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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "LocalStorageCommon.h"
#include <cstdint>
#include "MainThreadUtils.h"
#include "mozilla/Assertions.h"
#include "mozilla/Atomics.h"
#include "mozilla/Logging.h"
#include "mozilla/OriginAttributes.h"
#include "mozilla/Preferences.h"
#include "mozilla/RefPtr.h"
#include "mozilla/StaticMutex.h"
#include "mozilla/StaticPrefs_dom.h"
#include "mozilla/dom/StorageUtils.h"
#include "mozilla/dom/quota/ResultExtensions.h"
#include "mozilla/ipc/PBackgroundSharedTypes.h"
#include "mozilla/net/MozURL.h"
#include "mozilla/net/WebSocketFrame.h"
#include "nsDebug.h"
#include "nsError.h"
#include "nsPrintfCString.h"
#include "nsString.h"
#include "nsStringFlags.h"
#include "nsXULAppAPI.h"
namespace mozilla::dom {
using namespace mozilla::net;
namespace {
StaticMutex gNextGenLocalStorageMutex;
Atomic<int32_t> gNextGenLocalStorageEnabled(-1);
LazyLogModule gLogger("LocalStorage");
} // namespace
const char16_t* kLocalStorageType = u"localStorage";
bool NextGenLocalStorageEnabled() {
if (XRE_IsParentProcess()) {
StaticMutexAutoLock lock(gNextGenLocalStorageMutex);
if (gNextGenLocalStorageEnabled == -1) {
// Ideally all this Mutex stuff would be replaced with just using
// an AtStartup StaticPref, but there are concerns about this causing
// deadlocks if this access needs to init the AtStartup cache.
bool enabled =
!StaticPrefs::
dom_storage_enable_unsupported_legacy_implementation_DoNotUseDirectly();
gNextGenLocalStorageEnabled = enabled ? 1 : 0;
}
return !!gNextGenLocalStorageEnabled;
}
return CachedNextGenLocalStorageEnabled();
}
void RecvInitNextGenLocalStorageEnabled(const bool aEnabled) {
MOZ_ASSERT(!XRE_IsParentProcess());
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(gNextGenLocalStorageEnabled == -1);
gNextGenLocalStorageEnabled = aEnabled ? 1 : 0;
}
bool CachedNextGenLocalStorageEnabled() {
MOZ_ASSERT(gNextGenLocalStorageEnabled != -1);
return !!gNextGenLocalStorageEnabled;
}
Result<std::pair<nsCString, nsCString>, nsresult> GenerateOriginKey2(
const mozilla::ipc::PrincipalInfo& aPrincipalInfo) {
OriginAttributes attrs;
nsCString spec;
switch (aPrincipalInfo.type()) {
case mozilla::ipc::PrincipalInfo::TNullPrincipalInfo: {
const auto& info = aPrincipalInfo.get_NullPrincipalInfo();
attrs = info.attrs();
spec = info.spec();
break;
}
case mozilla::ipc::PrincipalInfo::TContentPrincipalInfo: {
const auto& info = aPrincipalInfo.get_ContentPrincipalInfo();
attrs = info.attrs();
spec = info.spec();
break;
}
default: {
spec.SetIsVoid(true);
break;
}
}
if (spec.IsVoid()) {
return Err(NS_ERROR_UNEXPECTED);
}
nsCString originAttrSuffix;
attrs.CreateSuffix(originAttrSuffix);
RefPtr<MozURL> specURL;
QM_TRY(MOZ_TO_RESULT(MozURL::Init(getter_AddRefs(specURL), spec)));
nsCString host(specURL->Host());
uint32_t length = host.Length();
if (length > 0 && host.CharAt(0) == '[' && host.CharAt(length - 1) == ']') {
host = Substring(host, 1, length - 2);
}
nsCString domainOrigin(host);
if (domainOrigin.IsEmpty()) {
// For the file:/// protocol use the exact directory as domain.
if (specURL->Scheme().EqualsLiteral("file")) {
domainOrigin.Assign(specURL->Directory());
}
}
// Append reversed domain
nsAutoCString reverseDomain;
nsresult rv = StorageUtils::CreateReversedDomain(domainOrigin, reverseDomain);
if (NS_FAILED(rv)) {
return Err(rv);
}
nsCString originKey = reverseDomain;
// Append scheme
originKey.Append(':');
originKey.Append(specURL->Scheme());
// Append port if any
int32_t port = specURL->RealPort();
if (port != -1) {
originKey.AppendPrintf(":%d", port);
}
return std::make_pair(std::move(originAttrSuffix), std::move(originKey));
}
LogModule* GetLocalStorageLogger() { return gLogger; }
} // namespace mozilla::dom
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