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104 lines
4.0 KiB
Plaintext
104 lines
4.0 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim:set ts=4 sw=4 sts=4 cin: */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications.
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* Portions created by the Initial Developer are Copyright (C) 2001
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Gagan Saksena <gagan@netscape.com> (original author)
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* Darin Fisher <darin@netscape.com>
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* Christian Biesinger <cbiesinger@web.de>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsISupports.idl"
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interface nsIChannel;
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/**
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* Implement this interface to receive control over various channel events.
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* Channels will try to get this interface from a channel's
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* notificationCallbacks or, if not available there, from the loadGroup's
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* notificationCallbacks.
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*
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* These methods are called before onStartRequest, and should be handled
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* SYNCHRONOUSLY.
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*/
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[scriptable, uuid(6757d790-2916-498e-aaca-6b668a956875)]
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interface nsIChannelEventSink : nsISupports
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{
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/**
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* This is a temporary redirect. New requests for this resource should
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* continue to use the URI of the old channel.
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*
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* The new URI may be identical to the old one.
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*/
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const unsigned long REDIRECT_TEMPORARY = 1 << 0;
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/**
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* This is a permanent redirect. New requests for this resource should use
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* the URI of the new channel (This might be an HTTP 301 reponse).
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* If this flag is not set, this is a temporary redirect.
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*
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* The new URI may be identical to the old one.
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*/
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const unsigned long REDIRECT_PERMANENT = 1 << 1;
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/**
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* This is an internal redirect, i.e. it was not initiated by the remote
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* server, but is specific to the channel implementation.
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*
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* The new URI may be identical to the old one.
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*/
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const unsigned long REDIRECT_INTERNAL = 1 << 2;
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/**
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* Called when a redirect occurs. This may happen due to an HTTP 3xx status
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* code.
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*
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* @param oldChannel
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* The channel that's being redirected.
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* @param newChannel
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* The new channel. This channel is not opened yet.
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* @param flags
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* Flags indicating the type of redirect. A bitmask consisting
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* of flags from above.
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* One of REDIRECT_TEMPORARY and REDIRECT_PERMANENT will always be
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* set.
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*
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* @throw <any> Throwing an exception will cancel the load. No network
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* request for the new channel will be made.
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*/
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void onChannelRedirect(in nsIChannel oldChannel,
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in nsIChannel newChannel,
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in unsigned long flags);
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};
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