60 lines
2.1 KiB
JavaScript
60 lines
2.1 KiB
JavaScript
/* [MS-CFB] 2.6.1 Compound File Directory Entry */
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var files = {}, Paths = [], FileIndex = [], FullPaths = [], FullPathDir = {};
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function read_directory(idx) {
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var blob, read, w;
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var sector = sector_list[idx].data;
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for(var i = 0; i != sector.length; i+= 128) {
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blob = sector.slice(i, i+128);
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prep_blob(blob, 64);
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read = ReadShift.bind(blob);
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var namelen = read(2);
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if(namelen === 0) return;
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var name = __utf16le(blob,0,namelen-(Paths.length?2:0)); // OLE
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Paths.push(name);
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var o = { name: name };
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o.type = EntryTypes[read(1)];
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o.color = read(1);
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o.left = read(4); if(o.left === NOSTREAM) delete o.left;
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o.right = read(4); if(o.right === NOSTREAM) delete o.right;
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o.child = read(4); if(o.child === NOSTREAM) delete o.child;
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o.clsid = read(16);
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o.state = read(4);
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var ctime = read(8); if(ctime != "0000000000000000") o.ctime = ctime;
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var mtime = read(8); if(mtime != "0000000000000000") o.mtime = mtime;
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o.start = read(4);
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o.size = read(4);
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if(o.type === 'root') { //root entry
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minifat_store = o.start;
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if(nmfs > 0 && minifat_store !== ENDOFCHAIN) sector_list[minifat_store].name = "!StreamData";
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minifat_size = o.size;
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} else if(o.size >= ms_cutoff_size) {
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o.storage = 'fat';
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if(!sector_list[o.start] && dir_start > 0) o.start = (o.start + dir_start) % sectors.length;
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sector_list[o.start].name = o.name;
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o.content = sector_list[o.start].data.slice(0,o.size);
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prep_blob(o.content);
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} else {
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o.storage = 'minifat';
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w = o.start * mssz;
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if(minifat_store !== ENDOFCHAIN && o.start !== ENDOFCHAIN) {
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o.content = sector_list[minifat_store].data.slice(w,w+o.size);
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prep_blob(o.content);
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}
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}
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if(o.ctime) {
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var ct = blob.slice(blob.l-24, blob.l-16);
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var c2 = (__readUInt32LE(ct,4)/1e7)*Math.pow(2,32)+__readUInt32LE(ct,0)/1e7;
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o.ct = new Date((c2 - 11644473600)*1000);
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}
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if(o.mtime) {
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var mt = blob.slice(blob.l-16, blob.l-8);
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var m2 = (__readUInt32LE(mt,4)/1e7)*Math.pow(2,32)+__readUInt32LE(mt,0)/1e7;
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o.mt = new Date((m2 - 11644473600)*1000);
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}
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files[name] = o;
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FileIndex.push(o);
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}
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}
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read_directory(dir_start);
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