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Test Info:
- Manifest: netwerk/test/unit/xpcshell.toml
"use strict";
const override = Cc["@mozilla.org/network/native-dns-override;1"].getService(
Ci.nsINativeDNSResolverOverride
);
const defaultOriginAttributes = {};
const mainThread = Services.tm.currentThread;
class Listener {
constructor() {
this.promise = new Promise(resolve => {
this.resolve = resolve;
});
}
onLookupComplete(inRequest, inRecord, inStatus) {
this.resolve([inRequest, inRecord, inStatus]);
}
async addresses() {
let [, inRecord] = await this.promise;
let addresses = [];
if (!inRecord) {
return addresses; // returns []
}
inRecord.QueryInterface(Ci.nsIDNSAddrRecord);
while (inRecord.hasMore()) {
addresses.push(inRecord.getNextAddrAsString());
}
return addresses;
}
then() {
return this.promise.then.apply(this.promise, arguments);
}
}
Listener.prototype.QueryInterface = ChromeUtils.generateQI(["nsIDNSListener"]);
const DOMAINS = [
"localhost",
"localhost.",
"vhost.localhost",
"vhost.localhost.",
];
DOMAINS.forEach(domain => {
add_task(async function test_() {
let listener1 = new Listener();
const overrides = ["1.2.3.4", "5.6.7.8"];
overrides.forEach(ip_address => {
override.addIPOverride(domain, ip_address);
});
// Verify that loopback host names are not overridden.
Services.dns.asyncResolve(
domain,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
0,
null,
listener1,
mainThread,
defaultOriginAttributes
);
Assert.deepEqual(
await listener1.addresses(),
["127.0.0.1", "::1"],
`${domain} is not overridden`
);
// Verify that if localhost hijacking is enabled, the overrides
// registered above are taken into account.
Services.prefs.setBoolPref("network.proxy.allow_hijacking_localhost", true);
let listener2 = new Listener();
Services.dns.asyncResolve(
domain,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
0,
null,
listener2,
mainThread,
defaultOriginAttributes
);
Assert.deepEqual(
await listener2.addresses(),
overrides,
`${domain} is overridden`
);
Services.prefs.clearUserPref("network.proxy.allow_hijacking_localhost");
Services.dns.clearCache(false);
override.clearOverrides();
});
});