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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsISupports.idl"
#include "nsIUrlClassifierDBService.idl"

/**
 * This is a class to manage large table updates from the server.  Rather than
 * downloading the whole update and then updating the sqlite database, we
 * update tables as the data is streaming in.
 */
[scriptable, uuid(79e6b710-ce68-4639-ac6b-7d293af424a1)]
interface nsIUrlClassifierStreamUpdater : nsISupports
{
  /**
   * The Url to download from.  Should be plain ascii text.
   */
  attribute ACString updateUrl;

  /**
   * Try to download updates from updateUrl.  Only one instance of this
   * runs at a time, so we return false if another instance is already
   * running.
   * This is used in nsIUrlListManager as well as in testing.
   * @param aRequestTables Comma-separated list of tables included in this
   *        update.
   * @param aRequestBody The body for the request.
   * @param aSuccessCallback Called after a successful update.
   * @param aUpdateErrorCallback Called for problems applying the update
   * @param aDownloadErrorCallback Called if we get an http error or a
   *        connection refused error.
   */
  boolean downloadUpdates(in ACString aRequestTables,
                          in ACString aRequestBody,
                          in nsIUrlClassifierCallback aSuccessCallback,
                          in nsIUrlClassifierCallback aUpdateErrorCallback,
                          in nsIUrlClassifierCallback aDownloadErrorCallback);
};