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- (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.png = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
- (function (Buffer){
- 'use strict';
- var interlaceUtils = require('./interlace');
- var pixelBppMapper = [
-
- function() {},
-
-
- function(pxData, data, pxPos, rawPos) {
- if (rawPos === data.length) {
- throw new Error('Ran out of data');
- }
- var pixel = data[rawPos];
- pxData[pxPos] = pixel;
- pxData[pxPos + 1] = pixel;
- pxData[pxPos + 2] = pixel;
- pxData[pxPos + 3] = 0xff;
- },
-
-
- function(pxData, data, pxPos, rawPos) {
- if (rawPos + 1 >= data.length) {
- throw new Error('Ran out of data');
- }
- var pixel = data[rawPos];
- pxData[pxPos] = pixel;
- pxData[pxPos + 1] = pixel;
- pxData[pxPos + 2] = pixel;
- pxData[pxPos + 3] = data[rawPos + 1];
- },
-
-
- function(pxData, data, pxPos, rawPos) {
- if (rawPos + 2 >= data.length) {
- throw new Error('Ran out of data');
- }
- pxData[pxPos] = data[rawPos];
- pxData[pxPos + 1] = data[rawPos + 1];
- pxData[pxPos + 2] = data[rawPos + 2];
- pxData[pxPos + 3] = 0xff;
- },
-
-
- function(pxData, data, pxPos, rawPos) {
- if (rawPos + 3 >= data.length) {
- throw new Error('Ran out of data');
- }
- pxData[pxPos] = data[rawPos];
- pxData[pxPos + 1] = data[rawPos + 1];
- pxData[pxPos + 2] = data[rawPos + 2];
- pxData[pxPos + 3] = data[rawPos + 3];
- }
- ];
- var pixelBppCustomMapper = [
-
- function() {},
-
-
- function(pxData, pixelData, pxPos, maxBit) {
- var pixel = pixelData[0];
- pxData[pxPos] = pixel;
- pxData[pxPos + 1] = pixel;
- pxData[pxPos + 2] = pixel;
- pxData[pxPos + 3] = maxBit;
- },
-
-
- function(pxData, pixelData, pxPos) {
- var pixel = pixelData[0];
- pxData[pxPos] = pixel;
- pxData[pxPos + 1] = pixel;
- pxData[pxPos + 2] = pixel;
- pxData[pxPos + 3] = pixelData[1];
- },
-
-
- function(pxData, pixelData, pxPos, maxBit) {
- pxData[pxPos] = pixelData[0];
- pxData[pxPos + 1] = pixelData[1];
- pxData[pxPos + 2] = pixelData[2];
- pxData[pxPos + 3] = maxBit;
- },
-
-
- function(pxData, pixelData, pxPos) {
- pxData[pxPos] = pixelData[0];
- pxData[pxPos + 1] = pixelData[1];
- pxData[pxPos + 2] = pixelData[2];
- pxData[pxPos + 3] = pixelData[3];
- }
- ];
- function bitRetriever(data, depth) {
- var leftOver = [];
- var i = 0;
- function split() {
- if (i === data.length) {
- throw new Error('Ran out of data');
- }
- var byte = data[i];
- i++;
- var byte8, byte7, byte6, byte5, byte4, byte3, byte2, byte1;
- switch (depth) {
- default:
- throw new Error('unrecognised depth');
- case 16:
- byte2 = data[i];
- i++;
- leftOver.push(((byte << 8) + byte2));
- break;
- case 4:
- byte2 = byte & 0x0f;
- byte1 = byte >> 4;
- leftOver.push(byte1, byte2);
- break;
- case 2:
- byte4 = byte & 3;
- byte3 = byte >> 2 & 3;
- byte2 = byte >> 4 & 3;
- byte1 = byte >> 6 & 3;
- leftOver.push(byte1, byte2, byte3, byte4);
- break;
- case 1:
- byte8 = byte & 1;
- byte7 = byte >> 1 & 1;
- byte6 = byte >> 2 & 1;
- byte5 = byte >> 3 & 1;
- byte4 = byte >> 4 & 1;
- byte3 = byte >> 5 & 1;
- byte2 = byte >> 6 & 1;
- byte1 = byte >> 7 & 1;
- leftOver.push(byte1, byte2, byte3, byte4, byte5, byte6, byte7, byte8);
- break;
- }
- }
- return {
- get: function(count) {
- while (leftOver.length < count) {
- split();
- }
- var returner = leftOver.slice(0, count);
- leftOver = leftOver.slice(count);
- return returner;
- },
- resetAfterLine: function() {
- leftOver.length = 0;
- },
- end: function() {
- if (i !== data.length) {
- throw new Error('extra data found');
- }
- }
- };
- }
- function mapImage8Bit(image, pxData, getPxPos, bpp, data, rawPos) {
- var imageWidth = image.width;
- var imageHeight = image.height;
- var imagePass = image.index;
- for (var y = 0; y < imageHeight; y++) {
- for (var x = 0; x < imageWidth; x++) {
- var pxPos = getPxPos(x, y, imagePass);
- pixelBppMapper[bpp](pxData, data, pxPos, rawPos);
- rawPos += bpp;
- }
- }
- return rawPos;
- }
- function mapImageCustomBit(image, pxData, getPxPos, bpp, bits, maxBit) {
- var imageWidth = image.width;
- var imageHeight = image.height;
- var imagePass = image.index;
- for (var y = 0; y < imageHeight; y++) {
- for (var x = 0; x < imageWidth; x++) {
- var pixelData = bits.get(bpp);
- var pxPos = getPxPos(x, y, imagePass);
- pixelBppCustomMapper[bpp](pxData, pixelData, pxPos, maxBit);
- }
- bits.resetAfterLine();
- }
- }
- exports.dataToBitMap = function(data, bitmapInfo) {
- var width = bitmapInfo.width;
- var height = bitmapInfo.height;
- var depth = bitmapInfo.depth;
- var bpp = bitmapInfo.bpp;
- var interlace = bitmapInfo.interlace;
- if (depth !== 8) {
- var bits = bitRetriever(data, depth);
- }
- var pxData;
- if (depth <= 8) {
- pxData = new Buffer(width * height * 4);
- }
- else {
- pxData = new Uint16Array(width * height * 4);
- }
- var maxBit = Math.pow(2, depth) - 1;
- var rawPos = 0;
- var images;
- var getPxPos;
- if (interlace) {
- images = interlaceUtils.getImagePasses(width, height);
- getPxPos = interlaceUtils.getInterlaceIterator(width, height);
- }
- else {
- var nonInterlacedPxPos = 0;
- getPxPos = function() {
- var returner = nonInterlacedPxPos;
- nonInterlacedPxPos += 4;
- return returner;
- };
- images = [{ width: width, height: height }];
- }
- for (var imageIndex = 0; imageIndex < images.length; imageIndex++) {
- if (depth === 8) {
- rawPos = mapImage8Bit(images[imageIndex], pxData, getPxPos, bpp, data, rawPos);
- }
- else {
- mapImageCustomBit(images[imageIndex], pxData, getPxPos, bpp, bits, maxBit);
- }
- }
- if (depth === 8) {
- if (rawPos !== data.length) {
- throw new Error('extra data found');
- }
- }
- else {
- bits.end();
- }
- return pxData;
- };
- }).call(this,require("buffer").Buffer)
- },{"./interlace":11,"buffer":32}],2:[function(require,module,exports){
- (function (Buffer){
- 'use strict';
- var constants = require('./constants');
- module.exports = function(dataIn, width, height, options) {
- var outHasAlpha = [constants.COLORTYPE_COLOR_ALPHA, constants.COLORTYPE_ALPHA].indexOf(options.colorType) !== -1;
- if (options.colorType === options.inputColorType) {
- var bigEndian = (function() {
- var buffer = new ArrayBuffer(2);
- new DataView(buffer).setInt16(0, 256, true );
-
- return new Int16Array(buffer)[0] !== 256;
- })();
-
- if (options.bitDepth === 8 || (options.bitDepth === 16 && bigEndian)) {
- return dataIn;
- }
- }
-
- var data = options.bitDepth !== 16 ? dataIn : new Uint16Array(dataIn.buffer);
- var maxValue = 255;
- var inBpp = constants.COLORTYPE_TO_BPP_MAP[options.inputColorType];
- if (inBpp === 4 && !options.inputHasAlpha) {
- inBpp = 3;
- }
- var outBpp = constants.COLORTYPE_TO_BPP_MAP[options.colorType];
- if (options.bitDepth === 16) {
- maxValue = 65535;
- outBpp *= 2;
- }
- var outData = new Buffer(width * height * outBpp);
- var inIndex = 0;
- var outIndex = 0;
- var bgColor = options.bgColor || {};
- if (bgColor.red === undefined) {
- bgColor.red = maxValue;
- }
- if (bgColor.green === undefined) {
- bgColor.green = maxValue;
- }
- if (bgColor.blue === undefined) {
- bgColor.blue = maxValue;
- }
- function getRGBA() {
- var red;
- var green;
- var blue;
- var alpha = maxValue;
- switch (options.inputColorType) {
- case constants.COLORTYPE_COLOR_ALPHA:
- alpha = data[inIndex + 3];
- red = data[inIndex];
- green = data[inIndex + 1];
- blue = data[inIndex + 2];
- break;
- case constants.COLORTYPE_COLOR:
- red = data[inIndex];
- green = data[inIndex + 1];
- blue = data[inIndex + 2];
- break;
- case constants.COLORTYPE_ALPHA:
- alpha = data[inIndex + 1];
- red = data[inIndex];
- green = red;
- blue = red;
- break;
- case constants.COLORTYPE_GRAYSCALE:
- red = data[inIndex];
- green = red;
- blue = red;
- break;
- default:
- throw new Error('input color type:' + options.inputColorType + ' is not supported at present');
- }
- if (options.inputHasAlpha) {
- if (!outHasAlpha) {
- alpha /= maxValue;
- red = Math.min(Math.max(Math.round((1 - alpha) * bgColor.red + alpha * red), 0), maxValue);
- green = Math.min(Math.max(Math.round((1 - alpha) * bgColor.green + alpha * green), 0), maxValue);
- blue = Math.min(Math.max(Math.round((1 - alpha) * bgColor.blue + alpha * blue), 0), maxValue);
- }
- }
- return { red: red, green: green, blue: blue, alpha: alpha };
- }
- for (var y = 0; y < height; y++) {
- for (var x = 0; x < width; x++) {
- var rgba = getRGBA(data, inIndex);
- switch (options.colorType) {
- case constants.COLORTYPE_COLOR_ALPHA:
- case constants.COLORTYPE_COLOR:
- if (options.bitDepth === 8) {
- outData[outIndex] = rgba.red;
- outData[outIndex + 1] = rgba.green;
- outData[outIndex + 2] = rgba.blue;
- if (outHasAlpha) {
- outData[outIndex + 3] = rgba.alpha;
- }
- }
- else {
- outData.writeUInt16BE(rgba.red, outIndex);
- outData.writeUInt16BE(rgba.green, outIndex + 2);
- outData.writeUInt16BE(rgba.blue, outIndex + 4);
- if (outHasAlpha) {
- outData.writeUInt16BE(rgba.alpha, outIndex + 6);
- }
- }
- break;
- case constants.COLORTYPE_ALPHA:
- case constants.COLORTYPE_GRAYSCALE:
-
- var grayscale = (rgba.red + rgba.green + rgba.blue) / 3;
- if (options.bitDepth === 8) {
- outData[outIndex] = grayscale;
- if (outHasAlpha) {
- outData[outIndex + 1] = rgba.alpha;
- }
- }
- else {
- outData.writeUInt16BE(grayscale, outIndex);
- if (outHasAlpha) {
- outData.writeUInt16BE(rgba.alpha, outIndex + 2);
- }
- }
- break;
- default:
- throw new Error('unrecognised color Type ' + options.colorType);
- }
- inIndex += inBpp;
- outIndex += outBpp;
- }
- }
- return outData;
- };
- }).call(this,require("buffer").Buffer)
- },{"./constants":4,"buffer":32}],3:[function(require,module,exports){
- (function (process,Buffer){
- 'use strict';
- var util = require('util');
- var Stream = require('stream');
- var ChunkStream = module.exports = function() {
- Stream.call(this);
- this._buffers = [];
- this._buffered = 0;
- this._reads = [];
- this._paused = false;
- this._encoding = 'utf8';
- this.writable = true;
- };
- util.inherits(ChunkStream, Stream);
- ChunkStream.prototype.read = function(length, callback) {
- this._reads.push({
- length: Math.abs(length),
- allowLess: length < 0,
- func: callback
- });
- process.nextTick(function() {
- this._process();
-
- if (this._paused && this._reads.length > 0) {
- this._paused = false;
- this.emit('drain');
- }
- }.bind(this));
- };
- ChunkStream.prototype.write = function(data, encoding) {
- if (!this.writable) {
- this.emit('error', new Error('Stream not writable'));
- return false;
- }
- var dataBuffer;
- if (Buffer.isBuffer(data)) {
- dataBuffer = data;
- }
- else {
- dataBuffer = new Buffer(data, encoding || this._encoding);
- }
- this._buffers.push(dataBuffer);
- this._buffered += dataBuffer.length;
- this._process();
-
- if (this._reads && this._reads.length === 0) {
- this._paused = true;
- }
- return this.writable && !this._paused;
- };
- ChunkStream.prototype.end = function(data, encoding) {
- if (data) {
- this.write(data, encoding);
- }
- this.writable = false;
-
- if (!this._buffers) {
- return;
- }
-
- if (this._buffers.length === 0) {
- this._end();
- }
- else {
- this._buffers.push(null);
- this._process();
- }
- };
- ChunkStream.prototype.destroySoon = ChunkStream.prototype.end;
- ChunkStream.prototype._end = function() {
- if (this._reads.length > 0) {
- this.emit('error',
- new Error('Unexpected end of input')
- );
- }
- this.destroy();
- };
- ChunkStream.prototype.destroy = function() {
- if (!this._buffers) {
- return;
- }
- this.writable = false;
- this._reads = null;
- this._buffers = null;
- this.emit('close');
- };
- ChunkStream.prototype._processReadAllowingLess = function(read) {
-
- this._reads.shift();
-
- var smallerBuf = this._buffers[0];
-
- if (smallerBuf.length > read.length) {
- this._buffered -= read.length;
- this._buffers[0] = smallerBuf.slice(read.length);
- read.func.call(this, smallerBuf.slice(0, read.length));
- }
- else {
-
- this._buffered -= smallerBuf.length;
- this._buffers.shift();
- read.func.call(this, smallerBuf);
- }
- };
- ChunkStream.prototype._processRead = function(read) {
- this._reads.shift();
- var pos = 0;
- var count = 0;
- var data = new Buffer(read.length);
-
- while (pos < read.length) {
- var buf = this._buffers[count++];
- var len = Math.min(buf.length, read.length - pos);
- buf.copy(data, pos, 0, len);
- pos += len;
-
- if (len !== buf.length) {
- this._buffers[--count] = buf.slice(len);
- }
- }
-
- if (count > 0) {
- this._buffers.splice(0, count);
- }
- this._buffered -= read.length;
- read.func.call(this, data);
- };
- ChunkStream.prototype._process = function() {
- try {
-
- while (this._buffered > 0 && this._reads && this._reads.length > 0) {
- var read = this._reads[0];
-
- if (read.allowLess) {
- this._processReadAllowingLess(read);
- }
- else if (this._buffered >= read.length) {
-
- this._processRead(read);
- }
- else {
-
-
- break;
- }
- }
- if (this._buffers && !this.writable) {
- this._end();
- }
- }
- catch (ex) {
- this.emit('error', ex);
- }
- };
- }).call(this,require('_process'),require("buffer").Buffer)
- },{"_process":51,"buffer":32,"stream":64,"util":69}],4:[function(require,module,exports){
- 'use strict';
- module.exports = {
- PNG_SIGNATURE: [0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a],
- TYPE_IHDR: 0x49484452,
- TYPE_IEND: 0x49454e44,
- TYPE_IDAT: 0x49444154,
- TYPE_PLTE: 0x504c5445,
- TYPE_tRNS: 0x74524e53,
- TYPE_gAMA: 0x67414d41,
-
- COLORTYPE_GRAYSCALE: 0,
- COLORTYPE_PALETTE: 1,
- COLORTYPE_COLOR: 2,
- COLORTYPE_ALPHA: 4,
-
- COLORTYPE_PALETTE_COLOR: 3,
- COLORTYPE_COLOR_ALPHA: 6,
- COLORTYPE_TO_BPP_MAP: {
- 0: 1,
- 2: 3,
- 3: 1,
- 4: 2,
- 6: 4
- },
- GAMMA_DIVISION: 100000
- };
- },{}],5:[function(require,module,exports){
- 'use strict';
- var crcTable = [];
- (function() {
- for (var i = 0; i < 256; i++) {
- var currentCrc = i;
- for (var j = 0; j < 8; j++) {
- if (currentCrc & 1) {
- currentCrc = 0xedb88320 ^ (currentCrc >>> 1);
- }
- else {
- currentCrc = currentCrc >>> 1;
- }
- }
- crcTable[i] = currentCrc;
- }
- }());
- var CrcCalculator = module.exports = function() {
- this._crc = -1;
- };
- CrcCalculator.prototype.write = function(data) {
- for (var i = 0; i < data.length; i++) {
- this._crc = crcTable[(this._crc ^ data[i]) & 0xff] ^ (this._crc >>> 8);
- }
- return true;
- };
- CrcCalculator.prototype.crc32 = function() {
- return this._crc ^ -1;
- };
- CrcCalculator.crc32 = function(buf) {
- var crc = -1;
- for (var i = 0; i < buf.length; i++) {
- crc = crcTable[(crc ^ buf[i]) & 0xff] ^ (crc >>> 8);
- }
- return crc ^ -1;
- };
- },{}],6:[function(require,module,exports){
- (function (Buffer){
- 'use strict';
- var paethPredictor = require('./paeth-predictor');
- function filterNone(pxData, pxPos, byteWidth, rawData, rawPos) {
- for (var x = 0; x < byteWidth; x++) {
- rawData[rawPos + x] = pxData[pxPos + x];
- }
- }
- function filterSumNone(pxData, pxPos, byteWidth) {
- var sum = 0;
- var length = pxPos + byteWidth;
- for (var i = pxPos; i < length; i++) {
- sum += Math.abs(pxData[i]);
- }
- return sum;
- }
- function filterSub(pxData, pxPos, byteWidth, rawData, rawPos, bpp) {
- for (var x = 0; x < byteWidth; x++) {
- var left = x >= bpp ? pxData[pxPos + x - bpp] : 0;
- var val = pxData[pxPos + x] - left;
- rawData[rawPos + x] = val;
- }
- }
- function filterSumSub(pxData, pxPos, byteWidth, bpp) {
- var sum = 0;
- for (var x = 0; x < byteWidth; x++) {
- var left = x >= bpp ? pxData[pxPos + x - bpp] : 0;
- var val = pxData[pxPos + x] - left;
- sum += Math.abs(val);
- }
- return sum;
- }
- function filterUp(pxData, pxPos, byteWidth, rawData, rawPos) {
- for (var x = 0; x < byteWidth; x++) {
- var up = pxPos > 0 ? pxData[pxPos + x - byteWidth] : 0;
- var val = pxData[pxPos + x] - up;
- rawData[rawPos + x] = val;
- }
- }
- function filterSumUp(pxData, pxPos, byteWidth) {
- var sum = 0;
- var length = pxPos + byteWidth;
- for (var x = pxPos; x < length; x++) {
- var up = pxPos > 0 ? pxData[x - byteWidth] : 0;
- var val = pxData[x] - up;
- sum += Math.abs(val);
- }
- return sum;
- }
- function filterAvg(pxData, pxPos, byteWidth, rawData, rawPos, bpp) {
- for (var x = 0; x < byteWidth; x++) {
- var left = x >= bpp ? pxData[pxPos + x - bpp] : 0;
- var up = pxPos > 0 ? pxData[pxPos + x - byteWidth] : 0;
- var val = pxData[pxPos + x] - ((left + up) >> 1);
- rawData[rawPos + x] = val;
- }
- }
- function filterSumAvg(pxData, pxPos, byteWidth, bpp) {
- var sum = 0;
- for (var x = 0; x < byteWidth; x++) {
- var left = x >= bpp ? pxData[pxPos + x - bpp] : 0;
- var up = pxPos > 0 ? pxData[pxPos + x - byteWidth] : 0;
- var val = pxData[pxPos + x] - ((left + up) >> 1);
- sum += Math.abs(val);
- }
- return sum;
- }
- function filterPaeth(pxData, pxPos, byteWidth, rawData, rawPos, bpp) {
- for (var x = 0; x < byteWidth; x++) {
- var left = x >= bpp ? pxData[pxPos + x - bpp] : 0;
- var up = pxPos > 0 ? pxData[pxPos + x - byteWidth] : 0;
- var upleft = pxPos > 0 && x >= bpp ? pxData[pxPos + x - (byteWidth + bpp)] : 0;
- var val = pxData[pxPos + x] - paethPredictor(left, up, upleft);
- rawData[rawPos + x] = val;
- }
- }
- function filterSumPaeth(pxData, pxPos, byteWidth, bpp) {
- var sum = 0;
- for (var x = 0; x < byteWidth; x++) {
- var left = x >= bpp ? pxData[pxPos + x - bpp] : 0;
- var up = pxPos > 0 ? pxData[pxPos + x - byteWidth] : 0;
- var upleft = pxPos > 0 && x >= bpp ? pxData[pxPos + x - (byteWidth + bpp)] : 0;
- var val = pxData[pxPos + x] - paethPredictor(left, up, upleft);
- sum += Math.abs(val);
- }
- return sum;
- }
- var filters = {
- 0: filterNone,
- 1: filterSub,
- 2: filterUp,
- 3: filterAvg,
- 4: filterPaeth
- };
- var filterSums = {
- 0: filterSumNone,
- 1: filterSumSub,
- 2: filterSumUp,
- 3: filterSumAvg,
- 4: filterSumPaeth
- };
- module.exports = function(pxData, width, height, options, bpp) {
- var filterTypes;
- if (!('filterType' in options) || options.filterType === -1) {
- filterTypes = [0, 1, 2, 3, 4];
- }
- else if (typeof options.filterType === 'number') {
- filterTypes = [options.filterType];
- }
- else {
- throw new Error('unrecognised filter types');
- }
- if (options.bitDepth === 16) {
- bpp *= 2;
- }
- var byteWidth = width * bpp;
- var rawPos = 0;
- var pxPos = 0;
- var rawData = new Buffer((byteWidth + 1) * height);
- var sel = filterTypes[0];
- for (var y = 0; y < height; y++) {
- if (filterTypes.length > 1) {
-
- var min = Infinity;
- for (var i = 0; i < filterTypes.length; i++) {
- var sum = filterSums[filterTypes[i]](pxData, pxPos, byteWidth, bpp);
- if (sum < min) {
- sel = filterTypes[i];
- min = sum;
- }
- }
- }
- rawData[rawPos] = sel;
- rawPos++;
- filters[sel](pxData, pxPos, byteWidth, rawData, rawPos, bpp);
- rawPos += byteWidth;
- pxPos += byteWidth;
- }
- return rawData;
- };
- }).call(this,require("buffer").Buffer)
- },{"./paeth-predictor":15,"buffer":32}],7:[function(require,module,exports){
- (function (Buffer){
- 'use strict';
- var util = require('util');
- var ChunkStream = require('./chunkstream');
- var Filter = require('./filter-parse');
- var FilterAsync = module.exports = function(bitmapInfo) {
- ChunkStream.call(this);
- var buffers = [];
- var that = this;
- this._filter = new Filter(bitmapInfo, {
- read: this.read.bind(this),
- write: function(buffer) {
- buffers.push(buffer);
- },
- complete: function() {
- that.emit('complete', Buffer.concat(buffers));
- }
- });
- this._filter.start();
- };
- util.inherits(FilterAsync, ChunkStream);
- }).call(this,require("buffer").Buffer)
- },{"./chunkstream":3,"./filter-parse":9,"buffer":32,"util":69}],8:[function(require,module,exports){
- (function (Buffer){
- 'use strict';
- var SyncReader = require('./sync-reader');
- var Filter = require('./filter-parse');
- exports.process = function(inBuffer, bitmapInfo) {
- var outBuffers = [];
- var reader = new SyncReader(inBuffer);
- var filter = new Filter(bitmapInfo, {
- read: reader.read.bind(reader),
- write: function(bufferPart) {
- outBuffers.push(bufferPart);
- },
- complete: function() {
- }
- });
- filter.start();
- reader.process();
- return Buffer.concat(outBuffers);
- };
- }).call(this,require("buffer").Buffer)
- },{"./filter-parse":9,"./sync-reader":22,"buffer":32}],9:[function(require,module,exports){
- (function (Buffer){
- 'use strict';
- var interlaceUtils = require('./interlace');
- var paethPredictor = require('./paeth-predictor');
- function getByteWidth(width, bpp, depth) {
- var byteWidth = width * bpp;
- if (depth !== 8) {
- byteWidth = Math.ceil(byteWidth / (8 / depth));
- }
- return byteWidth;
- }
- var Filter = module.exports = function(bitmapInfo, dependencies) {
- var width = bitmapInfo.width;
- var height = bitmapInfo.height;
- var interlace = bitmapInfo.interlace;
- var bpp = bitmapInfo.bpp;
- var depth = bitmapInfo.depth;
- this.read = dependencies.read;
- this.write = dependencies.write;
- this.complete = dependencies.complete;
- this._imageIndex = 0;
- this._images = [];
- if (interlace) {
- var passes = interlaceUtils.getImagePasses(width, height);
- for (var i = 0; i < passes.length; i++) {
- this._images.push({
- byteWidth: getByteWidth(passes[i].width, bpp, depth),
- height: passes[i].height,
- lineIndex: 0
- });
- }
- }
- else {
- this._images.push({
- byteWidth: getByteWidth(width, bpp, depth),
- height: height,
- lineIndex: 0
- });
- }
-
-
-
-
- if (depth === 8) {
- this._xComparison = bpp;
- }
- else if (depth === 16) {
- this._xComparison = bpp * 2;
- }
- else {
- this._xComparison = 1;
- }
- };
- Filter.prototype.start = function() {
- this.read(this._images[this._imageIndex].byteWidth + 1, this._reverseFilterLine.bind(this));
- };
- Filter.prototype._unFilterType1 = function(rawData, unfilteredLine, byteWidth) {
- var xComparison = this._xComparison;
- var xBiggerThan = xComparison - 1;
- for (var x = 0; x < byteWidth; x++) {
- var rawByte = rawData[1 + x];
- var f1Left = x > xBiggerThan ? unfilteredLine[x - xComparison] : 0;
- unfilteredLine[x] = rawByte + f1Left;
- }
- };
- Filter.prototype._unFilterType2 = function(rawData, unfilteredLine, byteWidth) {
- var lastLine = this._lastLine;
- for (var x = 0; x < byteWidth; x++) {
- var rawByte = rawData[1 + x];
- var f2Up = lastLine ? lastLine[x] : 0;
- unfilteredLine[x] = rawByte + f2Up;
- }
- };
- Filter.prototype._unFilterType3 = function(rawData, unfilteredLine, byteWidth) {
- var xComparison = this._xComparison;
- var xBiggerThan = xComparison - 1;
- var lastLine = this._lastLine;
- for (var x = 0; x < byteWidth; x++) {
- var rawByte = rawData[1 + x];
- var f3Up = lastLine ? lastLine[x] : 0;
- var f3Left = x > xBiggerThan ? unfilteredLine[x - xComparison] : 0;
- var f3Add = Math.floor((f3Left + f3Up) / 2);
- unfilteredLine[x] = rawByte + f3Add;
- }
- };
- Filter.prototype._unFilterType4 = function(rawData, unfilteredLine, byteWidth) {
- var xComparison = this._xComparison;
- var xBiggerThan = xComparison - 1;
- var lastLine = this._lastLine;
- for (var x = 0; x < byteWidth; x++) {
- var rawByte = rawData[1 + x];
- var f4Up = lastLine ? lastLine[x] : 0;
- var f4Left = x > xBiggerThan ? unfilteredLine[x - xComparison] : 0;
- var f4UpLeft = x > xBiggerThan && lastLine ? lastLine[x - xComparison] : 0;
- var f4Add = paethPredictor(f4Left, f4Up, f4UpLeft);
- unfilteredLine[x] = rawByte + f4Add;
- }
- };
- Filter.prototype._reverseFilterLine = function(rawData) {
- var filter = rawData[0];
- var unfilteredLine;
- var currentImage = this._images[this._imageIndex];
- var byteWidth = currentImage.byteWidth;
- if (filter === 0) {
- unfilteredLine = rawData.slice(1, byteWidth + 1);
- }
- else {
- unfilteredLine = new Buffer(byteWidth);
- switch (filter) {
- case 1:
- this._unFilterType1(rawData, unfilteredLine, byteWidth);
- break;
- case 2:
- this._unFilterType2(rawData, unfilteredLine, byteWidth);
- break;
- case 3:
- this._unFilterType3(rawData, unfilteredLine, byteWidth);
- break;
- case 4:
- this._unFilterType4(rawData, unfilteredLine, byteWidth);
- break;
- default:
- throw new Error('Unrecognised filter type - ' + filter);
- }
- }
- this.write(unfilteredLine);
- currentImage.lineIndex++;
- if (currentImage.lineIndex >= currentImage.height) {
- this._lastLine = null;
- this._imageIndex++;
- currentImage = this._images[this._imageIndex];
- }
- else {
- this._lastLine = unfilteredLine;
- }
- if (currentImage) {
-
- this.read(currentImage.byteWidth + 1, this._reverseFilterLine.bind(this));
- }
- else {
- this._lastLine = null;
- this.complete();
- }
- };
- }).call(this,require("buffer").Buffer)
- },{"./interlace":11,"./paeth-predictor":15,"buffer":32}],10:[function(require,module,exports){
- (function (Buffer){
- 'use strict';
- function dePalette(indata, outdata, width, height, palette) {
- var pxPos = 0;
-
- for (var y = 0; y < height; y++) {
- for (var x = 0; x < width; x++) {
- var color = palette[indata[pxPos]];
- if (!color) {
- throw new Error('index ' + indata[pxPos] + ' not in palette');
- }
- for (var i = 0; i < 4; i++) {
- outdata[pxPos + i] = color[i];
- }
- pxPos += 4;
- }
- }
- }
- function replaceTransparentColor(indata, outdata, width, height, transColor) {
- var pxPos = 0;
- for (var y = 0; y < height; y++) {
- for (var x = 0; x < width; x++) {
- var makeTrans = false;
- if (transColor.length === 1) {
- if (transColor[0] === indata[pxPos]) {
- makeTrans = true;
- }
- }
- else if (transColor[0] === indata[pxPos] && transColor[1] === indata[pxPos + 1] && transColor[2] === indata[pxPos + 2]) {
- makeTrans = true;
- }
- if (makeTrans) {
- for (var i = 0; i < 4; i++) {
- outdata[pxPos + i] = 0;
- }
- }
- pxPos += 4;
- }
- }
- }
- function scaleDepth(indata, outdata, width, height, depth) {
- var maxOutSample = 255;
- var maxInSample = Math.pow(2, depth) - 1;
- var pxPos = 0;
- for (var y = 0; y < height; y++) {
- for (var x = 0; x < width; x++) {
- for (var i = 0; i < 4; i++) {
- outdata[pxPos + i] = Math.floor((indata[pxPos + i] * maxOutSample) / maxInSample + 0.5);
- }
- pxPos += 4;
- }
- }
- }
- module.exports = function(indata, imageData) {
- var depth = imageData.depth;
- var width = imageData.width;
- var height = imageData.height;
- var colorType = imageData.colorType;
- var transColor = imageData.transColor;
- var palette = imageData.palette;
- var outdata = indata;
- if (colorType === 3) {
- dePalette(indata, outdata, width, height, palette);
- }
- else {
- if (transColor) {
- replaceTransparentColor(indata, outdata, width, height, transColor);
- }
-
- if (depth !== 8) {
-
- if (depth === 16) {
- outdata = new Buffer(width * height * 4);
- }
- scaleDepth(indata, outdata, width, height, depth);
- }
- }
- return outdata;
- };
- }).call(this,require("buffer").Buffer)
- },{"buffer":32}],11:[function(require,module,exports){
- 'use strict';
- var imagePasses = [
- {
- x: [0],
- y: [0]
- },
- {
- x: [4],
- y: [0]
- },
- {
- x: [0, 4],
- y: [4]
- },
- {
- x: [2, 6],
- y: [0, 4]
- },
- {
- x: [0, 2, 4, 6],
- y: [2, 6]
- },
- {
- x: [1, 3, 5, 7],
- y: [0, 2, 4, 6]
- },
- {
- x: [0, 1, 2, 3, 4, 5, 6, 7],
- y: [1, 3, 5, 7]
- }
- ];
- exports.getImagePasses = function(width, height) {
- var images = [];
- var xLeftOver = width % 8;
- var yLeftOver = height % 8;
- var xRepeats = (width - xLeftOver) / 8;
- var yRepeats = (height - yLeftOver) / 8;
- for (var i = 0; i < imagePasses.length; i++) {
- var pass = imagePasses[i];
- var passWidth = xRepeats * pass.x.length;
- var passHeight = yRepeats * pass.y.length;
- for (var j = 0; j < pass.x.length; j++) {
- if (pass.x[j] < xLeftOver) {
- passWidth++;
- }
- else {
- break;
- }
- }
- for (j = 0; j < pass.y.length; j++) {
- if (pass.y[j] < yLeftOver) {
- passHeight++;
- }
- else {
- break;
- }
- }
- if (passWidth > 0 && passHeight > 0) {
- images.push({ width: passWidth, height: passHeight, index: i });
- }
- }
- return images;
- };
- exports.getInterlaceIterator = function(width) {
- return function(x, y, pass) {
- var outerXLeftOver = x % imagePasses[pass].x.length;
- var outerX = (((x - outerXLeftOver) / imagePasses[pass].x.length) * 8) + imagePasses[pass].x[outerXLeftOver];
- var outerYLeftOver = y % imagePasses[pass].y.length;
- var outerY = (((y - outerYLeftOver) / imagePasses[pass].y.length) * 8) + imagePasses[pass].y[outerYLeftOver];
- return (outerX * 4) + (outerY * width * 4);
- };
- };
- },{}],12:[function(require,module,exports){
- (function (Buffer){
- 'use strict';
- var util = require('util');
- var Stream = require('stream');
- var constants = require('./constants');
- var Packer = require('./packer');
- var PackerAsync = module.exports = function(opt) {
- Stream.call(this);
- var options = opt || {};
- this._packer = new Packer(options);
- this._deflate = this._packer.createDeflate();
- this.readable = true;
- };
- util.inherits(PackerAsync, Stream);
- PackerAsync.prototype.pack = function(data, width, height, gamma) {
-
- this.emit('data', new Buffer(constants.PNG_SIGNATURE));
- this.emit('data', this._packer.packIHDR(width, height));
- if (gamma) {
- this.emit('data', this._packer.packGAMA(gamma));
- }
- var filteredData = this._packer.filterData(data, width, height);
-
- this._deflate.on('error', this.emit.bind(this, 'error'));
- this._deflate.on('data', function(compressedData) {
- this.emit('data', this._packer.packIDAT(compressedData));
- }.bind(this));
- this._deflate.on('end', function() {
- this.emit('data', this._packer.packIEND());
- this.emit('end');
- }.bind(this));
- this._deflate.end(filteredData);
- };
- }).call(this,require("buffer").Buffer)
- },{"./constants":4,"./packer":14,"buffer":32,"stream":64,"util":69}],13:[function(require,module,exports){
- (function (Buffer){
- 'use strict';
- var hasSyncZlib = true;
- var zlib = require('zlib');
- if (!zlib.deflateSync) {
- hasSyncZlib = false;
- }
- var constants = require('./constants');
- var Packer = require('./packer');
- module.exports = function(metaData, opt) {
- if (!hasSyncZlib) {
- throw new Error('To use the sync capability of this library in old node versions, please pin pngjs to v2.3.0');
- }
- var options = opt || {};
- var packer = new Packer(options);
- var chunks = [];
-
- chunks.push(new Buffer(constants.PNG_SIGNATURE));
-
- chunks.push(packer.packIHDR(metaData.width, metaData.height));
- if (metaData.gamma) {
- chunks.push(packer.packGAMA(metaData.gamma));
- }
- var filteredData = packer.filterData(metaData.data, metaData.width, metaData.height);
-
- var compressedData = zlib.deflateSync(filteredData, packer.getDeflateOptions());
- filteredData = null;
- if (!compressedData || !compressedData.length) {
- throw new Error('bad png - invalid compressed data response');
- }
- chunks.push(packer.packIDAT(compressedData));
-
- chunks.push(packer.packIEND());
- return Buffer.concat(chunks);
- };
- }).call(this,require("buffer").Buffer)
- },{"./constants":4,"./packer":14,"buffer":32,"zlib":30}],14:[function(require,module,exports){
- (function (Buffer){
- 'use strict';
- var constants = require('./constants');
- var CrcStream = require('./crc');
- var bitPacker = require('./bitpacker');
- var filter = require('./filter-pack');
- var zlib = require('zlib');
- var Packer = module.exports = function(options) {
- this._options = options;
- options.deflateChunkSize = options.deflateChunkSize || 32 * 1024;
- options.deflateLevel = options.deflateLevel != null ? options.deflateLevel : 9;
- options.deflateStrategy = options.deflateStrategy != null ? options.deflateStrategy : 3;
- options.inputHasAlpha = options.inputHasAlpha != null ? options.inputHasAlpha : true;
- options.deflateFactory = options.deflateFactory || zlib.createDeflate;
- options.bitDepth = options.bitDepth || 8;
-
- options.colorType = (typeof options.colorType === 'number') ? options.colorType : constants.COLORTYPE_COLOR_ALPHA;
- options.inputColorType = (typeof options.inputColorType === 'number') ? options.inputColorType : constants.COLORTYPE_COLOR_ALPHA;
- if ([
- constants.COLORTYPE_GRAYSCALE,
- constants.COLORTYPE_COLOR,
- constants.COLORTYPE_COLOR_ALPHA,
- constants.COLORTYPE_ALPHA
- ].indexOf(options.colorType) === -1) {
- throw new Error('option color type:' + options.colorType + ' is not supported at present');
- }
- if ([
- constants.COLORTYPE_GRAYSCALE,
- constants.COLORTYPE_COLOR,
- constants.COLORTYPE_COLOR_ALPHA,
- constants.COLORTYPE_ALPHA
- ].indexOf(options.inputColorType) === -1) {
- throw new Error('option input color type:' + options.inputColorType + ' is not supported at present');
- }
- if (options.bitDepth !== 8 && options.bitDepth !== 16) {
- throw new Error('option bit depth:' + options.bitDepth + ' is not supported at present');
- }
- };
- Packer.prototype.getDeflateOptions = function() {
- return {
- chunkSize: this._options.deflateChunkSize,
- level: this._options.deflateLevel,
- strategy: this._options.deflateStrategy
- };
- };
- Packer.prototype.createDeflate = function() {
- return this._options.deflateFactory(this.getDeflateOptions());
- };
- Packer.prototype.filterData = function(data, width, height) {
-
- var packedData = bitPacker(data, width, height, this._options);
-
- var bpp = constants.COLORTYPE_TO_BPP_MAP[this._options.colorType];
- var filteredData = filter(packedData, width, height, this._options, bpp);
- return filteredData;
- };
- Packer.prototype._packChunk = function(type, data) {
- var len = (data ? data.length : 0);
- var buf = new Buffer(len + 12);
- buf.writeUInt32BE(len, 0);
- buf.writeUInt32BE(type, 4);
- if (data) {
- data.copy(buf, 8);
- }
- buf.writeInt32BE(CrcStream.crc32(buf.slice(4, buf.length - 4)), buf.length - 4);
- return buf;
- };
- Packer.prototype.packGAMA = function(gamma) {
- var buf = new Buffer(4);
- buf.writeUInt32BE(Math.floor(gamma * constants.GAMMA_DIVISION), 0);
- return this._packChunk(constants.TYPE_gAMA, buf);
- };
- Packer.prototype.packIHDR = function(width, height) {
- var buf = new Buffer(13);
- buf.writeUInt32BE(width, 0);
- buf.writeUInt32BE(height, 4);
- buf[8] = this._options.bitDepth;
- buf[9] = this._options.colorType;
- buf[10] = 0;
- buf[11] = 0;
- buf[12] = 0;
- return this._packChunk(constants.TYPE_IHDR, buf);
- };
- Packer.prototype.packIDAT = function(data) {
- return this._packChunk(constants.TYPE_IDAT, data);
- };
- Packer.prototype.packIEND = function() {
- return this._packChunk(constants.TYPE_IEND, null);
- };
- }).call(this,require("buffer").Buffer)
- },{"./bitpacker":2,"./constants":4,"./crc":5,"./filter-pack":6,"buffer":32,"zlib":30}],15:[function(require,module,exports){
- 'use strict';
- module.exports = function paethPredictor(left, above, upLeft) {
- var paeth = left + above - upLeft;
- var pLeft = Math.abs(paeth - left);
- var pAbove = Math.abs(paeth - above);
- var pUpLeft = Math.abs(paeth - upLeft);
- if (pLeft <= pAbove && pLeft <= pUpLeft) {
- return left;
- }
- if (pAbove <= pUpLeft) {
- return above;
- }
- return upLeft;
- };
- },{}],16:[function(require,module,exports){
- 'use strict';
- var util = require('util');
- var zlib = require('zlib');
- var ChunkStream = require('./chunkstream');
- var FilterAsync = require('./filter-parse-async');
- var Parser = require('./parser');
- var bitmapper = require('./bitmapper');
- var formatNormaliser = require('./format-normaliser');
- var ParserAsync = module.exports = function(options) {
- ChunkStream.call(this);
- this._parser = new Parser(options, {
- read: this.read.bind(this),
- error: this._handleError.bind(this),
- metadata: this._handleMetaData.bind(this),
- gamma: this.emit.bind(this, 'gamma'),
- palette: this._handlePalette.bind(this),
- transColor: this._handleTransColor.bind(this),
- finished: this._finished.bind(this),
- inflateData: this._inflateData.bind(this),
- simpleTransparency: this._simpleTransparency.bind(this),
- headersFinished: this._headersFinished.bind(this)
- });
- this._options = options;
- this.writable = true;
- this._parser.start();
- };
- util.inherits(ParserAsync, ChunkStream);
- ParserAsync.prototype._handleError = function(err) {
- this.emit('error', err);
- this.writable = false;
- this.destroy();
- if (this._inflate && this._inflate.destroy) {
- this._inflate.destroy();
- }
- if (this._filter) {
- this._filter.destroy();
-
-
-
- this._filter.on('error', function() {});
- }
- this.errord = true;
- };
- ParserAsync.prototype._inflateData = function(data) {
- if (!this._inflate) {
- if (this._bitmapInfo.interlace) {
- this._inflate = zlib.createInflate();
- this._inflate.on('error', this.emit.bind(this, 'error'));
- this._filter.on('complete', this._complete.bind(this));
- this._inflate.pipe(this._filter);
- }
- else {
- var rowSize = ((this._bitmapInfo.width * this._bitmapInfo.bpp * this._bitmapInfo.depth + 7) >> 3) + 1;
- var imageSize = rowSize * this._bitmapInfo.height;
- var chunkSize = Math.max(imageSize, zlib.Z_MIN_CHUNK);
- this._inflate = zlib.createInflate({ chunkSize: chunkSize });
- var leftToInflate = imageSize;
- var emitError = this.emit.bind(this, 'error');
- this._inflate.on('error', function(err) {
- if (!leftToInflate) {
- return;
- }
- emitError(err);
- });
- this._filter.on('complete', this._complete.bind(this));
- var filterWrite = this._filter.write.bind(this._filter);
- this._inflate.on('data', function(chunk) {
- if (!leftToInflate) {
- return;
- }
- if (chunk.length > leftToInflate) {
- chunk = chunk.slice(0, leftToInflate);
- }
- leftToInflate -= chunk.length;
- filterWrite(chunk);
- });
- this._inflate.on('end', this._filter.end.bind(this._filter));
- }
- }
- this._inflate.write(data);
- };
- ParserAsync.prototype._handleMetaData = function(metaData) {
- this._metaData = metaData;
- this._bitmapInfo = Object.create(metaData);
- this._filter = new FilterAsync(this._bitmapInfo);
- };
- ParserAsync.prototype._handleTransColor = function(transColor) {
- this._bitmapInfo.transColor = transColor;
- };
- ParserAsync.prototype._handlePalette = function(palette) {
- this._bitmapInfo.palette = palette;
- };
- ParserAsync.prototype._simpleTransparency = function() {
- this._metaData.alpha = true;
- };
- ParserAsync.prototype._headersFinished = function() {
-
-
- this.emit('metadata', this._metaData);
- };
- ParserAsync.prototype._finished = function() {
- if (this.errord) {
- return;
- }
- if (!this._inflate) {
- this.emit('error', 'No Inflate block');
- }
- else {
-
- this._inflate.end();
- }
- this.destroySoon();
- };
- ParserAsync.prototype._complete = function(filteredData) {
- if (this.errord) {
- return;
- }
- try {
- var bitmapData = bitmapper.dataToBitMap(filteredData, this._bitmapInfo);
- var normalisedBitmapData = formatNormaliser(bitmapData, this._bitmapInfo);
- bitmapData = null;
- }
- catch (ex) {
- this._handleError(ex);
- return;
- }
- this.emit('parsed', normalisedBitmapData);
- };
- },{"./bitmapper":1,"./chunkstream":3,"./filter-parse-async":7,"./format-normaliser":10,"./parser":18,"util":69,"zlib":30}],17:[function(require,module,exports){
- (function (Buffer){
- 'use strict';
- var hasSyncZlib = true;
- var zlib = require('zlib');
- var inflateSync = require('./sync-inflate');
- if (!zlib.deflateSync) {
- hasSyncZlib = false;
- }
- var SyncReader = require('./sync-reader');
- var FilterSync = require('./filter-parse-sync');
- var Parser = require('./parser');
- var bitmapper = require('./bitmapper');
- var formatNormaliser = require('./format-normaliser');
- module.exports = function(buffer, options) {
- if (!hasSyncZlib) {
- throw new Error('To use the sync capability of this library in old node versions, please pin pngjs to v2.3.0');
- }
- var err;
- function handleError(_err_) {
- err = _err_;
- }
- var metaData;
- function handleMetaData(_metaData_) {
- metaData = _metaData_;
- }
- function handleTransColor(transColor) {
- metaData.transColor = transColor;
- }
- function handlePalette(palette) {
- metaData.palette = palette;
- }
- function handleSimpleTransparency() {
- metaData.alpha = true;
- }
- var gamma;
- function handleGamma(_gamma_) {
- gamma = _gamma_;
- }
- var inflateDataList = [];
- function handleInflateData(inflatedData) {
- inflateDataList.push(inflatedData);
- }
- var reader = new SyncReader(buffer);
- var parser = new Parser(options, {
- read: reader.read.bind(reader),
- error: handleError,
- metadata: handleMetaData,
- gamma: handleGamma,
- palette: handlePalette,
- transColor: handleTransColor,
- inflateData: handleInflateData,
- simpleTransparency: handleSimpleTransparency
- });
- parser.start();
- reader.process();
- if (err) {
- throw err;
- }
-
- var inflateData = Buffer.concat(inflateDataList);
- inflateDataList.length = 0;
- var inflatedData;
- if (metaData.interlace) {
- inflatedData = zlib.inflateSync(inflateData);
- }
- else {
- var rowSize = ((metaData.width * metaData.bpp * metaData.depth + 7) >> 3) + 1;
- var imageSize = rowSize * metaData.height;
- inflatedData = inflateSync(inflateData, { chunkSize: imageSize, maxLength: imageSize });
- }
- inflateData = null;
- if (!inflatedData || !inflatedData.length) {
- throw new Error('bad png - invalid inflate data response');
- }
- var unfilteredData = FilterSync.process(inflatedData, metaData);
- inflateData = null;
- var bitmapData = bitmapper.dataToBitMap(unfilteredData, metaData);
- unfilteredData = null;
- var normalisedBitmapData = formatNormaliser(bitmapData, metaData);
- metaData.data = normalisedBitmapData;
- metaData.gamma = gamma || 0;
- return metaData;
- };
- }).call(this,require("buffer").Buffer)
- },{"./bitmapper":1,"./filter-parse-sync":8,"./format-normaliser":10,"./parser":18,"./sync-inflate":21,"./sync-reader":22,"buffer":32,"zlib":30}],18:[function(require,module,exports){
- (function (Buffer){
- 'use strict';
- var constants = require('./constants');
- var CrcCalculator = require('./crc');
- var Parser = module.exports = function(options, dependencies) {
- this._options = options;
- options.checkCRC = options.checkCRC !== false;
- this._hasIHDR = false;
- this._hasIEND = false;
- this._emittedHeadersFinished = false;
-
- this._palette = [];
- this._colorType = 0;
- this._chunks = {};
- this._chunks[constants.TYPE_IHDR] = this._handleIHDR.bind(this);
- this._chunks[constants.TYPE_IEND] = this._handleIEND.bind(this);
- this._chunks[constants.TYPE_IDAT] = this._handleIDAT.bind(this);
- this._chunks[constants.TYPE_PLTE] = this._handlePLTE.bind(this);
- this._chunks[constants.TYPE_tRNS] = this._handleTRNS.bind(this);
- this._chunks[constants.TYPE_gAMA] = this._handleGAMA.bind(this);
- this.read = dependencies.read;
- this.error = dependencies.error;
- this.metadata = dependencies.metadata;
- this.gamma = dependencies.gamma;
- this.transColor = dependencies.transColor;
- this.palette = dependencies.palette;
- this.parsed = dependencies.parsed;
- this.inflateData = dependencies.inflateData;
- this.finished = dependencies.finished;
- this.simpleTransparency = dependencies.simpleTransparency;
- this.headersFinished = dependencies.headersFinished || function() {};
- };
- Parser.prototype.start = function() {
- this.read(constants.PNG_SIGNATURE.length,
- this._parseSignature.bind(this)
- );
- };
- Parser.prototype._parseSignature = function(data) {
- var signature = constants.PNG_SIGNATURE;
- for (var i = 0; i < signature.length; i++) {
- if (data[i] !== signature[i]) {
- this.error(new Error('Invalid file signature'));
- return;
- }
- }
- this.read(8, this._parseChunkBegin.bind(this));
- };
- Parser.prototype._parseChunkBegin = function(data) {
-
- var length = data.readUInt32BE(0);
-
- var type = data.readUInt32BE(4);
- var name = '';
- for (var i = 4; i < 8; i++) {
- name += String.fromCharCode(data[i]);
- }
-
-
- var ancillary = Boolean(data[4] & 0x20);
-
-
- if (!this._hasIHDR && type !== constants.TYPE_IHDR) {
- this.error(new Error('Expected IHDR on beggining'));
- return;
- }
- this._crc = new CrcCalculator();
- this._crc.write(new Buffer(name));
- if (this._chunks[type]) {
- return this._chunks[type](length);
- }
- if (!ancillary) {
- this.error(new Error('Unsupported critical chunk type ' + name));
- return;
- }
- this.read(length + 4, this._skipChunk.bind(this));
- };
- Parser.prototype._skipChunk = function(/*data*/) {
- this.read(8, this._parseChunkBegin.bind(this));
- };
- Parser.prototype._handleChunkEnd = function() {
- this.read(4, this._parseChunkEnd.bind(this));
- };
- Parser.prototype._parseChunkEnd = function(data) {
- var fileCrc = data.readInt32BE(0);
- var calcCrc = this._crc.crc32();
-
- if (this._options.checkCRC && calcCrc !== fileCrc) {
- this.error(new Error('Crc error - ' + fileCrc + ' - ' + calcCrc));
- return;
- }
- if (!this._hasIEND) {
- this.read(8, this._parseChunkBegin.bind(this));
- }
- };
- Parser.prototype._handleIHDR = function(length) {
- this.read(length, this._parseIHDR.bind(this));
- };
- Parser.prototype._parseIHDR = function(data) {
- this._crc.write(data);
- var width = data.readUInt32BE(0);
- var height = data.readUInt32BE(4);
- var depth = data[8];
- var colorType = data[9];
- var compr = data[10];
- var filter = data[11];
- var interlace = data[12];
-
-
-
-
- if (depth !== 8 && depth !== 4 && depth !== 2 && depth !== 1 && depth !== 16) {
- this.error(new Error('Unsupported bit depth ' + depth));
- return;
- }
- if (!(colorType in constants.COLORTYPE_TO_BPP_MAP)) {
- this.error(new Error('Unsupported color type'));
- return;
- }
- if (compr !== 0) {
- this.error(new Error('Unsupported compression method'));
- return;
- }
- if (filter !== 0) {
- this.error(new Error('Unsupported filter method'));
- return;
- }
- if (interlace !== 0 && interlace !== 1) {
- this.error(new Error('Unsupported interlace method'));
- return;
- }
- this._colorType = colorType;
- var bpp = constants.COLORTYPE_TO_BPP_MAP[this._colorType];
- this._hasIHDR = true;
- this.metadata({
- width: width,
- height: height,
- depth: depth,
- interlace: Boolean(interlace),
- palette: Boolean(colorType & constants.COLORTYPE_PALETTE),
- color: Boolean(colorType & constants.COLORTYPE_COLOR),
- alpha: Boolean(colorType & constants.COLORTYPE_ALPHA),
- bpp: bpp,
- colorType: colorType
- });
- this._handleChunkEnd();
- };
- Parser.prototype._handlePLTE = function(length) {
- this.read(length, this._parsePLTE.bind(this));
- };
- Parser.prototype._parsePLTE = function(data) {
- this._crc.write(data);
- var entries = Math.floor(data.length / 3);
-
- for (var i = 0; i < entries; i++) {
- this._palette.push([
- data[i * 3],
- data[i * 3 + 1],
- data[i * 3 + 2],
- 0xff
- ]);
- }
- this.palette(this._palette);
- this._handleChunkEnd();
- };
- Parser.prototype._handleTRNS = function(length) {
- this.simpleTransparency();
- this.read(length, this._parseTRNS.bind(this));
- };
- Parser.prototype._parseTRNS = function(data) {
- this._crc.write(data);
-
- if (this._colorType === constants.COLORTYPE_PALETTE_COLOR) {
- if (this._palette.length === 0) {
- this.error(new Error('Transparency chunk must be after palette'));
- return;
- }
- if (data.length > this._palette.length) {
- this.error(new Error('More transparent colors than palette size'));
- return;
- }
- for (var i = 0; i < data.length; i++) {
- this._palette[i][3] = data[i];
- }
- this.palette(this._palette);
- }
-
-
- if (this._colorType === constants.COLORTYPE_GRAYSCALE) {
-
- this.transColor([data.readUInt16BE(0)]);
- }
- if (this._colorType === constants.COLORTYPE_COLOR) {
- this.transColor([data.readUInt16BE(0), data.readUInt16BE(2), data.readUInt16BE(4)]);
- }
- this._handleChunkEnd();
- };
- Parser.prototype._handleGAMA = function(length) {
- this.read(length, this._parseGAMA.bind(this));
- };
- Parser.prototype._parseGAMA = function(data) {
- this._crc.write(data);
- this.gamma(data.readUInt32BE(0) / constants.GAMMA_DIVISION);
- this._handleChunkEnd();
- };
- Parser.prototype._handleIDAT = function(length) {
- if (!this._emittedHeadersFinished) {
- this._emittedHeadersFinished = true;
- this.headersFinished();
- }
- this.read(-length, this._parseIDAT.bind(this, length));
- };
- Parser.prototype._parseIDAT = function(length, data) {
- this._crc.write(data);
- if (this._colorType === constants.COLORTYPE_PALETTE_COLOR && this._palette.length === 0) {
- throw new Error('Expected palette not found');
- }
- this.inflateData(data);
- var leftOverLength = length - data.length;
- if (leftOverLength > 0) {
- this._handleIDAT(leftOverLength);
- }
- else {
- this._handleChunkEnd();
- }
- };
- Parser.prototype._handleIEND = function(length) {
- this.read(length, this._parseIEND.bind(this));
- };
- Parser.prototype._parseIEND = function(data) {
- this._crc.write(data);
- this._hasIEND = true;
- this._handleChunkEnd();
- if (this.finished) {
- this.finished();
- }
- };
- }).call(this,require("buffer").Buffer)
- },{"./constants":4,"./crc":5,"buffer":32}],19:[function(require,module,exports){
- 'use strict';
- var parse = require('./parser-sync');
- var pack = require('./packer-sync');
- exports.read = function(buffer, options) {
- return parse(buffer, options || {});
- };
- exports.write = function(png, options) {
- return pack(png, options);
- };
- },{"./packer-sync":13,"./parser-sync":17}],20:[function(require,module,exports){
- (function (process,Buffer){
- 'use strict';
- var util = require('util');
- var Stream = require('stream');
- var Parser = require('./parser-async');
- var Packer = require('./packer-async');
- var PNGSync = require('./png-sync');
- var PNG = exports.PNG = function(options) {
- Stream.call(this);
- options = options || {};
-
- this.width = options.width | 0;
- this.height = options.height | 0;
- this.data = this.width > 0 && this.height > 0 ?
- new Buffer(4 * this.width * this.height) : null;
- if (options.fill && this.data) {
- this.data.fill(0);
- }
- this.gamma = 0;
- this.readable = this.writable = true;
- this._parser = new Parser(options);
- this._parser.on('error', this.emit.bind(this, 'error'));
- this._parser.on('close', this._handleClose.bind(this));
- this._parser.on('metadata', this._metadata.bind(this));
- this._parser.on('gamma', this._gamma.bind(this));
- this._parser.on('parsed', function(data) {
- this.data = data;
- this.emit('parsed', data);
- }.bind(this));
- this._packer = new Packer(options);
- this._packer.on('data', this.emit.bind(this, 'data'));
- this._packer.on('end', this.emit.bind(this, 'end'));
- this._parser.on('close', this._handleClose.bind(this));
- this._packer.on('error', this.emit.bind(this, 'error'));
- };
- util.inherits(PNG, Stream);
- PNG.sync = PNGSync;
- PNG.prototype.pack = function() {
- if (!this.data || !this.data.length) {
- this.emit('error', 'No data provided');
- return this;
- }
- process.nextTick(function() {
- this._packer.pack(this.data, this.width, this.height, this.gamma);
- }.bind(this));
- return this;
- };
- PNG.prototype.parse = function(data, callback) {
- if (callback) {
- var onParsed, onError;
- onParsed = function(parsedData) {
- this.removeListener('error', onError);
- this.data = parsedData;
- callback(null, this);
- }.bind(this);
- onError = function(err) {
- this.removeListener('parsed', onParsed);
- callback(err, null);
- }.bind(this);
- this.once('parsed', onParsed);
- this.once('error', onError);
- }
- this.end(data);
- return this;
- };
- PNG.prototype.write = function(data) {
- this._parser.write(data);
- return true;
- };
- PNG.prototype.end = function(data) {
- this._parser.end(data);
- };
- PNG.prototype._metadata = function(metadata) {
- this.width = metadata.width;
- this.height = metadata.height;
- this.emit('metadata', metadata);
- };
- PNG.prototype._gamma = function(gamma) {
- this.gamma = gamma;
- };
- PNG.prototype._handleClose = function() {
- if (!this._parser.writable && !this._packer.readable) {
- this.emit('close');
- }
- };
- PNG.bitblt = function(src, dst, srcX, srcY, width, height, deltaX, deltaY) {
-
-
- srcX |= 0;
- srcY |= 0;
- width |= 0;
- height |= 0;
- deltaX |= 0;
- deltaY |= 0;
-
- if (srcX > src.width || srcY > src.height || srcX + width > src.width || srcY + height > src.height) {
- throw new Error('bitblt reading outside image');
- }
- if (deltaX > dst.width || deltaY > dst.height || deltaX + width > dst.width || deltaY + height > dst.height) {
- throw new Error('bitblt writing outside image');
- }
- for (var y = 0; y < height; y++) {
- src.data.copy(dst.data,
- ((deltaY + y) * dst.width + deltaX) << 2,
- ((srcY + y) * src.width + srcX) << 2,
- ((srcY + y) * src.width + srcX + width) << 2
- );
- }
- };
- PNG.prototype.bitblt = function(dst, srcX, srcY, width, height, deltaX, deltaY) {
- PNG.bitblt(this, dst, srcX, srcY, width, height, deltaX, deltaY);
- return this;
- };
- PNG.adjustGamma = function(src) {
- if (src.gamma) {
- for (var y = 0; y < src.height; y++) {
- for (var x = 0; x < src.width; x++) {
- var idx = (src.width * y + x) << 2;
- for (var i = 0; i < 3; i++) {
- var sample = src.data[idx + i] / 255;
- sample = Math.pow(sample, 1 / 2.2 / src.gamma);
- src.data[idx + i] = Math.round(sample * 255);
- }
- }
- }
- src.gamma = 0;
- }
- };
- PNG.prototype.adjustGamma = function() {
- PNG.adjustGamma(this);
- };
- }).call(this,require('_process'),require("buffer").Buffer)
- },{"./packer-async":12,"./parser-async":16,"./png-sync":19,"_process":51,"buffer":32,"stream":64,"util":69}],21:[function(require,module,exports){
- (function (process,Buffer){
- 'use strict';
- var assert = require('assert').ok;
- var zlib = require('zlib');
- var util = require('util');
- var kMaxLength = require('buffer').kMaxLength;
- function Inflate(opts) {
- if (!(this instanceof Inflate)) {
- return new Inflate(opts);
- }
- if (opts && opts.chunkSize < zlib.Z_MIN_CHUNK) {
- opts.chunkSize = zlib.Z_MIN_CHUNK;
- }
- zlib.Inflate.call(this, opts);
-
- this._offset = this._offset === undefined ? this._outOffset : this._offset;
- this._buffer = this._buffer || this._outBuffer;
- if (opts && opts.maxLength != null) {
- this._maxLength = opts.maxLength;
- }
- }
- function createInflate(opts) {
- return new Inflate(opts);
- }
- function _close(engine, callback) {
- if (callback) {
- process.nextTick(callback);
- }
-
- if (!engine._handle) {
- return;
- }
- engine._handle.close();
- engine._handle = null;
- }
- Inflate.prototype._processChunk = function(chunk, flushFlag, asyncCb) {
- if (typeof asyncCb === 'function') {
- return zlib.Inflate._processChunk.call(this, chunk, flushFlag, asyncCb);
- }
- var self = this;
- var availInBefore = chunk && chunk.length;
- var availOutBefore = this._chunkSize - this._offset;
- var leftToInflate = this._maxLength;
- var inOff = 0;
- var buffers = [];
- var nread = 0;
- var error;
- this.on('error', function(err) {
- error = err;
- });
- function handleChunk(availInAfter, availOutAfter) {
- if (self._hadError) {
- return;
- }
- var have = availOutBefore - availOutAfter;
- assert(have >= 0, 'have should not go down');
- if (have > 0) {
- var out = self._buffer.slice(self._offset, self._offset + have);
- self._offset += have;
- if (out.length > leftToInflate) {
- out = out.slice(0, leftToInflate);
- }
- buffers.push(out);
- nread += out.length;
- leftToInflate -= out.length;
- if (leftToInflate === 0) {
- return false;
- }
- }
- if (availOutAfter === 0 || self._offset >= self._chunkSize) {
- availOutBefore = self._chunkSize;
- self._offset = 0;
- self._buffer = Buffer.allocUnsafe(self._chunkSize);
- }
- if (availOutAfter === 0) {
- inOff += (availInBefore - availInAfter);
- availInBefore = availInAfter;
- return true;
- }
- return false;
- }
- assert(this._handle, 'zlib binding closed');
- do {
- var res = this._handle.writeSync(flushFlag,
- chunk,
- inOff,
- availInBefore,
- this._buffer,
- this._offset,
- availOutBefore);
-
- res = res || this._writeState;
- } while (!this._hadError && handleChunk(res[0], res[1]));
- if (this._hadError) {
- throw error;
- }
- if (nread >= kMaxLength) {
- _close(this);
- throw new RangeError('Cannot create final Buffer. It would be larger than 0x' + kMaxLength.toString(16) + ' bytes');
- }
- var buf = Buffer.concat(buffers, nread);
- _close(this);
- return buf;
- };
- util.inherits(Inflate, zlib.Inflate);
- function zlibBufferSync(engine, buffer) {
- if (typeof buffer === 'string') {
- buffer = Buffer.from(buffer);
- }
- if (!(buffer instanceof Buffer)) {
- throw new TypeError('Not a string or buffer');
- }
- var flushFlag = engine._finishFlushFlag;
- if (flushFlag == null) {
- flushFlag = zlib.Z_FINISH;
- }
- return engine._processChunk(buffer, flushFlag);
- }
- function inflateSync(buffer, opts) {
- return zlibBufferSync(new Inflate(opts), buffer);
- }
- module.exports = exports = inflateSync;
- exports.Inflate = Inflate;
- exports.createInflate = createInflate;
- exports.inflateSync = inflateSync;
- }).call(this,require('_process'),require("buffer").Buffer)
- },{"_process":51,"assert":23,"buffer":32,"util":69,"zlib":30}],22:[function(require,module,exports){
- 'use strict';
- var SyncReader = module.exports = function(buffer) {
- this._buffer = buffer;
- this._reads = [];
- };
- SyncReader.prototype.read = function(length, callback) {
- this._reads.push({
- length: Math.abs(length),
- allowLess: length < 0,
- func: callback
- });
- };
- SyncReader.prototype.process = function() {
-
- while (this._reads.length > 0 && this._buffer.length) {
- var read = this._reads[0];
- if (this._buffer.length && (this._buffer.length >= read.length || read.allowLess)) {
-
- this._reads.shift();
- var buf = this._buffer;
- this._buffer = buf.slice(read.length);
- read.func.call(this, buf.slice(0, read.length));
- }
- else {
- break;
- }
- }
- if (this._reads.length > 0) {
- return new Error('There are some read requests waitng on finished stream');
- }
- if (this._buffer.length > 0) {
- return new Error('unrecognised content at end of stream');
- }
- };
- },{}],23:[function(require,module,exports){
- (function (global){
- 'use strict';
- function compare(a, b) {
- if (a === b) {
- return 0;
- }
- var x = a.length;
- var y = b.length;
- for (var i = 0, len = Math.min(x, y); i < len; ++i) {
- if (a[i] !== b[i]) {
- x = a[i];
- y = b[i];
- break;
- }
- }
- if (x < y) {
- return -1;
- }
- if (y < x) {
- return 1;
- }
- return 0;
- }
- function isBuffer(b) {
- if (global.Buffer && typeof global.Buffer.isBuffer === 'function') {
- return global.Buffer.isBuffer(b);
- }
- return !!(b != null && b._isBuffer);
- }
- var util = require('util/');
- var hasOwn = Object.prototype.hasOwnProperty;
- var pSlice = Array.prototype.slice;
- var functionsHaveNames = (function () {
- return function foo() {}.name === 'foo';
- }());
- function pToString (obj) {
- return Object.prototype.toString.call(obj);
- }
- function isView(arrbuf) {
- if (isBuffer(arrbuf)) {
- return false;
- }
- if (typeof global.ArrayBuffer !== 'function') {
- return false;
- }
- if (typeof ArrayBuffer.isView === 'function') {
- return ArrayBuffer.isView(arrbuf);
- }
- if (!arrbuf) {
- return false;
- }
- if (arrbuf instanceof DataView) {
- return true;
- }
- if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) {
- return true;
- }
- return false;
- }
- var assert = module.exports = ok;
- var regex = /\s*function\s+([^\(\s]*)\s*/;
- function getName(func) {
- if (!util.isFunction(func)) {
- return;
- }
- if (functionsHaveNames) {
- return func.name;
- }
- var str = func.toString();
- var match = str.match(regex);
- return match && match[1];
- }
- assert.AssertionError = function AssertionError(options) {
- this.name = 'AssertionError';
- this.actual = options.actual;
- this.expected = options.expected;
- this.operator = options.operator;
- if (options.message) {
- this.message = options.message;
- this.generatedMessage = false;
- } else {
- this.message = getMessage(this);
- this.generatedMessage = true;
- }
- var stackStartFunction = options.stackStartFunction || fail;
- if (Error.captureStackTrace) {
- Error.captureStackTrace(this, stackStartFunction);
- } else {
-
- var err = new Error();
- if (err.stack) {
- var out = err.stack;
-
- var fn_name = getName(stackStartFunction);
- var idx = out.indexOf('\n' + fn_name);
- if (idx >= 0) {
-
-
- var next_line = out.indexOf('\n', idx + 1);
- out = out.substring(next_line + 1);
- }
- this.stack = out;
- }
- }
- };
- util.inherits(assert.AssertionError, Error);
- function truncate(s, n) {
- if (typeof s === 'string') {
- return s.length < n ? s : s.slice(0, n);
- } else {
- return s;
- }
- }
- function inspect(something) {
- if (functionsHaveNames || !util.isFunction(something)) {
- return util.inspect(something);
- }
- var rawname = getName(something);
- var name = rawname ? ': ' + rawname : '';
- return '[Function' + name + ']';
- }
- function getMessage(self) {
- return truncate(inspect(self.actual), 128) + ' ' +
- self.operator + ' ' +
- truncate(inspect(self.expected), 128);
- }
- function fail(actual, expected, message, operator, stackStartFunction) {
- throw new assert.AssertionError({
- message: message,
- actual: actual,
- expected: expected,
- operator: operator,
- stackStartFunction: stackStartFunction
- });
- }
- assert.fail = fail;
- function ok(value, message) {
- if (!value) fail(value, true, message, '==', assert.ok);
- }
- assert.ok = ok;
- assert.equal = function equal(actual, expected, message) {
- if (actual != expected) fail(actual, expected, message, '==', assert.equal);
- };
- assert.notEqual = function notEqual(actual, expected, message) {
- if (actual == expected) {
- fail(actual, expected, message, '!=', assert.notEqual);
- }
- };
- assert.deepEqual = function deepEqual(actual, expected, message) {
- if (!_deepEqual(actual, expected, false)) {
- fail(actual, expected, message, 'deepEqual', assert.deepEqual);
- }
- };
- assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) {
- if (!_deepEqual(actual, expected, true)) {
- fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual);
- }
- };
- function _deepEqual(actual, expected, strict, memos) {
-
- if (actual === expected) {
- return true;
- } else if (isBuffer(actual) && isBuffer(expected)) {
- return compare(actual, expected) === 0;
-
-
- } else if (util.isDate(actual) && util.isDate(expected)) {
- return actual.getTime() === expected.getTime();
-
-
-
- } else if (util.isRegExp(actual) && util.isRegExp(expected)) {
- return actual.source === expected.source &&
- actual.global === expected.global &&
- actual.multiline === expected.multiline &&
- actual.lastIndex === expected.lastIndex &&
- actual.ignoreCase === expected.ignoreCase;
-
-
- } else if ((actual === null || typeof actual !== 'object') &&
- (expected === null || typeof expected !== 'object')) {
- return strict ? actual === expected : actual == expected;
-
-
-
-
-
-
- } else if (isView(actual) && isView(expected) &&
- pToString(actual) === pToString(expected) &&
- !(actual instanceof Float32Array ||
- actual instanceof Float64Array)) {
- return compare(new Uint8Array(actual.buffer),
- new Uint8Array(expected.buffer)) === 0;
-
-
-
-
-
-
- } else if (isBuffer(actual) !== isBuffer(expected)) {
- return false;
- } else {
- memos = memos || {actual: [], expected: []};
- var actualIndex = memos.actual.indexOf(actual);
- if (actualIndex !== -1) {
- if (actualIndex === memos.expected.indexOf(expected)) {
- return true;
- }
- }
- memos.actual.push(actual);
- memos.expected.push(expected);
- return objEquiv(actual, expected, strict, memos);
- }
- }
- function isArguments(object) {
- return Object.prototype.toString.call(object) == '[object Arguments]';
- }
- function objEquiv(a, b, strict, actualVisitedObjects) {
- if (a === null || a === undefined || b === null || b === undefined)
- return false;
-
- if (util.isPrimitive(a) || util.isPrimitive(b))
- return a === b;
- if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b))
- return false;
- var aIsArgs = isArguments(a);
- var bIsArgs = isArguments(b);
- if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
- return false;
- if (aIsArgs) {
- a = pSlice.call(a);
- b = pSlice.call(b);
- return _deepEqual(a, b, strict);
- }
- var ka = objectKeys(a);
- var kb = objectKeys(b);
- var key, i;
-
-
- if (ka.length !== kb.length)
- return false;
-
- ka.sort();
- kb.sort();
-
- for (i = ka.length - 1; i >= 0; i--) {
- if (ka[i] !== kb[i])
- return false;
- }
-
-
- for (i = ka.length - 1; i >= 0; i--) {
- key = ka[i];
- if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects))
- return false;
- }
- return true;
- }
- assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
- if (_deepEqual(actual, expected, false)) {
- fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
- }
- };
- assert.notDeepStrictEqual = notDeepStrictEqual;
- function notDeepStrictEqual(actual, expected, message) {
- if (_deepEqual(actual, expected, true)) {
- fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual);
- }
- }
- assert.strictEqual = function strictEqual(actual, expected, message) {
- if (actual !== expected) {
- fail(actual, expected, message, '===', assert.strictEqual);
- }
- };
- assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
- if (actual === expected) {
- fail(actual, expected, message, '!==', assert.notStrictEqual);
- }
- };
- function expectedException(actual, expected) {
- if (!actual || !expected) {
- return false;
- }
- if (Object.prototype.toString.call(expected) == '[object RegExp]') {
- return expected.test(actual);
- }
- try {
- if (actual instanceof expected) {
- return true;
- }
- } catch (e) {
-
- }
- if (Error.isPrototypeOf(expected)) {
- return false;
- }
- return expected.call({}, actual) === true;
- }
- function _tryBlock(block) {
- var error;
- try {
- block();
- } catch (e) {
- error = e;
- }
- return error;
- }
- function _throws(shouldThrow, block, expected, message) {
- var actual;
- if (typeof block !== 'function') {
- throw new TypeError('"block" argument must be a function');
- }
- if (typeof expected === 'string') {
- message = expected;
- expected = null;
- }
- actual = _tryBlock(block);
- message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
- (message ? ' ' + message : '.');
- if (shouldThrow && !actual) {
- fail(actual, expected, 'Missing expected exception' + message);
- }
- var userProvidedMessage = typeof message === 'string';
- var isUnwantedException = !shouldThrow && util.isError(actual);
- var isUnexpectedException = !shouldThrow && actual && !expected;
- if ((isUnwantedException &&
- userProvidedMessage &&
- expectedException(actual, expected)) ||
- isUnexpectedException) {
- fail(actual, expected, 'Got unwanted exception' + message);
- }
- if ((shouldThrow && actual && expected &&
- !expectedException(actual, expected)) || (!shouldThrow && actual)) {
- throw actual;
- }
- }
- assert.throws = function(block, /*optional*/error, /*optional*/message) {
- _throws(true, block, error, message);
- };
- assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) {
- _throws(false, block, error, message);
- };
- assert.ifError = function(err) { if (err) throw err; };
- var objectKeys = Object.keys || function (obj) {
- var keys = [];
- for (var key in obj) {
- if (hasOwn.call(obj, key)) keys.push(key);
- }
- return keys;
- };
- }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
- },{"util/":26}],24:[function(require,module,exports){
- if (typeof Object.create === 'function') {
-
- 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 {
-
- module.exports = function inherits(ctor, superCtor) {
- ctor.super_ = superCtor
- var TempCtor = function () {}
- TempCtor.prototype = superCtor.prototype
- ctor.prototype = new TempCtor()
- ctor.prototype.constructor = ctor
- }
- }
- },{}],25:[function(require,module,exports){
- module.exports = function isBuffer(arg) {
- return arg && typeof arg === 'object'
- && typeof arg.copy === 'function'
- && typeof arg.fill === 'function'
- && typeof arg.readUInt8 === 'function';
- }
- },{}],26:[function(require,module,exports){
- (function (process,global){
- var formatRegExp = /%[sdj%]/g;
- exports.format = function(f) {
- if (!isString(f)) {
- var objects = [];
- for (var i = 0; i < arguments.length; i++) {
- objects.push(inspect(arguments[i]));
- }
- return objects.join(' ');
- }
- var i = 1;
- var args = arguments;
- var len = args.length;
- var str = String(f).replace(formatRegExp, function(x) {
- if (x === '%%') return '%';
- if (i >= len) return x;
- switch (x) {
- case '%s': return String(args[i++]);
- case '%d': return Number(args[i++]);
- case '%j':
- try {
- return JSON.stringify(args[i++]);
- } catch (_) {
- return '[Circular]';
- }
- default:
- return x;
- }
- });
- for (var x = args[i]; i < len; x = args[++i]) {
- if (isNull(x) || !isObject(x)) {
- str += ' ' + x;
- } else {
- str += ' ' + inspect(x);
- }
- }
- return str;
- };
- exports.deprecate = function(fn, msg) {
-
- if (isUndefined(global.process)) {
- return function() {
- return exports.deprecate(fn, msg).apply(this, arguments);
- };
- }
- if (process.noDeprecation === true) {
- return fn;
- }
- var warned = false;
- function deprecated() {
- if (!warned) {
- if (process.throwDeprecation) {
- throw new Error(msg);
- } else if (process.traceDeprecation) {
- console.trace(msg);
- } else {
- console.error(msg);
- }
- warned = true;
- }
- return fn.apply(this, arguments);
- }
- return deprecated;
- };
- var debugs = {};
- var debugEnviron;
- exports.debuglog = function(set) {
- if (isUndefined(debugEnviron))
- debugEnviron = process.env.NODE_DEBUG || '';
- set = set.toUpperCase();
- if (!debugs[set]) {
- if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
- var pid = process.pid;
- debugs[set] = function() {
- var msg = exports.format.apply(exports, arguments);
- console.error('%s %d: %s', set, pid, msg);
- };
- } else {
- debugs[set] = function() {};
- }
- }
- return debugs[set];
- };
- /**
- * Echos the value of a value. Trys to print the value out
- * in the best way possible given the different types.
- *
- * @param {Object} obj The object to print out.
- * @param {Object} opts Optional options object that alters the output.
- */
- /* legacy: obj, showHidden, depth, colors*/
- function inspect(obj, opts) {
- // default options
- var ctx = {
- seen: [],
- stylize: stylizeNoColor
- };
- // legacy...
- if (arguments.length >= 3) ctx.depth = arguments[2];
- if (arguments.length >= 4) ctx.colors = arguments[3];
- if (isBoolean(opts)) {
- // legacy...
- ctx.showHidden = opts;
- } else if (opts) {
- // got an "options" object
- exports._extend(ctx, opts);
- }
- // set default options
- if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
- if (isUndefined(ctx.depth)) ctx.depth = 2;
- if (isUndefined(ctx.colors)) ctx.colors = false;
- if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
- if (ctx.colors) ctx.stylize = stylizeWithColor;
- return formatValue(ctx, obj, ctx.depth);
- }
- exports.inspect = inspect;
- // http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
- inspect.colors = {
- 'bold' : [1, 22],
- 'italic' : [3, 23],
- 'underline' : [4, 24],
- 'inverse' : [7, 27],
- 'white' : [37, 39],
- 'grey' : [90, 39],
- 'black' : [30, 39],
- 'blue' : [34, 39],
- 'cyan' : [36, 39],
- 'green' : [32, 39],
- 'magenta' : [35, 39],
- 'red' : [31, 39],
- 'yellow' : [33, 39]
- };
- inspect.styles = {
- 'special': 'cyan',
- 'number': 'yellow',
- 'boolean': 'yellow',
- 'undefined': 'grey',
- 'null': 'bold',
- 'string': 'green',
- 'date': 'magenta',
-
- 'regexp': 'red'
- };
- function stylizeWithColor(str, styleType) {
- var style = inspect.styles[styleType];
- if (style) {
- return '\u001b[' + inspect.colors[style][0] + 'm' + str +
- '\u001b[' + inspect.colors[style][1] + 'm';
- } else {
- return str;
- }
- }
- function stylizeNoColor(str, styleType) {
- return str;
- }
- function arrayToHash(array) {
- var hash = {};
- array.forEach(function(val, idx) {
- hash[val] = true;
- });
- return hash;
- }
- function formatValue(ctx, value, recurseTimes) {
-
-
- if (ctx.customInspect &&
- value &&
- isFunction(value.inspect) &&
-
- value.inspect !== exports.inspect &&
-
- !(value.constructor && value.constructor.prototype === value)) {
- var ret = value.inspect(recurseTimes, ctx);
- if (!isString(ret)) {
- ret = formatValue(ctx, ret, recurseTimes);
- }
- return ret;
- }
-
- var primitive = formatPrimitive(ctx, value);
- if (primitive) {
- return primitive;
- }
-
- var keys = Object.keys(value);
- var visibleKeys = arrayToHash(keys);
- if (ctx.showHidden) {
- keys = Object.getOwnPropertyNames(value);
- }
-
-
- if (isError(value)
- && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
- return formatError(value);
- }
-
- if (keys.length === 0) {
- if (isFunction(value)) {
- var name = value.name ? ': ' + value.name : '';
- return ctx.stylize('[Function' + name + ']', 'special');
- }
- if (isRegExp(value)) {
- return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
- }
- if (isDate(value)) {
- return ctx.stylize(Date.prototype.toString.call(value), 'date');
- }
- if (isError(value)) {
- return formatError(value);
- }
- }
- var base = '', array = false, braces = ['{', '}'];
-
- if (isArray(value)) {
- array = true;
- braces = ['[', ']'];
- }
-
- if (isFunction(value)) {
- var n = value.name ? ': ' + value.name : '';
- base = ' [Function' + n + ']';
- }
-
- if (isRegExp(value)) {
- base = ' ' + RegExp.prototype.toString.call(value);
- }
-
- if (isDate(value)) {
- base = ' ' + Date.prototype.toUTCString.call(value);
- }
-
- if (isError(value)) {
- base = ' ' + formatError(value);
- }
- if (keys.length === 0 && (!array || value.length == 0)) {
- return braces[0] + base + braces[1];
- }
- if (recurseTimes < 0) {
- if (isRegExp(value)) {
- return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
- } else {
- return ctx.stylize('[Object]', 'special');
- }
- }
- ctx.seen.push(value);
- var output;
- if (array) {
- output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
- } else {
- output = keys.map(function(key) {
- return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
- });
- }
- ctx.seen.pop();
- return reduceToSingleString(output, base, braces);
- }
- function formatPrimitive(ctx, value) {
- if (isUndefined(value))
- return ctx.stylize('undefined', 'undefined');
- if (isString(value)) {
- var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
- .replace(/'/g, "\\'")
- .replace(/\\"/g, '"') + '\'';
- return ctx.stylize(simple, 'string');
- }
- if (isNumber(value))
- return ctx.stylize('' + value, 'number');
- if (isBoolean(value))
- return ctx.stylize('' + value, 'boolean');
-
- if (isNull(value))
- return ctx.stylize('null', 'null');
- }
- function formatError(value) {
- return '[' + Error.prototype.toString.call(value) + ']';
- }
- function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
- var output = [];
- for (var i = 0, l = value.length; i < l; ++i) {
- if (hasOwnProperty(value, String(i))) {
- output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
- String(i), true));
- } else {
- output.push('');
- }
- }
- keys.forEach(function(key) {
- if (!key.match(/^\d+$/)) {
- output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
- key, true));
- }
- });
- return output;
- }
- function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
- var name, str, desc;
- desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
- if (desc.get) {
- if (desc.set) {
- str = ctx.stylize('[Getter/Setter]', 'special');
- } else {
- str = ctx.stylize('[Getter]', 'special');
- }
- } else {
- if (desc.set) {
- str = ctx.stylize('[Setter]', 'special');
- }
- }
- if (!hasOwnProperty(visibleKeys, key)) {
- name = '[' + key + ']';
- }
- if (!str) {
- if (ctx.seen.indexOf(desc.value) < 0) {
- if (isNull(recurseTimes)) {
- str = formatValue(ctx, desc.value, null);
- } else {
- str = formatValue(ctx, desc.value, recurseTimes - 1);
- }
- if (str.indexOf('\n') > -1) {
- if (array) {
- str = str.split('\n').map(function(line) {
- return ' ' + line;
- }).join('\n').substr(2);
- } else {
- str = '\n' + str.split('\n').map(function(line) {
- return ' ' + line;
- }).join('\n');
- }
- }
- } else {
- str = ctx.stylize('[Circular]', 'special');
- }
- }
- if (isUndefined(name)) {
- if (array && key.match(/^\d+$/)) {
- return str;
- }
- name = JSON.stringify('' + key);
- if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
- name = name.substr(1, name.length - 2);
- name = ctx.stylize(name, 'name');
- } else {
- name = name.replace(/'/g, "\\'")
- .replace(/\\"/g, '"')
- .replace(/(^"|"$)/g, "'");
- name = ctx.stylize(name, 'string');
- }
- }
- return name + ': ' + str;
- }
- function reduceToSingleString(output, base, braces) {
- var numLinesEst = 0;
- var length = output.reduce(function(prev, cur) {
- numLinesEst++;
- if (cur.indexOf('\n') >= 0) numLinesEst++;
- return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
- }, 0);
- if (length > 60) {
- return braces[0] +
- (base === '' ? '' : base + '\n ') +
- ' ' +
- output.join(',\n ') +
- ' ' +
- braces[1];
- }
- return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
- }
- function isArray(ar) {
- return Array.isArray(ar);
- }
- exports.isArray = isArray;
- function isBoolean(arg) {
- return typeof arg === 'boolean';
- }
- exports.isBoolean = isBoolean;
- function isNull(arg) {
- return arg === null;
- }
- exports.isNull = isNull;
- function isNullOrUndefined(arg) {
- return arg == null;
- }
- exports.isNullOrUndefined = isNullOrUndefined;
- function isNumber(arg) {
- return typeof arg === 'number';
- }
- exports.isNumber = isNumber;
- function isString(arg) {
- return typeof arg === 'string';
- }
- exports.isString = isString;
- function isSymbol(arg) {
- return typeof arg === 'symbol';
- }
- exports.isSymbol = isSymbol;
- function isUndefined(arg) {
- return arg === void 0;
- }
- exports.isUndefined = isUndefined;
- function isRegExp(re) {
- return isObject(re) && objectToString(re) === '[object RegExp]';
- }
- exports.isRegExp = isRegExp;
- function isObject(arg) {
- return typeof arg === 'object' && arg !== null;
- }
- exports.isObject = isObject;
- function isDate(d) {
- return isObject(d) && objectToString(d) === '[object Date]';
- }
- exports.isDate = isDate;
- function isError(e) {
- return isObject(e) &&
- (objectToString(e) === '[object Error]' || e instanceof Error);
- }
- exports.isError = isError;
- function isFunction(arg) {
- return typeof arg === 'function';
- }
- exports.isFunction = isFunction;
- function isPrimitive(arg) {
- return arg === null ||
- typeof arg === 'boolean' ||
- typeof arg === 'number' ||
- typeof arg === 'string' ||
- typeof arg === 'symbol' ||
- typeof arg === 'undefined';
- }
- exports.isPrimitive = isPrimitive;
- exports.isBuffer = require('./support/isBuffer');
- function objectToString(o) {
- return Object.prototype.toString.call(o);
- }
- function pad(n) {
- return n < 10 ? '0' + n.toString(10) : n.toString(10);
- }
- var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
- 'Oct', 'Nov', 'Dec'];
- function timestamp() {
- var d = new Date();
- var time = [pad(d.getHours()),
- pad(d.getMinutes()),
- pad(d.getSeconds())].join(':');
- return [d.getDate(), months[d.getMonth()], time].join(' ');
- }
- exports.log = function() {
- console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
- };
- exports.inherits = require('inherits');
- exports._extend = function(origin, add) {
-
- if (!add || !isObject(add)) return origin;
- var keys = Object.keys(add);
- var i = keys.length;
- while (i--) {
- origin[keys[i]] = add[keys[i]];
- }
- return origin;
- };
- function hasOwnProperty(obj, prop) {
- return Object.prototype.hasOwnProperty.call(obj, prop);
- }
- }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
- },{"./support/isBuffer":25,"_process":51,"inherits":24}],27:[function(require,module,exports){
- 'use strict'
- exports.byteLength = byteLength
- exports.toByteArray = toByteArray
- exports.fromByteArray = fromByteArray
- var lookup = []
- var revLookup = []
- var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
- var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
- for (var i = 0, len = code.length; i < len; ++i) {
- lookup[i] = code[i]
- revLookup[code.charCodeAt(i)] = i
- }
- revLookup['-'.charCodeAt(0)] = 62
- revLookup['_'.charCodeAt(0)] = 63
- function getLens (b64) {
- var len = b64.length
- if (len % 4 > 0) {
- throw new Error('Invalid string. Length must be a multiple of 4')
- }
-
-
- var validLen = b64.indexOf('=')
- if (validLen === -1) validLen = len
- var placeHoldersLen = validLen === len
- ? 0
- : 4 - (validLen % 4)
- return [validLen, placeHoldersLen]
- }
- function byteLength (b64) {
- var lens = getLens(b64)
- var validLen = lens[0]
- var placeHoldersLen = lens[1]
- return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
- }
- function _byteLength (b64, validLen, placeHoldersLen) {
- return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
- }
- function toByteArray (b64) {
- var tmp
- var lens = getLens(b64)
- var validLen = lens[0]
- var placeHoldersLen = lens[1]
- var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))
- var curByte = 0
-
- var len = placeHoldersLen > 0
- ? validLen - 4
- : validLen
- for (var i = 0; i < len; i += 4) {
- tmp =
- (revLookup[b64.charCodeAt(i)] << 18) |
- (revLookup[b64.charCodeAt(i + 1)] << 12) |
- (revLookup[b64.charCodeAt(i + 2)] << 6) |
- revLookup[b64.charCodeAt(i + 3)]
- arr[curByte++] = (tmp >> 16) & 0xFF
- arr[curByte++] = (tmp >> 8) & 0xFF
- arr[curByte++] = tmp & 0xFF
- }
- if (placeHoldersLen === 2) {
- tmp =
- (revLookup[b64.charCodeAt(i)] << 2) |
- (revLookup[b64.charCodeAt(i + 1)] >> 4)
- arr[curByte++] = tmp & 0xFF
- }
- if (placeHoldersLen === 1) {
- tmp =
- (revLookup[b64.charCodeAt(i)] << 10) |
- (revLookup[b64.charCodeAt(i + 1)] << 4) |
- (revLookup[b64.charCodeAt(i + 2)] >> 2)
- arr[curByte++] = (tmp >> 8) & 0xFF
- arr[curByte++] = tmp & 0xFF
- }
- return arr
- }
- function tripletToBase64 (num) {
- return lookup[num >> 18 & 0x3F] +
- lookup[num >> 12 & 0x3F] +
- lookup[num >> 6 & 0x3F] +
- lookup[num & 0x3F]
- }
- function encodeChunk (uint8, start, end) {
- var tmp
- var output = []
- for (var i = start; i < end; i += 3) {
- tmp =
- ((uint8[i] << 16) & 0xFF0000) +
- ((uint8[i + 1] << 8) & 0xFF00) +
- (uint8[i + 2] & 0xFF)
- output.push(tripletToBase64(tmp))
- }
- return output.join('')
- }
- function fromByteArray (uint8) {
- var tmp
- var len = uint8.length
- var extraBytes = len % 3
- var parts = []
- var maxChunkLength = 16383
-
- for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
- parts.push(encodeChunk(
- uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)
- ))
- }
-
- if (extraBytes === 1) {
- tmp = uint8[len - 1]
- parts.push(
- lookup[tmp >> 2] +
- lookup[(tmp << 4) & 0x3F] +
- '=='
- )
- } else if (extraBytes === 2) {
- tmp = (uint8[len - 2] << 8) + uint8[len - 1]
- parts.push(
- lookup[tmp >> 10] +
- lookup[(tmp >> 4) & 0x3F] +
- lookup[(tmp << 2) & 0x3F] +
- '='
- )
- }
- return parts.join('')
- }
- },{}],28:[function(require,module,exports){
- },{}],29:[function(require,module,exports){
- (function (process,Buffer){
- 'use strict';
- var assert = require('assert');
- var Zstream = require('pako/lib/zlib/zstream');
- var zlib_deflate = require('pako/lib/zlib/deflate.js');
- var zlib_inflate = require('pako/lib/zlib/inflate.js');
- var constants = require('pako/lib/zlib/constants');
- for (var key in constants) {
- exports[key] = constants[key];
- }
- exports.NONE = 0;
- exports.DEFLATE = 1;
- exports.INFLATE = 2;
- exports.GZIP = 3;
- exports.GUNZIP = 4;
- exports.DEFLATERAW = 5;
- exports.INFLATERAW = 6;
- exports.UNZIP = 7;
- var GZIP_HEADER_ID1 = 0x1f;
- var GZIP_HEADER_ID2 = 0x8b;
- function Zlib(mode) {
- if (typeof mode !== 'number' || mode < exports.DEFLATE || mode > exports.UNZIP) {
- throw new TypeError('Bad argument');
- }
- this.dictionary = null;
- this.err = 0;
- this.flush = 0;
- this.init_done = false;
- this.level = 0;
- this.memLevel = 0;
- this.mode = mode;
- this.strategy = 0;
- this.windowBits = 0;
- this.write_in_progress = false;
- this.pending_close = false;
- this.gzip_id_bytes_read = 0;
- }
- Zlib.prototype.close = function () {
- if (this.write_in_progress) {
- this.pending_close = true;
- return;
- }
- this.pending_close = false;
- assert(this.init_done, 'close before init');
- assert(this.mode <= exports.UNZIP);
- if (this.mode === exports.DEFLATE || this.mode === exports.GZIP || this.mode === exports.DEFLATERAW) {
- zlib_deflate.deflateEnd(this.strm);
- } else if (this.mode === exports.INFLATE || this.mode === exports.GUNZIP || this.mode === exports.INFLATERAW || this.mode === exports.UNZIP) {
- zlib_inflate.inflateEnd(this.strm);
- }
- this.mode = exports.NONE;
- this.dictionary = null;
- };
- Zlib.prototype.write = function (flush, input, in_off, in_len, out, out_off, out_len) {
- return this._write(true, flush, input, in_off, in_len, out, out_off, out_len);
- };
- Zlib.prototype.writeSync = function (flush, input, in_off, in_len, out, out_off, out_len) {
- return this._write(false, flush, input, in_off, in_len, out, out_off, out_len);
- };
- Zlib.prototype._write = function (async, flush, input, in_off, in_len, out, out_off, out_len) {
- assert.equal(arguments.length, 8);
- assert(this.init_done, 'write before init');
- assert(this.mode !== exports.NONE, 'already finalized');
- assert.equal(false, this.write_in_progress, 'write already in progress');
- assert.equal(false, this.pending_close, 'close is pending');
- this.write_in_progress = true;
- assert.equal(false, flush === undefined, 'must provide flush value');
- this.write_in_progress = true;
- if (flush !== exports.Z_NO_FLUSH && flush !== exports.Z_PARTIAL_FLUSH && flush !== exports.Z_SYNC_FLUSH && flush !== exports.Z_FULL_FLUSH && flush !== exports.Z_FINISH && flush !== exports.Z_BLOCK) {
- throw new Error('Invalid flush value');
- }
- if (input == null) {
- input = Buffer.alloc(0);
- in_len = 0;
- in_off = 0;
- }
- this.strm.avail_in = in_len;
- this.strm.input = input;
- this.strm.next_in = in_off;
- this.strm.avail_out = out_len;
- this.strm.output = out;
- this.strm.next_out = out_off;
- this.flush = flush;
- if (!async) {
-
- this._process();
- if (this._checkError()) {
- return this._afterSync();
- }
- return;
- }
-
- var self = this;
- process.nextTick(function () {
- self._process();
- self._after();
- });
- return this;
- };
- Zlib.prototype._afterSync = function () {
- var avail_out = this.strm.avail_out;
- var avail_in = this.strm.avail_in;
- this.write_in_progress = false;
- return [avail_in, avail_out];
- };
- Zlib.prototype._process = function () {
- var next_expected_header_byte = null;
-
-
-
- switch (this.mode) {
- case exports.DEFLATE:
- case exports.GZIP:
- case exports.DEFLATERAW:
- this.err = zlib_deflate.deflate(this.strm, this.flush);
- break;
- case exports.UNZIP:
- if (this.strm.avail_in > 0) {
- next_expected_header_byte = this.strm.next_in;
- }
- switch (this.gzip_id_bytes_read) {
- case 0:
- if (next_expected_header_byte === null) {
- break;
- }
- if (this.strm.input[next_expected_header_byte] === GZIP_HEADER_ID1) {
- this.gzip_id_bytes_read = 1;
- next_expected_header_byte++;
- if (this.strm.avail_in === 1) {
-
- break;
- }
- } else {
- this.mode = exports.INFLATE;
- break;
- }
-
- case 1:
- if (next_expected_header_byte === null) {
- break;
- }
- if (this.strm.input[next_expected_header_byte] === GZIP_HEADER_ID2) {
- this.gzip_id_bytes_read = 2;
- this.mode = exports.GUNZIP;
- } else {
-
-
- this.mode = exports.INFLATE;
- }
- break;
- default:
- throw new Error('invalid number of gzip magic number bytes read');
- }
-
- case exports.INFLATE:
- case exports.GUNZIP:
- case exports.INFLATERAW:
- this.err = zlib_inflate.inflate(this.strm, this.flush
-
- );if (this.err === exports.Z_NEED_DICT && this.dictionary) {
-
- this.err = zlib_inflate.inflateSetDictionary(this.strm, this.dictionary);
- if (this.err === exports.Z_OK) {
-
- this.err = zlib_inflate.inflate(this.strm, this.flush);
- } else if (this.err === exports.Z_DATA_ERROR) {
-
-
-
- this.err = exports.Z_NEED_DICT;
- }
- }
- while (this.strm.avail_in > 0 && this.mode === exports.GUNZIP && this.err === exports.Z_STREAM_END && this.strm.next_in[0] !== 0x00) {
-
-
-
-
- this.reset();
- this.err = zlib_inflate.inflate(this.strm, this.flush);
- }
- break;
- default:
- throw new Error('Unknown mode ' + this.mode);
- }
- };
- Zlib.prototype._checkError = function () {
-
- switch (this.err) {
- case exports.Z_OK:
- case exports.Z_BUF_ERROR:
- if (this.strm.avail_out !== 0 && this.flush === exports.Z_FINISH) {
- this._error('unexpected end of file');
- return false;
- }
- break;
- case exports.Z_STREAM_END:
-
- break;
- case exports.Z_NEED_DICT:
- if (this.dictionary == null) {
- this._error('Missing dictionary');
- } else {
- this._error('Bad dictionary');
- }
- return false;
- default:
-
- this._error('Zlib error');
- return false;
- }
- return true;
- };
- Zlib.prototype._after = function () {
- if (!this._checkError()) {
- return;
- }
- var avail_out = this.strm.avail_out;
- var avail_in = this.strm.avail_in;
- this.write_in_progress = false;
-
- this.callback(avail_in, avail_out);
- if (this.pending_close) {
- this.close();
- }
- };
- Zlib.prototype._error = function (message) {
- if (this.strm.msg) {
- message = this.strm.msg;
- }
- this.onerror(message, this.err
-
- );this.write_in_progress = false;
- if (this.pending_close) {
- this.close();
- }
- };
- Zlib.prototype.init = function (windowBits, level, memLevel, strategy, dictionary) {
- assert(arguments.length === 4 || arguments.length === 5, 'init(windowBits, level, memLevel, strategy, [dictionary])');
- assert(windowBits >= 8 && windowBits <= 15, 'invalid windowBits');
- assert(level >= -1 && level <= 9, 'invalid compression level');
- assert(memLevel >= 1 && memLevel <= 9, 'invalid memlevel');
- assert(strategy === exports.Z_FILTERED || strategy === exports.Z_HUFFMAN_ONLY || strategy === exports.Z_RLE || strategy === exports.Z_FIXED || strategy === exports.Z_DEFAULT_STRATEGY, 'invalid strategy');
- this._init(level, windowBits, memLevel, strategy, dictionary);
- this._setDictionary();
- };
- Zlib.prototype.params = function () {
- throw new Error('deflateParams Not supported');
- };
- Zlib.prototype.reset = function () {
- this._reset();
- this._setDictionary();
- };
- Zlib.prototype._init = function (level, windowBits, memLevel, strategy, dictionary) {
- this.level = level;
- this.windowBits = windowBits;
- this.memLevel = memLevel;
- this.strategy = strategy;
- this.flush = exports.Z_NO_FLUSH;
- this.err = exports.Z_OK;
- if (this.mode === exports.GZIP || this.mode === exports.GUNZIP) {
- this.windowBits += 16;
- }
- if (this.mode === exports.UNZIP) {
- this.windowBits += 32;
- }
- if (this.mode === exports.DEFLATERAW || this.mode === exports.INFLATERAW) {
- this.windowBits = -1 * this.windowBits;
- }
- this.strm = new Zstream();
- switch (this.mode) {
- case exports.DEFLATE:
- case exports.GZIP:
- case exports.DEFLATERAW:
- this.err = zlib_deflate.deflateInit2(this.strm, this.level, exports.Z_DEFLATED, this.windowBits, this.memLevel, this.strategy);
- break;
- case exports.INFLATE:
- case exports.GUNZIP:
- case exports.INFLATERAW:
- case exports.UNZIP:
- this.err = zlib_inflate.inflateInit2(this.strm, this.windowBits);
- break;
- default:
- throw new Error('Unknown mode ' + this.mode);
- }
- if (this.err !== exports.Z_OK) {
- this._error('Init error');
- }
- this.dictionary = dictionary;
- this.write_in_progress = false;
- this.init_done = true;
- };
- Zlib.prototype._setDictionary = function () {
- if (this.dictionary == null) {
- return;
- }
- this.err = exports.Z_OK;
- switch (this.mode) {
- case exports.DEFLATE:
- case exports.DEFLATERAW:
- this.err = zlib_deflate.deflateSetDictionary(this.strm, this.dictionary);
- break;
- default:
- break;
- }
- if (this.err !== exports.Z_OK) {
- this._error('Failed to set dictionary');
- }
- };
- Zlib.prototype._reset = function () {
- this.err = exports.Z_OK;
- switch (this.mode) {
- case exports.DEFLATE:
- case exports.DEFLATERAW:
- case exports.GZIP:
- this.err = zlib_deflate.deflateReset(this.strm);
- break;
- case exports.INFLATE:
- case exports.INFLATERAW:
- case exports.GUNZIP:
- this.err = zlib_inflate.inflateReset(this.strm);
- break;
- default:
- break;
- }
- if (this.err !== exports.Z_OK) {
- this._error('Failed to reset stream');
- }
- };
- exports.Zlib = Zlib;
- }).call(this,require('_process'),require("buffer").Buffer)
- },{"_process":51,"assert":23,"buffer":32,"pako/lib/zlib/constants":41,"pako/lib/zlib/deflate.js":43,"pako/lib/zlib/inflate.js":45,"pako/lib/zlib/zstream":49}],30:[function(require,module,exports){
- (function (process){
- 'use strict';
- var Buffer = require('buffer').Buffer;
- var Transform = require('stream').Transform;
- var binding = require('./binding');
- var util = require('util');
- var assert = require('assert').ok;
- var kMaxLength = require('buffer').kMaxLength;
- var kRangeErrorMessage = 'Cannot create final Buffer. It would be larger ' + 'than 0x' + kMaxLength.toString(16) + ' bytes';
- binding.Z_MIN_WINDOWBITS = 8;
- binding.Z_MAX_WINDOWBITS = 15;
- binding.Z_DEFAULT_WINDOWBITS = 15;
- binding.Z_MIN_CHUNK = 64;
- binding.Z_MAX_CHUNK = Infinity;
- binding.Z_DEFAULT_CHUNK = 16 * 1024;
- binding.Z_MIN_MEMLEVEL = 1;
- binding.Z_MAX_MEMLEVEL = 9;
- binding.Z_DEFAULT_MEMLEVEL = 8;
- binding.Z_MIN_LEVEL = -1;
- binding.Z_MAX_LEVEL = 9;
- binding.Z_DEFAULT_LEVEL = binding.Z_DEFAULT_COMPRESSION;
- var bkeys = Object.keys(binding);
- for (var bk = 0; bk < bkeys.length; bk++) {
- var bkey = bkeys[bk];
- if (bkey.match(/^Z/)) {
- Object.defineProperty(exports, bkey, {
- enumerable: true, value: binding[bkey], writable: false
- });
- }
- }
- var codes = {
- Z_OK: binding.Z_OK,
- Z_STREAM_END: binding.Z_STREAM_END,
- Z_NEED_DICT: binding.Z_NEED_DICT,
- Z_ERRNO: binding.Z_ERRNO,
- Z_STREAM_ERROR: binding.Z_STREAM_ERROR,
- Z_DATA_ERROR: binding.Z_DATA_ERROR,
- Z_MEM_ERROR: binding.Z_MEM_ERROR,
- Z_BUF_ERROR: binding.Z_BUF_ERROR,
- Z_VERSION_ERROR: binding.Z_VERSION_ERROR
- };
- var ckeys = Object.keys(codes);
- for (var ck = 0; ck < ckeys.length; ck++) {
- var ckey = ckeys[ck];
- codes[codes[ckey]] = ckey;
- }
- Object.defineProperty(exports, 'codes', {
- enumerable: true, value: Object.freeze(codes), writable: false
- });
- exports.Deflate = Deflate;
- exports.Inflate = Inflate;
- exports.Gzip = Gzip;
- exports.Gunzip = Gunzip;
- exports.DeflateRaw = DeflateRaw;
- exports.InflateRaw = InflateRaw;
- exports.Unzip = Unzip;
- exports.createDeflate = function (o) {
- return new Deflate(o);
- };
- exports.createInflate = function (o) {
- return new Inflate(o);
- };
- exports.createDeflateRaw = function (o) {
- return new DeflateRaw(o);
- };
- exports.createInflateRaw = function (o) {
- return new InflateRaw(o);
- };
- exports.createGzip = function (o) {
- return new Gzip(o);
- };
- exports.createGunzip = function (o) {
- return new Gunzip(o);
- };
- exports.createUnzip = function (o) {
- return new Unzip(o);
- };
- exports.deflate = function (buffer, opts, callback) {
- if (typeof opts === 'function') {
- callback = opts;
- opts = {};
- }
- return zlibBuffer(new Deflate(opts), buffer, callback);
- };
- exports.deflateSync = function (buffer, opts) {
- return zlibBufferSync(new Deflate(opts), buffer);
- };
- exports.gzip = function (buffer, opts, callback) {
- if (typeof opts === 'function') {
- callback = opts;
- opts = {};
- }
- return zlibBuffer(new Gzip(opts), buffer, callback);
- };
- exports.gzipSync = function (buffer, opts) {
- return zlibBufferSync(new Gzip(opts), buffer);
- };
- exports.deflateRaw = function (buffer, opts, callback) {
- if (typeof opts === 'function') {
- callback = opts;
- opts = {};
- }
- return zlibBuffer(new DeflateRaw(opts), buffer, callback);
- };
- exports.deflateRawSync = function (buffer, opts) {
- return zlibBufferSync(new DeflateRaw(opts), buffer);
- };
- exports.unzip = function (buffer, opts, callback) {
- if (typeof opts === 'function') {
- callback = opts;
- opts = {};
- }
- return zlibBuffer(new Unzip(opts), buffer, callback);
- };
- exports.unzipSync = function (buffer, opts) {
- return zlibBufferSync(new Unzip(opts), buffer);
- };
- exports.inflate = function (buffer, opts, callback) {
- if (typeof opts === 'function') {
- callback = opts;
- opts = {};
- }
- return zlibBuffer(new Inflate(opts), buffer, callback);
- };
- exports.inflateSync = function (buffer, opts) {
- return zlibBufferSync(new Inflate(opts), buffer);
- };
- exports.gunzip = function (buffer, opts, callback) {
- if (typeof opts === 'function') {
- callback = opts;
- opts = {};
- }
- return zlibBuffer(new Gunzip(opts), buffer, callback);
- };
- exports.gunzipSync = function (buffer, opts) {
- return zlibBufferSync(new Gunzip(opts), buffer);
- };
- exports.inflateRaw = function (buffer, opts, callback) {
- if (typeof opts === 'function') {
- callback = opts;
- opts = {};
- }
- return zlibBuffer(new InflateRaw(opts), buffer, callback);
- };
- exports.inflateRawSync = function (buffer, opts) {
- return zlibBufferSync(new InflateRaw(opts), buffer);
- };
- function zlibBuffer(engine, buffer, callback) {
- var buffers = [];
- var nread = 0;
- engine.on('error', onError);
- engine.on('end', onEnd);
- engine.end(buffer);
- flow();
- function flow() {
- var chunk;
- while (null !== (chunk = engine.read())) {
- buffers.push(chunk);
- nread += chunk.length;
- }
- engine.once('readable', flow);
- }
- function onError(err) {
- engine.removeListener('end', onEnd);
- engine.removeListener('readable', flow);
- callback(err);
- }
- function onEnd() {
- var buf;
- var err = null;
- if (nread >= kMaxLength) {
- err = new RangeError(kRangeErrorMessage);
- } else {
- buf = Buffer.concat(buffers, nread);
- }
- buffers = [];
- engine.close();
- callback(err, buf);
- }
- }
- function zlibBufferSync(engine, buffer) {
- if (typeof buffer === 'string') buffer = Buffer.from(buffer);
- if (!Buffer.isBuffer(buffer)) throw new TypeError('Not a string or buffer');
- var flushFlag = engine._finishFlushFlag;
- return engine._processChunk(buffer, flushFlag);
- }
- function Deflate(opts) {
- if (!(this instanceof Deflate)) return new Deflate(opts);
- Zlib.call(this, opts, binding.DEFLATE);
- }
- function Inflate(opts) {
- if (!(this instanceof Inflate)) return new Inflate(opts);
- Zlib.call(this, opts, binding.INFLATE);
- }
- function Gzip(opts) {
- if (!(this instanceof Gzip)) return new Gzip(opts);
- Zlib.call(this, opts, binding.GZIP);
- }
- function Gunzip(opts) {
- if (!(this instanceof Gunzip)) return new Gunzip(opts);
- Zlib.call(this, opts, binding.GUNZIP);
- }
- function DeflateRaw(opts) {
- if (!(this instanceof DeflateRaw)) return new DeflateRaw(opts);
- Zlib.call(this, opts, binding.DEFLATERAW);
- }
- function InflateRaw(opts) {
- if (!(this instanceof InflateRaw)) return new InflateRaw(opts);
- Zlib.call(this, opts, binding.INFLATERAW);
- }
- function Unzip(opts) {
- if (!(this instanceof Unzip)) return new Unzip(opts);
- Zlib.call(this, opts, binding.UNZIP);
- }
- function isValidFlushFlag(flag) {
- return flag === binding.Z_NO_FLUSH || flag === binding.Z_PARTIAL_FLUSH || flag === binding.Z_SYNC_FLUSH || flag === binding.Z_FULL_FLUSH || flag === binding.Z_FINISH || flag === binding.Z_BLOCK;
- }
- function Zlib(opts, mode) {
- var _this = this;
- this._opts = opts = opts || {};
- this._chunkSize = opts.chunkSize || exports.Z_DEFAULT_CHUNK;
- Transform.call(this, opts);
- if (opts.flush && !isValidFlushFlag(opts.flush)) {
- throw new Error('Invalid flush flag: ' + opts.flush);
- }
- if (opts.finishFlush && !isValidFlushFlag(opts.finishFlush)) {
- throw new Error('Invalid flush flag: ' + opts.finishFlush);
- }
- this._flushFlag = opts.flush || binding.Z_NO_FLUSH;
- this._finishFlushFlag = typeof opts.finishFlush !== 'undefined' ? opts.finishFlush : binding.Z_FINISH;
- if (opts.chunkSize) {
- if (opts.chunkSize < exports.Z_MIN_CHUNK || opts.chunkSize > exports.Z_MAX_CHUNK) {
- throw new Error('Invalid chunk size: ' + opts.chunkSize);
- }
- }
- if (opts.windowBits) {
- if (opts.windowBits < exports.Z_MIN_WINDOWBITS || opts.windowBits > exports.Z_MAX_WINDOWBITS) {
- throw new Error('Invalid windowBits: ' + opts.windowBits);
- }
- }
- if (opts.level) {
- if (opts.level < exports.Z_MIN_LEVEL || opts.level > exports.Z_MAX_LEVEL) {
- throw new Error('Invalid compression level: ' + opts.level);
- }
- }
- if (opts.memLevel) {
- if (opts.memLevel < exports.Z_MIN_MEMLEVEL || opts.memLevel > exports.Z_MAX_MEMLEVEL) {
- throw new Error('Invalid memLevel: ' + opts.memLevel);
- }
- }
- if (opts.strategy) {
- if (opts.strategy != exports.Z_FILTERED && opts.strategy != exports.Z_HUFFMAN_ONLY && opts.strategy != exports.Z_RLE && opts.strategy != exports.Z_FIXED && opts.strategy != exports.Z_DEFAULT_STRATEGY) {
- throw new Error('Invalid strategy: ' + opts.strategy);
- }
- }
- if (opts.dictionary) {
- if (!Buffer.isBuffer(opts.dictionary)) {
- throw new Error('Invalid dictionary: it should be a Buffer instance');
- }
- }
- this._handle = new binding.Zlib(mode);
- var self = this;
- this._hadError = false;
- this._handle.onerror = function (message, errno) {
-
-
- _close(self);
- self._hadError = true;
- var error = new Error(message);
- error.errno = errno;
- error.code = exports.codes[errno];
- self.emit('error', error);
- };
- var level = exports.Z_DEFAULT_COMPRESSION;
- if (typeof opts.level === 'number') level = opts.level;
- var strategy = exports.Z_DEFAULT_STRATEGY;
- if (typeof opts.strategy === 'number') strategy = opts.strategy;
- this._handle.init(opts.windowBits || exports.Z_DEFAULT_WINDOWBITS, level, opts.memLevel || exports.Z_DEFAULT_MEMLEVEL, strategy, opts.dictionary);
- this._buffer = Buffer.allocUnsafe(this._chunkSize);
- this._offset = 0;
- this._level = level;
- this._strategy = strategy;
- this.once('end', this.close);
- Object.defineProperty(this, '_closed', {
- get: function () {
- return !_this._handle;
- },
- configurable: true,
- enumerable: true
- });
- }
- util.inherits(Zlib, Transform);
- Zlib.prototype.params = function (level, strategy, callback) {
- if (level < exports.Z_MIN_LEVEL || level > exports.Z_MAX_LEVEL) {
- throw new RangeError('Invalid compression level: ' + level);
- }
- if (strategy != exports.Z_FILTERED && strategy != exports.Z_HUFFMAN_ONLY && strategy != exports.Z_RLE && strategy != exports.Z_FIXED && strategy != exports.Z_DEFAULT_STRATEGY) {
- throw new TypeError('Invalid strategy: ' + strategy);
- }
- if (this._level !== level || this._strategy !== strategy) {
- var self = this;
- this.flush(binding.Z_SYNC_FLUSH, function () {
- assert(self._handle, 'zlib binding closed');
- self._handle.params(level, strategy);
- if (!self._hadError) {
- self._level = level;
- self._strategy = strategy;
- if (callback) callback();
- }
- });
- } else {
- process.nextTick(callback);
- }
- };
- Zlib.prototype.reset = function () {
- assert(this._handle, 'zlib binding closed');
- return this._handle.reset();
- };
- Zlib.prototype._flush = function (callback) {
- this._transform(Buffer.alloc(0), '', callback);
- };
- Zlib.prototype.flush = function (kind, callback) {
- var _this2 = this;
- var ws = this._writableState;
- if (typeof kind === 'function' || kind === undefined && !callback) {
- callback = kind;
- kind = binding.Z_FULL_FLUSH;
- }
- if (ws.ended) {
- if (callback) process.nextTick(callback);
- } else if (ws.ending) {
- if (callback) this.once('end', callback);
- } else if (ws.needDrain) {
- if (callback) {
- this.once('drain', function () {
- return _this2.flush(kind, callback);
- });
- }
- } else {
- this._flushFlag = kind;
- this.write(Buffer.alloc(0), '', callback);
- }
- };
- Zlib.prototype.close = function (callback) {
- _close(this, callback);
- process.nextTick(emitCloseNT, this);
- };
- function _close(engine, callback) {
- if (callback) process.nextTick(callback);
-
- if (!engine._handle) return;
- engine._handle.close();
- engine._handle = null;
- }
- function emitCloseNT(self) {
- self.emit('close');
- }
- Zlib.prototype._transform = function (chunk, encoding, cb) {
- var flushFlag;
- var ws = this._writableState;
- var ending = ws.ending || ws.ended;
- var last = ending && (!chunk || ws.length === chunk.length);
- if (chunk !== null && !Buffer.isBuffer(chunk)) return cb(new Error('invalid input'));
- if (!this._handle) return cb(new Error('zlib binding closed'));
-
-
-
-
-
- if (last) flushFlag = this._finishFlushFlag;else {
- flushFlag = this._flushFlag;
-
-
- if (chunk.length >= ws.length) {
- this._flushFlag = this._opts.flush || binding.Z_NO_FLUSH;
- }
- }
- this._processChunk(chunk, flushFlag, cb);
- };
- Zlib.prototype._processChunk = function (chunk, flushFlag, cb) {
- var availInBefore = chunk && chunk.length;
- var availOutBefore = this._chunkSize - this._offset;
- var inOff = 0;
- var self = this;
- var async = typeof cb === 'function';
- if (!async) {
- var buffers = [];
- var nread = 0;
- var error;
- this.on('error', function (er) {
- error = er;
- });
- assert(this._handle, 'zlib binding closed');
- do {
- var res = this._handle.writeSync(flushFlag, chunk,
- inOff,
- availInBefore,
- this._buffer,
- this._offset,
- availOutBefore);
- } while (!this._hadError && callback(res[0], res[1]));
- if (this._hadError) {
- throw error;
- }
- if (nread >= kMaxLength) {
- _close(this);
- throw new RangeError(kRangeErrorMessage);
- }
- var buf = Buffer.concat(buffers, nread);
- _close(this);
- return buf;
- }
- assert(this._handle, 'zlib binding closed');
- var req = this._handle.write(flushFlag, chunk,
- inOff,
- availInBefore,
- this._buffer,
- this._offset,
- availOutBefore);
- req.buffer = chunk;
- req.callback = callback;
- function callback(availInAfter, availOutAfter) {
-
-
-
-
-
- if (this) {
- this.buffer = null;
- this.callback = null;
- }
- if (self._hadError) return;
- var have = availOutBefore - availOutAfter;
- assert(have >= 0, 'have should not go down');
- if (have > 0) {
- var out = self._buffer.slice(self._offset, self._offset + have);
- self._offset += have;
-
- if (async) {
- self.push(out);
- } else {
- buffers.push(out);
- nread += out.length;
- }
- }
-
- if (availOutAfter === 0 || self._offset >= self._chunkSize) {
- availOutBefore = self._chunkSize;
- self._offset = 0;
- self._buffer = Buffer.allocUnsafe(self._chunkSize);
- }
- if (availOutAfter === 0) {
-
-
-
-
- inOff += availInBefore - availInAfter;
- availInBefore = availInAfter;
- if (!async) return true;
- var newReq = self._handle.write(flushFlag, chunk, inOff, availInBefore, self._buffer, self._offset, self._chunkSize);
- newReq.callback = callback;
- newReq.buffer = chunk;
- return;
- }
- if (!async) return false;
-
- cb();
- }
- };
- util.inherits(Deflate, Zlib);
- util.inherits(Inflate, Zlib);
- util.inherits(Gzip, Zlib);
- util.inherits(Gunzip, Zlib);
- util.inherits(DeflateRaw, Zlib);
- util.inherits(InflateRaw, Zlib);
- util.inherits(Unzip, Zlib);
- }).call(this,require('_process'))
- },{"./binding":29,"_process":51,"assert":23,"buffer":32,"stream":64,"util":69}],31:[function(require,module,exports){
- (function (global){
- 'use strict';
- var buffer = require('buffer');
- var Buffer = buffer.Buffer;
- var SlowBuffer = buffer.SlowBuffer;
- var MAX_LEN = buffer.kMaxLength || 2147483647;
- exports.alloc = function alloc(size, fill, encoding) {
- if (typeof Buffer.alloc === 'function') {
- return Buffer.alloc(size, fill, encoding);
- }
- if (typeof encoding === 'number') {
- throw new TypeError('encoding must not be number');
- }
- if (typeof size !== 'number') {
- throw new TypeError('size must be a number');
- }
- if (size > MAX_LEN) {
- throw new RangeError('size is too large');
- }
- var enc = encoding;
- var _fill = fill;
- if (_fill === undefined) {
- enc = undefined;
- _fill = 0;
- }
- var buf = new Buffer(size);
- if (typeof _fill === 'string') {
- var fillBuf = new Buffer(_fill, enc);
- var flen = fillBuf.length;
- var i = -1;
- while (++i < size) {
- buf[i] = fillBuf[i % flen];
- }
- } else {
- buf.fill(_fill);
- }
- return buf;
- }
- exports.allocUnsafe = function allocUnsafe(size) {
- if (typeof Buffer.allocUnsafe === 'function') {
- return Buffer.allocUnsafe(size);
- }
- if (typeof size !== 'number') {
- throw new TypeError('size must be a number');
- }
- if (size > MAX_LEN) {
- throw new RangeError('size is too large');
- }
- return new Buffer(size);
- }
- exports.from = function from(value, encodingOrOffset, length) {
- if (typeof Buffer.from === 'function' && (!global.Uint8Array || Uint8Array.from !== Buffer.from)) {
- return Buffer.from(value, encodingOrOffset, length);
- }
- if (typeof value === 'number') {
- throw new TypeError('"value" argument must not be a number');
- }
- if (typeof value === 'string') {
- return new Buffer(value, encodingOrOffset);
- }
- if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
- var offset = encodingOrOffset;
- if (arguments.length === 1) {
- return new Buffer(value);
- }
- if (typeof offset === 'undefined') {
- offset = 0;
- }
- var len = length;
- if (typeof len === 'undefined') {
- len = value.byteLength - offset;
- }
- if (offset >= value.byteLength) {
- throw new RangeError('\'offset\' is out of bounds');
- }
- if (len > value.byteLength - offset) {
- throw new RangeError('\'length\' is out of bounds');
- }
- return new Buffer(value.slice(offset, offset + len));
- }
- if (Buffer.isBuffer(value)) {
- var out = new Buffer(value.length);
- value.copy(out, 0, 0, value.length);
- return out;
- }
- if (value) {
- if (Array.isArray(value) || (typeof ArrayBuffer !== 'undefined' && value.buffer instanceof ArrayBuffer) || 'length' in value) {
- return new Buffer(value);
- }
- if (value.type === 'Buffer' && Array.isArray(value.data)) {
- return new Buffer(value.data);
- }
- }
- throw new TypeError('First argument must be a string, Buffer, ' + 'ArrayBuffer, Array, or array-like object.');
- }
- exports.allocUnsafeSlow = function allocUnsafeSlow(size) {
- if (typeof Buffer.allocUnsafeSlow === 'function') {
- return Buffer.allocUnsafeSlow(size);
- }
- if (typeof size !== 'number') {
- throw new TypeError('size must be a number');
- }
- if (size >= MAX_LEN) {
- throw new RangeError('size is too large');
- }
- return new SlowBuffer(size);
- }
- }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
- },{"buffer":32}],32:[function(require,module,exports){
- (function (Buffer){
- 'use strict'
- var base64 = require('base64-js')
- var ieee754 = require('ieee754')
- exports.Buffer = Buffer
- exports.SlowBuffer = SlowBuffer
- exports.INSPECT_MAX_BYTES = 50
- var K_MAX_LENGTH = 0x7fffffff
- exports.kMaxLength = K_MAX_LENGTH
- Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
- if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
- typeof console.error === 'function') {
- console.error(
- 'This browser lacks typed array (Uint8Array) support which is required by ' +
- '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
- )
- }
- function typedArraySupport () {
-
- try {
- var arr = new Uint8Array(1)
- arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () { return 42 } }
- return arr.foo() === 42
- } catch (e) {
- return false
- }
- }
- Object.defineProperty(Buffer.prototype, 'parent', {
- enumerable: true,
- get: function () {
- if (!Buffer.isBuffer(this)) return undefined
- return this.buffer
- }
- })
- Object.defineProperty(Buffer.prototype, 'offset', {
- enumerable: true,
- get: function () {
- if (!Buffer.isBuffer(this)) return undefined
- return this.byteOffset
- }
- })
- function createBuffer (length) {
- if (length > K_MAX_LENGTH) {
- throw new RangeError('The value "' + length + '" is invalid for option "size"')
- }
-
- var buf = new Uint8Array(length)
- buf.__proto__ = Buffer.prototype
- return buf
- }
- function Buffer (arg, encodingOrOffset, length) {
-
- if (typeof arg === 'number') {
- if (typeof encodingOrOffset === 'string') {
- throw new TypeError(
- 'The "string" argument must be of type string. Received type number'
- )
- }
- return allocUnsafe(arg)
- }
- return from(arg, encodingOrOffset, length)
- }
- if (typeof Symbol !== 'undefined' && Symbol.species != null &&
- Buffer[Symbol.species] === Buffer) {
- Object.defineProperty(Buffer, Symbol.species, {
- value: null,
- configurable: true,
- enumerable: false,
- writable: false
- })
- }
- Buffer.poolSize = 8192
- function from (value, encodingOrOffset, length) {
- if (typeof value === 'string') {
- return fromString(value, encodingOrOffset)
- }
- if (ArrayBuffer.isView(value)) {
- return fromArrayLike(value)
- }
- if (value == null) {
- throw TypeError(
- 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
- 'or Array-like Object. Received type ' + (typeof value)
- )
- }
- if (isInstance(value, ArrayBuffer) ||
- (value && isInstance(value.buffer, ArrayBuffer))) {
- return fromArrayBuffer(value, encodingOrOffset, length)
- }
- if (typeof value === 'number') {
- throw new TypeError(
- 'The "value" argument must not be of type number. Received type number'
- )
- }
- var valueOf = value.valueOf && value.valueOf()
- if (valueOf != null && valueOf !== value) {
- return Buffer.from(valueOf, encodingOrOffset, length)
- }
- var b = fromObject(value)
- if (b) return b
- if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
- typeof value[Symbol.toPrimitive] === 'function') {
- return Buffer.from(
- value[Symbol.toPrimitive]('string'), encodingOrOffset, length
- )
- }
- throw new TypeError(
- 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
- 'or Array-like Object. Received type ' + (typeof value)
- )
- }
- Buffer.from = function (value, encodingOrOffset, length) {
- return from(value, encodingOrOffset, length)
- }
- Buffer.prototype.__proto__ = Uint8Array.prototype
- Buffer.__proto__ = Uint8Array
- function assertSize (size) {
- if (typeof size !== 'number') {
- throw new TypeError('"size" argument must be of type number')
- } else if (size < 0) {
- throw new RangeError('The value "' + size + '" is invalid for option "size"')
- }
- }
- function alloc (size, fill, encoding) {
- assertSize(size)
- if (size <= 0) {
- return createBuffer(size)
- }
- if (fill !== undefined) {
-
-
-
- return typeof encoding === 'string'
- ? createBuffer(size).fill(fill, encoding)
- : createBuffer(size).fill(fill)
- }
- return createBuffer(size)
- }
- Buffer.alloc = function (size, fill, encoding) {
- return alloc(size, fill, encoding)
- }
- function allocUnsafe (size) {
- assertSize(size)
- return createBuffer(size < 0 ? 0 : checked(size) | 0)
- }
- Buffer.allocUnsafe = function (size) {
- return allocUnsafe(size)
- }
- Buffer.allocUnsafeSlow = function (size) {
- return allocUnsafe(size)
- }
- function fromString (string, encoding) {
- if (typeof encoding !== 'string' || encoding === '') {
- encoding = 'utf8'
- }
- if (!Buffer.isEncoding(encoding)) {
- throw new TypeError('Unknown encoding: ' + encoding)
- }
- var length = byteLength(string, encoding) | 0
- var buf = createBuffer(length)
- var actual = buf.write(string, encoding)
- if (actual !== length) {
-
-
-
- buf = buf.slice(0, actual)
- }
- return buf
- }
- function fromArrayLike (array) {
- var length = array.length < 0 ? 0 : checked(array.length) | 0
- var buf = createBuffer(length)
- for (var i = 0; i < length; i += 1) {
- buf[i] = array[i] & 255
- }
- return buf
- }
- function fromArrayBuffer (array, byteOffset, length) {
- if (byteOffset < 0 || array.byteLength < byteOffset) {
- throw new RangeError('"offset" is outside of buffer bounds')
- }
- if (array.byteLength < byteOffset + (length || 0)) {
- throw new RangeError('"length" is outside of buffer bounds')
- }
- var buf
- if (byteOffset === undefined && length === undefined) {
- buf = new Uint8Array(array)
- } else if (length === undefined) {
- buf = new Uint8Array(array, byteOffset)
- } else {
- buf = new Uint8Array(array, byteOffset, length)
- }
-
- buf.__proto__ = Buffer.prototype
- return buf
- }
- function fromObject (obj) {
- if (Buffer.isBuffer(obj)) {
- var len = checked(obj.length) | 0
- var buf = createBuffer(len)
- if (buf.length === 0) {
- return buf
- }
- obj.copy(buf, 0, 0, len)
- return buf
- }
- if (obj.length !== undefined) {
- if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
- return createBuffer(0)
- }
- return fromArrayLike(obj)
- }
- if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
- return fromArrayLike(obj.data)
- }
- }
- function checked (length) {
-
-
- if (length >= K_MAX_LENGTH) {
- throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
- 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
- }
- return length | 0
- }
- function SlowBuffer (length) {
- if (+length != length) {
- length = 0
- }
- return Buffer.alloc(+length)
- }
- Buffer.isBuffer = function isBuffer (b) {
- return b != null && b._isBuffer === true &&
- b !== Buffer.prototype
- }
- Buffer.compare = function compare (a, b) {
- if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
- if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
- if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
- throw new TypeError(
- 'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
- )
- }
- if (a === b) return 0
- var x = a.length
- var y = b.length
- for (var i = 0, len = Math.min(x, y); i < len; ++i) {
- if (a[i] !== b[i]) {
- x = a[i]
- y = b[i]
- break
- }
- }
- if (x < y) return -1
- if (y < x) return 1
- return 0
- }
- Buffer.isEncoding = function isEncoding (encoding) {
- switch (String(encoding).toLowerCase()) {
- case 'hex':
- case 'utf8':
- case 'utf-8':
- case 'ascii':
- case 'latin1':
- case 'binary':
- case 'base64':
- case 'ucs2':
- case 'ucs-2':
- case 'utf16le':
- case 'utf-16le':
- return true
- default:
- return false
- }
- }
- Buffer.concat = function concat (list, length) {
- if (!Array.isArray(list)) {
- throw new TypeError('"list" argument must be an Array of Buffers')
- }
- if (list.length === 0) {
- return Buffer.alloc(0)
- }
- var i
- if (length === undefined) {
- length = 0
- for (i = 0; i < list.length; ++i) {
- length += list[i].length
- }
- }
- var buffer = Buffer.allocUnsafe(length)
- var pos = 0
- for (i = 0; i < list.length; ++i) {
- var buf = list[i]
- if (isInstance(buf, Uint8Array)) {
- buf = Buffer.from(buf)
- }
- if (!Buffer.isBuffer(buf)) {
- throw new TypeError('"list" argument must be an Array of Buffers')
- }
- buf.copy(buffer, pos)
- pos += buf.length
- }
- return buffer
- }
- function byteLength (string, encoding) {
- if (Buffer.isBuffer(string)) {
- return string.length
- }
- if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
- return string.byteLength
- }
- if (typeof string !== 'string') {
- throw new TypeError(
- 'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
- 'Received type ' + typeof string
- )
- }
- var len = string.length
- var mustMatch = (arguments.length > 2 && arguments[2] === true)
- if (!mustMatch && len === 0) return 0
-
- var loweredCase = false
- for (;;) {
- switch (encoding) {
- case 'ascii':
- case 'latin1':
- case 'binary':
- return len
- case 'utf8':
- case 'utf-8':
- return utf8ToBytes(string).length
- case 'ucs2':
- case 'ucs-2':
- case 'utf16le':
- case 'utf-16le':
- return len * 2
- case 'hex':
- return len >>> 1
- case 'base64':
- return base64ToBytes(string).length
- default:
- if (loweredCase) {
- return mustMatch ? -1 : utf8ToBytes(string).length
- }
- encoding = ('' + encoding).toLowerCase()
- loweredCase = true
- }
- }
- }
- Buffer.byteLength = byteLength
- function slowToString (encoding, start, end) {
- var loweredCase = false
-
-
-
-
-
-
- if (start === undefined || start < 0) {
- start = 0
- }
-
-
- if (start > this.length) {
- return ''
- }
- if (end === undefined || end > this.length) {
- end = this.length
- }
- if (end <= 0) {
- return ''
- }
-
- end >>>= 0
- start >>>= 0
- if (end <= start) {
- return ''
- }
- if (!encoding) encoding = 'utf8'
- while (true) {
- switch (encoding) {
- case 'hex':
- return hexSlice(this, start, end)
- case 'utf8':
- case 'utf-8':
- return utf8Slice(this, start, end)
- case 'ascii':
- return asciiSlice(this, start, end)
- case 'latin1':
- case 'binary':
- return latin1Slice(this, start, end)
- case 'base64':
- return base64Slice(this, start, end)
- case 'ucs2':
- case 'ucs-2':
- case 'utf16le':
- case 'utf-16le':
- return utf16leSlice(this, start, end)
- default:
- if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
- encoding = (encoding + '').toLowerCase()
- loweredCase = true
- }
- }
- }
- Buffer.prototype._isBuffer = true
- function swap (b, n, m) {
- var i = b[n]
- b[n] = b[m]
- b[m] = i
- }
- Buffer.prototype.swap16 = function swap16 () {
- var len = this.length
- if (len % 2 !== 0) {
- throw new RangeError('Buffer size must be a multiple of 16-bits')
- }
- for (var i = 0; i < len; i += 2) {
- swap(this, i, i + 1)
- }
- return this
- }
- Buffer.prototype.swap32 = function swap32 () {
- var len = this.length
- if (len % 4 !== 0) {
- throw new RangeError('Buffer size must be a multiple of 32-bits')
- }
- for (var i = 0; i < len; i += 4) {
- swap(this, i, i + 3)
- swap(this, i + 1, i + 2)
- }
- return this
- }
- Buffer.prototype.swap64 = function swap64 () {
- var len = this.length
- if (len % 8 !== 0) {
- throw new RangeError('Buffer size must be a multiple of 64-bits')
- }
- for (var i = 0; i < len; i += 8) {
- swap(this, i, i + 7)
- swap(this, i + 1, i + 6)
- swap(this, i + 2, i + 5)
- swap(this, i + 3, i + 4)
- }
- return this
- }
- Buffer.prototype.toString = function toString () {
- var length = this.length
- if (length === 0) return ''
- if (arguments.length === 0) return utf8Slice(this, 0, length)
- return slowToString.apply(this, arguments)
- }
- Buffer.prototype.toLocaleString = Buffer.prototype.toString
- Buffer.prototype.equals = function equals (b) {
- if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
- if (this === b) return true
- return Buffer.compare(this, b) === 0
- }
- Buffer.prototype.inspect = function inspect () {
- var str = ''
- var max = exports.INSPECT_MAX_BYTES
- str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
- if (this.length > max) str += ' ... '
- return '<Buffer ' + str + '>'
- }
- Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
- if (isInstance(target, Uint8Array)) {
- target = Buffer.from(target, target.offset, target.byteLength)
- }
- if (!Buffer.isBuffer(target)) {
- throw new TypeError(
- 'The "target" argument must be one of type Buffer or Uint8Array. ' +
- 'Received type ' + (typeof target)
- )
- }
- if (start === undefined) {
- start = 0
- }
- if (end === undefined) {
- end = target ? target.length : 0
- }
- if (thisStart === undefined) {
- thisStart = 0
- }
- if (thisEnd === undefined) {
- thisEnd = this.length
- }
- if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
- throw new RangeError('out of range index')
- }
- if (thisStart >= thisEnd && start >= end) {
- return 0
- }
- if (thisStart >= thisEnd) {
- return -1
- }
- if (start >= end) {
- return 1
- }
- start >>>= 0
- end >>>= 0
- thisStart >>>= 0
- thisEnd >>>= 0
- if (this === target) return 0
- var x = thisEnd - thisStart
- var y = end - start
- var len = Math.min(x, y)
- var thisCopy = this.slice(thisStart, thisEnd)
- var targetCopy = target.slice(start, end)
- for (var i = 0; i < len; ++i) {
- if (thisCopy[i] !== targetCopy[i]) {
- x = thisCopy[i]
- y = targetCopy[i]
- break
- }
- }
- if (x < y) return -1
- if (y < x) return 1
- return 0
- }
- function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
-
- if (buffer.length === 0) return -1
-
- if (typeof byteOffset === 'string') {
- encoding = byteOffset
- byteOffset = 0
- } else if (byteOffset > 0x7fffffff) {
- byteOffset = 0x7fffffff
- } else if (byteOffset < -0x80000000) {
- byteOffset = -0x80000000
- }
- byteOffset = +byteOffset
- if (numberIsNaN(byteOffset)) {
-
- byteOffset = dir ? 0 : (buffer.length - 1)
- }
-
- if (byteOffset < 0) byteOffset = buffer.length + byteOffset
- if (byteOffset >= buffer.length) {
- if (dir) return -1
- else byteOffset = buffer.length - 1
- } else if (byteOffset < 0) {
- if (dir) byteOffset = 0
- else return -1
- }
-
- if (typeof val === 'string') {
- val = Buffer.from(val, encoding)
- }
-
- if (Buffer.isBuffer(val)) {
-
- if (val.length === 0) {
- return -1
- }
- return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
- } else if (typeof val === 'number') {
- val = val & 0xFF
- if (typeof Uint8Array.prototype.indexOf === 'function') {
- if (dir) {
- return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
- } else {
- return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
- }
- }
- return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
- }
- throw new TypeError('val must be string, number or Buffer')
- }
- function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
- var indexSize = 1
- var arrLength = arr.length
- var valLength = val.length
- if (encoding !== undefined) {
- encoding = String(encoding).toLowerCase()
- if (encoding === 'ucs2' || encoding === 'ucs-2' ||
- encoding === 'utf16le' || encoding === 'utf-16le') {
- if (arr.length < 2 || val.length < 2) {
- return -1
- }
- indexSize = 2
- arrLength /= 2
- valLength /= 2
- byteOffset /= 2
- }
- }
- function read (buf, i) {
- if (indexSize === 1) {
- return buf[i]
- } else {
- return buf.readUInt16BE(i * indexSize)
- }
- }
- var i
- if (dir) {
- var foundIndex = -1
- for (i = byteOffset; i < arrLength; i++) {
- if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
- if (foundIndex === -1) foundIndex = i
- if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
- } else {
- if (foundIndex !== -1) i -= i - foundIndex
- foundIndex = -1
- }
- }
- } else {
- if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
- for (i = byteOffset; i >= 0; i--) {
- var found = true
- for (var j = 0; j < valLength; j++) {
- if (read(arr, i + j) !== read(val, j)) {
- found = false
- break
- }
- }
- if (found) return i
- }
- }
- return -1
- }
- Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
- return this.indexOf(val, byteOffset, encoding) !== -1
- }
- Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
- return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
- }
- Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
- return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
- }
- function hexWrite (buf, string, offset, length) {
- offset = Number(offset) || 0
- var remaining = buf.length - offset
- if (!length) {
- length = remaining
- } else {
- length = Number(length)
- if (length > remaining) {
- length = remaining
- }
- }
- var strLen = string.length
- if (length > strLen / 2) {
- length = strLen / 2
- }
- for (var i = 0; i < length; ++i) {
- var parsed = parseInt(string.substr(i * 2, 2), 16)
- if (numberIsNaN(parsed)) return i
- buf[offset + i] = parsed
- }
- return i
- }
- function utf8Write (buf, string, offset, length) {
- return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
- }
- function asciiWrite (buf, string, offset, length) {
- return blitBuffer(asciiToBytes(string), buf, offset, length)
- }
- function latin1Write (buf, string, offset, length) {
- return asciiWrite(buf, string, offset, length)
- }
- function base64Write (buf, string, offset, length) {
- return blitBuffer(base64ToBytes(string), buf, offset, length)
- }
- function ucs2Write (buf, string, offset, length) {
- return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
- }
- Buffer.prototype.write = function write (string, offset, length, encoding) {
-
- if (offset === undefined) {
- encoding = 'utf8'
- length = this.length
- offset = 0
-
- } else if (length === undefined && typeof offset === 'string') {
- encoding = offset
- length = this.length
- offset = 0
-
- } else if (isFinite(offset)) {
- offset = offset >>> 0
- if (isFinite(length)) {
- length = length >>> 0
- if (encoding === undefined) encoding = 'utf8'
- } else {
- encoding = length
- length = undefined
- }
- } else {
- throw new Error(
- 'Buffer.write(string, encoding, offset[, length]) is no longer supported'
- )
- }
- var remaining = this.length - offset
- if (length === undefined || length > remaining) length = remaining
- if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
- throw new RangeError('Attempt to write outside buffer bounds')
- }
- if (!encoding) encoding = 'utf8'
- var loweredCase = false
- for (;;) {
- switch (encoding) {
- case 'hex':
- return hexWrite(this, string, offset, length)
- case 'utf8':
- case 'utf-8':
- return utf8Write(this, string, offset, length)
- case 'ascii':
- return asciiWrite(this, string, offset, length)
- case 'latin1':
- case 'binary':
- return latin1Write(this, string, offset, length)
- case 'base64':
-
- return base64Write(this, string, offset, length)
- case 'ucs2':
- case 'ucs-2':
- case 'utf16le':
- case 'utf-16le':
- return ucs2Write(this, string, offset, length)
- default:
- if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
- encoding = ('' + encoding).toLowerCase()
- loweredCase = true
- }
- }
- }
- Buffer.prototype.toJSON = function toJSON () {
- return {
- type: 'Buffer',
- data: Array.prototype.slice.call(this._arr || this, 0)
- }
- }
- function base64Slice (buf, start, end) {
- if (start === 0 && end === buf.length) {
- return base64.fromByteArray(buf)
- } else {
- return base64.fromByteArray(buf.slice(start, end))
- }
- }
- function utf8Slice (buf, start, end) {
- end = Math.min(buf.length, end)
- var res = []
- var i = start
- while (i < end) {
- var firstByte = buf[i]
- var codePoint = null
- var bytesPerSequence = (firstByte > 0xEF) ? 4
- : (firstByte > 0xDF) ? 3
- : (firstByte > 0xBF) ? 2
- : 1
- if (i + bytesPerSequence <= end) {
- var secondByte, thirdByte, fourthByte, tempCodePoint
- switch (bytesPerSequence) {
- case 1:
- if (firstByte < 0x80) {
- codePoint = firstByte
- }
- break
- case 2:
- secondByte = buf[i + 1]
- if ((secondByte & 0xC0) === 0x80) {
- tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
- if (tempCodePoint > 0x7F) {
- codePoint = tempCodePoint
- }
- }
- break
- case 3:
- secondByte = buf[i + 1]
- thirdByte = buf[i + 2]
- if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
- tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
- if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
- codePoint = tempCodePoint
- }
- }
- break
- case 4:
- secondByte = buf[i + 1]
- thirdByte = buf[i + 2]
- fourthByte = buf[i + 3]
- if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
- tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
- if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
- codePoint = tempCodePoint
- }
- }
- }
- }
- if (codePoint === null) {
-
-
- codePoint = 0xFFFD
- bytesPerSequence = 1
- } else if (codePoint > 0xFFFF) {
-
- codePoint -= 0x10000
- res.push(codePoint >>> 10 & 0x3FF | 0xD800)
- codePoint = 0xDC00 | codePoint & 0x3FF
- }
- res.push(codePoint)
- i += bytesPerSequence
- }
- return decodeCodePointsArray(res)
- }
- var MAX_ARGUMENTS_LENGTH = 0x1000
- function decodeCodePointsArray (codePoints) {
- var len = codePoints.length
- if (len <= MAX_ARGUMENTS_LENGTH) {
- return String.fromCharCode.apply(String, codePoints)
- }
-
- 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)
-
- newBuf.__proto__ = Buffer.prototype
- return newBuf
- }
- 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)
- }
- 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
-
- if (end === start) return 0
- if (target.length === 0 || this.length === 0) return 0
-
- 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')
-
- 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') {
-
- this.copyWithin(targetStart, start, end)
- } else if (this === target && start < targetStart && targetStart < 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
- }
- Buffer.prototype.fill = function fill (val, start, end, encoding) {
-
- 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') {
-
- val = code
- }
- }
- } else if (typeof val === 'number') {
- val = val & 255
- }
-
- 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
- }
- var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
- function base64clean (str) {
-
- str = str.split('=')[0]
-
- str = str.trim().replace(INVALID_BASE64_RE, '')
-
- if (str.length < 2) return ''
-
- 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)
-
- if (codePoint > 0xD7FF && codePoint < 0xE000) {
-
- if (!leadSurrogate) {
-
- if (codePoint > 0xDBFF) {
-
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- continue
- } else if (i + 1 === length) {
-
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- continue
- }
-
- leadSurrogate = codePoint
- continue
- }
-
- if (codePoint < 0xDC00) {
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- leadSurrogate = codePoint
- continue
- }
-
- codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
- } else if (leadSurrogate) {
-
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- }
- leadSurrogate = null
-
- 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) {
-
- byteArray.push(str.charCodeAt(i) & 0xFF)
- }
- return byteArray
- }
- function utf16leToBytes (str, units) {
- var c, hi, lo
- var byteArray = []
- for (var i = 0; i < str.length; ++i) {
- if ((units -= 2) < 0) break
- c = str.charCodeAt(i)
- hi = c >> 8
- lo = c % 256
- byteArray.push(lo)
- byteArray.push(hi)
- }
- return byteArray
- }
- function base64ToBytes (str) {
- return base64.toByteArray(base64clean(str))
- }
- function blitBuffer (src, dst, offset, length) {
- for (var i = 0; i < length; ++i) {
- if ((i + offset >= dst.length) || (i >= src.length)) break
- dst[i + offset] = src[i]
- }
- return i
- }
- function isInstance (obj, type) {
- return obj instanceof type ||
- (obj != null && obj.constructor != null && obj.constructor.name != null &&
- obj.constructor.name === type.name)
- }
- function numberIsNaN (obj) {
-
- return obj !== obj
- }
- }).call(this,require("buffer").Buffer)
- },{"base64-js":27,"buffer":32,"ieee754":35}],33:[function(require,module,exports){
- (function (Buffer){
- 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' ||
- 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":37}],34:[function(require,module,exports){
- function EventEmitter() {
- this._events = this._events || {};
- this._maxListeners = this._maxListeners || undefined;
- }
- module.exports = EventEmitter;
- EventEmitter.EventEmitter = EventEmitter;
- EventEmitter.prototype._events = undefined;
- EventEmitter.prototype._maxListeners = undefined;
- EventEmitter.defaultMaxListeners = 10;
- EventEmitter.prototype.setMaxListeners = function(n) {
- if (!isNumber(n) || n < 0 || isNaN(n))
- throw TypeError('n must be a positive number');
- this._maxListeners = n;
- return this;
- };
- EventEmitter.prototype.emit = function(type) {
- var er, handler, len, args, i, listeners;
- if (!this._events)
- this._events = {};
-
- if (type === 'error') {
- if (!this._events.error ||
- (isObject(this._events.error) && !this._events.error.length)) {
- er = arguments[1];
- if (er instanceof Error) {
- throw er;
- } else {
-
- var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
- err.context = er;
- throw err;
- }
- }
- }
- handler = this._events[type];
- if (isUndefined(handler))
- return false;
- if (isFunction(handler)) {
- switch (arguments.length) {
-
- case 1:
- handler.call(this);
- break;
- case 2:
- handler.call(this, arguments[1]);
- break;
- case 3:
- handler.call(this, arguments[1], arguments[2]);
- break;
-
- default:
- args = Array.prototype.slice.call(arguments, 1);
- handler.apply(this, args);
- }
- } else if (isObject(handler)) {
- args = Array.prototype.slice.call(arguments, 1);
- listeners = handler.slice();
- len = listeners.length;
- for (i = 0; i < len; i++)
- listeners[i].apply(this, args);
- }
- return true;
- };
- EventEmitter.prototype.addListener = function(type, listener) {
- var m;
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
- if (!this._events)
- this._events = {};
-
-
- if (this._events.newListener)
- this.emit('newListener', type,
- isFunction(listener.listener) ?
- listener.listener : listener);
- if (!this._events[type])
-
- this._events[type] = listener;
- else if (isObject(this._events[type]))
-
- this._events[type].push(listener);
- else
-
- this._events[type] = [this._events[type], listener];
-
- if (isObject(this._events[type]) && !this._events[type].warned) {
- if (!isUndefined(this._maxListeners)) {
- m = this._maxListeners;
- } else {
- m = EventEmitter.defaultMaxListeners;
- }
- if (m && m > 0 && this._events[type].length > m) {
- this._events[type].warned = true;
- console.error('(node) warning: possible EventEmitter memory ' +
- 'leak detected. %d listeners added. ' +
- 'Use emitter.setMaxListeners() to increase limit.',
- this._events[type].length);
- if (typeof console.trace === 'function') {
-
- console.trace();
- }
- }
- }
- return this;
- };
- EventEmitter.prototype.on = EventEmitter.prototype.addListener;
- EventEmitter.prototype.once = function(type, listener) {
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
- var fired = false;
- function g() {
- this.removeListener(type, g);
- if (!fired) {
- fired = true;
- listener.apply(this, arguments);
- }
- }
- g.listener = listener;
- this.on(type, g);
- return this;
- };
- EventEmitter.prototype.removeListener = function(type, listener) {
- var list, position, length, i;
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
- if (!this._events || !this._events[type])
- return this;
- list = this._events[type];
- length = list.length;
- position = -1;
- if (list === listener ||
- (isFunction(list.listener) && list.listener === listener)) {
- delete this._events[type];
- if (this._events.removeListener)
- this.emit('removeListener', type, listener);
- } else if (isObject(list)) {
- for (i = length; i-- > 0;) {
- if (list[i] === listener ||
- (list[i].listener && list[i].listener === listener)) {
- position = i;
- break;
- }
- }
- if (position < 0)
- return this;
- if (list.length === 1) {
- list.length = 0;
- delete this._events[type];
- } else {
- list.splice(position, 1);
- }
- if (this._events.removeListener)
- this.emit('removeListener', type, listener);
- }
- return this;
- };
- EventEmitter.prototype.removeAllListeners = function(type) {
- var key, listeners;
- if (!this._events)
- return this;
-
- if (!this._events.removeListener) {
- if (arguments.length === 0)
- this._events = {};
- else if (this._events[type])
- delete this._events[type];
- return this;
- }
-
- if (arguments.length === 0) {
- for (key in this._events) {
- if (key === 'removeListener') continue;
- this.removeAllListeners(key);
- }
- this.removeAllListeners('removeListener');
- this._events = {};
- return this;
- }
- listeners = this._events[type];
- if (isFunction(listeners)) {
- this.removeListener(type, listeners);
- } else if (listeners) {
-
- while (listeners.length)
- this.removeListener(type, listeners[listeners.length - 1]);
- }
- delete this._events[type];
- return this;
- };
- EventEmitter.prototype.listeners = function(type) {
- var ret;
- if (!this._events || !this._events[type])
- ret = [];
- else if (isFunction(this._events[type]))
- ret = [this._events[type]];
- else
- ret = this._events[type].slice();
- return ret;
- };
- EventEmitter.prototype.listenerCount = function(type) {
- if (this._events) {
- var evlistener = this._events[type];
- if (isFunction(evlistener))
- return 1;
- else if (evlistener)
- return evlistener.length;
- }
- return 0;
- };
- EventEmitter.listenerCount = function(emitter, type) {
- return emitter.listenerCount(type);
- };
- function isFunction(arg) {
- return typeof arg === 'function';
- }
- function isNumber(arg) {
- return typeof arg === 'number';
- }
- function isObject(arg) {
- return typeof arg === 'object' && arg !== null;
- }
- function isUndefined(arg) {
- return arg === void 0;
- }
- },{}],35:[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
- }
- },{}],36:[function(require,module,exports){
- arguments[4][24][0].apply(exports,arguments)
- },{"dup":24}],37:[function(require,module,exports){
- 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)
- }
- function isSlowBuffer (obj) {
- return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
- }
- },{}],38:[function(require,module,exports){
- var toString = {}.toString;
- module.exports = Array.isArray || function (arr) {
- return toString.call(arr) == '[object Array]';
- };
- },{}],39:[function(require,module,exports){
- 'use strict';
- var TYPED_OK = (typeof Uint8Array !== 'undefined') &&
- (typeof Uint16Array !== 'undefined') &&
- (typeof Int32Array !== 'undefined');
- function _has(obj, key) {
- return Object.prototype.hasOwnProperty.call(obj, key);
- }
- exports.assign = function (obj /*from1, from2, from3, ...*/) {
- var sources = Array.prototype.slice.call(arguments, 1);
- while (sources.length) {
- var source = sources.shift();
- if (!source) { continue; }
- if (typeof source !== 'object') {
- throw new TypeError(source + 'must be non-object');
- }
- for (var p in source) {
- if (_has(source, p)) {
- obj[p] = source[p];
- }
- }
- }
- return obj;
- };
- exports.shrinkBuf = function (buf, size) {
- if (buf.length === size) { return buf; }
- if (buf.subarray) { return buf.subarray(0, size); }
- buf.length = size;
- return buf;
- };
- var fnTyped = {
- arraySet: function (dest, src, src_offs, len, dest_offs) {
- if (src.subarray && dest.subarray) {
- dest.set(src.subarray(src_offs, src_offs + len), dest_offs);
- return;
- }
-
- for (var i = 0; i < len; i++) {
- dest[dest_offs + i] = src[src_offs + i];
- }
- },
-
- flattenChunks: function (chunks) {
- var i, l, len, pos, chunk, result;
-
- len = 0;
- for (i = 0, l = chunks.length; i < l; i++) {
- len += chunks[i].length;
- }
-
- result = new Uint8Array(len);
- pos = 0;
- for (i = 0, l = chunks.length; i < l; i++) {
- chunk = chunks[i];
- result.set(chunk, pos);
- pos += chunk.length;
- }
- return result;
- }
- };
- var fnUntyped = {
- arraySet: function (dest, src, src_offs, len, dest_offs) {
- for (var i = 0; i < len; i++) {
- dest[dest_offs + i] = src[src_offs + i];
- }
- },
-
- flattenChunks: function (chunks) {
- return [].concat.apply([], chunks);
- }
- };
- exports.setTyped = function (on) {
- if (on) {
- exports.Buf8 = Uint8Array;
- exports.Buf16 = Uint16Array;
- exports.Buf32 = Int32Array;
- exports.assign(exports, fnTyped);
- } else {
- exports.Buf8 = Array;
- exports.Buf16 = Array;
- exports.Buf32 = Array;
- exports.assign(exports, fnUntyped);
- }
- };
- exports.setTyped(TYPED_OK);
- },{}],40:[function(require,module,exports){
- 'use strict';
- function adler32(adler, buf, len, pos) {
- var s1 = (adler & 0xffff) |0,
- s2 = ((adler >>> 16) & 0xffff) |0,
- n = 0;
- while (len !== 0) {
-
-
-
- n = len > 2000 ? 2000 : len;
- len -= n;
- do {
- s1 = (s1 + buf[pos++]) |0;
- s2 = (s2 + s1) |0;
- } while (--n);
- s1 %= 65521;
- s2 %= 65521;
- }
- return (s1 | (s2 << 16)) |0;
- }
- module.exports = adler32;
- },{}],41:[function(require,module,exports){
- 'use strict';
- module.exports = {
-
- Z_NO_FLUSH: 0,
- Z_PARTIAL_FLUSH: 1,
- Z_SYNC_FLUSH: 2,
- Z_FULL_FLUSH: 3,
- Z_FINISH: 4,
- Z_BLOCK: 5,
- Z_TREES: 6,
-
- Z_OK: 0,
- Z_STREAM_END: 1,
- Z_NEED_DICT: 2,
- Z_ERRNO: -1,
- Z_STREAM_ERROR: -2,
- Z_DATA_ERROR: -3,
-
- Z_BUF_ERROR: -5,
-
-
- Z_NO_COMPRESSION: 0,
- Z_BEST_SPEED: 1,
- Z_BEST_COMPRESSION: 9,
- Z_DEFAULT_COMPRESSION: -1,
- Z_FILTERED: 1,
- Z_HUFFMAN_ONLY: 2,
- Z_RLE: 3,
- Z_FIXED: 4,
- Z_DEFAULT_STRATEGY: 0,
-
- Z_BINARY: 0,
- Z_TEXT: 1,
-
- Z_UNKNOWN: 2,
-
- Z_DEFLATED: 8
-
- };
- },{}],42:[function(require,module,exports){
- 'use strict';
- function makeTable() {
- var c, table = [];
- for (var n = 0; n < 256; n++) {
- c = n;
- for (var k = 0; k < 8; k++) {
- c = ((c & 1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
- }
- table[n] = c;
- }
- return table;
- }
- var crcTable = makeTable();
- function crc32(crc, buf, len, pos) {
- var t = crcTable,
- end = pos + len;
- crc ^= -1;
- for (var i = pos; i < end; i++) {
- crc = (crc >>> 8) ^ t[(crc ^ buf[i]) & 0xFF];
- }
- return (crc ^ (-1));
- }
- module.exports = crc32;
- },{}],43:[function(require,module,exports){
- 'use strict';
- var utils = require('../utils/common');
- var trees = require('./trees');
- var adler32 = require('./adler32');
- var crc32 = require('./crc32');
- var msg = require('./messages');
- var Z_NO_FLUSH = 0;
- var Z_PARTIAL_FLUSH = 1;
- var Z_FULL_FLUSH = 3;
- var Z_FINISH = 4;
- var Z_BLOCK = 5;
- var Z_OK = 0;
- var Z_STREAM_END = 1;
- var Z_STREAM_ERROR = -2;
- var Z_DATA_ERROR = -3;
- var Z_BUF_ERROR = -5;
- var Z_DEFAULT_COMPRESSION = -1;
- var Z_FILTERED = 1;
- var Z_HUFFMAN_ONLY = 2;
- var Z_RLE = 3;
- var Z_FIXED = 4;
- var Z_DEFAULT_STRATEGY = 0;
- var Z_UNKNOWN = 2;
- var Z_DEFLATED = 8;
- var MAX_MEM_LEVEL = 9;
- var MAX_WBITS = 15;
- var DEF_MEM_LEVEL = 8;
- var LENGTH_CODES = 29;
- var LITERALS = 256;
- var L_CODES = LITERALS + 1 + LENGTH_CODES;
- var D_CODES = 30;
- var BL_CODES = 19;
- var HEAP_SIZE = 2 * L_CODES + 1;
- var MAX_BITS = 15;
- var MIN_MATCH = 3;
- var MAX_MATCH = 258;
- var MIN_LOOKAHEAD = (MAX_MATCH + MIN_MATCH + 1);
- var PRESET_DICT = 0x20;
- var INIT_STATE = 42;
- var EXTRA_STATE = 69;
- var NAME_STATE = 73;
- var COMMENT_STATE = 91;
- var HCRC_STATE = 103;
- var BUSY_STATE = 113;
- var FINISH_STATE = 666;
- var BS_NEED_MORE = 1;
- var BS_BLOCK_DONE = 2;
- var BS_FINISH_STARTED = 3;
- var BS_FINISH_DONE = 4;
- var OS_CODE = 0x03;
- function err(strm, errorCode) {
- strm.msg = msg[errorCode];
- return errorCode;
- }
- function rank(f) {
- return ((f) << 1) - ((f) > 4 ? 9 : 0);
- }
- function zero(buf) { var len = buf.length; while (--len >= 0) { buf[len] = 0; } }
- function flush_pending(strm) {
- var s = strm.state;
-
- var len = s.pending;
- if (len > strm.avail_out) {
- len = strm.avail_out;
- }
- if (len === 0) { return; }
- utils.arraySet(strm.output, s.pending_buf, s.pending_out, len, strm.next_out);
- strm.next_out += len;
- s.pending_out += len;
- strm.total_out += len;
- strm.avail_out -= len;
- s.pending -= len;
- if (s.pending === 0) {
- s.pending_out = 0;
- }
- }
- function flush_block_only(s, last) {
- trees._tr_flush_block(s, (s.block_start >= 0 ? s.block_start : -1), s.strstart - s.block_start, last);
- s.block_start = s.strstart;
- flush_pending(s.strm);
- }
- function put_byte(s, b) {
- s.pending_buf[s.pending++] = b;
- }
- function putShortMSB(s, b) {
- s.pending_buf[s.pending++] = (b >>> 8) & 0xff;
- s.pending_buf[s.pending++] = b & 0xff;
- }
- function read_buf(strm, buf, start, size) {
- var len = strm.avail_in;
- if (len > size) { len = size; }
- if (len === 0) { return 0; }
- strm.avail_in -= len;
-
- utils.arraySet(buf, strm.input, strm.next_in, len, start);
- if (strm.state.wrap === 1) {
- strm.adler = adler32(strm.adler, buf, len, start);
- }
- else if (strm.state.wrap === 2) {
- strm.adler = crc32(strm.adler, buf, len, start);
- }
- strm.next_in += len;
- strm.total_in += len;
- return len;
- }
- function longest_match(s, cur_match) {
- var chain_length = s.max_chain_length;
- var scan = s.strstart;
- var match;
- var len;
- var best_len = s.prev_length;
- var nice_match = s.nice_match;
- var limit = (s.strstart > (s.w_size - MIN_LOOKAHEAD)) ?
- s.strstart - (s.w_size - MIN_LOOKAHEAD) : 0;
- var _win = s.window;
- var wmask = s.w_mask;
- var prev = s.prev;
-
- var strend = s.strstart + MAX_MATCH;
- var scan_end1 = _win[scan + best_len - 1];
- var scan_end = _win[scan + best_len];
-
-
-
- if (s.prev_length >= s.good_match) {
- chain_length >>= 2;
- }
-
- if (nice_match > s.lookahead) { nice_match = s.lookahead; }
-
- do {
-
- match = cur_match;
-
- if (_win[match + best_len] !== scan_end ||
- _win[match + best_len - 1] !== scan_end1 ||
- _win[match] !== _win[scan] ||
- _win[++match] !== _win[scan + 1]) {
- continue;
- }
-
- scan += 2;
- match++;
-
-
- do {
-
- } while (_win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
- _win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
- _win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
- _win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
- scan < strend);
-
- len = MAX_MATCH - (strend - scan);
- scan = strend - MAX_MATCH;
- if (len > best_len) {
- s.match_start = cur_match;
- best_len = len;
- if (len >= nice_match) {
- break;
- }
- scan_end1 = _win[scan + best_len - 1];
- scan_end = _win[scan + best_len];
- }
- } while ((cur_match = prev[cur_match & wmask]) > limit && --chain_length !== 0);
- if (best_len <= s.lookahead) {
- return best_len;
- }
- return s.lookahead;
- }
- function fill_window(s) {
- var _w_size = s.w_size;
- var p, n, m, more, str;
-
- do {
- more = s.window_size - s.lookahead - s.strstart;
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- if (s.strstart >= _w_size + (_w_size - MIN_LOOKAHEAD)) {
- utils.arraySet(s.window, s.window, _w_size, _w_size, 0);
- s.match_start -= _w_size;
- s.strstart -= _w_size;
-
- s.block_start -= _w_size;
-
- n = s.hash_size;
- p = n;
- do {
- m = s.head[--p];
- s.head[p] = (m >= _w_size ? m - _w_size : 0);
- } while (--n);
- n = _w_size;
- p = n;
- do {
- m = s.prev[--p];
- s.prev[p] = (m >= _w_size ? m - _w_size : 0);
-
- } while (--n);
- more += _w_size;
- }
- if (s.strm.avail_in === 0) {
- break;
- }
-
-
- n = read_buf(s.strm, s.window, s.strstart + s.lookahead, more);
- s.lookahead += n;
-
- if (s.lookahead + s.insert >= MIN_MATCH) {
- str = s.strstart - s.insert;
- s.ins_h = s.window[str];
-
- s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + 1]) & s.hash_mask;
- while (s.insert) {
-
- s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + MIN_MATCH - 1]) & s.hash_mask;
- s.prev[str & s.w_mask] = s.head[s.ins_h];
- s.head[s.ins_h] = str;
- str++;
- s.insert--;
- if (s.lookahead + s.insert < MIN_MATCH) {
- break;
- }
- }
- }
-
- } while (s.lookahead < MIN_LOOKAHEAD && s.strm.avail_in !== 0);
-
- }
- function deflate_stored(s, flush) {
-
- var max_block_size = 0xffff;
- if (max_block_size > s.pending_buf_size - 5) {
- max_block_size = s.pending_buf_size - 5;
- }
-
- for (;;) {
-
- if (s.lookahead <= 1) {
-
-
- fill_window(s);
- if (s.lookahead === 0 && flush === Z_NO_FLUSH) {
- return BS_NEED_MORE;
- }
- if (s.lookahead === 0) {
- break;
- }
-
- }
-
- s.strstart += s.lookahead;
- s.lookahead = 0;
-
- var max_start = s.block_start + max_block_size;
- if (s.strstart === 0 || s.strstart >= max_start) {
-
- s.lookahead = s.strstart - max_start;
- s.strstart = max_start;
-
- flush_block_only(s, false);
- if (s.strm.avail_out === 0) {
- return BS_NEED_MORE;
- }
-
- }
-
- if (s.strstart - s.block_start >= (s.w_size - MIN_LOOKAHEAD)) {
-
- flush_block_only(s, false);
- if (s.strm.avail_out === 0) {
- return BS_NEED_MORE;
- }
-
- }
- }
- s.insert = 0;
- if (flush === Z_FINISH) {
-
- flush_block_only(s, true);
- if (s.strm.avail_out === 0) {
- return BS_FINISH_STARTED;
- }
-
- return BS_FINISH_DONE;
- }
- if (s.strstart > s.block_start) {
-
- flush_block_only(s, false);
- if (s.strm.avail_out === 0) {
- return BS_NEED_MORE;
- }
-
- }
- return BS_NEED_MORE;
- }
- function deflate_fast(s, flush) {
- var hash_head;
- var bflush;
- for (;;) {
-
- if (s.lookahead < MIN_LOOKAHEAD) {
- fill_window(s);
- if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) {
- return BS_NEED_MORE;
- }
- if (s.lookahead === 0) {
- break;
- }
- }
-
- hash_head = 0;
- if (s.lookahead >= MIN_MATCH) {
-
- s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
- hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
- s.head[s.ins_h] = s.strstart;
-
- }
-
- if (hash_head !== 0 && ((s.strstart - hash_head) <= (s.w_size - MIN_LOOKAHEAD))) {
-
- s.match_length = longest_match(s, hash_head);
-
- }
- if (s.match_length >= MIN_MATCH) {
-
-
- bflush = trees._tr_tally(s, s.strstart - s.match_start, s.match_length - MIN_MATCH);
- s.lookahead -= s.match_length;
-
- if (s.match_length <= s.max_lazy_match && s.lookahead >= MIN_MATCH) {
- s.match_length--;
- do {
- s.strstart++;
-
- s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
- hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
- s.head[s.ins_h] = s.strstart;
-
-
- } while (--s.match_length !== 0);
- s.strstart++;
- } else
- {
- s.strstart += s.match_length;
- s.match_length = 0;
- s.ins_h = s.window[s.strstart];
-
- s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + 1]) & s.hash_mask;
-
- }
- } else {
-
-
-
- bflush = trees._tr_tally(s, 0, s.window[s.strstart]);
- s.lookahead--;
- s.strstart++;
- }
- if (bflush) {
-
- flush_block_only(s, false);
- if (s.strm.avail_out === 0) {
- return BS_NEED_MORE;
- }
-
- }
- }
- s.insert = ((s.strstart < (MIN_MATCH - 1)) ? s.strstart : MIN_MATCH - 1);
- if (flush === Z_FINISH) {
-
- flush_block_only(s, true);
- if (s.strm.avail_out === 0) {
- return BS_FINISH_STARTED;
- }
-
- return BS_FINISH_DONE;
- }
- if (s.last_lit) {
-
- flush_block_only(s, false);
- if (s.strm.avail_out === 0) {
- return BS_NEED_MORE;
- }
-
- }
- return BS_BLOCK_DONE;
- }
- function deflate_slow(s, flush) {
- var hash_head;
- var bflush;
- var max_insert;
-
- for (;;) {
-
- if (s.lookahead < MIN_LOOKAHEAD) {
- fill_window(s);
- if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) {
- return BS_NEED_MORE;
- }
- if (s.lookahead === 0) { break; }
- }
-
- hash_head = 0;
- if (s.lookahead >= MIN_MATCH) {
-
- s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
- hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
- s.head[s.ins_h] = s.strstart;
-
- }
-
- s.prev_length = s.match_length;
- s.prev_match = s.match_start;
- s.match_length = MIN_MATCH - 1;
- if (hash_head !== 0 && s.prev_length < s.max_lazy_match &&
- s.strstart - hash_head <= (s.w_size - MIN_LOOKAHEAD)) {
-
- s.match_length = longest_match(s, hash_head);
-
- if (s.match_length <= 5 &&
- (s.strategy === Z_FILTERED || (s.match_length === MIN_MATCH && s.strstart - s.match_start > 4096))) {
-
- s.match_length = MIN_MATCH - 1;
- }
- }
-
- if (s.prev_length >= MIN_MATCH && s.match_length <= s.prev_length) {
- max_insert = s.strstart + s.lookahead - MIN_MATCH;
-
-
-
- bflush = trees._tr_tally(s, s.strstart - 1 - s.prev_match, s.prev_length - MIN_MATCH);
-
- s.lookahead -= s.prev_length - 1;
- s.prev_length -= 2;
- do {
- if (++s.strstart <= max_insert) {
-
- s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
- hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
- s.head[s.ins_h] = s.strstart;
-
- }
- } while (--s.prev_length !== 0);
- s.match_available = 0;
- s.match_length = MIN_MATCH - 1;
- s.strstart++;
- if (bflush) {
-
- flush_block_only(s, false);
- if (s.strm.avail_out === 0) {
- return BS_NEED_MORE;
- }
-
- }
- } else if (s.match_available) {
-
-
-
- bflush = trees._tr_tally(s, 0, s.window[s.strstart - 1]);
- if (bflush) {
-
- flush_block_only(s, false);
-
- }
- s.strstart++;
- s.lookahead--;
- if (s.strm.avail_out === 0) {
- return BS_NEED_MORE;
- }
- } else {
-
- s.match_available = 1;
- s.strstart++;
- s.lookahead--;
- }
- }
-
- if (s.match_available) {
-
-
- bflush = trees._tr_tally(s, 0, s.window[s.strstart - 1]);
- s.match_available = 0;
- }
- s.insert = s.strstart < MIN_MATCH - 1 ? s.strstart : MIN_MATCH - 1;
- if (flush === Z_FINISH) {
-
- flush_block_only(s, true);
- if (s.strm.avail_out === 0) {
- return BS_FINISH_STARTED;
- }
-
- return BS_FINISH_DONE;
- }
- if (s.last_lit) {
-
- flush_block_only(s, false);
- if (s.strm.avail_out === 0) {
- return BS_NEED_MORE;
- }
-
- }
- return BS_BLOCK_DONE;
- }
- function deflate_rle(s, flush) {
- var bflush;
- var prev;
- var scan, strend;
- var _win = s.window;
- for (;;) {
-
- if (s.lookahead <= MAX_MATCH) {
- fill_window(s);
- if (s.lookahead <= MAX_MATCH && flush === Z_NO_FLUSH) {
- return BS_NEED_MORE;
- }
- if (s.lookahead === 0) { break; }
- }
-
- s.match_length = 0;
- if (s.lookahead >= MIN_MATCH && s.strstart > 0) {
- scan = s.strstart - 1;
- prev = _win[scan];
- if (prev === _win[++scan] && prev === _win[++scan] && prev === _win[++scan]) {
- strend = s.strstart + MAX_MATCH;
- do {
-
- } while (prev === _win[++scan] && prev === _win[++scan] &&
- prev === _win[++scan] && prev === _win[++scan] &&
- prev === _win[++scan] && prev === _win[++scan] &&
- prev === _win[++scan] && prev === _win[++scan] &&
- scan < strend);
- s.match_length = MAX_MATCH - (strend - scan);
- if (s.match_length > s.lookahead) {
- s.match_length = s.lookahead;
- }
- }
-
- }
-
- if (s.match_length >= MIN_MATCH) {
-
-
- bflush = trees._tr_tally(s, 1, s.match_length - MIN_MATCH);
- s.lookahead -= s.match_length;
- s.strstart += s.match_length;
- s.match_length = 0;
- } else {
-
-
-
- bflush = trees._tr_tally(s, 0, s.window[s.strstart]);
- s.lookahead--;
- s.strstart++;
- }
- if (bflush) {
-
- flush_block_only(s, false);
- if (s.strm.avail_out === 0) {
- return BS_NEED_MORE;
- }
-
- }
- }
- s.insert = 0;
- if (flush === Z_FINISH) {
-
- flush_block_only(s, true);
- if (s.strm.avail_out === 0) {
- return BS_FINISH_STARTED;
- }
-
- return BS_FINISH_DONE;
- }
- if (s.last_lit) {
-
- flush_block_only(s, false);
- if (s.strm.avail_out === 0) {
- return BS_NEED_MORE;
- }
-
- }
- return BS_BLOCK_DONE;
- }
- function deflate_huff(s, flush) {
- var bflush;
- for (;;) {
-
- if (s.lookahead === 0) {
- fill_window(s);
- if (s.lookahead === 0) {
- if (flush === Z_NO_FLUSH) {
- return BS_NEED_MORE;
- }
- break;
- }
- }
-
- s.match_length = 0;
-
-
- bflush = trees._tr_tally(s, 0, s.window[s.strstart]);
- s.lookahead--;
- s.strstart++;
- if (bflush) {
-
- flush_block_only(s, false);
- if (s.strm.avail_out === 0) {
- return BS_NEED_MORE;
- }
-
- }
- }
- s.insert = 0;
- if (flush === Z_FINISH) {
-
- flush_block_only(s, true);
- if (s.strm.avail_out === 0) {
- return BS_FINISH_STARTED;
- }
-
- return BS_FINISH_DONE;
- }
- if (s.last_lit) {
-
- flush_block_only(s, false);
- if (s.strm.avail_out === 0) {
- return BS_NEED_MORE;
- }
-
- }
- return BS_BLOCK_DONE;
- }
- function Config(good_length, max_lazy, nice_length, max_chain, func) {
- this.good_length = good_length;
- this.max_lazy = max_lazy;
- this.nice_length = nice_length;
- this.max_chain = max_chain;
- this.func = func;
- }
- var configuration_table;
- configuration_table = [
-
- new Config(0, 0, 0, 0, deflate_stored),
- new Config(4, 4, 8, 4, deflate_fast),
- new Config(4, 5, 16, 8, deflate_fast),
- new Config(4, 6, 32, 32, deflate_fast),
- new Config(4, 4, 16, 16, deflate_slow),
- new Config(8, 16, 32, 32, deflate_slow),
- new Config(8, 16, 128, 128, deflate_slow),
- new Config(8, 32, 128, 256, deflate_slow),
- new Config(32, 128, 258, 1024, deflate_slow),
- new Config(32, 258, 258, 4096, deflate_slow)
- ];
- function lm_init(s) {
- s.window_size = 2 * s.w_size;
-
- zero(s.head);
-
- s.max_lazy_match = configuration_table[s.level].max_lazy;
- s.good_match = configuration_table[s.level].good_length;
- s.nice_match = configuration_table[s.level].nice_length;
- s.max_chain_length = configuration_table[s.level].max_chain;
- s.strstart = 0;
- s.block_start = 0;
- s.lookahead = 0;
- s.insert = 0;
- s.match_length = s.prev_length = MIN_MATCH - 1;
- s.match_available = 0;
- s.ins_h = 0;
- }
- function DeflateState() {
- this.strm = null;
- this.status = 0;
- this.pending_buf = null;
- this.pending_buf_size = 0;
- this.pending_out = 0;
- this.pending = 0;
- this.wrap = 0;
- this.gzhead = null;
- this.gzindex = 0;
- this.method = Z_DEFLATED;
- this.last_flush = -1;
- this.w_size = 0;
- this.w_bits = 0;
- this.w_mask = 0;
- this.window = null;
-
- this.window_size = 0;
-
- this.prev = null;
-
- this.head = null;
- this.ins_h = 0;
- this.hash_size = 0;
- this.hash_bits = 0;
- this.hash_mask = 0;
- this.hash_shift = 0;
-
- this.block_start = 0;
-
- this.match_length = 0;
- this.prev_match = 0;
- this.match_available = 0;
- this.strstart = 0;
- this.match_start = 0;
- this.lookahead = 0;
- this.prev_length = 0;
-
- this.max_chain_length = 0;
-
- this.max_lazy_match = 0;
-
-
-
-
- this.level = 0;
- this.strategy = 0;
- this.good_match = 0;
-
- this.nice_match = 0;
-
-
-
-
-
-
-
- this.dyn_ltree = new utils.Buf16(HEAP_SIZE * 2);
- this.dyn_dtree = new utils.Buf16((2 * D_CODES + 1) * 2);
- this.bl_tree = new utils.Buf16((2 * BL_CODES + 1) * 2);
- zero(this.dyn_ltree);
- zero(this.dyn_dtree);
- zero(this.bl_tree);
- this.l_desc = null;
- this.d_desc = null;
- this.bl_desc = null;
-
- this.bl_count = new utils.Buf16(MAX_BITS + 1);
-
-
- this.heap = new utils.Buf16(2 * L_CODES + 1);
- zero(this.heap);
- this.heap_len = 0;
- this.heap_max = 0;
-
- this.depth = new utils.Buf16(2 * L_CODES + 1);
- zero(this.depth);
-
- this.l_buf = 0;
- this.lit_bufsize = 0;
-
- this.last_lit = 0;
- this.d_buf = 0;
-
- this.opt_len = 0;
- this.static_len = 0;
- this.matches = 0;
- this.insert = 0;
- this.bi_buf = 0;
-
- this.bi_valid = 0;
-
-
-
-
-
- }
- function deflateResetKeep(strm) {
- var s;
- if (!strm || !strm.state) {
- return err(strm, Z_STREAM_ERROR);
- }
- strm.total_in = strm.total_out = 0;
- strm.data_type = Z_UNKNOWN;
- s = strm.state;
- s.pending = 0;
- s.pending_out = 0;
- if (s.wrap < 0) {
- s.wrap = -s.wrap;
-
- }
- s.status = (s.wrap ? INIT_STATE : BUSY_STATE);
- strm.adler = (s.wrap === 2) ?
- 0
- :
- 1;
- s.last_flush = Z_NO_FLUSH;
- trees._tr_init(s);
- return Z_OK;
- }
- function deflateReset(strm) {
- var ret = deflateResetKeep(strm);
- if (ret === Z_OK) {
- lm_init(strm.state);
- }
- return ret;
- }
- function deflateSetHeader(strm, head) {
- if (!strm || !strm.state) { return Z_STREAM_ERROR; }
- if (strm.state.wrap !== 2) { return Z_STREAM_ERROR; }
- strm.state.gzhead = head;
- return Z_OK;
- }
- function deflateInit2(strm, level, method, windowBits, memLevel, strategy) {
- if (!strm) {
- return Z_STREAM_ERROR;
- }
- var wrap = 1;
- if (level === Z_DEFAULT_COMPRESSION) {
- level = 6;
- }
- if (windowBits < 0) {
- wrap = 0;
- windowBits = -windowBits;
- }
- else if (windowBits > 15) {
- wrap = 2;
- windowBits -= 16;
- }
- if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method !== Z_DEFLATED ||
- windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
- strategy < 0 || strategy > Z_FIXED) {
- return err(strm, Z_STREAM_ERROR);
- }
- if (windowBits === 8) {
- windowBits = 9;
- }
-
- var s = new DeflateState();
- strm.state = s;
- s.strm = strm;
- s.wrap = wrap;
- s.gzhead = null;
- s.w_bits = windowBits;
- s.w_size = 1 << s.w_bits;
- s.w_mask = s.w_size - 1;
- s.hash_bits = memLevel + 7;
- s.hash_size = 1 << s.hash_bits;
- s.hash_mask = s.hash_size - 1;
- s.hash_shift = ~~((s.hash_bits + MIN_MATCH - 1) / MIN_MATCH);
- s.window = new utils.Buf8(s.w_size * 2);
- s.head = new utils.Buf16(s.hash_size);
- s.prev = new utils.Buf16(s.w_size);
-
-
- s.lit_bufsize = 1 << (memLevel + 6);
- s.pending_buf_size = s.lit_bufsize * 4;
-
-
- s.pending_buf = new utils.Buf8(s.pending_buf_size);
-
-
- s.d_buf = 1 * s.lit_bufsize;
-
- s.l_buf = (1 + 2) * s.lit_bufsize;
- s.level = level;
- s.strategy = strategy;
- s.method = method;
- return deflateReset(strm);
- }
- function deflateInit(strm, level) {
- return deflateInit2(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY);
- }
- function deflate(strm, flush) {
- var old_flush, s;
- var beg, val;
- if (!strm || !strm.state ||
- flush > Z_BLOCK || flush < 0) {
- return strm ? err(strm, Z_STREAM_ERROR) : Z_STREAM_ERROR;
- }
- s = strm.state;
- if (!strm.output ||
- (!strm.input && strm.avail_in !== 0) ||
- (s.status === FINISH_STATE && flush !== Z_FINISH)) {
- return err(strm, (strm.avail_out === 0) ? Z_BUF_ERROR : Z_STREAM_ERROR);
- }
- s.strm = strm;
- old_flush = s.last_flush;
- s.last_flush = flush;
-
- if (s.status === INIT_STATE) {
- if (s.wrap === 2) {
- strm.adler = 0;
- put_byte(s, 31);
- put_byte(s, 139);
- put_byte(s, 8);
- if (!s.gzhead) {
- put_byte(s, 0);
- put_byte(s, 0);
- put_byte(s, 0);
- put_byte(s, 0);
- put_byte(s, 0);
- put_byte(s, s.level === 9 ? 2 :
- (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2 ?
- 4 : 0));
- put_byte(s, OS_CODE);
- s.status = BUSY_STATE;
- }
- else {
- put_byte(s, (s.gzhead.text ? 1 : 0) +
- (s.gzhead.hcrc ? 2 : 0) +
- (!s.gzhead.extra ? 0 : 4) +
- (!s.gzhead.name ? 0 : 8) +
- (!s.gzhead.comment ? 0 : 16)
- );
- put_byte(s, s.gzhead.time & 0xff);
- put_byte(s, (s.gzhead.time >> 8) & 0xff);
- put_byte(s, (s.gzhead.time >> 16) & 0xff);
- put_byte(s, (s.gzhead.time >> 24) & 0xff);
- put_byte(s, s.level === 9 ? 2 :
- (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2 ?
- 4 : 0));
- put_byte(s, s.gzhead.os & 0xff);
- if (s.gzhead.extra && s.gzhead.extra.length) {
- put_byte(s, s.gzhead.extra.length & 0xff);
- put_byte(s, (s.gzhead.extra.length >> 8) & 0xff);
- }
- if (s.gzhead.hcrc) {
- strm.adler = crc32(strm.adler, s.pending_buf, s.pending, 0);
- }
- s.gzindex = 0;
- s.status = EXTRA_STATE;
- }
- }
- else
- {
- var header = (Z_DEFLATED + ((s.w_bits - 8) << 4)) << 8;
- var level_flags = -1;
- if (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2) {
- level_flags = 0;
- } else if (s.level < 6) {
- level_flags = 1;
- } else if (s.level === 6) {
- level_flags = 2;
- } else {
- level_flags = 3;
- }
- header |= (level_flags << 6);
- if (s.strstart !== 0) { header |= PRESET_DICT; }
- header += 31 - (header % 31);
- s.status = BUSY_STATE;
- putShortMSB(s, header);
-
- if (s.strstart !== 0) {
- putShortMSB(s, strm.adler >>> 16);
- putShortMSB(s, strm.adler & 0xffff);
- }
- strm.adler = 1;
- }
- }
- if (s.status === EXTRA_STATE) {
- if (s.gzhead.extra) {
- beg = s.pending;
- while (s.gzindex < (s.gzhead.extra.length & 0xffff)) {
- if (s.pending === s.pending_buf_size) {
- if (s.gzhead.hcrc && s.pending > beg) {
- strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
- }
- flush_pending(strm);
- beg = s.pending;
- if (s.pending === s.pending_buf_size) {
- break;
- }
- }
- put_byte(s, s.gzhead.extra[s.gzindex] & 0xff);
- s.gzindex++;
- }
- if (s.gzhead.hcrc && s.pending > beg) {
- strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
- }
- if (s.gzindex === s.gzhead.extra.length) {
- s.gzindex = 0;
- s.status = NAME_STATE;
- }
- }
- else {
- s.status = NAME_STATE;
- }
- }
- if (s.status === NAME_STATE) {
- if (s.gzhead.name) {
- beg = s.pending;
-
- do {
- if (s.pending === s.pending_buf_size) {
- if (s.gzhead.hcrc && s.pending > beg) {
- strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
- }
- flush_pending(strm);
- beg = s.pending;
- if (s.pending === s.pending_buf_size) {
- val = 1;
- break;
- }
- }
-
- if (s.gzindex < s.gzhead.name.length) {
- val = s.gzhead.name.charCodeAt(s.gzindex++) & 0xff;
- } else {
- val = 0;
- }
- put_byte(s, val);
- } while (val !== 0);
- if (s.gzhead.hcrc && s.pending > beg) {
- strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
- }
- if (val === 0) {
- s.gzindex = 0;
- s.status = COMMENT_STATE;
- }
- }
- else {
- s.status = COMMENT_STATE;
- }
- }
- if (s.status === COMMENT_STATE) {
- if (s.gzhead.comment) {
- beg = s.pending;
-
- do {
- if (s.pending === s.pending_buf_size) {
- if (s.gzhead.hcrc && s.pending > beg) {
- strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
- }
- flush_pending(strm);
- beg = s.pending;
- if (s.pending === s.pending_buf_size) {
- val = 1;
- break;
- }
- }
-
- if (s.gzindex < s.gzhead.comment.length) {
- val = s.gzhead.comment.charCodeAt(s.gzindex++) & 0xff;
- } else {
- val = 0;
- }
- put_byte(s, val);
- } while (val !== 0);
- if (s.gzhead.hcrc && s.pending > beg) {
- strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
- }
- if (val === 0) {
- s.status = HCRC_STATE;
- }
- }
- else {
- s.status = HCRC_STATE;
- }
- }
- if (s.status === HCRC_STATE) {
- if (s.gzhead.hcrc) {
- if (s.pending + 2 > s.pending_buf_size) {
- flush_pending(strm);
- }
- if (s.pending + 2 <= s.pending_buf_size) {
- put_byte(s, strm.adler & 0xff);
- put_byte(s, (strm.adler >> 8) & 0xff);
- strm.adler = 0;
- s.status = BUSY_STATE;
- }
- }
- else {
- s.status = BUSY_STATE;
- }
- }
-
- if (s.pending !== 0) {
- flush_pending(strm);
- if (strm.avail_out === 0) {
-
- s.last_flush = -1;
- return Z_OK;
- }
-
- } else if (strm.avail_in === 0 && rank(flush) <= rank(old_flush) &&
- flush !== Z_FINISH) {
- return err(strm, Z_BUF_ERROR);
- }
-
- if (s.status === FINISH_STATE && strm.avail_in !== 0) {
- return err(strm, Z_BUF_ERROR);
- }
-
- if (strm.avail_in !== 0 || s.lookahead !== 0 ||
- (flush !== Z_NO_FLUSH && s.status !== FINISH_STATE)) {
- var bstate = (s.strategy === Z_HUFFMAN_ONLY) ? deflate_huff(s, flush) :
- (s.strategy === Z_RLE ? deflate_rle(s, flush) :
- configuration_table[s.level].func(s, flush));
- if (bstate === BS_FINISH_STARTED || bstate === BS_FINISH_DONE) {
- s.status = FINISH_STATE;
- }
- if (bstate === BS_NEED_MORE || bstate === BS_FINISH_STARTED) {
- if (strm.avail_out === 0) {
- s.last_flush = -1;
-
- }
- return Z_OK;
-
- }
- if (bstate === BS_BLOCK_DONE) {
- if (flush === Z_PARTIAL_FLUSH) {
- trees._tr_align(s);
- }
- else if (flush !== Z_BLOCK) {
- trees._tr_stored_block(s, 0, 0, false);
-
- if (flush === Z_FULL_FLUSH) {
-
- zero(s.head);
- if (s.lookahead === 0) {
- s.strstart = 0;
- s.block_start = 0;
- s.insert = 0;
- }
- }
- }
- flush_pending(strm);
- if (strm.avail_out === 0) {
- s.last_flush = -1;
- return Z_OK;
- }
- }
- }
-
-
- if (flush !== Z_FINISH) { return Z_OK; }
- if (s.wrap <= 0) { return Z_STREAM_END; }
-
- if (s.wrap === 2) {
- put_byte(s, strm.adler & 0xff);
- put_byte(s, (strm.adler >> 8) & 0xff);
- put_byte(s, (strm.adler >> 16) & 0xff);
- put_byte(s, (strm.adler >> 24) & 0xff);
- put_byte(s, strm.total_in & 0xff);
- put_byte(s, (strm.total_in >> 8) & 0xff);
- put_byte(s, (strm.total_in >> 16) & 0xff);
- put_byte(s, (strm.total_in >> 24) & 0xff);
- }
- else
- {
- putShortMSB(s, strm.adler >>> 16);
- putShortMSB(s, strm.adler & 0xffff);
- }
- flush_pending(strm);
-
- if (s.wrap > 0) { s.wrap = -s.wrap; }
-
- return s.pending !== 0 ? Z_OK : Z_STREAM_END;
- }
- function deflateEnd(strm) {
- var status;
- if (!strm || !strm.state) {
- return Z_STREAM_ERROR;
- }
- status = strm.state.status;
- if (status !== INIT_STATE &&
- status !== EXTRA_STATE &&
- status !== NAME_STATE &&
- status !== COMMENT_STATE &&
- status !== HCRC_STATE &&
- status !== BUSY_STATE &&
- status !== FINISH_STATE
- ) {
- return err(strm, Z_STREAM_ERROR);
- }
- strm.state = null;
- return status === BUSY_STATE ? err(strm, Z_DATA_ERROR) : Z_OK;
- }
- function deflateSetDictionary(strm, dictionary) {
- var dictLength = dictionary.length;
- var s;
- var str, n;
- var wrap;
- var avail;
- var next;
- var input;
- var tmpDict;
- if (!strm || !strm.state) {
- return Z_STREAM_ERROR;
- }
- s = strm.state;
- wrap = s.wrap;
- if (wrap === 2 || (wrap === 1 && s.status !== INIT_STATE) || s.lookahead) {
- return Z_STREAM_ERROR;
- }
-
- if (wrap === 1) {
-
- strm.adler = adler32(strm.adler, dictionary, dictLength, 0);
- }
- s.wrap = 0;
-
- if (dictLength >= s.w_size) {
- if (wrap === 0) {
-
- zero(s.head);
- s.strstart = 0;
- s.block_start = 0;
- s.insert = 0;
- }
-
-
- tmpDict = new utils.Buf8(s.w_size);
- utils.arraySet(tmpDict, dictionary, dictLength - s.w_size, s.w_size, 0);
- dictionary = tmpDict;
- dictLength = s.w_size;
- }
-
- avail = strm.avail_in;
- next = strm.next_in;
- input = strm.input;
- strm.avail_in = dictLength;
- strm.next_in = 0;
- strm.input = dictionary;
- fill_window(s);
- while (s.lookahead >= MIN_MATCH) {
- str = s.strstart;
- n = s.lookahead - (MIN_MATCH - 1);
- do {
-
- s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + MIN_MATCH - 1]) & s.hash_mask;
- s.prev[str & s.w_mask] = s.head[s.ins_h];
- s.head[s.ins_h] = str;
- str++;
- } while (--n);
- s.strstart = str;
- s.lookahead = MIN_MATCH - 1;
- fill_window(s);
- }
- s.strstart += s.lookahead;
- s.block_start = s.strstart;
- s.insert = s.lookahead;
- s.lookahead = 0;
- s.match_length = s.prev_length = MIN_MATCH - 1;
- s.match_available = 0;
- strm.next_in = next;
- strm.input = input;
- strm.avail_in = avail;
- s.wrap = wrap;
- return Z_OK;
- }
- exports.deflateInit = deflateInit;
- exports.deflateInit2 = deflateInit2;
- exports.deflateReset = deflateReset;
- exports.deflateResetKeep = deflateResetKeep;
- exports.deflateSetHeader = deflateSetHeader;
- exports.deflate = deflate;
- exports.deflateEnd = deflateEnd;
- exports.deflateSetDictionary = deflateSetDictionary;
- exports.deflateInfo = 'pako deflate (from Nodeca project)';
- },{"../utils/common":39,"./adler32":40,"./crc32":42,"./messages":47,"./trees":48}],44:[function(require,module,exports){
- 'use strict';
- var BAD = 30;
- var TYPE = 12;
- module.exports = function inflate_fast(strm, start) {
- var state;
- var _in;
- var last;
- var _out;
- var beg;
- var end;
- var dmax;
- var wsize;
- var whave;
- var wnext;
-
- var s_window;
- var hold;
- var bits;
- var lcode;
- var dcode;
- var lmask;
- var dmask;
- var here;
- var op;
-
- var len;
- var dist;
- var from;
- var from_source;
- var input, output;
-
- state = strm.state;
-
- _in = strm.next_in;
- input = strm.input;
- last = _in + (strm.avail_in - 5);
- _out = strm.next_out;
- output = strm.output;
- beg = _out - (start - strm.avail_out);
- end = _out + (strm.avail_out - 257);
- dmax = state.dmax;
- wsize = state.wsize;
- whave = state.whave;
- wnext = state.wnext;
- s_window = state.window;
- hold = state.hold;
- bits = state.bits;
- lcode = state.lencode;
- dcode = state.distcode;
- lmask = (1 << state.lenbits) - 1;
- dmask = (1 << state.distbits) - 1;
-
- top:
- do {
- if (bits < 15) {
- hold += input[_in++] << bits;
- bits += 8;
- hold += input[_in++] << bits;
- bits += 8;
- }
- here = lcode[hold & lmask];
- dolen:
- for (;;) {
- op = here >>> 24;
- hold >>>= op;
- bits -= op;
- op = (here >>> 16) & 0xff;
- if (op === 0) {
-
-
-
- output[_out++] = here & 0xffff;
- }
- else if (op & 16) {
- len = here & 0xffff;
- op &= 15;
- if (op) {
- if (bits < op) {
- hold += input[_in++] << bits;
- bits += 8;
- }
- len += hold & ((1 << op) - 1);
- hold >>>= op;
- bits -= op;
- }
-
- if (bits < 15) {
- hold += input[_in++] << bits;
- bits += 8;
- hold += input[_in++] << bits;
- bits += 8;
- }
- here = dcode[hold & dmask];
- dodist:
- for (;;) {
- op = here >>> 24;
- hold >>>= op;
- bits -= op;
- op = (here >>> 16) & 0xff;
- if (op & 16) {
- dist = here & 0xffff;
- op &= 15;
- if (bits < op) {
- hold += input[_in++] << bits;
- bits += 8;
- if (bits < op) {
- hold += input[_in++] << bits;
- bits += 8;
- }
- }
- dist += hold & ((1 << op) - 1);
- if (dist > dmax) {
- strm.msg = 'invalid distance too far back';
- state.mode = BAD;
- break top;
- }
- hold >>>= op;
- bits -= op;
-
- op = _out - beg;
- if (dist > op) {
- op = dist - op;
- if (op > whave) {
- if (state.sane) {
- strm.msg = 'invalid distance too far back';
- state.mode = BAD;
- break top;
- }
- }
- from = 0;
- from_source = s_window;
- if (wnext === 0) {
- from += wsize - op;
- if (op < len) {
- len -= op;
- do {
- output[_out++] = s_window[from++];
- } while (--op);
- from = _out - dist;
- from_source = output;
- }
- }
- else if (wnext < op) {
- from += wsize + wnext - op;
- op -= wnext;
- if (op < len) {
- len -= op;
- do {
- output[_out++] = s_window[from++];
- } while (--op);
- from = 0;
- if (wnext < len) {
- op = wnext;
- len -= op;
- do {
- output[_out++] = s_window[from++];
- } while (--op);
- from = _out - dist;
- from_source = output;
- }
- }
- }
- else {
- from += wnext - op;
- if (op < len) {
- len -= op;
- do {
- output[_out++] = s_window[from++];
- } while (--op);
- from = _out - dist;
- from_source = output;
- }
- }
- while (len > 2) {
- output[_out++] = from_source[from++];
- output[_out++] = from_source[from++];
- output[_out++] = from_source[from++];
- len -= 3;
- }
- if (len) {
- output[_out++] = from_source[from++];
- if (len > 1) {
- output[_out++] = from_source[from++];
- }
- }
- }
- else {
- from = _out - dist;
- do {
- output[_out++] = output[from++];
- output[_out++] = output[from++];
- output[_out++] = output[from++];
- len -= 3;
- } while (len > 2);
- if (len) {
- output[_out++] = output[from++];
- if (len > 1) {
- output[_out++] = output[from++];
- }
- }
- }
- }
- else if ((op & 64) === 0) {
- here = dcode[(here & 0xffff) + (hold & ((1 << op) - 1))];
- continue dodist;
- }
- else {
- strm.msg = 'invalid distance code';
- state.mode = BAD;
- break top;
- }
- break;
- }
- }
- else if ((op & 64) === 0) {
- here = lcode[(here & 0xffff) + (hold & ((1 << op) - 1))];
- continue dolen;
- }
- else if (op & 32) {
-
- state.mode = TYPE;
- break top;
- }
- else {
- strm.msg = 'invalid literal/length code';
- state.mode = BAD;
- break top;
- }
- break;
- }
- } while (_in < last && _out < end);
-
- len = bits >> 3;
- _in -= len;
- bits -= len << 3;
- hold &= (1 << bits) - 1;
-
- strm.next_in = _in;
- strm.next_out = _out;
- strm.avail_in = (_in < last ? 5 + (last - _in) : 5 - (_in - last));
- strm.avail_out = (_out < end ? 257 + (end - _out) : 257 - (_out - end));
- state.hold = hold;
- state.bits = bits;
- return;
- };
- },{}],45:[function(require,module,exports){
- 'use strict';
- var utils = require('../utils/common');
- var adler32 = require('./adler32');
- var crc32 = require('./crc32');
- var inflate_fast = require('./inffast');
- var inflate_table = require('./inftrees');
- var CODES = 0;
- var LENS = 1;
- var DISTS = 2;
- var Z_FINISH = 4;
- var Z_BLOCK = 5;
- var Z_TREES = 6;
- var Z_OK = 0;
- var Z_STREAM_END = 1;
- var Z_NEED_DICT = 2;
- var Z_STREAM_ERROR = -2;
- var Z_DATA_ERROR = -3;
- var Z_MEM_ERROR = -4;
- var Z_BUF_ERROR = -5;
- var Z_DEFLATED = 8;
- var HEAD = 1;
- var FLAGS = 2;
- var TIME = 3;
- var OS = 4;
- var EXLEN = 5;
- var EXTRA = 6;
- var NAME = 7;
- var COMMENT = 8;
- var HCRC = 9;
- var DICTID = 10;
- var DICT = 11;
- var TYPE = 12;
- var TYPEDO = 13;
- var STORED = 14;
- var COPY_ = 15;
- var COPY = 16;
- var TABLE = 17;
- var LENLENS = 18;
- var CODELENS = 19;
- var LEN_ = 20;
- var LEN = 21;
- var LENEXT = 22;
- var DIST = 23;
- var DISTEXT = 24;
- var MATCH = 25;
- var LIT = 26;
- var CHECK = 27;
- var LENGTH = 28;
- var DONE = 29;
- var BAD = 30;
- var MEM = 31;
- var SYNC = 32;
- var ENOUGH_LENS = 852;
- var ENOUGH_DISTS = 592;
- var MAX_WBITS = 15;
- var DEF_WBITS = MAX_WBITS;
- function zswap32(q) {
- return (((q >>> 24) & 0xff) +
- ((q >>> 8) & 0xff00) +
- ((q & 0xff00) << 8) +
- ((q & 0xff) << 24));
- }
- function InflateState() {
- this.mode = 0;
- this.last = false;
- this.wrap = 0;
- this.havedict = false;
- this.flags = 0;
- this.dmax = 0;
- this.check = 0;
- this.total = 0;
-
- this.head = null;
-
- this.wbits = 0;
- this.wsize = 0;
- this.whave = 0;
- this.wnext = 0;
- this.window = null;
-
- this.hold = 0;
- this.bits = 0;
-
- this.length = 0;
- this.offset = 0;
-
- this.extra = 0;
-
- this.lencode = null;
- this.distcode = null;
- this.lenbits = 0;
- this.distbits = 0;
-
- this.ncode = 0;
- this.nlen = 0;
- this.ndist = 0;
- this.have = 0;
- this.next = null;
- this.lens = new utils.Buf16(320);
- this.work = new utils.Buf16(288);
-
-
- this.lendyn = null;
- this.distdyn = null;
- this.sane = 0;
- this.back = 0;
- this.was = 0;
- }
- function inflateResetKeep(strm) {
- var state;
- if (!strm || !strm.state) { return Z_STREAM_ERROR; }
- state = strm.state;
- strm.total_in = strm.total_out = state.total = 0;
- strm.msg = '';
- if (state.wrap) {
- strm.adler = state.wrap & 1;
- }
- state.mode = HEAD;
- state.last = 0;
- state.havedict = 0;
- state.dmax = 32768;
- state.head = null;
- state.hold = 0;
- state.bits = 0;
-
- state.lencode = state.lendyn = new utils.Buf32(ENOUGH_LENS);
- state.distcode = state.distdyn = new utils.Buf32(ENOUGH_DISTS);
- state.sane = 1;
- state.back = -1;
-
- return Z_OK;
- }
- function inflateReset(strm) {
- var state;
- if (!strm || !strm.state) { return Z_STREAM_ERROR; }
- state = strm.state;
- state.wsize = 0;
- state.whave = 0;
- state.wnext = 0;
- return inflateResetKeep(strm);
- }
- function inflateReset2(strm, windowBits) {
- var wrap;
- var state;
-
- if (!strm || !strm.state) { return Z_STREAM_ERROR; }
- state = strm.state;
-
- if (windowBits < 0) {
- wrap = 0;
- windowBits = -windowBits;
- }
- else {
- wrap = (windowBits >> 4) + 1;
- if (windowBits < 48) {
- windowBits &= 15;
- }
- }
-
- if (windowBits && (windowBits < 8 || windowBits > 15)) {
- return Z_STREAM_ERROR;
- }
- if (state.window !== null && state.wbits !== windowBits) {
- state.window = null;
- }
-
- state.wrap = wrap;
- state.wbits = windowBits;
- return inflateReset(strm);
- }
- function inflateInit2(strm, windowBits) {
- var ret;
- var state;
- if (!strm) { return Z_STREAM_ERROR; }
-
- state = new InflateState();
-
-
- strm.state = state;
- state.window = null;
- ret = inflateReset2(strm, windowBits);
- if (ret !== Z_OK) {
- strm.state = null;
- }
- return ret;
- }
- function inflateInit(strm) {
- return inflateInit2(strm, DEF_WBITS);
- }
- var virgin = true;
- var lenfix, distfix;
- function fixedtables(state) {
-
- if (virgin) {
- var sym;
- lenfix = new utils.Buf32(512);
- distfix = new utils.Buf32(32);
-
- sym = 0;
- while (sym < 144) { state.lens[sym++] = 8; }
- while (sym < 256) { state.lens[sym++] = 9; }
- while (sym < 280) { state.lens[sym++] = 7; }
- while (sym < 288) { state.lens[sym++] = 8; }
- inflate_table(LENS, state.lens, 0, 288, lenfix, 0, state.work, { bits: 9 });
-
- sym = 0;
- while (sym < 32) { state.lens[sym++] = 5; }
- inflate_table(DISTS, state.lens, 0, 32, distfix, 0, state.work, { bits: 5 });
-
- virgin = false;
- }
- state.lencode = lenfix;
- state.lenbits = 9;
- state.distcode = distfix;
- state.distbits = 5;
- }
- function updatewindow(strm, src, end, copy) {
- var dist;
- var state = strm.state;
-
- if (state.window === null) {
- state.wsize = 1 << state.wbits;
- state.wnext = 0;
- state.whave = 0;
- state.window = new utils.Buf8(state.wsize);
- }
-
- if (copy >= state.wsize) {
- utils.arraySet(state.window, src, end - state.wsize, state.wsize, 0);
- state.wnext = 0;
- state.whave = state.wsize;
- }
- else {
- dist = state.wsize - state.wnext;
- if (dist > copy) {
- dist = copy;
- }
-
- utils.arraySet(state.window, src, end - copy, dist, state.wnext);
- copy -= dist;
- if (copy) {
-
- utils.arraySet(state.window, src, end - copy, copy, 0);
- state.wnext = copy;
- state.whave = state.wsize;
- }
- else {
- state.wnext += dist;
- if (state.wnext === state.wsize) { state.wnext = 0; }
- if (state.whave < state.wsize) { state.whave += dist; }
- }
- }
- return 0;
- }
- function inflate(strm, flush) {
- var state;
- var input, output;
- var next;
- var put;
- var have, left;
- var hold;
- var bits;
- var _in, _out;
- var copy;
- var from;
- var from_source;
- var here = 0;
- var here_bits, here_op, here_val;
-
- var last_bits, last_op, last_val;
- var len;
- var ret;
- var hbuf = new utils.Buf8(4);
- var opts;
- var n;
- var order =
- [ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 ];
- if (!strm || !strm.state || !strm.output ||
- (!strm.input && strm.avail_in !== 0)) {
- return Z_STREAM_ERROR;
- }
- state = strm.state;
- if (state.mode === TYPE) { state.mode = TYPEDO; }
-
- put = strm.next_out;
- output = strm.output;
- left = strm.avail_out;
- next = strm.next_in;
- input = strm.input;
- have = strm.avail_in;
- hold = state.hold;
- bits = state.bits;
-
- _in = have;
- _out = left;
- ret = Z_OK;
- inf_leave:
- for (;;) {
- switch (state.mode) {
- case HEAD:
- if (state.wrap === 0) {
- state.mode = TYPEDO;
- break;
- }
-
- while (bits < 16) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- if ((state.wrap & 2) && hold === 0x8b1f) {
- state.check = 0;
-
- hbuf[0] = hold & 0xff;
- hbuf[1] = (hold >>> 8) & 0xff;
- state.check = crc32(state.check, hbuf, 2, 0);
-
-
- hold = 0;
- bits = 0;
-
- state.mode = FLAGS;
- break;
- }
- state.flags = 0;
- if (state.head) {
- state.head.done = false;
- }
- if (!(state.wrap & 1) ||
- (((hold & 0xff) << 8) + (hold >> 8)) % 31) {
- strm.msg = 'incorrect header check';
- state.mode = BAD;
- break;
- }
- if ((hold & 0x0f) !== Z_DEFLATED) {
- strm.msg = 'unknown compression method';
- state.mode = BAD;
- break;
- }
-
- hold >>>= 4;
- bits -= 4;
-
- len = (hold & 0x0f) + 8;
- if (state.wbits === 0) {
- state.wbits = len;
- }
- else if (len > state.wbits) {
- strm.msg = 'invalid window size';
- state.mode = BAD;
- break;
- }
- state.dmax = 1 << len;
-
- strm.adler = state.check = 1;
- state.mode = hold & 0x200 ? DICTID : TYPE;
-
- hold = 0;
- bits = 0;
-
- break;
- case FLAGS:
-
- while (bits < 16) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- state.flags = hold;
- if ((state.flags & 0xff) !== Z_DEFLATED) {
- strm.msg = 'unknown compression method';
- state.mode = BAD;
- break;
- }
- if (state.flags & 0xe000) {
- strm.msg = 'unknown header flags set';
- state.mode = BAD;
- break;
- }
- if (state.head) {
- state.head.text = ((hold >> 8) & 1);
- }
- if (state.flags & 0x0200) {
-
- hbuf[0] = hold & 0xff;
- hbuf[1] = (hold >>> 8) & 0xff;
- state.check = crc32(state.check, hbuf, 2, 0);
-
- }
-
- hold = 0;
- bits = 0;
-
- state.mode = TIME;
-
- case TIME:
-
- while (bits < 32) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- if (state.head) {
- state.head.time = hold;
- }
- if (state.flags & 0x0200) {
-
- hbuf[0] = hold & 0xff;
- hbuf[1] = (hold >>> 8) & 0xff;
- hbuf[2] = (hold >>> 16) & 0xff;
- hbuf[3] = (hold >>> 24) & 0xff;
- state.check = crc32(state.check, hbuf, 4, 0);
-
- }
-
- hold = 0;
- bits = 0;
-
- state.mode = OS;
-
- case OS:
-
- while (bits < 16) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- if (state.head) {
- state.head.xflags = (hold & 0xff);
- state.head.os = (hold >> 8);
- }
- if (state.flags & 0x0200) {
-
- hbuf[0] = hold & 0xff;
- hbuf[1] = (hold >>> 8) & 0xff;
- state.check = crc32(state.check, hbuf, 2, 0);
-
- }
-
- hold = 0;
- bits = 0;
-
- state.mode = EXLEN;
-
- case EXLEN:
- if (state.flags & 0x0400) {
-
- while (bits < 16) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- state.length = hold;
- if (state.head) {
- state.head.extra_len = hold;
- }
- if (state.flags & 0x0200) {
-
- hbuf[0] = hold & 0xff;
- hbuf[1] = (hold >>> 8) & 0xff;
- state.check = crc32(state.check, hbuf, 2, 0);
-
- }
-
- hold = 0;
- bits = 0;
-
- }
- else if (state.head) {
- state.head.extra = null;
- }
- state.mode = EXTRA;
-
- case EXTRA:
- if (state.flags & 0x0400) {
- copy = state.length;
- if (copy > have) { copy = have; }
- if (copy) {
- if (state.head) {
- len = state.head.extra_len - state.length;
- if (!state.head.extra) {
-
- state.head.extra = new Array(state.head.extra_len);
- }
- utils.arraySet(
- state.head.extra,
- input,
- next,
-
-
- copy,
-
- len
- );
-
-
-
- }
- if (state.flags & 0x0200) {
- state.check = crc32(state.check, input, copy, next);
- }
- have -= copy;
- next += copy;
- state.length -= copy;
- }
- if (state.length) { break inf_leave; }
- }
- state.length = 0;
- state.mode = NAME;
-
- case NAME:
- if (state.flags & 0x0800) {
- if (have === 0) { break inf_leave; }
- copy = 0;
- do {
-
- len = input[next + copy++];
-
- if (state.head && len &&
- (state.length < 65536 )) {
- state.head.name += String.fromCharCode(len);
- }
- } while (len && copy < have);
- if (state.flags & 0x0200) {
- state.check = crc32(state.check, input, copy, next);
- }
- have -= copy;
- next += copy;
- if (len) { break inf_leave; }
- }
- else if (state.head) {
- state.head.name = null;
- }
- state.length = 0;
- state.mode = COMMENT;
-
- case COMMENT:
- if (state.flags & 0x1000) {
- if (have === 0) { break inf_leave; }
- copy = 0;
- do {
- len = input[next + copy++];
-
- if (state.head && len &&
- (state.length < 65536 )) {
- state.head.comment += String.fromCharCode(len);
- }
- } while (len && copy < have);
- if (state.flags & 0x0200) {
- state.check = crc32(state.check, input, copy, next);
- }
- have -= copy;
- next += copy;
- if (len) { break inf_leave; }
- }
- else if (state.head) {
- state.head.comment = null;
- }
- state.mode = HCRC;
-
- case HCRC:
- if (state.flags & 0x0200) {
-
- while (bits < 16) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- if (hold !== (state.check & 0xffff)) {
- strm.msg = 'header crc mismatch';
- state.mode = BAD;
- break;
- }
-
- hold = 0;
- bits = 0;
-
- }
- if (state.head) {
- state.head.hcrc = ((state.flags >> 9) & 1);
- state.head.done = true;
- }
- strm.adler = state.check = 0;
- state.mode = TYPE;
- break;
- case DICTID:
-
- while (bits < 32) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- strm.adler = state.check = zswap32(hold);
-
- hold = 0;
- bits = 0;
-
- state.mode = DICT;
-
- case DICT:
- if (state.havedict === 0) {
-
- strm.next_out = put;
- strm.avail_out = left;
- strm.next_in = next;
- strm.avail_in = have;
- state.hold = hold;
- state.bits = bits;
-
- return Z_NEED_DICT;
- }
- strm.adler = state.check = 1;
- state.mode = TYPE;
-
- case TYPE:
- if (flush === Z_BLOCK || flush === Z_TREES) { break inf_leave; }
-
- case TYPEDO:
- if (state.last) {
-
- hold >>>= bits & 7;
- bits -= bits & 7;
-
- state.mode = CHECK;
- break;
- }
-
- while (bits < 3) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- state.last = (hold & 0x01);
-
- hold >>>= 1;
- bits -= 1;
-
- switch ((hold & 0x03)) {
- case 0:
-
-
- state.mode = STORED;
- break;
- case 1:
- fixedtables(state);
-
-
- state.mode = LEN_;
- if (flush === Z_TREES) {
-
- hold >>>= 2;
- bits -= 2;
-
- break inf_leave;
- }
- break;
- case 2:
-
-
- state.mode = TABLE;
- break;
- case 3:
- strm.msg = 'invalid block type';
- state.mode = BAD;
- }
-
- hold >>>= 2;
- bits -= 2;
-
- break;
- case STORED:
-
- hold >>>= bits & 7;
- bits -= bits & 7;
-
-
- while (bits < 32) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- if ((hold & 0xffff) !== ((hold >>> 16) ^ 0xffff)) {
- strm.msg = 'invalid stored block lengths';
- state.mode = BAD;
- break;
- }
- state.length = hold & 0xffff;
-
-
-
- hold = 0;
- bits = 0;
-
- state.mode = COPY_;
- if (flush === Z_TREES) { break inf_leave; }
-
- case COPY_:
- state.mode = COPY;
-
- case COPY:
- copy = state.length;
- if (copy) {
- if (copy > have) { copy = have; }
- if (copy > left) { copy = left; }
- if (copy === 0) { break inf_leave; }
-
- utils.arraySet(output, input, next, copy, put);
-
- have -= copy;
- next += copy;
- left -= copy;
- put += copy;
- state.length -= copy;
- break;
- }
-
- state.mode = TYPE;
- break;
- case TABLE:
-
- while (bits < 14) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- state.nlen = (hold & 0x1f) + 257;
-
- hold >>>= 5;
- bits -= 5;
-
- state.ndist = (hold & 0x1f) + 1;
-
- hold >>>= 5;
- bits -= 5;
-
- state.ncode = (hold & 0x0f) + 4;
-
- hold >>>= 4;
- bits -= 4;
-
- if (state.nlen > 286 || state.ndist > 30) {
- strm.msg = 'too many length or distance symbols';
- state.mode = BAD;
- break;
- }
-
- state.have = 0;
- state.mode = LENLENS;
-
- case LENLENS:
- while (state.have < state.ncode) {
-
- while (bits < 3) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- state.lens[order[state.have++]] = (hold & 0x07);
-
- hold >>>= 3;
- bits -= 3;
-
- }
- while (state.have < 19) {
- state.lens[order[state.have++]] = 0;
- }
-
-
-
-
- state.lencode = state.lendyn;
- state.lenbits = 7;
- opts = { bits: state.lenbits };
- ret = inflate_table(CODES, state.lens, 0, 19, state.lencode, 0, state.work, opts);
- state.lenbits = opts.bits;
- if (ret) {
- strm.msg = 'invalid code lengths set';
- state.mode = BAD;
- break;
- }
-
- state.have = 0;
- state.mode = CODELENS;
-
- case CODELENS:
- while (state.have < state.nlen + state.ndist) {
- for (;;) {
- here = state.lencode[hold & ((1 << state.lenbits) - 1)];
- here_bits = here >>> 24;
- here_op = (here >>> 16) & 0xff;
- here_val = here & 0xffff;
- if ((here_bits) <= bits) { break; }
-
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
-
- }
- if (here_val < 16) {
-
- hold >>>= here_bits;
- bits -= here_bits;
-
- state.lens[state.have++] = here_val;
- }
- else {
- if (here_val === 16) {
-
- n = here_bits + 2;
- while (bits < n) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
-
- hold >>>= here_bits;
- bits -= here_bits;
-
- if (state.have === 0) {
- strm.msg = 'invalid bit length repeat';
- state.mode = BAD;
- break;
- }
- len = state.lens[state.have - 1];
- copy = 3 + (hold & 0x03);
-
- hold >>>= 2;
- bits -= 2;
-
- }
- else if (here_val === 17) {
-
- n = here_bits + 3;
- while (bits < n) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
-
- hold >>>= here_bits;
- bits -= here_bits;
-
- len = 0;
- copy = 3 + (hold & 0x07);
-
- hold >>>= 3;
- bits -= 3;
-
- }
- else {
-
- n = here_bits + 7;
- while (bits < n) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
-
- hold >>>= here_bits;
- bits -= here_bits;
-
- len = 0;
- copy = 11 + (hold & 0x7f);
-
- hold >>>= 7;
- bits -= 7;
-
- }
- if (state.have + copy > state.nlen + state.ndist) {
- strm.msg = 'invalid bit length repeat';
- state.mode = BAD;
- break;
- }
- while (copy--) {
- state.lens[state.have++] = len;
- }
- }
- }
-
- if (state.mode === BAD) { break; }
-
- if (state.lens[256] === 0) {
- strm.msg = 'invalid code -- missing end-of-block';
- state.mode = BAD;
- break;
- }
-
- state.lenbits = 9;
- opts = { bits: state.lenbits };
- ret = inflate_table(LENS, state.lens, 0, state.nlen, state.lencode, 0, state.work, opts);
-
-
- state.lenbits = opts.bits;
-
- if (ret) {
- strm.msg = 'invalid literal/lengths set';
- state.mode = BAD;
- break;
- }
- state.distbits = 6;
-
-
- state.distcode = state.distdyn;
- opts = { bits: state.distbits };
- ret = inflate_table(DISTS, state.lens, state.nlen, state.ndist, state.distcode, 0, state.work, opts);
-
-
- state.distbits = opts.bits;
-
- if (ret) {
- strm.msg = 'invalid distances set';
- state.mode = BAD;
- break;
- }
-
- state.mode = LEN_;
- if (flush === Z_TREES) { break inf_leave; }
-
- case LEN_:
- state.mode = LEN;
-
- case LEN:
- if (have >= 6 && left >= 258) {
-
- strm.next_out = put;
- strm.avail_out = left;
- strm.next_in = next;
- strm.avail_in = have;
- state.hold = hold;
- state.bits = bits;
-
- inflate_fast(strm, _out);
-
- put = strm.next_out;
- output = strm.output;
- left = strm.avail_out;
- next = strm.next_in;
- input = strm.input;
- have = strm.avail_in;
- hold = state.hold;
- bits = state.bits;
-
- if (state.mode === TYPE) {
- state.back = -1;
- }
- break;
- }
- state.back = 0;
- for (;;) {
- here = state.lencode[hold & ((1 << state.lenbits) - 1)];
- here_bits = here >>> 24;
- here_op = (here >>> 16) & 0xff;
- here_val = here & 0xffff;
- if (here_bits <= bits) { break; }
-
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
-
- }
- if (here_op && (here_op & 0xf0) === 0) {
- last_bits = here_bits;
- last_op = here_op;
- last_val = here_val;
- for (;;) {
- here = state.lencode[last_val +
- ((hold & ((1 << (last_bits + last_op)) - 1)) >> last_bits)];
- here_bits = here >>> 24;
- here_op = (here >>> 16) & 0xff;
- here_val = here & 0xffff;
- if ((last_bits + here_bits) <= bits) { break; }
-
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
-
- }
-
- hold >>>= last_bits;
- bits -= last_bits;
-
- state.back += last_bits;
- }
-
- hold >>>= here_bits;
- bits -= here_bits;
-
- state.back += here_bits;
- state.length = here_val;
- if (here_op === 0) {
-
-
-
- state.mode = LIT;
- break;
- }
- if (here_op & 32) {
-
- state.back = -1;
- state.mode = TYPE;
- break;
- }
- if (here_op & 64) {
- strm.msg = 'invalid literal/length code';
- state.mode = BAD;
- break;
- }
- state.extra = here_op & 15;
- state.mode = LENEXT;
-
- case LENEXT:
- if (state.extra) {
-
- n = state.extra;
- while (bits < n) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- state.length += hold & ((1 << state.extra) - 1);
-
- hold >>>= state.extra;
- bits -= state.extra;
-
- state.back += state.extra;
- }
-
- state.was = state.length;
- state.mode = DIST;
-
- case DIST:
- for (;;) {
- here = state.distcode[hold & ((1 << state.distbits) - 1)];
- here_bits = here >>> 24;
- here_op = (here >>> 16) & 0xff;
- here_val = here & 0xffff;
- if ((here_bits) <= bits) { break; }
-
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
-
- }
- if ((here_op & 0xf0) === 0) {
- last_bits = here_bits;
- last_op = here_op;
- last_val = here_val;
- for (;;) {
- here = state.distcode[last_val +
- ((hold & ((1 << (last_bits + last_op)) - 1)) >> last_bits)];
- here_bits = here >>> 24;
- here_op = (here >>> 16) & 0xff;
- here_val = here & 0xffff;
- if ((last_bits + here_bits) <= bits) { break; }
-
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
-
- }
-
- hold >>>= last_bits;
- bits -= last_bits;
-
- state.back += last_bits;
- }
-
- hold >>>= here_bits;
- bits -= here_bits;
-
- state.back += here_bits;
- if (here_op & 64) {
- strm.msg = 'invalid distance code';
- state.mode = BAD;
- break;
- }
- state.offset = here_val;
- state.extra = (here_op) & 15;
- state.mode = DISTEXT;
-
- case DISTEXT:
- if (state.extra) {
-
- n = state.extra;
- while (bits < n) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- state.offset += hold & ((1 << state.extra) - 1);
-
- hold >>>= state.extra;
- bits -= state.extra;
-
- state.back += state.extra;
- }
- if (state.offset > state.dmax) {
- strm.msg = 'invalid distance too far back';
- state.mode = BAD;
- break;
- }
-
- state.mode = MATCH;
-
- case MATCH:
- if (left === 0) { break inf_leave; }
- copy = _out - left;
- if (state.offset > copy) {
- copy = state.offset - copy;
- if (copy > state.whave) {
- if (state.sane) {
- strm.msg = 'invalid distance too far back';
- state.mode = BAD;
- break;
- }
- }
- if (copy > state.wnext) {
- copy -= state.wnext;
- from = state.wsize - copy;
- }
- else {
- from = state.wnext - copy;
- }
- if (copy > state.length) { copy = state.length; }
- from_source = state.window;
- }
- else {
- from_source = output;
- from = put - state.offset;
- copy = state.length;
- }
- if (copy > left) { copy = left; }
- left -= copy;
- state.length -= copy;
- do {
- output[put++] = from_source[from++];
- } while (--copy);
- if (state.length === 0) { state.mode = LEN; }
- break;
- case LIT:
- if (left === 0) { break inf_leave; }
- output[put++] = state.length;
- left--;
- state.mode = LEN;
- break;
- case CHECK:
- if (state.wrap) {
-
- while (bits < 32) {
- if (have === 0) { break inf_leave; }
- have--;
-
- hold |= input[next++] << bits;
- bits += 8;
- }
-
- _out -= left;
- strm.total_out += _out;
- state.total += _out;
- if (_out) {
- strm.adler = state.check =
-
- (state.flags ? crc32(state.check, output, _out, put - _out) : adler32(state.check, output, _out, put - _out));
- }
- _out = left;
-
- if ((state.flags ? hold : zswap32(hold)) !== state.check) {
- strm.msg = 'incorrect data check';
- state.mode = BAD;
- break;
- }
-
- hold = 0;
- bits = 0;
-
-
- }
- state.mode = LENGTH;
-
- case LENGTH:
- if (state.wrap && state.flags) {
-
- while (bits < 32) {
- if (have === 0) { break inf_leave; }
- have--;
- hold += input[next++] << bits;
- bits += 8;
- }
-
- if (hold !== (state.total & 0xffffffff)) {
- strm.msg = 'incorrect length check';
- state.mode = BAD;
- break;
- }
-
- hold = 0;
- bits = 0;
-
-
- }
- state.mode = DONE;
-
- case DONE:
- ret = Z_STREAM_END;
- break inf_leave;
- case BAD:
- ret = Z_DATA_ERROR;
- break inf_leave;
- case MEM:
- return Z_MEM_ERROR;
- case SYNC:
-
- default:
- return Z_STREAM_ERROR;
- }
- }
-
-
-
- strm.next_out = put;
- strm.avail_out = left;
- strm.next_in = next;
- strm.avail_in = have;
- state.hold = hold;
- state.bits = bits;
-
- if (state.wsize || (_out !== strm.avail_out && state.mode < BAD &&
- (state.mode < CHECK || flush !== Z_FINISH))) {
- if (updatewindow(strm, strm.output, strm.next_out, _out - strm.avail_out)) {
- state.mode = MEM;
- return Z_MEM_ERROR;
- }
- }
- _in -= strm.avail_in;
- _out -= strm.avail_out;
- strm.total_in += _in;
- strm.total_out += _out;
- state.total += _out;
- if (state.wrap && _out) {
- strm.adler = state.check =
- (state.flags ? crc32(state.check, output, _out, strm.next_out - _out) : adler32(state.check, output, _out, strm.next_out - _out));
- }
- strm.data_type = state.bits + (state.last ? 64 : 0) +
- (state.mode === TYPE ? 128 : 0) +
- (state.mode === LEN_ || state.mode === COPY_ ? 256 : 0);
- if (((_in === 0 && _out === 0) || flush === Z_FINISH) && ret === Z_OK) {
- ret = Z_BUF_ERROR;
- }
- return ret;
- }
- function inflateEnd(strm) {
- if (!strm || !strm.state ) {
- return Z_STREAM_ERROR;
- }
- var state = strm.state;
- if (state.window) {
- state.window = null;
- }
- strm.state = null;
- return Z_OK;
- }
- function inflateGetHeader(strm, head) {
- var state;
-
- if (!strm || !strm.state) { return Z_STREAM_ERROR; }
- state = strm.state;
- if ((state.wrap & 2) === 0) { return Z_STREAM_ERROR; }
-
- state.head = head;
- head.done = false;
- return Z_OK;
- }
- function inflateSetDictionary(strm, dictionary) {
- var dictLength = dictionary.length;
- var state;
- var dictid;
- var ret;
-
- if (!strm || !strm.state ) { return Z_STREAM_ERROR; }
- state = strm.state;
- if (state.wrap !== 0 && state.mode !== DICT) {
- return Z_STREAM_ERROR;
- }
-
- if (state.mode === DICT) {
- dictid = 1;
-
- dictid = adler32(dictid, dictionary, dictLength, 0);
- if (dictid !== state.check) {
- return Z_DATA_ERROR;
- }
- }
-
- ret = updatewindow(strm, dictionary, dictLength, dictLength);
- if (ret) {
- state.mode = MEM;
- return Z_MEM_ERROR;
- }
- state.havedict = 1;
-
- return Z_OK;
- }
- exports.inflateReset = inflateReset;
- exports.inflateReset2 = inflateReset2;
- exports.inflateResetKeep = inflateResetKeep;
- exports.inflateInit = inflateInit;
- exports.inflateInit2 = inflateInit2;
- exports.inflate = inflate;
- exports.inflateEnd = inflateEnd;
- exports.inflateGetHeader = inflateGetHeader;
- exports.inflateSetDictionary = inflateSetDictionary;
- exports.inflateInfo = 'pako inflate (from Nodeca project)';
- },{"../utils/common":39,"./adler32":40,"./crc32":42,"./inffast":44,"./inftrees":46}],46:[function(require,module,exports){
- 'use strict';
- var utils = require('../utils/common');
- var MAXBITS = 15;
- var ENOUGH_LENS = 852;
- var ENOUGH_DISTS = 592;
- var CODES = 0;
- var LENS = 1;
- var DISTS = 2;
- var lbase = [
- 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
- 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0
- ];
- var lext = [
- 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
- 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 72, 78
- ];
- var dbase = [
- 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
- 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
- 8193, 12289, 16385, 24577, 0, 0
- ];
- var dext = [
- 16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22,
- 23, 23, 24, 24, 25, 25, 26, 26, 27, 27,
- 28, 28, 29, 29, 64, 64
- ];
- module.exports = function inflate_table(type, lens, lens_index, codes, table, table_index, work, opts)
- {
- var bits = opts.bits;
-
- var len = 0;
- var sym = 0;
- var min = 0, max = 0;
- var root = 0;
- var curr = 0;
- var drop = 0;
- var left = 0;
- var used = 0;
- var huff = 0;
- var incr;
- var fill;
- var low;
- var mask;
- var next;
- var base = null;
- var base_index = 0;
- var end;
- var count = new utils.Buf16(MAXBITS + 1);
- var offs = new utils.Buf16(MAXBITS + 1);
- var extra = null;
- var extra_index = 0;
- var here_bits, here_op, here_val;
-
-
- for (len = 0; len <= MAXBITS; len++) {
- count[len] = 0;
- }
- for (sym = 0; sym < codes; sym++) {
- count[lens[lens_index + sym]]++;
- }
-
- root = bits;
- for (max = MAXBITS; max >= 1; max--) {
- if (count[max] !== 0) { break; }
- }
- if (root > max) {
- root = max;
- }
- if (max === 0) {
-
-
-
- table[table_index++] = (1 << 24) | (64 << 16) | 0;
-
-
-
- table[table_index++] = (1 << 24) | (64 << 16) | 0;
- opts.bits = 1;
- return 0;
- }
- for (min = 1; min < max; min++) {
- if (count[min] !== 0) { break; }
- }
- if (root < min) {
- root = min;
- }
-
- left = 1;
- for (len = 1; len <= MAXBITS; len++) {
- left <<= 1;
- left -= count[len];
- if (left < 0) {
- return -1;
- }
- }
- if (left > 0 && (type === CODES || max !== 1)) {
- return -1;
- }
-
- offs[1] = 0;
- for (len = 1; len < MAXBITS; len++) {
- offs[len + 1] = offs[len] + count[len];
- }
-
- for (sym = 0; sym < codes; sym++) {
- if (lens[lens_index + sym] !== 0) {
- work[offs[lens[lens_index + sym]]++] = sym;
- }
- }
-
-
-
-
- if (type === CODES) {
- base = extra = work;
- end = 19;
- } else if (type === LENS) {
- base = lbase;
- base_index -= 257;
- extra = lext;
- extra_index -= 257;
- end = 256;
- } else {
- base = dbase;
- extra = dext;
- end = -1;
- }
-
- huff = 0;
- sym = 0;
- len = min;
- next = table_index;
- curr = root;
- drop = 0;
- low = -1;
- used = 1 << root;
- mask = used - 1;
-
- if ((type === LENS && used > ENOUGH_LENS) ||
- (type === DISTS && used > ENOUGH_DISTS)) {
- return 1;
- }
-
- for (;;) {
-
- here_bits = len - drop;
- if (work[sym] < end) {
- here_op = 0;
- here_val = work[sym];
- }
- else if (work[sym] > end) {
- here_op = extra[extra_index + work[sym]];
- here_val = base[base_index + work[sym]];
- }
- else {
- here_op = 32 + 64;
- here_val = 0;
- }
-
- incr = 1 << (len - drop);
- fill = 1 << curr;
- min = fill;
- do {
- fill -= incr;
- table[next + (huff >> drop) + fill] = (here_bits << 24) | (here_op << 16) | here_val |0;
- } while (fill !== 0);
-
- incr = 1 << (len - 1);
- while (huff & incr) {
- incr >>= 1;
- }
- if (incr !== 0) {
- huff &= incr - 1;
- huff += incr;
- } else {
- huff = 0;
- }
-
- sym++;
- if (--count[len] === 0) {
- if (len === max) { break; }
- len = lens[lens_index + work[sym]];
- }
-
- if (len > root && (huff & mask) !== low) {
-
- if (drop === 0) {
- drop = root;
- }
-
- next += min;
-
- curr = len - drop;
- left = 1 << curr;
- while (curr + drop < max) {
- left -= count[curr + drop];
- if (left <= 0) { break; }
- curr++;
- left <<= 1;
- }
-
- used += 1 << curr;
- if ((type === LENS && used > ENOUGH_LENS) ||
- (type === DISTS && used > ENOUGH_DISTS)) {
- return 1;
- }
-
- low = huff & mask;
-
- table[low] = (root << 24) | (curr << 16) | (next - table_index) |0;
- }
- }
-
- if (huff !== 0) {
-
-
-
- table[next + huff] = ((len - drop) << 24) | (64 << 16) |0;
- }
-
-
- opts.bits = root;
- return 0;
- };
- },{"../utils/common":39}],47:[function(require,module,exports){
- 'use strict';
- module.exports = {
- 2: 'need dictionary',
- 1: 'stream end',
- 0: '',
- '-1': 'file error',
- '-2': 'stream error',
- '-3': 'data error',
- '-4': 'insufficient memory',
- '-5': 'buffer error',
- '-6': 'incompatible version'
- };
- },{}],48:[function(require,module,exports){
- 'use strict';
- var utils = require('../utils/common');
- var Z_FIXED = 4;
- var Z_BINARY = 0;
- var Z_TEXT = 1;
- var Z_UNKNOWN = 2;
- function zero(buf) { var len = buf.length; while (--len >= 0) { buf[len] = 0; } }
- var STORED_BLOCK = 0;
- var STATIC_TREES = 1;
- var DYN_TREES = 2;
- var MIN_MATCH = 3;
- var MAX_MATCH = 258;
- var LENGTH_CODES = 29;
- var LITERALS = 256;
- var L_CODES = LITERALS + 1 + LENGTH_CODES;
- var D_CODES = 30;
- var BL_CODES = 19;
- var HEAP_SIZE = 2 * L_CODES + 1;
- var MAX_BITS = 15;
- var Buf_size = 16;
- var MAX_BL_BITS = 7;
- var END_BLOCK = 256;
- var REP_3_6 = 16;
- var REPZ_3_10 = 17;
- var REPZ_11_138 = 18;
- var extra_lbits =
- [0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0];
- var extra_dbits =
- [0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13];
- var extra_blbits =
- [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7];
- var bl_order =
- [16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15];
- var DIST_CODE_LEN = 512;
- var static_ltree = new Array((L_CODES + 2) * 2);
- zero(static_ltree);
- var static_dtree = new Array(D_CODES * 2);
- zero(static_dtree);
- var _dist_code = new Array(DIST_CODE_LEN);
- zero(_dist_code);
- var _length_code = new Array(MAX_MATCH - MIN_MATCH + 1);
- zero(_length_code);
- var base_length = new Array(LENGTH_CODES);
- zero(base_length);
- var base_dist = new Array(D_CODES);
- zero(base_dist);
- function StaticTreeDesc(static_tree, extra_bits, extra_base, elems, max_length) {
- this.static_tree = static_tree;
- this.extra_bits = extra_bits;
- this.extra_base = extra_base;
- this.elems = elems;
- this.max_length = max_length;
-
- this.has_stree = static_tree && static_tree.length;
- }
- var static_l_desc;
- var static_d_desc;
- var static_bl_desc;
- function TreeDesc(dyn_tree, stat_desc) {
- this.dyn_tree = dyn_tree;
- this.max_code = 0;
- this.stat_desc = stat_desc;
- }
- function d_code(dist) {
- return dist < 256 ? _dist_code[dist] : _dist_code[256 + (dist >>> 7)];
- }
- function put_short(s, w) {
- s.pending_buf[s.pending++] = (w) & 0xff;
- s.pending_buf[s.pending++] = (w >>> 8) & 0xff;
- }
- function send_bits(s, value, length) {
- if (s.bi_valid > (Buf_size - length)) {
- s.bi_buf |= (value << s.bi_valid) & 0xffff;
- put_short(s, s.bi_buf);
- s.bi_buf = value >> (Buf_size - s.bi_valid);
- s.bi_valid += length - Buf_size;
- } else {
- s.bi_buf |= (value << s.bi_valid) & 0xffff;
- s.bi_valid += length;
- }
- }
- function send_code(s, c, tree) {
- send_bits(s, tree[c * 2], tree[c * 2 + 1]);
- }
- function bi_reverse(code, len) {
- var res = 0;
- do {
- res |= code & 1;
- code >>>= 1;
- res <<= 1;
- } while (--len > 0);
- return res >>> 1;
- }
- function bi_flush(s) {
- if (s.bi_valid === 16) {
- put_short(s, s.bi_buf);
- s.bi_buf = 0;
- s.bi_valid = 0;
- } else if (s.bi_valid >= 8) {
- s.pending_buf[s.pending++] = s.bi_buf & 0xff;
- s.bi_buf >>= 8;
- s.bi_valid -= 8;
- }
- }
- function gen_bitlen(s, desc)
- // deflate_state *s;
- // tree_desc *desc; /* the tree descriptor */
- {
- var tree = desc.dyn_tree;
- var max_code = desc.max_code;
- var stree = desc.stat_desc.static_tree;
- var has_stree = desc.stat_desc.has_stree;
- var extra = desc.stat_desc.extra_bits;
- var base = desc.stat_desc.extra_base;
- var max_length = desc.stat_desc.max_length;
- var h;
- var n, m;
- var bits;
- var xbits;
- var f;
- var overflow = 0;
- for (bits = 0; bits <= MAX_BITS; bits++) {
- s.bl_count[bits] = 0;
- }
-
- tree[s.heap[s.heap_max] * 2 + 1] = 0;
- for (h = s.heap_max + 1; h < HEAP_SIZE; h++) {
- n = s.heap[h];
- bits = tree[tree[n * 2 + 1] * 2 + 1] + 1;
- if (bits > max_length) {
- bits = max_length;
- overflow++;
- }
- tree[n * 2 + 1] = bits;
-
- if (n > max_code) { continue; }
- s.bl_count[bits]++;
- xbits = 0;
- if (n >= base) {
- xbits = extra[n - base];
- }
- f = tree[n * 2];
- s.opt_len += f * (bits + xbits);
- if (has_stree) {
- s.static_len += f * (stree[n * 2 + 1] + xbits);
- }
- }
- if (overflow === 0) { return; }
-
-
-
- do {
- bits = max_length - 1;
- while (s.bl_count[bits] === 0) { bits--; }
- s.bl_count[bits]--;
- s.bl_count[bits + 1] += 2;
- s.bl_count[max_length]--;
-
- overflow -= 2;
- } while (overflow > 0);
-
- for (bits = max_length; bits !== 0; bits--) {
- n = s.bl_count[bits];
- while (n !== 0) {
- m = s.heap[--h];
- if (m > max_code) { continue; }
- if (tree[m * 2 + 1] !== bits) {
-
- s.opt_len += (bits - tree[m * 2 + 1]) * tree[m * 2];
- tree[m * 2 + 1] = bits;
- }
- n--;
- }
- }
- }
- function gen_codes(tree, max_code, bl_count)
- // ct_data *tree; /* the tree to decorate */
- // int max_code; /* largest code with non zero frequency */
- // ushf *bl_count; /* number of codes at each bit length */
- {
- var next_code = new Array(MAX_BITS + 1);
- var code = 0;
- var bits;
- var n;
-
- for (bits = 1; bits <= MAX_BITS; bits++) {
- next_code[bits] = code = (code + bl_count[bits - 1]) << 1;
- }
-
-
-
-
- for (n = 0; n <= max_code; n++) {
- var len = tree[n * 2 + 1];
- if (len === 0) { continue; }
-
- tree[n * 2] = bi_reverse(next_code[len]++, len);
-
-
- }
- }
- function tr_static_init() {
- var n;
- var bits;
- var length;
- var code;
- var dist;
- var bl_count = new Array(MAX_BITS + 1);
-
-
-
-
-
- length = 0;
- for (code = 0; code < LENGTH_CODES - 1; code++) {
- base_length[code] = length;
- for (n = 0; n < (1 << extra_lbits[code]); n++) {
- _length_code[length++] = code;
- }
- }
-
-
- _length_code[length - 1] = code;
-
- dist = 0;
- for (code = 0; code < 16; code++) {
- base_dist[code] = dist;
- for (n = 0; n < (1 << extra_dbits[code]); n++) {
- _dist_code[dist++] = code;
- }
- }
-
- dist >>= 7;
- for (; code < D_CODES; code++) {
- base_dist[code] = dist << 7;
- for (n = 0; n < (1 << (extra_dbits[code] - 7)); n++) {
- _dist_code[256 + dist++] = code;
- }
- }
-
-
- for (bits = 0; bits <= MAX_BITS; bits++) {
- bl_count[bits] = 0;
- }
- n = 0;
- while (n <= 143) {
- static_ltree[n * 2 + 1] = 8;
- n++;
- bl_count[8]++;
- }
- while (n <= 255) {
- static_ltree[n * 2 + 1] = 9;
- n++;
- bl_count[9]++;
- }
- while (n <= 279) {
- static_ltree[n * 2 + 1] = 7;
- n++;
- bl_count[7]++;
- }
- while (n <= 287) {
- static_ltree[n * 2 + 1] = 8;
- n++;
- bl_count[8]++;
- }
-
- gen_codes(static_ltree, L_CODES + 1, bl_count);
-
- for (n = 0; n < D_CODES; n++) {
- static_dtree[n * 2 + 1] = 5;
- static_dtree[n * 2] = bi_reverse(n, 5);
- }
-
- static_l_desc = new StaticTreeDesc(static_ltree, extra_lbits, LITERALS + 1, L_CODES, MAX_BITS);
- static_d_desc = new StaticTreeDesc(static_dtree, extra_dbits, 0, D_CODES, MAX_BITS);
- static_bl_desc = new StaticTreeDesc(new Array(0), extra_blbits, 0, BL_CODES, MAX_BL_BITS);
-
- }
- function init_block(s) {
- var n;
-
- for (n = 0; n < L_CODES; n++) { s.dyn_ltree[n * 2] = 0; }
- for (n = 0; n < D_CODES; n++) { s.dyn_dtree[n * 2] = 0; }
- for (n = 0; n < BL_CODES; n++) { s.bl_tree[n * 2] = 0; }
- s.dyn_ltree[END_BLOCK * 2] = 1;
- s.opt_len = s.static_len = 0;
- s.last_lit = s.matches = 0;
- }
- function bi_windup(s)
- {
- if (s.bi_valid > 8) {
- put_short(s, s.bi_buf);
- } else if (s.bi_valid > 0) {
-
- s.pending_buf[s.pending++] = s.bi_buf;
- }
- s.bi_buf = 0;
- s.bi_valid = 0;
- }
- function copy_block(s, buf, len, header)
- //DeflateState *s;
- //charf *buf; /* the input data */
- //unsigned len; /* its length */
- //int header; /* true if block header must be written */
- {
- bi_windup(s);
- if (header) {
- put_short(s, len);
- put_short(s, ~len);
- }
- utils.arraySet(s.pending_buf, s.window, buf, len, s.pending);
- s.pending += len;
- }
- function smaller(tree, n, m, depth) {
- var _n2 = n * 2;
- var _m2 = m * 2;
- return (tree[_n2] < tree[_m2] ||
- (tree[_n2] === tree[_m2] && depth[n] <= depth[m]));
- }
- function pqdownheap(s, tree, k)
- // deflate_state *s;
- // ct_data *tree; /* the tree to restore */
- // int k; /* node to move down */
- {
- var v = s.heap[k];
- var j = k << 1;
- while (j <= s.heap_len) {
-
- if (j < s.heap_len &&
- smaller(tree, s.heap[j + 1], s.heap[j], s.depth)) {
- j++;
- }
-
- if (smaller(tree, v, s.heap[j], s.depth)) { break; }
-
- s.heap[k] = s.heap[j];
- k = j;
-
- j <<= 1;
- }
- s.heap[k] = v;
- }
- function compress_block(s, ltree, dtree)
- // deflate_state *s;
- // const ct_data *ltree; /* literal tree */
- // const ct_data *dtree; /* distance tree */
- {
- var dist;
- var lc;
- var lx = 0;
- var code;
- var extra;
- if (s.last_lit !== 0) {
- do {
- dist = (s.pending_buf[s.d_buf + lx * 2] << 8) | (s.pending_buf[s.d_buf + lx * 2 + 1]);
- lc = s.pending_buf[s.l_buf + lx];
- lx++;
- if (dist === 0) {
- send_code(s, lc, ltree);
-
- } else {
-
- code = _length_code[lc];
- send_code(s, code + LITERALS + 1, ltree);
- extra = extra_lbits[code];
- if (extra !== 0) {
- lc -= base_length[code];
- send_bits(s, lc, extra);
- }
- dist--;
- code = d_code(dist);
-
- send_code(s, code, dtree);
- extra = extra_dbits[code];
- if (extra !== 0) {
- dist -= base_dist[code];
- send_bits(s, dist, extra);
- }
- }
-
-
-
- } while (lx < s.last_lit);
- }
- send_code(s, END_BLOCK, ltree);
- }
- function build_tree(s, desc)
- // deflate_state *s;
- // tree_desc *desc; /* the tree descriptor */
- {
- var tree = desc.dyn_tree;
- var stree = desc.stat_desc.static_tree;
- var has_stree = desc.stat_desc.has_stree;
- var elems = desc.stat_desc.elems;
- var n, m;
- var max_code = -1;
- var node;
-
- s.heap_len = 0;
- s.heap_max = HEAP_SIZE;
- for (n = 0; n < elems; n++) {
- if (tree[n * 2] !== 0) {
- s.heap[++s.heap_len] = max_code = n;
- s.depth[n] = 0;
- } else {
- tree[n * 2 + 1] = 0;
- }
- }
-
- while (s.heap_len < 2) {
- node = s.heap[++s.heap_len] = (max_code < 2 ? ++max_code : 0);
- tree[node * 2] = 1;
- s.depth[node] = 0;
- s.opt_len--;
- if (has_stree) {
- s.static_len -= stree[node * 2 + 1];
- }
-
- }
- desc.max_code = max_code;
-
- for (n = (s.heap_len >> 1); n >= 1; n--) { pqdownheap(s, tree, n); }
-
- node = elems;
- do {
-
-
- n = s.heap[1];
- s.heap[1] = s.heap[s.heap_len--];
- pqdownheap(s, tree, 1);
-
- m = s.heap[1];
- s.heap[--s.heap_max] = n;
- s.heap[--s.heap_max] = m;
-
- tree[node * 2] = tree[n * 2] + tree[m * 2];
- s.depth[node] = (s.depth[n] >= s.depth[m] ? s.depth[n] : s.depth[m]) + 1;
- tree[n * 2 + 1] = tree[m * 2 + 1] = node;
-
- s.heap[1] = node++;
- pqdownheap(s, tree, 1);
- } while (s.heap_len >= 2);
- s.heap[--s.heap_max] = s.heap[1];
-
- gen_bitlen(s, desc);
-
- gen_codes(tree, max_code, s.bl_count);
- }
- function scan_tree(s, tree, max_code)
- // deflate_state *s;
- // ct_data *tree; /* the tree to be scanned */
- // int max_code; /* and its largest code of non zero frequency */
- {
- var n;
- var prevlen = -1;
- var curlen;
- var nextlen = tree[0 * 2 + 1];
- var count = 0;
- var max_count = 7;
- var min_count = 4;
- if (nextlen === 0) {
- max_count = 138;
- min_count = 3;
- }
- tree[(max_code + 1) * 2 + 1] = 0xffff;
- for (n = 0; n <= max_code; n++) {
- curlen = nextlen;
- nextlen = tree[(n + 1) * 2 + 1];
- if (++count < max_count && curlen === nextlen) {
- continue;
- } else if (count < min_count) {
- s.bl_tree[curlen * 2] += count;
- } else if (curlen !== 0) {
- if (curlen !== prevlen) { s.bl_tree[curlen * 2]++; }
- s.bl_tree[REP_3_6 * 2]++;
- } else if (count <= 10) {
- s.bl_tree[REPZ_3_10 * 2]++;
- } else {
- s.bl_tree[REPZ_11_138 * 2]++;
- }
- count = 0;
- prevlen = curlen;
- if (nextlen === 0) {
- max_count = 138;
- min_count = 3;
- } else if (curlen === nextlen) {
- max_count = 6;
- min_count = 3;
- } else {
- max_count = 7;
- min_count = 4;
- }
- }
- }
- function send_tree(s, tree, max_code)
- // deflate_state *s;
- // ct_data *tree; /* the tree to be scanned */
- // int max_code; /* and its largest code of non zero frequency */
- {
- var n;
- var prevlen = -1;
- var curlen;
- var nextlen = tree[0 * 2 + 1];
- var count = 0;
- var max_count = 7;
- var min_count = 4;
-
- if (nextlen === 0) {
- max_count = 138;
- min_count = 3;
- }
- for (n = 0; n <= max_code; n++) {
- curlen = nextlen;
- nextlen = tree[(n + 1) * 2 + 1];
- if (++count < max_count && curlen === nextlen) {
- continue;
- } else if (count < min_count) {
- do { send_code(s, curlen, s.bl_tree); } while (--count !== 0);
- } else if (curlen !== 0) {
- if (curlen !== prevlen) {
- send_code(s, curlen, s.bl_tree);
- count--;
- }
-
- send_code(s, REP_3_6, s.bl_tree);
- send_bits(s, count - 3, 2);
- } else if (count <= 10) {
- send_code(s, REPZ_3_10, s.bl_tree);
- send_bits(s, count - 3, 3);
- } else {
- send_code(s, REPZ_11_138, s.bl_tree);
- send_bits(s, count - 11, 7);
- }
- count = 0;
- prevlen = curlen;
- if (nextlen === 0) {
- max_count = 138;
- min_count = 3;
- } else if (curlen === nextlen) {
- max_count = 6;
- min_count = 3;
- } else {
- max_count = 7;
- min_count = 4;
- }
- }
- }
- function build_bl_tree(s) {
- var max_blindex;
-
- scan_tree(s, s.dyn_ltree, s.l_desc.max_code);
- scan_tree(s, s.dyn_dtree, s.d_desc.max_code);
-
- build_tree(s, s.bl_desc);
-
-
- for (max_blindex = BL_CODES - 1; max_blindex >= 3; max_blindex--) {
- if (s.bl_tree[bl_order[max_blindex] * 2 + 1] !== 0) {
- break;
- }
- }
-
- s.opt_len += 3 * (max_blindex + 1) + 5 + 5 + 4;
-
-
- return max_blindex;
- }
- function send_all_trees(s, lcodes, dcodes, blcodes)
- // deflate_state *s;
- // int lcodes, dcodes, blcodes; /* number of codes for each tree */
- {
- var rank;
-
-
-
-
- send_bits(s, lcodes - 257, 5);
- send_bits(s, dcodes - 1, 5);
- send_bits(s, blcodes - 4, 4);
- for (rank = 0; rank < blcodes; rank++) {
-
- send_bits(s, s.bl_tree[bl_order[rank] * 2 + 1], 3);
- }
-
- send_tree(s, s.dyn_ltree, lcodes - 1);
-
- send_tree(s, s.dyn_dtree, dcodes - 1);
-
- }
- function detect_data_type(s) {
-
- var black_mask = 0xf3ffc07f;
- var n;
-
- for (n = 0; n <= 31; n++, black_mask >>>= 1) {
- if ((black_mask & 1) && (s.dyn_ltree[n * 2] !== 0)) {
- return Z_BINARY;
- }
- }
-
- if (s.dyn_ltree[9 * 2] !== 0 || s.dyn_ltree[10 * 2] !== 0 ||
- s.dyn_ltree[13 * 2] !== 0) {
- return Z_TEXT;
- }
- for (n = 32; n < LITERALS; n++) {
- if (s.dyn_ltree[n * 2] !== 0) {
- return Z_TEXT;
- }
- }
-
- return Z_BINARY;
- }
- var static_init_done = false;
- function _tr_init(s)
- {
- if (!static_init_done) {
- tr_static_init();
- static_init_done = true;
- }
- s.l_desc = new TreeDesc(s.dyn_ltree, static_l_desc);
- s.d_desc = new TreeDesc(s.dyn_dtree, static_d_desc);
- s.bl_desc = new TreeDesc(s.bl_tree, static_bl_desc);
- s.bi_buf = 0;
- s.bi_valid = 0;
-
- init_block(s);
- }
- function _tr_stored_block(s, buf, stored_len, last)
- //DeflateState *s;
- //charf *buf; /* input block */
- //ulg stored_len; /* length of input block */
- //int last; /* one if this is the last block for a file */
- {
- send_bits(s, (STORED_BLOCK << 1) + (last ? 1 : 0), 3);
- copy_block(s, buf, stored_len, true);
- }
- function _tr_align(s) {
- send_bits(s, STATIC_TREES << 1, 3);
- send_code(s, END_BLOCK, static_ltree);
- bi_flush(s);
- }
- function _tr_flush_block(s, buf, stored_len, last)
- //DeflateState *s;
- //charf *buf; /* input block, or NULL if too old */
- //ulg stored_len; /* length of input block */
- //int last; /* one if this is the last block for a file */
- {
- var opt_lenb, static_lenb;
- var max_blindex = 0;
-
- if (s.level > 0) {
-
- if (s.strm.data_type === Z_UNKNOWN) {
- s.strm.data_type = detect_data_type(s);
- }
-
- build_tree(s, s.l_desc);
-
-
- build_tree(s, s.d_desc);
-
-
-
-
- max_blindex = build_bl_tree(s);
-
- opt_lenb = (s.opt_len + 3 + 7) >>> 3;
- static_lenb = (s.static_len + 3 + 7) >>> 3;
-
-
-
- if (static_lenb <= opt_lenb) { opt_lenb = static_lenb; }
- } else {
-
- opt_lenb = static_lenb = stored_len + 5;
- }
- if ((stored_len + 4 <= opt_lenb) && (buf !== -1)) {
-
-
- _tr_stored_block(s, buf, stored_len, last);
- } else if (s.strategy === Z_FIXED || static_lenb === opt_lenb) {
- send_bits(s, (STATIC_TREES << 1) + (last ? 1 : 0), 3);
- compress_block(s, static_ltree, static_dtree);
- } else {
- send_bits(s, (DYN_TREES << 1) + (last ? 1 : 0), 3);
- send_all_trees(s, s.l_desc.max_code + 1, s.d_desc.max_code + 1, max_blindex + 1);
- compress_block(s, s.dyn_ltree, s.dyn_dtree);
- }
-
-
- init_block(s);
- if (last) {
- bi_windup(s);
- }
-
-
- }
- function _tr_tally(s, dist, lc)
- // deflate_state *s;
- // unsigned dist; /* distance of matched string */
- // unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */
- {
-
- s.pending_buf[s.d_buf + s.last_lit * 2] = (dist >>> 8) & 0xff;
- s.pending_buf[s.d_buf + s.last_lit * 2 + 1] = dist & 0xff;
- s.pending_buf[s.l_buf + s.last_lit] = lc & 0xff;
- s.last_lit++;
- if (dist === 0) {
-
- s.dyn_ltree[lc * 2]++;
- } else {
- s.matches++;
-
- dist--;
-
-
-
- s.dyn_ltree[(_length_code[lc] + LITERALS + 1) * 2]++;
- s.dyn_dtree[d_code(dist) * 2]++;
- }
- return (s.last_lit === s.lit_bufsize - 1);
-
- }
- exports._tr_init = _tr_init;
- exports._tr_stored_block = _tr_stored_block;
- exports._tr_flush_block = _tr_flush_block;
- exports._tr_tally = _tr_tally;
- exports._tr_align = _tr_align;
- },{"../utils/common":39}],49:[function(require,module,exports){
- 'use strict';
- function ZStream() {
-
- this.input = null;
- this.next_in = 0;
-
- this.avail_in = 0;
-
- this.total_in = 0;
-
- this.output = null;
- this.next_out = 0;
-
- this.avail_out = 0;
-
- this.total_out = 0;
-
- this.msg = '';
-
- this.state = null;
-
- this.data_type = 2;
-
- this.adler = 0;
- }
- module.exports = ZStream;
- },{}],50:[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;
- } else {
- module.exports = process.nextTick;
- }
- 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":51}],51:[function(require,module,exports){
- var process = module.exports = {};
- 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) {
-
- return setTimeout(fun, 0);
- }
-
- if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
- cachedSetTimeout = setTimeout;
- return setTimeout(fun, 0);
- }
- try {
-
- return cachedSetTimeout(fun, 0);
- } catch(e){
- try {
-
- return cachedSetTimeout.call(null, fun, 0);
- } catch(e){
-
- return cachedSetTimeout.call(this, fun, 0);
- }
- }
- }
- function runClearTimeout(marker) {
- if (cachedClearTimeout === clearTimeout) {
-
- return clearTimeout(marker);
- }
-
- if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
- cachedClearTimeout = clearTimeout;
- return clearTimeout(marker);
- }
- try {
-
- return cachedClearTimeout(marker);
- } catch (e){
- try {
-
- return cachedClearTimeout.call(null, marker);
- } catch (e){
-
-
- 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);
- }
- };
- 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 = '';
- 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; };
- },{}],52:[function(require,module,exports){
- module.exports = require('./lib/_stream_duplex.js');
- },{"./lib/_stream_duplex.js":53}],53:[function(require,module,exports){
- 'use strict';
- var objectKeys = Object.keys || function (obj) {
- var keys = [];
- for (var key in obj) {
- keys.push(key);
- }return keys;
- };
- module.exports = Duplex;
- var processNextTick = require('process-nextick-args');
- var util = require('core-util-is');
- util.inherits = require('inherits');
- var Readable = require('./_stream_readable');
- var Writable = require('./_stream_writable');
- util.inherits(Duplex, Readable);
- 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);
- }
- function onend() {
-
-
- if (this.allowHalfOpen || this._writableState.ended) return;
-
-
- processNextTick(onEndNT, this);
- }
- function onEndNT(self) {
- self.end();
- }
- function forEach(xs, f) {
- for (var i = 0, l = xs.length; i < l; i++) {
- f(xs[i], i);
- }
- }
- },{"./_stream_readable":55,"./_stream_writable":57,"core-util-is":33,"inherits":36,"process-nextick-args":50}],54:[function(require,module,exports){
- 'use strict';
- module.exports = PassThrough;
- var Transform = require('./_stream_transform');
- var util = require('core-util-is');
- util.inherits = require('inherits');
- 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":56,"core-util-is":33,"inherits":36}],55:[function(require,module,exports){
- (function (process){
- 'use strict';
- module.exports = Readable;
- var processNextTick = require('process-nextick-args');
- var isArray = require('isarray');
- var Duplex;
- Readable.ReadableState = ReadableState;
- var EE = require('events').EventEmitter;
- var EElistenerCount = function (emitter, type) {
- return emitter.listeners(type).length;
- };
- var Stream = require('./internal/streams/stream');
- var Buffer = require('buffer').Buffer;
- var bufferShim = require('buffer-shims');
- var util = require('core-util-is');
- util.inherits = require('inherits');
- var debugUtil = require('util');
- var debug = void 0;
- if (debugUtil && debugUtil.debuglog) {
- debug = debugUtil.debuglog('stream');
- } else {
- debug = function () {};
- }
- var BufferList = require('./internal/streams/BufferList');
- var StringDecoder;
- util.inherits(Readable, Stream);
- var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
- function prependListener(emitter, event, fn) {
-
-
- if (typeof emitter.prependListener === 'function') {
- return emitter.prependListener(event, fn);
- } else {
-
-
-
-
- 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 || {};
-
-
- this.objectMode = !!options.objectMode;
- if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
-
-
- var hwm = options.highWaterMark;
- var defaultHwm = this.objectMode ? 16 : 16 * 1024;
- this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
-
- this.highWaterMark = ~~this.highWaterMark;
-
-
-
- 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;
-
-
-
-
- this.sync = true;
-
-
- this.needReadable = false;
- this.emittedReadable = false;
- this.readableListening = false;
- this.resumeScheduled = false;
-
-
-
- this.defaultEncoding = options.defaultEncoding || 'utf8';
-
-
- this.ranOut = false;
-
- this.awaitDrain = 0;
-
- 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);
-
- this.readable = true;
- if (options && typeof options.read === 'function') this._read = options.read;
- Stream.call(this);
- }
- Readable.prototype.push = function (chunk, encoding) {
- var state = this._readableState;
- if (!state.objectMode && typeof chunk === 'string') {
- encoding = encoding || state.defaultEncoding;
- if (encoding !== state.encoding) {
- chunk = bufferShim.from(chunk, encoding);
- encoding = '';
- }
- }
- return readableAddChunk(this, state, chunk, encoding, false);
- };
- Readable.prototype.unshift = function (chunk) {
- var state = this._readableState;
- return readableAddChunk(this, state, chunk, '', true);
- };
- Readable.prototype.isPaused = function () {
- return this._readableState.flowing === false;
- };
- function readableAddChunk(stream, state, chunk, encoding, addToFront) {
- var er = chunkInvalid(state, chunk);
- if (er) {
- stream.emit('error', er);
- } else if (chunk === null) {
- state.reading = false;
- onEofChunk(stream, state);
- } else if (state.objectMode || chunk && chunk.length > 0) {
- if (state.ended && !addToFront) {
- var e = new Error('stream.push() after EOF');
- stream.emit('error', e);
- } else if (state.endEmitted && addToFront) {
- var _e = new Error('stream.unshift() after end event');
- stream.emit('error', _e);
- } else {
- var skipAdd;
- if (state.decoder && !addToFront && !encoding) {
- chunk = state.decoder.write(chunk);
- skipAdd = !state.objectMode && chunk.length === 0;
- }
- if (!addToFront) state.reading = false;
-
-
- if (!skipAdd) {
-
- if (state.flowing && state.length === 0 && !state.sync) {
- stream.emit('data', chunk);
- stream.read(0);
- } else {
-
- 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);
- }
- } else if (!addToFront) {
- state.reading = false;
- }
- return needMoreData(state);
- }
- function needMoreData(state) {
- return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
- }
- Readable.prototype.setEncoding = function (enc) {
- if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
- this._readableState.decoder = new StringDecoder(enc);
- this._readableState.encoding = enc;
- return this;
- };
- var MAX_HWM = 0x800000;
- function computeNewHighWaterMark(n) {
- if (n >= MAX_HWM) {
- n = MAX_HWM;
- } else {
-
-
- n--;
- n |= n >>> 1;
- n |= n >>> 2;
- n |= n >>> 4;
- n |= n >>> 8;
- n |= n >>> 16;
- n++;
- }
- return n;
- }
- function howMuchToRead(n, state) {
- if (n <= 0 || state.length === 0 && state.ended) return 0;
- if (state.objectMode) return 1;
- if (n !== n) {
-
- if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
- }
-
- if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
- if (n <= state.length) return n;
-
- if (!state.ended) {
- state.needReadable = true;
- return 0;
- }
- return state.length;
- }
- 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 (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 (n === 0 && state.ended) {
- if (state.length === 0) endReadable(this);
- return null;
- }
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- var doRead = state.needReadable;
- debug('need readable', doRead);
-
- if (state.length === 0 || state.length - n < state.highWaterMark) {
- doRead = true;
- debug('length less than watermark', doRead);
- }
-
-
- 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 (state.length === 0) state.needReadable = true;
-
- this._read(state.highWaterMark);
- state.sync = false;
-
-
- 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 (!state.ended) state.needReadable = true;
-
- if (nOrig !== n && state.ended) endReadable(this);
- }
- if (ret !== null) this.emit('data', ret);
- return ret;
- };
- function chunkInvalid(state, chunk) {
- var er = null;
- if (!Buffer.isBuffer(chunk) && typeof chunk !== 'string' && chunk !== null && chunk !== undefined && !state.objectMode) {
- er = new TypeError('Invalid non-string/buffer chunk');
- }
- return er;
- }
- 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;
-
- emitReadable(stream);
- }
- function emitReadable(stream) {
- var state = stream._readableState;
- state.needReadable = false;
- if (!state.emittedReadable) {
- debug('emitReadable', state.flowing);
- state.emittedReadable = true;
- if (state.sync) processNextTick(emitReadable_, stream);else emitReadable_(stream);
- }
- }
- function emitReadable_(stream) {
- debug('emit readable');
- stream.emit('readable');
- flow(stream);
- }
- function maybeReadMore(stream, state) {
- if (!state.readingMore) {
- state.readingMore = true;
- processNextTick(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)
-
- break;else len = state.length;
- }
- state.readingMore = false;
- }
- 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 : cleanup;
- if (state.endEmitted) processNextTick(endFn);else src.once('end', endFn);
- dest.on('unpipe', onunpipe);
- function onunpipe(readable) {
- debug('onunpipe');
- if (readable === src) {
- cleanup();
- }
- }
- function onend() {
- debug('onend');
- dest.end();
- }
-
-
-
-
- var ondrain = pipeOnDrain(src);
- dest.on('drain', ondrain);
- var cleanedUp = false;
- function cleanup() {
- debug('cleanup');
-
- 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', cleanup);
- src.removeListener('data', ondata);
- cleanedUp = true;
-
-
-
-
-
- if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
- }
-
-
-
-
- var increasedAwaitDrain = false;
- src.on('data', ondata);
- function ondata(chunk) {
- debug('ondata');
- increasedAwaitDrain = false;
- var ret = dest.write(chunk);
- if (false === ret && !increasedAwaitDrain) {
-
-
-
-
- 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();
- }
- }
-
-
- function onerror(er) {
- debug('onerror', er);
- unpipe();
- dest.removeListener('error', onerror);
- if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
- }
-
- prependListener(dest, 'error', onerror);
-
- 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);
- }
-
- dest.emit('pipe', src);
-
- 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;
-
- if (state.pipesCount === 0) return this;
-
- if (state.pipesCount === 1) {
-
- if (dest && dest !== state.pipes) return this;
- if (!dest) dest = state.pipes;
-
- state.pipes = null;
- state.pipesCount = 0;
- state.flowing = false;
- if (dest) dest.emit('unpipe', this);
- return this;
- }
-
- if (!dest) {
-
- 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);
- }return this;
- }
-
- 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);
- return this;
- };
- Readable.prototype.on = function (ev, fn) {
- var res = Stream.prototype.on.call(this, ev, fn);
- if (ev === 'data') {
-
- 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) {
- processNextTick(nReadingNextTick, this);
- } else if (state.length) {
- emitReadable(this, state);
- }
- }
- }
- return res;
- };
- Readable.prototype.addListener = Readable.prototype.on;
- function nReadingNextTick(self) {
- debug('readable nexttick read 0');
- self.read(0);
- }
- 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;
- processNextTick(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) {}
- }
- Readable.prototype.wrap = function (stream) {
- var state = this._readableState;
- var paused = false;
- var self = this;
- stream.on('end', function () {
- debug('wrapped end');
- if (state.decoder && !state.ended) {
- var chunk = state.decoder.end();
- if (chunk && chunk.length) self.push(chunk);
- }
- self.push(null);
- });
- stream.on('data', function (chunk) {
- debug('wrapped data');
- if (state.decoder) chunk = state.decoder.write(chunk);
-
- if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
- var ret = self.push(chunk);
- if (!ret) {
- paused = true;
- stream.pause();
- }
- });
-
-
- 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);
- }
- }
-
- for (var n = 0; n < kProxyEvents.length; n++) {
- stream.on(kProxyEvents[n], self.emit.bind(self, kProxyEvents[n]));
- }
-
-
- self._read = function (n) {
- debug('wrapped _read', n);
- if (paused) {
- paused = false;
- stream.resume();
- }
- };
- return self;
- };
- Readable._fromList = fromList;
- function fromList(n, state) {
-
- if (state.length === 0) return null;
- var ret;
- if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
-
- 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 {
-
- ret = fromListPartial(n, state.buffer, state.decoder);
- }
- return ret;
- }
- function fromListPartial(n, list, hasStrings) {
- var ret;
- if (n < list.head.data.length) {
-
- ret = list.head.data.slice(0, n);
- list.head.data = list.head.data.slice(n);
- } else if (n === list.head.data.length) {
-
- ret = list.shift();
- } else {
-
- ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
- }
- return ret;
- }
- 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;
- }
- function copyFromBuffer(n, list) {
- var ret = bufferShim.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 (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
- if (!state.endEmitted) {
- state.ended = true;
- processNextTick(endReadableNT, state, stream);
- }
- }
- function endReadableNT(state, stream) {
-
- if (!state.endEmitted && state.length === 0) {
- state.endEmitted = true;
- stream.readable = false;
- stream.emit('end');
- }
- }
- function forEach(xs, f) {
- for (var i = 0, l = xs.length; i < l; i++) {
- f(xs[i], i);
- }
- }
- 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'))
- },{"./_stream_duplex":53,"./internal/streams/BufferList":58,"./internal/streams/stream":59,"_process":51,"buffer":32,"buffer-shims":31,"core-util-is":33,"events":34,"inherits":36,"isarray":38,"process-nextick-args":50,"string_decoder/":65,"util":28}],56:[function(require,module,exports){
- 'use strict';
- module.exports = Transform;
- var Duplex = require('./_stream_duplex');
- var util = require('core-util-is');
- util.inherits = require('inherits');
- util.inherits(Transform, Duplex);
- function TransformState(stream) {
- this.afterTransform = function (er, data) {
- return afterTransform(stream, er, data);
- };
- this.needTransform = false;
- this.transforming = false;
- this.writecb = null;
- this.writechunk = null;
- this.writeencoding = null;
- }
- function afterTransform(stream, er, data) {
- var ts = stream._transformState;
- ts.transforming = false;
- var cb = ts.writecb;
- if (!cb) return stream.emit('error', new Error('no writecb in Transform class'));
- ts.writechunk = null;
- ts.writecb = null;
- if (data !== null && data !== undefined) stream.push(data);
- cb(er);
- var rs = stream._readableState;
- rs.reading = false;
- if (rs.needReadable || rs.length < rs.highWaterMark) {
- stream._read(rs.highWaterMark);
- }
- }
- function Transform(options) {
- if (!(this instanceof Transform)) return new Transform(options);
- Duplex.call(this, options);
- this._transformState = new TransformState(this);
- var stream = this;
-
- this._readableState.needReadable = true;
-
-
-
- this._readableState.sync = false;
- if (options) {
- if (typeof options.transform === 'function') this._transform = options.transform;
- if (typeof options.flush === 'function') this._flush = options.flush;
- }
-
- this.once('prefinish', function () {
- if (typeof this._flush === 'function') this._flush(function (er, data) {
- done(stream, er, data);
- });else done(stream);
- });
- }
- Transform.prototype.push = function (chunk, encoding) {
- this._transformState.needTransform = false;
- return Duplex.prototype.push.call(this, chunk, encoding);
- };
- 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);
- }
- };
- 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 {
-
-
- ts.needTransform = true;
- }
- };
- function done(stream, er, data) {
- if (er) return stream.emit('error', er);
- if (data !== null && data !== undefined) stream.push(data);
-
-
- var ws = stream._writableState;
- var ts = stream._transformState;
- if (ws.length) throw new Error('Calling transform done when ws.length != 0');
- if (ts.transforming) throw new Error('Calling transform done when still transforming');
- return stream.push(null);
- }
- },{"./_stream_duplex":53,"core-util-is":33,"inherits":36}],57:[function(require,module,exports){
- (function (process,setImmediate){
- 'use strict';
- module.exports = Writable;
- var processNextTick = require('process-nextick-args');
- var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick;
- var Duplex;
- Writable.WritableState = WritableState;
- var util = require('core-util-is');
- util.inherits = require('inherits');
- var internalUtil = {
- deprecate: require('util-deprecate')
- };
- var Stream = require('./internal/streams/stream');
- var Buffer = require('buffer').Buffer;
- var bufferShim = require('buffer-shims');
- util.inherits(Writable, Stream);
- function nop() {}
- function WriteReq(chunk, encoding, cb) {
- this.chunk = chunk;
- this.encoding = encoding;
- this.callback = cb;
- this.next = null;
- }
- function WritableState(options, stream) {
- Duplex = Duplex || require('./_stream_duplex');
- options = options || {};
-
-
- this.objectMode = !!options.objectMode;
- if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
-
-
-
- var hwm = options.highWaterMark;
- var defaultHwm = this.objectMode ? 16 : 16 * 1024;
- this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
-
- this.highWaterMark = ~~this.highWaterMark;
-
- this.needDrain = false;
-
- this.ending = false;
-
- this.ended = false;
-
- this.finished = false;
-
-
-
- var noDecode = options.decodeStrings === false;
- this.decodeStrings = !noDecode;
-
-
-
- this.defaultEncoding = options.defaultEncoding || 'utf8';
-
-
-
- this.length = 0;
-
- this.writing = false;
-
- this.corked = 0;
-
-
-
-
- this.sync = true;
-
-
-
- this.bufferProcessing = false;
-
- this.onwrite = function (er) {
- onwrite(stream, er);
- };
-
- this.writecb = null;
-
- this.writelen = 0;
- this.bufferedRequest = null;
- this.lastBufferedRequest = null;
-
-
- this.pendingcb = 0;
-
-
- this.prefinished = false;
-
- this.errorEmitted = false;
-
- this.bufferedRequestCount = 0;
-
-
- 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.')
- });
- } catch (_) {}
- })();
- 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;
- return object && object._writableState instanceof WritableState;
- }
- });
- } else {
- realHasInstance = function (object) {
- return object instanceof this;
- };
- }
- function Writable(options) {
- Duplex = Duplex || require('./_stream_duplex');
-
-
-
-
-
-
- if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
- return new Writable(options);
- }
- this._writableState = new WritableState(options, this);
-
- this.writable = true;
- if (options) {
- if (typeof options.write === 'function') this._write = options.write;
- if (typeof options.writev === 'function') this._writev = options.writev;
- }
- Stream.call(this);
- }
- Writable.prototype.pipe = function () {
- this.emit('error', new Error('Cannot pipe, not readable'));
- };
- function writeAfterEnd(stream, cb) {
- var er = new Error('write after end');
-
- stream.emit('error', er);
- processNextTick(cb, er);
- }
- 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);
- processNextTick(cb, er);
- valid = false;
- }
- return valid;
- }
- Writable.prototype.write = function (chunk, encoding, cb) {
- var state = this._writableState;
- var ret = false;
- var isBuf = Buffer.isBuffer(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) {
-
- 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 = bufferShim.from(chunk, encoding);
- }
- return chunk;
- }
- function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
- if (!isBuf) {
- chunk = decodeChunk(state, chunk, encoding);
- if (Buffer.isBuffer(chunk)) encoding = 'buffer';
- }
- var len = state.objectMode ? 1 : chunk.length;
- state.length += len;
- var ret = state.length < state.highWaterMark;
-
- if (!ret) state.needDrain = true;
- if (state.writing || state.corked) {
- var last = state.lastBufferedRequest;
- state.lastBufferedRequest = new WriteReq(chunk, encoding, cb);
- 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) processNextTick(cb, er);else cb(er);
- stream._writableState.errorEmitted = true;
- stream.emit('error', er);
- }
- 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 {
-
- var finished = needFinish(state);
- if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
- clearBuffer(stream, state);
- }
- if (sync) {
-
- asyncWrite(afterWrite, stream, state, finished, cb);
-
- } else {
- afterWrite(stream, state, finished, cb);
- }
- }
- }
- function afterWrite(stream, state, finished, cb) {
- if (!finished) onwriteDrain(stream, state);
- state.pendingcb--;
- cb();
- finishMaybe(stream, state);
- }
- function onwriteDrain(stream, state) {
- if (state.length === 0 && state.needDrain) {
- state.needDrain = false;
- stream.emit('drain');
- }
- }
- function clearBuffer(stream, state) {
- state.bufferProcessing = true;
- var entry = state.bufferedRequest;
- if (stream._writev && entry && entry.next) {
-
- var l = state.bufferedRequestCount;
- var buffer = new Array(l);
- var holder = state.corkedRequestsFree;
- holder.entry = entry;
- var count = 0;
- while (entry) {
- buffer[count] = entry;
- entry = entry.next;
- count += 1;
- }
- doWrite(stream, state, true, state.length, buffer, '', holder.finish);
-
-
- state.pendingcb++;
- state.lastBufferedRequest = null;
- if (holder.next) {
- state.corkedRequestsFree = holder.next;
- holder.next = null;
- } else {
- state.corkedRequestsFree = new CorkedRequest(state);
- }
- } else {
-
- 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;
-
-
-
-
- if (state.writing) {
- break;
- }
- }
- if (entry === null) state.lastBufferedRequest = null;
- }
- state.bufferedRequestCount = 0;
- 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);
-
- if (state.corked) {
- state.corked = 1;
- this.uncork();
- }
-
- 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 prefinish(stream, state) {
- if (!state.prefinished) {
- state.prefinished = true;
- stream.emit('prefinish');
- }
- }
- function finishMaybe(stream, state) {
- var need = needFinish(state);
- if (need) {
- if (state.pendingcb === 0) {
- prefinish(stream, state);
- state.finished = true;
- stream.emit('finish');
- } else {
- prefinish(stream, state);
- }
- }
- return need;
- }
- function endWritable(stream, state, cb) {
- state.ending = true;
- finishMaybe(stream, state);
- if (cb) {
- if (state.finished) processNextTick(cb);else stream.once('finish', cb);
- }
- state.ended = true;
- stream.writable = false;
- }
- function CorkedRequest(state) {
- var _this = this;
- this.next = null;
- this.entry = null;
- this.finish = function (err) {
- var entry = _this.entry;
- _this.entry = null;
- while (entry) {
- var cb = entry.callback;
- state.pendingcb--;
- cb(err);
- entry = entry.next;
- }
- if (state.corkedRequestsFree) {
- state.corkedRequestsFree.next = _this;
- } else {
- state.corkedRequestsFree = _this;
- }
- };
- }
- }).call(this,require('_process'),require("timers").setImmediate)
- },{"./_stream_duplex":53,"./internal/streams/stream":59,"_process":51,"buffer":32,"buffer-shims":31,"core-util-is":33,"inherits":36,"process-nextick-args":50,"timers":66,"util-deprecate":67}],58:[function(require,module,exports){
- 'use strict';
- var Buffer = require('buffer').Buffer;
- var bufferShim = require('buffer-shims');
- module.exports = BufferList;
- function BufferList() {
- this.head = null;
- this.tail = null;
- this.length = 0;
- }
- BufferList.prototype.push = function (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 (v) {
- var entry = { data: v, next: this.head };
- if (this.length === 0) this.tail = entry;
- this.head = entry;
- ++this.length;
- };
- BufferList.prototype.shift = function () {
- 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 () {
- this.head = this.tail = null;
- this.length = 0;
- };
- BufferList.prototype.join = function (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 (n) {
- if (this.length === 0) return bufferShim.alloc(0);
- if (this.length === 1) return this.head.data;
- var ret = bufferShim.allocUnsafe(n >>> 0);
- var p = this.head;
- var i = 0;
- while (p) {
- p.data.copy(ret, i);
- i += p.data.length;
- p = p.next;
- }
- return ret;
- };
- },{"buffer":32,"buffer-shims":31}],59:[function(require,module,exports){
- module.exports = require('events').EventEmitter;
- },{"events":34}],60:[function(require,module,exports){
- module.exports = require('./readable').PassThrough
- },{"./readable":61}],61:[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":53,"./lib/_stream_passthrough.js":54,"./lib/_stream_readable.js":55,"./lib/_stream_transform.js":56,"./lib/_stream_writable.js":57}],62:[function(require,module,exports){
- module.exports = require('./readable').Transform
- },{"./readable":61}],63:[function(require,module,exports){
- module.exports = require('./lib/_stream_writable.js');
- },{"./lib/_stream_writable.js":57}],64:[function(require,module,exports){
- 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');
- Stream.Stream = Stream;
- 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 (!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();
- }
-
- function onerror(er) {
- cleanup();
- if (EE.listenerCount(this, 'error') === 0) {
- throw er;
- }
- }
- source.on('error', onerror);
- dest.on('error', onerror);
-
- 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);
-
- return dest;
- };
- },{"events":34,"inherits":36,"readable-stream/duplex.js":52,"readable-stream/passthrough.js":60,"readable-stream/readable.js":61,"readable-stream/transform.js":62,"readable-stream/writable.js":63}],65:[function(require,module,exports){
- 'use strict';
- var Buffer = require('buffer').Buffer;
- var bufferShim = require('buffer-shims');
- 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;
- enc = ('' + enc).toLowerCase();
- retried = true;
- }
- }
- };
- 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;
- }
- 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 = bufferShim.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;
- StringDecoder.prototype.text = utf8Text;
- 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;
- };
- 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 -1;
- }
- 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) return 0;
- nb = utf8CheckByte(buf[j]);
- if (nb >= 0) {
- if (nb > 0) self.lastNeed = nb - 2;
- return nb;
- }
- if (--j < i) 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;
- }
- function utf8CheckExtraBytes(self, buf, p) {
- if ((buf[0] & 0xC0) !== 0x80) {
- self.lastNeed = 0;
- return '\ufffd'.repeat(p);
- }
- if (self.lastNeed > 1 && buf.length > 1) {
- if ((buf[1] & 0xC0) !== 0x80) {
- self.lastNeed = 1;
- return '\ufffd'.repeat(p + 1);
- }
- if (self.lastNeed > 2 && buf.length > 2) {
- if ((buf[2] & 0xC0) !== 0x80) {
- self.lastNeed = 2;
- return '\ufffd'.repeat(p + 2);
- }
- }
- }
- }
- 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;
- }
- 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);
- }
- function utf8End(buf) {
- var r = buf && buf.length ? this.write(buf) : '';
- if (this.lastNeed) return r + '\ufffd'.repeat(this.lastTotal - this.lastNeed);
- return r;
- }
- 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);
- }
- 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;
- }
- function simpleWrite(buf) {
- return buf.toString(this.encoding);
- }
- function simpleEnd(buf) {
- return buf && buf.length ? this.write(buf) : '';
- }
- },{"buffer":32,"buffer-shims":31}],66:[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;
- 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);
- };
- 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);
- }
- };
- 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]) {
-
-
- if (args) {
- fn.apply(null, args);
- } else {
- fn.call(null);
- }
-
- 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":51,"timers":66}],67:[function(require,module,exports){
- (function (global){
- module.exports = deprecate;
- 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;
- }
- function config (name) {
-
- 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 : {})
- },{}],68:[function(require,module,exports){
- arguments[4][25][0].apply(exports,arguments)
- },{"dup":25}],69:[function(require,module,exports){
- arguments[4][26][0].apply(exports,arguments)
- },{"./support/isBuffer":68,"_process":51,"dup":26,"inherits":36}]},{},[20])(20)
- });
|