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mdares
2025-12-02 16:27:21 +00:00
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node_modules/cfb/dist/LICENSE generated vendored Normal file
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Copyright (C) 2013-present SheetJS
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

880
node_modules/cfb/dist/cfb.js generated vendored Normal file
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/* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com */
/* vim: set ts=2: */
/*jshint eqnull:true */
/*exported CFB */
/*global module, require:false, process:false, Buffer:false, Uint8Array:false */
var Base64 = (function make_b64(){
var map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
return {
encode: function(input) {
var o = "";
var c1=0, c2=0, c3=0, e1=0, e2=0, e3=0, e4=0;
for(var i = 0; i < input.length; ) {
c1 = input.charCodeAt(i++);
e1 = (c1 >> 2);
c2 = input.charCodeAt(i++);
e2 = ((c1 & 3) << 4) | (c2 >> 4);
c3 = input.charCodeAt(i++);
e3 = ((c2 & 15) << 2) | (c3 >> 6);
e4 = (c3 & 63);
if (isNaN(c2)) { e3 = e4 = 64; }
else if (isNaN(c3)) { e4 = 64; }
o += map.charAt(e1) + map.charAt(e2) + map.charAt(e3) + map.charAt(e4);
}
return o;
},
decode: function b64_decode(input) {
var o = "";
var c1=0, c2=0, c3=0, e1=0, e2=0, e3=0, e4=0;
input = input.replace(/[^\w\+\/\=]/g, "");
for(var i = 0; i < input.length;) {
e1 = map.indexOf(input.charAt(i++));
e2 = map.indexOf(input.charAt(i++));
c1 = (e1 << 2) | (e2 >> 4);
o += String.fromCharCode(c1);
e3 = map.indexOf(input.charAt(i++));
c2 = ((e2 & 15) << 4) | (e3 >> 2);
if (e3 !== 64) { o += String.fromCharCode(c2); }
e4 = map.indexOf(input.charAt(i++));
c3 = ((e3 & 3) << 6) | e4;
if (e4 !== 64) { o += String.fromCharCode(c3); }
}
return o;
}
};
})();
var has_buf = (typeof Buffer !== 'undefined' && typeof process !== 'undefined' && typeof process.versions !== 'undefined' && process.versions.node);
var Buffer_from = function(){};
if(typeof Buffer !== 'undefined') {
var nbfs = !Buffer.from;
if(!nbfs) try { Buffer.from("foo", "utf8"); } catch(e) { nbfs = true; }
Buffer_from = nbfs ? function(buf, enc) { return (enc) ? new Buffer(buf, enc) : new Buffer(buf); } : Buffer.from.bind(Buffer);
// $FlowIgnore
if(!Buffer.alloc) Buffer.alloc = function(n) { return new Buffer(n); };
}
function new_raw_buf(len) {
/* jshint -W056 */
return has_buf ? Buffer.alloc(len) : new Array(len);
/* jshint +W056 */
}
var s2a = function s2a(s) {
if(has_buf) return Buffer.from(s, "binary");
return s.split("").map(function(x){ return x.charCodeAt(0) & 0xff; });
};
var chr0 = /\u0000/g, chr1 = /[\u0001-\u0006]/g;
var __toBuffer = function(bufs) { var x = []; for(var i = 0; i < bufs[0].length; ++i) { x.push.apply(x, bufs[0][i]); } return x; };
var ___toBuffer = __toBuffer;
var __utf16le = function(b,s,e) { var ss=[]; for(var i=s; i<e; i+=2) ss.push(String.fromCharCode(__readUInt16LE(b,i))); return ss.join("").replace(chr0,''); };
var ___utf16le = __utf16le;
var __hexlify = function(b,s,l) { var ss=[]; for(var i=s; i<s+l; ++i) ss.push(("0" + b[i].toString(16)).slice(-2)); return ss.join(""); };
var ___hexlify = __hexlify;
var __bconcat = function(bufs) {
if(Array.isArray(bufs[0])) return [].concat.apply([], bufs);
var maxlen = 0, i = 0;
for(i = 0; i < bufs.length; ++i) maxlen += bufs[i].length;
var o = new Uint8Array(maxlen);
for(i = 0, maxlen = 0; i < bufs.length; maxlen += bufs[i].length, ++i) o.set(bufs[i], maxlen);
return o;
};
var bconcat = __bconcat;
if(has_buf) {
__utf16le = function(b,s,e) {
if(!Buffer.isBuffer(b)) return ___utf16le(b,s,e);
return b.toString('utf16le',s,e).replace(chr0,'')/*.replace(chr1,'!')*/;
};
__hexlify = function(b,s,l) { return Buffer.isBuffer(b) ? b.toString('hex',s,s+l) : ___hexlify(b,s,l); };
__toBuffer = function(bufs) { return (bufs[0].length > 0 && Buffer.isBuffer(bufs[0][0])) ? Buffer.concat((bufs[0])) : ___toBuffer(bufs);};
// $FlowIgnore
s2a = function(s) { return Buffer_from(s, "binary"); };
bconcat = function(bufs) { return Buffer.isBuffer(bufs[0]) ? Buffer.concat(bufs) : __bconcat(bufs); };
}
var __readUInt8 = function(b, idx) { return b[idx]; };
var __readUInt16LE = function(b, idx) { return b[idx+1]*(1<<8)+b[idx]; };
var __readInt16LE = function(b, idx) { var u = b[idx+1]*(1<<8)+b[idx]; return (u < 0x8000) ? u : (0xffff - u + 1) * -1; };
var __readUInt32LE = function(b, idx) { return b[idx+3]*(1<<24)+(b[idx+2]<<16)+(b[idx+1]<<8)+b[idx]; };
var __readInt32LE = function(b, idx) { return (b[idx+3]<<24)+(b[idx+2]<<16)+(b[idx+1]<<8)+b[idx]; };
function ReadShift(size, t) {
var oI, oS, type = 0;
switch(size) {
case 1: oI = __readUInt8(this, this.l); break;
case 2: oI = (t !== 'i' ? __readUInt16LE : __readInt16LE)(this, this.l); break;
case 4: oI = __readInt32LE(this, this.l); break;
case 16: type = 2; oS = __hexlify(this, this.l, size);
}
this.l += size; if(type === 0) return oI; return oS;
}
var __writeUInt32LE = function(b, val, idx) { b[idx] = (val & 0xFF); b[idx+1] = ((val >>> 8) & 0xFF); b[idx+2] = ((val >>> 16) & 0xFF); b[idx+3] = ((val >>> 24) & 0xFF); };
var __writeInt32LE = function(b, val, idx) { b[idx] = (val & 0xFF); b[idx+1] = ((val >> 8) & 0xFF); b[idx+2] = ((val >> 16) & 0xFF); b[idx+3] = ((val >> 24) & 0xFF); };
function WriteShift(t, val, f) {
var size = 0, i = 0;
switch(f) {
case "hex": for(; i < t; ++i) {
this[this.l++] = parseInt(val.slice(2*i, 2*i+2), 16)||0;
} return this;
case "utf16le":
var end = this.l + t;
for(i = 0; i < Math.min(val.length, t); ++i) {
var cc = val.charCodeAt(i);
this[this.l++] = cc & 0xff;
this[this.l++] = cc >> 8;
}
while(this.l < end) this[this.l++] = 0;
return this;
}
switch(t) {
case 1: size = 1; this[this.l] = val&0xFF; break;
case 2: size = 2; this[this.l] = val&0xFF; val >>>= 8; this[this.l+1] = val&0xFF; break;
case 4: size = 4; __writeUInt32LE(this, val, this.l); break;
case -4: size = 4; __writeInt32LE(this, val, this.l); break;
}
this.l += size; return this;
}
function CheckField(hexstr, fld) {
var m = __hexlify(this,this.l,hexstr.length>>1);
if(m !== hexstr) throw new Error(fld + 'Expected ' + hexstr + ' saw ' + m);
this.l += hexstr.length>>1;
}
function prep_blob(blob, pos) {
blob.l = pos;
blob.read_shift = ReadShift;
blob.chk = CheckField;
blob.write_shift = WriteShift;
}
function new_buf(sz) {
var o = (new_raw_buf(sz));
prep_blob(o, 0);
return o;
}
/* [MS-CFB] v20171201 */
var CFB = (function _CFB(){
var exports = {};
exports.version = '1.0.8';
/* [MS-CFB] 2.6.4 */
function namecmp(l, r) {
var L = l.split("/"), R = r.split("/");
for(var i = 0, c = 0, Z = Math.min(L.length, R.length); i < Z; ++i) {
if((c = L[i].length - R[i].length)) return c;
if(L[i] != R[i]) return L[i] < R[i] ? -1 : 1;
}
return L.length - R.length;
}
function dirname(p) {
if(p.charAt(p.length - 1) == "/") return (p.slice(0,-1).indexOf("/") === -1) ? p : dirname(p.slice(0, -1));
var c = p.lastIndexOf("/");
return (c === -1) ? p : p.slice(0, c+1);
}
function filename(p) {
if(p.charAt(p.length - 1) == "/") return filename(p.slice(0, -1));
var c = p.lastIndexOf("/");
return (c === -1) ? p : p.slice(c+1);
}
var fs;
function get_fs() { return fs || (fs = require('fs')); }
function parse(file, options) {
if(file.length < 512) throw new Error("CFB file size " + file.length + " < 512");
var mver = 3;
var ssz = 512;
var nmfs = 0; // number of mini FAT sectors
var difat_sec_cnt = 0;
var dir_start = 0;
var minifat_start = 0;
var difat_start = 0;
var fat_addrs = []; // locations of FAT sectors
/* [MS-CFB] 2.2 Compound File Header */
var blob = file.slice(0,512);
prep_blob(blob, 0);
/* major version */
var mv = check_get_mver(blob);
mver = mv[0];
switch(mver) {
case 3: ssz = 512; break; case 4: ssz = 4096; break;
default: throw new Error("Major Version: Expected 3 or 4 saw " + mver);
}
/* reprocess header */
if(ssz !== 512) { blob = file.slice(0,ssz); prep_blob(blob, 28 /* blob.l */); }
/* Save header for final object */
var header = file.slice(0,ssz);
check_shifts(blob, mver);
// Number of Directory Sectors
var dir_cnt = blob.read_shift(4, 'i');
if(mver === 3 && dir_cnt !== 0) throw new Error('# Directory Sectors: Expected 0 saw ' + dir_cnt);
// Number of FAT Sectors
blob.l += 4;
// First Directory Sector Location
dir_start = blob.read_shift(4, 'i');
// Transaction Signature
blob.l += 4;
// Mini Stream Cutoff Size
blob.chk('00100000', 'Mini Stream Cutoff Size: ');
// First Mini FAT Sector Location
minifat_start = blob.read_shift(4, 'i');
// Number of Mini FAT Sectors
nmfs = blob.read_shift(4, 'i');
// First DIFAT sector location
difat_start = blob.read_shift(4, 'i');
// Number of DIFAT Sectors
difat_sec_cnt = blob.read_shift(4, 'i');
// Grab FAT Sector Locations
for(var q = -1, j = 0; j < 109; ++j) { /* 109 = (512 - blob.l)>>>2; */
q = blob.read_shift(4, 'i');
if(q<0) break;
fat_addrs[j] = q;
}
/** Break the file up into sectors */
var sectors = sectorify(file, ssz);
sleuth_fat(difat_start, difat_sec_cnt, sectors, ssz, fat_addrs);
/** Chains */
var sector_list = make_sector_list(sectors, dir_start, fat_addrs, ssz);
sector_list[dir_start].name = "!Directory";
if(nmfs > 0 && minifat_start !== ENDOFCHAIN) sector_list[minifat_start].name = "!MiniFAT";
sector_list[fat_addrs[0]].name = "!FAT";
sector_list.fat_addrs = fat_addrs;
sector_list.ssz = ssz;
/* [MS-CFB] 2.6.1 Compound File Directory Entry */
var files = {}, Paths = [], FileIndex = [], FullPaths = [];
read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, FileIndex, minifat_start);
build_full_paths(FileIndex, FullPaths, Paths);
Paths.shift();
var o = {
FileIndex: FileIndex,
FullPaths: FullPaths
};
// $FlowIgnore
if(options && options.raw) o.raw = {header: header, sectors: sectors};
return o;
} // parse
/* [MS-CFB] 2.2 Compound File Header -- read up to major version */
function check_get_mver(blob) {
// header signature 8
blob.chk(HEADER_SIGNATURE, 'Header Signature: ');
// clsid 16
blob.chk(HEADER_CLSID, 'CLSID: ');
// minor version 2
var mver = blob.read_shift(2, 'u');
return [blob.read_shift(2,'u'), mver];
}
function check_shifts(blob, mver) {
var shift = 0x09;
// Byte Order
//blob.chk('feff', 'Byte Order: '); // note: some writers put 0xffff
blob.l += 2;
// Sector Shift
switch((shift = blob.read_shift(2))) {
case 0x09: if(mver != 3) throw new Error('Sector Shift: Expected 9 saw ' + shift); break;
case 0x0c: if(mver != 4) throw new Error('Sector Shift: Expected 12 saw ' + shift); break;
default: throw new Error('Sector Shift: Expected 9 or 12 saw ' + shift);
}
// Mini Sector Shift
blob.chk('0600', 'Mini Sector Shift: ');
// Reserved
blob.chk('000000000000', 'Reserved: ');
}
/** Break the file up into sectors */
function sectorify(file, ssz) {
var nsectors = Math.ceil(file.length/ssz)-1;
var sectors = [];
for(var i=1; i < nsectors; ++i) sectors[i-1] = file.slice(i*ssz,(i+1)*ssz);
sectors[nsectors-1] = file.slice(nsectors*ssz);
return sectors;
}
/* [MS-CFB] 2.6.4 Red-Black Tree */
function build_full_paths(FI, FP, Paths) {
var i = 0, L = 0, R = 0, C = 0, j = 0, pl = Paths.length;
var dad = [], q = [];
for(; i < pl; ++i) { dad[i]=q[i]=i; FP[i]=Paths[i]; }
for(; j < q.length; ++j) {
i = q[j];
L = FI[i].L; R = FI[i].R; C = FI[i].C;
if(dad[i] === i) {
if(L !== -1 /*NOSTREAM*/ && dad[L] !== L) dad[i] = dad[L];
if(R !== -1 && dad[R] !== R) dad[i] = dad[R];
}
if(C !== -1 /*NOSTREAM*/) dad[C] = i;
if(L !== -1) { dad[L] = dad[i]; if(q.lastIndexOf(L) < j) q.push(L); }
if(R !== -1) { dad[R] = dad[i]; if(q.lastIndexOf(R) < j) q.push(R); }
}
for(i=1; i < pl; ++i) if(dad[i] === i) {
if(R !== -1 /*NOSTREAM*/ && dad[R] !== R) dad[i] = dad[R];
else if(L !== -1 && dad[L] !== L) dad[i] = dad[L];
}
for(i=1; i < pl; ++i) {
if(FI[i].type === 0 /* unknown */) continue;
j = dad[i];
if(j === 0) FP[i] = FP[0] + "/" + FP[i];
else while(j !== 0 && j !== dad[j]) {
FP[i] = FP[j] + "/" + FP[i];
j = dad[j];
}
dad[i] = 0;
}
FP[0] += "/";
for(i=1; i < pl; ++i) {
if(FI[i].type !== 2 /* stream */) FP[i] += "/";
}
}
function get_mfat_entry(entry, payload, mini) {
var start = entry.start, size = entry.size;
//return (payload.slice(start*MSSZ, start*MSSZ + size));
var o = [];
var idx = start;
while(mini && size > 0 && idx >= 0) {
o.push(payload.slice(idx * MSSZ, idx * MSSZ + MSSZ));
size -= MSSZ;
idx = __readInt32LE(mini, idx * 4);
}
if(o.length === 0) return (new_buf(0));
return (bconcat(o).slice(0, entry.size));
}
/** Chase down the rest of the DIFAT chain to build a comprehensive list
DIFAT chains by storing the next sector number as the last 32 bits */
function sleuth_fat(idx, cnt, sectors, ssz, fat_addrs) {
var q = ENDOFCHAIN;
if(idx === ENDOFCHAIN) {
if(cnt !== 0) throw new Error("DIFAT chain shorter than expected");
} else if(idx !== -1 /*FREESECT*/) {
var sector = sectors[idx], m = (ssz>>>2)-1;
if(!sector) return;
for(var i = 0; i < m; ++i) {
if((q = __readInt32LE(sector,i*4)) === ENDOFCHAIN) break;
fat_addrs.push(q);
}
sleuth_fat(__readInt32LE(sector,ssz-4),cnt - 1, sectors, ssz, fat_addrs);
}
}
/** Follow the linked list of sectors for a given starting point */
function get_sector_list(sectors, start, fat_addrs, ssz, chkd) {
var buf = [], buf_chain = [];
if(!chkd) chkd = [];
var modulus = ssz - 1, j = 0, jj = 0;
for(j=start; j>=0;) {
chkd[j] = true;
buf[buf.length] = j;
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}
return {nodes: buf, data:__toBuffer([buf_chain])};
}
/** Chase down the sector linked lists */
function make_sector_list(sectors, dir_start, fat_addrs, ssz) {
var sl = sectors.length, sector_list = ([]);
var chkd = [], buf = [], buf_chain = [];
var modulus = ssz - 1, i=0, j=0, k=0, jj=0;
for(i=0; i < sl; ++i) {
buf = ([]);
k = (i + dir_start); if(k >= sl) k-=sl;
if(chkd[k]) continue;
buf_chain = [];
for(j=k; j>=0;) {
chkd[j] = true;
buf[buf.length] = j;
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}
sector_list[k] = ({nodes: buf, data:__toBuffer([buf_chain])});
}
return sector_list;
}
/* [MS-CFB] 2.6.1 Compound File Directory Entry */
function read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, FileIndex, mini) {
var minifat_store = 0, pl = (Paths.length?2:0);
var sector = sector_list[dir_start].data;
var i = 0, namelen = 0, name;
for(; i < sector.length; i+= 128) {
var blob = sector.slice(i, i+128);
prep_blob(blob, 64);
namelen = blob.read_shift(2);
name = __utf16le(blob,0,namelen-pl);
Paths.push(name);
var o = ({
name: name,
type: blob.read_shift(1),
color: blob.read_shift(1),
L: blob.read_shift(4, 'i'),
R: blob.read_shift(4, 'i'),
C: blob.read_shift(4, 'i'),
clsid: blob.read_shift(16),
state: blob.read_shift(4, 'i'),
start: 0,
size: 0
});
var ctime = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2);
if(ctime !== 0) o.ct = read_date(blob, blob.l-8);
var mtime = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2);
if(mtime !== 0) o.mt = read_date(blob, blob.l-8);
o.start = blob.read_shift(4, 'i');
o.size = blob.read_shift(4, 'i');
if(o.size < 0 && o.start < 0) { o.size = o.type = 0; o.start = ENDOFCHAIN; o.name = ""; }
if(o.type === 5) { /* root */
minifat_store = o.start;
if(nmfs > 0 && minifat_store !== ENDOFCHAIN) sector_list[minifat_store].name = "!StreamData";
/*minifat_size = o.size;*/
} else if(o.size >= 4096 /* MSCSZ */) {
o.storage = 'fat';
if(sector_list[o.start] === undefined) sector_list[o.start] = get_sector_list(sectors, o.start, sector_list.fat_addrs, sector_list.ssz);
sector_list[o.start].name = o.name;
o.content = (sector_list[o.start].data.slice(0,o.size));
} else {
o.storage = 'minifat';
if(o.size < 0) o.size = 0;
else if(minifat_store !== ENDOFCHAIN && o.start !== ENDOFCHAIN && sector_list[minifat_store]) {
o.content = get_mfat_entry(o, sector_list[minifat_store].data, (sector_list[mini]||{}).data);
}
}
if(o.content) prep_blob(o.content, 0);
files[name] = o;
FileIndex.push(o);
}
}
function read_date(blob, offset) {
return new Date(( ( (__readUInt32LE(blob,offset+4)/1e7)*Math.pow(2,32)+__readUInt32LE(blob,offset)/1e7 ) - 11644473600)*1000);
}
function read_file(filename, options) {
get_fs();
return parse(fs.readFileSync(filename), options);
}
function read(blob, options) {
switch(options && options.type || "base64") {
case "file": return read_file(blob, options);
case "base64": return parse(s2a(Base64.decode(blob)), options);
case "binary": return parse(s2a(blob), options);
}
return parse(blob, options);
}
function init_cfb(cfb, opts) {
var o = opts || {}, root = o.root || "Root Entry";
if(!cfb.FullPaths) cfb.FullPaths = [];
if(!cfb.FileIndex) cfb.FileIndex = [];
if(cfb.FullPaths.length !== cfb.FileIndex.length) throw new Error("inconsistent CFB structure");
if(cfb.FullPaths.length === 0) {
cfb.FullPaths[0] = root + "/";
cfb.FileIndex[0] = ({ name: root, type: 5 });
}
if(o.CLSID) cfb.FileIndex[0].clsid = o.CLSID;
seed_cfb(cfb);
}
function seed_cfb(cfb) {
var nm = "\u0001Sh33tJ5";
if(CFB.find(cfb, "/" + nm)) return;
var p = new_buf(4); p[0] = 55; p[1] = p[3] = 50; p[2] = 54;
cfb.FileIndex.push(({ name: nm, type: 2, content:p, size:4, L:69, R:69, C:69 }));
cfb.FullPaths.push(cfb.FullPaths[0] + nm);
rebuild_cfb(cfb);
}
function rebuild_cfb(cfb, f) {
init_cfb(cfb);
var gc = false, s = false;
for(var i = cfb.FullPaths.length - 1; i >= 0; --i) {
var _file = cfb.FileIndex[i];
switch(_file.type) {
case 0:
if(s) gc = true;
else { cfb.FileIndex.pop(); cfb.FullPaths.pop(); }
break;
case 1: case 2: case 5:
s = true;
if(isNaN(_file.R * _file.L * _file.C)) gc = true;
if(_file.R > -1 && _file.L > -1 && _file.R == _file.L) gc = true;
break;
default: gc = true; break;
}
}
if(!gc && !f) return;
var now = new Date(1987, 1, 19), j = 0;
var data = [];
for(i = 0; i < cfb.FullPaths.length; ++i) {
if(cfb.FileIndex[i].type === 0) continue;
data.push([cfb.FullPaths[i], cfb.FileIndex[i]]);
}
for(i = 0; i < data.length; ++i) {
var dad = dirname(data[i][0]);
s = false;
for(j = 0; j < data.length; ++j) if(data[j][0] === dad) s = true;
if(!s) data.push([dad, ({
name: filename(dad).replace("/",""),
type: 1,
clsid: HEADER_CLSID,
ct: now, mt: now,
content: null
})]);
}
data.sort(function(x,y) { return namecmp(x[0], y[0]); });
cfb.FullPaths = []; cfb.FileIndex = [];
for(i = 0; i < data.length; ++i) { cfb.FullPaths[i] = data[i][0]; cfb.FileIndex[i] = data[i][1]; }
for(i = 0; i < data.length; ++i) {
var elt = cfb.FileIndex[i];
var nm = cfb.FullPaths[i];
elt.name = filename(nm).replace("/","");
elt.L = elt.R = elt.C = -(elt.color = 1);
elt.size = elt.content ? elt.content.length : 0;
elt.start = 0;
elt.clsid = (elt.clsid || HEADER_CLSID);
if(i === 0) {
elt.C = data.length > 1 ? 1 : -1;
elt.size = 0;
elt.type = 5;
} else if(nm.slice(-1) == "/") {
for(j=i+1;j < data.length; ++j) if(dirname(cfb.FullPaths[j])==nm) break;
elt.C = j >= data.length ? -1 : j;
for(j=i+1;j < data.length; ++j) if(dirname(cfb.FullPaths[j])==dirname(nm)) break;
elt.R = j >= data.length ? -1 : j;
elt.type = 1;
} else {
if(dirname(cfb.FullPaths[i+1]||"") == dirname(nm)) elt.R = i + 1;
elt.type = 2;
}
}
}
function _write(cfb, options) {
var _opts = options || {};
rebuild_cfb(cfb);
var L = (function(cfb){
var mini_size = 0, fat_size = 0;
for(var i = 0; i < cfb.FileIndex.length; ++i) {
var file = cfb.FileIndex[i];
if(!file.content) continue;
var flen = file.content.length;
if(flen > 0){
if(flen < 0x1000) mini_size += (flen + 0x3F) >> 6;
else fat_size += (flen + 0x01FF) >> 9;
}
}
var dir_cnt = (cfb.FullPaths.length +3) >> 2;
var mini_cnt = (mini_size + 7) >> 3;
var mfat_cnt = (mini_size + 0x7F) >> 7;
var fat_base = mini_cnt + fat_size + dir_cnt + mfat_cnt;
var fat_cnt = (fat_base + 0x7F) >> 7;
var difat_cnt = fat_cnt <= 109 ? 0 : Math.ceil((fat_cnt-109)/0x7F);
while(((fat_base + fat_cnt + difat_cnt + 0x7F) >> 7) > fat_cnt) difat_cnt = ++fat_cnt <= 109 ? 0 : Math.ceil((fat_cnt-109)/0x7F);
var L = [1, difat_cnt, fat_cnt, mfat_cnt, dir_cnt, fat_size, mini_size, 0];
cfb.FileIndex[0].size = mini_size << 6;
L[7] = (cfb.FileIndex[0].start=L[0]+L[1]+L[2]+L[3]+L[4]+L[5])+((L[6]+7) >> 3);
return L;
})(cfb);
var o = new_buf(L[7] << 9);
var i = 0, T = 0;
{
for(i = 0; i < 8; ++i) o.write_shift(1, HEADER_SIG[i]);
for(i = 0; i < 8; ++i) o.write_shift(2, 0);
o.write_shift(2, 0x003E);
o.write_shift(2, 0x0003);
o.write_shift(2, 0xFFFE);
o.write_shift(2, 0x0009);
o.write_shift(2, 0x0006);
for(i = 0; i < 3; ++i) o.write_shift(2, 0);
o.write_shift(4, 0);
o.write_shift(4, L[2]);
o.write_shift(4, L[0] + L[1] + L[2] + L[3] - 1);
o.write_shift(4, 0);
o.write_shift(4, 1<<12);
o.write_shift(4, L[3] ? L[0] + L[1] + L[2] - 1: ENDOFCHAIN);
o.write_shift(4, L[3]);
o.write_shift(-4, L[1] ? L[0] - 1: ENDOFCHAIN);
o.write_shift(4, L[1]);
for(i = 0; i < 109; ++i) o.write_shift(-4, i < L[2] ? L[1] + i : -1);
}
if(L[1]) {
for(T = 0; T < L[1]; ++T) {
for(; i < 236 + T * 127; ++i) o.write_shift(-4, i < L[2] ? L[1] + i : -1);
o.write_shift(-4, T === L[1] - 1 ? ENDOFCHAIN : T + 1);
}
}
var chainit = function(w) {
for(T += w; i<T-1; ++i) o.write_shift(-4, i+1);
if(w) { ++i; o.write_shift(-4, ENDOFCHAIN); }
};
T = i = 0;
for(T+=L[1]; i<T; ++i) o.write_shift(-4, consts.DIFSECT);
for(T+=L[2]; i<T; ++i) o.write_shift(-4, consts.FATSECT);
chainit(L[3]);
chainit(L[4]);
var j = 0, flen = 0;
var file = cfb.FileIndex[0];
for(; j < cfb.FileIndex.length; ++j) {
file = cfb.FileIndex[j];
if(!file.content) continue;
flen = file.content.length;
if(flen < 0x1000) continue;
file.start = T;
chainit((flen + 0x01FF) >> 9);
}
chainit((L[6] + 7) >> 3);
while(o.l & 0x1FF) o.write_shift(-4, consts.ENDOFCHAIN);
T = i = 0;
for(j = 0; j < cfb.FileIndex.length; ++j) {
file = cfb.FileIndex[j];
if(!file.content) continue;
flen = file.content.length;
if(!flen || flen >= 0x1000) continue;
file.start = T;
chainit((flen + 0x3F) >> 6);
}
while(o.l & 0x1FF) o.write_shift(-4, consts.ENDOFCHAIN);
for(i = 0; i < L[4]<<2; ++i) {
var nm = cfb.FullPaths[i];
if(!nm || nm.length === 0) {
for(j = 0; j < 17; ++j) o.write_shift(4, 0);
for(j = 0; j < 3; ++j) o.write_shift(4, -1);
for(j = 0; j < 12; ++j) o.write_shift(4, 0);
continue;
}
file = cfb.FileIndex[i];
if(i === 0) file.start = file.size ? file.start - 1 : ENDOFCHAIN;
var _nm = (i === 0 && _opts.root) || file.name;
flen = 2*(_nm.length+1);
o.write_shift(64, _nm, "utf16le");
o.write_shift(2, flen);
o.write_shift(1, file.type);
o.write_shift(1, file.color);
o.write_shift(-4, file.L);
o.write_shift(-4, file.R);
o.write_shift(-4, file.C);
if(!file.clsid) for(j = 0; j < 4; ++j) o.write_shift(4, 0);
else o.write_shift(16, file.clsid, "hex");
o.write_shift(4, file.state || 0);
o.write_shift(4, 0); o.write_shift(4, 0);
o.write_shift(4, 0); o.write_shift(4, 0);
o.write_shift(4, file.start);
o.write_shift(4, file.size); o.write_shift(4, 0);
}
for(i = 1; i < cfb.FileIndex.length; ++i) {
file = cfb.FileIndex[i];
if(file.size >= 0x1000) {
o.l = (file.start+1) << 9;
for(j = 0; j < file.size; ++j) o.write_shift(1, file.content[j]);
for(; j & 0x1FF; ++j) o.write_shift(1, 0);
}
}
for(i = 1; i < cfb.FileIndex.length; ++i) {
file = cfb.FileIndex[i];
if(file.size > 0 && file.size < 0x1000) {
for(j = 0; j < file.size; ++j) o.write_shift(1, file.content[j]);
for(; j & 0x3F; ++j) o.write_shift(1, 0);
}
}
while(o.l < o.length) o.write_shift(1, 0);
return o;
}
/* [MS-CFB] 2.6.4 (Unicode 3.0.1 case conversion) */
function find(cfb, path) {
var UCFullPaths = cfb.FullPaths.map(function(x) { return x.toUpperCase(); });
var UCPaths = UCFullPaths.map(function(x) { var y = x.split("/"); return y[y.length - (x.slice(-1) == "/" ? 2 : 1)]; });
var k = false;
if(path.charCodeAt(0) === 47 /* "/" */) { k = true; path = UCFullPaths[0].slice(0, -1) + path; }
else k = path.indexOf("/") !== -1;
var UCPath = path.toUpperCase();
var w = k === true ? UCFullPaths.indexOf(UCPath) : UCPaths.indexOf(UCPath);
if(w !== -1) return cfb.FileIndex[w];
var m = !UCPath.match(chr1);
UCPath = UCPath.replace(chr0,'');
if(m) UCPath = UCPath.replace(chr1,'!');
for(w = 0; w < UCFullPaths.length; ++w) {
if((m ? UCFullPaths[w].replace(chr1,'!') : UCFullPaths[w]).replace(chr0,'') == UCPath) return cfb.FileIndex[w];
if((m ? UCPaths[w].replace(chr1,'!') : UCPaths[w]).replace(chr0,'') == UCPath) return cfb.FileIndex[w];
}
return null;
}
/** CFB Constants */
var MSSZ = 64; /* Mini Sector Size = 1<<6 */
//var MSCSZ = 4096; /* Mini Stream Cutoff Size */
/* 2.1 Compound File Sector Numbers and Types */
var ENDOFCHAIN = -2;
/* 2.2 Compound File Header */
var HEADER_SIGNATURE = 'd0cf11e0a1b11ae1';
var HEADER_SIG = [0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1];
var HEADER_CLSID = '00000000000000000000000000000000';
var consts = {
/* 2.1 Compund File Sector Numbers and Types */
MAXREGSECT: -6,
DIFSECT: -4,
FATSECT: -3,
ENDOFCHAIN: ENDOFCHAIN,
FREESECT: -1,
/* 2.2 Compound File Header */
HEADER_SIGNATURE: HEADER_SIGNATURE,
HEADER_MINOR_VERSION: '3e00',
MAXREGSID: -6,
NOSTREAM: -1,
HEADER_CLSID: HEADER_CLSID,
/* 2.6.1 Compound File Directory Entry */
EntryTypes: ['unknown','storage','stream','lockbytes','property','root']
};
function write_file(cfb, filename, options) {
get_fs();
var o = _write(cfb, options);
fs.writeFileSync(filename, o);
}
function a2s(o) {
var out = new Array(o.length);
for(var i = 0; i < o.length; ++i) out[i] = String.fromCharCode(o[i]);
return out.join("");
}
function write(cfb, options) {
var o = _write(cfb, options);
switch(options && options.type) {
case "file": get_fs(); fs.writeFileSync(options.filename, (o)); return o;
case "binary": return a2s(o);
case "base64": return Base64.encode(a2s(o));
}
return o;
}
function cfb_new(opts) {
var o = ({});
init_cfb(o, opts);
return o;
}
function cfb_add(cfb, name, content, opts) {
var unsafe = opts && opts.unsafe;
if(!unsafe) init_cfb(cfb);
var file = !unsafe && CFB.find(cfb, name);
if(!file) {
var fpath = cfb.FullPaths[0];
if(name.slice(0, fpath.length) == fpath) fpath = name;
else {
if(fpath.slice(-1) != "/") fpath += "/";
fpath = (fpath + name).replace("//","/");
}
file = ({name: filename(name), type: 2});
cfb.FileIndex.push(file);
cfb.FullPaths.push(fpath);
if(!unsafe) CFB.utils.cfb_gc(cfb);
}
file.content = (content);
file.size = content ? content.length : 0;
if(opts) {
if(opts.CLSID) file.clsid = opts.CLSID;
}
return file;
}
function cfb_del(cfb, name) {
init_cfb(cfb);
var file = CFB.find(cfb, name);
if(file) for(var j = 0; j < cfb.FileIndex.length; ++j) if(cfb.FileIndex[j] == file) {
cfb.FileIndex.splice(j, 1);
cfb.FullPaths.splice(j, 1);
return true;
}
return false;
}
function cfb_mov(cfb, old_name, new_name) {
init_cfb(cfb);
var file = CFB.find(cfb, old_name);
if(file) for(var j = 0; j < cfb.FileIndex.length; ++j) if(cfb.FileIndex[j] == file) {
cfb.FileIndex[j].name = filename(new_name);
cfb.FullPaths[j] = new_name;
return true;
}
return false;
}
function cfb_gc(cfb) { rebuild_cfb(cfb, true); }
exports.find = find;
exports.read = read;
exports.parse = parse;
exports.write = write;
exports.writeFile = write_file;
exports.utils = {
cfb_new: cfb_new,
cfb_add: cfb_add,
cfb_del: cfb_del,
cfb_mov: cfb_mov,
cfb_gc: cfb_gc,
ReadShift: ReadShift,
CheckField: CheckField,
prep_blob: prep_blob,
bconcat: bconcat,
consts: consts
};
return exports;
})();
if(typeof require !== 'undefined' && typeof module !== 'undefined' && typeof DO_NOT_EXPORT_CFB === 'undefined') { module.exports = CFB; }

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var DO_NOT_EXPORT_CFB = true;
/*::
declare var Base64:any;
declare var ReadShift:any;
declare var CheckField:any;
declare var prep_blob:any;
declare var __readUInt32LE:any;
declare var __readInt32LE:any;
declare var __toBuffer:any;
declare var __utf16le:any;
declare var bconcat:any;
declare var s2a:any;
declare var chr0:any;
declare var chr1:any;
declare var new_buf:any;
*/
/* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com */
/* vim: set ts=2: */
/*jshint eqnull:true */
/*exported CFB */
/*global module, require:false, process:false, Buffer:false, Uint8Array:false */
/*::
declare var DO_NOT_EXPORT_CFB:?boolean;
type SectorEntry = {
name?:string;
nodes?:Array<number>;
data:RawBytes;
};
type SectorList = {
[k:string|number]:SectorEntry;
name:?string;
fat_addrs:Array<number>;
ssz:number;
}
type CFBFiles = {[n:string]:CFBEntry};
*/
/* [MS-CFB] v20171201 */
var CFB = (function _CFB(){
var exports/*:CFBModule*/ = /*::(*/{}/*:: :any)*/;
exports.version = '1.0.8';
/* [MS-CFB] 2.6.4 */
function namecmp(l/*:string*/, r/*:string*/)/*:number*/ {
var L = l.split("/"), R = r.split("/");
for(var i = 0, c = 0, Z = Math.min(L.length, R.length); i < Z; ++i) {
if((c = L[i].length - R[i].length)) return c;
if(L[i] != R[i]) return L[i] < R[i] ? -1 : 1;
}
return L.length - R.length;
}
function dirname(p/*:string*/)/*:string*/ {
if(p.charAt(p.length - 1) == "/") return (p.slice(0,-1).indexOf("/") === -1) ? p : dirname(p.slice(0, -1));
var c = p.lastIndexOf("/");
return (c === -1) ? p : p.slice(0, c+1);
}
function filename(p/*:string*/)/*:string*/ {
if(p.charAt(p.length - 1) == "/") return filename(p.slice(0, -1));
var c = p.lastIndexOf("/");
return (c === -1) ? p : p.slice(c+1);
}
var fs/*:: = require('fs'); */;
function get_fs() { return fs || (fs = require('fs')); }
function parse(file/*:RawBytes*/, options/*:CFBReadOpts*/)/*:CFBContainer*/ {
if(file.length < 512) throw new Error("CFB file size " + file.length + " < 512");
var mver = 3;
var ssz = 512;
var nmfs = 0; // number of mini FAT sectors
var difat_sec_cnt = 0;
var dir_start = 0;
var minifat_start = 0;
var difat_start = 0;
var fat_addrs/*:Array<number>*/ = []; // locations of FAT sectors
/* [MS-CFB] 2.2 Compound File Header */
var blob/*:CFBlob*/ = /*::(*/file.slice(0,512)/*:: :any)*/;
prep_blob(blob, 0);
/* major version */
var mv = check_get_mver(blob);
mver = mv[0];
switch(mver) {
case 3: ssz = 512; break; case 4: ssz = 4096; break;
default: throw new Error("Major Version: Expected 3 or 4 saw " + mver);
}
/* reprocess header */
if(ssz !== 512) { blob = /*::(*/file.slice(0,ssz)/*:: :any)*/; prep_blob(blob, 28 /* blob.l */); }
/* Save header for final object */
var header/*:RawBytes*/ = file.slice(0,ssz);
check_shifts(blob, mver);
// Number of Directory Sectors
var dir_cnt/*:number*/ = blob.read_shift(4, 'i');
if(mver === 3 && dir_cnt !== 0) throw new Error('# Directory Sectors: Expected 0 saw ' + dir_cnt);
// Number of FAT Sectors
blob.l += 4;
// First Directory Sector Location
dir_start = blob.read_shift(4, 'i');
// Transaction Signature
blob.l += 4;
// Mini Stream Cutoff Size
blob.chk('00100000', 'Mini Stream Cutoff Size: ');
// First Mini FAT Sector Location
minifat_start = blob.read_shift(4, 'i');
// Number of Mini FAT Sectors
nmfs = blob.read_shift(4, 'i');
// First DIFAT sector location
difat_start = blob.read_shift(4, 'i');
// Number of DIFAT Sectors
difat_sec_cnt = blob.read_shift(4, 'i');
// Grab FAT Sector Locations
for(var q = -1, j = 0; j < 109; ++j) { /* 109 = (512 - blob.l)>>>2; */
q = blob.read_shift(4, 'i');
if(q<0) break;
fat_addrs[j] = q;
}
/** Break the file up into sectors */
var sectors/*:Array<RawBytes>*/ = sectorify(file, ssz);
sleuth_fat(difat_start, difat_sec_cnt, sectors, ssz, fat_addrs);
/** Chains */
var sector_list/*:SectorList*/ = make_sector_list(sectors, dir_start, fat_addrs, ssz);
sector_list[dir_start].name = "!Directory";
if(nmfs > 0 && minifat_start !== ENDOFCHAIN) sector_list[minifat_start].name = "!MiniFAT";
sector_list[fat_addrs[0]].name = "!FAT";
sector_list.fat_addrs = fat_addrs;
sector_list.ssz = ssz;
/* [MS-CFB] 2.6.1 Compound File Directory Entry */
var files/*:CFBFiles*/ = {}, Paths/*:Array<string>*/ = [], FileIndex/*:CFBFileIndex*/ = [], FullPaths/*:Array<string>*/ = [];
read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, FileIndex, minifat_start);
build_full_paths(FileIndex, FullPaths, Paths);
Paths.shift();
var o = {
FileIndex: FileIndex,
FullPaths: FullPaths
};
// $FlowIgnore
if(options && options.raw) o.raw = {header: header, sectors: sectors};
return o;
} // parse
/* [MS-CFB] 2.2 Compound File Header -- read up to major version */
function check_get_mver(blob/*:CFBlob*/)/*:[number, number]*/ {
// header signature 8
blob.chk(HEADER_SIGNATURE, 'Header Signature: ');
// clsid 16
blob.chk(HEADER_CLSID, 'CLSID: ');
// minor version 2
var mver/*:number*/ = blob.read_shift(2, 'u');
return [blob.read_shift(2,'u'), mver];
}
function check_shifts(blob/*:CFBlob*/, mver/*:number*/)/*:void*/ {
var shift = 0x09;
// Byte Order
//blob.chk('feff', 'Byte Order: '); // note: some writers put 0xffff
blob.l += 2;
// Sector Shift
switch((shift = blob.read_shift(2))) {
case 0x09: if(mver != 3) throw new Error('Sector Shift: Expected 9 saw ' + shift); break;
case 0x0c: if(mver != 4) throw new Error('Sector Shift: Expected 12 saw ' + shift); break;
default: throw new Error('Sector Shift: Expected 9 or 12 saw ' + shift);
}
// Mini Sector Shift
blob.chk('0600', 'Mini Sector Shift: ');
// Reserved
blob.chk('000000000000', 'Reserved: ');
}
/** Break the file up into sectors */
function sectorify(file/*:RawBytes*/, ssz/*:number*/)/*:Array<RawBytes>*/ {
var nsectors = Math.ceil(file.length/ssz)-1;
var sectors/*:Array<RawBytes>*/ = [];
for(var i=1; i < nsectors; ++i) sectors[i-1] = file.slice(i*ssz,(i+1)*ssz);
sectors[nsectors-1] = file.slice(nsectors*ssz);
return sectors;
}
/* [MS-CFB] 2.6.4 Red-Black Tree */
function build_full_paths(FI/*:CFBFileIndex*/, FP/*:Array<string>*/, Paths/*:Array<string>*/)/*:void*/ {
var i = 0, L = 0, R = 0, C = 0, j = 0, pl = Paths.length;
var dad/*:Array<number>*/ = [], q/*:Array<number>*/ = [];
for(; i < pl; ++i) { dad[i]=q[i]=i; FP[i]=Paths[i]; }
for(; j < q.length; ++j) {
i = q[j];
L = FI[i].L; R = FI[i].R; C = FI[i].C;
if(dad[i] === i) {
if(L !== -1 /*NOSTREAM*/ && dad[L] !== L) dad[i] = dad[L];
if(R !== -1 && dad[R] !== R) dad[i] = dad[R];
}
if(C !== -1 /*NOSTREAM*/) dad[C] = i;
if(L !== -1) { dad[L] = dad[i]; if(q.lastIndexOf(L) < j) q.push(L); }
if(R !== -1) { dad[R] = dad[i]; if(q.lastIndexOf(R) < j) q.push(R); }
}
for(i=1; i < pl; ++i) if(dad[i] === i) {
if(R !== -1 /*NOSTREAM*/ && dad[R] !== R) dad[i] = dad[R];
else if(L !== -1 && dad[L] !== L) dad[i] = dad[L];
}
for(i=1; i < pl; ++i) {
if(FI[i].type === 0 /* unknown */) continue;
j = dad[i];
if(j === 0) FP[i] = FP[0] + "/" + FP[i];
else while(j !== 0 && j !== dad[j]) {
FP[i] = FP[j] + "/" + FP[i];
j = dad[j];
}
dad[i] = 0;
}
FP[0] += "/";
for(i=1; i < pl; ++i) {
if(FI[i].type !== 2 /* stream */) FP[i] += "/";
}
}
function get_mfat_entry(entry/*:CFBEntry*/, payload/*:RawBytes*/, mini/*:?RawBytes*/)/*:CFBlob*/ {
var start = entry.start, size = entry.size;
//return (payload.slice(start*MSSZ, start*MSSZ + size)/*:any*/);
var o = [];
var idx = start;
while(mini && size > 0 && idx >= 0) {
o.push(payload.slice(idx * MSSZ, idx * MSSZ + MSSZ));
size -= MSSZ;
idx = __readInt32LE(mini, idx * 4);
}
if(o.length === 0) return (new_buf(0)/*:any*/);
return (bconcat(o).slice(0, entry.size)/*:any*/);
}
/** Chase down the rest of the DIFAT chain to build a comprehensive list
DIFAT chains by storing the next sector number as the last 32 bits */
function sleuth_fat(idx/*:number*/, cnt/*:number*/, sectors/*:Array<RawBytes>*/, ssz/*:number*/, fat_addrs)/*:void*/ {
var q/*:number*/ = ENDOFCHAIN;
if(idx === ENDOFCHAIN) {
if(cnt !== 0) throw new Error("DIFAT chain shorter than expected");
} else if(idx !== -1 /*FREESECT*/) {
var sector = sectors[idx], m = (ssz>>>2)-1;
if(!sector) return;
for(var i = 0; i < m; ++i) {
if((q = __readInt32LE(sector,i*4)) === ENDOFCHAIN) break;
fat_addrs.push(q);
}
sleuth_fat(__readInt32LE(sector,ssz-4),cnt - 1, sectors, ssz, fat_addrs);
}
}
/** Follow the linked list of sectors for a given starting point */
function get_sector_list(sectors/*:Array<RawBytes>*/, start/*:number*/, fat_addrs/*:Array<number>*/, ssz/*:number*/, chkd/*:?Array<boolean>*/)/*:SectorEntry*/ {
var buf/*:Array<number>*/ = [], buf_chain/*:Array<any>*/ = [];
if(!chkd) chkd = [];
var modulus = ssz - 1, j = 0, jj = 0;
for(j=start; j>=0;) {
chkd[j] = true;
buf[buf.length] = j;
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}
return {nodes: buf, data:__toBuffer([buf_chain])};
}
/** Chase down the sector linked lists */
function make_sector_list(sectors/*:Array<RawBytes>*/, dir_start/*:number*/, fat_addrs/*:Array<number>*/, ssz/*:number*/)/*:SectorList*/ {
var sl = sectors.length, sector_list/*:SectorList*/ = ([]/*:any*/);
var chkd/*:Array<boolean>*/ = [], buf/*:Array<number>*/ = [], buf_chain/*:Array<RawBytes>*/ = [];
var modulus = ssz - 1, i=0, j=0, k=0, jj=0;
for(i=0; i < sl; ++i) {
buf = ([]/*:Array<number>*/);
k = (i + dir_start); if(k >= sl) k-=sl;
if(chkd[k]) continue;
buf_chain = [];
for(j=k; j>=0;) {
chkd[j] = true;
buf[buf.length] = j;
buf_chain.push(sectors[j]);
var addr/*:number*/ = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}
sector_list[k] = ({nodes: buf, data:__toBuffer([buf_chain])}/*:SectorEntry*/);
}
return sector_list;
}
/* [MS-CFB] 2.6.1 Compound File Directory Entry */
function read_directory(dir_start/*:number*/, sector_list/*:SectorList*/, sectors/*:Array<RawBytes>*/, Paths/*:Array<string>*/, nmfs, files, FileIndex, mini) {
var minifat_store = 0, pl = (Paths.length?2:0);
var sector = sector_list[dir_start].data;
var i = 0, namelen = 0, name;
for(; i < sector.length; i+= 128) {
var blob/*:CFBlob*/ = /*::(*/sector.slice(i, i+128)/*:: :any)*/;
prep_blob(blob, 64);
namelen = blob.read_shift(2);
name = __utf16le(blob,0,namelen-pl);
Paths.push(name);
var o/*:CFBEntry*/ = ({
name: name,
type: blob.read_shift(1),
color: blob.read_shift(1),
L: blob.read_shift(4, 'i'),
R: blob.read_shift(4, 'i'),
C: blob.read_shift(4, 'i'),
clsid: blob.read_shift(16),
state: blob.read_shift(4, 'i'),
start: 0,
size: 0
});
var ctime/*:number*/ = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2);
if(ctime !== 0) o.ct = read_date(blob, blob.l-8);
var mtime/*:number*/ = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2);
if(mtime !== 0) o.mt = read_date(blob, blob.l-8);
o.start = blob.read_shift(4, 'i');
o.size = blob.read_shift(4, 'i');
if(o.size < 0 && o.start < 0) { o.size = o.type = 0; o.start = ENDOFCHAIN; o.name = ""; }
if(o.type === 5) { /* root */
minifat_store = o.start;
if(nmfs > 0 && minifat_store !== ENDOFCHAIN) sector_list[minifat_store].name = "!StreamData";
/*minifat_size = o.size;*/
} else if(o.size >= 4096 /* MSCSZ */) {
o.storage = 'fat';
if(sector_list[o.start] === undefined) sector_list[o.start] = get_sector_list(sectors, o.start, sector_list.fat_addrs, sector_list.ssz);
sector_list[o.start].name = o.name;
o.content = (sector_list[o.start].data.slice(0,o.size)/*:any*/);
} else {
o.storage = 'minifat';
if(o.size < 0) o.size = 0;
else if(minifat_store !== ENDOFCHAIN && o.start !== ENDOFCHAIN && sector_list[minifat_store]) {
o.content = get_mfat_entry(o, sector_list[minifat_store].data, (sector_list[mini]||{}).data);
}
}
if(o.content) prep_blob(o.content, 0);
files[name] = o;
FileIndex.push(o);
}
}
function read_date(blob/*:RawBytes|CFBlob*/, offset/*:number*/)/*:Date*/ {
return new Date(( ( (__readUInt32LE(blob,offset+4)/1e7)*Math.pow(2,32)+__readUInt32LE(blob,offset)/1e7 ) - 11644473600)*1000);
}
function read_file(filename/*:string*/, options/*:CFBReadOpts*/) {
get_fs();
return parse(fs.readFileSync(filename), options);
}
function read(blob/*:RawBytes|string*/, options/*:CFBReadOpts*/) {
switch(options && options.type || "base64") {
case "file": /*:: if(typeof blob !== 'string') throw "Must pass a filename when type='file'"; */return read_file(blob, options);
case "base64": /*:: if(typeof blob !== 'string') throw "Must pass a base64-encoded binary string when type='file'"; */return parse(s2a(Base64.decode(blob)), options);
case "binary": /*:: if(typeof blob !== 'string') throw "Must pass a binary string when type='file'"; */return parse(s2a(blob), options);
}
return parse(/*::typeof blob == 'string' ? new Buffer(blob, 'utf-8') : */blob, options);
}
function init_cfb(cfb/*:CFBContainer*/, opts/*:?any*/)/*:void*/ {
var o = opts || {}, root = o.root || "Root Entry";
if(!cfb.FullPaths) cfb.FullPaths = [];
if(!cfb.FileIndex) cfb.FileIndex = [];
if(cfb.FullPaths.length !== cfb.FileIndex.length) throw new Error("inconsistent CFB structure");
if(cfb.FullPaths.length === 0) {
cfb.FullPaths[0] = root + "/";
cfb.FileIndex[0] = ({ name: root, type: 5 }/*:any*/);
}
if(o.CLSID) cfb.FileIndex[0].clsid = o.CLSID;
seed_cfb(cfb);
}
function seed_cfb(cfb/*:CFBContainer*/)/*:void*/ {
var nm = "\u0001Sh33tJ5";
if(CFB.find(cfb, "/" + nm)) return;
var p = new_buf(4); p[0] = 55; p[1] = p[3] = 50; p[2] = 54;
cfb.FileIndex.push(({ name: nm, type: 2, content:p, size:4, L:69, R:69, C:69 }/*:any*/));
cfb.FullPaths.push(cfb.FullPaths[0] + nm);
rebuild_cfb(cfb);
}
function rebuild_cfb(cfb/*:CFBContainer*/, f/*:?boolean*/)/*:void*/ {
init_cfb(cfb);
var gc = false, s = false;
for(var i = cfb.FullPaths.length - 1; i >= 0; --i) {
var _file = cfb.FileIndex[i];
switch(_file.type) {
case 0:
if(s) gc = true;
else { cfb.FileIndex.pop(); cfb.FullPaths.pop(); }
break;
case 1: case 2: case 5:
s = true;
if(isNaN(_file.R * _file.L * _file.C)) gc = true;
if(_file.R > -1 && _file.L > -1 && _file.R == _file.L) gc = true;
break;
default: gc = true; break;
}
}
if(!gc && !f) return;
var now = new Date(1987, 1, 19), j = 0;
var data/*:Array<[string, CFBEntry]>*/ = [];
for(i = 0; i < cfb.FullPaths.length; ++i) {
if(cfb.FileIndex[i].type === 0) continue;
data.push([cfb.FullPaths[i], cfb.FileIndex[i]]);
}
for(i = 0; i < data.length; ++i) {
var dad = dirname(data[i][0]);
s = false;
for(j = 0; j < data.length; ++j) if(data[j][0] === dad) s = true;
if(!s) data.push([dad, ({
name: filename(dad).replace("/",""),
type: 1,
clsid: HEADER_CLSID,
ct: now, mt: now,
content: null
}/*:any*/)]);
}
data.sort(function(x,y) { return namecmp(x[0], y[0]); });
cfb.FullPaths = []; cfb.FileIndex = [];
for(i = 0; i < data.length; ++i) { cfb.FullPaths[i] = data[i][0]; cfb.FileIndex[i] = data[i][1]; }
for(i = 0; i < data.length; ++i) {
var elt = cfb.FileIndex[i];
var nm = cfb.FullPaths[i];
elt.name = filename(nm).replace("/","");
elt.L = elt.R = elt.C = -(elt.color = 1);
elt.size = elt.content ? elt.content.length : 0;
elt.start = 0;
elt.clsid = (elt.clsid || HEADER_CLSID);
if(i === 0) {
elt.C = data.length > 1 ? 1 : -1;
elt.size = 0;
elt.type = 5;
} else if(nm.slice(-1) == "/") {
for(j=i+1;j < data.length; ++j) if(dirname(cfb.FullPaths[j])==nm) break;
elt.C = j >= data.length ? -1 : j;
for(j=i+1;j < data.length; ++j) if(dirname(cfb.FullPaths[j])==dirname(nm)) break;
elt.R = j >= data.length ? -1 : j;
elt.type = 1;
} else {
if(dirname(cfb.FullPaths[i+1]||"") == dirname(nm)) elt.R = i + 1;
elt.type = 2;
}
}
}
function _write(cfb/*:CFBContainer*/, options/*:CFBWriteOpts*/)/*:RawBytes*/ {
var _opts = options || {};
rebuild_cfb(cfb);
var L = (function(cfb/*:CFBContainer*/)/*:Array<number>*/{
var mini_size = 0, fat_size = 0;
for(var i = 0; i < cfb.FileIndex.length; ++i) {
var file = cfb.FileIndex[i];
if(!file.content) continue;
/*:: if(file.content == null) throw new Error("unreachable"); */
var flen = file.content.length;
if(flen > 0){
if(flen < 0x1000) mini_size += (flen + 0x3F) >> 6;
else fat_size += (flen + 0x01FF) >> 9;
}
}
var dir_cnt = (cfb.FullPaths.length +3) >> 2;
var mini_cnt = (mini_size + 7) >> 3;
var mfat_cnt = (mini_size + 0x7F) >> 7;
var fat_base = mini_cnt + fat_size + dir_cnt + mfat_cnt;
var fat_cnt = (fat_base + 0x7F) >> 7;
var difat_cnt = fat_cnt <= 109 ? 0 : Math.ceil((fat_cnt-109)/0x7F);
while(((fat_base + fat_cnt + difat_cnt + 0x7F) >> 7) > fat_cnt) difat_cnt = ++fat_cnt <= 109 ? 0 : Math.ceil((fat_cnt-109)/0x7F);
var L = [1, difat_cnt, fat_cnt, mfat_cnt, dir_cnt, fat_size, mini_size, 0];
cfb.FileIndex[0].size = mini_size << 6;
L[7] = (cfb.FileIndex[0].start=L[0]+L[1]+L[2]+L[3]+L[4]+L[5])+((L[6]+7) >> 3);
return L;
})(cfb);
var o = new_buf(L[7] << 9);
var i = 0, T = 0;
{
for(i = 0; i < 8; ++i) o.write_shift(1, HEADER_SIG[i]);
for(i = 0; i < 8; ++i) o.write_shift(2, 0);
o.write_shift(2, 0x003E);
o.write_shift(2, 0x0003);
o.write_shift(2, 0xFFFE);
o.write_shift(2, 0x0009);
o.write_shift(2, 0x0006);
for(i = 0; i < 3; ++i) o.write_shift(2, 0);
o.write_shift(4, 0);
o.write_shift(4, L[2]);
o.write_shift(4, L[0] + L[1] + L[2] + L[3] - 1);
o.write_shift(4, 0);
o.write_shift(4, 1<<12);
o.write_shift(4, L[3] ? L[0] + L[1] + L[2] - 1: ENDOFCHAIN);
o.write_shift(4, L[3]);
o.write_shift(-4, L[1] ? L[0] - 1: ENDOFCHAIN);
o.write_shift(4, L[1]);
for(i = 0; i < 109; ++i) o.write_shift(-4, i < L[2] ? L[1] + i : -1);
}
if(L[1]) {
for(T = 0; T < L[1]; ++T) {
for(; i < 236 + T * 127; ++i) o.write_shift(-4, i < L[2] ? L[1] + i : -1);
o.write_shift(-4, T === L[1] - 1 ? ENDOFCHAIN : T + 1);
}
}
var chainit = function(w/*:number*/)/*:void*/ {
for(T += w; i<T-1; ++i) o.write_shift(-4, i+1);
if(w) { ++i; o.write_shift(-4, ENDOFCHAIN); }
};
T = i = 0;
for(T+=L[1]; i<T; ++i) o.write_shift(-4, consts.DIFSECT);
for(T+=L[2]; i<T; ++i) o.write_shift(-4, consts.FATSECT);
chainit(L[3]);
chainit(L[4]);
var j/*:number*/ = 0, flen/*:number*/ = 0;
var file/*:CFBEntry*/ = cfb.FileIndex[0];
for(; j < cfb.FileIndex.length; ++j) {
file = cfb.FileIndex[j];
if(!file.content) continue;
/*:: if(file.content == null) throw new Error("unreachable"); */
flen = file.content.length;
if(flen < 0x1000) continue;
file.start = T;
chainit((flen + 0x01FF) >> 9);
}
chainit((L[6] + 7) >> 3);
while(o.l & 0x1FF) o.write_shift(-4, consts.ENDOFCHAIN);
T = i = 0;
for(j = 0; j < cfb.FileIndex.length; ++j) {
file = cfb.FileIndex[j];
if(!file.content) continue;
/*:: if(file.content == null) throw new Error("unreachable"); */
flen = file.content.length;
if(!flen || flen >= 0x1000) continue;
file.start = T;
chainit((flen + 0x3F) >> 6);
}
while(o.l & 0x1FF) o.write_shift(-4, consts.ENDOFCHAIN);
for(i = 0; i < L[4]<<2; ++i) {
var nm = cfb.FullPaths[i];
if(!nm || nm.length === 0) {
for(j = 0; j < 17; ++j) o.write_shift(4, 0);
for(j = 0; j < 3; ++j) o.write_shift(4, -1);
for(j = 0; j < 12; ++j) o.write_shift(4, 0);
continue;
}
file = cfb.FileIndex[i];
if(i === 0) file.start = file.size ? file.start - 1 : ENDOFCHAIN;
var _nm/*:string*/ = (i === 0 && _opts.root) || file.name;
flen = 2*(_nm.length+1);
o.write_shift(64, _nm, "utf16le");
o.write_shift(2, flen);
o.write_shift(1, file.type);
o.write_shift(1, file.color);
o.write_shift(-4, file.L);
o.write_shift(-4, file.R);
o.write_shift(-4, file.C);
if(!file.clsid) for(j = 0; j < 4; ++j) o.write_shift(4, 0);
else o.write_shift(16, file.clsid, "hex");
o.write_shift(4, file.state || 0);
o.write_shift(4, 0); o.write_shift(4, 0);
o.write_shift(4, 0); o.write_shift(4, 0);
o.write_shift(4, file.start);
o.write_shift(4, file.size); o.write_shift(4, 0);
}
for(i = 1; i < cfb.FileIndex.length; ++i) {
file = cfb.FileIndex[i];
/*:: if(!file.content) throw new Error("unreachable"); */
if(file.size >= 0x1000) {
o.l = (file.start+1) << 9;
for(j = 0; j < file.size; ++j) o.write_shift(1, file.content[j]);
for(; j & 0x1FF; ++j) o.write_shift(1, 0);
}
}
for(i = 1; i < cfb.FileIndex.length; ++i) {
file = cfb.FileIndex[i];
/*:: if(!file.content) throw new Error("unreachable"); */
if(file.size > 0 && file.size < 0x1000) {
for(j = 0; j < file.size; ++j) o.write_shift(1, file.content[j]);
for(; j & 0x3F; ++j) o.write_shift(1, 0);
}
}
while(o.l < o.length) o.write_shift(1, 0);
return o;
}
/* [MS-CFB] 2.6.4 (Unicode 3.0.1 case conversion) */
function find(cfb/*:CFBContainer*/, path/*:string*/)/*:?CFBEntry*/ {
var UCFullPaths/*:Array<string>*/ = cfb.FullPaths.map(function(x) { return x.toUpperCase(); });
var UCPaths/*:Array<string>*/ = UCFullPaths.map(function(x) { var y = x.split("/"); return y[y.length - (x.slice(-1) == "/" ? 2 : 1)]; });
var k/*:boolean*/ = false;
if(path.charCodeAt(0) === 47 /* "/" */) { k = true; path = UCFullPaths[0].slice(0, -1) + path; }
else k = path.indexOf("/") !== -1;
var UCPath/*:string*/ = path.toUpperCase();
var w/*:number*/ = k === true ? UCFullPaths.indexOf(UCPath) : UCPaths.indexOf(UCPath);
if(w !== -1) return cfb.FileIndex[w];
var m = !UCPath.match(chr1);
UCPath = UCPath.replace(chr0,'');
if(m) UCPath = UCPath.replace(chr1,'!');
for(w = 0; w < UCFullPaths.length; ++w) {
if((m ? UCFullPaths[w].replace(chr1,'!') : UCFullPaths[w]).replace(chr0,'') == UCPath) return cfb.FileIndex[w];
if((m ? UCPaths[w].replace(chr1,'!') : UCPaths[w]).replace(chr0,'') == UCPath) return cfb.FileIndex[w];
}
return null;
}
/** CFB Constants */
var MSSZ = 64; /* Mini Sector Size = 1<<6 */
//var MSCSZ = 4096; /* Mini Stream Cutoff Size */
/* 2.1 Compound File Sector Numbers and Types */
var ENDOFCHAIN = -2;
/* 2.2 Compound File Header */
var HEADER_SIGNATURE = 'd0cf11e0a1b11ae1';
var HEADER_SIG = [0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1];
var HEADER_CLSID = '00000000000000000000000000000000';
var consts = {
/* 2.1 Compund File Sector Numbers and Types */
MAXREGSECT: -6,
DIFSECT: -4,
FATSECT: -3,
ENDOFCHAIN: ENDOFCHAIN,
FREESECT: -1,
/* 2.2 Compound File Header */
HEADER_SIGNATURE: HEADER_SIGNATURE,
HEADER_MINOR_VERSION: '3e00',
MAXREGSID: -6,
NOSTREAM: -1,
HEADER_CLSID: HEADER_CLSID,
/* 2.6.1 Compound File Directory Entry */
EntryTypes: ['unknown','storage','stream','lockbytes','property','root']
};
function write_file(cfb/*:CFBContainer*/, filename/*:string*/, options/*:CFBWriteOpts*/)/*:void*/ {
get_fs();
var o = _write(cfb, options);
/*:: if(typeof Buffer == 'undefined' || !Buffer.isBuffer(o) || !(o instanceof Buffer)) throw new Error("unreachable"); */
fs.writeFileSync(filename, o);
}
function a2s(o/*:RawBytes*/)/*:string*/ {
var out = new Array(o.length);
for(var i = 0; i < o.length; ++i) out[i] = String.fromCharCode(o[i]);
return out.join("");
}
function write(cfb/*:CFBContainer*/, options/*:CFBWriteOpts*/)/*:RawBytes|string*/ {
var o = _write(cfb, options);
switch(options && options.type) {
case "file": get_fs(); fs.writeFileSync(options.filename, (o/*:any*/)); return o;
case "binary": return a2s(o);
case "base64": return Base64.encode(a2s(o));
}
return o;
}
function cfb_new(opts/*:?any*/)/*:CFBContainer*/ {
var o/*:CFBContainer*/ = ({}/*:any*/);
init_cfb(o, opts);
return o;
}
function cfb_add(cfb/*:CFBContainer*/, name/*:string*/, content/*:?RawBytes*/, opts/*:?any*/)/*:CFBEntry*/ {
var unsafe = opts && opts.unsafe;
if(!unsafe) init_cfb(cfb);
var file = !unsafe && CFB.find(cfb, name);
if(!file) {
var fpath/*:string*/ = cfb.FullPaths[0];
if(name.slice(0, fpath.length) == fpath) fpath = name;
else {
if(fpath.slice(-1) != "/") fpath += "/";
fpath = (fpath + name).replace("//","/");
}
file = ({name: filename(name), type: 2}/*:any*/);
cfb.FileIndex.push(file);
cfb.FullPaths.push(fpath);
if(!unsafe) CFB.utils.cfb_gc(cfb);
}
/*:: if(!file) throw new Error("unreachable"); */
file.content = (content/*:any*/);
file.size = content ? content.length : 0;
if(opts) {
if(opts.CLSID) file.clsid = opts.CLSID;
}
return file;
}
function cfb_del(cfb/*:CFBContainer*/, name/*:string*/)/*:boolean*/ {
init_cfb(cfb);
var file = CFB.find(cfb, name);
if(file) for(var j = 0; j < cfb.FileIndex.length; ++j) if(cfb.FileIndex[j] == file) {
cfb.FileIndex.splice(j, 1);
cfb.FullPaths.splice(j, 1);
return true;
}
return false;
}
function cfb_mov(cfb/*:CFBContainer*/, old_name/*:string*/, new_name/*:string*/)/*:boolean*/ {
init_cfb(cfb);
var file = CFB.find(cfb, old_name);
if(file) for(var j = 0; j < cfb.FileIndex.length; ++j) if(cfb.FileIndex[j] == file) {
cfb.FileIndex[j].name = filename(new_name);
cfb.FullPaths[j] = new_name;
return true;
}
return false;
}
function cfb_gc(cfb/*:CFBContainer*/)/*:void*/ { rebuild_cfb(cfb, true); }
exports.find = find;
exports.read = read;
exports.parse = parse;
exports.write = write;
exports.writeFile = write_file;
exports.utils = {
cfb_new: cfb_new,
cfb_add: cfb_add,
cfb_del: cfb_del,
cfb_mov: cfb_mov,
cfb_gc: cfb_gc,
ReadShift: ReadShift,
CheckField: CheckField,
prep_blob: prep_blob,
bconcat: bconcat,
consts: consts
};
return exports;
})();
if(typeof require !== 'undefined' && typeof module !== 'undefined' && typeof DO_NOT_EXPORT_CFB === 'undefined') { module.exports = CFB; }