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|
"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 firstAddress() {
let all = await this.addresses();
if (all.length) {
return all[0];
}
return undefined;
}
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 DOMAIN = "example.org";
const OTHER = "example.com";
add_task(async function test_bad_IPs() {
Assert.throws(
() => override.addIPOverride(DOMAIN, DOMAIN),
/NS_ERROR_UNEXPECTED/,
"Should throw if input is not an IP address"
);
Assert.throws(
() => override.addIPOverride(DOMAIN, ""),
/NS_ERROR_UNEXPECTED/,
"Should throw if input is not an IP address"
);
Assert.throws(
() => override.addIPOverride(DOMAIN, " "),
/NS_ERROR_UNEXPECTED/,
"Should throw if input is not an IP address"
);
Assert.throws(
() => override.addIPOverride(DOMAIN, "1-2-3-4"),
/NS_ERROR_UNEXPECTED/,
"Should throw if input is not an IP address"
);
});
add_task(async function test_ipv4() {
let listener = new Listener();
override.addIPOverride(DOMAIN, "1.2.3.4");
Services.dns.asyncResolve(
DOMAIN,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
0,
null,
listener,
mainThread,
defaultOriginAttributes
);
Assert.equal(await listener.firstAddress(), "1.2.3.4");
Services.dns.clearCache(false);
override.clearOverrides();
});
add_task(async function test_ipv6() {
let listener = new Listener();
override.addIPOverride(DOMAIN, "fe80::6a99:9b2b:6ccc:6e1b");
Services.dns.asyncResolve(
DOMAIN,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
0,
null,
listener,
mainThread,
defaultOriginAttributes
);
Assert.equal(await listener.firstAddress(), "fe80::6a99:9b2b:6ccc:6e1b");
Services.dns.clearCache(false);
override.clearOverrides();
});
add_task(async function test_clearOverrides() {
let listener = new Listener();
override.addIPOverride(DOMAIN, "1.2.3.4");
Services.dns.asyncResolve(
DOMAIN,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
0,
null,
listener,
mainThread,
defaultOriginAttributes
);
Assert.equal(await listener.firstAddress(), "1.2.3.4");
Services.dns.clearCache(false);
override.clearOverrides();
listener = new Listener();
Services.dns.asyncResolve(
DOMAIN,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
0,
null,
listener,
mainThread,
defaultOriginAttributes
);
Assert.notEqual(await listener.firstAddress(), "1.2.3.4");
await new Promise(resolve => do_timeout(1000, resolve));
Services.dns.clearCache(false);
override.clearOverrides();
});
add_task(async function test_clearHostOverride() {
override.addIPOverride(DOMAIN, "2.2.2.2");
override.addIPOverride(OTHER, "2.2.2.2");
override.clearHostOverride(DOMAIN);
let listener = new Listener();
Services.dns.asyncResolve(
DOMAIN,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
0,
null,
listener,
mainThread,
defaultOriginAttributes
);
Assert.notEqual(await listener.firstAddress(), "2.2.2.2");
listener = new Listener();
Services.dns.asyncResolve(
OTHER,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
0,
null,
listener,
mainThread,
defaultOriginAttributes
);
Assert.equal(await listener.firstAddress(), "2.2.2.2");
// Note: this test will use the actual system resolver. On windows we do a
// second async call to the system libraries to get the TTL values, which
// keeps the record alive after the onLookupComplete()
// We need to wait for a bit, until the second call is finished before we
// can clear the cache to make sure we evict everything.
// If the next task ever starts failing, with an IP that is not in this
// file, then likely the timeout is too small.
await new Promise(resolve => do_timeout(1000, resolve));
Services.dns.clearCache(false);
override.clearOverrides();
});
add_task(async function test_multiple_IPs() {
override.addIPOverride(DOMAIN, "2.2.2.2");
override.addIPOverride(DOMAIN, "1.1.1.1");
override.addIPOverride(DOMAIN, "::1");
override.addIPOverride(DOMAIN, "fe80::6a99:9b2b:6ccc:6e1b");
let listener = new Listener();
Services.dns.asyncResolve(
DOMAIN,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
0,
null,
listener,
mainThread,
defaultOriginAttributes
);
Assert.deepEqual(await listener.addresses(), [
"2.2.2.2",
"1.1.1.1",
"::1",
"fe80::6a99:9b2b:6ccc:6e1b",
]);
Services.dns.clearCache(false);
override.clearOverrides();
});
add_task(async function test_address_family_flags() {
override.addIPOverride(DOMAIN, "2.2.2.2");
override.addIPOverride(DOMAIN, "1.1.1.1");
override.addIPOverride(DOMAIN, "::1");
override.addIPOverride(DOMAIN, "fe80::6a99:9b2b:6ccc:6e1b");
let listener = new Listener();
Services.dns.asyncResolve(
DOMAIN,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
Ci.nsIDNSService.RESOLVE_DISABLE_IPV4,
null,
listener,
mainThread,
defaultOriginAttributes
);
Assert.deepEqual(await listener.addresses(), [
"::1",
"fe80::6a99:9b2b:6ccc:6e1b",
]);
listener = new Listener();
Services.dns.asyncResolve(
DOMAIN,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
Ci.nsIDNSService.RESOLVE_DISABLE_IPV6,
null,
listener,
mainThread,
defaultOriginAttributes
);
Assert.deepEqual(await listener.addresses(), ["2.2.2.2", "1.1.1.1"]);
Services.dns.clearCache(false);
override.clearOverrides();
});
add_task(async function test_cname_flag() {
override.addIPOverride(DOMAIN, "2.2.2.2");
let listener = new Listener();
Services.dns.asyncResolve(
DOMAIN,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
0,
null,
listener,
mainThread,
defaultOriginAttributes
);
let [, inRecord] = await listener;
inRecord.QueryInterface(Ci.nsIDNSAddrRecord);
Assert.throws(
() => inRecord.canonicalName,
/NS_ERROR_NOT_AVAILABLE/,
"No canonical name flag"
);
Assert.equal(inRecord.getNextAddrAsString(), "2.2.2.2");
listener = new Listener();
Services.dns.asyncResolve(
DOMAIN,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
Ci.nsIDNSService.RESOLVE_CANONICAL_NAME,
null,
listener,
mainThread,
defaultOriginAttributes
);
[, inRecord] = await listener;
inRecord.QueryInterface(Ci.nsIDNSAddrRecord);
Assert.equal(inRecord.canonicalName, DOMAIN, "No canonical name specified");
Assert.equal(inRecord.getNextAddrAsString(), "2.2.2.2");
Services.dns.clearCache(false);
override.clearOverrides();
override.addIPOverride(DOMAIN, "2.2.2.2");
override.setCnameOverride(DOMAIN, OTHER);
listener = new Listener();
Services.dns.asyncResolve(
DOMAIN,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
Ci.nsIDNSService.RESOLVE_CANONICAL_NAME,
null,
listener,
mainThread,
defaultOriginAttributes
);
[, inRecord] = await listener;
inRecord.QueryInterface(Ci.nsIDNSAddrRecord);
Assert.equal(inRecord.canonicalName, OTHER, "Must have correct CNAME");
Assert.equal(inRecord.getNextAddrAsString(), "2.2.2.2");
Services.dns.clearCache(false);
override.clearOverrides();
});
add_task(async function test_nxdomain() {
override.addIPOverride(DOMAIN, "N/A");
let listener = new Listener();
Services.dns.asyncResolve(
DOMAIN,
Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
Ci.nsIDNSService.RESOLVE_CANONICAL_NAME,
null,
listener,
mainThread,
defaultOriginAttributes
);
let [, , inStatus] = await listener;
equal(inStatus, Cr.NS_ERROR_UNKNOWN_HOST);
});
|
