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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
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dom/base/ChromeUtils.cpp Normal file
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/* -*- 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 "ChromeUtils.h"
#include "mozilla/Base64.h"
#include "mozilla/BasePrincipal.h"
namespace mozilla {
namespace dom {
/* static */ void
ThreadSafeChromeUtils::NondeterministicGetWeakMapKeys(GlobalObject& aGlobal,
JS::Handle<JS::Value> aMap,
JS::MutableHandle<JS::Value> aRetval,
ErrorResult& aRv)
{
if (!aMap.isObject()) {
aRetval.setUndefined();
} else {
JSContext* cx = aGlobal.Context();
JS::Rooted<JSObject*> objRet(cx);
JS::Rooted<JSObject*> mapObj(cx, &aMap.toObject());
if (!JS_NondeterministicGetWeakMapKeys(cx, mapObj, &objRet)) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
} else {
aRetval.set(objRet ? JS::ObjectValue(*objRet) : JS::UndefinedValue());
}
}
}
/* static */ void
ThreadSafeChromeUtils::NondeterministicGetWeakSetKeys(GlobalObject& aGlobal,
JS::Handle<JS::Value> aSet,
JS::MutableHandle<JS::Value> aRetval,
ErrorResult& aRv)
{
if (!aSet.isObject()) {
aRetval.setUndefined();
} else {
JSContext* cx = aGlobal.Context();
JS::Rooted<JSObject*> objRet(cx);
JS::Rooted<JSObject*> setObj(cx, &aSet.toObject());
if (!JS_NondeterministicGetWeakSetKeys(cx, setObj, &objRet)) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
} else {
aRetval.set(objRet ? JS::ObjectValue(*objRet) : JS::UndefinedValue());
}
}
}
/* static */ void
ThreadSafeChromeUtils::Base64URLEncode(GlobalObject& aGlobal,
const ArrayBufferViewOrArrayBuffer& aSource,
const Base64URLEncodeOptions& aOptions,
nsACString& aResult,
ErrorResult& aRv)
{
size_t length = 0;
uint8_t* data = nullptr;
if (aSource.IsArrayBuffer()) {
const ArrayBuffer& buffer = aSource.GetAsArrayBuffer();
buffer.ComputeLengthAndData();
length = buffer.Length();
data = buffer.Data();
} else if (aSource.IsArrayBufferView()) {
const ArrayBufferView& view = aSource.GetAsArrayBufferView();
view.ComputeLengthAndData();
length = view.Length();
data = view.Data();
} else {
MOZ_CRASH("Uninitialized union: expected buffer or view");
}
auto paddingPolicy = aOptions.mPad ? Base64URLEncodePaddingPolicy::Include :
Base64URLEncodePaddingPolicy::Omit;
nsresult rv = mozilla::Base64URLEncode(length, data, paddingPolicy, aResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
aResult.Truncate();
aRv.Throw(rv);
}
}
/* static */ void
ThreadSafeChromeUtils::Base64URLDecode(GlobalObject& aGlobal,
const nsACString& aString,
const Base64URLDecodeOptions& aOptions,
JS::MutableHandle<JSObject*> aRetval,
ErrorResult& aRv)
{
Base64URLDecodePaddingPolicy paddingPolicy;
switch (aOptions.mPadding) {
case Base64URLDecodePadding::Require:
paddingPolicy = Base64URLDecodePaddingPolicy::Require;
break;
case Base64URLDecodePadding::Ignore:
paddingPolicy = Base64URLDecodePaddingPolicy::Ignore;
break;
case Base64URLDecodePadding::Reject:
paddingPolicy = Base64URLDecodePaddingPolicy::Reject;
break;
default:
aRv.Throw(NS_ERROR_INVALID_ARG);
return;
}
FallibleTArray<uint8_t> data;
nsresult rv = mozilla::Base64URLDecode(aString, paddingPolicy, data);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
return;
}
JS::Rooted<JSObject*> buffer(aGlobal.Context(),
ArrayBuffer::Create(aGlobal.Context(),
data.Length(),
data.Elements()));
if (NS_WARN_IF(!buffer)) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return;
}
aRetval.set(buffer);
}
/* static */ void
ChromeUtils::OriginAttributesToSuffix(dom::GlobalObject& aGlobal,
const dom::OriginAttributesDictionary& aAttrs,
nsCString& aSuffix)
{
GenericOriginAttributes attrs(aAttrs);
attrs.CreateSuffix(aSuffix);
}
/* static */ bool
ChromeUtils::OriginAttributesMatchPattern(dom::GlobalObject& aGlobal,
const dom::OriginAttributesDictionary& aAttrs,
const dom::OriginAttributesPatternDictionary& aPattern)
{
GenericOriginAttributes attrs(aAttrs);
OriginAttributesPattern pattern(aPattern);
return pattern.Matches(attrs);
}
/* static */ void
ChromeUtils::CreateOriginAttributesFromOrigin(dom::GlobalObject& aGlobal,
const nsAString& aOrigin,
dom::OriginAttributesDictionary& aAttrs,
ErrorResult& aRv)
{
GenericOriginAttributes attrs;
nsAutoCString suffix;
if (!attrs.PopulateFromOrigin(NS_ConvertUTF16toUTF8(aOrigin), suffix)) {
aRv.Throw(NS_ERROR_FAILURE);
return;
}
aAttrs = attrs;
}
/* static */ void
ChromeUtils::FillNonDefaultOriginAttributes(dom::GlobalObject& aGlobal,
const dom::OriginAttributesDictionary& aAttrs,
dom::OriginAttributesDictionary& aNewAttrs)
{
aNewAttrs = aAttrs;
}
/* static */ bool
ChromeUtils::IsOriginAttributesEqual(dom::GlobalObject& aGlobal,
const dom::OriginAttributesDictionary& aA,
const dom::OriginAttributesDictionary& aB)
{
return IsOriginAttributesEqual(aA, aB);
}
/* static */ bool
ChromeUtils::IsOriginAttributesEqual(const dom::OriginAttributesDictionary& aA,
const dom::OriginAttributesDictionary& aB)
{
return aA.mAddonId == aB.mAddonId &&
aA.mAppId == aB.mAppId &&
aA.mInIsolatedMozBrowser == aB.mInIsolatedMozBrowser &&
aA.mUserContextId == aB.mUserContextId &&
aA.mPrivateBrowsingId == aB.mPrivateBrowsingId;
}
/* static */ bool
ChromeUtils::IsOriginAttributesEqualIgnoringAddonId(const dom::OriginAttributesDictionary& aA,
const dom::OriginAttributesDictionary& aB)
{
return aA.mAppId == aB.mAppId &&
aA.mInIsolatedMozBrowser == aB.mInIsolatedMozBrowser &&
aA.mUserContextId == aB.mUserContextId &&
aA.mPrivateBrowsingId == aB.mPrivateBrowsingId;
}
} // namespace dom
} // namespace mozilla