1 files changed, 76 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_dns_onion.js b/netwerk/test/unit/test_dns_onion.js
new file mode 100644
index 0000000000..928753f71f
--- /dev/null
+++ b/netwerk/test/unit/test_dns_onion.js
@@ -0,0 +1,76 @@
+"use strict";
+
+var mainThread = Services.tm.currentThread;
+
+var onionPref;
+var localdomainPref;
+var prefs = Services.prefs;
+
+// check that we don't lookup .onion
+var listenerBlock = {
+  onLookupComplete(inRequest, inRecord, inStatus) {
+    Assert.ok(!Components.isSuccessCode(inStatus));
+    do_test_dontBlock();
+  },
+  QueryInterface: ChromeUtils.generateQI(["nsIDNSListener"]),
+};
+
+// check that we do lookup .onion (via pref)
+var listenerDontBlock = {
+  onLookupComplete(inRequest, inRecord, inStatus) {
+    inRecord.QueryInterface(Ci.nsIDNSAddrRecord);
+    var answer = inRecord.getNextAddrAsString();
+    Assert.ok(answer == "127.0.0.1" || answer == "::1");
+    all_done();
+  },
+  QueryInterface: ChromeUtils.generateQI(["nsIDNSListener"]),
+};
+
+const defaultOriginAttributes = {};
+
+function do_test_dontBlock() {
+  prefs.setBoolPref("network.dns.blockDotOnion", false);
+  Services.dns.asyncResolve(
+    "private.onion",
+    Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
+    0,
+    null, // resolverInfo
+    listenerDontBlock,
+    mainThread,
+    defaultOriginAttributes
+  );
+}
+
+function do_test_block() {
+  prefs.setBoolPref("network.dns.blockDotOnion", true);
+  try {
+    Services.dns.asyncResolve(
+      "private.onion",
+      Ci.nsIDNSService.RESOLVE_TYPE_DEFAULT,
+      0,
+      null, // resolverInfo
+      listenerBlock,
+      mainThread,
+      defaultOriginAttributes
+    );
+  } catch (e) {
+    // it is ok for this negative test to fail fast
+    Assert.ok(true);
+    do_test_dontBlock();
+  }
+}
+
+function all_done() {
+  // reset locally modified prefs
+  prefs.setCharPref("network.dns.localDomains", localdomainPref);
+  prefs.setBoolPref("network.dns.blockDotOnion", onionPref);
+  do_test_finished();
+}
+
+function run_test() {
+  onionPref = prefs.getBoolPref("network.dns.blockDotOnion");
+  localdomainPref = prefs.getCharPref("network.dns.localDomains");
+  prefs.setCharPref("network.dns.localDomains", "private.onion");
+  do_test_block();
+  do_test_pending();
+}