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Bug 1774854, part 2 - Create helper function for the forward-declared storage access handoff permission, r=timhuang

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Differential Revision: https://phabricator.services.mozilla.com/D149661
This commit is contained in:
Benjamin VanderSloot 2022-07-08 12:36:43 +00:00
parent 5b9e145ce3
commit e175bc03d6
3 changed files with 32 additions and 2 deletions
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4
extensions/permissions/PermissionManager.cpp
View File

@ -169,8 +169,8 @@ bool IsOAForceStripPermission(const nsACString& aType) {
// Array of permission prefixes which should be isolated only by site.
// These site-scoped permissions are stored under their site's principal.
// GetAllForPrincipal also needs to look for these especially.
static constexpr std::array<nsLiteralCString, 1> kSiteScopedPermissions = {
{"3rdPartyStorage^"_ns}};
static constexpr std::array<nsLiteralCString, 2> kSiteScopedPermissions = {
{"3rdPartyStorage^"_ns, "AllowStorageAccessRequest^"_ns}};
bool IsSiteScopedPermission(const nsACString& aType) {
if (aType.IsEmpty()) {

23
toolkit/components/antitracking/AntiTrackingUtils.cpp
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@ -19,6 +19,7 @@
#include "mozilla/net/NeckoChannelParams.h"
#include "mozilla/PermissionManager.h"
#include "mozIThirdPartyUtil.h"
#include "nsEffectiveTLDService.h"
#include "nsGlobalWindowInner.h"
#include "nsIChannel.h"
#include "nsIHttpChannel.h"
@ -122,6 +123,28 @@ bool AntiTrackingUtils::CreateStoragePermissionKey(nsIPrincipal* aPrincipal,
return true;
}
// static
bool AntiTrackingUtils::CreateStorageRequestPermissionKey(
nsIURI* aURI, nsACString& aPermissionKey) {
MOZ_ASSERT(aPermissionKey.IsEmpty());
RefPtr<nsEffectiveTLDService> eTLDService =
nsEffectiveTLDService::GetInstance();
if (!eTLDService) {
return false;
}
nsCString site;
nsresult rv = eTLDService->GetSite(aURI, site);
if (NS_FAILED(rv)) {
return false;
}
static const nsLiteralCString prefix =
nsLiteralCString("AllowStorageAccessRequest^");
aPermissionKey.SetCapacity(prefix.Length() + site.Length());
aPermissionKey.Append(prefix);
aPermissionKey.Append(site);
return true;
}
// static
bool AntiTrackingUtils::IsStorageAccessPermission(nsIPermission* aPermission,
nsIPrincipal* aPrincipal) {

7
toolkit/components/antitracking/AntiTrackingUtils.h
View File

@ -49,6 +49,13 @@ class AntiTrackingUtils final {
static bool CreateStoragePermissionKey(nsIPrincipal* aPrincipal,
nsACString& aKey);
// Given and embedded URI, returns the permission for allowing storage access
// requests from that URI's site. This permission is site-scoped in two ways:
// the principal it is stored under and the suffix built from aURI are both
// the Site rather than Origin.
static bool CreateStorageRequestPermissionKey(nsIURI* aURI,
nsACString& aPermissionKey);
// Returns true if the permission passed in is a storage access permission
// for the passed in principal argument.
static bool IsStorageAccessPermission(nsIPermission* aPermission,