// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

"use strict";

var { classes: Cc, interfaces: Ci, utils: Cu } = Components;

Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/Messaging.jsm");

function promiseLoadEvent(browser, url, eventType="load", runBeforeLoad) {
  return new Promise((resolve, reject) => {
    do_print("Wait browser event: " + eventType);

    function handle(event) {
      if (event.target != browser.contentDocument || event.target.location.href == "about:blank" || (url && event.target.location.href != url)) {
        do_print("Skipping spurious '" + eventType + "' event" + " for " + event.target.location.href);
        return;
      }

      browser.removeEventListener(eventType, handle, true);
      do_print("Browser event received: " + eventType);
      resolve(event);
    }

    browser.addEventListener(eventType, handle, true);

    if (runBeforeLoad) {
      runBeforeLoad();
    }
    if (url) {
      browser.loadURI(url);
    }
  });
}

// Test that the Tracking Protection is active and has the correct state when
// tracking content is blocked (Bug 1063831)

// Code is mostly stolen from:
// http://dxr.mozilla.org/mozilla-central/source/browser/base/content/test/general/browser_trackingUI.js

var TABLE = "urlclassifier.trackingTable";

// Update tracking database
function doUpdate() {
  // Add some URLs to the tracking database (to be blocked)
  var testData = "tracking.example.com/";
  var testUpdate =
    "n:1000\ni:test-track-simple\nad:1\n" +
    "a:524:32:" + testData.length + "\n" +
    testData;

  let dbService = Cc["@mozilla.org/url-classifier/dbservice;1"].getService(Ci.nsIUrlClassifierDBService);

  return new Promise((resolve, reject) => {
    let listener = {
      QueryInterface: function(iid) {
        if (iid.equals(Ci.nsISupports) || iid.equals(Ci.nsIUrlClassifierUpdateObserver))
          return this;

        throw Cr.NS_ERROR_NO_INTERFACE;
      },
      updateUrlRequested: function(url) { },
      streamFinished: function(status) { },
      updateError: function(errorCode) {
        ok(false, "Couldn't update classifier.");
        resolve();
      },
      updateSuccess: function(requestedTimeout) {
        resolve();
      }
    };

    dbService.beginUpdate(listener, "test-track-simple", "");
    dbService.beginStream("", "");
    dbService.updateStream(testUpdate);
    dbService.finishStream();
    dbService.finishUpdate();
  });
}

var BrowserApp = Services.wm.getMostRecentWindow("navigator:browser").BrowserApp;

// Tests the tracking protection UI in private browsing. By default, tracking protection is
// enabled in private browsing ("privacy.trackingprotection.pbmode.enabled").
add_task(function* test_tracking_pb() {
  // Load a blank page
  let browser = BrowserApp.addTab("about:blank", { selected: true, parentId: BrowserApp.selectedTab.id, isPrivate: true }).browser;
  yield new Promise((resolve, reject) => {
    browser.addEventListener("load", function startTests(event) {
      browser.removeEventListener("load", startTests, true);
      Services.tm.mainThread.dispatch(resolve, Ci.nsIThread.DISPATCH_NORMAL);
    }, true);
  });

  // Populate and use 'test-track-simple' for tracking protection lookups
  Services.prefs.setCharPref(TABLE, "test-track-simple");
  yield doUpdate();

  // Point tab to a test page NOT containing tracking elements
  yield promiseLoadEvent(browser, "http://tracking.example.org/tests/robocop/tracking_good.html");
  Messaging.sendRequest({ type: "Test:Expected", expected: "unknown" });

  // Point tab to a test page containing tracking elements
  yield promiseLoadEvent(browser, "http://tracking.example.org/tests/robocop/tracking_bad.html");
  Messaging.sendRequest({ type: "Test:Expected", expected: "tracking_content_blocked" });

  // Simulate a click on the "Disable protection" button in the site identity popup.
  // We need to wait for a "load" event because "Session:Reload" will cause a full page reload.
  yield promiseLoadEvent(browser, undefined, undefined, () => {
    Services.obs.notifyObservers(null, "Session:Reload", "{\"allowContent\":true,\"contentType\":\"tracking\"}");
  });
  Messaging.sendRequest({ type: "Test:Expected", expected: "tracking_content_loaded" });

  // Simulate a click on the "Enable protection" button in the site identity popup.
  yield promiseLoadEvent(browser, undefined, undefined, () => {
    Services.obs.notifyObservers(null, "Session:Reload", "{\"allowContent\":false,\"contentType\":\"tracking\"}");
  });
  Messaging.sendRequest({ type: "Test:Expected", expected: "tracking_content_blocked" });

  // Disable tracking protection to make sure we don't show the UI when the pref is disabled.
  Services.prefs.setBoolPref("privacy.trackingprotection.pbmode.enabled", false);

  // Point tab to a test page containing tracking elements
  yield promiseLoadEvent(browser, "http://tracking.example.org/tests/robocop/tracking_bad.html");
  Messaging.sendRequest({ type: "Test:Expected", expected: "unknown" });

  // Point tab to a test page NOT containing tracking elements
  yield promiseLoadEvent(browser, "http://tracking.example.org/tests/robocop/tracking_good.html");
  Messaging.sendRequest({ type: "Test:Expected", expected: "unknown" });

  // Reset the pref before the next testcase
  Services.prefs.clearUserPref("privacy.trackingprotection.pbmode.enabled");
});

add_task(function* test_tracking_not_pb() {
  // Load a blank page
  let browser = BrowserApp.addTab("about:blank", { selected: true }).browser;
  yield new Promise((resolve, reject) => {
    browser.addEventListener("load", function startTests(event) {
      browser.removeEventListener("load", startTests, true);
      Services.tm.mainThread.dispatch(resolve, Ci.nsIThread.DISPATCH_NORMAL);
    }, true);
  });

  // Point tab to a test page NOT containing tracking elements
  yield promiseLoadEvent(browser, "http://tracking.example.org/tests/robocop/tracking_good.html");
  Messaging.sendRequest({ type: "Test:Expected", expected: "unknown" });

  // Point tab to a test page containing tracking elements (tracking protection UI *should not* be shown)
  yield promiseLoadEvent(browser, "http://tracking.example.org/tests/robocop/tracking_bad.html");
  Messaging.sendRequest({ type: "Test:Expected", expected: "unknown" });

  // Enable tracking protection in normal tabs
  Services.prefs.setBoolPref("privacy.trackingprotection.enabled", true);

  // Point tab to a test page containing tracking elements (tracking protection UI *should* be shown)
  yield promiseLoadEvent(browser, "http://tracking.example.org/tests/robocop/tracking_bad.html");
  Messaging.sendRequest({ type: "Test:Expected", expected: "tracking_content_blocked" });
});

run_next_test();