents = xhr.responseText
}
} else if (fs.existsSync(path)) {
// Otherwise, use the filesystem
contents = fs.readFileSync(path, 'utf8');
}
return fileContentsCache[path] = contents;
});
// Support URLs relative to a directory, but be careful about a protocol prefix
// in case we are in the browser (i.e. directories may start with "http://")
function supportRelativeURL(file, url) {
if (!file) return url;
var dir = path.dirname(file);
var match = /^\w+:\/\/[^\/]*/.exec(dir);
var protocol = match ? match[0] : '';
return protocol + path.resolve(dir.slice(protocol.length), url);
}
function retrieveSourceMapURL(source) {
var fileData;
if (isInBrowser()) {
try {
var xhr = new XMLHttpRequest();
xhr.open('GET', source, false);
xhr.send(null);
fileData = xhr.readyState === 4 ? xhr.responseText : null;
// Support providing a sourceMappingURL via the SourceMap header
var sourceMapHeader = xhr.getResponseHeader("SourceMap") ||
xhr.getResponseHeader("X-SourceMap");
if (sourceMapHeader) {
return sourceMapHeader;
}
} catch (e) {
return null;
}
}
// Get the URL of the source map
fileData = retrieveFile(source);
var re = /(?:\/\/[@#][ \t]+sourceMappingURL=([^\s'"]+?)[ \t]*$)|(?:\/\*[@#][ \t]+sourceMappingURL=([^\*]+?)[ \t]*(?:\*\/)[ \t]*$)/mg;
// Keep executing the search to find the *last* sourceMappingURL to avoid
// picking up sourceMappingURLs from comments, strings, etc.
var lastMatch, match;
while (match = re.exec(fileData)) lastMatch = match;
if (!lastMatch) return null;
return lastMatch[1];
};
// Can be overridden by the retrieveSourceMap option to install. Takes a
// generated source filename; returns a {map, optional url} object, or null if
// there is no source map. The map field may be either a string or the parsed
// JSON object (ie, it must be a valid argument to the SourceMapConsumer
// constructor).
var retrieveSourceMap = handlerExec(retrieveMapHandlers);
retrieveMapHandlers.push(function(source) {
var sourceMappingURL = retrieveSourceMapURL(source);
if (!sourceMappingURL) return null;
// Read the contents of the source map
var sourceMapData;
if (reSourceMap.test(sourceMappingURL)) {
// Support source map URL as a data url
var rawData = sourceMappingURL.slice(sourceMappingURL.indexOf(',') + 1);
sourceMapData = new Buffer(rawData, "base64").toString();
sourceMappingURL = source;
} else {
// Support source map URLs relative to the source URL
sourceMappingURL = supportRelativeURL(source, sourceMappingURL);
sourceMapData = retrieveFile(sourceMappingURL);
}
if (!sourceMapData) {
return null;
}
return {
url: sourceMappingURL,
map: sourceMapData
};
});
function mapSourcePosition(position) {
var sourceMap = sourceMapCache[position.source];
if (!sourceMap) {
// Call the (overrideable) retrieveSourceMap function to get the source map.
var urlAndMap = retrieveSourceMap(position.source);
if (urlAndMap) {
sourceMap = sourceMapCache[position.source] = {
url: urlAndMap.url,
map: new SourceMapConsumer(urlAndMap.map)
};
// Load all sources stored inline with the source map into the file cache
// to pretend like they are already loaded. They may not exist on disk.
if (sourceMap.map.sourcesContent) {
sourceMap.map.sources.forEach(function(source, i) {
var contents = sourceMap.map.sourcesContent[i];
if (contents) {
var url = supportRelativeURL(sourceMap.url, source);
fileContentsCache[url] = contents;
}
});
}
} else {
sourceMap = sourceMapCache[position.source] = {
url: null,
map: null
};
}
}
// Resolve the source URL relative to the URL of the source map
if (sourceMap && sourceMap.map) {
var originalPosition = sourceMap.map.originalPositionFor(position);
// Only return the original position if a matching line was found. If no
// matching line is found then we return position instead, which will cause
// the stack trace to print the path and line for the compiled file. It is
// better to give a precise location in the compiled file than a vague
// location in the original file.
if (originalPosition.source !== null) {
originalPosition.source = supportRelativeURL(
sourceMap.url, originalPosition.source);
return originalPosition;
}
}
return position;
}
// Parses code generated by FormatEvalOrigin(), a function inside V8:
// https://code.google.com/p/v8/source/browse/trunk/src/messages.js
function mapEvalOrigin(origin) {
// Most eval() calls are in this format
var match = /^eval at ([^(]+) \((.+):(\d+):(\d+)\)$/.exec(origin);
if (match) {
var position = mapSourcePosition({
source: match[2],
line: +match[3],
column: match[4] - 1
});
return 'eval at ' + match[1] + ' (' + position.source + ':' +
position.line + ':' + (position.column + 1) + ')';
}
// Parse nested eval() calls using recursion
match = /^eval at ([^(]+) \((.+)\)$/.exec(origin);
if (match) {
return 'eval at ' + match[1] + ' (' + mapEvalOrigin(match[2]) + ')';
}
// Make sure we still return useful information if we didn't find anything
return origin;
}
// This is copied almost verbatim from the V8 source code at
// https://code.google.com/p/v8/source/browse/trunk/src/messages.js. The
// implementation of wrapCallSite() used to just forward to the actual source
// code of CallSite.prototype.toString but unfortunately a new release of V8
// did something to the prototype chain and broke the shim. The only fix I
// could find was copy/paste.
function CallSiteToString() {
var fileName;
var fileLocation = "";
if (this.isNative()) {
fileLocation = "native";
} else {
fileName = this.getScriptNameOrSourceURL();
if (!fileName && this.isEval()) {
fileLocation = this.getEvalOrigin();
fileLocation += ", "; // Expecting source position to follow.
}
if (fileName) {
fileLocation += fileName;
} else {
// Source code does not originate from a file and is not native, but we
// can still get the source position inside the source string, e.g. in
// an eval string.
fileLocation += "<anonymous>";
}
var lineNumber = this.getLineNumber();
if (lineNumber != null) {
fileLocation += ":" + lineNumber;
var columnNumber = this.getColumnNumber();
if (columnNumber) {
fileLocation += ":" + columnNumber;
}
}
}
var line = "";
var functionName = this.getFunctionName();
var addSuffix = true;
var isConstructor = this.isConstructor();
var isMethodCall = !(this.isToplevel() || isConstructor);
if (isMethodCall) {
var typeName = this.getTypeName();
// Fixes shim to be backward compatable with Node v0 to v4
if (typeName === "[object Object]") {
typeName = "null";
}
var methodName = this.getMethodName();
if (functionName) {
if (typeName && functionName.indexOf(typeName) != 0) {
line += typeName + ".";
}
line += functionName;
if (methodName && functionName.indexOf("." + methodName) != functionName.length - methodName.length - 1) {
line += " [as " + methodName + "]";
}
} else {
line += typeName + "." + (methodName || "<anonymous>");
}
} else if (isConstructor) {
line += "new " + (functionName || "<anonymous>");
} else if (functionName) {
line += functionName;
} else {
line += fileLocation;
addSuffix = false;
}
if (addSuffix) {
line += " (" + fileLocation + ")";
}
return line;
}
function cloneCallSite(frame) {
var object = {};
Object.getOwnPropertyNames(Object.getPrototypeOf(frame)).forEach(function(name) {
object[name] = /^(?:is|get)/.test(name) ? function() { return frame[name].call(frame); } : frame[name];
});
object.toString = CallSiteToString;
return object;
}
function wrapCallSite(frame) {
if(frame.isNative()) {
return frame;
}
// Most call sites will return the source file from getFileName(), but code
// passed to eval() ending in "//# sourceURL=..." will return the source file
// from getScriptNameOrSourceURL() instead
var source = frame.getFileName() || frame.getScriptNameOrSourceURL();
if (source) {
var line = frame.getLineNumber();
var column = frame.getColumnNumber() - 1;
// Fix position in Node where some (internal) code is prepended.
// See https://github.com/evanw/node-source-map-support/issues/36
if (line === 1 && !isInBrowser() && !frame.isEval()) {
column -= 62;
}
var position = mapSourcePosition({
source: source,
line: line,
column: column
});
frame = cloneCallSite(frame);
frame.getFileName = function() { return position.source; };
frame.getLineNumber = function() { return position.line; };
frame.getColumnNumber = function() { return position.column + 1; };
frame.getScriptNameOrSourceURL = function() { return position.source; };
return frame;
}
// Code called using eval() needs special handling
var origin = frame.isEval() && frame.getEvalOrigin();
if (origin) {
origin = mapEvalOrigin(origin);
frame = cloneCallSite(frame);
frame.getEvalOrigin = function() { return origin; };
return frame;
}
// If we get here then we were unable to change the source position
return frame;
}
// This function is part of the V8 stack trace API, for more info see:
// http://code.google.com/p/v8/wiki/JavaScriptStackTraceApi
function prepareStackTrace(error, stack) {
if (emptyCacheBetweenOperations) {
fileContentsCache = {};
sourceMapCache = {};
}
return error + stack.map(function(frame) {
return '\n at ' + wrapCallSite(frame);
}).join('');
}
// Generate position and snippet of original source with pointer
function getErrorSource(error) {
var match = /\n at [^(]+ \((.*):(\d+):(\d+)\)/.exec(error.stack);
if (match) {
var source = match[1];
var line = +match[2];
var column = +match[3];
// Support the inline sourceContents inside the source map
var contents = fileContentsCache[source];
// Support files on disk
if (!contents && fs && fs.existsSync(source)) {
contents = fs.readFileSync(source, 'utf8');
}
// Format the line from the original source code like node does
if (contents) {
var code = contents.split(/(?:\r\n|\r|\n)/)[line - 1];
if (code) {
return source + ':' + line + '\n' + code + '\n' +
new Array(column).join(' ') + '^';
}
}
}
return null;
}
function printErrorAndExit (error) {
var source = getErrorSource(error);
if (source) {
console.error();
console.error(source);
}
console.error(error.stack);
process.exit(1);
}
function shimEmitUncaughtException () {
var origEmit = process.emit;
process.emit = function (type) {
if (type === 'uncaughtException') {
var hasStack = (arguments[1] && arguments[1].stack);
var hasListeners = (this.listeners(type).length > 0);
if (hasStack && !hasListeners) {
return printErrorAndExit(arguments[1]);
}
}
return origEmit.apply(this, arguments);
};
}
exports.wrapCallSite = wrapCallSite;
exports.getErrorSource = getErrorSource;
exports.mapSourcePosition = mapSourcePosition;
exports.retrieveSourceMap = retrieveSourceMap;
exports.install = function(options) {
options = options || {};
if (options.environment) {
environment = options.environment;
if (["node", "browser", "auto"].indexOf(environment) === -1) {
throw new Error("environment " + environment + " was unknown. Available options are {auto, browser, node}")
}
}
// Allow sources to be found by methods other than reading the files
// directly from disk.
if (options.retrieveFile) {
if (options.overrideRetrieveFile) {
retrieveFileHandlers.length = 0;
}
retrieveFileHandlers.unshift(options.retrieveFile);
}
// Allow source maps to be found by methods other than reading the files
// directly from disk.
if (options.retrieveSourceMap) {
if (options.overrideRetrieveSourceMap) {
retrieveMapHandlers.length = 0;
}
retrieveMapHandlers.unshift(options.retrieveSourceMap);
}
// Support runtime transpilers that include inline source maps
if (options.hookRequire && !isInBrowser()) {
var Module;
try {
Module = __webpack_require__(!(function webpackMissingModule() { var e = new Error("Cannot find module \"module\""); e.code = 'MODULE_NOT_FOUND'; throw e; }()));
} catch (err) {
// NOP: Loading in catch block to convert webpack error to warning.
}
var $compile = Module.prototype._compile;
if (!$compile.__sourceMapSupport) {
Module.prototype._compile = function(content, filename) {
fileContentsCache[filename] = content;
sourceMapCache[filename] = undefined;
return $compile.call(this, content, filename);
};
Module.prototype._compile.__sourceMapSupport = true;
}
}
// Configure options
if (!emptyCacheBetweenOperations) {
emptyCacheBetweenOperations = 'emptyCacheBetweenOperations' in options ?
options.emptyCacheBetweenOperations : false;
}
// Install the error reformatter
if (!errorFormatterInstalled) {
errorFormatterInstalled = true;
Error.prepareStackTrace = prepareStackTrace;
}
if (!uncaughtShimInstalled) {
var installHandler = 'handleUncaughtExceptions' in options ?
options.handleUncaughtExceptions : true;
// Provide the option to not install the uncaught exception handler. This is
// to support other uncaught exception handlers (in test frameworks, for
// example). If this handler is not installed and there are no other uncaught
// exception handlers, uncaught exceptions will be caught by node's built-in
// exception handler and the process will still be terminated. However, the
// generated JavaScript code will be shown above the stack trace instead of
// the original source code.
if (installHandler && hasGlobalProcessEventEmitter()) {
uncaughtShimInstalled = true;
shimEmitUncaughtException();
}
}
};
/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(2), __webpack_require__(3).Buffer))
/***/ },
/* 2 */
/***/ function(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.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; };
/***/ },
/* 3 */
/***/ function(module, exports, __webpack_require__) {
/* WEBPACK VAR INJECTION */(function(global) {/*!
* The buffer module from node.js, for the browser.
*
* @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
* @license MIT
*/
/* eslint-disable no-proto */
'use strict'
var base64 = __webpack_require__(4)
var ieee754 = __webpack_require__(5)
var isArray = __webpack_require__(6)
exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50
/**
* If `Buffer.TYPED_ARRAY_SUPPORT`:
* === true Use Uint8Array implementation (fastest)
* === false Use 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+.
*
* Due to various browser bugs, sometimes the Object implementation will be used even
* when the browser supports typed arrays.
*
* Note:
*
* - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
* See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
*
* - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
*
* - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
* incorrect length in some situations.
* We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
* get the Object implementation, which is slower but behaves correctly.
*/
Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
? global.TYPED_ARRAY_SUPPORT
: typedArraySupport()
/*
* Export kMaxLength after typed array support is determined.
*/
exports.kMaxLength = kMaxLength()
function typedArraySupport () {
try {
var arr = new Uint8Array(1)
arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
return arr.foo() === 42 && // typed array instances can be augmented
typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
} catch (e) {
return false
}
}
function kMaxLength () {
return Buffer.TYPED_ARRAY_SUPPORT
? 0x7fffffff
: 0x3fffffff
}
function createBuffer (that, length) {
if (kMaxLength() < length) {
throw new RangeError('Invalid typed array length')
}
if (Buffer.TYPED_ARRAY_SUPPORT) {
// Return an augmented `Uint8Array` instance, for best performance
that = new Uint8Array(length)
that.__proto__ = Buffer.prototype
} else {
// Fallback: Return an object instance of the Buffer class
if (that === null) {
that = new Buffer(length)
}
that.length = length
}
return that
}
/**
* 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) {
if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
return new Buffer(arg, encodingOrOffset, length)
}
// Common case.
if (typeof arg === 'number') {
if (typeof encodingOrOffset === 'string') {
throw new Error(
'If encoding is specified then the first argument must be a string'
)
}
return allocUnsafe(this, arg)
}
return from(this, arg, encodingOrOffset, length)
}
Buffer.poolSize = 8192 // not used by this implementation
// TODO: Legacy, not needed anymore. Remove in next major version.
Buffer._augment = function (arr) {
arr.__proto__ = Buffer.prototype
return arr
}
function from (that, value, encodingOrOffset, length) {
if (typeof value === 'number') {
throw new TypeError('"value" argument must not be a number')
}
if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
return fromArrayBuffer(that, value, encodingOrOffset, length)
}
if (typeof value === 'string') {
return fromString(that, value, encodingOrOffset)
}
return fromObject(that, 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(null, value, encodingOrOffset, length)
}
if (Buffer.TYPED_ARRAY_SUPPORT) {
Buffer.prototype.__proto__ = Uint8Array.prototype
Buffer.__proto__ = Uint8Array
if (typeof Symbol !== 'undefined' && Symbol.species &&
Buffer[Symbol.species] === Buffer) {
// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
Object.defineProperty(Buffer, Symbol.species, {
value: null,
configurable: true
})
}
}
function assertSize (size) {
if (typeof size !== 'number') {
throw new TypeError('"size" argument must be a number')
} else if (size < 0) {
throw new RangeError('"size" argument must not be negative')
}
}
function alloc (that, size, fill, encoding) {
assertSize(size)
if (size <= 0) {
return createBuffer(that, 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(that, size).fill(fill, encoding)
: createBuffer(that, size).fill(fill)
}
return createBuffer(that, size)
}
/**
* Creates a new filled Buffer instance.
* alloc(size[, fill[, encoding]])
**/
Buffer.alloc = function (size, fill, encoding) {
return alloc(null, size, fill, encoding)
}
function allocUnsafe (that, size) {
assertSize(size)
that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)
if (!Buffer.TYPED_ARRAY_SUPPORT) {
for (var i = 0; i < size; ++i) {
that[i] = 0
}
}
return that
}
/**
* Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
* */
Buffer.allocUnsafe = function (size) {
return allocUnsafe(null, size)
}
/**
* Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
*/
Buffer.allocUnsafeSlow = function (size) {
return allocUnsafe(null, size)
}
function fromString (that, string, encoding) {
if (typeof encoding !== 'string' || encoding === '') {
encoding = 'utf8'
}
if (!Buffer.isEncoding(encoding)) {
throw new TypeError('"encoding" must be a valid string encoding')
}
var length = byteLength(string, encoding) | 0
that = createBuffer(that, length)
var actual = that.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')
that = that.slice(0, actual)
}
return that
}
function fromArrayLike (that, array) {
var length = array.length < 0 ? 0 : checked(array.length) | 0
that = createBuffer(that, length)
for (var i = 0; i < length; i += 1) {
that[i] = array[i] & 255
}
return that
}
function fromArrayBuffer (that, array, byteOffset, length) {
array.byteLength // this throws if `array` is not a valid ArrayBuffer
if (byteOffset < 0 || array.byteLength < byteOffset) {
throw new RangeError('\'offset\' is out of bounds')
}
if (array.byteLength < byteOffset + (length || 0)) {
throw new RangeError('\'length\' is out of bounds')
}
if (byteOffset === undefined && length === undefined) {
array = new Uint8Array(array)
} else if (length === undefined) {
array = new Uint8Array(array, byteOffset)
} else {
array = new Uint8Array(array, byteOffset, length)
}
if (Buffer.TYPED_ARRAY_SUPPORT) {
// Return an augmented `Uint8Array` instance, for best performance
that = array
that.__proto__ = Buffer.prototype
} else {
// Fallback: Return an object instance of the Buffer class
that = fromArrayLike(that, array)
}
return that
}
function fromObject (that, obj) {
if (Buffer.isBuffer(obj)) {
var len = checked(obj.length) | 0
that = createBuffer(that, len)
if (that.length === 0) {
return that
}
obj.copy(that, 0, 0, len)
return that
}
if (obj) {
if ((typeof ArrayBuffer !== 'undefined' &&
obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
if (typeof obj.length !== 'number' || isnan(obj.length)) {
return createBuffer(that, 0)
}
return fromArrayLike(that, obj)
}
if (obj.type === 'Buffer' && isArray(obj.data)) {
return fromArrayLike(that, obj.data)
}
}
throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
}
function checked (length) {
// Note: cannot use `length < kMaxLength()` here because that fails when
// length is NaN (which is otherwise coerced to zero.)
if (length >= kMaxLength()) {
throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
'size: 0x' + kMaxLength().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)
}
Buffer.compare = function compare (a, b) {
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
throw new TypeError('Arguments must be Buffers')
}
if (a === b) return 0
var x = a.length
var y = b.length
for (var i = 0, len = Math.min(x, y); i < len; ++i) {
if (a[i] !== b[i]) {
x = a[i]
y = b[i]
break
}
}
if (x < y) return -1
if (y < x) return 1
return 0
}
Buffer.isEncoding = function isEncoding (encoding) {
switch (String(encoding).toLowerCase()) {
case 'hex':
case 'utf8':
case 'utf-8':
case 'ascii':
case 'latin1':
case 'binary':
case 'base64':
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return true
default:
return false
}
}
Buffer.concat = function concat (list, length) {
if (!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 (!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 (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
(ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
return string.byteLength
}
if (typeof string !== 'string') {
string = '' + string
}
var len = string.length
if (len === 0) return 0
// Use a for loop to avoid recursion
var loweredCase = false
for (;;) {
switch (encoding) {
case 'ascii':
case 'latin1':
case 'binary':
return len
case 'utf8':
case 'utf-8':
case undefined:
return utf8ToBytes(string).length
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return len * 2
case 'hex':
return len >>> 1
case 'base64':
return base64ToBytes(string).length
default:
if (loweredCase) return utf8ToBytes(string).length // assume utf8
encoding = ('' + encoding).toLowerCase()
loweredCase = true
}
}
}
Buffer.byteLength = byteLength
function slowToString (encoding, start, end) {
var loweredCase = false
// No need to verify that "this.length <= MAX_UINT32" since it's a read-only
// property of a typed array.
// This behaves neither like String nor Uint8Array in that we set start/end
// to their upper/lower bounds if the value passed is out of range.
// undefined is handled specially as per ECMA-262 6th Edition,
// Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
if (start === undefined || start < 0) {
start = 0
}
// Return early if start > this.length. Done here to prevent potential uint32
// coercion fail below.
if (start > this.length) {
return ''
}
if (end === undefined || end > this.length) {
end = this.length
}
if (end <= 0) {
return ''
}
// Force coersion to uint32. This will also coerce falsey/NaN values to 0.
end >>>= 0
start >>>= 0
if (end <= start) {
return ''
}
if (!encoding) encoding = 'utf8'
while (true) {
switch (encoding) {
case 'hex':
return hexSlice(this, start, end)
case 'utf8':
case 'utf-8':
return utf8Slice(this, start, end)
case 'ascii':
return asciiSlice(this, start, end)
case 'latin1':
case 'binary':
return latin1Slice(this, start, end)
case 'base64':
return base64Slice(this, start, end)
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return utf16leSlice(this, start, end)
default:
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
encoding = (encoding + '').toLowerCase()
loweredCase = true
}
}
}
// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
// Buffer instances.
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 | 0
if (length === 0) return ''
if (arguments.length === 0) return utf8Slice(this, 0, length)
return slowToString.apply(this, arguments)
}
Buffer.prototype.equals = function equals (b) {
if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
if (this === b) return true
return Buffer.compare(this, b) === 0
}
Buffer.prototype.inspect = function inspect () {
var str = ''
var max = exports.INSPECT_MAX_BYTES
if (this.length > 0) {
str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
if (this.length > max) str += ' ... '
}
return '<Buffer ' + str + '>'
}
Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
if (!Buffer.isBuffer(target)) {
throw new TypeError('Argument must be a Buffer')
}
if (start === undefined) {
start = 0
}
if (end === undefined) {
end = target ? target.length : 0
}
if (thisStart === undefined) {
thisStart = 0
}
if (thisEnd === undefined) {
thisEnd = this.length
}
if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
throw new RangeError('out of range index')
}
if (thisStart >= thisEnd && start >= end) {
return 0
}
if (thisStart >= thisEnd) {
return -1
}
if (start >= end) {
return 1
}
start >>>= 0
end >>>= 0
thisStart >>>= 0
thisEnd >>>= 0
if (this === target) return 0
var x = thisEnd - thisStart
var y = end - start
var len = Math.min(x, y)
var thisCopy = this.slice(thisStart, thisEnd)
var targetCopy = target.slice(start, end)
for (var i = 0; i < len; ++i) {
if (thisCopy[i] !== targetCopy[i]) {
x = thisCopy[i]
y = targetCopy[i]
break
}
}
if (x < y) return -1
if (y < x) return 1
return 0
}
// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
// Empty buffer means no match
if (buffer.length === 0) return -1
// Normalize byteOffset
if (typeof byteOffset === 'string') {
encoding = byteOffset
byteOffset = 0
} else if (byteOffset > 0x7fffffff) {
byteOffset = 0x7fffffff
} else if (byteOffset < -0x80000000) {
byteOffset = -0x80000000
}
byteOffset = +byteOffset // Coerce to Number.
if (isNaN(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 (Buffer.TYPED_ARRAY_SUPPORT &&
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
}
}
// must be an even number of digits
var strLen = string.length
if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
if (length > strLen / 2) {
length = strLen / 2
}
for (var i = 0; i < length; ++i) {
var parsed = parseInt(string.substr(i * 2, 2), 16)
if (isNaN(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
}
// legacy write(string, encoding, offset, length) - remove in v0.13
} 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