jackson/lib/application.js

Jackson, the web application framework

// Generated by CoffeeScript 1.9.3
(function() {
  var Application, CLI, Controller, ECT, Router, addClassHelpers, clone, extend, fs, http, jacksonVersion, path, ref, util,
    bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
    slice = [].slice,
    extend1 = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  http = require('http');

  fs = require('fs');

  path = require('path');

  util = require('util');

  require('colors');

  ECT = require('ect');

  Router = require('./router');

  Controller = require('./controller');

  CLI = require('./cli');

  ref = require('./util'), extend = ref.extend, clone = ref.clone, addClassHelpers = ref.addClassHelpers, jacksonVersion = ref.jacksonVersion;

  Application = (function() {
    addClassHelpers(Application);

    Application.prototype.jacksonVersion = jacksonVersion;

    Application.route = function() {
      var ref1;
      return (ref1 = (this.router || (this.router = new Router))).route.apply(ref1, arguments);
    };

    Application.resource = function() {
      var ref1;
      return (ref1 = (this.router || (this.router = new Router))).resource.apply(ref1, arguments);
    };

    Application.helper = function(name, fn) {
      this.helpers = clone(this.helpers);
      return this.helpers[name] = fn;
    };

    Application.prototype.options = {
      logRequests: true
    };

    function Application(options) {
      this.dispatchReq = bind(this.dispatchReq, this);
      this.options = clone(this.options, options);
      this.name || (this.name = this.constructor.name);
      this.repl || (this.repl = {});
      this._ectCache || (this._ectCache = {});
      if (typeof this.initialize === "function") {
        this.initialize();
      }
    }

    Application.prototype.listen = function() {
      var args, cb, desc, host, i, ref1, socketOrPort;
      socketOrPort = arguments[0], args = 3 <= arguments.length ? slice.call(arguments, 1, i = arguments.length - 1) : (i = 1, []), cb = arguments[i++];
      if (typeof cb !== 'function') {
        args.push(cb);
        cb = null;
      }
      if (typeof socketOrPort === 'number') {
        host = args[0] || 'localhost';
        desc = host.yellow + ":" + (socketOrPort.toString().green);
      } else {
        if (fs.existsSync(socketOrPort) && fs.statSync(socketOrPort).isSocket()) {
          fs.unlinkSync(socketOrPort);
        }
        desc = socketOrPort.white;
      }
      this._server = http.createServer(this.dispatchReq);
      return (ref1 = this._server).listen.apply(ref1, [socketOrPort].concat(slice.call(args), [(function(_this) {
        return function() {
          _this.log("Listening on " + desc + ", pid " + (process.pid.toString().red));
          return typeof cb === "function" ? cb.apply(null, [socketOrPort].concat(slice.call(args))) : void 0;
        };
      })(this)]));
    };

    Application.prototype.startRepl = function() {
      var Jackson, context, utils;
      Jackson = require('..');
      utils = require('./util');
      context = require('repl').start({
        prompt: this.name + "> ",
        useGlobal: true,
        useColors: true
      }).context;
      extend(context, Jackson, {
        Jackson: Jackson,
        jacksonVersion: jacksonVersion
      }, utils, {
        app: this
      }, this.repl);
      context[this.constructor.name] = this.constructor;
      return context[this.name] = this.constructor;
    };

    Application.prototype.startCli = function() {
      return new CLI(this).run();
    };

    Application.prototype.mount = function(urlPrefix, appOrFn) {
      this._mounts || (this._mounts = {});
      if (urlPrefix[urlPrefix.length - 1] !== '/') {
        urlPrefix += '/';
      }
      return this._mounts[urlPrefix] = appOrFn;
    };

    Application.prototype.dispatchReq = function(req, res) {
      req._timestamp = Date.now();
      return this.dispatchUrl(req, res, req.method, req.url);
    };

    Application.prototype.dispatchUrl = function(req, res, method, url) {
      var appOrFn, mountPrefix, ref1, ref2, route, urlWithSlash;
      if (this._mounts != null) {
        urlWithSlash = url[url.length - 1] === '/' ? url : url + '/';
        ref1 = this._mounts;
        for (mountPrefix in ref1) {
          appOrFn = ref1[mountPrefix];
          if (urlWithSlash === mountPrefix || url.slice(0, mountPrefix.length) === mountPrefix) {
            url = url.slice(mountPrefix.length - 1) || '/';
            if (appOrFn instanceof Jackson.Application) {
              return appOrFn.dispatchUrl(req, res, method, url);
            } else if (typeof appOrFn === 'function') {
              req.url = url;
              appOrFn(req, res);
            }
          }
        }
      }
      route = (ref2 = this.constructor.router) != null ? ref2.match(method, url) : void 0;
      if (this.options.logRequests) {
        res.on('finish', this.bind(this.logRequest, req, res));
      }
      if (route) {
        return this.dispatch(req, res, route);
      } else {
        return this.render(req, res, 'notFound');
      }
    };

    Application.prototype.dispatch = function(req, res, route) {
      var action, controller, fn;
      fn = route.fn, controller = route.controller, action = route.action;
      if ((controller != null) && action) {
        controller = this.lookup(controller);
        if (controller.prototype instanceof Controller) {
          new controller(this, req, res, route).callAction(action);
        } else {
          fn = controller.prototype[action];
        }
      }
      if (fn) {
        controller = new Controller(this, req, res, route);
        return controller.applyAsAction(fn);
      }
    };

    Application.prototype.render = function() {
      var action, args, ref1, req, res;
      req = arguments[0], res = arguments[1], action = arguments[2], args = 4 <= arguments.length ? slice.call(arguments, 3) : [];
      return (ref1 = new this.constructor.DefaultHandlers(this, req, res)).apply.apply(ref1, [action].concat(slice.call(args)));
    };

    Application.prototype.lookup = function(path) {
      return path.split('.').reduce((function(obj, key) {
        if (key) {
          return obj[key];
        } else {
          return obj;
        }
      }), this.constructor);
    };

    Application.prototype.renderTemplate = function(templateRoot, tpl, context) {
      var base;
      templateRoot = templateRoot || this.templateRoot || path.join(process.cwd(), 'templates');
      (base = this._ectCache)[templateRoot] || (base[templateRoot] = ECT({
        watch: true,
        root: templateRoot
      }));
      return this._ectCache[templateRoot].render(tpl, context);
    };

    Application.prototype.log = function() {
      var msgs;
      msgs = 1 <= arguments.length ? slice.call(arguments, 0) : [];
      msgs = [new Date().toISOString().green, '|', this.name.yellow, '|'].concat(slice.call(msgs));
      return console.log.apply(console, msgs);
    };

    Application.prototype.logRequest = function(req, res) {
      var msTaken, status, statusColor;
      status = res.statusCode.toString();
      statusColor = (function() {
        switch (status[0]) {
          case '2':
            return 'green';
          case '4':
            return 'yellow';
          case '5':
            return 'red';
          default:
            return 'blue';
        }
      })();
      msTaken = Date.now() - req._timestamp;
      return this.log(status[statusColor], req.method.yellow, req.url.white, (msTaken + "ms").yellow, req.connection.remoteAddress);
    };

    return Application;

  })();

  Application.DefaultHandlers = (function(superClass) {
    extend1(DefaultHandlers, superClass);

    function DefaultHandlers() {
      return DefaultHandlers.__super__.constructor.apply(this, arguments);
    }

    DefaultHandlers.prototype.templateRoot = __dirname + '/../tpl';

    DefaultHandlers.prototype.initialize = function() {
      this.view.inspect = util.inspect;
      return this.view.req = this.req;
    };

    DefaultHandlers.prototype.notFound = function() {
      this.status = 404;
      return this.render('404.html');
    };

    DefaultHandlers.prototype.error = function(error) {
      this.status = 500;
      return this.render('500.html', {
        error: error
      });
    };

    return DefaultHandlers;

  })(Controller);

  module.exports = Application;

}).call(this);