gecko/dom/telephony/Telephony.cpp
Ben Turner ab2e88dc7e Bug 717451 - 'Telephony: Keep telephony objects on multiple pages in sync'. r=sicking.
--HG--
extra : transplant_source : %15%BB%92%8E%A38A%80%9E%A40T%E5BCi%BE%ACK%F7
2012-02-24 05:14:37 -08:00

575 lines
17 KiB
C++

/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* vim: set ts=2 et sw=2 tw=40: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Telephony.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Ben Turner <bent.mozilla@gmail.com> (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "Telephony.h"
#include "nsIDocument.h"
#include "nsIURI.h"
#include "nsIURL.h"
#include "nsPIDOMWindow.h"
#include "jsapi.h"
#include "mozilla/Preferences.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsContentUtils.h"
#include "nsDOMClassInfo.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsNetUtil.h"
#include "nsServiceManagerUtils.h"
#include "SystemWorkerManager.h"
#include "CallEvent.h"
#include "TelephonyCall.h"
USING_TELEPHONY_NAMESPACE
using mozilla::Preferences;
#define DOM_TELEPHONY_APP_PHONE_URL_PREF "dom.telephony.app.phone.url"
namespace {
typedef nsAutoTArray<Telephony*, 2> TelephonyList;
TelephonyList* gTelephonyList;
template <class T>
inline nsresult
nsTArrayToJSArray(JSContext* aCx, JSObject* aGlobal,
const nsTArray<nsRefPtr<T> >& aSourceArray,
JSObject** aResultArray)
{
NS_ASSERTION(aCx, "Null context!");
NS_ASSERTION(aGlobal, "Null global!");
JSAutoRequest ar(aCx);
JSAutoEnterCompartment ac;
if (!ac.enter(aCx, aGlobal)) {
NS_WARNING("Failed to enter compartment!");
return NS_ERROR_FAILURE;
}
JSObject* arrayObj;
if (aSourceArray.IsEmpty()) {
arrayObj = JS_NewArrayObject(aCx, 0, nsnull);
} else {
nsTArray<jsval> valArray;
valArray.SetLength(aSourceArray.Length());
for (PRUint32 index = 0; index < valArray.Length(); index++) {
nsISupports* obj = aSourceArray[index]->ToISupports();
nsresult rv =
nsContentUtils::WrapNative(aCx, aGlobal, obj, &valArray[index]);
NS_ENSURE_SUCCESS(rv, rv);
}
arrayObj = JS_NewArrayObject(aCx, valArray.Length(), valArray.Elements());
}
if (!arrayObj) {
return NS_ERROR_OUT_OF_MEMORY;
}
// XXX This is not what Jonas wants. He wants it to be live.
if (!JS_FreezeObject(aCx, arrayObj)) {
return NS_ERROR_FAILURE;
}
*aResultArray = arrayObj;
return NS_OK;
}
} // anonymous namespace
Telephony::Telephony()
: mActiveCall(nsnull), mCallsArray(nsnull), mRooted(false)
{
if (!gTelephonyList) {
gTelephonyList = new TelephonyList();
}
gTelephonyList->AppendElement(this);
}
Telephony::~Telephony()
{
if (mRIL && mRILTelephonyCallback) {
mRIL->UnregisterCallback(mRILTelephonyCallback);
}
if (mRooted) {
NS_DROP_JS_OBJECTS(this, Telephony);
}
NS_ASSERTION(gTelephonyList, "This should never be null!");
NS_ASSERTION(gTelephonyList->Contains(this), "Should be in the list!");
if (gTelephonyList->Length() == 1) {
delete gTelephonyList;
gTelephonyList = nsnull;
}
else {
gTelephonyList->RemoveElement(this);
}
}
// static
already_AddRefed<Telephony>
Telephony::Create(nsPIDOMWindow* aOwner, nsIRadioInterfaceLayer* aRIL)
{
NS_ASSERTION(aOwner, "Null owner!");
NS_ASSERTION(aRIL, "Null RIL!");
nsCOMPtr<nsIScriptGlobalObject> sgo = do_QueryInterface(aOwner);
NS_ENSURE_TRUE(sgo, nsnull);
nsCOMPtr<nsIScriptContext> scriptContext = sgo->GetContext();
NS_ENSURE_TRUE(scriptContext, nsnull);
nsRefPtr<Telephony> telephony = new Telephony();
telephony->mOwner = aOwner;
telephony->mScriptContext.swap(scriptContext);
telephony->mRIL = aRIL;
telephony->mRILTelephonyCallback = new RILTelephonyCallback(telephony);
nsresult rv = aRIL->EnumerateCalls(telephony->mRILTelephonyCallback);
NS_ENSURE_SUCCESS(rv, nsnull);
rv = aRIL->RegisterCallback(telephony->mRILTelephonyCallback);
NS_ENSURE_SUCCESS(rv, nsnull);
return telephony.forget();
}
already_AddRefed<TelephonyCall>
Telephony::CreateNewDialingCall(const nsAString& aNumber)
{
nsRefPtr<TelephonyCall> call =
TelephonyCall::Create(this, aNumber,
nsIRadioInterfaceLayer::CALL_STATE_DIALING);
NS_ASSERTION(call, "This should never fail!");
NS_ASSERTION(mCalls.Contains(call), "Should have auto-added new call!");
return call.forget();
}
void
Telephony::NoteDialedCallFromOtherInstance(const nsAString& aNumber)
{
// We don't need to hang on to this call object, it is held alive by mCalls.
nsRefPtr<TelephonyCall> call = CreateNewDialingCall(aNumber);
}
nsresult
Telephony::NotifyCallsChanged(TelephonyCall* aCall)
{
nsRefPtr<CallEvent> event = CallEvent::Create(aCall);
NS_ASSERTION(event, "This should never fail!");
nsresult rv =
event->Dispatch(ToIDOMEventTarget(), NS_LITERAL_STRING("callschanged"));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMPL_CYCLE_COLLECTION_CLASS(Telephony)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(Telephony,
nsDOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
NS_CYCLE_COLLECTION_TRAVERSE_EVENT_HANDLER(incoming)
NS_CYCLE_COLLECTION_TRAVERSE_EVENT_HANDLER(callschanged)
for (PRUint32 index = 0; index < tmp->mCalls.Length(); index++) {
NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "mCalls[i]");
cb.NoteXPCOMChild(tmp->mCalls[index]->ToISupports());
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(Telephony,
nsDOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_CALLBACK(tmp->mCallsArray, "mCallsArray")
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(Telephony,
nsDOMEventTargetHelper)
NS_CYCLE_COLLECTION_UNLINK_EVENT_HANDLER(incoming)
NS_CYCLE_COLLECTION_UNLINK_EVENT_HANDLER(callschanged)
tmp->mCalls.Clear();
tmp->mActiveCall = nsnull;
tmp->mCallsArray = nsnull;
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(Telephony)
NS_INTERFACE_MAP_ENTRY(nsIDOMTelephony)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(Telephony)
NS_INTERFACE_MAP_END_INHERITING(nsDOMEventTargetHelper)
NS_IMPL_ADDREF_INHERITED(Telephony, nsDOMEventTargetHelper)
NS_IMPL_RELEASE_INHERITED(Telephony, nsDOMEventTargetHelper)
DOMCI_DATA(Telephony, Telephony)
NS_IMPL_ISUPPORTS1(Telephony::RILTelephonyCallback, nsIRILTelephonyCallback)
NS_IMETHODIMP
Telephony::Dial(const nsAString& aNumber, nsIDOMTelephonyCall** aResult)
{
NS_ENSURE_ARG(!aNumber.IsEmpty());
for (PRUint32 index = 0; index < mCalls.Length(); index++) {
const nsRefPtr<TelephonyCall>& tempCall = mCalls[index];
if (tempCall->IsOutgoing() &&
tempCall->CallState() < nsIRadioInterfaceLayer::CALL_STATE_CONNECTED) {
// One call has been dialed already and we only support one outgoing call
// at a time.
NS_WARNING("Only permitted to dial one call at a time!");
return NS_ERROR_NOT_AVAILABLE;
}
}
nsresult rv = mRIL->Dial(aNumber);
NS_ENSURE_SUCCESS(rv, rv);
nsRefPtr<TelephonyCall> call = CreateNewDialingCall(aNumber);
// Notify other telephony objects that we just dialed.
for (PRUint32 index = 0; index < gTelephonyList->Length(); index++) {
Telephony*& telephony = gTelephonyList->ElementAt(index);
if (telephony != this) {
nsRefPtr<Telephony> kungFuDeathGrip = telephony;
telephony->NoteDialedCallFromOtherInstance(aNumber);
}
}
call.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
Telephony::GetMuted(bool* aMuted)
{
nsresult rv = mRIL->GetMicrophoneMuted(aMuted);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
Telephony::SetMuted(bool aMuted)
{
nsresult rv = mRIL->SetMicrophoneMuted(aMuted);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
Telephony::GetSpeakerEnabled(bool* aSpeakerEnabled)
{
nsresult rv = mRIL->GetSpeakerEnabled(aSpeakerEnabled);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
Telephony::SetSpeakerEnabled(bool aSpeakerEnabled)
{
nsresult rv = mRIL->SetSpeakerEnabled(aSpeakerEnabled);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
Telephony::GetActive(jsval* aActive)
{
if (!mActiveCall) {
aActive->setNull();
return NS_OK;
}
nsresult rv =
nsContentUtils::WrapNative(mScriptContext->GetNativeContext(),
mScriptContext->GetNativeGlobal(),
mActiveCall->ToISupports(), aActive);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
Telephony::GetCalls(jsval* aCalls)
{
JSObject* calls = mCallsArray;
if (!calls) {
nsresult rv =
nsTArrayToJSArray(mScriptContext->GetNativeContext(),
mScriptContext->GetNativeGlobal(), mCalls, &calls);
NS_ENSURE_SUCCESS(rv, rv);
if (!mRooted) {
NS_HOLD_JS_OBJECTS(this, Telephony);
mRooted = true;
}
mCallsArray = calls;
}
aCalls->setObject(*calls);
return NS_OK;
}
NS_IMETHODIMP
Telephony::StartTone(const nsAString& aDTMFChar)
{
if (aDTMFChar.IsEmpty()) {
NS_WARNING("Empty tone string will be ignored");
return NS_OK;
}
if (aDTMFChar.Length() > 1) {
return NS_ERROR_INVALID_ARG;
}
nsresult rv = mRIL->StartTone(aDTMFChar);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
Telephony::StopTone()
{
nsresult rv = mRIL->StopTone();
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMPL_EVENT_HANDLER(Telephony, incoming)
NS_IMPL_EVENT_HANDLER(Telephony, callschanged)
NS_IMETHODIMP
Telephony::CallStateChanged(PRUint32 aCallIndex, PRUint16 aCallState,
const nsAString& aNumber)
{
NS_ASSERTION(aCallIndex != kOutgoingPlaceholderCallIndex,
"This should never happen!");
nsRefPtr<TelephonyCall> modifiedCall;
nsRefPtr<TelephonyCall> outgoingCall;
for (PRUint32 index = 0; index < mCalls.Length(); index++) {
nsRefPtr<TelephonyCall>& tempCall = mCalls[index];
if (tempCall->CallIndex() == kOutgoingPlaceholderCallIndex) {
NS_ASSERTION(!outgoingCall, "More than one outgoing call not supported!");
NS_ASSERTION(tempCall->CallState() ==
nsIRadioInterfaceLayer::CALL_STATE_DIALING,
"Something really wrong here!");
// Stash this for later, we may need it if aCallIndex doesn't match one of
// our other calls.
outgoingCall = tempCall;
} else if (tempCall->CallIndex() == aCallIndex) {
// We already know about this call so just update its state.
modifiedCall = tempCall;
outgoingCall = nsnull;
break;
}
}
// If nothing matched above and the call state isn't incoming but we do have
// an outgoing call then we must be seeing a status update for our outgoing
// call.
if (!modifiedCall &&
aCallState != nsIRadioInterfaceLayer::CALL_STATE_INCOMING &&
outgoingCall) {
outgoingCall->UpdateCallIndex(aCallIndex);
modifiedCall.swap(outgoingCall);
}
if (modifiedCall) {
// Change state.
modifiedCall->ChangeState(aCallState);
// See if this should replace our current active call.
if (aCallState == nsIRadioInterfaceLayer::CALL_STATE_CONNECTED) {
mActiveCall = modifiedCall;
}
return NS_OK;
}
// Didn't know anything about this call before now, must be incoming.
NS_ASSERTION(aCallState == nsIRadioInterfaceLayer::CALL_STATE_INCOMING,
"Serious logic problem here!");
nsRefPtr<TelephonyCall> call =
TelephonyCall::Create(this, aNumber, aCallState, aCallIndex);
NS_ASSERTION(call, "This should never fail!");
NS_ASSERTION(mCalls.Contains(call), "Should have auto-added new call!");
// Dispatch incoming event.
nsRefPtr<CallEvent> event = CallEvent::Create(call);
NS_ASSERTION(event, "This should never fail!");
nsresult rv =
event->Dispatch(ToIDOMEventTarget(), NS_LITERAL_STRING("incoming"));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
Telephony::EnumerateCallState(PRUint32 aCallIndex, PRUint16 aCallState,
const nsAString& aNumber, bool aIsActive,
bool* aContinue)
{
#ifdef DEBUG
// Make sure we don't somehow add duplicates.
for (PRUint32 index = 0; index < mCalls.Length(); index++) {
NS_ASSERTION(mCalls[index]->CallIndex() != aCallIndex,
"Something is really wrong here!");
}
#endif
nsRefPtr<TelephonyCall> call =
TelephonyCall::Create(this, aNumber, aCallState, aCallIndex);
NS_ASSERTION(call, "This should never fail!");
NS_ASSERTION(mCalls.Contains(call), "Should have auto-added new call!");
if (aIsActive) {
NS_ASSERTION(!mActiveCall, "Already have an active call!");
mActiveCall = call;
}
*aContinue = true;
return NS_OK;
}
nsresult
NS_NewTelephony(nsPIDOMWindow* aWindow, nsIDOMTelephony** aTelephony)
{
NS_ASSERTION(aWindow, "Null pointer!");
// Make sure we're dealing with an inner window.
nsPIDOMWindow* innerWindow = aWindow->IsInnerWindow() ?
aWindow :
aWindow->GetCurrentInnerWindow();
NS_ENSURE_TRUE(innerWindow, NS_ERROR_FAILURE);
// Make sure we're being called from a window that we have permission to
// access.
if (!nsContentUtils::CanCallerAccess(innerWindow)) {
return NS_ERROR_DOM_SECURITY_ERR;
}
// Need the document in order to make security decisions.
nsCOMPtr<nsIDocument> document =
do_QueryInterface(innerWindow->GetExtantDocument());
NS_ENSURE_TRUE(document, NS_NOINTERFACE);
// Do security checks. We assume that chrome is always allowed and we also
// allow a single page specified by preferences.
if (!nsContentUtils::IsSystemPrincipal(document->NodePrincipal())) {
nsCOMPtr<nsIURI> originalURI;
nsresult rv =
document->NodePrincipal()->GetURI(getter_AddRefs(originalURI));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIURI> documentURI;
rv = originalURI->Clone(getter_AddRefs(documentURI));
NS_ENSURE_SUCCESS(rv, rv);
// Strip the query string (if there is one) before comparing.
nsCOMPtr<nsIURL> documentURL = do_QueryInterface(documentURI);
if (documentURL) {
rv = documentURL->SetQuery(EmptyCString());
NS_ENSURE_SUCCESS(rv, rv);
}
bool allowed = false;
// The pref may not exist but in that case we deny access just as we do if
// the url doesn't match.
nsCString whitelist;
if (NS_SUCCEEDED(Preferences::GetCString(DOM_TELEPHONY_APP_PHONE_URL_PREF,
&whitelist))) {
nsCOMPtr<nsIIOService> ios = do_GetIOService();
NS_ENSURE_TRUE(ios, NS_ERROR_FAILURE);
nsCCharSeparatedTokenizer tokenizer(whitelist, ',');
while (tokenizer.hasMoreTokens()) {
nsCOMPtr<nsIURI> uri;
if (NS_SUCCEEDED(NS_NewURI(getter_AddRefs(uri), tokenizer.nextToken(),
nsnull, nsnull, ios))) {
rv = documentURI->EqualsExceptRef(uri, &allowed);
NS_ENSURE_SUCCESS(rv, rv);
if (allowed) {
break;
}
}
}
}
if (!allowed) {
*aTelephony = nsnull;
return NS_OK;
}
}
// Security checks passed, make a telephony object.
nsIInterfaceRequestor* ireq = SystemWorkerManager::GetInterfaceRequestor();
NS_ENSURE_TRUE(ireq, NS_ERROR_UNEXPECTED);
nsCOMPtr<nsIRadioInterfaceLayer> ril = do_GetInterface(ireq);
NS_ENSURE_TRUE(ril, NS_ERROR_UNEXPECTED);
nsRefPtr<Telephony> telephony = Telephony::Create(innerWindow, ril);
NS_ENSURE_TRUE(telephony, NS_ERROR_UNEXPECTED);
telephony.forget(aTelephony);
return NS_OK;
}