/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et: */
/* 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/. */

// This testcase exercises the Protocol Proxy Service

// These are the major sub tests:
// run_filter_test();
// run_filter_test2()
// run_filter_test3()
// run_pref_test();
// run_pac_test();
// run_pac_cancel_test();
// run_proxy_host_filters_test();
// run_myipaddress_test();
// run_failed_script_test();
// run_isresolvable_test();

"use strict";

var ios = Services.io;
var pps = Cc["@mozilla.org/network/protocol-proxy-service;1"].getService();
var prefs = Services.prefs;
var again = true;

/**
 * Test nsIProtocolHandler that allows proxying, but doesn't allow HTTP
 * proxying.
 */
function TestProtocolHandler() {}
TestProtocolHandler.prototype = {
  QueryInterface: ChromeUtils.generateQI(["nsIProtocolHandler"]),
  scheme: "moz-test",
  defaultPort: -1,
  protocolFlags:
    Ci.nsIProtocolHandler.URI_NOAUTH |
    Ci.nsIProtocolHandler.URI_NORELATIVE |
    Ci.nsIProtocolHandler.ALLOWS_PROXY |
    Ci.nsIProtocolHandler.URI_DANGEROUS_TO_LOAD,
  newChannel() {
    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
  },
  allowPort() {
    return true;
  },
};

function TestProtocolHandlerFactory() {}
TestProtocolHandlerFactory.prototype = {
  createInstance(iid) {
    return new TestProtocolHandler().QueryInterface(iid);
  },
};

function register_test_protocol_handler() {
  var reg = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
  reg.registerFactory(
    Components.ID("{4ea7dd3a-8cae-499c-9f18-e1de773ca25b}"),
    "TestProtocolHandler",
    "@mozilla.org/network/protocol;1?name=moz-test",
    new TestProtocolHandlerFactory()
  );
}

function check_proxy(pi, type, host, port, flags, timeout, hasNext) {
  Assert.notEqual(pi, null);
  Assert.equal(pi.type, type);
  Assert.equal(pi.host, host);
  Assert.equal(pi.port, port);
  if (flags != -1) {
    Assert.equal(pi.flags, flags);
  }
  if (timeout != -1) {
    Assert.equal(pi.failoverTimeout, timeout);
  }
  if (hasNext) {
    Assert.notEqual(pi.failoverProxy, null);
  } else {
    Assert.equal(pi.failoverProxy, null);
  }
}

function TestFilter(type, host, port, flags, timeout) {
  this._type = type;
  this._host = host;
  this._port = port;
  this._flags = flags;
  this._timeout = timeout;
}
TestFilter.prototype = {
  _type: "",
  _host: "",
  _port: -1,
  _flags: 0,
  _timeout: 0,
  QueryInterface: ChromeUtils.generateQI(["nsIProtocolProxyFilter"]),
  applyFilter(uri, pi, cb) {
    var pi_tail = pps.newProxyInfo(
      this._type,
      this._host,
      this._port,
      "",
      "",
      this._flags,
      this._timeout,
      null
    );
    if (pi) {
      pi.failoverProxy = pi_tail;
    } else {
      pi = pi_tail;
    }
    cb.onProxyFilterResult(pi);
  },
};

function BasicFilter() {}
BasicFilter.prototype = {
  QueryInterface: ChromeUtils.generateQI(["nsIProtocolProxyFilter"]),
  applyFilter(uri, pi, cb) {
    cb.onProxyFilterResult(
      pps.newProxyInfo(
        "http",
        "localhost",
        8080,
        "",
        "",
        0,
        10,
        pps.newProxyInfo("direct", "", -1, "", "", 0, 0, null)
      )
    );
  },
};

function BasicChannelFilter() {}
BasicChannelFilter.prototype = {
  QueryInterface: ChromeUtils.generateQI(["nsIProtocolProxyChannelFilter"]),
  applyFilter(channel, pi, cb) {
    cb.onProxyFilterResult(
      pps.newProxyInfo(
        "http",
        channel.URI.host,
        7777,
        "",
        "",
        0,
        10,
        pps.newProxyInfo("direct", "", -1, "", "", 0, 0, null)
      )
    );
  },
};

function resolveCallback() {}
resolveCallback.prototype = {
  nextFunction: null,

  QueryInterface: ChromeUtils.generateQI(["nsIProtocolProxyCallback"]),

  onProxyAvailable(req, channel, pi) {
    this.nextFunction(pi);
  },
};

function run_filter_test() {
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });

  // Verify initial state
  var cb = new resolveCallback();
  cb.nextFunction = filter_test0_1;
  pps.asyncResolve(channel, 0, cb);
}

var filter01;
var filter02;

function filter_test0_1(pi) {
  Assert.equal(pi, null);

  // Push a filter and verify the results

  filter01 = new BasicFilter();
  filter02 = new BasicFilter();
  pps.registerFilter(filter01, 10);
  pps.registerFilter(filter02, 20);

  var cb = new resolveCallback();
  cb.nextFunction = filter_test0_2;
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  pps.asyncResolve(channel, 0, cb);
}

function filter_test0_2(pi) {
  check_proxy(pi, "http", "localhost", 8080, 0, 10, true);
  check_proxy(pi.failoverProxy, "direct", "", -1, 0, 0, false);

  pps.unregisterFilter(filter02);

  var cb = new resolveCallback();
  cb.nextFunction = filter_test0_3;
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  pps.asyncResolve(channel, 0, cb);
}

function filter_test0_3(pi) {
  check_proxy(pi, "http", "localhost", 8080, 0, 10, true);
  check_proxy(pi.failoverProxy, "direct", "", -1, 0, 0, false);

  // Remove filter and verify that we return to the initial state

  pps.unregisterFilter(filter01);

  var cb = new resolveCallback();
  cb.nextFunction = filter_test0_4;
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  pps.asyncResolve(channel, 0, cb);
}

var filter03;

function filter_test0_4(pi) {
  Assert.equal(pi, null);
  filter03 = new BasicChannelFilter();
  pps.registerChannelFilter(filter03, 10);
  var cb = new resolveCallback();
  cb.nextFunction = filter_test0_5;
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  pps.asyncResolve(channel, 0, cb);
}

function filter_test0_5(pi) {
  pps.unregisterChannelFilter(filter03);
  check_proxy(pi, "http", "www.mozilla.org", 7777, 0, 10, true);
  check_proxy(pi.failoverProxy, "direct", "", -1, 0, 0, false);
  run_filter_test_uri();
}

function run_filter_test_uri() {
  var cb = new resolveCallback();
  cb.nextFunction = filter_test_uri0_1;
  var uri = ios.newURI("http://www.mozilla.org/");
  pps.asyncResolve(uri, 0, cb);
}

function filter_test_uri0_1(pi) {
  Assert.equal(pi, null);

  // Push a filter and verify the results

  filter01 = new BasicFilter();
  filter02 = new BasicFilter();
  pps.registerFilter(filter01, 10);
  pps.registerFilter(filter02, 20);

  var cb = new resolveCallback();
  cb.nextFunction = filter_test_uri0_2;
  var uri = ios.newURI("http://www.mozilla.org/");
  pps.asyncResolve(uri, 0, cb);
}

function filter_test_uri0_2(pi) {
  check_proxy(pi, "http", "localhost", 8080, 0, 10, true);
  check_proxy(pi.failoverProxy, "direct", "", -1, 0, 0, false);

  pps.unregisterFilter(filter02);

  var cb = new resolveCallback();
  cb.nextFunction = filter_test_uri0_3;
  var uri = ios.newURI("http://www.mozilla.org/");
  pps.asyncResolve(uri, 0, cb);
}

function filter_test_uri0_3(pi) {
  check_proxy(pi, "http", "localhost", 8080, 0, 10, true);
  check_proxy(pi.failoverProxy, "direct", "", -1, 0, 0, false);

  // Remove filter and verify that we return to the initial state

  pps.unregisterFilter(filter01);

  var cb = new resolveCallback();
  cb.nextFunction = filter_test_uri0_4;
  var uri = ios.newURI("http://www.mozilla.org/");
  pps.asyncResolve(uri, 0, cb);
}

function filter_test_uri0_4(pi) {
  Assert.equal(pi, null);
  run_filter_test2();
}

var filter11;
var filter12;

function run_filter_test2() {
  // Push a filter and verify the results

  filter11 = new TestFilter("http", "foo", 8080, 0, 10);
  filter12 = new TestFilter("http", "bar", 8090, 0, 10);
  pps.registerFilter(filter11, 20);
  pps.registerFilter(filter12, 10);

  var cb = new resolveCallback();
  cb.nextFunction = filter_test1_1;
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  pps.asyncResolve(channel, 0, cb);
}

function filter_test1_1(pi) {
  check_proxy(pi, "http", "bar", 8090, 0, 10, true);
  check_proxy(pi.failoverProxy, "http", "foo", 8080, 0, 10, false);

  pps.unregisterFilter(filter12);

  var cb = new resolveCallback();
  cb.nextFunction = filter_test1_2;
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  pps.asyncResolve(channel, 0, cb);
}

function filter_test1_2(pi) {
  check_proxy(pi, "http", "foo", 8080, 0, 10, false);

  // Remove filter and verify that we return to the initial state

  pps.unregisterFilter(filter11);

  var cb = new resolveCallback();
  cb.nextFunction = filter_test1_3;
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  pps.asyncResolve(channel, 0, cb);
}

function filter_test1_3(pi) {
  Assert.equal(pi, null);
  run_filter_test3();
}

var filter_3_1;

function run_filter_test3() {
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  // Push a filter and verify the results asynchronously

  filter_3_1 = new TestFilter("http", "foo", 8080, 0, 10);
  pps.registerFilter(filter_3_1, 20);

  var cb = new resolveCallback();
  cb.nextFunction = filter_test3_1;
  pps.asyncResolve(channel, 0, cb);
}

function filter_test3_1(pi) {
  check_proxy(pi, "http", "foo", 8080, 0, 10, false);
  pps.unregisterFilter(filter_3_1);
  run_pref_test();
}

function run_pref_test() {
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  // Verify 'direct' setting

  prefs.setIntPref("network.proxy.type", 0);

  var cb = new resolveCallback();
  cb.nextFunction = pref_test1_1;
  pps.asyncResolve(channel, 0, cb);
}

function pref_test1_1(pi) {
  Assert.equal(pi, null);

  // Verify 'manual' setting
  prefs.setIntPref("network.proxy.type", 1);

  var cb = new resolveCallback();
  cb.nextFunction = pref_test1_2;
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  pps.asyncResolve(channel, 0, cb);
}

function pref_test1_2(pi) {
  // nothing yet configured
  Assert.equal(pi, null);

  // try HTTP configuration
  prefs.setCharPref("network.proxy.http", "foopy");
  prefs.setIntPref("network.proxy.http_port", 8080);

  var cb = new resolveCallback();
  cb.nextFunction = pref_test1_3;
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  pps.asyncResolve(channel, 0, cb);
}

function pref_test1_3(pi) {
  check_proxy(pi, "http", "foopy", 8080, 0, -1, false);

  prefs.setCharPref("network.proxy.http", "");
  prefs.setIntPref("network.proxy.http_port", 0);

  // try SOCKS configuration
  prefs.setCharPref("network.proxy.socks", "barbar");
  prefs.setIntPref("network.proxy.socks_port", 1203);

  var cb = new resolveCallback();
  cb.nextFunction = pref_test1_4;
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  pps.asyncResolve(channel, 0, cb);
}

function pref_test1_4(pi) {
  check_proxy(pi, "socks", "barbar", 1203, 0, -1, false);
  run_pac_test();
}

function TestResolveCallback(type, nexttest) {
  this.type = type;
  this.nexttest = nexttest;
}
TestResolveCallback.prototype = {
  QueryInterface: ChromeUtils.generateQI(["nsIProtocolProxyCallback"]),

  onProxyAvailable: function TestResolveCallback_onProxyAvailable(
    req,
    channel,
    pi,
    status
  ) {
    dump("*** channelURI=" + channel.URI.spec + ", status=" + status + "\n");

    if (this.type == null) {
      Assert.equal(pi, null);
    } else {
      Assert.notEqual(req, null);
      Assert.notEqual(channel, null);
      Assert.equal(status, 0);
      Assert.notEqual(pi, null);
      check_proxy(pi, this.type, "foopy", 8080, 0, -1, true);
      check_proxy(pi.failoverProxy, "direct", "", -1, -1, -1, false);
    }

    this.nexttest();
  },
};

var originalTLSProxy;

function run_pac_test() {
  var pac =
    "data:text/plain," +
    "function FindProxyForURL(url, host) {" +
    '  return "PROXY foopy:8080; DIRECT";' +
    "}";
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  // Configure PAC

  prefs.setIntPref("network.proxy.type", 2);
  prefs.setCharPref("network.proxy.autoconfig_url", pac);
  pps.asyncResolve(channel, 0, new TestResolveCallback("http", run_pac2_test));
}

function run_pac2_test() {
  var pac =
    "data:text/plain," +
    "function FindProxyForURL(url, host) {" +
    '  return "HTTPS foopy:8080; DIRECT";' +
    "}";
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  // Configure PAC
  originalTLSProxy = prefs.getBoolPref("network.proxy.proxy_over_tls");

  prefs.setCharPref("network.proxy.autoconfig_url", pac);
  prefs.setBoolPref("network.proxy.proxy_over_tls", true);

  pps.asyncResolve(channel, 0, new TestResolveCallback("https", run_pac3_test));
}

function run_pac3_test() {
  var pac =
    "data:text/plain," +
    "function FindProxyForURL(url, host) {" +
    '  return "HTTPS foopy:8080; DIRECT";' +
    "}";
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  // Configure PAC
  prefs.setCharPref("network.proxy.autoconfig_url", pac);
  prefs.setBoolPref("network.proxy.proxy_over_tls", false);

  pps.asyncResolve(channel, 0, new TestResolveCallback(null, run_pac4_test));
}

function run_pac4_test() {
  // Bug 1251332
  let wRange = [
    ["SUN", "MON", "SAT", "MON"], // for Sun
    ["SUN", "TUE", "SAT", "TUE"], // for Mon
    ["MON", "WED", "SAT", "WED"], // for Tue
    ["TUE", "THU", "SAT", "THU"], // for Wed
    ["WED", "FRI", "WED", "SUN"], // for Thu
    ["THU", "SAT", "THU", "SUN"], // for Fri
    ["FRI", "SAT", "FRI", "SUN"], // for Sat
  ];
  let today = new Date().getDay();
  var pac =
    "data:text/plain," +
    "function FindProxyForURL(url, host) {" +
    '  if (weekdayRange("' +
    wRange[today][0] +
    '", "' +
    wRange[today][1] +
    '") &&' +
    '      weekdayRange("' +
    wRange[today][2] +
    '", "' +
    wRange[today][3] +
    '")) {' +
    '    return "PROXY foopy:8080; DIRECT";' +
    "  }" +
    "}";
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  // Configure PAC

  prefs.setIntPref("network.proxy.type", 2);
  prefs.setCharPref("network.proxy.autoconfig_url", pac);
  pps.asyncResolve(
    channel,
    0,
    new TestResolveCallback("http", run_utf8_pac_test)
  );
}

function run_utf8_pac_test() {
  var pac =
    "data:text/plain;charset=UTF-8," +
    "function FindProxyForURL(url, host) {" +
    "  /*" +
    "   U+00A9 COPYRIGHT SIGN: %C2%A9," +
    "   U+0B87 TAMIL LETTER I: %E0%AE%87," +
    "   U+10398 UGARITIC LETTER THANNA: %F0%90%8E%98 " +
    "  */" +
    '  var multiBytes = "%C2%A9 %E0%AE%87 %F0%90%8E%98"; ' +
    "  /* 6 UTF-16 units above if PAC script run as UTF-8; 11 units if run as Latin-1 */ " +
    "  return multiBytes.length === 6 " +
    '         ? "PROXY foopy:8080; DIRECT" ' +
    '         : "PROXY epicfail-utf8:12345; DIRECT";' +
    "}";

  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });

  // Configure PAC
  prefs.setIntPref("network.proxy.type", 2);
  prefs.setCharPref("network.proxy.autoconfig_url", pac);

  pps.asyncResolve(
    channel,
    0,
    new TestResolveCallback("http", run_latin1_pac_test)
  );
}

function run_latin1_pac_test() {
  var pac =
    "data:text/plain," +
    "function FindProxyForURL(url, host) {" +
    "  /* A too-long encoding of U+0000, so not valid UTF-8 */ " +
    '  var multiBytes = "%C0%80"; ' +
    "  /* 2 UTF-16 units because interpreted as Latin-1 */ " +
    "  return multiBytes.length === 2 " +
    '         ? "PROXY foopy:8080; DIRECT" ' +
    '         : "PROXY epicfail-latin1:12345; DIRECT";' +
    "}";

  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });

  // Configure PAC
  prefs.setIntPref("network.proxy.type", 2);
  prefs.setCharPref("network.proxy.autoconfig_url", pac);

  pps.asyncResolve(
    channel,
    0,
    new TestResolveCallback("http", finish_pac_test)
  );
}

function finish_pac_test() {
  prefs.setBoolPref("network.proxy.proxy_over_tls", originalTLSProxy);
  run_pac_cancel_test();
}

function TestResolveCancelationCallback() {}
TestResolveCancelationCallback.prototype = {
  QueryInterface: ChromeUtils.generateQI(["nsIProtocolProxyCallback"]),

  onProxyAvailable: function TestResolveCancelationCallback_onProxyAvailable(
    req,
    channel,
    pi,
    status
  ) {
    dump("*** channelURI=" + channel.URI.spec + ", status=" + status + "\n");

    Assert.notEqual(req, null);
    Assert.notEqual(channel, null);
    Assert.equal(status, Cr.NS_ERROR_ABORT);
    Assert.equal(pi, null);

    prefs.setCharPref("network.proxy.autoconfig_url", "");
    prefs.setIntPref("network.proxy.type", 0);

    run_proxy_host_filters_test();
  },
};

function run_pac_cancel_test() {
  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  // Configure PAC
  var pac =
    "data:text/plain," +
    "function FindProxyForURL(url, host) {" +
    '  return "PROXY foopy:8080; DIRECT";' +
    "}";
  prefs.setIntPref("network.proxy.type", 2);
  prefs.setCharPref("network.proxy.autoconfig_url", pac);

  var req = pps.asyncResolve(channel, 0, new TestResolveCancelationCallback());
  req.cancel(Cr.NS_ERROR_ABORT);
}

var hostList;
var hostIDX;
var bShouldBeFiltered;
var hostNextFX;

function check_host_filters(hl, shouldBe, nextFX) {
  hostList = hl;
  hostIDX = 0;
  bShouldBeFiltered = shouldBe;
  hostNextFX = nextFX;

  if (hostList.length > hostIDX) {
    check_host_filter(hostIDX);
  }
}

function check_host_filters_cb() {
  hostIDX++;
  if (hostList.length > hostIDX) {
    check_host_filter(hostIDX);
  } else {
    hostNextFX();
  }
}

function check_host_filter(i) {
  dump(
    "*** uri=" + hostList[i] + " bShouldBeFiltered=" + bShouldBeFiltered + "\n"
  );
  var channel = NetUtil.newChannel({
    uri: hostList[i],
    loadUsingSystemPrincipal: true,
  });
  var cb = new resolveCallback();
  cb.nextFunction = host_filter_cb;
  pps.asyncResolve(channel, 0, cb);
}

function host_filter_cb(proxy) {
  if (bShouldBeFiltered) {
    Assert.equal(proxy, null);
  } else {
    Assert.notEqual(proxy, null);
    // Just to be sure, let's check that the proxy is correct
    // - this should match the proxy setup in the calling function
    check_proxy(proxy, "http", "foopy", 8080, 0, -1, false);
  }
  check_host_filters_cb();
}

// Verify that hists in the host filter list are not proxied
// refers to "network.proxy.no_proxies_on"

var uriStrUseProxyList;
var hostFilterList;
var uriStrFilterList;

function run_proxy_host_filters_test() {
  // Get prefs object from DOM
  // Setup a basic HTTP proxy configuration
  // - pps.resolve() needs this to return proxy info for non-filtered hosts
  prefs.setIntPref("network.proxy.type", 1);
  prefs.setCharPref("network.proxy.http", "foopy");
  prefs.setIntPref("network.proxy.http_port", 8080);

  // Setup host filter list string for "no_proxies_on"
  hostFilterList =
    "www.mozilla.org, www.google.com, www.apple.com, " +
    ".domain, .domain2.org";
  prefs.setCharPref("network.proxy.no_proxies_on", hostFilterList);
  Assert.equal(
    prefs.getCharPref("network.proxy.no_proxies_on"),
    hostFilterList
  );

  // Check the hosts that should be filtered out
  uriStrFilterList = [
    "http://www.mozilla.org/",
    "http://www.google.com/",
    "http://www.apple.com/",
    "http://somehost.domain/",
    "http://someotherhost.domain/",
    "http://somehost.domain2.org/",
    "http://somehost.subdomain.domain2.org/",
  ];
  check_host_filters(uriStrFilterList, true, host_filters_1);
}

function host_filters_1() {
  // Check the hosts that should be proxied
  uriStrUseProxyList = [
    "http://www.mozilla.com/",
    "http://mail.google.com/",
    "http://somehost.domain.co.uk/",
    "http://somelocalhost/",
  ];
  check_host_filters(uriStrUseProxyList, false, host_filters_2);
}

function host_filters_2() {
  // Set no_proxies_on to include local hosts
  prefs.setCharPref(
    "network.proxy.no_proxies_on",
    hostFilterList + ", <local>"
  );
  Assert.equal(
    prefs.getCharPref("network.proxy.no_proxies_on"),
    hostFilterList + ", <local>"
  );
  // Amend lists - move local domain to filtered list
  uriStrFilterList.push(uriStrUseProxyList.pop());
  check_host_filters(uriStrFilterList, true, host_filters_3);
}

function host_filters_3() {
  check_host_filters(uriStrUseProxyList, false, host_filters_4);
}

function host_filters_4() {
  // Cleanup
  prefs.setCharPref("network.proxy.no_proxies_on", "");
  Assert.equal(prefs.getCharPref("network.proxy.no_proxies_on"), "");

  run_myipaddress_test();
}

function run_myipaddress_test() {
  // This test makes sure myIpAddress() comes up with some valid
  // IP address other than localhost. The DUT must be configured with
  // an Internet route for this to work - though no Internet traffic
  // should be created.

  var pac =
    "data:text/plain," +
    "var pacUseMultihomedDNS = true;\n" +
    "function FindProxyForURL(url, host) {" +
    ' return "PROXY " + myIpAddress() + ":1234";' +
    "}";

  // no traffic to this IP is ever sent, it is just a public IP that
  // does not require DNS to determine a route.
  var channel = NetUtil.newChannel({
    uri: "http://192.0.43.10/",
    loadUsingSystemPrincipal: true,
  });
  prefs.setIntPref("network.proxy.type", 2);
  prefs.setCharPref("network.proxy.autoconfig_url", pac);

  var cb = new resolveCallback();
  cb.nextFunction = myipaddress_callback;
  pps.asyncResolve(channel, 0, cb);
}

function myipaddress_callback(pi) {
  Assert.notEqual(pi, null);
  Assert.equal(pi.type, "http");
  Assert.equal(pi.port, 1234);

  // make sure we didn't return localhost
  Assert.notEqual(pi.host, null);
  Assert.notEqual(pi.host, "127.0.0.1");
  Assert.notEqual(pi.host, "::1");

  run_myipaddress_test_2();
}

function run_myipaddress_test_2() {
  // test that myIPAddress() can be used outside of the scope of
  // FindProxyForURL(). bug 829646.

  var pac =
    "data:text/plain," +
    "var pacUseMultihomedDNS = true;\n" +
    "var myaddr = myIpAddress(); " +
    "function FindProxyForURL(url, host) {" +
    ' return "PROXY " + myaddr + ":5678";' +
    "}";

  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  prefs.setIntPref("network.proxy.type", 2);
  prefs.setCharPref("network.proxy.autoconfig_url", pac);

  var cb = new resolveCallback();
  cb.nextFunction = myipaddress2_callback;
  pps.asyncResolve(channel, 0, cb);
}

function myipaddress2_callback(pi) {
  Assert.notEqual(pi, null);
  Assert.equal(pi.type, "http");
  Assert.equal(pi.port, 5678);

  // make sure we didn't return localhost
  Assert.notEqual(pi.host, null);
  Assert.notEqual(pi.host, "127.0.0.1");
  Assert.notEqual(pi.host, "::1");

  run_failed_script_test();
}

function run_failed_script_test() {
  // test to make sure we go direct with invalid PAC
  // eslint-disable-next-line no-useless-concat
  var pac = "data:text/plain," + "\nfor(;\n";

  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  prefs.setIntPref("network.proxy.type", 2);
  prefs.setCharPref("network.proxy.autoconfig_url", pac);

  var cb = new resolveCallback();
  cb.nextFunction = failed_script_callback;
  pps.asyncResolve(channel, 0, cb);
}

var directFilter;
const TEST_URI = "http://127.0.0.1:7247/";

function failed_script_callback(pi) {
  // we should go direct
  Assert.equal(pi, null);

  // test that we honor filters when configured to go direct
  prefs.setIntPref("network.proxy.type", 0);
  directFilter = new TestFilter("http", "127.0.0.1", 7246, 0, 0);
  pps.registerFilter(directFilter, 10);

  // test that on-modify-request contains the proxy info too
  var obs = Cc["@mozilla.org/observer-service;1"].getService();
  obs = obs.QueryInterface(Ci.nsIObserverService);
  obs.addObserver(directFilterListener, "http-on-modify-request");

  var ssm = Services.scriptSecurityManager;
  let uri = TEST_URI;
  var chan = NetUtil.newChannel({
    uri,
    loadingPrincipal: ssm.createContentPrincipal(Services.io.newURI(uri), {}),
    securityFlags: Ci.nsILoadInfo.SEC_ALLOW_CROSS_ORIGIN_INHERITS_SEC_CONTEXT,
    contentPolicyType: Ci.nsIContentPolicy.TYPE_DOCUMENT,
  });

  chan.asyncOpen(directFilterListener);
}

var directFilterListener = {
  onModifyRequestCalled: false,

  onStartRequest: function test_onStart() {},
  onDataAvailable: function test_OnData() {},

  onStopRequest: function test_onStop(request) {
    // check on the PI from the channel itself
    request.QueryInterface(Ci.nsIProxiedChannel);
    check_proxy(request.proxyInfo, "http", "127.0.0.1", 7246, 0, 0, false);
    pps.unregisterFilter(directFilter);

    // check on the PI from on-modify-request
    Assert.ok(this.onModifyRequestCalled);
    var obs = Cc["@mozilla.org/observer-service;1"].getService();
    obs = obs.QueryInterface(Ci.nsIObserverService);
    obs.removeObserver(this, "http-on-modify-request");

    run_isresolvable_test();
  },

  observe(subject, topic) {
    if (
      topic === "http-on-modify-request" &&
      subject instanceof Ci.nsIHttpChannel &&
      subject instanceof Ci.nsIProxiedChannel
    ) {
      info("check proxy in observe uri=" + subject.URI.spec);
      if (subject.URI.spec != TEST_URI) {
        return;
      }
      check_proxy(subject.proxyInfo, "http", "127.0.0.1", 7246, 0, 0, false);
      this.onModifyRequestCalled = true;
    }
  },
};

function run_isresolvable_test() {
  // test a non resolvable host in the pac file

  var pac =
    "data:text/plain," +
    "function FindProxyForURL(url, host) {" +
    ' if (isResolvable("nonexistant.lan.onion"))' +
    '   return "DIRECT";' +
    ' return "PROXY 127.0.0.1:1234";' +
    "}";

  var channel = NetUtil.newChannel({
    uri: "http://www.mozilla.org/",
    loadUsingSystemPrincipal: true,
  });
  prefs.setIntPref("network.proxy.type", 2);
  prefs.setCharPref("network.proxy.autoconfig_url", pac);

  var cb = new resolveCallback();
  cb.nextFunction = isresolvable_callback;
  pps.asyncResolve(channel, 0, cb);
}

function isresolvable_callback(pi) {
  Assert.notEqual(pi, null);
  Assert.equal(pi.type, "http");
  Assert.equal(pi.port, 1234);
  Assert.equal(pi.host, "127.0.0.1");

  run_localhost_pac();
}

function run_localhost_pac() {
  // test localhost in the pac file

  var pac =
    "data:text/plain," +
    "function FindProxyForURL(url, host) {" +
    ' return "PROXY totallycrazy:1234";' +
    "}";

  // Use default filter list string for "no_proxies_on" ("localhost, 127.0.0.1")
  prefs.clearUserPref("network.proxy.no_proxies_on");
  var channel = NetUtil.newChannel({
    uri: "http://localhost/",
    loadUsingSystemPrincipal: true,
  });
  prefs.setIntPref("network.proxy.type", 2);
  prefs.setCharPref("network.proxy.autoconfig_url", pac);

  var cb = new resolveCallback();
  cb.nextFunction = localhost_callback;
  pps.asyncResolve(channel, 0, cb);
}

function localhost_callback(pi) {
  Assert.equal(pi, null); // no proxy!

  prefs.setIntPref("network.proxy.type", 0);

  if (mozinfo.socketprocess_networking && again) {
    info("run test again");
    again = false;
    cleanUp();
    prefs.setBoolPref("network.proxy.parse_pac_on_socket_process", true);
    run_filter_test();
  } else {
    cleanUp();
    do_test_finished();
  }
}

function cleanUp() {
  prefs.clearUserPref("network.proxy.type");
  prefs.clearUserPref("network.proxy.http");
  prefs.clearUserPref("network.proxy.http_port");
  prefs.clearUserPref("network.proxy.socks");
  prefs.clearUserPref("network.proxy.socks_port");
  prefs.clearUserPref("network.proxy.autoconfig_url");
  prefs.clearUserPref("network.proxy.proxy_over_tls");
  prefs.clearUserPref("network.proxy.no_proxies_on");
  prefs.clearUserPref("network.proxy.parse_pac_on_socket_process");
}

function run_test() {
  register_test_protocol_handler();

  prefs.setBoolPref("network.proxy.parse_pac_on_socket_process", false);
  // start of asynchronous test chain
  run_filter_test();
  do_test_pending();
}