NS_IMETHODIMP
nsBaseChannel::Open(nsIInputStream **result)
{
NS_ENSURE_TRUE(mURI, NS_ERROR_NOT_INITIALIZED);
NS_ENSURE_TRUE(!mPump, NS_ERROR_IN_PROGRESS);
NS_ENSURE_TRUE(!mWasOpened, NS_ERROR_IN_PROGRESS);
nsCOMPtr<nsIChannel> chan;
nsresult rv = OpenContentStream(false, result, getter_AddRefs(chan));
NS_ASSERTION(!chan || !*result, "Got both a channel and a stream?");
if (NS_SUCCEEDED(rv) && chan) {
rv = Redirect(chan, nsIChannelEventSink::REDIRECT_INTERNAL, false);
if (NS_FAILED(rv))
return rv;
rv = chan->Open(result);
} else if (rv == NS_ERROR_NOT_IMPLEMENTED)
return NS_ImplementChannelOpen(this, result);
if (NS_SUCCEEDED(rv)) {
mWasOpened = true;
ClassifyURI();
}
return rv;
}
NS_IMETHODIMP
nsBaseChannel::AsyncOpen(nsIStreamListener *listener, nsISupports *ctxt)
{
MOZ_ASSERT(!mLoadInfo ||
mLoadInfo->GetSecurityMode() == 0 ||
mLoadInfo->GetInitialSecurityCheckDone() ||
(mLoadInfo->GetSecurityMode() == nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL &&
nsContentUtils::IsSystemPrincipal(mLoadInfo->LoadingPrincipal())),
"security flags in loadInfo but asyncOpen2() not called");
NS_ENSURE_TRUE(mURI, NS_ERROR_NOT_INITIALIZED);
NS_ENSURE_TRUE(!mPump, NS_ERROR_IN_PROGRESS);
NS_ENSURE_TRUE(!mWasOpened, NS_ERROR_ALREADY_OPENED);
NS_ENSURE_ARG(listener);
// Skip checking for chrome:// sub-resources.
nsAutoCString scheme;
mURI->GetScheme(scheme);
if (!scheme.EqualsLiteral("file")) {
NS_CompareLoadInfoAndLoadContext(this);
}
// Ensure that this is an allowed port before proceeding.
nsresult rv = NS_CheckPortSafety(mURI);
if (NS_FAILED(rv)) {
mCallbacks = nullptr;
return rv;
}
// Store the listener and context early so that OpenContentStream and the
// stream's AsyncWait method (called by AsyncRead) can have access to them
// via PushStreamConverter and the StreamListener methods. However, since
// this typically introduces a reference cycle between this and the listener,
// we need to be sure to break the reference if this method does not succeed.
mListener = listener;
mListenerContext = ctxt;
// This method assigns mPump as a side-effect. We need to clear mPump if
// this method fails.
rv = BeginPumpingData();
if (NS_FAILED(rv)) {
mPump = nullptr;
ChannelDone();
mCallbacks = nullptr;
return rv;
}
// At this point, we are going to return success no matter what.
mWasOpened = true;
SUSPEND_PUMP_FOR_SCOPE();
if (mLoadGroup)
mLoadGroup->AddRequest(this, nullptr);
ClassifyURI();
return NS_OK;
}
NS_IMETHODIMP
nsBaseChannel::AsyncOpen(nsIStreamListener *listener, nsISupports *ctxt)
{
NS_ENSURE_TRUE(mURI, NS_ERROR_NOT_INITIALIZED);
NS_ENSURE_TRUE(!mPump, NS_ERROR_IN_PROGRESS);
NS_ENSURE_TRUE(!mWasOpened, NS_ERROR_ALREADY_OPENED);
NS_ENSURE_ARG(listener);
// Ensure that this is an allowed port before proceeding.
nsresult rv = NS_CheckPortSafety(mURI);
if (NS_FAILED(rv)) {
mCallbacks = nullptr;
return rv;
}
// Store the listener and context early so that OpenContentStream and the
// stream's AsyncWait method (called by AsyncRead) can have access to them
// via PushStreamConverter and the StreamListener methods. However, since
// this typically introduces a reference cycle between this and the listener,
// we need to be sure to break the reference if this method does not succeed.
mListener = listener;
mListenerContext = ctxt;
// This method assigns mPump as a side-effect. We need to clear mPump if
// this method fails.
rv = BeginPumpingData();
if (NS_FAILED(rv)) {
mPump = nullptr;
mListener = nullptr;
mListenerContext = nullptr;
mCallbacks = nullptr;
return rv;
}
// At this point, we are going to return success no matter what.
mWasOpened = true;
SUSPEND_PUMP_FOR_SCOPE();
if (mLoadGroup)
mLoadGroup->AddRequest(this, nullptr);
ClassifyURI();
return NS_OK;
}