netwerk/test/unit/test_pac_reload_after_network_change.js

   1 "use strict";
   2
   3 const { HttpServer } = ChromeUtils.importESModule(
   4   "resource://testing-common/httpd.sys.mjs"
   5 );
   6 XPCOMUtils.defineLazyServiceGetter(
   7   this,
   8   "gProxyService",
   9   "@mozilla.org/network/protocol-proxy-service;1",
  10   "nsIProtocolProxyService"
  11 );
  12 var { setTimeout } = ChromeUtils.importESModule(
  13   "resource://gre/modules/Timer.sys.mjs"
  14 );
  15
  16 let pacServer;
  17 const proxyPort = 4433;
  18
  19 add_setup(async function () {
  20   pacServer = new HttpServer();
  21   pacServer.registerPathHandler(
  22     "/proxy.pac",
  23     function handler(metadata, response) {
  24       let content = `function FindProxyForURL(url, host) { return "HTTPS localhost:${proxyPort}"; }`;
  25       response.setHeader("Content-Length", `${content.length}`);
  26       response.bodyOutputStream.write(content, content.length);
  27     }
  28   );
  29   pacServer.start(-1);
  30 });
  31
  32 registerCleanupFunction(async () => {
  33   Services.prefs.clearUserPref("network.proxy.type");
  34   Services.prefs.clearUserPref("network.proxy.autoconfig_url");
  35   Services.prefs.clearUserPref("network.proxy.reload_pac_delay");
  36 });
  37
  38 async function getProxyInfo() {
  39   return new Promise(resolve => {
  40     let uri = Services.io.newURI("http://www.mozilla.org/");
  41     gProxyService.asyncResolve(uri, 0, {
  42       onProxyAvailable(_req, _uri, pi, _status) {
  43         resolve(pi);
  44       },
  45     });
  46   });
  47 }
  48
  49 // Test if we can successfully get PAC when the PAC server is available.
  50 add_task(async function testPAC() {
  51   // Configure PAC
  52   Services.prefs.setIntPref("network.proxy.type", 2);
  53   Services.prefs.setCharPref(
  54     "network.proxy.autoconfig_url",
  55     `http://localhost:${pacServer.identity.primaryPort}/proxy.pac`
  56   );
  57
  58   let pi = await getProxyInfo();
  59   Assert.equal(pi.port, proxyPort, "Expected proxy port to be the same");
  60   Assert.equal(pi.type, "https", "Expected proxy type to be https");
  61 });
  62
  63 // When PAC server is down, we should not use proxy at all.
  64 add_task(async function testWhenPACServerDown() {
  65   Services.prefs.setIntPref("network.proxy.reload_pac_delay", 0);
  66   await new Promise(resolve => pacServer.stop(resolve));
  67
  68   Services.obs.notifyObservers(null, "network:link-status-changed", "changed");
  69
  70   // eslint-disable-next-line mozilla/no-arbitrary-setTimeout
  71   await new Promise(resolve => setTimeout(resolve, 3000));
  72
  73   let pi = await getProxyInfo();
  74   Assert.equal(pi, null, "should have no proxy");
  75 });