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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 Sun Microsystem.
 * Portions created by Sun Microsystem are Copyright (C) 2003 by
 * Sun Microsystem. All Rights Reserved.
 *    
 * Contributor(s):
 *   Louie Zhao <louie.zhao@sun.com>
 *
 * 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 NPL, 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 NPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsHttpHandler.h"
#include "nsHttpChannel.h"
#include "nsHttpAuthManager.h"
#include "nsReadableUtils.h"
#include "nsNetUtil.h"

NS_IMPL_ISUPPORTS1(nsHttpAuthManager, nsIHttpAuthManager)

nsHttpAuthManager::nsHttpAuthManager()
{
}

nsresult nsHttpAuthManager::Init()
{
  // get reference to the auth cache.  we assume that we will live
  // as long as gHttpHandler.  instantiate it if necessary.

  if (!gHttpHandler) {
    nsresult rv;
    nsCOMPtr<nsIIOService> ios = do_GetIOService(&rv);
    if (NS_FAILED(rv))
      return rv;

    nsCOMPtr<nsIProtocolHandler> handler;
    rv = ios->GetProtocolHandler("http", getter_AddRefs(handler));
    if (NS_FAILED(rv))
      return rv;

    // maybe someone is overriding our HTTP handler implementation?
    NS_ENSURE_TRUE(gHttpHandler, NS_ERROR_UNEXPECTED);
  }
	
  mAuthCache = gHttpHandler->AuthCache();
  NS_ENSURE_TRUE(mAuthCache, NS_ERROR_FAILURE);
  return NS_OK;
}

nsHttpAuthManager::~nsHttpAuthManager()
{
}

NS_IMETHODIMP
nsHttpAuthManager::GetAuthIdentity(const nsACString & aScheme,
                                   const nsACString & aHost,
                                   PRInt32 aPort,
                                   const nsACString & aAuthType,
                                   const nsACString & aRealm,
                                   const nsACString & aPath,
                                   nsAString & aUserDomain,
                                   nsAString & aUserName,
                                   nsAString & aUserPassword)
{
  nsHttpAuthEntry * entry = nsnull;
  nsresult rv;
  if (!aPath.IsEmpty())
    rv = mAuthCache->GetAuthEntryForPath(PromiseFlatCString(aScheme).get(),
                                         PromiseFlatCString(aHost).get(),
                                         aPort,
                                         PromiseFlatCString(aPath).get(),
                                         &entry);
  else
    rv = mAuthCache->GetAuthEntryForDomain(PromiseFlatCString(aScheme).get(),
                                           PromiseFlatCString(aHost).get(),
                                           aPort,
                                           PromiseFlatCString(aRealm).get(),
                                           &entry);

  if (NS_FAILED(rv))
    return rv;
  if (!entry)
    return NS_ERROR_UNEXPECTED;

  aUserDomain.Assign(entry->Domain());
  aUserName.Assign(entry->User());
  aUserPassword.Assign(entry->Pass());
  return NS_OK;
}

NS_IMETHODIMP
nsHttpAuthManager::SetAuthIdentity(const nsACString & aScheme,
                                   const nsACString & aHost,
                                   PRInt32 aPort,
                                   const nsACString & aAuthType,
                                   const nsACString & aRealm,
                                   const nsACString & aPath,
                                   const nsAString & aUserDomain,
                                   const nsAString & aUserName,
                                   const nsAString & aUserPassword)
{
  nsHttpAuthIdentity ident(PromiseFlatString(aUserDomain).get(),
                           PromiseFlatString(aUserName).get(),
                           PromiseFlatString(aUserPassword).get());

  return mAuthCache->SetAuthEntry(PromiseFlatCString(aScheme).get(),
                                  PromiseFlatCString(aHost).get(),
                                  aPort,
                                  PromiseFlatCString(aPath).get(),
                                  PromiseFlatCString(aRealm).get(),
                                  nsnull,  // credentials
                                  nsnull,  // challenge
                                  ident,
                                  nsnull); // metadata
}

NS_IMETHODIMP
nsHttpAuthManager::ClearAll()
{
  return mAuthCache->ClearAll();
}