forked from sheetjs/sheetjs
54 lines
1.8 KiB
TypeScript
54 lines
1.8 KiB
TypeScript
/*! sheetjs (C) 2013-present SheetJS -- http://sheetjs.com */
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import { decompress_iwa_file, compress_iwa_file, u8concat } from "./src/numbers";
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import { read, writeFile, utils, find, CFB$Entry } from 'cfb';
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var f = process.argv[2]; var o = process.argv[3];
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var cfb = read(f, {type: "file"});
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var FI = cfb.FileIndex;
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var bufs = [], mode = 0;
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FI.map((fi, idx): [CFB$Entry, string] => ([fi, cfb.FullPaths[idx]])).forEach(row => {
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var fi = row[0], fp = row[1];
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/* blank all plist files */
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if(fi.name.match(/\.plist/)) {
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console.error(`Blanking plist ${fi.name}`);
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fi.content = new Uint8Array([
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0x62, 0x70, 0x6c, 0x69, 0x73, 0x74, 0x30, 0x30, 0xd0, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09, 0x0a
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]);
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return;
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}
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if(fi.type != 2) return;
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/* Remove other metadata */
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if(!fi.name.match(/\.iwa/)) {
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if(fi.name.match(/Sh33tJ5/)) return;
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console.error(`Removing file ${fi.name}`);
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utils.cfb_del(cfb, fp);
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return;
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}
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/* Reframe .iwa files */
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console.error(`Reframing iwa ${fi.name} (${fi.size})`);
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var old_content = fi.content;
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var raw1 = decompress_iwa_file(old_content as Uint8Array);
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var new_content = compress_iwa_file(raw1);
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var raw2 = decompress_iwa_file(new_content);
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for(var i = 0; i < raw1.length; ++i) if(raw1[i] != raw2[i]) throw new Error(`${fi.name} did not properly roundtrip`);
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bufs.push(raw1);
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switch(mode) {
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case 1: utils.cfb_del(cfb, fp); break;
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/* falls through */
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case 0: fi.content = new_content; break;
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}
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});
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if(mode == 1) {
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var res = compress_iwa_file(u8concat(bufs));
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console.error(`Adding iwa Document.iwa (${res.length})`);
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utils.cfb_add(cfb, "/Index/Document.iwa", res);
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}
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writeFile(cfb, o, {fileType: "zip"});
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