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CFB zip compression option 

fixes #600 and fixes #1638
This commit is contained in:
reviewher 2022-02-12 15:26:50 -08:00
parent 88225f5fd5
commit 46360a180a
5 changed files with 5 additions and 98 deletions
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2
bits/21_ziputils.js
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@ -61,7 +61,7 @@ function getzipbin(zip, file/*:string*/, safe/*:?boolean*/)/*:any*/ {
function zipentries(zip) {
var k = zip.FullPaths || keys(zip.files), o = [];
for(var i = 0; i < k.length; ++i) if(k[i].slice(-1) != '/') o.push(k[i]);
for(var i = 0; i < k.length; ++i) if(k[i].slice(-1) != '/') o.push(k[i].replace(/^Root Entry[\/]/, ""));
return o.sort();
}

2
bits/88_write.js
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@ -47,7 +47,7 @@ function write_zip_type(wb/*:Workbook*/, opts/*:?WriteOpts*/)/*:any*/ {
case "file": oopts.type = has_buf ? "nodebuffer" : "string"; break;
default: throw new Error("Unrecognized type " + o.type);
}
var out = z.FullPaths ? CFB.write(z, {fileType:"zip", type: /*::(*/{"nodebuffer": "buffer", "string": "binary"}/*:: :any)*/[oopts.type] || oopts.type}) : z.generate(oopts);
var out = z.FullPaths ? CFB.write(z, {fileType:"zip", type: /*::(*/{"nodebuffer": "buffer", "string": "binary"}/*:: :any)*/[oopts.type] || oopts.type, compression: !!o.compression}) : z.generate(oopts);
if(typeof Deno !== "undefined" && typeof out == "string") out = new Uint8Array(s2ab(out));
/*jshint -W083 */
if(o.password && typeof encrypt_agile !== 'undefined') return write_cfb_ctr(encrypt_agile(out, o.password), o); // eslint-disable-line no-undef

4
mini.lst
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@ -1,6 +1,6 @@
bits/00_header.js
bits/01_version.js
misc/02_codepage.js
bits/02_codepage.js
bits/03_consts.js
bits/04_base64.js
bits/05_buf.js
@ -10,7 +10,7 @@ bits/11_ssfutils.js
bits/18_cfb.js
bits/19_fsutils.js
bits/20_jsutils.js
misc/21_ziputils.js
bits/21_ziputils.js
bits/22_xmlutils.js
bits/23_binutils.js
bits/24_hoppers.js

93
misc/21_ziputils.js
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@ -1,93 +0,0 @@
function getdatastr(data)/*:?string*/ {
if(!data) return null;
if(data.data) return debom(data.data);
if(data.asNodeBuffer && has_buf) return debom(data.asNodeBuffer().toString('binary'));
if(data.asBinary) return debom(data.asBinary());
if(data._data && data._data.getContent) return debom(cc2str(Array.prototype.slice.call(data._data.getContent(),0)));
if(data.content && data.type) return debom(cc2str(data.content));
return null;
}
function getdatabin(data) {
if(!data) return null;
if(data.data) return char_codes(data.data);
if(data.asNodeBuffer && has_buf) return data.asNodeBuffer();
if(data._data && data._data.getContent) {
var o = data._data.getContent();
if(typeof o == "string") return char_codes(o);
return Array.prototype.slice.call(o);
}
if(data.content && data.type) return data.content;
return null;
}
function getdata(data) { return (data && data.name.slice(-4) === ".bin") ? getdatabin(data) : getdatastr(data); }
/* Part 2 Section 10.1.2 "Mapping Content Types" Names are case-insensitive */
/* OASIS does not comment on filename case sensitivity */
function safegetzipfile(zip, file/*:string*/) {
var k = zip.FullPaths || keys(zip.files);
var f = file.toLowerCase().replace(/[\/]/g, '\\'), g = f.replace(/\\/g,'\/');
for(var i=0; i<k.length; ++i) {
var n = k[i].replace(/^Root Entry[\/]/,"").toLowerCase();
if(f == n || g == n) return zip.files ? zip.files[k[i]] : zip.FileIndex[i];
}
return null;
}
function getzipfile(zip, file/*:string*/) {
var o = safegetzipfile(zip, file);
if(o == null) throw new Error("Cannot find file " + file + " in zip");
return o;
}
function getzipdata(zip, file/*:string*/, safe/*:?boolean*/)/*:any*/ {
if(!safe) return getdata(getzipfile(zip, file));
if(!file) return null;
try { return getzipdata(zip, file); } catch(e) { return null; }
}
function getzipstr(zip, file/*:string*/, safe/*:?boolean*/)/*:?string*/ {
if(!safe) return getdatastr(getzipfile(zip, file));
if(!file) return null;
try { return getzipstr(zip, file); } catch(e) { return null; }
}
function zipentries(zip) {
var k = zip.FullPaths || keys(zip.files), o = [];
for(var i = 0; i < k.length; ++i) if(k[i].slice(-1) != '/') o.push(k[i].replace(/^Root Entry[\/]/, ""));
return o.sort();
}
function zip_add_file(zip, path, content) {
if(zip.FullPaths) CFB.utils.cfb_add(zip, path, typeof content == "string" ? (has_buf ? Buffer_from(content) : s2a(utf8write(content))) : content);
else zip.file(path, content);
}
function zip_new() {
return CFB.utils.cfb_new();
}
function zip_read(d, o) {
var zip;
switch(o.type) {
case "base64": zip = CFB.read(d, { type: "base64" }); break;
case "binary": zip = CFB.read(d, { type: "binary" }); break;
case "buffer": case "array": zip = CFB.read(d, { type: "buffer" }); break;
default: throw new Error("Unrecognized type " + o.type);
}
return zip;
}
function resolve_path(path/*:string*/, base/*:string*/)/*:string*/ {
if(path.charAt(0) == "/") return path.slice(1);
var result = base.split('/');
if(base.slice(-1) != "/") result.pop(); // folder path
var target = path.split('/');
while (target.length !== 0) {
var step = target.shift();
if (step === '..') result.pop();
else if (step !== '.') result.push(step);
}
return result.join('/');
}

2
misc/mjs.lst
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@ -10,7 +10,7 @@ bits/11_ssfutils.js
misc/18_esmcfb.js
misc/19_mjsfs.js
bits/20_jsutils.js
misc/21_ziputils.js
bits/21_ziputils.js
bits/22_xmlutils.js
bits/23_binutils.js
bits/24_hoppers.js