nakarte

Source code of https://map.sikmir.ru (fork)
git clone git://git.sikmir.ru/nakarte
Log | Files | Refs | LICENSE

commit 7468bf16aa9ef7723718b9fa0dc9864d3f81ae2c
parent 97bde40c5f14008eca01eb318b6a4b6b222eccea
Author: Sergej Orlov <wladimirych@gmail.com>
Date:   Thu,  1 Nov 2018 22:21:46 +0100

Merge branch '144-fix-waypoints-180' into release-5

Diffstat:
ALICENSE | 20++++++++++++++++++++
Mconfig/webpack.config.dev.js | 6+++---
Mconfig/webpack.config.prod.js | 2+-
Msrc/lib/leaflet.control.track-list/lib/geo_file_formats.js | 6+++---
Msrc/lib/leaflet.control.track-list/track-list.js | 6++++--
Msrc/lib/leaflet.layer.canvasMarkers/index.js | 2+-
Asrc/vendored/github.com/augustl/js-inflate/LICENSE.txt | 22++++++++++++++++++++++
Asrc/vendored/github.com/augustl/js-inflate/README.textile.txt | 34++++++++++++++++++++++++++++++++++
Asrc/vendored/github.com/augustl/js-inflate/js-inflate.js | 788+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Asrc/vendored/github.com/augustl/js-unzip/LICENSE.txt | 21+++++++++++++++++++++
Asrc/vendored/github.com/augustl/js-unzip/README.textile.txt | 83+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Dsrc/vendored/github.com/dankogai/js-deflate/rawinflate.js | 755-------------------------------------------------------------------------------
12 files changed, 980 insertions(+), 765 deletions(-)

diff --git a/LICENSE b/LICENSE @@ -0,0 +1,19 @@ +Copyright (c) 2018 Sergey Orlov + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +\ No newline at end of file diff --git a/config/webpack.config.dev.js b/config/webpack.config.dev.js @@ -92,7 +92,7 @@ module.exports = { test: /\.(js|jsx)$/, loader: 'eslint', include: paths.appSrc, - exclude: /augustl\/js-unzip|dankogai\/js-deflate/, + exclude: /augustl\/js-unzip|augustl\/js-inflate/, } ], loaders: [ @@ -100,7 +100,7 @@ module.exports = { test: /\.js$/, include: [ paths.appSrc + '/vendored/github.com/augustl/js-unzip', - paths.appSrc + '/vendored/github.com/dankogai/js-deflate' + paths.appSrc + '/vendored/github.com/augustl/js-inflate' ], loader: 'legacy' }, @@ -108,7 +108,7 @@ module.exports = { { test: /\.(js|jsx)$/, include: paths.appSrc, - exclude: /augustl\/js-unzip|dankogai\/js-deflate/, + exclude: /augustl\/js-unzip|augustl\/js-inflate/, loader: 'babel', query: { diff --git a/config/webpack.config.prod.js b/config/webpack.config.prod.js @@ -104,7 +104,7 @@ module.exports = { test: /\.js$/, include: [ paths.appSrc + '/vendored/github.com/augustl/js-unzip', - paths.appSrc + '/vendored/github.com/dankogai/js-deflate' + paths.appSrc + '/vendored/github.com/augustl/js-inflate' ], loader: 'legacy' }, diff --git a/src/lib/leaflet.control.track-list/lib/geo_file_formats.js b/src/lib/leaflet.control.track-list/lib/geo_file_formats.js @@ -1,5 +1,5 @@ import JSUnzip from 'vendored/github.com/augustl/js-unzip/js-unzip'; -import RawDeflate from 'vendored/github.com/dankogai/js-deflate/rawinflate'; +import JSInflate from 'vendored/github.com/augustl/js-inflate/js-inflate'; import stripBom from 'lib/stripBom'; import {decode as utf8_decode} from 'utf8'; @@ -430,7 +430,7 @@ function parseKmz(txt, name) { if (entry.compressionMethod === 0) { uncompressed = entry.data; } else if (entry.compressionMethod === 8) { - uncompressed = RawDeflate.inflate(entry.data); + uncompressed = JSInflate.inflate(entry.data); } else { return null; } @@ -502,7 +502,7 @@ function parseZip(txt, name) { if (entry.compressionMethod === 0) { uncompressed = entry.data; } else if (entry.compressionMethod === 8) { - uncompressed = RawDeflate.inflate(entry.data); + uncompressed = JSInflate.inflate(entry.data); } else { return null; } diff --git a/src/lib/leaflet.control.track-list/track-list.js b/src/lib/leaflet.control.track-list/track-list.js @@ -599,7 +599,8 @@ L.Control.TrackList = L.Control.extend({ movePoint: function(e) { const marker = this._movingMarker; - this._markerLayer.setMarkerPosition(marker, e.latlng); + const newLatLng = e.latlng.wrap(); + this._markerLayer.setMarkerPosition(marker, newLatLng); this.stopPlacingPoint(); }, @@ -613,7 +614,8 @@ L.Control.TrackList = L.Control.extend({ while (name.length < 3) { name = '0' + name; } - const marker = this.addPoint(parentTrack, {name: name, lat: e.latlng.lat, lng: e.latlng.lng}); + const newLatLng = e.latlng.wrap(); + const marker = this.addPoint(parentTrack, {name: name, lat: newLatLng.lat, lng: newLatLng.lng}); this._markerLayer.addMarker(marker); // we need to show prompt after marker is dispalyed; // grid layer is updated in setTimout(..., 0)after adding marker diff --git a/src/lib/leaflet.layer.canvasMarkers/index.js b/src/lib/leaflet.layer.canvasMarkers/index.js @@ -337,7 +337,7 @@ L.Layer.CanvasMarkers = L.GridLayer.extend({ findMarkerFromMouseEvent: function(e) { const - p = this._map.project(e.latlng), + p = this._map.project(e.latlng.wrap()), region = this._regions.search({minX: p.x, minY: p.y, maxX: p.x, maxY: p.y})[0]; let marker; if (region) { diff --git a/src/vendored/github.com/augustl/js-inflate/LICENSE.txt b/src/vendored/github.com/augustl/js-inflate/LICENSE.txt @@ -0,0 +1,21 @@ +Copyright (c) 2010 August Lilleaas +Copyright (C) 1999 Masanao Izumo <iz@onicos.co.jp> + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +\ No newline at end of file diff --git a/src/vendored/github.com/augustl/js-inflate/README.textile.txt b/src/vendored/github.com/augustl/js-inflate/README.textile.txt @@ -0,0 +1,33 @@ +h2. JSInflate + +A JavaScript library for inflating deflated binary blobs. Can be used to uncompress Zip files, for example. + +<pre><code>var result = JSInflate.inflate(compressedBlob);</code></pre> + +That's all there is to it! + +The test suite runs on Chrome 4, FireFox 3.6, IE7, Opera 10 and Safari 4.0.4. [TODO: Run tests on more browsers.] + +h2. Alternatives + +You might want to check out "https://github.com/dankogai/js-deflate":https://github.com/dankogai/js-deflate too. It has inflate as well as deflate. + +h2. node.js, commonjs, etc. + +See JSInflate.inflateStream. Incomplete, feel free to give this API some love and submit the code to me. + +h2. Download + +"http://github.com/downloads/augustl/js-inflate/js-inflate.min.js":http://github.com/downloads/augustl/js-inflate/js-inflate.min.js + +h2. Extracting Zip files + +If you want to extract Zip files, you can use this library along with "JSUnzip":http://github.com/augustl/js-unzip. + +h2. Acknowledgements + +Almost all the code is a copy-paste of a "script":http://www.onicos.com/staff/iz/amuse/javascript/expert/inflate.txt written by Masanao Izumo. This libary is merely a wrapper that doesn't pollute the global namespace and provides a constructor instead of a global function. Everything else was written by M. Izumo. + +h2. About + +(Barely) written by August Lilleaas <august.lilleaas@gmail.com> +\ No newline at end of file diff --git a/src/vendored/github.com/augustl/js-inflate/js-inflate.js b/src/vendored/github.com/augustl/js-inflate/js-inflate.js @@ -0,0 +1,787 @@ +(function (GLOBAL) { + /* + * Port of script by Masanao Izumo. + * + * Wrapped all the variables in a function, created a + * constructor for interacting with the lib. Everything + * else was written by M. Izumo. + * + * Original code can be found here: http://www.onicos.com/staff/iz/amuse/javascript/expert/inflate.txt + * + */ + + var zip_WSIZE = 32768; // Sliding Window size + var zip_STORED_BLOCK = 0; + var zip_STATIC_TREES = 1; + var zip_DYN_TREES = 2; + + /* for inflate */ + var zip_lbits = 9; // bits in base literal/length lookup table + var zip_dbits = 6; // bits in base distance lookup table + var zip_INBUFSIZ = 32768; // Input buffer size + var zip_INBUF_EXTRA = 64; // Extra buffer + + /* variables (inflate) */ + var zip_slide; + var zip_wp; // current position in slide + var zip_fixed_tl = null; // inflate static + var zip_fixed_td; // inflate static + var zip_fixed_bl, fixed_bd; // inflate static + var zip_bit_buf; // bit buffer + var zip_bit_len; // bits in bit buffer + var zip_method; + var zip_eof; + var zip_copy_leng; + var zip_copy_dist; + var zip_tl, zip_td; // literal/length and distance decoder tables + var zip_bl, zip_bd; // number of bits decoded by tl and td + + var zip_inflate_data; + var zip_inflate_pos; + + + /* constant tables (inflate) */ + var zip_MASK_BITS = new Array( + 0x0000, + 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff, + 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff); + // Tables for deflate from PKZIP's appnote.txt. + var zip_cplens = new Array( // 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); + /* note: see note #13 above about the 258 in this list. */ + var zip_cplext = new Array( // 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, 99, 99); // 99==invalid + var zip_cpdist = new Array( // 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 zip_cpdext = new Array( // 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); + var zip_border = new Array( // 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); + /* objects (inflate) */ + + function zip_HuftList() { + this.next = null; + this.list = null; + } + + function zip_HuftNode() { + this.e = 0; // number of extra bits or operation + this.b = 0; // number of bits in this code or subcode + + // union + this.n = 0; // literal, length base, or distance base + this.t = null; // (zip_HuftNode) pointer to next level of table + } + + function zip_HuftBuild(b, // code lengths in bits (all assumed <= BMAX) + n, // number of codes (assumed <= N_MAX) + 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 + mm // maximum lookup bits + ) { + this.BMAX = 16; // maximum bit length of any code + this.N_MAX = 288; // maximum number of codes in any set + this.status = 0; // 0: success, 1: incomplete table, 2: bad input + this.root = null; // (zip_HuftList) starting table + this.m = 0; // maximum lookup bits, returns actual + + /* Given a list of code lengths and a maximum table size, make a set of + tables to decode that set of codes. Return zero on success, one if + the given code set is incomplete (the tables are still built in this + case), two if the input is invalid (all zero length codes or an + oversubscribed set of lengths), and three if not enough memory. + The code with value 256 is special, and the tables are constructed + so that no bits beyond that code are fetched when that code is + decoded. */ + { + var a; // counter for codes of length k + var c = new Array(this.BMAX+1); // bit length count table + var el; // length of EOB code (value 256) + 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 lx = new Array(this.BMAX+1); // stack of bits per table + var p; // pointer into c[], b[], or v[] + var pidx; // index of p + var q; // (zip_HuftNode) points to current table + var r = new zip_HuftNode(); // table entry for structure assignment + var u = new Array(this.BMAX); // zip_HuftNode[BMAX][] table stack + var v = new Array(this.N_MAX); // values in order of bit length + var w; + var x = new Array(this.BMAX+1);// bit offsets, then code stack + var xp; // pointer into x or c + var y; // number of dummy codes added + var z; // number of entries in current table + var o; + var tail; // (zip_HuftList) + + tail = this.root = null; + for(i = 0; i < c.length; i++) + c[i] = 0; + for(i = 0; i < lx.length; i++) + lx[i] = 0; + for(i = 0; i < u.length; i++) + u[i] = null; + for(i = 0; i < v.length; i++) + v[i] = 0; + for(i = 0; i < x.length; i++) + x[i] = 0; + + // Generate counts for each bit length + el = n > 256 ? b[256] : this.BMAX; // set length of EOB code, if any + p = b; pidx = 0; + i = n; + do { + c[p[pidx]]++; // assume all entries <= BMAX + pidx++; + } while(--i > 0); + if(c[0] == n) { // null input--all zero length codes + this.root = null; + this.m = 0; + this.status = 0; + return; + } + + // Find minimum and maximum length, bound *m by those + for(j = 1; j <= this.BMAX; j++) + if(c[j] != 0) + break; + k = j; // minimum code length + if(mm < j) + mm = j; + for(i = this.BMAX; i != 0; i--) + if(c[i] != 0) + break; + g = i; // maximum code length + if(mm > i) + mm = i; + + // Adjust last length count to fill out codes, if needed + for(y = 1 << j; j < i; j++, y <<= 1) + if((y -= c[j]) < 0) { + this.status = 2; // bad input: more codes than bits + this.m = mm; + return; + } + if((y -= c[i]) < 0) { + this.status = 2; + this.m = mm; + return; + } + c[i] += y; + + // Generate starting offsets into the value table for each length + x[1] = j = 0; + p = c; + pidx = 1; + xp = 2; + while(--i > 0) // note that i == g from above + x[xp++] = (j += p[pidx++]); + + // Make a table of values in order of bit lengths + p = b; pidx = 0; + i = 0; + do { + if((j = p[pidx++]) != 0) + v[x[j]++] = i; + } 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 = v; pidx = 0; // grab values in bit order + h = -1; // no tables yet--level -1 + w = lx[0] = 0; // no bits decoded yet + q = null; // 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[pidx] + // make tables up to required level + while(k > w + lx[1 + h]) { + w += lx[1 + h]; // add bits already decoded + h++; + + // compute minimum size table less than or equal to *m bits + z = (z = g - w) > mm ? mm : z; // 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; + 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 + } + } + if(w + j > el && w < el) + j = el - w; // make EOB code end at table + z = 1 << j; // table entries for j-bit table + lx[1 + h] = j; // set table size in stack + + // allocate and link in new table + q = new Array(z); + for(o = 0; o < z; o++) { + q[o] = new zip_HuftNode(); + } + + if(tail == null) + tail = this.root = new zip_HuftList(); + else + tail = tail.next = new zip_HuftList(); + tail.next = null; + tail.list = q; + u[h] = q; // table starts after link + + /* connect to last table, if there is one */ + if(h > 0) { + x[h] = i; // save pattern for backing up + r.b = lx[h]; // bits to dump before this table + r.e = 16 + j; // bits in this table + r.t = q; // pointer to this table + j = (i & ((1 << w) - 1)) >> (w - lx[h]); + u[h-1][j].e = r.e; + u[h-1][j].b = r.b; + u[h-1][j].n = r.n; + u[h-1][j].t = r.t; + } + } + + // set up table entry in r + r.b = k - w; + if(pidx >= n) + r.e = 99; // out of values--invalid code + else if(p[pidx] < s) { + r.e = (p[pidx] < 256 ? 16 : 15); // 256 is end-of-block code + r.n = p[pidx++]; // simple code is just the value + } else { + r.e = e[p[pidx] - s]; // non-simple--look up in lists + r.n = d[p[pidx++] - s]; + } + + // fill code-like entries with r // + f = 1 << (k - w); + for(j = i >> w; j < z; j += f) { + q[j].e = r.e; + q[j].b = r.b; + q[j].n = r.n; + q[j].t = r.t; + } + + // 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 + while((i & ((1 << w) - 1)) != x[h]) { + w -= lx[h]; // don't need to update q + h--; + } + } + } + + /* return actual size of base table */ + this.m = lx[1]; + + /* Return true (1) if we were given an incomplete table */ + this.status = ((y != 0 && g != 1) ? 1 : 0); + } /* end of constructor */ + } + + + /* routines (inflate) */ + + function zip_GET_BYTE() { + if(zip_inflate_data.length == zip_inflate_pos) + return -1; + return zip_inflate_data.charCodeAt(zip_inflate_pos++) & 0xff; + } + + function zip_NEEDBITS(n) { + while(zip_bit_len < n) { + zip_bit_buf |= zip_GET_BYTE() << zip_bit_len; + zip_bit_len += 8; + } + } + + function zip_GETBITS(n) { + return zip_bit_buf & zip_MASK_BITS[n]; + } + + function zip_DUMPBITS(n) { + zip_bit_buf >>= n; + zip_bit_len -= n; + } + + function zip_inflate_codes(buff, off, size) { + /* inflate (decompress) the codes in a deflated (compressed) block. + Return an error code or zero if it all goes ok. */ + var e; // table entry flag/number of extra bits + var t; // (zip_HuftNode) pointer to table entry + var n; + + if(size == 0) + return 0; + + // inflate the coded data + n = 0; + for(;;) { // do until end of block + zip_NEEDBITS(zip_bl); + t = zip_tl.list[zip_GETBITS(zip_bl)]; + e = t.e; + while(e > 16) { + if(e == 99) + return -1; + zip_DUMPBITS(t.b); + e -= 16; + zip_NEEDBITS(e); + t = t.t[zip_GETBITS(e)]; + e = t.e; + } + zip_DUMPBITS(t.b); + + if(e == 16) { // then it's a literal + zip_wp &= zip_WSIZE - 1; + buff[off + n++] = zip_slide[zip_wp++] = t.n; + if(n == size) + return size; + continue; + } + + // exit if end of block + if(e == 15) + break; + + // it's an EOB or a length + + // get length of block to copy + zip_NEEDBITS(e); + zip_copy_leng = t.n + zip_GETBITS(e); + zip_DUMPBITS(e); + + // decode distance of block to copy + zip_NEEDBITS(zip_bd); + t = zip_td.list[zip_GETBITS(zip_bd)]; + e = t.e; + + while(e > 16) { + if(e == 99) + return -1; + zip_DUMPBITS(t.b); + e -= 16; + zip_NEEDBITS(e); + t = t.t[zip_GETBITS(e)]; + e = t.e; + } + zip_DUMPBITS(t.b); + zip_NEEDBITS(e); + zip_copy_dist = zip_wp - t.n - zip_GETBITS(e); + zip_DUMPBITS(e); + + // do the copy + while(zip_copy_leng > 0 && n < size) { + zip_copy_leng--; + zip_copy_dist &= zip_WSIZE - 1; + zip_wp &= zip_WSIZE - 1; + buff[off + n++] = zip_slide[zip_wp++] + = zip_slide[zip_copy_dist++]; + } + + if(n == size) + return size; + } + + zip_method = -1; // done + return n; + } + + function zip_inflate_stored(buff, off, size) { + /* "decompress" an inflated type 0 (stored) block. */ + var n; + + // go to byte boundary + n = zip_bit_len & 7; + zip_DUMPBITS(n); + + // get the length and its complement + zip_NEEDBITS(16); + n = zip_GETBITS(16); + zip_DUMPBITS(16); + zip_NEEDBITS(16); + if(n != ((~zip_bit_buf) & 0xffff)) + return -1; // error in compressed data + zip_DUMPBITS(16); + + // read and output the compressed data + zip_copy_leng = n; + + n = 0; + while(zip_copy_leng > 0 && n < size) { + zip_copy_leng--; + zip_wp &= zip_WSIZE - 1; + zip_NEEDBITS(8); + buff[off + n++] = zip_slide[zip_wp++] = + zip_GETBITS(8); + zip_DUMPBITS(8); + } + + if(zip_copy_leng == 0) + zip_method = -1; // done + return n; + } + + function zip_inflate_fixed(buff, off, size) { + /* decompress an inflated type 1 (fixed Huffman codes) block. We should + either replace this with a custom decoder, or at least precompute the + Huffman tables. */ + + // if first time, set up tables for fixed blocks + if(zip_fixed_tl == null) { + var i; // temporary variable + var l = new Array(288); // length list for huft_build + var h; // zip_HuftBuild + + // literal table + for(i = 0; i < 144; i++) + l[i] = 8; + for(; i < 256; i++) + l[i] = 9; + for(; i < 280; i++) + l[i] = 7; + for(; i < 288; i++) // make a complete, but wrong code set + l[i] = 8; + zip_fixed_bl = 7; + + h = new zip_HuftBuild(l, 288, 257, zip_cplens, zip_cplext, + zip_fixed_bl); + if(h.status != 0) { + alert("HufBuild error: "+h.status); + return -1; + } + zip_fixed_tl = h.root; + zip_fixed_bl = h.m; + + // distance table + for(i = 0; i < 30; i++) // make an incomplete code set + l[i] = 5; + zip_fixed_bd = 5; + + h = new zip_HuftBuild(l, 30, 0, zip_cpdist, zip_cpdext, zip_fixed_bd); + if(h.status > 1) { + zip_fixed_tl = null; + alert("HufBuild error: "+h.status); + return -1; + } + zip_fixed_td = h.root; + zip_fixed_bd = h.m; + } + + zip_tl = zip_fixed_tl; + zip_td = zip_fixed_td; + zip_bl = zip_fixed_bl; + zip_bd = zip_fixed_bd; + return zip_inflate_codes(buff, off, size); + } + + function zip_inflate_dynamic(buff, off, size) { + // decompress an inflated type 2 (dynamic Huffman codes) block. + var i; // temporary variables + var j; + var l; // last length + var n; // number of lengths to get + var t; // (zip_HuftNode) literal/length code table + var nb; // number of bit length codes + var nl; // number of literal/length codes + var nd; // number of distance codes + var ll = new Array(286+30); // literal/length and distance code lengths + var h; // (zip_HuftBuild) + + for(i = 0; i < ll.length; i++) + ll[i] = 0; + + // read in table lengths + zip_NEEDBITS(5); + nl = 257 + zip_GETBITS(5); // number of literal/length codes + zip_DUMPBITS(5); + zip_NEEDBITS(5); + nd = 1 + zip_GETBITS(5); // number of distance codes + zip_DUMPBITS(5); + zip_NEEDBITS(4); + nb = 4 + zip_GETBITS(4); // number of bit length codes + zip_DUMPBITS(4); + if(nl > 286 || nd > 30) + return -1; // bad lengths + + // read in bit-length-code lengths + for(j = 0; j < nb; j++) + { + zip_NEEDBITS(3); + ll[zip_border[j]] = zip_GETBITS(3); + zip_DUMPBITS(3); + } + for(; j < 19; j++) + ll[zip_border[j]] = 0; + + // build decoding table for trees--single level, 7 bit lookup + zip_bl = 7; + h = new zip_HuftBuild(ll, 19, 19, null, null, zip_bl); + if(h.status != 0) + return -1; // incomplete code set + + zip_tl = h.root; + zip_bl = h.m; + + // read in literal and distance code lengths + n = nl + nd; + i = l = 0; + while(i < n) { + zip_NEEDBITS(zip_bl); + t = zip_tl.list[zip_GETBITS(zip_bl)]; + j = t.b; + zip_DUMPBITS(j); + j = t.n; + if(j < 16) // length of code in bits (0..15) + ll[i++] = l = j; // save last length in l + else if(j == 16) { // repeat last length 3 to 6 times + zip_NEEDBITS(2); + j = 3 + zip_GETBITS(2); + zip_DUMPBITS(2); + if(i + j > n) + return -1; + while(j-- > 0) + ll[i++] = l; + } else if(j == 17) { // 3 to 10 zero length codes + zip_NEEDBITS(3); + j = 3 + zip_GETBITS(3); + zip_DUMPBITS(3); + if(i + j > n) + return -1; + while(j-- > 0) + ll[i++] = 0; + l = 0; + } else { // j == 18: 11 to 138 zero length codes + zip_NEEDBITS(7); + j = 11 + zip_GETBITS(7); + zip_DUMPBITS(7); + if(i + j > n) + return -1; + while(j-- > 0) + ll[i++] = 0; + l = 0; + } + } + + // build the decoding tables for literal/length and distance codes + zip_bl = zip_lbits; + h = new zip_HuftBuild(ll, nl, 257, zip_cplens, zip_cplext, zip_bl); + if(zip_bl == 0) // no literals or lengths + h.status = 1; + if(h.status != 0) { + if(h.status == 1) + ;// **incomplete literal tree** + return -1; // incomplete code set + } + zip_tl = h.root; + zip_bl = h.m; + + for(i = 0; i < nd; i++) + ll[i] = ll[i + nl]; + zip_bd = zip_dbits; + h = new zip_HuftBuild(ll, nd, 0, zip_cpdist, zip_cpdext, zip_bd); + zip_td = h.root; + zip_bd = h.m; + + if(zip_bd == 0 && nl > 257) { // lengths but no distances + // **incomplete distance tree** + return -1; + } + + if(h.status == 1) { + ;// **incomplete distance tree** + } + if(h.status != 0) + return -1; + + // decompress until an end-of-block code + return zip_inflate_codes(buff, off, size); + } + + function zip_inflate_start() { + var i; + + if(zip_slide == null) + zip_slide = new Array(2 * zip_WSIZE); + zip_wp = 0; + zip_bit_buf = 0; + zip_bit_len = 0; + zip_method = -1; + zip_eof = false; + zip_copy_leng = zip_copy_dist = 0; + zip_tl = null; + } + + function zip_inflate_internal(buff, off, size) { + // decompress an inflated entry + var n, i; + + n = 0; + while(n < size) { + if(zip_eof && zip_method == -1) + return n; + + if(zip_copy_leng > 0) { + if(zip_method != zip_STORED_BLOCK) { + // STATIC_TREES or DYN_TREES + while(zip_copy_leng > 0 && n < size) { + zip_copy_leng--; + zip_copy_dist &= zip_WSIZE - 1; + zip_wp &= zip_WSIZE - 1; + buff[off + n++] = zip_slide[zip_wp++] = + zip_slide[zip_copy_dist++]; + } + } else { + while(zip_copy_leng > 0 && n < size) { + zip_copy_leng--; + zip_wp &= zip_WSIZE - 1; + zip_NEEDBITS(8); + buff[off + n++] = zip_slide[zip_wp++] = zip_GETBITS(8); + zip_DUMPBITS(8); + } + if(zip_copy_leng == 0) + zip_method = -1; // done + } + if(n == size) + return n; + } + + if(zip_method == -1) { + if(zip_eof) + break; + + // read in last block bit + zip_NEEDBITS(1); + if(zip_GETBITS(1) != 0) + zip_eof = true; + zip_DUMPBITS(1); + + // read in block type + zip_NEEDBITS(2); + zip_method = zip_GETBITS(2); + zip_DUMPBITS(2); + zip_tl = null; + zip_copy_leng = 0; + } + + switch(zip_method) { + case 0: // zip_STORED_BLOCK + i = zip_inflate_stored(buff, off + n, size - n); + break; + + case 1: // zip_STATIC_TREES + if(zip_tl != null) + i = zip_inflate_codes(buff, off + n, size - n); + else + i = zip_inflate_fixed(buff, off + n, size - n); + break; + + case 2: // zip_DYN_TREES + if(zip_tl != null) + i = zip_inflate_codes(buff, off + n, size - n); + else + i = zip_inflate_dynamic(buff, off + n, size - n); + break; + + default: // error + i = -1; + break; + } + + if(i == -1) { + if(zip_eof) + return 0; + return -1; + } + n += i; + } + return n; + } + + + var JSInflate = {}; + if (typeof(module) == "object") { + module.exports = JSInflate; + var fs = require("fs"); + } else { + GLOBAL.JSInflate = JSInflate; + } + + JSInflate.inflate = function (data) { + var out, buff; + var i, j; + + zip_inflate_start(); + zip_inflate_data = data; + zip_inflate_pos = 0; + + buff = new Array(1024); + out = ""; + while((i = zip_inflate_internal(buff, 0, buff.length)) > 0) { + for(j = 0; j < i; j++) + out += String.fromCharCode(buff[j]); + } + zip_inflate_data = null; // G.C. + + return out; + }; + + function write_inflated_internal(ws, buff) { + var bytesInflated = zip_inflate_internal(buff, 0, buff.length); + if (bytesInflated > 0) { + var out = ""; + for(j = 0; j < bytesInflated; j++) { + out += String.fromCharCode(buff[j]); + } + ws.write(out); + } + return bytesInflated; + }; + + JSInflate.inflateStream = function(data, unzipFile, callback) { + var out, buff, bytesWritten; + + zip_inflate_start(); + zip_inflate_data = data; + zip_inflate_pos = 0; + bytesWritten = 0; + + var ws = fs.createWriteStream(unzipFile); + buff = new Array(1024); + var bytesInflated = 0; + + ws.on('drain', function() { + bytesInflated = write_inflated_internal(ws, buff); + if (bytesInflated > 0) { + bytesWritten += bytesInflated; + } else { + zip_inflate_data = null; + callback(bytesWritten); + } + }); + + bytesWritten += write_inflated_internal(ws, buff); + }; +}(this)); +\ No newline at end of file diff --git a/src/vendored/github.com/augustl/js-unzip/LICENSE.txt b/src/vendored/github.com/augustl/js-unzip/LICENSE.txt @@ -0,0 +1,20 @@ +Copyright (c) 2010 August Lilleaas + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +\ No newline at end of file diff --git a/src/vendored/github.com/augustl/js-unzip/README.textile.txt b/src/vendored/github.com/augustl/js-unzip/README.textile.txt @@ -0,0 +1,83 @@ +h2. JSUnzip + +A javascript library for reading the contents of zip files. + +NOTE: Does not uncompress/inflate files. Zip is a package format that can use many different compression methods. See "Working with <code>JSUnzip.ZipEntry</code>" below. + +<pre><code>var myZip = ... // Get it with an XHR request, HTML5 files, etc. +var unzipper = new JSUnzip(myZip); +unzipper.isZipFile(); // true or false + +unzipper.readEntries(); // Creates "entries" +unzipper.entries; // Array of JSUnzip.ZipEntry objects. +</code></pre> + +The test suite runs on Chrome 4, FireFox 3.6, IE7, Opera 10 and Safari 4.0.4. [TODO: Run tests on more browsers.] + +h2. Download + +"http://github.com/downloads/augustl/js-unzip/js-unzip.min.js":http://github.com/downloads/augustl/js-unzip/js-unzip.min.js + +h2. Working with <code>JSUnzip.ZipEntry</code> objects + +After <code>readEntries</code> is called, an array of <code>JSUnzip.ZipEntry</code> objects is created, one per file in the Zip archive. + +<pre><code>entry = myZip.entries[0]; + +// Attributes +entry.fileName; // The file name of the entry. Contains the full path. + // Examples: + // "foo.txt" + // "directory/bar.jpg" +entry.data; // The raw compressed data +entry.compressionMethod; // Number representing compression method. + // 1: No compression. File can be used as-is. + // 8: DEFLATE. The most common compression method. + // Use a inflate algorithm to uncompress, such + // as http://github.com/augustl/js-inflate/ +entry.compressedSize; // The size of the commpressed data +entry.uncompressedSize; // The size of the data when it's uncompressed +entry.signature; // The magic number used to determine if it is in fact + // a zip file. +entry.versionNeeded; // Zip specification version needed to work with the file. +entry.bitFlag; // Flag for various states + +// Functions (mostly for internal use) +entry.isEncrypted(); +entry.isUsingUtf8(); +entry.isUzingZip64(); // Zip64 is for 4gb+ files. Not supported by this lib. +</code></pre> + +See "http://www.pkware.com/documents/casestudies/APPNOTE.TXT":http://www.pkware.com/documents/casestudies/APPNOTE.TXT for more information about the Zip format, such as all the compression methods. + +h2. Uncompressing with JSInflate + +Almost all Zip files are compressed with the deflate algorithm. You can use "JSInflate":http://github.com/augustl/js-inflate to uncompress these Zips. + +<pre><code>var blob = ...; // A HTML5 binary file, for example. +var unzipper = new JSUnzip(blob); +if (unzipper.isZipFile()) { + + unzipper.readEntries(); + + for (var i = 0; i < unzipper.entries.length; i++) { + var entry = unzipper.entries[i]; + if (entry.compressionMethod === 0) { + // Uncompressed + var uncompressed = entry.data; + } else if (entry.compressionMethod === 8) { + // Deflated + var uncompressed = JSInflate.inflate(entry.data); + } + } +}</code></pre> + +h2. Credits + +* Jacob Seidelin for his "JavaScript EXIF Reader":http://blog.nihilogic.dk/2008/05/reading-exif-data-with-javascript.html. +* Jonas Höglund for his cute little "zip parser":http://etc.firefly.nu/js/zip/zipParser.js. +* "Cheeso" for his "js zip library":http://cheeso.members.winisp.net/srcview.aspx?dir=js-unzip&file=js-zip.zip. + +h2. About + +Written by August Lilleaas <august.lilleaas@gmail.com>. Licensed under the MIT license. diff --git a/src/vendored/github.com/dankogai/js-deflate/rawinflate.js b/src/vendored/github.com/dankogai/js-deflate/rawinflate.js @@ -1,755 +0,0 @@ -/* - * $Id: rawinflate.js,v 0.4 2014/03/01 21:59:08 dankogai Exp dankogai $ - * - * GNU General Public License, version 2 (GPL-2.0) - * http://opensource.org/licenses/GPL-2.0 - * original: - * http://www.onicos.com/staff/iz/amuse/javascript/expert/inflate.txt - */ - -(function(ctx){ - -/* Copyright (C) 1999 Masanao Izumo <iz@onicos.co.jp> - * Version: 1.0.0.1 - * LastModified: Dec 25 1999 - */ - -/* Interface: - * data = zip_inflate(src); - */ - -/* constant parameters */ -var zip_WSIZE = 32768; // Sliding Window size -var zip_STORED_BLOCK = 0; -var zip_STATIC_TREES = 1; -var zip_DYN_TREES = 2; - -/* for inflate */ -var zip_lbits = 9; // bits in base literal/length lookup table -var zip_dbits = 6; // bits in base distance lookup table -var zip_INBUFSIZ = 32768; // Input buffer size -var zip_INBUF_EXTRA = 64; // Extra buffer - -/* variables (inflate) */ -var zip_slide; -var zip_wp; // current position in slide -var zip_fixed_tl = null; // inflate static -var zip_fixed_td; // inflate static -var zip_fixed_bl, zip_fixed_bd; // inflate static -var zip_bit_buf; // bit buffer -var zip_bit_len; // bits in bit buffer -var zip_method; -var zip_eof; -var zip_copy_leng; -var zip_copy_dist; -var zip_tl, zip_td; // literal/length and distance decoder tables -var zip_bl, zip_bd; // number of bits decoded by tl and td - -var zip_inflate_data; -var zip_inflate_pos; - - -/* constant tables (inflate) */ -var zip_MASK_BITS = new Array( - 0x0000, - 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff, - 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff); -// Tables for deflate from PKZIP's appnote.txt. -var zip_cplens = new Array( // 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); -/* note: see note #13 above about the 258 in this list. */ -var zip_cplext = new Array( // 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, 99, 99); // 99==invalid -var zip_cpdist = new Array( // 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 zip_cpdext = new Array( // 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); -var zip_border = new Array( // 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); -/* objects (inflate) */ - -var zip_HuftList = function() { - this.next = null; - this.list = null; -} - -var zip_HuftNode = function() { - this.e = 0; // number of extra bits or operation - this.b = 0; // number of bits in this code or subcode - - // union - this.n = 0; // literal, length base, or distance base - this.t = null; // (zip_HuftNode) pointer to next level of table -} - -var zip_HuftBuild = function(b, // code lengths in bits (all assumed <= BMAX) - n, // number of codes (assumed <= N_MAX) - 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 - mm // maximum lookup bits - ) { - this.BMAX = 16; // maximum bit length of any code - this.N_MAX = 288; // maximum number of codes in any set - this.status = 0; // 0: success, 1: incomplete table, 2: bad input - this.root = null; // (zip_HuftList) starting table - this.m = 0; // maximum lookup bits, returns actual - -/* Given a list of code lengths and a maximum table size, make a set of - tables to decode that set of codes. Return zero on success, one if - the given code set is incomplete (the tables are still built in this - case), two if the input is invalid (all zero length codes or an - oversubscribed set of lengths), and three if not enough memory. - The code with value 256 is special, and the tables are constructed - so that no bits beyond that code are fetched when that code is - decoded. */ - { - var a; // counter for codes of length k - var c = new Array(this.BMAX+1); // bit length count table - var el; // length of EOB code (value 256) - 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 lx = new Array(this.BMAX+1); // stack of bits per table - var p; // pointer into c[], b[], or v[] - var pidx; // index of p - var q; // (zip_HuftNode) points to current table - var r = new zip_HuftNode(); // table entry for structure assignment - var u = new Array(this.BMAX); // zip_HuftNode[BMAX][] table stack - var v = new Array(this.N_MAX); // values in order of bit length - var w; - var x = new Array(this.BMAX+1);// bit offsets, then code stack - var xp; // pointer into x or c - var y; // number of dummy codes added - var z; // number of entries in current table - var o; - var tail; // (zip_HuftList) - - tail = this.root = null; - for(i = 0; i < c.length; i++) - c[i] = 0; - for(i = 0; i < lx.length; i++) - lx[i] = 0; - for(i = 0; i < u.length; i++) - u[i] = null; - for(i = 0; i < v.length; i++) - v[i] = 0; - for(i = 0; i < x.length; i++) - x[i] = 0; - - // Generate counts for each bit length - el = n > 256 ? b[256] : this.BMAX; // set length of EOB code, if any - p = b; pidx = 0; - i = n; - do { - c[p[pidx]]++; // assume all entries <= BMAX - pidx++; - } while(--i > 0); - if(c[0] == n) { // null input--all zero length codes - this.root = null; - this.m = 0; - this.status = 0; - return; - } - - // Find minimum and maximum length, bound *m by those - for(j = 1; j <= this.BMAX; j++) - if(c[j] != 0) - break; - k = j; // minimum code length - if(mm < j) - mm = j; - for(i = this.BMAX; i != 0; i--) - if(c[i] != 0) - break; - g = i; // maximum code length - if(mm > i) - mm = i; - - // Adjust last length count to fill out codes, if needed - for(y = 1 << j; j < i; j++, y <<= 1) - if((y -= c[j]) < 0) { - this.status = 2; // bad input: more codes than bits - this.m = mm; - return; - } - if((y -= c[i]) < 0) { - this.status = 2; - this.m = mm; - return; - } - c[i] += y; - - // Generate starting offsets into the value table for each length - x[1] = j = 0; - p = c; - pidx = 1; - xp = 2; - while(--i > 0) // note that i == g from above - x[xp++] = (j += p[pidx++]); - - // Make a table of values in order of bit lengths - p = b; pidx = 0; - i = 0; - do { - if((j = p[pidx++]) != 0) - v[x[j]++] = i; - } 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 = v; pidx = 0; // grab values in bit order - h = -1; // no tables yet--level -1 - w = lx[0] = 0; // no bits decoded yet - q = null; // 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[pidx] - // make tables up to required level - while(k > w + lx[1 + h]) { - w += lx[1 + h]; // add bits already decoded - h++; - - // compute minimum size table less than or equal to *m bits - z = (z = g - w) > mm ? mm : z; // 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; - 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 - } - } - if(w + j > el && w < el) - j = el - w; // make EOB code end at table - z = 1 << j; // table entries for j-bit table - lx[1 + h] = j; // set table size in stack - - // allocate and link in new table - q = new Array(z); - for(o = 0; o < z; o++) { - q[o] = new zip_HuftNode(); - } - - if(tail == null) - tail = this.root = new zip_HuftList(); - else - tail = tail.next = new zip_HuftList(); - tail.next = null; - tail.list = q; - u[h] = q; // table starts after link - - /* connect to last table, if there is one */ - if(h > 0) { - x[h] = i; // save pattern for backing up - r.b = lx[h]; // bits to dump before this table - r.e = 16 + j; // bits in this table - r.t = q; // pointer to this table - j = (i & ((1 << w) - 1)) >> (w - lx[h]); - u[h-1][j].e = r.e; - u[h-1][j].b = r.b; - u[h-1][j].n = r.n; - u[h-1][j].t = r.t; - } - } - - // set up table entry in r - r.b = k - w; - if(pidx >= n) - r.e = 99; // out of values--invalid code - else if(p[pidx] < s) { - r.e = (p[pidx] < 256 ? 16 : 15); // 256 is end-of-block code - r.n = p[pidx++]; // simple code is just the value - } else { - r.e = e[p[pidx] - s]; // non-simple--look up in lists - r.n = d[p[pidx++] - s]; - } - - // fill code-like entries with r // - f = 1 << (k - w); - for(j = i >> w; j < z; j += f) { - q[j].e = r.e; - q[j].b = r.b; - q[j].n = r.n; - q[j].t = r.t; - } - - // 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 - while((i & ((1 << w) - 1)) != x[h]) { - w -= lx[h]; // don't need to update q - h--; - } - } - } - - /* return actual size of base table */ - this.m = lx[1]; - - /* Return true (1) if we were given an incomplete table */ - this.status = ((y != 0 && g != 1) ? 1 : 0); - } /* end of constructor */ -} - - -/* routines (inflate) */ - -var zip_GET_BYTE = function() { - if(zip_inflate_data.length == zip_inflate_pos) - return -1; - return zip_inflate_data.charCodeAt(zip_inflate_pos++) & 0xff; -} - -var zip_NEEDBITS = function(n) { - while(zip_bit_len < n) { - zip_bit_buf |= zip_GET_BYTE() << zip_bit_len; - zip_bit_len += 8; - } -} - -var zip_GETBITS = function(n) { - return zip_bit_buf & zip_MASK_BITS[n]; -} - -var zip_DUMPBITS = function(n) { - zip_bit_buf >>= n; - zip_bit_len -= n; -} - -var zip_inflate_codes = function(buff, off, size) { - /* inflate (decompress) the codes in a deflated (compressed) block. - Return an error code or zero if it all goes ok. */ - var e; // table entry flag/number of extra bits - var t; // (zip_HuftNode) pointer to table entry - var n; - - if(size == 0) - return 0; - - // inflate the coded data - n = 0; - for(;;) { // do until end of block - zip_NEEDBITS(zip_bl); - t = zip_tl.list[zip_GETBITS(zip_bl)]; - e = t.e; - while(e > 16) { - if(e == 99) - return -1; - zip_DUMPBITS(t.b); - e -= 16; - zip_NEEDBITS(e); - t = t.t[zip_GETBITS(e)]; - e = t.e; - } - zip_DUMPBITS(t.b); - - if(e == 16) { // then it's a literal - zip_wp &= zip_WSIZE - 1; - buff[off + n++] = zip_slide[zip_wp++] = t.n; - if(n == size) - return size; - continue; - } - - // exit if end of block - if(e == 15) - break; - - // it's an EOB or a length - - // get length of block to copy - zip_NEEDBITS(e); - zip_copy_leng = t.n + zip_GETBITS(e); - zip_DUMPBITS(e); - - // decode distance of block to copy - zip_NEEDBITS(zip_bd); - t = zip_td.list[zip_GETBITS(zip_bd)]; - e = t.e; - - while(e > 16) { - if(e == 99) - return -1; - zip_DUMPBITS(t.b); - e -= 16; - zip_NEEDBITS(e); - t = t.t[zip_GETBITS(e)]; - e = t.e; - } - zip_DUMPBITS(t.b); - zip_NEEDBITS(e); - zip_copy_dist = zip_wp - t.n - zip_GETBITS(e); - zip_DUMPBITS(e); - - // do the copy - while(zip_copy_leng > 0 && n < size) { - zip_copy_leng--; - zip_copy_dist &= zip_WSIZE - 1; - zip_wp &= zip_WSIZE - 1; - buff[off + n++] = zip_slide[zip_wp++] - = zip_slide[zip_copy_dist++]; - } - - if(n == size) - return size; - } - - zip_method = -1; // done - return n; -} - -var zip_inflate_stored = function(buff, off, size) { - /* "decompress" an inflated type 0 (stored) block. */ - var n; - - // go to byte boundary - n = zip_bit_len & 7; - zip_DUMPBITS(n); - - // get the length and its complement - zip_NEEDBITS(16); - n = zip_GETBITS(16); - zip_DUMPBITS(16); - zip_NEEDBITS(16); - if(n != ((~zip_bit_buf) & 0xffff)) - return -1; // error in compressed data - zip_DUMPBITS(16); - - // read and output the compressed data - zip_copy_leng = n; - - n = 0; - while(zip_copy_leng > 0 && n < size) { - zip_copy_leng--; - zip_wp &= zip_WSIZE - 1; - zip_NEEDBITS(8); - buff[off + n++] = zip_slide[zip_wp++] = - zip_GETBITS(8); - zip_DUMPBITS(8); - } - - if(zip_copy_leng == 0) - zip_method = -1; // done - return n; -} - -var zip_inflate_fixed = function(buff, off, size) { - /* decompress an inflated type 1 (fixed Huffman codes) block. We should - either replace this with a custom decoder, or at least precompute the - Huffman tables. */ - - // if first time, set up tables for fixed blocks - if(zip_fixed_tl == null) { - var i; // temporary variable - var l = new Array(288); // length list for huft_build - var h; // zip_HuftBuild - - // literal table - for(i = 0; i < 144; i++) - l[i] = 8; - for(; i < 256; i++) - l[i] = 9; - for(; i < 280; i++) - l[i] = 7; - for(; i < 288; i++) // make a complete, but wrong code set - l[i] = 8; - zip_fixed_bl = 7; - - h = new zip_HuftBuild(l, 288, 257, zip_cplens, zip_cplext, - zip_fixed_bl); - if(h.status != 0) { - alert("HufBuild error: "+h.status); - return -1; - } - zip_fixed_tl = h.root; - zip_fixed_bl = h.m; - - // distance table - for(i = 0; i < 30; i++) // make an incomplete code set - l[i] = 5; - zip_fixed_bd = 5; - - h = new zip_HuftBuild(l, 30, 0, zip_cpdist, zip_cpdext, zip_fixed_bd); - if(h.status > 1) { - zip_fixed_tl = null; - alert("HufBuild error: "+h.status); - return -1; - } - zip_fixed_td = h.root; - zip_fixed_bd = h.m; - } - - zip_tl = zip_fixed_tl; - zip_td = zip_fixed_td; - zip_bl = zip_fixed_bl; - zip_bd = zip_fixed_bd; - return zip_inflate_codes(buff, off, size); -} - -var zip_inflate_dynamic = function(buff, off, size) { - // decompress an inflated type 2 (dynamic Huffman codes) block. - var i; // temporary variables - var j; - var l; // last length - var n; // number of lengths to get - var t; // (zip_HuftNode) literal/length code table - var nb; // number of bit length codes - var nl; // number of literal/length codes - var nd; // number of distance codes - var ll = new Array(286+30); // literal/length and distance code lengths - var h; // (zip_HuftBuild) - - for(i = 0; i < ll.length; i++) - ll[i] = 0; - - // read in table lengths - zip_NEEDBITS(5); - nl = 257 + zip_GETBITS(5); // number of literal/length codes - zip_DUMPBITS(5); - zip_NEEDBITS(5); - nd = 1 + zip_GETBITS(5); // number of distance codes - zip_DUMPBITS(5); - zip_NEEDBITS(4); - nb = 4 + zip_GETBITS(4); // number of bit length codes - zip_DUMPBITS(4); - if(nl > 286 || nd > 30) - return -1; // bad lengths - - // read in bit-length-code lengths - for(j = 0; j < nb; j++) - { - zip_NEEDBITS(3); - ll[zip_border[j]] = zip_GETBITS(3); - zip_DUMPBITS(3); - } - for(; j < 19; j++) - ll[zip_border[j]] = 0; - - // build decoding table for trees--single level, 7 bit lookup - zip_bl = 7; - h = new zip_HuftBuild(ll, 19, 19, null, null, zip_bl); - if(h.status != 0) - return -1; // incomplete code set - - zip_tl = h.root; - zip_bl = h.m; - - // read in literal and distance code lengths - n = nl + nd; - i = l = 0; - while(i < n) { - zip_NEEDBITS(zip_bl); - t = zip_tl.list[zip_GETBITS(zip_bl)]; - j = t.b; - zip_DUMPBITS(j); - j = t.n; - if(j < 16) // length of code in bits (0..15) - ll[i++] = l = j; // save last length in l - else if(j == 16) { // repeat last length 3 to 6 times - zip_NEEDBITS(2); - j = 3 + zip_GETBITS(2); - zip_DUMPBITS(2); - if(i + j > n) - return -1; - while(j-- > 0) - ll[i++] = l; - } else if(j == 17) { // 3 to 10 zero length codes - zip_NEEDBITS(3); - j = 3 + zip_GETBITS(3); - zip_DUMPBITS(3); - if(i + j > n) - return -1; - while(j-- > 0) - ll[i++] = 0; - l = 0; - } else { // j == 18: 11 to 138 zero length codes - zip_NEEDBITS(7); - j = 11 + zip_GETBITS(7); - zip_DUMPBITS(7); - if(i + j > n) - return -1; - while(j-- > 0) - ll[i++] = 0; - l = 0; - } - } - - // build the decoding tables for literal/length and distance codes - zip_bl = zip_lbits; - h = new zip_HuftBuild(ll, nl, 257, zip_cplens, zip_cplext, zip_bl); - if(zip_bl == 0) // no literals or lengths - h.status = 1; - if(h.status != 0) { - if(h.status == 1) - ;// **incomplete literal tree** - return -1; // incomplete code set - } - zip_tl = h.root; - zip_bl = h.m; - - for(i = 0; i < nd; i++) - ll[i] = ll[i + nl]; - zip_bd = zip_dbits; - h = new zip_HuftBuild(ll, nd, 0, zip_cpdist, zip_cpdext, zip_bd); - zip_td = h.root; - zip_bd = h.m; - - if(zip_bd == 0 && nl > 257) { // lengths but no distances - // **incomplete distance tree** - return -1; - } - - if(h.status == 1) { - ;// **incomplete distance tree** - } - if(h.status != 0) - return -1; - - // decompress until an end-of-block code - return zip_inflate_codes(buff, off, size); -} - -var zip_inflate_start = function() { - var i; - - if(zip_slide == null) - zip_slide = new Array(2 * zip_WSIZE); - zip_wp = 0; - zip_bit_buf = 0; - zip_bit_len = 0; - zip_method = -1; - zip_eof = false; - zip_copy_leng = zip_copy_dist = 0; - zip_tl = null; -} - -var zip_inflate_internal = function(buff, off, size) { - // decompress an inflated entry - var n, i; - - n = 0; - while(n < size) { - if(zip_eof && zip_method == -1) - return n; - - if(zip_copy_leng > 0) { - if(zip_method != zip_STORED_BLOCK) { - // STATIC_TREES or DYN_TREES - while(zip_copy_leng > 0 && n < size) { - zip_copy_leng--; - zip_copy_dist &= zip_WSIZE - 1; - zip_wp &= zip_WSIZE - 1; - buff[off + n++] = zip_slide[zip_wp++] = - zip_slide[zip_copy_dist++]; - } - } else { - while(zip_copy_leng > 0 && n < size) { - zip_copy_leng--; - zip_wp &= zip_WSIZE - 1; - zip_NEEDBITS(8); - buff[off + n++] = zip_slide[zip_wp++] = zip_GETBITS(8); - zip_DUMPBITS(8); - } - if(zip_copy_leng == 0) - zip_method = -1; // done - } - if(n == size) - return n; - } - - if(zip_method == -1) { - if(zip_eof) - break; - - // read in last block bit - zip_NEEDBITS(1); - if(zip_GETBITS(1) != 0) - zip_eof = true; - zip_DUMPBITS(1); - - // read in block type - zip_NEEDBITS(2); - zip_method = zip_GETBITS(2); - zip_DUMPBITS(2); - zip_tl = null; - zip_copy_leng = 0; - } - - switch(zip_method) { - case 0: // zip_STORED_BLOCK - i = zip_inflate_stored(buff, off + n, size - n); - break; - - case 1: // zip_STATIC_TREES - if(zip_tl != null) - i = zip_inflate_codes(buff, off + n, size - n); - else - i = zip_inflate_fixed(buff, off + n, size - n); - break; - - case 2: // zip_DYN_TREES - if(zip_tl != null) - i = zip_inflate_codes(buff, off + n, size - n); - else - i = zip_inflate_dynamic(buff, off + n, size - n); - break; - - default: // error - i = -1; - break; - } - - if(i == -1) { - if(zip_eof) - return 0; - return -1; - } - n += i; - } - return n; -} - -var zip_inflate = function(str) { - var i, j; - - zip_inflate_start(); - zip_inflate_data = str; - zip_inflate_pos = 0; - - var buff = new Array(1024); - var aout = []; - while((i = zip_inflate_internal(buff, 0, buff.length)) > 0) { - var cbuf = new Array(i); - for(j = 0; j < i; j++){ - cbuf[j] = String.fromCharCode(buff[j]); - } - aout[aout.length] = cbuf.join(""); - } - zip_inflate_data = null; // G.C. - return aout.join(""); -} - -if (! ctx.RawDeflate) ctx.RawDeflate = {}; -ctx.RawDeflate.inflate = zip_inflate; - -})(this);