EventSource and basic http authentication

Question

Does anyone know if it is possible to send basic http authentication credentials with EventSource?

Answer 1

I'm looking for a solution to the same problem. This post here says this:

Another caveat is that as far as we know, you cannot change the HTTP headers when using EventSource, which means you have to submit an authorization query string param with the value that you would have inserted using HTTP Basic Auth: a base64 encoded concatenation of your login and a token.

Here is the code from the post:

// First, we create the event source object, using the right URL.
var url = "https://stream.superfeedr.com/?";
url += "&hub.mode=retrieve";
url += "&hub.topic=http%3A%2F%2Fpush-pub.appspot.com%2Ffeed";
url += "&authorization=anVsaWVuOjJkNTVjNDhjMDY5MmIzZWFkMjA4NDFiMGViZDVlYzM5";

var source = new EventSource(url);

// When the socket has been open, let's cleanup the UI.
source.onopen = function () {
  var node = document.getElementById('sse-feed');
  while (node.hasChildNodes()) {
    node.removeChild(node.lastChild);
  }
};

// Superfeedr will trigger 'notification' events, which corresponds
// exactly to the data sent to your subscription endpoint 
// (webhook or XMPP JID), with a JSON payload by default.
source.addEventListener("notification", function(e) {
  var notification = JSON.parse(e.data);
  notification.items.sort(function(x, y) {
    return x.published - y.published;
  });
  notification.items.forEach(function(i) {
    var node = document.getElementById('sse-feed');
    var item = document.createElement("li");
    var t = document.createTextNode([new Date(i.published * 1000), i.title, i.content].join(' '));
    item.appendChild(t);
    node.insertBefore(item, node.firstChild);
    // We add the element to the UI.
  });
});

Answer 2

If your talk about cookies (not http auth):

EventSource uses http, so cookies are sent with the EventSource connection request.

Http auth should be supported as any other http url, although from the spec CORS+http auth is not supported.