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node_modules/sockjs/lib/trans-jsonp.js 3.13 KB
aaac7fed   liuqimichale   add
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  // Generated by CoffeeScript 1.12.7
  (function() {
    var JsonpReceiver, transport,
      extend = 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;
  
    transport = require('./transport');
  
    JsonpReceiver = (function(superClass) {
      extend(JsonpReceiver, superClass);
  
      JsonpReceiver.prototype.protocol = "jsonp-polling";
  
      JsonpReceiver.prototype.max_response_size = 1;
  
      function JsonpReceiver(req, res, options, callback1) {
        this.callback = callback1;
        JsonpReceiver.__super__.constructor.call(this, req, res, options);
      }
  
      JsonpReceiver.prototype.doSendFrame = function(payload) {
        return JsonpReceiver.__super__.doSendFrame.call(this, "/**/" + this.callback + "(" + JSON.stringify(payload) + ");\r\n");
      };
  
      return JsonpReceiver;
  
    })(transport.ResponseReceiver);
  
    exports.app = {
      jsonp: function(req, res, _, next_filter) {
        var callback;
        if (!('c' in req.query || 'callback' in req.query)) {
          throw {
            status: 500,
            message: '"callback" parameter required'
          };
        }
        callback = 'c' in req.query ? req.query['c'] : req.query['callback'];
        if (/[^a-zA-Z0-9-_.]/.test(callback) || callback.length > 32) {
          throw {
            status: 500,
            message: 'invalid "callback" parameter'
          };
        }
        res.setHeader('X-Content-Type-Options', 'nosniff');
        res.setHeader('Content-Type', 'application/javascript; charset=UTF-8');
        res.writeHead(200);
        transport.register(req, this, new JsonpReceiver(req, res, this.options, callback));
        return true;
      },
      jsonp_send: function(req, res, query) {
        var d, i, jsonp, len, message, x;
        if (!query) {
          throw {
            status: 500,
            message: 'Payload expected.'
          };
        }
        if (typeof query === 'string') {
          try {
            d = JSON.parse(query);
          } catch (error) {
            x = error;
            throw {
              status: 500,
              message: 'Broken JSON encoding.'
            };
          }
        } else {
          d = query.d;
        }
        if (typeof d === 'string' && d) {
          try {
            d = JSON.parse(d);
          } catch (error) {
            x = error;
            throw {
              status: 500,
              message: 'Broken JSON encoding.'
            };
          }
        }
        if (!d || d.__proto__.constructor !== Array) {
          throw {
            status: 500,
            message: 'Payload expected.'
          };
        }
        jsonp = transport.Session.bySessionId(req.session);
        if (jsonp === null) {
          throw {
            status: 404
          };
        }
        for (i = 0, len = d.length; i < len; i++) {
          message = d[i];
          jsonp.didMessage(message);
        }
        res.setHeader('Content-Length', '2');
        res.setHeader('Content-Type', 'text/plain; charset=UTF-8');
        res.writeHead(200);
        res.end('ok');
        return true;
      }
    };
  
  }).call(this);