import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/ipc/nsIContentChild.cpp

@@ -0,0 +1,159 @@
+/* -*- 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 "nsIContentChild.h"
+
+#include "mozilla/dom/ContentChild.h"
+#include "mozilla/dom/DOMTypes.h"
+#include "mozilla/dom/File.h"
+#include "mozilla/dom/PermissionMessageUtils.h"
+#include "mozilla/dom/TabChild.h"
+#include "mozilla/dom/ipc/BlobChild.h"
+#include "mozilla/dom/ipc/StructuredCloneData.h"
+#include "mozilla/ipc/FileDescriptorSetChild.h"
+#include "mozilla/ipc/InputStreamUtils.h"
+#include "mozilla/ipc/SendStream.h"
+
+#include "nsPrintfCString.h"
+#include "xpcpublic.h"
+
+using namespace mozilla::ipc;
+using namespace mozilla::jsipc;
+
+namespace mozilla {
+namespace dom {
+
+PJavaScriptChild*
+nsIContentChild::AllocPJavaScriptChild()
+{
+  return NewJavaScriptChild();
+}
+
+bool
+nsIContentChild::DeallocPJavaScriptChild(PJavaScriptChild* aChild)
+{
+  ReleaseJavaScriptChild(aChild);
+  return true;
+}
+
+PBrowserChild*
+nsIContentChild::AllocPBrowserChild(const TabId& aTabId,
+                                    const IPCTabContext& aContext,
+                                    const uint32_t& aChromeFlags,
+                                    const ContentParentId& aCpID,
+                                    const bool& aIsForApp,
+                                    const bool& aIsForBrowser)
+{
+  // We'll happily accept any kind of IPCTabContext here; we don't need to
+  // check that it's of a certain type for security purposes, because we
+  // believe whatever the parent process tells us.
+
+  MaybeInvalidTabContext tc(aContext);
+  if (!tc.IsValid()) {
+    NS_ERROR(nsPrintfCString("Received an invalid TabContext from "
+                             "the parent process. (%s)  Crashing...",
+                             tc.GetInvalidReason()).get());
+    MOZ_CRASH("Invalid TabContext received from the parent process.");
+  }
+
+  RefPtr<TabChild> child =
+    TabChild::Create(this, aTabId, tc.GetTabContext(), aChromeFlags);
+
+  // The ref here is released in DeallocPBrowserChild.
+  return child.forget().take();
+}
+
+bool
+nsIContentChild::DeallocPBrowserChild(PBrowserChild* aIframe)
+{
+  TabChild* child = static_cast<TabChild*>(aIframe);
+  NS_RELEASE(child);
+  return true;
+}
+
+PBlobChild*
+nsIContentChild::AllocPBlobChild(const BlobConstructorParams& aParams)
+{
+  return BlobChild::Create(this, aParams);
+}
+
+bool
+nsIContentChild::DeallocPBlobChild(PBlobChild* aActor)
+{
+  BlobChild::Destroy(aActor);
+  return true;
+}
+
+BlobChild*
+nsIContentChild::GetOrCreateActorForBlob(Blob* aBlob)
+{
+  MOZ_ASSERT(NS_IsMainThread());
+  MOZ_ASSERT(aBlob);
+
+  RefPtr<BlobImpl> blobImpl = aBlob->Impl();
+  MOZ_ASSERT(blobImpl);
+
+  return GetOrCreateActorForBlobImpl(blobImpl);
+}
+
+BlobChild*
+nsIContentChild::GetOrCreateActorForBlobImpl(BlobImpl* aImpl)
+{
+  MOZ_ASSERT(NS_IsMainThread());
+  MOZ_ASSERT(aImpl);
+
+  BlobChild* actor = BlobChild::GetOrCreate(this, aImpl);
+  NS_ENSURE_TRUE(actor, nullptr);
+
+  return actor;
+}
+
+PSendStreamChild*
+nsIContentChild::AllocPSendStreamChild()
+{
+  MOZ_CRASH("PSendStreamChild actors should be manually constructed!");
+}
+
+bool
+nsIContentChild::DeallocPSendStreamChild(PSendStreamChild* aActor)
+{
+  delete aActor;
+  return true;
+}
+
+PFileDescriptorSetChild*
+nsIContentChild::AllocPFileDescriptorSetChild(const FileDescriptor& aFD)
+{
+  return new FileDescriptorSetChild(aFD);
+}
+
+bool
+nsIContentChild::DeallocPFileDescriptorSetChild(PFileDescriptorSetChild* aActor)
+{
+  delete static_cast<FileDescriptorSetChild*>(aActor);
+  return true;
+}
+
+bool
+nsIContentChild::RecvAsyncMessage(const nsString& aMsg,
+                                  InfallibleTArray<CpowEntry>&& aCpows,
+                                  const IPC::Principal& aPrincipal,
+                                  const ClonedMessageData& aData)
+{
+  RefPtr<nsFrameMessageManager> cpm = nsFrameMessageManager::GetChildProcessManager();
+  if (cpm) {
+    ipc::StructuredCloneData data;
+    ipc::UnpackClonedMessageDataForChild(aData, data);
+
+    CrossProcessCpowHolder cpows(this, aCpows);
+    cpm->ReceiveMessage(static_cast<nsIContentFrameMessageManager*>(cpm.get()), nullptr,
+                        aMsg, false, &data, &cpows, aPrincipal, nullptr);
+  }
+  return true;
+}
+
+} // namespace dom
+} // namespace mozilla