37 lines
1.4 KiB
JavaScript
37 lines
1.4 KiB
JavaScript
const XLSX = require('xlsx');
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const URL = require('url');
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const request = require('request');
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const do_url = (req, url, res) => {
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request(url.query.url, {encoding:null}, function(err, response, body) {
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if(err) return res.status(500).send(err.toString());
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switch(response.statusCode) {
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case 200: break;
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case 404: return res.status(404).send(`Cannot find ${url.query.url}`);
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default: return res.status(500).send(`Unrecognized status code ${response.statusCode}`);
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}
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const wb = XLSX.read(body, {type:'buffer'});
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const N = url.query.N ? parseInt(url.query.N,10) : 0;
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if(N < 0) {
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switch(url.query.t || "csv") {
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case "json": return res.status(200).send(JSON.stringify(wb.SheetNames.join("\n")));
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default: return res.status(200).send(wb.SheetNames.join("\n"));
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}
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}
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if(N >= wb.SheetNames.length) return res.status(500).send(`Cannot find sheet ${N}`);
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var ws = wb.Sheets[wb.SheetNames[N]];
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switch(url.query.t) {
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case "json": return res.status(200).json(XLSX.utils.sheet_to_json(ws, {header:1, raw:true}));
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case "html": return XLSX.stream.to_html(ws).pipe(res);
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default: XLSX.stream.to_csv(ws).pipe(res);
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}
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});
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};
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module.exports = function(req, res) {
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var url = URL.parse(req.url, true);
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res.setHeader('Access-Control-Allow-Origin', '*');
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if(!url.query.url) return res.status(500).send("Must issue command");
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do_url(req, url, res);
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};
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