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Just store the flags, not various booleans. Bug 342914, r=biesi, sr=darin

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bzbarsky%mit.edu 2006-06-29 16:18:01 +00:00
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173
netwerk/protocol/about/src/nsAboutRedirector.cpp
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@ -1,173 +0,0 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:set ts=4 sw=4 sts=4 et cindent: */
/* ***** 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) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Gagan Saksena (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
* 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 "nsAboutProtocolHandler.h"
#include "nsAboutRedirector.h"
#include "nsNetUtil.h"
#include "plstr.h"
#include "nsIScriptSecurityManager.h"
#include "nsAboutProtocolUtils.h"
#include "nsSimpleNestedURI.h"
NS_IMPL_ISUPPORTS1(nsAboutRedirector, nsIAboutModule)
struct RedirEntry {
const char* id;
const char* url;
PRBool dropChromePrivs; // if PR_TRUE, the page will not have chrome privileges
PRBool allowScripts; // if PR_TRUE, the page will be able to run scripts
// even if script is generally disabled and it
// doesn't have chrome privileges. Use sparingly!
};
/*
Entries with dropChromePrivs == PR_FALSE will run with chrome
privileges. This is potentially dangerous. Please use PR_TRUE
as the third argument to each map item below unless your about:
page really needs chrome privileges. Security review is required
before adding new map entries with dropChromePrivs == PR_FALSE.
*/
static RedirEntry kRedirMap[] = {
{ "credits", "http://www.mozilla.org/credits/", PR_TRUE, PR_FALSE },
{ "mozilla", "chrome://global/content/mozilla.xhtml", PR_TRUE, PR_FALSE },
{ "plugins", "chrome://global/content/plugins.html", PR_FALSE, PR_FALSE },
{ "config", "chrome://global/content/config.xul", PR_FALSE, PR_FALSE },
{ "logo", "chrome://global/content/logo.gif", PR_TRUE, PR_FALSE },
{ "buildconfig", "chrome://global/content/buildconfig.html",
PR_TRUE, PR_FALSE },
{ "license", "chrome://global/content/license.html", PR_TRUE, PR_FALSE },
{ "licence", "chrome://global/content/license.html", PR_TRUE, PR_FALSE },
{ "about", "chrome://global/content/aboutAbout.html", PR_FALSE, PR_FALSE },
{ "neterror", "chrome://global/content/netError.xhtml", PR_TRUE, PR_TRUE }
};
static const int kRedirTotal = NS_ARRAY_LENGTH(kRedirMap);
NS_IMETHODIMP
nsAboutRedirector::NewChannel(nsIURI *aURI, nsIChannel **result)
{
NS_ENSURE_ARG_POINTER(aURI);
NS_ASSERTION(result, "must not be null");
nsresult rv;
nsCAutoString path;
rv = NS_GetAboutModuleName(aURI, path);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIIOService> ioService = do_GetIOService(&rv);
if (NS_FAILED(rv))
return rv;
for (int i=0; i<kRedirTotal; i++)
{
if (!strcmp(path.get(), kRedirMap[i].id))
{
nsCOMPtr<nsIChannel> tempChannel;
rv = ioService->NewChannel(nsDependentCString(kRedirMap[i].url),
nsnull, nsnull, getter_AddRefs(tempChannel));
if (NS_FAILED(rv))
return rv;
tempChannel->SetOriginalURI(aURI);
// Keep the page from getting unnecessary privileges unless it needs them
if (kRedirMap[i].dropChromePrivs)
{
nsCOMPtr<nsIScriptSecurityManager> securityManager =
do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIPrincipal> principal;
rv = securityManager->GetCodebasePrincipal(aURI, getter_AddRefs(principal));
if (NS_FAILED(rv))
return rv;
rv = tempChannel->SetOwner(principal);
if (NS_FAILED(rv))
return rv;
}
NS_ADDREF(*result = tempChannel);
return rv;
}
}
NS_ERROR("nsAboutRedirector called for unknown case");
return NS_ERROR_ILLEGAL_VALUE;
}
NS_IMETHODIMP
nsAboutRedirector::GetURIFlags(nsIURI *aURI, PRUint32 *result)
{
NS_ENSURE_ARG_POINTER(aURI);
nsCAutoString name;
nsresult rv = NS_GetAboutModuleName(aURI, name);
NS_ENSURE_SUCCESS(rv, rv);
for (int i=0; i < kRedirTotal; i++)
{
if (name.EqualsASCII(kRedirMap[i].id))
{
*result = kRedirMap[i].dropChromePrivs ?
nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT : 0;
if (kRedirMap[i].allowScripts) {
*result |= nsIAboutModule::ALLOW_SCRIPT;
}
return NS_OK;
}
}
NS_ERROR("nsAboutRedirector called for unknown case");
return NS_ERROR_ILLEGAL_VALUE;
}
NS_METHOD
nsAboutRedirector::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
{
nsAboutRedirector* about = new nsAboutRedirector();
if (about == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(about);
nsresult rv = about->QueryInterface(aIID, aResult);
NS_RELEASE(about);
return rv;
}