gecko-dev/dom/base/nsContentPermissionHelper.cpp
2013-12-10 01:03:21 -05:00

202 lines
5.1 KiB
C++

/* 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/. */
#ifdef MOZ_WIDGET_GONK
#include "GonkPermission.h"
#include "mozilla/dom/ContentParent.h"
#endif // MOZ_WIDGET_GONK
#include "nsContentPermissionHelper.h"
#include "nsIContentPermissionPrompt.h"
#include "nsCOMPtr.h"
#include "nsIDOMElement.h"
#include "nsIPrincipal.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/TabParent.h"
#include "mozilla/unused.h"
#include "nsComponentManagerUtils.h"
using mozilla::unused; // <snicker>
using namespace mozilla::dom;
using namespace mozilla;
nsContentPermissionRequestProxy::nsContentPermissionRequestProxy()
{
MOZ_COUNT_CTOR(nsContentPermissionRequestProxy);
}
nsContentPermissionRequestProxy::~nsContentPermissionRequestProxy()
{
MOZ_COUNT_DTOR(nsContentPermissionRequestProxy);
}
nsresult
nsContentPermissionRequestProxy::Init(const nsACString & type,
const nsACString & access,
ContentPermissionRequestParent* parent)
{
NS_ASSERTION(parent, "null parent");
mParent = parent;
mType = type;
mAccess = access;
nsCOMPtr<nsIContentPermissionPrompt> prompt = do_CreateInstance(NS_CONTENT_PERMISSION_PROMPT_CONTRACTID);
if (!prompt) {
return NS_ERROR_FAILURE;
}
prompt->Prompt(this);
return NS_OK;
}
void
nsContentPermissionRequestProxy::OnParentDestroyed()
{
mParent = nullptr;
}
NS_IMPL_ISUPPORTS1(nsContentPermissionRequestProxy, nsIContentPermissionRequest)
NS_IMETHODIMP
nsContentPermissionRequestProxy::GetType(nsACString & aType)
{
aType = mType;
return NS_OK;
}
NS_IMETHODIMP
nsContentPermissionRequestProxy::GetAccess(nsACString & aAccess)
{
aAccess = mAccess;
return NS_OK;
}
NS_IMETHODIMP
nsContentPermissionRequestProxy::GetWindow(nsIDOMWindow * *aRequestingWindow)
{
NS_ENSURE_ARG_POINTER(aRequestingWindow);
*aRequestingWindow = nullptr; // ipc doesn't have a window
return NS_OK;
}
NS_IMETHODIMP
nsContentPermissionRequestProxy::GetPrincipal(nsIPrincipal * *aRequestingPrincipal)
{
NS_ENSURE_ARG_POINTER(aRequestingPrincipal);
if (mParent == nullptr) {
return NS_ERROR_FAILURE;
}
NS_ADDREF(*aRequestingPrincipal = mParent->mPrincipal);
return NS_OK;
}
NS_IMETHODIMP
nsContentPermissionRequestProxy::GetElement(nsIDOMElement * *aRequestingElement)
{
NS_ENSURE_ARG_POINTER(aRequestingElement);
if (mParent == nullptr) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIDOMElement> elem = do_QueryInterface(mParent->mElement);
elem.forget(aRequestingElement);
return NS_OK;
}
NS_IMETHODIMP
nsContentPermissionRequestProxy::Cancel()
{
if (mParent == nullptr) {
return NS_ERROR_FAILURE;
}
// Don't send out the delete message when the managing protocol (PBrowser) is
// being destroyed and PContentPermissionRequest will soon be.
if (mParent->IsBeingDestroyed()) {
return NS_ERROR_FAILURE;
}
unused << ContentPermissionRequestParent::Send__delete__(mParent, false);
mParent = nullptr;
return NS_OK;
}
NS_IMETHODIMP
nsContentPermissionRequestProxy::Allow()
{
if (mParent == nullptr) {
return NS_ERROR_FAILURE;
}
// Don't send out the delete message when the managing protocol (PBrowser) is
// being destroyed and PContentPermissionRequest will soon be.
if (mParent->IsBeingDestroyed()) {
return NS_ERROR_FAILURE;
}
#ifdef MOZ_WIDGET_GONK
if (mType.Equals("audio-capture")) {
GonkPermissionService::GetInstance()->addGrantInfo(
"android.permission.RECORD_AUDIO",
static_cast<TabParent*>(mParent->Manager())->Manager()->Pid());
}
#endif
unused << ContentPermissionRequestParent::Send__delete__(mParent, true);
mParent = nullptr;
return NS_OK;
}
namespace mozilla {
namespace dom {
ContentPermissionRequestParent::ContentPermissionRequestParent(const nsACString& aType,
const nsACString& aAccess,
Element* aElement,
const IPC::Principal& aPrincipal)
{
MOZ_COUNT_CTOR(ContentPermissionRequestParent);
mPrincipal = aPrincipal;
mElement = aElement;
mType = aType;
mAccess = aAccess;
}
ContentPermissionRequestParent::~ContentPermissionRequestParent()
{
MOZ_COUNT_DTOR(ContentPermissionRequestParent);
}
bool
ContentPermissionRequestParent::Recvprompt()
{
mProxy = new nsContentPermissionRequestProxy();
NS_ASSERTION(mProxy, "Alloc of request proxy failed");
if (NS_FAILED(mProxy->Init(mType, mAccess, this))) {
mProxy->Cancel();
}
return true;
}
void
ContentPermissionRequestParent::ActorDestroy(ActorDestroyReason why)
{
if (mProxy) {
mProxy->OnParentDestroyed();
}
}
bool
ContentPermissionRequestParent::IsBeingDestroyed()
{
// When TabParent::Destroy() is called, we are being destroyed. It's unsafe
// to send out any message now.
TabParent* tabParent = static_cast<TabParent*>(Manager());
return tabParent->IsDestroyed();
}
} // namespace dom
} // namespace mozilla