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tenfourfox/netwerk/protocol/wyciwyg/WyciwygChannelChild.cpp
Cameron Kaiser c9b2922b70 hello FPR
2017-04-19 00:56:45 -07:00

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/* 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 "nsWyciwyg.h"
#include "base/compiler_specific.h"
#include "mozilla/net/ChannelEventQueue.h"
#include "WyciwygChannelChild.h"
#include "mozilla/dom/TabChild.h"
#include "mozilla/dom/ContentChild.h"
#include "nsCharsetSource.h"
#include "nsContentUtils.h"
#include "nsStringStream.h"
#include "nsNetUtil.h"
#include "nsISerializable.h"
#include "nsSerializationHelper.h"
#include "nsIProgressEventSink.h"
#include "mozilla/ipc/URIUtils.h"
#include "SerializedLoadContext.h"
#include "mozilla/ipc/BackgroundUtils.h"
#include "nsProxyRelease.h"
#include "nsContentSecurityManager.h"
using namespace mozilla::ipc;
using namespace mozilla::dom;
namespace mozilla {
namespace net {
NS_IMPL_ISUPPORTS(WyciwygChannelChild,
nsIRequest,
nsIChannel,
nsIWyciwygChannel,
nsIPrivateBrowsingChannel)
WyciwygChannelChild::WyciwygChannelChild()
: mStatus(NS_OK)
, mIsPending(false)
, mCanceled(false)
, mLoadFlags(LOAD_NORMAL)
, mContentLength(-1)
, mCharsetSource(kCharsetUninitialized)
, mState(WCC_NEW)
, mIPCOpen(false)
, mSentAppData(false)
{
LOG(("Creating WyciwygChannelChild @%x\n", this));
mEventQ = new ChannelEventQueue(NS_ISUPPORTS_CAST(nsIWyciwygChannel*, this));
}
WyciwygChannelChild::~WyciwygChannelChild()
{
LOG(("Destroying WyciwygChannelChild @%x\n", this));
if (mLoadInfo) {
nsCOMPtr<nsIThread> mainThread;
NS_GetMainThread(getter_AddRefs(mainThread));
nsILoadInfo *forgetableLoadInfo;
mLoadInfo.forget(&forgetableLoadInfo);
NS_ProxyRelease(mainThread, forgetableLoadInfo, false);
}
}
void
WyciwygChannelChild::AddIPDLReference()
{
MOZ_ASSERT(!mIPCOpen, "Attempt to retain more than one IPDL reference");
mIPCOpen = true;
AddRef();
}
void
WyciwygChannelChild::ReleaseIPDLReference()
{
MOZ_ASSERT(mIPCOpen, "Attempt to release nonexistent IPDL reference");
mIPCOpen = false;
Release();
}
nsresult
WyciwygChannelChild::Init(nsIURI* uri)
{
NS_ENSURE_ARG_POINTER(uri);
mState = WCC_INIT;
mURI = uri;
mOriginalURI = uri;
URIParams serializedUri;
SerializeURI(uri, serializedUri);
// propagate loadInfo
mozilla::ipc::PrincipalInfo requestingPrincipalInfo;
mozilla::ipc::PrincipalInfo triggeringPrincipalInfo;
uint32_t securityFlags;
uint32_t policyType;
if (mLoadInfo) {
mozilla::ipc::PrincipalToPrincipalInfo(mLoadInfo->LoadingPrincipal(),
&requestingPrincipalInfo);
mozilla::ipc::PrincipalToPrincipalInfo(mLoadInfo->TriggeringPrincipal(),
&triggeringPrincipalInfo);
securityFlags = mLoadInfo->GetSecurityFlags();
policyType = mLoadInfo->InternalContentPolicyType();
}
else {
// use default values if no loadInfo is provided
mozilla::ipc::PrincipalToPrincipalInfo(nsContentUtils::GetSystemPrincipal(),
&requestingPrincipalInfo);
mozilla::ipc::PrincipalToPrincipalInfo(nsContentUtils::GetSystemPrincipal(),
&triggeringPrincipalInfo);
securityFlags = nsILoadInfo::SEC_NORMAL;
policyType = nsIContentPolicy::TYPE_OTHER;
}
SendInit(serializedUri,
requestingPrincipalInfo,
triggeringPrincipalInfo,
securityFlags,
policyType);
return NS_OK;
}
//-----------------------------------------------------------------------------
// WyciwygChannelChild::PWyciwygChannelChild
//-----------------------------------------------------------------------------
class WyciwygStartRequestEvent : public ChannelEvent
{
public:
WyciwygStartRequestEvent(WyciwygChannelChild* child,
const nsresult& statusCode,
const int64_t& contentLength,
const int32_t& source,
const nsCString& charset,
const nsCString& securityInfo)
: mChild(child), mStatusCode(statusCode), mContentLength(contentLength),
mSource(source), mCharset(charset), mSecurityInfo(securityInfo) {}
void Run() { mChild->OnStartRequest(mStatusCode, mContentLength, mSource,
mCharset, mSecurityInfo); }
private:
WyciwygChannelChild* mChild;
nsresult mStatusCode;
int64_t mContentLength;
int32_t mSource;
nsCString mCharset;
nsCString mSecurityInfo;
};
bool
WyciwygChannelChild::RecvOnStartRequest(const nsresult& statusCode,
const int64_t& contentLength,
const int32_t& source,
const nsCString& charset,
const nsCString& securityInfo)
{
if (mEventQ->ShouldEnqueue()) {
mEventQ->Enqueue(new WyciwygStartRequestEvent(this, statusCode,
contentLength, source,
charset, securityInfo));
} else {
OnStartRequest(statusCode, contentLength, source, charset, securityInfo);
}
return true;
}
void
WyciwygChannelChild::OnStartRequest(const nsresult& statusCode,
const int64_t& contentLength,
const int32_t& source,
const nsCString& charset,
const nsCString& securityInfo)
{
LOG(("WyciwygChannelChild::RecvOnStartRequest [this=%p]\n", this));
mState = WCC_ONSTART;
mStatus = statusCode;
mContentLength = contentLength;
mCharsetSource = source;
mCharset = charset;
if (!securityInfo.IsEmpty()) {
NS_DeserializeObject(securityInfo, getter_AddRefs(mSecurityInfo));
}
AutoEventEnqueuer ensureSerialDispatch(mEventQ);
nsresult rv = mListener->OnStartRequest(this, mListenerContext);
if (NS_FAILED(rv))
Cancel(rv);
}
class WyciwygDataAvailableEvent : public ChannelEvent
{
public:
WyciwygDataAvailableEvent(WyciwygChannelChild* child,
const nsCString& data,
const uint64_t& offset)
: mChild(child), mData(data), mOffset(offset) {}
void Run() { mChild->OnDataAvailable(mData, mOffset); }
private:
WyciwygChannelChild* mChild;
nsCString mData;
uint64_t mOffset;
};
bool
WyciwygChannelChild::RecvOnDataAvailable(const nsCString& data,
const uint64_t& offset)
{
if (mEventQ->ShouldEnqueue()) {
mEventQ->Enqueue(new WyciwygDataAvailableEvent(this, data, offset));
} else {
OnDataAvailable(data, offset);
}
return true;
}
void
WyciwygChannelChild::OnDataAvailable(const nsCString& data,
const uint64_t& offset)
{
LOG(("WyciwygChannelChild::RecvOnDataAvailable [this=%p]\n", this));
if (mCanceled)
return;
mState = WCC_ONDATA;
// NOTE: the OnDataAvailable contract requires the client to read all the data
// in the inputstream. This code relies on that ('data' will go away after
// this function). Apparently the previous, non-e10s behavior was to actually
// support only reading part of the data, allowing later calls to read the
// rest.
nsCOMPtr<nsIInputStream> stringStream;
nsresult rv = NS_NewByteInputStream(getter_AddRefs(stringStream),
data.get(),
data.Length(),
NS_ASSIGNMENT_DEPEND);
if (NS_FAILED(rv)) {
Cancel(rv);
return;
}
AutoEventEnqueuer ensureSerialDispatch(mEventQ);
rv = mListener->OnDataAvailable(this, mListenerContext,
stringStream, offset, data.Length());
if (NS_FAILED(rv))
Cancel(rv);
if (mProgressSink && NS_SUCCEEDED(rv)) {
mProgressSink->OnProgress(this, nullptr, offset + data.Length(),
mContentLength);
}
}
class WyciwygStopRequestEvent : public ChannelEvent
{
public:
WyciwygStopRequestEvent(WyciwygChannelChild* child,
const nsresult& statusCode)
: mChild(child), mStatusCode(statusCode) {}
void Run() { mChild->OnStopRequest(mStatusCode); }
private:
WyciwygChannelChild* mChild;
nsresult mStatusCode;
};
bool
WyciwygChannelChild::RecvOnStopRequest(const nsresult& statusCode)
{
if (mEventQ->ShouldEnqueue()) {
mEventQ->Enqueue(new WyciwygStopRequestEvent(this, statusCode));
} else {
OnStopRequest(statusCode);
}
return true;
}
void
WyciwygChannelChild::OnStopRequest(const nsresult& statusCode)
{
LOG(("WyciwygChannelChild::RecvOnStopRequest [this=%p status=%u]\n",
this, statusCode));
{ // We need to ensure that all IPDL message dispatching occurs
// before we delete the protocol below
AutoEventEnqueuer ensureSerialDispatch(mEventQ);
mState = WCC_ONSTOP;
mIsPending = false;
if (!mCanceled)
mStatus = statusCode;
mListener->OnStopRequest(this, mListenerContext, statusCode);
mListener = 0;
mListenerContext = 0;
if (mLoadGroup)
mLoadGroup->RemoveRequest(this, nullptr, mStatus);
mCallbacks = 0;
mProgressSink = 0;
}
if (mIPCOpen)
PWyciwygChannelChild::Send__delete__(this);
}
class WyciwygCancelEvent : public ChannelEvent
{
public:
WyciwygCancelEvent(WyciwygChannelChild* child, const nsresult& status)
: mChild(child)
, mStatus(status) {}
void Run() { mChild->CancelEarly(mStatus); }
private:
WyciwygChannelChild* mChild;
nsresult mStatus;
};
bool
WyciwygChannelChild::RecvCancelEarly(const nsresult& statusCode)
{
if (mEventQ->ShouldEnqueue()) {
mEventQ->Enqueue(new WyciwygCancelEvent(this, statusCode));
} else {
CancelEarly(statusCode);
}
return true;
}
void WyciwygChannelChild::CancelEarly(const nsresult& statusCode)
{
LOG(("WyciwygChannelChild::CancelEarly [this=%p]\n", this));
if (mCanceled)
return;
mCanceled = true;
mStatus = statusCode;
mIsPending = false;
if (mLoadGroup)
mLoadGroup->RemoveRequest(this, nullptr, mStatus);
if (mListener) {
mListener->OnStartRequest(this, mListenerContext);
mListener->OnStopRequest(this, mListenerContext, mStatus);
}
mListener = nullptr;
mListenerContext = nullptr;
if (mIPCOpen)
PWyciwygChannelChild::Send__delete__(this);
}
//-----------------------------------------------------------------------------
// nsIRequest
//-----------------------------------------------------------------------------
NS_IMETHODIMP
WyciwygChannelChild::GetName(nsACString & aName)
{
return mURI->GetSpec(aName);
}
NS_IMETHODIMP
WyciwygChannelChild::IsPending(bool *aIsPending)
{
*aIsPending = mIsPending;
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::GetStatus(nsresult *aStatus)
{
*aStatus = mStatus;
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::Cancel(nsresult aStatus)
{
if (mCanceled)
return NS_OK;
mCanceled = true;
mStatus = aStatus;
if (mIPCOpen)
SendCancel(aStatus);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::Suspend()
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
WyciwygChannelChild::Resume()
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
WyciwygChannelChild::GetLoadGroup(nsILoadGroup * *aLoadGroup)
{
*aLoadGroup = mLoadGroup;
NS_IF_ADDREF(*aLoadGroup);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetLoadGroup(nsILoadGroup * aLoadGroup)
{
if (!CanSetLoadGroup(aLoadGroup)) {
return NS_ERROR_FAILURE;
}
mLoadGroup = aLoadGroup;
NS_QueryNotificationCallbacks(mCallbacks,
mLoadGroup,
NS_GET_IID(nsIProgressEventSink),
getter_AddRefs(mProgressSink));
UpdatePrivateBrowsing();
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::GetLoadFlags(nsLoadFlags *aLoadFlags)
{
*aLoadFlags = mLoadFlags;
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetLoadFlags(nsLoadFlags aLoadFlags)
{
mLoadFlags = aLoadFlags;
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsIChannel
//-----------------------------------------------------------------------------
NS_IMETHODIMP
WyciwygChannelChild::GetOriginalURI(nsIURI * *aOriginalURI)
{
*aOriginalURI = mOriginalURI;
NS_ADDREF(*aOriginalURI);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetOriginalURI(nsIURI * aOriginalURI)
{
NS_ENSURE_TRUE(mState == WCC_INIT, NS_ERROR_UNEXPECTED);
NS_ENSURE_ARG_POINTER(aOriginalURI);
mOriginalURI = aOriginalURI;
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::GetURI(nsIURI * *aURI)
{
*aURI = mURI;
NS_IF_ADDREF(*aURI);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::GetOwner(nsISupports * *aOwner)
{
NS_IF_ADDREF(*aOwner = mOwner);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetOwner(nsISupports * aOwner)
{
mOwner = aOwner;
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::GetLoadInfo(nsILoadInfo **aLoadInfo)
{
NS_IF_ADDREF(*aLoadInfo = mLoadInfo);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetLoadInfo(nsILoadInfo* aLoadInfo)
{
mLoadInfo = aLoadInfo;
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::GetNotificationCallbacks(nsIInterfaceRequestor * *aCallbacks)
{
*aCallbacks = mCallbacks;
NS_IF_ADDREF(*aCallbacks);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetNotificationCallbacks(nsIInterfaceRequestor * aCallbacks)
{
if (!CanSetCallbacks(aCallbacks)) {
return NS_ERROR_FAILURE;
}
mCallbacks = aCallbacks;
NS_QueryNotificationCallbacks(mCallbacks,
mLoadGroup,
NS_GET_IID(nsIProgressEventSink),
getter_AddRefs(mProgressSink));
UpdatePrivateBrowsing();
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::GetSecurityInfo(nsISupports * *aSecurityInfo)
{
NS_IF_ADDREF(*aSecurityInfo = mSecurityInfo);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::GetContentType(nsACString & aContentType)
{
aContentType.AssignLiteral(WYCIWYG_TYPE);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetContentType(const nsACString & aContentType)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
WyciwygChannelChild::GetContentCharset(nsACString & aContentCharset)
{
aContentCharset.AssignLiteral("UTF-16");
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetContentCharset(const nsACString & aContentCharset)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
WyciwygChannelChild::GetContentDisposition(uint32_t *aContentDisposition)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
WyciwygChannelChild::SetContentDisposition(uint32_t aContentDisposition)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
WyciwygChannelChild::GetContentDispositionFilename(nsAString &aContentDispositionFilename)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
WyciwygChannelChild::SetContentDispositionFilename(const nsAString &aContentDispositionFilename)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
WyciwygChannelChild::GetContentDispositionHeader(nsACString &aContentDispositionHeader)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
WyciwygChannelChild::GetContentLength(int64_t *aContentLength)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
WyciwygChannelChild::SetContentLength(int64_t aContentLength)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
WyciwygChannelChild::Open(nsIInputStream **_retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
WyciwygChannelChild::Open2(nsIInputStream** aStream)
{
nsCOMPtr<nsIStreamListener> listener;
nsresult rv = nsContentSecurityManager::doContentSecurityCheck(this, listener);
NS_ENSURE_SUCCESS(rv, rv);
return Open(aStream);
}
static mozilla::dom::TabChild*
GetTabChild(nsIChannel* aChannel)
{
nsCOMPtr<nsITabChild> iTabChild;
NS_QueryNotificationCallbacks(aChannel, iTabChild);
return iTabChild ? static_cast<mozilla::dom::TabChild*>(iTabChild.get()) : nullptr;
}
NS_IMETHODIMP
WyciwygChannelChild::AsyncOpen(nsIStreamListener *aListener, nsISupports *aContext)
{
MOZ_ASSERT(!mLoadInfo ||
mLoadInfo->GetSecurityMode() == 0 ||
mLoadInfo->GetInitialSecurityCheckDone() ||
(mLoadInfo->GetSecurityMode() == nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL &&
nsContentUtils::IsSystemPrincipal(mLoadInfo->LoadingPrincipal())),
"security flags in loadInfo but asyncOpen2() not called");
LOG(("WyciwygChannelChild::AsyncOpen [this=%p]\n", this));
// The only places creating wyciwyg: channels should be
// HTMLDocument::OpenCommon and session history. Both should be setting an
// owner or loadinfo.
NS_PRECONDITION(mOwner || mLoadInfo, "Must have a principal");
NS_ENSURE_STATE(mOwner || mLoadInfo);
NS_ENSURE_ARG_POINTER(aListener);
NS_ENSURE_TRUE(!mIsPending, NS_ERROR_IN_PROGRESS);
mListener = aListener;
mListenerContext = aContext;
mIsPending = true;
if (mLoadGroup) {
mLoadGroup->AddRequest(this, nullptr);
}
URIParams originalURI;
SerializeURI(mOriginalURI, originalURI);
mozilla::dom::TabChild* tabChild = GetTabChild(this);
if (MissingRequiredTabChild(tabChild, "wyciwyg")) {
return NS_ERROR_ILLEGAL_VALUE;
}
PBrowserOrId browser = static_cast<ContentChild*>(Manager()->Manager())
->GetBrowserOrId(tabChild);
SendAsyncOpen(originalURI, mLoadFlags, IPC::SerializedLoadContext(this), browser);
mSentAppData = true;
mState = WCC_OPENED;
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::AsyncOpen2(nsIStreamListener *aListener)
{
nsCOMPtr<nsIStreamListener> listener = aListener;
nsresult rv = nsContentSecurityManager::doContentSecurityCheck(this, listener);
NS_ENSURE_SUCCESS(rv, rv);
return AsyncOpen(listener, nullptr);
}
//-----------------------------------------------------------------------------
// nsIWyciwygChannel
//-----------------------------------------------------------------------------
NS_IMETHODIMP
WyciwygChannelChild::WriteToCacheEntry(const nsAString & aData)
{
NS_ENSURE_TRUE((mState == WCC_INIT) ||
(mState == WCC_ONWRITE), NS_ERROR_UNEXPECTED);
if (!mSentAppData) {
mozilla::dom::TabChild* tabChild = GetTabChild(this);
PBrowserOrId browser = static_cast<ContentChild*>(Manager()->Manager())
->GetBrowserOrId(tabChild);
SendAppData(IPC::SerializedLoadContext(this), browser);
mSentAppData = true;
}
SendWriteToCacheEntry(PromiseFlatString(aData));
mState = WCC_ONWRITE;
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::CloseCacheEntry(nsresult reason)
{
NS_ENSURE_TRUE(mState == WCC_ONWRITE, NS_ERROR_UNEXPECTED);
SendCloseCacheEntry(reason);
mState = WCC_ONCLOSED;
if (mIPCOpen)
PWyciwygChannelChild::Send__delete__(this);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetSecurityInfo(nsISupports *aSecurityInfo)
{
mSecurityInfo = aSecurityInfo;
if (mSecurityInfo) {
nsCOMPtr<nsISerializable> serializable = do_QueryInterface(mSecurityInfo);
if (serializable) {
nsCString secInfoStr;
NS_SerializeToString(serializable, secInfoStr);
SendSetSecurityInfo(secInfoStr);
}
else {
NS_WARNING("Can't serialize security info");
}
}
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetCharsetAndSource(int32_t aSource, const nsACString & aCharset)
{
// mState == WCC_ONSTART when reading from the channel
// mState == WCC_INIT when writing to the cache
NS_ENSURE_TRUE((mState == WCC_ONSTART) ||
(mState == WCC_INIT), NS_ERROR_UNEXPECTED);
mCharsetSource = aSource;
mCharset = aCharset;
// TODO ensure that nsWyciwygChannel in the parent has still the cache entry
SendSetCharsetAndSource(mCharsetSource, mCharset);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::GetCharsetAndSource(int32_t *aSource, nsACString & _retval)
{
NS_ENSURE_TRUE((mState == WCC_ONSTART) ||
(mState == WCC_ONDATA) ||
(mState == WCC_ONSTOP), NS_ERROR_NOT_AVAILABLE);
if (mCharsetSource == kCharsetUninitialized)
return NS_ERROR_NOT_AVAILABLE;
*aSource = mCharsetSource;
_retval = mCharset;
return NS_OK;
}
//------------------------------------------------------------------------------
} // namespace net
} // namespace mozilla
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