-
-function utf8Slice (buf, start, end) {
- end = Math.min(buf.length, end)
- var res = []
-
- var i = start
- while (i < end) {
- var firstByte = buf[i]
- var codePoint = null
- var bytesPerSequence = (firstByte > 0xEF) ? 4
- : (firstByte > 0xDF) ? 3
- : (firstByte > 0xBF) ? 2
- : 1
-
- if (i + bytesPerSequence <= end) {
- var secondByte, thirdByte, fourthByte, tempCodePoint
-
- switch (bytesPerSequence) {
- case 1:
- if (firstByte < 0x80) {
- codePoint = firstByte
- }
- break
- case 2:
- secondByte = buf[i + 1]
- if ((secondByte & 0xC0) === 0x80) {
- tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
- if (tempCodePoint > 0x7F) {
- codePoint = tempCodePoint
- }
- }
- break
- case 3:
- secondByte = buf[i + 1]
- thirdByte = buf[i + 2]
- if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
- tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
- if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
- codePoint = tempCodePoint
- }
- }
- break
- case 4:
- secondByte = buf[i + 1]
- thirdByte = buf[i + 2]
- fourthByte = buf[i + 3]
- if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
- tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
- if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
- codePoint = tempCodePoint
- }
- }
- }
- }
-
- if (codePoint === null) {
- // we did not generate a valid codePoint so insert a
- // replacement char (U+FFFD) and advance only 1 byte
- codePoint = 0xFFFD
- bytesPerSequence = 1
- } else if (codePoint > 0xFFFF) {
- // encode to utf16 (surrogate pair dance)
- codePoint -= 0x10000
- res.push(codePoint >>> 10 & 0x3FF | 0xD800)
- codePoint = 0xDC00 | codePoint & 0x3FF
- }
-
- res.push(codePoint)
- i += bytesPerSequence
- }
-
- return decodeCodePointsArray(res)
-}
-
-// Based on http://stackoverflow.com/a/22747272/680742, the browser with
-// the lowest limit is Chrome, with 0x10000 args.
-// We go 1 magnitude less, for safety
-var MAX_ARGUMENTS_LENGTH = 0x1000
-
-function decodeCodePointsArray (codePoints) {
- var len = codePoints.length
- if (len <= MAX_ARGUMENTS_LENGTH) {
- return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
- }
-
- // Decode in chunks to avoid "call stack size exceeded".
- var res = ''
- var i = 0
- while (i < len) {
- res += String.fromCharCode.apply(
- String,
- codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
- )
- }
- return res
-}
-
-function asciiSlice (buf, start, end) {
- var ret = ''
- end = Math.min(buf.length, end)
-
- for (var i = start; i < end; ++i) {
- ret += String.fromCharCode(buf[i] & 0x7F)
- }
- return ret
-}
-
-function latin1Slice (buf, start, end) {
- var ret = ''
- end = Math.min(buf.length, end)
-
- for (var i = start; i < end; ++i) {
- ret += String.fromCharCode(buf[i])
- }
- return ret
-}
-
-function hexSlice (buf, start, end) {
- var len = buf.length
-
- if (!start || start < 0) start = 0
- if (!end || end < 0 || end > len) end = len
-
- var out = ''
- for (var i = start; i < end; ++i) {
- out += toHex(buf[i])
- }
- return out
-}
-
-function utf16leSlice (buf, start, end) {
- var bytes = buf.slice(start, end)
- var res = ''
- for (var i = 0; i < bytes.length; i += 2) {
- res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
- }
- return res
-}
-
-Buffer.prototype.slice = function slice (start, end) {
- var len = this.length
- start = ~~start
- end = end === undefined ? len : ~~end
-
- if (start < 0) {
- start += len
- if (start < 0) start = 0
- } else if (start > len) {
- start = len
- }
-
- if (end < 0) {
- end += len
- if (end < 0) end = 0
- } else if (end > len) {
- end = len
- }
-
- if (end < start) end = start
-
- var newBuf = this.subarray(start, end)
- // Return an augmented `Uint8Array` instance
- newBuf.__proto__ = Buffer.prototype
- return newBuf
-}
-
-/*
- * Need to make sure that buffer isn't trying to write out of bounds.
- */
-function checkOffset (offset, ext, length) {
- if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
- if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
-}
-
-Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
- offset = offset >>> 0
- byteLength = byteLength >>> 0
- if (!noAssert) checkOffset(offset, byteLength, this.length)
-
- var val = this[offset]
- var mul = 1
- var i = 0
- while (++i < byteLength && (mul *= 0x100)) {
- val += this[offset + i] * mul
- }
-
- return val
-}
-
-Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
- offset = offset >>> 0
- byteLength = byteLength >>> 0
- if (!noAssert) {
- checkOffset(offset, byteLength, this.length)
- }
-
- var val = this[offset + --byteLength]
- var mul = 1
- while (byteLength > 0 && (mul *= 0x100)) {
- val += this[offset + --byteLength] * mul
- }
-
- return val
-}
-
-Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 1, this.length)
- return this[offset]
-}
-
-Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 2, this.length)
- return this[offset] | (this[offset + 1] << 8)
-}
-
-Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 2, this.length)
- return (this[offset] << 8) | this[offset + 1]
-}
-
-Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 4, this.length)
-
- return ((this[offset]) |
- (this[offset + 1] << 8) |
- (this[offset + 2] << 16)) +
- (this[offset + 3] * 0x1000000)
-}
-
-Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 4, this.length)
-
- return (this[offset] * 0x1000000) +
- ((this[offset + 1] << 16) |
- (this[offset + 2] << 8) |
- this[offset + 3])
-}
-
-Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
- offset = offset >>> 0
- byteLength = byteLength >>> 0
- if (!noAssert) checkOffset(offset, byteLength, this.length)
-
- var val = this[offset]
- var mul = 1
- var i = 0
- while (++i < byteLength && (mul *= 0x100)) {
- val += this[offset + i] * mul
- }
- mul *= 0x80
-
- if (val >= mul) val -= Math.pow(2, 8 * byteLength)
-
- return val
-}
-
-Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
- offset = offset >>> 0
- byteLength = byteLength >>> 0
- if (!noAssert) checkOffset(offset, byteLength, this.length)
-
- var i = byteLength
- var mul = 1
- var val = this[offset + --i]
- while (i > 0 && (mul *= 0x100)) {
- val += this[offset + --i] * mul
- }
- mul *= 0x80
-
- if (val >= mul) val -= Math.pow(2, 8 * byteLength)
-
- return val
-}
-
-Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 1, this.length)
- if (!(this[offset] & 0x80)) return (this[offset])
- return ((0xff - this[offset] + 1) * -1)
-}
-
-Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 2, this.length)
- var val = this[offset] | (this[offset + 1] << 8)
- return (val & 0x8000) ? val | 0xFFFF0000 : val
-}
-
-Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 2, this.length)
- var val = this[offset + 1] | (this[offset] << 8)
- return (val & 0x8000) ? val | 0xFFFF0000 : val
-}
-
-Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 4, this.length)
-
- return (this[offset]) |
- (this[offset + 1] << 8) |
- (this[offset + 2] << 16) |
- (this[offset + 3] << 24)
-}
-
-Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 4, this.length)
-
- return (this[offset] << 24) |
- (this[offset + 1] << 16) |
- (this[offset + 2] << 8) |
- (this[offset + 3])
-}
-
-Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 4, this.length)
- return ieee754.read(this, offset, true, 23, 4)
-}
-
-Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 4, this.length)
- return ieee754.read(this, offset, false, 23, 4)
-}
-
-Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 8, this.length)
- return ieee754.read(this, offset, true, 52, 8)
-}
-
-Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
- offset = offset >>> 0
- if (!noAssert) checkOffset(offset, 8, this.length)
- return ieee754.read(this, offset, false, 52, 8)
-}
-
-function checkInt (buf, value, offset, ext, max, min) {
- if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
- if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
- if (offset + ext > buf.length) throw new RangeError('Index out of range')
-}
-
-Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
- value = +value
- offset = offset >>> 0
- byteLength = byteLength >>> 0
- if (!noAssert) {
- var maxBytes = Math.pow(2, 8 * byteLength) - 1
- checkInt(this, value, offset, byteLength, maxBytes, 0)
- }
-
- var mul = 1
- var i = 0
- this[offset] = value & 0xFF
- while (++i < byteLength && (mul *= 0x100)) {
- this[offset + i] = (value / mul) & 0xFF
- }
-
- return offset + byteLength
-}
-
-Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
- value = +value
- offset = offset >>> 0
- byteLength = byteLength >>> 0
- if (!noAssert) {
- var maxBytes = Math.pow(2, 8 * byteLength) - 1
- checkInt(this, value, offset, byteLength, maxBytes, 0)
- }
-
- var i = byteLength - 1
- var mul = 1
- this[offset + i] = value & 0xFF
- while (--i >= 0 && (mul *= 0x100)) {
- this[offset + i] = (value / mul) & 0xFF
- }
-
- return offset + byteLength
-}
-
-Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
- this[offset] = (value & 0xff)
- return offset + 1
-}
-
-Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
- this[offset] = (value & 0xff)
- this[offset + 1] = (value >>> 8)
- return offset + 2
-}
-
-Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
- this[offset] = (value >>> 8)
- this[offset + 1] = (value & 0xff)
- return offset + 2
-}
-
-Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
- this[offset + 3] = (value >>> 24)
- this[offset + 2] = (value >>> 16)
- this[offset + 1] = (value >>> 8)
- this[offset] = (value & 0xff)
- return offset + 4
-}
-
-Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
- this[offset] = (value >>> 24)
- this[offset + 1] = (value >>> 16)
- this[offset + 2] = (value >>> 8)
- this[offset + 3] = (value & 0xff)
- return offset + 4
-}
-
-Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) {
- var limit = Math.pow(2, (8 * byteLength) - 1)
-
- checkInt(this, value, offset, byteLength, limit - 1, -limit)
- }
-
- var i = 0
- var mul = 1
- var sub = 0
- this[offset] = value & 0xFF
- while (++i < byteLength && (mul *= 0x100)) {
- if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
- sub = 1
- }
- this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
- }
-
- return offset + byteLength
-}
-
-Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) {
- var limit = Math.pow(2, (8 * byteLength) - 1)
-
- checkInt(this, value, offset, byteLength, limit - 1, -limit)
- }
-
- var i = byteLength - 1
- var mul = 1
- var sub = 0
- this[offset + i] = value & 0xFF
- while (--i >= 0 && (mul *= 0x100)) {
- if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
- sub = 1
- }
- this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
- }
-
- return offset + byteLength
-}
-
-Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
- if (value < 0) value = 0xff + value + 1
- this[offset] = (value & 0xff)
- return offset + 1
-}
-
-Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
- this[offset] = (value & 0xff)
- this[offset + 1] = (value >>> 8)
- return offset + 2
-}
-
-Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
- this[offset] = (value >>> 8)
- this[offset + 1] = (value & 0xff)
- return offset + 2
-}
-
-Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
- this[offset] = (value & 0xff)
- this[offset + 1] = (value >>> 8)
- this[offset + 2] = (value >>> 16)
- this[offset + 3] = (value >>> 24)
- return offset + 4
-}
-
-Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
- if (value < 0) value = 0xffffffff + value + 1
- this[offset] = (value >>> 24)
- this[offset + 1] = (value >>> 16)
- this[offset + 2] = (value >>> 8)
- this[offset + 3] = (value & 0xff)
- return offset + 4
-}
-
-function checkIEEE754 (buf, value, offset, ext, max, min) {
- if (offset + ext > buf.length) throw new RangeError('Index out of range')
- if (offset < 0) throw new RangeError('Index out of range')
-}
-
-function writeFloat (buf, value, offset, littleEndian, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) {
- checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
- }
- ieee754.write(buf, value, offset, littleEndian, 23, 4)
- return offset + 4
-}
-
-Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
- return writeFloat(this, value, offset, true, noAssert)
-}
-
-Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
- return writeFloat(this, value, offset, false, noAssert)
-}
-
-function writeDouble (buf, value, offset, littleEndian, noAssert) {
- value = +value
- offset = offset >>> 0
- if (!noAssert) {
- checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
- }
- ieee754.write(buf, value, offset, littleEndian, 52, 8)
- return offset + 8
-}
-
-Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
- return writeDouble(this, value, offset, true, noAssert)
-}
-
-Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
- return writeDouble(this, value, offset, false, noAssert)
-}
-
-// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
-Buffer.prototype.copy = function copy (target, targetStart, start, end) {
- if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')
- if (!start) start = 0
- if (!end && end !== 0) end = this.length
- if (targetStart >= target.length) targetStart = target.length
- if (!targetStart) targetStart = 0
- if (end > 0 && end < start) end = start
-
- // Copy 0 bytes; we're done
- if (end === start) return 0
- if (target.length === 0 || this.length === 0) return 0
-
- // Fatal error conditions
- if (targetStart < 0) {
- throw new RangeError('targetStart out of bounds')
- }
- if (start < 0 || start >= this.length) throw new RangeError('Index out of range')
- if (end < 0) throw new RangeError('sourceEnd out of bounds')
-
- // Are we oob?
- if (end > this.length) end = this.length
- if (target.length - targetStart < end - start) {
- end = target.length - targetStart + start
- }
-
- var len = end - start
-
- if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
- // Use built-in when available, missing from IE11
- this.copyWithin(targetStart, start, end)
- } else if (this === target && start < targetStart && targetStart < end) {
- // descending copy from end
- for (var i = len - 1; i >= 0; --i) {
- target[i + targetStart] = this[i + start]
- }
- } else {
- Uint8Array.prototype.set.call(
- target,
- this.subarray(start, end),
- targetStart
- )
- }
-
- return len
-}
-
-// Usage:
-// buffer.fill(number[, offset[, end]])
-// buffer.fill(buffer[, offset[, end]])
-// buffer.fill(string[, offset[, end]][, encoding])
-Buffer.prototype.fill = function fill (val, start, end, encoding) {
- // Handle string cases:
- if (typeof val === 'string') {
- if (typeof start === 'string') {
- encoding = start
- start = 0
- end = this.length
- } else if (typeof end === 'string') {
- encoding = end
- end = this.length
- }
- if (encoding !== undefined && typeof encoding !== 'string') {
- throw new TypeError('encoding must be a string')
- }
- if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
- throw new TypeError('Unknown encoding: ' + encoding)
- }
- if (val.length === 1) {
- var code = val.charCodeAt(0)
- if ((encoding === 'utf8' && code < 128) ||
- encoding === 'latin1') {
- // Fast path: If `val` fits into a single byte, use that numeric value.
- val = code
- }
- }
- } else if (typeof val === 'number') {
- val = val & 255
- }
-
- // Invalid ranges are not set to a default, so can range check early.
- if (start < 0 || this.length < start || this.length < end) {
- throw new RangeError('Out of range index')
- }
-
- if (end <= start) {
- return this
- }
-
- start = start >>> 0
- end = end === undefined ? this.length : end >>> 0
-
- if (!val) val = 0
-
- var i
- if (typeof val === 'number') {
- for (i = start; i < end; ++i) {
- this[i] = val
- }
- } else {
- var bytes = Buffer.isBuffer(val)
- ? val
- : Buffer.from(val, encoding)
- var len = bytes.length
- if (len === 0) {
- throw new TypeError('The value "' + val +
- '" is invalid for argument "value"')
- }
- for (i = 0; i < end - start; ++i) {
- this[i + start] = bytes[i % len]
- }
- }
-
- return this
-}
-
-// HELPER FUNCTIONS
-// ================
-
-var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
-
-function base64clean (str) {
- // Node takes equal signs as end of the Base64 encoding
- str = str.split('=')[0]
- // Node strips out invalid characters like \n and \t from the string, base64-js does not
- str = str.trim().replace(INVALID_BASE64_RE, '')
- // Node converts strings with length < 2 to ''
- if (str.length < 2) return ''
- // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
- while (str.length % 4 !== 0) {
- str = str + '='
- }
- return str
-}
-
-function toHex (n) {
- if (n < 16) return '0' + n.toString(16)
- return n.toString(16)
-}
-
-function utf8ToBytes (string, units) {
- units = units || Infinity
- var codePoint
- var length = string.length
- var leadSurrogate = null
- var bytes = []
-
- for (var i = 0; i < length; ++i) {
- codePoint = string.charCodeAt(i)
-
- // is surrogate component
- if (codePoint > 0xD7FF && codePoint < 0xE000) {
- // last char was a lead
- if (!leadSurrogate) {
- // no lead yet
- if (codePoint > 0xDBFF) {
- // unexpected trail
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- continue
- } else if (i + 1 === length) {
- // unpaired lead
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- continue
- }
-
- // valid lead
- leadSurrogate = codePoint
-
- continue
- }
-
- // 2 leads in a row
- if (codePoint < 0xDC00) {
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- leadSurrogate = codePoint
- continue
- }
-
- // valid surrogate pair
- codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
- } else if (leadSurrogate) {
- // valid bmp char, but last char was a lead
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- }
-
- leadSurrogate = null
-
- // encode utf8
- if (codePoint < 0x80) {
- if ((units -= 1) < 0) break
- bytes.push(codePoint)
- } else if (codePoint < 0x800) {
- if ((units -= 2) < 0) break
- bytes.push(
- codePoint >> 0x6 | 0xC0,
- codePoint & 0x3F | 0x80
- )
- } else if (codePoint < 0x10000) {
- if ((units -= 3) < 0) break
- bytes.push(
- codePoint >> 0xC | 0xE0,
- codePoint >> 0x6 & 0x3F | 0x80,
- codePoint & 0x3F | 0x80
- )
- } else if (codePoint < 0x110000) {
- if ((units -= 4) < 0) break
- bytes.push(
- codePoint >> 0x12 | 0xF0,
- codePoint >> 0xC & 0x3F | 0x80,
- codePoint >> 0x6 & 0x3F | 0x80,
- codePoint & 0x3F | 0x80
- )
- } else {
- throw new Error('Invalid code point')
- }
- }
-
- return bytes
-}
-
-function asciiToBytes (str) {
- var byteArray = []
- for (var i = 0; i < str.length; ++i) {
- // Node's code seems to be doing this and not & 0x7F..
- byteArray.push(str.charCodeAt(i) & 0xFF)
- }
- return byteArray
-}
-
-function utf16leToBytes (str, units) {
- var c, hi, lo
- var byteArray = []
- for (var i = 0; i < str.length; ++i) {
- if ((units -= 2) < 0) break
-
- c = str.charCodeAt(i)
- hi = c >> 8
- lo = c % 256
- byteArray.push(lo)
- byteArray.push(hi)
- }
-
- return byteArray
-}
-
-function base64ToBytes (str) {
- return base64.toByteArray(base64clean(str))
-}
-
-function blitBuffer (src, dst, offset, length) {
- for (var i = 0; i < length; ++i) {
- if ((i + offset >= dst.length) || (i >= src.length)) break
- dst[i + offset] = src[i]
- }
- return i
-}
-
-// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
-// the `instanceof` check but they should be treated as of that type.
-// See: https://github.com/feross/buffer/issues/166
-function isInstance (obj, type) {
- return obj instanceof type ||
- (obj != null && obj.constructor != null && obj.constructor.name != null &&
- obj.constructor.name === type.name)
-}
-function numberIsNaN (obj) {
- // For IE11 support
- return obj !== obj // eslint-disable-line no-self-compare
-}
-
-}).call(this,require("buffer").Buffer)
-},{"base64-js":3,"buffer":6,"ieee754":12}],7:[function(require,module,exports){
-var Buffer = require('safe-buffer').Buffer
-var Transform = require('stream').Transform
-var StringDecoder = require('string_decoder').StringDecoder
-var inherits = require('inherits')
-
-function CipherBase (hashMode) {
- Transform.call(this)
- this.hashMode = typeof hashMode === 'string'
- if (this.hashMode) {
- this[hashMode] = this._finalOrDigest
- } else {
- this.final = this._finalOrDigest
- }
- if (this._final) {
- this.__final = this._final
- this._final = null
- }
- this._decoder = null
- this._encoding = null
-}
-inherits(CipherBase, Transform)
-
-CipherBase.prototype.update = function (data, inputEnc, outputEnc) {
- if (typeof data === 'string') {
- data = Buffer.from(data, inputEnc)
- }
-
- var outData = this._update(data)
- if (this.hashMode) return this
-
- if (outputEnc) {
- outData = this._toString(outData, outputEnc)
- }
-
- return outData
-}
-
-CipherBase.prototype.setAutoPadding = function () {}
-CipherBase.prototype.getAuthTag = function () {
- throw new Error('trying to get auth tag in unsupported state')
-}
-
-CipherBase.prototype.setAuthTag = function () {
- throw new Error('trying to set auth tag in unsupported state')
-}
-
-CipherBase.prototype.setAAD = function () {
- throw new Error('trying to set aad in unsupported state')
-}
-
-CipherBase.prototype._transform = function (data, _, next) {
- var err
- try {
- if (this.hashMode) {
- this._update(data)
- } else {
- this.push(this._update(data))
- }
- } catch (e) {
- err = e
- } finally {
- next(err)
- }
-}
-CipherBase.prototype._flush = function (done) {
- var err
- try {
- this.push(this.__final())
- } catch (e) {
- err = e
- }
-
- done(err)
-}
-CipherBase.prototype._finalOrDigest = function (outputEnc) {
- var outData = this.__final() || Buffer.alloc(0)
- if (outputEnc) {
- outData = this._toString(outData, outputEnc, true)
- }
- return outData
-}
-
-CipherBase.prototype._toString = function (value, enc, fin) {
- if (!this._decoder) {
- this._decoder = new StringDecoder(enc)
- this._encoding = enc
- }
-
- if (this._encoding !== enc) throw new Error('can\'t switch encodings')
-
- var out = this._decoder.write(value)
- if (fin) {
- out += this._decoder.end()
- }
-
- return out
-}
-
-module.exports = CipherBase
-
-},{"inherits":13,"safe-buffer":34,"stream":43,"string_decoder":44}],8:[function(require,module,exports){
-(function (Buffer){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// NOTE: These type checking functions intentionally don't use `instanceof`
-// because it is fragile and can be easily faked with `Object.create()`.
-
-function isArray(arg) {
- if (Array.isArray) {
- return Array.isArray(arg);
- }
- return objectToString(arg) === '[object Array]';
-}
-exports.isArray = isArray;
-
-function isBoolean(arg) {
- return typeof arg === 'boolean';
-}
-exports.isBoolean = isBoolean;
-
-function isNull(arg) {
- return arg === null;
-}
-exports.isNull = isNull;
-
-function isNullOrUndefined(arg) {
- return arg == null;
-}
-exports.isNullOrUndefined = isNullOrUndefined;
-
-function isNumber(arg) {
- return typeof arg === 'number';
-}
-exports.isNumber = isNumber;
-
-function isString(arg) {
- return typeof arg === 'string';
-}
-exports.isString = isString;
-
-function isSymbol(arg) {
- return typeof arg === 'symbol';
-}
-exports.isSymbol = isSymbol;
-
-function isUndefined(arg) {
- return arg === void 0;
-}
-exports.isUndefined = isUndefined;
-
-function isRegExp(re) {
- return objectToString(re) === '[object RegExp]';
-}
-exports.isRegExp = isRegExp;
-
-function isObject(arg) {
- return typeof arg === 'object' && arg !== null;
-}
-exports.isObject = isObject;
-
-function isDate(d) {
- return objectToString(d) === '[object Date]';
-}
-exports.isDate = isDate;
-
-function isError(e) {
- return (objectToString(e) === '[object Error]' || e instanceof Error);
-}
-exports.isError = isError;
-
-function isFunction(arg) {
- return typeof arg === 'function';
-}
-exports.isFunction = isFunction;
-
-function isPrimitive(arg) {
- return arg === null ||
- typeof arg === 'boolean' ||
- typeof arg === 'number' ||
- typeof arg === 'string' ||
- typeof arg === 'symbol' || // ES6 symbol
- typeof arg === 'undefined';
-}
-exports.isPrimitive = isPrimitive;
-
-exports.isBuffer = Buffer.isBuffer;
-
-function objectToString(o) {
- return Object.prototype.toString.call(o);
-}
-
-}).call(this,{"isBuffer":require("../../is-buffer/index.js")})
-},{"../../is-buffer/index.js":14}],9:[function(require,module,exports){
-'use strict'
-var inherits = require('inherits')
-var MD5 = require('md5.js')
-var RIPEMD160 = require('ripemd160')
-var sha = require('sha.js')
-var Base = require('cipher-base')
-
-function Hash (hash) {
- Base.call(this, 'digest')
-
- this._hash = hash
-}
-
-inherits(Hash, Base)
-
-Hash.prototype._update = function (data) {
- this._hash.update(data)
-}
-
-Hash.prototype._final = function () {
- return this._hash.digest()
-}
-
-module.exports = function createHash (alg) {
- alg = alg.toLowerCase()
- if (alg === 'md5') return new MD5()
- if (alg === 'rmd160' || alg === 'ripemd160') return new RIPEMD160()
-
- return new Hash(sha(alg))
-}
-
-},{"cipher-base":7,"inherits":13,"md5.js":16,"ripemd160":33,"sha.js":36}],10:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-var objectCreate = Object.create || objectCreatePolyfill
-var objectKeys = Object.keys || objectKeysPolyfill
-var bind = Function.prototype.bind || functionBindPolyfill
-
-function EventEmitter() {
- if (!this._events || !Object.prototype.hasOwnProperty.call(this, '_events')) {
- this._events = objectCreate(null);
- this._eventsCount = 0;
- }
-
- this._maxListeners = this._maxListeners || undefined;
-}
-module.exports = EventEmitter;
-
-// Backwards-compat with node 0.10.x
-EventEmitter.EventEmitter = EventEmitter;
-
-EventEmitter.prototype._events = undefined;
-EventEmitter.prototype._maxListeners = undefined;
-
-// By default EventEmitters will print a warning if more than 10 listeners are
-// added to it. This is a useful default which helps finding memory leaks.
-var defaultMaxListeners = 10;
-
-var hasDefineProperty;
-try {
- var o = {};
- if (Object.defineProperty) Object.defineProperty(o, 'x', { value: 0 });
- hasDefineProperty = o.x === 0;
-} catch (err) { hasDefineProperty = false }
-if (hasDefineProperty) {
- Object.defineProperty(EventEmitter, 'defaultMaxListeners', {
- enumerable: true,
- get: function() {
- return defaultMaxListeners;
- },
- set: function(arg) {
- // check whether the input is a positive number (whose value is zero or
- // greater and not a NaN).
- if (typeof arg !== 'number' || arg < 0 || arg !== arg)
- throw new TypeError('"defaultMaxListeners" must be a positive number');
- defaultMaxListeners = arg;
- }
- });
-} else {
- EventEmitter.defaultMaxListeners = defaultMaxListeners;
-}
-
-// Obviously not all Emitters should be limited to 10. This function allows
-// that to be increased. Set to zero for unlimited.
-EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
- if (typeof n !== 'number' || n < 0 || isNaN(n))
- throw new TypeError('"n" argument must be a positive number');
- this._maxListeners = n;
- return this;
-};
-
-function $getMaxListeners(that) {
- if (that._maxListeners === undefined)
- return EventEmitter.defaultMaxListeners;
- return that._maxListeners;
-}
-
-EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
- return $getMaxListeners(this);
-};
-
-// These standalone emit* functions are used to optimize calling of event
-// handlers for fast cases because emit() itself often has a variable number of
-// arguments and can be deoptimized because of that. These functions always have
-// the same number of arguments and thus do not get deoptimized, so the code
-// inside them can execute faster.
-function emitNone(handler, isFn, self) {
- if (isFn)
- handler.call(self);
- else {
- var len = handler.length;
- var listeners = arrayClone(handler, len);
- for (var i = 0; i < len; ++i)
- listeners[i].call(self);
- }
-}
-function emitOne(handler, isFn, self, arg1) {
- if (isFn)
- handler.call(self, arg1);
- else {
- var len = handler.length;
- var listeners = arrayClone(handler, len);
- for (var i = 0; i < len; ++i)
- listeners[i].call(self, arg1);
- }
-}
-function emitTwo(handler, isFn, self, arg1, arg2) {
- if (isFn)
- handler.call(self, arg1, arg2);
- else {
- var len = handler.length;
- var listeners = arrayClone(handler, len);
- for (var i = 0; i < len; ++i)
- listeners[i].call(self, arg1, arg2);
- }
-}
-function emitThree(handler, isFn, self, arg1, arg2, arg3) {
- if (isFn)
- handler.call(self, arg1, arg2, arg3);
- else {
- var len = handler.length;
- var listeners = arrayClone(handler, len);
- for (var i = 0; i < len; ++i)
- listeners[i].call(self, arg1, arg2, arg3);
- }
-}
-
-function emitMany(handler, isFn, self, args) {
- if (isFn)
- handler.apply(self, args);
- else {
- var len = handler.length;
- var listeners = arrayClone(handler, len);
- for (var i = 0; i < len; ++i)
- listeners[i].apply(self, args);
- }
-}
-
-EventEmitter.prototype.emit = function emit(type) {
- var er, handler, len, args, i, events;
- var doError = (type === 'error');
-
- events = this._events;
- if (events)
- doError = (doError && events.error == null);
- else if (!doError)
- return false;
-
- // If there is no 'error' event listener then throw.
- if (doError) {
- if (arguments.length > 1)
- er = arguments[1];
- if (er instanceof Error) {
- throw er; // Unhandled 'error' event
- } else {
- // At least give some kind of context to the user
- var err = new Error('Unhandled "error" event. (' + er + ')');
- err.context = er;
- throw err;
- }
- return false;
- }
-
- handler = events[type];
-
- if (!handler)
- return false;
-
- var isFn = typeof handler === 'function';
- len = arguments.length;
- switch (len) {
- // fast cases
- case 1:
- emitNone(handler, isFn, this);
- break;
- case 2:
- emitOne(handler, isFn, this, arguments[1]);
- break;
- case 3:
- emitTwo(handler, isFn, this, arguments[1], arguments[2]);
- break;
- case 4:
- emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]);
- break;
- // slower
- default:
- args = new Array(len - 1);
- for (i = 1; i < len; i++)
- args[i - 1] = arguments[i];
- emitMany(handler, isFn, this, args);
- }
-
- return true;
-};
-
-function _addListener(target, type, listener, prepend) {
- var m;
- var events;
- var existing;
-
- if (typeof listener !== 'function')
- throw new TypeError('"listener" argument must be a function');
-
- events = target._events;
- if (!events) {
- events = target._events = objectCreate(null);
- target._eventsCount = 0;
- } else {
- // To avoid recursion in the case that type === "newListener"! Before
- // adding it to the listeners, first emit "newListener".
- if (events.newListener) {
- target.emit('newListener', type,
- listener.listener ? listener.listener : listener);
-
- // Re-assign `events` because a newListener handler could have caused the
- // this._events to be assigned to a new object
- events = target._events;
- }
- existing = events[type];
- }
-
- if (!existing) {
- // Optimize the case of one listener. Don't need the extra array object.
- existing = events[type] = listener;
- ++target._eventsCount;
- } else {
- if (typeof existing === 'function') {
- // Adding the second element, need to change to array.
- existing = events[type] =
- prepend ? [listener, existing] : [existing, listener];
- } else {
- // If we've already got an array, just append.
- if (prepend) {
- existing.unshift(listener);
- } else {
- existing.push(listener);
- }
- }
-
- // Check for listener leak
- if (!existing.warned) {
- m = $getMaxListeners(target);
- if (m && m > 0 && existing.length > m) {
- existing.warned = true;
- var w = new Error('Possible EventEmitter memory leak detected. ' +
- existing.length + ' "' + String(type) + '" listeners ' +
- 'added. Use emitter.setMaxListeners() to ' +
- 'increase limit.');
- w.name = 'MaxListenersExceededWarning';
- w.emitter = target;
- w.type = type;
- w.count = existing.length;
- if (typeof console === 'object' && console.warn) {
- console.warn('%s: %s', w.name, w.message);
- }
- }
- }
- }
-
- return target;
-}
-
-EventEmitter.prototype.addListener = function addListener(type, listener) {
- return _addListener(this, type, listener, false);
-};
-
-EventEmitter.prototype.on = EventEmitter.prototype.addListener;
-
-EventEmitter.prototype.prependListener =
- function prependListener(type, listener) {
- return _addListener(this, type, listener, true);
- };
-
-function onceWrapper() {
- if (!this.fired) {
- this.target.removeListener(this.type, this.wrapFn);
- this.fired = true;
- switch (arguments.length) {
- case 0:
- return this.listener.call(this.target);
- case 1:
- return this.listener.call(this.target, arguments[0]);
- case 2:
- return this.listener.call(this.target, arguments[0], arguments[1]);
- case 3:
- return this.listener.call(this.target, arguments[0], arguments[1],
- arguments[2]);
- default:
- var args = new Array(arguments.length);
- for (var i = 0; i < args.length; ++i)
- args[i] = arguments[i];
- this.listener.apply(this.target, args);
- }
- }
-}
-
-function _onceWrap(target, type, listener) {
- var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };
- var wrapped = bind.call(onceWrapper, state);
- wrapped.listener = listener;
- state.wrapFn = wrapped;
- return wrapped;
-}
-
-EventEmitter.prototype.once = function once(type, listener) {
- if (typeof listener !== 'function')
- throw new TypeError('"listener" argument must be a function');
- this.on(type, _onceWrap(this, type, listener));
- return this;
-};
-
-EventEmitter.prototype.prependOnceListener =
- function prependOnceListener(type, listener) {
- if (typeof listener !== 'function')
- throw new TypeError('"listener" argument must be a function');
- this.prependListener(type, _onceWrap(this, type, listener));
- return this;
- };
-
-// Emits a 'removeListener' event if and only if the listener was removed.
-EventEmitter.prototype.removeListener =
- function removeListener(type, listener) {
- var list, events, position, i, originalListener;
-
- if (typeof listener !== 'function')
- throw new TypeError('"listener" argument must be a function');
-
- events = this._events;
- if (!events)
- return this;
-
- list = events[type];
- if (!list)
- return this;
-
- if (list === listener || list.listener === listener) {
- if (--this._eventsCount === 0)
- this._events = objectCreate(null);
- else {
- delete events[type];
- if (events.removeListener)
- this.emit('removeListener', type, list.listener || listener);
- }
- } else if (typeof list !== 'function') {
- position = -1;
-
- for (i = list.length - 1; i >= 0; i--) {
- if (list[i] === listener || list[i].listener === listener) {
- originalListener = list[i].listener;
- position = i;
- break;
- }
- }
-
- if (position < 0)
- return this;
-
- if (position === 0)
- list.shift();
- else
- spliceOne(list, position);
-
- if (list.length === 1)
- events[type] = list[0];
-
- if (events.removeListener)
- this.emit('removeListener', type, originalListener || listener);
- }
-
- return this;
- };
-
-EventEmitter.prototype.removeAllListeners =
- function removeAllListeners(type) {
- var listeners, events, i;
-
- events = this._events;
- if (!events)
- return this;
-
- // not listening for removeListener, no need to emit
- if (!events.removeListener) {
- if (arguments.length === 0) {
- this._events = objectCreate(null);
- this._eventsCount = 0;
- } else if (events[type]) {
- if (--this._eventsCount === 0)
- this._events = objectCreate(null);
- else
- delete events[type];
- }
- return this;
- }
-
- // emit removeListener for all listeners on all events
- if (arguments.length === 0) {
- var keys = objectKeys(events);
- var key;
- for (i = 0; i < keys.length; ++i) {
- key = keys[i];
- if (key === 'removeListener') continue;
- this.removeAllListeners(key);
- }
- this.removeAllListeners('removeListener');
- this._events = objectCreate(null);
- this._eventsCount = 0;
- return this;
- }
-
- listeners = events[type];
-
- if (typeof listeners === 'function') {
- this.removeListener(type, listeners);
- } else if (listeners) {
- // LIFO order
- for (i = listeners.length - 1; i >= 0; i--) {
- this.removeListener(type, listeners[i]);
- }
- }
-
- return this;
- };
-
-function _listeners(target, type, unwrap) {
- var events = target._events;
-
- if (!events)
- return [];
-
- var evlistener = events[type];
- if (!evlistener)
- return [];
-
- if (typeof evlistener === 'function')
- return unwrap ? [evlistener.listener || evlistener] : [evlistener];
-
- return unwrap ? unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);
-}
-
-EventEmitter.prototype.listeners = function listeners(type) {
- return _listeners(this, type, true);
-};
-
-EventEmitter.prototype.rawListeners = function rawListeners(type) {
- return _listeners(this, type, false);
-};
-
-EventEmitter.listenerCount = function(emitter, type) {
- if (typeof emitter.listenerCount === 'function') {
- return emitter.listenerCount(type);
- } else {
- return listenerCount.call(emitter, type);
- }
-};
-
-EventEmitter.prototype.listenerCount = listenerCount;
-function listenerCount(type) {
- var events = this._events;
-
- if (events) {
- var evlistener = events[type];
-
- if (typeof evlistener === 'function') {
- return 1;
- } else if (evlistener) {
- return evlistener.length;
- }
- }
-
- return 0;
-}
-
-EventEmitter.prototype.eventNames = function eventNames() {
- return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : [];
-};
-
-// About 1.5x faster than the two-arg version of Array#splice().
-function spliceOne(list, index) {
- for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1)
- list[i] = list[k];
- list.pop();
-}
-
-function arrayClone(arr, n) {
- var copy = new Array(n);
- for (var i = 0; i < n; ++i)
- copy[i] = arr[i];
- return copy;
-}
-
-function unwrapListeners(arr) {
- var ret = new Array(arr.length);
- for (var i = 0; i < ret.length; ++i) {
- ret[i] = arr[i].listener || arr[i];
- }
- return ret;
-}
-
-function objectCreatePolyfill(proto) {
- var F = function() {};
- F.prototype = proto;
- return new F;
-}
-function objectKeysPolyfill(obj) {
- var keys = [];
- for (var k in obj) if (Object.prototype.hasOwnProperty.call(obj, k)) {
- keys.push(k);
- }
- return k;
-}
-function functionBindPolyfill(context) {
- var fn = this;
- return function () {
- return fn.apply(context, arguments);
- };
-}
-
-},{}],11:[function(require,module,exports){
-'use strict'
-var Buffer = require('safe-buffer').Buffer
-var Transform = require('stream').Transform
-var inherits = require('inherits')
-
-function throwIfNotStringOrBuffer (val, prefix) {
- if (!Buffer.isBuffer(val) && typeof val !== 'string') {
- throw new TypeError(prefix + ' must be a string or a buffer')
- }
-}
-
-function HashBase (blockSize) {
- Transform.call(this)
-
- this._block = Buffer.allocUnsafe(blockSize)
- this._blockSize = blockSize
- this._blockOffset = 0
- this._length = [0, 0, 0, 0]
-
- this._finalized = false
-}
-
-inherits(HashBase, Transform)
-
-HashBase.prototype._transform = function (chunk, encoding, callback) {
- var error = null
- try {
- this.update(chunk, encoding)
- } catch (err) {
- error = err
- }
-
- callback(error)
-}
-
-HashBase.prototype._flush = function (callback) {
- var error = null
- try {
- this.push(this.digest())
- } catch (err) {
- error = err
- }
-
- callback(error)
-}
-
-HashBase.prototype.update = function (data, encoding) {
- throwIfNotStringOrBuffer(data, 'Data')
- if (this._finalized) throw new Error('Digest already called')
- if (!Buffer.isBuffer(data)) data = Buffer.from(data, encoding)
-
- // consume data
- var block = this._block
- var offset = 0
- while (this._blockOffset + data.length - offset >= this._blockSize) {
- for (var i = this._blockOffset; i < this._blockSize;) block[i++] = data[offset++]
- this._update()
- this._blockOffset = 0
- }
- while (offset < data.length) block[this._blockOffset++] = data[offset++]
-
- // update length
- for (var j = 0, carry = data.length * 8; carry > 0; ++j) {
- this._length[j] += carry
- carry = (this._length[j] / 0x0100000000) | 0
- if (carry > 0) this._length[j] -= 0x0100000000 * carry
- }
-
- return this
-}
-
-HashBase.prototype._update = function () {
- throw new Error('_update is not implemented')
-}
-
-HashBase.prototype.digest = function (encoding) {
- if (this._finalized) throw new Error('Digest already called')
- this._finalized = true
-
- var digest = this._digest()
- if (encoding !== undefined) digest = digest.toString(encoding)
-
- // reset state
- this._block.fill(0)
- this._blockOffset = 0
- for (var i = 0; i < 4; ++i) this._length[i] = 0
-
- return digest
-}
-
-HashBase.prototype._digest = function () {
- throw new Error('_digest is not implemented')
-}
-
-module.exports = HashBase
-
-},{"inherits":13,"safe-buffer":34,"stream":43}],12:[function(require,module,exports){
-exports.read = function (buffer, offset, isLE, mLen, nBytes) {
- var e, m
- var eLen = (nBytes * 8) - mLen - 1
- var eMax = (1 << eLen) - 1
- var eBias = eMax >> 1
- var nBits = -7
- var i = isLE ? (nBytes - 1) : 0
- var d = isLE ? -1 : 1
- var s = buffer[offset + i]
-
- i += d
-
- e = s & ((1 << (-nBits)) - 1)
- s >>= (-nBits)
- nBits += eLen
- for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}
-
- m = e & ((1 << (-nBits)) - 1)
- e >>= (-nBits)
- nBits += mLen
- for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}
-
- if (e === 0) {
- e = 1 - eBias
- } else if (e === eMax) {
- return m ? NaN : ((s ? -1 : 1) * Infinity)
- } else {
- m = m + Math.pow(2, mLen)
- e = e - eBias
- }
- return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
-}
-
-exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
- var e, m, c
- var eLen = (nBytes * 8) - mLen - 1
- var eMax = (1 << eLen) - 1
- var eBias = eMax >> 1
- var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
- var i = isLE ? 0 : (nBytes - 1)
- var d = isLE ? 1 : -1
- var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
-
- value = Math.abs(value)
-
- if (isNaN(value) || value === Infinity) {
- m = isNaN(value) ? 1 : 0
- e = eMax
- } else {
- e = Math.floor(Math.log(value) / Math.LN2)
- if (value * (c = Math.pow(2, -e)) < 1) {
- e--
- c *= 2
- }
- if (e + eBias >= 1) {
- value += rt / c
- } else {
- value += rt * Math.pow(2, 1 - eBias)
- }
- if (value * c >= 2) {
- e++
- c /= 2
- }
-
- if (e + eBias >= eMax) {
- m = 0
- e = eMax
- } else if (e + eBias >= 1) {
- m = ((value * c) - 1) * Math.pow(2, mLen)
- e = e + eBias
- } else {
- m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
- e = 0
- }
- }
-
- for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
-
- e = (e << mLen) | m
- eLen += mLen
- for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
-
- buffer[offset + i - d] |= s * 128
-}
-
-},{}],13:[function(require,module,exports){
-if (typeof Object.create === 'function') {
- // implementation from standard node.js 'util' module
- module.exports = function inherits(ctor, superCtor) {
- ctor.super_ = superCtor
- ctor.prototype = Object.create(superCtor.prototype, {
- constructor: {
- value: ctor,
- enumerable: false,
- writable: true,
- configurable: true
- }
- });
- };
-} else {
- // old school shim for old browsers
- module.exports = function inherits(ctor, superCtor) {
- ctor.super_ = superCtor
- var TempCtor = function () {}
- TempCtor.prototype = superCtor.prototype
- ctor.prototype = new TempCtor()
- ctor.prototype.constructor = ctor
- }
-}
-
-},{}],14:[function(require,module,exports){
-/*!
- * Determine if an object is a Buffer
- *
- * @author Feross Aboukhadijeh <https://feross.org>
- * @license MIT
- */
-
-// The _isBuffer check is for Safari 5-7 support, because it's missing
-// Object.prototype.constructor. Remove this eventually
-module.exports = function (obj) {
- return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
-}
-
-function isBuffer (obj) {
- return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
-}
-
-// For Node v0.10 support. Remove this eventually.
-function isSlowBuffer (obj) {
- return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
-}
-
-},{}],15:[function(require,module,exports){
-var toString = {}.toString;
-
-module.exports = Array.isArray || function (arr) {
- return toString.call(arr) == '[object Array]';
-};
-
-},{}],16:[function(require,module,exports){
-'use strict'
-var inherits = require('inherits')
-var HashBase = require('hash-base')
-var Buffer = require('safe-buffer').Buffer
-
-var ARRAY16 = new Array(16)
-
-function MD5 () {
- HashBase.call(this, 64)
-
- // state
- this._a = 0x67452301
- this._b = 0xefcdab89
- this._c = 0x98badcfe
- this._d = 0x10325476
-}
-
-inherits(MD5, HashBase)
-
-MD5.prototype._update = function () {
- var M = ARRAY16
- for (var i = 0; i < 16; ++i) M[i] = this._block.readInt32LE(i * 4)
-
- var a = this._a
- var b = this._b
- var c = this._c
- var d = this._d
-
- a = fnF(a, b, c, d, M[0], 0xd76aa478, 7)
- d = fnF(d, a, b, c, M[1], 0xe8c7b756, 12)
- c = fnF(c, d, a, b, M[2], 0x242070db, 17)
- b = fnF(b, c, d, a, M[3], 0xc1bdceee, 22)
- a = fnF(a, b, c, d, M[4], 0xf57c0faf, 7)
- d = fnF(d, a, b, c, M[5], 0x4787c62a, 12)
- c = fnF(c, d, a, b, M[6], 0xa8304613, 17)
- b = fnF(b, c, d, a, M[7], 0xfd469501, 22)
- a = fnF(a, b, c, d, M[8], 0x698098d8, 7)
- d = fnF(d, a, b, c, M[9], 0x8b44f7af, 12)
- c = fnF(c, d, a, b, M[10], 0xffff5bb1, 17)
- b = fnF(b, c, d, a, M[11], 0x895cd7be, 22)
- a = fnF(a, b, c, d, M[12], 0x6b901122, 7)
- d = fnF(d, a, b, c, M[13], 0xfd987193, 12)
- c = fnF(c, d, a, b, M[14], 0xa679438e, 17)
- b = fnF(b, c, d, a, M[15], 0x49b40821, 22)
-
- a = fnG(a, b, c, d, M[1], 0xf61e2562, 5)
- d = fnG(d, a, b, c, M[6], 0xc040b340, 9)
- c = fnG(c, d, a, b, M[11], 0x265e5a51, 14)
- b = fnG(b, c, d, a, M[0], 0xe9b6c7aa, 20)
- a = fnG(a, b, c, d, M[5], 0xd62f105d, 5)
- d = fnG(d, a, b, c, M[10], 0x02441453, 9)
- c = fnG(c, d, a, b, M[15], 0xd8a1e681, 14)
- b = fnG(b, c, d, a, M[4], 0xe7d3fbc8, 20)
- a = fnG(a, b, c, d, M[9], 0x21e1cde6, 5)
- d = fnG(d, a, b, c, M[14], 0xc33707d6, 9)
- c = fnG(c, d, a, b, M[3], 0xf4d50d87, 14)
- b = fnG(b, c, d, a, M[8], 0x455a14ed, 20)
- a = fnG(a, b, c, d, M[13], 0xa9e3e905, 5)
- d = fnG(d, a, b, c, M[2], 0xfcefa3f8, 9)
- c = fnG(c, d, a, b, M[7], 0x676f02d9, 14)
- b = fnG(b, c, d, a, M[12], 0x8d2a4c8a, 20)
-
- a = fnH(a, b, c, d, M[5], 0xfffa3942, 4)
- d = fnH(d, a, b, c, M[8], 0x8771f681, 11)
- c = fnH(c, d, a, b, M[11], 0x6d9d6122, 16)
- b = fnH(b, c, d, a, M[14], 0xfde5380c, 23)
- a = fnH(a, b, c, d, M[1], 0xa4beea44, 4)
- d = fnH(d, a, b, c, M[4], 0x4bdecfa9, 11)
- c = fnH(c, d, a, b, M[7], 0xf6bb4b60, 16)
- b = fnH(b, c, d, a, M[10], 0xbebfbc70, 23)
- a = fnH(a, b, c, d, M[13], 0x289b7ec6, 4)
- d = fnH(d, a, b, c, M[0], 0xeaa127fa, 11)
- c = fnH(c, d, a, b, M[3], 0xd4ef3085, 16)
- b = fnH(b, c, d, a, M[6], 0x04881d05, 23)
- a = fnH(a, b, c, d, M[9], 0xd9d4d039, 4)
- d = fnH(d, a, b, c, M[12], 0xe6db99e5, 11)
- c = fnH(c, d, a, b, M[15], 0x1fa27cf8, 16)
- b = fnH(b, c, d, a, M[2], 0xc4ac5665, 23)
-
- a = fnI(a, b, c, d, M[0], 0xf4292244, 6)
- d = fnI(d, a, b, c, M[7], 0x432aff97, 10)
- c = fnI(c, d, a, b, M[14], 0xab9423a7, 15)
- b = fnI(b, c, d, a, M[5], 0xfc93a039, 21)
- a = fnI(a, b, c, d, M[12], 0x655b59c3, 6)
- d = fnI(d, a, b, c, M[3], 0x8f0ccc92, 10)
- c = fnI(c, d, a, b, M[10], 0xffeff47d, 15)
- b = fnI(b, c, d, a, M[1], 0x85845dd1, 21)
- a = fnI(a, b, c, d, M[8], 0x6fa87e4f, 6)
- d = fnI(d, a, b, c, M[15], 0xfe2ce6e0, 10)
- c = fnI(c, d, a, b, M[6], 0xa3014314, 15)
- b = fnI(b, c, d, a, M[13], 0x4e0811a1, 21)
- a = fnI(a, b, c, d, M[4], 0xf7537e82, 6)
- d = fnI(d, a, b, c, M[11], 0xbd3af235, 10)
- c = fnI(c, d, a, b, M[2], 0x2ad7d2bb, 15)
- b = fnI(b, c, d, a, M[9], 0xeb86d391, 21)
-
- this._a = (this._a + a) | 0
- this._b = (this._b + b) | 0
- this._c = (this._c + c) | 0
- this._d = (this._d + d) | 0
-}
-
-MD5.prototype._digest = function () {
- // create padding and handle blocks
- this._block[this._blockOffset++] = 0x80
- if (this._blockOffset > 56) {
- this._block.fill(0, this._blockOffset, 64)
- this._update()
- this._blockOffset = 0
- }
-
- this._block.fill(0, this._blockOffset, 56)
- this._block.writeUInt32LE(this._length[0], 56)
- this._block.writeUInt32LE(this._length[1], 60)
- this._update()
-
- // produce result
- var buffer = Buffer.allocUnsafe(16)
- buffer.writeInt32LE(this._a, 0)
- buffer.writeInt32LE(this._b, 4)
- buffer.writeInt32LE(this._c, 8)
- buffer.writeInt32LE(this._d, 12)
- return buffer
-}
-
-function rotl (x, n) {
- return (x << n) | (x >>> (32 - n))
-}
-
-function fnF (a, b, c, d, m, k, s) {
- return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + b) | 0
-}
-
-function fnG (a, b, c, d, m, k, s) {
- return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + b) | 0
-}
-
-function fnH (a, b, c, d, m, k, s) {
- return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + b) | 0
-}
-
-function fnI (a, b, c, d, m, k, s) {
- return (rotl((a + ((c ^ (b | (~d)))) + m + k) | 0, s) + b) | 0
-}
-
-module.exports = MD5
-
-},{"hash-base":11,"inherits":13,"safe-buffer":34}],17:[function(require,module,exports){
-(function (process){
-'use strict';
-
-if (!process.version ||
- process.version.indexOf('v0.') === 0 ||
- process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
- module.exports = { nextTick: nextTick };
-} else {
- module.exports = process
-}
-
-function nextTick(fn, arg1, arg2, arg3) {
- if (typeof fn !== 'function') {
- throw new TypeError('"callback" argument must be a function');
- }
- var len = arguments.length;
- var args, i;
- switch (len) {
- case 0:
- case 1:
- return process.nextTick(fn);
- case 2:
- return process.nextTick(function afterTickOne() {
- fn.call(null, arg1);
- });
- case 3:
- return process.nextTick(function afterTickTwo() {
- fn.call(null, arg1, arg2);
- });
- case 4:
- return process.nextTick(function afterTickThree() {
- fn.call(null, arg1, arg2, arg3);
- });
- default:
- args = new Array(len - 1);
- i = 0;
- while (i < args.length) {
- args[i++] = arguments[i];
- }
- return process.nextTick(function afterTick() {
- fn.apply(null, args);
- });
- }
-}
-
-
-}).call(this,require('_process'))
-},{"_process":18}],18:[function(require,module,exports){
-// shim for using process in browser
-var process = module.exports = {};
-
-// cached from whatever global is present so that test runners that stub it
-// don't break things. But we need to wrap it in a try catch in case it is
-// wrapped in strict mode code which doesn't define any globals. It's inside a
-// function because try/catches deoptimize in certain engines.
-
-var cachedSetTimeout;
-var cachedClearTimeout;
-
-function defaultSetTimout() {
- throw new Error('setTimeout has not been defined');
-}
-function defaultClearTimeout () {
- throw new Error('clearTimeout has not been defined');
-}
-(function () {
- try {
- if (typeof setTimeout === 'function') {
- cachedSetTimeout = setTimeout;
- } else {
- cachedSetTimeout = defaultSetTimout;
- }
- } catch (e) {
- cachedSetTimeout = defaultSetTimout;
- }
- try {
- if (typeof clearTimeout === 'function') {
- cachedClearTimeout = clearTimeout;
- } else {
- cachedClearTimeout = defaultClearTimeout;
- }
- } catch (e) {
- cachedClearTimeout = defaultClearTimeout;
- }
-} ())
-function runTimeout(fun) {
- if (cachedSetTimeout === setTimeout) {
- //normal enviroments in sane situations
- return setTimeout(fun, 0);
- }
- // if setTimeout wasn't available but was latter defined
- if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
- cachedSetTimeout = setTimeout;
- return setTimeout(fun, 0);
- }
- try {
- // when when somebody has screwed with setTimeout but no I.E. maddness
- return cachedSetTimeout(fun, 0);
- } catch(e){
- try {
- // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
- return cachedSetTimeout.call(null, fun, 0);
- } catch(e){
- // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
- return cachedSetTimeout.call(this, fun, 0);
- }
- }
-
-
-}
-function runClearTimeout(marker) {
- if (cachedClearTimeout === clearTimeout) {
- //normal enviroments in sane situations
- return clearTimeout(marker);
- }
- // if clearTimeout wasn't available but was latter defined
- if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
- cachedClearTimeout = clearTimeout;
- return clearTimeout(marker);
- }
- try {
- // when when somebody has screwed with setTimeout but no I.E. maddness
- return cachedClearTimeout(marker);
- } catch (e){
- try {
- // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
- return cachedClearTimeout.call(null, marker);
- } catch (e){
- // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
- // Some versions of I.E. have different rules for clearTimeout vs setTimeout
- return cachedClearTimeout.call(this, marker);
- }
- }
-
-
-
-}
-var queue = [];
-var draining = false;
-var currentQueue;
-var queueIndex = -1;
-
-function cleanUpNextTick() {
- if (!draining || !currentQueue) {
- return;
- }
- draining = false;
- if (currentQueue.length) {
- queue = currentQueue.concat(queue);
- } else {
- queueIndex = -1;
- }
- if (queue.length) {
- drainQueue();
- }
-}
-
-function drainQueue() {
- if (draining) {
- return;
- }
- var timeout = runTimeout(cleanUpNextTick);
- draining = true;
-
- var len = queue.length;
- while(len) {
- currentQueue = queue;
- queue = [];
- while (++queueIndex < len) {
- if (currentQueue) {
- currentQueue[queueIndex].run();
- }
- }
- queueIndex = -1;
- len = queue.length;
- }
- currentQueue = null;
- draining = false;
- runClearTimeout(timeout);
-}
-
-process.nextTick = function (fun) {
- var args = new Array(arguments.length - 1);
- if (arguments.length > 1) {
- for (var i = 1; i < arguments.length; i++) {
- args[i - 1] = arguments[i];
- }
- }
- queue.push(new Item(fun, args));
- if (queue.length === 1 && !draining) {
- runTimeout(drainQueue);
- }
-};
-
-// v8 likes predictible objects
-function Item(fun, array) {
- this.fun = fun;
- this.array = array;
-}
-Item.prototype.run = function () {
- this.fun.apply(null, this.array);
-};
-process.title = 'browser';
-process.browser = true;
-process.env = {};
-process.argv = [];
-process.version = ''; // empty string to avoid regexp issues
-process.versions = {};
-
-function noop() {}
-
-process.on = noop;
-process.addListener = noop;
-process.once = noop;
-process.off = noop;
-process.removeListener = noop;
-process.removeAllListeners = noop;
-process.emit = noop;
-process.prependListener = noop;
-process.prependOnceListener = noop;
-
-process.listeners = function (name) { return [] }
-
-process.binding = function (name) {
- throw new Error('process.binding is not supported');
-};
-
-process.cwd = function () { return '/' };
-process.chdir = function (dir) {
- throw new Error('process.chdir is not supported');
-};
-process.umask = function() { return 0; };
-
-},{}],19:[function(require,module,exports){
-module.exports = require('./lib/_stream_duplex.js');
-
-},{"./lib/_stream_duplex.js":20}],20:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// a duplex stream is just a stream that is both readable and writable.
-// Since JS doesn't have multiple prototypal inheritance, this class
-// prototypally inherits from Readable, and then parasitically from
-// Writable.
-
-'use strict';
-
-/*<replacement>*/
-
-var pna = require('process-nextick-args');
-/*</replacement>*/
-
-/*<replacement>*/
-var objectKeys = Object.keys || function (obj) {
- var keys = [];
- for (var key in obj) {
- keys.push(key);
- }return keys;
-};
-/*</replacement>*/
-
-module.exports = Duplex;
-
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
-
-var Readable = require('./_stream_readable');
-var Writable = require('./_stream_writable');
-
-util.inherits(Duplex, Readable);
-
-{
- // avoid scope creep, the keys array can then be collected
- var keys = objectKeys(Writable.prototype);
- for (var v = 0; v < keys.length; v++) {
- var method = keys[v];
- if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
- }
-}
-
-function Duplex(options) {
- if (!(this instanceof Duplex)) return new Duplex(options);
-
- Readable.call(this, options);
- Writable.call(this, options);
-
- if (options && options.readable === false) this.readable = false;
-
- if (options && options.writable === false) this.writable = false;
-
- this.allowHalfOpen = true;
- if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
-
- this.once('end', onend);
-}
-
-Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
- // making it explicit this property is not enumerable
- // because otherwise some prototype manipulation in
- // userland will fail
- enumerable: false,
- get: function () {
- return this._writableState.highWaterMark;
- }
-});
-
-// the no-half-open enforcer
-function onend() {
- // if we allow half-open state, or if the writable side ended,
- // then we're ok.
- if (this.allowHalfOpen || this._writableState.ended) return;
-
- // no more data can be written.
- // But allow more writes to happen in this tick.
- pna.nextTick(onEndNT, this);
-}
-
-function onEndNT(self) {
- self.end();
-}
-
-Object.defineProperty(Duplex.prototype, 'destroyed', {
- get: function () {
- if (this._readableState === undefined || this._writableState === undefined) {
- return false;
- }
- return this._readableState.destroyed && this._writableState.destroyed;
- },
- set: function (value) {
- // we ignore the value if the stream
- // has not been initialized yet
- if (this._readableState === undefined || this._writableState === undefined) {
- return;
- }
-
- // backward compatibility, the user is explicitly
- // managing destroyed
- this._readableState.destroyed = value;
- this._writableState.destroyed = value;
- }
-});
-
-Duplex.prototype._destroy = function (err, cb) {
- this.push(null);
- this.end();
-
- pna.nextTick(cb, err);
-};
-},{"./_stream_readable":22,"./_stream_writable":24,"core-util-is":8,"inherits":13,"process-nextick-args":17}],21:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// a passthrough stream.
-// basically just the most minimal sort of Transform stream.
-// Every written chunk gets output as-is.
-
-'use strict';
-
-module.exports = PassThrough;
-
-var Transform = require('./_stream_transform');
-
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
-
-util.inherits(PassThrough, Transform);
-
-function PassThrough(options) {
- if (!(this instanceof PassThrough)) return new PassThrough(options);
-
- Transform.call(this, options);
-}
-
-PassThrough.prototype._transform = function (chunk, encoding, cb) {
- cb(null, chunk);
-};
-},{"./_stream_transform":23,"core-util-is":8,"inherits":13}],22:[function(require,module,exports){
-(function (process,global){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-'use strict';
-
-/*<replacement>*/
-
-var pna = require('process-nextick-args');
-/*</replacement>*/
-
-module.exports = Readable;
-
-/*<replacement>*/
-var isArray = require('isarray');
-/*</replacement>*/
-
-/*<replacement>*/
-var Duplex;
-/*</replacement>*/
-
-Readable.ReadableState = ReadableState;
-
-/*<replacement>*/
-var EE = require('events').EventEmitter;
-
-var EElistenerCount = function (emitter, type) {
- return emitter.listeners(type).length;
-};
-/*</replacement>*/
-
-/*<replacement>*/
-var Stream = require('./internal/streams/stream');
-/*</replacement>*/
-
-/*<replacement>*/
-
-var Buffer = require('safe-buffer').Buffer;
-var OurUint8Array = global.Uint8Array || function () {};
-function _uint8ArrayToBuffer(chunk) {
- return Buffer.from(chunk);
-}
-function _isUint8Array(obj) {
- return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
-}
-
-/*</replacement>*/
-
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
-
-/*<replacement>*/
-var debugUtil = require('util');
-var debug = void 0;
-if (debugUtil && debugUtil.debuglog) {
- debug = debugUtil.debuglog('stream');
-} else {
- debug = function () {};
-}
-/*</replacement>*/
-
-var BufferList = require('./internal/streams/BufferList');
-var destroyImpl = require('./internal/streams/destroy');
-var StringDecoder;
-
-util.inherits(Readable, Stream);
-
-var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
-
-function prependListener(emitter, event, fn) {
- // Sadly this is not cacheable as some libraries bundle their own
- // event emitter implementation with them.
- if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);
-
- // This is a hack to make sure that our error handler is attached before any
- // userland ones. NEVER DO THIS. This is here only because this code needs
- // to continue to work with older versions of Node.js that do not include
- // the prependListener() method. The goal is to eventually remove this hack.
- if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
-}
-
-function ReadableState(options, stream) {
- Duplex = Duplex || require('./_stream_duplex');
-
- options = options || {};
-
- // Duplex streams are both readable and writable, but share
- // the same options object.
- // However, some cases require setting options to different
- // values for the readable and the writable sides of the duplex stream.
- // These options can be provided separately as readableXXX and writableXXX.
- var isDuplex = stream instanceof Duplex;
-
- // object stream flag. Used to make read(n) ignore n and to
- // make all the buffer merging and length checks go away
- this.objectMode = !!options.objectMode;
-
- if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
-
- // the point at which it stops calling _read() to fill the buffer
- // Note: 0 is a valid value, means "don't call _read preemptively ever"
- var hwm = options.highWaterMark;
- var readableHwm = options.readableHighWaterMark;
- var defaultHwm = this.objectMode ? 16 : 16 * 1024;
-
- if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm;
-
- // cast to ints.
- this.highWaterMark = Math.floor(this.highWaterMark);
-
- // A linked list is used to store data chunks instead of an array because the
- // linked list can remove elements from the beginning faster than
- // array.shift()
- this.buffer = new BufferList();
- this.length = 0;
- this.pipes = null;
- this.pipesCount = 0;
- this.flowing = null;
- this.ended = false;
- this.endEmitted = false;
- this.reading = false;
-
- // a flag to be able to tell if the event 'readable'/'data' is emitted
- // immediately, or on a later tick. We set this to true at first, because
- // any actions that shouldn't happen until "later" should generally also
- // not happen before the first read call.
- this.sync = true;
-
- // whenever we return null, then we set a flag to say
- // that we're awaiting a 'readable' event emission.
- this.needReadable = false;
- this.emittedReadable = false;
- this.readableListening = false;
- this.resumeScheduled = false;
-
- // has it been destroyed
- this.destroyed = false;
-
- // Crypto is kind of old and crusty. Historically, its default string
- // encoding is 'binary' so we have to make this configurable.
- // Everything else in the universe uses 'utf8', though.
- this.defaultEncoding = options.defaultEncoding || 'utf8';
-
- // the number of writers that are awaiting a drain event in .pipe()s
- this.awaitDrain = 0;
-
- // if true, a maybeReadMore has been scheduled
- this.readingMore = false;
-
- this.decoder = null;
- this.encoding = null;
- if (options.encoding) {
- if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
- this.decoder = new StringDecoder(options.encoding);
- this.encoding = options.encoding;
- }
-}
-
-function Readable(options) {
- Duplex = Duplex || require('./_stream_duplex');
-
- if (!(this instanceof Readable)) return new Readable(options);
-
- this._readableState = new ReadableState(options, this);
-
- // legacy
- this.readable = true;
-
- if (options) {
- if (typeof options.read === 'function') this._read = options.read;
-
- if (typeof options.destroy === 'function') this._destroy = options.destroy;
- }
-
- Stream.call(this);
-}
-
-Object.defineProperty(Readable.prototype, 'destroyed', {
- get: function () {
- if (this._readableState === undefined) {
- return false;
- }
- return this._readableState.destroyed;
- },
- set: function (value) {
- // we ignore the value if the stream
- // has not been initialized yet
- if (!this._readableState) {
- return;
- }
-
- // backward compatibility, the user is explicitly
- // managing destroyed
- this._readableState.destroyed = value;
- }
-});
-
-Readable.prototype.destroy = destroyImpl.destroy;
-Readable.prototype._undestroy = destroyImpl.undestroy;
-Readable.prototype._destroy = function (err, cb) {
- this.push(null);
- cb(err);
-};
-
-// Manually shove something into the read() buffer.
-// This returns true if the highWaterMark has not been hit yet,
-// similar to how Writable.write() returns true if you should
-// write() some more.
-Readable.prototype.push = function (chunk, encoding) {
- var state = this._readableState;
- var skipChunkCheck;
-
- if (!state.objectMode) {
- if (typeof chunk === 'string') {
- encoding = encoding || state.defaultEncoding;
- if (encoding !== state.encoding) {
- chunk = Buffer.from(chunk, encoding);
- encoding = '';
- }
- skipChunkCheck = true;
- }
- } else {
- skipChunkCheck = true;
- }
-
- return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
-};
-
-// Unshift should *always* be something directly out of read()
-Readable.prototype.unshift = function (chunk) {
- return readableAddChunk(this, chunk, null, true, false);
-};
-
-function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
- var state = stream._readableState;
- if (chunk === null) {
- state.reading = false;
- onEofChunk(stream, state);
- } else {
- var er;
- if (!skipChunkCheck) er = chunkInvalid(state, chunk);
- if (er) {
- stream.emit('error', er);
- } else if (state.objectMode || chunk && chunk.length > 0) {
- if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
- chunk = _uint8ArrayToBuffer(chunk);
- }
-
- if (addToFront) {
- if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
- } else if (state.ended) {
- stream.emit('error', new Error('stream.push() after EOF'));
- } else {
- state.reading = false;
- if (state.decoder && !encoding) {
- chunk = state.decoder.write(chunk);
- if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
- } else {
- addChunk(stream, state, chunk, false);
- }
- }
- } else if (!addToFront) {
- state.reading = false;
- }
- }
-
- return needMoreData(state);
-}
-
-function addChunk(stream, state, chunk, addToFront) {
- if (state.flowing && state.length === 0 && !state.sync) {
- stream.emit('data', chunk);
- stream.read(0);
- } else {
- // update the buffer info.
- state.length += state.objectMode ? 1 : chunk.length;
- if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
-
- if (state.needReadable) emitReadable(stream);
- }
- maybeReadMore(stream, state);
-}
-
-function chunkInvalid(state, chunk) {
- var er;
- if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
- er = new TypeError('Invalid non-string/buffer chunk');
- }
- return er;
-}
-
-// if it's past the high water mark, we can push in some more.
-// Also, if we have no data yet, we can stand some
-// more bytes. This is to work around cases where hwm=0,
-// such as the repl. Also, if the push() triggered a
-// readable event, and the user called read(largeNumber) such that
-// needReadable was set, then we ought to push more, so that another
-// 'readable' event will be triggered.
-function needMoreData(state) {
- return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
-}
-
-Readable.prototype.isPaused = function () {
- return this._readableState.flowing === false;
-};
-
-// backwards compatibility.
-Readable.prototype.setEncoding = function (enc) {
- if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
- this._readableState.decoder = new StringDecoder(enc);
- this._readableState.encoding = enc;
- return this;
-};
-
-// Don't raise the hwm > 8MB
-var MAX_HWM = 0x800000;
-function computeNewHighWaterMark(n) {
- if (n >= MAX_HWM) {
- n = MAX_HWM;
- } else {
- // Get the next highest power of 2 to prevent increasing hwm excessively in
- // tiny amounts
- n--;
- n |= n >>> 1;
- n |= n >>> 2;
- n |= n >>> 4;
- n |= n >>> 8;
- n |= n >>> 16;
- n++;
- }
- return n;
-}
-
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function howMuchToRead(n, state) {
- if (n <= 0 || state.length === 0 && state.ended) return 0;
- if (state.objectMode) return 1;
- if (n !== n) {
- // Only flow one buffer at a time
- if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
- }
- // If we're asking for more than the current hwm, then raise the hwm.
- if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
- if (n <= state.length) return n;
- // Don't have enough
- if (!state.ended) {
- state.needReadable = true;
- return 0;
- }
- return state.length;
-}
-
-// you can override either this method, or the async _read(n) below.
-Readable.prototype.read = function (n) {
- debug('read', n);
- n = parseInt(n, 10);
- var state = this._readableState;
- var nOrig = n;
-
- if (n !== 0) state.emittedReadable = false;
-
- // if we're doing read(0) to trigger a readable event, but we
- // already have a bunch of data in the buffer, then just trigger
- // the 'readable' event and move on.
- if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
- debug('read: emitReadable', state.length, state.ended);
- if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
- return null;
- }
-
- n = howMuchToRead(n, state);
-
- // if we've ended, and we're now clear, then finish it up.
- if (n === 0 && state.ended) {
- if (state.length === 0) endReadable(this);
- return null;
- }
-
- // All the actual chunk generation logic needs to be
- // *below* the call to _read. The reason is that in certain
- // synthetic stream cases, such as passthrough streams, _read
- // may be a completely synchronous operation which may change
- // the state of the read buffer, providing enough data when
- // before there was *not* enough.
- //
- // So, the steps are:
- // 1. Figure out what the state of things will be after we do
- // a read from the buffer.
- //
- // 2. If that resulting state will trigger a _read, then call _read.
- // Note that this may be asynchronous, or synchronous. Yes, it is
- // deeply ugly to write APIs this way, but that still doesn't mean
- // that the Readable class should behave improperly, as streams are
- // designed to be sync/async agnostic.
- // Take note if the _read call is sync or async (ie, if the read call
- // has returned yet), so that we know whether or not it's safe to emit
- // 'readable' etc.
- //
- // 3. Actually pull the requested chunks out of the buffer and return.
-
- // if we need a readable event, then we need to do some reading.
- var doRead = state.needReadable;
- debug('need readable', doRead);
-
- // if we currently have less than the highWaterMark, then also read some
- if (state.length === 0 || state.length - n < state.highWaterMark) {
- doRead = true;
- debug('length less than watermark', doRead);
- }
-
- // however, if we've ended, then there's no point, and if we're already
- // reading, then it's unnecessary.
- if (state.ended || state.reading) {
- doRead = false;
- debug('reading or ended', doRead);
- } else if (doRead) {
- debug('do read');
- state.reading = true;
- state.sync = true;
- // if the length is currently zero, then we *need* a readable event.
- if (state.length === 0) state.needReadable = true;
- // call internal read method
- this._read(state.highWaterMark);
- state.sync = false;
- // If _read pushed data synchronously, then `reading` will be false,
- // and we need to re-evaluate how much data we can return to the user.
- if (!state.reading) n = howMuchToRead(nOrig, state);
- }
-
- var ret;
- if (n > 0) ret = fromList(n, state);else ret = null;
-
- if (ret === null) {
- state.needReadable = true;
- n = 0;
- } else {
- state.length -= n;
- }
-
- if (state.length === 0) {
- // If we have nothing in the buffer, then we want to know
- // as soon as we *do* get something into the buffer.
- if (!state.ended) state.needReadable = true;
-
- // If we tried to read() past the EOF, then emit end on the next tick.
- if (nOrig !== n && state.ended) endReadable(this);
- }
-
- if (ret !== null) this.emit('data', ret);
-
- return ret;
-};
-
-function onEofChunk(stream, state) {
- if (state.ended) return;
- if (state.decoder) {
- var chunk = state.decoder.end();
- if (chunk && chunk.length) {
- state.buffer.push(chunk);
- state.length += state.objectMode ? 1 : chunk.length;
- }
- }
- state.ended = true;
-
- // emit 'readable' now to make sure it gets picked up.
- emitReadable(stream);
-}
-
-// Don't emit readable right away in sync mode, because this can trigger
-// another read() call => stack overflow. This way, it might trigger
-// a nextTick recursion warning, but that's not so bad.
-function emitReadable(stream) {
- var state = stream._readableState;
- state.needReadable = false;
- if (!state.emittedReadable) {
- debug('emitReadable', state.flowing);
- state.emittedReadable = true;
- if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream);
- }
-}
-
-function emitReadable_(stream) {
- debug('emit readable');
- stream.emit('readable');
- flow(stream);
-}
-
-// at this point, the user has presumably seen the 'readable' event,
-// and called read() to consume some data. that may have triggered
-// in turn another _read(n) call, in which case reading = true if
-// it's in progress.
-// However, if we're not ended, or reading, and the length < hwm,
-// then go ahead and try to read some more preemptively.
-function maybeReadMore(stream, state) {
- if (!state.readingMore) {
- state.readingMore = true;
- pna.nextTick(maybeReadMore_, stream, state);
- }
-}
-
-function maybeReadMore_(stream, state) {
- var len = state.length;
- while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
- debug('maybeReadMore read 0');
- stream.read(0);
- if (len === state.length)
- // didn't get any data, stop spinning.
- break;else len = state.length;
- }
- state.readingMore = false;
-}
-
-// abstract method. to be overridden in specific implementation classes.
-// call cb(er, data) where data is <= n in length.
-// for virtual (non-string, non-buffer) streams, "length" is somewhat
-// arbitrary, and perhaps not very meaningful.
-Readable.prototype._read = function (n) {
- this.emit('error', new Error('_read() is not implemented'));
-};
-
-Readable.prototype.pipe = function (dest, pipeOpts) {
- var src = this;
- var state = this._readableState;
-
- switch (state.pipesCount) {
- case 0:
- state.pipes = dest;
- break;
- case 1:
- state.pipes = [state.pipes, dest];
- break;
- default:
- state.pipes.push(dest);
- break;
- }
- state.pipesCount += 1;
- debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
-
- var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
-
- var endFn = doEnd ? onend : unpipe;
- if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn);
-
- dest.on('unpipe', onunpipe);
- function onunpipe(readable, unpipeInfo) {
- debug('onunpipe');
- if (readable === src) {
- if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
- unpipeInfo.hasUnpiped = true;
- cleanup();
- }
- }
- }
-
- function onend() {
- debug('onend');
- dest.end();
- }
-
- // when the dest drains, it reduces the awaitDrain counter
- // on the source. This would be more elegant with a .once()
- // handler in flow(), but adding and removing repeatedly is
- // too slow.
- var ondrain = pipeOnDrain(src);
- dest.on('drain', ondrain);
-
- var cleanedUp = false;
- function cleanup() {
- debug('cleanup');
- // cleanup event handlers once the pipe is broken
- dest.removeListener('close', onclose);
- dest.removeListener('finish', onfinish);
- dest.removeListener('drain', ondrain);
- dest.removeListener('error', onerror);
- dest.removeListener('unpipe', onunpipe);
- src.removeListener('end', onend);
- src.removeListener('end', unpipe);
- src.removeListener('data', ondata);
-
- cleanedUp = true;
-
- // if the reader is waiting for a drain event from this
- // specific writer, then it would cause it to never start
- // flowing again.
- // So, if this is awaiting a drain, then we just call it now.
- // If we don't know, then assume that we are waiting for one.
- if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
- }
-
- // If the user pushes more data while we're writing to dest then we'll end up
- // in ondata again. However, we only want to increase awaitDrain once because
- // dest will only emit one 'drain' event for the multiple writes.
- // => Introduce a guard on increasing awaitDrain.
- var increasedAwaitDrain = false;
- src.on('data', ondata);
- function ondata(chunk) {
- debug('ondata');
- increasedAwaitDrain = false;
- var ret = dest.write(chunk);
- if (false === ret && !increasedAwaitDrain) {
- // If the user unpiped during `dest.write()`, it is possible
- // to get stuck in a permanently paused state if that write
- // also returned false.
- // => Check whether `dest` is still a piping destination.
- if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
- debug('false write response, pause', src._readableState.awaitDrain);
- src._readableState.awaitDrain++;
- increasedAwaitDrain = true;
- }
- src.pause();
- }
- }
-
- // if the dest has an error, then stop piping into it.
- // however, don't suppress the throwing behavior for this.
- function onerror(er) {
- debug('onerror', er);
- unpipe();
- dest.removeListener('error', onerror);
- if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
- }
-
- // Make sure our error handler is attached before userland ones.
- prependListener(dest, 'error', onerror);
-
- // Both close and finish should trigger unpipe, but only once.
- function onclose() {
- dest.removeListener('finish', onfinish);
- unpipe();
- }
- dest.once('close', onclose);
- function onfinish() {
- debug('onfinish');
- dest.removeListener('close', onclose);
- unpipe();
- }
- dest.once('finish', onfinish);
-
- function unpipe() {
- debug('unpipe');
- src.unpipe(dest);
- }
-
- // tell the dest that it's being piped to
- dest.emit('pipe', src);
-
- // start the flow if it hasn't been started already.
- if (!state.flowing) {
- debug('pipe resume');
- src.resume();
- }
-
- return dest;
-};
-
-function pipeOnDrain(src) {
- return function () {
- var state = src._readableState;
- debug('pipeOnDrain', state.awaitDrain);
- if (state.awaitDrain) state.awaitDrain--;
- if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
- state.flowing = true;
- flow(src);
- }
- };
-}
-
-Readable.prototype.unpipe = function (dest) {
- var state = this._readableState;
- var unpipeInfo = { hasUnpiped: false };
-
- // if we're not piping anywhere, then do nothing.
- if (state.pipesCount === 0) return this;
-
- // just one destination. most common case.
- if (state.pipesCount === 1) {
- // passed in one, but it's not the right one.
- if (dest && dest !== state.pipes) return this;
-
- if (!dest) dest = state.pipes;
-
- // got a match.
- state.pipes = null;
- state.pipesCount = 0;
- state.flowing = false;
- if (dest) dest.emit('unpipe', this, unpipeInfo);
- return this;
- }
-
- // slow case. multiple pipe destinations.
-
- if (!dest) {
- // remove all.
- var dests = state.pipes;
- var len = state.pipesCount;
- state.pipes = null;
- state.pipesCount = 0;
- state.flowing = false;
-
- for (var i = 0; i < len; i++) {
- dests[i].emit('unpipe', this, unpipeInfo);
- }return this;
- }
-
- // try to find the right one.
- var index = indexOf(state.pipes, dest);
- if (index === -1) return this;
-
- state.pipes.splice(index, 1);
- state.pipesCount -= 1;
- if (state.pipesCount === 1) state.pipes = state.pipes[0];
-
- dest.emit('unpipe', this, unpipeInfo);
-
- return this;
-};
-
-// set up data events if they are asked for
-// Ensure readable listeners eventually get something
-Readable.prototype.on = function (ev, fn) {
- var res = Stream.prototype.on.call(this, ev, fn);
-
- if (ev === 'data') {
- // Start flowing on next tick if stream isn't explicitly paused
- if (this._readableState.flowing !== false) this.resume();
- } else if (ev === 'readable') {
- var state = this._readableState;
- if (!state.endEmitted && !state.readableListening) {
- state.readableListening = state.needReadable = true;
- state.emittedReadable = false;
- if (!state.reading) {
- pna.nextTick(nReadingNextTick, this);
- } else if (state.length) {
- emitReadable(this);
- }
- }
- }
-
- return res;
-};
-Readable.prototype.addListener = Readable.prototype.on;
-
-function nReadingNextTick(self) {
- debug('readable nexttick read 0');
- self.read(0);
-}
-
-// pause() and resume() are remnants of the legacy readable stream API
-// If the user uses them, then switch into old mode.
-Readable.prototype.resume = function () {
- var state = this._readableState;
- if (!state.flowing) {
- debug('resume');
- state.flowing = true;
- resume(this, state);
- }
- return this;
-};
-
-function resume(stream, state) {
- if (!state.resumeScheduled) {
- state.resumeScheduled = true;
- pna.nextTick(resume_, stream, state);
- }
-}
-
-function resume_(stream, state) {
- if (!state.reading) {
- debug('resume read 0');
- stream.read(0);
- }
-
- state.resumeScheduled = false;
- state.awaitDrain = 0;
- stream.emit('resume');
- flow(stream);
- if (state.flowing && !state.reading) stream.read(0);
-}
-
-Readable.prototype.pause = function () {
- debug('call pause flowing=%j', this._readableState.flowing);
- if (false !== this._readableState.flowing) {
- debug('pause');
- this._readableState.flowing = false;
- this.emit('pause');
- }
- return this;
-};
-
-function flow(stream) {
- var state = stream._readableState;
- debug('flow', state.flowing);
- while (state.flowing && stream.read() !== null) {}
-}
-
-// wrap an old-style stream as the async data source.
-// This is *not* part of the readable stream interface.
-// It is an ugly unfortunate mess of history.
-Readable.prototype.wrap = function (stream) {
- var _this = this;
-
- var state = this._readableState;
- var paused = false;
-
- stream.on('end', function () {
- debug('wrapped end');
- if (state.decoder && !state.ended) {
- var chunk = state.decoder.end();
- if (chunk && chunk.length) _this.push(chunk);
- }
-
- _this.push(null);
- });
-
- stream.on('data', function (chunk) {
- debug('wrapped data');
- if (state.decoder) chunk = state.decoder.write(chunk);
-
- // don't skip over falsy values in objectMode
- if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
-
- var ret = _this.push(chunk);
- if (!ret) {
- paused = true;
- stream.pause();
- }
- });
-
- // proxy all the other methods.
- // important when wrapping filters and duplexes.
- for (var i in stream) {
- if (this[i] === undefined && typeof stream[i] === 'function') {
- this[i] = function (method) {
- return function () {
- return stream[method].apply(stream, arguments);
- };
- }(i);
- }
- }
-
- // proxy certain important events.
- for (var n = 0; n < kProxyEvents.length; n++) {
- stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
- }
-
- // when we try to consume some more bytes, simply unpause the
- // underlying stream.
- this._read = function (n) {
- debug('wrapped _read', n);
- if (paused) {
- paused = false;
- stream.resume();
- }
- };
-
- return this;
-};
-
-Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
- // making it explicit this property is not enumerable
- // because otherwise some prototype manipulation in
- // userland will fail
- enumerable: false,
- get: function () {
- return this._readableState.highWaterMark;
- }
-});
-
-// exposed for testing purposes only.
-Readable._fromList = fromList;
-
-// Pluck off n bytes from an array of buffers.
-// Length is the combined lengths of all the buffers in the list.
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function fromList(n, state) {
- // nothing buffered
- if (state.length === 0) return null;
-
- var ret;
- if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
- // read it all, truncate the list
- if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
- state.buffer.clear();
- } else {
- // read part of list
- ret = fromListPartial(n, state.buffer, state.decoder);
- }
-
- return ret;
-}
-
-// Extracts only enough buffered data to satisfy the amount requested.
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function fromListPartial(n, list, hasStrings) {
- var ret;
- if (n < list.head.data.length) {
- // slice is the same for buffers and strings
- ret = list.head.data.slice(0, n);
- list.head.data = list.head.data.slice(n);
- } else if (n === list.head.data.length) {
- // first chunk is a perfect match
- ret = list.shift();
- } else {
- // result spans more than one buffer
- ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
- }
- return ret;
-}
-
-// Copies a specified amount of characters from the list of buffered data
-// chunks.
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function copyFromBufferString(n, list) {
- var p = list.head;
- var c = 1;
- var ret = p.data;
- n -= ret.length;
- while (p = p.next) {
- var str = p.data;
- var nb = n > str.length ? str.length : n;
- if (nb === str.length) ret += str;else ret += str.slice(0, n);
- n -= nb;
- if (n === 0) {
- if (nb === str.length) {
- ++c;
- if (p.next) list.head = p.next;else list.head = list.tail = null;
- } else {
- list.head = p;
- p.data = str.slice(nb);
- }
- break;
- }
- ++c;
- }
- list.length -= c;
- return ret;
-}
-
-// Copies a specified amount of bytes from the list of buffered data chunks.
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function copyFromBuffer(n, list) {
- var ret = Buffer.allocUnsafe(n);
- var p = list.head;
- var c = 1;
- p.data.copy(ret);
- n -= p.data.length;
- while (p = p.next) {
- var buf = p.data;
- var nb = n > buf.length ? buf.length : n;
- buf.copy(ret, ret.length - n, 0, nb);
- n -= nb;
- if (n === 0) {
- if (nb === buf.length) {
- ++c;
- if (p.next) list.head = p.next;else list.head = list.tail = null;
- } else {
- list.head = p;
- p.data = buf.slice(nb);
- }
- break;
- }
- ++c;
- }
- list.length -= c;
- return ret;
-}
-
-function endReadable(stream) {
- var state = stream._readableState;
-
- // If we get here before consuming all the bytes, then that is a
- // bug in node. Should never happen.
- if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
-
- if (!state.endEmitted) {
- state.ended = true;
- pna.nextTick(endReadableNT, state, stream);
- }
-}
-
-function endReadableNT(state, stream) {
- // Check that we didn't get one last unshift.
- if (!state.endEmitted && state.length === 0) {
- state.endEmitted = true;
- stream.readable = false;
- stream.emit('end');
- }
-}
-
-function indexOf(xs, x) {
- for (var i = 0, l = xs.length; i < l; i++) {
- if (xs[i] === x) return i;
- }
- return -1;
-}
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./_stream_duplex":20,"./internal/streams/BufferList":25,"./internal/streams/destroy":26,"./internal/streams/stream":27,"_process":18,"core-util-is":8,"events":10,"inherits":13,"isarray":15,"process-nextick-args":17,"safe-buffer":34,"string_decoder/":28,"util":4}],23:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// a transform stream is a readable/writable stream where you do
-// something with the data. Sometimes it's called a "filter",
-// but that's not a great name for it, since that implies a thing where
-// some bits pass through, and others are simply ignored. (That would
-// be a valid example of a transform, of course.)
-//
-// While the output is causally related to the input, it's not a
-// necessarily symmetric or synchronous transformation. For example,
-// a zlib stream might take multiple plain-text writes(), and then
-// emit a single compressed chunk some time in the future.
-//
-// Here's how this works:
-//
-// The Transform stream has all the aspects of the readable and writable
-// stream classes. When you write(chunk), that calls _write(chunk,cb)
-// internally, and returns false if there's a lot of pending writes
-// buffered up. When you call read(), that calls _read(n) until
-// there's enough pending readable data buffered up.
-//
-// In a transform stream, the written data is placed in a buffer. When
-// _read(n) is called, it transforms the queued up data, calling the
-// buffered _write cb's as it consumes chunks. If consuming a single
-// written chunk would result in multiple output chunks, then the first
-// outputted bit calls the readcb, and subsequent chunks just go into
-// the read buffer, and will cause it to emit 'readable' if necessary.
-//
-// This way, back-pressure is actually determined by the reading side,
-// since _read has to be called to start processing a new chunk. However,
-// a pathological inflate type of transform can cause excessive buffering
-// here. For example, imagine a stream where every byte of input is
-// interpreted as an integer from 0-255, and then results in that many
-// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in
-// 1kb of data being output. In this case, you could write a very small
-// amount of input, and end up with a very large amount of output. In
-// such a pathological inflating mechanism, there'd be no way to tell
-// the system to stop doing the transform. A single 4MB write could
-// cause the system to run out of memory.
-//
-// However, even in such a pathological case, only a single written chunk
-// would be consumed, and then the rest would wait (un-transformed) until
-// the results of the previous transformed chunk were consumed.
-
-'use strict';
-
-module.exports = Transform;
-
-var Duplex = require('./_stream_duplex');
-
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
-
-util.inherits(Transform, Duplex);
-
-function afterTransform(er, data) {
- var ts = this._transformState;
- ts.transforming = false;
-
- var cb = ts.writecb;
-
- if (!cb) {
- return this.emit('error', new Error('write callback called multiple times'));
- }
-
- ts.writechunk = null;
- ts.writecb = null;
-
- if (data != null) // single equals check for both `null` and `undefined`
- this.push(data);
-
- cb(er);
-
- var rs = this._readableState;
- rs.reading = false;
- if (rs.needReadable || rs.length < rs.highWaterMark) {
- this._read(rs.highWaterMark);
- }
-}
-
-function Transform(options) {
- if (!(this instanceof Transform)) return new Transform(options);
-
- Duplex.call(this, options);
-
- this._transformState = {
- afterTransform: afterTransform.bind(this),
- needTransform: false,
- transforming: false,
- writecb: null,
- writechunk: null,
- writeencoding: null
- };
-
- // start out asking for a readable event once data is transformed.
- this._readableState.needReadable = true;
-
- // we have implemented the _read method, and done the other things
- // that Readable wants before the first _read call, so unset the
- // sync guard flag.
- this._readableState.sync = false;
-
- if (options) {
- if (typeof options.transform === 'function') this._transform = options.transform;
-
- if (typeof options.flush === 'function') this._flush = options.flush;
- }
-
- // When the writable side finishes, then flush out anything remaining.
- this.on('prefinish', prefinish);
-}
-
-function prefinish() {
- var _this = this;
-
- if (typeof this._flush === 'function') {
- this._flush(function (er, data) {
- done(_this, er, data);
- });
- } else {
- done(this, null, null);
- }
-}
-
-Transform.prototype.push = function (chunk, encoding) {
- this._transformState.needTransform = false;
- return Duplex.prototype.push.call(this, chunk, encoding);
-};
-
-// This is the part where you do stuff!
-// override this function in implementation classes.
-// 'chunk' is an input chunk.
-//
-// Call `push(newChunk)` to pass along transformed output
-// to the readable side. You may call 'push' zero or more times.
-//
-// Call `cb(err)` when you are done with this chunk. If you pass
-// an error, then that'll put the hurt on the whole operation. If you
-// never call cb(), then you'll never get another chunk.
-Transform.prototype._transform = function (chunk, encoding, cb) {
- throw new Error('_transform() is not implemented');
-};
-
-Transform.prototype._write = function (chunk, encoding, cb) {
- var ts = this._transformState;
- ts.writecb = cb;
- ts.writechunk = chunk;
- ts.writeencoding = encoding;
- if (!ts.transforming) {
- var rs = this._readableState;
- if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
- }
-};
-
-// Doesn't matter what the args are here.
-// _transform does all the work.
-// That we got here means that the readable side wants more data.
-Transform.prototype._read = function (n) {
- var ts = this._transformState;
-
- if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
- ts.transforming = true;
- this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
- } else {
- // mark that we need a transform, so that any data that comes in
- // will get processed, now that we've asked for it.
- ts.needTransform = true;
- }
-};
-
-Transform.prototype._destroy = function (err, cb) {
- var _this2 = this;
-
- Duplex.prototype._destroy.call(this, err, function (err2) {
- cb(err2);
- _this2.emit('close');
- });
-};
-
-function done(stream, er, data) {
- if (er) return stream.emit('error', er);
-
- if (data != null) // single equals check for both `null` and `undefined`
- stream.push(data);
-
- // if there's nothing in the write buffer, then that means
- // that nothing more will ever be provided
- if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');
-
- if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');
-
- return stream.push(null);
-}
-},{"./_stream_duplex":20,"core-util-is":8,"inherits":13}],24:[function(require,module,exports){
-(function (process,global,setImmediate){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// A bit simpler than readable streams.
-// Implement an async ._write(chunk, encoding, cb), and it'll handle all
-// the drain event emission and buffering.
-
-'use strict';
-
-/*<replacement>*/
-
-var pna = require('process-nextick-args');
-/*</replacement>*/
-
-module.exports = Writable;
-
-/* <replacement> */
-function WriteReq(chunk, encoding, cb) {
- this.chunk = chunk;
- this.encoding = encoding;
- this.callback = cb;
- this.next = null;
-}
-
-// It seems a linked list but it is not
-// there will be only 2 of these for each stream
-function CorkedRequest(state) {
- var _this = this;
-
- this.next = null;
- this.entry = null;
- this.finish = function () {
- onCorkedFinish(_this, state);
- };
-}
-/* </replacement> */
-
-/*<replacement>*/
-var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;
-/*</replacement>*/
-
-/*<replacement>*/
-var Duplex;
-/*</replacement>*/
-
-Writable.WritableState = WritableState;
-
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
-
-/*<replacement>*/
-var internalUtil = {
- deprecate: require('util-deprecate')
-};
-/*</replacement>*/
-
-/*<replacement>*/
-var Stream = require('./internal/streams/stream');
-/*</replacement>*/
-
-/*<replacement>*/
-
-var Buffer = require('safe-buffer').Buffer;
-var OurUint8Array = global.Uint8Array || function () {};
-function _uint8ArrayToBuffer(chunk) {
- return Buffer.from(chunk);
-}
-function _isUint8Array(obj) {
- return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
-}
-
-/*</replacement>*/
-
-var destroyImpl = require('./internal/streams/destroy');
-
-util.inherits(Writable, Stream);
-
-function nop() {}
-
-function WritableState(options, stream) {
- Duplex = Duplex || require('./_stream_duplex');
-
- options = options || {};
-
- // Duplex streams are both readable and writable, but share
- // the same options object.
- // However, some cases require setting options to different
- // values for the readable and the writable sides of the duplex stream.
- // These options can be provided separately as readableXXX and writableXXX.
- var isDuplex = stream instanceof Duplex;
-
- // object stream flag to indicate whether or not this stream
- // contains buffers or objects.
- this.objectMode = !!options.objectMode;
-
- if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
-
- // the point at which write() starts returning false
- // Note: 0 is a valid value, means that we always return false if
- // the entire buffer is not flushed immediately on write()
- var hwm = options.highWaterMark;
- var writableHwm = options.writableHighWaterMark;
- var defaultHwm = this.objectMode ? 16 : 16 * 1024;
-
- if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;
-
- // cast to ints.
- this.highWaterMark = Math.floor(this.highWaterMark);
-
- // if _final has been called
- this.finalCalled = false;
-
- // drain event flag.
- this.needDrain = false;
- // at the start of calling end()
- this.ending = false;
- // when end() has been called, and returned
- this.ended = false;
- // when 'finish' is emitted
- this.finished = false;
-
- // has it been destroyed
- this.destroyed = false;
-
- // should we decode strings into buffers before passing to _write?
- // this is here so that some node-core streams can optimize string
- // handling at a lower level.
- var noDecode = options.decodeStrings === false;
- this.decodeStrings = !noDecode;
-
- // Crypto is kind of old and crusty. Historically, its default string
- // encoding is 'binary' so we have to make this configurable.
- // Everything else in the universe uses 'utf8', though.
- this.defaultEncoding = options.defaultEncoding || 'utf8';
-
- // not an actual buffer we keep track of, but a measurement
- // of how much we're waiting to get pushed to some underlying
- // socket or file.
- this.length = 0;
-
- // a flag to see when we're in the middle of a write.
- this.writing = false;
-
- // when true all writes will be buffered until .uncork() call
- this.corked = 0;
-
- // a flag to be able to tell if the onwrite cb is called immediately,
- // or on a later tick. We set this to true at first, because any
- // actions that shouldn't happen until "later" should generally also
- // not happen before the first write call.
- this.sync = true;
-
- // a flag to know if we're processing previously buffered items, which
- // may call the _write() callback in the same tick, so that we don't
- // end up in an overlapped onwrite situation.
- this.bufferProcessing = false;
-
- // the callback that's passed to _write(chunk,cb)
- this.onwrite = function (er) {
- onwrite(stream, er);
- };
-
- // the callback that the user supplies to write(chunk,encoding,cb)
- this.writecb = null;
-
- // the amount that is being written when _write is called.
- this.writelen = 0;
-
- this.bufferedRequest = null;
- this.lastBufferedRequest = null;
-
- // number of pending user-supplied write callbacks
- // this must be 0 before 'finish' can be emitted
- this.pendingcb = 0;
-
- // emit prefinish if the only thing we're waiting for is _write cbs
- // This is relevant for synchronous Transform streams
- this.prefinished = false;
-
- // True if the error was already emitted and should not be thrown again
- this.errorEmitted = false;
-
- // count buffered requests
- this.bufferedRequestCount = 0;
-
- // allocate the first CorkedRequest, there is always
- // one allocated and free to use, and we maintain at most two
- this.corkedRequestsFree = new CorkedRequest(this);
-}
-
-WritableState.prototype.getBuffer = function getBuffer() {
- var current = this.bufferedRequest;
- var out = [];
- while (current) {
- out.push(current);
- current = current.next;
- }
- return out;
-};
-
-(function () {
- try {
- Object.defineProperty(WritableState.prototype, 'buffer', {
- get: internalUtil.deprecate(function () {
- return this.getBuffer();
- }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
- });
- } catch (_) {}
-})();
-
-// Test _writableState for inheritance to account for Duplex streams,
-// whose prototype chain only points to Readable.
-var realHasInstance;
-if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
- realHasInstance = Function.prototype[Symbol.hasInstance];
- Object.defineProperty(Writable, Symbol.hasInstance, {
- value: function (object) {
- if (realHasInstance.call(this, object)) return true;
- if (this !== Writable) return false;
-
- return object && object._writableState instanceof WritableState;
- }
- });
-} else {
- realHasInstance = function (object) {
- return object instanceof this;
- };
-}
-
-function Writable(options) {
- Duplex = Duplex || require('./_stream_duplex');
-
- // Writable ctor is applied to Duplexes, too.
- // `realHasInstance` is necessary because using plain `instanceof`
- // would return false, as no `_writableState` property is attached.
-
- // Trying to use the custom `instanceof` for Writable here will also break the
- // Node.js LazyTransform implementation, which has a non-trivial getter for
- // `_writableState` that would lead to infinite recursion.
- if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
- return new Writable(options);
- }
-
- this._writableState = new WritableState(options, this);
-
- // legacy.
- this.writable = true;
-
- if (options) {
- if (typeof options.write === 'function') this._write = options.write;
-
- if (typeof options.writev === 'function') this._writev = options.writev;
-
- if (typeof options.destroy === 'function') this._destroy = options.destroy;
-
- if (typeof options.final === 'function') this._final = options.final;
- }
-
- Stream.call(this);
-}
-
-// Otherwise people can pipe Writable streams, which is just wrong.
-Writable.prototype.pipe = function () {
- this.emit('error', new Error('Cannot pipe, not readable'));
-};
-
-function writeAfterEnd(stream, cb) {
- var er = new Error('write after end');
- // TODO: defer error events consistently everywhere, not just the cb
- stream.emit('error', er);
- pna.nextTick(cb, er);
-}
-
-// Checks that a user-supplied chunk is valid, especially for the particular
-// mode the stream is in. Currently this means that `null` is never accepted
-// and undefined/non-string values are only allowed in object mode.
-function validChunk(stream, state, chunk, cb) {
- var valid = true;
- var er = false;
-
- if (chunk === null) {
- er = new TypeError('May not write null values to stream');
- } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
- er = new TypeError('Invalid non-string/buffer chunk');
- }
- if (er) {
- stream.emit('error', er);
- pna.nextTick(cb, er);
- valid = false;
- }
- return valid;
-}
-
-Writable.prototype.write = function (chunk, encoding, cb) {
- var state = this._writableState;
- var ret = false;
- var isBuf = !state.objectMode && _isUint8Array(chunk);
-
- if (isBuf && !Buffer.isBuffer(chunk)) {
- chunk = _uint8ArrayToBuffer(chunk);
- }
-
- if (typeof encoding === 'function') {
- cb = encoding;
- encoding = null;
- }
-
- if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
-
- if (typeof cb !== 'function') cb = nop;
-
- if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
- state.pendingcb++;
- ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
- }
-
- return ret;
-};
-
-Writable.prototype.cork = function () {
- var state = this._writableState;
-
- state.corked++;
-};
-
-Writable.prototype.uncork = function () {
- var state = this._writableState;
-
- if (state.corked) {
- state.corked--;
-
- if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
- }
-};
-
-Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
- // node::ParseEncoding() requires lower case.
- if (typeof encoding === 'string') encoding = encoding.toLowerCase();
- if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
- this._writableState.defaultEncoding = encoding;
- return this;
-};
-
-function decodeChunk(state, chunk, encoding) {
- if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
- chunk = Buffer.from(chunk, encoding);
- }
- return chunk;
-}
-
-Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
- // making it explicit this property is not enumerable
- // because otherwise some prototype manipulation in
- // userland will fail
- enumerable: false,
- get: function () {
- return this._writableState.highWaterMark;
- }
-});
-
-// if we're already writing something, then just put this
-// in the queue, and wait our turn. Otherwise, call _write
-// If we return false, then we need a drain event, so set that flag.
-function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
- if (!isBuf) {
- var newChunk = decodeChunk(state, chunk, encoding);
- if (chunk !== newChunk) {
- isBuf = true;
- encoding = 'buffer';
- chunk = newChunk;
- }
- }
- var len = state.objectMode ? 1 : chunk.length;
-
- state.length += len;
-
- var ret = state.length < state.highWaterMark;
- // we must ensure that previous needDrain will not be reset to false.
- if (!ret) state.needDrain = true;
-
- if (state.writing || state.corked) {
- var last = state.lastBufferedRequest;
- state.lastBufferedRequest = {
- chunk: chunk,
- encoding: encoding,
- isBuf: isBuf,
- callback: cb,
- next: null
- };
- if (last) {
- last.next = state.lastBufferedRequest;
- } else {
- state.bufferedRequest = state.lastBufferedRequest;
- }
- state.bufferedRequestCount += 1;
- } else {
- doWrite(stream, state, false, len, chunk, encoding, cb);
- }
-
- return ret;
-}
-
-function doWrite(stream, state, writev, len, chunk, encoding, cb) {
- state.writelen = len;
- state.writecb = cb;
- state.writing = true;
- state.sync = true;
- if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
- state.sync = false;
-}
-
-function onwriteError(stream, state, sync, er, cb) {
- --state.pendingcb;
-
- if (sync) {
- // defer the callback if we are being called synchronously
- // to avoid piling up things on the stack
- pna.nextTick(cb, er);
- // this can emit finish, and it will always happen
- // after error
- pna.nextTick(finishMaybe, stream, state);
- stream._writableState.errorEmitted = true;
- stream.emit('error', er);
- } else {
- // the caller expect this to happen before if
- // it is async
- cb(er);
- stream._writableState.errorEmitted = true;
- stream.emit('error', er);
- // this can emit finish, but finish must
- // always follow error
- finishMaybe(stream, state);
- }
-}
-
-function onwriteStateUpdate(state) {
- state.writing = false;
- state.writecb = null;
- state.length -= state.writelen;
- state.writelen = 0;
-}
-
-function onwrite(stream, er) {
- var state = stream._writableState;
- var sync = state.sync;
- var cb = state.writecb;
-
- onwriteStateUpdate(state);
-
- if (er) onwriteError(stream, state, sync, er, cb);else {
- // Check if we're actually ready to finish, but don't emit yet
- var finished = needFinish(state);
-
- if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
- clearBuffer(stream, state);
- }
-
- if (sync) {
- /*<replacement>*/
- asyncWrite(afterWrite, stream, state, finished, cb);
- /*</replacement>*/
- } else {
- afterWrite(stream, state, finished, cb);
- }
- }
-}
-
-function afterWrite(stream, state, finished, cb) {
- if (!finished) onwriteDrain(stream, state);
- state.pendingcb--;
- cb();
- finishMaybe(stream, state);
-}
-
-// Must force callback to be called on nextTick, so that we don't
-// emit 'drain' before the write() consumer gets the 'false' return
-// value, and has a chance to attach a 'drain' listener.
-function onwriteDrain(stream, state) {
- if (state.length === 0 && state.needDrain) {
- state.needDrain = false;
- stream.emit('drain');
- }
-}
-
-// if there's something in the buffer waiting, then process it
-function clearBuffer(stream, state) {
- state.bufferProcessing = true;
- var entry = state.bufferedRequest;
-
- if (stream._writev && entry && entry.next) {
- // Fast case, write everything using _writev()
- var l = state.bufferedRequestCount;
- var buffer = new Array(l);
- var holder = state.corkedRequestsFree;
- holder.entry = entry;
-
- var count = 0;
- var allBuffers = true;
- while (entry) {
- buffer[count] = entry;
- if (!entry.isBuf) allBuffers = false;
- entry = entry.next;
- count += 1;
- }
- buffer.allBuffers = allBuffers;
-
- doWrite(stream, state, true, state.length, buffer, '', holder.finish);
-
- // doWrite is almost always async, defer these to save a bit of time
- // as the hot path ends with doWrite
- state.pendingcb++;
- state.lastBufferedRequest = null;
- if (holder.next) {
- state.corkedRequestsFree = holder.next;
- holder.next = null;
- } else {
- state.corkedRequestsFree = new CorkedRequest(state);
- }
- state.bufferedRequestCount = 0;
- } else {
- // Slow case, write chunks one-by-one
- while (entry) {
- var chunk = entry.chunk;
- var encoding = entry.encoding;
- var cb = entry.callback;
- var len = state.objectMode ? 1 : chunk.length;
-
- doWrite(stream, state, false, len, chunk, encoding, cb);
- entry = entry.next;
- state.bufferedRequestCount--;
- // if we didn't call the onwrite immediately, then
- // it means that we need to wait until it does.
- // also, that means that the chunk and cb are currently
- // being processed, so move the buffer counter past them.
- if (state.writing) {
- break;
- }
- }
-
- if (entry === null) state.lastBufferedRequest = null;
- }
-
- state.bufferedRequest = entry;
- state.bufferProcessing = false;
-}
-
-Writable.prototype._write = function (chunk, encoding, cb) {
- cb(new Error('_write() is not implemented'));
-};
-
-Writable.prototype._writev = null;
-
-Writable.prototype.end = function (chunk, encoding, cb) {
- var state = this._writableState;
-
- if (typeof chunk === 'function') {
- cb = chunk;
- chunk = null;
- encoding = null;
- } else if (typeof encoding === 'function') {
- cb = encoding;
- encoding = null;
- }
-
- if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
-
- // .end() fully uncorks
- if (state.corked) {
- state.corked = 1;
- this.uncork();
- }
-
- // ignore unnecessary end() calls.
- if (!state.ending && !state.finished) endWritable(this, state, cb);
-};
-
-function needFinish(state) {
- return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
-}
-function callFinal(stream, state) {
- stream._final(function (err) {
- state.pendingcb--;
- if (err) {
- stream.emit('error', err);
- }
- state.prefinished = true;
- stream.emit('prefinish');
- finishMaybe(stream, state);
- });
-}
-function prefinish(stream, state) {
- if (!state.prefinished && !state.finalCalled) {
- if (typeof stream._final === 'function') {
- state.pendingcb++;
- state.finalCalled = true;
- pna.nextTick(callFinal, stream, state);
- } else {
- state.prefinished = true;
- stream.emit('prefinish');
- }
- }
-}
-
-function finishMaybe(stream, state) {
- var need = needFinish(state);
- if (need) {
- prefinish(stream, state);
- if (state.pendingcb === 0) {
- state.finished = true;
- stream.emit('finish');
- }
- }
- return need;
-}
-
-function endWritable(stream, state, cb) {
- state.ending = true;
- finishMaybe(stream, state);
- if (cb) {
- if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);
- }
- state.ended = true;
- stream.writable = false;
-}
-
-function onCorkedFinish(corkReq, state, err) {
- var entry = corkReq.entry;
- corkReq.entry = null;
- while (entry) {
- var cb = entry.callback;
- state.pendingcb--;
- cb(err);
- entry = entry.next;
- }
- if (state.corkedRequestsFree) {
- state.corkedRequestsFree.next = corkReq;
- } else {
- state.corkedRequestsFree = corkReq;
- }
-}
-
-Object.defineProperty(Writable.prototype, 'destroyed', {
- get: function () {
- if (this._writableState === undefined) {
- return false;
- }
- return this._writableState.destroyed;
- },
- set: function (value) {
- // we ignore the value if the stream
- // has not been initialized yet
- if (!this._writableState) {
- return;
- }
-
- // backward compatibility, the user is explicitly
- // managing destroyed
- this._writableState.destroyed = value;
- }
-});
-
-Writable.prototype.destroy = destroyImpl.destroy;
-Writable.prototype._undestroy = destroyImpl.undestroy;
-Writable.prototype._destroy = function (err, cb) {
- this.end();
- cb(err);
-};
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("timers").setImmediate)
-},{"./_stream_duplex":20,"./internal/streams/destroy":26,"./internal/streams/stream":27,"_process":18,"core-util-is":8,"inherits":13,"process-nextick-args":17,"safe-buffer":34,"timers":45,"util-deprecate":46}],25:[function(require,module,exports){
-'use strict';
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-var Buffer = require('safe-buffer').Buffer;
-var util = require('util');
-
-function copyBuffer(src, target, offset) {
- src.copy(target, offset);
-}
-
-module.exports = function () {
- function BufferList() {
- _classCallCheck(this, BufferList);
-
- this.head = null;
- this.tail = null;
- this.length = 0;
- }
-
- BufferList.prototype.push = function push(v) {
- var entry = { data: v, next: null };
- if (this.length > 0) this.tail.next = entry;else this.head = entry;
- this.tail = entry;
- ++this.length;
- };
-
- BufferList.prototype.unshift = function unshift(v) {
- var entry = { data: v, next: this.head };
- if (this.length === 0) this.tail = entry;
- this.head = entry;
- ++this.length;
- };
-
- BufferList.prototype.shift = function shift() {
- if (this.length === 0) return;
- var ret = this.head.data;
- if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
- --this.length;
- return ret;
- };
-
- BufferList.prototype.clear = function clear() {
- this.head = this.tail = null;
- this.length = 0;
- };
-
- BufferList.prototype.join = function join(s) {
- if (this.length === 0) return '';
- var p = this.head;
- var ret = '' + p.data;
- while (p = p.next) {
- ret += s + p.data;
- }return ret;
- };
-
- BufferList.prototype.concat = function concat(n) {
- if (this.length === 0) return Buffer.alloc(0);
- if (this.length === 1) return this.head.data;
- var ret = Buffer.allocUnsafe(n >>> 0);
- var p = this.head;
- var i = 0;
- while (p) {
- copyBuffer(p.data, ret, i);
- i += p.data.length;
- p = p.next;
- }
- return ret;
- };
-
- return BufferList;
-}();
-
-if (util && util.inspect && util.inspect.custom) {
- module.exports.prototype[util.inspect.custom] = function () {
- var obj = util.inspect({ length: this.length });
- return this.constructor.name + ' ' + obj;
- };
-}
-},{"safe-buffer":34,"util":4}],26:[function(require,module,exports){
-'use strict';
-
-/*<replacement>*/
-
-var pna = require('process-nextick-args');
-/*</replacement>*/
-
-// undocumented cb() API, needed for core, not for public API
-function destroy(err, cb) {
- var _this = this;
-
- var readableDestroyed = this._readableState && this._readableState.destroyed;
- var writableDestroyed = this._writableState && this._writableState.destroyed;
-
- if (readableDestroyed || writableDestroyed) {
- if (cb) {
- cb(err);
- } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
- pna.nextTick(emitErrorNT, this, err);
- }
- return this;
- }
-
- // we set destroyed to true before firing error callbacks in order
- // to make it re-entrance safe in case destroy() is called within callbacks
-
- if (this._readableState) {
- this._readableState.destroyed = true;
- }
-
- // if this is a duplex stream mark the writable part as destroyed as well
- if (this._writableState) {
- this._writableState.destroyed = true;
- }
-
- this._destroy(err || null, function (err) {
- if (!cb && err) {
- pna.nextTick(emitErrorNT, _this, err);
- if (_this._writableState) {
- _this._writableState.errorEmitted = true;
- }
- } else if (cb) {
- cb(err);
- }
- });
-
- return this;
-}
-
-function undestroy() {
- if (this._readableState) {
- this._readableState.destroyed = false;
- this._readableState.reading = false;
- this._readableState.ended = false;
- this._readableState.endEmitted = false;
- }
-
- if (this._writableState) {
- this._writableState.destroyed = false;
- this._writableState.ended = false;
- this._writableState.ending = false;
- this._writableState.finished = false;
- this._writableState.errorEmitted = false;
- }
-}
-
-function emitErrorNT(self, err) {
- self.emit('error', err);
-}
-
-module.exports = {
- destroy: destroy,
- undestroy: undestroy
-};
-},{"process-nextick-args":17}],27:[function(require,module,exports){
-module.exports = require('events').EventEmitter;
-
-},{"events":10}],28:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-'use strict';
-
-/*<replacement>*/
-
-var Buffer = require('safe-buffer').Buffer;
-/*</replacement>*/
-
-var isEncoding = Buffer.isEncoding || function (encoding) {
- encoding = '' + encoding;
- switch (encoding && encoding.toLowerCase()) {
- case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
- return true;
- default:
- return false;
- }
-};
-
-function _normalizeEncoding(enc) {
- if (!enc) return 'utf8';
- var retried;
- while (true) {
- switch (enc) {
- case 'utf8':
- case 'utf-8':
- return 'utf8';
- case 'ucs2':
- case 'ucs-2':
- case 'utf16le':
- case 'utf-16le':
- return 'utf16le';
- case 'latin1':
- case 'binary':
- return 'latin1';
- case 'base64':
- case 'ascii':
- case 'hex':
- return enc;
- default:
- if (retried) return; // undefined
- enc = ('' + enc).toLowerCase();
- retried = true;
- }
- }
-};
-
-// Do not cache `Buffer.isEncoding` when checking encoding names as some
-// modules monkey-patch it to support additional encodings
-function normalizeEncoding(enc) {
- var nenc = _normalizeEncoding(enc);
- if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
- return nenc || enc;
-}
-
-// StringDecoder provides an interface for efficiently splitting a series of
-// buffers into a series of JS strings without breaking apart multi-byte
-// characters.
-exports.StringDecoder = StringDecoder;
-function StringDecoder(encoding) {
- this.encoding = normalizeEncoding(encoding);
- var nb;
- switch (this.encoding) {
- case 'utf16le':
- this.text = utf16Text;
- this.end = utf16End;
- nb = 4;
- break;
- case 'utf8':
- this.fillLast = utf8FillLast;
- nb = 4;
- break;
- case 'base64':
- this.text = base64Text;
- this.end = base64End;
- nb = 3;
- break;
- default:
- this.write = simpleWrite;
- this.end = simpleEnd;
- return;
- }
- this.lastNeed = 0;
- this.lastTotal = 0;
- this.lastChar = Buffer.allocUnsafe(nb);
-}
-
-StringDecoder.prototype.write = function (buf) {
- if (buf.length === 0) return '';
- var r;
- var i;
- if (this.lastNeed) {
- r = this.fillLast(buf);
- if (r === undefined) return '';
- i = this.lastNeed;
- this.lastNeed = 0;
- } else {
- i = 0;
- }
- if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
- return r || '';
-};
-
-StringDecoder.prototype.end = utf8End;
-
-// Returns only complete characters in a Buffer
-StringDecoder.prototype.text = utf8Text;
-
-// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
-StringDecoder.prototype.fillLast = function (buf) {
- if (this.lastNeed <= buf.length) {
- buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
- return this.lastChar.toString(this.encoding, 0, this.lastTotal);
- }
- buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
- this.lastNeed -= buf.length;
-};
-
-// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
-// continuation byte. If an invalid byte is detected, -2 is returned.
-function utf8CheckByte(byte) {
- if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
- return byte >> 6 === 0x02 ? -1 : -2;
-}
-
-// Checks at most 3 bytes at the end of a Buffer in order to detect an
-// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
-// needed to complete the UTF-8 character (if applicable) are returned.
-function utf8CheckIncomplete(self, buf, i) {
- var j = buf.length - 1;
- if (j < i) return 0;
- var nb = utf8CheckByte(buf[j]);
- if (nb >= 0) {
- if (nb > 0) self.lastNeed = nb - 1;
- return nb;
- }
- if (--j < i || nb === -2) return 0;
- nb = utf8CheckByte(buf[j]);
- if (nb >= 0) {
- if (nb > 0) self.lastNeed = nb - 2;
- return nb;
- }
- if (--j < i || nb === -2) return 0;
- nb = utf8CheckByte(buf[j]);
- if (nb >= 0) {
- if (nb > 0) {
- if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
- }
- return nb;
- }
- return 0;
-}
-
-// Validates as many continuation bytes for a multi-byte UTF-8 character as
-// needed or are available. If we see a non-continuation byte where we expect
-// one, we "replace" the validated continuation bytes we've seen so far with
-// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
-// behavior. The continuation byte check is included three times in the case
-// where all of the continuation bytes for a character exist in the same buffer.
-// It is also done this way as a slight performance increase instead of using a
-// loop.
-function utf8CheckExtraBytes(self, buf, p) {
- if ((buf[0] & 0xC0) !== 0x80) {
- self.lastNeed = 0;
- return '\ufffd';
- }
- if (self.lastNeed > 1 && buf.length > 1) {
- if ((buf[1] & 0xC0) !== 0x80) {
- self.lastNeed = 1;
- return '\ufffd';
- }
- if (self.lastNeed > 2 && buf.length > 2) {
- if ((buf[2] & 0xC0) !== 0x80) {
- self.lastNeed = 2;
- return '\ufffd';
- }
- }
- }
-}
-
-// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
-function utf8FillLast(buf) {
- var p = this.lastTotal - this.lastNeed;
- var r = utf8CheckExtraBytes(this, buf, p);
- if (r !== undefined) return r;
- if (this.lastNeed <= buf.length) {
- buf.copy(this.lastChar, p, 0, this.lastNeed);
- return this.lastChar.toString(this.encoding, 0, this.lastTotal);
- }
- buf.copy(this.lastChar, p, 0, buf.length);
- this.lastNeed -= buf.length;
-}
-
-// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
-// partial character, the character's bytes are buffered until the required
-// number of bytes are available.
-function utf8Text(buf, i) {
- var total = utf8CheckIncomplete(this, buf, i);
- if (!this.lastNeed) return buf.toString('utf8', i);
- this.lastTotal = total;
- var end = buf.length - (total - this.lastNeed);
- buf.copy(this.lastChar, 0, end);
- return buf.toString('utf8', i, end);
-}
-
-// For UTF-8, a replacement character is added when ending on a partial
-// character.
-function utf8End(buf) {
- var r = buf && buf.length ? this.write(buf) : '';
- if (this.lastNeed) return r + '\ufffd';
- return r;
-}
-
-// UTF-16LE typically needs two bytes per character, but even if we have an even
-// number of bytes available, we need to check if we end on a leading/high
-// surrogate. In that case, we need to wait for the next two bytes in order to
-// decode the last character properly.
-function utf16Text(buf, i) {
- if ((buf.length - i) % 2 === 0) {
- var r = buf.toString('utf16le', i);
- if (r) {
- var c = r.charCodeAt(r.length - 1);
- if (c >= 0xD800 && c <= 0xDBFF) {
- this.lastNeed = 2;
- this.lastTotal = 4;
- this.lastChar[0] = buf[buf.length - 2];
- this.lastChar[1] = buf[buf.length - 1];
- return r.slice(0, -1);
- }
- }
- return r;
- }
- this.lastNeed = 1;
- this.lastTotal = 2;
- this.lastChar[0] = buf[buf.length - 1];
- return buf.toString('utf16le', i, buf.length - 1);
-}
-
-// For UTF-16LE we do not explicitly append special replacement characters if we
-// end on a partial character, we simply let v8 handle that.
-function utf16End(buf) {
- var r = buf && buf.length ? this.write(buf) : '';
- if (this.lastNeed) {
- var end = this.lastTotal - this.lastNeed;
- return r + this.lastChar.toString('utf16le', 0, end);
- }
- return r;
-}
-
-function base64Text(buf, i) {
- var n = (buf.length - i) % 3;
- if (n === 0) return buf.toString('base64', i);
- this.lastNeed = 3 - n;
- this.lastTotal = 3;
- if (n === 1) {
- this.lastChar[0] = buf[buf.length - 1];
- } else {
- this.lastChar[0] = buf[buf.length - 2];
- this.lastChar[1] = buf[buf.length - 1];
- }
- return buf.toString('base64', i, buf.length - n);
-}
-
-function base64End(buf) {
- var r = buf && buf.length ? this.write(buf) : '';
- if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
- return r;
-}
-
-// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
-function simpleWrite(buf) {
- return buf.toString(this.encoding);
-}
-
-function simpleEnd(buf) {
- return buf && buf.length ? this.write(buf) : '';
-}
-},{"safe-buffer":34}],29:[function(require,module,exports){
-module.exports = require('./readable').PassThrough
-
-},{"./readable":30}],30:[function(require,module,exports){
-exports = module.exports = require('./lib/_stream_readable.js');
-exports.Stream = exports;
-exports.Readable = exports;
-exports.Writable = require('./lib/_stream_writable.js');
-exports.Duplex = require('./lib/_stream_duplex.js');
-exports.Transform = require('./lib/_stream_transform.js');
-exports.PassThrough = require('./lib/_stream_passthrough.js');
-
-},{"./lib/_stream_duplex.js":20,"./lib/_stream_passthrough.js":21,"./lib/_stream_readable.js":22,"./lib/_stream_transform.js":23,"./lib/_stream_writable.js":24}],31:[function(require,module,exports){
-module.exports = require('./readable').Transform
-
-},{"./readable":30}],32:[function(require,module,exports){
-module.exports = require('./lib/_stream_writable.js');
-
-},{"./lib/_stream_writable.js":24}],33:[function(require,module,exports){
-'use strict'
-var Buffer = require('buffer').Buffer
-var inherits = require('inherits')
-var HashBase = require('hash-base')
-
-var ARRAY16 = new Array(16)
-
-var zl = [
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
- 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
- 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
- 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
- 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
-]
-
-var zr = [
- 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
- 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
- 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
- 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
- 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
-]
-
-var sl = [
- 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
- 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
- 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
- 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
- 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
-]
-
-var sr = [
- 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
- 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
- 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
- 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
- 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
-]
-
-var hl = [0x00000000, 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xa953fd4e]
-var hr = [0x50a28be6, 0x5c4dd124, 0x6d703ef3, 0x7a6d76e9, 0x00000000]
-
-function RIPEMD160 () {
- HashBase.call(this, 64)
-
- // state
- this._a = 0x67452301
- this._b = 0xefcdab89
- this._c = 0x98badcfe
- this._d = 0x10325476
- this._e = 0xc3d2e1f0
-}
-
-inherits(RIPEMD160, HashBase)
-
-RIPEMD160.prototype._update = function () {
- var words = ARRAY16
- for (var j = 0; j < 16; ++j) words[j] = this._block.readInt32LE(j * 4)
-
- var al = this._a | 0
- var bl = this._b | 0
- var cl = this._c | 0
- var dl = this._d | 0
- var el = this._e | 0
-
- var ar = this._a | 0
- var br = this._b | 0
- var cr = this._c | 0
- var dr = this._d | 0
- var er = this._e | 0
-
- // computation
- for (var i = 0; i < 80; i += 1) {
- var tl
- var tr
- if (i < 16) {
- tl = fn1(al, bl, cl, dl, el, words[zl[i]], hl[0], sl[i])
- tr = fn5(ar, br, cr, dr, er, words[zr[i]], hr[0], sr[i])
- } else if (i < 32) {
- tl = fn2(al, bl, cl, dl, el, words[zl[i]], hl[1], sl[i])
- tr = fn4(ar, br, cr, dr, er, words[zr[i]], hr[1], sr[i])
- } else if (i < 48) {
- tl = fn3(al, bl, cl, dl, el, words[zl[i]], hl[2], sl[i])
- tr = fn3(ar, br, cr, dr, er, words[zr[i]], hr[2], sr[i])
- } else if (i < 64) {
- tl = fn4(al, bl, cl, dl, el, words[zl[i]], hl[3], sl[i])
- tr = fn2(ar, br, cr, dr, er, words[zr[i]], hr[3], sr[i])
- } else { // if (i<80) {
- tl = fn5(al, bl, cl, dl, el, words[zl[i]], hl[4], sl[i])
- tr = fn1(ar, br, cr, dr, er, words[zr[i]], hr[4], sr[i])
- }
-
- al = el
- el = dl
- dl = rotl(cl, 10)
- cl = bl
- bl = tl
-
- ar = er
- er = dr
- dr = rotl(cr, 10)
- cr = br
- br = tr
- }
-
- // update state
- var t = (this._b + cl + dr) | 0
- this._b = (this._c + dl + er) | 0
- this._c = (this._d + el + ar) | 0
- this._d = (this._e + al + br) | 0
- this._e = (this._a + bl + cr) | 0
- this._a = t
-}
-
-RIPEMD160.prototype._digest = function () {
- // create padding and handle blocks
- this._block[this._blockOffset++] = 0x80
- if (this._blockOffset > 56) {
- this._block.fill(0, this._blockOffset, 64)
- this._update()
- this._blockOffset = 0
- }
-
- this._block.fill(0, this._blockOffset, 56)
- this._block.writeUInt32LE(this._length[0], 56)
- this._block.writeUInt32LE(this._length[1], 60)
- this._update()
-
- // produce result
- var buffer = Buffer.alloc ? Buffer.alloc(20) : new Buffer(20)
- buffer.writeInt32LE(this._a, 0)
- buffer.writeInt32LE(this._b, 4)
- buffer.writeInt32LE(this._c, 8)
- buffer.writeInt32LE(this._d, 12)
- buffer.writeInt32LE(this._e, 16)
- return buffer
-}
-
-function rotl (x, n) {
- return (x << n) | (x >>> (32 - n))
-}
-
-function fn1 (a, b, c, d, e, m, k, s) {
- return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + e) | 0
-}
-
-function fn2 (a, b, c, d, e, m, k, s) {
- return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + e) | 0
-}
-
-function fn3 (a, b, c, d, e, m, k, s) {
- return (rotl((a + ((b | (~c)) ^ d) + m + k) | 0, s) + e) | 0
-}
-
-function fn4 (a, b, c, d, e, m, k, s) {
- return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + e) | 0
-}
-
-function fn5 (a, b, c, d, e, m, k, s) {
- return (rotl((a + (b ^ (c | (~d))) + m + k) | 0, s) + e) | 0
-}
-
-module.exports = RIPEMD160
-
-},{"buffer":6,"hash-base":11,"inherits":13}],34:[function(require,module,exports){
-/* eslint-disable node/no-deprecated-api */
-var buffer = require('buffer')
-var Buffer = buffer.Buffer
-
-// alternative to using Object.keys for old browsers
-function copyProps (src, dst) {
- for (var key in src) {
- dst[key] = src[key]
- }
-}
-if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
- module.exports = buffer
-} else {
- // Copy properties from require('buffer')
- copyProps(buffer, exports)
- exports.Buffer = SafeBuffer
-}
-
-function SafeBuffer (arg, encodingOrOffset, length) {
- return Buffer(arg, encodingOrOffset, length)
-}
-
-// Copy static methods from Buffer
-copyProps(Buffer, SafeBuffer)
-
-SafeBuffer.from = function (arg, encodingOrOffset, length) {
- if (typeof arg === 'number') {
- throw new TypeError('Argument must not be a number')
- }
- return Buffer(arg, encodingOrOffset, length)
-}
-
-SafeBuffer.alloc = function (size, fill, encoding) {
- if (typeof size !== 'number') {
- throw new TypeError('Argument must be a number')
- }
- var buf = Buffer(size)
- if (fill !== undefined) {
- if (typeof encoding === 'string') {
- buf.fill(fill, encoding)
- } else {
- buf.fill(fill)
- }
- } else {
- buf.fill(0)
- }
- return buf
-}
-
-SafeBuffer.allocUnsafe = function (size) {
- if (typeof size !== 'number') {
- throw new TypeError('Argument must be a number')
- }
- return Buffer(size)
-}
-
-SafeBuffer.allocUnsafeSlow = function (size) {
- if (typeof size !== 'number') {
- throw new TypeError('Argument must be a number')
- }
- return buffer.SlowBuffer(size)
-}
-
-},{"buffer":6}],35:[function(require,module,exports){
-var Buffer = require('safe-buffer').Buffer
-
-// prototype class for hash functions
-function Hash (blockSize, finalSize) {
- this._block = Buffer.alloc(blockSize)
- this._finalSize = finalSize
- this._blockSize = blockSize
- this._len = 0
-}
-
-Hash.prototype.update = function (data, enc) {
- if (typeof data === 'string') {
- enc = enc || 'utf8'
- data = Buffer.from(data, enc)
- }
-
- var block = this._block
- var blockSize = this._blockSize
- var length = data.length
- var accum = this._len
-
- for (var offset = 0; offset < length;) {
- var assigned = accum % blockSize
- var remainder = Math.min(length - offset, blockSize - assigned)
-
- for (var i = 0; i < remainder; i++) {
- block[assigned + i] = data[offset + i]
- }
-
- accum += remainder
- offset += remainder
-
- if ((accum % blockSize) === 0) {
- this._update(block)
- }
- }
-
- this._len += length
- return this
-}
-
-Hash.prototype.digest = function (enc) {
- var rem = this._len % this._blockSize
-
- this._block[rem] = 0x80
-
- // zero (rem + 1) trailing bits, where (rem + 1) is the smallest
- // non-negative solution to the equation (length + 1 + (rem + 1)) === finalSize mod blockSize
- this._block.fill(0, rem + 1)
-
- if (rem >= this._finalSize) {
- this._update(this._block)
- this._block.fill(0)
- }
-
- var bits = this._len * 8
-
- // uint32
- if (bits <= 0xffffffff) {
- this._block.writeUInt32BE(bits, this._blockSize - 4)
-
- // uint64
- } else {
- var lowBits = (bits & 0xffffffff) >>> 0
- var highBits = (bits - lowBits) / 0x100000000
-
- this._block.writeUInt32BE(highBits, this._blockSize - 8)
- this._block.writeUInt32BE(lowBits, this._blockSize - 4)
- }
-
- this._update(this._block)
- var hash = this._hash()
-
- return enc ? hash.toString(enc) : hash
-}
-
-Hash.prototype._update = function () {
- throw new Error('_update must be implemented by subclass')
-}
-
-module.exports = Hash
-
-},{"safe-buffer":34}],36:[function(require,module,exports){
-var exports = module.exports = function SHA (algorithm) {
- algorithm = algorithm.toLowerCase()
-
- var Algorithm = exports[algorithm]
- if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')
-
- return new Algorithm()
-}
-
-exports.sha = require('./sha')
-exports.sha1 = require('./sha1')
-exports.sha224 = require('./sha224')
-exports.sha256 = require('./sha256')
-exports.sha384 = require('./sha384')
-exports.sha512 = require('./sha512')
-
-},{"./sha":37,"./sha1":38,"./sha224":39,"./sha256":40,"./sha384":41,"./sha512":42}],37:[function(require,module,exports){
-/*
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined
- * in FIPS PUB 180-1
- * This source code is derived from sha1.js of the same repository.
- * The difference between SHA-0 and SHA-1 is just a bitwise rotate left
- * operation was added.
- */
-
-var inherits = require('inherits')
-var Hash = require('./hash')
-var Buffer = require('safe-buffer').Buffer
-
-var K = [
- 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
-]
-
-var W = new Array(80)
-
-function Sha () {
- this.init()
- this._w = W
-
- Hash.call(this, 64, 56)
-}
-
-inherits(Sha, Hash)
-
-Sha.prototype.init = function () {
- this._a = 0x67452301
- this._b = 0xefcdab89
- this._c = 0x98badcfe
- this._d = 0x10325476
- this._e = 0xc3d2e1f0
-
- return this
-}
-
-function rotl5 (num) {
- return (num << 5) | (num >>> 27)
-}
-
-function rotl30 (num) {
- return (num << 30) | (num >>> 2)
-}
-
-function ft (s, b, c, d) {
- if (s === 0) return (b & c) | ((~b) & d)
- if (s === 2) return (b & c) | (b & d) | (c & d)
- return b ^ c ^ d
-}
-
-Sha.prototype._update = function (M) {
- var W = this._w
-
- var a = this._a | 0
- var b = this._b | 0
- var c = this._c | 0
- var d = this._d | 0
- var e = this._e | 0
-
- for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
- for (; i < 80; ++i) W[i] = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16]
-
- for (var j = 0; j < 80; ++j) {
- var s = ~~(j / 20)
- var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
-
- e = d
- d = c
- c = rotl30(b)
- b = a
- a = t
- }
-
- this._a = (a + this._a) | 0
- this._b = (b + this._b) | 0
- this._c = (c + this._c) | 0
- this._d = (d + this._d) | 0
- this._e = (e + this._e) | 0
-}
-
-Sha.prototype._hash = function () {
- var H = Buffer.allocUnsafe(20)
-
- H.writeInt32BE(this._a | 0, 0)
- H.writeInt32BE(this._b | 0, 4)
- H.writeInt32BE(this._c | 0, 8)
- H.writeInt32BE(this._d | 0, 12)
- H.writeInt32BE(this._e | 0, 16)
-
- return H
-}
-
-module.exports = Sha
-
-},{"./hash":35,"inherits":13,"safe-buffer":34}],38:[function(require,module,exports){
-/*
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
- * in FIPS PUB 180-1
- * Version 2.1a Copyright Paul Johnston 2000 - 2002.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- * Distributed under the BSD License
- * See http://pajhome.org.uk/crypt/md5 for details.
- */
-
-var inherits = require('inherits')
-var Hash = require('./hash')
-var Buffer = require('safe-buffer').Buffer
-
-var K = [
- 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
-]
-
-var W = new Array(80)
-
-function Sha1 () {
- this.init()
- this._w = W
-
- Hash.call(this, 64, 56)
-}
-
-inherits(Sha1, Hash)
-
-Sha1.prototype.init = function () {
- this._a = 0x67452301
- this._b = 0xefcdab89
- this._c = 0x98badcfe
- this._d = 0x10325476
- this._e = 0xc3d2e1f0
-
- return this
-}
-
-function rotl1 (num) {
- return (num << 1) | (num >>> 31)
-}
-
-function rotl5 (num) {
- return (num << 5) | (num >>> 27)
-}
-
-function rotl30 (num) {
- return (num << 30) | (num >>> 2)
-}
-
-function ft (s, b, c, d) {
- if (s === 0) return (b & c) | ((~b) & d)
- if (s === 2) return (b & c) | (b & d) | (c & d)
- return b ^ c ^ d
-}
-
-Sha1.prototype._update = function (M) {
- var W = this._w
-
- var a = this._a | 0
- var b = this._b | 0
- var c = this._c | 0
- var d = this._d | 0
- var e = this._e | 0
-
- for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
- for (; i < 80; ++i) W[i] = rotl1(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16])
-
- for (var j = 0; j < 80; ++j) {
- var s = ~~(j / 20)
- var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
-
- e = d
- d = c
- c = rotl30(b)
- b = a
- a = t
- }
-
- this._a = (a + this._a) | 0
- this._b = (b + this._b) | 0
- this._c = (c + this._c) | 0
- this._d = (d + this._d) | 0
- this._e = (e + this._e) | 0
-}
-
-Sha1.prototype._hash = function () {
- var H = Buffer.allocUnsafe(20)
-
- H.writeInt32BE(this._a | 0, 0)
- H.writeInt32BE(this._b | 0, 4)
- H.writeInt32BE(this._c | 0, 8)
- H.writeInt32BE(this._d | 0, 12)
- H.writeInt32BE(this._e | 0, 16)
-
- return H
-}
-
-module.exports = Sha1
-
-},{"./hash":35,"inherits":13,"safe-buffer":34}],39:[function(require,module,exports){
-/**
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
- * in FIPS 180-2
- * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- *
- */
-
-var inherits = require('inherits')
-var Sha256 = require('./sha256')
-var Hash = require('./hash')
-var Buffer = require('safe-buffer').Buffer
-
-var W = new Array(64)
-
-function Sha224 () {
- this.init()
-
- this._w = W // new Array(64)
-
- Hash.call(this, 64, 56)
-}
-
-inherits(Sha224, Sha256)
-
-Sha224.prototype.init = function () {
- this._a = 0xc1059ed8
- this._b = 0x367cd507
- this._c = 0x3070dd17
- this._d = 0xf70e5939
- this._e = 0xffc00b31
- this._f = 0x68581511
- this._g = 0x64f98fa7
- this._h = 0xbefa4fa4
-
- return this
-}
-
-Sha224.prototype._hash = function () {
- var H = Buffer.allocUnsafe(28)
-
- H.writeInt32BE(this._a, 0)
- H.writeInt32BE(this._b, 4)
- H.writeInt32BE(this._c, 8)
- H.writeInt32BE(this._d, 12)
- H.writeInt32BE(this._e, 16)
- H.writeInt32BE(this._f, 20)
- H.writeInt32BE(this._g, 24)
-
- return H
-}
-
-module.exports = Sha224
-
-},{"./hash":35,"./sha256":40,"inherits":13,"safe-buffer":34}],40:[function(require,module,exports){
-/**
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
- * in FIPS 180-2
- * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- *
- */
-
-var inherits = require('inherits')
-var Hash = require('./hash')
-var Buffer = require('safe-buffer').Buffer
-
-var K = [
- 0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
- 0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
- 0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
- 0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
- 0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
- 0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
- 0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
- 0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
- 0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
- 0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
- 0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
- 0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
- 0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
- 0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
- 0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
- 0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
-]
-
-var W = new Array(64)
-
-function Sha256 () {
- this.init()
-
- this._w = W // new Array(64)
-
- Hash.call(this, 64, 56)
-}
-
-inherits(Sha256, Hash)
-
-Sha256.prototype.init = function () {
- this._a = 0x6a09e667
- this._b = 0xbb67ae85
- this._c = 0x3c6ef372
- this._d = 0xa54ff53a
- this._e = 0x510e527f
- this._f = 0x9b05688c
- this._g = 0x1f83d9ab
- this._h = 0x5be0cd19
-
- return this
-}
-
-function ch (x, y, z) {
- return z ^ (x & (y ^ z))
-}
-
-function maj (x, y, z) {
- return (x & y) | (z & (x | y))
-}
-
-function sigma0 (x) {
- return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10)
-}
-
-function sigma1 (x) {
- return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7)
-}
-
-function gamma0 (x) {
- return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3)
-}
-
-function gamma1 (x) {
- return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10)
-}
-
-Sha256.prototype._update = function (M) {
- var W = this._w
-
- var a = this._a | 0
- var b = this._b | 0
- var c = this._c | 0
- var d = this._d | 0
- var e = this._e | 0
- var f = this._f | 0
- var g = this._g | 0
- var h = this._h | 0
-
- for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
- for (; i < 64; ++i) W[i] = (gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16]) | 0
-
- for (var j = 0; j < 64; ++j) {
- var T1 = (h + sigma1(e) + ch(e, f, g) + K[j] + W[j]) | 0
- var T2 = (sigma0(a) + maj(a, b, c)) | 0
-
- h = g
- g = f
- f = e
- e = (d + T1) | 0
- d = c
- c = b
- b = a
- a = (T1 + T2) | 0
- }
-
- this._a = (a + this._a) | 0
- this._b = (b + this._b) | 0
- this._c = (c + this._c) | 0
- this._d = (d + this._d) | 0
- this._e = (e + this._e) | 0
- this._f = (f + this._f) | 0
- this._g = (g + this._g) | 0
- this._h = (h + this._h) | 0
-}
-
-Sha256.prototype._hash = function () {
- var H = Buffer.allocUnsafe(32)
-
- H.writeInt32BE(this._a, 0)
- H.writeInt32BE(this._b, 4)
- H.writeInt32BE(this._c, 8)
- H.writeInt32BE(this._d, 12)
- H.writeInt32BE(this._e, 16)
- H.writeInt32BE(this._f, 20)
- H.writeInt32BE(this._g, 24)
- H.writeInt32BE(this._h, 28)
-
- return H
-}
-
-module.exports = Sha256
-
-},{"./hash":35,"inherits":13,"safe-buffer":34}],41:[function(require,module,exports){
-var inherits = require('inherits')
-var SHA512 = require('./sha512')
-var Hash = require('./hash')
-var Buffer = require('safe-buffer').Buffer
-
-var W = new Array(160)
-
-function Sha384 () {
- this.init()
- this._w = W
-
- Hash.call(this, 128, 112)
-}
-
-inherits(Sha384, SHA512)
-
-Sha384.prototype.init = function () {
- this._ah = 0xcbbb9d5d
- this._bh = 0x629a292a
- this._ch = 0x9159015a
- this._dh = 0x152fecd8
- this._eh = 0x67332667
- this._fh = 0x8eb44a87
- this._gh = 0xdb0c2e0d
- this._hh = 0x47b5481d
-
- this._al = 0xc1059ed8
- this._bl = 0x367cd507
- this._cl = 0x3070dd17
- this._dl = 0xf70e5939
- this._el = 0xffc00b31
- this._fl = 0x68581511
- this._gl = 0x64f98fa7
- this._hl = 0xbefa4fa4
-
- return this
-}
-
-Sha384.prototype._hash = function () {
- var H = Buffer.allocUnsafe(48)
-
- function writeInt64BE (h, l, offset) {
- H.writeInt32BE(h, offset)
- H.writeInt32BE(l, offset + 4)
- }
-
- writeInt64BE(this._ah, this._al, 0)
- writeInt64BE(this._bh, this._bl, 8)
- writeInt64BE(this._ch, this._cl, 16)
- writeInt64BE(this._dh, this._dl, 24)
- writeInt64BE(this._eh, this._el, 32)
- writeInt64BE(this._fh, this._fl, 40)
-
- return H
-}
-
-module.exports = Sha384
-
-},{"./hash":35,"./sha512":42,"inherits":13,"safe-buffer":34}],42:[function(require,module,exports){
-var inherits = require('inherits')
-var Hash = require('./hash')
-var Buffer = require('safe-buffer').Buffer
-
-var K = [
- 0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
- 0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
- 0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
- 0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
- 0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
- 0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
- 0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
- 0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
- 0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
- 0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
- 0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
- 0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
- 0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
- 0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
- 0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
- 0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
- 0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
- 0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
- 0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
- 0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
- 0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
- 0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
- 0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
- 0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
- 0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
- 0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
- 0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
- 0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
- 0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
- 0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
- 0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
- 0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
- 0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
- 0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
- 0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
- 0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
- 0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
- 0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
- 0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
- 0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
-]
-
-var W = new Array(160)
-
-function Sha512 () {
- this.init()
- this._w = W
-
- Hash.call(this, 128, 112)
-}
-
-inherits(Sha512, Hash)
-
-Sha512.prototype.init = function () {
- this._ah = 0x6a09e667
- this._bh = 0xbb67ae85
- this._ch = 0x3c6ef372
- this._dh = 0xa54ff53a
- this._eh = 0x510e527f
- this._fh = 0x9b05688c
- this._gh = 0x1f83d9ab
- this._hh = 0x5be0cd19
-
- this._al = 0xf3bcc908
- this._bl = 0x84caa73b
- this._cl = 0xfe94f82b
- this._dl = 0x5f1d36f1
- this._el = 0xade682d1
- this._fl = 0x2b3e6c1f
- this._gl = 0xfb41bd6b
- this._hl = 0x137e2179
-
- return this
-}
-
-function Ch (x, y, z) {
- return z ^ (x & (y ^ z))
-}
-
-function maj (x, y, z) {
- return (x & y) | (z & (x | y))
-}
-
-function sigma0 (x, xl) {
- return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25)
-}
-
-function sigma1 (x, xl) {
- return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23)
-}
-
-function Gamma0 (x, xl) {
- return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7)
-}
-
-function Gamma0l (x, xl) {
- return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)
-}
-
-function Gamma1 (x, xl) {
- return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)
-}
-
-function Gamma1l (x, xl) {
- return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)
-}
-
-function getCarry (a, b) {
- return (a >>> 0) < (b >>> 0) ? 1 : 0
-}
-
-Sha512.prototype._update = function (M) {
- var W = this._w
-
- var ah = this._ah | 0
- var bh = this._bh | 0
- var ch = this._ch | 0
- var dh = this._dh | 0
- var eh = this._eh | 0
- var fh = this._fh | 0
- var gh = this._gh | 0
- var hh = this._hh | 0
-
- var al = this._al | 0
- var bl = this._bl | 0
- var cl = this._cl | 0
- var dl = this._dl | 0
- var el = this._el | 0
- var fl = this._fl | 0
- var gl = this._gl | 0
- var hl = this._hl | 0
-
- for (var i = 0; i < 32; i += 2) {
- W[i] = M.readInt32BE(i * 4)
- W[i + 1] = M.readInt32BE(i * 4 + 4)
- }
- for (; i < 160; i += 2) {
- var xh = W[i - 15 * 2]
- var xl = W[i - 15 * 2 + 1]
- var gamma0 = Gamma0(xh, xl)
- var gamma0l = Gamma0l(xl, xh)
-
- xh = W[i - 2 * 2]
- xl = W[i - 2 * 2 + 1]
- var gamma1 = Gamma1(xh, xl)
- var gamma1l = Gamma1l(xl, xh)
-
- // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
- var Wi7h = W[i - 7 * 2]
- var Wi7l = W[i - 7 * 2 + 1]
-
- var Wi16h = W[i - 16 * 2]
- var Wi16l = W[i - 16 * 2 + 1]
-
- var Wil = (gamma0l + Wi7l) | 0
- var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0
- Wil = (Wil + gamma1l) | 0
- Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0
- Wil = (Wil + Wi16l) | 0
- Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0
-
- W[i] = Wih
- W[i + 1] = Wil
- }
-
- for (var j = 0; j < 160; j += 2) {
- Wih = W[j]
- Wil = W[j + 1]
-
- var majh = maj(ah, bh, ch)
- var majl = maj(al, bl, cl)
-
- var sigma0h = sigma0(ah, al)
- var sigma0l = sigma0(al, ah)
- var sigma1h = sigma1(eh, el)
- var sigma1l = sigma1(el, eh)
-
- // t1 = h + sigma1 + ch + K[j] + W[j]
- var Kih = K[j]
- var Kil = K[j + 1]
-
- var chh = Ch(eh, fh, gh)
- var chl = Ch(el, fl, gl)
-
- var t1l = (hl + sigma1l) | 0
- var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0
- t1l = (t1l + chl) | 0
- t1h = (t1h + chh + getCarry(t1l, chl)) | 0
- t1l = (t1l + Kil) | 0
- t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0
- t1l = (t1l + Wil) | 0
- t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0
-
- // t2 = sigma0 + maj
- var t2l = (sigma0l + majl) | 0
- var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0
-
- hh = gh
- hl = gl
- gh = fh
- gl = fl
- fh = eh
- fl = el
- el = (dl + t1l) | 0
- eh = (dh + t1h + getCarry(el, dl)) | 0
- dh = ch
- dl = cl
- ch = bh
- cl = bl
- bh = ah
- bl = al
- al = (t1l + t2l) | 0
- ah = (t1h + t2h + getCarry(al, t1l)) | 0
- }
-
- this._al = (this._al + al) | 0
- this._bl = (this._bl + bl) | 0
- this._cl = (this._cl + cl) | 0
- this._dl = (this._dl + dl) | 0
- this._el = (this._el + el) | 0
- this._fl = (this._fl + fl) | 0
- this._gl = (this._gl + gl) | 0
- this._hl = (this._hl + hl) | 0
-
- this._ah = (this._ah + ah + getCarry(this._al, al)) | 0
- this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0
- this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0
- this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0
- this._eh = (this._eh + eh + getCarry(this._el, el)) | 0
- this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0
- this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0
- this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0
-}
-
-Sha512.prototype._hash = function () {
- var H = Buffer.allocUnsafe(64)
-
- function writeInt64BE (h, l, offset) {
- H.writeInt32BE(h, offset)
- H.writeInt32BE(l, offset + 4)
- }
-
- writeInt64BE(this._ah, this._al, 0)
- writeInt64BE(this._bh, this._bl, 8)
- writeInt64BE(this._ch, this._cl, 16)
- writeInt64BE(this._dh, this._dl, 24)
- writeInt64BE(this._eh, this._el, 32)
- writeInt64BE(this._fh, this._fl, 40)
- writeInt64BE(this._gh, this._gl, 48)
- writeInt64BE(this._hh, this._hl, 56)
-
- return H
-}
-
-module.exports = Sha512
-
-},{"./hash":35,"inherits":13,"safe-buffer":34}],43:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-module.exports = Stream;
-
-var EE = require('events').EventEmitter;
-var inherits = require('inherits');
-
-inherits(Stream, EE);
-Stream.Readable = require('readable-stream/readable.js');
-Stream.Writable = require('readable-stream/writable.js');
-Stream.Duplex = require('readable-stream/duplex.js');
-Stream.Transform = require('readable-stream/transform.js');
-Stream.PassThrough = require('readable-stream/passthrough.js');
-
-// Backwards-compat with node 0.4.x
-Stream.Stream = Stream;
-
-
-
-// old-style streams. Note that the pipe method (the only relevant
-// part of this class) is overridden in the Readable class.
-
-function Stream() {
- EE.call(this);
-}
-
-Stream.prototype.pipe = function(dest, options) {
- var source = this;
-
- function ondata(chunk) {
- if (dest.writable) {
- if (false === dest.write(chunk) && source.pause) {
- source.pause();
- }
- }
- }
-
- source.on('data', ondata);
-
- function ondrain() {
- if (source.readable && source.resume) {
- source.resume();
- }
- }
-
- dest.on('drain', ondrain);
-
- // If the 'end' option is not supplied, dest.end() will be called when
- // source gets the 'end' or 'close' events. Only dest.end() once.
- if (!dest._isStdio && (!options || options.end !== false)) {
- source.on('end', onend);
- source.on('close', onclose);
- }
-
- var didOnEnd = false;
- function onend() {
- if (didOnEnd) return;
- didOnEnd = true;
-
- dest.end();
- }
-
-
- function onclose() {
- if (didOnEnd) return;
- didOnEnd = true;
-
- if (typeof dest.destroy === 'function') dest.destroy();
- }
-
- // don't leave dangling pipes when there are errors.
- function onerror(er) {
- cleanup();
- if (EE.listenerCount(this, 'error') === 0) {
- throw er; // Unhandled stream error in pipe.
- }
- }
-
- source.on('error', onerror);
- dest.on('error', onerror);
-
- // remove all the event listeners that were added.
- function cleanup() {
- source.removeListener('data', ondata);
- dest.removeListener('drain', ondrain);
-
- source.removeListener('end', onend);
- source.removeListener('close', onclose);
-
- source.removeListener('error', onerror);
- dest.removeListener('error', onerror);
-
- source.removeListener('end', cleanup);
- source.removeListener('close', cleanup);
-
- dest.removeListener('close', cleanup);
- }
-
- source.on('end', cleanup);
- source.on('close', cleanup);
-
- dest.on('close', cleanup);
-
- dest.emit('pipe', source);
-
- // Allow for unix-like usage: A.pipe(B).pipe(C)
- return dest;
-};
-
-},{"events":10,"inherits":13,"readable-stream/duplex.js":19,"readable-stream/passthrough.js":29,"readable-stream/readable.js":30,"readable-stream/transform.js":31,"readable-stream/writable.js":32}],44:[function(require,module,exports){
-arguments[4][28][0].apply(exports,arguments)
-},{"dup":28,"safe-buffer":34}],45:[function(require,module,exports){
-(function (setImmediate,clearImmediate){
-var nextTick = require('process/browser.js').nextTick;
-var apply = Function.prototype.apply;
-var slice = Array.prototype.slice;
-var immediateIds = {};
-var nextImmediateId = 0;
-
-// DOM APIs, for completeness
-
-exports.setTimeout = function() {
- return new Timeout(apply.call(setTimeout, window, arguments), clearTimeout);
-};
-exports.setInterval = function() {
- return new Timeout(apply.call(setInterval, window, arguments), clearInterval);
-};
-exports.clearTimeout =
-exports.clearInterval = function(timeout) { timeout.close(); };
-
-function Timeout(id, clearFn) {
- this._id = id;
- this._clearFn = clearFn;
-}
-Timeout.prototype.unref = Timeout.prototype.ref = function() {};
-Timeout.prototype.close = function() {
- this._clearFn.call(window, this._id);
-};
-
-// Does not start the time, just sets up the members needed.
-exports.enroll = function(item, msecs) {
- clearTimeout(item._idleTimeoutId);
- item._idleTimeout = msecs;
-};
-
-exports.unenroll = function(item) {
- clearTimeout(item._idleTimeoutId);
- item._idleTimeout = -1;
-};
-
-exports._unrefActive = exports.active = function(item) {
- clearTimeout(item._idleTimeoutId);
-
- var msecs = item._idleTimeout;
- if (msecs >= 0) {
- item._idleTimeoutId = setTimeout(function onTimeout() {
- if (item._onTimeout)
- item._onTimeout();
- }, msecs);
- }
-};
-
-// That's not how node.js implements it but the exposed api is the same.
-exports.setImmediate = typeof setImmediate === "function" ? setImmediate : function(fn) {
- var id = nextImmediateId++;
- var args = arguments.length < 2 ? false : slice.call(arguments, 1);
-
- immediateIds[id] = true;
-
- nextTick(function onNextTick() {
- if (immediateIds[id]) {
- // fn.call() is faster so we optimize for the common use-case
- // @see http://jsperf.com/call-apply-segu
- if (args) {
- fn.apply(null, args);
- } else {
- fn.call(null);
- }
- // Prevent ids from leaking
- exports.clearImmediate(id);
- }
- });
-
- return id;
-};
-
-exports.clearImmediate = typeof clearImmediate === "function" ? clearImmediate : function(id) {
- delete immediateIds[id];
-};
-}).call(this,require("timers").setImmediate,require("timers").clearImmediate)
-},{"process/browser.js":18,"timers":45}],46:[function(require,module,exports){
-(function (global){
-
-/**
- * Module exports.
- */
-
-module.exports = deprecate;
-
-/**
- * Mark that a method should not be used.
- * Returns a modified function which warns once by default.
- *
- * If `localStorage.noDeprecation = true` is set, then it is a no-op.
- *
- * If `localStorage.throwDeprecation = true` is set, then deprecated functions
- * will throw an Error when invoked.
- *
- * If `localStorage.traceDeprecation = true` is set, then deprecated functions
- * will invoke `console.trace()` instead of `console.error()`.
- *
- * @param {Function} fn - the function to deprecate
- * @param {String} msg - the string to print to the console when `fn` is invoked
- * @returns {Function} a new "deprecated" version of `fn`
- * @api public
- */
-
-function deprecate (fn, msg) {
- if (config('noDeprecation')) {
- return fn;
- }
-
- var warned = false;
- function deprecated() {
- if (!warned) {
- if (config('throwDeprecation')) {
- throw new Error(msg);
- } else if (config('traceDeprecation')) {
- console.trace(msg);
- } else {
- console.warn(msg);
- }
- warned = true;
- }
- return fn.apply(this, arguments);
- }
-
- return deprecated;
-}
-
-/**
- * Checks `localStorage` for boolean values for the given `name`.
- *
- * @param {String} name
- * @returns {Boolean}
- * @api private
- */
-
-function config (name) {
- // accessing global.localStorage can trigger a DOMException in sandboxed iframes
- try {
- if (!global.localStorage) return false;
- } catch (_) {
- return false;
- }
- var val = global.localStorage[name];
- if (null == val) return false;
- return String(val).toLowerCase() === 'true';
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}]},{},[1])(1)
-});
projects / perso / Immae / Projets / Cryptomonnaies / BIP39.git / commitdiff
