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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
*
* Copyright (C) 2003 Christian Persch
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Id$
*/
#include "mozilla-config.h"
#include "config.h"
#include "EphyContentPolicy.h"
#include "ephy-embed-shell.h"
#include "ephy-embed-single.h"
#include "eel-gconf-extensions.h"
#include "ephy-debug.h"
#include <nsCOMPtr.h>
#include <nsIURI.h>
#undef MOZILLA_INTERNAL_API
#include <nsEmbedString.h>
#define MOZILLA_INTERNAL_API 1
#define CONF_LOCKDOWN_DISABLE_UNSAFE_PROTOCOLS "/apps/epiphany/lockdown/disable_unsafe_protocols"
#define CONF_LOCKDOWN_ADDITIONAL_SAFE_PROTOCOLS "/apps/epiphany/lockdown/additional_safe_protocols"
NS_IMPL_ISUPPORTS1(EphyContentPolicy, nsIContentPolicy)
EphyContentPolicy::EphyContentPolicy()
{
LOG ("EphyContentPolicy ctor (%p)", this);
mLocked = eel_gconf_get_boolean (CONF_LOCKDOWN_DISABLE_UNSAFE_PROTOCOLS);
mSafeProtocols = eel_gconf_get_string_list (CONF_LOCKDOWN_ADDITIONAL_SAFE_PROTOCOLS);
mSafeProtocols = g_slist_prepend (mSafeProtocols, g_strdup ("https"));
mSafeProtocols = g_slist_prepend (mSafeProtocols, g_strdup ("http"));
mEmbedSingle = ephy_embed_shell_get_embed_single (embed_shell);
g_return_if_fail (mEmbedSingle);
}
EphyContentPolicy::~EphyContentPolicy()
{
LOG ("EphyContentPolicy dtor (%p)", this);
g_slist_foreach (mSafeProtocols, (GFunc) g_free, NULL);
g_slist_free (mSafeProtocols);
}
#if MOZ_NSICONTENTPOLICY_VARIANT == 2
NS_IMETHODIMP
EphyContentPolicy::ShouldLoad(PRUint32 aContentType,
nsIURI *aContentLocation,
nsIURI *aRequestingLocation,
nsISupports *aContext,
const nsACString &aMimeTypeGuess,
nsISupports *aExtra,
PRInt16 *aDecision)
{
NS_ENSURE_ARG (aContentLocation);
nsEmbedCString contentScheme;
aContentLocation->GetScheme (contentScheme);
nsEmbedCString contentSpec;
aContentLocation->GetSpec (contentSpec);
/* first general lockdown check */
if (mLocked &&
!g_slist_find_custom (mSafeProtocols, contentScheme.get(), (GCompareFunc) strcmp) &&
strcmp (contentSpec.get(), "about:blank") != 0)
{
*aDecision = nsIContentPolicy::REJECT_REQUEST;
return NS_OK;
}
nsEmbedCString requestingSpec;
if (aRequestingLocation)
{
aRequestingLocation->GetSpec (requestingSpec);
}
gboolean result = FALSE;
g_signal_emit_by_name (mEmbedSingle, "check-content",
(EphyContentCheckType) aContentType,
contentSpec.get(),
requestingSpec.get(),
nsEmbedCString(aMimeTypeGuess).get(),
&result);
if (result)
{
*aDecision = nsIContentPolicy::REJECT_REQUEST;
}
else
{
*aDecision = nsIContentPolicy::ACCEPT;
}
return NS_OK;
}
NS_IMETHODIMP
EphyContentPolicy::ShouldProcess(PRUint32 aContentType,
nsIURI *aContentLocation,
nsIURI *aRequestingLocation,
nsISupports *aContext,
const nsACString &aMimeType,
nsISupports *aExtra,
PRInt16 *aDecision)
{
*aDecision = nsIContentPolicy::ACCEPT;
return NS_OK;
}
#else
/* boolean shouldLoad (in PRInt32 contentType, in nsIURI contentLocation, in nsISupports ctxt, in nsIDOMWindow window); */
NS_IMETHODIMP EphyContentPolicy::ShouldLoad(PRInt32 aContentType,
nsIURI *aContentLocation,
nsISupports *aContext,
nsIDOMWindow *aWindow,
PRBool *_retval)
{
NS_ENSURE_ARG (aContentLocation);
nsEmbedCString contentScheme;
aContentLocation->GetScheme (contentScheme);
nsEmbedCString contentSpec;
aContentLocation->GetSpec (contentSpec);
/* first general lockdown check */
if (mLocked &&
!g_slist_find_custom (mSafeProtocols, contentScheme.get(), (GCompareFunc) strcmp) &&
strcmp (contentSpec.get(), "about:blank") != 0)
{
*_retval = PR_FALSE;
return NS_OK;
}
/* translate to variant-2 types */
EphyContentCheckType type;
switch (aContentType)
{
case nsIContentPolicy::SCRIPT:
type = EPHY_CONTENT_CHECK_TYPE_SCRIPT;
break;
case nsIContentPolicy::IMAGE:
type = EPHY_CONTENT_CHECK_TYPE_IMAGE;
break;
case nsIContentPolicy::STYLESHEET:
type = EPHY_CONTENT_CHECK_TYPE_STYLESHEET;
break;
case nsIContentPolicy::OBJECT:
type = EPHY_CONTENT_CHECK_TYPE_OBJECT;
break;
case nsIContentPolicy::SUBDOCUMENT:
type = EPHY_CONTENT_CHECK_TYPE_SUBDOCUMENT;
break;
case nsIContentPolicy::CONTROL_TAG:
type = EPHY_CONTENT_CHECK_TYPE_REFRESH;
break;
case nsIContentPolicy::DOCUMENT:
type = EPHY_CONTENT_CHECK_TYPE_DOCUMENT;
break;
case nsIContentPolicy::OTHER:
case nsIContentPolicy::RAW_URL:
default:
type = EPHY_CONTENT_CHECK_TYPE_OTHER;
break;
}
gboolean result = FALSE;
g_signal_emit_by_name (mEmbedSingle, "check-content",
type,
contentSpec.get(),
"",
"",
&result);
*_retval = !result;
return NS_OK;
}
/* boolean shouldProcess (in PRInt32 contentType, in nsIURI documentLocation, in nsISupports ctxt, in nsIDOMWindow window); */
NS_IMETHODIMP EphyContentPolicy::ShouldProcess(PRInt32 contentType,
nsIURI *documentLocation,
nsISupports *ctxt,
nsIDOMWindow *window,
PRBool *_retval)
{
/* This is never called. */
LOG ("ShouldProcess: this is quite unexpected!");
*_retval = PR_TRUE;
return NS_OK;
}
#endif /* MOZ_NSICONTENTPOLICY_VARIANT == 2 */
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