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gecko/dom/workers/ServiceWorkerManager.cpp

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "ServiceWorkerManager.h"
#include "nsIDOMEventTarget.h"
#include "nsIDocument.h"
#include "nsIScriptSecurityManager.h"
#include "nsPIDOMWindow.h"
#include "jsapi.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/DOMError.h"
#include "mozilla/dom/ErrorEvent.h"
#include "mozilla/dom/InstallEventBinding.h"
#include "mozilla/dom/PromiseNativeHandler.h"
#include "nsContentUtils.h"
#include "nsNetUtil.h"
#include "nsProxyRelease.h"
#include "nsTArray.h"
#include "RuntimeService.h"
#include "ServiceWorker.h"
#include "ServiceWorkerClient.h"
#include "ServiceWorkerRegistration.h"
#include "ServiceWorkerEvents.h"
#include "WorkerInlines.h"
#include "WorkerPrivate.h"
#include "WorkerRunnable.h"
#include "WorkerScope.h"
using namespace mozilla;
using namespace mozilla::dom;
BEGIN_WORKERS_NAMESPACE
NS_IMPL_ISUPPORTS0(ServiceWorkerRegistrationInfo)
UpdatePromise::UpdatePromise()
: mState(Pending)
{
MOZ_COUNT_CTOR(UpdatePromise);
}
UpdatePromise::~UpdatePromise()
{
MOZ_COUNT_DTOR(UpdatePromise);
}
void
UpdatePromise::AddPromise(Promise* aPromise)
{
MOZ_ASSERT(mState == Pending);
mPromises.AppendElement(aPromise);
}
void
UpdatePromise::ResolveAllPromises(const nsACString& aScriptSpec, const nsACString& aScope)
{
AssertIsOnMainThread();
MOZ_ASSERT(mState == Pending);
mState = Resolved;
RuntimeService* rs = RuntimeService::GetOrCreateService();
MOZ_ASSERT(rs);
nsTArray<WeakPtr<Promise>> array;
array.SwapElements(mPromises);
for (uint32_t i = 0; i < array.Length(); ++i) {
WeakPtr<Promise>& pendingPromise = array.ElementAt(i);
if (pendingPromise) {
nsRefPtr<Promise> kungfuDeathGrip = pendingPromise.get();
nsCOMPtr<nsIGlobalObject> go =
do_QueryInterface(pendingPromise->GetParentObject());
MOZ_ASSERT(go);
AutoSafeJSContext cx;
JS::Rooted<JSObject*> global(cx, go->GetGlobalJSObject());
JSAutoCompartment ac(cx, global);
GlobalObject domGlobal(cx, global);
// The service worker is created and kept alive as a SharedWorker.
nsRefPtr<ServiceWorker> serviceWorker;
nsresult rv = rs->CreateServiceWorker(domGlobal,
NS_ConvertUTF8toUTF16(aScriptSpec),
aScope,
getter_AddRefs(serviceWorker));
if (NS_WARN_IF(NS_FAILED(rv))) {
pendingPromise->MaybeReject(NS_ERROR_DOM_ABORT_ERR);
continue;
}
// Since ServiceWorkerRegistration is only exposed to windows we can be
// certain about this cast.
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(go);
nsRefPtr<ServiceWorkerRegistration> swr =
new ServiceWorkerRegistration(window, NS_ConvertUTF8toUTF16(aScope));
pendingPromise->MaybeResolve(swr);
}
}
}
void
UpdatePromise::RejectAllPromises(nsresult aRv)
{
AssertIsOnMainThread();
MOZ_ASSERT(mState == Pending);
mState = Rejected;
nsTArray<WeakPtr<Promise>> array;
array.SwapElements(mPromises);
for (uint32_t i = 0; i < array.Length(); ++i) {
WeakPtr<Promise>& pendingPromise = array.ElementAt(i);
if (pendingPromise) {
// Since ServiceWorkerRegistration is only exposed to windows we can be
// certain about this cast.
nsCOMPtr<nsPIDOMWindow> window =
do_QueryInterface(pendingPromise->GetParentObject());
MOZ_ASSERT(window);
nsRefPtr<DOMError> domError = new DOMError(window, aRv);
pendingPromise->MaybeRejectBrokenly(domError);
}
}
}
void
UpdatePromise::RejectAllPromises(const ErrorEventInit& aErrorDesc)
{
MOZ_ASSERT(mState == Pending);
mState = Rejected;
nsTArray<WeakPtr<Promise>> array;
array.SwapElements(mPromises);
for (uint32_t i = 0; i < array.Length(); ++i) {
WeakPtr<Promise>& pendingPromise = array.ElementAt(i);
if (pendingPromise) {
// Since ServiceWorkerRegistration is only exposed to windows we can be
// certain about this cast.
nsCOMPtr<nsIGlobalObject> go = do_QueryInterface(pendingPromise->GetParentObject());
MOZ_ASSERT(go);
AutoJSAPI jsapi;
jsapi.Init(go);
JSContext* cx = jsapi.cx();
JS::Rooted<JSString*> stack(cx, JS_GetEmptyString(JS_GetRuntime(cx)));
JS::Rooted<JS::Value> fnval(cx);
if (!ToJSValue(cx, aErrorDesc.mFilename, &fnval)) {
pendingPromise->MaybeReject(NS_ERROR_FAILURE);
continue;
}
JS::Rooted<JSString*> fn(cx, fnval.toString());
JS::Rooted<JS::Value> msgval(cx);
if (!ToJSValue(cx, aErrorDesc.mMessage, &msgval)) {
pendingPromise->MaybeReject(NS_ERROR_FAILURE);
continue;
}
JS::Rooted<JSString*> msg(cx, msgval.toString());
JS::Rooted<JS::Value> error(cx);
if (!JS::CreateError(cx, JSEXN_ERR, stack, fn, aErrorDesc.mLineno,
aErrorDesc.mColno, nullptr, msg, &error)) {
pendingPromise->MaybeReject(NS_ERROR_FAILURE);
continue;
}
pendingPromise->MaybeReject(cx, error);
}
}
}
void
ServiceWorkerRegistrationInfo::Clear()
{
if (mInstallingWorker) {
// FIXME(nsm): Terminate installing worker.
// Bug 1043701 Set state to redundant.
// Fire statechange.
mInstallingWorker = nullptr;
// FIXME(nsm): Abort any inflight requests from installing worker.
}
if (mWaitingWorker) {
// FIXME(nsm): Bug 1043701 Set state to redundant.
// Fire statechange.
mWaitingWorker = nullptr;
}
if (mCurrentWorker) {
// FIXME(nsm): Bug 1043701 Set state to redundant.
mCurrentWorker = nullptr;
}
nsRefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
MOZ_ASSERT(swm);
swm->InvalidateServiceWorkerRegistrationWorker(this,
WhichServiceWorker::INSTALLING_WORKER |
WhichServiceWorker::WAITING_WORKER |
WhichServiceWorker::ACTIVE_WORKER);
}
class FinishFetchOnMainThreadRunnable : public nsRunnable
{
nsMainThreadPtrHandle<ServiceWorkerUpdateInstance> mUpdateInstance;
public:
explicit FinishFetchOnMainThreadRunnable
(const nsMainThreadPtrHandle<ServiceWorkerUpdateInstance>& aUpdateInstance)
: mUpdateInstance(aUpdateInstance)
{ }
NS_IMETHOD
Run() MOZ_OVERRIDE;
};
class FinishSuccessfulFetchWorkerRunnable : public WorkerRunnable
{
nsMainThreadPtrHandle<ServiceWorkerUpdateInstance> mUpdateInstance;
public:
FinishSuccessfulFetchWorkerRunnable(WorkerPrivate* aWorkerPrivate,
const nsMainThreadPtrHandle<ServiceWorkerUpdateInstance>& aUpdateInstance)
: WorkerRunnable(aWorkerPrivate, WorkerThreadModifyBusyCount),
mUpdateInstance(aUpdateInstance)
{
AssertIsOnMainThread();
}
bool
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
{
aWorkerPrivate->AssertIsOnWorkerThread();
if (!aWorkerPrivate->WorkerScriptExecutedSuccessfully()) {
return true;
}
nsRefPtr<FinishFetchOnMainThreadRunnable> r =
new FinishFetchOnMainThreadRunnable(mUpdateInstance);
NS_DispatchToMainThread(r);
return true;
}
};
// Allows newer calls to Update() to 'abort' older calls.
// Each call to Update() creates the instance which handles creating the
// worker and queues up a runnable to resolve the update promise once the
// worker has successfully been parsed.
class ServiceWorkerUpdateInstance MOZ_FINAL : public nsISupports
{
nsRefPtr<ServiceWorkerRegistrationInfo> mRegistration;
nsCString mScriptSpec;
nsCOMPtr<nsPIDOMWindow> mWindow;
bool mAborted;
~ServiceWorkerUpdateInstance() {}
public:
NS_DECL_ISUPPORTS
ServiceWorkerUpdateInstance(ServiceWorkerRegistrationInfo *aRegistration,
nsPIDOMWindow* aWindow)
: mRegistration(aRegistration),
// Capture the current script spec in case register() gets called.
mScriptSpec(aRegistration->mScriptSpec),
mWindow(aWindow),
mAborted(false)
{
AssertIsOnMainThread();
}
const nsCString&
GetScriptSpec() const
{
return mScriptSpec;
}
void
Abort()
{
MOZ_ASSERT(!mAborted);
mAborted = true;
}
void
Update()
{
AssertIsOnMainThread();
nsRefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
MOZ_ASSERT(swm);
nsRefPtr<ServiceWorker> serviceWorker;
nsresult rv = swm->CreateServiceWorkerForWindow(mWindow,
mScriptSpec,
mRegistration->mScope,
getter_AddRefs(serviceWorker));
if (NS_WARN_IF(NS_FAILED(rv))) {
swm->RejectUpdatePromiseObservers(mRegistration, rv);
return;
}
nsMainThreadPtrHandle<ServiceWorkerUpdateInstance> handle(
new nsMainThreadPtrHolder<ServiceWorkerUpdateInstance>(this));
// FIXME(nsm): Deal with error case (worker failed to download, redirect,
// parse) in error handler patch.
nsRefPtr<FinishSuccessfulFetchWorkerRunnable> r =
new FinishSuccessfulFetchWorkerRunnable(serviceWorker->GetWorkerPrivate(), handle);
AutoSafeJSContext cx;
if (!r->Dispatch(cx)) {
swm->RejectUpdatePromiseObservers(mRegistration, NS_ERROR_FAILURE);
}
}
void
FetchDone()
{
AssertIsOnMainThread();
if (mAborted) {
return;
}
nsRefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
MOZ_ASSERT(swm);
swm->FinishFetch(mRegistration, mWindow);
}
};
NS_IMPL_ISUPPORTS0(ServiceWorkerUpdateInstance)
NS_IMETHODIMP
FinishFetchOnMainThreadRunnable::Run()
{
AssertIsOnMainThread();
mUpdateInstance->FetchDone();
return NS_OK;
}
ServiceWorkerRegistrationInfo::ServiceWorkerRegistrationInfo(const nsACString& aScope)
: mControlledDocumentsCounter(0),
mScope(aScope),
mPendingUninstall(false)
{ }
ServiceWorkerRegistrationInfo::~ServiceWorkerRegistrationInfo()
{
if (IsControllingDocuments()) {
NS_WARNING("ServiceWorkerRegistrationInfo is still controlling documents. This can be a bug or a leak in ServiceWorker API or in any other API that takes the document alive.");
}
}
//////////////////////////
// ServiceWorkerManager //
//////////////////////////
NS_IMPL_ADDREF(ServiceWorkerManager)
NS_IMPL_RELEASE(ServiceWorkerManager)
NS_INTERFACE_MAP_BEGIN(ServiceWorkerManager)
NS_INTERFACE_MAP_ENTRY(nsIServiceWorkerManager)
if (aIID.Equals(NS_GET_IID(ServiceWorkerManager)))
foundInterface = static_cast<nsIServiceWorkerManager*>(this);
else
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIServiceWorkerManager)
NS_INTERFACE_MAP_END
ServiceWorkerManager::ServiceWorkerManager()
{
}
ServiceWorkerManager::~ServiceWorkerManager()
{
// The map will assert if it is not empty when destroyed.
mDomainMap.EnumerateRead(CleanupServiceWorkerInformation, nullptr);
mDomainMap.Clear();
}
/* static */ PLDHashOperator
ServiceWorkerManager::CleanupServiceWorkerInformation(const nsACString& aDomain,
ServiceWorkerDomainInfo* aDomainInfo,
void *aUnused)
{
aDomainInfo->mServiceWorkerRegistrationInfos.Clear();
return PL_DHASH_NEXT;
}
/*
* Implements the async aspects of the register algorithm.
*/
class RegisterRunnable : public nsRunnable
{
nsCOMPtr<nsPIDOMWindow> mWindow;
const nsCString mScope;
nsCOMPtr<nsIURI> mScriptURI;
nsRefPtr<Promise> mPromise;
public:
RegisterRunnable(nsPIDOMWindow* aWindow, const nsCString aScope,
nsIURI* aScriptURI, Promise* aPromise)
: mWindow(aWindow), mScope(aScope), mScriptURI(aScriptURI),
mPromise(aPromise)
{ }
NS_IMETHODIMP
Run()
{
nsRefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
nsRefPtr<ServiceWorkerManager::ServiceWorkerDomainInfo> domainInfo = swm->GetDomainInfo(mScriptURI);
if (!domainInfo) {
nsCString domain;
nsresult rv = mScriptURI->GetHost(domain);
if (NS_WARN_IF(NS_FAILED(rv))) {
mPromise->MaybeReject(rv);
return NS_OK;
}
domainInfo = new ServiceWorkerManager::ServiceWorkerDomainInfo;
swm->mDomainMap.Put(domain, domainInfo);
}
nsRefPtr<ServiceWorkerRegistrationInfo> registration =
domainInfo->GetRegistration(mScope);
nsCString spec;
nsresult rv = mScriptURI->GetSpec(spec);
if (NS_WARN_IF(NS_FAILED(rv))) {
mPromise->MaybeReject(rv);
return NS_OK;
}
if (registration) {
registration->mPendingUninstall = false;
if (spec.Equals(registration->mScriptSpec)) {
// There is an existing update in progress. Resolve with whatever it
// results in.
if (registration->HasUpdatePromise()) {
registration->AddUpdatePromiseObserver(mPromise);
return NS_OK;
}
// There is no update in progress and since SW updating is upto the UA,
// we will not update right now. Simply resolve with whatever worker we
// have.
nsRefPtr<ServiceWorkerInfo> info = registration->Newest();
if (info) {
nsRefPtr<ServiceWorker> serviceWorker;
nsresult rv =
swm->CreateServiceWorkerForWindow(mWindow,
info->GetScriptSpec(),
registration->mScope,
getter_AddRefs(serviceWorker));
if (NS_WARN_IF(NS_FAILED(rv))) {
return NS_ERROR_FAILURE;
}
nsRefPtr<ServiceWorkerRegistration> swr =
new ServiceWorkerRegistration(mWindow,
NS_ConvertUTF8toUTF16(registration->mScope));
mPromise->MaybeResolve(swr);
return NS_OK;
}
}
} else {
registration = domainInfo->CreateNewRegistration(mScope);
}
registration->mScriptSpec = spec;
rv = swm->Update(registration, mWindow);
MOZ_ASSERT(registration->HasUpdatePromise());
// We append this register() call's promise after calling Update() because
// we don't want this one to be aborted when the others (existing updates
// for the same registration) are aborted. Update() sets a new
// UpdatePromise on the registration.
registration->mUpdatePromise->AddPromise(mPromise);
return rv;
}
};
// If we return an error code here, the ServiceWorkerContainer will
// automatically reject the Promise.
NS_IMETHODIMP
ServiceWorkerManager::Register(const nsAString& aScope,
const nsAString& aScriptURL,
nsISupports** aPromise)
{
AssertIsOnMainThread();
// XXXnsm Don't allow chrome callers for now, we don't support chrome
// ServiceWorkers.
MOZ_ASSERT(!nsContentUtils::IsCallerChrome());
nsCOMPtr<nsIGlobalObject> sgo = GetEntryGlobal();
MOZ_ASSERT(sgo, "Register() should only be called from a valid entry settings object!");
ErrorResult result;
nsRefPtr<Promise> promise = Promise::Create(sgo, result);
if (result.Failed()) {
return result.ErrorCode();
}
nsCOMPtr<nsIDocument> doc = GetEntryDocument();
if (!doc) {
return NS_ERROR_FAILURE;
}
// Although the spec says that the same-origin checks should also be done
// asynchronously, we do them in sync because the Promise created by the
// WebIDL infrastructure due to a returned error will be resolved
// asynchronously. We aren't making any internal state changes in these
// checks, so ordering of multiple calls is not affected.
nsCOMPtr<nsIURI> documentURI = doc->GetBaseURI();
bool httpsNeeded = true;
// FIXME(nsm): Bug 1003991. Disable check when devtools are open.
if (Preferences::GetBool("dom.serviceWorkers.testing.enabled")) {
httpsNeeded = false;
}
// No https needed for localhost.
if (httpsNeeded) {
nsAutoCString host;
result = documentURI->GetHost(host);
if (NS_WARN_IF(result.Failed())) {
return result.ErrorCode();
}
if (host.Equals("127.0.0.1") ||
host.Equals("localhost") ||
host.Equals("::1")) {
httpsNeeded = false;
}
}
if (httpsNeeded) {
bool isHttps;
result = documentURI->SchemeIs("https", &isHttps);
if (result.Failed() || !isHttps) {
NS_WARNING("ServiceWorker registration from insecure websites is not allowed.");
return NS_ERROR_DOM_SECURITY_ERR;
}
}
nsCOMPtr<nsIURI> scriptURI;
result = NS_NewURI(getter_AddRefs(scriptURI), aScriptURL, nullptr, documentURI);
if (NS_WARN_IF(result.Failed())) {
return result.ErrorCode();
}
// Data URLs are not allowed.
nsCOMPtr<nsIPrincipal> documentPrincipal = doc->NodePrincipal();
result = documentPrincipal->CheckMayLoad(scriptURI, true /* report */,
false /* allowIfInheritsPrincipal */);
if (result.Failed()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIURI> scopeURI;
result = NS_NewURI(getter_AddRefs(scopeURI), aScope, nullptr, documentURI);
if (NS_WARN_IF(result.Failed())) {
return NS_ERROR_DOM_SECURITY_ERR;
}
result = documentPrincipal->CheckMayLoad(scopeURI, true /* report */,
false /* allowIfInheritsPrinciple */);
if (result.Failed()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCString cleanedScope;
result = scopeURI->GetSpecIgnoringRef(cleanedScope);
if (NS_WARN_IF(result.Failed())) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsPIDOMWindow> window = do_QueryObject(sgo);
if (!window) {
return NS_ERROR_FAILURE;
}
nsRefPtr<nsIRunnable> registerRunnable =
new RegisterRunnable(window, cleanedScope, scriptURI, promise);
promise.forget(aPromise);
return NS_DispatchToCurrentThread(registerRunnable);
}
/*
* Implements the async aspects of the getRegistrations algorithm.
*/
class GetRegistrationsRunnable : public nsRunnable
{
nsCOMPtr<nsPIDOMWindow> mWindow;
nsRefPtr<Promise> mPromise;
public:
GetRegistrationsRunnable(nsPIDOMWindow* aWindow, Promise* aPromise)
: mWindow(aWindow), mPromise(aPromise)
{ }
NS_IMETHODIMP
Run()
{
nsRefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
nsIDocument* doc = mWindow->GetExtantDoc();
if (!doc) {
mPromise->MaybeReject(NS_ERROR_UNEXPECTED);
return NS_OK;
}
nsCOMPtr<nsIURI> docURI = doc->GetDocumentURI();
if (!docURI) {
mPromise->MaybeReject(NS_ERROR_UNEXPECTED);
return NS_OK;
}
nsCOMPtr<nsIPrincipal> principal = doc->NodePrincipal();
if (!principal) {
mPromise->MaybeReject(NS_ERROR_UNEXPECTED);
return NS_OK;
}
nsTArray<nsRefPtr<ServiceWorkerRegistration>> array;
nsRefPtr<ServiceWorkerManager::ServiceWorkerDomainInfo> domainInfo =
swm->GetDomainInfo(docURI);
if (!domainInfo) {
mPromise->MaybeResolve(array);
return NS_OK;
}
for (uint32_t i = 0; i < domainInfo->mOrderedScopes.Length(); ++i) {
NS_ConvertUTF8toUTF16 scope(domainInfo->mOrderedScopes[i]);
nsRefPtr<ServiceWorkerRegistration> swr =
new ServiceWorkerRegistration(mWindow, scope);
array.AppendElement(swr);
}
mPromise->MaybeResolve(array);
return NS_OK;
}
};
// If we return an error code here, the ServiceWorkerContainer will
// automatically reject the Promise.
NS_IMETHODIMP
ServiceWorkerManager::GetRegistrations(nsIDOMWindow* aWindow,
nsISupports** aPromise)
{
AssertIsOnMainThread();
MOZ_ASSERT(aWindow);
// XXXnsm Don't allow chrome callers for now, we don't support chrome
// ServiceWorkers.
MOZ_ASSERT(!nsContentUtils::IsCallerChrome());
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aWindow);
if (!window) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIGlobalObject> sgo = do_QueryInterface(window);
ErrorResult result;
nsRefPtr<Promise> promise = Promise::Create(sgo, result);
if (result.Failed()) {
return result.ErrorCode();
}
nsRefPtr<nsIRunnable> runnable =
new GetRegistrationsRunnable(window, promise);
promise.forget(aPromise);
return NS_DispatchToCurrentThread(runnable);
}
/*
* Implements the async aspects of the getRegistration algorithm.
*/
class GetRegistrationRunnable : public nsRunnable
{
nsCOMPtr<nsPIDOMWindow> mWindow;
nsRefPtr<Promise> mPromise;
nsString mDocumentURL;
public:
GetRegistrationRunnable(nsPIDOMWindow* aWindow, Promise* aPromise,
const nsAString& aDocumentURL)
: mWindow(aWindow), mPromise(aPromise), mDocumentURL(aDocumentURL)
{ }
NS_IMETHODIMP
Run()
{
nsRefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
nsIDocument* doc = mWindow->GetExtantDoc();
if (!doc) {
mPromise->MaybeReject(NS_ERROR_UNEXPECTED);
return NS_OK;
}
nsCOMPtr<nsIURI> docURI = doc->GetDocumentURI();
if (!docURI) {
mPromise->MaybeReject(NS_ERROR_UNEXPECTED);
return NS_OK;
}
nsCOMPtr<nsIURI> uri;
nsresult rv = NS_NewURI(getter_AddRefs(uri), mDocumentURL, nullptr, docURI);
if (NS_WARN_IF(NS_FAILED(rv))) {
mPromise->MaybeReject(rv);
return NS_OK;
}
nsCOMPtr<nsIPrincipal> principal = doc->NodePrincipal();
if (!principal) {
mPromise->MaybeReject(NS_ERROR_UNEXPECTED);
return NS_OK;
}
rv = principal->CheckMayLoad(uri, true /* report */,
false /* allowIfInheritsPrinciple */);
if (NS_FAILED(rv)) {
mPromise->MaybeReject(NS_ERROR_DOM_SECURITY_ERR);
return NS_OK;
}
nsRefPtr<ServiceWorkerRegistrationInfo> registration =
swm->GetServiceWorkerRegistrationInfo(uri);
if (!registration) {
mPromise->MaybeResolve(JS::UndefinedHandleValue);
return NS_OK;
}
NS_ConvertUTF8toUTF16 scope(registration->mScope);
nsRefPtr<ServiceWorkerRegistration> swr =
new ServiceWorkerRegistration(mWindow, scope);
mPromise->MaybeResolve(swr);
return NS_OK;
}
};
// If we return an error code here, the ServiceWorkerContainer will
// automatically reject the Promise.
NS_IMETHODIMP
ServiceWorkerManager::GetRegistration(nsIDOMWindow* aWindow,
const nsAString& aDocumentURL,
nsISupports** aPromise)
{
AssertIsOnMainThread();
MOZ_ASSERT(aWindow);
// XXXnsm Don't allow chrome callers for now, we don't support chrome
// ServiceWorkers.
MOZ_ASSERT(!nsContentUtils::IsCallerChrome());
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aWindow);
if (!window) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIGlobalObject> sgo = do_QueryInterface(window);
ErrorResult result;
nsRefPtr<Promise> promise = Promise::Create(sgo, result);
if (result.Failed()) {
return result.ErrorCode();
}
nsRefPtr<nsIRunnable> runnable =
new GetRegistrationRunnable(window, promise, aDocumentURL);
promise.forget(aPromise);
return NS_DispatchToCurrentThread(runnable);
}
class GetReadyPromiseRunnable : public nsRunnable
{
nsCOMPtr<nsPIDOMWindow> mWindow;
nsRefPtr<Promise> mPromise;
public:
GetReadyPromiseRunnable(nsPIDOMWindow* aWindow, Promise* aPromise)
: mWindow(aWindow), mPromise(aPromise)
{ }
NS_IMETHODIMP
Run()
{
nsRefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
nsIDocument* doc = mWindow->GetExtantDoc();
if (!doc) {
mPromise->MaybeReject(NS_ERROR_UNEXPECTED);
return NS_OK;
}
nsCOMPtr<nsIURI> docURI = doc->GetDocumentURI();
if (!docURI) {
mPromise->MaybeReject(NS_ERROR_UNEXPECTED);
return NS_OK;
}
if (!swm->CheckReadyPromise(mWindow, docURI, mPromise)) {
swm->StorePendingReadyPromise(mWindow, docURI, mPromise);
}
return NS_OK;
}
};
NS_IMETHODIMP
ServiceWorkerManager::GetReadyPromise(nsIDOMWindow* aWindow,
nsISupports** aPromise)
{
AssertIsOnMainThread();
MOZ_ASSERT(aWindow);
// XXXnsm Don't allow chrome callers for now, we don't support chrome
// ServiceWorkers.
MOZ_ASSERT(!nsContentUtils::IsCallerChrome());
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aWindow);
if (!window) {
return NS_ERROR_FAILURE;
}
MOZ_ASSERT(!mPendingReadyPromises.Contains(window));
nsCOMPtr<nsIGlobalObject> sgo = do_QueryInterface(window);
ErrorResult result;
nsRefPtr<Promise> promise = Promise::Create(sgo, result);
if (result.Failed()) {
return result.ErrorCode();
}
nsRefPtr<nsIRunnable> runnable =
new GetReadyPromiseRunnable(window, promise);
promise.forget(aPromise);
return NS_DispatchToCurrentThread(runnable);
}
NS_IMETHODIMP
ServiceWorkerManager::RemoveReadyPromise(nsIDOMWindow* aWindow)
{
AssertIsOnMainThread();
MOZ_ASSERT(aWindow);
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aWindow);
if (!window) {
return NS_ERROR_FAILURE;
}
mPendingReadyPromises.Remove(aWindow);
return NS_OK;
}
void
ServiceWorkerManager::StorePendingReadyPromise(nsPIDOMWindow* aWindow,
nsIURI* aURI,
Promise* aPromise)
{
PendingReadyPromise* data;
// We should not have 2 pending promises for the same window.
MOZ_ASSERT(!mPendingReadyPromises.Get(aWindow, &data));
data = new PendingReadyPromise(aURI, aPromise);
mPendingReadyPromises.Put(aWindow, data);
}
void
ServiceWorkerManager::CheckPendingReadyPromises()
{
mPendingReadyPromises.Enumerate(CheckPendingReadyPromisesEnumerator, this);
}
PLDHashOperator
ServiceWorkerManager::CheckPendingReadyPromisesEnumerator(
nsISupports* aSupports,
nsAutoPtr<PendingReadyPromise>& aData,
void* aPtr)
{
ServiceWorkerManager* aSwm = static_cast<ServiceWorkerManager*>(aPtr);
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aSupports);
if (aSwm->CheckReadyPromise(window, aData->mURI, aData->mPromise)) {
return PL_DHASH_REMOVE;
}
return PL_DHASH_NEXT;
}
bool
ServiceWorkerManager::CheckReadyPromise(nsPIDOMWindow* aWindow,
nsIURI* aURI, Promise* aPromise)
{
nsRefPtr<ServiceWorkerRegistrationInfo> registration =
GetServiceWorkerRegistrationInfo(aURI);
if (registration && registration->mCurrentWorker) {
NS_ConvertUTF8toUTF16 scope(registration->mScope);
nsRefPtr<ServiceWorkerRegistration> swr =
new ServiceWorkerRegistration(aWindow, scope);
aPromise->MaybeResolve(swr);
return true;
}
return false;
}
void
ServiceWorkerManager::RejectUpdatePromiseObservers(ServiceWorkerRegistrationInfo* aRegistration,
nsresult aRv)
{
AssertIsOnMainThread();
MOZ_ASSERT(aRegistration->HasUpdatePromise());
aRegistration->mUpdatePromise->RejectAllPromises(aRv);
aRegistration->mUpdatePromise = nullptr;
}
void
ServiceWorkerManager::RejectUpdatePromiseObservers(ServiceWorkerRegistrationInfo* aRegistration,
const ErrorEventInit& aErrorDesc)
{
AssertIsOnMainThread();
MOZ_ASSERT(aRegistration->HasUpdatePromise());
aRegistration->mUpdatePromise->RejectAllPromises(aErrorDesc);
aRegistration->mUpdatePromise = nullptr;
}
/*
* Update() does not return the Promise that the spec says it should. Callers
* may access the registration's (new) Promise after calling this method.
*/
NS_IMETHODIMP
ServiceWorkerManager::Update(ServiceWorkerRegistrationInfo* aRegistration,
nsPIDOMWindow* aWindow)
{
if (aRegistration->HasUpdatePromise()) {
NS_WARNING("Already had a UpdatePromise. Aborting that one!");
AbortCurrentUpdate(aRegistration);
}
if (aRegistration->mInstallingWorker) {
// FIXME(nsm): Terminate the worker. We still haven't figured out worker
// instance ownership when not associated with a window, so let's wait on
// this.
// FIXME(nsm): We should be setting the state on the actual worker
// instance.
// FIXME(nsm): Fire "statechange" on installing worker instance.
aRegistration->mInstallingWorker = nullptr;
InvalidateServiceWorkerRegistrationWorker(aRegistration,
WhichServiceWorker::INSTALLING_WORKER);
}
aRegistration->mUpdatePromise = new UpdatePromise();
// FIXME(nsm): Bug 931249. If we don't need to fetch & install, resolve
// promise and skip this.
// FIXME(nsm): Bug 931249. Force cache update if > 1 day.
aRegistration->mUpdateInstance =
new ServiceWorkerUpdateInstance(aRegistration, aWindow);
aRegistration->mUpdateInstance->Update();
return NS_OK;
}
void
ServiceWorkerManager::AbortCurrentUpdate(ServiceWorkerRegistrationInfo* aRegistration)
{
MOZ_ASSERT(aRegistration->HasUpdatePromise());
RejectUpdatePromiseObservers(aRegistration, NS_ERROR_DOM_ABORT_ERR);
MOZ_ASSERT(aRegistration->mUpdateInstance);
aRegistration->mUpdateInstance->Abort();
aRegistration->mUpdateInstance = nullptr;
}
NS_IMETHODIMP
ServiceWorkerManager::Unregister(nsIServiceWorkerUnregisterCallback* aCallback,
const nsAString& aScope)
{
AssertIsOnMainThread();
MOZ_ASSERT(aCallback);
nsCOMPtr<nsIURI> scopeURI;
nsresult rv = NS_NewURI(getter_AddRefs(scopeURI), aScope, nullptr, nullptr);
if (NS_WARN_IF(NS_FAILED(rv))) {
return NS_ERROR_DOM_SECURITY_ERR;
}
/*
* Implements the async aspects of the unregister algorithm.
*/
class UnregisterRunnable : public nsRunnable
{
nsCOMPtr<nsIServiceWorkerUnregisterCallback> mCallback;
nsCOMPtr<nsIURI> mScopeURI;
public:
UnregisterRunnable(nsIServiceWorkerUnregisterCallback* aCallback,
nsIURI* aScopeURI)
: mCallback(aCallback), mScopeURI(aScopeURI)
{
AssertIsOnMainThread();
}
NS_IMETHODIMP
Run()
{
AssertIsOnMainThread();
nsRefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
nsRefPtr<ServiceWorkerManager::ServiceWorkerDomainInfo> domainInfo =
swm->GetDomainInfo(mScopeURI);
MOZ_ASSERT(domainInfo);
nsCString spec;
nsresult rv = mScopeURI->GetSpecIgnoringRef(spec);
if (NS_WARN_IF(NS_FAILED(rv))) {
return mCallback->UnregisterFailed();
}
nsRefPtr<ServiceWorkerRegistrationInfo> registration;
if (!domainInfo->mServiceWorkerRegistrationInfos.Get(spec,
getter_AddRefs(registration))) {
return mCallback->UnregisterSucceeded(false);
}
MOZ_ASSERT(registration);
registration->mPendingUninstall = true;
rv = mCallback->UnregisterSucceeded(true);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// The "Wait until no document is using registration" can actually be
// handled by [[HandleDocumentUnload]] in Bug 1041340, so we simply check
// if the document is currently in use here.
if (!registration->IsControllingDocuments()) {
if (!registration->mPendingUninstall) {
return NS_OK;
}
registration->Clear();
domainInfo->RemoveRegistration(registration);
}
return NS_OK;
}
};
nsRefPtr<nsIRunnable> unregisterRunnable =
new UnregisterRunnable(aCallback, scopeURI);
return NS_DispatchToCurrentThread(unregisterRunnable);
}
/* static */
already_AddRefed<ServiceWorkerManager>
ServiceWorkerManager::GetInstance()
{
nsCOMPtr<nsIServiceWorkerManager> swm = mozilla::services::GetServiceWorkerManager();
nsRefPtr<ServiceWorkerManager> concrete = do_QueryObject(swm);
return concrete.forget();
}
void
ServiceWorkerManager::ResolveRegisterPromises(ServiceWorkerRegistrationInfo* aRegistration,
const nsACString& aWorkerScriptSpec)
{
AssertIsOnMainThread();
MOZ_ASSERT(aRegistration->HasUpdatePromise());
if (aRegistration->mUpdatePromise->IsRejected()) {
aRegistration->mUpdatePromise = nullptr;
return;
}
aRegistration->mUpdatePromise->ResolveAllPromises(aWorkerScriptSpec,
aRegistration->mScope);
aRegistration->mUpdatePromise = nullptr;
}
// Must NS_Free() aString
void
ServiceWorkerManager::FinishFetch(ServiceWorkerRegistrationInfo* aRegistration,
nsPIDOMWindow* aWindow)
{
AssertIsOnMainThread();
MOZ_ASSERT(aRegistration->HasUpdatePromise());
MOZ_ASSERT(aRegistration->mUpdateInstance);
aRegistration->mUpdateInstance = nullptr;
if (aRegistration->mUpdatePromise->IsRejected()) {
aRegistration->mUpdatePromise = nullptr;
return;
}
// We have skipped Steps 3-8.3 of the Update algorithm here!
nsRefPtr<ServiceWorker> worker;
nsresult rv = CreateServiceWorkerForWindow(aWindow,
aRegistration->mScriptSpec,
aRegistration->mScope,
getter_AddRefs(worker));
if (NS_WARN_IF(NS_FAILED(rv))) {
RejectUpdatePromiseObservers(aRegistration, rv);
return;
}
ResolveRegisterPromises(aRegistration, aRegistration->mScriptSpec);
nsRefPtr<ServiceWorkerInfo> info = new ServiceWorkerInfo(aRegistration->mScriptSpec);
Install(aRegistration, info);
}
void
ServiceWorkerManager::HandleError(JSContext* aCx,
const nsACString& aScope,
const nsAString& aWorkerURL,
nsString aMessage,
nsString aFilename,
nsString aLine,
uint32_t aLineNumber,
uint32_t aColumnNumber,
uint32_t aFlags)
{
AssertIsOnMainThread();
nsCOMPtr<nsIURI> uri;
nsresult rv = NS_NewURI(getter_AddRefs(uri), aScope, nullptr, nullptr);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
nsRefPtr<ServiceWorkerDomainInfo> domainInfo = GetDomainInfo(uri);
if (!domainInfo) {
return;
}
nsCString scope;
scope.Assign(aScope);
nsRefPtr<ServiceWorkerRegistrationInfo> registration = domainInfo->GetRegistration(scope);
MOZ_ASSERT(registration);
RootedDictionary<ErrorEventInit> init(aCx);
init.mMessage = aMessage;
init.mFilename = aFilename;
init.mLineno = aLineNumber;
init.mColno = aColumnNumber;
// If the worker was the one undergoing registration, we reject the promises,
// otherwise we fire events on the ServiceWorker instances.
// If there is an update in progress and the worker that errored is the same one
// that is being updated, it is a sufficient test for 'this worker is being
// registered'.
// FIXME(nsm): Except the case where an update is found for a worker, in
// which case we'll need some other association than simply the URL.
if (registration->mUpdateInstance &&
registration->mUpdateInstance->GetScriptSpec().Equals(NS_ConvertUTF16toUTF8(aWorkerURL))) {
RejectUpdatePromiseObservers(registration, init);
// We don't need to abort here since the worker has already run.
registration->mUpdateInstance = nullptr;
} else {
// FIXME(nsm): Bug 983497 Fire 'error' on ServiceWorkerContainers.
}
}
class FinishInstallRunnable MOZ_FINAL : public nsRunnable
{
nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo> mRegistration;
public:
explicit FinishInstallRunnable(
const nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo>& aRegistration)
: mRegistration(aRegistration)
{
MOZ_ASSERT(!NS_IsMainThread());
}
NS_IMETHOD
Run() MOZ_OVERRIDE
{
AssertIsOnMainThread();
nsRefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
swm->FinishInstall(mRegistration.get());
return NS_OK;
}
};
class FinishActivationRunnable : public nsRunnable
{
nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo> mRegistration;
public:
explicit FinishActivationRunnable(const nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo>& aRegistration)
: mRegistration(aRegistration)
{
MOZ_ASSERT(!NS_IsMainThread());
}
NS_IMETHODIMP
Run()
{
AssertIsOnMainThread();
// FinishActivate takes ownership of the passed info.
nsRefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
swm->FinishActivate(mRegistration.get());
return NS_OK;
}
};
class CancelServiceWorkerInstallationRunnable MOZ_FINAL : public nsRunnable
{
nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo> mRegistration;
public:
explicit CancelServiceWorkerInstallationRunnable(
const nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo>& aRegistration)
: mRegistration(aRegistration)
{
}
NS_IMETHOD
Run() MOZ_OVERRIDE
{
AssertIsOnMainThread();
// FIXME(nsm): Change installing worker state to redundant.
// FIXME(nsm): Fire statechange.
mRegistration->mInstallingWorker = nullptr;
nsRefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
swm->InvalidateServiceWorkerRegistrationWorker(mRegistration,
WhichServiceWorker::INSTALLING_WORKER);
return NS_OK;
}
};
/*
* Used to handle InstallEvent::waitUntil() and proceed with installation.
*/
class FinishInstallHandler MOZ_FINAL : public PromiseNativeHandler
{
nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo> mRegistration;
virtual
~FinishInstallHandler()
{ }
public:
explicit FinishInstallHandler(
const nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo>& aRegistration)
: mRegistration(aRegistration)
{
MOZ_ASSERT(!NS_IsMainThread());
}
void
ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) MOZ_OVERRIDE
{
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
workerPrivate->AssertIsOnWorkerThread();
nsRefPtr<FinishInstallRunnable> r = new FinishInstallRunnable(mRegistration);
NS_DispatchToMainThread(r);
}
void
RejectedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) MOZ_OVERRIDE
{
nsRefPtr<CancelServiceWorkerInstallationRunnable> r =
new CancelServiceWorkerInstallationRunnable(mRegistration);
NS_DispatchToMainThread(r);
}
};
class FinishActivateHandler : public PromiseNativeHandler
{
nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo> mRegistration;
public:
explicit FinishActivateHandler(const nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo>& aRegistration)
: mRegistration(aRegistration)
{
MOZ_ASSERT(!NS_IsMainThread());
}
virtual
~FinishActivateHandler()
{ }
void
ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) MOZ_OVERRIDE
{
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
workerPrivate->AssertIsOnWorkerThread();
nsRefPtr<FinishActivationRunnable> r = new FinishActivationRunnable(mRegistration);
NS_DispatchToMainThread(r);
}
void
RejectedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) MOZ_OVERRIDE
{
// FIXME(nsm). Spec is undefined.
}
};
/*
* Fires 'install' event on the ServiceWorkerGlobalScope. Modifies busy count
* since it fires the event. This is ok since there can't be nested
* ServiceWorkers, so the parent thread -> worker thread requirement for
* runnables is satisfied.
*/
class InstallEventRunnable MOZ_FINAL : public WorkerRunnable
{
nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo> mRegistration;
nsCString mScope;
public:
InstallEventRunnable(
WorkerPrivate* aWorkerPrivate,
const nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo>& aRegistration)
: WorkerRunnable(aWorkerPrivate, WorkerThreadModifyBusyCount),
mRegistration(aRegistration),
mScope(aRegistration.get()->mScope) // copied for access on worker thread.
{
AssertIsOnMainThread();
MOZ_ASSERT(aWorkerPrivate);
}
bool
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
{
MOZ_ASSERT(aWorkerPrivate);
return DispatchInstallEvent(aCx, aWorkerPrivate);
}
private:
bool
DispatchInstallEvent(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
{
aWorkerPrivate->AssertIsOnWorkerThread();
MOZ_ASSERT(aWorkerPrivate->IsServiceWorker());
InstallEventInit init;
init.mBubbles = false;
init.mCancelable = true;
// FIXME(nsm): Bug 982787 pass previous active worker.
nsRefPtr<EventTarget> target = aWorkerPrivate->GlobalScope();
nsRefPtr<InstallEvent> event =
InstallEvent::Constructor(target, NS_LITERAL_STRING("install"), init);
event->SetTrusted(true);
nsRefPtr<Promise> waitUntilPromise;
nsresult rv = target->DispatchDOMEvent(nullptr, event, nullptr, nullptr);
nsCOMPtr<nsIGlobalObject> sgo = aWorkerPrivate->GlobalScope();
if (NS_SUCCEEDED(rv)) {
waitUntilPromise = event->GetPromise();
if (!waitUntilPromise) {
ErrorResult rv;
waitUntilPromise =
Promise::Resolve(sgo,
aCx, JS::UndefinedHandleValue, rv);
}
} else {
ErrorResult rv;
// Continue with a canceled install.
waitUntilPromise = Promise::Reject(sgo, aCx,
JS::UndefinedHandleValue, rv);
}
nsRefPtr<FinishInstallHandler> handler =
new FinishInstallHandler(mRegistration);
waitUntilPromise->AppendNativeHandler(handler);
return true;
}
};
class ActivateEventRunnable : public WorkerRunnable
{
nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo> mRegistration;
public:
ActivateEventRunnable(WorkerPrivate* aWorkerPrivate,
const nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo>& aRegistration)
: WorkerRunnable(aWorkerPrivate, WorkerThreadModifyBusyCount),
mRegistration(aRegistration)
{
MOZ_ASSERT(aWorkerPrivate);
}
bool
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
{
MOZ_ASSERT(aWorkerPrivate);
return DispatchActivateEvent(aCx, aWorkerPrivate);
}
private:
bool
DispatchActivateEvent(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
{
MOZ_ASSERT(aWorkerPrivate->IsServiceWorker());
nsRefPtr<EventTarget> target = do_QueryObject(aWorkerPrivate->GlobalScope());
// FIXME(nsm): Set activeWorker to the correct thing.
EventInit init;
init.mBubbles = false;
init.mCancelable = true;
nsRefPtr<InstallPhaseEvent> event =
InstallPhaseEvent::Constructor(target, NS_LITERAL_STRING("activate"), init);
event->SetTrusted(true);
nsRefPtr<Promise> waitUntilPromise;
nsresult rv = target->DispatchDOMEvent(nullptr, event, nullptr, nullptr);
if (NS_SUCCEEDED(rv)) {
waitUntilPromise = event->GetPromise();
if (!waitUntilPromise) {
ErrorResult rv;
nsCOMPtr<nsIGlobalObject> global =
do_QueryObject(aWorkerPrivate->GlobalScope());
waitUntilPromise =
Promise::Resolve(global,
aCx, JS::UndefinedHandleValue, rv);
}
} else {
ErrorResult rv;
nsCOMPtr<nsIGlobalObject> global =
do_QueryObject(aWorkerPrivate->GlobalScope());
// Continue with a canceled install.
waitUntilPromise = Promise::Reject(global, aCx,
JS::UndefinedHandleValue, rv);
}
nsRefPtr<FinishActivateHandler> handler = new FinishActivateHandler(mRegistration);
waitUntilPromise->AppendNativeHandler(handler);
return true;
}
};
void
ServiceWorkerManager::Install(ServiceWorkerRegistrationInfo* aRegistration,
ServiceWorkerInfo* aServiceWorkerInfo)
{
AssertIsOnMainThread();
aRegistration->mInstallingWorker = aServiceWorkerInfo;
MOZ_ASSERT(aRegistration->mInstallingWorker);
InvalidateServiceWorkerRegistrationWorker(aRegistration,
WhichServiceWorker::INSTALLING_WORKER);
nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo> handle(
new nsMainThreadPtrHolder<ServiceWorkerRegistrationInfo>(aRegistration));
nsRefPtr<ServiceWorker> serviceWorker;
nsresult rv =
CreateServiceWorker(aServiceWorkerInfo->GetScriptSpec(),
aRegistration->mScope,
getter_AddRefs(serviceWorker));
if (NS_WARN_IF(NS_FAILED(rv))) {
aRegistration->mInstallingWorker = nullptr;
// We don't need to invalidate here since the upper one will have done it.
return;
}
nsRefPtr<InstallEventRunnable> r =
new InstallEventRunnable(serviceWorker->GetWorkerPrivate(), handle);
AutoSafeJSContext cx;
r->Dispatch(cx);
// When this function exits, although we've lost references to the ServiceWorker,
// which means the underlying WorkerPrivate has no references, the worker
// will stay alive due to the modified busy count until the install event has
// been dispatched.
// NOTE: The worker spec does not require Promises to keep a worker alive, so
// the waitUntil() construct by itself will not keep a worker alive beyond
// the event dispatch. On the other hand, networking, IDB and so on do keep
// the worker alive, so the waitUntil() is only relevant if the Promise is
// gated on those actions. I (nsm) am not sure if it is worth requiring
// a special spec mention saying the install event should keep the worker
// alive indefinitely purely on the basis of calling waitUntil(), since
// a wait is likely to be required only when performing networking or storage
// transactions in the first place.
FireEventOnServiceWorkerRegistrations(aRegistration,
NS_LITERAL_STRING("updatefound"));
}
class ActivationRunnable : public nsRunnable
{
nsRefPtr<ServiceWorkerRegistrationInfo> mRegistration;
public:
explicit ActivationRunnable(ServiceWorkerRegistrationInfo* aRegistration)
: mRegistration(aRegistration)
{
}
NS_IMETHODIMP
Run() MOZ_OVERRIDE
{
if (mRegistration->mCurrentWorker) {
// FIXME(nsm). Steps 3.1-3.4 of the algorithm.
}
mRegistration->mCurrentWorker = mRegistration->mWaitingWorker.forget();
nsRefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
swm->InvalidateServiceWorkerRegistrationWorker(mRegistration,
WhichServiceWorker::ACTIVE_WORKER | WhichServiceWorker::WAITING_WORKER);
if (!mRegistration->mCurrentWorker) {
// FIXME(nsm): Just got unregistered!
return NS_OK;
}
swm->CheckPendingReadyPromises();
// FIXME(nsm): Steps 7 of the algorithm.
swm->FireEventOnServiceWorkerRegistrations(mRegistration,
NS_LITERAL_STRING("controllerchange"));
MOZ_ASSERT(mRegistration->mCurrentWorker);
nsRefPtr<ServiceWorker> serviceWorker;
nsresult rv =
swm->CreateServiceWorker(mRegistration->mCurrentWorker->GetScriptSpec(),
mRegistration->mScope,
getter_AddRefs(serviceWorker));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo> handle(
new nsMainThreadPtrHolder<ServiceWorkerRegistrationInfo>(mRegistration));
nsRefPtr<ActivateEventRunnable> r =
new ActivateEventRunnable(serviceWorker->GetWorkerPrivate(), handle);
AutoSafeJSContext cx;
if (!r->Dispatch(cx)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
};
void
ServiceWorkerManager::FinishInstall(ServiceWorkerRegistrationInfo* aRegistration)
{
AssertIsOnMainThread();
if (aRegistration->mWaitingWorker) {
// FIXME(nsm): Actually update the state of active ServiceWorker instances.
}
if (!aRegistration->mInstallingWorker) {
// It is possible that while this run of [[Install]] was waiting for
// the worker to handle the install event, some page called register() with
// a different script leading to [[Update]] terminating the
// installingWorker and setting it to null. The FinishInstallRunnable may
// already have been dispatched, hence the check.
return;
}
aRegistration->mWaitingWorker = aRegistration->mInstallingWorker.forget();
MOZ_ASSERT(aRegistration->mWaitingWorker);
InvalidateServiceWorkerRegistrationWorker(aRegistration,
WhichServiceWorker::WAITING_WORKER | WhichServiceWorker::INSTALLING_WORKER);
// FIXME(nsm): Actually update state of active ServiceWorker instances to
// installed.
// FIXME(nsm): Fire statechange on the instances.
// FIXME(nsm): Handle replace().
if (!aRegistration->IsControllingDocuments()) {
nsRefPtr<ActivationRunnable> r =
new ActivationRunnable(aRegistration);
nsresult rv = NS_DispatchToMainThread(r);
if (NS_WARN_IF(NS_FAILED(rv))) {
// FIXME(nsm): Handle error.
// How likely is this to happen and can we really do anything about it?
}
}
}
void
ServiceWorkerManager::FinishActivate(ServiceWorkerRegistrationInfo* aRegistration)
{
// FIXME(nsm): Set aRegistration->mCurrentWorker state to activated.
// Fire statechange.
}
NS_IMETHODIMP
ServiceWorkerManager::CreateServiceWorkerForWindow(nsPIDOMWindow* aWindow,
const nsACString& aScriptSpec,
const nsACString& aScope,
ServiceWorker** aServiceWorker)
{
AssertIsOnMainThread();
MOZ_ASSERT(aWindow);
RuntimeService* rs = RuntimeService::GetOrCreateService();
nsRefPtr<ServiceWorker> serviceWorker;
nsCOMPtr<nsIGlobalObject> sgo = do_QueryInterface(aWindow);
AutoSafeJSContext cx;
JS::Rooted<JSObject*> jsGlobal(cx, sgo->GetGlobalJSObject());
JSAutoCompartment ac(cx, jsGlobal);
GlobalObject global(cx, jsGlobal);
nsresult rv = rs->CreateServiceWorker(global,
NS_ConvertUTF8toUTF16(aScriptSpec),
aScope,
getter_AddRefs(serviceWorker));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
serviceWorker.forget(aServiceWorker);
return rv;
}
already_AddRefed<ServiceWorkerRegistrationInfo>
ServiceWorkerManager::GetServiceWorkerRegistrationInfo(nsPIDOMWindow* aWindow)
{
nsCOMPtr<nsIDocument> document = aWindow->GetExtantDoc();
return GetServiceWorkerRegistrationInfo(document);
}
already_AddRefed<ServiceWorkerRegistrationInfo>
ServiceWorkerManager::GetServiceWorkerRegistrationInfo(nsIDocument* aDoc)
{
nsCOMPtr<nsIURI> documentURI = aDoc->GetDocumentURI();
return GetServiceWorkerRegistrationInfo(documentURI);
}
already_AddRefed<ServiceWorkerRegistrationInfo>
ServiceWorkerManager::GetServiceWorkerRegistrationInfo(nsIURI* aURI)
{
nsRefPtr<ServiceWorkerDomainInfo> domainInfo = GetDomainInfo(aURI);
if (!domainInfo) {
return nullptr;
}
nsCString spec;
nsresult rv = aURI->GetSpec(spec);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
nsCString scope = FindScopeForPath(domainInfo->mOrderedScopes, spec);
if (scope.IsEmpty()) {
return nullptr;
}
nsRefPtr<ServiceWorkerRegistrationInfo> registration;
domainInfo->mServiceWorkerRegistrationInfos.Get(scope, getter_AddRefs(registration));
// ordered scopes and registrations better be in sync.
MOZ_ASSERT(registration);
if (registration->mPendingUninstall) {
return nullptr;
}
return registration.forget();
}
/* static */ void
ServiceWorkerManager::AddScope(nsTArray<nsCString>& aList, const nsACString& aScope)
{
for (uint32_t i = 0; i < aList.Length(); ++i) {
const nsCString& current = aList[i];
// Perfect match!
if (aScope.Equals(current)) {
return;
}
// Sort by length, with longest match first.
// /foo/bar should be before /foo/
// Similarly /foo/b is between the two.
if (StringBeginsWith(aScope, current)) {
aList.InsertElementAt(i, aScope);
return;
}
}
aList.AppendElement(aScope);
}
/* static */ nsCString
ServiceWorkerManager::FindScopeForPath(nsTArray<nsCString>& aList, const nsACString& aPath)
{
nsCString match;
for (uint32_t i = 0; i < aList.Length(); ++i) {
const nsCString& current = aList[i];
if (StringBeginsWith(aPath, current)) {
match = current;
break;
}
}
return match;
}
/* static */ void
ServiceWorkerManager::RemoveScope(nsTArray<nsCString>& aList, const nsACString& aScope)
{
aList.RemoveElement(aScope);
}
already_AddRefed<ServiceWorkerManager::ServiceWorkerDomainInfo>
ServiceWorkerManager::GetDomainInfo(nsIDocument* aDoc)
{
AssertIsOnMainThread();
MOZ_ASSERT(aDoc);
nsCOMPtr<nsIURI> documentURI = aDoc->GetDocumentURI();
return GetDomainInfo(documentURI);
}
already_AddRefed<ServiceWorkerManager::ServiceWorkerDomainInfo>
ServiceWorkerManager::GetDomainInfo(nsIURI* aURI)
{
AssertIsOnMainThread();
MOZ_ASSERT(aURI);
nsCString domain;
nsresult rv = aURI->GetHost(domain);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
nsRefPtr<ServiceWorkerDomainInfo> domainInfo;
mDomainMap.Get(domain, getter_AddRefs(domainInfo));
return domainInfo.forget();
}
already_AddRefed<ServiceWorkerManager::ServiceWorkerDomainInfo>
ServiceWorkerManager::GetDomainInfo(const nsCString& aURL)
{
AssertIsOnMainThread();
nsCOMPtr<nsIURI> uri;
nsresult rv = NS_NewURI(getter_AddRefs(uri), aURL, nullptr, nullptr);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
return GetDomainInfo(uri);
}
void
ServiceWorkerManager::MaybeStartControlling(nsIDocument* aDoc)
{
AssertIsOnMainThread();
if (!Preferences::GetBool("dom.serviceWorkers.enabled")) {
return;
}
nsRefPtr<ServiceWorkerDomainInfo> domainInfo = GetDomainInfo(aDoc);
if (!domainInfo) {
return;
}
nsRefPtr<ServiceWorkerRegistrationInfo> registration =
GetServiceWorkerRegistrationInfo(aDoc);
if (registration && registration->mCurrentWorker) {
MOZ_ASSERT(!domainInfo->mControlledDocuments.Contains(aDoc));
registration->StartControllingADocument();
// Use the already_AddRefed<> form of Put to avoid the addref-deref since
// we don't need the registration pointer in this function anymore.
domainInfo->mControlledDocuments.Put(aDoc, registration.forget());
}
}
void
ServiceWorkerManager::MaybeStopControlling(nsIDocument* aDoc)
{
MOZ_ASSERT(aDoc);
if (!Preferences::GetBool("dom.serviceWorkers.enabled")) {
return;
}
nsRefPtr<ServiceWorkerDomainInfo> domainInfo = GetDomainInfo(aDoc);
if (!domainInfo) {
return;
}
nsRefPtr<ServiceWorkerRegistrationInfo> registration;
domainInfo->mControlledDocuments.Remove(aDoc, getter_AddRefs(registration));
// A document which was uncontrolled does not maintain that state itself, so
// it will always call MaybeStopControlling() even if there isn't an
// associated registration. So this check is required.
if (registration) {
registration->StopControllingADocument();
}
}
NS_IMETHODIMP
ServiceWorkerManager::GetScopeForUrl(const nsAString& aUrl, nsAString& aScope)
{
nsCOMPtr<nsIURI> uri;
nsresult rv = NS_NewURI(getter_AddRefs(uri), aUrl, nullptr, nullptr);
if (NS_WARN_IF(NS_FAILED(rv))) {
return NS_ERROR_FAILURE;
}
nsRefPtr<ServiceWorkerRegistrationInfo> r = GetServiceWorkerRegistrationInfo(uri);
if (!r) {
return NS_ERROR_FAILURE;
}
aScope = NS_ConvertUTF8toUTF16(r->mScope);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerManager::AddRegistrationEventListener(nsIURI* aDocumentURI, nsIDOMEventTarget* aListener)
{
MOZ_ASSERT(aDocumentURI);
AssertIsOnMainThread();
nsRefPtr<ServiceWorkerDomainInfo> domainInfo = GetDomainInfo(aDocumentURI);
if (!domainInfo) {
nsCString domain;
nsresult rv = aDocumentURI->GetHost(domain);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
domainInfo = new ServiceWorkerDomainInfo;
mDomainMap.Put(domain, domainInfo);
}
MOZ_ASSERT(domainInfo);
// TODO: this is very very bad:
ServiceWorkerRegistration* registration = static_cast<ServiceWorkerRegistration*>(aListener);
MOZ_ASSERT(!domainInfo->mServiceWorkerRegistrations.Contains(registration));
domainInfo->mServiceWorkerRegistrations.AppendElement(registration);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerManager::RemoveRegistrationEventListener(nsIURI* aDocumentURI, nsIDOMEventTarget* aListener)
{
AssertIsOnMainThread();
MOZ_ASSERT(aDocumentURI);
nsRefPtr<ServiceWorkerDomainInfo> domainInfo = GetDomainInfo(aDocumentURI);
if (!domainInfo) {
return NS_OK;
}
ServiceWorkerRegistration* registration = static_cast<ServiceWorkerRegistration*>(aListener);
MOZ_ASSERT(domainInfo->mServiceWorkerRegistrations.Contains(registration));
domainInfo->mServiceWorkerRegistrations.RemoveElement(registration);
return NS_OK;
}
void
ServiceWorkerManager::FireEventOnServiceWorkerRegistrations(
ServiceWorkerRegistrationInfo* aRegistration,
const nsAString& aName)
{
AssertIsOnMainThread();
nsRefPtr<ServiceWorkerDomainInfo> domainInfo =
GetDomainInfo(aRegistration->mScriptSpec);
if (domainInfo) {
nsTObserverArray<ServiceWorkerRegistration*>::ForwardIterator it(domainInfo->mServiceWorkerRegistrations);
while (it.HasMore()) {
nsRefPtr<ServiceWorkerRegistration> target = it.GetNext();
nsIURI* targetURI = target->GetDocumentURI();
if (!targetURI) {
NS_WARNING("Controlled domain cannot have page with null URI!");
continue;
}
nsCString path;
nsresult rv = targetURI->GetSpec(path);
if (NS_WARN_IF(NS_FAILED(rv))) {
continue;
}
nsCString scope = FindScopeForPath(domainInfo->mOrderedScopes, path);
if (scope.IsEmpty() ||
!scope.Equals(aRegistration->mScope)) {
continue;
}
target->DispatchTrustedEvent(aName);
}
}
}
/*
* This is used for installing, waiting and active.
*/
NS_IMETHODIMP
ServiceWorkerManager::GetServiceWorkerForScope(nsIDOMWindow* aWindow,
const nsAString& aScope,
WhichServiceWorker aWhichWorker,
nsISupports** aServiceWorker)
{
AssertIsOnMainThread();
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aWindow);
if (!window) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
MOZ_ASSERT(doc);
///////////////////////////////////////////
// Security check
nsCString scope = NS_ConvertUTF16toUTF8(aScope);
nsCOMPtr<nsIURI> scopeURI;
// We pass nullptr as the base URI since scopes obtained from
// ServiceWorkerRegistrations MUST be fully qualified URIs.
nsresult rv = NS_NewURI(getter_AddRefs(scopeURI), scope, nullptr, nullptr);
if (NS_WARN_IF(NS_FAILED(rv))) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIPrincipal> documentPrincipal = doc->NodePrincipal();
rv = documentPrincipal->CheckMayLoad(scopeURI, true /* report */,
false /* allowIfInheritsPrinciple */);
if (NS_WARN_IF(NS_FAILED(rv))) {
return NS_ERROR_DOM_SECURITY_ERR;
}
////////////////////////////////////////////
nsRefPtr<ServiceWorkerDomainInfo> domainInfo = GetDomainInfo(scope);
if (!domainInfo) {
return NS_ERROR_FAILURE;
}
nsRefPtr<ServiceWorkerRegistrationInfo> registration =
domainInfo->GetRegistration(scope);
if (!registration) {
return NS_ERROR_FAILURE;
}
nsRefPtr<ServiceWorkerInfo> info;
if (aWhichWorker == WhichServiceWorker::INSTALLING_WORKER) {
info = registration->mInstallingWorker;
} else if (aWhichWorker == WhichServiceWorker::WAITING_WORKER) {
info = registration->mWaitingWorker;
} else if (aWhichWorker == WhichServiceWorker::ACTIVE_WORKER) {
info = registration->mCurrentWorker;
} else {
MOZ_CRASH("Invalid worker type");
}
if (!info) {
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
nsRefPtr<ServiceWorker> serviceWorker;
rv = CreateServiceWorkerForWindow(window,
info->GetScriptSpec(),
registration->mScope,
getter_AddRefs(serviceWorker));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
serviceWorker.forget(aServiceWorker);
return NS_OK;
}
/*
* The .controller is for the registration associated with the document when
* the document was loaded.
*/
NS_IMETHODIMP
ServiceWorkerManager::GetDocumentController(nsIDOMWindow* aWindow, nsISupports** aServiceWorker)
{
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aWindow);
MOZ_ASSERT(window);
if (!window || !window->GetExtantDoc()) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
nsRefPtr<ServiceWorkerDomainInfo> domainInfo = GetDomainInfo(doc);
if (!domainInfo) {
return NS_ERROR_FAILURE;
}
nsRefPtr<ServiceWorkerRegistrationInfo> registration;
if (!domainInfo->mControlledDocuments.Get(doc, getter_AddRefs(registration))) {
return NS_ERROR_FAILURE;
}
// If the document is controlled, the current worker MUST be non-null.
MOZ_ASSERT(registration->mCurrentWorker);
nsRefPtr<ServiceWorker> serviceWorker;
nsresult rv = CreateServiceWorkerForWindow(window,
registration->mCurrentWorker->GetScriptSpec(),
registration->mScope,
getter_AddRefs(serviceWorker));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
serviceWorker.forget(aServiceWorker);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerManager::GetInstalling(nsIDOMWindow* aWindow,
const nsAString& aScope,
nsISupports** aServiceWorker)
{
return GetServiceWorkerForScope(aWindow, aScope,
WhichServiceWorker::INSTALLING_WORKER,
aServiceWorker);
}
NS_IMETHODIMP
ServiceWorkerManager::GetWaiting(nsIDOMWindow* aWindow,
const nsAString& aScope,
nsISupports** aServiceWorker)
{
return GetServiceWorkerForScope(aWindow, aScope,
WhichServiceWorker::WAITING_WORKER,
aServiceWorker);
}
NS_IMETHODIMP
ServiceWorkerManager::GetActive(nsIDOMWindow* aWindow,
const nsAString& aScope,
nsISupports** aServiceWorker)
{
return GetServiceWorkerForScope(aWindow, aScope,
WhichServiceWorker::ACTIVE_WORKER,
aServiceWorker);
}
NS_IMETHODIMP
ServiceWorkerManager::CreateServiceWorker(const nsACString& aScriptSpec,
const nsACString& aScope,
ServiceWorker** aServiceWorker)
{
AssertIsOnMainThread();
WorkerPrivate::LoadInfo info;
nsresult rv = NS_NewURI(getter_AddRefs(info.mBaseURI), aScriptSpec, nullptr, nullptr);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
info.mResolvedScriptURI = info.mBaseURI;
rv = info.mBaseURI->GetHost(info.mDomain);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// FIXME(nsm): Create correct principal based on app-ness.
// Would it make sense to store the nsIPrincipal of the first register() in
// the ServiceWorkerRegistrationInfo and use that?
nsIScriptSecurityManager* ssm = nsContentUtils::GetSecurityManager();
rv = ssm->GetNoAppCodebasePrincipal(info.mBaseURI, getter_AddRefs(info.mPrincipal));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
AutoSafeJSContext cx;
nsRefPtr<ServiceWorker> serviceWorker;
RuntimeService* rs = RuntimeService::GetService();
if (!rs) {
return NS_ERROR_FAILURE;
}
rv = rs->CreateServiceWorkerFromLoadInfo(cx, info, NS_ConvertUTF8toUTF16(aScriptSpec), aScope,
getter_AddRefs(serviceWorker));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
serviceWorker.forget(aServiceWorker);
return NS_OK;
}
void
ServiceWorkerManager::InvalidateServiceWorkerRegistrationWorker(ServiceWorkerRegistrationInfo* aRegistration,
WhichServiceWorker aWhichOnes)
{
AssertIsOnMainThread();
nsRefPtr<ServiceWorkerDomainInfo> domainInfo =
GetDomainInfo(aRegistration->mScriptSpec);
if (domainInfo) {
nsTObserverArray<ServiceWorkerRegistration*>::ForwardIterator it(domainInfo->mServiceWorkerRegistrations);
while (it.HasMore()) {
nsRefPtr<ServiceWorkerRegistration> target = it.GetNext();
nsIURI* targetURI = target->GetDocumentURI();
nsCString path;
nsresult rv = targetURI->GetSpec(path);
if (NS_WARN_IF(NS_FAILED(rv))) {
continue;
}
nsCString scope = FindScopeForPath(domainInfo->mOrderedScopes, path);
if (scope.IsEmpty() ||
!scope.Equals(aRegistration->mScope)) {
continue;
}
target->InvalidateWorkerReference(aWhichOnes);
}
}
}
namespace {
class MOZ_STACK_CLASS FilterRegistrationData
{
public:
FilterRegistrationData(nsTArray<uint64_t>* aDocuments,
ServiceWorkerRegistrationInfo* aRegistration)
: mDocuments(aDocuments),
mRegistration(aRegistration)
{
}
nsTArray<uint64_t>* mDocuments;
nsRefPtr<ServiceWorkerRegistrationInfo> mRegistration;
};
static PLDHashOperator
EnumControlledDocuments(nsISupports* aKey,
ServiceWorkerRegistrationInfo* aRegistration,
void* aData)
{
FilterRegistrationData* data = static_cast<FilterRegistrationData*>(aData);
if (data->mRegistration != aRegistration) {
return PL_DHASH_NEXT;
}
nsCOMPtr<nsIDocument> document = do_QueryInterface(aKey);
if (!document || !document->GetInnerWindow()) {
return PL_DHASH_NEXT;
}
data->mDocuments->AppendElement(document->GetInnerWindow()->WindowID());
return PL_DHASH_NEXT;
}
} // anonymous namespace
void
ServiceWorkerManager::GetServicedClients(const nsCString& aScope,
nsTArray<uint64_t>* aControlledDocuments)
{
nsRefPtr<ServiceWorkerDomainInfo> domainInfo = GetDomainInfo(aScope);
nsRefPtr<ServiceWorkerRegistrationInfo> registration =
domainInfo->GetRegistration(aScope);
if (!registration) {
// The registration was removed, leave the array empty.
return;
}
FilterRegistrationData data(aControlledDocuments, registration);
domainInfo->mControlledDocuments.EnumerateRead(EnumControlledDocuments,
&data);
}
END_WORKERS_NAMESPACE
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