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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.pako = 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){
- '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);
- },{}],2:[function(require,module,exports){
- 'use strict';
- var utils = require('./common');
- var STR_APPLY_OK = true;
- var STR_APPLY_UIA_OK = true;
- try { String.fromCharCode.apply(null, [ 0 ]); } catch (__) { STR_APPLY_OK = false; }
- try { String.fromCharCode.apply(null, new Uint8Array(1)); } catch (__) { STR_APPLY_UIA_OK = false; }
- var _utf8len = new utils.Buf8(256);
- for (var q = 0; q < 256; q++) {
- _utf8len[q] = (q >= 252 ? 6 : q >= 248 ? 5 : q >= 240 ? 4 : q >= 224 ? 3 : q >= 192 ? 2 : 1);
- }
- _utf8len[254] = _utf8len[254] = 1;
- exports.string2buf = function (str) {
- var buf, c, c2, m_pos, i, str_len = str.length, buf_len = 0;
-
- for (m_pos = 0; m_pos < str_len; m_pos++) {
- c = str.charCodeAt(m_pos);
- if ((c & 0xfc00) === 0xd800 && (m_pos + 1 < str_len)) {
- c2 = str.charCodeAt(m_pos + 1);
- if ((c2 & 0xfc00) === 0xdc00) {
- c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);
- m_pos++;
- }
- }
- buf_len += c < 0x80 ? 1 : c < 0x800 ? 2 : c < 0x10000 ? 3 : 4;
- }
-
- buf = new utils.Buf8(buf_len);
-
- for (i = 0, m_pos = 0; i < buf_len; m_pos++) {
- c = str.charCodeAt(m_pos);
- if ((c & 0xfc00) === 0xd800 && (m_pos + 1 < str_len)) {
- c2 = str.charCodeAt(m_pos + 1);
- if ((c2 & 0xfc00) === 0xdc00) {
- c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);
- m_pos++;
- }
- }
- if (c < 0x80) {
-
- buf[i++] = c;
- } else if (c < 0x800) {
-
- buf[i++] = 0xC0 | (c >>> 6);
- buf[i++] = 0x80 | (c & 0x3f);
- } else if (c < 0x10000) {
-
- buf[i++] = 0xE0 | (c >>> 12);
- buf[i++] = 0x80 | (c >>> 6 & 0x3f);
- buf[i++] = 0x80 | (c & 0x3f);
- } else {
-
- buf[i++] = 0xf0 | (c >>> 18);
- buf[i++] = 0x80 | (c >>> 12 & 0x3f);
- buf[i++] = 0x80 | (c >>> 6 & 0x3f);
- buf[i++] = 0x80 | (c & 0x3f);
- }
- }
- return buf;
- };
- function buf2binstring(buf, len) {
-
-
-
- if (len < 65534) {
- if ((buf.subarray && STR_APPLY_UIA_OK) || (!buf.subarray && STR_APPLY_OK)) {
- return String.fromCharCode.apply(null, utils.shrinkBuf(buf, len));
- }
- }
- var result = '';
- for (var i = 0; i < len; i++) {
- result += String.fromCharCode(buf[i]);
- }
- return result;
- }
- exports.buf2binstring = function (buf) {
- return buf2binstring(buf, buf.length);
- };
- exports.binstring2buf = function (str) {
- var buf = new utils.Buf8(str.length);
- for (var i = 0, len = buf.length; i < len; i++) {
- buf[i] = str.charCodeAt(i);
- }
- return buf;
- };
- exports.buf2string = function (buf, max) {
- var i, out, c, c_len;
- var len = max || buf.length;
-
-
-
- var utf16buf = new Array(len * 2);
- for (out = 0, i = 0; i < len;) {
- c = buf[i++];
-
- if (c < 0x80) { utf16buf[out++] = c; continue; }
- c_len = _utf8len[c];
-
- if (c_len > 4) { utf16buf[out++] = 0xfffd; i += c_len - 1; continue; }
-
- c &= c_len === 2 ? 0x1f : c_len === 3 ? 0x0f : 0x07;
-
- while (c_len > 1 && i < len) {
- c = (c << 6) | (buf[i++] & 0x3f);
- c_len--;
- }
-
- if (c_len > 1) { utf16buf[out++] = 0xfffd; continue; }
- if (c < 0x10000) {
- utf16buf[out++] = c;
- } else {
- c -= 0x10000;
- utf16buf[out++] = 0xd800 | ((c >> 10) & 0x3ff);
- utf16buf[out++] = 0xdc00 | (c & 0x3ff);
- }
- }
- return buf2binstring(utf16buf, out);
- };
- exports.utf8border = function (buf, max) {
- var pos;
- max = max || buf.length;
- if (max > buf.length) { max = buf.length; }
-
- pos = max - 1;
- while (pos >= 0 && (buf[pos] & 0xC0) === 0x80) { pos--; }
-
-
- if (pos < 0) { return max; }
-
-
- if (pos === 0) { return max; }
- return (pos + _utf8len[buf[pos]] > max) ? pos : max;
- };
- },{"./common":1}],3:[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;
- },{}],4:[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
-
- };
- },{}],5:[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;
- },{}],6:[function(require,module,exports){
- 'use strict';
- function GZheader() {
-
- this.text = 0;
-
- this.time = 0;
-
- this.xflags = 0;
-
- this.os = 0;
-
- this.extra = null;
-
- this.extra_len = 0;
-
-
-
-
-
-
-
-
- this.name = '';
-
-
-
- this.comment = '';
-
-
-
- this.hcrc = 0;
-
- this.done = false;
- }
- module.exports = GZheader;
- },{}],7:[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;
- };
- },{}],8:[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":1,"./adler32":3,"./crc32":5,"./inffast":7,"./inftrees":9}],9:[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":1}],10:[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'
- };
- },{}],11:[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;
- },{}],"/lib/inflate.js":[function(require,module,exports){
- 'use strict';
- var zlib_inflate = require('./zlib/inflate');
- var utils = require('./utils/common');
- var strings = require('./utils/strings');
- var c = require('./zlib/constants');
- var msg = require('./zlib/messages');
- var ZStream = require('./zlib/zstream');
- var GZheader = require('./zlib/gzheader');
- var toString = Object.prototype.toString;
- function Inflate(options) {
- if (!(this instanceof Inflate)) return new Inflate(options);
- this.options = utils.assign({
- chunkSize: 16384,
- windowBits: 0,
- to: ''
- }, options || {});
- var opt = this.options;
-
-
- if (opt.raw && (opt.windowBits >= 0) && (opt.windowBits < 16)) {
- opt.windowBits = -opt.windowBits;
- if (opt.windowBits === 0) { opt.windowBits = -15; }
- }
-
- if ((opt.windowBits >= 0) && (opt.windowBits < 16) &&
- !(options && options.windowBits)) {
- opt.windowBits += 32;
- }
-
-
- if ((opt.windowBits > 15) && (opt.windowBits < 48)) {
-
-
- if ((opt.windowBits & 15) === 0) {
- opt.windowBits |= 15;
- }
- }
- this.err = 0;
- this.msg = '';
- this.ended = false;
- this.chunks = [];
- this.strm = new ZStream();
- this.strm.avail_out = 0;
- var status = zlib_inflate.inflateInit2(
- this.strm,
- opt.windowBits
- );
- if (status !== c.Z_OK) {
- throw new Error(msg[status]);
- }
- this.header = new GZheader();
- zlib_inflate.inflateGetHeader(this.strm, this.header);
-
- if (opt.dictionary) {
-
- if (typeof opt.dictionary === 'string') {
- opt.dictionary = strings.string2buf(opt.dictionary);
- } else if (toString.call(opt.dictionary) === '[object ArrayBuffer]') {
- opt.dictionary = new Uint8Array(opt.dictionary);
- }
- if (opt.raw) {
- status = zlib_inflate.inflateSetDictionary(this.strm, opt.dictionary);
- if (status !== c.Z_OK) {
- throw new Error(msg[status]);
- }
- }
- }
- }
- Inflate.prototype.push = function (data, mode) {
- var strm = this.strm;
- var chunkSize = this.options.chunkSize;
- var dictionary = this.options.dictionary;
- var status, _mode;
- var next_out_utf8, tail, utf8str;
-
-
- var allowBufError = false;
- if (this.ended) { return false; }
- _mode = (mode === ~~mode) ? mode : ((mode === true) ? c.Z_FINISH : c.Z_NO_FLUSH);
-
- if (typeof data === 'string') {
-
- strm.input = strings.binstring2buf(data);
- } else if (toString.call(data) === '[object ArrayBuffer]') {
- strm.input = new Uint8Array(data);
- } else {
- strm.input = data;
- }
- strm.next_in = 0;
- strm.avail_in = strm.input.length;
- do {
- if (strm.avail_out === 0) {
- strm.output = new utils.Buf8(chunkSize);
- strm.next_out = 0;
- strm.avail_out = chunkSize;
- }
- status = zlib_inflate.inflate(strm, c.Z_NO_FLUSH);
- if (status === c.Z_NEED_DICT && dictionary) {
- status = zlib_inflate.inflateSetDictionary(this.strm, dictionary);
- }
- if (status === c.Z_BUF_ERROR && allowBufError === true) {
- status = c.Z_OK;
- allowBufError = false;
- }
- if (status !== c.Z_STREAM_END && status !== c.Z_OK) {
- this.onEnd(status);
- this.ended = true;
- return false;
- }
- if (strm.next_out) {
- if (strm.avail_out === 0 || status === c.Z_STREAM_END || (strm.avail_in === 0 && (_mode === c.Z_FINISH || _mode === c.Z_SYNC_FLUSH))) {
- if (this.options.to === 'string') {
- next_out_utf8 = strings.utf8border(strm.output, strm.next_out);
- tail = strm.next_out - next_out_utf8;
- utf8str = strings.buf2string(strm.output, next_out_utf8);
-
- strm.next_out = tail;
- strm.avail_out = chunkSize - tail;
- if (tail) { utils.arraySet(strm.output, strm.output, next_out_utf8, tail, 0); }
- this.onData(utf8str);
- } else {
- this.onData(utils.shrinkBuf(strm.output, strm.next_out));
- }
- }
- }
-
-
-
-
-
-
-
- if (strm.avail_in === 0 && strm.avail_out === 0) {
- allowBufError = true;
- }
- } while ((strm.avail_in > 0 || strm.avail_out === 0) && status !== c.Z_STREAM_END);
- if (status === c.Z_STREAM_END) {
- _mode = c.Z_FINISH;
- }
-
- if (_mode === c.Z_FINISH) {
- status = zlib_inflate.inflateEnd(this.strm);
- this.onEnd(status);
- this.ended = true;
- return status === c.Z_OK;
- }
-
- if (_mode === c.Z_SYNC_FLUSH) {
- this.onEnd(c.Z_OK);
- strm.avail_out = 0;
- return true;
- }
- return true;
- };
- Inflate.prototype.onData = function (chunk) {
- this.chunks.push(chunk);
- };
- Inflate.prototype.onEnd = function (status) {
-
- if (status === c.Z_OK) {
- if (this.options.to === 'string') {
-
-
- this.result = this.chunks.join('');
- } else {
- this.result = utils.flattenChunks(this.chunks);
- }
- }
- this.chunks = [];
- this.err = status;
- this.msg = this.strm.msg;
- };
- function inflate(input, options) {
- var inflator = new Inflate(options);
- inflator.push(input, true);
-
- if (inflator.err) { throw inflator.msg || msg[inflator.err]; }
- return inflator.result;
- }
- function inflateRaw(input, options) {
- options = options || {};
- options.raw = true;
- return inflate(input, options);
- }
- exports.Inflate = Inflate;
- exports.inflate = inflate;
- exports.inflateRaw = inflateRaw;
- exports.ungzip = inflate;
- },{"./utils/common":1,"./utils/strings":2,"./zlib/constants":4,"./zlib/gzheader":6,"./zlib/inflate":8,"./zlib/messages":10,"./zlib/zstream":11}]},{},[])("/lib/inflate.js")
- });
|