зеркало из https://github.com/mozilla/gecko-dev.git
75 строки
2.2 KiB
C++
75 строки
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "BlobURLChannel.h"
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#include "mozilla/dom/BlobImpl.h"
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#include "mozilla/dom/BlobURL.h"
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#include "mozilla/dom/BlobURLInputStream.h"
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#include "mozilla/ScopeExit.h"
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using namespace mozilla::dom;
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BlobURLChannel::BlobURLChannel(nsIURI* aURI, nsILoadInfo* aLoadInfo)
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: mContentStreamOpened(false) {
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SetURI(aURI);
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SetOriginalURI(aURI);
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SetLoadInfo(aLoadInfo);
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// If we're sandboxed, make sure to clear any owner the channel
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// might already have.
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if (aLoadInfo && aLoadInfo->GetLoadingSandboxed()) {
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SetOwner(nullptr);
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}
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}
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BlobURLChannel::~BlobURLChannel() = default;
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nsresult BlobURLChannel::OpenContentStream(bool aAsync,
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nsIInputStream** aResult,
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nsIChannel** aChannel) {
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if (mContentStreamOpened) {
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return NS_ERROR_ALREADY_OPENED;
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}
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mContentStreamOpened = true;
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nsCOMPtr<nsIURI> uri;
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nsresult rv = GetURI(getter_AddRefs(uri));
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NS_ENSURE_SUCCESS(rv, NS_ERROR_MALFORMED_URI);
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RefPtr<BlobURL> blobURL;
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rv = uri->QueryInterface(kHOSTOBJECTURICID, getter_AddRefs(blobURL));
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if (NS_WARN_IF(NS_FAILED(rv)) || NS_WARN_IF(!blobURL)) {
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return NS_ERROR_MALFORMED_URI;
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}
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if (blobURL->Revoked()) {
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#ifdef MOZ_WIDGET_ANDROID
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nsCOMPtr<nsILoadInfo> loadInfo;
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GetLoadInfo(getter_AddRefs(loadInfo));
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// if the channel was not triggered by the system principal,
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// then we return here because the URL had been revoked
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if (loadInfo && !loadInfo->TriggeringPrincipal()->IsSystemPrincipal()) {
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return NS_ERROR_MALFORMED_URI;
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}
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#else
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return NS_ERROR_MALFORMED_URI;
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#endif
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}
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nsCOMPtr<nsIInputStream> inputStream =
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BlobURLInputStream::Create(this, blobURL);
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if (NS_WARN_IF(!inputStream)) {
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return NS_ERROR_MALFORMED_URI;
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}
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EnableSynthesizedProgressEvents(true);
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inputStream.forget(aResult);
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return NS_OK;
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} |