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Diffstat (limited to '')
-rw-r--r-- | widget/ClipboardWriteRequestParent.cpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/widget/ClipboardWriteRequestParent.cpp b/widget/ClipboardWriteRequestParent.cpp new file mode 100644 index 0000000000..751befbe05 --- /dev/null +++ b/widget/ClipboardWriteRequestParent.cpp @@ -0,0 +1,113 @@ +/* -*- Mode: C++; tab-width: 2; 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/ClipboardWriteRequestParent.h" + +#include "mozilla/dom/ContentParent.h" +#include "mozilla/net/CookieJarSettings.h" +#include "nsComponentManagerUtils.h" +#include "nsIClipboard.h" +#include "nsITransferable.h" +#include "nsWidgetsCID.h" + +static NS_DEFINE_CID(kCClipboardCID, NS_CLIPBOARD_CID); + +using mozilla::dom::ContentParent; +using mozilla::ipc::IPCResult; + +namespace mozilla { + +NS_IMPL_ISUPPORTS(ClipboardWriteRequestParent, nsIAsyncClipboardRequestCallback) + +ClipboardWriteRequestParent::ClipboardWriteRequestParent( + ContentParent* aManager) + : mManager(aManager) {} + +ClipboardWriteRequestParent::~ClipboardWriteRequestParent() = default; + +nsresult ClipboardWriteRequestParent::Init(const int32_t& aClipboardType) { + nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID)); + if (!clipboard) { + Unused << PClipboardWriteRequestParent::Send__delete__(this, + NS_ERROR_FAILURE); + return NS_ERROR_FAILURE; + } + + nsresult rv = clipboard->AsyncSetData(aClipboardType, this, + getter_AddRefs(mAsyncSetClipboardData)); + if (NS_FAILED(rv)) { + Unused << PClipboardWriteRequestParent::Send__delete__(this, rv); + return rv; + } + + return NS_OK; +} + +NS_IMETHODIMP ClipboardWriteRequestParent::OnComplete(nsresult aResult) { + nsCOMPtr<nsIAsyncSetClipboardData> clipboardData = + std::move(mAsyncSetClipboardData); + if (clipboardData) { + Unused << PClipboardWriteRequestParent::Send__delete__(this, aResult); + } + return NS_OK; +} + +IPCResult ClipboardWriteRequestParent::RecvSetData( + const IPCTransferable& aTransferable) { + if (!mManager->ValidatePrincipal( + aTransferable.requestingPrincipal(), + {ContentParent::ValidatePrincipalOptions::AllowNullPtr, + ContentParent::ValidatePrincipalOptions::AllowExpanded, + ContentParent::ValidatePrincipalOptions::AllowSystem})) { + ContentParent::LogAndAssertFailedPrincipalValidationInfo( + aTransferable.requestingPrincipal(), __func__); + } + + if (!mAsyncSetClipboardData) { + return IPC_OK(); + } + + nsresult rv = NS_ERROR_FAILURE; + nsCOMPtr<nsITransferable> trans = + do_CreateInstance("@mozilla.org/widget/transferable;1", &rv); + if (NS_FAILED(rv)) { + mAsyncSetClipboardData->Abort(rv); + return IPC_OK(); + } + + trans->Init(nullptr); + rv = nsContentUtils::IPCTransferableToTransferable( + aTransferable, true /* aAddDataFlavor */, trans, + true /* aFilterUnknownFlavors */); + if (NS_FAILED(rv)) { + mAsyncSetClipboardData->Abort(rv); + return IPC_OK(); + } + + mAsyncSetClipboardData->SetData(trans, nullptr); + return IPC_OK(); +} + +IPCResult ClipboardWriteRequestParent::Recv__delete__(nsresult aReason) { +#ifndef FUZZING_SNAPSHOT + MOZ_DIAGNOSTIC_ASSERT(NS_FAILED(aReason)); +#endif + nsCOMPtr<nsIAsyncSetClipboardData> clipboardData = + std::move(mAsyncSetClipboardData); + if (clipboardData) { + clipboardData->Abort(aReason); + } + return IPC_OK(); +} + +void ClipboardWriteRequestParent::ActorDestroy(ActorDestroyReason aReason) { + nsCOMPtr<nsIAsyncSetClipboardData> clipboardData = + std::move(mAsyncSetClipboardData); + if (clipboardData) { + clipboardData->Abort(NS_ERROR_ABORT); + } +} + +} // namespace mozilla |