98 lines
3.4 KiB
JavaScript
98 lines
3.4 KiB
JavaScript
// plemp.rb - The Plemp! application, create your own on-line pile of junk!
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//
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// Plemp! is Copyright © 2012 Paul van Tilburg <paul@mozcode.nl>
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//
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// This program is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free Software
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// Foundation; either version 2 of the License, or (at your option) any later
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// version.
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var express = require("express"),
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form = require("connect-form"),
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fs = require('fs'),
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util = require("util")
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// Set up the Node Express application.
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var app = express.createServer(form({ keepExtensions: true,
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uploadDir: __dirname + '/upload' }));
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var draggables = {};
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// Initialise the draggables info.
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fs.readdir(__dirname + '/upload', function (err, files) {
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if (err)
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throw(err)
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for (var i in files) {
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if (files[i][0] == ".")
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continue;
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draggables[files[i]] = {left: 350, top: 200};
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}
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});
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// Application settings and middleware configuration.
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app.configure(function() {
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app.use(express.logger());
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app.use(express.static(__dirname + '/public'));
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app.use(express.bodyParser());
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app.use(express.methodOverride());
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app.use(app.router);
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app.use(express.errorHandler({ dumpExceptions: true, showStack: true }));
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});
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// Server the main index file statically for now.
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app.get('/', function(req, res) {
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res.redirect('/index.html');
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});
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// The draggable route: provides direct access to the HTML generating code
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// for draggable objects.
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app.get('/draggable/:id', function(req, res) {
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var file = "upload/" + req.params.id;
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// Stuff taken from the Camping implementation.
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drag = draggables[req.params.id];
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var default_style = "left:" + drag.left + "px;top:" + drag.top + "px;";
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console.log("Draggable: " + file);
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res.send('<img class="draggable" id="' + req.params.id + '" ' +
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'style="' + default_style + '" src="' + file + '">');
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});
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// The current route: accessed through AJAX requests by the main page
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// for getting the current (global) state (positions) of the draggables.
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app.get('/current', function(req, res) {
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// Retrieve the current status of the draggables and return in JSON format.
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res.send(draggables);
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});
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// The position save route: access through AJAX request by the main page
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// for committing position changes of the draggables to the database, i.e. the
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// global state.
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app.post('/savepos/:id', function(req, res) {
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// Set the position for the file with the given ID.
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console.log("Got position for " + req.params.id + ";" +
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" left: " + req.body.left +
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" top: " + req.body.top);
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var new_pos = draggables[req.params.id];
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new_pos.top = req.body.top;
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new_pos.left = req.body.left;
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});
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// The upload route: handles uploads from the main site. This can either
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// be a file or some pasted text. After upload the controler redirects to
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// the main page which includes the just uploaded file.
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app.post('/upload', function(req, res, next) {
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req.form.complete(function(err, fields, files) {
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if (err) {
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next(err);
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}
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else {
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draggables[files.file.filename] = [350,200];
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console.log('File %s uploaded to %s', files.file.filename,
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files.file.path);
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}
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});
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res.redirect('home');
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});
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// Start the application.
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app.listen(3300);
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console.log('Plemp! started on http://127.0.0.1:%d/', app.address().port)
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