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/* -*- Mode: IDL; 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 "nsIChannel.idl"

interface nsIFile;
interface nsIZipEntry;

[scriptable, builtinclass, uuid(e72b179b-d5df-4d87-b5de-fd73a65c60f6)]
interface nsIJARChannel : nsIChannel
{
    /**
     * Returns the JAR file.  May be null if the jar is remote.
     * Setting the JAR file is optional and overrides the JAR
     * file used for local file JARs. Setting the JAR file after
     * the channel has been opened is not permitted.
     */
    attribute nsIFile jarFile;

    /**
     * Returns the zip entry if the file is synchronously accessible.
     * This will work even without opening the channel.
     */
    readonly attribute nsIZipEntry zipEntry;

    /**
     * If the JAR file is cached in the JAR cache, returns true and
     * holds a reference to the cached zip reader to be used when
     * the channel is read from, ensuring the cached reader will be used.
     * For a successful read from the cached reader, close() should not
     * be called on the reader--per nsIZipReader::getZip() documentation.
     * Returns false if the JAR file is not cached. Calling this method
     * after the channel has been opened is not permitted.
     */
    boolean ensureCached();
};