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(function() { | |
zip.workerScriptsPath = './' | |
var readEntry = function(entry, onend, onprogress) { | |
entry.getData(new zip.TextWriter(), onend, onprogress); | |
} | |
var getEntries = function(file, callback) { | |
zip.createReader(new zip.BlobReader(file), function(zipReader) { | |
zipReader.getEntries(callback); | |
}, onerror); | |
}; | |
var mapEntries = function(entries, callbackMap) { | |
var feedFiles = d3.map(); | |
var cbMap = d3.map(callbackMap); | |
entries.forEach(function(entry) { | |
feedFiles.set(entry.filename, entry); | |
}); | |
cbMap.forEach(function(filename, callback) { | |
if (feedFiles.has(filename)) readEntry(feedFiles.get(filename), callback); | |
else alert(filename + ' does not exist'); | |
}); | |
}; | |
window.parseGtfs = function(file, actions) { | |
getEntries(file, function(entries) { | |
mapEntries(entries, actions); | |
}); | |
}; | |
})(); |
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset='utf-8'> | |
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"> | |
<link rel="stylesheet" href="https://npmcdn.com/leaflet@0.7.7/dist/leaflet.css"> | |
<style> | |
body { padding: 0; margin: 0; } | |
html, body, #map { height: 100%; } | |
#uploader { | |
position: absolute; | |
top: 10px ; | |
left: 50px; | |
background-color: white; | |
border: 2px solid black; | |
padding: 10px 20px; | |
} | |
</style> | |
</head> | |
<body> | |
<div id="map"></div> | |
<input type="file" id="uploader"> | |
<script src="zip.js"></script> | |
<script src="https://npmcdn.com/d3@3.5.17"></script> | |
<script src="https://npmcdn.com/leaflet@0.7.7/dist/leaflet.js"></script> | |
<script src="tile.stamen.js"></script> | |
<script src='gtfsParser.js'></script> | |
<script src='main.js'></script> | |
</body> | |
</html> |
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/* | |
Copyright (c) 2013 Gildas Lormeau. All rights reserved. | |
Redistribution and use in source and binary forms, with or without | |
modification, are permitted provided that the following conditions are met: | |
1. Redistributions of source code must retain the above copyright notice, | |
this list of conditions and the following disclaimer. | |
2. Redistributions in binary form must reproduce the above copyright | |
notice, this list of conditions and the following disclaimer in | |
the documentation and/or other materials provided with the distribution. | |
3. The names of the authors may not be used to endorse or promote products | |
derived from this software without specific prior written permission. | |
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, | |
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT, | |
INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, | |
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, | |
OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
/* | |
* This program is based on JZlib 1.0.2 ymnk, JCraft,Inc. | |
* JZlib is based on zlib-1.1.3, so all credit should go authors | |
* Jean-loup Gailly(jloup@gzip.org) and Mark Adler(madler@alumni.caltech.edu) | |
* and contributors of zlib. | |
*/ | |
(function(obj) { | |
"use strict"; | |
// Global | |
var MAX_BITS = 15; | |
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 inflate_mask = [ 0x00000000, 0x00000001, 0x00000003, 0x00000007, 0x0000000f, 0x0000001f, 0x0000003f, 0x0000007f, 0x000000ff, 0x000001ff, 0x000003ff, | |
0x000007ff, 0x00000fff, 0x00001fff, 0x00003fff, 0x00007fff, 0x0000ffff ]; | |
var MANY = 1440; | |
// JZlib version : "1.0.2" | |
var Z_NO_FLUSH = 0; | |
var Z_FINISH = 4; | |
// InfTree | |
var fixed_bl = 9; | |
var fixed_bd = 5; | |
var fixed_tl = [ 96, 7, 256, 0, 8, 80, 0, 8, 16, 84, 8, 115, 82, 7, 31, 0, 8, 112, 0, 8, 48, 0, 9, 192, 80, 7, 10, 0, 8, 96, 0, 8, 32, 0, 9, 160, 0, 8, 0, | |
0, 8, 128, 0, 8, 64, 0, 9, 224, 80, 7, 6, 0, 8, 88, 0, 8, 24, 0, 9, 144, 83, 7, 59, 0, 8, 120, 0, 8, 56, 0, 9, 208, 81, 7, 17, 0, 8, 104, 0, 8, 40, | |
0, 9, 176, 0, 8, 8, 0, 8, 136, 0, 8, 72, 0, 9, 240, 80, 7, 4, 0, 8, 84, 0, 8, 20, 85, 8, 227, 83, 7, 43, 0, 8, 116, 0, 8, 52, 0, 9, 200, 81, 7, 13, | |
0, 8, 100, 0, 8, 36, 0, 9, 168, 0, 8, 4, 0, 8, 132, 0, 8, 68, 0, 9, 232, 80, 7, 8, 0, 8, 92, 0, 8, 28, 0, 9, 152, 84, 7, 83, 0, 8, 124, 0, 8, 60, | |
0, 9, 216, 82, 7, 23, 0, 8, 108, 0, 8, 44, 0, 9, 184, 0, 8, 12, 0, 8, 140, 0, 8, 76, 0, 9, 248, 80, 7, 3, 0, 8, 82, 0, 8, 18, 85, 8, 163, 83, 7, | |
35, 0, 8, 114, 0, 8, 50, 0, 9, 196, 81, 7, 11, 0, 8, 98, 0, 8, 34, 0, 9, 164, 0, 8, 2, 0, 8, 130, 0, 8, 66, 0, 9, 228, 80, 7, 7, 0, 8, 90, 0, 8, | |
26, 0, 9, 148, 84, 7, 67, 0, 8, 122, 0, 8, 58, 0, 9, 212, 82, 7, 19, 0, 8, 106, 0, 8, 42, 0, 9, 180, 0, 8, 10, 0, 8, 138, 0, 8, 74, 0, 9, 244, 80, | |
7, 5, 0, 8, 86, 0, 8, 22, 192, 8, 0, 83, 7, 51, 0, 8, 118, 0, 8, 54, 0, 9, 204, 81, 7, 15, 0, 8, 102, 0, 8, 38, 0, 9, 172, 0, 8, 6, 0, 8, 134, 0, | |
8, 70, 0, 9, 236, 80, 7, 9, 0, 8, 94, 0, 8, 30, 0, 9, 156, 84, 7, 99, 0, 8, 126, 0, 8, 62, 0, 9, 220, 82, 7, 27, 0, 8, 110, 0, 8, 46, 0, 9, 188, 0, | |
8, 14, 0, 8, 142, 0, 8, 78, 0, 9, 252, 96, 7, 256, 0, 8, 81, 0, 8, 17, 85, 8, 131, 82, 7, 31, 0, 8, 113, 0, 8, 49, 0, 9, 194, 80, 7, 10, 0, 8, 97, | |
0, 8, 33, 0, 9, 162, 0, 8, 1, 0, 8, 129, 0, 8, 65, 0, 9, 226, 80, 7, 6, 0, 8, 89, 0, 8, 25, 0, 9, 146, 83, 7, 59, 0, 8, 121, 0, 8, 57, 0, 9, 210, | |
81, 7, 17, 0, 8, 105, 0, 8, 41, 0, 9, 178, 0, 8, 9, 0, 8, 137, 0, 8, 73, 0, 9, 242, 80, 7, 4, 0, 8, 85, 0, 8, 21, 80, 8, 258, 83, 7, 43, 0, 8, 117, | |
0, 8, 53, 0, 9, 202, 81, 7, 13, 0, 8, 101, 0, 8, 37, 0, 9, 170, 0, 8, 5, 0, 8, 133, 0, 8, 69, 0, 9, 234, 80, 7, 8, 0, 8, 93, 0, 8, 29, 0, 9, 154, | |
84, 7, 83, 0, 8, 125, 0, 8, 61, 0, 9, 218, 82, 7, 23, 0, 8, 109, 0, 8, 45, 0, 9, 186, 0, 8, 13, 0, 8, 141, 0, 8, 77, 0, 9, 250, 80, 7, 3, 0, 8, 83, | |
0, 8, 19, 85, 8, 195, 83, 7, 35, 0, 8, 115, 0, 8, 51, 0, 9, 198, 81, 7, 11, 0, 8, 99, 0, 8, 35, 0, 9, 166, 0, 8, 3, 0, 8, 131, 0, 8, 67, 0, 9, 230, | |
80, 7, 7, 0, 8, 91, 0, 8, 27, 0, 9, 150, 84, 7, 67, 0, 8, 123, 0, 8, 59, 0, 9, 214, 82, 7, 19, 0, 8, 107, 0, 8, 43, 0, 9, 182, 0, 8, 11, 0, 8, 139, | |
0, 8, 75, 0, 9, 246, 80, 7, 5, 0, 8, 87, 0, 8, 23, 192, 8, 0, 83, 7, 51, 0, 8, 119, 0, 8, 55, 0, 9, 206, 81, 7, 15, 0, 8, 103, 0, 8, 39, 0, 9, 174, | |
0, 8, 7, 0, 8, 135, 0, 8, 71, 0, 9, 238, 80, 7, 9, 0, 8, 95, 0, 8, 31, 0, 9, 158, 84, 7, 99, 0, 8, 127, 0, 8, 63, 0, 9, 222, 82, 7, 27, 0, 8, 111, | |
0, 8, 47, 0, 9, 190, 0, 8, 15, 0, 8, 143, 0, 8, 79, 0, 9, 254, 96, 7, 256, 0, 8, 80, 0, 8, 16, 84, 8, 115, 82, 7, 31, 0, 8, 112, 0, 8, 48, 0, 9, | |
193, 80, 7, 10, 0, 8, 96, 0, 8, 32, 0, 9, 161, 0, 8, 0, 0, 8, 128, 0, 8, 64, 0, 9, 225, 80, 7, 6, 0, 8, 88, 0, 8, 24, 0, 9, 145, 83, 7, 59, 0, 8, | |
120, 0, 8, 56, 0, 9, 209, 81, 7, 17, 0, 8, 104, 0, 8, 40, 0, 9, 177, 0, 8, 8, 0, 8, 136, 0, 8, 72, 0, 9, 241, 80, 7, 4, 0, 8, 84, 0, 8, 20, 85, 8, | |
227, 83, 7, 43, 0, 8, 116, 0, 8, 52, 0, 9, 201, 81, 7, 13, 0, 8, 100, 0, 8, 36, 0, 9, 169, 0, 8, 4, 0, 8, 132, 0, 8, 68, 0, 9, 233, 80, 7, 8, 0, 8, | |
92, 0, 8, 28, 0, 9, 153, 84, 7, 83, 0, 8, 124, 0, 8, 60, 0, 9, 217, 82, 7, 23, 0, 8, 108, 0, 8, 44, 0, 9, 185, 0, 8, 12, 0, 8, 140, 0, 8, 76, 0, 9, | |
249, 80, 7, 3, 0, 8, 82, 0, 8, 18, 85, 8, 163, 83, 7, 35, 0, 8, 114, 0, 8, 50, 0, 9, 197, 81, 7, 11, 0, 8, 98, 0, 8, 34, 0, 9, 165, 0, 8, 2, 0, 8, | |
130, 0, 8, 66, 0, 9, 229, 80, 7, 7, 0, 8, 90, 0, 8, 26, 0, 9, 149, 84, 7, 67, 0, 8, 122, 0, 8, 58, 0, 9, 213, 82, 7, 19, 0, 8, 106, 0, 8, 42, 0, 9, | |
181, 0, 8, 10, 0, 8, 138, 0, 8, 74, 0, 9, 245, 80, 7, 5, 0, 8, 86, 0, 8, 22, 192, 8, 0, 83, 7, 51, 0, 8, 118, 0, 8, 54, 0, 9, 205, 81, 7, 15, 0, 8, | |
102, 0, 8, 38, 0, 9, 173, 0, 8, 6, 0, 8, 134, 0, 8, 70, 0, 9, 237, 80, 7, 9, 0, 8, 94, 0, 8, 30, 0, 9, 157, 84, 7, 99, 0, 8, 126, 0, 8, 62, 0, 9, | |
221, 82, 7, 27, 0, 8, 110, 0, 8, 46, 0, 9, 189, 0, 8, 14, 0, 8, 142, 0, 8, 78, 0, 9, 253, 96, 7, 256, 0, 8, 81, 0, 8, 17, 85, 8, 131, 82, 7, 31, 0, | |
8, 113, 0, 8, 49, 0, 9, 195, 80, 7, 10, 0, 8, 97, 0, 8, 33, 0, 9, 163, 0, 8, 1, 0, 8, 129, 0, 8, 65, 0, 9, 227, 80, 7, 6, 0, 8, 89, 0, 8, 25, 0, 9, | |
147, 83, 7, 59, 0, 8, 121, 0, 8, 57, 0, 9, 211, 81, 7, 17, 0, 8, 105, 0, 8, 41, 0, 9, 179, 0, 8, 9, 0, 8, 137, 0, 8, 73, 0, 9, 243, 80, 7, 4, 0, 8, | |
85, 0, 8, 21, 80, 8, 258, 83, 7, 43, 0, 8, 117, 0, 8, 53, 0, 9, 203, 81, 7, 13, 0, 8, 101, 0, 8, 37, 0, 9, 171, 0, 8, 5, 0, 8, 133, 0, 8, 69, 0, 9, | |
235, 80, 7, 8, 0, 8, 93, 0, 8, 29, 0, 9, 155, 84, 7, 83, 0, 8, 125, 0, 8, 61, 0, 9, 219, 82, 7, 23, 0, 8, 109, 0, 8, 45, 0, 9, 187, 0, 8, 13, 0, 8, | |
141, 0, 8, 77, 0, 9, 251, 80, 7, 3, 0, 8, 83, 0, 8, 19, 85, 8, 195, 83, 7, 35, 0, 8, 115, 0, 8, 51, 0, 9, 199, 81, 7, 11, 0, 8, 99, 0, 8, 35, 0, 9, | |
167, 0, 8, 3, 0, 8, 131, 0, 8, 67, 0, 9, 231, 80, 7, 7, 0, 8, 91, 0, 8, 27, 0, 9, 151, 84, 7, 67, 0, 8, 123, 0, 8, 59, 0, 9, 215, 82, 7, 19, 0, 8, | |
107, 0, 8, 43, 0, 9, 183, 0, 8, 11, 0, 8, 139, 0, 8, 75, 0, 9, 247, 80, 7, 5, 0, 8, 87, 0, 8, 23, 192, 8, 0, 83, 7, 51, 0, 8, 119, 0, 8, 55, 0, 9, | |
207, 81, 7, 15, 0, 8, 103, 0, 8, 39, 0, 9, 175, 0, 8, 7, 0, 8, 135, 0, 8, 71, 0, 9, 239, 80, 7, 9, 0, 8, 95, 0, 8, 31, 0, 9, 159, 84, 7, 99, 0, 8, | |
127, 0, 8, 63, 0, 9, 223, 82, 7, 27, 0, 8, 111, 0, 8, 47, 0, 9, 191, 0, 8, 15, 0, 8, 143, 0, 8, 79, 0, 9, 255 ]; | |
var fixed_td = [ 80, 5, 1, 87, 5, 257, 83, 5, 17, 91, 5, 4097, 81, 5, 5, 89, 5, 1025, 85, 5, 65, 93, 5, 16385, 80, 5, 3, 88, 5, 513, 84, 5, 33, 92, 5, | |
8193, 82, 5, 9, 90, 5, 2049, 86, 5, 129, 192, 5, 24577, 80, 5, 2, 87, 5, 385, 83, 5, 25, 91, 5, 6145, 81, 5, 7, 89, 5, 1537, 85, 5, 97, 93, 5, | |
24577, 80, 5, 4, 88, 5, 769, 84, 5, 49, 92, 5, 12289, 82, 5, 13, 90, 5, 3073, 86, 5, 193, 192, 5, 24577 ]; | |
// Tables for deflate from PKZIP's appnote.txt. | |
var cplens = [ // Copy lengths for literal codes 257..285 | |
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 ]; | |
// see note #13 above about 258 | |
var cplext = [ // Extra bits for literal codes 257..285 | |
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, 112, 112 // 112==invalid | |
]; | |
var cpdist = [ // Copy offsets for distance codes 0..29 | |
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 ]; | |
var cpdext = [ // Extra bits for distance codes | |
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 ]; | |
// If BMAX needs to be larger than 16, then h and x[] should be uLong. | |
var BMAX = 15; // maximum bit length of any code | |
function InfTree() { | |
var that = this; | |
var hn; // hufts used in space | |
var v; // work area for huft_build | |
var c; // bit length count table | |
var r; // table entry for structure assignment | |
var u; // table stack | |
var x; // bit offsets, then code stack | |
function huft_build(b, // code lengths in bits (all assumed <= | |
// BMAX) | |
bindex, n, // number of codes (assumed <= 288) | |
s, // number of simple-valued codes (0..s-1) | |
d, // list of base values for non-simple codes | |
e, // list of extra bits for non-simple codes | |
t, // result: starting table | |
m, // maximum lookup bits, returns actual | |
hp,// space for trees | |
hn,// hufts used in space | |
v // working area: values in order of bit length | |
) { | |
// Given a list of code lengths and a maximum table size, make a set of | |
// tables to decode that set of codes. Return Z_OK on success, | |
// Z_BUF_ERROR | |
// if the given code set is incomplete (the tables are still built in | |
// this | |
// case), Z_DATA_ERROR if the input is invalid (an over-subscribed set | |
// of | |
// lengths), or Z_MEM_ERROR if not enough memory. | |
var a; // counter for codes of length k | |
var f; // i repeats in table every f entries | |
var g; // maximum code length | |
var h; // table level | |
var i; // counter, current code | |
var j; // counter | |
var k; // number of bits in current code | |
var l; // bits per table (returned in m) | |
var mask; // (1 << w) - 1, to avoid cc -O bug on HP | |
var p; // pointer into c[], b[], or v[] | |
var q; // points to current table | |
var w; // bits before this table == (l * h) | |
var xp; // pointer into x | |
var y; // number of dummy codes added | |
var z; // number of entries in current table | |
// Generate counts for each bit length | |
p = 0; | |
i = n; | |
do { | |
c[b[bindex + p]]++; | |
p++; | |
i--; // assume all entries <= BMAX | |
} while (i !== 0); | |
if (c[0] == n) { // null input--all zero length codes | |
t[0] = -1; | |
m[0] = 0; | |
return Z_OK; | |
} | |
// Find minimum and maximum length, bound *m by those | |
l = m[0]; | |
for (j = 1; j <= BMAX; j++) | |
if (c[j] !== 0) | |
break; | |
k = j; // minimum code length | |
if (l < j) { | |
l = j; | |
} | |
for (i = BMAX; i !== 0; i--) { | |
if (c[i] !== 0) | |
break; | |
} | |
g = i; // maximum code length | |
if (l > i) { | |
l = i; | |
} | |
m[0] = l; | |
// Adjust last length count to fill out codes, if needed | |
for (y = 1 << j; j < i; j++, y <<= 1) { | |
if ((y -= c[j]) < 0) { | |
return Z_DATA_ERROR; | |
} | |
} | |
if ((y -= c[i]) < 0) { | |
return Z_DATA_ERROR; | |
} | |
c[i] += y; | |
// Generate starting offsets into the value table for each length | |
x[1] = j = 0; | |
p = 1; | |
xp = 2; | |
while (--i !== 0) { // note that i == g from above | |
x[xp] = (j += c[p]); | |
xp++; | |
p++; | |
} | |
// Make a table of values in order of bit lengths | |
i = 0; | |
p = 0; | |
do { | |
if ((j = b[bindex + p]) !== 0) { | |
v[x[j]++] = i; | |
} | |
p++; | |
} while (++i < n); | |
n = x[g]; // set n to length of v | |
// Generate the Huffman codes and for each, make the table entries | |
x[0] = i = 0; // first Huffman code is zero | |
p = 0; // grab values in bit order | |
h = -1; // no tables yet--level -1 | |
w = -l; // bits decoded == (l * h) | |
u[0] = 0; // just to keep compilers happy | |
q = 0; // ditto | |
z = 0; // ditto | |
// go through the bit lengths (k already is bits in shortest code) | |
for (; k <= g; k++) { | |
a = c[k]; | |
while (a-- !== 0) { | |
// here i is the Huffman code of length k bits for value *p | |
// make tables up to required level | |
while (k > w + l) { | |
h++; | |
w += l; // previous table always l bits | |
// compute minimum size table less than or equal to l bits | |
z = g - w; | |
z = (z > l) ? l : z; // table size upper limit | |
if ((f = 1 << (j = k - w)) > a + 1) { // try a k-w bit table | |
// too few codes for | |
// k-w bit table | |
f -= a + 1; // deduct codes from patterns left | |
xp = k; | |
if (j < z) { | |
while (++j < z) { // try smaller tables up to z bits | |
if ((f <<= 1) <= c[++xp]) | |
break; // enough codes to use up j bits | |
f -= c[xp]; // else deduct codes from patterns | |
} | |
} | |
} | |
z = 1 << j; // table entries for j-bit table | |
// allocate new table | |
if (hn[0] + z > MANY) { // (note: doesn't matter for fixed) | |
return Z_DATA_ERROR; // overflow of MANY | |
} | |
u[h] = q = /* hp+ */hn[0]; // DEBUG | |
hn[0] += z; | |
// connect to last table, if there is one | |
if (h !== 0) { | |
x[h] = i; // save pattern for backing up | |
r[0] = /* (byte) */j; // bits in this table | |
r[1] = /* (byte) */l; // bits to dump before this table | |
j = i >>> (w - l); | |
r[2] = /* (int) */(q - u[h - 1] - j); // offset to this table | |
hp.set(r, (u[h - 1] + j) * 3); | |
// to | |
// last | |
// table | |
} else { | |
t[0] = q; // first table is returned result | |
} | |
} | |
// set up table entry in r | |
r[1] = /* (byte) */(k - w); | |
if (p >= n) { | |
r[0] = 128 + 64; // out of values--invalid code | |
} else if (v[p] < s) { | |
r[0] = /* (byte) */(v[p] < 256 ? 0 : 32 + 64); // 256 is | |
// end-of-block | |
r[2] = v[p++]; // simple code is just the value | |
} else { | |
r[0] = /* (byte) */(e[v[p] - s] + 16 + 64); // non-simple--look | |
// up in lists | |
r[2] = d[v[p++] - s]; | |
} | |
// fill code-like entries with r | |
f = 1 << (k - w); | |
for (j = i >>> w; j < z; j += f) { | |
hp.set(r, (q + j) * 3); | |
} | |
// backwards increment the k-bit code i | |
for (j = 1 << (k - 1); (i & j) !== 0; j >>>= 1) { | |
i ^= j; | |
} | |
i ^= j; | |
// backup over finished tables | |
mask = (1 << w) - 1; // needed on HP, cc -O bug | |
while ((i & mask) != x[h]) { | |
h--; // don't need to update q | |
w -= l; | |
mask = (1 << w) - 1; | |
} | |
} | |
} | |
// Return Z_BUF_ERROR if we were given an incomplete table | |
return y !== 0 && g != 1 ? Z_BUF_ERROR : Z_OK; | |
} | |
function initWorkArea(vsize) { | |
var i; | |
if (!hn) { | |
hn = []; // []; //new Array(1); | |
v = []; // new Array(vsize); | |
c = new Int32Array(BMAX + 1); // new Array(BMAX + 1); | |
r = []; // new Array(3); | |
u = new Int32Array(BMAX); // new Array(BMAX); | |
x = new Int32Array(BMAX + 1); // new Array(BMAX + 1); | |
} | |
if (v.length < vsize) { | |
v = []; // new Array(vsize); | |
} | |
for (i = 0; i < vsize; i++) { | |
v[i] = 0; | |
} | |
for (i = 0; i < BMAX + 1; i++) { | |
c[i] = 0; | |
} | |
for (i = 0; i < 3; i++) { | |
r[i] = 0; | |
} | |
// for(int i=0; i<BMAX; i++){u[i]=0;} | |
u.set(c.subarray(0, BMAX), 0); | |
// for(int i=0; i<BMAX+1; i++){x[i]=0;} | |
x.set(c.subarray(0, BMAX + 1), 0); | |
} | |
that.inflate_trees_bits = function(c, // 19 code lengths | |
bb, // bits tree desired/actual depth | |
tb, // bits tree result | |
hp, // space for trees | |
z // for messages | |
) { | |
var result; | |
initWorkArea(19); | |
hn[0] = 0; | |
result = huft_build(c, 0, 19, 19, null, null, tb, bb, hp, hn, v); | |
if (result == Z_DATA_ERROR) { | |
z.msg = "oversubscribed dynamic bit lengths tree"; | |
} else if (result == Z_BUF_ERROR || bb[0] === 0) { | |
z.msg = "incomplete dynamic bit lengths tree"; | |
result = Z_DATA_ERROR; | |
} | |
return result; | |
}; | |
that.inflate_trees_dynamic = function(nl, // number of literal/length codes | |
nd, // number of distance codes | |
c, // that many (total) code lengths | |
bl, // literal desired/actual bit depth | |
bd, // distance desired/actual bit depth | |
tl, // literal/length tree result | |
td, // distance tree result | |
hp, // space for trees | |
z // for messages | |
) { | |
var result; | |
// build literal/length tree | |
initWorkArea(288); | |
hn[0] = 0; | |
result = huft_build(c, 0, nl, 257, cplens, cplext, tl, bl, hp, hn, v); | |
if (result != Z_OK || bl[0] === 0) { | |
if (result == Z_DATA_ERROR) { | |
z.msg = "oversubscribed literal/length tree"; | |
} else if (result != Z_MEM_ERROR) { | |
z.msg = "incomplete literal/length tree"; | |
result = Z_DATA_ERROR; | |
} | |
return result; | |
} | |
// build distance tree | |
initWorkArea(288); | |
result = huft_build(c, nl, nd, 0, cpdist, cpdext, td, bd, hp, hn, v); | |
if (result != Z_OK || (bd[0] === 0 && nl > 257)) { | |
if (result == Z_DATA_ERROR) { | |
z.msg = "oversubscribed distance tree"; | |
} else if (result == Z_BUF_ERROR) { | |
z.msg = "incomplete distance tree"; | |
result = Z_DATA_ERROR; | |
} else if (result != Z_MEM_ERROR) { | |
z.msg = "empty distance tree with lengths"; | |
result = Z_DATA_ERROR; | |
} | |
return result; | |
} | |
return Z_OK; | |
}; | |
} | |
InfTree.inflate_trees_fixed = function(bl, // literal desired/actual bit depth | |
bd, // distance desired/actual bit depth | |
tl,// literal/length tree result | |
td// distance tree result | |
) { | |
bl[0] = fixed_bl; | |
bd[0] = fixed_bd; | |
tl[0] = fixed_tl; | |
td[0] = fixed_td; | |
return Z_OK; | |
}; | |
// InfCodes | |
// waiting for "i:"=input, | |
// "o:"=output, | |
// "x:"=nothing | |
var START = 0; // x: set up for LEN | |
var LEN = 1; // i: get length/literal/eob next | |
var LENEXT = 2; // i: getting length extra (have base) | |
var DIST = 3; // i: get distance next | |
var DISTEXT = 4;// i: getting distance extra | |
var COPY = 5; // o: copying bytes in window, waiting | |
// for space | |
var LIT = 6; // o: got literal, waiting for output | |
// space | |
var WASH = 7; // o: got eob, possibly still output | |
// waiting | |
var END = 8; // x: got eob and all data flushed | |
var BADCODE = 9;// x: got error | |
function InfCodes() { | |
var that = this; | |
var mode; // current inflate_codes mode | |
// mode dependent information | |
var len = 0; | |
var tree; // pointer into tree | |
var tree_index = 0; | |
var need = 0; // bits needed | |
var lit = 0; | |
// if EXT or COPY, where and how much | |
var get = 0; // bits to get for extra | |
var dist = 0; // distance back to copy from | |
var lbits = 0; // ltree bits decoded per branch | |
var dbits = 0; // dtree bits decoder per branch | |
var ltree; // literal/length/eob tree | |
var ltree_index = 0; // literal/length/eob tree | |
var dtree; // distance tree | |
var dtree_index = 0; // distance tree | |
// Called with number of bytes left to write in window at least 258 | |
// (the maximum string length) and number of input bytes available | |
// at least ten. The ten bytes are six bytes for the longest length/ | |
// distance pair plus four bytes for overloading the bit buffer. | |
function inflate_fast(bl, bd, tl, tl_index, td, td_index, s, z) { | |
var t; // temporary pointer | |
var tp; // temporary pointer | |
var tp_index; // temporary pointer | |
var e; // extra bits or operation | |
var b; // bit buffer | |
var k; // bits in bit buffer | |
var p; // input data pointer | |
var n; // bytes available there | |
var q; // output window write pointer | |
var m; // bytes to end of window or read pointer | |
var ml; // mask for literal/length tree | |
var md; // mask for distance tree | |
var c; // bytes to copy | |
var d; // distance back to copy from | |
var r; // copy source pointer | |
var tp_index_t_3; // (tp_index+t)*3 | |
// load input, output, bit values | |
p = z.next_in_index; | |
n = z.avail_in; | |
b = s.bitb; | |
k = s.bitk; | |
q = s.write; | |
m = q < s.read ? s.read - q - 1 : s.end - q; | |
// initialize masks | |
ml = inflate_mask[bl]; | |
md = inflate_mask[bd]; | |
// do until not enough input or output space for fast loop | |
do { // assume called with m >= 258 && n >= 10 | |
// get literal/length code | |
while (k < (20)) { // max bits for literal/length code | |
n--; | |
b |= (z.read_byte(p++) & 0xff) << k; | |
k += 8; | |
} | |
t = b & ml; | |
tp = tl; | |
tp_index = tl_index; | |
tp_index_t_3 = (tp_index + t) * 3; | |
if ((e = tp[tp_index_t_3]) === 0) { | |
b >>= (tp[tp_index_t_3 + 1]); | |
k -= (tp[tp_index_t_3 + 1]); | |
s.window[q++] = /* (byte) */tp[tp_index_t_3 + 2]; | |
m--; | |
continue; | |
} | |
do { | |
b >>= (tp[tp_index_t_3 + 1]); | |
k -= (tp[tp_index_t_3 + 1]); | |
if ((e & 16) !== 0) { | |
e &= 15; | |
c = tp[tp_index_t_3 + 2] + (/* (int) */b & inflate_mask[e]); | |
b >>= e; | |
k -= e; | |
// decode distance base of block to copy | |
while (k < (15)) { // max bits for distance code | |
n--; | |
b |= (z.read_byte(p++) & 0xff) << k; | |
k += 8; | |
} | |
t = b & md; | |
tp = td; | |
tp_index = td_index; | |
tp_index_t_3 = (tp_index + t) * 3; | |
e = tp[tp_index_t_3]; | |
do { | |
b >>= (tp[tp_index_t_3 + 1]); | |
k -= (tp[tp_index_t_3 + 1]); | |
if ((e & 16) !== 0) { | |
// get extra bits to add to distance base | |
e &= 15; | |
while (k < (e)) { // get extra bits (up to 13) | |
n--; | |
b |= (z.read_byte(p++) & 0xff) << k; | |
k += 8; | |
} | |
d = tp[tp_index_t_3 + 2] + (b & inflate_mask[e]); | |
b >>= (e); | |
k -= (e); | |
// do the copy | |
m -= c; | |
if (q >= d) { // offset before dest | |
// just copy | |
r = q - d; | |
if (q - r > 0 && 2 > (q - r)) { | |
s.window[q++] = s.window[r++]; // minimum | |
// count is | |
// three, | |
s.window[q++] = s.window[r++]; // so unroll | |
// loop a | |
// little | |
c -= 2; | |
} else { | |
s.window.set(s.window.subarray(r, r + 2), q); | |
q += 2; | |
r += 2; | |
c -= 2; | |
} | |
} else { // else offset after destination | |
r = q - d; | |
do { | |
r += s.end; // force pointer in window | |
} while (r < 0); // covers invalid distances | |
e = s.end - r; | |
if (c > e) { // if source crosses, | |
c -= e; // wrapped copy | |
if (q - r > 0 && e > (q - r)) { | |
do { | |
s.window[q++] = s.window[r++]; | |
} while (--e !== 0); | |
} else { | |
s.window.set(s.window.subarray(r, r + e), q); | |
q += e; | |
r += e; | |
e = 0; | |
} | |
r = 0; // copy rest from start of window | |
} | |
} | |
// copy all or what's left | |
if (q - r > 0 && c > (q - r)) { | |
do { | |
s.window[q++] = s.window[r++]; | |
} while (--c !== 0); | |
} else { | |
s.window.set(s.window.subarray(r, r + c), q); | |
q += c; | |
r += c; | |
c = 0; | |
} | |
break; | |
} else if ((e & 64) === 0) { | |
t += tp[tp_index_t_3 + 2]; | |
t += (b & inflate_mask[e]); | |
tp_index_t_3 = (tp_index + t) * 3; | |
e = tp[tp_index_t_3]; | |
} else { | |
z.msg = "invalid distance code"; | |
c = z.avail_in - n; | |
c = (k >> 3) < c ? k >> 3 : c; | |
n += c; | |
p -= c; | |
k -= c << 3; | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return Z_DATA_ERROR; | |
} | |
} while (true); | |
break; | |
} | |
if ((e & 64) === 0) { | |
t += tp[tp_index_t_3 + 2]; | |
t += (b & inflate_mask[e]); | |
tp_index_t_3 = (tp_index + t) * 3; | |
if ((e = tp[tp_index_t_3]) === 0) { | |
b >>= (tp[tp_index_t_3 + 1]); | |
k -= (tp[tp_index_t_3 + 1]); | |
s.window[q++] = /* (byte) */tp[tp_index_t_3 + 2]; | |
m--; | |
break; | |
} | |
} else if ((e & 32) !== 0) { | |
c = z.avail_in - n; | |
c = (k >> 3) < c ? k >> 3 : c; | |
n += c; | |
p -= c; | |
k -= c << 3; | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return Z_STREAM_END; | |
} else { | |
z.msg = "invalid literal/length code"; | |
c = z.avail_in - n; | |
c = (k >> 3) < c ? k >> 3 : c; | |
n += c; | |
p -= c; | |
k -= c << 3; | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return Z_DATA_ERROR; | |
} | |
} while (true); | |
} while (m >= 258 && n >= 10); | |
// not enough input or output--restore pointers and return | |
c = z.avail_in - n; | |
c = (k >> 3) < c ? k >> 3 : c; | |
n += c; | |
p -= c; | |
k -= c << 3; | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return Z_OK; | |
} | |
that.init = function(bl, bd, tl, tl_index, td, td_index) { | |
mode = START; | |
lbits = /* (byte) */bl; | |
dbits = /* (byte) */bd; | |
ltree = tl; | |
ltree_index = tl_index; | |
dtree = td; | |
dtree_index = td_index; | |
tree = null; | |
}; | |
that.proc = function(s, z, r) { | |
var j; // temporary storage | |
var tindex; // temporary pointer | |
var e; // extra bits or operation | |
var b = 0; // bit buffer | |
var k = 0; // bits in bit buffer | |
var p = 0; // input data pointer | |
var n; // bytes available there | |
var q; // output window write pointer | |
var m; // bytes to end of window or read pointer | |
var f; // pointer to copy strings from | |
// copy input/output information to locals (UPDATE macro restores) | |
p = z.next_in_index; | |
n = z.avail_in; | |
b = s.bitb; | |
k = s.bitk; | |
q = s.write; | |
m = q < s.read ? s.read - q - 1 : s.end - q; | |
// process input and output based on current state | |
while (true) { | |
switch (mode) { | |
// waiting for "i:"=input, "o:"=output, "x:"=nothing | |
case START: // x: set up for LEN | |
if (m >= 258 && n >= 10) { | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
r = inflate_fast(lbits, dbits, ltree, ltree_index, dtree, dtree_index, s, z); | |
p = z.next_in_index; | |
n = z.avail_in; | |
b = s.bitb; | |
k = s.bitk; | |
q = s.write; | |
m = q < s.read ? s.read - q - 1 : s.end - q; | |
if (r != Z_OK) { | |
mode = r == Z_STREAM_END ? WASH : BADCODE; | |
break; | |
} | |
} | |
need = lbits; | |
tree = ltree; | |
tree_index = ltree_index; | |
mode = LEN; | |
/* falls through */ | |
case LEN: // i: get length/literal/eob next | |
j = need; | |
while (k < (j)) { | |
if (n !== 0) | |
r = Z_OK; | |
else { | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return s.inflate_flush(z, r); | |
} | |
n--; | |
b |= (z.read_byte(p++) & 0xff) << k; | |
k += 8; | |
} | |
tindex = (tree_index + (b & inflate_mask[j])) * 3; | |
b >>>= (tree[tindex + 1]); | |
k -= (tree[tindex + 1]); | |
e = tree[tindex]; | |
if (e === 0) { // literal | |
lit = tree[tindex + 2]; | |
mode = LIT; | |
break; | |
} | |
if ((e & 16) !== 0) { // length | |
get = e & 15; | |
len = tree[tindex + 2]; | |
mode = LENEXT; | |
break; | |
} | |
if ((e & 64) === 0) { // next table | |
need = e; | |
tree_index = tindex / 3 + tree[tindex + 2]; | |
break; | |
} | |
if ((e & 32) !== 0) { // end of block | |
mode = WASH; | |
break; | |
} | |
mode = BADCODE; // invalid code | |
z.msg = "invalid literal/length code"; | |
r = Z_DATA_ERROR; | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return s.inflate_flush(z, r); | |
case LENEXT: // i: getting length extra (have base) | |
j = get; | |
while (k < (j)) { | |
if (n !== 0) | |
r = Z_OK; | |
else { | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return s.inflate_flush(z, r); | |
} | |
n--; | |
b |= (z.read_byte(p++) & 0xff) << k; | |
k += 8; | |
} | |
len += (b & inflate_mask[j]); | |
b >>= j; | |
k -= j; | |
need = dbits; | |
tree = dtree; | |
tree_index = dtree_index; | |
mode = DIST; | |
/* falls through */ | |
case DIST: // i: get distance next | |
j = need; | |
while (k < (j)) { | |
if (n !== 0) | |
r = Z_OK; | |
else { | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return s.inflate_flush(z, r); | |
} | |
n--; | |
b |= (z.read_byte(p++) & 0xff) << k; | |
k += 8; | |
} | |
tindex = (tree_index + (b & inflate_mask[j])) * 3; | |
b >>= tree[tindex + 1]; | |
k -= tree[tindex + 1]; | |
e = (tree[tindex]); | |
if ((e & 16) !== 0) { // distance | |
get = e & 15; | |
dist = tree[tindex + 2]; | |
mode = DISTEXT; | |
break; | |
} | |
if ((e & 64) === 0) { // next table | |
need = e; | |
tree_index = tindex / 3 + tree[tindex + 2]; | |
break; | |
} | |
mode = BADCODE; // invalid code | |
z.msg = "invalid distance code"; | |
r = Z_DATA_ERROR; | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return s.inflate_flush(z, r); | |
case DISTEXT: // i: getting distance extra | |
j = get; | |
while (k < (j)) { | |
if (n !== 0) | |
r = Z_OK; | |
else { | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return s.inflate_flush(z, r); | |
} | |
n--; | |
b |= (z.read_byte(p++) & 0xff) << k; | |
k += 8; | |
} | |
dist += (b & inflate_mask[j]); | |
b >>= j; | |
k -= j; | |
mode = COPY; | |
/* falls through */ | |
case COPY: // o: copying bytes in window, waiting for space | |
f = q - dist; | |
while (f < 0) { // modulo window size-"while" instead | |
f += s.end; // of "if" handles invalid distances | |
} | |
while (len !== 0) { | |
if (m === 0) { | |
if (q == s.end && s.read !== 0) { | |
q = 0; | |
m = q < s.read ? s.read - q - 1 : s.end - q; | |
} | |
if (m === 0) { | |
s.write = q; | |
r = s.inflate_flush(z, r); | |
q = s.write; | |
m = q < s.read ? s.read - q - 1 : s.end - q; | |
if (q == s.end && s.read !== 0) { | |
q = 0; | |
m = q < s.read ? s.read - q - 1 : s.end - q; | |
} | |
if (m === 0) { | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return s.inflate_flush(z, r); | |
} | |
} | |
} | |
s.window[q++] = s.window[f++]; | |
m--; | |
if (f == s.end) | |
f = 0; | |
len--; | |
} | |
mode = START; | |
break; | |
case LIT: // o: got literal, waiting for output space | |
if (m === 0) { | |
if (q == s.end && s.read !== 0) { | |
q = 0; | |
m = q < s.read ? s.read - q - 1 : s.end - q; | |
} | |
if (m === 0) { | |
s.write = q; | |
r = s.inflate_flush(z, r); | |
q = s.write; | |
m = q < s.read ? s.read - q - 1 : s.end - q; | |
if (q == s.end && s.read !== 0) { | |
q = 0; | |
m = q < s.read ? s.read - q - 1 : s.end - q; | |
} | |
if (m === 0) { | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return s.inflate_flush(z, r); | |
} | |
} | |
} | |
r = Z_OK; | |
s.window[q++] = /* (byte) */lit; | |
m--; | |
mode = START; | |
break; | |
case WASH: // o: got eob, possibly more output | |
if (k > 7) { // return unused byte, if any | |
k -= 8; | |
n++; | |
p--; // can always return one | |
} | |
s.write = q; | |
r = s.inflate_flush(z, r); | |
q = s.write; | |
m = q < s.read ? s.read - q - 1 : s.end - q; | |
if (s.read != s.write) { | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return s.inflate_flush(z, r); | |
} | |
mode = END; | |
/* falls through */ | |
case END: | |
r = Z_STREAM_END; | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return s.inflate_flush(z, r); | |
case BADCODE: // x: got error | |
r = Z_DATA_ERROR; | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return s.inflate_flush(z, r); | |
default: | |
r = Z_STREAM_ERROR; | |
s.bitb = b; | |
s.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
s.write = q; | |
return s.inflate_flush(z, r); | |
} | |
} | |
}; | |
that.free = function() { | |
// ZFREE(z, c); | |
}; | |
} | |
// InfBlocks | |
// Table for deflate from PKZIP's appnote.txt. | |
var border = [ // Order of the bit length code lengths | |
16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 ]; | |
var TYPE = 0; // get type bits (3, including end bit) | |
var LENS = 1; // get lengths for stored | |
var STORED = 2;// processing stored block | |
var TABLE = 3; // get table lengths | |
var BTREE = 4; // get bit lengths tree for a dynamic | |
// block | |
var DTREE = 5; // get length, distance trees for a | |
// dynamic block | |
var CODES = 6; // processing fixed or dynamic block | |
var DRY = 7; // output remaining window bytes | |
var DONELOCKS = 8; // finished last block, done | |
var BADBLOCKS = 9; // ot a data error--stuck here | |
function InfBlocks(z, w) { | |
var that = this; | |
var mode = TYPE; // current inflate_block mode | |
var left = 0; // if STORED, bytes left to copy | |
var table = 0; // table lengths (14 bits) | |
var index = 0; // index into blens (or border) | |
var blens; // bit lengths of codes | |
var bb = [ 0 ]; // bit length tree depth | |
var tb = [ 0 ]; // bit length decoding tree | |
var codes = new InfCodes(); // if CODES, current state | |
var last = 0; // true if this block is the last block | |
var hufts = new Int32Array(MANY * 3); // single malloc for tree space | |
var check = 0; // check on output | |
var inftree = new InfTree(); | |
that.bitk = 0; // bits in bit buffer | |
that.bitb = 0; // bit buffer | |
that.window = new Uint8Array(w); // sliding window | |
that.end = w; // one byte after sliding window | |
that.read = 0; // window read pointer | |
that.write = 0; // window write pointer | |
that.reset = function(z, c) { | |
if (c) | |
c[0] = check; | |
// if (mode == BTREE || mode == DTREE) { | |
// } | |
if (mode == CODES) { | |
codes.free(z); | |
} | |
mode = TYPE; | |
that.bitk = 0; | |
that.bitb = 0; | |
that.read = that.write = 0; | |
}; | |
that.reset(z, null); | |
// copy as much as possible from the sliding window to the output area | |
that.inflate_flush = function(z, r) { | |
var n; | |
var p; | |
var q; | |
// local copies of source and destination pointers | |
p = z.next_out_index; | |
q = that.read; | |
// compute number of bytes to copy as far as end of window | |
n = /* (int) */((q <= that.write ? that.write : that.end) - q); | |
if (n > z.avail_out) | |
n = z.avail_out; | |
if (n !== 0 && r == Z_BUF_ERROR) | |
r = Z_OK; | |
// update counters | |
z.avail_out -= n; | |
z.total_out += n; | |
// copy as far as end of window | |
z.next_out.set(that.window.subarray(q, q + n), p); | |
p += n; | |
q += n; | |
// see if more to copy at beginning of window | |
if (q == that.end) { | |
// wrap pointers | |
q = 0; | |
if (that.write == that.end) | |
that.write = 0; | |
// compute bytes to copy | |
n = that.write - q; | |
if (n > z.avail_out) | |
n = z.avail_out; | |
if (n !== 0 && r == Z_BUF_ERROR) | |
r = Z_OK; | |
// update counters | |
z.avail_out -= n; | |
z.total_out += n; | |
// copy | |
z.next_out.set(that.window.subarray(q, q + n), p); | |
p += n; | |
q += n; | |
} | |
// update pointers | |
z.next_out_index = p; | |
that.read = q; | |
// done | |
return r; | |
}; | |
that.proc = function(z, r) { | |
var t; // temporary storage | |
var b; // bit buffer | |
var k; // bits in bit buffer | |
var p; // input data pointer | |
var n; // bytes available there | |
var q; // output window write pointer | |
var m; // bytes to end of window or read pointer | |
var i; | |
// copy input/output information to locals (UPDATE macro restores) | |
// { | |
p = z.next_in_index; | |
n = z.avail_in; | |
b = that.bitb; | |
k = that.bitk; | |
// } | |
// { | |
q = that.write; | |
m = /* (int) */(q < that.read ? that.read - q - 1 : that.end - q); | |
// } | |
// process input based on current state | |
// DEBUG dtree | |
while (true) { | |
switch (mode) { | |
case TYPE: | |
while (k < (3)) { | |
if (n !== 0) { | |
r = Z_OK; | |
} else { | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
n--; | |
b |= (z.read_byte(p++) & 0xff) << k; | |
k += 8; | |
} | |
t = /* (int) */(b & 7); | |
last = t & 1; | |
switch (t >>> 1) { | |
case 0: // stored | |
// { | |
b >>>= (3); | |
k -= (3); | |
// } | |
t = k & 7; // go to byte boundary | |
// { | |
b >>>= (t); | |
k -= (t); | |
// } | |
mode = LENS; // get length of stored block | |
break; | |
case 1: // fixed | |
// { | |
var bl = []; // new Array(1); | |
var bd = []; // new Array(1); | |
var tl = [ [] ]; // new Array(1); | |
var td = [ [] ]; // new Array(1); | |
InfTree.inflate_trees_fixed(bl, bd, tl, td); | |
codes.init(bl[0], bd[0], tl[0], 0, td[0], 0); | |
// } | |
// { | |
b >>>= (3); | |
k -= (3); | |
// } | |
mode = CODES; | |
break; | |
case 2: // dynamic | |
// { | |
b >>>= (3); | |
k -= (3); | |
// } | |
mode = TABLE; | |
break; | |
case 3: // illegal | |
// { | |
b >>>= (3); | |
k -= (3); | |
// } | |
mode = BADBLOCKS; | |
z.msg = "invalid block type"; | |
r = Z_DATA_ERROR; | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
break; | |
case LENS: | |
while (k < (32)) { | |
if (n !== 0) { | |
r = Z_OK; | |
} else { | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
n--; | |
b |= (z.read_byte(p++) & 0xff) << k; | |
k += 8; | |
} | |
if ((((~b) >>> 16) & 0xffff) != (b & 0xffff)) { | |
mode = BADBLOCKS; | |
z.msg = "invalid stored block lengths"; | |
r = Z_DATA_ERROR; | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
left = (b & 0xffff); | |
b = k = 0; // dump bits | |
mode = left !== 0 ? STORED : (last !== 0 ? DRY : TYPE); | |
break; | |
case STORED: | |
if (n === 0) { | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
if (m === 0) { | |
if (q == that.end && that.read !== 0) { | |
q = 0; | |
m = /* (int) */(q < that.read ? that.read - q - 1 : that.end - q); | |
} | |
if (m === 0) { | |
that.write = q; | |
r = that.inflate_flush(z, r); | |
q = that.write; | |
m = /* (int) */(q < that.read ? that.read - q - 1 : that.end - q); | |
if (q == that.end && that.read !== 0) { | |
q = 0; | |
m = /* (int) */(q < that.read ? that.read - q - 1 : that.end - q); | |
} | |
if (m === 0) { | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
} | |
} | |
r = Z_OK; | |
t = left; | |
if (t > n) | |
t = n; | |
if (t > m) | |
t = m; | |
that.window.set(z.read_buf(p, t), q); | |
p += t; | |
n -= t; | |
q += t; | |
m -= t; | |
if ((left -= t) !== 0) | |
break; | |
mode = last !== 0 ? DRY : TYPE; | |
break; | |
case TABLE: | |
while (k < (14)) { | |
if (n !== 0) { | |
r = Z_OK; | |
} else { | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
n--; | |
b |= (z.read_byte(p++) & 0xff) << k; | |
k += 8; | |
} | |
table = t = (b & 0x3fff); | |
if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29) { | |
mode = BADBLOCKS; | |
z.msg = "too many length or distance symbols"; | |
r = Z_DATA_ERROR; | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f); | |
if (!blens || blens.length < t) { | |
blens = []; // new Array(t); | |
} else { | |
for (i = 0; i < t; i++) { | |
blens[i] = 0; | |
} | |
} | |
// { | |
b >>>= (14); | |
k -= (14); | |
// } | |
index = 0; | |
mode = BTREE; | |
/* falls through */ | |
case BTREE: | |
while (index < 4 + (table >>> 10)) { | |
while (k < (3)) { | |
if (n !== 0) { | |
r = Z_OK; | |
} else { | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
n--; | |
b |= (z.read_byte(p++) & 0xff) << k; | |
k += 8; | |
} | |
blens[border[index++]] = b & 7; | |
// { | |
b >>>= (3); | |
k -= (3); | |
// } | |
} | |
while (index < 19) { | |
blens[border[index++]] = 0; | |
} | |
bb[0] = 7; | |
t = inftree.inflate_trees_bits(blens, bb, tb, hufts, z); | |
if (t != Z_OK) { | |
r = t; | |
if (r == Z_DATA_ERROR) { | |
blens = null; | |
mode = BADBLOCKS; | |
} | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
index = 0; | |
mode = DTREE; | |
/* falls through */ | |
case DTREE: | |
while (true) { | |
t = table; | |
if (!(index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f))) { | |
break; | |
} | |
var j, c; | |
t = bb[0]; | |
while (k < (t)) { | |
if (n !== 0) { | |
r = Z_OK; | |
} else { | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
n--; | |
b |= (z.read_byte(p++) & 0xff) << k; | |
k += 8; | |
} | |
// if (tb[0] == -1) { | |
// System.err.println("null..."); | |
// } | |
t = hufts[(tb[0] + (b & inflate_mask[t])) * 3 + 1]; | |
c = hufts[(tb[0] + (b & inflate_mask[t])) * 3 + 2]; | |
if (c < 16) { | |
b >>>= (t); | |
k -= (t); | |
blens[index++] = c; | |
} else { // c == 16..18 | |
i = c == 18 ? 7 : c - 14; | |
j = c == 18 ? 11 : 3; | |
while (k < (t + i)) { | |
if (n !== 0) { | |
r = Z_OK; | |
} else { | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
n--; | |
b |= (z.read_byte(p++) & 0xff) << k; | |
k += 8; | |
} | |
b >>>= (t); | |
k -= (t); | |
j += (b & inflate_mask[i]); | |
b >>>= (i); | |
k -= (i); | |
i = index; | |
t = table; | |
if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) || (c == 16 && i < 1)) { | |
blens = null; | |
mode = BADBLOCKS; | |
z.msg = "invalid bit length repeat"; | |
r = Z_DATA_ERROR; | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
c = c == 16 ? blens[i - 1] : 0; | |
do { | |
blens[i++] = c; | |
} while (--j !== 0); | |
index = i; | |
} | |
} | |
tb[0] = -1; | |
// { | |
var bl_ = []; // new Array(1); | |
var bd_ = []; // new Array(1); | |
var tl_ = []; // new Array(1); | |
var td_ = []; // new Array(1); | |
bl_[0] = 9; // must be <= 9 for lookahead assumptions | |
bd_[0] = 6; // must be <= 9 for lookahead assumptions | |
t = table; | |
t = inftree.inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f), blens, bl_, bd_, tl_, td_, hufts, z); | |
if (t != Z_OK) { | |
if (t == Z_DATA_ERROR) { | |
blens = null; | |
mode = BADBLOCKS; | |
} | |
r = t; | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
codes.init(bl_[0], bd_[0], hufts, tl_[0], hufts, td_[0]); | |
// } | |
mode = CODES; | |
/* falls through */ | |
case CODES: | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
if ((r = codes.proc(that, z, r)) != Z_STREAM_END) { | |
return that.inflate_flush(z, r); | |
} | |
r = Z_OK; | |
codes.free(z); | |
p = z.next_in_index; | |
n = z.avail_in; | |
b = that.bitb; | |
k = that.bitk; | |
q = that.write; | |
m = /* (int) */(q < that.read ? that.read - q - 1 : that.end - q); | |
if (last === 0) { | |
mode = TYPE; | |
break; | |
} | |
mode = DRY; | |
/* falls through */ | |
case DRY: | |
that.write = q; | |
r = that.inflate_flush(z, r); | |
q = that.write; | |
m = /* (int) */(q < that.read ? that.read - q - 1 : that.end - q); | |
if (that.read != that.write) { | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
mode = DONELOCKS; | |
/* falls through */ | |
case DONELOCKS: | |
r = Z_STREAM_END; | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
case BADBLOCKS: | |
r = Z_DATA_ERROR; | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
default: | |
r = Z_STREAM_ERROR; | |
that.bitb = b; | |
that.bitk = k; | |
z.avail_in = n; | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
that.write = q; | |
return that.inflate_flush(z, r); | |
} | |
} | |
}; | |
that.free = function(z) { | |
that.reset(z, null); | |
that.window = null; | |
hufts = null; | |
// ZFREE(z, s); | |
}; | |
that.set_dictionary = function(d, start, n) { | |
that.window.set(d.subarray(start, start + n), 0); | |
that.read = that.write = n; | |
}; | |
// Returns true if inflate is currently at the end of a block generated | |
// by Z_SYNC_FLUSH or Z_FULL_FLUSH. | |
that.sync_point = function() { | |
return mode == LENS ? 1 : 0; | |
}; | |
} | |
// Inflate | |
// preset dictionary flag in zlib header | |
var PRESET_DICT = 0x20; | |
var Z_DEFLATED = 8; | |
var METHOD = 0; // waiting for method byte | |
var FLAG = 1; // waiting for flag byte | |
var DICT4 = 2; // four dictionary check bytes to go | |
var DICT3 = 3; // three dictionary check bytes to go | |
var DICT2 = 4; // two dictionary check bytes to go | |
var DICT1 = 5; // one dictionary check byte to go | |
var DICT0 = 6; // waiting for inflateSetDictionary | |
var BLOCKS = 7; // decompressing blocks | |
var DONE = 12; // finished check, done | |
var BAD = 13; // got an error--stay here | |
var mark = [ 0, 0, 0xff, 0xff ]; | |
function Inflate() { | |
var that = this; | |
that.mode = 0; // current inflate mode | |
// mode dependent information | |
that.method = 0; // if FLAGS, method byte | |
// if CHECK, check values to compare | |
that.was = [ 0 ]; // new Array(1); // computed check value | |
that.need = 0; // stream check value | |
// if BAD, inflateSync's marker bytes count | |
that.marker = 0; | |
// mode independent information | |
that.wbits = 0; // log2(window size) (8..15, defaults to 15) | |
// this.blocks; // current inflate_blocks state | |
function inflateReset(z) { | |
if (!z || !z.istate) | |
return Z_STREAM_ERROR; | |
z.total_in = z.total_out = 0; | |
z.msg = null; | |
z.istate.mode = BLOCKS; | |
z.istate.blocks.reset(z, null); | |
return Z_OK; | |
} | |
that.inflateEnd = function(z) { | |
if (that.blocks) | |
that.blocks.free(z); | |
that.blocks = null; | |
// ZFREE(z, z->state); | |
return Z_OK; | |
}; | |
that.inflateInit = function(z, w) { | |
z.msg = null; | |
that.blocks = null; | |
// set window size | |
if (w < 8 || w > 15) { | |
that.inflateEnd(z); | |
return Z_STREAM_ERROR; | |
} | |
that.wbits = w; | |
z.istate.blocks = new InfBlocks(z, 1 << w); | |
// reset state | |
inflateReset(z); | |
return Z_OK; | |
}; | |
that.inflate = function(z, f) { | |
var r; | |
var b; | |
if (!z || !z.istate || !z.next_in) | |
return Z_STREAM_ERROR; | |
f = f == Z_FINISH ? Z_BUF_ERROR : Z_OK; | |
r = Z_BUF_ERROR; | |
while (true) { | |
// System.out.println("mode: "+z.istate.mode); | |
switch (z.istate.mode) { | |
case METHOD: | |
if (z.avail_in === 0) | |
return r; | |
r = f; | |
z.avail_in--; | |
z.total_in++; | |
if (((z.istate.method = z.read_byte(z.next_in_index++)) & 0xf) != Z_DEFLATED) { | |
z.istate.mode = BAD; | |
z.msg = "unknown compression method"; | |
z.istate.marker = 5; // can't try inflateSync | |
break; | |
} | |
if ((z.istate.method >> 4) + 8 > z.istate.wbits) { | |
z.istate.mode = BAD; | |
z.msg = "invalid window size"; | |
z.istate.marker = 5; // can't try inflateSync | |
break; | |
} | |
z.istate.mode = FLAG; | |
/* falls through */ | |
case FLAG: | |
if (z.avail_in === 0) | |
return r; | |
r = f; | |
z.avail_in--; | |
z.total_in++; | |
b = (z.read_byte(z.next_in_index++)) & 0xff; | |
if ((((z.istate.method << 8) + b) % 31) !== 0) { | |
z.istate.mode = BAD; | |
z.msg = "incorrect header check"; | |
z.istate.marker = 5; // can't try inflateSync | |
break; | |
} | |
if ((b & PRESET_DICT) === 0) { | |
z.istate.mode = BLOCKS; | |
break; | |
} | |
z.istate.mode = DICT4; | |
/* falls through */ | |
case DICT4: | |
if (z.avail_in === 0) | |
return r; | |
r = f; | |
z.avail_in--; | |
z.total_in++; | |
z.istate.need = ((z.read_byte(z.next_in_index++) & 0xff) << 24) & 0xff000000; | |
z.istate.mode = DICT3; | |
/* falls through */ | |
case DICT3: | |
if (z.avail_in === 0) | |
return r; | |
r = f; | |
z.avail_in--; | |
z.total_in++; | |
z.istate.need += ((z.read_byte(z.next_in_index++) & 0xff) << 16) & 0xff0000; | |
z.istate.mode = DICT2; | |
/* falls through */ | |
case DICT2: | |
if (z.avail_in === 0) | |
return r; | |
r = f; | |
z.avail_in--; | |
z.total_in++; | |
z.istate.need += ((z.read_byte(z.next_in_index++) & 0xff) << 8) & 0xff00; | |
z.istate.mode = DICT1; | |
/* falls through */ | |
case DICT1: | |
if (z.avail_in === 0) | |
return r; | |
r = f; | |
z.avail_in--; | |
z.total_in++; | |
z.istate.need += (z.read_byte(z.next_in_index++) & 0xff); | |
z.istate.mode = DICT0; | |
return Z_NEED_DICT; | |
case DICT0: | |
z.istate.mode = BAD; | |
z.msg = "need dictionary"; | |
z.istate.marker = 0; // can try inflateSync | |
return Z_STREAM_ERROR; | |
case BLOCKS: | |
r = z.istate.blocks.proc(z, r); | |
if (r == Z_DATA_ERROR) { | |
z.istate.mode = BAD; | |
z.istate.marker = 0; // can try inflateSync | |
break; | |
} | |
if (r == Z_OK) { | |
r = f; | |
} | |
if (r != Z_STREAM_END) { | |
return r; | |
} | |
r = f; | |
z.istate.blocks.reset(z, z.istate.was); | |
z.istate.mode = DONE; | |
/* falls through */ | |
case DONE: | |
return Z_STREAM_END; | |
case BAD: | |
return Z_DATA_ERROR; | |
default: | |
return Z_STREAM_ERROR; | |
} | |
} | |
}; | |
that.inflateSetDictionary = function(z, dictionary, dictLength) { | |
var index = 0; | |
var length = dictLength; | |
if (!z || !z.istate || z.istate.mode != DICT0) | |
return Z_STREAM_ERROR; | |
if (length >= (1 << z.istate.wbits)) { | |
length = (1 << z.istate.wbits) - 1; | |
index = dictLength - length; | |
} | |
z.istate.blocks.set_dictionary(dictionary, index, length); | |
z.istate.mode = BLOCKS; | |
return Z_OK; | |
}; | |
that.inflateSync = function(z) { | |
var n; // number of bytes to look at | |
var p; // pointer to bytes | |
var m; // number of marker bytes found in a row | |
var r, w; // temporaries to save total_in and total_out | |
// set up | |
if (!z || !z.istate) | |
return Z_STREAM_ERROR; | |
if (z.istate.mode != BAD) { | |
z.istate.mode = BAD; | |
z.istate.marker = 0; | |
} | |
if ((n = z.avail_in) === 0) | |
return Z_BUF_ERROR; | |
p = z.next_in_index; | |
m = z.istate.marker; | |
// search | |
while (n !== 0 && m < 4) { | |
if (z.read_byte(p) == mark[m]) { | |
m++; | |
} else if (z.read_byte(p) !== 0) { | |
m = 0; | |
} else { | |
m = 4 - m; | |
} | |
p++; | |
n--; | |
} | |
// restore | |
z.total_in += p - z.next_in_index; | |
z.next_in_index = p; | |
z.avail_in = n; | |
z.istate.marker = m; | |
// return no joy or set up to restart on a new block | |
if (m != 4) { | |
return Z_DATA_ERROR; | |
} | |
r = z.total_in; | |
w = z.total_out; | |
inflateReset(z); | |
z.total_in = r; | |
z.total_out = w; | |
z.istate.mode = BLOCKS; | |
return Z_OK; | |
}; | |
// Returns true if inflate is currently at the end of a block generated | |
// by Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP | |
// implementation to provide an additional safety check. PPP uses | |
// Z_SYNC_FLUSH | |
// but removes the length bytes of the resulting empty stored block. When | |
// decompressing, PPP checks that at the end of input packet, inflate is | |
// waiting for these length bytes. | |
that.inflateSyncPoint = function(z) { | |
if (!z || !z.istate || !z.istate.blocks) | |
return Z_STREAM_ERROR; | |
return z.istate.blocks.sync_point(); | |
}; | |
} | |
// ZStream | |
function ZStream() { | |
} | |
ZStream.prototype = { | |
inflateInit : function(bits) { | |
var that = this; | |
that.istate = new Inflate(); | |
if (!bits) | |
bits = MAX_BITS; | |
return that.istate.inflateInit(that, bits); | |
}, | |
inflate : function(f) { | |
var that = this; | |
if (!that.istate) | |
return Z_STREAM_ERROR; | |
return that.istate.inflate(that, f); | |
}, | |
inflateEnd : function() { | |
var that = this; | |
if (!that.istate) | |
return Z_STREAM_ERROR; | |
var ret = that.istate.inflateEnd(that); | |
that.istate = null; | |
return ret; | |
}, | |
inflateSync : function() { | |
var that = this; | |
if (!that.istate) | |
return Z_STREAM_ERROR; | |
return that.istate.inflateSync(that); | |
}, | |
inflateSetDictionary : function(dictionary, dictLength) { | |
var that = this; | |
if (!that.istate) | |
return Z_STREAM_ERROR; | |
return that.istate.inflateSetDictionary(that, dictionary, dictLength); | |
}, | |
read_byte : function(start) { | |
var that = this; | |
return that.next_in.subarray(start, start + 1)[0]; | |
}, | |
read_buf : function(start, size) { | |
var that = this; | |
return that.next_in.subarray(start, start + size); | |
} | |
}; | |
// Inflater | |
function Inflater() { | |
var that = this; | |
var z = new ZStream(); | |
var bufsize = 512; | |
var flush = Z_NO_FLUSH; | |
var buf = new Uint8Array(bufsize); | |
var nomoreinput = false; | |
z.inflateInit(); | |
z.next_out = buf; | |
that.append = function(data, onprogress) { | |
var err, buffers = [], lastIndex = 0, bufferIndex = 0, bufferSize = 0, array; | |
if (data.length === 0) | |
return; | |
z.next_in_index = 0; | |
z.next_in = data; | |
z.avail_in = data.length; | |
do { | |
z.next_out_index = 0; | |
z.avail_out = bufsize; | |
if ((z.avail_in === 0) && (!nomoreinput)) { // if buffer is empty and more input is available, refill it | |
z.next_in_index = 0; | |
nomoreinput = true; | |
} | |
err = z.inflate(flush); | |
if (nomoreinput && (err == Z_BUF_ERROR)) | |
return -1; | |
if (err != Z_OK && err != Z_STREAM_END) | |
throw "inflating: " + z.msg; | |
if ((nomoreinput || err == Z_STREAM_END) && (z.avail_in == data.length)) | |
return -1; | |
if (z.next_out_index) | |
if (z.next_out_index == bufsize) | |
buffers.push(new Uint8Array(buf)); | |
else | |
buffers.push(new Uint8Array(buf.subarray(0, z.next_out_index))); | |
bufferSize += z.next_out_index; | |
if (onprogress && z.next_in_index > 0 && z.next_in_index != lastIndex) { | |
onprogress(z.next_in_index); | |
lastIndex = z.next_in_index; | |
} | |
} while (z.avail_in > 0 || z.avail_out === 0); | |
array = new Uint8Array(bufferSize); | |
buffers.forEach(function(chunk) { | |
array.set(chunk, bufferIndex); | |
bufferIndex += chunk.length; | |
}); | |
return array; | |
}; | |
that.flush = function() { | |
z.inflateEnd(); | |
}; | |
} | |
var inflater; | |
if (obj.zip) | |
obj.zip.Inflater = Inflater; | |
else { | |
inflater = new Inflater(); | |
obj.addEventListener("message", function(event) { | |
var message = event.data; | |
if (message.append) | |
obj.postMessage({ | |
onappend : true, | |
data : inflater.append(message.data, function(current) { | |
obj.postMessage({ | |
progress : true, | |
current : current | |
}); | |
}) | |
}); | |
if (message.flush) { | |
inflater.flush(); | |
obj.postMessage({ | |
onflush : true | |
}); | |
} | |
}, false); | |
} | |
})(this); |
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var feature; | |
var stopMarker; | |
var shapeHusk; | |
var stopHusk; | |
var minLat; | |
var maxLat; | |
var minLng; | |
var maxLng; | |
var strokeWidth = 3; | |
var map = new L.Map("map", {center: [35.78, -78.68], zoom: 13}) | |
map.addLayer(new L.StamenTileLayer("toner-lite")); | |
var svg = d3.select(map.getPanes().overlayPane).append("svg"), | |
stopHuskGroup = svg.append("g").attr("class", "stop-husk-group leaflet-zoom-hide"), | |
shapeHuskGroup = svg.append("g").attr("class", "shape-husk-group leaflet-zoom-hide"), | |
stopGroup = svg.append("g").attr("class", "stop-group leaflet-zoom-hide"), | |
shapeGroup = svg.append("g").attr("class", "shape-group leaflet-zoom-hide"); | |
var pointCache = {}; | |
var projectPoint = function(point) { | |
var key = point[0] + ',' + point[1]; | |
if (pointCache[key] === undefined) { | |
pointCache[key] = map.latLngToLayerPoint(new L.LatLng(point[0], point[1])); | |
} | |
return pointCache[key]; | |
} | |
var color = d3.scale.category20(); | |
var line = d3.svg.line() | |
.x(function(d) { return projectPoint([d.lat, d.lon]).x; }) | |
.y(function(d) { return projectPoint([d.lat, d.lon]).y; }) | |
var drawShapes = function(shapeRows) { | |
pointCache = {}; | |
var shapes = shapeRows.reduce(combineShapeRows); | |
var lats = shapeRows.map(function(shape) { return shape.lat }); | |
var lngs = shapeRows.map(function(shape) { return shape.lon }); | |
minLat = d3.min(lats); | |
minLng = d3.min(lngs); | |
maxLat = d3.max(lats); | |
maxLng = d3.max(lngs); | |
var topLeft = projectPoint([maxLat, minLng]); | |
var bottomRight = projectPoint([minLat, maxLng]); | |
var southWest = L.latLng(minLat, minLng); | |
var northEast = L.latLng(maxLat, maxLng); | |
var bounds = L.latLngBounds(southWest, northEast); | |
topLeft.x = topLeft.x - strokeWidth; | |
topLeft.y = topLeft.y - strokeWidth; | |
bottomRight.x = bottomRight.x + strokeWidth; | |
bottomRight.y = bottomRight.y + strokeWidth; | |
svg.attr("width", bottomRight.x - topLeft.x) | |
.attr("height", bottomRight.y - topLeft.y) | |
.style("left", topLeft.x + "px") | |
.style("top", topLeft.y + "px"); | |
shapeHuskGroup.attr("transform", "translate(" + -topLeft.x + "," + -topLeft.y + ")"); | |
shapeGroup.attr("transform", "translate(" + -topLeft.x + "," + -topLeft.y + ")"); | |
shapeHusk = shapeHuskGroup.selectAll('.husk') | |
.data(d3.entries(shapes), function(d) { return d.key; }) | |
shapeHusk.enter().append('path') | |
.attr('class', 'husk') | |
.attr("d", function(d) { return line(d.value); }) | |
.style({ | |
fill: 'none', | |
'stroke': '#000', | |
'stroke-width': strokeWidth * 2, | |
'stroke-opacity': 1 | |
}); | |
shapeHusk.exit().remove(); | |
feature = shapeGroup.selectAll('.feature') | |
.data(d3.entries(shapes), function(d) { return d.key; }) | |
feature.enter().append('path') | |
.attr('class', 'feature') | |
.attr('d', function(d) { return line(d.value); }) | |
.style('stroke', function(d, i) { return color(i); }) | |
.style({ | |
fill: 'none', | |
'stroke-width': strokeWidth, | |
'stroke-opacity': 0.5 | |
}); | |
feature.exit().remove(); | |
map.fitBounds(bounds); | |
}; | |
var resetShapes = function() { | |
pointCache = {}; | |
strokeWidth = map.getZoom() < 9 ? 1 : (map.getZoom() - 8); | |
var topLeft = projectPoint([maxLat, minLng]); | |
var bottomRight = projectPoint([minLat, maxLng]); | |
topLeft.x = topLeft.x - strokeWidth; | |
topLeft.y = topLeft.y - strokeWidth; | |
bottomRight.x = bottomRight.x + strokeWidth; | |
bottomRight.y = bottomRight.y + strokeWidth; | |
svg.attr("width", bottomRight.x - topLeft.x) | |
.attr("height", bottomRight.y - topLeft.y) | |
.style("left", topLeft.x + "px") | |
.style("top", topLeft.y + "px"); | |
shapeHuskGroup.attr("transform", "translate(" + -topLeft.x + "," + -topLeft.y + ")"); | |
shapeGroup.attr("transform", "translate(" + -topLeft.x + "," + -topLeft.y + ")"); | |
shapeHusk.attr("d", function(d) { return line(d.value); }) | |
.style({'stroke-width': strokeWidth * 2}); | |
feature.attr("d", function(d) { return line(d.value); }) | |
.style({'stroke-width': strokeWidth}); | |
} | |
var drawStops = function(data) { | |
pointCache = {}; | |
var lats = data.map(function(stop) { return stop.lat }); | |
var lngs = data.map(function(stop) { return stop.lon }); | |
var topLeft = projectPoint([d3.max(lats), d3.min(lngs)]); | |
var bottomRight = projectPoint([d3.min(lats), d3.max(lngs)]); | |
topLeft.x = topLeft.x - strokeWidth; | |
topLeft.y = topLeft.y - strokeWidth; | |
bottomRight.x = bottomRight.x + strokeWidth; | |
bottomRight.y = bottomRight.y + strokeWidth; | |
stopHuskGroup.attr("transform", "translate(" + -topLeft.x + "," + -topLeft.y + ")"); | |
stopGroup.attr("transform", "translate(" + -topLeft.x + "," + -topLeft.y + ")"); | |
stopHusk = stopHuskGroup.selectAll('.stop-husk') | |
.data(data, function(d) { return d.id; }) | |
stopHusk.enter().append('circle') | |
.attr('class', 'stop-husk') | |
.attr('r', strokeWidth * 2) | |
.attr('cx', function(d) { return projectPoint([d.lat, d.lon]).x; }) | |
.attr('cy', function(d) { return projectPoint([d.lat, d.lon]).y; }) | |
.style('fill', '#fff'); | |
stopHusk.exit().remove(); | |
stopMarker = stopGroup.selectAll('.stop') | |
.data(data, function(d) { return d.id; }) | |
stopMarker.enter().append('circle') | |
.attr('class', 'stop') | |
.attr('r', strokeWidth) | |
.attr('cx', function(d) { return projectPoint([d.lat, d.lon]).x; }) | |
.attr('cy', function(d) { return projectPoint([d.lat, d.lon]).y; }) | |
.style('fill', '#35A9FC'); | |
stopMarker.exit().remove(); | |
}; | |
var resetStops = function() { | |
pointCache = {}; | |
strokeWidth = map.getZoom() < 9 ? 1 : (map.getZoom() - 8); | |
var topLeft = projectPoint([maxLat, minLng]); | |
var bottomRight = projectPoint([minLat, maxLng]); | |
topLeft.x = topLeft.x - strokeWidth; | |
topLeft.y = topLeft.y - strokeWidth; | |
bottomRight.x = bottomRight.x + strokeWidth; | |
bottomRight.y = bottomRight.y + strokeWidth; | |
stopHuskGroup.attr("transform", "translate(" + -topLeft.x + "," + -topLeft.y + ")"); | |
stopGroup.attr("transform", "translate(" + -topLeft.x + "," + -topLeft.y + ")"); | |
stopHusk.attr('r', strokeWidth * 2) | |
.attr('cx', function(d) { return projectPoint([d.lat, d.lon]).x; }) | |
.attr('cy', function(d) { return projectPoint([d.lat, d.lon]).y; }) | |
stopMarker.attr('r', strokeWidth) | |
.attr('cx', function(d) { return projectPoint([d.lat, d.lon]).x; }) | |
.attr('cy', function(d) { return projectPoint([d.lat, d.lon]).y; }) | |
}; | |
var cleanShapeRow = function(row) { | |
return { | |
id: row.shape_id, | |
lat: parseFloat(row.shape_pt_lat), | |
lon: parseFloat(row.shape_pt_lon), | |
sequence: row.shape_pt_sequence | |
}; | |
}; | |
var cleanStopRow = function(row) { | |
return { | |
id: row.stop_id, | |
code: row.stop_code, | |
lat: parseFloat(row.stop_lat), | |
lon: parseFloat(row.stop_lon), | |
name: row.stop_name | |
}; | |
}; | |
var combineShapeRows = function(previous, current, index) { | |
if (index === 1) { | |
var tmp = {}; | |
tmp[previous.id] = [previous]; | |
previous = tmp; | |
} | |
if (!previous.hasOwnProperty(current.id)) { | |
previous[current.id] = []; | |
} | |
previous[current.id].push(current); | |
return previous; | |
}; | |
var load_shapes = function(csv) { | |
var data = d3.csv.parse(csv, cleanShapeRow); | |
drawShapes(data); | |
}; | |
var load_stops = function(csv) { | |
var data = d3.csv.parse(csv, cleanStopRow); | |
drawStops(data); | |
}; | |
var upload_button = function(el) { | |
var uploader = document.getElementById(el); | |
var handleFiles = function() { | |
parseGtfs(this.files[0], { | |
'shapes.txt': load_shapes, | |
//'stops.txt': load_stops | |
}); | |
}; | |
uploader.addEventListener("change", handleFiles, false); | |
}; | |
upload_button("uploader"); | |
map.on('viewreset', function() { | |
resetShapes(); | |
//resetStops(); | |
}); |
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(function(exports) { | |
/* | |
* tile.stamen.js v1.3.0 | |
*/ | |
var SUBDOMAINS = "a. b. c. d.".split(" "), | |
MAKE_PROVIDER = function(layer, type, minZoom, maxZoom) { | |
return { | |
"url": ["http://{S}tile.stamen.com/", layer, "/{Z}/{X}/{Y}.", type].join(""), | |
"type": type, | |
"subdomains": SUBDOMAINS.slice(), | |
"minZoom": minZoom, | |
"maxZoom": maxZoom, | |
"attribution": [ | |
'Map tiles by <a href="http://stamen.com/">Stamen Design</a>, ', | |
'under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>. ', | |
'Data by <a href="http://openstreetmap.org/">OpenStreetMap</a>, ', | |
'under <a href="http://creativecommons.org/licenses/by-sa/3.0">CC BY SA</a>.' | |
].join("") | |
}; | |
}, | |
PROVIDERS = { | |
"toner": MAKE_PROVIDER("toner", "png", 0, 20), | |
"terrain": MAKE_PROVIDER("terrain", "jpg", 4, 18), | |
"watercolor": MAKE_PROVIDER("watercolor", "jpg", 1, 18), | |
"trees-cabs-crime": { | |
"url": "http://{S}.tiles.mapbox.com/v3/stamen.trees-cabs-crime/{Z}/{X}/{Y}.png", | |
"type": "png", | |
"subdomains": "a b c d".split(" "), | |
"minZoom": 11, | |
"maxZoom": 18, | |
"extent": [ | |
{"lat": 37.853, "lon": -122.577}, | |
{"lat": 37.684, "lon": -122.313} | |
], | |
"attribution": [ | |
'Design by Shawn Allen at <a href="http://stamen.com/">Stamen</a>.', | |
'Data courtesy of <a href="http://fuf.net/">FuF</a>,', | |
'<a href="http://www.yellowcabsf.com/">Yellow Cab</a>', | |
'& <a href="http://sf-police.org/">SFPD</a>.' | |
].join(" ") | |
} | |
}; | |
// set up toner and terrain flavors | |
setupFlavors("toner", ["hybrid", "labels", "lines", "background", "lite"]); | |
setupFlavors("terrain", ["background"]); | |
setupFlavors("terrain", ["labels", "lines"], "png"); | |
// toner 2010 | |
deprecate("toner", ["2010"]); | |
// toner 2011 flavors | |
deprecate("toner", ["2011", "2011-lines", "2011-labels", "2011-lite"]); | |
var odbl = [ | |
"toner", | |
"toner-hybrid", | |
"toner-labels", | |
"toner-lines", | |
"toner-background", | |
"toner-lite" | |
]; | |
for (var i = 0; i < odbl.length; i++) { | |
var key = odbl[i]; | |
PROVIDERS[key].retina = true; | |
PROVIDERS[key].attribution = [ | |
'Map tiles by <a href="http://stamen.com/">Stamen Design</a>, ', | |
'under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>. ', | |
'Data by <a href="http://openstreetmap.org">OpenStreetMap</a>, ', | |
'under <a href="http://www.openstreetmap.org/copyright">ODbL</a>.' | |
].join(""); | |
} | |
/* | |
* Export stamen.tile to the provided namespace. | |
*/ | |
exports.stamen = exports.stamen || {}; | |
exports.stamen.tile = exports.stamen.tile || {}; | |
exports.stamen.tile.providers = PROVIDERS; | |
exports.stamen.tile.getProvider = getProvider; | |
function deprecate(base, flavors) { | |
var provider = getProvider(base); | |
for (var i = 0; i < flavors.length; i++) { | |
var flavor = [base, flavors[i]].join("-"); | |
PROVIDERS[flavor] = MAKE_PROVIDER(flavor, provider.type, provider.minZoom, provider.maxZoom); | |
PROVIDERS[flavor].deprecated = true; | |
} | |
}; | |
/* | |
* A shortcut for specifying "flavors" of a style, which are assumed to have the | |
* same type and zoom range. | |
*/ | |
function setupFlavors(base, flavors, type) { | |
var provider = getProvider(base); | |
for (var i = 0; i < flavors.length; i++) { | |
var flavor = [base, flavors[i]].join("-"); | |
PROVIDERS[flavor] = MAKE_PROVIDER(flavor, type || provider.type, provider.minZoom, provider.maxZoom); | |
} | |
} | |
/* | |
* Get the named provider, or throw an exception if it doesn't exist. | |
*/ | |
function getProvider(name) { | |
if (name in PROVIDERS) { | |
var provider = PROVIDERS[name]; | |
if (provider.deprecated && console && console.warn) { | |
console.warn(name + " is a deprecated style; it will be redirected to its replacement. For performance improvements, please change your reference."); | |
} | |
return provider; | |
} else { | |
throw 'No such provider (' + name + ')'; | |
} | |
} | |
/* | |
* StamenTileLayer for modestmaps-js | |
* <https://github.com/modestmaps/modestmaps-js/> | |
* | |
* Works with both 1.x and 2.x by checking for the existence of MM.Template. | |
*/ | |
if (typeof MM === "object") { | |
var ModestTemplate = (typeof MM.Template === "function") | |
? MM.Template | |
: MM.TemplatedMapProvider; | |
MM.StamenTileLayer = function(name) { | |
var provider = getProvider(name); | |
this._provider = provider; | |
MM.Layer.call(this, new ModestTemplate(provider.url, provider.subdomains)); | |
this.provider.setZoomRange(provider.minZoom, provider.maxZoom); | |
this.attribution = provider.attribution; | |
}; | |
MM.StamenTileLayer.prototype = { | |
setCoordLimits: function(map) { | |
var provider = this._provider; | |
if (provider.extent) { | |
map.coordLimits = [ | |
map.locationCoordinate(provider.extent[0]).zoomTo(provider.minZoom), | |
map.locationCoordinate(provider.extent[1]).zoomTo(provider.maxZoom) | |
]; | |
return true; | |
} else { | |
return false; | |
} | |
} | |
}; | |
MM.extend(MM.StamenTileLayer, MM.Layer); | |
} | |
/* | |
* StamenTileLayer for Leaflet | |
* <http://leaflet.cloudmade.com/> | |
* | |
* Tested with version 0.3 and 0.4, but should work on all 0.x releases. | |
*/ | |
if (typeof L === "object") { | |
L.StamenTileLayer = L.TileLayer.extend({ | |
initialize: function(name, options) { | |
var provider = getProvider(name), | |
url = provider.url.replace(/({[A-Z]})/g, function(s) { | |
return s.toLowerCase(); | |
}), | |
opts = L.Util.extend({}, options, { | |
"minZoom": provider.minZoom, | |
"maxZoom": provider.maxZoom, | |
"subdomains": provider.subdomains, | |
"scheme": "xyz", | |
"attribution": provider.attribution | |
}); | |
L.TileLayer.prototype.initialize.call(this, url, opts); | |
} | |
}); | |
/* | |
* Factory function for consistency with Leaflet conventions | |
*/ | |
L.stamenTileLayer = function (options, source) { | |
return new L.StamenTileLayer(options, source); | |
}; | |
} | |
/* | |
* StamenTileLayer for OpenLayers | |
* <http://openlayers.org/> | |
* | |
* Tested with v2.1x. | |
*/ | |
if (typeof OpenLayers === "object") { | |
// make a tile URL template OpenLayers-compatible | |
function openlayerize(url) { | |
return url.replace(/({.})/g, function(v) { | |
return "$" + v.toLowerCase(); | |
}); | |
} | |
// based on http://www.bostongis.com/PrinterFriendly.aspx?content_name=using_custom_osm_tiles | |
OpenLayers.Layer.Stamen = OpenLayers.Class(OpenLayers.Layer.OSM, { | |
initialize: function(name, options) { | |
var provider = getProvider(name), | |
url = provider.url, | |
subdomains = provider.subdomains, | |
hosts = []; | |
if (url.indexOf("{S}") > -1) { | |
for (var i = 0; i < subdomains.length; i++) { | |
hosts.push(openlayerize(url.replace("{S}", subdomains[i]))); | |
} | |
} else { | |
hosts.push(openlayerize(url)); | |
} | |
options = OpenLayers.Util.extend({ | |
"numZoomLevels": provider.maxZoom, | |
"buffer": 0, | |
"transitionEffect": "resize", | |
// see: <http://dev.openlayers.org/apidocs/files/OpenLayers/Layer/OSM-js.html#OpenLayers.Layer.OSM.tileOptions> | |
// and: <http://dev.openlayers.org/apidocs/files/OpenLayers/Tile/Image-js.html#OpenLayers.Tile.Image.crossOriginKeyword> | |
"tileOptions": { | |
"crossOriginKeyword": null | |
}, | |
"attribution": provider.attribution | |
}, options); | |
return OpenLayers.Layer.OSM.prototype.initialize.call(this, name, hosts, options); | |
} | |
}); | |
} | |
/* | |
* StamenMapType for Google Maps API V3 | |
* <https://developers.google.com/maps/documentation/javascript/> | |
*/ | |
if (typeof google === "object" && typeof google.maps === "object") { | |
google.maps.StamenMapType = function(name) { | |
var provider = getProvider(name), | |
subdomains = provider.subdomains; | |
return google.maps.ImageMapType.call(this, { | |
"getTileUrl": function(coord, zoom) { | |
var numTiles = 1 << zoom, | |
wx = coord.x % numTiles, | |
x = (wx < 0) ? wx + numTiles : wx, | |
y = coord.y, | |
index = (zoom + x + y) % subdomains.length; | |
return provider.url | |
.replace("{S}", subdomains[index]) | |
.replace("{Z}", zoom) | |
.replace("{X}", x) | |
.replace("{Y}", y); | |
}, | |
"tileSize": new google.maps.Size(256, 256), | |
"name": name, | |
"minZoom": provider.minZoom, | |
"maxZoom": provider.maxZoom | |
}); | |
}; | |
// FIXME: is there a better way to extend classes in Google land? | |
google.maps.StamenMapType.prototype = new google.maps.ImageMapType("_"); | |
} | |
})(typeof exports === "undefined" ? this : exports); |
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/* | |
Copyright (c) 2013 Gildas Lormeau. All rights reserved. | |
Redistribution and use in source and binary forms, with or without | |
modification, are permitted provided that the following conditions are met: | |
1. Redistributions of source code must retain the above copyright notice, | |
this list of conditions and the following disclaimer. | |
2. Redistributions in binary form must reproduce the above copyright | |
notice, this list of conditions and the following disclaimer in | |
the documentation and/or other materials provided with the distribution. | |
3. The names of the authors may not be used to endorse or promote products | |
derived from this software without specific prior written permission. | |
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, | |
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT, | |
INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, | |
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, | |
OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
(function(obj) { | |
"use strict"; | |
var ERR_BAD_FORMAT = "File format is not recognized."; | |
var ERR_ENCRYPTED = "File contains encrypted entry."; | |
var ERR_ZIP64 = "File is using Zip64 (4gb+ file size)."; | |
var ERR_READ = "Error while reading zip file."; | |
var ERR_WRITE = "Error while writing zip file."; | |
var ERR_WRITE_DATA = "Error while writing file data."; | |
var ERR_READ_DATA = "Error while reading file data."; | |
var ERR_DUPLICATED_NAME = "File already exists."; | |
var CHUNK_SIZE = 512 * 1024; | |
var INFLATE_JS = "inflate.js"; | |
var DEFLATE_JS = "deflate.js"; | |
var TEXT_PLAIN = "text/plain"; | |
var MESSAGE_EVENT = "message"; | |
var appendABViewSupported; | |
try { | |
appendABViewSupported = new Blob([ new DataView(new ArrayBuffer(0)) ]).size === 0; | |
} catch (e) { | |
} | |
function Crc32() { | |
var crc = -1, that = this; | |
that.append = function(data) { | |
var offset, table = that.table; | |
for (offset = 0; offset < data.length; offset++) | |
crc = (crc >>> 8) ^ table[(crc ^ data[offset]) & 0xFF]; | |
}; | |
that.get = function() { | |
return ~crc; | |
}; | |
} | |
Crc32.prototype.table = (function() { | |
var i, j, t, table = []; | |
for (i = 0; i < 256; i++) { | |
t = i; | |
for (j = 0; j < 8; j++) | |
if (t & 1) | |
t = (t >>> 1) ^ 0xEDB88320; | |
else | |
t = t >>> 1; | |
table[i] = t; | |
} | |
return table; | |
})(); | |
function blobSlice(blob, index, length) { | |
if (blob.slice) | |
return blob.slice(index, index + length); | |
else if (blob.webkitSlice) | |
return blob.webkitSlice(index, index + length); | |
else if (blob.mozSlice) | |
return blob.mozSlice(index, index + length); | |
else if (blob.msSlice) | |
return blob.msSlice(index, index + length); | |
} | |
function getDataHelper(byteLength, bytes) { | |
var dataBuffer, dataArray; | |
dataBuffer = new ArrayBuffer(byteLength); | |
dataArray = new Uint8Array(dataBuffer); | |
if (bytes) | |
dataArray.set(bytes, 0); | |
return { | |
buffer : dataBuffer, | |
array : dataArray, | |
view : new DataView(dataBuffer) | |
}; | |
} | |
// Readers | |
function Reader() { | |
} | |
function TextReader(text) { | |
var that = this, blobReader; | |
function init(callback, onerror) { | |
var blob = new Blob([ text ], { | |
type : TEXT_PLAIN | |
}); | |
blobReader = new BlobReader(blob); | |
blobReader.init(function() { | |
that.size = blobReader.size; | |
callback(); | |
}, onerror); | |
} | |
function readUint8Array(index, length, callback, onerror) { | |
blobReader.readUint8Array(index, length, callback, onerror); | |
} | |
that.size = 0; | |
that.init = init; | |
that.readUint8Array = readUint8Array; | |
} | |
TextReader.prototype = new Reader(); | |
TextReader.prototype.constructor = TextReader; | |
function Data64URIReader(dataURI) { | |
var that = this, dataStart; | |
function init(callback) { | |
var dataEnd = dataURI.length; | |
while (dataURI.charAt(dataEnd - 1) == "=") | |
dataEnd--; | |
dataStart = dataURI.indexOf(",") + 1; | |
that.size = Math.floor((dataEnd - dataStart) * 0.75); | |
callback(); | |
} | |
function readUint8Array(index, length, callback) { | |
var i, data = getDataHelper(length); | |
var start = Math.floor(index / 3) * 4; | |
var end = Math.ceil((index + length) / 3) * 4; | |
var bytes = obj.atob(dataURI.substring(start + dataStart, end + dataStart)); | |
var delta = index - Math.floor(start / 4) * 3; | |
for (i = delta; i < delta + length; i++) | |
data.array[i - delta] = bytes.charCodeAt(i); | |
callback(data.array); | |
} | |
that.size = 0; | |
that.init = init; | |
that.readUint8Array = readUint8Array; | |
} | |
Data64URIReader.prototype = new Reader(); | |
Data64URIReader.prototype.constructor = Data64URIReader; | |
function BlobReader(blob) { | |
var that = this; | |
function init(callback) { | |
that.size = blob.size; | |
callback(); | |
} | |
function readUint8Array(index, length, callback, onerror) { | |
var reader = new FileReader(); | |
reader.onload = function(e) { | |
callback(new Uint8Array(e.target.result)); | |
}; | |
reader.onerror = onerror; | |
reader.readAsArrayBuffer(blobSlice(blob, index, length)); | |
} | |
that.size = 0; | |
that.init = init; | |
that.readUint8Array = readUint8Array; | |
} | |
BlobReader.prototype = new Reader(); | |
BlobReader.prototype.constructor = BlobReader; | |
// Writers | |
function Writer() { | |
} | |
Writer.prototype.getData = function(callback) { | |
callback(this.data); | |
}; | |
function TextWriter(encoding) { | |
var that = this, blob; | |
function init(callback) { | |
blob = new Blob([], { | |
type : TEXT_PLAIN | |
}); | |
callback(); | |
} | |
function writeUint8Array(array, callback) { | |
blob = new Blob([ blob, appendABViewSupported ? array : array.buffer ], { | |
type : TEXT_PLAIN | |
}); | |
callback(); | |
} | |
function getData(callback, onerror) { | |
var reader = new FileReader(); | |
reader.onload = function(e) { | |
callback(e.target.result); | |
}; | |
reader.onerror = onerror; | |
reader.readAsText(blob, encoding); | |
} | |
that.init = init; | |
that.writeUint8Array = writeUint8Array; | |
that.getData = getData; | |
} | |
TextWriter.prototype = new Writer(); | |
TextWriter.prototype.constructor = TextWriter; | |
function Data64URIWriter(contentType) { | |
var that = this, data = "", pending = ""; | |
function init(callback) { | |
data += "data:" + (contentType || "") + ";base64,"; | |
callback(); | |
} | |
function writeUint8Array(array, callback) { | |
var i, delta = pending.length, dataString = pending; | |
pending = ""; | |
for (i = 0; i < (Math.floor((delta + array.length) / 3) * 3) - delta; i++) | |
dataString += String.fromCharCode(array[i]); | |
for (; i < array.length; i++) | |
pending += String.fromCharCode(array[i]); | |
if (dataString.length > 2) | |
data += obj.btoa(dataString); | |
else | |
pending = dataString; | |
callback(); | |
} | |
function getData(callback) { | |
callback(data + obj.btoa(pending)); | |
} | |
that.init = init; | |
that.writeUint8Array = writeUint8Array; | |
that.getData = getData; | |
} | |
Data64URIWriter.prototype = new Writer(); | |
Data64URIWriter.prototype.constructor = Data64URIWriter; | |
function BlobWriter(contentType) { | |
var blob, that = this; | |
function init(callback) { | |
blob = new Blob([], { | |
type : contentType | |
}); | |
callback(); | |
} | |
function writeUint8Array(array, callback) { | |
blob = new Blob([ blob, appendABViewSupported ? array : array.buffer ], { | |
type : contentType | |
}); | |
callback(); | |
} | |
function getData(callback) { | |
callback(blob); | |
} | |
that.init = init; | |
that.writeUint8Array = writeUint8Array; | |
that.getData = getData; | |
} | |
BlobWriter.prototype = new Writer(); | |
BlobWriter.prototype.constructor = BlobWriter; | |
// inflate/deflate core functions | |
function launchWorkerProcess(worker, reader, writer, offset, size, onappend, onprogress, onend, onreaderror, onwriteerror) { | |
var chunkIndex = 0, index, outputSize; | |
function onflush() { | |
worker.removeEventListener(MESSAGE_EVENT, onmessage, false); | |
onend(outputSize); | |
} | |
function onmessage(event) { | |
var message = event.data, data = message.data; | |
if (message.onappend) { | |
outputSize += data.length; | |
writer.writeUint8Array(data, function() { | |
onappend(false, data); | |
step(); | |
}, onwriteerror); | |
} | |
if (message.onflush) | |
if (data) { | |
outputSize += data.length; | |
writer.writeUint8Array(data, function() { | |
onappend(false, data); | |
onflush(); | |
}, onwriteerror); | |
} else | |
onflush(); | |
if (message.progress && onprogress) | |
onprogress(index + message.current, size); | |
} | |
function step() { | |
index = chunkIndex * CHUNK_SIZE; | |
if (index < size) | |
reader.readUint8Array(offset + index, Math.min(CHUNK_SIZE, size - index), function(array) { | |
worker.postMessage({ | |
append : true, | |
data : array | |
}); | |
chunkIndex++; | |
if (onprogress) | |
onprogress(index, size); | |
onappend(true, array); | |
}, onreaderror); | |
else | |
worker.postMessage({ | |
flush : true | |
}); | |
} | |
outputSize = 0; | |
worker.addEventListener(MESSAGE_EVENT, onmessage, false); | |
step(); | |
} | |
function launchProcess(process, reader, writer, offset, size, onappend, onprogress, onend, onreaderror, onwriteerror) { | |
var chunkIndex = 0, index, outputSize = 0; | |
function step() { | |
var outputData; | |
index = chunkIndex * CHUNK_SIZE; | |
if (index < size) | |
reader.readUint8Array(offset + index, Math.min(CHUNK_SIZE, size - index), function(inputData) { | |
var outputData = process.append(inputData, function() { | |
if (onprogress) | |
onprogress(offset + index, size); | |
}); | |
outputSize += outputData.length; | |
onappend(true, inputData); | |
writer.writeUint8Array(outputData, function() { | |
onappend(false, outputData); | |
chunkIndex++; | |
setTimeout(step, 1); | |
}, onwriteerror); | |
if (onprogress) | |
onprogress(index, size); | |
}, onreaderror); | |
else { | |
outputData = process.flush(); | |
if (outputData) { | |
outputSize += outputData.length; | |
writer.writeUint8Array(outputData, function() { | |
onappend(false, outputData); | |
onend(outputSize); | |
}, onwriteerror); | |
} else | |
onend(outputSize); | |
} | |
} | |
step(); | |
} | |
function inflate(reader, writer, offset, size, computeCrc32, onend, onprogress, onreaderror, onwriteerror) { | |
var worker, crc32 = new Crc32(); | |
function oninflateappend(sending, array) { | |
if (computeCrc32 && !sending) | |
crc32.append(array); | |
} | |
function oninflateend(outputSize) { | |
onend(outputSize, crc32.get()); | |
} | |
if (obj.zip.useWebWorkers) { | |
worker = new Worker(obj.zip.workerScriptsPath + INFLATE_JS); | |
launchWorkerProcess(worker, reader, writer, offset, size, oninflateappend, onprogress, oninflateend, onreaderror, onwriteerror); | |
} else | |
launchProcess(new obj.zip.Inflater(), reader, writer, offset, size, oninflateappend, onprogress, oninflateend, onreaderror, onwriteerror); | |
return worker; | |
} | |
function deflate(reader, writer, level, onend, onprogress, onreaderror, onwriteerror) { | |
var worker, crc32 = new Crc32(); | |
function ondeflateappend(sending, array) { | |
if (sending) | |
crc32.append(array); | |
} | |
function ondeflateend(outputSize) { | |
onend(outputSize, crc32.get()); | |
} | |
function onmessage() { | |
worker.removeEventListener(MESSAGE_EVENT, onmessage, false); | |
launchWorkerProcess(worker, reader, writer, 0, reader.size, ondeflateappend, onprogress, ondeflateend, onreaderror, onwriteerror); | |
} | |
if (obj.zip.useWebWorkers) { | |
worker = new Worker(obj.zip.workerScriptsPath + DEFLATE_JS); | |
worker.addEventListener(MESSAGE_EVENT, onmessage, false); | |
worker.postMessage({ | |
init : true, | |
level : level | |
}); | |
} else | |
launchProcess(new obj.zip.Deflater(), reader, writer, 0, reader.size, ondeflateappend, onprogress, ondeflateend, onreaderror, onwriteerror); | |
return worker; | |
} | |
function copy(reader, writer, offset, size, computeCrc32, onend, onprogress, onreaderror, onwriteerror) { | |
var chunkIndex = 0, crc32 = new Crc32(); | |
function step() { | |
var index = chunkIndex * CHUNK_SIZE; | |
if (index < size) | |
reader.readUint8Array(offset + index, Math.min(CHUNK_SIZE, size - index), function(array) { | |
if (computeCrc32) | |
crc32.append(array); | |
if (onprogress) | |
onprogress(index, size, array); | |
writer.writeUint8Array(array, function() { | |
chunkIndex++; | |
step(); | |
}, onwriteerror); | |
}, onreaderror); | |
else | |
onend(size, crc32.get()); | |
} | |
step(); | |
} | |
// ZipReader | |
function decodeASCII(str) { | |
var i, out = "", charCode, extendedASCII = [ '\u00C7', '\u00FC', '\u00E9', '\u00E2', '\u00E4', '\u00E0', '\u00E5', '\u00E7', '\u00EA', '\u00EB', | |
'\u00E8', '\u00EF', '\u00EE', '\u00EC', '\u00C4', '\u00C5', '\u00C9', '\u00E6', '\u00C6', '\u00F4', '\u00F6', '\u00F2', '\u00FB', '\u00F9', | |
'\u00FF', '\u00D6', '\u00DC', '\u00F8', '\u00A3', '\u00D8', '\u00D7', '\u0192', '\u00E1', '\u00ED', '\u00F3', '\u00FA', '\u00F1', '\u00D1', | |
'\u00AA', '\u00BA', '\u00BF', '\u00AE', '\u00AC', '\u00BD', '\u00BC', '\u00A1', '\u00AB', '\u00BB', '_', '_', '_', '\u00A6', '\u00A6', | |
'\u00C1', '\u00C2', '\u00C0', '\u00A9', '\u00A6', '\u00A6', '+', '+', '\u00A2', '\u00A5', '+', '+', '-', '-', '+', '-', '+', '\u00E3', | |
'\u00C3', '+', '+', '-', '-', '\u00A6', '-', '+', '\u00A4', '\u00F0', '\u00D0', '\u00CA', '\u00CB', '\u00C8', 'i', '\u00CD', '\u00CE', | |
'\u00CF', '+', '+', '_', '_', '\u00A6', '\u00CC', '_', '\u00D3', '\u00DF', '\u00D4', '\u00D2', '\u00F5', '\u00D5', '\u00B5', '\u00FE', | |
'\u00DE', '\u00DA', '\u00DB', '\u00D9', '\u00FD', '\u00DD', '\u00AF', '\u00B4', '\u00AD', '\u00B1', '_', '\u00BE', '\u00B6', '\u00A7', | |
'\u00F7', '\u00B8', '\u00B0', '\u00A8', '\u00B7', '\u00B9', '\u00B3', '\u00B2', '_', ' ' ]; | |
for (i = 0; i < str.length; i++) { | |
charCode = str.charCodeAt(i) & 0xFF; | |
if (charCode > 127) | |
out += extendedASCII[charCode - 128]; | |
else | |
out += String.fromCharCode(charCode); | |
} | |
return out; | |
} | |
function decodeUTF8(string) { | |
return decodeURIComponent(escape(string)); | |
} | |
function getString(bytes) { | |
var i, str = ""; | |
for (i = 0; i < bytes.length; i++) | |
str += String.fromCharCode(bytes[i]); | |
return str; | |
} | |
function getDate(timeRaw) { | |
var date = (timeRaw & 0xffff0000) >> 16, time = timeRaw & 0x0000ffff; | |
try { | |
return new Date(1980 + ((date & 0xFE00) >> 9), ((date & 0x01E0) >> 5) - 1, date & 0x001F, (time & 0xF800) >> 11, (time & 0x07E0) >> 5, | |
(time & 0x001F) * 2, 0); | |
} catch (e) { | |