Ümit Tunç
90 lines
2.3 KiB
JavaScript
90 lines
2.3 KiB
JavaScript
const fs = require('fs');
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const path = require('path');
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const express = require('express');
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const bodyParser = require('body-parser');
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const opn = require('opn');
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const ip = require('ip');
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const app = express();
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const options = process.argv.reduce((acc, arg) => {
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const pair = arg.split('=');
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if (pair.length === 2) {
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acc[pair[0]] = pair[1];
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}
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return acc;
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}, {});
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const handleAnnotation = (req, res, handler) => {
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const dir = path.resolve(__dirname, 'annotations');
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if (!fs.existsSync(dir)) {
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fs.mkdirSync(dir);
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}
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handler(dir);
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res.end();
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};
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app.use(bodyParser.json()); // for parsing application/json
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app.use(bodyParser.urlencoded({ extended: true })); // for parsing application/x-www-form-urlencoded
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app.get('/annotations', (req, res) => {
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handleAnnotation(req, res, (dir) => {
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const xfdfFile = (req.query.did) ? path.resolve(dir, `${req.query.did}.xfdf`) : path.resolve(dir, 'default.xfdf');
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if (fs.existsSync(xfdfFile)) {
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res.header('Content-Type', 'text/xml');
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res.send(fs.readFileSync(xfdfFile));
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} else {
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res.status(204);
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}
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});
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});
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app.post('/annotations', (req, res) => {
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handleAnnotation(req, res, (dir) => {
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const xfdfFile = (req.body.did) ? path.resolve(dir, `${req.body.did}.xfdf`) : path.resolve(dir, 'default.xfdf');
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try {
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res.send(fs.writeFileSync(xfdfFile, req.body.data));
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} catch (e) {
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res.status(500);
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}
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});
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res.end();
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});
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app.get('/ip', (req, res) => {
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res.send(ip.address());
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});
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app.get('/', (req, res) => {
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res.redirect('/samples');
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});
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app.get(/\/samples(.*)(\/|\.html)$/, (req, res, next) => {
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if (req.query.key || !options.key) {
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next();
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} else if (req.originalUrl.slice(-10) === 'index.html') {
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res.redirect(`${req.originalUrl}?key=${options.key}`);
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} else {
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res.redirect(`./index.html?key=${options.key}`);
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}
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});
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app.use(express.static(path.resolve(__dirname), {
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setHeaders: (res) => {
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res.set('Service-Worker-Allowed', '/');
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},
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}));
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app.listen(3000, '0.0.0.0', (err) => {
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if (err) {
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console.error(err);
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} else {
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console.info(`Listening at localhost:3000 (http://${ip.address()}:3000)`);
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if (process.argv[2] === 'samples') {
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opn('http://localhost:3000/samples');
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} else if (process.argv[2] === 'doc') {
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opn('http://localhost:3000/doc/PDFTron.WebViewer.html');
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}
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}
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}); |