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Bug 1792541 - Make the ODoH request fail when ODoHConfig is not available, r=necko-reviewers,valentin

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Differential Revision: https://phabricator.services.mozilla.com/D158385
This commit is contained in:
Kershaw Chang 2022-10-05 07:08:29 +00:00
parent 0291a0ab80
commit a161c08379
3 changed files with 36 additions and 2 deletions
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10
netwerk/dns/ODoH.cpp
View File

@ -26,9 +26,15 @@ ODoH::Run() {
}
if (!gODoHService->ODoHConfigs()) {
LOG(("ODoH::Run ODoHConfigs is not available\n"));
if (NS_SUCCEEDED(gODoHService->UpdateODoHConfig())) {
LOG((
"ODoH::Run ODoHConfigs is not available mTriedDownloadODoHConfigs=%d\n",
mTriedDownloadODoHConfigs));
// Make this lookup fail if we don't have a valid ODoHConfig and we already
// tried before.
if (NS_SUCCEEDED(gODoHService->UpdateODoHConfig()) &&
!mTriedDownloadODoHConfigs) {
gODoHService->AppendPendingODoHRequest(this);
mTriedDownloadODoHConfigs = true;
} else {
RecordReason(TRRSkippedReason::ODOH_UPDATE_KEY_FAILED);
FailData(NS_ERROR_FAILURE);

2
netwerk/dns/ODoH.h
View File

@ -50,6 +50,8 @@ class ODoH final : public TRR {
virtual void HandleTimeout() override;
virtual void HandleEncodeError(nsresult aStatusCode) override;
virtual void HandleDecodeError(nsresult aStatusCode) override;
bool mTriedDownloadODoHConfigs = false;
};
} // namespace net

26
netwerk/test/unit/test_odoh.js
View File

@ -267,3 +267,29 @@ add_task(test_ipv4_trr_fallback);
add_task(test_no_retry_without_doh);
add_task(test_connection_reuse_and_cycling).skip(); // Bug 1742743
add_task(async function testODoHConfigNotAvailableInMode3() {
dns.clearCache(true);
Services.prefs.setIntPref("network.trr.mode", 3);
Services.prefs.setCharPref("network.trr.uri", "");
await ODoHConfigTestHTTP("https://failed_odoh_config.com", false);
// In mode 3, the DNS lookup should fail.
let { inStatus } = await new TRRDNSListener("test.example.com", {
expectedSuccess: false,
});
Assert.equal(inStatus, Cr.NS_ERROR_UNKNOWN_HOST);
});
add_task(async function testODoHConfigNotAvailableInMode2() {
dns.clearCache(true);
Services.prefs.setIntPref("network.trr.mode", 2);
Services.prefs.setCharPref("network.trr.uri", "");
await ODoHConfigTestHTTP("https://failed_odoh_config_1.com", false);
// In mode 2, we fallback to native.
await new TRRDNSListener("test.example.com", "127.0.0.1");
});