server.js

/* istanbul ignore else */
if (process.env.NODE_ENV === 'test')
  var configPath = './testing_config.js';
else
  var configPath = './config.js';

var config = require(configPath);
var strings = require('./strings.js');

var restify = require('restify');
var fs = require('fs');
var path = require('path');

var FORBIDDEN_CODE = 403;
var FORBIDDEN_ERROR = {error: {code: 'FORBIDDEN',
                               message: strings.FORBIDDEN}};
function SEND_FORBIDDEN(req, res, next) {
  res.send(FORBIDDEN_CODE, FORBIDDEN_ERROR);
}

var server = restify.createServer();
server.use(restify.queryParser());  // Allows us to access req.query
server.name = 'Hook to Deploy';

server.get('/hook/:hookName', function(req, res, next) {
  if (!config.hooks.hasOwnProperty(req.params.hookName) ||   // hook does not exist or
      !req.query.hasOwnProperty('key')) {                    // no key provided
    SEND_FORBIDDEN(req, res, next);
    return;
  }

  var hook = config.hooks[req.params.hookName];
  if (req.query.key !== hook.key) {                          // hook key is incorrect
    SEND_FORBIDDEN(req, res, next);
    return;
  }
  
  hook.action(req, res);  // Hook must handle res.send()
});

server.get('/results/:filename', function(req, res, next) {
  var resultsPath = path.join(config.resultsFolder, req.params.filename);
  if (fs.existsSync(resultsPath) && fs.statSync(resultsPath).isFile()) {
    fs.readFile(resultsPath, {encoding: 'utf8'}, function(err, jsonFile) {
      if (err) {
        res.send(500, {error: err});
      } else {
        var data = JSON.parse(jsonFile);
        res.send(data);
      }
    });
  } else {
    SEND_FORBIDDEN(req, res, next);
  }
});

server.on('NotFound', SEND_FORBIDDEN);
server.on('MethodNotAllowed', SEND_FORBIDDEN);

server.listen(config.port, function() {
  console.log('%s listening on %s', server.name, server.url);
});