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858cf1d807
Now that digits have been filtered out of the message manager message names to avoid creating thousands of similar keys, we can reenable the telemetry by renaming it. Also, update the description to address bsmedberg's comments, and add me to the list of alert emails.
2253 lines
72 KiB
C++
2253 lines
72 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 "base/basictypes.h"
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#include "nsFrameMessageManager.h"
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#include "AppProcessChecker.h"
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#include "ContentChild.h"
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#include "nsContentUtils.h"
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#include "nsDOMClassInfoID.h"
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#include "nsError.h"
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#include "nsIXPConnect.h"
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#include "jsapi.h"
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#include "jsfriendapi.h"
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#include "nsJSUtils.h"
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#include "nsJSPrincipals.h"
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#include "nsNetUtil.h"
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#include "nsScriptLoader.h"
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#include "nsFrameLoader.h"
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#include "nsIXULRuntime.h"
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#include "nsIScriptError.h"
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#include "nsIConsoleService.h"
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#include "nsIMemoryReporter.h"
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#include "nsIProtocolHandler.h"
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#include "nsIScriptSecurityManager.h"
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#include "nsIDOMClassInfo.h"
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#include "xpcpublic.h"
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#include "mozilla/CycleCollectedJSRuntime.h"
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#include "mozilla/IntentionalCrash.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/Telemetry.h"
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#include "mozilla/dom/File.h"
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#include "mozilla/dom/MessagePort.h"
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#include "mozilla/dom/MessagePortList.h"
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#include "mozilla/dom/nsIContentParent.h"
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#include "mozilla/dom/PermissionMessageUtils.h"
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#include "mozilla/dom/ProcessGlobal.h"
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#include "mozilla/dom/SameProcessMessageQueue.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "mozilla/dom/ipc/BlobChild.h"
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#include "mozilla/dom/ipc/BlobParent.h"
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#include "mozilla/dom/ipc/StructuredCloneData.h"
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#include "mozilla/dom/DOMStringList.h"
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#include "mozilla/jsipc/CrossProcessObjectWrappers.h"
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#include "nsPrintfCString.h"
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#include "nsXULAppAPI.h"
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#include "nsQueryObject.h"
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#include <algorithm>
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#ifdef MOZ_CRASHREPORTER
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#include "nsExceptionHandler.h"
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#endif
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#ifdef ANDROID
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#include <android/log.h>
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#endif
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#ifdef XP_WIN
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#include <windows.h>
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# if defined(SendMessage)
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# undef SendMessage
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# endif
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#endif
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using namespace mozilla;
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using namespace mozilla::dom;
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using namespace mozilla::dom::ipc;
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nsFrameMessageManager::nsFrameMessageManager(mozilla::dom::ipc::MessageManagerCallback* aCallback,
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nsFrameMessageManager* aParentManager,
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/* mozilla::dom::ipc::MessageManagerFlags */ uint32_t aFlags)
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: mChrome(!!(aFlags & mozilla::dom::ipc::MM_CHROME)),
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mGlobal(!!(aFlags & mozilla::dom::ipc::MM_GLOBAL)),
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mIsProcessManager(!!(aFlags & mozilla::dom::ipc::MM_PROCESSMANAGER)),
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mIsBroadcaster(!!(aFlags & mozilla::dom::ipc::MM_BROADCASTER)),
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mOwnsCallback(!!(aFlags & mozilla::dom::ipc::MM_OWNSCALLBACK)),
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mHandlingMessage(false),
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mClosed(false),
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mDisconnected(false),
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mCallback(aCallback),
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mParentManager(aParentManager)
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{
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NS_ASSERTION(mChrome || !aParentManager, "Should not set parent manager!");
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NS_ASSERTION(!mIsBroadcaster || !mCallback,
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"Broadcasters cannot have callbacks!");
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if (mIsProcessManager && (!mChrome || IsBroadcaster())) {
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mozilla::HoldJSObjects(this);
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}
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// This is a bit hackish. When parent manager is global, we want
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// to attach the message manager to it immediately.
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// Is it just the frame message manager which waits until the
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// content process is running.
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if (mParentManager && (mCallback || IsBroadcaster())) {
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mParentManager->AddChildManager(this);
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}
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if (mOwnsCallback) {
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mOwnedCallback = aCallback;
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}
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}
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nsFrameMessageManager::~nsFrameMessageManager()
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{
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if (mIsProcessManager && (!mChrome || IsBroadcaster())) {
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mozilla::DropJSObjects(this);
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}
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for (int32_t i = mChildManagers.Count(); i > 0; --i) {
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static_cast<nsFrameMessageManager*>(mChildManagers[i - 1])->
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Disconnect(false);
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}
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if (mIsProcessManager) {
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if (this == sParentProcessManager) {
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sParentProcessManager = nullptr;
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}
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if (this == sChildProcessManager) {
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sChildProcessManager = nullptr;
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delete mozilla::dom::SameProcessMessageQueue::Get();
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}
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if (this == sSameProcessParentManager) {
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sSameProcessParentManager = nullptr;
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}
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}
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}
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NS_IMPL_CYCLE_COLLECTION_CLASS(nsFrameMessageManager)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsFrameMessageManager)
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for (auto iter = tmp->mListeners.Iter(); !iter.Done(); iter.Next()) {
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nsAutoTObserverArray<nsMessageListenerInfo, 1>* listeners = iter.UserData();
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uint32_t count = listeners->Length();
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for (uint32_t i = 0; i < count; ++i) {
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NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "listeners[i] mStrongListener");
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cb.NoteXPCOMChild(listeners->ElementAt(i).mStrongListener.get());
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}
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}
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mChildManagers)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mParentManager)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(nsFrameMessageManager)
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NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mInitialProcessData)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsFrameMessageManager)
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tmp->mListeners.Clear();
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for (int32_t i = tmp->mChildManagers.Count(); i > 0; --i) {
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static_cast<nsFrameMessageManager*>(tmp->mChildManagers[i - 1])->
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Disconnect(false);
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}
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mChildManagers)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mParentManager)
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tmp->mInitialProcessData.setNull();
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsFrameMessageManager)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIContentFrameMessageManager)
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/* nsFrameMessageManager implements nsIMessageSender and nsIMessageBroadcaster,
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* both of which descend from nsIMessageListenerManager. QI'ing to
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* nsIMessageListenerManager is therefore ambiguous and needs explicit casts
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* depending on which child interface applies. */
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NS_INTERFACE_MAP_ENTRY_AGGREGATED(nsIMessageListenerManager,
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(mIsBroadcaster ?
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static_cast<nsIMessageListenerManager*>(
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static_cast<nsIMessageBroadcaster*>(this)) :
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static_cast<nsIMessageListenerManager*>(
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static_cast<nsIMessageSender*>(this))))
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/* Message managers in child process implement nsIMessageSender and
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nsISyncMessageSender. Message managers in the chrome process are
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either broadcasters (if they have subordinate/child message
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managers) or they're simple message senders. */
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NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsISyncMessageSender, !mChrome)
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NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIMessageSender, !mChrome || !mIsBroadcaster)
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NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIMessageBroadcaster, mChrome && mIsBroadcaster)
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/* nsIContentFrameMessageManager is accessible only in TabChildGlobal. */
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NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIContentFrameMessageManager,
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!mChrome && !mIsProcessManager)
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/* Frame message managers (non-process message managers) support nsIFrameScriptLoader. */
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NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIFrameScriptLoader,
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mChrome && !mIsProcessManager)
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/* Process message managers (process message managers) support nsIProcessScriptLoader. */
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NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIProcessScriptLoader,
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mChrome && mIsProcessManager)
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/* Global process message managers (process message managers) support nsIGlobalProcessScriptLoader. */
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NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIGlobalProcessScriptLoader,
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mChrome && mIsProcessManager && mIsBroadcaster)
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/* Message senders in the chrome process support nsIProcessChecker. */
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NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIProcessChecker,
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mChrome && !mIsBroadcaster)
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NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO_CONDITIONAL(ChromeMessageBroadcaster,
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mChrome && mIsBroadcaster)
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NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO_CONDITIONAL(ChromeMessageSender,
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mChrome && !mIsBroadcaster)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTING_ADDREF(nsFrameMessageManager)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(nsFrameMessageManager)
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enum ActorFlavorEnum {
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Parent = 0,
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Child
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};
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template <ActorFlavorEnum>
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struct BlobTraits
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{ };
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template <>
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struct BlobTraits<Parent>
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{
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typedef mozilla::dom::BlobParent BlobType;
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typedef mozilla::dom::PBlobParent ProtocolType;
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typedef mozilla::dom::nsIContentParent ConcreteContentManagerType;
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};
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template <>
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struct BlobTraits<Child>
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{
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typedef mozilla::dom::BlobChild BlobType;
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typedef mozilla::dom::PBlobChild ProtocolType;
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typedef mozilla::dom::nsIContentChild ConcreteContentManagerType;
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};
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template<ActorFlavorEnum>
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struct DataBlobs
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{ };
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template<>
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struct DataBlobs<Parent>
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{
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typedef BlobTraits<Parent>::ProtocolType ProtocolType;
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static InfallibleTArray<ProtocolType*>& Blobs(ClonedMessageData& aData)
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{
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return aData.blobsParent();
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}
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static const InfallibleTArray<ProtocolType*>& Blobs(const ClonedMessageData& aData)
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{
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return aData.blobsParent();
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}
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};
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template<>
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struct DataBlobs<Child>
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{
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typedef BlobTraits<Child>::ProtocolType ProtocolType;
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static InfallibleTArray<ProtocolType*>& Blobs(ClonedMessageData& aData)
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{
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return aData.blobsChild();
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}
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static const InfallibleTArray<ProtocolType*>& Blobs(const ClonedMessageData& aData)
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{
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return aData.blobsChild();
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}
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};
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template<ActorFlavorEnum Flavor>
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static bool
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BuildClonedMessageData(typename BlobTraits<Flavor>::ConcreteContentManagerType* aManager,
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StructuredCloneData& aData,
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ClonedMessageData& aClonedData)
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{
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SerializedStructuredCloneBuffer& buffer = aClonedData.data();
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buffer.data = aData.Data();
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buffer.dataLength = aData.DataLength();
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aClonedData.identfiers().AppendElements(aData.PortIdentifiers());
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const nsTArray<RefPtr<BlobImpl>>& blobImpls = aData.BlobImpls();
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if (!blobImpls.IsEmpty()) {
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typedef typename BlobTraits<Flavor>::ProtocolType ProtocolType;
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InfallibleTArray<ProtocolType*>& blobList = DataBlobs<Flavor>::Blobs(aClonedData);
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uint32_t length = blobImpls.Length();
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blobList.SetCapacity(length);
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for (uint32_t i = 0; i < length; ++i) {
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typename BlobTraits<Flavor>::BlobType* protocolActor =
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aManager->GetOrCreateActorForBlobImpl(blobImpls[i]);
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if (!protocolActor) {
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return false;
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}
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blobList.AppendElement(protocolActor);
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}
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}
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return true;
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}
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bool
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MessageManagerCallback::BuildClonedMessageDataForParent(nsIContentParent* aParent,
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StructuredCloneData& aData,
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ClonedMessageData& aClonedData)
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{
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return BuildClonedMessageData<Parent>(aParent, aData, aClonedData);
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}
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bool
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MessageManagerCallback::BuildClonedMessageDataForChild(nsIContentChild* aChild,
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StructuredCloneData& aData,
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ClonedMessageData& aClonedData)
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{
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return BuildClonedMessageData<Child>(aChild, aData, aClonedData);
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}
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template<ActorFlavorEnum Flavor>
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static void
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UnpackClonedMessageData(const ClonedMessageData& aClonedData,
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StructuredCloneData& aData)
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{
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const SerializedStructuredCloneBuffer& buffer = aClonedData.data();
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typedef typename BlobTraits<Flavor>::ProtocolType ProtocolType;
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const InfallibleTArray<ProtocolType*>& blobs = DataBlobs<Flavor>::Blobs(aClonedData);
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const InfallibleTArray<MessagePortIdentifier>& identifiers = aClonedData.identfiers();
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aData.UseExternalData(buffer.data, buffer.dataLength);
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aData.PortIdentifiers().AppendElements(identifiers);
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if (!blobs.IsEmpty()) {
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uint32_t length = blobs.Length();
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aData.BlobImpls().SetCapacity(length);
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for (uint32_t i = 0; i < length; ++i) {
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auto* blob =
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static_cast<typename BlobTraits<Flavor>::BlobType*>(blobs[i]);
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MOZ_ASSERT(blob);
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RefPtr<BlobImpl> blobImpl = blob->GetBlobImpl();
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MOZ_ASSERT(blobImpl);
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aData.BlobImpls().AppendElement(blobImpl);
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}
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}
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}
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void
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mozilla::dom::ipc::UnpackClonedMessageDataForParent(const ClonedMessageData& aClonedData,
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StructuredCloneData& aData)
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{
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UnpackClonedMessageData<Parent>(aClonedData, aData);
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}
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void
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mozilla::dom::ipc::UnpackClonedMessageDataForChild(const ClonedMessageData& aClonedData,
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StructuredCloneData& aData)
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{
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UnpackClonedMessageData<Child>(aClonedData, aData);
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}
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bool
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SameProcessCpowHolder::ToObject(JSContext* aCx,
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JS::MutableHandle<JSObject*> aObjp)
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{
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if (!mObj) {
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return true;
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}
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aObjp.set(mObj);
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return JS_WrapObject(aCx, aObjp);
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}
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// nsIMessageListenerManager
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NS_IMETHODIMP
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nsFrameMessageManager::AddMessageListener(const nsAString& aMessage,
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nsIMessageListener* aListener,
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bool aListenWhenClosed)
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{
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nsAutoTObserverArray<nsMessageListenerInfo, 1>* listeners =
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mListeners.Get(aMessage);
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if (!listeners) {
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listeners = new nsAutoTObserverArray<nsMessageListenerInfo, 1>();
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mListeners.Put(aMessage, listeners);
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} else {
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uint32_t len = listeners->Length();
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for (uint32_t i = 0; i < len; ++i) {
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if (listeners->ElementAt(i).mStrongListener == aListener) {
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return NS_OK;
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}
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}
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}
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nsMessageListenerInfo* entry = listeners->AppendElement();
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NS_ENSURE_TRUE(entry, NS_ERROR_OUT_OF_MEMORY);
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entry->mStrongListener = aListener;
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entry->mListenWhenClosed = aListenWhenClosed;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFrameMessageManager::RemoveMessageListener(const nsAString& aMessage,
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nsIMessageListener* aListener)
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{
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nsAutoTObserverArray<nsMessageListenerInfo, 1>* listeners =
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mListeners.Get(aMessage);
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if (!listeners) {
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return NS_OK;
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}
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uint32_t len = listeners->Length();
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for (uint32_t i = 0; i < len; ++i) {
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if (listeners->ElementAt(i).mStrongListener == aListener) {
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listeners->RemoveElementAt(i);
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return NS_OK;
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFrameMessageManager::AddWeakMessageListener(const nsAString& aMessage,
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nsIMessageListener* aListener)
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{
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nsWeakPtr weak = do_GetWeakReference(aListener);
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NS_ENSURE_TRUE(weak, NS_ERROR_NO_INTERFACE);
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#ifdef DEBUG
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// It's technically possible that one object X could give two different
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// nsIWeakReference*'s when you do_GetWeakReference(X). We really don't want
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// this to happen; it will break e.g. RemoveWeakMessageListener. So let's
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// check that we're not getting ourselves into that situation.
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nsCOMPtr<nsISupports> canonical = do_QueryInterface(aListener);
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for (auto iter = mListeners.Iter(); !iter.Done(); iter.Next()) {
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nsAutoTObserverArray<nsMessageListenerInfo, 1>* listeners = iter.UserData();
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uint32_t count = listeners->Length();
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for (uint32_t i = 0; i < count; i++) {
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nsWeakPtr weakListener = listeners->ElementAt(i).mWeakListener;
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if (weakListener) {
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nsCOMPtr<nsISupports> otherCanonical = do_QueryReferent(weakListener);
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MOZ_ASSERT((canonical == otherCanonical) == (weak == weakListener));
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}
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}
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}
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#endif
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nsAutoTObserverArray<nsMessageListenerInfo, 1>* listeners =
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mListeners.Get(aMessage);
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if (!listeners) {
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listeners = new nsAutoTObserverArray<nsMessageListenerInfo, 1>();
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mListeners.Put(aMessage, listeners);
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} else {
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uint32_t len = listeners->Length();
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for (uint32_t i = 0; i < len; ++i) {
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if (listeners->ElementAt(i).mWeakListener == weak) {
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return NS_OK;
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}
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}
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}
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nsMessageListenerInfo* entry = listeners->AppendElement();
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entry->mWeakListener = weak;
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entry->mListenWhenClosed = false;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFrameMessageManager::RemoveWeakMessageListener(const nsAString& aMessage,
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nsIMessageListener* aListener)
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{
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nsWeakPtr weak = do_GetWeakReference(aListener);
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NS_ENSURE_TRUE(weak, NS_OK);
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nsAutoTObserverArray<nsMessageListenerInfo, 1>* listeners =
|
|
mListeners.Get(aMessage);
|
|
if (!listeners) {
|
|
return NS_OK;
|
|
}
|
|
|
|
uint32_t len = listeners->Length();
|
|
for (uint32_t i = 0; i < len; ++i) {
|
|
if (listeners->ElementAt(i).mWeakListener == weak) {
|
|
listeners->RemoveElementAt(i);
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// nsIFrameScriptLoader
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::LoadScript(const nsAString& aURL,
|
|
bool aAllowDelayedLoad,
|
|
bool aRunInGlobalScope)
|
|
{
|
|
if (aAllowDelayedLoad) {
|
|
// Cache for future windows or frames
|
|
mPendingScripts.AppendElement(aURL);
|
|
mPendingScriptsGlobalStates.AppendElement(aRunInGlobalScope);
|
|
}
|
|
|
|
if (mCallback) {
|
|
#ifdef DEBUG_smaug
|
|
printf("Will load %s \n", NS_ConvertUTF16toUTF8(aURL).get());
|
|
#endif
|
|
NS_ENSURE_TRUE(mCallback->DoLoadMessageManagerScript(aURL, aRunInGlobalScope),
|
|
NS_ERROR_FAILURE);
|
|
}
|
|
|
|
for (int32_t i = 0; i < mChildManagers.Count(); ++i) {
|
|
RefPtr<nsFrameMessageManager> mm =
|
|
static_cast<nsFrameMessageManager*>(mChildManagers[i]);
|
|
if (mm) {
|
|
// Use false here, so that child managers don't cache the script, which
|
|
// is already cached in the parent.
|
|
mm->LoadScript(aURL, false, aRunInGlobalScope);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::RemoveDelayedScript(const nsAString& aURL)
|
|
{
|
|
for (uint32_t i = 0; i < mPendingScripts.Length(); ++i) {
|
|
if (mPendingScripts[i] == aURL) {
|
|
mPendingScripts.RemoveElementAt(i);
|
|
mPendingScriptsGlobalStates.RemoveElementAt(i);
|
|
break;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::GetDelayedScripts(JSContext* aCx, JS::MutableHandle<JS::Value> aList)
|
|
{
|
|
// Frame message managers may return an incomplete list because scripts
|
|
// that were loaded after it was connected are not added to the list.
|
|
if (!IsGlobal() && !IsBroadcaster()) {
|
|
NS_WARNING("Cannot retrieve list of pending frame scripts for frame"
|
|
"message managers as it may be incomplete");
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
JS::Rooted<JSObject*> array(aCx, JS_NewArrayObject(aCx, mPendingScripts.Length()));
|
|
NS_ENSURE_TRUE(array, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
JS::Rooted<JSString*> url(aCx);
|
|
JS::Rooted<JSObject*> pair(aCx);
|
|
for (uint32_t i = 0; i < mPendingScripts.Length(); ++i) {
|
|
url = JS_NewUCStringCopyN(aCx, mPendingScripts[i].get(), mPendingScripts[i].Length());
|
|
NS_ENSURE_TRUE(url, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
JS::AutoValueArray<2> pairElts(aCx);
|
|
pairElts[0].setString(url);
|
|
pairElts[1].setBoolean(mPendingScriptsGlobalStates[i]);
|
|
|
|
pair = JS_NewArrayObject(aCx, pairElts);
|
|
NS_ENSURE_TRUE(pair, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
NS_ENSURE_TRUE(JS_DefineElement(aCx, array, i, pair, JSPROP_ENUMERATE),
|
|
NS_ERROR_OUT_OF_MEMORY);
|
|
}
|
|
|
|
aList.setObject(*array);
|
|
return NS_OK;
|
|
}
|
|
|
|
// nsIFrameScriptLoader
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::LoadFrameScript(const nsAString& aURL,
|
|
bool aAllowDelayedLoad,
|
|
bool aRunInGlobalScope)
|
|
{
|
|
return LoadScript(aURL, aAllowDelayedLoad, aRunInGlobalScope);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::RemoveDelayedFrameScript(const nsAString& aURL)
|
|
{
|
|
return RemoveDelayedScript(aURL);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::GetDelayedFrameScripts(JSContext* aCx, JS::MutableHandle<JS::Value> aList)
|
|
{
|
|
return GetDelayedScripts(aCx, aList);
|
|
}
|
|
|
|
// nsIProcessScriptLoader
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::LoadProcessScript(const nsAString& aURL,
|
|
bool aAllowDelayedLoad)
|
|
{
|
|
return LoadScript(aURL, aAllowDelayedLoad, false);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::RemoveDelayedProcessScript(const nsAString& aURL)
|
|
{
|
|
return RemoveDelayedScript(aURL);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::GetDelayedProcessScripts(JSContext* aCx, JS::MutableHandle<JS::Value> aList)
|
|
{
|
|
return GetDelayedScripts(aCx, aList);
|
|
}
|
|
|
|
static bool
|
|
JSONCreator(const char16_t* aBuf, uint32_t aLen, void* aData)
|
|
{
|
|
nsAString* result = static_cast<nsAString*>(aData);
|
|
result->Append(static_cast<const char16_t*>(aBuf),
|
|
static_cast<uint32_t>(aLen));
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
GetParamsForMessage(JSContext* aCx,
|
|
const JS::Value& aValue,
|
|
const JS::Value& aTransfer,
|
|
StructuredCloneData& aData)
|
|
{
|
|
// First try to use structured clone on the whole thing.
|
|
JS::RootedValue v(aCx, aValue);
|
|
JS::RootedValue t(aCx, aTransfer);
|
|
ErrorResult rv;
|
|
aData.Write(aCx, v, t, rv);
|
|
if (!rv.Failed()) {
|
|
return true;
|
|
}
|
|
|
|
rv.SuppressException();
|
|
JS_ClearPendingException(aCx);
|
|
|
|
nsCOMPtr<nsIConsoleService> console(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
|
|
if (console) {
|
|
nsAutoString filename;
|
|
uint32_t lineno = 0, column = 0;
|
|
nsJSUtils::GetCallingLocation(aCx, filename, &lineno, &column);
|
|
nsCOMPtr<nsIScriptError> error(do_CreateInstance(NS_SCRIPTERROR_CONTRACTID));
|
|
error->Init(NS_LITERAL_STRING("Sending message that cannot be cloned. Are you trying to send an XPCOM object?"),
|
|
filename, EmptyString(), lineno, column,
|
|
nsIScriptError::warningFlag, "chrome javascript");
|
|
console->LogMessage(error);
|
|
}
|
|
|
|
// Not clonable, try JSON
|
|
//XXX This is ugly but currently structured cloning doesn't handle
|
|
// properly cases when interface is implemented in JS and used
|
|
// as a dictionary.
|
|
nsAutoString json;
|
|
NS_ENSURE_TRUE(JS_Stringify(aCx, &v, nullptr, JS::NullHandleValue,
|
|
JSONCreator, &json), false);
|
|
NS_ENSURE_TRUE(!json.IsEmpty(), false);
|
|
|
|
JS::Rooted<JS::Value> val(aCx, JS::NullValue());
|
|
NS_ENSURE_TRUE(JS_ParseJSON(aCx, static_cast<const char16_t*>(json.get()),
|
|
json.Length(), &val), false);
|
|
|
|
aData.Write(aCx, val, rv);
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
rv.SuppressException();
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// nsISyncMessageSender
|
|
|
|
static bool sSendingSyncMessage = false;
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::SendSyncMessage(const nsAString& aMessageName,
|
|
JS::Handle<JS::Value> aJSON,
|
|
JS::Handle<JS::Value> aObjects,
|
|
nsIPrincipal* aPrincipal,
|
|
JSContext* aCx,
|
|
uint8_t aArgc,
|
|
JS::MutableHandle<JS::Value> aRetval)
|
|
{
|
|
return SendMessage(aMessageName, aJSON, aObjects, aPrincipal, aCx, aArgc,
|
|
aRetval, true);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::SendRpcMessage(const nsAString& aMessageName,
|
|
JS::Handle<JS::Value> aJSON,
|
|
JS::Handle<JS::Value> aObjects,
|
|
nsIPrincipal* aPrincipal,
|
|
JSContext* aCx,
|
|
uint8_t aArgc,
|
|
JS::MutableHandle<JS::Value> aRetval)
|
|
{
|
|
return SendMessage(aMessageName, aJSON, aObjects, aPrincipal, aCx, aArgc,
|
|
aRetval, false);
|
|
}
|
|
|
|
static void
|
|
RecordMessageSize(size_t aDataLength, const nsAString& aMessageName)
|
|
{
|
|
static const size_t kMinTelemetryMessageSize = 8192;
|
|
|
|
if (aDataLength < kMinTelemetryMessageSize) {
|
|
return;
|
|
}
|
|
|
|
NS_ConvertUTF16toUTF8 messageName(aMessageName);
|
|
messageName.StripChars("0123456789");
|
|
|
|
Telemetry::Accumulate(Telemetry::MESSAGE_MANAGER_MESSAGE_SIZE2, messageName,
|
|
aDataLength);
|
|
}
|
|
|
|
nsresult
|
|
nsFrameMessageManager::SendMessage(const nsAString& aMessageName,
|
|
JS::Handle<JS::Value> aJSON,
|
|
JS::Handle<JS::Value> aObjects,
|
|
nsIPrincipal* aPrincipal,
|
|
JSContext* aCx,
|
|
uint8_t aArgc,
|
|
JS::MutableHandle<JS::Value> aRetval,
|
|
bool aIsSync)
|
|
{
|
|
NS_ASSERTION(!IsGlobal(), "Should not call SendSyncMessage in chrome");
|
|
NS_ASSERTION(!IsBroadcaster(), "Should not call SendSyncMessage in chrome");
|
|
NS_ASSERTION(!mParentManager, "Should not have parent manager in content!");
|
|
|
|
aRetval.setUndefined();
|
|
NS_ENSURE_TRUE(mCallback, NS_ERROR_NOT_INITIALIZED);
|
|
|
|
if (sSendingSyncMessage && aIsSync) {
|
|
// No kind of blocking send should be issued on top of a sync message.
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
StructuredCloneData data;
|
|
if (aArgc >= 2 && !GetParamsForMessage(aCx, aJSON, JS::UndefinedHandleValue, data)) {
|
|
return NS_ERROR_DOM_DATA_CLONE_ERR;
|
|
}
|
|
|
|
RecordMessageSize(data.DataLength(), aMessageName);
|
|
|
|
JS::Rooted<JSObject*> objects(aCx);
|
|
if (aArgc >= 3 && aObjects.isObject()) {
|
|
objects = &aObjects.toObject();
|
|
}
|
|
|
|
nsTArray<StructuredCloneData> retval;
|
|
|
|
sSendingSyncMessage |= aIsSync;
|
|
bool ok = mCallback->DoSendBlockingMessage(aCx, aMessageName, data, objects,
|
|
aPrincipal, &retval, aIsSync);
|
|
if (aIsSync) {
|
|
sSendingSyncMessage = false;
|
|
}
|
|
|
|
if (!ok) {
|
|
return NS_OK;
|
|
}
|
|
|
|
uint32_t len = retval.Length();
|
|
JS::Rooted<JSObject*> dataArray(aCx, JS_NewArrayObject(aCx, len));
|
|
NS_ENSURE_TRUE(dataArray, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
for (uint32_t i = 0; i < len; ++i) {
|
|
JS::Rooted<JS::Value> ret(aCx);
|
|
ErrorResult rv;
|
|
retval[i].Read(aCx, &ret, rv);
|
|
if (rv.Failed()) {
|
|
MOZ_ASSERT(false, "Unable to read structured clone in SendMessage");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
NS_ENSURE_TRUE(JS_DefineElement(aCx, dataArray, i, ret, JSPROP_ENUMERATE),
|
|
NS_ERROR_OUT_OF_MEMORY);
|
|
}
|
|
|
|
aRetval.setObject(*dataArray);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsFrameMessageManager::DispatchAsyncMessageInternal(JSContext* aCx,
|
|
const nsAString& aMessage,
|
|
StructuredCloneData& aData,
|
|
JS::Handle<JSObject *> aCpows,
|
|
nsIPrincipal* aPrincipal)
|
|
{
|
|
if (mIsBroadcaster) {
|
|
int32_t len = mChildManagers.Count();
|
|
for (int32_t i = 0; i < len; ++i) {
|
|
static_cast<nsFrameMessageManager*>(mChildManagers[i])->
|
|
DispatchAsyncMessageInternal(aCx, aMessage, aData, aCpows, aPrincipal);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!mCallback) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
nsresult rv = mCallback->DoSendAsyncMessage(aCx, aMessage, aData, aCpows, aPrincipal);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsFrameMessageManager::DispatchAsyncMessage(const nsAString& aMessageName,
|
|
const JS::Value& aJSON,
|
|
const JS::Value& aObjects,
|
|
nsIPrincipal* aPrincipal,
|
|
const JS::Value& aTransfers,
|
|
JSContext* aCx,
|
|
uint8_t aArgc)
|
|
{
|
|
StructuredCloneData data;
|
|
if (aArgc >= 2 && !GetParamsForMessage(aCx, aJSON, aTransfers, data)) {
|
|
return NS_ERROR_DOM_DATA_CLONE_ERR;
|
|
}
|
|
|
|
RecordMessageSize(data.DataLength(), aMessageName);
|
|
|
|
JS::Rooted<JSObject*> objects(aCx);
|
|
if (aArgc >= 3 && aObjects.isObject()) {
|
|
objects = &aObjects.toObject();
|
|
}
|
|
|
|
return DispatchAsyncMessageInternal(aCx, aMessageName, data, objects,
|
|
aPrincipal);
|
|
}
|
|
|
|
// nsIMessageSender
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::SendAsyncMessage(const nsAString& aMessageName,
|
|
JS::Handle<JS::Value> aJSON,
|
|
JS::Handle<JS::Value> aObjects,
|
|
nsIPrincipal* aPrincipal,
|
|
JS::Handle<JS::Value> aTransfers,
|
|
JSContext* aCx,
|
|
uint8_t aArgc)
|
|
{
|
|
return DispatchAsyncMessage(aMessageName, aJSON, aObjects, aPrincipal,
|
|
aTransfers, aCx, aArgc);
|
|
}
|
|
|
|
|
|
// nsIMessageBroadcaster
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::BroadcastAsyncMessage(const nsAString& aMessageName,
|
|
JS::Handle<JS::Value> aJSON,
|
|
JS::Handle<JS::Value> aObjects,
|
|
JSContext* aCx,
|
|
uint8_t aArgc)
|
|
{
|
|
return DispatchAsyncMessage(aMessageName, aJSON, aObjects, nullptr,
|
|
JS::UndefinedHandleValue, aCx, aArgc);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::GetChildCount(uint32_t* aChildCount)
|
|
{
|
|
*aChildCount = static_cast<uint32_t>(mChildManagers.Count());
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::GetChildAt(uint32_t aIndex,
|
|
nsIMessageListenerManager** aMM)
|
|
{
|
|
*aMM = nullptr;
|
|
nsCOMPtr<nsIMessageListenerManager> mm =
|
|
do_QueryInterface(mChildManagers.SafeObjectAt(static_cast<uint32_t>(aIndex)));
|
|
mm.swap(*aMM);
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
// nsIContentFrameMessageManager
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::Dump(const nsAString& aStr)
|
|
{
|
|
#ifdef ANDROID
|
|
__android_log_print(ANDROID_LOG_INFO, "Gecko", "%s", NS_ConvertUTF16toUTF8(aStr).get());
|
|
#endif
|
|
#ifdef XP_WIN
|
|
if (IsDebuggerPresent()) {
|
|
OutputDebugStringW(PromiseFlatString(aStr).get());
|
|
}
|
|
#endif
|
|
fputs(NS_ConvertUTF16toUTF8(aStr).get(), stdout);
|
|
fflush(stdout);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::PrivateNoteIntentionalCrash()
|
|
{
|
|
if (XRE_IsContentProcess()) {
|
|
mozilla::NoteIntentionalCrash("tab");
|
|
return NS_OK;
|
|
} else {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::GetContent(mozIDOMWindowProxy** aContent)
|
|
{
|
|
*aContent = nullptr;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::GetDocShell(nsIDocShell** aDocShell)
|
|
{
|
|
*aDocShell = nullptr;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::Btoa(const nsAString& aBinaryData,
|
|
nsAString& aAsciiBase64String)
|
|
{
|
|
return nsContentUtils::Btoa(aBinaryData, aAsciiBase64String);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::Atob(const nsAString& aAsciiString,
|
|
nsAString& aBinaryData)
|
|
{
|
|
return nsContentUtils::Atob(aAsciiString, aBinaryData);
|
|
}
|
|
|
|
// nsIProcessChecker
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::KillChild(bool *aValid)
|
|
{
|
|
if (!mCallback) {
|
|
*aValid = false;
|
|
return NS_ERROR_NOT_AVAILABLE;
|
|
}
|
|
|
|
*aValid = mCallback->KillChild();
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsFrameMessageManager::AssertProcessInternal(ProcessCheckerType aType,
|
|
const nsAString& aCapability,
|
|
bool* aValid)
|
|
{
|
|
*aValid = false;
|
|
|
|
// This API is only supported for message senders in the chrome process.
|
|
if (!mChrome || mIsBroadcaster) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
if (!mCallback) {
|
|
return NS_ERROR_NOT_AVAILABLE;
|
|
}
|
|
switch (aType) {
|
|
case PROCESS_CHECKER_PERMISSION:
|
|
*aValid = mCallback->CheckPermission(aCapability);
|
|
break;
|
|
case PROCESS_CHECKER_MANIFEST_URL:
|
|
*aValid = mCallback->CheckManifestURL(aCapability);
|
|
break;
|
|
case ASSERT_APP_HAS_PERMISSION:
|
|
*aValid = mCallback->CheckAppHasPermission(aCapability);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::AssertPermission(const nsAString& aPermission,
|
|
bool* aHasPermission)
|
|
{
|
|
return AssertProcessInternal(PROCESS_CHECKER_PERMISSION,
|
|
aPermission,
|
|
aHasPermission);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::AssertContainApp(const nsAString& aManifestURL,
|
|
bool* aHasManifestURL)
|
|
{
|
|
return AssertProcessInternal(PROCESS_CHECKER_MANIFEST_URL,
|
|
aManifestURL,
|
|
aHasManifestURL);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::AssertAppHasPermission(const nsAString& aPermission,
|
|
bool* aHasPermission)
|
|
{
|
|
return AssertProcessInternal(ASSERT_APP_HAS_PERMISSION,
|
|
aPermission,
|
|
aHasPermission);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::AssertAppHasStatus(unsigned short aStatus,
|
|
bool* aHasStatus)
|
|
{
|
|
*aHasStatus = false;
|
|
|
|
// This API is only supported for message senders in the chrome process.
|
|
if (!mChrome || mIsBroadcaster) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
if (!mCallback) {
|
|
return NS_ERROR_NOT_AVAILABLE;
|
|
}
|
|
*aHasStatus = mCallback->CheckAppHasStatus(aStatus);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
class MMListenerRemover
|
|
{
|
|
public:
|
|
explicit MMListenerRemover(nsFrameMessageManager* aMM)
|
|
: mWasHandlingMessage(aMM->mHandlingMessage)
|
|
, mMM(aMM)
|
|
{
|
|
mMM->mHandlingMessage = true;
|
|
}
|
|
~MMListenerRemover()
|
|
{
|
|
if (!mWasHandlingMessage) {
|
|
mMM->mHandlingMessage = false;
|
|
if (mMM->mDisconnected) {
|
|
mMM->mListeners.Clear();
|
|
}
|
|
}
|
|
}
|
|
|
|
bool mWasHandlingMessage;
|
|
RefPtr<nsFrameMessageManager> mMM;
|
|
};
|
|
|
|
|
|
// nsIMessageListener
|
|
|
|
nsresult
|
|
nsFrameMessageManager::ReceiveMessage(nsISupports* aTarget,
|
|
nsIFrameLoader* aTargetFrameLoader,
|
|
const nsAString& aMessage,
|
|
bool aIsSync,
|
|
StructuredCloneData* aCloneData,
|
|
mozilla::jsipc::CpowHolder* aCpows,
|
|
nsIPrincipal* aPrincipal,
|
|
nsTArray<StructuredCloneData>* aRetVal)
|
|
{
|
|
return ReceiveMessage(aTarget, aTargetFrameLoader, mClosed, aMessage, aIsSync,
|
|
aCloneData, aCpows, aPrincipal, aRetVal);
|
|
}
|
|
|
|
nsresult
|
|
nsFrameMessageManager::ReceiveMessage(nsISupports* aTarget,
|
|
nsIFrameLoader* aTargetFrameLoader,
|
|
bool aTargetClosed,
|
|
const nsAString& aMessage,
|
|
bool aIsSync,
|
|
StructuredCloneData* aCloneData,
|
|
mozilla::jsipc::CpowHolder* aCpows,
|
|
nsIPrincipal* aPrincipal,
|
|
nsTArray<StructuredCloneData>* aRetVal)
|
|
{
|
|
nsAutoTObserverArray<nsMessageListenerInfo, 1>* listeners =
|
|
mListeners.Get(aMessage);
|
|
if (listeners) {
|
|
|
|
MMListenerRemover lr(this);
|
|
|
|
nsAutoTObserverArray<nsMessageListenerInfo, 1>::EndLimitedIterator
|
|
iter(*listeners);
|
|
while(iter.HasMore()) {
|
|
nsMessageListenerInfo& listener = iter.GetNext();
|
|
// Remove mListeners[i] if it's an expired weak listener.
|
|
nsCOMPtr<nsISupports> weakListener;
|
|
if (listener.mWeakListener) {
|
|
weakListener = do_QueryReferent(listener.mWeakListener);
|
|
if (!weakListener) {
|
|
listeners->RemoveElement(listener);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (!listener.mListenWhenClosed && aTargetClosed) {
|
|
continue;
|
|
}
|
|
|
|
nsCOMPtr<nsIXPConnectWrappedJS> wrappedJS;
|
|
if (weakListener) {
|
|
wrappedJS = do_QueryInterface(weakListener);
|
|
} else {
|
|
wrappedJS = do_QueryInterface(listener.mStrongListener);
|
|
}
|
|
|
|
if (!wrappedJS) {
|
|
continue;
|
|
}
|
|
|
|
if (!wrappedJS->GetJSObject()) {
|
|
continue;
|
|
}
|
|
|
|
AutoEntryScript aes(wrappedJS->GetJSObject(), "message manager handler");
|
|
JSContext* cx = aes.cx();
|
|
JS::Rooted<JSObject*> object(cx, wrappedJS->GetJSObject());
|
|
|
|
// The parameter for the listener function.
|
|
JS::Rooted<JSObject*> param(cx, JS_NewPlainObject(cx));
|
|
NS_ENSURE_TRUE(param, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
JS::Rooted<JS::Value> targetv(cx);
|
|
js::AssertSameCompartment(cx, object);
|
|
nsresult rv = nsContentUtils::WrapNative(cx, aTarget, &targetv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
JS::Rooted<JSObject*> cpows(cx);
|
|
if (aCpows) {
|
|
if (!aCpows->ToObject(cx, &cpows)) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
}
|
|
|
|
if (!cpows) {
|
|
cpows = JS_NewPlainObject(cx);
|
|
if (!cpows) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
}
|
|
|
|
JS::Rooted<JS::Value> cpowsv(cx, JS::ObjectValue(*cpows));
|
|
|
|
JS::Rooted<JS::Value> json(cx, JS::NullValue());
|
|
if (aCloneData && aCloneData->DataLength()) {
|
|
ErrorResult rv;
|
|
aCloneData->Read(cx, &json, rv);
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
rv.SuppressException();
|
|
JS_ClearPendingException(cx);
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
// Get cloned MessagePort from StructuredCloneData.
|
|
nsTArray<RefPtr<mozilla::dom::MessagePort>> ports;
|
|
if (aCloneData) {
|
|
ports = aCloneData->TakeTransferredPorts();
|
|
}
|
|
|
|
JS::Rooted<JSObject*> transferredList(cx);
|
|
RefPtr<MessagePortList> portList = new MessagePortList(aTargetFrameLoader, ports);
|
|
transferredList = portList->WrapObject(cx, nullptr);
|
|
if (NS_WARN_IF(!transferredList)) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
JS::Rooted<JSString*> jsMessage(cx,
|
|
JS_NewUCStringCopyN(cx,
|
|
static_cast<const char16_t*>(aMessage.BeginReading()),
|
|
aMessage.Length()));
|
|
NS_ENSURE_TRUE(jsMessage, NS_ERROR_OUT_OF_MEMORY);
|
|
JS::Rooted<JS::Value> syncv(cx, JS::BooleanValue(aIsSync));
|
|
bool ok = JS_DefineProperty(cx, param, "target", targetv, JSPROP_ENUMERATE) &&
|
|
JS_DefineProperty(cx, param, "name", jsMessage, JSPROP_ENUMERATE) &&
|
|
JS_DefineProperty(cx, param, "sync", syncv, JSPROP_ENUMERATE) &&
|
|
JS_DefineProperty(cx, param, "json", json, JSPROP_ENUMERATE) && // deprecated
|
|
JS_DefineProperty(cx, param, "data", json, JSPROP_ENUMERATE) &&
|
|
JS_DefineProperty(cx, param, "objects", cpowsv, JSPROP_ENUMERATE) &&
|
|
JS_DefineProperty(cx, param, "ports", transferredList, JSPROP_ENUMERATE);
|
|
|
|
NS_ENSURE_TRUE(ok, NS_ERROR_UNEXPECTED);
|
|
|
|
if (aTargetFrameLoader) {
|
|
JS::Rooted<JS::Value> targetFrameLoaderv(cx);
|
|
nsresult rv = nsContentUtils::WrapNative(cx, aTargetFrameLoader, &targetFrameLoaderv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
ok = JS_DefineProperty(cx, param, "targetFrameLoader", targetFrameLoaderv,
|
|
JSPROP_ENUMERATE);
|
|
NS_ENSURE_TRUE(ok, NS_ERROR_UNEXPECTED);
|
|
}
|
|
|
|
// message.principal == null
|
|
if (!aPrincipal) {
|
|
bool ok = JS_DefineProperty(cx, param, "principal",
|
|
JS::UndefinedHandleValue, JSPROP_ENUMERATE);
|
|
NS_ENSURE_TRUE(ok, NS_ERROR_UNEXPECTED);
|
|
}
|
|
|
|
// message.principal = the principal
|
|
else {
|
|
JS::Rooted<JS::Value> principalValue(cx);
|
|
nsresult rv = nsContentUtils::WrapNative(cx, aPrincipal,
|
|
&NS_GET_IID(nsIPrincipal),
|
|
&principalValue);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
bool ok = JS_DefineProperty(cx, param, "principal", principalValue,
|
|
JSPROP_ENUMERATE);
|
|
NS_ENSURE_TRUE(ok, NS_ERROR_UNEXPECTED);
|
|
}
|
|
|
|
JS::Rooted<JS::Value> thisValue(cx, JS::UndefinedValue());
|
|
|
|
JS::Rooted<JS::Value> funval(cx);
|
|
if (JS::IsCallable(object)) {
|
|
// If the listener is a JS function:
|
|
funval.setObject(*object);
|
|
|
|
// A small hack to get 'this' value right on content side where
|
|
// messageManager is wrapped in TabChildGlobal.
|
|
nsCOMPtr<nsISupports> defaultThisValue;
|
|
if (mChrome) {
|
|
defaultThisValue = do_QueryObject(this);
|
|
} else {
|
|
defaultThisValue = aTarget;
|
|
}
|
|
js::AssertSameCompartment(cx, object);
|
|
nsresult rv = nsContentUtils::WrapNative(cx, defaultThisValue, &thisValue);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
} else {
|
|
// If the listener is a JS object which has receiveMessage function:
|
|
if (!JS_GetProperty(cx, object, "receiveMessage", &funval) ||
|
|
!funval.isObject()) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
// Check if the object is even callable.
|
|
NS_ENSURE_STATE(JS::IsCallable(&funval.toObject()));
|
|
thisValue.setObject(*object);
|
|
}
|
|
|
|
JS::Rooted<JS::Value> rval(cx, JS::UndefinedValue());
|
|
JS::Rooted<JS::Value> argv(cx, JS::ObjectValue(*param));
|
|
|
|
{
|
|
JS::Rooted<JSObject*> thisObject(cx, thisValue.toObjectOrNull());
|
|
|
|
JSAutoCompartment tac(cx, thisObject);
|
|
if (!JS_WrapValue(cx, &argv)) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
if (!JS_CallFunctionValue(cx, thisObject, funval,
|
|
JS::HandleValueArray(argv), &rval)) {
|
|
continue;
|
|
}
|
|
if (aRetVal) {
|
|
ErrorResult rv;
|
|
StructuredCloneData* data = aRetVal->AppendElement();
|
|
data->Write(cx, rval, rv);
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
aRetVal->RemoveElementAt(aRetVal->Length() - 1);
|
|
nsString msg = aMessage + NS_LITERAL_STRING(": message reply cannot be cloned. Are you trying to send an XPCOM object?");
|
|
|
|
nsCOMPtr<nsIConsoleService> console(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
|
|
if (console) {
|
|
nsCOMPtr<nsIScriptError> error(do_CreateInstance(NS_SCRIPTERROR_CONTRACTID));
|
|
error->Init(msg, EmptyString(), EmptyString(),
|
|
0, 0, nsIScriptError::warningFlag, "chrome javascript");
|
|
console->LogMessage(error);
|
|
}
|
|
|
|
JS_ClearPendingException(cx);
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
RefPtr<nsFrameMessageManager> kungfuDeathGrip = mParentManager;
|
|
return mParentManager ? mParentManager->ReceiveMessage(aTarget, aTargetFrameLoader,
|
|
aTargetClosed, aMessage,
|
|
aIsSync, aCloneData,
|
|
aCpows, aPrincipal,
|
|
aRetVal) : NS_OK;
|
|
}
|
|
|
|
void
|
|
nsFrameMessageManager::AddChildManager(nsFrameMessageManager* aManager)
|
|
{
|
|
mChildManagers.AppendObject(aManager);
|
|
|
|
RefPtr<nsFrameMessageManager> kungfuDeathGrip = this;
|
|
RefPtr<nsFrameMessageManager> kungfuDeathGrip2 = aManager;
|
|
|
|
LoadPendingScripts(this, aManager);
|
|
}
|
|
|
|
void
|
|
nsFrameMessageManager::LoadPendingScripts(nsFrameMessageManager* aManager,
|
|
nsFrameMessageManager* aChildMM)
|
|
{
|
|
// We have parent manager if we're a message broadcaster.
|
|
// In that case we want to load the pending scripts from all parent
|
|
// message managers in the hierarchy. Process the parent first so
|
|
// that pending scripts higher up in the hierarchy are loaded before others.
|
|
if (aManager->mParentManager) {
|
|
LoadPendingScripts(aManager->mParentManager, aChildMM);
|
|
}
|
|
|
|
for (uint32_t i = 0; i < aManager->mPendingScripts.Length(); ++i) {
|
|
aChildMM->LoadFrameScript(aManager->mPendingScripts[i],
|
|
false,
|
|
aManager->mPendingScriptsGlobalStates[i]);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsFrameMessageManager::LoadPendingScripts()
|
|
{
|
|
RefPtr<nsFrameMessageManager> kungfuDeathGrip = this;
|
|
LoadPendingScripts(this, this);
|
|
}
|
|
|
|
void
|
|
nsFrameMessageManager::SetCallback(MessageManagerCallback* aCallback)
|
|
{
|
|
MOZ_ASSERT(!mIsBroadcaster || !mCallback,
|
|
"Broadcasters cannot have callbacks!");
|
|
if (aCallback && mCallback != aCallback) {
|
|
mCallback = aCallback;
|
|
if (mOwnsCallback) {
|
|
mOwnedCallback = aCallback;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsFrameMessageManager::InitWithCallback(MessageManagerCallback* aCallback)
|
|
{
|
|
if (mCallback) {
|
|
// Initialization should only happen once.
|
|
return;
|
|
}
|
|
|
|
SetCallback(aCallback);
|
|
|
|
// First load parent scripts by adding this to parent manager.
|
|
if (mParentManager) {
|
|
mParentManager->AddChildManager(this);
|
|
}
|
|
|
|
for (uint32_t i = 0; i < mPendingScripts.Length(); ++i) {
|
|
LoadFrameScript(mPendingScripts[i], false, mPendingScriptsGlobalStates[i]);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsFrameMessageManager::RemoveFromParent()
|
|
{
|
|
if (mParentManager) {
|
|
mParentManager->RemoveChildManager(this);
|
|
}
|
|
mParentManager = nullptr;
|
|
mCallback = nullptr;
|
|
mOwnedCallback = nullptr;
|
|
}
|
|
|
|
void
|
|
nsFrameMessageManager::Close()
|
|
{
|
|
if (!mClosed) {
|
|
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
|
|
if (obs) {
|
|
obs->NotifyObservers(NS_ISUPPORTS_CAST(nsIContentFrameMessageManager*, this),
|
|
"message-manager-close", nullptr);
|
|
}
|
|
}
|
|
mClosed = true;
|
|
mCallback = nullptr;
|
|
mOwnedCallback = nullptr;
|
|
}
|
|
|
|
void
|
|
nsFrameMessageManager::Disconnect(bool aRemoveFromParent)
|
|
{
|
|
// Notify message-manager-close if we haven't already.
|
|
Close();
|
|
|
|
if (!mDisconnected) {
|
|
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
|
|
if (obs) {
|
|
obs->NotifyObservers(NS_ISUPPORTS_CAST(nsIContentFrameMessageManager*, this),
|
|
"message-manager-disconnect", nullptr);
|
|
}
|
|
}
|
|
if (mParentManager && aRemoveFromParent) {
|
|
mParentManager->RemoveChildManager(this);
|
|
}
|
|
mDisconnected = true;
|
|
mParentManager = nullptr;
|
|
if (!mHandlingMessage) {
|
|
mListeners.Clear();
|
|
}
|
|
}
|
|
|
|
void
|
|
nsFrameMessageManager::SetInitialProcessData(JS::HandleValue aInitialData)
|
|
{
|
|
MOZ_ASSERT(!mChrome);
|
|
MOZ_ASSERT(mIsProcessManager);
|
|
mInitialProcessData = aInitialData;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFrameMessageManager::GetInitialProcessData(JSContext* aCx, JS::MutableHandleValue aResult)
|
|
{
|
|
MOZ_ASSERT(mIsProcessManager);
|
|
MOZ_ASSERT_IF(mChrome, IsBroadcaster());
|
|
|
|
JS::RootedValue init(aCx, mInitialProcessData);
|
|
if (mChrome && init.isUndefined()) {
|
|
// We create the initial object in the junk scope. If we created it in a
|
|
// normal compartment, that compartment would leak until shutdown.
|
|
JS::RootedObject global(aCx, xpc::PrivilegedJunkScope());
|
|
JSAutoCompartment ac(aCx, global);
|
|
|
|
JS::RootedObject obj(aCx, JS_NewPlainObject(aCx));
|
|
if (!obj) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
mInitialProcessData.setObject(*obj);
|
|
init.setObject(*obj);
|
|
}
|
|
|
|
if (!mChrome && XRE_IsParentProcess()) {
|
|
// This is the cpmm in the parent process. We should use the same object as the ppmm.
|
|
nsCOMPtr<nsIGlobalProcessScriptLoader> ppmm =
|
|
do_GetService("@mozilla.org/parentprocessmessagemanager;1");
|
|
ppmm->GetInitialProcessData(aCx, &init);
|
|
mInitialProcessData = init;
|
|
}
|
|
|
|
if (!JS_WrapValue(aCx, &init)) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
aResult.set(init);
|
|
return NS_OK;
|
|
}
|
|
|
|
namespace {
|
|
|
|
struct MessageManagerReferentCount
|
|
{
|
|
MessageManagerReferentCount() : mStrong(0), mWeakAlive(0), mWeakDead(0) {}
|
|
size_t mStrong;
|
|
size_t mWeakAlive;
|
|
size_t mWeakDead;
|
|
nsTArray<nsString> mSuspectMessages;
|
|
nsDataHashtable<nsStringHashKey, uint32_t> mMessageCounter;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
class MessageManagerReporter final : public nsIMemoryReporter
|
|
{
|
|
~MessageManagerReporter() {}
|
|
|
|
public:
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSIMEMORYREPORTER
|
|
|
|
static const size_t kSuspectReferentCount = 300;
|
|
protected:
|
|
void CountReferents(nsFrameMessageManager* aMessageManager,
|
|
MessageManagerReferentCount* aReferentCount);
|
|
};
|
|
|
|
NS_IMPL_ISUPPORTS(MessageManagerReporter, nsIMemoryReporter)
|
|
|
|
void
|
|
MessageManagerReporter::CountReferents(nsFrameMessageManager* aMessageManager,
|
|
MessageManagerReferentCount* aReferentCount)
|
|
{
|
|
for (auto it = aMessageManager->mListeners.Iter(); !it.Done(); it.Next()) {
|
|
nsAutoTObserverArray<nsMessageListenerInfo, 1>* listeners =
|
|
it.UserData();
|
|
uint32_t listenerCount = listeners->Length();
|
|
if (listenerCount == 0) {
|
|
continue;
|
|
}
|
|
|
|
nsString key(it.Key());
|
|
uint32_t oldCount = 0;
|
|
aReferentCount->mMessageCounter.Get(key, &oldCount);
|
|
uint32_t currentCount = oldCount + listenerCount;
|
|
aReferentCount->mMessageCounter.Put(key, currentCount);
|
|
|
|
// Keep track of messages that have a suspiciously large
|
|
// number of referents (symptom of leak).
|
|
if (currentCount == MessageManagerReporter::kSuspectReferentCount) {
|
|
aReferentCount->mSuspectMessages.AppendElement(key);
|
|
}
|
|
|
|
for (uint32_t i = 0; i < listenerCount; ++i) {
|
|
const nsMessageListenerInfo& listenerInfo = listeners->ElementAt(i);
|
|
if (listenerInfo.mWeakListener) {
|
|
nsCOMPtr<nsISupports> referent =
|
|
do_QueryReferent(listenerInfo.mWeakListener);
|
|
if (referent) {
|
|
aReferentCount->mWeakAlive++;
|
|
} else {
|
|
aReferentCount->mWeakDead++;
|
|
}
|
|
} else {
|
|
aReferentCount->mStrong++;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Add referent count in child managers because the listeners
|
|
// participate in messages dispatched from parent message manager.
|
|
for (uint32_t i = 0; i < aMessageManager->mChildManagers.Length(); ++i) {
|
|
RefPtr<nsFrameMessageManager> mm =
|
|
static_cast<nsFrameMessageManager*>(aMessageManager->mChildManagers[i]);
|
|
CountReferents(mm, aReferentCount);
|
|
}
|
|
}
|
|
|
|
static nsresult
|
|
ReportReferentCount(const char* aManagerType,
|
|
const MessageManagerReferentCount& aReferentCount,
|
|
nsIMemoryReporterCallback* aCb,
|
|
nsISupports* aClosure)
|
|
{
|
|
#define REPORT(_path, _amount, _desc) \
|
|
do { \
|
|
nsresult rv; \
|
|
rv = aCb->Callback(EmptyCString(), _path, \
|
|
nsIMemoryReporter::KIND_OTHER, \
|
|
nsIMemoryReporter::UNITS_COUNT, _amount, \
|
|
_desc, aClosure); \
|
|
NS_ENSURE_SUCCESS(rv, rv); \
|
|
} while (0)
|
|
|
|
REPORT(nsPrintfCString("message-manager/referent/%s/strong", aManagerType),
|
|
aReferentCount.mStrong,
|
|
nsPrintfCString("The number of strong referents held by the message "
|
|
"manager in the %s manager.", aManagerType));
|
|
REPORT(nsPrintfCString("message-manager/referent/%s/weak/alive", aManagerType),
|
|
aReferentCount.mWeakAlive,
|
|
nsPrintfCString("The number of weak referents that are still alive "
|
|
"held by the message manager in the %s manager.",
|
|
aManagerType));
|
|
REPORT(nsPrintfCString("message-manager/referent/%s/weak/dead", aManagerType),
|
|
aReferentCount.mWeakDead,
|
|
nsPrintfCString("The number of weak referents that are dead "
|
|
"held by the message manager in the %s manager.",
|
|
aManagerType));
|
|
|
|
for (uint32_t i = 0; i < aReferentCount.mSuspectMessages.Length(); i++) {
|
|
uint32_t totalReferentCount = 0;
|
|
aReferentCount.mMessageCounter.Get(aReferentCount.mSuspectMessages[i],
|
|
&totalReferentCount);
|
|
NS_ConvertUTF16toUTF8 suspect(aReferentCount.mSuspectMessages[i]);
|
|
REPORT(nsPrintfCString("message-manager-suspect/%s/referent(message=%s)",
|
|
aManagerType, suspect.get()), totalReferentCount,
|
|
nsPrintfCString("A message in the %s message manager with a "
|
|
"suspiciously large number of referents (symptom "
|
|
"of a leak).", aManagerType));
|
|
}
|
|
|
|
#undef REPORT
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
MessageManagerReporter::CollectReports(nsIMemoryReporterCallback* aCb,
|
|
nsISupports* aClosure, bool aAnonymize)
|
|
{
|
|
nsresult rv;
|
|
|
|
if (XRE_IsParentProcess()) {
|
|
nsCOMPtr<nsIMessageBroadcaster> globalmm =
|
|
do_GetService("@mozilla.org/globalmessagemanager;1");
|
|
if (globalmm) {
|
|
RefPtr<nsFrameMessageManager> mm =
|
|
static_cast<nsFrameMessageManager*>(globalmm.get());
|
|
MessageManagerReferentCount count;
|
|
CountReferents(mm, &count);
|
|
rv = ReportReferentCount("global-manager", count, aCb, aClosure);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
}
|
|
|
|
if (nsFrameMessageManager::sParentProcessManager) {
|
|
MessageManagerReferentCount count;
|
|
CountReferents(nsFrameMessageManager::sParentProcessManager, &count);
|
|
rv = ReportReferentCount("parent-process-manager", count, aCb, aClosure);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
if (nsFrameMessageManager::sChildProcessManager) {
|
|
MessageManagerReferentCount count;
|
|
CountReferents(nsFrameMessageManager::sChildProcessManager, &count);
|
|
rv = ReportReferentCount("child-process-manager", count, aCb, aClosure);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
nsresult
|
|
NS_NewGlobalMessageManager(nsIMessageBroadcaster** aResult)
|
|
{
|
|
NS_ENSURE_TRUE(XRE_IsParentProcess(),
|
|
NS_ERROR_NOT_AVAILABLE);
|
|
RefPtr<nsFrameMessageManager> mm = new nsFrameMessageManager(nullptr,
|
|
nullptr,
|
|
MM_CHROME | MM_GLOBAL | MM_BROADCASTER);
|
|
RegisterStrongMemoryReporter(new MessageManagerReporter());
|
|
mm.forget(aResult);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsDataHashtable<nsStringHashKey, nsMessageManagerScriptHolder*>*
|
|
nsMessageManagerScriptExecutor::sCachedScripts = nullptr;
|
|
nsScriptCacheCleaner* nsMessageManagerScriptExecutor::sScriptCacheCleaner = nullptr;
|
|
|
|
void
|
|
nsMessageManagerScriptExecutor::DidCreateGlobal()
|
|
{
|
|
NS_ASSERTION(mGlobal, "Should have mGlobal!");
|
|
if (!sCachedScripts) {
|
|
sCachedScripts =
|
|
new nsDataHashtable<nsStringHashKey, nsMessageManagerScriptHolder*>;
|
|
|
|
RefPtr<nsScriptCacheCleaner> scriptCacheCleaner =
|
|
new nsScriptCacheCleaner();
|
|
scriptCacheCleaner.forget(&sScriptCacheCleaner);
|
|
}
|
|
}
|
|
|
|
// static
|
|
void
|
|
nsMessageManagerScriptExecutor::PurgeCache()
|
|
{
|
|
if (sCachedScripts) {
|
|
NS_ASSERTION(sCachedScripts != nullptr, "Need cached scripts");
|
|
for (auto iter = sCachedScripts->Iter(); !iter.Done(); iter.Next()) {
|
|
delete iter.Data();
|
|
iter.Remove();
|
|
}
|
|
}
|
|
}
|
|
|
|
// static
|
|
void
|
|
nsMessageManagerScriptExecutor::Shutdown()
|
|
{
|
|
if (sCachedScripts) {
|
|
PurgeCache();
|
|
|
|
delete sCachedScripts;
|
|
sCachedScripts = nullptr;
|
|
|
|
RefPtr<nsScriptCacheCleaner> scriptCacheCleaner;
|
|
scriptCacheCleaner.swap(sScriptCacheCleaner);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsMessageManagerScriptExecutor::LoadScriptInternal(const nsAString& aURL,
|
|
bool aRunInGlobalScope)
|
|
{
|
|
if (!mGlobal || !sCachedScripts) {
|
|
return;
|
|
}
|
|
|
|
JSRuntime* rt = CycleCollectedJSRuntime::Get()->Runtime();
|
|
JS::Rooted<JSScript*> script(rt);
|
|
|
|
nsMessageManagerScriptHolder* holder = sCachedScripts->Get(aURL);
|
|
if (holder && holder->WillRunInGlobalScope() == aRunInGlobalScope) {
|
|
script = holder->mScript;
|
|
} else {
|
|
// Don't put anything in the cache if we already have an entry
|
|
// with a different WillRunInGlobalScope() value.
|
|
bool shouldCache = !holder;
|
|
TryCacheLoadAndCompileScript(aURL, aRunInGlobalScope,
|
|
shouldCache, &script);
|
|
}
|
|
|
|
JS::Rooted<JSObject*> global(rt, mGlobal->GetJSObject());
|
|
if (global) {
|
|
AutoEntryScript aes(global, "message manager script load");
|
|
JSContext* cx = aes.cx();
|
|
if (script) {
|
|
if (aRunInGlobalScope) {
|
|
JS::CloneAndExecuteScript(cx, script);
|
|
} else {
|
|
JS::Rooted<JSObject*> scope(cx);
|
|
bool ok = js::ExecuteInGlobalAndReturnScope(cx, global, script, &scope);
|
|
if (ok) {
|
|
// Force the scope to stay alive.
|
|
mAnonymousGlobalScopes.AppendElement(scope);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsMessageManagerScriptExecutor::TryCacheLoadAndCompileScript(
|
|
const nsAString& aURL,
|
|
bool aRunInGlobalScope,
|
|
bool aShouldCache,
|
|
JS::MutableHandle<JSScript*> aScriptp)
|
|
{
|
|
nsCString url = NS_ConvertUTF16toUTF8(aURL);
|
|
nsCOMPtr<nsIURI> uri;
|
|
nsresult rv = NS_NewURI(getter_AddRefs(uri), url);
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
|
|
bool hasFlags;
|
|
rv = NS_URIChainHasFlags(uri,
|
|
nsIProtocolHandler::URI_IS_LOCAL_RESOURCE,
|
|
&hasFlags);
|
|
if (NS_FAILED(rv) || !hasFlags) {
|
|
NS_WARNING("Will not load a frame script!");
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIChannel> channel;
|
|
NS_NewChannel(getter_AddRefs(channel),
|
|
uri,
|
|
nsContentUtils::GetSystemPrincipal(),
|
|
nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL,
|
|
nsIContentPolicy::TYPE_OTHER);
|
|
|
|
if (!channel) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIInputStream> input;
|
|
rv = channel->Open2(getter_AddRefs(input));
|
|
NS_ENSURE_SUCCESS_VOID(rv);
|
|
nsString dataString;
|
|
char16_t* dataStringBuf = nullptr;
|
|
size_t dataStringLength = 0;
|
|
uint64_t avail64 = 0;
|
|
if (input && NS_SUCCEEDED(input->Available(&avail64)) && avail64) {
|
|
if (avail64 > UINT32_MAX) {
|
|
return;
|
|
}
|
|
nsCString buffer;
|
|
uint32_t avail = (uint32_t)std::min(avail64, (uint64_t)UINT32_MAX);
|
|
if (NS_FAILED(NS_ReadInputStreamToString(input, buffer, avail))) {
|
|
return;
|
|
}
|
|
nsScriptLoader::ConvertToUTF16(channel, (uint8_t*)buffer.get(), avail,
|
|
EmptyString(), nullptr,
|
|
dataStringBuf, dataStringLength);
|
|
}
|
|
|
|
JS::SourceBufferHolder srcBuf(dataStringBuf, dataStringLength,
|
|
JS::SourceBufferHolder::GiveOwnership);
|
|
|
|
if (dataStringBuf && dataStringLength > 0) {
|
|
// Compile the script in the compilation scope instead of the current global
|
|
// to avoid keeping the current compartment alive.
|
|
AutoJSAPI jsapi;
|
|
if (!jsapi.Init(xpc::CompilationScope())) {
|
|
return;
|
|
}
|
|
JSContext* cx = jsapi.cx();
|
|
JS::CompileOptions options(cx, JSVERSION_LATEST);
|
|
options.setFileAndLine(url.get(), 1);
|
|
options.setNoScriptRval(true);
|
|
JS::Rooted<JSScript*> script(cx);
|
|
|
|
if (aRunInGlobalScope) {
|
|
if (!JS::Compile(cx, options, srcBuf, &script)) {
|
|
return;
|
|
}
|
|
// We're going to run these against some non-global scope.
|
|
} else if (!JS::CompileForNonSyntacticScope(cx, options, srcBuf, &script)) {
|
|
return;
|
|
}
|
|
|
|
MOZ_ASSERT(script);
|
|
aScriptp.set(script);
|
|
|
|
nsAutoCString scheme;
|
|
uri->GetScheme(scheme);
|
|
// We don't cache data: scripts!
|
|
if (aShouldCache && !scheme.EqualsLiteral("data")) {
|
|
// Root the object also for caching.
|
|
nsMessageManagerScriptHolder* holder =
|
|
new nsMessageManagerScriptHolder(cx, script, aRunInGlobalScope);
|
|
sCachedScripts->Put(aURL, holder);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsMessageManagerScriptExecutor::TryCacheLoadAndCompileScript(
|
|
const nsAString& aURL,
|
|
bool aRunInGlobalScope)
|
|
{
|
|
JS::Rooted<JSScript*> script(nsContentUtils::RootingCx());
|
|
TryCacheLoadAndCompileScript(aURL, aRunInGlobalScope, true, &script);
|
|
}
|
|
|
|
void
|
|
nsMessageManagerScriptExecutor::Trace(const TraceCallbacks& aCallbacks, void* aClosure)
|
|
{
|
|
for (size_t i = 0, length = mAnonymousGlobalScopes.Length(); i < length; ++i) {
|
|
aCallbacks.Trace(&mAnonymousGlobalScopes[i], "mAnonymousGlobalScopes[i]", aClosure);
|
|
}
|
|
}
|
|
|
|
bool
|
|
nsMessageManagerScriptExecutor::InitChildGlobalInternal(
|
|
nsISupports* aScope,
|
|
const nsACString& aID)
|
|
{
|
|
AutoSafeJSContext cx;
|
|
nsContentUtils::GetSecurityManager()->GetSystemPrincipal(getter_AddRefs(mPrincipal));
|
|
|
|
nsIXPConnect* xpc = nsContentUtils::XPConnect();
|
|
const uint32_t flags = nsIXPConnect::INIT_JS_STANDARD_CLASSES;
|
|
|
|
JS::CompartmentOptions options;
|
|
options.creationOptions().setZone(JS::SystemZone);
|
|
options.behaviors().setVersion(JSVERSION_LATEST);
|
|
|
|
if (xpc::SharedMemoryEnabled()) {
|
|
options.creationOptions().setSharedMemoryAndAtomicsEnabled(true);
|
|
}
|
|
|
|
nsresult rv =
|
|
xpc->InitClassesWithNewWrappedGlobal(cx, aScope, mPrincipal,
|
|
flags, options, getter_AddRefs(mGlobal));
|
|
NS_ENSURE_SUCCESS(rv, false);
|
|
|
|
|
|
JS::Rooted<JSObject*> global(cx, mGlobal->GetJSObject());
|
|
NS_ENSURE_TRUE(global, false);
|
|
|
|
// Set the location information for the new global, so that tools like
|
|
// about:memory may use that information.
|
|
xpc::SetLocationForGlobal(global, aID);
|
|
|
|
DidCreateGlobal();
|
|
return true;
|
|
}
|
|
|
|
void
|
|
nsMessageManagerScriptExecutor::MarkScopesForCC()
|
|
{
|
|
for (uint32_t i = 0; i < mAnonymousGlobalScopes.Length(); ++i) {
|
|
JSObject* obj = mAnonymousGlobalScopes[i];
|
|
if (obj) {
|
|
JS::ExposeObjectToActiveJS(obj);
|
|
}
|
|
}
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(nsScriptCacheCleaner, nsIObserver)
|
|
|
|
nsFrameMessageManager* nsFrameMessageManager::sChildProcessManager = nullptr;
|
|
nsFrameMessageManager* nsFrameMessageManager::sParentProcessManager = nullptr;
|
|
nsFrameMessageManager* nsFrameMessageManager::sSameProcessParentManager = nullptr;
|
|
|
|
class nsAsyncMessageToSameProcessChild : public nsSameProcessAsyncMessageBase,
|
|
public Runnable
|
|
{
|
|
public:
|
|
nsAsyncMessageToSameProcessChild(JSContext* aCx, JS::Handle<JSObject*> aCpows)
|
|
: nsSameProcessAsyncMessageBase(aCx, aCpows)
|
|
{ }
|
|
NS_IMETHOD Run()
|
|
{
|
|
nsFrameMessageManager* ppm = nsFrameMessageManager::GetChildProcessManager();
|
|
ReceiveMessage(static_cast<nsIContentFrameMessageManager*>(ppm), nullptr, ppm);
|
|
return NS_OK;
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* Send messages to an imaginary child process in a single-process scenario.
|
|
*/
|
|
class SameParentProcessMessageManagerCallback : public MessageManagerCallback
|
|
{
|
|
public:
|
|
SameParentProcessMessageManagerCallback()
|
|
{
|
|
MOZ_COUNT_CTOR(SameParentProcessMessageManagerCallback);
|
|
}
|
|
virtual ~SameParentProcessMessageManagerCallback()
|
|
{
|
|
MOZ_COUNT_DTOR(SameParentProcessMessageManagerCallback);
|
|
}
|
|
|
|
virtual bool DoLoadMessageManagerScript(const nsAString& aURL,
|
|
bool aRunInGlobalScope) override
|
|
{
|
|
ProcessGlobal* global = ProcessGlobal::Get();
|
|
MOZ_ASSERT(!aRunInGlobalScope);
|
|
global->LoadScript(aURL);
|
|
return true;
|
|
}
|
|
|
|
virtual nsresult DoSendAsyncMessage(JSContext* aCx,
|
|
const nsAString& aMessage,
|
|
StructuredCloneData& aData,
|
|
JS::Handle<JSObject *> aCpows,
|
|
nsIPrincipal* aPrincipal) override
|
|
{
|
|
RefPtr<nsAsyncMessageToSameProcessChild> ev =
|
|
new nsAsyncMessageToSameProcessChild(aCx, aCpows);
|
|
|
|
nsresult rv = ev->Init(aCx, aMessage, aData, aPrincipal);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = NS_DispatchToCurrentThread(ev);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
bool CheckPermission(const nsAString& aPermission) override
|
|
{
|
|
// In a single-process scenario, the child always has all capabilities.
|
|
return true;
|
|
}
|
|
|
|
bool CheckManifestURL(const nsAString& aManifestURL) override
|
|
{
|
|
// In a single-process scenario, the child always has all capabilities.
|
|
return true;
|
|
}
|
|
|
|
bool CheckAppHasPermission(const nsAString& aPermission) override
|
|
{
|
|
// In a single-process scenario, the child always has all capabilities.
|
|
return true;
|
|
}
|
|
|
|
virtual bool CheckAppHasStatus(unsigned short aStatus) override
|
|
{
|
|
// In a single-process scenario, the child always has all capabilities.
|
|
return true;
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* Send messages to the parent process.
|
|
*/
|
|
class ChildProcessMessageManagerCallback : public MessageManagerCallback
|
|
{
|
|
public:
|
|
ChildProcessMessageManagerCallback()
|
|
{
|
|
MOZ_COUNT_CTOR(ChildProcessMessageManagerCallback);
|
|
}
|
|
virtual ~ChildProcessMessageManagerCallback()
|
|
{
|
|
MOZ_COUNT_DTOR(ChildProcessMessageManagerCallback);
|
|
}
|
|
|
|
virtual bool DoSendBlockingMessage(JSContext* aCx,
|
|
const nsAString& aMessage,
|
|
StructuredCloneData& aData,
|
|
JS::Handle<JSObject *> aCpows,
|
|
nsIPrincipal* aPrincipal,
|
|
nsTArray<StructuredCloneData>* aRetVal,
|
|
bool aIsSync) override
|
|
{
|
|
mozilla::dom::ContentChild* cc =
|
|
mozilla::dom::ContentChild::GetSingleton();
|
|
if (!cc) {
|
|
return true;
|
|
}
|
|
ClonedMessageData data;
|
|
if (!BuildClonedMessageDataForChild(cc, aData, data)) {
|
|
return false;
|
|
}
|
|
InfallibleTArray<mozilla::jsipc::CpowEntry> cpows;
|
|
if (aCpows && !cc->GetCPOWManager()->Wrap(aCx, aCpows, &cpows)) {
|
|
return false;
|
|
}
|
|
if (aIsSync) {
|
|
return cc->SendSyncMessage(PromiseFlatString(aMessage), data, cpows,
|
|
IPC::Principal(aPrincipal), aRetVal);
|
|
}
|
|
return cc->SendRpcMessage(PromiseFlatString(aMessage), data, cpows,
|
|
IPC::Principal(aPrincipal), aRetVal);
|
|
}
|
|
|
|
virtual nsresult DoSendAsyncMessage(JSContext* aCx,
|
|
const nsAString& aMessage,
|
|
StructuredCloneData& aData,
|
|
JS::Handle<JSObject *> aCpows,
|
|
nsIPrincipal* aPrincipal) override
|
|
{
|
|
mozilla::dom::ContentChild* cc =
|
|
mozilla::dom::ContentChild::GetSingleton();
|
|
if (!cc) {
|
|
return NS_OK;
|
|
}
|
|
ClonedMessageData data;
|
|
if (!BuildClonedMessageDataForChild(cc, aData, data)) {
|
|
return NS_ERROR_DOM_DATA_CLONE_ERR;
|
|
}
|
|
InfallibleTArray<mozilla::jsipc::CpowEntry> cpows;
|
|
if (aCpows && !cc->GetCPOWManager()->Wrap(aCx, aCpows, &cpows)) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
if (!cc->SendAsyncMessage(PromiseFlatString(aMessage), cpows,
|
|
IPC::Principal(aPrincipal), data)) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
};
|
|
|
|
|
|
class nsAsyncMessageToSameProcessParent : public nsSameProcessAsyncMessageBase,
|
|
public SameProcessMessageQueue::Runnable
|
|
{
|
|
public:
|
|
nsAsyncMessageToSameProcessParent(JSContext* aCx, JS::Handle<JSObject*> aCpows)
|
|
: nsSameProcessAsyncMessageBase(aCx, aCpows)
|
|
{ }
|
|
virtual nsresult HandleMessage() override
|
|
{
|
|
nsFrameMessageManager* ppm = nsFrameMessageManager::sSameProcessParentManager;
|
|
ReceiveMessage(static_cast<nsIContentFrameMessageManager*>(ppm), nullptr, ppm);
|
|
return NS_OK;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Send messages to the imaginary parent process in a single-process scenario.
|
|
*/
|
|
class SameChildProcessMessageManagerCallback : public MessageManagerCallback
|
|
{
|
|
public:
|
|
SameChildProcessMessageManagerCallback()
|
|
{
|
|
MOZ_COUNT_CTOR(SameChildProcessMessageManagerCallback);
|
|
}
|
|
virtual ~SameChildProcessMessageManagerCallback()
|
|
{
|
|
MOZ_COUNT_DTOR(SameChildProcessMessageManagerCallback);
|
|
}
|
|
|
|
virtual bool DoSendBlockingMessage(JSContext* aCx,
|
|
const nsAString& aMessage,
|
|
StructuredCloneData& aData,
|
|
JS::Handle<JSObject *> aCpows,
|
|
nsIPrincipal* aPrincipal,
|
|
nsTArray<StructuredCloneData>* aRetVal,
|
|
bool aIsSync) override
|
|
{
|
|
SameProcessMessageQueue* queue = SameProcessMessageQueue::Get();
|
|
queue->Flush();
|
|
|
|
if (nsFrameMessageManager::sSameProcessParentManager) {
|
|
SameProcessCpowHolder cpows(js::GetRuntime(aCx), aCpows);
|
|
RefPtr<nsFrameMessageManager> ppm = nsFrameMessageManager::sSameProcessParentManager;
|
|
ppm->ReceiveMessage(static_cast<nsIContentFrameMessageManager*>(ppm.get()), nullptr, aMessage,
|
|
true, &aData, &cpows, aPrincipal, aRetVal);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
virtual nsresult DoSendAsyncMessage(JSContext* aCx,
|
|
const nsAString& aMessage,
|
|
StructuredCloneData& aData,
|
|
JS::Handle<JSObject *> aCpows,
|
|
nsIPrincipal* aPrincipal) override
|
|
{
|
|
SameProcessMessageQueue* queue = SameProcessMessageQueue::Get();
|
|
RefPtr<nsAsyncMessageToSameProcessParent> ev =
|
|
new nsAsyncMessageToSameProcessParent(aCx, aCpows);
|
|
nsresult rv = ev->Init(aCx, aMessage, aData, aPrincipal);
|
|
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
queue->Push(ev);
|
|
return NS_OK;
|
|
}
|
|
|
|
};
|
|
|
|
|
|
// This creates the global parent process message manager.
|
|
nsresult
|
|
NS_NewParentProcessMessageManager(nsIMessageBroadcaster** aResult)
|
|
{
|
|
NS_ASSERTION(!nsFrameMessageManager::sParentProcessManager,
|
|
"Re-creating sParentProcessManager");
|
|
RefPtr<nsFrameMessageManager> mm = new nsFrameMessageManager(nullptr,
|
|
nullptr,
|
|
MM_CHROME | MM_PROCESSMANAGER | MM_BROADCASTER);
|
|
nsFrameMessageManager::sParentProcessManager = mm;
|
|
nsFrameMessageManager::NewProcessMessageManager(false); // Create same process message manager.
|
|
mm.forget(aResult);
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
nsFrameMessageManager*
|
|
nsFrameMessageManager::NewProcessMessageManager(bool aIsRemote)
|
|
{
|
|
if (!nsFrameMessageManager::sParentProcessManager) {
|
|
nsCOMPtr<nsIMessageBroadcaster> dummy =
|
|
do_GetService("@mozilla.org/parentprocessmessagemanager;1");
|
|
}
|
|
|
|
MOZ_ASSERT(nsFrameMessageManager::sParentProcessManager,
|
|
"parent process manager not created");
|
|
nsFrameMessageManager* mm;
|
|
if (aIsRemote) {
|
|
// Callback is set in ContentParent::InitInternal so that the process has
|
|
// already started when we send pending scripts.
|
|
mm = new nsFrameMessageManager(nullptr,
|
|
nsFrameMessageManager::sParentProcessManager,
|
|
MM_CHROME | MM_PROCESSMANAGER);
|
|
} else {
|
|
mm = new nsFrameMessageManager(new SameParentProcessMessageManagerCallback(),
|
|
nsFrameMessageManager::sParentProcessManager,
|
|
MM_CHROME | MM_PROCESSMANAGER | MM_OWNSCALLBACK);
|
|
sSameProcessParentManager = mm;
|
|
}
|
|
return mm;
|
|
}
|
|
|
|
nsresult
|
|
NS_NewChildProcessMessageManager(nsISyncMessageSender** aResult)
|
|
{
|
|
NS_ASSERTION(!nsFrameMessageManager::GetChildProcessManager(),
|
|
"Re-creating sChildProcessManager");
|
|
|
|
MessageManagerCallback* cb;
|
|
if (XRE_IsParentProcess()) {
|
|
cb = new SameChildProcessMessageManagerCallback();
|
|
} else {
|
|
cb = new ChildProcessMessageManagerCallback();
|
|
RegisterStrongMemoryReporter(new MessageManagerReporter());
|
|
}
|
|
nsFrameMessageManager* mm = new nsFrameMessageManager(cb,
|
|
nullptr,
|
|
MM_PROCESSMANAGER | MM_OWNSCALLBACK);
|
|
nsFrameMessageManager::SetChildProcessManager(mm);
|
|
RefPtr<ProcessGlobal> global = new ProcessGlobal(mm);
|
|
NS_ENSURE_TRUE(global->Init(), NS_ERROR_UNEXPECTED);
|
|
global.forget(aResult);
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
nsFrameMessageManager::MarkForCC()
|
|
{
|
|
for (auto iter = mListeners.Iter(); !iter.Done(); iter.Next()) {
|
|
nsAutoTObserverArray<nsMessageListenerInfo, 1>* listeners = iter.UserData();
|
|
uint32_t count = listeners->Length();
|
|
for (uint32_t i = 0; i < count; i++) {
|
|
nsCOMPtr<nsIMessageListener> strongListener =
|
|
listeners->ElementAt(i).mStrongListener;
|
|
if (strongListener) {
|
|
xpc_TryUnmarkWrappedGrayObject(strongListener);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mRefCnt.IsPurple()) {
|
|
mRefCnt.RemovePurple();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
nsSameProcessAsyncMessageBase::nsSameProcessAsyncMessageBase(JSContext* aCx, JS::Handle<JSObject*> aCpows)
|
|
: mRuntime(nullptr)
|
|
, mCpows(aCx, aCpows)
|
|
{ }
|
|
|
|
|
|
nsresult
|
|
nsSameProcessAsyncMessageBase::Init(JSContext* aCx,
|
|
const nsAString& aMessage,
|
|
StructuredCloneData& aData,
|
|
nsIPrincipal* aPrincipal)
|
|
{
|
|
if (!mData.Copy(aData)) {
|
|
Telemetry::Accumulate(Telemetry::IPC_SAME_PROCESS_MESSAGE_COPY_OOM_KB, aData.DataLength());
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
mRuntime = js::GetRuntime(aCx);
|
|
mMessage = aMessage;
|
|
mPrincipal = aPrincipal;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsSameProcessAsyncMessageBase::ReceiveMessage(nsISupports* aTarget,
|
|
nsIFrameLoader* aTargetFrameLoader,
|
|
nsFrameMessageManager* aManager)
|
|
{
|
|
// Make sure that we have called Init() and it has succeeded.
|
|
MOZ_ASSERT(mRuntime);
|
|
if (aManager) {
|
|
SameProcessCpowHolder cpows(mRuntime, mCpows);
|
|
|
|
RefPtr<nsFrameMessageManager> mm = aManager;
|
|
mm->ReceiveMessage(aTarget, aTargetFrameLoader, mMessage, false, &mData,
|
|
&cpows, mPrincipal, nullptr);
|
|
}
|
|
}
|