rc@73: /**
rc@73:  * Initialization middleware, exposing the
rc@73:  * request and response to eachother, as well
rc@73:  * as defaulting the X-Powered-By header field.
rc@73:  *
rc@73:  * @param {Function} app
rc@73:  * @return {Function}
rc@73:  * @api private
rc@73:  */
rc@73: 
rc@73: exports.init = function(app){
rc@73:   return function expressInit(req, res, next){
rc@73:     if (app.enabled('x-powered-by')) res.setHeader('X-Powered-By', 'Express');
rc@73:     req.res = res;
rc@73:     res.req = req;
rc@73:     req.next = next;
rc@73: 
rc@73:     req.__proto__ = app.request;
rc@73:     res.__proto__ = app.response;
rc@73: 
rc@73:     res.locals = res.locals || Object.create(null);
rc@73: 
rc@73:     next();
rc@73:   };
rc@73: };
rc@73: