132 lines
3.8 KiB
C++
132 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "ContentBlockingTelemetryService.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "mozilla/PermissionManager.h"
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#include "mozilla/Services.h"
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#include "mozilla/StaticPtr.h"
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#include "mozilla/glean/AntitrackingMetrics.h"
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#include "AntiTrackingLog.h"
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#include "prtime.h"
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#include "nsIObserverService.h"
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#include "nsIPermission.h"
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#include "nsTArray.h"
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using namespace mozilla;
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NS_IMPL_ISUPPORTS(ContentBlockingTelemetryService, nsIObserver)
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static StaticRefPtr<ContentBlockingTelemetryService>
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sContentBlockingTelemetryService;
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/* static */
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already_AddRefed<ContentBlockingTelemetryService>
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ContentBlockingTelemetryService::GetSingleton() {
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if (!sContentBlockingTelemetryService) {
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sContentBlockingTelemetryService = new ContentBlockingTelemetryService();
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ClearOnShutdown(&sContentBlockingTelemetryService);
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}
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RefPtr<ContentBlockingTelemetryService> service =
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sContentBlockingTelemetryService;
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return service.forget();
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}
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NS_IMETHODIMP
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ContentBlockingTelemetryService::Observe(nsISupports* aSubject,
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const char* aTopic,
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const char16_t* aData) {
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if (strcmp(aTopic, "idle-daily") == 0) {
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ReportStoragePermissionExpire();
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return NS_OK;
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}
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return NS_OK;
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}
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void ContentBlockingTelemetryService::ReportStoragePermissionExpire() {
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MOZ_ASSERT(XRE_IsParentProcess());
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LOG(("Start to report storage permission expire."));
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RefPtr<PermissionManager> permManager = PermissionManager::GetInstance();
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if (NS_WARN_IF(!permManager)) {
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LOG(("Permission manager is null, bailing out early"));
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return;
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}
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nsTArray<RefPtr<nsIPermission>> permissions;
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nsresult rv =
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permManager->GetAllWithTypePrefix("3rdPartyStorage"_ns, permissions);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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LOG(("Fail to get all storage access permissions."));
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return;
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}
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nsTArray<RefPtr<nsIPermission>> framePermissions;
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rv = permManager->GetAllWithTypePrefix("3rdPartyFrameStorage"_ns,
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framePermissions);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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LOG(("Fail to get all frame storage access permissions."));
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return;
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}
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if (!permissions.AppendElements(framePermissions, fallible)) {
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LOG(("Fail to combine all storage access permissions."));
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return;
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}
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nsTArray<uint64_t> records;
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for (const auto& permission : permissions) {
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if (!permission) {
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LOG(("Couldn't get the permission for unknown reasons"));
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continue;
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}
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uint32_t expireType;
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rv = permission->GetExpireType(&expireType);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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LOG(("Couldn't get the expire type."));
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continue;
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}
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// We only care about permissions that have a EXPIRE_TIME as the expire
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// type.
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if (expireType != nsIPermissionManager::EXPIRE_TIME) {
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continue;
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}
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// Collect how much longer the storage permission will be valid for, in
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// days.
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int64_t expirationTime = 0;
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rv = permission->GetExpireTime(&expirationTime);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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LOG(("Couldn't get the expire time."));
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continue;
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}
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expirationTime -= (PR_Now() / PR_USEC_PER_MSEC);
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// Skip expired permissions.
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if (expirationTime <= 0) {
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continue;
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}
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int64_t expireDays = expirationTime / 1000 / 60 / 60 / 24;
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records.AppendElement(expireDays);
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}
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if (!records.IsEmpty()) {
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glean::contentblocking::storage_access_remaining_days.AccumulateSamples(
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records);
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}
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}
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