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/* -*- Mode: C++; 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
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Scott MacGregor <scott@scott-macgregor.org>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of 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 ***** */

/**********************************************************************************
 * nsMsgContentPolicy enforces the specified content policy on images, js, plugins, etc.
 * This is the class used to determine what elements in a message should be loaded.
 *
 * nsMsgCookiePolicy enforces our cookie policy for mail and RSS messages. 
 ***********************************************************************************/

#ifndef _nsMsgContentPolicy_H_
#define _nsMsgContentPolicy_H_

#include "nsIContentPolicy.h"
#include "nsIObserver.h"
#include "nsWeakReference.h"
#include "nsString.h"
#include "nsIAbDirectory.h"

#include "nsICookiePermission.h" 

/* DBFCFDF0-4489-4faa-8122-190FD1EFA16C */
#define NS_MSGCONTENTPOLICY_CID \
{ 0xdbfcfdf0, 0x4489, 0x4faa, { 0x81, 0x22, 0x19, 0xf, 0xd1, 0xef, 0xa1, 0x6c } }

#define NS_MSGCONTENTPOLICY_CONTRACTID "@mozilla.org/messenger/content-policy;1"

class nsIMsgDBHdr;
class nsIDocShell;

class nsMsgContentPolicy : public nsIContentPolicy,
                           public nsIObserver,
                           public nsSupportsWeakReference
{
public:
  nsMsgContentPolicy();
  virtual ~nsMsgContentPolicy();

  nsresult Init();
    
  NS_DECL_ISUPPORTS
  NS_DECL_NSICONTENTPOLICY
  NS_DECL_NSIOBSERVER

protected:
  PRBool   mBlockRemoteImages;
  PRBool   mAllowPlugins;
  nsCString mTrustedMailDomains;
  nsCOMPtr<nsIAbDirectory> mCachedTopLevelAb;

  PRBool IsTrustedDomain(nsIURI * aContentLocation);
  nsresult AllowRemoteContentForSender(nsIMsgDBHdr * aMsgHdr, PRBool * aAllowForSender);
  nsresult AllowRemoteContentForMsgHdr(nsIMsgDBHdr * aMsgHdr, nsIURI * aRequestingLocation, nsIURI * aContentLocation, PRInt16 *aDecision);
  nsresult MailShouldLoad(nsIURI * aRequestingLocation, nsIURI * aContentLocation, PRInt16 * aDecision);
  nsresult ComposeShouldLoad(nsIDocShell * aRootDocShell, nsISupports *aRequestingContext, 
                             nsIURI * aContentLocation, PRInt16 * aDecision);

  nsresult GetRootDocShellForContext(nsISupports * aRequestingContext, nsIDocShell ** aDocShell);
  nsresult GetMessagePaneURI(nsIDocShell * aRootDocShell, nsIURI ** aURI);
};

#ifdef MOZ_THUNDERBIRD

/* 2C4B5CC1-8C0F-4080-92A7-D133CC30F43B */
#define NS_MSGCOOKIEPOLICY_CID \
{ 0x2c4b5cc1, 0x8c0f, 0x4080, { 0x92, 0xa7, 0xd1, 0x33, 0xcc, 0x30, 0xf4, 0x3b } }


class nsMsgCookiePolicy : public nsICookiePermission
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSICOOKIEPERMISSION

  nsMsgCookiePolicy() {}

  virtual ~nsMsgCookiePolicy() {}
};

#endif

#endif // _nsMsgContentPolicy_H_