Files
MYSOPHAL/public/lib/file-type.js
2025-08-07 13:15:31 +01:00

11974 lines
314 KiB
JavaScript
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/******/ (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] = {
/******/ i: moduleId,
/******/ l: false,
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ // Flag the module as loaded
/******/ module.l = true;
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/******/
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/
/******/ // define getter function for harmony exports
/******/ __webpack_require__.d = function(exports, name, getter) {
/******/ if(!__webpack_require__.o(exports, name)) {
/******/ Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ }
/******/ };
/******/
/******/ // define __esModule on exports
/******/ __webpack_require__.r = function(exports) {
/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ }
/******/ Object.defineProperty(exports, '__esModule', { value: true });
/******/ };
/******/
/******/ // create a fake namespace object
/******/ // mode & 1: value is a module id, require it
/******/ // mode & 2: merge all properties of value into the ns
/******/ // mode & 4: return value when already ns object
/******/ // mode & 8|1: behave like require
/******/ __webpack_require__.t = function(value, mode) {
/******/ if(mode & 1) value = __webpack_require__(value);
/******/ if(mode & 8) return value;
/******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ var ns = Object.create(null);
/******/ __webpack_require__.r(ns);
/******/ Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ return ns;
/******/ };
/******/
/******/ // getDefaultExport function for compatibility with non-harmony modules
/******/ __webpack_require__.n = function(module) {
/******/ var getter = module && module.__esModule ?
/******/ function getDefault() { return module['default']; } :
/******/ function getModuleExports() { return module; };
/******/ __webpack_require__.d(getter, 'a', getter);
/******/ return getter;
/******/ };
/******/
/******/ // Object.prototype.hasOwnProperty.call
/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ // __webpack_public_path__
/******/ __webpack_require__.p = "";
/******/
/******/
/******/ // Load entry module and return exports
/******/ return __webpack_require__(__webpack_require__.s = 418);
/******/ })
/************************************************************************/
/******/ ({
/***/ 10:
/***/ (function(module, exports, __webpack_require__) {
try {
var util = __webpack_require__(7);
if (typeof util.inherits !== 'function') throw '';
module.exports = util.inherits;
} catch (e) {
module.exports = __webpack_require__(11);
}
/***/ }),
/***/ 108:
/***/ (function(module, exports, __webpack_require__) {
/* WEBPACK VAR INJECTION */(function(global) {var scope = (typeof global !== "undefined" && global) ||
(typeof self !== "undefined" && self) ||
window;
var apply = Function.prototype.apply;
// DOM APIs, for completeness
exports.setTimeout = function() {
return new Timeout(apply.call(setTimeout, scope, arguments), clearTimeout);
};
exports.setInterval = function() {
return new Timeout(apply.call(setInterval, scope, arguments), clearInterval);
};
exports.clearTimeout =
exports.clearInterval = function(timeout) {
if (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(scope, 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);
}
};
// setimmediate attaches itself to the global object
__webpack_require__(109);
// On some exotic environments, it's not clear which object `setimmediate` was
// able to install onto. Search each possibility in the same order as the
// `setimmediate` library.
exports.setImmediate = (typeof self !== "undefined" && self.setImmediate) ||
(typeof global !== "undefined" && global.setImmediate) ||
(this && this.setImmediate);
exports.clearImmediate = (typeof self !== "undefined" && self.clearImmediate) ||
(typeof global !== "undefined" && global.clearImmediate) ||
(this && this.clearImmediate);
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(6)))
/***/ }),
/***/ 109:
/***/ (function(module, exports, __webpack_require__) {
/* WEBPACK VAR INJECTION */(function(global, process) {(function (global, undefined) {
"use strict";
if (global.setImmediate) {
return;
}
var nextHandle = 1; // Spec says greater than zero
var tasksByHandle = {};
var currentlyRunningATask = false;
var doc = global.document;
var registerImmediate;
function setImmediate(callback) {
// Callback can either be a function or a string
if (typeof callback !== "function") {
callback = new Function("" + callback);
}
// Copy function arguments
var args = new Array(arguments.length - 1);
for (var i = 0; i < args.length; i++) {
args[i] = arguments[i + 1];
}
// Store and register the task
var task = { callback: callback, args: args };
tasksByHandle[nextHandle] = task;
registerImmediate(nextHandle);
return nextHandle++;
}
function clearImmediate(handle) {
delete tasksByHandle[handle];
}
function run(task) {
var callback = task.callback;
var args = task.args;
switch (args.length) {
case 0:
callback();
break;
case 1:
callback(args[0]);
break;
case 2:
callback(args[0], args[1]);
break;
case 3:
callback(args[0], args[1], args[2]);
break;
default:
callback.apply(undefined, args);
break;
}
}
function runIfPresent(handle) {
// From the spec: "Wait until any invocations of this algorithm started before this one have completed."
// So if we're currently running a task, we'll need to delay this invocation.
if (currentlyRunningATask) {
// Delay by doing a setTimeout. setImmediate was tried instead, but in Firefox 7 it generated a
// "too much recursion" error.
setTimeout(runIfPresent, 0, handle);
} else {
var task = tasksByHandle[handle];
if (task) {
currentlyRunningATask = true;
try {
run(task);
} finally {
clearImmediate(handle);
currentlyRunningATask = false;
}
}
}
}
function installNextTickImplementation() {
registerImmediate = function(handle) {
process.nextTick(function () { runIfPresent(handle); });
};
}
function canUsePostMessage() {
// The test against `importScripts` prevents this implementation from being installed inside a web worker,
// where `global.postMessage` means something completely different and can't be used for this purpose.
if (global.postMessage && !global.importScripts) {
var postMessageIsAsynchronous = true;
var oldOnMessage = global.onmessage;
global.onmessage = function() {
postMessageIsAsynchronous = false;
};
global.postMessage("", "*");
global.onmessage = oldOnMessage;
return postMessageIsAsynchronous;
}
}
function installPostMessageImplementation() {
// Installs an event handler on `global` for the `message` event: see
// * https://developer.mozilla.org/en/DOM/window.postMessage
// * http://www.whatwg.org/specs/web-apps/current-work/multipage/comms.html#crossDocumentMessages
var messagePrefix = "setImmediate$" + Math.random() + "$";
var onGlobalMessage = function(event) {
if (event.source === global &&
typeof event.data === "string" &&
event.data.indexOf(messagePrefix) === 0) {
runIfPresent(+event.data.slice(messagePrefix.length));
}
};
if (global.addEventListener) {
global.addEventListener("message", onGlobalMessage, false);
} else {
global.attachEvent("onmessage", onGlobalMessage);
}
registerImmediate = function(handle) {
global.postMessage(messagePrefix + handle, "*");
};
}
function installMessageChannelImplementation() {
var channel = new MessageChannel();
channel.port1.onmessage = function(event) {
var handle = event.data;
runIfPresent(handle);
};
registerImmediate = function(handle) {
channel.port2.postMessage(handle);
};
}
function installReadyStateChangeImplementation() {
var html = doc.documentElement;
registerImmediate = function(handle) {
// Create a <script> element; its readystatechange event will be fired asynchronously once it is inserted
// into the document. Do so, thus queuing up the task. Remember to clean up once it's been called.
var script = doc.createElement("script");
script.onreadystatechange = function () {
runIfPresent(handle);
script.onreadystatechange = null;
html.removeChild(script);
script = null;
};
html.appendChild(script);
};
}
function installSetTimeoutImplementation() {
registerImmediate = function(handle) {
setTimeout(runIfPresent, 0, handle);
};
}
// If supported, we should attach to the prototype of global, since that is where setTimeout et al. live.
var attachTo = Object.getPrototypeOf && Object.getPrototypeOf(global);
attachTo = attachTo && attachTo.setTimeout ? attachTo : global;
// Don't get fooled by e.g. browserify environments.
if ({}.toString.call(global.process) === "[object process]") {
// For Node.js before 0.9
installNextTickImplementation();
} else if (canUsePostMessage()) {
// For non-IE10 modern browsers
installPostMessageImplementation();
} else if (global.MessageChannel) {
// For web workers, where supported
installMessageChannelImplementation();
} else if (doc && "onreadystatechange" in doc.createElement("script")) {
// For IE 68
installReadyStateChangeImplementation();
} else {
// For older browsers
installSetTimeoutImplementation();
}
attachTo.setImmediate = setImmediate;
attachTo.clearImmediate = clearImmediate;
}(typeof self === "undefined" ? typeof global === "undefined" ? this : global : self));
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(6), __webpack_require__(8)))
/***/ }),
/***/ 11:
/***/ (function(module, exports) {
if (typeof Object.create === 'function') {
// implementation from standard node.js 'util' module
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
ctor.prototype = Object.create(superCtor.prototype, {
constructor: {
value: ctor,
enumerable: false,
writable: true,
configurable: true
}
});
};
} else {
// old school shim for old browsers
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
var TempCtor = function () {}
TempCtor.prototype = superCtor.prototype
ctor.prototype = new TempCtor()
ctor.prototype.constructor = ctor
}
}
/***/ }),
/***/ 12:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/* WEBPACK VAR INJECTION */(function(global) {
var objectAssign = __webpack_require__(13);
// compare and isBuffer taken from https://github.com/feross/buffer/blob/680e9e5e488f22aac27599a57dc844a6315928dd/index.js
// original notice:
/*!
* The buffer module from node.js, for the browser.
*
* @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
* @license MIT
*/
function compare(a, b) {
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;
}
function isBuffer(b) {
if (global.Buffer && typeof global.Buffer.isBuffer === 'function') {
return global.Buffer.isBuffer(b);
}
return !!(b != null && b._isBuffer);
}
// based on node assert, original notice:
// NB: The URL to the CommonJS spec is kept just for tradition.
// node-assert has evolved a lot since then, both in API and behavior.
// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
//
// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
//
// Originally from narwhal.js (http://narwhaljs.org)
// Copyright (c) 2009 Thomas Robinson <280north.com>
//
// 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 BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
var util = __webpack_require__(7);
var hasOwn = Object.prototype.hasOwnProperty;
var pSlice = Array.prototype.slice;
var functionsHaveNames = (function () {
return function foo() {}.name === 'foo';
}());
function pToString (obj) {
return Object.prototype.toString.call(obj);
}
function isView(arrbuf) {
if (isBuffer(arrbuf)) {
return false;
}
if (typeof global.ArrayBuffer !== 'function') {
return false;
}
if (typeof ArrayBuffer.isView === 'function') {
return ArrayBuffer.isView(arrbuf);
}
if (!arrbuf) {
return false;
}
if (arrbuf instanceof DataView) {
return true;
}
if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) {
return true;
}
return false;
}
// 1. The assert module provides functions that throw
// AssertionError's when particular conditions are not met. The
// assert module must conform to the following interface.
var assert = module.exports = ok;
// 2. The AssertionError is defined in assert.
// new assert.AssertionError({ message: message,
// actual: actual,
// expected: expected })
var regex = /\s*function\s+([^\(\s]*)\s*/;
// based on https://github.com/ljharb/function.prototype.name/blob/adeeeec8bfcc6068b187d7d9fb3d5bb1d3a30899/implementation.js
function getName(func) {
if (!util.isFunction(func)) {
return;
}
if (functionsHaveNames) {
return func.name;
}
var str = func.toString();
var match = str.match(regex);
return match && match[1];
}
assert.AssertionError = function AssertionError(options) {
this.name = 'AssertionError';
this.actual = options.actual;
this.expected = options.expected;
this.operator = options.operator;
if (options.message) {
this.message = options.message;
this.generatedMessage = false;
} else {
this.message = getMessage(this);
this.generatedMessage = true;
}
var stackStartFunction = options.stackStartFunction || fail;
if (Error.captureStackTrace) {
Error.captureStackTrace(this, stackStartFunction);
} else {
// non v8 browsers so we can have a stacktrace
var err = new Error();
if (err.stack) {
var out = err.stack;
// try to strip useless frames
var fn_name = getName(stackStartFunction);
var idx = out.indexOf('\n' + fn_name);
if (idx >= 0) {
// once we have located the function frame
// we need to strip out everything before it (and its line)
var next_line = out.indexOf('\n', idx + 1);
out = out.substring(next_line + 1);
}
this.stack = out;
}
}
};
// assert.AssertionError instanceof Error
util.inherits(assert.AssertionError, Error);
function truncate(s, n) {
if (typeof s === 'string') {
return s.length < n ? s : s.slice(0, n);
} else {
return s;
}
}
function inspect(something) {
if (functionsHaveNames || !util.isFunction(something)) {
return util.inspect(something);
}
var rawname = getName(something);
var name = rawname ? ': ' + rawname : '';
return '[Function' + name + ']';
}
function getMessage(self) {
return truncate(inspect(self.actual), 128) + ' ' +
self.operator + ' ' +
truncate(inspect(self.expected), 128);
}
// At present only the three keys mentioned above are used and
// understood by the spec. Implementations or sub modules can pass
// other keys to the AssertionError's constructor - they will be
// ignored.
// 3. All of the following functions must throw an AssertionError
// when a corresponding condition is not met, with a message that
// may be undefined if not provided. All assertion methods provide
// both the actual and expected values to the assertion error for
// display purposes.
function fail(actual, expected, message, operator, stackStartFunction) {
throw new assert.AssertionError({
message: message,
actual: actual,
expected: expected,
operator: operator,
stackStartFunction: stackStartFunction
});
}
// EXTENSION! allows for well behaved errors defined elsewhere.
assert.fail = fail;
// 4. Pure assertion tests whether a value is truthy, as determined
// by !!guard.
// assert.ok(guard, message_opt);
// This statement is equivalent to assert.equal(true, !!guard,
// message_opt);. To test strictly for the value true, use
// assert.strictEqual(true, guard, message_opt);.
function ok(value, message) {
if (!value) fail(value, true, message, '==', assert.ok);
}
assert.ok = ok;
// 5. The equality assertion tests shallow, coercive equality with
// ==.
// assert.equal(actual, expected, message_opt);
assert.equal = function equal(actual, expected, message) {
if (actual != expected) fail(actual, expected, message, '==', assert.equal);
};
// 6. The non-equality assertion tests for whether two objects are not equal
// with != assert.notEqual(actual, expected, message_opt);
assert.notEqual = function notEqual(actual, expected, message) {
if (actual == expected) {
fail(actual, expected, message, '!=', assert.notEqual);
}
};
// 7. The equivalence assertion tests a deep equality relation.
// assert.deepEqual(actual, expected, message_opt);
assert.deepEqual = function deepEqual(actual, expected, message) {
if (!_deepEqual(actual, expected, false)) {
fail(actual, expected, message, 'deepEqual', assert.deepEqual);
}
};
assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) {
if (!_deepEqual(actual, expected, true)) {
fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual);
}
};
function _deepEqual(actual, expected, strict, memos) {
// 7.1. All identical values are equivalent, as determined by ===.
if (actual === expected) {
return true;
} else if (isBuffer(actual) && isBuffer(expected)) {
return compare(actual, expected) === 0;
// 7.2. If the expected value is a Date object, the actual value is
// equivalent if it is also a Date object that refers to the same time.
} else if (util.isDate(actual) && util.isDate(expected)) {
return actual.getTime() === expected.getTime();
// 7.3 If the expected value is a RegExp object, the actual value is
// equivalent if it is also a RegExp object with the same source and
// properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
} else if (util.isRegExp(actual) && util.isRegExp(expected)) {
return actual.source === expected.source &&
actual.global === expected.global &&
actual.multiline === expected.multiline &&
actual.lastIndex === expected.lastIndex &&
actual.ignoreCase === expected.ignoreCase;
// 7.4. Other pairs that do not both pass typeof value == 'object',
// equivalence is determined by ==.
} else if ((actual === null || typeof actual !== 'object') &&
(expected === null || typeof expected !== 'object')) {
return strict ? actual === expected : actual == expected;
// If both values are instances of typed arrays, wrap their underlying
// ArrayBuffers in a Buffer each to increase performance
// This optimization requires the arrays to have the same type as checked by
// Object.prototype.toString (aka pToString). Never perform binary
// comparisons for Float*Arrays, though, since e.g. +0 === -0 but their
// bit patterns are not identical.
} else if (isView(actual) && isView(expected) &&
pToString(actual) === pToString(expected) &&
!(actual instanceof Float32Array ||
actual instanceof Float64Array)) {
return compare(new Uint8Array(actual.buffer),
new Uint8Array(expected.buffer)) === 0;
// 7.5 For all other Object pairs, including Array objects, equivalence is
// determined by having the same number of owned properties (as verified
// with Object.prototype.hasOwnProperty.call), the same set of keys
// (although not necessarily the same order), equivalent values for every
// corresponding key, and an identical 'prototype' property. Note: this
// accounts for both named and indexed properties on Arrays.
} else if (isBuffer(actual) !== isBuffer(expected)) {
return false;
} else {
memos = memos || {actual: [], expected: []};
var actualIndex = memos.actual.indexOf(actual);
if (actualIndex !== -1) {
if (actualIndex === memos.expected.indexOf(expected)) {
return true;
}
}
memos.actual.push(actual);
memos.expected.push(expected);
return objEquiv(actual, expected, strict, memos);
}
}
function isArguments(object) {
return Object.prototype.toString.call(object) == '[object Arguments]';
}
function objEquiv(a, b, strict, actualVisitedObjects) {
if (a === null || a === undefined || b === null || b === undefined)
return false;
// if one is a primitive, the other must be same
if (util.isPrimitive(a) || util.isPrimitive(b))
return a === b;
if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b))
return false;
var aIsArgs = isArguments(a);
var bIsArgs = isArguments(b);
if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
return false;
if (aIsArgs) {
a = pSlice.call(a);
b = pSlice.call(b);
return _deepEqual(a, b, strict);
}
var ka = objectKeys(a);
var kb = objectKeys(b);
var key, i;
// having the same number of owned properties (keys incorporates
// hasOwnProperty)
if (ka.length !== kb.length)
return false;
//the same set of keys (although not necessarily the same order),
ka.sort();
kb.sort();
//~~~cheap key test
for (i = ka.length - 1; i >= 0; i--) {
if (ka[i] !== kb[i])
return false;
}
//equivalent values for every corresponding key, and
//~~~possibly expensive deep test
for (i = ka.length - 1; i >= 0; i--) {
key = ka[i];
if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects))
return false;
}
return true;
}
// 8. The non-equivalence assertion tests for any deep inequality.
// assert.notDeepEqual(actual, expected, message_opt);
assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
if (_deepEqual(actual, expected, false)) {
fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
}
};
assert.notDeepStrictEqual = notDeepStrictEqual;
function notDeepStrictEqual(actual, expected, message) {
if (_deepEqual(actual, expected, true)) {
fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual);
}
}
// 9. The strict equality assertion tests strict equality, as determined by ===.
// assert.strictEqual(actual, expected, message_opt);
assert.strictEqual = function strictEqual(actual, expected, message) {
if (actual !== expected) {
fail(actual, expected, message, '===', assert.strictEqual);
}
};
// 10. The strict non-equality assertion tests for strict inequality, as
// determined by !==. assert.notStrictEqual(actual, expected, message_opt);
assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
if (actual === expected) {
fail(actual, expected, message, '!==', assert.notStrictEqual);
}
};
function expectedException(actual, expected) {
if (!actual || !expected) {
return false;
}
if (Object.prototype.toString.call(expected) == '[object RegExp]') {
return expected.test(actual);
}
try {
if (actual instanceof expected) {
return true;
}
} catch (e) {
// Ignore. The instanceof check doesn't work for arrow functions.
}
if (Error.isPrototypeOf(expected)) {
return false;
}
return expected.call({}, actual) === true;
}
function _tryBlock(block) {
var error;
try {
block();
} catch (e) {
error = e;
}
return error;
}
function _throws(shouldThrow, block, expected, message) {
var actual;
if (typeof block !== 'function') {
throw new TypeError('"block" argument must be a function');
}
if (typeof expected === 'string') {
message = expected;
expected = null;
}
actual = _tryBlock(block);
message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
(message ? ' ' + message : '.');
if (shouldThrow && !actual) {
fail(actual, expected, 'Missing expected exception' + message);
}
var userProvidedMessage = typeof message === 'string';
var isUnwantedException = !shouldThrow && util.isError(actual);
var isUnexpectedException = !shouldThrow && actual && !expected;
if ((isUnwantedException &&
userProvidedMessage &&
expectedException(actual, expected)) ||
isUnexpectedException) {
fail(actual, expected, 'Got unwanted exception' + message);
}
if ((shouldThrow && actual && expected &&
!expectedException(actual, expected)) || (!shouldThrow && actual)) {
throw actual;
}
}
// 11. Expected to throw an error:
// assert.throws(block, Error_opt, message_opt);
assert.throws = function(block, /*optional*/error, /*optional*/message) {
_throws(true, block, error, message);
};
// EXTENSION! This is annoying to write outside this module.
assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) {
_throws(false, block, error, message);
};
assert.ifError = function(err) { if (err) throw err; };
// Expose a strict only variant of assert
function strict(value, message) {
if (!value) fail(value, true, message, '==', strict);
}
assert.strict = objectAssign(strict, assert, {
equal: assert.strictEqual,
deepEqual: assert.deepStrictEqual,
notEqual: assert.notStrictEqual,
notDeepEqual: assert.notDeepStrictEqual
});
assert.strict.strict = assert.strict;
var objectKeys = Object.keys || function (obj) {
var keys = [];
for (var key in obj) {
if (hasOwn.call(obj, key)) keys.push(key);
}
return keys;
};
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(6)))
/***/ }),
/***/ 13:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/*
object-assign
(c) Sindre Sorhus
@license MIT
*/
/* eslint-disable no-unused-vars */
var getOwnPropertySymbols = Object.getOwnPropertySymbols;
var hasOwnProperty = Object.prototype.hasOwnProperty;
var propIsEnumerable = Object.prototype.propertyIsEnumerable;
function toObject(val) {
if (val === null || val === undefined) {
throw new TypeError('Object.assign cannot be called with null or undefined');
}
return Object(val);
}
function shouldUseNative() {
try {
if (!Object.assign) {
return false;
}
// Detect buggy property enumeration order in older V8 versions.
// https://bugs.chromium.org/p/v8/issues/detail?id=4118
var test1 = new String('abc'); // eslint-disable-line no-new-wrappers
test1[5] = 'de';
if (Object.getOwnPropertyNames(test1)[0] === '5') {
return false;
}
// https://bugs.chromium.org/p/v8/issues/detail?id=3056
var test2 = {};
for (var i = 0; i < 10; i++) {
test2['_' + String.fromCharCode(i)] = i;
}
var order2 = Object.getOwnPropertyNames(test2).map(function (n) {
return test2[n];
});
if (order2.join('') !== '0123456789') {
return false;
}
// https://bugs.chromium.org/p/v8/issues/detail?id=3056
var test3 = {};
'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
test3[letter] = letter;
});
if (Object.keys(Object.assign({}, test3)).join('') !==
'abcdefghijklmnopqrst') {
return false;
}
return true;
} catch (err) {
// We don't expect any of the above to throw, but better to be safe.
return false;
}
}
module.exports = shouldUseNative() ? Object.assign : function (target, source) {
var from;
var to = toObject(target);
var symbols;
for (var s = 1; s < arguments.length; s++) {
from = Object(arguments[s]);
for (var key in from) {
if (hasOwnProperty.call(from, key)) {
to[key] = from[key];
}
}
if (getOwnPropertySymbols) {
symbols = getOwnPropertySymbols(from);
for (var i = 0; i < symbols.length; i++) {
if (propIsEnumerable.call(from, symbols[i])) {
to[symbols[i]] = from[symbols[i]];
}
}
}
}
return to;
};
/***/ }),
/***/ 418:
/***/ (function(module, exports, __webpack_require__) {
/**
* ---------------------------------------------------------------------
* GLPI - Gestionnaire Libre de Parc Informatique
* Copyright (C) 2015-2020 Teclib' and contributors.
*
* http://glpi-project.org
*
* based on GLPI - Gestionnaire Libre de Parc Informatique
* Copyright (C) 2003-2014 by the INDEPNET Development Team.
*
* ---------------------------------------------------------------------
*
* LICENSE
*
* This file is part of GLPI.
*
* GLPI is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GLPI is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GLPI. If not, see <http://www.gnu.org/licenses/>.
* ---------------------------------------------------------------------
*/
window.fileType = __webpack_require__(419);
/***/ }),
/***/ 419:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
const {ReadableWebToNodeStream} = __webpack_require__(420);
const toBuffer = __webpack_require__(447);
const core = __webpack_require__(449);
async function fromStream(stream) {
const readableWebToNodeStream = new ReadableWebToNodeStream(stream);
const fileType = await core.fromStream(readableWebToNodeStream);
await readableWebToNodeStream.close();
return fileType;
}
async function fromBlob(blob) {
const buffer = await convertBlobToBuffer(blob);
return core.fromBuffer(buffer);
}
/**
Convert Web API File to Node Buffer.
@param {Blob} blob - Web API Blob.
@returns {Promise<Buffer>}
*/
function convertBlobToBuffer(blob) {
return new Promise((resolve, reject) => {
const fileReader = new FileReader();
fileReader.addEventListener('loadend', event => {
let data = event.target.result;
if (data instanceof ArrayBuffer) {
data = toBuffer(new Uint8Array(event.target.result));
}
resolve(data);
});
fileReader.addEventListener('error', event => {
reject(new Error(event.message));
});
fileReader.addEventListener('abort', event => {
reject(new Error(event.type));
});
fileReader.readAsArrayBuffer(blob);
});
}
Object.assign(module.exports, core, {
fromStream,
fromBlob
});
/***/ }),
/***/ 420:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const stream_1 = __webpack_require__(421);
/**
* Converts a Web-API stream into Node stream.Readable class
* Node stream readable: https://nodejs.org/api/stream.html#stream_readable_streams
* Web API readable-stream: https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream
* Node readable stream: https://nodejs.org/api/stream.html#stream_readable_streams
*/
class ReadableWebToNodeStream extends stream_1.Readable {
/**
*
* @param stream ReadableStream: https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream
*/
constructor(stream) {
super();
this.bytesRead = 0;
this.released = false;
this.reader = stream.getReader();
}
/**
* Implementation of readable._read(size).
* When readable._read() is called, if data is available from the resource,
* the implementation should begin pushing that data into the read queue
* https://nodejs.org/api/stream.html#stream_readable_read_size_1
*/
async _read() {
// Should start pushing data into the queue
// Read data from the underlying Web-API-readable-stream
if (this.released) {
this.push(null); // Signal EOF
return;
}
this.pendingRead = this.reader.read();
const data = await this.pendingRead;
// clear the promise before pushing pushing new data to the queue and allow sequential calls to _read()
delete this.pendingRead;
if (data.done || this.released) {
this.push(null); // Signal EOF
}
else {
this.bytesRead += data.value.length;
this.push(data.value); // Push new data to the queue
}
}
/**
* If there is no unresolved read call to Web-API ReadableStream immediately returns;
* otherwise will wait until the read is resolved.
*/
async waitForReadToComplete() {
if (this.pendingRead) {
await this.pendingRead;
}
}
/**
* Close wrapper
*/
async close() {
await this.syncAndRelease();
}
async syncAndRelease() {
this.released = true;
await this.waitForReadToComplete();
await this.reader.releaseLock();
}
}
exports.ReadableWebToNodeStream = ReadableWebToNodeStream;
//# sourceMappingURL=index.js.map
/***/ }),
/***/ 421:
/***/ (function(module, exports, __webpack_require__) {
// 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 = __webpack_require__(422).EventEmitter;
var inherits = __webpack_require__(10);
inherits(Stream, EE);
Stream.Readable = __webpack_require__(423);
Stream.Writable = __webpack_require__(443);
Stream.Duplex = __webpack_require__(444);
Stream.Transform = __webpack_require__(445);
Stream.PassThrough = __webpack_require__(446);
// 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;
};
/***/ }),
/***/ 422:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/* WEBPACK VAR INJECTION */(function(console) {// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
var 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;
// 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;
}
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(5)))
/***/ }),
/***/ 423:
/***/ (function(module, exports, __webpack_require__) {
exports = module.exports = __webpack_require__(424);
exports.Stream = exports;
exports.Readable = exports;
exports.Writable = __webpack_require__(438);
exports.Duplex = __webpack_require__(437);
exports.Transform = __webpack_require__(441);
exports.PassThrough = __webpack_require__(442);
/***/ }),
/***/ 424:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/* WEBPACK VAR INJECTION */(function(global, process) {// 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.
/*<replacement>*/
var pna = __webpack_require__(425);
/*</replacement>*/
module.exports = Readable;
/*<replacement>*/
var isArray = __webpack_require__(426);
/*</replacement>*/
/*<replacement>*/
var Duplex;
/*</replacement>*/
Readable.ReadableState = ReadableState;
/*<replacement>*/
var EE = __webpack_require__(422).EventEmitter;
var EElistenerCount = function (emitter, type) {
return emitter.listeners(type).length;
};
/*</replacement>*/
/*<replacement>*/
var Stream = __webpack_require__(427);
/*</replacement>*/
/*<replacement>*/
var Buffer = __webpack_require__(428).Buffer;
var OurUint8Array = global.Uint8Array || function () {};
function _uint8ArrayToBuffer(chunk) {
return Buffer.from(chunk);
}
function _isUint8Array(obj) {
return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}
/*</replacement>*/
/*<replacement>*/
var util = __webpack_require__(432);
util.inherits = __webpack_require__(10);
/*</replacement>*/
/*<replacement>*/
var debugUtil = __webpack_require__(433);
var debug = void 0;
if (debugUtil && debugUtil.debuglog) {
debug = debugUtil.debuglog('stream');
} else {
debug = function () {};
}
/*</replacement>*/
var BufferList = __webpack_require__(434);
var destroyImpl = __webpack_require__(436);
var StringDecoder;
util.inherits(Readable, Stream);
var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
function prependListener(emitter, event, fn) {
// Sadly this is not cacheable as some libraries bundle their own
// event emitter implementation with them.
if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);
// This is a hack to make sure that our error handler is attached before any
// userland ones. NEVER DO THIS. This is here only because this code needs
// to continue to work with older versions of Node.js that do not include
// the prependListener() method. The goal is to eventually remove this hack.
if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
}
function ReadableState(options, stream) {
Duplex = Duplex || __webpack_require__(437);
options = options || {};
// Duplex streams are both readable and writable, but share
// the same options object.
// However, some cases require setting options to different
// values for the readable and the writable sides of the duplex stream.
// These options can be provided separately as readableXXX and writableXXX.
var isDuplex = stream instanceof Duplex;
// object stream flag. Used to make read(n) ignore n and to
// make all the buffer merging and length checks go away
this.objectMode = !!options.objectMode;
if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
// the point at which it stops calling _read() to fill the buffer
// Note: 0 is a valid value, means "don't call _read preemptively ever"
var hwm = options.highWaterMark;
var readableHwm = options.readableHighWaterMark;
var defaultHwm = this.objectMode ? 16 : 16 * 1024;
if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm;
// cast to ints.
this.highWaterMark = Math.floor(this.highWaterMark);
// A linked list is used to store data chunks instead of an array because the
// linked list can remove elements from the beginning faster than
// array.shift()
this.buffer = new BufferList();
this.length = 0;
this.pipes = null;
this.pipesCount = 0;
this.flowing = null;
this.ended = false;
this.endEmitted = false;
this.reading = false;
// a flag to be able to tell if the event 'readable'/'data' is emitted
// immediately, or on a later tick. We set this to true at first, because
// any actions that shouldn't happen until "later" should generally also
// not happen before the first read call.
this.sync = true;
// whenever we return null, then we set a flag to say
// that we're awaiting a 'readable' event emission.
this.needReadable = false;
this.emittedReadable = false;
this.readableListening = false;
this.resumeScheduled = false;
// has it been destroyed
this.destroyed = false;
// Crypto is kind of old and crusty. Historically, its default string
// encoding is 'binary' so we have to make this configurable.
// Everything else in the universe uses 'utf8', though.
this.defaultEncoding = options.defaultEncoding || 'utf8';
// the number of writers that are awaiting a drain event in .pipe()s
this.awaitDrain = 0;
// if true, a maybeReadMore has been scheduled
this.readingMore = false;
this.decoder = null;
this.encoding = null;
if (options.encoding) {
if (!StringDecoder) StringDecoder = __webpack_require__(440).StringDecoder;
this.decoder = new StringDecoder(options.encoding);
this.encoding = options.encoding;
}
}
function Readable(options) {
Duplex = Duplex || __webpack_require__(437);
if (!(this instanceof Readable)) return new Readable(options);
this._readableState = new ReadableState(options, this);
// legacy
this.readable = true;
if (options) {
if (typeof options.read === 'function') this._read = options.read;
if (typeof options.destroy === 'function') this._destroy = options.destroy;
}
Stream.call(this);
}
Object.defineProperty(Readable.prototype, 'destroyed', {
get: function () {
if (this._readableState === undefined) {
return false;
}
return this._readableState.destroyed;
},
set: function (value) {
// we ignore the value if the stream
// has not been initialized yet
if (!this._readableState) {
return;
}
// backward compatibility, the user is explicitly
// managing destroyed
this._readableState.destroyed = value;
}
});
Readable.prototype.destroy = destroyImpl.destroy;
Readable.prototype._undestroy = destroyImpl.undestroy;
Readable.prototype._destroy = function (err, cb) {
this.push(null);
cb(err);
};
// Manually shove something into the read() buffer.
// This returns true if the highWaterMark has not been hit yet,
// similar to how Writable.write() returns true if you should
// write() some more.
Readable.prototype.push = function (chunk, encoding) {
var state = this._readableState;
var skipChunkCheck;
if (!state.objectMode) {
if (typeof chunk === 'string') {
encoding = encoding || state.defaultEncoding;
if (encoding !== state.encoding) {
chunk = Buffer.from(chunk, encoding);
encoding = '';
}
skipChunkCheck = true;
}
} else {
skipChunkCheck = true;
}
return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
};
// Unshift should *always* be something directly out of read()
Readable.prototype.unshift = function (chunk) {
return readableAddChunk(this, chunk, null, true, false);
};
function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
var state = stream._readableState;
if (chunk === null) {
state.reading = false;
onEofChunk(stream, state);
} else {
var er;
if (!skipChunkCheck) er = chunkInvalid(state, chunk);
if (er) {
stream.emit('error', er);
} else if (state.objectMode || chunk && chunk.length > 0) {
if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
chunk = _uint8ArrayToBuffer(chunk);
}
if (addToFront) {
if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
} else if (state.ended) {
stream.emit('error', new Error('stream.push() after EOF'));
} else {
state.reading = false;
if (state.decoder && !encoding) {
chunk = state.decoder.write(chunk);
if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
} else {
addChunk(stream, state, chunk, false);
}
}
} else if (!addToFront) {
state.reading = false;
}
}
return needMoreData(state);
}
function addChunk(stream, state, chunk, addToFront) {
if (state.flowing && state.length === 0 && !state.sync) {
stream.emit('data', chunk);
stream.read(0);
} else {
// update the buffer info.
state.length += state.objectMode ? 1 : chunk.length;
if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
if (state.needReadable) emitReadable(stream);
}
maybeReadMore(stream, state);
}
function chunkInvalid(state, chunk) {
var er;
if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
er = new TypeError('Invalid non-string/buffer chunk');
}
return er;
}
// if it's past the high water mark, we can push in some more.
// Also, if we have no data yet, we can stand some
// more bytes. This is to work around cases where hwm=0,
// such as the repl. Also, if the push() triggered a
// readable event, and the user called read(largeNumber) such that
// needReadable was set, then we ought to push more, so that another
// 'readable' event will be triggered.
function needMoreData(state) {
return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
}
Readable.prototype.isPaused = function () {
return this._readableState.flowing === false;
};
// backwards compatibility.
Readable.prototype.setEncoding = function (enc) {
if (!StringDecoder) StringDecoder = __webpack_require__(440).StringDecoder;
this._readableState.decoder = new StringDecoder(enc);
this._readableState.encoding = enc;
return this;
};
// Don't raise the hwm > 8MB
var MAX_HWM = 0x800000;
function computeNewHighWaterMark(n) {
if (n >= MAX_HWM) {
n = MAX_HWM;
} else {
// Get the next highest power of 2 to prevent increasing hwm excessively in
// tiny amounts
n--;
n |= n >>> 1;
n |= n >>> 2;
n |= n >>> 4;
n |= n >>> 8;
n |= n >>> 16;
n++;
}
return n;
}
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function howMuchToRead(n, state) {
if (n <= 0 || state.length === 0 && state.ended) return 0;
if (state.objectMode) return 1;
if (n !== n) {
// Only flow one buffer at a time
if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
}
// If we're asking for more than the current hwm, then raise the hwm.
if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
if (n <= state.length) return n;
// Don't have enough
if (!state.ended) {
state.needReadable = true;
return 0;
}
return state.length;
}
// you can override either this method, or the async _read(n) below.
Readable.prototype.read = function (n) {
debug('read', n);
n = parseInt(n, 10);
var state = this._readableState;
var nOrig = n;
if (n !== 0) state.emittedReadable = false;
// if we're doing read(0) to trigger a readable event, but we
// already have a bunch of data in the buffer, then just trigger
// the 'readable' event and move on.
if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
debug('read: emitReadable', state.length, state.ended);
if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
return null;
}
n = howMuchToRead(n, state);
// if we've ended, and we're now clear, then finish it up.
if (n === 0 && state.ended) {
if (state.length === 0) endReadable(this);
return null;
}
// All the actual chunk generation logic needs to be
// *below* the call to _read. The reason is that in certain
// synthetic stream cases, such as passthrough streams, _read
// may be a completely synchronous operation which may change
// the state of the read buffer, providing enough data when
// before there was *not* enough.
//
// So, the steps are:
// 1. Figure out what the state of things will be after we do
// a read from the buffer.
//
// 2. If that resulting state will trigger a _read, then call _read.
// Note that this may be asynchronous, or synchronous. Yes, it is
// deeply ugly to write APIs this way, but that still doesn't mean
// that the Readable class should behave improperly, as streams are
// designed to be sync/async agnostic.
// Take note if the _read call is sync or async (ie, if the read call
// has returned yet), so that we know whether or not it's safe to emit
// 'readable' etc.
//
// 3. Actually pull the requested chunks out of the buffer and return.
// if we need a readable event, then we need to do some reading.
var doRead = state.needReadable;
debug('need readable', doRead);
// if we currently have less than the highWaterMark, then also read some
if (state.length === 0 || state.length - n < state.highWaterMark) {
doRead = true;
debug('length less than watermark', doRead);
}
// however, if we've ended, then there's no point, and if we're already
// reading, then it's unnecessary.
if (state.ended || state.reading) {
doRead = false;
debug('reading or ended', doRead);
} else if (doRead) {
debug('do read');
state.reading = true;
state.sync = true;
// if the length is currently zero, then we *need* a readable event.
if (state.length === 0) state.needReadable = true;
// call internal read method
this._read(state.highWaterMark);
state.sync = false;
// If _read pushed data synchronously, then `reading` will be false,
// and we need to re-evaluate how much data we can return to the user.
if (!state.reading) n = howMuchToRead(nOrig, state);
}
var ret;
if (n > 0) ret = fromList(n, state);else ret = null;
if (ret === null) {
state.needReadable = true;
n = 0;
} else {
state.length -= n;
}
if (state.length === 0) {
// If we have nothing in the buffer, then we want to know
// as soon as we *do* get something into the buffer.
if (!state.ended) state.needReadable = true;
// If we tried to read() past the EOF, then emit end on the next tick.
if (nOrig !== n && state.ended) endReadable(this);
}
if (ret !== null) this.emit('data', ret);
return ret;
};
function onEofChunk(stream, state) {
if (state.ended) return;
if (state.decoder) {
var chunk = state.decoder.end();
if (chunk && chunk.length) {
state.buffer.push(chunk);
state.length += state.objectMode ? 1 : chunk.length;
}
}
state.ended = true;
// emit 'readable' now to make sure it gets picked up.
emitReadable(stream);
}
// Don't emit readable right away in sync mode, because this can trigger
// another read() call => stack overflow. This way, it might trigger
// a nextTick recursion warning, but that's not so bad.
function emitReadable(stream) {
var state = stream._readableState;
state.needReadable = false;
if (!state.emittedReadable) {
debug('emitReadable', state.flowing);
state.emittedReadable = true;
if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream);
}
}
function emitReadable_(stream) {
debug('emit readable');
stream.emit('readable');
flow(stream);
}
// at this point, the user has presumably seen the 'readable' event,
// and called read() to consume some data. that may have triggered
// in turn another _read(n) call, in which case reading = true if
// it's in progress.
// However, if we're not ended, or reading, and the length < hwm,
// then go ahead and try to read some more preemptively.
function maybeReadMore(stream, state) {
if (!state.readingMore) {
state.readingMore = true;
pna.nextTick(maybeReadMore_, stream, state);
}
}
function maybeReadMore_(stream, state) {
var len = state.length;
while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
debug('maybeReadMore read 0');
stream.read(0);
if (len === state.length)
// didn't get any data, stop spinning.
break;else len = state.length;
}
state.readingMore = false;
}
// abstract method. to be overridden in specific implementation classes.
// call cb(er, data) where data is <= n in length.
// for virtual (non-string, non-buffer) streams, "length" is somewhat
// arbitrary, and perhaps not very meaningful.
Readable.prototype._read = function (n) {
this.emit('error', new Error('_read() is not implemented'));
};
Readable.prototype.pipe = function (dest, pipeOpts) {
var src = this;
var state = this._readableState;
switch (state.pipesCount) {
case 0:
state.pipes = dest;
break;
case 1:
state.pipes = [state.pipes, dest];
break;
default:
state.pipes.push(dest);
break;
}
state.pipesCount += 1;
debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
var endFn = doEnd ? onend : unpipe;
if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn);
dest.on('unpipe', onunpipe);
function onunpipe(readable, unpipeInfo) {
debug('onunpipe');
if (readable === src) {
if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
unpipeInfo.hasUnpiped = true;
cleanup();
}
}
}
function onend() {
debug('onend');
dest.end();
}
// when the dest drains, it reduces the awaitDrain counter
// on the source. This would be more elegant with a .once()
// handler in flow(), but adding and removing repeatedly is
// too slow.
var ondrain = pipeOnDrain(src);
dest.on('drain', ondrain);
var cleanedUp = false;
function cleanup() {
debug('cleanup');
// cleanup event handlers once the pipe is broken
dest.removeListener('close', onclose);
dest.removeListener('finish', onfinish);
dest.removeListener('drain', ondrain);
dest.removeListener('error', onerror);
dest.removeListener('unpipe', onunpipe);
src.removeListener('end', onend);
src.removeListener('end', unpipe);
src.removeListener('data', ondata);
cleanedUp = true;
// if the reader is waiting for a drain event from this
// specific writer, then it would cause it to never start
// flowing again.
// So, if this is awaiting a drain, then we just call it now.
// If we don't know, then assume that we are waiting for one.
if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
}
// If the user pushes more data while we're writing to dest then we'll end up
// in ondata again. However, we only want to increase awaitDrain once because
// dest will only emit one 'drain' event for the multiple writes.
// => Introduce a guard on increasing awaitDrain.
var increasedAwaitDrain = false;
src.on('data', ondata);
function ondata(chunk) {
debug('ondata');
increasedAwaitDrain = false;
var ret = dest.write(chunk);
if (false === ret && !increasedAwaitDrain) {
// If the user unpiped during `dest.write()`, it is possible
// to get stuck in a permanently paused state if that write
// also returned false.
// => Check whether `dest` is still a piping destination.
if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
debug('false write response, pause', src._readableState.awaitDrain);
src._readableState.awaitDrain++;
increasedAwaitDrain = true;
}
src.pause();
}
}
// if the dest has an error, then stop piping into it.
// however, don't suppress the throwing behavior for this.
function onerror(er) {
debug('onerror', er);
unpipe();
dest.removeListener('error', onerror);
if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
}
// Make sure our error handler is attached before userland ones.
prependListener(dest, 'error', onerror);
// Both close and finish should trigger unpipe, but only once.
function onclose() {
dest.removeListener('finish', onfinish);
unpipe();
}
dest.once('close', onclose);
function onfinish() {
debug('onfinish');
dest.removeListener('close', onclose);
unpipe();
}
dest.once('finish', onfinish);
function unpipe() {
debug('unpipe');
src.unpipe(dest);
}
// tell the dest that it's being piped to
dest.emit('pipe', src);
// start the flow if it hasn't been started already.
if (!state.flowing) {
debug('pipe resume');
src.resume();
}
return dest;
};
function pipeOnDrain(src) {
return function () {
var state = src._readableState;
debug('pipeOnDrain', state.awaitDrain);
if (state.awaitDrain) state.awaitDrain--;
if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
state.flowing = true;
flow(src);
}
};
}
Readable.prototype.unpipe = function (dest) {
var state = this._readableState;
var unpipeInfo = { hasUnpiped: false };
// if we're not piping anywhere, then do nothing.
if (state.pipesCount === 0) return this;
// just one destination. most common case.
if (state.pipesCount === 1) {
// passed in one, but it's not the right one.
if (dest && dest !== state.pipes) return this;
if (!dest) dest = state.pipes;
// got a match.
state.pipes = null;
state.pipesCount = 0;
state.flowing = false;
if (dest) dest.emit('unpipe', this, unpipeInfo);
return this;
}
// slow case. multiple pipe destinations.
if (!dest) {
// remove all.
var dests = state.pipes;
var len = state.pipesCount;
state.pipes = null;
state.pipesCount = 0;
state.flowing = false;
for (var i = 0; i < len; i++) {
dests[i].emit('unpipe', this, unpipeInfo);
}return this;
}
// try to find the right one.
var index = indexOf(state.pipes, dest);
if (index === -1) return this;
state.pipes.splice(index, 1);
state.pipesCount -= 1;
if (state.pipesCount === 1) state.pipes = state.pipes[0];
dest.emit('unpipe', this, unpipeInfo);
return this;
};
// set up data events if they are asked for
// Ensure readable listeners eventually get something
Readable.prototype.on = function (ev, fn) {
var res = Stream.prototype.on.call(this, ev, fn);
if (ev === 'data') {
// Start flowing on next tick if stream isn't explicitly paused
if (this._readableState.flowing !== false) this.resume();
} else if (ev === 'readable') {
var state = this._readableState;
if (!state.endEmitted && !state.readableListening) {
state.readableListening = state.needReadable = true;
state.emittedReadable = false;
if (!state.reading) {
pna.nextTick(nReadingNextTick, this);
} else if (state.length) {
emitReadable(this);
}
}
}
return res;
};
Readable.prototype.addListener = Readable.prototype.on;
function nReadingNextTick(self) {
debug('readable nexttick read 0');
self.read(0);
}
// pause() and resume() are remnants of the legacy readable stream API
// If the user uses them, then switch into old mode.
Readable.prototype.resume = function () {
var state = this._readableState;
if (!state.flowing) {
debug('resume');
state.flowing = true;
resume(this, state);
}
return this;
};
function resume(stream, state) {
if (!state.resumeScheduled) {
state.resumeScheduled = true;
pna.nextTick(resume_, stream, state);
}
}
function resume_(stream, state) {
if (!state.reading) {
debug('resume read 0');
stream.read(0);
}
state.resumeScheduled = false;
state.awaitDrain = 0;
stream.emit('resume');
flow(stream);
if (state.flowing && !state.reading) stream.read(0);
}
Readable.prototype.pause = function () {
debug('call pause flowing=%j', this._readableState.flowing);
if (false !== this._readableState.flowing) {
debug('pause');
this._readableState.flowing = false;
this.emit('pause');
}
return this;
};
function flow(stream) {
var state = stream._readableState;
debug('flow', state.flowing);
while (state.flowing && stream.read() !== null) {}
}
// wrap an old-style stream as the async data source.
// This is *not* part of the readable stream interface.
// It is an ugly unfortunate mess of history.
Readable.prototype.wrap = function (stream) {
var _this = this;
var state = this._readableState;
var paused = false;
stream.on('end', function () {
debug('wrapped end');
if (state.decoder && !state.ended) {
var chunk = state.decoder.end();
if (chunk && chunk.length) _this.push(chunk);
}
_this.push(null);
});
stream.on('data', function (chunk) {
debug('wrapped data');
if (state.decoder) chunk = state.decoder.write(chunk);
// don't skip over falsy values in objectMode
if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
var ret = _this.push(chunk);
if (!ret) {
paused = true;
stream.pause();
}
});
// proxy all the other methods.
// important when wrapping filters and duplexes.
for (var i in stream) {
if (this[i] === undefined && typeof stream[i] === 'function') {
this[i] = function (method) {
return function () {
return stream[method].apply(stream, arguments);
};
}(i);
}
}
// proxy certain important events.
for (var n = 0; n < kProxyEvents.length; n++) {
stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
}
// when we try to consume some more bytes, simply unpause the
// underlying stream.
this._read = function (n) {
debug('wrapped _read', n);
if (paused) {
paused = false;
stream.resume();
}
};
return this;
};
Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function () {
return this._readableState.highWaterMark;
}
});
// exposed for testing purposes only.
Readable._fromList = fromList;
// Pluck off n bytes from an array of buffers.
// Length is the combined lengths of all the buffers in the list.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function fromList(n, state) {
// nothing buffered
if (state.length === 0) return null;
var ret;
if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
// read it all, truncate the list
if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
state.buffer.clear();
} else {
// read part of list
ret = fromListPartial(n, state.buffer, state.decoder);
}
return ret;
}
// Extracts only enough buffered data to satisfy the amount requested.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function fromListPartial(n, list, hasStrings) {
var ret;
if (n < list.head.data.length) {
// slice is the same for buffers and strings
ret = list.head.data.slice(0, n);
list.head.data = list.head.data.slice(n);
} else if (n === list.head.data.length) {
// first chunk is a perfect match
ret = list.shift();
} else {
// result spans more than one buffer
ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
}
return ret;
}
// Copies a specified amount of characters from the list of buffered data
// chunks.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function copyFromBufferString(n, list) {
var p = list.head;
var c = 1;
var ret = p.data;
n -= ret.length;
while (p = p.next) {
var str = p.data;
var nb = n > str.length ? str.length : n;
if (nb === str.length) ret += str;else ret += str.slice(0, n);
n -= nb;
if (n === 0) {
if (nb === str.length) {
++c;
if (p.next) list.head = p.next;else list.head = list.tail = null;
} else {
list.head = p;
p.data = str.slice(nb);
}
break;
}
++c;
}
list.length -= c;
return ret;
}
// Copies a specified amount of bytes from the list of buffered data chunks.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function copyFromBuffer(n, list) {
var ret = Buffer.allocUnsafe(n);
var p = list.head;
var c = 1;
p.data.copy(ret);
n -= p.data.length;
while (p = p.next) {
var buf = p.data;
var nb = n > buf.length ? buf.length : n;
buf.copy(ret, ret.length - n, 0, nb);
n -= nb;
if (n === 0) {
if (nb === buf.length) {
++c;
if (p.next) list.head = p.next;else list.head = list.tail = null;
} else {
list.head = p;
p.data = buf.slice(nb);
}
break;
}
++c;
}
list.length -= c;
return ret;
}
function endReadable(stream) {
var state = stream._readableState;
// If we get here before consuming all the bytes, then that is a
// bug in node. Should never happen.
if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
if (!state.endEmitted) {
state.ended = true;
pna.nextTick(endReadableNT, state, stream);
}
}
function endReadableNT(state, stream) {
// Check that we didn't get one last unshift.
if (!state.endEmitted && state.length === 0) {
state.endEmitted = true;
stream.readable = false;
stream.emit('end');
}
}
function indexOf(xs, x) {
for (var i = 0, l = xs.length; i < l; i++) {
if (xs[i] === x) return i;
}
return -1;
}
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(6), __webpack_require__(8)))
/***/ }),
/***/ 425:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/* WEBPACK VAR INJECTION */(function(process) {
if (typeof process === 'undefined' ||
!process.version ||
process.version.indexOf('v0.') === 0 ||
process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
module.exports = { nextTick: nextTick };
} else {
module.exports = process
}
function nextTick(fn, arg1, arg2, arg3) {
if (typeof fn !== 'function') {
throw new TypeError('"callback" argument must be a function');
}
var len = arguments.length;
var args, i;
switch (len) {
case 0:
case 1:
return process.nextTick(fn);
case 2:
return process.nextTick(function afterTickOne() {
fn.call(null, arg1);
});
case 3:
return process.nextTick(function afterTickTwo() {
fn.call(null, arg1, arg2);
});
case 4:
return process.nextTick(function afterTickThree() {
fn.call(null, arg1, arg2, arg3);
});
default:
args = new Array(len - 1);
i = 0;
while (i < args.length) {
args[i++] = arguments[i];
}
return process.nextTick(function afterTick() {
fn.apply(null, args);
});
}
}
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(8)))
/***/ }),
/***/ 426:
/***/ (function(module, exports) {
var toString = {}.toString;
module.exports = Array.isArray || function (arr) {
return toString.call(arr) == '[object Array]';
};
/***/ }),
/***/ 427:
/***/ (function(module, exports, __webpack_require__) {
module.exports = __webpack_require__(422).EventEmitter;
/***/ }),
/***/ 428:
/***/ (function(module, exports, __webpack_require__) {
/* eslint-disable node/no-deprecated-api */
var buffer = __webpack_require__(429)
var Buffer = buffer.Buffer
// alternative to using Object.keys for old browsers
function copyProps (src, dst) {
for (var key in src) {
dst[key] = src[key]
}
}
if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
module.exports = buffer
} else {
// Copy properties from require('buffer')
copyProps(buffer, exports)
exports.Buffer = SafeBuffer
}
function SafeBuffer (arg, encodingOrOffset, length) {
return Buffer(arg, encodingOrOffset, length)
}
// Copy static methods from Buffer
copyProps(Buffer, SafeBuffer)
SafeBuffer.from = function (arg, encodingOrOffset, length) {
if (typeof arg === 'number') {
throw new TypeError('Argument must not be a number')
}
return Buffer(arg, encodingOrOffset, length)
}
SafeBuffer.alloc = function (size, fill, encoding) {
if (typeof size !== 'number') {
throw new TypeError('Argument must be a number')
}
var buf = Buffer(size)
if (fill !== undefined) {
if (typeof encoding === 'string') {
buf.fill(fill, encoding)
} else {
buf.fill(fill)
}
} else {
buf.fill(0)
}
return buf
}
SafeBuffer.allocUnsafe = function (size) {
if (typeof size !== 'number') {
throw new TypeError('Argument must be a number')
}
return Buffer(size)
}
SafeBuffer.allocUnsafeSlow = function (size) {
if (typeof size !== 'number') {
throw new TypeError('Argument must be a number')
}
return buffer.SlowBuffer(size)
}
/***/ }),
/***/ 429:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/* WEBPACK VAR INJECTION */(function(global) {/*!
* The buffer module from node.js, for the browser.
*
* @author Feross Aboukhadijeh <http://feross.org>
* @license MIT
*/
/* eslint-disable no-proto */
var base64 = __webpack_require__(430)
var ieee754 = __webpack_require__(431)
var isArray = __webpack_require__(426)
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, 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
if (Buffer.TYPED_ARRAY_SUPPORT) {
newBuf = this.subarray(start, end)
newBuf.__proto__ = Buffer.prototype
} else {
var sliceLen = end - start
newBuf = new Buffer(sliceLen, undefined)
for (var i = 0; i < sliceLen; ++i) {
newBuf[i] = this[i + start]
}
}
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) {
if (!noAssert) checkOffset(offset, 1, this.length)
return this[offset]
}
Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
return this[offset] | (this[offset + 1] << 8)
}
Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
return (this[offset] << 8) | this[offset + 1]
}
Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
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) {
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) {
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) {
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) {
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) {
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) {
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) {
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, true, 23, 4)
}
Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, false, 23, 4)
}
Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 8, this.length)
return ieee754.read(this, offset, true, 52, 8)
}
Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
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)
if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
this[offset] = (value & 0xff)
return offset + 1
}
function objectWriteUInt16 (buf, value, offset, littleEndian) {
if (value < 0) value = 0xffff + value + 1
for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {
buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
(littleEndian ? i : 1 - i) * 8
}
}
Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
} else {
objectWriteUInt16(this, value, offset, true)
}
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)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 8)
this[offset + 1] = (value & 0xff)
} else {
objectWriteUInt16(this, value, offset, false)
}
return offset + 2
}
function objectWriteUInt32 (buf, value, offset, littleEndian) {
if (value < 0) value = 0xffffffff + value + 1
for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {
buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
}
}
Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset + 3] = (value >>> 24)
this[offset + 2] = (value >>> 16)
this[offset + 1] = (value >>> 8)
this[offset] = (value & 0xff)
} else {
objectWriteUInt32(this, value, offset, true)
}
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)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
this[offset + 3] = (value & 0xff)
} else {
objectWriteUInt32(this, value, offset, false)
}
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 (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
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)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
} else {
objectWriteUInt16(this, value, offset, true)
}
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)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 8)
this[offset + 1] = (value & 0xff)
} else {
objectWriteUInt16(this, value, offset, false)
}
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)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
this[offset + 2] = (value >>> 16)
this[offset + 3] = (value >>> 24)
} else {
objectWriteUInt32(this, value, offset, true)
}
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
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
this[offset + 3] = (value & 0xff)
} else {
objectWriteUInt32(this, value, offset, false)
}
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) {
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) {
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 (!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('sourceStart out of bounds')
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
var i
if (this === target && start < targetStart && targetStart < end) {
// descending copy from end
for (i = len - 1; i >= 0; --i) {
target[i + targetStart] = this[i + start]
}
} else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
// ascending copy from start
for (i = 0; i < len; ++i) {
target[i + targetStart] = this[i + start]
}
} else {
Uint8Array.prototype.set.call(
target,
this.subarray(start, start + len),
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 (val.length === 1) {
var code = val.charCodeAt(0)
if (code < 256) {
val = code
}
}
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)
}
} 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
: utf8ToBytes(new Buffer(val, encoding).toString())
var len = bytes.length
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 strips out invalid characters like \n and \t from the string, base64-js does not
str = stringtrim(str).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 stringtrim (str) {
if (str.trim) return str.trim()
return str.replace(/^\s+|\s+$/g, '')
}
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
}
function isnan (val) {
return val !== val // eslint-disable-line no-self-compare
}
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(6)))
/***/ }),
/***/ 430:
/***/ (function(module, exports, __webpack_require__) {
"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('')
}
/***/ }),
/***/ 431:
/***/ (function(module, exports) {
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
var e, m
var eLen = (nBytes * 8) - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var nBits = -7
var i = isLE ? (nBytes - 1) : 0
var d = isLE ? -1 : 1
var s = buffer[offset + i]
i += d
e = s & ((1 << (-nBits)) - 1)
s >>= (-nBits)
nBits += eLen
for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}
m = e & ((1 << (-nBits)) - 1)
e >>= (-nBits)
nBits += mLen
for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}
if (e === 0) {
e = 1 - eBias
} else if (e === eMax) {
return m ? NaN : ((s ? -1 : 1) * Infinity)
} else {
m = m + Math.pow(2, mLen)
e = e - eBias
}
return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}
exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
var e, m, c
var eLen = (nBytes * 8) - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
var i = isLE ? 0 : (nBytes - 1)
var d = isLE ? 1 : -1
var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
value = Math.abs(value)
if (isNaN(value) || value === Infinity) {
m = isNaN(value) ? 1 : 0
e = eMax
} else {
e = Math.floor(Math.log(value) / Math.LN2)
if (value * (c = Math.pow(2, -e)) < 1) {
e--
c *= 2
}
if (e + eBias >= 1) {
value += rt / c
} else {
value += rt * Math.pow(2, 1 - eBias)
}
if (value * c >= 2) {
e++
c /= 2
}
if (e + eBias >= eMax) {
m = 0
e = eMax
} else if (e + eBias >= 1) {
m = ((value * c) - 1) * Math.pow(2, mLen)
e = e + eBias
} else {
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
e = 0
}
}
for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
e = (e << mLen) | m
eLen += mLen
for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
buffer[offset + i - d] |= s * 128
}
/***/ }),
/***/ 432:
/***/ (function(module, exports, __webpack_require__) {
/* WEBPACK VAR INJECTION */(function(Buffer) {// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(arg) {
if (Array.isArray) {
return Array.isArray(arg);
}
return objectToString(arg) === '[object Array]';
}
exports.isArray = isArray;
function isBoolean(arg) {
return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;
function isNull(arg) {
return arg === null;
}
exports.isNull = isNull;
function isNullOrUndefined(arg) {
return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;
function isNumber(arg) {
return typeof arg === 'number';
}
exports.isNumber = isNumber;
function isString(arg) {
return typeof arg === 'string';
}
exports.isString = isString;
function isSymbol(arg) {
return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;
function isUndefined(arg) {
return arg === void 0;
}
exports.isUndefined = isUndefined;
function isRegExp(re) {
return objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;
function isObject(arg) {
return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;
function isDate(d) {
return objectToString(d) === '[object Date]';
}
exports.isDate = isDate;
function isError(e) {
return (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;
function isFunction(arg) {
return typeof arg === 'function';
}
exports.isFunction = isFunction;
function isPrimitive(arg) {
return arg === null ||
typeof arg === 'boolean' ||
typeof arg === 'number' ||
typeof arg === 'string' ||
typeof arg === 'symbol' || // ES6 symbol
typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;
exports.isBuffer = Buffer.isBuffer;
function objectToString(o) {
return Object.prototype.toString.call(o);
}
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(429).Buffer))
/***/ }),
/***/ 433:
/***/ (function(module, exports) {
/* (ignored) */
/***/ }),
/***/ 434:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var Buffer = __webpack_require__(428).Buffer;
var util = __webpack_require__(435);
function copyBuffer(src, target, offset) {
src.copy(target, offset);
}
module.exports = function () {
function BufferList() {
_classCallCheck(this, BufferList);
this.head = null;
this.tail = null;
this.length = 0;
}
BufferList.prototype.push = function push(v) {
var entry = { data: v, next: null };
if (this.length > 0) this.tail.next = entry;else this.head = entry;
this.tail = entry;
++this.length;
};
BufferList.prototype.unshift = function unshift(v) {
var entry = { data: v, next: this.head };
if (this.length === 0) this.tail = entry;
this.head = entry;
++this.length;
};
BufferList.prototype.shift = function shift() {
if (this.length === 0) return;
var ret = this.head.data;
if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
--this.length;
return ret;
};
BufferList.prototype.clear = function clear() {
this.head = this.tail = null;
this.length = 0;
};
BufferList.prototype.join = function join(s) {
if (this.length === 0) return '';
var p = this.head;
var ret = '' + p.data;
while (p = p.next) {
ret += s + p.data;
}return ret;
};
BufferList.prototype.concat = function concat(n) {
if (this.length === 0) return Buffer.alloc(0);
if (this.length === 1) return this.head.data;
var ret = Buffer.allocUnsafe(n >>> 0);
var p = this.head;
var i = 0;
while (p) {
copyBuffer(p.data, ret, i);
i += p.data.length;
p = p.next;
}
return ret;
};
return BufferList;
}();
if (util && util.inspect && util.inspect.custom) {
module.exports.prototype[util.inspect.custom] = function () {
var obj = util.inspect({ length: this.length });
return this.constructor.name + ' ' + obj;
};
}
/***/ }),
/***/ 435:
/***/ (function(module, exports) {
/* (ignored) */
/***/ }),
/***/ 436:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/*<replacement>*/
var pna = __webpack_require__(425);
/*</replacement>*/
// undocumented cb() API, needed for core, not for public API
function destroy(err, cb) {
var _this = this;
var readableDestroyed = this._readableState && this._readableState.destroyed;
var writableDestroyed = this._writableState && this._writableState.destroyed;
if (readableDestroyed || writableDestroyed) {
if (cb) {
cb(err);
} else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
pna.nextTick(emitErrorNT, this, err);
}
return this;
}
// we set destroyed to true before firing error callbacks in order
// to make it re-entrance safe in case destroy() is called within callbacks
if (this._readableState) {
this._readableState.destroyed = true;
}
// if this is a duplex stream mark the writable part as destroyed as well
if (this._writableState) {
this._writableState.destroyed = true;
}
this._destroy(err || null, function (err) {
if (!cb && err) {
pna.nextTick(emitErrorNT, _this, err);
if (_this._writableState) {
_this._writableState.errorEmitted = true;
}
} else if (cb) {
cb(err);
}
});
return this;
}
function undestroy() {
if (this._readableState) {
this._readableState.destroyed = false;
this._readableState.reading = false;
this._readableState.ended = false;
this._readableState.endEmitted = false;
}
if (this._writableState) {
this._writableState.destroyed = false;
this._writableState.ended = false;
this._writableState.ending = false;
this._writableState.finished = false;
this._writableState.errorEmitted = false;
}
}
function emitErrorNT(self, err) {
self.emit('error', err);
}
module.exports = {
destroy: destroy,
undestroy: undestroy
};
/***/ }),
/***/ 437:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
// 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.
/*<replacement>*/
var pna = __webpack_require__(425);
/*</replacement>*/
/*<replacement>*/
var objectKeys = Object.keys || function (obj) {
var keys = [];
for (var key in obj) {
keys.push(key);
}return keys;
};
/*</replacement>*/
module.exports = Duplex;
/*<replacement>*/
var util = __webpack_require__(432);
util.inherits = __webpack_require__(10);
/*</replacement>*/
var Readable = __webpack_require__(424);
var Writable = __webpack_require__(438);
util.inherits(Duplex, Readable);
{
// avoid scope creep, the keys array can then be collected
var keys = objectKeys(Writable.prototype);
for (var v = 0; v < keys.length; v++) {
var method = keys[v];
if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
}
}
function Duplex(options) {
if (!(this instanceof Duplex)) return new Duplex(options);
Readable.call(this, options);
Writable.call(this, options);
if (options && options.readable === false) this.readable = false;
if (options && options.writable === false) this.writable = false;
this.allowHalfOpen = true;
if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
this.once('end', onend);
}
Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function () {
return this._writableState.highWaterMark;
}
});
// the no-half-open enforcer
function onend() {
// if we allow half-open state, or if the writable side ended,
// then we're ok.
if (this.allowHalfOpen || this._writableState.ended) return;
// no more data can be written.
// But allow more writes to happen in this tick.
pna.nextTick(onEndNT, this);
}
function onEndNT(self) {
self.end();
}
Object.defineProperty(Duplex.prototype, 'destroyed', {
get: function () {
if (this._readableState === undefined || this._writableState === undefined) {
return false;
}
return this._readableState.destroyed && this._writableState.destroyed;
},
set: function (value) {
// we ignore the value if the stream
// has not been initialized yet
if (this._readableState === undefined || this._writableState === undefined) {
return;
}
// backward compatibility, the user is explicitly
// managing destroyed
this._readableState.destroyed = value;
this._writableState.destroyed = value;
}
});
Duplex.prototype._destroy = function (err, cb) {
this.push(null);
this.end();
pna.nextTick(cb, err);
};
/***/ }),
/***/ 438:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/* WEBPACK VAR INJECTION */(function(process, setImmediate, global) {// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// A bit simpler than readable streams.
// Implement an async ._write(chunk, encoding, cb), and it'll handle all
// the drain event emission and buffering.
/*<replacement>*/
var pna = __webpack_require__(425);
/*</replacement>*/
module.exports = Writable;
/* <replacement> */
function WriteReq(chunk, encoding, cb) {
this.chunk = chunk;
this.encoding = encoding;
this.callback = cb;
this.next = null;
}
// It seems a linked list but it is not
// there will be only 2 of these for each stream
function CorkedRequest(state) {
var _this = this;
this.next = null;
this.entry = null;
this.finish = function () {
onCorkedFinish(_this, state);
};
}
/* </replacement> */
/*<replacement>*/
var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;
/*</replacement>*/
/*<replacement>*/
var Duplex;
/*</replacement>*/
Writable.WritableState = WritableState;
/*<replacement>*/
var util = __webpack_require__(432);
util.inherits = __webpack_require__(10);
/*</replacement>*/
/*<replacement>*/
var internalUtil = {
deprecate: __webpack_require__(439)
};
/*</replacement>*/
/*<replacement>*/
var Stream = __webpack_require__(427);
/*</replacement>*/
/*<replacement>*/
var Buffer = __webpack_require__(428).Buffer;
var OurUint8Array = global.Uint8Array || function () {};
function _uint8ArrayToBuffer(chunk) {
return Buffer.from(chunk);
}
function _isUint8Array(obj) {
return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}
/*</replacement>*/
var destroyImpl = __webpack_require__(436);
util.inherits(Writable, Stream);
function nop() {}
function WritableState(options, stream) {
Duplex = Duplex || __webpack_require__(437);
options = options || {};
// Duplex streams are both readable and writable, but share
// the same options object.
// However, some cases require setting options to different
// values for the readable and the writable sides of the duplex stream.
// These options can be provided separately as readableXXX and writableXXX.
var isDuplex = stream instanceof Duplex;
// object stream flag to indicate whether or not this stream
// contains buffers or objects.
this.objectMode = !!options.objectMode;
if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
// the point at which write() starts returning false
// Note: 0 is a valid value, means that we always return false if
// the entire buffer is not flushed immediately on write()
var hwm = options.highWaterMark;
var writableHwm = options.writableHighWaterMark;
var defaultHwm = this.objectMode ? 16 : 16 * 1024;
if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;
// cast to ints.
this.highWaterMark = Math.floor(this.highWaterMark);
// if _final has been called
this.finalCalled = false;
// drain event flag.
this.needDrain = false;
// at the start of calling end()
this.ending = false;
// when end() has been called, and returned
this.ended = false;
// when 'finish' is emitted
this.finished = false;
// has it been destroyed
this.destroyed = false;
// should we decode strings into buffers before passing to _write?
// this is here so that some node-core streams can optimize string
// handling at a lower level.
var noDecode = options.decodeStrings === false;
this.decodeStrings = !noDecode;
// Crypto is kind of old and crusty. Historically, its default string
// encoding is 'binary' so we have to make this configurable.
// Everything else in the universe uses 'utf8', though.
this.defaultEncoding = options.defaultEncoding || 'utf8';
// not an actual buffer we keep track of, but a measurement
// of how much we're waiting to get pushed to some underlying
// socket or file.
this.length = 0;
// a flag to see when we're in the middle of a write.
this.writing = false;
// when true all writes will be buffered until .uncork() call
this.corked = 0;
// a flag to be able to tell if the onwrite cb is called immediately,
// or on a later tick. We set this to true at first, because any
// actions that shouldn't happen until "later" should generally also
// not happen before the first write call.
this.sync = true;
// a flag to know if we're processing previously buffered items, which
// may call the _write() callback in the same tick, so that we don't
// end up in an overlapped onwrite situation.
this.bufferProcessing = false;
// the callback that's passed to _write(chunk,cb)
this.onwrite = function (er) {
onwrite(stream, er);
};
// the callback that the user supplies to write(chunk,encoding,cb)
this.writecb = null;
// the amount that is being written when _write is called.
this.writelen = 0;
this.bufferedRequest = null;
this.lastBufferedRequest = null;
// number of pending user-supplied write callbacks
// this must be 0 before 'finish' can be emitted
this.pendingcb = 0;
// emit prefinish if the only thing we're waiting for is _write cbs
// This is relevant for synchronous Transform streams
this.prefinished = false;
// True if the error was already emitted and should not be thrown again
this.errorEmitted = false;
// count buffered requests
this.bufferedRequestCount = 0;
// allocate the first CorkedRequest, there is always
// one allocated and free to use, and we maintain at most two
this.corkedRequestsFree = new CorkedRequest(this);
}
WritableState.prototype.getBuffer = function getBuffer() {
var current = this.bufferedRequest;
var out = [];
while (current) {
out.push(current);
current = current.next;
}
return out;
};
(function () {
try {
Object.defineProperty(WritableState.prototype, 'buffer', {
get: internalUtil.deprecate(function () {
return this.getBuffer();
}, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
});
} catch (_) {}
})();
// Test _writableState for inheritance to account for Duplex streams,
// whose prototype chain only points to Readable.
var realHasInstance;
if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
realHasInstance = Function.prototype[Symbol.hasInstance];
Object.defineProperty(Writable, Symbol.hasInstance, {
value: function (object) {
if (realHasInstance.call(this, object)) return true;
if (this !== Writable) return false;
return object && object._writableState instanceof WritableState;
}
});
} else {
realHasInstance = function (object) {
return object instanceof this;
};
}
function Writable(options) {
Duplex = Duplex || __webpack_require__(437);
// Writable ctor is applied to Duplexes, too.
// `realHasInstance` is necessary because using plain `instanceof`
// would return false, as no `_writableState` property is attached.
// Trying to use the custom `instanceof` for Writable here will also break the
// Node.js LazyTransform implementation, which has a non-trivial getter for
// `_writableState` that would lead to infinite recursion.
if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
return new Writable(options);
}
this._writableState = new WritableState(options, this);
// legacy.
this.writable = true;
if (options) {
if (typeof options.write === 'function') this._write = options.write;
if (typeof options.writev === 'function') this._writev = options.writev;
if (typeof options.destroy === 'function') this._destroy = options.destroy;
if (typeof options.final === 'function') this._final = options.final;
}
Stream.call(this);
}
// Otherwise people can pipe Writable streams, which is just wrong.
Writable.prototype.pipe = function () {
this.emit('error', new Error('Cannot pipe, not readable'));
};
function writeAfterEnd(stream, cb) {
var er = new Error('write after end');
// TODO: defer error events consistently everywhere, not just the cb
stream.emit('error', er);
pna.nextTick(cb, er);
}
// Checks that a user-supplied chunk is valid, especially for the particular
// mode the stream is in. Currently this means that `null` is never accepted
// and undefined/non-string values are only allowed in object mode.
function validChunk(stream, state, chunk, cb) {
var valid = true;
var er = false;
if (chunk === null) {
er = new TypeError('May not write null values to stream');
} else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
er = new TypeError('Invalid non-string/buffer chunk');
}
if (er) {
stream.emit('error', er);
pna.nextTick(cb, er);
valid = false;
}
return valid;
}
Writable.prototype.write = function (chunk, encoding, cb) {
var state = this._writableState;
var ret = false;
var isBuf = !state.objectMode && _isUint8Array(chunk);
if (isBuf && !Buffer.isBuffer(chunk)) {
chunk = _uint8ArrayToBuffer(chunk);
}
if (typeof encoding === 'function') {
cb = encoding;
encoding = null;
}
if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
if (typeof cb !== 'function') cb = nop;
if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
state.pendingcb++;
ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
}
return ret;
};
Writable.prototype.cork = function () {
var state = this._writableState;
state.corked++;
};
Writable.prototype.uncork = function () {
var state = this._writableState;
if (state.corked) {
state.corked--;
if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
}
};
Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
// node::ParseEncoding() requires lower case.
if (typeof encoding === 'string') encoding = encoding.toLowerCase();
if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
this._writableState.defaultEncoding = encoding;
return this;
};
function decodeChunk(state, chunk, encoding) {
if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
chunk = Buffer.from(chunk, encoding);
}
return chunk;
}
Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function () {
return this._writableState.highWaterMark;
}
});
// if we're already writing something, then just put this
// in the queue, and wait our turn. Otherwise, call _write
// If we return false, then we need a drain event, so set that flag.
function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
if (!isBuf) {
var newChunk = decodeChunk(state, chunk, encoding);
if (chunk !== newChunk) {
isBuf = true;
encoding = 'buffer';
chunk = newChunk;
}
}
var len = state.objectMode ? 1 : chunk.length;
state.length += len;
var ret = state.length < state.highWaterMark;
// we must ensure that previous needDrain will not be reset to false.
if (!ret) state.needDrain = true;
if (state.writing || state.corked) {
var last = state.lastBufferedRequest;
state.lastBufferedRequest = {
chunk: chunk,
encoding: encoding,
isBuf: isBuf,
callback: cb,
next: null
};
if (last) {
last.next = state.lastBufferedRequest;
} else {
state.bufferedRequest = state.lastBufferedRequest;
}
state.bufferedRequestCount += 1;
} else {
doWrite(stream, state, false, len, chunk, encoding, cb);
}
return ret;
}
function doWrite(stream, state, writev, len, chunk, encoding, cb) {
state.writelen = len;
state.writecb = cb;
state.writing = true;
state.sync = true;
if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
state.sync = false;
}
function onwriteError(stream, state, sync, er, cb) {
--state.pendingcb;
if (sync) {
// defer the callback if we are being called synchronously
// to avoid piling up things on the stack
pna.nextTick(cb, er);
// this can emit finish, and it will always happen
// after error
pna.nextTick(finishMaybe, stream, state);
stream._writableState.errorEmitted = true;
stream.emit('error', er);
} else {
// the caller expect this to happen before if
// it is async
cb(er);
stream._writableState.errorEmitted = true;
stream.emit('error', er);
// this can emit finish, but finish must
// always follow error
finishMaybe(stream, state);
}
}
function onwriteStateUpdate(state) {
state.writing = false;
state.writecb = null;
state.length -= state.writelen;
state.writelen = 0;
}
function onwrite(stream, er) {
var state = stream._writableState;
var sync = state.sync;
var cb = state.writecb;
onwriteStateUpdate(state);
if (er) onwriteError(stream, state, sync, er, cb);else {
// Check if we're actually ready to finish, but don't emit yet
var finished = needFinish(state);
if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
clearBuffer(stream, state);
}
if (sync) {
/*<replacement>*/
asyncWrite(afterWrite, stream, state, finished, cb);
/*</replacement>*/
} else {
afterWrite(stream, state, finished, cb);
}
}
}
function afterWrite(stream, state, finished, cb) {
if (!finished) onwriteDrain(stream, state);
state.pendingcb--;
cb();
finishMaybe(stream, state);
}
// Must force callback to be called on nextTick, so that we don't
// emit 'drain' before the write() consumer gets the 'false' return
// value, and has a chance to attach a 'drain' listener.
function onwriteDrain(stream, state) {
if (state.length === 0 && state.needDrain) {
state.needDrain = false;
stream.emit('drain');
}
}
// if there's something in the buffer waiting, then process it
function clearBuffer(stream, state) {
state.bufferProcessing = true;
var entry = state.bufferedRequest;
if (stream._writev && entry && entry.next) {
// Fast case, write everything using _writev()
var l = state.bufferedRequestCount;
var buffer = new Array(l);
var holder = state.corkedRequestsFree;
holder.entry = entry;
var count = 0;
var allBuffers = true;
while (entry) {
buffer[count] = entry;
if (!entry.isBuf) allBuffers = false;
entry = entry.next;
count += 1;
}
buffer.allBuffers = allBuffers;
doWrite(stream, state, true, state.length, buffer, '', holder.finish);
// doWrite is almost always async, defer these to save a bit of time
// as the hot path ends with doWrite
state.pendingcb++;
state.lastBufferedRequest = null;
if (holder.next) {
state.corkedRequestsFree = holder.next;
holder.next = null;
} else {
state.corkedRequestsFree = new CorkedRequest(state);
}
state.bufferedRequestCount = 0;
} else {
// Slow case, write chunks one-by-one
while (entry) {
var chunk = entry.chunk;
var encoding = entry.encoding;
var cb = entry.callback;
var len = state.objectMode ? 1 : chunk.length;
doWrite(stream, state, false, len, chunk, encoding, cb);
entry = entry.next;
state.bufferedRequestCount--;
// if we didn't call the onwrite immediately, then
// it means that we need to wait until it does.
// also, that means that the chunk and cb are currently
// being processed, so move the buffer counter past them.
if (state.writing) {
break;
}
}
if (entry === null) state.lastBufferedRequest = null;
}
state.bufferedRequest = entry;
state.bufferProcessing = false;
}
Writable.prototype._write = function (chunk, encoding, cb) {
cb(new Error('_write() is not implemented'));
};
Writable.prototype._writev = null;
Writable.prototype.end = function (chunk, encoding, cb) {
var state = this._writableState;
if (typeof chunk === 'function') {
cb = chunk;
chunk = null;
encoding = null;
} else if (typeof encoding === 'function') {
cb = encoding;
encoding = null;
}
if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
// .end() fully uncorks
if (state.corked) {
state.corked = 1;
this.uncork();
}
// ignore unnecessary end() calls.
if (!state.ending && !state.finished) endWritable(this, state, cb);
};
function needFinish(state) {
return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
}
function callFinal(stream, state) {
stream._final(function (err) {
state.pendingcb--;
if (err) {
stream.emit('error', err);
}
state.prefinished = true;
stream.emit('prefinish');
finishMaybe(stream, state);
});
}
function prefinish(stream, state) {
if (!state.prefinished && !state.finalCalled) {
if (typeof stream._final === 'function') {
state.pendingcb++;
state.finalCalled = true;
pna.nextTick(callFinal, stream, state);
} else {
state.prefinished = true;
stream.emit('prefinish');
}
}
}
function finishMaybe(stream, state) {
var need = needFinish(state);
if (need) {
prefinish(stream, state);
if (state.pendingcb === 0) {
state.finished = true;
stream.emit('finish');
}
}
return need;
}
function endWritable(stream, state, cb) {
state.ending = true;
finishMaybe(stream, state);
if (cb) {
if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);
}
state.ended = true;
stream.writable = false;
}
function onCorkedFinish(corkReq, state, err) {
var entry = corkReq.entry;
corkReq.entry = null;
while (entry) {
var cb = entry.callback;
state.pendingcb--;
cb(err);
entry = entry.next;
}
if (state.corkedRequestsFree) {
state.corkedRequestsFree.next = corkReq;
} else {
state.corkedRequestsFree = corkReq;
}
}
Object.defineProperty(Writable.prototype, 'destroyed', {
get: function () {
if (this._writableState === undefined) {
return false;
}
return this._writableState.destroyed;
},
set: function (value) {
// we ignore the value if the stream
// has not been initialized yet
if (!this._writableState) {
return;
}
// backward compatibility, the user is explicitly
// managing destroyed
this._writableState.destroyed = value;
}
});
Writable.prototype.destroy = destroyImpl.destroy;
Writable.prototype._undestroy = destroyImpl.undestroy;
Writable.prototype._destroy = function (err, cb) {
this.end();
cb(err);
};
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(8), __webpack_require__(108).setImmediate, __webpack_require__(6)))
/***/ }),
/***/ 439:
/***/ (function(module, exports, __webpack_require__) {
/**
* For Node.js, simply re-export the core `util.deprecate` function.
*/
module.exports = __webpack_require__(7).deprecate;
/***/ }),
/***/ 440:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
// 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.
/*<replacement>*/
var Buffer = __webpack_require__(428).Buffer;
/*</replacement>*/
var isEncoding = Buffer.isEncoding || function (encoding) {
encoding = '' + encoding;
switch (encoding && encoding.toLowerCase()) {
case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
return true;
default:
return false;
}
};
function _normalizeEncoding(enc) {
if (!enc) return 'utf8';
var retried;
while (true) {
switch (enc) {
case 'utf8':
case 'utf-8':
return 'utf8';
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return 'utf16le';
case 'latin1':
case 'binary':
return 'latin1';
case 'base64':
case 'ascii':
case 'hex':
return enc;
default:
if (retried) return; // undefined
enc = ('' + enc).toLowerCase();
retried = true;
}
}
};
// Do not cache `Buffer.isEncoding` when checking encoding names as some
// modules monkey-patch it to support additional encodings
function normalizeEncoding(enc) {
var nenc = _normalizeEncoding(enc);
if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
return nenc || enc;
}
// StringDecoder provides an interface for efficiently splitting a series of
// buffers into a series of JS strings without breaking apart multi-byte
// characters.
exports.StringDecoder = StringDecoder;
function StringDecoder(encoding) {
this.encoding = normalizeEncoding(encoding);
var nb;
switch (this.encoding) {
case 'utf16le':
this.text = utf16Text;
this.end = utf16End;
nb = 4;
break;
case 'utf8':
this.fillLast = utf8FillLast;
nb = 4;
break;
case 'base64':
this.text = base64Text;
this.end = base64End;
nb = 3;
break;
default:
this.write = simpleWrite;
this.end = simpleEnd;
return;
}
this.lastNeed = 0;
this.lastTotal = 0;
this.lastChar = Buffer.allocUnsafe(nb);
}
StringDecoder.prototype.write = function (buf) {
if (buf.length === 0) return '';
var r;
var i;
if (this.lastNeed) {
r = this.fillLast(buf);
if (r === undefined) return '';
i = this.lastNeed;
this.lastNeed = 0;
} else {
i = 0;
}
if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
return r || '';
};
StringDecoder.prototype.end = utf8End;
// Returns only complete characters in a Buffer
StringDecoder.prototype.text = utf8Text;
// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
StringDecoder.prototype.fillLast = function (buf) {
if (this.lastNeed <= buf.length) {
buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
return this.lastChar.toString(this.encoding, 0, this.lastTotal);
}
buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
this.lastNeed -= buf.length;
};
// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
// continuation byte. If an invalid byte is detected, -2 is returned.
function utf8CheckByte(byte) {
if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
return byte >> 6 === 0x02 ? -1 : -2;
}
// Checks at most 3 bytes at the end of a Buffer in order to detect an
// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
// needed to complete the UTF-8 character (if applicable) are returned.
function utf8CheckIncomplete(self, buf, i) {
var j = buf.length - 1;
if (j < i) return 0;
var nb = utf8CheckByte(buf[j]);
if (nb >= 0) {
if (nb > 0) self.lastNeed = nb - 1;
return nb;
}
if (--j < i || nb === -2) return 0;
nb = utf8CheckByte(buf[j]);
if (nb >= 0) {
if (nb > 0) self.lastNeed = nb - 2;
return nb;
}
if (--j < i || nb === -2) return 0;
nb = utf8CheckByte(buf[j]);
if (nb >= 0) {
if (nb > 0) {
if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
}
return nb;
}
return 0;
}
// Validates as many continuation bytes for a multi-byte UTF-8 character as
// needed or are available. If we see a non-continuation byte where we expect
// one, we "replace" the validated continuation bytes we've seen so far with
// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
// behavior. The continuation byte check is included three times in the case
// where all of the continuation bytes for a character exist in the same buffer.
// It is also done this way as a slight performance increase instead of using a
// loop.
function utf8CheckExtraBytes(self, buf, p) {
if ((buf[0] & 0xC0) !== 0x80) {
self.lastNeed = 0;
return '\ufffd';
}
if (self.lastNeed > 1 && buf.length > 1) {
if ((buf[1] & 0xC0) !== 0x80) {
self.lastNeed = 1;
return '\ufffd';
}
if (self.lastNeed > 2 && buf.length > 2) {
if ((buf[2] & 0xC0) !== 0x80) {
self.lastNeed = 2;
return '\ufffd';
}
}
}
}
// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
function utf8FillLast(buf) {
var p = this.lastTotal - this.lastNeed;
var r = utf8CheckExtraBytes(this, buf, p);
if (r !== undefined) return r;
if (this.lastNeed <= buf.length) {
buf.copy(this.lastChar, p, 0, this.lastNeed);
return this.lastChar.toString(this.encoding, 0, this.lastTotal);
}
buf.copy(this.lastChar, p, 0, buf.length);
this.lastNeed -= buf.length;
}
// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
// partial character, the character's bytes are buffered until the required
// number of bytes are available.
function utf8Text(buf, i) {
var total = utf8CheckIncomplete(this, buf, i);
if (!this.lastNeed) return buf.toString('utf8', i);
this.lastTotal = total;
var end = buf.length - (total - this.lastNeed);
buf.copy(this.lastChar, 0, end);
return buf.toString('utf8', i, end);
}
// For UTF-8, a replacement character is added when ending on a partial
// character.
function utf8End(buf) {
var r = buf && buf.length ? this.write(buf) : '';
if (this.lastNeed) return r + '\ufffd';
return r;
}
// UTF-16LE typically needs two bytes per character, but even if we have an even
// number of bytes available, we need to check if we end on a leading/high
// surrogate. In that case, we need to wait for the next two bytes in order to
// decode the last character properly.
function utf16Text(buf, i) {
if ((buf.length - i) % 2 === 0) {
var r = buf.toString('utf16le', i);
if (r) {
var c = r.charCodeAt(r.length - 1);
if (c >= 0xD800 && c <= 0xDBFF) {
this.lastNeed = 2;
this.lastTotal = 4;
this.lastChar[0] = buf[buf.length - 2];
this.lastChar[1] = buf[buf.length - 1];
return r.slice(0, -1);
}
}
return r;
}
this.lastNeed = 1;
this.lastTotal = 2;
this.lastChar[0] = buf[buf.length - 1];
return buf.toString('utf16le', i, buf.length - 1);
}
// For UTF-16LE we do not explicitly append special replacement characters if we
// end on a partial character, we simply let v8 handle that.
function utf16End(buf) {
var r = buf && buf.length ? this.write(buf) : '';
if (this.lastNeed) {
var end = this.lastTotal - this.lastNeed;
return r + this.lastChar.toString('utf16le', 0, end);
}
return r;
}
function base64Text(buf, i) {
var n = (buf.length - i) % 3;
if (n === 0) return buf.toString('base64', i);
this.lastNeed = 3 - n;
this.lastTotal = 3;
if (n === 1) {
this.lastChar[0] = buf[buf.length - 1];
} else {
this.lastChar[0] = buf[buf.length - 2];
this.lastChar[1] = buf[buf.length - 1];
}
return buf.toString('base64', i, buf.length - n);
}
function base64End(buf) {
var r = buf && buf.length ? this.write(buf) : '';
if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
return r;
}
// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
function simpleWrite(buf) {
return buf.toString(this.encoding);
}
function simpleEnd(buf) {
return buf && buf.length ? this.write(buf) : '';
}
/***/ }),
/***/ 441:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
// 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.
module.exports = Transform;
var Duplex = __webpack_require__(437);
/*<replacement>*/
var util = __webpack_require__(432);
util.inherits = __webpack_require__(10);
/*</replacement>*/
util.inherits(Transform, Duplex);
function afterTransform(er, data) {
var ts = this._transformState;
ts.transforming = false;
var cb = ts.writecb;
if (!cb) {
return this.emit('error', new Error('write callback called multiple times'));
}
ts.writechunk = null;
ts.writecb = null;
if (data != null) // single equals check for both `null` and `undefined`
this.push(data);
cb(er);
var rs = this._readableState;
rs.reading = false;
if (rs.needReadable || rs.length < rs.highWaterMark) {
this._read(rs.highWaterMark);
}
}
function Transform(options) {
if (!(this instanceof Transform)) return new Transform(options);
Duplex.call(this, options);
this._transformState = {
afterTransform: afterTransform.bind(this),
needTransform: false,
transforming: false,
writecb: null,
writechunk: null,
writeencoding: null
};
// start out asking for a readable event once data is transformed.
this._readableState.needReadable = true;
// we have implemented the _read method, and done the other things
// that Readable wants before the first _read call, so unset the
// sync guard flag.
this._readableState.sync = false;
if (options) {
if (typeof options.transform === 'function') this._transform = options.transform;
if (typeof options.flush === 'function') this._flush = options.flush;
}
// When the writable side finishes, then flush out anything remaining.
this.on('prefinish', prefinish);
}
function prefinish() {
var _this = this;
if (typeof this._flush === 'function') {
this._flush(function (er, data) {
done(_this, er, data);
});
} else {
done(this, null, null);
}
}
Transform.prototype.push = function (chunk, encoding) {
this._transformState.needTransform = false;
return Duplex.prototype.push.call(this, chunk, encoding);
};
// This is the part where you do stuff!
// override this function in implementation classes.
// 'chunk' is an input chunk.
//
// Call `push(newChunk)` to pass along transformed output
// to the readable side. You may call 'push' zero or more times.
//
// Call `cb(err)` when you are done with this chunk. If you pass
// an error, then that'll put the hurt on the whole operation. If you
// never call cb(), then you'll never get another chunk.
Transform.prototype._transform = function (chunk, encoding, cb) {
throw new Error('_transform() is not implemented');
};
Transform.prototype._write = function (chunk, encoding, cb) {
var ts = this._transformState;
ts.writecb = cb;
ts.writechunk = chunk;
ts.writeencoding = encoding;
if (!ts.transforming) {
var rs = this._readableState;
if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
}
};
// Doesn't matter what the args are here.
// _transform does all the work.
// That we got here means that the readable side wants more data.
Transform.prototype._read = function (n) {
var ts = this._transformState;
if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
ts.transforming = true;
this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
} else {
// mark that we need a transform, so that any data that comes in
// will get processed, now that we've asked for it.
ts.needTransform = true;
}
};
Transform.prototype._destroy = function (err, cb) {
var _this2 = this;
Duplex.prototype._destroy.call(this, err, function (err2) {
cb(err2);
_this2.emit('close');
});
};
function done(stream, er, data) {
if (er) return stream.emit('error', er);
if (data != null) // single equals check for both `null` and `undefined`
stream.push(data);
// if there's nothing in the write buffer, then that means
// that nothing more will ever be provided
if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');
if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');
return stream.push(null);
}
/***/ }),
/***/ 442:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
// 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.
module.exports = PassThrough;
var Transform = __webpack_require__(441);
/*<replacement>*/
var util = __webpack_require__(432);
util.inherits = __webpack_require__(10);
/*</replacement>*/
util.inherits(PassThrough, Transform);
function PassThrough(options) {
if (!(this instanceof PassThrough)) return new PassThrough(options);
Transform.call(this, options);
}
PassThrough.prototype._transform = function (chunk, encoding, cb) {
cb(null, chunk);
};
/***/ }),
/***/ 443:
/***/ (function(module, exports, __webpack_require__) {
module.exports = __webpack_require__(438);
/***/ }),
/***/ 444:
/***/ (function(module, exports, __webpack_require__) {
module.exports = __webpack_require__(437);
/***/ }),
/***/ 445:
/***/ (function(module, exports, __webpack_require__) {
module.exports = __webpack_require__(423).Transform
/***/ }),
/***/ 446:
/***/ (function(module, exports, __webpack_require__) {
module.exports = __webpack_require__(423).PassThrough
/***/ }),
/***/ 447:
/***/ (function(module, exports, __webpack_require__) {
/* WEBPACK VAR INJECTION */(function(Buffer) {/**
* Convert a typed array to a Buffer without a copy
*
* Author: Feross Aboukhadijeh <https://feross.org>
* License: MIT
*
* `npm install typedarray-to-buffer`
*/
var isTypedArray = __webpack_require__(448).strict
module.exports = function typedarrayToBuffer (arr) {
if (isTypedArray(arr)) {
// To avoid a copy, use the typed array's underlying ArrayBuffer to back new Buffer
var buf = Buffer.from(arr.buffer)
if (arr.byteLength !== arr.buffer.byteLength) {
// Respect the "view", i.e. byteOffset and byteLength, without doing a copy
buf = buf.slice(arr.byteOffset, arr.byteOffset + arr.byteLength)
}
return buf
} else {
// Pass through all other types to `Buffer.from`
return Buffer.from(arr)
}
}
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(429).Buffer))
/***/ }),
/***/ 448:
/***/ (function(module, exports) {
module.exports = isTypedArray
isTypedArray.strict = isStrictTypedArray
isTypedArray.loose = isLooseTypedArray
var toString = Object.prototype.toString
var names = {
'[object Int8Array]': true
, '[object Int16Array]': true
, '[object Int32Array]': true
, '[object Uint8Array]': true
, '[object Uint8ClampedArray]': true
, '[object Uint16Array]': true
, '[object Uint32Array]': true
, '[object Float32Array]': true
, '[object Float64Array]': true
}
function isTypedArray(arr) {
return (
isStrictTypedArray(arr)
|| isLooseTypedArray(arr)
)
}
function isStrictTypedArray(arr) {
return (
arr instanceof Int8Array
|| arr instanceof Int16Array
|| arr instanceof Int32Array
|| arr instanceof Uint8Array
|| arr instanceof Uint8ClampedArray
|| arr instanceof Uint16Array
|| arr instanceof Uint32Array
|| arr instanceof Float32Array
|| arr instanceof Float64Array
)
}
function isLooseTypedArray(arr) {
return names[toString.call(arr)]
}
/***/ }),
/***/ 449:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/* WEBPACK VAR INJECTION */(function(Buffer) {
const Token = __webpack_require__(450);
const strtok3 = __webpack_require__(451);
const {
stringToBytes,
tarHeaderChecksumMatches,
uint32SyncSafeToken,
uint8ArrayUtf8ByteString
} = __webpack_require__(466);
const supported = __webpack_require__(467);
const minimumBytes = 4100; // A fair amount of file-types are detectable within this range
async function fromStream(stream) {
const tokenizer = await strtok3.fromStream(stream);
try {
return await fromTokenizer(tokenizer);
} finally {
await tokenizer.close();
}
}
async function fromBuffer(input) {
if (!(input instanceof Uint8Array || input instanceof ArrayBuffer || Buffer.isBuffer(input))) {
throw new TypeError(`Expected the \`input\` argument to be of type \`Uint8Array\` or \`Buffer\` or \`ArrayBuffer\`, got \`${typeof input}\``);
}
const buffer = input instanceof Buffer ? input : Buffer.from(input);
if (!(buffer && buffer.length > 1)) {
return;
}
const tokenizer = strtok3.fromBuffer(buffer);
return fromTokenizer(tokenizer);
}
function _check(buffer, headers, options) {
options = {
offset: 0,
...options
};
for (const [index, header] of headers.entries()) {
// If a bitmask is set
if (options.mask) {
// If header doesn't equal `buf` with bits masked off
if (header !== (options.mask[index] & buffer[index + options.offset])) {
return false;
}
} else if (header !== buffer[index + options.offset]) {
return false;
}
}
return true;
}
async function _checkSequence(sequence, tokenizer, ignoreBytes) {
const buffer = Buffer.alloc(minimumBytes);
await tokenizer.ignore(ignoreBytes);
await tokenizer.peekBuffer(buffer, {mayBeLess: true});
return buffer.includes(Buffer.from(sequence));
}
async function fromTokenizer(tokenizer) {
try {
return _fromTokenizer(tokenizer);
} catch (error) {
if (!(error instanceof strtok3.EndOfStreamError)) {
throw error;
}
}
}
async function _fromTokenizer(tokenizer) {
let buffer = Buffer.alloc(minimumBytes);
const bytesRead = 12;
const check = (header, options) => _check(buffer, header, options);
const checkString = (header, options) => check(stringToBytes(header), options);
const checkSequence = (sequence, ignoreBytes) => _checkSequence(sequence, tokenizer, ignoreBytes);
// Keep reading until EOF if the file size is unknown.
if (!tokenizer.fileInfo.size) {
tokenizer.fileInfo.size = Number.MAX_SAFE_INTEGER;
}
await tokenizer.peekBuffer(buffer, {length: bytesRead, mayBeLess: true});
// -- 2-byte signatures --
if (check([0x42, 0x4D])) {
return {
ext: 'bmp',
mime: 'image/bmp'
};
}
if (check([0x0B, 0x77])) {
return {
ext: 'ac3',
mime: 'audio/vnd.dolby.dd-raw'
};
}
if (check([0x78, 0x01])) {
return {
ext: 'dmg',
mime: 'application/x-apple-diskimage'
};
}
if (check([0x4D, 0x5A])) {
return {
ext: 'exe',
mime: 'application/x-msdownload'
};
}
if (check([0x25, 0x21])) {
await tokenizer.peekBuffer(buffer, {length: 24, mayBeLess: true});
if (checkString('PS-Adobe-', {offset: 2}) &&
checkString(' EPSF-', {offset: 14})) {
return {
ext: 'eps',
mime: 'application/eps'
};
}
return {
ext: 'ps',
mime: 'application/postscript'
};
}
if (
check([0x1F, 0xA0]) ||
check([0x1F, 0x9D])
) {
return {
ext: 'Z',
mime: 'application/x-compress'
};
}
// -- 3-byte signatures --
if (check([0xFF, 0xD8, 0xFF])) {
return {
ext: 'jpg',
mime: 'image/jpeg'
};
}
if (check([0x49, 0x49, 0xBC])) {
return {
ext: 'jxr',
mime: 'image/vnd.ms-photo'
};
}
if (check([0x1F, 0x8B, 0x8])) {
return {
ext: 'gz',
mime: 'application/gzip'
};
}
if (check([0x42, 0x5A, 0x68])) {
return {
ext: 'bz2',
mime: 'application/x-bzip2'
};
}
if (checkString('ID3')) {
await tokenizer.ignore(6); // Skip ID3 header until the header size
const id3HeaderLen = await tokenizer.readToken(uint32SyncSafeToken);
if (tokenizer.position + id3HeaderLen > tokenizer.fileInfo.size) {
// Guess file type based on ID3 header for backward compatibility
return {
ext: 'mp3',
mime: 'audio/mpeg'
};
}
await tokenizer.ignore(id3HeaderLen);
return fromTokenizer(tokenizer); // Skip ID3 header, recursion
}
// Musepack, SV7
if (checkString('MP+')) {
return {
ext: 'mpc',
mime: 'audio/x-musepack'
};
}
if (
(buffer[0] === 0x43 || buffer[0] === 0x46) &&
check([0x57, 0x53], {offset: 1})
) {
return {
ext: 'swf',
mime: 'application/x-shockwave-flash'
};
}
// -- 4-byte signatures --
if (check([0x47, 0x49, 0x46])) {
return {
ext: 'gif',
mime: 'image/gif'
};
}
if (checkString('FLIF')) {
return {
ext: 'flif',
mime: 'image/flif'
};
}
if (checkString('8BPS')) {
return {
ext: 'psd',
mime: 'image/vnd.adobe.photoshop'
};
}
if (checkString('WEBP', {offset: 8})) {
return {
ext: 'webp',
mime: 'image/webp'
};
}
// Musepack, SV8
if (checkString('MPCK')) {
return {
ext: 'mpc',
mime: 'audio/x-musepack'
};
}
if (checkString('FORM')) {
return {
ext: 'aif',
mime: 'audio/aiff'
};
}
if (checkString('icns', {offset: 0})) {
return {
ext: 'icns',
mime: 'image/icns'
};
}
// Zip-based file formats
// Need to be before the `zip` check
if (check([0x50, 0x4B, 0x3, 0x4])) { // Local file header signature
try {
while (tokenizer.position + 30 < tokenizer.fileInfo.size) {
await tokenizer.readBuffer(buffer, {length: 30});
// https://en.wikipedia.org/wiki/Zip_(file_format)#File_headers
const zipHeader = {
compressedSize: buffer.readUInt32LE(18),
uncompressedSize: buffer.readUInt32LE(22),
filenameLength: buffer.readUInt16LE(26),
extraFieldLength: buffer.readUInt16LE(28)
};
zipHeader.filename = await tokenizer.readToken(new Token.StringType(zipHeader.filenameLength, 'utf-8'));
await tokenizer.ignore(zipHeader.extraFieldLength);
// Assumes signed `.xpi` from addons.mozilla.org
if (zipHeader.filename === 'META-INF/mozilla.rsa') {
return {
ext: 'xpi',
mime: 'application/x-xpinstall'
};
}
if (zipHeader.filename.endsWith('.rels') || zipHeader.filename.endsWith('.xml')) {
const type = zipHeader.filename.split('/')[0];
switch (type) {
case '_rels':
break;
case 'word':
return {
ext: 'docx',
mime: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'
};
case 'ppt':
return {
ext: 'pptx',
mime: 'application/vnd.openxmlformats-officedocument.presentationml.presentation'
};
case 'xl':
return {
ext: 'xlsx',
mime: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
};
default:
break;
}
}
if (zipHeader.filename.startsWith('xl/')) {
return {
ext: 'xlsx',
mime: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
};
}
// The docx, xlsx and pptx file types extend the Office Open XML file format:
// https://en.wikipedia.org/wiki/Office_Open_XML_file_formats
// We look for:
// - one entry named '[Content_Types].xml' or '_rels/.rels',
// - one entry indicating specific type of file.
// MS Office, OpenOffice and LibreOffice may put the parts in different order, so the check should not rely on it.
if (zipHeader.filename === 'mimetype' && zipHeader.compressedSize === zipHeader.uncompressedSize) {
const mimeType = await tokenizer.readToken(new Token.StringType(zipHeader.compressedSize, 'utf-8'));
switch (mimeType) {
case 'application/epub+zip':
return {
ext: 'epub',
mime: 'application/epub+zip'
};
case 'application/vnd.oasis.opendocument.text':
return {
ext: 'odt',
mime: 'application/vnd.oasis.opendocument.text'
};
case 'application/vnd.oasis.opendocument.spreadsheet':
return {
ext: 'ods',
mime: 'application/vnd.oasis.opendocument.spreadsheet'
};
case 'application/vnd.oasis.opendocument.presentation':
return {
ext: 'odp',
mime: 'application/vnd.oasis.opendocument.presentation'
};
default:
}
}
await tokenizer.ignore(zipHeader.compressedSize);
}
} catch (error) {
if (!(error instanceof strtok3.EndOfStreamError)) {
throw error;
}
}
return {
ext: 'zip',
mime: 'application/zip'
};
}
if (checkString('OggS')) {
// This is an OGG container
await tokenizer.ignore(28);
const type = Buffer.alloc(8);
await tokenizer.readBuffer(type);
// Needs to be before `ogg` check
if (_check(type, [0x4F, 0x70, 0x75, 0x73, 0x48, 0x65, 0x61, 0x64])) {
return {
ext: 'opus',
mime: 'audio/opus'
};
}
// If ' theora' in header.
if (_check(type, [0x80, 0x74, 0x68, 0x65, 0x6F, 0x72, 0x61])) {
return {
ext: 'ogv',
mime: 'video/ogg'
};
}
// If '\x01video' in header.
if (_check(type, [0x01, 0x76, 0x69, 0x64, 0x65, 0x6F, 0x00])) {
return {
ext: 'ogm',
mime: 'video/ogg'
};
}
// If ' FLAC' in header https://xiph.org/flac/faq.html
if (_check(type, [0x7F, 0x46, 0x4C, 0x41, 0x43])) {
return {
ext: 'oga',
mime: 'audio/ogg'
};
}
// 'Speex ' in header https://en.wikipedia.org/wiki/Speex
if (_check(type, [0x53, 0x70, 0x65, 0x65, 0x78, 0x20, 0x20])) {
return {
ext: 'spx',
mime: 'audio/ogg'
};
}
// If '\x01vorbis' in header
if (_check(type, [0x01, 0x76, 0x6F, 0x72, 0x62, 0x69, 0x73])) {
return {
ext: 'ogg',
mime: 'audio/ogg'
};
}
// Default OGG container https://www.iana.org/assignments/media-types/application/ogg
return {
ext: 'ogx',
mime: 'application/ogg'
};
}
if (
check([0x50, 0x4B]) &&
(buffer[2] === 0x3 || buffer[2] === 0x5 || buffer[2] === 0x7) &&
(buffer[3] === 0x4 || buffer[3] === 0x6 || buffer[3] === 0x8)
) {
return {
ext: 'zip',
mime: 'application/zip'
};
}
//
// File Type Box (https://en.wikipedia.org/wiki/ISO_base_media_file_format)
// It's not required to be first, but it's recommended to be. Almost all ISO base media files start with `ftyp` box.
// `ftyp` box must contain a brand major identifier, which must consist of ISO 8859-1 printable characters.
// Here we check for 8859-1 printable characters (for simplicity, it's a mask which also catches one non-printable character).
if (
checkString('ftyp', {offset: 4}) &&
(buffer[8] & 0x60) !== 0x00 // Brand major, first character ASCII?
) {
// They all can have MIME `video/mp4` except `application/mp4` special-case which is hard to detect.
// For some cases, we're specific, everything else falls to `video/mp4` with `mp4` extension.
const brandMajor = uint8ArrayUtf8ByteString(buffer, 8, 12).replace('\0', ' ').trim();
switch (brandMajor) {
case 'avif':
return {ext: 'avif', mime: 'image/avif'};
case 'mif1':
return {ext: 'heic', mime: 'image/heif'};
case 'msf1':
return {ext: 'heic', mime: 'image/heif-sequence'};
case 'heic':
case 'heix':
return {ext: 'heic', mime: 'image/heic'};
case 'hevc':
case 'hevx':
return {ext: 'heic', mime: 'image/heic-sequence'};
case 'qt':
return {ext: 'mov', mime: 'video/quicktime'};
case 'M4V':
case 'M4VH':
case 'M4VP':
return {ext: 'm4v', mime: 'video/x-m4v'};
case 'M4P':
return {ext: 'm4p', mime: 'video/mp4'};
case 'M4B':
return {ext: 'm4b', mime: 'audio/mp4'};
case 'M4A':
return {ext: 'm4a', mime: 'audio/x-m4a'};
case 'F4V':
return {ext: 'f4v', mime: 'video/mp4'};
case 'F4P':
return {ext: 'f4p', mime: 'video/mp4'};
case 'F4A':
return {ext: 'f4a', mime: 'audio/mp4'};
case 'F4B':
return {ext: 'f4b', mime: 'audio/mp4'};
case 'crx':
return {ext: 'cr3', mime: 'image/x-canon-cr3'};
default:
if (brandMajor.startsWith('3g')) {
if (brandMajor.startsWith('3g2')) {
return {ext: '3g2', mime: 'video/3gpp2'};
}
return {ext: '3gp', mime: 'video/3gpp'};
}
return {ext: 'mp4', mime: 'video/mp4'};
}
}
if (checkString('MThd')) {
return {
ext: 'mid',
mime: 'audio/midi'
};
}
if (
checkString('wOFF') &&
(
check([0x00, 0x01, 0x00, 0x00], {offset: 4}) ||
checkString('OTTO', {offset: 4})
)
) {
return {
ext: 'woff',
mime: 'font/woff'
};
}
if (
checkString('wOF2') &&
(
check([0x00, 0x01, 0x00, 0x00], {offset: 4}) ||
checkString('OTTO', {offset: 4})
)
) {
return {
ext: 'woff2',
mime: 'font/woff2'
};
}
if (check([0xD4, 0xC3, 0xB2, 0xA1]) || check([0xA1, 0xB2, 0xC3, 0xD4])) {
return {
ext: 'pcap',
mime: 'application/vnd.tcpdump.pcap'
};
}
// Sony DSD Stream File (DSF)
if (checkString('DSD ')) {
return {
ext: 'dsf',
mime: 'audio/x-dsf' // Non-standard
};
}
if (checkString('LZIP')) {
return {
ext: 'lz',
mime: 'application/x-lzip'
};
}
if (checkString('fLaC')) {
return {
ext: 'flac',
mime: 'audio/x-flac'
};
}
if (check([0x42, 0x50, 0x47, 0xFB])) {
return {
ext: 'bpg',
mime: 'image/bpg'
};
}
if (checkString('wvpk')) {
return {
ext: 'wv',
mime: 'audio/wavpack'
};
}
if (checkString('%PDF')) {
// Check if this is an Adobe Illustrator file
const isAiFile = await checkSequence('Adobe Illustrator', 1350);
if (isAiFile) {
return {
ext: 'ai',
mime: 'application/postscript'
};
}
// Assume this is just a normal PDF
return {
ext: 'pdf',
mime: 'application/pdf'
};
}
if (check([0x00, 0x61, 0x73, 0x6D])) {
return {
ext: 'wasm',
mime: 'application/wasm'
};
}
// TIFF, little-endian type
if (check([0x49, 0x49, 0x2A, 0x0])) {
if (checkString('CR', {offset: 8})) {
return {
ext: 'cr2',
mime: 'image/x-canon-cr2'
};
}
if (check([0x1C, 0x00, 0xFE, 0x00], {offset: 8}) || check([0x1F, 0x00, 0x0B, 0x00], {offset: 8})) {
return {
ext: 'nef',
mime: 'image/x-nikon-nef'
};
}
if (
check([0x08, 0x00, 0x00, 0x00], {offset: 4}) &&
(check([0x2D, 0x00, 0xFE, 0x00], {offset: 8}) ||
check([0x27, 0x00, 0xFE, 0x00], {offset: 8}))
) {
return {
ext: 'dng',
mime: 'image/x-adobe-dng'
};
}
buffer = Buffer.alloc(24);
await tokenizer.peekBuffer(buffer);
if (
(check([0x10, 0xFB, 0x86, 0x01], {offset: 4}) || check([0x08, 0x00, 0x00, 0x00], {offset: 4})) &&
// This pattern differentiates ARW from other TIFF-ish file types:
check([0x00, 0xFE, 0x00, 0x04, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x03, 0x01], {offset: 9})
) {
return {
ext: 'arw',
mime: 'image/x-sony-arw'
};
}
return {
ext: 'tif',
mime: 'image/tiff'
};
}
// TIFF, big-endian type
if (check([0x4D, 0x4D, 0x0, 0x2A])) {
return {
ext: 'tif',
mime: 'image/tiff'
};
}
if (checkString('MAC ')) {
return {
ext: 'ape',
mime: 'audio/ape'
};
}
// https://github.com/threatstack/libmagic/blob/master/magic/Magdir/matroska
if (check([0x1A, 0x45, 0xDF, 0xA3])) { // Root element: EBML
async function readField() {
const msb = await tokenizer.peekNumber(Token.UINT8);
let mask = 0x80;
let ic = 0; // 0 = A, 1 = B, 2 = C, 3 = D
while ((msb & mask) === 0) {
++ic;
mask >>= 1;
}
const id = Buffer.alloc(ic + 1);
await tokenizer.readBuffer(id);
return id;
}
async function readElement() {
const id = await readField();
const lenField = await readField();
lenField[0] ^= 0x80 >> (lenField.length - 1);
const nrLen = Math.min(6, lenField.length); // JavaScript can max read 6 bytes integer
return {
id: id.readUIntBE(0, id.length),
len: lenField.readUIntBE(lenField.length - nrLen, nrLen)
};
}
async function readChildren(level, children) {
while (children > 0) {
const e = await readElement();
if (e.id === 0x4282) {
return tokenizer.readToken(new Token.StringType(e.len, 'utf-8')); // Return DocType
}
await tokenizer.ignore(e.len); // ignore payload
--children;
}
}
const re = await readElement();
const docType = await readChildren(1, re.len);
switch (docType) {
case 'webm':
return {
ext: 'webm',
mime: 'video/webm'
};
case 'matroska':
return {
ext: 'mkv',
mime: 'video/x-matroska'
};
default:
return;
}
}
// RIFF file format which might be AVI, WAV, QCP, etc
if (check([0x52, 0x49, 0x46, 0x46])) {
if (check([0x41, 0x56, 0x49], {offset: 8})) {
return {
ext: 'avi',
mime: 'video/vnd.avi'
};
}
if (check([0x57, 0x41, 0x56, 0x45], {offset: 8})) {
return {
ext: 'wav',
mime: 'audio/vnd.wave'
};
}
// QLCM, QCP file
if (check([0x51, 0x4C, 0x43, 0x4D], {offset: 8})) {
return {
ext: 'qcp',
mime: 'audio/qcelp'
};
}
}
if (checkString('SQLi')) {
return {
ext: 'sqlite',
mime: 'application/x-sqlite3'
};
}
if (check([0x4E, 0x45, 0x53, 0x1A])) {
return {
ext: 'nes',
mime: 'application/x-nintendo-nes-rom'
};
}
if (checkString('Cr24')) {
return {
ext: 'crx',
mime: 'application/x-google-chrome-extension'
};
}
if (
checkString('MSCF') ||
checkString('ISc(')
) {
return {
ext: 'cab',
mime: 'application/vnd.ms-cab-compressed'
};
}
if (check([0xED, 0xAB, 0xEE, 0xDB])) {
return {
ext: 'rpm',
mime: 'application/x-rpm'
};
}
if (check([0xC5, 0xD0, 0xD3, 0xC6])) {
return {
ext: 'eps',
mime: 'application/eps'
};
}
// -- 5-byte signatures --
if (check([0x4F, 0x54, 0x54, 0x4F, 0x00])) {
return {
ext: 'otf',
mime: 'font/otf'
};
}
if (checkString('#!AMR')) {
return {
ext: 'amr',
mime: 'audio/amr'
};
}
if (checkString('{\\rtf')) {
return {
ext: 'rtf',
mime: 'application/rtf'
};
}
if (check([0x46, 0x4C, 0x56, 0x01])) {
return {
ext: 'flv',
mime: 'video/x-flv'
};
}
if (checkString('IMPM')) {
return {
ext: 'it',
mime: 'audio/x-it'
};
}
if (
checkString('-lh0-', {offset: 2}) ||
checkString('-lh1-', {offset: 2}) ||
checkString('-lh2-', {offset: 2}) ||
checkString('-lh3-', {offset: 2}) ||
checkString('-lh4-', {offset: 2}) ||
checkString('-lh5-', {offset: 2}) ||
checkString('-lh6-', {offset: 2}) ||
checkString('-lh7-', {offset: 2}) ||
checkString('-lzs-', {offset: 2}) ||
checkString('-lz4-', {offset: 2}) ||
checkString('-lz5-', {offset: 2}) ||
checkString('-lhd-', {offset: 2})
) {
return {
ext: 'lzh',
mime: 'application/x-lzh-compressed'
};
}
// MPEG program stream (PS or MPEG-PS)
if (check([0x00, 0x00, 0x01, 0xBA])) {
// MPEG-PS, MPEG-1 Part 1
if (check([0x21], {offset: 4, mask: [0xF1]})) {
return {
ext: 'mpg', // May also be .ps, .mpeg
mime: 'video/MP1S'
};
}
// MPEG-PS, MPEG-2 Part 1
if (check([0x44], {offset: 4, mask: [0xC4]})) {
return {
ext: 'mpg', // May also be .mpg, .m2p, .vob or .sub
mime: 'video/MP2P'
};
}
}
// -- 6-byte signatures --
if (check([0xFD, 0x37, 0x7A, 0x58, 0x5A, 0x00])) {
return {
ext: 'xz',
mime: 'application/x-xz'
};
}
if (checkString('<?xml ')) {
return {
ext: 'xml',
mime: 'application/xml'
};
}
if (checkString('BEGIN:')) {
return {
ext: 'ics',
mime: 'text/calendar'
};
}
if (check([0x37, 0x7A, 0xBC, 0xAF, 0x27, 0x1C])) {
return {
ext: '7z',
mime: 'application/x-7z-compressed'
};
}
if (
check([0x52, 0x61, 0x72, 0x21, 0x1A, 0x7]) &&
(buffer[6] === 0x0 || buffer[6] === 0x1)
) {
return {
ext: 'rar',
mime: 'application/x-rar-compressed'
};
}
// -- 7-byte signatures --
if (checkString('BLENDER')) {
return {
ext: 'blend',
mime: 'application/x-blender'
};
}
if (checkString('!<arch>')) {
await tokenizer.ignore(8);
const str = await tokenizer.readToken(new Token.StringType(13, 'ascii'));
if (str === 'debian-binary') {
return {
ext: 'deb',
mime: 'application/x-deb'
};
}
return {
ext: 'ar',
mime: 'application/x-unix-archive'
};
}
// -- 8-byte signatures --
if (check([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A])) {
// APNG format (https://wiki.mozilla.org/APNG_Specification)
// 1. Find the first IDAT (image data) chunk (49 44 41 54)
// 2. Check if there is an "acTL" chunk before the IDAT one (61 63 54 4C)
// Offset calculated as follows:
// - 8 bytes: PNG signature
// - 4 (length) + 4 (chunk type) + 13 (chunk data) + 4 (CRC): IHDR chunk
await tokenizer.ignore(8); // ignore PNG signature
async function readChunkHeader() {
return {
length: await tokenizer.readToken(Token.INT32_BE),
type: await tokenizer.readToken(new Token.StringType(4, 'binary'))
};
}
do {
const chunk = await readChunkHeader();
switch (chunk.type) {
case 'IDAT':
return {
ext: 'png',
mime: 'image/png'
};
case 'acTL':
return {
ext: 'apng',
mime: 'image/apng'
};
default:
await tokenizer.ignore(chunk.length + 4); // Ignore chunk-data + CRC
}
} while (tokenizer.position < tokenizer.fileInfo.size);
return {
ext: 'png',
mime: 'image/png'
};
}
if (check([0x41, 0x52, 0x52, 0x4F, 0x57, 0x31, 0x00, 0x00])) {
return {
ext: 'arrow',
mime: 'application/x-apache-arrow'
};
}
if (check([0x67, 0x6C, 0x54, 0x46, 0x02, 0x00, 0x00, 0x00])) {
return {
ext: 'glb',
mime: 'model/gltf-binary'
};
}
// `mov` format variants
if (
check([0x66, 0x72, 0x65, 0x65], {offset: 4}) || // `free`
check([0x6D, 0x64, 0x61, 0x74], {offset: 4}) || // `mdat` MJPEG
check([0x6D, 0x6F, 0x6F, 0x76], {offset: 4}) || // `moov`
check([0x77, 0x69, 0x64, 0x65], {offset: 4}) // `wide`
) {
return {
ext: 'mov',
mime: 'video/quicktime'
};
}
// -- 9-byte signatures --
if (check([0x49, 0x49, 0x52, 0x4F, 0x08, 0x00, 0x00, 0x00, 0x18])) {
return {
ext: 'orf',
mime: 'image/x-olympus-orf'
};
}
// -- 12-byte signatures --
if (check([0x49, 0x49, 0x55, 0x00, 0x18, 0x00, 0x00, 0x00, 0x88, 0xE7, 0x74, 0xD8])) {
return {
ext: 'rw2',
mime: 'image/x-panasonic-rw2'
};
}
// ASF_Header_Object first 80 bytes
if (check([0x30, 0x26, 0xB2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xA6, 0xD9])) {
async function readHeader() {
const guid = Buffer.alloc(16);
await tokenizer.readBuffer(guid);
return {
id: guid,
size: await tokenizer.readToken(Token.UINT64_LE)
};
}
await tokenizer.ignore(30);
// Search for header should be in first 1KB of file.
while (tokenizer.position + 24 < tokenizer.fileInfo.size) {
const header = await readHeader();
let payload = header.size - 24;
if (_check(header.id, [0x91, 0x07, 0xDC, 0xB7, 0xB7, 0xA9, 0xCF, 0x11, 0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65])) {
// Sync on Stream-Properties-Object (B7DC0791-A9B7-11CF-8EE6-00C00C205365)
const typeId = Buffer.alloc(16);
payload -= await tokenizer.readBuffer(typeId);
if (_check(typeId, [0x40, 0x9E, 0x69, 0xF8, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B])) {
// Found audio:
return {
ext: 'wma',
mime: 'audio/x-ms-wma'
};
}
if (_check(typeId, [0xC0, 0xEF, 0x19, 0xBC, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B])) {
// Found video:
return {
ext: 'wmv',
mime: 'video/x-ms-asf'
};
}
break;
}
await tokenizer.ignore(payload);
}
// Default to ASF generic extension
return {
ext: 'asf',
mime: 'application/vnd.ms-asf'
};
}
if (check([0xAB, 0x4B, 0x54, 0x58, 0x20, 0x31, 0x31, 0xBB, 0x0D, 0x0A, 0x1A, 0x0A])) {
return {
ext: 'ktx',
mime: 'image/ktx'
};
}
if ((check([0x7E, 0x10, 0x04]) || check([0x7E, 0x18, 0x04])) && check([0x30, 0x4D, 0x49, 0x45], {offset: 4})) {
return {
ext: 'mie',
mime: 'application/x-mie'
};
}
if (check([0x27, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00], {offset: 2})) {
return {
ext: 'shp',
mime: 'application/x-esri-shape'
};
}
if (check([0x00, 0x00, 0x00, 0x0C, 0x6A, 0x50, 0x20, 0x20, 0x0D, 0x0A, 0x87, 0x0A])) {
// JPEG-2000 family
await tokenizer.ignore(20);
const type = await tokenizer.readToken(new Token.StringType(4, 'ascii'));
switch (type) {
case 'jp2 ':
return {
ext: 'jp2',
mime: 'image/jp2'
};
case 'jpx ':
return {
ext: 'jpx',
mime: 'image/jpx'
};
case 'jpm ':
return {
ext: 'jpm',
mime: 'image/jpm'
};
case 'mjp2':
return {
ext: 'mj2',
mime: 'image/mj2'
};
default:
return;
}
}
// -- Unsafe signatures --
if (
check([0x0, 0x0, 0x1, 0xBA]) ||
check([0x0, 0x0, 0x1, 0xB3])
) {
return {
ext: 'mpg',
mime: 'video/mpeg'
};
}
if (check([0x00, 0x01, 0x00, 0x00, 0x00])) {
return {
ext: 'ttf',
mime: 'font/ttf'
};
}
if (check([0x00, 0x00, 0x01, 0x00])) {
return {
ext: 'ico',
mime: 'image/x-icon'
};
}
if (check([0x00, 0x00, 0x02, 0x00])) {
return {
ext: 'cur',
mime: 'image/x-icon'
};
}
// Increase sample size from 12 to 256.
await tokenizer.peekBuffer(buffer, {length: Math.min(256, tokenizer.fileInfo.size), mayBeLess: true});
// `raf` is here just to keep all the raw image detectors together.
if (checkString('FUJIFILMCCD-RAW')) {
return {
ext: 'raf',
mime: 'image/x-fujifilm-raf'
};
}
if (checkString('Extended Module:')) {
return {
ext: 'xm',
mime: 'audio/x-xm'
};
}
if (checkString('Creative Voice File')) {
return {
ext: 'voc',
mime: 'audio/x-voc'
};
}
if (
check([0x30, 0x30, 0x30, 0x30, 0x30, 0x30], {offset: 148, mask: [0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8]}) && // Valid tar checksum
tarHeaderChecksumMatches(buffer)
) {
return {
ext: 'tar',
mime: 'application/x-tar'
};
}
if (check([0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3E])) {
return {
ext: 'msi',
mime: 'application/x-msi'
};
}
if (check([0x06, 0x0E, 0x2B, 0x34, 0x02, 0x05, 0x01, 0x01, 0x0D, 0x01, 0x02, 0x01, 0x01, 0x02])) {
return {
ext: 'mxf',
mime: 'application/mxf'
};
}
if (checkString('SCRM', {offset: 44})) {
return {
ext: 's3m',
mime: 'audio/x-s3m'
};
}
if (check([0x47], {offset: 4}) && (check([0x47], {offset: 192}) || check([0x47], {offset: 196}))) {
return {
ext: 'mts',
mime: 'video/mp2t'
};
}
if (check([0x42, 0x4F, 0x4F, 0x4B, 0x4D, 0x4F, 0x42, 0x49], {offset: 60})) {
return {
ext: 'mobi',
mime: 'application/x-mobipocket-ebook'
};
}
if (check([0x44, 0x49, 0x43, 0x4D], {offset: 128})) {
return {
ext: 'dcm',
mime: 'application/dicom'
};
}
if (check([0x4C, 0x00, 0x00, 0x00, 0x01, 0x14, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46])) {
return {
ext: 'lnk',
mime: 'application/x.ms.shortcut' // Invented by us
};
}
if (check([0x62, 0x6F, 0x6F, 0x6B, 0x00, 0x00, 0x00, 0x00, 0x6D, 0x61, 0x72, 0x6B, 0x00, 0x00, 0x00, 0x00])) {
return {
ext: 'alias',
mime: 'application/x.apple.alias' // Invented by us
};
}
if (
check([0x4C, 0x50], {offset: 34}) &&
(
check([0x00, 0x00, 0x01], {offset: 8}) ||
check([0x01, 0x00, 0x02], {offset: 8}) ||
check([0x02, 0x00, 0x02], {offset: 8})
)
) {
return {
ext: 'eot',
mime: 'application/vnd.ms-fontobject'
};
}
// Increase sample size from 256 to 512
await tokenizer.peekBuffer(buffer, {length: Math.min(512, tokenizer.fileInfo.size), mayBeLess: true});
if (
check([0x30, 0x30, 0x30, 0x30, 0x30, 0x30], {offset: 148, mask: [0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8]}) && // Valid tar checksum
tarHeaderChecksumMatches(buffer)
) {
return {
ext: 'tar',
mime: 'application/x-tar'
};
}
if (check([0xFF, 0xFE, 0xFF, 0x0E, 0x53, 0x00, 0x6B, 0x00, 0x65, 0x00, 0x74, 0x00, 0x63, 0x00, 0x68, 0x00, 0x55, 0x00, 0x70, 0x00, 0x20, 0x00, 0x4D, 0x00, 0x6F, 0x00, 0x64, 0x00, 0x65, 0x00, 0x6C, 0x00])) {
return {
ext: 'skp',
mime: 'application/vnd.sketchup.skp'
};
}
// Check for MPEG header at different starting offsets
for (let start = 0; start < 2 && start < (buffer.length - 16); start++) {
// Check MPEG 1 or 2 Layer 3 header, or 'layer 0' for ADTS (MPEG sync-word 0xFFE)
if (buffer.length >= start + 2 && check([0xFF, 0xE0], {offset: start, mask: [0xFF, 0xE0]})) {
if (check([0x10], {offset: start + 1, mask: [0x16]})) {
// Check for (ADTS) MPEG-2
if (check([0x08], {offset: start + 1, mask: [0x08]})) {
return {
ext: 'aac',
mime: 'audio/aac'
};
}
// Must be (ADTS) MPEG-4
return {
ext: 'aac',
mime: 'audio/aac'
};
}
// MPEG 1 or 2 Layer 3 header
// Check for MPEG layer 3
if (check([0x02], {offset: start + 1, mask: [0x06]})) {
return {
ext: 'mp3',
mime: 'audio/mpeg'
};
}
// Check for MPEG layer 2
if (check([0x04], {offset: start + 1, mask: [0x06]})) {
return {
ext: 'mp2',
mime: 'audio/mpeg'
};
}
// Check for MPEG layer 1
if (check([0x06], {offset: start + 1, mask: [0x06]})) {
return {
ext: 'mp1',
mime: 'audio/mpeg'
};
}
}
}
}
const stream = readableStream => new Promise((resolve, reject) => {
// Using `eval` to work around issues when bundling with Webpack
const stream = eval('require')('stream'); // eslint-disable-line no-eval
readableStream.on('error', reject);
readableStream.once('readable', async () => {
// Set up output stream
const pass = new stream.PassThrough();
let outputStream;
if (stream.pipeline) {
outputStream = stream.pipeline(readableStream, pass, () => {});
} else {
outputStream = readableStream.pipe(pass);
}
// Read the input stream and detect the filetype
const chunk = readableStream.read(minimumBytes) || readableStream.read() || Buffer.alloc(0);
try {
const fileType = await fromBuffer(chunk);
pass.fileType = fileType;
} catch (error) {
reject(error);
}
resolve(outputStream);
});
});
const fileType = {
fromStream,
fromTokenizer,
fromBuffer,
stream
};
Object.defineProperty(fileType, 'extensions', {
get() {
return new Set(supported.extensions);
}
});
Object.defineProperty(fileType, 'mimeTypes', {
get() {
return new Set(supported.mimeTypes);
}
});
module.exports = fileType;
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(429).Buffer))
/***/ }),
/***/ 450:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const assert = __webpack_require__(12);
const ieee754 = __webpack_require__(431);
// Primitive types
/**
* 8-bit unsigned integer
*/
exports.UINT8 = {
len: 1,
get(buf, off) {
return buf.readUInt8(off);
},
put(buf, off, v) {
assert.equal(typeof off, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= 0 && v <= 0xff);
assert.ok(off >= 0);
assert.ok(this.len <= buf.length);
return buf.writeUInt8(v, off);
}
};
/**
* 16-bit unsigned integer, Little Endian byte order
*/
exports.UINT16_LE = {
len: 2,
get(buf, off) {
return buf.readUInt16LE(off);
},
put(buf, off, v) {
assert.equal(typeof off, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= 0 && v <= 0xffff);
assert.ok(off >= 0);
assert.ok(this.len <= buf.length);
return buf.writeUInt16LE(v, off);
}
};
/**
* 16-bit unsigned integer, Big Endian byte order
*/
exports.UINT16_BE = {
len: 2,
get(buf, off) {
return buf.readUInt16BE(off);
},
put(buf, off, v) {
assert.equal(typeof off, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= 0 && v <= 0xffff);
assert.ok(off >= 0);
assert.ok(this.len <= buf.length);
return buf.writeUInt16BE(v, off);
}
};
/**
* 24-bit unsigned integer, Little Endian byte order
*/
exports.UINT24_LE = {
len: 3,
get(buf, off) {
return buf.readUIntLE(off, 3);
},
put(buf, off, v) {
assert.equal(typeof off, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= 0 && v <= 0xffffff);
assert.ok(off >= 0);
assert.ok(this.len <= buf.length);
return buf.writeUIntLE(v, off, 3);
}
};
/**
* 24-bit unsigned integer, Big Endian byte order
*/
exports.UINT24_BE = {
len: 3,
get(buf, off) {
return buf.readUIntBE(off, 3);
},
put(buf, off, v) {
assert.equal(typeof off, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= 0 && v <= 0xffffff);
assert.ok(off >= 0);
assert.ok(this.len <= buf.length);
return buf.writeUIntBE(v, off, 3);
}
};
/**
* 32-bit unsigned integer, Little Endian byte order
*/
exports.UINT32_LE = {
len: 4,
get(buf, off) {
return buf.readUInt32LE(off);
},
put(b, o, v) {
assert.equal(typeof o, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= 0 && v <= 0xffffffff);
assert.ok(o >= 0);
assert.ok(this.len <= b.length);
return b.writeUInt32LE(v, o);
}
};
/**
* 32-bit unsigned integer, Big Endian byte order
*/
exports.UINT32_BE = {
len: 4,
get(buf, off) {
return buf.readUInt32BE(off);
},
put(buf, off, v) {
assert.equal(typeof off, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= 0 && v <= 0xffffffff);
assert.ok(off >= 0);
assert.ok(this.len <= buf.length);
return buf.writeUInt32BE(v, off);
}
};
/**
* 8-bit signed integer
*/
exports.INT8 = {
len: 1,
get(buf, off) {
return buf.readInt8(off);
},
put(buf, off, v) {
assert.equal(typeof off, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= -128 && v <= 127);
assert.ok(off >= 0);
assert.ok(this.len <= buf.length);
return buf.writeInt8(v, off);
}
};
/**
* 16-bit signed integer, Big Endian byte order
*/
exports.INT16_BE = {
len: 2,
get(buf, off) {
return buf.readInt16BE(off);
},
put(b, o, v) {
assert.equal(typeof o, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= -32768 && v <= 32767);
assert.ok(o >= 0);
assert.ok(this.len <= b.length);
return b.writeInt16BE(v, o);
}
};
/**
* 16-bit signed integer, Little Endian byte order
*/
exports.INT16_LE = {
len: 2,
get(buf, off) {
return buf.readInt16LE(off);
},
put(b, o, v) {
assert.equal(typeof o, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= -32768 && v <= 32767);
assert.ok(o >= 0);
assert.ok(this.len <= b.length);
return b.writeInt16LE(v, o);
}
};
/**
* 24-bit signed integer, Little Endian byte order
*/
exports.INT24_LE = {
len: 3,
get(buf, off) {
return buf.readIntLE(off, 3);
},
put(b, o, v) {
assert.equal(typeof o, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= -0x800000 && v <= 0x7fffff);
assert.ok(o >= 0);
assert.ok(this.len <= b.length);
return b.writeIntLE(v, o, 3);
}
};
/**
* 24-bit signed integer, Big Endian byte order
*/
exports.INT24_BE = {
len: 3,
get(buf, off) {
return buf.readIntBE(off, 3);
},
put(b, o, v) {
assert.equal(typeof o, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= -0x800000 && v <= 0x7fffff);
assert.ok(o >= 0);
assert.ok(this.len <= b.length);
return b.writeIntBE(v, o, 3);
}
};
/**
* 32-bit signed integer, Big Endian byte order
*/
exports.INT32_BE = {
len: 4,
get(buf, off) {
return buf.readInt32BE(off);
},
put(b, o, v) {
assert.equal(typeof o, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= -2147483648 && v <= 2147483647);
assert.ok(o >= 0);
assert.ok(this.len <= b.length);
return b.writeInt32BE(v, o);
}
};
/**
* 32-bit signed integer, Big Endian byte order
*/
exports.INT32_LE = {
len: 4,
get(buf, off) {
return buf.readInt32LE(off);
},
put(b, o, v) {
assert.equal(typeof o, 'number');
assert.equal(typeof v, 'number');
assert.ok(v >= -2147483648 && v <= 2147483647);
assert.ok(o >= 0);
assert.ok(this.len <= b.length);
return b.writeInt32LE(v, o);
}
};
/**
* 64-bit unsigned integer, Little Endian byte order
*/
exports.UINT64_LE = {
len: 8,
get(buf, off) {
return readUIntLE(buf, off, this.len);
},
put(b, o, v) {
return writeUIntLE(b, v, o, this.len);
}
};
/**
* 64-bit signed integer, Little Endian byte order
*/
exports.INT64_LE = {
len: 8,
get(buf, off) {
return readIntLE(buf, off, this.len);
},
put(b, off, v) {
return writeIntLE(b, v, off, this.len);
}
};
/**
* 64-bit unsigned integer, Big Endian byte order
*/
exports.UINT64_BE = {
len: 8,
get(b, off) {
return readUIntBE(b, off, this.len);
},
put(b, o, v) {
return writeUIntBE(b, v, o, this.len);
}
};
/**
* 64-bit signed integer, Big Endian byte order
*/
exports.INT64_BE = {
len: 8,
get(b, off) {
return readIntBE(b, off, this.len);
},
put(b, off, v) {
return writeIntBE(b, v, off, this.len);
}
};
/**
* IEEE 754 16-bit (half precision) float, big endian
*/
exports.Float16_BE = {
len: 2,
get(b, off) {
return ieee754.read(b, off, false, 10, this.len);
},
put(b, off, v) {
return ieee754.write(b, v, off, false, 10, this.len);
}
};
/**
* IEEE 754 16-bit (half precision) float, little endian
*/
exports.Float16_LE = {
len: 2,
get(b, off) {
return ieee754.read(b, off, true, 10, this.len);
},
put(b, off, v) {
return ieee754.write(b, v, off, true, 10, this.len);
}
};
/**
* IEEE 754 32-bit (single precision) float, big endian
*/
exports.Float32_BE = {
len: 4,
get(b, off) {
return b.readFloatBE(off);
},
put(b, off, v) {
return b.writeFloatBE(v, off);
}
};
/**
* IEEE 754 32-bit (single precision) float, little endian
*/
exports.Float32_LE = {
len: 4,
get(b, off) {
return b.readFloatLE(off);
},
put(b, off, v) {
return b.writeFloatLE(v, off);
}
};
/**
* IEEE 754 64-bit (double precision) float, big endian
*/
exports.Float64_BE = {
len: 8,
get(b, off) {
return b.readDoubleBE(off);
},
put(b, off, v) {
return b.writeDoubleBE(v, off);
}
};
/**
* IEEE 754 64-bit (double precision) float, little endian
*/
exports.Float64_LE = {
len: 8,
get(b, off) {
return b.readDoubleLE(off);
},
put(b, off, v) {
return b.writeDoubleLE(v, off);
}
};
/**
* IEEE 754 80-bit (extended precision) float, big endian
*/
exports.Float80_BE = {
len: 10,
get(b, off) {
return ieee754.read(b, off, false, 63, this.len);
},
put(b, off, v) {
return ieee754.write(b, v, off, false, 63, this.len);
}
};
/**
* IEEE 754 80-bit (extended precision) float, little endian
*/
exports.Float80_LE = {
len: 10,
get(b, off) {
return ieee754.read(b, off, true, 63, this.len);
},
put(b, off, v) {
return ieee754.write(b, v, off, true, 63, this.len);
}
};
/**
* Ignore a given number of bytes
*/
class IgnoreType {
/**
* @param len number of bytes to ignore
*/
constructor(len) {
this.len = len;
}
// ToDo: don't read, but skip data
get(buf, off) {
}
}
exports.IgnoreType = IgnoreType;
class BufferType {
constructor(len) {
this.len = len;
}
get(buf, off) {
return buf.slice(off, off + this.len);
}
}
exports.BufferType = BufferType;
/**
* Consume a fixed number of bytes from the stream and return a string with a specified encoding.
*/
class StringType {
constructor(len, encoding) {
this.len = len;
this.encoding = encoding;
}
get(buf, off) {
return buf.toString(this.encoding, off, off + this.len);
}
}
exports.StringType = StringType;
/**
* ANSI Latin 1 String
* Using windows-1252 / ISO 8859-1 decoding
*/
class AnsiStringType {
constructor(len) {
this.len = len;
}
static decode(buffer, off, until) {
let str = '';
for (let i = off; i < until; ++i) {
str += AnsiStringType.codePointToString(AnsiStringType.singleByteDecoder(buffer[i]));
}
return str;
}
static inRange(a, min, max) {
return min <= a && a <= max;
}
static codePointToString(cp) {
if (cp <= 0xFFFF) {
return String.fromCharCode(cp);
}
else {
cp -= 0x10000;
return String.fromCharCode((cp >> 10) + 0xD800, (cp & 0x3FF) + 0xDC00);
}
}
static singleByteDecoder(bite) {
if (AnsiStringType.inRange(bite, 0x00, 0x7F)) {
return bite;
}
const codePoint = AnsiStringType.windows1252[bite - 0x80];
if (codePoint === null) {
throw Error('invaliding encoding');
}
return codePoint;
}
get(buf, off = 0) {
return AnsiStringType.decode(buf, off, off + this.len);
}
}
exports.AnsiStringType = AnsiStringType;
AnsiStringType.windows1252 = [8364, 129, 8218, 402, 8222, 8230, 8224, 8225, 710, 8240, 352,
8249, 338, 141, 381, 143, 144, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 732,
8482, 353, 8250, 339, 157, 382, 376, 160, 161, 162, 163, 164, 165, 166, 167, 168,
169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184,
185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200,
201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216,
217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232,
233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247,
248, 249, 250, 251, 252, 253, 254, 255];
/**
* Best effort approach to read up to 64 bit unsigned integer, little endian.
* Note that JavasScript is limited to 2^53 - 1 bit.
*/
function readUIntLE(buf, offset, byteLength) {
offset = offset >>> 0;
byteLength = byteLength >>> 0;
let val = buf[offset];
let mul = 1;
let i = 0;
while (++i < byteLength && (mul *= 0x100)) {
val += buf[offset + i] * mul;
}
return val;
}
/**
* Best effort approach to write up to 64 bit unsigned integer, little endian.
* Note that JavasScript is limited to 2^53 - 1 bit.
*/
function writeUIntLE(buf, value, offset, byteLength) {
value = +value;
offset = offset >>> 0;
byteLength = byteLength >>> 0;
let mul = 1;
let i = 0;
buf[offset] = value & 0xFF;
while (++i < byteLength && (mul *= 0x100)) {
buf[offset + i] = (value / mul) & 0xFF;
}
return offset + byteLength;
}
/**
* Best effort approach to read 64 but signed integer, little endian.
* Note that JavasScript is limited to 2^53 - 1 bit.
*/
function readIntLE(buf, offset, byteLength) {
offset = offset >>> 0;
byteLength = byteLength >>> 0;
let val = buf[offset];
let mul = 1;
let i = 0;
while (++i < byteLength && (mul *= 0x100)) {
val += buf[offset + i] * mul;
}
mul *= 0x80;
if (val >= mul)
val -= Math.pow(2, 8 * byteLength);
return val;
}
/**
* Best effort approach to write 64 but signed integer, little endian.
* Note that JavasScript is limited to 2^53 - 1 bit.
*/
function writeIntLE(buf, value, offset, byteLength) {
value = +value;
offset = offset >>> 0;
let i = 0;
let mul = 1;
let sub = 0;
buf[offset] = value & 0xFF;
while (++i < byteLength && (mul *= 0x100)) {
if (value < 0 && sub === 0 && buf[offset + i - 1] !== 0) {
sub = 1;
}
buf[offset + i] = ((value / mul) >> 0) - sub & 0xFF;
}
return offset + byteLength;
}
exports.writeIntLE = writeIntLE;
/**
* Best effort approach to read up to 64 bit unsigned integer, big endian.
* Note that JavasScript is limited to 2^53 - 1 bit.
*/
function readUIntBE(buf, offset, byteLength) {
offset = offset >>> 0;
byteLength = byteLength >>> 0;
let val = buf[offset + --byteLength];
let mul = 1;
while (byteLength > 0 && (mul *= 0x100)) {
val += buf[offset + --byteLength] * mul;
}
return val;
}
exports.readUIntBE = readUIntBE;
/**
* Best effort approach to write up to 64 bit unsigned integer, big endian.
* Note that JavasScript is limited to 2^53 - 1 bit.
*/
function writeUIntBE(buf, value, offset, byteLength) {
value = +value;
offset = offset >>> 0;
byteLength = byteLength >>> 0;
let i = byteLength - 1;
let mul = 1;
buf[offset + i] = value & 0xFF;
while (--i >= 0 && (mul *= 0x100)) {
buf[offset + i] = (value / mul) & 0xFF;
}
return offset + byteLength;
}
exports.writeUIntBE = writeUIntBE;
/**
* Best effort approach to read 64 but signed integer, big endian.
* Note that JavasScript is limited to 2^53 - 1 bit.
*/
function readIntBE(buf, offset, byteLength) {
offset = offset >>> 0;
byteLength = byteLength >>> 0;
let i = byteLength;
let mul = 1;
let val = buf[offset + --i];
while (i > 0 && (mul *= 0x100)) {
val += buf[offset + --i] * mul;
}
mul *= 0x80;
if (val >= mul)
val -= Math.pow(2, 8 * byteLength);
return val;
}
exports.readIntBE = readIntBE;
/**
* Best effort approach to write 64 but signed integer, big endian.
* Note that JavasScript is limited to 2^53 - 1 bit.
*/
function writeIntBE(buf, value, offset, byteLength) {
value = +value;
offset = offset >>> 0;
let i = byteLength - 1;
let mul = 1;
let sub = 0;
buf[offset + i] = value & 0xFF;
while (--i >= 0 && (mul *= 0x100)) {
if (value < 0 && sub === 0 && buf[offset + i + 1] !== 0) {
sub = 1;
}
buf[offset + i] = ((value / mul) >> 0) - sub & 0xFF;
}
return offset + byteLength;
}
exports.writeIntBE = writeIntBE;
//# sourceMappingURL=index.js.map
/***/ }),
/***/ 451:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const ReadStreamTokenizer_1 = __webpack_require__(452);
const BufferTokenizer_1 = __webpack_require__(465);
var peek_readable_1 = __webpack_require__(454);
exports.EndOfStreamError = peek_readable_1.EndOfStreamError;
/**
* Construct ReadStreamTokenizer from given Stream.
* Will set fileSize, if provided given Stream has set the .path property/
* @param stream - Read from Node.js Stream.Readable
* @param fileInfo - Pass the file information, like size and MIME-type of the correspnding stream.
* @returns ReadStreamTokenizer
*/
function fromStream(stream, fileInfo) {
fileInfo = fileInfo ? fileInfo : {};
return new ReadStreamTokenizer_1.ReadStreamTokenizer(stream, fileInfo);
}
exports.fromStream = fromStream;
/**
* Construct ReadStreamTokenizer from given Buffer.
* @param buffer - Buffer to tokenize
* @param fileInfo - Pass additional file information to the tokenizer
* @returns BufferTokenizer
*/
function fromBuffer(buffer, fileInfo) {
return new BufferTokenizer_1.BufferTokenizer(buffer, fileInfo);
}
exports.fromBuffer = fromBuffer;
//# sourceMappingURL=core.js.map
/***/ }),
/***/ 452:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/* WEBPACK VAR INJECTION */(function(Buffer) {
Object.defineProperty(exports, "__esModule", { value: true });
const AbstractTokenizer_1 = __webpack_require__(453);
const peek_readable_1 = __webpack_require__(454);
const _debug = __webpack_require__(456);
const debug = _debug('strtok3:ReadStreamTokenizer');
const maxBufferSize = 1 * 1000 * 1000;
class ReadStreamTokenizer extends AbstractTokenizer_1.AbstractTokenizer {
constructor(stream, fileInfo) {
super(fileInfo);
this.streamReader = new peek_readable_1.StreamReader(stream);
}
/**
* Get file information, an HTTP-client may implement this doing a HEAD request
* @return Promise with file information
*/
async getFileInfo() {
return this.fileInfo;
}
/**
* Read buffer from tokenizer
* @param buffer - Target buffer to fill with data read from the tokenizer-stream
* @param options - Read behaviour options
* @returns Promise with number of bytes read
*/
async readBuffer(buffer, options) {
// const _offset = position ? position : this.position;
// debug(`readBuffer ${_offset}...${_offset + length - 1}`);
let offset = 0;
let length = buffer.length;
if (options) {
if (Number.isInteger(options.length)) {
length = options.length;
}
else {
length -= options.offset || 0;
}
if (options.position) {
const skipBytes = options.position - this.position;
if (skipBytes > 0) {
await this.ignore(skipBytes);
return this.readBuffer(buffer, options);
}
else if (skipBytes < 0) {
throw new Error('`options.position` can be less than `tokenizer.position`');
}
}
if (options.offset) {
offset = options.offset;
}
}
if (length === 0) {
return 0;
}
const bytesRead = await this.streamReader.read(buffer, offset, length);
this.position += bytesRead;
if ((!options || !options.mayBeLess) && bytesRead < length) {
throw new peek_readable_1.EndOfStreamError();
}
return bytesRead;
}
/**
* Peek (read ahead) buffer from tokenizer
* @param buffer - Target buffer to write the data read to
* @param options - Read behaviour options
* @returns Promise with number of bytes peeked
*/
async peekBuffer(buffer, options) {
// const _offset = position ? position : this.position;
// debug(`peek ${_offset}...${_offset + length - 1}`);
let offset = 0;
let bytesRead;
let length = buffer.length;
if (options) {
if (options.offset) {
offset = options.offset;
}
if (Number.isInteger(options.length)) {
length = options.length;
}
else {
length -= options.offset || 0;
}
if (options.position) {
const skipBytes = options.position - this.position;
if (skipBytes > 0) {
const skipBuffer = Buffer.alloc(length + skipBytes);
bytesRead = await this.peekBuffer(skipBuffer, { mayBeLess: options.mayBeLess });
skipBuffer.copy(buffer, offset, skipBytes);
return bytesRead - skipBytes;
}
else if (skipBytes < 0) {
throw new Error('Cannot peek from a negative offset in a stream');
}
}
}
bytesRead = await this.streamReader.peek(buffer, offset, length);
if ((!options || !options.mayBeLess) && bytesRead < length) {
throw new peek_readable_1.EndOfStreamError();
}
return bytesRead;
}
async ignore(length) {
debug(`ignore ${this.position}...${this.position + length - 1}`);
const bufSize = Math.min(maxBufferSize, length);
const buf = Buffer.alloc(bufSize);
let totBytesRead = 0;
while (totBytesRead < length) {
const remaining = length - totBytesRead;
const bytesRead = await this.readBuffer(buf, { length: Math.min(bufSize, remaining) });
if (bytesRead < 0) {
return bytesRead;
}
totBytesRead += bytesRead;
}
return totBytesRead;
}
}
exports.ReadStreamTokenizer = ReadStreamTokenizer;
//# sourceMappingURL=ReadStreamTokenizer.js.map
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(429).Buffer))
/***/ }),
/***/ 453:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/* WEBPACK VAR INJECTION */(function(Buffer) {
Object.defineProperty(exports, "__esModule", { value: true });
const peek_readable_1 = __webpack_require__(454);
/**
* Core tokenizer
*/
class AbstractTokenizer {
constructor(fileInfo) {
/**
* Tokenizer-stream position
*/
this.position = 0;
this.numBuffer = Buffer.alloc(10);
this.fileInfo = fileInfo ? fileInfo : {};
}
/**
* Read a token from the tokenizer-stream
* @param token - The token to read
* @param position - If provided, the desired position in the tokenizer-stream
* @returns Promise with token data
*/
async readToken(token, position) {
const buffer = Buffer.alloc(token.len);
const len = await this.readBuffer(buffer, { position });
if (len < token.len)
throw new peek_readable_1.EndOfStreamError();
return token.get(buffer, 0);
}
/**
* Peek a token from the tokenizer-stream.
* @param token - Token to peek from the tokenizer-stream.
* @param position - Offset where to begin reading within the file. If position is null, data will be read from the current file position.
* @returns Promise with token data
*/
async peekToken(token, position = this.position) {
const buffer = Buffer.alloc(token.len);
const len = await this.peekBuffer(buffer, { position });
if (len < token.len)
throw new peek_readable_1.EndOfStreamError();
return token.get(buffer, 0);
}
/**
* Read a numeric token from the stream
* @param token - Numeric token
* @returns Promise with number
*/
async readNumber(token) {
const len = await this.readBuffer(this.numBuffer, { length: token.len });
if (len < token.len)
throw new peek_readable_1.EndOfStreamError();
return token.get(this.numBuffer, 0);
}
/**
* Read a numeric token from the stream
* @param token - Numeric token
* @returns Promise with number
*/
async peekNumber(token) {
const len = await this.peekBuffer(this.numBuffer, { length: token.len });
if (len < token.len)
throw new peek_readable_1.EndOfStreamError();
return token.get(this.numBuffer, 0);
}
async close() {
// empty
}
}
exports.AbstractTokenizer = AbstractTokenizer;
//# sourceMappingURL=AbstractTokenizer.js.map
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(429).Buffer))
/***/ }),
/***/ 454:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const assert = __webpack_require__(12);
const EndOfFileStream_1 = __webpack_require__(455);
var EndOfFileStream_2 = __webpack_require__(455);
exports.EndOfStreamError = EndOfFileStream_2.EndOfStreamError;
class Deferred {
constructor() {
this.promise = new Promise((resolve, reject) => {
this.reject = reject;
this.resolve = resolve;
});
}
}
const maxStreamReadSize = 1 * 1024 * 1024; // Maximum request length on read-stream operation
class StreamReader {
constructor(s) {
this.s = s;
this.endOfStream = false;
/**
* Store peeked data
* @type {Array}
*/
this.peekQueue = [];
if (!s.read || !s.once) {
throw new Error('Expected an instance of stream.Readable');
}
this.s.once('end', () => this.reject(new EndOfFileStream_1.EndOfStreamError()));
this.s.once('error', err => this.reject(err));
this.s.once('close', () => this.reject(new Error('Stream closed')));
}
/**
* Read ahead (peek) from stream. Subsequent read or peeks will return the same data
* @param buffer - Buffer to store data read from stream in
* @param offset - Offset buffer
* @param length - Number of bytes to read
* @returns Number of bytes peeked
*/
async peek(buffer, offset, length) {
const bytesRead = await this.read(buffer, offset, length);
this.peekQueue.push(buffer.slice(offset, offset + bytesRead)); // Put read data back to peek buffer
return bytesRead;
}
/**
* Read chunk from stream
* @param buffer - Target buffer to store data read from stream in
* @param offset - Offset of target buffer
* @param length - Number of bytes to read
* @returns Number of bytes read
*/
async read(buffer, offset, length) {
if (length === 0) {
return 0;
}
if (this.peekQueue.length === 0 && this.endOfStream) {
throw new EndOfFileStream_1.EndOfStreamError();
}
let remaining = length;
let bytesRead = 0;
// consume peeked data first
while (this.peekQueue.length > 0 && remaining > 0) {
const peekData = this.peekQueue.pop(); // Front of queue
const lenCopy = Math.min(peekData.length, remaining);
peekData.copy(buffer, offset + bytesRead, 0, lenCopy);
bytesRead += lenCopy;
remaining -= lenCopy;
if (lenCopy < peekData.length) {
// remainder back to queue
this.peekQueue.push(peekData.slice(lenCopy));
}
}
// continue reading from stream if required
while (remaining > 0 && !this.endOfStream) {
const reqLen = Math.min(remaining, maxStreamReadSize);
const chunkLen = await this._read(buffer, offset + bytesRead, reqLen);
bytesRead += chunkLen;
if (chunkLen < reqLen)
break;
remaining -= chunkLen;
}
return bytesRead;
}
/**
* Read chunk from stream
* @param buffer Buffer to store data read from stream in
* @param offset Offset buffer
* @param length Number of bytes to read
* @returns {any}
*/
async _read(buffer, offset, length) {
assert.ok(!this.request, 'Concurrent read operation?');
const readBuffer = this.s.read(length);
if (readBuffer) {
readBuffer.copy(buffer, offset);
return readBuffer.length;
}
else {
this.request = {
buffer,
offset,
length,
deferred: new Deferred()
};
this.s.once('readable', () => {
this.tryRead();
});
return this.request.deferred.promise.then(n => {
this.request = null;
return n;
}, err => {
this.request = null;
throw err;
});
}
}
tryRead() {
const readBuffer = this.s.read(this.request.length);
if (readBuffer) {
readBuffer.copy(this.request.buffer, this.request.offset);
this.request.deferred.resolve(readBuffer.length);
}
else {
this.s.once('readable', () => {
this.tryRead();
});
}
}
reject(err) {
this.endOfStream = true;
if (this.request) {
this.request.deferred.reject(err);
this.request = null;
}
}
}
exports.StreamReader = StreamReader;
//# sourceMappingURL=index.js.map
/***/ }),
/***/ 455:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.defaultMessages = 'End-Of-Stream';
/**
* Thrown on read operation of the end of file or stream has been reached
*/
class EndOfStreamError extends Error {
constructor() {
super(exports.defaultMessages);
}
}
exports.EndOfStreamError = EndOfStreamError;
//# sourceMappingURL=EndOfFileStream.js.map
/***/ }),
/***/ 456:
/***/ (function(module, exports, __webpack_require__) {
/* WEBPACK VAR INJECTION */(function(process) {/**
* Detect Electron renderer / nwjs process, which is node, but we should
* treat as a browser.
*/
if (typeof process === 'undefined' || process.type === 'renderer' || process.browser === true || process.__nwjs) {
module.exports = __webpack_require__(457);
} else {
module.exports = __webpack_require__(460);
}
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(8)))
/***/ }),
/***/ 457:
/***/ (function(module, exports, __webpack_require__) {
/* WEBPACK VAR INJECTION */(function(console, process) {/* eslint-env browser */
/**
* This is the web browser implementation of `debug()`.
*/
exports.log = log;
exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;
exports.storage = localstorage();
/**
* Colors.
*/
exports.colors = [
'#0000CC',
'#0000FF',
'#0033CC',
'#0033FF',
'#0066CC',
'#0066FF',
'#0099CC',
'#0099FF',
'#00CC00',
'#00CC33',
'#00CC66',
'#00CC99',
'#00CCCC',
'#00CCFF',
'#3300CC',
'#3300FF',
'#3333CC',
'#3333FF',
'#3366CC',
'#3366FF',
'#3399CC',
'#3399FF',
'#33CC00',
'#33CC33',
'#33CC66',
'#33CC99',
'#33CCCC',
'#33CCFF',
'#6600CC',
'#6600FF',
'#6633CC',
'#6633FF',
'#66CC00',
'#66CC33',
'#9900CC',
'#9900FF',
'#9933CC',
'#9933FF',
'#99CC00',
'#99CC33',
'#CC0000',
'#CC0033',
'#CC0066',
'#CC0099',
'#CC00CC',
'#CC00FF',
'#CC3300',
'#CC3333',
'#CC3366',
'#CC3399',
'#CC33CC',
'#CC33FF',
'#CC6600',
'#CC6633',
'#CC9900',
'#CC9933',
'#CCCC00',
'#CCCC33',
'#FF0000',
'#FF0033',
'#FF0066',
'#FF0099',
'#FF00CC',
'#FF00FF',
'#FF3300',
'#FF3333',
'#FF3366',
'#FF3399',
'#FF33CC',
'#FF33FF',
'#FF6600',
'#FF6633',
'#FF9900',
'#FF9933',
'#FFCC00',
'#FFCC33'
];
/**
* Currently only WebKit-based Web Inspectors, Firefox >= v31,
* and the Firebug extension (any Firefox version) are known
* to support "%c" CSS customizations.
*
* TODO: add a `localStorage` variable to explicitly enable/disable colors
*/
// eslint-disable-next-line complexity
function useColors() {
// NB: In an Electron preload script, document will be defined but not fully
// initialized. Since we know we're in Chrome, we'll just detect this case
// explicitly
if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
return true;
}
// Internet Explorer and Edge do not support colors.
if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
return false;
}
// Is webkit? http://stackoverflow.com/a/16459606/376773
// document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
// Is firebug? http://stackoverflow.com/a/398120/376773
(typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
// Is firefox >= v31?
// https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
// Double check webkit in userAgent just in case we are in a worker
(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
}
/**
* Colorize log arguments if enabled.
*
* @api public
*/
function formatArgs(args) {
args[0] = (this.useColors ? '%c' : '') +
this.namespace +
(this.useColors ? ' %c' : ' ') +
args[0] +
(this.useColors ? '%c ' : ' ') +
'+' + module.exports.humanize(this.diff);
if (!this.useColors) {
return;
}
const c = 'color: ' + this.color;
args.splice(1, 0, c, 'color: inherit');
// The final "%c" is somewhat tricky, because there could be other
// arguments passed either before or after the %c, so we need to
// figure out the correct index to insert the CSS into
let index = 0;
let lastC = 0;
args[0].replace(/%[a-zA-Z%]/g, match => {
if (match === '%%') {
return;
}
index++;
if (match === '%c') {
// We only are interested in the *last* %c
// (the user may have provided their own)
lastC = index;
}
});
args.splice(lastC, 0, c);
}
/**
* Invokes `console.log()` when available.
* No-op when `console.log` is not a "function".
*
* @api public
*/
function log(...args) {
// This hackery is required for IE8/9, where
// the `console.log` function doesn't have 'apply'
return typeof console === 'object' &&
console.log &&
console.log(...args);
}
/**
* Save `namespaces`.
*
* @param {String} namespaces
* @api private
*/
function save(namespaces) {
try {
if (namespaces) {
exports.storage.setItem('debug', namespaces);
} else {
exports.storage.removeItem('debug');
}
} catch (error) {
// Swallow
// XXX (@Qix-) should we be logging these?
}
}
/**
* Load `namespaces`.
*
* @return {String} returns the previously persisted debug modes
* @api private
*/
function load() {
let r;
try {
r = exports.storage.getItem('debug');
} catch (error) {
// Swallow
// XXX (@Qix-) should we be logging these?
}
// If debug isn't set in LS, and we're in Electron, try to load $DEBUG
if (!r && typeof process !== 'undefined' && 'env' in process) {
r = process.env.DEBUG;
}
return r;
}
/**
* Localstorage attempts to return the localstorage.
*
* This is necessary because safari throws
* when a user disables cookies/localstorage
* and you attempt to access it.
*
* @return {LocalStorage}
* @api private
*/
function localstorage() {
try {
// TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
// The Browser also has localStorage in the global context.
return localStorage;
} catch (error) {
// Swallow
// XXX (@Qix-) should we be logging these?
}
}
module.exports = __webpack_require__(458)(exports);
const {formatters} = module.exports;
/**
* Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
*/
formatters.j = function (v) {
try {
return JSON.stringify(v);
} catch (error) {
return '[UnexpectedJSONParseError]: ' + error.message;
}
};
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(5), __webpack_require__(8)))
/***/ }),
/***/ 458:
/***/ (function(module, exports, __webpack_require__) {
/**
* This is the common logic for both the Node.js and web browser
* implementations of `debug()`.
*/
function setup(env) {
createDebug.debug = createDebug;
createDebug.default = createDebug;
createDebug.coerce = coerce;
createDebug.disable = disable;
createDebug.enable = enable;
createDebug.enabled = enabled;
createDebug.humanize = __webpack_require__(459);
Object.keys(env).forEach(key => {
createDebug[key] = env[key];
});
/**
* Active `debug` instances.
*/
createDebug.instances = [];
/**
* The currently active debug mode names, and names to skip.
*/
createDebug.names = [];
createDebug.skips = [];
/**
* Map of special "%n" handling functions, for the debug "format" argument.
*
* Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
*/
createDebug.formatters = {};
/**
* Selects a color for a debug namespace
* @param {String} namespace The namespace string for the for the debug instance to be colored
* @return {Number|String} An ANSI color code for the given namespace
* @api private
*/
function selectColor(namespace) {
let hash = 0;
for (let i = 0; i < namespace.length; i++) {
hash = ((hash << 5) - hash) + namespace.charCodeAt(i);
hash |= 0; // Convert to 32bit integer
}
return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
}
createDebug.selectColor = selectColor;
/**
* Create a debugger with the given `namespace`.
*
* @param {String} namespace
* @return {Function}
* @api public
*/
function createDebug(namespace) {
let prevTime;
function debug(...args) {
// Disabled?
if (!debug.enabled) {
return;
}
const self = debug;
// Set `diff` timestamp
const curr = Number(new Date());
const ms = curr - (prevTime || curr);
self.diff = ms;
self.prev = prevTime;
self.curr = curr;
prevTime = curr;
args[0] = createDebug.coerce(args[0]);
if (typeof args[0] !== 'string') {
// Anything else let's inspect with %O
args.unshift('%O');
}
// Apply any `formatters` transformations
let index = 0;
args[0] = args[0].replace(/%([a-zA-Z%])/g, (match, format) => {
// If we encounter an escaped % then don't increase the array index
if (match === '%%') {
return match;
}
index++;
const formatter = createDebug.formatters[format];
if (typeof formatter === 'function') {
const val = args[index];
match = formatter.call(self, val);
// Now we need to remove `args[index]` since it's inlined in the `format`
args.splice(index, 1);
index--;
}
return match;
});
// Apply env-specific formatting (colors, etc.)
createDebug.formatArgs.call(self, args);
const logFn = self.log || createDebug.log;
logFn.apply(self, args);
}
debug.namespace = namespace;
debug.enabled = createDebug.enabled(namespace);
debug.useColors = createDebug.useColors();
debug.color = selectColor(namespace);
debug.destroy = destroy;
debug.extend = extend;
// Debug.formatArgs = formatArgs;
// debug.rawLog = rawLog;
// env-specific initialization logic for debug instances
if (typeof createDebug.init === 'function') {
createDebug.init(debug);
}
createDebug.instances.push(debug);
return debug;
}
function destroy() {
const index = createDebug.instances.indexOf(this);
if (index !== -1) {
createDebug.instances.splice(index, 1);
return true;
}
return false;
}
function extend(namespace, delimiter) {
const newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
newDebug.log = this.log;
return newDebug;
}
/**
* Enables a debug mode by namespaces. This can include modes
* separated by a colon and wildcards.
*
* @param {String} namespaces
* @api public
*/
function enable(namespaces) {
createDebug.save(namespaces);
createDebug.names = [];
createDebug.skips = [];
let i;
const split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
const len = split.length;
for (i = 0; i < len; i++) {
if (!split[i]) {
// ignore empty strings
continue;
}
namespaces = split[i].replace(/\*/g, '.*?');
if (namespaces[0] === '-') {
createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
} else {
createDebug.names.push(new RegExp('^' + namespaces + '$'));
}
}
for (i = 0; i < createDebug.instances.length; i++) {
const instance = createDebug.instances[i];
instance.enabled = createDebug.enabled(instance.namespace);
}
}
/**
* Disable debug output.
*
* @return {String} namespaces
* @api public
*/
function disable() {
const namespaces = [
...createDebug.names.map(toNamespace),
...createDebug.skips.map(toNamespace).map(namespace => '-' + namespace)
].join(',');
createDebug.enable('');
return namespaces;
}
/**
* Returns true if the given mode name is enabled, false otherwise.
*
* @param {String} name
* @return {Boolean}
* @api public
*/
function enabled(name) {
if (name[name.length - 1] === '*') {
return true;
}
let i;
let len;
for (i = 0, len = createDebug.skips.length; i < len; i++) {
if (createDebug.skips[i].test(name)) {
return false;
}
}
for (i = 0, len = createDebug.names.length; i < len; i++) {
if (createDebug.names[i].test(name)) {
return true;
}
}
return false;
}
/**
* Convert regexp to namespace
*
* @param {RegExp} regxep
* @return {String} namespace
* @api private
*/
function toNamespace(regexp) {
return regexp.toString()
.substring(2, regexp.toString().length - 2)
.replace(/\.\*\?$/, '*');
}
/**
* Coerce `val`.
*
* @param {Mixed} val
* @return {Mixed}
* @api private
*/
function coerce(val) {
if (val instanceof Error) {
return val.stack || val.message;
}
return val;
}
createDebug.enable(createDebug.load());
return createDebug;
}
module.exports = setup;
/***/ }),
/***/ 459:
/***/ (function(module, exports) {
/**
* Helpers.
*/
var s = 1000;
var m = s * 60;
var h = m * 60;
var d = h * 24;
var w = d * 7;
var y = d * 365.25;
/**
* Parse or format the given `val`.
*
* Options:
*
* - `long` verbose formatting [false]
*
* @param {String|Number} val
* @param {Object} [options]
* @throws {Error} throw an error if val is not a non-empty string or a number
* @return {String|Number}
* @api public
*/
module.exports = function(val, options) {
options = options || {};
var type = typeof val;
if (type === 'string' && val.length > 0) {
return parse(val);
} else if (type === 'number' && isFinite(val)) {
return options.long ? fmtLong(val) : fmtShort(val);
}
throw new Error(
'val is not a non-empty string or a valid number. val=' +
JSON.stringify(val)
);
};
/**
* Parse the given `str` and return milliseconds.
*
* @param {String} str
* @return {Number}
* @api private
*/
function parse(str) {
str = String(str);
if (str.length > 100) {
return;
}
var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
str
);
if (!match) {
return;
}
var n = parseFloat(match[1]);
var type = (match[2] || 'ms').toLowerCase();
switch (type) {
case 'years':
case 'year':
case 'yrs':
case 'yr':
case 'y':
return n * y;
case 'weeks':
case 'week':
case 'w':
return n * w;
case 'days':
case 'day':
case 'd':
return n * d;
case 'hours':
case 'hour':
case 'hrs':
case 'hr':
case 'h':
return n * h;
case 'minutes':
case 'minute':
case 'mins':
case 'min':
case 'm':
return n * m;
case 'seconds':
case 'second':
case 'secs':
case 'sec':
case 's':
return n * s;
case 'milliseconds':
case 'millisecond':
case 'msecs':
case 'msec':
case 'ms':
return n;
default:
return undefined;
}
}
/**
* Short format for `ms`.
*
* @param {Number} ms
* @return {String}
* @api private
*/
function fmtShort(ms) {
var msAbs = Math.abs(ms);
if (msAbs >= d) {
return Math.round(ms / d) + 'd';
}
if (msAbs >= h) {
return Math.round(ms / h) + 'h';
}
if (msAbs >= m) {
return Math.round(ms / m) + 'm';
}
if (msAbs >= s) {
return Math.round(ms / s) + 's';
}
return ms + 'ms';
}
/**
* Long format for `ms`.
*
* @param {Number} ms
* @return {String}
* @api private
*/
function fmtLong(ms) {
var msAbs = Math.abs(ms);
if (msAbs >= d) {
return plural(ms, msAbs, d, 'day');
}
if (msAbs >= h) {
return plural(ms, msAbs, h, 'hour');
}
if (msAbs >= m) {
return plural(ms, msAbs, m, 'minute');
}
if (msAbs >= s) {
return plural(ms, msAbs, s, 'second');
}
return ms + ' ms';
}
/**
* Pluralization helper.
*/
function plural(ms, msAbs, n, name) {
var isPlural = msAbs >= n * 1.5;
return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
}
/***/ }),
/***/ 460:
/***/ (function(module, exports, __webpack_require__) {
/* WEBPACK VAR INJECTION */(function(process) {/**
* Module dependencies.
*/
const tty = __webpack_require__(461);
const util = __webpack_require__(7);
/**
* This is the Node.js implementation of `debug()`.
*/
exports.init = init;
exports.log = log;
exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;
/**
* Colors.
*/
exports.colors = [6, 2, 3, 4, 5, 1];
try {
// Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json)
// eslint-disable-next-line import/no-extraneous-dependencies
const supportsColor = __webpack_require__(462);
if (supportsColor && (supportsColor.stderr || supportsColor).level >= 2) {
exports.colors = [
20,
21,
26,
27,
32,
33,
38,
39,
40,
41,
42,
43,
44,
45,
56,
57,
62,
63,
68,
69,
74,
75,
76,
77,
78,
79,
80,
81,
92,
93,
98,
99,
112,
113,
128,
129,
134,
135,
148,
149,
160,
161,
162,
163,
164,
165,
166,
167,
168,
169,
170,
171,
172,
173,
178,
179,
184,
185,
196,
197,
198,
199,
200,
201,
202,
203,
204,
205,
206,
207,
208,
209,
214,
215,
220,
221
];
}
} catch (error) {
// Swallow - we only care if `supports-color` is available; it doesn't have to be.
}
/**
* Build up the default `inspectOpts` object from the environment variables.
*
* $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
*/
exports.inspectOpts = Object.keys(process.env).filter(key => {
return /^debug_/i.test(key);
}).reduce((obj, key) => {
// Camel-case
const prop = key
.substring(6)
.toLowerCase()
.replace(/_([a-z])/g, (_, k) => {
return k.toUpperCase();
});
// Coerce string value into JS value
let val = process.env[key];
if (/^(yes|on|true|enabled)$/i.test(val)) {
val = true;
} else if (/^(no|off|false|disabled)$/i.test(val)) {
val = false;
} else if (val === 'null') {
val = null;
} else {
val = Number(val);
}
obj[prop] = val;
return obj;
}, {});
/**
* Is stdout a TTY? Colored output is enabled when `true`.
*/
function useColors() {
return 'colors' in exports.inspectOpts ?
Boolean(exports.inspectOpts.colors) :
tty.isatty(process.stderr.fd);
}
/**
* Adds ANSI color escape codes if enabled.
*
* @api public
*/
function formatArgs(args) {
const {namespace: name, useColors} = this;
if (useColors) {
const c = this.color;
const colorCode = '\u001B[3' + (c < 8 ? c : '8;5;' + c);
const prefix = ` ${colorCode};1m${name} \u001B[0m`;
args[0] = prefix + args[0].split('\n').join('\n' + prefix);
args.push(colorCode + 'm+' + module.exports.humanize(this.diff) + '\u001B[0m');
} else {
args[0] = getDate() + name + ' ' + args[0];
}
}
function getDate() {
if (exports.inspectOpts.hideDate) {
return '';
}
return new Date().toISOString() + ' ';
}
/**
* Invokes `util.format()` with the specified arguments and writes to stderr.
*/
function log(...args) {
return process.stderr.write(util.format(...args) + '\n');
}
/**
* Save `namespaces`.
*
* @param {String} namespaces
* @api private
*/
function save(namespaces) {
if (namespaces) {
process.env.DEBUG = namespaces;
} else {
// If you set a process.env field to null or undefined, it gets cast to the
// string 'null' or 'undefined'. Just delete instead.
delete process.env.DEBUG;
}
}
/**
* Load `namespaces`.
*
* @return {String} returns the previously persisted debug modes
* @api private
*/
function load() {
return process.env.DEBUG;
}
/**
* Init logic for `debug` instances.
*
* Create a new `inspectOpts` object in case `useColors` is set
* differently for a particular `debug` instance.
*/
function init(debug) {
debug.inspectOpts = {};
const keys = Object.keys(exports.inspectOpts);
for (let i = 0; i < keys.length; i++) {
debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
}
}
module.exports = __webpack_require__(458)(exports);
const {formatters} = module.exports;
/**
* Map %o to `util.inspect()`, all on a single line.
*/
formatters.o = function (v) {
this.inspectOpts.colors = this.useColors;
return util.inspect(v, this.inspectOpts)
.replace(/\s*\n\s*/g, ' ');
};
/**
* Map %O to `util.inspect()`, allowing multiple lines if needed.
*/
formatters.O = function (v) {
this.inspectOpts.colors = this.useColors;
return util.inspect(v, this.inspectOpts);
};
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(8)))
/***/ }),
/***/ 461:
/***/ (function(module, exports) {
exports.isatty = function () { return false; };
function ReadStream() {
throw new Error('tty.ReadStream is not implemented');
}
exports.ReadStream = ReadStream;
function WriteStream() {
throw new Error('tty.ReadStream is not implemented');
}
exports.WriteStream = WriteStream;
/***/ }),
/***/ 462:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/* WEBPACK VAR INJECTION */(function(process) {
const os = __webpack_require__(463);
const hasFlag = __webpack_require__(464);
const env = process.env;
let forceColor;
if (hasFlag('no-color') ||
hasFlag('no-colors') ||
hasFlag('color=false')) {
forceColor = false;
} else if (hasFlag('color') ||
hasFlag('colors') ||
hasFlag('color=true') ||
hasFlag('color=always')) {
forceColor = true;
}
if ('FORCE_COLOR' in env) {
forceColor = env.FORCE_COLOR.length === 0 || parseInt(env.FORCE_COLOR, 10) !== 0;
}
function translateLevel(level) {
if (level === 0) {
return false;
}
return {
level,
hasBasic: true,
has256: level >= 2,
has16m: level >= 3
};
}
function supportsColor(stream) {
if (forceColor === false) {
return 0;
}
if (hasFlag('color=16m') ||
hasFlag('color=full') ||
hasFlag('color=truecolor')) {
return 3;
}
if (hasFlag('color=256')) {
return 2;
}
if (stream && !stream.isTTY && forceColor !== true) {
return 0;
}
const min = forceColor ? 1 : 0;
if (process.platform === 'win32') {
// Node.js 7.5.0 is the first version of Node.js to include a patch to
// libuv that enables 256 color output on Windows. Anything earlier and it
// won't work. However, here we target Node.js 8 at minimum as it is an LTS
// release, and Node.js 7 is not. Windows 10 build 10586 is the first Windows
// release that supports 256 colors. Windows 10 build 14931 is the first release
// that supports 16m/TrueColor.
const osRelease = os.release().split('.');
if (
Number(process.versions.node.split('.')[0]) >= 8 &&
Number(osRelease[0]) >= 10 &&
Number(osRelease[2]) >= 10586
) {
return Number(osRelease[2]) >= 14931 ? 3 : 2;
}
return 1;
}
if ('CI' in env) {
if (['TRAVIS', 'CIRCLECI', 'APPVEYOR', 'GITLAB_CI'].some(sign => sign in env) || env.CI_NAME === 'codeship') {
return 1;
}
return min;
}
if ('TEAMCITY_VERSION' in env) {
return /^(9\.(0*[1-9]\d*)\.|\d{2,}\.)/.test(env.TEAMCITY_VERSION) ? 1 : 0;
}
if (env.COLORTERM === 'truecolor') {
return 3;
}
if ('TERM_PROGRAM' in env) {
const version = parseInt((env.TERM_PROGRAM_VERSION || '').split('.')[0], 10);
switch (env.TERM_PROGRAM) {
case 'iTerm.app':
return version >= 3 ? 3 : 2;
case 'Apple_Terminal':
return 2;
// No default
}
}
if (/-256(color)?$/i.test(env.TERM)) {
return 2;
}
if (/^screen|^xterm|^vt100|^vt220|^rxvt|color|ansi|cygwin|linux/i.test(env.TERM)) {
return 1;
}
if ('COLORTERM' in env) {
return 1;
}
if (env.TERM === 'dumb') {
return min;
}
return min;
}
function getSupportLevel(stream) {
const level = supportsColor(stream);
return translateLevel(level);
}
module.exports = {
supportsColor: getSupportLevel,
stdout: getSupportLevel(process.stdout),
stderr: getSupportLevel(process.stderr)
};
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(8)))
/***/ }),
/***/ 463:
/***/ (function(module, exports) {
exports.endianness = function () { return 'LE' };
exports.hostname = function () {
if (typeof location !== 'undefined') {
return location.hostname
}
else return '';
};
exports.loadavg = function () { return [] };
exports.uptime = function () { return 0 };
exports.freemem = function () {
return Number.MAX_VALUE;
};
exports.totalmem = function () {
return Number.MAX_VALUE;
};
exports.cpus = function () { return [] };
exports.type = function () { return 'Browser' };
exports.release = function () {
if (typeof navigator !== 'undefined') {
return navigator.appVersion;
}
return '';
};
exports.networkInterfaces
= exports.getNetworkInterfaces
= function () { return {} };
exports.arch = function () { return 'javascript' };
exports.platform = function () { return 'browser' };
exports.tmpdir = exports.tmpDir = function () {
return '/tmp';
};
exports.EOL = '\n';
exports.homedir = function () {
return '/'
};
/***/ }),
/***/ 464:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/* WEBPACK VAR INJECTION */(function(process) {
module.exports = (flag, argv) => {
argv = argv || process.argv;
const prefix = flag.startsWith('-') ? '' : (flag.length === 1 ? '-' : '--');
const pos = argv.indexOf(prefix + flag);
const terminatorPos = argv.indexOf('--');
return pos !== -1 && (terminatorPos === -1 ? true : pos < terminatorPos);
};
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(8)))
/***/ }),
/***/ 465:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const peek_readable_1 = __webpack_require__(454);
class BufferTokenizer {
/**
* Construct BufferTokenizer
* @param buffer - Buffer to tokenize
* @param fileInfo - Pass additional file information to the tokenizer
*/
constructor(buffer, fileInfo) {
this.buffer = buffer;
this.position = 0;
this.fileInfo = fileInfo ? fileInfo : {};
this.fileInfo.size = this.fileInfo.size ? this.fileInfo.size : buffer.length;
}
/**
* Read buffer from tokenizer
* @param buffer
* @param options - Read behaviour options
* @returns {Promise<number>}
*/
async readBuffer(buffer, options) {
if (options && options.position) {
if (options.position < this.position) {
throw new Error('`options.position` can be less than `tokenizer.position`');
}
this.position = options.position;
}
return this.peekBuffer(buffer, options).then(bytesRead => {
this.position += bytesRead;
return bytesRead;
});
}
/**
* Peek (read ahead) buffer from tokenizer
* @param buffer
* @param options - Read behaviour options
* @returns {Promise<number>}
*/
async peekBuffer(buffer, options) {
let offset = 0;
let length = buffer.length;
let position = this.position;
if (options) {
if (options.position) {
if (options.position < this.position) {
throw new Error('`options.position` can be less than `tokenizer.position`');
}
position = options.position;
}
if (Number.isInteger(options.length)) {
length = options.length;
}
else {
length -= options.offset || 0;
}
if (options.offset) {
offset = options.offset;
}
}
if (length === 0) {
return Promise.resolve(0);
}
position = position || this.position;
if (!length) {
length = buffer.length;
}
const bytes2read = Math.min(this.buffer.length - position, length);
if ((!options || !options.mayBeLess) && bytes2read < length) {
throw new peek_readable_1.EndOfStreamError();
}
else {
this.buffer.copy(buffer, offset, position, position + bytes2read);
return bytes2read;
}
}
async readToken(token, position) {
this.position = position || this.position;
try {
const tv = this.peekToken(token, this.position);
this.position += token.len;
return tv;
}
catch (err) {
this.position += this.buffer.length - position;
throw err;
}
}
async peekToken(token, position = this.position) {
if (this.buffer.length - position < token.len) {
throw new peek_readable_1.EndOfStreamError();
}
return token.get(this.buffer, position);
}
async readNumber(token) {
return this.readToken(token);
}
async peekNumber(token) {
return this.peekToken(token);
}
/**
* @return actual number of bytes ignored
*/
async ignore(length) {
const bytesIgnored = Math.min(this.buffer.length - this.position, length);
this.position += bytesIgnored;
return bytesIgnored;
}
async close() {
// empty
}
}
exports.BufferTokenizer = BufferTokenizer;
//# sourceMappingURL=BufferTokenizer.js.map
/***/ }),
/***/ 466:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
exports.stringToBytes = string => [...string].map(character => character.charCodeAt(0));
const uint8ArrayUtf8ByteString = (array, start, end) => {
return String.fromCharCode(...array.slice(start, end));
};
exports.tarHeaderChecksumMatches = buffer => { // Does not check if checksum field characters are valid
if (buffer.length < 512) { // `tar` header size, cannot compute checksum without it
return false;
}
const MASK_8TH_BIT = 0x80;
let sum = 256; // Intitalize sum, with 256 as sum of 8 spaces in checksum field
let signedBitSum = 0; // Initialize signed bit sum
for (let i = 0; i < 148; i++) {
const byte = buffer[i];
sum += byte;
signedBitSum += byte & MASK_8TH_BIT; // Add signed bit to signed bit sum
}
// Skip checksum field
for (let i = 156; i < 512; i++) {
const byte = buffer[i];
sum += byte;
signedBitSum += byte & MASK_8TH_BIT; // Add signed bit to signed bit sum
}
const readSum = parseInt(uint8ArrayUtf8ByteString(buffer, 148, 154), 8); // Read sum in header
// Some implementations compute checksum incorrectly using signed bytes
return (
// Checksum in header equals the sum we calculated
readSum === sum ||
// Checksum in header equals sum we calculated plus signed-to-unsigned delta
readSum === (sum - (signedBitSum << 1))
);
};
exports.uint8ArrayUtf8ByteString = uint8ArrayUtf8ByteString;
/**
ID3 UINT32 sync-safe tokenizer token.
28 bits (representing up to 256MB) integer, the msb is 0 to avoid "false syncsignals".
*/
exports.uint32SyncSafeToken = {
get: (buffer, offset) => {
return (buffer[offset + 3] & 0x7F) | ((buffer[offset + 2]) << 7) | ((buffer[offset + 1]) << 14) | ((buffer[offset]) << 21);
},
len: 4
};
/***/ }),
/***/ 467:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
module.exports = {
extensions: [
'jpg',
'png',
'apng',
'gif',
'webp',
'flif',
'cr2',
'cr3',
'orf',
'arw',
'dng',
'nef',
'rw2',
'raf',
'tif',
'bmp',
'icns',
'jxr',
'psd',
'zip',
'tar',
'rar',
'gz',
'bz2',
'7z',
'dmg',
'mp4',
'mid',
'mkv',
'webm',
'mov',
'avi',
'mpg',
'mp2',
'mp3',
'm4a',
'oga',
'ogg',
'ogv',
'opus',
'flac',
'wav',
'spx',
'amr',
'pdf',
'epub',
'exe',
'swf',
'rtf',
'wasm',
'woff',
'woff2',
'eot',
'ttf',
'otf',
'ico',
'flv',
'ps',
'xz',
'sqlite',
'nes',
'crx',
'xpi',
'cab',
'deb',
'ar',
'rpm',
'Z',
'lz',
'msi',
'mxf',
'mts',
'blend',
'bpg',
'docx',
'pptx',
'xlsx',
'3gp',
'3g2',
'jp2',
'jpm',
'jpx',
'mj2',
'aif',
'qcp',
'odt',
'ods',
'odp',
'xml',
'mobi',
'heic',
'cur',
'ktx',
'ape',
'wv',
'wmv',
'wma',
'dcm',
'ics',
'glb',
'pcap',
'dsf',
'lnk',
'alias',
'voc',
'ac3',
'm4v',
'm4p',
'm4b',
'f4v',
'f4p',
'f4b',
'f4a',
'mie',
'asf',
'ogm',
'ogx',
'mpc',
'arrow',
'shp',
'aac',
'mp1',
'it',
's3m',
'xm',
'ai',
'skp',
'avif',
'eps',
'lzh'
],
mimeTypes: [
'image/jpeg',
'image/png',
'image/gif',
'image/webp',
'image/flif',
'image/x-canon-cr2',
'image/x-canon-cr3',
'image/tiff',
'image/bmp',
'image/vnd.ms-photo',
'image/vnd.adobe.photoshop',
'application/epub+zip',
'application/x-xpinstall',
'application/vnd.oasis.opendocument.text',
'application/vnd.oasis.opendocument.spreadsheet',
'application/vnd.oasis.opendocument.presentation',
'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
'application/vnd.openxmlformats-officedocument.presentationml.presentation',
'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
'application/zip',
'application/x-tar',
'application/x-rar-compressed',
'application/gzip',
'application/x-bzip2',
'application/x-7z-compressed',
'application/x-apple-diskimage',
'application/x-apache-arrow',
'video/mp4',
'audio/midi',
'video/x-matroska',
'video/webm',
'video/quicktime',
'video/vnd.avi',
'audio/vnd.wave',
'audio/qcelp',
'audio/x-ms-wma',
'video/x-ms-asf',
'application/vnd.ms-asf',
'video/mpeg',
'video/3gpp',
'audio/mpeg',
'audio/mp4', // RFC 4337
'audio/opus',
'video/ogg',
'audio/ogg',
'application/ogg',
'audio/x-flac',
'audio/ape',
'audio/wavpack',
'audio/amr',
'application/pdf',
'application/x-msdownload',
'application/x-shockwave-flash',
'application/rtf',
'application/wasm',
'font/woff',
'font/woff2',
'application/vnd.ms-fontobject',
'font/ttf',
'font/otf',
'image/x-icon',
'video/x-flv',
'application/postscript',
'application/eps',
'application/x-xz',
'application/x-sqlite3',
'application/x-nintendo-nes-rom',
'application/x-google-chrome-extension',
'application/vnd.ms-cab-compressed',
'application/x-deb',
'application/x-unix-archive',
'application/x-rpm',
'application/x-compress',
'application/x-lzip',
'application/x-msi',
'application/x-mie',
'application/mxf',
'video/mp2t',
'application/x-blender',
'image/bpg',
'image/jp2',
'image/jpx',
'image/jpm',
'image/mj2',
'audio/aiff',
'application/xml',
'application/x-mobipocket-ebook',
'image/heif',
'image/heif-sequence',
'image/heic',
'image/heic-sequence',
'image/icns',
'image/ktx',
'application/dicom',
'audio/x-musepack',
'text/calendar',
'model/gltf-binary',
'application/vnd.tcpdump.pcap',
'audio/x-dsf', // Non-standard
'application/x.ms.shortcut', // Invented by us
'application/x.apple.alias', // Invented by us
'audio/x-voc',
'audio/vnd.dolby.dd-raw',
'audio/x-m4a',
'image/apng',
'image/x-olympus-orf',
'image/x-sony-arw',
'image/x-adobe-dng',
'image/x-nikon-nef',
'image/x-panasonic-rw2',
'image/x-fujifilm-raf',
'video/x-m4v',
'video/3gpp2',
'application/x-esri-shape',
'audio/aac',
'audio/x-it',
'audio/x-s3m',
'audio/x-xm',
'video/MP1S',
'video/MP2P',
'application/vnd.sketchup.skp',
'image/avif',
'application/x-lzh-compressed'
]
};
/***/ }),
/***/ 5:
/***/ (function(module, exports, __webpack_require__) {
/* WEBPACK VAR INJECTION */(function(global) {/*global window, global*/
var util = __webpack_require__(7)
var assert = __webpack_require__(12)
function now() { return new Date().getTime() }
var slice = Array.prototype.slice
var console
var times = {}
if (typeof global !== "undefined" && global.console) {
console = global.console
} else if (typeof window !== "undefined" && window.console) {
console = window.console
} else {
console = {}
}
var functions = [
[log, "log"],
[info, "info"],
[warn, "warn"],
[error, "error"],
[time, "time"],
[timeEnd, "timeEnd"],
[trace, "trace"],
[dir, "dir"],
[consoleAssert, "assert"]
]
for (var i = 0; i < functions.length; i++) {
var tuple = functions[i]
var f = tuple[0]
var name = tuple[1]
if (!console[name]) {
console[name] = f
}
}
module.exports = console
function log() {}
function info() {
console.log.apply(console, arguments)
}
function warn() {
console.log.apply(console, arguments)
}
function error() {
console.warn.apply(console, arguments)
}
function time(label) {
times[label] = now()
}
function timeEnd(label) {
var time = times[label]
if (!time) {
throw new Error("No such label: " + label)
}
delete times[label]
var duration = now() - time
console.log(label + ": " + duration + "ms")
}
function trace() {
var err = new Error()
err.name = "Trace"
err.message = util.format.apply(null, arguments)
console.error(err.stack)
}
function dir(object) {
console.log(util.inspect(object) + "\n")
}
function consoleAssert(expression) {
if (!expression) {
var arr = slice.call(arguments, 1)
assert.ok(false, util.format.apply(null, arr))
}
}
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(6)))
/***/ }),
/***/ 6:
/***/ (function(module, exports) {
var g;
// This works in non-strict mode
g = (function() {
return this;
})();
try {
// This works if eval is allowed (see CSP)
g = g || new Function("return this")();
} catch (e) {
// This works if the window reference is available
if (typeof window === "object") g = window;
}
// g can still be undefined, but nothing to do about it...
// We return undefined, instead of nothing here, so it's
// easier to handle this case. if(!global) { ...}
module.exports = g;
/***/ }),
/***/ 7:
/***/ (function(module, exports, __webpack_require__) {
/* WEBPACK VAR INJECTION */(function(process, console) {// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
var getOwnPropertyDescriptors = Object.getOwnPropertyDescriptors ||
function getOwnPropertyDescriptors(obj) {
var keys = Object.keys(obj);
var descriptors = {};
for (var i = 0; i < keys.length; i++) {
descriptors[keys[i]] = Object.getOwnPropertyDescriptor(obj, keys[i]);
}
return descriptors;
};
var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
if (!isString(f)) {
var objects = [];
for (var i = 0; i < arguments.length; i++) {
objects.push(inspect(arguments[i]));
}
return objects.join(' ');
}
var i = 1;
var args = arguments;
var len = args.length;
var str = String(f).replace(formatRegExp, function(x) {
if (x === '%%') return '%';
if (i >= len) return x;
switch (x) {
case '%s': return String(args[i++]);
case '%d': return Number(args[i++]);
case '%j':
try {
return JSON.stringify(args[i++]);
} catch (_) {
return '[Circular]';
}
default:
return x;
}
});
for (var x = args[i]; i < len; x = args[++i]) {
if (isNull(x) || !isObject(x)) {
str += ' ' + x;
} else {
str += ' ' + inspect(x);
}
}
return str;
};
// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
if (typeof process !== 'undefined' && process.noDeprecation === true) {
return fn;
}
// Allow for deprecating things in the process of starting up.
if (typeof process === 'undefined') {
return function() {
return exports.deprecate(fn, msg).apply(this, arguments);
};
}
var warned = false;
function deprecated() {
if (!warned) {
if (process.throwDeprecation) {
throw new Error(msg);
} else if (process.traceDeprecation) {
console.trace(msg);
} else {
console.error(msg);
}
warned = true;
}
return fn.apply(this, arguments);
}
return deprecated;
};
var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
if (isUndefined(debugEnviron))
debugEnviron = process.env.NODE_DEBUG || '';
set = set.toUpperCase();
if (!debugs[set]) {
if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
var pid = process.pid;
debugs[set] = function() {
var msg = exports.format.apply(exports, arguments);
console.error('%s %d: %s', set, pid, msg);
};
} else {
debugs[set] = function() {};
}
}
return debugs[set];
};
/**
* Echos the value of a value. Trys to print the value out
* in the best way possible given the different types.
*
* @param {Object} obj The object to print out.
* @param {Object} opts Optional options object that alters the output.
*/
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
// default options
var ctx = {
seen: [],
stylize: stylizeNoColor
};
// legacy...
if (arguments.length >= 3) ctx.depth = arguments[2];
if (arguments.length >= 4) ctx.colors = arguments[3];
if (isBoolean(opts)) {
// legacy...
ctx.showHidden = opts;
} else if (opts) {
// got an "options" object
exports._extend(ctx, opts);
}
// set default options
if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
if (isUndefined(ctx.depth)) ctx.depth = 2;
if (isUndefined(ctx.colors)) ctx.colors = false;
if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
if (ctx.colors) ctx.stylize = stylizeWithColor;
return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;
// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
'bold' : [1, 22],
'italic' : [3, 23],
'underline' : [4, 24],
'inverse' : [7, 27],
'white' : [37, 39],
'grey' : [90, 39],
'black' : [30, 39],
'blue' : [34, 39],
'cyan' : [36, 39],
'green' : [32, 39],
'magenta' : [35, 39],
'red' : [31, 39],
'yellow' : [33, 39]
};
// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
'special': 'cyan',
'number': 'yellow',
'boolean': 'yellow',
'undefined': 'grey',
'null': 'bold',
'string': 'green',
'date': 'magenta',
// "name": intentionally not styling
'regexp': 'red'
};
function stylizeWithColor(str, styleType) {
var style = inspect.styles[styleType];
if (style) {
return '\u001b[' + inspect.colors[style][0] + 'm' + str +
'\u001b[' + inspect.colors[style][1] + 'm';
} else {
return str;
}
}
function stylizeNoColor(str, styleType) {
return str;
}
function arrayToHash(array) {
var hash = {};
array.forEach(function(val, idx) {
hash[val] = true;
});
return hash;
}
function formatValue(ctx, value, recurseTimes) {
// Provide a hook for user-specified inspect functions.
// Check that value is an object with an inspect function on it
if (ctx.customInspect &&
value &&
isFunction(value.inspect) &&
// Filter out the util module, it's inspect function is special
value.inspect !== exports.inspect &&
// Also filter out any prototype objects using the circular check.
!(value.constructor && value.constructor.prototype === value)) {
var ret = value.inspect(recurseTimes, ctx);
if (!isString(ret)) {
ret = formatValue(ctx, ret, recurseTimes);
}
return ret;
}
// Primitive types cannot have properties
var primitive = formatPrimitive(ctx, value);
if (primitive) {
return primitive;
}
// Look up the keys of the object.
var keys = Object.keys(value);
var visibleKeys = arrayToHash(keys);
if (ctx.showHidden) {
keys = Object.getOwnPropertyNames(value);
}
// IE doesn't make error fields non-enumerable
// http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
if (isError(value)
&& (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
return formatError(value);
}
// Some type of object without properties can be shortcutted.
if (keys.length === 0) {
if (isFunction(value)) {
var name = value.name ? ': ' + value.name : '';
return ctx.stylize('[Function' + name + ']', 'special');
}
if (isRegExp(value)) {
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
}
if (isDate(value)) {
return ctx.stylize(Date.prototype.toString.call(value), 'date');
}
if (isError(value)) {
return formatError(value);
}
}
var base = '', array = false, braces = ['{', '}'];
// Make Array say that they are Array
if (isArray(value)) {
array = true;
braces = ['[', ']'];
}
// Make functions say that they are functions
if (isFunction(value)) {
var n = value.name ? ': ' + value.name : '';
base = ' [Function' + n + ']';
}
// Make RegExps say that they are RegExps
if (isRegExp(value)) {
base = ' ' + RegExp.prototype.toString.call(value);
}
// Make dates with properties first say the date
if (isDate(value)) {
base = ' ' + Date.prototype.toUTCString.call(value);
}
// Make error with message first say the error
if (isError(value)) {
base = ' ' + formatError(value);
}
if (keys.length === 0 && (!array || value.length == 0)) {
return braces[0] + base + braces[1];
}
if (recurseTimes < 0) {
if (isRegExp(value)) {
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
} else {
return ctx.stylize('[Object]', 'special');
}
}
ctx.seen.push(value);
var output;
if (array) {
output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
} else {
output = keys.map(function(key) {
return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
});
}
ctx.seen.pop();
return reduceToSingleString(output, base, braces);
}
function formatPrimitive(ctx, value) {
if (isUndefined(value))
return ctx.stylize('undefined', 'undefined');
if (isString(value)) {
var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
.replace(/'/g, "\\'")
.replace(/\\"/g, '"') + '\'';
return ctx.stylize(simple, 'string');
}
if (isNumber(value))
return ctx.stylize('' + value, 'number');
if (isBoolean(value))
return ctx.stylize('' + value, 'boolean');
// For some reason typeof null is "object", so special case here.
if (isNull(value))
return ctx.stylize('null', 'null');
}
function formatError(value) {
return '[' + Error.prototype.toString.call(value) + ']';
}
function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
var output = [];
for (var i = 0, l = value.length; i < l; ++i) {
if (hasOwnProperty(value, String(i))) {
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
String(i), true));
} else {
output.push('');
}
}
keys.forEach(function(key) {
if (!key.match(/^\d+$/)) {
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
key, true));
}
});
return output;
}
function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
var name, str, desc;
desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
if (desc.get) {
if (desc.set) {
str = ctx.stylize('[Getter/Setter]', 'special');
} else {
str = ctx.stylize('[Getter]', 'special');
}
} else {
if (desc.set) {
str = ctx.stylize('[Setter]', 'special');
}
}
if (!hasOwnProperty(visibleKeys, key)) {
name = '[' + key + ']';
}
if (!str) {
if (ctx.seen.indexOf(desc.value) < 0) {
if (isNull(recurseTimes)) {
str = formatValue(ctx, desc.value, null);
} else {
str = formatValue(ctx, desc.value, recurseTimes - 1);
}
if (str.indexOf('\n') > -1) {
if (array) {
str = str.split('\n').map(function(line) {
return ' ' + line;
}).join('\n').substr(2);
} else {
str = '\n' + str.split('\n').map(function(line) {
return ' ' + line;
}).join('\n');
}
}
} else {
str = ctx.stylize('[Circular]', 'special');
}
}
if (isUndefined(name)) {
if (array && key.match(/^\d+$/)) {
return str;
}
name = JSON.stringify('' + key);
if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
name = name.substr(1, name.length - 2);
name = ctx.stylize(name, 'name');
} else {
name = name.replace(/'/g, "\\'")
.replace(/\\"/g, '"')
.replace(/(^"|"$)/g, "'");
name = ctx.stylize(name, 'string');
}
}
return name + ': ' + str;
}
function reduceToSingleString(output, base, braces) {
var numLinesEst = 0;
var length = output.reduce(function(prev, cur) {
numLinesEst++;
if (cur.indexOf('\n') >= 0) numLinesEst++;
return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
}, 0);
if (length > 60) {
return braces[0] +
(base === '' ? '' : base + '\n ') +
' ' +
output.join(',\n ') +
' ' +
braces[1];
}
return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}
// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
return Array.isArray(ar);
}
exports.isArray = isArray;
function isBoolean(arg) {
return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;
function isNull(arg) {
return arg === null;
}
exports.isNull = isNull;
function isNullOrUndefined(arg) {
return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;
function isNumber(arg) {
return typeof arg === 'number';
}
exports.isNumber = isNumber;
function isString(arg) {
return typeof arg === 'string';
}
exports.isString = isString;
function isSymbol(arg) {
return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;
function isUndefined(arg) {
return arg === void 0;
}
exports.isUndefined = isUndefined;
function isRegExp(re) {
return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;
function isObject(arg) {
return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;
function isDate(d) {
return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;
function isError(e) {
return isObject(e) &&
(objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;
function isFunction(arg) {
return typeof arg === 'function';
}
exports.isFunction = isFunction;
function isPrimitive(arg) {
return arg === null ||
typeof arg === 'boolean' ||
typeof arg === 'number' ||
typeof arg === 'string' ||
typeof arg === 'symbol' || // ES6 symbol
typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;
exports.isBuffer = __webpack_require__(9);
function objectToString(o) {
return Object.prototype.toString.call(o);
}
function pad(n) {
return n < 10 ? '0' + n.toString(10) : n.toString(10);
}
var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
'Oct', 'Nov', 'Dec'];
// 26 Feb 16:19:34
function timestamp() {
var d = new Date();
var time = [pad(d.getHours()),
pad(d.getMinutes()),
pad(d.getSeconds())].join(':');
return [d.getDate(), months[d.getMonth()], time].join(' ');
}
// log is just a thin wrapper to console.log that prepends a timestamp
exports.log = function() {
console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
};
/**
* Inherit the prototype methods from one constructor into another.
*
* The Function.prototype.inherits from lang.js rewritten as a standalone
* function (not on Function.prototype). NOTE: If this file is to be loaded
* during bootstrapping this function needs to be rewritten using some native
* functions as prototype setup using normal JavaScript does not work as
* expected during bootstrapping (see mirror.js in r114903).
*
* @param {function} ctor Constructor function which needs to inherit the
* prototype.
* @param {function} superCtor Constructor function to inherit prototype from.
*/
exports.inherits = __webpack_require__(10);
exports._extend = function(origin, add) {
// Don't do anything if add isn't an object
if (!add || !isObject(add)) return origin;
var keys = Object.keys(add);
var i = keys.length;
while (i--) {
origin[keys[i]] = add[keys[i]];
}
return origin;
};
function hasOwnProperty(obj, prop) {
return Object.prototype.hasOwnProperty.call(obj, prop);
}
var kCustomPromisifiedSymbol = typeof Symbol !== 'undefined' ? Symbol('util.promisify.custom') : undefined;
exports.promisify = function promisify(original) {
if (typeof original !== 'function')
throw new TypeError('The "original" argument must be of type Function');
if (kCustomPromisifiedSymbol && original[kCustomPromisifiedSymbol]) {
var fn = original[kCustomPromisifiedSymbol];
if (typeof fn !== 'function') {
throw new TypeError('The "util.promisify.custom" argument must be of type Function');
}
Object.defineProperty(fn, kCustomPromisifiedSymbol, {
value: fn, enumerable: false, writable: false, configurable: true
});
return fn;
}
function fn() {
var promiseResolve, promiseReject;
var promise = new Promise(function (resolve, reject) {
promiseResolve = resolve;
promiseReject = reject;
});
var args = [];
for (var i = 0; i < arguments.length; i++) {
args.push(arguments[i]);
}
args.push(function (err, value) {
if (err) {
promiseReject(err);
} else {
promiseResolve(value);
}
});
try {
original.apply(this, args);
} catch (err) {
promiseReject(err);
}
return promise;
}
Object.setPrototypeOf(fn, Object.getPrototypeOf(original));
if (kCustomPromisifiedSymbol) Object.defineProperty(fn, kCustomPromisifiedSymbol, {
value: fn, enumerable: false, writable: false, configurable: true
});
return Object.defineProperties(
fn,
getOwnPropertyDescriptors(original)
);
}
exports.promisify.custom = kCustomPromisifiedSymbol
function callbackifyOnRejected(reason, cb) {
// `!reason` guard inspired by bluebird (Ref: https://goo.gl/t5IS6M).
// Because `null` is a special error value in callbacks which means "no error
// occurred", we error-wrap so the callback consumer can distinguish between
// "the promise rejected with null" or "the promise fulfilled with undefined".
if (!reason) {
var newReason = new Error('Promise was rejected with a falsy value');
newReason.reason = reason;
reason = newReason;
}
return cb(reason);
}
function callbackify(original) {
if (typeof original !== 'function') {
throw new TypeError('The "original" argument must be of type Function');
}
// We DO NOT return the promise as it gives the user a false sense that
// the promise is actually somehow related to the callback's execution
// and that the callback throwing will reject the promise.
function callbackified() {
var args = [];
for (var i = 0; i < arguments.length; i++) {
args.push(arguments[i]);
}
var maybeCb = args.pop();
if (typeof maybeCb !== 'function') {
throw new TypeError('The last argument must be of type Function');
}
var self = this;
var cb = function() {
return maybeCb.apply(self, arguments);
};
// In true node style we process the callback on `nextTick` with all the
// implications (stack, `uncaughtException`, `async_hooks`)
original.apply(this, args)
.then(function(ret) { process.nextTick(cb, null, ret) },
function(rej) { process.nextTick(callbackifyOnRejected, rej, cb) });
}
Object.setPrototypeOf(callbackified, Object.getPrototypeOf(original));
Object.defineProperties(callbackified,
getOwnPropertyDescriptors(original));
return callbackified;
}
exports.callbackify = callbackify;
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(8), __webpack_require__(5)))
/***/ }),
/***/ 8:
/***/ (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.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; };
/***/ }),
/***/ 9:
/***/ (function(module, exports) {
module.exports = function isBuffer(arg) {
return arg && typeof arg === 'object'
&& typeof arg.copy === 'function'
&& typeof arg.fill === 'function'
&& typeof arg.readUInt8 === 'function';
}
/***/ })
/******/ });
//# sourceMappingURL=file-type.js.map