/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * 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"

%{C++
#include "nsTArray.h"
class nsCString;
%}
[ptr] native StringArray(nsTArray<nsCString>);

interface nsISocketTransport;
interface nsIAsyncInputStream;
interface nsIAsyncOutputStream;
interface nsIURI;
interface nsIProxyInfo;

/**
 * The callback interface for nsIHttpChannelInternal::HTTPUpgrade()
 */

[scriptable, uuid(5644af88-09e1-4fbd-83da-f012b3b30180)]
interface nsIHttpUpgradeListener : nsISupports
{
    void onTransportAvailable(in nsISocketTransport   aTransport,
                              in nsIAsyncInputStream  aSocketIn,
                              in nsIAsyncOutputStream aSocketOut);
};

/**
 * Dumping ground for http.  This interface will never be frozen.  If you are
 * using any feature exposed by this interface, be aware that this interface
 * will change and you will be broken.  You have been warned.
 */
[scriptable, uuid(9363fd96-af59-47e8-bddf-1d5e91acd336)]
interface nsIHttpChannelInternal : nsISupports
{
    /**
     * An http channel can own a reference to the document URI
     */
    attribute nsIURI documentURI;

    /**
     * Get the major/minor version numbers for the request
     */
    void getRequestVersion(out unsigned long major, out unsigned long minor);

    /**
     * Get the major/minor version numbers for the response
     */
    void getResponseVersion(out unsigned long major, out unsigned long minor);

    /**
     * Helper method to set a cookie with a consumer-provided
     * cookie header, _but_ using the channel's other information
     * (URI's, prompters, date headers etc).
     *
     * @param aCookieHeader
     *        The cookie header to be parsed.
     */
    void setCookie(in string aCookieHeader);

    /**
     * Setup this channel as an application cache fallback channel.
     */
    void setupFallbackChannel(in string aFallbackKey);

    /**
     * Force relevant cookies to be sent with this load even if normally they
     * wouldn't be.
     */
    attribute boolean forceAllowThirdPartyCookie;

    /**
     * True iff the channel has been canceled.
     */
    readonly attribute boolean canceled;

    /**
     * External handlers may set this to true to notify the channel
     * that it is open on behalf of a download.
     */
    attribute boolean channelIsForDownload;

    /**
     * The local IP address to which this channel is bound, in the
     * format produced by PR_NetAddrToString. May be IPv4 or IPv6.
     * Note: in the presence of NAT, this may not be the same as the
     * address that the remote host thinks it's talking to.
     *
     * May throw NS_ERROR_NOT_AVAILABLE if accessed when the channel's
     * endpoints are not yet determined, or in any case when
     * nsIHttpActivityObserver.isActive is false. See bugs 534698 and 526207.
     */
    readonly attribute AUTF8String localAddress;

    /**
     * The local port number to which this channel is bound.
     *
     * May throw NS_ERROR_NOT_AVAILABLE if accessed when the channel's
     * endpoints are not yet determined, or in any case when
     * nsIHttpActivityObserver.isActive is false. See bugs 534698 and 526207.
     */
    readonly attribute PRInt32 localPort;

    /**
     * The IP address of the remote host that this channel is
     * connected to, in the format produced by PR_NetAddrToString.
     *
     * May throw NS_ERROR_NOT_AVAILABLE if accessed when the channel's
     * endpoints are not yet determined, or in any case when
     * nsIHttpActivityObserver.isActive is false. See bugs 534698 and 526207.
     */
    readonly attribute AUTF8String remoteAddress;

    /**
     * The remote port number that this channel is connected to.
     *
     * May throw NS_ERROR_NOT_AVAILABLE if accessed when the channel's
     * endpoints are not yet determined, or in any case when
     * nsIHttpActivityObserver.isActive is false. See bugs 534698 and 526207.
     */
    readonly attribute PRInt32 remotePort;

    /**
     * Transfer chain of redirected cache-keys.
     */
    [noscript] void setCacheKeysRedirectChain(in StringArray cacheKeys);

    /**
     * HTTPUpgrade allows for the use of HTTP to bootstrap another protocol
     * via the RFC 2616 Upgrade request header in conjunction with a 101 level
     * response. The nsIHttpUpgradeListener will have its 
     * onTransportAvailable() method invoked if a matching 101 is processed.
     * The arguments to onTransportAvailable provide the new protocol the low
     * level tranport streams that are no longer used by HTTP.
     *
     * The onStartRequest and onStopRequest events are still delivered and the
     * listener gets full control over the socket if and when onTransportAvailable
     * is delievered.
     *
     * @param aProtocolName
     *        The value of the HTTP Upgrade request header
     * @param aListener
     *        The callback object used to handle a successful upgrade
     */
    void HTTPUpgrade(in ACString aProtocolName,
                     in nsIHttpUpgradeListener aListener);

};
