Bug 580128 - Make IndexedDB work with compartments. r=jst

dom/indexedDB/IDBCursor.cpp

@@ -465,6 +465,8 @@ IDBCursor::Update(const jsval &aValue,
 {
   NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
 
+  nsresult rv;
+
   if (mType != OBJECTSTORE) {
     NS_NOTYETIMPLEMENTED("Implement me!");
     return NS_ERROR_NOT_IMPLEMENTED;
@@ -483,12 +485,7 @@ IDBCursor::Update(const jsval &aValue,
 
   JSAutoRequest ar(aCx);
 
-  js::AutoValueRooter clone(aCx);
-  nsresult rv = nsContentUtils::CreateStructuredClone(aCx, aValue,
-                                                      clone.jsval_addr());
-  if (NS_FAILED(rv)) {
-    return rv;
-  }
+  js::AutoValueRooter clone(aCx, aValue);
 
   if (!mObjectStore->KeyPath().IsEmpty()) {
     // Make sure the object given has the correct keyPath value set on it or
@@ -506,6 +503,9 @@ IDBCursor::Update(const jsval &aValue,
       rv = IDBObjectStore::GetJSValFromKey(key, aCx, prop.jsval_addr());
       NS_ENSURE_SUCCESS(rv, rv);
 
+      ok = JS_StructuredClone(aCx, clone.jsval_value(), clone.jsval_addr());
+      NS_ENSURE_TRUE(ok, NS_ERROR_FAILURE);
+
       ok = JS_DefineUCProperty(aCx, JSVAL_TO_OBJECT(clone.jsval_value()),
                                keyPathChars, keyPathLen, prop.jsval_value(), nsnull,
                                nsnull, JSPROP_ENUMERATE);

dom/indexedDB/IDBObjectStore.cpp

@@ -497,15 +497,9 @@ IDBObjectStore::GetJSONFromArg0(/* jsval arg0, */
 
   JSAutoRequest ar(cx);
 
-  js::AutoValueRooter clone(cx);
-  rv = nsContentUtils::CreateStructuredClone(cx, argv[0], clone.jsval_addr());
-  if (NS_FAILED(rv)) {
-    return rv;
-  }
-
   nsCOMPtr<nsIJSON> json(new nsJSON());
 
-  rv = json->EncodeFromJSVal(clone.jsval_addr(), cx, aJSON);
+  rv = json->EncodeFromJSVal(&argv[0], cx, aJSON);
   NS_ENSURE_SUCCESS(rv, rv);
 
   return NS_OK;
@@ -775,14 +769,9 @@ IDBObjectStore::GetAddInfo(JSContext* aCx,
                            Key& aKey,
                            nsTArray<IndexUpdateInfo>& aUpdateInfoArray)
 {
-  JSAutoRequest ar(aCx);
+  nsresult rv;
 
-  js::AutoValueRooter clone(aCx);
-  nsresult rv = nsContentUtils::CreateStructuredClone(aCx, aValue,
-                                                      clone.jsval_addr());
-  if (NS_FAILED(rv)) {
-    return rv;
-  }
+  JSAutoRequest ar(aCx);
 
   if (mKeyPath.IsEmpty()) {
     rv = GetKeyFromJSVal(aKeyVal, aKey);
@@ -790,11 +779,11 @@ IDBObjectStore::GetAddInfo(JSContext* aCx,
   }
   else {
     // Inline keys live on the object. Make sure it is an object.
-    if (JSVAL_IS_PRIMITIVE(clone.jsval_value())) {
+    if (JSVAL_IS_PRIMITIVE(aValue)) {
       return NS_ERROR_INVALID_ARG;
     }
 
-    rv = GetKeyFromObject(aCx, JSVAL_TO_OBJECT(clone.jsval_value()), mKeyPath, aKey);
+    rv = GetKeyFromObject(aCx, JSVAL_TO_OBJECT(aValue), mKeyPath, aKey);
     NS_ENSURE_SUCCESS(rv, rv);
 
     // Except if null was passed, in which case we're supposed to generate the
@@ -812,11 +801,11 @@ IDBObjectStore::GetAddInfo(JSContext* aCx,
   ObjectStoreInfo* objectStoreInfo = GetObjectStoreInfo();
   NS_ENSURE_TRUE(objectStoreInfo, NS_ERROR_FAILURE);
 
-  rv = GetIndexUpdateInfo(objectStoreInfo, aCx, clone.jsval_value(), aUpdateInfoArray);
+  rv = GetIndexUpdateInfo(objectStoreInfo, aCx, aValue, aUpdateInfoArray);
   NS_ENSURE_SUCCESS(rv, rv);
 
   nsCOMPtr<nsIJSON> json(new nsJSON());
-  rv = json->EncodeFromJSVal(clone.jsval_addr(), aCx, aJSON);
+  rv = json->EncodeFromJSVal(&aValue, aCx, aJSON);
   NS_ENSURE_SUCCESS(rv, rv);
 
   return NS_OK;

dom/src/threads/nsDOMWorker.cpp

@@ -1539,14 +1539,11 @@ nsDOMWorker::PostMessageInternal(PRBool aToInner)
 
   JSAutoRequest ar(cx);
 
-  nsAutoJSValHolder val;
-  if (!val.Hold(cx)) {
-    return NS_ERROR_FAILURE;
-  }
+  JSAutoStructuredCloneBuffer buffer(cx);
 
-  rv = nsContentUtils::CreateStructuredClone(cx, argv[0], val.ToJSValPtr());
-  if (NS_FAILED(rv)) {
-    return rv;
+  if (!buffer.write(argv[0])) {
+    NS_WARNING("Failed to serialize!");
+    return NS_ERROR_FAILURE;
   }
 
   nsRefPtr<nsDOMWorkerMessageEvent> message = new nsDOMWorkerMessageEvent();
@@ -1557,7 +1554,7 @@ nsDOMWorker::PostMessageInternal(PRBool aToInner)
                                  nsnull);
   NS_ENSURE_SUCCESS(rv, rv);
 
-  rv = message->SetJSVal(cx, val);
+  rv = message->SetJSData(cx, buffer);
   NS_ENSURE_SUCCESS(rv, rv);
 
   nsRefPtr<nsDOMFireEventRunnable> runnable =

dom/src/threads/nsDOMWorkerEvents.cpp

@@ -264,15 +264,17 @@ NS_IMPL_CI_INTERFACE_GETTER2(nsDOMWorkerMessageEvent, nsIDOMEvent,
 NS_IMPL_THREADSAFE_DOM_CI_GETINTERFACES(nsDOMWorkerMessageEvent)
 
 nsresult
-nsDOMWorkerMessageEvent::SetJSVal(JSContext* aCx,
-                                  jsval aData)
+nsDOMWorkerMessageEvent::SetJSData(JSContext* aCx,
+                                   JSAutoStructuredCloneBuffer& aBuffer)
 {
+  NS_ASSERTION(aCx, "Null context!");
+
   if (!mDataVal.Hold(aCx)) {
     NS_WARNING("Failed to hold jsval!");
     return NS_ERROR_FAILURE;
   }
 
-  mDataVal = aData;
+  aBuffer.steal(&mData, &mDataLen);
   return NS_OK;
 }
 
@@ -287,19 +289,21 @@ nsDOMWorkerMessageEvent::GetData(nsAString& aData)
   NS_ENSURE_SUCCESS(rv, rv);
   NS_ENSURE_TRUE(cc, NS_ERROR_UNEXPECTED);
 
-  if (!mDataValWasReparented) {
-    if (JSVAL_IS_OBJECT(mDataVal) && !JSVAL_IS_NULL(mDataVal)) {
-      JSContext* cx;
-      rv = cc->GetJSContext(&cx);
-      NS_ENSURE_SUCCESS(rv, rv);
+  if (mData) {
+    JSContext* cx;
+    rv = cc->GetJSContext(&cx);
+    NS_ENSURE_SUCCESS(rv, rv);
 
-      rv =
-        nsContentUtils::ReparentClonedObjectToScope(cx,
-                                                    JSVAL_TO_OBJECT(mDataVal),
-                                                    JS_GetGlobalObject(cx));
-      NS_ENSURE_SUCCESS(rv, rv);
+    JSAutoRequest ar(cx);
+    JSAutoStructuredCloneBuffer buffer(cx);
+    buffer.adopt(mData, mDataLen);
+    mData = nsnull;
+    mDataLen = 0;
+
+    if (!buffer.read(mDataVal.ToJSValPtr())) {
+      NS_WARNING("Failed to deserialize!");
+      return NS_ERROR_FAILURE;
     }
-    mDataValWasReparented = PR_TRUE;
   }
 
   jsval* retval;

dom/src/threads/nsDOMWorkerEvents.h

@@ -47,6 +47,7 @@
 #include "nsIRunnable.h"
 
 #include "jsapi.h"
+#include "jsutil.h"
 #include "nsAutoJSValHolder.h"
 #include "nsAutoPtr.h"
 #include "nsCOMPtr.h"
@@ -210,17 +211,18 @@ public:
   NS_DECL_NSIWORKERMESSAGEEVENT
   NS_DECL_NSICLASSINFO_GETINTERFACES
 
-  nsDOMWorkerMessageEvent() : mDataValWasReparented(PR_FALSE) { }
+  nsDOMWorkerMessageEvent() : mData(nsnull) { }
 
-  nsresult SetJSVal(JSContext* aCx,
-                    jsval aData);
+  nsresult SetJSData(JSContext* aCx,
+                     JSAutoStructuredCloneBuffer& aBuffer);
 
 protected:
   nsString mOrigin;
   nsCOMPtr<nsISupports> mSource;
 
   nsAutoJSValHolder mDataVal;
-  PRBool mDataValWasReparented;
+  uint64* mData;
+  size_t mDataLen;
 };
 
 class nsDOMWorkerProgressEvent : public nsDOMWorkerEvent,
@@ -269,11 +271,6 @@ protected:
   nsAutoRefCnt mRefCnt;
 };
 
-enum SnapshotChoice {
-  WANT_SNAPSHOT,
-  NO_SNAPSHOT
-};
-
 class nsDOMWorkerXHREvent : public nsDOMWorkerProgressEvent,
                             public nsIRunnable
 {