gecko-dev/dom/base/nsIScriptChannel.idl

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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla.org code.
*
* The Initial Developer of the Original Code is
* Mozilla Corporation.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Boris Zbarsky <bzbarsky@mit.edu> (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsISupports.idl"
/**
* An interface representing a channel which will have to execute some sort of
* program provided via its URI to compute the data it should return.
*
* If a channel implements this interface, the execution of the program in
* question will be restricted in the following ways:
*
* - If the channel does not have an owner principal, the program will not be
* executed at all, no matter what. This is necessary because in this
* circumstance we have no way to tell whether script execution is allowed at
* all for the originating security context of this channel.
* - If the channel has an owner principal, how it is executed is controlled by
* this interface. However if the owner principal does not subsume the
* principal of the environment in which the program is to be executed the
* execution will be forced to happen in a sandbox.
*/
[scriptable, uuid(33234b99-9588-4c7d-9da6-86b8b7cba565)]
interface nsIScriptChannel : nsISupports
{
/**
* Possible ways of executing the program.
*/
/**
* Don't execute at all.
*/
const unsigned long NO_EXECUTION = 0;
/**
* Execute in a sandbox, no matter how the various principals involved are
* related to each other.
*/
const unsigned long EXECUTE_IN_SANDBOX = 1;
/**
* Execute against the target environment if the principals allow it.
*/
const unsigned long EXECUTE_NORMAL = 2;
/**
* Whether and how the program represented by this channel is to be executed.
* The default value if this property has never been set on this channel MUST
* be either EXECUTE_IN_SANDBOX or NO_EXECUTION.
*
* @throws NS_ERROR_INVALID_ARG when set to an unrecognized value.
*/
attribute unsigned long executionPolicy;
/**
* Control whether the program should be executed synchronosly when
* the channel's AsyncOpen method is called or whether it should be
* executed asynchronously. In both cases, any data that the
* channel returns will be returned asynchronously; the only thing
* this property affects is when the program executes.
*
* The default value of this property is TRUE.
*
* Setting this property after asyncOpen has been called on the
* channel has no effect.
*/
attribute boolean executeAsync;
};