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PresentationService.cpp
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PresentationService.cpp
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "PresentationService.h"
#include "ipc/PresentationIPCService.h"
#include "mozilla/Services.h"
#include "nsGlobalWindow.h"
#include "nsIMutableArray.h"
#include "nsIObserverService.h"
#include "nsIPresentationControlChannel.h"
#include "nsIPresentationDeviceManager.h"
#include "nsIPresentationDevicePrompt.h"
#include "nsIPresentationListener.h"
#include "nsIPresentationRequestUIGlue.h"
#include "nsIPresentationSessionRequest.h"
#include "nsIPresentationTerminateRequest.h"
#include "nsISupportsPrimitives.h"
#include "nsNetUtil.h"
#include "nsServiceManagerUtils.h"
#include "nsThreadUtils.h"
#include "nsXPCOMCID.h"
#include "nsXULAppAPI.h"
#include "PresentationLog.h"
namespace mozilla {
namespace dom {
static bool
IsSameDevice(nsIPresentationDevice* aDevice, nsIPresentationDevice* aDeviceAnother) {
if (!aDevice || !aDeviceAnother) {
return false;
}
nsAutoCString deviceId;
aDevice->GetId(deviceId);
nsAutoCString anotherId;
aDeviceAnother->GetId(anotherId);
if (!deviceId.Equals(anotherId)) {
return false;
}
nsAutoCString deviceType;
aDevice->GetType(deviceType);
nsAutoCString anotherType;
aDeviceAnother->GetType(anotherType);
if (!deviceType.Equals(anotherType)) {
return false;
}
return true;
}
static nsresult
ConvertURLArrayHelper(const nsTArray<nsString>& aUrls, nsIArray** aResult)
{
if (!aResult) {
return NS_ERROR_INVALID_POINTER;
}
*aResult = nullptr;
nsresult rv;
nsCOMPtr<nsIMutableArray> urls =
do_CreateInstance(NS_ARRAY_CONTRACTID, &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
for (const auto& url : aUrls) {
nsCOMPtr<nsISupportsString> isupportsString =
do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID, &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = isupportsString->SetData(url);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = urls->AppendElement(isupportsString);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
urls.forget(aResult);
return NS_OK;
}
/*
* Implementation of PresentationDeviceRequest
*/
class PresentationDeviceRequest final : public nsIPresentationDeviceRequest
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIPRESENTATIONDEVICEREQUEST
PresentationDeviceRequest(
const nsTArray<nsString>& aUrls,
const nsAString& aId,
const nsAString& aOrigin,
uint64_t aWindowId,
EventTarget* aEventTarget,
nsIPrincipal* aPrincipal,
nsIPresentationServiceCallback* aCallback,
nsIPresentationTransportBuilderConstructor* aBuilderConstructor);
private:
virtual ~PresentationDeviceRequest() = default;
nsresult CreateSessionInfo(nsIPresentationDevice* aDevice,
const nsAString& aSelectedRequestUrl);
nsTArray<nsString> mRequestUrls;
nsString mId;
nsString mOrigin;
uint64_t mWindowId;
nsWeakPtr mChromeEventHandler;
nsCOMPtr<nsIPrincipal> mPrincipal;
nsCOMPtr<nsIPresentationServiceCallback> mCallback;
nsCOMPtr<nsIPresentationTransportBuilderConstructor> mBuilderConstructor;
};
LazyLogModule gPresentationLog("Presentation");
NS_IMPL_ISUPPORTS(PresentationDeviceRequest, nsIPresentationDeviceRequest)
PresentationDeviceRequest::PresentationDeviceRequest(
const nsTArray<nsString>& aUrls,
const nsAString& aId,
const nsAString& aOrigin,
uint64_t aWindowId,
EventTarget* aEventTarget,
nsIPrincipal* aPrincipal,
nsIPresentationServiceCallback* aCallback,
nsIPresentationTransportBuilderConstructor* aBuilderConstructor)
: mRequestUrls(aUrls)
, mId(aId)
, mOrigin(aOrigin)
, mWindowId(aWindowId)
, mChromeEventHandler(do_GetWeakReference(aEventTarget))
, mPrincipal(aPrincipal)
, mCallback(aCallback)
, mBuilderConstructor(aBuilderConstructor)
{
MOZ_ASSERT(!mRequestUrls.IsEmpty());
MOZ_ASSERT(!mId.IsEmpty());
MOZ_ASSERT(!mOrigin.IsEmpty());
MOZ_ASSERT(mCallback);
MOZ_ASSERT(mBuilderConstructor);
}
NS_IMETHODIMP
PresentationDeviceRequest::GetOrigin(nsAString& aOrigin)
{
aOrigin = mOrigin;
return NS_OK;
}
NS_IMETHODIMP
PresentationDeviceRequest::GetRequestURLs(nsIArray** aUrls)
{
return ConvertURLArrayHelper(mRequestUrls, aUrls);
}
NS_IMETHODIMP
PresentationDeviceRequest::GetChromeEventHandler(EventTarget** aChromeEventHandler)
{
RefPtr<EventTarget> handler(do_QueryReferent(mChromeEventHandler));
handler.forget(aChromeEventHandler);
return NS_OK;
}
NS_IMETHODIMP
PresentationDeviceRequest::GetPrincipal(nsIPrincipal** aPrincipal)
{
nsCOMPtr<nsIPrincipal> principal(mPrincipal);
principal.forget(aPrincipal);
return NS_OK;
}
NS_IMETHODIMP
PresentationDeviceRequest::Select(nsIPresentationDevice* aDevice)
{
MOZ_ASSERT(NS_IsMainThread());
if (NS_WARN_IF(!aDevice)) {
MOZ_ASSERT(false, "|aDevice| should noe be null.");
mCallback->NotifyError(NS_ERROR_DOM_OPERATION_ERR);
return NS_ERROR_INVALID_ARG;
}
// Select the most suitable URL for starting the presentation.
nsAutoString selectedRequestUrl;
for (const auto& url : mRequestUrls) {
bool isSupported;
if (NS_SUCCEEDED(aDevice->IsRequestedUrlSupported(url, &isSupported)) &&
isSupported) {
selectedRequestUrl.Assign(url);
break;
}
}
if (selectedRequestUrl.IsEmpty()) {
return mCallback->NotifyError(NS_ERROR_DOM_NOT_FOUND_ERR);
}
if (NS_WARN_IF(NS_FAILED(CreateSessionInfo(aDevice, selectedRequestUrl)))) {
return mCallback->NotifyError(NS_ERROR_DOM_OPERATION_ERR);
}
return mCallback->NotifySuccess(selectedRequestUrl);
}
nsresult
PresentationDeviceRequest::CreateSessionInfo(
nsIPresentationDevice* aDevice,
const nsAString& aSelectedRequestUrl)
{
nsCOMPtr<nsIPresentationService> service =
do_GetService(PRESENTATION_SERVICE_CONTRACTID);
if (NS_WARN_IF(!service)) {
return NS_ERROR_NOT_AVAILABLE;
}
// Create the controlling session info
RefPtr<PresentationSessionInfo> info =
static_cast<PresentationService*>(service.get())->
CreateControllingSessionInfo(aSelectedRequestUrl, mId, mWindowId);
if (NS_WARN_IF(!info)) {
return NS_ERROR_NOT_AVAILABLE;
}
info->SetDevice(aDevice);
// Establish a control channel. If we failed to do so, the callback is called
// with an error message.
nsCOMPtr<nsIPresentationControlChannel> ctrlChannel;
nsresult rv = aDevice->EstablishControlChannel(getter_AddRefs(ctrlChannel));
if (NS_WARN_IF(NS_FAILED(rv))) {
return info->ReplyError(NS_ERROR_DOM_OPERATION_ERR);
}
// Initialize the session info with the control channel.
rv = info->Init(ctrlChannel);
if (NS_WARN_IF(NS_FAILED(rv))) {
return info->ReplyError(NS_ERROR_DOM_OPERATION_ERR);
}
info->SetTransportBuilderConstructor(mBuilderConstructor);
return NS_OK;
}
NS_IMETHODIMP
PresentationDeviceRequest::Cancel(nsresult aReason)
{
return mCallback->NotifyError(aReason);
}
/*
* Implementation of PresentationService
*/
NS_IMPL_ISUPPORTS(PresentationService,
nsIPresentationService,
nsIObserver)
PresentationService::PresentationService()
{
}
PresentationService::~PresentationService()
{
HandleShutdown();
}
bool
PresentationService::Init()
{
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
if (NS_WARN_IF(!obs)) {
return false;
}
nsresult rv = obs->AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
rv = obs->AddObserver(this, PRESENTATION_DEVICE_CHANGE_TOPIC, false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
rv = obs->AddObserver(this, PRESENTATION_SESSION_REQUEST_TOPIC, false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
rv = obs->AddObserver(this, PRESENTATION_TERMINATE_REQUEST_TOPIC, false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
rv = obs->AddObserver(this, PRESENTATION_RECONNECT_REQUEST_TOPIC, false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
return !NS_WARN_IF(NS_FAILED(rv));
}
NS_IMETHODIMP
PresentationService::Observe(nsISupports* aSubject,
const char* aTopic,
const char16_t* aData)
{
if (!strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
HandleShutdown();
return NS_OK;
} else if (!strcmp(aTopic, PRESENTATION_DEVICE_CHANGE_TOPIC)) {
// Ignore the "update" case here, since we only care about the arrival and
// removal of the device.
if (!NS_strcmp(aData, u"add")) {
nsCOMPtr<nsIPresentationDevice> device = do_QueryInterface(aSubject);
if (NS_WARN_IF(!device)) {
return NS_ERROR_FAILURE;
}
return HandleDeviceAdded(device);
} else if(!NS_strcmp(aData, u"remove")) {
return HandleDeviceRemoved();
}
return NS_OK;
} else if (!strcmp(aTopic, PRESENTATION_SESSION_REQUEST_TOPIC)) {
nsCOMPtr<nsIPresentationSessionRequest> request(do_QueryInterface(aSubject));
if (NS_WARN_IF(!request)) {
return NS_ERROR_FAILURE;
}
return HandleSessionRequest(request);
} else if (!strcmp(aTopic, PRESENTATION_TERMINATE_REQUEST_TOPIC)) {
nsCOMPtr<nsIPresentationTerminateRequest> request(do_QueryInterface(aSubject));
if (NS_WARN_IF(!request)) {
return NS_ERROR_FAILURE;
}
return HandleTerminateRequest(request);
} else if (!strcmp(aTopic, PRESENTATION_RECONNECT_REQUEST_TOPIC)) {
nsCOMPtr<nsIPresentationSessionRequest> request(do_QueryInterface(aSubject));
if (NS_WARN_IF(!request)) {
return NS_ERROR_FAILURE;
}
return HandleReconnectRequest(request);
} else if (!strcmp(aTopic, "profile-after-change")) {
// It's expected since we add and entry to |kLayoutCategories| in
// |nsLayoutModule.cpp| to launch this service earlier.
return NS_OK;
}
MOZ_ASSERT(false, "Unexpected topic for PresentationService");
return NS_ERROR_UNEXPECTED;
}
void
PresentationService::HandleShutdown()
{
MOZ_ASSERT(NS_IsMainThread());
Shutdown();
mAvailabilityManager.Clear();
mSessionInfoAtController.Clear();
mSessionInfoAtReceiver.Clear();
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
if (obs) {
obs->RemoveObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID);
obs->RemoveObserver(this, PRESENTATION_DEVICE_CHANGE_TOPIC);
obs->RemoveObserver(this, PRESENTATION_SESSION_REQUEST_TOPIC);
obs->RemoveObserver(this, PRESENTATION_TERMINATE_REQUEST_TOPIC);
obs->RemoveObserver(this, PRESENTATION_RECONNECT_REQUEST_TOPIC);
}
}
nsresult
PresentationService::HandleDeviceAdded(nsIPresentationDevice* aDevice)
{
PRES_DEBUG("%s\n", __func__);
if (!aDevice) {
MOZ_ASSERT(false, "aDevice shoud no be null.");
return NS_ERROR_INVALID_ARG;
}
// Query for only unavailable URLs while device added.
nsTArray<nsString> unavailableUrls;
mAvailabilityManager.GetAvailbilityUrlByAvailability(unavailableUrls, false);
nsTArray<nsString> supportedAvailabilityUrl;
for (const auto& url : unavailableUrls) {
bool isSupported;
if (NS_SUCCEEDED(aDevice->IsRequestedUrlSupported(url, &isSupported)) &&
isSupported) {
supportedAvailabilityUrl.AppendElement(url);
}
}
if (!supportedAvailabilityUrl.IsEmpty()) {
return mAvailabilityManager.DoNotifyAvailableChange(supportedAvailabilityUrl,
true);
}
return NS_OK;
}
nsresult
PresentationService::HandleDeviceRemoved()
{
PRES_DEBUG("%s\n", __func__);
// Query for only available URLs while device removed.
nsTArray<nsString> availabilityUrls;
mAvailabilityManager.GetAvailbilityUrlByAvailability(availabilityUrls, true);
return UpdateAvailabilityUrlChange(availabilityUrls);
}
nsresult
PresentationService::UpdateAvailabilityUrlChange(
const nsTArray<nsString>& aAvailabilityUrls)
{
nsCOMPtr<nsIPresentationDeviceManager> deviceManager =
do_GetService(PRESENTATION_DEVICE_MANAGER_CONTRACTID);
if (NS_WARN_IF(!deviceManager)) {
return NS_ERROR_NOT_AVAILABLE;
}
nsCOMPtr<nsIArray> devices;
nsresult rv = deviceManager->GetAvailableDevices(nullptr,
getter_AddRefs(devices));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
uint32_t numOfDevices;
devices->GetLength(&numOfDevices);
nsTArray<nsString> supportedAvailabilityUrl;
for (const auto& url : aAvailabilityUrls) {
for (uint32_t i = 0; i < numOfDevices; ++i) {
nsCOMPtr<nsIPresentationDevice> device = do_QueryElementAt(devices, i);
if (device) {
bool isSupported;
if (NS_SUCCEEDED(device->IsRequestedUrlSupported(url, &isSupported)) &&
isSupported) {
supportedAvailabilityUrl.AppendElement(url);
break;
}
}
}
}
if (supportedAvailabilityUrl.IsEmpty()) {
return mAvailabilityManager.DoNotifyAvailableChange(aAvailabilityUrls,
false);
}
return mAvailabilityManager.DoNotifyAvailableChange(supportedAvailabilityUrl,
true);
}
nsresult
PresentationService::HandleSessionRequest(nsIPresentationSessionRequest* aRequest)
{
nsCOMPtr<nsIPresentationControlChannel> ctrlChannel;
nsresult rv = aRequest->GetControlChannel(getter_AddRefs(ctrlChannel));
if (NS_WARN_IF(NS_FAILED(rv) || !ctrlChannel)) {
return rv;
}
nsAutoString url;
rv = aRequest->GetUrl(url);
if (NS_WARN_IF(NS_FAILED(rv))) {
ctrlChannel->Disconnect(rv);
return rv;
}
nsAutoString sessionId;
rv = aRequest->GetPresentationId(sessionId);
if (NS_WARN_IF(NS_FAILED(rv))) {
ctrlChannel->Disconnect(rv);
return rv;
}
nsCOMPtr<nsIPresentationDevice> device;
rv = aRequest->GetDevice(getter_AddRefs(device));
if (NS_WARN_IF(NS_FAILED(rv))) {
ctrlChannel->Disconnect(rv);
return rv;
}
// Create or reuse session info.
RefPtr<PresentationSessionInfo> info =
GetSessionInfo(sessionId, nsIPresentationService::ROLE_RECEIVER);
// This is the case for reconnecting a session.
// Update the control channel and device of the session info.
// Call |NotifyResponderReady| to indicate the receiver page is already there.
if (info) {
PRES_DEBUG("handle reconnection:id[%s]\n",
NS_ConvertUTF16toUTF8(sessionId).get());
info->SetControlChannel(ctrlChannel);
info->SetDevice(device);
return static_cast<PresentationPresentingInfo*>(
info.get())->DoReconnect();
}
// This is the case for a new session.
PRES_DEBUG("handle new session:url[%s], id[%s]\n",
NS_ConvertUTF16toUTF8(url).get(),
NS_ConvertUTF16toUTF8(sessionId).get());
info = new PresentationPresentingInfo(url, sessionId, device);
rv = info->Init(ctrlChannel);
if (NS_WARN_IF(NS_FAILED(rv))) {
ctrlChannel->Disconnect(rv);
return rv;
}
mSessionInfoAtReceiver.Put(sessionId, info);
// Notify the receiver to launch.
nsCOMPtr<nsIPresentationRequestUIGlue> glue =
do_CreateInstance(PRESENTATION_REQUEST_UI_GLUE_CONTRACTID);
if (NS_WARN_IF(!glue)) {
ctrlChannel->Disconnect(NS_ERROR_DOM_OPERATION_ERR);
return info->ReplyError(NS_ERROR_DOM_OPERATION_ERR);
}
RefPtr<Promise> promise;
rv = glue->SendRequest(url, sessionId, device, getter_AddRefs(promise));
if (NS_WARN_IF(NS_FAILED(rv))) {
ctrlChannel->Disconnect(rv);
return info->ReplyError(NS_ERROR_DOM_OPERATION_ERR);
}
static_cast<PresentationPresentingInfo*>(info.get())->SetPromise(promise);
return NS_OK;
}
nsresult
PresentationService::HandleTerminateRequest(nsIPresentationTerminateRequest* aRequest)
{
nsCOMPtr<nsIPresentationControlChannel> ctrlChannel;
nsresult rv = aRequest->GetControlChannel(getter_AddRefs(ctrlChannel));
if (NS_WARN_IF(NS_FAILED(rv) || !ctrlChannel)) {
return rv;
}
nsAutoString sessionId;
rv = aRequest->GetPresentationId(sessionId);
if (NS_WARN_IF(NS_FAILED(rv))) {
ctrlChannel->Disconnect(rv);
return rv;
}
nsCOMPtr<nsIPresentationDevice> device;
rv = aRequest->GetDevice(getter_AddRefs(device));
if (NS_WARN_IF(NS_FAILED(rv))) {
ctrlChannel->Disconnect(rv);
return rv;
}
bool isFromReceiver;
rv = aRequest->GetIsFromReceiver(&isFromReceiver);
if (NS_WARN_IF(NS_FAILED(rv))) {
ctrlChannel->Disconnect(rv);
return rv;
}
RefPtr<PresentationSessionInfo> info;
if (!isFromReceiver) {
info = GetSessionInfo(sessionId, nsIPresentationService::ROLE_RECEIVER);
} else {
info = GetSessionInfo(sessionId, nsIPresentationService::ROLE_CONTROLLER);
}
if (NS_WARN_IF(!info)) {
// Cannot terminate non-existed session.
ctrlChannel->Disconnect(NS_ERROR_DOM_OPERATION_ERR);
return NS_ERROR_DOM_ABORT_ERR;
}
// Check if terminate request comes from known device.
RefPtr<nsIPresentationDevice> knownDevice = info->GetDevice();
if (NS_WARN_IF(!IsSameDevice(device, knownDevice))) {
ctrlChannel->Disconnect(NS_ERROR_DOM_OPERATION_ERR);
return NS_ERROR_DOM_ABORT_ERR;
}
PRES_DEBUG("%s:handle termination:id[%s], receiver[%d]\n", __func__,
NS_ConvertUTF16toUTF8(sessionId).get(), isFromReceiver);
return info->OnTerminate(ctrlChannel);
}
nsresult
PresentationService::HandleReconnectRequest(nsIPresentationSessionRequest* aRequest)
{
nsCOMPtr<nsIPresentationControlChannel> ctrlChannel;
nsresult rv = aRequest->GetControlChannel(getter_AddRefs(ctrlChannel));
if (NS_WARN_IF(NS_FAILED(rv) || !ctrlChannel)) {
return rv;
}
nsAutoString sessionId;
rv = aRequest->GetPresentationId(sessionId);
if (NS_WARN_IF(NS_FAILED(rv))) {
ctrlChannel->Disconnect(rv);
return rv;
}
uint64_t windowId;
rv = GetWindowIdBySessionIdInternal(sessionId,
nsIPresentationService::ROLE_RECEIVER,
&windowId);
if (NS_WARN_IF(NS_FAILED(rv))) {
ctrlChannel->Disconnect(rv);
return rv;
}
RefPtr<PresentationSessionInfo> info =
GetSessionInfo(sessionId, nsIPresentationService::ROLE_RECEIVER);
if (NS_WARN_IF(!info)) {
// Cannot reconnect non-existed session
ctrlChannel->Disconnect(NS_ERROR_DOM_OPERATION_ERR);
return NS_ERROR_DOM_ABORT_ERR;
}
nsAutoString url;
rv = aRequest->GetUrl(url);
if (NS_WARN_IF(NS_FAILED(rv))) {
ctrlChannel->Disconnect(rv);
return rv;
}
// Make sure the url is the same as the previous one.
if (NS_WARN_IF(!info->GetUrl().Equals(url))) {
ctrlChannel->Disconnect(rv);
return rv;
}
return HandleSessionRequest(aRequest);
}
NS_IMETHODIMP
PresentationService::StartSession(
const nsTArray<nsString>& aUrls,
const nsAString& aSessionId,
const nsAString& aOrigin,
const nsAString& aDeviceId,
uint64_t aWindowId,
EventTarget* aEventTarget,
nsIPrincipal* aPrincipal,
nsIPresentationServiceCallback* aCallback,
nsIPresentationTransportBuilderConstructor* aBuilderConstructor)
{
PRES_DEBUG("%s:id[%s]\n", __func__, NS_ConvertUTF16toUTF8(aSessionId).get());
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aCallback);
MOZ_ASSERT(!aSessionId.IsEmpty());
MOZ_ASSERT(!aUrls.IsEmpty());
nsCOMPtr<nsIPresentationDeviceRequest> request =
new PresentationDeviceRequest(aUrls,
aSessionId,
aOrigin,
aWindowId,
aEventTarget,
aPrincipal,
aCallback,
aBuilderConstructor);
if (aDeviceId.IsVoid()) {
// Pop up a prompt and ask user to select a device.
nsCOMPtr<nsIPresentationDevicePrompt> prompt =
do_GetService(PRESENTATION_DEVICE_PROMPT_CONTRACTID);
if (NS_WARN_IF(!prompt)) {
return aCallback->NotifyError(NS_ERROR_DOM_INVALID_ACCESS_ERR);
}
nsresult rv = prompt->PromptDeviceSelection(request);
if (NS_WARN_IF(NS_FAILED(rv))) {
return aCallback->NotifyError(NS_ERROR_DOM_OPERATION_ERR);
}
return NS_OK;
}
// Find the designated device from available device list.
nsCOMPtr<nsIPresentationDeviceManager> deviceManager =
do_GetService(PRESENTATION_DEVICE_MANAGER_CONTRACTID);
if (NS_WARN_IF(!deviceManager)) {
return aCallback->NotifyError(NS_ERROR_DOM_OPERATION_ERR);
}
nsCOMPtr<nsIArray> presentationUrls;
if (NS_WARN_IF(NS_FAILED(
ConvertURLArrayHelper(aUrls, getter_AddRefs(presentationUrls))))) {
return aCallback->NotifyError(NS_ERROR_DOM_OPERATION_ERR);
}
nsCOMPtr<nsIArray> devices;
nsresult rv = deviceManager->GetAvailableDevices(presentationUrls, getter_AddRefs(devices));
if (NS_WARN_IF(NS_FAILED(rv))) {
return aCallback->NotifyError(NS_ERROR_DOM_OPERATION_ERR);
}
nsCOMPtr<nsISimpleEnumerator> enumerator;
rv = devices->Enumerate(getter_AddRefs(enumerator));
if (NS_WARN_IF(NS_FAILED(rv))) {
return aCallback->NotifyError(NS_ERROR_DOM_OPERATION_ERR);
}
NS_ConvertUTF16toUTF8 utf8DeviceId(aDeviceId);
bool hasMore;
while (NS_SUCCEEDED(enumerator->HasMoreElements(&hasMore)) && hasMore) {
nsCOMPtr<nsISupports> isupports;
rv = enumerator->GetNext(getter_AddRefs(isupports));
nsCOMPtr<nsIPresentationDevice> device(do_QueryInterface(isupports));
MOZ_ASSERT(device);
nsAutoCString id;
if (NS_SUCCEEDED(device->GetId(id)) && id.Equals(utf8DeviceId)) {
request->Select(device);
return NS_OK;
}
}
// Reject if designated device is not available.
return aCallback->NotifyError(NS_ERROR_DOM_NOT_FOUND_ERR);
}
already_AddRefed<PresentationSessionInfo>
PresentationService::CreateControllingSessionInfo(const nsAString& aUrl,
const nsAString& aSessionId,
uint64_t aWindowId)
{
MOZ_ASSERT(NS_IsMainThread());
if (aSessionId.IsEmpty()) {
return nullptr;
}
RefPtr<PresentationSessionInfo> info =
new PresentationControllingInfo(aUrl, aSessionId);
mSessionInfoAtController.Put(aSessionId, info);
AddRespondingSessionId(aWindowId,
aSessionId,
nsIPresentationService::ROLE_CONTROLLER);
return info.forget();
}
NS_IMETHODIMP
PresentationService::SendSessionMessage(const nsAString& aSessionId,
uint8_t aRole,
const nsAString& aData)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aData.IsEmpty());
MOZ_ASSERT(!aSessionId.IsEmpty());
MOZ_ASSERT(aRole == nsIPresentationService::ROLE_CONTROLLER ||
aRole == nsIPresentationService::ROLE_RECEIVER);
RefPtr<PresentationSessionInfo> info = GetSessionInfo(aSessionId, aRole);
if (NS_WARN_IF(!info)) {
return NS_ERROR_NOT_AVAILABLE;
}
return info->Send(aData);
}
NS_IMETHODIMP
PresentationService::SendSessionBinaryMsg(const nsAString& aSessionId,
uint8_t aRole,
const nsACString &aData)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aData.IsEmpty());
MOZ_ASSERT(!aSessionId.IsEmpty());
MOZ_ASSERT(aRole == nsIPresentationService::ROLE_CONTROLLER ||
aRole == nsIPresentationService::ROLE_RECEIVER);
RefPtr<PresentationSessionInfo> info = GetSessionInfo(aSessionId, aRole);
if (NS_WARN_IF(!info)) {
return NS_ERROR_NOT_AVAILABLE;
}
return info->SendBinaryMsg(aData);
}
NS_IMETHODIMP
PresentationService::SendSessionBlob(const nsAString& aSessionId,
uint8_t aRole,
Blob* aBlob)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aSessionId.IsEmpty());
MOZ_ASSERT(aRole == nsIPresentationService::ROLE_CONTROLLER ||
aRole == nsIPresentationService::ROLE_RECEIVER);
MOZ_ASSERT(aBlob);
RefPtr<PresentationSessionInfo> info = GetSessionInfo(aSessionId, aRole);
if (NS_WARN_IF(!info)) {
return NS_ERROR_NOT_AVAILABLE;
}
return info->SendBlob(aBlob);
}
NS_IMETHODIMP
PresentationService::CloseSession(const nsAString& aSessionId,
uint8_t aRole,
uint8_t aClosedReason)
{
PRES_DEBUG("%s:id[%s], reason[%x], role[%d]\n", __func__,
NS_ConvertUTF16toUTF8(aSessionId).get(), aClosedReason, aRole);
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aSessionId.IsEmpty());
MOZ_ASSERT(aRole == nsIPresentationService::ROLE_CONTROLLER ||
aRole == nsIPresentationService::ROLE_RECEIVER);
RefPtr<PresentationSessionInfo> info = GetSessionInfo(aSessionId, aRole);
if (NS_WARN_IF(!info)) {
return NS_ERROR_NOT_AVAILABLE;
}
if (aClosedReason == nsIPresentationService::CLOSED_REASON_WENTAWAY) {
// Remove nsIPresentationSessionListener since we don't want to dispatch
// PresentationConnectionCloseEvent if the page is went away.
info->SetListener(nullptr);
}
return info->Close(NS_OK, nsIPresentationSessionListener::STATE_CLOSED);
}
NS_IMETHODIMP
PresentationService::TerminateSession(const nsAString& aSessionId,
uint8_t aRole)
{
PRES_DEBUG("%s:id[%s], role[%d]\n", __func__,
NS_ConvertUTF16toUTF8(aSessionId).get(), aRole);
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aSessionId.IsEmpty());
MOZ_ASSERT(aRole == nsIPresentationService::ROLE_CONTROLLER ||
aRole == nsIPresentationService::ROLE_RECEIVER);
RefPtr<PresentationSessionInfo> info = GetSessionInfo(aSessionId, aRole);
if (NS_WARN_IF(!info)) {
return NS_ERROR_NOT_AVAILABLE;
}
return info->Close(NS_OK, nsIPresentationSessionListener::STATE_TERMINATED);
}
NS_IMETHODIMP
PresentationService::ReconnectSession(const nsTArray<nsString>& aUrls,
const nsAString& aSessionId,
uint8_t aRole,
nsIPresentationServiceCallback* aCallback)
{
PRES_DEBUG("%s:id[%s]\n", __func__, NS_ConvertUTF16toUTF8(aSessionId).get());
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aSessionId.IsEmpty());
MOZ_ASSERT(aCallback);
MOZ_ASSERT(!aUrls.IsEmpty());
if (aRole != nsIPresentationService::ROLE_CONTROLLER) {
MOZ_ASSERT(false, "Only controller can call ReconnectSession.");
return NS_ERROR_INVALID_ARG;
}
if (NS_WARN_IF(!aCallback)) {
return NS_ERROR_INVALID_ARG;
}
RefPtr<PresentationSessionInfo> info = GetSessionInfo(aSessionId, aRole);
if (NS_WARN_IF(!info)) {
return aCallback->NotifyError(NS_ERROR_DOM_NOT_FOUND_ERR);
}
if (NS_WARN_IF(!aUrls.Contains(info->GetUrl()))) {
return aCallback->NotifyError(NS_ERROR_DOM_NOT_FOUND_ERR);
}
return static_cast<PresentationControllingInfo*>(info.get())->Reconnect(aCallback);
}
NS_IMETHODIMP
PresentationService::BuildTransport(const nsAString& aSessionId,
uint8_t aRole)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aSessionId.IsEmpty());
if (aRole != nsIPresentationService::ROLE_CONTROLLER) {
MOZ_ASSERT(false, "Only controller can call BuildTransport.");
return NS_ERROR_INVALID_ARG;
}
RefPtr<PresentationSessionInfo> info = GetSessionInfo(aSessionId, aRole);
if (NS_WARN_IF(!info)) {
return NS_ERROR_NOT_AVAILABLE;
}
return static_cast<PresentationControllingInfo*>(info.get())->BuildTransport();
}
NS_IMETHODIMP
PresentationService::RegisterAvailabilityListener(
const nsTArray<nsString>& aAvailabilityUrls,
nsIPresentationAvailabilityListener* aListener)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aAvailabilityUrls.IsEmpty());
MOZ_ASSERT(aListener);
mAvailabilityManager.AddAvailabilityListener(aAvailabilityUrls, aListener);
return UpdateAvailabilityUrlChange(aAvailabilityUrls);
}
NS_IMETHODIMP
PresentationService::UnregisterAvailabilityListener(
const nsTArray<nsString>& aAvailabilityUrls,
nsIPresentationAvailabilityListener* aListener)
{
MOZ_ASSERT(NS_IsMainThread());
mAvailabilityManager.RemoveAvailabilityListener(aAvailabilityUrls, aListener);
return NS_OK;
}
NS_IMETHODIMP
PresentationService::RegisterSessionListener(const nsAString& aSessionId,
uint8_t aRole,
nsIPresentationSessionListener* aListener)
{
PRES_DEBUG("%s:id[%s], role[%d]\n", __func__,
NS_ConvertUTF16toUTF8(aSessionId).get(), aRole);
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aListener);
MOZ_ASSERT(aRole == nsIPresentationService::ROLE_CONTROLLER ||
aRole == nsIPresentationService::ROLE_RECEIVER);
RefPtr<PresentationSessionInfo> info = GetSessionInfo(aSessionId, aRole);
if (NS_WARN_IF(!info)) {
// Notify the listener of TERMINATED since no correspondent session info is
// available possibly due to establishment failure. This would be useful at
// the receiver side, since a presentation session is created at beginning
// and here is the place to realize the underlying establishment fails.
nsresult rv = aListener->NotifyStateChange(aSessionId,
nsIPresentationSessionListener::STATE_TERMINATED,
NS_ERROR_NOT_AVAILABLE);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_ERROR_NOT_AVAILABLE;
}
return info->SetListener(aListener);
}
NS_IMETHODIMP
PresentationService::UnregisterSessionListener(const nsAString& aSessionId,
uint8_t aRole)
{
PRES_DEBUG("%s:id[%s], role[%d]\n", __func__,
NS_ConvertUTF16toUTF8(aSessionId).get(), aRole);
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aRole == nsIPresentationService::ROLE_CONTROLLER ||
aRole == nsIPresentationService::ROLE_RECEIVER);
RefPtr<PresentationSessionInfo> info = GetSessionInfo(aSessionId, aRole);
if (info) {
// When content side decide not handling this session anymore, simply
// close the connection. Session info is kept for reconnection.
Unused << NS_WARN_IF(NS_FAILED(info->Close(NS_OK, nsIPresentationSessionListener::STATE_CLOSED)));
return info->SetListener(nullptr);
}