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Bug 820170 - nsDOMEventTarget holds a global. r=smaug

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This commit is contained in:
Gabor Krizsanits 2013-04-04 11:30:36 +02:00
parent ea8889ecf7
commit 0a621fd246
10 changed files with 117 additions and 64 deletions
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11
content/base/public/nsIXMLHttpRequest.idl
View File

@ -12,7 +12,7 @@ interface nsIPrincipal;
interface nsIScriptContext;
interface nsIURI;
interface nsIVariant;
interface nsPIDOMWindow;
interface nsIGlobalObject;
interface nsIInputStream;
interface nsIDOMBlob;
@ -79,7 +79,7 @@ interface nsIXMLHttpRequestUpload : nsIXMLHttpRequestEventTarget {
* you're aware of all the security implications. And then think twice about
* it.
*/
[scriptable, uuid(cd31a34e-71b5-4bea-8366-c926de9d3d62)]
[scriptable, uuid(977f1406-416a-40ac-ab89-ccd7ca0622ea)]
interface nsIXMLHttpRequest : nsISupports
{
/**
@ -301,13 +301,16 @@ interface nsIXMLHttpRequest : nsISupports
* null.
* @param scriptContext The script context to use for the request. May be
* null.
* @param ownerWindow The associated window for the request. May be null.
* @param globalObject The associated global for the request. Can be the
* outer window, a sandbox, or a backstage pass.
* May be null, but then the request cannot create a
* document.
* @param baseURI The base URI to use when resolving relative URIs. May be
* null.
*/
[noscript] void init(in nsIPrincipal principal,
in nsIScriptContext scriptContext,
in nsPIDOMWindow ownerWindow,
in nsIGlobalObject globalObject,
in nsIURI baseURI);
/**

24
content/base/src/nsXMLHttpRequest.cpp
View File

@ -342,7 +342,11 @@ nsXMLHttpRequest::Init()
secMan->GetSystemPrincipal(getter_AddRefs(subjectPrincipal));
}
NS_ENSURE_STATE(subjectPrincipal);
Construct(subjectPrincipal, nullptr);
// Instead of grabbing some random global from the context stack,
// let's use the default one (junk drawer) for now.
// We should move away from this Init...
Construct(subjectPrincipal, xpc::GetNativeForGlobal(xpc::GetJunkScope()));
return NS_OK;
}
@ -352,15 +356,21 @@ nsXMLHttpRequest::Init()
NS_IMETHODIMP
nsXMLHttpRequest::Init(nsIPrincipal* aPrincipal,
nsIScriptContext* aScriptContext,
nsPIDOMWindow* aOwnerWindow,
nsIGlobalObject* aGlobalObject,
nsIURI* aBaseURI)
{
NS_ASSERTION(!aOwnerWindow || aOwnerWindow->IsOuterWindow(),
"Expecting an outer window here!");
NS_ENSURE_ARG_POINTER(aPrincipal);
Construct(aPrincipal,
aOwnerWindow ? aOwnerWindow->GetCurrentInnerWindow() : nullptr,
aBaseURI);
if (nsCOMPtr<nsPIDOMWindow> win = do_QueryInterface(aGlobalObject)) {
if (win->IsOuterWindow()) {
// Must be bound to inner window, innerize if necessary.
nsCOMPtr<nsIGlobalObject> inner = do_QueryInterface(
win->GetCurrentInnerWindow());
aGlobalObject = inner.get();
}
}
Construct(aPrincipal, aGlobalObject, aBaseURI);
return NS_OK;
}

18
content/base/src/nsXMLHttpRequest.h
View File

@ -147,16 +147,16 @@ public:
const mozilla::dom::MozXMLHttpRequestParameters& aParams,
ErrorResult& aRv)
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aGlobal.Get());
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.Get());
nsCOMPtr<nsIScriptObjectPrincipal> principal =
do_QueryInterface(aGlobal.Get());
if (!window || ! principal) {
if (!global || ! principal) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
nsRefPtr<nsXMLHttpRequest> req = new nsXMLHttpRequest();
req->Construct(principal->GetPrincipal(), window);
req->Construct(principal->GetPrincipal(), global);
req->InitParameters(aParams.mMozAnon, aParams.mMozSystem);
return req.forget();
}
@ -178,13 +178,14 @@ public:
}
void Construct(nsIPrincipal* aPrincipal,
nsPIDOMWindow* aOwnerWindow,
nsIGlobalObject* aGlobalObject,
nsIURI* aBaseURI = nullptr)
{
MOZ_ASSERT(aPrincipal);
MOZ_ASSERT_IF(aOwnerWindow, aOwnerWindow->IsInnerWindow());
MOZ_ASSERT_IF(nsCOMPtr<nsPIDOMWindow> win = do_QueryInterface(
aGlobalObject), win->IsInnerWindow());
mPrincipal = aPrincipal;
BindToOwner(aOwnerWindow);
BindToOwner(aGlobalObject);
mBaseURI = aBaseURI;
}
@ -458,6 +459,11 @@ public:
// This is called by the factory constructor.
nsresult Init();
nsresult init(nsIPrincipal* principal,
nsIScriptContext* scriptContext,
nsPIDOMWindow* globalObject,
nsIURI* baseURI);
void SetRequestObserver(nsIRequestObserver* aObserver);
NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS_INHERITED(nsXMLHttpRequest,

65
content/events/src/nsDOMEventTargetHelper.cpp
View File

@ -26,8 +26,8 @@ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INTERNAL(nsDOMEventTargetHelper)
if (MOZ_UNLIKELY(cb.WantDebugInfo())) {
char name[512];
nsAutoString uri;
if (tmp->mOwner && tmp->mOwner->GetExtantDocument()) {
tmp->mOwner->GetExtantDocument()->GetDocumentURI(uri);
if (tmp->mOwnerWindow && tmp->mOwnerWindow->GetExtantDocument()) {
tmp->mOwnerWindow->GetExtantDocument()->GetDocumentURI(uri);
}
PR_snprintf(name, sizeof(name), "nsDOMEventTargetHelper %s",
NS_ConvertUTF16toUTF8(uri).get());
@ -77,8 +77,8 @@ NS_IMPL_DOMTARGET_DEFAULTS(nsDOMEventTargetHelper)
nsDOMEventTargetHelper::~nsDOMEventTargetHelper()
{
if (mOwner) {
static_cast<nsGlobalWindow*>(mOwner)->RemoveEventTargetObject(this);
if (nsPIDOMWindow* owner = GetOwner()) {
static_cast<nsGlobalWindow*>(owner)->RemoveEventTargetObject(this);
}
if (mListenerManager) {
mListenerManager->Disconnect();
@ -89,32 +89,51 @@ nsDOMEventTargetHelper::~nsDOMEventTargetHelper()
void
nsDOMEventTargetHelper::BindToOwner(nsPIDOMWindow* aOwner)
{
if (mOwner) {
static_cast<nsGlobalWindow*>(mOwner)->RemoveEventTargetObject(this);
mOwner = nullptr;
mHasOrHasHadOwner = false;
nsCOMPtr<nsIGlobalObject> glob = do_QueryInterface(aOwner);
BindToOwner(glob);
}
void
nsDOMEventTargetHelper::BindToOwner(nsIGlobalObject* aOwner)
{
if (mParentObject) {
if (mOwnerWindow) {
static_cast<nsGlobalWindow*>(mOwnerWindow)->RemoveEventTargetObject(this);
mOwnerWindow = nullptr;
}
mParentObject = nullptr;
mHasOrHasHadOwnerWindow = false;
}
if (aOwner) {
mOwner = aOwner;
mHasOrHasHadOwner = true;
static_cast<nsGlobalWindow*>(mOwner)->AddEventTargetObject(this);
mParentObject = aOwner;
// Let's cache the result of this QI for fast access and off main thread usage
mOwnerWindow = nsCOMPtr<nsPIDOMWindow>(do_QueryInterface(aOwner)).get();
if (mOwnerWindow) {
mHasOrHasHadOwnerWindow = true;
static_cast<nsGlobalWindow*>(mOwnerWindow)->AddEventTargetObject(this);
}
}
}
void
nsDOMEventTargetHelper::BindToOwner(nsDOMEventTargetHelper* aOther)
{
if (mOwner) {
static_cast<nsGlobalWindow*>(mOwner)->RemoveEventTargetObject(this);
mOwner = nullptr;
mHasOrHasHadOwner = false;
if (mOwnerWindow) {
static_cast<nsGlobalWindow*>(mOwnerWindow)->RemoveEventTargetObject(this);
mOwnerWindow = nullptr;
mParentObject = nullptr;
mHasOrHasHadOwnerWindow = false;
}
if (aOther) {
mHasOrHasHadOwner = aOther->HasOrHasHadOwner();
if (aOther->GetOwner()) {
mOwner = aOther->GetOwner();
mHasOrHasHadOwner = true;
static_cast<nsGlobalWindow*>(mOwner)->AddEventTargetObject(this);
mHasOrHasHadOwnerWindow = aOther->HasOrHasHadOwner();
if (aOther->GetParentObject()) {
mParentObject = aOther->GetParentObject();
// Let's cache the result of this QI for fast access and off main thread usage
mOwnerWindow = nsCOMPtr<nsPIDOMWindow>(do_QueryInterface(mParentObject)).get();
if (mOwnerWindow) {
mHasOrHasHadOwnerWindow = true;
static_cast<nsGlobalWindow*>(mOwnerWindow)->AddEventTargetObject(this);
}
}
}
}
@ -122,7 +141,8 @@ nsDOMEventTargetHelper::BindToOwner(nsDOMEventTargetHelper* aOther)
void
nsDOMEventTargetHelper::DisconnectFromOwner()
{
mOwner = nullptr;
mOwnerWindow = nullptr;
mParentObject = nullptr;
// Event listeners can't be handled anymore, so we can release them here.
if (mListenerManager) {
mListenerManager->Disconnect();
@ -308,7 +328,8 @@ nsDOMEventTargetHelper::GetContextForEventHandlers(nsresult* aRv)
if (NS_FAILED(*aRv)) {
return nullptr;
}
return mOwner ? static_cast<nsGlobalWindow*>(mOwner)->GetContextInternal()
nsPIDOMWindow* owner = GetOwner();
return owner ? static_cast<nsGlobalWindow*>(owner)->GetContextInternal()
: nullptr;
}

34
content/events/src/nsDOMEventTargetHelper.h
View File

@ -25,7 +25,7 @@ class nsDOMEvent;
class nsDOMEventTargetHelper : public mozilla::dom::EventTarget
{
public:
nsDOMEventTargetHelper() : mOwner(nullptr), mHasOrHasHadOwner(false) {}
nsDOMEventTargetHelper() : mParentObject(nullptr), mOwnerWindow(nullptr), mHasOrHasHadOwnerWindow(false) {}
virtual ~nsDOMEventTargetHelper();
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS(nsDOMEventTargetHelper)
@ -36,10 +36,9 @@ public:
void GetParentObject(nsIScriptGlobalObject **aParentObject)
{
if (mOwner) {
CallQueryInterface(mOwner, aParentObject);
}
else {
if (mParentObject) {
CallQueryInterface(mParentObject, aParentObject);
} else {
*aParentObject = nullptr;
}
}
@ -90,22 +89,24 @@ public:
nsresult CheckInnerWindowCorrectness()
{
NS_ENSURE_STATE(!mHasOrHasHadOwner || mOwner);
if (mOwner) {
NS_ASSERTION(mOwner->IsInnerWindow(), "Should have inner window here!\n");
nsPIDOMWindow* outer = mOwner->GetOuterWindow();
if (!outer || outer->GetCurrentInnerWindow() != mOwner) {
NS_ENSURE_STATE(!mHasOrHasHadOwnerWindow || mOwnerWindow);
if (mOwnerWindow) {
NS_ASSERTION(mOwnerWindow->IsInnerWindow(), "Should have inner window here!\n");
nsPIDOMWindow* outer = mOwnerWindow->GetOuterWindow();
if (!outer || outer->GetCurrentInnerWindow() != mOwnerWindow) {
return NS_ERROR_FAILURE;
}
}
return NS_OK;
}
nsPIDOMWindow* GetOwner() const { return mOwnerWindow; }
void BindToOwner(nsIGlobalObject* aOwner);
void BindToOwner(nsPIDOMWindow* aOwner);
void BindToOwner(nsDOMEventTargetHelper* aOther);
virtual void DisconnectFromOwner();
nsPIDOMWindow* GetOwner() const { return mOwner; }
bool HasOrHasHadOwner() { return mHasOrHasHadOwner; }
nsIGlobalObject* GetParentObject() const { return mParentObject; }
bool HasOrHasHadOwner() { return mHasOrHasHadOwnerWindow; }
protected:
nsRefPtr<nsEventListenerManager> mListenerManager;
// Dispatch a trusted, non-cancellable and non-bubbling event to |this|.
@ -113,9 +114,12 @@ protected:
// Make |event| trusted and dispatch |aEvent| to |this|.
nsresult DispatchTrustedEvent(nsIDOMEvent* aEvent);
private:
// These may be null (native callers or xpcshell).
nsPIDOMWindow* mOwner; // Inner window.
bool mHasOrHasHadOwner;
// Inner window or sandbox.
nsIGlobalObject* mParentObject;
// mParentObject pre QI-ed and cached
// (it is needed for off main thread access)
nsPIDOMWindow* mOwnerWindow;
bool mHasOrHasHadOwnerWindow;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsDOMEventTargetHelper,

1
content/xul/templates/src/Makefile.in
View File

@ -50,6 +50,7 @@ include $(topsrcdir)/config/rules.mk
LOCAL_INCLUDES = -I$(srcdir)/../../../base/src \
-I$(srcdir)/../../content/src \
-I$(srcdir)/../../../../dom/base \
-I$(srcdir)/../../../../layout/xul/tree/ \
$(NULL)

6
content/xul/templates/src/nsXULTemplateQueryProcessorXML.cpp
View File

@ -21,6 +21,7 @@
#include "nsArrayUtils.h"
#include "nsPIDOMWindow.h"
#include "nsXULContentUtils.h"
#include "nsXMLHttpRequest.h"
#include "nsXULTemplateQueryProcessorXML.h"
#include "nsXULTemplateResultXML.h"
@ -174,9 +175,10 @@ nsXULTemplateQueryProcessorXML::GetDatasource(nsIArray* aDataSources,
do_CreateInstance(NS_XMLHTTPREQUEST_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsPIDOMWindow> owner = do_QueryInterface(scriptObject);
req->Init(docPrincipal, context, owner ? owner->GetOuterWindow() : nullptr,
rv = req->Init(docPrincipal, context,
scriptObject ? scriptObject : doc->GetScopeObject(),
nullptr);
NS_ENSURE_SUCCESS(rv, rv);
rv = req->Open(NS_LITERAL_CSTRING("GET"), uriStr, true,
EmptyString(), EmptyString());

3
dom/workers/XMLHttpRequest.cpp
View File

@ -172,9 +172,10 @@ public:
mXHR = new nsXMLHttpRequest();
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(ownerWindow);
if (NS_FAILED(mXHR->Init(mWorkerPrivate->GetPrincipal(),
mWorkerPrivate->GetScriptContext(),
ownerWindow, mWorkerPrivate->GetBaseURI()))) {
global, mWorkerPrivate->GetBaseURI()))) {
mXHR = nullptr;
return false;
}

1
js/xpconnect/src/Makefile.in
View File

@ -65,6 +65,7 @@ LOCAL_INCLUDES = \
-I$(srcdir)/../loader \
-I$(topsrcdir)/caps/include \
-I$(topsrcdir)/content/base/src \
-I$(topsrcdir)/content/base/public \
-I$(topsrcdir)/content/events/src \
-I$(topsrcdir)/content/html/content/src \
-I$(topsrcdir)/content/html/document/src \

14
js/xpconnect/src/XPCComponents.cpp
View File

@ -2952,14 +2952,18 @@ CreateXMLHttpRequest(JSContext *cx, unsigned argc, jsval *vp)
if (!subjectPrincipal)
return false;
nsCOMPtr<nsIXMLHttpRequest> xhr = new nsXMLHttpRequest();
nsresult rv = xhr->Init(subjectPrincipal, NULL, NULL, NULL);
if (NS_FAILED(rv))
return false;
JSObject *global = JS_GetGlobalForScopeChain(cx);
MOZ_ASSERT(global);
nsIScriptObjectPrincipal *sop =
static_cast<nsIScriptObjectPrincipal *>(xpc_GetJSPrivate(global));
nsCOMPtr<nsIGlobalObject> iglobal = do_QueryInterface(sop);
nsCOMPtr<nsIXMLHttpRequest> xhr = new nsXMLHttpRequest();
nsresult rv = xhr->Init(subjectPrincipal, nullptr, iglobal, nullptr);
if (NS_FAILED(rv))
return false;
rv = nsContentUtils::WrapNative(cx, global, xhr, vp);
if (NS_FAILED(rv))
return false;