sheetjs/js-cfb
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version bump 0.11.1: ignore byte order

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some writers incorrectly fill `0xffff` rather than `0xfffe`
This commit is contained in:
SheetJS 2017-03-30 17:34:37 -04:00
parent b5c5f05e32
commit 16eebaeab4
11 changed files with 61 additions and 54 deletions
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2
Makefile
View File

@ -12,6 +12,7 @@ DEPS=$(sort $(wildcard bits/*.js))
TARGET=$(LIB).js
FLOWTARGET=$(LIB).flow.js
FLOWTGTS=$(TARGET) $(AUXTARGETS)
CLOSURE=/usr/local/lib/node_modules/google-closure-compiler/compiler.jar
## Main Targets
@ -86,6 +87,7 @@ lint: $(TARGET) $(AUXTARGETS) ## Run jshint and jscs checks
@jshint --show-non-errors package.json
@jshint --show-non-errors --extract=always $(HTMLLINT)
@jscs $(TARGET) $(AUXTARGETS)
if [ -e $(CLOSURE) ]; then java -jar $(CLOSURE) $(REQS) $(FLOWTARGET) --jscomp_warning=reportUnknownTypes >/dev/null; fi
.PHONY: flow
flow: lint ## Run flow checker

2
bits/08_blob.js
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@ -69,7 +69,7 @@ function ReadShift(size/*:number*/, t/*:?any*/) {
function CheckField(hexstr/*:string*/, fld/*:string*/) {
var m = __hexlify(this,this.l,hexstr.length>>1);
if(m !== hexstr) throw fld + 'Expected ' + hexstr + ' saw ' + m;
if(m !== hexstr) throw new Error(fld + 'Expected ' + hexstr + ' saw ' + m);
this.l += hexstr.length>>1;
}

2
bits/31_version.js
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@ -1 +1 @@
exports.version = '0.11.0';
exports.version = '0.11.1';

4
bits/40_parse.js
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@ -18,7 +18,7 @@ var mv = check_get_mver(blob);
mver = mv[0];
switch(mver) {
case 3: ssz = 512; break; case 4: ssz = 4096; break;
default: throw "Major Version: Expected 3 or 4 saw " + mver;
default: throw new Error("Major Version: Expected 3 or 4 saw " + mver);
}
/* reprocess header */
@ -30,7 +30,7 @@ check_shifts(blob, mver);
// Number of Directory Sectors
var nds = blob.read_shift(4, 'i');
if(mver === 3 && nds !== 0) throw '# Directory Sectors: Expected 0 saw ' + nds;
if(mver === 3 && nds !== 0) throw new Error('# Directory Sectors: Expected 0 saw ' + nds);
// Number of FAT Sectors
//var nfs = blob.read_shift(4, 'i');

9
bits/41_mver.js
View File

@ -15,13 +15,14 @@ function check_shifts(blob, mver) {
var shift = 0x09;
// Byte Order
blob.chk('feff', '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 'MajorVersion/SectorShift Mismatch'; break;
case 0x0c: if(mver !== 4) throw 'MajorVersion/SectorShift Mismatch'; break;
default: throw 'Sector Shift: Expected 9 or 12 saw ' + shift;
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

6
bits/45_readfat.js
View File

@ -3,7 +3,7 @@
function sleuth_fat(idx, cnt, sectors, ssz, fat_addrs) {
var q;
if(idx === ENDOFCHAIN) {
if(cnt !== 0) throw "DIFAT chain shorter than expected";
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;
@ -29,7 +29,7 @@ function get_sector_list(sectors, start, fat_addrs, ssz, chkd) {
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw "FAT boundary crossed: " + j + " 4 "+ssz;
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}
@ -52,7 +52,7 @@ function make_sector_list(sectors, dir_start, fat_addrs, ssz/*:number*/)/*:any*/
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw "FAT boundary crossed: " + j + " 4 "+ssz;
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}

23
cfb.flow.js
View File

@ -73,7 +73,7 @@ function ReadShift(size/*:number*/, t/*:?any*/) {
function CheckField(hexstr/*:string*/, fld/*:string*/) {
var m = __hexlify(this,this.l,hexstr.length>>1);
if(m !== hexstr) throw fld + 'Expected ' + hexstr + ' saw ' + m;
if(m !== hexstr) throw new Error(fld + 'Expected ' + hexstr + ' saw ' + m);
this.l += hexstr.length>>1;
}
@ -96,7 +96,7 @@ type SectorList = {
/* [MS-CFB] v20130118 */
var CFB = (function _CFB(){
var exports = {};
exports.version = '0.11.0';
exports.version = '0.11.1';
function parse(file) {
var mver = 3; // major version
var ssz = 512; // sector size
@ -117,7 +117,7 @@ var mv = check_get_mver(blob);
mver = mv[0];
switch(mver) {
case 3: ssz = 512; break; case 4: ssz = 4096; break;
default: throw "Major Version: Expected 3 or 4 saw " + mver;
default: throw new Error("Major Version: Expected 3 or 4 saw " + mver);
}
/* reprocess header */
@ -129,7 +129,7 @@ check_shifts(blob, mver);
// Number of Directory Sectors
var nds = blob.read_shift(4, 'i');
if(mver === 3 && nds !== 0) throw '# Directory Sectors: Expected 0 saw ' + nds;
if(mver === 3 && nds !== 0) throw new Error('# Directory Sectors: Expected 0 saw ' + nds);
// Number of FAT Sectors
//var nfs = blob.read_shift(4, 'i');
@ -215,13 +215,14 @@ function check_shifts(blob, mver) {
var shift = 0x09;
// Byte Order
blob.chk('feff', '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 'MajorVersion/SectorShift Mismatch'; break;
case 0x0c: if(mver !== 4) throw 'MajorVersion/SectorShift Mismatch'; break;
default: throw 'Sector Shift: Expected 9 or 12 saw ' + shift;
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
@ -303,7 +304,7 @@ function make_find_path(FullPaths, Paths, FileIndex, files, root_name) {
function sleuth_fat(idx, cnt, sectors, ssz, fat_addrs) {
var q;
if(idx === ENDOFCHAIN) {
if(cnt !== 0) throw "DIFAT chain shorter than expected";
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;
@ -329,7 +330,7 @@ function get_sector_list(sectors, start, fat_addrs, ssz, chkd) {
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw "FAT boundary crossed: " + j + " 4 "+ssz;
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}
@ -352,7 +353,7 @@ function make_sector_list(sectors, dir_start, fat_addrs, ssz/*:number*/)/*:any*/
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw "FAT boundary crossed: " + j + " 4 "+ssz;
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}

23
cfb.js
View File

@ -73,7 +73,7 @@ function ReadShift(size, t) {
function CheckField(hexstr, fld) {
var m = __hexlify(this,this.l,hexstr.length>>1);
if(m !== hexstr) throw fld + 'Expected ' + hexstr + ' saw ' + m;
if(m !== hexstr) throw new Error(fld + 'Expected ' + hexstr + ' saw ' + m);
this.l += hexstr.length>>1;
}
@ -86,7 +86,7 @@ function prep_blob(blob, pos) {
/* [MS-CFB] v20130118 */
var CFB = (function _CFB(){
var exports = {};
exports.version = '0.11.0';
exports.version = '0.11.1';
function parse(file) {
var mver = 3; // major version
var ssz = 512; // sector size
@ -107,7 +107,7 @@ var mv = check_get_mver(blob);
mver = mv[0];
switch(mver) {
case 3: ssz = 512; break; case 4: ssz = 4096; break;
default: throw "Major Version: Expected 3 or 4 saw " + mver;
default: throw new Error("Major Version: Expected 3 or 4 saw " + mver);
}
/* reprocess header */
@ -119,7 +119,7 @@ check_shifts(blob, mver);
// Number of Directory Sectors
var nds = blob.read_shift(4, 'i');
if(mver === 3 && nds !== 0) throw '# Directory Sectors: Expected 0 saw ' + nds;
if(mver === 3 && nds !== 0) throw new Error('# Directory Sectors: Expected 0 saw ' + nds);
// Number of FAT Sectors
//var nfs = blob.read_shift(4, 'i');
@ -205,13 +205,14 @@ function check_shifts(blob, mver) {
var shift = 0x09;
// Byte Order
blob.chk('feff', '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 'MajorVersion/SectorShift Mismatch'; break;
case 0x0c: if(mver !== 4) throw 'MajorVersion/SectorShift Mismatch'; break;
default: throw 'Sector Shift: Expected 9 or 12 saw ' + shift;
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
@ -293,7 +294,7 @@ function make_find_path(FullPaths, Paths, FileIndex, files, root_name) {
function sleuth_fat(idx, cnt, sectors, ssz, fat_addrs) {
var q;
if(idx === ENDOFCHAIN) {
if(cnt !== 0) throw "DIFAT chain shorter than expected";
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;
@ -319,7 +320,7 @@ function get_sector_list(sectors, start, fat_addrs, ssz, chkd) {
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw "FAT boundary crossed: " + j + " 4 "+ssz;
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}
@ -342,7 +343,7 @@ function make_sector_list(sectors, dir_start, fat_addrs, ssz) {
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw "FAT boundary crossed: " + j + " 4 "+ssz;
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}

2
package.json
View File

@ -1,6 +1,6 @@
{
"name": "cfb",
"version": "0.11.0",
"version": "0.11.1",
"author": "sheetjs",
"description": "Compound File Binary File Format extractor",
"keywords": [ "cfb", "compression", "office" ],

21
xlscfb.flow.js
View File

@ -30,7 +30,7 @@ type SectorList = {
/* [MS-CFB] v20130118 */
var CFB = (function _CFB(){
var exports = {};
exports.version = '0.11.0';
exports.version = '0.11.1';
function parse(file) {
var mver = 3; // major version
var ssz = 512; // sector size
@ -51,7 +51,7 @@ var mv = check_get_mver(blob);
mver = mv[0];
switch(mver) {
case 3: ssz = 512; break; case 4: ssz = 4096; break;
default: throw "Major Version: Expected 3 or 4 saw " + mver;
default: throw new Error("Major Version: Expected 3 or 4 saw " + mver);
}
/* reprocess header */
@ -63,7 +63,7 @@ check_shifts(blob, mver);
// Number of Directory Sectors
var nds = blob.read_shift(4, 'i');
if(mver === 3 && nds !== 0) throw '# Directory Sectors: Expected 0 saw ' + nds;
if(mver === 3 && nds !== 0) throw new Error('# Directory Sectors: Expected 0 saw ' + nds);
// Number of FAT Sectors
//var nfs = blob.read_shift(4, 'i');
@ -149,13 +149,14 @@ function check_shifts(blob, mver) {
var shift = 0x09;
// Byte Order
blob.chk('feff', '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 'MajorVersion/SectorShift Mismatch'; break;
case 0x0c: if(mver !== 4) throw 'MajorVersion/SectorShift Mismatch'; break;
default: throw 'Sector Shift: Expected 9 or 12 saw ' + shift;
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
@ -237,7 +238,7 @@ function make_find_path(FullPaths, Paths, FileIndex, files, root_name) {
function sleuth_fat(idx, cnt, sectors, ssz, fat_addrs) {
var q;
if(idx === ENDOFCHAIN) {
if(cnt !== 0) throw "DIFAT chain shorter than expected";
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;
@ -263,7 +264,7 @@ function get_sector_list(sectors, start, fat_addrs, ssz, chkd) {
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw "FAT boundary crossed: " + j + " 4 "+ssz;
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}
@ -286,7 +287,7 @@ function make_sector_list(sectors, dir_start, fat_addrs, ssz/*:number*/)/*:any*/
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw "FAT boundary crossed: " + j + " 4 "+ssz;
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}

21
xlscfb.js
View File

@ -6,7 +6,7 @@ var DO_NOT_EXPORT_CFB = true;
/* [MS-CFB] v20130118 */
var CFB = (function _CFB(){
var exports = {};
exports.version = '0.11.0';
exports.version = '0.11.1';
function parse(file) {
var mver = 3; // major version
var ssz = 512; // sector size
@ -27,7 +27,7 @@ var mv = check_get_mver(blob);
mver = mv[0];
switch(mver) {
case 3: ssz = 512; break; case 4: ssz = 4096; break;
default: throw "Major Version: Expected 3 or 4 saw " + mver;
default: throw new Error("Major Version: Expected 3 or 4 saw " + mver);
}
/* reprocess header */
@ -39,7 +39,7 @@ check_shifts(blob, mver);
// Number of Directory Sectors
var nds = blob.read_shift(4, 'i');
if(mver === 3 && nds !== 0) throw '# Directory Sectors: Expected 0 saw ' + nds;
if(mver === 3 && nds !== 0) throw new Error('# Directory Sectors: Expected 0 saw ' + nds);
// Number of FAT Sectors
//var nfs = blob.read_shift(4, 'i');
@ -125,13 +125,14 @@ function check_shifts(blob, mver) {
var shift = 0x09;
// Byte Order
blob.chk('feff', '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 'MajorVersion/SectorShift Mismatch'; break;
case 0x0c: if(mver !== 4) throw 'MajorVersion/SectorShift Mismatch'; break;
default: throw 'Sector Shift: Expected 9 or 12 saw ' + shift;
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
@ -213,7 +214,7 @@ function make_find_path(FullPaths, Paths, FileIndex, files, root_name) {
function sleuth_fat(idx, cnt, sectors, ssz, fat_addrs) {
var q;
if(idx === ENDOFCHAIN) {
if(cnt !== 0) throw "DIFAT chain shorter than expected";
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;
@ -239,7 +240,7 @@ function get_sector_list(sectors, start, fat_addrs, ssz, chkd) {
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw "FAT boundary crossed: " + j + " 4 "+ssz;
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}
@ -262,7 +263,7 @@ function make_sector_list(sectors, dir_start, fat_addrs, ssz) {
buf_chain.push(sectors[j]);
var addr = fat_addrs[Math.floor(j*4/ssz)];
jj = ((j*4) & modulus);
if(ssz < 4 + jj) throw "FAT boundary crossed: " + j + " 4 "+ssz;
if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
if(!sectors[addr]) break;
j = __readInt32LE(sectors[addr], jj);
}