c5829b65ea
Serve up markdown based on filename in the data slide folder. Use the index to find what file to use. Removed ability to run code on slide on the server. Wasn't that useful for how much of a pain it is.
110 lines
2.5 KiB
JavaScript
Executable File
110 lines
2.5 KiB
JavaScript
Executable File
#!/usr/bin/env node
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//# vi: ft=javascript
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var fs = require('fs');
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var path = require('path');
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var _ = require('lodash');
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var express = require('express');
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var handlebars = require('handlebars');
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var app = express();
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var staticHandler = express['static'].bind(express);
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app.use((function log() {
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var text = '{{date}} {{req.method}} {{req.url}}';
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var logTemplate = handlebars.compile(text);
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return function (req, res, next) {
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console.log(logTemplate({date: new Date().toISOString(), req: req}));
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next();
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};
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}()));
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function renderError(res, err) {
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console.error(err.toString());
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res.writeHead(500, {'Content-Type': 'text/plain'});
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res.send(err.toString());
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}
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function pathToFile() {
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return path.normalize(
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path.join.apply(null, [__dirname, '..'].concat(_.toArray(arguments)))
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);
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}
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function index(req, res) {
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var indexFile = pathToFile('assets', 'index.html');
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function compileServe(err, text) {
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if (err) {
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renderError(res, err);
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return;
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}
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var tmpl = handlebars.compile(text);
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res.send(tmpl());
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}
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fs.readFile(indexFile, {encoding: 'utf8'}, compileServe);
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}
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app.get('/', index);
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app.get('/slides', function showHandler(req, res) {
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fs.readdir(pathToFile('data', 'slide'), function (err, files) {
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files.sort();
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var jsonFiles = _.filter(files, function (file) {
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return /^\d+\.md$/.test(file);
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});
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res.send(_.map(jsonFiles, function (file) {
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return {
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id: parseInt(file.replace(/\.md$/, ''), 10)
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};
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}));
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});
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});
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app.get(/slide\/(\d+)/, function showHandler(req, res, next) {
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if (!req.xhr) {
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index(req, res);
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return;
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}
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var slideIndex = req.params[0];
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fs.readdir(pathToFile('data', 'slide'), function (err, files) {
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if (err) {
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return renderError(res, err);
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}
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files.sort();
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var markdownFiles = _.filter(files, function (file) {
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return /\.md$/.test(file);
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});
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if (slideIndex > markdownFiles.length) {
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return next();
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}
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var markdownFile = markdownFiles[slideIndex - 1];
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var markdownPath = pathToFile('data', 'slide', markdownFile);
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fs.readFile(markdownPath, {encoding: 'utf8'}, function (err, content) {
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if (err) {
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return renderError(res, err);
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}
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res.send({
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id: parseInt(slideIndex, 10),
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copy: content
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});
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});
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});
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});
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app.use('/data', staticHandler('data'));
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app.use('/vendor', staticHandler('vendor'));
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app.use('/static', staticHandler('static'));
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app.listen(8000);
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