forked from sheetjs/sheetjs
292 lines
12 KiB
JavaScript
292 lines
12 KiB
JavaScript
function get_sheet_type(n/*:string*/)/*:string*/ {
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if(RELS.WS.indexOf(n) > -1) return "sheet";
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if(RELS.CS && n == RELS.CS) return "chart";
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if(RELS.DS && n == RELS.DS) return "dialog";
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if(RELS.MS && n == RELS.MS) return "macro";
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return (n && n.length) ? n : "sheet";
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}
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function safe_parse_wbrels(wbrels, sheets) {
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if(!wbrels) return 0;
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try {
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wbrels = sheets.map(function pwbr(w) { if(!w.id) w.id = w.strRelID; return [w.name, wbrels['!id'][w.id].Target, get_sheet_type(wbrels['!id'][w.id].Type)]; });
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} catch(e) { return null; }
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return !wbrels || wbrels.length === 0 ? null : wbrels;
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}
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function safe_parse_sheet(zip, path/*:string*/, relsPath/*:string*/, sheet, idx/*:number*/, sheetRels, sheets, stype/*:string*/, opts, wb, themes, styles) {
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try {
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sheetRels[sheet]=parse_rels(getzipstr(zip, relsPath, true), path);
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var data = getzipdata(zip, path);
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var _ws;
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switch(stype) {
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case 'sheet': _ws = parse_ws(data, path, idx, opts, sheetRels[sheet], wb, themes, styles); break;
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case 'chart': _ws = parse_cs(data, path, idx, opts, sheetRels[sheet], wb, themes, styles);
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if(!_ws || !_ws['!drawel']) break;
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var dfile = resolve_path(_ws['!drawel'].Target, path);
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var drelsp = get_rels_path(dfile);
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var draw = parse_drawing(getzipstr(zip, dfile, true), parse_rels(getzipstr(zip, drelsp, true), dfile));
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var chartp = resolve_path(draw, dfile);
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var crelsp = get_rels_path(chartp);
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_ws = parse_chart(getzipstr(zip, chartp, true), chartp, opts, parse_rels(getzipstr(zip, crelsp, true), chartp), wb, _ws);
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break;
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case 'macro': _ws = parse_ms(data, path, idx, opts, sheetRels[sheet], wb, themes, styles); break;
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case 'dialog': _ws = parse_ds(data, path, idx, opts, sheetRels[sheet], wb, themes, styles); break;
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default: throw new Error("Unrecognized sheet type " + stype);
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}
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sheets[sheet] = _ws;
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/* scan rels for comments and threaded comments */
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var tcomments = [];
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if(sheetRels && sheetRels[sheet]) keys(sheetRels[sheet]).forEach(function(n) {
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var dfile = "";
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if(sheetRels[sheet][n].Type == RELS.CMNT) {
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dfile = resolve_path(sheetRels[sheet][n].Target, path);
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var comments = parse_cmnt(getzipdata(zip, dfile, true), dfile, opts);
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if(!comments || !comments.length) return;
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sheet_insert_comments(_ws, comments, false);
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}
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if(sheetRels[sheet][n].Type == RELS.TCMNT) {
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dfile = resolve_path(sheetRels[sheet][n].Target, path);
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tcomments = tcomments.concat(parse_tcmnt_xml(getzipdata(zip, dfile, true), opts));
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}
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});
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if(tcomments && tcomments.length) sheet_insert_comments(_ws, tcomments, true, opts.people || []);
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} catch(e) { if(opts.WTF) throw e; }
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}
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function strip_front_slash(x/*:string*/)/*:string*/ { return x.charAt(0) == '/' ? x.slice(1) : x; }
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function parse_zip(zip/*:ZIP*/, opts/*:?ParseOpts*/)/*:Workbook*/ {
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make_ssf(SSF);
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opts = opts || {};
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fix_read_opts(opts);
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/* OpenDocument Part 3 Section 2.2.1 OpenDocument Package */
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if(safegetzipfile(zip, 'META-INF/manifest.xml')) return parse_ods(zip, opts);
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/* UOC */
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if(safegetzipfile(zip, 'objectdata.xml')) return parse_ods(zip, opts);
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/* Numbers */
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if(safegetzipfile(zip, 'Index/Document.iwa')) {
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if(typeof Uint8Array == "undefined") throw new Error('NUMBERS file parsing requires Uint8Array support');
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if(typeof parse_numbers_iwa != "undefined") {
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if(zip.FileIndex) return parse_numbers_iwa(zip);
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var _zip = CFB.utils.cfb_new();
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zipentries(zip).forEach(function(e) { zip_add_file(_zip, e, getzipbin(zip, e)); });
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return parse_numbers_iwa(_zip);
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}
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throw new Error('Unsupported NUMBERS file');
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}
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if(!safegetzipfile(zip, '[Content_Types].xml')) {
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if(safegetzipfile(zip, 'index.xml.gz')) throw new Error('Unsupported NUMBERS 08 file');
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if(safegetzipfile(zip, 'index.xml')) throw new Error('Unsupported NUMBERS 09 file');
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throw new Error('Unsupported ZIP file');
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}
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var entries = zipentries(zip);
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var dir = parse_ct((getzipstr(zip, '[Content_Types].xml')/*:?any*/));
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var xlsb = false;
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var sheets, binname;
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if(dir.workbooks.length === 0) {
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binname = "xl/workbook.xml";
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if(getzipdata(zip,binname, true)) dir.workbooks.push(binname);
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}
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if(dir.workbooks.length === 0) {
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binname = "xl/workbook.bin";
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if(!getzipdata(zip,binname,true)) throw new Error("Could not find workbook");
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dir.workbooks.push(binname);
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xlsb = true;
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}
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if(dir.workbooks[0].slice(-3) == "bin") xlsb = true;
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var themes = ({}/*:any*/);
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var styles = ({}/*:any*/);
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if(!opts.bookSheets && !opts.bookProps) {
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strs = [];
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if(dir.sst) try { strs=parse_sst(getzipdata(zip, strip_front_slash(dir.sst)), dir.sst, opts); } catch(e) { if(opts.WTF) throw e; }
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if(opts.cellStyles && dir.themes.length) themes = parse_theme(getzipstr(zip, dir.themes[0].replace(/^\//,''), true)||"",dir.themes[0], opts);
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if(dir.style) styles = parse_sty(getzipdata(zip, strip_front_slash(dir.style)), dir.style, themes, opts);
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}
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/*var externbooks = */dir.links.map(function(link) {
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try {
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var rels = parse_rels(getzipstr(zip, get_rels_path(strip_front_slash(link))), link);
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return parse_xlink(getzipdata(zip, strip_front_slash(link)), rels, link, opts);
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} catch(e) {}
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});
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var wb = parse_wb(getzipdata(zip, strip_front_slash(dir.workbooks[0])), dir.workbooks[0], opts);
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var props = {}, propdata = "";
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if(dir.coreprops.length) {
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propdata = getzipdata(zip, strip_front_slash(dir.coreprops[0]), true);
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if(propdata) props = parse_core_props(propdata);
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if(dir.extprops.length !== 0) {
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propdata = getzipdata(zip, strip_front_slash(dir.extprops[0]), true);
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if(propdata) parse_ext_props(propdata, props, opts);
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}
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}
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var custprops = {};
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if(!opts.bookSheets || opts.bookProps) {
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if (dir.custprops.length !== 0) {
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propdata = getzipstr(zip, strip_front_slash(dir.custprops[0]), true);
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if(propdata) custprops = parse_cust_props(propdata, opts);
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}
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}
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var out = ({}/*:any*/);
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if(opts.bookSheets || opts.bookProps) {
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if(wb.Sheets) sheets = wb.Sheets.map(function pluck(x){ return x.name; });
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else if(props.Worksheets && props.SheetNames.length > 0) sheets=props.SheetNames;
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if(opts.bookProps) { out.Props = props; out.Custprops = custprops; }
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if(opts.bookSheets && typeof sheets !== 'undefined') out.SheetNames = sheets;
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if(opts.bookSheets ? out.SheetNames : opts.bookProps) return out;
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}
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sheets = {};
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var deps = {};
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if(opts.bookDeps && dir.calcchain) deps=parse_cc(getzipdata(zip, strip_front_slash(dir.calcchain)),dir.calcchain,opts);
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var i=0;
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var sheetRels = ({}/*:any*/);
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var path, relsPath;
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{
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var wbsheets = wb.Sheets;
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props.Worksheets = wbsheets.length;
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props.SheetNames = [];
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for(var j = 0; j != wbsheets.length; ++j) {
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props.SheetNames[j] = wbsheets[j].name;
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}
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}
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var wbext = xlsb ? "bin" : "xml";
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var wbrelsi = dir.workbooks[0].lastIndexOf("/");
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var wbrelsfile = (dir.workbooks[0].slice(0, wbrelsi+1) + "_rels/" + dir.workbooks[0].slice(wbrelsi+1) + ".rels").replace(/^\//,"");
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if(!safegetzipfile(zip, wbrelsfile)) wbrelsfile = 'xl/_rels/workbook.' + wbext + '.rels';
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var wbrels = parse_rels(getzipstr(zip, wbrelsfile, true), wbrelsfile.replace(/_rels.*/, "s5s"));
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if((dir.metadata || []).length >= 1) {
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/* TODO: MDX and other types of metadata */
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opts.xlmeta = parse_xlmeta(getzipdata(zip, strip_front_slash(dir.metadata[0])),dir.metadata[0],opts);
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}
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if((dir.people || []).length >= 1) {
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opts.people = parse_people_xml(getzipdata(zip, strip_front_slash(dir.people[0])),opts);
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}
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if(wbrels) wbrels = safe_parse_wbrels(wbrels, wb.Sheets);
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/* Numbers iOS hack */
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var nmode = (getzipdata(zip,"xl/worksheets/sheet.xml",true))?1:0;
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wsloop: for(i = 0; i != props.Worksheets; ++i) {
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var stype = "sheet";
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if(wbrels && wbrels[i]) {
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path = 'xl/' + (wbrels[i][1]).replace(/[\/]?xl\//, "");
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if(!safegetzipfile(zip, path)) path = wbrels[i][1];
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if(!safegetzipfile(zip, path)) path = wbrelsfile.replace(/_rels\/.*$/,"") + wbrels[i][1];
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stype = wbrels[i][2];
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} else {
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path = 'xl/worksheets/sheet'+(i+1-nmode)+"." + wbext;
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path = path.replace(/sheet0\./,"sheet.");
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}
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relsPath = path.replace(/^(.*)(\/)([^\/]*)$/, "$1/_rels/$3.rels");
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if(opts && opts.sheets != null) switch(typeof opts.sheets) {
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case "number": if(i != opts.sheets) continue wsloop; break;
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case "string": if(props.SheetNames[i].toLowerCase() != opts.sheets.toLowerCase()) continue wsloop; break;
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default: if(Array.isArray && Array.isArray(opts.sheets)) {
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var snjseen = false;
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for(var snj = 0; snj != opts.sheets.length; ++snj) {
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if(typeof opts.sheets[snj] == "number" && opts.sheets[snj] == i) snjseen=1;
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if(typeof opts.sheets[snj] == "string" && opts.sheets[snj].toLowerCase() == props.SheetNames[i].toLowerCase()) snjseen = 1;
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}
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if(!snjseen) continue wsloop;
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}
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}
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safe_parse_sheet(zip, path, relsPath, props.SheetNames[i], i, sheetRels, sheets, stype, opts, wb, themes, styles);
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}
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out = ({
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Directory: dir,
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Workbook: wb,
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Props: props,
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Custprops: custprops,
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Deps: deps,
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Sheets: sheets,
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SheetNames: props.SheetNames,
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Strings: strs,
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Styles: styles,
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Themes: themes,
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SSF: SSF.get_table()
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}/*:any*/);
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if(opts && opts.bookFiles) {
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if(zip.files) {
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out.keys = entries;
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out.files = zip.files;
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} else {
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out.keys = [];
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out.files = {};
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zip.FullPaths.forEach(function(p, idx) {
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p = p.replace(/^Root Entry[\/]/, "");
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out.keys.push(p);
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out.files[p] = zip.FileIndex[idx];
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});
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}
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}
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if(opts && opts.bookVBA) {
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if(dir.vba.length > 0) out.vbaraw = getzipdata(zip,strip_front_slash(dir.vba[0]),true);
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else if(dir.defaults && dir.defaults.bin === CT_VBA) out.vbaraw = getzipdata(zip, 'xl/vbaProject.bin',true);
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}
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return out;
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}
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/* [MS-OFFCRYPTO] 2.1.1 */
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function parse_xlsxcfb(cfb, _opts/*:?ParseOpts*/)/*:Workbook*/ {
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var opts = _opts || {};
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var f = 'Workbook', data = CFB.find(cfb, f);
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try {
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f = '/!DataSpaces/Version';
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data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
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/*var version = */parse_DataSpaceVersionInfo(data.content);
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/* 2.3.4.1 */
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f = '/!DataSpaces/DataSpaceMap';
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data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
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var dsm = parse_DataSpaceMap(data.content);
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if(dsm.length !== 1 || dsm[0].comps.length !== 1 || dsm[0].comps[0].t !== 0 || dsm[0].name !== "StrongEncryptionDataSpace" || dsm[0].comps[0].v !== "EncryptedPackage")
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throw new Error("ECMA-376 Encrypted file bad " + f);
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/* 2.3.4.2 */
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f = '/!DataSpaces/DataSpaceInfo/StrongEncryptionDataSpace';
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data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
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var seds = parse_DataSpaceDefinition(data.content);
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if(seds.length != 1 || seds[0] != "StrongEncryptionTransform")
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throw new Error("ECMA-376 Encrypted file bad " + f);
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/* 2.3.4.3 */
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f = '/!DataSpaces/TransformInfo/StrongEncryptionTransform/!Primary';
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data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
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/*var hdr = */parse_Primary(data.content);
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} catch(e) {}
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f = '/EncryptionInfo';
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data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
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var einfo = parse_EncryptionInfo(data.content);
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/* 2.3.4.4 */
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f = '/EncryptedPackage';
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data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
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/*global decrypt_agile */
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/*:: declare var decrypt_agile:any; */
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if(einfo[0] == 0x04 && typeof decrypt_agile !== 'undefined') return decrypt_agile(einfo[1], data.content, opts.password || "", opts);
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/*global decrypt_std76 */
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/*:: declare var decrypt_std76:any; */
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if(einfo[0] == 0x02 && typeof decrypt_std76 !== 'undefined') return decrypt_std76(einfo[1], data.content, opts.password || "", opts);
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throw new Error("File is password-protected");
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}
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