8e7c45a1a2
Backed out changeset 3c8320baa230 (bug 1522579) Backed out changeset 0a288a3d85cd (bug 1522579) Backed out changeset ecfd27e7d150 (bug 1522579) Backed out changeset eda40fca0758 (bug 1522579) Backed out changeset 5c7aafa32a0a (bug 1522579) Backed out changeset a3c5a2c16411 (bug 1522579)
1044 lines
32 KiB
C++
1044 lines
32 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "ChannelWrapper.h"
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#include "jsapi.h"
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#include "xpcpublic.h"
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#include "mozilla/BasePrincipal.h"
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#include "mozilla/SystemPrincipal.h"
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#include "NSSErrorsService.h"
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#include "nsITransportSecurityInfo.h"
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#include "mozilla/AddonManagerWebAPI.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "mozilla/ErrorNames.h"
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#include "mozilla/ResultExtensions.h"
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#include "mozilla/Unused.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/Event.h"
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#include "mozilla/dom/TabParent.h"
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#include "nsIContentPolicy.h"
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#include "nsIHttpChannelInternal.h"
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#include "nsIHttpHeaderVisitor.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "nsILoadContext.h"
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#include "nsILoadGroup.h"
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#include "nsIProxiedChannel.h"
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#include "nsIProxyInfo.h"
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#include "nsITraceableChannel.h"
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#include "nsIWritablePropertyBag.h"
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#include "nsIWritablePropertyBag2.h"
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#include "nsNetUtil.h"
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#include "nsProxyRelease.h"
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#include "nsPrintfCString.h"
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using namespace mozilla::dom;
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using namespace JS;
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namespace mozilla {
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namespace extensions {
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#define CHANNELWRAPPER_PROP_KEY \
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NS_LITERAL_STRING("ChannelWrapper::CachedInstance")
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/*****************************************************************************
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* Lifetimes
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*****************************************************************************/
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namespace {
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class ChannelListHolder : public LinkedList<ChannelWrapper> {
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public:
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ChannelListHolder() : LinkedList<ChannelWrapper>() {}
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~ChannelListHolder();
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};
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} // anonymous namespace
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ChannelListHolder::~ChannelListHolder() {
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while (ChannelWrapper* wrapper = popFirst()) {
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wrapper->Die();
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}
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}
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static LinkedList<ChannelWrapper>& ChannelList() {
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static UniquePtr<ChannelListHolder> sChannelList;
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if (!sChannelList) {
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sChannelList.reset(new ChannelListHolder());
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ClearOnShutdown(&sChannelList, ShutdownPhase::Shutdown);
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}
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return *sChannelList;
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}
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NS_IMPL_CYCLE_COLLECTING_ADDREF(ChannelWrapper::ChannelWrapperStub)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(ChannelWrapper::ChannelWrapperStub)
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NS_IMPL_CYCLE_COLLECTION(ChannelWrapper::ChannelWrapperStub, mChannelWrapper)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ChannelWrapper::ChannelWrapperStub)
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NS_INTERFACE_MAP_ENTRY_TEAROFF(ChannelWrapper, mChannelWrapper)
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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/*****************************************************************************
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* Initialization
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*****************************************************************************/
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ChannelWrapper::ChannelWrapper(nsISupports* aParent, nsIChannel* aChannel)
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: ChannelHolder(aChannel), mParent(aParent) {
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mStub = new ChannelWrapperStub(this);
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ChannelList().insertBack(this);
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}
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ChannelWrapper::~ChannelWrapper() {
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if (LinkedListElement<ChannelWrapper>::isInList()) {
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LinkedListElement<ChannelWrapper>::remove();
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}
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}
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void ChannelWrapper::Die() {
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if (mStub) {
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mStub->mChannelWrapper = nullptr;
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}
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}
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/* static */
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already_AddRefed<ChannelWrapper> ChannelWrapper::Get(const GlobalObject& global,
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nsIChannel* channel) {
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RefPtr<ChannelWrapper> wrapper;
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nsCOMPtr<nsIWritablePropertyBag2> props = do_QueryInterface(channel);
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if (props) {
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Unused << props->GetPropertyAsInterface(CHANNELWRAPPER_PROP_KEY,
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NS_GET_IID(ChannelWrapper),
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getter_AddRefs(wrapper));
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if (wrapper) {
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// Assume cached attributes may have changed at this point.
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wrapper->ClearCachedAttributes();
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}
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}
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if (!wrapper) {
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wrapper = new ChannelWrapper(global.GetAsSupports(), channel);
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if (props) {
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Unused << props->SetPropertyAsInterface(CHANNELWRAPPER_PROP_KEY,
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wrapper->mStub);
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}
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}
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return wrapper.forget();
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}
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already_AddRefed<ChannelWrapper> ChannelWrapper::GetRegisteredChannel(
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const GlobalObject& global, uint64_t aChannelId,
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const WebExtensionPolicy& aAddon, nsITabParent* aTabParent) {
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nsIContentParent* contentParent = nullptr;
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if (TabParent* parent = static_cast<TabParent*>(aTabParent)) {
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contentParent = static_cast<nsIContentParent*>(parent->Manager());
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}
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auto& webreq = WebRequestService::GetSingleton();
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nsCOMPtr<nsITraceableChannel> channel =
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webreq.GetTraceableChannel(aChannelId, aAddon.Id(), contentParent);
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if (!channel) {
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return nullptr;
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}
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nsCOMPtr<nsIChannel> chan(do_QueryInterface(channel));
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return ChannelWrapper::Get(global, chan);
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}
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void ChannelWrapper::SetChannel(nsIChannel* aChannel) {
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detail::ChannelHolder::SetChannel(aChannel);
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ClearCachedAttributes();
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ChannelWrapper_Binding::ClearCachedFinalURIValue(this);
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ChannelWrapper_Binding::ClearCachedFinalURLValue(this);
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mFinalURLInfo.reset();
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ChannelWrapper_Binding::ClearCachedProxyInfoValue(this);
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}
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void ChannelWrapper::ClearCachedAttributes() {
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ChannelWrapper_Binding::ClearCachedRemoteAddressValue(this);
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ChannelWrapper_Binding::ClearCachedStatusCodeValue(this);
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ChannelWrapper_Binding::ClearCachedStatusLineValue(this);
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if (!mFiredErrorEvent) {
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ChannelWrapper_Binding::ClearCachedErrorStringValue(this);
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}
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}
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/*****************************************************************************
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* ...
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*****************************************************************************/
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void ChannelWrapper::Cancel(uint32_t aResult, ErrorResult& aRv) {
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nsresult rv = NS_ERROR_UNEXPECTED;
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if (nsCOMPtr<nsIChannel> chan = MaybeChannel()) {
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rv = chan->Cancel(nsresult(aResult));
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ErrorCheck();
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}
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if (NS_FAILED(rv)) {
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aRv.Throw(rv);
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}
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}
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void ChannelWrapper::RedirectTo(nsIURI* aURI, ErrorResult& aRv) {
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nsresult rv = NS_ERROR_UNEXPECTED;
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if (nsCOMPtr<nsIHttpChannel> chan = MaybeHttpChannel()) {
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rv = chan->RedirectTo(aURI);
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}
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if (NS_FAILED(rv)) {
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aRv.Throw(rv);
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}
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}
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void ChannelWrapper::UpgradeToSecure(ErrorResult& aRv) {
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nsresult rv = NS_ERROR_UNEXPECTED;
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if (nsCOMPtr<nsIHttpChannel> chan = MaybeHttpChannel()) {
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rv = chan->UpgradeToSecure();
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}
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if (NS_FAILED(rv)) {
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aRv.Throw(rv);
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}
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}
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void ChannelWrapper::SetSuspended(bool aSuspended, ErrorResult& aRv) {
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if (aSuspended != mSuspended) {
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nsresult rv = NS_ERROR_UNEXPECTED;
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if (nsCOMPtr<nsIChannel> chan = MaybeChannel()) {
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if (aSuspended) {
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rv = chan->Suspend();
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} else {
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rv = chan->Resume();
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}
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}
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if (NS_FAILED(rv)) {
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aRv.Throw(rv);
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} else {
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mSuspended = aSuspended;
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}
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}
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}
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void ChannelWrapper::GetContentType(nsCString& aContentType) const {
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if (nsCOMPtr<nsIHttpChannel> chan = MaybeHttpChannel()) {
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Unused << chan->GetContentType(aContentType);
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}
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}
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void ChannelWrapper::SetContentType(const nsACString& aContentType) {
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if (nsCOMPtr<nsIHttpChannel> chan = MaybeHttpChannel()) {
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Unused << chan->SetContentType(aContentType);
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}
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}
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/*****************************************************************************
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* Headers
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*****************************************************************************/
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namespace {
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class MOZ_STACK_CLASS HeaderVisitor final : public nsIHttpHeaderVisitor {
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public:
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NS_DECL_NSIHTTPHEADERVISITOR
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explicit HeaderVisitor(nsTArray<dom::MozHTTPHeader>& aHeaders)
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: mHeaders(aHeaders) {}
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HeaderVisitor(nsTArray<dom::MozHTTPHeader>& aHeaders,
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const nsCString& aContentTypeHdr)
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: mHeaders(aHeaders), mContentTypeHdr(aContentTypeHdr) {}
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void VisitRequestHeaders(nsIHttpChannel* aChannel, ErrorResult& aRv) {
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CheckResult(aChannel->VisitRequestHeaders(this), aRv);
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}
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void VisitResponseHeaders(nsIHttpChannel* aChannel, ErrorResult& aRv) {
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CheckResult(aChannel->VisitResponseHeaders(this), aRv);
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}
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NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr) override;
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// Stub AddRef/Release since this is a stack class.
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NS_IMETHOD_(MozExternalRefCountType) AddRef(void) override {
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return ++mRefCnt;
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}
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NS_IMETHOD_(MozExternalRefCountType) Release(void) override {
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return --mRefCnt;
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}
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virtual ~HeaderVisitor() { MOZ_DIAGNOSTIC_ASSERT(mRefCnt == 0); }
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private:
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bool CheckResult(nsresult aNSRv, ErrorResult& aRv) {
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if (NS_FAILED(aNSRv)) {
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aRv.Throw(aNSRv);
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return false;
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}
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return true;
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}
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nsTArray<dom::MozHTTPHeader>& mHeaders;
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nsCString mContentTypeHdr = VoidCString();
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nsrefcnt mRefCnt = 0;
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};
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NS_IMETHODIMP
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HeaderVisitor::VisitHeader(const nsACString& aHeader,
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const nsACString& aValue) {
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auto dict = mHeaders.AppendElement(fallible);
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if (!dict) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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dict->mName = aHeader;
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if (!mContentTypeHdr.IsVoid() &&
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aHeader.LowerCaseEqualsLiteral("content-type")) {
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dict->mValue = mContentTypeHdr;
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} else {
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dict->mValue = aValue;
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}
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return NS_OK;
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}
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NS_IMPL_QUERY_INTERFACE(HeaderVisitor, nsIHttpHeaderVisitor)
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} // anonymous namespace
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void ChannelWrapper::GetRequestHeaders(nsTArray<dom::MozHTTPHeader>& aRetVal,
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ErrorResult& aRv) const {
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if (nsCOMPtr<nsIHttpChannel> chan = MaybeHttpChannel()) {
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HeaderVisitor visitor(aRetVal);
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visitor.VisitRequestHeaders(chan, aRv);
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} else {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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}
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}
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void ChannelWrapper::GetResponseHeaders(nsTArray<dom::MozHTTPHeader>& aRetVal,
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ErrorResult& aRv) const {
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if (nsCOMPtr<nsIHttpChannel> chan = MaybeHttpChannel()) {
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HeaderVisitor visitor(aRetVal, mContentTypeHdr);
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visitor.VisitResponseHeaders(chan, aRv);
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} else {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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}
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}
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void ChannelWrapper::SetRequestHeader(const nsCString& aHeader,
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const nsCString& aValue, bool aMerge,
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ErrorResult& aRv) {
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nsresult rv = NS_ERROR_UNEXPECTED;
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if (nsCOMPtr<nsIHttpChannel> chan = MaybeHttpChannel()) {
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rv = chan->SetRequestHeader(aHeader, aValue, aMerge);
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}
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if (NS_FAILED(rv)) {
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aRv.Throw(rv);
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}
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}
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void ChannelWrapper::SetResponseHeader(const nsCString& aHeader,
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const nsCString& aValue, bool aMerge,
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ErrorResult& aRv) {
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nsresult rv = NS_ERROR_UNEXPECTED;
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if (nsCOMPtr<nsIHttpChannel> chan = MaybeHttpChannel()) {
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if (aHeader.LowerCaseEqualsLiteral("content-type")) {
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rv = chan->SetContentType(aValue);
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if (NS_SUCCEEDED(rv)) {
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mContentTypeHdr = aValue;
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}
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} else {
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rv = chan->SetResponseHeader(aHeader, aValue, aMerge);
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}
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}
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if (NS_FAILED(rv)) {
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aRv.Throw(rv);
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}
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}
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/*****************************************************************************
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* LoadInfo
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*****************************************************************************/
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already_AddRefed<nsILoadContext> ChannelWrapper::GetLoadContext() const {
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if (nsCOMPtr<nsIChannel> chan = MaybeChannel()) {
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nsCOMPtr<nsILoadContext> ctxt;
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NS_QueryNotificationCallbacks(chan, ctxt);
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return ctxt.forget();
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}
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return nullptr;
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}
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already_AddRefed<Element> ChannelWrapper::GetBrowserElement() const {
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if (nsCOMPtr<nsILoadContext> ctxt = GetLoadContext()) {
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RefPtr<Element> elem;
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if (NS_SUCCEEDED(ctxt->GetTopFrameElement(getter_AddRefs(elem)))) {
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return elem.forget();
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}
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}
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return nullptr;
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}
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static inline bool IsSystemPrincipal(nsIPrincipal* aPrincipal) {
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return BasePrincipal::Cast(aPrincipal)->Is<SystemPrincipal>();
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}
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bool ChannelWrapper::IsSystemLoad() const {
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if (nsCOMPtr<nsILoadInfo> loadInfo = GetLoadInfo()) {
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if (nsIPrincipal* prin = loadInfo->LoadingPrincipal()) {
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return IsSystemPrincipal(prin);
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}
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if (loadInfo->GetOuterWindowID() == loadInfo->GetTopOuterWindowID()) {
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return false;
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}
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if (nsIPrincipal* prin = loadInfo->PrincipalToInherit()) {
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return IsSystemPrincipal(prin);
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}
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if (nsIPrincipal* prin = loadInfo->TriggeringPrincipal()) {
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return IsSystemPrincipal(prin);
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}
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}
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return false;
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}
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bool ChannelWrapper::CanModify() const {
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if (WebExtensionPolicy::IsRestrictedURI(FinalURLInfo())) {
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return false;
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}
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if (nsCOMPtr<nsILoadInfo> loadInfo = GetLoadInfo()) {
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if (nsIPrincipal* prin = loadInfo->LoadingPrincipal()) {
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if (IsSystemPrincipal(prin)) {
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return false;
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}
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auto* docURI = DocumentURLInfo();
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if (docURI && WebExtensionPolicy::IsRestrictedURI(*docURI)) {
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return false;
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}
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}
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}
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return true;
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}
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already_AddRefed<nsIURI> ChannelWrapper::GetOriginURI() const {
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nsCOMPtr<nsIURI> uri;
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if (nsCOMPtr<nsILoadInfo> loadInfo = GetLoadInfo()) {
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if (nsIPrincipal* prin = loadInfo->TriggeringPrincipal()) {
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if (prin->GetIsCodebasePrincipal()) {
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Unused << prin->GetURI(getter_AddRefs(uri));
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}
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}
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}
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return uri.forget();
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}
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already_AddRefed<nsIURI> ChannelWrapper::GetDocumentURI() const {
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nsCOMPtr<nsIURI> uri;
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if (nsCOMPtr<nsILoadInfo> loadInfo = GetLoadInfo()) {
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if (nsIPrincipal* prin = loadInfo->LoadingPrincipal()) {
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if (prin->GetIsCodebasePrincipal()) {
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Unused << prin->GetURI(getter_AddRefs(uri));
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}
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}
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}
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return uri.forget();
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}
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void ChannelWrapper::GetOriginURL(nsCString& aRetVal) const {
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if (nsCOMPtr<nsIURI> uri = GetOriginURI()) {
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Unused << uri->GetSpec(aRetVal);
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}
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}
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void ChannelWrapper::GetDocumentURL(nsCString& aRetVal) const {
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if (nsCOMPtr<nsIURI> uri = GetDocumentURI()) {
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Unused << uri->GetSpec(aRetVal);
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}
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}
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const URLInfo& ChannelWrapper::FinalURLInfo() const {
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if (mFinalURLInfo.isNothing()) {
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ErrorResult rv;
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nsCOMPtr<nsIURI> uri = FinalURI();
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MOZ_ASSERT(uri);
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mFinalURLInfo.emplace(uri.get(), true);
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// If this is a WebSocket request, mangle the URL so that the scheme is
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// ws: or wss:, as appropriate.
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auto& url = mFinalURLInfo.ref();
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if (Type() == MozContentPolicyType::Websocket &&
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(url.Scheme() == nsGkAtoms::http || url.Scheme() == nsGkAtoms::https)) {
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nsAutoCString spec(url.CSpec());
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spec.Replace(0, 4, NS_LITERAL_CSTRING("ws"));
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Unused << NS_NewURI(getter_AddRefs(uri), spec);
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MOZ_RELEASE_ASSERT(uri);
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mFinalURLInfo.reset();
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mFinalURLInfo.emplace(uri.get(), true);
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}
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}
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return mFinalURLInfo.ref();
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}
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const URLInfo* ChannelWrapper::DocumentURLInfo() const {
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if (mDocumentURLInfo.isNothing()) {
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nsCOMPtr<nsIURI> uri = GetDocumentURI();
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if (!uri) {
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return nullptr;
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}
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mDocumentURLInfo.emplace(uri.get(), true);
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}
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return &mDocumentURLInfo.ref();
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}
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bool ChannelWrapper::Matches(
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const dom::MozRequestFilter& aFilter, const WebExtensionPolicy* aExtension,
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const dom::MozRequestMatchOptions& aOptions) const {
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if (!HaveChannel()) {
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return false;
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}
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|
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if (!aFilter.mTypes.IsNull() && !aFilter.mTypes.Value().Contains(Type())) {
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return false;
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}
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auto& urlInfo = FinalURLInfo();
|
|
if (aFilter.mUrls && !aFilter.mUrls->Matches(urlInfo)) {
|
|
return false;
|
|
}
|
|
|
|
if (aExtension) {
|
|
// Verify extension access to private requests
|
|
if (!aExtension->PrivateBrowsingAllowed()) {
|
|
nsCOMPtr<nsILoadInfo> loadInfo = GetLoadInfo();
|
|
if (loadInfo && loadInfo->GetOriginAttributes().mPrivateBrowsingId > 0) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool isProxy =
|
|
aOptions.mIsProxy && aExtension->HasPermission(nsGkAtoms::proxy);
|
|
// Proxies are allowed access to all urls, including restricted urls.
|
|
if (!aExtension->CanAccessURI(urlInfo, false, !isProxy)) {
|
|
return false;
|
|
}
|
|
|
|
// If this isn't the proxy phase of the request, check that the extension
|
|
// has origin permissions for origin that originated the request.
|
|
if (!isProxy) {
|
|
if (IsSystemLoad()) {
|
|
return false;
|
|
}
|
|
|
|
if (auto origin = DocumentURLInfo()) {
|
|
nsAutoCString baseURL;
|
|
aExtension->GetBaseURL(baseURL);
|
|
|
|
if (!StringBeginsWith(origin->CSpec(), baseURL) &&
|
|
!aExtension->CanAccessURI(*origin)) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
int64_t NormalizeWindowID(nsILoadInfo* aLoadInfo, uint64_t windowID) {
|
|
if (windowID == aLoadInfo->GetTopOuterWindowID()) {
|
|
return 0;
|
|
}
|
|
return windowID;
|
|
}
|
|
|
|
uint64_t ChannelWrapper::WindowId(nsILoadInfo* aLoadInfo) const {
|
|
auto frameID = aLoadInfo->GetFrameOuterWindowID();
|
|
if (!frameID) {
|
|
frameID = aLoadInfo->GetOuterWindowID();
|
|
}
|
|
return frameID;
|
|
}
|
|
|
|
int64_t ChannelWrapper::WindowId() const {
|
|
if (nsCOMPtr<nsILoadInfo> loadInfo = GetLoadInfo()) {
|
|
return NormalizeWindowID(loadInfo, WindowId(loadInfo));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int64_t ChannelWrapper::ParentWindowId() const {
|
|
if (nsCOMPtr<nsILoadInfo> loadInfo = GetLoadInfo()) {
|
|
if (WindowId(loadInfo) == loadInfo->GetTopOuterWindowID()) {
|
|
return -1;
|
|
}
|
|
|
|
uint64_t parentID;
|
|
if (loadInfo->GetFrameOuterWindowID()) {
|
|
parentID = loadInfo->GetOuterWindowID();
|
|
} else {
|
|
parentID = loadInfo->GetParentOuterWindowID();
|
|
}
|
|
return NormalizeWindowID(loadInfo, parentID);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
void ChannelWrapper::GetFrameAncestors(
|
|
dom::Nullable<nsTArray<dom::MozFrameAncestorInfo>>& aFrameAncestors,
|
|
ErrorResult& aRv) const {
|
|
nsCOMPtr<nsILoadInfo> loadInfo = GetLoadInfo();
|
|
if (!loadInfo || WindowId(loadInfo) == 0) {
|
|
aFrameAncestors.SetNull();
|
|
return;
|
|
}
|
|
|
|
nsresult rv = GetFrameAncestors(loadInfo, aFrameAncestors.SetValue());
|
|
if (NS_FAILED(rv)) {
|
|
aRv.Throw(rv);
|
|
}
|
|
}
|
|
|
|
nsresult ChannelWrapper::GetFrameAncestors(
|
|
nsILoadInfo* aLoadInfo,
|
|
nsTArray<dom::MozFrameAncestorInfo>& aFrameAncestors) const {
|
|
const nsTArray<nsCOMPtr<nsIPrincipal>>& ancestorPrincipals =
|
|
aLoadInfo->AncestorPrincipals();
|
|
const nsTArray<uint64_t>& ancestorOuterWindowIDs =
|
|
aLoadInfo->AncestorOuterWindowIDs();
|
|
uint32_t size = ancestorPrincipals.Length();
|
|
MOZ_DIAGNOSTIC_ASSERT(size == ancestorOuterWindowIDs.Length());
|
|
if (size != ancestorOuterWindowIDs.Length()) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
bool subFrame = aLoadInfo->GetExternalContentPolicyType() ==
|
|
nsIContentPolicy::TYPE_SUBDOCUMENT;
|
|
if (!aFrameAncestors.SetCapacity(subFrame ? size : size + 1, fallible)) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
// The immediate parent is always the first element in the ancestor arrays,
|
|
// however SUBDOCUMENTs do not have their immediate parent included, so we
|
|
// inject it here. This will force wrapper.parentWindowId ==
|
|
// wrapper.frameAncestors[0].frameId to always be true. All ather requests
|
|
// already match this way.
|
|
if (subFrame) {
|
|
auto ancestor = aFrameAncestors.AppendElement();
|
|
GetDocumentURL(ancestor->mUrl);
|
|
ancestor->mFrameId = ParentWindowId();
|
|
}
|
|
|
|
for (uint32_t i = 0; i < size; ++i) {
|
|
auto ancestor = aFrameAncestors.AppendElement();
|
|
nsCOMPtr<nsIURI> uri;
|
|
MOZ_TRY(ancestorPrincipals[i]->GetURI(getter_AddRefs(uri)));
|
|
if (!uri) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
MOZ_TRY(uri->GetSpec(ancestor->mUrl));
|
|
ancestor->mFrameId =
|
|
NormalizeWindowID(aLoadInfo, ancestorOuterWindowIDs[i]);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Response filtering
|
|
*****************************************************************************/
|
|
|
|
void ChannelWrapper::RegisterTraceableChannel(const WebExtensionPolicy& aAddon,
|
|
nsITabParent* aTabParent) {
|
|
// We can't attach new listeners after the response has started, so don't
|
|
// bother registering anything.
|
|
if (mResponseStarted || !CanModify()) {
|
|
return;
|
|
}
|
|
|
|
mAddonEntries.Put(aAddon.Id(), aTabParent);
|
|
if (!mChannelEntry) {
|
|
mChannelEntry = WebRequestService::GetSingleton().RegisterChannel(this);
|
|
CheckEventListeners();
|
|
}
|
|
}
|
|
|
|
already_AddRefed<nsITraceableChannel> ChannelWrapper::GetTraceableChannel(
|
|
nsAtom* aAddonId, dom::nsIContentParent* aContentParent) const {
|
|
nsCOMPtr<nsITabParent> tabParent;
|
|
if (mAddonEntries.Get(aAddonId, getter_AddRefs(tabParent))) {
|
|
nsIContentParent* contentParent = nullptr;
|
|
if (tabParent) {
|
|
contentParent = static_cast<nsIContentParent*>(
|
|
static_cast<TabParent*>(tabParent.get())->Manager());
|
|
}
|
|
|
|
if (contentParent == aContentParent) {
|
|
nsCOMPtr<nsITraceableChannel> chan = QueryChannel();
|
|
return chan.forget();
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* ...
|
|
*****************************************************************************/
|
|
|
|
MozContentPolicyType GetContentPolicyType(uint32_t aType) {
|
|
// Note: Please keep this function in sync with the external types in
|
|
// nsIContentPolicy.idl
|
|
switch (aType) {
|
|
case nsIContentPolicy::TYPE_DOCUMENT:
|
|
return MozContentPolicyType::Main_frame;
|
|
case nsIContentPolicy::TYPE_SUBDOCUMENT:
|
|
return MozContentPolicyType::Sub_frame;
|
|
case nsIContentPolicy::TYPE_STYLESHEET:
|
|
return MozContentPolicyType::Stylesheet;
|
|
case nsIContentPolicy::TYPE_SCRIPT:
|
|
return MozContentPolicyType::Script;
|
|
case nsIContentPolicy::TYPE_IMAGE:
|
|
return MozContentPolicyType::Image;
|
|
case nsIContentPolicy::TYPE_OBJECT:
|
|
return MozContentPolicyType::Object;
|
|
case nsIContentPolicy::TYPE_OBJECT_SUBREQUEST:
|
|
return MozContentPolicyType::Object_subrequest;
|
|
case nsIContentPolicy::TYPE_XMLHTTPREQUEST:
|
|
return MozContentPolicyType::Xmlhttprequest;
|
|
// TYPE_FETCH returns xmlhttprequest for cross-browser compatibility.
|
|
case nsIContentPolicy::TYPE_FETCH:
|
|
return MozContentPolicyType::Xmlhttprequest;
|
|
case nsIContentPolicy::TYPE_XBL:
|
|
return MozContentPolicyType::Xbl;
|
|
case nsIContentPolicy::TYPE_XSLT:
|
|
return MozContentPolicyType::Xslt;
|
|
case nsIContentPolicy::TYPE_PING:
|
|
return MozContentPolicyType::Ping;
|
|
case nsIContentPolicy::TYPE_BEACON:
|
|
return MozContentPolicyType::Beacon;
|
|
case nsIContentPolicy::TYPE_DTD:
|
|
return MozContentPolicyType::Xml_dtd;
|
|
case nsIContentPolicy::TYPE_FONT:
|
|
return MozContentPolicyType::Font;
|
|
case nsIContentPolicy::TYPE_MEDIA:
|
|
return MozContentPolicyType::Media;
|
|
case nsIContentPolicy::TYPE_WEBSOCKET:
|
|
return MozContentPolicyType::Websocket;
|
|
case nsIContentPolicy::TYPE_CSP_REPORT:
|
|
return MozContentPolicyType::Csp_report;
|
|
case nsIContentPolicy::TYPE_IMAGESET:
|
|
return MozContentPolicyType::Imageset;
|
|
case nsIContentPolicy::TYPE_WEB_MANIFEST:
|
|
return MozContentPolicyType::Web_manifest;
|
|
case nsIContentPolicy::TYPE_SPECULATIVE:
|
|
return MozContentPolicyType::Speculative;
|
|
default:
|
|
return MozContentPolicyType::Other;
|
|
}
|
|
}
|
|
|
|
MozContentPolicyType ChannelWrapper::Type() const {
|
|
if (nsCOMPtr<nsILoadInfo> loadInfo = GetLoadInfo()) {
|
|
return GetContentPolicyType(loadInfo->GetExternalContentPolicyType());
|
|
}
|
|
return MozContentPolicyType::Other;
|
|
}
|
|
|
|
void ChannelWrapper::GetMethod(nsCString& aMethod) const {
|
|
if (nsCOMPtr<nsIHttpChannel> chan = MaybeHttpChannel()) {
|
|
Unused << chan->GetRequestMethod(aMethod);
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* ...
|
|
*****************************************************************************/
|
|
|
|
uint32_t ChannelWrapper::StatusCode() const {
|
|
uint32_t result = 0;
|
|
if (nsCOMPtr<nsIHttpChannel> chan = MaybeHttpChannel()) {
|
|
Unused << chan->GetResponseStatus(&result);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void ChannelWrapper::GetStatusLine(nsCString& aRetVal) const {
|
|
nsCOMPtr<nsIHttpChannel> chan = MaybeHttpChannel();
|
|
nsCOMPtr<nsIHttpChannelInternal> internal = do_QueryInterface(chan);
|
|
|
|
if (internal) {
|
|
nsAutoCString statusText;
|
|
uint32_t major, minor, status;
|
|
if (NS_FAILED(chan->GetResponseStatus(&status)) ||
|
|
NS_FAILED(chan->GetResponseStatusText(statusText)) ||
|
|
NS_FAILED(internal->GetResponseVersion(&major, &minor))) {
|
|
return;
|
|
}
|
|
|
|
aRetVal = nsPrintfCString("HTTP/%u.%u %u %s", major, minor, status,
|
|
statusText.get());
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* ...
|
|
*****************************************************************************/
|
|
|
|
already_AddRefed<nsIURI> ChannelWrapper::FinalURI() const {
|
|
nsCOMPtr<nsIURI> uri;
|
|
if (nsCOMPtr<nsIChannel> chan = MaybeChannel()) {
|
|
NS_GetFinalChannelURI(chan, getter_AddRefs(uri));
|
|
}
|
|
return uri.forget();
|
|
}
|
|
|
|
void ChannelWrapper::GetFinalURL(nsString& aRetVal) const {
|
|
if (HaveChannel()) {
|
|
aRetVal = FinalURLInfo().Spec();
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* ...
|
|
*****************************************************************************/
|
|
|
|
nsresult FillProxyInfo(MozProxyInfo& aDict, nsIProxyInfo* aProxyInfo) {
|
|
MOZ_TRY(aProxyInfo->GetHost(aDict.mHost));
|
|
MOZ_TRY(aProxyInfo->GetPort(&aDict.mPort));
|
|
MOZ_TRY(aProxyInfo->GetType(aDict.mType));
|
|
MOZ_TRY(aProxyInfo->GetUsername(aDict.mUsername));
|
|
MOZ_TRY(aProxyInfo->GetFailoverTimeout(&aDict.mFailoverTimeout.Construct()));
|
|
|
|
uint32_t flags;
|
|
MOZ_TRY(aProxyInfo->GetFlags(&flags));
|
|
aDict.mProxyDNS = flags & nsIProxyInfo::TRANSPARENT_PROXY_RESOLVES_HOST;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void ChannelWrapper::GetProxyInfo(dom::Nullable<MozProxyInfo>& aRetVal,
|
|
ErrorResult& aRv) const {
|
|
nsCOMPtr<nsIProxyInfo> proxyInfo;
|
|
if (nsCOMPtr<nsIProxiedChannel> proxied = QueryChannel()) {
|
|
Unused << proxied->GetProxyInfo(getter_AddRefs(proxyInfo));
|
|
}
|
|
if (proxyInfo) {
|
|
MozProxyInfo result;
|
|
|
|
nsresult rv = FillProxyInfo(result, proxyInfo);
|
|
if (NS_FAILED(rv)) {
|
|
aRv.Throw(rv);
|
|
} else {
|
|
aRetVal.SetValue(std::move(result));
|
|
}
|
|
}
|
|
}
|
|
|
|
void ChannelWrapper::GetRemoteAddress(nsCString& aRetVal) const {
|
|
aRetVal.SetIsVoid(true);
|
|
if (nsCOMPtr<nsIHttpChannelInternal> internal = QueryChannel()) {
|
|
Unused << internal->GetRemoteAddress(aRetVal);
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Error handling
|
|
*****************************************************************************/
|
|
|
|
void ChannelWrapper::GetErrorString(nsString& aRetVal) const {
|
|
if (nsCOMPtr<nsIChannel> chan = MaybeChannel()) {
|
|
nsCOMPtr<nsISupports> securityInfo;
|
|
Unused << chan->GetSecurityInfo(getter_AddRefs(securityInfo));
|
|
if (nsCOMPtr<nsITransportSecurityInfo> tsi =
|
|
do_QueryInterface(securityInfo)) {
|
|
int32_t errorCode = 0;
|
|
tsi->GetErrorCode(&errorCode);
|
|
if (psm::IsNSSErrorCode(errorCode)) {
|
|
nsCOMPtr<nsINSSErrorsService> nsserr =
|
|
do_GetService(NS_NSS_ERRORS_SERVICE_CONTRACTID);
|
|
|
|
nsresult rv = psm::GetXPCOMFromNSSError(errorCode);
|
|
if (nsserr && NS_SUCCEEDED(nsserr->GetErrorMessage(rv, aRetVal))) {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult status;
|
|
if (NS_SUCCEEDED(chan->GetStatus(&status)) && NS_FAILED(status)) {
|
|
nsAutoCString name;
|
|
GetErrorName(status, name);
|
|
AppendUTF8toUTF16(name, aRetVal);
|
|
} else {
|
|
aRetVal.SetIsVoid(true);
|
|
}
|
|
} else {
|
|
aRetVal.AssignLiteral("NS_ERROR_UNEXPECTED");
|
|
}
|
|
}
|
|
|
|
void ChannelWrapper::ErrorCheck() {
|
|
if (!mFiredErrorEvent) {
|
|
nsAutoString error;
|
|
GetErrorString(error);
|
|
if (error.Length()) {
|
|
mChannelEntry = nullptr;
|
|
mFiredErrorEvent = true;
|
|
ChannelWrapper_Binding::ClearCachedErrorStringValue(this);
|
|
FireEvent(NS_LITERAL_STRING("error"));
|
|
}
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* nsIWebRequestListener
|
|
*****************************************************************************/
|
|
|
|
NS_IMPL_ISUPPORTS(ChannelWrapper::RequestListener, nsIStreamListener,
|
|
nsIRequestObserver, nsIThreadRetargetableStreamListener)
|
|
|
|
ChannelWrapper::RequestListener::~RequestListener() {
|
|
NS_ReleaseOnMainThreadSystemGroup("RequestListener::mChannelWrapper",
|
|
mChannelWrapper.forget());
|
|
}
|
|
|
|
nsresult ChannelWrapper::RequestListener::Init() {
|
|
if (nsCOMPtr<nsITraceableChannel> chan = mChannelWrapper->QueryChannel()) {
|
|
return chan->SetNewListener(this, getter_AddRefs(mOrigStreamListener));
|
|
}
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ChannelWrapper::RequestListener::OnStartRequest(nsIRequest* request,
|
|
nsISupports* aCtxt) {
|
|
MOZ_ASSERT(mOrigStreamListener, "Should have mOrigStreamListener");
|
|
|
|
mChannelWrapper->mChannelEntry = nullptr;
|
|
mChannelWrapper->mResponseStarted = true;
|
|
mChannelWrapper->ErrorCheck();
|
|
mChannelWrapper->FireEvent(NS_LITERAL_STRING("start"));
|
|
|
|
return mOrigStreamListener->OnStartRequest(request, aCtxt);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ChannelWrapper::RequestListener::OnStopRequest(nsIRequest* request,
|
|
nsISupports* aCtxt,
|
|
nsresult aStatus) {
|
|
MOZ_ASSERT(mOrigStreamListener, "Should have mOrigStreamListener");
|
|
|
|
mChannelWrapper->mChannelEntry = nullptr;
|
|
mChannelWrapper->ErrorCheck();
|
|
mChannelWrapper->FireEvent(NS_LITERAL_STRING("stop"));
|
|
|
|
return mOrigStreamListener->OnStopRequest(request, aCtxt, aStatus);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ChannelWrapper::RequestListener::OnDataAvailable(nsIRequest* request,
|
|
nsISupports* aCtxt,
|
|
nsIInputStream* inStr,
|
|
uint64_t sourceOffset,
|
|
uint32_t count) {
|
|
MOZ_ASSERT(mOrigStreamListener, "Should have mOrigStreamListener");
|
|
return mOrigStreamListener->OnDataAvailable(request, aCtxt, inStr,
|
|
sourceOffset, count);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ChannelWrapper::RequestListener::CheckListenerChain() {
|
|
MOZ_ASSERT(NS_IsMainThread(), "Should be on main thread!");
|
|
nsresult rv;
|
|
nsCOMPtr<nsIThreadRetargetableStreamListener> retargetableListener =
|
|
do_QueryInterface(mOrigStreamListener, &rv);
|
|
if (retargetableListener) {
|
|
return retargetableListener->CheckListenerChain();
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Event dispatching
|
|
*****************************************************************************/
|
|
|
|
void ChannelWrapper::FireEvent(const nsAString& aType) {
|
|
EventInit init;
|
|
init.mBubbles = false;
|
|
init.mCancelable = false;
|
|
|
|
RefPtr<Event> event = Event::Constructor(this, aType, init);
|
|
event->SetTrusted(true);
|
|
|
|
DispatchEvent(*event);
|
|
}
|
|
|
|
void ChannelWrapper::CheckEventListeners() {
|
|
if (!mAddedStreamListener &&
|
|
(HasListenersFor(nsGkAtoms::onerror) ||
|
|
HasListenersFor(nsGkAtoms::onstart) ||
|
|
HasListenersFor(nsGkAtoms::onstop) || mChannelEntry)) {
|
|
auto listener = MakeRefPtr<RequestListener>(this);
|
|
if (!NS_WARN_IF(NS_FAILED(listener->Init()))) {
|
|
mAddedStreamListener = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ChannelWrapper::EventListenerAdded(nsAtom* aType) {
|
|
CheckEventListeners();
|
|
}
|
|
|
|
void ChannelWrapper::EventListenerRemoved(nsAtom* aType) {
|
|
CheckEventListeners();
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Glue
|
|
*****************************************************************************/
|
|
|
|
JSObject* ChannelWrapper::WrapObject(JSContext* aCx, HandleObject aGivenProto) {
|
|
return ChannelWrapper_Binding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(ChannelWrapper)
|
|
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ChannelWrapper)
|
|
NS_INTERFACE_MAP_ENTRY(ChannelWrapper)
|
|
NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(ChannelWrapper,
|
|
DOMEventTargetHelper)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mParent)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mStub)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(ChannelWrapper,
|
|
DOMEventTargetHelper)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mParent)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mStub)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(ChannelWrapper,
|
|
DOMEventTargetHelper)
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_END
|
|
|
|
NS_IMPL_ADDREF_INHERITED(ChannelWrapper, DOMEventTargetHelper)
|
|
NS_IMPL_RELEASE_INHERITED(ChannelWrapper, DOMEventTargetHelper)
|
|
|
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} // namespace extensions
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} // namespace mozilla
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