зеркало из https://github.com/mozilla/gecko-dev.git
2486 строки
77 KiB
C++
2486 строки
77 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 "ScriptLoader.h"
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#include <algorithm>
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#include "nsIChannel.h"
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#include "nsIContentPolicy.h"
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#include "nsIContentSecurityPolicy.h"
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#include "nsIDocShell.h"
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#include "nsIHttpChannel.h"
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#include "nsIHttpChannelInternal.h"
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#include "nsIInputStreamPump.h"
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#include "nsIIOService.h"
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#include "nsIOService.h"
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#include "nsIProtocolHandler.h"
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#include "nsIScriptError.h"
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#include "nsIScriptSecurityManager.h"
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#include "nsIStreamLoader.h"
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#include "nsIStreamListenerTee.h"
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#include "nsIThreadRetargetableRequest.h"
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#include "nsIURI.h"
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#include "jsapi.h"
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#include "jsfriendapi.h"
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#include "js/CompilationAndEvaluation.h"
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#include "js/SourceText.h"
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#include "nsError.h"
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#include "nsContentPolicyUtils.h"
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#include "nsContentUtils.h"
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#include "nsDocShellCID.h"
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#include "nsISupportsPrimitives.h"
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#include "nsNetUtil.h"
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#include "nsIPipe.h"
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#include "nsIOutputStream.h"
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#include "nsPrintfCString.h"
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#include "nsString.h"
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#include "nsStreamUtils.h"
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#include "nsTArray.h"
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#include "nsThreadUtils.h"
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#include "nsXPCOM.h"
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#include "xpcpublic.h"
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#include "mozilla/Assertions.h"
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#include "mozilla/LoadContext.h"
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#include "mozilla/Maybe.h"
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#include "mozilla/ipc/BackgroundUtils.h"
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#include "mozilla/dom/BlobURLProtocolHandler.h"
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#include "mozilla/dom/CacheBinding.h"
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#include "mozilla/dom/cache/CacheTypes.h"
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#include "mozilla/dom/cache/Cache.h"
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#include "mozilla/dom/cache/CacheStorage.h"
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#include "mozilla/dom/ChannelInfo.h"
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#include "mozilla/dom/ClientChannelHelper.h"
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#include "mozilla/dom/ClientInfo.h"
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#include "mozilla/dom/Exceptions.h"
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#include "mozilla/dom/InternalResponse.h"
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#include "mozilla/dom/nsCSPService.h"
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#include "mozilla/dom/nsCSPUtils.h"
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#include "mozilla/dom/PerformanceStorage.h"
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#include "mozilla/dom/Promise.h"
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#include "mozilla/dom/PromiseNativeHandler.h"
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#include "mozilla/dom/Response.h"
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#include "mozilla/dom/ScriptLoader.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "mozilla/dom/SRILogHelper.h"
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#include "mozilla/dom/ServiceWorkerBinding.h"
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#include "mozilla/dom/ServiceWorkerManager.h"
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#include "mozilla/UniquePtr.h"
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#include "Principal.h"
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#include "WorkerHolder.h"
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#include "WorkerPrivate.h"
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#include "WorkerRunnable.h"
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#include "WorkerScope.h"
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#define MAX_CONCURRENT_SCRIPTS 1000
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using mozilla::dom::cache::Cache;
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using mozilla::dom::cache::CacheStorage;
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using mozilla::ipc::PrincipalInfo;
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namespace mozilla {
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namespace dom {
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namespace {
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nsIURI*
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GetBaseURI(bool aIsMainScript, WorkerPrivate* aWorkerPrivate)
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{
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MOZ_ASSERT(aWorkerPrivate);
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nsIURI* baseURI;
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WorkerPrivate* parentWorker = aWorkerPrivate->GetParent();
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if (aIsMainScript) {
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if (parentWorker) {
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baseURI = parentWorker->GetBaseURI();
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NS_ASSERTION(baseURI, "Should have been set already!");
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}
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else {
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// May be null.
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baseURI = aWorkerPrivate->GetBaseURI();
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}
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}
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else {
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baseURI = aWorkerPrivate->GetBaseURI();
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NS_ASSERTION(baseURI, "Should have been set already!");
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}
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return baseURI;
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}
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nsresult
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ConstructURI(const nsAString& aScriptURL, nsIURI* baseURI,
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nsIDocument* parentDoc, bool aDefaultURIEncoding,
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nsIURI** aResult)
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{
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nsresult rv;
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if (aDefaultURIEncoding) {
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rv = NS_NewURI(aResult, aScriptURL, nullptr, baseURI);
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} else {
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rv = nsContentUtils::NewURIWithDocumentCharset(aResult,
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aScriptURL, parentDoc,
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baseURI);
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}
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if (NS_FAILED(rv)) {
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return NS_ERROR_DOM_SYNTAX_ERR;
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}
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return NS_OK;
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}
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nsresult
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ChannelFromScriptURL(nsIPrincipal* principal,
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nsIDocument* parentDoc,
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WorkerPrivate* aWorkerPrivate,
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nsILoadGroup* loadGroup,
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nsIIOService* ios,
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nsIScriptSecurityManager* secMan,
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nsIURI* aScriptURL,
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const Maybe<ClientInfo>& aClientInfo,
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const Maybe<ServiceWorkerDescriptor>& aController,
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bool aIsMainScript,
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WorkerScriptType aWorkerScriptType,
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nsContentPolicyType aMainScriptContentPolicyType,
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nsLoadFlags aLoadFlags,
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nsIChannel** aChannel)
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{
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AssertIsOnMainThread();
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nsresult rv;
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nsCOMPtr<nsIURI> uri = aScriptURL;
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// If we have the document, use it. Unfortunately, for dedicated workers
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// 'parentDoc' ends up being the parent document, which is not the document
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// that we want to use. So make sure to avoid using 'parentDoc' in that
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// situation.
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if (parentDoc && parentDoc->NodePrincipal() != principal) {
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parentDoc = nullptr;
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}
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aLoadFlags |= nsIChannel::LOAD_CLASSIFY_URI;
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uint32_t secFlags = aIsMainScript ? nsILoadInfo::SEC_REQUIRE_SAME_ORIGIN_DATA_IS_BLOCKED
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: nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_INHERITS;
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bool inheritAttrs = nsContentUtils::ChannelShouldInheritPrincipal(
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principal, uri, true /* aInheritForAboutBlank */, false /* aForceInherit */);
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bool isData = false;
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rv = uri->SchemeIs("data", &isData);
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NS_ENSURE_SUCCESS(rv, rv);
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bool isURIUniqueOrigin = net::nsIOService::IsDataURIUniqueOpaqueOrigin() && isData;
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if (inheritAttrs && !isURIUniqueOrigin) {
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secFlags |= nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL;
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}
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if (aWorkerScriptType == DebuggerScript) {
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// A DebuggerScript needs to be a local resource like chrome: or resource:
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bool isUIResource = false;
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rv = NS_URIChainHasFlags(uri, nsIProtocolHandler::URI_IS_UI_RESOURCE,
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&isUIResource);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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if (!isUIResource) {
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return NS_ERROR_DOM_SECURITY_ERR;
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}
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secFlags |= nsILoadInfo::SEC_ALLOW_CHROME;
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}
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// Note: this is for backwards compatibility and goes against spec.
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// We should find a better solution.
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if (aIsMainScript && isData) {
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secFlags = nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL;
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}
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nsContentPolicyType contentPolicyType =
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aIsMainScript ? aMainScriptContentPolicyType
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: nsIContentPolicy::TYPE_INTERNAL_WORKER_IMPORT_SCRIPTS;
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// The main service worker script should never be loaded over the network
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// in this path. It should always be offlined by ServiceWorkerScriptCache.
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// We assert here since this error should also be caught by the runtime
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// check in CacheScriptLoader.
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//
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// Note, if we ever allow service worker scripts to be loaded from network
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// here we need to configure the channel properly. For example, it must
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// not allow redirects.
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MOZ_DIAGNOSTIC_ASSERT(contentPolicyType !=
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nsIContentPolicy::TYPE_INTERNAL_SERVICE_WORKER);
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nsCOMPtr<nsIChannel> channel;
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// If we have the document, use it. Unfortunately, for dedicated workers
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// 'parentDoc' ends up being the parent document, which is not the document
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// that we want to use. So make sure to avoid using 'parentDoc' in that
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// situation.
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if (parentDoc && parentDoc->NodePrincipal() == principal) {
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rv = NS_NewChannel(getter_AddRefs(channel),
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uri,
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parentDoc,
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secFlags,
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contentPolicyType,
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nullptr, // aPerformanceStorage
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loadGroup,
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nullptr, // aCallbacks
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aLoadFlags,
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ios);
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NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_SECURITY_ERR);
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} else {
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// We must have a loadGroup with a load context for the principal to
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// traverse the channel correctly.
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MOZ_ASSERT(loadGroup);
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MOZ_ASSERT(NS_LoadGroupMatchesPrincipal(loadGroup, principal));
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RefPtr<PerformanceStorage> performanceStorage;
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nsCOMPtr<nsICSPEventListener> cspEventListener;
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if (aWorkerPrivate && !aIsMainScript) {
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performanceStorage = aWorkerPrivate->GetPerformanceStorage();
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cspEventListener = aWorkerPrivate->CSPEventListener();
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}
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if (aClientInfo.isSome()) {
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rv = NS_NewChannel(getter_AddRefs(channel),
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uri,
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principal,
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aClientInfo.ref(),
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aController,
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secFlags,
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contentPolicyType,
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performanceStorage,
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loadGroup,
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nullptr, // aCallbacks
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aLoadFlags,
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ios);
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} else {
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rv = NS_NewChannel(getter_AddRefs(channel),
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uri,
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principal,
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secFlags,
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contentPolicyType,
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performanceStorage,
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loadGroup,
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nullptr, // aCallbacks
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aLoadFlags,
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ios);
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}
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NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_SECURITY_ERR);
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if (cspEventListener) {
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nsCOMPtr<nsILoadInfo> loadInfo = channel->GetLoadInfo();
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if (NS_WARN_IF(!loadInfo)) {
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return NS_ERROR_UNEXPECTED;
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}
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rv = loadInfo->SetCspEventListener(cspEventListener);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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}
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if (nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(channel)) {
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mozilla::net::ReferrerPolicy referrerPolicy = parentDoc ?
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parentDoc->GetReferrerPolicy() : mozilla::net::RP_Unset;
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rv = nsContentUtils::SetFetchReferrerURIWithPolicy(principal, parentDoc,
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httpChannel, referrerPolicy);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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}
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channel.forget(aChannel);
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return rv;
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}
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struct ScriptLoadInfo
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{
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ScriptLoadInfo()
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: mScriptTextBuf(nullptr)
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, mScriptTextLength(0)
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, mLoadResult(NS_ERROR_NOT_INITIALIZED)
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, mLoadingFinished(false)
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, mExecutionScheduled(false)
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, mExecutionResult(false)
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, mCacheStatus(Uncached)
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, mLoadFlags(nsIRequest::LOAD_NORMAL)
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{ }
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~ScriptLoadInfo()
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{
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if (mScriptTextBuf) {
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js_free(mScriptTextBuf);
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}
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}
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nsString mURL;
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// This full URL string is populated only if this object is used in a
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// ServiceWorker.
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nsString mFullURL;
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// This promise is set only when the script is for a ServiceWorker but
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// it's not in the cache yet. The promise is resolved when the full body is
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// stored into the cache. mCachePromise will be set to nullptr after
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// resolution.
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RefPtr<Promise> mCachePromise;
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// The reader stream the cache entry should be filled from, for those cases
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// when we're going to have an mCachePromise.
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nsCOMPtr<nsIInputStream> mCacheReadStream;
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nsCOMPtr<nsIChannel> mChannel;
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Maybe<ClientInfo> mReservedClientInfo;
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char16_t* mScriptTextBuf;
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size_t mScriptTextLength;
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nsresult mLoadResult;
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bool mLoadingFinished;
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bool mExecutionScheduled;
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bool mExecutionResult;
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enum CacheStatus {
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// By default a normal script is just loaded from the network. But for
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// ServiceWorkers, we have to check if the cache contains the script and
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// load it from the cache.
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Uncached,
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WritingToCache,
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ReadingFromCache,
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// This script has been loaded from the ServiceWorker cache.
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Cached,
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// This script must be stored in the ServiceWorker cache.
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ToBeCached,
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// Something went wrong or the worker went away.
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Cancel
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};
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CacheStatus mCacheStatus;
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nsLoadFlags mLoadFlags;
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Maybe<bool> mMutedErrorFlag;
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bool Finished() const
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{
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return mLoadingFinished && !mCachePromise && !mChannel;
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}
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};
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class ScriptLoaderRunnable;
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class ScriptExecutorRunnable final : public MainThreadWorkerSyncRunnable
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{
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ScriptLoaderRunnable& mScriptLoader;
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bool mIsWorkerScript;
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uint32_t mFirstIndex;
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uint32_t mLastIndex;
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public:
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ScriptExecutorRunnable(ScriptLoaderRunnable& aScriptLoader,
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nsIEventTarget* aSyncLoopTarget,
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bool aIsWorkerScript,
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uint32_t aFirstIndex,
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uint32_t aLastIndex);
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private:
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~ScriptExecutorRunnable()
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{ }
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virtual bool
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IsDebuggerRunnable() const override;
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virtual bool
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PreRun(WorkerPrivate* aWorkerPrivate) override;
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virtual bool
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WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override;
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virtual void
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PostRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate, bool aRunResult)
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override;
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nsresult
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Cancel() override;
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void
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ShutdownScriptLoader(JSContext* aCx,
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WorkerPrivate* aWorkerPrivate,
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bool aResult,
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bool aMutedError);
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void LogExceptionToConsole(JSContext* aCx,
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WorkerPrivate* WorkerPrivate);
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};
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class CacheScriptLoader;
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class CacheCreator final : public PromiseNativeHandler
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{
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public:
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NS_DECL_ISUPPORTS
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explicit CacheCreator(WorkerPrivate* aWorkerPrivate)
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: mCacheName(aWorkerPrivate->ServiceWorkerCacheName())
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, mOriginAttributes(aWorkerPrivate->GetOriginAttributes())
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{
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MOZ_ASSERT(aWorkerPrivate->IsServiceWorker());
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AssertIsOnMainThread();
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}
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void
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AddLoader(CacheScriptLoader* aLoader)
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{
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AssertIsOnMainThread();
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MOZ_ASSERT(!mCacheStorage);
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mLoaders.AppendElement(aLoader);
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}
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virtual void
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ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) override;
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virtual void
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RejectedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) override;
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// Try to load from cache with aPrincipal used for cache access.
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nsresult
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Load(nsIPrincipal* aPrincipal);
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Cache*
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Cache_() const
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{
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AssertIsOnMainThread();
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MOZ_ASSERT(mCache);
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return mCache;
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}
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nsIGlobalObject*
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Global() const
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{
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AssertIsOnMainThread();
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MOZ_ASSERT(mSandboxGlobalObject);
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return mSandboxGlobalObject;
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}
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void
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DeleteCache();
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private:
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~CacheCreator()
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{
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}
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nsresult
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CreateCacheStorage(nsIPrincipal* aPrincipal);
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void
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FailLoaders(nsresult aRv);
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RefPtr<Cache> mCache;
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RefPtr<CacheStorage> mCacheStorage;
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nsCOMPtr<nsIGlobalObject> mSandboxGlobalObject;
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nsTArray<RefPtr<CacheScriptLoader>> mLoaders;
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nsString mCacheName;
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OriginAttributes mOriginAttributes;
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};
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NS_IMPL_ISUPPORTS0(CacheCreator)
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class CacheScriptLoader final : public PromiseNativeHandler
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, public nsIStreamLoaderObserver
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{
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public:
|
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NS_DECL_ISUPPORTS
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NS_DECL_NSISTREAMLOADEROBSERVER
|
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|
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CacheScriptLoader(WorkerPrivate* aWorkerPrivate, ScriptLoadInfo& aLoadInfo,
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uint32_t aIndex, bool aIsWorkerScript,
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ScriptLoaderRunnable* aRunnable)
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: mLoadInfo(aLoadInfo)
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, mIndex(aIndex)
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, mRunnable(aRunnable)
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, mIsWorkerScript(aIsWorkerScript)
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, mFailed(false)
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, mState(aWorkerPrivate->GetServiceWorkerDescriptor().State())
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{
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MOZ_ASSERT(aWorkerPrivate);
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MOZ_ASSERT(aWorkerPrivate->IsServiceWorker());
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mMainThreadEventTarget = aWorkerPrivate->MainThreadEventTarget();
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MOZ_ASSERT(mMainThreadEventTarget);
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mBaseURI = GetBaseURI(mIsWorkerScript, aWorkerPrivate);
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AssertIsOnMainThread();
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}
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void
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Fail(nsresult aRv);
|
||
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void
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Load(Cache* aCache);
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|
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virtual void
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ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) override;
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||
|
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virtual void
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||
RejectedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) override;
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||
|
||
private:
|
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~CacheScriptLoader()
|
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{
|
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AssertIsOnMainThread();
|
||
}
|
||
|
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ScriptLoadInfo& mLoadInfo;
|
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uint32_t mIndex;
|
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RefPtr<ScriptLoaderRunnable> mRunnable;
|
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bool mIsWorkerScript;
|
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bool mFailed;
|
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const ServiceWorkerState mState;
|
||
nsCOMPtr<nsIInputStreamPump> mPump;
|
||
nsCOMPtr<nsIURI> mBaseURI;
|
||
mozilla::dom::ChannelInfo mChannelInfo;
|
||
UniquePtr<PrincipalInfo> mPrincipalInfo;
|
||
nsCString mCSPHeaderValue;
|
||
nsCString mCSPReportOnlyHeaderValue;
|
||
nsCString mReferrerPolicyHeaderValue;
|
||
nsCOMPtr<nsIEventTarget> mMainThreadEventTarget;
|
||
};
|
||
|
||
NS_IMPL_ISUPPORTS(CacheScriptLoader, nsIStreamLoaderObserver)
|
||
|
||
class CachePromiseHandler final : public PromiseNativeHandler
|
||
{
|
||
public:
|
||
NS_DECL_ISUPPORTS
|
||
|
||
CachePromiseHandler(ScriptLoaderRunnable* aRunnable,
|
||
ScriptLoadInfo& aLoadInfo,
|
||
uint32_t aIndex)
|
||
: mRunnable(aRunnable)
|
||
, mLoadInfo(aLoadInfo)
|
||
, mIndex(aIndex)
|
||
{
|
||
AssertIsOnMainThread();
|
||
MOZ_ASSERT(mRunnable);
|
||
}
|
||
|
||
virtual void
|
||
ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) override;
|
||
|
||
virtual void
|
||
RejectedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) override;
|
||
|
||
private:
|
||
~CachePromiseHandler()
|
||
{
|
||
AssertIsOnMainThread();
|
||
}
|
||
|
||
RefPtr<ScriptLoaderRunnable> mRunnable;
|
||
ScriptLoadInfo& mLoadInfo;
|
||
uint32_t mIndex;
|
||
};
|
||
|
||
NS_IMPL_ISUPPORTS0(CachePromiseHandler)
|
||
|
||
class LoaderListener final : public nsIStreamLoaderObserver
|
||
, public nsIRequestObserver
|
||
{
|
||
public:
|
||
NS_DECL_ISUPPORTS
|
||
|
||
LoaderListener(ScriptLoaderRunnable* aRunnable, uint32_t aIndex)
|
||
: mRunnable(aRunnable)
|
||
, mIndex(aIndex)
|
||
{
|
||
MOZ_ASSERT(mRunnable);
|
||
}
|
||
|
||
NS_IMETHOD
|
||
OnStreamComplete(nsIStreamLoader* aLoader, nsISupports* aContext,
|
||
nsresult aStatus, uint32_t aStringLen,
|
||
const uint8_t* aString) override;
|
||
|
||
NS_IMETHOD
|
||
OnStartRequest(nsIRequest* aRequest, nsISupports* aContext) override;
|
||
|
||
NS_IMETHOD
|
||
OnStopRequest(nsIRequest* aRequest, nsISupports* aContext,
|
||
nsresult aStatusCode) override
|
||
{
|
||
// Nothing to do here!
|
||
return NS_OK;
|
||
}
|
||
|
||
private:
|
||
~LoaderListener() {}
|
||
|
||
RefPtr<ScriptLoaderRunnable> mRunnable;
|
||
uint32_t mIndex;
|
||
};
|
||
|
||
NS_IMPL_ISUPPORTS(LoaderListener, nsIStreamLoaderObserver, nsIRequestObserver)
|
||
|
||
class ScriptLoaderRunnable final : public nsIRunnable,
|
||
public nsINamed
|
||
{
|
||
friend class ScriptExecutorRunnable;
|
||
friend class CachePromiseHandler;
|
||
friend class CacheScriptLoader;
|
||
friend class LoaderListener;
|
||
|
||
WorkerPrivate* mWorkerPrivate;
|
||
nsCOMPtr<nsIEventTarget> mSyncLoopTarget;
|
||
nsTArray<ScriptLoadInfo> mLoadInfos;
|
||
RefPtr<CacheCreator> mCacheCreator;
|
||
Maybe<ClientInfo> mClientInfo;
|
||
Maybe<ServiceWorkerDescriptor> mController;
|
||
bool mIsMainScript;
|
||
WorkerScriptType mWorkerScriptType;
|
||
bool mCanceledMainThread;
|
||
ErrorResult& mRv;
|
||
|
||
public:
|
||
NS_DECL_THREADSAFE_ISUPPORTS
|
||
|
||
ScriptLoaderRunnable(WorkerPrivate* aWorkerPrivate,
|
||
nsIEventTarget* aSyncLoopTarget,
|
||
nsTArray<ScriptLoadInfo>& aLoadInfos,
|
||
const Maybe<ClientInfo>& aClientInfo,
|
||
const Maybe<ServiceWorkerDescriptor>& aController,
|
||
bool aIsMainScript,
|
||
WorkerScriptType aWorkerScriptType,
|
||
ErrorResult& aRv)
|
||
: mWorkerPrivate(aWorkerPrivate), mSyncLoopTarget(aSyncLoopTarget),
|
||
mClientInfo(aClientInfo), mController(aController),
|
||
mIsMainScript(aIsMainScript), mWorkerScriptType(aWorkerScriptType),
|
||
mCanceledMainThread(false), mRv(aRv)
|
||
{
|
||
aWorkerPrivate->AssertIsOnWorkerThread();
|
||
MOZ_ASSERT(aSyncLoopTarget);
|
||
MOZ_ASSERT_IF(aIsMainScript, aLoadInfos.Length() == 1);
|
||
|
||
mLoadInfos.SwapElements(aLoadInfos);
|
||
}
|
||
|
||
void
|
||
CancelMainThreadWithBindingAborted()
|
||
{
|
||
CancelMainThread(NS_BINDING_ABORTED);
|
||
}
|
||
|
||
private:
|
||
~ScriptLoaderRunnable()
|
||
{ }
|
||
|
||
NS_IMETHOD
|
||
Run() override
|
||
{
|
||
AssertIsOnMainThread();
|
||
|
||
nsresult rv = RunInternal();
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
CancelMainThread(rv);
|
||
}
|
||
|
||
return NS_OK;
|
||
}
|
||
|
||
NS_IMETHOD
|
||
GetName(nsACString& aName) override
|
||
{
|
||
aName.AssignLiteral("ScriptLoaderRunnable");
|
||
return NS_OK;
|
||
}
|
||
|
||
void
|
||
LoadingFinished(uint32_t aIndex, nsresult aRv)
|
||
{
|
||
AssertIsOnMainThread();
|
||
MOZ_ASSERT(aIndex < mLoadInfos.Length());
|
||
ScriptLoadInfo& loadInfo = mLoadInfos[aIndex];
|
||
|
||
loadInfo.mLoadResult = aRv;
|
||
|
||
MOZ_ASSERT(!loadInfo.mLoadingFinished);
|
||
loadInfo.mLoadingFinished = true;
|
||
|
||
if (IsMainWorkerScript() && NS_SUCCEEDED(aRv)) {
|
||
MOZ_DIAGNOSTIC_ASSERT(mWorkerPrivate->PrincipalURIMatchesScriptURL());
|
||
}
|
||
|
||
MaybeExecuteFinishedScripts(aIndex);
|
||
}
|
||
|
||
void
|
||
MaybeExecuteFinishedScripts(uint32_t aIndex)
|
||
{
|
||
AssertIsOnMainThread();
|
||
MOZ_ASSERT(aIndex < mLoadInfos.Length());
|
||
ScriptLoadInfo& loadInfo = mLoadInfos[aIndex];
|
||
|
||
// We execute the last step if we don't have a pending operation with the
|
||
// cache and the loading is completed.
|
||
if (loadInfo.Finished()) {
|
||
ExecuteFinishedScripts();
|
||
}
|
||
}
|
||
|
||
nsresult
|
||
OnStreamComplete(nsIStreamLoader* aLoader, uint32_t aIndex,
|
||
nsresult aStatus, uint32_t aStringLen,
|
||
const uint8_t* aString)
|
||
{
|
||
AssertIsOnMainThread();
|
||
MOZ_ASSERT(aIndex < mLoadInfos.Length());
|
||
|
||
nsresult rv = OnStreamCompleteInternal(aLoader, aStatus, aStringLen,
|
||
aString, mLoadInfos[aIndex]);
|
||
LoadingFinished(aIndex, rv);
|
||
return NS_OK;
|
||
}
|
||
|
||
nsresult
|
||
OnStartRequest(nsIRequest* aRequest, uint32_t aIndex)
|
||
{
|
||
AssertIsOnMainThread();
|
||
MOZ_ASSERT(aIndex < mLoadInfos.Length());
|
||
|
||
// If one load info cancels or hits an error, it can race with the start
|
||
// callback coming from another load info.
|
||
if (mCanceledMainThread || !mCacheCreator) {
|
||
aRequest->Cancel(NS_ERROR_FAILURE);
|
||
return NS_ERROR_FAILURE;
|
||
}
|
||
|
||
ScriptLoadInfo& loadInfo = mLoadInfos[aIndex];
|
||
|
||
nsCOMPtr<nsIChannel> channel = do_QueryInterface(aRequest);
|
||
|
||
// Checking the MIME type is only required for ServiceWorkers'
|
||
// importScripts, per step 10 of https://w3c.github.io/ServiceWorker/#importscripts
|
||
//
|
||
// "Extract a MIME type from the response’s header list. If this MIME type
|
||
// (ignoring parameters) is not a JavaScript MIME type, return a network error."
|
||
if (mWorkerPrivate->IsServiceWorker()) {
|
||
nsAutoCString mimeType;
|
||
channel->GetContentType(mimeType);
|
||
|
||
if (!nsContentUtils::IsJavascriptMIMEType(NS_ConvertUTF8toUTF16(mimeType))) {
|
||
const nsCString& scope =
|
||
mWorkerPrivate->GetServiceWorkerRegistrationDescriptor().Scope();
|
||
|
||
ServiceWorkerManager::LocalizeAndReportToAllClients(
|
||
scope, "ServiceWorkerRegisterMimeTypeError2",
|
||
nsTArray<nsString> {
|
||
NS_ConvertUTF8toUTF16(scope),
|
||
NS_ConvertUTF8toUTF16(mimeType),
|
||
loadInfo.mURL
|
||
}
|
||
);
|
||
|
||
channel->Cancel(NS_ERROR_DOM_NETWORK_ERR);
|
||
return NS_ERROR_DOM_NETWORK_ERR;
|
||
}
|
||
}
|
||
|
||
// Note that importScripts() can redirect. In theory the main
|
||
// script could also encounter an internal redirect, but currently
|
||
// the assert does not allow that.
|
||
MOZ_ASSERT_IF(mIsMainScript, channel == loadInfo.mChannel);
|
||
loadInfo.mChannel = channel;
|
||
|
||
// We synthesize the result code, but its never exposed to content.
|
||
RefPtr<mozilla::dom::InternalResponse> ir =
|
||
new mozilla::dom::InternalResponse(200, NS_LITERAL_CSTRING("OK"));
|
||
ir->SetBody(loadInfo.mCacheReadStream, InternalResponse::UNKNOWN_BODY_SIZE);
|
||
|
||
// Drop our reference to the stream now that we've passed it along, so it
|
||
// doesn't hang around once the cache is done with it and keep data alive.
|
||
loadInfo.mCacheReadStream = nullptr;
|
||
|
||
// Set the channel info of the channel on the response so that it's
|
||
// saved in the cache.
|
||
ir->InitChannelInfo(channel);
|
||
|
||
// Save the principal of the channel since its URI encodes the script URI
|
||
// rather than the ServiceWorkerRegistrationInfo URI.
|
||
nsIScriptSecurityManager* ssm = nsContentUtils::GetSecurityManager();
|
||
NS_ASSERTION(ssm, "Should never be null!");
|
||
|
||
nsCOMPtr<nsIPrincipal> channelPrincipal;
|
||
nsresult rv = ssm->GetChannelResultPrincipal(channel, getter_AddRefs(channelPrincipal));
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
channel->Cancel(rv);
|
||
return rv;
|
||
}
|
||
|
||
UniquePtr<PrincipalInfo> principalInfo(new PrincipalInfo());
|
||
rv = PrincipalToPrincipalInfo(channelPrincipal, principalInfo.get());
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
channel->Cancel(rv);
|
||
return rv;
|
||
}
|
||
|
||
ir->SetPrincipalInfo(std::move(principalInfo));
|
||
ir->Headers()->FillResponseHeaders(loadInfo.mChannel);
|
||
|
||
RefPtr<mozilla::dom::Response> response =
|
||
new mozilla::dom::Response(mCacheCreator->Global(), ir, nullptr);
|
||
|
||
mozilla::dom::RequestOrUSVString request;
|
||
|
||
MOZ_ASSERT(!loadInfo.mFullURL.IsEmpty());
|
||
request.SetAsUSVString().Rebind(loadInfo.mFullURL.Data(),
|
||
loadInfo.mFullURL.Length());
|
||
|
||
// This JSContext will not end up executing JS code because here there are
|
||
// no ReadableStreams involved.
|
||
AutoJSAPI jsapi;
|
||
jsapi.Init();
|
||
|
||
ErrorResult error;
|
||
RefPtr<Promise> cachePromise =
|
||
mCacheCreator->Cache_()->Put(jsapi.cx(), request, *response, error);
|
||
error.WouldReportJSException();
|
||
if (NS_WARN_IF(error.Failed())) {
|
||
nsresult rv = error.StealNSResult();
|
||
channel->Cancel(rv);
|
||
return rv;
|
||
}
|
||
|
||
RefPtr<CachePromiseHandler> promiseHandler =
|
||
new CachePromiseHandler(this, loadInfo, aIndex);
|
||
cachePromise->AppendNativeHandler(promiseHandler);
|
||
|
||
loadInfo.mCachePromise.swap(cachePromise);
|
||
loadInfo.mCacheStatus = ScriptLoadInfo::WritingToCache;
|
||
|
||
return NS_OK;
|
||
}
|
||
|
||
bool
|
||
IsMainWorkerScript() const
|
||
{
|
||
return mIsMainScript && mWorkerScriptType == WorkerScript;
|
||
}
|
||
|
||
bool
|
||
IsDebuggerScript() const
|
||
{
|
||
return mWorkerScriptType == DebuggerScript;
|
||
}
|
||
|
||
void
|
||
CancelMainThread(nsresult aCancelResult)
|
||
{
|
||
AssertIsOnMainThread();
|
||
|
||
if (mCanceledMainThread) {
|
||
return;
|
||
}
|
||
|
||
mCanceledMainThread = true;
|
||
|
||
if (mCacheCreator) {
|
||
MOZ_ASSERT(mWorkerPrivate->IsServiceWorker());
|
||
DeleteCache();
|
||
}
|
||
|
||
// Cancel all the channels that were already opened.
|
||
for (uint32_t index = 0; index < mLoadInfos.Length(); index++) {
|
||
ScriptLoadInfo& loadInfo = mLoadInfos[index];
|
||
|
||
// If promise or channel is non-null, their failures will lead to
|
||
// LoadingFinished being called.
|
||
bool callLoadingFinished = true;
|
||
|
||
if (loadInfo.mCachePromise) {
|
||
MOZ_ASSERT(mWorkerPrivate->IsServiceWorker());
|
||
loadInfo.mCachePromise->MaybeReject(aCancelResult);
|
||
loadInfo.mCachePromise = nullptr;
|
||
callLoadingFinished = false;
|
||
}
|
||
|
||
if (loadInfo.mChannel) {
|
||
if (NS_SUCCEEDED(loadInfo.mChannel->Cancel(aCancelResult))) {
|
||
callLoadingFinished = false;
|
||
} else {
|
||
NS_WARNING("Failed to cancel channel!");
|
||
}
|
||
}
|
||
|
||
if (callLoadingFinished && !loadInfo.Finished()) {
|
||
LoadingFinished(index, aCancelResult);
|
||
}
|
||
}
|
||
|
||
ExecuteFinishedScripts();
|
||
}
|
||
|
||
void
|
||
DeleteCache()
|
||
{
|
||
AssertIsOnMainThread();
|
||
|
||
if (!mCacheCreator) {
|
||
return;
|
||
}
|
||
|
||
mCacheCreator->DeleteCache();
|
||
mCacheCreator = nullptr;
|
||
}
|
||
|
||
nsresult
|
||
RunInternal()
|
||
{
|
||
AssertIsOnMainThread();
|
||
|
||
if (IsMainWorkerScript()) {
|
||
mWorkerPrivate->SetLoadingWorkerScript(true);
|
||
}
|
||
|
||
if (!mWorkerPrivate->IsServiceWorker() || IsDebuggerScript()) {
|
||
for (uint32_t index = 0, len = mLoadInfos.Length(); index < len;
|
||
++index) {
|
||
nsresult rv = LoadScript(index);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
LoadingFinished(index, rv);
|
||
return rv;
|
||
}
|
||
}
|
||
|
||
return NS_OK;
|
||
}
|
||
|
||
MOZ_ASSERT(!mCacheCreator);
|
||
mCacheCreator = new CacheCreator(mWorkerPrivate);
|
||
|
||
for (uint32_t index = 0, len = mLoadInfos.Length(); index < len; ++index) {
|
||
RefPtr<CacheScriptLoader> loader =
|
||
new CacheScriptLoader(mWorkerPrivate, mLoadInfos[index], index,
|
||
IsMainWorkerScript(), this);
|
||
mCacheCreator->AddLoader(loader);
|
||
}
|
||
|
||
// The worker may have a null principal on first load, but in that case its
|
||
// parent definitely will have one.
|
||
nsIPrincipal* principal = mWorkerPrivate->GetPrincipal();
|
||
if (!principal) {
|
||
WorkerPrivate* parentWorker = mWorkerPrivate->GetParent();
|
||
MOZ_ASSERT(parentWorker, "Must have a parent!");
|
||
principal = parentWorker->GetPrincipal();
|
||
}
|
||
|
||
nsresult rv = mCacheCreator->Load(principal);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
return rv;
|
||
}
|
||
|
||
return NS_OK;
|
||
}
|
||
|
||
nsresult
|
||
LoadScript(uint32_t aIndex)
|
||
{
|
||
AssertIsOnMainThread();
|
||
MOZ_ASSERT(aIndex < mLoadInfos.Length());
|
||
MOZ_ASSERT_IF(IsMainWorkerScript(), mWorkerScriptType != DebuggerScript);
|
||
|
||
WorkerPrivate* parentWorker = mWorkerPrivate->GetParent();
|
||
|
||
// For JavaScript debugging, the devtools server must run on the same
|
||
// thread as the debuggee, indicating the worker uses content principal.
|
||
// However, in Bug 863246, web content will no longer be able to load
|
||
// resource:// URIs by default, so we need system principal to load
|
||
// debugger scripts.
|
||
nsIPrincipal* principal = (mWorkerScriptType == DebuggerScript) ?
|
||
nsContentUtils::GetSystemPrincipal() :
|
||
mWorkerPrivate->GetPrincipal();
|
||
|
||
nsCOMPtr<nsILoadGroup> loadGroup = mWorkerPrivate->GetLoadGroup();
|
||
MOZ_DIAGNOSTIC_ASSERT(principal);
|
||
|
||
NS_ENSURE_TRUE(NS_LoadGroupMatchesPrincipal(loadGroup, principal),
|
||
NS_ERROR_FAILURE);
|
||
|
||
// Figure out our base URI.
|
||
nsCOMPtr<nsIURI> baseURI = GetBaseURI(mIsMainScript, mWorkerPrivate);
|
||
|
||
// May be null.
|
||
nsCOMPtr<nsIDocument> parentDoc = mWorkerPrivate->GetDocument();
|
||
|
||
nsCOMPtr<nsIChannel> channel;
|
||
if (IsMainWorkerScript()) {
|
||
// May be null.
|
||
channel = mWorkerPrivate->ForgetWorkerChannel();
|
||
}
|
||
|
||
nsCOMPtr<nsIIOService> ios(do_GetIOService());
|
||
|
||
nsIScriptSecurityManager* secMan = nsContentUtils::GetSecurityManager();
|
||
NS_ASSERTION(secMan, "This should never be null!");
|
||
|
||
ScriptLoadInfo& loadInfo = mLoadInfos[aIndex];
|
||
nsresult& rv = loadInfo.mLoadResult;
|
||
|
||
nsLoadFlags loadFlags = loadInfo.mLoadFlags;
|
||
|
||
// Get the top-level worker.
|
||
WorkerPrivate* topWorkerPrivate = mWorkerPrivate;
|
||
WorkerPrivate* parent = topWorkerPrivate->GetParent();
|
||
while (parent) {
|
||
topWorkerPrivate = parent;
|
||
parent = topWorkerPrivate->GetParent();
|
||
}
|
||
|
||
// If the top-level worker is a dedicated worker and has a window, and the
|
||
// window has a docshell, the caching behavior of this worker should match
|
||
// that of that docshell.
|
||
if (topWorkerPrivate->IsDedicatedWorker()) {
|
||
nsCOMPtr<nsPIDOMWindowInner> window = topWorkerPrivate->GetWindow();
|
||
if (window) {
|
||
nsCOMPtr<nsIDocShell> docShell = window->GetDocShell();
|
||
if (docShell) {
|
||
nsresult rv = docShell->GetDefaultLoadFlags(&loadFlags);
|
||
NS_ENSURE_SUCCESS(rv, rv);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!channel) {
|
||
// Only top level workers' main script use the document charset for the
|
||
// script uri encoding. Otherwise, default encoding (UTF-8) is applied.
|
||
bool useDefaultEncoding = !(!parentWorker && IsMainWorkerScript());
|
||
nsCOMPtr<nsIURI> url;
|
||
rv = ConstructURI(loadInfo.mURL, baseURI, parentDoc, useDefaultEncoding,
|
||
getter_AddRefs(url));
|
||
if (NS_FAILED(rv)) {
|
||
return rv;
|
||
}
|
||
|
||
rv = ChannelFromScriptURL(principal, parentDoc, mWorkerPrivate,
|
||
loadGroup, ios,
|
||
secMan, url,
|
||
mClientInfo, mController,
|
||
IsMainWorkerScript(),
|
||
mWorkerScriptType,
|
||
mWorkerPrivate->ContentPolicyType(), loadFlags,
|
||
getter_AddRefs(channel));
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
return rv;
|
||
}
|
||
}
|
||
|
||
// We need to know which index we're on in OnStreamComplete so we know
|
||
// where to put the result.
|
||
RefPtr<LoaderListener> listener = new LoaderListener(this, aIndex);
|
||
|
||
// We don't care about progress so just use the simple stream loader for
|
||
// OnStreamComplete notification only.
|
||
nsCOMPtr<nsIStreamLoader> loader;
|
||
rv = NS_NewStreamLoader(getter_AddRefs(loader), listener);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
return rv;
|
||
}
|
||
|
||
if (IsMainWorkerScript()) {
|
||
MOZ_DIAGNOSTIC_ASSERT(loadInfo.mReservedClientInfo.isSome());
|
||
rv = AddClientChannelHelper(channel,
|
||
std::move(loadInfo.mReservedClientInfo),
|
||
Maybe<ClientInfo>(),
|
||
mWorkerPrivate->HybridEventTarget());
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
return rv;
|
||
}
|
||
}
|
||
|
||
if (loadInfo.mCacheStatus != ScriptLoadInfo::ToBeCached) {
|
||
rv = channel->AsyncOpen2(loader);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
return rv;
|
||
}
|
||
} else {
|
||
nsCOMPtr<nsIOutputStream> writer;
|
||
|
||
// In case we return early.
|
||
loadInfo.mCacheStatus = ScriptLoadInfo::Cancel;
|
||
|
||
rv = NS_NewPipe(getter_AddRefs(loadInfo.mCacheReadStream),
|
||
getter_AddRefs(writer), 0,
|
||
UINT32_MAX, // unlimited size to avoid writer WOULD_BLOCK case
|
||
true, false); // non-blocking reader, blocking writer
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
return rv;
|
||
}
|
||
|
||
nsCOMPtr<nsIStreamListenerTee> tee =
|
||
do_CreateInstance(NS_STREAMLISTENERTEE_CONTRACTID);
|
||
rv = tee->Init(loader, writer, listener);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
return rv;
|
||
}
|
||
|
||
nsresult rv = channel->AsyncOpen2(tee);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
return rv;
|
||
}
|
||
}
|
||
|
||
loadInfo.mChannel.swap(channel);
|
||
|
||
return NS_OK;
|
||
}
|
||
|
||
nsresult
|
||
OnStreamCompleteInternal(nsIStreamLoader* aLoader, nsresult aStatus,
|
||
uint32_t aStringLen, const uint8_t* aString,
|
||
ScriptLoadInfo& aLoadInfo)
|
||
{
|
||
AssertIsOnMainThread();
|
||
|
||
if (!aLoadInfo.mChannel) {
|
||
return NS_BINDING_ABORTED;
|
||
}
|
||
|
||
aLoadInfo.mChannel = nullptr;
|
||
|
||
if (NS_FAILED(aStatus)) {
|
||
return aStatus;
|
||
}
|
||
|
||
NS_ASSERTION(aString, "This should never be null!");
|
||
|
||
nsCOMPtr<nsIRequest> request;
|
||
nsresult rv = aLoader->GetRequest(getter_AddRefs(request));
|
||
NS_ENSURE_SUCCESS(rv, rv);
|
||
|
||
nsCOMPtr<nsIChannel> channel = do_QueryInterface(request);
|
||
MOZ_ASSERT(channel);
|
||
|
||
nsIScriptSecurityManager* ssm = nsContentUtils::GetSecurityManager();
|
||
NS_ASSERTION(ssm, "Should never be null!");
|
||
|
||
nsCOMPtr<nsIPrincipal> channelPrincipal;
|
||
rv = ssm->GetChannelResultPrincipal(channel, getter_AddRefs(channelPrincipal));
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
return rv;
|
||
}
|
||
|
||
nsIPrincipal* principal = mWorkerPrivate->GetPrincipal();
|
||
if (!principal) {
|
||
WorkerPrivate* parentWorker = mWorkerPrivate->GetParent();
|
||
MOZ_ASSERT(parentWorker, "Must have a parent!");
|
||
principal = parentWorker->GetPrincipal();
|
||
}
|
||
|
||
#ifdef DEBUG
|
||
if (IsMainWorkerScript()) {
|
||
nsCOMPtr<nsIPrincipal> loadingPrincipal =
|
||
mWorkerPrivate->GetLoadingPrincipal();
|
||
// if we are not in a ServiceWorker, and the principal is not null, then the
|
||
// loading principal must subsume the worker principal if it is not a
|
||
// nullPrincipal (sandbox).
|
||
MOZ_ASSERT(!loadingPrincipal ||
|
||
loadingPrincipal->GetIsNullPrincipal() ||
|
||
principal->GetIsNullPrincipal() ||
|
||
loadingPrincipal->Subsumes(principal));
|
||
}
|
||
#endif
|
||
|
||
// We don't mute the main worker script becase we've already done
|
||
// same-origin checks on them so we should be able to see their errors.
|
||
// Note that for data: url, where we allow it through the same-origin check
|
||
// but then give it a different origin.
|
||
aLoadInfo.mMutedErrorFlag.emplace(IsMainWorkerScript()
|
||
? false
|
||
: !principal->Subsumes(channelPrincipal));
|
||
|
||
// Make sure we're not seeing the result of a 404 or something by checking
|
||
// the 'requestSucceeded' attribute on the http channel.
|
||
nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(request);
|
||
nsAutoCString tCspHeaderValue, tCspROHeaderValue, tRPHeaderCValue;
|
||
|
||
if (httpChannel) {
|
||
bool requestSucceeded;
|
||
rv = httpChannel->GetRequestSucceeded(&requestSucceeded);
|
||
NS_ENSURE_SUCCESS(rv, rv);
|
||
|
||
if (!requestSucceeded) {
|
||
return NS_ERROR_NOT_AVAILABLE;
|
||
}
|
||
|
||
Unused << httpChannel->GetResponseHeader(
|
||
NS_LITERAL_CSTRING("content-security-policy"),
|
||
tCspHeaderValue);
|
||
|
||
Unused << httpChannel->GetResponseHeader(
|
||
NS_LITERAL_CSTRING("content-security-policy-report-only"),
|
||
tCspROHeaderValue);
|
||
|
||
Unused << httpChannel->GetResponseHeader(
|
||
NS_LITERAL_CSTRING("referrer-policy"),
|
||
tRPHeaderCValue);
|
||
}
|
||
|
||
// May be null.
|
||
nsIDocument* parentDoc = mWorkerPrivate->GetDocument();
|
||
|
||
// Use the regular ScriptLoader for this grunt work! Should be just fine
|
||
// because we're running on the main thread.
|
||
// Unlike <script> tags, Worker scripts are always decoded as UTF-8,
|
||
// per spec. So we explicitly pass in the charset hint.
|
||
rv = ScriptLoader::ConvertToUTF16(aLoadInfo.mChannel, aString, aStringLen,
|
||
NS_LITERAL_STRING("UTF-8"), parentDoc,
|
||
aLoadInfo.mScriptTextBuf,
|
||
aLoadInfo.mScriptTextLength);
|
||
if (NS_FAILED(rv)) {
|
||
return rv;
|
||
}
|
||
|
||
if (!aLoadInfo.mScriptTextLength && !aLoadInfo.mScriptTextBuf) {
|
||
nsContentUtils::ReportToConsole(nsIScriptError::warningFlag,
|
||
NS_LITERAL_CSTRING("DOM"), parentDoc,
|
||
nsContentUtils::eDOM_PROPERTIES,
|
||
"EmptyWorkerSourceWarning");
|
||
} else if (!aLoadInfo.mScriptTextBuf) {
|
||
return NS_ERROR_FAILURE;
|
||
}
|
||
|
||
// Figure out what we actually loaded.
|
||
nsCOMPtr<nsIURI> finalURI;
|
||
rv = NS_GetFinalChannelURI(channel, getter_AddRefs(finalURI));
|
||
NS_ENSURE_SUCCESS(rv, rv);
|
||
|
||
nsCString filename;
|
||
rv = finalURI->GetSpec(filename);
|
||
NS_ENSURE_SUCCESS(rv, rv);
|
||
|
||
if (!filename.IsEmpty()) {
|
||
// This will help callers figure out what their script url resolved to in
|
||
// case of errors.
|
||
aLoadInfo.mURL.Assign(NS_ConvertUTF8toUTF16(filename));
|
||
}
|
||
|
||
nsCOMPtr<nsILoadInfo> chanLoadInfo = channel->GetLoadInfo();
|
||
if (chanLoadInfo && chanLoadInfo->GetEnforceSRI()) {
|
||
// importScripts() and the Worker constructor do not support integrity metadata
|
||
// (or any fetch options). Until then, we can just block.
|
||
// If we ever have those data in the future, we'll have to the check to
|
||
// by using the SRICheck module
|
||
MOZ_LOG(SRILogHelper::GetSriLog(), mozilla::LogLevel::Debug,
|
||
("Scriptloader::Load, SRI required but not supported in workers"));
|
||
nsCOMPtr<nsIContentSecurityPolicy> wcsp;
|
||
chanLoadInfo->LoadingPrincipal()->GetCsp(getter_AddRefs(wcsp));
|
||
MOZ_ASSERT(wcsp, "We should have a CSP for the worker here");
|
||
if (wcsp) {
|
||
wcsp->LogViolationDetails(
|
||
nsIContentSecurityPolicy::VIOLATION_TYPE_REQUIRE_SRI_FOR_SCRIPT,
|
||
nullptr, // triggering element
|
||
mWorkerPrivate->CSPEventListener(),
|
||
aLoadInfo.mURL, EmptyString(), 0, 0, EmptyString(), EmptyString());
|
||
}
|
||
return NS_ERROR_SRI_CORRUPT;
|
||
}
|
||
|
||
// Update the principal of the worker and its base URI if we just loaded the
|
||
// worker's primary script.
|
||
if (IsMainWorkerScript()) {
|
||
// Take care of the base URI first.
|
||
mWorkerPrivate->SetBaseURI(finalURI);
|
||
|
||
// Store the channel info if needed.
|
||
mWorkerPrivate->InitChannelInfo(channel);
|
||
|
||
// Our final channel principal should match the loading principal
|
||
// in terms of the origin. This used to be an assert, but it seems
|
||
// there are some rare cases where this check can fail in practice.
|
||
// Perhaps some browser script setting nsIChannel.owner, etc.
|
||
NS_ENSURE_TRUE(mWorkerPrivate->FinalChannelPrincipalIsValid(channel),
|
||
NS_ERROR_FAILURE);
|
||
|
||
// However, we must still override the principal since the nsIPrincipal
|
||
// URL may be different due to same-origin redirects. Unfortunately this
|
||
// URL must exactly match the final worker script URL in order to
|
||
// properly set the referrer header on fetch/xhr requests. If bug 1340694
|
||
// is ever fixed this can be removed.
|
||
rv = mWorkerPrivate->SetPrincipalFromChannel(channel);
|
||
NS_ENSURE_SUCCESS(rv, rv);
|
||
|
||
nsCOMPtr<nsIContentSecurityPolicy> csp = mWorkerPrivate->GetCSP();
|
||
// We did inherit CSP in bug 1223647. If we do not already have a CSP, we
|
||
// should get it from the HTTP headers on the worker script.
|
||
if (StaticPrefs::security_csp_enable()) {
|
||
if (!csp) {
|
||
rv = mWorkerPrivate->SetCSPFromHeaderValues(tCspHeaderValue,
|
||
tCspROHeaderValue);
|
||
NS_ENSURE_SUCCESS(rv, rv);
|
||
} else {
|
||
csp->EnsureEventTarget(mWorkerPrivate->MainThreadEventTarget());
|
||
}
|
||
}
|
||
|
||
mWorkerPrivate->SetReferrerPolicyFromHeaderValue(tRPHeaderCValue);
|
||
|
||
WorkerPrivate* parent = mWorkerPrivate->GetParent();
|
||
if (parent) {
|
||
// XHR Params Allowed
|
||
mWorkerPrivate->SetXHRParamsAllowed(parent->XHRParamsAllowed());
|
||
}
|
||
|
||
if (chanLoadInfo) {
|
||
mController = chanLoadInfo->GetController();
|
||
}
|
||
|
||
// If we are loading a blob URL we must inherit the controller
|
||
// from the parent. This is a bit odd as the blob URL may have
|
||
// been created in a different context with a different controller.
|
||
// For now, though, this is what the spec says. See:
|
||
//
|
||
// https://github.com/w3c/ServiceWorker/issues/1261
|
||
//
|
||
if (IsBlobURI(mWorkerPrivate->GetBaseURI())) {
|
||
MOZ_DIAGNOSTIC_ASSERT(mController.isNothing());
|
||
mController = mWorkerPrivate->GetParentController();
|
||
}
|
||
}
|
||
|
||
return NS_OK;
|
||
}
|
||
|
||
void
|
||
DataReceivedFromCache(uint32_t aIndex, const uint8_t* aString,
|
||
uint32_t aStringLen,
|
||
const mozilla::dom::ChannelInfo& aChannelInfo,
|
||
UniquePtr<PrincipalInfo> aPrincipalInfo,
|
||
const nsACString& aCSPHeaderValue,
|
||
const nsACString& aCSPReportOnlyHeaderValue,
|
||
const nsACString& aReferrerPolicyHeaderValue)
|
||
{
|
||
AssertIsOnMainThread();
|
||
MOZ_ASSERT(aIndex < mLoadInfos.Length());
|
||
ScriptLoadInfo& loadInfo = mLoadInfos[aIndex];
|
||
MOZ_ASSERT(loadInfo.mCacheStatus == ScriptLoadInfo::Cached);
|
||
|
||
nsCOMPtr<nsIPrincipal> responsePrincipal =
|
||
PrincipalInfoToPrincipal(*aPrincipalInfo);
|
||
MOZ_DIAGNOSTIC_ASSERT(responsePrincipal);
|
||
|
||
nsIPrincipal* principal = mWorkerPrivate->GetPrincipal();
|
||
if (!principal) {
|
||
WorkerPrivate* parentWorker = mWorkerPrivate->GetParent();
|
||
MOZ_ASSERT(parentWorker, "Must have a parent!");
|
||
principal = parentWorker->GetPrincipal();
|
||
}
|
||
|
||
loadInfo.mMutedErrorFlag.emplace(!principal->Subsumes(responsePrincipal));
|
||
|
||
// May be null.
|
||
nsIDocument* parentDoc = mWorkerPrivate->GetDocument();
|
||
|
||
MOZ_ASSERT(!loadInfo.mScriptTextBuf);
|
||
|
||
nsresult rv =
|
||
ScriptLoader::ConvertToUTF16(nullptr, aString, aStringLen,
|
||
NS_LITERAL_STRING("UTF-8"), parentDoc,
|
||
loadInfo.mScriptTextBuf,
|
||
loadInfo.mScriptTextLength);
|
||
if (NS_SUCCEEDED(rv) && IsMainWorkerScript()) {
|
||
nsCOMPtr<nsIURI> finalURI;
|
||
rv = NS_NewURI(getter_AddRefs(finalURI), loadInfo.mFullURL, nullptr, nullptr);
|
||
if (NS_SUCCEEDED(rv)) {
|
||
mWorkerPrivate->SetBaseURI(finalURI);
|
||
}
|
||
|
||
#ifdef MOZ_DIAGNOSTIC_ASSERT_ENABLED
|
||
nsIPrincipal* principal = mWorkerPrivate->GetPrincipal();
|
||
MOZ_DIAGNOSTIC_ASSERT(principal);
|
||
|
||
bool equal = false;
|
||
MOZ_ALWAYS_SUCCEEDS(responsePrincipal->Equals(principal, &equal));
|
||
MOZ_DIAGNOSTIC_ASSERT(equal);
|
||
|
||
nsCOMPtr<nsIContentSecurityPolicy> csp;
|
||
MOZ_ALWAYS_SUCCEEDS(responsePrincipal->GetCsp(getter_AddRefs(csp)));
|
||
MOZ_DIAGNOSTIC_ASSERT(!csp);
|
||
#endif
|
||
|
||
mWorkerPrivate->InitChannelInfo(aChannelInfo);
|
||
|
||
nsILoadGroup* loadGroup = mWorkerPrivate->GetLoadGroup();
|
||
MOZ_DIAGNOSTIC_ASSERT(loadGroup);
|
||
|
||
// Override the principal on the WorkerPrivate. This is only necessary
|
||
// in order to get a principal with exactly the correct URL. The fetch
|
||
// referrer logic depends on the WorkerPrivate principal having a URL
|
||
// that matches the worker script URL. If bug 1340694 is ever fixed
|
||
// this can be removed.
|
||
rv = mWorkerPrivate->SetPrincipalOnMainThread(responsePrincipal, loadGroup);
|
||
MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(rv));
|
||
|
||
rv = mWorkerPrivate->SetCSPFromHeaderValues(aCSPHeaderValue,
|
||
aCSPReportOnlyHeaderValue);
|
||
MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(rv));
|
||
|
||
mWorkerPrivate->SetReferrerPolicyFromHeaderValue(aReferrerPolicyHeaderValue);
|
||
}
|
||
|
||
if (NS_SUCCEEDED(rv)) {
|
||
DataReceived();
|
||
}
|
||
|
||
LoadingFinished(aIndex, rv);
|
||
}
|
||
|
||
void
|
||
DataReceived()
|
||
{
|
||
if (IsMainWorkerScript()) {
|
||
WorkerPrivate* parent = mWorkerPrivate->GetParent();
|
||
|
||
if (parent) {
|
||
// XHR Params Allowed
|
||
mWorkerPrivate->SetXHRParamsAllowed(parent->XHRParamsAllowed());
|
||
|
||
// Set Eval and ContentSecurityPolicy
|
||
mWorkerPrivate->SetCSP(parent->GetCSP());
|
||
mWorkerPrivate->SetEvalAllowed(parent->IsEvalAllowed());
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
ExecuteFinishedScripts()
|
||
{
|
||
AssertIsOnMainThread();
|
||
|
||
if (IsMainWorkerScript()) {
|
||
mWorkerPrivate->WorkerScriptLoaded();
|
||
}
|
||
|
||
uint32_t firstIndex = UINT32_MAX;
|
||
uint32_t lastIndex = UINT32_MAX;
|
||
|
||
// Find firstIndex based on whether mExecutionScheduled is unset.
|
||
for (uint32_t index = 0; index < mLoadInfos.Length(); index++) {
|
||
if (!mLoadInfos[index].mExecutionScheduled) {
|
||
firstIndex = index;
|
||
break;
|
||
}
|
||
}
|
||
|
||
// Find lastIndex based on whether mChannel is set, and update
|
||
// mExecutionScheduled on the ones we're about to schedule.
|
||
if (firstIndex != UINT32_MAX) {
|
||
for (uint32_t index = firstIndex; index < mLoadInfos.Length(); index++) {
|
||
ScriptLoadInfo& loadInfo = mLoadInfos[index];
|
||
|
||
if (!loadInfo.Finished()) {
|
||
break;
|
||
}
|
||
|
||
// We can execute this one.
|
||
loadInfo.mExecutionScheduled = true;
|
||
|
||
lastIndex = index;
|
||
}
|
||
}
|
||
|
||
// This is the last index, we can unused things before the exection of the
|
||
// script and the stopping of the sync loop.
|
||
if (lastIndex == mLoadInfos.Length() - 1) {
|
||
mCacheCreator = nullptr;
|
||
}
|
||
|
||
if (firstIndex != UINT32_MAX && lastIndex != UINT32_MAX) {
|
||
RefPtr<ScriptExecutorRunnable> runnable =
|
||
new ScriptExecutorRunnable(*this, mSyncLoopTarget, IsMainWorkerScript(),
|
||
firstIndex, lastIndex);
|
||
if (!runnable->Dispatch()) {
|
||
MOZ_ASSERT(false, "This should never fail!");
|
||
}
|
||
}
|
||
}
|
||
};
|
||
|
||
NS_IMPL_ISUPPORTS(ScriptLoaderRunnable, nsIRunnable, nsINamed)
|
||
|
||
NS_IMETHODIMP
|
||
LoaderListener::OnStreamComplete(nsIStreamLoader* aLoader, nsISupports* aContext,
|
||
nsresult aStatus, uint32_t aStringLen,
|
||
const uint8_t* aString)
|
||
{
|
||
return mRunnable->OnStreamComplete(aLoader, mIndex, aStatus, aStringLen, aString);
|
||
}
|
||
|
||
NS_IMETHODIMP
|
||
LoaderListener::OnStartRequest(nsIRequest* aRequest, nsISupports* aContext)
|
||
{
|
||
return mRunnable->OnStartRequest(aRequest, mIndex);
|
||
}
|
||
|
||
void
|
||
CachePromiseHandler::ResolvedCallback(JSContext* aCx,
|
||
JS::Handle<JS::Value> aValue)
|
||
{
|
||
AssertIsOnMainThread();
|
||
// May already have been canceled by CacheScriptLoader::Fail from
|
||
// CancelMainThread.
|
||
MOZ_ASSERT(mLoadInfo.mCacheStatus == ScriptLoadInfo::WritingToCache ||
|
||
mLoadInfo.mCacheStatus == ScriptLoadInfo::Cancel);
|
||
MOZ_ASSERT_IF(mLoadInfo.mCacheStatus == ScriptLoadInfo::Cancel, !mLoadInfo.mCachePromise);
|
||
|
||
if (mLoadInfo.mCachePromise) {
|
||
mLoadInfo.mCacheStatus = ScriptLoadInfo::Cached;
|
||
mLoadInfo.mCachePromise = nullptr;
|
||
mRunnable->MaybeExecuteFinishedScripts(mIndex);
|
||
}
|
||
}
|
||
|
||
void
|
||
CachePromiseHandler::RejectedCallback(JSContext* aCx,
|
||
JS::Handle<JS::Value> aValue)
|
||
{
|
||
AssertIsOnMainThread();
|
||
// May already have been canceled by CacheScriptLoader::Fail from
|
||
// CancelMainThread.
|
||
MOZ_ASSERT(mLoadInfo.mCacheStatus == ScriptLoadInfo::WritingToCache ||
|
||
mLoadInfo.mCacheStatus == ScriptLoadInfo::Cancel);
|
||
mLoadInfo.mCacheStatus = ScriptLoadInfo::Cancel;
|
||
|
||
mLoadInfo.mCachePromise = nullptr;
|
||
|
||
// This will delete the cache object and will call LoadingFinished() with an
|
||
// error for each ongoing operation.
|
||
mRunnable->DeleteCache();
|
||
}
|
||
|
||
nsresult
|
||
CacheCreator::CreateCacheStorage(nsIPrincipal* aPrincipal)
|
||
{
|
||
AssertIsOnMainThread();
|
||
MOZ_ASSERT(!mCacheStorage);
|
||
MOZ_ASSERT(aPrincipal);
|
||
|
||
nsIXPConnect* xpc = nsContentUtils::XPConnect();
|
||
MOZ_ASSERT(xpc, "This should never be null!");
|
||
|
||
AutoJSAPI jsapi;
|
||
jsapi.Init();
|
||
JSContext* cx = jsapi.cx();
|
||
JS::Rooted<JSObject*> sandbox(cx);
|
||
nsresult rv = xpc->CreateSandbox(cx, aPrincipal, sandbox.address());
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
return rv;
|
||
}
|
||
|
||
// The JSContext is not in a realm, so CreateSandbox returned an unwrapped
|
||
// global.
|
||
MOZ_ASSERT(JS_IsGlobalObject(sandbox));
|
||
|
||
mSandboxGlobalObject = xpc::NativeGlobal(sandbox);
|
||
if (NS_WARN_IF(!mSandboxGlobalObject)) {
|
||
return NS_ERROR_FAILURE;
|
||
}
|
||
|
||
// If we're in private browsing mode, don't even try to create the
|
||
// CacheStorage. Instead, just fail immediately to terminate the
|
||
// ServiceWorker load.
|
||
if (NS_WARN_IF(mOriginAttributes.mPrivateBrowsingId > 0)) {
|
||
return NS_ERROR_DOM_SECURITY_ERR;
|
||
}
|
||
|
||
// Create a CacheStorage bypassing its trusted origin checks. The
|
||
// ServiceWorker has already performed its own checks before getting
|
||
// to this point.
|
||
ErrorResult error;
|
||
mCacheStorage =
|
||
CacheStorage::CreateOnMainThread(mozilla::dom::cache::CHROME_ONLY_NAMESPACE,
|
||
mSandboxGlobalObject,
|
||
aPrincipal,
|
||
true /* force trusted origin */,
|
||
error);
|
||
if (NS_WARN_IF(error.Failed())) {
|
||
return error.StealNSResult();
|
||
}
|
||
|
||
return NS_OK;
|
||
}
|
||
|
||
nsresult
|
||
CacheCreator::Load(nsIPrincipal* aPrincipal)
|
||
{
|
||
AssertIsOnMainThread();
|
||
MOZ_ASSERT(!mLoaders.IsEmpty());
|
||
|
||
nsresult rv = CreateCacheStorage(aPrincipal);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
return rv;
|
||
}
|
||
|
||
ErrorResult error;
|
||
MOZ_ASSERT(!mCacheName.IsEmpty());
|
||
RefPtr<Promise> promise = mCacheStorage->Open(mCacheName, error);
|
||
if (NS_WARN_IF(error.Failed())) {
|
||
return error.StealNSResult();
|
||
}
|
||
|
||
promise->AppendNativeHandler(this);
|
||
return NS_OK;
|
||
}
|
||
|
||
void
|
||
CacheCreator::FailLoaders(nsresult aRv)
|
||
{
|
||
AssertIsOnMainThread();
|
||
|
||
// Fail() can call LoadingFinished() which may call ExecuteFinishedScripts()
|
||
// which sets mCacheCreator to null, so hold a ref.
|
||
RefPtr<CacheCreator> kungfuDeathGrip = this;
|
||
|
||
for (uint32_t i = 0, len = mLoaders.Length(); i < len; ++i) {
|
||
mLoaders[i]->Fail(aRv);
|
||
}
|
||
|
||
mLoaders.Clear();
|
||
}
|
||
|
||
void
|
||
CacheCreator::RejectedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue)
|
||
{
|
||
AssertIsOnMainThread();
|
||
FailLoaders(NS_ERROR_FAILURE);
|
||
}
|
||
|
||
void
|
||
CacheCreator::ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue)
|
||
{
|
||
AssertIsOnMainThread();
|
||
|
||
if (!aValue.isObject()) {
|
||
FailLoaders(NS_ERROR_FAILURE);
|
||
return;
|
||
}
|
||
|
||
JS::Rooted<JSObject*> obj(aCx, &aValue.toObject());
|
||
Cache* cache = nullptr;
|
||
nsresult rv = UNWRAP_OBJECT(Cache, &obj, cache);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
FailLoaders(NS_ERROR_FAILURE);
|
||
return;
|
||
}
|
||
|
||
mCache = cache;
|
||
MOZ_DIAGNOSTIC_ASSERT(mCache);
|
||
|
||
// If the worker is canceled, CancelMainThread() will have cleared the
|
||
// loaders via DeleteCache().
|
||
for (uint32_t i = 0, len = mLoaders.Length(); i < len; ++i) {
|
||
MOZ_DIAGNOSTIC_ASSERT(mLoaders[i]);
|
||
mLoaders[i]->Load(cache);
|
||
}
|
||
}
|
||
|
||
void
|
||
CacheCreator::DeleteCache()
|
||
{
|
||
AssertIsOnMainThread();
|
||
|
||
// This is called when the load is canceled which can occur before
|
||
// mCacheStorage is initialized.
|
||
if (mCacheStorage) {
|
||
// It's safe to do this while Cache::Match() and Cache::Put() calls are
|
||
// running.
|
||
RefPtr<Promise> promise = mCacheStorage->Delete(mCacheName, IgnoreErrors());
|
||
|
||
// We don't care to know the result of the promise object.
|
||
}
|
||
|
||
// Always call this here to ensure the loaders array is cleared.
|
||
FailLoaders(NS_ERROR_FAILURE);
|
||
}
|
||
|
||
void
|
||
CacheScriptLoader::Fail(nsresult aRv)
|
||
{
|
||
AssertIsOnMainThread();
|
||
MOZ_ASSERT(NS_FAILED(aRv));
|
||
|
||
if (mFailed) {
|
||
return;
|
||
}
|
||
|
||
mFailed = true;
|
||
|
||
if (mPump) {
|
||
MOZ_ASSERT(mLoadInfo.mCacheStatus == ScriptLoadInfo::ReadingFromCache);
|
||
mPump->Cancel(aRv);
|
||
mPump = nullptr;
|
||
}
|
||
|
||
mLoadInfo.mCacheStatus = ScriptLoadInfo::Cancel;
|
||
|
||
// Stop if the load was aborted on the main thread.
|
||
// Can't use Finished() because mCachePromise may still be true.
|
||
if (mLoadInfo.mLoadingFinished) {
|
||
MOZ_ASSERT(!mLoadInfo.mChannel);
|
||
MOZ_ASSERT_IF(mLoadInfo.mCachePromise,
|
||
mLoadInfo.mCacheStatus == ScriptLoadInfo::WritingToCache ||
|
||
mLoadInfo.mCacheStatus == ScriptLoadInfo::Cancel);
|
||
return;
|
||
}
|
||
|
||
mRunnable->LoadingFinished(mIndex, aRv);
|
||
}
|
||
|
||
void
|
||
CacheScriptLoader::Load(Cache* aCache)
|
||
{
|
||
AssertIsOnMainThread();
|
||
MOZ_ASSERT(aCache);
|
||
|
||
nsCOMPtr<nsIURI> uri;
|
||
nsresult rv = NS_NewURI(getter_AddRefs(uri), mLoadInfo.mURL, nullptr,
|
||
mBaseURI);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
Fail(rv);
|
||
return;
|
||
}
|
||
|
||
nsAutoCString spec;
|
||
rv = uri->GetSpec(spec);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
Fail(rv);
|
||
return;
|
||
}
|
||
|
||
MOZ_ASSERT(mLoadInfo.mFullURL.IsEmpty());
|
||
CopyUTF8toUTF16(spec, mLoadInfo.mFullURL);
|
||
|
||
mozilla::dom::RequestOrUSVString request;
|
||
request.SetAsUSVString().Rebind(mLoadInfo.mFullURL.Data(),
|
||
mLoadInfo.mFullURL.Length());
|
||
|
||
mozilla::dom::CacheQueryOptions params;
|
||
|
||
// This JSContext will not end up executing JS code because here there are
|
||
// no ReadableStreams involved.
|
||
AutoJSAPI jsapi;
|
||
jsapi.Init();
|
||
|
||
ErrorResult error;
|
||
RefPtr<Promise> promise = aCache->Match(jsapi.cx(), request, params, error);
|
||
if (NS_WARN_IF(error.Failed())) {
|
||
Fail(error.StealNSResult());
|
||
return;
|
||
}
|
||
|
||
promise->AppendNativeHandler(this);
|
||
}
|
||
|
||
void
|
||
CacheScriptLoader::RejectedCallback(JSContext* aCx,
|
||
JS::Handle<JS::Value> aValue)
|
||
{
|
||
AssertIsOnMainThread();
|
||
MOZ_ASSERT(mLoadInfo.mCacheStatus == ScriptLoadInfo::Uncached);
|
||
Fail(NS_ERROR_FAILURE);
|
||
}
|
||
|
||
void
|
||
CacheScriptLoader::ResolvedCallback(JSContext* aCx,
|
||
JS::Handle<JS::Value> aValue)
|
||
{
|
||
AssertIsOnMainThread();
|
||
// If we have already called 'Fail', we should not proceed.
|
||
if (mFailed) {
|
||
return;
|
||
}
|
||
|
||
MOZ_ASSERT(mLoadInfo.mCacheStatus == ScriptLoadInfo::Uncached);
|
||
|
||
nsresult rv;
|
||
|
||
// The ServiceWorkerScriptCache will store data for any scripts it
|
||
// it knows about. This is always at least the top level script.
|
||
// Depending on if a previous version of the service worker has
|
||
// been installed or not it may also know about importScripts(). We
|
||
// must handle loading and offlining new importScripts() here, however.
|
||
if (aValue.isUndefined()) {
|
||
// If this is the main script or we're not loading a new service worker
|
||
// then this is an error. This can happen for internal reasons, like
|
||
// storage was probably wiped without removing the service worker
|
||
// registration. It can also happen for exposed reasons like the
|
||
// service worker script calling importScripts() after install.
|
||
if (NS_WARN_IF(mIsWorkerScript || (mState != ServiceWorkerState::Parsed &&
|
||
mState != ServiceWorkerState::Installing))) {
|
||
Fail(NS_ERROR_DOM_INVALID_STATE_ERR);
|
||
return;
|
||
}
|
||
|
||
mLoadInfo.mCacheStatus = ScriptLoadInfo::ToBeCached;
|
||
rv = mRunnable->LoadScript(mIndex);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
Fail(rv);
|
||
}
|
||
return;
|
||
}
|
||
|
||
MOZ_ASSERT(aValue.isObject());
|
||
|
||
JS::Rooted<JSObject*> obj(aCx, &aValue.toObject());
|
||
mozilla::dom::Response* response = nullptr;
|
||
rv = UNWRAP_OBJECT(Response, &obj, response);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
Fail(rv);
|
||
return;
|
||
}
|
||
|
||
InternalHeaders* headers = response->GetInternalHeaders();
|
||
|
||
headers->Get(NS_LITERAL_CSTRING("content-security-policy"),
|
||
mCSPHeaderValue, IgnoreErrors());
|
||
headers->Get(NS_LITERAL_CSTRING("content-security-policy-report-only"),
|
||
mCSPReportOnlyHeaderValue, IgnoreErrors());
|
||
headers->Get(NS_LITERAL_CSTRING("referrer-policy"),
|
||
mReferrerPolicyHeaderValue, IgnoreErrors());
|
||
|
||
nsCOMPtr<nsIInputStream> inputStream;
|
||
response->GetBody(getter_AddRefs(inputStream));
|
||
mChannelInfo = response->GetChannelInfo();
|
||
const UniquePtr<PrincipalInfo>& pInfo = response->GetPrincipalInfo();
|
||
if (pInfo) {
|
||
mPrincipalInfo = mozilla::MakeUnique<PrincipalInfo>(*pInfo);
|
||
}
|
||
|
||
if (!inputStream) {
|
||
mLoadInfo.mCacheStatus = ScriptLoadInfo::Cached;
|
||
mRunnable->DataReceivedFromCache(mIndex, (uint8_t*)"", 0, mChannelInfo,
|
||
std::move(mPrincipalInfo), mCSPHeaderValue,
|
||
mCSPReportOnlyHeaderValue,
|
||
mReferrerPolicyHeaderValue);
|
||
return;
|
||
}
|
||
|
||
MOZ_ASSERT(!mPump);
|
||
rv = NS_NewInputStreamPump(getter_AddRefs(mPump),
|
||
inputStream.forget(),
|
||
0, /* default segsize */
|
||
0, /* default segcount */
|
||
false, /* default closeWhenDone */
|
||
mMainThreadEventTarget);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
Fail(rv);
|
||
return;
|
||
}
|
||
|
||
nsCOMPtr<nsIStreamLoader> loader;
|
||
rv = NS_NewStreamLoader(getter_AddRefs(loader), this);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
Fail(rv);
|
||
return;
|
||
}
|
||
|
||
rv = mPump->AsyncRead(loader, nullptr);
|
||
if (NS_WARN_IF(NS_FAILED(rv))) {
|
||
mPump = nullptr;
|
||
Fail(rv);
|
||
return;
|
||
}
|
||
|
||
|
||
nsCOMPtr<nsIThreadRetargetableRequest> rr = do_QueryInterface(mPump);
|
||
if (rr) {
|
||
nsCOMPtr<nsIEventTarget> sts =
|
||
do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID);
|
||
rv = rr->RetargetDeliveryTo(sts);
|
||
if (NS_FAILED(rv)) {
|
||
NS_WARNING("Failed to dispatch the nsIInputStreamPump to a IO thread.");
|
||
}
|
||
}
|
||
|
||
mLoadInfo.mCacheStatus = ScriptLoadInfo::ReadingFromCache;
|
||
}
|
||
|
||
NS_IMETHODIMP
|
||
CacheScriptLoader::OnStreamComplete(nsIStreamLoader* aLoader, nsISupports* aContext,
|
||
nsresult aStatus, uint32_t aStringLen,
|
||
const uint8_t* aString)
|
||
{
|
||
AssertIsOnMainThread();
|
||
|
||
mPump = nullptr;
|
||
|
||
if (NS_FAILED(aStatus)) {
|
||
MOZ_ASSERT(mLoadInfo.mCacheStatus == ScriptLoadInfo::ReadingFromCache ||
|
||
mLoadInfo.mCacheStatus == ScriptLoadInfo::Cancel);
|
||
Fail(aStatus);
|
||
return NS_OK;
|
||
}
|
||
|
||
MOZ_ASSERT(mLoadInfo.mCacheStatus == ScriptLoadInfo::ReadingFromCache);
|
||
mLoadInfo.mCacheStatus = ScriptLoadInfo::Cached;
|
||
|
||
MOZ_ASSERT(mPrincipalInfo);
|
||
mRunnable->DataReceivedFromCache(mIndex, aString, aStringLen, mChannelInfo,
|
||
std::move(mPrincipalInfo), mCSPHeaderValue,
|
||
mCSPReportOnlyHeaderValue,
|
||
mReferrerPolicyHeaderValue);
|
||
return NS_OK;
|
||
}
|
||
|
||
class ChannelGetterRunnable final : public WorkerMainThreadRunnable
|
||
{
|
||
const nsAString& mScriptURL;
|
||
const ClientInfo mClientInfo;
|
||
WorkerLoadInfo& mLoadInfo;
|
||
nsresult mResult;
|
||
|
||
public:
|
||
ChannelGetterRunnable(WorkerPrivate* aParentWorker,
|
||
const nsAString& aScriptURL,
|
||
WorkerLoadInfo& aLoadInfo)
|
||
: WorkerMainThreadRunnable(aParentWorker,
|
||
NS_LITERAL_CSTRING("ScriptLoader :: ChannelGetter"))
|
||
, mScriptURL(aScriptURL)
|
||
// ClientInfo should always be present since this should not be called
|
||
// if parent's status is greater than Running.
|
||
, mClientInfo(aParentWorker->GetClientInfo().ref())
|
||
, mLoadInfo(aLoadInfo)
|
||
, mResult(NS_ERROR_FAILURE)
|
||
{
|
||
MOZ_ASSERT(aParentWorker);
|
||
aParentWorker->AssertIsOnWorkerThread();
|
||
}
|
||
|
||
virtual bool
|
||
MainThreadRun() override
|
||
{
|
||
AssertIsOnMainThread();
|
||
|
||
// Initialize the WorkerLoadInfo principal to our triggering principal
|
||
// before doing anything else. Normally we do this in the WorkerPrivate
|
||
// Constructor, but we can't do so off the main thread when creating
|
||
// a nested worker. So do it here instead.
|
||
mLoadInfo.mLoadingPrincipal = mWorkerPrivate->GetPrincipal();
|
||
MOZ_DIAGNOSTIC_ASSERT(mLoadInfo.mLoadingPrincipal);
|
||
|
||
mLoadInfo.mPrincipal = mLoadInfo.mLoadingPrincipal;
|
||
|
||
// Figure out our base URI.
|
||
nsCOMPtr<nsIURI> baseURI = mWorkerPrivate->GetBaseURI();
|
||
MOZ_ASSERT(baseURI);
|
||
|
||
// May be null.
|
||
nsCOMPtr<nsIDocument> parentDoc = mWorkerPrivate->GetDocument();
|
||
|
||
mLoadInfo.mLoadGroup = mWorkerPrivate->GetLoadGroup();
|
||
|
||
// Nested workers use default uri encoding.
|
||
nsCOMPtr<nsIURI> url;
|
||
mResult = ConstructURI(mScriptURL, baseURI, parentDoc, true,
|
||
getter_AddRefs(url));
|
||
NS_ENSURE_SUCCESS(mResult, true);
|
||
|
||
Maybe<ClientInfo> clientInfo;
|
||
clientInfo.emplace(mClientInfo);
|
||
|
||
nsCOMPtr<nsIChannel> channel;
|
||
mResult = workerinternals::
|
||
ChannelFromScriptURLMainThread(mLoadInfo.mLoadingPrincipal,
|
||
parentDoc,
|
||
mLoadInfo.mLoadGroup,
|
||
url,
|
||
clientInfo,
|
||
// Nested workers are always dedicated.
|
||
nsIContentPolicy::TYPE_INTERNAL_WORKER,
|
||
getter_AddRefs(channel));
|
||
NS_ENSURE_SUCCESS(mResult, true);
|
||
|
||
mResult = mLoadInfo.SetPrincipalFromChannel(channel);
|
||
NS_ENSURE_SUCCESS(mResult, true);
|
||
|
||
mLoadInfo.mChannel = channel.forget();
|
||
return true;
|
||
}
|
||
|
||
nsresult
|
||
GetResult() const
|
||
{
|
||
return mResult;
|
||
}
|
||
|
||
private:
|
||
virtual ~ChannelGetterRunnable()
|
||
{ }
|
||
};
|
||
|
||
ScriptExecutorRunnable::ScriptExecutorRunnable(
|
||
ScriptLoaderRunnable& aScriptLoader,
|
||
nsIEventTarget* aSyncLoopTarget,
|
||
bool aIsWorkerScript,
|
||
uint32_t aFirstIndex,
|
||
uint32_t aLastIndex)
|
||
: MainThreadWorkerSyncRunnable(aScriptLoader.mWorkerPrivate, aSyncLoopTarget),
|
||
mScriptLoader(aScriptLoader), mIsWorkerScript(aIsWorkerScript),
|
||
mFirstIndex(aFirstIndex), mLastIndex(aLastIndex)
|
||
{
|
||
MOZ_ASSERT(aFirstIndex <= aLastIndex);
|
||
MOZ_ASSERT(aLastIndex < aScriptLoader.mLoadInfos.Length());
|
||
}
|
||
|
||
bool
|
||
ScriptExecutorRunnable::IsDebuggerRunnable() const
|
||
{
|
||
// ScriptExecutorRunnable is used to execute both worker and debugger scripts.
|
||
// In the latter case, the runnable needs to be dispatched to the debugger
|
||
// queue.
|
||
return mScriptLoader.mWorkerScriptType == DebuggerScript;
|
||
}
|
||
|
||
bool
|
||
ScriptExecutorRunnable::PreRun(WorkerPrivate* aWorkerPrivate)
|
||
{
|
||
aWorkerPrivate->AssertIsOnWorkerThread();
|
||
|
||
if (!mIsWorkerScript) {
|
||
return true;
|
||
}
|
||
|
||
if (!aWorkerPrivate->GetJSContext()) {
|
||
return false;
|
||
}
|
||
|
||
MOZ_ASSERT(mFirstIndex == 0);
|
||
MOZ_ASSERT(!mScriptLoader.mRv.Failed());
|
||
|
||
AutoJSAPI jsapi;
|
||
jsapi.Init();
|
||
|
||
WorkerGlobalScope* globalScope =
|
||
aWorkerPrivate->GetOrCreateGlobalScope(jsapi.cx());
|
||
if (NS_WARN_IF(!globalScope)) {
|
||
NS_WARNING("Failed to make global!");
|
||
// There's no way to report the exception on jsapi right now, because there
|
||
// is no way to even enter a compartment on this thread anymore. Just clear
|
||
// the exception. We'll report some sort of error to our caller in
|
||
// ShutdownScriptLoader, but it will get squelched for the same reason we're
|
||
// squelching here: all the error reporting machinery relies on being able
|
||
// to enter a compartment to report the error.
|
||
jsapi.ClearException();
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
bool
|
||
ScriptExecutorRunnable::WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
|
||
{
|
||
aWorkerPrivate->AssertIsOnWorkerThread();
|
||
|
||
nsTArray<ScriptLoadInfo>& loadInfos = mScriptLoader.mLoadInfos;
|
||
|
||
// Don't run if something else has already failed.
|
||
for (uint32_t index = 0; index < mFirstIndex; index++) {
|
||
ScriptLoadInfo& loadInfo = loadInfos.ElementAt(index);
|
||
|
||
NS_ASSERTION(!loadInfo.mChannel, "Should no longer have a channel!");
|
||
NS_ASSERTION(loadInfo.mExecutionScheduled, "Should be scheduled!");
|
||
|
||
if (!loadInfo.mExecutionResult) {
|
||
return true;
|
||
}
|
||
}
|
||
|
||
// If nothing else has failed, our ErrorResult better not be a failure either.
|
||
MOZ_ASSERT(!mScriptLoader.mRv.Failed(), "Who failed it and why?");
|
||
|
||
// Slightly icky action at a distance, but there's no better place to stash
|
||
// this value, really.
|
||
JS::Rooted<JSObject*> global(aCx, JS::CurrentGlobalOrNull(aCx));
|
||
MOZ_ASSERT(global);
|
||
|
||
for (uint32_t index = mFirstIndex; index <= mLastIndex; index++) {
|
||
ScriptLoadInfo& loadInfo = loadInfos.ElementAt(index);
|
||
|
||
NS_ASSERTION(!loadInfo.mChannel, "Should no longer have a channel!");
|
||
NS_ASSERTION(loadInfo.mExecutionScheduled, "Should be scheduled!");
|
||
NS_ASSERTION(!loadInfo.mExecutionResult, "Should not have executed yet!");
|
||
|
||
MOZ_ASSERT(!mScriptLoader.mRv.Failed(), "Who failed it and why?");
|
||
mScriptLoader.mRv.MightThrowJSException();
|
||
if (NS_FAILED(loadInfo.mLoadResult)) {
|
||
workerinternals::ReportLoadError(mScriptLoader.mRv,
|
||
loadInfo.mLoadResult, loadInfo.mURL);
|
||
return true;
|
||
}
|
||
|
||
// If this is a top level script that succeeded, then mark the
|
||
// Client execution ready and possible controlled by a service worker.
|
||
if (mIsWorkerScript) {
|
||
if (mScriptLoader.mController.isSome()) {
|
||
aWorkerPrivate->Control(mScriptLoader.mController.ref());
|
||
}
|
||
aWorkerPrivate->ExecutionReady();
|
||
}
|
||
|
||
NS_ConvertUTF16toUTF8 filename(loadInfo.mURL);
|
||
|
||
JS::CompileOptions options(aCx);
|
||
options.setFileAndLine(filename.get(), 1)
|
||
.setNoScriptRval(true);
|
||
|
||
MOZ_ASSERT(loadInfo.mMutedErrorFlag.isSome());
|
||
options.setMutedErrors(loadInfo.mMutedErrorFlag.valueOr(true));
|
||
|
||
// Pass ownership of the data, first to local variables, then to the
|
||
// UniqueTwoByteChars moved into the |init| function.
|
||
size_t dataLength = 0;
|
||
char16_t* data = nullptr;
|
||
|
||
std::swap(dataLength, loadInfo.mScriptTextLength);
|
||
std::swap(data, loadInfo.mScriptTextBuf);
|
||
|
||
JS::SourceText<char16_t> srcBuf;
|
||
if (!srcBuf.init(aCx, JS::UniqueTwoByteChars(data), dataLength)) {
|
||
mScriptLoader.mRv.StealExceptionFromJSContext(aCx);
|
||
return true;
|
||
}
|
||
|
||
// Our ErrorResult still shouldn't be a failure.
|
||
MOZ_ASSERT(!mScriptLoader.mRv.Failed(), "Who failed it and why?");
|
||
JS::Rooted<JS::Value> unused(aCx);
|
||
if (!JS::Evaluate(aCx, options, srcBuf, &unused)) {
|
||
mScriptLoader.mRv.StealExceptionFromJSContext(aCx);
|
||
return true;
|
||
}
|
||
|
||
loadInfo.mExecutionResult = true;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
void
|
||
ScriptExecutorRunnable::PostRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate,
|
||
bool aRunResult)
|
||
{
|
||
aWorkerPrivate->AssertIsOnWorkerThread();
|
||
MOZ_ASSERT(!JS_IsExceptionPending(aCx), "Who left an exception on there?");
|
||
|
||
nsTArray<ScriptLoadInfo>& loadInfos = mScriptLoader.mLoadInfos;
|
||
|
||
if (mLastIndex == loadInfos.Length() - 1) {
|
||
// All done. If anything failed then return false.
|
||
bool result = true;
|
||
bool mutedError = false;
|
||
for (uint32_t index = 0; index < loadInfos.Length(); index++) {
|
||
if (!loadInfos[index].mExecutionResult) {
|
||
mutedError = loadInfos[index].mMutedErrorFlag.valueOr(true);
|
||
result = false;
|
||
break;
|
||
}
|
||
}
|
||
|
||
// The only way we can get here with "result" false but without
|
||
// mScriptLoader.mRv being a failure is if we're loading the main worker
|
||
// script and GetOrCreateGlobalScope() fails. In that case we would have
|
||
// returned false from WorkerRun, so assert that.
|
||
MOZ_ASSERT_IF(!result && !mScriptLoader.mRv.Failed(),
|
||
!aRunResult);
|
||
ShutdownScriptLoader(aCx, aWorkerPrivate, result, mutedError);
|
||
}
|
||
}
|
||
|
||
nsresult
|
||
ScriptExecutorRunnable::Cancel()
|
||
{
|
||
if (mLastIndex == mScriptLoader.mLoadInfos.Length() - 1) {
|
||
ShutdownScriptLoader(mWorkerPrivate->GetJSContext(), mWorkerPrivate,
|
||
false, false);
|
||
}
|
||
return MainThreadWorkerSyncRunnable::Cancel();
|
||
}
|
||
|
||
void
|
||
ScriptExecutorRunnable::ShutdownScriptLoader(JSContext* aCx,
|
||
WorkerPrivate* aWorkerPrivate,
|
||
bool aResult,
|
||
bool aMutedError)
|
||
{
|
||
aWorkerPrivate->AssertIsOnWorkerThread();
|
||
|
||
MOZ_ASSERT(mLastIndex == mScriptLoader.mLoadInfos.Length() - 1);
|
||
|
||
if (mIsWorkerScript) {
|
||
aWorkerPrivate->SetLoadingWorkerScript(false);
|
||
}
|
||
|
||
if (!aResult) {
|
||
// At this point there are two possibilities:
|
||
//
|
||
// 1) mScriptLoader.mRv.Failed(). In that case we just want to leave it
|
||
// as-is, except if it has a JS exception and we need to mute JS
|
||
// exceptions. In that case, we log the exception without firing any
|
||
// events and then replace it on the ErrorResult with a NetworkError,
|
||
// per spec.
|
||
//
|
||
// 2) mScriptLoader.mRv succeeded. As far as I can tell, this can only
|
||
// happen when loading the main worker script and
|
||
// GetOrCreateGlobalScope() fails or if ScriptExecutorRunnable::Cancel
|
||
// got called. Does it matter what we throw in this case? I'm not
|
||
// sure...
|
||
if (mScriptLoader.mRv.Failed()) {
|
||
if (aMutedError && mScriptLoader.mRv.IsJSException()) {
|
||
LogExceptionToConsole(aCx, aWorkerPrivate);
|
||
mScriptLoader.mRv.ThrowWithCustomCleanup(NS_ERROR_DOM_NETWORK_ERR);
|
||
}
|
||
} else {
|
||
mScriptLoader.mRv.ThrowWithCustomCleanup(NS_ERROR_DOM_INVALID_STATE_ERR);
|
||
}
|
||
}
|
||
|
||
aWorkerPrivate->StopSyncLoop(mSyncLoopTarget, aResult);
|
||
}
|
||
|
||
void
|
||
ScriptExecutorRunnable::LogExceptionToConsole(JSContext* aCx,
|
||
WorkerPrivate* aWorkerPrivate)
|
||
{
|
||
aWorkerPrivate->AssertIsOnWorkerThread();
|
||
|
||
MOZ_ASSERT(mScriptLoader.mRv.IsJSException());
|
||
|
||
JS::Rooted<JS::Value> exn(aCx);
|
||
if (!ToJSValue(aCx, mScriptLoader.mRv, &exn)) {
|
||
return;
|
||
}
|
||
|
||
// Now the exception state should all be in exn.
|
||
MOZ_ASSERT(!JS_IsExceptionPending(aCx));
|
||
MOZ_ASSERT(!mScriptLoader.mRv.Failed());
|
||
|
||
js::ErrorReport report(aCx);
|
||
if (!report.init(aCx, exn, js::ErrorReport::WithSideEffects)) {
|
||
JS_ClearPendingException(aCx);
|
||
return;
|
||
}
|
||
|
||
RefPtr<xpc::ErrorReport> xpcReport = new xpc::ErrorReport();
|
||
xpcReport->Init(report.report(), report.toStringResult().c_str(),
|
||
aWorkerPrivate->IsChromeWorker(), aWorkerPrivate->WindowID());
|
||
|
||
RefPtr<AsyncErrorReporter> r = new AsyncErrorReporter(xpcReport);
|
||
NS_DispatchToMainThread(r);
|
||
}
|
||
|
||
void
|
||
LoadAllScripts(WorkerPrivate* aWorkerPrivate,
|
||
nsTArray<ScriptLoadInfo>& aLoadInfos, bool aIsMainScript,
|
||
WorkerScriptType aWorkerScriptType, ErrorResult& aRv)
|
||
{
|
||
aWorkerPrivate->AssertIsOnWorkerThread();
|
||
NS_ASSERTION(!aLoadInfos.IsEmpty(), "Bad arguments!");
|
||
|
||
AutoSyncLoopHolder syncLoop(aWorkerPrivate, Canceling);
|
||
nsCOMPtr<nsIEventTarget> syncLoopTarget = syncLoop.GetEventTarget();
|
||
if (!syncLoopTarget) {
|
||
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
||
return;
|
||
}
|
||
|
||
Maybe<ClientInfo> clientInfo;
|
||
Maybe<ServiceWorkerDescriptor> controller;
|
||
if (!aIsMainScript) {
|
||
clientInfo = aWorkerPrivate->GetClientInfo();
|
||
controller = aWorkerPrivate->GetController();
|
||
}
|
||
|
||
RefPtr<ScriptLoaderRunnable> loader =
|
||
new ScriptLoaderRunnable(aWorkerPrivate, syncLoopTarget, aLoadInfos,
|
||
clientInfo, controller,
|
||
aIsMainScript, aWorkerScriptType, aRv);
|
||
|
||
NS_ASSERTION(aLoadInfos.IsEmpty(), "Should have swapped!");
|
||
|
||
RefPtr<StrongWorkerRef> workerRef =
|
||
StrongWorkerRef::Create(aWorkerPrivate, "ScriptLoader", [loader]() {
|
||
NS_DispatchToMainThread(NewRunnableMethod("ScriptLoader::CancelMainThreadWithBindingAborted",
|
||
loader,
|
||
&ScriptLoaderRunnable::CancelMainThreadWithBindingAborted));
|
||
});
|
||
|
||
if (NS_WARN_IF(!workerRef)) {
|
||
aRv.Throw(NS_ERROR_FAILURE);
|
||
return;
|
||
}
|
||
|
||
if (NS_FAILED(NS_DispatchToMainThread(loader))) {
|
||
NS_ERROR("Failed to dispatch!");
|
||
aRv.Throw(NS_ERROR_FAILURE);
|
||
return;
|
||
}
|
||
|
||
syncLoop.Run();
|
||
}
|
||
|
||
} /* anonymous namespace */
|
||
|
||
namespace workerinternals {
|
||
|
||
nsresult
|
||
ChannelFromScriptURLMainThread(nsIPrincipal* aPrincipal,
|
||
nsIDocument* aParentDoc,
|
||
nsILoadGroup* aLoadGroup,
|
||
nsIURI* aScriptURL,
|
||
const Maybe<ClientInfo>& aClientInfo,
|
||
nsContentPolicyType aMainScriptContentPolicyType,
|
||
nsIChannel** aChannel)
|
||
{
|
||
AssertIsOnMainThread();
|
||
|
||
nsCOMPtr<nsIIOService> ios(do_GetIOService());
|
||
|
||
nsIScriptSecurityManager* secMan = nsContentUtils::GetSecurityManager();
|
||
NS_ASSERTION(secMan, "This should never be null!");
|
||
|
||
return ChannelFromScriptURL(aPrincipal, aParentDoc, nullptr,
|
||
aLoadGroup, ios, secMan, aScriptURL, aClientInfo,
|
||
Maybe<ServiceWorkerDescriptor>(),
|
||
true, WorkerScript, aMainScriptContentPolicyType,
|
||
nsIRequest::LOAD_NORMAL, aChannel);
|
||
}
|
||
|
||
nsresult
|
||
ChannelFromScriptURLWorkerThread(JSContext* aCx,
|
||
WorkerPrivate* aParent,
|
||
const nsAString& aScriptURL,
|
||
WorkerLoadInfo& aLoadInfo)
|
||
{
|
||
aParent->AssertIsOnWorkerThread();
|
||
|
||
RefPtr<ChannelGetterRunnable> getter =
|
||
new ChannelGetterRunnable(aParent, aScriptURL, aLoadInfo);
|
||
|
||
ErrorResult rv;
|
||
getter->Dispatch(Canceling, rv);
|
||
if (rv.Failed()) {
|
||
NS_ERROR("Failed to dispatch!");
|
||
return rv.StealNSResult();
|
||
}
|
||
|
||
return getter->GetResult();
|
||
}
|
||
|
||
void ReportLoadError(ErrorResult& aRv, nsresult aLoadResult,
|
||
const nsAString& aScriptURL)
|
||
{
|
||
MOZ_ASSERT(!aRv.Failed());
|
||
|
||
switch (aLoadResult) {
|
||
case NS_ERROR_FILE_NOT_FOUND:
|
||
case NS_ERROR_NOT_AVAILABLE:
|
||
aLoadResult = NS_ERROR_DOM_NETWORK_ERR;
|
||
break;
|
||
|
||
case NS_ERROR_MALFORMED_URI:
|
||
aLoadResult = NS_ERROR_DOM_SYNTAX_ERR;
|
||
break;
|
||
|
||
case NS_BINDING_ABORTED:
|
||
// Note: we used to pretend like we didn't set an exception for
|
||
// NS_BINDING_ABORTED, but then ShutdownScriptLoader did it anyway. The
|
||
// other callsite, in WorkerPrivate::Constructor, never passed in
|
||
// NS_BINDING_ABORTED. So just throw it directly here. Consumers will
|
||
// deal as needed. But note that we do NOT want to ThrowDOMException()
|
||
// for this case, because that will make it impossible for consumers to
|
||
// realize that our error was NS_BINDING_ABORTED.
|
||
aRv.Throw(aLoadResult);
|
||
return;
|
||
|
||
case NS_ERROR_DOM_SECURITY_ERR:
|
||
case NS_ERROR_DOM_SYNTAX_ERR:
|
||
break;
|
||
|
||
case NS_ERROR_DOM_BAD_URI:
|
||
// This is actually a security error.
|
||
aLoadResult = NS_ERROR_DOM_SECURITY_ERR;
|
||
break;
|
||
|
||
default:
|
||
// For lack of anything better, go ahead and throw a NetworkError here.
|
||
// We don't want to throw a JS exception, because for toplevel script
|
||
// loads that would get squelched.
|
||
aRv.ThrowDOMException(NS_ERROR_DOM_NETWORK_ERR,
|
||
nsPrintfCString("Failed to load worker script at %s (nsresult = 0x%" PRIx32 ")",
|
||
NS_ConvertUTF16toUTF8(aScriptURL).get(),
|
||
static_cast<uint32_t>(aLoadResult)));
|
||
return;
|
||
}
|
||
|
||
aRv.ThrowDOMException(aLoadResult,
|
||
NS_LITERAL_CSTRING("Failed to load worker script at \"") +
|
||
NS_ConvertUTF16toUTF8(aScriptURL) +
|
||
NS_LITERAL_CSTRING("\""));
|
||
}
|
||
|
||
void
|
||
LoadMainScript(WorkerPrivate* aWorkerPrivate,
|
||
const nsAString& aScriptURL,
|
||
WorkerScriptType aWorkerScriptType,
|
||
ErrorResult& aRv)
|
||
{
|
||
nsTArray<ScriptLoadInfo> loadInfos;
|
||
|
||
ScriptLoadInfo* info = loadInfos.AppendElement();
|
||
info->mURL = aScriptURL;
|
||
info->mLoadFlags = aWorkerPrivate->GetLoadFlags();
|
||
|
||
// We are loading the main script, so the worker's Client must be
|
||
// reserved.
|
||
info->mReservedClientInfo = aWorkerPrivate->GetClientInfo();
|
||
|
||
LoadAllScripts(aWorkerPrivate, loadInfos, true, aWorkerScriptType, aRv);
|
||
}
|
||
|
||
void
|
||
Load(WorkerPrivate* aWorkerPrivate,
|
||
const nsTArray<nsString>& aScriptURLs, WorkerScriptType aWorkerScriptType,
|
||
ErrorResult& aRv)
|
||
{
|
||
const uint32_t urlCount = aScriptURLs.Length();
|
||
|
||
if (!urlCount) {
|
||
return;
|
||
}
|
||
|
||
if (urlCount > MAX_CONCURRENT_SCRIPTS) {
|
||
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
|
||
return;
|
||
}
|
||
|
||
nsTArray<ScriptLoadInfo> loadInfos;
|
||
loadInfos.SetLength(urlCount);
|
||
|
||
for (uint32_t index = 0; index < urlCount; index++) {
|
||
loadInfos[index].mURL = aScriptURLs[index];
|
||
loadInfos[index].mLoadFlags = aWorkerPrivate->GetLoadFlags();
|
||
}
|
||
|
||
LoadAllScripts(aWorkerPrivate, loadInfos, false, aWorkerScriptType, aRv);
|
||
}
|
||
|
||
} // namespace workerinternals
|
||
|
||
} // dom namespace
|
||
} // mozilla namespace
|