server.js

var sys = require('sys');
var http = require('http');
var querystring = require('querystring');
var express = require('express');
var request = require('request');
var database = require('./database');
var xml2js = require('xml2js');

var config = database.loadJSON(__dirname + "/siteconf.json", "utf-8");
var dataDir = config.dataDir || __dirname + "/fixtures";
var db = database.init(dataDir);
var app = module.exports = express.createServer();

app.configure(function(){
  app.set('views', __dirname + '/views');
  app.set('view engine', 'ejs');
  app.use(express.bodyParser());
  app.use(express.methodOverride());
  app.use(app.router);
  app.use(express.static(__dirname + '/public'));
});

app.configure('development', function() {
  app.use(express.errorHandler({ dumpExceptions: true, showStack: true }));
});

app.configure('production', function(){
  app.use(express.errorHandler());
});

app.get('/', function(req, res){
  res.render('exhibit', {
    page: {id: 'index', title: 'MuseumVille'},
    exhibit: db.newEmptyExhibit(),
    curator: null
  });
});

app.get('/search', function(req, res) {
  var searchString = req.param('q');
  if (!searchString) {
    res.render('search', {
      items: [],
      searchString: searchString,
      page: {
        id: 'search',
        title: 'Add to your exhibit'
      }
    });
    return;
  }
  var searchUri = 'http://api.europeana.eu/api/opensearch.rss?' +
      querystring.stringify({
        searchTerms: searchString,
        qf: 'TYPE:IMAGE',
        wskey: config.europeana.apiKey});

  request({uri: searchUri}, function(error, clientRes, body) {
    if (!error && clientRes.statusCode == 200) {
      var parser = new xml2js.Parser();
      parser.addListener('end', function(result) {
        res.render('search', {
            items: result.channel.item,
            searchString: searchString,
            page: {
              id: 'search',
              title: 'Add to your exhibit'
            }
        });
      });
      parser.parseString(body);
    } else {
      console.log("Could not contact Europeana");
      res.send(500); return;
    }
  });
});

app.get('/exhibits', function(req, res) {
  var bill = db.users['bill'];
  var ted = db.users['ted'];
  var users = [bill, ted];
  res.render('exhibits', {
    page: {id: 'exhibits', title: "MuseumVille - Exhibits" },
    users: users
  });
});

app.get('/:userId', function(req, res) {
  var data = db.users[req.params.userId];
  if (!data) { res.send(404); return; }
  res.render('curator', {
    page: {id: 'curator', title: "MuseumVille - " + data.name},
    curator: data
  });
});

app.all('/:userId/exhibit/:exhibitId', function(req, res, next) {
  req.curator = db.users[req.params.userId];
  if (!req.curator) { res.send(404); return; }
  req.exhibit = req.curator.exhibits[parseInt(req.params.exhibitId)];
  if (!req.exhibit) { res.send(404); return; }
  next();
});

app.get('/:userId/exhibit/:exhibitId', function(req, res) {
  for (var i=req.exhibit.items.length; i < 5; i++) {
    req.exhibit.items.push(db.newEmptyItem());
  }
  res.render('exhibit', {
    page: {id: 'exhibit',
      title: "MuseumVille - " + req.curator.name + " - " + req.exhibit.name},
    curator: req.curator,
    exhibit: req.exhibit
  });
});

app.post('/:userId/exhibit/:exhibitId', function(req, res) {
  if (req.accepts('json') && req.body.subject) {
    db.addItem(req.curator, req.exhibit, req.body);
    res.send(200);
  }
});

app.listen(config.serverPort);
console.log("Express server listening on port %d", app.address().port);