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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "mozilla/dom/cache/CacheOpParent.h"
#include "mozilla/Unused.h"
#include "mozilla/dom/cache/AutoUtils.h"
#include "mozilla/dom/cache/ReadStream.h"
#include "mozilla/dom/cache/SavedTypes.h"
#include "mozilla/ipc/FileDescriptorSetParent.h"
#include "mozilla/ipc/InputStreamUtils.h"
#include "mozilla/ipc/IPCStreamUtils.h"
#include "mozilla/ipc/SendStream.h"
namespace mozilla {
namespace dom {
namespace cache {
using mozilla::ipc::FileDescriptorSetParent;
using mozilla::ipc::PBackgroundParent;
using mozilla::ipc::SendStreamParent;
CacheOpParent::CacheOpParent(PBackgroundParent* aIpcManager, CacheId aCacheId,
const CacheOpArgs& aOpArgs)
: mIpcManager(aIpcManager)
, mCacheId(aCacheId)
, mNamespace(INVALID_NAMESPACE)
, mOpArgs(aOpArgs)
{
MOZ_DIAGNOSTIC_ASSERT(mIpcManager);
}
CacheOpParent::CacheOpParent(PBackgroundParent* aIpcManager,
Namespace aNamespace, const CacheOpArgs& aOpArgs)
: mIpcManager(aIpcManager)
, mCacheId(INVALID_CACHE_ID)
, mNamespace(aNamespace)
, mOpArgs(aOpArgs)
{
MOZ_DIAGNOSTIC_ASSERT(mIpcManager);
}
CacheOpParent::~CacheOpParent()
{
NS_ASSERT_OWNINGTHREAD(CacheOpParent);
}
void
CacheOpParent::Execute(ManagerId* aManagerId)
{
NS_ASSERT_OWNINGTHREAD(CacheOpParent);
MOZ_DIAGNOSTIC_ASSERT(!mManager);
MOZ_DIAGNOSTIC_ASSERT(!mVerifier);
RefPtr<cache::Manager> manager;
nsresult rv = cache::Manager::GetOrCreate(aManagerId, getter_AddRefs(manager));
if (NS_WARN_IF(NS_FAILED(rv))) {
ErrorResult result(rv);
Unused << Send__delete__(this, result, void_t());
result.SuppressException();
return;
}
Execute(manager);
}
void
CacheOpParent::Execute(cache::Manager* aManager)
{
NS_ASSERT_OWNINGTHREAD(CacheOpParent);
MOZ_DIAGNOSTIC_ASSERT(!mManager);
MOZ_DIAGNOSTIC_ASSERT(!mVerifier);
mManager = aManager;
// Handle put op
if (mOpArgs.type() == CacheOpArgs::TCachePutAllArgs) {
MOZ_DIAGNOSTIC_ASSERT(mCacheId != INVALID_CACHE_ID);
const CachePutAllArgs& args = mOpArgs.get_CachePutAllArgs();
const nsTArray<CacheRequestResponse>& list = args.requestResponseList();
AutoTArray<nsCOMPtr<nsIInputStream>, 256> requestStreamList;
AutoTArray<nsCOMPtr<nsIInputStream>, 256> responseStreamList;
for (uint32_t i = 0; i < list.Length(); ++i) {
requestStreamList.AppendElement(
DeserializeCacheStream(list[i].request().body()));
responseStreamList.AppendElement(
DeserializeCacheStream(list[i].response().body()));
}
mManager->ExecutePutAll(this, mCacheId, args.requestResponseList(),
requestStreamList, responseStreamList);
return;
}
// Handle all other cache ops
if (mCacheId != INVALID_CACHE_ID) {
MOZ_DIAGNOSTIC_ASSERT(mNamespace == INVALID_NAMESPACE);
mManager->ExecuteCacheOp(this, mCacheId, mOpArgs);
return;
}
// Handle all storage ops
MOZ_DIAGNOSTIC_ASSERT(mNamespace != INVALID_NAMESPACE);
mManager->ExecuteStorageOp(this, mNamespace, mOpArgs);
}
void
CacheOpParent::WaitForVerification(PrincipalVerifier* aVerifier)
{
NS_ASSERT_OWNINGTHREAD(CacheOpParent);
MOZ_DIAGNOSTIC_ASSERT(!mManager);
MOZ_DIAGNOSTIC_ASSERT(!mVerifier);
mVerifier = aVerifier;
mVerifier->AddListener(this);
}
void
CacheOpParent::ActorDestroy(ActorDestroyReason aReason)
{
NS_ASSERT_OWNINGTHREAD(CacheOpParent);
if (mVerifier) {
mVerifier->RemoveListener(this);
mVerifier = nullptr;
}
if (mManager) {
mManager->RemoveListener(this);
mManager = nullptr;
}
mIpcManager = nullptr;
}
void
CacheOpParent::OnPrincipalVerified(nsresult aRv, ManagerId* aManagerId)
{
NS_ASSERT_OWNINGTHREAD(CacheOpParent);
mVerifier->RemoveListener(this);
mVerifier = nullptr;
if (NS_WARN_IF(NS_FAILED(aRv))) {
ErrorResult result(aRv);
Unused << Send__delete__(this, result, void_t());
result.SuppressException();
return;
}
Execute(aManagerId);
}
void
CacheOpParent::OnOpComplete(ErrorResult&& aRv, const CacheOpResult& aResult,
CacheId aOpenedCacheId,
const nsTArray<SavedResponse>& aSavedResponseList,
const nsTArray<SavedRequest>& aSavedRequestList,
StreamList* aStreamList)
{
NS_ASSERT_OWNINGTHREAD(CacheOpParent);
MOZ_DIAGNOSTIC_ASSERT(mIpcManager);
MOZ_DIAGNOSTIC_ASSERT(mManager);
// Never send an op-specific result if we have an error. Instead, send
// void_t() to ensure that we don't leak actors on the child side.
if (NS_WARN_IF(aRv.Failed())) {
Unused << Send__delete__(this, aRv, void_t());
aRv.SuppressException(); // We serialiazed it, as best we could.
return;
}
uint32_t entryCount = std::max(1lu, static_cast<unsigned long>(
std::max(aSavedResponseList.Length(),
aSavedRequestList.Length())));
// The result must contain the appropriate type at this point. It may
// or may not contain the additional result data yet. For types that
// do not need special processing, it should already be set. If the
// result requires actor-specific operations, then we do that below.
// If the type and data types don't match, then we will trigger an
// assertion in AutoParentOpResult::Add().
AutoParentOpResult result(mIpcManager, aResult, entryCount);
if (aOpenedCacheId != INVALID_CACHE_ID) {
result.Add(aOpenedCacheId, mManager);
}
for (uint32_t i = 0; i < aSavedResponseList.Length(); ++i) {
result.Add(aSavedResponseList[i], aStreamList);
}
for (uint32_t i = 0; i < aSavedRequestList.Length(); ++i) {
result.Add(aSavedRequestList[i], aStreamList);
}
Unused << Send__delete__(this, aRv, result.SendAsOpResult());
}
already_AddRefed<nsIInputStream>
CacheOpParent::DeserializeCacheStream(const CacheReadStreamOrVoid& aStreamOrVoid)
{
if (aStreamOrVoid.type() == CacheReadStreamOrVoid::Tvoid_t) {
return nullptr;
}
nsCOMPtr<nsIInputStream> stream;
const CacheReadStream& readStream = aStreamOrVoid.get_CacheReadStream();
// Option 1: One of our own ReadStreams was passed back to us with a stream
// control actor.
stream = ReadStream::Create(readStream);
if (stream) {
return stream.forget();
}
// Option 2: A stream was serialized using normal methods or passed
// as a PSendStream actor. Use the standard method for
// extracting the resulting stream.
return DeserializeIPCStream(readStream.stream());
}
} // namespace cache
} // namespace dom
} // namespace mozilla
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