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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";
let trrServer;
function makeChan(url) {
let chan = NetUtil.newChannel({
uri: url,
loadUsingSystemPrincipal: true,
}).QueryInterface(Ci.nsIHttpChannel);
return chan;
}
function channelOpenPromise(chan) {
return new Promise(resolve => {
function finish(req, buffer) {
resolve([req, buffer]);
}
chan.asyncOpen(new ChannelListener(finish));
});
}
add_setup(async function setup() {
trr_test_setup();
registerCleanupFunction(async () => {
trr_clear_prefs();
});
trrServer = new TRRServer();
registerCleanupFunction(async () => {
await trrServer.stop();
});
await trrServer.start();
dump(`port = ${trrServer.port()}\n`);
let chan = makeChan(`https://localhost:${trrServer.port()}/test?bla=some`);
let [, resp] = await channelOpenPromise(chan);
equal(resp, "<h1> 404 Path not found: /test</h1>");
Services.dns.clearCache(true);
Services.prefs.setIntPref("network.trr.mode", 3);
Services.prefs.setCharPref(
"network.trr.uri",
`https://foo.example.com:${trrServer.port()}/dns-query`
);
});
add_task(async function test_follow_cnames_same_response() {
await trrServer.registerDoHAnswers("something.foo", "A", {
answers: [
{
name: "something.foo",
ttl: 55,
type: "CNAME",
flush: false,
data: "other.foo",
},
{
name: "other.foo",
ttl: 55,
type: "CNAME",
flush: false,
data: "bla.foo",
},
{
name: "bla.foo",
ttl: 55,
type: "CNAME",
flush: false,
data: "xyz.foo",
},
{
name: "xyz.foo",
ttl: 55,
type: "A",
flush: false,
data: "1.2.3.4",
},
],
});
let { inRecord } = await new TRRDNSListener("something.foo", {
expectedAnswer: "1.2.3.4",
flags: Ci.nsIDNSService.RESOLVE_CANONICAL_NAME,
});
equal(inRecord.QueryInterface(Ci.nsIDNSAddrRecord).canonicalName, "xyz.foo");
await trrServer.registerDoHAnswers("a.foo", "A", {
answers: [
{
name: "a.foo",
ttl: 55,
type: "CNAME",
flush: false,
data: "b.foo",
},
],
});
await trrServer.registerDoHAnswers("b.foo", "A", {
answers: [
{
name: "b.foo",
ttl: 55,
type: "A",
flush: false,
data: "2.3.4.5",
},
],
});
await new TRRDNSListener("a.foo", { expectedAnswer: "2.3.4.5" });
});
add_task(async function test_cname_nodata() {
// Test that we don't needlessly follow cname chains when the RA flag is set
// on the response.
await trrServer.registerDoHAnswers("first.foo", "A", {
flags: 0x80,
answers: [
{
name: "first.foo",
ttl: 55,
type: "CNAME",
flush: false,
data: "second.foo",
},
{
name: "second.foo",
ttl: 55,
type: "A",
flush: false,
data: "1.2.3.4",
},
],
});
await trrServer.registerDoHAnswers("first.foo", "AAAA", {
flags: 0x80,
answers: [
{
name: "first.foo",
ttl: 55,
type: "CNAME",
flush: false,
data: "second.foo",
},
],
});
await new TRRDNSListener("first.foo", { expectedAnswer: "1.2.3.4" });
equal(await trrServer.requestCount("first.foo", "A"), 1);
equal(await trrServer.requestCount("first.foo", "AAAA"), 1);
equal(await trrServer.requestCount("second.foo", "A"), 0);
equal(await trrServer.requestCount("second.foo", "AAAA"), 0);
await trrServer.registerDoHAnswers("first.bar", "A", {
answers: [
{
name: "first.bar",
ttl: 55,
type: "CNAME",
flush: false,
data: "second.bar",
},
{
name: "second.bar",
ttl: 55,
type: "A",
flush: false,
data: "1.2.3.4",
},
],
});
await trrServer.registerDoHAnswers("first.bar", "AAAA", {
answers: [
{
name: "first.bar",
ttl: 55,
type: "CNAME",
flush: false,
data: "second.bar",
},
],
});
await new TRRDNSListener("first.bar", { expectedAnswer: "1.2.3.4" });
equal(await trrServer.requestCount("first.bar", "A"), 1);
equal(await trrServer.requestCount("first.bar", "AAAA"), 1);
equal(await trrServer.requestCount("second.bar", "A"), 0); // addr included in first response
equal(await trrServer.requestCount("second.bar", "AAAA"), 1); // will follow cname because no flag is set
// Check that it also works for HTTPS records
await trrServer.registerDoHAnswers("first.bar", "HTTPS", {
flags: 0x80,
answers: [
{
name: "second.bar",
ttl: 55,
type: "HTTPS",
flush: false,
data: {
priority: 1,
name: "h3pool",
values: [
{ key: "alpn", value: ["h2", "h3"] },
{ key: "no-default-alpn" },
{ key: "port", value: 8888 },
{ key: "ipv4hint", value: "1.2.3.4" },
{ key: "echconfig", value: "123..." },
{ key: "ipv6hint", value: "::1" },
],
},
},
{
name: "first.bar",
ttl: 55,
type: "CNAME",
flush: false,
data: "second.bar",
},
],
});
let { inStatus } = await new TRRDNSListener("first.bar", {
type: Ci.nsIDNSService.RESOLVE_TYPE_HTTPSSVC,
});
Assert.ok(Components.isSuccessCode(inStatus), `${inStatus} should work`);
equal(await trrServer.requestCount("first.bar", "HTTPS"), 1);
equal(await trrServer.requestCount("second.bar", "HTTPS"), 0);
});
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