gecko-dev/netwerk/test/mochitests/test_user_agent_overrides.html

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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=782453
-->
<head>
<title>Test for User Agent Overrides</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=782453">Mozilla Bug 782453</a>
<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test">
<script class="testbody" type="text/javascript">
const PREF_OVERRIDES_ENABLED = "general.useragent.site_specific_overrides";
const PREF_OVERRIDES_BRANCH = "general.useragent.override.";
const DEFAULT_UA = navigator.userAgent;
const UA_WHOLE_OVERRIDE = "DummyUserAgent";
const UA_WHOLE_EXPECTED = UA_WHOLE_OVERRIDE;
const UA_PARTIAL_FROM = "\\wozilla"; // /\wozilla
const UA_PARTIAL_SEP = "#";
const UA_PARTIAL_TO = UA_WHOLE_OVERRIDE;
const UA_PARTIAL_OVERRIDE = UA_PARTIAL_FROM + UA_PARTIAL_SEP + UA_PARTIAL_TO;
const UA_PARTIAL_EXPECTED = DEFAULT_UA.replace(new RegExp(UA_PARTIAL_FROM, 'g'), UA_PARTIAL_TO);
function getUA(host) {
var url = location.pathname;
url = host + url.slice(0, url.lastIndexOf('/')) + '/user_agent.sjs';
var xhr = new XMLHttpRequest();
xhr.open('GET', url, false); // sync request
xhr.send();
is(xhr.status, 200, 'request failed');
is(typeof xhr.response, 'string', 'invalid response');
return xhr.response;
}
function testUA(options, callback) {
var [domain, override, test_hosts, expected] =
[options.domain, options.override, options.test_hosts, options.expected];
info('Overriding ' + domain + ' with ' + override);
function is_subdomain(host) {
var [test_domain] = host.slice(host.lastIndexOf('/') + 1).split(':', 1);
return test_domain === domain || test_domain.endsWith('.' + domain);
}
var localhost = location.origin;
var overrideNavigator = is_subdomain(localhost);
var navigator_ua, test_ua = [];
// store UA before pref change, to be compared later
if (overrideNavigator) {
navigator_ua = navigator.userAgent;
}
test_hosts.forEach(function (test_host) {
test_ua.push(getUA(test_host));
});
// set the override pref to override the UA
SpecialPowers.pushPrefEnv({
set: [[PREF_OVERRIDES_BRANCH + domain, override]],
}, function () {
var ifr = document.createElement('IFRAME');
ifr.src = "about:blank";
ifr.addEventListener('load', function() {
var nav = ifr.contentWindow.navigator;
// check that the UA has changed after pref change
if (overrideNavigator) {
is(nav.userAgent, expected,
'Navigator UA not overridden at step ' + (++step));
} else {
is(nav.userAgent, DEFAULT_UA,
'Navigator UA should not be overridden at step ' + (++step));
}
test_hosts.forEach(function (test_host) {
is(getUA(test_host), expected,
'Header UA not overridden at step ' + (++step));
});
// clear the override pref to undo overriding the UA
SpecialPowers.pushPrefEnv({
clear: [[PREF_OVERRIDES_BRANCH + domain]],
}, function () {
var ifr = document.createElement('IFRAME');
ifr.src = "about:blank";
ifr.addEventListener('load', function() {
var nav = ifr.contentWindow.navigator;
// check that the UA has changed back
if (overrideNavigator) {
is(nav.userAgent, navigator_ua,
'Navigator UA not restored at step ' + (++step));
}
test_hosts.forEach(function (test_host, i) {
is(getUA(test_host), test_ua[i],
'Header UA not restored at step ' + (++step));
});
callback();
});
document.getElementById('content').appendChild(ifr);
});
}, false);
document.getElementById('content').appendChild(ifr);
});
}
var step = 0; // for logging
var tests = [
// should override both header and navigator.userAgent
{
domain: location.hostname,
override: UA_WHOLE_OVERRIDE,
test_hosts: [location.origin],
expected: UA_WHOLE_EXPECTED
},
// should support partial overrides
{
domain: location.hostname,
override: UA_PARTIAL_OVERRIDE,
test_hosts: [location.origin],
expected: UA_PARTIAL_EXPECTED
},
// should match domain and subdomains
{
domain: 'example.org',
override: UA_WHOLE_OVERRIDE,
test_hosts: ['http://example.org',
'http://test1.example.org',
'http://sub1.test1.example.org'],
expected: UA_WHOLE_EXPECTED
},
// should not match superdomains
{
domain: 'sub1.test1.example.org',
override: UA_WHOLE_OVERRIDE,
test_hosts: ['http://example.org',
'http://test1.example.org'],
expected: DEFAULT_UA
},
// should work with https
{
domain: 'example.com',
override: UA_WHOLE_OVERRIDE,
test_hosts: ['https://example.com',
'https://test1.example.com',
'https://sub1.test1.example.com'],
expected: UA_WHOLE_EXPECTED
},
];
// test that UA is not overridden when the 'site_specific_overrides' pref is off
function testInactive(callback) {
SpecialPowers.pushPrefEnv({
set: [
[PREF_OVERRIDES_ENABLED, false],
[PREF_OVERRIDES_BRANCH + location.hostname, UA_WHOLE_OVERRIDE]
]
}, function () {
isnot(navigator.userAgent, UA_WHOLE_OVERRIDE,
'Failed to disable navigator UA override');
isnot(getUA(location.origin), UA_WHOLE_OVERRIDE,
'Failed to disable header UA override');
SpecialPowers.pushPrefEnv({
clear: [
[PREF_OVERRIDES_ENABLED],
[PREF_OVERRIDES_BRANCH + location.hostname]
]
}, callback);
});
}
function testPriority(callback) {
// foo.bar.com override should have priority over bar.com override
var tests = [
['example.org', 'test1.example.org', 'sub1.test1.example.org'],
['example.org', 'test1.example.org', 'sub2.test1.example.org'],
['example.org', 'test2.example.org', 'sub1.test2.example.org'],
['example.org', 'test2.example.org', 'sub2.test2.example.org'],
];
(function nextTest() {
var [level0, level1, level2] = tests.shift();
var host = 'http://' + level2;
SpecialPowers.pushPrefEnv({
set: [
[PREF_OVERRIDES_ENABLED, true],
[PREF_OVERRIDES_BRANCH + level1, UA_WHOLE_OVERRIDE]
]
}, function () {
// should use first override at this point
is(getUA(host),
UA_WHOLE_EXPECTED, 'UA not overridden');
// add a second override that should be used
testUA({
domain: level2,
override: UA_PARTIAL_OVERRIDE,
test_hosts: [host],
expected: UA_PARTIAL_EXPECTED
}, function () {
// add a third override that should not be used
testUA({
domain: level0,
override: UA_PARTIAL_OVERRIDE,
test_hosts: [host],
expected: UA_WHOLE_EXPECTED
}, tests.length ? nextTest : callback);
});
});
})();
}
function testOverrides(callback) {
SpecialPowers.pushPrefEnv({
set: [[PREF_OVERRIDES_ENABLED, true]]
}, function nextTest() {
testUA(tests.shift(), function() { tests.length ? nextTest() : callback() });
});
}
SpecialPowers.Cu.import('resource://gre/modules/UserAgentOverrides.jsm', window);
SpecialPowers.wrap(UserAgentOverrides).init();
SimpleTest.waitForExplicitFinish();
SimpleTest.requestCompleteLog();
info(SpecialPowers.Cc["@mozilla.org/dom/site-specific-user-agent;1"].number);
testOverrides(function() {
testInactive(function() {
testPriority(SimpleTest.finish)
});
});
</script>
</pre>
</body>
</html>