forked from mirrors/gecko-dev
2666e16a53
Backed out changeset 7c998456e1fd (bug 1522412) Backed out changeset ebb581ddf1d1 (bug 1522412) Backed out changeset 850e1c68d978 (bug 1522412) Backed out changeset fe288a48cecb (bug 1522412) Backed out changeset 5399bca472b1 (bug 1522412) Backed out changeset 91e5b339fe11 (bug 1522412) Backed out changeset b80098d0a5c4 (bug 1522412)
875 lines
29 KiB
C++
875 lines
29 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 "mozilla/Components.h"
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#include "nsCRT.h"
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#include "nsIHttpChannel.h"
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#include "nsIObserverService.h"
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#include "nsIStringStream.h"
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#include "nsIUploadChannel.h"
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#include "nsIURI.h"
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#include "nsIUrlClassifierDBService.h"
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#include "nsUrlClassifierUtils.h"
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#include "nsNetUtil.h"
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#include "nsStreamUtils.h"
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#include "nsStringStream.h"
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#include "nsUrlClassifierStreamUpdater.h"
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#include "nsUrlClassifierUtils.h"
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#include "mozilla/BasePrincipal.h"
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#include "mozilla/ErrorNames.h"
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#include "mozilla/Logging.h"
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#include "mozilla/ResultExtensions.h"
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#include "nsIInterfaceRequestor.h"
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#include "mozilla/LoadContext.h"
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#include "mozilla/Telemetry.h"
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#include "nsContentUtils.h"
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#include "nsIURLFormatter.h"
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#include "Classifier.h"
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#include "UrlClassifierTelemetryUtils.h"
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using namespace mozilla::safebrowsing;
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using namespace mozilla;
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#define DEFAULT_RESPONSE_TIMEOUT_MS 15 * 1000
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#define DEFAULT_TIMEOUT_MS 60 * 1000
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static_assert(DEFAULT_TIMEOUT_MS > DEFAULT_RESPONSE_TIMEOUT_MS,
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"General timeout must be greater than reponse timeout");
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static const char *gQuitApplicationMessage = "quit-application";
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static uint32_t sResponseTimeoutMs = DEFAULT_RESPONSE_TIMEOUT_MS;
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static uint32_t sTimeoutMs = DEFAULT_TIMEOUT_MS;
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// Limit the list file size to 32mb
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const uint32_t MAX_FILE_SIZE = (32 * 1024 * 1024);
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// Retry delay when we failed to DownloadUpdate() if due to
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// DBService busy.
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const uint32_t FETCH_NEXT_REQUEST_RETRY_DELAY_MS = 1000;
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#undef LOG
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// MOZ_LOG=UrlClassifierStreamUpdater:5
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static mozilla::LazyLogModule gUrlClassifierStreamUpdaterLog(
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"UrlClassifierStreamUpdater");
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#define LOG(args) TrimAndLog args
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#define LOG_ENABLED() \
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MOZ_LOG_TEST(gUrlClassifierStreamUpdaterLog, mozilla::LogLevel::Debug)
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// Calls nsIURLFormatter::TrimSensitiveURLs to remove sensitive
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// info from the logging message.
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static MOZ_FORMAT_PRINTF(1, 2) void TrimAndLog(const char *aFmt, ...) {
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nsString raw;
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va_list ap;
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va_start(ap, aFmt);
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raw.AppendPrintf(aFmt, ap);
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va_end(ap);
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nsCOMPtr<nsIURLFormatter> urlFormatter =
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do_GetService("@mozilla.org/toolkit/URLFormatterService;1");
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nsString trimmed;
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nsresult rv = urlFormatter->TrimSensitiveURLs(raw, trimmed);
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if (NS_FAILED(rv)) {
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trimmed = EmptyString();
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}
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// Use %s so we aren't exposing random strings to printf interpolation.
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MOZ_LOG(gUrlClassifierStreamUpdaterLog, mozilla::LogLevel::Debug,
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("%s", NS_ConvertUTF16toUTF8(trimmed).get()));
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}
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// This class does absolutely nothing, except pass requests onto the DBService.
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///////////////////////////////////////////////////////////////////////////////
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// nsIUrlClassiferStreamUpdater implementation
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// Handles creating/running the stream listener
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nsUrlClassifierStreamUpdater::nsUrlClassifierStreamUpdater()
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: mIsUpdating(false),
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mInitialized(false),
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mDownloadError(false),
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mBeganStream(false),
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mChannel(nullptr),
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mTelemetryClockStart(0) {
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LOG(("nsUrlClassifierStreamUpdater init [this=%p]", this));
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}
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NS_IMPL_ISUPPORTS(nsUrlClassifierStreamUpdater, nsIUrlClassifierStreamUpdater,
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nsIUrlClassifierUpdateObserver, nsIRequestObserver,
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nsIStreamListener, nsIObserver, nsIInterfaceRequestor,
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nsITimerCallback, nsINamed)
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/**
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* Clear out the update.
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*/
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void nsUrlClassifierStreamUpdater::DownloadDone() {
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LOG(("nsUrlClassifierStreamUpdater::DownloadDone [this=%p]", this));
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mIsUpdating = false;
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mPendingUpdates.Clear();
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mDownloadError = false;
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mCurrentRequest = nullptr;
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}
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///////////////////////////////////////////////////////////////////////////////
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// nsIUrlClassifierStreamUpdater implementation
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nsresult nsUrlClassifierStreamUpdater::FetchUpdate(
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nsIURI *aUpdateUrl, const nsACString &aRequestPayload, bool aIsPostRequest,
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const nsACString &aStreamTable) {
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#ifdef DEBUG
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LOG(("Fetching update %s from %s", aRequestPayload.Data(),
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aUpdateUrl->GetSpecOrDefault().get()));
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#endif
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nsresult rv;
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uint32_t loadFlags =
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nsIChannel::INHIBIT_CACHING | nsIChannel::LOAD_BYPASS_CACHE;
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rv = NS_NewChannel(getter_AddRefs(mChannel), aUpdateUrl,
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nsContentUtils::GetSystemPrincipal(),
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nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL,
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nsIContentPolicy::TYPE_OTHER,
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nullptr, // nsICookieSettings
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nullptr, // aPerformanceStorage
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nullptr, // aLoadGroup
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this, // aInterfaceRequestor
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loadFlags);
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsILoadInfo> loadInfo = mChannel->LoadInfo();
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mozilla::OriginAttributes attrs;
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attrs.mFirstPartyDomain.AssignLiteral(NECKO_SAFEBROWSING_FIRST_PARTY_DOMAIN);
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loadInfo->SetOriginAttributes(attrs);
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mBeganStream = false;
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if (!aIsPostRequest) {
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// We use POST method to send our request in v2. In v4, the request
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// needs to be embedded to the URL and use GET method to send.
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// However, from the Chromium source code, a extended HTTP header has
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// to be sent along with the request to make the request succeed.
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// The following description is from Chromium source code:
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//
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// "The following header informs the envelope server (which sits in
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// front of Google's stubby server) that the received GET request should be
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// interpreted as a POST."
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//
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nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(mChannel, &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = httpChannel->SetRequestHeader(
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NS_LITERAL_CSTRING("X-HTTP-Method-Override"),
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NS_LITERAL_CSTRING("POST"), false);
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NS_ENSURE_SUCCESS(rv, rv);
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} else if (!aRequestPayload.IsEmpty()) {
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rv = AddRequestBody(aRequestPayload);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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// Set the appropriate content type for file/data URIs, for unit testing
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// purposes.
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// This is only used for testing and should be deleted.
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bool match;
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if ((NS_SUCCEEDED(aUpdateUrl->SchemeIs("file", &match)) && match) ||
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(NS_SUCCEEDED(aUpdateUrl->SchemeIs("data", &match)) && match)) {
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mChannel->SetContentType(
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NS_LITERAL_CSTRING("application/vnd.google.safebrowsing-update"));
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} else {
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// We assume everything else is an HTTP request.
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// Disable keepalive.
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nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(mChannel, &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = httpChannel->SetRequestHeader(NS_LITERAL_CSTRING("Connection"),
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NS_LITERAL_CSTRING("close"), false);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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// Make the request.
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rv = mChannel->AsyncOpen(this);
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NS_ENSURE_SUCCESS(rv, rv);
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mTelemetryClockStart = PR_IntervalNow();
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mStreamTable = aStreamTable;
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static bool preferencesInitialized = false;
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if (!preferencesInitialized) {
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mozilla::Preferences::AddUintVarCache(
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&sTimeoutMs, "urlclassifier.update.timeout_ms", DEFAULT_TIMEOUT_MS);
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mozilla::Preferences::AddUintVarCache(
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&sResponseTimeoutMs, "urlclassifier.update.response_timeout_ms",
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DEFAULT_RESPONSE_TIMEOUT_MS);
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preferencesInitialized = true;
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}
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if (sResponseTimeoutMs > sTimeoutMs) {
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NS_WARNING(
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"Safe Browsing response timeout is greater than the general "
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"timeout. Disabling these update timeouts.");
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return NS_OK;
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}
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MOZ_TRY_VAR(mResponseTimeoutTimer,
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NS_NewTimerWithCallback(this, sResponseTimeoutMs,
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nsITimer::TYPE_ONE_SHOT));
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MOZ_TRY_VAR(mTimeoutTimer, NS_NewTimerWithCallback(this, sTimeoutMs,
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nsITimer::TYPE_ONE_SHOT));
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if (sTimeoutMs < DEFAULT_TIMEOUT_MS) {
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LOG(("Download update timeout %d ms (< %d ms) would be too small",
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sTimeoutMs, DEFAULT_TIMEOUT_MS));
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}
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return NS_OK;
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}
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nsresult nsUrlClassifierStreamUpdater::FetchUpdate(
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const nsACString &aUpdateUrl, const nsACString &aRequestPayload,
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bool aIsPostRequest, const nsACString &aStreamTable) {
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LOG(("(pre) Fetching update from %s\n",
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PromiseFlatCString(aUpdateUrl).get()));
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nsCString updateUrl(aUpdateUrl);
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if (!aIsPostRequest) {
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updateUrl.AppendPrintf("&$req=%s", nsCString(aRequestPayload).get());
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}
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nsCOMPtr<nsIURI> uri;
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nsresult rv = NS_NewURI(getter_AddRefs(uri), updateUrl);
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NS_ENSURE_SUCCESS(rv, rv);
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nsAutoCString urlSpec;
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uri->GetAsciiSpec(urlSpec);
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LOG(("(post) Fetching update from %s\n", urlSpec.get()));
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return FetchUpdate(uri, aRequestPayload, aIsPostRequest, aStreamTable);
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}
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NS_IMETHODIMP
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nsUrlClassifierStreamUpdater::DownloadUpdates(
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const nsACString &aRequestTables, const nsACString &aRequestPayload,
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bool aIsPostRequest, const nsACString &aUpdateUrl,
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nsIUrlClassifierCallback *aSuccessCallback,
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nsIUrlClassifierCallback *aUpdateErrorCallback,
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nsIUrlClassifierCallback *aDownloadErrorCallback, bool *_retval) {
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NS_ENSURE_ARG(aSuccessCallback);
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NS_ENSURE_ARG(aUpdateErrorCallback);
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NS_ENSURE_ARG(aDownloadErrorCallback);
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if (mIsUpdating) {
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LOG(("Already updating, queueing update %s from %s", aRequestPayload.Data(),
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aUpdateUrl.Data()));
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*_retval = false;
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UpdateRequest *request = mPendingRequests.AppendElement(fallible);
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if (!request) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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BuildUpdateRequest(aRequestTables, aRequestPayload, aIsPostRequest,
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aUpdateUrl, aSuccessCallback, aUpdateErrorCallback,
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aDownloadErrorCallback, request);
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return NS_OK;
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}
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if (aUpdateUrl.IsEmpty()) {
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NS_ERROR("updateUrl not set");
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return NS_ERROR_NOT_INITIALIZED;
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}
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nsresult rv;
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if (!mInitialized) {
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// Add an observer for shutdown so we can cancel any pending list
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// downloads. quit-application is the same event that the download
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// manager listens for and uses to cancel pending downloads.
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nsCOMPtr<nsIObserverService> observerService =
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mozilla::services::GetObserverService();
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if (!observerService) return NS_ERROR_FAILURE;
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observerService->AddObserver(this, gQuitApplicationMessage, false);
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mDBService = mozilla::components::UrlClassifierDB::Service(&rv);
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NS_ENSURE_SUCCESS(rv, rv);
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mInitialized = true;
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}
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rv = mDBService->BeginUpdate(this, aRequestTables);
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if (rv == NS_ERROR_NOT_AVAILABLE) {
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LOG(("Service busy, already updating, queuing update %s from %s",
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aRequestPayload.Data(), aUpdateUrl.Data()));
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*_retval = false;
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UpdateRequest *request = mPendingRequests.AppendElement(fallible);
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if (!request) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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BuildUpdateRequest(aRequestTables, aRequestPayload, aIsPostRequest,
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aUpdateUrl, aSuccessCallback, aUpdateErrorCallback,
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aDownloadErrorCallback, request);
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// We cannot guarantee that we will be notified when DBService is done
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// processing the current update, so we fire a retry timer on our own.
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MOZ_TRY_VAR(mFetchNextRequestTimer,
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NS_NewTimerWithCallback(this, FETCH_NEXT_REQUEST_RETRY_DELAY_MS,
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nsITimer::TYPE_ONE_SHOT));
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return NS_OK;
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}
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if (NS_FAILED(rv)) {
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return rv;
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}
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nsUrlClassifierUtils *urlUtil = nsUrlClassifierUtils::GetInstance();
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if (NS_WARN_IF(!urlUtil)) {
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return NS_ERROR_FAILURE;
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}
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nsTArray<nsCString> tables;
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mozilla::safebrowsing::Classifier::SplitTables(aRequestTables, tables);
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urlUtil->GetTelemetryProvider(tables.SafeElementAt(0, EmptyCString()),
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mTelemetryProvider);
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mCurrentRequest = MakeUnique<UpdateRequest>();
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BuildUpdateRequest(aRequestTables, aRequestPayload, aIsPostRequest,
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aUpdateUrl, aSuccessCallback, aUpdateErrorCallback,
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aDownloadErrorCallback, mCurrentRequest.get());
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mIsUpdating = true;
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*_retval = true;
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LOG(("FetchUpdate: %s", mCurrentRequest->mUrl.Data()));
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return FetchUpdate(aUpdateUrl, aRequestPayload, aIsPostRequest,
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EmptyCString());
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}
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///////////////////////////////////////////////////////////////////////////////
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// nsIUrlClassifierUpdateObserver implementation
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NS_IMETHODIMP
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nsUrlClassifierStreamUpdater::UpdateUrlRequested(const nsACString &aUrl,
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const nsACString &aTable) {
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LOG(("Queuing requested update from %s\n", PromiseFlatCString(aUrl).get()));
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PendingUpdate *update = mPendingUpdates.AppendElement(fallible);
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if (!update) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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// Allow data: and file: urls for unit testing purposes, otherwise assume http
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if (StringBeginsWith(aUrl, NS_LITERAL_CSTRING("data:")) ||
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StringBeginsWith(aUrl, NS_LITERAL_CSTRING("file:"))) {
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update->mUrl = aUrl;
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} else {
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// For unittesting update urls to localhost should use http, not https
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// (otherwise the connection will fail silently, since there will be no
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// cert available).
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if (!StringBeginsWith(aUrl, NS_LITERAL_CSTRING("localhost"))) {
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update->mUrl = NS_LITERAL_CSTRING("https://") + aUrl;
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} else {
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update->mUrl = NS_LITERAL_CSTRING("http://") + aUrl;
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}
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}
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update->mTable = aTable;
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return NS_OK;
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}
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nsresult nsUrlClassifierStreamUpdater::FetchNext() {
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if (mPendingUpdates.Length() == 0) {
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return NS_OK;
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}
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PendingUpdate &update = mPendingUpdates[0];
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LOG(("Fetching update url: %s\n", update.mUrl.get()));
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nsresult rv =
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FetchUpdate(update.mUrl, EmptyCString(),
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true, // This method is for v2 and v2 is always a POST.
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update.mTable);
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if (NS_FAILED(rv)) {
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nsAutoCString errorName;
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mozilla::GetErrorName(rv, errorName);
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LOG(("Error (%s) fetching update url: %s\n", errorName.get(),
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update.mUrl.get()));
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// We can commit the urls that we've applied so far. This is
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// probably a transient server problem, so trigger backoff.
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mDownloadError = true;
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mDBService->FinishUpdate();
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return rv;
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}
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mPendingUpdates.RemoveElementAt(0);
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return NS_OK;
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}
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nsresult nsUrlClassifierStreamUpdater::FetchNextRequest() {
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if (mPendingRequests.Length() == 0) {
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LOG(("No more requests, returning"));
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return NS_OK;
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}
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UpdateRequest request = mPendingRequests[0];
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mPendingRequests.RemoveElementAt(0);
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LOG(("Stream updater: fetching next request: %s, %s", request.mTables.get(),
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request.mUrl.get()));
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bool dummy;
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DownloadUpdates(request.mTables, request.mRequestPayload,
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request.mIsPostRequest, request.mUrl,
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request.mSuccessCallback, request.mUpdateErrorCallback,
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request.mDownloadErrorCallback, &dummy);
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return NS_OK;
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}
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void nsUrlClassifierStreamUpdater::BuildUpdateRequest(
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const nsACString &aRequestTables, const nsACString &aRequestPayload,
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bool aIsPostRequest, const nsACString &aUpdateUrl,
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nsIUrlClassifierCallback *aSuccessCallback,
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nsIUrlClassifierCallback *aUpdateErrorCallback,
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nsIUrlClassifierCallback *aDownloadErrorCallback, UpdateRequest *aRequest) {
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MOZ_ASSERT(aRequest);
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aRequest->mTables = aRequestTables;
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aRequest->mRequestPayload = aRequestPayload;
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aRequest->mIsPostRequest = aIsPostRequest;
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aRequest->mUrl = aUpdateUrl;
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aRequest->mSuccessCallback = aSuccessCallback;
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aRequest->mUpdateErrorCallback = aUpdateErrorCallback;
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aRequest->mDownloadErrorCallback = aDownloadErrorCallback;
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}
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NS_IMETHODIMP
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nsUrlClassifierStreamUpdater::StreamFinished(nsresult status,
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uint32_t requestedDelay) {
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// We are a service and may not be reset with Init between calls, so reset
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// mBeganStream manually.
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mBeganStream = false;
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if (LOG_ENABLED()) {
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nsAutoCString errorName;
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mozilla::GetErrorName(status, errorName);
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LOG(("nsUrlClassifierStreamUpdater::StreamFinished [%s, %d]",
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errorName.get(), requestedDelay));
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}
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if (NS_FAILED(status) || mPendingUpdates.Length() == 0) {
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// We're done.
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LOG(("nsUrlClassifierStreamUpdater::Done [this=%p]", this));
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mDBService->FinishUpdate();
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return NS_OK;
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}
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// This timer is for fetching indirect updates ("forwards") from any "u:"
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// lines that we encountered while processing the server response. It is NOT
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// for scheduling the next time we pull the list from the server. That's a
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// different timer in listmanager.js (see bug 1110891).
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nsresult rv;
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rv = NS_NewTimerWithCallback(getter_AddRefs(mFetchIndirectUpdatesTimer), this,
|
|
requestedDelay, nsITimer::TYPE_ONE_SHOT);
|
|
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"Unable to initialize timer, fetching next safebrowsing item "
|
|
"immediately");
|
|
return FetchNext();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsUrlClassifierStreamUpdater::UpdateSuccess(uint32_t requestedTimeout) {
|
|
LOG(("nsUrlClassifierStreamUpdater::UpdateSuccess [this=%p]", this));
|
|
if (mPendingUpdates.Length() != 0) {
|
|
NS_WARNING("Didn't fetch all safebrowsing update redirects");
|
|
}
|
|
|
|
// DownloadDone() clears mSuccessCallback, so we save it off here.
|
|
nsCOMPtr<nsIUrlClassifierCallback> successCallback =
|
|
mDownloadError ? nullptr : mCurrentRequest->mSuccessCallback.get();
|
|
nsCOMPtr<nsIUrlClassifierCallback> downloadErrorCallback =
|
|
mDownloadError ? mCurrentRequest->mDownloadErrorCallback.get() : nullptr;
|
|
|
|
DownloadDone();
|
|
|
|
nsAutoCString strTimeout;
|
|
strTimeout.AppendInt(requestedTimeout);
|
|
if (successCallback) {
|
|
LOG(("nsUrlClassifierStreamUpdater::UpdateSuccess callback [this=%p]",
|
|
this));
|
|
successCallback->HandleEvent(strTimeout);
|
|
} else if (downloadErrorCallback) {
|
|
downloadErrorCallback->HandleEvent(mDownloadErrorStatusStr);
|
|
mDownloadErrorStatusStr = EmptyCString();
|
|
LOG(("Notify download error callback in UpdateSuccess [this=%p]", this));
|
|
}
|
|
// Now fetch the next request
|
|
LOG(("stream updater: calling into fetch next request"));
|
|
FetchNextRequest();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsUrlClassifierStreamUpdater::UpdateError(nsresult result) {
|
|
LOG(("nsUrlClassifierStreamUpdater::UpdateError [this=%p]", this));
|
|
|
|
// DownloadDone() clears mUpdateErrorCallback, so we save it off here.
|
|
nsCOMPtr<nsIUrlClassifierCallback> errorCallback =
|
|
mDownloadError ? nullptr : mCurrentRequest->mUpdateErrorCallback.get();
|
|
nsCOMPtr<nsIUrlClassifierCallback> downloadErrorCallback =
|
|
mDownloadError ? mCurrentRequest->mDownloadErrorCallback.get() : nullptr;
|
|
DownloadDone();
|
|
|
|
if (errorCallback) {
|
|
nsAutoCString strResult;
|
|
mozilla::GetErrorName(result, strResult);
|
|
errorCallback->HandleEvent(strResult);
|
|
} else if (downloadErrorCallback) {
|
|
LOG(("Notify download error callback in UpdateError [this=%p]", this));
|
|
downloadErrorCallback->HandleEvent(mDownloadErrorStatusStr);
|
|
mDownloadErrorStatusStr = EmptyCString();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsUrlClassifierStreamUpdater::AddRequestBody(
|
|
const nsACString &aRequestBody) {
|
|
nsresult rv;
|
|
nsCOMPtr<nsIStringInputStream> strStream =
|
|
do_CreateInstance(NS_STRINGINPUTSTREAM_CONTRACTID, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = strStream->SetData(aRequestBody.BeginReading(), aRequestBody.Length());
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIUploadChannel> uploadChannel = do_QueryInterface(mChannel, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = uploadChannel->SetUploadStream(strStream,
|
|
NS_LITERAL_CSTRING("text/plain"), -1);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(mChannel, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = httpChannel->SetRequestMethod(NS_LITERAL_CSTRING("POST"));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// nsIStreamListenerObserver implementation
|
|
|
|
NS_IMETHODIMP
|
|
nsUrlClassifierStreamUpdater::OnStartRequest(nsIRequest *request) {
|
|
nsresult rv;
|
|
bool downloadError = false;
|
|
nsAutoCString strStatus;
|
|
nsresult status = NS_OK;
|
|
|
|
// Only update if we got http success header
|
|
nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(request);
|
|
if (httpChannel) {
|
|
rv = httpChannel->GetStatus(&status);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (LOG_ENABLED()) {
|
|
nsAutoCString errorName, spec;
|
|
mozilla::GetErrorName(status, errorName);
|
|
nsCOMPtr<nsIURI> uri;
|
|
rv = httpChannel->GetURI(getter_AddRefs(uri));
|
|
if (NS_SUCCEEDED(rv) && uri) {
|
|
uri->GetAsciiSpec(spec);
|
|
}
|
|
LOG(
|
|
("nsUrlClassifierStreamUpdater::OnStartRequest "
|
|
"(status=%s, uri=%s, this=%p)",
|
|
errorName.get(), spec.get(), this));
|
|
}
|
|
if (mTelemetryClockStart > 0) {
|
|
uint32_t msecs =
|
|
PR_IntervalToMilliseconds(PR_IntervalNow() - mTelemetryClockStart);
|
|
mozilla::Telemetry::Accumulate(
|
|
mozilla::Telemetry::URLCLASSIFIER_UPDATE_SERVER_RESPONSE_TIME,
|
|
mTelemetryProvider, msecs);
|
|
}
|
|
|
|
if (mResponseTimeoutTimer) {
|
|
mResponseTimeoutTimer->Cancel();
|
|
mResponseTimeoutTimer = nullptr;
|
|
}
|
|
|
|
uint8_t netErrCode = NS_FAILED(status) ? NetworkErrorToBucket(status) : 0;
|
|
mozilla::Telemetry::Accumulate(
|
|
mozilla::Telemetry::URLCLASSIFIER_UPDATE_REMOTE_NETWORK_ERROR,
|
|
mTelemetryProvider, netErrCode);
|
|
|
|
if (NS_FAILED(status)) {
|
|
// Assume we're overloading the server and trigger backoff.
|
|
downloadError = true;
|
|
} else {
|
|
bool succeeded = false;
|
|
rv = httpChannel->GetRequestSucceeded(&succeeded);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
uint32_t requestStatus;
|
|
rv = httpChannel->GetResponseStatus(&requestStatus);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
mozilla::Telemetry::Accumulate(
|
|
mozilla::Telemetry::URLCLASSIFIER_UPDATE_REMOTE_STATUS2,
|
|
mTelemetryProvider, HTTPStatusToBucket(requestStatus));
|
|
if (requestStatus == 400) {
|
|
printf_stderr(
|
|
"Safe Browsing server returned a 400 during update:"
|
|
"request url = %s, payload = %s\n",
|
|
mCurrentRequest->mUrl.get(),
|
|
mCurrentRequest->mRequestPayload.get());
|
|
}
|
|
|
|
LOG(("nsUrlClassifierStreamUpdater::OnStartRequest %s (%d)",
|
|
succeeded ? "succeeded" : "failed", requestStatus));
|
|
if (!succeeded) {
|
|
// 404 or other error, pass error status back
|
|
strStatus.AppendInt(requestStatus);
|
|
downloadError = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (downloadError) {
|
|
LOG(("nsUrlClassifierStreamUpdater::Download error [this=%p]", this));
|
|
mDownloadError = true;
|
|
mDownloadErrorStatusStr = strStatus;
|
|
status = NS_ERROR_ABORT;
|
|
} else if (NS_SUCCEEDED(status)) {
|
|
MOZ_ASSERT(mCurrentRequest->mDownloadErrorCallback);
|
|
mBeganStream = true;
|
|
LOG(("nsUrlClassifierStreamUpdater::Beginning stream [this=%p]", this));
|
|
rv = mDBService->BeginStream(mStreamTable);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
mStreamTable.Truncate();
|
|
|
|
return status;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsUrlClassifierStreamUpdater::OnDataAvailable(nsIRequest *request,
|
|
nsIInputStream *aIStream,
|
|
uint64_t aSourceOffset,
|
|
uint32_t aLength) {
|
|
if (!mDBService) return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
LOG(("OnDataAvailable (%d bytes)", aLength));
|
|
|
|
if (aSourceOffset > MAX_FILE_SIZE) {
|
|
LOG((
|
|
"OnDataAvailable::Abort because exceeded the maximum file size(%" PRIu64
|
|
")",
|
|
aSourceOffset));
|
|
return NS_ERROR_FILE_TOO_BIG;
|
|
}
|
|
|
|
nsresult rv;
|
|
|
|
// Copy the data into a nsCString
|
|
nsCString chunk;
|
|
rv = NS_ConsumeStream(aIStream, aLength, chunk);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// LOG(("Chunk (%d): %s\n\n", chunk.Length(), chunk.get()));
|
|
rv = mDBService->UpdateStream(chunk);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsUrlClassifierStreamUpdater::OnStopRequest(nsIRequest *request,
|
|
nsresult aStatus) {
|
|
if (!mDBService) return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
if (LOG_ENABLED()) {
|
|
nsAutoCString errorName;
|
|
mozilla::GetErrorName(aStatus, errorName);
|
|
LOG(("OnStopRequest (status %s, beganStream %s, this=%p)", errorName.get(),
|
|
mBeganStream ? "true" : "false", this));
|
|
}
|
|
|
|
nsresult rv;
|
|
|
|
if (NS_SUCCEEDED(aStatus)) {
|
|
// Success, finish this stream and move on to the next.
|
|
rv = mDBService->FinishStream();
|
|
} else if (mBeganStream) {
|
|
LOG(("OnStopRequest::Canceling update [this=%p]", this));
|
|
// We began this stream and couldn't finish it. We have to cancel the
|
|
// update, it's not in a consistent state.
|
|
rv = mDBService->CancelUpdate();
|
|
} else {
|
|
LOG(("OnStopRequest::Finishing update [this=%p]", this));
|
|
// The fetch failed, but we didn't start the stream (probably a
|
|
// server or connection error). We can commit what we've applied
|
|
// so far, and request again later.
|
|
rv = mDBService->FinishUpdate();
|
|
}
|
|
|
|
if (mResponseTimeoutTimer) {
|
|
mResponseTimeoutTimer->Cancel();
|
|
mResponseTimeoutTimer = nullptr;
|
|
}
|
|
|
|
// mResponseTimeoutTimer may be cleared in OnStartRequest, so we check
|
|
// mTimeoutTimer to see whether the update was has timed out
|
|
if (mTimeoutTimer) {
|
|
mozilla::Telemetry::Accumulate(
|
|
mozilla::Telemetry::URLCLASSIFIER_UPDATE_TIMEOUT, mTelemetryProvider,
|
|
static_cast<uint8_t>(eNoTimeout));
|
|
mTimeoutTimer->Cancel();
|
|
mTimeoutTimer = nullptr;
|
|
}
|
|
|
|
mTelemetryProvider.Truncate();
|
|
mTelemetryClockStart = 0;
|
|
mChannel = nullptr;
|
|
|
|
// If the fetch failed, return the network status rather than NS_OK, the
|
|
// result of finishing a possibly-empty update
|
|
if (NS_SUCCEEDED(aStatus)) {
|
|
return rv;
|
|
}
|
|
return aStatus;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// nsIObserver implementation
|
|
|
|
NS_IMETHODIMP
|
|
nsUrlClassifierStreamUpdater::Observe(nsISupports *aSubject, const char *aTopic,
|
|
const char16_t *aData) {
|
|
if (nsCRT::strcmp(aTopic, gQuitApplicationMessage) == 0) {
|
|
if (mIsUpdating && mChannel) {
|
|
LOG(("Cancel download"));
|
|
nsresult rv;
|
|
rv = mChannel->Cancel(NS_ERROR_ABORT);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
mIsUpdating = false;
|
|
mChannel = nullptr;
|
|
mTelemetryClockStart = 0;
|
|
}
|
|
if (mFetchIndirectUpdatesTimer) {
|
|
mFetchIndirectUpdatesTimer->Cancel();
|
|
mFetchIndirectUpdatesTimer = nullptr;
|
|
}
|
|
if (mFetchNextRequestTimer) {
|
|
mFetchNextRequestTimer->Cancel();
|
|
mFetchNextRequestTimer = nullptr;
|
|
}
|
|
if (mResponseTimeoutTimer) {
|
|
mResponseTimeoutTimer->Cancel();
|
|
mResponseTimeoutTimer = nullptr;
|
|
}
|
|
if (mTimeoutTimer) {
|
|
mTimeoutTimer->Cancel();
|
|
mTimeoutTimer = nullptr;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// nsIInterfaceRequestor implementation
|
|
|
|
NS_IMETHODIMP
|
|
nsUrlClassifierStreamUpdater::GetInterface(const nsIID &eventSinkIID,
|
|
void **_retval) {
|
|
return QueryInterface(eventSinkIID, _retval);
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// nsITimerCallback implementation
|
|
NS_IMETHODIMP
|
|
nsUrlClassifierStreamUpdater::Notify(nsITimer *timer) {
|
|
LOG(("nsUrlClassifierStreamUpdater::Notify [%p]", this));
|
|
|
|
if (timer == mFetchNextRequestTimer) {
|
|
mFetchNextRequestTimer = nullptr;
|
|
FetchNextRequest();
|
|
return NS_OK;
|
|
}
|
|
|
|
if (timer == mFetchIndirectUpdatesTimer) {
|
|
mFetchIndirectUpdatesTimer = nullptr;
|
|
// Start the update process up again.
|
|
FetchNext();
|
|
return NS_OK;
|
|
}
|
|
|
|
bool updateFailed = false;
|
|
if (timer == mResponseTimeoutTimer) {
|
|
mResponseTimeoutTimer = nullptr;
|
|
if (mTimeoutTimer) {
|
|
mTimeoutTimer->Cancel();
|
|
mTimeoutTimer = nullptr;
|
|
}
|
|
mDownloadError = true; // Trigger backoff
|
|
updateFailed = true;
|
|
MOZ_LOG(gUrlClassifierStreamUpdaterLog, mozilla::LogLevel::Error,
|
|
("Safe Browsing timed out while waiting for the update server to "
|
|
"respond."));
|
|
mozilla::Telemetry::Accumulate(
|
|
mozilla::Telemetry::URLCLASSIFIER_UPDATE_TIMEOUT, mTelemetryProvider,
|
|
static_cast<uint8_t>(eResponseTimeout));
|
|
}
|
|
|
|
if (timer == mTimeoutTimer) {
|
|
mTimeoutTimer = nullptr;
|
|
// No backoff since the connection may just be temporarily slow.
|
|
updateFailed = true;
|
|
MOZ_LOG(gUrlClassifierStreamUpdaterLog, mozilla::LogLevel::Error,
|
|
("Safe Browsing timed out while waiting for the update server to "
|
|
"finish."));
|
|
mozilla::Telemetry::Accumulate(
|
|
mozilla::Telemetry::URLCLASSIFIER_UPDATE_TIMEOUT, mTelemetryProvider,
|
|
static_cast<uint8_t>(eDownloadTimeout));
|
|
}
|
|
|
|
if (updateFailed) {
|
|
// Cancelling the channel will trigger OnStopRequest.
|
|
mozilla::Unused << mChannel->Cancel(NS_ERROR_ABORT);
|
|
mChannel = nullptr;
|
|
mTelemetryClockStart = 0;
|
|
|
|
if (mFetchIndirectUpdatesTimer) {
|
|
mFetchIndirectUpdatesTimer->Cancel();
|
|
mFetchIndirectUpdatesTimer = nullptr;
|
|
}
|
|
if (mFetchNextRequestTimer) {
|
|
mFetchNextRequestTimer->Cancel();
|
|
mFetchNextRequestTimer = nullptr;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
MOZ_ASSERT_UNREACHABLE("A timer is fired from nowhere.");
|
|
return NS_OK;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
//// nsINamed
|
|
|
|
NS_IMETHODIMP
|
|
nsUrlClassifierStreamUpdater::GetName(nsACString &aName) {
|
|
aName.AssignLiteral("nsUrlClassifierStreamUpdater");
|
|
return NS_OK;
|
|
}
|