forked from mirrors/gecko-dev
240 lines
7.3 KiB
C++
240 lines
7.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsAboutRedirector.h"
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#include "nsNetUtil.h"
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#include "nsAboutProtocolUtils.h"
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#include "mozilla/ArrayUtils.h"
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#include "nsIProtocolHandler.h"
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NS_IMPL_ISUPPORTS(nsAboutRedirector, nsIAboutModule)
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struct RedirEntry
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{
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const char* id;
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const char* url;
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uint32_t flags;
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};
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/*
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Entries which do not have URI_SAFE_FOR_UNTRUSTED_CONTENT will run with chrome
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privileges. This is potentially dangerous. Please use
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URI_SAFE_FOR_UNTRUSTED_CONTENT in the third argument to each map item below
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unless your about: page really needs chrome privileges. Security review is
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required before adding new map entries without
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URI_SAFE_FOR_UNTRUSTED_CONTENT.
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URI_SAFE_FOR_UNTRUSTED_CONTENT is not enough to let web pages load that page,
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for that you need MAKE_LINKABLE.
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*/
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static const RedirEntry kRedirMap[] = {
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{ "about", "chrome://global/content/aboutAbout.xhtml", 0 },
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{
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"addons", "chrome://mozapps/content/extensions/extensions.xul",
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nsIAboutModule::ALLOW_SCRIPT
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},
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{
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"buildconfig", "chrome://global/content/buildconfig.html",
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nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT
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},
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{
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"checkerboard", "chrome://global/content/aboutCheckerboard.xhtml",
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nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
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nsIAboutModule::ALLOW_SCRIPT
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},
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{ "config", "chrome://global/content/config.xul", 0 },
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#ifdef MOZ_CRASHREPORTER
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{ "crashes", "chrome://global/content/crashes.xhtml", 0 },
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#endif
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{
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"credits", "https://www.mozilla.org/credits/",
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nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT
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},
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{
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"license", "chrome://global/content/license.html",
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nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
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nsIAboutModule::MAKE_LINKABLE
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},
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{
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"logo", "chrome://branding/content/about.png",
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nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
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// Linkable for testing reasons.
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nsIAboutModule::MAKE_LINKABLE
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},
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{
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"memory", "chrome://global/content/aboutMemory.xhtml",
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nsIAboutModule::ALLOW_SCRIPT
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},
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{
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"mozilla", "chrome://global/content/mozilla.xhtml",
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nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT
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},
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{
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"neterror", "chrome://global/content/netError.xhtml",
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nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
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nsIAboutModule::URI_CAN_LOAD_IN_CHILD |
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nsIAboutModule::ALLOW_SCRIPT |
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nsIAboutModule::HIDE_FROM_ABOUTABOUT
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},
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{
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"networking", "chrome://global/content/aboutNetworking.xhtml",
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nsIAboutModule::ALLOW_SCRIPT
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},
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{
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"performance", "chrome://global/content/aboutPerformance.xhtml",
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nsIAboutModule::ALLOW_SCRIPT
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},
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{
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"plugins", "chrome://global/content/plugins.html",
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nsIAboutModule::URI_MUST_LOAD_IN_CHILD
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},
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{
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"serviceworkers", "chrome://global/content/aboutServiceWorkers.xhtml",
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nsIAboutModule::URI_CAN_LOAD_IN_CHILD |
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nsIAboutModule::URI_MUST_LOAD_IN_CHILD |
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nsIAboutModule::ALLOW_SCRIPT
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},
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#ifndef ANDROID
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{
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"profiles", "chrome://global/content/aboutProfiles.xhtml",
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nsIAboutModule::ALLOW_SCRIPT
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},
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#endif
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// about:srcdoc is unresolvable by specification. It is included here
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// because the security manager would disallow srcdoc iframes otherwise.
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{
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"srcdoc", "about:blank",
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nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
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nsIAboutModule::HIDE_FROM_ABOUTABOUT |
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// Needs to be linkable so content can touch its own srcdoc frames
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nsIAboutModule::MAKE_LINKABLE |
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nsIAboutModule::URI_CAN_LOAD_IN_CHILD
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},
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{
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"support", "chrome://global/content/aboutSupport.xhtml",
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nsIAboutModule::ALLOW_SCRIPT
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},
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{
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"telemetry", "chrome://global/content/aboutTelemetry.xhtml",
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nsIAboutModule::ALLOW_SCRIPT
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},
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{
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"url-classifier", "chrome://global/content/aboutUrlClassifier.xhtml",
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nsIAboutModule::ALLOW_SCRIPT
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},
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{
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"webrtc", "chrome://global/content/aboutwebrtc/aboutWebrtc.html",
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nsIAboutModule::ALLOW_SCRIPT
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},
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{
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"printpreview", "about:blank",
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nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
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nsIAboutModule::HIDE_FROM_ABOUTABOUT |
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nsIAboutModule::URI_CAN_LOAD_IN_CHILD
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},
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{
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"crashparent", "about:blank",
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nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
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nsIAboutModule::HIDE_FROM_ABOUTABOUT
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},
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{
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"crashcontent", "about:blank",
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nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
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nsIAboutModule::HIDE_FROM_ABOUTABOUT |
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nsIAboutModule::URI_CAN_LOAD_IN_CHILD |
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nsIAboutModule::URI_MUST_LOAD_IN_CHILD
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}
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};
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static const int kRedirTotal = mozilla::ArrayLength(kRedirMap);
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NS_IMETHODIMP
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nsAboutRedirector::NewChannel(nsIURI* aURI,
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nsILoadInfo* aLoadInfo,
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nsIChannel** aResult)
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{
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NS_ENSURE_ARG_POINTER(aURI);
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NS_ENSURE_ARG_POINTER(aLoadInfo);
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NS_ASSERTION(aResult, "must not be null");
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nsAutoCString path;
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nsresult rv = NS_GetAboutModuleName(aURI, path);
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIIOService> ioService = do_GetIOService(&rv);
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NS_ENSURE_SUCCESS(rv, rv);
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if (XRE_IsParentProcess() && path.EqualsASCII("crashparent")) {
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MOZ_CRASH("Crash via about:crashparent");
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}
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if (XRE_IsContentProcess() && path.EqualsASCII("crashcontent")) {
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MOZ_CRASH("Crash via about:crashcontent");
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}
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for (int i = 0; i < kRedirTotal; i++) {
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if (!strcmp(path.get(), kRedirMap[i].id)) {
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nsCOMPtr<nsIChannel> tempChannel;
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nsCOMPtr<nsIURI> tempURI;
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rv = NS_NewURI(getter_AddRefs(tempURI), kRedirMap[i].url);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = NS_NewChannelInternal(getter_AddRefs(tempChannel),
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tempURI,
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aLoadInfo);
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NS_ENSURE_SUCCESS(rv, rv);
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// If tempURI links to an external URI (i.e. something other than
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// chrome:// or resource://) then set result principal URI on the
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// load info which forces the channel principal to reflect the displayed
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// URL rather then being the systemPrincipal.
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bool isUIResource = false;
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rv = NS_URIChainHasFlags(tempURI, nsIProtocolHandler::URI_IS_UI_RESOURCE,
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&isUIResource);
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NS_ENSURE_SUCCESS(rv, rv);
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bool isAboutBlank = NS_IsAboutBlank(tempURI);
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if (!isUIResource && !isAboutBlank) {
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aLoadInfo->SetResultPrincipalURI(tempURI);
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}
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tempChannel->SetOriginalURI(aURI);
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tempChannel.forget(aResult);
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return rv;
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}
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}
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NS_ERROR("nsAboutRedirector called for unknown case");
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return NS_ERROR_ILLEGAL_VALUE;
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}
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NS_IMETHODIMP
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nsAboutRedirector::GetURIFlags(nsIURI* aURI, uint32_t* aResult)
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{
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NS_ENSURE_ARG_POINTER(aURI);
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nsAutoCString name;
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nsresult rv = NS_GetAboutModuleName(aURI, name);
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NS_ENSURE_SUCCESS(rv, rv);
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for (int i = 0; i < kRedirTotal; i++) {
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if (name.EqualsASCII(kRedirMap[i].id)) {
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*aResult = kRedirMap[i].flags;
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return NS_OK;
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}
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}
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NS_ERROR("nsAboutRedirector called for unknown case");
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return NS_ERROR_ILLEGAL_VALUE;
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}
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nsresult
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nsAboutRedirector::Create(nsISupports* aOuter, REFNSIID aIID, void** aResult)
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{
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RefPtr<nsAboutRedirector> about = new nsAboutRedirector();
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return about->QueryInterface(aIID, aResult);
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}
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