/* -*- 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):
 *   Darin Fisher <darin@netscape.com> (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
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 * 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 "nsHttpConnectionInfo.h"
#include "nsIProtocolProxyService.h"

void
nsHttpConnectionInfo::SetOriginServer(const nsACString &host, PRInt32 port)
{
    mHost = host;
    mPort = port == -1 ? DefaultPort() : port;

    //
    // build hash key:
    //
    // the hash key uniquely identifies the connection type.  two connections
    // are "equal" if they end up talking the same protocol to the same server
    // and are both used for anonymous or non-anonymous connection only;
    // anonymity of the connection is setup later from nsHttpChannel::AsyncOpen
    // where we know we use anonymous connection (LOAD_ANONYMOUS load flag)
    //

    const char *keyHost;
    PRInt32 keyPort;

    if (mUsingHttpProxy && !mUsingSSL) {
        keyHost = ProxyHost();
        keyPort = ProxyPort();
    }
    else {
        keyHost = Host();
        keyPort = Port();
    }

    mHashKey.AssignLiteral("...");
    mHashKey.Append(keyHost);
    mHashKey.Append(':');
    mHashKey.AppendInt(keyPort);

    if (mUsingHttpProxy)
        mHashKey.SetCharAt('P', 0);
    if (mUsingSSL)
        mHashKey.SetCharAt('S', 1);

    // NOTE: for transparent proxies (e.g., SOCKS) we need to encode the proxy
    // type in the hash key (this ensures that we will continue to speak the
    // right protocol even if our proxy preferences change).
    if (!mUsingHttpProxy && ProxyHost()) {
        mHashKey.AppendLiteral(" (");
        mHashKey.Append(ProxyType());
        mHashKey.Append(')');
    }
}

nsHttpConnectionInfo*
nsHttpConnectionInfo::Clone() const
{
    nsHttpConnectionInfo* clone = new nsHttpConnectionInfo(mHost, mPort, mProxyInfo, mUsingSSL);
    if (!clone)
        return nsnull;

    // Make sure the anonymous flag is transferred!
    clone->SetAnonymous(mHashKey.CharAt(2) == 'A');
    
    return clone;
}

PRBool
nsHttpConnectionInfo::ShouldForceConnectMethod()
{
    if (!mProxyInfo)
        return PR_FALSE;
    
    PRUint32 resolveFlags;
    nsresult rv;
    
    rv = mProxyInfo->GetResolveFlags(&resolveFlags);
    if (NS_FAILED(rv))
        return PR_FALSE;

    return resolveFlags & nsIProtocolProxyService::RESOLVE_ALWAYS_TUNNEL;
}
