version bump 0.13.1: determinism

- pin unknown dates and zero-fill end of file
- cfb_add can take an absolute path e.g. "/Workbook"
This commit is contained in:
SheetJS 2017-09-20 19:33:03 -04:00
parent d784f9b1f2
commit 3fd73f806b
16 changed files with 283 additions and 366 deletions

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@ -53,7 +53,7 @@ dist: dist-deps $(TARGET) ## Prepare JS files for distribution
.PHONY: dist-deps
dist-deps: xlscfb.js ## Copy dependencies for distribution
cp xlscfb.js dist/xlscfb.js
cp xlscfb.flow.js dist/xlscfb.js
.PHONY: aux
aux: $(AUXTARGETS)
@ -61,7 +61,8 @@ aux: $(AUXTARGETS)
.PHONY: xls
xls: xlscfb.js
XLSDEPS=misc/suppress_export.js $(filter-out bits/08_blob.js,$(DEPS))
XLSSKIP=bits/08_blob.js bits/04_base64.js bits/05_buf.js
XLSDEPS=misc/suppress_export.js $(filter-out $(XLSSKIP),$(DEPS))
xlscfb.flow.js: $(XLSDEPS) ## Build support library
cat $^ | tr -d '\15\32' > $@

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@ -1 +1 @@
exports.version = '0.13.0';
exports.version = '0.13.1';

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@ -1,4 +1,4 @@
var now = new Date(), j = 0;
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;

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@ -6,4 +6,4 @@
for(; j & 0x3F; ++j) o.write_shift(1, 0);
}
}
while(o.l < o.length) o.write_shift(1, 0);

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@ -8,9 +8,15 @@ function cfb_add(cfb/*:CFBContainer*/, name/*:string*/, content/*:?RawBytes*/, o
init_cfb(cfb);
var file = 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)}/*:any*/);
cfb.FileIndex.push(file);
cfb.FullPaths.push(name);
cfb.FullPaths.push(fpath);
CFB.utils.cfb_gc(cfb);
}
/*:: if(!file) throw new Error("unreachable"); */

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@ -179,7 +179,7 @@ type CFBFiles = {[n:string]:CFBEntry};
/* [MS-CFB] v20130118 */
var CFB = (function _CFB(){
var exports/*:CFBModule*/ = /*::(*/{}/*:: :any)*/;
exports.version = '0.13.0';
exports.version = '0.13.1';
/* [MS-CFB] 2.6.4 */
function namecmp(l/*:string*/, r/*:string*/)/*:number*/ {
var L = l.split("/"), R = r.split("/");
@ -552,7 +552,7 @@ function rebuild_cfb(cfb/*:CFBContainer*/, f/*:?boolean*/)/*:void*/ {
}
if(!gc && !f) return;
var now = new Date(), j = 0;
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;
@ -730,7 +730,7 @@ function _write(cfb/*:CFBContainer*/, options/*:CFBWriteOpts*/)/*:RawBytes*/ {
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) */
@ -809,9 +809,15 @@ function cfb_add(cfb/*:CFBContainer*/, name/*:string*/, content/*:?RawBytes*/, o
init_cfb(cfb);
var file = 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)}/*:any*/);
cfb.FileIndex.push(file);
cfb.FullPaths.push(name);
cfb.FullPaths.push(fpath);
CFB.utils.cfb_gc(cfb);
}
/*:: if(!file) throw new Error("unreachable"); */

14
cfb.js
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@ -161,7 +161,7 @@ function new_buf(sz) {
/* [MS-CFB] v20130118 */
var CFB = (function _CFB(){
var exports = {};
exports.version = '0.13.0';
exports.version = '0.13.1';
/* [MS-CFB] 2.6.4 */
function namecmp(l, r) {
var L = l.split("/"), R = r.split("/");
@ -534,7 +534,7 @@ function rebuild_cfb(cfb, f) {
}
if(!gc && !f) return;
var now = new Date(), j = 0;
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;
@ -707,7 +707,7 @@ if(file.size > 0 && file.size < 0x1000) {
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) */
@ -785,9 +785,15 @@ function cfb_add(cfb, name, content, opts) {
init_cfb(cfb);
var file = 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)});
cfb.FileIndex.push(file);
cfb.FullPaths.push(name);
cfb.FullPaths.push(fpath);
CFB.utils.cfb_gc(cfb);
}
file.content = (content);

14
dist/cfb.js vendored
View File

@ -161,7 +161,7 @@ function new_buf(sz) {
/* [MS-CFB] v20130118 */
var CFB = (function _CFB(){
var exports = {};
exports.version = '0.13.0';
exports.version = '0.13.1';
/* [MS-CFB] 2.6.4 */
function namecmp(l, r) {
var L = l.split("/"), R = r.split("/");
@ -534,7 +534,7 @@ function rebuild_cfb(cfb, f) {
}
if(!gc && !f) return;
var now = new Date(), j = 0;
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;
@ -707,7 +707,7 @@ if(file.size > 0 && file.size < 0x1000) {
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) */
@ -785,9 +785,15 @@ function cfb_add(cfb, name, content, opts) {
init_cfb(cfb);
var file = 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)});
cfb.FileIndex.push(file);
cfb.FullPaths.push(name);
cfb.FullPaths.push(fpath);
CFB.utils.cfb_gc(cfb);
}
file.content = (content);

2
dist/cfb.min.js vendored

File diff suppressed because one or more lines are too long

2
dist/cfb.min.map vendored

File diff suppressed because one or more lines are too long

272
dist/xlscfb.js vendored
View File

@ -1,77 +1,46 @@
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 */
var Base64 = (function make_b64(){
var map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
return {
encode: function(input) {
var o = "";
var c1, c2, c3;
var e1, e2, e3, e4;
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, c2, c3;
var e1, e2, e3, e4;
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);
function new_raw_buf(len) {
/* jshint -W056 */
// $FlowIgnore
return new (has_buf ? Buffer : Array)(len);
/* jshint +W056 */
}
var s2a = function s2a(s) {
if(has_buf) return new Buffer(s, "binary");
return s.split("").map(function(x){ return x.charCodeAt(0) & 0xff; });
/*::
declare var DO_NOT_EXPORT_CFB:?boolean;
type SectorEntry = {
name?:string;
nodes?:Array<number>;
data:RawBytes;
};
var chr0 = /\u0000/g, chr1 = /[\u0001-\u0006]/;
type SectorList = {
[k:string|number]:SectorEntry;
name:?string;
fat_addrs:Array<number>;
ssz:number;
}
type CFBFiles = {[n:string]:CFBEntry};
*/
/* [MS-CFB] v20130118 */
var CFB = (function _CFB(){
var exports = {};
exports.version = '0.13.0';
var exports/*:CFBModule*/ = /*::(*/{}/*:: :any)*/;
exports.version = '0.13.1';
/* [MS-CFB] 2.6.4 */
function namecmp(l, r) {
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;
@ -79,18 +48,18 @@ function namecmp(l, r) {
}
return L.length - R.length;
}
function dirname(p) {
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) {
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);
}
function parse(file, options) {
function parse(file/*:RawBytes*/, options/*:CFBReadOpts*/)/*:CFBContainer*/ {
var mver = 3;
var ssz = 512;
var nmfs = 0; // number of mini FAT sectors
@ -99,10 +68,10 @@ var dir_start = 0;
var minifat_start = 0;
var difat_start = 0;
var fat_addrs = []; // locations of FAT sectors
var fat_addrs/*:Array<number>*/ = []; // locations of FAT sectors
/* [MS-CFB] 2.2 Compound File Header */
var blob = file.slice(0,512);
var blob/*:CFBlob*/ = /*::(*/file.slice(0,512)/*:: :any)*/;
prep_blob(blob, 0);
/* major version */
@ -114,14 +83,14 @@ switch(mver) {
}
/* reprocess header */
if(ssz !== 512) { blob = file.slice(0,ssz); prep_blob(blob, 28 /* blob.l */); }
if(ssz !== 512) { blob = /*::(*/file.slice(0,ssz)/*:: :any)*/; prep_blob(blob, 28 /* blob.l */); }
/* Save header for final object */
var header = file.slice(0,ssz);
var header/*:RawBytes*/ = file.slice(0,ssz);
check_shifts(blob, mver);
// Number of Directory Sectors
var dir_cnt = blob.read_shift(4, 'i');
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
@ -156,12 +125,12 @@ for(var q = -1, j = 0; j < 109; ++j) { /* 109 = (512 - blob.l)>>>2; */
}
/** Break the file up into sectors */
var sectors = sectorify(file, ssz);
var sectors/*:Array<RawBytes>*/ = 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);
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";
@ -170,7 +139,7 @@ sector_list.fat_addrs = fat_addrs;
sector_list.ssz = ssz;
/* [MS-CFB] 2.6.1 Compound File Directory Entry */
var files = {}, Paths = [], FileIndex = [], FullPaths = [], FullPathDir = {};
var files/*:CFBFiles*/ = {}, Paths/*:Array<string>*/ = [], FileIndex/*:CFBFileIndex*/ = [], FullPaths/*:Array<string>*/ = [], FullPathDir = {};
read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, FileIndex);
build_full_paths(FileIndex, FullPathDir, FullPaths, Paths);
@ -188,7 +157,7 @@ return o;
} // parse
/* [MS-CFB] 2.2 Compound File Header -- read up to major version */
function check_get_mver(blob) {
function check_get_mver(blob/*:CFBlob*/)/*:[number, number]*/ {
// header signature 8
blob.chk(HEADER_SIGNATURE, 'Header Signature: ');
@ -196,11 +165,11 @@ function check_get_mver(blob) {
blob.chk(HEADER_CLSID, 'CLSID: ');
// minor version 2
var mver = blob.read_shift(2, 'u');
var mver/*:number*/ = blob.read_shift(2, 'u');
return [blob.read_shift(2,'u'), mver];
}
function check_shifts(blob, mver) {
function check_shifts(blob/*:CFBlob*/, mver/*:number*/)/*:void*/ {
var shift = 0x09;
// Byte Order
@ -222,18 +191,18 @@ function check_shifts(blob, mver) {
}
/** Break the file up into sectors */
function sectorify(file, ssz) {
function sectorify(file/*:RawBytes*/, ssz/*:number*/)/*:Array<RawBytes>*/ {
var nsectors = Math.ceil(file.length/ssz)-1;
var sectors = [];
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, FPD, FP, Paths) {
function build_full_paths(FI/*:CFBFileIndex*/, FPD/*:CFBFullPathDir*/, FP/*:Array<string>*/, Paths/*:Array<string>*/)/*:void*/ {
var i = 0, L = 0, R = 0, C = 0, j = 0, pl = Paths.length;
var dad = [], q = [];
var dad/*:Array<number>*/ = [], q/*:Array<number>*/ = [];
for(; i < pl; ++i) { dad[i]=q[i]=i; FP[i]=Paths[i]; }
@ -273,8 +242,8 @@ function build_full_paths(FI, FPD, FP, Paths) {
/** 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;
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*/) {
@ -289,8 +258,8 @@ function sleuth_fat(idx, cnt, 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 = [];
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;) {
@ -307,12 +276,12 @@ function get_sector_list(sectors, start, fat_addrs, ssz, chkd) {
}
/** 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 = [];
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 = ([]);
buf = ([]/*:Array<number>*/);
k = (i + dir_start); if(k >= sl) k-=sl;
if(chkd[k]) continue;
buf_chain = [];
@ -320,29 +289,29 @@ function make_sector_list(sectors, dir_start, fat_addrs, ssz) {
chkd[j] = true;
buf[buf.length] = j;
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
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])});
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, sector_list, sectors, Paths, nmfs, files, FileIndex) {
function read_directory(dir_start/*:number*/, sector_list/*:SectorList*/, sectors/*:Array<RawBytes>*/, Paths/*:Array<string>*/, nmfs, files, FileIndex) {
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);
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 = ({
var o/*:CFBEntry*/ = ({
name: name,
type: blob.read_shift(1),
color: blob.read_shift(1),
@ -354,9 +323,9 @@ function read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, Fil
start: 0,
size: 0
});
var ctime = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2);
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 = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2);
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');
@ -369,12 +338,12 @@ function read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, Fil
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));
o.content = (sector_list[o.start].data.slice(0,o.size)/*:any*/);
prep_blob(o.content, 0);
} else {
o.storage = 'minifat';
if(minifat_store !== ENDOFCHAIN && o.start !== ENDOFCHAIN && sector_list[minifat_store]) {
o.content = (sector_list[minifat_store].data.slice(o.start*MSSZ,o.start*MSSZ+o.size));
o.content = (sector_list[minifat_store].data.slice(o.start*MSSZ,o.start*MSSZ+o.size)/*:any*/);
prep_blob(o.content, 0);
}
}
@ -383,46 +352,46 @@ function read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, Fil
}
}
function read_date(blob, offset) {
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);
}
var fs;
function read_file(filename, options) {
var fs/*:: = require('fs'); */;
function read_file(filename/*:string*/, options/*:CFBReadOpts*/) {
if(fs == null) fs = require('fs');
return parse(fs.readFileSync(filename), options);
}
function read(blob, options) {
function read(blob/*:RawBytes|string*/, options/*:CFBReadOpts*/) {
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);
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(blob, options);
return parse(/*::typeof blob == 'string' ? new Buffer(blob, 'utf-8') : */blob, options);
}
function init_cfb(cfb, opts) {
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 });
cfb.FileIndex[0] = ({ name: root, type: 5 }/*:any*/);
}
if(o.CLSID) cfb.FileIndex[0].clsid = o.CLSID;
seed_cfb(cfb);
}
function 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 }));
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, f) {
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) {
@ -442,8 +411,8 @@ function rebuild_cfb(cfb, f) {
}
if(!gc && !f) return;
var now = new Date(), j = 0;
var data = [];
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]]);
@ -458,7 +427,7 @@ function rebuild_cfb(cfb, f) {
clsid: HEADER_CLSID,
ct: now, mt: now,
content: null
})]);
}/*:any*/)]);
}
data.sort(function(x,y) { return namecmp(x[0], y[0]); });
@ -491,14 +460,15 @@ function rebuild_cfb(cfb, f) {
}
function _write(cfb, options) {
function _write(cfb/*:CFBContainer*/, options/*:CFBWriteOpts*/)/*:RawBytes*/ {
rebuild_cfb(cfb);
var L = (function(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;
var flen = file.content.length;
/*:: if(file.content == null) throw new Error("unreachable"); */
var flen = file.content.length;
if(flen === 0){}
else if(flen < 0x1000) mini_size += (flen + 0x3F) >> 6;
else fat_size += (flen + 0x01FF) >> 9;
@ -543,7 +513,7 @@ var flen = file.content.length;
o.write_shift(-4, T === L[1] - 1 ? ENDOFCHAIN : T + 1);
}
}
var chainit = function(w) {
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); }
};
@ -552,12 +522,13 @@ var flen = file.content.length;
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];
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;
flen = file.content.length;
/*:: if(file.content == null) throw new Error("unreachable"); */
flen = file.content.length;
if(flen < 0x1000) continue;
file.start = T;
chainit((flen + 0x01FF) >> 9);
@ -568,7 +539,8 @@ flen = file.content.length;
for(j = 0; j < cfb.FileIndex.length; ++j) {
file = cfb.FileIndex[j];
if(!file.content) continue;
flen = file.content.length;
/*:: if(file.content == null) throw new Error("unreachable"); */
flen = file.content.length;
if(!flen || flen >= 0x1000) continue;
file.start = T;
chainit((flen + 0x3F) >> 6);
@ -602,7 +574,8 @@ flen = file.content.length;
}
for(i = 1; i < cfb.FileIndex.length; ++i) {
file = cfb.FileIndex[i];
if(file.size >= 0x1000) {
/*:: 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);
@ -610,24 +583,25 @@ if(file.size >= 0x1000) {
}
for(i = 1; i < cfb.FileIndex.length; ++i) {
file = cfb.FileIndex[i];
if(file.size > 0 && file.size < 0x1000) {
/*:: 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, path) {
function find(cfb/*:CFBContainer*/, path/*:string*/)/*:?CFBEntry*/ {
//return cfb.find(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;
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 = path.toUpperCase();
var w = k === true ? UCFullPaths.indexOf(UCPath) : UCPaths.indexOf(UCPath);
var UCPath/*:string*/ = path.toUpperCase();
var w/*:number*/ = k === true ? UCFullPaths.indexOf(UCPath) : UCPaths.indexOf(UCPath);
if(w !== -1) return cfb.FileIndex[w];
UCPath = UCPath.replace(chr0,'').replace(chr1,'!');
@ -663,42 +637,50 @@ var consts = {
EntryTypes: ['unknown','storage','stream','lockbytes','property','root']
};
function write_file(cfb, filename, options) {
function write_file(cfb/*:CFBContainer*/, filename/*:string*/, options/*:CFBWriteOpts*/)/*:void*/ {
var o = _write(cfb, options);
fs.writeFileSync(filename, o);
/*:: if(typeof Buffer == 'undefined' || !Buffer.isBuffer(o) || !(o instanceof Buffer)) throw new Error("unreachable"); */
fs.writeFileSync(filename, o);
}
function a2s(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, options) {
function write(cfb/*:CFBContainer*/, options/*:CFBWriteOpts*/)/*:RawBytes|string*/ {
var o = _write(cfb, options);
switch(options && options.type) {
case "file": fs.writeFileSync(options.filename, (o)); return o;
case "file": 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) {
var o = ({});
function cfb_new(opts/*:?any*/)/*:CFBContainer*/ {
var o/*:CFBContainer*/ = ({}/*:any*/);
init_cfb(o, opts);
return o;
}
function cfb_add(cfb, name, content, opts) {
function cfb_add(cfb/*:CFBContainer*/, name/*:string*/, content/*:?RawBytes*/, opts/*:?any*/)/*:CFBEntry*/ {
init_cfb(cfb);
var file = CFB.find(cfb, name);
if(!file) {
file = ({name: filename(name)});
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)}/*:any*/);
cfb.FileIndex.push(file);
cfb.FullPaths.push(name);
cfb.FullPaths.push(fpath);
CFB.utils.cfb_gc(cfb);
}
file.content = (content);
/*:: 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;
@ -706,7 +688,7 @@ file.content = (content);
return file;
}
function cfb_del(cfb, name) {
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) {
@ -717,7 +699,7 @@ function cfb_del(cfb, name) {
return false;
}
function cfb_mov(cfb, old_name, new_name) {
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) {
@ -728,7 +710,7 @@ function cfb_mov(cfb, old_name, new_name) {
return false;
}
function cfb_gc(cfb) { rebuild_cfb(cfb, true); }
function cfb_gc(cfb/*:CFBContainer*/)/*:void*/ { rebuild_cfb(cfb, true); }
exports.find = find;
exports.read = read;

View File

@ -31,73 +31,75 @@ a { text-decoration: none }
<b>Advanced Demo Options:</b>
Use readAsBinaryString: (when available) <input type="checkbox" name="userabs" checked>
<a id="saveit" onclick="savefile();" href="#">Export loaded data</a>
</pre>
<pre id="out"></pre>
<br />
<script src="https://unpkg.com/printj@1.1.0/dist/printj.min.js"></script>
<script src="cfb.js"></script>
<script src="//rawgit.com/eligrey/Blob.js/master/Blob.js"></script>
<script src="//rawgit.com/eligrey/FileSaver.js/master/FileSaver.js"></script>
<script>
/*jshint browser:true */
/* eslint-env browser */
/* eslint no-use-before-define:0 */
/*global CFB, out */
var rABS = typeof FileReader !== "undefined" && typeof FileReader.prototype !== "undefined" && typeof FileReader.prototype.readAsBinaryString !== "undefined";
if(!rABS) {
document.getElementsByName("userabs")[0].disabled = true;
document.getElementsByName("userabs")[0].checked = false;
}
var global_cfb;
function fixdata(data) {
var o = "", l = 0, w = 10240;
for(; l<data.byteLength/w; ++l) o+=String.fromCharCode.apply(null,new Uint8Array(data.slice(l*w,l*w+w)));
o+=String.fromCharCode.apply(null, new Uint8Array(data.slice(l*w)));
return o;
}
var sprintf = PRINTJ.sprintf;
function fix_string(x/*:string*/)/*:string*/ { return x.replace(/[\u0000-\u001f]/, function($$) { return sprintf("\\u%04X", $$.charCodeAt(0)); }); }
function get_manifest(cfb) {
var out = [];
var get_manifest = (function() {
var sprintf = PRINTJ.sprintf;
function fix_string(x/*:string*/)/*:string*/ { return x.replace(/[\u0000-\u001f]/, function($$) { return sprintf("\\u%04X", $$.charCodeAt(0)); }); }
var format_date = function(date/*:Date*/)/*:string*/ {
return sprintf("%02u-%02u-%02u %02u:%02u", date.getUTCMonth()+1, date.getUTCDate(), date.getUTCFullYear()%100, date.getUTCHours(), date.getUTCMinutes());
};
return function get_manifest(cfb) {
var out = [];
var basetime = new Date(1980,0,1);
var cnt = 0, rootsize = 0, filesize = 0;
out.push(" Length Date Time Name");
out.push(" -------- ---- ---- ----");
cfb.FileIndex.forEach(function(file, i/*:number*/) {
switch(file.type) {
case 5:
basetime = file.ct || file.mt || basetime;
rootsize = file.size;
break;
case 2:
out.push(sprintf("%9lu %s %s", file.size, format_date(basetime), fix_string(cfb.FullPaths[i])));
filesize += file.size;
++cnt;
}
});
out.push(" -------- -------");
out.push(sprintf("%9lu %lu file%s", rootsize || filesize, cnt, (cnt !== 1 ? "s" : "")));
return out.join("\n");
}
var basetime = new Date(1980,0,1);
var cnt = 0, rootsize = 0, filesize = 0;
out.push(" Length Date Time Name");
out.push(" -------- ---- ---- ----");
cfb.FileIndex.forEach(function(file, i/*:number*/) {
switch(file.type) {
case 5:
basetime = file.ct || file.mt || basetime;
rootsize = file.size;
break;
case 2:
out.push(sprintf("%9lu %s %s", file.size, format_date(basetime), fix_string(cfb.FullPaths[i])));
filesize += file.size;
++cnt;
}
});
out.push(" -------- -------");
out.push(sprintf("%9lu %lu file%s", rootsize || filesize, cnt, (cnt !== 1 ? "s" : "")));
return out.join("\n");
};
})();
function process_data(cfb) {
global_cfb = cfb;
var output = get_manifest(cfb);
if(out.innerText === undefined) out.textContent = output;
else out.innerText = output;
}
var drop = document.getElementById('drop');
function handleDrop(e) {
e.stopPropagation();
e.preventDefault();
rABS = document.getElementsByName("userabs")[0].checked;
var files = e.dataTransfer.files;
var f = files[0];
{
var do_file = (function() {
var rABS = typeof FileReader !== "undefined" && (FileReader.prototype||{}).readAsBinaryString;
var domrabs = document.getElementsByName("userabs")[0];
if(!rABS) domrabs.disabled = !(domrabs.checked = false);
function fixdata(data) {
var o = "", l = 0, w = 10240;
for(; l<data.byteLength/w; ++l) o+=String.fromCharCode.apply(null,new Uint8Array(data.slice(l*w,l*w+w)));
o+=String.fromCharCode.apply(null, new Uint8Array(data.slice(l*w)));
return o;
}
return function do_file(files) {
rABS = domrabs.checked;
var f = files[0];
var reader = new FileReader();
reader.onload = function(e) {
var data = e.target.result;
@ -106,22 +108,56 @@ function handleDrop(e) {
};
if(rABS) reader.readAsBinaryString(f);
else reader.readAsArrayBuffer(f);
};
})();
(function() {
var drop = document.getElementById('drop');
if(!drop.addEventListener) return;
function handleDrop(e) {
e.stopPropagation();
e.preventDefault();
do_file(e.dataTransfer.files);
}
}
function handleDragover(e) {
e.stopPropagation();
e.preventDefault();
e.dataTransfer.dropEffect = 'copy';
}
function handleDragover(e) {
e.stopPropagation();
e.preventDefault();
e.dataTransfer.dropEffect = 'copy';
}
if(drop.addEventListener) {
drop.addEventListener('dragenter', handleDragover, false);
drop.addEventListener('dragover', handleDragover, false);
drop.addEventListener('drop', handleDrop, false);
}
})();
var savefile = (function() {
var s2ab = function s2ab(s) {
var buf, i=0;
if(typeof ArrayBuffer !== 'undefined') {
buf = new ArrayBuffer(s.length);
var view = new Uint8Array(buf);
for (; i!=s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
return buf;
} else {
buf = new Array(s.length);
for (; i!=s.length; ++i) buf[i] = s.charCodeAt(i) & 0xFF;
return buf;
}
};
return function savefile() {
if(!global_cfb) return alert("Must load a file first!");
console.log(global_cfb);
var data = CFB.write(global_cfb, {type:'binary'});
console.log(data);
saveAs(new Blob([s2ab(data)],{type:"application/octet-stream"}), "sheetjs.xls");
};
})();
</script>
<script type="text/javascript">
/* eslint no-use-before-define:0 */
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-36810333-1']);
_gaq.push(['_trackPageview']);

View File

@ -1,6 +1,6 @@
{
"name": "cfb",
"version": "0.13.0",
"version": "0.13.1",
"author": "sheetjs",
"description": "Compound File Binary File Format extractor",
"keywords": [ "cfb", "compression", "office" ],

18
test.js
View File

@ -75,23 +75,7 @@ function parsetest(x, cfb) {
});
it('should be idempotent', function() {
var dat2 = CFB.write(newcfb, {type:TYPE});
var newcfb2 = CFB.read(dat2, {type:TYPE});
var _old, _new;
switch(x.substr(-4)) {
case '.xls':
_old = CFB.find(newcfb2, '/Workbook') || CFB.find(newcfb2, '/Book');
_new = CFB.find(newcfb, '/Workbook') || CFB.find(newcfb, '/Book');
break;
case '.ppt':
_old = CFB.find(newcfb2, '/PowerPoint Document');
_new = CFB.find(newcfb, '/PowerPoint Document');
break;
case '.doc':
_old = CFB.find(newcfb2, '/WordDocument') || CFB.find(newcfb2, '/Word Document');
_new = CFB.find(newcfb, '/WordDocument') || CFB.find(newcfb, '/Word Document');
break;
}
if(CRC32.buf(_old.content) != CRC32.buf(_new.content)) throw new Error(x + " failed idempotent test");
if(CRC32.buf(data) != CRC32.buf(dat2)) throw new Error(x + " failed idempotent test");
});
});
}

View File

@ -20,67 +20,6 @@ declare var new_buf:any;
/*exported CFB */
/*global module, require:false, process:false, Buffer:false, Uint8Array:false */
var Base64 = (function make_b64(){
var map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
return {
encode: function(input/*:string*/)/*:string*/ {
var o = "";
var c1/*:number*/, c2/*:number*/, c3/*:number*/;
var e1/*:number*/, e2/*:number*/, e3/*:number*/, e4/*:number*/;
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/*:string*/)/*:string*/ {
var o = "";
var c1/*:number*/, c2/*:number*/, c3/*:number*/;
var e1/*:number*/, e2/*:number*/, e3/*:number*/, e4/*:number*/;
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);
function new_raw_buf(len/*:number*/) {
/* jshint -W056 */
// $FlowIgnore
return new (has_buf ? Buffer : Array)(len);
/* jshint +W056 */
}
var s2a = function s2a(s/*:string*/) {
if(has_buf) return new Buffer(s, "binary");
return s.split("").map(function(x){ return x.charCodeAt(0) & 0xff; });
};
var chr0 = /\u0000/g, chr1 = /[\u0001-\u0006]/;
/*::
declare var DO_NOT_EXPORT_CFB:?boolean;
type SectorEntry = {
@ -99,7 +38,7 @@ type CFBFiles = {[n:string]:CFBEntry};
/* [MS-CFB] v20130118 */
var CFB = (function _CFB(){
var exports/*:CFBModule*/ = /*::(*/{}/*:: :any)*/;
exports.version = '0.13.0';
exports.version = '0.13.1';
/* [MS-CFB] 2.6.4 */
function namecmp(l/*:string*/, r/*:string*/)/*:number*/ {
var L = l.split("/"), R = r.split("/");
@ -472,7 +411,7 @@ function rebuild_cfb(cfb/*:CFBContainer*/, f/*:?boolean*/)/*:void*/ {
}
if(!gc && !f) return;
var now = new Date(), j = 0;
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;
@ -650,7 +589,7 @@ function _write(cfb/*:CFBContainer*/, options/*:CFBWriteOpts*/)/*:RawBytes*/ {
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) */
@ -729,9 +668,15 @@ function cfb_add(cfb/*:CFBContainer*/, name/*:string*/, content/*:?RawBytes*/, o
init_cfb(cfb);
var file = 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)}/*:any*/);
cfb.FileIndex.push(file);
cfb.FullPaths.push(name);
cfb.FullPaths.push(fpath);
CFB.utils.cfb_gc(cfb);
}
/*:: if(!file) throw new Error("unreachable"); */

View File

@ -5,71 +5,10 @@ var DO_NOT_EXPORT_CFB = 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, c2, c3;
var e1, e2, e3, e4;
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, c2, c3;
var e1, e2, e3, e4;
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);
function new_raw_buf(len) {
/* jshint -W056 */
// $FlowIgnore
return new (has_buf ? Buffer : Array)(len);
/* jshint +W056 */
}
var s2a = function s2a(s) {
if(has_buf) return new Buffer(s, "binary");
return s.split("").map(function(x){ return x.charCodeAt(0) & 0xff; });
};
var chr0 = /\u0000/g, chr1 = /[\u0001-\u0006]/;
/* [MS-CFB] v20130118 */
var CFB = (function _CFB(){
var exports = {};
exports.version = '0.13.0';
exports.version = '0.13.1';
/* [MS-CFB] 2.6.4 */
function namecmp(l, r) {
var L = l.split("/"), R = r.split("/");
@ -442,7 +381,7 @@ function rebuild_cfb(cfb, f) {
}
if(!gc && !f) return;
var now = new Date(), j = 0;
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;
@ -615,7 +554,7 @@ if(file.size > 0 && file.size < 0x1000) {
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) */
@ -693,9 +632,15 @@ function cfb_add(cfb, name, content, opts) {
init_cfb(cfb);
var file = 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)});
cfb.FileIndex.push(file);
cfb.FullPaths.push(name);
cfb.FullPaths.push(fpath);
CFB.utils.cfb_gc(cfb);
}
file.content = (content);