server/web/http.js

   1 'use strict';
   2
   3 var http = require('http');
   4 var useragent = require('useragent');
   5
   6 var ServerResponsePrototype = http.ServerResponse.prototype;
   7 var IncomingMessagePrototype = http.IncomingMessage.prototype;
   8
   9 /* Monkey patch onto the response */
  10 /*
  11  * This is needed as connect/express attempt to be too smart for their own good behind proxies (like NGINX) and convert relative URLS into absolute URLS. Unfortunately behind a proxy the URL will proably we wrong.
  12  * TODO: raise this as a bug in express
  13  */
  14 ServerResponsePrototype.relativeRedirect = function(status, url) {
  15   var req = this.req;
  16   var body;
  17
  18   if (!url) {
  19     url = status;
  20     status = 302;
  21   }
  22
  23   // Support text/{plain,html} by default
  24   if (req.accepts('html')) {
  25     body =
  26       '<p>' +
  27       http.STATUS_CODES[status] +
  28       '. Redirecting to <a href="' +
  29       url +
  30       '">' +
  31       url +
  32       '</a></p>';
  33     this.header('Content-Type', 'text/html');
  34   } else {
  35     body = http.STATUS_CODES[status] + '. Redirecting to ' + url;
  36     this.header('Content-Type', 'text/plain');
  37   }
  38
  39   // Respond
  40   this.statusCode = status;
  41   this.header('Location', url);
  42   this.end(body);
  43 };
  44
  45 IncomingMessagePrototype.getParsedUserAgent = function() {
  46   if (this._parsedUserAgent) {
  47     return this._parsedUserAgent;
  48   }
  49
  50   var parsedUserAgent = useragent.parse(this.headers['user-agent']);
  51   this._parsedUserAgent = parsedUserAgent;
  52   return parsedUserAgent;
  53 };