85 lines
2.4 KiB
JavaScript
85 lines
2.4 KiB
JavaScript
/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
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var http = require('http');
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var XLSX = require('xlsx');
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var formidable = require('formidable');
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var html = "";
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var PORT = 3000;
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var extmap = {};
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var server = http.createServer(function(req, res) {
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if(req.method !== 'POST') return res.end(html);
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var form = new formidable.IncomingForm();
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form.parse(req, function(err, fields, files) {
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var f = files[Object.keys(files)[0]];
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var wb = XLSX.readFile(f.path);
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var ext = (fields.bookType || "xlsx").toLowerCase();
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res.setHeader('Content-Disposition', 'attachment; filename="download.' + (extmap[ext] || ext) + '";');
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res.end(XLSX.write(wb, {type:"buffer", bookType:ext}));
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});
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}).listen(PORT);
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html = [
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'<pre>',
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'<h3><a href="http://sheetjs.com/">SheetJS File Converter</a></h3>',
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'Upload a file to convert the contents to another format.',
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'',
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'<b>Form Fields</b>:',
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'- bookType: output format type (defaults to "XLSX")',
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'- basename: basename for output file (defaults to "download")',
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'',
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'<form method="POST" enctype="multipart/form-data" action="/">',
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'<input type="file" id="file" name="file"/>',
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'<select name="bookType">',
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[
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["xlsb", "XLSB"],
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["xlsx", "XLSX"],
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["xlsm", "XLSM"],
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["biff8", "BIFF8 XLS"],
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["biff5", "BIFF5 XLS"],
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["biff2", "BIFF2 XLS"],
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["xlml", "SSML 2003"],
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["ods", "ODS"],
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["fods", "Flat ODS"],
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["csv", "CSV"],
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["txt", "Unicode Text"],
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["sylk", "Symbolic Link"],
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["html", "HTML"],
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["dif", "DIF"],
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["dbf", "DBF"],
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["rtf", "RTF"],
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["prn", "Lotus PRN"],
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["eth", "Ethercalc"],
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].map(function(x) { return ' <option value="' + x[0] + '">' + x[1] + '</option>'; }).join("\n"),
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'</select>',
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'<input type="submit" value="Submit Form">',
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'</form>',
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'',
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'<b>Form code:</b>',
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'<form method="POST" enctype="multipart/form-data" action="/">',
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'<input type="file" id="file" name="file"/>',
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'<select name="bookType">',
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'<!-- options here -->',
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'</select>',
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'<input type="submit" value="Submit Form">',
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'</form>',
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'',
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'<b>fetch Code:</b>',
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'var blob = new Blob("1,2,3\\n4,5,6".split("")); // original file',
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'var fd = new FormData();',
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'fd.set("data", blob, "foo.bar");',
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'fd.set("bookType", "xlsb");',
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'var res = await fetch("/", {method:"POST", body:fd});',
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'var data = await res.arrayBuffer();',
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'</pre>'
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].join("\n");
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extmap = {
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"biff2" : "xls",
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"biff5" : "xls",
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"biff8" : "xls",
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"xlml" : "xls"
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};
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console.log('listening on port ' + PORT);
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