Пример #1
0
NS_IMETHODIMP
IDBDatabase::Transaction(const jsval& aStoreNames,
                         PRUint16 aMode,
                         JSContext* aCx,
                         PRUint8 aOptionalArgCount,
                         nsIIDBTransaction** _retval)
{
  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");

  if (IndexedDatabaseManager::IsShuttingDown()) {
    return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
  }

  if (mClosed) {
    return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
  }

  if (mRunningVersionChange) {
    return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
  }

  if (aOptionalArgCount) {
    if (aMode != nsIIDBTransaction::READ_WRITE &&
        aMode != nsIIDBTransaction::READ_ONLY) {
      return NS_ERROR_DOM_INDEXEDDB_NON_TRANSIENT_ERR;
    }
  }
  else {
    aMode = nsIIDBTransaction::READ_ONLY;
  }

  nsresult rv;
  nsTArray<nsString> storesToOpen;

  if (!JSVAL_IS_PRIMITIVE(aStoreNames)) {
    JSObject* obj = JSVAL_TO_OBJECT(aStoreNames);

    // See if this is a JS array.
    if (JS_IsArrayObject(aCx, obj)) {
      jsuint length;
      if (!JS_GetArrayLength(aCx, obj, &length)) {
        return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
      }

      if (!length) {
        return NS_ERROR_DOM_INVALID_ACCESS_ERR;
      }

      storesToOpen.SetCapacity(length);

      for (jsuint index = 0; index < length; index++) {
        jsval val;
        JSString* jsstr;
        nsDependentJSString str;
        if (!JS_GetElement(aCx, obj, index, &val) ||
            !(jsstr = JS_ValueToString(aCx, val)) ||
            !str.init(aCx, jsstr)) {
          return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
        }

        storesToOpen.AppendElement(str);
      }

      NS_ASSERTION(!storesToOpen.IsEmpty(),
                   "Must have something here or else code below will "
                   "misbehave!");
    }
    else {
      // Perhaps some kind of wrapped object?
      nsIXPConnect* xpc = nsContentUtils::XPConnect();
      NS_ASSERTION(xpc, "This should never be null!");

      nsCOMPtr<nsIXPConnectWrappedNative> wrapper;
      rv = xpc->GetWrappedNativeOfJSObject(aCx, obj, getter_AddRefs(wrapper));
      NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);

      if (wrapper) {
        nsISupports* wrappedObject = wrapper->Native();
        NS_ENSURE_TRUE(wrappedObject, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);

        // We only accept DOMStringList.
        nsCOMPtr<nsIDOMDOMStringList> list = do_QueryInterface(wrappedObject);
        if (list) {
          PRUint32 length;
          rv = list->GetLength(&length);
          NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);

          if (!length) {
            return NS_ERROR_DOM_INVALID_ACCESS_ERR;
          }

          storesToOpen.SetCapacity(length);

          for (PRUint32 index = 0; index < length; index++) {
            nsString* item = storesToOpen.AppendElement();
            NS_ASSERTION(item, "This should never fail!");

            rv = list->Item(index, *item);
            NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
          }

          NS_ASSERTION(!storesToOpen.IsEmpty(),
                       "Must have something here or else code below will "
                       "misbehave!");
        }
      }
    }
  }

  // If our list is empty here then the argument must have been an object that
  // we don't support or a primitive. Either way we convert to a string.
  if (storesToOpen.IsEmpty()) {
    JSString* jsstr;
    nsDependentJSString str;
    if (!(jsstr = JS_ValueToString(aCx, aStoreNames)) ||
        !str.init(aCx, jsstr)) {
      return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
    }

    storesToOpen.AppendElement(str);
  }

  // Now check to make sure the object store names we collected actually exist.
  DatabaseInfo* info = Info();
  for (PRUint32 index = 0; index < storesToOpen.Length(); index++) {
    if (!info->ContainsStoreName(storesToOpen[index])) {
      return NS_ERROR_DOM_INDEXEDDB_NOT_FOUND_ERR;
    }
  }

  nsRefPtr<IDBTransaction> transaction =
    IDBTransaction::Create(this, storesToOpen, aMode, false);
  NS_ENSURE_TRUE(transaction, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);

  transaction.forget(_retval);
  return NS_OK;
}
Пример #2
0
nsresult
OpenDatabaseHelper::EnsureSuccessResult()
{
  DatabaseInfo* dbInfo;
  if (DatabaseInfo::Get(mDatabaseId, &dbInfo)) {
    NS_ASSERTION(dbInfo->referenceCount, "Bad reference count!");
    ++dbInfo->referenceCount;

#ifdef DEBUG
    {
      NS_ASSERTION(dbInfo->name == mName &&
                   dbInfo->version == mCurrentVersion &&
                   dbInfo->id == mDatabaseId &&
                   dbInfo->filePath == mDatabaseFilePath,
                   "Metadata mismatch!");

      PRUint32 objectStoreCount = mObjectStores.Length();
      for (PRUint32 index = 0; index < objectStoreCount; index++) {
        nsAutoPtr<ObjectStoreInfo>& info = mObjectStores[index];
        NS_ASSERTION(info->databaseId == mDatabaseId, "Huh?!");

        ObjectStoreInfo* otherInfo;
        NS_ASSERTION(ObjectStoreInfo::Get(mDatabaseId, info->name, &otherInfo),
                     "ObjectStore not known!");

        NS_ASSERTION(info->name == otherInfo->name &&
                     info->id == otherInfo->id &&
                     info->keyPath == otherInfo->keyPath &&
                     info->autoIncrement == otherInfo->autoIncrement &&
                     info->databaseId == otherInfo->databaseId,
                     "Metadata mismatch!");
        NS_ASSERTION(dbInfo->ContainsStoreName(info->name),
                     "Object store names out of date!");
        NS_ASSERTION(info->indexes.Length() == otherInfo->indexes.Length(),
                     "Bad index length!");

        PRUint32 indexCount = info->indexes.Length();
        for (PRUint32 indexIndex = 0; indexIndex < indexCount; indexIndex++) {
          const IndexInfo& indexInfo = info->indexes[indexIndex];
          const IndexInfo& otherIndexInfo = otherInfo->indexes[indexIndex];
          NS_ASSERTION(indexInfo.id == otherIndexInfo.id,
                       "Bad index id!");
          NS_ASSERTION(indexInfo.name == otherIndexInfo.name,
                       "Bad index name!");
          NS_ASSERTION(indexInfo.keyPath == otherIndexInfo.keyPath,
                       "Bad index keyPath!");
          NS_ASSERTION(indexInfo.unique == otherIndexInfo.unique,
                       "Bad index unique value!");
          NS_ASSERTION(indexInfo.autoIncrement == otherIndexInfo.autoIncrement,
                       "Bad index autoIncrement value!");
        }
      }
    }
#endif

  }
  else {
    nsAutoPtr<DatabaseInfo> newInfo(new DatabaseInfo());

    newInfo->name = mName;
    newInfo->id = mDatabaseId;
    newInfo->filePath = mDatabaseFilePath;
    newInfo->referenceCount = 1;

    if (!DatabaseInfo::Put(newInfo)) {
      NS_ERROR("Failed to add to hash!");
      return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
    }

    dbInfo = newInfo.forget();

    nsresult rv = IDBFactory::UpdateDatabaseMetadata(dbInfo, mCurrentVersion,
                                                     mObjectStores);
    NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);

    NS_ASSERTION(mObjectStores.IsEmpty(), "Should have swapped!");
  }

  dbInfo->nextObjectStoreId = mLastObjectStoreId + 1;
  dbInfo->nextIndexId = mLastIndexId + 1;

  nsRefPtr<IDBDatabase> database =
    IDBDatabase::Create(mOpenDBRequest->ScriptContext(),
                        mOpenDBRequest->Owner(), dbInfo, mASCIIOrigin);
  if (!database) {
    return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
  }

  NS_ASSERTION(!mDatabase, "Shouldn't have a database yet!");
  mDatabase.swap(database);

  return NS_OK;
}
Пример #3
0
NS_IMETHODIMP
IDBDatabase::CreateObjectStore(const nsAString& aName,
                               const jsval& aOptions,
                               JSContext* aCx,
                               nsIIDBObjectStore** _retval)
{
  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");

  IDBTransaction* transaction = AsyncConnectionHelper::GetCurrentTransaction();

  if (!transaction ||
      transaction->Mode() != nsIIDBTransaction::VERSION_CHANGE) {
    return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
  }

  DatabaseInfo* databaseInfo = transaction->DBInfo();

  mozilla::dom::IDBObjectStoreParameters params;
  nsString keyPath;
  keyPath.SetIsVoid(true);
  nsTArray<nsString> keyPathArray;

  if (!JSVAL_IS_VOID(aOptions) && !JSVAL_IS_NULL(aOptions)) {
    nsresult rv = params.Init(aCx, &aOptions);
    NS_ENSURE_SUCCESS(rv, rv);

    // Get keyPath
    jsval val = params.keyPath;
    if (!JSVAL_IS_VOID(val) && !JSVAL_IS_NULL(val)) {
      if (!JSVAL_IS_PRIMITIVE(val) &&
          JS_IsArrayObject(aCx, JSVAL_TO_OBJECT(val))) {
    
        JSObject* obj = JSVAL_TO_OBJECT(val);
    
        jsuint length;
        if (!JS_GetArrayLength(aCx, obj, &length)) {
          return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
        }
    
        if (!length) {
          return NS_ERROR_DOM_SYNTAX_ERR;
        }
    
        keyPathArray.SetCapacity(length);
    
        for (jsuint index = 0; index < length; index++) {
          jsval val;
          JSString* jsstr;
          nsDependentJSString str;
          if (!JS_GetElement(aCx, obj, index, &val) ||
              !(jsstr = JS_ValueToString(aCx, val)) ||
              !str.init(aCx, jsstr)) {
            return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
          }
    
          if (!IDBObjectStore::IsValidKeyPath(aCx, str)) {
            return NS_ERROR_DOM_SYNTAX_ERR;
          }
    
          keyPathArray.AppendElement(str);
        }
    
        NS_ASSERTION(!keyPathArray.IsEmpty(), "This shouldn't have happened!");
      }
      else {
        JSString* jsstr;
        nsDependentJSString str;
        if (!(jsstr = JS_ValueToString(aCx, val)) ||
            !str.init(aCx, jsstr)) {
          return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
        }
    
        if (!IDBObjectStore::IsValidKeyPath(aCx, str)) {
          return NS_ERROR_DOM_SYNTAX_ERR;
        }
    
        keyPath = str;
      }
    }
  }

  if (databaseInfo->ContainsStoreName(aName)) {
    return NS_ERROR_DOM_INDEXEDDB_CONSTRAINT_ERR;
  }

  if (params.autoIncrement &&
      ((!keyPath.IsVoid() && keyPath.IsEmpty()) || !keyPathArray.IsEmpty())) {
    return NS_ERROR_DOM_INVALID_ACCESS_ERR;
  }

  nsRefPtr<ObjectStoreInfo> newInfo(new ObjectStoreInfo());

  newInfo->name = aName;
  newInfo->id = databaseInfo->nextObjectStoreId++;
  newInfo->keyPath = keyPath;
  newInfo->keyPathArray = keyPathArray;
  newInfo->nextAutoIncrementId = params.autoIncrement ? 1 : 0;
  newInfo->comittedAutoIncrementId = newInfo->nextAutoIncrementId;

  if (!databaseInfo->PutObjectStore(newInfo)) {
    NS_WARNING("Put failed!");
    return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
  }

  // Don't leave this in the hash if we fail below!
  AutoRemoveObjectStore autoRemove(databaseInfo, aName);

  nsRefPtr<IDBObjectStore> objectStore =
    transaction->GetOrCreateObjectStore(aName, newInfo);
  NS_ENSURE_TRUE(objectStore, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);

  nsRefPtr<CreateObjectStoreHelper> helper =
    new CreateObjectStoreHelper(transaction, objectStore);

  nsresult rv = helper->DispatchToTransactionPool();
  NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);

  autoRemove.forget();

  objectStore.forget(_retval);
  return NS_OK;
}