sbosse/jam
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
970afdaa32
jam/js/ui/webui/buffer.js

3856 lines
150 KiB
JavaScript
Raw Blame History

/*!
* The buffer module from node.js, for the browser.
* Can be used with SharedArrayBuffers!
* Uses Uin8Array as data buffer (only slow buffers).
*
* @author Feross Aboukhadijeh <https://feross.org>
*
* @license MIT
*
* https://github.com/feross/buffer
*/
/* eslint-disable no-proto */
BufferArray = {};
BufferArray.init=function () {
/*
Requires for SharedArrayBuffer -> Newer browsers need the following headers (and a HTTP-FILE service):
'Content-Type': 'text/html; charset=UTF-8',
'Cross-Origin-Opener-Policy': 'same-origin',
'Cross-Origin-Embedder-Policy': 'require-corp',
*/
// 'use strict'
if (typeof BufferArray == 'undefined') BufferArray = {};
var exports=BufferArray;
var base64 = {};
(function (exports) {
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
}
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')
}
var validLen = b64.indexOf('=')
if (validLen === -1) validLen = len
var placeHoldersLen = validLen === len
? 0
: 4 - (validLen % 4)
return [validLen, placeHoldersLen]
}
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
for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
}
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('')
}
})(base64);
const ieee754 = {
read : function(buffer, offset, isBE, mLen, nBytes) {
var e, m,
eLen = nBytes * 8 - mLen - 1,
eMax = (1 << eLen) - 1,
eBias = eMax >> 1,
nBits = -7,
i = isBE ? 0 : (nBytes - 1),
d = isBE ? 1 : -1,
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);
},
write : function(buffer, value, offset, isBE, mLen, nBytes) {
var e, m, c,
eLen = nBytes * 8 - mLen - 1,
eMax = (1 << eLen) - 1,
eBias = eMax >> 1,
rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0),
i = isBE ? (nBytes - 1) : 0,
d = isBE ? -1 : 1,
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;
}
}
const customInspectSymbol =
(typeof Symbol === 'function' && typeof Symbol['for'] === 'function') // eslint-disable-line dot-notation
? Symbol['for']('nodejs.util.inspect.custom') // eslint-disable-line dot-notation
: null
exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50
const K_MAX_LENGTH = 0x7fffffff
exports.kMaxLength = K_MAX_LENGTH
/**
* If `Buffer.TYPED_ARRAY_SUPPORT`:
* === true Use Uint8Array implementation (fastest)
* === false Print warning and recommend using `buffer` v4.x which has an Object
* implementation (most compatible, even IE6)
*
* Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
* Opera 11.6+, iOS 4.2+.
*
* We report that the browser does not support typed arrays if the are not subclassable
* using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
* (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
* for __proto__ and has a buggy typed array implementation.
*/
Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
typeof console.error === 'function') {
console.error(
'This browser lacks typed array (Uint8Array) support which is required by ' +
'`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
)
}
function typedArraySupport () {
// Can typed array instances can be augmented?
try {
const arr = new Uint8Array(1)
const proto = { foo: function () { return 42 } }
Object.setPrototypeOf(proto, Uint8Array.prototype)
Object.setPrototypeOf(arr, proto)
return arr.foo() === 42
} catch (e) {
return false
}
}
Object.defineProperty(Buffer.prototype, 'parent', {
enumerable: true,
get: function () {
if (!Buffer.isBuffer(this)) return undefined
return this.buffer
}
})
Object.defineProperty(Buffer.prototype, 'offset', {
enumerable: true,
get: function () {
if (!Buffer.isBuffer(this)) return undefined
return this.byteOffset
}
})
function createBuffer (length) {
if (length > K_MAX_LENGTH) {
throw new RangeError('The value "' + length + '" is invalid for option "size"')
}
// Return an augmented `Uint8Array` instance
const buf = new Uint8Array(length)
Object.setPrototypeOf(buf, Buffer.prototype)
return buf
}
/**
* The Buffer constructor returns instances of `Uint8Array` that have their
* prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
* `Uint8Array`, so the returned instances will have all the node `Buffer` methods
* and the `Uint8Array` methods. Square bracket notation works as expected -- it
* returns a single octet.
*
* The `Uint8Array` prototype remains unmodified.
*/
function Buffer (arg, encodingOrOffset, length) {
// Common case.
if (typeof arg === 'number') {
if (typeof encodingOrOffset === 'string') {
throw new TypeError(
'The "string" argument must be of type string. Received type number'
)
}
return allocUnsafe(arg)
}
return from(arg, encodingOrOffset, length)
}
Buffer.poolSize = 8192 // not used by this implementation
function from (value, encodingOrOffset, length) {
if (typeof value === 'string') {
return fromString(value, encodingOrOffset)
}
if (ArrayBuffer.isView(value)) {
return fromArrayView(value)
}
if (value == null) {
throw new TypeError(
'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
'or Array-like Object. Received type ' + (typeof value)
)
}
if (isInstance(value, ArrayBuffer) ||
(value && isInstance(value.buffer, ArrayBuffer))) {
return fromArrayBuffer(value, encodingOrOffset, length)
}
if (typeof SharedArrayBuffer !== 'undefined' &&
(isInstance(value, SharedArrayBuffer) ||
(value && isInstance(value.buffer, SharedArrayBuffer)))) {
return fromArrayBuffer(value, encodingOrOffset, length)
}
if (typeof value === 'number') {
throw new TypeError(
'The "value" argument must not be of type number. Received type number'
)
}
const valueOf = value.valueOf && value.valueOf()
if (valueOf != null && valueOf !== value) {
return Buffer.from(valueOf, encodingOrOffset, length)
}
const b = fromObject(value)
if (b) return b
if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
typeof value[Symbol.toPrimitive] === 'function') {
return Buffer.from(value[Symbol.toPrimitive]('string'), encodingOrOffset, length)
}
throw new TypeError(
'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
'or Array-like Object. Received type ' + (typeof value)
)
}
/**
* Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
* if value is a number.
* Buffer.from(str[, encoding])
* Buffer.from(array)
* Buffer.from(buffer)
* Buffer.from(arrayBuffer[, byteOffset[, length]])
**/
Buffer.from = function (value, encodingOrOffset, length) {
return from(value, encodingOrOffset, length)
}
// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
// https://github.com/feross/buffer/pull/148
Object.setPrototypeOf(Buffer.prototype, Uint8Array.prototype)
Object.setPrototypeOf(Buffer, Uint8Array)
function assertSize (size) {
if (typeof size !== 'number') {
throw new TypeError('"size" argument must be of type number')
} else if (size < 0) {
throw new RangeError('The value "' + size + '" is invalid for option "size"')
}
}
function alloc (size, fill, encoding) {
assertSize(size)
if (size <= 0) {
return createBuffer(size)
}
if (fill !== undefined) {
// Only pay attention to encoding if it's a string. This
// prevents accidentally sending in a number that would
// be interpreted as a start offset.
return typeof encoding === 'string'
? createBuffer(size).fill(fill, encoding)
: createBuffer(size).fill(fill)
}
return createBuffer(size)
}
/**
* Creates a new filled Buffer instance.
* alloc(size[, fill[, encoding]])
**/
Buffer.alloc = function (size, fill, encoding) {
return alloc(size, fill, encoding)
}
function allocUnsafe (size) {
assertSize(size)
return createBuffer(size < 0 ? 0 : checked(size) | 0)
}
/**
* Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
* */
Buffer.allocUnsafe = function (size) {
return allocUnsafe(size)
}
/**
* Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
*/
Buffer.allocUnsafeSlow = function (size) {
return allocUnsafe(size)
}
function fromString (string, encoding) {
if (typeof encoding !== 'string' || encoding === '') {
encoding = 'utf8'
}
if (!Buffer.isEncoding(encoding)) {
throw new TypeError('Unknown encoding: ' + encoding)
}
const length = byteLength(string, encoding) | 0
let buf = createBuffer(length)
const actual = buf.write(string, encoding)
if (actual !== length) {
// Writing a hex string, for example, that contains invalid characters will
// cause everything after the first invalid character to be ignored. (e.g.
// 'abxxcd' will be treated as 'ab')
buf = buf.slice(0, actual)
}
return buf
}
function fromArrayLike (array) {
const length = array.length < 0 ? 0 : checked(array.length) | 0
const buf = createBuffer(length)
for (let i = 0; i < length; i += 1) {
buf[i] = array[i] & 255
}
return buf
}
function fromArrayView (arrayView) {
if (isInstance(arrayView, Uint8Array)) {
const copy = new Uint8Array(arrayView)
return fromArrayBuffer(copy.buffer, copy.byteOffset, copy.byteLength)
}
return fromArrayLike(arrayView)
}
function fromArrayBuffer (array, byteOffset, length) {
if (byteOffset < 0 || array.byteLength < byteOffset) {
throw new RangeError('"offset" is outside of buffer bounds')
}
if (array.byteLength < byteOffset + (length || 0)) {
throw new RangeError('"length" is outside of buffer bounds')
}
let buf
if (byteOffset === undefined && length === undefined) {
buf = new Uint8Array(array)
} else if (length === undefined) {
buf = new Uint8Array(array, byteOffset)
} else {
buf = new Uint8Array(array, byteOffset, length)
}
// Return an augmented `Uint8Array` instance
Object.setPrototypeOf(buf, Buffer.prototype)
return buf
}
function fromObject (obj) {
if (Buffer.isBuffer(obj)) {
const len = checked(obj.length) | 0
const buf = createBuffer(len)
if (buf.length === 0) {
return buf
}
obj.copy(buf, 0, 0, len)
return buf
}
if (obj.length !== undefined) {
if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
return createBuffer(0)
}
return fromArrayLike(obj)
}
if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
return fromArrayLike(obj.data)
}
}
function checked (length) {
// Note: cannot use `length < K_MAX_LENGTH` here because that fails when
// length is NaN (which is otherwise coerced to zero.)
if (length >= K_MAX_LENGTH) {
throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
}
return length | 0
}
function SlowBuffer (length) {
if (+length != length) { // eslint-disable-line eqeqeq
length = 0
}
return Buffer.alloc(+length)
}
Buffer.isBuffer = function isBuffer (b) {
return b != null && b._isBuffer === true &&
b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false
}
Buffer.compare = function compare (a, b) {
if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
throw new TypeError(
'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
)
}
if (a === b) return 0
let x = a.length
let y = b.length
for (let i = 0, len = Math.min(x, y); i < len; ++i) {
if (a[i] !== b[i]) {
x = a[i]
y = b[i]
break
}
}
if (x < y) return -1
if (y < x) return 1
return 0
}
Buffer.isEncoding = function isEncoding (encoding) {
switch (String(encoding).toLowerCase()) {
case 'hex':
case 'utf8':
case 'utf-8':
case 'ascii':
case 'latin1':
case 'binary':
case 'base64':
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return true
default:
return false
}
}
Buffer.concat = function concat (list, length) {
if (!Array.isArray(list)) {
throw new TypeError('"list" argument must be an Array of Buffers')
}
if (list.length === 0) {
return Buffer.alloc(0)
}
let i
if (length === undefined) {
length = 0
for (i = 0; i < list.length; ++i) {
length += list[i].length
}
}
const buffer = Buffer.allocUnsafe(length)
let pos = 0
for (i = 0; i < list.length; ++i) {
let buf = list[i]
if (isInstance(buf, Uint8Array)) {
if (pos + buf.length > buffer.length) {
if (!Buffer.isBuffer(buf)) {
buf = Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength)
}
buf.copy(buffer, pos)
} else {
Uint8Array.prototype.set.call(
buffer,
buf,
pos
)
}
} else if (!Buffer.isBuffer(buf)) {
throw new TypeError('"list" argument must be an Array of Buffers')
} else {
buf.copy(buffer, pos)
}
pos += buf.length
}
return buffer
}
function byteLength (string, encoding) {
if (Buffer.isBuffer(string)) {
return string.length
}
if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
return string.byteLength
}
if (typeof string !== 'string') {
throw new TypeError(
'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
'Received type ' + typeof string
)
}
const len = string.length
const mustMatch = (arguments.length > 2 && arguments[2] === true)
if (!mustMatch && len === 0) return 0
// Use a for loop to avoid recursion
let loweredCase = false
for (;;) {
switch (encoding) {
case 'ascii':
case 'latin1':
case 'binary':
return len
case 'utf8':
case 'utf-8':
return utf8ToBytes(string).length
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return len * 2
case 'hex':
return len >>> 1
case 'base64':
return base64ToBytes(string).length
default:
if (loweredCase) {
return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8
}
encoding = ('' + encoding).toLowerCase()
loweredCase = true
}
}
}
Buffer.byteLength = byteLength
function slowToString (encoding, start, end) {
let 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 coercion to uint32. This will also coerce falsey/NaN values to 0.
end >>>= 0
start >>>= 0
if (end <= start) {
return ''
}
if (!encoding) encoding = 'utf8'
while (true) {
switch (encoding) {
case 'hex':
return hexSlice(this, start, end)
case 'utf8':
case 'utf-8':
return utf8Slice(this, start, end)
case 'ascii':
return asciiSlice(this, start, end)
case 'latin1':
case 'binary':
return latin1Slice(this, start, end)
case 'base64':
return base64Slice(this, start, end)
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return utf16leSlice(this, start, end)
default:
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
encoding = (encoding + '').toLowerCase()
loweredCase = true
}
}
}
// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
// reliably in a browserify context because there could be multiple different
// copies of the 'buffer' package in use. This method works even for Buffer
// instances that were created from another copy of the `buffer` package.
// See: https://github.com/feross/buffer/issues/154
Buffer.prototype._isBuffer = true
function swap (b, n, m) {
const i = b[n]
b[n] = b[m]
b[m] = i
}
Buffer.prototype.swap16 = function swap16 () {
const len = this.length
if (len % 2 !== 0) {
throw new RangeError('Buffer size must be a multiple of 16-bits')
}
for (let i = 0; i < len; i += 2) {
swap(this, i, i + 1)
}
return this
}
Buffer.prototype.swap32 = function swap32 () {
const len = this.length
if (len % 4 !== 0) {
throw new RangeError('Buffer size must be a multiple of 32-bits')
}
for (let i = 0; i < len; i += 4) {
swap(this, i, i + 3)
swap(this, i + 1, i + 2)
}
return this
}
Buffer.prototype.swap64 = function swap64 () {
const len = this.length
if (len % 8 !== 0) {
throw new RangeError('Buffer size must be a multiple of 64-bits')
}
for (let 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 () {
const length = this.length
if (length === 0) return ''
if (arguments.length === 0) return utf8Slice(this, 0, length)
return slowToString.apply(this, arguments)
}
Buffer.prototype.toLocaleString = Buffer.prototype.toString
Buffer.prototype.equals = function equals (b) {
if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
if (this === b) return true
return Buffer.compare(this, b) === 0
}
Buffer.prototype.inspect = function inspect () {
let str = ''
const max = exports.INSPECT_MAX_BYTES
str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
if (this.length > max) str += ' ... '
return '<Buffer ' + str + '>'
}
if (customInspectSymbol) {
Buffer.prototype[customInspectSymbol] = Buffer.prototype.inspect
}
Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
if (isInstance(target, Uint8Array)) {
target = Buffer.from(target, target.offset, target.byteLength)
}
if (!Buffer.isBuffer(target)) {
throw new TypeError(
'The "target" argument must be one of type Buffer or Uint8Array. ' +
'Received type ' + (typeof target)
)
}
if (start === undefined) {
start = 0
}
if (end === undefined) {
end = target ? target.length : 0
}
if (thisStart === undefined) {
thisStart = 0
}
if (thisEnd === undefined) {
thisEnd = this.length
}
if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
throw new RangeError('out of range index')
}
if (thisStart >= thisEnd && start >= end) {
return 0
}
if (thisStart >= thisEnd) {
return -1
}
if (start >= end) {
return 1
}
start >>>= 0
end >>>= 0
thisStart >>>= 0
thisEnd >>>= 0
if (this === target) return 0
let x = thisEnd - thisStart
let y = end - start
const len = Math.min(x, y)
const thisCopy = this.slice(thisStart, thisEnd)
const targetCopy = target.slice(start, end)
for (let i = 0; i < len; ++i) {
if (thisCopy[i] !== targetCopy[i]) {
x = thisCopy[i]
y = targetCopy[i]
break
}
}
if (x < y) return -1
if (y < x) return 1
return 0
}
// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
// Empty buffer means no match
if (buffer.length === 0) return -1
// Normalize byteOffset
if (typeof byteOffset === 'string') {
encoding = byteOffset
byteOffset = 0
} else if (byteOffset > 0x7fffffff) {
byteOffset = 0x7fffffff
} else if (byteOffset < -0x80000000) {
byteOffset = -0x80000000
}
byteOffset = +byteOffset // Coerce to Number.
if (numberIsNaN(byteOffset)) {
// byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
byteOffset = dir ? 0 : (buffer.length - 1)
}
// Normalize byteOffset: negative offsets start from the end of the buffer
if (byteOffset < 0) byteOffset = buffer.length + byteOffset
if (byteOffset >= buffer.length) {
if (dir) return -1
else byteOffset = buffer.length - 1
} else if (byteOffset < 0) {
if (dir) byteOffset = 0
else return -1
}
// Normalize val
if (typeof val === 'string') {
val = Buffer.from(val, encoding)
}
// Finally, search either indexOf (if dir is true) or lastIndexOf
if (Buffer.isBuffer(val)) {
// Special case: looking for empty string/buffer always fails
if (val.length === 0) {
return -1
}
return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
} else if (typeof val === 'number') {
val = val & 0xFF // Search for a byte value [0-255]
if (typeof Uint8Array.prototype.indexOf === 'function') {
if (dir) {
return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
} else {
return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
}
}
return arrayIndexOf(buffer, [val], byteOffset, encoding, dir)
}
throw new TypeError('val must be string, number or Buffer')
}
function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
let indexSize = 1
let arrLength = arr.length
let 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)
}
}
let i
if (dir) {
let 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--) {
let found = true
for (let 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
const remaining = buf.length - offset
if (!length) {
length = remaining
} else {
length = Number(length)
if (length > remaining) {
length = remaining
}
}
const strLen = string.length
if (length > strLen / 2) {
length = strLen / 2
}
let i
for (i = 0; i < length; ++i) {
const parsed = parseInt(string.substr(i * 2, 2), 16)
if (numberIsNaN(parsed)) return i
buf[offset + i] = parsed
}
return i
}
function utf8Write (buf, string, offset, length) {
return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}
function asciiWrite (buf, string, offset, length) {
return blitBuffer(asciiToBytes(string), buf, offset, length)
}
function base64Write (buf, string, offset, length) {
return blitBuffer(base64ToBytes(string), buf, offset, length)
}
function ucs2Write (buf, string, offset, length) {
return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}
Buffer.prototype.write = function write (string, offset, length, encoding) {
// Buffer#write(string)
if (offset === undefined) {
encoding = 'utf8'
length = this.length
offset = 0
// Buffer#write(string, encoding)
} else if (length === undefined && typeof offset === 'string') {
encoding = offset
length = this.length
offset = 0
// Buffer#write(string, offset[, length][, encoding])
} else if (isFinite(offset)) {
offset = offset >>> 0
if (isFinite(length)) {
length = length >>> 0
if (encoding === undefined) encoding = 'utf8'
} else {
encoding = length
length = undefined
}
} else {
throw new Error(
'Buffer.write(string, encoding, offset[, length]) is no longer supported'
)
}
const 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'
let 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':
case 'latin1':
case 'binary':
return asciiWrite(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)
const res = []
let i = start
while (i < end) {
const firstByte = buf[i]
let codePoint = null
let bytesPerSequence = (firstByte > 0xEF)
? 4
: (firstByte > 0xDF)
? 3
: (firstByte > 0xBF)
? 2
: 1
if (i + bytesPerSequence <= end) {
let 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
const MAX_ARGUMENTS_LENGTH = 0x1000
function decodeCodePointsArray (codePoints) {
const 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".
let res = ''
let i = 0
while (i < len) {
res += String.fromCharCode.apply(
String,
codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
)
}
return res
}
function asciiSlice (buf, start, end) {
let ret = ''
end = Math.min(buf.length, end)
for (let i = start; i < end; ++i) {
ret += String.fromCharCode(buf[i] & 0x7F)
}
return ret
}
function latin1Slice (buf, start, end) {
let ret = ''
end = Math.min(buf.length, end)
for (let i = start; i < end; ++i) {
ret += String.fromCharCode(buf[i])
}
return ret
}
function hexSlice (buf, start, end) {
const len = buf.length
if (!start || start < 0) start = 0
if (!end || end < 0 || end > len) end = len
let out = ''
for (let i = start; i < end; ++i) {
out += hexSliceLookupTable[buf[i]]
}
return out
}
function utf16leSlice (buf, start, end) {
const bytes = buf.slice(start, end)
let res = ''
// If bytes.length is odd, the last 8 bits must be ignored (same as node.js)
for (let i = 0; i < bytes.length - 1; i += 2) {
res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
}
return res
}
Buffer.prototype.slice = function slice (start, end) {
const 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
const newBuf = this.subarray(start, end)
// Return an augmented `Uint8Array` instance
Object.setPrototypeOf(newBuf, Buffer.prototype)
return newBuf
}
/*
* Need to make sure that buffer isn't trying to write out of bounds.
*/
function checkOffset (offset, ext, length) {
if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}
Buffer.prototype.readUintLE =
Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
let val = this[offset]
let mul = 1
let i = 0
while (++i < byteLength && (mul *= 0x100)) {
val += this[offset + i] * mul
}
return val
}
Buffer.prototype.readUintBE =
Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) {
checkOffset(offset, byteLength, this.length)
}
let val = this[offset + --byteLength]
let mul = 1
while (byteLength > 0 && (mul *= 0x100)) {
val += this[offset + --byteLength] * mul
}
return val
}
Buffer.prototype.readUint8 =
Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 1, this.length)
return this[offset]
}
Buffer.prototype.readUint16LE =
Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 2, this.length)
return this[offset] | (this[offset + 1] << 8)
}
Buffer.prototype.readUint16BE =
Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 2, this.length)
return (this[offset] << 8) | this[offset + 1]
}
Buffer.prototype.readUint32LE =
Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return ((this[offset]) |
(this[offset + 1] << 8) |
(this[offset + 2] << 16)) +
(this[offset + 3] * 0x1000000)
}
Buffer.prototype.readUint32BE =
Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset] * 0x1000000) +
((this[offset + 1] << 16) |
(this[offset + 2] << 8) |
this[offset + 3])
}
Buffer.prototype.readBigUInt64LE = defineBigIntMethod(function readBigUInt64LE (offset) {
offset = offset >>> 0
validateNumber(offset, 'offset')
const first = this[offset]
const last = this[offset + 7]
if (first === undefined || last === undefined) {
boundsError(offset, this.length - 8)
}
const lo = first +
this[++offset] * 2 ** 8 +
this[++offset] * 2 ** 16 +
this[++offset] * 2 ** 24
const hi = this[++offset] +
this[++offset] * 2 ** 8 +
this[++offset] * 2 ** 16 +
last * 2 ** 24
return BigInt(lo) + (BigInt(hi) << BigInt(32))
})
Buffer.prototype.readBigUInt64BE = defineBigIntMethod(function readBigUInt64BE (offset) {
offset = offset >>> 0
validateNumber(offset, 'offset')
const first = this[offset]
const last = this[offset + 7]
if (first === undefined || last === undefined) {
boundsError(offset, this.length - 8)
}
const hi = first * 2 ** 24 +
this[++offset] * 2 ** 16 +
this[++offset] * 2 ** 8 +
this[++offset]
const lo = this[++offset] * 2 ** 24 +
this[++offset] * 2 ** 16 +
this[++offset] * 2 ** 8 +
last
return (BigInt(hi) << BigInt(32)) + BigInt(lo)
})
Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
let val = this[offset]
let mul = 1
let 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)
let i = byteLength
let mul = 1
let val = this[offset + --i]
while (i > 0 && (mul *= 0x100)) {
val += this[offset + --i] * mul
}
mul *= 0x80
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
return val
}
Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 1, this.length)
if (!(this[offset] & 0x80)) return (this[offset])
return ((0xff - this[offset] + 1) * -1)
}
Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 2, this.length)
const val = this[offset] | (this[offset + 1] << 8)
return (val & 0x8000) ? val | 0xFFFF0000 : val
}
Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 2, this.length)
const val = this[offset + 1] | (this[offset] << 8)
return (val & 0x8000) ? val | 0xFFFF0000 : val
}
Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset]) |
(this[offset + 1] << 8) |
(this[offset + 2] << 16) |
(this[offset + 3] << 24)
}
Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset] << 24) |
(this[offset + 1] << 16) |
(this[offset + 2] << 8) |
(this[offset + 3])
}
Buffer.prototype.readBigInt64LE = defineBigIntMethod(function readBigInt64LE (offset) {
offset = offset >>> 0
validateNumber(offset, 'offset')
const first = this[offset]
const last = this[offset + 7]
if (first === undefined || last === undefined) {
boundsError(offset, this.length - 8)
}
const val = this[offset + 4] +
this[offset + 5] * 2 ** 8 +
this[offset + 6] * 2 ** 16 +
(last << 24) // Overflow
return (BigInt(val) << BigInt(32)) +
BigInt(first +
this[++offset] * 2 ** 8 +
this[++offset] * 2 ** 16 +
this[++offset] * 2 ** 24)
})
Buffer.prototype.readBigInt64BE = defineBigIntMethod(function readBigInt64BE (offset) {
offset = offset >>> 0
validateNumber(offset, 'offset')
const first = this[offset]
const last = this[offset + 7]
if (first === undefined || last === undefined) {
boundsError(offset, this.length - 8)
}
const val = (first << 24) + // Overflow
this[++offset] * 2 ** 16 +
this[++offset] * 2 ** 8 +
this[++offset]
return (BigInt(val) << BigInt(32)) +
BigInt(this[++offset] * 2 ** 24 +
this[++offset] * 2 ** 16 +
this[++offset] * 2 ** 8 +
last)
})
Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, true, 23, 4)
}
Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, false, 23, 4)
}
Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 8, this.length)
return ieee754.read(this, offset, true, 52, 8)
}
Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 8, this.length)
return ieee754.read(this, offset, false, 52, 8)
}
function checkInt (buf, value, offset, ext, max, min) {
if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
if (offset + ext > buf.length) throw new RangeError('Index out of range')
}
Buffer.prototype.writeUintLE =
Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
value = +value
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) {
const maxBytes = Math.pow(2, 8 * byteLength) - 1
checkInt(this, value, offset, byteLength, maxBytes, 0)
}
let mul = 1
let i = 0
this[offset] = value & 0xFF
while (++i < byteLength && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeUintBE =
Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
value = +value
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) {
const maxBytes = Math.pow(2, 8 * byteLength) - 1
checkInt(this, value, offset, byteLength, maxBytes, 0)
}
let i = byteLength - 1
let mul = 1
this[offset + i] = value & 0xFF
while (--i >= 0 && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeUint8 =
Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
this[offset] = (value & 0xff)
return offset + 1
}
Buffer.prototype.writeUint16LE =
Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
return offset + 2
}
Buffer.prototype.writeUint16BE =
Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
this[offset] = (value >>> 8)
this[offset + 1] = (value & 0xff)
return offset + 2
}
Buffer.prototype.writeUint32LE =
Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
this[offset + 3] = (value >>> 24)
this[offset + 2] = (value >>> 16)
this[offset + 1] = (value >>> 8)
this[offset] = (value & 0xff)
return offset + 4
}
Buffer.prototype.writeUint32BE =
Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
this[offset + 3] = (value & 0xff)
return offset + 4
}
function wrtBigUInt64LE (buf, value, offset, min, max) {
checkIntBI(value, min, max, buf, offset, 7)
let lo = Number(value & BigInt(0xffffffff))
buf[offset++] = lo
lo = lo >> 8
buf[offset++] = lo
lo = lo >> 8
buf[offset++] = lo
lo = lo >> 8
buf[offset++] = lo
let hi = Number(value >> BigInt(32) & BigInt(0xffffffff))
buf[offset++] = hi
hi = hi >> 8
buf[offset++] = hi
hi = hi >> 8
buf[offset++] = hi
hi = hi >> 8
buf[offset++] = hi
return offset
}
function wrtBigUInt64BE (buf, value, offset, min, max) {
checkIntBI(value, min, max, buf, offset, 7)
let lo = Number(value & BigInt(0xffffffff))
buf[offset + 7] = lo
lo = lo >> 8
buf[offset + 6] = lo
lo = lo >> 8
buf[offset + 5] = lo
lo = lo >> 8
buf[offset + 4] = lo
let hi = Number(value >> BigInt(32) & BigInt(0xffffffff))
buf[offset + 3] = hi
hi = hi >> 8
buf[offset + 2] = hi
hi = hi >> 8
buf[offset + 1] = hi
hi = hi >> 8
buf[offset] = hi
return offset + 8
}
Buffer.prototype.writeBigUInt64LE = defineBigIntMethod(function writeBigUInt64LE (value, offset = 0) {
return wrtBigUInt64LE(this, value, offset, BigInt(0), BigInt('0xffffffffffffffff'))
})
Buffer.prototype.writeBigUInt64BE = defineBigIntMethod(function writeBigUInt64BE (value, offset = 0) {
return wrtBigUInt64BE(this, value, offset, BigInt(0), BigInt('0xffffffffffffffff'))
})
Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) {
const limit = Math.pow(2, (8 * byteLength) - 1)
checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
let i = 0
let mul = 1
let 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) {
const limit = Math.pow(2, (8 * byteLength) - 1)
checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
let i = byteLength - 1
let mul = 1
let sub = 0
this[offset + i] = value & 0xFF
while (--i >= 0 && (mul *= 0x100)) {
if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
sub = 1
}
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
if (value < 0) value = 0xff + value + 1
this[offset] = (value & 0xff)
return offset + 1
}
Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
return offset + 2
}
Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
this[offset] = (value >>> 8)
this[offset + 1] = (value & 0xff)
return offset + 2
}
Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
this[offset + 2] = (value >>> 16)
this[offset + 3] = (value >>> 24)
return offset + 4
}
Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
if (value < 0) value = 0xffffffff + value + 1
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
this[offset + 3] = (value & 0xff)
return offset + 4
}
Buffer.prototype.writeBigInt64LE = defineBigIntMethod(function writeBigInt64LE (value, offset = 0) {
return wrtBigUInt64LE(this, value, offset, -BigInt('0x8000000000000000'), BigInt('0x7fffffffffffffff'))
})
Buffer.prototype.writeBigInt64BE = defineBigIntMethod(function writeBigInt64BE (value, offset = 0) {
return wrtBigUInt64BE(this, value, offset, -BigInt('0x8000000000000000'), BigInt('0x7fffffffffffffff'))
})
function checkIEEE754 (buf, value, offset, ext, max, min) {
if (offset + ext > buf.length) throw new RangeError('Index out of range')
if (offset < 0) throw new RangeError('Index out of range')
}
function writeFloat (buf, value, offset, littleEndian, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) {
checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
}
ieee754.write(buf, value, offset, littleEndian, 23, 4)
return offset + 4
}
Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
return writeFloat(this, value, offset, true, noAssert)
}
Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
return writeFloat(this, value, offset, false, noAssert)
}
function writeDouble (buf, value, offset, littleEndian, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) {
checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
}
ieee754.write(buf, value, offset, littleEndian, 52, 8)
return offset + 8
}
Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
return writeDouble(this, value, offset, true, noAssert)
}
Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
return writeDouble(this, value, offset, false, noAssert)
}
// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')
if (!start) start = 0
if (!end && end !== 0) end = this.length
if (targetStart >= target.length) targetStart = target.length
if (!targetStart) targetStart = 0
if (end > 0 && end < start) end = start
// Copy 0 bytes; we're done
if (end === start) return 0
if (target.length === 0 || this.length === 0) return 0
// Fatal error conditions
if (targetStart < 0) {
throw new RangeError('targetStart out of bounds')
}
if (start < 0 || start >= this.length) throw new RangeError('Index out of range')
if (end < 0) throw new RangeError('sourceEnd out of bounds')
// Are we oob?
if (end > this.length) end = this.length
if (target.length - targetStart < end - start) {
end = target.length - targetStart + start
}
const len = end - start
if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
// Use built-in when available, missing from IE11
this.copyWithin(targetStart, start, end)
} else {
Uint8Array.prototype.set.call(
target,
this.subarray(start, end),
targetStart
)
}
return len
}
// Usage:
// buffer.fill(number[, offset[, end]])
// buffer.fill(buffer[, offset[, end]])
// buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
// Handle string cases:
if (typeof val === 'string') {
if (typeof start === 'string') {
encoding = start
start = 0
end = this.length
} else if (typeof end === 'string') {
encoding = end
end = this.length
}
if (encoding !== undefined && typeof encoding !== 'string') {
throw new TypeError('encoding must be a string')
}
if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
throw new TypeError('Unknown encoding: ' + encoding)
}
if (val.length === 1) {
const code = val.charCodeAt(0)
if ((encoding === 'utf8' && code < 128) ||
encoding === 'latin1') {
// Fast path: If `val` fits into a single byte, use that numeric value.
val = code
}
}
} else if (typeof val === 'number') {
val = val & 255
} else if (typeof val === 'boolean') {
val = Number(val)
}
// 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
let i
if (typeof val === 'number') {
for (i = start; i < end; ++i) {
this[i] = val
}
} else {
const bytes = Buffer.isBuffer(val)
? val
: Buffer.from(val, encoding)
const len = bytes.length
if (len === 0) {
throw new TypeError('The value "' + val +
'" is invalid for argument "value"')
}
for (i = 0; i < end - start; ++i) {
this[i + start] = bytes[i % len]
}
}
return this
}
// CUSTOM ERRORS
// =============
// Simplified versions from Node, changed for Buffer-only usage
const errors = {}
function E (sym, getMessage, Base) {
errors[sym] = class NodeError extends Base {
constructor () {
super()
Object.defineProperty(this, 'message', {
value: getMessage.apply(this, arguments),
writable: true,
configurable: true
})
// Add the error code to the name to include it in the stack trace.
this.name = `${this.name} [${sym}]`
// Access the stack to generate the error message including the error code
// from the name.
this.stack // eslint-disable-line no-unused-expressions
// Reset the name to the actual name.
delete this.name
}
get code () {
return sym
}
set code (value) {
Object.defineProperty(this, 'code', {
configurable: true,
enumerable: true,
value,
writable: true
})
}
toString () {
return `${this.name} [${sym}]: ${this.message}`
}
}
}
E('ERR_BUFFER_OUT_OF_BOUNDS',
function (name) {
if (name) {
return `${name} is outside of buffer bounds`
}
return 'Attempt to access memory outside buffer bounds'
}, RangeError)
E('ERR_INVALID_ARG_TYPE',
function (name, actual) {
return `The "${name}" argument must be of type number. Received type ${typeof actual}`
}, TypeError)
E('ERR_OUT_OF_RANGE',
function (str, range, input) {
let msg = `The value of "${str}" is out of range.`
let received = input
if (Number.isInteger(input) && Math.abs(input) > 2 ** 32) {
received = addNumericalSeparator(String(input))
} else if (typeof input === 'bigint') {
received = String(input)
if (input > BigInt(2) ** BigInt(32) || input < -(BigInt(2) ** BigInt(32))) {
received = addNumericalSeparator(received)
}
received += 'n'
}
msg += ` It must be ${range}. Received ${received}`
return msg
}, RangeError)
function addNumericalSeparator (val) {
let res = ''
let i = val.length
const start = val[0] === '-' ? 1 : 0
for (; i >= start + 4; i -= 3) {
res = `_${val.slice(i - 3, i)}${res}`
}
return `${val.slice(0, i)}${res}`
}
// CHECK FUNCTIONS
// ===============
function checkBounds (buf, offset, byteLength) {
validateNumber(offset, 'offset')
if (buf[offset] === undefined || buf[offset + byteLength] === undefined) {
boundsError(offset, buf.length - (byteLength + 1))
}
}
function checkIntBI (value, min, max, buf, offset, byteLength) {
if (value > max || value < min) {
const n = typeof min === 'bigint' ? 'n' : ''
let range
if (byteLength > 3) {
if (min === 0 || min === BigInt(0)) {
range = `>= 0${n} and < 2${n} ** ${(byteLength + 1) * 8}${n}`
} else {
range = `>= -(2${n} ** ${(byteLength + 1) * 8 - 1}${n}) and < 2 ** ` +
`${(byteLength + 1) * 8 - 1}${n}`
}
} else {
range = `>= ${min}${n} and <= ${max}${n}`
}
throw new errors.ERR_OUT_OF_RANGE('value', range, value)
}
checkBounds(buf, offset, byteLength)
}
function validateNumber (value, name) {
if (typeof value !== 'number') {
throw new errors.ERR_INVALID_ARG_TYPE(name, 'number', value)
}
}
function boundsError (value, length, type) {
if (Math.floor(value) !== value) {
validateNumber(value, type)
throw new errors.ERR_OUT_OF_RANGE(type || 'offset', 'an integer', value)
}
if (length < 0) {
throw new errors.ERR_BUFFER_OUT_OF_BOUNDS()
}
throw new errors.ERR_OUT_OF_RANGE(type || 'offset',
`>= ${type ? 1 : 0} and <= ${length}`,
value)
}
// HELPER FUNCTIONS
// ================
const INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
function base64clean (str) {
// Node takes equal signs as end of the Base64 encoding
str = str.split('=')[0]
// Node strips out invalid characters like \n and \t from the string, base64-js does not
str = str.trim().replace(INVALID_BASE64_RE, '')
// Node converts strings with length < 2 to ''
if (str.length < 2) return ''
// Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
while (str.length % 4 !== 0) {
str = str + '='
}
return str
}
function utf8ToBytes (string, units) {
units = units || Infinity
let codePoint
const length = string.length
let leadSurrogate = null
const bytes = []
for (let 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) {
const byteArray = []
for (let 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) {
let c, hi, lo
const byteArray = []
for (let 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) {
let i
for (i = 0; i < length; ++i) {
if ((i + offset >= dst.length) || (i >= src.length)) break
dst[i + offset] = src[i]
}
return i
}
// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
// the `instanceof` check but they should be treated as of that type.
// See: https://github.com/feross/buffer/issues/166
function isInstance (obj, type) {
return obj instanceof type ||
(obj != null && obj.constructor != null && obj.constructor.name != null &&
obj.constructor.name === type.name)
}
function numberIsNaN (obj) {
// For IE11 support
return obj !== obj // eslint-disable-line no-self-compare
}
// Create lookup table for `toString('hex')`
// See: https://github.com/feross/buffer/issues/219
const hexSliceLookupTable = (function () {
const alphabet = '0123456789abcdef'
const table = new Array(256)
for (let i = 0; i < 16; ++i) {
const i16 = i * 16
for (let j = 0; j < 16; ++j) {
table[i16 + j] = alphabet[i] + alphabet[j]
}
}
return table
})()
// Return not function with Error if BigInt not supported
function defineBigIntMethod (fn) {
return typeof BigInt === 'undefined' ? BufferBigIntNotDefined : fn
}
function BufferBigIntNotDefined () {
throw new Error('BigInt not supported')
}
}
BufferArray.init();
/* https://github.com/feross/buffer */
/* Buffer Polyfill for Browsers */
function BufferInit() {
! function(t) {
if ("object" == typeof exports && "undefined" != typeof module) module.exports = t();
else if ("function" == typeof define && define.amd) define([], t);
else {
("undefined" != typeof window ? window : "undefined" != typeof global ? global : "undefined" != typeof self ? self : this).buffer = t()
}
}(function() {
return function() {
return function t(r, e, n) {
function i(f, u) {
if (!e[f]) {
if (!r[f]) {
var s = "function" == typeof require && require;
if (!u && s) return s(f, !0);
if (o) return o(f, !0);
var h = new Error("Cannot find module '" + f + "'");
throw h.code = "MODULE_NOT_FOUND", h
}
var a = e[f] = {
exports: {}
};
r[f][0].call(a.exports, function(t) {
return i(r[f][1][t] || t)
}, a, a.exports, t, r, e, n)
}
return e[f].exports
}
for (var o = "function" == typeof require && require, f = 0; f < n.length; f++) i(n[f]);
return i
}
}()({
1: [function(t, r, e) {
(function(r) {
"use strict";
var n = t("base64-js"),
i = t("ieee754"),
o = "function" == typeof Symbol && "function" == typeof Symbol.for ? Symbol.for("nodejs.util.inspect.custom") : null;
e.Buffer = r, e.SlowBuffer = function(t) {
+t != t && (t = 0);
return r.alloc(+t)
}, e.INSPECT_MAX_BYTES = 50;
var f = 2147483647;
function u(t) {
if (t > f) throw new RangeError('The value "' + t + '" is invalid for option "size"');
var e = new Uint8Array(t);
return Object.setPrototypeOf(e, r.prototype), e
}
function r(t, r, e) {
if ("number" == typeof t) {
if ("string" == typeof r) throw new TypeError('The "string" argument must be of type string. Received type number');
return a(t)
}
return s(t, r, e)
}
function s(t, e, n) {
if ("string" == typeof t) return function(t, e) {
"string" == typeof e && "" !== e || (e = "utf8");
if (!r.isEncoding(e)) throw new TypeError("Unknown encoding: " + e);
var n = 0 | l(t, e),
i = u(n),
o = i.write(t, e);
o !== n && (i = i.slice(0, o));
return i
}(t, e);
if (ArrayBuffer.isView(t)) return p(t);
if (null == t) throw new TypeError("The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type " + typeof t);
if (z(t, ArrayBuffer) || t && z(t.buffer, ArrayBuffer)) return function(t, e, n) {
if (e < 0 || t.byteLength < e) throw new RangeError('"offset" is outside of buffer bounds');
if (t.byteLength < e + (n || 0)) throw new RangeError('"length" is outside of buffer bounds');
var i;
i = void 0 === e && void 0 === n ? new Uint8Array(t) : void 0 === n ? new Uint8Array(t, e) : new Uint8Array(t, e, n);
return Object.setPrototypeOf(i, r.prototype), i
}(t, e, n);
if ("number" == typeof t) throw new TypeError('The "value" argument must not be of type number. Received type number');
var i = t.valueOf && t.valueOf();
if (null != i && i !== t) return r.from(i, e, n);
var o = function(t) {
if (r.isBuffer(t)) {
var e = 0 | c(t.length),
n = u(e);
return 0 === n.length ? n : (t.copy(n, 0, 0, e), n)
}
if (void 0 !== t.length) return "number" != typeof t.length || D(t.length) ? u(0) : p(t);
if ("Buffer" === t.type && Array.isArray(t.data)) return p(t.data)
}(t);
if (o) return o;
if ("undefined" != typeof Symbol && null != Symbol.toPrimitive && "function" == typeof t[Symbol.toPrimitive]) return r.from(t[Symbol.toPrimitive]("string"), e, n);
throw new TypeError("The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type " + typeof t)
}
function h(t) {
if ("number" != typeof t) throw new TypeError('"size" argument must be of type number');
if (t < 0) throw new RangeError('The value "' + t + '" is invalid for option "size"')
}
function a(t) {
return h(t), u(t < 0 ? 0 : 0 | c(t))
}
function p(t) {
for (var r = t.length < 0 ? 0 : 0 | c(t.length), e = u(r), n = 0; n < r; n += 1) e[n] = 255 & t[n];
return e
}
function c(t) {
if (t >= f) throw new RangeError("Attempt to allocate Buffer larger than maximum size: 0x" + f.toString(16) + " bytes");
return 0 | t
}
function l(t, e) {
if (r.isBuffer(t)) return t.length;
if (ArrayBuffer.isView(t) || z(t, ArrayBuffer)) return t.byteLength;
if ("string" != typeof t) throw new TypeError('The "string" argument must be one of type string, Buffer, or ArrayBuffer. Received type ' + typeof t);
var n = t.length,
i = arguments.length > 2 && !0 === arguments[2];
if (!i && 0 === n) return 0;
for (var o = !1;;) switch (e) {
case "ascii":
case "latin1":
case "binary":
return n;
case "utf8":
case "utf-8":
return P(t).length;
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return 2 * n;
case "hex":
return n >>> 1;
case "base64":
return j(t).length;
default:
if (o) return i ? -1 : P(t).length;
e = ("" + e).toLowerCase(), o = !0
}
}
function y(t, r, e) {
var n = t[r];
t[r] = t[e], t[e] = n
}
function g(t, e, n, i, o) {
if (0 === t.length) return -1;
if ("string" == typeof n ? (i = n, n = 0) : n > 2147483647 ? n = 2147483647 : n < -2147483648 && (n = -2147483648), D(n = +n) && (n = o ? 0 : t.length - 1), n < 0 && (n = t.length + n), n >= t.length) {
if (o) return -1;
n = t.length - 1
} else if (n < 0) {
if (!o) return -1;
n = 0
}
if ("string" == typeof e && (e = r.from(e, i)), r.isBuffer(e)) return 0 === e.length ? -1 : w(t, e, n, i, o);
if ("number" == typeof e) return e &= 255, "function" == typeof Uint8Array.prototype.indexOf ? o ? Uint8Array.prototype.indexOf.call(t, e, n) : Uint8Array.prototype.lastIndexOf.call(t, e, n) : w(t, [e], n, i, o);
throw new TypeError("val must be string, number or Buffer")
}
function w(t, r, e, n, i) {
var o, f = 1,
u = t.length,
s = r.length;
if (void 0 !== n && ("ucs2" === (n = String(n).toLowerCase()) || "ucs-2" === n || "utf16le" === n || "utf-16le" === n)) {
if (t.length < 2 || r.length < 2) return -1;
f = 2, u /= 2, s /= 2, e /= 2
}
function h(t, r) {
return 1 === f ? t[r] : t.readUInt16BE(r * f)
}
if (i) {
var a = -1;
for (o = e; o < u; o++)
if (h(t, o) === h(r, -1 === a ? 0 : o - a)) {
if (-1 === a && (a = o), o - a + 1 === s) return a * f
} else -1 !== a && (o -= o - a), a = -1
} else
for (e + s > u && (e = u - s), o = e; o >= 0; o--) {
for (var p = !0, c = 0; c < s; c++)
if (h(t, o + c) !== h(r, c)) {
p = !1;
break
}
if (p) return o
}
return -1
}
function d(t, r, e, n) {
e = Number(e) || 0;
var i = t.length - e;
n ? (n = Number(n)) > i && (n = i) : n = i;
var o = r.length;
n > o / 2 && (n = o / 2);
for (var f = 0; f < n; ++f) {
var u = parseInt(r.substr(2 * f, 2), 16);
if (D(u)) return f;
t[e + f] = u
}
return f
}
function v(t, r, e, n) {
return N(P(r, t.length - e), t, e, n)
}
function b(t, r, e, n) {
return N(function(t) {
for (var r = [], e = 0; e < t.length; ++e) r.push(255 & t.charCodeAt(e));
return r
}(r), t, e, n)
}
function m(t, r, e, n) {
return b(t, r, e, n)
}
function E(t, r, e, n) {
return N(j(r), t, e, n)
}
function B(t, r, e, n) {
return N(function(t, r) {
for (var e, n, i, o = [], f = 0; f < t.length && !((r -= 2) < 0); ++f) e = t.charCodeAt(f), n = e >> 8, i = e % 256, o.push(i), o.push(n);
return o
}(r, t.length - e), t, e, n)
}
function A(t, r, e) {
return 0 === r && e === t.length ? n.fromByteArray(t) : n.fromByteArray(t.slice(r, e))
}
function U(t, r, e) {
e = Math.min(t.length, e);
for (var n = [], i = r; i < e;) {
var o, f, u, s, h = t[i],
a = null,
p = h > 239 ? 4 : h > 223 ? 3 : h > 191 ? 2 : 1;
if (i + p <= e) switch (p) {
case 1:
h < 128 && (a = h);
break;
case 2:
128 == (192 & (o = t[i + 1])) && (s = (31 & h) << 6 | 63 & o) > 127 && (a = s);
break;
case 3:
o = t[i + 1], f = t[i + 2], 128 == (192 & o) && 128 == (192 & f) && (s = (15 & h) << 12 | (63 & o) << 6 | 63 & f) > 2047 && (s < 55296 || s > 57343) && (a = s);
break;
case 4:
o = t[i + 1], f = t[i + 2], u = t[i + 3], 128 == (192 & o) && 128 == (192 & f) && 128 == (192 & u) && (s = (15 & h) << 18 | (63 & o) << 12 | (63 & f) << 6 | 63 & u) > 65535 && s < 1114112 && (a = s)
}
null === a ? (a = 65533, p = 1) : a > 65535 && (a -= 65536, n.push(a >>> 10 & 1023 | 55296), a = 56320 | 1023 & a), n.push(a), i += p
}
return function(t) {
var r = t.length;
if (r <= T) return String.fromCharCode.apply(String, t);
var e = "",
n = 0;
for (; n < r;) e += String.fromCharCode.apply(String, t.slice(n, n += T));
return e
}(n)
}
e.kMaxLength = f, r.TYPED_ARRAY_SUPPORT = function() {
try {
var t = new Uint8Array(1),
r = {
foo: function() {
return 42
}
};
return Object.setPrototypeOf(r, Uint8Array.prototype), Object.setPrototypeOf(t, r), 42 === t.foo()
} catch (t) {
return !1
}
}(), r.TYPED_ARRAY_SUPPORT || "undefined" == typeof console || "function" != typeof console.error || console.error("This browser lacks typed array (Uint8Array) support which is required by `buffer` v5.x. Use `buffer` v4.x if you require old browser support."), Object.defineProperty(r.prototype, "parent", {
enumerable: !0,
get: function() {
if (r.isBuffer(this)) return this.buffer
}
}), Object.defineProperty(r.prototype, "offset", {
enumerable: !0,
get: function() {
if (r.isBuffer(this)) return this.byteOffset
}
}), "undefined" != typeof Symbol && null != Symbol.species && r[Symbol.species] === r && Object.defineProperty(r, Symbol.species, {
value: null,
configurable: !0,
enumerable: !1,
writable: !1
}), r.poolSize = 8192, r.from = function(t, r, e) {
return s(t, r, e)
}, Object.setPrototypeOf(r.prototype, Uint8Array.prototype), Object.setPrototypeOf(r, Uint8Array), r.alloc = function(t, r, e) {
return function(t, r, e) {
return h(t), t <= 0 ? u(t) : void 0 !== r ? "string" == typeof e ? u(t).fill(r, e) : u(t).fill(r) : u(t)
}(t, r, e)
}, r.allocUnsafe = function(t) {
return a(t)
}, r.allocUnsafeSlow = function(t) {
return a(t)
}, r.isBuffer = function(t) {
return null != t && !0 === t._isBuffer && t !== r.prototype
}, r.compare = function(t, e) {
if (z(t, Uint8Array) && (t = r.from(t, t.offset, t.byteLength)), z(e, Uint8Array) && (e = r.from(e, e.offset, e.byteLength)), !r.isBuffer(t) || !r.isBuffer(e)) throw new TypeError('The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array');
if (t === e) return 0;
for (var n = t.length, i = e.length, o = 0, f = Math.min(n, i); o < f; ++o)
if (t[o] !== e[o]) {
n = t[o], i = e[o];
break
}
return n < i ? -1 : i < n ? 1 : 0
}, r.isEncoding = function(t) {
switch (String(t).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 !0;
default:
return !1
}
}, r.concat = function(t, e) {
if (!Array.isArray(t)) throw new TypeError('"list" argument must be an Array of Buffers');
if (0 === t.length) return r.alloc(0);
var n;
if (void 0 === e)
for (e = 0, n = 0; n < t.length; ++n) e += t[n].length;
var i = r.allocUnsafe(e),
o = 0;
for (n = 0; n < t.length; ++n) {
var f = t[n];
if (z(f, Uint8Array) && (f = r.from(f)), !r.isBuffer(f)) throw new TypeError('"list" argument must be an Array of Buffers');
f.copy(i, o), o += f.length
}
return i
}, r.byteLength = l, r.prototype._isBuffer = !0, r.prototype.swap16 = function() {
var t = this.length;
if (t % 2 != 0) throw new RangeError("Buffer size must be a multiple of 16-bits");
for (var r = 0; r < t; r += 2) y(this, r, r + 1);
return this
}, r.prototype.swap32 = function() {
var t = this.length;
if (t % 4 != 0) throw new RangeError("Buffer size must be a multiple of 32-bits");
for (var r = 0; r < t; r += 4) y(this, r, r + 3), y(this, r + 1, r + 2);
return this
}, r.prototype.swap64 = function() {
var t = this.length;
if (t % 8 != 0) throw new RangeError("Buffer size must be a multiple of 64-bits");
for (var r = 0; r < t; r += 8) y(this, r, r + 7), y(this, r + 1, r + 6), y(this, r + 2, r + 5), y(this, r + 3, r + 4);
return this
}, r.prototype.toString = function() {
var t = this.length;
return 0 === t ? "" : 0 === arguments.length ? U(this, 0, t) : function(t, r, e) {
var n = !1;
if ((void 0 === r || r < 0) && (r = 0), r > this.length) return "";
if ((void 0 === e || e > this.length) && (e = this.length), e <= 0) return "";
if ((e >>>= 0) <= (r >>>= 0)) return "";
for (t || (t = "utf8");;) switch (t) {
case "hex":
return L(this, r, e);
case "utf8":
case "utf-8":
return U(this, r, e);
case "ascii":
return I(this, r, e);
case "latin1":
case "binary":
return S(this, r, e);
case "base64":
return A(this, r, e);
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return R(this, r, e);
default:
if (n) throw new TypeError("Unknown encoding: " + t);
t = (t + "").toLowerCase(), n = !0
}
}.apply(this, arguments)
}, r.prototype.toLocaleString = r.prototype.toString, r.prototype.equals = function(t) {
if (!r.isBuffer(t)) throw new TypeError("Argument must be a Buffer");
return this === t || 0 === r.compare(this, t)
}, r.prototype.inspect = function() {
var t = "",
r = e.INSPECT_MAX_BYTES;
return t = this.toString("hex", 0, r).replace(/(.{2})/g, "$1 ").trim(), this.length > r && (t += " ... "), "<Buffer " + t + ">"
}, o && (r.prototype[o] = r.prototype.inspect), r.prototype.compare = function(t, e, n, i, o) {
if (z(t, Uint8Array) && (t = r.from(t, t.offset, t.byteLength)), !r.isBuffer(t)) throw new TypeError('The "target" argument must be one of type Buffer or Uint8Array. Received type ' + typeof t);
if (void 0 === e && (e = 0), void 0 === n && (n = t ? t.length : 0), void 0 === i && (i = 0), void 0 === o && (o = this.length), e < 0 || n > t.length || i < 0 || o > this.length) throw new RangeError("out of range index");
if (i >= o && e >= n) return 0;
if (i >= o) return -1;
if (e >= n) return 1;
if (this === t) return 0;
for (var f = (o >>>= 0) - (i >>>= 0), u = (n >>>= 0) - (e >>>= 0), s = Math.min(f, u), h = this.slice(i, o), a = t.slice(e, n), p = 0; p < s; ++p)
if (h[p] !== a[p]) {
f = h[p], u = a[p];
break
}
return f < u ? -1 : u < f ? 1 : 0
}, r.prototype.includes = function(t, r, e) {
return -1 !== this.indexOf(t, r, e)
}, r.prototype.indexOf = function(t, r, e) {
return g(this, t, r, e, !0)
}, r.prototype.lastIndexOf = function(t, r, e) {
return g(this, t, r, e, !1)
}, r.prototype.write = function(t, r, e, n) {
if (void 0 === r) n = "utf8", e = this.length, r = 0;
else if (void 0 === e && "string" == typeof r) n = r, e = this.length, r = 0;
else {
if (!isFinite(r)) throw new Error("Buffer.write(string, encoding, offset[, length]) is no longer supported");
r >>>= 0, isFinite(e) ? (e >>>= 0, void 0 === n && (n = "utf8")) : (n = e, e = void 0)
}
var i = this.length - r;
if ((void 0 === e || e > i) && (e = i), t.length > 0 && (e < 0 || r < 0) || r > this.length) throw new RangeError("Attempt to write outside buffer bounds");
n || (n = "utf8");
for (var o = !1;;) switch (n) {
case "hex":
return d(this, t, r, e);
case "utf8":
case "utf-8":
return v(this, t, r, e);
case "ascii":
return b(this, t, r, e);
case "latin1":
case "binary":
return m(this, t, r, e);
case "base64":
return E(this, t, r, e);
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return B(this, t, r, e);
default:
if (o) throw new TypeError("Unknown encoding: " + n);
n = ("" + n).toLowerCase(), o = !0
}
}, r.prototype.toJSON = function() {
return {
type: "Buffer",
data: Array.prototype.slice.call(this._arr || this, 0)
}
};
var T = 4096;
function I(t, r, e) {
var n = "";
e = Math.min(t.length, e);
for (var i = r; i < e; ++i) n += String.fromCharCode(127 & t[i]);
return n
}
function S(t, r, e) {
var n = "";
e = Math.min(t.length, e);
for (var i = r; i < e; ++i) n += String.fromCharCode(t[i]);
return n
}
function L(t, r, e) {
var n = t.length;
(!r || r < 0) && (r = 0), (!e || e < 0 || e > n) && (e = n);
for (var i = "", o = r; o < e; ++o) i += F[t[o]];
return i
}
function R(t, r, e) {
for (var n = t.slice(r, e), i = "", o = 0; o < n.length; o += 2) i += String.fromCharCode(n[o] + 256 * n[o + 1]);
return i
}
function C(t, r, e) {
if (t % 1 != 0 || t < 0) throw new RangeError("offset is not uint");
if (t + r > e) throw new RangeError("Trying to access beyond buffer length")
}
function O(t, e, n, i, o, f) {
if (!r.isBuffer(t)) throw new TypeError('"buffer" argument must be a Buffer instance');
if (e > o || e < f) throw new RangeError('"value" argument is out of bounds');
if (n + i > t.length) throw new RangeError("Index out of range")
}
function _(t, r, e, n, i, o) {
if (e + n > t.length) throw new RangeError("Index out of range");
if (e < 0) throw new RangeError("Index out of range")
}
function x(t, r, e, n, o) {
return r = +r, e >>>= 0, o || _(t, 0, e, 4), i.write(t, r, e, n, 23, 4), e + 4
}
function M(t, r, e, n, o) {
return r = +r, e >>>= 0, o || _(t, 0, e, 8), i.write(t, r, e, n, 52, 8), e + 8
}
r.prototype.slice = function(t, e) {
var n = this.length;
(t = ~~t) < 0 ? (t += n) < 0 && (t = 0) : t > n && (t = n), (e = void 0 === e ? n : ~~e) < 0 ? (e += n) < 0 && (e = 0) : e > n && (e = n), e < t && (e = t);
var i = this.subarray(t, e);
return Object.setPrototypeOf(i, r.prototype), i
}, r.prototype.readUIntLE = function(t, r, e) {
t >>>= 0, r >>>= 0, e || C(t, r, this.length);
for (var n = this[t], i = 1, o = 0; ++o < r && (i *= 256);) n += this[t + o] * i;
return n
}, r.prototype.readUIntBE = function(t, r, e) {
t >>>= 0, r >>>= 0, e || C(t, r, this.length);
for (var n = this[t + --r], i = 1; r > 0 && (i *= 256);) n += this[t + --r] * i;
return n
}, r.prototype.readUInt8 = function(t, r) {
return t >>>= 0, r || C(t, 1, this.length), this[t]
}, r.prototype.readUInt16LE = function(t, r) {
return t >>>= 0, r || C(t, 2, this.length), this[t] | this[t + 1] << 8
}, r.prototype.readUInt16BE = function(t, r) {
return t >>>= 0, r || C(t, 2, this.length), this[t] << 8 | this[t + 1]
}, r.prototype.readUInt32LE = function(t, r) {
return t >>>= 0, r || C(t, 4, this.length), (this[t] | this[t + 1] << 8 | this[t + 2] << 16) + 16777216 * this[t + 3]
}, r.prototype.readUInt32BE = function(t, r) {
return t >>>= 0, r || C(t, 4, this.length), 16777216 * this[t] + (this[t + 1] << 16 | this[t + 2] << 8 | this[t + 3])
}, r.prototype.readIntLE = function(t, r, e) {
t >>>= 0, r >>>= 0, e || C(t, r, this.length);
for (var n = this[t], i = 1, o = 0; ++o < r && (i *= 256);) n += this[t + o] * i;
return n >= (i *= 128) && (n -= Math.pow(2, 8 * r)), n
}, r.prototype.readIntBE = function(t, r, e) {
t >>>= 0, r >>>= 0, e || C(t, r, this.length);
for (var n = r, i = 1, o = this[t + --n]; n > 0 && (i *= 256);) o += this[t + --n] * i;
return o >= (i *= 128) && (o -= Math.pow(2, 8 * r)), o
}, r.prototype.readInt8 = function(t, r) {
return t >>>= 0, r || C(t, 1, this.length), 128 & this[t] ? -1 * (255 - this[t] + 1) : this[t]
}, r.prototype.readInt16LE = function(t, r) {
t >>>= 0, r || C(t, 2, this.length);
var e = this[t] | this[t + 1] << 8;
return 32768 & e ? 4294901760 | e : e
}, r.prototype.readInt16BE = function(t, r) {
t >>>= 0, r || C(t, 2, this.length);
var e = this[t + 1] | this[t] << 8;
return 32768 & e ? 4294901760 | e : e
}, r.prototype.readInt32LE = function(t, r) {
return t >>>= 0, r || C(t, 4, this.length), this[t] | this[t + 1] << 8 | this[t + 2] << 16 | this[t + 3] << 24
}, r.prototype.readInt32BE = function(t, r) {
return t >>>= 0, r || C(t, 4, this.length), this[t] << 24 | this[t + 1] << 16 | this[t + 2] << 8 | this[t + 3]
}, r.prototype.readFloatLE = function(t, r) {
return t >>>= 0, r || C(t, 4, this.length), i.read(this, t, !0, 23, 4)
}, r.prototype.readFloatBE = function(t, r) {
return t >>>= 0, r || C(t, 4, this.length), i.read(this, t, !1, 23, 4)
}, r.prototype.readDoubleLE = function(t, r) {
return t >>>= 0, r || C(t, 8, this.length), i.read(this, t, !0, 52, 8)
}, r.prototype.readDoubleBE = function(t, r) {
return t >>>= 0, r || C(t, 8, this.length), i.read(this, t, !1, 52, 8)
}, r.prototype.writeUIntLE = function(t, r, e, n) {
(t = +t, r >>>= 0, e >>>= 0, n) || O(this, t, r, e, Math.pow(2, 8 * e) - 1, 0);
var i = 1,
o = 0;
for (this[r] = 255 & t; ++o < e && (i *= 256);) this[r + o] = t / i & 255;
return r + e
}, r.prototype.writeUIntBE = function(t, r, e, n) {
(t = +t, r >>>= 0, e >>>= 0, n) || O(this, t, r, e, Math.pow(2, 8 * e) - 1, 0);
var i = e - 1,
o = 1;
for (this[r + i] = 255 & t; --i >= 0 && (o *= 256);) this[r + i] = t / o & 255;
return r + e
}, r.prototype.writeUInt8 = function(t, r, e) {
return t = +t, r >>>= 0, e || O(this, t, r, 1, 255, 0), this[r] = 255 & t, r + 1
}, r.prototype.writeUInt16LE = function(t, r, e) {
return t = +t, r >>>= 0, e || O(this, t, r, 2, 65535, 0), this[r] = 255 & t, this[r + 1] = t >>> 8, r + 2
}, r.prototype.writeUInt16BE = function(t, r, e) {
return t = +t, r >>>= 0, e || O(this, t, r, 2, 65535, 0), this[r] = t >>> 8, this[r + 1] = 255 & t, r + 2
}, r.prototype.writeUInt32LE = function(t, r, e) {
return t = +t, r >>>= 0, e || O(this, t, r, 4, 4294967295, 0), this[r + 3] = t >>> 24, this[r + 2] = t >>> 16, this[r + 1] = t >>> 8, this[r] = 255 & t, r + 4
}, r.prototype.writeUInt32BE = function(t, r, e) {
return t = +t, r >>>= 0, e || O(this, t, r, 4, 4294967295, 0), this[r] = t >>> 24, this[r + 1] = t >>> 16, this[r + 2] = t >>> 8, this[r + 3] = 255 & t, r + 4
}, r.prototype.writeIntLE = function(t, r, e, n) {
if (t = +t, r >>>= 0, !n) {
var i = Math.pow(2, 8 * e - 1);
O(this, t, r, e, i - 1, -i)
}
var o = 0,
f = 1,
u = 0;
for (this[r] = 255 & t; ++o < e && (f *= 256);) t < 0 && 0 === u && 0 !== this[r + o - 1] && (u = 1), this[r + o] = (t / f >> 0) - u & 255;
return r + e
}, r.prototype.writeIntBE = function(t, r, e, n) {
if (t = +t, r >>>= 0, !n) {
var i = Math.pow(2, 8 * e - 1);
O(this, t, r, e, i - 1, -i)
}
var o = e - 1,
f = 1,
u = 0;
for (this[r + o] = 255 & t; --o >= 0 && (f *= 256);) t < 0 && 0 === u && 0 !== this[r + o + 1] && (u = 1), this[r + o] = (t / f >> 0) - u & 255;
return r + e
}, r.prototype.writeInt8 = function(t, r, e) {
return t = +t, r >>>= 0, e || O(this, t, r, 1, 127, -128), t < 0 && (t = 255 + t + 1), this[r] = 255 & t, r + 1
}, r.prototype.writeInt16LE = function(t, r, e) {
return t = +t, r >>>= 0, e || O(this, t, r, 2, 32767, -32768), this[r] = 255 & t, this[r + 1] = t >>> 8, r + 2
}, r.prototype.writeInt16BE = function(t, r, e) {
return t = +t, r >>>= 0, e || O(this, t, r, 2, 32767, -32768), this[r] = t >>> 8, this[r + 1] = 255 & t, r + 2
}, r.prototype.writeInt32LE = function(t, r, e) {
return t = +t, r >>>= 0, e || O(this, t, r, 4, 2147483647, -2147483648), this[r] = 255 & t, this[r + 1] = t >>> 8, this[r + 2] = t >>> 16, this[r + 3] = t >>> 24, r + 4
}, r.prototype.writeInt32BE = function(t, r, e) {
return t = +t, r >>>= 0, e || O(this, t, r, 4, 2147483647, -2147483648), t < 0 && (t = 4294967295 + t + 1), this[r] = t >>> 24, this[r + 1] = t >>> 16, this[r + 2] = t >>> 8, this[r + 3] = 255 & t, r + 4
}, r.prototype.writeFloatLE = function(t, r, e) {
return x(this, t, r, !0, e)
}, r.prototype.writeFloatBE = function(t, r, e) {
return x(this, t, r, !1, e)
}, r.prototype.writeDoubleLE = function(t, r, e) {
return M(this, t, r, !0, e)
}, r.prototype.writeDoubleBE = function(t, r, e) {
return M(this, t, r, !1, e)
}, r.prototype.copy = function(t, e, n, i) {
if (!r.isBuffer(t)) throw new TypeError("argument should be a Buffer");
if (n || (n = 0), i || 0 === i || (i = this.length), e >= t.length && (e = t.length), e || (e = 0), i > 0 && i < n && (i = n), i === n) return 0;
if (0 === t.length || 0 === this.length) return 0;
if (e < 0) throw new RangeError("targetStart out of bounds");
if (n < 0 || n >= this.length) throw new RangeError("Index out of range");
if (i < 0) throw new RangeError("sourceEnd out of bounds");
i > this.length && (i = this.length), t.length - e < i - n && (i = t.length - e + n);
var o = i - n;
if (this === t && "function" == typeof Uint8Array.prototype.copyWithin) this.copyWithin(e, n, i);
else if (this === t && n < e && e < i)
for (var f = o - 1; f >= 0; --f) t[f + e] = this[f + n];
else Uint8Array.prototype.set.call(t, this.subarray(n, i), e);
return o
}, r.prototype.fill = function(t, e, n, i) {
if ("string" == typeof t) {
if ("string" == typeof e ? (i = e, e = 0, n = this.length) : "string" == typeof n && (i = n, n = this.length), void 0 !== i && "string" != typeof i) throw new TypeError("encoding must be a string");
if ("string" == typeof i && !r.isEncoding(i)) throw new TypeError("Unknown encoding: " + i);
if (1 === t.length) {
var o = t.charCodeAt(0);
("utf8" === i && o < 128 || "latin1" === i) && (t = o)
}
} else "number" == typeof t ? t &= 255 : "boolean" == typeof t && (t = Number(t));
if (e < 0 || this.length < e || this.length < n) throw new RangeError("Out of range index");
if (n <= e) return this;
var f;
if (e >>>= 0, n = void 0 === n ? this.length : n >>> 0, t || (t = 0), "number" == typeof t)
for (f = e; f < n; ++f) this[f] = t;
else {
var u = r.isBuffer(t) ? t : r.from(t, i),
s = u.length;
if (0 === s) throw new TypeError('The value "' + t + '" is invalid for argument "value"');
for (f = 0; f < n - e; ++f) this[f + e] = u[f % s]
}
return this
};
var k = /[^+\/0-9A-Za-z-_]/g;
function P(t, r) {
var e;
r = r || 1 / 0;
for (var n = t.length, i = null, o = [], f = 0; f < n; ++f) {
if ((e = t.charCodeAt(f)) > 55295 && e < 57344) {
if (!i) {
if (e > 56319) {
(r -= 3) > -1 && o.push(239, 191, 189);
continue
}
if (f + 1 === n) {
(r -= 3) > -1 && o.push(239, 191, 189);
continue
}
i = e;
continue
}
if (e < 56320) {
(r -= 3) > -1 && o.push(239, 191, 189), i = e;
continue
}
e = 65536 + (i - 55296 << 10 | e - 56320)
} else i && (r -= 3) > -1 && o.push(239, 191, 189);
if (i = null, e < 128) {
if ((r -= 1) < 0) break;
o.push(e)
} else if (e < 2048) {
if ((r -= 2) < 0) break;
o.push(e >> 6 | 192, 63 & e | 128)
} else if (e < 65536) {
if ((r -= 3) < 0) break;
o.push(e >> 12 | 224, e >> 6 & 63 | 128, 63 & e | 128)
} else {
if (!(e < 1114112)) throw new Error("Invalid code point");
if ((r -= 4) < 0) break;
o.push(e >> 18 | 240, e >> 12 & 63 | 128, e >> 6 & 63 | 128, 63 & e | 128)
}
}
return o
}
function j(t) {
return n.toByteArray(function(t) {
if ((t = (t = t.split("=")[0]).trim().replace(k, "")).length < 2) return "";
for (; t.length % 4 != 0;) t += "=";
return t
}(t))
}
function N(t, r, e, n) {
for (var i = 0; i < n && !(i + e >= r.length || i >= t.length); ++i) r[i + e] = t[i];
return i
}
function z(t, r) {
return t instanceof r || null != t && null != t.constructor && null != t.constructor.name && t.constructor.name === r.name
}
function D(t) {
return t != t
}
var F = function() {
for (var t = new Array(256), r = 0; r < 16; ++r)
for (var e = 16 * r, n = 0; n < 16; ++n) t[e + n] = "0123456789abcdef" [r] + "0123456789abcdef" [n];
return t
}()
}).call(this, t("buffer").Buffer)
}, {
"base64-js": 2,
buffer: 5,
ieee754: 3
}],
2: [function(t, r, e) {
"use strict";
e.byteLength = function(t) {
var r = h(t),
e = r[0],
n = r[1];
return 3 * (e + n) / 4 - n
}, e.toByteArray = function(t) {
var r, e, n = h(t),
f = n[0],
u = n[1],
s = new o(function(t, r, e) {
return 3 * (r + e) / 4 - e
}(0, f, u)),
a = 0,
p = u > 0 ? f - 4 : f;
for (e = 0; e < p; e += 4) r = i[t.charCodeAt(e)] << 18 | i[t.charCodeAt(e + 1)] << 12 | i[t.charCodeAt(e + 2)] << 6 | i[t.charCodeAt(e + 3)], s[a++] = r >> 16 & 255, s[a++] = r >> 8 & 255, s[a++] = 255 & r;
2 === u && (r = i[t.charCodeAt(e)] << 2 | i[t.charCodeAt(e + 1)] >> 4, s[a++] = 255 & r);
1 === u && (r = i[t.charCodeAt(e)] << 10 | i[t.charCodeAt(e + 1)] << 4 | i[t.charCodeAt(e + 2)] >> 2, s[a++] = r >> 8 & 255, s[a++] = 255 & r);
return s
}, e.fromByteArray = function(t) {
for (var r, e = t.length, i = e % 3, o = [], f = 0, u = e - i; f < u; f += 16383) o.push(a(t, f, f + 16383 > u ? u : f + 16383));
1 === i ? (r = t[e - 1], o.push(n[r >> 2] + n[r << 4 & 63] + "==")) : 2 === i && (r = (t[e - 2] << 8) + t[e - 1], o.push(n[r >> 10] + n[r >> 4 & 63] + n[r << 2 & 63] + "="));
return o.join("")
};
for (var n = [], i = [], o = "undefined" != typeof Uint8Array ? Uint8Array : Array, f = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/", u = 0, s = f.length; u < s; ++u) n[u] = f[u], i[f.charCodeAt(u)] = u;
function h(t) {
var r = t.length;
if (r % 4 > 0) throw new Error("Invalid string. Length must be a multiple of 4");
var e = t.indexOf("=");
return -1 === e && (e = r), [e, e === r ? 0 : 4 - e % 4]
}
function a(t, r, e) {
for (var i, o, f = [], u = r; u < e; u += 3) i = (t[u] << 16 & 16711680) + (t[u + 1] << 8 & 65280) + (255 & t[u + 2]), f.push(n[(o = i) >> 18 & 63] + n[o >> 12 & 63] + n[o >> 6 & 63] + n[63 & o]);
return f.join("")
}
i["-".charCodeAt(0)] = 62, i["_".charCodeAt(0)] = 63
}, {}],
3: [function(t, r, e) {
e.read = function(t, r, e, n, i) {
var o, f, u = 8 * i - n - 1,
s = (1 << u) - 1,
h = s >> 1,
a = -7,
p = e ? i - 1 : 0,
c = e ? -1 : 1,
l = t[r + p];
for (p += c, o = l & (1 << -a) - 1, l >>= -a, a += u; a > 0; o = 256 * o + t[r + p], p += c, a -= 8);
for (f = o & (1 << -a) - 1, o >>= -a, a += n; a > 0; f = 256 * f + t[r + p], p += c, a -= 8);
if (0 === o) o = 1 - h;
else {
if (o === s) return f ? NaN : 1 / 0 * (l ? -1 : 1);
f += Math.pow(2, n), o -= h
}
return (l ? -1 : 1) * f * Math.pow(2, o - n)
}, e.write = function(t, r, e, n, i, o) {
var f, u, s, h = 8 * o - i - 1,
a = (1 << h) - 1,
p = a >> 1,
c = 23 === i ? Math.pow(2, -24) - Math.pow(2, -77) : 0,
l = n ? 0 : o - 1,
y = n ? 1 : -1,
g = r < 0 || 0 === r && 1 / r < 0 ? 1 : 0;
for (r = Math.abs(r), isNaN(r) || r === 1 / 0 ? (u = isNaN(r) ? 1 : 0, f = a) : (f = Math.floor(Math.log(r) / Math.LN2), r * (s = Math.pow(2, -f)) < 1 && (f--, s *= 2), (r += f + p >= 1 ? c / s : c * Math.pow(2, 1 - p)) * s >= 2 && (f++, s /= 2), f + p >= a ? (u = 0, f = a) : f + p >= 1 ? (u = (r * s - 1) * Math.pow(2, i), f += p) : (u = r * Math.pow(2, p - 1) * Math.pow(2, i), f = 0)); i >= 8; t[e + l] = 255 & u, l += y, u /= 256, i -= 8);
for (f = f << i | u, h += i; h > 0; t[e + l] = 255 & f, l += y, f /= 256, h -= 8);
t[e + l - y] |= 128 * g
}
}, {}],
4: [function(t, r, e) {
arguments[4][2][0].apply(e, arguments)
}, {
dup: 2
}],
5: [function(t, r, e) {
(function(r) {
"use strict";
var n = t("base64-js"),
i = t("ieee754");
e.Buffer = r, e.SlowBuffer = function(t) {
+t != t && (t = 0);
return r.alloc(+t)
}, e.INSPECT_MAX_BYTES = 50;
var o = 2147483647;
function f(t) {
if (t > o) throw new RangeError('The value "' + t + '" is invalid for option "size"');
var e = new Uint8Array(t);
return e.__proto__ = r.prototype, e
}
function r(t, r, e) {
if ("number" == typeof t) {
if ("string" == typeof r) throw new TypeError('The "string" argument must be of type string. Received type number');
return h(t)
}
return u(t, r, e)
}
function u(t, e, n) {
if ("string" == typeof t) return function(t, e) {
"string" == typeof e && "" !== e || (e = "utf8");
if (!r.isEncoding(e)) throw new TypeError("Unknown encoding: " + e);
var n = 0 | c(t, e),
i = f(n),
o = i.write(t, e);
o !== n && (i = i.slice(0, o));
return i
}(t, e);
if (ArrayBuffer.isView(t)) return a(t);
if (null == t) throw TypeError("The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type " + typeof t);
if (z(t, ArrayBuffer) || t && z(t.buffer, ArrayBuffer)) return function(t, e, n) {
if (e < 0 || t.byteLength < e) throw new RangeError('"offset" is outside of buffer bounds');
if (t.byteLength < e + (n || 0)) throw new RangeError('"length" is outside of buffer bounds');
var i;
i = void 0 === e && void 0 === n ? new Uint8Array(t) : void 0 === n ? new Uint8Array(t, e) : new Uint8Array(t, e, n);
return i.__proto__ = r.prototype, i
}(t, e, n);
if ("number" == typeof t) throw new TypeError('The "value" argument must not be of type number. Received type number');
var i = t.valueOf && t.valueOf();
if (null != i && i !== t) return r.from(i, e, n);
var o = function(t) {
if (r.isBuffer(t)) {
var e = 0 | p(t.length),
n = f(e);
return 0 === n.length ? n : (t.copy(n, 0, 0, e), n)
}
if (void 0 !== t.length) return "number" != typeof t.length || D(t.length) ? f(0) : a(t);
if ("Buffer" === t.type && Array.isArray(t.data)) return a(t.data)
}(t);
if (o) return o;
if ("undefined" != typeof Symbol && null != Symbol.toPrimitive && "function" == typeof t[Symbol.toPrimitive]) return r.from(t[Symbol.toPrimitive]("string"), e, n);
throw new TypeError("The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type " + typeof t)
}
function s(t) {
if ("number" != typeof t) throw new TypeError('"size" argument must be of type number');
if (t < 0) throw new RangeError('The value "' + t + '" is invalid for option "size"')
}
function h(t) {
return s(t), f(t < 0 ? 0 : 0 | p(t))
}
function a(t) {
for (var r = t.length < 0 ? 0 : 0 | p(t.length), e = f(r), n = 0; n < r; n += 1) e[n] = 255 & t[n];
return e
}
function p(t) {
if (t >= o) throw new RangeError("Attempt to allocate Buffer larger than maximum size: 0x" + o.toString(16) + " bytes");
return 0 | t
}
function c(t, e) {
if (r.isBuffer(t)) return t.length;
if (ArrayBuffer.isView(t) || z(t, ArrayBuffer)) return t.byteLength;
if ("string" != typeof t) throw new TypeError('The "string" argument must be one of type string, Buffer, or ArrayBuffer. Received type ' + typeof t);
var n = t.length,
i = arguments.length > 2 && !0 === arguments[2];
if (!i && 0 === n) return 0;
for (var o = !1;;) switch (e) {
case "ascii":
case "latin1":
case "binary":
return n;
case "utf8":
case "utf-8":
return P(t).length;
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return 2 * n;
case "hex":
return n >>> 1;
case "base64":
return j(t).length;
default:
if (o) return i ? -1 : P(t).length;
e = ("" + e).toLowerCase(), o = !0
}
}
function l(t, r, e) {
var n = t[r];
t[r] = t[e], t[e] = n
}
function y(t, e, n, i, o) {
if (0 === t.length) return -1;
if ("string" == typeof n ? (i = n, n = 0) : n > 2147483647 ? n = 2147483647 : n < -2147483648 && (n = -2147483648), D(n = +n) && (n = o ? 0 : t.length - 1), n < 0 && (n = t.length + n), n >= t.length) {
if (o) return -1;
n = t.length - 1
} else if (n < 0) {
if (!o) return -1;
n = 0
}
if ("string" == typeof e && (e = r.from(e, i)), r.isBuffer(e)) return 0 === e.length ? -1 : g(t, e, n, i, o);
if ("number" == typeof e) return e &= 255, "function" == typeof Uint8Array.prototype.indexOf ? o ? Uint8Array.prototype.indexOf.call(t, e, n) : Uint8Array.prototype.lastIndexOf.call(t, e, n) : g(t, [e], n, i, o);
throw new TypeError("val must be string, number or Buffer")
}
function g(t, r, e, n, i) {
var o, f = 1,
u = t.length,
s = r.length;
if (void 0 !== n && ("ucs2" === (n = String(n).toLowerCase()) || "ucs-2" === n || "utf16le" === n || "utf-16le" === n)) {
if (t.length < 2 || r.length < 2) return -1;
f = 2, u /= 2, s /= 2, e /= 2
}
function h(t, r) {
return 1 === f ? t[r] : t.readUInt16BE(r * f)
}
if (i) {
var a = -1;
for (o = e; o < u; o++)
if (h(t, o) === h(r, -1 === a ? 0 : o - a)) {
if (-1 === a && (a = o), o - a + 1 === s) return a * f
} else -1 !== a && (o -= o - a), a = -1
} else
for (e + s > u && (e = u - s), o = e; o >= 0; o--) {
for (var p = !0, c = 0; c < s; c++)
if (h(t, o + c) !== h(r, c)) {
p = !1;
break
}
if (p) return o
}
return -1
}
function w(t, r, e, n) {
e = Number(e) || 0;
var i = t.length - e;
n ? (n = Number(n)) > i && (n = i) : n = i;
var o = r.length;
n > o / 2 && (n = o / 2);
for (var f = 0; f < n; ++f) {
var u = parseInt(r.substr(2 * f, 2), 16);
if (D(u)) return f;
t[e + f] = u
}
return f
}
function d(t, r, e, n) {
return N(P(r, t.length - e), t, e, n)
}
function v(t, r, e, n) {
return N(function(t) {
for (var r = [], e = 0; e < t.length; ++e) r.push(255 & t.charCodeAt(e));
return r
}(r), t, e, n)
}
function b(t, r, e, n) {
return v(t, r, e, n)
}
function m(t, r, e, n) {
return N(j(r), t, e, n)
}
function E(t, r, e, n) {
return N(function(t, r) {
for (var e, n, i, o = [], f = 0; f < t.length && !((r -= 2) < 0); ++f) e = t.charCodeAt(f), n = e >> 8, i = e % 256, o.push(i), o.push(n);
return o
}(r, t.length - e), t, e, n)
}
function B(t, r, e) {
return 0 === r && e === t.length ? n.fromByteArray(t) : n.fromByteArray(t.slice(r, e))
}
function A(t, r, e) {
e = Math.min(t.length, e);
for (var n = [], i = r; i < e;) {
var o, f, u, s, h = t[i],
a = null,
p = h > 239 ? 4 : h > 223 ? 3 : h > 191 ? 2 : 1;
if (i + p <= e) switch (p) {
case 1:
h < 128 && (a = h);
break;
case 2:
128 == (192 & (o = t[i + 1])) && (s = (31 & h) << 6 | 63 & o) > 127 && (a = s);
break;
case 3:
o = t[i + 1], f = t[i + 2], 128 == (192 & o) && 128 == (192 & f) && (s = (15 & h) << 12 | (63 & o) << 6 | 63 & f) > 2047 && (s < 55296 || s > 57343) && (a = s);
break;
case 4:
o = t[i + 1], f = t[i + 2], u = t[i + 3], 128 == (192 & o) && 128 == (192 & f) && 128 == (192 & u) && (s = (15 & h) << 18 | (63 & o) << 12 | (63 & f) << 6 | 63 & u) > 65535 && s < 1114112 && (a = s)
}
null === a ? (a = 65533, p = 1) : a > 65535 && (a -= 65536, n.push(a >>> 10 & 1023 | 55296), a = 56320 | 1023 & a), n.push(a), i += p
}
return function(t) {
var r = t.length;
if (r <= U) return String.fromCharCode.apply(String, t);
var e = "",
n = 0;
for (; n < r;) e += String.fromCharCode.apply(String, t.slice(n, n += U));
return e
}(n)
}
e.kMaxLength = o, r.TYPED_ARRAY_SUPPORT = function() {
try {
var t = new Uint8Array(1);
return t.__proto__ = {
__proto__: Uint8Array.prototype,
foo: function() {
return 42
}
}, 42 === t.foo()
} catch (t) {
return !1
}
}(), r.TYPED_ARRAY_SUPPORT || "undefined" == typeof console || "function" != typeof console.error || console.error("This browser lacks typed array (Uint8Array) support which is required by `buffer` v5.x. Use `buffer` v4.x if you require old browser support."), Object.defineProperty(r.prototype, "parent", {
enumerable: !0,
get: function() {
if (r.isBuffer(this)) return this.buffer
}
}), Object.defineProperty(r.prototype, "offset", {
enumerable: !0,
get: function() {
if (r.isBuffer(this)) return this.byteOffset
}
}), "undefined" != typeof Symbol && null != Symbol.species && r[Symbol.species] === r && Object.defineProperty(r, Symbol.species, {
value: null,
configurable: !0,
enumerable: !1,
writable: !1
}), r.poolSize = 8192, r.from = function(t, r, e) {
return u(t, r, e)
}, r.prototype.__proto__ = Uint8Array.prototype, r.__proto__ = Uint8Array, r.alloc = function(t, r, e) {
return function(t, r, e) {
return s(t), t <= 0 ? f(t) : void 0 !== r ? "string" == typeof e ? f(t).fill(r, e) : f(t).fill(r) : f(t)
}(t, r, e)
}, r.allocUnsafe = function(t) {
return h(t)
}, r.allocUnsafeSlow = function(t) {
return h(t)
}, r.isBuffer = function(t) {
return null != t && !0 === t._isBuffer && t !== r.prototype
}, r.compare = function(t, e) {
if (z(t, Uint8Array) && (t = r.from(t, t.offset, t.byteLength)), z(e, Uint8Array) && (e = r.from(e, e.offset, e.byteLength)), !r.isBuffer(t) || !r.isBuffer(e)) throw new TypeError('The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array');
if (t === e) return 0;
for (var n = t.length, i = e.length, o = 0, f = Math.min(n, i); o < f; ++o)
if (t[o] !== e[o]) {
n = t[o], i = e[o];
break
}
return n < i ? -1 : i < n ? 1 : 0
}, r.isEncoding = function(t) {
switch (String(t).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 !0;
default:
return !1
}
}, r.concat = function(t, e) {
if (!Array.isArray(t)) throw new TypeError('"list" argument must be an Array of Buffers');
if (0 === t.length) return r.alloc(0);
var n;
if (void 0 === e)
for (e = 0, n = 0; n < t.length; ++n) e += t[n].length;
var i = r.allocUnsafe(e),
o = 0;
for (n = 0; n < t.length; ++n) {
var f = t[n];
if (z(f, Uint8Array) && (f = r.from(f)), !r.isBuffer(f)) throw new TypeError('"list" argument must be an Array of Buffers');
f.copy(i, o), o += f.length
}
return i
}, r.byteLength = c, r.prototype._isBuffer = !0, r.prototype.swap16 = function() {
var t = this.length;
if (t % 2 != 0) throw new RangeError("Buffer size must be a multiple of 16-bits");
for (var r = 0; r < t; r += 2) l(this, r, r + 1);
return this
}, r.prototype.swap32 = function() {
var t = this.length;
if (t % 4 != 0) throw new RangeError("Buffer size must be a multiple of 32-bits");
for (var r = 0; r < t; r += 4) l(this, r, r + 3), l(this, r + 1, r + 2);
return this
}, r.prototype.swap64 = function() {
var t = this.length;
if (t % 8 != 0) throw new RangeError("Buffer size must be a multiple of 64-bits");
for (var r = 0; r < t; r += 8) l(this, r, r + 7), l(this, r + 1, r + 6), l(this, r + 2, r + 5), l(this, r + 3, r + 4);
return this
}, r.prototype.toString = function() {
var t = this.length;
return 0 === t ? "" : 0 === arguments.length ? A(this, 0, t) : function(t, r, e) {
var n = !1;
if ((void 0 === r || r < 0) && (r = 0), r > this.length) return "";
if ((void 0 === e || e > this.length) && (e = this.length), e <= 0) return "";
if ((e >>>= 0) <= (r >>>= 0)) return "";
for (t || (t = "utf8");;) switch (t) {
case "hex":
return S(this, r, e);
case "utf8":
case "utf-8":
return A(this, r, e);
case "ascii":
return T(this, r, e);
case "latin1":
case "binary":
return I(this, r, e);
case "base64":
return B(this, r, e);
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return L(this, r, e);
default:
if (n) throw new TypeError("Unknown encoding: " + t);
t = (t + "").toLowerCase(), n = !0
}
}.apply(this, arguments)
}, r.prototype.toLocaleString = r.prototype.toString, r.prototype.equals = function(t) {
if (!r.isBuffer(t)) throw new TypeError("Argument must be a Buffer");
return this === t || 0 === r.compare(this, t)
}, r.prototype.inspect = function() {
var t = "",
r = e.INSPECT_MAX_BYTES;
return t = this.toString("hex", 0, r).replace(/(.{2})/g, "$1 ").trim(), this.length > r && (t += " ... "), "<Buffer " + t + ">"
}, r.prototype.compare = function(t, e, n, i, o) {
if (z(t, Uint8Array) && (t = r.from(t, t.offset, t.byteLength)), !r.isBuffer(t)) throw new TypeError('The "target" argument must be one of type Buffer or Uint8Array. Received type ' + typeof t);
if (void 0 === e && (e = 0), void 0 === n && (n = t ? t.length : 0), void 0 === i && (i = 0), void 0 === o && (o = this.length), e < 0 || n > t.length || i < 0 || o > this.length) throw new RangeError("out of range index");
if (i >= o && e >= n) return 0;
if (i >= o) return -1;
if (e >= n) return 1;
if (this === t) return 0;
for (var f = (o >>>= 0) - (i >>>= 0), u = (n >>>= 0) - (e >>>= 0), s = Math.min(f, u), h = this.slice(i, o), a = t.slice(e, n), p = 0; p < s; ++p)
if (h[p] !== a[p]) {
f = h[p], u = a[p];
break
}
return f < u ? -1 : u < f ? 1 : 0
}, r.prototype.includes = function(t, r, e) {
return -1 !== this.indexOf(t, r, e)
}, r.prototype.indexOf = function(t, r, e) {
return y(this, t, r, e, !0)
}, r.prototype.lastIndexOf = function(t, r, e) {
return y(this, t, r, e, !1)
}, r.prototype.write = function(t, r, e, n) {
if (void 0 === r) n = "utf8", e = this.length, r = 0;
else if (void 0 === e && "string" == typeof r) n = r, e = this.length, r = 0;
else {
if (!isFinite(r)) throw new Error("Buffer.write(string, encoding, offset[, length]) is no longer supported");
r >>>= 0, isFinite(e) ? (e >>>= 0, void 0 === n && (n = "utf8")) : (n = e, e = void 0)
}
var i = this.length - r;
if ((void 0 === e || e > i) && (e = i), t.length > 0 && (e < 0 || r < 0) || r > this.length) throw new RangeError("Attempt to write outside buffer bounds");
n || (n = "utf8");
for (var o = !1;;) switch (n) {
case "hex":
return w(this, t, r, e);
case "utf8":
case "utf-8":
return d(this, t, r, e);
case "ascii":
return v(this, t, r, e);
case "latin1":
case "binary":
return b(this, t, r, e);
case "base64":
return m(this, t, r, e);
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return E(this, t, r, e);
default:
if (o) throw new TypeError("Unknown encoding: " + n);
n = ("" + n).toLowerCase(), o = !0
}
}, r.prototype.toJSON = function() {
return {
type: "Buffer",
data: Array.prototype.slice.call(this._arr || this, 0)
}
};
var U = 4096;
function T(t, r, e) {
var n = "";
e = Math.min(t.length, e);
for (var i = r; i < e; ++i) n += String.fromCharCode(127 & t[i]);
return n
}
function I(t, r, e) {
var n = "";
e = Math.min(t.length, e);
for (var i = r; i < e; ++i) n += String.fromCharCode(t[i]);
return n
}
function S(t, r, e) {
var n = t.length;
(!r || r < 0) && (r = 0), (!e || e < 0 || e > n) && (e = n);
for (var i = "", o = r; o < e; ++o) i += k(t[o]);
return i
}
function L(t, r, e) {
for (var n = t.slice(r, e), i = "", o = 0; o < n.length; o += 2) i += String.fromCharCode(n[o] + 256 * n[o + 1]);
return i
}
function R(t, r, e) {
if (t % 1 != 0 || t < 0) throw new RangeError("offset is not uint");
if (t + r > e) throw new RangeError("Trying to access beyond buffer length")
}
function C(t, e, n, i, o, f) {
if (!r.isBuffer(t)) throw new TypeError('"buffer" argument must be a Buffer instance');
if (e > o || e < f) throw new RangeError('"value" argument is out of bounds');
if (n + i > t.length) throw new RangeError("Index out of range")
}
function O(t, r, e, n, i, o) {
if (e + n > t.length) throw new RangeError("Index out of range");
if (e < 0) throw new RangeError("Index out of range")
}
function _(t, r, e, n, o) {
return r = +r, e >>>= 0, o || O(t, 0, e, 4), i.write(t, r, e, n, 23, 4), e + 4
}
function x(t, r, e, n, o) {
return r = +r, e >>>= 0, o || O(t, 0, e, 8), i.write(t, r, e, n, 52, 8), e + 8
}
r.prototype.slice = function(t, e) {
var n = this.length;
(t = ~~t) < 0 ? (t += n) < 0 && (t = 0) : t > n && (t = n), (e = void 0 === e ? n : ~~e) < 0 ? (e += n) < 0 && (e = 0) : e > n && (e = n), e < t && (e = t);
var i = this.subarray(t, e);
return i.__proto__ = r.prototype, i
}, r.prototype.readUIntLE = function(t, r, e) {
t >>>= 0, r >>>= 0, e || R(t, r, this.length);
for (var n = this[t], i = 1, o = 0; ++o < r && (i *= 256);) n += this[t + o] * i;
return n
}, r.prototype.readUIntBE = function(t, r, e) {
t >>>= 0, r >>>= 0, e || R(t, r, this.length);
for (var n = this[t + --r], i = 1; r > 0 && (i *= 256);) n += this[t + --r] * i;
return n
}, r.prototype.readUInt8 = function(t, r) {
return t >>>= 0, r || R(t, 1, this.length), this[t]
}, r.prototype.readUInt16LE = function(t, r) {
return t >>>= 0, r || R(t, 2, this.length), this[t] | this[t + 1] << 8
}, r.prototype.readUInt16BE = function(t, r) {
return t >>>= 0, r || R(t, 2, this.length), this[t] << 8 | this[t + 1]
}, r.prototype.readUInt32LE = function(t, r) {
return t >>>= 0, r || R(t, 4, this.length), (this[t] | this[t + 1] << 8 | this[t + 2] << 16) + 16777216 * this[t + 3]
}, r.prototype.readUInt32BE = function(t, r) {
return t >>>= 0, r || R(t, 4, this.length), 16777216 * this[t] + (this[t + 1] << 16 | this[t + 2] << 8 | this[t + 3])
}, r.prototype.readIntLE = function(t, r, e) {
t >>>= 0, r >>>= 0, e || R(t, r, this.length);
for (var n = this[t], i = 1, o = 0; ++o < r && (i *= 256);) n += this[t + o] * i;
return n >= (i *= 128) && (n -= Math.pow(2, 8 * r)), n
}, r.prototype.readIntBE = function(t, r, e) {
t >>>= 0, r >>>= 0, e || R(t, r, this.length);
for (var n = r, i = 1, o = this[t + --n]; n > 0 && (i *= 256);) o += this[t + --n] * i;
return o >= (i *= 128) && (o -= Math.pow(2, 8 * r)), o
}, r.prototype.readInt8 = function(t, r) {
return t >>>= 0, r || R(t, 1, this.length), 128 & this[t] ? -1 * (255 - this[t] + 1) : this[t]
}, r.prototype.readInt16LE = function(t, r) {
t >>>= 0, r || R(t, 2, this.length);
var e = this[t] | this[t + 1] << 8;
return 32768 & e ? 4294901760 | e : e
}, r.prototype.readInt16BE = function(t, r) {
t >>>= 0, r || R(t, 2, this.length);
var e = this[t + 1] | this[t] << 8;
return 32768 & e ? 4294901760 | e : e
}, r.prototype.readInt32LE = function(t, r) {
return t >>>= 0, r || R(t, 4, this.length), this[t] | this[t + 1] << 8 | this[t + 2] << 16 | this[t + 3] << 24
}, r.prototype.readInt32BE = function(t, r) {
return t >>>= 0, r || R(t, 4, this.length), this[t] << 24 | this[t + 1] << 16 | this[t + 2] << 8 | this[t + 3]
}, r.prototype.readFloatLE = function(t, r) {
return t >>>= 0, r || R(t, 4, this.length), i.read(this, t, !0, 23, 4)
}, r.prototype.readFloatBE = function(t, r) {
return t >>>= 0, r || R(t, 4, this.length), i.read(this, t, !1, 23, 4)
}, r.prototype.readDoubleLE = function(t, r) {
return t >>>= 0, r || R(t, 8, this.length), i.read(this, t, !0, 52, 8)
}, r.prototype.readDoubleBE = function(t, r) {
return t >>>= 0, r || R(t, 8, this.length), i.read(this, t, !1, 52, 8)
}, r.prototype.writeUIntLE = function(t, r, e, n) {
(t = +t, r >>>= 0, e >>>= 0, n) || C(this, t, r, e, Math.pow(2, 8 * e) - 1, 0);
var i = 1,
o = 0;
for (this[r] = 255 & t; ++o < e && (i *= 256);) this[r + o] = t / i & 255;
return r + e
}, r.prototype.writeUIntBE = function(t, r, e, n) {
(t = +t, r >>>= 0, e >>>= 0, n) || C(this, t, r, e, Math.pow(2, 8 * e) - 1, 0);
var i = e - 1,
o = 1;
for (this[r + i] = 255 & t; --i >= 0 && (o *= 256);) this[r + i] = t / o & 255;
return r + e
}, r.prototype.writeUInt8 = function(t, r, e) {
return t = +t, r >>>= 0, e || C(this, t, r, 1, 255, 0), this[r] = 255 & t, r + 1
}, r.prototype.writeUInt16LE = function(t, r, e) {
return t = +t, r >>>= 0, e || C(this, t, r, 2, 65535, 0), this[r] = 255 & t, this[r + 1] = t >>> 8, r + 2
}, r.prototype.writeUInt16BE = function(t, r, e) {
return t = +t, r >>>= 0, e || C(this, t, r, 2, 65535, 0), this[r] = t >>> 8, this[r + 1] = 255 & t, r + 2
}, r.prototype.writeUInt32LE = function(t, r, e) {
return t = +t, r >>>= 0, e || C(this, t, r, 4, 4294967295, 0), this[r + 3] = t >>> 24, this[r + 2] = t >>> 16, this[r + 1] = t >>> 8, this[r] = 255 & t, r + 4
}, r.prototype.writeUInt32BE = function(t, r, e) {
return t = +t, r >>>= 0, e || C(this, t, r, 4, 4294967295, 0), this[r] = t >>> 24, this[r + 1] = t >>> 16, this[r + 2] = t >>> 8, this[r + 3] = 255 & t, r + 4
}, r.prototype.writeIntLE = function(t, r, e, n) {
if (t = +t, r >>>= 0, !n) {
var i = Math.pow(2, 8 * e - 1);
C(this, t, r, e, i - 1, -i)
}
var o = 0,
f = 1,
u = 0;
for (this[r] = 255 & t; ++o < e && (f *= 256);) t < 0 && 0 === u && 0 !== this[r + o - 1] && (u = 1), this[r + o] = (t / f >> 0) - u & 255;
return r + e
}, r.prototype.writeIntBE = function(t, r, e, n) {
if (t = +t, r >>>= 0, !n) {
var i = Math.pow(2, 8 * e - 1);
C(this, t, r, e, i - 1, -i)
}
var o = e - 1,
f = 1,
u = 0;
for (this[r + o] = 255 & t; --o >= 0 && (f *= 256);) t < 0 && 0 === u && 0 !== this[r + o + 1] && (u = 1), this[r + o] = (t / f >> 0) - u & 255;
return r + e
}, r.prototype.writeInt8 = function(t, r, e) {
return t = +t, r >>>= 0, e || C(this, t, r, 1, 127, -128), t < 0 && (t = 255 + t + 1), this[r] = 255 & t, r + 1
}, r.prototype.writeInt16LE = function(t, r, e) {
return t = +t, r >>>= 0, e || C(this, t, r, 2, 32767, -32768), this[r] = 255 & t, this[r + 1] = t >>> 8, r + 2
}, r.prototype.writeInt16BE = function(t, r, e) {
return t = +t, r >>>= 0, e || C(this, t, r, 2, 32767, -32768), this[r] = t >>> 8, this[r + 1] = 255 & t, r + 2
}, r.prototype.writeInt32LE = function(t, r, e) {
return t = +t, r >>>= 0, e || C(this, t, r, 4, 2147483647, -2147483648), this[r] = 255 & t, this[r + 1] = t >>> 8, this[r + 2] = t >>> 16, this[r + 3] = t >>> 24, r + 4
}, r.prototype.writeInt32BE = function(t, r, e) {
return t = +t, r >>>= 0, e || C(this, t, r, 4, 2147483647, -2147483648), t < 0 && (t = 4294967295 + t + 1), this[r] = t >>> 24, this[r + 1] = t >>> 16, this[r + 2] = t >>> 8, this[r + 3] = 255 & t, r + 4
}, r.prototype.writeFloatLE = function(t, r, e) {
return _(this, t, r, !0, e)
}, r.prototype.writeFloatBE = function(t, r, e) {
return _(this, t, r, !1, e)
}, r.prototype.writeDoubleLE = function(t, r, e) {
return x(this, t, r, !0, e)
}, r.prototype.writeDoubleBE = function(t, r, e) {
return x(this, t, r, !1, e)
}, r.prototype.copy = function(t, e, n, i) {
if (!r.isBuffer(t)) throw new TypeError("argument should be a Buffer");
if (n || (n = 0), i || 0 === i || (i = this.length), e >= t.length && (e = t.length), e || (e = 0), i > 0 && i < n && (i = n), i === n) return 0;
if (0 === t.length || 0 === this.length) return 0;
if (e < 0) throw new RangeError("targetStart out of bounds");
if (n < 0 || n >= this.length) throw new RangeError("Index out of range");
if (i < 0) throw new RangeError("sourceEnd out of bounds");
i > this.length && (i = this.length), t.length - e < i - n && (i = t.length - e + n);
var o = i - n;
if (this === t && "function" == typeof Uint8Array.prototype.copyWithin) this.copyWithin(e, n, i);
else if (this === t && n < e && e < i)
for (var f = o - 1; f >= 0; --f) t[f + e] = this[f + n];
else Uint8Array.prototype.set.call(t, this.subarray(n, i), e);
return o
}, r.prototype.fill = function(t, e, n, i) {
if ("string" == typeof t) {
if ("string" == typeof e ? (i = e, e = 0, n = this.length) : "string" == typeof n && (i = n, n = this.length), void 0 !== i && "string" != typeof i) throw new TypeError("encoding must be a string");
if ("string" == typeof i && !r.isEncoding(i)) throw new TypeError("Unknown encoding: " + i);
if (1 === t.length) {
var o = t.charCodeAt(0);
("utf8" === i && o < 128 || "latin1" === i) && (t = o)
}
} else "number" == typeof t && (t &= 255);
if (e < 0 || this.length < e || this.length < n) throw new RangeError("Out of range index");
if (n <= e) return this;
var f;
if (e >>>= 0, n = void 0 === n ? this.length : n >>> 0, t || (t = 0), "number" == typeof t)
for (f = e; f < n; ++f) this[f] = t;
else {
var u = r.isBuffer(t) ? t : r.from(t, i),
s = u.length;
if (0 === s) throw new TypeError('The value "' + t + '" is invalid for argument "value"');
for (f = 0; f < n - e; ++f) this[f + e] = u[f % s]
}
return this
};
var M = /[^+\/0-9A-Za-z-_]/g;
function k(t) {
return t < 16 ? "0" + t.toString(16) : t.toString(16)
}
function P(t, r) {
var e;
r = r || 1 / 0;
for (var n = t.length, i = null, o = [], f = 0; f < n; ++f) {
if ((e = t.charCodeAt(f)) > 55295 && e < 57344) {
if (!i) {
if (e > 56319) {
(r -= 3) > -1 && o.push(239, 191, 189);
continue
}
if (f + 1 === n) {
(r -= 3) > -1 && o.push(239, 191, 189);
continue
}
i = e;
continue
}
if (e < 56320) {
(r -= 3) > -1 && o.push(239, 191, 189), i = e;
continue
}
e = 65536 + (i - 55296 << 10 | e - 56320)
} else i && (r -= 3) > -1 && o.push(239, 191, 189);
if (i = null, e < 128) {
if ((r -= 1) < 0) break;
o.push(e)
} else if (e < 2048) {
if ((r -= 2) < 0) break;
o.push(e >> 6 | 192, 63 & e | 128)
} else if (e < 65536) {
if ((r -= 3) < 0) break;
o.push(e >> 12 | 224, e >> 6 & 63 | 128, 63 & e | 128)
} else {
if (!(e < 1114112)) throw new Error("Invalid code point");
if ((r -= 4) < 0) break;
o.push(e >> 18 | 240, e >> 12 & 63 | 128, e >> 6 & 63 | 128, 63 & e | 128)
}
}
return o
}
function j(t) {
return n.toByteArray(function(t) {
if ((t = (t = t.split("=")[0]).trim().replace(M, "")).length < 2) return "";
for (; t.length % 4 != 0;) t += "=";
return t
}(t))
}
function N(t, r, e, n) {
for (var i = 0; i < n && !(i + e >= r.length || i >= t.length); ++i) r[i + e] = t[i];
return i
}
function z(t, r) {
return t instanceof r || null != t && null != t.constructor && null != t.constructor.name && t.constructor.name === r.name
}
function D(t) {
return t != t
}
}).call(this, t("buffer").Buffer)
}, {
"base64-js": 4,
buffer: 5,
ieee754: 6
}],
6: [function(t, r, e) {
arguments[4][3][0].apply(e, arguments)
}, {
dup: 3
}]
}, {}, [1])(1)
});
Buffer=buffer.Buffer;
/* Remove any buffer toJSON bindings */
if (typeof Buffer != 'undefined' && Buffer.prototype.toJSON) delete Buffer.prototype.toJSON;
if (typeof buffer == 'object' && buffer.Buffer) delete buffer.Buffer.prototype.toJSON;
if (!ArrayBuffer['isView']) {
ArrayBuffer.isView = function(a) {
return a !== null && typeof(a) === "object" && a['buffer'] instanceof ArrayBuffer;
}
};
}
BufferInit();
Reference in New Issue View Git Blame Copy Permalink