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// This file tests channel event sinks (bug 315598 et al)

"use strict";

const { HttpServer } = ChromeUtils.importESModule(
  "resource://testing-common/httpd.sys.mjs"
);

ChromeUtils.defineLazyGetter(this, "URL", function () {
  return "http://localhost:" + httpserv.identity.primaryPort;
});

const sinkCID = Components.ID("{14aa4b81-e266-45cb-88f8-89595dece114}");
const sinkContract = "@mozilla.org/network/unittest/channeleventsink;1";

const categoryName = "net-channel-event-sinks";

/**
 * This object is both a factory and an nsIChannelEventSink implementation (so, it
 * is de-facto a service). It's also an interface requestor that gives out
 * itself when asked for nsIChannelEventSink.
 */
var eventsink = {
  QueryInterface: ChromeUtils.generateQI(["nsIFactory", "nsIChannelEventSink"]),
  createInstance: function eventsink_ci(iid) {
    return this.QueryInterface(iid);
  },

  asyncOnChannelRedirect: function eventsink_onredir() {
    // veto
    this.called = true;
    throw Components.Exception("", Cr.NS_BINDING_ABORTED);
  },

  getInterface: function eventsink_gi(iid) {
    if (iid.equals(Ci.nsIChannelEventSink)) {
      return this;
    }
    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
  },

  called: false,
};

var listener = {
  expectSinkCall: true,

  onStartRequest: function test_onStartR(request) {
    try {
      // Commenting out this check pending resolution of bug 255119
      //if (Components.isSuccessCode(request.status))
      //  do_throw("Channel should have a failure code!");

      // The current URI must be the original URI, as all redirects have been
      // cancelled
      if (
        !(request instanceof Ci.nsIChannel) ||
        !request.URI.equals(request.originalURI)
      ) {
        do_throw(
          "Wrong URI: Is <" +
            request.URI.spec +
            ">, should be <" +
            request.originalURI.spec +
            ">"
        );
      }

      if (request instanceof Ci.nsIHttpChannel) {
        // As we expect a blocked redirect, verify that we have a 3xx status
        Assert.equal(Math.floor(request.responseStatus / 100), 3);
        Assert.equal(request.requestSucceeded, false);
      }

      Assert.equal(eventsink.called, this.expectSinkCall);
    } catch (e) {
      do_throw("Unexpected exception: " + e);
    }

    throw Components.Exception("", Cr.NS_ERROR_ABORT);
  },

  onDataAvailable: function test_ODA() {
    do_throw("Should not get any data!");
  },

  onStopRequest: function test_onStopR() {
    if (this._iteration <= 2) {
      run_test_continued();
    } else {
      do_test_pending();
      httpserv.stop(do_test_finished);
    }
    do_test_finished();
  },

  _iteration: 1,
};

function makeChan(url) {
  return NetUtil.newChannel({ uri: url, loadUsingSystemPrincipal: true });
}

var httpserv = null;

function run_test() {
  httpserv = new HttpServer();
  httpserv.registerPathHandler("/redirect", redirect);
  httpserv.registerPathHandler("/redirectfile", redirectfile);
  httpserv.start(-1);

  Components.manager.nsIComponentRegistrar.registerFactory(
    sinkCID,
    "Unit test Event sink",
    sinkContract,
    eventsink
  );

  // Step 1: Set the callbacks on the listener itself
  var chan = makeChan(URL + "/redirect");
  chan.notificationCallbacks = eventsink;

  chan.asyncOpen(listener);

  do_test_pending();
}

function run_test_continued() {
  eventsink.called = false;

  var chan;
  if (listener._iteration == 1) {
    // Step 2: Category entry
    Services.catMan.addCategoryEntry(
      categoryName,
      "unit test",
      sinkContract,
      false,
      true
    );
    chan = makeChan(URL + "/redirect");
  } else {
    // Step 3: Global contract id
    Services.catMan.deleteCategoryEntry(categoryName, "unit test", false);
    listener.expectSinkCall = false;
    chan = makeChan(URL + "/redirectfile");
  }

  listener._iteration++;
  chan.asyncOpen(listener);

  do_test_pending();
}

// PATHS

// /redirect
function redirect(metadata, response) {
  response.setStatusLine(metadata.httpVersion, 301, "Moved Permanently");
  response.setHeader(
    "Location",
    "http://localhost:" + metadata.port + "/",
    false
  );

  var body = "Moved\n";
  response.bodyOutputStream.write(body, body.length);
}

// /redirectfile
function redirectfile(metadata, response) {
  response.setStatusLine(metadata.httpVersion, 301, "Moved Permanently");
  response.setHeader("Content-Type", "text/plain", false);
  response.setHeader("Location", "file:///etc/", false);

  var body = "Attempted to move to a file URI, but failed.\n";
  response.bodyOutputStream.write(body, body.length);
}