mozilla-central/netwerk/test/unit/test_http3_fast_fallback.js (file symbol)

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/* 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 { setTimeout } = ChromeUtils.importESModule(
);
let h2Port;
let h3Port;
let trrServer;
const { TestUtils } = ChromeUtils.importESModule(
);
const certOverrideService = Cc[
"@mozilla.org/security/certoverride;1"
].getService(Ci.nsICertOverrideService);
add_setup(async function setup() {
h2Port = Services.env.get("MOZHTTP2_PORT");
Assert.notEqual(h2Port, null);
Assert.notEqual(h2Port, "");
h3Port = Services.env.get("MOZHTTP3_PORT_NO_RESPONSE");
Assert.notEqual(h3Port, null);
Assert.notEqual(h3Port, "");
trr_test_setup();
if (mozinfo.socketprocess_networking) {
Services.dns; // Needed to trigger socket process.
await TestUtils.waitForCondition(() => Services.io.socketProcessLaunched);
}
Services.prefs.setIntPref("network.trr.mode", 2); // TRR first
Services.prefs.setBoolPref("network.http.http3.enable", true);
Services.prefs.setIntPref("network.http.speculative-parallel-limit", 6);
registerCleanupFunction(async () => {
trr_clear_prefs();
Services.prefs.clearUserPref("network.dns.upgrade_with_https_rr");
Services.prefs.clearUserPref("network.dns.use_https_rr_as_altsvc");
Services.prefs.clearUserPref("network.dns.echconfig.enabled");
Services.prefs.clearUserPref("network.dns.http3_echconfig.enabled");
Services.prefs.clearUserPref(
"network.dns.echconfig.fallback_to_origin_when_all_failed"
);
Services.prefs.clearUserPref("network.dns.httpssvc.reset_exclustion_list");
Services.prefs.clearUserPref("network.http.http3.enable");
Services.prefs.clearUserPref(
"network.dns.httpssvc.http3_fast_fallback_timeout"
);
Services.prefs.clearUserPref(
"network.http.http3.alt-svc-mapping-for-testing"
);
Services.prefs.clearUserPref("network.http.http3.backup_timer_delay");
Services.prefs.clearUserPref("network.http.speculative-parallel-limit");
Services.prefs.clearUserPref(
"network.http.http3.parallel_fallback_conn_limit"
);
if (trrServer) {
await trrServer.stop();
}
});
});
function makeChan(url) {
let chan = NetUtil.newChannel({
uri: url,
loadUsingSystemPrincipal: true,
contentPolicyType: Ci.nsIContentPolicy.TYPE_DOCUMENT,
}).QueryInterface(Ci.nsIHttpChannel);
chan.loadFlags = Ci.nsIChannel.LOAD_INITIAL_DOCUMENT_URI;
return chan;
}
function channelOpenPromise(chan, flags, delay) {
// eslint-disable-next-line no-async-promise-executor
return new Promise(async resolve => {
function finish(req, buffer) {
resolve([req, buffer]);
certOverrideService.setDisableAllSecurityChecksAndLetAttackersInterceptMyData(
false
);
}
let internal = chan.QueryInterface(Ci.nsIHttpChannelInternal);
internal.setWaitForHTTPSSVCRecord();
certOverrideService.setDisableAllSecurityChecksAndLetAttackersInterceptMyData(
true
);
if (delay) {
// eslint-disable-next-line mozilla/no-arbitrary-setTimeout
await new Promise(r => setTimeout(r, delay));
}
chan.asyncOpen(new ChannelListener(finish, null, flags));
});
}
let CheckOnlyHttp2Listener = function () {};
CheckOnlyHttp2Listener.prototype = {
onStartRequest: function testOnStartRequest() {},
onDataAvailable: function testOnDataAvailable(request, stream, off, cnt) {
read_stream(stream, cnt);
},
onStopRequest: function testOnStopRequest(request, status) {
Assert.equal(status, Cr.NS_OK);
let httpVersion = "";
try {
httpVersion = request.protocolVersion;
} catch (e) {}
Assert.equal(httpVersion, "h2");
let routed = "NA";
try {
routed = request.getRequestHeader("Alt-Used");
} catch (e) {}
dump("routed is " + routed + "\n");
Assert.ok(routed === "0" || routed === "NA");
this.finish();
},
};
async function fast_fallback_test() {
let result = 1;
// We need to loop here because we need to wait for AltSvc storage to
// to be started.
// We also do not have a way to verify that HTTP3 has been tried, because
// the fallback is automatic, so try a couple of times.
do {
// We need to close HTTP2 connections, otherwise our connection pooling
// will dispatch the request over already existing HTTP2 connection.
Services.obs.notifyObservers(null, "net:prune-all-connections");
let chan = makeChan(`https://foo.example.com:${h2Port}/`);
let listener = new CheckOnlyHttp2Listener();
await altsvcSetupPromise(chan, listener);
result++;
} while (result < 3);
}
// Test the case when speculative connection is enabled. In this case, when the
// backup connection is ready, the http transaction is still in pending
// queue because the h3 connection is never ready to accept transactions.
add_task(async function test_fast_fallback_with_speculative_connection() {
Services.prefs.setBoolPref("network.http.http3.enable", true);
Services.prefs.setCharPref("network.dns.localDomains", "foo.example.com");
// Set AltSvc to point to not existing HTTP3 server on port 443
Services.prefs.setCharPref(
"network.http.http3.alt-svc-mapping-for-testing",
"foo.example.com;h3-29=:" + h3Port
);
Services.prefs.setBoolPref("network.dns.disableIPv6", true);
Services.prefs.setIntPref("network.http.speculative-parallel-limit", 6);
await fast_fallback_test();
});
// Test the case when speculative connection is disabled. In this case, when the
// back connection is ready, the http transaction is already activated,
// but the socket is not ready to write.
add_task(async function test_fast_fallback_without_speculative_connection() {
// Make sure the h3 connection created by the previous test is cleared.
Services.obs.notifyObservers(null, "net:cancel-all-connections");
// eslint-disable-next-line mozilla/no-arbitrary-setTimeout
await new Promise(resolve => setTimeout(resolve, 1000));
// Clear the h3 excluded list, otherwise the Alt-Svc mapping will not be used.
Services.obs.notifyObservers(null, "network:reset-http3-excluded-list");
Services.prefs.setIntPref("network.http.speculative-parallel-limit", 0);
await fast_fallback_test();
Services.prefs.clearUserPref(
"network.http.http3.alt-svc-mapping-for-testing"
);
});
// Test when echConfig is disabled and we have https rr for http3. We use a
// longer timeout in this test, so when fast fallback timer is triggered, the
// http transaction is already activated.
add_task(async function testFastfallback() {
trrServer = new TRRServer();
await trrServer.start();
Services.prefs.setBoolPref("network.dns.upgrade_with_https_rr", true);
Services.prefs.setBoolPref("network.dns.use_https_rr_as_altsvc", true);
Services.prefs.setBoolPref("network.dns.echconfig.enabled", false);
Services.prefs.setIntPref("network.trr.mode", 3);
Services.prefs.setCharPref(
"network.trr.uri",
`https://foo.example.com:${trrServer.port()}/dns-query`
);
Services.prefs.setBoolPref("network.http.http3.enable", true);
Services.prefs.setIntPref(
"network.dns.httpssvc.http3_fast_fallback_timeout",
1000
);
await trrServer.registerDoHAnswers("test.fastfallback.com", "HTTPS", {
answers: [
{
name: "test.fastfallback.com",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 1,
name: "test.fastfallback1.com",
values: [
{ key: "alpn", value: "h3-29" },
{ key: "port", value: h3Port },
{ key: "echconfig", value: "456..." },
],
},
},
{
name: "test.fastfallback.com",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 2,
name: "test.fastfallback2.com",
values: [
{ key: "alpn", value: "h2" },
{ key: "port", value: h2Port },
{ key: "echconfig", value: "456..." },
],
},
},
],
});
await trrServer.registerDoHAnswers("test.fastfallback1.com", "A", {
answers: [
{
name: "test.fastfallback1.com",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
await trrServer.registerDoHAnswers("test.fastfallback2.com", "A", {
answers: [
{
name: "test.fastfallback2.com",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
let [req] = await channelOpenPromise(chan);
Assert.equal(req.protocolVersion, "h2");
let internal = req.QueryInterface(Ci.nsIHttpChannelInternal);
Assert.equal(internal.remotePort, h2Port);
await trrServer.stop();
});
// Like the previous test, but with a shorter timeout, so when fast fallback
// timer is triggered, the http transaction is still in pending queue.
add_task(async function testFastfallback1() {
trrServer = new TRRServer();
await trrServer.start();
Services.prefs.setBoolPref("network.dns.upgrade_with_https_rr", true);
Services.prefs.setBoolPref("network.dns.use_https_rr_as_altsvc", true);
Services.prefs.setBoolPref("network.dns.echconfig.enabled", false);
Services.prefs.setIntPref("network.trr.mode", 3);
Services.prefs.setCharPref(
"network.trr.uri",
`https://foo.example.com:${trrServer.port()}/dns-query`
);
Services.prefs.setBoolPref("network.http.http3.enable", true);
Services.prefs.setIntPref(
"network.dns.httpssvc.http3_fast_fallback_timeout",
10
);
await trrServer.registerDoHAnswers("test.fastfallback.org", "HTTPS", {
answers: [
{
name: "test.fastfallback.org",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 1,
name: "test.fastfallback1.org",
values: [
{ key: "alpn", value: "h3-29" },
{ key: "port", value: h3Port },
{ key: "echconfig", value: "456..." },
],
},
},
{
name: "test.fastfallback.org",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 2,
name: "test.fastfallback2.org",
values: [
{ key: "alpn", value: "h2" },
{ key: "port", value: h2Port },
{ key: "echconfig", value: "456..." },
],
},
},
],
});
await trrServer.registerDoHAnswers("test.fastfallback1.org", "A", {
answers: [
{
name: "test.fastfallback1.org",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
await trrServer.registerDoHAnswers("test.fastfallback2.org", "A", {
answers: [
{
name: "test.fastfallback2.org",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
let [req] = await channelOpenPromise(chan);
Assert.equal(req.protocolVersion, "h2");
let internal = req.QueryInterface(Ci.nsIHttpChannelInternal);
Assert.equal(internal.remotePort, h2Port);
await trrServer.stop();
});
// Test when echConfig is enabled, we can sucessfully fallback to the last
// record.
add_task(async function testFastfallbackWithEchConfig() {
trrServer = new TRRServer();
await trrServer.start();
Services.prefs.setBoolPref("network.dns.upgrade_with_https_rr", true);
Services.prefs.setBoolPref("network.dns.use_https_rr_as_altsvc", true);
Services.prefs.setBoolPref("network.dns.echconfig.enabled", true);
Services.prefs.setBoolPref("network.dns.http3_echconfig.enabled", true);
Services.prefs.setIntPref("network.trr.mode", 3);
Services.prefs.setCharPref(
"network.trr.uri",
`https://foo.example.com:${trrServer.port()}/dns-query`
);
Services.prefs.setBoolPref("network.http.http3.enable", true);
Services.prefs.setIntPref(
"network.dns.httpssvc.http3_fast_fallback_timeout",
50
);
await trrServer.registerDoHAnswers("test.ech.org", "HTTPS", {
answers: [
{
name: "test.ech.org",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 1,
name: "test.ech1.org",
values: [
{ key: "alpn", value: "h3-29" },
{ key: "port", value: h3Port },
{ key: "echconfig", value: "456..." },
],
},
},
{
name: "test.ech.org",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 2,
name: "test.ech2.org",
values: [
{ key: "alpn", value: "h2" },
{ key: "port", value: h2Port },
{ key: "echconfig", value: "456..." },
],
},
},
{
name: "test.ech.org",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 3,
name: "test.ech3.org",
values: [
{ key: "alpn", value: "h2" },
{ key: "port", value: h2Port },
{ key: "echconfig", value: "456..." },
],
},
},
],
});
await trrServer.registerDoHAnswers("test.ech1.org", "A", {
answers: [
{
name: "test.ech1.org",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
await trrServer.registerDoHAnswers("test.ech3.org", "A", {
answers: [
{
name: "test.ech3.org",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
let chan = makeChan(`https://test.ech.org/server-timing`);
let [req] = await channelOpenPromise(chan);
Assert.equal(req.protocolVersion, "h2");
let internal = req.QueryInterface(Ci.nsIHttpChannelInternal);
Assert.equal(internal.remotePort, h2Port);
await trrServer.stop();
});
// Test when echConfig is enabled, the connection should fail when not all
// records have echConfig.
add_task(async function testFastfallbackWithpartialEchConfig() {
trrServer = new TRRServer();
await trrServer.start();
Services.prefs.setBoolPref("network.dns.upgrade_with_https_rr", true);
Services.prefs.setBoolPref("network.dns.use_https_rr_as_altsvc", true);
Services.prefs.setBoolPref("network.dns.echconfig.enabled", true);
Services.prefs.setBoolPref("network.dns.http3_echconfig.enabled", true);
Services.prefs.setIntPref("network.trr.mode", 3);
Services.prefs.setCharPref(
"network.trr.uri",
`https://foo.example.com:${trrServer.port()}/dns-query`
);
Services.prefs.setBoolPref("network.http.http3.enable", true);
Services.prefs.setIntPref(
"network.dns.httpssvc.http3_fast_fallback_timeout",
50
);
await trrServer.registerDoHAnswers("test.partial_ech.org", "HTTPS", {
answers: [
{
name: "test.partial_ech.org",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 1,
name: "test.partial_ech1.org",
values: [
{ key: "alpn", value: "h3-29" },
{ key: "port", value: h3Port },
{ key: "echconfig", value: "456..." },
],
},
},
{
name: "test.partial_ech.org",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 2,
name: "test.partial_ech2.org",
values: [
{ key: "alpn", value: "h2" },
{ key: "port", value: h2Port },
],
},
},
],
});
await trrServer.registerDoHAnswers("test.partial_ech1.org", "A", {
answers: [
{
name: "test.partial_ech1.org",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
await trrServer.registerDoHAnswers("test.partial_ech2.org", "A", {
answers: [
{
name: "test.partial_ech2.org",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
await channelOpenPromise(chan, CL_EXPECT_LATE_FAILURE | CL_ALLOW_UNKNOWN_CL);
await trrServer.stop();
});
add_task(async function testFastfallbackWithoutEchConfig() {
trrServer = new TRRServer();
await trrServer.start();
Services.prefs.setBoolPref("network.dns.upgrade_with_https_rr", true);
Services.prefs.setBoolPref("network.dns.use_https_rr_as_altsvc", true);
Services.prefs.setIntPref("network.trr.mode", 3);
Services.prefs.setCharPref(
"network.trr.uri",
`https://foo.example.com:${trrServer.port()}/dns-query`
);
Services.prefs.setBoolPref("network.http.http3.enable", true);
Services.prefs.setIntPref(
"network.dns.httpssvc.http3_fast_fallback_timeout",
50
);
await trrServer.registerDoHAnswers("test.no_ech_h2.org", "HTTPS", {
answers: [
{
name: "test.no_ech_h2.org",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 1,
name: "test.no_ech_h3.org",
values: [
{ key: "alpn", value: "h3-29" },
{ key: "port", value: h3Port },
],
},
},
],
});
await trrServer.registerDoHAnswers("test.no_ech_h3.org", "A", {
answers: [
{
name: "test.no_ech_h3.org",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
await trrServer.registerDoHAnswers("test.no_ech_h2.org", "A", {
answers: [
{
name: "test.no_ech_h2.org",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
let chan = makeChan(`https://test.no_ech_h2.org:${h2Port}/server-timing`);
let [req] = await channelOpenPromise(chan);
Assert.equal(req.protocolVersion, "h2");
let internal = req.QueryInterface(Ci.nsIHttpChannelInternal);
Assert.equal(internal.remotePort, h2Port);
await trrServer.stop();
});
add_task(async function testH3FallbackWithMultipleTransactions() {
trrServer = new TRRServer();
await trrServer.start();
Services.prefs.setBoolPref("network.dns.upgrade_with_https_rr", true);
Services.prefs.setBoolPref("network.dns.use_https_rr_as_altsvc", true);
Services.prefs.setBoolPref("network.dns.echconfig.enabled", false);
Services.prefs.setIntPref("network.trr.mode", 3);
Services.prefs.setCharPref(
"network.trr.uri",
`https://foo.example.com:${trrServer.port()}/dns-query`
);
Services.prefs.setBoolPref("network.http.http3.enable", true);
// Disable fast fallback.
Services.prefs.setIntPref(
"network.http.http3.parallel_fallback_conn_limit",
0
);
Services.prefs.setIntPref("network.http.speculative-parallel-limit", 0);
await trrServer.registerDoHAnswers("test.multiple_trans.org", "HTTPS", {
answers: [
{
name: "test.multiple_trans.org",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 1,
name: "test.multiple_trans.org",
values: [
{ key: "alpn", value: "h3-29" },
{ key: "port", value: h3Port },
],
},
},
],
});
await trrServer.registerDoHAnswers("test.multiple_trans.org", "A", {
answers: [
{
name: "test.multiple_trans.org",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
let promises = [];
for (let i = 0; i < 2; ++i) {
let chan = makeChan(
`https://test.multiple_trans.org:${h2Port}/server-timing`
);
promises.push(channelOpenPromise(chan));
}
let res = await Promise.all(promises);
res.forEach(function (e) {
let [req] = e;
Assert.equal(req.protocolVersion, "h2");
let internal = req.QueryInterface(Ci.nsIHttpChannelInternal);
Assert.equal(internal.remotePort, h2Port);
});
await trrServer.stop();
});
add_task(async function testTwoFastFallbackTimers() {
trrServer = new TRRServer();
await trrServer.start();
Services.prefs.setBoolPref("network.dns.upgrade_with_https_rr", true);
Services.prefs.setBoolPref("network.dns.use_https_rr_as_altsvc", true);
Services.prefs.setBoolPref("network.dns.echconfig.enabled", false);
Services.prefs.setIntPref("network.trr.mode", 3);
Services.prefs.setCharPref(
"network.trr.uri",
`https://foo.example.com:${trrServer.port()}/dns-query`
);
Services.prefs.setBoolPref("network.http.http3.enable", true);
Services.prefs.setIntPref("network.http.speculative-parallel-limit", 6);
Services.prefs.clearUserPref(
"network.http.http3.parallel_fallback_conn_limit"
);
Services.prefs.setCharPref(
"network.http.http3.alt-svc-mapping-for-testing",
"foo.fallback.org;h3-29=:" + h3Port
);
Services.prefs.setIntPref(
"network.dns.httpssvc.http3_fast_fallback_timeout",
10
);
Services.prefs.setIntPref("network.http.http3.backup_timer_delay", 100);
await trrServer.registerDoHAnswers("foo.fallback.org", "HTTPS", {
answers: [
{
name: "foo.fallback.org",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 1,
name: "foo.fallback.org",
values: [
{ key: "alpn", value: "h3-29" },
{ key: "port", value: h3Port },
],
},
},
],
});
await trrServer.registerDoHAnswers("foo.fallback.org", "A", {
answers: [
{
name: "foo.fallback.org",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
// Test the case that http3 backup timer is triggered after
// fast fallback timer or HTTPS RR.
Services.prefs.setIntPref(
"network.dns.httpssvc.http3_fast_fallback_timeout",
10
);
Services.prefs.setIntPref("network.http.http3.backup_timer_delay", 100);
async function createChannelAndStartTest() {
let chan = makeChan(`https://foo.fallback.org:${h2Port}/server-timing`);
let [req] = await channelOpenPromise(chan);
Assert.equal(req.protocolVersion, "h2");
let internal = req.QueryInterface(Ci.nsIHttpChannelInternal);
Assert.equal(internal.remotePort, h2Port);
}
await createChannelAndStartTest();
Services.obs.notifyObservers(null, "net:prune-all-connections");
Services.obs.notifyObservers(null, "network:reset-http3-excluded-list");
Services.dns.clearCache(true);
// Do the same test again, but with a different configuration.
Services.prefs.setIntPref(
"network.dns.httpssvc.http3_fast_fallback_timeout",
100
);
Services.prefs.setIntPref("network.http.http3.backup_timer_delay", 10);
await createChannelAndStartTest();
await trrServer.stop();
});
add_task(async function testH3FastFallbackWithMultipleTransactions() {
trrServer = new TRRServer();
await trrServer.start();
Services.prefs.setBoolPref("network.dns.upgrade_with_https_rr", true);
Services.prefs.setBoolPref("network.dns.use_https_rr_as_altsvc", true);
Services.prefs.setBoolPref("network.dns.echconfig.enabled", false);
Services.prefs.setIntPref("network.trr.mode", 3);
Services.prefs.setCharPref(
"network.trr.uri",
`https://foo.example.com:${trrServer.port()}/dns-query`
);
Services.prefs.setBoolPref("network.http.http3.enable", true);
Services.prefs.setIntPref("network.http.speculative-parallel-limit", 6);
Services.prefs.clearUserPref(
"network.http.http3.parallel_fallback_conn_limit"
);
Services.prefs.setIntPref("network.http.http3.backup_timer_delay", 500);
Services.prefs.setCharPref(
"network.http.http3.alt-svc-mapping-for-testing",
"test.multiple_fallback_trans.org;h3-29=:" + h3Port
);
await trrServer.registerDoHAnswers("test.multiple_fallback_trans.org", "A", {
answers: [
{
name: "test.multiple_fallback_trans.org",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
let promises = [];
for (let i = 0; i < 3; ++i) {
let chan = makeChan(
);
if (i == 0) {
promises.push(channelOpenPromise(chan));
} else {
promises.push(channelOpenPromise(chan, null, 500));
}
}
let res = await Promise.all(promises);
res.forEach(function (e) {
let [req] = e;
Assert.equal(req.protocolVersion, "h2");
let internal = req.QueryInterface(Ci.nsIHttpChannelInternal);
Assert.equal(internal.remotePort, h2Port);
});
await trrServer.stop();
});
add_task(async function testFastfallbackToTheSameRecord() {
trrServer = new TRRServer();
await trrServer.start();
Services.prefs.setBoolPref("network.dns.upgrade_with_https_rr", true);
Services.prefs.setBoolPref("network.dns.use_https_rr_as_altsvc", true);
Services.prefs.setBoolPref("network.dns.echconfig.enabled", true);
Services.prefs.setBoolPref("network.dns.http3_echconfig.enabled", true);
Services.prefs.setIntPref("network.trr.mode", 3);
Services.prefs.setCharPref(
"network.trr.uri",
`https://foo.example.com:${trrServer.port()}/dns-query`
);
Services.prefs.setBoolPref("network.http.http3.enable", true);
Services.prefs.setIntPref(
"network.dns.httpssvc.http3_fast_fallback_timeout",
1000
);
await trrServer.registerDoHAnswers("test.ech.org", "HTTPS", {
answers: [
{
name: "test.ech.org",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 1,
name: "test.ech1.org",
values: [
{ key: "alpn", value: ["h3-29", "h2"] },
{ key: "port", value: h2Port },
{ key: "echconfig", value: "456..." },
],
},
},
],
});
await trrServer.registerDoHAnswers("test.ech1.org", "A", {
answers: [
{
name: "test.ech1.org",
ttl: 55,
type: "A",
flush: false,
data: "127.0.0.1",
},
],
});
let chan = makeChan(`https://test.ech.org/server-timing`);
let [req] = await channelOpenPromise(chan);
Assert.equal(req.protocolVersion, "h2");
let internal = req.QueryInterface(Ci.nsIHttpChannelInternal);
Assert.equal(internal.remotePort, h2Port);
await trrServer.stop();
});