зеркало из https://github.com/mozilla/gecko-dev.git
699 строки
21 KiB
C++
699 строки
21 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsICaptivePortalService.h"
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#include "nsIObserverService.h"
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#include "nsIURIMutator.h"
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#include "nsNetUtil.h"
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#include "nsStandardURL.h"
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#include "TRR.h"
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#include "TRRService.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/Tokenizer.h"
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static const char kOpenCaptivePortalLoginEvent[] = "captive-portal-login";
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static const char kClearPrivateData[] = "clear-private-data";
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static const char kPurge[] = "browser:purge-session-history";
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static const char kDisableIpv6Pref[] = "network.dns.disableIPv6";
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#define TRR_PREF_PREFIX "network.trr."
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#define TRR_PREF(x) TRR_PREF_PREFIX x
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namespace mozilla {
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namespace net {
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#undef LOG
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extern mozilla::LazyLogModule gHostResolverLog;
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#define LOG(args) MOZ_LOG(gHostResolverLog, mozilla::LogLevel::Debug, args)
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TRRService *gTRRService = nullptr;
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NS_IMPL_ISUPPORTS(TRRService, nsIObserver, nsISupportsWeakReference)
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TRRService::TRRService()
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: mInitialized(false)
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, mMode(0)
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, mTRRBlacklistExpireTime(72 * 3600)
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, mTRRTimeout(3000)
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, mLock("trrservice")
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, mConfirmationNS(NS_LITERAL_CSTRING("example.com"))
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, mWaitForCaptive(true)
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, mRfc1918(false)
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, mCaptiveIsPassed(false)
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, mUseGET(false)
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, mDisableECS(true)
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, mDisableAfterFails(5)
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, mClearTRRBLStorage(false)
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, mConfirmationState(CONFIRM_INIT)
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, mRetryConfirmInterval(1000)
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, mTRRFailures(0)
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{
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MOZ_ASSERT(NS_IsMainThread(), "wrong thread");
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}
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nsresult
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TRRService::Init()
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{
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MOZ_ASSERT(NS_IsMainThread(), "wrong thread");
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if (mInitialized) {
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return NS_OK;
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}
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mInitialized = true;
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nsCOMPtr<nsIObserverService> observerService =
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mozilla::services::GetObserverService();
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if (observerService) {
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observerService->AddObserver(this, NS_CAPTIVE_PORTAL_CONNECTIVITY, true);
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observerService->AddObserver(this, kOpenCaptivePortalLoginEvent, true);
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observerService->AddObserver(this, kClearPrivateData, true);
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observerService->AddObserver(this, kPurge, true);
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}
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nsCOMPtr<nsIPrefBranch> prefBranch;
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GetPrefBranch(getter_AddRefs(prefBranch));
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if (prefBranch) {
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prefBranch->AddObserver(TRR_PREF_PREFIX, this, true);
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prefBranch->AddObserver(kDisableIpv6Pref, this, true);
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}
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nsCOMPtr<nsICaptivePortalService> captivePortalService =
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do_GetService(NS_CAPTIVEPORTAL_CID);
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if (captivePortalService) {
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int32_t captiveState;
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MOZ_ALWAYS_SUCCEEDS(captivePortalService->GetState(&captiveState));
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if ((captiveState == nsICaptivePortalService::UNLOCKED_PORTAL) ||
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(captiveState == nsICaptivePortalService::NOT_CAPTIVE)) {
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mCaptiveIsPassed = true;
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}
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LOG(("TRRService::Init mCaptiveState=%d mCaptiveIsPassed=%d\n",
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captiveState, (int)mCaptiveIsPassed));
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}
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ReadPrefs(nullptr);
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gTRRService = this;
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LOG(("Initialized TRRService\n"));
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return NS_OK;
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}
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bool
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TRRService::Enabled()
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{
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if (mConfirmationState == CONFIRM_INIT &&
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(!mWaitForCaptive || mCaptiveIsPassed || (mMode == MODE_TRRONLY))) {
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LOG(("TRRService::Enabled => CONFIRM_TRYING\n"));
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mConfirmationState = CONFIRM_TRYING;
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}
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if (mConfirmationState == CONFIRM_TRYING) {
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LOG(("TRRService::Enabled MaybeConfirm()\n"));
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MaybeConfirm();
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}
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if (mConfirmationState != CONFIRM_OK) {
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LOG(("TRRService::Enabled mConfirmationState=%d mCaptiveIsPassed=%d\n",
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(int)mConfirmationState,
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(int)mCaptiveIsPassed));
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}
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return (mConfirmationState == CONFIRM_OK);
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}
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void
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TRRService::GetPrefBranch(nsIPrefBranch **result)
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{
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MOZ_ASSERT(NS_IsMainThread(), "wrong thread");
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*result = nullptr;
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CallGetService(NS_PREFSERVICE_CONTRACTID, result);
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}
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nsresult
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TRRService::ReadPrefs(const char *name)
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{
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MOZ_ASSERT(NS_IsMainThread(), "wrong thread");
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if (!name || !strcmp(name, TRR_PREF("mode"))) {
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// 0 - off, 1 - parallel, 2 - TRR first, 3 - TRR only, 4 - shadow,
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// 5 - explicit off
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uint32_t tmp;
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if (NS_SUCCEEDED(Preferences::GetUint(TRR_PREF("mode"), &tmp))) {
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if (tmp > MODE_TRROFF) {
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tmp = MODE_TRROFF;
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}
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mMode = tmp;
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}
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}
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if (!name || !strcmp(name, TRR_PREF("uri"))) {
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// URI Template, RFC 6570.
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MutexAutoLock lock(mLock);
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nsAutoCString old(mPrivateURI);
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Preferences::GetCString(TRR_PREF("uri"), mPrivateURI);
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nsAutoCString scheme;
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if (!mPrivateURI.IsEmpty()) {
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nsCOMPtr<nsIIOService> ios(do_GetIOService());
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if (ios) {
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ios->ExtractScheme(mPrivateURI, scheme);
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}
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}
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if (!mPrivateURI.IsEmpty() && !scheme.Equals("https")) {
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LOG(("TRRService TRR URI %s is not https. Not used.\n",
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mPrivateURI.get()));
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mPrivateURI.Truncate();
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}
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if (!mPrivateURI.IsEmpty()) {
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// cut off everything from "{" to "}" sequences (potentially multiple),
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// as a crude conversion from template into URI.
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nsAutoCString uri(mPrivateURI);
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do {
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nsCCharSeparatedTokenizer openBrace(uri, '{');
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if (openBrace.hasMoreTokens()) {
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// the 'nextToken' is the left side of the open brace (or full uri)
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nsAutoCString prefix(openBrace.nextToken());
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// if there is an open brace, there's another token
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const nsACString& endBrace = openBrace.nextToken();
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nsCCharSeparatedTokenizer closeBrace(endBrace, '}');
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if (closeBrace.hasMoreTokens()) {
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// there is a close brace as well, make a URI out of the prefix
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// and the suffix
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closeBrace.nextToken();
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nsAutoCString suffix(closeBrace.nextToken());
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uri = prefix + suffix;
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} else {
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// no (more) close brace
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break;
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}
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} else {
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// no (more) open brace
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break;
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}
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} while (true);
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mPrivateURI = uri;
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}
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if (!old.IsEmpty() && !mPrivateURI.Equals(old)) {
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mClearTRRBLStorage = true;
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LOG(("TRRService clearing blacklist because of change is uri service\n"));
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}
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}
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if (!name || !strcmp(name, TRR_PREF("credentials"))) {
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MutexAutoLock lock(mLock);
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Preferences::GetCString(TRR_PREF("credentials"), mPrivateCred);
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}
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if (!name || !strcmp(name, TRR_PREF("confirmationNS"))) {
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MutexAutoLock lock(mLock);
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nsAutoCString old(mConfirmationNS);
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Preferences::GetCString(TRR_PREF("confirmationNS"), mConfirmationNS);
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if (name && !old.IsEmpty() && !mConfirmationNS.Equals(old) &&
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(mConfirmationState > CONFIRM_TRYING)) {
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LOG(("TRR::ReadPrefs: restart confirmationNS state\n"));
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mConfirmationState = CONFIRM_TRYING;
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}
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}
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if (!name || !strcmp(name, TRR_PREF("bootstrapAddress"))) {
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MutexAutoLock lock(mLock);
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Preferences::GetCString(TRR_PREF("bootstrapAddress"), mBootstrapAddr);
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}
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if (!name || !strcmp(name, TRR_PREF("wait-for-portal"))) {
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// Wait for captive portal?
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bool tmp;
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if (NS_SUCCEEDED(Preferences::GetBool(TRR_PREF("wait-for-portal"), &tmp))) {
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mWaitForCaptive = tmp;
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}
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}
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if (!name || !strcmp(name, TRR_PREF("allow-rfc1918"))) {
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bool tmp;
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if (NS_SUCCEEDED(Preferences::GetBool(TRR_PREF("allow-rfc1918"), &tmp))) {
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mRfc1918 = tmp;
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}
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}
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if (!name || !strcmp(name, TRR_PREF("useGET"))) {
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bool tmp;
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if (NS_SUCCEEDED(Preferences::GetBool(TRR_PREF("useGET"), &tmp))) {
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mUseGET = tmp;
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}
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}
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if (!name || !strcmp(name, TRR_PREF("blacklist-duration"))) {
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// prefs is given in number of seconds
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uint32_t secs;
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if (NS_SUCCEEDED(Preferences::GetUint(TRR_PREF("blacklist-duration"), &secs))) {
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mTRRBlacklistExpireTime = secs;
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}
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}
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if (!name || !strcmp(name, TRR_PREF("request-timeout"))) {
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// number of milliseconds
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uint32_t ms;
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if (NS_SUCCEEDED(Preferences::GetUint(TRR_PREF("request-timeout"), &ms))) {
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mTRRTimeout = ms;
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}
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}
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if (!name || !strcmp(name, TRR_PREF("early-AAAA"))) {
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bool tmp;
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if (NS_SUCCEEDED(Preferences::GetBool(TRR_PREF("early-AAAA"), &tmp))) {
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mEarlyAAAA = tmp;
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}
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}
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if (!name || !strcmp(name, kDisableIpv6Pref)) {
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bool tmp;
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if (NS_SUCCEEDED(Preferences::GetBool(kDisableIpv6Pref, &tmp))) {
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mDisableIPv6 = tmp;
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}
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}
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if (!name || !strcmp(name, TRR_PREF("disable-ECS"))) {
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bool tmp;
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if (NS_SUCCEEDED(Preferences::GetBool(TRR_PREF("disable-ECS"), &tmp))) {
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mDisableECS = tmp;
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}
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}
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if (!name || !strcmp(name, TRR_PREF("max-fails"))) {
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uint32_t fails;
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if (NS_SUCCEEDED(Preferences::GetUint(TRR_PREF("max-fails"), &fails))) {
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mDisableAfterFails = fails;
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}
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}
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return NS_OK;
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}
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nsresult
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TRRService::GetURI(nsCString &result)
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{
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MutexAutoLock lock(mLock);
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result = mPrivateURI;
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return NS_OK;
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}
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nsresult
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TRRService::GetCredentials(nsCString &result)
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{
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MutexAutoLock lock(mLock);
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result = mPrivateCred;
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return NS_OK;
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}
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nsresult
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TRRService::Start()
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{
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MOZ_ASSERT(NS_IsMainThread(), "wrong thread");
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if (!mInitialized) {
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return NS_ERROR_NOT_INITIALIZED;
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}
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return NS_OK;
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}
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TRRService::~TRRService()
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{
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MOZ_ASSERT(NS_IsMainThread(), "wrong thread");
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LOG(("Exiting TRRService\n"));
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gTRRService = nullptr;
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}
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NS_IMETHODIMP
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TRRService::Observe(nsISupports *aSubject,
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const char * aTopic,
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const char16_t * aData)
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{
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MOZ_ASSERT(NS_IsMainThread(), "wrong thread");
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LOG(("TRR::Observe() topic=%s\n", aTopic));
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if (!strcmp(aTopic, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID)) {
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ReadPrefs(NS_ConvertUTF16toUTF8(aData).get());
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if (((mConfirmationState == CONFIRM_INIT) &&
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!mBootstrapAddr.IsEmpty() &&
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(mMode == MODE_TRRONLY)) ||
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(mConfirmationState == CONFIRM_FAILED)) {
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mConfirmationState = CONFIRM_TRYING;
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MaybeConfirm();
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}
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} else if (!strcmp(aTopic, kOpenCaptivePortalLoginEvent)) {
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// We are in a captive portal
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LOG(("TRRservice in captive portal\n"));
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mCaptiveIsPassed = false;
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} else if (!strcmp(aTopic, NS_CAPTIVE_PORTAL_CONNECTIVITY)) {
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nsAutoCString data = NS_ConvertUTF16toUTF8(aData);
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LOG(("TRRservice captive portal was %s\n", data.get()));
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if (!mTRRBLStorage) {
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mTRRBLStorage = DataStorage::Get(DataStorageClass::TRRBlacklist);
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if (mTRRBLStorage) {
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bool storageWillPersist = true;
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if (NS_FAILED(mTRRBLStorage->Init(storageWillPersist))) {
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mTRRBLStorage = nullptr;
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}
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if (mClearTRRBLStorage) {
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if (mTRRBLStorage) {
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mTRRBLStorage->Clear();
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}
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mClearTRRBLStorage = false;
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}
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}
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}
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if (!mCaptiveIsPassed) {
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if (mConfirmationState != CONFIRM_OK) {
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mConfirmationState = CONFIRM_TRYING;
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MaybeConfirm();
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}
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} else {
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LOG(("TRRservice CP clear when already up!\n"));
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}
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mCaptiveIsPassed = true;
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} else if (!strcmp(aTopic, kClearPrivateData) ||
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!strcmp(aTopic, kPurge)) {
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// flush the TRR blacklist, both in-memory and on-disk
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if (mTRRBLStorage) {
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mTRRBLStorage->Clear();
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}
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}
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return NS_OK;
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}
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void
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TRRService::MaybeConfirm()
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{
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if (TRR_DISABLED(mMode) || mConfirmer ||
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mConfirmationState != CONFIRM_TRYING) {
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LOG(("TRRService:MaybeConfirm mode=%d, mConfirmer=%p mConfirmationState=%d\n",
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(int)mMode, (void *)mConfirmer, (int)mConfirmationState));
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return;
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}
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nsAutoCString host;
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{
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MutexAutoLock lock(mLock);
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host = mConfirmationNS;
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}
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if (host.Equals("skip")) {
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LOG(("TRRService starting confirmation test %s SKIPPED\n",
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mPrivateURI.get()));
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mConfirmationState = CONFIRM_OK;
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} else {
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LOG(("TRRService starting confirmation test %s %s\n",
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mPrivateURI.get(), host.get()));
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mConfirmer = new TRR(this, host, TRRTYPE_NS, EmptyCString(), false);
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NS_DispatchToMainThread(mConfirmer);
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}
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}
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bool
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TRRService::MaybeBootstrap(const nsACString &aPossible, nsACString &aResult)
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{
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MutexAutoLock lock(mLock);
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if (TRR_DISABLED(mMode) || mBootstrapAddr.IsEmpty()) {
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return false;
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}
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nsCOMPtr<nsIURI> url;
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nsresult rv = NS_MutateURI(NS_STANDARDURLMUTATOR_CONTRACTID)
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.Apply(NS_MutatorMethod(&nsIStandardURLMutator::Init,
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nsIStandardURL::URLTYPE_STANDARD, 443,
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mPrivateURI, nullptr, nullptr, nullptr))
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.Finalize(url);
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if (NS_FAILED(rv)) {
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LOG(("TRRService::MaybeBootstrap failed to create URI!\n"));
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return false;
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}
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nsAutoCString host;
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url->GetHost(host);
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if (!aPossible.Equals(host)) {
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return false;
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}
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LOG(("TRRService::MaybeBootstrap: use %s instead of %s\n",
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mBootstrapAddr.get(), host.get()));
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aResult = mBootstrapAddr;
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return true;
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}
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// When running in TRR-only mode, the blacklist is not used and it will also
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// try resolving the localhost / .local names.
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bool
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TRRService::IsTRRBlacklisted(const nsACString &aHost, const nsACString &aOriginSuffix,
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bool aPrivateBrowsing,
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bool aParentsToo) // false if domain
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{
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if (mMode == MODE_TRRONLY) {
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return false; // might as well try
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}
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// hardcode these so as to not worry about expiration
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if (StringEndsWith(aHost, NS_LITERAL_CSTRING(".local")) ||
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aHost.Equals(NS_LITERAL_CSTRING("localhost"))) {
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return true;
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}
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if (!Enabled()) {
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return true;
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}
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if (!mTRRBLStorage) {
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return false;
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}
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// Only use the Storage API in the main thread
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MOZ_ASSERT(NS_IsMainThread(), "wrong thread");
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if (mClearTRRBLStorage) {
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mTRRBLStorage->Clear();
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mClearTRRBLStorage = false;
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return false; // just cleared!
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}
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int32_t dot = aHost.FindChar('.');
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if ((dot == kNotFound) && aParentsToo) {
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// Only if a full host name. Domains can be dotless to be able to
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// blacklist entire TLDs
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return true;
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} else if(dot != kNotFound) {
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// there was a dot, check the parent first
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dot++;
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nsDependentCSubstring domain = Substring(aHost, dot, aHost.Length() - dot);
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nsAutoCString check(domain);
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// recursively check the domain part of this name
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if (IsTRRBlacklisted(check, aOriginSuffix, aPrivateBrowsing, false)) {
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// the domain name of this name is already TRR blacklisted
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return true;
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}
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}
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MutexAutoLock lock(mLock);
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// use a unified casing for the hashkey
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nsAutoCString hashkey(aHost + aOriginSuffix);
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nsCString val(mTRRBLStorage->Get(hashkey, aPrivateBrowsing ?
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DataStorage_Private : DataStorage_Persistent));
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|
|
if (!val.IsEmpty()) {
|
|
nsresult code;
|
|
int32_t until = val.ToInteger(&code) + mTRRBlacklistExpireTime;
|
|
int32_t expire = NowInSeconds();
|
|
if (NS_SUCCEEDED(code) && (until > expire)) {
|
|
LOG(("Host [%s] is TRR blacklisted\n", nsCString(aHost).get()));
|
|
return true;
|
|
}
|
|
// the blacklisted entry has expired
|
|
RefPtr<DataStorage> storage = mTRRBLStorage;
|
|
nsCOMPtr<nsIRunnable> runnable =
|
|
NS_NewRunnableFunction("proxyStorageRemove",
|
|
[storage, hashkey, aPrivateBrowsing]() {
|
|
storage->Remove(hashkey, aPrivateBrowsing ?
|
|
DataStorage_Private :
|
|
DataStorage_Persistent);
|
|
});
|
|
if (!NS_IsMainThread()) {
|
|
NS_DispatchToMainThread(runnable);
|
|
} else {
|
|
runnable->Run();
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
class ProxyBlacklist : public Runnable
|
|
{
|
|
public:
|
|
ProxyBlacklist(TRRService *service, const nsACString &aHost,
|
|
const nsACString &aOriginSuffix,
|
|
bool pb, bool aParentsToo)
|
|
: mozilla::Runnable("proxyBlackList")
|
|
, mService(service)
|
|
, mHost(aHost)
|
|
, mOriginSuffix(aOriginSuffix)
|
|
, mPB(pb)
|
|
, mParentsToo(aParentsToo)
|
|
{ }
|
|
|
|
NS_IMETHOD Run() override
|
|
{
|
|
mService->TRRBlacklist(mHost, mOriginSuffix, mPB, mParentsToo);
|
|
mService = nullptr;
|
|
return NS_OK;
|
|
}
|
|
|
|
private:
|
|
RefPtr<TRRService> mService;
|
|
nsCString mHost;
|
|
nsCString mOriginSuffix;
|
|
bool mPB;
|
|
bool mParentsToo;
|
|
};
|
|
|
|
void
|
|
TRRService::TRRBlacklist(const nsACString &aHost, const nsACString &aOriginSuffix,
|
|
bool privateBrowsing, bool aParentsToo)
|
|
{
|
|
if (!mTRRBLStorage) {
|
|
return;
|
|
}
|
|
|
|
if (!NS_IsMainThread()) {
|
|
NS_DispatchToMainThread(new ProxyBlacklist(this, aHost, aOriginSuffix,
|
|
privateBrowsing, aParentsToo));
|
|
return;
|
|
}
|
|
|
|
LOG(("TRR blacklist %s\n", nsCString(aHost).get()));
|
|
nsAutoCString hashkey(aHost + aOriginSuffix);
|
|
nsAutoCString val;
|
|
val.AppendInt( NowInSeconds() ); // creation time
|
|
|
|
// this overwrites any existing entry
|
|
{
|
|
MutexAutoLock lock(mLock);
|
|
mTRRBLStorage->Put(hashkey, val, privateBrowsing ?
|
|
DataStorage_Private : DataStorage_Persistent);
|
|
}
|
|
|
|
if (aParentsToo) {
|
|
// when given a full host name, verify its domain as well
|
|
int32_t dot = aHost.FindChar('.');
|
|
if (dot != kNotFound) {
|
|
// this has a domain to be checked
|
|
dot++;
|
|
nsDependentCSubstring domain = Substring(aHost, dot, aHost.Length() - dot);
|
|
nsAutoCString check(domain);
|
|
if (IsTRRBlacklisted(check, aOriginSuffix, privateBrowsing, false)) {
|
|
// the domain part is already blacklisted, no need to add this entry
|
|
return;
|
|
}
|
|
// verify 'check' over TRR
|
|
LOG(("TRR: verify if '%s' resolves as NS\n", check.get()));
|
|
|
|
// check if there's an NS entry for this name
|
|
RefPtr<TRR> trr = new TRR(this, check, TRRTYPE_NS, aOriginSuffix,
|
|
privateBrowsing);
|
|
NS_DispatchToMainThread(trr);
|
|
}
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TRRService::Notify(nsITimer *aTimer)
|
|
{
|
|
if (aTimer == mRetryConfirmTimer) {
|
|
mRetryConfirmTimer = nullptr;
|
|
if (mConfirmationState == CONFIRM_FAILED) {
|
|
LOG(("TRRService retry NS of %s\n", mConfirmationNS.get()));
|
|
mConfirmationState = CONFIRM_TRYING;
|
|
MaybeConfirm();
|
|
}
|
|
} else {
|
|
MOZ_CRASH("Unknown timer");
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
void
|
|
TRRService::TRRIsOkay(enum TrrOkay aReason)
|
|
{
|
|
Telemetry::AccumulateCategorical(aReason == OKAY_NORMAL ?
|
|
Telemetry::LABELS_DNS_TRR_SUCCESS::Fine :
|
|
(aReason == OKAY_TIMEOUT ?
|
|
Telemetry::LABELS_DNS_TRR_SUCCESS::Timeout :
|
|
Telemetry::LABELS_DNS_TRR_SUCCESS::Bad));
|
|
if (aReason == OKAY_NORMAL) {
|
|
mTRRFailures = 0;
|
|
} else if ((mMode == MODE_TRRFIRST) && (mConfirmationState == CONFIRM_OK)) {
|
|
// only count failures while in OK state
|
|
uint32_t fails = ++mTRRFailures;
|
|
if (fails >= mDisableAfterFails) {
|
|
LOG(("TRRService goes FAILED after %u failures in a row\n", fails));
|
|
mConfirmationState = CONFIRM_FAILED;
|
|
// Fire off a timer and start re-trying the NS domain again
|
|
NS_NewTimerWithCallback(getter_AddRefs(mRetryConfirmTimer),
|
|
this, mRetryConfirmInterval,
|
|
nsITimer::TYPE_ONE_SHOT);
|
|
mTRRFailures = 0; // clear it again
|
|
}
|
|
}
|
|
}
|
|
|
|
AHostResolver::LookupStatus
|
|
TRRService::CompleteLookup(nsHostRecord *rec, nsresult status, AddrInfo *aNewRRSet, bool pb,
|
|
const nsACString &aOriginSuffix)
|
|
{
|
|
// this is an NS check for the TRR blacklist or confirmationNS check
|
|
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(!rec);
|
|
|
|
nsAutoPtr<AddrInfo> newRRSet(aNewRRSet);
|
|
MOZ_ASSERT(newRRSet && newRRSet->IsTRR() == TRRTYPE_NS);
|
|
|
|
MOZ_ASSERT(!mConfirmer || (mConfirmationState == CONFIRM_TRYING));
|
|
if (mConfirmationState == CONFIRM_TRYING) {
|
|
MOZ_ASSERT(mConfirmer);
|
|
mConfirmationState = NS_SUCCEEDED(status) ? CONFIRM_OK : CONFIRM_FAILED;
|
|
LOG(("TRRService finishing confirmation test %s %d %X\n",
|
|
mPrivateURI.get(), (int)mConfirmationState, (unsigned int)status));
|
|
mConfirmer = nullptr;
|
|
if (mConfirmationState == CONFIRM_FAILED) {
|
|
// retry failed NS confirmation
|
|
NS_NewTimerWithCallback(getter_AddRefs(mRetryConfirmTimer),
|
|
this, mRetryConfirmInterval,
|
|
nsITimer::TYPE_ONE_SHOT);
|
|
if (mRetryConfirmInterval < 64000) {
|
|
// double the interval up to this point
|
|
mRetryConfirmInterval *= 2;
|
|
}
|
|
} else {
|
|
if (mMode != MODE_TRRONLY) {
|
|
// don't accumulate trronly data here since trronly failures are
|
|
// handled above by trying again, so counting the successes here would
|
|
// skew the numbers
|
|
Telemetry::Accumulate(Telemetry::DNS_TRR_NS_VERFIFIED,
|
|
(mConfirmationState == CONFIRM_OK));
|
|
}
|
|
mRetryConfirmInterval = 1000;
|
|
}
|
|
return LOOKUP_OK;
|
|
}
|
|
|
|
// when called without a host record, this is a domain name check response.
|
|
if (NS_SUCCEEDED(status)) {
|
|
LOG(("TRR verified %s to be fine!\n", newRRSet->mHostName.get()));
|
|
} else {
|
|
LOG(("TRR says %s doesn't resolve as NS!\n", newRRSet->mHostName.get()));
|
|
TRRBlacklist(newRRSet->mHostName, aOriginSuffix, pb, false);
|
|
}
|
|
return LOOKUP_OK;
|
|
}
|
|
|
|
AHostResolver::LookupStatus
|
|
TRRService::CompleteLookupByType(nsHostRecord *, nsresult,
|
|
const nsTArray<nsCString> *aResult,
|
|
uint32_t aTtl,
|
|
bool aPb)
|
|
{
|
|
return LOOKUP_OK;
|
|
}
|
|
|
|
#undef LOG
|
|
|
|
} // namespace net
|
|
} // namespace mozilla
|