/* 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 "BlobURLChannel.h"
#ifdef MOZ_WIDGET_ANDROID
# include
"mozilla/BasePrincipal.h"
#endif
#include "mozilla/dom/BlobImpl.h"
#include "mozilla/dom/BlobURL.h"
#include "mozilla/dom/BlobURLInputStream.h"
#include "nsQueryObject.h"
using
namespace mozilla::dom;
NS_IMPL_ISUPPORTS_INHERITED(BlobURLChannel, nsBaseChannel, BlobURLChannel)
BlobURLChannel::BlobURLChannel(nsIURI* aURI, nsILoadInfo* aLoadInfo)
: mContentStreamOpened(
false) {
SetURI(aURI);
SetOriginalURI(aURI);
SetLoadInfo(aLoadInfo);
// If we're sandboxed, make sure to clear any owner the channel
// might already have.
if (aLoadInfo && aLoadInfo->GetLoadingSandboxed()) {
SetOwner(nullptr);
}
}
BlobURLChannel::~BlobURLChannel() =
default;
nsresult BlobURLChannel::SetRequestContentRangeHeader(
const nsACString& aContentRangeHeader) {
NS_ENSURE_FALSE(mContentStreamOpened, NS_ERROR_ALREADY_INITIALIZED);
NS_ENSURE_FALSE(mRequestContentRange, NS_ERROR_ALREADY_INITIALIZED);
// Just parse the range request. We can't construct the full
// mozilla::net::ContentRange here, as the response size is unknown.
mRequestContentRange =
nsContentUtils::ParseSingleRangeRequest(aContentRangeHeader, true);
if (!mRequestContentRange) {
// https://fetch.spec.whatwg.org/#ref-for-simple-range-header-value%E2%91%A1
// If rangeValue is failure, then return a network error.
return NS_ERROR_NET_PARTIAL_TRANSFER;
}
return NS_OK;
}
nsresult BlobURLChannel::SetResponseContentRange(
net::ContentRange* aContentRange) {
NS_ENSURE_ARG(aContentRange);
NS_ENSURE_FALSE(mResponseContentRange, NS_ERROR_ALREADY_INITIALIZED);
mResponseContentRange = aContentRange;
return NS_OK;
}
nsresult BlobURLChannel::GetBackingBlob(BlobImpl** aBlobImpl) {
NS_ENSURE_ARG(aBlobImpl);
NS_ENSURE_TRUE(mBlobImpl, NS_ERROR_NOT_AVAILABLE);
*aBlobImpl = do_AddRef(mBlobImpl).take();
return NS_OK;
}
nsresult BlobURLChannel::SetBackingBlob(BlobImpl* aBlobImpl) {
NS_ENSURE_ARG(aBlobImpl);
NS_ENSURE_FALSE(mBlobImpl, NS_ERROR_ALREADY_INITIALIZED);
mBlobImpl = aBlobImpl;
return NS_OK;
}
NS_IMETHODIMP
BlobURLChannel::SetContentType(
const nsACString& aContentType) {
// If the blob type is empty, set the content type of the channel to the
// empty string.
if (aContentType.IsEmpty()) {
mContentType.Truncate();
return NS_OK;
}
return nsBaseChannel::SetContentType(aContentType);
}
nsresult BlobURLChannel::OpenContentStream(
bool aAsync,
nsIInputStream** aResult,
nsIChannel** aChannel) {
if (mContentStreamOpened) {
return NS_ERROR_ALREADY_OPENED;
}
mContentStreamOpened = true;
nsCOMPtr<nsIURI> uri;
nsresult rv = GetURI(getter_AddRefs(uri));
NS_ENSURE_SUCCESS(rv, NS_ERROR_MALFORMED_URI);
RefPtr<BlobURL> blobURL = do_QueryObject(uri);
if (NS_WARN_IF(NS_FAILED(rv)) || NS_WARN_IF(!blobURL)) {
return NS_ERROR_MALFORMED_URI;
}
if (blobURL->Revoked()) {
#ifdef MOZ_WIDGET_ANDROID
nsCOMPtr<nsILoadInfo> loadInfo;
GetLoadInfo(getter_AddRefs(loadInfo));
// if the channel was not triggered by the system principal,
// then we return here because the URL had been revoked
if (loadInfo && !loadInfo->TriggeringPrincipal()->IsSystemPrincipal()) {
return NS_ERROR_MALFORMED_URI;
}
#else
return NS_ERROR_MALFORMED_URI;
#endif
}
nsCOMPtr<nsIInputStream> inputStream =
BlobURLInputStream::Create(this, blobURL);
if (NS_WARN_IF(!inputStream)) {
return NS_ERROR_MALFORMED_URI;
}
EnableSynthesizedProgressEvents(true);
inputStream.forget(aResult);
return NS_OK;
}