/* 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"; // This test simmulates intermittent native DNS functionality. // We verify that we don't use the negative DNS record for the DoH server. // The first resolve of foo.example.com fails, so we expect TRR not to work. // Immediately after the native DNS starts working, it should connect to the // TRR server and start working. const override = Cc["@mozilla.org/network/native-dns-override;1"].getService( Ci.nsINativeDNSResolverOverride ); function setup() { trr_test_setup(); Services.prefs.clearUserPref("network.trr.bootstrapAddr"); Services.prefs.clearUserPref("network.dns.native-is-localhost"); } setup(); registerCleanupFunction(async () => { trr_clear_prefs(); override.clearOverrides(); }); add_task(async function intermittent_dns_mode3() { override.addIPOverride("foo.example.com", "N/A"); let trrServer = new TRRServer(); registerCleanupFunction(async () => { await trrServer.stop(); }); await trrServer.start(); info(`port = ${trrServer.port}\n`); Services.dns.clearCache(true); Services.prefs.setCharPref( "network.trr.uri", `https://foo.example.com:${trrServer.port}/dns-query` ); Services.prefs.setIntPref("network.trr.mode", Ci.nsIDNSService.MODE_TRRONLY); await trrServer.registerDoHAnswers("example.com", "A", { answers: [ { name: "example.com", ttl: 55, type: "A", flush: false, data: "1.2.3.4", }, ], }); let { inStatus } = await new TRRDNSListener("example.com", { expectedSuccess: false, }); equal(inStatus, Cr.NS_ERROR_UNKNOWN_HOST); await trrServer.registerDoHAnswers("example.org", "A", { answers: [ { name: "example.org", ttl: 55, type: "A", flush: false, data: "1.2.3.4", }, ], }); override.addIPOverride("foo.example.com", "127.0.0.1"); await new TRRDNSListener("example.org", { expectedAnswer: "1.2.3.4" }); await trrServer.stop(); }); add_task(async function intermittent_dns_mode2() { override.addIPOverride("foo.example.com", "N/A"); let trrServer = new TRRServer(); registerCleanupFunction(async () => { await trrServer.stop(); }); await trrServer.start(); info(`port = ${trrServer.port}\n`); Services.dns.clearCache(true); Services.prefs.setIntPref( "network.trr.mode", Ci.nsIDNSService.MODE_NATIVEONLY ); Services.prefs.setCharPref( "network.trr.uri", `https://foo.example.com:${trrServer.port}/dns-query` ); Services.prefs.setIntPref("network.trr.mode", Ci.nsIDNSService.MODE_TRRFIRST); await trrServer.registerDoHAnswers("example.com", "A", { answers: [ { name: "example.com", ttl: 55, type: "A", flush: false, data: "1.1.1.1", }, ], }); override.addIPOverride("example.com", "2.2.2.2"); await new TRRDNSListener("example.com", { expectedAnswer: "2.2.2.2", }); await trrServer.registerDoHAnswers("example.org", "A", { answers: [ { name: "example.org", ttl: 55, type: "A", flush: false, data: "1.2.3.4", }, ], }); override.addIPOverride("example.org", "3.3.3.3"); override.addIPOverride("foo.example.com", "127.0.0.1"); await new TRRDNSListener("example.org", { expectedAnswer: "1.2.3.4" }); await trrServer.stop(); });