64 lines
2 KiB
JavaScript
64 lines
2 KiB
JavaScript
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import express from "express";
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import cors from "cors";
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import bodyParser from "body-parser";
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import path from "path";
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import formidable from "formidable";
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import shellExec from "shell-exec";
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const app = express();
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const port = process.env.PORT || 4000;
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app.use(cors());
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app.use(bodyParser.urlencoded({ extended: true }));
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app.use(bodyParser.json());
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// Show form for on-demand tiling
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app.get("/", async (req, res) => res.sendFile(path.resolve(__dirname+'/form.html')));
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// Handle POST for on-demand tiling
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app.post("/", async (req, res) => {
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let form = new formidable.IncomingForm();
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form.parse(req, (err, fields, files) => {
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const formats = ['pdf','ps'];
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const sizes = ['full', 'a4','a3','a2','a1','a0','letter','tabloid'];
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if(
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err ||
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typeof files.svg === "undefined" ||
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formats.indexOf(fields.format) === -1 ||
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sizes.indexOf(fields.size) === -1
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) return res.sendFile(path.resolve(__dirname+'/form.html'));
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let upload = files.svg.path;
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let cmd;
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if(fields.size === "full") { // Do not tile
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let target = `/tmp/pattern.${fields.format}`;
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cmd = `/usr/bin/inkscape --export-${fields.format}=${target} ${upload}`;
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shellExec(cmd).then(() => {
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return res.sendFile(target);
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});
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} else { // Do tile
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let untiled = "/tmp/untiled.ps";
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let tiled = "/tmp/tiled.ps";
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cmd = `/usr/bin/inkscape --export-ps=${untiled} ${upload}`;
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shellExec(cmd).then(() => {
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cmd = `/usr/local/bin/tile -a -m${fields.size} -s1 -t"On-demand tiler" ${untiled} > ${tiled}`;
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shellExec(cmd).then(() => {
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if(fields.format === "ps") return res.sendFile(tiled);
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cmd = `/usr/bin/ps2pdf14 ${tiled} ${tiled}.pdf`;
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shellExec(cmd).then(() => {
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return res.sendFile(tiled+'.pdf');
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});
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});
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});
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}
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});
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});
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// TODO: Provide API endpoint
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app.post("/api", async (req, res) => {
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});
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app.listen(port, err => {
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if (err) console.error('Error occured', err);
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console.log(`> listening on port ${port}`);
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});
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