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/* 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 "PreloadHashKey.h"
#include "mozilla/dom/Element.h" // StringToCORSMode
#include "mozilla/css/SheetLoadData.h"
#include "mozilla/dom/ReferrerPolicyBinding.h"
#include "nsIPrincipal.h"
#include "nsIReferrerInfo.h"
namespace mozilla {
PreloadHashKey::PreloadHashKey(const nsIURI* aKey, ResourceType aAs)
: nsURIHashKey(aKey), mAs(aAs) {}
PreloadHashKey::PreloadHashKey(const PreloadHashKey* aKey)
: nsURIHashKey(aKey->mKey) {
*this = *aKey;
}
PreloadHashKey::PreloadHashKey(PreloadHashKey&& aToMove)
: nsURIHashKey(std::move(aToMove)) {
mAs = std::move(aToMove.mAs);
mCORSMode = std::move(aToMove.mCORSMode);
mPrincipal = std::move(aToMove.mPrincipal);
switch (mAs) {
case ResourceType::SCRIPT:
mScript = std::move(aToMove.mScript);
break;
case ResourceType::STYLE:
mStyle = std::move(aToMove.mStyle);
break;
case ResourceType::IMAGE:
break;
case ResourceType::FONT:
break;
case ResourceType::FETCH:
break;
case ResourceType::NONE:
break;
}
}
PreloadHashKey& PreloadHashKey::operator=(const PreloadHashKey& aOther) {
MOZ_ASSERT(mAs == ResourceType::NONE || aOther.mAs == ResourceType::NONE,
"Assigning more than once, only reset is allowed");
nsURIHashKey::operator=(aOther);
mAs = aOther.mAs;
mCORSMode = aOther.mCORSMode;
mPrincipal = aOther.mPrincipal;
switch (mAs) {
case ResourceType::SCRIPT:
mScript = aOther.mScript;
break;
case ResourceType::STYLE:
mStyle = aOther.mStyle;
break;
case ResourceType::IMAGE:
break;
case ResourceType::FONT:
break;
case ResourceType::FETCH:
break;
case ResourceType::NONE:
break;
}
return *this;
}
// static
PreloadHashKey PreloadHashKey::CreateAsScript(
nsIURI* aURI, CORSMode aCORSMode, JS::loader::ScriptKind aScriptKind) {
PreloadHashKey key(aURI, ResourceType::SCRIPT);
key.mCORSMode = aCORSMode;
key.mScript.mScriptKind = aScriptKind;
return key;
}
// static
PreloadHashKey PreloadHashKey::CreateAsScript(nsIURI* aURI,
const nsAString& aCrossOrigin,
const nsAString& aType) {
JS::loader::ScriptKind scriptKind = JS::loader::ScriptKind::eClassic;
if (aType.LowerCaseEqualsASCII("module")) {
scriptKind = JS::loader::ScriptKind::eModule;
}
CORSMode crossOrigin = dom::Element::StringToCORSMode(aCrossOrigin);
return CreateAsScript(aURI, crossOrigin, scriptKind);
}
// static
PreloadHashKey PreloadHashKey::CreateAsStyle(
nsIURI* aURI, nsIPrincipal* aPrincipal, CORSMode aCORSMode,
css::SheetParsingMode aParsingMode) {
PreloadHashKey key(aURI, ResourceType::STYLE);
key.mCORSMode = aCORSMode;
key.mPrincipal = aPrincipal;
key.mStyle.mParsingMode = aParsingMode;
return key;
}
// static
PreloadHashKey PreloadHashKey::CreateAsStyle(
css::SheetLoadData& aSheetLoadData) {
return CreateAsStyle(aSheetLoadData.mURI, aSheetLoadData.mTriggeringPrincipal,
aSheetLoadData.mSheet->GetCORSMode(),
aSheetLoadData.mSheet->ParsingMode());
}
// static
PreloadHashKey PreloadHashKey::CreateAsImage(nsIURI* aURI,
nsIPrincipal* aPrincipal,
CORSMode aCORSMode) {
PreloadHashKey key(aURI, ResourceType::IMAGE);
key.mCORSMode = aCORSMode;
key.mPrincipal = aPrincipal;
return key;
}
// static
PreloadHashKey PreloadHashKey::CreateAsFetch(nsIURI* aURI, CORSMode aCORSMode) {
PreloadHashKey key(aURI, ResourceType::FETCH);
key.mCORSMode = aCORSMode;
return key;
}
// static
PreloadHashKey PreloadHashKey::CreateAsFetch(nsIURI* aURI,
const nsAString& aCrossOrigin) {
return CreateAsFetch(aURI, dom::Element::StringToCORSMode(aCrossOrigin));
}
PreloadHashKey PreloadHashKey::CreateAsFont(nsIURI* aURI, CORSMode aCORSMode) {
PreloadHashKey key(aURI, ResourceType::FONT);
key.mCORSMode = aCORSMode;
return key;
}
bool PreloadHashKey::KeyEquals(KeyTypePointer aOther) const {
if (mAs != aOther->mAs || mCORSMode != aOther->mCORSMode) {
return false;
}
if (!mPrincipal != !aOther->mPrincipal) {
// One or the other has a principal, but not both... not equal
return false;
}
if (mPrincipal && !mPrincipal->Equals(aOther->mPrincipal)) {
return false;
}
if (!nsURIHashKey::KeyEquals(
static_cast<const nsURIHashKey*>(aOther)->GetKey())) {
return false;
}
switch (mAs) {
case ResourceType::SCRIPT:
if (mScript.mScriptKind != aOther->mScript.mScriptKind) {
return false;
}
break;
case ResourceType::STYLE: {
if (mStyle.mParsingMode != aOther->mStyle.mParsingMode) {
return false;
}
break;
}
case ResourceType::IMAGE:
// No more checks needed. The image cache key consists of the document
// (which we are scoped into), origin attributes (which we compare as part
// of the principal check) and the URL. imgLoader::ValidateEntry compares
// CORS, referrer info and principal, which we do by default.
break;
case ResourceType::FONT:
break;
case ResourceType::FETCH:
// No more checks needed.
break;
case ResourceType::NONE:
break;
}
return true;
}
// static
PLDHashNumber PreloadHashKey::HashKey(KeyTypePointer aKey) {
PLDHashNumber hash = nsURIHashKey::HashKey(aKey->mKey);
// Enough to use the common attributes
hash = AddToHash(hash, static_cast<uint32_t>(aKey->mAs));
hash = AddToHash(hash, static_cast<uint32_t>(aKey->mCORSMode));
return hash;
}
} // namespace mozilla
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