gecko-dev/dom/base/URL.cpp

116 строки
3.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "URL.h"
#include "nsGlobalWindow.h"
#include "nsIDOMFile.h"
#include "DOMMediaStream.h"
#include "mozilla/dom/MediaSource.h"
#include "nsIDocument.h"
#include "nsIPrincipal.h"
#include "nsContentUtils.h"
#include "nsHostObjectProtocolHandler.h"
namespace mozilla {
namespace dom {
void
URL::CreateObjectURL(const GlobalObject& aGlobal, nsIDOMBlob* aBlob,
const objectURLOptions& aOptions,
nsString& aResult,
ErrorResult& aError)
{
CreateObjectURLInternal(aGlobal.Get(), aBlob,
NS_LITERAL_CSTRING(BLOBURI_SCHEME), aOptions, aResult,
aError);
}
void
URL::CreateObjectURL(const GlobalObject& aGlobal, DOMMediaStream& aStream,
const mozilla::dom::objectURLOptions& aOptions,
nsString& aResult,
ErrorResult& aError)
{
CreateObjectURLInternal(aGlobal.Get(), &aStream,
NS_LITERAL_CSTRING(MEDIASTREAMURI_SCHEME), aOptions,
aResult, aError);
}
void
URL::CreateObjectURL(const GlobalObject& aGlobal, MediaSource& aSource,
const objectURLOptions& aOptions,
nsString& aResult,
ErrorResult& aError)
{
CreateObjectURLInternal(aGlobal.Get(), &aSource,
NS_LITERAL_CSTRING(MEDIASOURCEURI_SCHEME), aOptions,
aResult, aError);
}
void
URL::CreateObjectURLInternal(nsISupports* aGlobal, nsISupports* aObject,
const nsACString& aScheme,
const mozilla::dom::objectURLOptions& aOptions,
nsString& aResult,
ErrorResult& aError)
{
nsCOMPtr<nsPIDOMWindow> w = do_QueryInterface(aGlobal);
nsGlobalWindow* window = static_cast<nsGlobalWindow*>(w.get());
NS_PRECONDITION(!window || window->IsInnerWindow(),
"Should be inner window");
if (!window || !window->GetExtantDoc()) {
aError.Throw(NS_ERROR_INVALID_POINTER);
return;
}
nsIDocument* doc = window->GetExtantDoc();
nsCString url;
nsresult rv = nsHostObjectProtocolHandler::AddDataEntry(aScheme, aObject,
doc->NodePrincipal(), url);
if (NS_FAILED(rv)) {
aError.Throw(rv);
return;
}
doc->RegisterHostObjectUri(url);
CopyASCIItoUTF16(url, aResult);
}
void
URL::RevokeObjectURL(const GlobalObject& aGlobal, const nsAString& aURL)
{
nsCOMPtr<nsPIDOMWindow> w = do_QueryInterface(aGlobal.Get());
nsGlobalWindow* window = static_cast<nsGlobalWindow*>(w.get());
NS_PRECONDITION(!window || window->IsInnerWindow(),
"Should be inner window");
if (!window)
return;
NS_LossyConvertUTF16toASCII asciiurl(aURL);
nsIPrincipal* winPrincipal = window->GetPrincipal();
if (!winPrincipal) {
return;
}
nsIPrincipal* principal =
nsHostObjectProtocolHandler::GetDataEntryPrincipal(asciiurl);
bool subsumes;
if (principal && winPrincipal &&
NS_SUCCEEDED(winPrincipal->Subsumes(principal, &subsumes)) &&
subsumes) {
if (window->GetExtantDoc()) {
window->GetExtantDoc()->UnregisterHostObjectUri(asciiurl);
}
nsHostObjectProtocolHandler::RemoveDataEntry(asciiurl);
}
}
}
}