Source code
Revision control
Copy as Markdown
Other Tools
/* -*- 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
#include "BlobURLChannel.h"
#include "mozilla/dom/BlobImpl.h"
#include "mozilla/dom/BlobURL.h"
#include "mozilla/dom/BlobURLInputStream.h"
using namespace mozilla::dom;
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;
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;
rv = uri->QueryInterface(kHOSTOBJECTURICID, getter_AddRefs(blobURL));
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// then we return here because the URL had been revoked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;
}