mozilla
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gecko-dev
зеркало из https://github.com/mozilla/gecko-dev.git
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gecko-dev/ipc/glue/BackgroundUtils.cpp

340 строки
11 KiB
C++
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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 "BackgroundUtils.h"
#include "MainThreadUtils.h"
#include "mozilla/Assertions.h"
#include "mozilla/BasePrincipal.h"
#include "mozilla/ipc/PBackgroundSharedTypes.h"
#include "mozilla/net/NeckoChannelParams.h"
#include "nsPrincipal.h"
#include "nsIScriptSecurityManager.h"
#include "nsIURI.h"
#include "nsNetUtil.h"
#include "mozilla/LoadInfo.h"
#include "nsNullPrincipal.h"
#include "nsServiceManagerUtils.h"
#include "nsString.h"
#include "nsTArray.h"
namespace mozilla {
namespace net {
class OptionalLoadInfoArgs;
}
using mozilla::BasePrincipal;
using namespace mozilla::net;
namespace ipc {
already_AddRefed<nsIPrincipal>
PrincipalInfoToPrincipal(const PrincipalInfo& aPrincipalInfo,
nsresult* aOptionalResult)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aPrincipalInfo.type() != PrincipalInfo::T__None);
nsresult stackResult;
nsresult& rv = aOptionalResult ? *aOptionalResult : stackResult;
nsCOMPtr<nsIScriptSecurityManager> secMan =
do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
nsCOMPtr<nsIPrincipal> principal;
switch (aPrincipalInfo.type()) {
case PrincipalInfo::TSystemPrincipalInfo: {
rv = secMan->GetSystemPrincipal(getter_AddRefs(principal));
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
return principal.forget();
}
case PrincipalInfo::TNullPrincipalInfo: {
const NullPrincipalInfo& info =
aPrincipalInfo.get_NullPrincipalInfo();
principal = nsNullPrincipal::Create(info.attrs());
return principal.forget();
}
case PrincipalInfo::TContentPrincipalInfo: {
const ContentPrincipalInfo& info =
aPrincipalInfo.get_ContentPrincipalInfo();
nsCOMPtr<nsIURI> uri;
rv = NS_NewURI(getter_AddRefs(uri), info.spec());
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
PrincipalOriginAttributes attrs;
if (info.attrs().mAppId != nsIScriptSecurityManager::UNKNOWN_APP_ID) {
attrs = info.attrs();
}
principal = BasePrincipal::CreateCodebasePrincipal(uri, attrs);
rv = principal ? NS_OK : NS_ERROR_FAILURE;
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
return principal.forget();
}
case PrincipalInfo::TExpandedPrincipalInfo: {
const ExpandedPrincipalInfo& info = aPrincipalInfo.get_ExpandedPrincipalInfo();
nsTArray< nsCOMPtr<nsIPrincipal> > whitelist;
nsCOMPtr<nsIPrincipal> wlPrincipal;
for (uint32_t i = 0; i < info.whitelist().Length(); i++) {
wlPrincipal = PrincipalInfoToPrincipal(info.whitelist()[i], &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
// append that principal to the whitelist
whitelist.AppendElement(wlPrincipal);
}
RefPtr<nsExpandedPrincipal> expandedPrincipal = new nsExpandedPrincipal(whitelist);
if (!expandedPrincipal) {
NS_WARNING("could not instantiate expanded principal");
return nullptr;
}
principal = expandedPrincipal;
return principal.forget();
}
default:
MOZ_CRASH("Unknown PrincipalInfo type!");
}
MOZ_CRASH("Should never get here!");
}
nsresult
PrincipalToPrincipalInfo(nsIPrincipal* aPrincipal,
PrincipalInfo* aPrincipalInfo)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aPrincipal);
MOZ_ASSERT(aPrincipalInfo);
bool isNullPrin;
nsresult rv = aPrincipal->GetIsNullPrincipal(&isNullPrin);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (isNullPrin) {
*aPrincipalInfo = NullPrincipalInfo(BasePrincipal::Cast(aPrincipal)->OriginAttributesRef());
return NS_OK;
}
nsCOMPtr<nsIScriptSecurityManager> secMan =
do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool isSystemPrincipal;
rv = secMan->IsSystemPrincipal(aPrincipal, &isSystemPrincipal);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (isSystemPrincipal) {
*aPrincipalInfo = SystemPrincipalInfo();
return NS_OK;
}
// might be an expanded principal
nsCOMPtr<nsIExpandedPrincipal> expanded =
do_QueryInterface(aPrincipal);
if (expanded) {
nsTArray<PrincipalInfo> whitelistInfo;
PrincipalInfo info;
nsTArray< nsCOMPtr<nsIPrincipal> >* whitelist;
MOZ_ALWAYS_SUCCEEDS(expanded->GetWhiteList(&whitelist));
for (uint32_t i = 0; i < whitelist->Length(); i++) {
rv = PrincipalToPrincipalInfo((*whitelist)[i], &info);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// append that spec to the whitelist
whitelistInfo.AppendElement(info);
}
*aPrincipalInfo = ExpandedPrincipalInfo(Move(whitelistInfo));
return NS_OK;
}
// must be a content principal
nsCOMPtr<nsIURI> uri;
rv = aPrincipal->GetURI(getter_AddRefs(uri));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (NS_WARN_IF(!uri)) {
return NS_ERROR_FAILURE;
}
nsCString spec;
rv = uri->GetSpec(spec);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
*aPrincipalInfo = ContentPrincipalInfo(BasePrincipal::Cast(aPrincipal)->OriginAttributesRef(),
spec);
return NS_OK;
}
nsresult
LoadInfoToLoadInfoArgs(nsILoadInfo *aLoadInfo,
OptionalLoadInfoArgs* aOptionalLoadInfoArgs)
{
if (!aLoadInfo) {
// if there is no loadInfo, then there is nothing to serialize
*aOptionalLoadInfoArgs = void_t();
return NS_OK;
}
nsresult rv = NS_OK;
OptionalPrincipalInfo loadingPrincipalInfo = mozilla::void_t();
if (aLoadInfo->LoadingPrincipal()) {
PrincipalInfo loadingPrincipalInfoTemp;
rv = PrincipalToPrincipalInfo(aLoadInfo->LoadingPrincipal(),
&loadingPrincipalInfoTemp);
NS_ENSURE_SUCCESS(rv, rv);
loadingPrincipalInfo = loadingPrincipalInfoTemp;
}
PrincipalInfo triggeringPrincipalInfo;
rv = PrincipalToPrincipalInfo(aLoadInfo->TriggeringPrincipal(),
&triggeringPrincipalInfo);
nsTArray<PrincipalInfo> redirectChainIncludingInternalRedirects;
for (const nsCOMPtr<nsIPrincipal>& principal : aLoadInfo->RedirectChainIncludingInternalRedirects()) {
rv = PrincipalToPrincipalInfo(principal, redirectChainIncludingInternalRedirects.AppendElement());
NS_ENSURE_SUCCESS(rv, rv);
}
nsTArray<PrincipalInfo> redirectChain;
for (const nsCOMPtr<nsIPrincipal>& principal : aLoadInfo->RedirectChain()) {
rv = PrincipalToPrincipalInfo(principal, redirectChain.AppendElement());
NS_ENSURE_SUCCESS(rv, rv);
}
*aOptionalLoadInfoArgs =
LoadInfoArgs(
loadingPrincipalInfo,
triggeringPrincipalInfo,
aLoadInfo->GetSecurityFlags(),
aLoadInfo->InternalContentPolicyType(),
static_cast<uint32_t>(aLoadInfo->GetTainting()),
aLoadInfo->GetUpgradeInsecureRequests(),
aLoadInfo->GetVerifySignedContent(),
aLoadInfo->GetEnforceSRI(),
aLoadInfo->GetInnerWindowID(),
aLoadInfo->GetOuterWindowID(),
aLoadInfo->GetParentOuterWindowID(),
aLoadInfo->GetFrameOuterWindowID(),
aLoadInfo->GetEnforceSecurity(),
aLoadInfo->GetInitialSecurityCheckDone(),
aLoadInfo->GetIsInThirdPartyContext(),
aLoadInfo->GetOriginAttributes(),
redirectChainIncludingInternalRedirects,
redirectChain,
aLoadInfo->CorsUnsafeHeaders(),
aLoadInfo->GetForcePreflight(),
aLoadInfo->GetIsPreflight());
return NS_OK;
}
nsresult
LoadInfoArgsToLoadInfo(const OptionalLoadInfoArgs& aOptionalLoadInfoArgs,
nsILoadInfo** outLoadInfo)
{
if (aOptionalLoadInfoArgs.type() == OptionalLoadInfoArgs::Tvoid_t) {
*outLoadInfo = nullptr;
return NS_OK;
}
const LoadInfoArgs& loadInfoArgs =
aOptionalLoadInfoArgs.get_LoadInfoArgs();
nsresult rv = NS_OK;
nsCOMPtr<nsIPrincipal> loadingPrincipal;
if (loadInfoArgs.requestingPrincipalInfo().type() != OptionalPrincipalInfo::Tvoid_t) {
loadingPrincipal = PrincipalInfoToPrincipal(loadInfoArgs.requestingPrincipalInfo(), &rv);
NS_ENSURE_SUCCESS(rv, rv);
}
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIPrincipal> triggeringPrincipal =
PrincipalInfoToPrincipal(loadInfoArgs.triggeringPrincipalInfo(), &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsTArray<nsCOMPtr<nsIPrincipal>> redirectChainIncludingInternalRedirects;
for (const PrincipalInfo& principalInfo : loadInfoArgs.redirectChainIncludingInternalRedirects()) {
nsCOMPtr<nsIPrincipal> redirectedPrincipal =
PrincipalInfoToPrincipal(principalInfo, &rv);
NS_ENSURE_SUCCESS(rv, rv);
redirectChainIncludingInternalRedirects.AppendElement(redirectedPrincipal.forget());
}
nsTArray<nsCOMPtr<nsIPrincipal>> redirectChain;
for (const PrincipalInfo& principalInfo : loadInfoArgs.redirectChain()) {
nsCOMPtr<nsIPrincipal> redirectedPrincipal =
PrincipalInfoToPrincipal(principalInfo, &rv);
NS_ENSURE_SUCCESS(rv, rv);
redirectChain.AppendElement(redirectedPrincipal.forget());
}
nsCOMPtr<nsILoadInfo> loadInfo =
new mozilla::LoadInfo(loadingPrincipal,
triggeringPrincipal,
loadInfoArgs.securityFlags(),
loadInfoArgs.contentPolicyType(),
static_cast<LoadTainting>(loadInfoArgs.tainting()),
loadInfoArgs.upgradeInsecureRequests(),
loadInfoArgs.verifySignedContent(),
loadInfoArgs.enforceSRI(),
loadInfoArgs.innerWindowID(),
loadInfoArgs.outerWindowID(),
loadInfoArgs.parentOuterWindowID(),
loadInfoArgs.frameOuterWindowID(),
loadInfoArgs.enforceSecurity(),
loadInfoArgs.initialSecurityCheckDone(),
loadInfoArgs.isInThirdPartyContext(),
loadInfoArgs.originAttributes(),
redirectChainIncludingInternalRedirects,
redirectChain,
loadInfoArgs.corsUnsafeHeaders(),
loadInfoArgs.forcePreflight(),
loadInfoArgs.isPreflight());
loadInfo.forget(outLoadInfo);
return NS_OK;
}
} // namespace ipc
} // namespace mozilla
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