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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// See also: docshell/base/nsAboutRedirector.cpp
#include "AboutRedirector.h"
#include "nsNetUtil.h"
#include "nsIAboutNewTabService.h"
#include "nsIChannel.h"
#include "nsIURI.h"
#include "nsIScriptSecurityManager.h"
#include "nsIProtocolHandler.h"
#include "mozilla/ArrayUtils.h"
#include "nsServiceManagerUtils.h"
namespace mozilla {
namespace browser {
NS_IMPL_ISUPPORTS(AboutRedirector, nsIAboutModule)
struct RedirEntry {
const char* id;
const char* url;
uint32_t flags;
};
/*
Entries which do not have URI_SAFE_FOR_UNTRUSTED_CONTENT will run with chrome
privileges. This is potentially dangerous. Please use
URI_SAFE_FOR_UNTRUSTED_CONTENT in 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 without
URI_SAFE_FOR_UNTRUSTED_CONTENT.
*/
static RedirEntry kRedirMap[] = {
{ "blocked", "chrome://browser/content/blockedSite.xhtml",
nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
nsIAboutModule::URI_CAN_LOAD_IN_CHILD |
nsIAboutModule::ALLOW_SCRIPT |
nsIAboutModule::HIDE_FROM_ABOUTABOUT },
{ "certerror", "chrome://browser/content/aboutNetError.xhtml",
nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
nsIAboutModule::URI_CAN_LOAD_IN_CHILD |
nsIAboutModule::ALLOW_SCRIPT |
nsIAboutModule::HIDE_FROM_ABOUTABOUT },
{ "socialerror", "chrome://browser/content/aboutSocialError.xhtml",
nsIAboutModule::ALLOW_SCRIPT |
nsIAboutModule::HIDE_FROM_ABOUTABOUT },
{ "providerdirectory", "chrome://browser/content/aboutProviderDirectory.xhtml",
nsIAboutModule::ALLOW_SCRIPT |
nsIAboutModule::HIDE_FROM_ABOUTABOUT },
{ "tabcrashed", "chrome://browser/content/aboutTabCrashed.xhtml",
nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
nsIAboutModule::ALLOW_SCRIPT |
nsIAboutModule::HIDE_FROM_ABOUTABOUT },
{ "feeds", "chrome://browser/content/feeds/subscribe.xhtml",
nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
nsIAboutModule::ALLOW_SCRIPT |
nsIAboutModule::HIDE_FROM_ABOUTABOUT },
{ "privatebrowsing", "chrome://browser/content/aboutPrivateBrowsing.xhtml",
nsIAboutModule::URI_MUST_LOAD_IN_CHILD |
nsIAboutModule::ALLOW_SCRIPT },
{ "rights",
"chrome://global/content/aboutRights.xhtml",
nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
nsIAboutModule::MAKE_LINKABLE |
nsIAboutModule::ALLOW_SCRIPT },
{ "robots", "chrome://browser/content/aboutRobots.xhtml",
nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
nsIAboutModule::ALLOW_SCRIPT },
{ "searchreset", "chrome://browser/content/search/searchReset.xhtml",
nsIAboutModule::ALLOW_SCRIPT |
nsIAboutModule::HIDE_FROM_ABOUTABOUT },
{ "sessionrestore", "chrome://browser/content/aboutSessionRestore.xhtml",
nsIAboutModule::ALLOW_SCRIPT },
{ "welcomeback", "chrome://browser/content/aboutWelcomeBack.xhtml",
nsIAboutModule::ALLOW_SCRIPT },
{ "sync-tabs", "chrome://browser/content/sync/aboutSyncTabs.xul",
nsIAboutModule::ALLOW_SCRIPT },
// Linkable because of indexeddb use (bug 1228118)
{ "home", "chrome://browser/content/abouthome/aboutHome.xhtml",
nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
nsIAboutModule::URI_MUST_LOAD_IN_CHILD |
nsIAboutModule::ALLOW_SCRIPT |
nsIAboutModule::MAKE_LINKABLE |
nsIAboutModule::ENABLE_INDEXED_DB },
// the newtab's actual URL will be determined when the channel is created
{ "newtab", "about:blank",
nsIAboutModule::ALLOW_SCRIPT },
{ "preferences", "chrome://browser/content/preferences/in-content/preferences.xul",
nsIAboutModule::ALLOW_SCRIPT },
{ "downloads", "chrome://browser/content/downloads/contentAreaDownloadsView.xul",
nsIAboutModule::ALLOW_SCRIPT },
#ifdef MOZ_SERVICES_HEALTHREPORT
{ "healthreport", "chrome://browser/content/abouthealthreport/abouthealth.xhtml",
nsIAboutModule::ALLOW_SCRIPT },
#endif
{ "accounts", "chrome://browser/content/aboutaccounts/aboutaccounts.xhtml",
nsIAboutModule::ALLOW_SCRIPT },
{ "reader", "chrome://global/content/reader/aboutReader.html",
nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
nsIAboutModule::ALLOW_SCRIPT |
nsIAboutModule::URI_MUST_LOAD_IN_CHILD |
nsIAboutModule::HIDE_FROM_ABOUTABOUT },
};
static const int kRedirTotal = ArrayLength(kRedirMap);
static nsAutoCString
GetAboutModuleName(nsIURI *aURI)
{
nsAutoCString path;
aURI->GetPath(path);
int32_t f = path.FindChar('#');
if (f >= 0)
path.SetLength(f);
f = path.FindChar('?');
if (f >= 0)
path.SetLength(f);
ToLowerCase(path);
return path;
}
NS_IMETHODIMP
AboutRedirector::NewChannel(nsIURI* aURI,
nsILoadInfo* aLoadInfo,
nsIChannel** result)
{
NS_ENSURE_ARG_POINTER(aURI);
NS_ASSERTION(result, "must not be null");
nsAutoCString path = GetAboutModuleName(aURI);
nsresult rv;
nsCOMPtr<nsIIOService> ioService = do_GetIOService(&rv);
NS_ENSURE_SUCCESS(rv, rv);
for (int i = 0; i < kRedirTotal; i++) {
if (!strcmp(path.get(), kRedirMap[i].id)) {
nsAutoCString url;
if (path.EqualsLiteral("newtab")) {
// let the aboutNewTabService decide where to redirect
nsCOMPtr<nsIAboutNewTabService> aboutNewTabService =
do_GetService("@mozilla.org/browser/aboutnewtab-service;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
rv = aboutNewTabService->GetDefaultURL(url);
NS_ENSURE_SUCCESS(rv, rv);
// if about:newtab points to an external resource we have to make sure
// the content is signed and trusted
bool remoteEnabled = false;
rv = aboutNewTabService->GetRemoteEnabled(&remoteEnabled);
NS_ENSURE_SUCCESS(rv, rv);
if (remoteEnabled) {
NS_ENSURE_ARG_POINTER(aLoadInfo);
aLoadInfo->SetVerifySignedContent(true);
}
}
// fall back to the specified url in the map
if (url.IsEmpty()) {
url.AssignASCII(kRedirMap[i].url);
}
nsCOMPtr<nsIChannel> tempChannel;
nsCOMPtr<nsIURI> tempURI;
rv = NS_NewURI(getter_AddRefs(tempURI), url);
NS_ENSURE_SUCCESS(rv, rv);
// If tempURI links to an external URI (i.e. something other than
// chrome:// or resource://) then set the LOAD_REPLACE flag on the
// channel which forces the channel owner to reflect the displayed
// URL rather then being the systemPrincipal.
bool isUIResource = false;
rv = NS_URIChainHasFlags(tempURI, nsIProtocolHandler::URI_IS_UI_RESOURCE,
&isUIResource);
NS_ENSURE_SUCCESS(rv, rv);
nsLoadFlags loadFlags = isUIResource
? static_cast<nsLoadFlags>(nsIChannel::LOAD_NORMAL)
: static_cast<nsLoadFlags>(nsIChannel::LOAD_REPLACE);
rv = NS_NewChannelInternal(getter_AddRefs(tempChannel),
tempURI,
aLoadInfo,
nullptr, // aLoadGroup
nullptr, // aCallbacks
loadFlags);
NS_ENSURE_SUCCESS(rv, rv);
tempChannel->SetOriginalURI(aURI);
NS_ADDREF(*result = tempChannel);
return rv;
}
}
return NS_ERROR_ILLEGAL_VALUE;
}
NS_IMETHODIMP
AboutRedirector::GetURIFlags(nsIURI *aURI, uint32_t *result)
{
NS_ENSURE_ARG_POINTER(aURI);
nsAutoCString name = GetAboutModuleName(aURI);
for (int i = 0; i < kRedirTotal; i++) {
if (name.Equals(kRedirMap[i].id)) {
*result = kRedirMap[i].flags;
return NS_OK;
}
}
return NS_ERROR_ILLEGAL_VALUE;
}
nsresult
AboutRedirector::Create(nsISupports *aOuter, REFNSIID aIID, void **result)
{
AboutRedirector* about = new AboutRedirector();
if (about == nullptr)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(about);
nsresult rv = about->QueryInterface(aIID, result);
NS_RELEASE(about);
return rv;
}
} // namespace browser
} // namespace mozilla
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